JP2013063838A - Yarn winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably engage a yarn in a traverse guide when restarting winding of the yarn, in a yarn winding machine.SOLUTION: An automatic winder includes a bobbin set part, a cradle 23, a contact roller 29, a traverse guide 28, and yarn handling plates 75, 76. The bobbin set part supplies a yarn of a yarn supply bobbin. The cradle 23 rotatably holds a package 30 for winding a yarn 20 supplied from the bobbin set part. The contact roller 29 is rotated while being in contact with the package 30. The traverse guide 28 is provided independently from the contact roller 29. The traverse guide 28 engages the yarn 20 wound around the package 30 to traverse the yarn 20. The yarn handling plates 75, 76 bring the yarn 20 closer to the central side in the winding width direction of the package 30 by being in contact with the yarn 20 applied with tension, in a stage before the traverse guide 28 engages the yarn 20.

Description

  The present invention relates to a yarn winding machine that supplies yarn from a yarn supplying section and winds it around a package while traversing.

  This type of yarn winding machine is disclosed in Patent Document 1, for example. The yarn winding machine disclosed in Patent Document 1 includes a yarn finger that reciprocally guides a yarn. The yarn finger includes an arm attached to the rotating shaft of the driving device and a yarn guide attached to the tip of the arm. The yarn guide at the tip of the yarn finger reciprocates while drawing an arcuate locus by forward and reverse rotation of the rotation shaft of the driving device. Further, the yarn winding machine of Patent Document 1 includes a gate-shaped guide frame arranged along the track of the tip of the yarn finger.

JP 2006-298499 A

  In the yarn winding machine as described in Patent Document 1, when a yarn breakage or the like occurs during the winding of the yarn, in order to resume winding, the yarn guide is hung on the yarn guide so that it can be traversed again with the yarn finger. There is a need. However, depending on the situation, it may be difficult to thread the yarn guide in this way. Further, for example, when winding a thin thread, the thread is broken when a large tension is applied to the thread, so that the tension is often set to be weak, making the thread hooking more difficult.

  If the yarn does not get on the yarn guide well, traversing will not be possible, and a bar winding will be formed on the package, which will require a great deal of effort to remove it. Further, the yarn is pushed out by the yarn guide and protrudes from the end surface of the package, so that the end surface is dropped, and the quality of the package may be greatly deteriorated. For this reason, a configuration that can reliably engage the yarn with the traverse guide has been desired.

  In this regard, Patent Document 1 discloses a guide frame, but there is no description about the purpose of providing the guide frame. Further, this guide frame configuration cannot prevent the yarn from being pushed out by the yarn guide.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a configuration capable of reliably hanging a yarn on a traverse guide when rewinding the yarn in a yarn winding machine. It is in.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, a yarn winding machine having the following configuration is provided. That is, the yarn winding machine includes a yarn supplying unit, a cradle, a contact roller, a traverse guide, and a yarn gathering unit. The yarn supplying section supplies yarn. The cradle rotatably holds a package around which the yarn supplied by the yarn supplying unit is wound. The contact roller rotates in contact with the package. The traverse guide is provided independently of the contact roller, and traverses the yarn by engaging the yarn wound around the package held by the cradle. The yarn gathering portion draws the yarn toward the center in the winding width direction of the package by contacting the yarn to which tension is applied before the traverse guide applies the yarn.

  Thereby, when rewinding of the yarn is resumed, the traverse guide can be engaged with the yarn that is brought closer to the center side in the winding width direction of the package. Therefore, the yarn can be reliably hung on the traverse guide and the traverse of the yarn can be started smoothly.

  The yarn winding machine preferably has the following configuration. That is, the outline of the yarn gathering portion has a first guide portion and a second guide portion. The first guide portion is arranged to be inclined at a first inclination angle so as to gradually move away from the yarn feeding portion side as approaching the end in the winding width direction of the package. The second guide portion is disposed closer to the center of the package in the winding width direction than the first guide portion, and is connected to the end portion of the first guide portion. It is arranged so as to be inclined at the second inclination angle so as to gradually move away from the yarn supplying section side. The second inclination angle is steeper than the first inclination angle.

  Thereby, in a stage before the traverse guide engages with the yarn, the yarn is finally brought into contact with the second guide portion having a steep inclination angle. Therefore, by appropriately determining the position of the second guide portion, the yarn can be hooked at a good position where the traverse guide can easily engage the yarn with certainty, so that the yarn can be hooked on the traverse guide more reliably.

  In the yarn winding machine, it is preferable that the first guide portion and the second guide portion are respectively disposed on both sides in the winding width direction of the package.

  As a result, when rewinding the yarn, the yarn can be brought closer to the center in the winding direction of the package, regardless of which end position of the yarn end is located in the winding width direction of the package. it can. Accordingly, the engagement of the yarn by the traverse guide can be reliably started.

  The yarn winding machine preferably has the following configuration. That is, the traverse guide includes a hook-shaped yarn hooking portion that opens one side in the traverse direction of the yarn. The first guide part and the second guide part are arranged at least on the same side as the open side of the yarn hooking part in the winding width direction of the package.

  Thereby, a thread | yarn can be easily hung on the hook-shaped thread hook part which a traverse guide has from an open side.

  The yarn winding machine preferably includes a yarn path guide portion that guides a yarn path of the yarn to be traversed while being engaged with the traverse guide.

  As a result, after the yarn is hung on the traverse guide, the yarn is traversed by the traverse guide while being properly guided by the yarn path guide portion without being in contact with the yarn gathering portion, and wound. Therefore, since the yarn gathering portion can be prevented from affecting the winding of the package, a high quality package can be formed.

  In the above-described yarn winding machine, it is preferable that the yarn gathering portion is composed of a plate-like member.

  This realizes a configuration in which the yarn is not easily entangled with the yarn gathering portion, so that the winding operation can be performed smoothly.

