| 摘要 |
<p>A method of controlling a gap between knives of a cutting machine for organic plant materials, particularly tobacco materials, comprising a cutterhead with a drum of cutting knives and a transporting-compacting assembly with a lower knife, wherein signals from electric sensors are used for positioning the knives by means of servomechanisms, the signals being processed in a central control unit of the cutting machine, according to the invention is characterised in that a first (Cl) determines the gap (a) between the end face of the sensor (Cl) and the blade of a cutting knife (3) in the radial direction of the cutterhead drum (2), a second sensor (C2) determines the gap (b) between the frame of the cutterhead (1) and the frame of the transporting-compacting assembly (4), and a third sensor (C3) determines the gap (d) between the end face of the sensor (C3) and the edge of the lower knife (7), and a change Deltac of the gap (c) between the knives of the cutting machine is determined according to the formula Deltac = Deltaa + Deltab + Deltad, where Deltaa is a change of the distance between the end face of the first sensor (Cl) and the blade of the cutting knife (3), Deltab is a change of the distance of the frame of the cutterhead (1) from the frame of the transporting-compacting assembly (4), and Ad is a loss of the lower knife (7) due to wearing, assuming that the initial gaps (a, b, c, and d) between the subassemblies of the cutting machine are known.</p> |
