Textile machine with identification of end region of sliver

Abstract

The invention relates to a textile machine with identification of an end region of a sliver for producing a winding bobbin, comprising at least one working unit for spinning a yarn and winding the spun yarn onto the winding bobbin, at least one working unit comprises: a spinning device for spinning a yarn from fibers of a sliver fed to the spinning device; a sliver supply device for supplying a sliver from the spinning bobbin to the spinning device; the yarn cleaner is located at the downstream of the spinning device and used for detecting at least one yarn quality parameter of the spun yarn; and a control device for analyzing the at least one yarn quality parameter. In order to improve the identification and / or calculation of the end of the sliver for the spinning process, the control device is designed and arranged to determine, during analysis, whether a sliver property is present as a basis for the yarn quality parameter, such that the sliver property is an indication of the end region of the sliver in the spinning cylinder.

Description

Technical Field

[0001] This invention relates to a textile machine. It also relates to a method for identifying the end regions of fiber slivers. Furthermore, it relates to a control device. This invention relates to a computer program product. This invention relates to a machine-readable storage medium. This invention relates to a textile machine assembly. Background Technology

[0002] According to existing technology, in textile production machines, also known as textile machinery, the quality or length of fiber slivers is detected and / or preset, defining a specific production quantity of yarn to be manufactured within a specific time frame. This allows for the calculation and control of material production parameters.

[0003] This approach has a number of drawbacks: In the upstream production line, deviations in length and quality are particularly noticeable for all subsequent textile processing steps. Downstream machines in the production chain cannot detect these variations, or can only detect them to a limited extent. Currently, there is no way to correct for this, depending on production conditions. In subsequent production processes, calculations and detections are based on production data corresponding to the inputs. Influences from the machine environment (e.g., operation) can sometimes lead to incorrect calculations and conclusions. In the final stages of production, the detected length and / or quality have no uniform effect on the supplied material. Problems with material supply, fiber breakage, roving entanglement requiring manual removal by the operator, and imperfections caused by the machine environment cannot be detected using traditional spindle-based measurement methods to identify complete emptying of the supplied bobbins. The consequences of such incorrect identification and / or miscalculation of the remaining supplied material are that material remains on the machine and must be resupplyed to the upstream production process. Furthermore, the calculated supply of material may be exhausted when it is actually no longer available. This can lead to production unit downtime and production losses. Summary of the Invention

[0004] Therefore, the objective of this invention is to improve the identification and / or calculation of the ends of fiber slivers used in the spinning process.

[0005] This task is solved by a textile machine having the features of the first aspect of the invention. This task is also solved by a method having the features of the ninth aspect of the invention. This task is also solved by a control device having the features of the tenth aspect of the invention. This task is particularly solved by a computer program product having the features of the eleventh aspect of the invention. This task is also solved by a machine-readable storage medium having the features of the twelfth aspect of the invention. This task is solved by a textile machine assembly having the features of the thirteenth aspect of the invention.

[0006] The advantages, definitions, and features described in relation to textile machinery may also describe at least one of methods, control devices, machine-readable storage media, computer program products, and textile machinery assemblies. Among these, advantages and definitions, but especially individual features, may be combined with other advantages, definitions, and, in particular, features described accordingly below, within their respective contexts.

[0007] One type of textile machine can be configured to manufacture a winding bobbin. The textile machine may have at least one working unit for spinning yarn and winding the spun yarn onto the winding bobbin. The at least one working unit may have a spinning device for spinning yarn from fibers of a sliver supplied to the spinning device. The at least one working unit may have a sliver feeding device for feeding a sliver from the spinning bobbin to the spinning device. The at least one working unit may have a yarn clearer located downstream of the spinning device and configured to detect at least one yarn quality parameter of the spun yarn.

[0008] The control device can be configured and set up to analyze the at least one yarn quality parameter. The control device can be configured to determine, during analysis, whether a fiber sliver characteristic exists as the basis for the yarn quality parameter, such that the fiber sliver characteristic is an indicator of the end region of the fiber sliver in the spinning cone.

