CN117088195A

CN117088195A - Sleeve delivery system and method for operating such a sleeve delivery system

Info

Publication number: CN117088195A
Application number: CN202310538274.5A
Authority: CN
Inventors: A·斯蒂芬; B·施汤; 杰拉尔德·屈斯特斯; N·舍默尔
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2022-05-18
Filing date: 2023-05-12
Publication date: 2023-11-21
Also published as: DE102022112507A1

Abstract

The application relates to a sleeve conveying system for conveying spinning sleeves arranged on a conveying tray for a textile machine for producing cross bobbins, comprising a controller, a feed section for winding spinning sleeves to be unwound, a return section for unwinding spinning sleeves, and a plurality of transverse sections arranged between the feed section and the return section. They each have an unwinding position for the spinning sleeve to be unwound and an inlet region arranged between the unwinding position and the feed section with a plurality of waiting positions. In the transverse section, first conveying means are arranged which cooperate in a form-locking manner with the conveying disks for feeding the conveying disks into the unwinding position and for removing the conveying disks from the unwinding position. In the entry area of the transverse path, a second conveying device is arranged which cooperates in a form-locking manner with the conveying tray in order to transport the conveying tray into one of the waiting positions or back onto the feed path.

Description

Sleeve delivery system and method for operating such a sleeve delivery system

Technical Field

The application relates to a sleeve conveying system for conveying spinning sleeves arranged on a conveying tray for a textile machine for producing cross bobbins, having a controller, having a feed section for winding the spinning sleeves to be unwound, having a return section for unwinding the spinning sleeves, and having a plurality of transverse sections arranged between the feed section and the return section, each transverse section having a plurality of waiting positions arranged in an inlet region of the transverse section and an unwinding position for the spinning sleeves to be unwound, wherein in the transverse sections a first conveying device is arranged for feeding the conveying tray to the unwinding position and for removing the conveying tray from the unwinding position, respectively. Furthermore, the application relates to a method for operating such a sleeve delivery system.

Background

Many spinning machines, such as ring spinning machines, produce yarn on small capacity spinning sleeves that are not suitable for further processing, so-called spin cops. It is therefore necessary to rewind the yarn onto a high capacity bobbin sleeve suitable for further processing, in particular a cross bobbin. For example, about 100 cops are wound onto such a bobbin sleeve. Where the cop run time is typically only one to three minutes. The winding station of the winder must permanently supply the wound cop. Also, the unwound spinning sleeve must be removed from the winding station.

Modern winding machines are equipped for this purpose with automatic sleeve transport systems. The cops are here individually placed on spindles of a transport disc, on which they are transported in a transport system. Such a sleeve transport system comprises in particular a feed section on which the wound spun cop is fed and a return section on which the unwound sleeve is removed. Between the feed and return sections, a plurality of transverse sections are arranged which lead to the individual winding stations and extend essentially perpendicularly to the feed and return sections and connect them to one another. The unwinding position for unwinding the spinning sleeve yarn and the one or more waiting positions arranged in the inlet region of the transverse section are located in each case in the transverse section.

A sleeve conveyor system of this type is known from DE4338552C2, in which a drivable conveyor belt running along the machine is arranged in each of the feed and return sections. A conveyor belt is also provided in each transverse section, so that the sleeves are transported in a friction-locking manner in the system. For such a conveyor system there is a risk of the conveyor pan getting stuck and this will lead to congestion, in particular in the entrance and exit areas of the lateral road sections.

A further embodiment of a sleeve conveyor system is known from DE102012016482A1, in which a positively locking conveyor is arranged in each transverse conveyor section. The conveyor device can be designed as a conveyor tray or as a conveyor belt with a drive. The conveyor device transfers the conveyor trays from the entrance area of the traverse section to the unwinding position and conveys them from the unwinding position to the exit area of the traverse section.

Disclosure of Invention

The object of the application is to provide a sleeve transport system which can reliably supply sleeves to the individual winding stations and can reliably transport sleeves away from the winding stations. Furthermore, a corresponding method will be presented.

The object is achieved by a sleeve delivery system and method having the features of the independent patent claims.

