Fiber tape feeder and method for taking and deposing a fiber band

Abstract

The invention relates to a fiber spool feeder for a textile machine, comprising at least one pickup and at least one feeder. To improve the handling of fiber material and increase the quality of a fiber spool to be transferred to a pre-compressor, thereby increasing process stability and saving resources, the pickup is designed and arranged to receive a fiber spool, in particular from a can of the textile machine, and transfer it to the feeder. The feeder has a transfer section and is designed and arranged to transfer the fiber spool to a fiber spool guide, in particular to a receiving section of a pre-compressor.

Description

[0001] The invention relates to a sliver feeder for textile machines. The invention relates to a vortex nozzle. The invention relates to a service unit. Furthermore, the invention relates to a method for sliver take-up in a textile machine. The invention further relates to a textile machine.

[0002] Sliver feeders are common in textile machinery, particularly spinning or twisting machines. 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.

[0003] Handling fiber material is a technical challenge because, on the one hand, the fibers must be held together in order to be processed, but on the other hand, they must not be compressed too much, as this would complicate further processing. Handling many individual fibers in a fiber sliver is only possible in a complex manner at the transfer point to the spinning unit of the textile machine. This can lead to breakdowns in the textile machine, for example due to a blocked spinning unit if the fiber material is not transferred to its take-up section accordingly. Further breakdowns can occur because the fiber sliver becomes lost and has to be re-taken up. This costs time and therefore resources.

[0004] The object of the invention is therefore to improve the handling of fiber material and to increase the quality of a fiber sliver to be transferred, in particular to increase process stability and save resources.

[0005] The problem is solved by a sliver feeder having the features of claim 1. The problem is solved by a vortex nozzle having the features of claim 7. The problem is solved by a service unit having the features of claim 9. The problem is solved by a method having the features of claim 10. The problem is solved by a textile machine having the features of claim 14.

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

[0007] According to one aspect, the problem is solved by a fiber sliver feeder having the features of claim 1.

[0008] A sliver feeder can comprise 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. In particular, the inserter has a transfer section and is designed and arranged to transfer the sliver to a sliver guide, in particular to a receiving section of a pre-compressor. This can improve the handling of fiber material. Furthermore, the quality of a sliver to be transferred to a sliver guide can be increased. This makes it possible to increase process stability and thus save resources.

[0009] A section is understood to mean an area of ​​a part or section 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.

[0010] Fibers are presented in particular in the form of a fiber sliver, whereby the fiber sliver can be a material delivery state. The fibers are particularly interconnected, for example purely by mechanical friction forces within the fiber sliver, in such a way that the fiber sliver does not fall apart on its own and the fibers can be transported. The fiber sliver is particularly designed to be inserted into a textile machine. The fiber sliver can be designed to be fed to a fiber sliver guide, in particular a pre-compressor.

[0011] A sliver guide is, in particular, a structure designed and arranged to guide a sliver between a can and a spinning station. This can reduce the weight load on the sliver, for example, due to its own weight. This makes it less likely that the sliver will tear off the spinning station or even break.

[0012] The fiber sliver guide can, in particular, be a receiving section of a pre-compressor. Pre-compressors are devices of a textile machine that can increase the density in a fiber sliver. Pre-compressors can be designed to prepare the fiber sliver and the fibers transported therein in a defined manner for a textile production process such as a spinning process, wherein the spinning process takes place in particular in a spinning station of a corresponding spinning machine. The pre-compressor is designed to achieve pre-compression of the fiber sliver before the fiber material of the fiber sliver is fed to a further processing process, such as the spinning process, in which a thread is to be produced from the fiber sliver. The pre-compression can, in particular, be such that the fiber sliver is compressed in a defined manner with regard to the fiber sliver thickness as it passes through the pre-compressor.For this purpose, the pre-compressor can, in particular, have a defined tapered fiber sliver guide section running in the fiber sliver transport direction. The tapering can be continuous, in particular without edges, or discontinuous, for example, in a step-like manner.

[0013] The fiber slivers are fed in particular in so-called cans to a textile machine. A can can be a container designed to hold at least one fiber sliver. A fiber sliver end can protrude beyond an edge of a can in order to be recognized and picked up there by a pick-up. Alternatively or additionally, a pick-up can also engage in a can to pick up the fiber sliver therefrom. The fiber sliver is stored in particular in cans, which can be designed to be interchangeable. The fiber sliver can thus be removed from a can and fed to a textile machine. In order to enable the transition from the can to a fiber sliver guide, for example a pick-up section of a pre-compressor, a device can be necessary that can carry out the removal from the can.

[0014] A pick-up device is, in particular, a device that can pick up a fiber sliver from the edge of a can and / or from a can. The pick-up can be performed, for example, by a mechanical or electromechanical gripping device. Alternatively, according to a preferred embodiment, a suction device can be provided, as described elsewhere. The pick-up device particularly performs the function of picking up the fiber sliver end from the can.

[0015] Embodiments can be provided in which the pick-up also functions as a feeder. In this case, the pick-up can not only take up the fiber sliver, but can also feed it into the fiber sliver guide, such as the take-up section of the pre-compressor, and thus be designed as a feeder. This allows for a simpler design, since only one assembly can be provided.

[0016] A feeder is in particular a device (of this type) which is in particular arranged and designed to feed a fiber sliver into a feed section of a spinning station, wherein the feeder is at least arranged and designed to transfer the fiber sliver to a fiber sliver guide. The feeder can be provided in a unit with a receiver, as described above. Alternatively (or additionally for different spinning stations), the feeder can form a separate assembly, which can in particular be designed such that it has a transfer section which can be positioned relative to the receiver in such a way as to enable transfer from the receiver. The feeder and the receiver can face each other in a transfer position such that the transfer can take place in particular in a line.In other words, the inserter can be positioned opposite the take-up unit to enable transfer / take-over of the fiber sliver. Furthermore, the inserter is particularly designed to move the fiber sliver close to the feed section of a spinning station to enable transfer to the spinning station. The feed section of the spinning station, in particular a fiber sliver feed for feeding the fiber sliver to a downstream spinning unit that spins the thread, and the take-up section of the inserter can be positioned opposite each other. This allows for easy transfer and reduces the likelihood of the fiber sliver being lost (i.e., dropped) during one of the transfers.

[0017] 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.

[0018] According to one aspect, the inserter can be configured to receive the fiber sliver, in particular the fiber sliver end, from the receiver in one position. The receiving section of the inserter can be configured as a suction section of the inserter, which is oriented, in particular, parallel to a holding orientation of the receiver in order to suck in the fiber sliver, in particular the fiber sliver end, in particular in such a way as to directly receive the fiber sliver or the fiber sliver end. This reduces the likelihood of the fiber sliver being dropped. This, in particular, increases process stability and thus conserves resources.

[0019] In this and other preferred embodiments, a receiving section can be designed as a suction section. The suction section is formed, in particular, by the opening of a suction tube, with the tube forming a main suction direction that is particularly perpendicular to the opening surface. This direction can also correspond to a suction flow (in the physical-mathematical sense) or coincide with it.

[0020] 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 previously described main suction direction. This main suction direction is particularly parallel to a transfer direction from the receiver to the inserter in a transfer arrangement of the two devices. Both directions can, in particular, coincide on a common line.

[0021] The expression "in a position from the receiver" can refer in particular to a takeover position of the inserter relative to the receiver. Alternatively, preferred embodiments can be provided in which the receiver moves towards the inserter to facilitate a transfer of the fiber sliver, in particular the fiber sliver end, to the inserter. In one position of the receiver, the inserter also assumes a position. In another position of the inserter, it can be provided that the inserter is located in proximity to the receiving section of the pre-compressor to enable a corresponding transfer of the fiber 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 a movement of the inserter and / or the receiver, as described elsewhere.The pickup can also alternatively or additionally perform a movement in order to change from a pickup position (one position) to a transfer position (another position) and vice versa.

