Web Handling and Winding

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1、TAPPI2010PLACEExtrusionCoatingShortCourseCharleston,SCApril24th–26th,2010ChallengesofWEBHANDLINGANDWINDINGbyR.DuaneSmithProductManagerSpecialtyWindingBlackClawsonConvertingMachinery/Davis-StandardLLC90MinutesofFunFilledAdventure60min.-TutorialonChallengesofW

2、ebHandlingandWinding30min.–CaseStudyAdventureapplyingWebHandlingandWindingPrinciplesintherealworld!ChallengesofWEBHANDLINGANDWINDINGCHALLENGESTHATWEFACEINUPSTATENEWYORKBlackClawsonConvertingMachinery/Davis-StandardLLCLocatedinBeautifulFulton,NYInthenext60min

3、utes-WeWillBeDiscussingLotsOfChallenges•ChallengesinWebHandling•ChallengesinWebSpreading•ChallengesinSlitting•ChallengesinWinding•ChallengesinEliminatingRollandWebDefectsGoalofthisPresentationThatyouwilltakebackatleastafewGoldNuggetsfromtheinformationpresent

4、edandapplythesetoimprovetheProductivity&ProfitabilityofyouroperationWhatistheChallengeinWebHandling?Answer-ConveytheWebStraightthroughtheProcessWithoutWrinklesWebTensionInAPerfectWorld-WouldnotneedWebTensionFloatTheSheetStraightThroughtheLineWithoutGeneratin

5、gWrinklesUnfortunatelyRollersarenotPerfectWebsarenotPerfectWhataretheChallengesofWebHandlingRollerDesign?WebHandlingRollsDESIGNCONSIDERATIONS•HavingtheRightRollerMaterial•HavingtheRightRollerDiameter•HavingtheRightRollerBearings•HavingtheRightRollerSpacing•T

6、heChallengesofAirGreasing•WebHandlingRollerAlignmentROLLMATERIALS•ChromePlatedSteel-•CarbonFiberCompositeNormallyUsedwithRollMaterialsforSpecialPaper&PaperboardApplicationsi.e.Thin•AnodizedAluminum-Films&Non-wovensUsedforFilms,Light+Lessweight&inertiaPaper&A

7、luminumthanAluminumFoils-LessDurablethanMetal-MoreDifficulttoManufacture,thereforeThecostofSteelandmoreExpensiveAluminumareaboutequalHoweverCostsareComingDownIDLERROLLDIAMETERDiameterLengthRollDiameterLENGTH-Generally=16orLess,i.e.@64”=4”DIAMETER-Paperboardo

8、rStiffMaterial,ConsiderBendRadius-RollDeflection,RuleofThumb:-Generally.010”pereach100”ofRollFace-Less…IfHandlingUnsupportedFoil-More…IfHandlingExtensibleWebMaterialsIDLERROLLBEARINGSLowfriction