FI56989C - ANORDNING FOER REGLERING AV BANORS LOPP - Google Patents

Description

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Patent and Registration Office .... , .. , , . ,. ,,, _. ,. (44) Date of issue of the competition. - οη ηΊ οπ

Patent- oeh registerstyrelsan v 'Antitkin utitgd och uti. * Kriftm pubikarad 31.01. Ö0 (32) (33) (31) Requested * brings * u * —Begird prlorltat 18.09 · 73

Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) P 23 ^ 6821.5-22 (71) J.M. Voith GmbH, Heidenheim / Brenz, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (72) Gerd Russmann, Heidenheim, Hans Fauser, Heidenheim, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (7M Oy Kolster Ab (5 * 0 - Anordning för regiering av banors vég

The invention relates to a device for controlling the movement of tracks, in particular wires, felts, etc., by means of a track edge sensor, i.e. a sensor, which operates a liquid jet which comes out of the nozzle and goes to a receiving nozzle which converts the jet energy into static pressure *

German patent 747 717 discloses a two-sensor device in which the liquid entering the receiving nozzle is led to the second horizontal cup of the balance. Two spray nozzles are fixedly connected to this scale, each of which, depending on the position of the scale, sprays one onto the impeller in order to rotate it. As the impeller rotates, the wire guide roller is moved * This known device is quite complex and susceptible to interference and requires very long connecting cables from the receiving nozzles to the horizontal, especially on wide machines. As a result, the adjustment is rather slow, which is why it can be used in high-speed machines.

German patent 1008 106 discloses another device of the type described, in which two sensors operating with liquid jets are arranged on one side of the track and are placed in a common structural part. If the edge of the track is located between these two jets of liquid, then no adjustment will take place. Only when both showers have been interrupted or allowed to flow freely will the movement of the track be adjusted to 2,56989. As a result, the track can move back and forth corresponding to the distance between the two jets. For short and very fast running wires, this unregulated reciprocating motion cannot be tolerated. However, this cannot be eliminated with this known device.

It is true that German device 960 956 discloses a device which mechanically senses the edge of the track and is thus, at least in theory, capable of immediately adjusting out any deviation. But even this device cannot be used in high-speed wires, etc. because the track can be heard well, strongly at high speeds due to the mechanical abrasion of the sensor.

The object of the invention is to provide a device of the type mentioned above, which is capable of precisely controlling even very fast-running tracks without the indicated disadvantages.

According to the invention, this object is achieved in that the outlet nozzle and the receiving nozzle are attached to a common holder which moves transversely to the direction of travel of the track, which is acted upon by the pressure generated in the receiving nozzle and the return spring opposing it.

The return spring is then so adapted or tuned to the pressure generated in the receiving nozzle that when the track cuts the liquid jet, the pressure generated by the partial jet keeps the holder straight with the traction force of the return spring. Joe's trajectory now moves from this equilibrium position in the direction of the jet, then the jet is covered more, causing the pressure to drop at the same time.

If, on the other hand, the path moves away from the liquid jet, then the jet goes completely into the receiving nozzle, as a result of which the pressure increases.

As a result, the holder is pressed against the force of the return spring in the direction of the path until the liquid jet touches the path again and a balance of forces acting on the pivot lever is reached. According to the invention, either a variable pressure or a stroke, i.e. a rotation, of the holder can be used to adjust the hundred (transverse) movements.

This device provides an adjustment whose adjustable quantity is proportional to the movement of the track. In other words, the greater the motion of the track, the greater the return quantity acting on the track. With known track-saving control devices, in which no mechanical sensing of the track takes place, such adjustment cannot be achieved.

Three embodiments of the invention are shown in the drawing, in which Fig. 1 shows a moving track sensor, i.e. a sensor with an outlet nozzle and a receiving nozzle attached to a common pivot lever, Fig. 2 shows a schematic diagram of a control device using pressure changes in the sensor 5 shows a schematic diagram of a second adjusting device that uses the rotation of a pivot lever to adjust a wire guide roll.

