Spinning cone

Abstract

The invention relates to a spinning cone having an outer lateral surface and a spinning cone cavity. The spinning cone cavity is designed and arranged to spin a yarn in such a way as to take up fibres fed to it and feed them to a yarn outlet duct adjoining the spinning cone cavity. In this respect, the spinning cone is designed and arranged to spin the yarn in such a way as to perform a rotation cycle of wound fibres of the fibres fed to it relative to an axis of symmetry of the spinning cone. According to the invention, the spinning cone has at least one disrupting device, which is designed and arranged in such a way as to impart movement to a rotation cycle of the wound fibres coming into contact with the disrupting device.

Description

[0001] Description spinning cone

[0002] The invention relates to a spinning cone according to claim 1. The invention relates to a textile machine, in particular an air-jet spinning machine, according to claim 11. The invention relates to a method for cleaning a spinning cone according to claim 12.

[0003] Spinning cones (singular: spinning cone) of air-jet spinnerets are well known in the art. They are used in textile machines, especially in air-jet spinning machines, to spin incoming fibers into a thread or yarn. A single spinning cone fulfills the specific function of thread formation. At the tip of the spinning cone, the wrapped fibers of fed fibers from a fed fiber composite rotate, particularly in an air stream, and form into yarn. Conventional spinning cones tend to become dirty, which can subsequently lead to deposits, requiring cleaning. This can lead to downtime of the textile machine, which ties up resources and incurs costs.

[0004] Therefore, the object of the invention is to reduce cleaning effort and thereby, in particular, reduce resource consumption and thus costs. Furthermore, the object of the invention is to improve spinning quality. Furthermore, the object of the invention is to improve spinning stability and, more preferably, to influence the yarn character.

[0005] The object is achieved in particular by a spinning cone having the features according to claim 1. Furthermore, the object is achieved in particular by a textile machine, in particular by an air-jet spinning machine, having the features according to claim 11. Furthermore, the object is achieved in particular by a method for cleaning a spinning cone having the features according to claim 12.

[0006] Advantageous embodiments of the invention are the subject of the subclaims.

[0007] According to one aspect, the problem is solved by a spinning cone with the features of claim 1. The spinning cone has an outer circumferential surface and a spinning cone cavity. The spinning cone cavity is designed and arranged for spinning a thread in such a way to receive supplied fibers in order to feed them to a thread exit channel adjoining the spinning cone cavity. In other words, the spinning cone is designed with an opening arranged at the spinning cone tip, which merges into a thread passage that forms at least one component of a so-called thread exit channel of the air spinneret or completely forms this. The spinning cone is designed and arranged for spinning a thread in such a way to carry out a rotational circulation of wrapped fibers of the supplied fibers relative to an axis of symmetry of the spinning cone. The spinning cone has at least one disturbance device.This is designed and arranged to impart a movement, in particular a vibration, to the rotational orbit of the wrapped fibers that come into contact with the perturbation device. In other words, the imparted movement, due to the perturbation device, is different from the pure orbital movement of the wrapped fibers around the spinning cone, which is usually generated by the swirling air flow within the air spinneret. By imposing a movement on the wrapped fibers, in particular by imposing a vibration on the rotational orbital movement, cleaning can be improved.

[0008] Generally, a fiber composite, also known as a fiber strand, is fed into a spinning cone for spinning a thread. Due to the precisely supplied spinning compressed air to create a vortex air flow, this fiber strand is divided within the air spinneret into core fibers and wrapping fibers connected to the core fibers, also known as edge fibers. During the spinning process, the core fibers are drawn into the spinning cone cavity and guided along the adjoining thread exit channel. The rotating wrapping fibers, which encircle the spinning cone in the direction of rotation, are carried along by the core fibers into the spinning cone cavity and, as they are carried along due to the rotation, are wrapped around the core fibers to form the thread, also known as the spun thread.

[0009] The wrapped fibers that typically circulate around the spinning cone during the spinning process can lead to contamination of the spinning cone surface. These contaminations can particularly be deposits on the outside of a nozzle nose caused by spinning lubricant, fiber components, or dust. Spinning behavior (yarn breaks) and yarn quality can be impaired by contamination. A spinning cone that is smooth and structureless, particularly at the inlet bevel and tip, can become contaminated by fiber material, such as fiber residues and fragments, that can deposit on the surfaces of the spinning cone. Imposing a movement, particularly an oscillation, on the movement of the wrapped fibers allows interaction between the wrapped fibers and any deposits and / or any contamination that may be deposited on the surfaces of the spinning cone.This allows the dirt and contaminants on the spinning cone to be detached from the spinning cone surface and removed via the swirling air flow. This can, in particular, prevent further growth of the contaminants. The spinning cone can therefore function as a self-cleaning spinning cone. This removes, in particular, the contaminants from the textile machine and its air-jet spinning unit, including the air-jet spinneret and the spinning cone.

