SPINNING MACHINE
BACKGROUND OF THE INVENTION
1. Field of the Invention
[0001] The present invention relates to a spinning machine.
2. Description of the Related Art
[0002] Conventionally, a spinning machine capable of performing a yarn joining process of disconnected yarns before starting winding of a yarn is known. JP 2014-9052 A discloses this type of spinning machine.
[0003] A spinning machine of JP 2014-9052 A includes a plurality of spinning units and a yarn joining cart. Each spinning unit includes a spinning device that produces a spun yarn, and a winding device that winds the spun yarn to form a package. When a yarn is disconnected in any spinning unit, the yarn joining cart can travel to the spinning unit.
[0004] The yarn joining cart includes a suction pipe, a suction mouth, and a yarn joining device. The suction pipe catches one yarn (a yarn on the spinning device side) of the disconnected yarns and guides the yarn to the yarn joining device. The suction mouth catches

another yarn (a yarn on the package side of the winding device) of the disconnected yarns and guides the another yarn to the yarn joining device. The yarn joining device performs yarn joining by using the yarns guided by the suction pipe and the suction mouth.
[0005] In the configuration of JP 2014-9052 A, the spinning machine has had to use the suction mouth alone to catch the yarn on the package side.
BRIEF SUMMARY OF THE INVENTION [0006] An object of the present invention is to provide a spinning machine capable of flexibly catching a yarn on a package side.
[0007] According to a first aspect of the present invention, a spinning machine having the following configuration is provided. That is, the spinning machine includes a spinning device, a winding device, a yarn accumulating device, a fixed catching device, and a movable catching device. The spinning device produces a yarn by spinning a fiber bundle, and supplies the yarn. The winding device winds the yarn supplied from the spinning device, to form a package. The yarn accumulating device is arranged on a yarn travelling path formed between the spinning device and the winding

device. The fixed catching device catches a catching portion, which is a yarn on the package side, when a yarn is disconnected between the spinning device and the winding device. The fixed catching device is provided with respect to the yarn travelling path. The movable catching device catches the catching portion. The movable catching device moves between an approach position close to the winding device and a retreated position spaced apart more from the winding device than the approach position. Which one of the fixed catching device and the movable catching device is to be used is changed according to a factor of the spinning machine interrupting spinning by the spinning device, a state at a start of spinning by the spinning device, or a yarn type of the yarn.
[0008] This allows the fixed catching device and the movable catching device to be flexibly and selectively used when a yarn is disconnected. Therefore, the yarn on the package side can be efficiently prepared using the fixed catching device or the movable catching device, for a start of winding of the yarn. As a result, as the entire spinning machine, a success rate of catching of a yarn on the package side can be improved, and time required for preparation for a start of winding

of the yarn can be shortened.
[0009] It is preferable to include a control device that controls at least the spinning device, the winding device, the fixed catching device, and the movable catching device.
[0010] This makes it possible to change which one of the fixed catching device and the movable catching device is to be used.
[0011] When the fixed catching device is used, it is preferable that the winding device stops winding at a timing when the catching portion is located in a region where the fixed catching device is able to catch the catching portion, or the winding device decelerates the winding so that the yarn travels in a state of being able to be caught by the fixed catching device at a timing when the catching portion is located in a region where the fixed catching device is able to catch the catching portion.
[0012] This allows the yarn on the package side to be easily caught by the fixed catching device. [0013] When the fixed catching device fails in catching a yarn on the package side after stopping of the winding of the yarn on the package side or deceleration of the winding, it is preferable that the

winding device winds the yarn on the package side, and the movable catching device is used to catch the catching portion wound into the package, based on a fact that a state at a start of spinning by the spinning device is a state in which the catching portion is wound into the package.
[0014] This allows the yarn on the package side to be reliably caught.
[0015] When the movable catching device is used, the winding device preferably performs the winding of the yarn at least until a timing when the catching portion is located downstream of the fixed catching device in a yarn travelling direction.
[0016] This allows the yarn on the package side to be easily caught by the movable catching device. [0017] When spinning by the spinning device is interrupted, the fixed catching device is preferably used.
[0018] This allows the fixed catching device to be effectively used.
[0019] It is preferable that a detection device that detects a yarn breakage on an upstream side of the yarn accumulating device in a yarn travelling direction is provided, determination is made as to whether or not the

fixed catching device is able to catch the catching portion when spinning by the spinning device is interrupted due to detection of the yarn breakage by the detection device as a factor of interruption of spinning by the spinning device, the fixed catching device is used when a result of the determination is positive, and the movable catching device is used when the result of the determination is negative.
[0020] This can increase a frequency of use of the fixed catching device. Therefore, the time required for the preparation for the start of the winding of the yarn can be further shortened.
[0021] When spinning is interrupted due to disconnection of a yarn before spinning by the spinning device is interrupted as a factor of interruption of spinning by the spinning device, the movable catching device is preferably used when spinning is started thereafter.
[0022] This allows the yarn on the package side to be reliably caught. Further, since the use of the movable catching device has been determined, the spinning machine can efficiently prepare the yarn on the package side.
[0023] It is preferable to include a setting section

that performs setting to inhibit catching of the catching portion by the fixed catching device.
[0024] This enables appropriate response to a situation in which catching of the yarn by the fixed catching device is not preferable.
[0025] The present invention preferably has the following configuration. That is, the present invention includes a plurality of spinning units and a work cart. The work cart travels for the plurality of spinning units. Each spinning unit includes a spinning device, a yarn accumulating device, and a winding device. The fixed catching device is provided in each spinning unit. The movable catching device is provided in the work cart.
[0026] Thus, when the use of the fixed catching device is determined, the work cart does not need to be moved for a predetermined spinning unit. The fixed catching device is used more frequently than the movable catching device. Therefore, the yarn on the package side can be efficiently caught.
[0027] It is preferable that a yarn detection device that detects a state of a yarn on an upstream side of the yarn accumulating device in a yarn travelling direction is provided, and the fixed catching device is used when spinning by the spinning device is interrupted

on the basis of a detection result of the yarn detection device as a factor of interruption of spinning by the spinning device.
[0028] This allows the fixed catching device to be effectively used.
[0029] The present invention preferably has the following configuration. That is, as a state at a start of spinning by the spinning device, when spinning by the spinning device is interrupted on the basis of a detection result of the yarn detection device and the fixed catching device fails in catching a yarn on the package side, the movable catching device is used. Alternatively, as a factor of interruption of spinning by the spinning device, when there is a failure in yarn joining by the yarn joining device arranged on a downstream side of the yarn accumulating device in the yarn travelling direction, or when spinning is stopped due to a power failure or an instantaneous power failure, the movable catching device is used when spinning is started thereafter.
[0030] This allows the movable catching device to be effectively used.
[0031] The present invention preferably has the following configuration. That is, as a state at a start

of spinning by the spinning device, when spinning by the spinning device is interrupted due to a power failure or an instantaneous power failure, and the spinning is stopped in a state in which a yarn is connected between the yarn accumulating device and the package, a yarn on the package side is wound by the winding device, a yarn remaining on a yarn accumulating roller of the yarn accumulating device is unwound from the yarn accumulating roller, and the catching portion is caught with use of the fixed catching device when spinning by the spinning device is started after power restoration.
[0032] This allows the fixed catching device to be more effectively used.
[0033] As a factor of interruption of spinning by the spinning device, when spinning by the spinning device is interrupted due to a power failure or an instantaneous power failure, it is preferable that a winding width of the package is narrowed, and the catching portion is caught with use of the movable catching device when spinning by the spinning device is started after power restoration.
[0034] This allows the movable catching device to be more effectively used.
[0035] The present invention preferably has the

following configuration. That is, the present invention includes a yarn joining device. When a yarn is disconnected between the spinning device and the winding device, the yarn joining device performs yarn joining between a yarn on the spinning device side and a yarn on the package side. The yarn on the package side is guided to the yarn joining device by the movable catching device moving to the retreated position with the catching portion caught.
The yarn joining device joins the yarn on the spinning device side and the yarn on the package side in a state in which the yarn on the package side is caught by the fixed catching device or the movable catching device. The fixed catching device or the movable catching device having caught the catching portion after a yarn is disconnected between the spinning device and the winding device is the same as the fixed catching device or the movable catching device to guide the yarn on the package side to the yarn joining device.
[0036] This allows the yarn joining by the yarn joining device to be smoothly performed.
[0037] It is preferable to include a yarn catching detection sensor that detects whether or not a yarn on the package side is successfully caught by the fixed

catching device.
[0038] This makes it possible to automatically switch from the use of the fixed catching device to the use of the movable catching device depending on a situation.
[0039] It is preferable that the fixed catching device is configured to catch the catching portion by suctioning the yarn on the package side, the fixed catching device includes a changing section that changes the fixed catching device between a suction state and a suction stopped state, and the changing section brings the fixed catching device into the suction stopped state while a yarn is wound in a continuous state of the yarn between the winding device and the spinning device. [0040] As a result, since the suction can be stopped while the suction by the fixed catching device is unnecessary, energy saving in the spinning machine can be achieved.
[0041] It is preferable that a yarn detection device that detects a state of a yarn on an upstream side of the yarn accumulating device in a yarn travelling direction is provided, and the changing section changes the fixed catching device from a suction stopped state to a suction state at a timing later than a timing of

interruption of the spinning and at a timing when a yarn remains on the yarn accumulating roller of the yarn accumulating device, when spinning by the spinning device is interrupted on the basis of a detection result of the yarn detection device as a factor of interruption of spinning by the spinning device.
[0042] This allows the yarn on the package side to be reliably caught by the fixed catching device. [0043] According to a second aspect of the present invention, a spinning machine having the following configuration is provided. That is, the second aspect of the present invention includes a plurality of spinning units, a work cart, and a yarn joining device. The work cart travels for the plurality of spinning units. Each spinning unit includes a spinning device, a winding device, and a yarn accumulating device. The spinning device produces a yarn by spinning a fiber bundle, and supplies the yarn. The winding device winds the yarn supplied from the spinning device, to form a package. The yarn accumulating device is arranged on a yarn travelling path formed between the spinning device and the winding device. When a yarn is disconnected between the spinning device and the winding device, the yarn joining device performs yarn joining between a yarn on

the spinning device side and a yarn on the package side. Each spinning unit includes a fixed catching device. The fixed catching device catches a catching portion that is a yarn on the package side. The fixed catching device is provided between the yarn accumulating device and the winding device, and is arranged on an upstream side of the yarn joining device in the yarn travelling direction. The work cart includes the movable catching device. The movable catching device moves between the approach position close to the winding device and the retreated position spaced apart more from the winding device than the approach position. The movable catching device catches the catching portion at the approach position and moves from the approach position to the retreated position with the catching portion caught. The retreated position is a position farther than the yarn joining device with respect to the winding device. The yarn joining device joins the yarn on the spinning device side and the yarn on the package side in a state in which the yarn on the package side is caught by the fixed catching device or the movable catching device. [0044] This makes it possible to appropriately and selectively use the movable catching device and the fixed catching device for yarn joining when a yarn is

disconnected. Therefore, a yarn joining operation can be appropriately performed by using the movable catching device or the fixed catching device. As a result, as the entire spinning machine, a success rate of catching of a yarn on the package side can be improved, and time required for preparation for a start of winding of the yarn can be shortened.
[0045] It is preferable that yarn joining using the fixed catching device and yarn joining using the movable catching device are switchable at a start of spinning after interruption of spinning by the spinning device. Further, when the fixed catching device is used, the winding of a yarn on the package side by the winding device is preferably performed such that the yarn on the package side is located in a region where the fixed catching device is able to catch the yarn on the package side after the interruption of the spinning by the spinning device, and, when the movable catching device is used, the work cart is preferably arranged at a position corresponding to a spinning unit in which a yarn is disconnected.
[0046] This makes it possible to reliably catch the yarn on the package side by using the movable catching device or the fixed catching device.

