Automatic screw rod feeding device

The invention provides an automatic screw rod feeding device which comprises a machine frame with a worktable, a quick-replaced material box, a feeding part and a material pushing part. The quick-replaced material box is arranged on the worktable of the machine frame and used for carrying screw rods to be conveyed; the feeding part is disposed on the worktable of the machine frame, is in butt joint with the quick-replaced material body and comprises a temporary material storing area and a sliding table of a sliding area, a first blocking element is arranged between the temporary material storing area and the sliding area in a convex mode, a material pushing through groove is formed in the tail end of the temporary material storing area and located in the first blocking element position, a discharging opening is formed in the tail end of the sliding area, and a second blocking element is disposed on the discharging opening; the material pushing part comprises a first-stage wedge angle push plate and a second-stage wedge angle push plate, the two push plates can be driven by a drive mechanism to move vertically, the first-stage wedge angle push plate is vertically arranged on the butt joint portion of the material box and the sliding table, and the second-stage wedge angle push plate is vertically inserted into the material pushing through groove. The automatic screw rod feeding device overcomes the defects that in the prior art, directional feeding of screw rods with special head characteristics is difficult, conveying efficiency is low, and the successful rate of directional feeding is low.