LU504418B1 - sliver feeders and processes - Google Patents

Abstract

Sliver feeder and method The invention relates to a sliver feeder for a textile machine having at least one receiver and at least one inserter. In order to improve the handling of fiber material and to increase the quality of a sliver to be transferred to a pre-compressor and thereby increase the process stability and thereby save resources, it is provided that the receiver is designed and arranged to receive a sliver, in particular from a can of the textile machine, and to transfer it to the inserter, wherein the inserter has a take-over section and is designed and arranged in such a way as to transfer the sliver to a sliver guide, in particular to a receiving section of a pre-compressor.

Description

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P/MNU504418 06.06.2023

Description

sliver feeders and processes

The invention relates to a sliver feeder for textile machines. The invention relates to a

vortex nozzle. The invention relates to a service unit. The invention also relates to a method for taking up a sliver in a textile machine. The invention also relates to a

textile machine.

Sliver feeders are used in the field of textile machinery, especially spinning machines or

Sliver feeders are used to transfer fiber material, which can be presented as a sliver in cans, to a spinning device, also called a spinning unit.

The handling of fiber material is a technical challenge, as the fibers must be held together in order to be processed, but must not be compressed too much, as this would make further processing more difficult. The handling of many individual fibers in a fiber band is only possible in a complex way at the transfer point to the spinning unit of the textile machine. This can lead to failures in the textile machine, for example due to a blocked spinning unit if the

Fibre material is not transferred to the receiving section accordingly. This can also lead to downtimes because the fibre band is lost and has to be re-recorded. This costs time and therefore resources.

The object of the invention is to improve the handling of fiber material and to

To increase the quality of a sliver to be transferred, in particular to improve the

To increase process stability and save resources.

The object is achieved by a sliver feeder with the features of claim 1. The

The object is solved by a vortex nozzle with the features of claim 7. The object is solved by a service unit with the features of claim 9. The object is solved by a method with the features of claim 10. The object is solved by a

Textile machine with the features of claim 14.

Advantageous embodiments of the invention are the subject of the subclaims. -1-

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According to one aspect, the task is performed by a sliver feeder with the features of the

Claim 1 is resolved.

A sliver feeder can have at least one receiver and at least one inserter. The receiver can be designed and arranged to receive a sliver and transfer it to the inserter. The insert has in particular a

Transfer section and is designed and arranged in such a way to transfer the fiber band to a

Fiber sliver guide, in particular to a receiving section of a pre-compressor. The handling of fiber material can be improved in this way. Furthermore, the quality of a fiber sliver to be transferred to a fiber sliver guide can be increased. This makes it possible to increase process stability and thus save resources.

A section is understood to mean a region of a part or portion of a physical object, such as a component or an element of a component or of an appliance or device, which is limited in its dimensions.

Fibers are presented in particular in the form of a fiber band, whereby the fiber band is a

The fibers are connected to each other in such a way, for example purely by mechanical friction forces within the fiber band, that the

The fiber band does not fall apart on its own and the fibers can be transported. The fiber band is particularly designed to be inserted into a textile machine. The fiber band can be designed to be fed to a fiber band guide, in particular a pre-compressor.

A sliver guide is in particular a structure that is designed and arranged to guide a sliver between a can and a spinning station. This can, for example,

The weight load on the fiber band, e.g. due to its own weight, can be reduced.

This makes it particularly less likely that the sliver will tear off the spinning station or that the sliver will break.

The sliver guide can in particular be a receiving section of a pre-compressor.

Pre-compressors are devices in a textile machine that increase the density in a fiber band -2-

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P/MNU504418 06.06.2023 can increase. Pre-compressors can be designed to prepare the sliver and the fibers transported therein for a textile manufacturing process such as a spinning process, wherein the spinning process is carried out in particular in a spinning station of a corresponding

spinning machine. The pre-compressor is designed to pre-compact the

fiber band before the fiber material of the fiber band is subjected to further

A processing process, such as spinning, in which a thread is made from the

The pre-compression can be such that the

The fiber band is compressed in a defined manner with respect to the fiber band thickness when passing through the pre-compressor. For this purpose, the pre-compressor can in particular have a

tapered in the direction of sliver transport

fiber band guide section. The tapering can be continuous, in particular without edges, or discontinuous, for example in steps.

The fiber bands are fed into a textile machine in so-called cans. A can can be a vessel designed to hold at least one

fiber band. A fiber band end can protrude over the edge of a can in order to be detected and picked up by a pickup.

Alternatively or additionally, a pickup can also reach into a jug to

to take up sliver from it. The sliver is stored in particular in cans, which can be designed to be interchangeable. The sliver can thus be taken out of a can and fed into a textile machine. In order to enable the transition from the can to a sliver guide, such as a receiving section of a pre-compressor, a device may be necessary that can carry out the removal from the can.

A pick-up is in particular a device that can pick up a sliver from the edge of a can and/or from a can. The pick-up can be carried out by, for example, a mechanical or electromechanical gripping device. Alternatively, according to a preferred embodiment, a suction device can be provided, as will be described elsewhere. The pick-up takes over in particular the

Function of picking up the sliver end from the can.

Embodiments can be provided in which the receiver also functions as a feeder. The receiver can not only take up the sliver, but can also feed it into the sliver guide, for example the -3-

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receiving section of the pre-compressor, and thus be constructed as an insert. This allows a simpler structure to be implemented, since only one assembly can be provided.

A feeder is in particular a device (such as this) which is in particular arranged and designed to insert a sliver into a feed section of a spinning station, wherein the feeder is at least arranged and designed to feed the sliver to a

The feeder can be provided in a unit with a pickup, as described above. Alternatively (or additionally for various

Spinning stations), the inserter can form its own assembly, which can in particular be designed in such a way that it has a take-over section which can be positioned relative to the receiver in such a way as to enable take-over from the receiver.

The feeder and the receiver can be positioned opposite each other in a transfer position so that the transfer can take place in a line. In other

In other words, the depositor can face the receiver to

Transfer / acceptance of the sliver. The inserter is furthermore particularly designed to then carry out a movement in order to bring the sliver close to the

The feeding section of a spinning station, in particular a

Sliver feeder for feeding the sliver to a downstream spinning unit, which spins the thread, and the receiving section of the inserter are opposite each other. This enables easy transfer and reduces the probability that the sliver will be

The amount of data lost (in the sense of being dropped) during handovers is reduced.

In this and other preferred embodiments, it can be provided that the inserter is designed and arranged in such a way that when the fiber sliver, in particular a fiber sliver end, is fed to the feed section of the spinning station, it threads or inserts the fiber sliver into a fiber sliver guide according to one of the described preferred embodiments.

According to one aspect, the insert may be designed to be in a position of

The sliver, especially the sliver end, can be picked up by the

The transfer section of the insert can be designed as a suction section of the insert, which is oriented in particular parallel to a holding orientation of the receiver in order to -4-

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To suck in the sliver, in particular the sliver end, in particular in such a way as to

The fiber band or the fiber band end can be picked up directly. This reduces the probability of the fiber band being dropped. This particularly increases the

process stability and thus conserves resources.

In this and other preferred embodiments, a receiving portion may be

The suction section is formed in particular by the opening of a suction pipe, whereby the pipe forms a main suction direction which is in particular perpendicular to the opening surface. This can also correspond to a suction flow (in the physical-mathematical sense) or coincide with it.

The expression “oriented parallel to a holding orientation of the receiver” can be understood in particular to mean that the orientation can be defined in particular by the main suction direction described above. This main suction direction is in particular parallel to a transfer direction from the receiver to the inserter in a

Transfer arrangement of the two devices. Both directions can particularly coincide on a common line.

The expression “in a position of the pickup” may refer in particular to a

Transfer position of the depositor relative to the receiver. Alternatively, preferred

Embodiments can be provided in which the receiver moves towards the feeder in order to facilitate a transfer of the sliver, in particular the end of the sliver, to the feeder. In one position of the receiver, the feeder also takes up a position.

In another position of the depositor, it may be provided that the depositor is in a

Close to the receiving section of the pre-compressor in order to enable a corresponding transfer of the sliver to the receiving section of the pre-compressor. This enables a transition from one position to the other position and vice versa, in particular by means of a

Movement of the feeder and/or the pick-up as described elsewhere.

The pickup can also alternatively or additionally perform a movement in order to be able to change from a pickup position (one position) to a transfer position (another position) and vice versa.

The fiber ribbon, in particular the fiber ribbon end, can be taken over directly. The “direct” refers to the possibility that for a period of time a contact -5-

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P/MNU504418 06.06.2023 of the sliver or the sliver end with both the pickup and the

Depositor can do this. In particular, it does not have to be deposited in between in order for the depositor to pick it up again. Instead, the transfer is carried out immediately, in particular without any intermediate stages (and/or steps).

