Color three dimensional curved surface ink jet printing equipment

Abstract

The invention discloses color three dimensional curved surface ink jet printing equipment which is used for color curved surface ink jet printing of three dimensional objects. The equipment mainly comprises a control system, an ink jet system, an ink supply system, a printing platform, a drying system, a curing system, a monitoring system and an indicating and alarming system. A nozzle is motionless during ink jetting, so that the ink jet printing accuracy can be effectively improved; CMYK (cyan, magenta, yellow and black) four-color ink jet printing is sequentially performed on the conventional curved surface part of a printed object with a conventional nozzle and on the complex curved surface part of the printed object with a capillary nozzle through the synchronous motion of the equipment and the curved surface of the printed object during the ink jetting process. The combined ink jet printing mode of the equipment can not only realize complex curved surface ink jet printing, but also improve the curved surface printing quality and increase the curved surface printing speed, shortens the printing time, and obtains high-quality color three dimensional ink jet printing effect of the printed object.

Description

technical field [0001] The invention relates to an ink-jet printing device, in particular to a color three-dimensional curved surface ink-jet printing device. Background technique [0002] At present, conventional printing equipment such as offset printing machines, gravure printing machines, and digital printing machines are used for graphic printing of flat materials. Due to the changing curved surface of three-dimensional objects, it is difficult to apply the method of traditional printing equipment to transfer ink by pressure. Inkjet technology provides conditions for three-dimensional object printing because it does not contact the substrate and does not require printing pressure. [0003] "Research on Inkjet Mechanism of 3D Inkjet Robot" (Chen Xinwei, Master Thesis of Nankai University, 2009) developed a 3D inkjet robot, which sprays a 3D map model with a certain height change. Because the robot moves in a straight line, it is difficult to achieve inkjet printing on ...

AI Technical Summary

Problems solved by technology

For the above two types of 3D printers, during the printing process, the linear movement of the nozzle causes the ink droplets to be disturbed by factors such as inertial force and impact during the formation process, resulting in random changes in ink droplets and deviations in positioning, not only the printing effect is not good but also 3D object printing speed is low

In addition, in conventional inkjet printing equipment, the nozzle size is at the centimeter level, and it is difficult to print complex curved surfaces with large aspect ratio, millimeter-level small size, variable curvature, concave surface, etc.; The efficiency of large-area curved surface inkjet printing is too low to be practically applied

Therefore, the existing 3D object inkjet printing equipment is difficult to print complex curved 3D objects, and the printing quality is not high and the printing speed is low

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