EP1707656A1 - Method and arrangement for operating a creel for a winding machine and creel - Google Patents

Abstract

The warping unit has spools with packing machine rotating with an angular speed of threads. The yarn tenioner is controlled during a high driving procedure and/or a stop procedure of the winding machine to keep a thread tension of thread constantly with regard to the desired value (31). The thread tension is produced by the yarn tenioner with a variable braking force. The angular speed of the winding machine is measured during the high driving procedure and/or the stop procedure and converted into a thread speed, and the yarn tenioner is driven by the thread speed as input for the control. The braking force is calculated from the motor-specific parameters of driving motor of the yarn tenioner for controlling the yarn tenioner. A disturbance variable compensation (24) with the thread speed is calculated as input correction variable (34) around the motor inertia and the friction value of the driving motor for the determination of a correcting variable (32) for the braking force. The actual value of the thread tension of each thread is detected by a thread tension sensor and regulated by an automatic controller (25) on the desired value. Independent claims are included for: (1) control and regulator arrangement; and (2) a warp creel.

Description

The invention relates to a method and an arrangement for operating a creel for a winding system and a creel according to the preamble of the independent claims. With such methods, the best possible tension compensation of all threads on a creel is sought, because the different run lengths of threads between winding units and winding machine and the associated thread guide would lead to different thread tensions without appropriate compensation. The consequence of this would be an uneven winding density.

Methods for operating a creel are already known, in which the thread tension of each thread is to be kept as close as possible to a constant desired value. For example, describes the EP-A-1 162 295 a method for operating a creel for a sewage treatment plant having a plurality of winding stations, wherein at each winding the respective thread is acted upon by a thread tensioner with a braking force. The threadline is constantly measured during the winding process. The actual value of the thread tension or of the initial thread tension measured in this way is compared with a desired value and approximates it when a deviation is detected, wherein each thread tensioner is activated via a corresponding drive motor. In practice, it has been shown that the control method described achieves good results during normal operation with constant speed of the winding machine, for example a cone warping machine. In other operating conditions, especially during startup or stop process, however, the scheme is often overwhelmed. Especially with winding systems with large thread lengths between creel and winding machine, the handling of the process has proved difficult. For fast processes, in particular during startup or when the winding machine stops, the yarn path may swing up due to too rapid a voltage adjustment during the regulation of the thread tension. The threads can tear (if the thread tension is too great) or sag (if the thread tension is too small, entanglement risk).

It is therefore an object of the present invention to avoid the disadvantages of the known, in particular to provide a method of the type mentioned, which ensures optimal tension compensation of all threads even during non-stationary operating conditions, especially during a startup process or a stop process , In particular, the thread tension of each thread should be able to be maintained at a particularly constant desired value under all operating conditions. The method should be particularly suitable for winding systems with long thread lengths between creel and winding machine. The installation of an arrangement for operating the creel should continue to cause as little cost as possible.

These objects are achieved according to the invention with a method having the features in claim 1.

Winding machines, for example a cone warping machine with a warping drum, rotate at an angular velocity. The angular velocity may be approximately constant in normal steady state operation and vary in non-stationary operating conditions. At each winding station, the yarn is subjected to a variable braking force by means of at least one thread tensioner for producing a specific thread tension, which essentially corresponds to the initial thread tension. To hold the string to a set value during a boot-up procedure and / or a stop operation of the winding machine controlled each thread tensioner on the angular velocity of the winding machine. The startup process is understood to mean that non-stationary operating state in which the winding machine accelerates from zero to steady state normal operation. During the stop process, the winding machine is decelerated from stationary normal operation to standstill. Each thread tensioner has an associated drive motor. To control the thread tensioner, a drive motor is activated. Thus, each thread can be acted upon in a simple manner with the necessary braking force. The angular velocity can be further measured by simple means. This control has the advantage that each thread tensioner in all operating conditions, especially during the entire period of the startup process or stop process, are set accurately. The control of the thread tensioner during the non-stationary operating states has the advantage over a control that a rocking or unfavorable stimulation of the threads is avoided. As an alternative to measuring the angular velocity, it is of course also conceivable that each thread tensioner is controlled directly via the thread speed of the thread.

