JP2005154103A - Constant-length take-up device and take-up package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a constant-length take-up device and take-up package that automatically stop unwinding every predetermined thread length, automatically replace the package with a new thread feeding package, and allow continuous winding, when a plurality of packages having no tail thread are continuously rewound to wind many take-up packages with small diameter having small thread amount. <P>SOLUTION: In the constant-length take-up device, a sensor with a needle for detecting the unwinding of the threads is mounted to a predetermined position of a thread winding layer of the thread feeding package to be unwound. A controller for controlling the measured length of a thread measured length reserving device based on a detection signal from the sensor is disposed, and a predetermined thread length is unwound. Then, the unwinding operation from the thread feeding package is stopped, the thread is pieced to the next new thread feeding package, and the unwinding and take-up can be restarted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a constant-length winding device that winds a yarn length of a predetermined length and a package manufactured by the winding device. More specifically, the present invention relates to a series of small packages with a small amount of yarn from a plurality of large packages. The present invention relates to a constant length winding device and a winding package that are manufactured in large numbers.

  Conventionally, when unwinding yarn continuously from a plurality of yarn feeding packages and manufacturing a large number of small packages with a small amount of yarn, the tail thread (the innermost layer starts winding) of each yarn feeding package. The yarn is bunch-wrapped on a bobbin) with the outermost layer yarn of the next yarn supplying package, and the unwinding operation is continued.

  In addition, when using a dyed package dyed in a state wound around a bobbin as a yarn supply package, the yarn quality of the innermost layer portion of the package that is likely to cause uneven dyeing during dyeing is unstable, Since the bottom thread is not formed, a portion other than the innermost layer is wound around a new bobbin to form a yarn supply package including the bottom thread.

  When continuously unpacking a package without a tail thread, it was not possible to splice with the next package in advance, and all the wound yarns were unwound from the first package. Later, the operator manually pulls out the yarn from the next package, performs threading, and then resumes the winding operation.

Further, when unwinding a yarn from a yarn supply package such as a dyeing package and winding a new winding package, the yarn supply package is inserted into a tray having a yarn unwinding restriction means, and the outer layer yarn is wound. There are already published applications in which only the inner layer is wound and the inner layer yarn is not wound. (For example, see Patent Document 1)
Japanese Patent Laid-Open No. 9-67065 (page 1-4, FIG. 3)

  However, when winding a small package with a small number of yarns continuously from a plurality of yarn supply packages that do not have a tail thread (no bunch winding is formed) This will increase the number of thread breaks, increase the threading work and the splicing work, and the labor cost will be excessive.

  Furthermore, it is necessary to always be monitored by a person, and it is difficult to perform unattended operation such as at night. In other words, in the conventional winding device, the operation of continuously winding a large number of small-diameter winding packages with a small amount of yarn from a plurality of yarn supply packages that do not have a tail thread is performed automatically and unmannedly. It was difficult to do.

  It is an object of the present invention to automatically unwind a plurality of packages not having a tail thread and to automatically wind a plurality of small-diameter winding packages with a small amount of yarn every predetermined yarn length. In addition, the constant length winding device and the winding package that can be continuously wound by stopping unwinding and automatically changing to a new yarn supplying package are provided.

  In order to achieve the above object, the invention according to claim 1, when unwinding a yarn from a yarn supply package with a large amount of yarn and winding a large number of winding packages with a small yarn amount of a predetermined yarn length, A sensor with a needle that detects that the yarn has been unwound at a predetermined position of the wound yarn layer to be unwound is configured to control the unwinding operation from the yarn supply package. It is a feature.

  According to the invention according to claim 1 having the above-described configuration, by controlling the sensor with a needle at a predetermined position of the yarn supply package, the unwinding is stopped at an arbitrary position of the wound yarn layer. A large number of winding packages with a predetermined yarn length and a small amount of yarn can be automatically manufactured.

  In the invention according to claim 2, as the control of the unwinding operation, after the detection, the unwinding of the yarn supply package being unwound is stopped after a predetermined yarn length is unwound, and the unwinding yarn is It is characterized in that it is cut and joined with the outermost layer yarn of the next yarn supplying package, and winding is resumed.