According to one aspect, the inserter can be designed to carry out a movement (as already mentioned above) in order to transfer the sliver to a feed section of a spinning station and/or a receiving section of a pre-compressor. The inserter and the feed section of the spinning station can be oriented in such a way that the sliver is curved during the transfer. This enables a reproducible transfer in particular. This also provides a travel path for the inserter that is easy to travel between a (first)

Position of the feeder to the receiver and another (second) position of the feeder to the spinning station. The transfer can be made in particular to the

feed section of a spinning station, in particular to a rotor or air spinning station.

The movement can be a rotational movement of an insert, alternatively or additionally an entire assembly can rotate around at least one axis. This allows the

Depositor can switch between the previously described positions (also referred to as positions) in which he can take over the

fiber band, in particular the fiber band end, from the pickup and in another position a transfer to a receiving section of the pre-compressor and/or

feed section of the spinning station.

Here and elsewhere, takeover and transfer are used particularly relative to the module just described. An example is the transfer or

Delivery from the receiver to the depositor is to be understood as the acceptance or reception of the depositor from the receiver. Thus, the assemblies and devices can also take on the different roles, as receiver and dispenser or as transferor and

transferee.

A curvature of the fiber band is designed in particular in such a way that the

Sliver is oriented in a (first) orientation in the suction section of the insert, -6-

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P/MNU504418 06.06.2023 while the sliver is in a different (second) orientation in the feed section of the

Spinning position. The two orientations of the sliver can be mirrored to each other on an axis, in particular a vertical axis. The sliver bends through the mirror plane, particularly when transitioning from one orientation to the other. This allows a firm and controlled

In particular, the feeding section of the spinning station is

Sliver feed section, for example in the form of a feed roller such as a feed roller of a

Rotor spinning machine or an input roller of an input roller pair of a

drafting system of an air spinning machine.

According to one aspect, at least one preparation device, in particular a

Vortex nozzle, further in particular at least one separating nozzle, may be designed and arranged, in particular in such a way as to receive a fiber band end from the receiver and for a

This is done in particular by preferably carrying out at least one of the following functions, cutting the sliver end and/or

Sharpening of the sliver end, carried out by the preparation device. Under a

Sharpening is analogous to a pencil, a reduction of the fiber band thickness until the free

end of the fiber band, in particular by compressing the fibers and/or

Reducing/thinning the number of fibres. In other words, the

The fiber band thickness increases continuously starting from the free end of the fiber band in the direction of extension of the fiber band until the fiber band thickness of the tapered area of the fiber band thickness corresponds to the immediately adjacent section of the fiber band and merges into it. This allows the fiber band to be prepared in order to

Fibers can be handled more easily during handovers / takeovers, which means that

Process reliability can be increased and the transition can be optimized.

There may be preferred embodiments that incorporate the aforementioned aspects and

Embodiments can be combined with a preparation device as described here. In other preferred embodiments, such as with other sensors or other

inserts, the preparation device as described here can also be used.

The preparation device serves in particular to separate a fiber band end from the

to be taken over by the receiver and for a handover to the depositor (or for a handover from

This allows the user to prepare the feeder for the spinning station. This allows the user to prepare the feeder for the spinning station independently of the structural and functional design of the feeder, the receiver or the feed section described here -7-

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P/MNU504418 06.06.2023 the spinning station and/or the receiving section of the sliver guide, in particular the

Pre-compressor, and their relative positions in different positions, as described here, a preparation of a fiber band end is possible in order to achieve a stable

To facilitate the handover and to reduce the likelihood of any damage to the

fiber sliver or loss of the fiber sliver. This makes it possible to increase process reliability and to use fewer resources.

A sliver end is in particular a free end of the sliver with which it is inserted into the

feed section of the spinning station or with which it can be received or is received in the suction section of the inserter.

According to a preferred embodiment, a separating nozzle can function as a preparation device. In this case, it can be provided in particular that a fiber ribbon end is separated in order to obtain a new, "fresh" fiber ribbon end. This allows damaged fibers to be removed in order to reduce the risk of breakage in a subsequent thread production process. The separation can be carried out in particular by applying a negative pressure. A section behind the free end of the fiber ribbon is pulled apart in such a way that the fiber ribbon end is separated from the fiber ribbon and removed. However, the separation can also include cutting the fiber ribbon, in particular by means of a cutting tool.

Alternatively or additionally, a sharpening of the fiber band end can be provided, in which the

Fibers are tapered towards the end and the diameter of the fiber band decreases towards the end of the fiber band. For this purpose, within the

Pressure fluid nozzles can be provided in the preparation device, which generate a conical compression of the fibers towards the fiber ribbon end by means of a pressure fluid jet. This allows the pointed fiber ribbon end described to be formed.

According to a preferred aspect, the sensor can have a vacuum sensor, which is designed and arranged in particular in such a way that a fiber band monitoring can be carried out. The vacuum sensor can be designed and arranged to monitor a vacuum prevailing in the sensor in order to, if necessary, use a

threshold value to initiate a further sliver search. This makes it possible to determine whether the sliver has been successfully transferred to the feeder, as well as -8-

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P/MNU504418 06.06.2023 a loss of the fiber band.

The fiber band monitoring can be used in particular to determine whether a

Sliver has been picked up accordingly. It can be provided that a defined series of work stations can be covered by a sliver feeder of the type described here in a textile machine. This can be made possible because the sliver feeder described is arranged on a service unit, as described elsewhere. The work stations can each be a can, a

Feed section of a spinning station belonging to the respective work station and/or a

The sliver feeder can be connected to the

A pickup or a different monitoring device such as a sensor or a camera determines whether the fiber band has been picked up. If several unsuccessful

Attempts at a work station (the number can be predefined, but can also be set) can be made so that the sliver feeder moves to the next work station and ignores the one work station, marks it as unresolved or aborts its journey and issues a warning to call an operator. The described

Actions are carried out if sliver loss occurs repeatedly (again, adjustable or predefined number of repetitions).

Alternatively or additionally preferably, the insert may comprise a vacuum sensor.

This makes it possible to detect a successful transfer of the sliver to the feeder as well as a loss of the sliver.

The vacuum sensor can monitor the vacuum during fiber sliver monitoring in such a way that a further fiber sliver search can be initiated based on a threshold value. The threshold value can be defined as a number of unsuccessful attempts. Alternatively or additionally, the threshold value can preferably represent a vacuum level (vacuum level or strength of the vacuum) from which it can be deduced whether a fiber sliver has been picked up.

According to a preferred aspect, a holding device for the fiber band can be provided, in particular arranged on the receiving section of the fiber band guide, in particular the

Pre-compressor, or on a support frame of the work station, wherein the holding device is further preferably arranged upstream of the receiving section in the fiber band transport direction.

The holding device has in particular at least one of the following structures: -9-

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A support structure, in particular a support hook or a support eyelet, can be provided to support the fiber band against its own weight in order to thereby reduce the tension along the direction of gravity on the fiber band, in particular on the fibers in the feed section of the

Spinning station and/or the receiving section of the sliver guide, in particular the

pre-compressor. This can reduce the likelihood of fiber damage. Furthermore, the likelihood of the fiber sliver breaking can be reduced.

It is also possible that the fiber band is guided in this way. Alternatively or additionally, the support structure can be designed and arranged in such a way as to restrict, in particular limit, a movement of the fiber band away from the machine, in particular in the lateral direction (i.e. towards the long side of the machine). This can also lead to a guidance of the

sliver into the feeding section of the spinning station and/or into the receiving section of the

Sliver guidance, especially of the pre-compressor, can be improved.

A guide structure can be provided which is in particular designed and arranged to provide a lateral guide at least in the direction of one side of the fiber band, in particular in the direction of one side of the fiber band in the longitudinal direction of the

Textile machine (i.e. to a frontend or backend side of a textile machine or

In other areas, the

Swinging out of the sliver parallel to the long side of the textile machine must be limited.

This can reduce lateral tensile forces, which improves the guidance of the fiber band and can reduce the likelihood of fiber damage. The guide structure can

Part of the sliver guide, especially the pre-compressor. Preferably, the

Guide structure designed and arranged to guide the fiber band into the receiving section of the

pre-compressor and at the same time limit it laterally. According to a preferred embodiment, the guide structure can limit the receiving section at least partially or completely laterally. Accordingly, the guide structure is parallel to the

The fiber band guide direction of the receiving section is arranged at least partially or completely adjacent to it. Both the guide structure and the receiving section can be arranged and/or formed on a surface of a plate-shaped carrier element, for example in the form of a front plate or cover plate.

Furthermore, an anchoring structure can preferably be provided between the receiving section and the

The anchoring structure can be a limitation for the -10 -

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Form a sliver parallel to the long side of the textile machine.

