Air spinning device, yarn forming unit and air spinning device cleaning method

Abstract

The invention relates to an air spinning device, a yarn forming unit and an air spinning device cleaning method. The air spinning device is provided with a yarn forming unit which is provided with a yarn forming part which can be arranged or is arranged in a vortex cavity of a nozzle unit; and a nozzle unit having at least one air nozzle aligned with the vortex chamber in such a way that an air flow flowing out of the air nozzle imparts a rotational flow to the sliver that can be fed into or is fed into the vortex chamber. According to the invention, yarn-forming unit having a component support for detachably receiving and removing a yarn-forming component or alternatively or additionally associated with the air-jet spinning device, linearly displaceable relative to a nozzle unit between a closed working position and an open cleaning position of the air-jet spinning device, and the air-jet spinning device is cleaning The cleaning position is linearly movable and / or pivotable.

Description

[0001] This application is a divisional application of the invention patent application with the original application number 202080084674.8 and the international application number PCT / EP2020 / 085031 (application date: December 8, 2020, invention name: method for cleaning the spinning position of an air-jet spinning device, such an air-jet spinning device and a yarn forming unit for such an air-jet spinning device). Technical Field

[0002] The invention relates to a method for cleaning an air-spinning device for a spinning position and to such an air-spinning device for producing air-spun yarn from a supplied fiber sliver, comprising:

[0003] a yarn forming unit having a yarn forming part arranged or arrangeable in a swirl chamber of the nozzle unit, and

[0004] A nozzle unit having at least one air nozzle which is directed toward the swirl chamber in such a way that the air flow emerging from the air nozzle imparts a swirling flow to the fiber strand which can be fed or fed into the swirl chamber.

[0005] The invention also relates to a yarn forming unit for such an air spinning device. Background Art

[0006] Many designs of spinning stations and open-end spinning machines consisting of a plurality of spinning stations arranged next to one another are known from the prior art. Open-end spinning machines are the machines most commonly used to produce yarns from fiber materials, in addition to ring spinning machines.

[0007] In air spinning, the fiber sliver is generally drafted by means of a drafting device in accordance with the yarn count to be obtained and then fed to the air spinning device. In the air spinning device, the outer fibers of the fiber sliver are wrapped around the inner core fibers of the fiber sliver by means of a swirling flow generated by one or more air nozzles, thereby forming wrapping fibers that are decisive for the desired yarn strength of the yarn. This results in a yarn that is finally drawn off through the outlet of the air spinning device and can be wound, for example, on a bobbin.

[0008] Due to the process, during the spinning process, the air spinning device, for example the air nozzle, or the area directly in front of it may occasionally become blocked or contaminated. The blockage or contamination is caused by loose fiber material of the fiber sliver, which collects in front of the air nozzle and has the result that the surrounding fibers no longer wrap around the core fibers in the intended manner. Due to the importance of the wrapping fibers for the yarn strength, this has the result that the yarn from the air spinning device no longer has the required yarn strength.

[0009] In order to simply eliminate interference, it is already known from EP3048191A1 to open the air-spinning device for cleaning, wherein the yarn forming unit with its yarn forming components, such as the spinning cone, which are arranged in the vortex chamber of the nozzle unit, is adjusted and moved relative to the nozzle unit, thereby making the interior of the air-spinning device accessible and cleanable to the operator. Summary of the invention

[0010] The invention is based on the object of providing a method for cleaning an air-spinning device at a spinning position, as well as an air-spinning device and a yarn forming unit for such an air-spinning device, which allow particularly simple and effective cleaning of the air-spinning device.

[0011] The invention achieves this object by means of an air spinning device, a method for cleaning an air spinning device and a yarn forming unit.

[0012] The air-spinning device of the present invention is characterized in that the yarn forming unit is installed linearly movably relative to the nozzle unit between a closed working position and an open cleaning position of the air-spinning device, and the air-spinning device, that is, the yarn forming unit together with the nozzle unit, is designed to be linearly movable and / or pivotable in the cleaning position.

