01 Mechanical nheyo
Iyo yekutanga michina yeextrusion iri nyore-sikuru inotenderedza muhumburumbira uye inosundira purasitiki kumberi.Iyo screw ichokwadi bevel kana rampu inotenderedzwa yakatenderedza yepakati layer.Chinangwa ndechekuwedzera kudzvanywa kuitira kuti ukunde kuramba kwakanyanya.Panyaya yeextruder, pane 3 marudzi ekupikisa kukunda: kukwesha kwezvikamu zvakasimba (feed) pamadziro evhavha uye kupesana pakati pavo apo screw inoshandura zvishoma zvishoma (feed zone);kunamatira kwekunyunguduka kune cylinder wall;Kupokana kwekunyungudika kune yayo yemukati Logistics kana ichisundidzirwa mberi.
Mazhinji screws ishinda-kurudyi, seaya anoshandiswa mukugadzira matanda nemichina.Kana akatariswa nechekumashure, anenge achitsaukira kune rimwe divi nekuti anoita nepaanogona napo kutenderedza dhiramu kumashure.Mune mamwe mapatya screw extruder, maviri screws anotenderera akatarisana mumasilinda maviri uye anoyambuka mumwe nemumwe, saka imwe inofanira kunge yakatarisana nekurudyi uye imwe inofanira kunge yakatarisana kuruboshwe.Mune mamwe masiruuru maviri ekurumwa, masiruuru maviri anotenderera akananga kudivi rimwe saka anofanirwa kunge aine kutaridzika kwakafanana.Zvisinei, mune zvose zviri zviviri, kune mathrust bearings anotora masimba okudzokera shure, uye nheyo yaNewton ichiri kushanda.
02 Thermal musimboti
Extrudable mapurasitiki ari thermoplastics-anonyunguduka kana apisa uye anoomesa zvakare kana atonhodzwa.Kupisa kwepurasitiki yakanyunguduka kunobva kupi?Feed preheating uye cylinder / die heaters zvinogona kushanda uye zvakakosha pakutanga-up, asi simba rekuisa mota - kupisa kunopisa kunogadzirwa mucylinder kana mota ichitenderedza sikuru kupikisa kunyungudika kwe viscous - ndiyo inonyanya kukosha kupisa. kune ese mapurasitiki, kunze kweadiki masisitimu, yakaderera-speed screws, high melt tembiricha mapurasitiki, uye extrusion coating applications.
Kune mamwe maoperation ese, zvakakosha kuti tizive kuti hita ye cartridge haisi iyo yekutanga kupisa sosi iri kushanda uye saka ine mhedzisiro shoma pane extrusion kupfuura zvatingatarisira.Rear cylinder tembiricha inogona ichiri yakakosha nekuti inokanganisa chiyero icho solids inotakurwa mu meshing kana feed.Iyo tembiricha yekufa uye mold inofanirwa kunge iri tembiricha inonyungudika inodiwa kana padyo pairi, kunze kwekunge ichishandiswa kune chimwe chinangwa chakadai sevarnishing, kugovera kwemvura, kana kudzora kudzvinyirira.
03 Deceleration musimboti
Mune akawanda extruder, shanduko mukumhanyisa screw inowanikwa nekugadzirisa mota kumhanya.Iyo mota inowanzo tenderera ichimhanya inosvika 1750rpm, asi iyo inomhanya zvakanyanya kune imwe extruder screw.Kana ikatenderedzwa nekumhanya kwakadaro, kupisa kwakanyanyisa kunogadzirwa, uye nguva yekugara yepurasitiki ipfupi kuti igadzirire yunifomu, yakanyatso kunyunguduka.Yakajairika deceleration ratios iri pakati pe10:1 ne20:1.Danho rekutanga rinogona kunge rakarongedzerwa kana kuti pulley, asi nhanho yechipiri yakagadzirirwa uye screw yakaiswa pakati pegiya hombe rekupedzisira.
Mune mimwe michina inofamba zvishoma nezvishoma (senge twin screws for UPVC), panogona kunge paine 3 deceleration stages uye kumhanya kwepamusoro kunogona kunge kwakadzikira se30 rpm kana pasi (reshiyo inosvika 60:1).Kune rimwe divi rakanyanyisa, mamwe marefu mapatya masiruru ekukuchidzira anogona kumhanya pa600rpm kana kukurumidza, saka yakaderera zvakanyanya yekudzikira inodiwa pamwe nekutonhora kwakawanda kwakadzika.
Dzimwe nguva chiyero chekudzikisa hachienderane nebasa-yakawanda simba rinosara risina kushandiswa-uye zvinokwanisika kuwedzera pulley yakaiswa pakati pemota uye yekutanga deceleration nhanho inoshandura iyo yakanyanya kumhanya.Izvi zvinogona kuwedzera screw speed kupfuura muganhu wekare kana kuderedza kukurumidza, zvichiita kuti sisitimu ishande pamwero mukuru wekumhanya kwepamusoro.Izvi zvinowedzera simba riripo, zvinoderedza amperage uye kudzivirira matambudziko emota.Muzviitiko zvese izvi, kuburitsa kunogona kuwedzera zvichienderana nechinhu uye kutonhora kwayo kunoda.
Press contact:
Qing Hu
Langbo Machinery Co.,Ltd
No.99 Lefeng Road
215624 Leyu Town Zhangjiagang Jiangsu
Tel.: +86 58578311
EMail: info@langbochina.com
Webhu: www.langbochina.com
Nguva yekutumira: Jan-17-2023