JPH0517937U - Metal foil punching device - Google Patents

Abstract

(57) [Summary] [Purpose] To easily form a cushioning material between cutting edges for punching metal foil. [Structure] An elastic body such as silicon rubber is poured as a cushioning agent 13 between the cutting blades 12 of the large mold 11 to solidify.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a metal foil punching device for punching a metal foil used for, for example, a flat cable.

[0002]

[Prior Art]

 Conventionally, in order to punch out a metal foil, which is a conductor of a flat cable or the like, into a predetermined shape, a so-called big type in which a cutting edge is embedded in plywood is used. FIG. 4 is a perspective view of the big mold 1, showing a state in which a plurality of cutting blades 2 are stretched around in a predetermined shape.

FIG. 5 is a cross-sectional view showing a state in which the metal foil 3 made of a copper foil, an aluminum foil or the like is pressed against the metal mold 1 to cut the metal foil 3. In addition, 4 is a carrier sheet for holding the metal foil. The cut metal foil 3 often bends between the cutting blades 2 as shown in the drawing, and in order to prevent this bending, a cushioning material is often provided between the cutting blades 2.

Usually, a sponge-like material is cut and attached to the cushioning material, or a rubber sheet or the like is pressed by the cutting blade 2 and cut and embedded.

[0005]

[Problems to be solved by the device]

 However, it is extremely troublesome to cut the cushioning material into an appropriate size that fits the gap between the cutting blades 2 and attach the cushioning material between the cutting blades 2. Further, even when a rubber sheet is used, it is necessary to place the sheet on the entire Vic mold 1, press-cut it, and then embed it, which is extremely impossible.

An object of the present invention is to solve the above-mentioned drawbacks and to provide a metal foil punching device capable of efficiently forming a cushioning material between cutting blades by omitting troublesome work.

[0007]

[Means for Solving the Problems]

 The metal foil punching device according to the present invention for achieving the above-mentioned object has a plurality of thin-walled cutting blades stretched around the plate body along the shape of the metal foil to be punched, and the cutting blades are placed between these cutting blades rather than the cutting blades. It is characterized by pouring a liquid elastic body to a low or almost the same height and solidifying it.

[0008]

[Action]

 In the metal foil punching device having the above-described configuration, as a cushioning material when cutting the metal foil, a liquid elastic body is poured between the stretched cutting edges to solidify.

[0009]

【Example】

 The present invention will be described in detail with reference to the illustrated embodiment. FIG. 1 is a perspective view of the cutting die 11. A cutting blade 12 is stretched around the cutting die 11 in a predetermined shape to be punched, and a liquid elastic body such as silicone rubber is provided between and around the cutting blade 12. Etc. are poured and solidified as the buffer 13. As shown in the cross-sectional view of FIG. 2, this buffering agent 13 is slightly lower than the height of the cutting edge 12 or is about the same in height.

FIG. 3 is a cross-sectional view showing a state in which the metal foil 2 is cut by the V-shaped mold 11. The cushioning agent 13 is pushed into the inside of the cutting blade 12 by the thickness of the metal foil 2 to be cut, and the metal foil 2 is not bent by the elastic force of the buffering agent 13.

In the present embodiment, the buffering agent 13 is simply formed by pouring an elastic body such as silicon rubber between the cutting blades 12 to solidify it, and the work is extremely simple. Further, since the poured cushioning agent 13 conforms to the cross-sectional shape between the cutting blades 12 and adheres to the cutting blades 12, it not only prevents the metal foil 2 from being fitted or curved, but also causes burrs and distortions. It can also be prevented.

[0012]

[Effect of the device]

 As described above, the metal foil punching device according to the present invention does not require the work of cutting and pasting a sponge-like material as a conventional cushioning material and the work of pressing and embedding a rubber sheet etc. The production is extremely efficient as it only needs to be poured.

[Brief description of drawings]

FIG. 1 is a perspective view of a big type of an embodiment.

FIG. 2 is a cross-sectional view before cutting the metal foil.

FIG. 3 is a cross-sectional view after cutting the metal foil.

FIG. 4 is a perspective view of a conventional Viku type.

FIG. 5 is a cross-sectional view after cutting a metal foil of a conventional example.

[Explanation of symbols]

 3 Metal foil 11 Big type 12 Cutting edge 13 Buffer agent

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Juichi Nishiyama 1-8-1 Kotakecho, Nerima-ku, Tokyo Ryosei Denso Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A plurality of thin-walled cutting blades are stretched around a plate surface along the shape of a metal foil to be punched, and the liquid is formed between these cutting blades at a height slightly lower than or substantially equal to that of the cutting blades. A metal foil punching device characterized in that an elastic body is poured and solidified. 2. The metal foil punching device according to claim 1, wherein the elastic body is silicon rubber.