RU1770476C - Method for broken warp looming in reed tooth - Google Patents

Abstract

The invention relates to light industry, relates to a method of sifting a tattered main thread into a tooth of a bird on a weaving machine and allows to increase the reliability of the sagging. The method consists in the formation of a gap in the base system at the breakage point, the threads are extended, two flexible tapes are introduced into the gap, oriented along the extreme threads of the gap before they interact with the teeth of the reed adjacent to the tooth in which the thread is broken, after whereby a tattered thread is drawn between the tapes, further orienting it in the center of the interdental space. 7 ill.

Description

The invention relates to the textile industry, in particular to the automation of the operation of sifting the main thread into the reed tooth during the elimination of a break on a weaving machine equipped with working bodies closed from above.

The purpose of the invention is to increase the reliability of the shutter.

A device for implementing the method of threading a floss into a tooth of a reed is shown in the drawings, where in FIG. 1 shows a General view of the device from the side; in FIG. 2 - the same, top view; in FIG. 3 - camera with a coil and ribbons; in FIG. 4 is a diagram of a process for introducing tapes into a tooth of a reed; in FIG. 5 - guide clearance in the base with flexible tapes; in FIG. 6 is a diagram for aligning the midline of the tapes with the base plane; in FIG. 7 is a diagram of an additional orientation of the threading tape along the tooth of a byrd of a dangling thread.

As shown in FIG. 1, 2, the device is made in the form of a carriage 1, reciprocatingly moved across the base by a drive (not shown),

connected to the carriage by means of bracket 2. The main actuating unit of the device is a sampling mechanism 3 with a guiding head 4. Vertical movement of the mechanism is carried out by a telescopic drive 5, hinged to mechanism 3 by means of bracket 6. To hold the mechanism when it is positioned in a fixed position the position of the device is equipped with a controlled brake mechanism 7 connected to the actuator 5, for example by means of a flexible coupling 8, and to deflect the mechanism 3 to different angles of perpendiculars angles to the plane of bases - mechanism 9 connected with the mechanism 3 through a flexible connection 10 with rollers 11.

The guide head 4 (Figs. 1, 3) consists of two mutually parallel jaws 12 with a gap 13 between them, connected to the mechanism 3 by means of nozzles 14, 15. one of which serves as a rail. In the lower part of the body of the mechanism 3 there is a chamber 16 (Figs. 1, 3), in which

VI

vi About 4 x | ABOUT

a coil 17 is placed on which three flexible tapes 18, 19, 20 are wound, brought out to the ends, of which the lateral 18, 20 are movably tucked into the guide grooves of the cheeks 12, and the middle threading tape 19 is freely located in the gap 13. At its front end loosely wears a collar 19a, the thickness of which is slightly less than the distance between three adjacent teeth of the birch, designed to accurately orient the end of the thread-sampling tape along the midline of the tooth of the birch before the thread is worked.

To extend the tapes to the galev and tooth of the reed by the gap, the mechanism 3 is equipped with a reversible drive 21 (Fig. 1) connected to two parallel and independently acting controlled couplings 22, 23, of which the first is kinematically connected to the coil 17, and the second through a pinion gear 24 and rails 14 - with a head 4. In addition, the device is equipped with a control system and controls

The device operates as follows.

As already mentioned at the beginning, in order to carry out the main thread flashing into the reed tooth by previous operations, the gap between the threads relative to the dangling thread must be opened in the warp. Therefore, in the initial position, the probe mechanism 3 and the head 4 are installed above the gap 25 in the warp (Fig. 4 ) Then drive 5 is activated (Fig. 1) and the mechanism is immersed in the gap until the midline 0-0 of the tapes is aligned with the base plane (Fig. 5). Then the actuator 21, the coupling 22 and the head 4 are turned on together with the tapes until the galev enters the gap 13 between the cheeks 12 (Fig. 4), the movement of the head is stopped, the coupling 22 is turned off and the coupling 23 is turned on. The coil 17 starts to rotate, the translational drive the movement of the tape 18 and the tape 20. At a certain stage of the movement, the front ends of the side tapes 18, 20 reach the extreme filaments 26, 27 of the gap, located at some angle relative to the tapes. These filaments are penetrated into the tooth of the reed 28, 29, adjacent to the right and left of the reed tooth 30 dangling neither ty 31 (Fig. 4). Therefore, the tape 18,20, continuing the movement of the front ends along the extreme threads 29, 30, will enter along them as along the guides in their

Byrd tooth. Thus, the tooth of the reed 30 of the dangling thread 31 is isolated from the remaining teeth of the reed.

This method of isolation of the tooth of the byrd makes it possible to deliver the restored dangling thread exactly to its tooth of the byrd. As shown in FIG. 6, between the belts penetrated into the tooth of the reed 28,29, a gap is formed between the belts 18, 20, converging at

a tooth of a byrd of a dangling thread 30 leading to a tooth of a byrd. Inside it will be located and galevo threads.

The threading tape 19, moving with some margin from the side tapes 18,

20, when moving inside the gap to the reed, at the moment of passing by the galev will capture from it the end of the thread 31 inserted into it and, continuing the movement with it, will be directed by the ribbons exactly to its reed tooth

30. However, this still does not guarantee the penetration of the tape into the tooth of the reed, since it is possible that the end of the tape 19 along the strips 18, 20 can pass into the adjacent tooth of the reed 28, 29 instead of tooth 30. To avoid

of this, at the moment of approaching the tape to the reed, its additional orientation in the midline of the tooth is carried out by means of a movable clamp at the front end of the tape having a certain thickness. Thereafter

the instrument tape along with the thread freely passes through the tooth on the opposite side of the reed, while the collar itself is delayed by the reed. The penetrated thread on the opposite side is intercepted

another device.

At this point, threading into the reed tooth is completed.

Claims (1)

SUMMARY OF THE INVENTION the floss into the reed tooth on a loom, including forming a gap in the warp at the place of the dangling thread, grabbing the dangling thread and passing it into the reed tooth, characterized in that, for the purpose of In order to increase reliability, before holding the dangling floss into the byrd tooth, the byrd tooth is isolated from adjacent teeth by two flexible tapes, for which they are held in the gap along its extreme threads until the tapes reach the teeth of the byd, after which the dangling thread is drawn between the tapes, while holding a dangling thread, it is additionally oriented in the center of the interdental space, 7 9 5 1- -.-Y ---- C P ---- V JM- E 2 -g iiЈL4, -. --t- - 1 | -L her out  ° 5Y. / / / s . 2 / 1 & (9 fte (4 / / g Sssxnm / l / 5/2 CA. 3 3 25 4 28 thirty 23 figure 5 eighteen FIG. 6 18 20 J9a