Umkhiqizi ochwepheshe wemishini yokushisa ukushisa.
Ulimi
Umkhiqizi ochwepheshe wemishini yokushisa ukushisa.
Isimiso Somshini Wokwenza I-Vacuum: Ukwakhiwa kwe-vacuum kubizwa nangokuthi ukwakha i-thermoplastic, Le nqubo ihilela ukushisa nokuthambisa amashidi e-thermoplastic (isb.
Umshini wokwenza i-vacuum uhlanganisa izingxenye ezimbalwa ezifana nesistimu yokubopha, isistimu yokufudumeza, i-vacuum kanye nesistimu yomoya ecindezelwe kanye nesikhunta.
Lapho ishidi lepulasitiki libunjwa, ishidi lilungiswa kudivayisi yokubopha. Ku-thermoforming yemishini ye-thermoforming yenhloso evamile kanye nenhlanganisela isetshenziselwa ukwenza lula ukulungiswa kosayizi abahlukahlukene bedivayisi yokuhlanganisa amashidi. Kwezinye izimo, wonke umshini wokubumba ufakwe isethi yamafreyimu okubamba.
Isistimu yokubopha kufanele ithuthukiswe ngezilawuli ezizenzakalelayo ukuze kuzuzwe ukusebenza ngokushesha, ngaleyo ndlela kuthuthukise ingxenye yekhwalithi nokusebenza kahle kokukhiqiza.
Ishidi le-thermoplastic kanye nefilimu yenqubo yokwenza i-vacuum, enye yezinqubo eziyinhloko ukushisisa kweshidi.Ubude besikhathi sokushisa nokusebenza kahle kuncike ezintweni ezihlanganisa ukwakheka kwe-heater, inertia yokushisa engaphezulu kwe-radiation, ibanga leshidi ukuya ku-heater, ama-coefficients wokumuncwa kwezinto ezibonakalayo, kanye nezakhiwo ze-thermophysical. Ama-heaters asetshenziswa kakhulu ama-heater kagesi, ama-crystal emitters nama-infrared heater.
Uhlelo lwevacuum luqukethe amaphampu evacuum, amathangi, amavalvu, amapayipi kanye negeji yomshini wokukhipha umoya, njll., evamise ukusetshenziswa lapho kwakhiwa uhlobo oluhlukile lwephampu yevacuum, ivacuum yalawo maphampu kufanele ifinyelele ku-0.07 ~ 0.09 Mpa (520mmHg) noma ngaphezulu. Ithangi lokugcina igesi ngokuvamile liyibhokisi eliyisilinda elishiselwe ngamapuleti ensimbi amancane futhi linendawo eyisiyingi. Umthamo wethangi lokugcina igesi kufanele okungenani ube uhhafu womthamo wegumbi lokubumba elikhulu kunawo wonke. Amapayipi e-vacuum kufanele afakwe ama-valve afanele ukulawula umthamo omncane we-vacuum.
Amandla enjini yephampu yevacuum (imvamisa engu-2-4 kW kumasistimu amakhulu/esivinini esikhulu) anqunywa usayizi wemishini kanye nezidingo zokukhiqiza. Amapayipi e-vacuum adinga ama-valve okulawula ukugeleza anembile. Ubukhulu besistimu ye-vacuum central buncike ezidingweni ezithile zokukhiqiza nokuthuthukiswa kwefekthri.
Uhlelo lwe-pneumatic luqukethe ama-compressor, amathangi omoya, ama-valve, namapayipi. Imishini yokubumba ivamise ukudinga umoya ocindezelwe ongu-0.4-0.5 MPa, ohlinzekwa ngama-compressor e-piston ahlanganisiwe noma ama-screw compressor wesitshalo aphakathi nendawo. Ingaphinda isebenzise i-screw air compressor yonke isitshalo.
Umoya ocindezelwe ngaphezu kwenani elikhulu kufanele lisetshenziswe ekwakheni, kukhona lapho ingxenye yesikhunta semikhiqizo yokuqala ngaphandle kokupholisa kanye nokukhwabanisa kwefreyimu yesikhunta kanye neshidi eligijimayo nezinye izingxenye zomshini njengamandla okusebenza.
Ukuze kuthuthukiswe ukusebenza kahle kokukhiqiza, imikhiqizo eyenza i-vacuum ngokuvamile idingeka ukuthi ipholiswe ngaphambi kokudilizwa. Ngokufanelekile, izindawo zangaphakathi nezingaphandle zezingxenye ezithintana nesikhunta zipholile, futhi kungcono ukusebenzisa isikhunta esinamakhoyili okupholisa angaphakathi. Ezibunjweni ezingezona ezensimbi, njengokhuni, ukhonkolo, amapulasitiki aqiniswe ngefayibha yengilazi, i-epoxy resin nezinye isikhunta, ngoba akwenzeki ukusebenzisa ukupholisa amanzi, kungashintshwa kube ukupholisa komoya, futhi kunganezelwa enkungwini yamanzi ukuze kuphole indawo engaphandle yezingxenye ezakha i-vacuum.
Ukupholisa okungokwemvelo kukhiqiza izingxenye ezikhulula ukucindezeleka ezinokumelana nomthelela othuthukisiwe. Nakuba ukupholisa amanzi kwandisa ukukhiqiza, kungase kubangele ukucindezeleka okukhulu kwangaphakathi.
Ukubhidliza kuhlanganisa ukukhipha umkhiqizo esikhunjeni, okungenzeka kube yi-concave noma convex. Ezimweni eziningi, ukufinyela okushisayo kubangela ukuthi ingxenye ibambelele ngokuqinile ekubunjeni. Ngakho-ke ukubhidliza kufezwa ngokusebenzisa ukucindezela komoya obuyela emuva ngokusebenzisa amachweba we-vacuum noma amashaneli omoya acindezelwe.
Ikakhulukazi isikhunta esine-slope esincane sokukhululwa noma esinesikhunta se-concave, isikhunta siphinde sikhishwe ngokusebenzisa indlela yokukhulula yokungqubuzana noma ukudlidliza, ngezinye izikhathi ngokusebenzisa i-ejenti yokukhululwa eshidini kanye nesikhunta, noma ngokufafaza ubuso besikhunta ngokwelashwa kwe-Teflon.
Uhlelo lokulawula ngokuvamile luhlanganisa ukwakhiwa kwevacuum, ukuqedela nezinye izinqubo, okuhlanganisa amathuluzi, amamitha, amapayipi, amavalvu namapharamitha okulawula kanye nezindlela zokuvula. Izindlela zokulawula ziyi-manual, i-electromechanical automatic control, i-computer control, njll.
Umkhiqizi ochwepheshe wemishini yokushisa ukushisa.
