Device for winding yarns

Description

[0001] The present invention relates to a device for rewinding yarns from a feed spool onto a spool sleeve to form a spool, comprising a control system, a machine frame, and a spool mandrel held rotationally fixed in the machine frame with a spool mandrel axis for receiving the feed spool and a winding device.

[0002] Yarn rewinding machines are used in various forms in the textile industry. Rewinding of feed yarn or yarns is a common process in yarn production. The goal is to wind the yarns onto spools in such a way that the spools can be optimally used in subsequent processes. For example, conical dyeing spools are produced from cylindrical feed spools. In this process, a feed yarn is rewound from the feed spool onto a spool casing. Another application of rewinding machines necessitates special spool formats. For instance, sewing machines have specific spool sizes that, due to their particular dimensions, cannot be used in the actual yarn production process. Similarly, special requirements regarding the winding method or an unusual shape of the feed yarn may necessitate rewinding.The devices for rewinding yarns comprise a spool mandrel for holding the feed spool, a winding device, and usually a thread brake. The spool mandrels are designed to be rotationally fixed for rewinding yarns supplied on spool cores, since the feed spool does not rotate while the yarn is being unwound. The yarn unwound from the stationary feed spool, held upside down, is guided to the winding device via a thread brake. The thread brake ensures the necessary tension in the yarn as it is wound onto the spool sleeve. CH 530 333 discloses such a rewinding device, in which the yarn is unwound in conjunction with feed units by the rotating movement of a main spool and / or a backup roller. The backup roller can serve to drive the main spool. The yarn is unwound upside down during rewinding, and the feed spool itself does not rotate.

[0003] Not all types of stock yarns are supplied on stock spools with cores (or spool sleeves) after the yarns are produced. For example, some yarns are formed into stock spools in the form of so-called spin cakes. In this process, the yarn is wound onto a frame made of wire or flat steel, giving the stock spool a polygonal outer surface. The diameter of this frame is also larger at the outer ends of the spool than the diameter of the wound yarn. This makes it impossible to unwind the yarn from a spin cake upside down. This is the case, for example, with viscose yarns. Therefore, in a device designed for rewinding stock spools in the form of spin cakes, the spool mandrels are mounted on swivels. With spin cakes, the yarn is wound onto a wire frame instead of a core. This also prevents the yarn from being unwound upside down.Spincakes are therefore held rotatably on a horizontally arranged spool mandrel. Depending on the design of the spincake, or rather the properties of the yarn being unwound, the spincake rotates either due to the yarn tension or the spool mandrel is driven by a motor.

[0004] During the unwinding or unwinding process of a spin cake, the feed yarn is pulled off while rotating the spin cake itself. Any imbalances within the spin cake cause vibrations that are transferred to the yarn, resulting in tension peaks. These tension peaks propagate to the spool, leading to a reduction in the quality of the new spool. This is particularly noticeable with smooth yarns, such as viscose, as it causes the layers formed on the spool to slip, resulting in insufficient quality or rendering the spool unusable for further processing.

[0005] EP1707523A1 discloses a rewinding device for winding yarns, which includes control measurement devices configured to determine a rewinding speed control parameter of the yarn from a feed spool. A control module is provided to control a rewinding unit for regulating the rewinding speed as a function of this rewinding speed control parameter. A possible rewinding speed control parameter is the take-up yarn tension, which is to be determined by means of a yarn tension sensor located directly downstream of the feed spool.

[0006] GB1490293A discloses further devices for regulating thread tension when unwinding from a bobbin.

[0007] EP1520826A1 discloses a device for increasing the productivity of textile machines, comprising a motor-driven yarn feeder, a yarn guide with a yarn feeder for winding the yarn onto a yarn carrier, a drive for the yarn carrier, and a control system for the yarn carrier. The drive of the yarn carrier is regulated taking into account stochastic fluctuations in yarn tension.

[0008] From US4687151A a device for unwinding or winding thread-like material, e.g. yarn, is known, comprising a spool or winding body, a spool carrier receiving the spool or winding body, and a winding arm mounted on the spool or winding body axis.

