JP2013063807A - Traverse guide, winding unit, and yarn winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traverse guide configured to improve durability of a yarn hooking part (a yarn guide part), while reducing a load on a motor for driving an arm-shaped traverse guide.SOLUTION: This traverse guide includes an arm body 60, and a ceramics yarn guide piece 70. The arm body 60 includes an installation groove 63a positioned at an end of a longitudinal one side and opened on the other longitudinal side. The yarn guide piece 70 is arranged inside the installation groove 63a, and includes a yarn hooking groove 70a opened on the other longitudinal side. Yarn is traversed by reciprocating the arm body 60 while hooking the yarn on the yarn hooking groove 70a.

Description

  The present invention mainly relates to a traverse guide for traversing a yarn.

  Conventionally, a traverse guide including an arm portion and a thread hook portion is known. The arm portion is an elongated member, and a yarn hooking portion is connected to the tip. A groove or the like for hooking and holding the yarn is formed in the yarn hooking portion. The traverse guide can traverse the yarn with respect to the package when the arm portion is reciprocated by a motor or the like while the yarn hooking portion holds the yarn. Patent document 1 discloses this kind of traverse guide.

  The traverse guide of Patent Document 1 includes an arm portion composed of two plate members and a hook-shaped thread hook portion. The two plate members constituting the arm portion are arranged so as to face each other with a gap. With this configuration, it is possible to reduce the air resistance of the arm portion that accompanies the reciprocating motion, thereby reducing the load on the motor that drives the arm portion.

  Further, Patent Document 1 includes CFRP (carbon fiber reinforced plastics), inorganic fibers (glass fibers, ceramic fibers, etc.) and organic fibers (aramid fibers, PBO fibers, ultra high molecular weight polyethylene, etc.) as the material of the arm portion. Composite materials, alloys including lightweight metals (magnesium, beryllium, aluminum, titanium, etc.) and the like are disclosed.

JP 2010-137944 A

  By the way, since the yarn hooking portion is worn by contact with the yarn, the yarn hooking portion is preferably composed of a wear-resistant member such as ceramics. However, since ceramics are relatively heavy, a load is applied to the motor that drives the arm portion. In particular, since the yarn hooking portion is connected to one end of the arm portion, for example, when the arm portion is reciprocally turned around the other end of the arm portion, the inertia increases and the load applied to the motor increases. To do.

  In addition, since members having wear resistance such as ceramics generally have high hardness, they tend to be low in toughness and easily cracked. Since the traverse guide continuously traverses the yarn at a high speed, improvement in durability is required.

  The present invention has been made in view of the above circumstances, and its object is to improve the durability of the yarn hooking portion (yarn guide portion) while reducing the load on the motor that drives the arm-shaped traverse guide. It is to provide a traverse guide of the configuration.

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 a first aspect of the present invention, a traverse guide having the following configuration is provided. That is, the traverse guide includes an arm main body and a yarn guide portion. The arm body is located at a first end portion that is one side in the longitudinal direction, and an attachment groove that is opened in a direction of a second end portion that is opposite to the first end portion in the longitudinal direction. It has a formed frame. The yarn guide portion is made of ceramics, and is disposed on the groove wall of the frame, and a yarn hooking groove that is opened in the direction of the second end portion is formed.

  Thereby, since the contact part of the thread | yarn in a traverse is a product made from ceramics, the traverse guide of the structure excellent in abrasion resistance is realizable. In addition, since the frame body of the arm main body is disposed so as to cover the yarn guide portion, the yarn guide portion can be reliably held and durability can be improved.

  In the traverse guide, it is preferable that the arm main body and the yarn guide portion are bonded by an adhesive.

  This eliminates the need to form a fixing hole or the like for fixing the yarn guide portion to the arm body, thereby reducing the manufacturing cost of the traverse guide.

  In the traverse guide, it is preferable that the arm main body and the yarn guide portion are bonded so that a boundary between the attachment groove and the yarn guide portion is covered with an adhesive.

  Thereby, even when a step is generated at the boundary between the mounting groove and the yarn guide portion, the yarn can be prevented from being caught by the step when the yarn is captured by the traverse guide. Therefore, occurrence of thread breakage or the like can be prevented.

  In the traverse guide, it is preferable that a positioning portion for positioning the yarn guide portion with respect to the arm main body is formed in the arm main body.

