Novel roller set for square tube cold roll forming

The utility model relates to the technical field of cold-bending steel pipe manufacturing, in particular to a novel roller set for square pipe cold-bending forming, which is composed of twelve roller sets sequentially arranged on the first pass to the twelfth pass, and two driven side rollers are additionally arranged on the basis of the original eighth roller set. The roller surface of the lower roller is changed into a horizontal plane-shaped straight roller surface from a groove surface with a wide upper part and a narrow lower part; and meanwhile, the ninth roller group, the tenth roller group and the eleventh roller group are structurally improved. According to the utility model, the major quality problem that the surface of a product is scratched by a roller in the cold bending deformation process of the product is solved, and the corresponding arc angle can be quickly reduced while the deformation corner of two edges of the product in the ninth-eleventh pass processing can be controlled, so that the pr