盒盖注塑模具设计说明书

河北工程大学科信学院

毕业设计（论文）题目：盒盖注塑模具设计

姓名王晓东

学号*********

专业材料成型及控制工程

年级08 级

指导教师李丽

摘要

本课题主要是针对盒盖的模具设计,通过对塑件进行工艺的分析和比较,最终设计出一副注塑模。该课题从产品结构工艺性，具体模具结构出发，对模具的浇注系统、模具成型部分的结构、顶出系统、冷却系统、注塑机的选择及有关参数的校核、都有详细的设计，同时并简单的编制了模具的加工工艺。通过整个设计过程表明该模具能够达到此塑件所要求的加工工艺。根据题目设计的主要任务是盒盖注塑模具的设计。也就是设计一副注塑模具来生产盒盖塑件产品，以实现自动化提高产量。针对盒盖的具体结构，该模具是点浇口的双分型面注射模具。由于塑件内侧有四个小凸台，直接顶出，固采用斜推杆的结构形式。其优点在于简化机构，使模具外形缩小，大大降低了模具的制造成本。通过模具设计表明该模具能达到盒盖的质量和加工工艺要求。

关键词：塑料盒盖; 盒盖塑件注射模具；模具；

Abstract

This topic is mainly aimed at the lid mold design, through to the plastic parts for process analysis and comparison, the final design out a pair of injection mold. This subject from product structure, and the specific property of the mould structure, mould pouring system, die forming part of the structure and ejector system, cooling system, the injection molding machine selection and related parameters of checking, a detailed design, at the same time and simple compiled the mould processing technology. Through the whole design process shows that the mold can achieve the required plastics processing technology. According to the topic design is the main task of the injection mould design the lid. Also is a pair of injection mold design to production of plastics products, with the lid to realize automation to increase production. According to the specific structure, the lid of the die is the point of the gate double parting surface injection mold. Because plastic parts inside there are four small convex platform, the direct roof, the structure of the push rod solid form. Its advantage is that simplifying the mechanism, make the mould shape narrowed, and greatly reduce the mould manufacturing cost. Through the die design shows that the mold can achieve the lid of the quality and processing technology requirements.

Key word：Plastic box cover; the box cover injection mold; mold.

目录

摘要 (1)

Abstract (2)

第一章绪论 (5)

1.1当前模具设计发展趋势 (5)

1.2本次模具课程设计的任务 (5)

第二章塑件成型工艺性分析 (6)

2.1塑件的分析 (6)

2.2聚苯乙烯(PS)的性能分析 (7)

2.3 PS的注射成型过程及工艺参数 (8)

第三章初选注塑机规格 (11)

3.1注射机型号的确定 (11)

3.2注射机的相关参数的校核 (12)

第四章分型面和型腔数目选择 (14)

4.1分型面位置的选择和确定 (14)

4.2型腔数目的确定 (15)

第五章浇注系统的设计 (16)

5.1主流道的设计 (16)

5.2浇口的设计 (17)

第六章型腔型芯设计 (19)

6.1成型零件的结构设计 (19)

6.2 型芯和型腔的加工工艺卡、工序卡 (23)

第七章模架的确定 (25)

7.1模架的选择 (25)

7.2模架各尺寸的校核 (26)

第八章导向与脱模机构的设计 (28)

8.1导向定位机构的设计 (28)

第九章温度调节与排气系统的设计 (28)

9.1温度调节系统设计 (29)

9.2排气系统设计 (30)

结论 (31)

参考文献 (32)

致谢 (34)