EP1810944A1 - Device for transporting bobbins for spinning machines - Google Patents

Abstract

The machine has a set of work stations (2, 12) with bobbin units (3, 10), and two bobbin belts (4, 7) mounted on the machine for evacuation of bobbins (5). A set of unloading devices (17) decreases the bobbins from the bobbin units. The unloading devices place the bobbins on the bobbin belts. The unloading devices are mounted at the individual bobbin units, at the work stations or at a robot (6). The robot is movable over the work stations.

Description

The present invention relates generally to a textile machine and more particularly to a spinning machine for the production of yarn according to the preamble of independent claim 1.

Many textile machines, in particular spinning machines, have several working or spinning stations. Textile machines where a yarn must be produced or rewound are usually equipped with their own winding units, which wind up yarn on bobbins to form coils. For the removal of the full bobbins, the textile machines usually a machine - called robot in this document - on which stores the full bobbins on a clearing or conveyor belt. The robot can move over several or all workstations or spinning stations and is among other things able to remove the (full) coils from the respective winding unit and store them on the Abräumband. The removal belt runs along the entire machine, passing each work station or spinning station, and serves to convey the coils deposited by the machine to one of the ends of the textile machine. Such devices are state of the art. The EP 393 363 A1 describes, for example, a textile machine constructed in this way. As can be seen from the figures of the document, it is known to design such textile machines on both sides, ie to provide spinning and working positions on both longitudinal sides, which supply a common removal belt.

Textile machines according to the preceding paragraph have proven themselves in practice, but have a disadvantage in raw material change or in so-called. Game changes (ie yarn with new properties is produced) on. The operation of the textile machine or the operation of the Abräumbandes is flawless as long as all workstations or spinning stations of the machine produce the same product or coils with the same yarn. Of course, it happens from time to time that the operator of the plant wants to change the production of the textile machine. Due to the structure of the machine, it is now not possible individual spinning or Operate jobs with the new settings or raw material until not the last job has finished with the production of the old assortment. This is due to the fact that textile machines have continuous drives and individual workstations can not be converted before machine downtime and on the other hand because the robot stores all the coils on the Abräumband and therefore distinguish the coils with the new batch from the coils with the old lot can. Of course, a "phasing out" of production on the entire textile machine worsens their productivity significantly: 99 percent of the jobs would be virtually run in the course or shut down until the very last unit has finished its production. In order not to worsen the efficiency / productivity of the machine too much, therefore, at a certain point in time, the entire machine is shut down and then each individual working or spinning station is changed over to the new raw material or to the new batch.

This problem is known and has already been partially solved by the experts by the structural design of a textile machine according to the DE 38 28 592 A1 or the Rieter open-end spinning machine BT-923. These two-sided textile machines have two Abräumbänder, so that each long side of the machine has its own Abräumband. In this way, it is possible to shut down and retrofit only one side of the machine, while the other side of the machine continues to produce. It is even possible that the two machine sides simultaneously produce two different yarns, since each side of the machine has its own removal belt and the full bobbins can therefore not be confused.

The above-mentioned productivity problem in commodity or assortment change but also remains through the structures according to the DE 38 28 592 A1 or the BT-923 only partially solved, because both machines require that an entire machine side is shut down or that production on this side of the machine with the new range will be resumed only when the last workstation has stopped production of the old range. Again, a variety of work or spinning stations are still, until their production can be resumed after the conversion of the entire one side of the machine.

For highly productive spinning processes every drop in the efficiency is to be judged very critically. The higher the production or delivery speed, the more the productive time of a machine counts. This is especially critical if the machine has to be changed because of a change in raw material or a batch change (the spinning station settings must be changed for the production of a new yarn). So far, as mentioned, the entire machine or an entire machine side had to be shut down, in order to then individually change all spinning positions. That is, with a machine having e.g. 200 units of work at least 100 working units (one side of the machine) have been transferred until all of the affected units of work, unit by unit, have been transferred. The productivity loss in a highly productive machine is thus very high.

