Momwe mungafupitsire jakisoni wowumba wa jakisoni ku Makina a jakisoni aku China?

Momwe mungafupitsire jakisoni wowumba wa jakisoni ku Makina a jakisoni aku China?

M'gulu lamalonda lomwe likukulirakulirabe, Kuwongolera kachulukidwe kazinthu ndi nkhani yofunika kuiganizira. Nkhaniyi ikufotokoza njira zosiyanasiyana zowonjezerera jekeseni pogwiritsa ntchito zomwe zilipo kale kapena zatsopano makina opangira jakisoni wa China kapena nkhungu

Jekeseni kuzungulira

The jakisoni kuzungulira makina opangira jekeseni a hydraulically amatanthawuza kuyamba kwa nkhungu kumangirira ku nkhungu yotsatira.. Kuthirira nkhungu nthawi zambiri kumagawidwa m'magawo anayi: kudya nkhungu clamping, kuchepetsa nkhungu clamping, otsika kuthamanga nkhungu chitetezo ndi mkulu kuthamanga nkhungu clamping.

Jekeseniyo imayamba pambuyo pomaliza kukakamiza kwambiri, ndipo imagawidwanso m'magawo angapo. Pulasitiki yosungunuka imadzaza m'bowo panthawi yobaya. Pamene patsekeke wadzazidwa, kupsyinjika kumakwera kwambiri, kotero mapeto a jekeseni amatchedwanso gawo lonyamula.

Pamene kulamulira sikuli koyenera, mankhwala omalizidwa adzakhala ndi burrs.Kukakamiza kugwira kumayamba jekeseni ikatha. Pamenepo, kuzizirira kumayamba pambuyo podzaza patsekeke, ndiye, imayamba kuchokera kukakamiza kugwira. Pamene nkhungu ikazizira, mankhwala omalizidwa amachepa pansi pa kuzizira.

Ntchito yogwira kukakamiza ndikudutsa wothamanga wozizira yemwe sanakhazikikebe, ndikudzaza zopuma zomwe zimapangidwa ndi shrinkage pamphamvu yogwira yomwe imakhala yotsika kuposa kuthamanga kwa jekeseni, kotero kuti mankhwala omalizidwa adzaza (opanda mano) ikagwetsedwa.

Pamene wothamanga ozizira ali olimba, sikuli tanthauzo kukakamizanso, ndipo kupanikizika kungathe kuthetsedwa. Kupanikizika kogwira kumatha kugawidwa m'magawo angapo, ndipo kukakamizidwa kwa gawo lililonse kumakhala kosiyana (kawirikawiri kuchepa sitepe ndi sitepe), zomwe zimagawidwa ndi nthawi. Nthawi yonse yogwira imatsimikiziridwa ndi kulemera kwa chinthu chomalizidwa kapena kusakhalapo kwa mano pa chinthu chomalizidwa. Sinthani kuchokera pakanthawi kochepa, ndi kuwonjezera nthawi yogwira jekeseni iliyonse, mpaka kulemera kwa mankhwala omalizidwa sikukuwonjezekanso kapena madontho akuvomerezedwa, nthawi yogwira sikuyenera kuwonjezeredwa.

The “nthawi yozizira” parameter yomwe imayikidwa pa makina opangira jekeseni wa China ndi nthawi yanthawi kuchokera kumapeto kwa kukakamiza mpaka kutsegula kwa nkhungu., koma kuziziritsa kumayamba pomwe nkhungu imadzaza ndi pulasitiki. Cholinga cha “nthawi yozizira” ndikupangitsa kuti chinthu chomalizidwacho chipitirire kuziziritsa ndi kulimba kuti zisawonongeke ndi jekeseni akabayidwa.. Ziyenera kunenedwa kuti “nthawi yozizira” amachokera ku kuyesa.

Clamping

Makina opangira jekeseni amtundu wa China omwe angopangidwa kumene apanganso makina omangira mafuta kuti athe kuyesetsa kuthamanga kwambiri.. Ndikoyenera kugwiritsidwa ntchito poganizira kuti nkhunguyo siimakhudzidwa kwambiri. ,

High kuthamanga nkhungu clamping

Kugwiritsa ntchito mphamvu yochepetsetsa kwambiri yomwe ingalepheretse chinthu chomalizidwa kupanga ma burrs kumatha kufupikitsa nthawi yofunikira pagawo lolimba kwambiri.. Komanso, ndodo zomangira, toggles, ndi ma templates a nkhungu, China china jekeseni makina akamaumba, ndipo ma templates adzatalikitsanso moyo wawo chifukwa chogwiritsa ntchito mphamvu yochepetsera.

