KR101168849B1 - Method and device for winding several threads - Google Patents

Abstract

The present invention relates to a method of winding a plurality of yarns to form bobbins. The bobbins (9.1; 9.2) are held on two adjacent and parallel bobbin spindles (7.1; 7.2) and are driven in opposite directions while the thread is wound at a predetermined surface speed. During the process, each of the two pressure rollers (6.1; 6.2), which are rotatably mounted and opposed to the circumference of the bobbins (9.1, 9.2), work together with the bobbin spindle (7.1; 7.2). In order to keep the two bobbins (9.1; 9.2) at the same speed as possible during the winding of the thread in the two bobbin spindles (7.1; 7.2), the surface speed of the bobbins (9.1; 9.2) is controlled, and the two bobbins in accordance with the measured rotation speed In order to adjust the driving speed of the spindles 9.1, 9.2 together, the rotational speed of one of the pressure rollers 6.1; 6.2 is measured, which keeps the rotational speed of the sensed pressure rollers 6.1, 6.2 essentially constant. It is done in such a way.

Description

METHOD AND DEVICE FOR WINDING SEVERAL THREADS}

The present invention relates to a method of winding a plurality of yarns with bobbins according to the preamble of claim 1 and an apparatus for performing the method according to the preamble of claim 10.

In the production of synthetic threads, a number of yarns from the polymer melt are spun at the same time in parallel and in turn wound and there is a growing tendency to wind into bobbins. Therefore, methods of spinning and simultaneously winding 10, 12, 16 or more yarns are known. In this case, the thread winding takes place in a bobbin-winding machine, in which the bobbin is fixedly wound on the bobbin spindle. In the case of a relatively large bobbin width and a large number of yarns, this type of bobbin winder correspondingly requires a long bobbin spindle. Thus, a new concept has been developed in which bobbins are wound simultaneously on two bobbin spindles arranged parallel to each other. Such a method and such a device are disclosed in WO 03/068648 A1.

In the disclosed method and apparatus, the yarn is wound around the bobbin simultaneously in two bobbin spindles arranged one after the other. For this purpose, the bobbin spindle is driven by the spindle drive. Each bobbin spindle is assigned to one of two press rollers which are kept in motion in the radial direction with respect to the bobbin spindle via a rocker. While winding the thread to the bobbin, the pressure roller presses on the circumference of the bobbin. As the diameter of the bobbin grows, the position of both the press roller and the bobbin spindle can change in each case. In addition, depending on the degree of freedom, the pressurized roller which is kept movable can additionally move radially with respect to the bobbin spindle by means of a slide. In addition, since the yarn is usually wound on the bobbin at a constant winding speed, there is a need for a bobbin driven by the bobbin spindle as far as possible at the same circumferential speed. However, due to the large number of degrees of freedom, it is unavoidable that the bobbins of the two bobbin spindles have a difference in the bobbin structure.

A method of winding the bobbin spindle is disclosed in DE 40 18 095 A1, where the rotational speed of the bobbin spindle is adjusted in accordance with the rotational speed of the pressure roller in such a way that the circumferential speed in each case has a constant value. This adjustment of the circumferential speed of bobbins growing on each bobbin spindle requires different settings and windings by the number of degrees of freedom of movement. The method and apparatus based on the prior art thus has the disadvantage that each bobbin spindle must result in a different bobbin structure. Thus, the difference in the circumferential speed of the bobbin can cause a direct change in the tension of the thread during winding.

It is an object of the present invention to provide an apparatus and method of the general manner in which substantially the same bobbin is wound on two bobbin spindles while winding the thread simultaneously.

Another object of the invention is to wind the tension of the same thread as much as possible on the thread of the winding thread sets.

This object is achieved by a method having the features claimed in claim 1 and an apparatus having the features claimed in claim 10.

Preferred embodiments of the invention are defined by the features of each of the dependent claims and the combination of features.

