Bevel gear injection mold and bevel gear

Abstract

The invention relates to the technical field of molds, and provides a bevel gear injection mold and a bevel gear. Through the arrangement of a mold core, an ejector pin, a push rod, a first mold plateand a second mold plate, during demolding, after the first mold plate is lifted, a push plate is pushed upwards firstly, and meanwhile, a forming plate and a product are pushed away from a bearing piece together; and therefore, a bevel gear product is degummed from a second concave cavity of the bearing piece and is separated from an axis rod of the push rod, and the second concave cavity is prevented from hindering the rotation of the bevel gear product when the bevel gear is disengaged. The product is ejected twice through a sleeve of the push rod, so that the tooth removal of the bevel gear product is realized, in the process, due to the fact that the bottom of the product is degummed, rotation is not affected during tooth disengaging, when the product is subjected to tooth disengaging, the product can rotate relative to the forming plate, the bevel gear rotates along an inner gear ring of the forming plate to be subjected to tooth disengaging, and product demolding is achieved.

Description

technical field [0001] The invention relates to the technical field of moulds, in particular to a helical gear injection mold and helical gears. Background technique [0002] At present, in the process of forming helical gears with injection molds, it is difficult to remove the helical gears from the mold. The structure of the mold may easily affect the rotation of the helical gears during demoulding, resulting in unsmooth demoulding and even damage to the helical gears. Contents of the invention [0003] The present invention aims to solve one of the technical problems mentioned above. According to an embodiment of the present invention, there is provided a helical gear injection mold, which can be used to mold injection molded parts with an internal gear ring, and the mold processing is less difficult, less time-consuming and helps to improve the precision of molded products. [0004] The embodiment of the present invention also provides a helical gear injection-molded ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of forming helical gears with injection molds, it is difficult to demould the helical gears. The structure of the mold may easily affect the rotation of the helical gears during demoulding, resulting in unsmooth demoulding and even damage to the helical gears.

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