SU1513048A1 - Apparatus for monitoring the pick of microinserter of loom to brake blocks of receiving box - Google Patents

Abstract

The invention relates to textile machinery, to devices for controlling the passage of a micro-laying machine of weaving looms into the brake pads of the receiving box, and allows increasing the reliability of their operation and simplifying their design. In an inductive electromagnetic sensor, both pole tips are brought into the center of the gap between the weft yarn clamp 11 and the jaw opener 12 of the jaws of the microprojector 13, where their width is no more than 0.3 times the distance E, and are offset from the path of the microprojector with a gap equal to 0, 05 to 0.2 magnitude of the gap E. In this case, both ends of the pole pieces are bent towards each other so that they form a gap between themselves equal to 0.2 to 0.4 times the gap E, and the thickness of the ends of the pole tips is from 0.8 up to 1.2 gap values. 3 il.

Description

one

(89) CS / 256271

(21) 7774382 / 30-12 (48) .30.12.87

(22) 12/17/86

(31) PV 529-86

(32) 01/24/86

(33) CS

(46) 10/07/89. Bksh. Number 37

(71) Stats abound statute textiles (CS)

(72) Jan Pirko, Otakar Novotny and Jaroslav Manl (CS)

(53) 677.054.757 (088.8)

(54) DEVICE FOR THE CONTROL OF THE FLIGHT OF THE MICROPACKER TKETSKY MACHINE IN THE BRAKE PADS OF THE RECEIVING BOX (57)

/ looms into the brake pads of the receiving box and improves the reliability of their work and simplify their design. At the induction electromagnetic sensor both pole tips are inserted in the center of the gap

 between the weft yarn clamp 11 and the opener 12 of the clamping jaws of the microprocessor 13, where their width is no more than 0.3 times the distance E, and offset from the path of the microprojector with a gap equal to 0.05 to 0.2 times the distance E In this case, both ends of the pole pieces are bent towards each other so that they form a gap between themselves equal to 0.2 to 0.4 times the gap E, and the ends of the pole ends are 0.8 to T, 2 the gap widths. 3 il.

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The known devices for controlling the microprojector's flight on the loom in the space beyond the throat require for their proper functioning a limitation on the observation interval for passing the weft in the throat. The observation interval is limited either by the starting sensor signal and its delay time, or by the signals of the two starting sensor and the span. In the first case, the weft thread is observed after launching the microprojector up to a certain point corresponding to the distance of the microprojector over the rear edge of the fabric. In another case, the weft thread is observed after the microprocessor starts.

until the moment of its passage over the sensor placed near the edge of the fabric, the signal must be delayed for the expected time of the microprojector's run behind the rear edge of the fabric so that the weft is observed to the very rear edge of the fabric (German Patent No. 3110462, cl. D 03 D 51 / 34,1982). Transmittance sensors are known, where in addition to the contact, optical, and electromotive principles, an induction coil and a permanent mag- num are used. nit. A coil serving as a voltage source is wound on a permanent magnet, which forms one pole tip, and the second

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pole piece formed by the receiving box. The change in the magnetic field caused by the microplayer.

passing over a permanent magnetically shielded cable 6 for dalt in the receiving box, induces a voltage in the coil, which is information about the passage of the microprojector (Swiss Patent No. 469839, cl. D 03 D 49/00, 1969).

However, the operation of the sensor depends on the receiving box, which in some cases is disadvantageous because the sensor cannot work independently and, moreover, it also records the mechanisms of the weaving machine moving around it.

The purpose of the invention is to increase reliability in operation and simplify the design.

FIG. 1 shows the device, a general view; in fig. 2 - induction electromagnetic sensor, longitudinal

20, the tips 3 of which are inserted into the gap E between the clamp 11 and the opener 12. The gap E is determined by the distance between the opening 18 for the opener 12 and the rear edge 19 of the mix; in fig. 3 - the same kind of sideways.

Electromagnetic induction datas 25 roggers. The tick is formed by a coil 1 wound. With this sensor design, for example, a permanent magnet 2, which is induced only as a result of the pole tips 3, from the height of the microprojector 13, and others, F, with thickness C and a gap surrounding them. mechanisms do not affect it

And between their ends. The entire system, with the exception of the ends of the pole pieces 3, is inserted into the non-magnetic tube 4 and fixed here with a casting weight of 5. 5. A two-core shielded cable 6 is output from the coil 1. The non-magnetic tube 4 is fixed with noMOjip rod 7 on the holder 8, which for attaching the induction electromagnetic sensor 9 to the receiving box 10.

At the induction electromagnetic sensor 9, both pole tips 3 are brought into the center of the gap E between the weft thread terminal 11 and the opening 30 functioning.

Claims (1)

Invention Formula The device for controlling the span of a micro 35 weaver's loader in the brake pads of the receiving box, containing a weft yarn clamp installed on the receiving box on the side of the weft-fighting mechanism, an opening of the microplotter gripper jaws - and an inductive - 1 electromagnetic solenoid of the microplotter span, and the distance; The distance between the clamp and the breaker is determined by the distance from the back of the back of the 12 clamping jaws of the microprojector 15 of the edge of the microprojector to its distance from 13, where their width D is equal to the maximum vertex for the opening of the clamping to 0.3 times the distance E, and the side that is different is different. topics from the trajectory of the span 14 of the microprojector 13 with a gap B from 0.05 to 0.2 times the magnitude of the gap E, while the ends of the pole tips are bent towards each other so that they form a gap A between 0.2 and 0.4 the gap E, and the thickness C of the ends of the pole tips are from 0.8 to 1.2 times the size of gap A. Microplayer 13, which during operation of the device, flies over pole tips 3, causes a change in the magnetic field in the coil, as a result of which induces a voltage that is output by means of two-core processing in the unexposed data processing device. At the same time, the entire device is in close proximity to the pharynx the main threads 15 and batana 16. The microplayer 13 in the final position is clamped by brake pads 17 fixed on the receiving box 10, on which others are also riveted. mechanisms, such as clamp 11 and opener 12. Here, with the help of holder 8, induction electromagnetic sensor 9 with two-core shielded cable is strengthened.6 pole poles tips 3 of which are inserted into the gap E between the clamp 11 and the opener 12. The gap E is determined by the distance between the opening 18 for the opener 12 and the trailing edge 19 mic30 functioning. Invention Formula The device for controlling the span of the micro 35 weaver's loader in order to increase reliability and simplify the design, both poles of the sensor are designed as a tip and are located centrally between the weft yarn clamp and the jaw opener and are offset from the distance path of the microplayer. The distance between the clamp and the opener, and the width of the pole pieces, is no more than 0.3 times the distance between the clamp and the splitter. 51513048 tips are bent about to the other with their ends, equal to 0.2 - 0.4 75 oooh eleven work with me sixteen 2. Editor N.Lazarenko Compiled by Tehred M. Didyk the distance between the clamp and the opener, and the tip ends are 0.8 to 1.2 times the width of the gap between them. g "7 f1 / g. eight FirFTfrl LJl | Ilj III tl. 3) Fig.Z Proofreader N.Korol