TITLE
WAX APPLYING DEVICE AND YARN WINDING DEVICE
TECHNICAL FIELD
[0001] The present disclosure relates to a wax applying device and a
5 yarn winding device.
BACKGROUND
[0002] Conventionally, a wax applying device attached to a yarn
winding device and configured to apply wax to a traveling yarn has
been known. For example, German Unexamined Patent Publication
10 No. 102006018838 describes a wax applying device configured to
position a wax body in at least part of the traverse area when a yarn
wound by a winding unit of a yam winding device is traversed forming
a traverse area.
SUMMARY
15 [0003] In the above-described wax applying device, when the wax body
is replaced (which involves at least one of attachment and detachment
of the wax body, the same applies hereinafter), this replacement may
affect a yam path. This may make it difficult, for example, to replace
the wax body while the yam from a package is being connected.
20 [0004] In view of this, the present disclosure aims to provide a wax
applying device and a yam winding device in which replacement of a
wax body is prevented from affecting a yarn path.
[0005] A wax applying device according to one aspect of the present
disclosure is a wax applying device configured to apply wax to a
25 traveling yarn. The wax applying device includes: a casing including
an attachment part for attaching the casing to a yam winding device; a
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traverse guiding portion configured to guide the yam to be wound by a
winding unit of the yam winding device so that the yam is traversed
forming a traverse area; and a wax support portion configured to
support a wax body while the wax body is positioned in at least part of
5 the traverse area. The traverse guiding portion is provided to the
casing in a fixed manner, and the wax support portion is attached to the
casing with a moving mechanism that is configured to be movable in a
direction separating from the traverse area.
BRIEF DESCRIPTION OF THE DRAWINGS
10 [0006] FIG. 1 is a schematic front view illustrating an overall
configuration of an automatic winder according to a first embodiment.
[0007] FIG. 2 is a schematic side view illustrating a winder unit
according to the first embodiment.
[0008] FIG. 3 is a perspective view illustrating a wax applying device
15 according to the first embodiment during normal winding.
[0009] FIG. 4 is a plan view illustrating the wax applying device
according to the first embodiment during normal winding.
[0010] FIG. 5 is a diagram for explaining a traverse area of the wax
applying device according to the first embodiment.
20 [0011] FIG. 6 is a side view illustrating the wax applying device
according to the first embodiment during normal winding.
[0012] FIG. 7 is a perspective view illustrating the wax applying device
according to the first embodiment during replacement operation.
[0013] FIG. 8 is a plan view illustrating the wax applying device
25 according to the first embodiment during replacement operation.
[0014] FIG. 9 is a plan view illustrating the wax applying device
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according to the first embodiment m another state during normal
winding.
[0015] FIG. 10 is a perspective view illustrating a wax applying device
according to a second embodiment during normal winding.
5 [0016] FIG. 11 is a perspective view illustrating the wax applying
device according to the second embodiment during replacement
operation.
[0017] FIG. 12 is a perspective view illustrating a wax applying device
according to a third embodiment during normal winding.
10 [0018] FIG. 13 is a side view illustrating a wax applying device
according to a modification.
[0019] FIG. 14A is a perspective v1ew illustrating an upstream
regulating guide according to the modification.
[0020] FIG. 14B is a plan view illustrating the upstream regulating
15 guide according to the modification.
DETAILED DESCRIPTION
[0021] Embodiments ofthe present disclosure will now be described in
detail with reference to the attached drawings. In the description of the
drawings, like or equivalent elements are designated by like numerals,
20 and duplicate description is omitted. The terms "upstream" and
"downstream" mean upstream and downstream in a traveling direction
of a yam during spinning, respectively.
[0022] First Embodiment
As depicted in FIG. 1, the automatic winder 1 includes a
25 plurality of winder units (yam winding devices) 2 disposed in parallel, a
machine control device 3, a yarn supplying bobbin feeder 4, a doffer 5,
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and a blower box (not depicted).
[0023] The machine control device 3 is configured to be able to
communicate with the respective winder units 2. An operator of the
automatic winder 1 can manage the winder units 2 centrally by
5 appropriately operating the machine control device 3. The machine
control device 3 controls operation of the yam supplying bobbin feeder
4 and the doffer 5.
[0024] The yam supplying bobbin feeder 4 sets a yam supplying
bobbin 21 on a conveying tray 26 on a one-by-one basis. The yam
10 supplying bobbin feeder 4 feeds the yam supplying bobbin 21 set on the
conveying tray 26 to each of the winder units 2.
[0025] When a package 30 is fully wound in each winder unit 2 (in a
state in which a specified amount of yam 20 is wound), the doffer 5
travels to the position of the corresponding winder unit 2 to remove the
15 fully wound package 30. The doffer 5 sets an empty winding bobbin
22 on this winder unit 2 from which the package 30 is removed.
[0026] The following describes a configuration of each winder unit 2.
As depicted in FIG. 2, the winder unit 2 includes a yam supplying unit
6, a yam storage device 18, a package forming unit 8, and a wax
20 applying device 70. In the winder unit 2, a yam 20 on the
corresponding yam supplying bobbin 21 ofthe yam supplying unit 6 is
unwound, and this unwound yam 20 is temporarily stored in the yam
storage device 18 and is then wound around the winding bobbin 22 to
form a package 30.
25 [0027] The yam supplying unit 6 is configured to support the yam
supplying bobbin 21 set on the corresponding conveying tray 26 at a
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predetermined position so as to be able to unwind the yarn 20 from this
yam supplying bobbin 21. When all of the yam 20 is unwound from
the yarn supplying bobbin 21, the yarn supplying unit 6 discharges this
empty yam supplying bobbin 21, and receives a new yarn supplying
5 bobbin 21 supplied from the yarn supplying bobbin feeder 4.
[0028] The yam storage device 18 is disposed between the yam
supplying unit 6 and the package forming unit 8. The yarn storage
device 18 is provided in a position upstream of the wax applying device
70 in the traveling direction ofthe yarn 20. The yarn storage device 18
10 temporarily stores therein the yarn 20 unwound at the yarn supplying
unit 6. The yam storage device 18 supplies the stored yarn 20 to the
package forming unit 8. The yarn storage device 18 includes a yarn
storage roller 32 that can wind the yarn 20 and a roller drive motor 33
configured to rotationally drive the yarn storage roller 32. The roller
15 drive motor 33 rotates the yam storage roller 32 in a direction of
winding the yam 20 from the yam supplying unit 6. The roller drive
motor 33 can rotate the yarn storage roller 32 also in a direction
opposite to this winding direction.
[0029] The package forming unit 8 includes a cradle 23 configured so
20 that the winding bobbin 22 can be mounted thereon and a traverse drum
24 configured to drive the winding bobbin 22 while traversing the yarn
20. The package forming unit 8 constitutes a winding unit. The
cradle 23 rotatably supports the winding bobbin 22 (or the package 30).
The cradle 23 is configured to be able to bring the outer peripheral
25 surface of the package 30 supported by the cradle 23 into contact with
the outer peripheral surface of the traverse drum 24.
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[0030] The traverse drum 24 is rotationally driven by a drive source
(not depicted) such as an electric motor, and rotates while being in
contact with the outer peripheral surface ofthe winding bobbin 22 or the
package 30, thereby causing the winding bobbin 22 to rotate in a driven
5 manner. Accordingly, the yam 20 stored in the yam storage device 18
can be unwound and pulled out to be wound around the winding bobbin
22. On the outer peripheral surface of the traverse drum 24, a traverse
groove (not depicted) is formed. This traverse groove enables the yam
20 to be traversed at a predetermined width. With the above-described
10 configuration, the yarn 20 can be wound around the winding bobbin 22
while being traversed to form the package 30 having a predetermined
shape.
[0031] The wax applying device 70 is disposed between the yam
storage device 18 and the package forming unit 8. The wax applying
15 device 70 applies wax to the yarn 20 traveling from the yarn storage
device 18 toward the package forming unit 8. The specific
configuration of the wax applying device 70 will be described later.
[0032] The winder unit 2 includes various devices in a yam traveling
path from the yarn supplying unit 6 to the package forming unit 8 via
20 the yarn storage device 18. Specifically, on the yam path (yam
traveling path) of the yarn 20, in the order of from the upstream yam
supplying unit 6 side toward the downstream yam storage device 18
side, an unwinding assisting device 10, an upstream yarn blow
delivering unit 11, a second catcher 12, a splicing device 13, a first
25 catcher 14, a tension applying unit 15, a cutter 16, a yam monitor 17,
and a downstream yarn blow delivering unit 48 are disposed.