  The yarn winding machine preferably has the following configuration. That is, the yarn winding machine includes a drive unit that drives the traverse guide. The traverse guide is formed in an arm shape having a distal end portion provided with a portion for engaging a thread and a proximal end portion to which a driving force from the driving portion is transmitted. When the base end portion of the traverse guide is driven by the driving portion, the distal end portion of the traverse guide reciprocates along an arcuate locus.

  That is, in general, it is difficult to engage the yarn at the tip of the traverse arm that moves while drawing an arcuate locus. However, according to the above configuration, the yarn is wound in advance by the yarn gathering portion. Since it is brought closer to the center in the width direction, the thread can be reliably engaged by the traverse guide.

  The yarn winding machine preferably has the following configuration. That is, the yarn winding machine includes a yarn joining device and a catching guide unit. The yarn joining device joins the yarn end on the yarn feeding unit side and the yarn end on the package side when the continuous state of the yarn between the yarn feeding unit and the package is broken. The catching guide part catches the yarn end on the package side and guides it to the yarn joining device.

  As a result, in the yarn winding machine that performs the yarn splicing operation as needed during winding of the package, the traverse guide can reliably engage the yarn, so that winding can be smoothly resumed. As a result, the production efficiency of the package can be improved.

The front view which shows the whole structure of the automatic winder which concerns on one Embodiment of this invention. The front view and block diagram of the winder unit in 1st Embodiment. The front enlarged view which shows the structure of a traverse apparatus periphery. The schematic side view of a traverse apparatus. The perspective view which shows the detailed structure of a traverse guide. The side view which shows a mode that the yarn end by the side of a package is attracted | sucked by an upper thread guide pipe for the splicing in a splicer apparatus. The side view which shows a mode that the upper thread guide pipe is rotated from the state of FIG. 6, and a yarn end is pulled out. The front enlarged view which shows a mode that a thread | yarn is approached to the winding width direction center side of a package with a thread gathering plate. The front enlarged view which shows a mode that the thread | yarn approached to the winding width direction center side of the package is hung with a traverse guide. The front enlarged view which shows a mode that a thread | yarn is hung with a traverse guide in a comparative example. The front enlarged view which shows the structure around a traverse apparatus in the winder unit of 2nd Embodiment. The front view and block diagram of the winder unit in 3rd Embodiment. The front enlarged view which shows the structure of a traverse apparatus periphery. The schematic side view of a traverse apparatus.

  Next, embodiments of the invention will be described. First, the overall configuration of the automatic winder 1 of the present embodiment will be described with reference to FIG. FIG. 1 is a front view of an automatic winder 1 according to an embodiment of the present invention. In the present specification, “upstream” and “downstream” mean upstream and downstream in the traveling direction of the yarn when winding the yarn. That is, as shown in FIG. 2 and the like, in this embodiment, since the yarn 20 unwound from the yarn feeding bobbin 21 at the bobbin setting unit 18 is wound up by the winding unit 17, the bobbin setting unit 18 side is upstream. The winding unit 17 side is downstream.

  As shown in FIG. 1, an automatic winder (yarn winding machine) 1 includes a plurality of winder units (winding units) 10 arranged side by side, an automatic doffing device 8, and a machine base control device 90. Prepare as a configuration.

  Each winder unit 10 is configured such that the package 30 can be formed by winding the yarn 20 unwound from the yarn supplying bobbin 21 onto the winding bobbin 22 while traversing.

  The automatic doffing device 8 is configured to be able to travel between a plurality of winder units 10. The automatic doffing device 8 travels to the position of the winder unit 10 when the package 30 is full in each winder unit 10, collects the full package 30, and the yarn 20 is wound around it. A non-winding bobbin (empty winding bobbin) 22 is supplied. The automatic doffing device 8 may be configured to collect only the fully wound package 30 and not supply the empty winding bobbin 22. Further, the automatic doffing device 8 may be configured to supply only the empty winding bobbin 22 without collecting the fully wound package 30.

  The machine control device 90 includes an operation unit 91 and a display unit 92 as main components. The operator can input a predetermined set value or select an appropriate control method by operating the operation unit 91. Thereby, it can set with respect to each winder unit 10. FIG. The display unit 92 can display various information such as the winding state of the yarn 20 in each winder unit 10.

  Next, a detailed configuration of the winder unit 10 will be described with reference to FIGS. FIG. 2 is a front view and a block diagram of the winder unit 10 in the first embodiment. FIG. 3 is an enlarged front view showing the configuration around the traverse device 27. FIG. 4 is a schematic side view of the traverse device 27. FIG. 5 is a perspective view showing a detailed configuration of the traverse guide 28.

  As shown in FIG. 2, each winder unit 10 includes a winding unit main body 11 and a unit control unit 50.

  The unit control unit 50 is configured as a microcomputer-type control unit, and includes a CPU and a memory. Various programs are stored in the memory, and the CPU is configured to control each component of the winding unit main body 11 by executing the program. At this time, the memory is also used as a temporary data storage area.

  The winding unit main body 11 includes a bobbin setting portion (in order from the yarn supplying bobbin 21 side) in the yarn traveling path between the yarn supplying bobbin 21 and the winding bobbin (winding tube, paper tube, core tube) 22. (Yarn supplying unit) 18, yarn unwinding assisting device 12, tension applying device 13, splicer device (yarn joining device) 14, clearer (yarn quality measuring device) 15, and winding unit 17 are arranged. Configured.

  The bobbin setting unit 18 is disposed in the lower part of the winding unit main body 11. The bobbin setting unit 18 holds a yarn supplying bobbin 21 supplied by a bobbin conveying system (not shown) or a magazine type bobbin supplying device, and unwinds and supplies the yarn 20 wound around the yarn supplying bobbin 21. it can. Various configurations of the bobbin setting unit 18 are conceivable. For example, a cylindrical core tube provided in the yarn feeding bobbin 21 can be inserted, and a rod-like shape that can hold the inner wall of the core tube in the inserted state. It can be considered as a member.

