Double-tapered-wedge mechanism for achieving negative angle forming in progressive die

Abstract

The invention discloses a double-tapered-wedge mechanism for achieving negative angle forming in a progressive die, and relates to the technical field of dies. The double-tapered-wedge mechanism comprises an upper die base, a lower die base, a pressing die assembly and a negative angle forming assembly. The upper die base and the lower die base are arranged vertically, and an elastically movable upper die plate is arranged on the lower end face of the upper die base. The pressing die assembly comprises a lower die unit arranged on the lower die base and an upper pressing material arranged on the upper die plate, the upper pressing material and the lower die unit cooperate with each other to press a product, the lower die unit comprises a lower die plate and a forming female die, and the upper die base is provided with a first wedge-shaped driving block for driving the forming female die to move towards the lower die plate to be closed. The negative angle forming assembly comprises an upper forming male die installed on the upper die plate and a second wedge-shaped driving block installed on the upper die base, and after the upper pressing material closes the lower die unit, the upper die base drives the second wedge-shaped driving block to move downwards so that the upper forming male die can be closed towards the lower die unit. Negative angle forming in the continuous die can be achieved, and interference is avoided when a material belt floats upwards.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to a double wedge mechanism for realizing negative angle forming in a continuous mold Background technique [0002] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art. At present, in the continuous mold, the sides of some products of auto parts need to be formed with negative angles. However, when the sides of the products are formed with negative angles , After the negative angle is formed, it will interfere with the forming die, and there will be a problem that the material belt cannot float up. Contents of the invention [0003] The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. For this reason, the embodiment of the present invention provides a double wedge mechanism for realizing negative-angle forming in the continuo...

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Problems solved by technology

[0002] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art. At present, in the continuous mold, the sides of some products of auto parts need to be formed with negative angles. However, when the sides of the products are formed with negative angles , after the negative angle is formed, it will interfere with the forming die, and there will be a problem that the material belt cannot float up

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