Tension pressing plate device and using method thereof

The invention relates to a tension plate pressing device and a using method thereof, and belongs to the technical field of plate shearing and splitting machining. The technical problems that an existing compressed air bag is prone to being damaged, the tension of an alloy coiled material is not stable, and the product quality is not stable are solved. A lower pressing plate and an upper pressing plate are horizontally installed on a frame, the upper pressing plate is arranged above the lower pressing plate, bearing seats are fixedly arranged at the left end and the right end of the upper pressing plate, synchronous gear shafts are installed on the bearing seats, synchronous gears are fixedly installed at the left end and the right end of the synchronous gear shafts, and synchronous racks are vertically and fixedly arranged on stand columns of the frame. The synchronous gear is meshed with the synchronous rack, the upper cover is fixedly installed on the upper portion of the frame, the oil cylinder is vertical