JP2015000524A - Manufacturing device for annular concentrically twisted cord - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing device for an annular concentrically twisted cord suppressing a bounce of a cassette.SOLUTION: A manufacturing device includes: a core rotation mechanism 10 for rotating an annular core 1 in a circumferential direction; a first cassette moving mechanism 20 for moving a cassette 50 to the outside and inside of a ring of the annular core 1; and a second cassette moving mechanism 30 for moving the cassette 50 from one side to the other side and from the other side to the one side of a rotation shaft B of the annular core 1 on the inside and outside of the ring of the annular core 1. The second cassette moving mechanism 30 is equipped with a pair of holding portions 32, a pressing mechanism 33 for pressing the cassette 50 toward the holding portions, and a bounce suppressing mechanism 34 for suppressing a bounce of the cassette.

Description

  The present invention relates to an apparatus for manufacturing an annular concentric stranded cord.

  As an apparatus for manufacturing an annular concentric stranded cord, an apparatus described in Patent Document 1 is known. In the manufacturing apparatus of Patent Document 1, a cassette mounted on one guide rod is moved to the other guide rod by pushing the cassette with an air cylinder.

Japanese Patent No. 3657599

  However, in this apparatus, for example, when the cassette is moved from one side to the other side, the cassette may be pushed back by the wall on the other side and rebound. In particular, if the cassette transfer speed is increased to increase the production speed, it is necessary to apply a large force to the cassette by the air cylinder. However, if the cassette is pushed with a large force, the rebound on the other side of the cassette will increase. Therefore, it has become one of the reasons why the production speed cannot be increased.

  Then, an object of this invention is to provide the manufacturing apparatus of the annular concentric twisted cord by which the bounce of the cassette was suppressed.

An apparatus for producing an annular concentric stranded cord of the present invention capable of solving the above-mentioned problems,
A core rotation mechanism for rotating the annular core in the circumferential direction;
A first cassette moving mechanism for moving the cassette containing the side wire to the outside and inside of the ring of the annular core;
Moving the cassette from one side to the other side of the rotation axis of the annular core inside the ring of the annular core, and moving the cassette from the other side of the rotation axis of the ring core to the one side outside the ring of the annular core; A second cassette moving mechanism,
An annular concentric twisted cord is manufactured by moving the cassette to the inside and the outside of a ring of an annular core rotating in the circumferential direction, and spirally winding a side wire drawn from the cassette around the annular core. A cord manufacturing apparatus,
The second cassette moving mechanism is
A pair of holding portions for holding the cassette on each of one side and the other side of the rotating shaft of the annular core;
A pressing mechanism for pressing the cassette from one side toward the holding unit on the other side;
An apparatus for manufacturing an annular concentric stranded cord, comprising: a rebound suppressing mechanism that suppresses the cassette from rebounding to the other side when the cassette is pressed against the holding portion on one side by the pressing mechanism on the other side.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing apparatus of the annular concentric twisted cord by which the bounce of the cassette was suppressed is provided.

It is a front view of the manufacturing apparatus of the annular concentric stranded cord concerning the embodiment of the present invention. It is a top view of the manufacturing apparatus shown in FIG. It is a top view of a 2nd cassette moving mechanism. It is a schematic diagram which shows the manufacturing process of the cyclic | annular concentric twisted cord by the manufacturing apparatus shown in FIG. It is an enlarged view of the 2nd cassette moving mechanism of the manufacturing apparatus which concerns on 2nd embodiment of this invention. It is an enlarged view of the 2nd cassette movement mechanism of the manufacturing apparatus which concerns on 3rd embodiment of this invention.

<Description of Embodiment of Present Invention>
First, the contents of the embodiments of the present invention will be listed and described.
The embodiment of the present invention is
(1) a core rotation mechanism for rotating the annular core in the circumferential direction;
A first cassette moving mechanism for moving the cassette containing the side wire to the outside and inside of the ring of the annular core;
Moving the cassette from one side to the other side of the rotation axis of the annular core inside the ring of the annular core, and moving the cassette from the other side of the rotation axis of the ring core to the one side outside the ring of the annular core; A second cassette moving mechanism,
An annular concentric twisted cord is manufactured by moving the cassette to the inside and the outside of a ring of an annular core rotating in the circumferential direction, and spirally winding a side wire drawn from the cassette around the annular core. A cord manufacturing apparatus,
The second cassette moving mechanism is
A pair of holding portions for holding the cassette on each of one side and the other side of the rotating shaft of the annular core;
A pressing mechanism for pressing the cassette from one side toward the holding unit on the other side;
An apparatus for manufacturing an annular concentric stranded cord, comprising: a rebound suppressing mechanism that suppresses the cassette from rebounding to the other side when the cassette is pressed against the holding portion on one side by the pressing mechanism on the other side.