  According to the invention according to claim 2 having the above-described configuration, a plurality of yarn supply packages that are not provided with a tail yarn are continuously unwound, and a single small-volume winding package with a small amount of yarn is wound. Even when winding the winding package, the unwinding is automatically stopped and the next package can be spliced and continuously wound.

  The invention according to claim 3 selects at least one yarn from a plurality of yarn feeding packages having different colors or a plurality of yarn feeding packages having a plurality of yarn types by a selection device, and performs yarn joining by the yarn joining device. A winding that continuously winds a winding package while measuring various colored yarns and yarn types to a predetermined length in the longitudinal direction of the yarn via a yarn length measuring and storage device that performs length measurement and storage simultaneously. In the take-up device, a colored yarn different from the yarn of the main winding layer is disposed at the winding end portion of the winding package, and a sensor with a needle is attached to the innermost layer portion of the winding layer of the yarn supply package, After detecting that the unwinding of the yarn has reached the innermost layer, a control device for controlling the length measurement of the yarn length measurement storage device is provided.

  According to the invention according to claim 3 having the above-described configuration, a small-diameter winding package with a small number of yarns is obtained by drawing colored yarns of a predetermined length from a plurality of color dyeing packages not provided with tail threads. When winding the wire, it is possible to automatically control the unwinding by detecting the absence of the wound yarn layer.

  According to a fourth aspect of the present invention, when the sensor with a needle detects that the yarn has been unwound, it further unwinds a predetermined yarn length, and then the yarn is spliced with the next package to perform the winding operation. It is characterized by having a continuous configuration.

  According to the invention according to claim 4 having the above-described configuration, a plurality of small-size winding packages with a small amount of yarn are obtained by drawing colored yarns of a predetermined length from dyeing packages of a plurality of colors not provided with tail threads. During winding, unwinding is automatically stopped and the next package and yarn splicing can be performed for continuous winding.

  The invention according to claim 5 is a winding package wound by the constant-length winding device according to any one of claims 1 to 4, wherein a predetermined length of the colored yarn portion at the start of winding and the intermediate layer It has a main winding layer and a colored yarn portion of a predetermined length at the end of winding.

  According to the invention according to claim 5 having the above-described configuration, a winding package capable of easily finding the winding end yarn and effectively using the yarn of the main winding layer having a predetermined length is continuously wound. be able to.

  According to the present invention, a plurality of yarn supply packages that do not have a tail yarn are continuously unwound and a plurality of small-diameter winding packages with a small yarn amount and a predetermined yarn length are wound automatically. The unwinding can be stopped and the next package and yarn spliced to be continuously wound, and the yarn at the end of winding can be easily found, and the yarn of the main winding layer of a predetermined length can be used effectively. A winding package can be obtained.

  When unwinding a number of packages that do not have tail threads in succession and winding a large number of small-diameter winding packages with a small amount of yarn, the unwinding is automatically stopped at every predetermined thread length. The purpose of obtaining a constant-length winding device and a winding package that can be continuously wound and automatically wound with a new yarn supplying package is obtained at a predetermined position of the wound yarn layer to be unwound. A sensor with a needle for detecting that the yarn has been unwound is mounted to control the unwinding operation from the yarn supply package, and a control device for controlling the length measurement of the yarn length measuring storage device is provided. The configuration.

  Hereinafter, embodiments of a constant-length winding device and a winding package according to the present invention will be described with reference to FIGS.

  FIG. 1 is a schematic explanatory view showing an embodiment for unwinding a wound yarn from a yarn supplying package equipped with a sensor with a needle according to the present invention.

  When the yarn Y is pulled out from the yarn supply package P, inserted through the guide 2 and sent out in the direction of the arrow in the drawing via the yarn feeding device 3 comprising the feed roller 3B and the nip roller 3C having the drive motor 3C, A sensor 1 with a needle for detecting how far is unwound is mounted on the rear end side of the yarn feeding package opposite to the Y feeding direction.

  Further, a control device 4 for detecting the signal from the sensor 1 with the needle and controlling the driving of the drive motor 3C is provided.

  Here, the configuration and usage of the sensor 1 with a needle will be described with reference to FIGS. 2A and 2B are diagrams for explaining the operating state of the attached sensor with a needle. FIG. 2A shows the sensor ON state, and FIG. 2B shows the sensor OFF state. FIG. 3 shows an example of a sensor with a needle, where (a) is a front view and (b) is a side view.

