防疫消毒瓶盖异型子模双色注塑模设计  

Design of Bi-color Injection Mold with Different Sub-mold for Epidemic Prevention and Disinfection Bottle Cap

作　　者：杨剑萍 肖国华[1] 刘路兴[2] 刘志鹏[3] Yang Jianping;Xiao Guohua;Liu Luxing;Liu Zhipeng(School of Mechanical and Electrical Engineering,Zhejiang Business Technology Institute,Ningbo 315012,China;Plastics Research and Development Center of Shandong Province,Jinan 250002,China;32379 Unit of the Chinese People's Liberation Army,Beijing 100072,China)

机构地区：[1]浙江工商职业技术学院机电工程学院,浙江宁波315012 [2]山东省塑料研究开发中心,济南250002 [3]中国人民解放军32379部队,北京100072

出　　处：《工程塑料应用》2021年第2期97-102,共6页Engineering Plastics Application

基　　金：浙江省高等教育“十三五”第二批教学改革研究项目(jg20190778);2020年度高等学校国内访问工程师“校企合作项目”(FG2020107);2019年度高等学校国内访问工程师“校企合作项目”(FG2019078);宁波市公益类科技计划项目(202002N3128)。

摘　　要：针对防疫消毒瓶盖双色塑件的成型,设计了一副双色注塑模,该双色注塑模由两副不同结构的子模具组成,其中一副子模具采用点浇口三板模结构,另外一副子模具采用潜浇口假三板模结构。两副子模具定模的高度相同,而结构不同。在两副子模具的定模侧各自设置了3个定模弯销抽芯滑块机构来实现塑件外壁的成型和脱模;在三板模子模具中,利用流道板与定模板的打开,驱动定模侧的3个定模滑块进行侧抽芯。在假三板模子模具中,利用加厚固定板与定模板之间的打开,驱动定模侧的3个定模滑块进行侧抽芯。点浇口和潜浇口的使用,保证了两次成型的流道废料都自动切除和脱模。在第一色子塑件上预留第二色子塑件模腔的注塑流动通道,简化了第二色模腔的浇注系统,降低了模具设计难度。Aimed at the molding of bi-color plastic parts for the epidemic prevention and disinfection bottle cap,a pair of twocolor injection mold was designed,which was composed of two sub-molds with different structures,one of the sub-mold adopted the structure of three-plate mold with point-gate,and the other sub-mold adopted the structure of pseudo three-plate mold with submarine-gate.In the structure design of the two sub-molds,the height of the fixed-mold was the same,but the structure was different.In the two sub-molds,three fixed-mold bending pin core pulling slider mechanisms were respectively set to realize the molding and demoulding of the outer wall of the plastic part.In the three-plate mold,the opening of the runner-plate and the fixed-plate was used to drive the three fixed-mold sliders on the side of the fixed-mold for side core pulling.In the pseudo three-plate mold,the opening between the thickened fixed-plate and the fixed-plate was used to drive three fixed-mold sliders on the fixed-mold side for side core pulling.The use of point-gate and submarine-gate ensures the automatic cutting and demoulding of the waste material in the two forming processes.The injection flow channel of the mold cavity of second-color plastic part is reserved on the first color plastic part,which simplifies the gating system of the second color mold cavity and reduces the difficulty of mold design.

关 键 词：双色成型 模具设计 注塑 结构设计 点浇口 潜浇口 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]