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EP-4741548-A1 - TEXTILE MACHINE WITH DETECTION OF AN END PORTION OF A SLIVER

EP4741548A1EP 4741548 A1EP4741548 A1EP 4741548A1EP-4741548-A1

Abstract

The invention relates to a textile machine for producing a winding spool, comprising - at least one workstation for spinning yarn and for winding the spun yarn onto a winding spool, wherein the at least one workstation - a spinning device for spinning yarn from fibers of a fiber band fed to the spinning device; - a fiber ribbon feeder for feeding the fiber ribbon from a spinning can to the spinning device; - a yarn cleaner, which is designed and equipped downstream of the spinning device, to detect at least one yarn quality parameter of the spun yarn; and - A control device, designed and configured to perform an analysis of at least one yarn quality parameter. To improve the detection and/or calculation of the end of the fiber sliver intended for a spinning operation, the control device is designed and configured to determine, during the analysis, whether a fiber sliver characteristic underlies the yarn quality parameter, such that the fiber sliver characteristic is an indicator of an end region of the fiber sliver in the spinning can.

Inventors

  • RADERMACHER, WOLFGANG
  • HÜLS, Jürgen
  • MOHR, HANS-PETER
  • BOLTEN, DANIELA

Assignees

  • Saurer Spinning Solutions GmbH & Co. KG

Dates

Publication Date
20260513
Application Date
20251106

Claims (13)

  1. Textile machine (20) for producing a winding spool (46), comprising - at least one workstation (21) for spinning a yarn (24) and for winding the spun yarn (24) onto the winding spool (46), wherein the at least one workstation (21) has - a spinning device (22) for spinning the yarn (24) from fibers of a fiber band (26) supplied to the spinning device (22); - a fiber ribbon feeder (6) for feeding the fiber ribbon (26) from a spinning jug (34) to the spinning device (22); - a yarn cleaner (28), which is designed and configured downstream of the spinning device (22), to detect at least one yarn quality parameter of the spun yarn (24); and - a control device (30), trained and set up to perform an analysis of at least one yarn quality parameter, characterized by the fact that the control device (30) is designed and configured to determine during the analysis whether a fiber band characteristic underlies the yarn quality parameter, such that the fiber band characteristic is an indicator for an end region (32) of the fiber band (26) in the spinning can (34).
  2. Textile machine (20) according to claim 1, characterized in that the control device (30) is designed and configured to perform an action when the analysis reveals that the fiber ribbon characteristic is an indicator for the end region (32) of the fiber ribbon (26) in the spinning can (34).
  3. Textile machine (20) according to claim 2, characterized in that the action is selected from at least one of the following: - to stop the workplace (21); or - to issue a warning signal.
  4. Textile machine (20) according to at least one of the preceding claims, characterized in that the fiber ribbon characteristic of the end region (32) consists of a ramp-up of an adjustable drawing unit (3), a spinning can (34) filling Filling machine (1a) emerges.
  5. Textile machine (20) according to claim 4, characterized in that the filling machine (1a) is selected from a carding machine or a drawing machine.
  6. Textile machine (20) according to at least one of the preceding claims, characterized in that the at least one yarn quality parameter reflects one of the following: - a characteristic progression of at least one yarn zone for the end area (32); - a deviation in length, especially one that is predefined; - a deviation in a diameter, especially one that is predefined; or - a deviation in a mass, especially one that is predefined.
  7. Textile machine (20) according to at least one of the preceding claims, characterized in that the yarn cleaner (28) is designed and configured to perform continuous monitoring of the spun yarn (24) and to transmit the resulting yarn quality parameters to the control device (30), wherein the control device (30) is designed and configured to perform at least one of the following operations on the yarn quality parameters transmitted from the continuous monitoring of the spun yarn (24) by the yarn cleaner (28): - the calculation of averages; - the formation of reference values in the short error range; or - the formation of reference values in the long error range.
  8. Textile machine (20) according to at least one of the preceding claims, characterized in that the fiber belt (26) has a defined length and wherein the yarn cleaner (28) is designed and configured to measure a yarn length and wherein the yarn cleaner (28) is designed and configured to transmit a yarn length to the control device (30) in order to include the yarn length in the analysis of whether an end area (32) is present.
  9. Method (100) for detecting an end region (32) of a fiber ribbon (26) in a Spinning can (34) of a textile machine (20), in particular a textile machine (20) according to one of the preceding claims, comprising the steps: - of spinning (110) of yarn (24) in a spinning device (22) of the textile machine (20); - of a detection (120) of at least one yarn quality parameter of the spun yarn (24) by a yarn cleaner (28) downstream of the spinning device (22); - an analysis (130) of the at least one yarn quality parameter by a control device (30) to determine whether a fiber sliver characteristic underlies the yarn quality parameter, such that the fiber sliver characteristic is an indicator for an end region (32) of the fiber sliver (26) in the spinning can (34).
  10. Control device (30) designed and configured to carry out a method (100) according to claim 9 in a textile machine (20) according to at least one of claims 1 to 8.
  11. Computer program product (38) comprising machine-readable instructions for carrying out a method (100) according to claim 9 in a textile machine (20) according to any one of claims 1 to 8 when executed on a control device (30) according to claim 10.
  12. Machine-readable storage medium (36) comprising a computer program product (38) according to claim 11.
  13. Textile machinery association comprehensive - a first textile machine for filling at least one spinning can (34) with a fiber belt (26), in particular a carding machine or a drawing machine, and - a second textile machine, which is a textile machine (20) according to any one of the preceding claims 1 to 8, wherein the first textile machine is designed and equipped to provide the fiber ribbon (26) at least at the beginning of the filling process of the at least one spinning can (34) with such a fiber ribbon characteristic that it can be detected by the yarn cleaner (28) in the second textile machine during the production of the yarn (24) from the fiber ribbon (26) in such a way that the end area (32) of the fiber ribbon (26) can be analyzed and detected by means of the control device (30).

