EP3375742B1 - Textile machine with a plurality of spinning or winding positions and method for operating the textile machine - Google Patents

Description

The present invention relates to a textile machine with a plurality of spinning or winding stations, the spinning or winding stations and / or the textile machine, d. H. Sections that are not directly assigned to one of the spinning or winding stations, such as a cover of a drive head, comprise at least one component that is movable between at least two layers. Furthermore, the textile machine comprises at least one sensor unit, with the aid of which a position and / or movement of the component can be detected. The invention also relates to a method for operating the textile machine.

From the DE 101 37 081 A1 a textile machine with sensors arranged at processing points is known, with the aid of the sensors an end position of components of the processing points can be detected. The disadvantage of the sensors is that no position or movement between the positions can be detected with them.

The object of the present invention is therefore to remedy this disadvantage of the prior art.

The object is achieved by a textile machine and a method for its operation with the features of the independent patent claims.

A textile machine with a large number of spinning or winding stations is proposed, the spinning or winding station and / or the textile machine comprising at least one component which can be moved between at least two layers. The construction elements can be the most varied of components of the textile machine. For example, the component by a Housing or a housing part (for example a rotor cover) of a rotor spinning unit, a thread catching device and / or a bobbin holder can be formed. These components can be moved between at least two layers, with z. B. the housing or the housing parts of the rotor spinning unit pivoted or moved linearly, the thread catching device or the bobbin holder can usually be pivoted. Comparable to this, an air-jet spinning machine can also comprise components mounted in a correspondingly movable manner, such as in particular the air-jet spinning nozzle, which can be opened for cleaning.

The at least two layers of the component are at least one position in which the section comprising the component, in particular the corresponding winding or spinning station of the textile machine, is operated normally. For example, the housing or the housing part of the rotor spinning unit is closed during normal operation so that it can spin a thread, or the bobbin holder is in a position in which the thread can be wound onto the tube located therein. In at least one other position, however, operation of the corresponding section is not possible, since, for example, the housing or the housing part of the rotor spinning unit is open and therefore no thread can be produced.

If, for example, the housing or the housing part of the spinning unit of a rotor or air-jet spinning machine is open, a route of a maintenance device can also be blocked. As a result, there is a risk of the maintenance device colliding with the component, which is to be prevented.

In addition, the component can have further layers. For example, the housing can be used as a component for maintenance manually by a Maintenance personnel are opened. If, after maintenance, the housing was not completely closed, but still opened slightly, this can also represent a position of the component.

In order to be able to detect a position and / or a movement of the component, the textile machine comprises at least the named sensor unit.

According to the invention, the sensor unit comprises an inertial measuring unit for detecting the change in position and / or movement of the component. A size and a direction of the change in position and / or movement are also recorded. A change in position can be, for example, a change in the orientation if the component rotates, for example, about at least one pivot point. The component can, however, additionally or alternatively also be shifted in a translatory manner, for example if the corresponding, z. B. designed as a housing cover, the component is moved to open. The change in movement includes, for example, accelerations, such as braking and / or an increase in speed, such as occur, for example, in a traversing device.

The inertial measuring unit can be used to determine the position and the movement of the component between the at least two positions by integrating the change in movement twice. By simply integrating the change in position, a position between the two positions can also be determined, which in this case represent end positions. This also requires two initial conditions, which include the initial position and the initial movement of the component. However, these can be known relatively simply because the component is in a known initial or starting position (for example when the component encompasses the housing of the rotor spinning unit and is initially closed) and thus initially also remains in a position in which there is no movement. This can change the position and / or movement of the component can be determined at any time between the respective end positions, which would not be possible, for example, with a simple contact switch. Each position and / or movement of the component can now be recognized by the inertial measuring unit. For example, it is possible to detect incomplete closing of the housing of the spinning station. Thereupon, for example, a corresponding notification can be given to the maintenance staff or a control that the housing is not closed and the spinning station is not yet functional.

