Lens seat forming mould

Abstract

The invention provides a lens seat forming mould which comprises a first template and a second template. The first template and the second template are matched with each other, the first template is provided with a first cavity, the second template is provided with a second cavity, the first cavity is matched with the second cavity to form a lens seat through injection molding, the second cavity is provided with a main forming cavity and an auxiliary forming cavity which are communicated with each other, the second template is provided with an air leakage cavity which is communicated with theauxiliary forming cavity, the air leakage cavity penetrates through the second template, and an embedding block is contained in the air leakage cavity. As a gap is arranged between the embedding block and the inner wall of the air leakage cavity, gas in the auxiliary forming cavity can be discharged from the gap between the embedding block and the air leakage cavity in the injection molding process.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to the structural design of molds for forming mirror bases. Background technique [0002] With the development of camera technology, lens modules are widely used in camera devices for various purposes, and the combination of lens modules with various portable electronic devices such as mobile phones and computers is favored by many consumers. [0003] A lens module generally includes a lens, a lens mount, a filter, an image sensor, and the like. Among them, components such as lenses and mirror holders are usually molded by injection molding. For the manufacturing method of the mold, please refer to the paper "Knowledge-based mold design for injectionmolding processing" published by Tseng et al. at the 1990 IEEE International Symposium on Intelligent Control (1990 IEEE International Symposium on Intelligent Control). [0004] In the prior art, the mirror base is generally formed by ...

AI Technical Summary

Problems solved by technology

However, since part of the structure of the mirror base also needs to form a protruding rod with a fine-fit positioning function, the protruding rod is generally located on the side of the mirror base to coordinate with the surrounding components. higher

During molding, the liquid plastic in the space corresponding to the protruding rod flows in last, so it is very easy to cause poor filling

If a vent hole is opened at the position communicating with the protruding rod, the matching accuracy of the small-sized protruding rod cannot be guaranteed.

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