[0013] It is important for the air-spinning device that it has at least two structural units, which can be adjusted and moved relative to each other and thus allow the air-spinning device to be opened, thereby obtaining the possibility of cleaning the interior. The structural units are, on the one hand, a nozzle unit and, on the other hand, a yarn forming unit. The nozzle unit has at least one air nozzle directed toward a vortex chamber, the air flow flowing out of which acts on a fiber strip that can be placed or is placed in the nozzle unit in such a way that it is subjected to a rotating flow, through which the outer fibers of the fiber strip are wrapped around the core fibers. The yarn forming unit has a yarn forming component, such as a spinning cone. In the working position, the yarn forming unit is in a position opposite to the nozzle unit, in which position the yarn forming component is arranged in the vortex chamber of the nozzle unit. The yarn formed in the air-spinning device due to the rotating flow generated by one or more air nozzles is discharged through the yarn forming component, in particular through the yarn withdrawal channel formed by the yarn forming component, for example, by passing through the central opening of the hollow spinning cone and being withdrawn from the spinning device at the output port of the yarn forming component.

[0014] According to the invention, a yarn forming unit with a yarn forming component is mounted linearly displaceably relative to the nozzle unit between a closed working position and an open cleaning position of the air-spinning device, wherein the yarn forming component, for example a spinning cone, is guided out of the swirl chamber. According to the invention, after the opening movement, i.e. in the cleaning position of the air-spinning device, it is designed to be linearly displaceable and / or pivotable, i.e. the nozzle unit and the yarn forming unit are displaced and / or pivoted together in the open cleaning position.

[0015] This inventive design according to the invention allows very simple and comfortable access to the interior of the air spinning device, which can then be cleaned easily and smoothly, for example, automatically or by an operator. The displacement of the open air spinning device here particularly makes it possible to adjust the open air spinning device to an easily accessible position, so that dirt can be removed easily and reliably and discharged from the spinning position. The movability and / or rotatability of the open air spinning device in principle allows for optimal arrangement possibilities for manual or automated cleaning of the air spinning device and, if applicable, also of the upstream drafting device.

[0016] The design of the movability and / or pivotability of the air-spinning device in the open cleaning position can in principle be freely selected. Thus, for example, there is the possibility of supporting the air-spinning device in a suitable manner on the spinning position, for example on a spinning device frame, by means of suitable supports. However, according to a particularly advantageous design of the invention, it is provided that the air-spinning device is designed for rotatable and / or pivotable mounting on a drafting device assigned to the air-spinning device for relative movability and / or pivotability in the cleaning position and is designed to be linearly movable and / or pivotable relative thereto.

[0017] A corresponding embodiment of the invention allows the air spinning device to be aligned directly with the upstream drafting device supplying the fiber sliver. Thus, after the air spinning device has been cleaned and subsequently moved into the operating position, it is ensured in a particularly reliable manner that the air spinning device is aligned with respect to the drafting device in the position that is optimal for the spinning process. In addition, the arrangement on the drafting device allows a simple, movable and / or pivotable arrangement on the drafting device, so that an alternative support mechanism on the spinning position can be dispensed with.

[0018] The linear movability and / or pivotability of the open air-spinning device in the cleaning position relative to the drafting device can, for example, be accomplished manually by an operator, who shifts the open air-spinning device according to a predetermined adjustability and then performs the required cleaning measures on the air-spinning device.

[0019] However, according to a particularly advantageous design of the invention, a drive unit is provided for automatically moving and / or pivoting the air spinning device in the cleaning position. Automatically moving the opened air spinning device ensures in particular that the air spinning device is reliably arranged in a position that is optimal for cleaning. Operator errors can be avoided in a special way by the automated drive unit. The design of the drive unit can be freely selected in principle, and a pneumatic drive unit can be used here, for which compressed air, which is usually applied to the spinning position, can be used, so that an additional drive device can be omitted. Alternatively, however, there is also the possibility of using an electric motor drive unit or a pneumatic drive unit.