[0022] The fiber sliver, especially the fiber sliver end, can be picked up directly. The "direct" refers to the possibility of the fiber sliver or the fiber sliver end being in contact with both the pick-up device and the feeder for a certain period of time. Therefore, it does not need to be set down in between for re-pickup by the feeder. Rather, the transfer takes place immediately, in particular without any intermediate stages (and / or steps).

[0023] According to one aspect, the inserter can be designed to perform a movement (as already mentioned above) in order to transfer the fiber sliver to a feed section of a spinning station and / or a take-up section of a pre-compressor. The inserter and feed section of the spinning station can be oriented such that the fiber sliver is curved during the transfer. This enables, in particular, a reproducible transfer. This also enables, in particular, an easy-to-travel path for the inserter between a (first) position of the inserter relative to the take-up and another (second) position of the inserter relative to the spinning station. The transfer can take place, in particular, to the feed section of a spinning station, furthermore, in particular, to a rotor or air spinning station.

[0024] The movement can be a rotational movement of a feeder; alternatively or additionally, an entire assembly can rotate around at least one axis. This allows the feeder to switch between the previously described positions (also referred to as positions), in which it receives the sliver, in particular the sliver end, from the pick-up in one position (also referred to as positioning), and transfers it to a receiving section of the pre-compressor and / or the feed section of the spinning station in another position.

[0025] Here and elsewhere, the terms "takeover" and "transfer" are used particularly relative to the assembly just described. For example, the transfer or delivery from the receiver to the inserter is simultaneously understood as the transfer or pickup of the inserter from the receiver. Thus, the assemblies and devices can also assume the various roles of receiver and dispenser, or as transferrer and receiver.

[0026] A curvature of the fiber sliver is particularly designed such that the fiber sliver is oriented in a (first) orientation in the suction section of the insert, while the fiber sliver is oriented in a different (second) orientation in the feed section of the spinning station. The two orientations of the fiber sliver can be mirrored to one another about an axis, in particular a vertical axis. The fiber sliver curves through the mirror plane, in particular during the transition from one orientation to the other. This allows a fixed and controlled transition to take place. The feed section of the spinning station is particularly designed as a fiber 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 a pair of input rollers of a drafting system of an air-jet spinning machine.

[0027] According to one aspect, at least one preparation device, in particular a swirl nozzle, further in particular at least one separating nozzle, can be designed and arranged, in particular in such a way as to receive a fiber sliver end from the receiver and prepare it for transfer to the inserter. This occurs in particular in that preferably at least one of the following functions, cutting the fiber sliver end and / or sharpening the fiber sliver end, is carried out by the preparation device. Sharpening is understood to mean, analogous to a pencil, a reduction in the fiber sliver thickness up to the free end of the fiber sliver, in this case in particular by compressing the fibers and / or reducing / thinning the number of fibers.In other words, the fiber sliver thickness increases continuously from the free end of the fiber sliver in the direction of extension of the fiber sliver until the fiber sliver thickness of the tapered area corresponds to and merges into the immediately adjacent section of the fiber sliver. This allows the fiber sliver to be prepared for easier fiber handling during transfers / takeovers, thereby increasing process reliability and optimizing the transition.

[0028] There may be preferred embodiments that combine the aforementioned aspects and embodiments with a preparation device as described here. In other preferred embodiments, such as with other pick-ups or other inserters, the preparation device as described here can also be used. The preparation device serves, in particular, to receive a fiber sliver end from the pick-up and prepare it for transfer to the inserter (or for transfer from the inserter to the spinning station).This allows for preparation of a sliver end to be achieved, regardless of the structural-functional design of the feeder, the take-up device, or the feed section of the spinning station and / or the take-up section of the sliver guide, in particular the pre-compressor, described here, and their relative positions in various positions as described here, in order to enable a stable transfer and to reduce the likelihood of any damage to the sliver or loss of the sliver. This makes it possible to increase process reliability and reduce the need for resources.

[0029] A sliver end is in particular a free end of the sliver with which it can be introduced 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.

[0030] According to a preferred embodiment, a separating nozzle can function as a preparation device. In particular, it can be provided that a fiber sliver end is severed to obtain a new, "fresh" fiber sliver end. This allows damaged fibers to be removed to reduce the risk of breakage in a subsequent thread production process. The separation can be carried out, in particular, by applying a vacuum. A section behind the free end of the fiber sliver is pulled apart in such a way that the fiber sliver end is severed from the fiber sliver and removed. However, the separation can also include cutting the fiber sliver, in particular by means of a cutting tool.

[0031] Alternatively or additionally, a sharpening of the fiber sliver end can be provided, in which the fibers converge in a tapered manner towards the end, and the diameter of the fiber sliver decreases, in particular, towards the fiber sliver end. For this purpose, pressurized fluid nozzles can be provided within the preparation device, which, by means of a jet of pressurized fluid, generate a conical compression of the fibers towards the fiber sliver end. This allows the described sharpened fiber sliver end to be formed.

[0032] According to a preferred aspect, the pickup can have a vacuum sensor, which is particularly designed and arranged to enable fiber sliver monitoring. The vacuum sensor can be designed and arranged to monitor the negative pressure prevailing in the pickup in order to initiate a further fiber sliver search based on a threshold value if necessary. This allows both the successful transfer of the fiber sliver to the feeder and the loss of the fiber sliver to be detected.

[0033] The sliver monitoring can in particular be used to determine whether a sliver has been picked up accordingly. In this case, it can be provided that a defined series of work stations can be traversed by a sliver feeder of the type described here in a textile machine. This can be made possible because the described sliver feeder is arranged on a service unit, as described elsewhere. The work stations can each have a can, a feed section of a spinning station associated with the respective work station and / or a take-up section of a pre-compressor. The sliver feeder can determine whether the sliver has been picked up via the pick-up or a different monitoring device such as a sensor or a camera.If several unsuccessful attempts are made at a workstation (the number can be predefined or can also be configured), the sliver feeder can move to the next workstation and ignore that one, mark it as unresolved, or abort its move and issue a warning to call an operator. The described actions can also be performed if sliver loss occurs repeatedly (again, the number of repetitions can be configured or predefined).

[0034] Alternatively, or additionally, the feeder can preferably have a vacuum sensor. This allows the successful transfer of the fiber sliver to the feeder as well as the detection of a loss of the fiber sliver.

[0035] During fiber sliver monitoring, the vacuum sensor can monitor the vacuum in such a way as to initiate a further fiber sliver search based on a threshold value. The threshold value can be defined as a number of unsuccessful attempts. Alternatively or additionally, preferably, the threshold value can 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.

[0036] According to a preferred aspect, a holding device for the fiber sliver can be provided, in particular arranged on the receiving section of the fiber sliver guide, in particular of the pre-compressor, or on a support frame of the work station, wherein the holding device is more preferably arranged upstream of the receiving section in the fiber sliver transport direction. In this case, the holding device has in particular at least one of the following structures: A laying structure, in particular a laying hook or a laying eyelet, can be provided to support the fiber sliver against its own weight in order to thereby reduce the tension along the direction of gravity on the fiber sliver, in particular on the fibers in the feed section of the spinning station and / or the receiving section of the fiber sliver guide, in particular of the pre-compressor. This can reduce the probability of fiber damage. Furthermore, the probability of the fiber sliver tearing can be reduced.Furthermore, it is possible for the fiber sliver to be 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, any movement of the fiber sliver away from the machine, in particular in a lateral direction (i.e., toward the longitudinal side of the machine). This can also improve the guidance of the fiber sliver into the feed section of the spinning station and / or into the receiving section of the fiber sliver guide, in particular of the pre-compressor.

