WO2008098873A1

WO2008098873A1 - Spooling device

Info

Publication number: WO2008098873A1
Application number: PCT/EP2008/051520
Authority: WO
Inventors: Siegfried Theilig; Siegfried Heubaum; Hans-Jürgen Heinrich
Original assignee: Oerlikon Textile Gmbh & Co. Kg
Priority date: 2007-02-14
Filing date: 2008-02-07
Publication date: 2008-08-21
Also published as: DE112008000259A5; DE102007007245A1

Abstract

The invention relates to a spooling device and to a method for winding a thread (2) onto a bobbin. In order to change the thread, a changing device (1) which comprises a groove cylinder (3) having a groove (4) surrounding the periphery, comprising several intersections (5.1, 5.5), is provided. In order to guide the thread into a run-off point (7) for feeding into the groove of the groove cylinder, guiding means (6) are arranged in front of said groove cylinder. According to the invention, the guiding means can be displaced and can be guided in an alternating manner in several positions, such that the thread run-off point for feeding the thread into the groove of the groove cylinder lies respectively between adjacent intersecting points. The thread is then changed respectively between the intersecting points in several part lifts (17.1 - 17.4) and is wound onto part spoolings such that the bobbin is formed by several adjacent part spoolings.

Description

takeup

The invention relates to a winding device for winding a thread into a bobbin according to the preamble of claim 1 and to a method for winding a thread into a bobbin according to the preamble of claim 10.

In the textile industry, the winding of filaments, yarns and tapes for a compact and weiterverarbeitbare Speicheraufmachung has an outstanding importance. Depending on the application and winding speed, depending on the aufzuspulenden media and the Asked from the Aufspulaggregat strongly differing demands, a wide range of different winding machines offered by a number of manufacturers. On the other hand, it can be stated that it is possible for a certain number of groups of textile material, eg. B. film tapes made of polypropylene o- polyethylene or monofilament of polyamide, polyester and polypropylene winding devices that can wind up a relatively large range of textile material with high quality only by small variation of individual working elements with the same construction arrangement.

What is common to all is that a traversing or traversing device moves the thread running onto the spool onto the spool in such a way that a stable spool construction with as constant a packing density as possible and good running properties for the subsequent further processing is obtained. It should be noted that with increasing winding speed the complexity and thus the technical and especially the economic effort is constantly increasing.

For winding speeds up to about 4000 m / min are currently traversing devices of different designs, mainly with Kehrgewindewelle and traversing boats, in use. From winding speeds over 4000 - 8000 m / min is currently with a so-called Flügelchangierung, even under the Name BI-ROTOR-oscillation known, worked. These oscillations are very expensive due to the high technical complexity, the required accuracy and the difficult adjustability.

At take-up speeds of up to approx. 4,000 m / min, two systems have to be distinguished in the system of spiral-tipped shaft traverse boats: with and without a downstream grooved roller. The system without downstream grooved roller is the technically simplest and cheapest. The service life of the traversing boat is at least 1000 hours, but much more is required.

The traverse system with downstream Nutenwalze, as disclosed for example in DE 82 32 895, is technically complex and also much more expensive. The thread is transferred from the traversing boat in the Nutenwalze and stored by them very accurately on the coil winding. The traverse boat is longer and thus better over the intersections, so that at this point almost no wear is caused. Due to the greater length, the reversal points are designed to be much gentler, so that even here lower forces occur. The winding speed can be increased to approx. 4500 m / min with a corresponding service life of the trawling shuttle. The production of Nutenwalze is very expensive. The groove has at each point of the circumference a different shape (thread inlet) and another depth (traversing triangle). The entire grooved roller is protected against wear and corrosion by a special surface coating. The bearing of the Nutenwalze is located in the same housing as the Kehrgewindewelle, the drive is made with a constant gear ratio at the front end of the shaft of the Kehrgewindewelle. With this Aufspulart the highest quality coil construction - thus best drainage properties - can be achieved.