  The yarn unwinding assisting device 12 brings the regulating member 40 into contact with a balloon formed on the yarn feeding bobbin 21 by swinging the yarn 20 to be unwound from the yarn feeding bobbin 21, and the balloon is appropriately sized. By controlling this, the unwinding of the yarn 20 is assisted. A sensor (not shown) that detects the chase portion of the yarn feeding bobbin 21 is provided in the vicinity of the regulating member 40. When this sensor detects the descent of the chase portion, the restricting member 40 is lowered by, for example, an air cylinder (not shown).

  The tension applying device 13 applies a predetermined tension to the traveling yarn 20. As the tension applying device 13, for example, a gate-type device in which movable comb teeth 37 are arranged with respect to fixed comb teeth 36 can be used. The movable comb teeth 37 are rotated by a solenoid 38 configured, for example, in a rotary manner so as to be engaged with or released from the fixed comb teeth 36. The tension applying device 13 can apply a certain tension to the wound yarn 20 to improve the quality of the package 30. In addition to the gate type device, for example, a disk type device can be adopted as the tension applying device 13.

  The splicer device 14 detects the yarn defect when the clearer 15 detects a yarn defect and cuts the yarn 20 with the cutter 39, or when the yarn breaks during unwinding from the yarn feeding bobbin 21, or the like. The yarn and the upper yarn on the package 30 side are spliced. As a yarn joining device for joining such an upper yarn and a lower yarn, a mechanical device, a device using a fluid such as compressed air, or the like can be used.

  The clearer 15 includes a clearer head 49 in which a sensor (not shown) for detecting the thickness of the yarn 20 is disposed, and an analyzer 53 that processes a yarn thickness signal from the sensor. The clearer 15 detects a yarn defect such as a slab by monitoring a yarn thickness signal from the sensor. In the vicinity of the clearer head 49, a cutter 39 for cutting the yarn 20 immediately when the clearer 15 detects a yarn defect is provided. The clearer 15 may be configured to detect a foreign matter contained in the yarn 20 as a yarn defect. Further, the analyzer 53 may be provided in the unit controller 50.

  On the lower side and the upper side of the splicer device 14, the lower yarn guide pipe 25 that catches the lower yarn on the yarn feeding bobbin 21 and guides it to the splicer device 14, and the upper yarn on the package 30 side is caught. And an upper thread guide pipe (capturing guide portion) 26 for guiding the upper thread. Further, the lower thread guide pipe 25 and the upper thread guide pipe 26 are configured to be rotatable about shafts 33 and 35, respectively. A suction port 32 is formed at the tip of the lower thread guide pipe 25, and a suction mouth 34 is provided at the tip of the upper thread guide pipe 26. Since an appropriate negative pressure source is connected to each of the lower thread guide pipe 25 and the upper thread guide pipe 26, a suction flow is generated in the suction port 32 and the suction mouth 34, and the thread ends of the upper thread and the lower thread are generated. Can be aspirated and captured.

  The winding unit 17 includes a cradle 23, a contact roller 29, a traverse device 27, and a pair of yarn gathering plates (yarn gathering portions) 75 and 76 as main components.

  The cradle 23 detachably holds the take-up bobbin 22. The cradle 23 is configured to be rotatable to the front side and the back side of the winder unit 10, and the cradle 23 increases the yarn layer diameter of the package 30 as the yarn 20 is wound around the winding bobbin 22. It is comprised so that it can absorb by rotating. Thereby, even if the yarn layer diameter of the package 30 is changed by winding the yarn 20, the surface of the package 30 can be appropriately brought into contact with the contact roller 29.

  The cradle 23 is provided with a package drive motor (winding tube drive unit) 41 composed of a servo motor. The winding unit 17 winds the yarn 20 around the surface of the winding bobbin 22 (or the surface of the package 30) by rotationally driving the winding bobbin 22 by the package driving motor 41. When the winding bobbin 22 is supported by the cradle 23, the motor shaft of the package driving motor 41 is connected to the winding bobbin 22 so as not to be relatively rotatable (so-called direct drive system).

  The operation of the package drive motor 41 is controlled by the unit controller 50. However, a package drive motor control unit independent of the unit control unit 50 may be provided, and the operation of the package drive motor 41 may be controlled by the package drive motor control unit.

  The contact roller 29 is disposed so as to be in contact with the outer peripheral surface of the winding bobbin 22 or the outer peripheral surface of the package 30 and is rotatably supported. The contact roller 29 can be driven to rotate as the winding bobbin 22 or the package 30 rotates. However, a drive motor that directly rotates the contact roller 29 may be provided to rotate the package 30 in a driven manner.

  The traverse device 27 is configured as an arm-type traverse device, and traverses the yarn 20 to the surface of the package 30. The winding unit 17 is configured to wind the yarn 20 around the package 30 while traversing the yarn 20 by the traverse device 27.

  As shown in FIG. 3, the traverse device 27 includes a traverse guide 28, a traverse guide drive motor (drive unit) 45, and a guide plate (yarn path guide unit) 71 as main components.

  The traverse guide 28 is configured as an elongated member configured to be rotatable around a support shaft. A thread hooking groove 65 is formed at the first end of the traverse guide 28 (on the side close to the thread 20 and on the tip side) so that the thread 20 can be hooked. On the other hand, the second end portion (base end side) of the traverse guide 28 is fixed to a boss portion 46 provided on the drive shaft 45 a of the traverse guide drive motor 45. Thus, unlike the configuration in which the traverse device 27 of this embodiment performs traverse with the groove formed on the contact roller 29, the traverse guide 28 is driven by the traverse guide drive motor 45 regardless of the rotation of the contact roller 29. The yarn 20 is traversed.

