模具技术2017.No.4
文章编号：1001-4934(2017)04-0037-03
三通管注塑模具设计
王牛俊
（陕西国防工业职业技术学院汽车工程学院，陕西西安710300）
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摘要：根据对塑料三通管的工艺分析，确定采用一模二腔的模具结构。选用侧浇口，浇口位置设置在塑件的侧表面。采用斜导柱侧向抽芯机构，3个方向抽芯，抽芯距离为39mm。在动、定模镶块和侧型芯分别设置了冷却循环水路。推出机构为推
杆推出。整套模具结构合理，生产精度高，注塑的产品外观美观、表面光滑。关键词：注塑模；三通管；侧抽芯
中图分类号：TG241
文献标识码：B
Injection mould design of three-way pipe
WANGNiu-jun
Abstract: According to the process analysis of plastic three-way pipe, the mould structure of one die and two cavities was determined. The edge gate was chosen, and the position of the gate was set on the side surface of the plastic. The side core pulling mechanism by slanted guide pillar was chosen,in which core waspulledfrom three directions,the corepolling dis-tance is 39 mm. The cooling circulation waterway was set in moving dic insert,fixed die in-sert and side core. The ejecting mechanism is push rod mechanism. The whole set of mould has reasonable structure and high precision. The product made by the designed mould has beautifulexteriorappearanceandsmoothsurface.
Keywords:injection mould; three-way pipe; side core-pulling
的成型，采用侧向抽芯机构：推出机构采用推杆
塑件工艺分析 1
三通管塑件如图1所示。该塑件材料为 ABS，要求表面光滑，外观美观，大批量生产。从结构上来看，塑件有3个方向需要抽芯。依据上述特点综合分析，模具整体结构设计为一模二腔；为了保证制品表面质量，采用侧浇口；为了得到表面质量美观的塑件，需控制模具温度，因此加强了冷却装置的设计；为了便于三通
收稿日期：2017-02-21
作者简介：王牛俊（1982一），男，讲师。万方数据
推出。 2
模具结构设计 2.1浇注系统设计
三通管零件要求外观美观、表面光滑。依据塑件特点选用了侧浇口，浇口的位置选择在塑件的侧表面，如图2所示。主浇道人口的尺