内藏式型针侧抽芯二次顶出脱模机构及其模具设计  

Design for Secondary Ejection Release Mechanism with Built-in Type Needle Side Core-pulling and It's Injection Mould

作　　者：徐生[1] 肖国华[1] 沈忠良[1] 卢星星[2] 韩立艳 

机构地区：[1]浙江工商职业技术学院,浙江宁波315012 [2]上海大众汽车有限公司,上海201805 [3]宁波阳超汽车模具有限公司,浙江宁波315012

出　　处：《工程塑料应用》2016年第3期79-83,共5页Engineering Plastics Application

基　　金：浙江省公益技术研究工业项目(2015C31065);浙江省教育厅科研项目(Y201533811)

摘　　要：介绍了一种电磁屏蔽保护盖产品内藏式型针侧抽芯机构及其模具,针对产品内部存在的侧孔较小且与外围不连通的特点,设计出一种特殊的抽芯滑杆通过T型槽带动型针侧抽芯的型针脱模机构,该脱模机构由内藏式型针抽芯组件、动力传动组件、内型芯动力推板组件、复位位置控制组件等组成;产品的脱模分两步完成,第一步由型针脱模机构完成产品内部侧孔的抽芯脱模,第二步由二次推板将产品从型芯上推出;该机构采用机动抽芯方式,结构简单,简化了模具结构且易加工,有效降低了生产成本,工作稳定可靠。A built-in type needle side core-pulling mechanism and mould of an electromagnetic protective cover product were introduced,according to the characteristic of side hole inside the product is small and do not connect with peripherals,a special type needle ejection release mechanism with type needle side core-pulling led by slide rod through T-slot was designed. The ejection re-lease mechanism consists of built-in type needle core-pulling components,power-train components,inner core power pushing plate components,reset position control components. The release of the product is divided into two steps:first step,the core-pulling and release of the side hole inside the product are completed by the type needle ejection release mechanism,second step,the product is pushed out from the core by a secondary push plate. The ejection release mechanism adopts mechanics core-pulling mode,simplifies the mould structure and is easy processed,effectively reduces the cost of production,the working is stable and reliable.

关 键 词：注塑模具 滑杆抽芯 型针 机动抽芯 机构设计 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]