[0010] The spinning cone can be designed to be smooth and structureless at the inlet (also referred to as the tip, which has a spinning cone cavity and / or a lateral surface). The wrapped fibers glide along an inlet bevel of the spinning cone and, at least here, have direct contact with the surface of the cone, particularly in an area of ​​a lateral surface and / or in an area of ​​a spinning cone cavity. The spinning cone cavity is designed to receive the wrapped fibers and to feed them to the thread exit channel. This enables spinning of the thread or yarn. A smooth, structureless tip does not impart vibration (imprinting a vibration on a rotational orbital movement) of the fibers or yarn.

[0011] The spinning cone enables the spinning of a thread by rotating individual wrapped fibers of the supplied fibers around a central axis of symmetry of the spinning cone and performing a relative movement over the outer surface and / or over the surface of a spinning cone cavity.

[0012] By providing a disturbance device according to the invention, the wrapped fibers can begin to vibrate and contact the outer region (the lateral surface) of the spinning cone. Alternatively or additionally, the surface surrounding the spinning cone cavity can be contacted. The transition from the spinning cone cavity located inside the spinning cone to the outer lateral surface is formed by the inlet bevel. The contact of the wrapped fibers with the outer region particularly improves the cleaning of the spinning cone. This applies in particular when the spinning cone is used in a textile machine for producing a thread or yarn. The spinning cone of the type described here can also be referred to as a self-cleaning spinning cone.

[0013] In one embodiment, contact of the individual wrapped fibers with the surface of the outside of the spinning cone can also be achieved by the formation of webs.

[0014] In particular, the area of ​​the inlet bevel (transition from the lateral surface to the spinning cone cavity) at the tip of the spinning cone in the fiber contact area can be provided with a structure. This can be described as a disruption device. In embodiments, this can be formed from a gear-like design with countersunk and / or raised teeth.

[0015] With the structured inlet bevel at the inlet radius or across the entire tip area of ​​the spinning cone, the gliding wrapped fibers can be stimulated to vibrate, causing them to touch the outer area of ​​the spinning cone as a result of direct contact. This allows the area to be kept largely free of deposits.

[0016] A structure in the spinning cone, particularly in the area of ​​the inner side of the spinning cone surrounding the spinning cone cavity, allows the movement of the wrapped fibers in the binding zone to be controlled, thereby influencing yarn quality and spinning stability. The binding zone is specifically the area in which the individual wrapped fibers are spun into a thread.

[0017] On the outside of the spinning cone, particularly in the area of ​​the lateral surface, rings or spiral-shaped webs can be formed. Their shape ensures that the wrapped fibers have direct contact with these areas of the spinning cone and that the air flow (air cushion) is directed into the so-called channels. Channels are specifically referred to as depressions in the structure. This ensures that the wrapped fibers contact a specific area of ​​the spinning cone in a controlled manner, as the air flow is deflected into the channels.

[0018] According to a further aspect, the movement can comprise an oscillation relative to at least one surface. The surface can be selected from the outer circumferential surface or a surface surrounding the spinning cone cavity. The surface can in particular have an inner surface. This inner surface can be structured, i.e. it is not smooth, but has various features such as elevations and / or depressions. The movement can have a movement component in a radial direction relative to the axis of symmetry. This can be such that a portion of the wrapping fibers that interact with the disturbance device are at least temporarily lifted from the surface. In particular, the temporary lifting of the wrapping fibers from the surface can ensure a beating movement of the wrapping fibers when they reappear on the surface. This can improve cleaning, which also improves the spinning quality.

[0019] Here and elsewhere, the spinning cone cavity can be referred to as the receiving area in which the wrapping fibers, as previously described, are combined with the core fibers of the supplied fibers, particularly under a rotary orbital motion, to form a thread that can be guided in a thread exit channel (also referred to as a yarn guide) adjacent to the spinning cone cavity. The surface, which can be arranged within a diameter around the axis of symmetry forming the surface surrounding the spinning cone cavity, can be referred to as the spinning cone cavity surface.