[0009] By using a clearer already installed in the spinning machine based on the spindle, not only can yarn defects be inspected, but the length of precisely spun yarn, especially when wound on a bobbin, can also be measured. Imperfections in the length and / or quality of the supplied material cannot be detected in this way because they are the basis of the machine's calculations. This reduces production interruptions. Until now, the removal of material in the event of a malfunction could not be detected, thus making it impossible to determine the remaining contents or remaining running time of the spinning bobbin. With the construction of the textile machine described here, the emptying of supplied fiber sliver material units can be reliably identified. This unit can be supplied, for example, in the spinning bobbin. This prevents production losses and ensures that the spinning bobbin / unit is not left unemptied.

[0010] The textile machine can be configured as a rotor spinning machine or, optionally, an air spinning machine. Both types of textile machines are specifically designed for processing fiber slivers and thereby enabling the production of spun yarns.

[0011] The working unit can be specifically configured as a spinning-winding-working unit, which can be configured on the one hand for spinning yarn, and on the other hand for winding the spun yarn.

[0012] Spinned yarn specifically refers to yarn that has just been spun and has not yet undergone further processing, which has just been made from fibers by a spinning device. It has not undergone any finishing or treatment and will go directly to the next stage of production, optionally or additionally wound on a winding bobbin so that it can be stored, for example, supplied to further processing steps such as textile processing.

[0013] A yarn clearer, particularly a replaceable component of a textile machine, is constructed and configured to detect yarn quality parameters and remove spun yarn. This can be achieved, for example, by monitoring the yarn's length, thickness, or quality (weight). The yarn clearer can be located downstream of the spinning unit.

[0014] A control device is specifically a component of or connected to a textile machine, which can be used to monitor and control the textile machine, particularly for performing methods described in other sections herein. The textile machine may be equipped with at least one sensor device, or optionally multiple, particularly different, sensor devices, which can detect yarn quality parameters and transmit them to the control device. A yarn clearer can be used as a corresponding sensor device. The control device is particularly capable of analyzing the data transmitted by the sensor device or multiple sensor devices to determine whether a sliver characteristic exists as the basis for the yarn quality parameter, indicating that the end region of the sliver has been reached to form the analyzed spun yarn, and therefore the spinning bobbin is expected to idle.

[0015] Fiber sliver characteristics specifically refer to the properties of a fiber sliver, such as its thickness, elasticity, or strength, which can be translated into properties of the spun yarn. These fiber sliver characteristics can be determined by a yarn clearer in the form of converted yarn quality parameters, and are important for understanding the properties of the end regions of the fiber sliver in the spinning bobbin, but are especially important for being able to identify when the end regions have been reached, so that a new spinning bobbin with new fiber sliver can be fed and / or the spinning device, particularly the associated work unit, can be stopped to prevent the spinning device from idling.

[0016] The term "yarn quality parameters" specifically refers to the various characteristics of yarn that can be monitored to determine its quality. These can be, for example, the yarn's length, thickness, or diameter, mass, or hairiness. Analysis of these parameters allows control devices to detect yarn quality characteristics as yarn quality parameters and determine whether there are end regions of the fiber sliver in the spinning bobbin.

[0017] According to a preferred aspect, the control device can be configured and set to perform an action when an analysis determines that the fiber sliver characteristics indicate the end region of the fiber sliver in the spinning bobbin. The textile machine may be equipped with or coupled with a control device configured and set to perform a specific action when an analysis determines that the fiber sliver characteristics indicate the end region of the fiber sliver in the spinning bobbin. This could, for example, be terminating the spinning process so that further processing of the fiber sliver material is no longer possible. It could also include issuing a warning signal or replacing the spinning bobbin to ensure that the material is properly handled. This prevents the spinning device from potentially running idle.

[0018] This control device is particularly capable of identifying the end regions of the fiber sliver in the spinning bobbin using various sensors or sensor devices and data sources. For this purpose, yarn quality parameters and fiber sliver characteristics based thereon can be used, for example. When the control device identifies the end region of the fiber sliver, it can automatically execute its defined actions to ensure that the fiber sliver material is handled correctly, especially preventing the spinning bobbin from spinning dry, thereby allowing the spinning process to proceed normally.

[0019] According to a preferred aspect, the action may be at least one of the following: stopping the working unit, optionally or additionally issuing a warning signal.

