EP4050138A1 - Procédé de fonctionnement d'un poste de travail d'un métier à filer et poste de travail - Google Patents

Procédé de fonctionnement d'un poste de travail d'un métier à filer et poste de travail Download PDF

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Publication number
EP4050138A1
EP4050138A1 EP22154801.9A EP22154801A EP4050138A1 EP 4050138 A1 EP4050138 A1 EP 4050138A1 EP 22154801 A EP22154801 A EP 22154801A EP 4050138 A1 EP4050138 A1 EP 4050138A1
Authority
EP
European Patent Office
Prior art keywords
yarn
winding
speed
work station
traversing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22154801.9A
Other languages
German (de)
English (en)
Other versions
EP4050138B1 (fr
Inventor
Pavel Kucera
Jakub MAREK
Jan Pysny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP4050138A1 publication Critical patent/EP4050138A1/fr
Application granted granted Critical
Publication of EP4050138B1 publication Critical patent/EP4050138B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/06—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making cross-wound packages
    • B65H54/08—Precision winding arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/22—Automatic winding machines, i.e. machines with servicing units for automatically performing end-finding, interconnecting of successive lengths of material, controlling and fault-detecting of the running material and replacing or removing of full or empty cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/006—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/42—Control of driving or stopping
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/42—Control of driving or stopping
    • D01H4/44—Control of driving or stopping in rotor spinning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field

