Injection mold for forming double-color product

Abstract

The invention discloses an injection mold for a forming double-color product. The injection mold comprises a bearing base plate, a first forming mold is installed in the middle of the end face of one side of the bearing base plate, a mold changing assembly is installed on the outer side of the bearing base plate, the outer side of the first forming mold is sleeved with a protection shell, and a sliding shell is installed on the end face of one side of the protection shell; a forming cavity is formed between the protection shell and the first forming mold, a second sliding forming mold is slidably connected to the inner side of the sliding shell, a top sliding barrel is installed at the top of a sliding groove, a sliding fixed mold is slidably connected to the inner side of the top sliding barrel. According to the injection mold for the forming double-color product, the second sliding forming mold stays at different positions, so that mold opening is not needed; therefore, the temperature in the mold cannot be reduced, two materials can be guaranteed to be rapidly fused and bonded when a second material is injected, the success rate of injection molding is guaranteed, the extra time generated by replacing the mold can be shortened, the injection molding quality is improved, meanwhile, the working efficiency is improved, and two purposes are achieved.

Description

technical field [0001] The invention relates to the technical field of mold injection molding, in particular to an injection mold for forming two-color products. Background technique [0002] Two-color mold means that two plastic materials are injected on the same injection molding machine and molded twice, but the product is only molded once. Generally, this molding process is also called double-material injection molding. It is usually completed by a set of molds and requires special The advanced two-color injection molding machine can perform one-time injection molding of different materials, which improves the molding speed of complex molds; [0003] However, in the existing two-color injection mold, after one material is injected, the mold needs to be opened and half of the mold needs to be replaced, and then the second material is injected to make the first material cool and form rapidly or even shrink when it is cold, resulting in the second It is difficult for the t...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an injection mold for forming two-color products, which can effectively solve the problem that the existing two-color injection mold proposed in the above background technology needs to open the mold and replace half of the mold after the injection molding of one material is completed, and then in the first injection molding process. Two kinds of materials, so that the first material cools down quickly and even shrinks when it is cold, which makes it difficult for the second material to be completely bonded with the first injection material, resulting in the failure of the overall injection molding

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