| 摘要 |
1532838 Paper-making machines VALMET OY 16 Sept 1976 [16 Sept 1975] 38349/76 Heading D2A A paper-making machine has a headbox 10 feeding stock to a single-wire part 12a of a forming section which is followed by a twinwire part made up of wires 11, 12 between forming rolls 13, 14. The web W is then transferred on part 11a of the wire 11 to a press nip N, between rolls 21, 22 and to a second nip N 2 between roll 22 and a third roll. As shown the third roll is a smooth roll 23 from which the web is taken through third and preferably fourth nips to a multi-cylinder dryer, but in another embodiment (Fig. 1, not shown) the third roll may be a Yankee cylinder. Rolls 13, 14, 16b, 22, 25 may be suction rolls. The size and direction of the lip slice of the headbox 10 can be adjusted by means 70. The lower press roll 21 can be adjusted by movement of frame 60 about a pivot 61. |
