The present invention relates to a yarn state display
device, a yarn processing device, and a yarn state display
method each for displaying a yarn state.
10 2. Description of the Related Art
In a yarn processing device adapted to perform yarn
processing, a yarn state of a yarn to be processed is
required to be confirmed. For example, Japanese Patent
Application Laid-open No. 11-268872 describes that
15 waveform data of a yarn unevenness is displayed on a display
section. The waveform data refers to a temporal change
state of thickness of a yarn. For example, the waveform
data is displayed on a map with a horizontal axis as a length
and a vertical axis as a yarn thickness. Furthermore,
20 Japanese Patent Application Laid-open No. 11-268872
describes that an evaluation result point is displayed in
an overlapping manner with the waveform data. The
evaluation result point is, for example, a dot (mark)
indicating a state of a yarn unevenness portion displayed
25 at a corresponding position on the map. US Patent No.
6339921 describes that waveform data of a joint of a yarn
is displayed on a display section.
SUMMARY OF THE INVENTION
30 In the yarn processing device adapted to perform the
yarn processing, an operator is required to confirm a state
3 / 46
of the joint of the yarn. In a device described in Japanese
Patent Application Laid-open No. 11-268872, the state of
the joint of the yarn cannot be confirmed. In a device
described in US Patent No. 6339921, the waveform data of
the joint can be recognized. However, relating to 5 the
device described in US Patent No. 6339921, there is a demand
for capability of confirming a further state of the joint.
An object of the present invention is thus to provide
a yarn state display device, a yarn processing device, and
10 a yarn state display method capable of appropriately
confirming the joint of the yarn.
A yarn state display device according to a first
aspect of the present invention includes a generating
section, a calculating section, a display section, and a
15 display control section. The generating section is
adapted to generate waveform data from detection result
data of a yarn state of a joint by a yarn joining device.
The waveform data indicates a change state of the yarn state.
The calculating section is adapted to calculate an
20 evaluation value relating to the yarn state and a length
from the detection result data. The display control
section is adapted to display on the display section, the
evaluation value as an evaluation result point in an
overlapping manner with the waveform data.
25 A yarn state display device according to a second
aspect of the present invention includes a generating
section, a calculating section, an output section, a
display section, and a display control section. The
generating section is provided to every one of yarn
30 processing units or every plurality of the yarn processing
units and is adapted to generate waveform data from
4 / 46
detection result data of a yarn state of a joint by a yarn
joining device. The waveform data indicates a change state
of the yarn state. The calculating section is provided to
every one of the yarn processing units or every plurality
of the yarn processing units and is adapted to 5 calculate
an evaluation value relating to the yarn state and a length
from the detection result data. The output section is
provided to every one of the yarn processing units or every
plurality of the yarn processing units and is adapted to
10 output the waveform data and the evaluation value via a
communication line. The display control section is
adapted to obtain the waveform data and the evaluation value
via the communication line and to display on the display
section, the evaluation value as an evaluation result point
15 in an overlapping manner with the waveform data.
An operator can confirm the evaluation result
relating to the yarn state and the length of the joint
simultaneously with confirming the waveform data of the
joint. The operator can appropriately confirm a state of
20 the joint of the yarn.
The display control section may simultaneously
display on the display section, the evaluation result
points relating to a plurality of the joints being different
from each other in terms of time. In this case, the operator
25 can recognize a tendency of the state of the joint.
The display control section may display on the
display section, the evaluation result point corresponding
to the waveform data displayed on the display section of
a plurality of the evaluation result points simultaneously
30 displayed in distinction from other of the evaluation
result points. In this case, the operator can easily
5 / 46
recognize the evaluation result point corresponding to the
waveform data displayed on the display section.
The display control section may display on the
display section, the evaluation result point relating to
the joint that has been cut and removed as a defective 5 joint
and the evaluation result point relating to the joint not
to be cut or removed in distinction from each other. In
this case, the operator can confirm the evaluation result
point relating to the joint that has been cut and removed
10 and the evaluation result point relating to the joint not
to be cut or removed in distinction from each other in an
easy manner.
The display control section may further display on
the display section, a first clearing curve that is a
15 boundary whether or not to cut and remove the joint. In
this case, the first clearing curve, which is the boundary
whether or not to perform the cut and removal, can be
confirmed together with the evaluation result point
relating to the joint that has been cut and removed.
20 The calculating section may further calculate the
evaluation value relating to a yarn state and a length on
a normal yarn unevenness other than the joint from the
detection result data of a yarn state other than the joint.
The display control section may further display on the
25 display section, the evaluation result point relating to
the normal yarn unevenness. In this case, the operator can
simultaneously study the evaluation result point relating
to the normal yarn unevenness and the evaluation result
point relating to the joint.
30 The display control section may display on the
display section, the evaluation result point relating to
6 / 46
the normal yarn unevenness that has been cut and removed
and the evaluation result point relating to the normal yarn
unevenness not to be cut or removed in distinction from each
other. In this case, the operator can study the evaluation
result point relating to the normal yarn unevenness 5 that
has been cut and removed and the evaluation result point
relating to the normal yarn unevenness not to be cut or
removed in distinction from each other in an easy manner.
The display control section may further display on
10 the display section, a second clearing curve that is a
boundary whether or not to cut and remove the normal yarn
unevenness. In this case, the operator can easily study
the second clearing curve, which is the boundary whether
or not to perform the cut and removal, together with the
15 evaluation result point relating to the normal yarn
unevenness that has been cut and removed.
The calculating section may further calculate the
evaluation value relating to a yarn state and a length on
a normal yarn unevenness other than the joint from the
20 detection result data of the yarn state other than the joint.
The display control section may display on the display
section, the evaluation result point relating to the joint
not to be cut or removed and the evaluation result point
relating to the normal yarn unevenness not to be cut or
25 removed in distinction from each other. In this case, the
operator can study the evaluation result point relating to
the joint not to be cut or removed and the evaluation result
point relating to the normal yarn unevenness not to be cut
or removed, and can recognize a state of a yarn that has
30 been processed.
In a case where a joint is not detected during a joint
7 / 46
measuring period when calculating the evaluation value
based on the detection result data during the joint
measuring period after yarn joining has been performed by
the yarn joining device, the calculating section may
calculate as the evaluation value of the joint, 5 the
evaluation value of a portion where a yarn is thickest or
mass of the yarn is largest in the detection result data
during the joint measuring period. Accordingly, the
operator can study the evaluation result point relating to
10 the portion where the yarn is thickest or the mass of the
yarn is largest during the joint measuring period even in
the case where the joint is not detected.
The display control section may further display on
the display section, a length of the yarn after yarn joining
15 has been performed by the yarn joining device until the
joint has been detected by the calculating section. In this
case, the operator can recognize a position where the joint
exists after the joint has been cut and removed and winding
has been resumed.
20 The yarn joining device may include a splicer adapted
to connect yarn ends by airflow. In this case, the yarn
ends are twisted together by the airflow, and yarn joining
can be performed.
A yarn processing device according to a third aspect
25 of the present invention includes the above-described yarn
state display device and a plurality of yarn processing
units adapted to perform yarn processing. The generating
section is adapted to generate the waveform data based on
the detection result data on a yarn to be processed by the
30 yarn processing unit. The calculating section is adapted
to calculate the evaluation value based on the detection
8 / 46
result data on the yarn to be processed by the yarn
processing unit.