Anchoring structure preferably forms with the receiving portion and the support structure a U-shaped or C-shaped

Receiving area, into which the fiber tape can be introduced or fed from the inserter via the open side and can also be removed. In particular, the

Guide structure connects the receiving section with the support structure, whereby the support structure is anchored. In other words, the design can be such that the

Anchoring structure is arranged on the receiving section and is supported by it, wherein the support structure is arranged on the anchoring structure and is supported by it and is thereby anchored. The connection of the structures to one another can be form-fitting, force-fitting or material-fitting. The anchoring structure is particularly preferably designed as a rod-shaped

carrier element.

According to a preferred embodiment, an at least partially movable

The locking structure (also referred to as locking device) can be arranged and designed to cooperate with the support structure, in particular on the anchoring structure and/or the fiber band guide, in such a way that in a first state, the

Fiber band is blocked from the area of the laying structure and in a second state the

Laying structure is accessible for inserting the fiber tape. The locking structure can preferably be formed by a locking element such as an eyelet and/or a hook.

Alternatively, the blocking structure is preferably formed by a rod-shaped blocking element.

The locking structure can be movably mounted on at least one joint.

Locking structure can be movably mounted on the joint in particular such that the movement is in particular in a direction parallel and/or antiparallel to a direction of movement of the

The direction of the movement can be at least one

Vector component, which can be directed to one side of the workstation and/or the textile machine. The joint can preferably be arranged on the support structure or connected to it. Furthermore, the joint can preferably be a component of the

form a support structure.

In this or other preferred embodiments, the barrier structure may be formed by means of a

Interaction, for example with the insert, into an open position. It can be provided that the locking structure moves back into the locked position, in particular independently, for example by means of a return spring, which in particular -11 -

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P/MNU504418 06.06.2023 is arranged and designed so that it cooperates with the joint for resetting.

The return spring can preferably be arranged in the joint. The locking position can be the basic position. This allows active monitoring of the position in a

operation is eliminated, which simplifies the installation.

In order to achieve the described advantages and effects, the sliver, in particular the sliver end, can be transferred from the feeder to the receiving section, in particular the receiving section of the pre-compressor, into the receiving area of the

The term “for a handover from

Insert to the receiving section (of the pre-compressor)" on the possibility of threading into the

Receiving area of the support structure (in time) before the transfer to the receiving section (of the

pre-compressor) or alternatively after transfer to the receiving section (of the pre-compressor).

According to a preferred embodiment, the anchoring structure, the support structure, the

The locking structure and the receiving portion are designed and arranged such that they

The receiving area for the fiber band in a circumferential arrangement direction of the structures and the receiving section is circumferentially limited to at least 75% and more preferably circumferentially in a range of 95% up to and including 100%. The insert is arranged and designed to limit the fiber band via the interaction with the movable blocking structure to the

receiving area so that the fiber band can be transferred to the laying structure.

According to a preferred embodiment, the holding device can be a single component which can optionally be arranged in the path of the sliver (also referred to as sliver path) between the can (also referred to as spinning can) and the sliver guide, in particular on a frame of the work station or the

Textile machine. A work station can be the place where a spinning station can be arranged. A bobbin production for winding a spun thread on a

Bobbin, especially cross-wound bobbin, in one workstation. More preferably, the

Sliver guide with the holding device is made of a single component and in the

A single component is understood to be a "12 -

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component understood.

The receiving section of the sliver guide, in particular of the pre-compressor, can be a

Area which can be located directly/immediately in front of the section of the sliver guide which guides the sliver in contact. The sliver can be on or in the

recording section must be inserted or inserted.

According to a further independent aspect, the object of the present invention is achieved by a nozzle body comprising a vortex nozzle, wherein the nozzle body is designed for a

Sliver feeder is designed in particular according to one of the described embodiments. The swirl nozzle is designed to be arranged in the nozzle body, in particular in a non-destructively replaceable manner. Alternatively, the swirl nozzle can be arranged fixedly in the nozzle body. The arrangement can be such that a sliver end is received by the receiver and prepared for transfer to the feeder by performing at least one of the following functions, severing a previous sliver end for

Formation of a new fiber sliver end or sharpening of the fiber sliver end for

Formation of a pointed fiber band end, as described above, can be carried out. This allows the advantages and effects, particularly in relation to the

Sliver feeders described above. Reference is made here in particular to the statements made elsewhere. This allows the sliver or the

The fiber band end must be prepared in particular in order to be able to handle the fiber band or the fiber band end more easily during transfers / takeovers, in order to

To increase process reliability and optimize the transition.

With regard to cutting and/or sharpening, reference is made to the information given elsewhere.

These apply accordingly to the vortex nozzle described here. This means that the separating nozzle described elsewhere can be a vortex nozzle.

The vortex nozzle has a cavity in which a vortex can be formed. The vortex can be designed in such a way that at least a quantity of

Vectors of a vortex vector field have a component that corresponds to a component of the

cavity wall in a direction of rotation. In other words, a vortex is formed which is at least partially parallel to the cavity wall. The -13-

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The cavity wall is designed in particular with a circular and/or oval cross-section.

The vortex nozzle can be designed in such a way that it is replaceable. The

The vortex nozzle is designed in particular to be removed from a nozzle body or to be inserted into a nozzle body. This allows the vortex nozzle to be

Design and in particular in its ability to form a vortex, can be easily adapted to the fiber band material.

According to one aspect, the vortex nozzle has a pressure fluid nozzle. The pressure fluid nozzle is designed and arranged in such a way that a pressure fluid flow can be introduced into the cavity of the vortex nozzle in order to generate a pressure fluid flow vortex in the cavity. This allows the fiber sliver end to be prepared in a defined manner in order to pressurize the fiber sliver or the fiber sliver end during the transfers/

To make takeovers easier to handle, thereby increasing process reliability and optimizing the transition.

The pressure fluid nozzle can be connected to at least one pressure fluid guide from a pressure fluid source in order to supply the pressure fluid nozzle with a pressure fluid flow.

Pressure fluid nozzle is particularly designed and arranged in such a way as to

To introduce a pressure fluid flow with at least one vector component parallel to a cavity inner wall along a circuit. The pressure fluid nozzle can be arranged in a direction that has at least one vector component that is in a tangential direction to the

The direction in which the pressure fluid nozzle cuts the cavity inner wall to inject the pressure fluid flow into the cavity can be

Angle to the tangential direction. Compressed air, dry air and/or nitrogen as well as mixtures thereof can be used as the pressure fluid.

The direction in which the pressure fluid nozzle cuts the cavity inner wall in order to introduce, in particular to blow, the pressure fluid flow into the cavity is in particular a

Main flow direction from a cross-section of the pressure fluid nozzle into the cavity interior.

The task is further assessed from an independent perspective, in particular by a

Service unit detached. A pickup and a suction device with

Suction section on the service unit, which are assigned to each other in such a way that -14 -

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P/MNU504418 06.06.2023 a section of a fiber ribbon with a fiber ribbon end of a

The fiber band is to be sucked into the suction section of the suction device at least temporarily and at least partially. The section of the fiber band to be sucked in can preferably be the fiber band end. A flow section in the

Service unit can be arranged downstream of the suction section and designed in such a way as to form a suction flow at the suction section of the suction device. At least one filter can be arranged in the flow section, wherein the service unit and the filter are preferably designed to arrange the filter so that it can be removed from the flow section. This allows a separate suction device to be used to filter the sucked-in

Pressure fluid flow, in particular an air flow, in particular after a separation of the

fiber band end, whereby fiber residues remain stuck to the filter. The

The suction device is thus spared from fiber residues, which can improve the service life of the suction device. The service unit and/or the

Suction device with a monitoring unit, in particular a pressure fluid sensor, for

Monitoring of the pressure fluid flow and/or the pressure value in an area between the filter and the suction device and/or in the area of the suction device.

Deviation from a threshold value can indicate that the filter is clogged with

Fibre material can be removed so that the filter can be cleaned in the event of defined clogging, in particular by removing it. For this purpose, the monitoring unit can preferably be communicatively connected to an alarm unit in order to alert the user in the event of deviation from the

threshold value to issue an alarm signal, in particular visual, optical or haptic.

For example, the alarm unit can be visibly arranged on the service unit and designed to output a visual alarm signal. Alternatively or additionally preferably, the alarm unit can be integrated into a mobile device such as a smartwatch, a tablet, a laptop or the like or arranged on it and designed to output the alarm signal visually, haptically and/or acoustically.

The service unit can usually be a unit that can be moved along the work stations of the textile machine and is suspended from a support frame of the textile machine.

Preferably, the service unit has a connecting structure, for example in the form of a

Roller unit, by means of which the distance between the service unit and the support frame can be reliably maintained. This prevents vibrations of the service unit when travelling along the work sites and ensures reliable guidance of the

service unit. In particular, the roller unit has a roller, -15-

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P/MNU504418 06.06.2023 which is arranged and designed to be guided along a roller guide on the support frame of the

Textile machine to be rolled. The roll is connected to a roll holder with a

The roller unit is preferably connected to a lower frame of the service unit.