  The traverse guide drive motor 45 is for driving the traverse guide 28, and is constituted by a servo motor, for example. The traverse guide drive motor 45 may be configured by other appropriate motors such as a brushless DC motor, a stepping motor, and a voice coil motor.

  The traverse device 27 drives the traverse guide drive motor 45 to reciprocate the traverse guide 28 in a state where the yarn 20 is hooked on the tip end portion (the yarn hooking groove 65) of the traverse guide 28. As a result, the traverse device 27 reciprocates in the winding width direction of the package 30 so that the tip portion draws an arc-shaped locus, and traverses the yarn 20 to the surface of the package 30 in the left-right direction. Thus, the winder unit 10 winds the yarn 20 around the winding bobbin 22 while traversing the yarn 20 at a predetermined speed at a predetermined winding width, and the yarn layer formed on the outer peripheral surface of the winding bobbin 22 at a desired density. It can be formed.

  The operation of the traverse guide drive motor 45 is controlled by the unit controller 50. However, the traverse guide drive motor 45 may be controlled by providing a dedicated traverse control unit instead of being controlled by the unit control unit 50 as described above.

  A guide plate 71 is disposed immediately upstream from the traverse guide 28. The guide plate 71 is configured as a plate-like member curved in a conical surface.

  In the guide plate 71, an edge portion on the side close to the traverse guide 28 is an arc guide portion 72 formed in an arc shape along a locus drawn by the tip portion of the traverse guide 28. When the traverse guide 28 reciprocates, the arc guide portion 72 guides the yarn path so that the yarn 20 that is hooked on the traverse guide 28 smoothly reciprocates.

  Here, as shown in FIG. 4, when the drive shaft 45a of the traverse guide drive motor 45 is viewed in the direction of the straight line connecting the one end side and the other end side of the traverse stroke (the axial direction of the contact roller 29). The guide plate 71 is disposed so as to have an angle close to parallel to the yarn path of the yarn 20 on the downstream side of the guide plate 71. In other words, in the present embodiment, the traverse device 27 reciprocates the traverse guide 28 in a plane substantially parallel to the installation surface of the winder unit 10.

  With this configuration, the automatic winder 1 of the present embodiment has a yarn by the guide plate 71 as compared with the configuration in which the longitudinal direction of the traverse guide 28 is substantially perpendicular to the installation surface of the winder unit 10 (third embodiment described later). The bending of the road can be reduced. In particular, the effect of reducing the bending of the yarn path can be greatly exerted at both ends of the traverse stroke where the bending of the yarn path is maximized.

  Next, the shape and configuration of the traverse guide 28 will be described with reference to FIG. As shown in FIG. 5, the traverse guide 28 includes an arm main body 60 and a yarn guide piece (yarn guide portion) 64 fixed to the arm main body 60.

  The arm body 60 is an elongated plate-like member, and is made of, for example, a lightweight metal. The arm main body 60 includes an arm portion 61, a bent portion 62, and a hook portion (thread hook portion) 63.

  The arm portion 61 occupies most of the arm body 60 (a portion other than the tip portion). A plurality of holes for weight reduction are formed in the central portion of the arm portion 61.

  The bent portion 62 is formed between the arm portion 61 and the hook portion 63. As shown in FIG. 4, the bent portion 62 has a shape bent in a direction in which the hook portion 63 on the distal end side is brought closer to the contact roller 29. With this configuration, the free length (the length of the yarn 20 from the traverse guide 28 to contact with the contact roller 29) can be shortened, so that the behavior of the yarn 20 can be stabilized and the high-quality package 30 can be formed.

  The hook portion 63 is a portion that constitutes the distal end portion of the arm body 60, and is configured in a hook shape in which the side close to the base portion of the traverse guide 28 is opened and one side in the traverse direction is opened. A thread guide piece 64 made of ceramic is disposed inside the hook portion 63. The thread guide piece 64 is formed with a slit-shaped thread hooking groove 65 into which the thread 20 can be inserted.

  The yarn hooking groove 65 is formed in a straight line and is arranged so that its longitudinal direction is substantially parallel to the longitudinal direction of the traverse guide 28. Further, an end portion on one side in the longitudinal direction of the yarn hooking groove 65 (an end portion on the side close to the base portion of the traverse guide 28) is connected to an open portion of the hook portion 63.

  Next, the yarn gathering plates 75 and 76 will be described in detail with reference to FIG. The yarn gathering plates 75 and 76 wind the yarn 20 when the yarn 20 is positioned closer to the end of the package 30 in the winding width direction before the yarn 20 is hooked into the yarn hooking groove 65 of the traverse guide 28. This is for guiding toward the center in the width direction.

  Each of the yarn gathering plates 75 and 76 is configured by appropriately bending a plate-like member. The yarn gathering plates 75 and 76 are provided in a pair, one of which is arranged on one side in the winding direction of the package 30 (small diameter side of the cone winding package) and the other is arranged on the other side (large diameter side). Is done.

  Here, the hook portion 63 of the traverse guide 28 is configured to open one side in the traverse direction (specifically, the small diameter side of the cone winding package). Therefore, if the relationship with the shape of the hook portion 63 is used, the yarn gathering plate 75 is arranged on the same side as the open side of the hook portion 63 in the winding width of the package 30 (in other words, the traverse stroke of the traverse guide 28). Thus, it can be said that the yarn gathering plate 76 is disposed on the side opposite to the opening side of the hook portion 63.

  As shown in FIG. 4 and the like, the two yarn shifting plates 75 and 76 are disposed immediately upstream of the guide plate 71 in the yarn traveling direction. The respective yarn shifting plates 75 and 76 are disposed outside the guide plate 71 so as to partially cover the conical surface portion of the guide plate 71.

  Further, when the winder unit 10 is viewed from the front side, as shown in FIG. 3, only the portion corresponding to the center of the package 30 in the winding direction of the arc guide portion 72 that is the edge portion of the guide plate 71 is exposed. The other portions are covered with the yarn gathering plates 75 and 76.

