摘   要
 
当今塑料成型是塑料加工中最位普遍的方法，作为塑料成型加工的工具之一的塑料注射模具，在质量、精度、制造周期，以及注射过程中的生产效率等很多方面影响着产品的质量、产量、成本。产品的更新换代对模具有了更多的要求，同时也意味着对注塑模具设计水平有了更高标准。
课题的任务是活动圈注塑模具设计。根据课题的要求，使用POM材料进行注塑。本文详细的介绍了注塑模具设计的流程：根据材料特性、工件结构特点进行工艺分析，最终确定选取注射机。选定分型面，并针对工件特点对型腔数量以及型腔排列进行了规划。计算成型零件后，再根据型腔分布等因素选取模架。因为塑件结构形状和所用塑件的缘故，不能采用普通脱模机构，型零件的采用利用成脱模机构,通过推杆推出成型滑块。计算并设计了浇注系统，采用了侧浇口。计算冷却系统，布置冷流道。最后利用Creo PTC4.0软件建模，三维转二维使用AutoCAD绘制图纸。
 
关键词：活动圈  POM  成型零件脱模

ABSTRACT

 
Today's plastic molding is the most common method of plastic processing. As one of the plastic molding tools, plastic injection mold, in terms of quality, precision, manufacturing cycle, as well as the production process of injection and many other aspects of the impact of product quality, Production and cost. Product replacement on the mold with more requirements, but also means that the level of injection mold design has a higher standard.
The task of the task is to design the injection mold. According to the requirements of the subject, the use of POM materials for injection molding. This article describes in detail the process of injection mold design: According to the material characteristics, the characteristics of the workpiece structure analysis, and ultimately determine the selection of injection machine. Select the parting surface, and for the workpiece characteristics of the cavity number and cavity arrangement were planned. Calculate the molding parts, and then according to the cavity distribution and other factors selected mold. Because the shape of plastic parts and the use of plastic parts of the reason, can not use ordinary stripping mechanism, the use of parts used as a stripping mechanism, through the putter launch slider. Calculated and designed the gating system, using the side gate. Calculate the cooling system and arrange the cold runner. Finally, the use of Creo PTC4.0 software modeling, three-dimensional two-dimensional use of AutoCAD drawing drawings.
Key words：Activity circle  POM  Molding part stripping
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