Area of the service unit on the side of the service unit facing the support frame. This means that the distance between the roller holder and the roller can be kept small, which means that the roller unit can be designed with reduced installation space.

Alternatively, the service unit can be a robot unit — such as a

Robotic vehicle — such as a so-called AGV (Automated Guided

Vehicle) or AMR (Autonomous Mobile Robot), which is located within a facility in which the

textile machine can move independently or autonomously in a known manner.

According to a preferred embodiment, the sliver feeder, in particular as described elsewhere, can be arranged on the service unit. The

The sliver feeder can be used particularly in a lower area (lower section) of the

Service unit, provided that the service unit is the one connected to the

Suspended from the support frame of the textile machine and movable along the textile machine

Service unit. The sliver feeder can be positioned below the

This allows the sliver feeder to be positioned using the

Service unit can be moved along the textile machine. The pick-up can be moved from one can to another can in order to remove a sliver from a can or from an edge area of the can in an automated manner and to transfer it to the feeder for insertion, as described elsewhere. By arranging the sliver feeder below the service unit, the

Pick-ups closer to the ones arranged or set up below the spinning stations

Cans are brought in to facilitate the collection of the sliver.

According to a preferred embodiment, a reading unit for reading a memory and/or a code is arranged on the service unit or the sliver feeder. The

The reading unit is particularly arranged and designed to have a

Memory such as RFID or a chip or code such as a barcode and/or barcode and to provide the read information to an evaluation unit for evaluation. The stored and readable information can be information about the

Can deposited fiber band material, which is sent to a work station for processing - 16 -

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P/MNU504418 06.06.2023. The reading of this information by the reading unit and the

Providing the evaluation unit enables the check whether the workstation has the correct

Sliver material has been assigned for the production of a predetermined thread of defined quality, for which a specific sliver material is required. The

The evaluation unit can preferably be communicatively connected to a control and/or regulating unit, which controls the sliver feeder in a defined manner.

Evaluation that the workplace has received incorrect or incorrect fiber tape material for the

Production of the predetermined thread has been assigned by the evaluation unit of the

Control and/or regulating unit is provided with appropriate information. The control and/or regulating unit is furthermore designed in particular to control the sliver feeder in view of this information in such a way that the sliver feeder does not feed the sliver from the can to the spinning station of the work station. This can prevent the work station from using the wrong or incorrect fiber material for the

Production of the predetermined thread, which can minimize waste and defective production.

The task is also carried out according to an independent aspect by a procedure for a

Sliver take-up in a textile machine. The process has in particular the

Step of picking up a fiber band section by a pick-up. Alternatively or additionally, the method comprises the step of transferring a fiber band, in particular a fiber band end, from the pick-up to a feeder. Alternatively or additionally, the method comprises the step of transferring the fiber band, in particular the fiber band end, from the feeder to a pick-up section, in particular a

pre-compressor and/or into a feed section of the spinning station.

With regard to the picking up of a sliver section by a pick-up, the definitions, technical effects and advantages previously given with regard to the device continue to apply accordingly. In particular, the picking up of the sliver section is carried out by the

Transducer such that the transducer has a different fiber band end from a free

fiber sliver section in order to be able to transfer the free fiber sliver end section.

Alternatively, the pickup can preferably pick up the fiber ribbon end. This allows the

Describe the method by the features of the device accordingly. The same applies to the description of the device by the features, effects and advantages that are presented in relation to the method. This also applies accordingly to the transfer - 17 -

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P/MNU504418 06.06.2023 a fiber band from the receiver into a feeder and for transferring the

sliver from the feeder into a feed section of a spinning station and/or a

receiving section of a pre-compressor.

According to one embodiment of the method, fiber band monitoring can be provided. A vacuum sensor can monitor a vacuum and, based on a

threshold value initiate another fiber band search.

With regard to the 'Fiber Sliver Monitoring®', as well as with regard to the monitoring of a

Negative pressure and the initiation of a further fiber band search based on a threshold value, the definitions given in relation to the device, the effects presented and the advantages that can be achieved in this regard also apply accordingly to the

Procedures. Both categories can be divided by the definitions, effects and advantages of the other

Describe the category. The same applies to the textile machine system.

Furthermore, an embodiment of a described method can provide for a separation, in particular a cutting, of the fiber band end. Alternatively or additionally, a sharpening of the

fiber ribbon end to a pointed fiber ribbon end.

With regard to the "separation, in particular cutting of the fiber sliver end", as well as with regard to the "sharpening of the fiber sliver end", the definitions given in relation to the device, the effects presented and the advantages that can be achieved in this regard also apply accordingly to the method. Both categories can be described by the definitions, effects and advantages of the other category.

According to an independent aspect, a method can be provided in which in particular the step of separating the fiber band end (severing a fiber band end for

Creation of a new fiber sliver end), in particular cutting the

Alternatively or additionally, the

The fiber band end can be provided for the formation of a pointed fiber band end. This allows the advantages and effects described elsewhere in relation to the

Embodiments that implement corresponding method steps also apply to other

Procedure for fiber tape application. -18-

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P/MNU504418 06.06.2023

According to one embodiment of the described methods, the step of introducing the

A fiber band can be provided for the

Transfer to the feeding section of the spinning station and/or to the receiving section of the

Pre-compressor can be placed on a support structure of the holding device. Alternatively or additionally, the fiber band can be placed in a guide structure of the holding device.

The definitions, effects, advantages and features apply, in particular with regard to “insertion into a holding device”, the holding device, the “handing over to the

Feed section of the spinning station and/or receiving section of the pre-compressor” and the

Support structure, as well as the guide structure of the holding device, as explained elsewhere, continue accordingly.

According to an independent aspect, the object is achieved by a textile machine which in particular has a fiber sliver feeder according to one of the preferred embodiments described elsewhere. Alternatively or additionally, the textile machine can have a nozzle body with a vortex nozzle as described elsewhere.

Alternatively or additionally, the textile machine can have a service unit as described elsewhere. Alternatively or additionally, the object is achieved in particular by a textile machine which is designed and configured to carry out one of the methods as described elsewhere.

The textile machine can in particular be a rotor or air spinning machine, for which the

Sliver feeder can be designed. In the rotor or air spinning machine, the

Transfer of the sliver after threading into the holding device into the feed section (also referred to as sliver feed) of the spinning station of the rotor or air spinning machine. The

Sliver feed has in particular a controllable, driven roller for controlled

Feeding the sliver. The roller can (but does not have to) be preceded by a pre-compressor, as described elsewhere. The roller can be, for example, a

This can be a feed roller, which is responsible for feeding the sliver to the spinning device in the rotor spinning machine. Alternatively, the roller can be a

Input roller of an input roller pair of a drafting system, which

Air spinning machine is responsible for feeding the sliver to the spinning device.

The input roller pair can (but does not have to) be preceded by a pre-compressor, as described elsewhere. - 19-

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P/MNU504418 06.06.2023

In the following, embodiments of the invention are described in more detail with reference to figures, which show schematically and by way of example:

Fig. 1A shows a schematic representation of a detail view of a spinning machine;

Fig. 1B shows a schematic view of a working station of a spinning machine;

Fig. 2 shows a schematic view of a sliver feeder;

Fig. 3A is a schematic view of a separation nozzle;

Fig. 3B shows a schematic view of a separation nozzle with a

fiber ribbon end;

Fig. 3C is a schematic view of a separation nozzle with a fuse;

Fig. 4 shows a schematic view of a separation nozzle designed as a vortex nozzle;

Fig. 5 shows a schematic view of a sensor;

Fig. 6 shows a schematic view of a holding device on a

pre-compressor;

Fig. 7 shows a schematic view of a round can below a

Holding device on a pre-compressor;

Fig. 8A shows a schematic side view of a holding device with at least partially movable locking device on a pre-compressor;

Fig. 8B shows a schematic front view of a holding device with at least partially movable locking device on a pre-compressor;

Fig. 9 shows a schematic view of a service unit;

Fig. 10 is a schematic representation of a method;

Fig. 11A is a structural representation of a process step of a fiber band pickup by a pickup,

Fig. 11B is a structural representation of a process step of introducing a fiber sliver into a suction point for separation;

Fig. 11C is a structural representation of a separation process step;

Fig. 11D is a structural representation of a process step of introducing a fiber ribbon into a suction point for sharpening;

Fig. 11E is a structural representation of a process step of sharpening; and

Fig. 11F is a structural representation of a process step of inserting into a

Sliver guide of a pre-compressor. - 20 -

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P/MNU504418 06.06.2023

For elements and structures with the same effect and/or similar characteristics, the same

reference symbols are used.

Fig. 1A shows a schematic representation of a detail view of a spinning machine as

Example of a textile machine 600. The textile machine 600 can in particular have several

Work stations 620, which can be designed and arranged to each have a

A work station 620 is shown in a schematic

Representation shown in a detailed view in Fig. 1B.

