Method of winding and changing warp beams of weaving looms
AssigneePicanol N.V.
InventorWaelkens Joos
Life of this patent
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Abstract
A process for coiling warp beams of looms involves winding new warp threads on warp beams with free ends of predetermined length double wound on the beams at the beginning of the winding process. A warp beam with a securing system for warp threads arranged to leave free ends of the warp threads is described. For changing a warp beam, the free ends of the double coiled warp threads are released from the warp beam before the beam is completely unwound and the free ends are tied to the leading ends of warp threads on the next succeeding warp beam without stopping the weaving process.
Claims3
A method of changing warp beams of a weaving loom comprising:
- supplying warp threads to be wound on a warp beam from a source and securing the threads to a warp beam at a predetermined distance from their free ends so as to leave free lengths of warp threads extending from the warp beam;
- wrapping the warp threads from the source and the free ends of the warp threads around the warp beam in double wound fashion so the thread free ends extend back toward the source relative to the coiling direction;
- continuing the winding of the threads from the thread source until the beam is fully wound;
- carrying out a weaving process including unwinding warp threads from the warp beam until the double wound free ends of the threads are released from the beam;
- preparing a second warp beam to be used in the weaving process by winding warp threads thereon, said second beam having free ends of warp threads to be introduced into the loom, and locating the second beam sufficiently proximate the first beam so that the free ends of threads from both warp beams can be tied together;
- tying together the free ends of the threads on both beams;
- releasing the warp threads from the first beam and removing the first beam from the loom.
Dependencies are inferred from the claim text.