Matters needing attention

1.Semi-automaticandmanualpunchesmustbeequippedwithatwo-handbrakeswitch.Itisstrictlyprohibitedtostarttheswitchstampingwithafootoronehand.2.Afterthehigh-impactmachineisadjusted,afternormalpunching,closethesoundproofbox(exceptfortheproduct8065packagingduringinspection).3.Duringcontinuouspunching,employeescannotpickuptheproductbyhandwithin1Mofthepunch.4.Whenthetechnicianisonthemachine,onlyonepersoncandebug,nottwopeople.5.Thetechnicianadjustsandfeedsthematerial,onlyoutsidethemachine,andthedistanceisnotlessthan1M.6.Besuretotightenthescrewswhenmountingthemold,andstopafter4hourstocheckwhetherthescrewsareloose.7.Whenthereisaproblemintheproductionprocessofthemoldwithoutremovingthemold,anddirectlyrepairingonthemachinetool,youmustfirstturnoffthepoweroftheinjectionmoldingmachineandhangamaintenancesignonthepowerboxbeforeperformingthemoldrepair.8.Alltoolswillbereturnedtothetoolboxaftertheyareusedup.Donotputthemonthemachinetopreventthetoolsfromfallingandhurtingpeople.9.Whenthemachineisnotinproduction,cutoffthepowersupplyintime.10.Forshortworkpieces,specialtoolsmustbeused.Donotdirectlyfeedorpickuppartsbyhand.11.Theproducershouldstandproperly,keepacertaindistancebetweenthehandandheadandthepunch,andpayattentiontothepunchmovementatalltimes.Itisstrictlyforbiddentochatwithothers.12.Itisstrictlyforbiddenforoperatorsandmoldrepairerstoputtheirhandsintothemoldduringproduction.13.Whentheoperatorinstallsthesuctionfan,itisstrictlyforbiddentoputhishandonthemotortocleanthewaste.14.Itisstrictlyforbiddentowearslipperswhengoingtowork,soasnottohitthefeetwithmoldsandironblocksintheworkshop.Thesquadleader,fitter,andmoldrepairermustwearprotectiveshoeswhentheygotowork;15.Maleoperatorsarestrictlyforbiddentoleavelonghair,andfemaleoperatorsmustkeeptheirhairuptopreventlonghairfromgettingcaughtintheflywheel.16.Payattentiontofirepreventionforwhiteoil,alcohol,cleaningagentandotheroils.17.Weargloveswhenpackingmaterials,scrapsandmoldstoavoidscratchingyourhands.18.Ifthereisoil,cleanitupintimetoavoidslipping.19.Itisstrictlyforbiddentoweargloveswhendrillingandmilling;wearamaskandeyeprotectionwhenusingthegrindingmachinetoprotectyourself.20.Becarefultodragthemoldtopreventitfromfallingtotheground(theflatbedcartmustbeloweredtotheminimumtopullthemold).21.Itisstrictlyforbiddenfornon-electricianstoconnectelectricityandrepairthemachine.22.Itisstrictlyforbiddentoblowthewindgunatpeople,whichmayhurttheeyes.23.Theoperatorneedstowearearplugs.24.Whenthemachineisfoundtobeabnormal,turnoffthepowerfirstandthenaskthetechnicianondutytohandleitintime.25.Whenanewemployeecomestoworkonthefirstday,theteamleadermustexplaintohimgoodsafetypracticesandstudythesafetypracticesonceadayforthefirstweek.26.Whenadjustingthemachine,besuretoadjustthemachinetoasingleaction.27.Donotstoreanyflammableorexplosiveitemsundertheswitch.28.Operatorsarestrictlyprohibitedfromchasingandchasingintheworkshoptoavoidfalling,hittingtheproductorhurtingthemselves.29.Carryoutequipmentinspectionaccordingtotheinspectioncontentontheequipmentinspectioncard.Payspecialattentiontowhethertheguideandbrakingdeviceofthepunchareoperatingnormally.Thesingleandcontinuouspunchfunctionsareclear.30.Wheninstallingthemoldonthesmallpunch(10T),firstloosenthelockingdeviceoftheguiderail,installtheupperandlowermolds,andthenadjustthestrokeoftheguiderailuntiltherequirementsaremetandthefasteningdeviceislocked.Hitthesingle-strokestroke,aftertheuppermoldislocked,thelowermoldislockedafterhydraulicclamping,andacheckismadebeforeproduction.·31.Specialtools(pliers,hooks)mustbeusedwhendischargingormanuallyfeedingblanks.Itisstrictlyprohibitedtosendorremoveblanksbyhand.Asingleswitchwillhurtyourhandandadoubleswitch.Themachinemustnotleakoil,otherwiseitwillfalldown.Donotexposethepowersupply.Itisdangerous.32.Wearglovesandconcentratewhenpunchingironpieces,otherwiseyourhandswillbeinjured.33.Duringwork,firstchecktheequipmentforabnormaloperation,suchasunclearsingle,continuouscharging,pooroperationorelectricalfailure,immediatelystopthemachineintimetofindatechnicianondutytodealwithit.34.Itisstrictlyforbiddentousethefootswitchforthepunchpress,andalltheoriginalequipmentisdismantled.35.Whencleaningandinspectingtheequipment,thepowermustbecutoffbeforeoperation.36.Turnoffthepower,cleanandscrubtheworksurface,removethemoldformaintenanceandstorage,andcheckthelubricationsystemoilatacertaintimeeveryweek.