Ngati nkhungu yokhala ndi clamping force ya 50t ndiyokwanira, palibe chifukwa chogwiritsa ntchito clamping force ya 51t, ngakhale makina anu opangira jakisoni aku China ali ndi mphamvu yopumira kwambiri.

jekeseni

Kuthamanga kwambiri kwa jakisoni kumatha kugwiritsidwa ntchito ngati chomaliza sichitulutsa thovu kapena mawanga akuda chifukwa cha pulasitiki yoyaka.. Makamaka akamaumba jekeseni wa mipanda yokhuthala, kuchuluka kwa malo osungiramo mpweya mu nkhungu kumadzaza ndi pulasitiki yosungunuka. Kuthamanga kwambiri kwa jakisoni kumalepheretsa mpweya wapabowo kuti usatuluke mu nkhungu, kuchititsa thovu.

Kugwiritsa ntchito jekeseni yotsika kwambiri kungathenso kuchepetsa mphamvu ya clamping yofunikira (mphamvu yowonjezera), pamene ntchito otsika mbiya kutentha akhoza kufupikitsa “nthawi yozizira”.

Gwirani kukakamiza

Nthawi yaifupi kwambiri yogwira imatha kuzindikirika kuchokera kulemera kwa chinthu chomalizidwa kapena chiboliboli chovomerezeka. Pali zinthu zambiri zokhala ndi mipanda yopyapyala zomwe sizifunikira kukakamiza, chifukwa chosanjikiza chamkati cha mankhwala omalizidwa chimakhazikika nthawi yomweyo jekeseni ikamalizidwa.

Nthawi yozizira

Pali mawu akuti: Chikombolecho kwenikweni ndi chosinthanitsa kutentha. Inde, nkhungu mosalekeza imachotsa kutentha kwa kusungunuka kudzera mumtsinje wamadzi ozizira, ndi nkhungu yopangidwa bwino imatha kupititsa patsogolo kusinthanitsa kutentha. Komabe, ngati aloledwa, Kuzizira kwa madzi oundana kumatha kufupikitsa “nthawi yozizira”. Ngati madzi ayezi utakhazikika kuti nkhungu condensation, chowuzira mpweya wowuma ndi chotchinga chotchinga nkhungu zimatha kuchepetsa kuchuluka kwa mame ndikuletsa kukhazikika..

Ngati plasticizing mphamvu sikokwanira ndipo amakhala botolo, mankhwala otsatirawa angathe kuchitika pa wononga kamangidwe ndi chizindikiro kusintha:

1. Zotchinga zowononga zimatha kuwonjezera mphamvu ya plasticizing.
2. Kukula kwakukulu (C) screw ikhoza kuonjezera mphamvu ya plasticizing.
3. Kuchulukitsa kuzama kwa zomangira kungathe kuwonjezera mphamvu ya plasticizing.
4. Kuwonjezeka kwa liwiro la screw kungawonjezere mphamvu ya plasticizing (mapulasitiki ena omwe amamva kumeta ubweya, monga pvc, PET, etc., sangagwiritse ntchito njirayi).
5. Chepetsani kukakamiza kumbuyo momwe mungathere, mwinamwake izo zidzawonjezera liwiro la plasticizing.
6. The hydraulic sealing nozzle imatengedwa, kotero kuti jekeseni nkhungu ikhoza kukhala pulasitiki potsegula ndi kutseka nkhungu ya jekeseni.
7. Kugwiritsa ntchito mapangidwe a pre-plasticizer kumathandizira kuti wonongazo zikhale zapulasitiki panthawi yozungulira kupatula jekeseni ndi nthawi yogwira..
8. Adopt-pressure-holding device, kotero kuti screw ikhoza kupangidwa ndi pulasitiki mu gawo logwira ntchito.

Gwiritsani ntchito liwiro lapamwamba kwambiri kuti mutsegule nkhungu ya jakisoni osang'amba zomwe zamalizidwa ndikupanga phokoso lalikulu lotsegulira jekeseni.. Makina ena apamwamba kwambiri opangira jakisoni aku China ali ndi zida za decompression asanatsegule nkhungu, ndipo ngakhale kutsegula nkhungu yothamanga kwambiri sikudzatulutsa phokoso. Kuti mukwaniritse malo oyimira jekeseni ya nkhungu pansi pa kutsegulidwa kwa nkhungu yothamanga kwambiri, valavu ya brake kapena control-loop control ingagwiritsidwe ntchito.

