EP1129242B1 - Rotating station for reels - Google Patents

Abstract

The invention relates to a method for changing the winding-off direction of reels (W,W1) which are delivered in succession by a delivery station (1) in order to form a reel group (WG) in which the front faces of adjacent reels (W) are equally spaced (a) and the longitudinal axes (LA) of the reels (W) are in a line. In practise, it is sometimes necessary to arrange the preparation machine for producing a reel (W) in such a way in relation to the combing machine group being used that the reels that are delivered by the preparation machine have a different winding-off direction in the ejected winding-off direction to that necessary for the subsequent combing machine. It is therefore necessary to rotate the reels (e.g., 90° or 180°) whilst preserving the division of the reel group. To this end, the reels (W) that are delivered by the delivery station (1) (W) are gradually shifted crosswise to their direction of delivery by a receiving element (41, 42) of a rotating device (30), by which means they come to lie in a plane in which the longitudinal axis (LA) of the reel (W) lies, are rotated and can then be moved out of the area of the receiving element (42) in the direction of its longitudinal axis (LA).

Description

The invention relates to a method for changing the rolling direction of time successively dispensed from a dispensing station to form a Winding group in which the end faces of adjacent windings have the same distance have and the longitudinal axes of the winding lie in a line. Likewise relates the invention to devices for rotating a winding in a plane across its longitudinal axis, the respective device being provided with an axis of rotation.

The wraps produced on a preparation machine (e.g. cotton wraps) prepared by winding a wad of cotton on a sleeve and then under Generation of a demolition ejected from the preparation machine.

To supply the preparation machine with textile material (e.g. sliver), several rows of cans are placed on the infeed table of the preparation machine. These cans are placed on lines upstream of the preparation machine are filled and then via transport systems or by hand to the infeed table the preparation machine transported.

In order to keep the transport routes small and thus the time spent on the To minimize can transport, the preparation machine or its Infeed table with the can positions corresponding to the upstream machines (Routes) can be assigned.

Around the wraps manufactured by the preparation machine in a group about one Transferring the transport system to subsequent combers will be carried out by the Preparation machine ejected reel from a conveyor taken over and gradually assembled into a winding group, whereby Adjacent coils are arranged at a constant distance from each other. Such a device is e.g. from JP-52-25 125, the from the preparation machine dispensed wraps across the dispensing point over a Conveyor belt removed and assembled into a winding group. This Group is then transported by means of a transport system that is guided on a crane runway transferred to the respective combing machine. A similar facility is also out of the DE 197 20 545.3.

In the above versions, the preparation machine Assembled winding group taken over by the transport system and at the respective combing machine, the ends of the wound cotton web so are aligned so that the windings are in the desired unwinding direction.

To the material flow within the spinning mill according to the local Adjust conditions, it may happen that the subsequent Combing machine row rotated by 90 ° or 180 ° to the provided winding group be arranged in relation to the aforementioned statements. In this case would after winding the winding in the manner described above, the winding end in point in the wrong direction or the wraps are rotated by 90 °. That is, the The unwinding direction of the winding placed on the combing machine would be opposite to that desired direction of unwind, or the windings are not in the desired direction Unroll direction before.

In these cases it is necessary to close the winding in one plane of its central axis turn to achieve the desired roll direction.

From JP-54-8184 a device is known, the one of Preparation machine, ejected winding is transferred into a trough plate, which is connected to a rotating and lifting device. At this facility the trough plate is rotated via an angular gear, while at the same time a lifting movement is generated with the aid of a guide. Once the Has been rotated (in this case by 90 ° in the horizontal direction), the gripper arms of a transport system.

The arrangement shown is very complex and not suitable for forming a Winding group with appropriately aligned cotton ends.

A device is known from EP-A2-406 923, wherein a device is provided to change the orientation of thread spools. This facility is also very complex and also not intended or suitable for Creation of an even winding group.