[0037] A guide structure can be provided which is in particular designed and arranged to enable lateral guidance at least in the direction of one side of the fiber sliver, in particular in the direction of one side of the fiber sliver in the longitudinal direction of the textile machine (i.e. towards a front-end or back-end side of a textile machine or in the direction of an adjacent work station). In other words, the pivoting out of the fiber sliver parallel to the longitudinal side of the textile machine can be limited. This can reduce lateral tensile forces, which improves the guidance of the fiber sliver and can reduce the likelihood of fiber damage. The guide structure can be a component of the fiber sliver guide, in particular of the pre-compressor. The guide structure is preferably designed and arranged to transfer the fiber sliver into the receiving section of the pre-compressor and at the same time to limit it laterally.According to a preferred embodiment, the guide structure can at least partially or completely laterally delimit the receiving section. Accordingly, the guide structure is arranged parallel to the fiber sliver guide direction of the receiving section, 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 support element, for example in the form of a front plate or cover plate.

[0038] Furthermore, an anchoring structure can preferably be provided between the receiving section and the support structure. The anchoring structure can form a boundary for the fiber sliver parallel to the long side of the textile machine. In this case, the anchoring structure preferably forms, with the receiving section and the support structure, a receiving area that is at least partially bounded by them, in particular a U- or C-shaped receiving area, into which the fiber sliver can be introduced or fed by the inserter via the open side, as well as removed. Particularly preferably, the guide structure connects the receiving section to 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 supported by it, wherein the support structure is arranged on the anchoring structure and supported by it and is thereby anchored.The structures can be connected to one another by form-fitting, force-fitting, or material-fitting means. The anchoring structure is particularly preferably designed as a rod-shaped support element.

[0039] According to a preferred embodiment, an at least partially movable locking structure (also referred to as a locking device) can be arranged and configured in particular on the anchoring structure and / or the fiber sliver guide, interacting with the lay-up structure, in such a way that, in a first state, movement of the fiber sliver out of the region of the lay-up structure is blocked, and in a second state, the lay-up structure is accessible for inserting the fiber sliver. The locking structure can preferably be configured as a locking element such as an eyelet and / or a hook. Alternatively, the locking structure is preferably configured as a rod-shaped locking element. The locking structure can be movably mounted on at least one joint. In particular, the locking structure can be movably mounted on the joint in such a way that the movement can occur in a direction parallel and / or antiparallel to a direction of movement of the insert.The direction of movement can have at least one vector component, which can be directed toward 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 form a component of the support structure.

[0040] In this or other preferred embodiments, the locking structure can be moved into an open position by means of interaction, for example with the insert. 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 is in particular arranged and designed such that it interacts with the joint for the return operation. The return spring can more preferably be arranged in the joint. The locked position can be the home position. This eliminates the need for active monitoring of the position during operation, which simplifies the design.

[0041] To achieve the described advantages and effects, the fiber sliver, in particular the fiber sliver end, can be inserted into the receiving area of ​​the lay-up structure for transfer from the feeder to the receiving section, in particular the receiving section of the pre-compressor. The expression "for transfer from the feeder to the receiving section (of the pre-compressor)" refers to the possibility of threading into the receiving area of ​​the lay-up structure (in terms of time) before the transfer to the receiving section (of the pre-compressor) or, alternatively, after the transfer to the receiving section (of the pre-compressor).

[0042] According to a preferred embodiment, the anchoring structure, the support structure, the locking structure, and the receiving section are designed and arranged such that they circumferentially delimit the receiving area for the fiber sliver in a circumferential arrangement direction of the structures and the receiving section by at least 75%, and more preferably circumferentially in a range of 95% to 100% inclusive. The inserter is arranged and designed to feed the fiber sliver to the receiving area via interaction with the movable locking structure, so that the fiber sliver can be transferred to the support structure.

[0043] 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 to be referred to as the sliver travel path) between the can (also to be referred to as the spinning can) and the sliver guide, in particular on a frame of the work station or the textile machine. A work station here can be the location at which a spinning station can be arranged. Bobbin production for winding a spun thread onto a bobbin, in particular a cheese, can also take place in one work station. More preferably, the sliver guide with the holding device can be formed from a single component and arranged in the sliver path between the can and the spinning device. A single component is understood to mean a material-to-material joint made of the same material or, alternatively, preferably, of different materials.understood as a trained component.

[0044] The receiving section of the sliver guide, in particular of the pre-compressor, can be an area that can be located directly / immediately in front of the section of the sliver guide that guides the sliver in contact. The sliver can be inserted or inserted into or onto the receiving section.

[0045] According to a further independent aspect, the object of the present invention is achieved by a nozzle body having a swirl nozzle, wherein the nozzle body 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 so as to be replaceable without causing any damage. Alternatively, the swirl nozzle can be arranged and fastened 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 to form a new sliver end or sharpening the sliver end to form a sharpened sliver end, as described above by way of example.This allows the advantages and effects described, in particular, with regard to the sliver feeder to be realized. Reference is made here, in particular, to the explanations provided elsewhere. This allows the sliver or sliver end to be prepared, in particular, to facilitate handling of the sliver or sliver end during transfers / takeovers, thereby increasing process reliability and optimizing the transition.

[0046] With regard to cutting and / or sharpening, reference is made to the explanations provided elsewhere. These also apply accordingly to the vortex nozzle described here. Thus, the cutting nozzle described elsewhere can be a vortex nozzle.

[0047] The vortex nozzle has a cavity in which a vortex can be formed. The vortex can be formed in particular such that at least one set of vectors of a vortex vector field has a component that is parallel to a component of the cavity wall in a circumferential direction. In other words, a vortex is formed that is at least partially parallel to the cavity wall. The cavity wall is formed in particular with a circular and / or oval cross-section.

[0048] The vortex nozzle can be designed in such a way that it is replaceable. In particular, the vortex nozzle can be designed so that it can be removed from or inserted into a nozzle body. This allows the vortex nozzle to be easily adapted to the fiber sliver material in terms of its design, and in particular in its ability to form a vortex.

[0049] According to one aspect, the vortex nozzle comprises a pressurized fluid nozzle. The pressurized fluid nozzle is designed and arranged such that a pressurized fluid flow can be introduced into the cavity of the vortex nozzle to generate a pressurized fluid flow vortex in the cavity. This allows the fiber sliver end to be prepared in a defined manner to facilitate handling of the fiber sliver or the fiber sliver end during transfers / takeovers, thereby increasing process reliability and optimizing the transition.

[0050] The pressure fluid nozzle can be connected to at least one pressure fluid guide from a pressure fluid source in order to subject the pressure fluid nozzle to a pressure fluid flow. The pressure fluid nozzle is in particular designed and arranged to introduce a pressure fluid flow with at least one vector component parallel to a cavity inner wall along a circumference. The pressure fluid nozzle can be arranged in a direction that has at least one vector component that points in a tangential direction to the circumferential direction of the cavity inner wall. The direction in which the pressure fluid nozzle intersects the cavity inner wall in order to inject the pressure fluid flow into the cavity can be at an angle to the tangential direction. Compressed air, dry air and / or nitrogen, as well as mixtures thereof, can be used as the pressure fluid.

[0051] The direction in which the pressure fluid nozzle intersects the cavity inner wall in order to introduce, in particular to blow in, 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.

