Moetsi oa litsebi oa mechini ea thermoforming.
Puo
Moetsi oa litsebi oa mechini ea thermoforming.
Molao-motheo oa Mochini oa Vacuum: Ho etsa Vacuum ho boetse ho bitsoa thermoplastic forming, Ts'ebetso ena e kenyelletsa ho futhumatsa le ho nolofatsa lishiti tsa thermoplastic (mohlala, PVC, PET, PP) le ho sebelisa pompo ea vacuum ho li bopa holim'a hlobo, ho hlahisa lintho tse kang likoahelo tse entsoeng ka vacuum, li-blister trays, le clamshell pack.
Mochini o etsang vacuum o kenyelletsa likarolo tse 'maloa joalo ka sisteme ea clamping, sistimi ea ho futhumatsa, vacuum le sistimi e hatelitsoeng ea moea le hlobo.
Ha letlapa la polasetiki le bōptjoa, letlapa le behiloe holim'a sesebelisoa sa clamping. Ho thermoforming ea metjhini e akaretsang le e kopaneng ea thermoforming e sebelisoa ho thusa ho lokisoa ha boholo bo fapaneng ba sesebelisoa sa ho koala lakane. Maemong a mang, mochini oohle oa ho bopa o na le sete ea liforeimi tse koalang.
Sistimi ea clamping e lokela ho ntlafatsoa ka li-control tse ikemetseng ho fihlela ts'ebetso e potlakileng, ka hona e ntlafatsa boleng ba karolo le katleho ea tlhahiso.
Thermoplastic sheet le filimi ea vacuum forming process, e 'ngoe ea lits'ebetso tse ka sehloohong ke ho futhumatsa nako. Nako ea ho futhumatsa le katleho e itšetlehile ka lintlha tse kenyelletsang moralo oa heater, mahlaseli a holim'a mocheso oa mocheso, sebaka sa sheet-to-heater, coefficients absorption, le thepa ea thepa ea thermophysical. Licheso tse sebelisoang ka tloaelo ke lihitara tsa motlakase, li-emitters tsa kristale le lihitara tsa infrared.
Sistimi ea vacuum e na le lipompo tsa vacuum, litanka, li-valve, liphaephe le li-vacuum gauge, joalo-joalo, hangata li sebelisoa ka vacuum ho etsa mofuta o fapaneng oa pompo ea vacuum, vacuum ea lipompo tse joalo e lokela ho fihla ho 0.07 ~ 0.09 Mpa (520mmHg) kapa ho feta. Tanka ea polokelo ea khase hangata ke lebokose la cylindrical le cheselitsoeng ka lipoleiti tse tšesaane tsa tšepe 'me le na le botlaaseng ba oval. Bokhoni ba tanka ea polokelo ea khase e lokela ho ba bonyane halofo ea bokhoni ba kamore e kholo ea ho bopa. Liphaephe tsa vacuum li tlameha ho ba le li-valve tse loketseng ho laola bokhoni bo moqotetsane ba vacuum.
Matla a pompo ea vacuum (hangata 2-4 kW bakeng sa litsamaiso tse kholo/tse lebelo le holimo) a khethoa ke boholo ba lisebelisoa le litlhoko tsa tlhahiso. Liphaephe tsa vacuum li hloka li-valve tse nepahetseng tse laolang phallo. Boholo ba sistimi e bohareng ea vacuum bo itšetlehile ka litlhoko tse khethehileng tsa tlhahiso le nts'etsopele ea feme.
Sistimi ea moea e na le li-compressor, litanka tsa moea, li-valve le liphaephe. Mechini ea ho bopa hangata e hloka moea o hatelitsoeng oa 0.4-0.5 MPa, o fanoang ke li-compressor tsa piston tse kopaneng kapa li-screw compressor tsa semela. E ka boela ea sebelisa phepelo ea semela se seholo sa screw air compressor.
A petelitsoe moea ho phaella ho palo e kholo ea lokela ho sebelisoa ho theha, ho na le ha karolo ea hlobo bakeng sa lihlahisoa tsa pele ka ntle ho tsidifatso le mano foreime hlobo le matha lakane le likarolo tse ling tsa mochine tse kang matla a ketso.
Bakeng sa ho ntlafatsa katleho ea tlhahiso, lihlahisoa tse etsang vacuum hangata li hlokoa hore li pholisoe pele li etsoa. Ha e le hantle, likarolo tse ka hare le tse ka ntle tsa likarolo tse amanang le hlobo li pholile, 'me ho molemo ho sebelisa hlobo e nang le li-coil tse pholileng tsa ka hare. Bakeng sa hlobo e seng ea tšepe, joalo ka lehong, samente, polasetiki e matlafalitsoeng ka khalase, resin ea epoxy le hlobo e meng, hobane ho ke ke ha khoneha ho sebelisa pholileng ea metsi, e ka fetoloa hore e be moea o pholileng, 'me e ka ekeletsoa moholi oa metsi ho pholisa bokaholimo ba kantle ba likarolo tse etsang vacuum.
Pholiso ea tlhaho e hlahisa likarolo tse imollang khatello ea maikutlo ka matla a matla a ho hanyetsa. Le hoja ho pholisoa ha metsi ho eketsa tlhahiso, ho ka 'na ha baka khatello e phahameng ea ka hare.
Ho nyenyefatsa ho kenyelletsa ho ntša sehlahisoa ka har'a hlobo, e ka 'nang ea e-ba sekontiri kapa sekontiri. Maemong a mangata, ho qhibiliha ha mocheso ho etsa hore karolo e khomarele ka thata hlobo. Ka hona, ho theola moea ho finyelloa ka ho sebelisa khatello ea moea e ka morao ka likou tsa vacuum kapa likanale tsa moea tse hatelitsoeng.
Haholo-holo bakeng sa liforomo tse nang le letsoapo le lenyenyane la tokollo kapa ka hlobo ea concave, hlobo e boetse e lokolloa ka ho sebelisa mochine oa ho phunya kapa ho sisinyeha, ka linako tse ling ka ho sebelisa moemeli oa ho lokolloa holim'a lakane le hlobo, kapa ka ho fafatsa holim'a hlobo ka phekolo ea Teflon.
Sistimi ea taolo ka kakaretso e kenyelletsa ho etsa vacuum, ho qeta le lits'ebetso tse ling, ho kenyeletsoa lisebelisoa, limithara, liphaephe, li-valve le li-parameter tse laolang le mekhoa ea ho sebetsa. Mekhoa ea ho laola ke tsamaiso ea matsoho, electromechanical automatic control, computer control, joalo-joalo.
Moetsi oa litsebi oa mechini ea thermoforming.
