EP4253292B1 - Dispositif de va-et-vient de fil - Google Patents

Dispositif de va-et-vient de fil Download PDF

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Publication number
EP4253292B1
EP4253292B1 EP23160366.3A EP23160366A EP4253292B1 EP 4253292 B1 EP4253292 B1 EP 4253292B1 EP 23160366 A EP23160366 A EP 23160366A EP 4253292 B1 EP4253292 B1 EP 4253292B1
Authority
EP
European Patent Office
Prior art keywords
thread
unit
heating
temperature
thread laying
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.)
Active
Application number
EP23160366.3A
Other languages
German (de)
English (en)
Other versions
EP4253292A1 (fr
Inventor
Michael Iding
Manfred Mund
Bernd Wüllenweber
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.)
Rieter Automatic Winder GmbH
Original Assignee
Rieter Automatic Winder GmbH
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Publication date
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Publication of EP4253292A1 publication Critical patent/EP4253292A1/fr
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Publication of EP4253292B1 publication Critical patent/EP4253292B1/fr
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    • 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
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2818—Traversing devices driven by rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • 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
    • 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

Definitions

  • the invention relates to a method for producing a cross-wound bobbin at a work station of a textile machine using a thread traversing device.
  • Thread traversing devices of the type mentioned above are available in a variety of designs from the state of the art, such as EP 0 857 682 A2 , known.
  • these serve to evenly wind a continuously fed thread onto a rotating take-up spool, the thread being moved back and forth in the axial direction of the take-up spool by means of the thread guide between the first and second end positions.
  • the thread guide can, for example, carry out an oscillating movement along a longitudinal axis of a guide rod adjacent to the surface of the take-up spool and parallel to its axis, which leads to the thread being wound evenly onto the take-up spool.
  • the thread guide so that it can move around a pivot axis, limited by the first and second end positions, in order to traverse the thread onto the rotating take-up spool, whereby the thread is traversed between the front sides of the take-up spool.
  • Textile machines with a thread laying unit that produces cross-wound bobbins do not run continuously, but are in practice switched off for a longer period of time, for example for the duration of a production-free weekend, a public holiday or when a shortage of materials makes it necessary to switch off the textile machine, whereby the cross-wound bobbins currently being produced at the individual work stations are not yet finished.
  • the winding process is then continued with the existing cross-wound bobbins.
  • the cross-wound bobbins exhibit quality defects such as steps or rings in the area of the cross-wound bobbin flanks and can therefore no longer be used in subsequent production processes because they no longer meet specific quality requirements.
  • the quality defects in the cross-wound bobbins result from the fact that an interruption in the production process is accompanied by a cooling of the thread laying unit, which results in slightly different bobbin parameters such as laying width, speed or the like due to slightly changed mechanical properties of the thread laying unit.
  • the object of the invention is to provide a thread traversing device and a method for producing a cross-wound bobbin at a work station of a textile machine using a thread traversing device, which enables the production of defect-free cross-wound bobbins even after a longer interruption in production.
  • the invention solves the problem by a thread traversing device having the features of claim 1 and by a method for producing a cross-wound bobbin at a workstation of a textile machine having the features of claim 6.
  • Advantageous further developments of the thread traversing device are specified in the dependent claims 2 to 5.
  • a further development of the method is specified in the dependent claim 7.
  • the thread traversing device has a thread laying unit with a thread guide that can be moved back and forth between a first end position and a second end position and thus in the axial direction of the take-up spool.
  • An electric motor drive is used to adjust the thread guide between the first and second end positions, by means of which the thread guide can be adjusted in an oscillating manner.
  • Characteristic of the thread traversing device is a tempering system with a heating unit having a control unit, wherein the heating unit serves to heat the thread laying unit and is controlled by the control unit.
  • the control unit of the heating unit thus makes it possible to switch the thread laying unit, or individual or several components of the thread laying unit, on after a longer interruption of operation of the textile machine before resuming the winding process. heat up, for example to a temperature that corresponds to the temperature of the thread laying unit that it had during operation of the work station before the winding process was interrupted.
  • the control unit can be used, for example, to activate the heating unit for a predetermined period of time set by the machine user, e.g. one to three minutes, before the winding process is restarted.
  • the control unit can also be used to specify the conditions for activating the heating unit, e.g. a minimum downtime. If production is interrupted for less than the downtime, which can also be set by the machine user, the heating unit will not be activated.
  • the corresponding heating of the thread laying unit ensures that when the winding process is restarted, it has the same laying properties as it had when the production process was terminated, so that the mechanical properties of the thread laying unit largely correspond to the properties present before the winding interruption and thus quality defects such as steps or rings in the area of the cross-wound bobbin flanks are avoided.
  • the design of the heating unit is basically freely selectable. For example, it is possible for the heating unit to initiate the start-up of the thread laying unit without starting the winding process. The thread guide is then moved in an oscillating manner between the first and second end positions for a set period of time while the winding package is at a standstill.
  • the heating unit integrated into the control unit causes an isolated activation of the thread laying unit before the winding process is resumed at the work station, whereby the activation of the thread laying unit heats it for a set period of time, which is necessary to reach the desired operating temperature. It is also possible to use other units at the work station, such as a roller motor or a cross-wound bobbin direct drive, to bring about heating.
  • the heating unit has a heating device that is operatively connected to the thread laying unit.
  • the heating unit has a separate heating device that heats the thread laying unit.
  • the heating device has the advantage that it, for example with its heating elements such as heating coils, can be connected to the Thread laying unit can be coupled so that the thread laying unit can be heated to the desired operating temperature for a short time so that the production process can be restarted particularly early.
  • the heating unit can also be designed to permanently supply current to the electric motor drive in such a way that the thread guide is held in the first or second end position.
  • Such current supply also causes the thread laying unit to heat up, with the thread guide pressing against a corresponding stop, for example, in the first or second end position until the operating temperature is reached.