  A sensor 1 with a needle shown in FIGS. 3A and 3B has a configuration in which a needle 10 and a microswitch 13 are integrated, and a support plate 11 and a microswitch 13 for attaching the needle 10 to a case 12 made of sheet metal. Are fixed with a round screw 16 to form an integral structure. That is, the microswitch 13 is configured to have a sandwich configuration between the case 12 and the support plate 11.

  The needle 10 is, for example, an industrial sewing needle, and has a slightly flattened and pointed needle tip portion 10A that is difficult to be removed when pierced. Further, the protruding length L from the support plate 11 is such a length that the sensor 1 with a needle cannot be removed when the needle 10 is pierced into the wound layer of the yarn supplying package Y around which the yarn is wound. If it is a small sensor 1 with a needle | hook, about 20-30 mm may be sufficient.

  The micro switch 13 includes a hinge lever 15 that is elastically supported at a connection end on the switch body side, and a roller 14 that is attached to the tip of the lever 15, and is elastically supported in a protruding direction. This is a so-called hinge roller lever type micro switch in which the hinge lever 1 is pushed in and the switch is turned on when the roller 14 is pressed.

  In the sensor 1 with a needle according to the present embodiment, as shown in FIG. 3A, the upper surface of the roller 14 is switched off at the protruding position 14a, but at the position 14b where it is pushed to the end surface of the case 12. The switch is turned on.

  Therefore, as shown in FIG. 2A, when the needle 10 is inserted into the innermost layer portion of the end surface of the yarn supply package Pa having a large-diameter winding layer, and the case 12 is brought into contact with the winding layer, The roller 14 is pushed in and the switch is turned on.

  When the yarn Y is unwound while the switch sensor 1A with the switch turned on is attached, the diameter of the wound layer gradually decreases to become a small-diameter yarn supply package Pb, and finally the roller 14 comes into contact. All wound yarn layers are unwound. In that case, as shown in FIG. 2 (b), the roller 14 protrudes by the elastic force supporting the hinge lever 15, and the sensor with needle 1B in the switch OFF state is obtained.

  Of course, the needle 10 is inserted so as to be located on the inner side (bobbin side) with respect to the winding layer with which the roller 14 abuts. Therefore, even if the roller 14 protrudes and the switch is turned off, the needle 10 is stuck in the winding layer. The needled sensor 1 is not dropped or dropped.

  Although it is possible to stop the drive motor immediately by the control device upon detecting the OFF signal, in this embodiment, after detecting the OFF signal, the unwinding is performed after a predetermined yarn length is unwound. Is configured to stop.

  In general, a dyeing package obtained by dyeing a bobbin with a thread wound softly tends to cause uneven dyeing in the innermost layer portion, and is usually not used in a subsequent process. Therefore, when the sensor 1 with a needle according to the present embodiment is attached to the innermost layer portion of the dyeing package, it is detected that the yarn has been unwound to a predetermined position of the wound yarn layer to be unwound. Then, the unwinding operation thereafter is stopped, and after unwinding for a predetermined time, control can be performed such as stopping and performing yarn joining with the next package, so that the winding operation can be automated.

  The yarn winding device according to the present invention will be described with reference to FIG. The yarns Y1, Y2, Y3 are pulled out from the packages P1, P2, P3... Mounted on the creel 21 and inserted through the tension applying member G1, and the yarn selecting device 22, the yarn joining device 25, and the yarn length measuring storage device. 26, the winding package PW is manufactured by winding the yarn Y around the empty bobbin CB attached to the winding unit 30 and rotating with the winding drum 31 via the second tension applying member G2. Further, after the manufactured winding package PW rotates the cradle 32 that holds the package PW in the direction of the arrow R2, the holding of the package PW is released, and the winding package PW is lowered to the inclined surface 40 and integrated. The configuration is integrated in the unit 41.

  The packages P1, P2, P3,... Are packages having different colors and yarn types, and are continuously supplied to the yarn length measurement storage device 26 while being spliced by the yarn splicing device 25. Further, packages of color types and thread types necessary for producing a desired woven fabric are mounted on the creel 21 and are not limited to the three illustrated, and may be mounted on six or twelve. There is no limit to the quantity.