[0020] The expression that a movement component can be exhibited in a radial direction relative to the axis of symmetry is to be understood in particular to mean that a movement vector system can be formed in which at least one of the vectors has a movement component in a radial direction. In other words, this means: a region of at least one wrapped fiber can be moved radially outward after an interaction with a disturbance device. Alternatively or additionally, a region of a wrapped fiber can also be moved radially inward; this can be referred to as a radial backward movement or a movement counter to the radial direction. This can create the beating described here and elsewhere. This beating can ensure that contaminants do not adhere to the spinning cone and one of the described surfaces (or adhere only with difficulty).This, in particular, reduces the time it takes for the spinning cone to be cleaned, which reduces cleaning resources and thus also lowers costs. Furthermore, the quality of the spinning process can be improved. This can be due, in particular, to the slower growth of impurities. Since no larger impurities are introduced into the spun thread, the quality of the resulting thread is improved.

[0021] The expression "at least temporarily" refers in particular to the fact that during beating, a return movement, as described above, can occur to return the wrapping fibers to one of the surfaces described above. This can enable beating with the advantages described elsewhere.

[0022] According to a further aspect, the movement can comprise an oscillation with a movement component in a plane parallel to at least one surface. The surface can be selected from one of the outer circumferential surface and / or a spinning cone cavity surface. The spinning cone cavity surface can in particular be an inner surface. The movement component can be designed to at least temporarily change the speed of at least some of the wrapped fibers that interact with the disturbance device during a rotational revolution. A change in speed can in particular involve acceleration and / or braking. This can implement a cleaning movement. Furthermore, by accelerating and / or braking at least some of a wrapped fiber, the fiber can be guided, in particular over a structured surface.This applies accordingly to a variety of wrapping fibers.

[0023] The movements described here and elsewhere for wrapped fibers always apply to at least one wrapped fiber, but also to a large number of wrapped fibers, but not necessarily to all wrapped fibers. In other words, this means that there may also be wrapped fibers that do not interact with a defect during a rotation cycle, for example, due to interaction with other wrapped fibers. However, these can be lifted from the surface by other wrapped fibers.

[0024] A plane that is parallel to one of the described surfaces is, in particular, a plane that can have a tangential plane to a point and / or to a line segment of one of the surfaces. Furthermore, in particular, a corresponding change in speed can also occur directly on one of the described surfaces. According to a further aspect, the disruptive device can have at least one design selected from the following: at least one notch, at least one tooth and / or at least one surface structuring. As a result, a disruptive device can be formed by a geometric shape that is physically structurally simple to implement in order to achieve the technical advantages and / or effects described elsewhere.

[0025] A notch can represent a material recess, which is particularly designed and arranged to enlarge a surface area. The notch can be arranged in the region of an inlet bevel. The wrapping fibers can be introduced into the notch in a rotational cycle, whereby, on the one hand, a beating movement can occur radially inward within the rotational cycle, but also an outward movement can occur when running out, in particular when accelerating out of the notch, whereby a beating movement can occur when the wrapping fiber lands again.

[0026] According to one aspect, the at least one notch can be symmetrical. Alternatively, the notch can be asymmetrical. The asymmetry allows, in particular, the speed to be controlled in a rotational orbital movement when the wrapped fibers sink into the notch rather than moving out of the notch. This can improve vibration transmission.

[0027] A tooth can be an attached structure over which the inlet bevel at the spinning cone tip is extended in at least one direction parallel to the axis of symmetry. This allows the vibration introduction to be inverted compared to the notch during a rotational cycle. This can be advantageous depending on the structure of the underlying fibers and / or the wrapped fibers. In the aforementioned embodiments, beating can also lead to improved cleaning.

[0028] According to one aspect, the at least one tooth can be symmetrical or asymmetrical. The corresponding advantages and technical effects apply as described for an asymmetric notch.

[0029] According to one aspect, a surface structuring can be provided, which in particular extends at least partially in a spiral shape. In particular, the surface structuring can be provided to structure an inner side of a spinning cone cavity surface. This can define a region that enables the wrapped fibers to be guided into the spinning cone cavity. This can improve the spinning quality.

[0030] According to a further aspect, an inner surface can be assigned to a spinning cone tip, which in particular has the surface structuring, wherein the inner surface is concave. This can define a region that allows the wrapped fibers to be guided into the spinning cone cavity. This can improve the spinning quality.

[0031] It may be provided that mixed forms exist in which at least one tooth, at least one notch, and / or at least one area with a surface structure are provided to guide both beating, as described elsewhere, and to guide a parallel movement to one of the surfaces, as described elsewhere. This can improve spinning quality. It can also further improve the cleanliness of the spinning cone.

[0032] According to a further aspect, at least one notch can be provided to merge into at least one tooth. This can intensify a beating motion, which can lead to further improved cleaning and thus further savings in resources. It can also be provided that the notch and / or tooth are designed symmetrically and / or asymmetrically. The combination can, in particular, be designed to make the cleaning effect and the movement guidance particularly effective for the application. This can depend, for example, on the selected type of thread or yarn to be spun.

