Bundled reinforcing steel bar automatic spreading device

An automatic material spreading device for bundled reinforcing steel bars comprises a bundled reinforcing steel bar arranging and conveying device and a stepping conveying and material spreading device, the bundled reinforcing steel bar conveying device comprises a chain bed, at least two lifting type vibration tables are installed between chains of the chain bed, the stepping conveying and material spreading device comprises a rack, a driving shaft is rotatably installed on the portion, close to the lower portion, of the rack, and the driving shaft is connected with the lifting type vibration tables. The driving shaft is connected with a driving motor, a plurality of cams are fixedly connected to the driving shaft at intervals, a transfer frame is slidably installed on the rack through a sliding rail and a sliding block, the sliding block inclines backwards from bottom to top, a plurality of rotating wheels are rotatably installed on the lower portion of the transfer frame, each rotating wheel corresponds to