The invention is distinguished in that it controls the change in the drive rotational speed of the bobbin spindle by a common closed loop while the bobbin is winding. Thus, the change in the drive rotational speed of the bobbin spindle can be performed synchronously. Control of the drive of the bobbin spindle takes place simultaneously. For this purpose, first, the rotation speed of one of the pressure rollers is measured. By means of the control device, the overall change in the drive rotational speed of the bobbin spindle is carried out in accordance with the respective rotational speeds measured in the pressure rollers in such a way that the measured rotational speeds of the pressure rollers remain essentially constant. Thus, the second pressure roller not included in the closed loop is automatically placed in the same state as the pressure roller monitored by the sensor.

In order to carry out this method, the device according to the invention has a rotational speed sensor assigned to one of the pressing rollers for measuring the rotational speed of the pressing roller. The rotational speed sensor is connected to the spindle drive of the bobbin spindle by a control device to form a closed loop. Thus, the sensor signal can be advantageously utilized to operate both spindle drives.

According to an advantageous embodiment of the invention, the bobbin spindle is controlled and driven synchronously such that both bobbin spindles operate with the same rotational speed and hence the same circumferential speed of the bobbin. For this purpose, the spindle drive is preferably constituted by two synchronous motors and a control mechanism, which is connected to the control device. This embodiment is distinguished in particular by the degrees of freedom of the arrangement of the pressing roller and bobbin spindle. Thus, the pairing of the pressing roller and the bobbin spindle can be arranged in sequence, and can be arranged up and down. If a change in the rotational speed of one of the knitting between the spindle and the pressure roller is detected, the synchronous drive of the bobbin spindle requires the same control in the unmeasured knitting.

When the yarn is wound and accumulated on the circumference of the bobbin, slipping may occur between the circumferential surface of the bobbin and the circumferential surface of the pressure roller. In order to avoid this slip phenomenon occurring differently in the two pressure rollers, embodiments of the invention preferably use pressure rollers which are mechanically or electrically coupled such that the two pressure rollers rotate at the same rotational speed. The pressure rollers are connected to each other by gear means for engagement. The gear means are configured mechanically or electrically to obtain the rotational speed adaptation of the two pressure rollers.

In this case, the pressure rollers can be driven further oppositely by the external drive, which can contribute particularly to the bobbin replacement operation. Preferably, however, the external drive of the pressure roller is suitable for generating a specific load condition between the drive bobbin and the pressure roller. Thus, the external drive of the pressure roller can be designed such that there is always a braking element or conveying element acting on the circumference of the bobbin. Since the prescribed slip phenomenon can be set between the pressing roller and the bobbin, the thread tension of the thread wound on the bobbin is advantageously affected by the prescribed load conditions.

The external drive portion of the pressure roller is suitable for driving the bobbin spindle by friction, so that the spindle drive portion for directly driving the bobbin spindle may be omitted.

As the bobbin diameter grows, an overlapping deflection movement between the bobbin spindle and the pressure roller must be additionally performed. These deflection movements can be carried out individually or collectively, basically contact between the circumference of the press roller and the bobbin is maintained. The possibility to check whether the contact is maintained can be advantageously obtained by an embodiment of the invention in which the bobbin spindle is in each case driven by two asynchronous motors. Because of the predetermined load condition by the external drive of the pressure roller, the asynchronous motor operates in the same frequency range. Thus, balancing the operating state of the asynchronous motor makes it possible to directly detect the incorrect position where the contact between the pressure roller and the bobbin spindle falls off. The control signal is generated corresponding to the device for correcting the deflection movement.

The deflection movement can simply be performed such that during the winding, the pressure rollers are guided together by the movable holder. The result can be the same setting of pressure at both bobbin winding stations.

However, it is also possible to independently guide each other's pressing rollers to be able to move radially relative to the bobbin. In this case, the pressure roller is preferably held by a movable locker, which is pivotably held independently of one another in the device housing or movable holder.

In principle, however, it is also possible for the pressure roller to remain fixed and to perform a deflection movement with the bobbin spindle alone. For this purpose the bobbin spindle may in each case be guided synchronously, preferably by two movable spindle carriers.