In textile machines 600, a fiber band 135 can be presented to form the thread in a

Spinning station 465 of work station 620. Such textile machines 600 can therefore be so-called spinning machines. Spinning machines can be

Rotor spinning machines, as shown here as an example, can be provided. Alternatively, a

Air spinning machine (not shown) may be provided. The fiber band 135 can be attached to the

Textile machine 600, which can be done fully automatically or at least semi-automatically. For this purpose, the sliver 135 can be delivered in a so-called can 630, presented in a can 630 or an empty can 630 can be exchanged for a filled can 630 in order to prepare the sliver 135 for a

Work station 620. Textile machines 600 can also consist of a whole series of (homogeneous) work stations 620, as shown in Fig. 1A and described accordingly, at which a fiber band 135 can be repeatedly fed in order to maintain the spinning process.

In order to enable the transfer from the can 630 to a receiving section 460 of a pre-compressor 445, a sliver feeder 100 for a textile machine 600 can be used (per workstation). Alternatively, a service unit 900 can be provided, on which a

Sliver feeder 100 is arranged as described elsewhere. The

Service unit 900 can move (freely) along the textile machine 600 between the work stations, for example to insert a fiber band 135 into a spinning station 465. A

A schematic representation of the sliver feeder 100 is shown in detail in Fig. 2. A

Sliver feeder 100 has in particular at least one pickup 110 and at least one inserter 300.

An exemplary embodiment of an insert 300 is shown in its function in Fig. 11F - 21 -

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P/MNU504418 06.06.2023 and also described in this regard.

The pickup 110 serves in particular to receive the fiber band 135 from a

Can 630 in order to be able to transfer this sliver 135 to the feeder 300. The

In particular, the inserter 300 has a transfer section which is designed and arranged to transfer the fiber band 135 to a receiving section 460 of a pre-compressor 445.

The insert 300 can be further designed in such a way that it takes over a fiber band 135, in particular the fiber band end 140, from the receiver 110 in one position. The insert 300 shown in Fig. 2 is in particular constructed and arranged in such a way that the

The receiving section of the inserter 300 is designed as a suction section 310. The suction section 310 is oriented with its suction direction 350 in particular parallel to a holding orientation 180 (see also Fig. 5) of the receiver 110. As a result, the fiber band 135, in particular the

fiber band end 140. This can be done in particular in such a way that the

Fiber band 135 or the fiber band end 140 can be taken over directly from the feeder 300 without, for example, having to be deposited via an intermediate stage or intermediate structure.

In order to apply a negative pressure to the suction section 310,

Pipe systems 450 may be provided, which in particular have several segments 452, 454, 456. The suction pipe 320 of the insert 300 (in particular independently of the

Pipe systems 450) be bent, in particular a bend of as much as 90°, in order to be able to move from a supply area in which it is connected to an insert holder 340 into the largely parallel orientation between suction direction 350 and

Holding orientation 180 of the pickup 110. The suction nozzle 120 of the

Pick-up 110 can have a suction direction that deviates from a parallel orientation (not shown here due to the perspective, suction direction here is in the plane of the sheet). However, the sucked-in fiber band 135 that the pick-up 110 can have picked up can be transferred to the holding orientation 180 in order to be sucked in by the insert 300 in particular in this direction (and thus parallel to the suction direction 350 of the insert 300).

In this case, a rotation mechanism 480 (see also Fig. 11F) is arranged on the insert holder 340 in such a way as to move the insert 300 with its suction direction 350 close to the “292 -

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P/MNU504418 06.06.2023

Holding orientation 180, especially in the widest possible overlap, in order to

Sliver 135 or to take over a sliver end 140. After taking over the

The insert 300 can be inserted into the fiber band 135 or the fiber band end 140 by a

Rotational movement in the vicinity of a receiving section 460, in particular a

receiving section 460 of a pre-compressor 445. The sliver 135 or the sliver end 140 can be transferred to a feed section 462 of a spinning station 465 in order to initiate or carry out a spinning process. The feed section 462 in this preferred embodiment is a feed roller. The inserter 300 is designed to introduce and transfer the sliver end 140 into the access area of the feed section 462, in particular the feed roller, so that after the transfer of the

Fiber band end 140 from the inserter 300 to the feed section 462, in particular the

feed roller, the sliver end 140 is transported further from the feed roller in the direction of the spinning device.

The pre-compressor 445 can in particular provide a fiber band 135 for inclusion in the

Prepare the feed section 462 of the spinning station 465. A pick-up direction of the

Feed section 462 of the spinning station 465 in particular antiparallel to a

Orientation direction of the fiber band 135 or the fiber band end 140. For this

This causes a particular folding of the fibre band 135 or the

Sliver end 140 during transfer to the feed section 462 of the spinning station 465. In other words: the inserter 300 is designed to carry out a movement 365, in particular a rotational movement, in order to feed the sliver 135, in particular the

Fiber band end 140, to a receiving section 460 of a pre-compressor 445 and/or a

Feed section 462 of a spinning station 465, wherein the sliver 135, in particular the sliver end 140, is transferred to the feed section 462 of the

Spinning position 465 undergoes a curvature.

The fiber ribbon end 140 is shown in Fig. 3C. In contrast to a “normal fiber ribbon end 140”, this is a particularly conically tapered, post-compacted fiber bundle, referred to as a pointed fiber ribbon end 140b. The

The fiber band end 140 can, for example, "fiber out" (widen conically) after a separation step, as shown in Fig. 3B. In particular, the diameter and/or radius at the fiber band end 140 is larger (or at least the same size) compared to the average fiber band diameter, or compared to the -23-

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P/MNU504418 06.06.2023

Sliver diameter at a suction nozzle 120 of the pickup 110. This could result in a

Incorporation of the fiber ribbon end 140 into a feeder 300 may be difficult.

In order to better prepare the fiber band 135 for transfer by a feeder 300 and/or by a receiving section 460 of a pre-compressor 445, at least one

Preparation device 201, in particular at least one separating nozzle 200, can be provided, as shown by way of example in Fig. 3A. A separating nozzle 200 is in particular designed and arranged in such a way as to (briefly) receive a fiber sliver end 140 from the receiver 110. The fiber sliver end 140 can remain connected to the receiver 110 and remain attached to its suction nozzle 120. In particular, no complete transfer takes place in order to prepare the fiber sliver end 140 for transfer to the inserter 300.

Preparing can include at least one of the following functions (also referred to as

steps of an associated process) that are determined by the

preparation device 201 can be carried out:

The previous fiber band end 140 can be separated, in particular cut off or separated from the fiber band 135 by the suction of the suction device of the inserter 300. This allows the fiber band to be separated or cut in such a way as to form a new fiber band end 140a. This can prevent contamination or

Damages are removed and a clean, undamaged fiber ribbon end 140a can be presented for the further process steps.

An exemplary separating nozzle 200 is shown in a schematic representation in a

Detailed view shown in Fig. 3A. The separating nozzle 200 is arranged with a nozzle body 220 in a nozzle assembly 210. In Fig. 4, an exemplary embodiment of an isolated vortex nozzle 205, which can be used as a separating nozzle 200 in a nozzle body 220, is shown. A

Cuff 230 is placed on top. The vortex nozzle 205 can have a cavity 240 for receiving a

fiber ribbon end 140.

As shown in Fig. 4, pressure fluid nozzles 280 can be formed in the cavity 240, which are connected to a “24 -

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P/MNU504418 06.06.2023

Pressure fluid source (not shown). This can be done by inserting the nozzle body 220 into a nozzle assembly 210. The pressure fluid nozzles 280 are in particular designed and arranged in such a way as to introduce the pressure fluid or the pressure fluid stream at an angle relative to the inner wall of the cavity 240. In particular, a vortex of pressure fluid is formed which can move around the fiber ribbon end 140 in order to sharpen or separate it, as described elsewhere.

The nozzle body 220 can in particular have a suction section 260. This

Suction section can thereby form a laminar flow in the cavity 240 in order to

To suck the fiber ribbon end 140 into the cavity 240. An edge 286 can be beveled in order to ensure that a laminar flow from the environment is as free from turbulence as possible or to

To discharge the eddy current into the environment as eddy-free as possible. A recess 288 can be designed and arranged in such a way that the sleeve 230 can be arranged and screwed onto the nozzle assembly 210 in order to thereby fix the insertable \vortex nozzle 205 in the

The nozzle body 220 is arranged and secured. The pressure fluid nozzles 280 can be arranged in a

Surface structuring 289 or be arranged in it in order to

To support the formation of vortices and to support the flow of pressure fluid into the cavity 240. In particular, the surface structuring 289 can itself run in a vortex shape in the cavity 240.