With the yarn processing device, the operator can
study the evaluation result relating to the yarn state and
the length of the joint simultaneously with studying 5 the
waveform data of the joint. Accordingly, the operator can
appropriately study the state of the joint of the yarn.
A fourth aspect of the present invention is a yarn
state display method performed by a yarn state display
10 device adapted to display a yarn state, including a
generating step, a calculating step, and a display step.
In the generating step, waveform data is generated from
detection result data of a yarn state of a joint by a yarn
joining device. The waveform data indicates a change state
15 of the yarn state. In the calculating step, an evaluation
value relating to the yarn state and a length is calculated
from the detection result data. In the display step, the
evaluation point is displayed on a display section as an
evaluation result point in an overlapping manner with the
20 waveform data.
A fifth aspect of the present invention is a yarn state
display method performed by a yarn state display device
adapted to display a yarn state, including a generating step,
a calculating step, an output step, and a display step. The
25 generating step is performed by a generating section
provided to every one of yarn processing units or every
plurality of the yarn processing units, and in the
generating step, waveform data is generated from detection
result data of a yarn state of a joint by a yarn joining
30 device. The waveform data indicates a change state of the
yarn state. The calculating step is performed by a
9 / 46
calculating section provided to every one of the yarn
processing units or every plurality of the yarn processing
units, and in the calculating step, an evaluation value
relating to the yarn state and a length is calculated from
the detection result data. The output step is perf5 ormed
by an output section provided to every one of the yarn
processing units and every plurality of the yarn processing
units, and in the output step, the waveform data and the
evaluation value are output via a communication line. The
10 display step is performed by a display control section, and
in the display step, the waveform data and the evaluation
value are obtained via the communication line, and the
evaluation value is displayed on a display section as an
evaluation result point in an overlapping manner with the
15 waveform data.
With the yarn state display methods, the operator can
study the evaluation result relating to the yarn state and
the length of the joint simultaneously with studying the
waveform data of the joint. Accordingly, the operator can
20 appropriately study the state of the joint of the yarn.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a view illustrating a schematic structure
of a spinning machine;
25 Figure 2 is a side view illustrating a spinning unit
included in the spinning machine;
Figure 3 is a block diagram illustrating a schematic
configuration of a control system of the spinning machine;
Figure 4 is a view illustrating an example of an image
30 of waveform data and evaluation result points displayed on
a display section;
10 / 46
Figure 5 is a view illustrating an example of an image
in which only evaluation result points of normal yarn
unevennesses are displayed;
Figure 6 is a view illustrating an example of an image
in which only evaluation result points of joints 5 are
displayed; and
Figure 7 is a diagram illustrating a flow of yarn state
display processing performed by a display control device.
10 DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
One embodiment of the present invention will be
hereinafter described with reference to the accompanying
drawings. The same reference numerals are used for the same
elements throughout the description of the drawings, and
15 redundant description will be omitted. In the present
description, “upstream” and “downstream” respectively
indicate upstream and downstream in a travelling direction
of a yarn at the time of spinning.
A spinning machine (a yarn processing device) 1
20 illustrated in Fig. 1 includes a plurality of spinning units
(yarn processing units) 2 arranged side by side, a yarn
joining vehicle (a yarn joining device) 3, a motor box 5,
an overall control device 50, a blower box 80, a display
control device (a display control section) 100.
25 Operations of each section of the spinning machine 1 are
controlled by the overall control device 50. The blower
box 80 accommodates an air supply source adapted to generate,
for example, suction airflow and/or whirling airflow in
each section of the spinning unit 2, and the like. The motor
30 box 5 accommodates a motor adapted to supply power to each
section of the spinning unit 2, and the like. In a factory
11 / 46
where the spinning machine 1 is installed, an operator
passage extending along an arrangement direction of the
spinning units 2 in which the spinning units 2 are arranged
is provided on a side of a yarn path of a spun yarn 10 with
respect to the yarn joining vehicle 3. An operator 5 performs
an operation, monitoring, and the like of each of the
spinning units 2 from the operator passage.
As illustrated in Figs. 1 and 2, each spinning unit
2 includes a draft device 7, a pneumatic spinning device
10 9, a yarn accumulating device 12, a waxing device 14, and
a winding device 13 in this order from upstream to
downstream.
The draft device 7 is provided in proximity to an upper
end of a housing 6 of the spinning machine 1 in a machine
15 height direction of the spinning machine 1. A fiber bundle
8 (see Fig. 2) fed from the draft device 7 is spun by the
pneumatic spinning device 9. After a spun yarn 10 fed from
the pneumatic spinning device 9 has passed a yarn monitoring
device 52, the spun yarn 10 is fed further downstream by
20 the yarn accumulating device 12 and wax is applied to the
spun yarn 10 by the waxing device 14. Then, the spun yarn
10 is wound by the winding device 13, and thereby a package
45 is formed.
The draft device 7 is adapted to produce the fiber
25 bundle 8 by drafting a sliver 15. As illustrated in Fig.
2, the draft device 7 includes four pairs of rollers, which
are a pair of back rollers 16, a pair of third rollers 17,
a pair of middle rollers 19 provided with an apron belt 18,
and a pair of front rollers 20. A bottom roller of each
30 pair of rollers 16, 17, 19, and 20 is driven by power from
the motor box 5 or a drive source (not illustrated)
12 / 46
individually provided. Each pair of rollers 16, 17, 19,
and 20 is respectively driven at rotational speeds that are
different from one another. As a result, the sliver 15
supplied from upstream is drafted into the fiber bundle 8,
and the fiber bundle 8 is fed to the pneumatic 5 spinning
device 9 located downstream.
The pneumatic spinning device 9 is adapted to add
twists to the fiber bundle 8 by use of whirling airflow to
produce the spun yarn 10. The pneumatic spinning device
10 9 includes a fiber guiding section, a whirling airflow
generating nozzle, and a hollow guide shaft body. The fiber
guiding section is adapted to guide the fiber bundle 8 fed
from the draft device 7 to a spinning chamber formed inside
the pneumatic spinning device 9. The whirling airflow
15 generating nozzle is arranged around a path of the fiber
bundle 8 and is adapted to generate the whirling airflow
in the spinning chamber. By the whirling airflow, a fiber
end of the fiber bundle 8 inside the spinning chamber 8 is
inverted and whirled. The hollow guide shaft body is
20 adapted to guide the spun yarn 10 that has been produced
from the spinning chamber to outside the pneumatic spinning
device 9.
The yarn accumulating device 12 is provided
downstream of the pneumatic spinning device 9. The yarn
25 accumulating device 12 has a drawing function, a slackening
preventing function, and a tension adjusting function.
The drawing function is a function to draw the spun yarn
10 from the pneumatic spinning device 9 by applying a
predetermined tension to the spun yarn 10. The slackening
30 preventing function is a function to prevent the spun yarn
10 from slackening by accumulating the spun yarn 10 fed from
13 / 46
the pneumatic spinning device 9, for example, at the time
of a yarn joining operation by the yarn joining vehicle 3.
The tension adjusting function is a function to adjust
tension such that variation in tension on a side of the
winding device 13 does not propagate to a side of 5 f the
pneumatic spinning device 9. As illustrated in Fig. 2, the
yarn accumulating device 12 includes a yarn accumulating
roller 21, a yarn hooking member 22, an upstream guide 23,
an electric motor 25, a downstream guide 26, and an
10 accumulation amount sensor 27.
