| 摘要 |
A vacuum cleaning system is disclosed for cleaning the automatic insertion area of a loom. In a typical weaving operation, there are a number of successive rows of individual looms (11). In accordance with the present invention, there is a main vacuum line (28) routed transverse to the rows of looms and secondary vacuum lines (26) extending along the rows of looms. Electropneumatic valves (29) are provided to selectively connect and disconnect the individual secondary lines so that an intermittent vacuum may be placed on the looms of successive rows in a cyclic manner. The vacuum cleaning system includes a vacuum manifold (46) connected by a branch line (40) to a secondary vacuum line (26). A balancing valve (42) is included in each branch line (40) to balance the vacuum at each loom so that generally equal vacuum is applied to the looms along the row. A number of individual, directional lines (A, 72, 74, 76, ) are connected to manifold (46). The directional loom vacuum lines are flexible and may be moved to a desired location with the free ends of the directional lines unsupported. In this manner the directional lines may be flexed to and away from the vacuum location while rigidly set at the location. A primary loom vacuum line (80) is directed to a mechanical weft inserting device which inserts the weft thread into a projectile (71). The flexible, directional lines (72, 74, 76) are positioned at various thread guides and thread tensioning guides in the automatic weft insertion area to vacuum the loose fly created by the friction of the weft thread passing through the guides.
|