[0033] According to a further aspect, the at least one notch can be designed asymmetrically. The notch can have a long edge, a so-called long edge, and a short edge, a so-called short edge. These are arranged in particular at two notch angles. In particular, a steeper notch angle is arranged in a rotational direction. As a result, more abrupt braking can lead to a faster evasive movement out of the notch, whereby a beating movement can be intensified. On a more gently sloping long edge, the wrapping fiber can "pick up speed" and can be guided in particular, since it does not already lift off one of the surfaces at this point due to the notch dropping too quickly. This improves the guidance of the movement and thus cleaning. This can also improve the spinning quality.

[0034] According to a further aspect, the spinning cone tip can have an outer diameter. This is particularly symmetrical about the symmetry axis of the spinning cone. The perturbation structure can be designed and arranged such that it projects beyond the outer diameter. This can amplify the vibrations in the fiber. In particular, it can be provided that the wrapped fibers are guided away from the lateral surface by the projecting perturbation device in a guided movement, and then re-engage the spinning cone in a beating movement.

[0035] According to a further aspect, the interference device can be formed as a notch in an inner surface. The notch is particularly designed such that the recess forming the notch does not penetrate into the lateral surface. As a result, the principles described above can also be applied to an inner surface, in particular to a spinning cone cavity surface.

[0036] According to an independent aspect, the object is achieved in particular by a textile machine, in particular an air-jet spinning machine. The textile machine can have at least one air-jet spinneret with a spinning cone, as described above. This makes it possible to reduce cleaning effort and, in particular, to reduce resource consumption and thus costs. Furthermore, it is possible to improve spinning quality.

[0037] The textile machine as a system can be described by the process and, in particular, by its features, effects, and advantages. Furthermore, the textile machine can be described by the features of the spinning cone device. In particular, the features across the various categories are suitable for describing the other categories.

[0038] According to a further independent aspect, the object is achieved by the air spinneret. The structure of an air spinneret is well known in the art. According to a preferred embodiment, the air spinneret can comprise a two-part housing, wherein the first and second housing parts can be designed to be movable relative to one another in order to enable the air spinneret to be opened and closed. The first housing part carries a fiber introduction element, via which a fiber composite or fiber strand fed to the air spinneret is fed into an interior of the air spinneret. The second housing part preferably carries a yarn formation element which, when the air spinneret is closed, comprises the spinning cone according to one of the previously described embodiments opposite the fiber introduction element. The thread exit channel can be formed by the spinning cone and preferably additionally by the remaining region of the yarn formation element.The thread produced by the air spinneret can be drawn through the thread exit channel until it is guided out of the air spinneret. When the air spinneret is closed, the first and second housing parts define a vortex chamber that surrounds at least the spinning cone. Nozzle openings open into this chamber. These nozzle openings can be configured with the first and / or second housing parts to supply so-called spinning compressed air to the vortex chamber in such a way that a vortex air flow is generated in the vortex chamber. The vortex air flow causes the described rotational movement of the wrapped fibers.

[0039] According to a further independent aspect, the object is achieved in particular by a method for cleaning a spinning cone, in particular a spinning cone as described above. The method can comprise a step of executing a rotational revolution of wrapped fibers around an axis of symmetry of the spinning cone. The method can comprise a step of interacting the wrapped fibers with at least one disturbance device during a full rotational revolution. The interaction can be designed to generate an imprint of a movement of the wrapped fiber interacting with the disturbance device. The movement can in particular be an oscillation. This makes it possible to reduce the cleaning effort and thereby in particular to reduce the resource expenditure and thus the costs. Furthermore, it is possible to improve the spinning quality.

[0040] The method can be described in particular by the features, effects, and advantages of the device and / or system. In particular, the features across the various categories are suitable for describing the other categories.

[0041] In summary, and in other words, this means, in particular, that two or more notches can be formed on the cone tip with asymmetrical or symmetrical notch angles. The asymmetrical notch can be designed so that the steeper notch angle is aligned with the direction of rotation of the fibers. This ensures vibration transmission of the wrapped fibers. The notches on the cone tip, with their selected contour, can also be extended over the outer surface of the cone, thus amplifying the vibrations of the wrapped fibers that glide along the outer contour. The wrapped fibers, which are set into vibration by the notches, ensure, in particular, a cleaning effect and improved spinning stability.