The invention is therefore based on the object of a method or a device to propose that enables the orientation of the winding ends after delivery of a preparation machine in the simplest way to change, the Subsequent formation of an even winding group for transfer to subsequent transport system is guaranteed.

This object is achieved, on the one hand, by a method in which the windings discharged from the delivery station are rotated by at least 90 ° in a plane in which the longitudinal axis of the windings lies, and the windings are then gradually shifted in the direction of their longitudinal axis.
It is further proposed to gradually shift the dispenser dispensed from the dispensing station transversely to its dispensing direction via a receptacle of a rotating device, by means of which they are rotated through 180 ° in a plane in which the longitudinal axis of the dispenser lies and the dispenser is then removed from the Area of the recording are moved in the direction of its longitudinal axis.
This makes it possible to change the orientation of the unwinding direction in the simplest way, the horizontal transport direction for forming the winding group being able to be maintained. In addition, this horizontal transport movement can be used at the same time to push the reel directly onto the rotating device.

To protect the outer layer of the winding, it is further proposed that the Before and after the turning process, windings are moved transversely to their longitudinal axes. This means that the coils are removed from their conveyor before the turning process lifted off and then put back on again.

Furthermore, the invention is achieved by a device, means being provided are at the winding dispensed from a delivery station at intervals to move batchwise transversely to the direction of delivery to a group of wraps form, in which the end faces of adjacent windings an equal distance have and the longitudinal axes of the winding lie in a line and the device for rotating the winding protrudes at least partially into the displacement area of the winding and with at least two receptacles pointing in opposite directions is provided.

With this device it is possible to change the winding during its gradual To feed transport movement directly to and through the rotating device capture to change the orientation of the roll direction.

The means for shifting in batches can consist of a conveyor belt, which is driven by a controlled drive. This ensures that on the one hand there are no collisions during the winding transport and on the other hand one precisely aligned winding group for transfer to a transport system provided.

It is advantageously proposed to close the rotating device with a lifting device Mistake.

To the cross conveyor to provide the winding group on the necessary Limit size and to maintain the side distances between the wraps in the winding group it is proposed that the smallest distance between the Axis of rotation of the device and the end face of the completely on the receiving means deferred winding half the distance between the end faces of neighboring Corresponds to wrap within the group.

It is preferably proposed that the rotary device rotate the winding by 180 ° turns and around a winding division - seen in the direction of displacement of the winding - according to the specified distances between adjacent windings within the Group, moves.

To position the winding during the rotary movement on the To ensure rotating device, it is proposed that the receiving means are at least partially provided with a non-slip pad.

Furthermore, a device is proposed to solve the problem, the approximately vertically aligned axis of rotation of the receptacle outside the contact surface of the Coil is arranged to transfer the coil into a delivery position which it transfers to a subsequent means for generating a Group of windings in which the end faces of adjacent windings are the same Have distance and the longitudinal axes of which are in a line.

A further embodiment of the invention is proposed, the axis of rotation of the take-up direction of the winding from the dispensing station being arranged to the right or left outside the area which is located between the vertical planes in which the end faces of the winding lie.
This arrangement of the axis of rotation provides a structurally simple possibility of transferring the winding receptacle into a delivery position to a subsequent means for forming a winding group.

Furthermore, a method is claimed according to the main claim, wherein the packages delivered from the delivery station are picked up by a rotating device and transferred in the horizontal direction to a subsequent longitudinal conveyor, the packages being moved through an angle at an angle during their horizontal movement or directly before delivery to the longitudinal conveyor Plane rotated in which the longitudinal axis of the respective winding lies.
With this device, it is possible to fix the storage trough of the preparation machine and carry out the transfer to a subsequent longitudinal conveyor with the rotating device. This enables a simple design. This means that in addition to rotating the reel, the rotating device also takes on the task of transporting the reel.

To protect the wrap, especially its outer layer proposed to move the winding vertically before and after the turning process, so that it lies freely in the turning device during the turning and transport process.

