摘  要
 
塑料注射模是成型塑料的一种重要工艺。通过对充电器外壳注射模具设计,能够基本地、全面地了解注射模具设计的基本原则、方法。在模具结构设计过程中，我大胆尝试提出各种不一样的成型的方案，并与老师探讨对方案进行了比较。在比较的过程中，发现大量的问题，也了解模具设计的要求和基本原则，最后在查阅大量书籍的帮助下完成没一个数据的选择。在设计中分析了常用日用品充电器的工艺特性，并介绍了ABS材料成型工艺特点、成型过程、开模过程以及成型后加工工艺。同时，分析了模具结构与计算，掌握如何设计一个完整的模具生产结构。通过本次设计，能较为熟练的使用Auto-CAD、Pro-E等软件进行模具辅助设计,提高自己的计算机绘图能力。本次毕业设计充分地为今后从事模具设计行业打下了扎实的基础。
本次主要设计是对充电器外壳注射模的设计, 重点对塑件的成型原理、材料的选用和注射技术进行分析。通过前期指导老师安排的任务，我先对任务书进行了分析了解，并查阅了大量的书籍、手册和文献，对模具有了一定的了解并且清楚自己的所要完成的任务量。进过对ABS充电器的了解，要满足制品大批量生产、高精度、外形复杂等要求，我首先主要把时间花费在确定所需的模塑成型方案、制品的后加工、分型面的选择、型腔的数目和排列、成型零件的结构等。既然以实际生产为目的，设计就要涵盖了注塑模具的主要系统包括有注射机、浇注系统、排气系统、冷却系统、顶出系统、导向系统等。对于要实际生产的模具，我们考虑的东西还有很多，为此我积极询问我的指导老师关于现实工厂中模具的生产过程及可能遇到的问题。设计时，尝试使用了侧向抽芯机构，增加模具的复杂性以及实用性。设计时参考了以往注射模具的设计经验，并结合制品的实际要求，通过简化设计结构、优化各个系统性能，尽最大限度实现美观、实用性高、长的使用寿命、短的生产周期和良好的经济性能。
关键词：塑料注射模；充电器外壳；计算机绘图
Abstract

Injection molding is an important molding plastics. Through the design of the injection mould for the charger shell, can basically, a comprehensive understanding of the basic principles, methods of injection mold design. In the mold structural design process, I attempt to put forward a variety of different forming schemes, and the schemes are compared with the teacher discussion. In the comparison process, found a lot of problems, but also understand the mold design requirements and basic principles, finally finish without a data selection in access to a large number of books to help. In the analysis of the design process characteristics of common commodity charger, and introduces the technology characteristics, forming ABS material molding process, mold and molding process. At the same time, analyzed the mold structure and calculation, master the design of a complete mold to produce structure. Through this design, can be more skilled use of Auto-CAD, Pro-E and other software mold aided design, improve the ability of computer drawing their own. This graduation design is fully engaged in mold design industry for the future lay a solid foundation.
The main design is the design of injection mold for the shell of charger, focuses on the analysis of plastic molding principle, material selection and injection technology. The teacher assigned task, I would first of task were analyzed to understand, and access to a large number of books, manuals and documentation, to mold a certain understanding and clear the task completed their. In the ABS charger understanding, to meet the product mass production, high precision, complex shape and other requirements, I first time spent in the molding, products after processing, the selection of parting surface, cavity number and arrangement, forming part of the structure. Since the actual production, designed to cover the main system of injection mold include injection machine, casting system, exhaust system, cooling system, ejector system, guiding system. For mold to the actual production, there are many we consider something, so I actively ask may meet the production process and my teacher about the real factory mold problems. Design, try to use the side core pulling mechanism, increase the mould complexity and practicability. A reference to the design of the injection mould design experience, combined with the actual requirements of products, through the simplification and optimization of each system performance, structure design, to maximize the realization of beautiful appearance, high practicality, long service life, short production cycle and good economic performance.
 
Key words：Injection mould for plastic；The charger shell；computer graphics