手机电池充电器外壳注塑模模具设计.doc

摘 要 在信息化日益发达的今天，手机从之前的奢侈品变成了大众化的日常用品，而且成了生活的必需品。而手机充电器，更是与之配套的不可或缺的。所以，本设计从日常生活出发，选择了手机充电器注塑模模具设计这个课题。在结合实际的基础上，分析了手机充电器结构的工艺特点，介绍了手机充电器外壳上盖注射模结构及模具的工作过程。重点介绍了手机充电器外壳注射模结构的设计思想和方法。分析和阐述了模具型芯零件及各标准件的选材、热处理工艺，手机充电器外壳的塑件的结构要素，塑件的尺寸公差和精度的选择，塑件的体积和质量的计算方法，注射机的选择和校核，脱模推出机构的设计和相关计算，抽芯机构的设计计算以及校核，成型零件的工作尺寸的计算，以及模具冷却系统的设计。此手机充电器外壳注射模设计的结构特点是点浇口形式的单分型面的注射模，模具采用一模两腔的结构，两塑件平行放置，方向相反以便侧向抽芯。仪用热流道，可以消除废料的产生，但流道过长加热较复杂，而且ABS塑料流动性较好易产生涎流现象，改用PP等其它符合热流道的塑料，不仅塑性能不能满足制件功能要求，而且增加生产成本。本设计采用嵌入式型腔结构。该结构广泛应用于中小型塑件的模具中。加工方法可采用普通机加工、数控机床、电火花、电铸成型等方法。将一个整体型腔嵌入到型腔固定板中，嵌入的型腔材料可用低碳钢或低碳合金钢，渗碳淬火后抛光。该模具结构设计巧妙，降低了生产中操作的复杂性，延长了模具使用寿命，塑件达到国家相关部门所规定的技术要求。并且在很大程度上实现了生产的自动化，便于提高生产管理，提高了生产效率。 关键词：手机充电器外壳；注射模；型芯；型腔 Abstract Today, the world is becoming more and more informatization, mobile phones became popular the daily from the luxury articlesintroduced before, and became the necessities of life . And phone chargers, becomes necessary.The handset battery charger outer covering top head injection mold structure and the mold work process. Introduced the handset battery charger outer covering injection mold structure design method with emphasis. Analyzed and elaborated the mold core components selection, the heat treatment craft, the handset battery charger outer covering model the member, model the size common difference and the precision choice, model a volume and the quality computational method. This handset battery charger outer covering injection mold designs the unique feature is the runner form three minute profiles injection molds, is lateral pulls out the coreinjection mold. Forming part of the calculation of the size and mold cooling system design. This cell phone charger shell injection mold design of the structure is characterized by the form of points runner-alone surface of the injection mold. Die using a two-cavity structure, two pieces of plastic placed parallel direction opposite to the lateral extracting core. Instrument Hot Runner and eliminate waste, but the excessive heat fl