弧形牙刷架模具设计 毕业设计.doc

摘要 PAGE 40 PAGE 39 PAGE 1 本科毕业设计（ 论文 ） 题 目：弧形牙刷架模具设计 学 号：　　094812998　 　 姓 名：　　　 班 级：　　 09机自A4 专 业：机械工程及自动化　 学 院：　机电工程学院 入学时间：　　　2009级 指导教师：　　　 　 日 期： 2013年5 月 15日 弧形牙刷架模具设计 摘 要 本文主要介绍了弧形牙刷架注塑模设计。注塑模设计的主要过程有：塑料制品的工艺分析，型腔数目的确定，注塑机的选择以及模具的结构设计。弧形牙刷架注塑模的结构采用一模两腔形式，文中对模具的各部分零件进行了详细设计与计算，主要包括：浇注系统的设计，成型零件设计，导向机构设计，脱模机构设计，冷却机构设计以及排气系统设计。由于电器防尘板的结构简单，本套模具是通过推杆顶出，保证顺利脱模。 本次毕业设计课题来源于生活，应用广泛，采用Pro/E来实现三维设计及模具成型零件设计，运用Moldflow分析制件的成型质量，再实现模架的装配，并在产品设计及模具装配过程中，辅助以必要的理论计算，可以大大缩短产品研发周期、模具设计周期，提高产品设计及模具设计的准确性、产品成型质量，降低产品研发、模具设计成本。模具精度满足设计要求，动、定模开合运动平稳，导向准确，无卡阻、咬死或刮伤现象，保证了成形制品的质量。本次毕业设计的结果也可应用于其它产品的注塑模设计。 关键词：弧形牙刷架，注塑模设计，模具装配 Arc tooth brush holder mold design ABSTRACT This paper describes a curved toothbrush holder injection mold design . Injection mold design process : the structural design of plastic products, process analysis, determination of the number of cavities , the choice of the injection molding machine and mold . Curved toothbrush holder injection mold structure using a two cavities form , detail design and calculation of the various parts of the mold , including: gating system design, the design of the molded parts , the design of the guide mechanism , pulling mechanism design , cooling mechanism design and the design of the exhaust system . Due to the simple structure of the electrical dust board , the molds are putting top to ensure smooth ejection . The graduation design task originates from life, wide application,With Pro/Engineer to implement three-dimensional design of the dustproof buckle cover and the design of molding parts ,and shaping quality of part was analyzed by Mold-flow, then accomplish the assemblage of the mold with the assistance of essential theory calculate mixed with computer-aided design. It would not only shorten the cycle of product research and mold design, and improve the preciseness and the product shaping quality, but also lower the cost of the research. Having made the rational craf