A sleeve conveying system for conveying spinning sleeves arranged on a conveying tray for a textile machine producing cross bobbins, having a controller, a feed section for winding the spinning sleeves to be unwound, a return section for unwinding the spinning sleeves, and a plurality of transverse sections arranged between the feed section and the return section, each having a plurality of waiting positions arranged in an inlet region of the transverse sections and an unwinding position for the spinning sleeves to be unwound. The transverse link connects the feed link and the return link. First conveying means for feeding the conveyor tray to the unwinding position and for removing the conveyor tray from the unwinding position are arranged in the transverse path respectively.

It is proposed to arrange in the entry area of the transverse path section a second conveying device for conveying the conveyor pan to at least one waiting position or back onto the feed path section, respectively. In a corresponding method, the transport reels are fed to and removed from the unwinding position by means of a first transport device arranged in the transverse section, characterized in that the transport reels are transferred to at least one of the waiting positions or returned onto the feeding section by means of a second transport device arranged in the inlet area of the transverse section. With the aid of such a second conveying device in the transverse conveying path, the spinning sleeves arranged on the conveying disc can now be taken over from the feed path and brought to the waiting position in a particularly safe manner. In this way, jamming of the conveyor tray in the inlet region of the transverse path can be avoided. This also makes it possible, if desired, to transfer the spinning sleeve arranged on the transport disc from one of the waiting positions to the transport device arranged in the region of the unwinding position at any time. In this way, the spinning sleeve can be fed particularly safely and quickly via the transport disc to the unwinding position. It is also particularly advantageous if the spinning sleeve can be transported back to the feed section by means of a second conveying device arranged upstream of the first conveying device, if desired by means of its conveying disk. It is particularly advantageous here if the spinning sleeve arranged on the respective transport disc can already be checked and, if necessary, returned before it is fed to the unwinding position. Thus, by transferring the spinning sleeve to the waiting position or by returning any incorrect sleeve onto the feed section, the winding operation is not unnecessarily interrupted.

As already mentioned, in such a sleeve transport system, the spinning sleeve is transported by means of a transport disc. Accordingly, within the scope of the present application, delivery of the delivery disc is described solely by its interaction with the delivery device and the various devices of the sleeve delivery system. It goes without saying that the transport of the transport tray in the sleeve transport system also transports the spinning sleeve arranged on the transport tray.

It is particularly advantageous if the first conveyor device and the second conveyor device can be driven independently of one another, in particular can be driven reversibly, by means of their own drives, in particular stepper motors. This also makes it possible to activate the second conveying device during the ongoing unwinding process of the assigned winding station, so as to take over the spinning sleeve from the feed section and transfer it to the waiting position, or to transfer the spinning sleeve from one of the waiting positions back to the feed section. This ensures that at least the waiting position closest to the unwinding position is always equipped with the correct spinning sleeve, so that no unnecessary waiting time is required at the winding station. In contrast, in the prior art, it is possible to continue the transport of the spinning sleeve only when the winding process at the respectively assigned winding position is completed. In this method, it is accordingly advantageous if during unwinding of the spinning sleeve in the unwinding position the first conveying device is stationary and the second conveying device is driven, in particular rotated, to fill at least one waiting position.

It is also advantageous if the first conveying device and/or the second conveying device are designed as rotatable disks, which have a plurality of entrainment areas for the conveying disks of the spinning sleeve. The entrainment region is used here for the form-locking transport of the transport disk and thus also for the spinning sleeve and accommodates the guide region of the transport disk. In particular, if the first and the second conveying device are designed as rotatable disks, the spinning sleeves placed on the conveying disks can be taken over and handed over in a particularly reliable manner. Once the sleeves are received in the entrainment region, they are reliably transported further and thus can be prevented from unintentional slipping back and possible jamming of the sleeves. Preferably, each disc has three entrainment regions. It is also advantageous if the disc is star-shaped. The entrainment zone can thus be designed relatively spacious and deep, so that a particularly safe transport is achieved without the risk of tilting. However, more than three entrainment areas are also conceivable, which also allows more waiting positions. Likewise, the disk may have ratchet-like entrainment regions.

