EP1737776B1 - Verfahren zur neuinitialisierung der zählung von fadenbobinenlängen - Google Patents

Verfahren zur neuinitialisierung der zählung von fadenbobinenlängen Download PDF

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Publication number
EP1737776B1
EP1737776B1 EP05728067A EP05728067A EP1737776B1 EP 1737776 B1 EP1737776 B1 EP 1737776B1 EP 05728067 A EP05728067 A EP 05728067A EP 05728067 A EP05728067 A EP 05728067A EP 1737776 B1 EP1737776 B1 EP 1737776B1
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EP
European Patent Office
Prior art keywords
rotation speed
reel
speed
measured
rotation
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Not-in-force
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EP05728067A
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English (en)
French (fr)
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EP1737776A1 (de
Inventor
Gilles Coral
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RITM
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RITM
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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
    • B65H61/00—Applications of devices for metering predetermined lengths of running material
    • 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
    • B65H63/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to delivery of a measured length of material, completion of winding of a package, or filling of a receptacle
    • 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 the technical sector of textile textile machines son transformation.
  • the invention finds application in the field of winding which consists of applying a coil forming on a motorized receiving cylinder to ensure both the rotation of the coil and the call wire.
  • the coil on which the wire is wound is subjected to a movable assembly that encloses the central tube between rotating centering members allowing it to rotate on its axis, while pressing against the motorized cylinder.
  • the device or devices can be coupled with means able to warn the operator that the programmed metering is achieved for the latter to perform the reception digging, that is to say the evacuation of the coil and the recovery of the winding on an empty support.
  • the device can also be coupled with a means for interrupting the programmed winding reached, waiting for an operator.
  • the device can also be coupled with automatic tipping means when the programmed footage is reached.
  • the aim is therefore to produce coils of perfectly equal lengths so that, for example, all the warp yarns are identical, without knots, and no coil bottom losses.
  • control devices are, for example, based on the speed measurement of the machine's call elements or different means gathering different winding parameters to then perform measurements of footage.
  • a technical solution is known in which the speed of a shaft based on the counting of pulses provided by a sensor detecting the rotation of the shaft is representative of the speed of advance of the wire.
  • the patent FR 2.309.832 discloses a system based on the counting of pulses delivered by a sensor detecting rotation of the coil, an electronic circuit evaluating the amount of wire wound on the circumference of the coil at each rotation thereof.
  • the patent FR 2,517,657 relates to a technical solution equivalent to that defined above with means able to compensate for measurement errors due to slippage.
  • the operator can decide to continue production on the same coil, without resetting the counter, the counting to continue until the determined footage. This is for example the case of a breakage of the thread insofar as it is possible to perform a piecing of the latter.
  • the operator may decide to restart production on a new reel. In this case, it is usually necessary to pick up and discard the spool and place an empty tube to restart production. The position metering count must then be reset using a position-related contactor to have this count restart from the beginning.
  • a switch placed on the assembly that supports the coil or its tube detects the operation of the support characteristic of replacing the full coil by the empty tube.
  • Another means consists in placing a switch in the coil fixing means in order to detect its presence and its temporary absence during the exchange of a full coil by an empty tube.
  • Such means are generally expensive and difficult to adjust.
  • they perform a reset when the movements characterizing an exchange of full coils by an empty tube are detected, even if such an exchange is not actually made.
  • the object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
  • the problem to be solved by the invention is to ensure the resetting of the wire coil length count, while aiming to eliminate any uncertainty due to the operator, to completely automate the reset. in order to simplify the work of said operator and to optimize his intervention time in front of each position, while eliminating the possibility of making reels too short.
