Ink-jet printing system for 3D bent glass cover plate and ink-jet machining method thereof

Abstract

The invention discloses an ink-jet printing system for a 3D bent glass cover plate. The ink-jet printing system comprises an ink supply system, an ink jet head transferring and printing mechanism, a multi-shaft mechanical arm and a control system. The ink supply system supplies printing ink to the ink jet head transferring and printing mechanism. The ink jet head transferring and printing mechanism is used for printing the 3D bent glass cover plate. The multi-shaft mechanical arm is used for installing the ink jet head transferring and printing mechanism. The control system sets up data information interconnection with the ink supply system, the ink jet head transferring and printing mechanism and the multi-shaft mechanical arm. The ink jet head transferring and printing mechanism comprises a printing head. The printing head is installed on the multi-shaft mechanical arm. The multi-shaft mechanical arm drives the printing head to steer or move freely, the printing head can be perpendicular to the printing plane of the 3D bent glass cover plate all the time, the printing head is connected with the ink supply system and the control system, and the control system completes printing work of the 3D bent glass cover plate by controlling opening and closing of the printing head. The ink-jet printing system is applicable to printing of the 3D bent glass cover plate, improves machining precision and increases the yield.

Description

technical field [0001] The invention belongs to the technical field of electronic product accessories, and relates to the printing of 3D curved glass cover plates, in particular to an inkjet printing system for 3D curved glass cover plates, and an inkjet processing method for realizing 3D curved glass cover plates using the system. Background technique [0002] With the development of science and technology and people's immediate demand for office and entertainment, handheld electronic devices are more and more popular among people, such as tablet computers, mobile phones and other handheld electronic devices. The electronic equipment industry is changing with each passing day. It has developed from a flat cover to a 2.5D structural cover, and now it has developed from a 2.5D cover to a 3D cover, and the 3D cover has developed from the original double-sided curved surface to the surrounding curved surface. [0003] The mobile phone or tablet needs to be decorated on the fron...

AI Technical Summary

Problems solved by technology

However, it is not easy to form customized patterns or graphics on the glass surface, and it is difficult to meet the diverse needs of users

[0004] Regardless of the technology of double-sided curved surfaces or surrounding curved surfaces, there are great technological challenges to traditional screen printing, because the screen can only print patterns on one side and one side, and it is easy to cause screen cracks and uneven ink on the edge of the raised edge. major flaw

Screen printing uses a scraper to print the ink in the screen grid onto the lower substrate through the scraping action. During the scraping action, the screen has deformation, the force is large, and the screen is very thin. If it is four-sided or single-sided The edge glass is punctured or scratched, and it is easy to break the screen, and the product and the screen are crushed at the same time. This process cannot meet the printing requirements of the four-sided curved 3D cover.

Furthermore, pad printing can be used for printing objects with uneven edges, but it cannot be realized for products with large edge warpage. Multiple overlapping printings are used to improve the risk of secondary pollution to products caused by large-area pad printing processes.

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