行车记录仪面壳注塑模具设计

doi:10.19491/j.issn.1001-9278.2021.11.020

中国塑料 ›› 2021, Vol. 35 ›› Issue (11): 133-137.DOI: 10.19491/j.issn.1001-9278.2021.11.020

行车记录仪面壳注塑模具设计

周建安()

深圳职业技术学院机电学院，广东深圳 518055

收稿日期:2021-05-10 出版日期:2021-11-26 发布日期:2021-11-23
作者简介:周建安(1973-),男，副教授，主要研究方向：模具CAD/CAM, zhoujianan@szpt.edu.cn

Design of Injection Mould for Face Cover of Driving Recorder

ZHOU Jianan()

School of Mechanical and Electrical Engineering，Shenzhen Polytechnic，Shenzhen 518055，China

Received:2021-05-10 Online:2021-11-26 Published:2021-11-23

摘要/Abstract

摘要：

分析了行车记录仪面壳的结构特征及技术要求，设计了针对该产品的1模2腔的注塑模具，该模具具有4种不同类型的抽芯机构，第一种为定模隧道式拔块抽芯机构，第二种为倾斜式斜导柱抽芯机构，其中间位置还设置了第三种抽芯机构??双T形块抽芯机构，与前者具有联动关系，第四种为斜顶抽芯机构；文中还为倾斜式斜导柱抽芯机构和双T形块抽芯机构推导了抽芯距的计算公式，设计了开放式热流道转圆形分流道和扇形浇口的浇注系统，以及顶针、顶管和斜顶相结合的顶出模式。

关键词: 行车记录仪, 抽芯机构, 拔块, 斜顶, 浇注系统, 顶出机构

Abstract:

The technical requirements and structure characters of the face cover of a type of driving recorder were introduced， and a type of injection mould with two cavities and three different core?pulling mechanisms was designed for the face cover. The first mechanism is a tunnel mode core?pulling mechanism with a pushing block fixed on the top plate. The second mechanism is a titling angular core?pulling mechanism. In the middle of this mechanism， a double T?blocks core?pulling mechanism as the third mechanism is fixed， and the other two mechanisms are linked with it. The fourth mechanism is a common lifter. The computing formulas of core?pulling distance for the titling angular core?pulling mechanism and the double T?blocks core?pulling mechanism were given. The runner system for the mould is open hot nozzles turning to round runners and then to fan?shaped gates. Ejection pins and sleeves were used for the ejector system of the mould.

Key words: driving recorder, core?pulling mechanism, pushing block, lifter, runner system, ejector system

中图分类号:

TQ 320.66

周建安. 行车记录仪面壳注塑模具设计[J]. 中国塑料, 2021, 35(11): 133-137.

ZHOU Jianan. Design of Injection Mould for Face Cover of Driving Recorder[J]. China Plastics, 2021, 35(11): 133-137.

图/表 9

图1 行车记录仪面壳三维图

Fig.1 Three dimensional model of the face cover of the driving recorder

图2 行车记录仪面壳二维图

Fig.2 2D drawing of the face cover of the driving recorder

图3 浇注系统示意图

Fig.3 Schematic diagram of the gating system

图4 隧道式抽芯机构示意图

Fig.4 Schematic diagram of the tunnel mode pulling mechanism

图5 倾斜式斜导柱抽芯机构

Fig.5 Titling angular core?pulling mechanism

图6 双T形槽侧抽芯机构

Fig.6 Double T?blocks core?pulling mechanism

图7 斜顶分布示意图

Fig.7 Schematic diagram of lifters

图8 抽芯机构总体分布示意图

Fig.8 Schematic diagram of all pulling?core mechanisms

图9 模具装配图

Fig.9 Assembly drawing

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行车记录仪面壳注塑模具设计

Design of Injection Mould for Face Cover of Driving Recorder

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