The input variable for the control of each thread tensioner is the thread speed. To control the thread tensioner, it may therefore be advantageous if the angular speed of the winding machine during the startup process and / or the stop process is measured continuously and converted into a yarn speed. This is particularly advantageous with the inclusion of the layer thickness of the thread winding on the winding machine. The layer thickness can be measured with a corresponding device. Since the layer thickness depends essentially on the type of yarn, it could also be calculated without measuring the layer thickness. To achieve accurate results could be in this Case also the contact pressure of the press roller to be involved. By measuring the angular velocity of the winding machine, of course, the thread acceleration can be detected analogous to the thread speed. Thus, during non-stationary operating conditions, the behavior of the filaments over the entire duration is known, ensuring accurate control of the thread tensioners. As previously mentioned, it is also conceivable to measure the thread speed directly on the thread between the creel and winding machine.

The necessary braking force for controlling the thread tensioner can be calculated from the thread speed and thread tensioner-specific and in particular motor-specific parameters of the drive motor of the thread tensioner. In particular, the engine inertia and the friction value of the drive motor come into consideration as control-relevant parameters for controlling the thread tensioner.

To determine a manipulated variable for the necessary braking force for controlling the thread tensioner, a disturbance variable feed-in with the thread speed as input variable can calculate a correction variable. In this case, it is advantageous to compensate at least the engine inertia and the friction value of the drive motor. The values for the engine inertia, the friction value and advantageously also the torque constant of the drive motor can be detected in a simple manner. For example, the values for engine inertia, friction value and torque constant can be read from data sheets of the respective manufacturers. Costly measuring devices can be dispensed with. The Störgrössenkompensation can be done in a simple manner. The drive motor can be torque-controlled, the mentioned control variable and the correction variable are as currents. The previously described control of the thread tension during startup or stop of the winding machine can with a Control for the stationary phase (normal operation) of the winding machine can be combined. For this purpose, the actual value of the thread tension of each thread is detected by a yarn tension sensor continuously during normal operation and regulated by means of a regulator to the desired value. Such a regulation is for example in the EP-A-1 162 295 described. This combined control and regulation ensures an optimal yarn course of all yarns in all operating conditions.

The controller can use the thread speed curve to see which operating state (startup, normal operation, stop) is present. At the time of a transition from one operating state to another operating state (e.g., start-up to steady-state operation), the control is either turned on or off. For example, the threads have rising thread speeds when the winding machine is started up (in this case, a constant acceleration is particularly preferably provided for the thread or for the winding machine). As soon as the thread acceleration is close to or exactly zero, the controller is switched on. So can be changed easily from the controller to the control. Of course, the changeover from control to regulation (or vice versa) could also take place directly via the angular speed of the winding machine on the basis of certain end values.

Another aspect of the invention relates to an arrangement, in particular a control and regulating arrangement, for operating a creel for a winding system, in particular a sewage treatment plant, with a creel with several winding units of a winding machine for co-winding a plurality of threads of the same or different genus of the winding units subtracted from. In order to maintain a constant thread tension of each thread, the arrangement has a Störsstromssenaufschaltung for Control of the thread train during the boot-up process and / or the stop process of the winding machine on the input side is in operative connection with a rotary encoder of the winding machine, which provides a signal for the angular velocity of the winding machine. The variable angular velocity represents the disturbance variable. Changes in the thread speed lead to a varying thread tension. Disturbance of the thread system can be compensated in a simple manner with the aid of a disturbance variable connection. The control and regulating arrangement can be used in particular for the previously described method for operating a creel for a winding system. Instead of using the rotary encoder, the disturbance variable connection could also be connected to a measuring device for measuring the thread speed of the threads, for example in the form of a deflecting roller.

The control and regulating arrangement can have a speed measuring device with which the thread speed of the threads can be measured. The winding machine driven by the rotary encoder can provide a signal for the angular speed of the winding machine, which can be converted into the thread speed. Alternatively, for example, with the aid of a deflection roller, the thread speed could be detected directly.

Further, a controller may be provided for controlling the thread tension during normal operation of the winding machine. The combination of such a control arrangement with a control arrangement with a Störgrössungsaufschaltung ensures a nearly optimal adjustment of the thread tension of each thread. The thread tension of each thread can thus be kept at an approximately constant desired value for each operating state in a simple manner.

It is advantageous if a summing device is provided for generating the manipulated variable for the necessary braking force for controlling the thread tensioner, with which the correction variable output by the disturbance variable summation is summed with a desired value for the braking force of the thread tensioner (or subtracted, depending on the sign). , It is particularly advantageous if the summing device can also sum a controller correction variable which is output by the controller for regulating the thread tension during normal operation of the winding machine.