Definitions

  • the present invention relates to a method for operating a work station of a spinning machine, with a yarn being drawn off from a spinning unit at a take-off speed during normal operation, with the yarn being monitored with the aid of a quality sensor with regard to at least one yarn parameter, with the yarn being spooled with the aid of a winding device in a winding speed is wound onto a tube and a package is formed, the yarn being moved back and forth along a traversing width when being wound onto the tube, and a stop sequence being initiated by the quality sensor when a yarn defect-related deviation from a target value of the at least one yarn parameter is detected . Furthermore, the invention relates to a work station of a spinning machine.
  • the spinning machines can be configured as air-jet spinning machines or rotor spinning machines, for example.
  • the aim here is to initiate a stop sequence if at least one yarn parameter deviates from a target value.
  • a stop sequence is initiated upon detection of a defined deviation of a monitored yarn parameter from at least one target value.
  • the spinning unit and the winding unit are stopped in such a way that the yarn section produced last does not completely run onto the tube located in the winding device.
  • the yarn section that has the detected deviation of the yarn parameter is often wound onto the tube with an indefinite length of subsequent yarn. This indefinite length of subsequent yarn must then be unwound and cut off again. This creates a large amount of yarn waste.
  • the object of the present invention is to eliminate the disadvantages known from the prior art.
  • the object is in particular to create a method for operating a work station of a spinning machine and a work station which makes it easier to search for the end of the yarn, improves the winding of the yarn onto the tube and/or reduces yarn waste.
  • a method for operating a work station of a spinning machine is proposed, with a yarn being drawn off from a spinning unit at a take-off speed during normal operation.
  • the spinning machine is preferably an air or rotor spinning machine.
  • the spinning unit comprises, for example, a turbulence chamber or a rotor and produces the yarn from a supplied fiber material.
  • the yarn is then withdrawn from the spinning unit by a withdrawal device.
  • the take-off speed is the speed of the yarn at which it is taken off from the spinning unit.
  • the work station generally includes other elements necessary for yarn production, such as a drafting system for drafting and/or an opening roller for separating the fiber structure.
  • the yarn After leaving the outlet of the spinning unit, the yarn is monitored with the aid of a quality sensor with regard to at least one yarn parameter.
  • the yarn parameters are, for example, the thickness and the hairiness or other parameters characterizing the quality of the yarn or their fluctuations over time.
  • the yarn is then wound onto a tube with the aid of a winding device at a winding speed and a package is thus formed, the yarn being moved back and forth along a traversing width when being wound onto the tube.
  • the work station has a traversing device for moving the yarn back and forth along the traversing width.
  • the traversing width is the distance between the two turning points of the traversing device.
  • the term sleeve means the body onto which the yarn is wound.
  • the term spool means the combination of said tube and the yarn located on the tube.
  • the winding speed is the speed at which the yarn is wound onto the tube or onto the surface of the bobbin. The winding speed is therefore the speed of the yarn just before it runs onto the tube or onto the bobbin.
  • the winding speed is primarily dependent on the rotational speed of the tube or bobbin, the outer diameter of the bobbin, the traversing width and/or a traversing frequency at which the traversing device moves along the traversing width.
  • a stop sequence is a sequence that stops the normal operation of the work station.
  • the stop sequence is the chronological sequence of different operations when normal operation is stopped. Individual elements such as the spinning unit, the winding device, the take-off device and/or the traversing device can be stopped step by step or simultaneously.
  • the quality sensor can be arranged between the spinning unit and the take-off device. Additionally or alternatively, the quality sensor can be arranged between the take-off device and the winding device.
  • the method provides for the winding speed to be reduced during the stop sequence, with a yarn loop being formed as a result of the resulting speed difference between the winding speed and the take-off speed.
  • the take-off speed remains essentially constant and/or the reduction in the take-off speed is less than the reduction in the winding speed, so that the yarn loop is formed.
  • the winding of the yarn is slowed down by reducing the winding speed during the stop sequence and thus after the detection of the deviation from the target value of the at least one yarn parameter caused by the yarn defect. The missing part of the yarn is therefore not wound onto the tube or the surface of the bobbin, or only at a slower rate.
  • the position of the defect between the quality sensor and the winding device and/or on the spool can be localized more precisely due to the slowed-down winding.
  • the yarn tension during the slow winding of the yarn onto the tube during the stopping sequence remains approximately constant despite the difference in speed due to the yarn loop formed. In this way, fluctuations in the yarn tension, which result from the reduction in the winding speed and/or from the back and forth movement of the traversing device along the traversing width with the traversing frequency, can be compensated for.
  • the method provides for the traversing width to be reduced during the reduction in the winding speed and/or thereafter.
  • the yarn runs within this reduced traversing width on the sleeve or on the surface of the coil. This can ensure that the defect then runs onto the bobbin within this traversing width. This makes it easier to find this defect.
  • the lower yarn tension resulting from the reduction in the traversing width can be compensated for by enlarging the yarn loop. In this way, a constant yarn tension can continue to be guaranteed with a simultaneously smaller traversing width.
  • the yarn is severed in the area of the yarn loop, with a resultant yarn end on the bobbin side being guided in the direction of the bobbin at the winding speed. If the yarn is severed in the area of the yarn loop following the reduction in winding speed, the yarn end is slowly guided towards the bobbin. Because of the reduced winding speed, the end of the yarn can be stopped before it runs up, in particular at a pick-up position. As a result, it can be found and/or picked up more easily during a subsequent piecing process. If the yarn is additionally or alternatively severed after the reduction of the traversing width in the area of the yarn loop, the position of the defect and/or the yarn end can also be limited in width when being guided in the direction of the spool.
  • the yarn loop is formed and/or severed in an intermediate store.
  • the intermediate store preferably works pneumatically and sucks in the yarn by means of negative pressure. The maintenance of the yarn tension can be guaranteed by the buffer. If the yarn loop is severed in the intermediate store, the end of the yarn on the spool side can be guided out of the intermediate store again counter to the direction of the suction effect as it moves in the direction of the spool. The yarn end on the take-off side can be discharged or sucked off by means of the intermediate store, which in particular works pneumatically.
  • a yarn separating device is advantageously arranged in the temporary store for severing the yarn.
  • the yarn sucked into the intermediate store by means of negative pressure is then separated by the yarn cutting device.
  • the yarn cutting device By arranging the yarn cutting device within the intermediate store, a yarn end that is as sharp as possible can be produced, in particular by maintaining the yarn tension. This sharp end of the yarn simplifies the subsequent search for, picking up and/or piecing.
  • the arrangement of the yarn separating device within the intermediate store has the advantage that the most compact possible work station is created.
  • the traversing width is reduced to almost zero, as a result of which the yarn runs onto the spool in at least one parallel winding.
