Yarn winder

Abstract

Provided is a yarn winder capable of reliably reducing local wear of fulcrum guides and not requiring bearings for the fulcrum guides. A plurality of fulcrum guides (16) are configured as rollers having a central axis, hook a yarn (Y) on an outer peripheral surface thereof, and do not rotate around the central axis during winding of the yarn. A moving mechanism moves the plurality of fulcrum guides (16) between a winding position during winding of the yarn and a hooking position during a hooking operation, and a rotating mechanism (30) automatically rotates one or more of the fulcrum guides (16) around the central axis when the plurality of fulcrum guides (16) are moved between the winding position and the hooking position by the moving mechanism.

Description

Technical Field

[0001] This invention relates to a wire winding machine, which winds multiple wires onto multiple bobbins mounted on the winding shaft while simultaneously moving laterally with multiple fulcrum guides arranged axially on the winding shaft. Background Technology

[0002] A type of yarn winding machine has been known for winding multiple yarns spun from a spinning device onto multiple bobbins mounted on a winding shaft while moving them laterally. In this type of yarn winding machine, multiple fulcrum guides are arranged along the axial direction of the winding shaft to serve as fulcrums for the lateral movement of the yarns. For example, in Patent Documents 1 and 2, a roller-shaped fulcrum guide (a guide roller in Patent Document 2) with a central axis extending in a direction orthogonal to the axial direction of the winding shaft is provided, and the yarn is hooked on the outer circumferential surface of the fulcrum guide. In Patent Document 1, the fulcrum guide is configured such that it does not rotate around the central axis during yarn winding. Furthermore, in Patent Document 2, the fulcrum guide is a roller capable of freely rotating around the central axis.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2013-23787

[0004] Patent Document 2: Japanese Patent Publication No. 2008-531438

[0005] As in Patent Document 1, when the fulcrum guide does not rotate during yarn winding, localized wear of the fulcrum guide easily develops because the high-speed traveling yarn continuously contacts the same portion of the fulcrum guide's outer circumference. As a result, the contact state between the yarn and the fulcrum guide changes, potentially leading to a decrease in yarn quality. In this regard, Patent Document 1 provides a guide rotating mechanism that rotates the fulcrum guide, thereby changing the contact position with the yarn. However, when the guide rotating mechanism is not activated, the problem of localized wear development of the fulcrum guide persists.

[0006] On the other hand, the fulcrum guide in Patent Document 2 is configured to rotate freely. Therefore, during yarn winding, the fulcrum guide always rotates due to friction with the yarn, which can suppress localized wear. However, when the yarn travels at high speed, the fulcrum guide also rotates at high speed, so bearings for the fulcrum guide are necessary. However, due to the high-speed rotation of the fulcrum guide, the bearings are prone to premature failure, resulting in problems such as costly and troublesome maintenance. Summary of the Invention

[0007] In view of the above issues, the object of the present invention is to provide a wire winding machine that can reliably reduce local wear of the fulcrum guide and does not require bearings for the fulcrum guide.

[0008] This invention relates to a thread winding machine, which winds multiple threads onto multiple bobbins mounted on the winding shaft while simultaneously moving laterally around multiple fulcrums of thread guides arranged axially along the winding shaft. The multiple fulcrums of thread guides are configured as rollers with a central axis, hooking the threads onto their outer circumferential surfaces, and do not rotate around the central axis during thread winding. The thread winding machine includes: a moving mechanism that moves the multiple fulcrums of thread guides between a winding position during thread winding and a thread-hanging position during thread hanging operations; and a rotating mechanism that, when the moving mechanism moves the multiple fulcrums of thread guides between the winding position and the thread-hanging position, automatically rotates one or more of the fulcrums of thread guides around the central axis.

[0009] In this invention, the fulcrum guide is configured to move between a take-up position and a wire-hanging position via a moving mechanism. Furthermore, a rotating mechanism is provided so that when the fulcrum guide is moved by the moving mechanism, one or more fulcrum guides automatically rotate. Thus, whenever a wire-hanging operation is performed on the fulcrum guide, one or more fulcrum guides can be reliably rotated, reliably reducing localized wear on the fulcrum guide. Moreover, since the fulcrum guide is configured not to rotate during wire take-up, it is not subjected to high-speed rotation caused by the movement of the wire, eliminating the need for bearings on the fulcrum guide. Furthermore, it is not necessary to rotate fulcrum guides where localized wear is not a significant problem; therefore, it is sufficient for the rotating mechanism to rotate only one or more fulcrum guides where localized wear is a problem.

[0010] In this invention, the above-mentioned one or more fulcrum guides may include two of the above-mentioned fulcrum guides at both ends of the axial direction.

[0011] In a typical wire winding machine, among the multiple fulcrum guides arranged axially along the winding shaft, the closer the fulcrum guide is to the end, the larger the winding angle of the wire. Therefore, the surface pressure exerted on the wire is greater, and wear is more likely to become a problem. Thus, if a rotating mechanism is used to rotate at least two fulcrum guides at both ends, the problem of localized wear of the fulcrum guides can be largely eliminated.

[0012] In this invention, the above-mentioned one or more fulcrum guides may include all of the above-mentioned fulcrum guides.

[0013] In this way, local wear can be reliably reduced for all fulcrum wire guides.

[0014] In this invention, the rotating mechanism may also include: a gear portion formed on the fulcrum guide or a holding member that holds the fulcrum guide; and an actuating member that rotates the fulcrum guide by actuating the gear portion when the plurality of fulcrum guides move.

[0015] With such a rotating mechanism, the amount of rotation of the fulcrum wire guide can be easily adjusted, for example, by rotating one tooth of the gear section of the fulcrum wire guide at a time.

[0016] In this invention, the moving mechanism may also include: a plurality of sliders supporting the plurality of fulcrum wire guides; a guide rail on which the plurality of sliders are slidably mounted; and a drive unit that moves the plurality of sliders along the guide rail.

[0017] According to this moving mechanism, the fulcrum wire guide can be moved simply by moving the slider along the guide rail.

[0018] In this invention, when the plurality of fulcrum guides move from the winding position to the hanging position, the sliders that are adjacent to each other in the long side direction of the guide rail approach each other.

[0019] With this configuration, when multiple fulcrum wire guides are in the wire-hanging position, the multiple fulcrum wire guides are assembled in a close manner, thus making the wire-hanging operation easier.

