电器仪表外壳注塑模具设计
Design of Injection Mold for Electrical Instrument Shell
傅建钢 1赵朋 2傅建中 3王永隽 1金佳莲1
作者信息
- 1. 绍兴职业技术学院, 浙江 绍兴 312000
- 2. 浙江大学 流体动力与机电系统国家重点实验室,浙江 杭州 310027;浙江大学机械工程学院,浙江 杭州 310027
- 3. 浙江大学机械工程学院,浙江 杭州 310027
- 折叠
摘要
为了设计一套能实现自动化脱模的电器仪表外壳的注塑模具,运用模流分析技术,确定较佳的浇口位置.以降低塑件翘曲变形为目标,通过对比分析确定出较佳的冷却方案.为了实现浇注系统的自动分离,选择三板模架进行开模.结合优化结果,使用UG NX软件设计了模具的浇注系统和冷却系统.根据塑件外部侧孔的结构特点,采用滑块置于动模侧和定模侧两种形式,分别与弯销配合完成外侧抽芯动作.塑件背面存在倒扣结构,采用斜顶结构进行内侧抽芯.经实际生产验证表明:该模具结构设计合理,实现了自动化脱模的目的,塑件具有较佳的成型质量,可以满足生产要求.
Abstract
In order to design a set of injection molds for the housing of electrical instruments that can realize automatic demoulding,Moldflow analysis technology is used to determine the optimal gate position.With the goal of reducing the warpage deformation of plastic parts,the best cooling scheme was determined through a comparative analysis.In order to realize the automatic separation of the gating system,the three-plate mold base is selected for mold opening.Combined with the optimization results,the gating system and cooling system of the mold were designed using UG NX software.According to the structural characteristics of the outer side hole of the plastic part,the slider is placed on the moving die side and the fixed die side in two forms,and the outer core pulling action is completed with the bent pin respectively.There is an inverted buckle structure on the back of the plastic part,and the inclined top structure is used for inner core pulling.The actual production verification shows that the mold structure design is reasonable,the purpose of automatic demoulding is realized,and the plastic parts have better molding quality and can meet the production requirements.
关键词
注塑模具/浇注系统/外侧抽芯/内侧抽芯Key words
Injection mold/Gating system/Outside core pulling/Inner core pulling引用本文复制引用
基金项目
国家自然科学基金(51875519)
浙江省职业教育在线精品课程项目()
出版年
2024
国家科技期刊平台
NSTL
万方数据