Patent ID: 7694697

Claim:
Gripper weaving machine for multicolor weaving, with which at least two weft threads pulled off from different bobbins are sequentially one after another inserted by at least one gripper into a loom shed formed of warp threads and are cut-off on the insertion side by a separating device, with at least two driven reaching-in elements that position, in the running path of the gripper, the weft thread that is respectively to be inserted, and with an arrangement for grasping and holding the weft thread ends remaining on the bobbins after the cutting-off, wherein this arrangement is arranged near the separating device, whereby these weft thread ends are grasped and held separately from one another, and for the insertion of a weft thread selectively one of several weft threads is brought into the running path of the gripper by one of the reaching-in elements, while the other weft threads are held outside of the running path, characterized in that a) a suction chamber block ( 10 , 20 ) is provided as the arrangement for the grasping and holding of the weft thread ends remaining on the bobbins ( 1 , 2 ) after the cutting-off, wherein the suction chamber block is divided into at least two suction chambers ( 12 , 13 ; 21 , 22 , 23 , 24 ) which respectively grasp one weft thread ( 3 , 4 , 43 , 44 ) and hold it, and each of which is allocated to a certain weft thread end, b) at least two suction chambers ( 12 , 13 ) are made ready by a movable element that comprises a pivoting flap ( 11 ) provided in the interior of the suction chamber block ( 10 ), and c) for weaving with more than two weft threads ( 3 , 4 , 43 , 44 ) pulled off from different bobbins ( 1 , 2 , 42 , 43 ), the entire suction chamber block ( 20 ) is arranged to be movable by means of a movable element that is a part of a drive for the suction chamber block ( 20 ), in such a manner that each weft thread ( 3 , 4 , 43 , 44 ) is allocated to a different suction chamber ( 21 , 22 , 23 , 24 ).