In addition to this loss of productivity, however, machines according to the prior art have yet another disadvantage: In order not to deteriorate the efficiency of the machine too much, as mentioned above, the entire machine or the affected machine side is shut down at a certain point in time to the individual work - or spinning stations to change to the new raw material. The old raw material is thus not completely used up and is reject. Of course, this also represents a cost factor. In contrast to textile machines with continuous drives (for example ring spinning machines), in open-end machines this problem is alleviated somewhat by the fact that each spinning station can be shut down and retrofitted individually. However, production with the new raw material can not start until the last spinning unit has used up the old raw material. In order not to have to wait for this, all spinning stations (in the case of the BT-923 all spinning stations on one side of the machine) are shut down at a certain point in time and the remaining old raw material is disposed of. The reject production can thus be reduced, but not completely avoided, in open-end machines such as the BT-923.

The present invention is therefore based on the object to minimize the productivity losses of textile machinery in raw material or lot changes, caused by stopping and retrofitting of jobs.

This object is solved by the features in independent claim 1.

Further advantageous embodiments of the invention can be found in the dependent claims.

The inventive textile machine, it is now possible that several raw materials or lots are processed simultaneously. As a result, it is not only possible to process several assortments simultaneously on each side of the machine, but the changeover from one batch / raw material to a new one can also be carried out smoothly, ie. without collective stopping or starting several workstations or spinning stations, done. Thanks to the simultaneous use of several Abräumbändern it is now possible without collective interruption, workstation for workstation, as soon as at this the old fiber template has expired. The functionality is relatively simple. Each assortment has its own removal belt. For example, if you want to be able to change from an old to a new range, you will need two clearing edges. During operation, the bobbin tray will be placed in such a way that the full bobbins of the old assortment are always placed on the one removal belt (figuratively, for example, the right removal belt). If a workstation is now converted to the new range or raw material, the control is set so that the new full bobbins are placed on the other - for the new batch / raw material provided - Abräumband (in the example so the left Abräumband). In this way a continuous change of production from one assortment to the other is possible, without a collective interruption of production. Thanks to the inventive device is thus the only remaining loss of production in the changeover of the individual workstation, because the other workstations or spinning stations continue in the meantime, yes. The efficiency of the machine is thus maximized.

Of course, the inventive use of several Abräumbänder on a textile machine not only in production or lot change a significant advantage. On the same textile machine or textile machine side can also At the same time different products are produced. If two Abräumbänder used, two different products or yarns can be produced. If there are three trimming belts available and operable, three assortments or yarns can be processed at the same time. In 4 Abräumbändern there are 4 different products, etc. Thanks to the invention can thus not only the efficiency of the textile machine can be increased, but also their flexibility.

Of course, the invention is not limited to spinning machines. The invention can also be applied to winding machines or automatic winder. In such machines already manufactured yarn is rewound, e.g. from normal coils to cheeses. The present application also aims to protect this application, because even in a winder, the invention has similar advantages: Again, different yarns can be rewound on the same winder thanks to the possibility of depositing on several Abräumbänder without the yarn bobbins are confused.

Figur 1

Schematischer Querschnitt einer Textilmaschine mit der erfindungsgemässen Abnahmevorrichtung am Roboter

Figur 2

Draufsicht derselben Textilmaschine aus Figur 1

Figur 3

Textilmaschine aus Figur 1 mit Darstellung der erfindungsgemässen unterschiedlichen Ablagemöglichkeiten

Figur 4

Variante der erfindungsgemässen Vorrichtung an einer einseitigen Textilmaschine

Figur 5

Weitere Ausgestaltung der erfindungsgemässen Vorrichtung

Figur 6

Weitere Ausführungsform der erfindungsgemässen Abnahmevorrichtung an der Spuleinheit

In the following, the invention and the inventive concept will be explained with reference to figures. The figures also show various embodiments. It should be expressly understood that the invention or the inventive concept is not limited to the embodiments shown in the examples. Show it:

FIG. 1

Schematic cross section of a textile machine with the inventive removal device on the robot

FIG. 2

Top view of the same textile machine from FIG. 1

FIG. 3

Textile machine of Figure 1 with representation of the inventive different storage options

FIG. 4

Variant of the device according to the invention on a single-sided textile machine

FIG. 5

Further embodiment of the inventive device

FIG. 6

Further embodiment of the inventive removal device on the winding unit

FIG. 1 shows a schematic cross-section of a textile machine 1. In the case of the illustrated textile machine, in the case shown concretely, it is a spinning machine. Since the textile machine 1 is double-sided, it has (perpendicular to the longitudinal axis) opposite workstations (in Figure 1 workstation 2 and 12). Of course, the textile machine 1 has on both longitudinal sides of a plurality of juxtaposed workstations 2 and 12 (see top view of Figure 2). Since FIG. 1 shows a spinning machine, the workstations 2 and 12 represent spinning stations in the specific case.