  Thereby, since the positional accuracy (attachment accuracy) of the yarn guide portion can be improved, the step generated at the boundary between the attachment groove and the yarn guide portion can be reduced.

  In the traverse guide, the positioning portion is preferably formed so that the yarn guide portion is inserted into the mounting groove from one side in the thickness direction of the arm body.

  Thereby, since the yarn guide portion can be easily positioned, the operator can quickly perform the attaching operation.

  The traverse guide preferably has the following configuration. That is, the yarn hooking groove is formed in a long hole shape with one end open. Further, the longitudinal direction of the long hole coincides with the longitudinal direction of the arm body.

  Thereby, since the length of the yarn hooking groove can be made relatively long, it is possible to realize a configuration in which the yarn is not easily detached from the yarn hooking groove during the traverse.

  In the traverse guide, the material of the arm body is preferably a magnesium alloy, an aluminum alloy, or a resin.

  Thereby, since the magnesium alloy, the aluminum alloy, and the resin are generally lighter than the ceramic, it is possible to reduce the weight of the traverse guide as compared with the configuration in which the entire traverse guide (or the entire frame) is made of ceramics. it can. Therefore, for example, the load on the motor that drives the traverse guide can be suppressed.

  In the traverse guide, it is preferable that a guide surface for guiding the contacted yarn to the yarn hooking groove is formed on each of the arm main body and the yarn guide portion.

  Thus, since guide surfaces are formed on both the arm main body and the yarn guide portion, the yarn can be guided to the vicinity of the yarn hooking groove when the yarn is captured by the traverse guide. Therefore, the traverse guide can reliably capture the yarn.

  According to the 2nd viewpoint of this invention, the winding unit of the following structures is provided. That is, the winding unit includes the traverse guide, a traverse guide driving unit, and a cradle. The traverse guide hangs a yarn in the yarn hooking groove and traverses the yarn. The traverse guide driving unit drives the traverse guide. The cradle holds a package formed by traversing the yarn by the traverse guide.

  Thereby, since the load applied to the traverse guide driving unit is reduced, the winding unit can traverse the yarn at a high speed by the traverse guide. As a result, the production efficiency of the winding unit can be improved.

  According to the 3rd viewpoint of this invention, the yarn winding machine of the structure provided with two or more said winding units is provided.

  Thereby, a package can be efficiently formed by a plurality of winding units.

The front view of the automatic winder which concerns on one Embodiment of this invention. The front view and block diagram of a winder unit. The schematic side view of a traverse apparatus. The perspective view which shows the structure of an arm main body and a thread | yarn guide piece. The figure which shows a mode when the level | step difference produced between an arm main body and a thread | yarn guide piece and the said level | step difference is covered with the adhesive agent. The perspective view explaining the attachment method of an arm main body and a thread | yarn guide piece.

  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 the present embodiment, the yarn 20 unwound from the yarn supplying bobbin 21 in the yarn supplying unit 16 is wound up by the winding unit 17, so that the yarn supplying unit 16 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.

  When the package 30 becomes full in each winder unit 10, the automatic doffing device 8 travels to the position of the winder unit 10, collects the full package 30, and winds around which the yarn 20 is not wound. A take-up bobbin (empty take-up 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, the setting with respect to each winder unit 10 can be performed. The display unit 92 can display the winding state of the yarn 20 of each winder unit 10 and the content of the trouble that has occurred.

  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. FIG. 3 is a schematic side view of the traverse device 27.

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

  The unit controller 50 includes, for example, a CPU and a ROM. The ROM stores a program for controlling each component of the winding unit main body 11. The CPU executes a program stored in the ROM.

  The winding unit body 11 includes a yarn supplying section 16 in order from the yarn supplying bobbin 21 side in a yarn traveling path between the yarn supplying bobbin 21 and the winding bobbin (winding tube, paper tube, core tube) 22. And a yarn unwinding assisting device 12, a tension applying device 13, a splicer device 14, a clearer (yarn quality measuring device) 15, and a winding unit 17.

  The yarn supplying section 16 is disposed at the lower part of the winding unit main body 11. The yarn supplying section 16 is configured to hold a yarn supplying bobbin 21 supplied by a bobbin conveying system (not shown) or a magazine type bobbin supplying device at a predetermined position.

