Die-cutting machine with flattening function

The die-cutting machine with the flattening function comprises a gold stamping die-cutting device, a paper conveying device and a supporting frame, the supporting frame is located between the gold stamping die-cutting device and the paper conveying device, a mounting frame is arranged on the supporting frame, and a plurality of flattening guide rails are movably arranged on the mounting frame; the moving direction of the flattening guide rail is perpendicular to the conveying direction of paper, a first locking assembly used for limiting movement of the flattening guide rail is arranged between the mounting frame and the flattening guide rail, a mounting block is movably arranged on the flattening guide rail, and the moving direction of the mounting block is parallel to the conveying direction of the paper. A second locking assembly used for limiting movement of the mounting block is arranged between the flattening guide rail and the mounting block, and the mounting block is provided with a flattening roller