  Each sensor 1 with a needle is attached to each package, and an ON / OFF signal is transmitted to the control device 4A via the connector 5. Therefore, when the OFF signal is received from the package being unwound, the control device 4A can control the drive motor M of the yarn length measurement storage device 26 to store a predetermined yarn length and then stop. By this control, unwinding can be stopped before the yarn wound around the package is completely removed, and the next package can be spliced, and the winding operation can be continued without breaking the yarn.

  The yarn selecting device 22 has yarn guides 23a, 23b, and 23c (see FIG. 5) arranged for each of the packages P1, P2, and P3, and guides the yarn Y to the yarn joining device 25 as will be described later. The yarn guide position (corresponding to 23A in the figure) and the position for guiding the thread Y to the suction member 24B (corresponding to 23B in the figure) are controlled to be movable.

  The yarn Y sucked by the suction member 24B is sandwiched between the yarn holding roller 24A and the yarn holding plate 24. The yarn holding roller 24A is a roller member whose outer peripheral surface is coated with an elastic material such as urethane, and the yarn holding plate 24 is configured to abut against and separate from the yarn holding roller 24A by a cylinder 24C.

  The yarn joining device 25 cuts and joins the yarn Y. After the desired yarn Y selected by the selection device 22 is guided to the yarn joining device 25 and joined, the yarn length measuring storage device 26 is used. Is driven and wound up as a predetermined length of yarn. The yarn splicing device 25 may be a splicer device that splics yarn by air vortex or a knotter device that performs yarn knotting. Whether to adopt a splicer device or a knotter device is selected depending on the type of yarn to be used and the required yarn joining mode.

  The selection device 22 is provided with a thread guide 23 for guiding each thread Y. The thread guide 23 guides the thread Y2 and a thread guide 23a for guiding the thread Y1, as shown in FIG. It comprises a yarn guide 23b and yarn guides 23c for guiding the yarn Y3. In addition, the entire thread guide 23 can be swung by the cylinder 27 via the swing member 28, and the thread guides 23a, 23b, 23c can be prevented from swinging via the cylinders 29a, 29b, 29c. Only a desired yarn guide is swung to a yarn guide position (corresponding to 23A) for guiding the yarn Y to the yarn joining device 25.

  The spring member 28A biases the yarn guide 23 toward the yarn guide position (corresponding to 23A) for guiding the yarn Y to the yarn joining device 25, and the cylinder 27 causes the yarn guide 23 and the yarn Y to pass through the push-up bar 28b. In this configuration, it is pushed down to a position (corresponding to 23B) for guiding to the suction member 24B. At this time, the predetermined thread guide 23 is fixed at the position 23B by the cylinders 29a, 29b, and 29c, but will not be described in detail here.

  In addition, after the selected yarn Y is spliced by the yarn splicing device 25, the yarn length measuring storage device 26 is driven to wind up the yarn of a predetermined length. This yarn length measuring storage device 26 is a winding drum provided with a pulse motor or a servo motor capable of angle control that is rotated while controlling the rotation angle by a yarn selection control program determined in consideration of the pattern after weaving. It is.

  As described above, the yarn preparation unit 20 including the selection device 22, the yarn joining device 25, and the yarn length measurement storage device 26 selects the yarn Y to be wound around the winding package PW and stores a predetermined length. is there.

  The yarn Y measured and wound by the yarn length measuring storage device 26 is wound by the winding unit 30 to wind the winding package PW. When the winding of the winding package PW having a predetermined yarn length is completed, the winding package PW is removed, a new empty winding bobbin is mounted, and the next new winding is started.

  Next, as shown in FIGS. 6A and 6B, the fully wound winding package PW having a predetermined yarn length wound around the winding portion 30 is removed, and a new empty bobbin CB is loaded from the first stocker 50 onto the bobbin. The operation of transporting to the second stocker 60 via the mounting member 51 and mounting from the second stocker 60 to the winding unit 30 will be described.