  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 and improve the quality of the package 30. In addition to the gate type, for example, a disk type 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 analyzer 53 may be provided in the unit controller 50. The clearer 15 may be configured to detect the presence or absence of foreign matter contained in the yarn 20 as a yarn defect.

  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 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 traverse device 27, and a contact roller 29 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 rotates the increase in the yarn layer diameter of the package 30 as the yarn 20 is wound around the winding bobbin 22. It can be absorbed by moving. In other words, 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. Further, the cradle 23 and the traverse device 27 are configured to be able to form a cone-shaped package 30 as shown in FIG. 2 by winding the yarn 20 around the cone-shaped winding bobbin 22.

  The cradle 23 is attached 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. Note that a package drive motor control unit independent from 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 contact the peripheral surface of the winding bobbin 22 or the peripheral surface of the package 30. The contact roller 29 is configured to rotate following the rotation of the winding bobbin 22 or the package 30.

  The traverse device 27 is an arm type traverse device, and traverses the yarn 20 to the surface of the package 30. The winding unit 17 is configured to be able 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 (traverse guide drive unit) 45, and a guide plate 52 as main components.

  The traverse guide 28 is an elongated member configured to be rotatable around a support shaft. A thread hooking groove 70a (see FIG. 5 (a) and the like to be described later) is formed at the first end of the traverse guide 28 (the side close to the thread 20 and the tip side) so that the thread 20 can be hooked. ing. On the other hand, the second end portion (base end side) of the traverse guide 28 is reinforced by the boss portion 46 and is fixed to the drive shaft 45 a of the traverse guide drive motor 45.

  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 detailed shape and configuration of the traverse guide 28 will be described later.

  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 first end portion (the yarn hooking groove 70a) of the traverse guide 28. Accordingly, the traverse device 27 reciprocates the first end portion of the traverse guide 28 in the winding width direction of the package 30 to traverse the yarn 20 to the package surface. Accordingly, 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 a yarn layer formed on the outer peripheral surface of the winding bobbin 22 has a desired density. 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. A guide plate 52 is disposed on the upstream side of the traverse guide 28. The guide plate 52 guides the yarn 20 so that it can be captured by the traverse guide 28 by bending the yarn path of the yarn 20 upstream of the guide plate 52 toward the contact roller 29 side.

  Further, as shown in FIG. 3, when the drive shaft 45a of the traverse guide drive motor 45 is viewed in the direction of a 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 52 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 52. That is, in this embodiment, the traverse device 27 is configured to reciprocate the traverse guide 28 in a substantially horizontal plane with respect to the installation surface of the winder unit 10.

  Next, the shape and configuration of the traverse guide 28 will be described in detail with reference to FIGS. FIG. 4 is a perspective view showing configurations of the arm main body 60 and the yarn guide piece 70. FIG. 5 is a view of the arm body 60 and the thread guide piece 70 as viewed in the thickness direction. FIG. 6 is a perspective view for explaining a method of attaching the arm main body 60 and the thread guide piece 70.

  As shown in FIG. 4, the traverse guide 28 includes an arm main body 60 and a yarn guide piece (yarn guide portion) 70. The arm body 60 is an elongated plate material made of a lightweight metal such as a magnesium alloy or an aluminum alloy, or a high-strength resin. As shown in FIG. 4, the arm main body 60 includes an arm portion 61, a bent portion 62, and a hook portion (frame body) 63.

  The arm portion 61 occupies most of the arm main body 60. The arm portion 61 is formed with a plurality of holes in the central portion, and a shaft hole 61a, a key groove 61b, and a fixing hole 61c are formed in the second end portion. Note that the number of holes formed in the arm portion 61 may be one or may be omitted.

  The shaft hole 61a is formed in a round hole shape, and the drive shaft 45a of the traverse guide drive motor 45 is inserted therein. The key groove 61b is formed as a groove having a rectangular cross-sectional outline, and is a groove for key coupling with the drive shaft 45a. Three fixing holes 61c are formed so as to surround the shaft hole 61a, and are holes for fixing the boss portion 46. That is, a screw hole is formed in the boss portion 46 so as to correspond to the position of the fixing hole 61c. The screw hole and the fixing hole 61c are combined and tightened with a bolt or the like, so that the traverse guide 28 The boss portion 46 can be fixed. The number of fixing holes 61c is not particularly limited.