[0052] The object is further achieved according to an independent aspect, in particular by a service unit. A pickup and a suction device with a suction section can be arranged on the service unit, which are associated with one another in such a way as to at least temporarily and at least partially suck a section of a fiber sliver with a fiber sliver end of a fiber sliver held by the pickup into the suction section of the suction device. The section of the fiber sliver to be sucked in can preferably be the fiber sliver end. A flow section in the service unit can be arranged downstream of the suction section and configured 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, with the service unit and the filter preferably being configured to arrange the filter so that it can be removed from the flow section.This allows a separate suction device to be provided for filtering the sucked-in pressurised fluid flow, in particular an air flow, particularly after the fibre sliver end has been severed, with fibre residues remaining on the filter. The suction device is thus protected from fibre residues, thus improving the service life of the suction device. The service unit and / or the suction device can be equipped with a monitoring unit, in particular a pressurised fluid sensor, for monitoring the pressurised 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. In the event of a deviation from a threshold value, it is possible to infer that the filter is clogged with fibre material, so that in the event of a defined clogging the filter can be cleaned, in particular by removal.For this purpose, the monitoring unit can preferably be communicatively connected to an alarm unit in order to issue an alarm signal, in particular a visual, optical, or haptic signal, in the event of a deviation from the threshold value. For example, the alarm unit can be visibly arranged on the service unit and configured to issue a visual alarm signal. Alternatively or additionally, the alarm unit can preferably be integrated into a mobile device such as a smartwatch, a tablet, a laptop, or the like, or arranged on it and configured to issue the alarm signal visually, haptically, and / or acoustically.

[0053] The service unit can, in the usual way, be a unit that can be moved along the workstations of the textile machine and is suspended from a support frame of the textile machine. The service unit preferably 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 traveling along the workstations and ensures reliable guidance of the service unit. In particular, the roller unit has a roller that is arranged and designed to be able to be rolled along a roller guide on the support frame of the textile machine. The roller is connected to a frame of the service unit via a roller holder.Preferably, the roller unit is arranged in a lower area of ​​the service unit on the side of the service unit facing the support frame. This allows the distance between the roller holder and the roller to be kept small, allowing the roller unit to be designed with reduced installation space.

[0054] Alternatively, the service unit can be a robot unit - such as a robot vehicle - such as a so-called AGV (Automated Guided Vehicle) or AMR (Autonomous Mobile Robot), which can move independently or autonomously in a known manner within a system in which the textile machine is located.

[0055] According to a preferred embodiment, the sliver feeder, in particular as described elsewhere, can be arranged on the service unit. The sliver feeder can in particular be arranged in a lower region (lower section) of the service unit, provided that the service unit is the service unit suspended from the support frame of the textile machine and movable along the textile machine. In this case, the sliver feeder can in particular be arranged below the service unit. This allows the sliver feeder to be carried along the textile machine by means of the service unit. The pick-up can be moved from one can to another can in order to automatically remove a sliver from a can or from an edge region of the can and transfer it to the feeder for insertion, as described elsewhere.By arranging the sliver feeder below the service unit, the pick-up can be brought closer to the cans arranged or positioned below the spinning stations in order to facilitate the pick-up of the sliver.

[0056] According to a preferred embodiment, a readout unit for reading a memory and / or a code is arranged on the service unit or the sliver feeder. The readout unit is in particular arranged and designed to read a memory attached to a can, such as an RFID or a chip or code, such as a barcode and / or barcode, and to provide the readout information to an evaluation unit for evaluation. The stored and readable information can be information about the sliver material deposited in the can, which has been assigned to a workstation for processing. Reading this information by the readout unit and providing it to the evaluation unit enables the checking of whether the workstation has been assigned the correct sliver material for the production of a predetermined thread of defined quality, for which a specific sliver material is required.The evaluation unit can preferably be communicatively connected to a control and / or regulating unit which controls the sliver feeder in a defined manner. Thus, upon evaluation that an incorrect or incorrect sliver material has been assigned to the work station for the production of the predetermined thread, the evaluation unit can provide corresponding information to the control and / or regulating unit. The control and / or regulating unit is furthermore particularly designed 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 processing an incorrect or incorrect fiber material for the production of the predetermined thread, thereby minimizing waste and defective production.

[0057] The problem is also solved according to an independent aspect by a method for fiber sliver take-up in a textile machine. The method comprises, in particular, the step of taking up a fiber sliver section by a take-up device. Alternatively or additionally, the method comprises the step of transferring a fiber sliver, in particular a fiber sliver end, from the take-up device to a feeder. Alternatively or additionally, the method comprises the step of transferring the fiber sliver, in particular the fiber sliver end, from the feeder into a take-up section, in particular a pre-compressor and / or into a feed section of the spinning station.

[0058] With regard to the picking up of a sliver section by a pick-up, the definitions, technical effects, and advantages previously made with regard to the device continue to apply accordingly. In particular, the picking up of the sliver section by the pick-up occurs in such a way that the pick-up picks up a sliver section that is different from a free sliver end in order to be able to transfer the free sliver end section. Alternatively, the pick-up can preferably pick up the sliver end. The method can thus be described accordingly by the features of the device. The same also applies to the description of the device by the features, effects, and advantages presented with regard to the method.This also applies accordingly to the transfer of a sliver from the receiver to a feeder and to the transfer of the sliver from the feeder to a feed section of a spinning station and / or a receiving section of a pre-compressor.

[0059] According to one embodiment of the method, fiber sliver monitoring can be provided. A vacuum sensor can monitor a negative pressure and initiate a further fiber sliver search based on a threshold value.

[0060] With regard to "sliver monitoring," as well as the monitoring of a negative pressure and initiating a further sliver search based on a threshold value, the definitions outlined with regard to the device, the effects described, and the associated realizable advantages also apply to the method. Both categories can be described by the definitions, effects, and advantages of the other category. The same applies to the textile machine system.

[0061] Furthermore, an embodiment of a described method can provide for separating, in particular cutting, the fiber sliver end. Alternatively or additionally, the fiber sliver end can be sharpened to form a sharpened fiber sliver end.

[0062] With regard to "separating, in particular cutting, the fiber sliver end" as well as "pointing the fiber sliver end," the definitions given with regard to the device, the effects described, and the associated realizable advantages also apply accordingly to the process. Both categories can be described using the definitions, effects, and advantages of the other category.

[0063] According to an independent aspect, a method can be provided in which, in particular, the step of separating the fiber sliver end (severing a fiber sliver end to create a new fiber sliver end), in particular cutting the fiber sliver end, is provided. Alternatively or additionally, sharpening the fiber sliver end to form a sharpened fiber sliver end can be provided. As a result, the advantages and effects, as described elsewhere in relation to the embodiments that implement corresponding method steps, can also be transferred to other methods for fiber sliver application.

[0064] According to one embodiment of the described method, the step of inserting the fiber sliver into a holding device can be provided. A fiber sliver can be placed on a support structure of the holding device for transfer to the feed section of the spinning station and / or to the receiving section of the pre-compressor. Alternatively or additionally, the fiber sliver can be inserted into a guide structure of the holding device.

[0065] In this case, the definitions, effects, advantages and features, in particular with regard to "insertion into a holding device", the holding device, the "transfer to the feed section of the spinning station and / or receiving section of the pre-compressor" and the laying structure, as well as the guide structure of the holding device, as explained elsewhere, continue to apply accordingly.

[0066] 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 that is designed and configured to carry out one of the methods described elsewhere.