  As shown in FIG. 4, a gap 78 through which the yarn 20 can pass is formed between the yarn gathering plates 75 and 76 and the guide plate 71 (inside the yarn gathering plates 75 and 76). A zigzag-shaped opening 77 that allows the yarn 20 to pass therethrough is formed between the two yarn gathering plates 75 and 76 (see FIG. 3). It is configured to connect with.

  As shown in FIG. 3, in the yarn gathering plate 75, the edge portion on the side close to the traverse guide 28 is formed in a polygonal line shape, and a first guide portion 81 and a second guide portion 82 are provided. .

  The first guide portion 81 has a substantially linear outline, and is arranged to be inclined so as to gradually move away from the bobbin set portion 18 as it approaches the end in the winding width direction of the package 30. The first guide portion 81 is disposed so as to include a position corresponding to the end of the winding width of the package 30.

  The second guide portion 82 also has a substantially linear outline, and is arranged to be inclined so as to gradually move away from the bobbin set portion 18 as it approaches the end in the winding width direction of the package 30. However, the inclination angle of the second guide portion 82 is steeper than the inclination angle of the first guide portion 81. The second guide portion 82 is disposed closer to the center in the winding width direction of the package 30 than the first guide portion 81, and the second guide portion 82 and the first guide portion 81 are connected to each other while forming a loosely bent portion. doing.

  Note that the edge portion on the side close to the traverse guide 28 also includes the first guide portion 81 and the second guide portion 82 in the yarn gathering plate 76 located on the opposite side in the winding width direction of the package 30. Yes. Since the structure of the 1st guide part 81 and the 2nd guide part 82 is the same as that of said yarn gathering plate 75, description is abbreviate | omitted.

  By configuring the yarn gathering plates 75 and 76 as described above, the pair of first guide portions 81 and the pair of second guide portions 82 each have a winding width of the package 30 as shown in FIG. It is the structure arrange | positioned substantially symmetrically on both sides of the direction center part. Further, when the winder unit 10 is viewed from the front side, the outlines of the yarn shifting plates 75 and 76 intersect the arc guide portion 72 of the guide plate 71 at the portion of the second guide portion 82.

  Next, in the winder unit 10 configured as described above, when the yarn 20 unwound from the yarn supplying bobbin 21 is cut, or when the clearer 15 detects a yarn defect and cuts the yarn 20 by the cutter 39. The control to be performed will be described. 6 to 9, the yarn end on the package 30 side is captured by the upper yarn guide pipe 26, and spliced to the yarn end on the yarn feeding bobbin 21 side by the splicer device 14, and then the yarn 20 is hung on the traverse guide 28. The operation to resume traverse is shown step by step. FIG. 10 is an enlarged front view showing how the yarn 20 is hooked by the traverse guide 28 in the comparative example.

  When the yarn 20 is cut or the yarn 20 is cut by the cutter 39, the unit controller 50 immediately stops the rotation of the package 30 and stops the traverse of the traverse guide 28 based on the signal from the clearer 15. To control.

  The yarn 20 naturally comes off from the yarn hooking groove 65 of the traverse guide 28 immediately after being divided and freed. Further, since the package 30 rotates to a certain degree by inertia until it completely stops, the free yarn end on the package 30 side is wound around the outer peripheral surface of the package 30 in accordance with the inertia rotation described above. Become.

  Next, the unit controller 50 rotates the upper thread guide pipe 26 upward from the position of FIG. Thereafter, the unit controller 50 controls the package drive motor 41 so as to rotate the package 30 in the reverse direction. As a result, the yarn end wound around the outer peripheral surface of the package 30 is unwound as shown in FIG. 6, and the yarn 20 is sucked into the upper yarn guide pipe 26 from the suction mouth 34. At this time, the unit controller 50 controls the traverse guide drive motor 45 so as to retract the traverse guide 28 to a predetermined position in advance so that the traverse guide 28 does not interfere with the unwinding of the yarn end.

  Thereafter, the unit controller 50 immediately turns the upper thread guide pipe 26 downward, and guides the yarn end captured by the upper thread guide pipe 26 to the splicer device 14. As a result, the yarn 20 is pulled out of the package 30 so as to pass outside the yarn gathering plates 75 and 76 (front side of the winder unit 10 with respect to the yarn gathering plates 75 and 76) (FIG. 7).

  Here, the reverse rotation of the package 30 is controlled so as to stop at least when the upper yarn guide pipe 26 finishes guiding the yarn end to the splicer device 14. When the reverse rotation is stopped, the position from which the yarn end is pulled out from the contact point between the package 30 and the contact roller 29 (hereinafter sometimes referred to as a pulling point) is indefinite, and varies depending on the winding width direction of the package 30. May take a different position. In this description, it is assumed that the drawing point is located in the vicinity of the end portion of the package 30 in the winding width direction (in the vicinity of the end portion on the small diameter side of the cone winding package) as indicated by reference numeral P1 in FIG.

  A constant tension is applied to the yarn end (yarn 20) drawn from the package 30 by the suction action of the suction mouth 34 or the like. In this example, since the drawing point P1 is located in the vicinity of the end of the package 30 in the winding width direction, the yarn 20 on the upstream side from the drawing point P1 becomes the yarn gathering plate as the yarn 20 is tensioned. 75 is in contact with the second guide 82. Then, when the yarn 20 is pulled upstream, the yarn path is moved toward the center of the package 30 in the winding width direction so as to slide on the inclination of the second guide portion 82 and the first guide portion 81. .

  Although not shown in the drawing, the lower thread guide pipe 25 shown in FIG. 2 sucks the yarn end on the yarn feeding bobbin 21 side in parallel with the upper thread guide pipe 26 capturing and guiding. Then, the yarn end is rotated upward, and the yarn end is guided to the splicer device 14. Thereafter, the yarn end on the package 30 side and the yarn end on the yarn feeding bobbin 21 side are spliced by the splicer device 14.

