EP2620532A1 - Air jet spinning machine with a cleaning organ and method for cleaning the eddy chamber of an air jet spinning machine - Google Patents

Abstract

The machine has an outlet channel (8) associated to a vortex chamber (3). A portion of air, which is applied by spinning nozzles (7), is discharged via the outlet channel. A yarn forming element (5) includes a drain (9), which is provided adjacent to an inlet opening (6). A yarn is drawn from the vortex chamber via the drain. A cleaning element (10) includes an inlet (11) and an outlet (12), where a cleaning medium supplied to the cleaning element via the inlet is introduced into the vortex chamber via the outlet during a cleaning step. An independent claim is also included for a method for cleaning a vortex chamber of an air spinning machine.

Description

The present invention relates to an air spinning machine for producing a yarn from a fiber structure, wherein the spinning machine comprises at least one spinning station, wherein the spinning station has a swirl chamber with an inlet opening for the fiber structure and a Garnbildelement at least partially extending into the swirl chamber with an inlet mouth for the yarn , wherein the vortex chamber in the direction of the Garnbildungselements associated spinnerets are introduced via the air in the vortex chamber to impart rotation to the fiber strand in the region of the inlet mouth, wherein the vortex chamber is associated with an outlet channel, on the at least a part of the over Spinning nozzles introduced air is discharged, and wherein the Garnbildungselement has an adjacent to the inlet port discharge channel through which the yarn from the vortex chamber is removable. Furthermore, a method for cleaning a vortex chamber of an air-spinning machine is proposed, wherein the spinning machine comprises at least one spinning station, wherein the spinning station has a vortex chamber with an inlet opening for the fiber structure and an at least partially extending into the vortex chamber yarn formation element with an inlet mouth for the yarn associated with the vortex chamber in the direction of the Garnbildungselements aligned spinneret over which during the yarn production air is introduced into the vortex chamber to impart rotation to the fiber strand in the region of the inlet mouth of Garnbildungselements, wherein the vortex chamber is associated with an outlet channel, on the at least one part the air introduced through the spinnerets during yarn production is discharged, and wherein the yarn forming member has a discharge duct adjacent the inlet mouth over which the yarn passes during yarn production the vortex chamber is withdrawn. Generic air-jet spinning machines serve to produce a yarn from an elongated fiber structure by means of a vortex air flow generated by the spinnerets within the vortex chamber. In this case, the outer fibers of the fiber composite are wound around the inner fibers (core) in the area of said inlet opening of the yarn formation element, so that a stable yarn with a true twist results, which is finally removed from the vortex chamber via the extraction channel and wound onto a bobbin can be.

Since with the fiber structure inevitably entrained impurities (honeydew, Avivage, contaminants, etc.) get into the vortex chamber, it comes with increasing spinning operation to contamination of the vortex chamber interior and in particular the surface of the mostly spindle-shaped yarn formation element. This eventually leads to a negative effect on the yarn properties, so that the vortex chamber including the Garnbildungselements must be cleaned at regular intervals. In order to be able to carry out a corresponding cleaning, it is known, for example, to make the yarn-forming element displaceable along the withdrawal channel in order to improve the accessibility of the surfaces to be cleaned. A suitably trained spinning chamber is for example the DE 103 33 411 A1 refer to.

Object of the present invention is therefore to propose an air spinning machine whose vortex chamber can be freed in a particularly simple yet reliable way of accumulated during the spinning process impurities.

The object is achieved by an air-spinning machine with the features of patent claim 1.