BRIEF DESCRIPTION OF THE DRAWINGS [0047] FIG. 1 is a schematic front view illustrating an overall configuration of a spinning machine according to one embodiment of the present invention;
FIG. 2 is a side view illustrating a spinning unit in the spinning machine;
FIG. 3 is a side view illustrating a state in which a spun yarn is disconnected in the spinning unit and a yarn joining cart travels to the spinning unit;
FIG. 4 is a side view illustrating a state in which fixed catching yarn joining is performed when spinning is started; and
FIG. 5 is a side view illustrating a state in which moving catching yarn joining is performed when spinning is started.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS [0048] A spinning machine 1 according to one embodiment of the present invention will be described with reference to the drawings. In the following description, "upstream" and "downstream" respectively mean upstream and downstream in a travelling direction (a yarn travelling direction) of a spun yarn (a yarn)

33, a sliver 35, or a fiber bundle 37 during winding of the spun yarn 33.
[0049] As illustrated in FIG. 1, the spinning machine 1 includes a blower box 3, a motor box 5, a plurality of spinning units 7, and a yarn joining cart
(a work cart) 9. The plurality of spinning units 7 are arranged in line in a predetermined direction. Each spinning unit 7 (the spinning machine 1) performs spinning using a spinning device 23 and the like described later. In the present embodiment, the spinning machine 1 is configured as a pneumatic spinning machine.
[0050] A blower 11 that functions as a negative pressure source and the like are arranged in the blower box 3 .
[0051] A driving source (not illustrated), a central control device 13, a display section 15, and an operating section 17 are arranged in the motor box 5. The driving source provided in the motor box 5 includes an electric motor commonly used by the plurality of spinning units 7.
[0052] The central control device 13 (an example of a control device) collectively manages and controls each section of the spinning machine 1. The central control

device 13 is connected to a unit control section 19 (an example of a control device) included in each spinning unit 7 as illustrated in FIG. 2, via a signal line (not illustrated). Although each of the spinning units 7 includes the unit control section 19 in the present embodiment, a predetermined number of (for example, two or four) spinning units 7 may share one unit control section 19.
[0053] The display section 15 can display information relating to set contents made for the spinning units 7 and/or a state of each spinning unit 7, and the like. The operating section 17 is operated by an operator to set the spinning machine 1 and/or to select information to be displayed on the display section 15. The display section 15 and the operating section 17 may include a touch panel display.
[0054] As illustrated in FIG. 2, each spinning unit 7 includes a draft device 21, the spinning device 23, a yarn accumulating device 25, a suction device (a fixed catching device) 29, and a winding device 31. These devices are arranged in order from upstream to downstream in a travelling direction of the spun yarn 33 and the like. The draft device 21 and the spinning device 23 constitute a yarn supplying device in the spinning unit

7.
[0055] The yarn joining cart 9 is provided to be movable with respect to each spinning unit 7. One yarn joining cart 9 is provided for the plurality of spinning units 7. Although one yarn joining cart 9 is illustrated in FIG. 1, the spinning machine 1 may include a plurality of yarn joining carts 9. As will be described later, the yarn joining cart 9 includes a yarn joining device 105, a suction pipe 107, and a suction mouth (a movable catching device) 109.
[0056] The draft device 21 is provided at an upper portion of the spinning unit 7 (the spinning machine 1). The draft device 21 includes a plurality of pairs of draft rollers. Each pair of draft rollers is configured by two draft rollers.
[0057] Specifically, the draft device 21 includes four pairs of draft rollers. The four pairs of draft rollers include a pair of back rollers 41, a pair of third rollers 43, a pair of middle rollers 45, and a pair of front rollers 47 arranged sequentially from upstream to downstream. In each draft roller of the pair of middle rollers 45, an apron belt 49 is provided.
[0058] Each of the four pairs of draft rollers includes a driving roller and a driven roller facing

each other. Regarding the four pairs of draft rollers, a driving source such as a motor (not illustrated) is provided in each driving roller. Each driving roller is rotationally driven about an axis of the driving roller by the driving source. The driven roller of each pair of draft rollers is rotatably provided around an axis of the driven roller via a bearing (not illustrated) or the like.
[0059] The draft device 21 conveys the sliver 35 supplied from a sliver supplying section 97 by sandwiching the sliver 35 between the draft rollers (between the driving roller and the driven roller) of each pair of draft rollers to stretch (draft) the sliver 35 until a predetermined fiber amount (or a thickness) is obtained, to produce the fiber bundle 37. The fiber bundle 37 formed by the draft device 21 is supplied to the spinning device 23.
[0060] The sliver supplying section 97 is arranged upstream of the draft device 21. A can, which is a container that accommodates the sliver 35, is arranged in the sliver supplying section 97. The unit control section 19 can calculate a sliver remaining amount in the can on the basis of a set value of the draft device 21, and the like. Instead of the unit control section

19, the central control device 13 may calculate the sliver remaining amount in the can. Further, the calculation of the sliver remaining amount in the can may be omitted.
[0061] Between the draft device 21 and the sliver supplying section 97, a sliver sensor 99 for detection of presence or absence of the sliver 35 is provided. By the sliver sensor 99, the presence of the sliver 35 supplied to the draft device 21 can be detected. Note that the sliver sensor 99 is not necessarily required.
[0062] In the present embodiment, the spinning device 23 is configured as a pneumatic spinning device. The spinning device 23 applies twists by applying a whirling airflow to the fiber bundle 37 (the drafted sliver 35) produced by the draft device 21, to produce the spun yarn 33. The spinning device 23 is arranged downstream of the draft device 21.
[0063] In the spinning unit 7 (the spinning machine 1), the yarn supplying device including the draft device 21 and the spinning device 23 supplies the spun yarn 33. The spun yarn 33 produced by the yarn supplying device travels from the yarn supplying device toward the winding device 31, and is wound by the winding device 31. Between the yarn supplying device and the winding device

31, a yarn path (a yarn travelling path) in which the spun yarn 33 travels is formed.
[0064] The yarn accumulating device 25 draws out and temporarily accumulates the spun yarn 33 produced by the spinning device 23. The yarn accumulating device 25 is arranged on the yarn path formed between the yarn supplying device and the winding device 31. Specifically, the yarn accumulating device 25 is arranged downstream of the spinning device 23. [0065] The yarn accumulating device 25 includes a yarn accumulating roller 53, an electric motor 55, a yarn hooking member 57, a guide 59, and a yarn accumulated amount detection sensor 61.
[0066] The yarn accumulating roller 53 is rotatably driven by the electric motor 55. The yarn accumulating roller 53 temporarily accumulates the spun yarn 33 by having the spun yarn 33 wound on its outer peripheral surface. By rotating at a predetermined rotation speed with the spun yarn 33 wound on the outer peripheral surface, the yarn accumulating roller 53 can draw out the spun yarn 33 from the spinning device 23 at a predetermined speed.
[0067] The yarn hooking member 57 can hook the spun yarn 33. The yarn hooking member 57 with the spun yarn

33 being hooked guides the spun yarn 33 to the outer peripheral surface of the yarn accumulating roller 53 by rotating integrally with the yarn accumulating roller 53. [0068] The guide 59 is arranged downstream of the yarn accumulating roller 53. The guide 59 regulates a path of the spun yarn 33 swung around by the rotating yarn hooking member 57, and guides the spun yarn 33 by stabilizing the yarn path on the downstream side (a winding device 31 side) of the guide 59 in the yarn path along which the spun yarn 33 travels.
[0069] The yarn accumulated amount detection sensor 61 can detect a yarn accumulated amount of the yarn accumulating roller 53. The yarn accumulated amount detection sensor 61 is arranged to face an appropriate position on the outer peripheral surface of the yarn accumulating roller 53. The yarn accumulated amount detection sensor 61 detects presence or absence of the spun yarn 33 at this position. The yarn accumulated amount detection sensor 61 transmits a detected detection signal to the unit control section 19. On the basis of the detection signal, the unit control section 19 can detect whether or not the yarn accumulated amount is equal to or greater than a predetermined amount. [0070] The yarn accumulating device 25 can

temporarily accumulate the spun yarn 33 on the outer peripheral surface of the yarn accumulating roller 53, and thus functions as a kind of buffer for the spun yarn 33. This can solve a trouble (such as slackening of the spun yarn 33, for example) that occurs when a spinning speed in the spinning device 23 and a winding speed (a travelling speed of the spun yarn 33 to be wound into a package 93, which will be described later) do not correspond for some reason.
[0071] Between the spinning device 23 and the yarn accumulating device 25, a yarn monitoring device (a detection device, a yarn detection device) 63 and a spinning sensor 69 (a yarn detection device) are provided The yarn monitoring device 63 and the spinning sensor 69 detect a state of the spun yarn 33 on an upstream side (a yarn supplying device side) of the yarn accumulating device 25. The spun yarn 33 produced in the spinning device 23 passes through the yarn monitoring device 63 and the spinning sensor 69 before being accumulated in the yarn accumulating device 25.
[0072] The yarn monitoring device 63 monitors quality of the travelling spun yarn 33 with an optical sensor, and detects a yarn defect included in the spun yarn 33. Examples of the yarn defect include an

