注塑模抽芯机构可重构设计方法

Research on reconfigurable design methodology of injection molding core-pulling mechanism

注塑产品侧向成型单元特征的多样性带来了注塑模抽芯机构设计的复杂性和空间布局的难度.根据注塑模抽芯机构的原理相似性和可重构设计思想,提出注塑模抽芯机构的可重构设计方法.在分析抽芯机构运动规律的基础上,建立抽芯机构的功能模型,提出可重构的功能元模型和结构元模型;基于侧向成型方法知识库、抽芯机构可重构功能元和结构元模型库,建立注塑模抽芯机构的重构设计算法.注塑模抽芯机构可重构设计方法基于抽芯机构的可重构功能元和结构元族模型,实现了注塑模抽芯机构的设计资源重用,从设计方法的角度有效地解决了注塑模抽芯机构设计的知识管理问题;基于侧向成型方法知识库及侧向成型单元特征-抽芯单元映射算法实现了侧向型芯的集成抽芯,避免了抽芯机构的冗余;基于空间布局约束的功能元-结构元映射方法实现了抽芯机构的快速设计.通过工程实例验证了方法的有效性.

Variety of molding unit features of injection molding part bring complexity both to injection molding core-pulling mechanism design and spatial layout in injection molding design. Based on motion principle of this mechanism, its function model is established and the reconfigurable function unit as well as structure unit model is put forward. Based on repository of side direction molding method, function unit and structure unit of core-pulling mechanism, the reconfigurable design algorithm of this mechanism is set up. This algorithm is based on its function unit and structure unit model, and implements the reuse of its design resource. Besides, this algorithm effectively solves the knowledge management of this mechanism from the aspect of methodology. Based on repository of side direction molding method, map algorithm between side direction molding unit features and core-pulling unit, the integrated core-pulling of side direction cores is implemented, which avoids redundancy. On the basis of spatial layout restricted map method between function unit and structure unit, its fast design is realized. This method has been validated by an engineering example.