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1、技师论文（终稿）2010shandongmaintenanceelectricaltechnicianprofessionalpaperBasedonthePLC'ssealingmachine,thefrequencysavingenergyischangedControlsystemdiscussionStudentname:mengfanUnit:aclassofmaintenanceelectricianinshandongcoaltechnologycollegeAdvisor:zhangqingguo,langnavy,xuehuiDate:
2、May2010BasedonthePLC'ssealingmachine,thefrequencyenergysavingcontrolsystemisdiscussed--author:mengfan【abstract】：Thesealingmachineisthemachinethatsealsthecontainerafterthecontainerisdressed.Withtheimprovementofproductionandlivingstandard,thesealingmachineinChinahasdevelopedrapidly
3、inrecentyears・Byreferencetointernationalsametypeproducts,onthebasisofthedigestion,absorption,selfdevelopment,technologyhadtheverybigenhancement,butinthenewandhightechnologyandnewtechnologydevelopmentandforeignandlargegap,suchastheautomationofthewholemachineisnothigh,somealsousela
4、rgeamountsofrelaycontrolsystem,energyconsumption,timeconsuming,workisnotsafeandreliable・Thisarticlefromtheaspectsofenergysaving,timesaving,humanizeddesignthree,apexautomaticcontrolequipment,PLCandfrequencyconverterisusedfortransformationofpreviousrelaycontrolsystem,soastopromotet
5、hedevelopmentofthetechnologyupdates,faster・[keywords]:S7-200PLC,inverter,sealingpackagingmachine,temperaturecontrol,solidstaterelaySSRProjectbackgroundandanalysisTheprocessflowofthesealingpackingCombiningtheabove,itsprocessincludesthefollowingsteps:(1)connectedtothepowersupply,th
6、esealingpackingmachineagenciesbegantowork,electricheatelectricheatingelement,makeupanddownheatingblocksrosesharply,andthroughtemperaturePIDcontrolsystemtoadjusttotherequiredtemperature,embossingwheelrotation,accordingtotheneedofthecoolingsystemtowork,conveyorbelt,andthecontroldev
7、icetoadjusttotheidlestate・(1)whenequippedwithgoodspackagingisthefront-endequipmenttransportedtothesealingpackingmachineconveyorbelt,bagsealingpartsthroughtheguidegrooveHisautomaticallyintorun,betweenthetwosealingwithFEandintotheheatingarea,heatingblocksofheatthroughthesealingbelt
8、transmissiontothethinfilmbyhotmeltsealin