In order to obtain a specific assignment to the following combers suggested turning the wrap 90 °. This allows the following Combing machines in their longitudinal direction parallel to the direction of ejection of the Preparation machine can be arranged, which in some cases is very advantageous for is the subsequent material flow.

The invention is also achieved by a device, the device for Rotating the winding around a vertical axis of rotation in a guide element horizontally is slidably mounted and with at least one receiving means for receiving a wrap is provided, which is delivered by the preparation machine has been. The receiving means is fixed to the axis of rotation of the device connected to the wound package to a subsequent means for Transfer generation of a winding group.

It is preferably proposed that the device rotate the winding by approximately 90 ° and the means for forming the winding group is arranged such that the Direction of displacement of the winding, or the longitudinal direction of the means approximately parallel to Delivery direction of the delivery station is aligned.

Furthermore, it is proposed that the device be provided with at least four receiving means, which project outward from the axis of rotation thereof, at least two of the receiving means lying in a line.
With this cruciform arrangement of the receiving means, it is possible to rotate the axis of rotation of the device only in one direction of rotation, as a result of which the rotary drive can be considerably simplified. It is therefore no longer necessary to perform a reversing movement in order to resume a subsequent winding provided by the preparation machine.
With this arrangement, too, it is advantageous to provide the receiving means with a non-slip support in order to prevent the winding from sliding off during transport.

Further advantages of the invention are shown in the following exemplary embodiments described and shown.

Fig. 1

Eine schematische Draufsicht auf eine Kämmereistufe einer Spinnerei.

Fig. 2

Eine vergrösserte Seitenansicht X gemäss Fig. 1.

Fig. 3

Eine Seitenansicht nach Fig. 2.

Fig. 4

Eine schematische Draufsicht auf eine Kämmereistufe einer Spinnerei gemäss Fig.1 mit einen weiteren Ausführungsbeispiel.

Fig. 5

Eine Teilansicht nach Fig. 4 mit einem weiteren Ausführungsbeispiel

Fig. 6

Eine schematische Teilansicht einer Draufsicht einer Kämmereistufe (Fig. 4) im Auslaufbereich der Vorbereitungsmaschine

Fig. 7

Eine Seitenansicht X nach Fig. 6

Fig. 8

Ein weiteres Ausführungsbeispiel gemäss Fig. 6 in vergrösserter Darstellung

Show it:

Fig. 1

A schematic top view of a combing stage of a spinning mill.

Fig. 2

An enlarged side view X according to FIG. 1.

Fig. 3

2 shows a side view according to FIG. 2.

Fig. 4

A schematic plan view of a combing stage of a spinning mill according to Figure 1 with a further embodiment.

Fig. 5

A partial view of FIG. 4 with another embodiment

Fig. 6

A schematic partial view of a top view of a combing stage (FIG. 4) in the outlet area of the preparation machine

Fig. 7

6 shows a side view X according to FIG. 6

Fig. 8

Another embodiment of FIG. 6 in an enlarged view

Fig. 1 shows a combing stage of a spinning plant with a Preparation machine 1, on which cotton roll W (called roll) is produced become. The preparation machine 1 is provided with an inlet table 2, which can rows K11 and K12 are assigned. The jugs stripped slivers are fed and drawn to drafting systems, not shown Stretched non-woven fabrics. The non-woven fabrics are stacked on the infeed table 2 placed and fed together to a winding device 4 (Fig. 2). Before that generated cotton web 6 is fed to the winding device 4, this is not calender rolls shown in detail. The in the winding device 4 over the Winding rollers 7 and 8 formed winding W is after its completion via a Ram 10 ejected to the rear. During this process, the cotton wool web 6 separated, the end E abutting the outer circumference of the roll. In which Ejection process in the direction of the arrow, the winding W into a trough 15 Conveyor belt 14 is transferred, which is part of a cross conveyor 12.