Furthermore, it is advantageous if the second conveying device is arranged upstream of the first conveying device, preferably immediately, with respect to the normal conveying direction. The conventional conveying direction is understood here to mean the direction in which the spinning sleeve or the conveying disc is conveyed from the feed section to the respective unwinding position. The second conveying device can thereby directly convey the spinning sleeve, which is taken over from the feed section, to the first conveying device. In this method, it is advantageous to transfer the conveyor tray from the second conveyor to the first conveyor, preferably directly to the first conveyor. At the same time, the second conveying device prevents the spinning sleeve from sliding back in the direction of the feed section, so that the transfer to the first conveying device can be carried out particularly reliably and the spinning sleeve can be supplied to the winding station particularly reliably.

It is particularly advantageous if the first conveying means and the second conveying means are arranged to overlap each other. In other words, this means that the motion trajectories of the conveyor devices at least partially overlap. The transfer of the spinning sleeve from the second conveying device to the first conveying device can thereby be carried out more safely.

It is also advantageous if the first conveyor and/or the second conveyor can be moved cyclically, or in the method the first conveyor and the second conveyor are moved cyclically for conveying the conveyor tray. For example, if the conveyor has three entrainment regions, the angle of the movement cycle will extend over 120 °. The cyclic movement thus moves the spinning sleeve precisely from one position to another, for example from a first defined waiting position to a second defined waiting position and from the second waiting position to an unwinding position. This further supports the safe transport of the spinning sleeve through the transverse section.

According to an advantageous development of the application, the entrainment region of the second conveying means is also designed differently from the entrainment region of the first conveying means. The shape of the entrainment zone can thus be optimally adapted to the contour of the guide rail of the transverse section, so that the spinning sleeves or the conveying disks carrying them can be conveyed with as little friction as possible.

The contour of the entrainment region is designed, for example, in such a way that as small an angle as possible is produced between the resultant force directions at the contact points of the conveyor disk, the conveyor device and the guide rail. For example, in the inlet region of the transverse section to which the second conveyor is assigned, the angle of the guide rail to the direction of the feed section and the return section differs from the angle in the outlet region to which the first conveyor is assigned. Also, the curvature of the rail in the inlet region is different from the curvature in the outlet region.

It is also advantageous if the sensor for detecting the spinning sleeve entering the transverse section is arranged in the entry area of the transverse section and connected to the controller. In the method, a spinning sleeve entering the transverse section is detected by at least one sensor and recorded in a controller. It is thus possible to record whether the first waiting position closest to the entrance area of the transverse section is filled correctly and, if necessary, whether the switch controlling the entry of the spinning sleeve into the transverse section has to be activated. The sensor is preferably arranged in the joining region of the transverse section, which is directly adjacent to the feed section.

It is also advantageous if the controller has a counter for determining the number of movement cycles of the first conveyor and/or the number of movement cycles of the second conveyor. In this method, it is accordingly advantageous if the number of movement cycles of the first conveyor and/or the number of movement cycles of the second conveyor is counted in the controller. For example, depending on the number of movement cycles of the second conveying device, it can be recorded whether the spinning sleeve, after entering the transverse path, is transferred from the first waiting position to the second waiting position closest to the unwinding position. Also, for example, on the basis of the movement cycle of the first conveying device, it can be recorded whether the spinning sleeve is in the unwinding position or has been moved to the exit area of the transverse section. It is therefore not necessary to provide a sensor for detecting the spinning sleeve in each waiting position and/or unwinding position.

In this method, it is also advantageous if the filling state of the waiting position is determined on the basis of the number of spinning sleeves entered detected by the at least one sensor and the number of movement cycles of the first and/or second conveying device. Based on this information, the controller can calculate at any time whether or not there is a spinning sleeve in the waiting position. The filling level of the waiting position is thus monitored by a controller, which for this purpose communicates with the winding station and the sleeve transport system.

It is also advantageous if a sensor, in particular an RFID reader, for detecting the spinning sleeve in the unwinding position and/or in the at least one waiting position is arranged in at least one of the unwinding position and/or the waiting position. In this method, it is accordingly advantageous to check the yarn type of the spinning sleeve in the unwinding position and/or in the at least one waiting position by means of at least one sensor, in particular an RFID reader, and to transfer the spinning sleeve with the incorrect yarn type back onto the feed section or into the return section without unwinding. With such a sensor, it is thus possible to detect not only whether there is a spinning sleeve in the respective waiting or unwinding position, but also whether it is a correct spinning sleeve, i.e. a spinning sleeve with the correct yarn type. For this purpose, the spinning sleeve is provided with a transponder, which can then be checked by means of a sensor. If such RFID readers are already arranged in one of the waiting positions, the wrong spinning sleeve can be sorted out before they reach the unwinding position. Unnecessary interruptions in the winding process can thereby be avoided.