  • the temperature control system has a temperature detection unit connected to the heating unit.
  • the operating temperature of the thread laying unit is determined by the temperature detection unit of the temperature control system and compared in the control unit with a target temperature previously stored in the control unit at which the winding process can be resumed.
  • This temperature value which is crucial for restarting the production process, can be stored in the control unit by the operating personnel or stored in an automated manner via the temperature detection unit in the control unit, e.g. by storing the temperature value at the end of the production process.
  • control unit detects that the operating temperature of the thread laying unit is below a tolerance threshold of the previously stored operating temperature when the production process is to be resumed, the thread laying unit is heated until it reaches a previously defined temperature value.
  • the production process of the work station can then be started, with the winding process for producing the cross-wound bobbins being resumed.
  • This embodiment of the invention thus particularly reliably prevents steps or rings in the area of the cross-coil flanks.
  • the target temperature of the thread laying unit can, for example, be stored in an external database, which the control unit accesses to compare the operating temperature of the thread laying unit.
  • the control unit is designed to compare the operating temperature of the thread laying unit with a target temperature stored in the control unit.
  • This embodiment of the invention makes it particularly easy and convenient to store the required operating temperature specifically for each thread laying unit of the individual workstations of the textile machine, which corresponds, for example, to the operating temperature that the respective thread laying unit had before the winding process was completed.
  • a specific storage of the target temperature of the individual thread laying units in the assigned control units ensures in a particularly reliable manner that the winding process is continued with the parameters that existed at the end of the production process, so that quality defects in the cross-wound bobbin are particularly prevented.
  • control unit is connected to a central control unit of the textile machine or is part of the central control unit.
  • This embodiment of the invention ensures in a particularly reliable manner that the winding process is started after the target temperature of the thread laying unit is reached, with the winding process being initiated via the central control unit, which is designed to control the individual work stations of the textile machine.
  • an interruption of the winding process is detected and, before it is resumed, the thread laying unit is heated by means of the heating unit.
  • the method according to the invention thus ensures that when the winding process is restarted, the thread laying unit always has the same laying properties that it had when the production process was completed. Quality defects such as steps or rings in the area of the cross-wound bobbin flanks are thus effectively avoided.
  • the thread laying unit can be heated using the heating unit after each interruption of the winding process and before it is activated again. According to an advantageous development of the invention, however, it is provided that the duration of an interruption of the winding process is recorded and the thread laying unit is heated for a specified period of time using the heating unit if the duration of the interruption of the winding process is exceeded by a previously specified period.
  • the thread laying unit is only heated by means of the heating unit when the interruption of the winding process exceeds a previously defined period of time. If necessary, the thread laying unit is then heated by means of the heating unit, whereby the duration of the heating by the heating unit can also be predetermined.
  • This embodiment of the invention ensures that heating only takes place when there is a real risk of changes in the mechanical properties of the thread laying unit and associated quality defects due to the interruption of the winding process. This development of the invention thus makes it possible to dispense with unnecessary heating, which would occur, for example, if the winding process were only interrupted for a short time.
  • the operating temperature of the thread laying unit is determined using the temperature detection unit before the winding process begins again. As part of a comparison of the determined operating temperature with a target temperature of the thread laying unit, it is then checked whether the thread laying unit has the target temperature. If the operating temperature of the thread laying unit is below the target temperature, the heating unit heats the thread laying unit until the target temperature is reached. The reaching of the target temperature is then signaled to a control unit of the textile machine, which then initiates the production process by resuming the winding process.
  • the target temperature is recorded during winding operation of the work station, in particular immediately before deactivation of the textile machine.
  • This embodiment of the invention ensures in a particularly reliable manner that the winding process is resumed with matching temperature parameters of the thread laying unit. Quality defects in the cross-wound bobbin are thereby avoided in a particularly advantageous manner.
  • FIG 1 is a schematic representation of a work station 1 of a cross-wound bobbin 2 manufacturing textile machine in the area of the cross-wound bobbin 2.
  • Such textile machines generally have a large number of similar work stations 1 arranged next to one another in a row, at which a thread 3 is wound onto a cross-wound bobbin 2.
  • the thread 3 is transported in the direction of the cross-wound bobbin 2 and wound up there.
  • the thread 3 runs through various units, e.g. a thread sensor (not shown here), before it runs onto the cross-wound bobbin 2, which is frictionally rotated by a bobbin drive roller 4.
  • the thread 3 running onto the cross-wound bobbin 2 is traversed by a thread guide 5, which can be displaced along a longitudinal axis of a traversing rod 6, and runs onto the cross-wound bobbin 2 in intersecting windings.
  • the thread guide 5 and the traversing rod 6 are part of a thread laying unit 7 of a thread traversing device, which has an electric motor drive (not shown here) for driving the thread guide 5.
  • the electric motor drive (not shown) is used to drive the thread guide 5, i.e. to adjust it between a first end position and a second end position.
  • the electric motor drive is connected to a temperature control system of the thread traversing device (also not shown here), which has a temperature detection unit for determining the operating temperature of the thread laying unit 7 and a control unit connected to the temperature detection unit.
  • the control unit in turn has a heating unit for heating the thread laying unit 7.
  • the operating temperature of the thread laying unit 7 is first determined by the temperature control system before the winding process is resumed. If this operating temperature is below a predetermined target temperature, e.g. the operating temperature of the thread laying unit 7 before the winding process ends, the control unit causes the thread laying unit 7 to heat up via the heating unit of the control unit.
  • the heating unit causes the electric motor drive to be energized in such a way that the thread guide element is held in an end position until the operating temperature of the thread laying unit 7 corresponds to the predetermined target temperature due to the energization.
  • the readiness to resume the winding process is then signaled to a central control unit of the textile machine via the control unit so that it can then be started.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Winding Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Claims (10)