For each thread, a control arrangement with a disturbance size control and a control arrangement can be provided with a controller. These components can be networked together via a bus system, in particular a CAN and / or PROFI bus system.

Another aspect of the invention relates to a creel which can be operated in particular by the method of the aforementioned type and which may be provided in particular with control and regulating arrangement of the aforementioned type. The creel has a control arrangement for controlling the thread tension depending on the angular speed of the winding machine or the thread speed of the threads during a startup process and / or stop operation of the winding machine. Furthermore, it has a regulating arrangement with at least one controller for regulating the thread tension during stationary normal operation of the winding machine. The control arrangement and the control arrangement are designed in such a way that the thread tension of each thread can be kept approximately constant with respect to a desired value with the aid of the thread tensioners which can be adjusted via their drive motors. As drive motors DC motors are particularly suitable.

As a thread tensioner (or thread brakes) are advantageous to choose dynamic thread tensioner. Such thread tensioners may comprise at least one rotatable rotary body having an axis of rotation, wherein the thread for applying a braking force at least partially engages the peripheral region of the rotary body and wherein for adjusting the braking force of the rotary body can be driven via the respective drive motor. Such thread tensioners are for example in the EP-A-950 742 or in the US 4,413,981 been described. Of course, other thread tensioner, such as thread tensioner with plate brakes, but also possibly Ösenvorspanner or Crepevorspanner be conceivable. Thread tensioner with a rotating body have over friction brakes such as plate brakes the advantage that the inertia of the rotating body has a favorable (calming) effect on the threadline. Thread tensioners with only one rotatable rotary body but are also particularly suitable because they have only a few control and control relevant parameters and thus are easy to handle.

Figur 1

eine schematische Seitenansicht auf eine Wickelanlage mit einem Spulengatter,

Figur 2

eine Draufsicht auf eine einzelne Spulstelle mit einem Fadenspanner und einem Fadensensor,

Figur 3

eine perspektivische Darstellung des Fadenspanners gemäss Figur 2,

Figur 4

eine Draufsicht auf einen Fadenspanner und einen Fadensensor,

Figur 5

eine Seitenansicht auf den Fadenspanner gemäss Figur 4,

Figur 6

ein vereinfachtes Blockschaltbild für eine Steuer und Regelanordnung für eine Wickelanlage,

Figur 7

eine Störgrössenaufschaltung für die Steuer und Regelanordnung gemäss Figur 6,

Figur 8

ein Regler für die Steuer und Regelanordnung gemäss Figur 6,

Figur 9a

Ein gemessener Verlauf des Fadenzugs während eines Stopp-Vorgangs der Wickelmaschine,

Figur 9b

Ein zugehöriger Verlauf des Stellstroms für den Antriebsmotor zu Figur 9a, und

Figur 10

eine stark schematisierte Ansicht der Wickelanlage.

Further advantages and individual features of the invention will become apparent from the following description of exemplary embodiments and from the drawings. Show it:

FIG. 1

a schematic side view of a winding system with a creel,

FIG. 2

a top view of a single winding unit with a thread tensioner and a thread sensor,

FIG. 3

a perspective view of the thread tensioner according to Figure 2,

FIG. 4

a top view of a thread tensioner and a thread sensor,

FIG. 5

a side view of the thread tensioner according to Figure 4,

FIG. 6

a simplified block diagram for a control and regulating arrangement for a winding machine,

FIG. 7

a disturbance variable connection for the control and regulating arrangement according to FIG. 6,

FIG. 8

a controller for the control and regulating arrangement according to FIG. 6,

FIG. 9a

A measured course of the thread train during a stop operation of the winding machine,

FIG. 9b

An associated course of the actuating current for the drive motor to Figure 9a, and

FIG. 10

a highly schematic view of the winding system.

Figure 1 shows a designated 1 winding system, such as a sewage treatment plant with a creel 2 and a winding machine 3, z. B. a cone warping machine. Of course, but also paper or Bäummaschinen are conceivable as winding machines. The individual thread bobbins 4 are attached to winding units 7 of the creel and the jointly withdrawn threads 5 pass at least one thread tensioner (or thread brake) 6 to maintain a predetermined thread tension. The example according to FIG. 1 shows a parallel gate. The coils thereby form vertical and horizontal rows, wherein each vertical row forms a thread group on each gate side, the yarn running length of the winding unit to the winding machine is the same size. However, the same principle can also be applied to any other type of gate, e.g. in a V-gate.

