JP3833210B2 - Bead wire winding device - Google Patents

Description

  The present invention relates to a bead wire winding device, and more particularly to a structure of a clamp portion at the tip of a bead wire when the bead wire is wound.

  Conventionally, in a winding device for a single bead wire used for a bead portion of a tire, the number of windings is larger than that for winding a plurality of bead wires, and the production amount is small, so the equipment cost may be low. It was sought after.

  By the way, as a conventional bead manufacturing apparatus, the former whose diameter is always expanded is reduced by pressing and driving from the fixed side, and the tip of the clamped single-winding bead wire is pushed and opened. The configuration does not include a driving device (see, for example, Patent Document 1).

  However, the conventional single bead manufacturing apparatus is divided into, for example, a disc-shaped support plate 2 attached to the rotary main shaft 1 as shown in FIG. The former forming member 3 is disposed at a predetermined interval, and an air cylinder 5 for opening and closing the clamp claw 4 for clamping the tip Wa of the wire W is attached to one of the former forming members 3. It was a composition.

However, in order to drive the air cylinder 5, it is necessary to install a joint 6 for connecting a pipe such as a rotary joint on the rotating main shaft 1, or to perform complicated processing on the rotating main shaft 1 itself. The air pipe 7 for operating 5 must be passed through a complicated configuration.
JP-A-9-174716

  This invention pays attention to such a conventional problem, and aims to provide a bead wire winding device that can be manufactured at low cost with a simple structure and can efficiently perform the bead wire winding operation. It is.

  In order to achieve the above object, according to the present invention, a plurality of former forming members divided in a circumferential direction of the support plate are arranged at a predetermined interval on one side surface of a disc-like support plate attached to the rotating spindle. And each of the former ring members is slidably attached in a radial direction via an expansion / contraction mechanism provided on the rotary main shaft, and the elastic member is provided between the former plate and one side surface of the support plate. A clamp claw that urges the wire tip in a direction that always clamps the wire via a pin, and for releasing the clamp that presses the clamp claw in the release direction against the elastic force of the elastic member on the other side of the support plate The gist is that a cylinder is provided.

  Here, the clamp pawl is fixed to an operating rod that passes through the support plate, the elastic member is attached to one end of the operating rod, and a clamp releasing cylinder is attached to the other end of the operating rod that passes through the support plate via a rotating roller. It is configured to be able to rotate and slide with the tip of the rod.

  In this way, it is not necessary to arrange a cylinder etc. that clamps the tip of the wire on the support plate and the former ring member that are driven to rotate integrally with the rotating spindle, so the structure is simple and can be manufactured at low cost. The bead wire can be wound efficiently.

According to the present invention, the former forming member divided into a plurality of portions in the circumferential direction of the support plate is disposed at a predetermined interval on one side surface of the disc-like support plate attached to the rotation main shaft as described above. In addition, each former ring member is slidably attached in a radial direction via an expansion / contraction mechanism provided on the rotation main shaft, and an elastic member is interposed between the former plate and one side surface of the support plate. A clamp claw that urges the wire tip in a direction that always holds the wire is provided, and a clamp release cylinder that presses the clamp claw in the release direction against the elastic force of the elastic member is provided on the other side of the support plate. provided, wherein the clamp jaws is fixed to the actuating rod through the supporting plate, mounting the elastic member to one end of the rod, roller to the other end of the through-actuating rod a supporting plate Provided, relative to the tip plate provided at the tip of the roller to the clamp release cylinder rod, the rotation, and since slidably contacted so, simplifies the construction of the device and the rotary spindle, on which can be manufactured at low cost There is an effect that the bead wire can be wound efficiently.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Note that the same components as those in the conventional example are denoted by the same reference numerals and description thereof is omitted.

  FIG. 1 is a schematic configuration diagram of a bead wire winding device embodying the present invention, and FIG. 2 is a schematic configuration diagram of the winding device in a state in which a tip Wa of the wire W is released. A former ring member 13 divided into a plurality of parts in the circumferential direction of the support plate 2 is disposed at a predetermined interval on one side surface of a disc-shaped support plate 2 attached to the rotary spindle 1. The former ring member 13 is slidably attached in the radial direction via an expansion / contraction mechanism 11 including a slide member 8, a link member 9, a spring 10 and the like provided on the rotary main shaft 1.

