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 1
1.1 塑料及塑料工业的发展情况 1
1.2 选题的依据和背景 1
1.3 塑料模国内的发展状况 1
1.4 塑料模国外的发展状况 2
1.5 未来的发展趋势 2
1.6 毕业设计内容概述 2
第2章 整体方案论证 3
2.1 产品分析 3
2.1.1 产品名称及图样 3
2.1.2 产品结构分析 3
2.1.3 产品材料的性能 4
2.2 模具设计方案的选择 4
2.2.1 注射模基本模架的选择 5
2.2.2 凹模结构方案选择 5
2.2.3 凸模的结构方案的选择 6
2.2.4 拉料杆的结构方案选择 6
2.3 注射机的选择 7
2.3.1 注射机类型的选择 7
2.3.2 注射机型号的确定 7
2.4 模具总体结构设计 9
2.4.1 分型面的选择 9
2.4.2 型腔数的确定 9
2.4.3 型腔的设计 10
2.4.4 型芯的设计 10
2.4.5 抽芯机构的设计 10
2.5 本章小结 10
第3章 注射模的结构设计 11
3.1 成型部分的设计 11
3.1.1 凹模的结构设计 11
3.1.2 凸模的结构设计 21
3.2 浇注系统的设计 34
3.2.1 主流道的设计 35
3.2.2 分流道的设计 36
3.2.3 浇口的设计 37
3.2.4 冷料穴的设计 39
3.3 排溢引气系统设计 39
3.3.1 排溢系统设计 39
3.3.2 引气系统的设计 40
3.4 冷却系统的设计 40
3.4.1 冷却装置的理论计算 40
3.4.2 冷却装置基本形式的选择 42
3.4.3 冷却系统的其他零部件 43
3.5 脱模机构的设计 43
3.5.1 顶杆脱模机构的设计 44
3.5.2 成型活动镶块顶出脱模机构的设计 45
3.5.3 抽芯机构的设计 46
3.5.4 拉料杆的设计 51
3.6 复位系统的设计 52
3.6.1 各部分尺寸确定 53
3.6.2 材料的选择及配合公差的确定 53
3.7 其它零部件设计 53
3.7.1 导向元件的设计 53
3.7.2 顶杆的导柱设计 54
3.7.3 限位钉 55
3.7.4 垫块的设计 55
3.7.5 动模座板及定模座板的设计 56
总结 57
致谢 58
参考文献 59
