| 摘要 |
A web guide 7 located upstream of a funnel in a textile machine such as a draw frame is adjustable in respect of the engagement between its walls and the fibre web. The walls 7C,D may pivot about their inner or (Fig 6) outer ends. They may be of spring material (Fig 7) and adjusted between a concave and a convex shape. They may be adjustable to alter the position of contour elements (44, Fig 8). They may be subdivided into zones of different frictional resistance and may be displaceable to bring the different zones into play (Fig 9) or the zones may be exchangeable. An optical image processing system 15,16 may be associated with the guide and may control the adjustment of the walls as well as the rollers of the draw frame. |