On the gate coils of different types, for example, different yarn qualities or different thread colors can be plugged regardless of the thread running length at different locations. Independently of the so-called gate length compensation, the threads of different types can each be exposed to an individual braking force.

In the area of the gate side 8, which is closest to the winding machine 3, the thread tension sensors 9 are preferably arranged for each individual thread. However, the arrangement of the thread tension sensors at this point is not mandatory. In principle, it would be advantageous to introduce the thread tension sensors as close as possible to the winding point of the winding machine.

After leaving the creel, the threads pass into the area of the winding machine 3 where they first pass through a flushing sheet 10, in which the threads are given their correct sequence. Subsequently, the threads are fed to the warper blade 11, in which they are brought together to be subsequently wound as a thread assembly 12 via a deflection and / or measuring roller 13 on the winding 15 and on the winding beam 14.

For the operation of the creel 2 for the winding system 1, a control and regulating arrangement 17 is provided. This arrangement 17 is connected to a rotary encoder 16 for the rotation of the winding machine 3. In the highly schematic representation according to FIG. 1, the arrangement 17 receives on the input side a signal 29 from the rotary encoder 16 and signals 30 from the voltage sensors 9. On the output side, the arrangement 17 is connected to the thread tensioners 6, which are controlled and regulated by the control variable 32. As an input signal 29, for example, a signal for the angular velocity .DELTA. Can be provided. Particularly suitable as an input signal 29 is a signal for the yarn speed v, which can be calculated, for example, from the angular velocity Δ and the measured thickness of the roll 15. However, the thread speed v could also be measured directly with the aid of the deflection roller 13.

Fig. 2 shows, for example, how a unwound from a coil 4 Thread 5 passes through a thread tensioner 6. The braking force is applied here by a disk brake 18 with two in the thread running direction successively arranged brake actuator units. The disk brake is housed in a U-shaped vertical support profile, are arranged in the U-leg yarn guide eyelets for the passage of the thread 5. Fig. 3 shows further details of the thread tensioner with the disk brake. Over each disk brake 18, an individual drive motor 20 is mounted directly in the support profile. This actuates an adjustment support 22, a pressure element 23 which loads or relieves the brake plates.

However, thread tensioners with only one rotatable rotary body have proven to be particularly suitable. As FIG. 4 shows, a particularly suitable thread tensioner 6 consists of only one rotatable rotary body, which is connected to a drive motor (not shown). The rotary body is designed here as a yarn wheel 19, which has a radius r and a rotation axis R. As can be seen from FIG. 5, the thread 5 is wound several times around the roller 19. Of course, but can also satisfy a single winding. With the help of a thread sensor 9, the thread tension of the thread 5 is then measured. The following description of the control and regulating arrangement refers to the thread tensioner according to Figures 4 and 5. The structure and operation of such a yarn wheel is, for example, in the EP-A-950 742 described. As a sprocket but you could also in particular a from the
US 4,413,981 Provide known yarn wheel. Of course, the control and regulating principle described below could also be used for other dynamic thread tensioners (compare Fig. 2/3). Thus, roller tensioners would be suitable in which the thread is guided over a nip between two rollers.

FIG. 6 shows a schematic block diagram with a control and regulating arrangement for operating the creel for the winding installation. 26 denotes a controlled system for the thread. A controller 25 controls the thread tension during stationary normal operation of the winding machine. Such a rule method is for example from EP-A-1 162 295 known. The continuously measured actual value 30 of the thread tension is compared in controller 25 with the corresponding setpoint value 31 and, when a deviation of the actual value from the setpoint value is detected, the thread tensioner is adjusted with the aid of the controller such that the actual value approaches the target value. Accordingly, the controller 25 outputs on the output side a signal 36 which corresponds to a stationary current for driving the drive motor and a correction quantity 35 which detects and incorporates the deviation of the DESIRED value from the ACTUAL value. In a summing unit 40, the two signals 35 and 36 are added and provide for the steady-state normal operation, a manipulated variable 32 (actuating current) for the drive motor of a thread tensioner.