[0020] In this invention, the aforementioned actuating component may be disposed on the aforementioned slider, and the actuating component may have: a protrusion that protrudes from the aforementioned slider when the plurality of fulcrum guides are located in the aforementioned winding position; and an actuating part that actuates the aforementioned gear part when the aforementioned protrusion is pressed by the adjacent aforementioned slider as the plurality of fulcrum guides move from the aforementioned winding position to the aforementioned wire-hanging position.

[0021] With this configuration, when the fulcrum guide moves to the wire-hanging position, the fulcrum guide can be reliably rotated by a specified amount by the actuating component.

[0022] In this invention, a force-applying component may be provided, which applies force to the actuating component in the direction in which the protrusion protrudes from the slider.

[0023] If such a force-applying component is provided, the fulcrum guide can automatically return to the state where the protrusion protrudes from the slider when it moves to the winding position.

[0024] In this invention, a locking component may be provided, which prevents the gear section from moving when the yarn is wound.

[0025] With this configuration, rotation of the gear section can be reliably prevented during yarn winding, and unintentional rotation of the fulcrum guide can be avoided during yarn winding.

[0026] In this invention, the actuating component may be formed of a deformable elastic material. When the plurality of fulcrum guides move from the winding position to the wire-hanging position, and the protrusion is pressed by the adjacent slider, the actuating component deforms, causing the gear portion to move. When the plurality of fulcrum guides move from the wire-hanging position to the winding position, the protrusion protrudes from the slider due to the restoring force of the actuating component.

[0027] With this configuration, when the fulcrum guide moves to the winding position, it can automatically return to the state where the protrusion protrudes from the slider. Furthermore, by utilizing the restoring force of the actuating component, no force-applying component is required, thus reducing the number of components.

[0028] In this invention, the locking part that locks the gear part during the winding of the yarn can also be integrally formed with the actuating component.

[0029] With this configuration, rotation of the gear section can be reliably prevented during yarn winding, and unintentional rotation of the fulcrum guide can be avoided during yarn winding. Furthermore, since the locking part and the moving part are integrally formed, the number of parts can be reduced.

[0030] In this invention, the aforementioned actuating component may also be disposed on the aforementioned guide rail.

[0031] If the actuators are placed on the guide rail, the number of actuators can be reduced compared to placing the actuators on each slider.

[0032] In this invention, the actuating component may have an actuating part that rotates the fulcrum wire guide by actuating the gear part only when the plurality of fulcrum wire guides move to one side in the direction of the long side.

[0033] With this configuration, when the fulcrum guide moves to the other side in the long direction, the actuating component does not cause the fulcrum guide to rotate, making it easy to adjust the amount of rotation of the fulcrum guide.

[0034] In this invention, the actuating part may extend along the long side and be elastically deformable, and the end of the actuating part on one side may have a shape that separates from the gear part as it moves toward that side.

[0035] If the actuating part is shaped like this, when the fulcrum guide moves to the other side in the long direction, the actuating part deforms away from the gear part by contacting the gear part, thus preventing the actuating part from rotating the fulcrum guide.

[0036] In this invention, the friction between the holding member and the slider can be adjusted so that the fulcrum guide does not rotate due to the yarn during yarn winding.

[0037] With this configuration, the locking component that prevents the gear section from rotating during thread winding can be eliminated. Attached Figure Description

[0038] Figure 1 This is a side view of the spinning traction device involved in this embodiment.

[0039] Figure 2 This is a side view of the guide unit.

[0040] Figure 3 This is a diagram illustrating the operation of the rotating mechanism in the first embodiment.

[0041] Figure 4 This is a diagram illustrating the operation of the rotating mechanism in the second embodiment.

[0042] Figure 5 This is a cross-sectional view showing the rotating mechanism of the third embodiment.

[0043] Figure 6 This is a top view showing the moving parts of the rotating mechanism in the third embodiment.

[0044] Figure 7 This is a diagram illustrating the operation of the rotating mechanism in the third embodiment.

[0045] Explanation of symbols

[0046] 10: Thread winding machine

[0047] 13: Tube support (winding shaft)

[0048] 16: Pivot wire guide

[0049] 20: Mobile organization

[0050] 21: Slider

[0051] 22: Guide rail

[0052] 23: Cylinder (Drive Unit)

[0053] 30, 40, 50: Rotating mechanism

[0054] 32, 42, 52: Retaining components

[0055] 32a, 42a, 52a: Gear section

[0056] 33, 43, 53: Action parts

[0057] 33a, 43d: Protrusions

[0058] 33b, 43e, 53b: Action Section

[0059] 34: Spring (force-applying component)

[0060] 35: Locking component

[0061] 43f: Locking part

[0062] B: Cylindrical tube

[0063] Y: Thread Detailed Implementation

[0064] Hereinafter, with reference to the accompanying drawings, embodiments of applying the yarn winding machine of the present invention to a spinning traction device will be described.

[0065] (Spinning traction device)

[0066] Figure 1 This is a side view of the spinning traction device according to this embodiment. In this specification, [the following will be described]. Figure 1 The directions shown are defined as front, back, left, right, up, and down of the spinning traction device.

[0067] The spinning traction device 1 is a device for drawing multiple (16 in this embodiment) filaments Y spun from the spinning device 2, and includes guide rollers 3 and 4 and a filament winding machine 10. The spinning device 2 is positioned above the spinning traction device 1 and spins multiple filaments Y made of synthetic resin. The guide rollers 3 and 4 are positioned below the spinning device 2 and are driven to rotate by a motor (not shown). The multiple filaments Y spun from the spinning device 2 are conveyed to the filament winding machine 10 via the guide rollers 3 and 4.

[0068] The thread winding machine 10 is positioned below the guide rollers 3 and 4. The thread winding machine 10 has two bobbin supports 13 (corresponding to the winding shafts of the present invention) cantilevered by a turntable 12 built into the machine body 11. The bobbin supports 13 extend in the front-rear direction (corresponding to the axial direction of the present invention), and their rear ends are supported by the turntable 12. Multiple bobbins B can be mounted on the bobbin supports 13 in the front-rear direction. The bobbin supports 13 are driven to rotate about an axis by a motor (not shown).

