Automatic deviation corrector for belt of belt conveyer

The utility model relates to a tape automatic alignment tracing device of a tape conveyor; a pair of tracks are arranged at the tail of the tape conveyor; both ends of a roller shaft are provided with carrier rollers; the carrier rollers are arranged on the tracks and can move to and fro or swing left and right on the tracks; both sides of a roller are provided with pistons; piston connecting rods are horizontally connected with the two carrier rollers; the oil cylinders of the two pistons are connected by an oil pipe and then connected with a pressure air tank. When a tape offsets, the system pressure is in unbalance instantaneously under external force; but the system is a constant high-pressure system, so the system immediately automatically adjusts to pull the roller left and right, so that the roller of the tape conveyor can return to the balance position. The tape automatic alignment tracing device has simple structure, is convenient to be installed and repaired, quick, flexible and accurate to be adjusted, can effectively reduce production cost, improve working efficiency and prolong the service life of equipment.