家用空调孔堵盖注塑件模具设计

论文总字数：26731字

摘 要

随着塑料产品在各个领域的广泛应用,人们对产品的质量要求也不断提升。传统的依据经验进行注塑模具设计和工艺调试的方法，越来越不能满足结构复杂、质量要求高的注塑件生产要求，CAE技术的应用给注塑模具和工艺的开发带来了新的思路，同时能够缩减产品开发周期、节约成本及提高生产效率。本文以某款空调堵盖为研究对象，运用CAD设计及有限元数值模拟手段对注塑模进行合理设计。本文主要研究内容如下:首先介绍了注射成型模具的发展和选题的背景与意义，接着分析零件的工艺性，初选注塑机及其校核，对注射模的基本结构进行设计，利用UG软件设计出3D模型，在模具设计过程中借助Moldflow模流分析软件进行注塑成型过程分析，预测各设计方案成型过程中可能存在的缺陷，进而设计出合理的注塑模具结构。

关键词:注塑模；空调孔装饰盖；Moldflow。

Abstract

With the wide application of plastic products in various fields, people's requirements for product quality have been constantly improved. Traditional methods of design and process debugging of injection mould based on experience are increasingly unable to meet the production requirements of injection parts with complex structure and high quality requirements. The application of CAE technology brings new ideas to the development of injection mould and process, and can reduce the product development cycle, save costs and improve production efficiency. In this paper, a certain type of air conditioning cover is taken as the research object, and the injection mold is reasonably designed by CAD design and finite element numerical simulation. This article main research content is as follows: first of all, this paper introduces the development of injection molding and the selected topic background and significance, then the analysis technology of components, injection molding machine and its primary check, the basic structure of the injection mould design, using UG software to design 3 d model, in the mold design process using Moldflow mold flow analysis software for injection molding process analysis, prediction of possible defects in the design scheme of forming process, and then design the reasonable structure of injection mold.

Key words: injection mold; Air conditioning hole decorative cover; Moldflow.

目录

第一章 绪 论..........................................................................................................................1

1.1注射成型模具的地位及发展......................................................................................1

1.1.1 注塑成型模具的地位......................................................................................1

1.1.2 注塑成型模具的发展......................................................................................1

1.2 选题的背景、设计方法、目的和意义.....................................................................1

1.2.1 选题的背景和设计方法..................................................................................1

1.2.2 设计的作用和意义..........................................................................................2

第二章 塑件的工艺性及成型工艺条件..................................................................................3

2.1零件制品图..................................................................................................................3

2.2 塑件结构工艺性分析.................................................................................................4

2.3 塑件成型性能.............................................................................................................4

2.4 PP的物理化学性能指标.............................................................................................4

2.5注塑模工艺条件..........................................................................................................5

第三章 塑件模流分析..............................................................................................................6

3.1分析前处理.................................................................................................................6

3.1.1 划分网格..........................................................................................................6

3.1.2 注射工艺参数..................................................................................................7

3.2 浇口位置分析...........................................................................................................8

3.3 浇注系统设计...........................................................................................................8

3.3.1 型腔及流道系统设置....................................................................................8

3.3.2 冷却回路设置................................................................................................9

3.4 模具流动分析.........................................................................................................13

3.4.1 填充时间分析..............................................................................................13

3.4.2 注射位置处压力：XY图...........................................................................13

3.4.3 锁模力：XY图...........................................................................................14

3.4.4 气穴..............................................................................................................15

3.5 翘曲分析.................................................................................................................15

3.5.1 总的翘曲变形..............................................................................................15

3.5.2 X方向的翘曲变形.......................................................................................16

3.5.3 Y方向的翘曲变形.......................................................................................16

3.5.4 Z方向的翘曲变形........................................................................................17

3.6 模流分析结论.........................................................................................................18

第四章 塑件成型设备............................................................................................................19

4.1注塑机的选择............................................................................................................19

4.2 注射机基本参数的校核...........................................................................................20

4.2.1 注射量的校核................................................................................................21

4.2.2 锁模力的校核................................................................................................21

4.2.3 最大注射压力的校核....................................................................................21

4.2.4 校核注射机的安装尺寸................................................................................21

4.2.5 开模行程的校核............................................................................................21

第五章 型腔分布与分型面设计.............................................................................................22

5.1 型腔数目的确定和排列方式....................................................................................22

5.2 分型面的选择............................................................................................................23

第六章 浇注系统的设计.........................................................................................................24

6.1主流道的设计.............................................................................................................24

6.2分流道的设计.............................................................................................................25

6.3浇口的设计.................................................................................................................26

第七章 成型零部件的设计.....................................................................................................28

7.1型腔的设计.................................................................................................................28

7.2型芯的设计.................................................................................................................29

第八章 导向机构的设计.........................................................................................................31

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