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[0033] The unwinding assisting device 10 brings a movable member 27
into contact with a balloon that is formed at an upper portion of the yarn
supplying bobbin 21 by swinging the yam 20 unwound from the yarn
supplying bobbin 21. The unwinding assisting device 10 assists the
5 unwinding of the yam 20 by suitably controlling the size of the balloon.
[0034] The upstream yarn blow delivering unit 11 is an air sucker
device disposed in a position downstream of the unwinding assisting
device 10 adjacently to the unwinding assisting device 10. The
upstream yarn blow delivering unit 11 ejects compressed air, thereby
10 forming airflow to blow and deliver the yam 20 to the first catcher 14.
Thus, for example, when yam breakage occurs, the yam end on the yarn
supplying bobbin 21 side can be blown and delivered toward the
splicing device 13 by the operation of the upstream yam blow
delivering unit 11.
15 [0035] In the case immediately after a new yarn supplying bobbin 21 is
supplied to the yam supplying unit 6, the auxiliary blow delivering unit
28 blows and delivers the yarn end to a position where the upstream
yam blow delivering unit 11 can blow and deliver the yam end toward
the splicing device 13.
20 [0036] The auxiliary blow delivering unit 28 ejects compressed air into
the inside of the conveying tray 26 and the yam supplying bobbin 21
that are formed in hollow shapes, thereby forming, at the distal end of
the yarn supplying bobbin 21, an airflow to blow and deliver the yarn 20
on the yam supplying bobbin 21 toward the upstream yam blow
25 delivering unit 11. When the newly supplied yam supplying bobbin 21
is supported in the yam supplying unit 6, the auxiliary blow delivering
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unit 28 and the upstream yam blow delivering unit 11 operate in
conjunction with each other, and thus the yam end on the yam
supplying bobbin 21 side can be reliably delivered toward the splicing
device 13.
5 [0037] The second catcher 12 is disposed upstream of the splicing
device 13. The second catcher 12 is connected to a suction-flow
generating source (not depicted). During splicing, the second catcher
12 generates a suction airflow to suction and catch the yam 20 on the
yam storage device 18 side.
10 [0038] The splicing device 13 splices split yams 20. Under conditions
in which the yam 20 between the yam supplying bobbin 21 and the yam
storage device 18 is cut, such as a case of yam cut when the yam
monitor 17 detects a yam defect and cuts the yam 20 with the cutter 16,
a case of yam cut when the yam 20 being unwound from the yam
15 supplying bobbin 21 is cut, or a case of changing the yam supplying
bobbins 21, the splicing device 13 splices the yam 20 on the yam
supplying bobbin 21 side and the yam 20 on the yam storage device 18
side. The splicing device 13 is disposed in a position slightly
separated from the yam path in a retracting manner. The splicing
20 device 13 can splice the yam ends brought in together into a continuous
yam 20. As the splicing device 13, at least one of a device using fluid
such as compressed air and a mechanical device can be used.
[0039] The first catcher 14 is disposed in a position downstream of the
splicing device 13 adjacently to the splicing device 13. The first
25 catcher 14 is connected to a negative-pressure source (not depicted) and
is configured as a tubular member having an opening formed on its
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distal end. The first catcher 14 includes an advancing/retreating drive
unit 47. The advancing/retreating drive unit 47 causes the first catcher
14 to advance to or retreat from the yarn path.
[0040] The first catcher 14, while being approaching the yarn path,
5 generates a suction airflow at the distal end side thereof, thereby
suctioning and catching the yam end from the yarn supplying bobbin 21
blown and delivered by the upstream yam blow delivering unit 11.
When the yarn 20 is cut with the cutter 16, the first catcher 14 suctions
and catches the yam end of the cut yam 20 on the yarn supplying
10 bobbin 21 side. The first catcher 14 may be configured to generate a
suction airflow at the distal end side thereof, thereby suctioning and
removing fluff, for example, sticking on the traveling yarn 20. The
first catcher 14 retreats from the yarn path while catching the yarn end
from the yarn supplying bobbin 21, and thus can bring the yarn end into
15 the splicing device 13.
[0041] The tension applying unit 15 applies a predetermined tension to
the traveling yam 20. The tension applying unit 15 is configured as a
gate-type unit in which movable comb teeth are disposed with respect to
fixed comb teeth. The tension applying unit 15 applies a
20 predetermined resistance by causing the yam 20 to travel between the
comb teeth. The movable comb teeth are configured to be movable by,
for example, a solenoid so that the comb teeth mesh with or disengage
from each other. This enables the tension applying unit 15 to adjust
the tension to be applied to the yarn 20. The configuration of the
25 tension applying unit 15 is not limited to a particular configuration, and
a disk-type tension applying unit may be used.
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[0042] The yarn monitor 17 monitors the thickness, for example, of the
yarn 20 with an appropriate sensor, thereby detecting a yarn defect such
as at least one of slub and mixing of foreign matter. In a position
adjacent to the yarn monitor 17 on the upstream side of the yarn monitor
5 1 7, the cutter 16 is disposed. When the yarn monitor 17 has detected a
yarn defect, the cutter 16 immediately cuts the yarn 20.
[0043] The cutter 16 and the yarn monitor 17 are accommodated
together in a housing 19. The housing 19 accommodating the yarn
monitor 17 is disposed in a position downstream of the tension applying
10 unit 15 adjacently to the tension applying unit 15. This configuration
enables the yarn monitor 17 to monitor the vicinity of an area where the
traveling yarn 20 is held (guided) by the tension applying unit 15.
Thus, the yarn 20 in this monitored area is less likely to shake, whereby
the yarn monitor 17 can detect a defect of the yarn 20 with higher
15 accuracy.
[0044] The downstream yarn blow delivering unit 48 is an air sucker
device disposed in a position upstream of the yam storage device 18
adjacently to the yarn storage device 18. The downstream yarn blow
delivering unit 48 ejects compressed air, thereby forming an airflow to
20 blow off the yarn end on the yarn storage device 18 side and deliver this
yard end to the second catcher 12. Specifically, the downstream yam
blow delivering unit 48 includes a thin tubular guide member through
which the yarn 20 can be passed and a yarn guiding member 60 that is a
curved tubular member. On one end of the guide member, a blow port
25 for the yarn 20 is formed. The yarn guiding member 60 is provided
adjacently to the blow port of the downstream yarn blow delivering unit
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48. On both longitudinal ends of the yam guiding member 60,
openings are each formed.
[0045] The yam guiding member 60 is disposed in such a manner that
the opening on one end thereof faces the blow port of the downstream
5 yam blow delivering unit 48 and the opening on the other end faces the
second catcher 12. Inside the yam guiding member 60, a guiding path
is formed. The guiding path connects between the openings on both
ends of the yarn guiding member 60 so as to detour around the yam
monitor 17, the tension applying unit 15, and the splicing device 13, for
10 example. The downstream yam blow delivering unit 48, the yam
guiding member 60, and the second catcher 12 constitute a storage-side
yam end catching device 50.
[0046] When the yam 20 is split between the yam supplying bobbin 21
and the yam storage device 18, the downstream yarn blow delivering
15 unit 48 catches the yam 20 on the yarn storage device 18 side and blows
off this yard 20 to the guiding path of the yarn guiding member 60, pulls
out the yarn 20 along the guiding path, and causes the second catcher 12
to catch the yarn 20. The yarn guiding member 60 has a pass-through
slit (not depicted) formed along the entire length thereof. This allows
20 the yarn 20 to be pulled out from the inside ofthe yarn guiding member
60 while the yam 20 is caught by the second catcher 12. In the
above-described manner, the yam 20 on the yarn storage device 18 side
is blown and delivered by the downstream yam blow delivering unit 48,
and the yam 20 can be guided toward the splicing device 13.
25 [0047] Each winder unit 2 includes a control unit 25. The control unit
25 includes hardware such as a CPU, a ROM, and a RAM (not
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depicted). The RAM stores therein software such as a control
program. The control unit 25 controls each component of the winder
unit 2 by cooperative operation of the software and the hardware. The
control unit 25 is configured to be able to communicate with the
5 machine control device 3. This enables the machine control device 3
to centrically manage operation of the winder unit 2 provided in
plurality to the automatic winder 1.
[0048] The following describes the wax applying device 70 according
to the first embodiment in detail. In the following description, the
10 terms "front side" and "back side" respectively mean the front side
(front) and the back side (rear) of the winder unit 2. The "X-direction"
corresponds to the traversing direction of the yarn 20.
