Thick-wall open caisson rolling plate forming mechanism

The utility model belongs to the technical field of coiled plate forming equipment, and relates to a thick-wall open caisson coiled plate forming mechanism. The extrusion device comprises a base, two fixing plates are fixedly connected to the side wall of the upper side of the base, two extrusion rollers are rotationally installed between the two fixing plates, a motor is fixedly connected to the fixing plate located on the right side, an output shaft of the motor is connected with the extrusion rollers, rotating rollers are fixedly connected to the two fixing plates, and the two fixing plates are fixedly connected with the extrusion rollers. The side wall of the upper side of the base is fixedly connected with a bearing mechanism. The bearing mechanism comprises a plurality of internal thread cylinders fixedly connected to the upper side of the base, adjusting screw rods are sleeved with the internal thread cylinders in a threaded mode, and the upper ends of the adjusting screw rods are rotationally connecte