北京理工大学珠海学院 2020 届本科生毕业设计中空吹塑成型模具设计-型坯挤出模具北京理工大学珠海学院 2020 届本科生毕业设计本人签名： 日 期 ： 年 月 日北京理工大学珠海学院 2020 届本科生毕业设计中空吹塑成型模具设计-型坯挤出模具摘 要随着我国的工业发展，对模具的要求越来越高，塑料成型的方式显得十分重要，塑料挤出成型是塑料成型的主要方式之一。人们的需求对挤出模具也有了更高的要求。本次设计的挤出模具是挤出一个矿泉水瓶坯，因此设计单层挤出模具，解决型坯离模膨胀，牵引变形，冷却收缩问题。挤出模具挤出的瓶坯通过吹塑获得良好的塑料瓶。主要是挤出模具的结构设计以及吹塑模具的方案设计，挤出模具的主要零件有口模、芯模和分流锥。还有对其他零件的尺寸计算，并且使用 Proe 进行实体建模，导出二维图，使用 CAD 绘图软件进行装配图和零件图的标注尺寸和技术要求。关键词：塑料成型；挤出模具；吹塑模具北京理工大学珠海学院 2020 届本科生毕业设计Hollow blow molding mold design - blank extrusion moldAbstractWith the development of China's industry, the requirements for the mold are getting higher and higher. The way of plastic forming is very important.People's demand for extrusion mold also has higher requirements.The extrusion mould designed in this paper is to extrude a fresh water bottle. Therefore, a single-layer extrusion mould is designed to solve the problems of mold expansion, traction deformation and cooling shrinkage.The preform extruded from the extrusion mould is blown to obtain a good plastic bottle.It is mainly the structural design of the extrusion die and the scheme design of the blow molding die. The main parts of the extrusion die are the mouth die, the core die and the flow cone.Besides, it also calculates the dimensions of other parts, conducts entity modeling with Proe, exports two-dimensional drawings, and USES CAD drawing software to mark the dimensions and technical requirements of assembly drawings and part drawings....