However, the deflection movement between the pressing roller and the bobbin spindle for the growth of the bobbin can be performed by both the movement of the pressing roller and the movement of the bobbin spindle. In addition, the use of a movable spindle carrier in the configuration of the bobbin turret has the advantage that a second bobbin spindle can be maintained at each bobbin winding station, so that both bobbin spindles can be alternately guided to the bobbin winding area and the replacement area.

The method according to the invention is described in more detail below by means of several embodiments of the device according to the invention with reference to the accompanying drawings.

1 is a front view of a first embodiment of a device according to the invention for carrying out the method according to the invention.

2 is a schematic rear view of a first embodiment of a device according to the invention for carrying out the method according to the invention.

3, 4 and 5 are schematic diagrams of another embodiment of an apparatus according to the invention for carrying out the method according to the invention.

1 and 2 show a first embodiment of an apparatus according to the invention for carrying out the method according to the invention. In this case, FIG. 1 is a front view of the embodiment, and FIG. 2 is a schematic rear view.

First, the structure of an embodiment will be described with reference to FIG.

An embodiment of the device according to the invention has two bobbin winding stations 29.1, 29.2 formed next to each other on a machine stand 12. In this case, the bobbin winding stations 29.1, 29.2 are configured in mirror symmetry with respect to the center of symmetry. Thus, the bobbin winding station 29.1 on the right side consists of a spindle carrier 10.1 rotatably mounted to the machine stand 12. The first protruding bobbin spindle 7.1 and the second protruding bobbin spindle 11. 1, offset by 180 °, are held in the spindle carrier 10.1. In this case, the first bobbin spindle 7.1 is in the working position for winding one or more threads. The second bobbin spindle 11. 1 is located in the replacement position for replacing the full bobbin with an empty bobbin tube.

In mirror symmetry with respect to the spindle carrier 10.1, the second spindle carrier 10.2, arranged in the same plane or offset plane, is located in the second bobbin winding station 29.2 of the machine stand 12. The spindle carrier 10.2 houses the protruding bobbin spindles 7.2 and 11.2. In the shown operating state, the bobbin spindle 7.2 is in the operating position and the bobbin spindle 11.2 is in the replacement position.

Each of the spindle carriers 10.1 and 10.2 is in each case located in front of the seal run by pressure rollers 6.1 and 6.2. In this case, in the bobbin winding station 29.1, the pressure roller 6.1 cooperates with the bobbin spindle 7.1 to wind the seal 1.1 to the bobbin 9.1. While winding the yarn 1.1, the pressure roller 6.1 presses the circumference of the bobbin 9.1 which is wound.

In the bobbin winding station 29.2, the pressure roller 6.2 cooperates with the bobbin spindle 7.2 located in the operating position to wind the second chamber 1.1 on the bobbin 9.2. In this case too, the pressure roller 6.2 presses the circumference of the bobbin 9.2 to be wound.

The pressure rollers 6.1 and 6.2 are rotatably mounted and fixed to the holder 13. This holder 13 houses the traversing device 4 in front of the pressure rollers 6.1 and 6.2. This traversing device 4 is arranged in the center plane between the bobbin winding stations 29.1, 29.2, and for each bobbin winding station 29.1, 29.2 the thread flows 1.1, 1.2 are switched back and forth within the traversing stroke. With transverse thread guides (5.1, 5.2).

This traversing device may for example be formed by a reverse threaded shaft, which has at least one groove on its circumference for guiding the transverse thread guides 5.1, 5.2.

On the upper side of the holder 13, a thread guide carrier 3 is provided, which houses the thread guides 2.1, 2.2. In this case, the thread guide 2.1 is assigned to the bobbin winding station 29.1, and the thread guide 2.2 is assigned to the bobbin winding station 29.2.

The holder 13 is designed to be movable vertically by the slide 15 and the slide guides 14.1, 14.2. In this case, in the manner in which the pressure rollers (6.1, 6.2) in each case are pressed with a predetermined pressing force against the respective bobbins (9.1, 9.2) during the winding of the seals (1.1, 1.2), the slide (15) is provided with two power generators (16.1). , 16.2), which is held in the slide guides (14.1, 14.2).

