RU1794955C - Device for automatic insertion of the broken warp yarn into the heald of the weaving loom - Google Patents

Abstract

SUMMARY OF THE INVENTION: carriage (1), cut-off mechanism (2), housing (3), thread-cutting head (4), two brushes, clearance, rail (8), two nozzles, a source of increased or reduced gas pressure, a lower drive heat-picking head (14), coupling (15), gear (16), telescopic drive (17), movable tube (18), bracket (19), stopper, gale position sensor, swivel fork, fork end position sensor, swing fork clearance , galev entry sensor, galevo (26), positioning mechanism, electromagnet (28), measles

Description

FIELD OF THE INVENTION This invention relates to the automation of operations for knitting a main thread in a galevo while eliminating breaks on a textile loom.

A device is known for automatically sifting through a dangling warp yarn on a weaving machine, comprising a carriage mounted with the possibility of reciprocating movement along a guide across the weaving machine along the galev.

A disadvantage of the known device is low productivity due to the need to perform manual operations to eliminate a broken thread,

An object of the invention is to increase productivity.

In FIG. 1 shows a device, side view; in FIG. 2 - the same, top view; in FIG. 3-flow chart of the sample flow (movement of the thread-cutting head along the gap at the base to the galev, gripping of the gale, passage of the ho gap to contact with the entry limiter); in FIG. 4 is a view of a restored dangling thread located along the diameter of the hole on the inner brush of the thread-picking head; in FIG. 5 is a side view of the movement of the cutting head along the galev; in FIG. 6 is a side view of the phase of alignment of the bogey eye with the hole and with the thread laid in the gap previously inserted into it;

The device is made in the form of a carriage 1 (Fig. 1, 2), reciprocatingly moving over the warp across the loom. The main executive body of the device is a drilling mechanism 2, enclosed in a housing 3, provided with an externally disposed thread-bore head 4, consisting of two mutually parallel-located cheeks 5, 6 (Fig. 2) with a gap 7 between them, movably connected to with a sampling mechanism 2 by means of a rack 8. In addition, each cheek is provided with a nozzle 9, 10 movably inserted into the opening of the housing, one of which communicates with a source of reduced or increased gas pressure 11 (Fig. 2). Inside the case, the sampling mechanism comprises a reversing drive 14, kinematically connected to the thread-picking head 4 by means of a controlled clutch 15 (Fig. 1) connected to the gear 16 of the rack 8 of the working-out head 4, intended for its reciprocating movement along the threads the basics.

For vertical reciprocating movement of the parting mechanism in the gap of the base device

equipped with a telescopic type actuator 17 with an internal movable tube 18 connected by a lower end via an arm 19 to a sampling mechanism 2. The thread-cutting head 4 (Fig. 3) has on top a limiter 20 of the depth of entry of the galev into the gap 7 between the cheeks, equipped with a sensor 21, a rotary fork 22 provided sensor 23, The width of the closed end of the gap 24 between the profiled legs of the fork is slightly larger than the diameter of the section of the bale. At the front ends of the cheeks installed sensors 25 position galeva 26 ..

To ensure a smooth entry of the Holeve eye 26 into the gap 7 from the bottom to the stop with the plug 22, the device is equipped with a positioning mechanism 27 (Fig. 1) containing a controlled electromagnet 28 provided with a movable core 29. A flexible steel strip 30 passes in the gap between the core and the poles. connected at one end to the lower end of the movable tube 18. The thread 31 is threaded into the eye 32 of the galev 26.

The device operates as follows.

The workout of the restored main thread in galevo is preceded by a search for a dangling thread, opening the gap at the base, laying the thread in the gap 7 between the cheeks. In the initial position, the parting mechanism 2 with the parting head 4 (Fig. 3) is mounted above the gap 7 between the extreme warp threads.

In the case of sifting one by one thread into the reed tooth, the parting mechanism is installed above the base in the interruption phase, and when two or more threads are inserted into the tooth, above the upper plane of the open pharynx. In this position, the actuator 17 is activated (Fig. 1) and, with the stationary parting mechanism 2, the parting head-4 translates forward movement over the gap 7 to the galev 26. Its entry into the bell of the gap 7 will be detected by the sensors 25. When entering the gap, the galev 26 it will also be captured by a rotary fork 22, which will rotate the galevian 26 as it deepens into the gap 7. At the moment the galev 26 contacts the gap with the entry limiter 20 (Fig. 3), the fork 22 will press the galevous 26 to the galley 26 against the cheek of the parting head 4. The result is ha evo okazhets 26 enclosed in an opening with a diameter slightly larger than the diameter heddle. Therefore, the eye 32 of the galev 26 cannot pass through it, i.e. it is a limiter for the depth of entry of the eye into the gap 7 from below. When galey 26 reaches this phase, the coupling 15 and the actuator 14 are turned off by the signal of the sensor 23, the translational movement is stopped by the head head 4. Then the telescopic drive 17 is activated by the signal of the sensor 23 and the movement mechanism 2 together with the fast head 4 are informed down. In this case, the agile head 4 will move along the galev 26 to its eye 32, which will enter the gap 7 from the bottom to the stop with the upper end of the plug 22 (Fig. 6).

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In this position, the eye 32 will be aligned with the holes P on the cheeks 5. 6 of the head and with the thread 31 laid between them. The vacuum device 11 is then turned on and the thread 31 is pneumatically rotated into the eye 32 of the gale. After that, the reversible drives 17, 14 and the sampling mechanism 2 with the thread-cutting head 4 are sequentially actuated and returned to their original position.

Claims (2)

1. A device for automatically sifting through a dangling main yarn in galevo on a weaving machine, comprising a carriage mounted with the possibility of reciprocating movement along a guide across the weaving machine along galevs, characterized in that, in order to increase productivity, the carriage is equipped with a threading head mounted with the possibility of reciprocating movement in the direction of the crib and vertical movement along galey and made in the form of two cheeks placed with a gap and provided with a galey position sensor, the cheeks have a horizontally aligned coaxial channel located perpendicular to the plane of the gap, one of the channels being pneumatically connected to a source of high pressure gas, and the other from the nodes 2. The device according to claim 1, wherein the threading head is provided with a limiter for the entry of the galev into the gap and sensors for the entry of the galev and the end position of the limiter. L -G -I - I -1 J J  Fi 2.5