In an advantageous development of the invention, the inertial measuring unit comprises a rotation rate sensor. The rotation rate sensor can be designed, for example, as a laser gyro or as a fiber gyro, in which an angular velocity and / or an angular acceleration about an axis can be measured with the aid of a laser. By measuring with the aid of the laser, the yaw rate sensor can also be designed without moving parts, so that it has a robust structure. A measurement of the angular velocity and / or acceleration about an axis can be sufficient, for example, if the component can only rotate about a pivot point. With the help of the rotation rate sensor, rotations around two or all three spatial axes can also be measured. For this purpose, the yaw rate sensor can have, for example, two or three fiber or laser gyros that are perpendicular to one another.

Additionally or alternatively, the inertial measuring unit can also comprise a gyroscope sensor. In the gyroscope sensor, for example, a gyroscope can rotate and an orientation of the inertial measuring unit in space can be measured with it. In this way, for example, rotations of the component around different axes can be measured.

Likewise, in addition or as an alternative, the inertial measuring unit can also comprise a sensor for measuring linear accelerations. With the aid of such a sensor, translational displacements can be measured in at least one of the three spatial directions of the component.

The inertial measuring unit comprises at least one MEMS element (MEMS = MicroElectroMechanical System). Since MEMS elements have sizes in the micrometer to millimeter range, the inertial measuring unit can be made particularly small, so that attaching the sensor unit to the component is unproblematic. In addition, the MEMS elements have a low energy consumption, so that this is essentially negligible when dimensioning the energy supply of the textile machine. Furthermore, the MEMS elements directly generate an electrical voltage signal during the measurement, which can be passed on for analysis.

It is also advantageous if the sensor unit is arranged at the spinning station. The sensor unit can also be arranged directly on the component. The sensor unit can be arranged on the component which moves with it in order to directly measure the movement of the component between the at least two layers. This enables particularly precise detection of the change in position and / or movement of the component.

Furthermore, it is advantageous if the component is designed as a coil arm holding a coil, at least one sensor unit being arranged on the coil arm and / or on the coil. The thread produced by the spinning station is wound onto the bobbin, the bobbin being held rotatably by the bobbin arm. Likewise, the bobbin and the bobbin arm can of course also be arranged in a winding station. The sensor unit on the coil arm can, for example, detect a hopping of the coil while it is rotating. Hopping can be generated, for example, if the coil is unbalanced. By hopping the thread can no longer be neatly wound onto the bobbin or a bearing of the bobbin arm can be damaged.

Alternatively, the sensor unit can also be arranged on the coil, so that the sensor unit rotates with the coil. In this way, for example, a speed of the coil can be measured directly.

In addition, a sensor unit can also be arranged on the coil and on the coil arm so that, for example, the rotation of the coil and the pivoting of the coil arm can be measured.

Furthermore, a diameter of the coil can also be calculated with the aid of the sensor unit on the coil arm. When the thread is wound onto the bobbin, its diameter increases steadily, with the bobbin arm being pivoted as a result. The change in orientation during the pivoting of the coil arm can be detected with the aid of the sensor unit. From this, the change in the diameter of the coil can be calculated, from which conclusions can be drawn about the current diameter. In this way, for example, the point in time can be determined when the bobbin is full and has to be changed.

It is also advantageous if the textile machine and / or the spinning or winding station comprises a unit, the unit being arranged on the component and the sensor unit being arranged in the area or in a housing of the unit. The unit can be designed, for example, as an actuator and / or a further sensor. Additionally or alternatively, the unit can also be designed as a thread monitor, with the aid of which it can be recognized whether the thread is being guided through the spinning or winding station. If the sensor unit is arranged, for example, in the area of the thread monitor or in its housing (or on its housing), the measured values of the sensor unit can be transmitted via its data line in addition to the data of the thread monitor.

