中国塑料 ›› 2009, Vol. 23 ›› Issue (01): 72-76 .DOI: 10.19491/j.issn.1001-9278.2009.01.016

• 加工与应用 • 上一篇    下一篇

基于产品模型重构的注塑模型腔尺寸修改方法研究

季正伟, 张益华   

  1. 南京航空航天大学机电学院,江苏 南京 210016
  • 收稿日期:2008-10-14 修回日期:1900-01-01 出版日期:2009-01-26 发布日期:2009-01-26

Study on Modification of Injection Mold Cavity Size Based on Reconstruction of Product Model

JI Zheng-wei,ZHANG Yi-hua   

  1. School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2008-10-14 Revised:1900-01-01 Online:2009-01-26 Published:2009-01-26
  • Contact: JI Zheng-wei

摘要: 运用现有的CAD软件设计注塑模时对注塑件变形的问题考虑不够全面,只能提供统一的收缩率,无法满足同一方向上收缩不均的复杂零件的设计要求。针对这一问题,以Moldflow软件为数据测量平台,对注塑件的变形进行模拟仿真,提出了一种基于模型重构的模具型腔尺寸修改方法。这种模型重构的方法能很好地改善了型腔与塑件之间的配合关系,精确灵活地控制塑件的不均匀收缩,从而提高了塑件尺寸精度,达到了减少修模的目的。

关键词: 注射成型, 模拟仿真, 型腔尺寸

Abstract: Current CAD software provides only a unified shrinkage and does not meet the design requirements of complex parts which have different shrinkage in same direction. Aiming at this problem, Moldflow was used as a data measurement platform to simulate the deformation of product. A method for modification of injection mold cavity size based on reconstruction of product model was proposed. Reconstruction of this model provided a way to improve the relationship between cavity and product, could control the non-uniform contraction of parts, thus to enhance the size precision and reduce the repair of model.

Key words: injection molding, analog simulation, cavity size