[0009] From FR 817 720 A a device or method for rewinding a template yarn in the form of a spin-cake is known.

[0010] The object of the present invention is therefore to propose a device and a method for rewinding a template yarn from a non-coil-shaped template onto a bobbin sleeve, which enables a stable rewinding process and thus a high quality of the bobbin.

[0011] The problem is solved by a device and a method having the features of the independent patent claims.

[0012] A device for winding feed yarn onto a bobbin case to form a bobbin is proposed. The device comprises a control unit and a machine frame, the machine frame containing a rotationally fixed bobbin mandrel with a bobbin mandrel axis for receiving the feed yarn, a first dancer arm, a first thread tension sensor for measuring thread tension, a feed unit, and a winding device. The first dancer arm and the first thread tension sensor are arranged between the bobbin mandrel and the feed unit. Furthermore, a take-up thread guide is arranged at a radial distance from the bobbin mandrel axis, the take-up thread guide being equipped with a drive for rotating the take-up thread guide about the bobbin mandrel axis.A feed yarn placed on the rotationally fixed bobbin mandrel is not unwound by the winding device overhead, i.e., in the direction of the bobbin mandrel axis, but rather guided radially away from the bobbin mandrel by the rotating take-up yarn guide. The radial distance of the take-up yarn guide from the bobbin mandrel axis depends on the diameter of the feed yarn deposit. It has been shown that for most applications, a radial distance of 0.6 to 0.8 times the diameter of the feed bobbin or spin cake is sufficient. The take-up yarn guide rotates around the bobbin mandrel at a speed determined by the control system, ensuring that the feed yarn is always guided radially away from the bobbin mandrel axis. This means the feed yarn is guided away from the bobbin mandrel in the opposite direction to how it was wound or positioned during its production.After passing through the take-up yarn guide, the feed yarn is guided to the first dancer arm and then, via the first yarn tension sensor, to the delivery unit. The take-up yarn guide, which rotates around the bobbin mandrel axis, has the advantage that the winding pattern of the feed yarn or the spin cake has no influence on the yarn's behavior during unwinding. Vibrations are negligible because, due to the lack of movement of the roving bobbin, any existing imbalance in the roving bobbin does not affect the movement of the unwound feed yarn. Particularly with smooth yarns, such as viscose, this device enables the production of high-quality bobbins. Furthermore, it offers energy savings compared to conventional methods, as the weight of the feed yarn has no influence on the drive of the take-up yarn guide, unlike the familiar rotation of the feed bobbin.This new device also enables the unwinding of the template yarn without any problems.

[0013] According to a preferred embodiment, the device has a control system which is configured to regulate the rotational speed of the take-up thread guide around the bobbin mandrel axis based on a yarn tension measured by the first thread tension sensor, as will be explained in more detail below.

[0014] Particularly reliable yarn tension control can be achieved when the first dancer arm is positioned between the bobbin mandrel and the thread tension sensor. This results in only damped fluctuations in yarn tension at the (downstream) yarn tension sensor, thus enabling reliable yarn tension measurement, as will be explained in more detail below. The dancer arm is a known device used to compensate for short-term fluctuations in the delivered quantity of feed yarn. The dancer arm consists of a thread guide, a lever, and a spring. The lever is pivotally mounted in a housing, with a first lever arm on one side of the pivot point and a second lever arm on the other. The thread guide, which changes the direction of the feed yarn, is held by the first lever arm.The spring is attached at one end to the housing and at the other end to the second lever arm. When the feed yarn changes direction around the thread guide, the lever pivots around its pivot point in the direction of yarn pull, with the spring resisting this pivoting movement with an opposing pull. If a change in yarn tension results in a momentary decrease in the feed yarn's pull on the thread guide, the spring's force becomes dominant and pivots the lever in its direction of pull. This increases the distance the feed yarn travels, thus maintaining tension in the feed yarn. The use of the first dancer arm ensures that only damped fluctuations in yarn tension are detected by the subsequent yarn tension sensor, resulting in a reliable measurement of the yarn tension. Yarn tension sensors are known in various designs from the prior art; for example, bending beam sensors are suitable.

