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Kusanthula ndi Kuthetsa Kutseka Mchira Wamakina a Injection Molding Machine Liang Kunliang

February 19, 2023

1 Mbiri yakale

Pakadali pano, kufunikira kwa zingwe za nayiloni pakati pa anthu kukupitilira kukula, ndipo mitunduyo imayambitsidwa nthawi zonse. Zomangira zingwe za nayiloni zimagwiritsidwa ntchito kwambiri pamagalimoto, zamagetsi, mafakitale opanga magetsi ndi mafakitale ena, amagwiritsidwa ntchito pomanga ndi kumanga kapena kumaliza mawaya, ndipo amatha kupewa waya pogwiritsa ntchito njira yokhotakhota chifukwa cha chithunzi chosawoneka bwino kapena ngakhale moto wozungulira dera lalifupi ndi ngozi zina zazikulu zachitetezo. [1] Zomangira za nayiloni ndi zida zowonda zapakhoma. [2] , kawirikawiri ndi PA pulasitiki nayiloni particles kuphatikiza odana ndi ukalamba UV zopangira kudzera jekeseni akamaumba makina kutentha nkhungu pulasitiki nthawi imodzi akamaumba [3] . Mapangidwe a makina omangira jekeseni wa nayiloni amafunikira kuti akhale ndi mphamvu yayikulu yolumikizira komanso kuthamanga kwambiri (mofulumira kuzungulira) Mawonekedwe.

Makina opangira jekeseni wa nayiloni 530t odziyimira pawokha opangidwa ndi Weiya Company ndi mtundu watsopano wopangidwa molingana ndi zofunikira ziwiri pamwambapa.. Pambuyo pomaliza kupanga makina oyesera, chitsanzocho chikuyesedwa mwa kukhazikitsa mayeso onyenga nkhungu. The clamping mphamvu ya chitsanzo akhoza kufika 620t, ndipo kutsegula ndi kutseka nkhungu sikuposa 3s. Kumayambiriro kwa mapangidwe, mbale zitatu (mbale yokhazikika, kusuntha mbale ndi mchira mbale) a clamping mechanism amafufuzidwa molingana ndi 660 t clamping mphamvu. Imagwiranso ntchito ngati cholandirira batire ndi mota komanso komwe kuli mabwana osiyanasiyana opangira ma screw omwe azigwiritsidwa ntchito kulumikizitsa chipangizocho pokhapokha mbali zamkati zitasonkhanitsidwa., ngakhale mphamvu ya clamping ifika 660 t, makina amatha kugwira ntchito bwino. Komabe, kuti mugwiritse ntchito chitetezo cha makinawo ndikupewa kudzaza makinawo, m'pofunika kukhazikitsa pulogalamu kompyuta kuti pazipita clamping mphamvu si kuposa 600 t.

2 Kafukufuku ndi kusanthula

Malinga ndi ndemanga za makasitomala ndi maulendo odziimira pa msika ndikudziyesa, zidapezeka kuti mbale za mchira wa ma tempulo anayi opangira jakisoni zidasweka, ndipo winayo anali ndi zizindikiro zosweka. Template ndi imodzi mwazinthu zofunika kwambiri zamakina opangira jakisoni, ndi gawo lalikulu la mtengo wa makina opangira jekeseni, template yasweka, makina opangira jekeseni sangathe kugwira ntchito bwino. [4] Kupyolera mu kusanthula kwa 4 zidutswa za mbale yosweka, ming'alu ya mbale yosweka imadutsa pakati pa bowo lonyamulira mchira, ndi kulowa kudzera kuponya njira dzenje la mbale mchira, monga momwe tawonetsera pa Chithunzi 1.

Choyambirira, kuchokera ku kusanthula kapangidwe kake, ngakhale dongosolo chapamwamba ndi m'munsi symmetrical ndondomeko mabowo kumbuyo lokhoma mchira mbale ndi osowa, chitsanzo ichi si mlandu woyamba. Komanso, zitsanzo zoyambirira zomwe zimagwiritsidwa ntchito popanga izi zapangidwa ndikugwiritsidwa ntchito, ndipo palibe kusweka kwa mbale ya mchira. Ubwino waukulu wa dongosololi ndikuti mkati mwazovomerezeka zopanikizika, imatha kuchepetsa kwambiri kulemera kwa castings, kuchepetsa mtengo wa castings, ndi kupititsa patsogolo mtengo wa makinawo. Kuphatikiza apo, chifukwa cha machitidwe a kuponya, chikwama cha hinge cha mbale ya mchira ndichokwera, zomwe sizili zoyenera kuponya molimba. Njira yachikhalidwe ndiyo kugwiritsa ntchito njira yobowola ndikulimbitsa nthiti pa hinge lug kutsogolo kwa mbale ya mchira.. Njira imeneyi yotulutsira mahing'ong'o kuseri kwa tail plate imapangitsa kuti kutsogolo kwa tail plate kuwonekere komanso kumvekera bwino.. Njira iyi yopangira dzenje imapangitsa kupsinjika kwakukulu kwa gawolo sikusiyana kwambiri ndi njira yachikhalidwe, ngakhale zochepa kuposa kupanikizika kwakukulu kwa njira yachikhalidwe.

