JPS6051413B2 - Wire clip forming equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus capable of forming a plurality of synthetic resin clips into a wire at arbitrary intervals.

Wire clips are increasingly being used for electrical equipment in automobiles and wiring work in prefabricated houses.

As shown in FIG. 1, this wire clip has a plurality of synthetic resin clips attached to a wire 1 at required intervals. As the wire, a synthetic resin wire material such as polypropylene or vinyl chloride, or an electric wire is used, and sometimes a string or band-shaped wire is used as the wire.

This wire clip can be manufactured by injection molding. In this case, when the interval 1 is equal, a series of wire clips can be easily molded by placing multiple molds at each interval and performing insert molding, but when the interval 1 is divided into sections such as l', it is possible to easily mold a series of wire clips. In each case, the spacing, ie the length of the wire 1 between each clip 2, must be partially adjusted by some means. This invention was conceived in view of the above, and its purpose is to reduce the length of the wire placed on the lower mold between a plurality of molds arranged in parallel at regular intervals. It is an object of the present invention to provide a new wire clip forming device that can arbitrarily adjust the clip spacing. A mold, a wire guide member protruding from the lower mold parting surface of the mold, and the length of the wire arranged over each lower mold, using the guide member,
It is characterized by comprising a wire pull-out member movably provided between the lower molds so as to be partially changeable. This invention will be explained in detail below with reference to embodiments shown in FIG. 2 and below. In the figure, reference numeral 11 denotes a fixed mold plate on the machine stand, and on its upper surface, lower molds 12a of five clip molding molds 12 are arranged in parallel at equal intervals.

13 is a movable mold plate above the machine base, and a ram 15 of the mold clamping device 14
A lower mold 12a and an upper mold 12b for closing the molds are attached to the lower surface thereof.

Reference numeral 16 denotes a wire feeding device for a machine side plate located on the side of the mold 12, and is equipped with a cutter 17 and a chuck device 19 that reciprocates on a rail 18. , the wire 1 can be pulled out and placed on each lower mold 12a.

On the parting surface of each of the lower molds 12a, a pair of roller guide members 21 for the wire 1 are protruded close to the cavity.

Further, in the space 22 between the lower molds 12a, a pull-out member 24 for the wire 1, which is integral with the seat body 23 and has rollers similar to the guide member 21, is arranged movably in correspondence with the guide member 21. The wire 1 is disposed between the guide member 21 and the pull-out member 24, and is inserted into a part of the cavity when the mold is closed. Each of the above-mentioned drawer members 24 is connected to a piston rod 26 of an air or hydraulic cylinder 25 attached to the upper surface of the fixed mold plate 11.
When the wire 1 is moved in the cylinder direction through the space 22, the wire 1 is pulled out into the space 22 by about twice the amount of movement by the guide member 21.

In the figure, 28 is an injection device, and 29 is a hot runner mold provided over each lower mold 12a.

Next, the operation of the apparatus will be explained with reference to FIGS. 3 and 4.

First, as shown in FIG. 3, when each mold 12 is in an open state and the pull-out member 23 is in a position corresponding to the guide member 21, the wire 1 is supplied to each lower mold 12a. be exposed.

This supply is performed by gripping and running the wire end by the chuck device 19, and the wire 1 is guided by both the kite member 21 and the pull-out member 24, and is always provided in a part of the cavity. Located within the groove.

Next, as shown in FIG. 4, the cylinder 25 is operated to move the drawer member 24 in the cylinder direction.

Due to this movement, the wire 1a located between the lower molds is drawn out in the cylinder direction and becomes longer. In this case, if the intervals between the clips to be formed later are equal, all the cylinders 25 may be operated by the same amount according to their dimensions, but if the intervals are different as shown in FIG. The amount of operation of each cylinder 25 may be changed accordingly.

Further, the operating amount of each cylinder 25 can be arbitrarily set using a sensor, a limit switch, etc., and can be adjusted as necessary by using a control device. As described above, the wire 1 in each space 22 is
Once the length adjustment of a is completed, lower mold 12a is
and the upper mold 12b are closed to perform insert injection molding of the clip l.

In this case, each guide member 21 is designed to fit within the upper die 12b. Next, open the upper mold 12b, and each cylinder 2
The piston rod 26 of No. 5 is actuated outward to move the pull-out member 24 beyond the position shown in FIG.

As a result of this drawing out, the newly pulled out wire 1 is positioned on top of each lower die 12a. and cutter 17
After cutting the wire 1 and removing the formed wire clip, the chuck device 19 is returned to its original position.
Grasp the end of the wire 1 again and prepare for the next step. As described above, this invention uses a guide member protruding from the lower mold parting surface of the mold and a pull-out member movably provided between the lower molds to adjust the length of the wire before forming the clip. ,
Since parts can be changed between molds, the spacing between each clip can be adjusted as desired. In addition, since dimensions can be changed only by moving the drawer member,
The molding operation is not particularly complicated, and the equipment is simple and does not require high costs since it is only necessary to arrange a pull-out member and its moving device between each lower mold. have

[Brief explanation of drawings]

The drawings illustrate the clip forming apparatus according to the present invention, in which Fig. 1 is a perspective view of a wire clip, Fig. 2 is a front view of the apparatus, Fig. 3 is a plan view of the machine base, and Fig. 4 is a perspective view of the wire clip. FIG. 3 is a plan view of the machine stand side showing the operating state of the drawer member. 1...Wire, 2...Clip, 11...
...Fixed mold plate, 12...Mold, 12a.
... lower mold, 12b ... upper mold, 21 ... guide member, 22 ... space section, 24 ... drawer member,
25...Cylinder, 26 cylinders.

Claims (1)

[Claims] 1. A wire clip forming device in which a plurality of synthetic resin clips are attached to a linear body such as a wire at required intervals, which includes a plurality of clip forming molds arranged in parallel at intervals, and the molds. The wire guide member protruding from the lower mold parting surface of the mold and the length of the wire arranged over the lower mold can be partially changed and moved between the lower molds using the guide member. 1. A wire clip forming device comprising: a wire pull-out member provided in the wire clip forming device;