The yarn hooking member 22 is adapted to be engaged
with the spun yarn 10 and to wind the spun yarn 10 around
an outer peripheral surface of the yarn accumulating roller
21 by rotating integrally with the yarn accumulating roller
15 21 in a state of being engaged with the spun yarn 10.
The yarn accumulating roller 21 is adapted to
accumulate the spun yarn 10 by winding a predetermined
amount of the spun yarn 10 around the outer peripheral
surface thereof. The yarn accumulating roller 21 is
20 rotationally driven by the electric motor 25. The spun yarn
10 wound around the outer peripheral surface of the yarn
accumulating roller 21 is tightly wound around the yarn
accumulating roller 21 by rotation of the yarn accumulating
roller 21, and pulls a spun yarn 10 located upstream of the
25 yarn accumulating device 12. In other words, by rotating
the yarn accumulating roller 21 at a predetermined rotation
speed with the spun yarn 10 wound around the outer
peripheral surface thereof, the yarn accumulating device
12 draws the spun yarn 10 from the pneumatic spinning device
30 9 at a predetermined speed by applying the predetermined
tension to the spun yarn 10, and transports the spun yarn
14 / 46
10 to downstream at a predetermined speed.
The accumulation amount sensor 27 is adapted to
detect in a non-contact manner, an accumulation amount of
the spun yarn 10 wound around the yarn accumulating roller
21. The accumulation amount sensor 27 outputs 5 ts an
accumulation amount signal indicating a detected
accumulation amount of the spun yarn 10 to the overall
control device 50.
The upstream guide 23 is arranged slightly upstream
10 of the yarn accumulating roller 21. The upstream guide 23
is adapted to appropriately guide the spun yarn 10 to the
outer peripheral surface of the yarn accumulating roller
21. The upstream guide 23 prevents twists of the spun yarn
10 that propagate from the pneumatic spinning device 9 from
15 propagating to downstream of the upstream guide 23.
The yarn monitoring device 52 is provided at a
position on a front side of the housing 6 of the spinning
machine 1 (a side of the operator passage) and between the
pneumatic spinning device 9 and the yarn accumulating
20 device 12. The spun yarn 10 spun by the pneumatic spinning
device 9 passes the yarn monitoring device 52 before being
wound by the yarn accumulating device 12. The yarn
monitoring device 52 is adapted to detect a yarn state of
the spun yarn 10. Furthermore, the yarn monitoring device
25 52 can detect a foreign substance included in the spun yarn
10.
A cutter 57 adapted to cut the spun yarn 10 upon
detection of a yarn defect is arranged upstream of the yarn
monitoring device 52. The cutter 57 may be omitted, and
30 the spun yarn 10 may be cut by stopping supply of air to
the pneumatic spinning device 9.
15 / 46
The waxing device 14 is provided downstream of the
yarn accumulating device 12. The waxing device 14 is
adapted to apply wax to the spun yarn 10 travelling from
the yarn accumulating device 12 to the winding device 13.
The winding device 13 includes a 5 package holding
section 71, a winding drum 72, and a traverse device 75.
The package holding section 71 is a portion where the
package 45 is rotatably held, and includes a fixed portion
71a fixed to the housing 6 and a swinging portion 71b capable
10 of swinging forward and backward with respect to the fixed
portion 71a. The swinging portion 71b is supported
swingably about a shaft 70 in the fixed portion 71a. The
swinging portion 71b is provided with a bobbin holder (not
illustrated) adapted to rotatably hold a bobbin 48 around
15 which the spun yarn 10 is wound.
The winding drum 72 is adapted to make contact with
an outer peripheral surface of the bobbin 48 or an outer
peripheral surface of the package 45 and to rotationally
drive the package 45. The traverse device 75 is provided
20 with a traverse guide 76 capable of being engaged with the
spun yarn 10. By driving the winding drum 72 with an
electric motor (not illustrated) while reciprocating the
traverse guide 76 with a drive means (not illustrated), the
winding device 13 rotates the package 45 being in contact
25 with the winding drum 72 while traversing the spun yarn 10,
and thus winds the spun yarn 10 around the package 45. The
traverse guide 76 of the traverse device 75 is commonly
driven in each spinning unit 2 by a shaft provided in common
to the plurality of spinning units 2.
30 Next, the yarn joining vehicle 3 will be described.
As illustrated in Figs. 1 and 2, the yarn joining vehicle
16 / 46
3 is adapted to travel by wheels 42 on a rail 41 along the
arrangement direction of the spinning units 2 in a lower
portion of the housing 6 in which the draft device 7, the
pneumatic spinning device 9, and the like are arranged. The
yarn joining vehicle 3 includes a splicer 43, a suction 5 pipe
44, a suction mouth 46, and a yarn monitoring device 47.
After a yarn breakage or a yarn cut has occurred in
a certain spinning unit 2, the yarn joining vehicle 3
travels to such a spinning unit 2 along the rail 41, and
10 stops. The suction pipe 44 sucks and catches a yarn end
fed from the pneumatic spinning device 9 and guides the
caught yarn end to the splicer 43 while vertically swinging
with an axis as a center. The suction mouth 46 sucks and
catches a yarn end from the package 45 supported by the
15 winding device 13 and guides the caught yarn end to the
splicer 43 while vertically swinging with an axis as a
center. The splicer 43 joins the guided yarn ends together
by airflow. More specifically, the splicer 43 untwists
both yarn ends by the airflow, overlaps the yarn ends after
20 being untwisted, and then joins both yarn ends by twisting
in this state with the whirling airflow.
The yarn monitoring device 47 is adapted to detect
a yarn state of the spun yarn 10 after the yarn joining is
performed by the splicer 43. That is, the yarn monitoring
25 device 47 is located downstream of the splicer 43.
Next, a control system of the spinning machine 1 will
be described. As illustrated in Fig. 3, the overall control
device 50 is adapted to issue an instruction to a unit
controller 29, a yarn joining vehicle controller 49, a
30 blower controller 89, and the like based on a detection
result of a yarn monitoring device 52 and the like to control
17 / 46
each section of the spinning machine 1. An input section
55 and a display section 56 are connected to the overall
control device 50. The overall control device 50 displays,
for example, an operation state of the spinning unit 2 on
the display section 56. The overall control device 5 ice 50
changes, for example, a setting such as an operation of the
spinning unit 2 based on an input operation to the input
section 55 by the operator. The overall control device 50
is provided in the motor box 5, as an example. The input
10 section 55 and the display section 56 are mounted to a side
surface of the motor box 5, as an example.
The overall control device 50 is connected to the unit
controller 29, the yarn joining vehicle controller 49, and
the blower controller 89 by a communication line L1. Data
15 communication is performed between the overall control
device 50 and the unit controller 29, the yarn joining
vehicle controller 49, and the blower controller 89 via the
communication line L1.
The yarn joining vehicle controller 49 is adapted to
20 control travelling, yarn joining, and the like of the yarn
joining vehicle 3 based on the instruction from the overall
control device 50. The yarn joining vehicle controller 49
is provided to the yarn joining vehicle 3, for example. The
blower controller 89 is adapted to control a blower (a
25 suction airflow generating source) and the like provided
in the blower box 80 based on the instruction from the
overall control device 50. The blower controller 89 is
provided in the blower box 80, for example.
