Ink supply device of printing machine

The utility model discloses an ink supply device of a printing machine, which belongs to the technical field of printing processing and comprises an ink fountain and an ink roller rotationally arranged on the ink fountain, the ink fountain is fixedly connected with an ink scraping blade contacted with the ink roller through a mounting seat, and a collecting cover is fixedly mounted on the mounting seat and positioned on one side, far away from the ink roller, of the mounting seat. The collecting cover comprises a supporting ring and a filter screen, and the supporting ring and the filter screen are fixedly connected. According to the ink supply device of the printing machine, the surface of the ink roller can be cleaned, the ink roller can make contact with ink not stained with impurities again, the probability that the ink roller is abraded or scratched due to the impurities is reduced, and the service life of the ink roller is prolonged. 本实用新型公开印刷机的供墨装置，属于印刷加工技术领域，包括墨斗以及转动在墨斗上的墨辊，墨斗利用安装座固定连接有与墨辊接触的刮墨刀，安装座固定