Mobile phone, mobile phone rear shell with touch pad operation function and manufacturing method thereof

Abstract

The invention relates to the field of intelligent terminal design, in particular to a mobile phone, a mobile phone rear shell with a touch pad operation function and a manufacturing method thereof. The mobile phone comprises the rear shell with the touch panel operation function, wherein the rear shell is manufactured by adopting a touch pad IMR process injection mold. According to a hidden spruesystem adopted by the method, the technical problem that plastic material flow cannot be flushed and flanged to be injected onto the surface of the diaphragm, namely problem of the glue leakage in injection molding, is solved.

Description

technical field [0001] The invention relates to the field of intelligent terminal design, in particular to a mobile phone, a mobile phone rear case with a touch panel operation function and a manufacturing method thereof. Background technique [0002] At present, the screen of smart phones tends to be large-screen, and the operation requires one hand to hold the mobile phone and the other hand to operate the screen, which can be completed with the cooperation of both hands, which brings inconvenience to users; A smart phone with a touchpad operation function on the back shell, this technology belongs to the prior art, however, in the prior art, the injection mold manufacturing process for the back shell of the mobile phone with the touch panel operation function is inefficient, and the existing The mobile phone back shell with the touch panel operation function manufactured by injection molding needs to be improved in terms of structural strength, sealing performance, and an...

AI Technical Summary

Problems solved by technology

[0002] At present, the screen of smart phones tends to be large-screen, and the operation requires one hand to hold the mobile phone and the other hand to operate the screen, which can be completed with the cooperation of both hands, which brings inconvenience to users; A smart phone with a touchpad operation function on the back shell, this technology belongs to the prior art, however, in the prior art, the injection mold manufacturing process for the back shell of the mobile phone with the touch panel operation function is inefficient, and the existing The mobile phone back shell with touchpad operation function made of injection mold needs to be improved in terms of structural strength, sealing, and anti-aging performance

[0003] The IMR process is to place a part of the continuous sheet in the mold cavity. After injection molding, the plastic will take away the silk screen pattern on the surface of the sheet and separate it from the sheet; IML is to place the transparent sheet with silk screen printing on the back into the mold cavity after molding. After injection molding, it is integrated with the plastic, and the silk screen part is sandwiched between the sheet and the plastic. The process of IMF, INS and IML is similar. The difference is that IMF injects the entire diaphragm with shallow edges, and IML only applies to the local area of ​​the product. Carry out injection molding of film inserts; INS is relative to IMF, which deep-draws the entire film with appearance and then makes it into an insert before injection molding. In the industry, IML / IMF / INS are generally called IMD, and IMR is independent. The difference between IMD and IMR The difference between the finished product is mainly whether there is a layer of transparent material on the surface: IMD has a layer of transparent PC or PET sheet (about 0.1mm), and the pattern is not easy to wear; the surface of IMR is only a layer of ink (thickness can be only a few microns) ), not as wear-resistant as IMD; one advantage of IMR application is that for textured decoration, the pattern is more realistic, the injection molding cycle is short, the cost is relatively low, and it has been widely used in the industry, but the related plastic parts molding theory and The forming equipment cannot form the entire diaphragm to achieve zero-defect production. It is planned to combine the rear shell of a new mobile phone with touch panel operation function to apply the IMR injection molding mold required for the production of the IMR process to make structural design innovations.

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