A device, for controlling warp threads for the production of leno fabrics on a textile machine, comprising vertically adjustable heddle frames mounted on a third heddle frame

摘要

A device for controlling warp threads for the production of leno fabrics on a textile machine comprises a reed 1 equipped with gliders separated from each other by slots intended to guide pairs of warp threads, one of which belongs to a system of stationary warp threads 19, and the other, to a system of rotating warp threads 18. A reversibly moveable system of needles 3 fitted with eyes 4 for guiding the system of stationary warp threads 19 is arranged in front of the reed 1 and coupled with a mechanism adapted to impart to it said reversible movement. The device further comprises vertically adjustable heddle frames 10, 11, 14 situated in front of the system of needles 3, a first heddle frame 10 having oblique slots 12 for the passage of the rotating warp threads 18, a second heddle frame 11, a straight slot 13 passing through the whole width of the warp for the passage of the warp thread system 18. At least one guide member 20 of the stationary warp thread system 19 situated over the heddle frames 10, 11, 14 in parallel with them is coupled with the system of needles 3 fitted with eyes 4 and at least two compensation rollers 15 of the rotating warp thread system 18 are mounted on a third heddle frame 14. The guide member 20 is situated in front of the plane passing through the system of the needles fitted with eyes, considered in the direction of the travel of the warp threads. Rollers 15 may be mounted on a swinging shaft 16 adapted reversingly to swing on the third heddle frame 14 and coupled with the drive mechanism (not shown).