According to the invention, the air-spinning machine is characterized in that it has at least one cleaning member with an inlet and an outlet for a Cleaning medium has, wherein a cleaning medium supplied to the cleaning member via the inlet cleaning medium during the cleaning step via the outlet into the vortex chamber can be introduced. In other words, the air-spinning machine has a cleaning device comprising the cleaning device, with the help of a particular automatic cleaning of the vortex chamber and thus also the Garnbildungselements is possible. During the cleaning step, the fluidizing chamber is supplied with a liquid, gaseous or solid (eg pulverulent) cleaning medium. The cleaning member is in this case preferably via its inlet to a pump or a cleaning medium leading overpressure line in combination, so that the cleaning medium is pressed as a result via the outlet into the vortex chamber or its inlet opening. The cleaning medium eventually takes the way to the surface of the yarn-forming element, which also has to take the fiber structure during the spinning process. This results in a recording of the impurities, which can finally be discharged together with the cleaning medium from the vortex chamber. In one possible embodiment, the cleaning member is formed by an inlet channel (eg in the form of a bore in the wall surrounding the vortex chamber), whose outlet is arranged in the region of the inlet opening or the wall section of the vortex chamber adjacent to the inlet mouth of the yarn formation element. The inlet channel can also be rigidly connected to the inlet (via which the cleaning medium is supplied during the cleaning step) or pass in one piece into it.

It is particularly advantageous if the air-spinning machine has at least one cleaning member with an inlet and an outlet for a cleaning medium, wherein the outlet of the cleaning member during a cleaning step in sealing contact with the inlet opening of the vortex chamber is brought into contact, so that the cleaning member via the inlet supplied Cleaning medium during the cleaning step on the outlet and finally on the inlet opening in the vortex chamber can be introduced. The Cleaning member is thus one of the vortex chamber surrounding the wall separated and preferably movably mounted component and serves as a coupling member between a reservoir for the cleaning medium and the wall surrounding the vortex chamber. If a cleaning step is to be carried out, all that is required is to stop the supply of the fiber dressing and bring the cleaning element into liquid-tight or gas-tight contact with said wall. The supply of the cleaning medium finally takes place via the outlet of the cleaning member and the adjacent inlet opening of the vortex chamber.

In this context, it is particularly advantageous if the outlet channel of the vortex chamber is connected to a switchable flow switch, which is connected on the one hand with an air discharge line and on the other hand with a line for the removal of the cleaning medium. As a result, depending on the position of the flow switch, the discharge channel can either pass into the air discharge line or into the line for removing the cleaning medium. In other words, both the air during the spinning process and the cleaning medium during the cleaning step leaves the vortex chamber via the same opening, namely the outlet channel. However, in order to prevent penetration of the cleaning medium into the air circulation of the air-spinning machine, a flow switch is placed in the outlet channel, preferably by means of a drive via a control unit. The line for removing the cleaning medium may finally be connected to a storage container for the cleaning medium, so that the cleaning medium during the cleaning step are circulated (possibly with the interposition of a filter device for removing the impurities from the cleaning medium).

Alternatively, it may also be advantageous if the vortex chamber is assigned a separate discharge channel for discharging the cleaning medium introduced into the vortex chamber during the cleaning step. In this In the case, the cleaning medium does not leave the vortex chamber via the outlet channel provided for the exit of the air (which is for example connected to a vacuum source). Rather, there is a separate channel through which the cleaning medium is withdrawn during the cleaning step. This channel can in turn be connected to a storage container and / or a pump for the cleaning medium.

It also brings benefits when the inlet mouth of the Garnbildungselements viewed in the axial direction of the discharge channel between the inlet opening and opening into the vortex chamber opening of the outlet channel or between the inlet opening and opening into the vortex chamber opening of the discharge channel is arranged. The optionally available for the removal of the cleaning medium channels (outlet channel or discharge) are thus placed in an area that ensures that the cleaning medium must flow through a large part of the vortex chamber. In particular, in this case, the tip of the yarn formation element having the inlet mouth of the draw channel comes into intimate contact, so that removal of contaminants deposited there is ensured. The outlet channel or the discharge channel are also placed in a plan view of the inlet mouth, preferably on the opposite side of the inlet opening of the vortex chamber to ensure that the cleaning medium must flow around the Garnbildungselement.