In the embodiment shown in FIG. 1, the yarns 1.1 and 1.2 are in each case wound on bobbins 9.1, 9.2 at bobbin winding stations 29.1, 29.2. However, as a rule, this kind of device is used to wind several threads into the bobbin at the same time. For this purpose, a number of bobbin tubes (8.1, 8.2) blocked front and back are held on the bobbin spindles (7.1, 7.2). In this case, eight, ten or more bobbin tubes can be held simultaneously on the bobbin spindles (7.1, 7.2). In this case, the bobbin spindle, the pressing roller and the traversing device have a corresponding protruding length so that a plurality of yarns can be wound in parallel and in turn at the same time.

However, whether one yarn (not shown) or multiple yarns are wound in the bobbin in each case at the bobbin winding stations 29.1, 29.2 is not important in the method according to the invention.

To further explain the first embodiment, the driving state of the bobbin spindles 7.1, 7.2 will be described with reference to FIG. 2 below. For the sake of clarity, FIG. 2 schematically shows only the back side of the device part of the bobbin winding stations 29.1, 29.2 required for carrying out the method according to the invention.

In the bobbin winding station 29.2, the bobbin spindle 7.2 is coupled to the spindle drive 23.2 via the spindle end 22.2. The spindle drive 23.2 is assigned to a control mechanism 24.2 connected to the first control device 21. The bobbin (9.2) wound on the bobbin spindle (7.2) is in this case indicated by a dotted line. Freely rotatably mounted pressure rollers 6.2, likewise indicated by dashed lines, press the circumference of the bobbin 9.2. The pressure roller 6. 2 has a roller end 18. 2. The roller end 18.2 is assigned to a rotational speed sensor 20 which can measure the speed of the pressure roller 6.2. The rotational speed sensor 20 is connected to the control device 21.

In the other bobbin winding station 29.1, the bobbin spindle 7. 1 is coupled to the spindle drive 23. 1 via the spindle end 22.1. The spindle drive 23. 1 is similarly connected to the control device 21. Is assigned to). Similarly indicated by dashed lines, the bobbins 9.1 formed on the circumference of the bobbin spindle 7.1 are in contact with the second press roller 6.1. The press roller 6. 1 of the second bobbin winding station 29. 1 is similarly freely rotatable. The pressure roller 6.1 is in this case coupled to the pressure roller 6.2 of the other bobbin winding station 29.2 together with the roller end 18.1 by means of the gear means 19. In this embodiment, the gear means 19 are mechanically configured in the form of a belt or chain, causing the two pressing rollers 6.1, 6.2 of the two bobbin winding stations to rotate at the same rotational speed.

For further explanation, refer to FIGS. 1 and 2. In order to wind the seal 1.1 at the bobbin winding station 29.1, the bobbin spindle 7.1 is driven clockwise (see FIG. 1) by the spindle drive 23.1. The pressing roller 6.1 presses the circumference of the bobbin 9.1 to be wound and drives in the opposite direction by friction.

In the bobbin winding station 29.2, the bobbin spindle 7.2 is driven counterclockwise (see FIG. 1) by the spindle drive 23.2 to wind the seal 1.2 on the bobbin 9.2. In this case, the pressure roller 6.2 rotates clockwise in the circumference of the bobbin 9.2 at a rotational speed corresponding to the pressure roller 6.1. The rotational force transmission between the press rollers 6.1, 6.2 is achieved by gear means. The two bobbin winding stations 29.1, 29.2 are wound synchronously so that the same structure of the bobbins 9.1, 9.2 is achieved at each bobbin spindle 7.1, 7.2.

