EP1681255B1 - Changeur de rouleaux pour alimenter une bande de matériau - Google Patents

Changeur de rouleaux pour alimenter une bande de matériau Download PDF

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Publication number
EP1681255B1
EP1681255B1 EP05108922A EP05108922A EP1681255B1 EP 1681255 B1 EP1681255 B1 EP 1681255B1 EP 05108922 A EP05108922 A EP 05108922A EP 05108922 A EP05108922 A EP 05108922A EP 1681255 B1 EP1681255 B1 EP 1681255B1
Authority
EP
European Patent Office
Prior art keywords
reel
web
oscillation
changer according
residual
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.)
Not-in-force
Application number
EP05108922A
Other languages
German (de)
English (en)
Other versions
EP1681255A3 (fr
EP1681255A2 (fr
Inventor
Anton Löffler
Thomas Potzkai
Walter Ritter
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1681255A2 publication Critical patent/EP1681255A2/fr
Publication of EP1681255A3 publication Critical patent/EP1681255A3/fr
Application granted granted Critical
Publication of EP1681255B1 publication Critical patent/EP1681255B1/fr
Not-in-force 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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B65H26/025—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs responsive to web breakage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to a predetermined diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/14—Diameter, e.g. of roll or 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
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/50—Vibrations; Oscillations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/416—Array arrangement, i.e. row of emitters or detectors