Kachiwiri, malo okweza wononga wononga mbale ya clamping mchira wamtundu wa makinawa ndi malo oyezera nthawi zonse (Chithunzi 2). Bowo la screw limagwiritsidwa ntchito poyendetsa ndi kukweza, ndipo dzenje la screw siligwiritsidwanso ntchito makinawo atakonzedwa. Mitundu ina yakhala ikugwiritsidwa ntchito 5 kapena ngakhale 10 zaka, ndipo mbale ya mchira sinasweke, koma chitsanzo chatsopanochi chili ndi mavuto. Komanso, chitsanzo ichi lapangidwa ndi zokwanira chitetezo factor, ndiye, pazipita clamping mphamvu amaikidwa ndi kompyuta pulogalamu, kotero palibe kusowa mphamvu mu mbale ya mchira.

Pofuna kupeza gwero la vuto, zigawozo zidawunikidwa ndikufaniziridwa pogwiritsa ntchito mapulogalamu a 3D. Zimapezeka kuti malo a fracture ali pafupi ndi malo omwe amapanikizika kwambiri pakuwunika kwa gawo, koma sizikuphatikizana. Komanso, nthawi ya mchira mbale fracture kwenikweni anaikira mu nthawi ya 1.5 kuti 2 zaka ntchito. Malinga ndi kusanthula koyambirira, kuthyoka kwa mbale yotseka mchira kumakhala chifukwa cha kutopa, osati ndi mphamvu zosakwanira. Pamene makina akugwira ntchito, mbale yotsekera mchira nthawi zonse imakhala ndi kusinthasintha kosinthasintha komanso kupsinjika komwe kumabwera chifukwa chotsegula ndi kutseka.. Kupsyinjika kumeneku kumaperekedwa ku mbale ya mchira kudzera pa hinge. Makina omangira ma jakisoni a nayiloni ali ndi ntchito yothamanga kwambiri, kupangitsa kupsyinjika kwakukulu, ma frequency apamwamba.

Chachitatu, mu kusanthula kwamapulogalamu atatu-mbali, kupanikizika kwakukulu kwa mbale ya mchira kumayikidwa pamtunda wolumikizana pakati pa waya wa master ndi mbale ya mchira. Pofuna kupititsa patsogolo mphamvu ya mbale ya mchira, olowa mchira mbale reaming lug ndi kalozera nsanamira dzenje amangokhuthala. The makulidwe a zinthu mu gawo ili ndi 2 kuti 3 nthawi za mbali zina zapafupi (Chithunzi 3). Izi sizikugwirizana ndi njira yoponya, kotero kuti nthawi yozizira ya gawo lililonse la kuponyera ndi yosiyana kwambiri, kumabweretsa kupsinjika kwakukulu kwamkati pakuponya, n'zovuta kuchotsa ndi nthawi zotsatira mankhwala. Mwa njira iyi, ngakhale ngati boma silikugwira ntchito, padzakhala kupsyinjika kwakukulu kwamkati. Ndipo kuponyera mu nkhani iyi yaikulu m'goli makulidwe, mu ntchito, ndizovuta kufalitsa bwino mphamvu ku zigawo za zigawozo, padzakhala pang'ono mapindikidwe am'deralo, koma kupsyinjika kumakhala kokhazikika; Ngakhale kupanikizika si kwakukulu m'madera ena, deformation ndi yaikulu kwambiri. Mabowo anayi aukadaulo kuseri kwa mbale ya mchira ya 530t pulasitiki jakisoni woumba makina amakulitsa makulidwe osagwirizana., pansi pa zochitika ziwiri za kupsinjika kwa mkati ndi kusinthasintha maganizo, kutopa fracture ndikosavuta kuchitika.

