| 摘要 |
<p>The invention relates to a rotating cutting device (1) for continuously cutting one or more extruded strands which continuously emerge from one or more holes (5) in the end face (4) of an extrusion nozzle (3) to form pellets. The cutting device comprises a head (2) which can be coupled to a drive shaft so as to be rotatable about an axial head center axis (6); and a plurality of knife assemblies (7). Each knife assembly comprises a curved bearing arm(8). The first bearing arm end (9) is attached to the head so as to be pivotable about a pivot axis (11), which coincides with the longitudinal axis of said bearing arm at said first bearing arm end. The second bearing arm end (10) is provided with a knife holder (12). Each knife assembly furthermore comprises a tensioning mechanism (15) which is designed to tension the bearing arm of said knife assembly, independently from the arms of the other knife assemblies, in order to pivot said knife assembly about the pivot axis of the bearing arm. The tensioning mechanism of each knife assembly comprises an adjusting element (16) by means of which the tensioning force of the spring (14) of said knife assembly is adjustable independently from the other knife assemblies.</p> |
