Production process of mobile phone shell and its membrane pressing device and mobile phone shell made therefrom

Abstract

The invention discloses a production technology of a cell phone case, a film pressing device and a produced cell phone case. The production technology comprises the steps of cutting a base material, an outer material layer and an inner material layer into flake-shaped structures with corresponding sizes; respectively attaching the cut inner material layer and the cut outer material layer to the inner and outer sides of the base material through hot melt glue; overturning the part, exceeding the edge of the base material, of the periphery of the outer material layer, inwards, and attaching the overturned part to the inner side of the base material, to obtain an A; heating the A at the temperature of 110 DEG C to 160 DEG C to soften the base material to obtain a B; and putting the B into the film pressing device to obtain the cell phone case through one-step film pressing molding. According to the production technology, the cell phone case is produced through adopting a film pressing manner, so that the attaching difficulty of the material layers is reduced, and the production efficiency is improved; and the peripheral part of the outer material layer is overturned inwards to coat the inner side surface of the side wall, so that the phenomenon that the outer material layer is liable to separate or fall off is overcome, the edge tanning procedure for the side wall is eliminated, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technology in the field of mobile phone accessories, in particular to a production process of a mobile phone shell, a membrane pressing device and the prepared mobile phone shell. Background technique [0002] In recent years, with the development of communication technology and the gradual improvement of people's living standards, ordinary mobile phones have gradually been replaced by smart phones. Smart phones are favored by consumers because they integrate multiple functions such as cameras, computers and PADs. . Smartphones are mostly touch screens, so there are various mobile phone protective cases, which are used to protect the mobile phone from impact, scratches, and beautiful appearance of the mobile phone. [0003] The existing mobile phone shells are generally molded into the base of the mobile phone shell by injection of PP or PE, and then a leather layer is pasted on both sides of the base. This production meth...

AI Technical Summary

Problems solved by technology

[0003] Existing mobile phone shells are generally molded into the base of the mobile phone shell by injection of PP or PE at one time, and then a leather layer is pasted on both sides of the base. This production method has the following disadvantages: 1. Such a production method It will often increase the overall thickness of the mobile phone shell, and the use effect is not ideal; 2. The bottom plate and side wall of the formed substrate will form a bend, which increases the difficulty of skinning and reduces production efficiency. At the same time, when bending The cortex attached to the place is also prone to wrinkles, lax attachment, and easy to fall off, which reduces the aesthetics of the mobile phone case and causes poor use of the mobile phone case; 3. In order to make the mobile phone case more beautiful, the cortex should be attached well Finally, the side wall needs to be oiled, which increases the production and processing process of the mobile phone shell, increases the production cost, and causes a further reduction in production efficiency, and the oiled edge is also easy to fall off, which cannot achieve the original purpose of beautifying the mobile phone shell

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