[0069] The turntable 12 is a circular plate-shaped component with a rotation axis parallel to the front-rear direction. Two bobbin supports 13 are mounted at upper and lower positions, 180 degrees apart in the circumferential direction. By rotating the turntable 12, the two bobbin supports 13 move between the upper and lower positions. In the upper position of the bobbin support 13, multiple threads Y are wound onto multiple bobbins B to form multiple rolls P. Conversely, in the lower position of the bobbin support 13, the multiple rolls P are retrieved, and new multiple bobbins B are installed.

[0070] The thread winding machine 10 has a support frame 14 that is cantilevered and supported on the machine body 11. The rear end of the support frame 14 is supported by the machine body 11. A guide unit 15 is disposed above the support frame 14. In the guide unit 15, a number of fulcrum guides 16, the same as the number of threads Y (16 in this embodiment), are arranged in the front-back direction. On the support frame 14, a number of traverse devices 17, the same as the number of threads Y, are arranged in the front-back direction. The traverse devices 17 use the corresponding fulcrum guides 16 as fulcrums to traverse the threads Y in the front-back direction.

[0071] Below the support frame 14, a contact roller 18 is disposed, which is rotatably supported by the support frame 14. The contact roller 18 contacts the outer peripheral surfaces of a plurality of packages P held by the bobbin support 13 located above. During yarn winding, the contact roller 18 rotates while applying a predetermined contact pressure to the packages P, thereby shaping the package P.

[0072] (Guiding Unit)

[0073] The structure of the guiding unit 15 will be explained. Figure 2 This is a side view of the guide unit 15. Figure 2 Figure (a) shows the state of the multiple pivot guides 16 in the winding position. Figure 2 Figure (b) shows the state of the multiple fulcrum wire guides 16 in the wire-hanging position. The winding position is the position of the multiple fulcrum wire guides 16 when winding multiple strands Y into multiple bobbins B. The wire-hanging position is the position of the multiple fulcrum wire guides 16 when hooking multiple strands Y onto the multiple fulcrum wire guides 16. The multiple fulcrum wire guides 16 are configured to be movable between the winding position and the wire-hanging position by means of the moving mechanism 20.

[0074] The guiding unit 15 is configured with a plurality of pivot wire guides 16 and a moving mechanism 20. The moving mechanism 20 has a plurality of sliders 21, a guide rail 22, and a cylinder 23 (corresponding to the drive unit of the present invention). The sliders 21 are provided in the same number as the pivot wire guides 16, supporting the pivot wire guides 16 so that they can rotate.

[0075] The pivot wire guide 16 protrudes to the right from the slider 21 (see reference). Figure 5 It has a roller-shaped component that extends a central axis in a direction orthogonal to the axial direction of the bobbin support 13 (left-right direction). The yarn Y is hooked on the outer peripheral surface of the fulcrum guide 16, and during yarn winding, the yarn Y travels in contact with the outer peripheral surface of the fulcrum guide 16. As will be explained later, the fulcrum guide 16 is configured so that it does not rotate around the central axis due to the travel of the yarn Y during yarn winding.

[0076] The guide rail 22 is a component extending along the front-back direction (corresponding to the long side direction of the invention) and is fixed to the support frame 14 via a bracket (not shown). Multiple sliders 21 are slidably mounted on the guide rail 22 in a front-back direction arrangement. Adjacent sliders 21 in the front-back direction are connected to each other by a belt (not shown). The rod 23a of the cylinder 23 is connected to the slider 21 on the farthest side.

[0077] like Figure 2 As shown in Figure (a), when the rod 23a of cylinder 23 retracts, the multiple sliders 21 are arranged in a separated state in the front-back direction. That is, the multiple fulcrum guides 16 are also arranged in a separated state in the front-back direction. The position of the multiple fulcrum guides 16 at this time is the winding position. When the multiple fulcrum guides 16 are in the winding position, the contact points between the yarn Y and each fulcrum guide 16, that is, the traverse fulcrums of the yarn Y, are equally spaced.

[0078] The thread channel, which distributes multiple threads Y from the guide roller 4 to the multiple pivot guides 16 located at the winding position, is symmetrical with respect to the vertical plane passing through the center of the multiple pivot guides 16 in the front-to-back direction. The first half of the eight threads Y are hooked on the front side of the pivot guides 16, while the second half of the eight threads Y are hooked on the rear side of the pivot guides 16. Furthermore, the closer the pivot guide 16 is to the end, the larger the winding angle of the threads Y. As a result, the surface pressure of the threads Y is greater, and therefore, wear is more likely to occur.

[0079] During the wire-coating operation on the multi-pivot wire guide 16, the cylinder 23 is driven to extend the rod 23a. The rearmost slider 21, connected to the rod 23a, then moves forward. Next, the rearmost slider 21 abuts against its adjacent slider 21 and presses forward; similarly, each slider 21 repeats this action of abutting against its adjacent slider 21 and pressing forward. Furthermore, the expression "abuts" here, for example... Figure 3 As shown in Figure (b), it also includes the way in which the sliders 21 indirectly contact each other via other components (the protrusion 33a of the actuating component 33 described later).

[0080] When the foremost slider 21 abuts against a limiter (not shown) located at the front end of the guide rail 22, the cylinder 23 stops. As a result, all sliders 21 are assembled in a state close to the front end of the guide rail 22. At this time, the positions of the multiple fulcrum wire guides 16 are the wire-hanging positions. The multiple fulcrum wire guides 16 located at the wire-hanging positions are assembled at the front end of the guide rail 22 in a state close to each other, thus facilitating wire-hanging operations on the multiple fulcrum wire guides 16. Alternatively, the front end of the guide rail 22 may function as a limiter instead of the limiter described above, or the cylinder 23 rod 23a may stop by abutting against the limiter.

[0081] After the wire-hanging operation is completed, when the cylinder 23 is driven to retract the rod 23a, the rearmost slider 21 moves backward. When the strip connecting the rearmost slider 21 to its adjacent front slider 21 is fully extended, the adjacent front slider 21 is pulled backward. Subsequently, each slider 21 is similarly pulled backward, thereby returning the multiple pivot wire guides 16 to their original positions. Figure 2 The winding position is shown in Figure (a). Furthermore, the drive unit that moves the slider 21 is not limited to the cylinder 23, but may also be other actuators such as a motor.

