JP2001047169A - Manufacture of cable bead, and manufacturing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the productivity and the quality by realizing the multi- layered winding in an extremely simple manner. SOLUTION: A tip of a layer wire 8 is temporarily attached to a core 7 by a chuck mechanism 5, a bobbin 3 is revolved inside/outside the core 7 while rotating the core 7 in the circumferetial direction to spirally wind the layer wire 8 around an outer circumference of the core 7, the chuck mechanism 5 is released from the core 7 before the tip of the layer wire 8 temporarily attached to the core 7 overlaps the position of revolution of the bobbin 3, and the interference of the chuck mechanism 5 with the bobbin 3 is avoided to continue the revolution of the bobbin 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a cable bead for various vehicles, and more particularly to a method and an apparatus for manufacturing a cable bead capable of realizing a multilayer winding very easily. It is.

[0002]

2. Description of the Related Art Conventionally, there has been known a method of manufacturing a cable bead in which a bobbin-wound layer wire is spirally wound around the outer circumference of a core while rotating an annular core in a circumferential direction. The problem here is the method of fixing the layer wire to the core at the beginning of winding, and whether this fixing method is simple and reliable has a great effect on productivity and quality.

[0003] That is, the primitive method of soldering the tip of the layer wire to the core is naturally inferior in productivity and quality, and even if it is a method of temporarily fixing mechanically, the temporary fixing mechanism is connected to the bobbin. Some measures are needed to avoid interference.

Further, in order to improve productivity and quality, it is necessary to be able to quickly switch to another rim diameter, and even if the length of the layer wire is increased, tangling, twisting, etc. will occur. It must be able to be rolled naturally, such as hand-wound, without causing it. Moreover, it is natural that a mechanically complicated one is inappropriate from the viewpoint of reliability and economy.

[0005]

However, regarding the method of winding the layer wire, the conventional temporary fixing method is completely different between the S-winding and the Z-winding. Therefore, two dedicated manufacturing machines are required. Also, there is a problem that the lower limit of the twist pitch of the layer wire is limited due to space reasons for avoiding interference. Further, even if a multilayer winding can be realized, the structure is complicated and the economy is difficult, and there is a problem of noise and the like, which is not suitable for practical use. Furthermore, switching the core to another rim diameter was also troublesome.

On the other hand, regarding a method of unwinding a layer wire, a method of unwinding a bobbin by pushing it into a hollow container without being wound around the bobbin while being pulled by the rotation of the core,
As the layer length increases, the layers become entangled,
There was a problem that it could not be unwound well. Further, in the free unwinding using the outer peripheral surface guide, there is a problem that the layer wire is twisted and cannot be wound well.

Accordingly, the present invention can cope with both S winding and Z winding, and can switch between a multilayer winding and a different rim diameter while preventing tangling and twisting of the layer wire, thereby improving productivity and quality. It is an object of the present invention to provide a practical method and apparatus for manufacturing a cable bead which can be improved.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its gist is as follows.
Next, regarding the method of winding the layer wire, the tip of the layer wire is temporarily fixed to the core by a chuck mechanism, and while rotating the core in the circumferential direction, the bobbin is revolved in and out of the core to spirally rotate the layer wire around the outer periphery of the core. The chuck mechanism is released from the core before the tip of the layer wire temporarily fixed to the core and overlaps the bobbin's revolving position, avoiding interference between the chuck mechanism and the bobbin, enabling the bobbin to continue revolving. The present invention relates to a method for manufacturing a cable bead. And, preferably,
The core stands upright and the bobbin revolves on a horizontal plane.

[0009] In addition, the method of unwinding the layer wire is such that the length of the layer wire is always constant between the winding point of the layer wire around the core and the unwinding point of the layer wire from the bobbin. The present invention relates to a method for manufacturing a cable bead in which the inside and outside of a core are revolved while rotating a bobbin. And, preferably, a pressing roller is arranged around the bobbin, and the layer wire is always pressed against the bobbin, or a driving roller for sandwiching the layer wire is provided at a point where the layer wire is unwound from the bobbin. ,
By rotating the sandwiching roller between the sandwiching roller and the bobbin so that a tensile force always acts on the layer wire, the layer wire is prevented from winding and expanding from the bobbin.