[0020] The longitudinal mobility of the yarn forming unit relative to the nozzle unit in order to shift the air-spinning device from the working position to the cleaning position can be carried out in principle in any manner. However, according to a very advantageous design of the invention, it is provided that the yarn forming unit can be linearly moved relative to the nozzle unit in the direction of the longitudinal axis of the yarn forming component, i.e. in the longitudinal extension direction of the yarn forming component corresponding to the yarn withdrawal direction through the withdrawal channel formed in the yarn forming component. Here, the correspondingly oriented opening movement is characterized in that the yarn forming component, such as the spinning cone, is particularly reliably disengaged from the nozzle unit and good accessibility to the interior of the air-spinning device is obtained after a relatively short opening movement, which allows reliable cleaning. The displacement is preferably carried out in the drafting plane and in the direction of movement of the fiber strip, so that the lateral movement space at the spinning position for shifting the air-spinning device from the working position to the cleaning position can be abandoned.

[0021] According to another embodiment of the invention, the yarn forming unit is mounted on a guide having a guide so as to be linearly movable relative to the nozzle unit. The use of one or more guides ensures in particular the adjustment movement of the air-spinning device between the working position and the cleaning position. The guide here ensures in particular reliably that the yarn forming unit and the nozzle unit are arranged relative to each other after the return movement from the rest position to the working position, i.e. the spinning process can start in the air-spinning device without interference. The guide here particularly reliably prevents lateral displacements that could lead to interference.

[0022] The air spinning device can be manually moved between the working position and the cleaning position by an operator, such as by moving and / or pivoting the air spinning device that is already in the cleaning position. However, according to a particularly advantageous design of the present invention, a drive unit, in particular a pneumatic drive unit, is provided for adjusting and moving the air spinning device between the working position and the cleaning position.

[0023] The use of a drive unit ensures that the air spinning device can be reliably moved from the working position to the cleaning position and in particular back to the working position, thereby particularly reliably ensuring that the return to the working position and the restart of the spinning process proceed without interruption. The use of a pneumatic drive unit is characterized in that the compressed air already present at the spinning position can be used to operate the drive unit for this purpose, so that a supplementary supply line for operating the drive unit can be omitted.

[0024] The arrangement of the yarn forming component, such as the spinning cone, on the yarn forming unit is in principle freely selectable. It can thus be designed, for example, as an integral part of the housing of the yarn forming unit, wherein the housing together with the yarn forming component is then adjustably displaced relative to the nozzle unit in order to shift the air-spinning device from the operating position to the cleaning position. According to a preferred embodiment of the invention, it is provided that the yarn forming unit has a component holder which is designed to detachably accommodate the yarn forming component in the cleaning position of the air-spinning device.

[0025] According to this embodiment of the invention, the component holder of the yarn forming unit serves to accommodate the yarn forming components in a simple, detachable and therefore replaceable manner, wherein the replaceability is present in the cleaning position of the open-end spinning device. The use of the component holder thus has the characteristic that it is possible to replace the yarn forming components in a simple manner as required, thereby significantly shortening the downtime at the spinning position, perhaps in comparison with the elimination of contamination and blockages by replacing the yarn forming components in a less time-consuming manner. The component holder also provides the possibility of using a yarn forming unit with different yarn forming components, whereby the replacement can be carried out without much effort.

[0026] The detachable placement of the yarn forming component on the preferably provided component carrier can be carried out in principle in any manner, where it is ensured that the yarn forming component can be fixedly fastened to the yarn forming unit in a fixed position. In this case, according to a particularly preferred embodiment of the invention, it is provided that the component carrier has a plurality of receiving openings which are designed for bayonet-type locking of the yarn forming component and / or for locking the yarn forming component by means of fixing clips.

[0027] According to this design of the invention, a plurality of receiving openings are arranged on the component support, which can be placed in engagement with corresponding counterparts on the replaceable yarn-forming component and allow locking on the component support. In the case where the receiving opening is designed as a bayonet-type arrangement of the yarn-forming component, it has side cuts, which can be placed, for example, in engagement with pins on the yarn-forming component and allow the yarn-forming component to be locked in a form-fitting manner. Alternatively or in addition, the receiving opening can also be designed to accommodate a fixing clip, whereby the yarn-forming component can be arranged on the component support in a fixed position. In order to fix the yarn-forming component, the component support can also have a locking body, which, in the working position of the yarn-forming component, engages with a corresponding locking mark on the yarn-forming component on the component support.