The plurality of spinning units 2 are separated into
30 groups by a plurality of the spinning units 2 (four units,
eight units, or the like, for example). The unit controller
18 / 46
29 is provided to every group G consisting of the plurality
of spinning units 2. The unit controller 29 is adapted to
control each of the plurality of spinning units 2 in the
group G under control thereof based on the instruction from
the overall control device 50. The unit controller 5 29 is
provided, for example, in proximity to the spinning units
2 under control thereof. The unit controller 29 is
connected to the yarn monitoring device 52 provided to each
of the plurality of spinning units 2 in the group G under
10 control thereof by a communication line L2. Data
communication is performed between the unit controller 29
and the yarn monitoring devices 52 via the communication
line L2. The unit controller 29 may be provided to each
of the spinning units 2 without separating the spinning
15 units 2 into groups.
Each of a plurality of the yarn monitoring devices
52 provided to the spinning machine 1 and a display control
device 100 are connected by the communication line L2. Data
communication is performed between the display control
20 device 100 and the plurality of yarn monitoring devices 52
via the communication line L2.
The yarn monitoring device 52 provided to each
spinning unit 2 includes a detecting section 52a and a yarn
monitoring control section 52b. The detecting section 52a
25 is adapted to detect a temporal change in thickness of the
spun yarn 10 spun by the pneumatic spinning device 9. The
detecting section 52a is adapted to output a detected result
as detection result data to the yarn monitoring control
section 52b. The detection result data is, for example,
30 an analogue signal that temporally changes in accordance
with the thickness of the spun yarn 10.
19 / 46
In the present embodiment, an optical monitoring
device adapted to irradiate the spun yarn 10 with light and
to detect a temporal change state in yarn thickness by a
change in an amount of received light is employed as the
detecting section 52a. A capacitance 5 ance monitoring device
adapted to cause the spun yarn 10 to pass through an electric
field and to detect a temporal change state in mass of a
yarn by a change in capacitance may also be employed as the
detecting section 52a. In this case, the detecting section
10 52a detects a temporal change in mass of the spun yarn 10.
The yarn monitoring control section 52b includes a
calculating section 522 and an output section 523. The
calculating section 522 is adapted to calculate
distribution data (an evaluation value) relating to
15 thickness and length of a yarn unevenness included in the
spun yarn 10 based on detection result data input from the
detecting section 52a. As an example, the calculating
section 522 first converts the detection result data, which
is an analogue signal, to a digital signal. The calculating
20 section 522 calculates the distribution data based on a
result of sampling the converted detection result data for
every predetermined length (every 1 mm, for example) of the
spun yarn 10. A yarn unevenness to be calculated as the
distribution data by the calculating section 522 is
25 referred to as a “normal yarn unevenness” to distinguish
from a yarn unevenness relating to a joint, which is to be
described later.
The output section 523 is adapted to output the
distribution data to the display control device 100. The
30 output section 523 may also output the distribution data
to the overall control device 50 in addition to the display
20 / 46
control device 100. The normal yarn unevenness includes
a normal yarn unevenness that has been cut and removed, and
a remaining normal yarn unevenness not to be cut or removed.
In a case where the normal yarn unevenness to be cut and
removed has been detected by the calculating section 5 522,
and then the normal yarn unevenness has been cut and removed
by the cutter 57, the output section 523 outputs
distribution data of the normal yarn unevenness that has
been cut and removed to the display control device 100.
10 Regarding distribution data of the normal yarn unevenness
not to be cut or removed, the output section 523 outputs
the distribution data of such a normal yarn unevenness to
the display control device 100 when a predetermined amount
of data is accumulated.
15 The yarn monitoring control section 52b may generate
waveform data indicating the temporal change state in the
thickness of the normal yarn unevenness based on the
detection result data input from the detecting section 52a.
In this case, the output section 523 outputs the waveform
20 data to the display control device 100. The output section
523 may also output the waveform data to the overall control
device 50 in addition to the display control device 100.
The overall control device 50 or the display control device
100 may display the waveform data of the normal yarn
25 unevenness on the display section 56 or 120.
The yarn monitoring device 47 provided to the yarn
joining vehicle 3 and the display control device 100 are
connected by a communication line L3. Data communication
is performed between the display control device 100 and the
30 yarn monitoring device 47 via the communication line L3.
The yarn monitoring device 47 provided to the yarn
21 / 46
joining vehicle 3 includes a detecting section 47a and a
yarn monitoring control section 47b. The detecting
section 47a is adapted to detect a temporal change in the
thickness of the spun yarn 10 during a joint measuring
period after the yarn joining has been performed by 5 the
splicer 43. This detection result includes a detection
result of a joint where yarn joining has been performed by
the splicer 43. In other words, the detecting section 47a
is capable of detecting a temporal change in thickness of
10 a joint of the spun yarn 10 to which the yarn joining has
been performed by the splicer 43. The detecting section
47a outputs a detected result as detection result data to
the yarn monitoring control section 47b. The detection
result data is, for example, an analogue signal that
15 temporally changes in accordance with the thickness of the
spun yarn 10. The joint measuring period is a period of
time after the yarn joining has been performed by the
splicer 43 until a predetermined length (about 60 cm, for
example) of the spun yarn 10 is wound around the package
20 45.
In the present embodiment, an optical monitoring
device adapted to irradiate the joint of the spun yarn 10
with light and to detect a temporal change state in yarn
thickness by a change in an amount of received light is
25 employed as the detecting section 47a. A capacitance
monitoring device adapted to cause the joint of the spun
yarn 10 to pass through an electric field and to detect a
temporal change state in mass of a yarn by a change in
capacitance may be also employed as the detecting section
30 47a. In this case, the detecting section 47a detects a
temporal change in mass of the joint.
22 / 46
The yarn monitoring control section 47b includes a
generating section 471, a calculating section 472, an
output section 473. The generating section 471 is adapted
to generate waveform data indicating the temporal change
state in the thickness of the joint based on the 5 detection
result data input from the detecting section 47a. As an
example, the generating section 471 first converts the
detection result data, which is an analogue signal, to a
digital signal. The generating section 471 generates
10 waveform data of the joint by sampling the converted
detection result data for every predetermined length (every
1 mm, for example) of the spun yarn 10.
The calculating section 472 is adapted to calculate
distribution data (an evaluation value) relating to
15 thickness and length of the joint based on the detection
result data input from the detecting section 47a. As an
example, the calculating section 472 first converts the
detection result data, which is an analogue signal, to a
digital signal. The calculating section 472 calculates
20 the distribution data based on the result of sampling the
converted detection result data for every predetermined
length (for example, every 1 mm) of the spun yarn 10. For
example, the calculating section 472 detects as the joint,
a portion where the thickness of the spun yarn 10 exceeds
25 a preset value. The calculating section 472 may calculate
the distribution data based on the waveform data generated
based on the detection result data. Even in this case, the
calculating section 472 calculates the distribution data
based on the detection result data.