[0020] The textile machine may be equipped with a control device that, upon analysis determining that the fiber sliver characteristics indicate the end region of the fiber sliver in the spinning bobbin, performs a specific action, as described elsewhere herein. According to a preferred aspect, this action may include at least one of the following: stopping the working unit: when the control device identifies the end region of the fiber sliver, it may automatically stop the working unit, particularly the spinning device and the winding device for producing the winding bobbin, so that further processing of the material ceases. This is particularly important when the end region of the fiber sliver has been reached and further processing of the fiber sliver material should not be necessary.

[0021] A warning signal can be issued: when the control device identifies the end area of ​​the fiber sliver, it can optionally or additionally issue a warning signal. This can be achieved through a display on the machine monitor, an audible warning device, or other means. This warning signal is specifically used to remind the operator that the fiber sliver material is running low because spinning has already occurred in the end area, and therefore replacement may be needed soon. Thus, the operator can manually, or a service unit (such as an AGV) can automatically, install a spinning bobbin with a new fiber sliver to allow the spinning process to continue.

[0022] By using control devices with these functions, the textile machine can operate more efficiently. Furthermore, it ensures that the sliver material is properly handled according to its precise supply in the spinning bobbin, as there is no idling or need for re-splitting, for example. This reduces or completely prevents unevenness in the yarn.

[0023] According to a preferred aspect, the end region can be generated by the activation of an adjustable drafting device of a filling machine for filling a spinning bobbin.

[0024] The end region of the fiber sliver can be generated by the activation of an adjustable drafting device of a filling machine used to fill a spinning bobbin. The adjustable drafting device is particularly one with controls or regulators to alter and control the drafting of the fibers in the fiber sliver. These controls can be used to highlight the end region of the fiber sliver before it is fed into the spinning bobbin. This can be achieved, in particular, by the end region in the spinning bobbin corresponding to the initial drafting region in the filling machine. However, in some embodiments, the filling machine may also introduce regions in the fiber sliver to, for example, define a first region by which the determination of this region serves as an early warning that a defined length of fiber sliver remains.

[0025] A filling machine is specifically a machine used to draw fibers and fill the spinning bobbin with the fibers used to make yarn on a spinning machine. These machines can come in different forms and sizes.

[0026] According to a preferred aspect, the filling machine is either a carding machine or a stretcher.

[0027] A carding machine, or combing machine, is a textile machine used particularly in the textile industry to evenly separate and organize fiber bundles into a specific arrangement. The fiber bundles are loosened by feed rollers and fed to a so-called tambourine, a large rotating roller equipped with toothed card cloth. The fiber bundles are captured by the toothed card cloth of the rotating tambourine and conveyed to the upper area of ​​the carding machine. At the top of the tambourine are plates or small roller pairs, which are also equipped with card cloth or flexible hooks. If roller pairs are used, the carding machine can also be called a combing machine. Due to the different directions of rotation and mutual orientation, the card cloth ensures the parallelization of the fibers. The combing intensity depends on the speed difference between the tambourine and the flats or roller pairs, the density of the card cloth, and the distance between the tambourine and the flats or roller pairs. These parameters can be selected according to the type of fiber being combed, as some fibers may be damaged if the combing intensity is too high.

[0028] A drawing frame is a type of textile machine specifically used to divide and organize fiber bundles into a specific arrangement before they can be fed into a spinning cone. The drawing frame is used to prepare fiber slivers, which can then be processed into yarn on a spinning machine. The fiber sliver is specifically drafted by a drafting device. This results in the parallelization of the fibers, thus making the fiber sliver uniform. The fiber sliver can then be fed into a spinning cone and supplied as roving for a textile machine as described herein, to be processed into finished yarn.

[0029] According to a preferred aspect, the yarn clearer optically detects the yarn quality parameter. For this purpose, the yarn clearer may have an optical sensor for detecting the at least one yarn quality parameter.

[0030] A yarn clearer is a device used to remove impurities or defects from yarn. Yarn clearers may also have optical sensors that optically detect yarn quality parameters. These sensors are particularly capable of monitoring yarn quality based on various factors, such as yarn length, thickness, or weight. The sensor specifically sends data to a control unit, which is used to determine whether a sliver characteristic exists as a basis for the yarn quality parameter, and whether the end region of the sliver has been reached. This information is used to prevent the spinning device from running idle. This prevents idle spinning and also inhibits the attempt to splice the yarn. Instead, a new spinning bobbin can be requested.

