饭煲外壳复杂抽芯热流道薄壁大型注塑模设计  

Design of Large and Thin-wall Injection Mold with Hot Runner and Complex Core Pulling Mechanism for the Cover of Cooker

作　　者：张维合[1] 成永涛[1] Zhang Weihe;Cheng Yongtao(GuangDong University of Science & Technology, Dongguan,Guangdong,523083)

机构地区：[1]广东科技学院机电工程学院

出　　处：《现代塑料加工应用》2019年第5期46-49,共4页Modern Plastics Processing and Applications

摘　　要：根据饭煲外壳结构特点,设计了一副大型薄壁注塑模具。通过采用热流道浇注系统,拉钩拉出机构,"复位杆+内置弹簧"先复位机构以及充分且均衡的温度控制系统,成功解决了薄壁型腔填充不良、塑件易变形、定模斜滑块开模时不易自动弹出、合模时容易和动模斜顶撞击以及成型周期较长等问题。模具已成功投产,塑件精度达到了MT3(GB/T1486-2008)的设计要求。On the basis of the structural characteristics of the cover of cooker,the large and thin-wall injection mold was design.By using hot runner pouring system, pull-out mechanism, reset mechanism with "reset rod+spring "and full and balanced temperature control system, the problems of insufficient filling of cavity, easy deformation of plastic parts, no automatic ejection of fixed-die oblique slider while opening sometimes, easy impact with oblique top of movable die while closing, and long forming period were successfully solved.The mould has been put into operation successfully, and the accuracy of the plastic parts has reached the design requirements of MT3 (GB/T 1486-2008).

关 键 词：饭煲外壳 薄壁 大型注塑模具 热流道 侧向抽芯机构 温度控制系统 

分 类 号：TQ320.52[化学工程—合成树脂塑料工业]