EVA Sheet Machine Line

EVA (ethylene vinilu acetate copolymer) pepala ndi wamba kwambiri pulasitiki mankhwala, chimagwiritsidwa ntchito m'madera osiyanasiyana monga zipangizo nsapato, katundu, zipangizo masewera, zidole, pakompyuta mankhwala cushioning ma CD, mphasa pansi, otentha Sungunulani zomatira mafilimu, etc. chifukwa cha kufewa kwake kwambiri, elasticity, transparency, kukhazikika kwa mankhwala, ndi ntchito yabwino processing.

Njira yayikulu yopangira mapepala a EVA ndi kuumba kwa extrusion, ndipo zida zofananira ndi EVA pepala extrusion kupanga mzere. Mzere wopangirawu uli ndi zofanana ndi mzere wa pepala wa PP / PE womwe tatchulidwa kale, koma chifukwa cha makhalidwe a zinthu za EVA (makamaka kufewa, kusungunuka bwino, komanso kuthekera kwa thovu), zipangizozi zimakhalanso ndi mawonekedwe ake apadera.

Mzere wathunthu wa makina a EVA sheet makamaka amakhala ndi magawo awa:

1. Yaiwisi processing dongosolo

Ntchito: Zipangizo za EVA nthawi zambiri zimakhala za granular. Ngati mukupanga thovu la EVA mapepala, m'pofunika kuwonjezera thovu zinthu (monga AC thovu wothandizila) ndi zina zowonjezera (crosslinking wothandizira, lubricant, etc.).

·Zida:

Makina odyetsera okha: Kunyamula tinthu ta EVA kuchokera ku silo kupita ku extruder hopper.

• Dongosolo loyezera chakudya: Ichi ndi chida chofunikira popangira mapepala a thovu. Kawirikawiri, kuwonda kuyeza sikelo ntchito molondola ndi mosalekeza kusakaniza EVA particles, thobvu wothandizira masterbatch, colorants, etc. mu gawo ndi kudyetsa iwo mu extruder kuonetsetsa mtheradi bata la chiŵerengero cha chilinganizo, chimene ndi chofunika kupeza yunifolomu thobvu khalidwe.

2. Extruder

Ntchito: Sungunulani, sungani pulasitiki, ndi kusakaniza mofanana zinthu za EVA. Kwa mapepala a thovu, m'pofunikanso kugawanitsa mofanana ndi thovu mu sungunuka.

·Mtundu:

· Single screw extruder: yoyenera kupanga mapepala wamba osatulutsa thovu kapena otsika thovu a EVA, okhala ndi mawonekedwe osavuta komanso otsika mtengo.

·Parallel and co rotating twin-screw extruder: kusankha kofala komanso kothandiza. Kusanganikirana kwake ndikwabwino kwambiri, komwe kumatha kumwaza bwino zinthu zotulutsa thovu ndi inki, kuonetsetsa kuti kutentha kwa yunifolomu kumasungunuka, ndikupanga mawonekedwe okhazikika a pepala. Oyenera makamaka kudzaza kwambiri komanso kupanga thovu za EVA.

3. Kusintha kwa maukonde

·Ntchito: Sefa zonyansa ndi tinthu tating'ono tating'ono tosungunuka, tetezani kutsekeka kwa nkhungu, ndikuwonetsetsa kuti zinthu zili zoyera komanso zapamwamba. Nthawi zambiri, ndi hydraulic automatic screen chonger yomwe imatha kusintha zosefera popanda kuyimitsa makina, kuwonetsetsa kuti ikupanga mosalekeza.

4. Nkhungu

·Ntchito: Pangani pulasitiki yosungunula yotuluka kukhala m'lifupi ndi makulidwe omwe mukufuna.

·Mtundu: Makamaka pogwiritsa ntchito hanger yamtundu wa flat die mutu, kapangidwe kake kanjira kangathe kuwonetsetsa kuti zinthu zosungunuka zimagawidwa mofanana m'lifupi mwake, potero zimapeza mapepala okhala ndi makulidwe osasinthasintha.

·Zowoneka: Milomo ya nkhungu nthawi zambiri imabwera ndi chida chabwino-chokonza chomwe chimatha kusintha bwino kusiyana kwa malo osiyanasiyana kuti chiwongolero cha pepala chizitha kulimba.

5. Atatu mpukutu kalendala

·Ntchito: Ichi ndiye chida chopangira ma sheet a EVA.

·Kuziziritsa ndi kuumba: Billet yotentha kwambiri-yotuluka mu nkhungu imalowetsedwa mwamsanga mumpata wapakati pa zogudubuza zitatu, zoziziritsidwa mofulumira ndi madzi ozizira mkati mwa zodzigudubuza, ndi kulimba ndi kuumbika.

·Zindikirani makulidwe ndi zotsatira za pamwamba: Makulidwe omaliza ndi kunyezimira kwapamwamba (gloss kapena matte) kwa pepala kumatsimikiziridwa ndi kusiyana pakati pa odzigudubuza atatu ndi kusalala kwa pamwamba pa zodzigudubuza.

·Zinthu: The odzigudubuza atatu akhoza palokha kusintha liwiro ndi kutentha kukwaniritsa zofunika zosiyanasiyana ndondomeko.

6. Chigawo chokoka

·Ntchito: Londolerani pepala loziziritsidwa ndi lowoneka bwino polowera pachida chomangirira.

