模具专业外文文献最新.docx

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模具专业外文文献最新

济南大学泉城学院

毕业设计外文资料翻译

题目现代快速经济制造模具技术

专业机械制造及其自动化

班级专升本1302班

学生刘计良

学号**********

指导教师刘彦

二〇一五年三月十六日

IntJAdvManufTechnol,（2011）53:

1–10DOI10.1007/s00170-010-2796-y

Modulardesignappliedtobeverage-containerinjectionmolds

Ming-ShyanHuang&Ming-KaiHsu

Received:

16March2010/Accepted:

15June2010/Publishedonline:

25June2010

#Springer-VerlagLondonLimited2010

Modulardesignappliedtobeverage-containerinjectionmolds

TheAbstract:

Thisworkappliesmodulardesignconceptstodesignatingbeverage-containerinjectionmolds.Thisstudyaimstodevelopamethodofcontrollingcostsandtimeinrelationtomolddevelopment,andalsotoimproveproductdesign.Thisinvestigationcomprisestwoparts:

functional-itycoding,andestablishingastandardoperationprocedure,specificallydesignedforbeverage-containerinjectionmolddesignandmanufacturing.First,theinjectionmoldisdividedintoseveralmodules,eachwithaspecificfunction.Eachmoduleisfurtherdividedintoseveralstructuralunitspossessingsub-functionorsub-sub-function.Next,dimen-sionsandspecificationsofeachunitarestandardizedandacompatibleinterfaceisconstructedlinkingrelevantunits.Thisworkemploysacup-shapedbeveragecontainertoexperimentallyassesstheperformanceofthemodulardesignapproach.Theexperimentalresultsindicatethatthemodulardesignapproachtomanufacturinginjectionmoldsshortensdevelopmenttimeby36%andreducescostsby1923%comparedwiththeconventionalap-proach.Meanwhile,theinformationonmodularityhelpsdesignersindiverseproductsdesign.Additionally,thefunctionalitycodehelpseffectivelymanageandmaintainproductsandmolds.

Keywords:

Beveragecontainer、Injectionmold、Modulardesign、Productfamily

1.Introduction

Recently,growingmarketcompetitionandincreasinglydiversecustomerdemandhasforcedcompetitorstoincreasethespeedatwhichtheydelivernewproductstothemarket.However,developingamoldformassproduc-tionrequiresconsideringnumerousfactors,includingproductgeometry,dimensions,andaccuracy,leadingtolongproductdevelopmenttime.Introducingmodulardesignconceptsintoproductdesignappearsakeymeanoffacilitatingproductdevelopment,sinceitincreasesdesignflexibilityandshortensdeliverytime[1–4].Mean-while,ahighlevelofproductmodularityenhancesproductinnovativeness,flexibility,andcustomerservices[5].

Modularityistosubdivideacomplexproductintomodulesthatcanbeindependentlycreatedandthenareeasilyusedinterchangeably[6,7].Therearethreegeneralfieldswheremodularitycouldbeimplementedincludingmodularityindesign（MID）,modularityinuse（MIU）,andmodularityinproduction（MIP）[8].MIDinvolvesstan-dardizingbasicstructuralunitswhichperformspecificfunctions,thusfacilitatingflexibleassemblyofvariousproducts[9,10].MIDcanrevealproductstructure,namelytherelationshipamongdifferentproducts.Relatedproductsaretermedproductfamilyandincludebothbasicandspecificfunctions.Developingproductfamiliesoffersbenefitsintermsofmulti-purposedesignandthusreducesproductioncosts[11,12].MIUisconsumer-drivendecom-positionofaproductwithaviewtosatisfyingtheeaseofuseandindividually.MIPenablesthefactoryfloortopre-combinealargenumberofcomponentsintomodulesandthesemodulestobeassembledoff-lineandthenbroughtontothemainassemblylinetobeincorporatedintoasmallandsimpleseriesoftasks.

MIDhasbeenbroadlyappliedtonumerousareasandhasexertedsignificanteffectsintermsofcostreductionanddesigndiversity[13,14].However,thereislimitedempiricalresearchthathasappliedmodulardesigntomolds[15–18].Thisstudythusaimstoreducemolddevelopmenttimebyapplyingmodulardesignanddevelopastandardoperationprocedurefordesigningbeverage-containerinjectionmolds,whicharecharacterizedbyscoresorevenhundredsofcomponents.

