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电话听筒注射模设计说明书.doc

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电话听筒注射模设计说明书.doc

西南交通大学本科毕业设计论文第1页目录前言...................................................................................................................................1第一章概论....................................................................................................................21.1塑料模具的特点与发展趋势...............................................................................................21.1.1塑料模具的重要性..........................................................................................................21.1.2塑料模具的特点.............................................................................................................21.1.3塑料成型技术的发展趋势...............................................................................................31.2注射模设计要求与程序......................................................................................................41.2.1基本要求与注意事项......................................................................................................41.2.2设计程序........................................................................................................................4第二章听筒注射模具设计过程...............................................................................................82.1塑件分析...........................................................................................................................82.2塑件材料的成型特性与工艺参数......................................................................................102.2.1ABS基本特性.................................................................................................................102.2.2ABS主要用途...............................................................................................................102.2.3ABS成型特点...............................................................................................................102.3成型设备的选择................................................................................................................112.3.1型腔数量及排列方式....................................................................................................122.3.2注射容量的的估计计算.................................................................................................122.3.3注射机的选定及其技术参数..........................................................................................122.4分型面和排气槽的设计.....................................................................................................132.4.1分型面的设计...............................................................................................................132.4.2排气槽设计..................................................................................................................142.5浇注系统的设计...............................................................................................................142.5.1主流道的设计...............................................................................................................152.5.2分流道的设计...............................................................................................................152.5.3浇口的设计..................................................................................................................162.5.4冷料穴的设计...............................................................................................................182.6成型零部件的设计与计算.................................................................................................182.6.1成型零件的结构设计....................................................................................................192.6.2成型零件的工作尺寸计算.............................................................................................19西南交通大学本科毕业设计论文第2页2.6.3模具型腔侧壁和底板厚度的计算...................................................................................242.6.4模架的选取....................................................................................................................262.7合模导向机构的设计.........................................................................................................272.8侧向分型与抽芯机构的设计.............................................................................................282.8.1确定抽芯形式与结构....................................................................................................282.8.2确定抽芯机构的结构尺寸.............................................................................................292.9脱模机构的设计................................................................................................................302.9.1脱模力的计算...............................................................................................................302.9.2脱模机构的结构形式....................................................................................................312.9.3脱模机构的导向与复位.................................................................................................322.10温度调节系统的设计与计算............................................................................................322.10.1冷却水道回路的布置...................................................................................................322.10.2冷却时间的计算..........................................................................................................332.11注射机的校核.................................................................................................................332.11.1工艺参数的校核............................................................................................................332.11.2安装参数校核.............................................................................................................34总结..............................................................................................................................35致谢............................................................................................................................36参考文献................................................................................................................................37摘要在目前激烈的市场竞争中,产品投入市场的迟早往往是成败的关键。模具是高质量、高效率的产品生产工具,模具开发周期占整个产品开发周期的主要部分。因此,如何在保证质量、控制成本的前提下缩短模具开发周期是值得认真考虑的问题。模具开发周期包括模具设计、制造、装配与试模等阶段。所阶段出现的问题都会对整个开发周期都有直接的影响,但有些因素的作用是根本的、全局性的。人的因素及设计质量就是这样的因素。缩短设计周期并提高设计质量是缩短整个模具开发周期的关键之一。模块化设计就是利用产品零部件在结构及功能上的相似性,而实现产品的标准化与组合化。大量实践表明,模块化设计能有效减少产品设计时间并提高设计质量。因此本文探索在模具设计中运用模块化设计方法。某些模具零件(如凸凹模)的形状和尺寸由产品决定因而无法在模块设计时预见西南交通大学本科毕业设计论文第3页到,所以只能按常见形状设计模块(如圆形或矩形的冲头),适用面窄某些模具零件(如冲压模的工件定位零件)虽然互相配合执行某一功能,但它们的空间布置难寻规律与共性,因此即使按功能划分也不能产生模块。本文介绍了注射模具的特点及发展趋势,叙述了电话机听筒注射模具设计与计算的详细过程,介绍了该塑件成型工艺、注射模具的结构特点与工作过程,阐述了在有斜滑块抽芯的注射模设计中应注意的事项关键词听筒,注射模斜滑块侧抽芯AbstractLaunchinganewproductintimeisthekeytosuccessinthecurrentfiercemarketcompetition.Moldasthetoolwhichisusedtoensurethehighqualityandhighefficiencyproduction,itsdevelopmentcircletakesupthemainpartoftheentiredevelopmentcircleoftheproduct.Thus,itisnecessarytoconsiderhowtoshortentheentiredevelopmentcircleofmodelonthepremisethatthequalitycanbeensuredandthecostcanbecut.Thedevelopmentofmodelincludesdesigning,producing,assemblingandexaminingstepsetc.theproblemswhichappearineverystepcaninfluencethewholedevelopingprocessdirectly.Therearemanyfactorsinfluencethedevelopmentprocess,someoftheminfluenceitradically,entirely,suchasthedesignerandthequalityofdesign.Shorteningtheperiodandenhancingthequalityofdesignarethekeystoshortentoentiredevelopmentcircleofmodel.Modulardesignrefersto西南交通大学本科毕业设计论文第4页utilizethesimilarityinconstructionandfunctionbetweenthecomponentstoachievethestandardizationandassibilationofproducts.Practicesshowthatmodulardesignisaneffectivewaytoreducethetimeandenhancethequalityofproducts.Thispapermainlyexploresthemethodofapplyingthemodulardesigninmodeldesign.Shapeandsizeofsomemodelspares,suchasconvexandcavemoldaredecidedbycertainproduct,astheresult,theycannotbeforesawinthemodelpiecedesign,peopleonlycandesignthemodelaccordingtothecommonshapessuchasthebluntheadofcircularorrectangle.Meanwhile,althoughsomemodelsparessuchasbluntpressthefixedpositionsparecanworkincoordinationtocarryoutcertainfunction,itishardtofindtheregulationandsimilarityintheirspacesarrangement,soitalsocannotproduceamodelpieceevenaccordingtotheirfunction.Thecharacteristicsanddevelopmentsofinjectionmouldwillbeintroducedinthispaper.Thedesigningandcalculatingofinjectionmouldofmicrophonewillbestatedindetail.Theformingprocessoftheproductandthestructurecharacteristicsaswellasworkingprocessoftheinjectionmouldwillbeintroduced.Theattentionshouldbepaidinthedesignoftheinjectionmouldforthepartwithliftersalsowillbestated.Keywordsmicrophone,injectionmouldliftercorepulling前言在现代工业发展的进程中,模具的地位及其重要性日益被人们所认识。模具工业作为进入富裕社会的原动力之一,正推动着整个工业技术向前迈进随着塑料工业的飞速发展,以及通用塑料与工程塑料在强度和精度方面的不断提高,塑料制品的应用范围也在不断地扩大。因此,塑料模具的设计与制造也显得越来越重要,而注射模则是塑料模具中最常用的一种模具。本文即介绍了家用程控电话机听筒的注射模具设计详细过程。在塑料原材料转变为塑料制件的成型过程中,塑料原材料的选用,成型设备的选择,成型模具的设计与制造和成型工艺的制定等是塑料制件生产的四大环节,而主要

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