Molding method of 3D glasses plastic parts with embedded fpc

Abstract

The invention discloses a forming method of a 3D (three-dimensional) glasses plastic part embedded with an FPC (Flexible Printed Circuit). The forming method comprises the steps of providing a mould, wherein the mould at least comprises a rear mould, a first front mould and a second front mould; forming a first assembly by injection molding of the rear mould and the first front mould, wherein a groove is formed in the top surface of the first assembly; separating the rear mould from the first front mould to retain the first assembly on the rear mould, and assembling the FPC in the groove of the first assembly; compounding the second front mould and the rear mould for injection molding, and forming a second assembly on the top surface of the first assembly to integrate the first assembly and the second assembly so as to form the 3D glasses plastic part. According to the forming method provided by the invention, except for the top surface, other parts of the FPC are coated by the first assembly, and an impact force to the FPC is minimum in the process of forming the second assembly on the top surface of the first assembly, so that the production of the integrally molded 3D glasses plastic part embedded with the FPC by means of injection molding is realized, and the mechanical strength of the 3D glasses plastic part is ensured on the premise of maintaining good performance of the FPC.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to a molding method of a 3D glasses plastic part embedded with an FPC. Background technique [0002] The legs of general 3D glasses are wrapped with FPC (Flexible Printed Circuit). This kind of 3D glasses product requires the FPC to be positioned precisely and not exposed, and the FPC will not be melted or broken by high-temperature and high-pressure plastics to maintain access. And can pass 50,000 times of bending test. [0003] Because the flexible FPC wire is fragile, soft and unsupported, it is difficult to achieve one-time injection molding of the 3D glasses legs embedded with FPC by the traditional one-time injection molding method. Contents of the invention [0004] The main purpose of the present invention is to provide a molding method for 3D glasses plastic parts with embedded FPC, realize the integral molding of 3D glasses plastic parts with embedded FPC thro...

AI Technical Summary

Problems solved by technology

[0003] Because the flexible FPC wire is fragile, soft and unsupported, it is difficult to realize the one-time injection molding of the 3D glasses legs embedded with FPC by the traditional one-time injection molding method

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