[0028] According to a particularly advantageous design of the invention, it is also provided that the component support is designed for lateral removal of the yarn forming component parallel to the fiber sliver drafting plane or obliquely relative to the yarn forming direction of the yarn forming component. According to this design of the invention, the component support, for example with its preferably set receiving opening, is designed so that the direction of movement of the yarn forming component when being removed from or inserted into the component support is parallel to the drafting plane or obliquely relative to the yarn forming direction of the yarn forming component, in particular obliquely relative to the yarn withdrawal and supply direction of the yarn forming component. This design of the invention ensures that the yarn forming component can be replaced easily and comfortably as required, because there is good accessibility to the operator or a suitable automatic device in the corresponding area of ​​the spinning position. The replacement process that may be intended can thus be carried out in a particularly simple and comfortable manner.

[0029] The cleaning of the air spinning device in its cleaning position can in principle be carried out automatically or by the operator with the aid of suitable auxiliary means. In order to prevent frequent and repeated disturbances, it is advantageous to remove existing dirt from the air spinning device in such a way that it is completely discharged from the spinning position and thus does not cause re-contamination even in adjacent spinning positions. For this purpose, it is conceivable, for example, to use a suitable suction device, which is operated and used automatically or by the operator.

[0030] According to an advantageous design of the present invention, a suction device is provided in the inlet area of ​​the nozzle unit below the drafting plane of the fiber sliver, and the suction device is fixedly mounted on the air-spinning device according to a preferred design of the present invention. The suction device is arranged below the nozzle unit in the area in which the drafted fiber sliver is guided into the air-spinning device. The corresponding arrangement ensures good drainage of loose fiber material, which is preferably concentrated in the area around the inlet area of ​​the nozzle unit and causes contamination or blockages there that interfere with operation. The arrangement below the drafting plane here reliably ensures that the loose fiber material enters the suction device.

[0031] In this case, suction can be carried out not only during normal spinning operation but also during the switching on of the air spinning device. In addition, there is the possibility of positioning the suction device by shifting the air spinning device into its cleaning position so that the drafting device area around the delivery roller pair, in particular the delivery lower roller, is also freed from dirt. Thus, within the scope of the movement and / or pivoting of the air spinning device in the cleaning position, the correspondingly associated drafting device part is also cleaned.

[0032] The present invention also achieves this object through a method for cleaning the aforementioned air spinning device of the present invention or the improved air spinning device, wherein:

[0033] the yarn forming unit is linearly movable relative to the nozzle unit in order to move the air spinning device from a closed working position to an open cleaning position, and

[0034] The opened air spinning device is then in particular linearly displaced and / or pivoted relative to the respectively associated drafting device.

[0035] The control movement of the air-spinning device according to the method according to the invention ensures a very reliable and comprehensive cleaning of the air-spinning device, after which the spinning operation can be started again without interruption. The method according to the invention provides that, after the air-spinning device is first opened, i.e. the yarn forming unit is displaced relative to the nozzle unit into the cleaning position, the air-spinning device arranged in the cleaning position is subsequently moved and / or rotated, in particular relative to the correspondingly associated drafting device, thereby resulting in good accessibility for automated cleaning and / or for an operator who is to carry out the cleaning.

[0036] According to a very advantageous improvement of the method according to the invention, it is provided that the air-spinning device is linearly displaced and / or pivoted relative to the corresponding stretching device in the cleaning position so that a suction device arranged below the stretching plane in the inlet area of ​​the nozzle unit effectively engages with the output lower roller of the output roller pair of the stretching device.