[0082] (First embodiment of the rotating mechanism)

[0083] The first embodiment of the rotating mechanism will be described. Figure 3 This is a diagram illustrating the operation of the rotating mechanism 30 in the first embodiment. Figure 3 Figure (a) shows the state of the pivot guide 16 in the winding position. Figure 3 Figure (b) shows the state of the fulcrum guide 16 in the wire hanging position. Figure 3 The pivot guide 16 shown represents the foremost pivot guide 16.

[0084] In this embodiment, a rotating device 31 is provided on each slider 21, and the assembly of the rotating devices 31 provided on each slider 21 is a rotating mechanism 30. The rotating device 31 is configured to have: a gear portion 32a formed on a holding member 32 that holds the fulcrum wire guide 16; and an actuating member 33 that actuates the gear portion 32a. The fulcrum wire guide 16 is fixed to the holding member 32 and can rotate integrally with the holding member 32. The holding member 32 is mounted on the slider 21 (see reference 1) in a manner that allows it to rotate around the central axis of the fulcrum wire guide 16. Figure 5 (Holding member 52). Thus, the fulcrum guide 16 is configured to rotate around the central axis. In this embodiment, the gear part 32a, the actuating member 33, and the locking member 35 (described later) are all provided on the surface side (right side) of the slider 21. However, these can also be provided on the back side (left side) of the slider 21.

[0085] The actuating component 33 is an integrally formed component consisting of a protrusion 33a, an actuating component 33b, and a connecting component 33c. The protrusion 33a is a portion that protrudes rearward from the slider 21 when the fulcrum guide 16 is in the winding position. The protrusion 33a extends towards the rear of the slider 21 and is pressed forward by the adjacent slider 21 when the fulcrum guide 16 is in the wire-hanging position. The actuating component 33b is the portion that actuates the gear portion 32a, pressing the teeth of the gear portion 32a through its top end. The connecting component 33c is the portion that connects the protrusion 33a and the actuating component 33b. The actuating component 33 is forced rearward by the spring 34 (corresponding to the force-applying component of the present invention), i.e., in the direction in which the protrusion 33a protrudes from the slider 21. Furthermore, the protrusion 33a does not necessarily have to protrude rearward; it can protrude in other directions as long as it is in a position where it can be pressed by the adjacent slider 21.

[0086] Figure 3 The fulcrum guide 16 shown is such that, during yarn winding, the yarn Y travels along... Figure 3 A torque is applied in the counterclockwise direction. A locking member 35 is provided to lock the gear portion 32a so that the fulcrum guide 16 will not rotate due to the torque during yarn winding. The locking member 35 can swing around the fulcrum 35a and is forced towards the gear portion 32a by the spring 36. The top end of the locking member 35 is located between the teeth of the gear portion 32a and locks the gear portion 32a, thereby preventing the gear portion 32a from rotating counterclockwise, and thus preventing the fulcrum guide 16 from rotating counterclockwise. In addition, the locking member 35 and the teeth of the gear portion 32a are shaped so that the rotation of the gear portion 32a is not hindered by the locking member 35 when it rotates clockwise.

[0087] As the fulcrum guide 16 moves from the take-up position to the wire-hanging position, the protrusion 33a of the actuating member 33 is pressed forward by the adjacent slider 21. This causes the actuating part 33b of the actuating member 33 to rotate the gear part 32a clockwise, thereby rotating the fulcrum guide 16 clockwise as well. At this time, because the teeth of the clockwise rotating gear part 32a are pressed against the gear, the locking member 35 swings counterclockwise, and the locking member 35 does not obstruct the rotation of the gear part 32a.

[0088] In this embodiment, the angle by which the actuating member 33 rotates the fulcrum guide 16, i.e., the gear portion 32a, is adjusted to the amount of one tooth of the gear portion 32a. Here, in the fulcrum guide 16 at the very end of the plurality of fulcrum guides 16, the winding angle of the yarn Y becomes the largest, and the circumferential range of wear is also the largest. Therefore, when the angle of rotation of the fulcrum guide 16 (the amount of one tooth of the gear portion 32a) is set to be greater than or equal to the winding angle of the yarn Y on the very end fulcrum guide 16, the development of wear in the end fulcrum guide 16 can be effectively suppressed. However, the amount of rotation of the fulcrum guide 16 is not limited to this and can be appropriately changed.

[0089] When the wire-hanging operation on the fulcrum guide 16 is completed and the fulcrum guide 16 returns from the wire-hanging position to the winding position, the adjacent slider 21 moves away. Then, using the force applied by the spring 34, the actuating member 33 moves rearward, and the protrusion 33a protrudes rearward from the slider 21. When the fulcrum guide 16 returns to the winding position and begins winding of the wire Y, although the movement of the wire Y exerts a counterclockwise torque on the fulcrum guide 16, as described above, the locking member 35 prevents the fulcrum guide 16 from rotating.

[0090] Furthermore, although the rotating device 31 provided relative to the foremost fulcrum guide 16 has been described here, the eight fulcrum guides 16 on the front side where the yarn Y is hooked have the same configuration. On the other hand, in the eight fulcrum guides 16 on the rear side, since the yarn Y is hooked on the rear side, the direction of the torque applied during yarn winding due to the movement of the yarn Y is clockwise, opposite to that of the eight fulcrum guides 16 on the front side. Therefore, the gear portion 32a, the actuating member 33, and the locking member 35 provided relative to the eight fulcrum guides 16 on the rear side are... Figure 3 The configuration shown is symmetrical. Furthermore, the method described here is only an example, and the number of fulcrum guides 16 that hook the yarn Y on the front side and the number of fulcrum guides 16 that hook the yarn Y on the rear side can be appropriately changed and are not necessarily the same.

[0091] (Effects of the first embodiment)

[0092] The effects of this embodiment will be explained. In this embodiment, the fulcrum guide 16 is configured to move between the winding position and the wire-hanging position via the moving mechanism 20. A rotating mechanism 30 is provided, which automatically rotates one or more fulcrum guides 16 when the fulcrum guide 16 is moved via the moving mechanism 20. Therefore, whenever a wire-hanging operation is performed on the fulcrum guide 16, one or more fulcrum guides 16 can be reliably rotated, reliably reducing localized wear on the fulcrum guide 16. Furthermore, since the fulcrum guide 16 is configured not to rotate during wire winding, it is not subjected to high-speed rotation caused by the movement of the wire Y, eliminating the need for bearings in the fulcrum guide 16.

