| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrugation die for corrugated cardboard production.SOLUTION: The corrugation die for corrugated cardboard production has a rotation shaft and a waveform (6). The waveform (6) includes waveform apexes (17), waveform troughs (18) and waveform side faces (19). The corrugation die (2) includes an air exhaust device. The air exhaust device includes at least one air collecting groove (20) which opens outwardly in a radial direction and extends at least partially around the rotation shaft (3), crosses at least one of the waveform apexes (17), and being defined by the first and second side walls (21, 22) facing each other. The air exhaust device also includes at least one air connection channel (24) extending from at least one of the side walls (21,22) of the at least one air collecting groove (20) and at least one air suction channel (26) which is floating-connected to the at least one air connection channel (24) and may receive negative pressure. |