In the case of BI-ROTOR oscillation, as is apparent, for example, from EP 0 114 642 A1, two counter-rotating 3-armed wings are per winding point appropriate. They are connected from one winding unit to the winding unit by means of a toothed belt, so that the drive can take place centrally. It should be noted that one wing per winding unit is driven by a hollow shaft. Manufacturing technology particularly problematic are the wing tips. They must be designed and adjustable in such a way that the same stroke is present at each winding station and the yarn transfer at the coil ends takes place exactly from one wing to the other wing (position of the thread to the edge of the coil). With this traversing is currently wound up to 8000 m / min. The quality of the bobbin assembly corresponds approximately to that of the system Kehrgewindewelle-Changierschiffchen without Nutenwalze. Damage to the thread by hitting the wings on the thread when changing direction can not be ruled out. There are known producers who do not use wing winging for this reason.

As already mentioned, can be achieved with the Nutenwalze, as shown for example in DE 34 36 455 Al, the highest quality coil structure. For short strokes, a single curve (without intersection) is sufficient for exact laying of the thread. The Doppelhubzahlen can be increased almost arbitrarily, since only a simple rotational movement to the thread transfer is necessary, it is only the thread accelerated. If one now wants to increase the stroke (assuming the same roll diameter), the entry angle of the thread in the groove of the drum is so bad that the thread no longer runs in the groove, but only lingers on the surface of the drum and no longer shimmers. There are two ways to solve this problem. The first way is to increase the drum diameter so that the transmission angle is maintained. This option is preferred for circumferential drive and is hardly used for reasons of space.

The second way is to maintain the diameter and groove pitch. However, this creates intersections. These are the problem now. The thread does not run by itself outward over the intersection, it is Tools necessary. In practice, two different options are used.

The first option is to make the groove, which pushes the thread outwards, extremely deep. At the intersection, the groove, which leads inwards, becomes extremely flat. So it is possible to realize with a Nutaußendurchmesser of about 100mm strokes to about 150mm.

However, this method has the disadvantage that the thread length between the last run-off point of the thread in front of the bobbin and the casserole point on the bobbin fluctuates so much that the stretch limit of the thread is exceeded and thread damage occurs. Therefore, this principle is used only in natural fiber spinning for rewinding (eg from spinning machine to coil). Here just the amount is deducted from the cop, which is currently needed. In chemical fiber production, this principle is not applicable due to continuous delivery. Extreme damage to the thread is to be expected especially with POY yarns, as these are not yet fully stretched.

The second option, especially in the chemical fiber field, is the grooved drum with prechangling in the form of a counterbore shaft with a squeegee. This species combines two different types of oscillation in one and is correspondingly expensive.

With this Vorchangierung but you have the same problems as with the normal traverse with Kehrgewindewelle and thread shifter. The intersection points produce a high degree of mechanical wear, the reversal points load the yarn guide foot very heavily. Both together lead to a relatively rapid failure of the traversing system. The thread slider must be changed constantly. This results in a loss of production, which should be kept as low as possible by a long service life of the thread slider. Since the thread is placed exactly by the Nutenwalze, can at the reversal of the

- A - Kehrgewindewelle a larger radius can be selected. As a result, the accelerations and the resulting forces are reduced. Thus, the Doppelhubzahl and according to the winding speed depending on the advance of the Nutenwalze (peripheral speed of the Nutenwalze on the groove bottom is faster than the winding speed) by about 5% to 25% for the same life of the thread slider can be increased. If the original double stroke number is maintained, the lifetime increases to almost double.

With the present invention, the disadvantages that were previously associated with the use of a Nutenwalze be eliminated. It is intended in particular to a replacement of the Nutenwalze with Vorchangierung and Flügelchangierung.

It is also an object of the invention to provide a winding device of the generic type and a method for winding a thread to a coil, with which coils can be wound with the largest possible coil widths.

This object is achieved by a winding device with the features of claim 1 and by a method having the features of claim 10.

Advantageous developments of the invention are defined by the features and feature combinations of the respective subclaims.

According to the invention, the peculiarity of the thread is used, not to exceed the intersection of the groove on the circumference of the groove roller to the outside, but to commute between two adjacent intersections of the groove. This finding makes use of the invention in which the last thread run-off point in the thread run is held in each case between the corresponding crossing points of the groove in front of the groove roll. The yarn drain point of the yarn dens is held for entry into the groove on the circumference of the groove roller alternately between the adjacent intersection points of the groove, wherein the thread is alternated in several partial strokes between the intersection points and each wound to Teilaufspulungen. For this purpose, the guide means is designed to be movable, so that the thread discharge point is held alternately in several positions between each adjacent intersection points.