It is particularly advantageous if the cleaning member identifies a seal in the region of the outlet. In this way it can be ensured in a simple manner that during the cleaning step, no cleaning medium between the cleaning member and the wall surrounding the vortex chamber, on which the cleaning member is applied, can escape. Rather, the entire cleaning medium supplied to the cleaning member via its inlet flows through the inlet opening into the vortex chamber, even if the cleaning medium is pressed in with a certain overpressure. The seal may be formed as a ring seal and consists for example from a rubber surrounding the outlet of the cleaning member.

It is advantageous if the cleaning member is in communication with a carrier element and by means of which it is movable relative to the inlet opening of the vortex chamber. This is particularly advantageous because the inlet opening must be accessible during the normal spinning process for the fiber structure. If the cleaning member is located on a support element (for example in the form of a drive arm having a drive), the cleaning member for the cleaning step can be moved in the direction of the inlet opening, for example pivoted. After completion of the cleaning step, the cleaning member is finally moved away from the inlet opening so far that the vortex chamber can be fed again a fiber structure.

It also brings benefits when the air-spinning machine comprises a plurality of spinning units, wherein each spinning stations own or a group of several spinning stations is assigned a common cleaning member, wherein the cleaning member in the latter case the individual spinning stations is as needed deliverable. The cleaning member may in this case, as described, be associated with a carrier element, which is the cleaning member in response to the cleaning step triggering parameters (operating time of the air spinning machine to be spun fiber material, spinning speed, etc.) of the respective spinning station delivered. For example, it would be conceivable to use the vortex chambers of two adjacent spinning stations with a cleaning member, which is mounted between the two spinning stations.

Furthermore, it is advantageous if the air-spinning machine comprises a plurality of spinning stations and if the cleaning device is part of a service robot of the air-spinning machine patrolling along the spinning stations. Corresponding service robots are conventionally used, to re-start in the event of a yarn breakage or fault, or to replace a full bobbin with an empty bobbin. If the service robot now additionally or exclusively has the described cleaning device, it is possible to clean all or a plurality of the spinning positions of an air-jet spinning machine with only one cleaning element. The service robot can also have its own storage container with cleaning medium, a pump for introducing the cleaning medium into the vortex chamber, or also a filter device for separating the impurities removed from the cleaning medium from the cleaning medium. As an alternative to a stored storage container, the service robot can also have a coupling system with which it can be connected to the spinning unit to be cleaned with a line system of the air-spinning machine which carries the cleaning medium. If the cleaning medium is under a certain overpressure and a discharge line for the cleaning medium already passed through the vortex chamber is present, a self-powered pump can be dispensed with.

As already stated, it is advantageous if the air-spinning machine has a storage container for the cleaning medium, which communicates with the cleaning member and / or with the suction channel or the outlet channel of the vortex chamber or can be brought into connection. The storage container can in this case attach to the machine frame of the air spinning machine or else be part of the service robot. Furthermore, the storage container is preferably in contact with a pumping and / or filtering device in order to be able to convey the cleaning medium or to be able to free it of impurities. It is also conceivable to combine the cleaning member with a disposable cartridge, taken from the fresh cleaning medium and can be returned to the contaminated cleaning medium after passing through the vortex chamber.

