| 摘要 |
A press apparatus (10) is disclosed for a paper making machine for pressing a web (12). The apparatus (10) includes a frame (14) and an extended nip module (16) which is removably connected to the frame (14). A backing roll (18) is disposed beneath the module (16) and is removably connected to the frame (14). The backing roll (18) cooperates with the module (16) for defining therebetween an elongate press nip (20) for the passage therethrough of the web (12). A felt (22) extends through the press nip (20) for receiving water ejected from the web (12) during passage of the web (12) and felt (22) therethrough. A looped bearing blanket (24) extends around the module (16), the arrangement being such that the blanket (24) is disposed between the module (16) and the felt (22) during passage of the blanket (24) through the press nip (20). A positioning device (26) is disposed above the module (16), and selectively connected to the module (16) adjacent to a first location (28). The positioning device (26), when connected to the module (16), permits movement of the module (16) away from the backing roll (18). A link device (30) selectively extends between the frame (14) and a second location (32) adjacent to the module. The first and second locations (28, 32) are spaced relative to each other. The arrangement is such that when the positioning device (26) is connected to the module (16) and in a first disposition thereof, and the link device (30) extends between the frame (14) and the second location (32), the module (16) is urged towards the backing roll (18) for defining therebetween the press nip (20). When the positioning means (26) is in the second disposition thereof, and the link device (30) extends between the frame (14) and the second location (32), the module (16) is moved away from the backing roll (18) for facilitating removal and installation of the felt (22). When the link device (30) is selectively disconnected from the second location (32) and the positioning device (26) is in a third disposition thereof, the module (16) is suspended by the positioning device (26) for facilitating removal and installation of the bearing blanket (24). When the positioning device (26) is selectively disconnected from the first location (28), removal and installation of the module (16) is facilitated. When the positioning device (26) is in the second disposition thereof, and the link device (30) extends between the frame (14) and the second location (32) with the felt (22) removed, removal and installation of the backing roll (18) is facilitated. |