This saves an extra data line for the sensor unit and the sensor unit can, for example, be easily retrofitted.

It is also advantageous if the sensor unit is arranged in the area of a pivot point of a component that can be rotated or pivoted between the two positions. The sensor unit can include, for example, the rotation rate sensor or the gyroscope. In the area of the pivot point, a change in the angle of rotation and / or the angular speed of the component can be measured with a high resolution. Such a further development of the invention can be implemented, for example, if the sensor unit, due to its design, can only be arranged in the area of the pivot point.

It is also advantageous if the sensor unit is arranged on the rotatable or pivotable component in an area spaced from the pivot point. The sensor unit can for example comprise the sensor for measuring linear accelerations. In addition, the sensor unit can also be arranged on the component in an area opposite the pivot point or in an area at least spaced apart from the pivot point. As a result of the spacing from the pivot point, the lever movement converts the turning or pivoting of the component into a translational movement, this translational movement being able to be measured by the sensor for measuring linear accelerations. In this way, for example, particularly small rotational or pivoting movements can be measured, since these are amplified by the length of the component to a larger movement of the sensor unit.

In an advantageous further development of the invention, the textile machine comprises a controller connected to the sensor unit, which is designed to generate an alarm (optical and / or acoustic or via a remote device) based on the change in position and / or the change in movement of the component z. B. a smartphone) and / or to stop the maintenance device moving along the spinning and / or winding stations and / or to shut down the spinning and / or winding station. The controller can further include, for example, a processor for calculating the change in position and / or movement from the measurements of the sensor unit (s). In order to stop the spinning and / or winding station, for example, it is connected to actuators of the spinning and / or winding station. In addition, the control can also receive information about the position at which the maintenance device is located along the spinning and / or winding stations. The control can then decide, depending on a distance between the spinning or winding stations and the maintenance device, whether the maintenance device must be stopped when a component of one or more spinning or winding stations protrudes into the path of the maintenance device.

It is also advantageous if the spinning and / or winding station has an actuator with the aid of which the component can be moved between the two layers. The actuator can also be connected to the controller so that when it detects that the component is in the path of the maintenance facility, it can cause the component to be moved with the aid of the actuator into a position in which the maintenance facility can pass unhindered.

The invention also relates to a method for operating a textile machine with a plurality of spinning or winding stations, the spinning or winding stations and / or one or more other sections of the textile machine comprising at least one component that can be moved back and forth between at least two layers . One or more features according to the preceding and / or following description can be implemented in the textile machine. The textile machine also includes a sensor unit, with the aid of which a change in position and / or movement of the component is monitored. With the help of the sensor unit, a Size and direction of the change in position and / or movement is monitored. According to the invention, the sensor unit comprises an inertial measuring unit which comprises at least one MEMS element.

The component can, for example, be a housing of a rotor or air-jet spinning unit or a part of the same, which is opened for maintenance or cleaning. The housing can for example be pivoted or pulled away from the spinning unit. If the component still closes the spinning unit, it is, for example, in a first position. When the component is open for maintenance or cleaning, in particular completely, it is in a second position. Furthermore, the component can be arranged in the second layer, for example, in such a way that it crosses a travel path of a maintenance device traveling along the spinning stations. If the maintenance device collides with the component, damage can be caused both to the maintenance device and to the component, which of course must be avoided. The position of the component is therefore monitored with the aid of a sensor unit, for example to prevent a collision.

A position between the first and second position can also be monitored with the sensor unit. For example, the component can be located between the two layers, but still allow the maintenance facility to drive past. This intermediate layer can be recognized and it can be concluded from this that the collision of the maintenance device with the component does not take place. The maintenance facility therefore does not have to be stopped.