[0031] According to a preferred aspect, the at least one yarn quality parameter reflects one of the following: the orientation of at least one yarn segment specific to the end region, optionally or additionally, deviation in length, particularly a predefined deviation, optionally or additionally, deviation in diameter, particularly a predefined deviation, and also optionally or additionally, deviation in quality, particularly a predefined deviation.

[0032] A yarn quality parameter is specifically a measurement or quantity used to assess yarn quality. This yarn clearer can optically detect a yarn quality parameter that reflects the orientation of at least one yarn segment characteristic of the end region. This specifically means that the clearer can identify deviations in fiber length that indicate the end region of the fiber sliver. Additionally or optionally, the clearer can detect deviations in yarn diameter and / or mass, particularly predefined deviations. This information is specifically used to prevent the spinning device from idling.

[0033] According to a preferred aspect, the yarn clearer is configured and set to continuously monitor the spun yarn and transmit the resulting yarn quality parameters to a control device. The control device may be configured and set to perform the formation of at least one average value based on the yarn quality parameters transmitted by the clearer from the continuous and uninterrupted monitoring of the spun yarn. Optionally or additionally, the control device may be configured and set to form a reference value within a short defect range. Optionally or additionally, the control device may be configured and set to form a reference value within a long defect range.

[0034] The control device can be constructed and configured to continuously and uninterruptedly monitor the yarn quality parameters transmitted by the clearer, and in the process, at least average them. This means that the control device is able to collect and calculate the yarn quality parameters detected by the clearer to obtain an average image of the spun yarn. Additionally or optionally, the control device can also generate reference values ​​within short-segment defect ranges and / or long-segment defect ranges. This allows the control device to automatically take measures to prevent the spinning unit from idling and to ensure that the sliver material is properly handled until the actual end of the spinning bobbin when deviations occur, such as deviations from the reference values.

[0035] Short-segment defects specifically refer to temporary, sporadic unevenness in the yarn, usually caused by short-term disturbances. Long-segment defects are unevennesses that are usually caused by systematic factors and persist over a longer period of time, or even continuously. Short-segment defects can appear in the range of 1 mm to 640 mm. Long-segment defects can extend beyond 640 mm to a range of 100 m.

[0036] According to a preferred aspect, the fiber strip has a defined length. The yarn clearer can be constructed and configured to measure the yarn length. The yarn clearer can be constructed and configured to transmit the yarn length to a control device so as to include the yarn length in an analysis regarding the presence of an end region.

[0037] Fiber slivers are specifically composed of fibers used in the textile industry, for example, to spin yarn. The fiber sliver can have a defined length, which depends on the textile machine, spinning bobbin, or application. The yarn clearer can be constructed and configured to measure the length of the yarn and thereby infer the length of the fiber sliver upon which it is based. Yarn length detection can be performed by mechanical or optical methods. The yarn clearer can transmit the yarn length to a control device so that it is included in the analysis regarding the presence of end regions in the fiber sliver. Therefore, another degree of freedom can be included in the analysis regarding the presence of end regions.

[0038] By monitoring the yarn length, the control device can automatically determine when the fiber sliver ends and when the fiber sliver material can no longer be used, in conjunction with other yarn quality parameters as described elsewhere. This allows the control device to prevent new splicing attempts on the fiber sliver after the fiber sliver has idled and the spinning device has idled.

[0039] According to one independent aspect, a method for identifying the end region of a fiber sliver in a spinning bobbin of a textile machine can be provided. The textile machine can, in particular, be one described in other sections herein. The method may include the step of spinning yarn in a spinning device of the textile machine. The method may include the step of detecting at least one yarn quality parameter of the spun yarn by means of a clearer located downstream of the spinning device. The method may include the step of analyzing the at least one yarn quality parameter by means of a control device to determine whether there exists a fiber sliver characteristic as the basis for the yarn quality parameter, such that the fiber sliver characteristic is an indicator of the end region of the fiber sliver in the spinning bobbin.