Turning distortion of stamping parts

1.Causesofturningandtwistingduringpunching 　　Intheprogressivedie,theshapeofthepunchedpartisformedbypunchingtheremainingmaterialaroundthepunchedpart.Themainreasonforblankinganddistortionofpunchingpartsistheinfluenceofpunchingforce.Duringpunching,duetotheexistenceofthepunchinggap,thematerialisstretchedononesideofthedie(thematerialwarpsupward)andcompressedonthesideofthepunch.Whenusingadischargeplate,usethedischargeplatetocompressthematerialtopreventthematerialonthediesidefromwarpingupward.Atthistime,thestressconditionofthematerialchangesaccordingly.Asthepressingforceofthedischargeplateincreases,thematerialonthesideofthedieisstretched(thecompressiveforcetendstodecrease),whilethematerialonthediesideiscompressed(thetensileforcetendstodecrease).Theturningofthestampingpartiscausedbythestretchingofthematerialonthediesurface.Therefore,whenpunching,pressingandcompressingthematerialisthekeytopreventthepunchedpartsfromturningandtwisting. 　　2.Methodstosuppressstampingpartsfromturningandtwisting 　　(1).Reasonablemolddesign.Intheprogressivedie,thearrangementoftheblankingordermayaffecttheprecisionofstampingpartsforming.Fortheblankingofsmallpartsofstampingparts,generally,alargerareaof​​punchingblankingisarrangedfirst,andthenasmallerareaof​​punchingblankingisarrangedtoreducetheimpactofthepunchingforceontheformingofthestampingpart. 　　(2).Squeezethematerial.Overcomethetraditionalmolddesignstructure,openthematerialholdinggaponthedischargeplate(thatis,whenthemoldisclosed,thedischargeplateandthediefit,andthegapbetweenthedischargeplateandthediewherethematerialisstoredisthematerialthicknesst-0.03~0.05mm).Inthisway,theunloadingplatemovessmoothlyduringstamping,andthematerialcanbecompacted.Atthekeyformingposition,thedischargeplatemustbemadeintoablockstructuretofacilitatethesolutionofthegrinding(pressing)losscausedbythepressingportionofthedischargeplatecausedbylong-timestamping,andthematerialcannotbecompacted. 　　(3).Addstrongpressurefunction.Thatistoincreasethesizeoftheblankingpartoftheblankinginsert(thethicknessofthenormalblankinginsertisH+0.03mm),inordertoincreasethepressureonthematerialonthesideofthedie,soastosuppresstheblankinganddistortionofthestampingpartduringpunching. 　　(4).Theedgeofthecuttingedgeofthepunchistrimmedtobeinclinedorcurved.Thisisaneffectivewaytoreducethecushion.Reducingthebuffercuttingforcecanreducethetensileforceonthematerialonthesideofthedie,therebyachievingtheeffectofsuppressingoverturninganddistortionofthestampingpart. 　　(5).Inthedailyproductionofthemold,careshouldbetakentomaintainthesharpnessofthecuttingedgeofthepunchandthedie.Whenthepunchingcuttingedgeisworn,thetensilestressofthematerialwillincrease,andthetendencyofturningandtwistingofthestampingpartwillincrease. 　　(6).Unreasonablepunchinggaporunevengapisalsothecauseofstampingpartsturninganddistortion,whichneedstobeovercome. 　　3.Handlingofcommonspecificproblemsinproduction 　　Indailyproduction,youmayencountersituationswherethepunchingsizeistoolargeortoosmall(whichmayexceedthespecifications)andthesizeofthepunchissignificantlydifferent.Inadditiontoconsideringthedesigndimensions,processingaccuracyandpunchingoftheformingpunchanddieInadditiontofactorssuchasclearance,thefollowingaspectsshouldbeconsideredtosolve. 　　(1).Whenthecuttingedgeisworn,thetensilestressofthematerialincreases,andthetendencyofturninganddistortionofthestampingpartincreases.Whenturningmaterial,thepunchingsizewillbecomesmaller. 　　(2).Thestrongpressureonthematerialwillcauseplasticdeformationofthematerial,whichwillcausethepunchingsizetobecomelarger.Whenreducingthepressure,thepunchingsizewillbecomesmaller. 　　(3).Endedgeshapeofpunch.Iftheendistrimmedwithaninclinedsurfaceoranarc,thepunchingforcewillnotbeeasilyturnedandtwistedduetotheslowingofthepunchingforce,sothepunchingsizewillbecomelarger.Whentheendofthepunchisflat(nobevelorarc),thepunchingsizewillberelativelysmall. 　　Inspecificproductionpractice,specificanalysisshouldbemadeforspecificproblemstofindasolutiontotheproblem. 　　Theabovemainlyintroducesthecausesandcountermeasuresofturninganddistortionofthepunchingpartswhenpunching.

