| 摘要 |
<p>An apparatus for cutting a tail in a web sheet (10) traveling through a nip (21) between the queen roll (12) and king roll (14) of a calender (16) includes a waterjet (30) positioned adjacent the edge of the web (10) upstream from the nip (21) for directing a jet of water towards the web (10) and the queen roll (12). The waterjet (30) cuts a tip or leader and creates a tail (54) that continues to travel with the remainder of the web sheet (10) towards and through the nip (21). The waterjet (30) penetrates the web (10) and splashes against the queen roll (12) such that the wetted portion of the queen roll (12) compresses against the leader of the tail (54) to carry or pull the tail (54) around the queen roll (12). A doctor blade (34) is mounted in engagement with the queen roll (12) in line with the tail (54) to direct the tail (54) away from the queen roll (12) and towards the next section (29) of the papermaking machine. Guide trays (36, 40) positioned downstream of the doctor blade (34) guide the tail (54) to the next section (29) of the papermaking machine. The doctor blade (34) can be mounted stationary against the queen roll (12). <IMAGE></p> |