The wraps W placed on the conveyor belt 14 are gradually in Arrow direction shifted and merged into a winding group WG. The Cross conveyor 12 extends in the range of motion of a sliding bridge 20, which is guided overhead on rails 21 and 22. Support the rails 21 and 22 itself on schematically shown carriers T on the floor. Like through one Indicated by the double arrow, the sliding bridge 20 can extend along the rails 21 and 22 move in both directions and is thereby shown by a not shown Drive source driven, which in turn is shown schematically in Fig. 3 Control device is controlled.

Parallel to the cross conveyor 12 are combing machines K1 to K5 in a row arranged, which are also run over by the sliding bridge 20. The individual combing machines K1 to K5 have swiveling troughs 24 which a group of eight reserve windings RW for the tracking in one Work position AP is on standby.

As can be seen in particular from FIG. 2, the windings W at Coil formation on a sleeve H provided with a clear diameter DL wound.

As shown schematically in FIG. 2, there is a height at the displacement bridge 20 adjustable gripper bar 26 attached, provided with individual gripper arms 27 which is for receiving the winding in the clear diameter DL of the sleeves H are pivotable.

The one on the individual combing heads (usually eight) of the combing machines Fibers produced are in the direction of the arrow to a drafting system, not shown transferred to the individual comber and to a comber belt summarized, which is stored in schematically shown cans K. The pitchers K are ejected after filling and by hand or via a Transport device in the schematically illustrated arrow direction for further processing transferred to subsequent machines.

The list of the combing machines for the preparation machine 1 shown in FIG. 1 can result from appropriate specifications in the material supply or removal.

By choosing this setup, it follows that the rolling direction of the Preparation machine ejected winding W with respect to the following Further transport to combing machines K1 to K5 in the wrong direction is available. This can be seen in particular from FIG. 2, wherein the on the trough 15th ejected winding W has a rolling direction in the clockwise direction, while the reserve winding RW resting on the trough 24 counteracts an unwinding direction clockwise. This is particularly evident from the presentation of the Winding visible, which is in the working position AP. That is why necessary that the winding W delivered by the preparation machine 1 before Takeover by the sliding bridge 20 can be rotated by 180 °. this happens at a turning station 30, which is explained in more detail with reference to FIGS. 2 and 3. The Turning station 30 has a frame 32 which is supported on the floor and there is attached. A cylinder 33 is attached to the frame 32, the piston rod 34 thereof is attached to a gear box 36. There is a motor M on the gearbox 36 flanged to a gear stage, not shown, within the Gearbox housing 36 drives. A drive element of this gear stage is with a Shaft 38 rotatably connected, which is rotatably mounted in a tube 40. The pipe 40 is non-rotatably flanged to the gear housing 36 and is in the frame 32 in vertical direction. At the lower end of the shaft 38 are two in opposite recordings 41, or 42 attached. The Recordings 41 and 42 can be designed as waves that e.g. with a non-slip pad are provided so that of the respective recording take up the wrapped position in the rotation. The distance b from the central axis DA of the turning station 30 to the end face of the winding W1 corresponds to that half distance a between the adjacent coils of a winding group WG. The result of this is that the winding W1 after turning has been turned through 180 ° the dash-dotted position is positioned so that the distance a to winding W4 previously rotated is retained.

As shown schematically, the empty sleeves H are on the inner drum of the Conveyor belt 14 is conveyed back to the preparation machine 1. A a more detailed description of this device is e.g. from DE-A1-197 20 545.3 remove.

