Quilting method and apparatus

D - Textiles – Paper – 05 – B

Patent

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D05B 19/12 (2006.01) D05B 19/14 (2006.01) D05B 69/14 (2006.01) D05B 69/28 (2006.01) D05B 11/00 (2006.01)

Patent

CA 2515406

A method for starting or stopping each of at least two separately controllable roll-sets (22,26,34,56) used for processing a yarn (Y) in a stretch-break process, each roll-set comprising at least two rolls, the method is characterized by the step of each roll-set, changing the speed of each roll from an initial condition to a steady state condition in accordance with a predetermined sequence and in coordination with a change in speed of at least one of the other rolls, such that simultaneous complete breakage of a yarn (Y) being processed in a stretch-break process is minimized.

L'invention concerne un dispositif de piquage permettant à un utilisateur de déplacer librement un empilement de couches de tissu sur un lit plan par rapport à une tête à coudre pouvant être actionnée. Le dispositif comprend un détecteur de mouvement qui détecte les mouvements de l'empilement et commande l'actionnement de la tête à coudre. Par conséquent, le dispositif permet de synchroniser les points formés par la tête avec le déplacement manuel de l'empilement de matière à piquer. L'utilisateur peut ainsi déplacer librement l'empilement sur une grande gamme de vitesses, mettre l'empilement en mouvement ou l'arrêter à volonté, et guider celui-ci dans n'importe quelle direction sur le lit plan.

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