Finally, it is also advantageous if a clamping device, in particular a spring-loaded clamping device, for the spinning sleeve fixed in the unwinding position is provided in the unwinding position. Thereby, even if the adjacent spinning sleeve moves in the waiting position, the spinning sleeve is well fixed in the unwinding position.

Drawings

Other advantages of the present application are described in the following examples. Schematically, respectively, in the drawings:

figure 1 shows a schematic front view as an overview representation of a textile machine producing cross-bobbins,

fig. 2 shows a top view of a sleeve conveyor system with a feed section, a return section and a plurality of transverse sections connecting them, and

fig. 3 shows a plan view of a transverse section of a sleeve conveyor system with two conveyors shown in detail.

In the following description of the drawings, the same reference numerals are used for identical and/or at least comparable features in different drawings, respectively. Individual features, their design and/or mode of action are generally only explained in detail at the first time of reference. Individual features, if not explained in detail, are designed and/or function in a manner corresponding to the design and function of the features already described with the same function or with the same name. Furthermore, for the sake of clarity, only one or a few of the various identical components or features are generally labeled.

List of reference numerals

1. Sleeve delivery system

2. Feeding section

3. Conveying disc

4. Return road section

5. Transverse road section

6. Spinning sleeve

7. Textile machine

8. Controller for controlling a power supply

9. Inlet area

10a first waiting position

10b second waiting position

11 unwinding position

12a first conveyor

12b second conveyor

13. Driver(s)

14. Entrainment region

15. Junction region

16. Sensor for detecting a position of a body

17. Clamping device

18. Spring

19. Winding station

20. Cross bobbin

21. Switch device

22. Outlet area

23. Bobbin sleeve

24. Conveying belt

25. Guide area

26. Guide rail

27. Clamping rod

28. Guide plate

Detailed Description

Fig. 1 shows a schematic front view of a textile machine 7 producing cross bobbins. In the present case, the textile machine 7 is designed as a winding machine and has a large number of winding stations 19 arranged side by side. The winding station 19 is designed to unwind the yarn from the spinning sleeve 6 and wind it onto the bobbin sleeve 23, producing a large volume bobbin. For this purpose, each winding station 19 has a plurality of working elements which enable a rewinding from the spinning sleeve 6 to the bobbin sleeve 23. These are well known and will not be explained in more detail here. The textile machine 7 also has a central controller 8 which controls the processes on the textile machine 7. The textile machine 7 also has a sleeve transport system 1 (see fig. 2), which will now be explained in more detail with reference to fig. 2 and 3. The sleeve transport system 1 also has a controller 8 (see fig. 3) which is connected to the central controller 8 of the textile machine 7 and/or to the controller of the winding station 19. A common control 8 may also be provided for the textile machine 7 and the sleeve transport system 1.

Fig. 2 shows a schematic plan view of a sleeve transport system 1 for such a textile machine 7. The sleeve transport system 1 loads the wound spinning sleeve 6, spun cops, usually by a ring spinning machine, not shown here, and feeds them to a separate winding station 19 for rewinding. Likewise, the unwound spinning sleeves 6 are returned from the winding station 19 to the sleeve transport system 1, which returns them to the ring spinning machine so that they can wind the yarn again.

For this purpose, the sleeve transport system 1 has, in a manner known per se, a feed section 2 extending along the textile machine 7, on which the spinning sleeve 6 is fed to the respective winding station 19 (see fig. 1). The return section 4, which likewise extends along the textile machine 7, extends substantially parallel to the feed section 2, which carries the unwound spinning sleeve 6 away from the winding station 19. Between the supply section 2 and the return section 4, a plurality of transverse sections 5 extend, which connect the supply section 2 and the return section 4 and in each of which an unwinding position 11 for the spinning sleeve 6 is arranged. Furthermore, according to the present example, two waiting positions 10a, 10b are each provided in the transverse section 5, in which more wound spinning sleeves 6 can be stored and from there can be transported further quickly to the unwinding position 11. The waiting positions 10a, 10b are arranged in an entry area 9 of the transverse section 5 facing the feed section 2. The spinning sleeve 6 leaves the transverse section 5 via an outlet region 22 of the transverse section 5 facing the return section 4.