  • the invention finds an advantageous application in the case in particular of a winding device which consists of applying the coil forming on a motorized receiving cylinder ensuring both the rotation of the coil and the call some thread.
  • the reset of the counter is carried out from the measurement of the diameter of the coil in formation after its start.
  • the post-start speed measurement is immediately after the post-start acceleration phase. In practice, this speed corresponds to the maximum speed reached at the end of the start acceleration phase and at the beginning of the progressive progressive deceleration phase of the winding phase.
  • Resetting the count can be a simple reset.
  • this count reset may be a count reset to the recorded winding length during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
  • the speed of rotation is measured continuously or at regular intervals during production.
  • the rotational speed corresponding to the final measurement of a correctly wound bobbin and / or the speed of rotation corresponding to the maximum bobbin diameter supported by the winding system is recorded beforehand.
  • a table containing the rotational speed as a function of the metric reached for a correctly wound bobbin is recorded beforehand, so that, if the rotational speed measured at any moment of the winding is different from the corresponding rotational speed. at the metric reached at the moment considered for a correctly wound coil, an alarm is triggered indicating that the diameter of the coil does not conform to the expected diameter.
  • a device comprises at least one means capable of measuring the rotational speed of the coil, for example a sensor, delivering one or more pulses per revolution to derive from the frequency of said pulses or the time elapsed between said impulses, the speed of rotation.
  • the device comprises electrical or electronic means able to perform the operations described above and to trigger alarms in the form of, for example, one or more visual and / or sound signals.
  • the means may be subject to a display indicating the causes of the alarm.
  • the means may be a computer, a PLC, a logic electronic circuit, possibly combined with other means of processing and / or diagnosis.
  • the markings (F) correspond to the wire, (1) to the call barrel, (2) to the coil tube, (3) to the wire winding, (4) to the wire guide and (4) 5) by measuring the angular velocity of the coil (2).
  • the measurement of the speed of rotation of the reel (2) is used, which is a quantity that varies as a function of the length of wire wound.
  • the rotational speed of the spool (2) is substantially inversely proportional to the circumference of the spool and therefore to its diameter.
  • this rotational speed of the coil is maximum when the tube is empty, and decreases as and when as the circumference of the coil increases.
  • the speed of rotation (Vo) obtained with the empty tube (2) is recorded beforehand.
  • the speed measurement after the start is immediately after the acceleration phase following the restart. In practice, this speed corresponds to the maximum speed reached at the end of the start acceleration phase (A) and at the beginning of the progressive deceleration phase (B) consecutive to the winding phase.
  • Resetting the count can be a simple reset.
  • this reset can be a counting reset to the recorded winding length during the acceleration phase, estimated for example by counting the number of rotations made by the tube during this phase.
  • the speed of rotation is measured continuously or at regular intervals during protection (see algorithm figure 6 ).
  • the rotational speed (Vp) corresponding to the final measurement of a correctly wound coil and / or the rotation speed corresponding to the maximum diameter of the coil supported by the winding system is previously recorded (see algorithm figure 7 ).
  • the interruption of the winding is controlled.
  • the system emits an alarm meaning that the maximum diameter of the coil has been exceeded.
  • the measuring means (5) can consist for example of a magnetic sensor, optical or otherwise, delivering one or more pulses per revolution. The speed of rotation is deduced from the frequency of these pulses or the time elapsed between these pulses.
  • the device comprises means for carrying out the measurements and treatments described above.
  • These means can be electronic cards, logic circuits, automata, ...
  • the alarms can be identified by the combination of the different signals or by the different rhythms, frequencies or flash codes of these signals. Alarms may be subject to a display indicating the reason for the alarm. Similarly, these alarms can be transmitted by network to a PLC that presents the machine or other system of production management. It should be noted that the alarms can be combined with any diagnostic means, such as voltage detectors, wire presence detectors, textile defect detectors, and more generally by any system for controlling the quality of production. The different treatments are done on electronic boards (for example PLC) or integrated and / or combined with other means of diagnosis.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Claims (10)

