Momwe mungagulire makina oyenera a jakisoni wa China

Nthawi zambiri, makasitomala ambiri omwe akhala akugwira ntchito yopanga jekeseni kwa zaka zambiri, have the ability to judge for themselves and choose the suitable china makina opangira jekeseni to produce. Komabe, nthawi zina, wogula angafunike thandizo la wopanga posankha makina opangira jekeseni omwe angagwiritse ntchito, or even the customer may just have the sample or idea of ​​the product and then ask the manufacturer. whether the machine can be produced or which model is compared.

Kuphatikiza apo, some special products may require special devices such as pressure accumulators, malupu otsekedwa, kupanikizika kwa jakisoni, etc., to be produced more efficiently. It can be seen that how to determine the appropriate injection molding machine to produce is an extremely important question. The following information is provided for the convenience of readers.

Important factors that generally affect the selection of an injection machine include molds, mankhwala, mapulasitiki, amafuna akamaumba, etc.. Chifukwa chake, the following information should be collected or available before making a selection:

◆ Nkhuni kukula (m'lifupi, kutalika, makulidwe), kulemera, kapangidwe kapadera, etc.. ;

◆ Type and quantity of plastic ntchito (a single raw material or several plastics);

Kukula kwa mawonekedwe (kutalika, m'lifupi, kutalika, makulidwe), kulemera, etc.. injection molded product;

After getting the above information, you can follow the steps below to select a suitable injection machine:1. Choose the right model: the model and series depend on the product and the plastic. Because there are many types of china makina ojambulira, it is necessary to determine correctly from which injection molding machine or series the product should be initially made, such as common thermoplastic or bakelite raw materials or PET raw materials. Mtundu, mitundu iwiri, multicolor, interlayer kapena mtundu wosakanikirana, etc.. Kuphatikiza apo, mankhwala ena amafuna zinthu monga bata mkulu (kutseka kotsekedwa), high accuracy, very high fire, high firing pressure or fast production (Mipikisano kuzungulira), and a suitable series must also be selected for production.

2. Ikhoza kuikidwa pansi: the mold size determines whether the “large column inside distance”, “makulidwe a nkhungu”, “kukula kochepa kwa nkhungu” ndipo “nkhungu mbale mbale” of the machine are suitable to ensure that the mold can be put down.

◆ The width and height of the mold must be less than or at least one side smaller than the inside distance of the large column;

◆ The width and height of the mold must correspond to the minimum mold size recommended by the injection molding machine and is too small.

3. It can be obtained: the mold and the final product determine whether the “mold opening strokes” ndipo “mold strokes” are sufficient to remove the final product.

◆ The opening stroke of the mold must be at least twice the height of the final product in the direction of opening and closing of the mold, and the length of the casting must be included;

4. The clamping unit that can lock the injection machine must provide enough “clamping mphamvu” kuteteza nkhungu kuti isatsegulidwe. Kuwerengera kwa kufunikira kwa clamping force ndi motere:

◆Calculate the projected area of ​​the finished product in the direction of the switch mold from the appearance size of the finished product;

◆Mould support force = projected area of ​​the finished product in the direction of the switch mold (cm2) × chiwerengero cha mphako nkhungu × kuthamanga mu nkhungu (makilogalamu / cm2);

◆The pressure in the mold varies with the raw material, and the general raw material is 350～400kg/cm2;

◆The clamping force of the machine must be greater than the clamping force, ndi chifukwa cha chitetezo, clamping mphamvu ya makina nthawi zambiri 1.17 nthawi zambiri kuposa mphamvu yothirira.

5. Kuwombera kwathunthu: Dziwani zofunikira “kuchuluka kwa jakisoni” kuchokera kulemera kwa zomwe zatsirizidwa ndi kuchuluka kwa zikopa za nkhungu ndikusankha koyenera “wononga awiri”.

◆The number of mold cavities (nkhungu imodzi ndi mabowo angapo) ziyenera kuganiziridwa powerengera kulemera kwa zomwe zatsirizidwa;

◆For the sake of stability, the injection volume must be 1.35 nthawi zolemera za mankhwala omalizidwa, ndiye, kulemera kwa mankhwala omalizidwa kuyenera kukhala mkati 75% voliyumu ya jekeseni.