  • the reduction of the traversing width to approximately zero is to be understood here in such a way that the yarn can run onto the surface of the bobbin in approximately parallel windings.
  • the windings of the yarn are lined up in a narrow width so that parallel windings are created.
  • the defect runs onto the surface of the coil in the area of the at least one parallel winding.
  • the yarn end on the spool side is preferably stopped before it runs onto the spool. By winding the yarn in parallel, it can then be unwound again in a simplified manner and fed back into the spinning unit in a piecing process that follows the stopping sequence.
  • the at least one parallel winding runs onto the coil in the middle.
  • the traversing width which is preferably reduced to approximately zero, is thus formed in the center of the coil.
  • the defect runs centrally in the area of the at least one parallel winding onto the surface of the coil.
  • the spool-side yarn end is preferably stopped before it runs onto the spool, the gripping position of the spool-side yarn end thus being arranged essentially in the center of the spool. Through the central pick-up position of the spool-side yarn end can be found and/or picked up more easily.
  • the take-off speed and/or the bobbin speed is reduced to a standstill.
  • the yarn monitor is preferably arranged between the take-off device and the winding device and/or between the intermediate store forming the thread loop and the winding device. In this way, the end of the yarn on the bobbin side can be detected before it runs onto the bobbin. Additionally or alternatively, the traversing device can be stopped. This allows the stop sequence to be completed. The defect can then advantageously be removed and/or the piecing process can be started.
  • the winding device continues to be operated after the yarn monitor has detected that the yarn end on the bobbin side has passed, until the yarn section with the deviation caused by the yarn defect runs onto the surface of the bobbin and/or the yarn end on the bobbin side is arranged at a pick-up position. In this way, an always constant pick-up position can be guaranteed.
  • the invention also relates to a workstation of a spinning machine, with a take-off device for drawing off a yarn from a spinning unit, with a quality sensor for monitoring the yarn with regard to at least one yarn parameter, with a winding device for winding the yarn onto a tube, and with a traversing device for back and forth moving the yarn along a traverse width during winding.
  • the workstation has a control unit or is operatively connected to a control unit that is designed to operate the workstation according to the preceding description, it being possible for the features mentioned to be present individually or in any combination.
  • the work station has an intermediate store, preferably one that operates pneumatically, for forming a yarn loop.
  • the intermediate store has a yarn cutting device for cutting the yarn in the area of the yarn loop.
  • figure 1 shows a section of a schematic front view of a work station 1 of a spinning machine during normal operation.
  • a yarn 3 is drawn off from a spinning unit 4 at a drawing-off speed by means of a drawing-off device 2 .
  • the take-off device 2 is preferably designed in the form of a pair of take-off rollers.
  • the spinning unit 4 is a spinning nozzle with a turbulence chamber of an air spinning machine, in which fibers of a fiber material are twisted into the yarn 3 with the aid of a turbulent air flow.
  • the feeding of the fiber material which is usually realized by means of a drafting system in air-jet spinning machines, is not shown here.
  • the work station 1 is a work station 1 of a rotor spinning machine
  • the fiber material is usually dissolved into its individual fibers with a dissolving device.
  • the spinning unit 4 has a rapidly rotating rotor for forming the yarn 3 .
  • the yarn 3 After leaving the spinning unit 4, the yarn 3 is monitored with the aid of a quality sensor 5 with regard to at least one yarn parameter. With the help of a yarn monitor 15, the presence of the yarn 3 can then also be monitored. The yarn 3 is then wound onto a sleeve 7 at a winding speed with the aid of a winding device 6, as a result of which a coil 8 is formed. A yarn guide element 9 can be arranged between the yarn monitor 15 and the winding device 6 for additional guiding of the yarn 3 . To produce a cross-wound bobbin, the yarn 3 is moved back and forth along a traversing width CB when being wound onto the tube 7 or onto the surface of the bobbin 8 with the aid of a traversing device 10 .
  • the traversing width CB is selected such that the traversing device 10 can distribute the yarn 3 evenly over a winding width SB on the tube 7 or on the surface of the bobbin 8.
  • the traversing width CB during normal operation of the work station 1 is essentially equal to the winding width SB.
  • the workplace 1 also has a control unit 11 .
  • the control unit 11 is designed in such a way that it can operate the components of the work station 1 according to appropriately stored specifications, in particular according to the previous and/or following description. Additionally or alternatively, the control unit 11 can be arranged centrally on the spinning machine and operate one or more work stations 1 of the spinning machine according to the specifications. The control unit 11 is in operative connection with the work station 1 .
  • a yarn loop S is formed by reducing the winding speed and the resulting speed difference between the winding speed and the take-off speed.
  • the winding speed is primarily dependent on the rotational speed of the sleeve 7 or the bobbin 8, which is introduced by the winding device 6, and its diameter.
  • the take-off speed is primarily dependent on the rotational speed of the pair of take-off rollers of the take-off device 2 .
  • the work station 1 has an intermediate store 12 for forming the yarn loop S.
  • the intermediate store 12 is preferably operated pneumatically.
  • the buffer store 12 is preferably arranged between the quality sensor 5 and the yarn monitor 15 or between the take-off device 2 and the yarn monitor 15 . Due to the slower winding speed, the deviation F caused by the yarn defect is then guided in the direction of the spool 8 at a slower rate.
  • the traversing width CB is reduced during and/or after the reduction in the winding speed.
  • figure 3 shows this point in time of the stop sequence, with the traversing width CB being reduced to almost zero.
  • the yarn loop S can be enlarged by reducing the traversing width CB.
  • the yarn 3 is severed in the area of the yarn loop S using a yarn separating device 13 .
  • a resulting yarn end 14 on the bobbin side is guided further in the direction of the bobbin 8 together with the deviation F caused by the yarn defect with the winding speed. This time of the stop sequence is in figure 4 shown.
  • the winding speed is reduced to a standstill. As shown in the exemplary embodiment shown, the yarn end 14 on the bobbin side comes to a standstill before it runs onto the surface of the bobbin 8 .
  • the position of the yarn end 14 on the bobbin side shown is called the pick-up position.
  • the pickup position is arranged essentially in the middle of the sleeve 7 or the coil 8 .
  • the deviation F caused by the yarn defect is wound up on the surface of the bobbin 8 in the area of the at least parallel winding PW.
  • the spinning unit 4 can stop the production of the yarn 3 and then the take-off speed can be reduced to a standstill.
  • the yarn 3 produced after the yarn 3 has been severed can be sucked off with the aid of the intermediate store 12 .
  • the stop sequence is then ended.
  • the yarn end 14 on the bobbin side can be prepared for piecing.
  • the yarn end 14 on the spool side is picked up at the pick-up position with the aid of the workplace’s own resources and/or with the aid of a service robot, the at least one parallel winding PW is unwound from the spool 8, the deviation F caused by the yarn error is removed and the spinning unit 4 is returned.
  • work station 1 can resume normal operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP22154801.9A 2021-02-04 2022-02-02 Procédé de fonctionnement d'un poste de travail d'un métier à filer et poste de travail Active EP4050138B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021102656.3A DE102021102656A1 (de) 2021-02-04 2021-02-04 Verfahren zum Betreiben einer Arbeitsstelle einer Spinnmaschine und Arbeitsstelle

