Self-ejection dustproof cover injection mold

Abstract

The invention provides a self-ejection dustproof cover injection mold which comprises a mold core assembly, a Haff block, an upper mold plate, a lower mold plate, an upper mold fixing plate and an ejection assembly. The mold core assembly comprises an upper mold core, a lower mold core and a moving middle mold core. The upper mold core is mounted on the upper mold plate. The lower mold core is mounted on the lower mold plate, and the moving middle mold core is arranged in the lower mold core. The Haff block arranged around the mold core assembly and matched with the mold core assembly is arranged on the periphery of the mold core assembly. A cavity is formed by the gap between the mold core assembly and the Haff block, and a glue injection hole communicating with the cavity is formed in the upper mold core. The ejection assembly comprises an ejection inner mold core, an ejector pin panel and an ejector pin bottom plate. The bottom end of the ejection inner mold core is connected with the ejector pin panel. The ejector pin panel is mounted on the ejector pin bottom plate. According to the self-ejection dustproof cover injection mold, automatic production can be achieved, the servicelife of the mold can be prolonged, and the product injection molding period can be shortened.

Description

technical field [0001] The invention relates to the technical field of dust cover moulds, in particular to an injection mold for a self-extruding dust cover. Background technique [0002] In the traditional design of the mold structure of injection dust cover, because of the large amount of undercuts of this type of dust cover, demoulding is very difficult. In order to solve the problem of product demoulding and processing, the industry generally uses manual assisted demoulding. The product has large deformation, and at the same time, the labor intensity of manual assisted operation is high and the cycle is long; the other method adopts the structure of the inner shrinkage mold core, which has a complex mold structure, and there are many movable parts in the inner parting, which is easy to produce flash. In the actual production process, the movable insert It is easy to damage the dust cover. At the same time, because the inner mold core is assembled by multiple inserts, eff...

AI Technical Summary

Problems solved by technology

[0002] When traditionally designing the mold structure for injection molding dust covers, because of the large amount of undercuts of such dust covers, it is very difficult to demould. In order to solve the problems of product demoulding and processing, the industry generally uses manual assisted demoulding. The product has large deformation, and at the same time, the labor intensity of manual assisted operation is high and the cycle is long; the other method adopts the structure of the inner shrinkage core. It is easy to damage the dust cover, and because the inner mold core is assembled by multiple inserts, effective cooling cannot be achieved, and the reliability of the mold is low

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