Thread demolding mechanism for injection molding machine

Abstract

The invention belongs to the technical field of injection molding and provides a thread demolding mechanism for an injection molding machine. The thread demolding mechanism sequentially comprises a movable die, a forming die and a threaded core from top to bottom. An injection molding cavity is formed after a groove in the movable die and the top face of the forming die are combined, and the upper end of the threaded core penetrates the forming die and is arranged in the injection molding cavity. The forming die is sleeved with a push plate capable of driving the forming die to synchronously move, and the push plate is connected with a die sleeve below the push plate through a return spring. The push plate is provided with a rotating mechanism driving the threaded core to rotate, and a rotating handle controlling the rotating mechanism. According to the scheme, the structure is simple, the threaded core does not need to be manually and directly screwed, labor is saved, and meanwhile working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of injection molding. Background technique [0002] Injection mold is a tool for producing plastic products, and it is also a tool for giving plastic products complete structure and precise dimensions. Its use method is to inject the heated and melted material into the cavity of the injection mold under high pressure, and after cooling and solidifying, a molded product is obtained. When the existing injection molded parts need to manufacture screw holes, it is necessary to put a threaded core in the injection mold, and after the injection molding is completed, the threaded injection molded part will come out. [0003] However, since the threaded injection molded part and the threaded core are in a threaded state, after the mold is opened, the injection molded part needs to be removed from the injection cavity by rotating the threaded core along its thread. The current threaded core stripping method The mai...

AI Technical Summary

Problems solved by technology

[0003] However, since the threaded injection molded part and the threaded core are in a threaded state, after the mold is opened, the injection molded part needs to be removed from the injection cavity by rotating the threaded core along its thread. The current threaded core stripping method The main method is to manually twist the threaded core so that the threaded core withdraws from the threaded part of the injection molded part. This method of thread removal takes a long time and the work efficiency is low.

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