  The bent portion 62 is formed between the arm portion 61 and the hook portion 63. As shown in FIG. 3, the bent portion 62 is bent in a direction in which the hook portion 63 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. Therefore, the winder unit 10 can form a high-quality package 30.

  The hook portion 63 is a portion constituting the first end portion of the arm body 60, and is configured in a frame shape and a hook shape. As shown in FIG. 6 and the like, the hook portion 63 is formed with a mounting groove 63a, a guide surface 63b, and a positioning portion 63c.

  The attachment groove 63a is formed to be elongated in the longitudinal direction of the arm body 60 when viewed in the thickness direction of the arm body 60 (see FIG. 5A). Further, the mounting groove 63a is formed so as to open the end of one side of the long hole (in the direction of the second end of the arm body 60). As shown in FIG. 5A and the like, the yarn guide piece 70 is attached to the inside of the attachment groove 63a. That is, the hook portion 63 is held so as to surround the yarn guide piece 70.

  The guide surface 63b is a surface formed so as to be inclined obliquely from the outside of the hook portion 63 to the inside (open portion of the mounting groove 63a). The guide surface 63 b guides the yarn 20 to the yarn hooking groove 70 a when the yarn 20 is captured by the traverse guide 28.

  The positioning portion 63 c is used for positioning when the yarn guide piece 70 is attached to the arm body 60. As shown in FIG. 6, the positioning portion 63 c is a stepped portion formed on the wall surface constituting the mounting groove 63 a.

  The yarn guide piece 70 is attached to the groove wall of the hook portion 63 (inside the attachment groove 63a). The yarn guide piece 70 is made of a ceramic material. As shown in FIG. 6 and the like, the yarn guide piece 70 is formed with a yarn hooking groove 70a, a guide surface 70b, and a stepped portion 70c.

  The yarn hooking groove 70a has the same shape as the mounting groove 63a. Therefore, the yarn hooking groove 70a can be expressed as a groove formed so as to open one end of the long hole (in the direction of the second end of the arm body 60). The yarn hooking groove 70a is formed so that the longitudinal direction of the yarn hooking groove 70a coincides with the longitudinal direction of the arm body 60. After the yarn 20 is captured by the traverse guide 28, the yarn 20 is positioned inside the yarn hooking groove 70a. The yarn 20 is traversed with respect to the package 30 when the wall surface forming the yarn hooking groove 70 a pushes the yarn 20 as the traverse guide 28 reciprocates. In addition, since the direction of the 1st edge part of the arm main body 60 is closed and the direction of the 2nd edge part is open | released, the thread hooking groove 70a of this embodiment is the direction of a 1st edge part. Even if the facing force acts on the yarn 20, the yarn 20 does not come off the yarn hooking groove 70a.

  The guide surface 70b is a surface formed so as to be linearly continuous with the guide surface 63b of the arm body 60. When the yarn 20 is captured by the traverse guide 28, the yarn 20 is guided to the yarn hooking groove 70a via the guide surface 63b and the guide surface 70b. In addition, since the yarn 20 can be guided to the vicinity of the yarn hooking groove 70a by forming the guide surface 70b, the traverse guide 28 can reliably capture the yarn 20.

  The stepped portion 70 c is used for positioning when the yarn guide piece 70 is attached to the arm body 60. As shown in FIG. 6, the stepped portion 70 c is a stepped portion formed on the outer peripheral surface of the yarn guide piece 70. The stepped portion 70c is configured in a shape corresponding to the positioning portion 63c, and the yarn guide piece 70 can be positioned by combining the stepped portion 70c and the positioning portion 63c.

  Thus, the yarn guide piece 70 is disposed so that almost the entire outer peripheral surface thereof is covered with the hook portion 63 of the arm body 60. For this reason, the arm body 60 can reliably hold the yarn guide piece 70.

  Next, the process of attaching the yarn guide piece 70 to the arm body 60 will be described with reference to FIGS.

  In the present embodiment, the thread guide piece 70 is attached to the arm body 60 with an adhesive. Specifically, the worker applies an adhesive to at least one of the wall surface constituting the attachment groove 63 a and the outer peripheral surface of the yarn guide piece 70. At this time, the operator adjusts the application amount of the adhesive so that the adhesive slightly protrudes from the boundary between the arm body 60 and the thread guide piece 70 during bonding.

