Die with undercut exit structure with bore sidewall

Abstract

The invention discloses a mold provided with a disengagement structure for an undercut on the side wall of an inner hole. The mold is used for forming a product of which the side wall of the inner hole is provided with the undercut. The mold comprises an upper fixing plate, a female mold plate, a male mold plate and a male mold supporting plate which are arranged in sequence. The mold further comprises a sliding insert, a first insert, a second insert, a third insert and a shifting lever, wherein one end of the sliding insert is provided with a forming part used for forming the undercut, and the sliding insert is provided with a sliding through hole; the first insert is used for forming the inner hole and internally provided with a first through hole, the sliding insert is arranged in the first insert, and the forming part of the sliding insert penetrates out from one side of the first insert; the second insert is sleeved with the first insert, abuts against the lower portion of the sliding insert, and is internally provided with a second through hole; and the third insert is arranged under the second insert and internally provided with a third through hole. The effect that the inner hole of a formed product is free of broken lines, and disengagement of the undercut arranged on the side wall of the inner hole is realized can be achieved.

Description

[0001] 【Technical field】 [0002] The invention relates to a mold structure, in particular to a mold with an undercut exit structure on the side wall of an inner hole. [0003] 【Background technique】 [0004] see figure 1 , figure 1 It is a schematic diagram of the structure of a product. As shown in the figure, the side wall of the inner hole 101 of the product 100 (such as a shaft product) has an undercut 102 . [0005] Since the inner hole 101 of the product 100 cannot have a folding line after molding, and the undercut 102 must be withdrawn, the existing mold cannot be used to achieve this purpose. [0006] In view of this, it is necessary to develop a mold with an undercut exit structure on the side wall of the inner hole to solve the above problems. [0007] 【Content of invention】 [0008] Therefore, the object of the present invention is to provide a mold with an undercut exit structure on the side wall of the inner hole, which can satisfy the requirement that the i...

AI Technical Summary

Problems solved by technology

[0005] Since the inner hole 101 of the product 100 cannot have a folding line after molding, and the undercut 102 must also be withdrawn, so the existing mold cannot achieve this purpose.

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