[0049] FIG. 3 to FIG. 6 illustrate states of the wax applying device 70
during normal winding. The period during normal winding is a wax
15 application time during which the yam 20 is continuous between the
yam supplying bobbin 21 and the package 30 and wax is being applied
to the traveling yam 20. FIG. 7 and FIG. 8 illustrate states of the wax
applying device 70 during replacement operation. The period during
replacement operation is a time during which the yarn 20 is continuous
20 between the yarn supplying bobbin 21 and the package 30 and a wax
body W is being replaced (when at least one of attachment and
detachment is performed). During replacement operation, the wax
body W is exposed outside a casing 72 so that the wax body W can be
replaced.
25 [0050] As depicted in FIG. 3 to FIG. 6, the wax applying device 70 is a
wax applying device attached to each winder unit 2. The wax applying
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device 70 rotates the wax body W having a cylindrical shape about the
axis thereof, and presses one end surface of the wax body W against the
yarn 20 that is traveling while being traversed. In this manner, the wax
applying device 70 applies wax to the yam 20.
5 [0051] The wax body W is a wax formed in a cylindrical shape. As
the wax, various types of waxes are used depending on, for example,
usage or specifications of the yam 20. Examples of the waxes that can
be used include natural waxes, synthetic waxes such as paraffin wax,
and a combination of these waxes. The wax applying device 70
10 includes the casing 72, traverse guiding portion 74, a wax support
portion 76, a moving mechanism 82, a locking mechanism 86, a
positioning portion 92, an upstream regulating guide 94, a downstream
regulating guide 96, and a cushion member 98.
[0052] The casing 72 is attached to a frame (not depicted) of the winder
15 unit 2. The casing 72 is structured with an upstream plate 72a, a
downstream plate 72b, and a side plate 72c. The upstream plate 72a
and the downstream plate 72b are each formed in a flat shape. The
upstream plate 72a and the downstream plate 72b are disposed so that
the thickness direction thereof extends along the traveling direction of
20 the yarn 20. The downstream plate 72b is disposed so as to face the
upstream plate 72a at a downstream position separated from the
upstream plate 72a at a predetermined distance. In some of the
drawings, for convenience of description, the downstream plate 72b is a
chain line.
25 [0053] The side plate 72c fixedly connects one end of the upstream
plate 72a and one end of the downstream plate 72b in the X-direction.
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The side plate 72c extends orthogonally to the upstream plate 72a and
the downstream plate 72b.
[0054] On the side plate 72c, a screw hole 73 is formed. Into the
screw hole 73, a screw N is inserted. The side plate 72c is fixed to the
5 frame (not depicted) of the winder unit 2 with the screw N. In this
manner, the casing 72 is attached to the winder unit 2. In other words,
the casing 72 has the screw hole 73 and the screw N as attachment parts
for attaching the casing 72 to the winder unit 2. The screw hole 73 and
the screw N are provided to the casing 72 in a fixed manner.
10 [0055] The traverse guiding portion 74 guides the yam 20 to be wound
by the package 30 (see FIG. 2) so that the yam 20 is traversed forming a
traverse area P. The traverse area P is a plane of motion of the yam 20
that is formed by the yam 20 being traversed. The traverse area P is a
triangular plane (see FIG. 5) having a vertex (traversing center) at the
15 upstream end, in which the height direction thereof corresponds to the
traveling direction of the yam 20, and the width direction thereof
corresponds to the X-direction corresponding to the traversing direction.
The traverse area is also called "traverse plane". The traverse guiding
portion 74 is structured with a hole portion 74a formed on the upstream
20 plate 72a and a slit portion 74b formed on the downstream plate 72b.
In other words, the traverse guiding portion 7 4 is provided to the casing
72 in a fixed manner.
[0056] Through the hole portion 74a, the yam 20 traversed on the
traverse area P passes. Through the hole portion 74a, the yam 20
25 traversed on the traverse area P passes at a position of a first traverse
width on the traversing center side. The hole portion 74a
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communicates with an opening portion 75a that is open to the front side.
The opening portion 75a forms a yarn passage through which the yarn
20 enters the hole portion 7 4a. In the present embodiment, in the hole
portion 74a, the starting point of the traverse area Pis formed.
5 [0057] The slit portion 74b extends along the X-direction. The slit
portion 7 4b faces the hole portion 7 4a in the traveling direction of the
yam 20. Through the slit portion 74b, the yarn 20 traversed on the
traverse area P passes. Through the slit portion 74b, the yarn 20
traversed on the traverse area P passes at a position of a second traverse
10 width that is larger than the first traverse width. The slit portion 74b
communicates with an opening portion 75b that is open to the front side.
The opening portion 75b forms a yam passage through which the yarn
20 enters the slit portion 74b.
[0058] The wax support portion 76 supports the wax body W while
15 being positioned in at least part of the traverse area P (see FIG. 5).
During normal winding, the wax support portion 76 supports the wax
body W so as to press one end surface (end surface on the front side) of
the wax body W against the traverse area P. The wax support portion
76 is structured with a mounting shaft 77 and a hold-down lever 78.
20 [0059] The mounting shaft 77 is inserted into a cylindrical hole of the
wax body W, and the wax body W is mounted thereon so as to be
synchronously rotatable. The mounting shaft 77 is disposed between
the upstream plate 72a and the downstream plate 72b. The rear end of
the mounting shaft 77 is attached to a motor 79 configured to
25 rotationally drive the mounting shaft 77. The motor 79 is fixed to a
swing arm 84 described later. Accordingly, the mounting shaft 77
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pivotally supports the wax body W rotatably on the swing arm 84
described later.
[0060] The hold-down lever 78 presses the wax body W mounted on
the mounting shaft 77 to the front side. The hold-down lever 78 is
5 disposed between the upstream plate 72a and the downstream plate 72b.
The hold-down lever 78 includes a swing shaft 78a provided on the base
end side thereof and a pressing portion 78b provided on the distal end
side thereof.
[0061] The hold-down lever 78 is configured to be swingable about the
10 swing shaft 78a. The swing shaft 78a is vertically disposed on the
swing arm 84 described later. The swing shaft 78a extends along the
traveling direction of the yam 20. To the swing shaft 78a, a torsion
coil spring (not depicted) is attached. The hold-down lever 78 is
biased by the elastic force of the torsion coil spring, whereby the
15 pressing portion 78b is biased toward the front side. Accordingly, the
hold-down lever 78 presses a flange-shaped member Wa attached to the
rear end surface of the wax body W with the pressing portion 78b to
press the wax body W against the traverse area P toward the front side.
[0062] On an end portion of the hold-down lever 78 on the side
20 opposite to the pressing portion 78b side, a swing restricting pin 78c is
vertically disposed. The hold-down lever 78 is biased by the elastic
force of the torsion coil spring attached to the swing shaft 78a, whereby
the swing restricting pin 78c is biased rearward. During replacement
operation, the swing restricting pin 78c engages with an engaging piece
25 80 provided on the inner surface (surface on the upstream plate 72a
side) of the downstream plate 72b, thereby restricting swinging of the
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hold-down lever 78 (details will be described later).
[0063] The wax body W supported by the wax support portion 76 as
described above is positioned on the side (back side) opposite to the
front side of the traverse area P. In other words, the traverse area P is
5 positioned on the front side of the wax body W. The wax support
portion 76 is attached to the casing 72 with the moving mechanism 82
that is configured to be movable in a direction separating from the
traverse area P in order to attach and detach the wax body W.
[0064] The moving mechanism 82 includes a rotation shaft 83
10 extending along the traveling direction of the yarn 20. The moving
mechanism 82 moves the wax support portion 76 rotationally about the
rotation shaft 83 with respect to the casing 72 to open and close the wax
support portion 76. In other words, the moving mechanism 82 is a
rotationally opening-and-closing mechanism configured to allow the
15 wax support portion 76 to move between the state of the wax applying
device 70 during normal winding (see FIG. 3 to FIG. 6) and the state of
the wax applying device 70 during replacement operation (see FIG. 7
and FIG. 8). The moving mechanism 82 herein enables the wax
applying device 70 to be of a rear-opening type, which is opened by
20 swinging the wax support portion 76 to the back side.
[0065] The moving mechanism 82 includes the swmg arm 84
configured to be rotatable (swingable) about the rotation shaft 83. The
moving mechanism 82 rotates (swings) the swing arm 84 about the
rotation shaft 83, thereby rotationally moving (swingingly moving) the
25 wax support portion 76 attached to the swing arm 84 with respect to the
casing 72.
