Strip feeder and method

Abstract

The invention relates to a sliver feeder for a textile machine, having at least one picking unit and at least one feeder unit. In order to improve the handling of the fiber material and to increase the quality of the sliver to be transferred to a precompactor, thus increasing the process stability and thereby saving resources, it is provided that the picker is designed and arranged to pick up a sliver, in particular from a sliver can of the textile machine, and to transfer the sliver to the feeder unit, wherein the feeder unit has a take-over section and is designed and arranged to transfer the sliver to a sliver guide, in particular to a picking section of a precompactor.

Description

Technical Field

[0001] This invention relates to a sliver feeder for a textile machine. This invention relates to a vortex nozzle. This invention relates to a service unit. This invention also relates to a method for picking up slivers in a textile machine. This invention further relates to a textile machine. Background Technology

[0002] Sliver feeders are known in the field of textile machinery, specifically spinning machines or twisting machines. Sliver feeders are used to transfer fibrous material (which may be provided in the form of slivers in sliver cans) to the spinning device (also known as a spinning station).

[0003] Handling fibrous materials is a technical challenge because, on the one hand, the fibers must be kept together for processing, but on the other hand, they cannot be over-compressed, as this would make further processing more difficult. The handling of many individual fibers in the sliver can only be carried out in a complex manner at the transfer point of the spinning station on the textile machine. If the fibrous material is not transferred accordingly to the pick-up section of the textile machine, this can lead to machine malfunctions, such as due to blockages in the spinning station. Furthermore, malfunctions can occur due to sliver loss and the need for repeated pick-ups. This requires time and resources. Summary of the Invention

[0004] Therefore, the object of the present invention is to improve the processing of fibrous materials and enhance the quality of the strips to be transferred, specifically to improve process stability and save resources.

[0005] This objective is achieved by the strip feeder, vortex nozzle, service unit, method, and textile machine of this application.

[0006] According to one aspect, this objective is achieved through a strip feeder.

[0007] The sliver feeder may have at least one pickup unit and at least one feeder unit. The pickup unit may be designed and arranged to pick up slivers and transfer them to the feeder unit. Specifically, the feeder unit has a connecting section and is designed and arranged to transfer the slivers to a sliver guide, specifically the pickup section of the precompactor. This improves the handling of fibrous materials. Furthermore, it enhances the quality of the slivers to be transferred to the sliver guide. As a result, process stability is improved, thereby saving resources.

[0008] A segment is a dimensionally defined area of ​​a part or fragment of a physical object, such as a component or element of a component or device or equipment.

[0009] The fibers specifically exist in the form of slivers, which can be in a material conveying state. Specifically, the fibers are connected to each other, for example, purely by mechanical friction within the sliver, preventing the sliver from unraveling and allowing the fibers to be conveyed. Specifically, the sliver is designed to be inserted into a textile machine. The sliver can be designed to be fed to a sliver guide, specifically a pre-compactor.

[0010] Specifically, the sliver guide is a structure designed and arranged to guide the sliver between the sliver can and the spinning station. As a result, the weight load on the sliver is reduced, for example, due to the sliver's own weight. Consequently, the sliver is less likely to tear off from the spinning station or break.

[0011] Specifically, the sliver guide can be a pick-up section of a precompactor. A precompactor is a device in a textile machine that increases the density in a sliver. A precompactor can be designed to prepare slivers and fibers conveyed within them for textile production processes (such as spinning processes performed in a defined manner), wherein the spinning process specifically occurs in a spinning station of a corresponding spinning machine. The precompactor is designed to precompact the sliver before feeding the fibrous material of the sliver to another processing step (such as a spinning process) by the sliver production line. Specifically, precompaction allows the sliver to be compressed relative to its thickness in a defined manner as it passes through the precompactor. For this purpose, the precompactor can specifically have a sliver guide section that extends along the sliver conveying direction and tapers in a defined manner. The taper can be continuous, specifically edgeless, or discontinuous, such as stepped.

[0012] Slivers are fed into the textile machine in a so-called sliver can. The sliver can may be a container designed to hold at least one sliver. One end of the sliver may protrude beyond the edge of the sliver can for identification and pickup by a pickup unit. Alternatively or additionally, the pickup unit may also be engaged within the sliver can to pick up the sliver from it. The sliver is specifically stored in the sliver can, which may be designed to be replaceable. Thus, the sliver can be removed from the sliver can and fed into the textile machine. To enable the transition from the sliver can to the pickup section of a sliver guide, such as a precompactor, equipment capable of performing removal from the sliver can may be required.

[0013] Specifically, the pickup unit is a device capable of picking up strips from the edge of the strip can and / or from the strip can. This can be achieved, for example, using mechanical or electromechanical clamping devices. Alternatively, according to a preferred embodiment, a suction device, as described elsewhere, can be provided. Specifically, the pickup unit performs the function of picking up the end of the strip from the strip can.

[0014] An implementation can be provided where the pickup unit also functions as a feeder unit. The pickup unit not only picks up strips but also feeds them into strip guides, such as the pickup section of a precompactor, and is thus configured as a feeder unit. This allows for a simpler structure, as only one component needs to be provided.

[0015] The feeder unit is specifically a device arranged and designed to insert sliver into the feed section of a spinning station, wherein the feeder unit is at least arranged and designed to transfer the sliver to a sliver guide. The feeder unit may be housed together with a pickup unit in a single unit, as described above. Alternatively (or additionally, for different spinning stations), the feeder unit may form its own component, which may be specifically designed to have a take-off section positioned relative to the pickup unit to facilitate take-off from the pickup unit. The feeder unit and the pickup unit may face each other in the transfer position, such that the transfer can be performed in a straight line. In other words, the feeder unit may face the pickup unit to enable the transfer / take-off of the sliver. Furthermore, the feeder unit is specifically designed to subsequently perform a movement to bring the sliver into the vicinity of the feed section of the spinning station for transfer to the spinning station. The feeding section of the spinning station, specifically used to feed sliver to the sliver feeder of the downstream spinning station where yarn is spun, can face the pick-up section of the feeder unit. This facilitates transfers and reduces the likelihood of sliver loss (in the sense of dropping) during any of these transfers.

[0016] In this preferred embodiment and other preferred embodiments, the feeder unit may be designed and arranged such that when the sliver, specifically the end of the sliver, is fed to the feeding section of the spinning station, the feeder unit, according to one preferred embodiment of the described preferred embodiment, guides or inserts the sliver into the sliver guide.

[0017] According to one aspect, the feeder unit can be designed to take over the strip from the pick-up unit in one station, specifically the end of the strip. The take-up section of the feeder unit can be designed as a suction section of the feeder unit, specifically parallel to the holding orientation of the pick-up unit, to suck in the strip, specifically the end of the strip, specifically by directly taking over the strip or the end of the strip. As a result, the possibility of strip dropping is reduced. This specifically improves process stability, thereby saving resources.

[0018] In this preferred embodiment and other preferred embodiments, the pickup section can be designed as a suction section. Specifically, the suction section is formed by the opening of a suction tube, wherein the tube is formed specifically perpendicular to the main suction direction of the opening surface. This may also correspond to or coincide with a suction flow (in a physical and mathematical sense).

[0019] The phrase "maintaining orientation parallel to the pickup unit" can be specifically understood as meaning that this orientation can be specifically defined by the aforementioned main suction direction. Specifically, this main suction direction is parallel to the transfer direction from the pickup unit to the feeder unit in the transfer arrangement of the two devices. Specifically, the two directions can coincide on a common line.

[0020] The phrase "from the pick-up unit in a station" can specifically refer to the takeover station of the feeder unit relative to the pick-up unit. Alternatively, a preferred embodiment may be provided in which the pick-up unit moves toward the feeder unit to deliver the strip, specifically the end of the strip, to the feeder unit. In one station of the pick-up unit, the feeder unit also occupies the station. In another station of the feeder unit, it may be specified that the feeder unit may be positioned near the pick-up section of the precompactor so that the strip can be transferred accordingly to the pick-up section of the precompactor. This results in a transition from one station to another, or from another station to one station, specifically by moving the feeder unit and / or the pick-up unit, as described elsewhere. In this way, the pick-up unit may also perform alternative or additional movements so as to be able to change from a pick-up position (one station) to a transfer position (another station), or from a transfer position to a pick-up position.

[0021] The strip can be directly taken over, specifically the end of the strip. "Directly" means that for a period of time, the strip or the end of the strip can come into contact with both the pickup unit and the feeder unit. Specifically, it is not necessary to store the strip or the end of the strip simultaneously for the feeder unit to perform a new pickup. Instead, the transfer is carried out directly, specifically without intermediate stages (and / or intermediate steps).

