| 摘要 |
<p>A method of preparing a slidable blade mounted on a drum of a tobacco cutter for cutting the fibres of a predetermined length in which the cutting edge of the blade is being bevelled by moving a grinding wheel along the generatrix of the drum, wherein on the bevelled part (7, 7') of the blade (1, 1') grooves (6, 6') are formed by means of a set of stationary grinding wheels (4, 4'), the grooves being substantially perpendicular to the cutting edge of the blade. The blade prepared according to this method comprising the grooves (6, 6') on the bevelled surface (7, 7') arranged substantially in parallel to one another with a triangular or rectangular cross section.</p> |
