中国塑料 ›› 2019, Vol. 33 ›› Issue (9): 72-76,99.DOI: 10.19491/j.issn.1001-9278.2019.09.013

• 加工与应用 • 上一篇    下一篇

基于Moldflow的香皂盒套件注塑流动平衡优化

李雅   

  1. 常熟理工学院
  • 收稿日期:2019-03-22 修回日期:2019-05-07 出版日期:2019-09-26 发布日期:2019-10-25

Optimization of Balanced Flow for Injection Molding of Soap Box Based on Moldflow

LI Ya   

  1. Changshu Institute of Technology
  • Received:2019-03-22 Revised:2019-05-07 Online:2019-09-26 Published:2019-10-25

摘要: 针对香皂盒套件注塑模组合型腔熔体流动不平衡的问题,利用Moldflow软件进行注塑数值模拟。从充填时间,速度/压力(V/P)切换点压力,注射位置处压力三方面对初始方案进行分析,确定浇注系统优化指标,采用流道平衡分析自动优化方案的流道尺寸进行优化设计。结果表明,优化后的浇注系统,型腔间的充填时间的不平衡率低于5 %,压力不平衡值小于5 MPa,注射位置处压力曲线能够平稳上升,有效改善了熔体流动不平衡。

关键词: 注塑, 数值模拟, 流动平衡, 优化设计, Moldflow软件

Abstract: To solve the problems of imbalance melt flow in the injection mold combination cavity of the soap box, the Moldflow software was used to perform the numerical simulation for the injection molding process. The initial plan was analyzed from three aspects including filling time, the pressure of velocity/pressure conversion points and the pressure at the injection position to determine the optimization index of the gating system. The size of the runner was optimized by the automatic optimization scheme of flow balance analysis. The results indicated that the unbalance rate of filling time between cavities and pressure unbalance value were less than 5 % and 5 MPa, respectively, after the gating system was optimized. Moreover, the pressure curve at the injection position rose steadily, and the melt flow imbalance were also improved effectively.

Key words: injection molding; numerical simulation; flow balance, optimization design; Moldflow software

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