As shown in Figs. 3A to 3C, the fiber ribbon end 140 can be formed from individual fibers 130. This fiber ribbon end 140 with its fibers 130 can be guided into the cavity 240 or by suction along the suction direction 350 (see Fig. 2) into the

Cavity 240. The suction can be adjusted so strong that the fibers 130 are at a point between the suction section 310 of the insert 300 and the

Suction nozzle 120 (here, in relation to the receiver 110, we are talking about a suction nozzle, but other holders for receiving a fiber ribbon 135 can also be provided accordingly) of the receiver 110. This allows a new fiber ribbon end 140a to be formed. The fiber ribbon 135 is held on the receiver 110 in particular with a correspondingly strong counter-suction. The separated fiber material (not shown) is transported away in particular via a waste pipe 250 (see Fig. 2 or Fig. 9).

Alternatively or additionally, especially after the separation 520 of an old

Fiber ribbon end 140 can be sharpened 530 of the fiber ribbon end 140 to a sharpened -25-

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P/MNU504418 06.06.2023

Fiber band end 140b. In addition to the suction section 260, pressure fluid nozzles 280 can also be provided in the cavity 240. These pressure fluid nozzles 280 can in particular be arranged and oriented in such a way that a rotary pressure fluid screw can be generated in the cavity 240. The pressure fluid rotation that can be initiated in this way can

Fibres 130 conically in the suction direction (even without suction; towards the rear part of the

cavity 240) and conically taper the fiber ribbon end 140 to the pointed fiber ribbon end 140b. The pressure fluid rotation can also twist the fibers 130 towards each other (also called twisting), which can increase the stability of the fiber ribbon end 140.

Compressed air, dry air and/or nitrogen as well as mixtures thereof can be used as pressure fluid.

Fig. 3B shows, as described elsewhere, a new fiber bundle as

Fiber band end 140, which can be reinserted into the cavity 240 after a separation (if the damage is only slight, further separation may be omitted in order to save material) in order to compress and twist the fibers 130 to form a compressed

To produce the fiber ribbon end 140 as a pointed fiber ribbon end 140b as shown in Fig. 3C, wherein the pointed fiber ribbon end 140b in Fig. 3C is removed from the cavity 240.

Fig. 5 shows an embodiment of a pickup 110 which is arranged on a base plate 185 and has a rotation suspension 170 in order to be able to pivot reversibly between two end positions in a pivoting direction 190. The orientation shown in Fig. can be referred to as a transfer position, since the orientation direction 180 can be parallel to a main suction direction 350. The pickup 110 rests firmly on a stop 155 in particular in order to stabilize the position.

In contrast, a receiving position (not shown) can be provided in which the

The pick-up 110 can be oriented as far as possible downwards, in particular vertically downwards, in order to pick up the fiber band 135 from a can 630 which can be arranged in particular below the work station 620.

The sensor 110 can have a vacuum sensor 160, which is particularly designed and arranged to carry out a fiber band monitoring.

Vacuum sensor 160 is designed and arranged to detect a vacuum in the suction nozzle 120 - 26 -

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P/MNU504418 06.06.2023 of the sensor 110 in order to determine a further

This allows the pickup 110 to determine whether a fiber sliver 135 has been picked up, or whether the fiber sliver 135 has been lost, or whether a search should be continued.

Fig. 6 shows a holding device 400a on a receiving section 460 of the pre-compressor 445.

The holding device 400a is provided for the fiber band 135. The

Holding device 400a has in particular a support structure 420. This can, as shown in Fig. 6, in particular be a support hook. Alternatively, a support eyelet can also be provided or other structures that allow the fiber band 135 to be at least partially placed. Furthermore, the support structure 420 allows a movement of the fiber band 135 laterally to the machine (lateral direction), i.e. out of the sheet plane, to be restricted, whereby the tensile forces on the fiber band 135 can be limited. Tensile forces can arise from gravity on the one hand, and from movements on the other. The

The support structure 420 can be arranged by an anchoring structure 430 on a plate-shaped support element designed as a front plate 440. Alternatively, it can be a one-piece component, which can also include a guide structure 410. The

Anchoring structure 430 is, according to this embodiment, a rod-shaped

Carrier element is formed, which extends from the front plate 440 to the support structure 420 in

The anchoring structure 430 can be attached to the

Front panel 440 or formed integrally therewith from the same material.

Additionally or alternatively, a management structure 410 may be provided, which also includes a

Sliver guide 446 of the pre-compressor 445 can form a cover plate. This allows the movement of the sliver 135 in the direction of the textile machine length from the front end to the back end (longitudinal direction; alternatively in the direction of the immediately adjacent

The fibre band 135 is particularly protected from

Transfer from the feeder 300 to the receiving section 460 of the pre-compressor 445 in the

Holding device 400a has been introduced.

Fig. 7 shows an exemplary embodiment of a round can 720 having a

Round can edge 710, which can act as the upper boundary of a wall of the round can 720. The wall can have a round can outer surface 715 as well as a

Round can inner surface 725. A fiber band 135 (not shown here) can - 27 -

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P/MNU504418 06.06.2023 in particular in a spiral shape in the round can 720. The

Sliver 135, as described elsewhere, into the sliver guide 446 in the form of a

receiving section 460 of the pre-compressor 445. A

Holding device 400a, as described in detail elsewhere, can be arranged on the pre-compressor 445 in order to support the fiber band 135 for pre-compression. In this case, a triangle can be formed between a receiving section 460, a point below in the round can 720 and the point of the outer radius at which a fiber band 135 is received, the longest side of which forms a course of the fiber band 135 in the

Pre-compressor 445 is simulated. It is also possible to distinguish between the support area on the

Holding device 400a and the underlying point in the round can 720, as well as by the

Support area and the outer radius at the point where the fiber band 135 is received

Triangle can be formed. The angle in the support area on the holding device 400a can become (too?) large, which can lead to the fiber band 135 slipping down from the

holding device 400a. This can lead to a tearing of the fiber band 135, in particular from a spinning station 465, which can lead to an interruption of the spinning process.

Fig. 7 also shows an RFID 632 arranged on the can 630, which readable

Contains information about the sliver material deposited in the can 630.

A reading unit (not shown) for reading the information of the RFID 632 is arranged on the sliver feeder 100. The reading unit is designed to send the read information to a

Evaluation unit (not shown) for evaluation. The evaluation unit can be any unit that is suitable for evaluating information. The

Evaluation unit can be part of the workstation 620, the textile machine 600, the

The information can be the sliver feeder 100, the service unit 900 or a unit arranged separately from it, to which the read information is transmitted for evaluation and which can evaluate the transmitted read information. The stored and readable information can be information about the material stored in the can 630.

This can be fiber band material that has been assigned to the work station 620 for processing. Reading this information by the reading unit and making it available for the

The evaluation unit enables the check to be made as to whether the correct fiber ribbon material has been assigned to the work station 620 for the production of a predetermined thread of defined quality, for which a specific fiber ribbon material is required. The evaluation unit can preferably be communicatively connected to a control and/or regulating unit (not shown). - 28 -

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P/MNU504418 06.06.2023, which controls the sliver feeder 100 in a defined manner. This means that

Evaluation that the workstation 620 about the can 630 has a wrong or incorrect

Fiber band material for the production of the predetermined thread has been assigned, corresponding information is provided by the evaluation unit of the control and/or regulating unit. The control and/or regulating unit is furthermore designed in particular to

In view of this information, the sliver feeder 100 is to be controlled in such a way that the

Sliver feeder 100 does not feed the sliver 135 from the can 630 to the spinning station 465 of the work station 620. This can prevent the

Work station 620 processes an incorrect or incorrect fiber material for the production of the predetermined thread, whereby waste and defective production can be minimized.

Fig. 8A and Fig. 8B show an embodiment of a further holding device 400b on a

Pre-compressor 445, wherein the further holding device 400b differs from that shown in Figure 6

Holding device 400a differs essentially in that the further holding device 400b is at least partially and at least temporarily closable. The holding device 400a and the further holding device 400b can each be removably attached to a support frame of the textile machine 600 or a work station 620 of the textile machine 600 via locking devices 405, 415. This allows the various described

Embodiments of the holding devices 400a, 400b can be designed to be interchangeable. Fig. 8A shows a side view of the further holding device 400b on the

Pre-compressor 445 with receiving section 460, Fig. 8B shows a front view.

In particular, a support structure 420 is formed with a joint 425 in order to

Locking device 435 to arrange the joint rotatably. In one state, the locking device 435 can prevent a lateral movement of a guided fiber band 135 to the side (in a

Front view). This means that the fiber band 135 can no longer be pulled away from the

The insert 300 or the fiber band 135 can make contact with the locking device 435 during threading, whereby the insert 300 and/or the fiber band 135 carried by the insert 300

Fiber band 135, the locking device 435 can rotate about the joint 425, wherein a distance between the locking device 435 and the guide structure 410 can be increased in order to thread the fiber band 135 into the further holding device 400b and the pre-compressor 445.

