| 摘要 |
There is disclosed a former head (1) with rotating drums (9, 10), in which is mounted needle rollers (11, 12), and which is used in dry forming of fibrous web or tissue (4). The drums (9, 10) are composed of at least two semi-cylindrical segments (9A, 9B; 10A, 10B) readily separating in axial direction, and which are mounted on a bearing ring (14) protruding into the drums (9, 10). The drum segments are held together on the bearing ring (14) by means of a segmented clamping ring (18). By such design, it is possible to perform rapid mounting and dismounting of the drum without need for dismounting the needle rollers (11, 12). |
