手机充电器外壳模具毕业设计

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1、 摘 要 分析了手机充电器外壳的工艺特点，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方法。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

2、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，操作方便，使用寿命长，塑件达到技术要求。 关键词： 手机充电器外壳，注射模，型芯，型腔 中原工学院信息商务学院毕业论文（设计） Mobile phone charger tooling design Abstract Has analyzed the handset battery charger outer covering craft characteristic, introduced the handset battery charger outer covering top head inject

3、ion mold structure and the mold work process. Introduced the handset battery charger outer covering injection mold structure design method with emphasis. This cell phone charger shell injection mold design of the structure is characterized by the form of points runner-alone surface of the injection

4、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 flow is more complicated, ABS plastics and better mobility easy to produce saliva flow, and other use of

5、PP with Hot Runner of plastic, Not only plastic component performance can not meet the functional requirements, and an increase in production costs. Embedded design using thecavity structure. The structure widely used in small and medium-sized plastic parts mold. Processing methods use ordinary mach

6、ine, CNC machine tools, EDM, LIGA methods. Will be embedded in a cavity of a whole cavity plate, embedded in the cavity material available low-carbon or low alloy steel, carburizing quenching after polishing. After production confirmation, this mold structural design ingenious, the ease of operation, the service life is long, models to achieve the specification. Key words： handset battery charger outer covering injection mold slide core