Nyanzvi mugadziri wemichina ye thermoforming.
Mutauro
Nyanzvi mugadziri wemichina ye thermoforming.
Nheyo yeVacuum Yekugadzira Machine: Vacuum kuumba inonziwo thermoplastic kuumba, Iyi nzira inosanganisira kupisa uye kupfavisa thermoplastic mashizha (semuenzaniso, PVC, PET, PP) uye kushandisa vacuum pombi kuvaumba pamusoro pekuumbwa, kugadzira zvinhu zvakaita sevhavha-yakaumbwa mavhavha, blister trays, uye clamshell.
Vacuum yekugadzira muchina unosanganisira akati wandei senge clamping system, yekudziya system, vacuum uye yakamanikidzwa mhepo system uye mold.
Kana pepa repurasitiki raumbwa, pepa racho rinogadziriswa pane clamping mudziyo. Mu thermoforming ye general-chinangwa uye composite thermoforming muchina anoshandiswa kufambisa kugadzirisa kweakasiyana hukuru hweshizha clamping mudziyo. Mune zvimwe zviitiko, muchina wese wekuumba wakashongedzerwa neseti ye clamping mafuremu.
Iyo clamping system inofanirwa kuvandudzwa neatomatiki kudzora kuti iwane nekukurumidza kushanda, nekudaro ichiwedzera chikamu chemhando uye kugona kugadzira.
Thermoplastic sheet uye firimu yevacuum forming process, imwe yenzira huru ndeye sheet heat.Kupisa nguva uye kushanda kunoenderana nezvinhu zvinosanganisira heater dhizaini, radiation pamusoro pethermal inertia, sheet-to-heater kure, absorption coefficients, uye zvinhu thermophysical properties. Inowanzo shandiswa heater magetsi emagetsi, crystal emitters uye infrared heaters.
Vacuum system ine vacuum pombi, matangi, mavharuvhu, pombi uye vacuum gauge, nezvimwewo, inowanzoshandiswa muvacuum ichigadzira yakaparadzana mhando yepombi yekutsvaira, iyo vacuum yemapombi akadaro inofanira kusvika 0.07 ~ 0.09 Mpa (520mmHg) kana kupfuura. Tangi rekuchengetera gasi rinowanzoita cylindrical bhokisi rakaiswa mahwendefa matete esimbi uye rine oval pasi. Kugona kwetangi rekuchengetedza gasi kunofanirwa kunge kuri hafu yekugona kwekamuri huru yekuumba. Vacuum pombi inofanira kunge yakashongedzerwa nemavharuvhu akakodzera kuti idzore hutete hwekugona kwevacuum.
Iyo vacuum pombi yemota simba (kazhinji 2-4 kW kune yakakura / yakakwirira-kumhanya masisitimu) inotarirwa nehukuru hwemidziyo uye zvinodiwa zvekugadzira. Vacuum mapaipi anoda chaiwo kuyerera kwekudzora mavharuvhu. Saizi yevacuum central system inotsamira pane chaiyo kugadzirwa uye kusimudzira zvinodiwa zvefekitori.
Iyo pneumatic system ine compressor, matangi emhepo, mavharuvhu, uye mapaipi. Michina yekuumba inowanzoda 0.4-0.5 MPa yakamanikidzwa mhepo, inopihwa ingave yakasanganiswa piston compressors kana yepakati chirimwa screw compressors. Inogona zvakare kushandisa hombe screw air compressor yakazara chirimwa chinopihwa.
Mhepo yakamanikidzwa kuwedzera kune yakawanda inofanira kushandiswa mukugadzira, pane apo chikamu chemuumbi wezvigadzirwa zvekutanga kunze kwekutonhodza uye kushandiswa kwechifukidzo chekugadzira uye pepa rinomhanya uye zvimwe zvikamu zvemuchina sesimba rekuita.
Kuti uvandudze kushanda zvakanaka kwekugadzira, vacuum yekugadzira zvigadzirwa zvinowanzodiwa kuti zvitonhodzwe zvisati zvadhiza. Zvakanakisa, mukati uye kunze kwekunze kwezvikamu zvinosangana ne mold zvakatonhodzwa, uye zviri nani kushandisa molds nemukati inotonhorera coils. Kune zviumbwa zvisiri zvesimbi, zvakadai sehuni, purasita, girazi fiber reinforced plastiki, epoxy resin uye mamwe maumbirwo, nokuti hazvibviri kushandisa mvura inotonhorera, inogona kuchinjwa kumhepo inotonhorera, uye inogona kuwedzerwa kune mhute yemvura kuti itonhodze kunze kwekunze kwevacuum inogadzira zvikamu.
Kutonhodza kwechisikigo kunoburitsa zvikamu zvinodzoreredza kushushikana zvine kukwidziridzwa kupikisa. Nepo kutonhora kwemvura kunowedzera kugadzirwa, kunogona kukonzera kushushikana kwakanyanya kwemukati.
Kudhiza kunosanganisira kubvisa chigadzirwa kubva muforoma, inogona kunge yakaita concave kana convex. Muzviitiko zvakawanda, kupisa kwemafuta kunokonzera kuti chikamu chinamatire zvakasimba kune mold. Demolding saka inowanikwa nekushandisa reverse air pressure kuburikidza ne vacuum ports kana compressed air channels.
Kunyanya kune zviumbwa zvine madiki ekuburitsa mutsetse kana ane concave molds, iyo mold inoburitswa nekushandisa yekuburitsa nzira yekubhuroka kana vibration, dzimwe nguva nekushandisa yekuburitsa agent pabepa uye mold, kana nekupfapfaidza pamusoro peiyo mold neTeflon kurapwa.
Kudzora sisitimu inowanzo sanganisira iyo vacuum kuumba, kupedzisa uye mamwe maitiro, anosanganisira zviridzwa, mita, mapaipi, mavharuvhu uye ekudzora ma parameter uye actuating michina. Kudzora nzira ndeye manual, electromechanical otomatiki kudzora, komputa kutonga, nezvimwe.
Nyanzvi mugadziri wemichina ye thermoforming.