  As shown in the figure, in the winding unit 30 including a winding drum 31 provided with a spiral groove for traversing the yarn Y and a cradle 32 that rotatably supports the bobbin CB, the winding drum 31 that rotates. A thread is wound around a bobbin CB that rotates in contact with the thread. When a predetermined yarn length is wound, rotation of the winding drum 31 is stopped, and a payout operation of the fully wound winding package PW held by the cradle 32 is started.

  The cradle 32 is rotatable around the support shaft 32a by the cylinder 34. When the fully wound winding package PW is wound, the rotation of the winding drum 31 is stopped, and then the imaginary line in the direction of the arrow R2 To the cradle 32A position shown in FIG. Then, the large-diameter portion holder 36 is moved by the cylinder 37 shown in FIG. 6B (shown by an imaginary line in the figure), and the holding of the fully wound winding package PW is released.

  When releasing the holding of the fully wound winding package PW at the position of the cradle 32A, the yarn removing guide 38 is rotated to catch the yarn Y in the U groove 38a. At this time, the empty bobbin CB is removed. When the second stocker 60 at the receiving position 60A is rotated in the direction of the arrow R1 to the position 60B, the position is set so that the yarn Y is inserted into the guide guide 61 described above. Before releasing the holding of the package PW, the cutter member 61A is operated to cut the yarn Y and grip the yarn end on the winding side.

  After the yarn Y is cut, the large-diameter portion holder 36 is moved by the cylinder 37 (shown by an imaginary line in the figure) to release the full winding package PW, and the winding package PW is inclined. It falls to 40 and is accumulated in the accumulation unit 41. The stacking unit 41 may be a stacking box or a conveyor.

  With the cutter member 61A cutting the yarn Y and holding one end of the yarn end, the winding package PW described above is released. Then, the bobbin mounting portion of the cradle 32 becomes a void portion without a bobbin. When the cradle is moved from the position 32A to the position 32B in this state, the position is engaged with the second stocker 60 at the position 60B. It becomes possible. Therefore, a mounting operation for mounting a new empty bobbin CB in the gap is started.

  When the empty bobbin CB is mounted, the yarn removal guide 38 is rotated through the cylinder 39 so as to lift the yarn Y, is removed from the spiral groove on the surface of the winding drum 31, and is captured by the U groove 38a. Then, the cylinder 37 is extended by the cylinder 37 via the connecting member 37B, and the large-diameter portion holder 36 is moved forward from the imaginary line position in the drawing to the position indicated by the solid line. When the large-diameter portion holder 36 is moved, the U-groove 38a of the yarn removal guide 38 comes into contact with the yarn Y whose yarn path is restricted, and the yarn Y is sandwiched between the large-diameter portion of the empty bobbin CB. It is said.

  As described above, the leading empty bobbin CB in the second stocker 60 is sandwiched between the large-diameter portion holder 36 and the small-diameter portion bobbin holder 35 of the cradle 32 and the next winding is started.

  According to the yarn winding device of the present invention that draws and winds the yarn Y from the packages P1, P2, and P3 to which the sensor 1 with a needle is attached, the winding end of the winding package PW as shown in FIG. It is easy to dispose the colored yarn Ya different from the yarn Yb of the main winding layer in the portion, and the winding end yarn Ya can be easily found and pulled out from the obtained winding package PW. Further, as shown in FIG. 7 (b), the colored yarn Yc is wound at the beginning of winding around the empty bobbin CB, and after the predetermined yarn length Yc, the main winding layer Yb of the predetermined yarn length is wound, A winding package PW in which the colored yarn Ya is wound at the end of winding can be obtained.

  Therefore, it is possible to manufacture a winding package PW having a regular length main winding layer and a predetermined length of colored yarn at the beginning and end of winding, and easily find the yarn on the surface of the package. In addition, since it is easy to align the starting point of the yarn of the main winding layer and the end point is clear, the yarn Yb of the main winding layer can be used completely effectively.

  The sensor 1 with a needle according to the present invention is configured to pierce a wound yarn layer with a needle, but regardless of this, it is provided on the creel side to which the package is attached, and the package is attached to the creel. It can also be set as the structure which the said roller 14 contact | abuts to the end surface of this. Further, a sensor can be mounted on the bobbin side of the package so as to come into contact with a predetermined position of the wound layer. However, yarn supply packages include corn and cheese using paper tube bobbins, yarn supply packages using metal bobbins, and wood tube bobbins, and the types are not always the same. For this reason, a sensor configuration with a needle that can be pierced at an arbitrary position of the wound layer is suitable because it can be used by piercing the wound layer in common regardless of the package form.