In order to obtain a constant winding speed of the yarns 1.1 and 1.2, the rotational speed of the pressure roller 6.2 is continuously measured by the rotational speed sensor 20 and sent to the control device 21. The desired rotational speed of the pressure roller 6.2 is recorded in the control device 21. As soon as an unacceptable deviation between the recorded desired rotational speed of the pressure roller 6.2 and the measured actual rotation speed of the pressure roller 6.2 is measured, a control signal is generated and sent to the control mechanism 24.1, 24.2. Lose. The control mechanisms 24.1 and 24.2 change the drive rotation speeds of the spindle drives 23.1 and 23.2 so that the actual rotation speed changed in the pressure roller 6.2 is obtained. Thus, a constant circumferential speed of the bobbins 9.1, 9.2 can be set during the entire winding of the yarns 1.1, 1.2. The spindle drives 23.1, 23.2 are in this case preferably formed by an asynchronous motor. Since the rotational speed feedback of the asynchronous motor is preferably generated by multiple circuits, only one input signal is required for the control device.

In this embodiment, the deflection movement required during the winding of the yarns 1.1, 1.2 due to the growth of the bobbins 9.1, 9.2 is maintained in the movable holder 13 and the bobbin spindle movably held 7.1, 7.2. It can be done by both. Because of the arrangement in which the pressure rollers 6.1, 6.2 are held in the holder 13, the growth of the bobbins 9.1, 9.2 can occur synchronously as a result of the movement of the slide 15.

Although not shown here, the rotational drives of the spindle carriers 10.1 and 10.2 are operated similarly synchronously to carry out a deflection movement, so that, for example, the two spindle carriers 10.1 and 10.2 are driven by gear means. It can be connected to each other and can be operated by one rotary drive.

3 schematically shows another embodiment of controlling bobbin spindle drives of two bobbin winding stations by the method according to the invention. The embodiment according to FIG. 3 is designed essentially the same as the embodiment according to FIGS. 1 and 2, with only the differences described below. In the bobbin winding station 29.1, the bobbin spindle 7. 1 and the pressure roller 6. 1 work together for the winding of the bobbin 9. 1. A pressure roller 6.1 is mounted freely rotatable, and a rotational speed sensor 20 is assigned to the roller end 18.1. The rotational speed sensor 20 is connected to the spindle drives 23.1, 23.2 by the control device 21 to form a closed loop. For this purpose, spindle drives 23.1 and 23.2 are assigned to the control mechanism 24. The spindle drives 23.1 and 23.2 are each formed by a synchronous motor. The control mechanism 24 is connected to the control device 21.

In the second bobbin winding station 29.2 the bobbin spindle 7.2 and the pressure roller 6.2 work together.

In this embodiment, the two pressure rollers 6.1, 6.2 press the circumference of the bobbins 9.1, 9.2 to be wound. The bobbins 9.1, 9.2 are in each case driven by the bobbin spindles 7, 1, 7.2 and the spindle drives 23.1, 23.2 connected thereto. Thus, the rotational speeds of the pressure rollers 6.1, 6.2 are determined by the respective circumferential speeds of the bobbins 9.1, 9.2. The rotational speed of the pressure roller 6.1 is measured by the rotational speed sensor 20 and supplied to the control device 21. The comparison of the actual value / desired value takes place in the control device 21. If there is an unacceptable difference, a control signal is generated in the control device 21 and supplied to the control mechanism 24. The spindle drives 23.1, 23.2 are operated by the drive rotational speed varied by the control mechanism 24. The change of the drive rotational speed takes place simultaneously on both bobbin winding stations 29.1, 29.2, and the variation of the circumferential speed and then the variation of the rotational speed of the pressure roller 6.1 affect the bobbin winding station 29.1, and the rotational speed sensor The signal enters the control device 21 through. In contrast to the previous embodiment, both the pressure rollers 6.1, 6.2 of the adjacent bobbin winding stations 29.1, 29.2 are freely rotatable independently of each other. This gives a high degree of freedom to the arrangement of the subcomponents of the two bobbin winding stations, which is not limited only to the horizontal arrangement.

4 and 5 schematically show another embodiment of the device according to the invention for carrying out the method according to the invention, the two embodiments being essentially the same as the embodiment according to FIG. 1. Referring to the foregoing description of FIG. 1, the differences are as follows.

In the embodiment of FIG. 4, the pressure rollers 6.1, 6.2 of the two bobbin winding stations 29.1, 29.2 are driven by an external drive 25. In this case, the external drive unit 25 is formed by the belt drive unit 26 and the electric motor 28, and the electric motor 28 is assigned to the control mechanism 27. The control mechanism 27 is connected to the control device 21. By the external drive unit 25, the pressure rollers 6.1, 6.2 are driven in the direction opposite to the direction required for the winding.