30 The output section 473 outputs the distribution data
of the joint to the display control device 100. The output
23 / 46
section 473 may also output the distribution data of the
joint to the overall control device 50 in addition to the
display control device 100. The joint includes a joint that
has been cut and removed as a defective joint and a joint
as a normal joint not to be cut or removed. The joint t5 hat
has been cut and removed has a defective state of a joint
in which the yarn joining operation has been performed by
the splicer 43, and is a joint that requires to be cut and
removed. In a case where a joint to be cut and removed has
10 been detected by the calculating section 472, and then the
yarn joining has been performed again after the joint has
been cut and removed, the output section 473 outputs the
distribution data of the joint that has been cut and removed
to the display control device 100. Regarding distribution
15 data of the joint not to be cut or removed, the output section
473 outputs the distribution data of such a joint to the
display control device 100 when a predetermined amount of
data is accumulated.
The output section 473 outputs the waveform data of
20 the joint generated by the generating section 471 to the
display control device 100 every time when a joint is
detected.
In such a manner, the display control device 100
obtains the distribution data relating to the length and
25 the thickness of the normal yarn unevenness included in the
spun yarn 10 from the yarn monitoring control section 52b
of the yarn monitoring device 52 provided to each spinning
unit 2. Furthermore, the display control device 100
obtains the distribution data relating to the thickness and
30 the length of the joint included in the spun yarn 10 and
the waveform data of the joint from the yarn monitoring
24 / 46
control section 47b of the yarn monitoring device 47. As
described above, the distribution data of the joint
obtained by the display control device 100 includes not only
the distribution data of the joint that has been cut and
removed, but also the distribution data of the joint 5 not
to be cut or removed. Furthermore, as described above, the
distribution data of the normal yarn unevenness obtained
by the display control device 100 includes not only the
distribution data of the normal yarn unevenness that has
10 been cut and removed, but also the distribution data of the
remaining normal yarn unevenness.
An input section 110 and a display section 120 are
further connected to the display control device 100. The
display control device 100 is provided in the motor box 5,
15 for example. The input section 110 and the display section
120 are mounted to a side surface of the motor box 5, for
example. The display control device 100 displays on the
display section 120, for example, the waveform data of the
joint obtained from the yarn monitoring control section 47b.
20 An example of an image displayed on the display section 120
by the display control device 100 will be hereinafter
described.
The display control device 100 first generates a
two-dimensional field A illustrated in Fig. 4. The
25 two-dimensional field A displays a yarn unevenness as a dot
on a coordinate with length of the yarn unevenness as a
horizontal axis and thickness of the yarn unevenness as a
vertical axis. The vertical axis is a ratio of a thickness
with respect to a reference yarn thickness. The display
30 control device 100 determines a position of a dot on the
two-dimensional field A based on the thickness and the
25 / 46
length indicated by the distribution data of the normal yarn
unevenness and the joint. A dot displayed on the
two-dimensional field A based on the distribution data will
be hereinafter referred to as an evaluation result point.
The operator inputs via the input section 5 110,
information of the spinning unit 2 for which the evaluation
result point and the like are displayed on the display
section 120. The display control device 100 displays on
the display section 120, the evaluation result point on the
10 spun yarn 10 produced by the input spinning unit 2.
As illustrated in Fig. 4, the display control device
100 displays on the display section 120, the
two-dimensional field A with the evaluation result points
added thereto. In Fig. 4, the evaluation result points of
15 the normal yarn unevennesses that have been cut and removed
are indicated by white squares, and the evaluation result
points of the remaining normal yarn unevennesses not to be
cut or removed are indicated by black squares. Furthermore,
in Fig. 4, the evaluation result points of the joints that
20 have been cut and removed as defective joints are indicated
by white circles, and the evaluation result points of the
joints as normal joints not to be cut or removed are
indicated by black circles.
To make understanding of Fig. 4 easier, an example
25 of an image displaying only the evaluation result points
(the white squares) of the normal yarn unevennesses that
have been cut and removed and the evaluation result points
(the black squares) of the remaining normal yarn
unevennesses not to be cut or removed are illustrated in
30 Fig. 5 as a reference. Furthermore, an example of an image
displaying only the evaluation result points (the white
26 / 46
circles) of the joints that have been cut and removed as
defective joints and the evaluation result points (the
black circles) of the joints as the normal joints not to
be cut or removed are illustrated in Fig. 6.
In the present embodiment, the normal yarn 5 unevenness
that has been cut and removed, the remaining normal yarn
unevenness not to be cut or removed, the joint that has been
cut and removed as a defective joint, and the joint as a
normal joint not to be cut or removed are distinguished by
10 the white and black squares and the white and black circles.
However, if a distinction can be made from one another, the
display may be made by another method. For example, the
display may be made with a changed color or as a display
mode other than color, a mark of the evaluation result point
15 may be lighted or blinked, a size of the mark may be changed,
or a pattern of the mark may be changed.
The display control device 100 adds to the
two-dimensional field A, the evaluation result points
relating to a plurality of the joints that are different
20 from one another in terms of time, and simultaneously
displays a plurality of the evaluation result points on the
display section 120. Similarly, the display control
device 100 adds to the two-dimensional field A, the
evaluation result points relating the normal yarn
25 unevennesses that are different from one another in terms
of time, and simultaneously displays a plurality of the
evaluation result points on the display section 120. The
display control device 100 stores the distribution data
obtained from the yarn monitoring control sections 47b and
30 52b for only a predetermined amount or for only a
predetermined length of the spun yarn 10 to display the
27 / 46
evaluation result points of the plurality of joints and the
plurality of normal yarn unevennesses on the display
section 120.
The display control device 100 may change a type of
the evaluation result point to be displayed on the 5 display
section 120 based on an input operation to the input section
110 by the operator. For example, the display control
device 100 may display on the display section 120 as the
evaluation result points, only the evaluation result point
10 of the remaining normal yarn unevenness not to be cut or
removed and the evaluation result point of the joint as the
normal joint not to be cut or removed.
As illustrated in Fig. 4, the display control device
100 displays on the display section 120 in an overlapping
15 manner with the two-dimensional field A, waveform data D
of a newest joint that has been detected. Without limited
to the waveform data D of the newest joint, the display
control device 100 may display past waveform data in the
overlapping manner with the two-dimensional field A based
20 on the input operation to the input section 110 by the
operator. In a case of displaying the past waveform data,
the input section 110 stores the waveform data obtained from
the yarn monitoring control section 47b for only a
predetermined amount or for only a predetermined length of
25 the spun yarn 10.
Furthermore, the display control device 100 may cut
out waveform data of a joint portion determined based on
thickness or the like and waveform data for a predetermined
length before and after the joint portion, from the waveform
30 data of the joint input from the yarn monitoring control
section 47b to display on the display section 120. In an
28 / 46
example illustrated in Fig. 4, waveform data D for 8 cm
including the joint portion is displayed on the display
section 120.
The display control device 100 displays on the
display section 120 in distinction from other 5 evaluation
result points, an evaluation result point corresponding to
the waveform data displayed on the display section 120 of
the evaluation result points of the joints that have been
cut and removed. In the present embodiment, as illustrated
10 in Fig. 4, an evaluation result point P of the joint that
has been cut and removed corresponding to the displayed
waveform data is indicated by a white star mark. When the
operator operates the input section 110 and changes the
waveform data to be displayed on the display section 120,
15 the display control device 100 may display the evaluation
result point P corresponding to the displayed waveform data
with the white star mark. As long as the evaluation result
point P can be distinguished from the other evaluation
result points, the evaluation result point P may be
20 displayed in another manner without being limited to the
display with the white star mark.
