Injection molding piece die with inner thread and demoulding method thereof

Abstract

The invention discloses an injection molding piece die with an inner thread. The injection molding piece die comprises a first die body, a second die body and a shaft rod. The second die body is provided with a first through hole matched with the shaft rod. The shaft rod penetrates the first through hole in a rotating and sliding manner. One end of the shaft rod penetrates the second die body and is provided with a thread core. The thread core is combined with the first die body and the second die body to form an injection molding cavity of an injection molding piece. The first die body or the second die body is provided with an injection hole leading into the injection molding cavity. According to a demoulding method of the die, automatic core pulling of the thread core can be achieved. The first die body comprises a first outer plate, a male die block and a demoulding block. A separation structure is arranged between the first outer plate and the demoulding block. Automatic demoulding of the injection molding piece can be achieved through the structure, and the demoulding efficiency of the injection molding piece with the inner thread can be greatly improved.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to an injection mold with internal threads and a demoulding method thereof. Background technique [0002] The mold used for injection molding injection molded parts with internal threads has internal threads, and the cavity of the mold has a core that forms threads. The demoulding of the injection molded parts after injection molding of the existing mold is time-consuming and laborious, and the demoulding efficiency is low. It is extremely low, and automatic demoulding effect cannot be realized. These are also one of the factors affecting production efficiency, and the demoulding efficiency is also difficult to improve. For this problem, the inventor of the present case made improvements on the injection mold and this case came into being. Contents of the invention [0003] The purpose of the present invention is to provide a kind of injection mold with internal thread that can be a...

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Problems solved by technology

[0002] The mold used for injection molding injection molded parts with internal threads, because it has internal threads, has a core forming threads in the cavity of the mold. The demoulding of injection molded parts after injection molding of the existing mold is time-consuming and laborious, and the demoulding efficiency is low. It is extremely low, and the automatic demoulding effect cannot be realized. These are also one of the factors affecting production efficiency, and it is difficult to improve the demoulding efficiency. To solve this problem, the inventor of this case made improvements on the injection mold and this case came into being.

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