[0042] The mechanism of action is based in particular on the vibration of the wrapped fibers striking the surface of the spinning cone of a yarn-forming element. The vibration of the wrapped fibers is generated in particular by a corresponding contour at the spinning cone tip. The striking of the wrapped fibers against the surface of the spinning cone can lead to the detachment of the dirt or deposits attached to it, whereby the surface of the spinning cone can be automatically cleaned, particularly without the addition of additives. Additives can optionally be added using devices and methods to increase and / or improve the cleaning effect.

[0043] Alternatively or additionally, a structure in the spinning cone, particularly in the area of ​​the inner side of a spinning cone cavity, can control the movement of the wrapped fibers in the binding zone, thereby influencing the yarn quality and spinning stability. The structure can be designed as a perturbation device that imposes a movement of the fibers along structural features.

[0044] Rings or spiral-shaped webs can be formed on the outside of the spinning cone. Their shape ensures that fibers can have direct contact with these areas of the spinning cone and the air flow (air cushion) can be directed into the channels. Channels are typically recesses and / or depressions between the embossed or applied structures. This allows the wrapped fibers to contact a specific area of ​​the spinning cone in a controlled manner, as the air flow can be deflected into the channels.

[0045] Alternatively or additionally, contamination of the outer area of ​​the spinning cone (or its outer surface) can be reduced or completely avoided by increasing the smoothness of the spinning cone material (e.g., through a polishing process step) or by applying a dirt-repellent layer (Teflon, etc.). Exemplary embodiments of the invention are described in more detail below with reference to figures, which show schematically and by way of example:

[0046] Fig. 1A an embodiment of a spinning cone tip with asymmetric

[0047] recesses;

[0048] Fig. 1 B an embodiment of a spinning cone tip with symmetrical

[0049] recesses;

[0050] Fig. 2 shows an embodiment of an air spinneret;

[0051] Fig. 3A is a schematic representation of a side view of an embodiment of a spinning cone with a spinning cone tip with symmetrical recesses;

[0052] Fig. 3B is a schematic representation of a side view of an embodiment of a spinning cone tip with asymmetric recesses;

[0053] Fig. 3C is a schematic representation of angles;

[0054] Fig. 4A is a schematic cross-sectional view of an embodiment of a spinning cone tip;

[0055] Fig. 4B is a sectional view of an embodiment of an insert with a structured surface; and

[0056] Fig. 5 is a schematic representation of a process.

[0057] The same reference symbols are used for elements and structures with the same function and / or similarity.

[0058] Fig. 1A shows an embodiment of a spinning cone tip 110 with asymmetric recesses 10. The spinning cone tip 110 is arranged in particular on a spinning cone 100, as shown by way of example in Fig. 3A. A spinning cone tip 110 has in particular an outer circumferential surface 20 and a spinning cone cavity 18. The spinning cone cavity 18 is in particular designed and arranged to receive wrapping fibers 26a from supplied fibers, as shown in Fig. 2. The wrapping fibers 26a received in the spinning cone cavity 18 can be fed to a thread exit channel 42 in order to spin a thread 26b. This is done in particular by the spinning cone 100, which is designed and arranged in such a way as to carry out a rotational revolution 50 of the wrapped fibers 26a in a rotational revolution direction U relative to a symmetry axis 34 of the spinning cone 100.In the illustrated embodiment, the spinning cone 100 exemplarily has two opposing interference devices, which are designed as asymmetric recesses 10. These can also be referred to as notches. These are designed and arranged in such a way as to come into contact with the wrapped fibers 26a during a rotational revolution 50 thereof. The wrapped fibers 26a extend over a spinning cone edge 16 from an outer circumferential surface 20, which they contact, into the spinning cone cavity 18 to be fed to the thread exit channel 42, as shown in Fig. 2. The wrapped fibers 26a run in a rotational revolution 50 around the spinning cone edge 16 and slide along a long edge 12 into an asymmetric recess, thereby experiencing an initial acceleration. Upon contact of the minimum of the asymmetric recess 10, the wrapping fibers 26a are lifted at the short edge 14.This allows a further movement to be imposed on the rotational orbital movement.

[0059] This imposed movement is, in particular, an oscillation relative to at least one outer circumferential surface 20 or to a spinning cone cavity surface. In particular, a concave inner surface 17 can be formed, as shown in Figs. 4A and 4B. The movement has, in particular, a movement component in a radial direction R. The radial direction R emanates, in particular, from the axis of symmetry 34. As described above, at least some of the wrapping fibers 26a that interact with the asymmetric recesses can lift off from at least one of the aforementioned surfaces, at least temporarily. This can, in particular, lead to a beating movement of the wrapping fibers 26a when the wrapping fibers 26a reappear on the at least one surface. This radially outward or radially inward movement can be described as an oscillatory movement.By hitting the surfaces of the wrapping fibers 26a, the spinning cone 100 is cleaned in particular.

