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电子表 外壳 注塑 模具设计 手表 25 CAD 图纸 PDF

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XXXX毕业设计说明书电子表外壳注塑模具设计摘要 本文首先分析了塑料模具的发展趋势，重点介绍了外侧抽芯结构和内侧抽芯机构。然后分析电子表壳塑件的结构特点，介绍了电子表壳体注射模结构的设计方法及模具的工作过程，以及模具设计的具体步骤和过程，并且对各个设计过程做了必要的理论说明,分析和阐述了模具零件的选材、强度和刚度的校核，电子表外壳的外侧孔采用斜导柱和斜滑块抽芯的设计方法，内凹坑采用三块式内侧抽芯机构，以及脱模机构和冷却系统的设计。关键词 电子表外壳，注塑模，外侧抽芯，内侧抽芯Design On Injection Mould Of Electronic Watch ShellAbstract This text has analyzed the development trend of the plastic mould at first, focused on the outer core-pulling and medial core-pulling. Then analyzed the features of electronic watch shell plastic, introduced the design method of injection mould structure and the work process of the molding together with concrete steps and processes of mould design. This text also showed all the processes of mould design and made necessary theory instruction for every design process, analyzed and elaborated the selecting material for mould parts and the calculation of strength ang stiffness. The design method of the outside hole adopted guide pin and slide taking out core, the inside hole adopted 3-type core-pulling mechanism, and showed the design of demoulding mechanism and cooling system.Key words Electronic watch shell