[0093] In this embodiment, the aforementioned one or more fulcrum guides include two fulcrum guides 16 at both axial ends. In a typical wire winding machine 10, among the multiple fulcrum guides 16 arranged axially on the bobbin support 13, the closer the fulcrum guide 16 is to the end, the larger the winding angle of the wire Y. Therefore, the surface pressure borne by the wire Y is greater, and wear is more likely to become a problem. Thus, if the rotating mechanism 30 rotates at least the two fulcrum guides 16 at both ends, the problem of localized wear of the fulcrum guides 16 can be largely eliminated.

[0094] In this embodiment, the aforementioned one or more pivot wire guides include all pivot wire guides 16. This reliably reduces localized wear on all pivot wire guides.

[0095] In this embodiment, the rotation mechanism 30 includes: a gear portion 32a formed in the holding member 32 that holds the fulcrum guide 16; and an actuating member 33 that rotates the fulcrum guide 16 by actuating the gear portion 32a during the movement of the plurality of fulcrum guides 16. With such a rotation mechanism 30, for example, adjusting the amount of rotation of the fulcrum guide 16 is made easy by rotating the fulcrum guide 16 by one tooth of the gear portion 32a at a time.

[0096] In this embodiment, the moving mechanism 20 includes: a plurality of sliders 21 supporting a plurality of fulcrum wire guides 16; a guide rail 22 on which the plurality of sliders 21 are slidably mounted; and a cylinder 23 for moving the plurality of sliders 21 along the guide rail 22. According to such a moving mechanism 20, the fulcrum wire guides 16 can be moved simply by moving the sliders 21 along the guide rail 22.

[0097] In this embodiment, as the multiple fulcrum guides 16 move from the winding position to the wire-hanging position, the adjacent sliders 21 along the long side (front-back direction) of the guide rail 22 simply move closer to each other. With this configuration, when the multiple fulcrum guides 16 are in the wire-hanging position, they are grouped together in a close proximity, thus making the wire-hanging operation easier.

[0098] In this embodiment, the actuating member 33 is disposed on the slider 21. The actuating member 33 has: a protrusion 33a that protrudes from the slider 21 when the plurality of fulcrum guides 16 are in the winding position; and an actuating member 33b that actuates the gear member 32a when the protrusion 33a is pressed by an adjacent slider 21 as the plurality of fulcrum guides 16 move from the winding position to the wire-hanging position. With this configuration, when the fulcrum guides 16 move to the wire-hanging position, the actuating member 33 can reliably rotate the fulcrum guides 16 by a predetermined amount.

[0099] In this embodiment, a spring 34 is provided to apply force to the actuating member 33 in the direction in which the protrusion 33a protrudes from the slider 21. By providing such a spring 34, when the fulcrum guide 16 is in the winding position, it can automatically return to the state where the protrusion 33a protrudes from the slider 21.

[0100] In this embodiment, a locking member 35 is provided to prevent the gear section 32a from moving during yarn winding. With this configuration, rotation of the gear section 32a can be reliably prevented during yarn winding, and unintentional rotation of the fulcrum guide 16 can be avoided during yarn winding.

[0101] (Second embodiment of the rotating mechanism)

[0102] A second embodiment of the rotating mechanism will be described. Descriptions of configurations common to the first embodiment will be omitted as appropriate; the main focus will be on the differences from the first embodiment. Figure 4 This is a diagram illustrating the operation of the rotating mechanism 40 in the second embodiment. Figure 4 Figure (a) shows the state of the pivot guide 16 in the winding position. Figure 4 Figure (b) shows the state of the fulcrum guide 16 in the wire hanging position. Figure 4 The fulcrum guide 16 shown is the foremost fulcrum guide 16. The eight fulcrum guides 16 on the front side that hook the yarn Y have the same configuration, but regarding the eight fulcrum guides 16 on the rear side, the gear part 42a and the actuating member 43 are... Figure 4 The configuration shown is symmetrical.

[0103] In this embodiment, a rotating device 41 is provided on each slider 21, and the assembly of the rotating devices 41 provided on each slider 21 is a rotating mechanism 40. The rotating device 41 is configured to have a gear portion 42a formed on the holding member 42 of the holding fulcrum guide 16, and an actuating member 43 that actuates the gear portion 42a. The fulcrum guide 16 is fixed to the holding member 42 and can rotate integrally with the holding member 42. The holding member 42 is mounted on the slider 21 (see reference 1) in a manner that allows it to rotate around the central axis of the fulcrum guide 16. Figure 5 (Holding member 52). Thus, the pivot wire guide 16 is configured to rotate about a central axis. In this embodiment, the gear part 42a and the actuating member 43 are provided on the back side (left side) of the slider 21. However, they may also be provided on the surface side (right side) of the slider 21.

[0104] The actuating component 43 is made of a deformable elastic material, such as resin. The actuating component 43 is a component in which the fixing part 43a, the first arm part 43b, the second arm part 43c, the protrusion 43d, the actuating part 43e, and the locking part 43f are integrally formed. The actuating component 43 is configured such that the gear part 42a is surrounded by the first arm part 43b and the second arm part 43c.

[0105] The fixing part 43a is fixed to the slider 21 by bolts or the like, and becomes the base end of the first arm 43b and the second arm 43c. The first arm 43b extends downward from the fixing part 43a and then bends and extends rearward. The second arm 43c extends rearward from the fixing part 43a. A protrusion 43d is formed at the top end of the first arm 43b. The protrusion 43d is the part that protrudes rearward from the slider 21 when the fulcrum guide 16 is in the winding position. The actuating part 43e branches off from the top end of the first arm 43b and extends toward the gear part 42a. The actuating part 43e is the part that actuates the gear part 32a, pressing the teeth of the gear part 42a through its top end. A locking part 43f is formed at the top end of the second arm 43c. The locking part 43f is such that it locks the gear part 42a so that the fulcrum guide 16 will not move backward due to the movement of the yarn Y during yarn winding. Figure 4 Rotate counterclockwise.

