Continuous negative bending equipment for rolled metal composite strips

The utility model provides continuous negative bending equipment for rolled metal composite strips. The continuous negative bending equipment for the rolled metal composite strips comprises a rack, roller sets arranged on the rack and formed by convex-side rollers and concave-side rollers, and a pinch roll pair, wherein the roller sets are arranged to be a first roller set, a second roller set and a third roller set in a direction from an inlet to an outlet sequentially; the quantity of the convex-side rollers is sequentially decreased progressively. The convex side of each rolled metal composite strip is opposite to the convex side of a negative bending roller and is fed into the inlet of the continuous negative bending equipment in the length direction, and each metal composite strip is applied with continuous pressing force through the first roller set, the second roller set and the third roller set sequentially and is output by the pinch roll, so that the negative bending of the rolled metal composite strips is completed. According to the continuous negative bending equipment for the rolled metal composite strips, a metal layer which is located in the external diameter direction and has large thermal expansion coefficient reaches an elastic-plastic deformation area and is slightly and permanently deformed and stretched, so that the micro lengths of two kinds of metals are basically the same, the defect of 'convex backs' of the rolled metal composite strips is overcome, the negative bent strips can meet the requirement of straightness after passing through the common panel flattening equipment.