[0060] Fig. 1B shows a corresponding spinning cone tip 110 of a spinning cone 100, wherein symmetrical recesses 15 are provided. In the symmetrical recesses 15, the edges 13 are of identical design. The functionality of the symmetrical recesses 15 corresponds to that of the asymmetrical recesses 10, as described in detail with reference to Fig. 1A. Symmetrical recesses 15 can be manufactured more easily. It is also possible to use the symmetrical recesses 15 if additional acceleration by a long edge 12 is not intended.

[0061] Fig. 2 schematically shows a partial operation of an air-jet spinneret 30 of an air-jet spinning device 24 of an air-jet spinning machine, wherein the air-jet spinneret 30 has a spinning cone 100 with a spinning cone tip 110. Wrapped fibers 26a extend around a spinning cone tip 110 in a rotational orbit 50 along a rotational direction U, here clockwise (in a top view, not shown). A fiber guide 29 can also be arranged around the axis of symmetry 34 (not shown here; see Figs. 3A and 3C). This fiber guide 29 can be arranged and configured to feed the supplied fibers in an orderly manner to the spinning cone 100. An acceleration zone 28 can be formed during the described rotational orbit 50. In this, in particular the wrapping fibers 26a are accelerated, for example by interacting with one of the previously described recesses 10, 15.This allows the wrapping fibers 26a to lift off the outer surface 20, at least temporarily. When the wrapping fibers 26a are re-applied to the outer surface 20, or to an inner surface of the spinning cone cavity 18, deposits are removed, which can improve cleaning during operation.

[0062] After the wrapping fibers 26a have passed over the spinning cone edge 16 into the spinning cone cavity 18, the wrapping fibers 26a can be spun together with the core fibers, forming a thread 26b that enters a thread exit channel 42 and can be drawn through the air spinneret 30. The thread exit channel 42 is arranged in particular in a spinning cone core 27, which can differ from a spinning cone shell region 25, in particular due to the selected material.

[0063] Fig. 3A shows a schematic representation of a side view of an embodiment of a spinning cone 100 with a spinning cone tip 110 with symmetrical recesses 15. Fig. 3B shows a schematic representation of a side view of an embodiment of a spinning cone tip 110 with asymmetrical recesses 10. Fig. 3C shows a schematic representation of angles with respect to Figs. 3A and 3B.

[0064] Fig. 3A schematically shows a side view of an embodiment of a spinning cone 100. A spinning cone tip 110 with symmetrical recesses 15 is arranged on the cone. As previously described, edges 13 of equal length are arranged to form a corresponding symmetrical recess 15. In particular, the recess can be understood to mean that material is removed from the height of the spinning cone edge 16 at the location of the symmetrical recess 15. A notch can be formed as an example.

[0065] The spinning cone tip 110 with symmetrical recesses 15 has been described in detail with reference to Fig. 1B. The arrangement of the axis of symmetry 34 is particularly clear in Fig. 3A. The spinning cone 100 has, in particular, a spinning cone tip 110, a spinning cone body 120, and a spinning cone base 36. The axis of symmetry 34 is, in particular, designed and arranged such that an axis parallel to the axis of symmetry 34 can divide the symmetrical recesses 15, with an equal angle existing between this axis and the two similar edges 13.

[0066] As shown in Fig. 3B, this is particularly not the case with embodiments that have asymmetrical recesses 10. As shown in Fig. 3C, a steep angle 37 forms, in particular, between the short edge 14 and the axis parallel to an axis of symmetry 34 (for the sake of simplicity, these two axes are equated in the following nomenclature). A shallow angle 38 forms, in particular, between the long edge 12 and the axis parallel to the axis of symmetry 34.

[0067] As shown in the overview in Fig. 3A, the spinning cone tip 110 can be mounted on the spinning cone 100 with an attachment edge 22. This can be done, in particular, in such a way that the spinning cone tip 110 is interchangeable. This allows, in particular, a spinning cone tip 110 as shown in Fig. 3A to be exchanged for a spinning cone tip 110 as shown in Fig. 3B. This makes it particularly quick and easy for a user to interchange the two functionalities.

[0068] Fig. 4A shows a schematic cross-sectional view of an embodiment of a spinning cone tip 110. Fig. 4B shows a sectional view of an embodiment of an insert with a concave inner surface 17 with a structured surface.

