调速旋钮注塑模具设计

摘要本文阐述了风扇调速旋钮注塑模具的设计过程，并对设计原理及方案的选择进行了相应的论述。风扇调速旋钮的注射模具设计必须首先分析风扇调速旋钮结构，测量尺寸，确定分型面，运用pro/e软件造型，分析它的尺寸、质量等要素。然后进行整体设计，包括选择注射机，设计浇注系统，型芯、型腔，完成型芯、型腔的尺寸计算，设计冷却回路等。之后进行相应校核，如注射机的校核，模具最大厚度的校核等，并分析、确定方案的可行性。最后对模具工艺进行相应描述，并制作模具工艺卡，绘制各零、部件图纸等。同时，就目前的模具市场，尤其是中国模具市场，来制定模具加工工艺。目前世界模具市场供不应求，模具的主要出口国是美国，日本，法国，瑞士等国家。中国模具出口数量极少，但中国模具钳工技术水平高，劳动成本低，只要配备一些先进的数控制模设备，提高模具加工质量，缩短生产周期，沟通外贸渠道，模具出口将会有很大发展。研究和发展模具技术，提高模具技术水平，对于促进国民经济的发展有着特别重要的意义。关键词：风扇调速旋钮；注塑模具；浇注系统；型芯；型腔。AbstractThisarticleelaboratedthedesignprocessofventilatorvelocitymodulationknobinjectionmold's,andhascarriedonthecorrespondingelaborationtotheprincipleofdesignandtheplanofchoice.Inhere,Ihavecompletedthedesignassignmentaboutinjectionmoldforventilatorvelocitymodulationknob.Inthefirstplace,Imustanalyzethestructureofventilatorvelocitymodulationknob,surveythesizeofit,decidethepartingline,utilizethepro/esoftwaremodelling,analyzesessentialfactorsandsoon.Andthen,theprimarydesignassignmentwillbeputup.Thetaskmostlyincludechoicinginjectionmachine,designingthefeedsystem(includesprue,runnerandgate),thecoreandthecavity.Exceptthat,Imustfinishthecalculationaboutthecoreandthecavity.Coolingchannelandventofinjectionmoldmustbetakeintoaccount.Inthenextplace,Carryonthecorrespondingexamination,liketheinjectionmachineexamination,themoldgreatestthickness'sexaminationandsoon.Afterward,Imustanalyzesandmakesurethedeterminationplanfeasibility.Finally,thecorrespondingtechnicsofmoldmustbedescribedandthecardofmoldtechnicsbedone.Ofcourse,theblueprintofallaccessorywouldbefinished.Atthesametime,makeuseofconditionthemarketofmoldinpresent,especiallyintheChinesemarketofmold,toformulatethemoldprocessingcraftparticularly.Atpresenttheworldmoldmarketfallsshortofdemand,mold'sleadingexporteristheUS,Japan,France,countriesandsoonSwitzerland.Chinesemoldexportquantityareextremelyfew,buttheChinesemoldfittertechnicallevelishigh,thecostoflaborislow,solongasprovidessomeadvancednumericalcontrolpatternmakingequipment,improvesthemoldprocessingquality,willreducetheproductioncycle,thecommunicationforeigntradechannel,themoldexportwillhavetheverybigdevelopment.Theresearchandthedevelopmentmoldtechnology,raisesthemoldtechnicallevel,regardingpromotesthenationaleconomydevelopmenttohavethespeciallyvitalsignificance.Keywords:Ventilatorvelocitymodulationknob;Injectionmold;Feedsystem;Core;Cavity.目录引言...........................................................11.塑件分析...................................................42.材料的成型特性与工艺参数...................................43.注射机的选取...............................................54.模具的结构设计.............................................64.1型腔数目的确定........................................................64.2分型面................................................................64.3浇注系统..............................................................74.3.1主流道的设计........................................................74.3.2分流道设计..........................................................84.3.3浇口的设计.........................................................104.3.3校核流动比.........................................................114.3.4浇注系统的平衡.....................................................114.3.5冷料穴和拉料杆的设计...............................................114.3.6分析浇口和塑件成型情况.............................................124.4成型零部件设计与计算.................................................144.4.1成型零部件的结构设计...............................................144.4.2成型零部件工作尺寸的计算...........................................144.4.3成型零部件的强度与刚度计算.........................................174.5结构零部件的设计.....................................................194.5.1模架的选取.........................................................194.5.2定模座板、动模座板的设计...........................................204.5.3合模导向机构的设计.................................................214.6推出机构设计.........................................................214.6.1推出力的计算.......................................................224.6.2推出机构...........................................................224.7排气系统.............................................................244.7.1排气系统的设计.....................................................244.7.2推管、推杆、镶件排气功能的证明.....................................254.8模具温度调节系统设计.................................................254.8.1冷却系统的设计.....................................................254.8.2冷却计算...........................................................265.注射机的校核..............................................316.安装参数校核..............................................326.1模具厚度校核.........................................................326.2开模行程校核.........................................................327.模具制造工艺..............................................327.1塑料模制造技术要求..................................................327.2制造工艺.............................................................337.2.1型腔的制造工艺.....................................................347.2.2型芯的制造工艺.....................................................347.2.3小型芯的制造工艺..........................