SU1467105A1 - Arrangement for preparing weft yarn for insertion in shuttleless loom - Google Patents

Abstract

The invention relates to the dough industry and can be used on shuttleless looms and improves the quality of the fabric while expanding the range. The weft threads are twisted using a hollow spindle, on which the additional bobbin holder 8 is located. The weft thread from the lower bobbin holder 11 passes through the controller 10,

Description

one

The invention relates to the weaving of textile industry and can be used with the introduction of the twisted of two threads I weft yarn in the throat on shuttleless I weaving machines.

i The purpose of the invention is to increase the quality of the tissues injected while simultaneously expanding their range. Fig, 1 shows the device

 to prepare the weft threads for the prokla: for the tailless weaving mill: ka, general view; in fig. 2 - controller - presence of weft yarn ..

The device for preparing weft yarns contains a pulley 1, seated on

Main shaft 2 weaving machine. A belt connects pulley 1 and pulley 4 located on hub 5, which functions as a spindle. The sleeve 5 is supported by bearings 6 and a bracket 7, the latter being mounted on the body of the weaving machine. A bobbin holder 8 is fixed on the sleeve 5, and a controller 9 is mounted above it. Under the bearing 6 of the hollow spindle 5, a controller 10 is installed and below it is the lower bobbin holder 11, the controller 10, the sleeve 5 with the upper bobbin holder 8 and the controller 9 are aligned along one line. 9, there is a guide hole 12. On the main shaft 2 of the weaving machine, there is a measuring pulley 13 with a rubberized roller 14, which is in contact with it and thereby rotates. Above the measuring pulley 13 is placed the controller 15, which controls the weft threads directly from the rapier.

The weft yarn controller contains a textolite body 16, attached .2

to the bracket 17 attached to the frame of the loom. The double-arm lever 18 is mounted on axis 19 rotatably thereon. On the right shoulder of the two shoulders lever 18 is a counterweight 22, mounted with the possibility of moving on it. Above the right shoulder of the two shoulders lever 18 mounted stop 23, limiting its upward movement. From the bottom of the two shoulders lever 18, pin-contact 24 is installed, to which the double-arm lever 18 closes when the weft 21 is broken. Axis 19 is a common contact.

The device works as follows.

A pulley 1 receiving a rotational movement from the main shaft 2 of the loom through the belt 3 drives the pulley, and together with the pulley 4 the sleeve 5 rotates with the upper reel b. The measuring pulley 13 uses a rubberized roller 14 to wind the weft yarns from the upper b and lower 1l spools. The weft thread from the lower reel 1l passes through the controller 10, enters the sleeve 5, the controller 9 of the upper reel and guide hole 12. The weft thread from the upper reel bore into the controller 9 and into the guide eye 12. Due to the rotation of the upper reel 8, we specify the thread reeled from it is twisted with the weft thread of the lower reel 11, and through the guide hole 12 the twisted threads enter the measuring pulley 13 and the rubberized roller 14, which wind the weft threads from the upper reel B and the lower reel 11. From the measuring pulley 13

31467105

the threads go to controller 15

with to and from

and into the rapier, which runs them into the pharynx. (The rapier is not shown, it is in line with the controller 15). The twist value is changed by changing the pulleys 1 and 4. When the weft of the Hbix threads breaks or descends from the upper or lower bobbins 8 and 11, the controllers 9 and 10 respectively operate and stop the loom, preventing the fabric from scraping.

The weft thread checker is running after. in a way. The weft thread 21 is unwound from the spools 8, passes inside the ring 20, and due to the locking ball, the thread lifts it up to touch the two shoulders lever 18 to the stop 23. The electric circuit between the double shoulder lever 18 and pin 24 is broken, the weaving machine can work. When the weft yarn 21 is trimmed, the ring 20 lowers under its own weight, the double-arm lever 18 rotates on axis 19 until it touches contact 24, the electrical circuit closes, the electronic relay (not shown) is activated, and the weaving machine stops

The use of the invention in industry allows an increase in the range of fabrics produced, as it allows to twist the threads from different fibers and with a small twist, which gives a specific effect in the fabric, which allows to obtain a new assortment of fabric with a reduction in rejects of the single yarn, since the weft thread is controlled and when one of the weft threads is produced, the machine stops due to the introduction of controllers installed directly at the reels, which contributes to an improvement in the quality of the fabric.

Maintenance of the loom is facilitated by the fact that there is no need. to eliminate shortfalls and to make searches in the development of large-grained superheteries, since the machine manages to lay one more specification from the available stock before stopping.

In addition, the production space is saved due to the reduction of torsion and tipping machines during the preparation of weft yarns, labor productivity increases due to the reduction of the professions of torsion and tipping machines operators.

Claims (3)

1. A device for preparing weft threads for plowing on an shuttleless loom containing a pair of bobbin holders sequentially installed along the threading thread, a means for twisting the threads, (Means for accumulating and feeding the twisted threads to the plotter and the wearer controller, electrically connected machine stop mechanism, characterized in that, in order to improve the quality of the fabric being bent while expanding their assortment, the means for accumulating and feeding the weft yarn is made from the measuring pulley with a rubberized roller, and the means for twisting the threads are made in the form of a sleeve located coaxially with the first bobbin holder and kinematically connected with the measuring pulley, while the second bobbin holder is attached to the outer surface of the sleeve. 2. The device according to claim 1, characterized in that it additionally has controllers for the presence of each of the twisted 1 X strands placed after the respective bobbin holder in the course of unwinding. 3. The device according to paragraphs. 1 and 2, about t - in that each of the controllers for the presence of threads includes a double-arm lever mounted in a vertical plane on an axis electrically connected to the mechanism of the rest of the new machine, one arm of the lever has a counterweight, and the other carries a ring for passage weft yarn, and an abutment located in the zone of the lever arm carrying the ring, above the shoulder an abutment for limiting the movement of the lever and under the shoulder a pin electrically connected with the machine stop mechanism. go ipuf.B