CS251364B1 - Picking channel of air-jet loom formed by profile reed - Google Patents

Abstract

a) Profiled channel of a pneumatic loom which is formed by a profiled dent of the reed. b) Characterised in that this weft-insertion channel is limited downwards over the entire width of the shed by an auxiliary batten 7 which is connected movably to the slay 3, its surface being located below the lower layer 12 of the shed when the shed is open. c) The invention relates to a profiled channel of a pneumatic loom which is formed by a profiled dent of the reed. <IMAGE>

Description

(54) The interlacing channel of the air loom created by the profile beam

The purpose of the solution is to provide the advantages of the groove of the two-tooth profile beam and the advantages of the profile beam with only one tooth, by simply adjusting the picking channel of the profile beam with one tooth. The object is achieved by defining a picking channel delimited by a single-tooth beam, fixed in common with the auxiliary nozzles on the perch, from below to the entire width of the loom defined by an auxiliary strip movably connected to the perch. When the shed is open, the area of the auxiliary bar is located under the bottom shed branch.

BACKGROUND OF THE INVENTION The present invention relates to a non-confusing picking channel of an air weaving machine with a single tooth profile beam.

Embodiments of a non-confusing picking channel of a twin-tooth air jet weaving machine are known, in which the recess space between these flanges forms a weft flight guide supported by an air stream from a series of blowing nozzles distributed over the entire weaving width in an open shed of oscillation

There are known embodiments of single-tooth profile beams located at different cane widths, of which the beam is then assembled so that cane alternates with different tooth heights, so that again a groove for guiding the weft passage is formed, as is denied, for example, in the Swiss patent. No. 639,709.

It is further known that the profile beam is provided with a single tooth on its cane, and the auxiliary air flow is fed through the apertures located in the faces of the stair profile, such as Swiss Patent Specification CH 319 512. Experience has shown not to replace self-adjustable auxiliary nozzles. the holes are not always advantageous because they need to be individually adjusted and also their density needs to be changed in some cases. Also, the two-toothed cane beam has the disadvantage that it is necessary for dense fabrics to achieve the closest possible proximity to the spokes.

These drawbacks and drawbacks are solved and substantially eliminated by the single-tooth profile weaving channel of an air loom formed by a single-spoke profile beam directed towards the weaving plane and by auxiliary nozzles facing the profile beam cane and fixed together with the profile beam on the perch profile. The duct is defined from below by an auxiliary bar movably coupled in the perch profile from below, its surface being positioned below the lower branch of the shed when the shed is open. Another principle is that the auxiliary strip is part of the angle adjustable on the perch profile.

The solution according to the climb ^{Y is N,} a number of advantages. ^Shoe auxiliary l ^l in u can easily be prepared ^and m * from a hard, highly non-corrosive materials. When loading the loom It is easily removable 8 making it easy to clean.

D ^and that the changing shed can easily meet nastavlA. ^EXAMPLE them further zejirfuje easily converted profiled beam to only jednoozubevý and its solution fully replaced beam - dvojozubový with the profile groove, which is known to consume a smaller amount of the pick-it of air, the solution according to the invention retains the advantage of the beam jedmeezubovéhe that that is to say, when weaving, for example, a dense fabric, it is possible to achieve a greater proximity of the expander to the profile beam. It thus makes it possible, by simple means, to adjust the profile beam picking channel according to the needs of different types of fabrics, especially when using twist-free yarns.

SUMMARY OF ^{Y is N,} e ^{lezu: ➢} pat-RNA from ^ ^ thrown on ^to resume above, ^the esters It depicted ^ ^ is a schematic sectional view of an exemplary assembly cally pick channel of the air weaving machine according to the invention in both extreme positions of the profiled beam.

A perch profile 2 is fastened to the sub-wall 1 'by means of a gauge 6, in which a T-shaped groove 10 is formed, in which a stone 6 with an auxiliary nozzle 4 is inserted extending into the open shed of the warp threads formed by the upper branch 11 and the lower branch 12. In the notch 6 of the perch profile 2, the lower part of the profile beam 6, which has cane parts, is retained. Between the profile beam 6 and the second series of auxiliary nozzles _e J for the entire weaving width adjustably mounted auxiliary rail 2, which is associated with the profile bidlovým first embodiment, the auxiliary rails' 2 ^e bidlovým its connection with the profile 2 may be performed in different ways, but always so that the upper surface of the auxiliary bar 1, when the shed is open, is at the rear dead center of the profile beam 6, adjustable to be positioned below the lower strand 12 of the shed of the warp threads.

This can be achieved by providing the auxiliary strip 2 as part of an angle whose one leg is fixed over the entire weaving width together with the lower part of the profile beam 6 by a screw 8 in the perch 2 and the other angle leg has its upper surface parallel to the lower leg 12 The warp threads, which together with the upper strand 11 form an open shed at the rear dead center of the profile beam 6. In the striking position of the profile beam 6, its tooth 13 is above the weaving plane.

The function of an exemplary embodiment is as follows: In the preparation of the weaving machine for weaving a selected fabric at the position of the profiled beam 6 at the rear dead center in height to the weaving plane to set its upper surface a support sheet 2 below the plane of the bottom branch 12 'open ^p Rosh ^l u ^p u warp ^and c ^h n ⁱ T ⁱ and ^securement ROS ^{cl ip} m e ^d kY handles ^YTI one arm ^ e ^^ AC auxiliary strip second embodiment of the notch 2, bidlového profile and together with the lower part of the profiled beam

This arrangement is not particularly limited and is influenced by performing auxiliary strip 2 * This upper surface of strip 1 define with a profiled beam having one cog moment weft insertion pick channel, which reduces the loss of air in the picking or ^from the rail 2 ovMvnuje warp ^and thread! o ^ ^ o ferment for the ^SL up.

for pick, soak

After picking the weft (not shown) through the picking channel defined in accordance with the invention, the movement of the profile beam 6 into the downstream surface and thereby the removal of the picking including the auxiliary nozzles -2 of the closing warp thread shed and the profile beam tooth 13 protrudes above the weaving plane.

Claims (2)

SUBJECT OF THE INVENTION the entire weaving width of the auxiliary bar (7), its upper surface being 1. A picking channel of an air weaving machine formed by a profile beam with a single tooth facing the weaving plane and auxiliary nozzles facing the profile beam cane and fixed together with the profile beam on a perch profile, characterized in that the picking channel is delimited from below with a perch profile (3), wherein the shed is located under the lower shed branch (12). Swap channel according to claim 1, characterized in that it is adjustable on the perch (3). that the auxiliary strip (7) is part of the