热水器电池底座盖模具设计

摘要

本次毕业设计的课题为淋浴器电池盒盖的注射成型模具设计，主要从淋浴器电池盒盖材料特性、成型性能及淋浴器电池盒盖的形状、型腔结构等多角度详细分析了淋浴器电池盒盖注塑加工工艺性。因无批量生产要求，且零件体积不大、结构较为简单，故采用“一模两腔”的生产方式。初步选择注塑机的型号和规格，分析淋浴器电池盒盖结构及生产方式宜采用单分型结构，对浇注系统、成型零部件、导向及定位机构、脱模机构、冷却系统、模架各部件零件都进行了相关的计算和选择。最后，在参照淋浴器电池盒盖的体积、重量等参数后对注塑机的相关主要参数进行校核，以判断所选的注塑机能否满足注塑要求。

关键词：注射成型；一模两腔；单分型面；注塑机；

Abstract

The graduation design subject to cover the injection molding design, mainly from the plastic material characteristics, forming performance and plastic parts, die-cavity structure is analyzed in detail from multiple perspectives, such as plastic injection molding process technology. Because there is no batch production requirements, and small parts, simple structure, a mold piece of the means of production. Preliminary selection of type and specification, injection molded parts structure analysis and production mode, appropriate USES double type structure, gating system, forming parts, orientation and positioning and demoulding mechanism, cooling system, formwork components parts are made of calculation and choice. Finally, in the reference of the volume, weight after injection parameters such as the main parameters related to test to determine whether meet the selected injection molding requirements.

Key words：Injection molding; Mold One; Duplex profile; Injection molding machine;

目录

第一章引言 ..................................................................................................................................... - 1 -

1.注塑行业存在的主要问题....................................................................................................... - 1 -

2.选题意义 .................................................................................................................................. - 2 - 第二章淋浴器电池盒盖的工艺性分析 ............................................................................................ - 4 -

2.1淋浴器电池盒盖的原材料分析 ............................................................................................ - 4 -

2.2成型特性及条件.................................................................................................................... - 6 -

4、 ....................................................................................................................................... - 6 -

5、 ....................................................................................................................................... - 6 -

2.3淋浴器电池盒盖的结构和尺寸精度及表面质量分析 ......................................................... - 6 -

2.3.1结构分析..................................................................................................................... - 6 -

2.3.2尺寸精度分析............................................................................................................. - 7 -

2.3.3表面质量分析........................................................................................................... - 7 -

2.4计算淋浴器电池盒盖的体积和重量 .................................................................................... - 8 - 第三章初选注射成型机的型号和规格 ............................................................................................ - 9 - 第四章淋浴器电池盒盖注射工艺参数的确定............................................................................... - 10 - 第五章注射模的结构设计.............................................................................................................. - 11 -

5.1分型面的选择...................................................................................................................... - 11 -

5.2确定型腔数目及排列方式 .................................................................................................. - 12 -

5.3浇注系统设计...................................................................................................................... - 12 -

5.3.1主流道设计............................................................................................................... - 13 -

5.3.2分流道设计............................................................................................................... - 13 -

5.3.3浇口设计................................................................................................................... - 14 -

5.3.4浇口套及定位环设计 ............................................................................................... - 14 -

5.4成型零件结构设计.............................................................................................................. - 15 -

5.4.1型腔工作尺寸的计算 ............................................................................................... - 15 -

5.4.2型腔侧壁厚度和底板厚度计算 ............................................................................... - 18 -

5.5导向及定位机构设计.......................................................................................................... - 19 -

5.5.1导向机构的设计....................................................................................................... - 19 -

5.5.2导柱导套材料的选择和热处理 ............................................................................... - 20 -

5.6脱模机构设计...................................................................................................................... - 20 -

5.6.1脱模力计算............................................................................................................... - 20 -

5.6.2脱模机构的选择与设计 ........................................................................................... - 21 -

5.6.2.1模推出机构的分类及设计原则 ............................................................................ - 21 -

5.6.2.2 脱模机构的设计原则 ........................................................................................... - 21 -

5.6.3 制品推出的基本方式 ............................................................................................ - 22 -