The display control device 100 displays on the
display section 120, a condition whether or not to cut and
remove the joint. Specifically, the display control
25 device 100 displays on the display section 120 in an
overlapping manner with the two-dimensional field A, a
first clearing curve B as the condition whether or not to
cut and remove the joint (see Figs. 4 and 6). The first
clearing curve B is a boundary whether or not to cut and
30 remove the joint. The evaluation result points of joints
located on a side of a reference thickness (a horizontal
29 / 46
axis indicating that the yarn thickness is 100 %) of the
spun yarn 10 with respect to the first clearing curve B are
the joints (the black circles) not to be cut or removed,
and the evaluation result points of joints located on a side
away from the reference thickness (the horizontal 5 l axis
indicating that the yarn thickness is 100 %) of the spun
yarn 10 with respect to the first clearing curve B are the
joints (the white circles) to be cut and removed.
The display control device 100 displays on the
10 display section 120, a condition whether or not to cut and
remove the normal yarn unevenness. Specifically, the
display control device 100 displays on the display section
120 in an overlapping manner with the two-dimensional field
A, a second clearing curve C as the condition whether or
15 not to cut and remove the normal yarn unevenness (see Figs.
4 and 5). The second clearing curve C is a boundary whether
or not to cut and remove the normal yarn unevenness. The
evaluation result points of normal yarn unevennesses
located on a side of the reference thickness (the horizontal
20 axis indicating that the yarn thickness is 100 %) of the
spun yarn 10 with respect to the second clearing curve C
are the normal yarn unevennesses (the black squares) not
to be cut or removed, and the evaluation result points of
normal yarn unevennesses located on a side away from the
25 reference thickness (the horizontal axis indicating that
the yarn thickness is 100 %) of the spun yarn 10 with respect
to the second clearing curve C are the normal yarn
unevennesses (the white squares) to be cut and removed.
The display control device 100 may switch on/off
30 display of the first clearing curve B and the second
clearing curve C based on an input operation to the input
30 / 46
section 110 by the operator.
In the two-dimensional field A, the evaluation result
point of the normal yarn unevenness is not displayed in a
region R in proximity to the reference thickness (the
horizontal axis indicating that the yarn thickness is 100 5 0 %)
of the spun yarn 10 (see Figs. 4 and 5). In Figs. 4 through
6, the region R is hatched. Such a hatching is made, as
an example, to prevent the number of the displayed
evaluation result points from being large since most of the
10 evaluation result points of the normal yarn unevennesses
not to be cut or removed are located in the region R.
However, since the evaluation result points of the joints
(black circles) are lesser in number than the evaluation
result points of the normal yarn unevennesses, the
15 evaluation result points of the joints are displayed even
in the region R (see Figs. 4 and 6).
As illustrated in a display space S of Fig. 4, the
display control device 100 displays information relating
to the normal yarn unevenness and information relating to
20 the joint on the display section 120. Specifically, as the
information relating to the normal yarn unevenness, a
thickness (“120 %” in the example of Fig. 4) of the normal
yarn unevenness and a length (“20 mm” in the example of Fig.
4) of the normal yarn unevenness are displayed. In the
25 display space S, information on a newest yarn unevenness
of a detected plurality of the normal yarn unevennesses is
displayed. When a new normal yarn unevenness is detected,
the information relating to the normal yarn unevenness in
the display space S is updated. As the information relating
30 to the joint, a thickness (“135 %” in the example of Fig.
4) of the joint, a length (“38 mm” in the example of Fig.
31 / 46
4) of the joint, and a length (“20 cm” in the example of
Fig. 4) of the spun yarn 10 wound around the package 45 after
the yarn joining has been performed until a joint is
detected are displayed. The information relating to the
joint that is displayed in the display space S 5 is
information relating to the joint (the joint corresponding
to the evaluation result point P) corresponding to the
waveform data displayed on the display section 120. When
a new joint is detected, information relating to the joint
10 in the display space S is updated. In Fig. 4, the display
space S is displayed in an upper-right region of a display
screen of the display section 120 as an example, but a
position to display the display space S is not limited
thereto.
15 When a joint is detected by the calculating section
472, as illustrated in Fig. 4, the evaluation result point
of the detected joint and the waveform data of the joint
are displayed on the display section 120 in an overlapping
manner with the two-dimensional field A. The evaluation
20 result point of a past detected joint and the evaluation
result point of a past detected normal yarn unevenness are
also displayed in the overlapping manner with the
two-dimensional field A. Furthermore, the first clearing
curve B and the second clearing curve C are displayed in
25 the overlapping manner with the two-dimensional field A.
The operator can easily recognize a shape of the joint
in a visual manner by studying the waveform data of the joint
and the evaluation result point of the joint displayed on
the display section 120. Accordingly, the operator can use
30 the recognized shape of the joint as a reference when
adjusting the splicer 43 of the yarn joining vehicle 3. For
32 / 46
example, in a case where both end portions of a joint are
thick or in a case where an average thickness of a joint
is thick, each section of the splicer 43 is adjusted such
that a shape of the joint becomes normal. Furthermore, the
operator can recognize a tendency of a state of the 5 joint
by studying the evaluation result points of the plurality
of joints. The operator can adjust the splicer 43 based
on the recognized tendency of the joint.
The above-described yarn monitoring control
10 sections 47b and 52b, and the display control device 100
are physically configured by a computer including a CPU
(Central Processing Unit), an ROM (Read only Memory), and
an RAM (Random Access Memory), for example.
As described above, the detecting sections 47a and
15 52a, the yarn monitoring control sections 47b and 52b, the
display control device 100, and the display section 120
configure a yarn state display device adapted to, for
example, display the waveform data and the evaluation
result point of the joint in an overlapping manner.
20 Next, a flow of processing (a yarn state display
method) to display the evaluation result point, the
waveform data, and the like of the joint on the display
section 120 by the display control device 100 will be
described. As illustrated in Fig. 7, the generating
25 section 471 of the yarn monitoring control section 47b
generates the waveform data of the joint based on the
detection result data of the detecting section 47a (step
S101: generating step). The calculating section 522 of the
yarn monitoring control section 52b calculates the
30 distribution data of the normal yarn unevenness included
in the spun yarn 10 based on the detection result data of
33 / 46
the detecting section 52a. The calculating section 472 of
the yarn monitoring control section 47b calculates the
distribution data of the joint included in the spun yarn
10 based on the detection result data of the detecting
section 47a (step S102: a calculating 5 step).
The output section 523 of the yarn monitoring control
section 52b outputs the distribution data to the display
control device 100. The output section 473 of the yarn
monitoring control section 47b outputs the waveform data
10 and the distribution data to the display control device 100
(step S103: output step). The display control device 100
displays on the display section 120, the evaluation result
points of the joint and the normal yarn unevenness, and the
waveform data of the joint in an overlapping manner with
15 the two-dimensional field A. Furthermore, the display
control device 100 displays the information relating to the
normal yarn unevenness and the joint in the display space
S (step S104: displaying step).
The present embodiment is configured as described
20 above, and the display control device 100 displays the
evaluation result point of the joint on the display section
120 in an overlapping manner with the waveform data of the
joint. Accordingly, the operator can confirm the
evaluation result of the joint simultaneously with
25 confirming the waveform data of the joint. In such a manner,
the operator can appropriately confirm the state of the
joint of the spun yarn 10. The operator thus can more
appropriately adjust the splicer 43 of the yarn joining
vehicle 43, for example, based on the state of the joint
30 of the spun yarn 10.
