UMA. molde de duas cores: dois tipos de materiais plásticos são injetados na mesma máquina de moldagem por injeção, que são moldados duas vezes, mas o produto só produz o molde uma vez. Geralmente, este processo de moldagem também é chamado de moldagem por injeção dupla, usually completed by a set of moulds, and requires a special two-color injection molding machine.
Over molding): two kinds of plastic materials are not necessarily injected on the same injection molding machine, e são moldados em duas vezes; after the product is taken out of one set of moulds, it is put into another set of molds for the second injection molding. Portanto, geralmente, this molding process is usually completed by 2 sets of moulds, without the need for a special two-color injection molding machine.
Overview of two color mold and over mold:
The design of over mold should pay attention to the positioning of the hard adhesive parts, and the adhesive can be sealed with reverse angle holes on the adhesive to prevent the deformation of the glue pulling
The double color mold is becoming more and more popular in the market. a fluidez da resina é insuficiente, the appearance of the product can be more beautiful, and it is easy to change color without spraying. Contudo, it is expensive and requires high technical requirements
1. The two shapes of cavity are different, forming one product respectively.
And the core has the same shape.
2. after the front and rear die of the die are rotated 180 o in the center, it must be consistent. This check action must be done in design.
3. pay attention to the position of the top pinhole, with a minimum distance of 210mm. The number of top rod holes shall be increased appropriately for large moulds. Além disso, because the thimble attached to the injection molding machine is not long enough, we must design an extended thimble in our mold, que é sobre 150 mm longer than the base plate of the mold embryo. Two locating rings must be designed on the bottom plate of the rear mold.
4. the total thickness of front formwork panel plus a plate shall not be less than 170mm. Please carefully check other reference data of this type of injection molding machine, such as maximum mold thickness, minimum mold tolerance thickness, top rod hole distance, etc.
5. the nozzle of the three board mold should be designed to automatically release the mold. Pay special attention to the feasibility of the release action of the soft glue nozzle.
6. the depth of front sprint shall not exceed 65mm. The distance from the top of sprue on the upper side (big water port) to the center of mold embryo shall not be less than 150 milímetros.
7. when designing the second injection molding, in order to avoid the injection (or scratch) of the molded product glue position for the first time, a part of the plastic can be designed to avoid air. But the strength of each sealing position must be carefully considered, isso é, will plastic deformation occur under large injection pressure during injection molding, which may lead to the possibility of batch front in the second injection molding?
8. during injection molding, the product size of the first injection molding can be slightly larger so that it can be pressed more tightly with another cabinet in the second molding to achieve the sealing effect.
9. note whether the flow of plastic will impulse the products that have been formed for the first time to deform the glue position during the second injection molding? If there is a possibility, we must find ways to improve it.
10. before closing the A and B plates, please pay attention to whether the slide or lifter of the front die will reset and crush the product first? Desta maneira, we must find a way to make the die close first in a and B boards, and then the slide or live of the front die can be reset.
11. the water transportation arrangement of both cability and core shall be as full as possible, and be balanced and the same.
12.99% of the cases are the hard plastic part of the injection product first, and then the soft part of the injection product. Because soft glue is easy to deform.
Sobre JasonMould Industrial Company Limited
Jasonmould é um Fabricante de moldes da china de moldes de plástico- molde de injeção, moldes de fundição sob pressão, moldagem por sopro de plástico, moldagem rotacional, médico moldagem por injeção de plástico, dois tiros moldagem por injeção de plástico, inserir moldagem, sobremoldagem, moldagem por injeção de metal, moldagem por micro injeção, moldagem por injeção de pó, moldagem por injeção de cerâmica, moldagem por injeção de líquido, moldagem por injeção husky, molde doméstico, molde de fundição, ferramenta de molde, moldes personalizados, moldes da china, ferramentas de prototipagem rápida, ferramentas de prototipagem de plástico, ferramentas de punção, matriz e ferramentas para peças móveis / celulares, partes automotivas, aspirador de pó, ferramentas recarregáveis, telefones, copiadoras, computadores, alto-falantes multimídia, e muitos outros produtos eletrônicos e eletrodomésticos. E também um fabricante de produtos de plástico, fabricante de moldes China- peças de plástico, tanque de água de plástico, bolas de plástico, recipientes de plástico, fivela de plástico, âncora de plástico, cabide de plástico, colher de plástico, encaixe de tubo de plástico, tombo de plástico, talheres de plástico, copos de plastico, garrafas plásticas, bandeja de plastico, recipiente plástico de cosmético, caixa de plástico, recipiente de plástico para comida, cadeiras de plástico, tampas de plástico, tampa de plástico, tubos de plástico, canos de água de plástico, maçanetas de plástico, tubo de plástico, caixas utilitárias de plástico, prateleiras de plástico e assim por diante.
Contato:
Pessoa: James Yuan
Empresa: JasonMould Industrial Company Limited
Adicionar: LongGang Village,LongXi Town,BoLuo County,Cidade de HuiZhou,Província de Guangdong, China
Tel: 86-752-6682869
E-mail: [email protected]
Local: https://www.jasonmolding.com/custom-injection-molding/
