Roller printing machine with automatic ink adding function

The utility model discloses a cylinder printing machine with an automatic ink adding function, which relates to the technical field of cylinder printing machines and comprises a printing machine base, a printing machine body is fixedly mounted on the top surface of the printing machine base, a printing cylinder is fixedly mounted at the bottom of the printing machine body, and an ink coating cylinder positioned above the printing cylinder is fixedly mounted in the middle of an inner cavity of the printing machine body. An ink storage box located at the top of the inner cavity of the printing machine body is fixedly installed at the top end of the inking cylinder. According to the scheme, the ink detection column is matched with the sealing sleeve, the sensors which are distributed side by side at equal intervals are electrically connected with the terminal body through the built-in cable, the multiple sensors are matched with the terminal body to monitor the ink storage amount in the ink storage box in real t