Ink-jet printing device and printing method thereof

Abstract

The invention discloses an ink-jet printing device and a printing method thereof. The printing device comprises a printing unit, a material feeding unit, a control unit and a curing device, wherein the printing unit comprises a printing bracket and a printing trolley; the printing trolley can perform stepping motion in a first axis direction along the printing bracket; the material feeding unit is arranged below the printing unit and used for mounting a print object and driving the print object to rotate around a second axis direction; the control unit is used for controlling the printing trolley to move in the first axis direction, controlling a sprayer on the printing trolley to jet image texts, and controlling the print object to rotate around the second axis direction; the curing device is used for irradiating the printing area of the print object, so as to cure the ink droplets on the print object; the ink-jet printing device is characterized in that the curing device comprises at least two bulbs; the bulbs can be separately controlled to be switched on or off; the curing irradiation intensity of the bulbs can be regulated. According to the ink-jet printing device and the printing method thereof disclosed by the invention, the curing irradiation intensity can be adjusted according to the requirement; the situation that unnecessary ultraviolet light is exposed to the surface of the sprayer nozzle by the curing device can be effectively avoided, and further the nozzle blockage can be avoided.

Description

technical field [0001] The invention relates to an inkjet printing device for printing with UV ink, in particular to an inkjet printing device and a printing method thereof with adjustable irradiation intensity of a curing device for curing UV ink. Background technique [0002] Inkjet printing devices are widely used in all walks of life, mainly by ejecting ink droplets from a nozzle and landing on the corresponding position of the medium to be printed to form a desired image or text printing. Among the three commonly used inks - solvent-based ink, water-based ink and UV ink, UV ink has been widely used due to its fast curing speed, wide range of applicable media, and environmental protection. After printing with UV ink, a curing device is required to cooperate with it to cure the ejected graphics. Due to the different structural design of the printing device, the installation method and installation position of the curing device are also different. One installation method i...

AI Technical Summary

Problems solved by technology

In this installation method, the curing device 6 may have the following two disadvantages during the irradiation process: 1. While the curing device 6 is curing the object 7 to be printed, it may radiate upward due to the change in diameter or length of the object 7 to be printed. The print head of the print head will cause the ink on the nozzle surface of the print head to solidify and dry, which will cause the nozzle of the print head to be clogged

2. During the stepping movement of the printing carriage 2 along the crossbeam 1 to eject images and texts, the images on the object 7 to be printed are gradually completed step by step. When the curing device 6 is in the curing stage, the images and texts are only ejected to the initial position. There are no ink droplets in other positions of the object to be printed, so it is not necessary to perform full irradiation. Similarly, during the entire printing process, the width and intensity of the irradiation of the curing device 6 must be consistent with the width of the graphic just ejected from the nozzle. If the curing device 6 6 The strongest irradiation intensity has been used, which not only causes a waste of resources, but also brings hidden dangers to the dryness and blockage of the nozzles of the nozzles

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