Square pile hoop forming system

The utility model provides a square pile hoop forming system which comprises a ribbing device used for conducting preliminary ribbing on a workpiece, a notching device used for notching the workpiece, a connecting device, a flanging device used for conducting flanging machining on the edge of the workpiece and a bending device used for bending the workpiece, and the output end of the ribbing device is connected with the input end of the notching device. The output end of the notching device is connected with the input end of the connecting device, the output end of the connecting device is connected with the input end of the flanging device, and the output end of the flanging device is connected with the input end of the bending device, so that the problems that existing square pile hoop forming equipment is single-machine equipment, much manpower is needed, and the production efficiency is low are solved; the square pile hoop forming machine is reasonable in structure, square pile hoop forming procedures are