Two-time demolding mechanism

Abstract

The invention discloses a two-time demolding mechanism, which is used for forming an elastic force arm (102). The elastic force arm (102) comprises an elastic force arm column body (103) and a buckle(104); the secondary demolding mechanism (100) comprises a sliding block (10) and a sliding block insert (13) connected with the sliding block (10) in a sliding fit manner; the sliding block (10) is provided with a shaping groove (101) for forming the column body (103); the sliding block insert (13) is provided with a buckle hole (131) for forming the buckle (104); and after the sliding block (10)is separated from the buckle (104), the sliding block insert (13) is separated from the buckle (104). The sliding block and the sliding block insert are matched together; the sliding block moves first to carry out first-time demolding, and after the sliding block moves for a certain distance, the sliding block insert and the sliding block synchronously move to carry out second-time demolding; anddue to the fact that the first-time demolding and the second-time demolding are not synchronous, the demolding mechanism is prevented from deforming the buckle, so that the yield is improved.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a secondary demoulding mechanism. Background technique [0002] In the production of existing injection molding products, when processing and producing products with simple structures and regular shapes, the production can generally be completed after only one demoulding process. However, when the structure of the molded products is more complicated, especially some products with buckle design, For example, for high-speed rail IGBT modules, the injection mold usually adopts forced demoulding technology, which leads to defects such as buckle deformation and buckle breakage, and a low yield rate. Contents of the invention [0003] The purpose of the present invention is to provide a secondary demoulding mechanism for the above-mentioned defects in the prior art, which can effectively avoid forced demoulding and ensure the yield rate. [0004] In order to achieve the purpose of the...

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Problems solved by technology

[0002] In the production of existing injection molding products, when processing and producing products with simple structures and regular shapes, the production can generally be completed after only one demoulding process. However, when the structure of the molded products is more complicated, especially some products with buckle design, Such as high-speed rail IGBT modules, injection molds usually use forced demoulding technology, resulting in defects such as buckle deformation and buckle breakage, resulting in low yield

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