Furthermore, it is advantageous if the textile machine comprises a controller connected to the sensor unit, which, based on the measured position and / or movement of the component, can cause an alarm to be issued and / or the maintenance device moving along the spinning or winding stations to be stopped and / or the spinning or winding station stopped becomes. The alarm can be issued, for example, to make maintenance personnel aware of a specific position and / or movement of the component. The alarm can be given, for example, if the component does not completely close the spinning unit and z. B. the negative pressure inside the spinning unit cannot be built up.

For safety reasons, for example, the moving maintenance device can also be stopped in order to avoid a collision with the component projecting into the route.

Also for safety reasons, the spinning and / or winding station can be shut down in order to carry out an emergency stop. If, for example, the maintenance personnel carelessly opens the housing during spinning, the change in movement, namely the acceleration of the sensor unit, and its direction can be detected with the aid of the sensor unit. In order to avoid injury to the maintenance staff, the emergency stop of the spinning unit can then be triggered.

In an advantageous further development of the method, a current position and / or movement of the component is calculated by analyzing the change in position and / or movement. The analysis can also include, for example, adding up or integrating the changes in position and / or movement. This method step can advantageously be carried out by the controller. By precisely calculating the position and / or the movement of the component, the productivity of the textile machine can be increased. For example, the maintenance device moving along the spinning or winding stations does not have to be stopped when the control calculates that the component is not in the intended position, but neither is it in the travel path of the maintenance device protrudes. The maintenance device can then drive past the component in order to carry out maintenance activities at another spinning or winding station.

In order to avoid damage, it is advantageous if, based on the measured position and / or movement, the control causes an actuator arranged at the spinning or winding station to move the component from one position to the other position. If, for example, the component protrudes into the route of the maintenance facility, the actuator can at least briefly pivot, rotate or pull the component out of the route to avoid a collision. The actuator can also close the component if it is, for example, the housing of the spinning unit.

Figur 1

eine schematische Draufsicht einer Textilmaschine mit einer Vielzahl an Spinnstellen,

Figur 2

einen Ausschnitt einer Spinnstelle mit einem schwenkbaren Bauelement,

Figur 3

eine schematische Ansicht einer fadenproduzierenden Spinnstelle, wobei der Faden auf eine Spule aufgewickelt wird und

Figur 4

eine schematische Ansicht der Spinnstelle gemäß Figur 3 mit aufgeschwenktem Bauelement.

Further advantages of the invention are described in the following exemplary embodiments. Show it:

Figure 1

a schematic top view of a textile machine with a large number of spinning positions,

Figure 2

a section of a spinning station with a pivotable component,

Figure 3

a schematic view of a thread-producing spinning station, the thread being wound onto a bobbin and

Figure 4

a schematic view of the spinning station according to Figure 3 with the component swung open.

Figure 1 shows a schematic top view of a textile machine 1 with a large number of spinning stations 2 shown in the same way, with only a single spinning station 2 being provided with a reference number for the sake of simplicity. The Spinning positions 2 can all be of the same design. Instead of the spinning stations 2, the textile machine can also have winding stations.

The textile machine 1 also has a component 3 which, in the present exemplary embodiment, is arranged at the spinning station 2 and can be moved back and forth between at least two layers. In the present exemplary embodiment, the component 3 can proceed from a first layer 4 (see also FIG Figure 2 ) are rotated or pivoted in a second position 5 shown here in the direction of rotation DR. In the first layer 4, for example, the component 3 can be aligned with the spinning stations 2. The component 3 can be formed, for example, by a housing of the (rotor or air) spinning station 2 or a portion of the same or a thread catching device or a bobbin holder, these being only examples of movable components 3 within the meaning of the invention.

Furthermore, in this exemplary embodiment, the textile machine 1 comprises a maintenance device 7 which can move on or on a running rail 8 along the spinning stations 2 in the direction of travel FR. For example, the spinning station 2 can be serviced and / or cleaned by means of the maintenance device 7.