  Next, the operator inserts the thread guide piece 70 into the attachment groove 63a from one side in the thickness direction of the arm body 60 (see FIG. 6). Thereby, the yarn guide piece 70 is positioned at a position where the positioning portion 63c and the stepped portion 70c come into contact with each other, and the arm body 60 and the yarn guide piece 70 can be bonded.

  Note that a step may occur at the boundary between the arm body 60 and the yarn guide piece 70. Such a level difference may cause the yarn 20 to be caught and cause yarn breakage in some places. Examples of the step that causes thread breakage include a step that occurs at the boundary between the guide surface 63b and the guide surface 70b (see symbol A in FIG. 5A), a base end portion of the yarn guide piece 70, and an arm body. Steps that occur at the boundary with 60 (see reference numeral B in FIG. 5A).

  In this respect, in the present embodiment, as described above, the adhesive is applied to such an extent that the adhesive protrudes slightly from the boundary between the arm body 60 and the thread guide piece 70. Therefore, by intentionally protruding the adhesive to the stepped portion, the step can be smoothed or a gentle convex portion covering the step can be formed (see FIG. 5B). In addition, in FIG.5 (b), although it is the structure which the adhesive protrudes only in the vicinity of the level | step difference shown with the code | symbol A and B, you may apply | coat an adhesive so that the other boundary may be covered.

  As described above, the traverse guide 28 of the present embodiment includes the arm main body 60 and the yarn guide piece 70. The arm main body 60 has a hook portion 63 formed with a mounting groove 63a that is located at the first end portion and is opened in the direction of the second end portion. The yarn guide piece 70 is made of ceramics and is disposed on the groove wall of the hook portion 63. The yarn guide piece 70 is formed with a yarn hooking groove 70a that is opened in the direction of the second end of the arm body 60.

  Thereby, since the part which the thread | yarn 20 contacts is ceramics, the traverse guide 28 of the structure excellent in abrasion resistance is realizable. Moreover, since the hook part 63 is arrange | positioned so that the thread guide piece 70 may be covered, the thread guide piece 70 can be hold | maintained reliably and durability can be improved.

  In the traverse guide 28 of the present embodiment, the arm body 60 and the yarn guide piece 70 are bonded to each other with an adhesive.

  Thereby, since it is not necessary to form a fixing hole for fixing the yarn guide piece 70 to the arm body 60, it is possible to reduce the manufacturing cost of the parts.

  In the traverse guide 28 of this embodiment, the arm body 60 and the thread guide piece 70 are bonded so that the boundary between the mounting groove 63a and the thread guide piece 70 is covered with an adhesive.

  Accordingly, even when a step is generated at the boundary between the attachment groove 63a and the yarn guide piece 70, the yarn 20 can be prevented from being caught by the step when the yarn 20 is captured by the traverse guide 28 or the like. Therefore, occurrence of thread breakage or the like can be prevented.

  In the traverse guide 28 of the present embodiment, the arm body 60 is formed with a positioning portion 63 c that positions the yarn guide piece 70 with respect to the arm body 60.

  Thereby, since the positional accuracy of the thread guide piece 70 can be improved, the level | step difference produced in the boundary of the attachment groove | channel 63a and the thread guide piece 70 can be made small.

  Further, the traverse guide 28 of the present embodiment is formed so that the yarn guide piece 70 is inserted into the attachment groove 63a from one side in the thickness direction of the arm body 60.

  Thereby, since the thread guide piece 70 can be easily positioned, the operator can quickly perform the attaching operation.

  Further, in the traverse guide 28 of the present embodiment, the yarn hooking groove 70a is formed in a long hole shape whose base end side is open. Further, the longitudinal direction of the long hole coincides with the longitudinal direction of the arm body 60.

  Thereby, since the length of the yarn hooking groove 70a can be made relatively long, it is possible to realize a configuration in which the yarn 20 is not easily detached from the yarn hooking groove 70a during the traverse.

  Further, in the traverse guide 28 of the present embodiment, guide surfaces 63b and 70b for guiding the contacted yarn 20 to the yarn hooking groove 70a are formed on the arm body 60 and the yarn guide piece 70, respectively.

  Thereby, since guide surfaces are formed on both the arm main body 60 and the yarn guide piece 70, the yarn 20 can be guided to the vicinity of the yarn hooking groove 70a when the yarn 20 is captured by the traverse guide 28. Accordingly, the traverse guide 28 can reliably capture the yarn 20.