It should be noted that these represent the textile machines only schematically as the following figures. Accordingly, only the most important components of textile machines or spinning stations are shown, wherein the same or similar components in the figures have the same reference number.

The spinning stations or workstations 2 and 12 shown in FIG. 1 produce the yarn 9 or 11 from the fiber sliver 13 deposited in cans 14 by pulling the sliver 13 through a drafting system 15 and subsequently into the yarn 9 in a production unit 8 or spinning box 8 and 11 is spun. The yarn 9 or 11 is withdrawn from the outlet roller pair from the spinning box 8 and wound up by the winding units 3 and 10 into coils 5. The yarn is wound in the winding units 3 and 10 on sleeves, which are driven by the sleeve mandrel or a friction roller (not shown in detail).
If the coils 5 reach a certain predeterminable size or diameter, they must be removed from the winding units 3 or 10 and replaced by empty sleeves. This process is usually carried out automatically by a machine or robot.
For the implementation of the invention, either the robot 6, a new, inventive removal device 17 can be installed (see Figure 1) or it can on the textile machine - see description of Figure 6 - another special removal device 16 are provided. In the latter case, the Take-off device 16 at the workstation or spinning station 2 or 12 or be mounted directly on or in the winding unit 3 or 10.
In textile machines, the use of robots or robots as mentioned is widely used. The robot 6 shown in Figure 1 therefore preferably has the
However, the robot has, in addition to the inventive removal function, numerous other functions, such as the resumption of the spinning process after a yarn breakage interruption, etc. The inventive device provides that the robot can remove the coil from the winding unit of the respective workstation and - In contrast to the prior art - is able to place the coil on several Abräumbänder for further removal. As shown in FIG. 1, the robot 6 has for this purpose the movable removal device 17 according to the invention (shown only schematically). In contrast to conventional devices of this type, however, the robot with the gripping device 17 can deposit the coils 5 removed by the winding units (here winding unit 3) not only on a removal belt but on a plurality of such belts (here the removal belts 4 and 7).
As already mentioned above, thanks to the device according to the invention not only a practically continuous operation of the spinning or working stations is possible when changing assortments. The invention also makes it possible to process several assortments simultaneously on the same textile machine or textile machine side. If two removal margins are operable by the robot 6 or by the removal device 17 or by the removal device 16 (see FIG. 6) mentioned below, two assortments can be processed simultaneously. If there are three trimming belts available and operable, then three assortments can be processed at the same time, four assortments etc. for four trimming belts.
Depending on the number of removal bands or processable assortments, a corresponding number of different production units 8 can also be used. In one conceivable embodiment of the invention, for example, a group of production units 8 can produce a yarn 9 according to an air-spinning process, while a second group of production units can produce a yarn 11 according to the open-end spinning process manufactures. These different groups can be operated simultaneously on the same textile machine or the same textile machine side.

The invention is applicable to two-sided machines (see Figure 1) as well as on one-sided machines (see Figure 4). The application on two-sided textile machines, of course, has the advantage that both sides can access the same Abräumbänder (provided both sides have corresponding, inventive Abnahmevorrichtungen). The spinning machine of Figure 1 also has for its right longitudinal side, e.g. for the workstation 12, a robotic machine analog to the robot 6, which is not shown in Figure 1, however.

FIG. 2 shows the textile machine of FIG. 1 in a plan view. As can be seen very well from this figure, both longitudinal sides of the machine 1 to a plurality of workstations 2 and 12, which are operated by the machines or robots 6 and 18, inter alia, for the deposition of full coils 5. Incidentally, this figure also shows the robot 18 for the right side of the machine.

FIG. 3 again illustrates the invention when using two abrading bands. The figure shows with reference to the coil shown in dashed lines a) as the robot 6 to the workstation 2 (may also be a winding unit) positioned and with its inventive acceptance or gripping device 17, the full bobbin 5 of the winding unit 3 lifts. Depending on what an assortment / raw material / batch on the spool 5 has been produced or processed, the removal device 17 of the robot will place the spool on the removal belt 4 (variant b) or on the removal belt 7 (variant c). According to a further development of the inventive concept, various types have been worked out as to how the removal device on the robot receives the information as to where a coil is to be deposited. See the comments further ahead or the claims. Of course, it is conceivable that the invention is also used for storing not yet full coils. Even with normal use of the textile machine, such use can be done regularly, for example, if you want to let a raw material completely leak (the Fiber material then runs out at the spinning stations and the coils must be cleared regardless of their size).

