（毕业论文 字数：5423 页数：13 带图纸 说明书 任务书 开题报告）摘要 介绍了笔类在日常生活中的应用,重点介绍了笔盖的模具设计过程
The summary introduced pen in the application in the daily life, the point introduced the molding tool of a cover design process

关键词 日常用品 模具设计 实用性 模具cad

目 录

1．引言 …………………………………………………………………………1
2．塑件分析，塑料成型特征工艺参数…………………………………………1
3．成型零部件的设计………………………………………………………………3
（1） 型芯尺寸的确立………………………………………………………3
（2） 型芯尺寸的确立…………………………………………………………4
（3） 按强度刚度条件计算…………………………………………………………4
4浇注系统的设计……………………………………………………………………4
（1）分型面的选择…………………………………………………………………5
（2）确定浇口形式及位置…………………………………………………………5
（3）设计主流道及分流道形状和尺寸……………………………………………5
（4）排气系统的设计………………………………………………………………6
（5）拉料杆的设计…………………………………………………………………6
5、结构零部件的设计………………………………………………………………7
（1） 支承板设计………………………………………………………………7
（2） 垫块的设计……………………………………………………………………7
（3） 合模导向机构的设计…………………………………………………………7
6推出机构的设计……………………………………………………………………7
（1）推杆的设计……………………………………………………………………8
（2）拉料杆的设计………………………………………………………………8
7 冷却系统的设计……………………………………………………………………8
（1）冷却回路尺寸的确定及布置…………………………………………………9
8.选择注射机型号………………………………………………………………9
9 结束语……………………………………………………………………………11
10 参考文献…………………………………………………………………………11

1引言
日用品，有时采用精度和强度不太高的塑料传动，由于塑料具有可塑性强，密度小、比强度高、结缘性、化学稳定性高、外观多样的特点，因而受到越来越多的厂家及人民的喜爱。塑料工业是新兴的工业，是随着石油工业的发展而应而生的，目前塑料制件几乎已经进入一切工业部门以及人民日常生活的各个领域。随着机械工业电子工业，航空工业、仪器仪表工业和日常用品工业的发展，塑料成型制件的需求量越来越多，质量要求也越来越高，这就要求成型塑件的模具的开发，设计制造的水平也须越来越高。本文也就对日用品中的笔盖模具设计过程进行阐述。
Daily necessity, sometimes adopt the not that high plastics of accuracy and strengths to spread to move, because the plastics has the plasticity strong, the density is small, higher than strength, the knot good luck, the chemistry stability is high, diverse characteristics of external appearance, as a result be subjected to more and more factories house and the people's fancies.The plastics industry is a newly arisen industry, is along with the development of the petroleum industry but should but living of, the plastics system piece almost have already entered each realm of the whole industry sections and people's daily lifes currently.Along with the machine industry electronics industry, aviation industry, the instrument appearance industry and usually the development of the thing industry, the plastics models the demand of make the piece more and more, the quantity request is also more and more high, this will beg model the piece of the development of the molding tool, the level of the design manufacturing also the beard is more and more high.This text also design the process to carry on elaborate to a cover molding tool.