  1. Dispositif de va-et-vient de fil pour la traversée d'un fil (3) au niveau d'un poste de travail (1) d'une machine textile fabriquant des bobines croisées (2), comportant
    - une unité de distribution de fil (7) présentant un guide-fil (5) pouvant se déplacer entre une première position finale et une seconde position finale, et
    - un entraînement par moteur électrique connecté à l'unité de distribution de fil (7) pour le réglage oscillant du guide-fil (5) entre la première et la seconde position finale,
    caractérisé par
    un système de régulation de température comportant une unité de chauffage présentant une unité de commande pour le chauffage de l'unité de distribution de fil (7).
  2. Dispositif de va-et-vient de fil selon la revendication 1, caractérisé en ce que l'unité de chauffage présente un dispositif de chauffage se trouvant en liaison fonctionnelle avec l'unité de distribution de fil (7).
  3. Dispositif de va-et-vient de fil selon la revendication 1 ou 2, caractérisé en ce que l'unité de chauffage est configurée pour activer l'unité de distribution de fil (7) et/ou pour alimenter en permanence l'entraînement par moteur électrique de telle sorte que le guide-fil (5) est maintenu dans la première ou la seconde position finale.
  4. Dispositif de va-et-vient de fil selon une ou plusieurs des revendications précédentes, caractérisé en ce que le système de régulation de température présente une unité de détection de température connectée à l'unité de chauffage.
  5. Dispositif de va-et-vient de fil selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'unité de commande est configurée pour équilibrer la température de fonctionnement de l'unité de distribution de fil (7) à l'aide d'une température de consigne enregistrée dans l'unité de commande.
  6. Dispositif de va-et-vient de fil selon une ou plusieurs des revendications précédentes, caractérisé en ce que l'unité de commande est connectée à une unité de commande centrale de la machine textile ou fait partie intégrante de l'unité de commande centrale.
  7. Procédé permettant la fabrication d'une bobine croisée (2) au niveau d'un poste de travail (1) d'une machine textile en utilisant un dispositif de va-et-vient de fil selon une ou plusieurs des revendications 1 à 6, comportant les étapes consistant à
    - détecter une interruption du processus de bobinage et
    - chauffer l'unité de distribution de fil (7) au moyen de l'unité de chauffage avant une activation du processus de bobinage.
  8. Procédé selon la revendication 7, caractérisé en ce que
    - la durée d'une interruption du processus de bobinage est détectée et
    - un chauffage de l'unité de distribution de fil (7) est effectué pour une période de temps déterminée au moyen de l'unité de chauffage lors d'un dépassement déterminé au préalable de la durée de l'interruption du processus de bobinage.
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce que
    - la température de fonctionnement de l'unité de distribution de fil (7) est détectée au moyen de l'unité de détection de température,
    - la température de fonctionnement déterminée est comparée à une température de consigne de l'unité de distribution de fil (7),
    - l'unité de distribution de fil (7) est chauffée au moyen de l'unité de chauffage lorsque la température de consigne n'est pas atteinte jusqu'à ce que la température de consigne soit atteinte et
    - l'atteinte de la température de consigne est signalée à une unité de commande pour l'activation du processus de bobinage.
  10. Procédé selon la revendication 9,
    caractérisé en ce que la température de consigne est détectée en fonctionnement de bobinage du poste de travail (1), en particulier juste avant la désactivation de la machine textile.
EP23160366.3A 2022-03-30 2023-03-07 Dispositif de va-et-vient de fil Active EP4253292B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022107472.2A DE102022107472A1 (de) 2022-03-30 2022-03-30 Fadenchangiervorrichtung