Application of stamping parts

1.Causesofturningandtwistingduringpunching 　　Intheprogressivedie,theshapeofthepunchedpartisformedbypunchingtheremainingmaterialaroundthepunchedpart.Themainreasonforblankinganddistortionofpunchingpartsistheinfluenceofpunchingforce.Duringpunching,duetotheexistenceofthepunchinggap,thematerialisstretchedononesideofthedie(thematerialwarpsupward)andcompressedonthesideofthepunch.Whenusingadischargeplate,usethedischargeplatetocompressthematerialtopreventthematerialonthediesidefromwarpingupward.Atthistime,thestressconditionofthematerialchangesaccordingly.Asthepressingforceofthedischargeplateincreases,thematerialonthesideofthedieisstretched(thecompressiveforcetendstodecrease),whilethematerialonthediesideiscompressed(thetensileforcetendstodecrease).Theturningofthestampingpartiscausedbythestretchingofthematerialonthediesurface.Therefore,whenpunching,pressingandcompressingthematerialisthekeytopreventthepunchedpartsfromturningandtwisting. 　　2.Methodstosuppressstampingpartsfromturningandtwisting 　　(1).Reasonablemolddesign.Intheprogressivedie,thearrangementoftheblankingordermayaffecttheprecisionofstampingpartsforming.Fortheblankingofsmallpartsofstampingparts,generally,alargerareaof​​punchingblankingisarrangedfirst,andthenasmallerareaof​​punchingblankingisarrangedtoreducetheimpactofthepunchingforceontheformingofthestampingpart. 　　(2).Squeezethematerial.Overcomethetraditionalmolddesignstructure,openthematerialholdinggaponthedischargeplate(thatis,whenthemoldisclosed,thedischargeplateandthediefit,andthegapbetweenthedischargeplateandthediewherethematerialisstoredisthematerialthicknesst-0.03~0.05mm).Inthisway,theunloadingplatemovessmoothlyduringstamping,andthematerialcanbecompacted.Atthekeyformingposition,thedischargeplatemustbemadeintoablockstructuretofacilitatethesolutionofthegrinding(pressing)losscausedbythepressingportionofthedischargeplatecausedbylong-timestamping,andthematerialcannotbecompacted. 　　(3).Addstrongpressurefunction.Thatistoincreasethesizeoftheblankingpartoftheblankinginsert(thethicknessofthenormalblankinginsertisH+0.03mm),inordertoincreasethepressureonthematerialonthesideofthedie,soastosuppresstheblankinganddistortionofthestampingpartduringpunching. 　　(4).Theedgeofthecuttingedgeofthepunchistrimmedtobeinclinedorcurved.Thisisaneffectivewaytoreducethecushion.Reducingthebuffercuttingforcecanreducethetensileforceonthematerialonthesideofthedie,therebyachievingtheeffectofsuppressingoverturninganddistortionofthestampingpart. 　　(5).Inthedailyproductionofthemold,careshouldbetakentomaintainthesharpnessofthecuttingedgeofthepunchandthedie.Whenthepunchingcuttingedgeisworn,thetensilestressofthematerialwillincrease,andthetendencyofturningandtwistingofthestampingpartwillincrease. 　　(6).Unreasonablepunchinggaporunevengapisalsothecauseofstampingpartsturninganddistortion,whichneedstobeovercome. 　　3.Handlingofcommonspecificproblemsinproduction 　　Indailyproduction,youmayencountersituationswherethepunchingsizeistoolargeortoosmall(whichmayexceedthespecifications)andthesizeofthepunchissignificantlydifferent.Inadditiontoconsideringthedesigndimensions,processingaccuracyandpunchingoftheformingpunchanddieInadditiontofactorssuchasclearance,thefollowingaspectsshouldbeconsideredtosolve. 　　(1).Whenthecuttingedgeisworn,thetensilestressofthematerialincreases,andthetendencyofturninganddistortionofthestampingpartincreases.Whenturningmaterial,thepunchingsizewillbecomesmaller. 　　(2).Thestrongpressureonthematerialwillcauseplasticdeformationofthematerial,whichwillcausethepunchingsizetobecomelarger.Whenreducingthepressure,thepunchingsizewillbecomesmaller. 　　(3).Endedgeshapeofpunch.Iftheendistrimmedwithaninclinedsurfaceoranarc,thepunchingforcewillnotbeeasilyturnedandtwistedduetotheslowingofthepunchingforce,sothepunchingsizewillbecomelarger.Whentheendofthepunchisflat(nobevelorarc),thepunchingsizewillberelativelysmall. 　　Inspecificproductionpractice,specificanalysisshouldbemadeforspecificproblemstofindasolutiontotheproblem. 　　Theabovemainlyintroducesthecausesandcountermeasuresofturninganddistortionofthepunchingpartswhenpunching.