The development of the invention, in which the guide means is held in the positions such that the yarn discharge point is symmetrically between the adjacent intersection of the groove, is particularly advantageous for uniformly winding the Teilaufspulungen, in particular the yarn wound at a substantially constant yarn speed and yarn tension can be. In addition, a secure guidance of the thread in the groove on the circumference of the groove roller between the adjacent crossing points is ensured.

To be able to guide the incoming thread safely between the individual positions for winding the Teilaufspulungen, the yarn discharge point of the guide means is determined by a yarn guide, which is coupled to a controllable displacement drive according to an advantageous embodiment of the invention. The yarn guide can thereby lead and hold alternately in several positions within a guideway parallel to the grooved roller. This makes it possible to realize fast and safe position changes of the thread discharge point. By moving the thread guide this is transferred without delay directly to the next position to be approached.

The displacement drive is preferably associated with a control unit, by which the displacement drive can be activated outside a holding time of the thread guide. The holding times of the thread guide in one of the positions for winding one of the Teilaufspulungen are preferably determined by a control device which is coupled to the control device of the displacement device. So Any desired holding times of the thread guide and thus of the thread outlet point can be adjusted in front of the groove roller.

It should be expressly mentioned here that each point of discontinuity formed in the groove on the circumference of the groove roller is defined here as a crossing point in the form of an intersection of two groove sections or in the form of a meeting point of two groove sections. In that regard, a distinction is made at the circumference of the groove roller between a closed intersection and an open intersection. The closed crossing points are preferably formed at the end of a grooved roll to initiate a thread reversal during winding at the Teilaufspulung. In this case, a total stroke, which encompasses the entire winding width, can be formed both at the two ends of the grooved rolls by closed intersection points or open intersection points. Thus, in particular, the limitation of the total stroke in a multi-thread winding device is preferably formed by openly executed crossing points of the groove.

When winding the thread to the individual Teilaufspulungen the peripheral speed of the coil is kept substantially constant, so that a substantially constant yarn tension is maintained when winding it thread. For this purpose, the coil is preferably held on a projecting winding spindle, which is coupled to a spindle drive. The groove roller is connected to a roller drive, wherein the roller drive and the spindle drive can be controlled separately by the control device. This means that both the double strokes when the thread travels and the initial speed of the spool can be adjusted independently of each other.

When using a projecting winding spindle, the development of the invention is preferably used, in which a plurality of coils are wound simultaneously on the winding spindle. In each case, a thread guide is assigned to each groove of the groove roller, wherein the thread guides can be positioned together by the displacement drive for winding the partial windings of the coils. The method according to the invention is characterized in particular by the fact that the deflection of the thread during oscillation is limited to the part strokes and thus low thread tension fluctuations are caused by the traversing movement of the thread. This makes it possible to form very uniform partial windings which are produced with a substantially constant winding tension. Another advantage of the method is given by the fact that the traversed triangle formed between the thread discharge point and the traversing device can be kept short due to the partial strokes, which is particularly useful for a compact design.

In order to obtain particularly uniform thread layers in the individual Teilaufspulungen, the method variant is preferably used, in which the thread run-off point of the thread is held for entry into the groove in each case symmetrically between the intersection of the groove.

For reliable guidance of the thread, the thread discharge point is preferably determined by a thread guide, which is guided and held alternately in a plurality of positions along a straight guide track.

For winding the individual Teilaufspulungen the yarn drain point is preferably held stationary for a period of a holding time in the respective position. In this case, it is determined by the holding time, how much thread layers are stored in each case in the Teilaufspulungen.

The holding times of the thread discharge point can be specified individually and be formed equal or unequal size for each partial coil. In order to obtain a symmetrical coil structure of the coil, the method variant is preferably carried out, in which the holding times of the thread drain point to Wi- disgusting the Teilaufspulungen at the ends of the coil are greater than the holding times of the thread discharge point for winding the remaining Teilaufspulungen. So lets the thread drain point by a cyclical reciprocating movement in succession in each of the positions. The holding time at the ends of the coils for winding the respective Teilauspulungen is preferably twice as large as the holding time in the remaining Teilaufspulungen.