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[0066] The rotation shaft 83 is disposed between the upstream plate 72a
and the downstream plate 72b. The rotation shaft 83 is fixed to the
downstream plate 72b with a screw, for example. The swing arm 84 is
disposed in the wax applying device 70 on the back side. The swing
5 arm 84 has a shape of a substantially L-shaped plate the thickness
direction of which corresponds to the traveling direction of the yam 20.
To the swing arm 84, in a portion (L-shaped bending portion) between
one end and the other end thereof, the rotation shaft 83 is attached.
[0067] To one end portion of the swing arm 84, the mounting shaft 77
10 and the motor 79 are attached. Specifically, the one end portion of the
swing arm 84 is provided with a vertical-plate portion 84a that is fixed
upright as if the one end portion on the front side is bent to form the
vertical-plate portion. The vertical-plate portion 84a extends so as to
protrude downstream from the downstream plate 72b. The mounting
15 shaft 77 penetrates the vertical-plate portion 84a. The motor 79
connected to this mounting shaft 77 is fixed to the one end portion of
the swing arm 84 while being in contact with the vertical-plate portion
84a. To the other end portion of the swing arm 84, the hold-down
lever 78 is attached. Specifically, to the other end portion of the swing
20 arm 84, the swing shaft 78a of the hold-down lever 78 is fixed. Thus,
at the other end portion of the swing arm 84, the hold-down lever 78 is
supported swingably about the swing shaft 78a.
[0068] During normal winding and during replacement operation, the
locking mechanism 86 restricts the moving mechanism 82 so that the
25 wax support portion 76 is not moved by a force equal to or smaller than
a predetermined force. Herein, the locking mechanism 86 locks
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operation of the swing arm 84 so that the swing arm 84 does not swing
even when a force equal to or smaller than the predetermined force is
applied to the swing arm 84. The locking mechanism 86 includes a
lock pin 87, a cam 88, a locking shaft 89, a locking arm 90, and a
5 torsion coil spring 91.
[0069] The lock pin 87 is formed in a cylindrical shape the axial
direction of which corresponds to the traveling direction of the yam 20.
The lock pin 87 is vertically disposed on the other end portion of the
swing arm 84. The cam 88 is formed in a cylindrical shape the axial
10 direction of which corresponds to the traveling direction of the yarn 20.
The outer peripheral surface of the cam 88 is in slidable contact with the
outer peripheral surface of the lock pin 87. The locking shaft 89 is
disposed between the upstream plate 72a and the downstream plate 72b.
The locking shaft 89 extends in the traveling direction of the yarn 20.
15 The locking shaft 89 is fixed to the upstream plate 72a with a screw, for
example.
[0070] The locking arm 90 on the base end side is provided with the
locking shaft 89. The locking arm 90 is configured to be swingable
about the locking shaft 89. To the locking arm 90 on the distal end
20 side, the cam 88 is attached rotatably about the shaft of the cam 88.
The torsion coil spring 91 is attached to the locking shaft 89. The
torsion coil spring 91 biases, with its elastic force, the locking arm 90 so
that the locking arm 90 is not swung by a force equal to or smaller than
the predetermined force.
25 [0071] In the locking mechanism 86 thus configured, during normal
winding, the cam 88 engages with the lock pin 87 on the mounting shaft
19
FP 16-0409-00IN
77 side as depicted in FIG. 4. Accordingly, to the swing arm 84, the
predetermined force (predetermined force acting about the rotation shaft
83 in the rotational direction) is applied in the closing direction.
Consequently, the wax body W supported on the swing arm 84 is
5 pressed hard to the front side, whereby backlash of the wax body W can
be prevented. In contrast, during replacement operation, the cam 88
engages with the lock pin 87 on the side opposite to the mounting shaft
77 side as depicted in FIG. 8. Accordingly, to the swing arm 84, the
predetermined force (predetermined force acting about the rotation shaft
10 83 in the rotational direction) is applied in the opening direction.
[0072] As depicted in FIG. 3 to FIG. 6, the positioning portion 92 is in
contact with the wax body W supported by the wax support portion 76
through the traverse area P. In this manner, the positioning portion 92
positions the wax body W with respect to the yarn 20. The positioning
15 portion 92 is disposed between the upstream plate 72a and the
downstream plate 72b. During normal winding, the positioning
portion 92 faces the front side of the wax body W. The positioning
portion 92 includes a plurality of wax pins 93. During normal
winding, the wax pins 93 are caused to abut one end surface of the wax
20 body W supported by the wax support portion 76. The positioning
portion 92 is fixed to the upstream plate 72a and the downstream plate
72b with screws, for example. In other words, the positioning portion
92 is provided to the casing 72 in a fixed manner.
[0073] The upstream regulating guide 94 and the downstream
25 regulating guide 96 are members configured to regulate the yam path of
the yarn 20. The upstream regulating guide 94 and the downstream
20
FP16-0409-00IN
regulating guide 96 are each formed in a flat shape. The upstream
regulating guide 94 and the downstream regulating guide 96 are
disposed so that the thickness direction thereof corresponds to the
traveling direction of the yam 20.
5 [0074] The upstream regulating guide 94 is provided upstream of and
adjacently to the wax body W in the traveling direction of the yam 20
during normal winding. The upstream regulating guide 94 is provided
at the starting point of the traverse area P. When viewed from the
upstream side, the end surface of the upstream regulating guide 94 on
10 the front side lies inside the hole portion 74a of the traverse guiding
portion 74. The upstream regulating guide 94 is fixed to the inner
surface (surface on the downstream plate 72b side) of the upstream plate
72a with screws, for example.
[0075] The downstream regulating guide 96 is provided downstream of
15 and adjacently to the wax body Win the traveling direction of the yam
20 during normal winding. The downstream regulating guide 96 is
provided on the back side of the traverse area P. When viewed from
the downstream side, the end surface of the downstream regulating
guide 96 on the front side lies inside the slit portion 74b of the traverse
20 guiding portion 74. The downstream regulating guide 96 is fixed to
the inner surface of the downstream plate 72b with screws, for example.
[0076] When the swing arm 84 is swung in changing states from
replacement operation to normal winding (when the wax support
portion 76 is closed), the cushion member 98 absorbs (cushions) shocks
25 generated by contact between the vertical-plate portion 84a of the swing
arm 84 and the downstream plate 72b. As the cushion member 98, for
21
FP16-0409-00IN
example, a resin part can be used. The cushion member 98 is provided
to the downstream plate 72b so as to be sandwiched between the
downstream plate 72b and the vertical-plate portion 84a during normal
winding. The cushion member 98 can suppress noise and damage
5 generated by contact between the vertical-plate portion 84a and the
downstream plate 72b.
[0077] In the wax applying device 70, as depicted in FIG. 6, a bending
angle 8 1 at which the yam 20 brought in bends from the reference plane
S toward the starting point of the traverse area P is set larger than a
1 0 bending angle 82 at which the yam 20 brought out bends from the
reference plane S toward the package 30. The reference plane S is a
plane extends along a contact location between the wax body W and the
traverse area P. The reference plane S extends along the end surfaces
of the upstream regulating guide 94 and the downstream regulating
15 guide 96 on the front side. The bending angles 81 and 82 are angles
between the reference planeS and the yam 20. The bending angles 81
and 82 are angles inclined from the reference plane S. The
configuration for achieving the bending angles 8 1 and 82 is not limited
to a particular configuration. For example, the angle at which the wax
20 applying device 70 is attached to the winder unit 2 may be changed to
achieve the condition of bending angle 81 >bending angle 82.
[0078] The following describes one example of operation for
replacement of the wax body Win the wax applying device 70.
[0079] In the state during normal winding depicted in FIG. 3 and FIG. 4,
25 when replacing the wax body W, an operator pushes the distal end
portion of the hold-down lever 78 toward the back side, and pushes the
22
FP 16-0409-00IN
vertical-plate portion 84a toward the back side to apply a force for
swinging the swing arm 84 in the opening direction 0 thereto.
[0080] In the locking mechanism 86, the cam 88 engages with the lock
pin 87. To the swing arm 84, a predetermined restricting force is
5 applied in the direction opposite to the opening direction 0. Thus,
when the applied force is equal to or smaller than the predetermined
force, the swing arm 84 does not swing. In contrast, when a force
larger than the predetermined force is applied, the lock pin 87 slides so
as to climb over the cam 88, and the swing arm 84 swings in the
10 opening direction 0. Consequently, the wax support portion 76
swingingly moves so that the end portion of the wax body W on the
front side is exposed outside the casing 72, and thus the state shifts to
the state during replacement operation depicted in FIG. 7 and FIG. 8.
