基于随形水路技术的带把双色水杯注塑模具设计

摘要

针对带把双色水杯的结构特点设计了带哈呋滑块结构的转盘式双色注塑模具.该模具采用热流道技术以消除流道凝料,实现生产自动化;型腔采用常规水路,型芯采用随形水路设计.借助模流分析技术对设计进行验证.模拟结果表明,该冷却方式能有效改善冷却效果、显著提高冷却效率和生产率;含随形水路的镶块与型芯基座采用机加工、成型部分采用金属粉末选择性激光烧结的三维(3D)打印技术成型;哈呋滑块的分型由压缩弹簧和T形扣来实现.%A two-color injection mold with a half-slider structure was designed for a two-color cup with a handle.The mold was mounted in an injection-molding machine with a turntable plate.The hot runner technology was adopted in the mold to remove the condensed material and realize the automotive production.The cooling system was constructed with conventional cooling channels in the cavities and a conformal cooling channel in the core.The simulation results indicated that the cooling configuration could effectively improve the cooling effect and cooling efficiency.The foundation supports of the insert and core with a conformal cooling channel were obtained from machining,and the top part was formed by selective laser sintering of metal powders via 3D printing technology.The parting of the sliders was driven by compression springs and T-shape buckles.This two-color injection mold exhibited a reasonable structure and reliable operation.