[0106] As the fulcrum guide 16 moves from the winding position to the wire-hanging position, the protrusion 43d of the actuating member 43 is pressed forward by the adjacent slider 21. Thus, the first arm 43b of the actuating member 43, fixed to the fixing part 43a, moves forward as... Figure 4As shown in Figure (b), the gear part 42a rotates clockwise due to the actuation part 43e of the actuating member 43, thereby rotating the fulcrum guide wire 16 clockwise as well. At this time, the second arm part 43c deforms by pressing the locking part 43f backward through the teeth of the clockwise rotating gear part 42a, so that the locking part 43f does not obstruct the rotation of the gear part 42a.

[0107] When the wire-hanging operation on the fulcrum guide 16 is completed and the fulcrum guide 16 returns from the wire-hanging position to the winding position, as the adjacent slider 21 moves away, the first arm 43b returns to its original shape by the restoring force of the actuating member 43, and a portion of the protrusion 43d protrudes rearward from the slider 21. When the fulcrum guide 16 returns to the winding position and begins winding of the wire Y, the movement of the wire Y exerts a counterclockwise torque on the fulcrum guide 16, but as described above, the locking part 43f prevents the rotation of the fulcrum guide 16.

[0108] (Effects of the second embodiment)

[0109] The effects of this embodiment will be explained, but the effects resulting from the common configuration with the first embodiment will be omitted. In this embodiment, the actuating member 43 is formed of a deformable elastic material. When the multiple fulcrum guides 16 move from the take-up position to the wire-hanging position, the actuating member 43 deforms when the protrusion 43d is pressed by the adjacent slider 21. This causes the actuating member 43e to actuate the gear part 42a. When the multiple fulcrum guides 16 move from the wire-hanging position to the take-up position, the protrusion 43d protrudes from the slider 21 due to the restoring force of the actuating member 43. With this configuration, when the fulcrum guides 16 move to the take-up position, they can automatically return to the state where the protrusion 43d protrudes from the slider 21. Furthermore, since the restoring force of the actuating member 43 is used instead of a force-applying member, the number of parts can be reduced.

[0110] In this embodiment, the locking portion 43f, which locks the gear portion 42a during yarn winding, is integrally formed with the actuating member 43. With this configuration, rotation of the gear portion 42a can be reliably prevented during yarn winding, thus avoiding unintentional rotation of the fulcrum guide 16 during yarn winding. Furthermore, since the locking portion 43f is integrally formed with the actuating member 43, the number of components can be reduced.

[0111] (Third embodiment of the rotating mechanism)

[0112] A third embodiment of the rotating mechanism will be described. Descriptions of configurations common to the first embodiment will be appropriately omitted; the main focus will be on the differences from the first embodiment. Figure 5 This is a cross-sectional view showing the rotating mechanism 50 of the third embodiment. Figure 6This is a top view showing the actuating component 53 of the rotating mechanism 50 in the third embodiment. Figure 7 This is a diagram illustrating the operation of the rotating mechanism 50 in the third embodiment.

[0113] Figure 7 Figure (a) shows the movement of the fulcrum guide 16 from the winding position to the wire hanging position. Figure 7 Figure (b) shows the fulcrum guide 16 moving from the wire hanging position to the winding position.

[0114] The rotating mechanism 50 of this embodiment differs from the rotating mechanism 30 of the first embodiment and the rotating mechanism 40 of the second embodiment in two main aspects. First, it does not include a locking member (or locking part) that engages the gear portion 52a during yarn winding to prevent the fulcrum guide 16 from rotating. Second, the actuating member 53 is not located on each slider 21 but on the guide rail 22. Detailed explanations will follow.

[0115] The rotating mechanism 50 of this embodiment is configured to have a gear portion 52a formed in the holding member 52 that holds each fulcrum guide 16, and an actuating member 53 that actuates the gear portion 52a. The fulcrum guide 16 is fixed to the holding member 52 and is capable of rotating integrally with the holding member 52. Figure 5 As shown, the retaining member 52 is mounted in the mounting hole 21a formed on the surface (right surface) of the slider 21. The friction between the retaining member 52 and the slider 21 is adjusted so that even if the yarn Y travels during yarn winding, the fulcrum guide 16, i.e., the retaining member 52, will not rotate around the central axis. Therefore, the locking member can be omitted in this embodiment. The gear part 52a is provided on the back side (left side) of the slider 21 and is actuated by the actuating member 53 fixed to the guide rail 22.

[0116] The actuating component 53 is formed of a deformable elastic material, such as metal or resin, and is disposed near the lower end of the gear portion 52a. Figure 6 As shown, the actuating part 53 is an integrally formed component of the fixing part 53a and the actuating part 53b. The fixing part 53a is fixed to the guide rail 22 by bolts or the like. The actuating part 53b extends along the long side (front-back direction) of the guide rail 22. The front part of the actuating part 53b is a roughly horizontal plane, which overlaps with the lower end of the gear part 52a when viewed in the front-back direction (see reference). Figure 5 Therefore, the front end of the actuating part 53b can press the teeth of the gear part 52a. The rear end of the actuating part 53b becomes an inclined part that separates from the gear part 52a as it moves further rearward. Furthermore, as long as the rear end of the actuating part 53b has a shape that separates from the gear part 52a as it moves further rearward, it can be bent without being inclined.

[0117] like Figure 7As shown in Figure (a), when the fulcrum guide 16 moves from the winding position to the wire-hanging position, when the gear portion 52a abuts against the inclined portion of the actuating portion 53b, the actuating portion 53b is pressed downward by the gear portion 52a. As a result, the actuating portion 53b deforms in a downward flexing manner, preventing the gear portion 52a from rotating. On the other hand, as Figure 7 As shown in Figure (b), when the fulcrum guide 16 moves from the wire-hanging position to the winding position, the teeth of the gear portion 52a are pressed against the front end of the actuating portion 53b, causing the gear portion 52a to rotate clockwise. Consequently, the fulcrum guide 16 also rotates clockwise. The friction between the holding member 52 and the slider 21 is adjusted to a degree that allows the gear portion 52a to rotate when pressed by the top end of the actuating portion 53b. That is, the friction between the holding member 52 and the slider 21 is greater than the tension of the wire Y during wire winding and less than the force exerted by the front end of the actuating portion 53b on the gear portion 52a.

