Chain type dragging bidirectional offset adjustment machine

The utility model relates to a chain type traction double-direction adjusting deviation device, in particularly to a tape anti-running deviation mechanism used for transporting a tape machine. The center of a roller supporting frame is fixedly connected with a central supporting shaft. A central bearing, a left bearing and a right bearing are respectively arranged on an engine frame. The central supporting shaft, a left stop arm and a right stop arm are respectively supported on the engine frame through the central bearing, the left and the right bearings. A central belt wheel, a left belt wheel and a right belt wheel, which are horizontally arranged in the engine frame. Sealing conveyance belts are arranged on the left and the right belt wheels. The middle part of the conveyance belt is arranged with a section of diverting belt. The two ends of the diverting belt are respectively connected with the conveyance belt. The central belt wheel is arranged between the diverting belt and the conveyance belt. The low