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Cooling protection type multi-plastic-film injection molding technology

A film and process technology, applied in the field of cooling and protective multi-film injection molding process, can solve the problems of poor automotive trim, melting and deformation of base materials, deformation of film parts, etc., and achieve the effect of improving the injection molding yield.

Inactive Publication Date: 2019-11-12
DONGGUAN HIROCA AUTOMOTIVE TRIM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of science and technology and the development of economy and society, cars have gradually become the means of travel for more and more families. In the process of manufacturing cars, various car accessories are needed. It mainly includes plastic parts and the decorative layer covered on the plastic parts. In order to improve the production efficiency of automotive trim parts, a technology of injection molding plastic parts on the decorative layer has emerged, that is, the molten plastic is injected on the plastic film parts, and the injection molding During the process, the molten plastic contacting the film parts will cause the temperature of the base material of the film parts to be too high and cause the base material to melt and deform, which will lead to the deformation of the film parts and cause the automotive trim parts after injection molding to become defective products

Method used

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  • Cooling protection type multi-plastic-film injection molding technology
  • Cooling protection type multi-plastic-film injection molding technology

Examples

Experimental program
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Effect test

Embodiment 1

[0033] see figure 1 and figure 2 Shown, a kind of cooling protective type multi-adhesive film injection molding process of the present invention comprises the following steps:

[0034] A first adhesive film 1 and a second adhesive film 2 are provided, the first adhesive film 1 has a first main body portion 12, the second adhesive film 2 has a second main body portion 14, and the first main body portion 12 and the second main body portion 14 have The patterns, graphics or colors are different. For example, the color of the first main body part 12 is silver, and the color of the second main body part 14 is black. Graphics or colors are used to decorate the car, and the first film 1 and the second film 2 are combined to form a car logo 3;

[0035] An injection mold 4 is provided, and the vehicle logo 3 is put into the injection mold cavity of the injection mold 4, and the injection mold 4 has a glue inlet communicating with the injection mold cavity;

[0036] Provide a coolin...

Embodiment 2

[0050] see figure 1 and figure 2 As shown, the cooling assembly 5 includes a cooling hole arranged on the injection mold 4, the cooling hole is used to communicate with the external cooling device, and the cooling device is used to input the external cooling fluid (such as cooling liquid, cooling oil or cooling fluid) into the cooling hole. Cooling gas, etc.), the cooling fluid passes through the injection mold 4 to reduce the temperature of the vehicle logo 3.

[0051] After the vehicle logo 3 is put into the injection mold cavity, the injection mold 4 completes the mold clamping, and then the cooling device injects cooling fluid into the cooling hole, and the cooling fluid passes through the injection mold 4 to the first film 1 or the first film 1 of the vehicle logo 3 / and the second adhesive film 2 are cooled, and then the external molten plastic is injected into the injection mold cavity through the glue inlet, and the cooling fluid is used to cool the vehicle logo 3 t...

Embodiment 3

[0054] see figure 1 and figure 2 As shown, the first bonding edge 13 of the first adhesive film 1 and the second bonding edge 15 of the second adhesive film 2 are bonded and fixed together by glue, and the first adhesive film 1 and the second adhesive film 1 are bonded together by glue. The film 2 is bonded and fixed together, which simplifies the fixing structure between the first bonding edge 13 and the second bonding edge 15, and improves the connection efficiency between the two bonding edges.

[0055] The rest of this embodiment is the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to the technical field of multi-plastic-film injection molding, and particularly discloses a cooling protection type multi-plastic-film injection molding technology. The coolingprotection type multi-plastic-film injection molding technology comprises the following steps that a first plastic film and a second plastic film are provided, and an automobile logo mark is formed through combination of the first plastic film and the second plastic film; an injection mold is provided, the automobile logo mark is placed in an injection mold cavity of the injection mold, and the injection mold is provided with a plastic inlet hole communicating with the injection mold cavity; a cooling assembly is provided and used for cooling the automobile logo mark; fusion plastics are injected into the injection mold cavity of the injection mold through the plastic inlet hole, and a plastic film decoration piece is formed by the cooled and cured fusion plastics and the automobile logo mark; and when outside fusion plastics enter the injection mold cavity from the plastic inlet hole, the cooling assembly conducts cooling treatment on the automobile logo mark, the situation that due to the fusion plastics, the temperature of base materials of the first plastic film or the second plastic film is too high, and consequently the base materials are melted and deform is avoided, and theinjection molding yield of the plastic film decoration piece is improved.

Description

technical field [0001] The invention relates to the technical field of multi-adhesive film injection molding, and in particular discloses a cooling protection type multi-adhesive film injection molding process. Background technique [0002] With the improvement of science and technology and the development of economy and society, cars have gradually become the means of travel for more and more families. In the process of manufacturing cars, various car accessories are needed. It mainly includes plastic parts and the decorative layer covered on the plastic parts. In order to improve the production efficiency of automotive trim parts, a technology of injection molding plastic parts on the decorative layer has emerged, that is, the molten plastic is injected on the plastic film parts, and the injection molding During the process, the molten plastic contacting the film parts will cause the temperature of the base material of the film parts to be too high, which will cause the ba...

Claims

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Application Information

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IPC IPC(8): B29C69/02B29C45/14B29C45/17B29C45/27B29C45/73B29C51/10B29C51/42B29C65/18B29C65/52B29L31/30
CPCB29C45/14508B29C45/17B29C45/27B29C45/73B29C51/10B29C51/421B29C65/18B29C65/52B29C66/1142B29C69/02B29C2045/14868B29L2031/3005B29L2031/7232
Inventor 余泽民庄吴钏李叔明
Owner DONGGUAN HIROCA AUTOMOTIVE TRIM TECH CO LTD
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