[0022] According to one aspect, the feeder unit can be designed to perform movement (as previously mentioned) to transfer sliver to the feeding section of the spinning station and / or the pick-up section of the precompactor. The feeder unit and the feeding section of the spinning station can be oriented such that the sliver bends during transfer. Specifically, this enables repeatable transfers. Specifically, this also enables an easily traversable path for the feeder unit between the (first) station / position from the feeder unit to the pick-up unit and another (second) station / position from the feeder unit to the spinning station. Specifically, transfers to the feeding section of the spinning station, specifically to the rotor or air-jet spinning station, can be achieved.

[0023] The movement can be a rotational movement of the feeder unit; alternatively or additionally, the entire assembly can rotate about at least one axis. As a result, the feeder unit can change between the aforementioned positions (also referred to as stations), in which the feeder unit takes over the sliver from the pick-up unit, specifically the end of the sliver, in one position / station (also referred to as a location), and transfers the sliver to the pick-up section of the precompactor and / or the feeding section of the spinning station in another station.

[0024] Here and elsewhere, takeover and transfer are used specifically in relation to the components just described. As an example, a transfer or conveyance from the pick-up unit to the feeder unit should be understood as simultaneously taking over from the pick-up unit or picking up the feeder unit. Thus, components and equipment can also assume different roles as pick-up unit and distribution unit or transfer unit and takeover unit.

[0025] The curvature of the sliver is specifically designed such that the sliver is oriented in one (first) orientation in the suction section of the feeder unit, and in another (second) orientation in the feeding section of the spinning station. The two orientations of the sliver can be mirror images of each other on an axis, specifically a vertical axis. The sliver bends through the mirror, specifically when transitioning from one orientation to the other. As a result, a firm and controlled transition is specifically achieved. Specifically, the feeding section of the spinning station is designed as a sliver feeding section, for example in the form of supply rollers, such as the supply rollers of a rotor spinning machine or the input rollers of a pair of input rollers in the drafting system of an air-jet spinning machine.

[0026] According to one aspect, at least one preparation device, specifically a rotating nozzle, and more specifically at least one separating nozzle, can be specifically designed and arranged to pick up the sliver end from the pickup unit and prepare to transfer the sliver end to the feeder unit. This is specifically accomplished by preferably having the preparation device perform at least one of cutting the sliver end and / or sharpening the sliver end. Similar to sharpening a pencil, sharpening means reducing the thickness of the sliver up to the free end, specifically by compressing the fibers and / or reducing / sparsening the number of fibers. In other words, starting from the free end of the sliver, the sliver thickness continuously increases in the direction of extension of the sliver until the thickness of the sharpened region corresponds to the thickness of the adjacent sliver segment and merges therein. As a result, the sliver can be prepared to facilitate easier handling of the fibers during transfer / bearing, thereby improving process reliability and optimizing the transition.

[0027] Preferred embodiments may exist that combine the foregoing aspects and implementations with the preparation equipment described herein. In other preferred embodiments, such as for other pickup units or other feeder units, the preparation equipment described herein may also be used. The preparation equipment is specifically used to take over the sliver end from the pickup unit and prepare it for transfer to the feeder unit (or from the feeder unit to the spinning station). As a result, regardless of the structure and functional design of the feeder unit, pickup unit, or spinning station's feeding section and / or sliver guide, specifically the pickup section of the precompactor, as described herein, and their relative positions in different stations as described herein, sliver end preparation can be achieved to enable stable transfer and reduce the possibility of any damage or loss of the sliver. Consequently, process reliability can be improved and fewer resources can be used.

[0028] Specifically, the end of the sliver is the free end of the sliver, through which the sliver can be inserted into the feeding section of the spinning station, or the sliver can be picked up through the free end or picked up in the suction section of the feeder unit.

[0029] According to a preferred embodiment, the separating nozzle can be used as a preparation device. Specifically, it can be specified that the sliver end can be cut off to obtain a new, "fresh" sliver end. As a result, damaged fibers can be removed to reduce the risk of breakage during subsequent line production. Separation can be specifically achieved by applying a vacuum. The section behind the free end of the sliver is pulled apart, causing the sliver end to be cut off and removed from the sliver. However, separation may also include cutting the sliver, specifically by means of a cutting tool.

[0030] Alternatively or additionally, a tapering of the sliver end can be provided, by which the fibers taper towards the end and the diameter of the sliver decreases towards the end. For this purpose, a pressurized fluid nozzle can be provided in the preparation equipment, which generates a tapered compression of the fibers towards the end of the sliver by means of a pressurized fluid jet. As a result, the aforementioned tapered sliver end can be formed.

[0031] According to a preferred embodiment, the pickup unit may have a negative pressure sensor, specifically designed and arranged to enable strip monitoring. The negative pressure sensor may be designed and arranged to monitor the negative pressure present in the pickup unit so that further strip searching can be initiated based on a threshold if necessary. As a result, it is possible to determine whether a strip has been successfully delivered to the feeder unit or whether strip loss has occurred.

[0032] Sliver monitoring can be specifically used to determine whether a sliver has been picked up accordingly. It can be specified that, in a textile machine, a sliver feeder of the type described herein can traverse a series of defined workstations. This is possible because the described sliver feeder is arranged on a service unit, as described elsewhere. In each case, a workstation may have a sliver can, a feeding section of a spinning station associated with the corresponding workstation, and / or a pickup section of a precompactor. By means of the pickup unit or various monitoring devices, such as sensors or cameras, the sliver feeder can determine where sliver pickup has occurred. If multiple attempts at a workstation are unsuccessful (the number of attempts can be predefined but also adjustable), the sliver feeder can move to the next workstation and ignore that workstation, marking it as unresolved or halting the workstation's journey and issuing a warning to the operator. The described actions can also be performed if sliver is repeatedly lost (the number of repetitions can also be set or predefined here).

[0033] Alternatively or additionally preferably, the feeder unit may have a negative pressure sensor. As a result, it can be determined whether the strip has been successfully transferred to the feeder unit and whether there has been any strip loss.

[0034] A negative pressure sensor can monitor negative pressure while monitoring strips to initiate further strip searches based on a threshold. The threshold can be defined as the number of unsuccessful attempts. Alternatively or additionally preferably, the threshold can represent the level of negative pressure (the level or intensity of negative pressure) from which it can be determined whether a strip has been picked up.

[0035] According to a preferred aspect, a retaining device for the strips can be provided, specifically arranged on the pick-up section of the strip guide, specifically on the pick-up section of the precompactor, or arranged on the support frame of the workstation, wherein the retaining device is further preferably arranged upstream of the pick-up section in the direction of strip conveying. Specifically, the retaining device has at least one of the following structures: A placement structure, specifically a hook or eyelet, can be provided to support the sliver against its own weight, thereby reducing the tension acting on the fibers along the direction of gravity, specifically on the feed section of the spinning station and / or the pick-up section of the sliver guide (specifically the pick-up section of the precompactor). As a result, the likelihood of fiber damage can be reduced. Furthermore, the likelihood of the sliver being torn can be reduced. It is also possible to guide the sliver in this manner. Alternatively or additionally, the placement structure can be designed and arranged to constrain, specifically restrict, the movement of the sliver away from the machine, specifically in the transverse direction (i.e., towards the longitudinal side of the machine). As a result, the process of guiding the sliver into the feed section of the spinning station and / or into the pick-up section of the sliver guide, specifically the precompactor, can be improved.

[0036] A guiding structure can be provided, specifically designed and arranged to provide lateral guidance at least on one side of the sliver, specifically on one side of the sliver in the longitudinal direction of the textile machine (i.e., toward the front or rear end of the textile machine or in the direction of an adjacent workstation). In other words, the sliver's swing can be restricted parallel to the longitudinal side of the textile machine. As a result, lateral tension can be reduced, thereby improving sliver guidance and reducing the likelihood of fiber damage. The guiding structure can be part of a sliver guide, specifically part of a precompactor. Preferably, the guiding structure is designed and arranged to transfer the sliver into a pick-up section of the precompactor while laterally restricting the pick-up section. According to a preferred embodiment, the guiding structure can at least partially or completely laterally define the pick-up section. Thus, the guiding structure is arranged at least partially or completely adjacent to the pick-up section parallel to the sliver guiding direction. Both the guiding structure and the pick-up section can be arranged and / or designed on the surface of a plate-like support element, for example, in the form of a front plate or cover plate.

[0037] Furthermore, preferably, an anchoring structure may be provided between the pick-up section and the placement structure. The anchoring structure may form a sliver boundary parallel to the longitudinal side of the textile machine. Preferably, the anchoring structure, together with the pick-up section and the placement structure, forms a pick-up area, which is at least partially defined by the pick-up section and the placement structure, specifically a U-shaped or C-shaped pick-up area, through which the sliver can be inserted or fed, or removed, via the open side of the feeder unit. Specifically, the guide structure preferably connects the pick-up section to the placement structure, whereby the placement structure undergoes anchoring. In other words, the design allows the anchoring structure to be arranged on and supported by the pick-up section, wherein the placement structure is arranged on and supported by the anchoring structure and thereby anchored. The connection between the structures can be a form fit, a force fit, or a material fit. The anchoring structure is preferably designed as a rod-shaped load-bearing element.