  The preferred embodiment of the present invention has been described above, but the above configuration can be modified as follows, for example.

  The material of the arm body 60 is preferably a lightweight metal or resin as described in the above embodiment, but may be other materials such as the material disclosed in Patent Document 1. As another material of the arm body 60, for example, a carbon fiber composite material, specifically, a fiber reinforced plastic made of carbon fiber, boron fiber, aramid fiber, or the like can be considered.

  The first end of the arm main body 60 may not be configured in a hook shape as long as it has a frame shape and an attachment groove is formed.

  The yarn guide piece 70 is not limited to the shape described in the above embodiment. For example, it can be set as the structure which does not have the guide surface 70b.

  In the above-described embodiment, the positioning portion 63c and the stepped portion 70c are formed in a stepped shape, but may have a configuration other than the stepped shape. For example, the convex part which protrudes inside from the attachment groove | channel 63a may be formed, and the structure which forms the recessed part of the shape corresponding to the said convex part in the outer peripheral surface of the thread guide piece 70 may be sufficient.

  The method of attaching the thread guide piece 70 to the arm body 60 is not limited to the adhesive, and may be a configuration using bolts, for example.

  In the above-described embodiment, a general cone winding package has been described as an example, but the present invention can be applied to, for example, a taper-shaped package or a cheese-shaped package.

  As described above, the traverse device 27 is not limited to the configuration in which the traverse guide 28 is driven to reciprocate in a substantially horizontal plane with respect to the installation surface of the winder unit 10. For example, as in Patent Document 1 (Japanese Patent Application Laid-Open No. 2010-137944), a configuration (conventional configuration) in which the longitudinal direction of the traverse arm is substantially perpendicular to the installation surface of the winder unit.

  The package drive motor 41 is not limited to a servo motor, and various motors such as a step motor and an induction motor can be used. Further, the contact roller 29 may be driven by an appropriate driving device so that the package 30 is driven to rotate.

  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)
10 Winder unit (winding unit)
27 Traverse device 28 Traverse guide 45 Traverse guide drive motor (traverse guide drive unit)
60 Arm body 61 Arm part 62 Bending part 63 Hook part (frame)
63a Mounting groove 63b Guide surface 63c Positioning part 70 Thread guide piece (Thread guide part)
70a Yarn catching groove 70b Guide surface 70c Stepped portion

Claims (10)

A frame formed with a mounting groove that is located at a first end that is one side in the longitudinal direction and that opens in the direction of the second end that is opposite to the first end in the longitudinal direction. An arm body having
A thread guide portion made of ceramics, which is disposed in the groove wall of the frame body and in which a thread hook groove that is opened in the direction of the second end portion is formed;
A traverse guide comprising: The traverse guide according to claim 1,
The traverse guide, wherein the arm main body and the thread guide portion are bonded with an adhesive. The traverse guide according to claim 2,
The traverse guide, wherein the arm main body and the yarn guide portion are bonded so as to cover the boundary between the attachment groove and the yarn guide portion with an adhesive. The traverse guide according to any one of claims 1 to 3,
The traverse guide according to claim 1, wherein a positioning portion for positioning the yarn guide portion with respect to the arm main body is formed in the arm main body. The traverse guide according to claim 4,
The traverse guide, wherein the positioning portion is formed so that the yarn guide portion is inserted into the attachment groove from one side in the thickness direction of the arm body. The traverse guide according to any one of claims 1 to 5,
The yarn hooking groove is formed in a long hole shape with one end open,
The traverse guide characterized in that the longitudinal direction of the long hole and the longitudinal direction of the arm body coincide. The traverse guide according to any one of claims 1 to 6,
A material for the arm body is a magnesium alloy, an aluminum alloy, or a resin. The traverse guide according to any one of claims 1 to 7,
Each of the arm main body and the yarn guide portion is formed with a guide surface for guiding the contacted yarn to the yarn hooking groove. The traverse guide according to any one of claims 1 to 8, wherein a yarn is hung in the yarn hooking groove to traverse the yarn.
A traverse guide driving unit for driving the traverse guide;
A cradle that holds a package formed by traversing the yarn by the traverse guide;
A winding unit comprising:   A yarn winding machine comprising a plurality of winding units according to claim 9.

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