The inventive method for cleaning a vortex chamber of an air-spinning machine is finally characterized by the fact that during a Cleaning step, during which the yarn production is interrupted, a cleaning medium, preferably via the inlet opening is introduced into the vortex chamber, and that the cleaning medium is removed after passing at least a portion of the vortex chamber again from this. The vortex chamber is thus automatically cleaned with the aid of a cleaning medium to be described later, as soon as a cleaning medium is introduced into the vortex chamber. The cleaning medium flows into the vortex chamber and in this case takes the same path that the fiber structure also takes during the spinning process. In other words, the cleaning medium comes into contact with exactly the locations of the vortex chamber (inner surface, surface of the yarn formation element), which are most often covered with corresponding impurities. The impurities are finally released from the cleaning medium and leave with this the vortex chamber via the outlet channel, through which the air leaves the vortex chamber during the spinning process. Alternatively, the cleaning medium can also be removed via a separate discharge channel. If the cleaning medium is supplied via a separate, movably mounted cleaning member, the introduction begins, for example, as soon as the cleaning member has been sealingly brought into contact with the wall having the inlet opening (the cleaning member can, for example, after interrupting the yarn production by means of a driven support member, for example by means of a Carrier arm, moved to its cleaning position, for example, be pivoted). Alternatively, the cleaning member can also be formed by a separate inlet channel of the vortex chamber, which preferably opens into the inlet opening thereof and z. B. is rigidly connected to an inlet for the cleaning medium.

In particular, it is extremely advantageous if, at the beginning of the cleaning step, an outlet of the cleaning member is sealingly brought into contact with the inlet opening of the vortex chamber, and when the cleaning medium is introduced into the vortex chamber via the outlet of the cleaning member. Indicates the outlet and / or surrounding the inlet opening Wall, for example, a seal, it can be prevented that the cleaning medium occurs when exposed to pressure at the junction between the cleaning member and the wall surrounding the vortex chamber to the outside.

In general, a liquid (for example a cleaning agent or solvent or a carrier fluid mixed therewith, for example in the form of water), a bulk material (eg a fine-grained metal, sand or plastic powder) may be used as the cleaning medium a liquid enriched in bulk or a gas enriched with a liquid and / or a bulk material are used. Furthermore, it is conceivable that the cleaning medium is heated before its use to increase the cleaning effect in addition.

It is also advantageous if at least temporarily air is introduced via the spinnerets into the vortex chamber during the introduction of the cleaning medium. This leads to an increase in the cleaning effect and in particular to a vortex formation in the region of the yarn formation element. If the cleaning medium is a powder or a powder-air mixture, the air entering via the spinnerets produces an air-powder vortex which frees the yarn-forming element from impurities, similar to a sandblasting device. If a liquid cleaning medium (for example a fat-dissolving liquid) is supplied to the vortex chamber, an air-liquid turbulence arises in the region of the yarn-forming element, which cleans the respectively swept surfaces in a manner similar to a high-pressure cleaner. In all cases, the air can be introduced into the vortex chamber continuously or else in a pulsed manner, wherein the air pressure or the air volume flow can each be greater or smaller than during the spinning process.

It is particularly advantageous if the cleaning medium is discharged via the outlet channel, via which air is removed during yarn production, or a separate discharge channel is sucked out of the vortex chamber. In the former case, there may be a flow following the exit channel which must be passed by the air (during the spinning process) or the cleaning medium (during the cleaning step). The flow switch can be brought, for example by means of a drive and a controller in the respective position. If the vortex chamber has a separate discharge channel for the cleaning medium, it may be advantageous if the outlet channel is closed during the cleaning step and the discharge channel during the spinning process in order to prevent the respective medium from escaping via the wrong exit.

It is particularly advantageous if, at the end of the cleaning step, the supply of the cleaning medium is stopped and then the cleaning member is again removed from the inlet opening of the vortex chamber and the production of the yarn is started. By removing the cleaning member from the inlet opening ensures that the fiber structure during the spinning process can enter undisturbed in the inlet opening.