[0038] According to a preferred embodiment, at least partially movable blocking structures (also referred to as blocking devices) can be arranged and designed to interact with the placement structure, specifically on the anchoring structure and / or strip guide, such that in a first state, removal of a strip from the area of ​​the placement structure is blocked, and in a second state, the placement structure can be accessed to insert the strip. The blocking structure can preferably be formed of blocking elements, such as eyelets and / or hooks. Alternatively, the blocking structure is preferably formed of rod-shaped blocking elements. The blocking structure is movably mounted on at least one joint. Specifically, the blocking structure can be movably mounted on the joint such that movement specifically occurs in a direction parallel and / or antiparallel to the direction of movement of the feeder unit. The direction of movement can have at least one vector component, which can be implemented on one side of the workstation and / or textile machine. Preferably, the joint can be arranged on or connected to the placement structure. The joint can also preferably form part of the placement structure.

[0039] In this preferred embodiment or other preferred embodiments, the blocking structure can be moved to an open position by means of, for example, interaction with the feeder unit. It can be specified that the blocking structure specifically and independently moves back to the blocking position, for example by means of a return spring, which is specifically arranged and designed to interact with the connector for reset. The return spring can also preferably be arranged in the connector. The blocking position can be the initial position. As a result, active monitoring of the position during operation can be eliminated, which simplifies the structure.

[0040] To achieve the described advantages and effects, the strip, specifically the end of the strip, can be inserted into the pick-up area of ​​the placement structure to transfer from the feeder unit to the pick-up section, specifically the pick-up section of the precompactor. Here, the term "for transfer from the feeder unit to the pick-up section (of the precompactor)" refers to the possibility of performing threading into the pick-up section of the placement structure before or after the transfer to the pick-up section (of the precompactor).

[0041] According to a preferred embodiment, the anchoring structure, placement structure, blocking structure, and pickup section are designed and arranged such that they define a pickup area for the strip in the circumferential direction of the arrangement of the structure and pickup section by at least 75%, and more preferably in the circumferential direction, between 95% and 100% (inclusive). The feeder unit is arranged and designed to feed the strip to the pickup area via interaction with the movable blocking structure, so that the strip can be transferred to the placement structure.

[0042] According to a preferred embodiment, the retaining device can be a single component, optionally arranged in the sliver path (also called the sliver path) between the sliver can (also called the spinning sliver can) and the sliver guide, specifically arranged on the frame of a workstation or spinning machine. Here, the workstation can be a point where a spinning station can be arranged. Production for winding the spun yarn onto the bobbin, specifically cross-winding the bobbin, can also be carried out in the workstation. More preferably, the sliver guide with the retaining device can be formed by a single component and arranged in the sliver path between the sliver can and the spinning equipment. A single component is understood to mean, in each case, a component formed by the same material or preferably by joining different materials together or in a material-fitting manner.

[0043] The pick-up section of the strip guide, specifically the pick-up section of the precompactor, can be an area located directly or adjacent to the section of the strip guide that guides the strip in contact. The strip can be inserted or placed at or within the pick-up section.

[0044] According to another independent aspect, the object of the invention is achieved by a nozzle body having a vortex nozzle, wherein the nozzle body is designed for a strip feeder, specifically according to one embodiment of the described embodiments. The vortex nozzle is designed to be arranged in the nozzle body, specifically in a non-destructive, replaceable manner. Alternatively, the vortex nozzle may be arranged to be secured in the nozzle body. This arrangement allows strip ends to be picked up from the pick-up unit and prepared for transfer to the feeder unit, wherein at least one of the following functions can be performed: cutting off a previous strip end to form a new strip end or sharpening a strip end to form a sharpened strip end, as described above by way of example. As a result, the advantages and effects specifically described with respect to the strip feeder can be achieved. Specific reference is made here to notes elsewhere. As a result, strips or strip ends can be prepared, specifically to make it easier to handle strips or strip ends during transfer / connection, thereby improving process reliability and optimizing transition.

[0045] Regarding cutting and / or sharpening, refer to the notes elsewhere. These notes continue to apply accordingly to the vortex nozzles described herein. Thus, the separation nozzles described elsewhere can be vortex nozzles.

[0046] The vortex nozzle has a cavity in which vortices can be formed. Specifically, the vortex can be designed such that at least one set of vectors of the vortex vector field has a component parallel to the component of the cavity wall in the circulation direction. In other words, vortices are formed that are at least partially parallel to the cavity wall. Specifically, the cavity wall has a circular and / or elliptical cross-section.

[0047] The vortex nozzle can be designed to be replaceable. Specifically, the vortex nozzle can be designed to be removed from the nozzle body or inserted into the nozzle body. As a result, the design of the vortex nozzle, specifically its ability to create vortices, can be easily adapted to strip materials.

[0048] According to one aspect, the vortex nozzle has 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 vortex within the cavity. As a result, the strip end can be prepared in a defined manner to facilitate easier handling of the strip or strip end during transfer / connection, thereby improving process reliability and optimizing transition.

[0049] The pressurized fluid nozzle can be connected to at least one pressurized fluid supply from a pressurized fluid source so that the nozzle is subjected to a pressurized fluid flow. Specifically, the pressurized fluid nozzle is designed and arranged to introduce a pressurized fluid flow that has at least one vector component along the loop parallel to the inner cavity wall. The pressurized fluid nozzle can be arranged in a direction having at least one vector component pointing tangentially to the inner cavity wall of the cavity. The direction in which the pressurized fluid nozzle intersects the inner cavity wall to blow the pressurized fluid flow into the cavity can be at an angle to the tangential direction. Specifically, compressed air, dry air, and / or nitrogen, and mixtures thereof, can be used as the pressurized fluid.

[0050] The pressurized fluid nozzle intersects with the inner wall of the cavity to introduce pressurized fluid flow into the cavity, specifically blowing it into the cavity in the direction of the main flow from the cross-section of the pressurized fluid nozzle into the cavity.

[0051] This objective is also achieved, specifically, through a service unit, in a separate aspect. A pickup unit and an introduction device with a suction section can be arranged on the service unit, the pickup unit and the introduction device being allocated to each other such that a strip segment at the end of the strip picked up by the pickup unit is at least temporarily and at least partially drawn into the suction section of the introduction device. The strip segment to be drawn in is preferably the strip end. A flow section in the service unit can be arranged downstream of the suction section and is designed to form a suction flow at the suction section of the introduction device. At least one filter can be arranged in the flow section, wherein the service unit and the filter are preferably designed such that the filter is removable from the flow section. As a result, a separate introduction device can be provided to filter the drawn-in pressurized fluid flow, specifically the air flow, specifically after the strip end is cut, wherein fiber residue adheres to the filter. Therefore, the introduction device remains free of fiber residue, which improves the service life of the introduction device. The service unit and / or inlet device may be equipped with a monitoring unit, specifically a pressure fluid sensor, for monitoring the pressure fluid flow rate and / or pressure value in the area between the filter and the inlet device and / or in the area of ​​the inlet device. Deviations from a threshold can lead to the conclusion that the filter is clogged with fibrous material, allowing for cleaning of the filter, specifically by removal, in cases of defined clogging. For this purpose, the monitoring unit is preferably communicatively connected to an alarm unit to specifically issue an alarm signal visually, tactilely, and / or acoustically when deviations from the threshold occur. For example, the alarm unit may be visibly arranged on the service unit and designed to issue a visual alarm signal. Alternatively or additionally preferably, the alarm unit may be integrated into or disposed on mobile devices such as smartwatches, tablets, and laptops, and designed to issue alarm signals visually, tactilely, and / or acoustically.

[0052] Typically, the service unit can be a movable unit along the workstation of a textile machine and suspended from the support frame of the textile machine. Preferably, the service unit has a connection 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. As a result, vibration of the service unit as it travels along the workstation is prevented and reliable guidance of the service unit is ensured. Specifically, the roller unit has rollers arranged and designed to roll along roller guides on the support frame of the textile machine. The rollers are connected to the frame of the service unit via roller retainers. Preferably, the roller unit is arranged in the lower region of the service unit on the side of the service unit facing the support frame. As a result, the distance between the roller retainer and the roller can be kept to a minimum, thereby allowing the roller unit to be designed with reduced installation space.

[0053] Alternatively, the service unit may be a robotic unit (such as a robotic vehicle) such as an automated guided vehicle (AGV) or an autonomous mobile robot (AMR) that can move independently or autonomously in a known manner within a factory in which textile machines are arranged.