Pa makina ang'onoang'ono a jakisoni aku China opangira jakisoni okhala ndi mphamvu yochepa yotulutsa, Pneumatic ejection angagwiritsidwe ntchito, womwe ndi wapamwamba kuposa liwiro la hydraulic ejection. Kutulutsa kwamagetsi kumathamanga kwambiri kuposa kutulutsa mpweya.

jekeseni jekeseni akhoza kupangidwa kuti atulutsidwe ndi jekeseni nkhungu kutsegula kanthu m'malo mwa ejection chipangizo pa jekeseni china china jekeseni akamaumba makina.. Njira iyi ikhoza kutulutsidwa kamodzi kokha. Iyi ndi njira yosavuta yotulutsira pamene mukutsegula nkhungu ya jekeseni.

Kugwiritsa ntchito mafuta ozungulira ozungulira, kayendedwe ka gasi kapena kuwongolera dera, imatha kuzindikira ntchito ya ejection angapo potsegula nkhungu ya jekeseni potulutsa. Kuti

Zokhala ndi zida zamakanema ndi makompyuta, imatha kusanthula mwachangu ngati zinthu zomalizidwa zonse zidatsitsidwa pambuyo pa ejection imodzi. Ejection yachiwiri imachitika pamene si onse omwe amagwetsedwa, choncho 99% Zomwe zili m'chitsanzo pamwambapa zimachotsedwa kamodzi kokha, zomwe zimapulumutsa pafupifupi nthawi yozungulira.

Kubwerera

Zina zomalizidwa zimatha kutulutsidwa ndi kugwedezeka kwa makina omangira jakisoni wa China kuti atulutse kangapo. The thimble sayenera kubwezeredwa kwathunthu nthawi iliyonse kuti kufupikitsa nthawi ya ejection angapo.

The ejection otsiriza akhoza kuyamba nthawi yomweyo monga jekeseni nkhungu clamping. Popeza kugunda kwa thimble ndi kwakufupi kuposa kwa template, thimble nthawi zonse imachotsedwa kwathunthu jekeseni nkhungu isanatsekeke.

Nthawi yayifupi kwambiri yozungulira

Nthawi yayifupi kwambiri yozungulira imakhala ndi nthawi yofunikira kuti jekeseni nkhungu itseke, jekeseni, kukakamiza kugwira, kuziziritsa ndi jekeseni nkhungu kutsegula. Kudyetsa ikuchitika pa nthawi ya “nthawi yozizira” and injection mold opening and closing, and even while maintaining pressure. Multiple ejections are performed at the same time when the injection mold is opened, and the last ejection is performed at the same time when the injection mold is closed. Pamenepa, up to three actions can be performed at the same time, and each action has an independent drive. It may be that all three are oil circuits (such as three oil pumps), and all three are circuits (electric china china injection molding machine) or a combination of oil circuits, air circuits and circuits.

Electric china china injection molding machines generally have 4 servo motors to drive injection molding, feeding, opening, closing and demolding respectively. The advantage is that the parallel operation can shorten the cycle. Pamenepo, makina opangira ma hydraulic china china jekeseni amathanso kukwaniritsa cholingachi mukamagwiritsa ntchito 3 zitsulo zopanda mafuta. Chifukwa chake, ubwino uwu si patent kwa magetsi china china jekeseni akamaumba makina.

Popeza jekeseni silingapangidwe pamene nkhungu imatsegulidwa, ma servo motors anayi sangathe kugwira ntchito nthawi imodzi. Kusanthula mu Chithunzi 10 zikuwonetsa kuti zochitika zitatu zofananira zafika nthawi yayifupi kwambiri.

Nthawi yowuma

Makina ambiri opangira jakisoni aku China akuwonetsa nthawi yowuma, koma nthawi zambiri imangowerengedwa nthawi yongoyerekeza, kunyalanyaza mathamangitsidwe ndi kuchepa kwa template, ndipo ndithudi khalidwe la nkhungu yosuntha silinawerengedwe, chomwe ndi chachifupi kuposa nthawi yeniyeni yotsegula ndi kutseka nkhungu. . Malinga ndi muyezo wa Euromap, nthawi yosagwira ntchito ndi nthawi yofunikira kuti template itseguke ndi kutseka, ndi kutsegula ndi kutseka sitiroko imayikidwa pa 0.7 nthawi zambiri danga la magawo anayi. Pafupipafupi kuzungulira, kokha nkhungu kutsegula ndi kutseka nthawi (nthawi yopanda ntchito) ndi nthawi ya jakisoni zimagwirizana ndi kapangidwe ka makina opangira jakisoni aku China.