·Mapangidwe: Nthawi zambiri amapangidwa ndi peyala imodzi kapena zingapo za rabara kapena silikoni zodzigudubuza, zomwe zimapereka kukopa kofanana komanso kupewa kupotokola kotambasula.

7. Zida zodziwira pa intaneti (zosankha koma zofunika)

· Beta ray kapena infrared makulidwe gauge: Kusanthula kwanthawi yeniyeni ndikuwonetsa makulidwe opindika a pepala mugawo lokokera, ndipo amatha kuyankha zomwe zasinthidwa kunjira yosinthira milomo ya nkhungu kuti ikwaniritse zowongolera (ATC), kuwongolera kwambiri kusasinthika.

8. Winder

·Ntchito: Pindani pepalalo kukhala mpukutu. Chifukwa cha kufewa kwa mapepala a EVA, kuwongolera kugwedezeka kwapang'onopang'ono ndikofunikira.

·Mtundu:

· Makina omangira chapakati: okhotakhota poyendetsa pachimake kuti azungulire, oyenera kusiyanasiyana.

·Makina okhotakhota pamwamba: Amayendetsa kunja kwa koyiloyo kuti azungulire kugundana, komwe kumakhala koyenera kuzinthu zofewa komanso zopunduka mosavuta ndipo kumatha kusunga bwino mawonekedwe a koyiloyo. Ndi njira yomwe imagwiritsidwa ntchito nthawi zambiri pamapepala a EVA.

·Zida zapamwamba-zokhala ndi dual station rotary rewinder, yomwe imatha kusintha ma reel popanda kuyimitsa makinawo, ndikumapanga mosalekeza.

9. Njira yoyendetsera magetsi

·Ntchito: 'Ubongo' wa mzere wopanga. Kutengera kuwongolera kwa PLC ndi chophimba cholumikizira chophatikizika, magawo onse amachitidwe monga kutentha, kuthamanga kwa wononga, liwiro la roller, kugwedezeka ndi kugwedezeka kwa gawo lililonse kumatha kukhazikitsidwa ndikuwongolera.

EVA particles+foam masterbatch+colorant ->weight loss metering feeding system ->twin-screw extruder (melting, mixing, foaming agent decomposition) ->screen changer (filtering impurities) ->hanger mold (forming) ->three roll calender (cooling, shaping, calendering) ->traction machine ->thickness gauge (online detection) ->winding machine (rolling) ->EVA pepala yomalizidwa mankhwala

Chida chotulutsa thovu cha EVA pepala zida Wamba EVA pepala zida

Dongosolo lopangira zida liyenera kukhala ndi masikelo oyezera bwino kwambiri-powonjezera kuwonda powonjezera thovu. Makina odyetsera nthawi zonse amatha kukwaniritsa zofunikira.

Extruder ili ndi zofunikira kwambiri pakusakaniza ndi kufalitsa wononga, ndipo mapasa-zikuluzikulu amapasa amakonda. Single screw kapena twin screw angagwiritsidwe ntchito.

Kuwongolera ndondomeko kumafuna kulondola kwambiri. Kuwongolera kutentha kumakhudza mwachindunji chiŵerengero cha thovu ndi kapangidwe ka selo. Zosavuta.

Kapangidwe ka nkhungu ndi kofanana, koma kapangidwe kake kamayenera kuganizira za kusungunula komwe kumakhala ndi thovu. Standard hanger kalembedwe nkhungu mutu.

Zida zotsatila, kalendala itatu, ndizofunikira kuti ziwongolere makulidwe ndi pamwamba pa pepala la thovu. Kalendala yamitundu itatu ikufunikanso.

1. Maonekedwe azinthu: Fotokozani ngati kupanga kwakukulu ndi mapepala a thovu kapena opanda thovu? Kodi chiŵerengero cha thovu ndi chiyani? Izi mwachindunji amasankha kusankha extruders ndi kudyetsa kachitidwe.

2. Mankhwala specifications: Zolemba malire kupanga m'lifupi (monga 1000mm, 1300mm, 1500mm, etc.) ndi makulidwe osiyanasiyana (nthawi zambiri 0.5mm-10mm).

3. Mulingo wodzichitira zokha: Kodi mumafunikira kudyetsa metering, kusintha kwa skrini, mayankho oyezera makulidwe (ATC), ndi mapindikidwe odziwikiratu? Izi zitha kusintha kwambiri khalidwe la mankhwala ndi kukhazikika, komanso kuonjezera ndalama.

4. Zofuna kupanga: Dziwani kukula kwa chitsanzo cha extruder (screw diameter).

5. Kusankha kwa ogulitsa: Kukonzekera kwa EVA kumafuna chidziwitso chapamwamba. Opereka zida omwe ali ndiukadaulo wokhwima, wokhoza kupereka chiwongolero cha fomula, kukhazikitsa ndi kutumiza, ndi maphunziro a kachitidwe ayenera kusankhidwa.

Mwachidule: Zida zamapepala a EVA ndi mzere wopanga mwaukadaulo wokhwima, koma masinthidwe ake amatha kusiyanasiyana kutengera kupanga zinthu za thovu kapena zopanda thovu. Choyambira chagona pamayendedwe olondola azinthu zopangira, kusakaniza kosungunuka bwino, kuzizirira koyenera, ndi mafunde okhazikika. Musanagwiritse ntchito ndalama, ndikofunikira kuti mufotokozere zomwe mukufuna kugulitsa ndi ogulitsa zida.

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