It is problematic, among other things, if the component 3 is arranged in the second layer 5 shown here, since a collision with the moving maintenance device 7 and then damage to the component 3 and the maintenance device 7 can occur. An open component 3 also has other effects. For example, a component 3 designed as a housing seals off the spinning station 2, so that a negative pressure can be built up in the spinning station 2, which is important for the spinning process. The opened housing, however, is no longer sealed off the spinning station 2 and the spinning process is impaired.

Sensor units, not shown here, are therefore known in the prior art, which can detect a position of the component 3. A disadvantage of these sensor units, however, is that only the end positions of the component 3 (completely closed or completely open) can be detected.

According to the invention, the sensor unit 6 (cf. Figure 2 ) of the textile machine 1, on the other hand, has an inertial measuring unit for detecting the change in position and / or movement of the component 3. The inertial measuring unit also records a variable (= an amount) and a direction of the change in position and / or movement. A position and / or movement between the two positions 4, 5 can also be recognized with the aid of the inertial measuring unit. The component 3 can, for example, have a position in which the maintenance device 7 can drive past the component 3, but the component 3 as a housing does not completely close the spinning station 2.

With the help of the inertial measuring unit it can also be recognized, for example, that the component 3 is moving from the second layer 5 in the direction of the first layer 4 and that the movement, in particular the speed of the movement, is sufficient that the maintenance facility 7 passing by is no longer with the Component 3 collides because it is then rotated sufficiently far in the direction of the first layer 4.

Furthermore, the inertial measuring unit can also measure the change in movement, in particular the acceleration, of the component 3, so that it can also be calculated when the maintenance device 7 is safely driving past the component 3.

Figure 2 shows in this embodiment a section of a spinning station 2 with a pivotable component 3. The component 3 is designed as a rotor lid in this embodiment. In this exemplary embodiment, a thread 12 is spun in a rotor 11 in the spinning station 2. For this purpose, the rotor 11 is set in rotation via a rotor shaft 15, rotating in the rotor housing 16. The spun thread 12 is withdrawn via a withdrawal tube 17 and wound onto a spool, not shown here. The rotor 11 rotates in a rotor chamber 13 to which a negative pressure is applied during the spinning of the thread 12. The rotor chamber 13 is closed by the pivotable component 3 and the two seals 14, so that the negative pressure can be created.

Since the negative pressure is important for the spinning of the thread 12, the component 3 must seal the rotor chamber 13 in this exemplary embodiment. For this purpose, the component 3 must be arranged in the first position 4 so that it seals the rotor chamber 13 with the seals 14.

In order to be able to detect a change in position and / or movement of the component 3, the sensor unit 6, which has an inertial measuring unit, is arranged in the region of the pivot point 9 of the component 3. The inertial measuring unit can measure accelerations and rotation rates as well as changes in the rotation rates, from which a current position and / or movement of the component 3 can be calculated by integration. With the aid of the inertial measuring unit, not only can the two layers 4, 5 be recognized, but also all the layers and / or movements between them and their changes. For example, it can be recognized if the component 3 accelerates as a result of the opening, so that, for example, an emergency stop of the spinning station 2 can be triggered if the rotor chamber 13 is accidentally opened during the spinning process.

The inertial measuring unit can include, for example, a rotation rate sensor in order to detect a change in rotation and / or rotation as a change in position and / or movement of the component 3. The rotation rate sensor can be designed, for example, as a fiber or laser gyro. On In this way, the rotation rate and / or the rotation rate change of the sensor unit 6 can be measured, which is synonymous with the rotation rate and / or the rotation rate change of the component 3.

Additionally or alternatively, the inertial measuring unit can also comprise a gyroscope. A gyro can rotate therein, with the aid of which a change in orientation of the sensor unit 6 and thus of the component 3 in space can be measured.

Additionally or alternatively, the inertial measuring unit can also have a sensor for measuring linear accelerations. This can be arranged at the end 10 of the component 3 opposite the pivot point 9, so that the rotation of the component 3 at the end 10 is converted into a translational movement at least in the area of the first position 4.

