Sheeter for web fed printing press

摘要

A sheeter for a web fed printing press having: an infeed section; a first cutting head into which the infeed section feeds the web, the first cutting head for cutting the web transversely comprising a circular knife cylinder and corresponding anvil cylinder having circumferences larger than the repeat length of the press; a sheet transfer section having rollers, which moves the cut web from the first cutting head to a second cutting head; the second cutting head comprising a circular knife cylinder and corresponding anvil cylinder to cut a chip from the cut web, a motor to rotate the first and second cutting heads and sheet transfer section rollers at the same surface speed; and nip rollers to deliver the finished product from the second cutting head to a delivery system. The second cutting head can be rotated with respect to the first cutting head so that the length of the chip can be increased or decreased. Also, the first and second cutting heads can be but a single cutting head composed of two cooperating knife/anvil cylinders.