[0015] Suitable feeding devices are known from the prior art; for example, the feeding device consists of a driven roller and a guide roller arranged offset from the driven roller. The guide roller can be rotatably or non-rotatably mounted. The feed yarn wraps around the driven roller and the guide roller multiple times, for example, seven times. This multiple wrapping creates a sufficiently high coefficient of friction between the roller surface and the feed yarn, enabling the feeding device to convey the feed yarn.

[0016] The winding device is of a design known in the art. It comprises at least a bobbin bearing held in a swivel arm for rotatably supporting the bobbin sleeve, a support roller for supporting the bobbin, and a drive mechanism for moving the yarn along a bobbin axis. The winding device and / or the bobbin sleeve can be driven directly via the bobbin sleeve support or alternatively by a drive mechanism for the support roller. The support roller can be a smooth roller or, alternatively, a grooved drum. The grooved drum represents a combination of a support roller and a drive mechanism. Alternative drive mechanism designs to a grooved drum include, for example, a vane drive or a belt drive.

[0017] Advantageously, the take-up thread guide is driven via a gearbox and a wing. The gearbox is mounted below the bobbin mandrel, and the wing enables concentric rotation of the take-up thread guide around the bobbin mandrel axis. The take-up thread guide is attached to an arm that is parallel to and oriented along the bobbin mandrel axis. This arm is mounted in the machine frame below the feed thread in an element, such as a lever or a disc, that is rotatable around the bobbin mandrel axis. This element is connected via a gearbox, such as a belt drive, to a drive mechanism, such as an electric motor. By arranging the gearbox in the machine frame below the bobbin mandrel, it is protected from contamination, and a simple design for the take-up thread guide is possible.

[0018] According to an embodiment of the invention that is advantageous for certain applications, the bobbin mandrel is mounted on a first end face in the machine frame, and the take-up thread guide is connected to the drive of the take-up thread guide via a wing arranged at a distance from the bobbin mandrel axis and rotatable about the bobbin mandrel axis. The wing is connected to the machine frame in the region of a second end face of the bobbin mandrel that points away from the machine frame. Such embodiments allow the radial distance between the bobbin mandrel and the take-up thread guide to be adjusted more easily, even after a feed bobbin has been placed on the bobbin mandrel. Preferably, a guide bobbin for receiving the feed yarn is provided on the bobbin mandrel. The guide bobbin serves, for example, to arrange a feed yarn, which is in the form of a loop-like structure without an inner core, around the bobbin mandrel.Such structures of pre-spool yarns are known, for example, from the production of viscose yarns. In the production of viscose yarns, no spools are formed; instead, the yarn is laid down in simple circular movements on a flat surface. These coreless spool-like structures can then be placed around a guide spool and formed into a spool by the proposed device.

[0019] Advantageously, a first thread guide is positioned in front of the first dancer arm. The rotating movement of the take-up thread guide results in a constantly changing direction from which the feed yarn reaches the first dancer arm. This is remedied by the first thread guide, which standardizes and thus stabilizes the yarn flow to the first dancer arm.

[0020] Furthermore, it is advantageous to have a second dancer arm and a second yarn tension sensor between the supply unit and the winding device. Due to the design of the winding device and the winding shapes it produces, fluctuations in the yarn speed approaching the spool can occur. For example, a simple change in the yarn at the respective ends of the spool can result in brief pauses in the yarn's approach at the reversal points. These pauses are more pronounced when producing conical spools. The use of the second dancer arm prevents these fluctuations from affecting the yarn tension and thus the quality of the spool being produced.

[0021] Preferably, a second yarn guide is positioned in front of the second dancer arm. By arranging a second yarn guide, it is possible to increase the wrap angle of the yarn guide of the second dancer arm, independent of the arrangement of the feed unit. The higher the wrap angle of the yarn guide of the second dancer arm, the more efficiently the short-term changes in the yarn path caused by the movements of the dancer arm are compensated for.