[0054] According to a preferred embodiment, the sliver feeder can be arranged on the service unit, as described elsewhere. Specifically, the sliver feeder can be arranged in the lower region (lower section) of the service unit, provided the service unit is suspended from the support frame of the spinning machine and is movable along the spinning machine. Specifically, the sliver feeder can be arranged below the service unit. As a result, the sliver feeder can move along the spinning machine by means of the service unit. The pickup unit can move from one sliver can to another to automatically remove the sliver from the sliver can or from the edge region of the sliver can in each case and transfer the sliver to the feeder unit for feeding, as described elsewhere. By arranging the sliver feeder below the service unit, the pickup unit can be moved to a sliver can arranged or positioned closer to the bottom of the spinning station to facilitate sliver pickup.

[0055] According to a preferred embodiment, a readout unit for reading memory and / or codes is arranged on a service unit or sliver feeder. Specifically, the readout unit is arranged and designed to read memory (such as RFID or a chip) or codes (such as lines and / or barcodes) attached to the sliver can and provide the readout information to an evaluation unit for evaluation. The stored and readable information may be information about the sliver material stored in the sliver can, which has been allocated to a workstation for processing. Reading this information by the readout unit and providing it to the evaluation unit makes it possible to check whether the correct sliver material has been allocated to the workstation for producing a predetermined yarn of a defined quality, for which material is required for this particular sliver. The evaluation unit is preferably communicatively connected to a control and / or regulating unit that controls the sliver feeder in a defined manner. In this way, if the evaluation unit of the control and / or regulating unit determines that incorrect or faulty sliver material has been allocated to a workstation for producing a predetermined yarn, the corresponding information can be provided. Furthermore, the control and / or regulation unit is specifically designed to take this information into account when controlling the sliver feeder, so that the sliver feeder does not undertake the operation of feeding the sliver from the sliver can to the spinning station. In this way, the workstation is prevented from handling incorrect or unsuitable fiber material to produce the intended yarn, thereby minimizing waste and erroneous production.

[0056] According to an independent aspect, this objective is also achieved by a method for picking up slivers in a textile machine. Specifically, the method includes the step of picking up a sliver segment via a picking unit. Alternatively or additionally, the method includes the step of transferring the sliver, specifically the sliver end, from the picking unit to a feeder unit. Alternatively or additionally, the method includes the step of transferring the sliver, specifically the sliver end, from the feeder unit to the picking segment, specifically the precompactor, and / or to the feeding segment of the spinning station.

[0057] The previously given definitions, technical effects, and advantages of the equipment continue to apply accordingly to the picking of sliver segments by the picking unit. Specifically, the picking unit picks up sliver segments such that it picks up sliver segments distinct from the free sliver ends, enabling the transfer of the free sliver end segments. Alternatively, preferably, the picking unit is capable of picking up the sliver ends. Thus, the method can be described accordingly by the features of the equipment. This also applies to the description of the equipment by the features, effects, and advantages shown regarding the method. This also applies accordingly to the transfer of sliver from the picking unit to the feeder unit and the transfer of sliver from the feeder unit to the feeding segments of the spinning station and / or the picking segments of the precompactor.

[0058] According to one embodiment of the method, a stripe monitoring system can be provided. A negative pressure sensor can monitor negative pressure and initiate further stripe searching based on a threshold.

[0059] Regarding "sliver monitoring," as well as negative pressure monitoring and threshold-based initiation of further sliver searches, the corresponding definitions of the equipment, the described effects, and the advantages achievable in this regard also apply to this method. Both categories can be described by the definitions, effects, and advantages of another category. This also applies to systems for textile machines.

[0060] Furthermore, one embodiment of the described method can provide separation, specifically cutting, of the strip ends. Alternatively or additionally, the strip ends can be sharpened to form sharpened strip ends.

[0061] Regarding "separation and specific cutting of the strip ends" and "sharpening of the strip ends," the corresponding definitions, described effects, and advantages of the equipment also apply to this method. Both categories can be described by the definitions, effects, and advantages of another category.

[0062] Depending on the specific aspect, a method may be provided, specifically, providing the steps of separating the ends of the strip (cutting off the ends of the strip to produce new ends of the strip), specifically cutting the ends of the strip. Alternatively or additionally, the ends of the strip may be sharpened to form sharpened ends of the strip. As a result, the advantages and effects described with respect to embodiments implementing the corresponding method steps elsewhere can also be transferred to other methods for feeding strips.

[0063] According to one embodiment of the described method, a step of inserting a sliver into a holding device may be provided. The sliver may be placed on a placement structure of the holding device for transfer to the feeding section of a spinning station and / or the pick-up section of a precompactor. Alternatively or additionally, the sliver may be inserted into a guide structure of the holding device.

[0064] Herein, the definitions, effects, advantages and features, specifically relating to “insertion into the holding device”, the holding device, “the feed section to the spinning station and / or the pick-up section of the precompactor” and the placement structure and the guiding structure of the holding device, continue to apply accordingly, as explained elsewhere.

[0065] According to an independent aspect, this objective is achieved by a textile machine specifically having a sliver feeder according to one embodiment of a preferred embodiment described elsewhere. Alternatively or additionally, the textile machine may have a nozzle body with a vortex nozzle, as described elsewhere. Alternatively or additionally, the textile machine may have a service unit, as described elsewhere. Alternatively or additionally, this objective is specifically achieved by a textile machine designed and constructed to perform one of the methods described elsewhere.

[0066] Specifically, the spinning machine can be a rotor spinning machine or an air-jet spinning machine, for which a sliver feeder can be designed. For rotor spinning machines or air-jet spinning machines, after the sliver is threaded into the holding device, the sliver is transferred to the feeding section (also called the sliver feeder) of the spinning station of the rotor spinning machine or air-jet spinning machine. Specifically, the sliver feeder has controllable driven rollers for controlling the feeding of the sliver. The rollers may (but do not necessarily) be installed upstream of the precompactor, as described elsewhere. For example, the rollers may be supply rollers that, together with the rotor spinning machine, are responsible for feeding the sliver into the spinning unit. Alternatively, the rollers may be input rollers of a pair of input rollers in a drafting system that, together with the air-jet spinning machine, is responsible for feeding the sliver into the spinning unit. The precompactor may (but does not necessarily) be installed upstream of the input roller pair, as described elsewhere. Attached Figure Description

[0067] In the following description, exemplary embodiments of the invention are illustrated in more detail with reference to the accompanying drawings, which are schematic and by way of example: Figure 1AThis is a schematic diagram of a cross-section of a spinning machine; Figure 1B This is a schematic diagram of the workstation view of a spinning machine; Figure 2 This is a schematic diagram of the strip feeder. Figure 3A This is a schematic diagram showing the view of the separating nozzle; Figure 3B This is a schematic diagram of a separation nozzle with a strip end; Figure 3C This is a schematic diagram of a separating nozzle with a fuse; Figure 4 This is a schematic diagram of a split nozzle designed as a vortex nozzle; Figure 5 This is a schematic diagram of the view of the picking unit; Figure 6 This is a schematic diagram of the holding device on the precompactor; Figure 7 This is a schematic diagram of the cylindrical bar below the retaining device on the precompactor; Figure 8A is a schematic side view of a retaining device with at least partially movable blocking equipment on a precompactor; Figure 8B is a schematic front view of a retaining device with at least partially movable blocking equipment on a precompactor; Figure 9 This is a schematic diagram of the view of a service unit; Figure 10 This is a schematic diagram of the method; Figure 11A This is a structural diagram illustrating the steps of a method for picking up strips using a picking unit; Figure 11B This is a structural diagram illustrating the steps of inserting a strip into the suction point for cutting. Figure 11C This is a structural diagram illustrating the steps of the cutting method; Figure 11D This is a structural diagram illustrating the steps of inserting a strip into the suction point for sharpening. Figure 11E It is a structural diagram of the sharpening method steps; and Figure 11F This is a structural diagram illustrating the method steps for feeding strips into the precompactor guide. Detailed Implementation

[0068] The same reference numerals are used for elements and structures that have the same function and / or the same type.

[0069] Figure 1AThis is a schematic cross-sectional view of a spinning machine 600, exemplified by a textile machine 600. Specifically, the textile machine 600 may have multiple workstations 620, which may be designed and arranged to spin yarn (also referred to as thread) in each case. Figure 1B The schematic diagram of the detailed view in the middle shows workstation 620.

[0070] In the textile machine 600, sliver 135 can be provided for spinning the yarn in the spinning station 465 of the workstation 620. Therefore, such a textile machine 600 can be a so-called spinning machine. A rotor spinning machine can be provided as a spinning machine, as shown herein by example. Alternatively, an air-jet spinning machine (not shown) can also be provided. Sliver 135 can be transferred to the textile machine 600, but this can be done fully automatically or at least semi-automatically. For this purpose, sliver 135 can be fed in a so-called sliver 630, presented in sliver 630, or an empty sliver 630 can be replaced with a filled sliver 630 to feed sliver 135 to the workstation 620. The textile machine 600 can also consist of an entire series of (homogeneous) workstations 620, such as... Figure 1A As shown and described accordingly, the workstation allows for the repeated feeding of sliver 135 to maintain the spinning process.

