To make sure that a plastic part with helical gear and spur gear can be demoulded successfully, an injection mould is designed with double parting faces, point gate feeding and rotating demould.

前言： 为了保证一种既有斜齿轮又有直齿轮零件在注塑成形后能顺利脱模，给出了一套一模两位，点浇口进料， 旋转脱模，胶套式二次分型的双分型面注射模的设计。

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Three-plate mold; Pointed gate; Mold ranging parting; Restricted ejector of fixed-die; Mold structure.

三板模；点浇口；模外定距分型；定模限位顶出；模具结构。

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