模具工业
模具工業
모구공업
DIE & MOUID INDUSTRY
2013年
12期
55-57,60
,共4页
牛奶瓶盖%限位小拉杆%自动脱螺纹
牛奶瓶蓋%限位小拉桿%自動脫螺紋
우내병개%한위소랍간%자동탈라문
milk bottle’s caps%limit rod%automatic thread demoulding
分析了某款牛奶瓶盖的成型工艺特点，介绍了瓶盖的注射模结构设计和模具工作过程。利用拉模扣和限位小拉杆完成2次分型、液压马达带动脱螺纹抽芯机构完成塑件成型，利用推杆推出塑件，顺利开模。合模时，复位杆将推板复位，液压马达反转复位螺纹型芯。模具设计结构紧凑，工作可靠，运转平稳，生产塑件满足要求，对内螺纹塑件的注射模设计有一定的参考作用。
分析瞭某款牛奶瓶蓋的成型工藝特點，介紹瞭瓶蓋的註射模結構設計和模具工作過程。利用拉模釦和限位小拉桿完成2次分型、液壓馬達帶動脫螺紋抽芯機構完成塑件成型，利用推桿推齣塑件，順利開模。閤模時，複位桿將推闆複位，液壓馬達反轉複位螺紋型芯。模具設計結構緊湊，工作可靠，運轉平穩，生產塑件滿足要求，對內螺紋塑件的註射模設計有一定的參攷作用。
분석료모관우내병개적성형공예특점，개소료병개적주사모결구설계화모구공작과정。이용랍모구화한위소랍간완성2차분형、액압마체대동탈라문추심궤구완성소건성형，이용추간추출소건，순리개모。합모시，복위간장추판복위，액압마체반전복위라문형심。모구설계결구긴주，공작가고，운전평은，생산소건만족요구，대내라문소건적주사모설계유일정적삼고작용。
The technical characteristics of a kind of milk bottle’s caps were analyzed. The structural design and working procedure of the injection mold were presented. The injec-tion mold used screw plug and limit rod to complete two parting. Used motor to drive the core pulling mechanism for removing the thread and completed the plastic molding. Ejector pins were used to eject the parts and push back pins assured the ejector plate reposition when clamping the mold. At the same time, the motor rolled back to reposit the thread core. The mold structure was compacted and working procedure was good and steady. The product was satisfied with the desire and the design had function of popularizing for plas-tic part with internal thread.
