Ink fountain protection device for four-color printing machine

The utility model provides an ink fountain protection device for a four-color printing machine, which relates to the field of four-color printing machines and comprises an ink fountain protection device body, a groove is arranged on the inner bottom wall of the ink fountain protection device body, a supporting block is arranged on the inner wall of the groove, an ink fountain body is arranged at the top of the supporting block, and the ink fountain protection device body is arranged on the ink fountain body. A rotating roller is arranged in the ink fountain protection device body, and an ink fountain roller is arranged on the outer wall of the rotating roller; the positioning bolts are arranged, the protection plate is fixed in the limiting box, the two baffles are arranged, the magnets connected to the outer side attract the corresponding magnets, and therefore the stability of the baffles is improved, the fastening bolts are arranged, the baffles are fixed in the protection plate, the ink fountain is protec