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瓶盖注射模设计论文[带图纸].doc瓶盖注射模设计论文[带图纸].doc -- 45 元

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哈尔滨工业大学华德应用技术学院毕业设计(论文)I摘要本论文介绍了注射成型的基本原理,特别是注射模具的结构与工作原理,对注塑产品提出了基本的设计原则,详细介绍了冷流道注射模具浇注系统、温度调节系统和顶出系统的设计过程,并对模具强度要求做出了说明。设计成型零部件以及设计合理的推出机构。对设计进行验证主要是对注射机的相关重要参数进行验证,包括模具闭合厚度、模具安装尺寸、模具开模行程、注射机的锁模力等。塑料工业是当今世界上增长最快的工业门类之一,而注塑模具是其中发展较快的种类,因此,研究注塑模具对了解塑料产品的生产过程和提高产品质量有很大意义。本设计中包括模具零件强度设计及校核。在确定模具型腔时,应考虑使其在高压熔体的作用下具有足够的强度与刚度,又不使模具过于笨重。通过本设计,可以对注塑模具有一个初步的认识,注意到设计中的某些细节问题,了解模具结构及工作原理。关键词注射模成型零件塑料模具分型面哈尔滨工业大学华德应用技术学院毕业设计(论文)IIAbstractThisdesignintroducedtheinjectiontakesshapethebasicprinciple,Introducedindetailthecoldflowchannelinjectionevilspiritmoldpoursthesystem,thetemperaturecontrolsystemandgoesagainstthesystemthedesignprocess,andhasgiventheexplanationtothemoldintensityrequest.Designshapedparts,reasonabledrawingmechanismandsoon.Thedesignshouldbecertification.Primarilyrelatedtotheinjectionmachineofimportantparametersforthecertificationincluding,thenamedistance,injectionmachineofthediedrawforceandsoon.AfterQualifiedincheck,themoldingpartsmachiningprocessdesignthatthequalityofSupervisiontakingintoaccounttheeconomy.Plasticindustryisgrowsnowoneofquickestindustryclassesintheworld,butcaststhemoldisdevelopmentquicktype,therefore,theresearchcaststhemoldtounderstandtheplasticproducttheproductionprocessandimprovestheproductqualitytohavetheverybigsignificance.Finalassemblyispartofthemold,whichincludingthedesignofassemblysteps,clearproceedingrequiredattention.Throughthisdesign,maytocastthemoldtohaveapreliminaryunderstanding,notesinthedesigncertaindetailquestion,understandsthemoldstructureandtheprincipleofwork.KeywordsInjectionmoldShapedpartsTheplasticmoldDividestheprofile哈尔滨工业大学华德应用技术学院毕业设计(论文)III目录摘要.........................................................................................................................IAbstract..................................................................................................................II第1章绪论.........................................................................................................11.1模具工业在国民经济中的地位..................................................................11.2塑料模具的分类..........................................................................................11.3我国模具技术的现状.................................................................................11.4我国模具的发展趋势.................................................................................21.5国外模具的发展状况.................................................................................41.6本章小结.....................................................................................................4第2章注塑成型工艺...........................................................................................52.1塑件图分析..................................................................................................52.2PA1010材料性能........................................................................................62.2.1化学和物理性能..................................................................................62.2.2模具设计方面.......................................................................................62.2.3注塑模工艺条件..................................................................................62.3成型工艺条件.............................................................................................72.3.1温度......................................................................................................72.3.3压力......................................................................................................72.3.4成型周期..............................................................................................82.4塑件精度等级.............................................................................................82.5本章小结.....................................................................................................8第3章注射机的选择...........................................................................................93.1型腔数量的确定..........................................................................................93.2注射机的选用..............................................................................................93.2.1根据最大注射量选用注射机...............................................................93.2.2确定注射机型号................................................................................103.2.3型腔数量校核....................................................................................113.2.4塑件在分型面上的投影面积校核....................................................113.2.5锁模力校核........................................................................................123.2.6注射压力校核....................................................................................123.2.7开模行程的校核................................................................................133.2.8注射机最大开模行程与模具厚度的校核........................................13哈尔滨工业大学华德应用技术学院毕业设计(论文)IV3.3本章小结...................................................................................................14第4章浇注系统的设计.....................................................................................154.1定位圈尺寸................................................................................................154.2制品成型位置及分型面的选择...............................................................164.3浇注系统的设计.......................................................................................164.3.1浇注系统设计原则............................................................................174.3.2主流道的设计原则............................................................................174.3.3主流道的尺寸计算............................................................................184.3.4分流道的设计....................................................................................204.3.5分流道的尺寸计算............................................................................214.3.6冷料穴的设计....................................................................................214.3.7浇口的作用........................................................................................224.3.8浇口的设计原则................................................................................234.3.9浇口尺寸的计算................................................................................234.4排气方式的确定.......................................................................................244.5本章小结....................................................................................................24第5章成型零部件的设计.................................................................................255.1塑件尺寸精度的影响因素.......................................................................255.2成型零部件工作尺寸计算.......................................................................255.2.1凹模直径计算....................................................................................255.2.2凹模深度计算....................................................................................265.2.3凸模直径计算....................................................................................285.2.4凸模高度计算....................................................................................285.2.4两型芯中心距....................................................................................295.3型腔壁厚的校核.......................................................................................305.3.1型腔侧壁厚度计算.............................................................................305.3.2底板厚度计算....................................................................................305.4本章小结...............................................................................................31第6章抽芯机构设计.........................................................................................326.1斜导柱外侧向抽芯机构的组成...............................................................326.2斜导柱的设计...........................................................................................326.2.1斜导柱的倾角................................................................................326.2.2锁紧块角度确定................................................................................326.2.3抽芯距................................................................................................336.2.4斜销有效工作长度............................................................................34哈尔滨工业大学华德应用技术学院毕业设计(论文)V6.2.5抽芯力的计算....................................................................................346.2.6最大弯曲力........................................................................................346.2.7斜导柱的长度计算............................................................................356.3本章小结...................................................................................................36第7章模具结构件的设计.................................................................................377.1模板的选取...............................................................................................377.2导向与定位机构的形式...........................................................................397.2.1导柱结构形式....................................................................................397.2.2导套的结构形式................................................................................407.3本章小结...................................................................................................41第8章推出机构的设计.....................................................................................428.1推出机构的设计原则...............................................................................428.2脱模力的计算...........................................................................................428.2.1脱模力的来源....................................................................................428.2.2脱模力的分类....................................................................................428.2.3无斜度薄壁圆筒制品脱模力计算....................................................438.3推块的设计...............................................................................................438.3.1推块的设计要点................................................................................438.4推杆板复位弹簧.......................................................................................448.4.1弹簧的选取........................................................................................448.4.2弹簧自由长度的确定........................................................................458.5本章小结...................................................................................................45结论.......................................................................................................................46致谢.......................................................................................................................47参考文献...............................................................................................................48附录.......................................................................................................................49
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