The mode of operation of the rotating device 30 is explained in more detail below:

The winding W ejected by the preparation machine 1 passes through the gradual displacement in the direction of arrow of the conveyor belt 14 in the winding position W1, with this displacement the sleeve H with its clear diameter DL slides over the free end of the receptacle 41. As soon as the position is reached (which one is controlled via the division advance), also the gradual movement the conveyor belt 14 interrupted. The cylinder 33 is now a schematic shown control device S acts and moves its piston rod 34 in vertical direction by a predetermined amount. By the appropriate The transmission housing 36 and the tube 40 are also connected to the shaft 38 raised. At the same time, the recordings 41 and 42 also move in vertical direction upwards, causing the receptacle 41 on the inner surface of the sleeve H comes to mind. With further vertical displacement, the winding W1 from Belt 14 lifted off. After reaching a dash-dotted height the motor M is acted upon by the control unit S and thereby sets the transmission within the gear housing 36 in motion. As a result, the shaft 38 and thus the transducers 41 and 42 twisted in a horizontal plane until a Angle of rotation of 180 ° is reached and the winding W1 in the winding position W3 located. As soon as this position is reached, the motor M is stopped again and the Cylinder 33 acted upon by the control unit S. As a result, the piston rod 34 moved back down, the receptacle 41 also a vertical Downward shift. This shift continues until the Position, as shown in Fig. 3, is reached, with the winding W3 completely the conveyor belt 14 rests and the receptacle 41 has no contact with the Has more inner surface of the sleeve. After performing this turning process the winding end is now in the correct unwinding direction for the subsequent combing machines; the changing area W1 is empty again and ready for one subsequent recording. As soon as a new roll W from the preparation machine 1 has been returned to the conveyor belt 14, this will gradually move around again shifted one winding division until this new winding is again in the winding position W1 is located. This stepwise movement turns the previously rotated roll W3 in the winding position W4 shifted, whereby the pickup 42 freely rotate again can, in order to transfer a subsequent winding W1 into the winding position W3. As soon as a complete winding group WG in the area of the take-up by the grippers 26 the displacement bridge 20, a complete group can be e.g. be taken over to the K4 combing machine.

The proposed device enables simple and gentle Winding rotation, whereby the transverse displacement of the winding is directly included.

FIG. 4 shows a further system, the windings RW, which are available at the combers for reserve, rotated by 90 ° to the winding W, which is ejected from the preparation machine 1 onto a receiving trough 50. This machine setup can also result from the corresponding arrangement of the machines upstream and downstream of this process stage.
The same elements which have already been described in FIG. 1 are also provided with the same reference symbols in FIG. 4, so that they no longer need to be explained in more detail.
In Fig. 4 only two subsequent combing machines K1 and K2 have been shown. In practice, however, at least six combing machines are arranged after a preparation machine.
So that the unwinding direction of the coils on the combing machines is correct, a vertical axis of rotation 52 is provided, via which the trough 50 with the coils W is transferred via arm 54 to a transfer point US (shown in dashed lines). This swivel movement is marked with a double arrow.
As soon as the storage space on the conveyor belt 14 of the subsequent cross conveyor 12, which is opposite the transfer point US, is free, the winding W is transferred to the conveyor belt 14 via a ram 56 (for example a cylinder). In this case, 12 stops (not shown) can be provided on the cross conveyor in the region of the conveyor belt 14 in order to limit the roll path of the winding, so that it comes to rest safely on the conveyor belt.
In the present case, a complete winding group WG is already provided on the cross conveyor 12 for transfer to the shifting bridge 20 and for transfer to a subsequent combing machine which requests winding requirements.
As soon as the winding group WG has been removed by the crane bridge 20, the gradual conveying of the windings W delivered to the conveyor belt 14 can continue to form a new winding group WG, as already described above.
5 shows only a partial section of a system, the coils on the combing machine K1..K2 being rotated by 90 ° on the delivery trough 50 of the preparation machine 1, as in the example in FIG. In addition, the combing machines are set up rotated by 180 ° compared to the previous example, so that the winding process on the following combing machines runs in the opposite direction. That is, the winding W must be rotated by 90 ° on the one hand and the unwinding direction must be rotated by 180 ° compared to the solution shown in FIG. 4.
For this purpose, the trough 50 can be pivoted about an axis of rotation 58, as can be seen from a double arrow, the rolling direction also being reversed. The transfer to the conveyor belt 14 of a subsequent cross conveyor 12 also takes place here by means of a ram 56, as was described in the example above.

