| 摘要 |
<p>The present invention relates to a device for retaining knife blades for cutting, perforation or other treatment of a running web, perferably a paper web, whereby said web runs between a rotatable knife-retaining cylinder (3) and a counter pressure cylinder (5), whereby the knife blade (2) may be wedged up by means of a wedge device (K) by being brought into the slot (6) by means of the counter pressure cylinder (5). In order to permit effective wedge up of knife blades (2) in exact positions in the slot (6) even it said blades have dimensions which differ from knife blades of a certain defined dimension, the wedge device (K) comprises and/or cooperates with at least one spring means (17) disposed beside said wedge device in the slot (6) and, upon insertion of a knife blade (2) into the slot (6) for wedging up thereof by means of the counter pressure cylinder (5), compressible to a dimension which lies within such an interval that it permits insertion of those knife blades (2) into the slot (6), the dimensions of which differ from said certain, defined dimension and lie within such a certain, defined range of tolerance including said defined dimension, whereby said spring means (17), when compressed to a dimension within said interval, has such a spring force that knife blades (2) having dimensions within said range of tolerance are retained in the slot (6). <IMAGE></p> |