In the method of manufacturing a cable bead, it is naturally more preferable to apply the above-described method of winding a layer wire in addition to the method of unwinding the layer wire.

Secondly, with regard to a cable bead manufacturing machine, a core rotating mechanism for rotating an annular core in a circumferential direction, a bobbin around which a layer wire is wound, a spool for supporting the bobbin and revolving inside and outside of the core, A cable bead manufacturing machine comprising a chuck mechanism for temporarily fixing a tip of a layer wire to a core, wherein the chuck mechanism moves as the spool revolves as the core rotates, and the chuck mechanism moves before the spool revolves at the revolving position. The present invention relates to a cable bead maker in which a mechanism is released from a core. And preferably, it has a core guide for erecting the core in the vertical direction, and a chuck arm that rotates between a high point and a low point of the core while supporting the chuck mechanism, and the chuck arm is configured to rotate the core and the rotation center. It is configured to rotate in synchronism with the core while being coaxial, and to rotate on the side opposite to the side where the spool revolves inside and outside the core on a horizontal plane.

A bobbin drive motor that rotates at a constant speed, and a rocker mechanism that rocks with the bobbin drive motor mounted thereon, wherein the rocker mechanism rocks once while the spool revolves once. By doing so, the length of the layer wire is always constant between the winding point of the layer wire around the core and the unwinding point of the layer wire from the bobbin. Around the bobbin side, or a pinch that drives the layer wire so that a tensile force always acts at the point where the layer wire unwinds from the bobbin. The present invention relates to a cable bead manufacturing machine provided with rollers.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A cable bead manufacturing machine according to the present invention comprises: a core rotating mechanism for rotating an annular core in a circumferential direction;
It comprises a bobbin around which a layer wire is wound, a spool that supports the bobbin and revolves around the inside and outside of the core, and a chuck mechanism that temporarily fixes the tip of the layer wire to the core.

Here, as the core rotating mechanism, there are a roller, a belt, and the like driven by a motor. A plurality of V rollers are used as a core guide so that the core stands upright, and a core driving motor is attached to the V roller at a low point. Are preferably connected. When the core is placed in the horizontal direction, a U-shaped guide and rollers in the horizontal and vertical directions are required for supporting the core, while the above-mentioned core rotation mechanism is mechanically simple. This is because not only the reliability is improved and the cost is improved, but also it is easy to switch to another rim diameter.

The layer wire is wound around a bobbin. This is for preventing the layer wire from being entangled or twisted as in the case where the layer wire is pushed into the hollow container or the outer peripheral surface guide is used.

The bobbin is supported by a spool. Although the layer wire is unwound from the bobbin, it is necessary to revolve the bobbin inside and outside the core in order to spirally wind the layer wire around the core. Thus, the spool supporting the bobbin revolves around the inside and outside of the core to enable spiral winding.

Here, it is preferable that the spool revolves inside and outside the core on a horizontal plane. If revolving on a vertical surface is affected by gravity, unless revolving with sufficient power, the turning speed will differ between when the spool rises and when the spool descends, which will adversely affect the winding of the layer wire is there.

In the present invention, at the beginning of the winding of the layer wire, it is temporarily fixed to the core by the chuck mechanism. The chuck mechanism temporarily fixes the layer wire to the core by sandwiching the layer wire and the core between the chucks. For example, there is a mechanism in which two flat plates are opened and closed by an electromagnet.

The chuck mechanism moves with the rotation of the core while sandwiching the layer wire, and is released from the core before overlapping with the revolving position of the spool. If the layer wire is wound to some extent, the layer wire will not separate from the core even if the chuck is opened and the temporary fixing is released, but if the chuck mechanism is not released from the core, the chuck mechanism will interfere with the spool and the layer wire will not be released. This is because it becomes difficult to continue winding. Note that, in order to avoid interference with the spool, the chuck arm is rotated to the side opposite to the side where the spool is located.

