机械5

本设计选用插座后盖做注塑模具设计，分析塑胶件的形状特点、尺寸大小、尺寸标注方法、精度要求，分析塑胶件的生产批量分析产品成本。确定成型方案及模具形式。 根据对塑胶零件的形状、尺寸、精度及表面质量要求的分析结果，确定所需的模塑成型方案：制品的后加工、分型面的选择、型腔的数目和排列、成型零件的结构、浇注系统等。 详细说明了塑料注射模具设计方法，以及各种参数的具体计算方法，如塑件的成型工艺，塑料脱模机构的设计。 关键词：插座后盖，注塑模具；成型，分型面，型腔，浇注系统 Abstract This desig
n chooses the back cover of socket as the i
njectio
n mold desig
n, a
nalyses the shape characteristics, size, dime
nsio
n marki
ng method a
nd precisio
n requireme
nts of plastic parts, a
nd a
nalyses the productio
n batch cost of plastic parts. Determi
ne the formi
ng pla
n a
nd die form. Accordi
ng to the a
nalysis results of the shape, size, accuracy a
nd surface quality requireme
nts of plastic parts, the required mouldi
ng schemes are determi
ned: the post-processi
ng of products, the selectio
n of parti
ng surface, the
number a
nd arra
ngeme
nt of cavity, the structure of mouldi
ng parts, the pouri
ng system, etc. The desig
n method of plastic i
njectio
n moulds a
nd the specific calculatio
n methods of various parameters, such as the mouldi
ng process of plastic parts a
nd the desig
n of plastic demouldi
ng mecha
nism, are described i
n detail. Key words: socket back cover, i
njectio
n mould; formi
ng, parti
ng surface, cavity, gati
ng system 目录 设计任务书I 摘要III Abstract IV 引言1 1.塑件分析2 2所选材料的成型特性与工艺参数2 2.1成型前准备3 2.2注塑过程3 2.3注塑后处理3 2.4材料ABS的注塑成型参数3 2.5材料ABS性能。 4 3.浇注系统的设计4 4.分型面选择及型腔布置8 5.排气系统的设计及流动比的校核10 6.成型零部件的设计与计算10 6.1型腔，型芯的结构设计10 6.2成型零部件工件尺寸计算12 6.3零件的加工工艺15 6.4模具加工工艺流程16 7.脱模机构的设计19 8.合模导向机构的设计20 9.温度调节系统的设计与计算： 21 10.模架的选择23 11.模具装配工作原理： 24 设计小结26 参考资料28