The drive of the bobbin spindles 7.1, 7.2 and the adjustment of the drive rotational speed of the bobbin spindle take place corresponding to the embodiment according to FIG. 2. With reference to the foregoing description, the bobbin winding stations 29.1, 29.2 can alternate their arrangement for the monitoring of the rotational speed.

The load condition between the drive of the pressing rollers 6.1, 6.2 and the drive of the bobbin spindles 7.1, 7.2 can be determined by the external drive 25. Therefore, the pressure rollers 6.1 and 6.2 may drive the bobbin surfaces of the bobbins 9.1 and 9.2 and may stop them. The control device 21 provides a load condition. In order to avoid malfunction due to the absence of contact during the superposed deflection movement of the bobbin spindle or the pressure roller, balancing of the actual load conditions can additionally be carried out in the control device 21. For this purpose, the operating state, in particular the drive frequencies of the spindle drives 23.1, 23.2, are supplied to the control device 21 via the control mechanisms 24.1, 24.2. For this purpose, the spindle drives 23.1, 23.2 are designed as asynchronous motors. When the two bobbin winding stations 29.1, 29.2 are wound to the above-mentioned setting, no substantial difference occurs in the operating state of the spindle drives 23.1, 23.2. When one of the drives has an off drive frequency, the correction of the deflection movement can be carried out so that the possibility of an absent member can be restored.

The embodiment shown in FIG. 5 is essentially the same as the embodiment according to FIG. 3. In this case, the pressure rollers 6.1, 6.2 are driven by the external drive 25, which is in each case formed by the control mechanism 27 assigned to the two electric motors 28.1, 28.2. Thus, the electrical connection of the pressure rollers 6.1, 6.2 by the external drive 25 can be combined.

The method and apparatus according to the invention is not limited to the arrangement of the individual assemblies shown in FIG. 1. Indeed, the press roller, in particular in the bobbin winding station, can be kept radially movable relative to the bobbin spindle by a rocker. The maintenance of the bobbin spindle and the pressure roller is of fundamental importance only for the performance of the deflection movement. However, independent of the deflection movement, the circumferential speed of the bobbin must be set in such a way that the thread can be wound at the same winding speed and thus essentially a constant tension of the thread.

List of reference marks

1.1, 1.2 thread

2.1, 2.2 thread guide

3 thread guide carrier

4 traversing device

5.1, 5.2 Cross thread guide

6.1, 6.2 pressure roller

7.1, 7.2 bobbin spindle

8.1, 8.2 bobbin tube

9.1, 9.2 bobbin

10.1, 10.2 spindle carrier

11.1, 11.2 bobbin spindle in stop position

12 equipment stand

13 holder

14.1, 14.2 Slide Guide

15 slides

16.1, 16.2 Power Generator

18.1, 18.2 Roller end

19 gear means

20 rotation speed sensor

21 control unit

22.1, 22.2 spindle ends

23.1, 23.2 spindle drive

24, 24.1, 24.2 control mechanism

25 External drive

26 Belt Drive

27 control mechanism

28.1, 28.2 Electric Motor

29.1, 29.2 bobbin winding station

Claims (19)