abnormality in a thickness of the spun yarn 33 and/or a foreign substance contained in the spun yarn 33. When the yarn defect of the spun yarn 33 is detected, the yarn monitoring device 63 sends a yarn defect detection signal to the unit control section 19. The yarn monitoring device 63 may monitor the quality of the spun yarn 33 by using, for example, a capacitance sensor instead of the optical sensor.
[0073] The spinning sensor 69 is arranged immediately downstream of the yarn monitoring device 63. The spinning sensor 69 detects a tension of the spun yarn 33 between the spinning device 23 and the yarn accumulating device 25. The spinning sensor 69 transmits a detection signal of the detected tension to the unit control section 19. The unit control section 19 can detect an abnormal portion such as a weak yarn by monitoring the tension detected by the spinning sensor 69. Note that the spinning sensor 69 can be omitted.
[0074] In order to maintain the yarn quality, the yarn defect and the abnormal portion are preferably removed. The unit control section 19 determines whether or not to cut the spun yarn 33 on the basis of a detection result of at least one of the yarn monitoring device 63 or the spinning sensor 69. Cutting of the spun yarn 33

is realized by the unit control section 19 performing control to stop spinning by the spinning device 23. The cutting of the spun yarn 33 may be realized by stopping drafting (rotation of the pair of back rollers 41) by the draft device 21. The spinning unit 7 may include a cutter, and the unit control section 19 may cut the spun yarn 33 with the cutter. Even when the spun yarn 33 is cut by the cutter, the unit control section 19 controls the spinning by the spinning device 23 to be substantially interrupted.
[0075] The suction device 29 can suction the spun yarn 33 on the package 93 side when the spun yarn 33 is disconnected. The suction device 29 is provided between the yarn accumulating device 25 and the winding device 31. In the present embodiment, the suction device 29 is fixedly provided, but may be provided to be movable to an extent. For example, the suction device 29 may be provided to be slightly contactable with and separable from the yarn path. In other words, the suction device 29 is provided so as not to move as much as the suction mouth 109. When the yarn joining cart 9 to be described later performs work on the spinning unit 7, the suction device 29 is located upstream of the yarn joining device 105 of the yarn joining cart 9. When the spun yarn 33

is disconnected between the spinning device 23 and the winding device 31, the suction device 29 can catch the spun yarn 33 on the winding device 31 side (the package 93 side).
[0076] The yarn joining device 105 includes a yarn moving lever (not illustrated). The spun yarn 33 caught by the suction device 29 is taken into the yarn joining device 105, by the yarn moving lever being operated. The yarn joining cart 9 further includes the suction mouth 109. When the spun yarn 33 on the package 93 side is not caught with the suction device 29, the suction mouth 109 catches the spun yarn 33 instead of the suction device 29. A configuration of the yarn joining cart 9 will be described later. Note that, in order to bring the spun yarn 33 and the yarn joining device 105 close to each other, the yarn joining device 105 may be provided to be contactable with and separable from the yarn path.
[0077] When the spun yarn 33 is disconnected, the unit control section 19 determines use/non-use of the suction device 29, and appropriately controls the suction device 29 on the basis of the determination. The suction device 29 and the suction mouth 109 are alternatively selected and used for catching the spun

yarn 33 on the package 93 side. Therefore, the use of the suction device 29 means non-use of the suction mouth 109, and the non-use of the suction device 29 means use of the suction mouth 109. Note that the non-use of the suction device 29 also includes a case where the suction device 29 is used but catching of the spun yarn 33 fails. [0078] The use/non-use of the suction device 29 is determined in consideration of at least one of a cause of disconnection of the spun yarn 33 (a spinning interruption factor) or a state of the spinning machine 1 at a start of spinning. The start of spinning includes, for example, a start of first spinning immediately after factory shipment and a restart after interruption of spinning.
[0079] When the unit control section 19 determines to use the suction device 29, the suction device 29 is controlled by the unit control section 19 to suction and catch the spun yarn 33 on the package 93 side on the downstream side of the yarn accumulating device 25 (the guide 59). A timing when the suction device 29 starts to apply a suction airflow to the spun yarn 33 is after the spun yarn 33 is disconnected, and is a predetermined timing before a yarn end of the spun yarn 33 on the package 93 side passes the suction device 29.

[0080] The suction device 29 includes a suction pipe 71. A suction port 73 is formed at a distal end (one end in a longitudinal direction) of the suction pipe 71. The suction port 73 is opened toward the yarn path described above formed in the spinning unit 7 . The suction pipe 71 is connected to a negative pressure source such as the blower 11 via a pipe or the like. This allows a suction airflow to be generated in the suction port 73 (in the suction pipe 71) . Unlike the suction mouth 109 to be described later, the suction pipe 71 is fixedly provided in the spinning unit 7. Therefore, a position of the suction port 73 is constant. [0081] In the present embodiment, the suction device 29 is provided with a shutter (a changing section) 77. A state of the suction device 29 is changed to a suction state and a suction stopped state by the shutter 77. The shutter 77 is arranged, for example, between the suction port 73 and a portion of the suction device 29 on a downstream side of the suction port 73 in a direction in which the air flows. The shutter 77 includes, for example, an opening/closing mechanism having a plate-shaped member. The shutter 77 can be opened and closed under control of the unit control section 19. Note that the shutter 77 can be omitted in

the suction device 29.
[0082] When spinning is normally performed without disconnection of the spun yarn 33, the suction device 29 does not need to be operated. The case where the spinning is normally performed is when the spun yarn 33 is supplied by the yarn supplying device (the draft device 21 and the spinning device 23), and the spun yarn 33 is wound by the winding device 31. In this case, since the shutter 77 is closed by the unit control section 19, the suction device 29 is brought into the suction stopped state. Therefore, energy saving in the spinning machine 1 can be achieved.
[0083] When the spun yarn 33 is disconnected and spinning is interrupted, and the unit control section 19 determines to use the suction device 29, the shutter 77 is opened by the unit control section 19. When considering a case where the spun yarn 33 is disconnected at a location of the spinning device 23 by spinning stop of the spinning device 23, a timing when the shutter 77 is opened is later than a timing when spinning is interrupted, and is a timing when the spun yarn 33 remains on the yarn accumulating roller 53 of the yarn accumulating device 25. Since a state of the suction device 29 is changed from the suction stopped state to

the suction state at this timing, the suction device 29 can catch the spun yarn 33 on the package 93 side. Note that the timing when the shutter 77 is opened can be freely changed, but can be determined by a detection signal of the yarn accumulated amount detection sensor 61, for example.
[0084] The suction device 29 is provided with a yarn catching detection sensor 79. In the present embodiment, the yarn catching detection sensor 79 is arranged immediately downstream of the suction device 29. The yarn catching detection sensor 79 can detect whether or not the spun yarn 33 on the package 93 side is successfully caught by the suction device 29. The yarn catching detection sensor 79 detects the presence or absence of the spun yarn 33 immediately downstream of the suction device 29, and transmits a detection signal to the unit control section 19. On the basis of the detection signal from the yarn catching detection sensor 79, the unit control section 19 can detect whether or not the catching by the suction device 29 has succeeded. [0085] As illustrated in FIG. 1, a setting section 121 is provided for the suction device 29 in each spinning unit 7. The setting section 121 is used to prevent catching of the spun yarn 33 on the package 93

side by the suction device 29. The setting section 121 is operated to transmit a prevention signal to the unit control section 19. When receiving the prevention signal, the unit control section 19 controls the shutter 77 to maintain the suction device 29 in the suction stopped state. Note that the setting section 121 can be configured as, for example, an emergency stop button, a hardware key, a touch panel, or the like, but the configuration is not particularly limited.
[0086] The setting section 121 is operated, for example, at a time of emergently stopping winding of the spun yarn 33 in the spinning unit 7 or at a time of performing maintenance of each device of the spinning unit 7. The setting section 121 of the present embodiment is provided so that the suction device 29 in each spinning unit 7 can be individually operated. However, the suction devices 29 in a predetermined number
(for example, two or four) or all the spinning units 7 may be collectively operated. The setting section 121 may be provided on an individual unit panel corresponding to each spinning unit 7, instead of the motor box 5. Note that the setting section 121 may be omitted.
[0087] The winding device 31 winds the spun yarn 33 having passed the yarn accumulating device 25, to form

the package 93. The winding device 31 is arranged downstream of the yarn accumulating device 25. [0088] The winding device 31 includes a cradle arm 81, a winding drum 83, and a traverse guide 85. [0089] The cradle arm 81 is supported around a supporting shaft 87 in a swingable manner, and can rotatably support a bobbin 91 (accordingly, the package 93) around which the spun yarn 33 is to be wound. The winding drum 83 rotates while being in contact with an outer peripheral surface of the bobbin 91 or the package 93, to rotationally drive the package 93 in a winding direction. The winding device 31 drives the winding drum 83 by an electric motor (not illustrated) while reciprocating the traverse guide 85 by driving means (not illustrated). Accordingly, the winding device 31 winds the spun yarn 33 into the package 93 while traversing the spun yarn 33.
[0090] In the present embodiment, a waxing device 65 and a yarn travelling sensor 67 are provided between the suction device 29 and the winding device 31. The spun yarn 33 having passed the yarn accumulating device 25 passes the waxing device 65 before being wound into the package 93 by the winding device 31, and passes near the yarn travelling sensor 67.