For special operating conditions, in particular for starting up or stopping the winding machine, the described control method may be less suitable. This applies in particular to winding systems with large thread lengths. For these non-stationary operating states, such as starting or stopping the winding machine, a disturbance variable connection 24 is provided. In this case, the measured thread speed v serves as the input signal 29 for the disturbance variable connection 24. On the output side, the disturbance variable circuit 24 supplies a correction variable (correction current) 34, which is subtracted from the nominal value or the current 36 in the summation unit 40. During the boot-up or stop process, the correction current 35 from the regulator 25 may be zero, for example.

The influence of the withdrawal from a coil, for example a cross-wound bobbin, is further illustrated in FIG. 6 by FIG. One for the disturbance of the thread train by deduction of the coil provides an interference signal 33. The purpose of the controller 25 is here in particular the adjustment of this influence.

FIG. 7 shows details of the disturbance variable connection 24. By means of a multiplier 50 (1 / r), the yarn speed v is converted into the rotational speed of the yarn wheel with the radius r. A thread tensioner according to Fig. 4/5 is - in addition to the radius of the yarn wheel - characterized by parameters of the drive motor. Therefore, the motor inertia J, the friction kr and the torque constant of the motor Km are detected as control-relevant parameters.

By means of the unit 55, a value for the acceleration of the thread is calculated. The multiplier 53 (motor inertia J) will convert the acceleration in one value for one moment. This moment is added in a summing unit 41 with another moment, which was generated by friction of the drive motor. For this purpose, the rotational speed of the thread wheel is multiplied by the friction kr (multiplier 54). Finally, the sum of the moments over the multiplier 52 (torque constant 1 / Km) in a correction value 34 (correction current for a drive motor) is converted.

FIG. 8 shows a simplified block diagram for the controller 25. The desired value 31 for the thread train is converted into a nominal current 36 for the drive motor of a thread tensioner via the multipliers 51 and 52 (51: radius r; 52: torque constant 1 / Km) converted. Furthermore, the deviation of the nominal value 31 from the actual value 30 is formed with a summing unit 42 (the actual value here has a negative sign). The yarn tension difference thus formed is converted by an integrator 43 and subsequently by the multipliers 51 (radius r) and 52 (torque constant 1 / Km) into a correction variable or a correction current 35.

Figures 9a and 9b show the course of the thread train during a stop and the associated course of the manipulated variable or the actuating current 32 for the drive motor of a thread tensioner. The curve 29 shows the thread speed of the thread. This is substantially constant up to a time T ₀ and goes to a standstill in an approximately straight line during a period of time ΔT. 31 denotes the predetermined desired value for the thread train. As can be seen, until the time T _0, the measured actual value 30 runs - due to the control - in a narrow band range along the constant nominal value. At time T ₀ then takes place the change from the control to the control of the thread tensioner. As the curve 30 shows, this is during the period .DELTA.T ratio close to the target line 31. Figure 9 shows that from the time point T ₀ for controlling the thread tensioner, an increased control current 32 is used to brake the drive motor.

FIG. 10 shows a highly schematized representation of a winding installation 1 which is controlled and regulated according to the method described above. The thread tensioner 6 and the thread sensor 9 are divided relative to the left side (LS) and the right side (RS) of the creel. In order to process the large amounts of data, the individual components are connected to one another via data lines 43 and 44, which operate, for example, according to the CAN bus principle. The data line 45, which a programmable controller, the winding machine with a connect programmable logic controller (PLC) of a creel can be designed as a PROFI bus.

Claims (13)

