摘  要

模具生产技术水平的高低，已成为衡量一个国家产品制造水平高低的重要标志。塑料工业的飞速发展，对注塑模具的设计与生产提出了质量好、制造精度高、研发周期短等越来越高的要求，能否适应这种需求已成为模具生产企业发展的关键因素。模具技术是融合机械工程、计算机应用、自动控制、数控技术等学科为一体的综合性学科。
本文中针对SD卡读卡器下盖体注射模具制定出合理的设计结构，其中包括成型部分及其零部件设计，浇注系统设计，脱模机构设计，冷却系统设计等。根据分析，设计了一套塑料注射模具，并对模具以及主要零件进行了CAD绘图。
关键字：注射模具，浇注系统，脱模机构，冷却系统
Abstract

Mold production technology of level, has become an important symbol to measure the level of a national manufacturing products. The rapid development of the plastics industry, put forward the good quality, high manufacturing precision, short development cycle, higher and higher requirements of injection mold design and production, can adapt to this demand has become the key factor in the development of mold manufacturing enterprises. Mould technology is a comprehensive subject integration of mechanical engineering, computer application, automatic control, numerical control technology and other disciplines as a whole.
This paper aimed at the counter base injection mold making a reasonable design structure, including molding parts and components design, gating system design, demould mechanism design, cooling system design. According to the analysis, a set of plastic injection mold design, the mold and the main parts of the CAD drawing.
Keywords: ejection mechanism of injection mould, gating system, cooling system,