Height-adjustable feeding platform for press machine

The height-adjustable feeding platform comprises a lower driving seat and an upper driving seat which are opposite in position, two sets of driving motors are assembled on the inner side of the lower driving seat and the inner side of the upper driving seat, threaded rods are fixedly arranged on output shafts of the driving motors in the lower driving seat in a sleeved mode, and the threaded rods are connected with the lower driving seat in a sleeved mode. An output shaft of a driving motor in the upper driving seat is fixedly sleeved with a supporting rod, and the threaded rod and the supporting rod are fixedly sleeved with fluted discs which are meshed with each other; the outer wall of the threaded rod is sleeved with a feeding frame in a threaded mode, the feeding frame is formed by welding a main frame and a transverse plate, and the rear side wall of the main frame is fixedly provided with a threaded sleeve which is in threaded sleeving with the threaded rod; according to the height-adjustable feeding p