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《工程塑料应用》 2020年第09期
DOI:10.3969/j.issn.1001-3539.2020.09.016
给排水管三通接头旋转抽芯机构注塑模具设计
简忠武1,苏曦2,王品3,柳美玲2,熊建武1
1.湖南工业职业技术学院,长沙 410208; 2.马鞍山学院,安徽马鞍山 243111; 3.芜湖瑞鹄模具有限公司,安徽芜湖 241000 
Design of Injection Mold with Rotating Demoulding Mechanism for Tee Joint of Water Supply and Drainage Pipe
Jian Zhongwu1, Su Xi2, Wang Pin3, Liu Meiling2, Xiong Jianwu1
1. Hunan Industry Polytechnic, Changsha 410208, China; 2. Ma'anshan University, Ma'anshan 243111, China; 3. Wuhu Ruihu mould Co., Ltd., Wuhu 241000, China 
摘要:设计了一副侧浇口两板注塑模具,用于聚氯乙烯给排水管三通接头塑件的自动注射成型。模腔使用一模两腔布局。模具一次开模打开,一次顶出。在模具单腔中,针对三通接头内壁的自动脱模,用分步脱模的办法,设计了三个脱模机构实施脱模。第一个为斜导柱驱动滑块机构,第二个为油缸驱动滑块机构,第三个为直线抽芯+圆弧旋转抽芯复合机构。三个机构按序分步动作,分别依靠模具的开模动作、油缸机构驱动顺序配合动作来实现。直线抽芯+圆弧旋转抽芯复合机构的特点为:先借助于开模动力,驱动C3滑块座上的斜导柱滑块直线抽芯机构进行侧抽芯,然后再由油缸驱动C3滑块座转动,驱动圆弧旋转抽芯机构实施旋转抽芯。 
Abstract:A pair of side gate two plate injection mold was designed for automatic injection molding of polyvinyl chloride water supply and drainage pipe tee joint plastic parts. Mold cavity layout is one mold with two cavity. The mold was opened once and ejected once. In the single cavity of the mold, three demoulding mechanisms were designed to realize the automatic demoulding of the inner wall of the tee joint by step demoulding. The first is the slide mechanism driven by angle pin, the second is the slider mechanism driven by hydro-cylinder, and the third is the composite mechanism of linear core pulling and circular arc rotating core pulling. The actions of the three mechanisms are realized by opening the mold and driving sequence of the hydro-cylinder. The characteristics of the composite mechanism of linear core pulling and circular arc rotating core pulling are as follows: first, with the help of mold opening power, the angle pin slider on the C3 slider'seat is driven by the mold opening power, and the linear core pulling is finished, and then the C3 slider'seat is driven by a hydro-cylinder to drive the arc rotating core pulling mechanism to implement the rotary core pulling. 
关键词:三通接头;分步脱模;复合机构;旋转抽芯;注塑模具 
Keywords:tee joint; step demoulding; composite mechanism; rotary core pulling; injection mold 
本文引用格式:
简忠武,苏曦,王品,等.给排水管三通接头旋转抽芯机构注塑模具设计[J].工程塑料应用,2020,48(9):88-91,102.
Jian Zhongwu,Su Xi,Wang Pin,et al. Design of injection mold with rotating demoulding mechanism for tee joint of water supply and drainage pipe[J]. Engineering Plastics Application,2020,48(9):88-91,102. 

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