SU1335591A2 - Selvedge-forming device for shuttle-less loom - Google Patents

Abstract

The invention relates to the field of textile engineering, is in addition to the author. St. No. 598982 and allows to improve the quality of the edge of a cuttable material obtained by the edge forming machine of the shuttleless loom. To solve this goal, the inner wall B of the nozzle 2, opposite the wall having a slot 5, is located at an angle of 4-15 to the direction of air movement in the nozzle while holding the weft yarn. 9 il. 1

Description

The invention relates to the textile industry with respect to the edge loom to the shuttleless loom and is an improvement to the edge shaping machine. No. 598982о

The purpose of the invention is to improve the quality of the obtained edge by placing in the throat the basis of the end of the weft thread parallel to the previously laid weft thread.

Figure 1 shows the proposed edge former (right), view from above, longitudinal section in figure 2 - a section on FIG. 3 - edge former, rear view on FIG. 4 - view B in FIG. 3 in FIG. 5 - edge former (left ) with three air channels, top view, longitudinal section; Fig, 6 is a section bb In fig.Z; in Fig.7 is a diagram of the installation kromkoobrazovatel relative to the throat of the base, side view; on Fig - diagram of the laying of the end of the weft yarn in the mouth MAIN; figure 9 - diagram of the installation of edge formers on shuttleless loom.

Edger to shamelessly

The weaving machine comprises a housing 1, a flange IA, an executing nozzle 2 and an air channel 3, stabilizers 4 of the edge former located in front of the nozzle 2 on both sides of it, and a blind slot 5 for pulling in the air flow of the tip of the weft thread ( not shown) located in the body of the nozzle 2 along its axis in the plane of the stabilizers 4 from the side of the shed 6 of the base 7, (FIG. 7).

The inner wall 8 of the nozzle 2, opposite the wall having the slot 5, is located at an angle oi 4-15 ° to the direction of air movement in the nozzle while holding the weft yarn. In this case (Fig. 8), the placement of the end 9 of the weft yarn 10 in the throat of the warp 7 is ensured, parallel to the previously laid weft yarn 10 or even inclined to the weft yarn 10, and the rim 11 acquires a good presentation.

When the inner wall 8 is tilted at an angle ot more than 15, the average number of whiskers appears, and the number of complete duck ends fails to grow as compared with improper laying. Malfunction

g

the edge former is probably associated with an increase in the turbulence of the air flow reflected by the edge of the fabric 12. When the value of ft is less than 4, there is also an increase in the number of cases of mustache, since the edge former works in this case as a serial, not providing full placement The ends of the weft are pa- rashlyno before a previously laid weft yarn.

The edge formers right I and left IA (Fig. 9) are mounted for movement from the marsh 6 to the edge of the web 13 of the fabric 12 due to the linking of the machine 14 with the lever 15J, the other end of which is hinged on the lug shaped in the form 16, screwed to the bracket 17, mounted on the front of the machine, the Edger I is pivotally attached to the lever 15. The stabilizers 4 edge shapers enclose the warp 7, with the result that the latter is always located exactly (Fig.7) in the center of the fundament 7. The correct orientation is th utrchnoy yarn end relative to the slit 5 le0

five

is the air flow from the pneumatic system of the machine, which passes through the channels 18 (Fig. 5) of stabilizers 4. The channels 18 should create air flows connecting at the end of the slot 5 of the edge former IA during duck suction. The air pressure in the channels 18 of the stabilizers 4 should be approximately 0.04 atm.

The flow rate of air in the channels 18

The stabilizers 4 of the left side edger IA are adjusted by turning the needle in the air supply controller 19.

The formers I and IA are connected by a pneumatic system 20 by a pneumatic pump 21 through a filter 22, which prevents dust and lint from entering the pump 21. The latter periodically changes the direction of air in the edge formers I and IA, which allows sucking the ends of the weft yarns due to vacuum and lay them in next open throat with compressed air.

Edge formers work in the following way.

When the batana 14 moves to the front position, the Edge Formers I and IA, by means of the connecting link of the Batan 14 with the lever 16, move beyond the edge 13 of the fabric 12 towards the spinning rod 23. Two air streams emanating from the channels 18 of the stabilizers 4 of the edge forming IA hold the end of the weft yarn in horizontal position, which contributes to its reliable suction through the slit 5 into the nozzle 2 of the edge former IA. At the same time, the end of the weft yarn is sucked into the right edge former I. After the weft yarn comes, the reed goes back and The change of the pharynx 6 occurs, the edge formers I and IA move together with the bard towards the pharynx 6, and their nozzles are positioned opposite to the shed near the edge 13 of the fabric 12, while continuing to hold the ends 19 of the weft 10, When the direction of air movement changes I and IA ends 9 of weft 10 (Fig. 8) are blown into the newly formed shed 6 and, due to the inclination of wall 8 at an angle of 4-15 to the direction of air movement in the nozzle while holding the weft yarn, the ends 9 of the weft yarn are inserted by air

10 are arranged in parallel to the previously laid weft yarn and are held in the throat by an air stream until the next weft yarn is installed, which fixes the bent ends of the previous weft yarn. Next, the cycle is repeated.

The use of the invention will make it possible to improve the quality of the fabric to be scraped by improving the quality of the edge obtained and to increase the service life of the edge-forming formers through the implementation of - in the form of monolithic structures.

Claims (1)

Invention Formula Edger to shuttleless loom on auth. ev No. 598982 characterized in that, in order to improve the quality of the resulting edge, the inner wall of the nozzle opposite the wall having a slit is positioned at an angle of 4-15 to the direction of air flow in the nozzle while holding the weft yarn. View 6 eight Have / eight FIG. FIG. / 7, 8 FIG. five B-s tf-L ± M ± 4 .Shch-P: rs: p: | ± 4 iB-Tifii .pu .g. -. . ; .. ;;. .-..- / .- Ж id - ± r: -... -.- E ffkStb iJ-tl: h. .i W 15 ® 22 16 eleven sixteen n nineteen Editor I.Gorn Compiled by N.Samarina Tehred L.Serdyukova Order 4020/23 Circulation 424 Subscription VNShPI USSR State Committee for Inventions and Discoveries 4/5, Moscow, Zh-35, Raushsk nab. 113035 Production and printing company, Uzhgorod, Projecto st., 4 Proofreader L. Pilipenko