Figur 1

eine Schnittansicht eines Ausschnitts einer Spinnstelle einer erfindungsgemäßen Luftspinnmaschine,

Figur 2

die Ansicht gemäß Figur 1 mit auf dem Garnbildungselement abgelagerten Verunreinigungen,

Figur 3

die Ansicht gemäß Figur 2 mit einem erfindungsgemäßen Reinigungsorgan,

Figur 4

die Ansicht gemäß Figur 3 mit aufgesetztem Reinigungsorgan,

Figur 5

die Ansicht gemäß Figur 4 während eines erfindungsgemäßen Reinigungsschritts,

Figur 6

eine Schnittansicht eines Ausschnitts einer alternativen Ausführungsform einer Spinnstelle einer erfindungsgemäßen Luftspinnmaschine,

Figur 7

eine teilweise geschnittene Seitenansicht eines Serviceroboters an einer Spinnstelle einer erfindungsgemäßen Luftspinnmaschine,

Figur 8

eine schematische Darstellung der möglichen Abfuhr von Luft und von Reinigungsmedium aus einer Spinnstelle einer erfindungsgemäßen Luftspinnmaschine, und

Figur 9

eine Schnittansicht eines Ausschnitts einer weiteren alternativen Ausführungsform einer Spinnstelle einer erfindungsgemäßen Luftspinnmaschine.

Further advantages of the invention are described in the following exemplary embodiments. It shows:

FIG. 1

a sectional view of a section of a spinning station of an air-spinning machine according to the invention,

FIG. 2

the view according to FIG. 1 with impurities deposited on the yarn formation element,

FIG. 3

the view according to FIG. 2 with a cleaning member according to the invention,

FIG. 4

the view according to FIG. 3 with attached cleaning member,

FIG. 5

the view according to FIG. 4 during a cleaning step according to the invention,

FIG. 6

3 is a sectional view of a section of an alternative embodiment of a spinning station of an air-spinning machine according to the invention,

FIG. 7

2 a partially sectioned side view of a service robot at a spinning station of an air-spinning machine according to the invention,

FIG. 8

a schematic representation of the possible removal of air and cleaning medium from a spinning station of an air-jet spinning machine according to the invention, and

FIG. 9

a sectional view of a section of another alternative embodiment of a spinning station of an air-spinning machine according to the invention.

FIG. 1 shows a schematic sectional view of a section of a spinning station of an air-spinning machine according to the invention. The air-spinning machine usually comprises a drafting device, not shown, which is supplied with a fiber structure 2, for example in the form of a doubled sliver 2. Further, the spinning station comprises a vortex chamber 3, which is seen after the drafting system seen in the transport direction of the fiber strand 2 and in which the actual yarn production takes place.

Within the vortex chamber 3, the fiber structure 2 or at least a part of the fibers of the fiber composite 2 is provided after passing through an inlet opening 4 for producing the desired yarn 1 with a rotation. The rotation is created by a targeted air flow in the area of a preferably spindle-shaped Garnbildungselements 5, wherein the air flow is generated by usually tangentially opening into the swirl chamber 3 spinneret 7. The spinnerets 7 are supplied with air, for example, via at least one air line 15 and a ring line 30 arranged between the air line 15 and the spinnerets 7, the air, after passing through the surface of the yarn forming element 5, leaving the vortex chamber 3 again via an outlet channel 8 (the one for this purpose) a vacuum source can be connected).

Furthermore, the spinning station may have a take-off device formed by a take-off roller pair and a winding device connected downstream of the take-off roller for winding up the yarn 1, wherein the yarn 1 is passed over an inlet mouth 6 of the yarn-forming element 5 (in the area of which the rotation and thus the actual yarn production take place) and the subsequent discharge channel 9 is withdrawn from the spinning station.

During the spinning process, it is now unavoidable that impurities 24 (honeydew, fiber particles, lubricant) are deposited in the area of the inlet mouth 6 of the yarn formation element 5 or the inner wall of the vortex chamber 3 (see FIG FIG. 2 ), which negatively affect the spinning process.

In order to enable a quick and reliable cleaning of the vortex chamber 3 including the Garnbildungselements 5, the air-spinning machine according to the invention now has at least a cleaning member 10, as for example in the FIGS. 3 to 5 is shown.

