注塑模具毕业设计---闹钟后盖注塑模的设计

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1、毕业设计（论文） 1 内容提要 塑料制品已在工业，农业，国防和日常生活中的方面得到广泛应用。特别是在电 子业中则为突出。电子产品的外客大部分是塑料制品，产品性能的提高要求高素质的 塑料模具和塑料性能。成型工艺和制品的设计。 塑料制品的成型方法很多。其主要用于是注射，挤出，压制，压铸和气压成型等 和气压成型等。而注射模，挤出约占成型总数的 60%以上。注射成型分为加料，熔融 塑料，注射制件冷却和制件脱模等五个步骤。当然如利用电气控制。可实现半自动化 或自动化作业。 塑料注射模主要用于热塑料制品的成型，已成功的用于成型热固塑性塑料制品， 它是塑料制品生产中十分重要的工艺装置。注射模的基本组成是：定

2、模机构，动模机 构，浇注系统，导向装置，顶出机构，芯机构，冷却和加热装置，排气系统。 因注射模成型的广泛适用，正是我这个设计的根本出发点。 毕业设计（论文） 2 Summary The plastics products to have already with daily life wait the aspect to acquire the extensive application at the industry, agriculture, national defense. Especially in the electronic industry then and particula

3、rly for outstanding. Electronics product that the outer shell spare parts that exaltation is mostly plastics function that request the high quantity. Type craft with product the design. The plastics products of the type method is a lot of. Among them most of inject, die-casting to compatibly press t

4、ype etc. But inject the mold, extrude, extrude roughly share type total amount of 60% above inject the type is divided in to add the material, meltdown plastics, and inject to make piece to cool off with make the piece to take off the mold to wait five steps. Certainly if make use off the electricity control. Can realize half auto or automatic homework Because inject the mold the types extensive suitable for use, exactly the basic point of departure of my this design. 毕业设计（论文） 3 前前 言言 光阴似梭，大学三年