FIG. 4 shows the invention applied to a single-sided textile machine. As you can see, you can use the inventive picking devices regardless of whether the machine is one or more pages. The textile machine of Figure 4 even has a third Abräumband 19. Accordingly, 3 different assortments can be processed or processed on this machine. Three Abräumbänder would of course also possible on double-sided textile machines.

Figure 5 deals with a further development of the inventive concept. According to this development according to the invention, in the case of multi-sided textile machines, opposed removal devices 17 or robots 6 and 18 are designed such that they do not interfere with each other. This property can be ensured by constructive or control measures - preferably a combination thereof. For example, the picking devices 17 of opposing robots 6 and 18 can assume different heights and positions such that they easily pass each other, even if one of the two machines 6 or 18 is currently depositing a reel (see FIG. 5). This ensures that the opposing robots 6 and 18 do not interfere with each other beyond the actual filing process.

The inventive picking device is not limited to the application in robots. An example of a further application is shown in FIG. 6. In this further embodiment of the invention, each work station or winding unit of the textile machine 1 has a special removal device 16 according to the invention, which is able to remove the coils from the associated winding units and to the various removal edges lay. Again, opposite removal device 16 may be designed such that they can work coordinated. That is, the removal devices 16 can coordinate their movements and position such that the coils 5 can be placed on both sides of the same Abräumbänder 4 and 7, without to interfere with each other beyond the filing process. A corresponding procedure is also shown in FIG. 6: It can be seen how actually both winding units 3 and 10 each have a coil to deposit. Since the left removal device 16 in its movement or in the process of filing the full bobbin 5 on the right Abräumband 7 already more advanced than the right removal device 16, the right take-off device 16 with her spool waiting in a waiting position e) until her left Take-off device 16 clears the way again for the storage of their coil. In this way, both pickup devices 16 are coordinated in such a way that they do not interfere with each other beyond the filing process.

Since the removal devices 16 as such already represent their own invention, it is also possible to provide removal devices 16 on textile machines with a removal belt. Such a removal device for textile machines, in particular winding or spinning machines, is characterized in that it is fixedly mounted on a winding unit or associated with only one winding unit and remove the coils from this winding unit and can deposit on one or more Abräumbänder.

Of course, the invention is not limited to the illustrated embodiments. These serve rather to illustrate the invention understandable. The person skilled in the art will readily be able, on the basis of this description, to deduce further combinations and applications which are also covered by the claims and the description.

The invention generally provides a textile machine, preferably a spinning or winding machine, to provide, which contains a plurality of work stations with winding units, wherein on the textile machine several, preferably two or three, Abräumbänder are mounted for the removal of coils. The invention can be characterized in that inventive removal devices are present which can deposit the coils on several Abräumbänder. The picking devices are preferably mounted on the individual winding units or on the workstations. In another variant, the removal devices on the or Robots of the textile machine mounted. The robots can be movable over several workstations.

Furthermore, the invention is particularly suitable for textile machines, which have workstations, which in turn are modular and / or have interchangeable production units. In a further variant, this production unit can also produce different yarns. Particularly preferably, the interchangeable production units have their own drives. On the same textile machine thus production units can be operated, which use different spinning processes.

In a further variant of the invention, individual workstations can be separately controlled and operated. Preferably, this variant is made possible by a central control of the textile machine.

The invention also provides that the removal device from the respective workstation or from the central control of the textile machine receives the information on which removal belt it has to deposit the respective coil.

Another development of the invention provides that the textile machine has work stations on both longitudinal sides, wherein the removal devices on each longitudinal side for depositing the coils uses the same Abräumbänder. Preferably, the opposing removal devices on the winding units or robots preferably coordinate in their movements and position such that the depositing of the coils on the same removal margins is ensured from both longitudinal sides without the opposing removal devices or winding units or robots obstructing one another.

A further variant of the invention provides that the coils are equipped with an identification means, preferably a transponder on the bobbin tube, on the basis of which the removal devices, the robot, or the winding unit receives the information on which predetermined Abräumband the removal devices have to deposit the coil.