  Next, the unit controller 50 restarts the rotation of the package 30 and restarts the reciprocation of the traverse guide 28. FIG. 9 shows a state immediately after the rotation of the package 30 is started. By rotating the traverse guide 28 from this state in the direction of the thick arrow (the direction toward the small diameter side of the package 30), the thread 20 can be hung on the tip of the traverse guide 28.

  Here, although the drawing point P1 of the yarn 20 from the package 30 is in the vicinity of the end in the winding width direction as described above, the yarn 20 on the upstream side from the drawing point P1 is, as described above, the yarn gathering plate 75. Due to the action, the package 30 is brought closer to the center in the winding width direction. Therefore, since the traverse guide 28 can start hooking the yarn 20 from a position near the center of the traverse stroke, it is possible to effectively reduce the yarn hooking failure.

  In the conventional configuration in which the yarn shifting plates 75 and 76 are not provided, when the pull-out point P1 of the yarn end from the package 30 is in the vicinity of the end in the winding width direction, as shown in the comparative example of FIG. The yarn 20 had to be hooked with a slight stroke S1, and the yarn hooking was difficult. In particular, when the tension applied to the yarn 20 is weak, it is difficult to firmly hook the yarn 20 with the traverse guide 28, and the yarn hooking frequently occurs. Further, not only fails in threading, but also the traverse guide 28 tends to push out the thread 20 so as to exceed the traverse range, and the thread 20 is wound while protruding from the end face of the package 30 (end face dropping). In many cases, the quality was greatly reduced. In this respect, the winder unit 10 of the present embodiment includes the above-described yarn shifting plates 75 and 76, so that the yarn 20 can be reliably hung on the traverse guide 28 as described above, and a high-quality package is generated. be able to.

  However, the position of the pull-out point P1 of the yarn end from the package 30 is indefinite as described above, and is not limited to the example shown in FIG. When the drawing point P1 is located in the vicinity of the end portion on the opposite side to the case of FIG. 8 (that is, the large diameter side of the cone winding package), the first guide portion 81 and the second guide portion 82 of the yarn guide plate 76 By the action, the yarn 20 is brought to the center in the winding width direction. When the drawing point P1 is in the vicinity of the central portion in the winding width direction of the package 30, the yarn 20 is pulled out without contacting the first guide portion 81 and the second guide portion 82. However, the yarn 20 is originally from the package 30. Therefore, the yarn can be hooked onto the traverse guide 28 without any problem.

  Next, the arrangement of the second guide portion 82 in the yarn gathering plates 75 and 76 will be described. Since the second guide portion 82 is disposed at a steeper inclination angle than the first guide portion 81, when the yarn 20 is brought close by the yarn gathering plates 75 and 76 as described above, a portion of the second guide portion 82 is provided. It is sent to. Utilizing this fact, in the present embodiment, the position of the second guide portion 82 is set so that the yarn path can be guided to a point where the success rate of threading by the traverse guide 28 is high. That is, since the tip of the traverse guide 28 moves along an arcuate locus, the direction of the hook 63 of the traverse guide 28 (the angle of the yarn hooking groove 65) changes according to the traverse position. In the present embodiment, in consideration of this point, the position of the second guide portion 82 is the point where the relationship between the direction of the hook portion 63 and the angle of the yarn path becomes good, and the engagement between the traverse guide 28 and the yarn 20 is performed. It has been adjusted accordingly to get started. Thereby, the certainty of threading is further improved.

  When the yarn 20 is hung on the tip of the traverse guide 28, the yarn 20 is wound around the package 30 while being traversed by the traverse guide 28. As the yarn 20 traverses, the yarn 20 enters the gap 78 (inside the yarn gathering plates 75 and 76) from an opening 77 formed between the pair of yarn gathering plates 75 and 76. Thereafter, the yarn 20 is guided by the arc guide portion 72 of the guide plate 71 and no longer comes into contact with the yarn gathering plates 75 and 76, so that the yarn gathering plates 75 and 76 do not affect the traverse of the yarn 20. In this manner, the state shown in FIGS. 2 to 4 is restored, and the winding of the yarn 20 is continued.

  As described above, the automatic winder 1 according to this embodiment includes the bobbin setting unit 18, the cradle 23, the contact roller 29, the traverse guide 28, and the yarn gathering plates 75 and 76. The bobbin setting unit 18 supplies the yarn 20 wound around the yarn supplying bobbin 21. The cradle 23 rotatably holds the package 30 around which the yarn 20 supplied from the bobbin setting unit 18 is wound. The contact roller 29 rotates in contact with the package 30. The traverse guide 28 is provided independently of the contact roller 29. The traverse guide 28 engages the yarn 20 wound around the package 30 held by the cradle 23 and traverses the yarn 20. The yarn gathering plates 75 and 76 bring the yarn 20 closer to the center in the winding width direction of the package 30 by contacting the yarn 20 to which tension is applied before the traverse guide 28 engages the yarn 20. .

  Thus, when the splicer device 14 performs the yarn splicing and resumes the winding of the yarn 20, the traverse guide 28 is engaged with the yarn 20 that is brought closer to the center side in the winding width direction of the package 30. Can do. Therefore, the yarn 20 can be reliably hung on the traverse guide 28 and the traverse of the yarn 20 can be started smoothly.

  In the automatic winder 1 of the present embodiment, the outlines of the yarn gathering plates 75 and 76 have a first guide part 81 and a second guide part 82. The first guide portion 81 is disposed so as to be inclined at the first inclination angle so as to gradually move away from the bobbin set portion 18 side as approaching the winding width direction end portion of the package 30. The second guide portion 82 is disposed closer to the center side in the winding width direction of the package 30 than the first guide portion 81 and is connected to the end portion of the first guide portion 81. In addition, the second guide portion 82 is disposed to be inclined at the second inclination angle so as to gradually move away from the bobbin set portion 18 side as approaching the winding width direction end portion of the package 30. The second tilt angle is steeper than the first tilt angle.

