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华东交通大学理工学院毕业设计（2009—2013年）题目包装桶注塑模设计分院：机电工程分院专业：材料成型及控制工程班级：材料2009—1学号：20090410210230学生姓名：吴毛毛指导教师：陈东星起讫日期：2012.11－2013.5华东交通大学理工学院毕业设计（论文）原创性申明本人郑重申明：所呈交的毕业设计（论文）是本人在导师指导下独立进行的研究工作所取得的研究成果。设计（论文）中引用他人的文献、数据、图件、资料，均已在设计（论文）中特别加以标注引用，除此之外，本设计（论文）不含任何其他个人或集体已经发表或撰写的成果作品。对本文的研究作出重要贡献的个人和集体，均已在文中以明确方式表明。本人完全意识到本申明的法律后果由本人承担。毕业设计（论文）作者签名：日期：年月日毕业设计（论文）版权使用授权书本毕业设计（论文）作者完全了解学院有关保留、使用毕业设计（论文）的规定，同意学校保留并向国家有关部门或机构送交设计（论文）的复印件和电子版，允许设计（论文）被查阅和借阅。本人授权华东交通大学理工学院可以将本设计（论文）的全部或部分内容编入有关数据库进行检索，可以采用影印、缩印或扫描等复制手段保存和汇编毕业设计（论文）。（保密的毕业设计（论文）在解密后适用本授权书）毕业设计（论文）作者签名：指导教师签名：签字日期：年月日签字日期：年月日华东交通大学理工学院毕业设计5引言模具是工业产品生产用的重要工艺装备，在现代工业生产中，60%~90%的工业产品需要使用模具，模具工业已成为工业发展的基础，许多新产品的开发和研制在很大程度上都依赖于模具生产，特别是汽车、摩托车、轻工、电子、航空等行业尤为突出。塑料成型技术发展十分的迅速，新的成型工艺层出不穷，因此必须了解新的成型工艺与成型技术，以便掌握和推广。在塑料成型生产中，先进的模具设计、高质量的模具制造、优质的模具材料、合理的加工工艺和现代化的成型设备等是成型优性塑件的必要条件。一副优良的注塑模具可以成行成千上万次，一副优良的压缩模具可以成型25万次，这与上述因素有很大的关系.由于塑料成型工艺与模具设计是一门实践性很强的课程，所以学习是必须理论联系实际。必须以负责的态度去完成毕业设计、积极参加生产实习，将所学的知识与模具工业的生产实际进行联系与比较、归纳与提升，从而使学生在凭自己的能力以及查阅有关资料的前提下，在校期间能够设计具有一定难度的塑料模具。这次毕业设计不仅让我熟悉了课本所学知识，而且让我做到所学的运用到实践当中，更让我了解了塑料模具设计的全过程和加工实践的各种要点。使我在本次设计实践当中有一个质的飞跃。我很喜欢塑料模具设计这份工作，从进入大学我就励志要做一名很好的模具工程师！吴毛毛—包装桶塑料模具设计6IntroductionMouldisoneoftheimportanttechnologyandequipment,industrialproductsproductioninthemodernindustrialproduction,60%~90%oftheindustrialproductsneedtousethemould,mouldindustryhasbecomethebasisofindustrialdevelopment,thedevelopmentandthedevelopmentofmanynewproductslargelydependsonthemoldproduction,especiallyinautomobile,motorcycle,lightindustry,electronic,aviationandotherindustries.Plasticmoldingtechnologydevelopmentisveryrapid,newformingtechnologyemergeinendlessly,somustunderstandthenewmoldingprocessandmoldingtechnology,Diestructuredesignisoneofthemainelementsofthisdesign,whichcontainsthemoldpartinglineselection,makingiteasytounderstand,easytoprocess.inordertomasterandpopularize.Inplasticmoldingproduction,advancedmolddesign,highqualityofmouldmanufacturing,high-qualitymoldmaterial,thereasonableprocessingtechnologyandmodernmoldingequipmentisnecessaryconditionofoptimalityplasticformingparts.Agoodpairofinjectionmoldcanmaketensofthousandsoftimes,agoodpairofcompressionmoldcanmolding250000times,ithasalottodowiththesefactors.Becausetheplasticmoldingprocessandmolddesignisapracticalcourse,solearningisamustintegratetheorywithpractice.Muststartwitharesponsibleattitudetocompletegraduationdesign,activelyparticipatedinproductionpractice,thelearnedknowledgeandtheactualproductionofmoldindustrycontactandcomparison,inductionandascension,whichmakethestudentsownabilityaswellasaccesstorelevantinformationunderthepremiseof,duringtheperiodofschoolcandesignhasthecertaindifficultyofplasticmold.Thisgraduationdesignnotonlymakesmefamiliarwiththetextbookknowledge,butalsoletmedowhattheyhavelearnedintopractice,moreletmeknowthewholeprocessoftheplasticmolddesignandprocessingpracticeofthevariouspoints.Ipracticeinthedesignhaveaqualitativeleap.ThejobIlikeplasticmolddesign,fromenteringtheuniversityIwantedtodoagoodmouldengineer!华东交通大学理工学院毕业设计7目录1引言·····························5Introduction···························6目录······························7一．塑件工艺分析·························91.1塑件分析·························91.2塑件材料的确定······················91.3工艺特点·························91.4塑料的收缩率及密度确定··················91.5模具种类与模具设计的关系·················10二.注射机的选用及型腔数的确定··················122.1.利用PRO/E进行体积的计算·················122.2确定型腔数及其排列·····················132.3注射机的选用·······················132.4锁模力的校核·······················132.5模架的简介························14三．模具结构设计·························153.1模具结构·························153.2分型面位置确定······················153.3浇注系统设计·······················163.4主流道设计························163.5浇口的形状及其位置选择··················173.5.1浇口位置的选择····················183．6冷却系统的设计······················18四．脱模机构设计························································································204.1推出结构设计··················································································20五.导向及定位机构····················································································21六．注射成型原理及工艺特性·······································································236.1注射成型原理······················23吴毛毛—包装桶塑料模具设计86.1.1柱塞式注射机注射成型·················236.1.2螺杆式注射机注射成型················236.2注射成型工艺参数·····················236.2.1注射成型温度·····················246.2.2注射成型压力·····················246.2.3注射成型周期····················256.3.注射成型·························256.3.1．成型前的准备····················256.3.2．注射成型过程····················266.3.3．制品后处理·····················26七.成型零部件设计····················································································287.1成型零部件结构设计····················287.1.1凹模和凸模的结构设计··················287.1.2螺纹型环和螺纹型芯结构设计··············287.2型芯和型腔径向尺寸计算···················297.2.1型腔径向尺寸计算···················297.2.2型芯径向尺寸计算···················307.3型腔深尺和型芯高度尺寸计算·················307.4螺纹型环工作尺寸的计算···················317.5开模行程的校核·······················31八.模具工作原理·························32九．结论·························