The display control device 100 simultaneously
34 / 46
displays on the display section 120, the evaluation result
points relating to the plurality of joints that are
different from one another in terms of time. For example,
a shape of the state of the joint is fixed to some degree
by a setting of the splicer 43 of the yarn joining 5 vehicle
3, and the like. However, since there is a certain degree
of variation in the state of the joint, a wrong
determination may be made if the state of the joint is
determined only with the waveform data and the evaluation
10 result point of one joint. Thus, by displaying the
evaluation result points relating to the plurality of
joints, the operator can recognize the tendency of the state
of the joint based on the plurality of evaluation result
points.
15 The display control device 100 displays on the
display section 120 in distinction from another evaluation
result point, the evaluation result point (the evaluation
result point P (the white star mark) in Fig. 4)
corresponding to the waveform data D displayed on the
20 display section 120 of the plurality of evaluation result
points of the joints simultaneously displayed. In this
case, the operator can easily recognize the evaluation
result point of the joint corresponding to the waveform data
D displayed on the display section 120.
25 The display control device 100 may display on the
display section 120, the evaluation result point (the white
circle in Fig. 4) relating to the joint that has been cut
and removed as a defective joint and the evaluation result
point (the black circle in Fig. 4) relating to the joint
30 not to be cut or removed in distinction from each other.
In this case, the operator can recognize the evaluation
35 / 46
result point relating to the joint that has been cut and
removed and the evaluation result point relating to the
joint not to be cut or removed in distinction from each other
in an easy manner.
The display control device 100 further 5 her displays the
first clearing curve B, which is the boundary whether or
not to cut and remove the joint, on the display section 120.
In this case, the first clearing curve B, which is the
boundary whether or not to perform the cut and removal, can
10 be studied together with the evaluation result point
relating to the joint that has been cut and removed.
The calculating section 522 of the yarn
monitoring control section 52b calculates the distribution
data on the normal yarn unevenness. In addition to the
15 evaluation result point of the joint, the display control
device 100 also displays on the display section 120, the
evaluation result point of the normal yarn unevenness based
on the distribution data of the normal yarn unevenness. In
this case, the operator can simultaneously study the
20 evaluation result point relating to the normal yarn
unevenness and the evaluation result point relating to the
joint.
The display control device 100 displays on the
display section 120, the evaluation result point (the white
25 square in Fig. 4) relating to the normal yarn unevenness
that has been cut and removed and the evaluation result
point (the black square in Fig. 4) relating to the normal
yarn unevenness not to be cut or removed in distinction from
each other. In this case, the operator can study the
30 evaluation result point relating to the normal yarn
unevenness that has been cut and removed and the evaluation
36 / 46
result point relating to the normal yarn unevenness not to
be cut or removed in distinction from each other in an easy
manner.
The display control device 100 further displays the
second clearing curve C, which is the boundary whether 5 her or
not to cut and remove the normal yarn unevenness, on the
display section 120. In this case, the operator can confirm
the second clearing curve C, which is the boundary whether
or not to perform the cut and removal, together with the
10 evaluation result point relating to the normal yarn
unevenness that has been cut and removed.
For example, the display control device 100 may
distinguish the evaluation result point (the black circle
in Fig. 4) relating to the joint not to be cut or removed
15 and the evaluation result point (the black square in Fig.
4) relating to the normal yarn unevenness not to be cut or
removed from each other, and display only those evaluation
result points and the waveform data of the joint on the
display section 120. In this case, the operator can confirm
20 the evaluation result point relating to the joint not to
be cut or removed and the evaluation result point relating
to the normal yarn unevenness not to be cut or removed and
recognize a state of the produced spun yarn 10.
The display control device 100 displays on the
25 display section 120, the length of the spun yarn 10 wound
around the package 45 after the yarn joining has been
performed by the splicer 43 until a joint is detected. In
this case, the operator can recognize a position where the
joint exists after the joint has been cut and removed and
30 then the winding has been resumed. Since a position of the
yarn monitoring device 47 with respect to the splicer 43
37 / 46
is fixed, a length after the joint has been cut and removed
and then the winding has been resumed until the joint is
detected is substantially fixed.
Since the yarn monitoring control section 52b of the
yarn monitoring device 52 provided to each spinning 5 unit
2 and the yarn monitoring control section 47b of the yarn
monitoring device 47 provided to the yarn joining vehicle
3 calculate the distribution data, the display control
device 100 is not required to calculate the distribution
10 data, and thereby burden on the display control device 100
can be reduced.
One embodiment of the present invention has been
described, but the present invention is not limited to the
above-described embodiment. For example, in a case where
15 a joint is not detected during the joint measuring period
after the yarn joining operation has been performed by the
yarn joining vehicle 3, the calculating section 472 of the
yarn monitoring control section 47b may calculate as the
distribution data of the joint, the distribution data on
20 a thickest portion of a yarn of the detection result data
input from the detecting section 47a during the joint
measuring period. In this case, the display control device
100 displays on the display section 120, the evaluation
result point on the thickest portion of the yarn calculated
25 as the distribution data of the joint and the waveform data
of the thickest portion of the yarn. Accordingly, the
operator can study the evaluation result point and the
waveform data relating to the thickest portion of the yarn
during the joint measuring period even in the case where
30 a joint is not detected. In a case of employing the
capacitance monitoring device as the detecting section 47a,
38 / 46
the yarn monitoring control section 47b calculates the
distribution data of a portion where mass of a yarn is
largest as the distribution data of the joint.
When displaying as the joint, the evaluation result
point and the like of the thickest portion of the yarn 5 arn of
the detection result data input during the joint measuring
period, the display control device 100 may display
information relating to such a joint in the display space
S. In this case, the operator can recognize the waveform
10 data D displayed on the display section 120 is waveform data
of which position after winding of the spun yarn 10 has been
resumed.
For example, as described above, the length after the
joint has been cut and removed and then the winding has been
15 resumed until a joint is detected is substantially fixed.
In the case where the thickest portion of the yarn of the
detection result data input during the joint measuring
period is calculated as the joint, a length until the
thickest portion of the yarn is detected is different from
20 a length until another joint is detected in some cases.
Therefore, by checking whether or not a length until a joint
is detected is different from a previous length, the
operator can recognize a possibility that various types of
information of the joint displayed on the display section
25 120 is information on the thickest portion determined as
the joint.
The calculating sections 472 and 522 respectively
provided to the yarn monitoring devices 47 and 52 are
adapted to calculate the distribution data, but the
30 calculating sections 472 and 522 adapted to calculate the
distribution data may be provided in the display control
39 / 46
device 100. Furthermore, the generating section 471 is
adapted to generate the waveform data, but the generating
section 471 adapted to generate the waveform data may be
provided in the display control device 100.
The yarn monitoring control section 52b of the 5 yarn
monitoring device 52 is provided to each spinning unit 2,
but is not limited to being provided to each spinning unit
2. For example, the yarn monitoring control section 52b
may be provided to each group of a plurality of the spinning
10 units 2, in other words, the yarn monitoring control section
52b may be commonly provided to the plurality of spinning
units 2.