After releasing the sliver 135 by the inserter 300 after threading, -29-

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P/MNU504418 06.06.2023 the locking device 435 can return to the starting position (as shown in Figs. 8A and 8B), in particular automatically via a return spring arranged in the joint 425, in order to lock the support area. This can be done, in particular in the case of a

Using round cans 720, slipping of the fiber band 135 can be prevented.

Fig. 9 shows a schematic representation of an exemplary embodiment of a

Service unit 900. The covers 612 shown in Fig. 1A are not shown in order to gain an insight into the structure behind them. The

Service unit 900 has in particular two legs 610 and a connecting structure 448 on which the legs 610 are arranged. A U-shape can be formed. The

Sliver feeder 100, as described in detail elsewhere, is arranged below the connecting structure 448. In particular, the previously described structures of suction pipe 150, stop 155 and suction nozzle 120 are arranged on a

thigh side, while the preparation device 201, in particular with the

Vortex nozzle 205, in particular designed as a separating nozzle 200, with the nozzle body 220 are arranged on the other side of the leg. Their function and structure was shown on another

This section is described in more detail and reference is made to this information here.

The cavity 240 of the vortex nozzle 205 can be connected in particular via the suction section 260 to the

Waste pipe 250. This is connected in particular via a pipe system 450 via an inlet opening 275 to a flow section 915 in a leg 610.

The inlet opening 275 is arranged in particular in a partition wall 278. The

Partition 278 separates in particular the flow section 915 in the leg 610. The

Flow section 915 is designed in particular to guide a flow between the inlet opening 275 and a suction device 920. In particular, a filter 950 can be arranged in the flow section 915 in such a way that the

Flow section 915 guided flow penetrates the filter to separate the flowing fluid from

Fibers and fiber fragments. The filter 950 can be removed through a slot 955 in a filter holder 958 and thus replaced. The

The filter 950 can be inserted into the insert 955 in particular at an angle between 20° and 70°, further in particular between 35° and 55°, further in particular at an angle of 45°, relative to a main flow direction and/or relative to a tangential direction to the leg 610. - 30 -

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Fig. 10 schematically shows a method 500 for a fiber band take-up in a textile machine 600. The method 500 can comprise the step of taking up 510 a fiber band 135 by a take-up device 110, as described in detail elsewhere. The

Method 500 may comprise the step of transferring 540 a fiber band 135, in particular a fiber band end 140, from the receiver 110 into a feeder 300, as described in

Detail is described elsewhere. The method may comprise the step of transferring 540 the fiber band 135, in particular the fiber band end 140, from the feeder 300 into the

Feed section 462 of a spinning station 465 and/or the receiving section 460 of a

pre-compressor 445, as described in detail elsewhere.

The method 500 may include the step of monitoring the fiber band.

Vacuum sensor 160 monitors a negative pressure and initiates a further fiber band search based on a threshold value, as described in detail elsewhere, see in particular Fig. 5.

The method 500 may include a step of separating 520 a previous fiber ribbon end 140 to form a new fiber ribbon end 140a, as previously described with respect to the

Fig. 3A to 3C. The method may include the step of sharpening 530 the

sliver end 140 to form a pointed sliver end 140b, as described in detail with reference to Fig. 3C.

Independently of the previous descriptions of the method 500, a method 500 can be provided which can comprise one of the steps of severing 520 a previous fiber ribbon end 140 to form a new fiber ribbon end 140a, as previously described with reference to Figs. 3A to 3C. The method 500 can comprise the step of sharpening 530 the

fiber ribbon end 140 for forming a pointed fiber ribbon end 140b, as described in detail with reference to Fig. 3C.

The methods 500 may further comprise a step of inserting into a holding device 400a, b, in particular a holding device 400a as described with reference to Fig. 6.

In this case, a fiber band 135 for transfer 540 to the feed section 462 of the

Spinning station 465 and/or the receiving section 460 of the pre-compressor 445 on a

support structure 420 of the holding device 400a, as shown in relation to Fig. 6 -31-

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P/MNU504418 06.06.2023. Alternatively or additionally, the fiber ribbon 135 can be inserted into a guide structure 410 of the holding device 400a, as described with reference to Fig. 6.

A textile machine 600, as shown by way of example in Figs. 1A and 1B and described in this regard, can have a sliver feeder 100 as described with reference to Fig. 2. Furthermore, the textile machine 600 can be designed and configured to carry out a method as described with reference to Fig. 10.

An exemplary structural diagram of an embodiment of a pickup 110, in the step of

Picking up 510 (see also the exemplary schematic representation of a method 500 in Fig. 10) is shown in Fig. 11A. In particular, the fiber band 135, which is stored in a can 630, is picked up. The can 630 is in particular in a

Can area 1100. The can 630 can have a can edge 1110 between a can inner wall 1120 and a can outer wall 1115. The fiber band 135 can be laid over the can edge 1110. The suction pipe 150 of the

The pick-up 110 is directed downwards in particular to pick up the sliver 135. A suction can be formed via a suction nozzle 120 of the pick-up 110 in order to

To suck up fiber band 135.

In Fig. 11B, a preparation step is shown as an exemplary structural embodiment in which a severing 520 of a fiber band end 140 is to be carried out. In a preparation step, the pickup 110 can reach a particularly horizontal position by moving the pickup 110 up to a stop 155. In this case, the

Pickup 110 can be moved towards the preparation device 201 described elsewhere, in particular the vortex nozzle 205 and/or separating nozzle 200, until a suction sucks the fiber ribbon end 140 into a suction section 260 of a cavity 240 of the vortex nozzle 205.

This can lead to a separation of the fiber ribbon end 140. This can result in a new

Fiber band end 140a can be formed, wherein a fiber band remainder 131 in particular in the

Cavity 240 remains and can be drained through it.

A severing 520 of a fiber band end 140 is carried out in particular by a suction in the

Cavity 240 draws a part of a fiber ribbon end 140 into the cavity 240, while the pickup 110 can be moved further away from the vortex nozzle 205 in a particularly horizontal position. The fiber ribbon 135 is thereby in an area of the fiber ribbon end 140 -32-

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P/MNU504418 06.06.2023 separated. This allows a new fiber ribbon end 140a to be formed, as shown in Fig. 11C. A fiber ribbon residue 131 can remain in the cavity 240. This

The fiber ribbon residue 131 can be disposed of in particular via a pipe system 450, which is connected in a communicating manner to the cavity 240. A waste pipe 250 can also be formed. As described with reference to Fig. 9, a suction device 920 can also be used both for the disposal of the fiber ribbon residue 131 and for the application of a

negative pressure to create suction.

In Fig. 11D, a method step of sharpening 530 is shown as an exemplary structural

The feeder 110 can be moved back towards the preparation device 201 in order to introduce the (new) fiber band end 140a into the cavity 240 by the suction through the suction section 260 of the vortex nozzle 205 (see Fig. 4). By means of a

Pressure fluid flow vortex in the vortex nozzle 205, as described elsewhere, the

Sliver end 140 is sharpened to a sharpened sliver end 140b.

In Fig. 11E, a method step of removing the pointed fiber ribbon end 140b is shown as an exemplary structural embodiment. The feeder 110 can be moved away from the preparation device 201 in order to remove the pointed fiber ribbon end 140b from the cavity 240. In particular, the feeder 300 can be moved in front of the pointed fiber ribbon end 140b in order to draw the pointed

A rotation mechanism 480 can move the inserter 300, as described in Fig. 11F, when transferring a fiber band 135 to a receiving device 460. The inserter 300 with its suction section 310 can be designed to be smaller in diameter than the suction section 310 of the receiver 110, which can save installation space.

Fig. 11F shows a feeder 300 arranged in a transfer position. A rotation mechanism 480 can be formed by an assembly 1140, which is attached to

Joints 1130 can perform a rotation of approximately 180°. A rotation between 100° and 200°, in particular between 150° and 190°, can take place. The

Insert 300 can be arranged on the assembly 1140 via a joint 1155 on the assembly 1140 in order to also move the insert 300. It can be provided that the insert 300 can be moved in a coordinated manner with the assembly 1140. This enables a coordinated

Movement around the angles and/or angle ranges described above can take place. -33-

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P/MNU504418 06.06.2023 It can also be provided in embodiments that each of the two devices can be moved by the respective angles and/or angular ranges.

The insert 300 is connected in particular to a suction line 1150. This allows a suction flow to take place at a suction section 310 of the insert 300, whereby a

Transfer of the fiber band end 140 into the feeder 300 is possible, as described elsewhere.

In Fig. 11F, in particular, threading of the fiber band 135 from a can 630, here designed as a rectangular can, is shown. After the fiber band 135 has been taken over from the receiver 110 by the inserter 300, the fiber band 135 can be fed into a

receiving device 460, which forms a fiber band guide 446 in a pre-compressor 445.