[0081] When the swing arm 84 swings in the opening direction 0, the
15 swing restricting pin 78c of the hold-down lever 78 passes by the front
side of the engaging piece 80. In the state during replacement
operation depicted in FIG. 7 and FIG. 8, the swing restricting pin 78c is
biased rearward by the elastic force of the torsion coil spring, and the
swing restricting pin 78c on the back side engages with the engaging
20 piece 80 on the front side, and thereby disabling the swing restricting
pin 78c from moving any farther to the back side. Thus, in the state
during replacement operation, swing of the hold-down lever 78 is
restricted, and pressing of the wax body W by the hold-down lever 78 is
stopped. Consequently, the wax body W can be prevented from being
25 unintendedly pushed and pulled out by the hold-down lever 78.
[0082] In the state during replacement operation, the cam 88 engages
23
FP16-0409-00IN
with the lock pin 87. To the swing arm 84, a predetermined restricting
force is applied in the direction opposite to the closing direction C.
Thus, even if the operator releases his/her hold, the swing arm 84 can be
prevented from returning (closing in the closing direction C), and the
5 operator can easily perform replacement operation.
[0083] In the above-described state during replacement operation, after
replacing the wax body W with new one, the operator applies a force for
swinging the swing arm 84 in the closing direction C thereto in order to
change the state back to the state during normal winding. By the
10 restricting force of the above-described locking mechanism 86, when
the applied force is equal to or smaller than the predetermined force, the
swing arm 84 is caused not to swing. In contrast, when a force larger
than the predetermined force is applied, the lock pin 87 slides so as to
climb over the cam 88, and the swing arm 84 swings in the closing
15 direction C, so that the state shifts to the state during normal winding
depicted in FIG. 3 and FIG. 4.
[0084] In a series of replacement operations described above, the casing
72 is continuously being attached to the winder unit 2. By the traverse
guiding portion 7 4 provided to this casing 72 in a fixed manner, the
20 traveling yarn 20 continues to be guided so as to be traversed forming
the traverse area P. In such a manner that the wax support portion 76
and the wax body W do not pass through (across) the traverse area P, the
wax support portion 76 is swingingly moved by the moving mechanism
82.
25 [0085] As depicted in FIG. 4 and FIG. 9, in the state during normal
winding, for example, when the wax body W is consumed and the
24
FP 16-0409-00IN
hold-down lever 78 swings in a direction of pressing the wax body W,
the swing restricting pin 78c moves so as to pass by the back side of the
engaging piece 80. Thus, in this case, the swing restricting pin 78c
that is biased rearward does not engage with the engaging piece 80.
5 Consequently, while the swinging of the hold-down lever 78 is not
being restricted, the hold-down lever 78 can press the wax body W to
the front side.
[0086] As described in the foregoing, in the present embodiment of the
wax applying device 70, and the winder unit 2 and the automatic winder
10 1 including the wax applying device 70, the wax support portion 76
supports the wax body W. This wax support portion 76 is attached to
the casing 72 with the moving mechanism 82 that is configured to be
movable in the direction separating from the traverse area P. Thus,
after the moving mechanism 82 moves the wax support portion 76 in
15 order to attach and detach the wax body W, the wax body W can be
replaced. At this time, because the traverse guiding portion 74 is
provided to the casing 72 in a fixed manner, regardless of whether the
wax support portion 76 is being moved by the moving mechanism 82,
the traverse guiding portion 7 4 can guide the yarn 20 to be wound by
20 the package forming unit 8 so that the yam 20 is traversed. Although
the traverse guiding portion 74 is provided to the casing 72 in a fixed
manner, the traverse guiding portion 7 4 may be configured so that the
position thereof can be slightly adjusted.
[0087] Thus, replacement of the wax body W can be prevented from
25 affecting the yam path (interfering with the connected state of the yarn
20). Consequently, the wax body W can be easily replaced while the
25
FP 16-0409-00IN
yam 20 from the package 30 is being connected. The wax body W can
be replaced without loosening the traversed yam 20. During
replacement operation of the wax body W, the traversed yam 20 can be
made less likely to be accidentally caught in something. Furthermore,
5 in the present embodiment, the wax body W is positioned in at least part
of the traverse area P, which enables height reduction of the winder unit
2, and consequently downsizing thereof. The accuracy of positioning
the wax body W with respect to the traverse area P can be improved.
[0088] In general, the wax body W (wax applying device 70) 1s
10 disposed on a straight yam path instead of the traverse area P. By
contrast, in the present embodiment, the wax body W is disposed on the
traverse area P (is supported by the wax support portion 76 while being
positioned in at least part of the traverse area P). This eliminates the
need of leaving a space for the case of disposing the wax applying
15 device 70 on a straight yam path, and consequently, the dimensions of
the device in the yam path direction can be shortened.
[0089] In the wax applying device 70, the moving mechanism 82
moves the wax support portion 76 in such a manner that the wax
support portion 76 and the wax body W supported by the wax support
20 portion 76 do not pass through the traverse area P. Thus, the wax body
W can be attached and detached, and consequently can be replaced in
such a manner that the wax support portion 76 and the wax body W do
not pass through the traverse area P.
[0090] The wax applying device 70 has the screw N and the screw hole
25 73 for attaching the casing 72 to the winder unit 2. Because the screw
N and the screw hole 73 are provided to the casing 72 in a fixed manner,
26
FP 16-0409-00IN
regardless of whether the wax support portion 76 is being moved by the
moving mechanism 82, the casing 72 can be attached to the winder unit
2. Thus, replacement of the wax body W can be prevented from
affecting attachment of the casing 72.
5 [0091] The wax applying device 70 includes the positioning portion 92
configured to position the wax body W with respect to the yam 20.
Because the positioning portion 92 is provided to the casing 72 in a
fixed marmer, regardless of whether the wax support portion 76 is being
moved by the moving mechanism 82, the accuracy of positioning the
1 0 wax body W by the positioning portion 92 can be maintained. This
can prevent replacement of the wax body W from affecting the
positioning of the wax body W.
[0092] In the wax applying device 70, the movmg mechanism 82
rotationally moves the wax support portion 76 with respect to the casing
15 72 so that the wax support portion 76 rotates about the rotation shaft 83.
This configuration enables the wax body W to be easily replaced.
Even in a limited workspace, the operator can easily replace the wax
body W. A mechanism having reduced backlash can be constructed
with a small number of components. The operator can easily replace
20 the wax body W with one hand. During replacement operation of the
wax body W, a cable of the motor 79 can be prevented from being
heavily dragged.
[0093] The wax applying device 70 includes the locking mechanism 86
configured to restrict the moving mechanism 82 so that the wax support
25 portion 76 is not moved by a force equal to or smaller than the
predetermined force. With this configuration, for example, even ifthe
27
FP16-0409-00IN
operator releases his/her hold when the operator has caused the moving
mechanism 82 to move the wax support portion 76, the state of the wax
support portion 76 (state during replacement operation) can be
maintained. The wax body W can be easily replaced with one hand
5 facilitating the replacement operation.
[0094] In the wax applying device 70, the wax body W is positioned in
the side opposite to the front side of the traverse area P. With this
configuration, the yam path can be prevented from being hidden by the
wax body W when viewed from the front side. Consequently, the
10 wearing surface of the wax body W can be visually checked from the
front side, improving accessibility to the wax body W.
[0095] The wax applying device 70 includes the upstream regulating
guide 94. The upstream regulating guide 94 is provided upstream of
the wax body Win the traveling direction of the yam 20 and on the back
15 side of the traverse area P. The bending angle 81 of the yam 20
brought into the wax applying device 70 is set larger than the bending
angle 82 of the yam 20 brought out from the wax applying device 70.
By this setting, the yam 20 brought into the wax applying device 70 can
effectively touch the upstream regulating guide 94, and thus the tension
20 of the yam 20 can be stabilized. Consequently, wax can be caused to
stably adhere to the yam 20. Furthermore, for example, wax damage
(what is called "ring-shaped cut") caused by, for example, positioning
the wax body W on the traverse area P can be prevented.
[0096] The winder unit 2 includes the yam storage device 18 in a
25 position upstream of the wax applying device 70 in the traveling
direction of the yam 20. This configuration can prevent replacement
28
FP 16-0409-00IN
of the wax body W from affecting the yam path between the yam
storage device 18 and the package 30. Because a splicing device such
as the splicing device 13 is not disposed on the yam path between the
yam storage device 18 and the package 30, the above-described effect
5 of facilitating replacement of the wax body W while the yam from the
package 30 is being connected is particularly effective.
