Injection molding die finishing outer side arc core drawing through swinging block mechanism and application method of injection molding die

Abstract

The invention relates to an injection molding die finishing outer side arc core drawing through a swinging block mechanism and an application method of the injection molding die. The injection molding die comprises a movable die plate arranged on a die frame, a fixed die plate and a fixed die fixing plate arranged on the fixed die plate. The fixed die fixing plate is provided with a fixed die core stretching into the fixed die plate. The movable die plate is provided with a movable die core stretching into the fixed die plate, and the movable die core is matched with the fixed die plate and the fixed die core so that a workpiece cavity can be formed. A swinging block is arranged at the lower portion of the fixed die plate, wherein the inner side end of the swinging block stretches into the workpiece cavity, and accordingly an arc side concave part is formed in the outer side face of the workpiece. The outer side end portion of the swinging block is hinged to the fixed die plate. The movable die plate is provided with a drive mechanism, the drive mechanism is connected with the inner side end portion of the swinging block, and by means of the drive mechanism, the inner side end of the swinging block is made to swing upwards and disengage from a workpiece so that core drawing can be finished. The injection molding die is compact in structure, a push rod is utilized for pushing the swinging block to swing, and the problem about arc side concave part demoulding is effectively solved.

Description

technical field [0001] The invention relates to an injection mold which utilizes a pendulum mechanism to complete outer arc core pulling and its application method. Background technique [0002] In injection molding production, there are often a large number of demoulding parts with arc undercuts on the outside. The traditional core-pulling method for such products with arc undercuts is to set up a side core-pulling mechanism. The problem caused by this is that the mold manufacturing is complicated and costly. increase, and it is difficult to guarantee product quality. For this reason, an injection mold that utilizes a pendulum mechanism to complete outer arc core pulling is needed. Contents of the invention [0003] The object of the present invention is to provide an injection mold for outer circular arc core-pulling by using a pendulum mechanism and its use method, which not only has a compact structure, but also uses a push rod to push the pendulum to swing, effective...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an injection mold that utilizes the pendulum block mechanism to complete the outer arc core-pulling and its use method, which not only has a compact structure, but also uses the push rod to push the pendulum block to swing, effectively solving the problem of arc side concave mold release

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