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。

youdao

Based on the pitch meshing theory of the worm drive, a new structure of the cylinder worm drive-the double pitch point and double side-placed worm gear drive is proposed in this paper.

以蜗杆啮合节点理论为基础提出一种圆柱蜗杆传动的新结构—双节点侧置双蜗轮传动；

youdao