Publications (2)

Publication Number Publication Date
EP4253292A1 EP4253292A1 (fr) 2023-10-04
EP4253292B1 true EP4253292B1 (fr) 2024-11-06

Family

ID=85511221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23160366.3A Active EP4253292B1 (fr) 2022-03-30 2023-03-07 Dispositif de va-et-vient de fil

Country Status (3)

Country Link
EP (1) EP4253292B1 (fr)
CN (1) CN116891156A (fr)
DE (1) DE102022107472A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591524A (en) * 1992-08-19 1997-01-07 Rieter Ingolstadt Spinnereimaschinenbau Ag Device for the laying of yarn on a cross-wound bobbin
EP0857682A3 (fr) * 1997-02-07 1999-11-24 Murata Kikai Kabushiki Kaisha Dispositif pour entrainer une longue tige en va et vient
JP2012017205A (ja) 2010-07-09 2012-01-26 Murata Machinery Ltd 糸巻取装置
DE102010044901A1 (de) 2010-09-09 2012-03-15 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Kreuzspulen herstellenden Textilmaschine und Kreuzspulen herstellende Textilmaschine

Also Published As

Publication number Publication date
DE102022107472A1 (de) 2023-10-05
CN116891156A (zh) 2023-10-17
EP4253292A1 (fr) 2023-10-04

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