The spinning sleeve 6 is transported on a transport tray 3 within the sleeve transport system 1. For this purpose, the transport disc 3 has a spindle (not shown) on which the spinning sleeve 6 is placed. The conveyor pan 3 also has a guide area 25 with which they are guided in guide rails 26 of the sleeve conveyor system 1. The guide rail 26 is formed in this case by a recess and a ridge of the guide plate 28. In the region of the feed section 2 and in the region of the return section 4, a conveyor belt 24 is arranged, which extends along the textile machine 7, for the friction-locking transport of the conveyor pan 3. For this purpose, the conveyor pan 3 is located on a conveyor belt 24. The conveyor belt 24 of the feed section 2 and the return section 4 runs in the opposite direction, as indicated by the arrow. On the other hand, in the transverse section 5, the conveyor pan 3 is conveyed in a form-locking manner, as explained with reference to fig. 3.

In the junction area 15 of the transverse section 5 directly adjoining the feed section 2, a switch 21 is also provided, which ensures, depending on its position, that the spinning sleeve 6 conveyed on the feed section is guided into the transverse section 5 or is transferred to the following winding station 19 at the respective winding station 19. According to the present example, a sensor 16 is also arranged in the joining region 15, which records whether the spinning sleeve 6 has entered the respective transverse section 5. In the unwinding position 11, there is also a clamping device 17 for the spinning sleeve 6, which secures the spinning sleeve in the unwinding position 11. In the present case, the clamping device 17 comprises a clamping lever 27 loaded by a spring 18. However, the clamping device 17 can also be designed as a pneumatic clamping device 17.

As can be seen from fig. 3, two positively locking conveyor devices 12a and 12b are each arranged in the transverse path 5. In the present case, they are designed as star-shaped, rotatable disks and according to the present illustration each have three entrainment regions 14 in which the transport disks 3 of the spinning sleeve 6 are transported in a form-fitting manner. The two conveying devices 12a and 12b each have their own drive 13 and can therefore also be driven independently of one another. The drive 13 is preferably designed as a stepper motor, so that the conveyor 12a, 12b can be driven stepwise or periodically and, as a result of the three entrainment regions 14, continue to rotate in the movement cycle at an angle of 120 ° in each case. The transport discs 3 with attached spinning sleeves are each transported from one position to the next in one movement cycle. According to the present illustration, the conveyor tray 3 is conveyed during a movement cycle from the second waiting position 10b to the first waiting position 10a by means of the second conveying device 12 b. Likewise, during a further movement cycle, the conveyor tray is pushed out of the first waiting position by the second conveyor 12b and transferred to the first conveyor 12a. Then, during the cycle of movement of the first conveyor 12a, the conveyor pan 3 is taken over by the first conveyor 12a and conveyed to the unwinding position 11. During a further movement cycle of the first conveyor 12a, the conveyor pan 3 is then moved from the unwinding position 11 into the exit region 22 of the transverse segment 5.

With reference to fig. 2 and 3, the function of the sleeve delivery system 1 will now be explained. The transport disc 3 with the spinning sleeves 6 arranged thereon is transported in the direction of the arrow (see fig. 2) over the feed section 2, wherein the transport disc 3 rests on a conveyor belt 24 shown in the upper part of the drawing. If the spinning sleeve 6 reaches the branch of the transverse section 5, it is either transported into the respective transverse section 5 or guided through the transverse section 5 and on the feed section 2, depending on the position of the associated switch 21.