[0091] The waxing device 65 can hold wax to be applied to the spun yarn 33. The waxing device 65 can apply wax on the travelling spun yarn 33 between the yarn accumulating device 25 and the winding device 31.
[0092] The yarn travelling sensor 67 is arranged near the waxing device 65 on the downstream side. The yarn travelling sensor 67 can detect whether or not the spun yarn 33 is travelling, at a predetermined position of the yarn path. In other words, the yarn travelling sensor 67 can detect the presence or absence of the spun yarn 33. The yarn travelling sensor 67 transmits a detection signal to the unit control section 19.
[0093] As illustrated in FIG. 1, the spinning machine 1 includes a rail 101. The rail 101 is arranged to extend along a direction in which the plurality of spinning units 7 are aligned. The yarn joining cart 9 is capable of travelling on the rail 101. Accordingly, the yarn joining cart 9 can move relative to the plurality of spinning units 7.
[0094] The yarn joining cart 9 travels to a service position corresponding to the spinning unit 7 in which the spun yarn 33 is disconnected, and performs the yarn joining process in the spinning unit 7. The yarn joining cart 9 performs the yarn joining process in cooperation

with the suction device 29 and the like included in the spinning unit 7, or using a device (the suction mouth 109 and the like to be described later) included in the yarn joining cart 9.
[0095] The yarn joining cart 9 includes travelling wheels 103, the yarn joining device 105, the suction pipe 107, and the suction mouth 109. Further, the yarn joining cart 9 further includes a cart control section 111 (an example of a control device) illustrated in FIG. 2 and the like.
[0096] The travelling wheels 103 are configured to be rotationally driven by driving means (not illustrated). When the travelling wheels 103 are driven, the yarn joining cart 9 can travel with respect to each of the plurality of spinning units 7.
[0097] The suction pipe 107 is a member having a pipe-shaped portion. An opening is formed at a distal end of the suction pipe 107. The suction pipe 107 is connected to a negative pressure source such as the blower 11. Therefore, a suction airflow can be generated at the distal end of the suction pipe 107. The suction pipe 107 is swingably supported. When the suction pipe 107 is swung, the distal end thereof can be moved toward or away from the spinning device 23. When the spun yarn

33 is disconnected, the suction pipe 107 can suction and catch the spun yarn 33 on the spinning device 23 side.
[0098] The suction mouth 109 is a member having a pipe-shaped portion. An opening is formed at a distal end 117 of the suction mouth 109. The suction mouth 109 is connected to a negative pressure source such as the blower 11. Therefore, a suction airflow can be generated at the distal end 117 of the suction mouth 109. The suction mouth 109 is swingably supported. When the suction mouth 109 is swung, the distal end 117 can be moved to a position close to the winding device 31 (an approach position) or a position that is retreated (a retreated position). When the spun yarn 33 is disconnected, the suction mouth 109 can suction, from the distal end 117, the spun yarn 33 on the winding device 31 side (the package 93 side) to catch the spun yarn 33 at the approach position. The retreated position is a position spaced apart more from the winding device than the approach position. Further, the retreated position is a position on an upstream side of the yarn joining device in the yarn travelling path.
[0099] When the suction pipe 107 is swung toward one side, the distal end thereof is moved in a direction of approaching the spinning device 23, and catches a

yarn end of the spun yarn 33 while being close to the spinning device 23. The suction pipe 107 is then swung to another side. As a result, the distal end of the suction pipe 107 moves in a direction away from the spinning device 23. As indicated by solid lines in FIGS. 4 and 5, in a state in which the suction pipe 107 is retreated from the spinning device 23, the spun yarn 33 between the caught yarn end and the spinning device 23 includes a portion located downstream of the yarn joining device 105.
[0100] When the suction mouth 109 is swung toward one side, the distal end 117 is moved in a direction of approaching the winding device 31, and catches the spun yarn 33 at a position close to the winding device 31. The suction mouth 109 is then swung to another side. As a result, the distal end 117 of the suction mouth 109 moves in a direction away from the winding device 31. As indicated by a solid line in FIG. 5, at a position where the suction mouth 109 is retreated from the winding device 31, the spun yarn 33 between the caught yarn end and the package 93 includes a portion located upstream of the yarn joining device 105.
[0101] After the spun yarn 33 is disconnected, the yarn joining device 105 performs yarn joining between

the spun yarn 33 on the spinning device 23 side caught by the suction pipe 107 and the spun yarn 33 on the package 93 side caught by the suction device 29 or the suction mouth 109. In the present embodiment, the yarn joining device 105 is a splicer device that twists yarn ends with each other by means of a whirling airflow. The yarn joining device 105 is not limited to the splicer device, but a mechanical knotter or the like can be employed, for example.
[0102] In the present embodiment, the yarn end of the spun yarn 33 on the package 93 side is suctioned by the suction device 29 or the suction mouth 109. However, the yarn end of the spun yarn 33 alone is not necessarily suctioned. As a result of suctioning of the spun yarn 33 closer to the package 93 than the yarn end in the spun yarn 33 on the package 93 side, the yarn end of the spun yarn 33 may be suctioned. Therefore, a predetermined portion of the spun yarn 33 on the package 93 side caught by the suction device 29 or the suction mouth 109 is set as the catching portion.
[0103] In a state in which the yarn joining cart 9 travels and stops at the spinning unit 7 in which the spun yarn 33 is disconnected, the yarn joining device 105 is located downstream of the suction device 29.

Further, in a state in which the distal end 117 of the suction mouth 109 is retreated with respect to the winding device 31 (a state indicated by the solid line in FIG. 5), the yarn joining device 105 is located downstream of the distal end 117 of the suction mouth 109.
[0104] The cart control section 111 is configured as a known computer including a CPU, a ROM, a RAM, and the like that are not illustrated. The cart control section 111 controls the yarn joining process performed by the yarn joining cart 9 by controlling an operation of each section included in the yarn joining cart 9. [0105] The yarn joining cart 9 is usually on standby at an appropriate position on the rail 101. When the spun yarn 33 is disconnected in any one of the spinning units 7, the yarn joining cart 9 is moved to the spinning unit 7 in which the spun yarn 33 is disconnected. When being in the standby state, the yarn joining cart 9 does not generate the suction airflow in each of the suction pipe 107 and the suction mouth 109. Therefore, an amount of air consumed for each of the suction pipe 107 and the suction mouth 109 can be saved.
[0106] Next, selective use of the suction device 29 and the suction mouth 109 when the yarn joining process

is performed in the spinning unit 7 will be described.
[0107] The yarn joining process is performed after
the spun yarn 33 is disconnected between the yarn
supplying device (the spinning device 23 and/or the draft
device 21) and the package 93, near a timing when
interrupted spinning is started by the spinning device
23.
[0108] In the present embodiment, there are two
types of operations of the yarn joining process, and the
operations are alternatively selected.
[0109] In a first operation, as illustrated in FIG.
4, the spun yarn 33 on the winding device 31 side is
caught by the suction device 29, and the yarn joining is
performed in a state in which the spun yarn 33 can be
taken in by the yarn joining device 105. Hereinafter,
this operation may be referred to as "fixed catching
yarn joining".
[0110] In a second operation, as illustrated in FIG.
5, the spun yarn 33 on the winding device 31 side is
caught by the suction mouth 109, the suction mouth 109
guides the spun yarn 33 to enable the yarn joining device
105 to take in the spun yarn 33, and yarn joining is
performed. Hereinafter, this operation may be referred
to as "moving catching yarn joining".

[0111] In any operation, the spun yarn 33 on the spinning device 23 side is caught by the suction pipe 107, and the spun yarn 33 is guided by the suction pipe 107 to enable the yarn joining device 105 to take in the spun yarn 33.
[0112] The unit control section 19 determines which one of the fixed catching yarn joining and the moving catching yarn joining is to be performed, in accordance with a spinning interruption factor, before interrupting the spinning. When time has elapsed since previous spinning has been interrupted, and the like, the unit control section 19 determines which one of the fixed catching yarn joining and the moving catching yarn joining is to be performed in accordance with a spinning interruption factor or a state at a start of spinning when spinning is started. The determination to perform the fixed catching yarn joining can be rephrased as determination to use the suction device 29. The determination to perform the moving catching yarn joining can be rephrased as determination to use the suction mouth 109.
[0113] When spinning is interrupted, there are various factors, and examples thereof include: [A] the spun yarn 33 is cut for removal of a yarn defect,

for example, on the basis of a detection result of the yarn monitoring device 63 and/or the spinning sensor 69;
[B] high tension is applied to the spun yarn 33 during winding of the spun yarn 33, and the spun yarn 33 is broken (a tension breakage);
[C] there is a failure in the yarn joining process by the yarn joining device 105;
[D] the spinning unit 7 stops spinning due to an
occurrence of a power failure or an instantaneous power
failure;
[E] a sliver remaining amount calculated by the unit
control section 19 is less than a predetermined amount;
[F] the sliver sensor 99 detects absence of the sliver;
[G] the yarn monitoring device 63 detects absence of the
spun yarn 33; and
[H] the yarn travelling sensor 67 detects absence of the
spun yarn 33.
[0114] Examples of a state at a start of spinning
include:
[I] a state in which a yarn end of the spun yarn 33 on
the package 93 side is wound into the package 93; or
[J] a state in which spinning of the plurality of
spinning units 7 is started all at once.
[0115] The state [I] can be detected by the unit

control section 19 by using the yarn travelling sensor 67, and the like. The state [J] can be detected by the unit control section 19 on the basis of the fact that the plurality of spinning units 7 interrupt spinning due to a power failure or an instantaneous power failure, or that an operation is performed on an operating device such as a simultaneous start button provided for the plurality of spinning units 7.
[0116] When determining that interruption of yarn supply by the spinning device 23 is necessary, specifically, when the spinning interruption factor is [A] described above, the unit control section 19 determines to perform the fixed catching yarn joining. [0117] Further, the spinning interruption factors include detection of absence of a sliver and/or absence of a yarn, as shown in [E], [F], and [G]. When spinning is interrupted due to such a factor, the spun yarn 33 is disconnected on the upstream side of the yarn accumulating device 25 (the yarn accumulating roller 53) In this case, the unit control section 19 determines whether to perform which one of the fixed catching yarn joining and the moving catching yarn joining in consideration of whether or not catching of the spun yarn 33 on the package 93 side by the suction device 29

is in time.
[0118] This determination uses a result of detecting whether or not a yarn accumulating amount of the yarn accumulating roller 53 is equal to or greater than a predetermined amount by the yarn accumulated amount detection sensor 61.
[0119] Details will be described below. In the spinning machine 1 of the present embodiment, when the spun yarn 33 is disconnected, winding of the spun yarn 33 by the winding device 31 is immediately stopped. If the winding of the winding device 31 continues even after the disconnection occurs, a yarn end of the spun yarn 33 is passed through the yarn accumulating roller 53 and then wound into the package 93 rotating in the winding device 31.
[0120] Even if stop control of the winding of the winding device 31 is performed immediately after an occurrence of disconnection of the spun yarn 33, the spun yarn 33 of a certain length is wound into the package 93 until rotation of the package 93 rotating at a high speed stops completely.
[0121] The case where the yarn accumulated amount of the yarn accumulating roller 53 is equal to or greater than the predetermined amount is a state in which

catching of the spun yarn 33 by the suction device 29 is in time even if the spun yarn 33 is drawn out from the yarn accumulating roller 53 until the package 93 actually stops after the stop control. The state in which catching of the spun yarn 33 by the suction device 29 is in time is, in other words, a state in which the spun yarn 33 is even slightly accumulated on the yarn accumulating roller 53. In this case, the unit control section 19 determines to perform the fixed catching yarn joining.
[0122] When the yarn accumulated amount of the yarn accumulating roller 53 is less than the predetermined amount, catching of the spun yarn 33 by the suction device 29 is not in time, and a yarn end is wound into the package 93 by rotation until the package 93 actually stops. In this case, the unit control section 19 determines to perform the moving catching yarn joining. [0123] As exemplified in [A] to [H] described above, there are various factors that interrupt the spinning, but an occurrence frequency of the factor [A] is the highest. In the case of [A], the unit control section 19 determines to perform the fixed catching yarn joining. Therefore, in the present embodiment, a frequency of use of the suction mouth 109 tends to be low, and a frequency