[0037] According to this design of the invention, the displacement of the opened air spinning device makes it possible to arrange the advantageously arranged suction device on the air spinning device opposite the delivery roller pair so that the deposits and dirt located there, such as loose fiber material, are discharged from the delivery lower roller by the suction device. The preferred proposed arrangement can be realized in particular in that the suction device is arranged and / or designed to be brought close to the delivery roller pair during the displacement of the air spinning device, or the distance between the delivery roller pair and the suction device is shortened during the displacement of the air spinning device. This improvement of the method according to the invention thus supplements the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] An embodiment of the present invention is explained below with reference to the drawings, which show:

[0039] Figure 1 A schematic diagram of an air spinning device known from the prior art with an upstream drafting device is shown;

[0040] Figure 2 An air spinning device according to one embodiment is shown in a perspective view, which is movable and / or pivotable between a working position and a cleaning position and subsequently relative to a drafting device;

[0041] Figure 3 Show Figure 2 Another perspective view of the air-spinning device;

[0042] Figure 4 Shown in working position Figure 2 A side view of an air-spinning device;

[0043] Figure 5 Shown in cleaning position Figure 2 A side view of an air spinning device; and

[0044] Figure 6 Show Figure 2 A perspective view of an air-spinning device with the yarn-forming components being removed from the component holder.

[0045] Reference numerals list

[0046] 1 Drafting device

[0047] 2. Air spinning device

[0048] 3 Yarn forming unit

[0049] 4 vortex chamber

[0050] 5 Yarn forming components

[0051] 6 nozzle unit

[0052] 7 Guides

[0053] 8 rails

[0054] 9 Guide rod

[0055] 10 drive units

[0056] 11. Drive cylinder

[0057] 12 Entrance Area

[0058] 13 Output port

[0059] 15 Output upper roller

[0060] 16 Output lower roller

[0061] 17 Nozzle

[0062] 18 Suction device

[0063] 19 Component support

[0064] 20 Locking body

[0065] 21 Locking protrusion

[0066] 22 Main support

[0067] 23 Bracket

[0068] 24 Support pin

[0069] 25 Components Frame

[0070] 26 Input upper roller

[0071] 27 Input lower roller

[0072] 28 Upper roller of the second drafting device

[0073] 29 Second drafting device lower roller

[0074] 30 Upper roller of the third drafting device

[0075] 31 Lower roller of the third drafting device

[0076] 33 Receiving port

[0077] 34 Pins

[0078] 35 bulge

[0079] 36 Opening

[0080] 37 Notch

[0081] 38 web plate

[0082] 39 Fiber Strips

[0083] 40 Nozzle

[0084] 41 Nozzle

[0085] 42 pipeline

[0086] 43 Compressed air source DETAILED DESCRIPTION

[0087] exist Figure 1The basic structure of the drafting device 1 together with the downstream air-spinning device 2 is shown in the figure to provide an overall understanding of the working mode of the air-spinning device 2. The fiber sliver 39 drawn from a fiber sliver source (not shown here) is drawn in by an input roller pair consisting of an input upper roller 26 and an input lower roller 27. Subsequently, the fiber sliver 39 is drafted between the second drafting device upper roller 28 and the second drafting device lower roller 29 and the third drafting device upper roller 30 and the third drafting device lower roller 31 and the subsequent output roller pair consisting of an output upper roller 15 and an output lower roller 16. The drafted fiber sliver 39 then enters the air-spinning device 2 through the inlet area 12 of the nozzle unit 6 and is converted into yarn there using the yarn forming unit 3 and the nozzle unit 6 of the air-spinning device 2.

[0088] For this purpose, the nozzle unit 6 has a plurality of nozzles 40, 41, which are connected to a compressed air source 43 via a pipeline 42. The air flowing out of the nozzles 40, 41 generates a swirling flow, which is applied to the supplied drafted fiber sliver 39. The yarn forming unit 3 has a yarn forming part designed as a spinning cone 5, which cooperates with the nozzle unit 6 to form the yarn, and the yarn is drawn out from the air spinning device 2 through the hollow spinning cone 5 via the delivery opening 13.

[0089] exist Figure 2 and Figure 3 , an air spinning device 2 is shown that can be adjusted and moved between a working position and a cleaning position according to one embodiment. A fiber sliver 39 extending in the area between upper rollers 15, 26, 28, 30 arranged on an upper cradle (not shown) and lower rollers 16, 27, 29, 31 arranged on a drafting device frame of the drafting device 1 is fed into the air spinning device 2 after being drafted by the drafting device 1.