  In particular, when the dyeing package is used as it is, the yarn in the innermost layer generally has uneven dyeing or is often difficult to unwind. For this reason, when the sensor with a needle 1 according to the present invention is mounted, the unwinding can be stopped immediately after unwinding to a layer having a relatively good thread quality and replaced with a new package. Thus, continuous operation without using the innermost layer yarn becomes possible, and unattended automatic operation is possible.

  In general, when producing a sample of a woven fabric or a knitted fabric, a large number of yarn packages having a small amount of yarn length are required. Further, each package is not a single yarn type, and a package in which various colored yarns are wound for each predetermined yarn length is required. For this purpose, the selection device 22 and the yarn length measuring and storage device 26 shown in the present embodiment are provided, and the winding device for attaching the needle-attached sensor 1 to the yarn supply package is adopted, so that the necessary yarn types and yarns are used. Long patterned packages can be automatically manufactured continuously and in large quantities.

It is a schematic explanatory drawing which shows one Example which unwinds a wound yarn from the yarn supply package with which the sensor with a needle | hook concerning this invention was mounted | worn. It is drawing explaining the operation | movement condition of the mounted sensor with a needle | hook, (a) shows the state of sensor ON, (b) has shown the state of sensor OFF. An example of a sensor with a needle is shown, (a) is a front view, and (b) is a side view. 1 is an overall schematic view of a yarn winding device according to the present invention. It is a schematic explanatory drawing which shows the drive means of the thread | yarn selection apparatus which concerns on this invention. The winding part of the winding device of the thread | yarn which concerns on this invention is shown, (a) is a schematic side view, (b) is a front view. It is a schematic explanatory drawing which shows the winding package which concerns on this invention, (a) is a whole perspective view, (b) has shown the arrangement | sequence of the wound thread | yarn.

Explanation of symbols

1 Sensor with needle
3 Yarn feeder
4 Control Device 10 Needle 13 Micro Switch 14 Roller 22 Selection Device 26 Thread Length Storage Device 30 Winding Unit
P Yarn supply package
Y thread
Ya colored yarn (end of winding)
Yb Main winding layer
Yc colored yarn (start of winding)
PW winding package

Claims (5)

When unwinding a yarn from a yarn supply package with a large amount of yarn and winding a large number of winding packages with a small yarn amount of a predetermined yarn length, the yarn is unwound at a predetermined position on the wound yarn layer to be unwound. A constant-length winding device, characterized in that a sensor with a needle that detects that a fold has reached is attached to control the unwinding operation from the yarn supply package. As control of the above-described unwinding operation, after the detection, the unwinding of the yarn supply package being unwound is stopped after a predetermined yarn length is unwound, and the unwinding yarn is cut and the next yarn supplying package is cut. The constant length winding device according to claim 1, wherein the yarn is joined to the outermost layer of the yarn and the winding is resumed. A yarn that selects at least one yarn from a plurality of yarn feeding packages of different colors or a plurality of yarn feeding packages of a plurality of yarn types by a selection device, joins the yarn by the yarn joining device, and simultaneously measures and stores the yarn. In a winding device that continuously winds a winding package while measuring various colored yarns and yarn types to a predetermined length in the longitudinal direction of the yarn via a length measuring storage device,
A yarn having a different color from the yarn of the main winding layer is disposed at the winding end portion of the winding package, and a sensor with a needle is attached to the innermost layer portion of the winding layer of the yarn supplying package, so that the yarn is unwound. A constant length take-up device comprising a control device for controlling the length measurement of the yarn length measurement storage device after detecting that the innermost layer portion has been reached. When the sensor with the needle detects that the yarn has been unwound, the yarn is spliced to the next package after further unwinding a predetermined yarn length, and the winding operation is continued. The constant length winding device according to claim 3. A winding package wound by the constant-length winding device according to any one of claims 1 to 4, wherein the colored yarn portion of a predetermined length at the start of winding, the main winding layer of the intermediate layer, and the winding end A winding package having a color yarn portion of a predetermined length.

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