[0040] A method for identifying the end regions of a fiber sliver in a spinning bobbin can be performed using a textile machine as described elsewhere herein. The method specifically includes the steps of spinning yarn in a spinning unit of the textile machine, and detecting at least one yarn quality parameter by a clearer located downstream of the spinning unit. This yarn quality parameter is then analyzed by a control device to determine whether a fiber sliver characteristic serves as the basis for the yarn quality parameter, and whether this is an indication of the end regions of the fiber sliver in the spinning bobbin. This method enables the control device to identify the end regions of the fiber sliver and react accordingly to ensure proper material handling and prevent the spinning unit from idling.

[0041] This method can be described, in particular, by one of the features, advantages, or attributes selected from textile machines, computer program products, control devices, machine-readable storage media, or textile machine assemblies. This is also particularly applicable across categories, i.e., across categories such as apparatus, systems, methods, and applications. Therefore, textile machines, computer program products, control devices, machine-readable storage media, and / or textile machine assemblies can also be described by at least one feature, advantage, or attribute of the method. For readability and brevity, repetition of all these features, advantages, and attributes is omitted.

[0042] According to one independent aspect, a control device can be constructed and configured for performing a method as described in other parts herein in a textile machine.

[0043] The control device can be described, in particular, by one of the features, advantages, or attributes selected from textile machines, computer program products, methods, machine-readable storage media, or textile machine assemblies. This also applies particularly across categories, i.e., across categories such as apparatus, systems, methods, and applications. Therefore, textile machines, computer program products, methods, machine-readable storage media, and / or textile machine assemblies can also be described by at least one feature, advantage, or attribute of the control device. For readability and brevity, repetition of all these features, advantages, and attributes is omitted.

[0044] According to one independent aspect, a computer program product may have machine-readable instructions so that, when executed on a control device as described in other parts herein, it performs a method as described in other parts herein in a textile machine.

[0045] This computer program product can be described specifically by one of the features, advantages, or attributes selected from textile machines, control devices, methods, machine-readable storage media, or textile machine assemblies. This also applies particularly across categories, i.e., across categories such as apparatus, systems, methods, and applications. Therefore, textile machines, control devices, methods, machine-readable storage media, and / or textile machine assemblies can also be described by at least one feature, advantage, or attribute of this computer program product. For readability and brevity, repetition of all these features, advantages, and attributes is omitted.

[0046] According to one independent aspect, a machine-readable storage medium may have a computer program product as described in other parts herein.

[0047] According to a separate aspect, a textile machinery assembly can be constructed. This assembly may have a first textile machine for filling a sliver into at least one spinning bobbin, particularly a carding machine or drawing frame. The assembly may also have a second textile machine, which is one of the textile machines described in other parts herein. The first textile machine may be constructed and configured to impart a sliver characteristic to the sliver, at least at the beginning of the filling process of the at least one spinning bobbin, such that this characteristic can be detected by a yarn clearer during yarn production from the sliver in the second textile machine, thereby enabling the analysis and determination of the sliver's end region by means of a control device (indirectly, i.e., at least indirectly via the yarn clearer).

[0048] The textile machinery assembly can be described, in particular, by one of the features, advantages, or attributes selected from textile machinery, control devices, methods, machine-readable storage media, or computer program products. This also applies particularly across categories, i.e., across categories such as apparatus, systems, methods, and applications. Therefore, textile machinery, control devices, methods, machine-readable storage media, and / or computer program products can also be described by at least one feature, advantage, or attribute of the textile machinery assembly. For readability and brevity, repetition of all these features, advantages, and attributes is omitted. Attached Figure Description

[0049] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings, which are shown schematically and exemplaryly:

[0050] Figure 1A A schematic diagram illustrating an exemplary embodiment of a spinning preparation machine as a filling machine;

[0051] Figure 1B A schematic diagram illustrating an exemplary embodiment of a textile machine; and

[0052] Figure 2 A schematic diagram illustrating an exemplary implementation of the method is shown.

[0053] List of reference numerals

[0054] 1. Spinning preparation machine

[0055] 1a Filling machine

[0056] 2. Unstretched and uncompacted fiber strips

[0057] 3. Adjustable drafting device for spinning preparation machine

[0058] 4. Separation device

[0059] 6. Fiber sliver supply device

[0060] 20. Textile machinery

[0061] 21 working units

[0062] 22 Spinning apparatus

[0063] 24. spun yarn

[0064] 26 Fiber Strips

[0065] 28. Yarn clearer

[0066] 30 Control device

[0067] 32 End Region

[0068] 34 Spinning cones

[0069] 36 Machine-readable storage media

[0070] 38 Computer program products

[0071] 40 Adjustable drafting device for textile machinery

[0072] 42 Conveying direction

[0073] 44. Lateral direction

[0074] 46 Winding Bollard

[0075] 48. Winded yarn

[0076] 100 methods

[0077] 110 Spinning yarn

[0078] 120. Detect at least one yarn quality parameter.

