A kind of processing technology of battery cover protective sleeve

Abstract

The invention relates to the technical field of battery cover protective sleeves, in particular to a processing technology for a battery cover protective sleeve. The processing technology includes the following steps that firstly, a thin film is prepared; secondly, an ink layer is printed and dried; thirdly, a removable adhesive layer is printed and dried; fourthly, a positioning hole is punched; fifthly, the thin film is put into a mold; sixthly, silicon rubber is put into the mold; seventhly, the mold is closed, and forming is achieved; eighthly, a semi-finished product attached to the silicon rubber is taken out; ninthly, the semi-finished product is cooled, and the silicon rubber is taken down; and finally, the outline is punched. The battery cover protective sleeve manufactured through the processing technology has the advantages of being small in thickness, stable in outline size and good in toughness and strength, and therefore the battery cover protective sleeve can be tightly matched with a battery and a battery machine case, and light leakage of the battery cover protective sleeve can be avoided. The processing technology for the battery cover protective sleeve has the characteristics of being simple, low in production cost and suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of battery cover protective sleeves, in particular to a processing technology for battery cover protective sleeves. Background technique [0002] The battery cover protective cover of the mobile phone is used to prevent dust and debris from entering the battery case. When the battery case falls, the battery can be prevented from flying out of the battery case. Therefore, this kind of battery cover protective cover must be very thin and cannot occupy too much space. The thickness is generally required to be 0.1mm~0.2mm. In addition, since it is necessary to ensure that the gap between the protective cover and the battery is small, the corners and shapes processed on the battery cover protective cover must closely match the battery and the battery casing. In addition, it is also required that the battery cover protective cover should not be too brittle, and must have certain toughness and strength. At the sam...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, although the size and appearance of the battery cover protective sleeve processed by injection molding are relatively stable, it is difficult to process it by injection molding because the thickness of the battery cover protective sleeve is required to be 0.1mm~0.2mm. Even if such a thin battery cover cover can be processed, such a thin battery cover cover will be very brittle and easy to break, resulting in a high defect rate of the product, which is not suitable for production

In addition, due to the need to print colors on the battery cover protective cover, the battery cover protective cover processed by injection molding has irregular concave surfaces, and these irregular concave surfaces are difficult to print.

[0004] In addition, in the prior art, the ordinary film is first processed into a three-dimensional shell shape, and the required ink color is printed on the three-dimensional shell shape, and then the battery cover protective cover is processed by making a corresponding stretching mold for hot pressing. However, the battery cover protective sleeve processed by this method has the following disadvantages: (1) The gap between the processed battery cover protective cover and the battery and the battery casing is relatively large, resulting in that it cannot be tightly connected to the battery and the battery casing. (2) After using the stretching mold for hot press forming, when the stretching mold is separated from the formed battery cover protective sleeve, the formed battery cover protective sleeve will rebound, resulting in the size of the battery cover protective sleeve. Stable; (3) This hot press forming method cannot process very small bends; (4) The stretching die will squeeze the ink layer on the three-dimensional shell during the stretching process, resulting in the processed light leaks from the battery cover protector