Rubber roll clutch mechanism with following of sheet-fed press

The utility model discloses a rubber roll clutch mechanism with the following of a sheet-fed press. The rubber roll clutch mechanism comprises a drum, wherein a roller is fixed on a swing frame, a hole which is sleeved with a fulcrum shaft is punched at one end of the swing frame, a pressure spring is sleeved on the fulcrum shaft and is fixed to the fulcrum shaft through a nut, a rubber roll is installed on a bracket and is concentric with the roller, a cam is sleeved on the shaft diameter of the drum and is concentric with the drum, the upper surface of the cam is contacted with the roller, a piston rod on a cylinder supports against a swing arm when extending, a connecting rod is connected to the swing arm, a B point functions as a support center of the drum; A, C and D respectively function as the support centers of the swing frame, the swing arm and the cylinder; the swing frame, the roller and the cam form a like four-connecting rod mechanism, and the swing arm, the connecting rod and the cam form a like