Here, the chuck mechanism is supported by a rotating chuck arm about a half circumference of the core, and rotates in synchronization with the core, with the rotation center being coaxial with the core. That is, for the first half circumference when winding the layer wire, the tip of the layer wire is chucked, the spool is revolved while rotating the chuck arm, and the layer wire is wound accurately on the core. In addition, the rotation in synchronization with the core is not only when the chuck arm is rotated in accordance with the rotation of the core by the core rotation mechanism,
By rotating the chuck arm while chucking,
The case where the core is also rotated without using the core rotating mechanism, and conversely, the case where the core is rotated while being chucked, so that the chuck arm is also rotated without using the chuck arm rotating mechanism is included.

After the chuck mechanism is released from the core and released so as not to interfere with the spool, the winding of the layer wire is continued by rotating the core by the core rotating mechanism and revolving the spool. As described above, in the present invention, the temporary fixing of the layer wire to the core can be easily and reliably performed, and both the S winding and the Z winding can be performed simply by reversing the revolving direction of the spool. Thus, a multilayer winding can be easily realized.

Also, when winding the layer wire,
It is preferable that the length of the layer wire is always constant between the winding point of the layer wire around the core and the unwinding point of the layer wire from the bobbin. This is because the layer wire can be wound naturally like a manual winding.

That is, the spool supporting the bobbin is
Revolves around the core. Then, in the state where the spool is inside the core and the state where it is outside the core, the linear distance between the winding point of the layer wire to the core and the unwinding point of the layer wire from the bobbin is short in the former state and the latter is short. It becomes long in the state of and is not constant. Therefore, by rotating the bobbin to rewind the layer wire when the above straight line distance is short, and by rotating the bobbin to unwind more of the layer wire when the straight line distance is long, the layer wire to the core is Regardless of the linear distance between the winding point of the wire and the unwinding point of the layer wire from the bobbin, the length of the layer wire between them is always kept constant.

In order to make the length constant, the bobbin may be positively rotated by the bobbin driving motor. And when the spool revolves, the distance to the winding point of the layer wire becomes shorter,
While turning from 0 ° to 180 °, wind up the layer wire by the amount that it becomes shorter, and the distance becomes longer.
During 360 °, the layer wire is unwound accordingly.

Here, the rotation speed of the bobbin can be electrically controlled, but it is preferable to mechanically realize the rotation speed from the viewpoint of reliability and economy. Specifically, the rotation speed of the bobbin drive motor is constant, but the bobbin drive motor is swung to make the rotation speed of the bobbin variable. That is, the bobbin drive motor is mounted on the cradle mechanism, and the spool and the cradle mechanism are connected by a crank, a cam, or the like. And, while the distance to the winding point of the layer wire is decreasing, and the spool is turning from 0 ° to 180 °, the bobbin drive motor is relatively rotated by swinging in the direction opposite to the rotation direction of the bobbin drive motor. Lower the number of rotations, conversely, the distance becomes longer, 180 ° ~
While the spool rotates up to 360 °, the rotational speed of the bobbin drive motor is relatively increased by swinging in the same direction as the rotational direction of the bobbin drive motor.

Further, when a layer wire is wound around the bobbin, the layer wire has a hammer diameter larger than the bobbin diameter, so that the layer wire is swelled and swelled as it is, which adversely affects the winding around the core. Therefore, as one of the measures, it is preferable to arrange a pressing roller around the bobbin so that the layer wire is always pressed against the bobbin. It is effective to arrange three or more pressing rollers.

In addition, by providing a sandwiching roller which is driven by sandwiching the layer wire so that a tensile force always acts on the point where the layer wire is unwound from the bobbin, winding swelling can be prevented. That is, as described above, between the winding point of the layer wire around the core and the unwinding point of the layer wire from the bobbin, unwinding or unwinding the layer wire so that the length of the layer wire becomes constant. However, when unwinding, the pinching roller is rotated faster than the bobbin, and when rewinding, a brake is applied by a one-way clutch or the like, so that an appropriate tensile force is applied to prevent winding swelling.