[0090] The air spinning device 2 comprises a nozzle unit 6 and a yarn forming unit 5, which are arranged relative to each other in a manner as shown in FIG. Figure 2 , Figure 3 and Figure 4 The working position shown is similar to Figure 5 and Figure 6 The yarn forming unit 3 has, in addition to the nozzles 40, 41, a vortex chamber 4 for generating a swirling flow acting on the stretched fiber sliver 39, in which the yarn forming component designed as a spinning cone 5 is arranged in the working position. In the air spinning device 2, the stretched fiber sliver 39 is adjusted according to the cleaning position. Figure 1 The operating principle shown is converted into yarn, which can be drawn out through the output opening 13.

[0091] In order to adjust and move the yarn forming unit 3 with the spinning cone 4 relative to the nozzle unit 6, the air-spinning device 2 according to this embodiment has a guide 7 arranged on the main support 22 of the air-spinning device 2. The guide 7 has a plurality of receiving openings for movably mounting guide rails 8 and guide elements 9 connected to the yarn forming unit 3. The pneumatic drive unit 10 with the drive cylinder 11 is used to shift the yarn forming unit 3 between the working position and the cleaning position. The supply of pressure to the drive cylinder 11 causes the yarn forming unit 3 to be displaced in the longitudinal axis direction of the guide rails 8 and the guide rods 9 relative to the main support 22 and the nozzle unit 6 arranged fixedly on the main support 22 until the position is as shown in FIG. Figure 5 and Figure 6 Cleaning position shown.

[0092] In the cleaning position, the air spinning device 2 is pivotably connected to the drafting device 1 by means of a main support 22 which is articulated on a bracket 23 provided on the drafting device 1, wherein the articulated connection is formed by suitable bearing pins 24. In the cleaning position, the opened air spinning device 2 can be pivoted relative to the drafting device 1 in such a way that the suction nozzles 17 of the suction device 18, which are arranged in the inlet region 12 of the nozzle unit 6, are opposite the discharge lower roller 16, so that dirt can be sucked out not only from the inlet region 12 of the nozzle unit 6 but also from the surrounding area of ​​the discharge lower roller 16 by the suction nozzles 17.

[0093] For easy replacement of the yarn forming component designed as a spinning cone 5, the open-end spinning device 2 has a component holder 19 which is designed to detachably accommodate a component frame 25 which accommodates the spinning cone 5. The component frame 25 therefore has an opening for accommodating the spinning cone 5, which is provided with a plurality of edge-side receiving openings 33 which allow bayonet-type reception of pins 34 arranged on the spinning cone 5, so that the spinning cone 5 can be arranged in a fixed position on the component frame 25 via said pins. The projection 35 protruding from the back side of the spinning cone 5 extends through the opening 36 in the component frame 25 in the installed position and allows the spinning cone 5 to be aligned in its circumferential direction.

[0094] The component frame 25 can be mounted on the component support 19 in a fixed position. For this purpose, the component frame 25 has a web 38 which aligns it relative to the component support 1 in the circumferential direction and a locking projection 21 for locking. In the position in which the component frame 25 is mounted on the component support 19, the web 38 extends through the opening 36 of the component support 19. In addition, the component frame 25 is locked in its position in the mounted position by elastic locking bodies 20 which engage with locking markings 21 on the component frame 25. In order to remove the component frame 25 together with the spinning cone 5, the locking bodies 20 are displaced against their elastic preload so that the component frame 25 can be removed laterally from the component support 19. The spinning cone 5 can in turn be displaced by a bayonet connection with the component frame 25 by partial rotation into a position in which it can be removed from the component frame 25.

