摘  要在飞速发展的现代工业下，塑料工业也形成了突飞猛进的变化，相应的对于注塑模具的设计要求也越来越高，生产时要保证产品的质量，在工业领域，制造精度也是重要的，所以要尽可能的提高产品的精度，缩短生产周期来提高生产效率。对于企业的发展这都是相当重要的。模具技术是一门综合性很强的学科，它囊括了数控、计算机、机械等很多学科。

本文所设计的结构是泵盖注塑模，此设计涉及到了许多塑料的成型工艺，本文做了详细的讲解。主要就是设计合理的零部件，选择适用的浇注系统，还要配备合理的冷却，在生产完成时，适当的完成脱模。其中附带了许多CAD图纸，便于更好的分析模具结构。69594

毕业论文关键字：注塑模具  浇注系统  系统冷却  脱模

Pump cover injection mold design

Abstract Under the rapid development of modern industry, plastics industry also formed the rapid changes and the corresponding requirements for the design of injection mold is also getting higher and higher, the production to ensure product quality, in the industrial area of the manufacturing accuracy is an important, so as far as possible to improve product accuracy, shorten the production cycle to improve production efficiency. This is very important for the development of enterprises. Mold technology is a comprehensive discipline, it includes a lot of disciplines, such as CNC, computer, machinery, etc..

In this paper, the design of the structure is the pump cover injection mold, the design involves many plastics molding process. This paper makes a detailed explanation. Is mainly to design reasonable parts, the application of the pouring system, also equipped with a reasonable cooling, when the production is finished, complete the appropriate release, which comes with many CAD drawings, to facilitate better analysis of die structure.

Key words: injection mold  gating system  cooling system  mold release

目录

摘  要 IV

Abstract V

目录 VI

图清单 VIII

表清单 VIII

变量注释表 VIII

1 绪 论 1

1.1 概述 1

1.2塑料模具现状 1

1.3 模具产品发展趋势 2

1.4 本课题的设计步骤 3

2 塑件的工艺分析 4

2.1塑件的工艺性分析 4

2.2塑件的分析 6

2.3计算塑件的体积和质量 6

3 注塑模设计 7

3.1 注射模具分型面的选择 7

3.2 浇注系统的设计 7

3.3 型腔数目的确定及型腔的排列 12

4 成型零件和模具的设计 14

4.1 模具型腔的结构设计 14

4.2 型芯的结构设计 15

4.3 成型零件的尺寸确定 15

5 推出机构的设计 17

6 冷却系统的设计 19