The invention relates to the technical field of production equipment, and particularly discloses a synchronous precise rolling device of a rolled slitter edge of a
metal plate. The synchronous precise rolling device comprises a rack, a power
plant, a driving device, a rolling device, a position detection device and a steering roller, wherein the power
plant, the rolling device and the driving device are respectively installed on the rack; the position detection device is composed of a position detection head and a swinging bracket; the position detection head is composed of a precision
potentiometer, a driving gear, a rotating shaft and a bearing seat of the rotating shaft, the rotating shaft and the bearing seat of the rotating shaft are fixed together with the rack through seat plates, the position detection head is connected with the swinging bracket through the rotating shaft, a
pulley is installed on the end of the swinging bracket, the rolled slitter edge enters the rolling device through a
pulley groove and the steering roller, so as to be rolled, and the rolling device is driven to rotate by the driving device. When the slitter edge
rolling speed of the device changes, a motor is regulated by the device according to an output
signal of the precision
potentiometer, so as to change the slitter edge speed to adapt to the whole line speed, and the condition that the whole line is
shut down due to breaking or accumulation of the slitter edge is avoided.