Round steel bending radian control device

The utility model discloses a round steel bending radian control device, which relates to the technical field of round steel processing, and comprises a supporting mechanism, the supporting mechanism comprises a box type main frame and a supporting cross rod arranged on the lower surface in the box type main frame, and the surface of one side of the supporting cross rod is fixedly connected with two angle steel upright posts; the restraining mechanism comprises a square steel block arranged on the upper surface of the box type main frame, the lower surface of the square steel block is fixedly connected with the upper surface of the angle steel stand column, the upper surface of the square steel block is fixedly connected with an L-shaped leveling plate, and a rolling assembly is arranged above the square steel block; and the bending mechanism comprises two steel sleeves arranged on the upper surface of the box-shaped main frame, second round steel is rotationally connected into the steel sleeves, and scale ma