[0022] Advantageously, the winding device includes a backup roller for supporting the winding sleeve, with a backup roller axis. The backup roller is designed in two parts in the direction of the backup roller axis. Particularly when manufacturing conical precision cross-wound coils on known winding devices, so-called "snap threads" repeatedly appear at the coil end with the larger diameter—threads that are pressed off the respective coil edge. Likewise, a very poor coil structure with an irregular, bulgy winding pattern often results. This is due to the fact that the backup roller, which extends over the entire length of the coil and rests against the coil shell, follows a significantly lower circumferential speed of the coil shell section with the smaller diameter.Thus, the backup roller, which runs too slowly in the area of ​​its larger diameter compared to the peripheral speed of the bobbin, inevitably rubs and grinds against the bobbin surface in the area of ​​the larger diameter. This pushes the yarn leading up the bobbin over the edge or causes the yarn further inside to overlap. A two-part backup roller, as already proposed in CH 530 333, provides a remedy. Preferably, the two parts of the backup roller are connected by a spring, such that the two parts are pressed against each other in the direction of the backup roller axis. The two parts of the backup roller can then be easily pushed apart manually if necessary, for example, for cleaning purposes.

[0023] Preferably, the guide spool consists of an empty spool wrapped in fabric, on which the feed yarn is loosely laid. The fabric covering the guide spool prevents the entire feed yarn structure from rotating around the spool mandrel due to the tension exerted by the take-up thread guide. The coefficient of friction between the fabric covering and the feed yarn is higher than that between the individual threads of the feed yarn and the entire feed yarn structure. Using a fabric-wrapped empty spool as a guide spool improves the take-up behavior, particularly with feed yarns that have a smooth surface.

[0024] Preferably, an oiler is provided upstream of the supplying unit. If oiling of the feed yarn before winding is required due to subsequent processing steps of the wound yarn, the arrangement of an oiler upstream of the supplying unit is preferable, since the most uniform movement of the feed yarn occurs at this point in the rewinding process. Various designs from the prior art are possible for the oiler, for example, application of the oil by a drum rotating in an oil bath or by a brush supplied with oil.

[0025] Furthermore, a method for winding a feed yarn onto a bobbin case to form a bobbin is proposed, comprising a device with a control unit and a machine frame. The machine frame includes a rotationally fixed bobbin mandrel with a bobbin mandrel axis for receiving the feed yarn, a first dancer arm, a first yarn tension sensor for measuring yarn tension, a feed unit, and a winding device. A take-up yarn guide is arranged at a radial distance from the bobbin mandrel axis and is set into rotation about the bobbin mandrel axis by a drive. Based on the yarn tension measured by the first yarn tension sensor, the control unit regulates the rotational speed of the take-up yarn guide about the bobbin mandrel axis.The rotational speed of the take-up yarn guide around the bobbin mandrel axis determines, via the radial distance of the take-up yarn guide from the bobbin mandrel axis, a circumferential speed of the take-up yarn guide which corresponds to a take-up speed of the feed yarn. By regulating this take-up speed, a constant yarn tension can be maintained upstream of the supplying unit, even if the feed yarn is wound irregularly.

[0026] Advantageously, a second yarn tension sensor is provided between the feeder and the winding unit, and the feeder's rotational speed is regulated by the control system based on the yarn tension measured by this second sensor. This regulation prevents or corrects fluctuations in yarn tension before the winding unit. Uniform and constant yarn tension as the yarn enters the winding unit is a necessary prerequisite for producing a bobbin with consistent density and high quality.

[0027] Preferably, the control system maintains a constant winding speed of the winding device. A constant winding speed simplifies yarn tension control between the feeder and the winding device, and consequently also between the take-up yarn guide and the feeder. Changing the winding speed complicates yarn tension control, as it introduces an additional control variable into the system, alongside the yarn tension itself.

[0028] Advantageously, in threading mode or when stopped, the thread guide is rotated around the bobbin shaft axis by the control system as soon as yarn tension is measured at the first thread tension sensor. This provides a threading aid, preventing thread breaks during threading. It has been shown that thread breaks during threading can be largely avoided if, in threading mode, the thread guide rotates around the bobbin shaft axis at a speed of 1 to 200 revolutions per minute. During the threading process, the feed yarn can be manually removed from the feed spool and threaded into the various components without having to manually unwind the required amount of feed yarn from the feed spool or manually rotate the thread guide around the feed spool.