The cleaning member 10 has a (for example via a pump 23 in communication with a storage container 21) inlet 11 and a correspondingly engageable with the inlet opening 4 of the vortex chamber 3 in contact outlet 12 for a still closer to be described cleaning medium 13.

During a periodically performed cleaning step, the supply of the fiber composite 2 is interrupted in the vortex chamber 3 and the cleaning member 10 moves as far to the spinning station until it rests sealingly on its outlet 12 surrounding the inlet opening 4 wall of the spinning station. In order to prevent an unwanted escape of the cleaning medium 13 between the cleaning member 10 and said wall during the cleaning step, a seal 18 surrounding the inlet opening 4 may be provided in the region of the outlet 12 or the opposite wall.

Now that the area of the cleaning element 10 having the outlet 12 has been placed on the wall, for example with the aid of a carrier element 19 which carries the cleaning element 10 and can be moved by means of a drive ( FIG. 4 ), is introduced via the outlet 12 to the cleaning member 10 via the inlet 11 supplied cleaning medium 13 in the vortex chamber 3. The introduction preferably takes place with the aid of a pump 23, which presses the cleaning medium 13 into the vortex chamber 3.

Alternatively, a liquid (eg water mixed with cleaning agent or solvent), a bulk material 22 (eg a fine cleaning powder), a liquid enriched with a bulk material 22 or else a liquid containing a bulk material and / or or a bulk material 22 enriched gas are used.

The cleaning medium 13 flows around after passing through the inlet opening 4 all surface sections that are passed during the spinning process of the fiber material. As a result, it also comes into contact with the contaminants 24 and thereby causes them to detach (see FIG. 5 ). After passing through the Garnbildungselements 5 leaves enriched with the contaminants 24 cleaning medium 13, the vortex chamber 3, for example via the outlet channel 8, through which the air is sucked off during the spinning process.

In order to be able to discharge the cleaning medium 13 separately, the outlet channel 8, as in FIG. 8 shown to be in communication with a flow switch 14. Depending on the position of the flow, the outlet channel 8 is finally either (during the spinning process) with an air discharge line 29 or (during the cleaning step) with a line 16 for the removal of the cleaning medium 13 in connection. Last mentioned line 16 may in turn be in communication with the already mentioned storage container 21, so that the cleaning medium 13 during the cleaning step (for example, with the interposition of a filter device for separating the entrained impurities 24) can be recycled.

Alternatively, the vortex chamber 3 also have a separate discharge channel 17, as in the FIGS. 6 and 7 is shown. The removal of the cleaning medium 13 during the cleaning step takes place in this case exclusively via the discharge channel 17, while the supplied via the spinnerets 7 air is discharged via the outlet channel 8 during the spinning process.

In order to enhance the cleaning effect of the supplied cleaning medium 13, it may additionally be provided during the cleaning step to supply the spinnerets 7 with air (for example, pulse-like). In this case, the air flows into the vortex chamber 3 and mixes with the supplied cleaning medium 13 to form a corresponding vortex flow in the region of the tip of the yarn formation element 5 which has the inlet mouth 6. If the cleaning medium 13 is a solid, then Cleaning in the manner of a sandblasting process. When a liquid is supplied by the interaction of cleaning fluid and supplied air the cleaning effect of a high-pressure cleaner.

While each spinning station can be assigned its own cleaning member 10, it can also be advantageous if the cleaning member 10 is part of a service robot 20 patrolling along the spinning stations. A corresponding embodiment is in FIG. 7 shown. In this case, the service robot 20 preferably has a storage container 21 for the cleaning medium 13, which can be supplied to the cleaning member 10 by means of a pump 23 placed in an intermediate line 25. The cleaning member 10 is advantageously seated on a carrier element 19 (for example, via a joint 26 and with the aid of a drive, not shown), so that it is fed to the wall of the spinning station having the inlet opening 4 and removed again after completion of the cleaning process 10 can be.