[0067] The textile machine can, in particular, be a rotor or air-jet spinning machine, for which the sliver feeder can be designed. In the rotor or air-jet spinning machine, the sliver is transferred 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-jet spinning machine. The sliver feed has, in particular, a controllable, driven roller for the controlled feeding of the sliver. A pre-compressor, as described elsewhere, can be located upstream of the roller. The roller can, for example, be a feed roller, which in the rotor spinning machine is responsible for feeding the sliver to the spinning device.Alternatively, the roller can be an input roller of a pair of input rollers of a drafting system, which in the air-jet spinning machine is responsible for feeding the fiber sliver to the spinning device. A pre-compressor, as described elsewhere, can (but does not have to) be located upstream of the input roller pair.

[0068] 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 is a schematic representation of a detail view of a spinning machine; Fig. 1B is a schematic representation of a work station of a spinning machine; Fig. 2 is a schematic representation of a sliver feeder; Fig. 3A is a schematic representation of a separation nozzle; Fig. 3B is a schematic representation of a separation nozzle with a sliver end; Fig. 3C is a schematic representation of a separation nozzle with a sliver; Fig. 4 is a schematic representation of a separation nozzle designed as a swirl nozzle; Fig. 5 is a schematic representation of a view of a receiver; Fig. 6 is a schematic representation of a holding device on a pre-compressor; Fig. 7 is a schematic representation of a round can below a holding device on a pre-compressor;8A shows a schematic side view of a holding device with an at least partially movable locking device on a pre-compressor; Fig. 8B shows a schematic front view of a holding device with an at least partially movable locking device on a pre-compressor; Fig. 9 shows a schematic view of a service unit; Fig. 10 shows a schematic representation of a method; Fig. 11A shows a structural representation of a method step for taking up a fiber sliver by a pickup; Fig. 11B shows a structural representation of a method step for introducing a fiber sliver into a suction point for separation; Fig. 11C shows a structural representation of a method step for separation; Fig. 11D shows a structural representation of a method step for introducing a fiber sliver into a suction point for sharpening; Fig. 11E shows a structural representation of a method step for sharpening; and Fig.11Detailed structural representation of a process step of inserting a sliver into a fiber guide of a pre-compressor.

[0069] The same reference symbols are used for elements and structures with the same function and / or similarity.

[0070] Fig. 1A shows a schematic representation of a detail view of a spinning machine as an 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 spin a thread (also referred to as yarn). A work station 620 is shown in a schematic representation in a detailed view in Fig. 1B shown.

[0071] In textile machines 600, a fiber sliver 135 can be fed in order to spin the thread in a spinning station 465 of the work station 620. Such textile machines 600 can therefore be so-called spinning machines. Rotor spinning machines, as shown here as an example, can be provided as spinning machines. Alternatively, an air-jet spinning machine (not shown) can also be provided. The fiber sliver 135 can be transferred to the textile machine 600, which can be fully automatic or at least semi-automatic. For this purpose, the fiber sliver 135 can be delivered in a so-called can 630, can be fed in a can 630, or an empty can 630 can be exchanged for a filled can 630 in order to deliver the fiber sliver 135 to a work station 620. Textile machines 600 can also consist of a whole series of (homogeneous) work stations 620, as shown in Fig. 1A shown and described accordingly, in which a fiber band 135 can be repeatedly fed in order to maintain the spinning process.

[0072] To enable the transfer from the can 630 to a receiving section 460 of a pre-compressor 445, a sliver feeder 100 can be used (per workstation) for a textile machine 600. 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 workstations, for example, to insert a sliver 135 into a spinning station 465. A sliver feeder 100 is shown schematically in detail in Fig. 2 shown. A fiber sliver feeder 100 has, in particular, at least one pickup 110 and at least one inserter 300.

[0073] An exemplary embodiment of an insert 300 is shown in its function in the Fig. 11F shown and also described in this regard.

[0074] The receiver 110 serves, in particular, to receive the fiber sliver 135 from a can 630 in order to transfer this fiber sliver 135 to the feeder 300. The feeder 300 has, in particular, a transfer section designed and arranged to transfer the fiber sliver 135 to a receiving section 460 of a pre-compressor 445.

[0075] The insert 300 can be further designed in such a way that it receives a fiber band 135, in particular the fiber band end 140, from the receiver 110 in one position. Fig. 2 The insert 300 shown is in particular constructed and arranged such that the receiving section of the insert 300 is designed as a suction section 310. The suction section 310 is arranged with its suction direction 350 in particular parallel to a holding orientation 180 (see also Fig. 5 ) of the pickup 110. This allows the fiber sliver 135, in particular the fiber sliver end 140, to be sucked in. This can be done in particular such that the fiber sliver 135 or the fiber sliver end 140 can be taken over directly by the feeder 300 without, for example, having to be deposited via an intermediate stage or intermediate structure.

[0076] In order to be able to apply a negative pressure to the suction section 310, pipe systems 450 can be provided, which in particular have a plurality of segments 452, 454, 456. The suction pipe 320 of the insert 300 (in particular independently of the pipe systems 450) can be curved, in particular having a bend of largely 90°, in order to lead from a supply area, in which it is connected to an insert holder 340, into the largely parallel orientation between the suction direction 350 and the holding orientation 180 of the receiver 110. The suction nozzle 120 of the receiver 110 can have a suction direction that deviates from a parallel orientation (not depictable here due to the perspective; the suction direction here is in the plane of the page).In this case, however, the sucked-in fiber band 135, which the pickup 110 may have picked up, can be transferred into the holding orientation 180 in order to be sucked in by the inserter 300 in particular in this direction (and thus parallel to the suction direction 350 of the inserter 300).

[0077] 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 into the vicinity of the holding orientation 180, in particular with the greatest possible overlap, in order to take over a fiber sliver 135 or a fiber sliver end 140. After taking over the fiber sliver 135 or the fiber sliver end 140, the insert 300 can be guided by a rotational movement into the vicinity of a receiving section 460, in particular a receiving section 460 of a pre-compressor 445. In this case, the fiber sliver 135 or the fiber 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. In this preferred embodiment, the feed section 462 is a feed roller.The inserter 300 is designed to introduce and transfer the fiber sliver end 140 into the access area of ​​the feed section 462, in particular the feed roller, so that after transfer of the fiber sliver end 140 from the inserter 300 to the feed section 462, in particular the feed roller, the fiber sliver end 140 is transported further by the feed roller in the direction of the spinning device.

[0078] The pre-compressor 445 can, in particular, prepare a fiber sliver 135 for intake into the feed section 462 of the spinning station 465. A take-up direction of the feed section 462 of the spinning station 465 can, in particular, be antiparallel to an orientation direction of the fiber sliver 135 or the fiber sliver end 140. For this reason, in particular, the fiber sliver 135 or the fiber sliver end 140 folds over 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 transfer the fiber sliver 135, in particular the fiber sliver 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 fiber sliver 135, in particular the fiber sliver end 140, undergoes a curvature during transfer to the feed section 462 of the spinning station 465.

[0079] The fiber ribbon end 140 is in Fig. 3C This is, in particular in contrast to a "normal fiber sliver end" 140, a particularly conically tapered, post-compacted fiber bundle, referred to as a pointed fiber sliver end 140b. The fiber sliver end 140 can, for example, after a separation step, as in Fig. 3B As shown, "fiber out" (widen conically). In particular, the diameter and / or radius at the fiber sliver end 140 is larger (or at least the same size) compared to the average fiber sliver diameter, or compared to the fiber sliver diameter at a suction nozzle 120 of the pickup 110. This could make it more difficult to pick up the fiber sliver end 140 into a feeder 300.

[0080] In order to better prepare the fiber sliver 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 is shown. A separating nozzle 200 is particularly designed and arranged to (temporarily) 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. Thus, in particular, no complete transfer takes place to prepare the fiber sliver end 140 for transfer to the feeder 300.

