Counterweight lifting roller type screen cloth tension control device

The utility model relates to a screen cloth tension control device, in particular to a counterweight lifting roller type screen cloth tension control device which comprises a machine frame, a front section motor, a rear section motor, an angular position device, a pulley counterweight assembly, a swing rod and a lifting roller. The front-section motor, the rear-section motor, the angular position device and the pulley counterweight assembly are all arranged on the rack; the angular position device is respectively connected with the front-section motor and the rear-section motor; the swing rod is hinged to the machine frame and the raising roller and is in chain transmission connection with the angular position device. And the raising roller is hinged with the pulley counterweight assembly and is used for pressing and covering the screen cloth. The counter weight lifting roller type screen cloth tension control device has the advantages of being accurate in tension control, small tension control can be achieve