[0097] Second Embodiment
The following describes a wax applying device according to a
second embodiment. In the description of the present embodiment,
10 duplicate description already provided in the first embodiment is
omitted, and different points will be described.
[0098] As depicted in FIG. 10 and FIG. 11, this wax applying device
170 according to the second embodiment is different from the wax
applying device 70 of the first embodiment in including a moving
15 mechanism 182 instead of the moving mechanism 82 (see FIG. 3). In
FIG. 10 and FIG. 11, for convenience of description, illustration of the
positioning portion 92 is omitted.
[0099] The moving mechanism 182 slidingly moves the wax support
portion 76 with respect to the casing 72 to open and close the wax
20 support portion 76. In other words, the moving mechanism 182 is a
slidingly opening-and-closing mechanism configured to cause the wax
support portion 76 to move between the state of the wax applying
device 170 during normal winding (see FIG. 10) and the state of the wax
applying device 170 during replacement operation (see FIG. 11 ). The
25 moving mechanism 182 causes the wax support portion 76 to move
along an arc-shaped trajectory that is close in shape to a straight line
29
FP16-0409-00IN
extending in the X-direction so that the wax body W moves apart from
and moves closer to the traverse area P. This arc shape is an arc shape
that is convex toward the side opposite to the wax body W side. By
causing the wax support portion 76 to move along the arc-shaped
5 trajectory that is close in shape to a straight line, the wax body W can be
reliably separated apart from the traverse area P when the wax support
portion 76 is moved. The wax body W can be prevented from unstably
coming into contact with the yarn 20.
[0100] The moving mechanism 182 includes a slide plate 184
10 configured to slidingly move in the X-direction and cam grooves 185
and 186 formed on the downstream plate 72b. To the slide plate 184,
the mounting shaft 77, the motor 79, and the hold-down lever 78 are
attached. The slide plate 184 is provided with an engaging pin 184a
protruding downstream. The cam grooves 185 and 186 extend in an
15 arc shape along the X-direction that is the traversing direction. In the
cam groove 185, the engaging pin 184a of the slide plate 184 is
disposed. In the cam groove 186, the swing restricting pin 78c of the
hold-down lever 78 is disposed.
[0101] With the moving mechanism 182 thus configured, movement of
20 the engaging pin 184a and the swing restricting pin 78c along the
X-direction is guided by the cam grooves 185 and 186, respectively, and
the engaging pin 184a and the swing restricting pin 78c are caused to
move along the cam grooves 185 and 186, respectively. Thus, the
slide plate 184 slidingly moves along the X-direction.
25 [0102] Herein, one end of the cam groove 186 communicates with a
fore-and-aft groove 187 extending toward the back side. During
30
FP16-0409-00IN
normal winding depicted in FIG. 10, when the pressing portion 78b of
the hold-down lever 78 is positioned farthest on the back side, the swing
restricting pin 78c is positioned farthest on the front side in the cam
groove 186 (fore-and-aft groove 187). In this state, the swing
5 restricting pin 78c can move in the X-direction along the cam groove
186. Consequently, also the slide plate 184 can slidingly move along
the X-direction. By contrast, during normal winding, when the
pressing portion 78b of the hold-down lever 78 moves toward the front
side, the swing restricting pin 78c accordingly moves toward the back
10 side in the fore-and-aft groove 187. In this state, the swing restricting
pin 78c cannot move in the X-direction. Consequently, also the slide
plate 184 cannot slidingly move along the X-direction, and thus sliding
movement of the moving mechanism 182 is locked.
[0103] During replacement operation depicted in FIG. 11, the swing
15 restricting pin 78c is positioned in the other end of the cam groove 186.
In this state, the swing restricting pin 78c cannot move toward the back
side, which restricts swing of the hold-down lever 78, and pressing of
the wax body W by the hold-down lever 78 is stopped. Consequently,
the wax body W can be prevented from being unintendedly pushed and
20 pulled out by the hold-down lever 78.
[0104] As described above, according to the present embodiment, in the
wax applying device 170, replacement of the wax body W can be
prevented from affecting the yarn path. The moving mechanism 182
of the wax applying device 170 slidingly moves the wax support portion
25 76 with respect to the casing 72. This configuration enables the wax
body W to be easily replaced.
31
FP 16-0409-00IN
[0105] Third Embodiment
The following describes a wax applying device according to a
third embodiment. In the description of the present embodiment,
duplicate description already provided in the first embodiment is
5 omitted, and different points will be described.
[0106] As depicted in FIG. 12, this wax applying device 270 according
to the third embodiment is different from the wax applying device 70 of
the first embodiment in being a back-type device in which the traverse
area P is positioned on the back side of the wax body W. The wax
10 body W supported by the wax support portion 76 is positioned on the
front side of the traverse area P.
[0107] The wax applying device 270 is different from the wax applying
device 70 of the first embodiment in including a moving mechanism
282 instead of the moving mechanism 82 (see FIG. 3). The moving
15 mechanism 282 includes a rotation plate 284 configured to be rotatable
about a hinge 283. The rotation plate 284 is disposed in the wax
applying device 270 on the front side. The moving mechanism 282
rotates the rotation plate 284 about the hinge 283, thereby rotationally
moving the wax support portion 76 attached to the rotation plate 284
20 with respect to the casing 72. The moving mechanism 282 enables the
wax applying device 270 to be of a front-opening type in which the wax
support portion 76 is opened toward the front side.
[0108] As described above, according to the present embodiment, in the
wax applying device 170, replacement of the wax body W can be
25 prevented from affecting the yarn path.
[0109] Although embodiments of the present disclosure have been
32
FP 16-0409-00IN
described in the foregoing, the present disclosure is not limited to the
above-described embodiments.
[0110] FIG. 13 is a side view illustrating a wax applying device
according to a modification. As depicted in FIG. 13, the upstream
5 regulating guide 94 and the downstream regulating guide 96 according
to this modification regulate the yam path so that the yam path on the
downstream side (upper side in FIG. 13) is more separate from the wax
body W than the yam path on the upstream side (lower side in FIG. 13)
1s. In this illustrated example, the distal end of the downstream
10 regulating guide 96 on the front side is positioned farther on the front
side than the distal end of the upstream regulating guide 94 on the front
side. In other words, the downstream regulating guide 96 protrudes
toward the front side (the side separating from the wax body W) more
than the upstream regulating guide 94 does. When viewed from the
15 side, the straight line connecting the distal end of the downstream
regulating guide 96 with the distal end of the upstream regulating guide
94 is set so as not to be orthogonal to (cross at an angle of 90°) the axis
of the wax body W.
[0 111] By this setting, the wax body W on the upstream side can
20 effectively touch the yam 20, and thus wax can be caused to stably
adhere to the yarn 20. Furthermore, wax damage caused by
positioning the wax body W on the traverse area P can be prevented.
[0112] FIG. 14A is a perspective view illustrating an upstream
regulating guide according to a modification. FIG. 14B is a plan view
25 illustrating the upstream regulating guide according to the modification.
FIG. 14B illustrates a state when viewed from a direction along the yam
33
FP 16-0409-00IN
path of the yarn 20. As depicted in FIG 14A and FIG. 14B, when
viewed from the direction along the yarn path of the yam 20, the
upstream regulating guide 94 may be formed so that a portion on a one
side (left side in FIG 14B) of the yarn path, acting as a center, in the
5 X-direction corresponding to the traversing direction protrudes further
outward from the wax body W than a portion on an other side (right side
in FIG. 14B) ofthe yarn path in the X-direction.
[0113] Specifically, in the upstream regulating guide 94, the portion on
the other side from the yarn path (traversing center) has a front surface
10 94x extending planarly along the X-direction. In the upstream
regulating guide 94, the portion on the one side in the X-direction from
the yarn path protrudes to the front side with respect to the front surface
94x, and has a front surface 94y. The front surface 94y of the
upstream regulating guide 94 is inclined in a curved shape so as to tilt
15 toward the front side in a position farther to the one side in the
X-direction from the position of the yarn path, and then extends planarly
along the traversing direction in a position farther to the front side than
the front surface 94x.
[0114] Herein, the rotational direction CW of the wax body W is
20 clockwise when viewed from the front. In this case, the one side in
X-direction protruding in the upstream regulating guide 94 corresponds
to the left side when viewed from the front. When the rotational
direction CW of the wax body W is counterclockwise when viewed
from the front, the one side in the X-direction protruding in the
25 upstream regulating guide 94 corresponds to the right side when viewed
from the front.