[0081] The preparation can comprise at least one of the following functions (also to be understood as steps of an associated method), which can be performed by the preparation device 201: The previous fiber sliver end 140 can be severed, in particular cut off or separated from the fiber sliver 135 by the suction of the suction device of the inserter 300. This can result in the sliver being severed or cut in such a way as to form a new fiber sliver end 140a. This allows contaminants or damage to be removed, and a clean, undamaged fiber sliver end 140a can be presented for the subsequent process steps.

[0082] An exemplary separating nozzle 200 is shown in a schematic representation in a detailed view 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 insulated vortex nozzle 205, which can be inserted into a nozzle body 220 as a separating nozzle 200, is shown. A sleeve 230 is attached to the nozzle body 220, for example, by means of screws 270. The vortex nozzle 205 can have a cavity 240 for receiving a fiber sliver end 140.

[0083] In the cavity 240, as in Fig. 4 As shown, pressure fluid nozzles 280 can be formed, which can be connected to a pressure fluid source (not shown) via an opening 282 in the outer wall 284 of the nozzle body 220. 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 to introduce the pressure fluid or the pressure fluid stream at an angle relative to the inner wall of the cavity 240. In this case, in particular, a vortex of pressure fluid is formed, which can move around the fiber sliver end 140 in order to sharpen or sever it, as described elsewhere.

[0084] The nozzle body 220 can, in particular, have a suction section 260. This suction section can form a laminar flow in the cavity 240 in order to suck the fiber sliver end 140 into the cavity 240. An edge 286 can be beveled in order to divert a laminar flow from the environment with as little turbulence as possible or to divert a swirl flow into the environment with as little turbulence 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 arrange and secure the insertable swirl nozzle 205 in the nozzle body 220. The pressure fluid nozzles 280 can merge into a surface structuring 289 or be arranged in this surface structuring in order to support swirl formation and the pressure fluid flow into the cavity 240. In particular, the surface structuring 289 itself can run in a swirl-like manner in the cavity 240.

[0085] As in Figs. 3A bis 3C As shown, the fiber ribbon end 140 can be formed by individual fibers 130. This fiber ribbon end 140 with its fibers 130 can be guided into the cavity 240 or by the suction along the suction direction 350 (see Fig. 2 ) into the cavity 240. The suction can be adjusted to such a strength that the fibers 130 separate at a point between the suction section 310 of the insert 300 and the suction nozzle 120 (here, in relation to the receiver 110, a suction nozzle is used, but other holders for receiving a fiber sliver 135 can also be provided accordingly) of the receiver 110. This allows a new fiber sliver end 140a to be formed. The fiber sliver 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 ).

[0086] Alternatively or additionally, in particular after a separation 520 of an old fiber sliver end 140, the fiber sliver end 140 can be sharpened 530 to form a sharpened fiber sliver end 140b. In this case, 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 as to be able to generate a rotary pressure fluid screw in the cavity 240. Due to the pressure fluid rotation that can be initiated thereby, the fibers 130 can conically converge in the suction direction (even without suction; towards the rear part of the cavity 240) and the fiber sliver end 140 can conically taper to the sharpened fiber sliver end 140b. The pressure fluid rotation can also twist the fibers 130 relative to 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.

[0087] Fig. 3B shows, as already described elsewhere, a new fiber bundle as fiber ribbon end 140, which can be reinserted into the cavity 240 after a separation (in case of only slight damage, further separation can be omitted in order to save material) in order to produce a compression and twisting of the fibers 130 towards a compressed fiber ribbon end 140 as a pointed fiber ribbon end 140b, as shown in Fig 3C is shown, wherein the pointed fiber ribbon end 140b in Fig. 3C is removed from the cavity 240.

[0088] Fig. 5 shows an embodiment of a pickup 110, which is arranged on a base plate 185 and has a rotational suspension 170 in order to be able to pivot reversibly between two end positions in a pivoting direction 190. In this case, the Fig. 5 The orientation shown can be referred to as the transfer position, since the orientation direction 180 can be parallel to a main suction direction 350. In this case, the pickup 110 rests firmly against a stop 155 in particular to stabilize the position.

[0089] In contrast, a receiving position (not shown) can be provided in which the receiver 110 can be oriented in particular largely downwards, in particular vertically downwards, in order to receive the fiber sliver 135 from a can 630 which can be arranged in particular below the work station 620.

[0090] The pickup 110 can have a vacuum sensor 160, which is particularly designed and arranged to perform fiber sliver monitoring. The vacuum sensor 160 is designed and arranged to monitor a vacuum in the suction nozzle 120 of the pickup 110 in order to initiate a further fiber sliver search based on a threshold value. This allows the pickup 110 to determine whether a fiber sliver 135 has been picked up, whether the fiber sliver 135 has been lost, or whether a search should be continued.

[0091] 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. In particular, the holding device 400a has a support structure 420. This can, as in Fig. 6 shown, in particular a support hook. Alternatively, a support eyelet or other structures that at least partially allow the fiber sliver 135 to be placed can also be provided. Furthermore, the support structure 420 allows movement of the fiber sliver 135 laterally to the machine (lateral direction), i.e. out of the sheet plane, to be restricted, whereby the tensile forces on the fiber sliver 135 can be limited. Tensile forces can arise from gravity on the one hand, and from movements on the other. 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.According to this embodiment, the anchoring structure 430 is formed by a rod-shaped support element that extends from the front plate 440 to the support structure 420 in the fiber sliver transport direction. The anchoring structure 430 can be attached to the front plate 440 or formed integrally with it from the same material.

[0092] Additionally or alternatively, a guide structure 410 can be provided, which can also form a fiber sliver guide 446 of the pre-compressor 445 to a cover plate. This can restrict the movement of the fiber 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 work stations). In this case, the fiber sliver 135 has been introduced into the holding device 400a, in particular before being transferred from the feeder 300 to the receiving section 460 of the pre-compressor 445.

[0093] Fig. 7 shows an exemplary embodiment of a round can 720 having a round can rim 710 that can function as the upper boundary of a wall of the round can 720. The wall can form a round can outer surface 715 as well as a round can inner surface 725. A fiber sliver 135 (not shown here) can be inserted into the round can 720, in particular in a spiral shape. As described elsewhere, the fiber sliver 135 can be threaded into the fiber 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 to support the fiber sliver 135 for pre-compression.In this case, a triangle can be formed between a receiving section 460, a point below it in the round can 720, and the point on the outer radius at which a fiber sliver 135 is received, the longest side of which triangle simulates a course of the fiber sliver 135 into the pre-compressor 445. In this case, a triangle can also be formed between the support area on the holding device 400a and the point below it in the round can 720, as well as between the support area and the outer radius at the point where the fiber sliver 135 is received. In this case, the angle in the support area on the holding device 400a can become (too?) large, which can cause the fiber sliver 135 to slip off the holding device 400a. This can lead to the fiber sliver 135 tearing off, in particular from a spinning station 465, which can cause the spinning process to be interrupted.

[0094] Fig. 7 further shows an RFID 632 arranged on the can 630, which contains readable information about the sliver material deposited in the can 630. A readout unit (not shown) for reading the information from the RFID 632 is arranged on the sliver feeder 100. The readout unit is designed to provide the readout information to an evaluation unit (not shown) for evaluation. The evaluation unit can be any unit suitable for evaluating information. The evaluation unit can be a component of the workstation 620, the textile machine 600, the sliver feeder 100, the service unit 900, or a unit arranged separately therefrom, to which the readout information is transmitted for evaluation and which can evaluate the transmitted readout information.The stored and readable information can be information about the sliver material deposited in the can 630, which has been assigned to the work station 620 for processing. Reading out this information by the readout unit and making it available to the evaluation unit makes it possible to check whether the work station 620 has been assigned the correct sliver material for producing a predetermined thread of defined quality, for which a specific sliver material is required. The evaluation unit can preferably be communicatively connected to a control and / or regulating unit (not shown), which controls the sliver feeder 100 in a defined manner. Thus, during the evaluation, it can be determined that an incorrect orIf incorrect fiber sliver material has been assigned for the production of the predetermined thread, corresponding information can be provided by the evaluation unit to the control and / or regulating unit. The control and / or regulating unit is further configured, in particular, to control the fiber sliver feeder 100 in light of this information in such a way that the fiber sliver feeder 100 does not feed the fiber sliver 135 from the can 630 to the spinning station 465 of the work station 620. This prevents the work station 620 from processing incorrect or incorrect fiber material for the production of the predetermined thread, thereby minimizing waste and defective production.

