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(11) | EP 1 516 946 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Sample warper with idle running preventing mechanism of yarn guide |
| (57) There is provided a sample warper (200) with an idle running preventing mechanism
of a yarn guide (6a-6h), wherein yarns (22) are automatically exchanged and successively
wound on the warper drum (208) according to a preset yarn order by passing the yarns
between the yarn guides (6a-6h) and the yarn selection guides (27a-27j), and wherein,
when a first yarn being wound on the warper drum by a first yarn guide is exchanged
to a second yarn, after a yarn removing operation for removing the first yarn from
the first yarn guide is finished, a yarn feeding operation for feeding the second
yarn to a second yarn guide is performed while the empty first yarn guide makes one
rotation. The sample warper can achieve such an advantage that an idle running time
of a yarn guide when exchanging yarns can be reduced considerably and a speed of yarn
exchanging is improved remarkably.
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