[0029] In a further development of the process, if a yarn breaks, the winding device and the take-up yarn guide are stopped, and the control system triggers an alarm. The first dancer arm is equipped with a yarn break sensor. This sensor detects the absence of yarn, thus indicating a break. The yarn break sensor can be implemented, for example, as a photoelectric sensor. Alternatively, measuring the movement of the dancer arm is also conceivable, as a lack of yarn tension causes the dancer arm's lever to be moved by the spring into an end position, which can be detected by an electrical contact or an inductive sensor. By stopping the winding and yarn take-up, damage to the components from flung yarn ends, as well as damage to the yarn on the spool and the feed yarn on the bobbin mandrel, is prevented.

[0030] The present invention is not limited to devices with vertically arranged mandrels or mandrel axes, but can also be used for devices for rewinding on, for example, horizontally arranged mandrels or mandrel axes.

[0031] Furthermore, a winding machine with a device according to the previous description is proposed.

[0032] Further advantages of the invention are described in the following exemplary embodiment. It shows: Figure 1 a schematic view of a winding machine according to the state of the art; Figure 2 a schematic view of a first embodiment of a device according to the invention; Figure 3 a schematic view of a second embodiment of a device according to the invention and Figure 4 a schematic view of a third embodiment of a device according to the invention.

[0033] Figure 1Figure 1 shows a schematic view of a winding machine according to the prior art. A winding station is shown, which serves to rewind yarn 3 from a feed spool 17 onto a spool 2. A winding machine can comprise several such winding stations. A machine frame 22 is erected on a foundation 21. A winding device 1 for winding yarn 3 and forming a spool 2 is held in the machine frame 22. The yarn 3 is taken as feed yarn 18 from a feed spool 17 and fed to the winding device 1 in a yarn direction 4. The feed spool 17 is designed as a spin-cake, with the feed yarn 18 wound onto a wire frame arranged centrally around an axis. In this case, the wire frame represents the feed spool 17, or together with the feed yarn, the spin-cake, which is held on a spool mandrel 19. The winding device 1 comprises a winding shaft 8 in which a winding sleeve 5 is rotatably held.The bobbin sleeve 5 is rotated in a direction 6 by a drive (not shown), thereby winding the yarn 3 onto the bobbin sleeve 5 and forming the bobbin 2. The bobbin shaft 8 is held in a pivot arm 7. The pivot arm 7 is rotatably mounted in the machine frame 22 on a pivot axis 9 above a support 11, allowing the pivot arm 7 to pivot about the pivot axis 9. During a winding process, the bobbin 2, or at the beginning of the bobbin formation, the bobbin sleeve 5, rests on a backup roller 12. The backup roller 12 is also rotatably mounted in the machine frame 22 in a support 14 with a backup roller shaft 13. The backup roller 12 is rotated in a direction 6 by the bobbin 2, which is resting on the backup roller 12, in a direction of rotation (indicated by an arrow).During a winding process, the diameter of the coil 2 steadily increases, and the distance between the coil axis 8 and the support roller 12 is compensated accordingly by the pivoting movement 10 via the swivel arm 7.

[0034] The feed yarn 18 coming from the feed spool 17 or spin cake is guided, in the yarn direction 4, after the feed spool 17 over a thread brake 16 and then through a changer 15 before reaching the support roller 12 and being wound onto the bobbin case 5. The changer 15 serves to move the yarn 3 back and forth parallel to a surface of the bobbin 2 in the direction of the bobbin axis 8 in order to achieve uniform winding or a predetermined winding characteristic. The feed spool 17 is held on a bobbin mandrel 19, which is fixed in the machine frame 26. The bobbin mandrel 19 or the feed spool 17 is rotatably mounted in the form shown, so that rotation (indicated by the arrow) about the bobbin mandrel axis 20 is possible.