[0071] To enable transfer from sliver can 630 to the pick-up section 460 of the precompactor 445, a sliver feeder 100 for the spinning machine 600 can be used (at each workstation). Alternatively, a service unit 900, on which the sliver feeder 100 is arranged, can be provided, as described elsewhere. The service unit 900 can move freely along the spinning machine 600 between workstations, for example, to insert sliver 135 into the spinning station 465. Figure 2 The cross-sectional schematic diagram shows the strip feeder 100. Specifically, the strip feeder 100 has at least one pickup unit 110 and at least one feeder unit 300.

[0072] An exemplary embodiment of the feeder unit 300 is functionally in Figure 11F It is shown in the document and described in this regard.

[0073] Pick-up unit 110 is specifically used to pick up strip 135 from strip can 630 so that the strip 135 can be transferred to feeder unit 300. Specifically, feeder unit 300 has a connecting section that is formed and arranged to transfer strip 135 to pick-up section 460 of precompactor 445.

[0074] The feeder unit 300 can also be designed to allow strips 135, specifically strip ends 140, to be taken from pick-up unit 110 at a station. Figure 2The feeder unit 300 shown is specifically constructed and arranged such that the feeder unit 300's inlet section is designed as a suction section 310. The suction section 310 is oriented with its suction direction 350 specifically parallel to the holding orientation 180 of the pickup unit 110 (see also...). Figure 5 As a result, strip 135, specifically strip end 140, can be sucked in. Specifically, this can be accomplished by directly taking over strip 135 or strip end 140 from feeder unit 300, for example without deposition via intermediate stages or intermediate structures.

[0075] To enable negative pressure on the suction section 310, a tubing system 450 is provided, specifically having multiple sections 452, 454, and 456. The suction tube 320 of the feeder unit 300 (specifically independent of the tubing system 450) may be designed to be curved, specifically bent at approximately 90°, to transition from the supply area to a substantially parallel orientation between the suction direction 350 and the holding orientation 180 of the pick-up unit 110, in which the suction tube connects to the feeder unit retainer 340. The nozzle 120 of the pick-up unit 110 may have a suction direction deviating from the parallel orientation (not shown here for perspective; the suction direction extends into the plane of the sheet). However, a strip 135 that may have been picked up by the pick-up unit 110 and sucked in may be transferred to the holding orientation 180 for suction by the feeder unit 300, specifically in this direction (and therefore parallel to the suction direction 350 of the feeder unit 300).

[0076] Rotating mechanism 480 (see also) Figure 11F The feeder unit 300 is arranged on the feeder unit retainer 340 such that it moves in its suction direction 350 to the vicinity of the retaining orientation 180, specifically in the widest possible overlap, to take over the sliver 135 or sliver end 140. After taking over the sliver 135 or sliver end 140, the feeder unit 300 can be guided by rotational movement to the vicinity of the pick-up section 460, specifically the pick-up section 460 of the precompactor 445. The sliver 135 or sliver end 140 can be transferred to the feeding section 462 of the spinning station 465 to initiate or execute the spinning process. In this preferred exemplary embodiment, the feeding section 462 is a supply roller. The feeder unit 300 is designed to insert into the sliver end 140 and transfer the sliver end to the feeding section 462, specifically to the area near the supply roller, so that after the sliver end 140 is transferred from the feeder unit 300 to the feeding section 462, the sliver end 140 is further conveyed by the supply roller in the direction of the spinning device.

[0077] Specifically, the precompactor 445 can prepare sliver 135 for pickup in the feed section 462 of the spinning station 465. The pickup direction of the feed section 462 of the spinning station 465 can be specifically antiparallel to the orientation direction of the sliver 135 or the sliver end 140. For this purpose, specifically, a fold occurs in the sliver 135 or the sliver end 140 when transferred to the feed section 462 of the spinning station 465. In other words, the feeder unit 300 is designed to perform a movement 365, specifically a rotational movement, to transfer the sliver 135, specifically the sliver end 140, to the pickup section 460 of the precompactor 445 and / or the feed section 462 of the spinning station 465, wherein the sliver 135, specifically the sliver end 140, experiences curvature when transferred to the feed section 462 of the spinning station 465.

[0078] 140 at the end of the strip Figure 3C As shown in the diagram. Specifically, compared to the "normal sliver end" 140, it is a tapered, post-compacted fiber bundle, referred to as the tapered sliver end 140b. For example, as... Figure 3B As shown, after the cutting step, the strip end 140 can "spread out" (widen in a conical shape). Specifically, the diameter and / or radius at the strip end 140 is larger (or at least the same size) than the average strip diameter or the strip diameter at the nozzle 120 of the pick-up unit 110. As a result, it becomes more difficult to pick up the strip end 140 into the feeder unit 300.

[0079] To better prepare strips 135 for the feeder unit 300 and / or the precompactor 445's pick-up section 460, at least one preparation device may be provided, specifically at least one separating nozzle 200, such as... Figure 3A To illustrate by way of example, specifically, the separating nozzle 200 is designed and arranged to pick up the strip end 140 from the pickup unit 110 (for a short time). The strip end 140 can remain connected to the pickup unit 110 and remain attached to the suction nozzle 120 of the pickup unit. Specifically, therefore, no complete transfer occurs in preparation for transferring the strip end 140 to the feeder unit 300.

[0080] Preparation may include at least one of the following functions that can be performed by the preparation device (and are accordingly understood as steps of the associated method): The end 140 of the previous strip is cut off, specifically by suction via the suction device of the feeder unit 300, to cut or sever the end of the strip 135. As a result, the strip is cut or slit in such a way that a new strip end 140a is formed. As a result, impurities or damage can be removed, and a clean, undamaged strip end 140a can be provided for other process steps.

[0081] exist Figure 3AThe schematic diagram of the detailed view shows an exemplary separating nozzle 200. The separating nozzle 200 is arranged together with the nozzle body 220 in the nozzle assembly 210. Figure 4 An exemplary embodiment of an isolating vortex nozzle 205 is shown, which can be used as a separating nozzle 200 in a nozzle body 220. For example, a sleeve 230 is fitted to the nozzle body 220 by means of a screw 270. The vortex nozzle 205 may have a cavity 240 for picking up the end 140 of a strip.

[0082] For example Figure 4 As shown, a pressurized fluid nozzle 280 may be formed in the cavity 240, and this pressurized fluid nozzle may be connected to a pressurized fluid source (not shown) via an orifice 282 in the outer wall 284 of the nozzle body 220. This can be achieved by inserting the nozzle body 220 into the nozzle assembly 210. Specifically, the pressurized fluid nozzle 280 is designed and arranged to introduce pressurized fluid or a pressurized fluid flow at an angle relative to the inner wall of the cavity 240. Specifically, a vortex of pressurized fluid is formed, which may move around the strip end 140 to sharpen or separate the strip end, as described elsewhere.

[0083] Specifically, the nozzle body 220 may have a suction section 260. This suction section can create laminar flow in the cavity 240 to draw the strip end 140 into the cavity 240. The edge 286 may be designed to discharge laminar flow from the surrounding area as vortex-free as possible, or to discharge vortices into the surrounding area as vortex-free as possible. A groove 288 may be formed and arranged to arrange and screw a sleeve 230 onto the nozzle assembly 210 to arrange and secure an insertable vortex nozzle 205 in the nozzle body 220. A pressurized fluid nozzle 280 may be incorporated into or arranged in a surface structure 289 to support vortex formation and support pressurized fluid flow into the cavity 240. Specifically, the surface structure 289 itself may extend in a vortex shape within the cavity 240.

[0084] like Figures 3A to 3C As shown, the sliver end 140 can be formed from individual fibers 130. This sliver end 140 and its fibers 130 can be guided into the cavity 240, or can be drawn into the cavity 240 by suction in the suction direction 350 (see...). Figure 2 The suction can be adjusted to be strong enough that the fiber 130 separates at the point between the suction section 310 of the feeder unit 300 and the suction nozzle 120 of the pickup unit 110 (for the pickup unit 110, this refers to the nozzle, but other holders for picking up the sliver 135 can also be provided accordingly). As a result, a new sliver end 140a can be formed. The sliver 135 is held on the pickup unit 110, specifically using a corresponding strong reverse suction. The cut fiber material (not shown) is conveyed away, specifically via the waste pipe 250 (see [reference to other pipes]). Figure 2 or Figure 9 ).

