Injection mold for plastic materials

Abstract

The invention relates to a mold, in particular to an injection mold for plastic materials, comprising an upper mold and a lower mold, an injection cavity is formed between the upper mold and the lower mold, and four pull rings are arranged on the top of the upper mold. The outer end of the upper mold is provided with a bracket, the inner side of the bracket is provided with a slideway, and the inner top of the bracket is provided with a power mechanism, and the upper mold moves up and down in the slideway through the power mechanism of the upper mold, and the lower mold There are four thimbles running through from top to bottom, the thimbles are located below the injection molding cavity, and buffer mechanisms are arranged on the thimbles. The invention avoids the inertial force generated by the movement of the lower mold during the mold opening process, prevents the plastic product from rigidly impacting the thimble when demoulding, makes the plastic product easy to demould without being damaged, improves production efficiency, and reduces production cost.

Description

technical field [0001] The invention relates to a mold, in particular to a plastic material injection mold. Background technique [0002] At present, injection mold is one of the most widely used moulds. Specifically, it refers to injecting heated and melted materials into the injection cavity at high pressure, and after cooling and solidifying, the finished product is obtained. During injection molding, the upper mold and the lower mold are closed to form a gating system and injection molding. However, during the mold opening process after the finished product is obtained, due to the influence of the inertial force generated by the movement of the lower mold, the thimble and the finished product will have a rigid impact during demoulding, resulting in damage to the finished product, resulting in a decrease in production efficiency and an increase in production cost. Contents of the invention [0003] The invention provides an injection mold for plastic materials, which ca...

AI Technical Summary

Problems solved by technology

[0002] At present, injection mold is one of the most widely used moulds. Specifically, it refers to injecting heated and melted materials into the injection cavity at high pressure, and after cooling and solidifying, the finished product is obtained. During injection molding, the upper mold and the lower mold are closed to form a gating system and injection molding. cavity, but in the process of mold opening after the finished product is obtained, due to the influence of the inertial force generated by the movement of the lower mold, the thimble and the finished product will have a rigid impact during demoulding, resulting in damage to the finished product, resulting in a decrease in production efficiency and an increase in production cost

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