某医疗器械带金属嵌件塑件的注塑模具设计

以某医疗器械带金属嵌件塑件为研究对象,运用注塑成型技术进行注塑模具设计。针对产品的多规格及系列化特点,创新设计了浇注系统,可以根据需求成型不同规格产品。通过分析塑件的结构特征,设计了组合式型芯、哈夫机构、推出机构,实现嵌件刀片的精准定位,完成塑件成型和自动脱模。将立式注塑机工作台,由一个工位改造成两个工位,既能方便地取出成型塑件,又能安全地将嵌件装入型芯。模具经生产验证,产品质量稳定,外观和形状尺寸精度能满足客户要求。

Design of injection mold for plastic part with metal insert for medical device

The injection mold of plastic part with metal insert for medical device was designed via plastic molding.A novel gating system was designed to meet the requirements of the multi-specification and serialization of the product,which can be used to form different specifications according to the demands.The combined core,half mechanism,and ejection mechanism were designed by analyzing the characteristic structure of the plastic part,achieving the precise positioning of the insert blades,the plastic part molding and automatic demolding.The original one station of the vertical injection molding machine table was transformed into two stations,which can easily remove the molded plastic parts and can safely insert the inserts into the core.The mold has been verified in practice,and the product quality is stable,whose appearance and size accuracy meet requirements of customers.