[0085] Alternatively or additionally, specifically after the cutting 520 of the old sliver end 140, the sliver end 140 may be temporarily sharpened 530 to form a sharpened sliver end 140b. In addition to the suction section 260, pressurized fluid nozzles 280 may also be provided in the cavity 240. Specifically, these pressurized fluid nozzles 280 may be arranged and oriented to generate rotating pressurized fluid screws within the cavity 240. Due to the rotation of the pressurized fluid that may be induced in this way, the fiber 130 may be arranged conically in the suction direction (even without suction; in the direction of the rear of the cavity 240), and the sliver end 140 may taper conically toward the sharpened sliver end 140b. The rotation of the pressurized fluid may also cause the fibers 130 to twist relative to each other, which may increase the stability of the sliver end 140. Compressed air, dry air, and / or nitrogen, and mixtures thereof, may be used as the pressurized fluid.

[0086] As previously mentioned elsewhere Figure 3B A new strip is shown as the end 140 of the strip, which can be temporarily reinserted into the cavity 240 after cutting (further separation can be omitted to save material if only minor damage is caused), so as to create compression and twisting of the fiber 130 toward the tapered end 140 of the strip, such as... Figure 3C As shown, the sharpened strip end 140b extends from... Figure 3C The cavity 240 in the middle was removed.

[0087] Figure 5 An embodiment of pickup unit 110 is shown, which is arranged on base plate 185 and has a swivel suspension 170 so as to be reversibly pivotable between two end positions in the pivot direction 190. Figure 5 The orientation shown can be referred to as the transfer position because the orientation direction 180 can be parallel to the main suction direction 350. Specifically, the pickup unit 110 is firmly resting against the stop 155 to stabilize the position.

[0088] Conversely, a pickup position (not shown) may be provided for picking up strip 135 from strip 630 which may be specifically arranged below workstation 620, using which pickup unit 110 may be specifically oriented generally downward, specifically vertically downward.

[0089] The pickup unit 110 may include a negative pressure sensor 160, which is specifically designed and arranged to perform strip monitoring. The negative pressure sensor 160 is designed and arranged to monitor the negative pressure in the nozzle 120 of the pickup unit 110 in order to initiate further strip searching based on a threshold. As a result, the pickup unit 110 can determine whether a strip 135 has been picked up, whether a strip 135 has been lost, or whether the search should continue.

[0090] Figure 6 A holding device 400a is shown on the pick-up section 460 of the precompactor 445. The holding device 400a is provided for the strip 135. Specifically, the holding device 400a has a placement structure 420. (As shown...) Figure 6 As shown, this placement structure can specifically be a placement hook. Alternatively, placement holes or other structures capable of at least partially placing the strip 135 may also be provided. Furthermore, the placement structure 420 allows for limiting the movement of the strip 135 laterally to the machine (lateral direction), i.e., movement outside the plane of the sheet, thereby potentially limiting the tension on the strip 135. The tension can be caused by gravity on one hand, and by movement on the other. The placement structure 420 can be arranged on a plate-like support element formed as a front plate 440 via an anchoring structure 430. Alternatively, the placement structure can be a one-piece component that may also include a guide structure 410. According to this exemplary embodiment, the anchoring structure 430 is formed of a rod-like support element that extends from the front plate 440 to the placement structure 420 in the strip conveying direction. The anchoring structure 430 can be fastened to the front plate 440 or integrally formed with the front plate from the same material.

[0091] Additionally or alternatively, a guide structure 410 may be provided, which may also form a sliver guide 446 from the precompactor 445 to the cover plate. This restricts the movement of the sliver 135 along the textile machine length direction (longitudinal direction; alternatively, the direction adjacent to the workstation) from the front end to the rear end. Specifically, the sliver 135 has been inserted into the holding device 400a before being transferred from the feeder unit 300 to the pick-up section 460 of the precompactor 445.

[0092] Figure 7An exemplary embodiment of a cylindrical tube 720 is shown, having a tube edge 710 that serves as the upper boundary of the wall of the cylindrical tube 720. This wall may form an outer surface 715 and an inner surface 725 of the cylindrical tube. A strip 135 (not shown here) may be inserted into the cylindrical tube 720, specifically in a helical shape. As described elsewhere, the strip 135 may be threaded into a strip guide 446 in the form of a pick-up section 460 of a precompactor 445. As described in detail elsewhere, a holding device 400a may be arranged on the precompactor 445 to support the strip 135 for precompaction. A triangle may be formed between the pick-up section 460, the lower point in the cylindrical tube 720, and the outer radius point of the pick-up strip 135, the longest side of which simulates the path of the strip 135 into the precompactor 445. A triangle may also form between the support area on the holding device 400a and the lower point in the sliver can 720, as well as at the outer radius of the point passing through the support area and picking up the sliver 135. The angle within the support area on the holding device 400a may become larger, which is why the sliver 135 may slip off the holding device 400a. This can lead to tearing of the sliver 135, specifically from the spinning station 465, which can cause termination of the spinning process.

[0093] Figure 7An RFID tag 632, containing readable information about the sliver material deposited in the sliver can 630, is also shown. A readout unit (not shown) for reading information from the RFID tag 632 is arranged on the sliver feeder 100. The readout unit is designed to provide the read 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 from them, to which the read information is transmitted for evaluation, and the evaluation unit can evaluate the readout information transmitted in any case. The stored and readable information can be information about the sliver material deposited in the sliver can 630, which has been allocated to the workstation 620 for processing. Reading this information by the readout unit and providing it to the evaluation unit makes it possible to check whether the correct sliver material has been allocated to the workstation 620 for producing a predetermined thread with a defined quality, for which material is required for this particular sliver. The evaluation unit is preferably communicatively connected to a control and / or regulation unit (not shown) that controls the sliver feeder 100 in a defined manner. In this way, when evaluating whether incorrect or faulty sliver material for producing a predetermined yarn has been allocated to workstation 620 from sliver can 630, the evaluation unit of the control and / or regulation unit can provide corresponding information. Furthermore, the control and / or regulation unit is specifically designed to control the sliver feeder 100 in consideration of this information, such that the sliver feeder 100 does not undertake the operation of feeding sliver 135 from sliver can 630 to spinning station 465 of workstation 620. In this way, workstation 620 is prevented from processing incorrect or faulty fiber material to produce the predetermined yarn, thereby minimizing waste and erroneous production.

[0094] Figures 8A and 8B illustrate an embodiment of another holding device 400b on the precompactor 445, wherein the other holding device 400b is... Figure 6 The difference with respect to the holding device 400a shown is that the other holding device 400b can be at least partially and at least temporarily closed. Holding device 400a, together with the other holding device 400b, can in each case be detachably fastened to the support frame of the textile machine 600 or the workstation 620 of the textile machine 600 via locking devices 405, 415. As a result, various embodiments of the described holding devices 400a, 400b can be designed to be interchangeable with each other. Figure 8A shows a side view of the other holding device 400b on a precompactor 445 having a pick-up section 460; Figure 8B shows a front view.

[0095] Specifically, the placement structure 420 is formed with a joint 425 to allow the blocking device 435 to be rotatably arranged around the joint. In one state, the blocking device 435 can restrict the lateral movement of the guided strip 135 to the side (in the front view). As a result, the strip 135 can specifically no longer slide laterally from the support area of ​​the other holding device 400b. The feeder unit 300 and / or the strip 135 can establish contact with the blocking device 435 during threading, wherein the feeder unit 300 and / or the strip 135 carried by the feeder unit 300 can allow the blocking device 435 to rotate around the joint 425, wherein the distance between the blocking device 435 and the guide structure 410 can be increased to thread the strip 135 into the other holding device 400b and the precompactor 445. After the strip 135 is released by the feeder unit 300 after threading, the blocking device 435 can return to its initial position (as shown in Figures 8A and 8B), specifically by automatically returning via a return spring arranged in the connector 425 to block the support area. As a result, the strip 135 is prevented from slipping, specifically when using the cylindrical strip tube 720.

[0096] Figure 9 A schematic diagram of an exemplary embodiment of service unit 900 is shown. Figure 1A The cover 612 shown is not shown to provide a deeper understanding of the structure behind these covers. Specifically, the service unit 900 has two legs 610 and a connecting structure 448 on which the legs 610 are arranged. A U-shape can be formed. Also, as described in detail elsewhere, the strip feeder 100 is arranged below the connecting structure 448. Specifically, the aforementioned structure, including the suction tube 150, the stop 155, and the nozzle 120, is arranged on one side of the legs, while the preparation device, specifically having a vortex nozzle 205 (specifically designed as a separating nozzle 200), is arranged together with the nozzle body 220 on the other side of the legs. Their functions and structures have been described elsewhere, and these annotations are referenced herein.

