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《工程塑料应用》 2021年第02期
DOI:10.3969/j.issn.1001-3539.2021.02.017
防疫消毒瓶盖异型子模双色注塑模设计
杨剑萍1,肖国华1,刘路兴2,刘志鹏3
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 
Design of Bi-color Injection Mold with Different Sub-mold for Epidemic Prevention and Disinfection Bottle Cap
Yang Jianping1, Xiao Guohua1, Liu Luxing2, Liu Zhipeng3
1. School of Mechanical and Electrical Engineering, Zhejiang Business Technology Institute, Ningbo 315012, China; 2. Plastics Research and Development Center of Shandong Province, Jinan 250002, China; 3. 32379 Unit of the Chinese People's Liberation Army, Beijing 100072, China 
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。 
Abstract:Aimed at the molding of bi-color plastic parts for the epidemic prevention and disinfection bottle cap, a pair of two-color 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 
Keywords:bi-color molding; mold design; injection; structure design; point-gate; submarine-gate 
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) 
本文引用格式:
杨剑萍,肖国华,刘路兴,等.防疫消毒瓶盖异型子模双色注塑模设计[J].工程塑料应用,2021,49(2):97-102.
Yang Jianping,Xiao Guohua,Liu Luxing,et al. Design of bi-color injection mold with different sub-mold for epidemic prevention and disinfection bottle cap[J]. Engineering Plastics Application,2021,49(2):97-102. 

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