CS203546B3 - Multiphase weaving apparatus with rotary reed - Google Patents

Description

BACKGROUND OF THE INVENTION The present invention relates to an apparatus for multiphase weaving on a rotary jet machine according to U.S. Pat. No. 197 424.

This weaving machine * is designed for single-phase weaving and has an annular cane on the hollow cylinder with oval slots of picking tracks for pulling wefts and spacers that are mutually reinforced by foreheads or through screws. Auxiliary nozzles are provided in the fabric width, apart from the peripheral devices, i.e. nozzles, projectiles, in the width of the fabric, the comb, leaf or jacquard beam being positioned and connected by two warps on both sides of the rotary beam.

This machine can be improved by the multiphase weaving device according to the invention, characterized in that the picking weft pickers are located at the starting edge and in the gaps between the fabric panels on the front side of the rotary beam for weft insertion in one direction, e.g. to the left and on the opposite, rear side of the rotary beam in the opposite direction, from left to right, and optionally on the lateral sides of the rotary beam, a mechanical or electromagnetic weft transfer device is provided from the rear to the front of the rotary beam.

The advantage of a rotary web weaving machine over the known weaving methods is the simplicity of weaving using pulling wefts, reducing the built-up area, especially when bilaterally guiding the warp, and, in addition, the high production that exceeds almost all known weaving machines previously demonstrated. Nozzles can achieve up to 800 passes / min, which can be achieved on rotary jet machines. When weaving large widths over several widths, a greater number of covers can be used, and this is the benefit of this multi-phase weaving.

The following examples indicate an increasing result with the number of parts used and their smaller widths; machine width 3.60 m and variable number of covers: 2 warps and 2 nozzles = = 2 times 3.6 m l 400 sheets / min. = 2880 m / min. woven weft 2 warp 8 nozzles = 2 times 4 times 0.9 m times 500 passes / min. = 3600 m / min. woven escape. This means a quarter of more meters worn on this machine. Even more interesting would be weaving Chinese shantung, whose universal width of 45 cm allows cutting and sewing of all garments for women and men. With weaving of this width repeated up to a width of 360 cm and 800 strokes / min achieved at these widths, production is twice as high as the original weaving:

2.8.0,45.800 passes / min = 5760 m / min woven weft.

The attached schematic drawing shows the rotary beam with the locations of the picking units.

Even on rotary beam machines and larger widths it is possible to weave in several parts. It is precisely this width division of the fabrics that allows the picking devices 16 to introduce the pulling wefts either by nozzles or projectiles into the somewhat enlarged gaps between these parts. Nozzles 16a, 16b, 16c acting in one direction and opposing directions 16d, 16e, 16f are shown on the sides of the rotary jet 11, as shown by the nozzle arrows.

If projectile picking is chosen, then the picking mechanism, for example by means of electromagnets, are located at the locations where the nozzles 16a, 16b, 16c are shown with the pull in the direction of the arrows. Then the projectiles without weft capture mechanically or electromagnetically move from the nozzle point 16g in the direction of the dashed arrow to the original nozzle point 16d and from there with the wefts in the opposite direction from the original nozzle points 16d, 16e, 16f to 16h. to the initial position of the nozzle 16a. Thus, in the illustrated example, six fabrics of 120 cm width are woven simultaneously, or, in the calculated example, eight fabrics of 90 cm width, with a significantly higher number of swaps than would be possible with a full width of 360 cm.

A great advantage of the rotary beam is the possibility of bifrontal weaving and weft picking and weft picking at one time, which is noticeable against the production of conventional weaving machines.

Claims (1)

SUBJECT A rotary jet weaving machine according to the author's certificate No. 197 424, characterized in that the picking weft pickers (16a, 16b, 16c, 16d, 16e, 16fj) are located at the starting edge and in the gaps between the fabric panels on the front side of the rotary jet ( 11) for inserting wefts in one direction, e.g. from right to left and on the opposite, rearward side of the rotary beam (11) in the opposite direction, i.e. from left to right and optionally on the lateral sides of the rotary beam (11) is provided a mechanical or electromagnetic weft transfer device (16g, 16hj) from the rear to the front of the rotary beam (11).