| 摘要 |
PROBLEM TO BE SOLVED: To provide a pattern control yarn feeder having individually-driven yarn feeding rolls supporting at least two yarn ends in a multi-needle tufting machine. SOLUTION: The yarn feeder has yarn feeding rolls each directly driven by a servomotor and is attachable to an arch-like mounting arm attached with about twenty or less yarn feeding rolls each attached a servomotor. Plural mounting arms are extended across the tufting machine. Each yarn feeding roll is driven according to a speed settled by its corresponding servomotor and each servomotor can be individually driven. As many yarn ends are supported on one yarn feeding roll, so torque can be increased and, thereby, a yarn driver pattern attachment economically keeping many merits of a single end pattern attachment is provided. COPYRIGHT: (C)2004,JPO
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