  1. Verfahren zur Neuinitalisierung der Zählung von Fadenbobinenlängen, dadurch gekennzeichnet, dass:
    die Drehzahl (Vo), die man mit der leeren Spule erhält, zuvor registriert wird;
    man nach dem Einschalten die Drehzahl (Vd) der sich bildenden Spule misst, die der Höchstgeschwindigkeit entspricht, welche am Ende der Beschleunigungsphase beim Anfahren (A) und zu Beginn der fortschreitenden Verlangsamungsphase nach der Aufwicklungsphase (B) erreicht wird, und man vergleicht sie mit der Drehzahl, die man erhält, wenn die Spule leer ist;
    wenn die nach dem Einschalten gemessene Drehzahl (Vd) im wesentlichen gleich oder höher ist als die Drehzahl (Vo), die man bei leerer Spule erhält, wird eine Neuinitialisierung der Zählung der Länge durchgeführt;
    wenn die Drehzahl (Vd) nach dem Einschalten wesentlich niedriger ist als die Drehzahl (Vo), die man bei leerer Spule erhält, wird die Zählung an der Stelle, an der man verblieben ist, fortgesetzt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass es sich bei der Neuinitialisierung der Zählung einfach um ein Zurückstellen auf Null handelt.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Neuinitialisierung der Zählung bei einer höheren Präzision der Meterzahl ein Zurücksetzen der Zählung auf die während der Beschleunigungsphase registrierte Aufwickellänge ist, die berechnet wird, indem man beispielsweise die Anzahl der Umdrehungen zählt, die von dem Rohr in dieser Phase durchgeführt werden.
  4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass man die Drehzahl ständig oder in regelmäßigen Intervallen während der Produktion misst.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass:
    man die gemessene Drehzahl (Va) unmittelbar vor Stillstand der Produktion speichert; und
    man die Drehzahl (Vd) nach dem Wiedereinschalten misst und sie einerseits mit der Drehzahl (Vo) vergleicht, die man mit einer leeren Spule erhält, und andererseits mit der Drehzahl (Va) vergleicht, die unmittelbar vor dem Stillstand gemessen wird, so dass:
    man die Neuinitialisierung der Zählung der Länge durchführt, wenn die Drehzahl (Vd), die nach dem Wiedereinschalten gemessen wird, im wesentlichen gleich oder höher ist als die Drehzahl (Vo), die man mit der leeren Spule erhält;
    man keine Neuinitialisierung der Zählung der Länge durchführt und die Zählung an der Stelle, an der man verblieben ist, fortsetzt, wenn die Drehzahl (Vd), die nach dem Wiedereinschalten gemessen wird, niedriger ist als die Drehzahl (Vo), die man mit der leeren Spule erhält, und im wesentlichen gleich der Drehzahl (Va) ist, die unmittelbar vor dem Stillstand gemessen wird;
    man keine Neuinitialisierung der Zählung der Länge durchführt und die Zählung an der Stelle, an der man verblieben ist, fortsetzt, und einen Alarm auslöst, um die Gefahr von Anomalien bei der Zählung anzuzeigen, wenn die Drehzahl (Vd), die nach dem Wiedereinschalten gemessen wird, niedriger ist als die Drehzahl (Vo), die man mit der leeren Spule erhält, und höher als die Drehzahl (Va) ist, die unmittelbar vor dem Stillstand gemessen wird;
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass eine Neuinitialisierung der Zählung der Länge durchgeführt und ein Alarm ausgelöst wird, um die Gefahr von Anomalien bei der Zählung anzuzeigen, wenn die Drehzahl (Va), die unmittelbar vor dem Stillstand gemessen wird, im wesentlichen gleich der Drehzahl (Vo) ist, die man mit der leeren Spule erhält.
  7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Drehzahl (Vp), die der endgültigen Meterzahl einer korrekt aufgewickelten Spule entspricht, und/oder die Drehzahl, die dem maximalen Durchmesser der Spule entspricht, die von dem Wicklungssystem gehalten wird, vorher registriert wird.
  8. Verfahren nach den Ansprüchen 4 und 7, dadurch gekennzeichnet, dass die Drehzahl (Va), die unmittelbar vor Stillstand der Produktion gemessen wird, gespeichert wird, so dass:
    - die Unterbrechung der Aufwicklung angeordnet und ein Alarm ausgelöst wird, um anzuzeigen, dass die Spule einen zu großen Durchmesser erreicht hat, wenn die Drehzahl (Vd), die nach dem Wiedereinschalten und/oder während der Produktion gemessen wird, im wesentlichen geringer oder gleich der Drehzahl (Vp) ist, die der endgültigen Meterzahl einer korrekt aufgewickelten Spule entspricht, oder der Drehzahl, die dem maximalen Durchmesser der Spule entspricht, die von dem Wicklungssystem gehalten wird.
  9. Verfahren nach den Ansprüchen 4 und 7, dadurch gekennzeichnet, dass die Drehzahl (Vp), die der endgültigen Meterzahl einer korrekt aufgewickelten und zuvor registrierten Spule entspricht, aufgezeichnet bzw. registriert wird, so dass ein Alarm ausgelöst wird, um anzuzeigen, dass der Enddurchmesser der Spule nicht dem erwarteten Enddurchmesser entspricht, wenn die Drehzahl (Va) der Spule unmittelbar vor dem Stillstand zur programmierten Meterzahl eine andere ist als die Drehzahl (Vp), die der endgültigen Meterzahl entspricht.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass eine Tabelle mit der Drehzahl in Abhängigkeit von der erreichten Meterzahl für eine korrekt aufgewickelte Spule vorher aufgezeichnet bzw. registriert wird, so dass ein Alarm ausgelöst wird, der anzeigt, dass der Durchmesser der Spule nicht dem erwarteten Durchmesser entspricht, wenn die zu jedem Zeitpunkt gemessene Drehzahl der Wicklung eine andere ist als die Drehzahl, die der Meterzahl entspricht, welche in einem bestimmten Augenblick für eine korrekt aufgewickelte Spule erreicht ist.
EP05728067A 2004-03-08 2005-02-18 Verfahren zur neuinitialisierung der zählung von fadenbobinenlängen Not-in-force EP1737776B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0450459A FR2867173B1 (fr) 2004-03-08 2004-03-08 Procede de reinitialisation du comptage de longueur des bobines de fil
PCT/FR2005/050106 WO2005092756A1 (fr) 2004-03-08 2005-02-18 Procede de reinitialisation du comptage de longueur des bobines de fil