[0097] The cavity 240 of the vortex nozzle 205 is specifically connected to the waste pipe 250 via a suction section 260. Specifically, this cavity is connected via a pipe system 450 to a flow section 915 in the support leg 610 via an inlet opening 275. The inlet opening 275 is specifically arranged in a partition wall 278. Specifically, the partition wall 278 separates the flow section 915 in the support leg 610. Specifically, the flow section 915 is designed to guide the flow between the inlet opening 275 and the exhaust device 920. Specifically, a filter 950 may be arranged in the flow section 915 such that the flow guided by the flow section 915 penetrates the filter to clean fibers and fiber debris from the flowing fluid. The filter 950 can be inserted into a filter holder 958 via a slide-in unit 955 so that the filter can be removed and thus replaced. The slide-in unit 955 can be inserted into the filter 950 at an angle between 20° and 70°, more specifically between 35° and 55°, and more specifically at 45° relative to the main flow direction and / or relative to the tangential direction of the support leg 610.

[0098] Figure 10 A method 500 for picking up slivers in a textile machine 600 is schematically illustrated. Method 500 may include the step of picking up sliver 135 510 via pick-up unit 110, as described in detail elsewhere. Method 500 may include the step of transferring sliver 135, specifically sliver end 140, from pick-up unit 110 540 to feeder unit 300, as described in detail elsewhere. The method may include the step of transferring sliver 135, specifically sliver end 140, from feeder unit 300 540 to feed section 462 of spinning station 465 and / or pick-up section 460 of precompactor 445, as described in detail elsewhere.

[0099] Method 500 may include a stripe monitoring step. Negative pressure sensor 160 may monitor negative pressure and initiate further stripe searching based on a threshold, as described in detail elsewhere, see [link to details]. Figure 5 .

[0100] Method 500 may include step 520 of cutting off the previous strip end 140 to form a new strip end 140a, as previously referenced. Figures 3A to 3C As described. The method may include step 530 of sharpening the strip end 140 to form a sharpened strip end 140b, as referenced. Figure 3C Detailed description.

[0101] Independent of the previous description of method 500, method 500 may be provided, which may include the step of cutting off the previous strip end 140 to form a new strip end 140a, as previously referenced. Figures 3A to 3C As described. Method 500 may include step 530 of sharpening the strip end 140 to form a sharpened strip end 140b, as referenced. Figure 3C Detailed description.

[0102] Method 500 may also include the step of inserting into holding devices 400a, 400b, specifically holding device 400a, as shown in reference. Figure 6 As described. The strip 135 used for transferring 540 to the feeding section 462 of the spinning station 465 and / or the pick-up section 460 of the precompactor 445 can be placed on the placement structure 420 of the holding device 400a, as referenced. Figure 6 As described. Alternatively or additionally, the strip 135 may be inserted into the guide structure 410 of the retaining device 400a, as described in the reference. Figure 6 As described.

[0103] As in Figure 1A and Figure 1B The textile machine 600, as illustrated by way of example and described relative to these figures, may include, as referenced... Figure 2 The described strip feeder 100. Furthermore, the textile machine 600 can be designed and configured to perform the reference. Figure 10 The method described.

[0104] Figure 11A An exemplary structural image of an embodiment of the pickup unit 110 in pickup step 510 is shown (see also) Figure 10 (Exemplary schematic diagram of method 500). Specifically, strips 135 stored in strip tube 630 are picked up. Specifically, strip tube 630 is arranged in strip tube region 1100. Strip tube 630 may have a strip tube edge 1110 located between the inner wall 1120 and the outer wall 1115 of the strip tube. Specifically, strips 135 may be placed on the strip tube edge 1110. Specifically, the suction tube 150 of the pickup unit 110 is pointed downward to pick up strips 135. Suction may be formed via the nozzle 120 of the pickup unit 110 to draw in strips 135.

[0105] exist Figure 11B The diagram illustrates a preparation step, as an exemplary structural embodiment, in which the cutting 520 of the strip end 140 is performed. In this preparation step, the pickup unit 110 is moved upwards to the stop 155, reaching a position specifically horizontal. The pickup unit 110 can then move toward the preparation device described elsewhere, specifically the vortex nozzle 205 and / or the separation nozzle 200, until the suction in the suction section 260 of the cavity 240 of the vortex nozzle 205 draws the strip end 140 in. This results in the cutting of the strip end 140. As a result, a new strip end 140a can be formed, wherein strip residue 131 is specifically retained in the cavity 240 and can be removed through it.

[0106] The cutting 520 of the strip end 140 specifically occurs by a suction force pulling a portion of the strip end 140 into the cavity 240, while the pickup unit 110 can be further moved away from the vortex nozzle 205 in a particularly horizontal position. The strip 135 is separated in the region of the strip end 140. As a result, a new strip end 140a can be formed, such as Figure 11C As shown. Strip residue 131 may remain in cavity 240. Specifically, this strip residue 131 may be processed via piping system 450, which is connected in communication with cavity 240. Waste pipe 250 may also be formed. See reference... Figure 9 As described, the exhaust device 920 can also be operated to treat strip residue 131 and to apply negative pressure to form a suction.

[0107] exist Figure 11D The diagram shows step 530 of the sharpening method as an exemplary structural embodiment. Then, the feeder unit 110 can be moved rearward toward the preparation device so that the (new) strip end 140a is inserted into the cavity 240 by suction from the suction section 260 of the vortex nozzle 205 (see [reference]). Figure 4 As described elsewhere, the pressurized fluid vortex in the vortex nozzle 205 causes the strip tip 140 to be sharpened into a sharpened strip tip 140b.

[0108] exist Figure 11E The method steps for peeling the sharpened strip end 140b are shown as an exemplary structural embodiment. Then, the movable feeder unit 110 can be moved away from the preparation device again to remove the sharpened strip end 140b from the cavity 240. Specifically, the feeder unit 300 can be moved in front of the sharpened strip end 140b to draw in the sharpened strip end 140b by suction. When the strip 135 is transferred to the pickup device 460, the rotating mechanism 480 can move the feeder unit 300, as... Figure 11F As described in the document. The diameter of the suction section 310 of the feeder unit 300 can be smaller than the diameter of the suction section 310 of the pickup unit 110, which can save installation space.

[0109] Figure 11FA feeder unit 300 is shown arranged in a transfer position. A rotating mechanism 480 may be formed by assembly 1140, which can perform approximately 180° rotation of the object at joint 1130. The rotation can be between 100° and 200°, specifically between 150° and 190°. The feeder unit 300 may be arranged on assembly 1140 via joint 1155 so that the feeder unit 300 can also be moved. It may be specified that the feeder unit 300 can move in coordination with assembly 1140. As a result, coordinated movement around the aforementioned angle and / or angle range is achieved. In an embodiment, it may also be specified that each of the two devices can move by a corresponding angle and / or angle range.

[0110] Specifically, the feeder unit 300 is connected to the suction line 1150. As a result, a suction flow can be achieved at the suction section 310 of the feeder unit 300, thereby allowing the strip 140 to be connected to the feeder unit 300, as described elsewhere.

[0111] exist Figure 11F Specifically, a strip 135 is shown being threaded through a strip canister 630, which is designed as a rectangular strip canister. After the feeder unit 300 takes over the strip 135 from the pick-up unit 110, the strip 135 can be threaded into the pick-up device 460, which forms a strip guide 446 in the precompactor 445.

[0112] The term "strip" specifically refers to an optional feature of the present invention. Therefore, there are also improvements and / or exemplary embodiments of the present invention that additionally or alternatively have one or more corresponding features.

[0113] From the combination of features disclosed in the current context, by resolving the structural and / or functional relationships that may exist between features, and in combination with other features, separate features can also be adopted and used as needed.

[0114] List of reference numerals

[0115] 100 strip feeder

[0116] 110 Pickup Unit

[0117] 120 suction nozzle

[0118] 130 fiber

[0119] 131 strips of residue

[0120] 135 strips

[0121] 140 strips at the end

[0122] 140a The newly formed strip end after the previous strip end is cut off

[0123] 140b Sharpened strip tip

[0124] 150 suction tubes

[0125] 155 stop

[0126] 160 negative pressure sensor

[0127] 170 Rotating Suspension

[0128] 180 Maintain Orientation

[0129] 185 base plate

[0130] 190 Pivot Direction

[0131] 200 Separation Nozzle

[0132] 205 Vortex Nozzle

[0133] 210 Nozzle Assembly

[0134] 220 Nozzle Body

[0135] 230 sleeve

[0136] 240 cavity

[0137] 250 waste pipes

[0138] 260 suction section

[0139] 270 screws

[0140] 275 Entrance opening

[0141] 278 partition wall

[0142] 280 Pressurized Fluid Nozzle

[0143] 282 orifice

[0144] 284 outer wall

[0145] 286 Edge

[0146] 288 Grooves

[0147] 289 Surface structural components

[0148] 290 screws

[0149] 300 feeder unit

[0150] 310 Suction Section

[0151] 320 suction tube

[0152] 340 Feeder Unit Retainer

[0153] 350 (Main) Suction Direction

[0154] 360° pivot arm

[0155] 365 Mobile

[0156] 400a Holding Equipment

[0157] 400b Another holding device

[0158] 405 Locking Device

[0159] 410 Bootstrap Structure

[0160] 415 Locking Device

[0161] 420 Placement Structure

[0162] 425 connector

[0163] 430 Anchorage Structure

[0164] 435 Barrier Equipment

[0165] 440 front panel

[0166] 445 Pre-compactor

[0167] 446-bar guide

[0168] 448 Connection Structure

[0169] 450 pipe system

[0170] Pipe sections 452, 454, and 456

[0171] 460 Pre-compactor pickup section

[0172] Feeding section of spinning station 462

[0173] 465 Spinning Station

[0174] 480° Rotating Mechanism

[0175] 500 methods

[0176] 510 Pick up the strips from the tube.