  As a result, before the traverse guide 28 engages the yarn 20, the yarn 20 is finally brought into contact with the second guide portion 82 having a steep inclination angle. Accordingly, by appropriately determining the position of the second guide portion 82, the traverse guide 28 can hook the yarn 20 at a favorable position where the traverse guide 28 can easily engage with the yarn 20. Therefore, the yarn 20 is more reliably hooked on the traverse guide 28. be able to.

  In the automatic winder 1 of the present embodiment, the first guide part 81 and the second guide part 82 are arranged on both sides of the package 30 in the winding width direction.

  As a result, when the winding of the yarn 20 is resumed, the yarn 20 is placed at the center in the winding width direction of the package 30 regardless of which end point P1 of the yarn end is located at any end in the winding width direction of the package 30. Can be brought to the side. Therefore, the engagement of the yarn 20 by the traverse guide 28 can be reliably started.

  In the automatic winder 1 of the present embodiment, the traverse guide 28 includes a hook portion 63 that opens one side of the yarn 20 in the traverse direction (the smaller diameter side of the cone winding package). And the 1st guide part 81 and the 2nd guide part 82 with which the yarn gathering plate 75 is provided are arrange | positioned in the winding width direction of the package 30 on the same side (small diameter side of a cone winding package) as the open side of the hook part 63. Yes.

  Thereby, the thread | yarn 20 can be easily hung on the hook part 63 of the traverse guide 28 from an open side.

  The automatic winder 1 according to this embodiment includes a guide plate 71 that guides the yarn path of the yarn 20 that is traversed while being engaged with the traverse guide 28.

  Thus, after the yarn 20 is hung on the traverse guide 28, the yarn 20 is traversed by the traverse guide 28 while being properly guided by the guide plate 71 without contacting the yarn shifting plates 75 and 76 and wound. Taken. Therefore, the yarn gathering plates 75 and 76 can be prevented from affecting the winding of the package 30, so that the high-quality package 30 can be formed.

  In the automatic winder 1 of the present embodiment, the yarn moving plates 75 and 76 are configured by plate-like members.

  This realizes a configuration in which the yarn 20 is less likely to get tangled at the portions of the yarn gathering plates 75 and 76, so that the winding operation can be performed smoothly.

  The automatic winder 1 according to this embodiment includes a traverse guide drive motor 45 that drives the traverse guide 28. The traverse guide 28 is formed in an arm shape having a tip end portion provided with a portion (yarn hooking groove 65) for engaging the yarn 20 and a base end portion to which the driving force from the traverse guide drive motor 45 is transmitted. Has been. When the traverse guide 28 is driven by the traverse guide drive motor 45, the distal end portion of the traverse guide 28 reciprocates along an arcuate path.

  In general, it is difficult to engage the yarn 20 at the tip of the traverse guide 28 that moves along an arcuate path. However, according to the above configuration, since the yarn 20 is preliminarily moved toward the center in the winding width direction of the package 30 by the yarn shifting plates 75 and 76, the yarn 20 can be reliably engaged by the traverse guide 28. .

  The automatic winder 1 according to the present embodiment includes a splicer device 14 and an upper thread guide pipe 26. The splicer device 14 joins the yarn end on the bobbin set unit 18 side and the yarn end on the package 30 side when the continuous state of the yarn 20 between the bobbin set unit 18 and the package 30 is divided. The upper yarn guide pipe 26 captures the yarn end on the package 30 side and guides it to the splicer device 14.

  As a result, in the automatic winder 1 that performs the yarn splicing operation as necessary during winding of the package 30, the traverse guide 28 can reliably engage the yarn 20, so that winding can be smoothly resumed. it can. As a result, the production efficiency of the package 30 can be improved.

  Next, a second embodiment will be described. FIG. 11 is an enlarged front view showing a configuration around the traverse device 27 in the winder unit 10 of the second embodiment. In the following description of the present embodiment, the same or similar members as those in the first embodiment described above may be denoted by the same reference numerals in the drawings, and description thereof may be omitted.

  In the winding part 17x of 2nd Embodiment shown in FIG. 11, the yarn gathering plates 75x and 76x arrange | positioned by a pair have a part which overlaps in the thickness direction. The overlap portion 77x is disposed so as to correspond to the central portion of the package 30 in the winding width direction. In the overlap portion 77x, a gap in the plate thickness direction is formed between the yarn gathering plates 75x and 76x, and the yarn 20 can enter the inside of the yarn gathering plates 75x and 76x from this gap.

  Next, a third embodiment will be described. FIG. 12 is a front view and a block diagram of the winder unit 10 in the third embodiment. FIG. 13 is an enlarged front view showing a configuration around the traverse device 27. FIG. 14 is a schematic side view of the traverse device 27.

  In the winding unit 17y of the third embodiment, the direction of the traverse device 27 is different from that of the other embodiments. That is, in this embodiment, as shown in FIG. 14, when viewed in the direction of a straight line connecting one end side and the other end side of the traverse stroke (the axial direction of the contact roller 29), the longitudinal direction of the traverse guide 28 is The winder unit 10 is disposed substantially perpendicular to the installation surface. In other words, in the present embodiment, the traverse guide 28 is reciprocated in a plane substantially perpendicular to the installation surface of the winder unit 10. In addition, the arm main body 60 of the traverse guide 28 does not have the bent portion provided in the other embodiments, and has a straight shape.

  The guide plate 71y is configured as a flat member having no conical curved portion, and an arc guide portion 72y formed in an arc shape that protrudes upward is formed at an upper end portion thereof. In the guide plate 71y, guide plate portions 75y and 76y are arranged on the surface facing the opposite side of the traverse guide 28 (the surface facing the front side of the winder unit 10).