of use of the suction device 29 tends to be high.
[0124] Therefore, in the spinning machine 1 of the present embodiment, the suction device 29 is provided to the spinning unit 7, and the suction mouth 109 is provided to the yarn joining cart 9. That is, the suction device 29 is provided for each spinning unit 7, and the suction mouth 109 is provided to be shared by the plurality of spinning units 7. As a result, the efficiency of the entire spinning machine 1 is favorable.
[0125] Further, when the spinning interruption factor is [B], [C], [D], or [H] described above, or when the state at a start of the spinning is [I] or [J], the unit control section 19 determines to perform the moving catching yarn joining.
[0126] The spun yarn 33 on the package 93 side may not be caught by the suction device 29 even when the fixed catching yarn joining is attempted. The failure in catching the spun yarn 33 can be detected on the basis of the yarn catching detection sensor 79. When catching of the spun yarn 33 by the suction device 29 has failed, the unit control section 19 determines to switch to the moving catching yarn joining. The spun yarn 33 on the package 93 side is further wound by the winding device 31 before the suction mouth 109 is used. Thus, since a

yarn end for which catching by the suction device 29 has failed moves to the vicinity of the outer peripheral surface of the package 93 or to the outer peripheral surface, the spun yarn 33 on the package 93 side can be reliably caught by the suction mouth 109. [0127] When spinning of the spinning unit 7 is interrupted due to the factor [D] , the unit control section 19 rotates the package 93 with the winding device 31 to form straight winding in the package 93. The straight winding is a portion where the spun yarn 33 is continuously wound at a predetermined position or a predetermined reduced width in a winding width direction of the package 93. The straight winding is formed on the surface of the package 93 by limiting a traverse range of the traverse guide 85 to a predetermined position range or a predetermined reduced width range in the winding width direction, for a predetermined period before the winding of the package 93 is interrupted. Then, the unit control section 19 controls to perform the moving catching yarn joining at a time of power restoration.
[0128] Note that, when it is determined to perform the moving catching yarn joining, without limiting to a case of interruption of spinning of the spinning unit 7

due to the factor [D], the straight winding may be formed by limiting the traverse range of the traverse guide 85 to a predetermined position range or a predetermined reduced width range in the winding width direction for a predetermined period.
[0129] Further, the unit control section 19 may be configured to attempt the fixed catching yarn joining before the moving catching yarn joining, when spinning is stopped due to the factor [D]. That is, when spinning is interrupted due to an occurrence of a power failure or an instantaneous power failure, the unit control section 19 stops the spinning unit 7 in a state in which the spun yarn 33 is connected between the yarn accumulating roller 53 of the yarn accumulating device 25 and the package 93 of the winding device 31. After power restoration, the unit control section 19 rotates the package 93 with the winding device 31 to unwind the spun yarn 33 remaining on the yarn accumulating roller 53 of the yarn accumulating device 25, and causes the suction device 29 to catch the spun yarn 33 on the package 93 side. Thereafter, the yarn joining by the yarn joining device 105 is performed.
[0130] Next, a description is given to an operation of each section when the spun yarn 33 is disconnected

and spinning is interrupted in the state of FIG. 2, and the yarn joining is performed by the yarn joining device 105. Hereinafter, as an example, a description is given to a case where the spinning interruption factor is [A], and specifically, the spun yarn 33 is cut on the basis of a detection result of the yarn monitoring device 63.
[0131] First, the unit control section 19 stops yarn supply by the yarn supplying device (the spinning device 23 and/or the draft device 21) on the basis of a yarn defect detection signal inputted from the yarn monitoring device 63. At this time, the unit control section 19 also stops the winding device 31. By stopping the yarn supply by the yarn supplying device, the spun yarn 33 is cut. Thus, as illustrated in FIG. 3, the spun yarn 33 is disconnected.
[0132] Further, the unit control section 19 transmits a yarn joining request signal to the cart control section 111 at an appropriate timing after the yarn monitoring device 63 detects a yarn defect. Upon receiving the yarn joining request signal, the cart control section 111 causes the yarn joining cart 9 to travel to the target spinning unit 7 in which the spun yarn 33 is disconnected, and then stops the yarn joining cart 9. FIG. 3 illustrates a case where the yarn joining

cart 9 arrives at the spinning unit 7 immediately after an occurrence of disconnection, but the arrival timing may be later than the timing in FIG. 3.
[0133] At an appropriate timing after the yarn monitoring device 63 detects a yarn defect, or at an appropriate timing after the spun yarn 33 is disconnected, the unit control section 19 determines which one of the suction device 29 and the suction mouth 109 is to be used to perform the yarn joining. In the present example, since spinning is interrupted due to the factor [A], the unit control section 19 determines to perform the fixed catching yarn joining. In other words, the unit control section 19 determines to use the suction device 29.
[0134] After the spun yarn 33 is disconnected, the winding device 31 stops rotation in a short time. Therefore, in a state in which the winding device 31 is completely stopped, the spun yarn 33 is connected between the yarn accumulating device 25 and the package 93. Thereafter, the unit control section 19 drives the winding device 31 again. As a result, the spun yarn 33 on the package 93 side is wound into the package 93 by the winding device 31.
[0135] The spun yarn 33 remaining on the yarn accumulating roller 53 of the yarn accumulating device

25 is drawn out by driving of the winding device 31, and the accumulated amount of the spun yarn 33 in the yarn accumulating roller 53 decreases. The unit control section 19 monitors a detection signal of the yarn accumulated amount detection sensor 61.
[0136] The unit control section 19 opens the closed shutter 77 at a timing slightly before the spun yarn 33 is detached from the yarn accumulating device 25, and starts suctioning by the suction device 29. This timing can be, for example, a timing when winding is continued for a predetermined time after the yarn accumulated amount detection sensor 61 detects that the accumulated amount of the spun yarn 33 becomes equal to or less than the predetermined amount.
[0137] Thereafter, in a process in which the spun yarn 33 on the package 93 side is wound into the package 93, the unit control section 19 again stops winding by the winding device 31 at a timing when a yarn end of the spun yarn 33 is located in a region where the yarn end can be caught by the suction device 29. The stop timing of the winding by the winding device 31 may be, for example, substantially the same as a timing when a yarn end of the spun yarn 33 remaining on the yarn accumulating roller 53 is detached from the yarn

accumulating roller 53 and exits the guide 59. Note that, instead of stopping the winding, the unit control section 19 may decelerate the winding so that a yarn end of the spun yarn 33 travels in a state of being able to be caught by the suction device 29. As a result, the spun yarn 33 can be suctioned and caught from the suction port 73 by the suction device 29.
[0138] At this time, the unit control section 19 determines whether or not the catching by the suction device 29 has succeeded, on the basis of a detection result from the yarn catching detection sensor 79. A case where it is determined that the catching by the suction device 29 has failed will be described later. [0139] When determining that the catching by the suction device 29 has succeeded, the unit control section 19 determines whether or not the yarn joining cart 9 has arrived at the spinning unit 7, and waits until the yarn joining cart 9 arrives when the yarn joining cart 9 has not arrived yet.
[0140] The suction port 73 of the suction pipe 71 is located upstream of the yarn joining device 105 while the yarn joining cart 9 is stopped at a service position corresponding to the spinning unit 7. Therefore, when the yarn joining cart 9 arrives, the spun yarn 33 on the

package 93 side held by the suction device 29 faces the yarn joining device 105 of the yarn joining cart 9. [0141] After stopping the yarn joining cart 9, the cart control section 111 controls the yarn joining cart 9 to move the suction pipe 107 to a position where the spun yarn 33 on the spinning device 23 side can be caught, as indicated by a chain line in FIG. 4. At substantially the same time, the unit control section 19 restarts supply of the spun yarn 33 from the yarn supplying device. The cart control section 111 guides the spun yarn 33 on the spinning device 23 side caught by the suction pipe 107 to the yarn joining device 105 on a lower side as indicated by a solid line in FIG. 4.
[0142] In this state, the unit control section 19 operates the yarn joining device 105 to perform yarn joining between the spun yarn 33 on the winding device 31 side suctioned by the suction device 29 and the spun yarn 33 on the spinning device 23 side. In the yarn joining, an excess spun yarn 33 is cut and suctioned into the suction device 29 or the suction pipe 107 to be discarded. The spun yarn 33 is continuously supplied from the yarn supplying device during the yarn joining, and the spun yarn 33 is accumulated by the yarn accumulating device 25.

[0143] Almost at the same time as completion of the yarn joining, driving of the winding device 31 is started, and winding of the package 93 by the winding device 31 is restarted. The shutter 77 is closed at an appropriate timing after completion of the yarn joining operation. Thus, the spinning unit 7 returns to a normal state of FIG. 2.
[0144] Next, a description will be made on a case where spinning is interrupted due to the factor [B], for example, and the unit control section 19 determines to perform the moving catching yarn joining. [0145] When determining to perform the moving catching yarn joining when the spun yarn 33 is disconnected, the unit control section 19 controls rotation of the winding device 31 so that a yarn end of the spun yarn 33 on the package 93 side is wound into the package 93. Since the yarn end of the spun yarn 33 on the package 93 side does not need to be caught by the suction device 29, the determination related to the yarn accumulated amount described above is not performed. [0146] After the spun yarn 33 is disconnected, a yarn end of the spun yarn 33 on the package 93 side passes through the vicinity of the suction port 73 of the suction device 29, while the spun yarn 33 on the

package 93 side is being wound by the winding device 31. In the present embodiment, since the shutter 77 of the suction device 29 is closed, the yarn end of the spun yarn 33 on the package 93 side is not suctioned into the suction port 73 of the suction device 29. When the shutter 77 is omitted in the suction device 29, the yarn end of the spun yarn 33 on the package 93 side may be suctioned into the suction port 73. However, even in this case, the winding of the package 93 in the winding device 31 is continued, and as a result, the yarn end is forcibly drawn out from the suction port 73.
[0147] Thereafter, the unit control section 19 determines whether or not the yarn joining cart 9 has arrived at the spinning unit 7, and waits until the yarn joining cart 9 arrives when the yarn joining cart 9 has not arrived yet.
[0148] When arriving at the service position with respect to the spinning unit 7, the yarn joining cart 9 brings the suction mouth 109 close to the winding device 31. In this state, the package 93 is rotated in a direction opposite to the winding direction by appropriate driving means. This allows the suction mouth 109 to catch the spun yarn 33 on the package 93 side. The suction mouth 109 is then retreated from the