[0079] 130. Analyze at least one yarn quality parameter. Detailed Implementation

[0080] For components and structures that have the same function and / or are of the same type, the same reference numerals are used.

[0081] Figure 1A This diagram illustrates an exemplary embodiment of a spinning preparation machine 1 as a filling machine 1a for a spinning bobbin 34. The filling machine 1a can be a carding machine or a drawing frame. The filling machine 1a can receive undrawn, uncompacted fiber sliver 2 and draw it into a fiber sliver 26 for use in a textile machine 20 via an adjustable drawing device 3, as shown in… Figure 1B As shown in the diagram. Specifically, the activation of the drafting device 3 can result in the fiber sliver 26 being endowed with a fiber sliver characteristic, which may, for example, be present in the end region 32 of the fiber sliver 26. The fiber sliver 26 can be placed in the spinning bobbin 34, with the end region 32 being placed in first, and thus it will be the last to be removed from the spinning bobbin 34 by the spinning machine 20. In an alternative embodiment, the filling machine 1a can be constructed and configured to endow the fiber sliver characteristic in an intermediate region (not shown) so that the control device 30, for example, indicates the remaining amount of fiber sliver 26 when performing a first analysis of the yarn quality parameters generated by such a region. The fiber sliver 26 can be conveyed into the spinning bobbin 34 along the conveying direction 42. A separation device can be provided to separate the fiber sliver 26 when the spinning bobbin 34 is filled.

[0082] Figure 1BA schematic diagram illustrating an exemplary embodiment of a textile machine 20 is shown. This textile machine 20 is specifically configured for manufacturing a winding bobbin 46. The textile machine 20 can be, for example, a rotor spinning machine or an air spinning machine. The textile machine 20 has at least one working unit 21 for spinning yarn 24 and winding the spun yarn 24 onto the winding bobbin 46. Therefore, this working unit 21 can be referred to as a spinning-winding-working unit.

[0083] The at least one working unit 21 has at least one spinning device 22 for spinning yarn 24 from fibers of a sliver 26 supplied to the spinning device 22. The sliver 26 can be supplied to the working unit 21 from a spinning bobbin 34 via a sliver supply device 6 to supply the sliver 26 to the spinning device 22. The sliver 26 can be drafted according to the requirements of the spinning device 22 in an adjustable drafting device 40. In the spinning device 22, the yarn 24 spun from the sliver 26 can be obtained. A yarn clearer 28, which may be located downstream of the spinning device 22, can be configured and set to detect at least one yarn quality parameter of the spun yarn 24.

[0084] A control device 30 can be assigned to the textile machine 20, on which a computer program product 38 can be read from a machine-readable storage medium 36. The control device 30 can be configured and set to analyze the at least one yarn quality parameter. The control device 30 can be configured to determine, during analysis, whether a fiber sliver characteristic exists as the basis for the yarn quality parameter, such that the fiber sliver characteristic is an indication of the end region 32 of the fiber sliver 26 in the spinning bobbin 34.

[0085] The spun yarn 24 can be wound onto a winding bobbin 46 in the transverse direction 44 via a yarn guide device (not shown) after the yarn clearer 28, which is shown here as a cross-winding bobbin, so that it can be stored as wound yarn 48.

[0086] The control device 30 can be configured and set to perform an action when the analysis determines that the fiber characteristics are an indication of the end region 32 of the fiber sliver 26 in the spinning cylinder 34. This action can be at least one of the following: stopping the working unit 21. Optionally or additionally, issuing a warning signal (not shown).

[0087] The fiber sliver characteristics of the end region 32 can be generated by the start-up operation of an adjustable drafting device 3 of a filling machine 1a that fills a spinning bobbin 34, such as in Figure 1A This is shown and described.