Pomaliza, bowo lokwezera wononga la mbale ya mchira ndi chinthu chopanda pake pakuthyoka. Kuwunika koyerekeza kwamitundu yambiri yam'mbuyomu kunawonetsa kuti makina omangira jekeseni ya nayiloni ya 530T amakhala ndi bowo lokweza mchira pakati pa zingwe za mchira. (chith. 2). Mabowo okweza zokweza amitundu ina, ngakhale idapangidwanso m'derali, sizipezeka pakati pakati pa hinge lugs, ndipo ngakhale ali pafupi ndi likulu, malo ogwira ntchito ndi osiyana ndi makina opangira jekeseni wa chingwe. Ngati bowo lonyamulira mbale la mchira limangopezeka pakati pa ma lugs, ndi gawo lofunikira lamphamvu komanso malo okhala ndi mapindikidwe akulu, ndipo mbale ya mchira imakonda kuthyoka kutopa kuchokera pamalo obowola a screw hole. Bowo lonyamulira lili ngati notch mu mbale yamchira, ndipo kupsinjika kosinthasintha kumang'amba mbale ya mchira mosavuta. Ngati mfundo zovuta izi zikuwoneka mosiyana, sangakhale ndi chilema chachikulu monga kusweka. Komabe, pamene mawonekedwe apamwambawa ndi malo ogwirira ntchito amphamvu yothamanga kwambiri ndi zovuta zina zimachitika palimodzi., mbale ya mchira idzatopa ndikusweka pakapita nthawi yogwiritsira ntchito. Izi zikufotokozera chifukwa chake kompyuta sinayisanthula kumayambiriro kwa kapangidwe kake.

3 Mayankho Design

Choyamba, mwa kusintha mawonekedwe oponyera a mbale ya mchira, makina atsopano opangira jekeseni apangidwa. Njira yoyambirira yokumba dzenje laukadaulo kumbuyo kwa mbale ya mchira imasinthidwa kukhala njira yodziwika bwino yakukumba dzenje laukadaulo kutsogolo kwa reming.. Kotero kuti kumbuyo kwa mbale mchira chikugwirizana mu lonse, kupewa kutuluka kwa mipata yapafupi, pamodzi kunyamula mphamvu yofalitsidwa ndi makutu a hinjiri yakutsogolo.

Kachiwiri, ndi redesigned reaming lug kuponyera ndondomeko mabowo kumawonjezera mlingo wina wofuna (Chithunzi 4) kupewa mawonekedwe masinthidwe a ndondomeko mabowo kumbuyo ndi kutsogolo kwa mbale mchira. Nthawi yomweyo, zinthu zimatha kuchepetsedwa pang'onopang'ono kuchokera kumbuyo kwa mbale ya mchira kupita ku khutu lakutsogolo, kuti mupewe kusintha kwadzidzidzi komanso kusalinganika kwakukulu kwa makulidwe azinthu za gawo lililonse la kuponyera.

Apanso, chopachika tail plate hinge lug ndi guide pillar hole junction, pofuna kupititsa patsogolo mphamvu ya mphamvu, zakuthupi zimapangidwa kuti zikhale zokhuthala kwambiri, koma zimabweretsa kutsutsana. Kuti mufanane ndi makulidwe azinthu za gawo lililonse la kuponyera momwe mungathere, maenje ndondomeko anafukula pamwamba ndi pansi pa mbale mchira (Chithunzi 5), makulidwe azinthu pamalopo amaphwanyidwa, zida za gawo lililonse ndizokhazikika momwe zingathere, ndipo kupsinjika kwamkati kumachepetsedwa.

Pomaliza, kupititsa patsogolo mphamvu ya mbale ya mchira, zoumitsa zidawonjezedwa kutsogolo kwa mbale ya mchira kuti alumikizitse zitseko zobwereranso kumabowo a nsanamira zowongolera ndi mbale zam'mbali mbali zonse ziwiri. (chith. 6). Thupi lalikulu la mbale ya mchira limapanga mawonekedwe ofanana ndi a I-beam. Kapangidwe kameneka kamatha kufalitsa bwino mphamvu yogwira ntchito yotumizidwa ndi khutu la hinge ku mbali zosiyanasiyana za ziwalozo, kuchepetsa nkhawa ndende, pangani kupsinjika komweko kumachepetsa kwambiri, ndikuwongolera luso la anti-deformation. Kapangidwe kolimbikitsidwa kameneka kamaperekanso kumverera kokhuthala m'mawonekedwe, ndipo sikuli koyipa kuposa kuwongolera patsogolo.