Figure 3 shows a schematic view of a thread-producing spinning station 2, the thread 12 being wound onto a bobbin 19. In the following exemplary embodiment, an explanation of the features already discussed is dispensed with. The thread 12 is produced by first feeding a sliver from a can (not shown here) into an opening device 24. The opening device 24 produces individual fibers 23 from the sliver, which are guided to the rotor 11. In the rotor 11, the thread 12 is spun from the individual fibers 23. The thread 12 is diverted from the rotor 11, passed between a pair of delivery rollers 22 and guided via a deflection roller 25 to the bobbin 19 on which the thread 12 is wound.

The spool 19 is generally not driven by itself, but is set in rotation by means of a winding roller 20. For this purpose, the bobbin 19 rests on the winding roller 20, with the friction between the lateral surface 26 the spool 19 and the lateral surface 27 of the spool roller 20, the rotation of the spool roller 20 is transmitted to the spool 19.

In this exemplary embodiment, the coil 19 is rotatably arranged on a component 3a, the component 3a in this exemplary embodiment being formed by a coil arm. As more and more thread 12 is wound onto the bobbin 19, the radius R of the bobbin 19 increases. When the radius R increases, the component 3a also pivots away from the winding roller 20, which in this exemplary embodiment leads to the component 3a pivoting upward. When the component 3a is pivoted, an angle α also increases.

In order to be able to infer the radius R, a sensor unit 6a is arranged on the component 3a. By pivoting the component 3a as the radius R increases, the sensor unit 6a is rotated at the same time. An inertial measuring unit arranged in the sensor unit 6a can measure the pivoting and thus an increase in the angle α, with the radius R of the coil 20 being able to be calculated from this measurement. This is advantageous, among other things, because a coil replacement can be planned on the basis of this data.

The inertial measuring unit arranged in the sensor unit 6a can measure a change in the angle α by measuring an acceleration of the component 3a. The sensor unit 6a can thus measure, for example, the speed at which the component 3a moves away from the winding roller 20 as the radius R increases. As a result, the change in angle and from this the current angle α of component 3a can be determined. Additionally or alternatively, the sensor unit 6a can also measure a change in orientation of the component 3a. The angle α can thereby be determined directly.

Another advantage of the sensor unit 6a on the component 3a is that vibrations of the component 3a can be measured. If, for example, the outer surface 26 of the coil 19 has a circumference deviating from the circular shape, or if the coil 19 is unbalanced, the coil 19 begins to hop on the winding roller 20, which leads to said vibrations. These vibrations can lead to damage to the bearings of the component 3 a or to an uneven winding of the thread 12 on the bobbin 19. Both are disadvantageous for the productivity of the spinning station 2.

The measurement and / or the detection of vibrations with the aid of the sensor unit 6 is of course not restricted to the exemplary embodiment described here. With the aid of the sensor unit 6, of course, vibrations on other motors, actuators and / or other rotating and / or pivoting components can also be measured.

With the aid of the measurement of a possible vibration of the coil 19, damping of the component 3a, which is designed here as a coil arm, can also advantageously be set. The damping can be regulated and / or controlled as a function of the vibrations, so that the damping is always set so strongly that the vibrations are suppressed.

With the aid of the sensor unit 6a on the component 3a, an orientation of an axis of rotation 28 of the coil 19 can also be detected. In particular, there is thus the possibility of measuring the orientation of the axis of rotation 28 to measure the position in relation to an axis of rotation 29 of the winding roller 20. In order to be able to drive the bobbin 19 with the bobbin roller 20, it is advantageous if the axis of rotation 28 of the bobbin 19 and the axis of rotation 29 of the bobbin roller 20 are aligned parallel to one another. A non-parallelism between the axis of rotation 28 and the axis of rotation 29 means that the lateral surfaces 26, 27 of the bobbin 19 and the winding roller 20 only touch in sections, so that the bobbin 19 can deform. In particular, there is a risk that the coil 19 will differ from the circular cross-section deformed away, so that imbalances are formed that lead to the vibrations described above. The bobbin 19 begins to hop on the bobbin roller 20, so that the winding process is impaired.