In order to couple the service robot 20 with the spinning station, this can finally have a suction nozzle 28, which can be sealingly connected by means of a coupling 27 with the discharge channel 17 of the swirl chamber 3.

Alternatively shows FIG. 8 the already mentioned flow switch 14, via which the outlet channel 8 during the spinning process with an air line 15 and during the cleaning process with a line 16 for the removal of the cleaning medium 13 can be brought into connection. The flow switch 14 is preferably provided with a drive and actuated by means of a control unit.

Finally shows FIG. 9 an alternative embodiment of the spinning station according to the invention. Instead of the already described separate cleaning member 10, the cleaning member 10 is formed here by an inlet channel 31, for example, rigid with an inlet not shown for the Cleaning medium 13 is in communication. Finally, the cleaning medium 13 is pressed into the vortex chamber 3 via the inlet channel 31 or sucked into it by the vacuum present at the outlet channel 8 (or a separately present discharge channel 17).

The present invention is not limited to the illustrated and described embodiment. Variations within the scope of the claims are just as possible as a combination of features, even if they are shown and described in different embodiments.

LIST OF REFERENCE NUMBERS

1

yarn

2

fiber structure

3

swirl chamber

4

inlet opening

5

Garnbildungselement

6

inlet mouth

7

spinneret

8th

outlet channel

9

culvert

10

cleaning means

11

Intake

12

outlet

13

cleaning media

14

flow switch

15

air line

16

Line for the removal of the cleaning medium

17

discharge channel

18

poetry

19

support element

20

service robots

21

storage container

22

bulk

23

pump

24

pollution

25

intermediate line

26

joint

27

clutch

28

suction

29

Air discharge line

30

loop

31

inlet channel

Claims (15)