Pambuyo pozindikira kusinthidwa kwa mapangidwe apangidwe, mapulogalamu atatu a dimensional amagwiritsidwa ntchito kusanthula ndi kuyerekezera kupsinjika kwa mbale zakale ndi zamchira zatsopano. Zinthu zamitundu iwiri ya tailstock ndi nodular kuponyedwa chitsulo QT500-7. Kupanikizika kovomerezeka kwa nkhaniyi ndi 320MPa. Mphamvu pa mbale ya mchira pakugwira ntchito imayikidwa 7200 kN. Pambuyo pofufuza ndi kuyerekezera, amapezeka kuti mbale yakale ya mchira sichithandiza kuti pakhale kupsinjika kwapang'onopang'ono komanso kukhazikika kwanuko, ndipo kupanikizika kwakukulu kumafika pafupi 278 MPa (Chithunzi 7). Mchira watsopano wa mchira ndiwothandiza kwambiri pakubalalitsa nkhawa, kuchepetsa kupsinjika kwakukulu mpaka pafupifupi 164 MPa pomwaza nkhawa (Chithunzi 8).

Malo a screw hole amasinthidwa kuchokera kuseri kwa tail plate kupita ku mbali ya tail plate kupewera komwe komwe komwe kumachokera ku screw hole kumakhala kofanana ndi komwe mphamvu yapa tail plate imachokera.. Mwa njira iyi, kwenikweni palibe malo ofooka pafupi ndi mphamvu ya mbale ya mchira. Makina atsopano opangira jekeseni ndi osavuta kugwira, koma imapangidwa pamalo a kasitomala.

Makina omwewo kuti athetse vutoli, chifukwa kasitomala sangathe kusiya kupanga, ngati mchira watsopano mbale pambuyo m'malo, ndipo ngati mbale zonse zakale za mchira zonse zasinthidwa ndi mchira watsopano, mtengo wake ndi wapamwamba. Pambuyo pofufuza mozama ndi kulingalira, yankho ndi choyamba kuchita angapo atsopano mchira mbale, m'malo mwaulere kwa makasitomala. Bwezerani mbale ya mchira, choyamba ndi makulidwe omwewo a chitsulo mbale welded kumbuyo kwa mchira mbale 4 ndondomeko mabowo, ndiyeno ndi ndodo yowotcherera yachitsulo chotayira kuti mutseke dzenje lonyamulira wononga.

Ngati chitsulo mbale ndi chabe welded kwa mbale mchira, zida ziwirizi ndizovuta kuphatikizira pamodzi. Komanso, kutentha kwa m'deralo panthawi yowotcherera kudzayambitsa kupsyinjika kwatsopano kwa mkati pa mbale ya mchira. Pambuyo pokambirana ndi katswiri, maziko mwa njira yapadera, choyamba kuika mbale mchira mu akamaumba mchenga kwa nthawi inayake, ndipo mulole izo zitenthedwe zonse. Pamene mchira mbale kufika kutentha, ndiye kutentha kwa m'deralo kumachitika chifukwa cha kuwotcherera. Kenako mbale yachitsulo imawotcherera ndipo mabowo amakulungidwa ndi electrode kuti zidazo zisakanizike bwino.. Kenako mbale ya mchira imakumbidwa ndikuyikidwa mumchenga wophikidwa kumene. Kuchepetsa kutentha kwa chipinda, ndiyeno mbale ya mchira kulowa panja, 20 kuti 30 masiku zotsatira zotsatira mankhwala. Mwanjira iyi zotsatira zabwino zingatheke. Yang'anani ndi mbale zobwerera mchira izi, kenako kutumizidwa kwa kasitomala. Mwa njira iyi, makasitomala amatha kuthetsa vutoli pamtengo wotsika popanda kuyimitsa kupanga ndikupeza mwayi wopambana.

4 Kuyesera kusungunula pulasitiki ya thermoset kachiwiri kumapangitsa kuti zinthuzo ziwotche

Kupyolera mu nkhani ya nkhaniyi, m'pofunika kuganizira mokwanira kuuma ndi mphamvu ya template, komanso kuganizira chilengedwe cha zipangizo. M'pofunikanso kufotokoza mwachidule zomwe zinachitikira mu nthawi. Kupanga kwamakina ndi gawo lalikulu komanso lakuya laukadaulo wamaukadaulo, kokha chiphunzitso ndi kuchita kwathunthu pamodzi, umodzi wa chidziwitso ndi machitidwe, kuti apitirize kupita patsogolo pa ntchito yeniyeniyo.

Ngati muli ndi mafunso pa makina opangira jekeseni ,plz khalani omasuka kufunsa Gulu la FLYSE (whatsapp:+86 18958305290),tidzakupatsani utumiki wabwino kwambiri!

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