Additionally or alternatively, the sensor unit 6a can also comprise a Hall sensor, with the aid of which a speed of the coil 19 can be detected. For this purpose, the coil 19 can, for example, have a magnet that rotates with the coil 19. When the magnet moves past the Hall sensor, a signal is registered. The speed then depends on the frequency at which the signal occurs.

Furthermore, the above-mentioned pair of delivery rollers 22 and the deflection roller 25 are arranged on a further component 3b in this exemplary embodiment. The component 3b comprises elements required for the transport and / or maintenance of the thread 12, for example. For example, the component 3b comprises a thread suction device, not shown here, with the aid of which a thread end can be sucked in for re-spinning in the event of a thread break. In this exemplary embodiment, a thread monitor 21 is also arranged on the component 3b, with the aid of which it can be recognized whether the thread 12 is being delivered to the bobbin 19. In particular, with the help of the thread monitor 21 it can be recognized whether, for example, the thread 12 has broken and thereupon emit a corresponding signal.

In this exemplary embodiment, a further sensor unit 6b is arranged in the area of the thread monitor 21. The sensor unit 6b can for example also be arranged in a housing of the thread monitor 21. The arrangement of the sensor unit 6b in the area of the thread monitor 21 (or with this in its housing) is advantageous because it means that an additional data line for the sensor unit 6b can be dispensed with. The measurement data of the sensor unit 6b can additionally be passed to the controller 18 via the data line of the thread monitor 21 (not shown here).

Figure 4 shows the spinning position of the Figure 3 with a pivoted component 3b. The rotor 11, for example, can be serviced or cleaned by the swiveled-open component 3b. By pivoting the component 3b open, the sensor unit 6b is also pivoted in particular. The inertial measuring unit arranged in the sensor unit 6b makes it possible to detect a change in movement, in particular an acceleration and / or a speed, away from the remaining spinning station 2 or towards it. The current position of the component 3b can be calculated from this.

The calculation of the position of the component 3b is advantageous since the component 3b can protrude into the travel path of the maintenance device 7 in the pivoted-open position. This can lead to a collision between the maintenance device 7 and the component 3b.

Additionally or alternatively, a change in orientation of the component 3b can also be detected by the sensor unit 6b. If the sensor unit 6b comprises a gyroscope, for example, the change in the orientation, in particular the pivoting away, of the component 3b can be detected.

In this exemplary embodiment, the sensor unit 6b is also arranged on the thread monitor 21. Alternatively, the sensor unit 6b can also be integrated in the thread monitor 21. As a result, the measured values of the sensor unit 6b can also be transmitted via the data line of the thread monitor 21, so that a separate data line for the sensor unit 6b can be saved. The sensor unit 6b can thus also be easily retrofitted, for example. The data line, not shown here, leads to the controller 18.

The present invention is not restricted to the illustrated and described exemplary embodiments. Modifications within the scope of the claims are just as possible as a combination of the features, even if these are shown and described in different exemplary embodiments, provided that there is no contradiction to the teaching of the independent claims.

List of reference symbols

1

Textile machine

2

Spinning position

3

Component

4th

first layer of the component

5

second layer of the component

6th

Sensor unit

7th

Maintenance facility

8th

Runway

9

pivot point

10

End of the component

11

rotor

12

thread

13

Rotor chamber

14th

seal

15th

Rotor shaft

16

Rotor housing

17th

Drainage tube

18th

control

19th

Kitchen sink

20th

Winding roller

21st

Thread monitor

22nd

Delivery roller pair

23

Fibers

24

Opening device

25th

Pulley

26th

Outer surface of the coil

27

Outer surface of the winding roller

28

Axis of rotation of the coil

29

Axis of rotation of the winding roller

DR

Direction of rotation

FR

Direction of travel

α

angle

R.

