Progressive die of concave bayonet bloop and production method of concave bayonet bloop

Abstract

The invention discloses a progressive die of a concave bayonet bloop and a production method of the concave bayonet bloop. The progressive die of the concave bayonet bloop comprises an upper die and a lower die matched with the upper die, and a bloop material strap goes forward between the upper die and the lower die; in the advancing direction of the bloop material strap, the lower die is sequentially provided with a lower die punching insert core used for punching the bloop material strap, a lower die pre-bending insert core used for concave bayonet half forming, and a lower die blocking foot bending insert core used for blocking foot forming; the upper die is provided with a punching plunger chip matched with the lower die punching insert core, a pre-bending insert core matched with the lower die pre-bending insert core, and a blocking foot bending plunger chip matched with the lower die blocking foot bending insert core. The progressive die is high in production automation degree, productivity and quality of products are greatly promoted, manual operation safety is high, labor intensity is also greatly weakened, manpower and drilling crews are saved, production management is convenient and fast, and customer order response ability is high.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to a continuous mold for a concave bayonet sound-absorbing sheet and a production method for the concave bayonet sound-absorbing sheet. Background technique [0002] Such as Figures 1 to 3 The concave bayonet silencer shown is a kind of silencer installed on the steel back of the automobile brake pad, generally made of stainless steel for automobiles, with a thickness of 0.4mm. The characteristic of the concave bayonet silencer is that the three clips that are interference fit with the steel back are concave. The current production method of the clips is to use a single die to produce and form. The technological process of the concave bayonet silencer is: blanking → punching → forming the concave bayonet. Especially in the process of forming the concave bayonet, after the part is formed, it is put on the punch, and it must be manually demoulded from the direction parallel to the be...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to disclose the continuous mold of the concave bayonet sound-absorbing sheet and the production method of the concave bayonet sound-absorbing sheet, which solves the problems of low process efficiency and dangerous operation of the existing concave bayonet sound-absorbing sheet

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