  According to the apparatus for manufacturing the annular concentric stranded cord according to the embodiment, since the bounce of the cassette is suppressed by the bounce suppression mechanism, the movement of the cassette by the second cassette movement mechanism is accelerated without causing the bounce. be able to. As a result, the manufacturing speed can be increased while keeping the winding accuracy of the side wire around the annular core high.

(2) The bounce suppression mechanism may suppress a bounce of the cassette by generating a magnetic force between the cassette and the cassette.
(3) The magnet is a permanent magnet,
A magnetic force generated between the permanent magnet and the cassette may be set smaller than a pressing force applied to the cassette by the pressing mechanism and larger than a reaction force generated on the cassette by the pressing mechanism.
(4) The rebound suppressing mechanism may suppress the rebound of the cassette by adsorbing the cassette with a negative pressure.
According to such a manufacturing apparatus according to the present embodiment, compared to the case where the bounce suppression mechanism is configured with a complicated mechanical configuration, the bounce suppression mechanism that can reliably prevent the bounce of the cassette with a light and simple configuration is configured. it can.

(5) The cassette has a reel around which a side wire is wound,
The pair of holding portions includes guide pins that protrude in directions approaching each other along the rotation axis of the reel of the cassette, and can be inserted into support holes provided in the cassette.
The guide pin is tapered from the root side toward the tip side,
The bounce suppression mechanism may be an outer peripheral surface of the guide pin.

  According to the manufacturing apparatus according to the present embodiment, the reaction force generated when the cassette is pressed against the holding portion can be dispersed in the direction in which the outer peripheral surface of the guide pin intersects the rotation axis of the reel. Thereby, the reaction force generated in the cassette can be suppressed, and the rebound of the cassette can be suppressed. That is, according to the manufacturing apparatus which concerns on this embodiment, the reaction force which arises in a cassette can be suppressed cheaply, without mounting a special mechanism.

(6) The cassette has a reel around which a side wire is wound,
The pair of holding portions includes guide pins that protrude in directions approaching each other along the rotation axis of the reel of the cassette, and can be inserted into support holes provided in the cassette.
The rebound suppressing mechanism is a contact portion that protrudes from an outer peripheral surface of the guide pin provided in the holding portion and abuts against the support hole of the cassette when the cassette is pressed against the holding portion. May be.

  According to the manufacturing apparatus according to the present embodiment, when the cassette is pressed against the holding portion, the contact portion that protrudes from the guide pin hits the support hole, thereby suppressing the bounce of the cassette.

(7) The support hole of the cassette may be formed with a recess having a shape corresponding to the tip of the contact portion.
According to the manufacturing apparatus according to the present embodiment, the bounce of the cassette can be reliably suppressed by bringing the tip of the contact portion into contact with the recess of the support hole.

<Overall structure>
Hereinafter, an apparatus for manufacturing an annular concentric stranded cord according to an embodiment of the present invention (hereinafter simply referred to as a manufacturing apparatus) will be described with reference to the drawings.
FIG. 1 is a front view of a manufacturing apparatus according to this embodiment.
As shown in FIG. 1, the manufacturing apparatus according to the present embodiment includes a core rotating mechanism 10 that rotates the annular core 1 in the circumferential direction, a first cassette moving mechanism 20, a second cassette moving mechanism 30, and a side wire. 2 and a cassette 50 accommodating 2.

(Core rotation mechanism)
The core rotating mechanism 10 rotates the annular core 1 in a posture in which the axial direction B of the annular annular core 1 is oriented in the horizontal direction. That is, the annular core 1 is rotated in the circumferential direction counterclockwise around the rotation axis B in a posture that forms a ring in a front view as shown in FIG. The core rotation mechanism 10 includes a housing 11, a clamp portion 12, two pairs of pinch roller portions 13 and 14, and a pressing roller 15.

