Title: Ink roller pressure adjusting device Patent application number Abstract: The utility model relates to a printing machine, in particular to an ink roller pressure adjusting device of an offset printing machine. The ink roller pressure adjusting device includes an eccentric shaft, a connecting rod, an ink roller glue arm, an adjusting shaft, a first universal joint, a universal joint shaft, a second universal joint, a worm gear pair, and the like. The eccentric shaft drives the connecting rod, and the connecting rod drives the ink roller rubber frame arm to move. The adjusting shaft is placed in the wall plate and is connected with the first universal joint. The universal joint shaft connects the first universal joint and the first The universal joint and the second universal joint connect the worm. One end of the shaft of the eccentric shaft is placed in the hole of the gear shaft, and the worm gear accessory drives the eccentric shaft to rotate. The utility model has the advantages of compact structure, good self-locking property, convenient and reliable adjusting pressure, and creates conditions for the appearance design of the printing unit.