| 摘要 |
<p>PCT No. PCT/DK93/00166 Sec. 371 Date Dec. 16, 1994 Sec. 102(e) Date Dec. 16, 1994 PCT Filed May 17, 1993 PCT Pub. No. WO93/23215 PCT Pub. Date Nov. 25, 1993A machine simultaneously cuts a paper web into sheets and adjacent strips. A substantially stationary knife having a blade extending substantially transverse to the direction of movement of the web cooperates with knives on a knife-supporting cylinder. The cylinder is mounted for powered rotation about an axis, and has a substantially circular peripheral surface and at least one chord face formed in the peripheral surface. First and second movable blades are mounted to the chord face. The cylinder is solid and the movable knives enhance the bending resistance of the cylinder. The knife edges of the movable knives are circumferentially spaced from each other in the direction of rotation of the cylinder about its axis. A particular channel is provided connecting a cut web-strip-retaining groove between the movable knives to a source of vacuum, or compressed or ambient air, the cut web strip-retaining groove connected to the source of vacuum when the groove is adjacent the stationary knife, and to the source of compressed or ambient air when remote from the stationary knife (e.g. in alignment with a suction funnel).</p> |