  The clamp unit 12 is attached to the housing 11. The clamp part 12 contacts the annular core 1 at the highest position of the annular core 1. The clamp part 12 is provided with two rollers 12a and 12b arranged so that the rotation axis faces the vertical direction and faces each other. The annular core 1 and the side wire 2 are inserted between the rollers 12 a and 12 b, and the side wire 2 drawn from the cassette 50 joins the annular core 1. In the following description, the point where the clamp portion 12 contacts the annular core 1 and the side wire is referred to as a winding point A.

  The pinch roller portions 13 and 14 are rotatably attached to the housing 11 at positions separated from each other. The pinch roller portions 13 and 14 include inner rollers 13a and 14a and outer rollers 13b and 14b, respectively. The inner rollers 13 a and 14 a are driven by a roller drive motor 18. The inner rollers 13a and 14a contact the annular core 1 and the side wire 2 to rotate the annular core 1 and the side wire 2. The outer rollers 13b and 14b are rotated as the annular core 1 and the side wire 2 rotate.

  An arm 16 is rotatably attached to the housing 11. A presser roller 15 is rotatably attached to one end of the arm 16. The other end of the arm 16 is fixed to the housing 11 via a spring 17. The presser roller 15 contacts the annular core 1 below the lower pinch roller portion 14. The presser roller 15 is generated during rotation and suppresses the shaking of the annular core 1.

(First cassette moving mechanism)
As shown in FIG. 1, the first cassette moving mechanism 20 includes a link mechanism 21, a motor 22 connected to one side of the link mechanism 21, and a cassette connecting portion 23 fixed to the other side of the link mechanism 21. It has. The moving mechanism drive motor 23 moves the other side of the link mechanism 21 in the left-right direction, and moves the cassette 50 to the outside and inside of the ring of the annular core 1 in a front view.

(cassette)
As shown in FIG. 1, the cassette 50 is provided on the outer periphery of the reel 51 around which the side wire 2 is wound, the case 52 that houses the reel 51 and covers the outer periphery of the side wire 2, and the case 52. The guide block 53 is provided. The guide block 53 is provided with a guide portion 53a, and the side wire 2 wound around the reel 51 is guided by the guide portion 53a and pulled out to the annular core 1 side. In the present embodiment, the guide portion 53a is formed as a through hole. A slit 54 is provided in a part of the outer peripheral surface of the case 52. The side wire 2 extending from the reel 51 toward the guide portion 53a passes through the slit 54.

(Second cassette moving mechanism)
As shown in FIG. 1, the second cassette moving mechanism 30 is provided on the upper portion of the cassette connecting portion 23.
FIG. 2 is a top view of the manufacturing apparatus shown in FIG. As shown in FIG. 2, the cassette connecting portion 23 is provided on one side and the other side of the rotation axis B of the annular core 1 with respect to the rotation surface C of the annular core 1. A second cassette moving mechanism 30 is provided on each of the upper portions of the pair of cassette connecting portions 23. The second cassette moving mechanism 30 moves the cassette 50 with respect to the rotation surface C of the annular core 1 from one side to the other side in the direction of the rotation axis B of the annular core 1 and from the other side to the one side.

  FIG. 3 is a top view of the second cassette moving mechanism. In FIG. 3, the right side is called one side and the left side is called the other side. As shown in FIG. 3, second cassette moving mechanisms 30 a and 30 b are provided on one side and the other side of the rotation surface C of the annular core 1, respectively. These second cassette moving mechanisms 30a and 30b are mechanisms having the same structure arranged in the left-right direction. In the following description, when the second cassette moving mechanism 30a on one side and the second cassette moving mechanism 30b on the other side are called without distinction, they are simply called the second cassette moving mechanism 30.

  The second cassette moving mechanism 30 has a frame 31 fixed to the upper part of the cassette support part 23. The frame 31 is provided with an air cylinder 33 as a pressing mechanism and a magnet 34 as a rebound suppressing mechanism. The magnet 34 applies a magnetic force to the metal case 52 of the cassette 50.

  The frame 31 includes a cassette receiving surface 31a parallel to a side surface (a surface perpendicular to the rotation axis D of the reel 51) 50a of the cassette 50. Two guide pins 32a and 32b are provided so as to protrude toward the second cassette moving mechanism 30 from the cassette receiving surface 31a. These guide pins 32 a and 32 b are sized to be inserted into the support holes 66 of the cassette 50. By inserting the two guide pins 32 a and 32 b through the support hole 66, the second cassette moving mechanism 30 supports the cassette 50 so as not to rotate with respect to the second cassette moving mechanism 30.

