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中北大学2013届本科毕业设计说明书1汽车保险杠注射模具设计摘要：随着汽车工业的发展，汽车保险杆作为一种重要的安全装置走向了革新的道路，保险杆除了有保护功能外，还要追求与车体造型的和谐与统一，追求本身的轻量化和表亮化。本文叙述了其注塑模具设计的一般流程，包括塑胶件的工艺分析；模具具体结构的设计；及模具各种2D、3D工程图的绘制；热流道技术；注塑成型设备的选择；相关参数的计算与说明等等。相比其他注塑模设计，本文采用目前模具设计中先进的热流道技术，包括喷嘴的设计、流道板的具体参数的选择与设计等等。本塑件是一个宽度1.6米左右，高0.3米左右，厚度2.5~4厘米之间的汽车后保险杠。塑件整体尺寸较大，无螺纹，所以不需要涉及螺纹设计。这次设计的模具的顶出方式采用简单脱模机构中的顶杆脱模机构。顶杆脱模机构是最典型的简单脱模机构，它结构简单，制造容易且维修方便。在整个设计工作中，本文主要运用3D软件Pro/E以及CAD软件来完成产品的造型。此外还利用CAD绘制了模具装配图以及各种成型零件图。这是第一次利用绘图软件对整套模具进行设计，对所学知识进行了全面巩固，意义重大！关键词：热流道；注塑模设计；Pro/E;CAD中北大学2013届本科毕业设计说明书2BumperMouldDesignAbstract：Thebirthofmobilephoneshaschangedmanypeople'slivinghabits,andthecellphonechargeatGMbecauseofitsexceptionalcircumstances(price,convenience,etc.)getmorepeoplelikedit,soinourliveswaswidelyused.Block,whichisconnectedrechargeablecellphonebatterychargingdevicesandthekeypositions.Thispaperdescribesthedesignofitsinjectionmoldofthegeneralprocesses,includingplasticpiecesoftechnologyanalysis;specificstructureofthemoldanddievarious2D,3Drenderingoftheplan;hotrunnertechnology;injectionmoldingequipmentchoiceoftherelevantparametersCalculationanddescription,andsoon.Theplasticpartsareawidthof1.6meters,0.3metershigh,thethicknessof2.5to4cmbetweenthecarrearbumper.Overallsizelargerplasticparts,non-threaded,sodonotinvolvethreaddesign.Thedesignofthemoldejectionejectionmechanismwithasimplewayofmandrelpullingmechanism.Mandrelejectionmechanismisthemosttypicalsimplestrippingmechanism,itssimplestructure,easytomanufactureandeasymaintenance.Comparedtootherinjectionmolddesign,molddesigncurrentlyusedinthispaperinthehotrunneradvancedtechnologies,includingthenozzledesign,flow-specificparametersofchoiceanddesign,andsoon.Throughoutthedesignworkinthispaperuse3DsoftwarePro/Etocompletethemodelingproducts.Inaddition,alsohasdrawnupthemoldassemblydrawingaswellaseachkindofMoldingPartsdrawingusingCAD.Thisisthatthefirsttimemakesuseofthesoftwaredrawingtocarryoutdesignonpackagemould,havecarriedoutall-roundconsolidationonwhatbelearnedknowledge，Thesignificanceissignificant！Keywords：HotRunner；InjectionMouldDesign；Pro/E;CAD中北大学2013届本科毕业设计说明书1目录1前言.........................................................................................................................................12塑件结构与成型工艺分析.....................................................................................................42.1汽车保险杠模具的设计......................................................................................................42.1.1汽车保险杠的立体示意图...............................................................................................42.1.2汽车保险杠的二维视图...................................................................................................42.1.3汽车保险杠的结构尺寸特征分析...................................................................................42.1.4塑件工艺性分析...............................................................................................................52.2塑料弯管原材料的选择分析..............................................................................................52.2.1塑料的原材料的选择.......................................................................................................52.2超高冲击强度PP性能指标................................................................................................53成型工艺方案的确定.............................................................................................................73.1尺寸精度分析......................................................................................................................73.2塑件的体积和质量..............................................................................................................73.3选择注射机..........................................................................................................................73.4型腔数量以及注射机有关工艺参数的校核......................................................................83.4.1型腔数量...........................................................................................................................83.4.2最大注射量校核...............................................................................................................83.4.3锁模力的校核...................................................................................................................93.4.4注射压力校核...................................................................................................................93.4.5开模行程校核...................................................................................................................93.5分型面的选择......................................................................................................................94浇注系统设计.......................................................................................................................114.1浇注系统设计原则............................................................................................................114.2热流道注塑模具技术........................................................................................................13中北大学2013届本科毕业设计说明书24.3主流道设计.............