Patent ID: 6327877
Filing Date: 2001-12-11
Classification: D04B

Abstract:
Device for obtaining festoons on a crochet machine for warp weaving, said machine comprising one or more needles, at least one thread-guiding cop movable between a first position wherein the thread-guiding cop is located in proximity to the needles to engage operatively therewith at least one woof thread borne by the cop itself, and a second position wherein the cop is laterally displaced with respect to the needles to extend the woof thread away therefrom, said device comprising:at least one curling hook presenting a hooking portion set to engage the woof thread borne by the thread-guiding cop;first control means to actuate the rotation of the curling hook around an axis of rotation essentially perpendicular to the hooking portion itself;wherein the improvement comprises:at least one hook-holder block engaging the curling hook;second control means operating on the hook-holder block to take the curling hook from a starting position, wherein the curling hook is located in correspondence with the thread-guiding cop, and an ending position, wherein the curling hook is located between the starting position and the needles;selection means operatively associated to the second control means to select the distance of the starting position and of the ending position from the needles at each working cycle of the textile machine.