基于产品模型重构的注塑模型腔尺寸修改方法研究  

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

作　　者：季正伟[1] 张益华[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《中国塑料》2009年第1期72-76,共5页China Plastics

摘　　要：运用现有的CAD软件设计注塑模时对制品成型后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型腔与塑件之间的配合关系,精确灵活地控制注塑件的不均匀收缩,从而提高了注塑件尺寸精度,达到了减少修模的目的。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.

关 键 词：产品模型重构 注射成型 模拟仿真 型腔尺寸 

分 类 号：TQ320.662[化学工程—合成树脂塑料工业]