6. Jekeseni wabwino: the conditions of “kagwere psinjika chiŵerengero” ndipo “kuthamanga kwa jakisoni” zimatsimikiziridwa ndi pulasitiki. Mapulasitiki ena amisiri amafuna kuthamanga kwambiri kwa jekeseni ndi mapangidwe oyenera a kukomoka kuti akhale ndi zotsatira zabwino pakuumba. Chifukwa chake, kuti mankhwala omalizidwa awombedwe bwino, the injection pressure requirements and compression ratio issues must also be considered when selecting the screw. .

7.7. Shooting fast: and confirmation of “liwiro lakuwombera”. Zinthu zina zomalizidwa zimafuna mulingo wambiri wa jekeseni ndi jakisoni wofulumira wokhazikika, monga kopitilira muyeso-woonda mankhwala omalizidwa. Pamenepa, kungakhale kofunikira kutsimikizira ngati kuchuluka kwa jakisoni ndi kuchuluka kwa jakisoni wa makina ndikokwanira, komanso ngati iyenera kukhala ndi zida zowonjezera, zotseka zotseka ndi zida zina. Nthawi zambiri, momwemonso, wononga womwe ungapereke jekeseni wapamwamba nthawi zambiri umakhala ndi liwiro locheperako, m'malo mwake, wononga womwe ungapereke kutsika pang'ono kwa jekeseni nthawi zambiri umakhala ndi liwiro lalikulu. Chifukwa chake, posankha m'mimba mwake wononga, voliyumu ya jekeseni, jekeseni kuthamanga ndi mlingo jekeseni (liwiro la jakisoni) ziyenera kuwerengedwa pamtanda ndikusankhidwa.

Kuphatikiza apo, kapangidwe ka zingwe zingapo kangagwiritsidwenso ntchito kufupikitsa nthawi youmba ndi zochitika zofananira. Pambuyo pa masitepewa, momwe ziyenera kukhalira, makina opangira jekeseni omwe amakwaniritsa zofunikira amatha kutsimikizika, but there are some special issues that must be considered:

◆The problem of size matching:

Pazifukwa zina zapadera, nkhungu kapena kasitomala wa kasitomala atha kukhala ndi tinthu tating'onoting'ono tating'ono koma kuwombera kochuluka, kapena kukula kwakukulu kwa nkhungu koma kuwombera pang'ono. Pamenepa, zofunikira zomwe wopanga sangakhale nazo sizingakhalepo. Kukwaniritsa zosowa zamakasitomala, otchedwa “kukula kofananira” ziyenera kuchitika, ndiye, “khoma lalikulu kuwombera pang'ono” kapena “khoma laling'ono kuwombera kwakukulu”. Otchedwa “khoma lalikulu ndi jekeseni yaying'ono” amatanthauza choyambirira muyezo clamping kufa unit ndi kagwere kakang'ono jekeseni. M'malo mwake, a “khoma laling'ono ndi jekeseni wamkulu” amatanthauza choyambirira muyezo clamping wagawo wokulirapo jekeseni wononga. Kumene, Pakhoza kukhala magawo angapo a kusiyana pakati pa kukakamiza nkhungu ndi jakisoni.

Pogwiritsa ntchito, makasitomala ochulukirachulukira adzafunsa kuti agule zotchedwa “makina othamanga kwambiri” kapena “makina othamanga”. Nthawi zambiri, kuwonjezera pa zosowa za mankhwalawo, zolinga zambiri ndizofupikitsa nthawi ya kuumba ndikuwonjezera kutulutsa kwakanthawi, potero amachepetsa mtengo wopangira ndikusintha mpikisano. Nthawi zambiri, to achieve the above-mentioned purpose, there are several ways:

1. Speed ​​up the liwiro la jakisoni: kuonjezera galimoto ndi mpope, kapena onjezerani chosakanizira (makamaka kutseka kutsekemera);
2. Speed ​​up the feeding speed: increase the motor motor and pump, kapena kuchepetsa kuyendetsa galimoto yamagetsi kuti mufulumizitse kuthamanga;
3. Multi-loop system: adopts double-loop or three-loop design to perform compound actions simultaneously to shorten the molding time;
4. Increase the mold waterway to improve the cooling efficiency of the mold.

Ngati muli ndi mafunso pa mafakitale apulasitiki,plz omasuka kufunsa timu ya FLYSE,tidzakupatsani utumiki wabwino kwambiri!

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