In order to be able to wind relatively large end diameter of the bobbin despite short hold times and thus low thread layers within the Teilaufspulungen, the thread drain point will take multiple lying within a coil width positions for winding the Teilaufspulungen.

The variant of the method in which the thread discharge point without holding times continuously changes the positions several times in succession is particularly suitable for obtaining a stable package structure in the case of a plurality of partial packages of the package. In this way, the individual thread transitions can be supplemented by individual thread layers when moving the thread discharge point.

In particular, to influence the winding tension, the groove roller and the coil can be driven independently. Thus, the peripheral speeds of the spool and the grooved roll can be matched to one another such that the grooved roll is driven with a slight lead.

The inventive coil is particularly suitable for storing a large amount of thread in a single coil. For this purpose, the thread layers are wound in several Teilspspulungen, which lie directly next to each other within the Spulbreite.

Preferably, the Teilaufspulungen be carried out with an equal diameter end diameter. However, it is also possible, for example, one of the Teilaufspulungen to identify the coil with a smaller diameter or a larger diameter. The invention will be explained in more detail with reference to some embodiments of the winding device according to the invention.

They show:

1 shows schematically a first exemplary embodiment of the winding device according to the invention, FIGS. 2 to 4 schematically show a further exemplary embodiment of the device according to the invention

Winding device in several operating states Fig. 5 shows schematically a coil structure of a coil according to the invention Fig. 6 shows schematically a further embodiment of the winding device according to the invention

In Fig. 1, a first embodiment of the winding device according to the invention is shown schematically. The embodiment shows a traversing device 1, which is formed by a grooved roller 3. At the periphery of the grooved roll 3 an endless groove 4 is introduced for guiding a yarn. The groove 4 runs helically on the circumference of the groove roller 3 and forms a plurality of crossing points 5.1, 5.2, 5.3, 5.4 and 5.5. The intersections 5.1 and 5.5, which are respectively associated with the ends of the grooved roller 3, have a closed Nutverlauf over the front ends and are referred to here as a closed intersection point 5.1 and 5.5. The crossing points 5.1 and 5.5 represent so-called reversal points, by which the maximum coil width of a coil 12 is determined. The intersection points 5.2, 5.3 and 5.4 are referred to as open intersection points, since the course of the groove sections extends to both sides of the intersection.

The grooved roll 3 is coupled to a roll drive 11 which drives the grooved roll 3 at a substantially constant peripheral speed. The grooved roll 3 is at a distance upstream of a guide means 6 for supplying a yarn 2. The guide means 6 has a displaceable yarn guide 7, which determines a yarn discharge point of the yarn 2 for entry into the groove 4 of the grooved roller 3. The yarn guide 7 is coupled to a displacement drive 8, which is controllable via a control unit 9.

For winding a coil 12 of the groove roller 3 is followed by a projecting winding spindle 14 which is rotatably supported on a spindle carrier 15. The winding spindle 14 is connected to a spindle drive 16. To accommodate the spool 12, a winding tube 13 is spanned on the circumference of the winding spindle 14, at the periphery of the thread windings of the coil 12 are placed. The spindle carrier 15 is designed to be movable in order to be able to execute an evasive movement with increasing coil diameter. Alternatively, however, there is also the possibility that the evasive movement takes place by a movably held groove roller.

The roller drive 11 and the spindle drive 16 are connected to a control device 10. The control device 10 is also coupled to the control unit 9 of the displacement drive.

In the embodiment of the winding device shown in Fig. 1, the guide means 6 is positioned for winding the yarn 2, that at the periphery of the winding tube 13, the Teilaufspulungen 17.1, 17.2, 17.3 and 17.4 result. For this purpose, the yarn guide 7, which determines the yarn discharge point of the yarn 2 to be fed to the groove roller 3, guided on a guide track parallel to the grooved roller in a position which is in each case between two adjacent crossing points of the groove 4. In the operating situation shown in Fig. 1, the yarn guide 7 is arranged in the position between the intersections 5.2 and 5.3. In this situation, the thread 2 is wound with short partial strokes to the partial winding 17.2. In the control device 10 control programs and algorithms are included, which determine the winding of the thread 2 to the coil 12. Thus, a holding time is specified via the control device 10, in which the yarn guide 7 remains in the respective position. Only when the holding time has expired, an activation of the displacement drive 8 via the control unit 9 in a next adjacent position. Thus, for example, after a predetermined winding cycle, each of the positions of the thread guide 7 would be activated several times. The partial discharges 17.1 to 17.4 are wound in succession up to a common final diameter. The individual holding times are preferably in the range of a few seconds. Depending on the yarn speed and the yarn denser, however, larger or smaller holding times can also be achieved.