[0088] The yarn clearer 28, which detects yarn quality parameters, may have an optical sensor (not shown) to optically detect the yarn quality parameter. This at least one yarn quality parameter may reflect the orientation of at least one yarn segment characteristic of the end region 32. This can be characterized by a combination of short-segment defects and long-segment defects, which may be characteristic of the end region 32 of the fiber sliver 26. Optionally or additionally, deviations in fiber length, particularly predefined deviations, may indicate the end region 32. Optionally or additionally, deviations in yarn diameter, particularly predefined deviations, may indicate the end region 32 of the fiber sliver 26. Optionally or additionally, deviations in yarn quality, particularly predefined deviations, may indicate the end region 32.

[0089] The yarn clearer 28 is specifically constructed and configured for uninterrupted monitoring of the spun yarn 24 and transmitting the resulting yarn quality parameters to the control device 30. The control device 30 can be constructed and configured to, based on the yarn quality parameters transmitted by the clearer 28 from the uninterrupted and continuous monitoring of the spun yarn 24, perform at least one of the following operations: an average value of at least one yarn quality parameter can be generated to determine a characteristic deviation for the yarn 24 spun from the end region 32. Reference values ​​can be generated within short-segment defect ranges and / or long-segment defect ranges. This allows the identification of a yarn segment with defect characteristics, enabling the inference of the presence of the end region 32.

[0090] The fiber sliver 26 has a defined length. The yarn clearer 28 can be configured and set to measure the yarn length, and the yarn clearer 28 can be configured and set to transmit the yarn length to the control device 30 so as to include the yarn length in the analysis regarding the presence of the end region 32. This allows for, for example, a plausibility check to determine whether the identified end region 32 is within the expected range, or whether it is, for example, a previously set intermediate region (not shown) that can infer the remaining length of the fiber sliver 26 in the spinning bobbin 34.

[0091] Alternatively, a textile machinery assembly can be constructed having a first textile machine for filling fiber sliver 26 into at least one spinning bobbin 34, particularly a carding machine or drawing frame, especially as in Figure 1A The first textile machine is shown and described herein. The textile machine assembly may also include a second textile machine, which may be as shown in… Figure 1B The textile machine 20 shown and described herein.

[0092] The first textile machine is specifically constructed and configured to impart a fiber sliver characteristic to the fiber sliver 26 at least at the start of the process of filling the at least one spinning bobbin 34, such that this characteristic can be detected by the yarn clearer 28 during the production of yarn 24 from the fiber sliver 26 in the second textile machine, thereby enabling the end region 32 of the fiber sliver 26 to be analyzed and determined by the control device 30 (indirectly, i.e., via the control device 30 through the analysis of the yarn 24 in the yarn clearer).

[0093] Figure 2 A schematic diagram illustrating an exemplary implementation of method 100 is shown.

[0094] The method 100 can be configured to identify the end region 32 of the fiber sliver 26 in the spinning bobbin 34 of a textile machine 20. The textile machine 20 used can be, in particular, as shown in... Figure 1B The textile machine 20 shown and described herein.

[0095] The method 100 may include step 110 of spinning yarn 24 in spinning device 22 of textile machine 20. The method may include step 120 of detecting at least one yarn quality parameter of the spun yarn 24 via a clearer 28 located downstream of spinning device 22. The method 100 may include step 130 of analyzing the at least one yarn quality parameter via control device 30 to determine whether a sliver characteristic exists as the basis for the yarn quality parameter, such that the sliver characteristic is an indicator of the end region 32 of the sliver 26 in spinning bobbin 34.

[0096] The word "may" specifically indicates optional features of the invention. Therefore, further developments and / or embodiments of the invention also exist, which additionally or optionally have corresponding features.

[0097] If necessary, isolated features may also be extracted from the feature combinations disclosed herein and used in combination with other features to define the subject matter of the invention, provided that any structural and / or functional relationships that may exist between the features are removed.

