JP2852375B2 - Wire rod molding method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire material molding method for insert molding a wire material constituting a part of an electric component.

2. Description of the Related Art Conventionally, as for a plate material constituting a part of an electric component, a plurality of plate materials are continuously subjected to insert molding while being connected to a hoop terminal. On the other hand, since a wire cannot be made into a hoop shape, when insert-molding a wire, a plurality of wires cut in advance to a predetermined length must be aligned in the mold one by one. Since such operations involve time-consuming operations, the manufacturing efficiency is low and this is one of the causes of an increase in cost.

Therefore, an object of the present invention is to provide a wire molding method which is excellent in manufacturing efficiency without requiring a complicated operation.

Means and Solution for Solving the Problems In order to solve the above problems, a wire material molding method according to the present invention provides a wire material in a state where the wire material is cut to a predetermined length in a wire material press-fit holding portion provided on a carrier provided on a carrier. Are aligned, press-fitted and held, and the wire in the held state is insert-molded.

The plurality of wires are press-fitted and held in alignment with the carrier, are collectively set in a mold, and are insert-molded. After the completion of the molding step, the plurality of wires are sent to the next step while being held by the carrier.

Hereinafter, one embodiment of a wire molding method according to the present invention will be described with reference to the accompanying drawings. In this embodiment, a case will be described in which a shaft pin constituting a high-frequency coaxial connector is insert-molded.

FIG. 1 shows a partial perspective view of the carrier 1. Carrier 1
Is a long metal plate having a curled portion 2 cut and raised on one side at a predetermined interval and bent, and a feed hole 3 on the other side.

As shown in FIG. 2, the carrier 1 is conveyed at a predetermined feed pitch in the direction of arrow a in the figure, and one end of the shaft pin 6 is pressed into the curled portion 2 of the carrier 1. At a substantially central portion of the shaft pin 6, a wire 7 for preventing the detachment of the insulating member 9 described later is wound. Thus, the carrier 1 into which the shaft pin 6 is press-fitted is set in a mold (not shown), and a disk-shaped insulating member 9 that completely covers the wire 7 of the shaft pin 6 is formed (see FIG. 3). At this time, if the carrier 1 is in a relatively short state, that is, the carrier 1 is formed in a strip shape in which several tens of the shaft pins 6 are held, the strip-shaped carrier is set in a mold for each carrier. Insert molding is performed, and insert molding of several tens of the shaft pins 6 can be performed simultaneously at a time. If the carrier 1 is made endless and the shaft pins 6 are sequentially set in a mold and insert-molded, insert molding of the shaft pins 6 can be performed continuously.

Even after the molding process, the shaft pins 6 are sent to the next process while being held by the carrier 1, and are efficiently assembled to the connector body.

In the wire molding method described above, the plurality of shaft pins 6
Are held in the carrier 1 and the batch or simultaneous or continuous insert molding process is performed, so that it is not necessary to set each piece in the mold, and the cycle time of the mold can be greatly reduced. Further, the used carrier 1 can be reused.

Note that the wire rod molding method according to the present invention is not limited to the above-described embodiment, but can be variously modified within the scope of the gist. In particular, the method for press-fitting and holding the wire may be, for example, the method shown in FIG. 4 or FIG. In the method shown in FIG. 4, a part of the carrier 20 is cut and raised to form a pair of cracked claw portions 21 and 21, and the wire 22 is pushed into the pair of claws 21 and 21 from above to transfer the wire 22 to the carrier. 20 to hold. In the method shown in FIG. 5, a pair of small holes 26, 26 are formed in the carrier 25, and the pair of holes 26, 26 are formed.
With the end of the wire 27 placed on the top 26, the end is crushed and a part of the end is pushed into the hole 26 to hold the wire 27 in the carrier 25.

Effect of the Invention As is apparent from the above description, according to the present invention, a plurality of wires are press-fitted and held in a state aligned with the carrier, and the wires are insert-molded in this state. There is no need to arrange in the mold, and the cycle time of the mold can be greatly reduced. Further, even after the completion of the molding step, the wire can be sent to the next step while being held by the carrier, so that equipment costs and assembly costs can be reduced.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a carrier used in the present invention, and FIG. 2 and FIG. 3 are perspective views showing an embodiment of a wire molding method according to the present invention in the order of steps. 4 and 5 are perspective views showing a modification of the method for holding a wire. 1 ... Carrier, 2 ... Curl, 6 ... Shaft pin, 9 ...
... Insulating member, 20 ... Carrier, 21 ... Claw, 22 ... Wire, 25 ... Carrier, 26 ... Small hole, 27 ... Wire.

Claims (1)

(57) [Claims] 1. A wire rod in which a wire cut in a predetermined length in advance is aligned and press-fitted and held in a wire press-fit holding portion provided on a carrier, and the wire in the held state is insert-molded. Molding method.