In order to obtain a winding cycle with a reciprocating displacement of the yarn guide 7 and thus the yarn drain point, the holding times are twice as large in the positions for winding the partial coils 17.1 and 17.4 at the ends of the coil 12, as the holding times for winding the middle partial windings 17.2 and 17.3. Thus, each of the Teilaufspulungen 17.1 to 17.4 can be successively wound with few layers of thread, the winding cycle is repeated until a final diameter of the coil 12 is reached.

For further explanation, the sequence of a winding cycle is shown below in FIGS. 2 to 4 in a further exemplary embodiment of the winding device according to the invention. In the embodiment, a groove roller 3 is used with a groove 4, which has a total of four crossing points. The entire coil width is indicated in Fig. 2 by the capital letter H. The height of the traversing triangle, which extends between the yarn guide 7 and the axis of the grooved roll 3 is marked with the capital letter C. In Figures 2, 3 and 4, the yarn guide 7 and the yarn discharge point is shown in different positions during winding of the Teilaufspulungen 17.1, 17.2 and 17.3 of the coil 12.

In the example according to FIG. 2, the coil 12 is first wound up between the points 1 and 2 for 2 seconds at the beginning of the coil. The intersections of the groove 4 on the circumference of the groove roller 3 are characterized in this embodiment by the points 1, 2, 3 and 4. The last thread drain point 7 is located in the middle of these two points 1 and 2. In this position, a first Teilaufspu- tion 17.1 of the coil 12 is wound.

After this holding time, the last thread discharge point 7 is shifted to the right in the middle between the points 2 and 3. This situation is shown in FIG. The thread now oscillates between the two points 2 and 3 for another 2 seconds hold time. The coil thickness of the second Teilspspung 17.2 now reaches the size of the first Teilspspulung 17.1.

Thereafter, the last thread discharge point 7 is shifted further to the right between the points 3 and 4, as shown in FIG. The thread is wound here for another 4 seconds hold time. In the first 2 seconds, the thickness of the previous Teilspspungen 17.2 is wound up and then wound up for another 2 seconds, the new layers of Teilaufspulung 17.3. Thereafter, the last thread drain point 7 is shifted to the left (Fig. 3) and wound up for 2 seconds, the Teilaufspulung 17.2. The Teilaufspulung 17.2 is now as thick as the Teilaufspulung 17.3 on the right side. Now the last thread drain point 7 is shifted further to the left (FIG. 2). Here, as on the right side, partial winding 17.1 continues for 4 seconds, 2 seconds to reach the previous thickness and 2 seconds for the new layer. Thereafter, the thread drain point 7 is again shifted to the right and the winding cycle starts from the beginning. It is maintained until the coil 12 has reached its intended final diameter. In Fig. 5 is an exemplary embodiment of the coil according to the invention is shown in a half section. The coil 12 is held on a winding tube 13. The winding tube 13 has a catch slot 18 at the left end. In the area between the catching slot 18 and the spool 12, a thread reserve 22 is wound on the circumference of the winding tube 13. Such a thread reserve can be carried out preferably by moving the thread guide 7 in a simple manner.

The coil 12 is formed by the three juxtaposed Teilaufspulungen 17.1, 17.2 and 17.3. The Teilaufspulungen 17.1, 17.2 and 17.3 are wound directly adjacent to the winding tube 13. The distance forming between the partial windings 17.1, 17.2 and 17.3 is essentially dependent on the configuration of the intersection points on the circumference of the groove roller. In this embodiment, the distance is exemplified. The distance between the Teilaufspulungen 17.1, 17.2 and 17.3 is in the range of a few millimeters, so that he short thread pieces are generated at the transition between the Teilaufspulungen.