[0069] Fig. 4A shows a cross-sectional view through an embodiment of a spinning cone 100. This cone has, in particular, a concave inner surface 17. In particular, inner surface recesses 11 are arranged in this concave inner surface 17. These recesses, in particular, do not penetrate the outer circumferential surface 20. These recesses, in particular, fulfill the functions and properties as described with regard to the symmetrical recesses 15 and the asymmetrical recesses 10 in relation to Figs. 1A and 1B. The inner surface recesses 11 can, in particular, ensure that a beating movement is imparted to the wrapping fibers 26a (or regions of these wrapping fibers 26a). In particular, regions of the wrapping fibers 26a that run along an inner side of the spinning cone cavity 18 are subjected to a beating movement.As a result, a beating movement is also impressed on the movement of the wrapping fibers 26a on an inner side, in particular on a concave inner surface 17.

[0070] In particular, Fig. 4A shows that the concave inner surface 17 has a height h2. The height h1 is in particular the height of the spinning cone tip 110. Also, in particular, an axis of symmetry 34, as already described with reference to Fig. 3A, runs through the spinning cone 100 and thus also through the spinning cone tip 110. The spinning cone cavity 18 has an outer diameter D at the inlet bevel. Also shown is the previously referenced radial direction R, which runs in particular perpendicularly outwards from the axis of symmetry 34.

[0071] Adjoining the concave inner surface 17 of the spinning cone cavity 18 is, in particular, a thread exit channel 42, as described in detail elsewhere. This can be widened in a lower region of the spinning cone body 120, for example, in a transition region 49. A wider thread guide region 45 can extend adjacent thereto. The thread exit channel 42 is designed, in particular, such that a formed thread 26b can be discharged from the air spinneret 30 by the rotational circulation 50 in a rotational circulation direction U, as shown in Fig. 2 and described in this regard - see also Fig. 2. The transition region 49 and the adjoining wider thread guide region 45, however, reduce the frictional resistance when the thread 26b slides through the spinning cone 100. Purely for reasons of clarity, the spinning cone 100 is shown cut off at a cut edge 48.

[0072] Fig. 4B shows, by way of example, a concave inner surface 17 provided with a spiral shape as a surface structuring 19. The wrapping fibers 26a running into this concave inner surface 17 of the spinning cone cavity 18 are guided by the spiral shape. This can improve the guidance of the wrapping fibers 26a. This, in turn, improves the spinning quality. The concave inner surface 17 can be inserted into a spinning cone tip 110 via the exemplary embodiment of the concave spinning cone insert 23 shown. The spinning cone insert 23 can rest on a spinning cone tip 110, in particular via attachment surfaces 21. Fastening can be achieved via locking devices 44, which can ensure, in particular, that the concave spinning cone insert 23 does not detach from the spinning cone 100 during operation.

[0073] Fig. 5 shows a schematic representation of a method 200 for cleaning a spinning cone 100. The method 200 for cleaning a spinning cone 100 comprises, in particular, the step of depositing the wrapped fibers 26a on the spinning cone 100. The method comprises, in particular, performing 220 a rotational revolution 50 of wrapped fibers 26a. The rotational revolution takes place, in particular, around an axis of symmetry 34 of the spinning cone 100. The method comprises, in particular, a step of interacting 230 with the wrapped fibers 26a. The interaction 230 takes place, in particular, during a full rotational revolution 50 with at least one disturbance device. A symmetrical recess 15 as described above or an asymmetrical recess 10 can be provided as the disturbance device.The interaction 230 is in particular such as to produce an imprint 240 of a movement, in particular an oscillation on a movement, of the wrapping fibers 26a interacting with the interference device.

[0074] "May" refers in particular to optional features of the invention. Accordingly, there are also further developments and / or embodiments of the invention that additionally or alternatively comprise the respective feature(s).

[0075] If necessary, isolated features can also be extracted from the combinations of features disclosed here and used in combination with other features to define the subject matter of the claim, dissolving any structural and / or functional relationship that may exist between the features. List of reference symbols: asymmetrical recess 44 locking device inner surface recess 45 wide thread guide area long edge 47 fiber guide inner surface edge 48 cutting edge

[0076] Short edge 49 Transition area symmetrical recess 50 Rotational orbit spinning cone edge 100 spinning cone concave inner surface 110 spinning cone tip spinning cone cavity 120 spinning cone body

[0077] Spiral shape of a 200 Process for cleaning a surface structuring spinning cone outer surface 210 Application of wrapping fibers attachment surface 220 Execution of a rotation cycle

[0078] Attachment edge of wrapping fibers around a concave spinning cone insert symmetry axis of a spinning cone air spinning device 230 Interaction of wrapping fibers with

[0079] Spinning cone sheath area of ​​a disturbance device a wrapping fiber 240 Impressing a movement on the thread wrapping fibers during a rotation

