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US 4,834,145 AGranted
Apparatus and method for cutting an inserted weft thread
AssigneePicanol N.V.
InventorsDirk Lewyllie, Jose Vangheluwe
Life of this patent
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AssigneePicanol N.V.
InventorsDirk Lewyllie, Jose Vangheluwe
Estimating the term…
A method and apparatus for cutting a weft thread are disclosed in which a completely separate, independent drive system for the weft thread cutter and clamping device enables the cutting time to be optimized without affecting the main drive system for the loom. By using its own, independent drive system, which is completely independent of the main loom drive, the cutter can be actuated at any time during the loom cycle. The cutter and clamp drive system is controlled by a computer, which may be programmed to determine the optimum cutting time as a function of the weaving parameters and the weft thread data. A device may be provided to detect an improperly inserted weft thread. Once this has been detected, the computer may deactivate the cutting device to prevent the separation of the improperly inserted weft thread from the weft thread supply.
In a loom having a heddle to alternately raise and lower warp threads, weft thread insertion means to insert a weft thread between the warp threads, a reed to beat-up the inserted weft threads and first, main loom drive means, the improved inserted weft thread cutting mechanism comprising:
In a loom having a heddle to alternately raise and lower warp threads, weft thread insertion means to insert a weft thread between the warp threads, a reed to beat-up the inserted weft thread and first, main loom drive means, the improved method of cutting the inserted weft thread comprising the steps of:
Dependencies are inferred from the claim text.