2.Generalproceduresofdesigninginjectionmolds

Basically,aninjectionmoldsetconsistsoftwoprimarycomponents,thefemalemoldandthemalemold.Themoltenplasticentersthecavitythroughasprueinthefemalemold.Thespruedirectsthemoltenplasticflowingthroughrunnersandenteringgatesandintothecavitygeometrytoformthedesiredpart.Sidesofthepartthatappearparallelwiththedirectionofthemoldopeningaretypicallyangledslightlytoeaserejectionofthepartfromthemold.Thedraftanglerequiredformoldreleaseisprimarilydependentonthedepthofthecavityandtheshrinkagerateofplasticmaterials.Themoldisusuallydesignedsothatthemoldedpartreliablyremainsonthemalemoldwhenitopens.Ejectorpinsorejectorplateisplacedineitherhalfofthemold,whichpushesthefinishedmoldedproductorrunnersystemoutofamold.Thestandardmethodofcoolingispassingacoolantthroughaseriesofholesdrilledthroughthemoldplatesandconnectedbyhosestoformacontinuouspathway.Thecoolantabsorbsheatfromthemoldandkeepsthemoldatapropertemperaturetosolidifytheplasticatthemostefficientrate.Toeasemaintenanceandventing,cavitiesandcoresaredividedintopieces,calledinserts.Bysubstitutinginterchangeableinserts,onemoldmaymakeseveralvariationsofthesamepart.

Generalmolddesignprocesscontainstwoparts[19]:

partdesignandmolddesign.Thepartdesignprocesscontainsfivemajorprocedures:

definingmainpullingdirection,definingcoreandcavity,calculatingshrinkagerate,definingdraftangle,andthendefiningpartingline.Themolddesignprocessmainlyincludeschoosingamoldbase,positioningthemoldedpart,designingcoreandcavity,designingcomponents,designingcoolantchannels,creatingreturningpin,addingejectorpin,creatinggateandrunner,addinglocatingringandspruebushinginsequence.

3.Applyingmodulardesignforbeveragecontainers

Thisstudyappliesmodulardesigntobeverage-containerinjectionmoldsviaafivestageprocess,asfollows:

（1）productclassificationandmachinespecifications,

（2）divisionofinjectionmoldsintomodulesbasedonfunc-tionality,（3）divisionofindividualmodulesintomultipleunitswithsub-functions,andtherelationshipbetweendesignandassemblyforeachunit,（4）standardizationofstructuralunits,and（5）codingofstandardstructuralunits.Theseindividualprocessesaredetailedbelow.

Clampingplate

Clampingmodule

Femalemoldbase

Malemoldbase

Manifold

Hot-runnermodule

Hot-tipbushing

Hottip

Abeverage-container

Femalemoldinsert

hot-runnerinjectionmold

Cupbasefemalemoldinsert

Moldingmodule

Malecoolingbase

Malemoldinsert

Airejector

Leaderpin

Guidingmodule

Leaderpinbushing

Cost

Durationofmodularmold

developmentprocess

Cost

Durationofconventionalmold

down

developmentprocess

Highlyefficientprocess

deliveryMaterials

machiningCNC

Milling

Turning

treatmentHeat

product-Semi

EDM

cuttingWire

Polishing

Texture

Product

Time

Conventionalmolddevelopmentprocess

Reductionofworkinghours

Modularmolddevelopment

process

Fig.2Comparisonofconventionalandmodularmolddevelopmentprocesses

3.1Productclassificationandmachinespecifications

Thisstepclassifiesallofthebeveragecontainersbasedontheirgeometryanddimensions,andselectsthemachinewiththemostsuitablespecificationsforproduction.Therearefivemajorqualificationsforaninjectionmoldingmachine,includingsufficientmoldclampingforce,suffi-cienttheoreticalshotvolume,sufficientdistancebetweentiebars,sufficientrangeofmoldthickness,andsufficientmoldclampingstroke.

3.2Divisionofinjectionmoldsintomodulesbasedonfunctionality

Thisstepdividesamoldsetintoseveralmoduleswithindividualfunctions.Theprinciplesofdivisionincludegeneralrule,divisionrule,applicabilityrule,andinter-changerule.Ingeneralrule,modulesmustcontainallthefunctionsofbeverage-containerinjectionmolds.Indivisionrule,eachfunctionalmodulemustcontainatleastonefundamentalfunctionandeachunitmustfulfillitsownspecificfunctions.Astoapplicabilityrule,unitsfulfillingasinglefunctionarepreferred.Forinterchangerule,funda-mentalunitsshouldbeinterchangeableamongmodulesafterdividingmoldsintoproductfamilies.

3.3Divisionofamoduleintomultipleunits

withsub-functionandtherelationshipbetweendesignandassemblyforeachunitFigure1illustratesthestructureofabeverage-containermoldthatincludesseveralfunctionalmodules.Thefunc-tionsofindividualmodulesarefurtherextendedtothestructuralunitviasub-functionsorsub-sub-functions.Thedividedmodulesincludeclampingmodule,hot-runnermodule,moldingmodule,ejectingmodule,andguidingmodule.Theclampingmodulefunctionsforpreciselypositioningindividualunitsandmodulesonaninjectionmoldingmachine.Thehot-runnermoduleistomaintaintheflowabilityofmoltenplasticsviaheating.Themoldingmodulecontrolsthegeometryanddimensionalaccuracyofinjection-moldedparts.Theejectingmoduleejectsinjection-moldedpartsfromthemoldcavity.Theguiding