SU1595957A1 - Method of supplying weft yarn to inserter of multicolor shuttleless loom - Google Patents

Abstract

The method of feeding the weft threads to the plotter of the multicolor shuttleless loom, in which each of the weft threads introduced into the feed nozzle is kept in its initial position by the air flow, alternately in accordance with the color change program is released by means of a brake and compensator of the machine for the length necessary to capture it penetrator, served to the plotter with an air stream, cut off and hold the end of the thread with an air stream until the next supply of this thread to the plotter, characterized in that, in order to increase by ezhnosti yarn feeding and reducing the air flow, while holding the yarn end after cutting pressure acting thereon airflow is reduced to the value required for its retention in the state tensioned.

Description

The invention relates to textile machinery and can be used on multicolor shuttleless weaving machines for feeding weft yarns to a plotter when changing patterns on weft,

The purpose of the invention is to ensure reliability under chi threads to the plotter and reduce air flow.

The drawing shows the implementation of the proposed method.

The weft yarns 1 and 2 are inserted into the feed nozzle 3, which has 4 and 5 compressed air inlets, equipped with distributors 6 and 7, each of which is connected by a pneumatic actuator 8 to a compressed air source of greater pressure (not shown) and pneumatic actuator 9 s. more compressed air source

low pressure (not shown). The weft threads 1 and 2 pass through the compensators 10 and 11 and the brake elements 2 and 13, respectively. The end of the weft thread 1 is in the nozzle 3, and the end of the cotton thread 2 is in the jaws of 1 4 °

The method is carried out as follows.

The weft threads 1 and 2 inserted in the nozzle 3 hold the tensioned state in the initial position by the air stream. signal from the mechanism of changing the color of the machine. Letting go of the compensation

SP

"

31

With thread 10, thread 1 is fed to plotter 14 by this thread and pushes into the base of the warp. Therefore, brake element 1 2 is removed from tycKaeT thread I о At the end of the strip, the brake element 11 clamps thread 1 , the compensator 10 draws its end to the nozzle 3, and the distribution H1 6 connects the low pressure pneumatic actuator 9 to the air supply 4. The air flow entering the nozzle 3, t ft thread 1 with less force. At this time, the signal from the mechanics of the shift occurs in the described sequence, the supply of the thread 2 to the plotter 14 by the air flow through

595957

valve 5 and pneumatic actuator 8, while thread 1 is in the course of the entire width of thread strip 2 under the influence of air flow of less pressure. When changing weft, the signal from the color change mechanism is fed to the appropriate valve 6 ipi 7 o

- fo The application of the proposed method allows, by means of an air stream of less pressure on the weft thread during the compensation process and to reduce it

- 15 destructive effect, and, consequently, increase the reliability of the thread feed to the plotter and at the same time reduce air consumption

Editor AoLezhnina

Compiled by N. Furazhkin

 M.Didyk Corrector M.Sharoshi

Order 2892

Circulation 382

VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 1130: 5, Moscow, Ж-35, 4/5 Raushsk nab.

Subscription

Claims (1)

The METHOD of SUPPLYING DEFICIENT THREADS to the MOLDER COLORED INVINTERAL MULTI-COLOR MACHINE BUILDER, in which each of the weft yarns set in the feeding nozzle, was placed on the floor of the machine, and the program was pressed into place. penetrator, served to the plotter with an air stream, cut off and hold the end of the thread with an air stream until the next feed of this thread to the plotter, characterized in that, in order to increase the ezhnosti yarn feeding and reduced air flow, while holding the yarn end after cutting pressure acting thereon airflow is reduced to the value required to hold it taut.