  That is, a slide member 8 is slidably fitted to the extendable rod 1a of the rotary spindle 1, and this slide member 8 is always attached to the support plate 2 side by a spring 10 attached to the distal end side of the rod 1a. The slide member 8 and each former ring member 13 are connected to each other by a link member 9 via a pin 14. Accordingly, the slide member 8 reciprocates along the rod 1a due to the expansion and contraction operation of the rod 1a, and at the same time, the former member 13 connected via the link member 9 and the pin 14 is connected to the disc-shaped support plate 2. It is comprised so that a diameter may be expanded and reduced along.

  One of the former members 13 includes a clamp claw 16 that urges the wire W in such a direction as to always hold the tip Wa of the wire W via an elastic member 15 such as a spring between one side surface of the support plate 2. An operating rod 17 penetrating the support plate 2 is attached to the clamp claw 16.

  An elastic member 15 for urging the clamp claw 16 is attached to one end of the operating rod 17, and the rod 18 a of the clamp release cylinder 18 is connected to the other end of the operating rod 17 penetrating the support plate 2. A roller 20 is provided in contact with the tip plate 19 so as to rotate and slide.

  That is, the clamp release cylinder 18 is attached to a frame or the like (not shown) of the winding device separately from the support plate 2 that rotates together with the rotary spindle 1, the former member 13, and the clamp pawl 16. The clamp claw 16 is pressed in the releasing direction against the elastic force of the elastic member 15 only when releasing.

  Next, the operation of the bead wire winding device will be described.

  When a single wire W is wound around the former ring member 13 a plurality of times to form a ring-shaped bead ring, the wire W that has been supplied first has the tip Wa as one side surface of the support plate 2 and the former ring member. The 13 clamp claws 16 are clamped by the elastic force of the elastic member 15.

  In this state, the rotating spindle 1 is rotated to simultaneously rotate the support plate 2, the former ring member 13 and the clamp claw 16, and the wire W is wound around the outer periphery of the former ring member 13 to form a ring-shaped bead ring. To do.

  After forming the bead ring, the clamp releasing cylinder 18 is extended to bring the tip plate 19 of the rod 18a into contact with the roller 20 of the operating rod 17, and the clamp pawl 16 is moved against the elastic force of the elastic member 15. When pressed in the releasing direction, the tip end Wa of the wire W clamped with one side surface of the support plate 2 is released, and after or simultaneously with the release of the tip end Wa of the wire W, the rod 1a of the rotary spindle 1 is released. Is extended, the slide member 8 moves along the rod 1 a against the elastic force of the spring 10.

  When the slide member 8 moves toward the tip of the rod 1a, each former ring member 13 connected via the link member 9 and the pin 14 is pulled in the direction of reducing the diameter along the disc-shaped support plate 2. The bead ring that has moved while being held by the former ring member 13 is opened, and the formed bead ring can be taken out from the winding device.

  As described above, in the embodiment of the present invention, the support plate 2 and the former member 13 that are rotationally driven integrally with the rotary spindle 1 are provided with a clamp release cylinder for releasing the clamp of the tip Wa of the wire W. Since 18 does not need to be attached, the entire apparatus, in particular, the structure of the rotary main shaft 1 is simplified and can be manufactured at low cost.

It is a schematic block diagram of the winding apparatus of the bead wire which implemented this invention. It is a schematic block diagram of the winding apparatus of the state which cancel | released the front-end | tip of the wire. It is a schematic block diagram of the conventional bead wire winding apparatus.

Explanation of symbols

W wire Wa wire tip 1 rotating spindle 1a rod 2 support plate 3 former ring member 4 clamp claw 5 air cylinder 6 joint 7 air pipe 8 slide member 9 link member 10 spring 11 expansion / contraction mechanism 13 former ring member 14 pin 15 elastic Member 16 Clamp claw 17 Operating rod 18 Clamp release cylinder 18a Rod 19 Tip plate 20 Roll

Claims (1)

On one side surface of a disk-shaped support plate attached to the rotation main shaft, a plurality of former forming members divided with respect to the circumferential direction of the support plate are disposed at predetermined intervals, and each of the former forming members Is attached so as to be slidable in the radial direction through an expansion / contraction mechanism provided on the rotating main shaft, and the tip of the wire is always held between the former member and one side surface of the support plate via an elastic member. A clamp claw that biases in the direction is provided, and a clamp release cylinder that presses the clamp claw in a release direction against the elastic force of the elastic member is provided on the other side of the support plate, and the clamp claw is supported is fixed to the actuating rod through the plate, attaching the elastic member to one end of the rod, the roller is provided a support plate to the other end of the through-actuating rod, Clan the roller Against tip plate provided at the tip of the rod of the release cylinder, rotating and winding apparatus of the bead wire, characterized in that slidably contacted so.

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