winding device 31. As a result, the spun yarn 33 on the package 93 side is guided to the yarn joining device 105. Other operations of the yarn joining cart 9 are similar to the fixed catching yarn joining described above.
[0149] Next, a description is given to a case where it is determined that catching of the spun yarn 33 by the suction device 29 has failed although the fixed catching yarn joining is performed after spinning is interrupted due to the factor [A], for example.
[0150] When determining that catching of the spun yarn 33 by the suction device 29 has failed on the basis of a detection result of the yarn catching detection sensor 79, the unit control section 19 determines to stop the fixed catching yarn joining and perform the moving catching yarn joining. The unit control section 19 immediately drives the winding device 31 again to rotate the package 93 in the winding direction. Accordingly, the yarn end of the spun yarn 33 located near the suction device 29 can be wound into the package 93. As a result, when the yarn joining cart 9 having arrived at the spinning unit 7 operates the suction mouth 109, the yarn end of the spun yarn 33 on the package 93 side can be easily suctioned and caught.
[0151] Note that, when catching of the spun yarn 33

by the suction device 29 has failed, a yarn end of the spun yarn 33 is to be wound into the package 93, and thus a way of subsequent processing can also be determined as a state of [I].
[0152] Next, a description is given to an example in which the unit control section 19 determines which one of the fixed catching yarn joining and the moving catching yarn joining is to be performed in accordance with a yarn type.
[0153] The yarn type is at least one of a raw material of the spun yarn 33 (a material of the sliver 35) , a yarn count of the spun yarn 33, or presence or absence of a core yarn contained in the spun yarn 33.
[0154] For example, when the spinning machine 1 is set to produce the spun yarn 33 having a yarn count lower than a predetermined yarn count by an operation of the operating section 17, the spun yarn 33 on the package 93 side may be caught by always using the suction mouth 109. That is, the spinning machine 1 may be configured to prohibit the use of the suction device 29 when producing the spun yarn 33 of a low count. This description is an example. For example, conversely, when the spinning machine 1 is set to produce the spun yarn 33 having a yarn count lower than a predetermined yarn count by an

operation of the operating section 17, the spun yarn 33 on the package 93 side may be caught by always using the suction device 29. That is, the spinning machine 1 may be configured to prohibit the use of the suction mouth 109 when producing the spun yarn 33 of a low count.
[0155] For example, when the spinning machine 1 is set to produce the spun yarn 33 containing a core yarn by an operation of the operating section 17, the spun yarn 33 on the package 93 side may be caught by always using the suction mouth 109. That is, the spinning machine 1 may be configured to prohibit the use of the suction device 29 when producing the spun yarn 33 containing the core yarn.
[0156] As in the present embodiment, the catching device that guides the spun yarn 33 on the package 93 side to the yarn joining device 105 is changed depending on which one of the suction device 29 and the suction mouth 109 is to be used. That is, when the spun yarn 33 is caught by the suction device 29, the yarn joining device 105 joins the spun yarn 33 on the package 93 side caught by the suction device 29 and the spun yarn 33 on the spinning device 23 side caught by the suction pipe 107. Further, when the spun yarn 33 is caught by the suction mouth 109, the yarn joining device 105 joins the

spun yarn 33 on the package 93 side caught by the suction mouth 109 and the spun yarn 33 on the spinning device 23 side caught by the suction pipe 107.
[0157] As described above, the spinning machine 1 of the present embodiment includes the spinning device 23, the winding device 31, the yarn accumulating device 25, the suction device 29, and the suction mouth 109. The spinning device 23 can produce the spun yarn 33 by spinning the fiber bundle 37 and supply the spun yarn 33. The winding device 31 winds the spun yarn 33 supplied by the spinning device 23, to form the package 93. The yarn accumulating device 25 is arranged on the yarn travelling path formed between the spinning device 23 and the winding device 31. The suction device 29 can catch the spun yarn 33 on the package 93 side when the spun yarn 33 is disconnected between the spinning device 23 and the winding device 31, and is provided with respect to the yarn travelling path. The suction mouth 109 can catch the spun yarn 33 on the package 93 side, and is provided to be movable between a position close to and a position retreated from the winding device 31. Which one of the suction device 29 and the suction mouth 109 is to be used is changed according to a factor of the spinning machine 1 interrupting spinning by the

spinning device 23, a state at a start of spinning by the spinning device 23, or a yarn type of the spun yarn 33.
[0158] Thus, when a yarn is disconnected, the suction device 29 and the suction mouth 109 can be flexibly and selectively used. Therefore, the spun yarn 33 on the package 93 side can be efficiently prepared to start winding of the yarn by using the suction device 29 or the suction mouth 109.
[0159] When using the suction device 29, an operation of once winding the spun yarn 33 on the package 93 side into the package 93 is unnecessary. Therefore, by using the suction device 29, time required for preparing the spun yarn 33 on the package 93 side can be shortened. Even if the suction device 29 is not able to catch the spun yarn 33, the spinning machine 1 can automatically catch the spun yarn 33 on the package 93 side by using the suction mouth 109. As a result, as the entire spinning machine 1, a success rate of catching of the spun yarn 33 on the package 93 side can be improved and the time required to start winding of the spun yarn 33 can be shortened.
[0160] It is preferable to include the control device that controls at least the spinning device, the

winding device, the fixed catching device, and the movable catching device.
[0161] This makes it possible to change which one of the fixed catching device and the movable catching device is to be used.
[0162] In the spinning machine 1 of the present embodiment, when the suction device 29 is used, the winding device 31 winds the spun yarn 33 on the package 93 side, and stops winding at a timing when the spun yarn 33 is located in a region where the spun yarn can be caught by the suction device 29 (alternatively, the unit control section 19 decelerates the winding so that a yarn end of the spun yarn 33 travels in a state of being able to be caught by the suction device 29 at a timing when the spun yarn 33 is located in a region where the spun yarn can be caught by the suction device 29).
[0163] This allows the spun yarn 33 on the package 93 side to be easily caught by the suction device 29.
[0164] In the spinning machine 1 of the present embodiment, when the suction device 29 fails catching the spun yarn 33 on the package 93 side after winding of the spun yarn 33 on the package 93 side is stopped (or decelerated), the winding device 31 winds the spun yarn 33 on the package 93 side, and the suction mouth 109

catches the spun yarn 33 on the package 93 side. [0165] This allows the spun yarn 33 on the package 93 side to be reliably caught.
[0166] In the spinning machine 1 of the present embodiment, when the suction mouth 109 is used, the winding device 31 winds the spun yarn 33 at least until a yarn end of the spun yarn 33 on the package 93 side is located downstream of the suction device 29 in the travelling direction (the yarn travelling direction). [0167] This allows the spun yarn 33 on the package 93 side to be easily caught by the suction mouth 109. Even when the shutter 77 is not provided in the suction device 29, it is also possible to avoid that the spun yarn 33 is unintentionally caught by the suction device 29 by winding the spun yarn 33 as described above. That is, by performing this control, the shutter 77 can be omitted.
[0168] In the spinning machine 1 of the present embodiment, the suction device 29 is used when spinning by the spinning device 23 is interrupted. [0169] This allows the suction device 29 to be effectively used.
[0170] The spinning machine 1 of the present embodiment includes the yarn monitoring device 63, the

sliver sensor 99, and the like as the detection device. The detection device detects a yarn breakage on an upstream side of the yarn accumulating device 25 in the travelling direction. When spinning by the spinning device 23 is interrupted due to detection of the yarn breakage by the detection device, determination is made as to whether or not the spun yarn 33 on the package 93 side can be caught by the suction device 29. If a result of the determination is positive, the suction device 29 is used. If a result of the determination is negative, the suction mouth 109 is used.
[0171] This can increase a frequency of use of the suction device 29. Therefore, the time required for the preparation for the start of the winding of the spun yarn 33 can be further shortened.
[0172] When the spinning machine 1 of the present embodiment interrupts spinning due to disconnection of the spun yarn 33 (for example, yarn joining by the yarn joining device 105 fails) before interruption of spinning by the spinning device 23, the suction mouth 109 is used when spinning is started thereafter. [0173] This allows the spun yarn 33 on the package 93 side to be reliably caught. Further, since the use of the suction mouth 109 has been determined, the

spinning machine 1 can efficiently prepare the spun yarn 33 on the package 93 side.
[0174] The spinning machine 1 of the present embodiment includes the setting section 121. The setting section 121 prohibits catching of the spun yarn 33 on the package 93 side by the suction device 29.
[0175] This enables appropriate response to a situation in which catching of the spun yarn 33 by the suction device 29 is not preferable.
[0176] The spinning machine 1 of the present embodiment includes the plurality of spinning units 7 and the yarn joining cart 9. The yarn joining cart 9 is provided so as to be movable with respect to the plurality of spinning units 7. Each spinning unit 7 includes the spinning device 23, the yarn accumulating device 25, and the winding device 31. The suction device 29 is provided in each spinning unit 7. The suction mouth 109 is provided in the yarn joining cart 9.
[0177] Thus, when the use of the suction device 29 is determined, the yarn joining cart 9 does not need to be moved for the predetermined spinning unit 7. The suction device 29 is used more frequently than the suction mouth 109. Therefore, the spun yarn 33 on the package 93 side can be efficiently caught.

[0178] The spinning machine 1 of the present embodiment includes the yarn monitoring device 63 or the spinning sensor 69 as the yarn detection device. The yarn detection device detects a state of the spun yarn 33 on an upstream side of the yarn accumulating device 25 in the travelling direction. When spinning is interrupted on the basis of a detection result of the yarn detection device, the suction device 29 is used when spinning is started thereafter.
[0179] This allows the suction device 29 to be effectively used.
[0180] In the spinning machine 1 of the present embodiment, when spinning by the spinning device 23 is interrupted on the basis of a detection result of the yarn detection device, and the suction device 29 fails in catching the spun yarn 33 on the package 93 side, the suction mouth 109 is used. Further, when spinning is interrupted due to: an abnormality in a tension of the spun yarn 33 travelling through the yarn path; a failure in yarn joining by the yarn joining device 105 arranged downstream of the yarn accumulating device 25 in the travelling direction; or stopping by a power failure or an instantaneous power failure, the suction mouth 109 is used when spinning is started thereafter.