[0035] Figure 2Figure 1 shows a schematic view of a first embodiment of a device according to the invention. The illustration shows a machine frame 22 erected on a foundation 21. Two winding stations are shown as examples within the machine frame 22. Each winding station has a winding device 1 and the elements necessary for guiding a feed yarn 18 to the winding device 1, which are accordingly held in the machine frame 22. A yarn 3 is fed by the winding device in a yarn direction 4. A feed yarn 18, ready for winding, is shown on a bobbin mandrel 19 held in the machine frame 22. The feed yarn 18 is arranged in the form of a winding around a bobbin mandrel axis 20. The feed yarn 18 is taken from the bobbin mandrel 19 by a take-up yarn guide 28 and subsequently guided via a first dancer arm 24 and a subsequent first yarn tension sensor 25 to a delivery unit 27.The feed unit 27 is equipped with a drive (not shown) and pulls the feed yarn 18 from the bobbin mandrel 19 over the first dancer arm 24 and the first thread tension sensor 25. The take-up thread guide 28 is held on a wing 30. The wing 30, which is arranged at a radial distance 29 from the bobbin mandrel axis 20, is connected to a gearbox 32. Via the gearbox 32, the wing 30, and thus the take-up thread guide 28, is set into rotation about the bobbin mandrel axis 20 by a drive 31. To achieve uniform thread tension at the feed unit, the thread tension measured by the first thread tension sensor 25 is used as a control variable 37 for controlling the drive 31 of the take-up thread guide 28 and thus its peripheral speed about the bobbin mandrel axis 20.

[0036] Figure 3Figure 1 shows a schematic view of a second embodiment of a device according to the invention. A description of the device parts identical to those of the first embodiment is omitted below. In addition to the first embodiment according to... Figure 2A guide spool 39 is provided for arranging the feed yarn 18 on the bobbin mandrel 19, thus improving the prevention of loop formation during the take-off of the feed yarn 18. Furthermore, a second dancer arm 34 and a second thread tension sensor 35 are provided between the feed unit 27 and the winding device 1. These serve to compensate for a momentary change in the winding speed that occurs at the ends of the bobbin due to the reversal of the changeover. For this purpose, the thread tension measured by the second thread tension sensor is used as a control variable 38 for the drive 36 of the feed unit. Also, in contrast to the first embodiment, a first thread guide 23 is provided between the take-off thread guide 28 and the first dancer arm 24.The first thread guide 23 achieves an increased deflection of the template yarn around the first dancer arm 24, which consequently contributes to an improvement in the compensation of fluctuations in the thread tension.

[0037] Figure 4 Figure 1 shows a schematic view of a third embodiment of a device according to the invention. A description of the device parts identical to those of the first and second embodiments is omitted below. In addition to the second embodiment according to... Figure 3An oiler 26 is provided between the first yarn tension sensor 25 and the feed unit 27. The oiler 26 applies an oil film to the running roving 18. Also, in contrast to the second embodiment, a second yarn guide 33 is provided between the feed unit 27 and the second dancer arm 34. The second yarn guide 33 achieves increased deflection of the feed yarn around the second dancer arm 34, which consequently contributes to improved compensation of fluctuations in yarn tension.

[0038] The present invention is not limited to the embodiments shown and described. Modifications within the scope of the claims are possible. Reference symbol list

[0039] 1 Winding device 2 Spool 3 Yarn 4 Yarn direction 5 Spool sleeve 6 Spool rotation direction 7 Swivel arm 8 Spool shaft 9 Swivel axis 10 Swivel movement 11 Support 12 Support roller 13 Support roller shaft 14 Support 15 Change 16 Thread brake 17 Feed bobbin 18 Feed yarn 19 Spool mandrel 20 Spool mandrel shaft 21 Foundation 22 Machine frame 23 First thread guide 24 First dancer arm 25 First thread tension sensor 26 Oiler 27 Feeder 28 Take-off thread guide 29 Spacing 30 Wing 31 Take-off thread guide drive 32 Gearbox 33 Second thread guide 34 Second dancer arm 35 Second thread tension sensor 36 Take-off drive drive 37 Take-off thread guide control variable 38 Control variable supplier 39 Guide coil