In a preferred embodiment of the invention, the textile machine has workstations with production units which produce a yarn by an air-spinning process, preferably the vortex process, or the open-end spinning process.

Preferably, the production units in the work stations produce a yarn, wherein the discharge speed of the produced yarn from the production units at least 300 m / min. is.

Preferably, the invention is applied to a winding machine, which preferably serve the rewinding of yarn on cheeses.

The invention is not limited to the explicitly stated possibilities and embodiments. These variants are intended rather as a suggestion for the expert to implement the idea of the invention as low as possible. Of the described embodiments, therefore, further advantageous applications and combinations are readily derivable, which also reflect the inventive concept and should be protected by this application. Some of the disclosed features have been described combined in this specification and claimed in combination in the following claims. However, it is also conceivable to claim individual features of this description on its own or in another combination in application of the inventive concept. The Applicant therefore expressly reserves the right to provide any other combinations in application of the inventive concept

Legend

1

textile machine

2

Workstation on the left side of the machine

3

Winder on the left side of the machine

4

Removal belt on the left side of the machine

5

Kitchen sink

6

robot

7

Right clearing band

8th

production unit

9

yarn

10

Winder on the right side of the machine

11

yarn

12

Workstation on the right side of the machine

13

sliver

14

pot

15

drafting system

16

Removal device on the winding unit

17

Removal device on the robot

18

Robot on the right side of the machine

19

Abräumband

Claims (9)

Textile machine (1), preferably a spinning machine, comprising a plurality of workstations (2, 12) having winding units (3, 10), wherein on the textile machine (1) several, preferably two, Abräumbänder (4, 7, 19) for the removal of coils (5) are mounted, wherein the textile machine (1) further comprises one, two or more removal devices (16, 17) with which the coils (5) can be removed from the winding units (3, 10), characterized in that
the removal devices (16, 17) can deposit the bobbins (5) on a plurality of, preferably two, buffing edges (4, 7, 19),
The removal devices (16, 17) are preferably mounted on the individual winding units (3, 10), on the workstations (2, 12) or on at least one robot (6, 18) which is movable over several workstations (2). Textile machine (1) according to claim 1, characterized in that the workstations (2, 12) are of modular design and have interchangeable production units (8), which can preferably produce different yarns (9, 11), particularly preferably the interchangeable production units (8 ) own drives on. Textile machine (1) according to claim 1 or 2, characterized in that the individual work stations (2, 12) are separately controllable and operable, preferably by a central control of the textile machine (1). Textile machine (1) according to one of claims 1 to 3, characterized in that the removal devices (16, 17) from the respective workstation (2, 12) or from the central control of the textile machine (1) receives the information on which removal belt (4 , 7, 19) he has the respective coil (5) to store. Textile machine (1) according to one of the preceding claims, characterized in that the textile machine (1) on both longitudinal sides Work stations (2, 12) and the removal devices (16, 17) of each longitudinal side for storing the coils (5) use the same Abräumbänder (4, 7, 19),
Preferably, the opposing removal devices (16, 17) on the winding units (3, 10) or robots (6, 18) preferably coordinate in their movements and positions in such a manner that the storage of the coils (5) on the same removal margins is ensured from both longitudinal sides is and without the opposite removal devices (16, 17), winding units (3, 10), or robots (6, 18) interfere with each other beyond the filing process. Textile machine (1) according to one of the preceding claims, characterized in that the coils (5) are equipped with an identification means, preferably a transponder on the bobbin tube, on the basis of which the removal devices (16, 17), the robot (6, 18) , or the winding unit (3, 10) can determine on which removal belt (4, 7, 19) the removed coil (5) is to be deposited. Textile machine (1) according to one of the preceding claims, characterized in that the work stations (2, 12) production units (8), which by an air spinning process, preferably the vortex process, or the open-end spinning yarn (9, 11 ) produce. Textile machine (1) according to one of the preceding claims, characterized in that the work stations (2, 12) have production units (8) which produce yarn (9, 11) and wherein the discharge speed of the yarn produced from the production unit (8) is at least 300 m / min. is. Textile machine (1) according to one of claims 1 to 6, characterized in that the textile machine (1) is a winding machine, preferably for rewinding the yarn (9, 11) on cheeses.

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