| 摘要 |
<p>Some modern staple fibre cutting machines have correspondingly a rotationally symmetrical, rotatably mounted knife carrier (9) with a drive and with radial knives (18). A likewise rotationally symmetrical presser element (13) is arranged opposite the knife blades. In operation it presses a lap formed from the fibre tow to be cut against the knife blades, so that the tow is cut. In this process, the presser element (13) rotates and rolls on the lap. The drive torque required for this is transmitted by friction from the lap to the presser element (13). A corresponding reaction force acts between the lap and the knife blades, and produces a bending moment in the knives. In particular, the bending moment can become so large when cutting high-strength material that the knives (18) break. …<??>According to the invention, synchronisation between the knife carrier (9) and presser element (13) is enforced by a coupling consisting of two synchronising articulations (29,34) and a connecting shaft (31), so that the drive power is evenly divided between the knife carrier (9) and the presser element (13). …<??>The staple fibre cutting fibre machine is particularly suitable for cutting fibre tows of high-strength synthetic material. …<IMAGE>… </p> |
