壳体注塑CAE与热流道模具设计

Injection molding CAE and hot runner mold design of a shell part

以某壳体零件为例,在详细分析壳体塑件结构、壁厚、成型材料性能和塑件壁厚的基础上,运用AMI 2016对其浇口位置进行了仿真分析。在综合考虑最佳浇口位置、塑件结构的基础上,确定了本模具采用热流道点浇口浇注系统的方案;在对塑料成型工艺的分析中,对影响产品质量的填充时间等要素进行了详细分析,分析出对产品结构及质量可能存在的潜在问题及解决方法。基于模流分析结果,运用UG软件对型腔及型芯结构、内抽芯机构、顶出机构、侧向滑块机构、复位机构、冷却系统和模具其他配套辅助机构进行了分析设计,完成了壳体塑件的热流道模具设计。经生产验证,该模具结构合理,产品质量满足设计要求。

Taking a certain shell part as an example, based on the detailed analysis of the shell plastic part structure, molding material property and plastic part wall thickness, the gate position was analyzed by simulation using AMI 2016. On the basis of considering the best gate position and the structure of plastic parts, the scheme of adopting hot runner point gate gating system is determined. In the analysis of plastic forming process, the factors, such as filling time that affect the product quality are analyzed in detail, and the potential problems and solutions to the product structure and quality are analyzed. Based on the results of mold flow analysis, the cavity and core structure, inner core pulling mechanism, ejection mechanism, lateral slider mechanism, reset mechanism, cooling system and other auxiliary mechanisms of the mold were analyzed and designed by using UG software. The hot runner mold design of the shell plastic parts was completed. Through production verification, the die structure is reasonable and the product quality meets the design requirements.