“Can” refers in particular to optional features of the invention. Accordingly, there are also further developments and/or embodiments of the invention which additionally or alternatively have the respective feature or features.

From the combinations of features disclosed here, isolated

Characteristics are selected and, dissolving any structural and/or functional connection between the characteristics, in combination with other

features to delimit the subject matter of the claim. “34 -

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P/MNU504418 06.06.2023

List of reference symbols 100 Sliver feeder 110 Pick-up 120 Suction nozzle 130 Fiber 131 Sliver residue 135 Sliver 140 Sliver end 140a newly created sliver end after separation of a previous

Sliver end 140b pointed sliver end 150 suction pipe 155 stop 160 vacuum sensor 170 rotational suspension 180 — holding orientation 185 base plate 190 pivoting direction 200 separating nozzle 201 preparation device 205 vortex nozzle 210 nozzle assembly 220 nozzle body 230 sleeve 240 cavity 250 waste pipe 260 suction section 270 screw 275 inlet opening 278 partition wall 280 pressure fluid nozzles 282 breakthrough 284 outer wall - 35.

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P/MNU504418 06.06.2023 286 Edge 288 Recess 289 Surface structuring 290 Screw 300 Insert 310 Suction section 320 Suction pipe 340 Insert holder 350 (Main) suction direction 360 Swivel arm 365 Movement 400a Holding device 400b Additional holding device 405 Locking device 410 Guide structure 415 Locking device 420 Laying structure 425 Joint 430 Anchoring structure 435 Locking device 440 Front plate 445 Pre-compressor 446 Sliver guide 448 Connecting structure 450 Pipe system 452, 454, 456 Pipe segments 460 Pre-compressor receiving section 462 — Feed section of the spinning station 465 Spinning station 480 Rotation mechanism 500 Process 510 Taking up a sliver in a can 520 Suctioning and separating the sliver / the sliver end 525 Cutting edge for shortening the figure - 36 -

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P/MNU504418 06.06.2023 530 Sharpening the fiber sliver end 540 Transferring the fiber sliver to the receiving section of the pre-compressor 600 Textile machine 610 Leg 612 Cover 614 Connecting structure 620 Work station 630 Can 632 RFID 640 Viewing recess 642 Viewing window 710 Round can edge 715 Round can surface 720 Round can 725 Round can inner surface 800 Bobbin winding 810 Cross-wound bobbin 900 Service unit 910 Filter point 915 Flow section 920 Extraction device 950 Filter 955 Insert 958 Filter holder 1100 Can area 1110 Can edge 1115 Can outer wall 1120 Can inner wall 1130 Joint 1140 Assembly 1150 Suction line 1155 Joint - 37 -

Claims (1)

AA0045LU P/MNU504418 06.06.2023 Patent claims 1. Sliver feeder (100) for a textile machine (600) comprising - at least one pick-up (110); and - at least one inserter (300); characterized in that the pick-up (110) is designed and arranged to receive a sliver (135), in particular from a can of the textile machine (600), and to transfer it to the inserter (300), wherein the inserter (300) has a take-over section and is designed and arranged to transfer the sliver (135) to a sliver guide (446), in particular to a receiving section (460) of a pre-compressor (445). 2. Sliver feeder (100) according to claim 1, characterized in that the inserter (300) is designed in such a way to take over a sliver (135), in particular a sliver end (140), in one position from the receiver (110), wherein the take-over section of the inserter (300) is designed as a suction section (310) and is oriented parallel to a holding orientation (180) of the receiver (110) in order to suck in the sliver (135), in particular the sliver end (140), in particular in such a way to take over the sliver (135) or the sliver end (140) directly. 3. Sliver feeder (100) according to one of the preceding claims, characterized in that the feeder (300) is designed to carry out a movement in order to transfer the sliver (135) to a receiving section (460), in particular of a pre-compressor (445) or a feed section (462) of a spinning station (465), wherein the sliver (135) undergoes a curvature during the transfer, in particular to the feed section of the spinning station (465), further in particular to a rotor or air spinning station. 4. Sliver feeder (100) according to one of the preceding claims, characterized in that at least one preparation device (201), in particular a vortex nozzle (205), further in particular at least one separating nozzle (200), is designed and arranged in such a way as to receive a sliver end (140) from the receiver (110) and to prepare it for transfer to the feeder (300) by “38 - AA0045LU P/MNU504418 06.06.2023 at least one of the following functions can be carried out by the preparation device (201): - a severing (520) of the fiber ribbon end (140) to form a new fiber ribbon end (140a); or - a sharpening (530) of the fiber ribbon end (140) to form a sharpened fiber ribbon (140b). 5. Sliver feeder (100) according to one of the preceding claims, characterized in that the pickup (110) and/or the inserter (300) has a vacuum sensor (160) for monitoring the sliver, wherein the vacuum sensor (160) is designed and arranged to monitor a vacuum in the pickup (110) or the inserter (300) in order to initiate a further sliver search based on a threshold value. 6. Sliver feeder (100) according to one of the preceding claims, characterized in that a holding device (400a, 400b) is provided for the sliver (135), in particular arranged on the receiving section (460) of the pre-compressor (445), wherein the holding device (400a, 400b) has at least one of the following, - a laying structure (420), in particular a laying hook or a laying eyelet: - a guide structure (410); and - an at least partially movable locking device (435), arranged and designed in such a way as to block the laying structure (420) for moving out a sliver (135) in a first state and to make the laying structure (420) accessible for inserting the sliver (135) in a second state; wherein the inserter (300) is designed to introduce the fiber band (135) into the receiving section (460), in particular into the receiving section (460) of the pre-compressor (445), via the locking device (435) for transferring the fiber band (135) from the inserter (300) to the laying structure (420). 7. Nozzle body (220) designed for a fiber ribbon feeder (100), in particular according to one of the preceding claims, wherein the nozzle body (220) comprises a vortex nozzle (205), characterized in that the vortex nozzle (205) is designed to be arranged in the nozzle body (220) or wherein the vortex nozzle (205) is arranged in the nozzle body (220) in order to remove a fiber ribbon end (140) from a receiver -39- AA0045LU P/MNU504418 06.06.2023 (110) of the sliver feeder (100) and to prepare it for transfer to a feeder (300) of the sliver feeder (100), wherein the vortex nozzle (205) has at least one pressure fluid nozzle (280) for supplying a pressure fluid flow into a cavity (240) of the vortex nozzle (205), wherein the pressure fluid nozzle (280) is designed and arranged in such a way as to generate a pressure fluid flow vortex in the cavity (240) by means of the pressure fluid flow supply, thereby enabling a separation (520) of the received sliver end (140) to form a new sliver end (140a); or a sharpening (530) of the sliver end (140) to form a sharpened sliver end (140b). 8. Service unit (900), in particular comprising a sliver feeder (100) according to one of claims 1 to 6, characterized in that a receiver (110) for receiving a section of a sliver (135) and a suction device with a suction section (260) are arranged on the service unit (900), which are assigned to one another in such a way to at least temporarily and at least partially suck a sliver section with a sliver end (140) of the sliver (135) received by the receiver (110) into the suction section (260) of the suction device, wherein a flow section (915) in the service unit (900) is arranged and designed downstream of the suction section (260) in such a way as to form a suction flow at the suction section (260) of the suction device, wherein at least one, in particular replaceable, filter (950) is arranged in the flow section (915). 9. Method (500) for taking up a sliver in a textile machine (600), characterized by the steps: - taking up (510) a section of a sliver (135) by a take-up device (110); - transferring the sliver (135) from the take-up device (110) into a feeder (300); and - transferring (540) the sliver (135) from the feeder (300) into a take-up section (460) of a pre-compressor (445). 10. Method (500) according to claim 9, characterized by the step: - a fiber band monitoring, wherein a vacuum sensor (160) monitors a vacuum in the receiver (110) and/or the inserter (300) and based on a - 40 - AA0045LU P/MNU504418 06.06.2023 threshold value initiates another fiber band search. 11. Method (500), in particular according to one of claims 9 or 10, characterized by at least one of the following steps: - severing (520) a fiber ribbon end (142) to form a new fiber ribbon end (140a); or - sharpening (530) the fiber ribbon end (142) to form a sharpened fiber ribbon end (140b). 13. Method (500) according to one of claims 9 to 11, characterized by the step: - introducing the fiber band (135) into a holding device (400a, b), in particular a holding device (400a) according to claim 6, wherein the fiber band (135) is placed on a support structure (420) of the holding device (400) and/or is inserted into a guide structure (410) of the holding device (400a) for transfer (540) to the receiving section (460) of the pre-compressor (445). 14. Textile machine (600), characterized in that it has at least one of the following devices: - a fiber sliver feeder (100) according to one of claims 1 to 6: - a nozzle body (220) according to claim 7; and - a service unit (900) according to claim 8; and/or wherein the textile machine (600) is designed and set up to carry out a method (500) according to one of claims 9 to 12. - 41 -