In principle, however, there is also the possibility that the bond between the individual Teilaufspulungen 17.1, 17.2 and 17.3 can be improved so that briefly the yarn guide 7 is guided back and forth between the positions in a continuous movement without holding time. Thus, over the entire coil width 12, a thread layer is formed, which extends over the distance between the partial windings 17.1 and 17.2 and the partial windings 17.2 and 17.3.

The coil 12 shown in Fig. 5 is shown in a half-finished state. In this state, the Teilaufspulung 17.3 is wound within a winding cycle to continue the Teilaufspulung 17.2 in the next step. In principle, it is possible, the final diameter of the coil 12 at each of the Align sub-packages 17.1, 17.2 and 17.3 evenly. However, it is also possible to carry different final diameters of the Teilaufspulungen 17.1, 17.2 and 17.3 in order to use these, for example, as a label of the coil can.

In Fig. 6, a further embodiment of a winding device according to the invention is shown schematically in a partial view. The embodiment is suitable for winding a plurality of threads. In this case, only two winding stations 23.1 and 23.2 of the winding device are shown. The structure of the winding device is substantially identical to the embodiment of FIG. 1, so that only the differences are explained below.

The traversing device 1 is likewise formed by a groove roller 3. The groove roller 3 extends over several winding units. At the periphery of the grooved roll 3 an endless groove 4 is introduced with a plurality of crossing points. The groove roller 3 is driven by a roller drive 11.

In the yarn path of the groove roller 3 is a guide means 6 upstream with a plurality of yarn guides 7. One thread guide is provided per winding unit. The yarn guides 7 are arranged on a guide rod 21 which extends parallel to the groove roller 4. The guide rod 21 is coupled to the synchronous adjustment of the yarn guide 7 with a displacement drive 8. The displacement drive 8 is formed in this embodiment by an adjusting gear 20 and a stepping motor 19. The stepper motor 19 is coupled to the control unit 9.

To accommodate several coils, the winding spindle 14 is held long projecting on the spindle carrier 15. The winding spindle 14 is driven by the spindle drive 16.

In each of the winding units 23.1 and 23.2 a coil 12 is wound with a total of three Teilaufspulungen 17.1, 17.2 and 17.3. In each of the winding units 23.1 and 23.2, the threads 2 can be wound parallel to each other according to the embodiment of Figures 2 to 4 to the Teilaufspulungen 17.1 to 17.3.

With this traversing system all advantages of the grooved roll are retained. The Doppelhubzahlen can be increased arbitrarily, because apart from the thread no further masses must be moved. After the holding times of 2 or 4 seconds listed in the exemplary embodiment according to FIGS. 2 to 4, a shifting of the last thread discharge point is necessary. At the travel speed and acceleration no high demands are made; they are technically feasible. It can also continue to be driven with overfeed, so that with the peripheral speed of the grooved roller, the thread tension on the coil and thus their hardness can be regulated. Self-threading is still possible. By any juxtaposition of corresponding partial strokes and almost all required total strokes can be realized.

Due to the short partial stroke, the traversing triangle can be kept much shorter. A multiple spinning is still possible because the structure of the grooved roller changes only insignificantly in their structural condition and the last drainage points can be summarized as before on a common device (rod). Since this rod must be movable in the new process, this results in another advantage. By a corresponding technical design of the displacement drive in conjunction with the software (expiry point is moved forward or backward outside the normal traverse stroke) can be set with this device, a thread reserve. The stroke size does not matter. A special device as usual is no longer necessary. The shorter part strokes also make an even better coil run possible, since with high probability the yarn tension differences during unwinding are not so great. Drawing reference list

1 traversing device

2 threads

3 grooved roller

4 groove

5.1 ... 5.5 intersections

6 guiding means

7 thread guide, thread drain point

8 displacement drive

9 control unit

10 control device

11 roller drive

12 coil

13 winding tube

14 winding spindle

15 spindle carrier

16 spindle drive

17.1, 17.2, 17.3 partial windings

18 catch slot

19 stepper motor

20 adjusting gear

21 guide rod

22 thread reserve

23.1, 23.2 winding unit

Claims

claims

1. winding device for winding a thread (2) to a Spu- Ie (12) with a traversing device (1) for traversing the thread (2) having a driven groove roller (3) with a peripheral circumferential groove (4) with a plurality Having crossing points (5.1 - 5.5), and with one of the grooved roller (3) upstream guide means (6) for guiding the thread (2) in a yarn flow point (7) for entry into the groove (4) of the grooved roll (3) characterized in that the guide means (6) is designed to be movable and is alternately durable in a plurality of positions such that the thread take-off point (7) for entry of the thread (2) into the groove (4) of the groove roller (3) respectively between adjacent intersections (5.1.

