汽车雨挡导流片浮顶式侧抽芯机构注射模设计

doi:10.19491/j.issn.1001-9278.2020.05.015

中国塑料 ›› 2020, Vol. 34 ›› Issue (5): 97-101.DOI: 10.19491/j.issn.1001-9278.2020.05.015

汽车雨挡导流片浮顶式侧抽芯机构注射模设计

易忠奇(), 贺柳操

湖南机电职业技术学院机械工程学院，长沙 410151

收稿日期:2019-11-12 出版日期:2020-05-26 发布日期:2020-05-22

Design of Injection Mold with Floating Roof Side Core⁃pulling Mechanism for Rain Deflector

Zhongqi YI(), Liucao HE

School of Mechanical Engineering Hunan Mechanical And Electrical Polytechnic, Changsha 410151 China

Received:2019-11-12 Online:2020-05-26 Published:2020-05-22
Contact: Zhongqi YI E-mail:yizhongqi@126.com

摘要/Abstract

摘要：

介绍了一款汽车雨挡导流片异型塑件两板注射模的结构设计，该模具基于采用常规的滑块抽芯机构及斜顶机构难以实现塑件完全脱模的机构设计困难问题，突破常规设计思路，设计了一种型芯浮顶式侧抽芯机构来实现塑件的自动化注射生产。机构中，在模具开模打开后，通过顶出板及顶杆将塑件和部分成型一同顶出，而后再通过侧边二次顶出机构将塑件从局部型芯上顶出而实现塑件的完全脱模，有效地简化了模具结构设计，降低了模具的加工制造难度，降低了模具的制造成本，模具结构复杂新颖，工作稳定可靠，为异型类塑件的模具结构及机构设计创新设计提供了一个较好的案例借鉴。

关键词: 异型塑件, 机构设计, 模具结构, 脱模, 注射成型

Abstract:

This paper reported the structural design of a two?plate injection mold for the special?shaped plastic part of the rain deflector of automobile. This mold was designed on the basis of the difficulty in the complete demolding of the plastic part by the conventional slide core?pulling and inclined top mechanisms. Aiming at a breakthrough in the traditional design scheme, a core floating top side core?pulling mechanism was designed to realize the automatic injection production of the plastic part. In this mechanism, the plastic part and the part of the mold were ejected through an ejector plate and an ejector rod after the mold was opened, and then the plastic part was ejected from the local core through the side secondary ejection mechanism to realize the complete demolding. Such a design effectively simplified the mold structure, reduced the difficulty level in the processing and manufacturing of the mold and also reduced the manufacturing cost of the mold. The mold structure was complex and novel, but it was stable and reliable. This work provided a good reference for the innovative design of molds and mechanisms of special?shaped plastic parts.

Key words: special?shaped plastic part, mechanism design, mold structure, demolding, injection molding

中图分类号:

TQ320.66⁺2

易忠奇, 贺柳操. 汽车雨挡导流片浮顶式侧抽芯机构注射模设计[J]. 中国塑料, 2020, 34(5): 97-101.

Zhongqi YI, Liucao HE. Design of Injection Mold with Floating Roof Side Core⁃pulling Mechanism for Rain Deflector[J]. China Plastics, 2020, 34(5): 97-101.

图/表 5

图1 塑件结构

Fig.1 Structure of plastic parts

图2 分型及脱模设置

Fig.2 Setting of parting and demoulding

图3 模具结构

Fig.3 Mould structure

图4 型芯浮顶式侧抽芯机构

Fig.4 Core pulling mechanism with floating?ejecting

图5 模具工作原理

Fig.5 Working principle of the mould

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汽车雨挡导流片浮顶式侧抽芯机构注射模设计

Design of Injection Mold with Floating Roof Side Core⁃pulling Mechanism for Rain Deflector

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