推杆加推件板二次顶出脱模机构设计  

Design of two-stage ejection mechanism of ejector pin combined with ejector plate

作　　者：刘斌[1] 林梓威 黄强 LIU Bin;LIN Zi-wei;HUANG Qiang(Key Laboratory of Polymer Processing Engineering of Ministry of Education,South China University of Technology,Guangzhou,Guangdong 510641,China;Orthey Technology（Shenzhen）Co.,Ltd.,Shenzhen,Guangdong 518110,China)

机构地区：[1]华南理工大学聚合物成型加工工程教育部重点实验室,广东广州510641 [2]欧唐科技(深圳)有限公司,广东深圳518110

出　　处：《模具工业》2018年第11期48-50,共3页Die & Mould Industry

基　　金：广东省省级科技计划项目(2014B010132002;2017B090913003)

摘　　要：针对某汽车塑件壁厚较薄、脱模阻力较大的特点,设计了推杆加推件板二次顶出脱模机构,在弹簧活动块上设计倾斜凹槽实现推件板第1次平稳顶出,然后利用推杆推动塑件,使其完全脱模,注射模的脱模结构实现了薄壁制件的无顶出痕迹自动化生产,为同类塑件的注射模脱模机构设计提供一定的参考作用。According to the thin-wall and the high ejection force of an automobile injection part, a two-stage ejection mechanism of ejector pin combined with ejector plate was designed. The inclined groove was designed on the spring movable block to achieve the f^st steady ejection, and then the plastic was pushed out by the ejector pins for fully ejecting from the mould. Automation production of thin-walled injection part without ejection mark was realized by using the ejection mechanism, which provided a reference for the design of the ejection mechanism of similar plastics.

关 键 词：注射模 脱模机构 二次顶出 推件板 

分 类 号：TG241[金属学及工艺—铸造] TQ320.662[化学工程—合成树脂塑料工业]