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湖南经济管理专修学院毕业设计 手机外壳及其模具设计（男性）

目 录

1 引言??????????????????????????????????? 1 1.1 模具及塑料模具????????????????????????? 1 1.2现代模具制造技术的发展趋向???????????????? 3 1.3我国的模具工业??????????????????????????? 4 1.4 论文的选题背景和意义??????????????????????? 7

2 方案设计?????????????????????????????????? 8 2.1 直板手机外壳设计方案??????????????????????? 8 2.2 翻盖手机设计方案????????????????????????? 9

3 总体结构设计??????????????????????????? 9 3.1 塑件结构工艺分析与设计?????????????????????? 9

3.2 塑件的尺寸精度???????????????????????????? 10 4 注塑成型机的选择????????????????????????????? 12 4.1 注塑成型工艺简介??????????????????????????? 13 4.2 注塑机基本参数????????????????????????????? 14 4.3 注射机的选用?????????????????????????????? 15 4.4 锁模力校核??????????????????????????????? 16 4.5 注射容量校核?????????????????????????????? 16 4.6 注射模的结构组成???????????????????????????? 16 5 成型零件????????????????????????????????? 17 5.1 型腔数目的确定????????????????????????????? 17 5.2 型腔数量和位置的确定????????????????????????? 18 5.3 分型面的选择?????????????????????????????? 18 5.4 分型面的设计?????????????????????????????? 19 5.5 模架的选用与设计?????????????????????????? 20 5.6 定模板????????????????????????????????? 21 5.7 动模板????????????????????????????????? 21 5.8 定模座板???????????????????????????????? 22 5.9 动模座板???????????????????????????????? 23 5.10 推杆固定板?????????????????????????????? 23 6 装配??????????????????????????????????? 24 6.1装配基准????????????????????????????????? 24 6.2 模具镶块的装配????????????????????????????? 24 7 产品设计????????????????????????????????? 25 7.1模具设计????????????????????????????????? 25 7.2 模具加工???????????????????????????????? 26

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湖南经济管理专修学院毕业设计 手机外壳及其模具设计（男性）

8 浇注系统设计?????????????????????????? 27 8.1保证塑件的质量????????????????????????????? 27 8.2 浇口的设计????????????????????????????? 28 8.3 冷料穴设计??????????????????????????????? 29 9 合模导向与精定位机构设计???????????????????????? 29 9.1 导柱导向机构设计???????????????????????????? 30 9.2 复位装置的设计????????????????????????????? 33 10 模具的试模与修模?????????????????????????? 33 10.1试模?????????????????????????????????? 33 10.2 成型缺陷???????????????????????????????? 35 结 论??????????????????????????????????? 37 致 谢??????????????????????????????????? 38 参 考 文 献????????????????????????????????? 39

摘 要（注：需要图纸另行联系）

塑料是一种新型工程材料，发展速度迅猛，塑料的加工和成型工艺也越来越得到重视，其中注射成型是最常用的塑料零件成型方法。生活用品的塑料模具占了很大比例，在市场竞争白热化的今天，电器外壳设计成为产品质量的重要一环，最为突出和典型的就是手机，手机外壳注射模成为目前注射模制造行业最为复杂的模具之一，是手机结构件制造的难点。因此，研究手机外壳注射模具的设计制造，具有较高的生产实用价值。手机外壳外观要求很高，而且整机体积小、结构复杂，因而对注射成型模具和成型工艺的要求极高。手机外壳注射模设计制造的最大难点在于浇注系统、脱模机构。本课题来源于企业的生产实际，以大量的手机外壳注射模具设计制造为基础，根据多年从事注射模设计制造的经验，总结工厂的生产工程实践成果。研究手机外壳注射模具的整体结构设计，浇注系统中浇道、浇口的形式、位置选择，排溢系统的设计，塑件主要部位的脱模推出方式，以及制造方法和工艺要点。结合面盖和镜片两个有代表性的塑件实例，以工厂实用为原则，详细介绍了实际设计制造的方法和关键点。如何提高模具质量，保证塑料产品的成型要求，在文中也作了叙述，并列出了实际生产中塑件可能出现缺陷的原因以及解决方法。其中，尺寸、数据和机械结构均来自工厂的实际图纸。

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湖南经济管理专修学院毕业设计 手机外壳及其模具设计（男性）

关键词:注射模;模具设计制造;浇注系统;脱模机构;手机外壳成型

The plastic injection modle design of heart shape lampe

Abstract:

Plastic is a new kind of engineering materials, the rapid pace of development, plastics processing and forming technology has become increasingly Attention, of which injection molding is the most commonly used method of molding plastic parts. Supplies accounted for the plastic mold A large proportion of the market competition today, shell design of electrical products an important part of quality, The most prominent and is a typical mobile phone, cell phone shell Injection Mold Injection Mold has become the most complex manufacturing industries .One of the mold is created phones structural difficulties. Therefore, the study of cell phone shell injection mold design system.Made of high practical value of production. Demanding the appearance of mobile phone casings, and small machine, the structure of complex molds for injection molding .And forming a highly demanding process. Mobile phone shell injection mold design and manufacture of the most difficult of the gating system is off .Mode institutions. The issue stems from the actual production to a large number of mobile phone case design and manufacture of injection molds for the The basis of injection mold based on many years experience in the design and manufacture, summing up the production plant the results of the engineering practice. Research Mobile phone case study of the overall structure of the injection mold design, gating system in the sprue, gate form, location choice, Row overflow system design, plastic parts demoulding main launch site, as well as manufacturing methods and process points. Knot .All face the lens cover and two representative examples of the plastic parts to the factory for the principle of practical, detailed information on the actual set of manufacturing methods and key points. How to improve the quality of mold, the molding of plastic products to ensure that the requirements in the text.Also described, and a list of the actual production of plastic parts may be the reasons for defects and

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