Publications (2)

Publication Number Publication Date
EP1737776A1 EP1737776A1 (de) 2007-01-03
EP1737776B1 true EP1737776B1 (de) 2008-04-09

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EP05728067A Not-in-force EP1737776B1 (de) 2004-03-08 2005-02-18 Verfahren zur neuinitialisierung der zählung von fadenbobinenlängen

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US (1) US20070193052A1 (de)
EP (1) EP1737776B1 (de)
AT (1) ATE391691T1 (de)
DE (1) DE602005005977T2 (de)
FR (1) FR2867173B1 (de)
WO (1) WO2005092756A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011132616A (ja) * 2009-12-22 2011-07-07 Toyota Industries Corp 精紡機の管糸径推定装置及び管糸径推定方法
DE102014018635A1 (de) * 2014-12-13 2016-06-16 Saurer Germany Gmbh & Co. Kg Verfahren und Vorrichtung zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1495003A (en) * 1974-08-14 1977-12-14 Kdg Instr Ltd Method and apparatus for measuring length
DE2460252C2 (de) * 1974-12-19 1986-09-04 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren zum Herstellen von Textilspulen vorgegebener Fadenlänge
CH635300A5 (de) * 1979-04-10 1983-03-31 Zellweger Uster Ag Verfahren und vorrichtung zur erzielung vorbestimmbarer und genauer garnlaengen auf kreuzspulen.
US4373266A (en) * 1980-11-05 1983-02-15 Loepfe Brothers Limited Equipment for continuously measuring the length of an endless material being wound up into a circular package
GB8407465D0 (en) * 1984-03-22 1984-05-02 Rieter Ag Maschf Length control in winding of threads
CH675132A5 (de) * 1987-09-01 1990-08-31 Zellweger Uster Ag
EP0952245B1 (de) * 1998-03-27 2003-01-08 Murata Kikai Kabushiki Kaisha Mehrfach-Zwirnmaschine mit Einzelspindelantrieb

Also Published As

Publication number Publication date
WO2005092756A1 (fr) 2005-10-06
EP1737776A1 (de) 2007-01-03
ATE391691T1 (de) 2008-04-15
DE602005005977T2 (de) 2009-05-28
US20070193052A1 (en) 2007-08-23
FR2867173B1 (fr) 2006-04-21
DE602005005977D1 (de) 2008-05-21
FR2867173A1 (fr) 2005-09-09

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