Drawing and rolling combined type multi-plate continuous forming method for variable-section plate springs

The invention relates to a drawing and rolling combined type multi-plate continuous forming method for variable-section plate springs. According to the drawing and rolling combined type multi-plate continuous forming method, the manner that one raw material is continuously rolled into multiple variable-section plate springs is adopted, a flat steel product raw material of n times of length is heated and fed into a variable-section rolling machine, a drawing machine clamps the flat steel product raw material and applies tension to the flat steel product raw material at the front end, under the combined action of the tension and the rolling force, variable-section rolling of the n-0.5 plate springs at the back end is completed firstly, and then the remaining 0.5 plate spring is rolled. By the adoption of the drawing and rolling combined type multi-plate continuous forming method for the variable-section plate springs, the production efficiency can be significantly improved, the end cut loss can be reduced, and