| 摘要 |
A cutting- and creasing-wheel assembly according to the invention comprises a cutting tool, such as a circular disc ( 1 ) having a continuous or a serrated cutting edge ( 2 ). The disc is rotatable and supported between a pair of rotatable creasing-wheel halves ( 3 and 4 ), the creasing-wheel halves being of equal radial dimension. The disc is controllable for movement between a non-operative position wherein said cutting edge is withdrawn radially inside the outer peripheries ( 5 ) of the creasing-wheel halves, and an operative position wherein the cutting edge ( 2 ) is projecting radially outside said peripheries ( 5 ). The method of slitting a corrugated or otherwise compressible material involves the provision and control of a cutting tool, preferably a circular disc having a continuous or serrated cutting edge. The disc is arranged to be rotatable and movably supported between a pair of rotatable creasing-wheel halves of equal radial dimension in a cutting- and creasing wheel assembly. Upon slitting, the disc is controlled for projecting said edge radially outside the peripheries of said creasing-wheel halves to cut a slit through the material while the material is moved relative to the cutting- and creasing wheel assembly, or vice versa.
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