At the winding station 19 shown on the far right in the figure, the switch 21 is, for example, in its lower or release position and thus releases the engagement area 15 of the transverse road segment 5. Due to the shape of the guide rail 26 and the movement of the conveyor belt 24 in this region, the conveyor pan 3 with the spinning sleeve 6 is thus guided into the transverse section 5. Normally, if there is no spinning sleeve 6 in the second waiting position 10b, the switch 21 is placed in the release position. This is registered by the interaction of the sensor 16 with the controller 8 of the sleeve transport system 1 and/or the controller of the winding unit 19 and/or the controller 8 of the textile machine 7, and the switch 21 is controlled by the controller 8. On the other hand, at the second winding station 19 from the right in the figure, both the unwinding position 11 and the two waiting positions 10a, 10b are filled. The switch 21 is accordingly in its upper or blocking position. Due to the shape of the guide rail 26 and the position of the switch 21 in this area, the incoming conveyor pan 3 with the spinning sleeve 6 is guided in this case past the associated transverse section 5. On the other hand, in the case of the winding station 19 shown at the far left in the drawing, there is one spinning sleeve 6 in both the unwinding position 11 and the two waiting positions 10a, 10b, so that the switch 21 is here also in the blocking position. By means of the switch 21, the feed of the spinning sleeve 6 to the respective winding station 19 can thus be controlled as desired.

On the other hand, at the second winding station 9 from the left in the figure, an initial state is shown in which both the unwinding position 11 and the waiting positions 10a, 10b are empty. The switch 21 is accordingly in its released position and the conveyor pan 3 with the rotating tube 6 is moved directly into the engagement area 15 of the transverse road section 5. This is recorded by a sensor 16, which is preferably designed as an optical sensor 16. The switch 21 now enters its blocking position to prevent the further conveyor pan 3 from moving in. Which may otherwise impede subsequent movement of the delivery devices 12a, 12b (see fig. 3) and may become jammed. It is therefore known that the transfer plate 3 with the spinning sleeve 6 is in the second waiting position 10b. The conveyor devices 12a, 12b now continue to rotate 120 ° about the movement cycle or step length and the conveyor pan 3 is pushed by the second conveyor device 12b from the second waiting position 10b into the first waiting position 10a. The second waiting position 10b is thus no longer occupied and the switch 21 is replaced in its release position, so that a further feed disk 3 with spinning sleeve 6 can be accessed. If the second waiting position 10b is then occupied again, the two conveyors 12a, 12b can continue the movement cycle rotated by 120 °. The switch 21 simultaneously returns to the blocking position. The first conveyor tray 3 is pushed from the first waiting position 10a into the unwinding position 11 by the first conveyor 12a and the second conveyor 12 b. Likewise, the second conveyor pan 3 is pushed from the second waiting position 10b into the first waiting position 10a by the second conveyor 12 b. The switch 21 can then be brought back to its release position so that the other conveyor pan 3 can be moved to the second waiting position 10b. It goes without saying that the transfer disc 3 can also be transferred from the first waiting position 10a to the unwinding position 11 if a new transfer disc 3 is not already present in the second waiting position 10b, but the winding station 19 has requested a new spinning sleeve 6.

The correct positioning of the conveyor tray 3 in the unwinding position 11 can be ensured here by an additional switch (not shown). The feed tray 3 with the spinning sleeve 6 in the unwinding position 11 is now fixed by the clamping device 17. The first conveyor 12a must not rotate during winding, as this would result in the conveyor tray being ejected. Since the two conveying means 12a, 12b are each driven by their own drive 13, the second conveying means 12b can now be driven separately during the winding process. If the first waiting position 10a is not occupied during the winding process, but the conveyor pan 3 has moved to the second waiting position 10b, the conveyor pan 3 can be pushed into the first waiting position 10b by a cycle of movement of the second conveyor 12 b.

When the unwinding process is completed, the winding station 19 sends a signal, if necessary via its controller 8, to the textile machine 7 and/or to the controller 8 of the sleeve transport system 1 and requests a new spinning sleeve 6 for the unwinding position 11. In this case, both conveyor means 12a, 12b are rotated further by one movement cycle. The spinning sleeve 6 unwound here is pushed out onto the return path 4 by means of its transport disc 3 via the outlet region 22 of the transverse path 5 by means of the first transport device 12a and a new spinning sleeve 6 is pushed out of the first waiting position 10a into the unwinding position 11 by means of its transport disc 3.

According to the present illustration, the first conveyor 12a and the second conveyor 12b are arranged here such that their movement paths slightly overlap. The transport of the spinning sleeve 6 from the first waiting position 10a to the unwinding position 11 is thus effected by two transport devices 12a, 12b, wherein the transport disc 3 of the spinning sleeve 6 is transferred from the second transport device 12b to the first transport device 12a. This makes the transfer particularly safe. In principle, however, it is also possible to arrange the two conveying means 12a, 12b at a distance from one another.