6 shows a further exemplary embodiment, the one from FIG Preparation machine 1 ejected roll W is delivered to a trough 50. In contrast to the example of FIGS. 4 and 5, the trough 50 is immovable appropriate. A cross conveyor 12 is parallel and next to the trough 50 arranged with a conveyor belt 14 around a winding group WG (as before described) for a subsequent transport system (not shown).

In the area of the transfer between the trough 50 and the shown end of the Cross conveyor 12 is a rotary station 60, which in particular also the enlarged side view X can be seen in FIG. 7.

The turning station 60 consists of a frame 72 which is supported on the floor. At the upper end of the frame 72, guide rails 70 are attached on both sides, which run transversely to the conveying direction of the cross conveyor 12 and the ejection direction of the preparation machine.
Wheels 69 of a carriage 68, in which the actual rotating device for the winding is rotatably mounted, run in these guide rails 72.
A carriage, which is attached to the frame, is assigned to the carriage 68, but is not shown for reasons of clarity. This displacement device could consist, for example, of a cylinder which engages on the frame 72 on the one hand and on the carriage 68 on the other hand in order to carry out the horizontal displacement indicated by a double arrow.

The rotating device consists of a cylinder 65 which is rotatably mounted (see double arrow) in the carriage 68. The rotary movement of the cylinder 65 is carried out by a schematically indicated drive 66, which is attached above the carriage. In the example shown, the cylinder has a piston rod 62, which is also referred to as an axis of rotation, about which the winding W is rotated.
At the end of the axis of rotation 62 a horizontally oriented receptacle 63 is attached, which in the example shown protrudes into the free space of the sleeve of the winding W lying on the trough 50.
As can be seen from FIG. 6, sensors S1 and S2 are attached in the region of the trough 50 and in the end region of the cross conveyor in order to monitor the presence of a winding W or W.

A drive 75 is also indicated in FIG. 7, which drives the deflection roller 77 of the belt 14 via the drive connection 76. The deflection roller 77 is mounted in the frame 78, which is supported on the floor.
The drive 75 is controlled via the control unit S, which also controls the preparation machine 1 and the movements of the rotating device 60.
The signals from sensors S1 and S2 are transmitted to control unit S for evaluation.

Der Steuereinheit S wurde vom Sensor S2 gemeldet, dass sich kein Wickel W' mehr an der Übergabestelle ( gestrichelt gezeichnet) befindet. Über den Zylinder 65 wird mittels der Aufnahme 63 der Wickel W um einen bestimmten Betrag angehoben, so dass er nicht mehr auf der Mulde 50 aufliegt. Anschliessend wird der Wagen 68 und somit die Aufnahme 63 über eine nicht gezeigtes Verschiebeelement bis zur Position B verschoben. Dann erfolgt die Drehung des Wickels um 90° (siehe Doppelpfeil) über den Drehantrieb 66 und den drehbar gelagerten Zylinder 65.

Jetzt wird der Wickel über den Zylinder 65 abgesenkt, bis er auf dem Transportband 14 aufliegt. Dies wird dann vom Sensor S2 an die Steuerung S gemeldet.

Sobald dieser Vorgang beendet ist, gibt die Steuereinheit ein Signal an den Antrieb 75, welcher die Umlenkrolle 77 und somit das Transportband 14 in Pfeilrichtung in Bewegung versetzt, solange bis der neue Wickel um eine entsprechende Wickelteilung verschoben ist und der Sensor S2 wieder meldet, dass der Aufnahmeplatz auf dem Transportband wieder frei ist. Zur Überwachung der exakten Wickelbewegung auf dem Transportband sind noch weitere, nicht gezeigte Sensoren vorhanden.