  The two guide plate portions 75y and 76y are configured by bending one plate-like member (that is, the guide plate portions 75y and 76y on both sides are integrated). In the first embodiment, the polygonal edge as shown in FIG. 3, that is, the first guide portion 81 and the second guide portion 82 are arranged on one side in the winding width direction of the package 30 in this embodiment ( It is formed only on the guide plate portion 75y disposed on the open side of the hook portion 63 of the traverse guide 28. Accordingly, in the present embodiment, only the one side guide plate portion 75y corresponds to the yarn shifting portion of the present invention.

  Similar to the second embodiment described above, the guide plate portions 75y and 76y have portions that overlap in the thickness direction (see FIG. 13). In the overlap portion 77y, a gap in the plate thickness direction is formed between the two guide plate portions 75y and 76y, and the yarn 20 can pass through this gap.

  Although the preferred embodiment of the present invention has been described above, the above configuration can be changed as follows, for example.

  The configuration of the yarn gathering portion (for example, the yarn gathering plates 75 and 76 of the first embodiment) is not limited to the above, and can be appropriately changed. For example, at least one of the first guide part 81 and the second guide part 82 can be formed in a curved shape instead of a linear shape.

  The yarn gathering plates 75 and 76 of the first embodiment and the yarn gathering plates 75x and 76x of the second embodiment can be changed to be configured by one member.

  One side of the first guide portion 81 and the second guide portion 82 disposed on both sides in the winding width direction of the package 30 while being substantially symmetric in the first embodiment and the second embodiment can be omitted. In this case, it is preferable to omit the first guide portion 81 and the second guide portion 82 that are located on the side opposite to the open side formed in the hook portion 63 of the traverse guide 28.

  Instead of disposing the first guide part 81 and the second guide part 82 at the edge of the plate-like members (yarn gathering plates 75 and 76), for example, a rod-like shape used in the guide frame of Patent Document 1 A function equivalent to that of the above-described embodiment can be realized by appropriately bending the member in the shape of the first guide portion 81 and the second guide portion 82. However, the plate-like member is preferable in that the thread 20 is less likely to get entangled compared to the rod-like member.

  The shape of the traverse guide 28 can be changed as appropriate. For example, a shape that opens the large diameter side of the cone winding package can be adopted as the shape of the hook portion 63. In this case, for example, in the configuration of FIG. 13, the positional relationship between the guide plate portions 75y and 76y is reversed so that the first guide portion 81 and the second guide portion 82 are located on the same side as the open side of the hook portion 63. It is preferable to make it.

  In the above embodiment, the case where a corn-wrapped package is formed has been described as an example. However, the present invention can also be applied to an automatic winder configured to form a cheese-shaped package.

  The present invention can be applied not only to an automatic winder but also to other yarn winding machines such as a winding machine and a spinning machine (for example, an air spinning machine and an open-end spinning machine).

1 Automatic winder (yarn winding machine)
14 Splicer device (yarn splicing device)
18 Bobbin setting part (yarn feeding part)
23 Cradle 26 Upper thread guide pipe (capture guide)
28 Traverse guide 29 Contact roller 30 Package 45 Traverse guide drive motor (drive unit)
63 Hook (thread hook)
71 Guide plate (thread path guide)
75,76 Yarn gathering plate (yarn gathering part)
81 1st guide part 82 2nd guide part

Claims (8)

A yarn supplying section for supplying yarn;
A cradle that rotatably holds a package around which the yarn supplied by the yarn supplying unit is wound,
A contact roller that rotates in contact with the package;
A traverse guide that is provided independently of the contact roller, engages a yarn wound around the package held by the cradle, and traverses the yarn;
A yarn feeder that brings the yarn closer to the center in the winding width direction of the package by contacting the yarn to which tension is applied at a stage before the traverse guide engages the yarn;
A yarn winding machine comprising: The yarn winding machine according to claim 1,
The outline of the yarn gathering portion is
A first guide portion arranged to be inclined at a first inclination angle so as to gradually move away from the yarn feeding portion side as approaching the winding width direction end portion of the package;
It is arranged closer to the winding width direction center side of the package than the first guiding portion and is connected to the end portion of the first guiding portion, and gradually from the yarn feeding portion side as approaching the winding width direction end portion of the package. A second guide portion arranged to be inclined at a second inclination angle so as to move away;
Have
The yarn winding machine characterized in that the second inclination angle is steeper than the first inclination angle. A yarn winding machine according to claim 2,
The yarn winding machine, wherein the first guide portion and the second guide portion are respectively disposed on both sides in the winding width direction of the package. A yarn winding machine according to claim 2 or 3,
The traverse guide includes a hook-shaped thread hook that opens one side in the traverse direction of the thread,
The yarn winding machine, wherein the first guide portion and the second guide portion are disposed at least on the same side as the open side of the yarn hooking portion in the winding width direction of the package. A yarn winding machine according to any one of claims 1 to 4,
A yarn winding machine comprising a yarn path guide portion that guides a yarn path of a yarn traversed while being engaged with the traverse guide. A yarn winding machine according to any one of claims 1 to 5,
The yarn winding machine, wherein the yarn gathering portion is formed of a plate-like member. A yarn winding machine according to any one of claims 1 to 6,
A drive unit for driving the traverse guide;
The traverse guide is formed in an arm shape having a distal end portion provided with a portion for engaging a thread and a proximal end portion to which a driving force from the driving portion is transmitted,
The yarn winding machine, wherein the base end portion of the traverse guide is driven by the driving portion, so that the distal end portion of the traverse guide reciprocates along an arcuate locus. A yarn winding machine according to any one of claims 1 to 7,
A yarn joining device that joins the yarn end on the yarn feeding portion side and the yarn end on the package side when the continuous state of the yarn between the yarn feeding portion and the package is divided;
A catching guide for catching the yarn end on the package side and guiding it to the yarn joining device;
A yarn winding machine comprising:

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