In the sleeve conveyor system 1, the second conveyor 12b can advantageously perform a movement cycle, while the first conveyor 12a is stationary. Thus, when the first conveying device 12a is stationary, the first waiting position 10a and the second waiting position 10b can be filled even when the spinning sleeve 6 is unwound at the unwinding position 11. The filling level of the waiting positions 10a, 10b is monitored here by communication between the winding station 19 and the controller 8 of the sleeve transport system 1 and/or the controller 8 of the textile machine 7. The number of transport trays and/or spinning sleeves that have entered the joining zone 15, the number of movement cycles of the respective transport device 12a, 12b, and any requests of the winding station 19 for a new spinning sleeve 6 in the unwinding position 11 are evaluated by the controller 8, if necessary by a plurality of controllers 8.

According to a further development of the application, not shown, an RFID reader can be attached at the unwinding position 11 or the first waiting position 10a for further monitoring of the entire material flow. The yarn type of the spinning sleeve 6 at the unwinding position 11 or the waiting position 10a can be checked by an RFID reader. For this purpose, the spinning sleeve 6 is equipped with a suitable transponder. In addition to the sensor 16, these RFID readers can also monitor the fill level in the unwinding position 11 or the first waiting position 10a. If an RFID reader is arranged at the unwinding position 11, it is advantageous if the "wrong" spinning sleeve 6 detected at the unwinding position is transferred directly onto the return path 4 by a further movement cycle of the first conveying device 12a or the two conveying devices 12a, 12b are not unwound. On the other hand, if the RFID reader is arranged in the first waiting position 10a, it is advantageous if the "wrong" spinning sleeve 6 detected in the first waiting position 10a is transported back onto the feed section 2 by the movement cycle of the second conveying device 12b counter to the normal direction of rotation. Of course, it is also conceivable to attach such RFID readers at both the unwinding position 11 and the first waiting position 10a. However, this is not necessary. However, it is not necessary to provide an RFID sensor in addition to the sensor 16 in the joining region. Likewise, an RFID sensor can also be arranged directly in the joining region 15, which records whether the spinning sleeve 6 has entered the respective transverse section 5 and at the same time checks the yarn type of the spinning sleeve 6.

The application is not limited to the embodiments shown and described. Modifications within the scope of the patent claims are possible as well as any combination of the described features, even if they are shown and described in different parts of the description or in different exemplary embodiments of the claims, as long as they do not contradict the teaching of the independent claims.

Claims

1. A sleeve conveying system (1) for conveying spinning sleeves (6) arranged on a conveying tray (3) for a textile machine (7) for producing cross bobbins (20), having a controller (8), having a feed section (2) for winding the spinning sleeves (6) to be unwound, having a return section (4) for unwinding the spinning sleeves (6), and having a plurality of transverse sections (5) arranged between the feed section (2) and the return section (4), each having an unwinding position (11) for the spinning sleeves (6) to be unwound and having a plurality of waiting positions (10 a, 10 b) arranged in an inlet region (9) between the unwinding position (11) and the feed section (2), wherein in each transverse section (5) a first conveying device (12 a) is arranged, which cooperates in a form-locking manner with the conveying tray (3) for feeding the conveying tray (3) to the unwinding position (11) and for removing the conveying tray (3) from the unwinding position (11),

in the inlet region (9) of the transverse section (5), a second conveying device (12 b) is arranged, wherein the second conveying device (12 b) cooperates in a form-locking manner with the conveying tray (3) to convey the conveying tray (3) to one of the waiting positions (10 a, 10 b) or to return to the feeding section (2).

2. Sleeve transport system (1) according to the preceding claim, characterized in that the first transport device (12 a) and the second transport device (12 b) can each be driven independently of each other by their own drive (13), in particular a stepper motor.

3. Sleeve conveyor system (1) according to one of the preceding claims, characterized in that the first conveyor (12 a) and/or the second conveyor (12 b) are designed as rotatable and preferably star-shaped discs, wherein each disc preferably has three entrainment areas (14).