[0095] Fig. 8A und Fig. 8B show an embodiment of a further holding device 400b on a pre-compressor 445, wherein the further holding device 400b differs from the one shown in Figur 6 The holding device 400a shown 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. As a result, 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.

[0096] In particular, a support structure 420 is designed with a joint 425 to arrange a locking device 435 so as to be rotatable about the joint. In one state, the locking device 435 can limit a lateral movement of a guided fiber sliver 135 to the side (in a front view). As a result, the fiber sliver 135 can no longer slip laterally from the support area of ​​the further holding device 400b. Contact with the locking device 435 can be established during threading by the inserter 300 or by the fiber sliver 135, wherein the inserter 300 and / or the fiber sliver 135 carried by the inserter 300 can rotate the locking device 435 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 sliver 135 into the further holding device 400b and the pre-compressor 445.After the fiber band 135 has been released by the inserter 300 after threading, the locking device 435 can return to its starting position (as shown in the . Figs. 8A und 8B shown) in particular automatically return via a return spring arranged in the joint 425 to lock the support area. This prevents the fiber sliver 135 from slipping down, particularly when using round cans 720.

[0097] Fig. 9 shows a schematic representation of an exemplary embodiment of a service unit 900. The Fig. 1A The covers 612 shown are not shown in order to provide a view of 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 here. The fiber sliver feeder 100, as also described in detail elsewhere, is arranged below the connecting structure 448. In particular, the previously described structures comprising suction pipe 150, stop 155 and suction nozzle 120 are arranged on one leg side, while the preparation device 201, in particular with the swirl nozzle 205, in particular designed as a separating nozzle 200, with the nozzle body 220 is arranged on the other leg side. Their function and structure have been described elsewhere, and reference is made to these explanations here.

[0098] The cavity 240 of the vortex nozzle 205 can be connected to the waste pipe 250, in particular via the suction section 260. 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 wall 278 separates, in particular, the flow section 915 in the leg 610. The flow section 915 is, in particular, designed 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 such that the flow guided by the flow section 915 penetrates the filter in order to clean the flowing fluid of fibers and fiber fragments. The filter 950 can be removed and thus replaced by inserting it into a filter holder 958 through a slot 955.The insert 955 can insert the filter 950 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.

[0099] Fig. 10 schematically shows a method 500 for fiber sliver take-up in a textile machine 600. The method 500 can comprise the step of taking up 510 a fiber sliver 135 by a take-up device 110, as described in detail elsewhere. The method 500 can comprise the step of transferring 540 a fiber sliver 135, in particular a fiber sliver end 140, from the take-up device 110 into a feeder 300, as described in detail elsewhere. The method can comprise the step of transferring 540 the fiber sliver 135, in particular the fiber sliver end 140, from the feeder 300 into the feed section 462 of a spinning station 465 and / or the take-up section 460 of a pre-compressor 445, as described in detail elsewhere.

[0100] The method 500 may include the step of fiber sliver monitoring. A vacuum sensor 160 may monitor a vacuum and initiate a further fiber sliver search based on a threshold value, as described in detail elsewhere, see in particular Fig. 5 .

[0101] 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 bis 3C The method may include the step of sharpening 530 the fiber ribbon end 140 to form a sharpened fiber ribbon end 140b, as described with respect to the Fig. 3C is described in detail.

[0102] 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 band end 140 to form a new fiber band end 140a, as previously described with respect to the Fig. 3A bis 3C The method 500 may include the step of sharpening 530 the fiber ribbon end 140 to form a sharpened fiber ribbon end 140b, as described with respect to the Fig. 3C is described in detail.

[0103] 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 respect to the Fig. 6 described. 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 can be placed on a laying structure 420 of the holding device 400a, as described with respect to the Fig. 6 Alternatively or additionally, the fiber ribbon 135 can be inserted into a guide structure 410 of the holding device 400a, as described with respect to the Fig. 6 described.

[0104] A textile machine 600, as exemplified in the Figs. 1A und 1B shown and described in this regard, may comprise a sliver feeder 100 as described with respect to the Fig. 2 Furthermore, the textile machine 600 can be designed and configured to carry out a method as described with respect to the Fig. 10 described.

[0105] An exemplary structural diagram of an embodiment of a pickup 110, during the step of picking up 510 (see also the exemplary schematic representation of a method 500 in Fig. 10 ), is in the Fig. 11A shown. In particular, the fiber sliver 135, which is stored in a can 630, is picked up. The can 630 is arranged in particular in a can region 1100. The can 630 can have a can rim 1110 between an inner can wall 1120 and an outer can wall 1115. The fiber sliver 135 can in particular be laid over the can rim 1110. The suction pipe 150 of the pick-up 110 points in particular downwards in order to pick up the fiber sliver 135. In this case, a suction can be formed via a suction nozzle 120 of the pick-up 110 in order to suck in the fiber sliver 135.

[0106] In Fig. 11B A preparation step is shown as an exemplary structural embodiment, in which a severing 520 of a fiber sliver end 140 is to be carried out. In a preparation step, the pickup 110 can be moved into a particularly horizontal position by moving the pickup 110 up to a stop 155. In this case, the pickup 110 can be moved toward the preparation device 201 described elsewhere, in particular the swirl nozzle 205 and / or separating nozzle 200, until a suction force sucks the fiber sliver end 140 into a suction section 260 of a cavity 240 of the swirl nozzle 205. This can result in the severing of the fiber sliver end 140. As a result, a new fiber sliver end 140a can be formed, wherein a fiber sliver residue 131 remains in particular in the cavity 240 and can be removed via it.

[0107] A severing 520 of a fiber sliver end 140 is carried out in particular by a suction into the cavity 240 pulling a part of a fiber sliver 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. In this case, the fiber sliver 135 is severed in a region of the fiber sliver end 140. As a result, a new fiber sliver end 140a can be formed, as shown in Fig. 11C is shown. In this case, a fiber sliver residue 131 can remain in the cavity 240. This fiber sliver residue 131 can be disposed of in particular via a pipe system 450, which is connected in a communicating manner to the cavity 240. In this case, a waste pipe 250 can also be formed. It can also, as with regard to the Fig. 9 As described, a suction device 920 can be operated both for the disposal of the fiber sliver residue 131 and for the application of a negative pressure to form the suction.

[0108] In Fig. 11D A method step of sharpening 530 is shown as an exemplary structural embodiment. The feeder 110 can be moved back toward the preparation device 201 in order to introduce the (new) fiber ribbon 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 pressurized fluid flow vortex in the vortex nozzle 205, as described elsewhere, the fiber sliver end 140 is sharpened into a sharpened fiber sliver end 140b.

