圆珠笔顶杆注射模设计

摘要

《圆珠笔顶杆注射模设计》是编写者两个月以来所编写的毕业设计说明书。主要介绍：注射模的整个过程，包括成型零部件、推出机构、流道等一些设计。在论文书写过程中，通过一个月的时间对原始资料进行搜集，充分考虑模具的各种结构并和指导老师及同学之间进行讨论，最终选择了论文所写的模具结构。

本论文的资料大多是编写者结合三年所学的各方面的理论知识完成的，包括机械制图、公差与配合、工程力学、机械设计、注射模具成型、工程材料等；一部分是通过查手册所得；还有少部分是同学之间的交流和自己三年的实习总结。

关键词：三板式、点浇口、侧抽芯

Abstract

"Pen mandrel design of injection mold" is author of two months

since graduation written instructions. Focuses on: the whole process of injection mold, molding parts, including the introduction of institutions, such as some of the design flow. In the paper writing process, through the month of the original data collection, take full account of the various structures and mold and guide discussions between teachers and students, the final choice of papers written by the mold stru cture.

Most of the information in this paper is the combination of three writers have learned to complete all aspects of the theory of knowledge, including mechanical drawing, tolerance and cooperation, engineering mechanics, mechanical design, injection molding, engineering, materials, etc.; part of the proceeds by check the manual ; there are a small part of the exchange between the students and their three-year internship

summary.

Keywords: three plate, point gate, side core pulling

目录

1 绪论 ___________________________________________________ 5 1.1来源背景_____________________________________________ 6 1.2目的_________________________________________________ 6 1.3要求_________________________________________________ 6 1.4实际意义_____________________________________________ 6

1.5主要设计内容_________________________________________ 6

2 原始资料 _______________________________________________ 7 2.1塑料制品产量和生产要求_______________________________ 7 2.2塑料品种牌号_________________________________________ 7 2.3制品图样_____________________________________________ 7

2.3.1样品 _____________________________________________ 7

2.3.2. 尺寸及公差 ____________________________________ 7 2.4塑料制品的形状_______________________________________ 8 2.5塑料制品的壁厚_______________________________________ 8 2.6脱模斜度_____________________________________________ 8

2.7 塑料制品成型性能____________________________________ 8

3 基本参数 _______________________________________________ 8 3.1注射机选择___________________________________________ 8 3.2模具型腔数目的计算___________________________________ 9

3.2.1 计算原理 ______________________________________ 9

3.2.2 制品体积 _______________________________________ 9

3.3 模架选择_________________________________________ 9

4 成型零件尺寸及结构 ___________________________________ 11 4.1聚苯依稀的收缩率（S）_______________________________ 11 4.2 大型芯尺寸及结构设计______________________________ 11