4. Sleeve conveyor system (1) according to any one of the preceding claims, characterized in that the second conveyor (12 b) is arranged immediately upstream of the first conveyor (12 a) with respect to the normal conveying direction, wherein the entrainment areas of the first conveyor (12 a) and the second conveyor (12 b) are preferably arranged overlapping each other.

5. Sleeve transportation system (1) according to any of the preceding claims, characterized in that the first transportation means (12 a) and/or the second transportation means (12 b) are cyclically movable.

6. Sleeve conveyor system (1) according to any of the preceding claims, characterized in that the entrainment zone (14) of the second conveyor (12 b) is formed differently from the entrainment zone (14) of the first conveyor (12 a).

7. Sleeve transport system (1) according to one of the preceding claims, characterized in that in the entry area (9) of the transverse section (5), in particular in the joining area (15) of the transverse section (5), a sensor (16) connected to the controller (8) for detecting the spinning sleeve (6) entering the transverse section (5) is provided.

8. Sleeve transportation system (1) according to any of the preceding claims, characterized in that the controller (8) has a counter for detecting the number of movement cycles of the first transportation means (12 a) and/or the number of movement cycles of the second transportation means (12 b).

9. Sleeve transport system (1) according to one of the preceding claims, characterized in that in the unwinding position (11) and/or at least one waiting position (10 a, 10 b) a sensor (16), in particular an RFID reader, is provided for detecting the spinning sleeve (6) in the unwinding position (11) and/or at least one waiting position (10 a, 10 b).

10. Sleeve transport system (1) according to any of the preceding claims, characterized in that a clamping device (17), in particular a spring-loaded clamping device (17), for the spinning sleeve (6) fixed in the unwinding position (11) is provided in the unwinding position (11).

11. Method for operating a sleeve transport system (1) for transporting spinning sleeves (6) arranged on a transport tray (3) to a textile machine (7) producing cross bobbins (20), wherein the sleeve transport system (1) comprises:

a controller (8);

a feed section (2) for winding a spinning sleeve (6) to be unwound;

a return section (4) of the spinning sleeve (6) for unwinding;

and a plurality of transverse sections (5) arranged between the feed section (2) and the return section (4), each having a plurality of waiting positions (10 a, 10 b) arranged in the inlet region (9) and an unwinding position (11) for the spinning sleeve (6) to be unwound, wherein the transport disc (3) is fed into the unwinding position (11) and removed from the unwinding position (11) by means of a first transport device (12 a) arranged in the transverse sections (5), characterized in that the transport disc (3) is transferred to at least one of the waiting positions (10 a, 10 b) or returned onto the feed section (2) by means of a second transport device (12 b) arranged in the inlet region (9) of the transverse sections (5).

12. Method according to the preceding claim, characterized in that during unwinding of the spinning sleeve (6) in the unwinding position (11) the first conveying device (12 a) is stationary and the second conveying device (12 b) is driven, in particular rotated, to fill at least one waiting position (10 a, 10 b).

13. Method according to any one of claims 11 to 12, characterized in that the conveyor tray (3) is transferred from the second conveyor (12 b) to the first conveyor (12 a), preferably directly to the first conveyor (12 a).

14. Method according to any one of claims 11 to 13, characterized in that a first conveyor (12 a) and a second conveyor (12 b) for conveying the conveyor tray (3) are moved cyclically.

15. Method according to any one of claims 11 to 14, characterized in that the spinning sleeve (6) entering the transverse section is detected by means of at least one sensor (16) and recorded in the controller (8).

16. Method according to any one of claims 11 to 15, characterized in that the number of movement cycles of the first conveyor (12 a) and/or the number of movement cycles of the second conveyor (12 b) is counted in the controller (8).

17. Method according to any one of claims 11 to 16, characterized in that the filling state of the waiting position (10 a, 10 b) is determined on the basis of the number of incoming spinning sleeves (6) detected by at least one sensor (16) and the number of movement cycles of the first conveying device (12 a) and/or the second conveying device (12 b).

18. Method according to any one of claims 11 to 17, characterized in that the yarn type of the spinning sleeve (6) located in the unwinding position (11) and/or at least one waiting position (10) is checked by means of at least one sensor (16), in particular an RFID reader, and the spinning sleeve (6) with the wrong yarn type is transferred back onto the feeding section (2) or into the return section (4) without unwinding.