In order to prevent the layer wire from being entangled at the time of unwinding, it is preferable to cut a screw corresponding to the layer wire diameter on the outer periphery of the bobbin so that the layer wire does not move in the horizontal direction.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a cable bead manufacturing machine of the present invention. In FIG. 1, a cable bead manufacturing machine includes a core driving roller 1A and a core driving motor 1B.
A core rotating mechanism 1, a core guide 2, a bobbin 3,
It comprises a spool 4, a chuck mechanism 5 including a layer tip chuck 5A and a chuck arm 5B.

The core 7 is erected vertically by a core drive roller 1A having a V-shaped cross section and the core guide 2 also having a V-shaped cross section. Also, layer wire 8
Is wound around the bobbin 3, and is wound around the outer periphery of the core 7 near the highest point of the core 7. The arrangement of the core guide 2 and the length of the chuck arm 5B are variable, so that the cores 2 can correspond to cores 7 having various diameters.

The bobbin 3 is supported by a spool 4 and revolves inside and outside the core 7 on a horizontal plane by a spool turning motor 4A. The revolving direction of the spool 4 is reversed by reversing the rotation direction of the spool turning motor 4A, so that both the S winding and the Z winding can be supported.

In FIG. 1, at the beginning of winding of the layer wire 8, the tip of the layer wire 8 is temporarily fixed to the core 7 by the layer tip chuck 5A. And
The chuck arm rotation motor 5C causes the chuck arm 5B to make a half turn from the highest point to the lowest point of the core 7 on the side opposite to the side where the spool 4 is located. At the same time, the core 7 rotates by half, the spool 4 revolves by half, and the layer wire 8 is spirally wound around the core 7.

When the chuck arm 5B reaches the lowest point of the core 7, the layer tip chuck 5A opens, and the rotation of the core driving roller 1A keeps the rotation of the core 7 and the revolution of the spool 4 continued. Therefore, the layer wire 8 is continuously spirally wound around the outer periphery of the core 7. On the other hand, the chuck arm 5B rotates in the reverse direction and returns to the highest point. Therefore, interference with the spool 4 is avoided and provision is made for provisional fixing of the next layer wire 8.

In this manner, as shown in FIG. 2, after the first layer wire 8 is spirally wound around the core 7, the same procedure is performed except that the revolving direction of the spool 4 is reversed. By repeating, a multilayer winding in which S windings and Z windings are alternately stacked is realized.

The bobbin 3 is a bobbin drive motor 3A.
Rotate by. Here, the rotation speed of the bobbin driving motor 3A is constant, but the bobbin driving motor 3A is mounted on a cradle mechanism 9 including a crank 9A and a cradle 9B. The cradle mechanism 9 swings once while the spool 4 revolves once.

The cradle mechanism will be described in detail with reference to the top view of the cable bead manufacturing machine of the present invention shown in FIG. A disk 4B on which a crank 9A is rotatably attached is connected to the spool turning motor 4A, and the rotation of the disk 4B causes the crank 9A to expand and contract. On the other hand, the bobbin drive motor 3A is mounted on the cradle 9B,
B rotates while keeping the center of rotation coaxial with the bobbin drive motor 3A.

Since the crank 9A and the cradle 9B are connected, the outer frame of the bobbin drive motor 3A swings by the rotation of the disk 4B. For this reason, even if the rotation speed of the motor shaft with respect to the outer frame of the bobbin driving motor 3A is constant, it acts as if the rotation speed is changed by the swing of the outer frame.

That is, the distance from the winding point of the layer wire to the core 7 is reduced from 0 ° to 180 °.
During the rotation of the spool 4 up to 180 °, the spool 4 swings in the direction opposite to the rotation direction of the bobbin drive motor 3A, and the rotation speed of the bobbin drive motor 3A relatively decreases, and conversely, the distance increases. During the rotation of the spool 4 from the rotation angle of the bobbin driving motor 3A to the rotation direction of the bobbin driving motor 3A, the rotation speed of the bobbin driving motor 3A relatively increases.

