Insert injection molding method for double-bamboo-skin panel

Abstract

The invention discloses an insert injection molding method for a double-bamboo-skin panel. The method comprises the following steps of: inserting bamboo skin into a female die of a molding die and placing the other bamboo skin on a male die of the molding die; injecting plastic cement into a die space after die closing; and keeping the die at a curing temperature for a certain length of time for molding and then taking the obtained product out. The method has the advantages that: the plastic cement is naturally bonded with the bamboo skin at a high temperature and a high pressure with high bonding strength and avoids cracking after the molding; the two surfaces of the panel are made of bamboo skin materials, so the thickness and strength of the panel are increased and the application amount of the plastic cement is reduced; the upper and the lower surfaces have the same shrinkage to resist shrinkage deformation generated in a plastic cement cooling process and avoid warping deformation after ejection; and a shell panel is provided, adopts natural materials rather than the conventional single plastic cement material in accordance with the environmental protection concept and has the natural textures and colors of the bamboo skin so as to promote the texture of the product and be widely applied in the fields of 3C (computer, communication, consumer electronic) household appliances and any product with a structure similar to lighting and automotive internal decoration structures.

Description

technical field [0001] The invention relates to a production method of a novel casing panel, in particular to an embedded injection molding method that can be widely applied to the casing panels of various 3C electronic products such as portable computers. Background technique [0002] Computer (Computer), Communication (Communication) and Consumer Electronics (Consumer Electronic) are three types of electronic products that are changing with each passing day and are inseparable from people's lives. For a long time, there are two types of materials for the shell and panel of 3C electronic products, one is metal materials In order to make corresponding products such as portable computer panels have a metal texture, while maintaining light weight and a certain strength, aluminum, aluminum alloys, titanium-magnesium alloys and other materials are often used; the other type is non-metallic materials, mostly plastic films Sheet, using its relatively low cost, at the same time in ...

AI Technical Summary

Problems solved by technology

[0002] Computer (Computer), Communication (Communication) and Consumer Electronics (Consumer Electronic) are three types of electronic products that are changing with each passing day and are inseparable from people's lives. For a long time, there are two types of materials for the shell and panel of 3C electronic products, one is metal materials In order to make corresponding products such as portable computer panels have a metal texture, while maintaining light weight and a certain strength, aluminum, aluminum alloys, titanium-magnesium alloys and other materials are often used; the other type is non-metallic materials, mostly plastic films Sheet, using its relatively low cost, at the same time in order to achieve a certain texture, use the mold to process a certain style of texture during injection molding, such as bamboo grain, wood grain, or spray topcoat to make the surface of the panel have a corresponding patterns and textures, but its texture is still not natural enough, and at the same time contradicts the natural environmental protection concept pursued by the world today

In order to make the product closer to nature and have richer connotations, there are panels with bamboo veneer as the surface material, which have the natural texture and color of bamboo veneer. The method is to paste a layer of bamboo skin on the outer surface of the plastic casing by pasting to make it have the texture and texture of the original bamboo material. The outer skin is easy to fall off, and the process of attaching is added, the production efficiency is low and the quality is not easy to guarantee