1. A method for operating a creel (2) for a winding system (1), in particular a sewage treatment plant, with a plurality of winding units (7), in which with a with an angular velocity (ω) rotating winding machine (3) together several threads (5) the same or different genus, are subtracted from the winding units, wherein at each winding unit the yarn for generating a specific thread tension by means of at least one thread tensioner (6) is subjected to a variable braking force, wherein the thread tensioner is activated by a drive motor associated therewith (20), characterized in that each thread tensioner (6) is controlled during a start-up operation and / or a stopping operation of the winding machine (3) via the angular velocity of the winding machine (3) to approximately constant the yarn tension of each yarn with respect to a DESIRED value (31) to keep. 2. The method according to claim 1, characterized in that the angular velocity (ω) of the winding machine (3) during the startup process and / or the stop operation continuously measured and converted into a yarn speed (v), each yarn tensioner (6) by the yarn speed (v) is controlled as an input to the controller. 3. The method according to any one of claims 1 or 2, characterized in that the necessary braking force for controlling the thread tensioner (6) from the thread speed (v) and thread tensioner-specific, in particular engine-specific parameters (J, kr) of the drive motor (20) Thread tensioner (6), is calculated. 4. A method according to any one of claims 1 to 3, characterized in that for determining a control variable (32) for the necessary braking force for controlling the thread tensioner (6) a Störgrössenaufschaltung (24) with the thread speed (v) as an input variable, a correction variable (34). calculated. 5. The method of any one of claims 1 to 3, characterized in that for determining a manipulated variable (32) for the necessary braking force for controlling the thread tensioner (6) a Störgrössenaufschaltung (24) with the thread speed (v) as an input to an at least the motor inertia (J) and the friction value (kr) of the drive motor (20) compensated compensated variable (34) calculated. 6. The method according to any one of claims 1 to 5, characterized in that during a normal operation of the winding machine (3) the actual value (30) of the thread tension of each thread from a yarn tension sensor (9) is continuously detected and by means of a controller (25) to the target value (31). 7. Arrangement for operating a creel (2) for a winding installation for a winding installation (1), in particular a sewage treatment plant, with a creel (2) with several winding stations (7) and a winding machine (3) for jointly winding a plurality of threads (5) of the same or different genus withdrawn from the winding units, for maintaining a constant thread tension of each thread, characterized in that the arrangement comprises a disturbance size control (24) for the control of the thread tension during the booting process and / or the stopping operation of Winding machine (3) on the input side is in operative connection with a rotary encoder (16) of the winding machine (3), with which a signal for the angular velocity (ω) of the winding machine (3) can be generated. 8. Arrangement according to claim 7, characterized in that a speed-measuring device is provided, with which the thread speed (v) in particular on the basis of the angular velocity (ω) of the winding machine (3) can be measured. 9. Arrangement according to claim 7 or 8, characterized in that further comprises a controller (25) for regulating the thread tension during normal operation of the winding machine (3) is provided. 10. Control and regulating arrangement according to one of claims 7 to 9, characterized in that a summing device (40) for generating the manipulated variable (32) for the necessary braking force for controlling the thread tensioner (6) is provided, which of the Störgrössenaufschaltung (24) outputted correction quantity (34) with a set value (36) for the braking force of the thread tensioner (36) summed. 11. creel (2) having a plurality of winding units (7), of which with a winding machine (3) at the same time several threads of the same or different genus are deductible, and with at least one winding unit associated with each dynamic thread tensioner (6), to which for generating a specific Fadenzugs the thread with a variable braking force can be acted upon, each thread tensioner (6) with its associated drive motor (20) can be activated, characterized in that a control arrangement for controlling the thread tension in dependence of the angular velocity or the Thread speed during a startup process and / or a stop operation of the winding machine (3) and a controller (25) for controlling the thread tension during the stationary normal phase of the winding machine (3) is provided, wherein the control arrangement and the controller (25) are designed such that the yarn tension or the initial yarn tension of each yarn can be kept approximately constant with respect to a DESIRED value. 12. creel (2) according to claim 1, characterized in that each thread tensioner (6) each having at least one rotatable rotary body (19) having an axis of rotation (R), wherein the thread for applying a braking force at least partially engages the peripheral region of the rotary body wherein it is preferably at least once wound around this and that for adjusting the braking force of the rotary body via the respective drive motor (20) is drivable. 13. A creel (2) having a plurality of winding units (7), of which with a winding machine (3) simultaneously several threads of the same or different genus are deducted, and with at least one winding unit associated with each dynamic thread tensioner (6) on which for generating a certain thread tension of the thread with a variable braking force can be acted upon, each thread tensioner (6) with an associated drive motor (20) can be activated, has a control arrangement for controlling the thread tension depending on the angular velocity or the thread speed during a boot-up and / or a Stop operation of the winding machine (3) and a controller (25) for controlling the thread tension during the stationary normal phase of the winding machine (3). The control arrangement and the controller (25) are designed such that the yarn tension or the output yarn tension of each yarn can be kept approximately constant with respect to a desired value. To determine a manipulated variable (32) for the necessary braking force for controlling the thread tensioner (6), a disturbance variable lock (24) is provided, which compensates for the at least the engine inertia and the friction value of the drive motor (20) as the input variable with the yarn speed (v) Correction variable (34) calculated.

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