Air-jet spinning machine for producing a yarn (1) from a fiber structure (2), - wherein the air-spinning machine comprises at least one spinning station, - Wherein the spinning station a vortex chamber (3) with an inlet opening (4) for the fiber structure (2) and at least partially in the vortex chamber (3) extending Garnbildungselement (5) having an inlet mouth (6) for the yarn (1) . - Wherein the vortex chamber (3) in the direction of Garnbildungselements (5) aligned spinnerets (7) are assigned, via the air in the vortex chamber (3) can be introduced to the fiber strand (2) in the region of the inlet mouth (6) to a rotation To give, - Wherein the vortex chamber (3) is associated with an outlet channel (8) through which at least a portion of the air introduced via the spinnerets (7) can be discharged, and - wherein the Garnbildungselement (5) has a to the inlet mouth (6) adjacent to the discharge channel (9) through which the yarn (1) from the vortex chamber (3) is removable, characterized in that - The air-spinning machine has at least one cleaning member (10) with an inlet (11) and an outlet (12) for a cleaning medium (13), - In which a cleaning member (10) via the inlet (11) supplied cleaning medium (13) during a cleaning step via the outlet (12) into the vortex chamber (3) can be introduced. Air-jet spinning machine according to claim 1, characterized in that the outlet (12) of the cleaning member (10) during a cleaning step sealingly with the inlet opening (4) of the swirl chamber (3) is brought into contact, so that the cleaning member (10) via the inlet (11) supplied cleaning medium (13) during the cleaning step via the inlet opening (4) in the vortex chamber (3) can be introduced. Air-jet spinning machine according to one or more of the preceding claims, characterized in that the outlet channel (8) of the vortex chamber (3) is connected to a switchable flow switch (14), which on the one hand with an air discharge line (29) and on the other hand with a line (16) for Discharge of the cleaning medium (13) is in communication, so that the outlet channel (8) depending on the position of the flow switch (14) either in the air discharge line (29) or in the line (16) for removal of the cleaning medium (13) passes. Air-jet spinning machine according to one or more of the preceding claims, characterized in that the swirling chamber (3) is assigned a discharge channel (17) for discharging the cleaning medium (13) introduced into the swirling chamber (3) during the cleaning step. Air-jet spinning machine according to claim 3 or 4, characterized in that the inlet mouth (6) of the Garnbildelements (5) in the axial direction of the discharge channel (9) seen between the inlet opening (4) and the outlet channel (8) or the inlet opening (4) and the discharge channel (17) is arranged. Air-jet spinning machine according to one or more of the preceding claims, characterized in that the cleaning member (10) in the region of the outlet (12) has a seal (18) and / or that the cleaning member (10) with a support member (19) is in communication and with the help of which relative to the inlet opening (4) of the vortex chamber (3) is movable. Air-jet spinning machine according to one or more of the preceding claims, characterized in that the air-spinning machine comprises a plurality of spinning stations, wherein each spinning stations own or a group of several spinning stations a common cleaning member (10) is associated, wherein the cleaning member (10) in the latter case the individual spinning stations can be delivered as needed. Air-jet spinning machine according to one or more of claims 1 to 6, characterized in that the air-spinning machine comprises a plurality of spinning stations and that the cleaning member (10) is part of a service robot (20) of the air-spinning machine patrolling along the spinning stations. Air-jet spinning machine according to one or more of the preceding claims, characterized in that the air-spinning machine has a storage container (21) for the cleaning medium (13) with the cleaning member (10) and / or with the suction channel or the outlet channel (8) of the swirl chamber (3) communicates. Method for cleaning a vortex chamber (3) of an air-jet spinning machine, which is used to produce a yarn (1) from a fiber structure (2), - wherein the air-spinning machine comprises at least one spinning station, - Wherein the spinning station a vortex chamber (3) with an inlet opening (4) for the fiber structure (2) and at least partially in the vortex chamber (3) extending Garnbildungselement (5) having an inlet mouth (6) for the yarn (1) . - Wherein the vortex chamber (3) in the direction of the yarn formation element (5) aligned spinnerets (7) are assigned, introduced via the during the yarn production air in the vortex chamber (3) is in order to give the fiber structure (2) in the region of the inlet mouth (6) of Garnbildungselements (5) rotation, - Wherein the vortex chamber (3) is associated with an outlet channel (8) through which at least a portion of the air introduced via the spinnerets (7) during the yarn production air is discharged, and - wherein the Garnbildungselement (5) has a at the inlet mouth (6) adjacent to the discharge channel (9) through which the yarn (1) during the yarn production from the vortex chamber (3) is withdrawn, characterized, - That during a cleaning step, during which the yarn production is interrupted, a cleaning medium (13), in particular via the inlet opening (4), is introduced into the vortex chamber (3), - And that the cleaning medium (13) after passing at least a portion of the vortex chamber (3) is removed again from this. Method according to the preceding claim, characterized in that at the beginning of the cleaning step, an outlet (12) of a cleaning member (10) sealingly with the inlet opening (4) of the swirl chamber (3) is brought into contact, and that the cleaning medium (13) via the Outlet (12) of the cleaning member (10) is introduced into the vortex chamber (3). Method according to one or more of claims 10 and 11, characterized in that at least temporarily air is introduced via the spinnerets (7) into the vortex chamber (3) during the introduction of the cleaning medium (13). Method according to one or more of claims 10 to 12, characterized in that the cleaning medium (13) via the outlet channel (8), discharged through the air during the yarn production is sucked, or a separate discharge channel (17) from the vortex chamber (3) is sucked. Method according to one or more of claims 10 to 13, characterized in that a liquid, a bulk material (22), a liquid enriched with a bulk material (22) or a liquid and / or a bulk material (22 ) enriched gas is used. Method according to one or more of claims 10 to 14, characterized in that at the end of the cleaning step, the supply of the cleaning medium (13) stopped and then the cleaning member (10) again from the inlet opening (4) of the vortex chamber (3) and removed with the Preparation of the yarn (1) is started.

Images