[0181] This allows the suction mouth 109 to be effectively used.
[0182] When spinning by the spinning device 23 is interrupted due to a power failure or an instantaneous power failure, the spinning machine 1 of the present embodiment stops in a state in which the spun yarn 33 is connected between the yarn accumulating device 25 and the package 93. When spinning by the spinning device 23 is started after power restoration, the spun yarn 33 on the package 93 side is wound by the winding device 31, the spun yarn 33 remaining on the yarn accumulating roller 53 of the yarn accumulating device 25 is unwound from the yarn accumulating roller 53, and the spun yarn 33 on the package 93 side is caught.
[0183] This allows the suction device 29 to be more effectively used.
[0184] In the spinning machine 1 of the present embodiment, when spinning by the spinning device 23 is interrupted due to a power failure or an instantaneous power failure, a winding width of the package 93 is narrowed. When spinning is started by the spinning device 23 after power restoration, the spun yarn 33 on the package 93 side is caught by the suction mouth 109. [0185] This allows the suction mouth 109 to be more

effectively used.
[0186] The spinning machine 1 of the present embodiment includes the yarn joining device 105. When the spun yarn 33 is disconnected between the spinning device 23 and the winding device 31, the yarn joining device 105 performs yarn joining between the spun yarn 33 on the spinning device 23 side and the spun yarn 33 on the package 93 side. The yarn joining device 105 joins the spun yarn 33 on the spinning device 23 side and the spun yarn 33 on the package 93 side in a state in which a yarn end of the spun yarn 33 on the package 93 side is caught by the suction device 29 or the suction mouth 109.
[0187] This allows the yarn joining by the yarn joining device 105 to be smoothly performed.
[0188] The spinning machine 1 of the present embodiment includes the yarn catching detection sensor 79. The yarn catching detection sensor 79 detects whether or not the spun yarn 33 on the package 93 side is successfully caught by the suction device 29.
[0189] This allows the use of the suction device 29 to be automatically switched to the use of the suction mouth 109 in accordance with a situation.
[0190] In the spinning machine 1 of the present

embodiment, the suction device 29 is configured to suction the spun yarn 33 on the package 93 side to catch the yarn. The suction device 29 includes the shutter 77 capable of changing the suction device 29 between a suction state and a suction stopped state. The shutter 77 brings the suction device 29 into the suction stopped state while the spun yarn 33 is wound in a continuous state of the spun yarn 33 between the spinning device 23 and the winding device 31.
[0191] As a result, since the suction can be stopped while the suction by the suction device 29 is unnecessary, energy saving in the spinning unit 7 can be achieved. [0192] The spinning machine 1 of the present embodiment includes the yarn monitoring device 63 or the spinning sensor 69 as the yarn detection device. This yarn detection device detects a state of the spun yarn 33 on an upstream side of the yarn accumulating device 25 in the travelling direction. When spinning by the spinning device 23 is interrupted on the basis of a detection result of the yarn detection device, the shutter 77 changes the suction device 29 from the suction stopped state to the suction state at a timing later than a timing of interruption of spinning and at a timing when the spun yarn 33 remains on the yarn accumulating

roller 53 of the yarn accumulating device 25.
[0193] This allows the spun yarn 33 on the package 93 side to be reliably caught by the suction device 29.
[0194] A spinning machine 1 of a second aspect of the present invention includes a plurality of spinning units 7, a yarn joining cart 9, and a yarn joining device 105. The yarn joining cart 9 is provided so as to be movable with respect to the plurality of spinning units 7. Each spinning unit 7 includes a spinning device 23, a winding device 31, and a yarn accumulating device 25. The spinning device 23 can produce a spun yarn 33 by spinning a fiber bundle 37 and supply the spun yarn 33. The winding device 31 winds the spun yarn 33 supplied by the spinning device 23, to form a package 93. The yarn accumulating device 25 is arranged on a yarn travelling path formed between the spinning device 23 and the winding device 31. When the spun yarn 33 is disconnected between the spinning device 23 and the winding device 31, the yarn joining device 105 performs yarn joining between the spun yarn 33 on the spinning device 23 side and the spun yarn 33 on the package 93 side. Each spinning unit 7 includes a suction device 29. The suction device 29 can catch the spun yarn 33 on the package 93 side, is provided between the yarn

accumulating device 25 and the winding device 31, and is arranged upstream of the yarn joining device 105 in a travelling direction. The yarn joining cart 9 includes a suction mouth 109. The suction mouth 109 is provided to be movable between the approach position that is a position close to the winding device 31 and the retreated position that is a position retreated. The suction mouth 109 catches the spun yarn 33 on the package 93 side at the approach position, and is movable from the approach position to the retreated position with the spun yarn 33 caught. The retreated position of the suction mouth 109 is a position farther from the winding device 31 than the yarn joining device 105. The yarn joining device 105 joins the spun yarn 33 on the spinning device 23 side and the spun yarn 33 on the package 93 side in a state in which the spun yarn 33 on the package 93 side is caught by the suction device 29 or the suction mouth 109.
[0195] Thus, when the spun yarn 33 is disconnected, the suction device 29 and the suction mouth 109 can be appropriately and selectively used for yarn joining. Therefore, a yarn joining operation can be appropriately performed using the suction device 29 or the suction mouth 109. As a result, as the entire spinning machine

1, a success rate of catching of the spun yarn 33 on the package 93 side can be improved and time required for preparation to start winding of the spun yarn 33 can be shortened.
[0196] The spinning machine 1 of the present embodiment can switch yarn joining using the suction device 29 and yarn joining using the suction mouth 109, when starting spinning after interrupting the spinning by the spinning device 23. When the suction device 29 is used after interruption of spinning by the spinning device 23, the winding device 31 winds the spun yarn 33 on the package 93 side such that the spun yarn 33 on the package 93 side is located in a region where the spun yarn 33 on the package 93 side can be caught by the suction device 29. When the suction mouth 109 is used, the yarn joining cart 9 is controlled such that the yarn joining cart 9 is arranged at a position corresponding to the spinning unit 7 in which the spun yarn 33 is disconnected. Note that the control of the yarn joining cart 9 includes control of causing the yarn joining cart 9 to maintain a service position when the yarn joining cart 9 is already located at the service position corresponding to the corresponding spinning unit 7. [0197] As a result, the spun yarn 33 on the package

93 side can be reliably caught with use of the suction device 29 or the suction mouth 109.
[0198] The preferred embodiment of the present invention has been described above, but the above-described configuration may be modified as below. The following alternative embodiments can be combined as appropriate.
[0199] In the embodiment described above, the fixed catching yarn joining is performed at a time of interruption of spinning due to cutting of the spun yarn 33 based on detection of a yarn defect by the yarn monitoring device 63. However, for example, the unit control section 19 may select whether to perform which one of the fixed catching yarn joining and the moving catching yarn joining on the basis of a type of the yarn defect detected by the yarn monitoring device 63.
[0200] In the embodiment described above, the yarn joining device 105 used for yarn joining is provided in one yarn joining cart 9 shared by the plurality of spinning units 7, but may be provided in each spinning unit 7. In this case, the yarn joining device 105 is provided between the yarn accumulating device 25 and the winding device 31 in the travelling direction of the spun yarn 33. Similarly, the suction pipe 107 and the

suction mouth 109 may be provided in each spinning unit 7. Therefore, the yarn joining cart 9 can be omitted. [0201] In the embodiment described above, the yarn catching detection sensor 79 is provided outside the suction device 29 and immediately downstream, but may be provided inside the suction device 29 (inside the suction port 73).
[0202] In the embodiment described above, the yarn catching detection sensor 79 is provided in the spinning unit 7 including the suction device 29, but may be provided in the yarn joining cart 9.
[0203] In the embodiment described above, the yarn catching detection sensor 79 is provided, but whether or not catching of the spun yarn 33 by the suction device 29 has succeeded may be detected by detection signals of the yarn accumulated amount detection sensor 61 and the yarn travelling sensor 67, instead of the yarn catching detection sensor 79. That is, when the presence of the spun yarn 33 is detected by the yarn travelling sensor 67 at a timing when winding is continued for a predetermined time after the yarn accumulated amount detection sensor 61 detects that the accumulated amount of the spun yarn 33 becomes equal to or less than a predetermined amount, it can be determined that catching

of the spun yarn 33 by the suction device 29 has succeeded.
[0204] Any configuration and position of the shutter 77 may be adopted as long as generation and stop of the suction airflow can be switched. For example, the shutter 77 may be provided in the suction port 73.
[0205] When spinning is interrupted in each of the plurality of spinning units 7 and then each starts spinning, the moving catching yarn joining may be determined to be performed in all of the plurality of spinning units 7. In this case, in consideration of movement of the yarn joining cart 9 including the suction mouth 109, the suction device 29 may be artificially used instead of the suction mouth 109, in some spinning units 7. That is, an operator or the like may manually carry a yarn end of the spun yarn 33 on the package 93 side planned to be caught by the suction mouth 109 toward the suction device 29, to realize catching of the spun yarn 33 on the package 93 side. When the yarn catching detection sensor 79 detects the spun yarn 33 in the spinning unit 7 that waits for arrival of the yarn joining cart 9 for the moving catching yarn joining, the fixed catching yarn joining is performed instead of the moving catching yarn joining.

[0206] In the embodiment described above, the spun yarn 33 is drawn out from the spinning device 23 by the yarn accumulating device 25. The spinning unit 7 may be configured to draw out the spun yarn 33 from the spinning device 23 by a pair of delivery rollers, instead of the yarn accumulating device 25. In this case, at least one of the yarn accumulating device 25, a slack tube, or a mechanical compensator may be provided downstream of the pair of delivery rollers.
[0207] In the embodiment described above, the suction device 29 is provided upstream of the waxing device 65. However, the suction device 29 may be provided downstream of the waxing device 65.
[0208] In the embodiment described above, the use of the suction device 29 or the suction mouth 109 is determined on the basis of a factor of interruption of spinning or a state at a start of spinning. However, regardless of the factor, the use of the suction mouth 109 may be determined when the spun yarn 33 on the package 93 side is first caught by the suction device 29, and a failure in catching by the suction device 29 is detected by the yarn catching detection sensor 79.
[0209] In the embodiment described above, three control devices of the central control device 13, the

unit control section 19, and the cart control section 111 are provided. However, two of the three may be combined as appropriate, or the three may be used as one control device.
[0210] In the embodiment described above, each device is arranged such that the spun yarn 33 supplied from the upper side is wound on the lower side. However, each device may be arranged such that the spun yarn supplied at the lower side is wound at the upper side.
[0211] In view of the foregoing teaching, it is apparent that the present invention may take numerous modifications and variations. Therefore, it should be understood that the present invention may be performed by a method other than those described in the present specification within the range of the appended claims.

