With the present invention shaping roll position adjustment is easy and the invention makes it possible to form multiple detailed three dimensional shapes in the sheet material rapidly and precisely. The circumferential surfaces of a pair of shaping rolls (3 4) that are mutually parallel are provided with recessed and protruding shapes (6) that mesh with each other at the face to face position. The rotation shafts (24) of the shaping rolls (3 4) are linked and connected to a rotation drive means (10) via eccentric joints (25). The inside of the main roll body (4a) of the downstream shaping roll (4) is provided with air passages (28) that extend in the direction of the roll shaft center (27) and air holes that connect the air passages (28) with the circumferential surface of the roll. Communication members (30) are disposed adjacent to the ends of the main roll body (4a). An air intake port that can communicate with the air passages (28) is provided in a first established region in the circumferential direction of the communication members (30) and an air supply port that can communicate with the air passages (28) is provided in a second established region. The air intake port is communicably connected to an air intake means and the air supply port is communicably connected to an air supply means.