Therefore, in the cable bead manufacturing machine of the present invention, as shown in FIG. 1, when the layer wire 8 is wound, the winding point of the layer wire 8 around the core 7 and the unwinding of the layer wire 8 from the bobbin 3 Since the layer wire 8 is unwound and unwound from the bobbin 3 so that the length of the layer wire is always constant between the points, the layer wire can be wound naturally like a manual winding. it can.

Further, four pressing rollers 10 are arranged around the bobbin 3. Therefore, the layer wire 8 is always pressed against the bobbin 3 so that the layer wire 8 is prevented from being swollen.

FIG. 4 is a front view showing another example for preventing winding of the layer wire. In the example shown in FIG. 4, a pinching roller 11 that pinches and drives the layer wire 8 so that a tensile force always acts is provided at a point beyond the unwinding point of the layer wire 8 from the bobbin 3.

That is, as described above, the length of the layer wire 8 is constant between the winding point of the layer wire 8 around the core and the unwinding point of the layer wire 8 from the bobbin 3. 8 is unwound or unwound, but at the time of unwinding, the rotation of the bobbin 3 is accelerated by the roller drive gear 11A and transmitted to the sandwiching roller 11. Therefore, the layer wire 8 receives a force in the direction of unwinding faster than the rotation of the bobbin 3, and the swelling is prevented by the action of the appropriate tensile force. In addition, the sandwiching roller 11 always receives a force in a direction in which the pair of rollers tries to come into contact with each other by the tensile force of the spring 11B.

On the other hand, at the time of rewinding, as shown in a top view in FIG. 5, a brake is applied to rewind the layer wire 8 by the one-way clutch 11C. Therefore, an appropriate tensile force acts as in the unwinding, and the swelling is prevented.

[0044]

As described above, the present invention relates to a method for winding a layer wire, and temporarily fixes the end of the layer wire to the core by a chuck mechanism, and rotates the core in the circumferential direction, thereby attaching the bobbin to the inside and outside of the core. By revolving, the layer wire is spirally wound around the outer periphery of the core, and the chuck mechanism is released from the core before the tip of the layer wire temporarily fixed to the core overlaps the bobbin's revolving position, causing interference between the chuck mechanism and the bobbin. , The revolving of the bobbin can be continued, so that the S winding and the Z winding can be alternately and easily wound in multiple layers, and problems such as entanglement and twisting of the layer wire are prevented, The productivity and quality of cable beads can be greatly improved.

In particular, by erecting the core in the vertical direction, it becomes flexible so as to be able to cope with a plurality of rim diameters, and by revolving the bobbin on a horizontal plane, it becomes possible to stabilize the winding of the layer wire. Was.

The method of unwinding the layer wire is such that the length of the layer wire is always constant between the winding point of the layer wire around the core and the unwinding point of the layer wire from the bobbin. Since the bobbin is rotated around the core inside and outside,
It became possible to wind naturally like a manual winding.

Further, a pressing roller is arranged around the bobbin, and the layer wire is constantly pressed against the bobbin, or a driving roller for sandwiching the layer wire is provided at a point where the layer wire is unwound from the bobbin. By rotating the sandwiching roller between the sandwiching roller and the bobbin so that a tensile force always acts on the layer wire, it is possible to effectively prevent the layer wire from rolling up from the bobbin.

[Brief description of the drawings]

FIG. 1 is a front view showing a cable bead manufacturing machine of the present invention.

FIG. 2 is a diagram illustrating a state where a layer wire is spirally wound around a core;

FIG. 3 is a top view showing a cable bead manufacturing machine of the present invention.

FIG. 4 is a front view illustrating an example of prevention of swelling of a layer wire.

FIG. 5 is a top view illustrating an example of prevention of swelling of a layer wire.

