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1、注塑件成型与设计InjectionMoldingProcessOverviewPartandToolDesignTerminologyCommonMoldingDefectsMoldedPartDesignBestPracticesInjectionMoldingProcessOverviewInjectionMoldComponentsCavityCoreClampPlatesEjectorPlate&PinsLiftersSlidesWaterLinesGatesandSpruesHotRunnerSystem,etcHotRunnerManifold&MultipleValveGa
2、tesThemanifoldinalargemoldheatsanddeliversthehotplasticfromthemoldingmachinetothegatelocationsonthepart.Lifters-FormDie-LockedFeaturesLiftersaremechanismswhichmoveapproximatelyinthedirectionofthemoldopening(dieangle).Theyareusuallyactivatedbylifterrodsoperatedbytheejectorplate.Liftersoftenmoveona
3、nangletothepartduringmoldopeningandejectiontounlockadie-lockedfeature.MoldOpenMoldClosedDieDirection(moldopeningangle)LifterCoreSlides-FormDie-LockedFeaturesAcoreslideisamechanismonthecorewhichmovesnormal(90°)todieangledirectiontoformdie-lockfeaturesorundercutsinthepartdesign.Theslideisactuatedby
4、pins,cams,orhydraulicorpneumaticcylindersduringandafterthemoldcavityopens.SimpleCoreSlideandEjectionPlasticPartEjectionPinCoreWithSlideCavityWithHornPin*Actually,thecavityisstationary,andthecoresidemovestoopenthetoolwhenmountedinthemoldingmachine.AcceleratingEjectionPinInjectionSprueEjectionwithL
5、ifterCavityandCorewithLifterandPinPlasticPartEjectionPinCorewithlifterCavityTravelingAngledLifterFormsribwithflangeInjectionSprueCamOperatedCorePinFormsholeinflange*Actually,thecavityisstationary,andthecoresidemovestoopenthetoolwhenmountedinthemoldingmachine.CamDesignTerminologyPartandToolDesignT
6、erminologyPartandToolDesignTerminology-DieAngles&DraftAngles,拔模角-ASurface,BSurface,etc.A面,B面-PartingLines,LifterLines,分模线-Doghouses,Ribs,Flanges安装支座,加强筋,翻边-TrueHoles,MoldedHoles,注塑孔-ToolingConsiderations,注塑模考虑....DieAngle&PartingLineDieAngle(DieVector) MoldopeningdirectionPartingLine– wherethecor
7、e,cavity,andpartmeettogether.Part(2cavity)CoreCavityDraftAnglesPartsmusthaveopendraftanglesinthepartgeometrydesign.Partdraftangleismeasuredrelativetothedieopeningangle.Ifthereisnodraftangle,thepartwillcoolandshrinkonto