[0109] In Fig. 11E , a method step of removing the sharpened fiber sliver end 140b is shown as an exemplary structural embodiment. The feeder 110 can be moved away from the preparation device 201 again in order to remove the sharpened fiber sliver end 140b from the cavity 240. In particular, the inserter 300 can be moved in front of the sharpened fiber sliver end 140b in order to suck in the sharpened fiber sliver end 140b by suction. A rotation mechanism 480 can move the inserter 300, as shown in the Fig. 11F is described, there during a transfer of a fiber band 135 to a receiving device 460. The insert 300 with its suction section 310 can be designed to be smaller in diameter than the suction section 310 of the receiver 110, whereby installation space can be saved.

[0110] Fig. 11F shows a feeder 300 as it is arranged in a transfer position. In this case, a rotation mechanism 480 can be formed by an assembly 1140, which can perform a rotation of approximately 180° at joints 1130. A rotation between 100° and 200°, in particular between 150° and 190°, can take place. In this case, the feeder 300 can be arranged on the assembly 1140 via a joint 1155 on the assembly 1140 in order to also move the feeder 300. It can be provided that the feeder 300 can be moved in a coordinated manner with the assembly 1140. This can result in a coordinated movement through the previously described angles and / or angular ranges. In this case, it can also be provided in embodiments that each of the two devices can be moved through the respective angles and / or angular ranges.

[0111] The inserter 300 is connected in particular to a suction line 1150. This allows a suction flow to occur at a suction section 310 of the inserter 300, which allows the fiber sliver end 140 to be transferred into the inserter 300, as described elsewhere.

[0112] In Fig. 11F In particular, threading of the fiber sliver 135 from a can 630, here designed as a rectangular can, is shown. After the fiber sliver 135 has been taken over from the receiver 110 by the inserter 300, the fiber sliver 135 can be threaded into a receiving device 460, which forms a fiber sliver guide 446 in a pre-compressor 445.

[0113] "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).

[0114] If necessary, isolated features may also be selected 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 connection that may exist between the features. Bezugszeichenliste

[0115] 100 Sliver feeder 110 Pickup 120 Suction nozzle 130 Fiber 131 Sliver residue 135 Sliver 140 Sliver end 140a Newly created sliver end after cutting off a previous sliver end 140b Pointed sliver end 150 Suction tube 155 Stop 160 Vacuum sensor 170 Rotational suspension 180 Holding orientation 185 Base plate 190 Swivel direction 200 Cutting 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 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 Support structure 425 Joint 430 Anchoring structure 435 Locking device 440 Front plate 445 Pre-compressor 446 Sliver guide448Connecting structure 450Pipe system 452, 454, 456Pipe segments 460Pre-compressor receiving section 462Spinning station feed section 465Spinning station 480Rotation mechanism 500Process 510Spooling of a sliver in a can 520Suction and separation of the sliver / sliver end 525Cutting edge for shortening the image 530Pointing of the sliver end 540Transferring the sliver to the pre-compressor receiving section 600Textile machine 610Legs 612Cover 614Connecting structure 620Working station 630Can 632RFID 640Viewing recess 642Viewing window 710Round can rim 715Round can outer surface 720Round can 725Round can inner surface 800Coil winding 810Cross-wound coil 900Service unit 910Filter point 915Flow section 920Suction device 950Filter 955Insert 958Filter holder 1100Can area 1110Can rim 1115Can outer wall 1120Can inner wall 1130Joint 1140Assembly 1150Suction line 1155Joint

Claims

1. Sliver feeder (100) for a textile machine (600) comprising - at least one pickup (110); and - at least one inserter (300); characterized in that the receiver (110) is designed and arranged to receive a fiber 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 receiving section and is designed and arranged in such a way as to transfer the fiber sliver (135) to a fiber sliver guide (446), in particular to a receiving section (460) of a pre-compressor (445).

2. Fiber sliver feeder (100) according to claim 1, characterized in thatthe insert (300) is designed in such a way to receive a fiber sliver (135), in particular a fiber sliver end (140), in one position from the receiver (110), wherein the receiving section of the insert (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 fiber sliver (135), in particular the fiber sliver end (140), in particular in such a way as to receive the fiber sliver (135) or the fiber sliver end (140) directly.

3. Sliver feeder (100) according to one of the preceding claims, characterized in thatthe inserter (300) is designed to carry out a movement in order to transfer the fiber sliver (135) to a receiving section (460), in particular a pre-compressor (445) or a feed section (462) of a spinning station (465), wherein the fiber 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 thatat least one preparation device (201), in particular a swirl nozzle (205), further in particular at least one separating nozzle (200), is designed and arranged in such a way as to receive a fiber sliver end (140) from the receiver (110) and to prepare it for transfer to the inserter (300), in that at least one of the following functions can be carried out by the preparation device (201): - a separation (520) of the fiber sliver end (140) to form a new fiber sliver end (140a); or - a sharpening (530) of the fiber sliver end (140) to form a sharpened fiber sliver (140b).

5. Sliver feeder (100) according to one of the preceding claims, characterized in thatthe pickup (110) and / or the inserter (300) has a vacuum sensor (160) for fiber sliver monitoring, 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 fiber sliver search based on a threshold value.

6. Sliver feeder (100) according to one of the preceding claims, characterized in thata holding device (400a, 400b) is provided for the fiber 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) from moving out a fiber sliver (135) in a first state and to make the laying structure (420) accessible for inserting the fiber sliver (135) in a second state; wherein the inserter (300) is designed to introduce the fiber sliver (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 sliver (135) from the inserter (300) to the laying structure (420). 7.Nozzle body (220) designed for a fiber sliver feeder (100), in particular according to one of the preceding claims, wherein the nozzle body (220) comprises a vortex nozzle (205), characterized in thatthe swirl nozzle (205) is designed to be arranged in the nozzle body (220) or wherein the swirl nozzle (205) is arranged in the nozzle body (220) in order to receive a sliver end (140) from a receiver (110) of the sliver feeder (100) and to prepare it for transfer to a feeder (300) of the sliver feeder (100), wherein the swirl nozzle (205) has at least one pressure fluid nozzle (280) for supplying a pressure fluid stream into a cavity (240) of the swirl nozzle (205), wherein the pressure fluid nozzle (280) is designed and arranged in such a way as to generate a pressure fluid stream vortex in the cavity (240) by means of the pressure fluid stream 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 fiber ribbon end (140) to a sharpened fiber ribbon end (140b) is made possible. 8.Service unit (900), in particular comprising a fiber sliver feeder (100) according to one of claims 1 to 6, characterized in that a receiver (110) for receiving a section of a fiber 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 as to at least temporarily and at least partially suck in a fiber sliver section with a fiber sliver end (140) of the fiber 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 downstream of the suction section (260) and is designed 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 a fiber sliver take-up in a textile machine (600), characterized bythe steps: - picking up (510) a section of a fiber sliver (135) by a pick-up (110); - transferring the fiber sliver (135) from the pick-up (110) into a feeder (300); and - transferring (540) the fiber sliver (135) from the feeder (300) into a receiving section (460) of a pre-compressor (445).

10. Method (500) according to claim 9, characterized by the step: - a fiber sliver monitoring, wherein a vacuum sensor (160) monitors a vacuum in the pickup (110) and / or the inserter (300) and initiates a further fiber sliver search based on a threshold value.

11. Method (500), in particular according to one of claims 9 or 10, characterized by at least one of the steps: - severing (520) a fiber sliver end (142) to form a new fiber sliver end (140a); or - sharpening (530) the fiber sliver end (142) to form a sharpened fiber sliver end (140b).

13. Method (500) according to one of claims 9 to 11, characterized by the step: - introducing the fiber sliver (135) into a holding device (400a, b), in particular a holding device (400a) according to claim 6, wherein the fiber sliver (135) is placed on a laying 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 comprises 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 configured to carry out a method (500) according to one of claims 9 to 12.

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