  The air cylinder 33 provided in the second cassette moving mechanism 30 a on one side includes a slide pin 33 a that protrudes toward the other side of the rotation surface C of the annular core 1. When the slide pin 33a protrudes toward the other side, the side surface 50a of the cassette 50 is pushed, and the cassette 50 is moved toward the cassette moving mechanism 30b on the other side.

(Operation of manufacturing equipment)
In the manufacturing apparatus configured as described above, the cassette 50 is moved inside and outside the ring of the annular core 1 rotating in the circumferential direction, and the side wire 2 drawn from the cassette 50 is spirally formed in the annular core 1. To produce an annular concentric stranded wire cord. This will be described in detail below.

FIG. 4 is a schematic view showing a manufacturing process of the annular concentric stranded cord by the manufacturing apparatus according to the present embodiment.
First, in the state of FIG. 4A, the cassette 50 is located on one side of the rotation surface C of the annular core 1 outside the ring of the annular core 1. At this time, the side wire 2 runs along the outer periphery of the annular core 1 at the clamp portion 12. The side wire 2 is pulled out from the cassette 50 with the rotation of the annular core 1 by the rotating roller of the clamp portion 12 and pulled toward the annular core 1 side.

  From the state of FIG. 4A, the cassette 50 is moved to the inside of the ring of the annular core 1 by the first cassette moving mechanism 20 while the annular core 1 is rotated in the circumferential direction by the pinch roller portions 13 and 14. As a result, the state shown in FIG.

  4B, the cassette 50 is moved to the other side of the rotation surface C of the annular core 1 by the second cassette moving mechanism 30 while rotating the annular core 1 in the circumferential direction. As a result, the state shown in FIG. Then, in the clamp part 12, the side wire 2 is wound spirally by the half circumference of the annular core 1.

  Then, from the state of FIG. 4C, the cassette 50 is moved to the outside of the ring of the annular core 1 by the first cassette moving mechanism 20 while rotating the annular core 1 in the circumferential direction. As a result, the state shown in FIG.

  4D, the cassette 50 is moved to one side of the rotation surface C of the annular core 1 by the second cassette moving mechanism 30 while rotating the annular core 1 in the circumferential direction. As a result, the state shown in FIG. Then, in the clamp part 12, the side wire 2 is further wound spirally for half the circumference of the annular core 1. As a result, the side wire 2 goes around the annular core 1.

  When the cassette 50 is moved while the annular core 1 is rotated by repeating the steps (a) to (d) in FIG. 4, the side wire is spirally wound around the outer periphery of the annular core 1. In some cases, by repeating the steps (a) to (d) in FIG. 4 in the reverse direction, the twisting direction opposite to the twisting direction obtained by sequentially repeating the steps (a) to (d) is a side line. The wire 2 can be wound around the annular core 1. For example, the steps (a) to (d) of FIG. 4 are repeated in the forward direction to wind the first-layer side wire 2 around the annular core 1 by S winding, and the steps are repeated in the reverse direction to perform the second-layer side wire 2. May be wound around the annular core 1 by Z winding.

  As shown in FIG. 4B, when the cassette 50 is located outside the ring of the annular core 1, the second cassette moving mechanism 30 moves the cassette 50 toward the rotation surface C of the annular core 1. Move from one side to the other. As described with reference to FIG. 3, the second cassette moving mechanism 30 a on one side causes the slide guide pins 32 a and 32 b to abut against the side surface 50 a of the cassette 50 and moves the cassette 50 to the other side. Then, the cassette 50 collides with the cassette receiving surface 31a of the second cassette moving mechanism 30b on the other side.

  When colliding with the cassette receiving surface 31a, the reaction force from the cassette receiving surface 31a acts on the cassette 50. As a result, the cassette 50 tries to rebound to the second cassette moving mechanism 30a on one side again. However, according to the manufacturing apparatus according to the present embodiment, the magnet 34 as the bounce suppression mechanism provided in the second cassette moving mechanism 30b on the other side generates a magnetic force so as to attract the cassette 50. For this reason, the magnet 34 suppresses that the cassette 50 bounces to one side.

