| 摘要 |
<p>The invention relates to a water jet cutting device for cutting an advancing web (1) of paper, cardboard, tissue, or another fibrous material in a machin e used for producing and/or finishing said web. The inventive water jet cuttin g device comprises at least two water jet nozzles (4, 5) that are disposed approximately behind each other in the direction of advancement (6) of the w eb and are directed onto the fiber web (1), the fiber web (1) resting on a rotating roller (3) or a continuously revolving belt (2) during the cutting process. The aim of the invention is to improve the quality of the cut while protecting the surface which supports the fiber web (1). Said aim is achieve d by the fact that at least two water jet nozzles (4, 5) have different nozzle diameters and/or are placed at different distances from the fiber web (1) and/or are differently inclined relative to the surface of the fiber web (1) .</p> |