Publications (2)

Publication Number Publication Date
EP4050138A1 true EP4050138A1 (fr) 2022-08-31
EP4050138B1 EP4050138B1 (fr) 2023-10-25

Family

ID=80225389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22154801.9A Active EP4050138B1 (fr) 2021-02-04 2022-02-02 Procédé de fonctionnement d'un poste de travail d'un métier à filer et poste de travail

Country Status (3)

Country Link
EP (1) EP4050138B1 (fr)
CN (1) CN114852789B (fr)
DE (1) DE102021102656A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2573237A2 (fr) * 2011-09-21 2013-03-27 Rieter Ingolstadt GmbH Métier à tisser et procédé d'interruption de la fabrication de fil sur un métier à tisser
EP2679711A1 (fr) * 2012-06-19 2014-01-01 Maschinenfabrik Rieter Ag Métier à tisser à jet d'air et procédé destiné au rattachement d'un fil
DE102015110486A1 (de) 2015-06-30 2017-01-05 Rieter Ingolstadt Gmbh Spinnstelle einer Spinnmaschine sowie Verfahren zum Betreiben einer Spinnstelle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011037608A (ja) * 2009-08-17 2011-02-24 Murata Machinery Ltd 繊維機械
JP2012012137A (ja) * 2010-06-29 2012-01-19 Murata Machinery Ltd 糸巻取装置
JP2012153476A (ja) * 2011-01-25 2012-08-16 Murata Machinery Ltd 糸巻取装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2573237A2 (fr) * 2011-09-21 2013-03-27 Rieter Ingolstadt GmbH Métier à tisser et procédé d'interruption de la fabrication de fil sur un métier à tisser
EP2679711A1 (fr) * 2012-06-19 2014-01-01 Maschinenfabrik Rieter Ag Métier à tisser à jet d'air et procédé destiné au rattachement d'un fil
DE102015110486A1 (de) 2015-06-30 2017-01-05 Rieter Ingolstadt Gmbh Spinnstelle einer Spinnmaschine sowie Verfahren zum Betreiben einer Spinnstelle

Also Published As

Publication number Publication date
CN114852789A (zh) 2022-08-05
CN114852789B (zh) 2026-02-17
EP4050138B1 (fr) 2023-10-25
DE102021102656A8 (de) 2022-09-22
DE102021102656A1 (de) 2022-08-04

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