Description

The invention relates to a textile machine. The invention further relates to a method for detecting the end region of a fiber ribbon. The invention further relates to a control device. The invention relates to a computer program product. The invention relates to a machine-readable storage medium. The invention relates to a textile machine assembly. According to current technology, textile production machines – so-called textile machines – measure and/or specify the mass or length of a fiber strip, defining a specific production quantity of yarn to be manufactured within a specific timeframe. This allows material production parameters to be calculated and controlled. This approach has several disadvantages: In particular, deviations in the produced lengths and masses occur on upstream production lines leading to all further textile processing steps. Subsequent machines in the production chain cannot detect these variations, or only to a limited extent. Currently, there is no way to correct this, as it is production-dependent. Production data calculated and recorded in the subsequent production processes corresponds to the inputs. However, external factors such as operator behavior can lead to incorrect calculations and conclusions. In the final production process, lengths and/or masses are recorded that do not have a compensating effect on the materials being processed. Problems with material feeds, fiber spool breakage, tangled material from a pre-processor removed manually by operators, and other deficiencies arising from the machine's environment cannot be detected using existing spindle-based measurement methods to ensure complete emptying of a spinning can. The consequence of this faulty detection and/or calculation of the remaining quantity of feed material is that the material remains on the machine and must be fed back into upstream production processes. Another consequence of this faulty detection and/or calculation is that the calculated feed material runs out and is no longer present. This leads, in particular, to production unit downtime and production losses. The purpose of the invention is therefore to detect and/or calculate the end of the to improve a spinning process of the fiber ribbon intended for use. The problem is solved by a textile machine having the features of claim 1. Furthermore, the problem is solved by a method having the features of claim 9. The problem is further solved by a control device having the features of claim 10. The problem is solved in particular by a computer program product having the features of claim 11. Furthermore, the problem is solved by a machine-readable storage medium having the features of claim 12. The problem is solved by a textile machine assembly having the features of claim 13. Advantages, definitions, and features described in connection with the textile machine may also describe at least one of the method, the control device, the machine-readable storage medium, the computer program product, and the textile machine assembly. Advantages and definitions, but especially individual features, from the respective context may be combined with other advantages, definitions, and especially features, as described below. Advantageous embodiments of the invention are the subject of the dependent claims. A textile machine can be configured to produce a winding bobbin. The textile machine can have at least one workstation for spinning yarn and winding the spun yarn onto the winding bobbin. This at least one workstation can include a spinning device for spinning the yarn from fibers of a fiber sliver fed to the spinning device. This at least one workstation can include a fiber sliver feeder for feeding the fiber sliver from a spinning can to the spinning device. This at least one workstation can include a yarn cleaner, which is located downstream of the spinning device and is designed and configured to detect at least one yarn quality parameter of the spun yarn. A control device can be designed and configured to perform an analysis of at least one yarn quality parameter. The control device can be designed and configured to determine, during the analysis, whether a fiber sliver characteristic underlies the yarn quality parameter, such that the fiber sliver characteristic is an indicator of an end region of the fiber sliver in the spinning can. A yarn cleaner already integrated into the spindle of a textile machine not only checks the spun yarn for defects but also measures the exact length of the spun yarn, particularly when wound onto a spool. Inaccuracies in the length and/or mass of the supplied material cannot be detected, as these are factored into the machine's calculations. This reduces production interruptions. Previously, material withdrawals during malfunctions could not be recorded, making it impossible to determine the remaining contents or remaining runtime of the spinning can. The textile machine configuration described here enables reliable detect