34
FP 16-0409-00IN
[0115] With this configuration, the wax body W can be effectively
touch the yarn 20, and thus wax can be caused to more stably adhere to
the yam 20. Furthermore, wax damage caused by positioning the wax
body W on the traverse area P can be more reliably prevented.
5 [0116] In the above-described embodiments, a configuration may be
used in which the yarn storage device 18 is omitted, the yam 20 from
the yarn supplying unit 6 is directly wound by the package forming unit
8, and when the yam 20 is split, the yam 20 is caught from the package
forming unit 8 to be brought into the splicing device 13. In the above
10 description, the expression "provided in a fixed manner" includes, in
addition to the case of being providing so as to be completely
(integrally) fixed, a case of being provided in a position adjustable
manner by a position adjusting mechanism, for example.
[0 117] In the above-described embodiments, the configuration of the
15 yam supplying unit 6 is not limited to a tray conveying type, and a
configuration may be used in which a new yarn supplying bobbin 21 is
supplied from a magazine-type bobbin feeder. In this configuration,
when the bobbin feeder supplies a new yam supplying bobbin 21 to the
yam supplying unit 6, the bobbin feeder can pull out a yarn end from
20 the yarn supplying bobbin 21 to deliver the yarn end to the upstream
yarn blow delivering unit 11. In this case, the auxiliary blow
delivering unit 28 can be omitted.
[0118] In the above-described embodiments, one example of the
package forming unit 8 has been described in which the yarn 20 is
25 traversed by the traverse drum 24, but the traversing method is not
limited to this. As a method of traversing the yarn 20, an arm-type or
35
FP 16-0409-00IN
belt-type traverse mechanism may be used. In the above-described
embodiments, torsion coil springs are used, but various types of elastic
members may be used. In the above-described embodiments, the
package 30 may be wound in a cheese shape, or the package 30 may be
5 wound in a cone shape. The materials and shapes of the respective
components are not limited to those described above, and various types
of materials and shapes may be used.
[0119] At least some of the above-described embodiments may be used
in combination.
10 [0120] In the wax applying device, the attachment parts may be
provided to the casing in a fixed manner. In this configuration,
regardless of whether the wax support portion is being moved by the
moving mechanism, the casing can be attached to the yarn winding
device. Thus, replacement of the wax body can be prevented from
15 affecting the attachment of the casing.
[0121] The wax applying device may be a wax applying device
configured to apply wax to a traveling yam and including: a casing
including an attachment part for attaching the casing to the yam
winding device; a traverse guiding portion configured to guide the yam
20 to be wound by a winding unit of the yam winding device so that the
yam is traversed forming a traverse area; a wax support portion
configured to support the wax body; and a motor configured to rotate
the wax body about an axis of the wax body. The traverse guiding
portion is provided to the casing in a fixed marmer, and the motor and
25 the wax support portion are attached to the casing with a moving
mechanism that is configured to be movable in a direction separating
36
FP16-0409-00IN
from the traverse area.
[0122] The wax applying device may be a device configured to apply
wax to a traveling yam and including: a casing including an attachment
part for attaching the casing to a yam winding device; a traverse guiding
5 portion configured to guide the yam to be wound by a winding unit of
the yam winding device so that the yam is traversed forming a traverse
area; and a wax support portion including a hold-down lever configured
to press the wax body against the traverse area and configured to
support the wax body. The traverse guiding portion is provided to the
1 0 casing in a fixed manner, and the wax support portion is attached to the
casing with a moving mechanism that is configured to be movable in a
direction separating from the traverse area.
[0123] The wax applying device may be a wax applying device
configured to apply wax to a traveling yam and including: a casing
15 including an attachment part for attaching the casing to a yam winding
device; a traverse guiding portion configured to guide the yam to be
wound by a winding unit of the yam winding device so that the yam is
traversed forming a traverse area; and a wax support portion configured
to support a wax body so that the wax body is positioned in at least part
20 of the traverse area. The traverse guiding portion is provided to the
casing in a fixed manner, and the wax support portion is attached to the
casing with a moving mechanism that is configured to be movable in a
direction separating from the traverse area in order to attach and detach
the wax body.
25 [0124] The wax applying device may be a wax applying device
configured to apply wax to a traveling yam and including: a casing
37
FP 16-0409-00IN
including an attachment part for attaching the casing to a yarn winding
device; a traverse guiding portion configured to guide the yarn to be
wound by a winding unit of the yam winding device so that the yam is
traversed forming a traverse area; a wax support portion configured to
5 support the wax body; and an upstream regulating guide provided
upstream of the wax body in a traveling direction of the yarn and
configured to regulate a yam path of the yarn. The upstream
regulating guide is provided to at a starting point of the traverse area,
and when a plane extending along a contact location between the wax
1 0 body and the traverse area is assumed to be a reference plane, a bending
angle (81) at which the yam brought into the wax applying device bends
from the reference plane toward the starting point is larger than a
bending angle (82) at which the yarn brought out from the wax applying
device bends from the reference plane toward a package. With this
15 wax applying device, the yarn brought into the wax applying device can
efficiently touch the regulating guide, and thus the tension of this yarn
can be stabilized. Consequently, wax can be caused to stably adhere to
the yam. Furthermore, wax damage can be prevented.
[0125] The wax applying device may be a wax applying device
20 configured to apply wax to a traveling yam and including: a casing
including an attachment part for attaching the casing to a yam winding
device; a traverse guiding portion configured to guide the yam to be
wound by a winding unit of the yarn winding device so that the yam is
traversed forming a traverse area; a wax support portion configured to
25 support the wax body; an upstream regulating guide provided upstream
of the wax body in a traveling direction of the yam and configured to
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regulate a yarn path of the yarn; and a downstream regulating guide
provided downstream of the wax body in the traveling direction of the
yam and is configured to regulate the yam path of the yarn. The
upstream regulating guide and the downstream regulating guide regulate
5 the yam path so that the yam path on a downstream side is more
separated from the wax body than the yam path on an upstream side.
With this wax applying device, the above-described effect of preventing
wax damage can be obtained.
[0126] The wax applying device may be a wax applying device
10 configured to apply wax to a traveling yam and including: a casing
including an attachment part for attaching the casing to a yarn winding
device; a traverse guiding portion configured to guide the yarn to be
wound by a winding unit of the yarn winding device so that the yarn is
traversed forming a traverse area; a wax support portion configured to
15 support the wax body; and an upstream regulating guide provided
upstream of the wax body in a traveling direction of the yarn and
configured to regulate a yarn path of the yarn. The upstream
regulating guide, when viewed from a direction along the yarn path, is
formed so that a portion on a one side of the yarn path, acting as a
20 center, in a traversing direction protrudes further outward from the wax
body than a portion on an other side of the yarn path in the traversing
direction. With this wax applying device, the above-described effect
of preventing wax damage can be obtained.
[0127] In the wax applying device according to the one aspect of the
25 present disclosure, the wax support portion supports the wax body.
This wax support portion is attached to the casing with the moving
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mechanism that is configured to be movable in the direction separating
from the traverse area. Thus, after the moving mechanism moves the
wax support portion in order to attach and detach the wax body, the wax
body can be replaced. At this time, because the traverse guiding
5 portion is provided to the casing in a fixed manner, regardless of
whether the wax support portion is being moved by the moving
mechanism, the traverse guiding portion can guide the yam to be wound
by the winding unit so that the yam is traversed. Thus, in the wax
applying device, replacement of the wax body can be prevented from
1 0 affecting the yam path. Consequently, the wax body can be easily
replaced while the yarn from the package is being connected.
[0128] In the wax applying device according to one aspect of the
present disclosure, the moving mechanism may move the wax support
portion in such a manner that the wax support portion and the wax body
15 supported by the wax support portion do not pass through the traverse
area. With this configuration, the wax body can be replaced in such a
manner that the wax support portion and the wax body do not pass
through the traverse area.
[0129] The wax applying device according to one aspect of the present
20 disclosure may further include a positioning portion configured to be in
contact with the wax body supported by the wax support portion
through the traverse area to position the wax body with respect to the
yam. The positioning portion may be provided to the casing in a fixed
manner. With this configuration, regardless of whether the wax
25 support portion is being moved by the moving mechanism, the accuracy
of positioning the wax body by the positioning portion can be
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maintained. This can prevent replacement of the wax body from
affecting the positioning of the wax body.
