JPS5818972Y2 - press mold - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a press die mainly used for press working of metal plates.

Conventionally, press molds of this type have generally been made entirely of cast iron or other metals, and such molds are relatively expensive, so a large number of types have to be prepared to accommodate changes in pressing operations. In this case, the overall cost is quite high and it cannot be avoided that it is uneconomical.

The purpose of the present invention is to obtain a press die free of such inconveniences.The purpose of the present invention is to provide a cylindrical outer 1 made of cast iron or other metal, and an inner 3 of a metal or synthetic resin type having a molding tube 2 on the front surface. The inner 3 and the seat plate 5 at the bottom of the outer 1 are fitted with a backing material 4 made of granules or other materials.

Fig. 1 shows an example of a press machine using the press mold of the present invention, in which a movable table that is operated by hydraulic pressure or other means to move up and down is installed above a fixed table a on the lower side. At the same time, a guide rod C and a guide bush d are used to guide the vertical movement.
It is equipped with male-shaped and female-shaped press dies on the upper surface of the fixed base a and the lower surface of the movable base.

This proposal relates to this press mold, and each press mold is composed of an outer 1, an inner 2, and a backing material 4 as described above. A seat plate 5 is detachably provided, and the seat plate 5 can be attached to the counters a, l).

The backing material 4 is generally made of granular materials, in which case compression-resistant metal grains, metal powder, etc. are used, but as shown in the second figure, a large number of metal or other rod-like materials may be arranged in parallel. Conceivable.

To explain its operation, the upper and lower press dies can work together to apply press work to metal plates and other materials.This point is not particularly different from conventional ones, but the press work will be changed next. In this case, the press mold is once removed from the press machine, the seat plate 5 is removed from the outer 1 and the backing material 4 is removed, and the inner 3 is then removed and replaced with an inner 3 having a separate molding cylinder 2. Next, the backing material 4 is filled again and the seat plate 5 is attached to complete the assembly, which can then be attached to the press machine.

In this way, according to the present invention, the inner 3 having the molded tube 2 on the front side is fitted into the cylindrical outer 1 so as to be freely inserted and removed, and a backing material is provided between the inner 3 and the seat plate 5 at the bottom of the outer 1. By removing the inner 3 and replacing it with a different molded cylinder 2, it can be used for different tasks. Since the bag material 4 is filled between the inner 3 and the outer 1, the outer 1 and the inner 3 can be made lighter, and there is no waste of material, resulting in lower costs.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view of an example of a press using the press die of the present invention, and FIG. 2 is a cutaway side view of a modified example of the press die of the present invention. 1... Outer, 2... Molding surface, 3...
...Inner, 4...Back material.

Claims (1)

[Scope of utility model registration request] A metal or synthetic resin type inner 3 having a molded cylinder 2 on the front is fitted into a cylindrical outer 1 made of cast iron or other metal, and a seat plate 5 at the bottom of the inner 3 and the outer 1 is inserted and removed. A press mold in which a backing material 4 made of granules and other materials is filled between the two.