基于UG的卷轴多腔注射模设计

Scroll Multi-cavity Injection Mould Design Based on UG

分析了绕线卷轴塑件的结构及成型工艺,针对卷轴的材料性能以及两端圆锥盘形、内部通孔、侧面凹槽等结构特点,并基于一模四腔对称分布的模具型腔结构,设计了二套侧向分型机构应用于同一模具上的方案,同时采用了以端面小凸台为顶出位以确保开合模行程有效的结构。此外还设计了S形对称浇注系统、组合式型腔、斜导柱式侧向分型抽芯机构、导向机构、复位及顶出机构、冷却与排气系统等。实践结果表明：该模具设计方案合理,结构紧凑,动作可靠。

The structure of scroll plastic part and its molding process were analyzed. According to the material property of the scroll and its structural features, such as two-end conical disk, internal throughhole and side groove, a scheme that located two side parting mechanisms in the same mould was put forward, based on the structure of mould cavity with the symmetrical distribution of four parts in one mould. Moreover, the structure that taking the small convex platform of the end face as the ejection was utilized to guarantee the effective opening-mould route. Furthermore, the S-shaped symmetrical gating system, combined cavities, angle pin side parting core-pulling mechanism, guiding mechanism, reset and ejection mechanism as well as the cooling and exhaust system were designed. The practical results show that the design of the mould is reasonable with the compact structure and reliable operation.