  By the way, when the rebound suppressing mechanism is not provided as described above, rebound occurs when the cassette is moved by the second cassette moving mechanism. Then, when a large pressing force is applied to the cassette from one side to the other side in order to move the cassette at a high speed, a large reaction force is generated in the second cassette moving mechanism on the other side. As a result, the behavior of the cassette is not stable in the second cassette moving mechanism on the other side, and in the worst case, the cassette falls off the pin. If the behavior of the cassette is unstable, the side wire that is fed out from the cassette is not wound around the annular core in a fixed track, and the winding accuracy is lowered. For this reason, the moving speed of the cassette by the second cassette moving mechanism cannot be increased.

  However, according to the manufacturing apparatus according to the present embodiment, the magnet 34 suppresses the rebound of the cassette as described above. Therefore, even if the air cylinder 33 of the second cassette moving mechanism 30a on one side exerts a large pressing force from one side to the other side to move the cassette 50 at a high speed, the second cassette movement on the other side The mechanism 30b can receive the cassette 50 stably. Thereby, the moving speed of the cassette 50 can be increased, and the manufacturing speed of the annular concentric stranded cord can be increased while keeping the winding accuracy of the side wire 2 around the annular core 1 high.

  In the above description, when the cassette 50 moves from the second cassette moving mechanism 30a on one side to the second cassette moving mechanism 30b on the other side, the magnet 34 of the second cassette moving mechanism 30b on the other side suppresses rebound. However, the magnet 34 provided in the second cassette moving mechanism 30a on one side works similarly. When the second cassette moving mechanism 30b on the other side moves the cassette 50 from the other side of the rotation surface Ay of the annular core 1 to the one side inside the ring of the annular core 1, the cassette 50 is connected to the cassette moving mechanism 30a on the one side. A reaction force that collides with the cassette receiving surface 31a and tries to bounce to the other side is generated. However, the magnet 34 provided in the second cassette moving mechanism 30a on one side suppresses the reaction force and suppresses the rebound of the cassette 50.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  For example, in the above-described embodiment, the example in which the rebound suppressing mechanism is configured by the magnet 34 has been described, but the present invention is not limited to this example. For example, the rebound suppressing mechanism may be configured by a negative pressure source such as a pump, and the cassette 50 may be adsorbed to the second cassette moving mechanism 30 by the negative pressure to suppress the rebound of the cassette 50. Or you may comprise like 2nd embodiment and 3rd embodiment so that it may demonstrate below.

<Second embodiment>
FIG. 5 is an enlarged view of the second cassette moving mechanism of the manufacturing apparatus according to the second embodiment of the present invention. As shown in FIG. 5, the guide pins 132 of the second cassette moving mechanism 30 are formed so as to protrude toward each other along the rotation axis D of the reel 51 of the cassette 50. This guide pin 132 can be inserted into a support hole 66 provided in the cassette 50. The guide pin 132 is tapered from the root side toward the tip side. The outer peripheral surface 132 a of the guide pin 132 is a smooth curved surface and is an inclined surface inclined with respect to the rotation axis D of the reel 51.

In the present embodiment, the guide pin 132 functions as a bounce suppression mechanism as follows.
When the cassette 50 moves from one side to the other side, the edge 66 a of the support hole 66 of the cassette 50 collides with the outer peripheral surface 132 of the guide pin 132. Since the outer peripheral surface 132 is inclined, a reaction force R is generated in the cassette 50 in a direction inclined with respect to the rotation axis D of the reel 51. The reaction force R is a force including a component R1 in a direction along the rotation axis D of the reel 51 and a component R2 in a direction orthogonal to the rotation axis D of the reel 51. When the outer peripheral surface 132a of the guide pin 132 is not inclined, the reaction force R is only the component R1, and the cassette 50 rebounds greatly.

  However, according to the manufacturing apparatus according to the present embodiment, the guide pin 132 has a tapered shape from the root side toward the tip side, and the outer peripheral surface 132a is inclined, so that the reaction force R affects the rebound of the cassette 50. The component R1 is reduced. Thus, the guide pin 132 suppresses the rebound of the cassette 50 and functions as a rebound suppression mechanism. According to the present embodiment, the bounce of the cassette 50 can be suppressed with a simple configuration without mounting a magnet, a negative pressure source, or the like as in the first embodiment or its modification.

