SU1458450A1 - Arrangement for producing woven ribbons in ribbon loom - Google Patents

Description

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The invention relates to textile machinery and can be used on ribbon-weaving machines when locking the weft yarn.

The purpose of the invention is to increase the productivity and reliability of work by reducing the breakage of the weft threads.

IV, 1 shows a diagram of the device for producing tapes on a ribbon machine, top view} on 4ig. the same in successive operating positions; figure 3 - section aa in figure 2a.

The lentotkat machine includes a shedding mechanism with remises 1 forming oblique throat and a device for making woven tapes.

containing by the number of ribbons, measuring mechanisms 2, made in the form of rotating cones with pinch rollers, cam compensated w 3, each of which is made in the form of a flat cam with two fixed eyes 4 and is located in front of the corresponding nozzle 5 mounted on the machine frame with one side of each tape and located above the planes of the inclined sheds of adjacent tapes, spring compensators 6 located between the measuring mechanisms 2 and cam compensators 3, edge-shaping devices with a tongue and needles 7, located on the other side of the tape. The machine also includes a batan mechanism with reed 8. Inclined pharynx within the width

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each ribbon is formed, for example, by using a heave with a different arrangement of their eyes in height, or by rotating the ribbon by a certain angle at the hem of the tape.

 The device works as follows. .

Through the shafts 1, the shedding mechanism forms, at the same time, oblique throat of all the belts of all the belts. The weft yarns 10 are lubricated from the spools 11 by means of the measuring mechanisms 2 and accumulated in the form (Itel 12 cam-type compensators 3. At the same time, by contacting the weft threads tucked into the mobile eyes 4, they are pulled away from the measuring mechanisms of the cam mechanisms form loops. 12. Through the jets of compressed air passing through the nozzles 5, weft yarns 10 of greater length than the one needed to form the belts are formed into the sores. The sensors 3 release the loops 12 and the weft yarns are fed into the mouths from the loops 12, as well as due to their continuation; 1 | Aci measuring mechanisms 2, Using the tongue needles 6 of the edge-forming devices on the opposite to the nozzles, the sides of the belts form the edges due to the binding of the loops weft yarns with additional loops 15, the excess of weft yarns from the mouths through cam com- pensators 3.

During the laying of weft threads through the mouths in the spring compensatory: there is a -determined loop stock of weft yarn in the form of a loop. The amount of this reserve in laying the weft yarns does not change, since the force of the laying air stream is less than the force of the spring compensators 6. The laying of the weft threads doesn’t have the idle state because the weft threads pass through the spring compensators, Do not reject them. At this time

1458450. .....

Daily threads in the area between the edges of the tapes and nozzles. At the same time, the length of the weft yarns in these zones increases during harvesting (FIG. 2d, d) for

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by feeding the weft yarns into these zones from the loops of spring compensators 6 under the action of a reed. The spring compensators are in this condition in 10 working conditions — the length of the loops of the weft threads is reduced and the spring compensators are deflected. The tension of the weft Bs when they are nailed depends on the extent of the preliminary tightening of the spring compensators 6 in the helix plane.

Pooroperio tape formation is followed by adem.

At the same time, for all tapes from OQHOB- 20 strands 9 form oblique throats (Fig. 2a). The weft threads 10 are wound off the reels 11 by metering mechanisms 2 and accumulated in the form of loops 12 in cam-type compensators 3. 25 Then the weft threads 10 are laid in the throats in the form of loops by jets of compressed air coming out of the nozzles 5 (Fig. 26). At the same time, weft yarns are fed. Yarns of greater length than 30 are needed to form tapes, as a result of which, opposite to the nozzles, the edges of the tapes form loops 13. of weft yarns 10 extending beyond the tapes.

Edges of ribbons are formed due to the fact that in the area of the loops 13 of the weft threads 10 feeds hooks of the tongues 7 edges of the mechanisms of formation in a knotted position, moving the needles along the edges 40 in direction to the helix device and positioning the hooks of the needles from above relative to the loops 13. In loop 13 below additional threads 14 are introduced by yarn guides 14, laying them under hooks of 45 tongue needles 7 (fng.2c).

Then, by means of cam-shaped compensators 3, an excess of weft yarns is selected from the throats (Fig. 2d) and wires. looped columns of. 5Q / gel strings 15 are formed to form edges, dp of which tongue needles 7 are moved along edges of ribbons in the direction from the heald device.

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While nailing the weft yarns, the hip 8 moves to the edges of the weaving belts (Fig. 2d, d) and moves

At the time of weaving yarns, to the edges of the tapes, weft threads are fed to the edge between the edges of the tapes and the nozzles, the weft yarns are made to the edge of the weft thread, which is distributed to the edge of the weft yarn.

At the same time, during weaving of the weft yarns, weft yarns are fed into the area between the tape edges and nozzles under the action of the reed 8. from the loops of spring compensators 6, thereby creating the necessary tension on the weft yarns (Fig. 2e).

By varying the tightening force of the spring compensators in the proposed device, it is possible to regulate the tension of the weft threads at the time of their pick-up and thereby reduce the appearance of the weft threads, adjust the structure and

the quality of the woven ribbons formed in the closed edges when laying the weft threads with fixedly mounted nozzles.

The small dimensions of the nozzles and their location at the edges of the ribbons above the planes of the inclined eaves of the adjacent ribbons reduces the distance between the woven ribbons and increases the number of simultaneously produced ribbons.

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Claims (1)

DEVICE FOR PRODUCING FABRIC TAPES ON THE TAPE MACHINE, containing the number of tapes with one