Bei dieser Verschiebung des neuen Wickels über das Transportband ist die Aufnahme 63 wieder frei geworden, wodurch diese anschliessend in entgegengesetzter Drehrichtung zurückverschwenkt wird. Aus dieser Stellung (B) kann dann die Aufnahme 63 über den Wagen 68 wieder in die Stellung A verschoben werden, sobald der Sensor S1 meldet, dass wieder ein neuer Wickel W auf der Mulde 50 vorliegt.

Der beschriebene Vorgang kann somit von neuem beginnen.

Sobald eine komplette Wickelgruppe WG auf dem Querförderer 12 vorliegt, kann diese vom nichtgezeigten Transportsystem übernommen werden.

Starting from position A (FIG. 6) of the axis of rotation 62, the function of the device is described below:

The control unit S has been informed by the sensor S2 that there is no more winding W 'at the transfer point (shown in dashed lines). The winding W is raised by a certain amount via the cylinder 65 by means of the receptacle 63, so that it no longer rests on the trough 50. Subsequently, the carriage 68 and thus the receptacle 63 are displaced to position B via a displacement element, not shown. Then the winding is rotated by 90 ° (see double arrow) via the rotary drive 66 and the rotatably mounted cylinder 65.

Now the winding is lowered over the cylinder 65 until it rests on the conveyor belt 14. This is then reported by the sensor S2 to the controller S.

As soon as this process has ended, the control unit sends a signal to the drive 75, which sets the deflection roller 77 and thus the conveyor belt 14 in the direction of the arrow until the new winding is shifted by a corresponding winding division and the sensor S2 reports again that the recording place on the conveyor belt is free again. To monitor the exact winding movement on the conveyor belt, there are further sensors, not shown.

With this displacement of the new roll over the conveyor belt, the receptacle 63 has become free again, as a result of which it is then pivoted back in the opposite direction of rotation. From this position (B), the receptacle 63 can then be moved back to the position A via the carriage 68 as soon as the sensor S1 reports that there is a new winding W on the trough 50 again.

The process described can thus start again.

As soon as there is a complete winding group WG on the cross conveyor 12, this can be taken over by the transport system, not shown.

The embodiment of FIG. 8 corresponds essentially to that of FIG. 6, only three further receptacles 63a, 63b and 63c being attached to the axis of rotation. With this device it is possible to dispense with the additional reversing movement of the axis of rotation after delivery of the winding W of the conveyor belt 14, as was necessary in the previously described device of FIG. 6. However, the rest of the movements are the same, so this need not be described again here.
In this case, as soon as the winding W deposited on the conveyor belt 14 has been transported further by one winding division, the rotating device (FIG. 8) can be moved in the direction of the position A in order to take up a new winding W there.

With the proposed devices, a simple and flexible adaptation to different configurations of the machines in the spinning room is possible, which always ensures the correct presentation of the windings on the combing machines.
With this concept it is also possible to integrate combing stages into existing plants without having to reorganize the entire machine park.

Claims (19)

