模具毕业设计103注射模的结构设计

摘要

随着塑料工业的发展，塑料注射模已经成为制造塑料制品的主要手段之一。本文主要介绍了塑料注射模设计的方法及过程。首先，介绍了塑料注射模设计与制造在社会发展过程中所处的地位和作用，并对塑料制品（汽车烟灰缸盖）的结构进行了分析和适当的修改，然后介绍了塑料注射模具的具体设计过程。具体设计内容包括：注射机型号的选择、分型面的确定、抽芯机构及顶出机构设计、成型零部件的设计、浇注系统、冷却系统和复位系统的设计，此外，还对塑料注射模其他零部件进行了简单的设计。最后阐述了完成此次设计之后的心得，并对以后的模具设计思路提出了自己的见解和看法。

关键词：注射模设计模具塑料

Abstract

With the development of the plastic industry, the plastic injecting mold has already become one of the mainly ways of making the plastic ware. This paper mainly introduces the method and the process of the injecting mold designing. First, It has introduced the position and function in the developing society of the plastic injecting mold’s making and designing, and analysied the structure of the plastic product ,and also modified some parts of the structure .Next, this paper introduce the concrete process of the plastic mold’s designing. according to the actual designing plastic, carried on the analysis and modifications of the plastic product’s structure craft, the next chapter introduced the concrete design process of the plastic injecting mold.The injecting machine was chosen according to the product’s weight,the face was chosen according to the structure of the plastics and model the type of cent of the craft、taking out the organization of core and the outing organizations、noting system、cooling system and resetting the system to carry on the detailed design towards modeling zero parts and sprinkling at the same time。In addition, return to design of plastics injected other zero parts of mold to carry on the simple design, the insight was elaborating in the end of the paper, and the later designing way of the injecting mold was put forward my views and viewpoints.

Key words: injecting mold design mold plastic

目录

摘要 ................................................................................................................. I ABSTRACT .................................................................................................. II 第1章绪论.. (6)

1.1塑料及塑料工业的发展情况 (6)

1.2选题的依据和背景 (6)

1.3塑料模国内的发展状况 (6)

1.4塑料模国外的发展状况 (7)

1.5未来的发展趋势 (7)

1.6毕业设计内容概述 (7)

1.7本章小结 (7)

第2章整体方案论证 (8)

2.1产品分析 (8)

2.1.1产品名称及图样 (8)

2.1.2产品结构分析 (8)

2.1.3产品材料的性能和成型条件 (9)

2.2模具设计方案的选择 (10)

2.2.1基本模架的选择 (10)

2.2.2凹模结构方案选择 (10)

2.2.3凸模结构方案选择 (11)

2.3注射机的选择 (11)

2.3.1注射机类型的选择 (11)

2.3.2注射机型号的确定 (11)

2.4模具总体结构设计 (12)

2.4.1分型面的选择 (12)

2.4.2型腔数的确定 (13)

2.4.3型腔、型芯和抽芯机构的设计将会在以下章节详细介

绍。13

2.5本章小结 (13)

第3章注射模的结构设计 (13)

3.1成型部分的设计 (14)

3.1.1凹模的结构设计 (14)

3.1.2凸模的结构设计 (18)

3.1.3凹模、凸模材料的选择及粗糙度要 (21)

3.2浇注系统的设计 (21)

3.2.1浇注系统的组成： (21)

3.2.2主流道的设计 (22)

3.2.3分流道的设计 (23)

3.2.4浇口的设计 (24)

3.2.5冷料穴的设计 (25)

3.3排溢引气系统设计 (27)

3.3.1排溢系统设计 (27)

3.3.2引气系统的设计 (27)

3.4冷却系统的设计 (28)

3.4.1模具的冷却： (28)

3.4.2冷却装置设计注意事项 (28)

3.4.3冷却装置的形式 (28)

3.4.4冷却装置的理论的计算 (29)

3.4.5冷却系统的其他零部件 (31)

3.5脱模机构的设计 (31)

3.5.1顶杆脱模机构的设计 (32)

3.5.2抽芯机构的设计 (34)

3.6复位系统的设计 (40)

3.7其它零部件设计 (41)

3.7.1导向元件的设计 (41)

3.7.2顶杆的导柱设计 (42)

3.7.3限位钉 (43)