| 摘要 |
An apparatus for the production of a fibre nonwoven consists of a plurality of toothed card drums 1, 2 which rotate in the same direction and which follow one another in the direction of run-through of the pre-nonwoven. The card drum 2 in each case located downstream in the direction of run-through of the pre-nonwoven forms a worker roller for the upstream card drum 1. The fibres flying off from the card drums 1, 2 in throw-off ducts 6, 7 are deposited on a suction-controlled catching surface 3. In order to ensure that the fibres are deposited on the catching surface 3 in a stress-free and random manner, without a preferential direction, even in the region of the throw-off duct 7 of the card drum 2 which is last in the direction of run-through, this last card drum 2 is assigned a toothed roller 9 rotating in the opposite direction and having teeth inclined rearwards with respect to the direction of rotation, the associated throw-off duct 7 extending into the gusset region 10 between the toothed roller 9 and the card drum 2. |
