毕业论文：《热水壶外壳塑料模具设计》.docVIP

塑料水壶外壳注塑模设计 专业：材料成型机控制工程 学号： 学生姓名： 指导老师： 摘要 本课题主要是针对塑料水壶外壳的模具设计。塑料水壶外壳具有质量轻、易于清洁、强度高、使用寿命长、价格低廉、制品美观等特点。通过对塑件进行工艺分析和比较，根据制品的性能及特点，最终设计出一副注塑模。该课题从产品结构工艺性、具体模具结构特点出发，对产品的三维造型，分型面，模具的浇注系统、其成型部分的结构、冷却系统、脱模机构，注塑机的选择及有关参数的校核都有详细的设计，同时简单的说明了该模具的加工工艺。通过整个设计过程表明此模具能够达到塑件所要求的加工工艺。 依据产品的数量和塑料的工艺性能确定塑件采用注塑成型法生产。该产品设计为大量批准生产，故设计的模具要求有较高的注塑效率，浇注系统要能够自动脱模，依据产品结构特征采用侧浇口，因此选用大水口模架，侧浇口自动脱模结构。模具采用一模一腔布置，浇注系统采用侧浇口成型，由六推杆推出机构完成塑件的推出。考虑到产品结构等因素，采用循环冷却系统对制件进行冷却。 关键词：注塑模具； 塑料水壶外壳；聚丙烯 mold design for the plastic kettle shell Abstract The main topic is covred in mold design for the plastic kettle shell with a light weight，easy to clean, high strength , long service life, low prices, good apperance quality and so on . Through the process of plastic parts for analysis and comparison, in the light of the performance and feature of the product, we design an injection mold finally. Process from the product structure of the project, specific mold structure starting on the casting mold system, there are detialed design wit,h the thre-dimensional modeling, binary type surface, gating system, the mould stucture, cooling system, demoulding mechanism, the choice of the injection molding machine, and the check of some related parameter, and introduce the mold processes simply. Through the entire design process that can be achieved in the mold plastic parts required in this process. Based on the volume and determine the process performance of plastic injection molding method using plastic parts production. The product is desighned for mass production, so the design of the mold requires a high injection efficiency, and the gating system to be able to automatic mold ejection., in addition to use site gate according to product structural feature, so we choose a single sub serface injection mold, site gate automatic ejection structure. Mold cavity one-cavity mold, gating system using site gate forming, introdued extrusion device to complete sixth putting the introduction of plastic p