5,56983

In Fig. 1, the wire stripe marked with the number 1 is next to the edge of which a sensor is placed. The sensor has a water outlet nozzle 2, which is placed at the end of the water supply pipe 3 and from which the water jet 4 leaves vertically downwards. The water jet 4 enters a receiving nozzle 3 · located below the outlet nozzle 2 · located at one end of the line 6 · »The other end of the line 6 is connected to a pressure box 7 * The palm box 7 rests on a fixed wall Θ and acts on a pivot lever 9 to which the outlet nozzle 2 and receiving nozzle 5 are fixed. The pivot lever 9 is also acted upon by a return spring 10, which is a tension spring and is fixed to the wall illa by an adjusting screw 11 to fine-tune its traction.

Fig. 2 shows an embodiment in which the pressure changes generated by the movement of the wire in the sensor are fed to the control device. The pressure is converted in the pressure measuring element 12 to a normalized signal value and then fed to the controller. The output signal of this regulator acts on the positioning member 14, which in turn pressures the other side of the actuator cylinder 13 according to the variable to be adjusted. The operating cylinder moves the wire guide roller 16, which controls the movement of the wire. The displacement of the wire guide roll 16 is also fed back to the positioning member 14 via the connected lever 17 of the operating cylinder, so that the feedback of the control circuit is obtained.

In the embodiment of Fig. 3, the pivot lever 9 of the sensing device, i.e. the sensor, is extended (downwards from the support point. This extension part 9 'of the pivot lever 9 is connected to a control valve 18 with two inlet lines 19 and 20 and one outlet line 21. The wire guide roller 16 is guided here by two air cylinders 22 air supply lines 24 and 23, each of which is conducted through an air power amplifier 23. A pre-choke 26 is provided in each air supply line 26. Both air supply lines 24 and 23 branch from the main line 27.

Between the pre-chokes 26 and the air power amplifiers 23 there is a line 19 connected to the air supply line 24 and a line 20 to the air supply line 23. These lines 19 and 20 are connected to the control valve 18.

Depending on the respective position of the control valve 18, the air entering the lines 24 and 23 from the main line 27 leaves the air supply via the exhaust line 21. This develops a pressure on the closed side which drives the cylinder 22 via the respective air power generator 23. In the central position shown in the control valve 18, air is discharged uniformly from both lines, so that there is no movement of the wire guide roll 16.

As the wire 1 moves away from the sensor, an increasingly larger cross-section of the water jet pre-cut by the wire enters the receiving nozzle, as a result of which the pressure rises in this nozzle and thus also in the pressure box. Since there has previously been a balance between the palm box and the force of the spring, the pivot lever is now pressed towards the wire. Only when the wire between the force of the spring is now pushed the pivot lever towards the wire. Since, the force of the return spring increases as it lengthens, the force of the pressure box must also increase. The equilibrium state is therefore formed when the jet is slightly cut.

During the monitoring movement of the sensor, the increasing pressure is used in the embodiment according to Fig. 2 to move the wire guide roll. In this case, the higher the pressure rise, the greater its displacement.

In the exemplary embodiment of Fig. 5, on the other hand, during the tracking movement of the pivot lever, an impact (pivot) is used to move the wire guide roll.

As a result, the wire returns to its initial position, whereby the water jet is covered.

The pressure drops in the receiving nozzle and in the pressure gutter, so that the return spring retracts the pivot lever until a balance of forces occurs again - when the water jet is partially allowed to flow freely.

Claims (3)

5 SÖ989 A device for controlling the movement of tracks, in particular wires, felts, etc., by a track edge sensor acting as a liquid jet coming out of a nozzle and discharging into a receiving nozzle which converts the liquid jet flow energy into static pressure, characterized in that the outlet nozzle (2) (5) is attached to a common holder (9) moving transversely to the direction of travel of the track, which is acted upon by the pressure generated in the receiving nozzle (5) and the return spring (10) opposing it. 2. A device according to claim 1, characterized in that the holder is formed on the pivoting lever (9) · 3 # claimed in claim 1 or 2, the device according to, characterized in that the developed vastaanottosuuttimessa (3), pressure acts on the pressure outlet (7), a second fixed side supported and on the other side acts on the movable holder (pivoting lever) (9) · Device according to one of the preceding claims, intended to influence the movement of the track with a guide roller, characterized in that the change in pressure acting on the holder (pivot lever) (9) is used to move the guide roller (16). Device according to claim 1, 2 or 3 for influencing the movement of the track with a guide roller, characterized in that the impact (turning) of the holder (pivot lever) (9) due to the change in pressure exerted on it is used to move the guide roller (16).