WE CLAIM
1. A spinning machine (1) comprising:
a spinning device (23) adapted to produce a yarn (33) by spinning a fiber bundle (37) and to supply the yarn (33);
a winding device (31) adapted to wind a yarn (33) supplied from the spinning device (23) to form a package (93) ;
a yarn accumulating device (25) provided on a yarn travelling path formed between the spinning device (23) and the winding device (31);
a fixed catching device (29) arranged with respect to the yarn travelling path and adapted to catch a catching portion that is a yarn (33) on the package (93) side when a yarn (33) is disconnected between the spinning device (23) and the winding device (31); and
a movable catching device (109) adapted to move between an approach position close to the winding device (31) and a retreated position spaced apart more from the winding device (31) than the approach position, the movable catching device (109) being adapted to catch the catching portion, wherein
which one of the fixed catching device (29) and the movable catching device (109) is to be used is

changed in accordance with a factor of interruption of spinning by the spinning device (23), a state at a start of spinning by the spinning device (23), or a yarn type of the yarn (33).
2. The spinning machine (1) as claimed in claim
1, comprising
a control device (13, 19, 111) adapted to control at least the spinning device (23), the winding device (31), the fixed catching device (29), and the movable catching device (109).
3. The spinning machine (1) as claimed in claim 1
or 2, wherein
when the fixed catching device (29) is used, the winding device (31) stops winding at a timing when the catching portion is located in a region where the fixed catching device (29) is able to catch the catching portion, or
the winding device (31) decelerates winding to allow the catching portion to travel in a state of being able to be caught by the fixed catching device (29), at a timing when the catching portion is located in a region where the fixed catching device (29) is able to catch

the catching portion.
4. The spinning machine (1) as claimed in claim
3, wherein
when the fixed catching device (29) fails in catching a yarn (33) on the package (93) side after stopping of winding of the yarn (33) on the package (93) side or deceleration of winding, the winding device (31) winds the yarn (33) on the package (93) side, and
the catching portion wound into the package (93) is caught with use of the movable catching device (109), based on a fact that a state at a start of spinning by the spinning device (23) is a state in which the catching portion is wound into the package (93).
5. The spinning machine (1) as claimed in any one
of claims 1 to 4, wherein
when the movable catching device (109) is used, the winding device (31) winds the yarn (33) at least until a timing when the catching portion is located downstream of the fixed catching device (29) in a yarn travelling direction.
6. The spinning machine (1) as claimed in any one

of claims 1 to 5, wherein
when spinning by the spinning device (23) is interrupted, the fixed catching device (29) is used.
7. The spinning machine (1) as claimed in any one
of claims 1 to 6, comprising
a detection device (63, 99) adapted to detect a yarn breakage on an upstream side of the yarn accumulating device (25) in a yarn travelling direction, wherein
as a factor of interruption of spinning by the spinning device (23), when spinning by the spinning device (23) is interrupted due to detection of the yarn breakage by the detection device (63, 99), determination is made as to whether the fixed catching device (29) is able to catch the catching portion,
the fixed catching device (29) is used when a result of the determination is positive, and
the movable catching device (109) is used when the result of the determination is negative.
8. The spinning machine (1) as claimed in any one
of claims 1 to 7, wherein
as a factor of interruption of spinning by the

spinning device (23), when spinning is interrupted due to an occurrence of disconnection of a yarn (33) before spinning by the spinning device (23) is interrupted, the movable catching device (109) is used when spinning is started thereafter.
9. The spinning machine (1) as claimed in any one
of claims 1 to 8, comprising
a setting section (121) adapted to perform setting to prevent catching of the catching portion by the fixed catching device (29).
10. The spinning machine (1) as claimed in any
one of claims 1 to 9, comprising:
a plurality of spinning units (7); and
a work cart (9) adapted to move with respect to the plurality of spinning units (7), wherein
each of the spinning units (7) includes the spinning device (23), the yarn accumulating device (25), and the winding device (31),
the fixed catching device (29) is provided in each of the spinning units (7), and
the movable catching device (109) is provided in the work cart (9).

11. The spinning machine (1) as claimed in any
one of claims 1 to 10, comprising
a detection device (63, 69) adapted to detect a state of a yarn (33) on an upstream side of the yarn accumulating device (25) in a yarn travelling direction, wherein
as a factor of interruption of spinning by the spinning device (23), when spinning by the spinning device (23) is interrupted based on a detection result of the detection device (63, 69), the fixed catching device (29) is used.
12. The spinning machine (1) as claimed in claim
11, wherein
as a state at a start of spinning by the spinning device (23), when spinning by the spinning device (23) is interrupted based on a detection result of the detection device (63, 69), and the fixed catching device (29) fails in catching a yarn (33) on the package (93) side, or
as a factor of interruption of spinning by the spinning device (23), when a yarn joining device arranged downstream of the yarn accumulating device (25) in a

yarn travelling direction fails in yarn joining, or spinning is stopped due to a power failure or an instantaneous power failure, the movable catching device (109) is used when spinning is started thereafter.
13. The spinning machine (1) as claimed in any
one of claims 1 to 12, wherein
as a state at a start of spinning by the spinning device (23), when spinning by the spinning device (23) is interrupted due to a power failure or an instantaneous power failure, and spinning is stopped in a state in which the yarn (33) is connected between the yarn accumulating device (25) and the package (93),
when spinning by the spinning device (23) is started after power restoration, a yarn (33) on the package (93) side is wound by the winding device (31), a yarn (33) remaining on a yarn accumulating roller (53) of the yarn accumulating device (25) is unwound from the yarn accumulating roller (53), and the catching portion is caught with use of the fixed catching device (29).
14. The spinning machine (1) as claimed in any
one of claims 1 to 13, wherein
as a factor of interruption of spinning by the

spinning device (23), when spinning by the spinning device (23) is interrupted due to a power failure or an instantaneous power failure,
a winding width of the package (93) is narrowed immediately after interruption, and the catching portion is caught with use of the movable catching device (109) when spinning by the spinning device (23) is started after power restoration.
15. The spinning machine (1) as claimed in any one of claims 1 to 14, comprising
a yarn joining device (105) adapted to perform yarn joining between a yarn (33) on the spinning device (23) side and a yarn (33) on the package (93) side when a yarn (33) is disconnected between the spinning device (23) and the winding device (31), wherein
a yarn (33) on the package (93) side is guided to the yarn joining device (105) by the movable catching device (109) moving to the retreated position with the catching portion caught,
the yarn joining device (105) performs yarn joining between a yarn (33) on the spinning device (23) side and a yarn (33) on the package (93) side in a state in which the yarn (33) on the package (93) side is caught by the

fixed catching device (29) or the movable catching device (109), and
the fixed catching device (29) or the movable catching device (109) having caught the catching portion after a yarn (33) is disconnected between the spinning device (23) and the winding device (31) is same as the fixed catching device (29) or the movable catching device (109) to guide a yarn (33) on the package (93) side to the yarn joining device (105).
16. The spinning machine (1) as claimed in any
one of claims 1 to 15, comprising
a yarn catching detection sensor (61, 67, 79) adapted to detect whether the catching portion is successfully caught by the fixed catching device (29).
17. The spinning machine (1) as claimed in any
one of claims 1 to 16, wherein
the fixed catching device (29) is configured to catch the catching portion by suctioning a yarn (33) on the package (93) side,
the fixed catching device (29) includes a changing section (77) adapted to change the fixed catching device (29) between a suction state and a suction stopped state,

and
the changing section (77) is adapted to bring the fixed catching device (29) into the suction stopped state while a yarn (33) is wound in a continuous state of the yarn (33) between the spinning device (23) and the winding device (31).
18. The spinning machine (1) as claimed in claim
17, comprising
a detection device (63, 69) adapted to detect a state of a yarn (33) on an upstream side of the yarn accumulating device (25) in a yarn travelling direction, wherein
as a factor of interruption of spinning by the spinning device (23), when spinning by the spinning device (23) is interrupted based on a detection result of the detection device (63, 69), the changing section changes the fixed catching device (29) from a suction stopped state to a suction state at a timing later than a timing of interruption of spinning and at a timing when a yarn (33) remains on the yarn accumulating roller (53) of the yarn accumulating device (25).
19. A spinning machine (1) comprising:

a plurality of spinning units (7);
a work cart (9) adapted to move with respect to the plurality of spinning units (7); and
a yarn joining device (105), wherein
each of the spinning units (7) includes
a spinning device (23) adapted to produce a yarn (33) by spinning a fiber bundle (37) and to supply the yarn (33),
a winding device (31) adapted to wind a yarn (33) supplied from the spinning device (23) to form a package (93), and
a yarn accumulating device (25) provided on a yarn travelling path formed between the spinning device (23) and the winding device (31),
when a yarn (33) is disconnected between the spinning device (23) and the winding device (31), the yarn joining device (105) performs yarn joining between a yarn (33) on the spinning device (23) side and a yarn (33) on the package (93) side,
each of the spinning units (7) includes
a fixed catching device (29) arranged between the yarn accumulating device (25) and the winding device (31), and arranged upstream of the yarn joining device (105) in a yarn travelling direction to catch a catching

portion that is a yarn (33) on the package (93) side,
the work cart (9) includes
a movable catching device (109) adapted to move between an approach position close to the winding device (31) and a retreated position spaced apart more from the winding device (31) than the approach position, the movable catching device (109) being adapted to catch the catching portion at the approach position and adapted to move from the approach position to the retreated position with the catching portion caught,
the retreated position is a position farther than the yarn joining device (105) with respect to the winding device (31), and
the yarn joining device (105) performs yarn joining between a yarn (33) on the spinning device (23) side and a yarn (33) on the package (93) side in a state in which the yarn (33) on the package (93) side is caught by the fixed catching device (29) or the movable catching device (109) .
20. The spinning machine (1) as claimed in claim 19, wherein
when spinning is started after interruption of spinning by the spinning device (23), yarn joining using

the fixed catching device (29) and yarn joining using the movable catching device (109) are switchable,
when the fixed catching device (29) is used, the winding device (31) winds a yarn (33) on the package (93) side to allow the catching portion to be located in a region where the fixed catching device (29) is able to catch the catching portion after interruption of spinning by the spinning device (23), and
when the movable catching device (109) is used, the work cart (9) is arranged at a position corresponding to each of the spinning units (7) in which a yarn (33) is disconnected.