Momwe mungasankhire makina opangira jekeseni wachiwiri

Momwe mungasankhire a makina opangira jekeseni wachiwiri

Zinthu zofunika zomwe nthawi zambiri zimakhudza kusankha makina opangira jekeseni ndi nkhungu, mankhwala, pulasitiki, amafuna akamaumba, etc.. Chifukwa chake, mfundo zotsatirazi ziyenera kusonkhanitsidwa kapena kupezedwa musanasankhe: 1. Kukula kwa nkhungu (m'lifupi, kutalika, makulidwe) , kulemera, kapangidwe kapadera, etc.; 2. Mtundu ndi kuchuluka kwa pulasitiki yogwiritsidwa ntchito (zopangira imodzi kapena mapulasitiki angapo); 3. Kukula kwa mawonekedwe (kutalika, m'lifupi, kutalika, makulidwe) ndi kulemera kwa mankhwala opangidwa ndi jekeseni; 4. Zofunikira pakuumba, monga Quality mikhalidwe, liwiro kupanga, etc.. Pambuyo kupeza zambiri pamwamba, mutha kutsata njira zomwe zili pansipa kuti musankhe makina opangira jakisoni apulasitiki oyenera:

1. Sankhani choyenera mtundu:

Popeza pali mitundu yambiri ya makina opangira jekeseni wachiwiri, m'pofunika kuweruza molondola mtundu wa makina opangira jekeseni kapena mndandanda wa mankhwala omwe ayenera kupangidwa pachiyambi, monga general thermoplastic kapena bakelite zopangira Kapena PET zopangira, etc., ali amtundu umodzi, mitundu iwiri, mitundu yambiri, interlayer kapena mtundu wosakanikirana, etc..

Kuphatikiza apo, mankhwala ena amafuna kukhazikika kwakukulu (kutseka kotsekedwa), mwandondomeko kwambiri, jekeseni wokwera kwambiri, kuthamanga kwa jekeseni kapena kupanga mofulumira (Mipikisano kuzungulira), etc., ndipo mndandanda woyenera uyeneranso kusankhidwa kuti upangidwe.

2. Ikhoza kukwanira jekeseni nkhungu:

Sankhani ngati “mtunda waukulu wamkati”, “makulidwe a nkhungu”, “kukula kochepa kwa nkhungu” ndipo “nkhungu mbale mbale” makinawo ndi oyenera malinga ndi kukula kwa nkhungu, kuti atsimikizire ngati nkhungu ikhoza kuikidwa.

Zindikirani: ①Kukula ndi kutalika kwa nkhungu ziyenera kukhala zazing'ono kuposa kapena mbali imodzi ndi yaying'ono kuposa mtunda wamkati wa gawo lalikulu.; ②The width and height of the mold should preferably be within the size range of the mold plate; ③The thickness of the mold should be between the mold thickness of the injection molding machine; ④The width and height of the mold must meet the minimum mold size recommended by the injection molding machine, and it is not acceptable if it is too small.

3. Take out injection molding products:

Sankhani ngati “nkhungu kutsegula sitiroko” ndipo “mold ejection stroke” are sufficient for the finished product to be taken out by the mold and the finished product.

①The mold opening stroke must be at least twice the height of the finished product in the direction of opening and closing the mold, and must include the length of the vertical sprue;

②The ejection stroke must be sufficient to eject the finished product.

4. Can lock the plastic solution:

Kuchuluka kwa “clamping mphamvu” anatsimikiza ndi mankhwala ndi pulasitiki.

When the raw material is injected into the mold cavity at high pressure, it will generate a force to support the mold. Chifukwa chake, Clamping wa makina jekeseni akamaumba ayenera kupereka zokwanira “clamping mphamvu” to keep the mold from being stretched. The calculation of the clamping force requirement is as follows:

① Obtain the projected area of ​​the finished product in the direction of the opening and closing mold from the appearance size of the finished product; /cm2); ③The pressure in the mold varies with the raw material, and the general raw material is 350~400kg/cm2; more than double. Pakadali pano, the specifications of the clamping unit have been preliminarily determined, and the tonnage of the model has been roughly determined. Ndiye, the following steps must be carried out to confirm which injection unit has a more suitable screw diameter.

5. Kuwombera kudzaza jekeseni nkhungu pabowo:

Dziwani zofunikira “kuchuluka kwa jakisoni” ndikusankha zoyenera “wononga awiri” kutengera kulemera kwa chinthu chomalizidwa komanso kuchuluka kwa zibowo za nkhungu.

Kuwerengera kulemera kwa mankhwala omalizidwa, kuchuluka kwa zibowo za nkhungu (nkhungu imodzi yokhala ndi mabowo angapo) ziyenera kuganiziridwa;

Chifukwa chokhazikika, voliyumu ya jakisoni iyenera kupitilira 1.35 nthawi zolemera za mankhwala omalizidwa, ndiye, kulemera kwa mankhwala omalizidwa kuyenera kukhala mkati 75% voliyumu ya jekeseni.

6. jekeseni magawo makina opangira jekeseni:

Zinthu monga “kagwere psinjika chiŵerengero” ndipo “kuthamanga kwa jakisoni” amaweruzidwa ndi pulasitiki. Mapulasitiki ena auinjiniya amafunikira kupanikizika kwambiri kwa jakisoni komanso kapangidwe koyenera ka screw compression ratio kuti akhale ndi mawonekedwe abwino. Chifukwa chake, kuti apange jekeseni womalizidwa bwino, Kuthamanga kwa jekeseni ndi chiŵerengero cha kuponderezana chiyeneranso kuganiziridwa posankha screw. . Mwambiri, wononga yaying'ono m'mimba mwake imapereka kuthamanga kwambiri kwa jekeseni.

7. Kuthamanga kwa jekeseni makina opangira jekeseni:

Chitsimikizo cha “liwiro la jakisoni”. Zina zomalizidwa zimafunikira jakisoni wokwera kwambiri komanso jakisoni wachangu kuti apange mokhazikika, monga zinthu zowonda kwambiri. Pamenepa, zingakhale zofunikira kutsimikizira ngati mlingo wa jekeseni ndi liwiro la jekeseni wa makinawo ndi wokwanira , kaya ikufunika kukhala ndi pressure accumulator, kutsekereza kuzungulira ndi zida zina. Nthawi zambiri, momwemonso, screw yomwe ingapereke kuthamanga kwapamwamba kwa jekeseni nthawi zambiri imakhala ndi mlingo wochepa wa jekeseni, ndipo m'malo mwake, screw yomwe ingapereke mphamvu yotsika ya jekeseni nthawi zambiri imakhala ndi mlingo wapamwamba wa jekeseni.

Chifukwa chake, posankha awiri a screw, voliyumu ya jekeseni, jekeseni kuthamanga ndi mlingo jekeseni (liwiro la jakisoni) ziyenera kuganiziridwa ndi kugulitsidwa. Kuphatikiza apo, multi-loop design can also be used to shorten the molding time with synchronous compound actions.

Ngati muli ndi mafunso pa jekeseni akamaumba ,plz khalani omasuka kufunsa Gulu la FLYSE,tidzakupatsani utumiki wabwino kwambiri!