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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At the same time, introduce the principle of side core-pulling mechanism of gear and rack injection mold, and design gist of a rack.

掌握长抽距或斜抽芯塑件的结构工艺分析及抽芯距、抽芯力的计算，齿轮、齿条注射模侧向抽芯机构的原理和齿轮、齿条设计要点尤其关键。

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According to the gear box structure characteristics, introduced the gear box injection mold structure.

根据齿轮周转箱的结构特点，介绍了齿轮周转箱注射模结构。

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The game found an extra gear after the break and the injection of United substitute Cadamarteri's pace won a penalty on the hour.

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With technologies like direct injection, cylinder on demand and seven-speed gear boxes, "you don't have to sacrifice, " says Mr. Hoch.

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