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AssigneePicanol N.V.
InventorsDirk Lewyllie, Bernard Vancayzeele, Geert Geerardyn
Estimating the term…
In an apparatus for selecting and feeding wefts to an insertion device of a weaving machine, the feeders are directly connected to eccentric drives which have an excursion corresponding at least to the paths covered by the feeders between their rest and feed positions, and each feeder is associated with a guide and arranged to compensate for transverse displacements of the eccentric drives which deviate from the reciprocating motions of the feeders. The feeders have an excursion corresponding to at least the distance between the rest and feed positions of the feeder, with each feeder together with a drive motor, the eccentric drive, and the guide forming a module to simplify matching of yarn feeders to the requirements of a specific fabric and exchange of units in case of a defect. Advantageously, the modules of neighboring feeders may be mounted in mirror-symmetric manner relative to a common plane in which all of the feeders are mounted. The drive motor is preferably connected to a control unit arranged to control the drive motor to position the feeder at a position intermediate between the rest and the feed positions and selected in such a manner that the weft is deflected as little as possible by the feeder when being inserted.
An apparatus comprising means for selecting and feeding weft yarns to an insertion device of a weaving machine including at least one weft feeder for feeding a weft yarn to the insertion device and means including an individual eccentric drive and an individual drive motor for selectively moving the weft feeder between a rest position and a feed position, wherein the feeder is directly connected to the eccentric drive, wherein an excursion of the eccentric drive corresponds at least to a path of the feeder between its rest and feed positions, and further comprising means for guiding the feeder between the rest and feed positions of the feeder.
An apparatus comprising means for selecting and feeding weft yarns to an insertion device of a weaving machine having means including at least one weft feeder for feeding a weft yarn to the insertion device and means including a drive motor for moving the weft feeder between a rest position and a feed position, the improvement wherein the drive motor is connected to means including a control unit for returning the weft feeder from said position to an intermediate position between the feed position and the rest position while the weft is being guided by the weft feeder during insertion of the weft into the weaving machine.
Dependencies are inferred from the claim text.