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。
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.
通过对主体压铸件的结构工艺性分析，确定了模具结构设计方案，介绍了台阶分型面选择、立式缝隙浇口浇注系统设计、预复位推出机构设计和镶块镶拼结构设计。
Througn designing three axial slots in internal threaded portion and optimizing nib structure, a design was made on the injection mould with a two-step ejecting mechanism with non-rotating.
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