Claims

1. An air-spinning device (2) for producing air-spun yarn from supplied fiber slivers, the air-spinning device (2) comprising: a yarn forming unit (3) having a yarn forming part (5) which can be arranged or is arranged in a swirl chamber (4) of a nozzle unit (6), and - the nozzle unit (6) has at least one air nozzle, which is directed toward the vortex chamber (4) so ​​that the air flow flowing out of the air nozzle imparts a swirling flow to the fiber strand (39) that can be introduced or introduced into the vortex chamber (4), in, The yarn forming unit (3) is mounted on a guide member (7) having a guide portion so as to be linearly movable relative to the nozzle unit (6) between a closed working position and an open cleaning position of the air-spinning device (2), wherein in the closed working position, the yarn forming unit (3) is in a position relative to the nozzle unit (6) in which the yarn forming component (5) is arranged in the vortex chamber (4) of the nozzle unit (6), and in the open cleaning position, the yarn forming component (5) is guided out of the vortex chamber (4), the yarn forming unit (3) is disengaged from the nozzle unit (6), and the interior of the air-spinning device can be accessed for cleaning. Its characteristics are: The nozzle unit and the yarn forming unit are designed to be linearly movable and / or pivotable in the opened cleaning position after the opening movement of the yarn forming unit (3), so as to adjust the opened air-spinning device to an easily accessible position, wherein the air-spinning device (2) is equipped with a stretching device (1) for supplying the fiber sliver (39), wherein the air-spinning device (2) is rotatably and / or pivotally mounted on the stretching device (1) so as to be able to move and / or pivot relative to the stretching device (1).

2. The air spinning device (2) according to claim 1 is characterized in that: A drive unit is provided for automatically moving and / or pivoting the air spinning device (2) in the cleaning position.

3. The air spinning device (2) according to claim 1 is characterized in that: The yarn forming unit (3) is linearly movable relative to the nozzle unit (6) in the direction of the longitudinal axis of the yarn forming component (5).

4. The air spinning device (2) according to claim 1 is characterized in that: A corresponding drive unit (10), in particular a pneumatic drive unit, is provided for adjusting and moving the air spinning device (2) between the working position and the cleaning position.

5. The air spinning device (2) according to claim 1, characterized in that: The yarn forming unit (3) has a component holder (19) which is designed to detachably accommodate the yarn forming component (5) in the cleaning position of the air-spinning device (2).

6. The air spinning device (2) according to claim 1, characterized in that the components The support (19) has a plurality of receiving openings which are designed to lock the yarn forming component (3) in a bayonet-like manner and / or to lock the yarn forming component (3) by means of a fixing clip.

7. The air spinning device (2) according to claim 1, characterized in that the components The support (19) is designed for lateral removal of the yarn forming element (5) parallel to the drafting plane of the fiber sliver (39).

8. The air spinning device (2) according to claim 1, characterized in that: A suction device (18) is provided in the inlet region (12) of the nozzle unit (6) and is arranged below the drafting plane of the fiber strand (39).

9. A method for cleaning an air spinning device (2) according to any one of the preceding claims 1 to 8, characterized in that: - the yarn forming unit (3) is linearly moved relative to the nozzle unit (6) in order to move the air spinning device (2) from a closed working position to an open cleaning position, and - Subsequently, the opened air spinning device (2) is linearly displaced and / or pivoted, in particular relative to the correspondingly associated drafting device (1).

10. The method according to claim 9, characterized in that: The air-spinning device (2) is linearly moved and / or pivoted in the cleaning position relative to the corresponding stretching device (1), so that the suction device (18) arranged below the stretching plane in the inlet area (12) of the nozzle unit (6) is effectively connected to the output lower roller (15) of the output roller pair (15, 16) of the stretching device (1).

11. A yarn forming unit (3) for an air-spinning device according to any one of claims 1 to 8, characterized in that: A component holder (19) is provided, which is designed to detachably accommodate a yarn forming component (5), which is designed to be arranged in a vortex chamber (4) of a nozzle unit (6) capable of cooperating with the yarn forming unit (3).

12. The yarn forming unit (3) according to claim 11, characterized in that The component support (19) has a plurality of receiving openings which are designed to lock the yarn forming component (3) in a bayonet-like manner and / or to lock the yarn forming component (3) by means of a fixing clip.

13. The yarn forming unit (3) according to claim 11 or 12, characterized in that: The component support (19) is designed to accommodate and remove the yarn forming component (5) laterally at an angle relative to the yarn forming direction of the yarn forming component (5).

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