Katswiri wopanga makina opangira kutentha.
Chilankhulo
Katswiri wopanga makina opangira kutentha.
Mfundo ya Vacuum Forming Machine: Kupanga vacuum kumatchedwanso thermoplastic forming, Njirayi imaphatikizapo kutentha ndi kufewetsa mapepala a thermoplastic (mwachitsanzo, PVC, PET, PP) ndikugwiritsa ntchito pampu ya vacuum kuti awawumbe pamwamba pa nkhungu, kupanga zinthu monga zovundikira zopangidwa ndi vacuum, trays matuza, ndi clamshell.
Makina opangira vacuum amaphatikiza magawo angapo monga clamping system, makina otenthetsera, vacuum ndi makina oponderezedwa ndi nkhungu.
Pepala lapulasitiki likapangidwa, pepalalo limakhazikika pa chipangizo cholumikizira. Mu thermoforming wa ambiri cholinga ndi gulu thermoforming makina ntchito kuti atsogolere akukonzekera zosiyanasiyana makulidwe a pepala clamping chipangizo. Nthawi zina, makina onse omangira amakhala ndi mafelemu a clamping.
Dongosolo la clamping liyenera kukongoletsedwa ndi zowongolera zokha kuti zitheke kugwira ntchito mwachangu, potero kumapangitsa kuti gawo labwino komanso kupanga bwino.
Thermoplastic pepala ndi filimu ya vacuum kupanga ndondomeko, imodzi mwa njira zazikulu ndi sheet heat.Kutentha kwa nthawi ndi mphamvu zimadalira zinthu monga chotenthetsera kapangidwe, ma radiation pamwamba matenthedwe inertia, pepala-to-heater mtunda, coefficients mayamwidwe zinthu, ndi zinthu thermophysical katundu. Ma heaters omwe amagwiritsidwa ntchito kwambiri ndi ma heater amagetsi, ma crystal emitters ndi ma infrared heaters.
Vacuum system imakhala ndi mapampu a vacuum, akasinja, mavavu, mapaipi ndi vacuum gauge, ndi zina zambiri, zomwe zimagwiritsidwa ntchito ngati vacuum kupanga mtundu wosiyana wapampu yopuma, mpweya wa mapampu oterowo uyenera kufika 0.07 ~ 0.09 Mpa (520mmHg) kapena kupitilira apo. Tanki yosungiramo gasi nthawi zambiri imakhala bokosi la cylindrical wowotcherera ndi mbale zopyapyala zachitsulo ndipo pansi pake imakhala yozungulira. Mphamvu ya thanki yosungiramo gasi iyenera kukhala osachepera theka la mphamvu ya chipinda chachikulu chomangira. Vacuum paipi iyenera kukhala ndi mavavu oyenera kuti azitha kuwongolera kuchuluka kwa vacuum.
Mphamvu yamagetsi yapampu ya vacuum (nthawi zambiri 2-4 kW pamakina akulu / othamanga kwambiri) imatsimikiziridwa ndi kukula kwa zida ndi zofuna zopanga. Mapaipi a vacuum amafunikira ma valve owongolera oyenda bwino. Kukula kwa vacuum chapakati dongosolo zimadalira makamaka kupanga ndi chitukuko zofunika fakitale.
Dongosolo la pneumatic limapangidwa ndi ma compressor, akasinja a mpweya, ma valve, ndi mapaipi. Makina omangira nthawi zambiri amafunikira mpweya woponderezedwa wa 0.4-0.5 MPa, woperekedwa ndi ma compressor ophatikizika a piston kapena ma compressor apakati opangira mbewu. Itha kugwiritsanso ntchito zomangira zazikulu zomangira kompresa mbewu zonse.
Wothinikizidwa mpweya kuwonjezera chiwerengero chachikulu cha ayenera kugwiritsidwa ntchito kupanga, pali pamene mbali ya nkhungu woyamba mankhwala kunja kuzirala ndi mpheto ya nkhungu chimango ndi kuthamanga pepala ndi mbali zina makina monga mphamvu zochita.
Pofuna kupititsa patsogolo luso la kupanga, zinthu zopangira vacuum nthawi zambiri zimafunikira kuziziritsidwa musanazigwetse. Momwemo, mawonekedwe amkati ndi akunja a magawo omwe akukhudzana ndi nkhungu amakhala atakhazikika, ndipo ndibwino kugwiritsa ntchito nkhungu zokhala ndi zoziziritsa zamkati. Kwa nkhungu zopanda zitsulo, monga matabwa, pulasitala, mapulasitiki opangidwa ndi galasi, epoxy resin ndi zina, chifukwa sizingatheke kugwiritsa ntchito madzi ozizira, akhoza kusinthidwa kukhala kuziziritsa kwa mpweya, ndipo akhoza kuwonjezeredwa ku nkhungu yamadzi kuti azizizira kunja kwa mbali zopangira vacuum.
Kuziziritsa kwachilengedwe kumatulutsa mbali zochepetsera kupsinjika zomwe zimakhala ndi mphamvu yolimbikitsira. Ngakhale kuzizira kwamadzi kumawonjezera zokolola, kungayambitse kupsinjika kwakukulu kwamkati.
Kuwononga kumaphatikizapo kuchotsa chinthucho mu nkhungu, yomwe ingakhale yopingasa kapena yopingasa. Nthawi zambiri, kutentha kwapakati kumapangitsa gawolo kumamatira mwamphamvu ku nkhungu. Chifukwa chake, kugwetsa kumatheka pogwiritsa ntchito mpweya wobwerera kumbuyo kudzera m'madoko a vacuum kapena njira zoponderezedwa.
Makamaka nkhungu ndi otsetsereka ang'onoang'ono kumasulidwa kapena ndi zisamere pachakudya, nkhungu imatulutsidwanso pogwiritsa ntchito njira yotulutsira kugwedezeka kapena kugwedezeka, nthawi zina pogwiritsa ntchito kumasulidwa kwa pepala ndi nkhungu, kapena kupopera mankhwala pamwamba pa nkhungu ndi mankhwala a Teflon.
Dongosolo lowongolera nthawi zambiri limaphatikizapo kupanga vacuum, kumaliza ndi njira zina, kuphatikiza zida, mita, mapaipi, mavavu ndi magawo owongolera ndi njira zoyendetsera. Njira zowongolera ndizomwe zimagwiritsidwa ntchito pamanja, electromechanical automatic control, computer control, etc.
Katswiri wopanga makina opangira kutentha.
