| 摘要 |
The device has a frame (4), and tunneling unit (3) stationarily connected with a bracing unit (2), where the frame is movable in a preset direction by the tunneling unit. The bracing unit comprises bracing pressure cylinders (21) and gripper plates (22). A set of rollers (5) arranged on a frame includes cutting rolls (61) and foldable edge cutting rolls (62a, 62b) arranged in its edge region that are offset in axial direction, where the rollers are rotated in a same direction and the edge cutting rolls projecting above the rollers each against the other roller. |