<Third embodiment>
FIG. 6 is an enlarged view of the second cassette moving mechanism of the manufacturing apparatus according to the third embodiment of the present invention. As shown in FIG. 6, the through-hole 266 of the cassette 50 of the manufacturing apparatus according to the present embodiment has an enlarged diameter portion 261 at the center in the width direction of the cassette 50 (the direction along the rotation axis D of the reel 51). The small diameter part 262 is provided in the both sides of the width direction. The enlarged diameter portion 261 and the small diameter portion 262 are connected by an inclined portion 263. A guide pin 230 can be inserted into the through hole 266.

  The second cassette moving mechanism 30 on the other side is formed with guide pins 230 protruding in a direction approaching each other along the rotation axis D of the reel 51 of the cassette 50. The guide pin 230 is a hollow member in which the accommodating portion 231 is provided.

  A screw portion 238 is provided on the outer peripheral portion 237 of the guide pin 230. The guide pin 230 is fixed to the second cassette moving mechanism 30 by engaging the screw portion 238 with the screw hole provided in the second cassette moving mechanism 30 and screwing the lock nut 239 into the screw portion 238.

  A hole 234 is provided in the outer peripheral surface of the guide pin 230. The accommodating portion 231 of the guide pin 230 is provided with a compression spring 233, a pushing member 235, and a ball member 236. The ball member 236 is formed larger than the hole 234, and the ball member 236 does not fall out of the guide pin 230.

  The compression spring 233 presses the pressing member 234 toward the tip end side of the guide pin 230 by a spring force. The front end surface of the pressing member 234 has a tapered shape. The front end surface of the pushing member 234 causes the ball member 236 to be applied with a force directed radially outward. Thereby, the ball member 2356 is always pushed outward in the radial direction.

  The separation distance between the ball member 236 and the cassette receiving surface 31 a is equal to the separation distance between the side surface 50 a of the cassette 50 and the large diameter portion 261. Thereby, when the side surface of the cassette 50 comes into contact with the cassette receiving surface 31a, the ball member 236 is positioned at the large diameter portion 261.

  When the cassette 50 is moved by the second cassette moving mechanism 30a on one side to the cassette receiving surface 31a of the second cassette moving mechanism 30b on the other side, the compression spring 233 is contracted when the ball member 236 passes through the small diameter portion 262. The ball member 236 is retracted to the inner diameter side. Further, the cassette 50 moves toward the second cassette moving mechanism 30b on the other side, and the side surface 50a of the cassette 50 comes into contact with the cassette receiving surface 41a. Then, the ball member 236 reaches a position facing the large-diameter portion 261 and is pushed by the spring force so as to protrude outward, and the ball member 236 comes into contact with the large-diameter portion 261.

  Here, when the reaction force that the cassette 50 collides with the cassette receiving surface 31 a and rebounds on the cassette 50 is applied, the inclined portion 263 between the large-diameter portion 261 and the small-diameter portion 262 is formed on the ball member 236 and the guide pin 230. Applying force to push back inside. However, the spring force of the compression spring 233 is set to be larger than the force for pushing back the ball member 236 generated by this reaction force. In this way, the cassette 50 is prevented from rebounding to one side.

  In addition, when the cassette 50 moves from the cassette moving mechanism 30b on the other side toward the second cassette moving mechanism 30a on the one side, if the air cylinder 33 pushes the cassette 50, the inclined portion 263 similarly has the ball member 236. Applying force to push back inward. However, the spring force of the compression spring 233 is set to be weaker than the force for pushing back the ball member 236 generated by the air cylinder 33 at this time. For this reason, the ball member 236 and the compression spring 233 do not hinder the operation of moving the cassette 50 by the air cylinder 33.

  Note that the spring force of the compression spring 233 can be adjusted by an adjustment screw 237 provided on the base side of the guide pin 230. By screwing the adjustment screw 237 toward the guide pin 237, the length of the accommodating portion 231 of the guide pin 230 can be narrowed and the spring force can be set large. Further, when the adjustment screw 237 is loosened, the length of the accommodating portion 231 can be expanded to reduce the spring force. Thus, even when the cassettes 50 having different weights are used, the spring force can be easily adjusted.