Claims

1. A device for rewinding feed threads (18) onto a bobbin tube (5) to form a bobbin (2), comprising a controller and comprising a machine frame (22), a rotationally fixed bobbin mandrel (19) with a bobbin mandrel axis (20) for receiving the feed thread (18), a first dancer arm (24), a first thread tension sensor (25) for measuring a thread tension, a delivery mechanism (27) and a winding device (1) being provided in the machine frame (22), the first dancer arm (24) and the first thread tension sensor (25) being arranged between the bobbin mandrel (19) and the delivery mechanism (27), characterized in that a take-off thread guide (28) is arranged at a radial distance (29) from the bobbin mandrel (19), the take-off thread guide (28) being provided with a drive (31) for rotating the take-off thread guide (28) about the bobbin mandrel axis (20).

2. The device according to claim 1, characterized in that the first dancer arm (24) is arranged between the bobbin mandrel (19) and the first thread tension sensor (25).

3. The device according to either claim 1 or claim 2, characterized in that the drive (31) of the take-off thread guide (28) is connected to the take-off thread guide (28) via a transmission (32) and a wing (30), the transmission (32) being mounted below the bobbin mandrel (19) and a concentric rotation of the take-off thread guide (28) about the bobbin mandrel axis (20) being provided via the wing (30).

4. The device according to any of claims 1 to 3, characterized in that a guide bobbin (39) for receiving the feed thread (18) is provided on the bobbin mandrel (19).

5. The device according to at least one of the preceding claims, characterized in that a first thread guide (23) is arranged upstream of the first dancer arm (24).

6. The device according to at least one of the preceding claims, characterized in that a second dancer arm (34) and a second thread tension sensor (35) are provided between the delivery mechanism (27) and the winding device (1).

7. The device according to claim 6, characterized in that a second thread guide (33) is arranged upstream of the second dancer arm (34).

8. The device according to at least one of the preceding claims, characterized in that the winding device (1) has a support roller (12), with a support roller axis (13), for supporting the winding tube (5), the support roller (12) being provided in two parts in the direction of the support roller axis (13).

9. The device according to claim 8, characterized in that the two parts of the support roller (12) are connected to a spring in such a way that the two parts are pressed against one another in the direction of the support roller axis (13).

10. The device according to at least one of the preceding claims if dependent on claim 4, characterized in that the guide bobbin (39) is formed from an empty bobbin wrapped with fabric, on which the feed thread (18) is loosely laid.

11. The device according to at least one of the preceding claims, characterized in that an oiler (26) is provided upstream of the delivery mechanism (27).

12. A method for rewinding a feed thread (18) onto a bobbin tube (5) to form a bobbin (2), comprising a device which has a controller and a machine frame (22), a rotationally fixed bobbin mandrel (19) with a bobbin mandrel axis (20) for receiving the feed thread (18), a first dancer arm (24), a first thread tension sensor (25) for measuring a thread tension, a delivery mechanism (27) and a winding device (1) being provided in the machine frame (22), characterized in that a take-off thread guide (28) is arranged at a radial distance (29) from the bobbin mandrel axis (20) and is set into rotation about the bobbin mandrel axis (20) by a drive (31), and in that a rotational speed of the take-off thread guide (28) about the bobbin mandrel axis (20) is controlled by the controller on the basis of a thread tension measured by the first thread tension sensor (25).

13. The method according to claim 12, characterized in that a second thread tension sensor (35) is provided between the delivery mechanism (27) and the winding device (1), and a rotational speed of the delivery mechanism (27) is controlled by the controller on the basis of a thread tension measured by the second thread tension sensor (35).

14. The method according to claim 12 or 13, characterized in that a winding speed of the winding device (1) is held constant by the controller.

15. The method according to at least one of claims 12 to 14, characterized in that in a threading mode or in a stop state, the controller sets the take-off thread guide (28) into rotation about the bobbin mandrel axis (20) as soon as a thread tension is measured at the first thread tension sensor (25).