玩具拼块注塑模设计及CAD仿真

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                                                     玩具拼块注塑模设计及CAD仿真

中  文  摘  要

玩具,供人们尤其是儿童玩乐和游戏的产品。娱乐性、教育性、安全性是玩具的三个基本特征。玩具拼块大多是为儿童设计和制造的,旨在通过儿童对图形的组合、拆分、再组合,锻炼孩子的独立思考能力,同时培养他们的想象力和持之以恒的耐心。

本文以玩具拼块为塑件,设计了其注射模并进行CAD仿真。主要步骤有:塑件材料分析;确定型腔数目;选定分型面;型腔的配置;确定浇注系统和排气系统;确定脱模方式;冷却系统和脱模机构的结构设计;相关数据的计算和校核;绘制模具的装配图;进行mold flow仿真;编写设计说明书。

本次设计,提高了对注射模具的认识,将本科阶段学习的专业知识与实际结合,为以后的工作生产打下了较好的基础。

 

关键词:玩具拼块;注射模具;mold flow仿真;脱模机构

Toy Block Injection Mould Design and CAD Simulation

ABSTRACT

Toys, products for people, especially children, playing and games. Entertainment, education and safety are the three basic characteristics of toys. Most toy blocks are designed and manufactured for children. They are designed to combine children's graphic combinations, splits, and recombination to exercise children's ability to think independently, and to cultivate their imagination and perseverance.

This article uses toy blocks as plastic parts, designs its injection mold and carries out CAD simulation. The main steps are: analysis of plastic parts; determination of the number of cavities; selection of parting surfaces; configuration of cavities; determination of casting systems and exhaust systems; determination of methods; structural design of cooling systems and mechanisms; relevant data Calculation and verification; drawing of the assembly drawing of the mold; simulation of the mold flow; preparation of design specifications.

This design has improved the understanding of injection moulds, combined the professional knowledge of undergraduate studies with practice, and laid a good foundation for future job production.

KEY WORDS: Toy blocks; Injection Mold; Mold Flow Simulation; Ejection Mechanism

目录

第一章 前言.............................................................................................................................................................. 1

1.1中国塑料模具工业发展现状............................................................................................................................................. 1

1.2塑料成型模具发展趋势.....................................................................................................................................................  3

1.3毕业设计的目的与内容.....................................................................................................................................................  3

第二章 塑件的工艺性分析....................................................................................................................................... 4

2.1设计任务...............................................................................................................................................................................   5

第三章 塑件成型方案的确定................................................................................................................................... 7

3.1塑件成型方法的确定..........................................................................................................................................................  8

3.2分型面及其选择..................................................................................................................................................................   8

3.3型腔数目和排列方式的确定.............................................................................................................................................  9

3.4模具结构形式的初步确定...............................................................................................................................................   10

3.5初选注射机.........................................................................................................................................................................    10

第四章 浇注系统与排气系统的设计....................................................................................................................... 13

4.1浇注系统的设计................................................................................................................................................................    13

4.2排气系统的设计................................................................................................................................................................    18

第五章 成型零件的设计........................................................................................................................................... 19

5.1成型零件结构的设计.......................................................................................................................................................     19

5.2  成型零部件的工作尺寸计算.......................................................................................................................................  20

第六章 脱模机构的设计............................................................................................................................................. 22

6.1  脱模机构设计的原则....................................................................................................................................................  22

6.2  脱模力的计算.................................................................................................................................................................  22

6.3  脱模方式的确定.............................................................................................................................................................  23

6.4  推杆的设计......................................................................................................................................................................  23

第七章 侧向抽芯机构设计.............................................................................................................................. ........ 26

7.1侧向分型与侧向机构分类...............................................................................................................................................   26

7.2侧向抽芯机构的设计.......................................................................................................................................................    26

第八章 模具温度调节系统....................................................................................................................................... 29

8.1  模具温度及塑料成型温度........................................................................................................................................... 29

8.2  冷却系统设计计算......................................................................................................................................................... 30

8.3  冷却系统的设计.............................................................................................................................................................  32

第九章 模具结构零部件的设计................................................................................................................................ 34

9.1模架设计.............................................................................................................................................................................     34

9.2  支承零部件设计.............................................................................................................................................................  35

9.3  合模导向机构设计.........................................................................................................................................................  35

第十章 注射机的校核................................................................................................................................................ 37

10.1最大注射量的校核.........................................................................................................................................................     37

9.2锁模力的校核....................................................................................................................................................................      37

9.3  注射压力的校核.............................................................................................................................................................  38

9.4  模具安装部分的校核....................................................................................................................................................  38

9.5  模具开模行程的校核....................................................................................................................................................  38

9.6  模具闭合高度的校核....................................................................................................................................................  38

9.7  顶出部分的校核.............................................................................................................................................................  38

第十一章 模具的工作原理........................................................................................................................................ 39

11.1  模具的结构组成...........................................................................................................................................................  39

第十二章 总结........................................................................................................................................................... 40

参考文献..................................................................................................................................................................... 41

致   ....................................................................................................................................................................... 43

图纸清单..................................................................................................................................................................... 44

附录1:程序清单........................................................................................................................................................ 45

................................................................................................................................................................................. 45