Blow molding ndi njira yomwe imagwiritsidwa ntchito kwambiri popanga zida zapulasitiki zopanda kanthu. Ndiwotchuka kwambiri popanga matumba, mabotolo ndi zinthu zina zosiyanasiyana. Pamtima pa nkhonya akamaumba ndondomeko ndimakina opangira magetsi, zomwe zimathandiza kwambiri poumba zinthu zapulasitiki kukhala chinthu chomwe mukufuna. M'nkhaniyi, tiwona magawo anayi a kuwombera nkhonya ndi momwe makina opangira nkhonya amathandizira gawo lililonse.
Musanalowe mu gawo lililonse, ndikofunikira kumvetsetsa kuti kuumba nkhonya ndi chiyani.Kujambula kwamphamvundi njira yopangira yomwe imaphatikizapo kuwomba chubu chapulasitiki chotenthetsera (chotchedwa parison,) kuti chikhale chikombole kuti chipange chinthu chopanda kanthu. Njirayi ndiyothandiza komanso yotsika mtengo, zomwe zimapangitsa kukhala chisankho chodziwika bwino popanga zinthu zambiri zamapulasitiki.
Magawo anayi owumba nkhonya:
Kuwomba akamaumba akhoza kugawidwa mu magawo anayi osiyana: extrusion, kupanga, kuzirala ndi ejection. Gawo lirilonse ndilofunika kwambiri pakuchita bwino kwa ndondomeko yowomba, ndipo makina opangira mphutsi amathandizira gawo lililonse.
1. Extrusion
Gawo loyamba la kuumba nkhonya ndi extrusion, kumene pellets pulasitiki amadyetsedwa mu makina nkhonya akamaumba. Themakina opangira magetsiimatenthetsa mapepala apulasitiki mpaka atasungunuka, kupanga chubu chosalekeza cha pulasitiki yosungunuka yotchedwa parison. Njira ya extrusion ndi yofunika kwambiri chifukwa imatsimikizira makulidwe ndi kufanana kwa parison, zomwe zimakhudza mwachindunji ubwino wa mankhwala omaliza.
Panthawi imeneyi, makina opangira mphutsi amagwiritsa ntchito screw kapena plunger kukankhira pulasitiki yosungunuka mu nkhungu kuti apange parison. Kutentha ndi kupanikizika kuyenera kuyang'aniridwa mosamala kuti pulasitiki isungunuke ndipo imatha kupangidwa mosavuta m'magawo otsatirawa.
2. Kupanga
Kamodzi parison apangidwa, siteji akamaumba analowa. Munthawi imeneyi, parisonyo imangiriridwa mu nkhungu kuti ipange chomaliza. Makina opangira ma blower amalowetsa mpweya mchipindacho, ndikupangitsa kuti ukule mpaka utadzaza nkhunguyo. Njira imeneyi imadziwika kuti kuumba nkhonya.
Mapangidwe a nkhungu ndi ofunika kwambiri chifukwa amatsimikizira kukula komaliza ndi kutha kwa pamwamba pa mankhwala. Panthawiyi, makina opangira nkhonya amayenera kuwongolera bwino kuthamanga kwa mpweya ndi kutentha kuti zitsimikizire kuti parisonyo imakula mofanana ndikutsatira makoma a nkhungu.
LQ AS jekeseni-wotambasula-kuwomba-womba makina ogulitsa yogulitsa
1. Chitsanzo cha AS chimagwiritsa ntchito mawonekedwe a malo atatu ndipo ndi oyenera kupanga zitsulo zapulasitiki monga PET, PETG, ndi zina zotero.
2. Ukadaulo woumba jekeseni-wotambasula uli ndi makina, nkhungu, njira zopangira, ndi zina. Liuzhou Jingye Machinery Co., Ltd. wakhala akufufuza ndikupanga lusoli kwa zaka zoposa khumi.
3. Makina athu opangira jakisoni-Stretch-Blow ndi malo atatu: jekeseni preform, kutambasula & kuwomba, ndi ejection.
4. Izi limodzi siteji ndondomeko akhoza kukupulumutsani mphamvu zambiri chifukwa mulibe kutenthetsanso preforms.
5. Ndipo akhoza kuonetsetsa inu bwino botolo maonekedwe, popewa preforms kukanda motsutsana wina ndi mzake.
3. Kuziziritsa
Parishiyo ikatenthedwa ndikuwumbidwa, imalowa mugawo lozizirira. Gawoli ndi lofunikira pochiritsa pulasitiki ndikuwonetsetsa kuti chomalizacho chimakhalabe ndi mawonekedwe ake.Makina opangira magetsinthawi zambiri amagwiritsa ntchito njira zozizirira kapena mpweya kuti achepetse kutentha kwa gawo lopangidwa.
Nthawi yozizira imasiyanasiyana malinga ndi mtundu wa pulasitiki wogwiritsidwa ntchito komanso makulidwe a mankhwala. Kuziziritsa koyenera ndikofunikira chifukwa kumakhudza magwiridwe amakina komanso mtundu wonse wa chinthu chomaliza. Ngati kuziziritsa sikukuyendetsedwa bwino, kungayambitse warpage kapena zolakwika zina mu mankhwala omalizidwa.
4. Kutulutsa
Gawo lomaliza la kuumba nkhonya ndi ejection. Chidacho chikazirala ndi kulimba,makina opangira magetsiamatsegula nkhungu kuti amasule chomalizidwa. Gawoli liyenera kuchitidwa mosamala kuti asawononge mankhwala. Makinawa amatha kugwiritsa ntchito mkono wa robot kapena pini ya ejector kuti athandizire kuchotsa gawolo mu nkhungu.
Pambuyo pa ejection, mankhwalawa angafunikire kudutsa njira zina zopangira, monga kudula kapena kuyang'anitsitsa, asanapakidwe ndi kutumizidwa. Kuchita bwino kwa gawo la ejection kumatha kukhala ndi vuto lalikulu pakupanga kwanthawi zonse ndipo ndi gawo lofunikira kwambiri pakuwumba nkhonya.
Blow molding ndi njira yabwino komanso yosunthika yopangira makina omwe amadalira momwe makina opangira amawomba amagwirira ntchito. Pomvetsetsa magawo anayi opangira kuwombera (extrusion, kupanga, kuziziritsa ndi kutulutsa), ndizotheka kuzindikira kupanga zinthu zapulasitiki zopanda kanthu. Gawo lililonse limagwira ntchito yofunika kwambiri powonetsetsa kuti chinthu chomaliza ndi chabwino komanso chosasinthasintha.
Pomwe kufunikira kwazinthu zamapulasitiki apamwamba kukupitilira kukula m'mafakitale osiyanasiyana, kupita patsogolokuwombera mphepoukadaulo ndi makina zitha kukulitsa luso komanso kuthekera kwa njira yowomba. Kaya ndinu opanga, mainjiniya, kapena mumangokonda dziko lazopanga mapulasitiki, kumvetsetsa magawowa kudzakulitsa kumvetsetsa kwanu kwazovuta komanso zatsopano zomwe zimapangidwira makina owumba.
Nthawi yotumiza: Dec-09-2024