3D texture electroforming reprinting injection molding part, mold and process

Abstract

The invention relates to the technical field of mobile phone back shells, in particular to a 3D texture electroforming reprinting injection molding part, mold and process. The mold comprises a front mold core and a rear mold core, a cavity used for forming the 3D texture electroforming reprinting injection molding part is formed between the front mold core and the rear mold core, and the rear moldcore comprises a base plate body and a texture forming plate body formed through electroforming reprinting. A convex part is formed on the surface of the texture forming plate body through electroforming reprinting, and the convex part is located in the cavity and used for forming an optical texture groove during injection molding. The base plate body is made of mold core steel, the texture forming plate body is made of nickel, and the texture forming plate body is connected to the surface of the base plate body. According to the 3D texture electroforming reprinting injection molding part, mold and process, the bottleneck of injection molding offset of a mold manufactured through a machining technology is broken through, the size precision of the optical texture groove of the injection molding part obtained through injection molding is improved, and meanwhile the problem of laser burning residues occurring when laser engraving is conducted on the texture groove is solved.

Description

technical field [0001] The invention relates to the technical field of mobile phone back shells, in particular to a 3D texture electroforming and reprinting injection molded part, a mold and a process thereof. Background technique [0002] At present, the appearance decoration of the back cover in the domestic mobile phone market is becoming more and more diversified. The mid-to-high-end models launched by many domestic mobile phone manufacturers in recent years all use texture decoration technology. Existing texture decoration generally engraves optical texture grooves on the surface of injection-molded casing parts by laser, and when the casing parts are rotated, the optical texture grooves will reflect regularly changing optical effects under light; the existing processing technology requires Laser engraving is carried out after injection molding the casing parts, which has many procedures, low production efficiency and high production cost, and laser burning residues are...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a 3D texture electroforming reprinting injection molded part, mold and its process in view of the deficiencies of the prior art, with high production efficiency and low production cost, and can solve the problem of laser burning residue in the notch during processing and molding

Images