Method for sharpening the blades of a rotary drum and adjusting the fixed counter-cutter cooperating with them, and device for carrying out this method

摘要

The device comprises a rotary cutting drum (1) and a fixed counter-cutter (25) cooperating with the blades (2) of the drum (1), as well as a retractable grinding wheel (21) capable of being moved in rotation so as to sharpen the said blades periodically. …??According to the invention, at least two positioners (7) situated near the free ends of the cutting drum (1) are mounted pivotably about the geometric axis of the latter and are connected to an activating device (9) making it possible, by means of pivoting, to bring the end jaw (8) of each positioner either into line with the grinding wheel (21) or into line with a corresponding stop (32) of the counter-cutter (25), the latter being secured to a fixed support (35) by way of a presser device (34) and a fixing device (33). …IMAGE…