  Thus, in the manufacturing apparatus according to the present embodiment, when the cassette is pressed against the second cassette moving mechanism on the other side, the ball member 236 of the guide pin 230 is abutted against the through hole 266 of the cassette 50. The bounce of the cassette 50 is suppressed. Even with such a configuration, the rebound of the cassette 50 is suppressed, and an annular concentric stranded cord with high winding accuracy can be manufactured.

  At this time, the support hole 66 of the cassette 50 is formed with a large-diameter portion 261 as a concave portion corresponding to the spherical tip shape of the ball member 236. Thereby, when the cassette 50 moves to the second cassette moving mechanism 30b on the other side, the ball member 236 fits into the large diameter portion 261, and the cassette 50 can be reliably prevented from being rebounded.

1: Ring core 2: Side wire 10: A rotating mechanism 11: Housing 12: Clamp unit 13, 14: Pinch roller unit 15: Pressing roller 16: Roller drive motor 20: First cassette moving mechanism 21: Link mechanism 22: Movement mechanism drive motor 23: cassette connecting portion 30: second cassette movement mechanism 30a: second cassette movement mechanism 30b on one side: second cassette movement mechanism 50 on the other side: cassette 51: reel 52: case 53: guide block 53a : Guide hole 54: Slit 61: Inner peripheral part 62: Outer peripheral part 63: One side wall part 64: Other side wall part S: Internal space 65: Bearing 66: Support hole 66
67: Magnet 68: Magnetic body 230: Guide pin 231: Housing portion 233: Compression spring 234: Hole 235: Push member 236: Ball member 266: Through hole 261: Large diameter portion 262: Small diameter portion 263: Stepped portion

Claims (7)

A core rotation mechanism for rotating the annular core in the circumferential direction;
A first cassette moving mechanism for moving the cassette containing the side wire to the outside and inside of the ring of the annular core;
Moving the cassette from one side to the other side of the rotation axis of the annular core inside the ring of the annular core, and moving the cassette from the other side of the rotation axis of the ring core to the one side outside the ring of the annular core; A second cassette moving mechanism,
An annular concentric twisted cord is manufactured by moving the cassette to the inside and the outside of a ring of an annular core rotating in the circumferential direction, and spirally winding a side wire drawn from the cassette around the annular core. A cord manufacturing apparatus,
The second cassette moving mechanism is
A pair of holding portions for holding the cassette on each of one side and the other side of the rotating shaft of the annular core;
A pressing mechanism for pressing the cassette from one side toward the holding unit on the other side;
An apparatus for manufacturing an annular concentric stranded cord, comprising: a rebound suppressing mechanism that suppresses the cassette from rebounding to the other side when the cassette is pressed against the holding portion on one side by the pressing mechanism on the other side.   The apparatus for manufacturing an annular concentric stranded cord according to claim 1, wherein the rebound suppressing mechanism suppresses the rebound of the cassette by generating a magnetic force with the cassette. The magnet is a permanent magnet,
The magnetic force generated between the cassette and the cassette by the permanent magnet is set to be smaller than a pressing force applied to the cassette by the pressing mechanism and larger than a reaction force generated to the cassette by the pressing mechanism. Manufacturing equipment for annular concentric stranded cords.   The apparatus for producing an annular concentric stranded cord according to claim 1, wherein the bounce suppression mechanism adsorbs the cassette by negative pressure to suppress the bounce of the cassette. The cassette has a reel around which a side wire is wound,
The pair of holding portions includes guide pins that protrude in directions approaching each other along the rotation axis of the reel of the cassette, and can be inserted into support holes provided in the cassette.
The guide pin is tapered from the root side toward the tip side,
The apparatus for manufacturing an annular concentric stranded cord according to claim 1, wherein the bounce suppression mechanism is an outer peripheral surface of the guide pin. The cassette has a reel around which a side wire is wound,
The pair of holding portions includes guide pins that protrude in directions approaching each other along the rotation axis of the reel of the cassette, and can be inserted into support holes provided in the cassette.
The rebound suppressing mechanism is a contact portion that protrudes from the outer peripheral surface of the guide pin provided in the holding portion and abuts against the support hole of the cassette when the cassette is pressed against the holding portion. The manufacturing apparatus of the cyclic | annular concentric twisted cord of Claim 1.   The apparatus for manufacturing an annular concentric stranded cord according to claim 6, wherein a concave portion having a shape corresponding to a tip of the contact portion is formed in the support hole of the cassette.

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