[0118] According to this embodiment, when the fulcrum guide 16 moves between the take-up position and the wire-hanging position, the fulcrum guide 16 rotates around the central axis via the actuating member 53 provided on the guide rail 22. Therefore, as long as the actuating member 53 is positioned where all the fulcrum guides 16 (slider 21) pass through, one actuating member 53 is sufficient. However, the number of actuating members 53 is not limited to one; two or more can also be provided. Furthermore, in this embodiment, the fulcrum guide 16 is configured to rotate when it moves from the wire-hanging position to the take-up position, but it is also possible to rotate the fulcrum guide 16 when it moves from the take-up position to the wire-hanging position. Alternatively, as long as the fulcrum guide 16 has finally rotated from its original position, it can rotate both when moving from the take-up position to the wire-hanging position and when moving from the wire-hanging position to the take-up position.

[0119] (Effects of the third embodiment)

[0120] The effects of this embodiment will be described, but the effects resulting from the common configuration with the first embodiment will be omitted. In this embodiment, the actuating member 53 is provided on the guide rail 22. By providing the actuating member 53 on the guide rail 22, the number of actuating members 53 can be reduced compared to the case where actuating members are provided on each slider 21.

[0121] In this embodiment, the actuating member 53 has an actuating part 53b, which rotates the fulcrum guide 16 by actuating the gear part 52a only when the plurality of fulcrum guides 16 move to one side (rear side) in the long side direction of the guide rail 22. With this configuration, when the fulcrum guide 16 moves to the other side (front side), the actuating member 53 does not rotate the fulcrum guide 16, thereby making it easy to adjust the amount of rotation of the fulcrum guide 16.

[0122] In this embodiment, the actuating part 53b extends along the long side (front-to-back direction) of the guide rail 22 and is elastically deformable. One end (rear end) of the actuating part 53b has a shape that separates from the gear part 52a as it moves towards one side (rear side). If the actuating part 53b has such a shape, when the fulcrum guide 16 moves to the other side (front side), the actuating part 53b deforms away from the gear part 52a by contacting it, thus preventing the actuating part 53b from causing the fulcrum guide 16 to rotate.

[0123] In this embodiment, the friction between the retaining member 52 and the slider 21 is adjusted so that the fulcrum guide 16 does not rotate due to the yarn Y during yarn winding. With this configuration, the locking member used to prevent rotation of the gear section 52a during yarn winding can be eliminated.

[0124] (Other implementation methods)

[0125] The following describes variations obtained by applying various changes to the above embodiments.

[0126] In the above embodiment, gear portions 32a, 42a, and 52a are formed on the outer peripheral surfaces of the holding members 32, 42, and 52 of the fulcrum guide 16. However, gear portions may also be formed on the outer peripheral surface of the fulcrum guide 16.

[0127] In the first embodiment, a locking member 35 is provided, and in the second embodiment, a locking part 43f is provided. However, instead of providing the locking member 35 and the locking part 43f, the friction between the retaining members 32, 42 and the slider 21 can be increased, as in the third embodiment, thereby preventing the fulcrum guide 16 from rotating during yarn winding. Conversely, a locking member can also be provided in the third embodiment.

[0128] In the first to third embodiments described above, all the pivot wire guides 16 are rotated by the rotating mechanisms 30, 40, and 50. However, the rotating mechanisms 30, 40, and 50 may also rotate only the pivot wire guides 16 that are prone to local wear problems (e.g., the pivot wire guides 16 at both ends).

[0129] In the above embodiments, when the multiple fulcrum guides 16 are in the wire-hanging position, the multiple fulcrum guides 16 are assembled at the top end of the guide rail 22 in a state of proximity to each other. However, in the case where the actuating member 53 is provided on the guide rail 22 as in the third embodiment, the multiple fulcrum guides 16 do not need to be close to each other at the wire-hanging position. That is, the present invention can be applied even when the multiple fulcrum guides 16 move integrally between the winding position and the wire-hanging position without changing their mutual spacing.

Claims

1. A wire winding machine, wherein multiple wires are wound onto multiple bobbins mounted on the winding shaft while simultaneously moving laterally about a plurality of fulcrum guides arranged axially along the winding shaft, characterized in that, The aforementioned multiple fulcrum guides are configured as rollers with a central axis, on which the aforementioned yarn is hooked, and which do not rotate around the central axis during yarn winding. The above-mentioned wire winding machine has the following features: The moving mechanism moves the aforementioned multiple fulcrum guides between their winding position during yarn winding and their hanging position during yarn hanging operations; and The rotating mechanism causes one or more of the aforementioned fulcrum guides to automatically rotate around the aforementioned central axis when the aforementioned moving mechanism moves the aforementioned plurality of fulcrum guides between the aforementioned winding position and the aforementioned wire hanging position.

2. The thread winding machine as described in claim 1, characterized in that, The aforementioned one or more fulcrum wire guides include two of the aforementioned fulcrum wire guides at both ends of the axial direction.

3. The thread winding machine as described in claim 2, characterized in that, The above-mentioned one or more pivot wire guides include all of the above-mentioned pivot wire guides.

4. The thread winding machine as described in claim 1, characterized in that, The above-mentioned rotating mechanism has: Gear portion, formed in the aforementioned pivot wire guide or retaining member holding the aforementioned pivot wire guide; and The actuating component rotates the fulcrum wire guide by actuating the gear section during the movement of the plurality of fulcrum wire guides.

5. The thread winding machine as described in claim 2, characterized in that, The above-mentioned rotating mechanism has: Gear portion, formed in the aforementioned pivot wire guide or retaining member holding the aforementioned pivot wire guide; and The actuating component rotates the fulcrum wire guide by actuating the gear section during the movement of the plurality of fulcrum wire guides.

6. The thread winding machine as described in claim 3, characterized in that, The above-mentioned rotating mechanism has: Gear portion, formed in the aforementioned pivot wire guide or retaining member holding the aforementioned pivot wire guide; and The actuating component rotates the fulcrum wire guide by actuating the gear section during the movement of the plurality of fulcrum wire guides.

7. The thread winding machine as described in claim 4, characterized in that, The aforementioned mobile mechanism has: Multiple sliders support the aforementioned multiple pivot wire guides; A guide rail extends along its long side, and the aforementioned plurality of sliders are slidably mounted on the guide rail; and The drive unit causes the aforementioned multiple sliders to move along the aforementioned guide rail.