radius

Claims (13)

1. A textile machine (1) having a plurality of spinning (2) or winding stations, the spinning (2) or winding stations and/or the textile machine (1) comprising at least one component (3) displaceable between at least two positions (4, 5), and the textile machine (1) comprising at least one sensor unit (6) by means of which a position (4, 5) and/or motion of the component (3) can be detected,
   characterized in that
   the sensor unit (6) comprises an inertial measurement unit for capturing a magnitude and a direction of the change in position and/or motion of the component (3), and that the inertial measurement unit comprises at least one MEMS element.
2. The textile machine (1) according to the preceding claim,
   characterized in that the inertial measuring unit comprises a rate of rotation sensor and/or a gyroscope sensor and/or a sensor for measuring linear accelerations.
3. The textile machine (1) according to any one or more of the preceding claims, characterized in that the sensor unit (6) is disposed on the spinning or winding station, preferably on said component (3).
4. The textile machine (1) according to any one or more of the preceding claims, characterized in that the component (3) is implemented as a bobbin arm holding a bobbin (19), wherein at least one sensor unit (6) is disposed on the bobbin arm and/or on the bobbin (19).
5. The textile machine (1) according to any one or more of the preceding claims, characterized in that the textile machine (1) and/or the spinning or winding station comprises a unit, particularly a thread monitor (21), an actuator, and/or a further sensor, wherein the unit is disposed on the component, and wherein the sensor unit (6) is disposed in the region or in a housing of the unit.
6. The textile machine (1) according to any one or more of the preceding claims, characterized in that the sensor unit (6), particularly the rate of rotation sensor, preferably the gyroscope, is disposed in the region of a center of rotation (9) of a component (3) rotatable or pivotable between the two positions (4, 5).
7. The textile machine (1) according to any one or more of the preceding claims, characterized in that the sensor unit (6), particularly the sensor for measuring linear accelerations, is disposed on the rotatable or pivotable component (3) in a region spaced apart from, preferably opposite, the center of rotation (9).
8. The textile machine (1) according to any one or more of the preceding claims, characterized in that the textile machine (1) comprises a controller (18) connected to the sensor unit (6) and implemented for emitting an alarm and/or for stopping a maintenance device (7) traveling along a spinning (2) and/or winding station and/or for stopping the spinning (2) and/or winding station due to the change in position and/or change in motion of the component (3).
9. The textile machine (1) according to any one or more of the preceding claims, characterized in that the spinning (2) and/or winding station comprises an actuator by means of which the component (3) can be displaced between the two positions (4, 5).
10. A method for operating a textile machine (1) implemented according to any one or more of the preceding claims and having a plurality of spinning (2) or winding stations, the spinning (2) or winding stations and/or the textile machine (1) comprising at least one component (3) displaceable back and forth between at least two positions (4, 5), and the textile machine (1) comprising a sensor unit (6) by means of which a magnitude and a direction of a change in position and/or motion of the component (3) is monitored.
11. The method according to the preceding claim, characterized in that the textile machine (1) comprises a controller (18) connected to the sensor unit (6) and able to initiate emitting an alarm and/or stopping a maintenance device (7) traveling along the spinning (2) or winding stations and/or stopping the spinning (2) or winding station due to the measured position (4, 5) and/or motion of the component (3).
12. The method according to the preceding claim, characterized in that a present position (4, 5) and/or motion of the component (3) is calculated by means of analyzing, preferably summing, the changes in position and/or motion, particularly by the controller (18).
13. The method according to any one or more of the preceding claims 11 through 12, characterized in that the controller (18) causes an actuator disposed at the spinning (2) and/or winding station to displace the component (3) from one position (4, 5) into a different position (4, 5) due to the measured position (4, 5) and/or motion.

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