A method of winding a plurality of threads on bobbins, the bobbins are held on two bobbin spindles arranged in parallel and arranged such that the bobbin spindles rotate in opposite directions with each other at a predetermined circumferential speed during winding. In a method of winding a plurality of threads on a bobbin, which are driven in opposite directions, wherein the bobbin spindles operate with respective rotatable pressure rollers, which press the circumference of the bobbin. In order to control the circumferential speed of the bobbin, the rotational speed of one of the pressure rollers is measured, and the driving rotational speeds of the two bobbin spindles are measured to A method of winding a plurality of threads in a bobbin characterized in that they are changed together accordingly. The method of claim 1, wherein the bobbin spindle is driven and controlled synchronously. The method of claim 1 or 2, wherein the pressure rollers are mechanically or electrically connected to each other such that the two pressure rollers rotate at the same rotational speed. The method of claim 1 or 2, wherein the pressure roller is additionally driven in opposite directions to each other by an external drive unit. 5. A method according to claim 4, wherein a drive or static load condition is set in each case between the external drive of the pressure roller and the spindle drive of the bobbin spindle. 6. A method according to claim 5, wherein the bobbin spindle is driven by an asynchronous motor and the drive frequency of the asynchronous motor is monitored to maintain the load condition in each case. The bobbin according to claim 1 or 2, wherein during the winding, the pressure roller is guided together by the movable holder to perform a deflection movement with respect to the growth of the bobbin. Way. 3. A method according to claim 1 or 2, wherein the pressure rollers are guided independently of each other so as to be able to move radially relative to the bobbin. The bobbin spindle of claim 1, wherein the bobbin spindles are guided synchronously or independently of each other by two movable spindle carriers to perform a deflection movement with respect to the growth of the bobbins. How to wind up. Two bobbin spindles (7.1, 7.2) arranged in sequence to accommodate in each case one or more bobbin tubes (8.1, 8.2) for winding the threads (1.1, 1.2) to the bobbins (9.1, 9.2) at the same time, Two spindle drives 23.1, 23.2 assigned to the bobbin spindles 7.1, 7.2 for driving the two bobbin spindles 7.1, 7.2 in opposite directions; Apparatus for carrying out the method according to claim 1 or 2, having two rotatably mounted pressure rollers (6.1, 6.2) pressing the circumference of the bobbin (9.1, 9.2) during winding. One of the pressure rollers (6.1) is assigned to a rotation speed sensor 20 for measuring the rotation speed of the pressure roller (6.1), the rotation speed sensor 20 and the bobbin spindle (7.1, 7.2) A device for winding a plurality of threads in a bobbin, characterized in that the spindle drive (23.1, 23.2) is connected to the control device (21) to form a closed loop. 11. The bobbin according to claim 10, wherein the spindle drive (23.1, 23.2) is formed of two synchronous motors and a control mechanism (24), the control mechanism (24) being connected to the control device (21). Multiple winding machines. 11. The bobbin according to claim 10, wherein the pressure rollers (6.1, 6.2) are connected to each other by gear means (19) such that the two pressure rollers (6.1, 6.2) rotate in opposite directions with each other at the same rotational speed. Multiple winding machines. 11. Apparatus according to claim 10, characterized in that an external drive (25) is provided for driving the pressure rollers (6.1, 6.2) separately or together in opposite directions. 14. Apparatus according to claim 13, characterized in that the external drive (25) is formed by an electric motor (28) working together with the gear means (19). 14. A plurality of yarns are wound around the bobbin according to claim 13, characterized in that the external drive (25) is formed by two separate electric motors (28.1, 28.2) which can be operated together by a control mechanism (27). Device. 11. The spindle drive according to claim 10, wherein the spindle drive (23.1, 23.2) is formed by two asynchronous motors with one control mechanism (24) or with two assigned control mechanisms (24.1, 24.2). 24, 24.1, 24.2 is a device for winding a plurality of threads on a bobbin, characterized in that connected to the control device (21). The pressure roller (6.1, 6.2) is arranged in the movable holder (13), the holder is arranged in the slide (15), and the bobbin spindle (7.1, by means of slide guides (14.1, 14.2)). A device for winding a plurality of threads in a bobbin characterized in that it guides the pressure rollers (6.1, 6.2) in the radial direction with respect to 7.2). The pressure rollers (6.1, 6.2) are in each case held at two movable rockers, which rockers guide the pressure rollers independently of one another in the radial direction with respect to the bobbin spindle. Device for winding a large number of bobbins. The bobbin spindles (7.1, 7.2) in each case are held in movable spindle carriers (10.1, 10.2), which spindle carriers (10.1, 10.2) are pressurized by a common drive or by separate drives. A device for winding a plurality of threads in a bobbin, characterized by guiding the bobbin spindle radially with respect to the roller.

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