塑料口杯盖的注塑模具设计

塑料口杯盖的注塑模具设计

摘要

众所周知随着社会的发展，我国加工工业发展迅速。塑料制品在工业、农业、军事领域得到广泛的应用。塑料制品的生产研究与开发应用受到了工业的普遍重视，因此注塑模具的设计、制造技术也随之不断提高。为此对塑料制品的设计水平的要求也越来越高。注塑模具是在模具中注射熔融塑料并冷却成型出塑料制品的一种模具。注塑模具的设计是在传统模具的设计与制造的基础上进行的，按照注塑模具的设计流程对注塑模具进行深入地学习研究，进而加强对模具知识的了解和机械产品的设计能力。在注塑模具设计的过程中，不仅要研究设计出的产品是否能生产出合格的塑料制品—塑料口杯盖，同时也要注意降低成本费用和模具生产加工中的实用性、合理性，所以在设计的过程中不仅要正确地应用理论知识，同时也要注重理论与实际加工中的差异，以便于在实际生产中的加工制造，并降低制造费用，提高经济效益。因此只有通过深入的研究才能设计出符合实际要求的注塑模具。

关键词：塑料口杯盖、注塑、成型、模具、设计

ABSTRACT

As we all known, with the development of society, China's processing industry is developing rapidly. Plastic products for industrial, agricultural, military widely used. Plastic products industry in research and development applications received widespread attention, so the plastic film with the design, manufacturing technology has continued to increase. To this end the design of plastic products have become more sophisticated level. Injection mold design is in the traditional mold design and manufacturing on the basis, in accordance with the design of injection molds for injection molding process for in-depth study and research, thereby enhancing understanding and knowledge of mold design capacity of mechanical products. In injection mold design process, not only to study the design of the product is able to produce qualified products, but also pay attention to the cost of design and production and processing of the practical, reasonable, so not only in the design process To properly apply the theoretical knowledge, but also focus on theoretical and practical differences in processing, so that actual production in manufacturing, and reduce manufacturing costs, increase economic efficiency. Therefore, only through a comprehensive thinking to design a realistic requirements of the mold.

KEY WORDS: Plastic cup lid、Injection 、Forming、mold、design

目录

摘要 (2)

前言 (6)

1塑件的公艺性分析 (7)

1.1塑件的原材料分析 (7)

1.2塑件的尺寸精度分析 (7)

1.3塑件的表面质量分析 (8)

1.4塑件的结构工艺性分析 (8)

2成型设备的选择与工艺参数的确定 (10)

2.1三维建模确定塑件体积和质量 (10)

2.2确定成型工艺参数 (10)

3注塑工艺分析及注射模的结构设计 (12)

3.1浇口位置的选择 (12)

3.2分型面的选择 (12)

3.3型腔数目的确定及型腔的布置 (13)

3.4浇注系统的设计 (14)

3.5模具型芯和型腔的结构设计 (17)

3.6冷料穴和拉料杆的结构设计 (17)

3.7顶出结构的设计 (18)

3.8标准模架的选择 (19)

4注射模设计的有关尺寸计算 (20)

4.1成型零件尺寸的计算 (20)

4.2型腔壁厚的计算 (23)

5注射模有关参数的校核 (25)

5.1型腔数量的校核 (25)

5.2注塑压力的校核 (25)

5.3锁模力的校核 (25)

5.4模具与注射机装模部位的校核 (26)

5.4.1注塑机喷嘴头的球面直径的校核 (26)

5.4.2模具动定模模板尺寸的校核 (26)

5.5开模行程与塑件推出距离的校核 (27)

6模温调节与冷却系统设计 (28)

6.1冷却系统的设计 (28)

6.2加热装置的分析 (29)

7模具材料的选择 (30)

8模具的装配流程及工作原理 (31)

9模具的常见故障分析 (32)

10模具装配图 (33)

设计小结 (37)

致谢 (38)

参考文献 (39)