Rolling device for labels

The utility model provides a rolling device for labels. The rolling device comprises a base, the upper end of the base is hinged to one end of a rotation arm through a connecting piece, the other end of the rotation arm is hinged to a piston rod of an air cylinder through a connecting piece, a rolling device body is installed on the rotation arm and comprises a motor and a fixing base fixed to the rotation arm, the motor is fixed to one side of the fixing base, a base plate with a through hole is fixed to the other side of the fixing base, a rotating shaft of the motor penetrates through the base plate with the through hole, the rotating shaft penetrating through the base plate is sleeved with a rolling roller, a friction block installed on the rotating shaft in a sleeved mode is arranged between the base plate and the rolling roller, and an adjusting nut is installed on the part at the end, far away from the friction block, of the rotating shaft. By means of the rolling device, the air cylinder is controlled