Jekeseni wochepa wa khoma

Thin-wall jakisoni akamatanthauzidwa ngati jekeseni akamaumba ndi makulidwe khoma la 0.5 mm kapena zochepa, kapena njira / khoma makulidwe chiŵerengero cha 300 kapena kuposa. Pofuna kupewa pulasitiki yosungunuka kuti isalimbane musanadzaze patsekeke, thin-wall jekeseni akamaumba ndi mkulu-liwiro (ndi kuthamanga kwakukulu / kuchepa) jekeseni akamaumba. Zomwe zimatchedwa jekeseni wothamanga kwambiri zimatanthawuza kuti liwiro la kutsogolo kwa screw lili pamwamba 300 mm/s. Pansi mkulu-liwiro jekeseni akamaumba, nthawi ya jekeseni nthawi zambiri imakhala mkati mwa 0.5s. High-speed injection is assisted by accumulators. The oil pump fills the accumulator during the “nthawi yozizira”, or a small oil pump can be used to fill the accumulator during times other than injection and pressure holding. The stored high-pressure oil is released during injection, which can generally increase the injection speed by 3 nthawi.

Blow demoulding

If the product can be demolded by blowing, it is easy to blow while opening the mold. Nthawi zambiri, the air blowing is delayed after the mold is opened to hide the demolding time in the mold opening time.

Pneumatic demolding

Pneumatic ejection is realized on a small china china injection molding machine that requires little ejection force, so that mold opening and closing are parallel to ejection and ejection, which saves about 1s of ejector action time, zomwe ndizofunika kwambiri pamakina ang'onoang'ono opangira jakisoni aku China. , Ndipo potsiriza anafika nthawi yozungulira ya 2s.

Chachiwiri bwino

Mtengo wamakina opangira jakisoni waku China wokhala ndi maulendo atatu odziyimira pawokha ndiwokwera kwambiri. Makina awiri opangira ma jakisoni aku China omwe amagwiritsa ntchito makina amafuta amodzi pachipangizo cholumikizira ndi gawo lina lamafuta pachida chajakisoni.. Izi zimatengera gawo lalikulu la makina opangira jakisoni aku China.

Ganizirani za bolodi lozungulira mafuta la chipangizo cholumikizira ndi bolodi lozungulira mafuta pa chipangizo cha jakisoni.

Makina opangira jekeseni wamafuta a Hybrid China China amaphatikiza zabwino zama drive awiri, ndipo amalumikizana mwanzeru. Kapangidwe kake ndikudyetsa magetsi ndi zochita zina za hydraulic pressure, monga FLYSE china jekeseni makina akamaumba.

Jekeseni wapampu kawiri

Mapangidwe a pampu apawiri amagwiritsa ntchito pampu imodzi yokha yamafuta panthawi yobaya. Dera lamafuta limatha kusinthidwa pang'ono kuti mapampu awiriwa agwiritsidwe ntchito jekeseni, potero kuwonjezera liwiro la jekeseni pafupifupi kuwirikiza kawiri.

Hot Runner nkhungu

Wothamanga wotentha amatha kufupikitsa kuzungulira m'njira zambiri.

1. Ngati m'mimba mwake ozizira wothamanga ndi wamkulu kuposa makulidwe a yomalizidwa mankhwala, a “nthawi yozizira” adzayenera kudikirira kuti wothamanga azizizira pamlingo winawake nkhungu isanatsegulidwe, koma chomalizidwacho chazirala kale, kuwononga. Wothamanga wa nkhungu yothamanga yotentha sayenera kuziziritsidwa, ndipo mankhwala omalizidwa amatsimikizira nthawi yozizira.

2. Kuchuluka kwa pulasitiki mu wothamanga ozizira ndi peresenti ya kuchuluka kwa pulasitiki yomalizidwa, even if it is heavier than the finished product, the injection and feeding time will be lengthened. The use of hot runner molds saves the injection and feeding time required for runner plastics.

3.There are nozzles in the cold runner, and the mold opening stroke should be increased.

4. In multi-cavity injection molding, the cold runner does not guarantee whether the finished product will fall or not. It needs to be taken out with a robotic arm (automatic operation) or manually (semi-automatic operation), and the cycle will be slowed down.