5.5) is located.

2. Winding device according to claim 1, characterized in that the guide means (6) is held in the positions such that the yarn discharge point (7) in each case symmetrically between the adjacent crossing points (5.1 - 5.5) of the groove (4).

3. Winding device according to claim 1 or 2, characterized in that the yarn discharge point of the guide means (6) by a yarn guide (7) is determined, which is coupled to a controllable displacement drive (8) and within a Nutwalze (3) parallel track alternately can be guided and preserved in several positions.

4. Winding device according to claim 3, characterized in that the displacement drive (8) is associated with a control unit (9) through which the displacement drive (8) outside a holding time of the thread guide (7) can be activated.

5. Winding device according to claim 4, characterized in that the control device (9) with a control device (10) is connected, through which the holding time of the yarn guide (7) in one of the positions for winding a Teilaufspulung (17.1 - 17.3) is predetermined.

6. Winding device according to claim 5, characterized in that the holding times of the thread guide (7) in the positions for winding the Teilaufspulungen (17.1 - 17.3) are unequal size.

7. Winding device according to one of claims 1 to 6, characterized in that the crossing points (5.1 - 5.2) of the groove at the two ends of the grooved roller (3) are closed out or open and running a limitation of Spulenbreie (H) of the coil ( 12) form.

8. Winding device according to one of claims 1 to 7, characterized in that the coil (12) is held on a projecting winding spindle (14) which is coupled to a spindle drive (16) that the grooved roller (3) with a roller drive ( 11) and that the Wai zen drive (11) and the spindle drive (16) by the control device (10) are separately controllable.

9. Winding device according to claim 8, characterized in that on the winding spindles (14) a plurality of bobbins (12) are simultaneously gewekk that the grooved roll (3) per spool (12) is associated with a yarn guide (7) and that the Thread guide (7) together by the displacement drive (8) for winding the Teilaufspu- lungs (17.1 - 17.3) can be positioned.

10. A method for winding a yarn to a spool, wherein the yarn is guided for traversing by a groove having a plurality of intersection points on the circumference of a driven grooved roll, wherein the yarn enters from a yarn discharge point in the groove of the grooved roll, characterized in that the yarn discharge point the yarn is held alternately between adjacent intersections of the groove for entry into the groove and that the yarn is alternated in several partial strokes between the intersection points and each wound to Teilaufspulungen.

11. The method according to claim 10, characterized in that the thread run-off point of the thread is held symmetrically for entry into the groove between the intersection points of the groove.

12. The method according to claim 10 or 11, characterized in that the yarn drain point is determined by a yarn guide, which is guided and held alternately in a plurality of positions along a straight guide track.

13. The method according to any one of claims 10 to 12, characterized in that the thread drain point for winding one of the Teilaufspulungen each persists for the duration of a holding time in the Teilaufspulung assigned position.

14. The method according to claim 13, characterized in that the holding times of the thread discharge point in the changing positions are unequal.

15. The method according to claim 14, characterized in that the holding times of the thread discharge point for winding the Teilaufspulungen at the ends of the coil are greater than the holding times of the yarn discharge point for winding the remaining Teilaufspulungen.

16. The method according to any one of claims 10 to 15, characterized in that the thread discharge point occupies multiple positions lying within a coil width for winding the Teilaufspulungen.

17. The method according to claim 16, characterized in that the thread discharge point changes position after a predetermined winding cycle.

18. The method according to any one of claims 10 to 17, characterized in that the thread discharge point without holding times continuously changes the positions several times in succession.

19. The method according to any one of claims 10 to 18, characterized in that the groove roller and the coil are driven independently.

20. Coil with an endlessly wound thread, in which the thread is wound within a package width (H) with a plurality of thread layers on a winding tube (13), characterized in that the thread layers are wound in several Teilaufspulungen (7.1 - 17.3), which lie within the coil width immediately next to each other.

21. Coil according to claim 20, characterized in that the partial coils (17.1 - 17.3) have an equal final diameter.