自动脱螺纹注塑模设计  

DESIGN OF INJECTION MOULD WITH AUTOMATIC THREAD DEMOULDING

作　　者：田福祥[1] 贺斌[1] 

机构地区：[1]青岛理工大学,青岛266033

出　　处：《工程塑料应用》2004年第12期51-52,共2页Engineering Plastics Application

摘　　要：给出了链轮传动自动脱螺纹注塑模结构。该模具采用热流道针阀式点浇口进料 ,无流道废料 ;通过链条传动使螺纹型芯转动 ,同时利用端面止转 ,实现自动脱螺纹 ;在动、定模型腔及螺纹型芯上分别设置三套冷却系统 ,使模具充分冷却。模具结构紧凑、工作可靠、操作方便、运转平稳、冷却效果好、劳动强度低、生产效率高 ,生产的塑料件精度高。The structure of the injection mould with automatic thread demoulding by the chain gear transmission is given. The mould is designed to take advantage of hot runner with the needle-valve type of pin-point gate, having no runner scraps. Chain gear transmission is adopted to turn the threaded core and the frictional force in the end surface is made to prevent the plastic part from turning so that the automatic thread demoulding is achieved. Three sets of cooling system are set up in the moving cavity, fixed cavity and threaded core so the mould is cooled even. The mould structure is compact, the operation is reliable and convenient, the cool result is good, and the intensity of labor is reduced. So the production efficiency is increased and the accuracy of the plastic part is high.

关 键 词：自动脱螺纹 注塑模 螺纹型芯 点浇口 定模 热流道 型腔 模具结构 端面 精度 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]