Zipangizo zazikulu zopangira umba ndi makina osindikizira a hydraulic. Ntchito ya makina osindikizira a hydraulic pakukanikiza ndi kuika mphamvu pa pulasitiki kudzera mu nkhungu, kutsegula nkhungu ndikutulutsa chinthucho.
Kuumba mokakamiza kumagwiritsidwa ntchito makamaka popanga mapulasitiki oikamo zinthu zotenthetsera. Pa mapulasitiki otenthetsera, chifukwa chofuna kukonzekera pasadakhale, amafunika kutenthedwa ndi kuzizira mosinthasintha, kotero kuti nthawi yopangira ndi yayitali, mphamvu yopangira ndi yochepa, ndipo mphamvu yogwiritsira ntchito ndi yayikulu. Kuphatikiza apo, zinthu zokhala ndi mawonekedwe ovuta komanso kukula kolondola sizingakanidwe. Chifukwa chake, chizolowezi chachikulu chopangira kupanga mokakamiza ndi jakisoni ndi chotsika mtengo.
Themakina opukutira opukutira(kukanikiza mwachidule) komwe kumagwiritsidwa ntchito popanga makina ndi makina osindikizira a hydraulic. Mphamvu yake yokanikiza imawonetsedwa mu matani odziwika, nthawi zambiri, pali makina osindikizira a 40t ﹑ 630t ﹑ 100t ﹑ 160t ﹑ 200t ﹑ 250t ﹑ 400t ﹑ 500t. Pali makina osindikizira oposa 1,000. Zomwe zili mu makina osindikizira ndi monga matani ogwiritsira ntchito, matani otulutsira madzi, kukula kwa platen kuti akonze die, ndi ma stroke a piston yogwiritsira ntchito ndi piston yotulutsira madzi, ndi zina zotero. Kawirikawiri, ma tempuleti apamwamba ndi otsika a makina osindikizira ali ndi zida zotenthetsera ndi zoziziritsira. Zigawo zazing'ono zingagwiritse ntchito makina osindikizira ozizira (osatenthetsa, madzi ozizira okha) kuti apange mawonekedwe ndi kuziziritsa. Gwiritsani ntchito makina otenthetsera okha kuti agwiritsidwe ntchito popanga pulasitiki yotentha, yomwe ingasunge mphamvu.
Malinga ndi kuchuluka kwa makina osindikizira okha, makina osindikizira amatha kugawidwa m'magulu osindikizira amanja, makina osindikizira odziyimira okha, ndi makina osindikizira odziyimira okha. Malinga ndi kuchuluka kwa zigawo za mbale yathyathyathya, akhoza kugawidwa m'magulu osindikizira okhala ndi zigawo ziwiri ndi angapo.
Makina osindikizira a hydraulic ndi makina osindikizira omwe amayendetsedwa ndi hydraulic transmission. Mukakanikiza, pulasitiki imayikidwa kaye ku nkhungu yotseguka. Kenako ikani mafuta osindikizira ku silinda yogwirira ntchito. Motsogozedwa ndi mzati, pisitoni ndi mtanda wosunthika zimapita pansi (kapena mmwamba) kuti zitseke nkhungu. Pomaliza, mphamvu yopangidwa ndi makina osindikizira a hydraulic imatumizidwa ku nkhungu ndikugwira ntchito pa pulasitiki.
Pulasitiki yomwe ili mkati mwa nkhungu imasungunuka ndi kufewa ikatenthedwa. Nkhungu imadzazidwa ndi kupanikizika kuchokera ku makina osindikizira a hydraulic ndipo zimachitika mankhwala. Kuti mutulutse chinyezi ndi zinthu zina zosasunthika zomwe zimapangidwa panthawi ya condensation reaction ya pulasitiki ndikuwonetsetsa kuti chinthucho chili bwino, ndikofunikira kuchepetsa kupanikizika ndi kutulutsa utsi. Kukweza ndi kusunga nthawi yomweyo. Panthawiyi, utomoni womwe uli mu pulasitiki umapitilizabe kuchita zinthu zotsutsana ndi mankhwala. Pambuyo pa nthawi inayake, mkhalidwe wolimba wosasungunuka komanso wosasungunuka umapangidwa, ndipo mawonekedwe olimba amamalizidwa. Nkhungu imatsegulidwa nthawi yomweyo, ndipo chinthucho chimachotsedwa mu nkhungu. Nkhungu ikatsukidwa, gawo lotsatira la kupanga likhoza kupitirira.
Kuchokera pa ndondomeko yomwe ili pamwambapa, tingaone kuti kutentha, kupanikizika, ndi nthawi ndizofunikira kwambiri pakuumba makina. Pofuna kupititsa patsogolo ntchito ya makina komanso chitetezo ndi kudalirika kwa ntchitoyo, liwiro logwirira ntchito la makinawo ndi chinthu chofunikira chomwe sichinganyalanyazidwe. Chifukwa chake, makina osindikizira a pulasitiki ogwiritsidwa ntchito pokanikiza ayenera kukwaniritsa zofunikira izi:
① Kukanikiza kuyenera kukhala kokwanira komanso kosinthika, ndipo kumafunikanso kuti kufikire ndikusunga kuthamanga komwe kwakonzedweratu mkati mwa nthawi inayake.
② Mtambo wosunthika wa makina osindikizira a hydraulic ukhoza kuyima ndikubwerera nthawi iliyonse mukayamba kugwedezeka. Izi ndizofunikira kwambiri poyika ma mold, pre-press, batch charging, kapena kulephera.
③ Mtanda wosunthika wa makina osindikizira a hydraulic ukhoza kulamulira liwiro ndikugwiritsa ntchito mphamvu yogwira ntchito nthawi iliyonse mu stroke. Kuti ukwaniritse zofunikira za nkhungu za kutalika kosiyanasiyana.
Mzere wosunthika wa makina osindikizira a hydraulic uyenera kukhala ndi liwiro lachangu mu stroke yopanda kanthu nkhungu yachimuna isanakhudze pulasitiki, kuti ifupikitse kuzungulira kwa kukanikiza, kukulitsa kupanga kwa makina ndikupewa kuchepetsa kapena kuuma kwa magwiridwe antchito a pulasitiki. Nkhungu yachimuna ikakhudza pulasitiki, liwiro lotseka nkhungu liyenera kuchepetsedwa. Kupanda kutero, nkhungu kapena choyikapo chingawonongeke kapena ufa ungatsukidwe kuchokera ku nkhungu yachikazi. Nthawi yomweyo, kuchepetsa liwiro kungachotsenso mpweya womwe uli mu nkhungu.
Nthawi yotumizira: Epulo-07-2023