[Explanation of symbols]

 1 Core rotation mechanism 1A Core drive roller 1B Core drive motor 2 Core guide 3 Bobbin 3A Bobbin drive motor 4 Spool 4A Spool rotation motor 4B Disk 5 Chuck mechanism 5A Layer tip chuck 5B Chuck arm 5C ‥ Chuck arm rotation motor 7 ‥ Core 8 ‥ Layer wire 9 ‥ Cradle mechanism 9A ‥ Crank 9B ‥ Cradle 10 ‥ Pressing roller 11 ‥ Pinch roller 11A ‥ Roller drive gear 11B ‥ Spring 11C ‥ One-way clutch

Continued on the front page (72) Inventor Norio Abe 3-1-1, Ogawahigashicho, Kodaira-shi, Tokyo F-term (reference) 4E070 AB11 BD05

Claims (10)

[Claims] 1. While rotating an annular core in a circumferential direction,
In a method for manufacturing a cable bead in which a layer wire wound on a bobbin is spirally wound around the outer periphery of a core, the tip of the layer wire is temporarily fixed to the core by a chuck mechanism, and the core is rotated in the circumferential direction, while the core is rotated in and out of the core. The layer wire is spirally wound around the core by revolving the bobbin, and the chuck mechanism is released from the core before the tip of the layer wire temporarily fixed to the core overlaps the bobbin revolving position. A method for manufacturing a cable bead, characterized in that the bobbin revolves continuously by avoiding interference of the cable bead. 2. The method according to claim 1, wherein the layer wire is spirally wound around the outer periphery of the core by erecting the core in a vertical direction and revolving the bobbin on a horizontal plane. . 3. The length of the layer wire is always constant between the point of winding the layer wire around the core and the point of unwinding the layer wire from the bobbin.
A method for manufacturing a cable bead, comprising revolving the inside and outside of a core while rotating a bobbin. 4. The layer wire according to claim 3, wherein a pressing roller is arranged around the bobbin, and the layer wire is constantly pressed against the bobbin so as to prevent the layer wire from rolling up from the bobbin. Cable bead manufacturing method. 5. A driving roller for sandwiching the layer wire is provided at a point beyond the point where the layer wire is unwound from the bobbin, and the sandwiching roller is disposed between the sandwiching roller and the bobbin so that a tensile force always acts on the layer wire. The method for producing a cable bead according to claim 3, wherein the rotation prevents the layer wire from swelling from the bobbin. 6. A core rotating mechanism for rotating an annular core in a circumferential direction, a bobbin around which a layer wire is wound, a spool for supporting the bobbin and revolving inside and outside the core, and a tip of the layer wire being temporarily attached to the core. A cable bead manufacturing machine comprising a chuck mechanism for stopping, wherein the spool revolves with rotation of the core, the chuck mechanism moves, and the chuck mechanism is released from the core before overlapping with the revolving position of the spool. Cable bead making machine characterized by being made in. 7. A core guide for vertically erecting a core, and a chuck arm that rotates between a high point and a low point of the core while supporting a chuck mechanism, wherein the chuck arm and the rotation center of the core 7. The cable bead according to claim 6, wherein the cable bead rotates in synchronization with the core while being coaxial, and rotates on the side opposite to the side where the spool revolves inside and outside of the core on a horizontal plane. machine. 8. A bobbin drive motor that rotates at a constant speed, and a cradle mechanism that oscillates with the bobbin drive motor mounted thereon, wherein the cradle mechanism rotates while the spool revolves once.
By swinging, the length of the layer wire is always constant between the winding point of the layer wire around the core and the unwinding point of the layer wire from the bobbin. Cable bead making machine. 9. The cable bead manufacturing machine according to claim 8, wherein a pressing roller for constantly pressing the layer wire toward the bobbin is disposed around the bobbin. 10. The cable according to claim 8, wherein a pinching roller for pinching and driving the layer wire so that a tensile force always acts is provided at a point beyond the unwinding point of the layer wire from the bobbin. Bead making machine.