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CIRUS heat sealing system for thermoplastic films

CIRUS heat sealing system for thermoplastic films

2019-05-14 17:34
RESISTRONimpulsesealingsystemforthermoplasticfilms.Modernpackaginghastomeetincreasinglyhighqualityandvisualrequirements.Everfastercycleratesmustbereconciledwiththethinnerandhencemoresensitivefilmtypeswhichareinusetoday.Thismakesitevenmoredifficulttoguaranteearepeatablesealingprocess.The“RESISTRONsealingsystem”developedbyROPEXisacompletesystemconfigurationcomprisedofseveralapplication-specificcomponents.ThetwomostimportantofthesecomponentsaretheREStemperaturecontrollerandtheRESsealingtool.TheRESsealingtoolisaheatsealingbarwithaheatsealingbandandamatchingcounterbarwhicharetailoredtoyourindividualsealingapplication.Bycombiningitwiththesystemcomponents,youobtainacustomizedsystemconfiguration.ImpulsesealingwithheatsealingbandsHeatsealingbandsarebasicallythinmetalstripsorwiresmadefromaspecialresistancealloy,whichmustsatisfycertainphysicalrequirements.Thesestripsareprofiled,formedandcoateddependingontheapplication.TheheatsealingbandperformsadualfunctionintheRESISTRONcontext.Whensuppliedwithpower,itservesasaheatsourceforthesealingprocess.Atthesametime,itactsasatemperaturesensorwhichchangesitsresistanceasthetemperaturerises.TheabilityoftheREStemperaturecontrollertomeasurethisresistancechangerapidlyduringtheheating-upandcooling-downphasesiscrucialforthishighlydynamicandsensorlesscontrolconcept.Thisexplainstherigorousspecificationswhicharedefinedfortheheatsealingbandalloy.Themostimportantcharacteristicsofaheatsealingbandare:TemperaturecoefficientoftheresistanceSpecificresistanceExpansionbehaviorThesecharacteristics,alongwithyourheatsealingapplication,haveadecisiveinfluenceonthespecificationsoftheelectricalcomponentsandthemechanicsofthesealingbar.Theoverallsystemisclearlyverycomplexandallsystemcomponentsneedtointeractoptimallywithoneanother.Ouradvicetoyouistohaveyourheatsealingapplicationcalculatedbyoursupportteam.Acompletesystemcanthenbeputtogetherforyouincludingallessentialcomponentsandsettings. HowtheRESISTRONtemperaturecontrollerworksInordertoobtainanoptimalapplication,thevalueofeachparametermustbedeterminedandthesequenceofstepsadaptedtotheheatsealingtask.ObservingtheseparametersregardlessoftheconditionsinwhichaproductionmachineoperatesisthekeychallengefortheRESISTRONtemperaturecontroller.Extremelypreciseandfastmeasurementsareessentialinordertoaccuratelydetermineandcontrolthetemperatureofaheatsealingband.InaheatsealingsystemwithaRESISTRONtemperaturecontroller,thisisachievedwithoutsensorsbymeasuringthevoltageandcurrentattheheatsealingband.Themeasurementsarerepeatedfiftyorsixtytimesasecond.TheACTUALtemperaturecanthenbecalculatedfromthevoltageandcurrentvaluesusingtheheatsealingband’sresistancecharacteristic.ItissubsequentlycomparedwiththeSETtemperatureandcorrectedifthedifferenceisnotzero.ThisisdonebyalteringthetransformervoltageuntilACT=SET.Evenverylowthermalloadsareinstantlydetectedandcanbecorrectedquicklyandprecisely.Apowercontrollerontheprimarysideofthetransformerworksasanactuator.Sincetheprimarycurrentwhichiscontrolledismuchlower,theheatlossesarealsosmaller,pavingthewayforthecompactcontrollerdesignwhichusersvaluesohighly.HeatsealingbarswithaheatsealingbandTheheatsealingbarwhichactsasthesubstructurefortheheatsealingbandisgenerallymadefromaluminum.Itincorporatesallofthedesignelementsthatarenecessaryinorderforthebandtodoitsjobreliably,forexample:BarendblockstocompensateexpansionElectricalconnectionsforthehigh-currentandmeasurementcablesFixationfortheheatsealingbandHolesforcoolant(ifrequired)InsulatinglayersfortheheatsealingbandThemostpopulardesignisastraightsealingbarwitharectangularsection,whichcomesinlengthsrangingfromafewcentimeterstoseveralmeters.Contouredsealingbarscanbesuppliedwithboth2Dcontours(e.g.circular,angularorcurved)and3Dcontoursforsealingtubesorspouts.Specificdesignrulesapplytothiskindoftool,andhighprecisionisvitaltoachieveahomogeneoustemperaturedistribution.OurdevelopersuseadvancedCADsystemsforthispurpose,tocreateathree-dimensionalviewoftheheatsealingbar.TheCADfilecanthenbesenttothecustomer,whointegratesitintothecompany’sownCADenvironment.HeatsealingbandAsalreadymentionedelsewhere,theheatsealingbandisthemaincomponentinthesealingprocess,whichiswhyparticularattentionshouldbepaidtoanaccurategeometry,aprofilewhichisadequatefortheprocessandcopperedorsilveredpassivezones.Ofcourse,theelectricalcharacteristicsoftheheatsealingbandalloymustbecompliedwith,suchasthespecificresistanceandtemperaturebehavior.Aheatsealingbandwhichisoptimallymatchedtothesubstructureiscrucialtothesuccessofyourimpulsesealingsystem.Wedesignheatsealingbandswhichareindividuallytailoredtoyourrequirementsaswellasamatchingsubstructureonrequest.CustomizedsolutionsIsyourapplicationunusual?Doesitneedacustomizedsolution?Ifso,you’vecometotherightplace!ROPEXhaslongstandingexperienceinimpulsesealingandthedevelopmentofheatsealingapplications,whichmakesusoptimallyqualifiedtoproviderelevantanswersnomatterhowuniquetheproblem.Wedesignaheatsealingbarandbandthatfityourrequirementsprofileandputtogetherexactlythesealingsystemyou’relookingfor.Wecanalsoperform
Our expertise - your success

Our expertise - your success

2019-05-27 19:01
If you take a closer look at the heat seal system, you will find it is usually very complicated because it consists of several different components, all of which must interact in an optimal way. Each of these components has a specific impact on the results. We can't simply assume that every user has expertise at their fingertips; after all, this technology may only be needed occasionally. The ROPEX Application Support department can help you solve these problems and help you solve all your customer problems. Our experienced technicians and engineers provide targeted support during the project development phase and beyond - from the initial contact to the commissioning of the complete heat seal system.
Micro motor automation equipment

Micro motor automation equipment

2019-05-27 18:59
The development of the micro-motor industry has a wide variety, and the average amount of motor used in each household represents a country's progress. Micro-motors have become an important component of industrial machinery and equipment, electrical products, automobiles, and other products.
Common troubleshooting methods for automation equipment

Common troubleshooting methods for automation equipment

2019-05-27 18:58
With the continuous introduction of manufacturers, automation equipment has become a weapon for the majority of manufacturers to improve efficiency and reduce costs. Any mechanical automation is composed of three parts: the actuator, the sensor part and the controller part. When the automatic machine suddenly fails to work, or the program is in disorder, it is necessary to detect the fault.