分油管斜槽式抽芯注射模设计与制造

分油管斜槽式抽芯注射模设计与制造(论文说明书9100字,CAD图12张)       
摘   要
注射成型是一个将熔融的塑料压入模具型腔的过程。一旦塑料冷却，塑料件即可脱模。注射成型是用于制造零件一种比较新的方法，它主要包括六个步骤，即锁模、注射、保压、冷却、开模以及脱模。
由于成型效率较高而可大批量生产、可成型各种不同使用性能的热塑性材料、可成型带有螺纹、侧向凹陷和侧孔的塑件以及较大的薄壁件等诸多优点，注塑模已广泛用于生产各种塑件。
注射模技术的持续发展对设备的要求越来越高。注塑模具的合理设计是注塑成败的关键。一般来说，高效生产注塑成型件主要取决于注塑模具，而模具的耐用性则取决于日常的维护和保养。
分析了周向带有12 个出油孔的分油管的工艺特点，介绍了成型该塑件的注射模结构及其周向斜槽式抽芯结构，阐述了模具的工作过程和模具设计与制造中应注意的问题。
本文的主要内容包括：塑件的工艺性分析；成型设备的选择；塑料模设计、零件尺寸计算以及模具主要零件加工工艺规程的编制等。

Abstract
Injection molding is the process of forcing melted plastic into a mold cavity. Once the plastic has cooled, the part can be ejected. It is a relatively new way to manufacture parts. There are six major steps in the injection molding process, i.e, clamping mold, injection, dwelling, cooling, mold opening and ejection.
Nowadays, injection molding has been used to produce plastic parts widely, for its such advantages as high molding efficiency possible for mass-production, wide choice of thermoplastic materials providing a variety of useful properties as well as possible to mold threads, undercuts, side holes, and large thin sections.
The continuous development of injection molding technology demands injection machine. The most important problem in the process of injection molding is undoubtedly the correct design of the injection mold. Generally, efficient production of injection molded parts depends primarily on the injection mold. However, durability of the molds is determined by their daily care and treatment.         
Analyzed the structure characterostics of the branch pipe-line with circumference 12 hole, introduced the injection mold structure and circumference flume core –pulling mechanism,elaborated mold's work process and problems that mold design and the manufacture should pay attention to.
The main contents of this paper are following: processing analysis of plastic part, selection of injection machine, mould design, calculation of part dimension and scheduling of technological process of the main parts.

Key words
circumference core-pulling；guide pin；injection mold

 

目   录
摘   要    II
Abstract    III
引  言    1
1、选题背景、研究意义及文献综述    2
1.1 选题背景    2
1.2 研究意义    2
1.3 我国塑料模的现状    2
2、塑件的工艺性分析    4
2.1 塑件的原材料分析    4
2.2 塑件的尺寸精度分析    6
2.3 塑件表面质量分析    6
2.4 塑件的结构工艺性分析    6
3、确定成型设备选择与模塑工艺规程编制    6
3.1 计算塑件的体积和重量    6
3.2 确定成型工艺参数    7
4、注射模的结构设计    9
4.1 分型面的选择    9
4.2 型腔数目的确定及型腔的排列    9
4.3 浇注系统的设计    10
4.4 型芯与型腔的结构设计    12
4.5 推出方式的选择    12
4.6圆周侧向分型与抽芯机构的设计    12
4.7 模架的选择    12
5、注射模设计的有关尺寸计算    13
5.1 零件尺寸的计算    13
5.2 转盘机构零件尺寸的计算    13
5.3 模具零件的设计    14
6、注射机有关参数的校核    17
6.1 闭合高度的确定和校核    17
6.2 开模行程的校核    17
7、注射模主要零件加工工艺规程的编制    18
7.1 型腔固定板的加工工艺过程    18
7.2 浇口套的加工工艺过程    19
设计总结    20
致  谢    21
参考文献    22