1. A method for changing the rolling direction of laps (W, W1) being delivered from a delivery station (1) in a temporal sequence in order to form a lap group (WG), in which the laps (W) adjacent to face surfaces exhibit an equal distance (a) between each other and the longitudinal axes (LA) of the laps (W) lie in a line, characterised in that the laps delivered from the delivery station (1) are rotated in a horizontal plane in which the longitudinal axis (LA) of the lap (W) lies, and are then moved step by step in the direction of their longitudinal axis (LA).
2. The method according to Claim 1, characterised in that the laps (W) delivered from the delivery station (1) are displaced step by step transverse to their direction of delivery via a take-up device (41, 42) of a rotating device (30), by means of which they are rotated through 180° in a plane in which the longitudinal axis (LA) of the lap (W) lies, and the laps are then moved out of the area of the take-up device (42) in the direction of their longitudinal axis (LA).
3. The method according to Claim 2, characterised in that the laps (W1) are moved before and after the rotating process transversely to their longitudinal axes (LA).
4. The method according to Claim 3, characterised in that the laps (W1) are raised for the rotating process from a conveying device (14) by means of the rotating device (30), and, after the conclusion of the rotating process, are deposited on the conveying device (14) again.
5. A device for the rotating of a lap (W) for carrying out the method according to Claim 1, characterised in that the device (30) is provided with an axis of rotation (DA) and with means (12) for moving the laps (W) delivered at intervals of time from a delivery station (1) transversely to the direction of delivery, section by section, and the device (30) for rotating the lap (W) projects at least partially into the movement area of the lap, and is provided with at least two take-up means (41, 42) pointing in opposite directions.
6. The device according to Claim 5, characterised in that the means (12) for the movement section by section of the lap (W) are provided with a conveyor belt (14) which is driven in a controlled manner.
7. The device according to one of Claims 5 to 6, characterised in that the rotating device (30) is provided with a lifting device (33, 34).
8. The device according to one of Claims 5 to 7, characterised in that the smallest distance interval (b) between the axis of rotation (DA) of the device (30) and the face surface of the lap (W1) entirely pushed onto the take-up device (41) corresponds to half the distance interval (a) between the face surfaces of adjacent laps within the group (WG).
9. The device according to one of Claims 5 to 8, characterised in that the rotation device (30) rotates the lap (W) through 180° and moves it by a lap division - seen in the direction of movement of the lap - corresponding to the specified distance intervals between adjacent laps within the group.
10. The device according to one of Claims 5 to 9, characterised in that the take-up means (41, 42) are provided at least in part with a slip-resistant mounting.
11. The device for the rotating of a lap (W) for carrying out the method according to Claim 1, characterised in that the device consists of a take-up device (50) which is rotatably mounted, onto which laps delivered from the delivery station are conducted, whereby an axis of rotation (52, 58) aligned approximately vertically is arranged outside the contact surface of the lap (W), in order to convey the lap into a delivery position (US), from which it is passed by transfer means (56) to following means for the formation of a group (WG) of laps.
12. The device according to Claim 11, characterised in that the axis of rotation (52, 58) of the take-up device (50), seen in the direction of delivery of the lap (W) from the delivery station (1), is arranged on the right or the left outside the area located between the vertical planes in which the face surfaces of the lap lie.
13. A method according to Claim 1, characterised in that the lap (W) delivered by the delivery station (1) is taken up by a rotating device (60) and conveyed in the horizontal direction to a downstream longitudinal conveyor (12), whereby the lap (W), during its horizontal movement or directly before its transfer to the longitudinal conveyor (12) is rotated about an angle in a plane in which the longitudinal axis of the individual lap is located in each case.
14. The method according to Claim 13, characterised in that the laps (W) are moved in the vertical direction before and after the rotating process.
15. The method according to one of Claims 13 to 14, characterised in that the laps (W) are rotated through approximately 90°.
16. A device for the rotation of a lap (W) for carrying out the method according to Claim 13, characterised in that the device (60) is provided with a vertically-aligned rotation axle (62), and is mounted in a guide element (70, 72) so as to be capable of horizontal displacement, and is provided with at least one take-up means (63) for the laps (W) delivered at time intervals from a delivery station (1), whereby the take-up means (63) are securely connected to the rotation axle (62) and means (14, 77) are provided in order for the lap (W) taken up and rotated by the device (60) to be taken up and moved section by section in order to form a group (WG) of laps, whereby the means (14, 77) are provided with a controlled drive system (75).
17. The device according to Claim 16, characterised in that the device rotates the lap through approximately 90°, and that the longitudinal direction of the means (12) to form the lap group (WG) is aligned approximately parallel to the direction of delivery of the delivery station (1).
18. The device according to one of Claims 16 to 17, characterised in that the device (60) is provided with at least four take-up means (63, 63a, 63b, 63c), which project outwards from the rotation axle (62), whereby at least two of the take-up means (63, 63b/63a, 63c) in each case are located in a line.
19. The device according to one of Claims 16 to 18, characterised in that the take-up means are provided with a slip-resistant mounting.

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