临沂大学机械工程学院2014届本科毕业设计
2014届 分 类 号:
单位代码:10452
毕业论文（设计）
电动剃须刀外壳模具设计论文
姓 名
史为品 学 号 201203910842 年 级 2012
专 业
机械设计制造及其自动化 系 （院）
机械工程学院 指导教师 麻晓飞
2014年2月25日
摘 要
近年来，小家电在不断地渗透进我们的生活，在用细节改变着我们的生活品质。 较之从前外观单调、性能单一的剃须刀产品，今日剃须刀在高科技氛围下的它又呈现出了一番新天地：延长使用寿命；防漏水系统和自动安全全身水洗，安全可靠；人性化设计和自动清洗装置也令剃须刀更长久耐用。在外形上，新款电动剃须刀更具流行曲线，显得灵便轻巧；外观的色泽丰富多变，综合体现了电动剃须刀好用又好看的流行风格。本文在用Pro-E软件对电动剃须刀零件进行分析，该分析主要目的是在分析成型工艺合理性的同时，优化型腔布局形式，根据分析结果确定合理的成型工艺和较好的型腔布局形式。本文后面着重介绍了塑件的工艺性分析、分型面的确定、浇注系统的设计、排气系统、导向与定位机构、脱模机构、侧向分型抽芯系统的设计、成型零件的设计、标准模架选择、温度调节系统、各参数的校核等。
关键词：剃须刀外壳；软件分析；注塑成型；模具设计
临沂大学机械工程学院2014届本科毕业设计
ABSTRACT
In recent years, small household electrical appliances in the continuously infiltrated into our life, changing with the details in our life quality. Compared with previous monoton-ous appearance, performance of single razor razor products,today in the high-tech atmosph-ere, it presents a new world: to extend the service life; anti Water Leakage system andautomatic safety body wash, safe and reliable; humanized design and automatic cleaning device also makes the shaveris more durable. In appearance, the new electric shavers more popular curve, isflexible and lightweight; the appearance of the color is rich and changeful,comprehensive reflection of the electric shaver with popular style and good-looking. The use of Pro-E software for electric shavers parts to carry on the analysis, the main purpose of this analysis is the analysis and process rationality,optimizing the cavity layout, determine the reasonable forming process and goodcavity layout according to the results of the analysis. Later in this articleemphatically introduces the plastic parts of the process analysis, determination of the parting line, design of gating system, exhaust system, orientation andpositioning mechanism, demoulding mechanism, side parting and core pullingsystem design, forming part of the design, selection of the standard mold sets,temperature control system, the parameter etc.
Keywords: Razor shell; software analysis; injection molding; mold design
临沂大学机械工程学院2014届本科毕业设计
目 录
1 绪论 ........................................................................................................................................ 1 1.1 Pro/E的简介 .................................................................................................................... 1 2 有关塑料的知识 .................................................................................................................... 2 2.1 塑料的概念 ..................................................................................................................... 2 2.2 塑料的组成 ..................................................................................................................... 2 2.3 塑料的发展 ..................................................................................................................... 3 2.4 塑料的性能 ..................................................................................................................... 3 3 塑件成型工艺分析 ................................................................................................................ 5 3.1 塑件结构分析 ................................................................................................................ 5 3.2 塑件工艺分析 ................................................................................................................. 5 3.2.1塑件的分析 ................................................................................................................ 5 3.2.2 PE的性能分析 .......................................................................................................... 6 3.3 注塑成型过程及工艺参数 ............................................................................................. 6 3.3.1注塑成型过程 ............................................................................................................ 6 3.3.2注射成型工艺分析 .................................................................................................... 6 4 确定注射机的型号和规格 .................................................................................................... 7 4.1 塑件体积和质量的计算 ................................................................................................. 7 4.2 所需注射量的计算 ......................................................................................................... 7 4.2.1塑件体积及质量计算 ................................................................................................ 7 4.2.2浇注系统凝料体积计算 ............................................................................................ 7 4.2.3一次注射体积及质量计算 ........................................................................................ 7 4.3 初选注射机 ..................................................................................................................... 8 5 型腔和分型面的确定 ............................................................................................................ 8 5.1型腔数目的确定和校核 .................................................................................................. 8 5.2 型腔的排列方式的确定 ................................................................................................. 9 5.3 分型面位置的确定 ....................................................................................................... 10 6 注射模浇注系统的设计 ...................................................................................................... 11 6.2 主流道设计 ................................................................................................................... 11 6.3 分流道设计 ................................................................................................................... 12 6.4 浇口的设计 ................................................................................................................... 12 6.5 排气系统 ....................................................................................................................... 13 7注射机的有关工艺参数校核 ............................................................................................... 15 7.1最大注射量的校核 ........................................................................................................ 15 7.2 注射机锁模力校核 ....................................................................................................... 15 7.3 开模行程的校核 ........................................................................................................... 16 7.4 注射机注射压力校核 ................................................................................................... 16 8 结构零部件的设计 .............................................................................................................. 18 8.1 标准模架的选用 ........................................................................................................... 18
8.2 合模导向机构的设计 ................................................................................................... 18 8.3 导柱的设计 ................................................................................................................... 19 8.4导套的设计 .................................................................................................................... 19 9 推出机构设计 ...................................................................................................................... 20 9.1推出机构的设计 ............................................................................................................ 20 9.2 推杆位置的设置 ........................................................................................................... 20 9.3 推杆的形状及固定形式 ............................................................................................... 20 9.4 推出机构的导向与复位 ............................................................................................... 21 9.5 脱模结构的设计 ........................................................................................................... 21 10 侧向分型与抽芯机构设计 ................................................................................................ 22 10.1 抽芯距的确定 ............................................................................................................. 22 10.2 抽芯力的计算 ............................................................................................................. 22 10.3 斜导柱设计 ................................................................................................................. 23 11 温度调节系统的设计 ........................................................................................................ 25 11.1模具温调节的重要性................................................................................................... 25 11.2 模具温度与塑料成型温度.......................................................................................... 25 11.3 冷却系统的设计........................................................................................................ 25 12 模具材料的选择 ................................................................................................................ 26 13 模具的试模与修模 ............................................................................................................ 28 13.1 粘着模腔 ..................................................................................................................... 28 13.2 粘着模芯 ..................................................................................................................... 29 13.3 粘着主流道 ................................................................................................................. 29 13.4 成型缺陷分析 ............................................................................................................. 29 14 结论 .................................................................................................................................. 31 参考文献 .................................................................................................................................. 33