8. The thread winding machine as described in claim 5, characterized in that, The aforementioned mobile mechanism has: Multiple sliders support the aforementioned multiple pivot wire guides; A guide rail extends along its long side, and the aforementioned plurality of sliders are slidably mounted on the guide rail; and The drive unit causes the aforementioned multiple sliders to move along the aforementioned guide rail.

9. The thread winding machine as described in claim 6, characterized in that, The aforementioned mobile mechanism has: Multiple sliders support the aforementioned multiple pivot wire guides; A guide rail extends along its long side, and the aforementioned plurality of sliders are slidably mounted on the guide rail; and The drive unit causes the aforementioned multiple sliders to move along the aforementioned guide rail.

10. The thread winding machine as described in claim 7, characterized in that, As the aforementioned multiple fulcrum guides move from the aforementioned winding position to the aforementioned wire hanging position, the aforementioned sliders that are adjacent to each other in the aforementioned long side direction approach each other.

11. The thread winding machine as described in claim 8, characterized in that, As the aforementioned multiple fulcrum guides move from the aforementioned winding position to the aforementioned wire hanging position, the aforementioned sliders that are adjacent to each other in the aforementioned long side direction approach each other.

12. The thread winding machine as described in claim 9, characterized in that, As the aforementioned multiple fulcrum guides move from the aforementioned winding position to the aforementioned wire hanging position, the aforementioned sliders that are adjacent to each other in the aforementioned long side direction approach each other.

13. The thread winding machine as described in claim 10, characterized in that, The aforementioned actuating component is disposed on the aforementioned slider. The aforementioned actuating components have: The protrusion protrudes from the slider when the plurality of pivot guides are in the take-up position; and The actuating unit, when the multiple fulcrum guides move from the winding position to the wire hanging position, causes the gear unit to actuate when the protrusion is pressed by the adjacent slider.

14. The thread winding machine as described in claim 11, characterized in that, The aforementioned actuating component is disposed on the aforementioned slider. The aforementioned actuating components have: The protrusion protrudes from the slider when the plurality of pivot guides are in the take-up position; and The actuating unit, when the multiple fulcrum guides move from the winding position to the wire hanging position, causes the gear unit to actuate when the protrusion is pressed by the adjacent slider.

15. The thread winding machine as described in claim 12, characterized in that, The aforementioned actuating component is disposed on the aforementioned slider. The aforementioned actuating components have: The protrusion protrudes from the slider when the plurality of pivot guides are in the take-up position; and The actuating unit, when the multiple fulcrum guides move from the winding position to the wire hanging position, causes the gear unit to actuate when the protrusion is pressed by the adjacent slider.

16. The thread winding machine as described in claim 13, characterized in that, A force-applying component is provided, which applies force to the aforementioned actuating component in the direction in which the aforementioned protrusion extends from the aforementioned slider.

17. The thread winding machine as described in claim 14, characterized in that, A force-applying component is provided, which applies force to the aforementioned actuating component in the direction in which the aforementioned protrusion extends from the aforementioned slider.

18. The thread winding machine as described in claim 15, characterized in that, A force-applying component is provided, which applies force to the aforementioned actuating component in the direction in which the aforementioned protrusion extends from the aforementioned slider.

19. The thread winding machine according to any one of claims 4 to 18, characterized in that, A locking component is provided to prevent the gear section from moving during the winding of the yarn.

20. The thread winding machine as described in claim 13, characterized in that, The aforementioned moving parts are formed of a deformable elastic material. As the aforementioned multiple pivot wire guides move from the winding position to the wire-hanging position, when the protrusion is pressed by the adjacent slider, the actuating member deforms, causing the gear to move. As the aforementioned multiple fulcrum wire guides move from the aforementioned wire hanging position to the aforementioned winding position, the aforementioned protrusions protrude from the aforementioned slider using the restoring force of the aforementioned actuating component.

21. The thread winding machine as described in claim 14, characterized in that, The aforementioned moving parts are formed of a deformable elastic material. As the aforementioned multiple pivot wire guides move from the winding position to the wire-hanging position, when the protrusion is pressed by the adjacent slider, the actuating member deforms, causing the gear to move. As the aforementioned multiple fulcrum wire guides move from the aforementioned wire hanging position to the aforementioned winding position, the aforementioned protrusions protrude from the aforementioned slider using the restoring force of the aforementioned actuating component.

22. The thread winding machine as described in claim 15, characterized in that, The aforementioned moving parts are formed of a deformable elastic material. As the aforementioned multiple pivot wire guides move from the winding position to the wire-hanging position, when the protrusion is pressed by the adjacent slider, the actuating member deforms, causing the gear to move. As the aforementioned multiple fulcrum wire guides move from the aforementioned wire hanging position to the aforementioned winding position, the aforementioned protrusions protrude from the aforementioned slider using the restoring force of the aforementioned actuating component.

23. The thread winding machine as described in claim 20, characterized in that, The locking part that locks the gear part during the winding of the thread is integrally formed with the actuating part.

24. The thread winding machine as described in claim 21, characterized in that, The locking part that locks the gear part during the winding of the thread is integrally formed with the actuating part.

25. The thread winding machine as described in claim 22, characterized in that, The locking part that locks the gear part during the winding of the thread is integrally formed with the actuating part.

26. The thread winding machine according to any one of claims 7 to 12, characterized in that, The aforementioned actuating components are mounted on the aforementioned guide rail.

27. The thread winding machine as described in claim 26, characterized in that, The aforementioned actuating component has an actuating part that rotates the aforementioned fulcrum wire guides by actuating the aforementioned gear part only when the aforementioned plurality of fulcrum wire guides move to one side in the aforementioned long side direction.

28. The thread winding machine as described in claim 27, characterized in that, The aforementioned moving part extends along the aforementioned long side direction and is capable of elastic deformation. The end of the aforementioned actuating part on the aforementioned side has a shape that separates from the aforementioned gear part the further it is towards the aforementioned side.

29. The thread winding machine as described in claim 26, characterized in that, The friction between the retaining component and the slider is adjusted so that the fulcrum guide will not rotate due to the yarn during yarn winding.

30. The thread winding machine as described in claim 27, characterized in that, The friction between the retaining component and the slider is adjusted so that the fulcrum guide will not rotate due to the yarn during yarn winding.

31. The thread winding machine as described in claim 28, characterized in that, The friction between the retaining component and the slider is adjusted so that the fulcrum guide will not rotate due to the yarn during yarn winding.

Images