[0177] 520 Suction and cut-off of fuse / strip end

[0178] 525. Trim edges to shorten the image.

[0179] 530 Sharpened strip end

[0180] 540 Transfer the strip to the pick-up section of the precompactor.

[0181] 600 textile machine

[0182] 610 outriggers

[0183] 612 cover

[0184] 614 Connection Structure

[0185] 620 workstation

[0186] 630 strips

[0187] 632 RFID

[0188] 640 Observe the groove

[0189] 642 Observation Window

[0190] 710 Edge of cylindrical strip

[0191] 715 Outer surface of cylindrical bar

[0192] 720 cylindrical tube

[0193] 725 Inner surface of cylindrical bar

[0194] 800 spool winding

[0195] 810 Cross-wound bobbin

[0196] 900 service unit

[0197] 910 filter points

[0198] 915 Flow Section

[0199] 920 Exhaust Equipment

[0200] 950 filter

[0201] 955 Slide-in Unit

[0202] 958 Filter Retainer

[0203] 1100 strip area

[0204] 1110 Strip edge

[0205] 1115 Outer wall of the bar canister

[0206] 1120 inner wall of the tube

[0207] 1130 connector

[0208] 1140 components

[0209] 1150 suction line

[0210] 1155 connector

Claims

1. A sliver feeder (100) for a textile machine (600), said sliver feeder having: - At least one pickup unit (110); and - At least one feeder unit (300); Its features are, The pickup unit (110) is designed and arranged to pick up strips (135) and transfer the strips to the feeder unit (300), wherein the feeder unit (300) has a take-up section and is designed and arranged to transfer the strips (135) to the strip guide (446). The feeder unit (300) is designed to take strips (135) from the pickup unit (110) at one station, wherein the take-up section of the feeder unit (300) is designed as a suction section (310) and oriented parallel to the holding orientation (180) of the pickup unit (110) in order to suck up the strips (135). The feeder unit (300) is designed to perform movement to transfer the sliver (135) to the sliver guide (446) or to the feeding section (462) of the spinning station (465), wherein the sliver (135) experiences curvature during the transfer.

2. The strip feeder (100) according to claim 1, characterized in that, At least one preparation device is designed and arranged to pick up the strip end (140) from the pickup unit (110) and prepare to transfer the strip end to the feeder unit (300), wherein at least one of the following functions can be performed by the preparation device: - Cut off (520) the end (140) of the strip to form a new end (140a); or - The end of the strip (140) is sharpened (530) to form a sharpened end of the strip (140b).

3. The strip feeder (100) according to claim 1 or 2, characterized in that, The pickup unit (110) and / or the feeder unit (300) have a negative pressure sensor (160) for monitoring the strips, wherein the negative pressure sensor (160) is designed and arranged to monitor the negative pressure in the pickup unit (110) or the feeder unit (300) in order to initiate further strip search based on a threshold.

4. The strip feeder (100) according to claim 1 or 2, characterized in that, A retaining device (400a, 400b) is provided for the strip (135), wherein the retaining device (400a, 400b) includes at least one of the following: - Placement structure (420); -Guide structure (410); and - At least partially movable blocking device (435), said at least partially movable blocking device being arranged and designed such that in a first state, the placement structure (420) is blocked from removing the strip (135), and in a second state, the placement structure (420) is accessible for inserting the strip (135). The feeder unit (300) is designed to insert the strip (135) into the strip guide (446) via the blocking device (435) for transferring the strip (135) from the feeder unit (300) to the placement structure (420).

5. The strip feeder (100) according to claim 1 or 2, characterized in that, The picking unit (110) is designed and arranged to pick up the sliver (135) from the sliver can of the textile machine (600).

6. The strip feeder (100) according to claim 1 or 2, characterized in that, The feeder unit (300) is designed and arranged to transfer the strip (135) to the pick-up section (460) of the precompactor (445).

7. The strip feeder (100) according to claim 1 or 2, characterized in that, The suction section (310) of the feeder unit (300) draws in the strip (135) by directly connecting it to the strip (135) or the end of the strip (140).

8. The strip feeder (100) according to claim 1 or 2, characterized in that, The strip (135) undergoes curvature as it is transferred to the feeding section (462) of the spinning station (465).

9. The strip feeder (100) according to claim 1 or 2, characterized in that, The strip (135) undergoes curvature when it is transferred to the rotor or air-jet spinning station.

10. The strip feeder (100) according to claim 2, characterized in that, The preparation device is a vortex nozzle (205).

11. The strip feeder (100) according to claim 2, characterized in that, The preparation device is a separation nozzle (200).

12. The strip feeder (100) according to claim 4, characterized in that, The placement structure (420) is a placement hook or a placement eyelet.

13. The strip feeder (100) according to claim 4, characterized in that, The holding devices (400a, 400b) are arranged on the pick-up section (460) of the precompactor (445).

14. A nozzle body (220) formed for use in a strip feeder (100) according to any one of the preceding claims, wherein, The nozzle body (220) includes a vortex nozzle (205), characterized in that the vortex nozzle (205) is formed and arranged in the nozzle body (220), or wherein the vortex nozzle (205) is arranged in the nozzle body (220) to pick up the end of a strip (140) from the pick-up unit (110) of the strip feeder (100) and prepare to transfer the end of the strip to the feeder unit (300) of the strip feeder (100), wherein the vortex nozzle (205) has the function of... At least one pressurized fluid nozzle (280) is provided in the cavity (240) of the vortex nozzle (205) for feeding pressurized fluid flow, wherein the pressurized fluid nozzle (280) is designed and arranged to generate pressurized fluid flow vortices in the cavity (240) by means of the pressurized fluid flow feeding, thereby picking up the strip end (140) and cutting it off (520) to form a new strip end (140a); or the strip end (140) is sharpened (530) to form a sharpened strip end (140b).

15. A service unit (900) having a strip feeder (100) according to any one of claims 1 to 13, characterized in that, A pickup unit (110) for picking up a segment of the strip (135) and an introduction device having a suction segment (260) are arranged on the service unit (900), the pickup unit and the introduction device being distributed to each other such that the strip segment having the strip (135) picked up by the pickup unit (110) at the end (140) of the strip is at least temporarily and at least partially sucked into the suction segment (260) of the introduction device. The flow section (915) is arranged in the service unit (900) downstream of the suction section (260) of the inlet device and is designed to form a suction flow at the suction section (260) of the inlet device, wherein at least one filter (950) is arranged in the flow section (915).

16. The service unit (900) according to claim 15, characterized in that, The filter (950) is replaceable.

17. A method (500) for picking up slivers in a textile machine (600), characterized by the following steps: - Pick up (510) segments of strip (135) by picking unit (110); - Transfer the strip (135) from the pickup unit (110) to the feeder unit (300). - Transfer the strip (135) from the feeder unit (300) (540) to the pick-up section (460) of the precompactor (445). The method (500) further includes the following steps: - The strip (135) is inserted into the holding device (400a) of the strip feeder (100) according to claim 4, wherein the strip (135) is placed on the placement structure (420) of the holding device (400) and / or inserted into the guide structure (410) of the holding device (400a) so as to be transferred (540) to the strip guide (446).

18. The method (500) according to claim 17, characterized by the following steps: -Strip monitoring, among which, The negative pressure sensor (160) monitors the negative pressure in the pickup unit (110) and / or the feeder unit (300) and initiates further strip search based on a threshold.

19. The method (500) according to claim 17 or 18, characterized in that at least one step in the following steps: - Cut off (520) the end (140) of the strip to form a new end (140a); or - The end of the strip (140) is sharpened (530) to form a sharpened end of the strip (140b).

20. A textile machine (600), characterized in that, The textile machine has at least one of the following devices: - A strip feeder (100) according to any one of claims 1 to 13; - The nozzle body (220) according to claim 14; and - The service unit (900) according to claim 15 or 16; and / or The textile machine (600) is designed and configured to perform the method (500) according to any one of claims 17 to 19.

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