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Injection molded product and method for producing the same

A technology of injection molding and manufacturing methods, applied in the direction of layered products, electrical components, electrical equipment shells/cabinets/drawers, etc., can solve the problems of cracking and shrinkage in the peripheral area, and achieve crack resistance, simple manufacturing methods, and good appearance good effect

Inactive Publication Date: 2011-12-28
SHENZHEN FUTAIHONG PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in shrinkage between the decorative film and the plastic, part or the entire peripheral area of ​​the decorative film and the plastic layer are prone to cracking on the combined periphery.

Method used

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  • Injection molded product and method for producing the same
  • Injection molded product and method for producing the same
  • Injection molded product and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] see figure 1 , the preferred embodiment of the injection molded product of the present invention is illustrated by taking a housing 10 as an example, such as a mobile phone housing. The casing 10 includes a first decoration layer 12 , a middle layer 14 and a second decoration layer 16 .

[0037] Both the first decorative layer 12 and the second decorative layer 16 are soft material layers, which can be decorative films such as films, leather, fabrics, etc. made of resin, glass, fiber, or polymer materials. The first decoration layer 12 and the second decoration layer 16 are located on the upper and lower surfaces of the middle layer 14 respectively, patterns can be formed on the first decoration layer 12 and the second decoration layer 16, and the patterned side is combined with the middle layer 14 , that is, the pattern is formed on the inner surface of the first decoration layer 12 and the second decoration layer 16, and the pattern will not be exposed on the outer s...

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Abstract

The invention discloses an injection molded product and a manufacturing method thereof. The injection molded product comprises a first decorative layer, a second decorative layer, an intermediate layer, and an edge sealing layer. The first decorative layer and the second decorative layer The layers are all soft material layers. The first decorative layer and the second decorative layer are integrally laminated on the two opposite surfaces of the middle layer through the first injection molding to form a peripheral part at the same time. The edge sealing layer is passed through the second injection molding. injection molding on the peripheral portion to cover the peripheral portion. The manufacturing method of the injection molded product comprises: arranging the first decorative layer and the second decorative layer on both sides of the mold cavity respectively, and then injecting plastic into the middle of the cavity to combine the plastic with the first decorative layer and the second decorative layer respectively A preform is formed, and then the preform is placed into another mold for injection molding to form the edge banding layer. The injection molded product prevents the edge of the injection molded product from cracking by forming an edge sealing layer.

Description

technical field [0001] The present invention relates to an injection molding product and its manufacturing method. Background technique [0002] Plastic has the characteristics of light weight, easy manufacture and low cost, and has become a common material for injection molding products such as electronic device housings. When making, the molten plastic is first poured into the cavity of the mold, and the plastic is shaped into the required shell shape according to the shape of the cavity. [0003] However, the appearance and texture of plastic products are not good. In order to improve the appearance of injection molded products, especially the shell, a layer of topcoat is generally sprayed on the surface of the plastic products. However, the surface paint sprayed has poor abrasion resistance. After a long time of use, the housing is easy to cause multiple scratches due to friction, and even the whole piece falls off, which seriously affects the appearance of the housing....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/00B29C45/14B29C45/16B32B3/06
CPCB29C45/14336B29K2713/00B29C45/1671B29C2045/14532B29C45/14467B29K2711/08Y10T428/31703
Inventor 吴焜灿田力维
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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