[0080] Spinning cone core circulation acceleration zone fiber guide D diameter air spinneret R radial direction symmetry axis U rotational circulation direction

[0081] Spinning cone base steep angle h1 Height of the spinning cone acceleration area flat angle yarn exit channel h2 Height of the area with concave

[0082] inner surface

Claims

Patent claims 1. A spinning cone (100) of a yarn-forming element for an air spinneret (30), comprising an outer circumferential surface (20); and a spinning cone cavity (18), wherein the spinning cone cavity (18) is designed and arranged for spinning a thread (26b) in such a way as to receive supplied fibers in order to feed them to a thread outlet channel (42) adjoining the spinning cone cavity (18); and wherein the spinning cone (100) is designed and arranged for spinning the thread (26b) in such a way as to execute a rotational revolution (50) of wrapping fibers (26a) of the supplied fibers relative to an axis of symmetry (34) of the spinning cone (100); characterized in that the spinning cone (100) has at least one disturbing device which is designed and arranged in such a way as to impart a movement to a rotational orbit (50) of the wrapping fibers (26a) which come into contact with the disturbing device.

2. Spinning cone (100) according to claim 1, characterized in that the movement comprises an oscillation relative to at least one surface, wherein the surface is selected from one of - the outer surface (20); or - a spinning cone cavity surface of the spinning cone cavity (18), in particular a concave inner surface (17); and wherein the movement has a movement component in a radial direction (R) relative to the axis of symmetry (34), such as to at least temporarily lift a portion of the wrapping fibers (26a) that interact with the perturbation device from the at least one surface, in particular for a beating movement of the wrapping fibers (26a) upon re-emergence of the wrapping fibers (26a) on the at least one surface.

3. Spinning cone (100) according to one of claims 1 or 2, characterized in that the movement comprises an oscillation with a movement component in a plane parallel to at least one surface, wherein the surface is selected from one of - the outer surface (20); or - a spinning cone cavity surface, in particular a concave inner surface (17); and wherein the movement component is designed to at least temporarily change, in particular to accelerate and / or brake, the speed of at least some of the wrapping fibers (26a) that interact with the disturbance device during a rotational revolution (50).

4. Spinning cone (100) according to one of the preceding claims, characterized in that the disturbance device comprises at least one element selected from the following: - at least one recess, in particular a notch; - at least one tooth; or - at least one surface structuring.

5. Spinning cone (100) according to claim 4, characterized in that the at least one recess (10, 15) is designed as a notch and merges into at least one tooth.

6. Spinning cone (100) according to claim 4 or 5, characterized in that at least one recess (10, 15) is designed as a symmetrical recess (15) or as an asymmetrical recess (10); and / or wherein at least one tooth is designed as a symmetrical tooth or as an asymmetrical tooth; and / or wherein the surface structuring extends at least partially in a spiral shape (19).

7. Spinning cone (100) according to one of the preceding claims, characterized in that the spinning cone tip (110) can be assigned an inner surface which in particular has the surface structuring (11, 19), wherein the inner surface is designed as a concave inner surface (17).

8. Spinning cone (100) according to one of the preceding claims, characterized in that the disturbance device has at least one recess designed as an asymmetrical recess (10), wherein the asymmetrical recess (10) has a long edge (12) and a short edge (14) which are arranged in two notch angles (37, 38), wherein a steeper notch angle (37) is arranged in a rotational direction (U).

9. Spinning cone (100) according to one of the preceding claims, characterized in that the spinning cone tip (110) has an outer diameter (D), wherein the The interference device is particularly designed and arranged such that it projects at least partially beyond the outer diameter (D).

10. Spinning cone (100) according to one of the preceding claims, characterized in that the disturbance device is designed as a recess (11), in particular as a notch, in an inner surface, in particular a concave inner surface (17), wherein the notch in particular does not break through into the outer surface (20).

11. Textile machine, in particular an air spinning machine, comprising at least one air spinning device (24) with an air spinneret (30) comprising a spinning cone (100) according to one of the preceding claims.

12. Method (200) for cleaning a spinning cone (100) of an air spinneret (30), in particular a spinning cone (100) according to one of claims 1 to 10, characterized by the steps: - carrying out (220) a rotational revolution (50) of wrapped fibers (26a) around an axis of symmetry (34) of the spinning cone (100); - an interaction (230) of the wrapping fibers (26a) during a full rotational revolution (50) with at least one disturbance device in such a way as to produce an imprint (240) of a movement, in particular an oscillation, of the wrapping fibers (26a) interacting with the disturbance device.

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