Claims

1. A textile machine (20) for manufacturing wound bobbins (46), said textile machine (20) comprising: - At least one working unit (21) for spinning yarn (24) and winding the spun yarn (24) onto the winding bobbin (46), wherein the at least one working unit (21) comprises: - Spinning device (22), the spinning device (22) being used to spin the yarn (24) from the fibers of the fiber strip (26) supplied to the spinning device (22); - Fiber sliver supply device (6), the fiber sliver supply device (6) being used to supply the fiber sliver (26) from the spinning bobbin (34) to the spinning device (22); - A yarn clearer (28), located downstream of the spinning device (22) and configured and arranged to detect at least one yarn quality parameter of the spun yarn (24); and - The textile machine (20) includes a control device (30) configured and arranged to analyze the at least one yarn quality parameter. Its features are, The control device (30) is configured and set to determine during analysis whether there exists a fiber strip characteristic as the basis for the yarn quality parameter, such that the fiber strip characteristic is an indication of the end region (32) of the fiber strip (26) in the spinning bobbin (34).

2. The textile machine (20) according to claim 1, characterized in that, The control device (30) is configured and set to perform an action when the analysis determines that the fiber characteristics are an indication of the end region (32) of the fiber (26) in the spinning bobbin (34).

3. The textile machine (20) according to claim 2, characterized in that, The action is at least one of the following: - Stop the work unit (21); or - Issue a warning signal.

4. The textile machine (20) according to any one of the preceding claims, characterized in that, The fiber characteristics of the end region (32) are generated by the start-up operation of the adjustable drafting device (3) of the filling machine (1a) that fills the spinning bobbin (34).

5. The textile machine (20) according to claim 4, characterized in that, The filling machine (1a) is selected from either a carding machine or a drawing frame.

6. The textile machine (20) according to any one of the preceding claims, characterized in that, The at least one yarn quality parameter reflects one of the following: - A specific orientation of at least one yarn segment for the end region (32); - Deviations in length, especially predefined deviations; - Deviation in diameter, especially predefined deviation; or - Deviations in quality, especially predefined deviations.

7. The textile machine (20) according to any one of the preceding claims, characterized in that, The yarn clearer (28) is configured and set to continuously monitor the spun yarn (24) and transmit the resulting yarn quality parameters to the control device (30), wherein the control device (30) is configured and set to perform at least one of the following operations based on the yarn quality parameters transmitted by the yarn clearer (28) from the continuous and uninterrupted monitoring of the spun yarn (24): - Form an average value; - Establish a reference value within the scope of short-segment defects; or - To establish reference values ​​within the range of defects in long segments.

8. The textile machine (20) according to any one of the preceding claims, characterized in that, The fiber strip (26) has a defined length, and wherein the yarn clearer (28) is configured and set to measure the yarn length, and wherein the yarn clearer (28) is configured and set to transmit the yarn length to the control device (30) so as to include the yarn length in the analysis regarding the presence of an end region (32).

9. A method (100) for identifying the end region (32) of a fiber sliver (26) in a spinning bobbin (34) of a textile machine (20), particularly the textile machine (20) according to any one of the preceding claims, the method comprising the steps of: - Yarn (24) is spun (110) in the spinning device (22) of the textile machine (20); - At least one yarn quality parameter of the yarn (24) spun by the yarn clearer (28) located downstream of the spinning device (22) is detected (120); - The control device (30) analyzes (130) the at least one yarn quality parameter to determine whether there is a fiber strip characteristic as the basis of the yarn quality parameter, such that the fiber strip characteristic is an indication of the end region (32) of the fiber strip (26) in the spinning bobbin (34).

10. A control device (30) configured and arranged to perform the method (100) according to claim 9 in a textile machine (20) according to any one of claims 1 to 8.

11. A computer program product (38) having machine-readable instructions for performing the method (100) according to claim 9 in a textile machine (20) according to any one of claims 1 to 8 when the computer program product (38) is executed on a control device (30) according to claim 10.

12. A machine-readable storage medium (36) having a computer program product (38) according to claim 11.

13. A textile machinery assembly, the textile machinery assembly comprising: - A first textile machine for filling at least one spinning bobbin (34) with fiber slivers (26), the first textile machine being particularly a carding machine or drawing frame, and - A second textile machine, which is the textile machine (20) according to any one of claims 1 to 8. The first textile machine is constructed and configured to impart such fiber sliver characteristics to the fiber sliver (26) at least at the start of the filling process of filling the at least one spinning bobbin (34), such that the fiber sliver characteristics can be detected by the yarn clearer (28) during the manufacture of yarn (24) from the fiber sliver (26) in the second textile machine, thereby enabling the control device (30) to analyze and determine the end region (32) of the fiber sliver (26).

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