[0130] In the wax applying device according to one aspect of the
present disclosure, the moving mechanism may include a rotation shaft
5 and rotationally moves the wax support portion with respect to the
casing so that the wax support portion rotates about the rotation shaft.
This configuration enables the wax body to be easily replaced. Even
in a limited workspace, the wax body can be easily replaced.
[0 131] In the wax applying device according to one aspect of the
1 0 present disclosure, the moving mechanism may slidingly move the wax
support portion with respect to the casing. This configuration enables
the wax body to be easily replaced.
[0132] In the wax applying device according to one aspect of the
present disclosure, the moving mechanism may move the wax support
15 portion along an arc-shaped trajectory. With this configuration, the
wax support portion can be moved along the arc-shaped trajectory and
the wax body can be separated from the traverse area.
[0133] The wax applying device according to one aspect ofthe present
disclosure may further include a locking mechanism configured to
20 restrict the moving mechanism so that the wax support portion is not
moved by a force equal to or smaller than a predetermined force. With
this configuration, for example, even if an operator releases his/her hold
when the operator has caused the moving mechanism to move the wax
support portion, the state of the wax support portion can be maintained,
25 facilitating operation of replacing the wax body.
[0134] In the wax applying device according to one aspect of the
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present disclosure, the moving mechanism may move the wax support
portion so that the wax body is exposed outside the casing. With this
configuration, the moving mechanism can move the wax body to a state
for replacement operation.
5 [0135] A yam winding device according to one aspect of the present
disclosure includes the above-described wax applying device. In this
yam winding device also, the same effect as the above-described effect,
that is, an effect of preventing replacement of the wax body from
affecting the yam path can be obtained. The accuracy of positioning
10 the wax body with respect to the traverse area can be improved.
[0136] In the yam winding device according to one aspect of the
present disclosure, the wax body may be positioned opposite to a front
side of the yam winding device with respect to the traverse area. With
this configuration, the yam path can be prevented being hidden by the
15 wax body when viewed from the front side.
[0137] In the yam winding device according to one aspect of the
present disclosure, the wax applying device may further include an
upstream regulating guide provided upstream of the wax body in a
traveling direction of the yam and configured to regulate a yam path of
20 the yam. With this configuration, the upstream regulating guide can
regulate the yam path of the yam to prevent wax damage (what is called
"ring-shaped cut").
[0138] In the yam winding device according to one aspect of the
present disclosure, the upstream regulating guide may be provided at a
25 starting point of the traverse area, and when a plane extending along a
contact location between the wax body and the traverse area is assumed
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to be a reference plane, a bending angle (81) at which the yam brought
into the wax applying device bends from the reference plane toward the
starting point may be larger than a bending angle (82) at which the yam
brought out from the wax applying device bends from the reference
5 plane toward a package. With this configuration, the yarn brought into
the wax applying device can effectively touch the regulating guide, and
thus the tension of this yam can be stabilized. Consequently, wax can
be caused to stably adhere to the yam. Furthermore, wax damage can
be prevented.
10 [0139] In the yam winding device according to one aspect of the
present disclosure, the wax applying device may further include a
downstream regulating guide provided downstream of the wax body in
the traveling direction of the yarn and configured to regulate the yam
path of the yam. The upstream regulating guide and the downstream
15 regulating guide may regulate the yam path so that the yam path on a
downstream side is more separated from the wax body than the yam
path on an upstream side. This configuration also has the
above-described effect of preventing wax damage.
[0140] In the yam winding device according to one aspect of the
20 present disclosure, the upstream regulating guide, when viewed from a
direction along the yam path, is formed so that a portion on a one side
of the yam path, acting as a center, in a traversing direction protrudes
further outward from the wax body than a portion on an other side of the
yam path in the traversing direction. This configuration also has the
25 above-described effect of preventing wax damage.
[0 141] The yam winding device according to one aspect of the present
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disclosure may further include: a yarn supplying unit configured to
support a yarn supplying bobbin; and a yarn storage device configured
to unwind the yarn from the yarn supplying bobbin supported by the
yarn supplying unit and to wind the yarn unwound. The yarn storage
5 device may be provided in a position upstream of the wax applying
device in the traveling direction of the yarn. This configuration can
prevent replacement of the wax body from affecting the yarn path
between the yarn storage device and the package. When a splicing
device is not disposed in the yarn path between the yarn storage device
10 and the package, for example, the above-described effect of facilitating
replacement of the wax body while the yarn from the package is being
connected is particularly effective.
[0142] According to the present disclosure, in the wax applying device
and the yarn winding device, replacement of the wax body can be
15 prevented from affecting the yarn path.

WE CLAIM:
1. A wax applying device (70, 170, 270) configured to apply wax to a
traveling yarn (20), the wax applying device comprising:
a casing (72) including an attachment part (73, N) for attaching
5 the casing to a yarn winding device (2);
a traverse guiding portion (74) configured to guide the yarn to
be wound by a winding unit (8) of the yam winding device so that the
yam is traversed forming a traverse area (P); and
a wax support portion (76) configured to support a wax body
1 0 (W) while the wax body is positioned in at least part of the traverse area,
wherein
the traverse guiding portion is provided to the casing in a fixed
manner, and
the wax support portion is attached to the casing with a moving
15 mechanism (82, 182, 282) that is configured to be movable in a
direction separating from the traverse area.
2. The wax applying device according to claim 1, wherein the moving
mechanism moves the wax support portion in such a manner that the
wax support portion and the wax body supported by the wax support
20 portion do not pass through the traverse area.
25
3. The wax applying device according to claim 1 or 2, further
comprising a positioning portion (92) configured to be in contact with
the wax body supported by the wax support portion through the traverse
area to position the wax body with respect to the yam, wherein
the positioning portion is provided to the casing in a fixed
manner.
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4. The wax applying device according to any one of claims 1 to 3,
wherein the moving mechanism includes a rotation shaft (83) and
rotationally moves the wax support portion with respect to the casing so
that the wax support portion rotates about the rotation shaft.
5 5. The wax applying device according to any one of claims 1 to 3,
wherein the moving mechanism slidingly moves the wax support
portion with respect to the casing.
6. The wax applying device according to claim 5, wherein the moving
mechanism moves the wax support portion along an arc-shaped
10 trajectory.
7. The wax applying device according to any one of claims 1 to 6,
further comprising a locking mechanism (86) configured to restrict the
moving mechanism so that the wax support portion is not moved by a
force equal to or smaller than a predetermined force.
15 8. The wax applying device according to any one of claims 1 to 7,
wherein the moving mechanism moves the wax support portion so that
the wax body is exposed outside the casing.
9. A yarn winding device comprising the wax applying device as
claimed in any one of claims 1 to 8.
20 10. The yam winding device according to claim 9, wherein the wax
body is positioned opposite to a front side of the yam winding device
with respect to the traverse area.
25
11. The yam winding device according to claim 9 or 10, wherein
the wax applying device further comprises
an upstream regulating guide (94) provided upstream of
the wax body in a traveling direction of the yarn and configured to
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regulate a yarn path of the yarn.
12. The yarn winding device according to claim 11, wherein
the upstream regulating guide is provided at a starting point of
the traverse area, and
5 when a plane extending along a contact location between the
wax body and the traverse area is assumed to be a reference plane (S), a
bending angle (81) at which the yarn brought into the wax applying
device bends from the reference plane toward the starting point is larger
than a bending angle (82) at which the yam brought out from the wax
10 applying device bends from the reference plane toward a package (30).
13. The yam winding device according to claim 11 or 12, wherein
the wax applying device further comprises
a downstream regulating guide provided downstream of
the wax body in a traveling direction of the yam and configured to
15 regulate the yarn path of the yam, and
the upstream regulating guide and the downstream regulating
guide regulate the yarn path so that the yam path on a downstream side
is more separated from the wax body than the yarn path on an upstream
side.
20 14. The yarn winding device according to any one of claims 11 to 13,
the upstream regulating guide, when viewed from a direction along the
yam path, is formed so that a portion on a one side of the yam path,
acting as a center, in a traversing direction protrudes further outward
from the wax body than a portion on an other side of the yam path in the
25 traversing direction.
15. The yarn winding device according to any one of claims 9 to 14,
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further comprising:
a yam supplying unit (6) configured to support a yam supplying
bobbin (21); and
a yam storage device (18) configured to unwind the yam from
5 the yam supplying bobbin supported by the yam supplying unit and to
wind the yam unwound, wherein
the yam storage device is positioned in a position upstream of
the wax applying device in the traveling direction of the yam.