The yarn monitoring device 47 adapted to detect
the joint is provided to the yarn joining vehicle 3, but
15 the yarn monitoring device 47 may be provided to each
spinning unit 2 at a position downstream of the splicer 43.
In this case, the splicer 43 (the yarn joining device) may
be provided to each spinning unit 2. In a case where the
splicer 43 is provided to each spinning unit 2, the joining
20 vehicle 3 may be omitted. In a case where the yarn
monitoring device 47 is provided to each spinning unit 2,
the joint and the normal yarn unevenness may be detected
by the yarn monitoring device 47. In this case, the
generating section 471 of the yarn monitoring device 47
25 generates the waveform data of the joint, and the
calculating section 472 calculates the distribution data
of the joint and the normal yarn unevenness. Furthermore,
in the case where the yarn monitoring device 47 is provided
to each spinning unit 2, the yarn monitoring control section
30 47b of the yarn monitoring device 47 is not required to be
provided to each spinning unit 2. For example, the yarn
40 / 46
monitoring control section 47b may be provided to each group
of a plurality of the spinning units 2, in other words, the
yarn monitoring control section 47b may be commonly
provided to the plurality of spinning units 2. In this case,
the output section 473 of the yarn monitoring 5 control
section 47b provided to each spinning unit 2 or the output
section 473 of the yarn monitoring control section 47b
provided to each group formed by the plurality of spinning
units 2 output the waveform data and the distribution data
10 to the display control device 100 via a communication line.
In a case where the yarn monitoring device 47 is provided
to each spinning unit 2, the yarn monitoring device 47 for
the joint and the yarn monitoring device 52 for the normal
yarn unevenness can be separately provided to each spinning
15 unit 2.
The display control device 100 is adapted to display
on the display section 120, the waveform data and the
evaluation result point, and the like of the joint of the
spun yarn 10 produced by the spinning unit 2, but the
20 waveform data, the evaluation result point, and the like
of a yarn processed by a yarn processing device other than
the spinning machine 1 may be displayed. For example, the
waveform data, the evaluation result point, and the like
can be displayed by use of the above-described display
25 control device 100 in a device adapted to perform yarn
joining such as an automatic winder adapted to wind a yarn,
an open-end spinning machine, a ring spinning machine, and
the like.

We claim:-
1. A yarn state display device comprising;
a generating section adapted to generate waveform
data from a detection result data on a yarn state of a joint
by a yarn joining device, the waveform data indicating 5 a
change state of the yarn state;
a calculating section adapted to calculate an
evaluation value relating to the yarn state and a length
from the detection result data;
10 a display section; and
a display control section adapted to display on the
display section, the evaluation value as an evaluation
result point in an overlapping manner with the waveform
data.
15
2. A yarn state display device comprising;
a generating section provided to every one of yarn
processing units or every plurality of the yarn processing
units and adapted to generate waveform data from detection
20 result data on a yarn state of a joint by a yarn joining
device, the waveform data indicating a change state of the
yarn state;
a calculating section provided to every one of the
yarn processing units or every plurality of the yarn
25 processing units and adapted to calculate an evaluation
value relating to the yarn state and a length from the
detection result data;
an output section provided to every one of the yarn
processing units or every plurality of the yarn processing
30 units and adapted to output the waveform data and the
evaluation value via a communication line;
42 / 46
a display section; and
a display control section adapted to obtain the
waveform data and the evaluation value via the
communication line and to display on the display section,
the evaluation value as an evaluation result point in 5 an
overlapping manner with the waveform data.
3. The yarn state display device according to claim
1 or claim 2, wherein the display control section is adapted
10 to simultaneously display on the display section, the
evaluation result points relating to a plurality of the
joints being different from each other in terms of time.
4. The yarn state display device according to claim
15 3, wherein the display control section is adapted to display
on the display section, the evaluation result point
corresponding to the waveform data displayed on the display
section of a plurality of the evaluation result points
simultaneously displayed in distinction from other of the
20 evaluation result points.
5. The yarn state display device according to claim
3 or claim 4, wherein the display control section is adapted
to display on the display section, the evaluation result
25 point relating to the joint that has been cut and removed
as a defective joint and the evaluation result point
relating to the joint not to be cut or removed in distinction
from each other.
30 6. The yarn state display device according to claim
5, wherein the display control section is adapted to further
43 / 46
display on the display section, a first clearing curve being
a boundary whether or not to cut and remove the joint.
7. The yarn state display device according to any
one 5 of claim 1 through claim 6, wherein
the calculating section is adapted to further
calculate an evaluation value relating to a yarn state and
a length on a normal yarn unevenness other than the joint
from the detection result data of a yarn state other than
10 the joint, and
the display control section is adapted to further
display on the display section, an evaluation result point
relating to the normal yarn unevenness.
15 8. The yarn state display device according to claim
7, wherein the display control section is adapted to display
on the display section, the evaluation result point
relating to the normal yarn unevenness that has been cut
and removed and the evaluation result point relating to the
20 normal yarn unevenness not to be cut or removed in
distinction from each other.
9. The yarn state display device according to claim
8, wherein the display control section is adapted to further
25 display on the display section, a second clearing curve
being a boundary whether or not to cut and remove the normal
yarn unevenness.
10. The yarn state display device according to claim
30 3 or claim 4, wherein
the calculating section is adapted to further
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calculate an evaluation value relating to a yarn state and
a length on a normal yarn unevenness other than the joint
from the detection result data of a yarn state other than
the joint, and
the display control section is adapted to display 5 on
the display section, the evaluation result point relating
to the joint not to be cut or removed and the evaluation
result point relating to the normal yarn unevenness not to
be cut or removed in distinction from each other.
10
11. The yarn state display device according to any
one of claim 1 through claim 10, wherein the calculating
section is adapted to calculate as an evaluation value of
the joint, the evaluation value of a portion where a yarn
15 is thickest or mass of the yarn is largest in the detection
result data during a joint measuring period in a case where
the joint is not detected during the joint measuring period
when the evaluation value is calculated based on the
detection result data during the joint measuring period
20 after yarn joining has been performed by the yarn joining
device.
12. The yarn state display device according to any
one of claim 1 through claim 11, wherein the display control
25 section is adapted to further display on the display section,
a length of the yarn after yarn joining has been performed
by the yarn joining device until a joint is detected by the
calculating section.
30 13. The yarn state display device according to any
one of claim 1 through claim 12, wherein the yarn joining
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device includes a splicer adapted to connect yarn ends by
airflow.
14. A yarn processing device comprising:
the yarn state display device according to any 5 one
of claim 1 through claim 13; and
a plurality of yarn processing units adapted to
perform yarn processing, wherein
the generating section is adapted to generate the
10 waveform data based on the detection result data on a yarn
to be processed by the yarn processing unit, and
the calculating section is adapted to calculate the
evaluation value based on the detection result data on the
yarn to be processed by the yarn processing unit.
15
15. A yarn state display method performed by a yarn
state display device adapted to display a yarn state
comprising:
a generating step of generating waveform data from
20 detection result data on a yarn state of a joint by a yarn
joining device, the waveform data indicating a change state
of the yarn state;
a calculating step of calculating an evaluation value
relating to the yarn state and a length from the detection
25 result data; and
a display step of displaying on a display section,
the evaluation value as an evaluation result point in an
overlapping manner with the waveform data.