Definitions

  • the invention relates to a roll changer for feeding a material web according to the preamble of claim 1.
  • Reel changers are used on printing machines and serve to supply the material web used as printing material.
  • paper webs are used as a rule. The material web is wound on a roll of material and runs from this roll of material.
  • a roller carrier and a method for determining intrinsic forces and determining the length of a web of material on a supply roll in a roller carrier are known.
  • the web length of a supply and / or a residual role can be determined.
  • an imbalance of the supply roll can be signaled, which can be caused by incorrect clamping or a deformed supply roll.
  • the DE 600 02 582 T2 describes a device for unwinding a paper web, wherein by means of two laser measuring devices, the shape of the cross section of the paper roll is measured.
  • the DE 103 21 359 B3 , the DE 100 44 861 A1 , the DE 44 41 980 A1 , the DE 196 14 300 B4 and the DE 201 14 750 U1 disclose various measuring methods to determine deviations in shape of rotational bodies, in particular material rolls.
  • the US 5 241 906 A discloses a roll changer for feeding a material web, in whose recordings a running residual role are rotatably mounted on a prepared for reel change follower roller. Vibrations can occur in this reel changer.
  • the US 2002/0154205 A1 discloses a sensor for detecting vibrations on a paper roll.
  • the invention is based on the object reel changer for maximum utilization of
  • the achievable with the present invention consist in particular that material rolls can be rolled in reel changers with constant web speed up to a minimum residual roll diameter and the flying web change can also be performed at the normal web speed, which allows the printing process continuously at maximum capacity of the machine capacity to drive.
  • a measurement of the vibrations on the residual rolls makes it possible to stop the residual roll when critical vibration conditions are reached. Also can be determined from the vibration behavior of the residual role of the residual roll diameter to initiate, for example, a flying role change at a predetermined value. With the method and the device for measuring the vibrations, it is also possible to measure new web widths and types of sleeves during operation in the reel changer in order to determine their maximum utilization and the maximum possible web tension.
  • the invention is based essentially on the finding that, contrary to the manufacturer's instructions for the oscillation amplitudes of different types of sheaths and web widths, substantially lower oscillations of the supply rolls in the region just before the change of the material webs can be achieved. It has been found that the web pull in the reel splicer acts as an additional bearing which extends over the entire roll width and thereby greatly dampens the vibrations of the roll of material, thereby providing the above advantages.
  • the measurement of the vibrations is preferably carried out by optical displacement measuring systems, which allow a non-contact measurement.
  • a preferred measuring system consists of a laser-optical triangulation sensor and a controller as an evaluation system.
  • a point of light is projected onto the measurement object, here preferably the roller surface, and diffusely reflected there. This point is imaged via a lens on a position sensor.
  • the sensor provides a position-dependent signal that is proportional to the measurement path.
  • a sensor is positioned on the device so that a laser beam emitted by the sensor impinges almost perpendicular to the surface of the roller.
  • the sensors are preferably mounted on the roller carrier, the center of the roller being preferred as the measuring position, since the greatest vibration amplitudes are to be expected here.
  • these sensors provide a distance signal which is acquired and processed by an evaluation system.
  • the signal may be digital or analog, and either passed to a computer system which controls, for example, the entire system, or fed as an analog signal to an evaluation circuit.
  • the evaluation circuit can at the corresponding signal levels, z. B. due to excessive deflection, excessive vibration or imbalance of the roll of material, a roll stop (especially emergency stop) or initiate a role change.
  • the evaluation system can deliver a difference signal in a further embodiment, which is adjusted to any disturbances, such as concentricity error.
  • a difference signal in a further embodiment, which is adjusted to any disturbances, such as concentricity error.
  • the distances between sensor and roller surface measured in the middle of the roller and on the sides of the roller are continuously determined and the oscillation amplitude is determined by the evaluation system from the difference signal from the sensors.
  • the oscillation amplitude is largest in the center of the roll and smallest at the clamping points, the exact oscillation can be formed from the difference of the two distance signals. Immanent concentricity errors inherent in the respective roll of material, which result in a change in distance between the sensor and the roll surface, but do not indicate excessive vibration, can be filtered out at several points along the roll of material by the multiple detection. Since the oscillation amplitudes are very small, this difference measurement determines the oscillation amplitude more accurately and avoids the risk of a "false alarm".
  • the evaluation system can receive a trigger from the cutting blade, so that a certain amount of time can be recorded before and after the roll change. If, for example, new types of rolls are measured, then in evaluation of the records, the web tension can be gradually increased and the residual roll diameter can be reduced until the optimum utilization is achieved.
  • the vibration path monitoring is then preferably used to control the operation and to avoid critical operating states, wherein the evaluation system can trigger the trigger when exceeding or falling below predefined values of the vibration amplitudes, which are further processed by the system.
  • the device provides a separate sensor for each roll holder in a roll changer.
  • the vibration of the running material roll but also the vibration of the roll change to be accelerated roll of material can be monitored.
  • a portable device for use on various roll carriers can also be used to measure the vibrations, for example to measure new types of reels, new role carriers or new recordings on reel splitter.
  • a device that contains a displacement sensor and an evaluation system for example, be placed under the roll of material. Then, the measurement can be carried out in the regular operation of the reel changer, and with the obtained measurement results, the web tension during roll change and the minimum possible residual roll thicknesses can be optimized.
  • a preferably optical sensor such.
  • a light barrier attached near the roll of material that provides a web break signal in a web break, which is used to decelerate the remaining role and possibly to shutdown the machine.
  • Fig. 1 is an embodiment of a roll exchanger 01 for feeding a web of material 02, in particular a paper web, shown schematically in a printing press, not shown.
  • a roll carrier 04 which is pivotable about a pivot axis 03, is provided, which is formed by two support arms 04 arranged one behind the other in the image plane.
  • At the free ends of the roller carrier 04 are each mounted opposite each other recordings, between which material rolls are clamped on the paster 01.
  • On reel changer 01 in the process state shown a running material roll 06, z. B. Restrolle 06 and a prepared for the flying role change, new roll of material 07 clamped.
  • the roller carrier 04 was previously in the in Fig.
  • Fig. 2 is a simplified cross section through the roller carrier 04 shown in the middle of the roller or web.
  • Two vibration sensors 12 are preferably mounted on the pivot axis 03 at the level of the center of the track, so that a measuring beam 14 emitted by the vibration sensor 12 impinges almost perpendicular to the roll of material 06 or 07. From there it is reflected and converted by a position sensor contained in the vibration sensor 12 into a signal which is transferred to an evaluation system.
  • By an appropriate assembly ensures that the relative position of the vibration sensors 12 remains unchanged to the material rolls 06 and 07, when the rolls of material 06; 07 are pivoted when changing roles. Thus, an uninterrupted measurement of the vibrations is possible.
  • a sensor 16 As close as possible to the running material roll 06 is a sensor 16, z. B. a Brurisssensor 16, which may be a photoelectric sensor, photocell or the like, which gives a signal to brake the residual role 06 or to stop the system when no more paper web is detected by sensor 16.
  • a Bahnrisssensor 16 Preferably, two web break sensors 16 are also used here, which are fixedly mounted on the roller carrier 04, so that each roll of material 06; 07 a sensor 16 is assigned, which is pivoted with the flying role change.
  • the Brurisssensoren 16 are also connected to the evaluation system and the entire system.
  • Fig. 3 shows a simplified representation of a part of a roller carrier 04 with a running material roll 06, which is clamped by means of clamping cones 17 in the support arms 04 of the roller carrier 04.
  • a first of the three vibration sensors 12 is arranged approximately in the middle of the track, where the highest vibration amplitudes are to be expected.
  • the two other sensors 12, however, are positioned at the edges of the running material roll 06, where the roll of material 06 is clamped in the clamping cones 17.
  • a second sensor 12 is provided only at one edge of the roll of material 06. If one considers not only every single sensor signal supplied by the sensors 12 but also the differences between these signals, non-vibration-based distance changes between the sensor 12 and the material roll 06 can be eliminated. This makes it possible to take into account less or not at all the distance changes resulting in particular from concentricity errors, which are of little significance for the vibration behavior, if a reduction of the speed of the material roll 06 has to be decided on the basis of the sensor signals. A quick stop or deceleration of the machine is only required if there is a risk of machine damage due to increased vibrations. Concurrent errors attributable to run-out errors of the machine can by this measuring principle be avoided.
  • FIG. 4 This is done using the simplified diagram representation in Fig. 4 understandable, in which the envelopes are reproduced from recorded vibration paths.
  • the two dashed lines 18 show the course of the vibration paths of a rotating rest roller 06 again, if this is not damped by the train. It can be seen that the vibration path increases with time from about 1.3 to 2.3 mm, although the rotational speed of the residual roll 06 does not increase (ie no further unwinding of material).
  • the measured values enclosed by the envelope 18 were recorded on a residual roll 06 having a diameter of 188 mm (including the remaining material) and a width of 4,290 mm. The speed corresponded to a web speed of 15.5 m / s.
  • a comparable rocking of the vibration paths can occur in the event of a web break. In order to prevent this, it is important in this case to stop the machine as quickly as possible.
  • the web tear sensor 16 described above which is to be installed as close as possible to the remaining roll 06, is used.
  • the continuous drawn envelope 20 shows the oscillation path of the residual roll 06 during the continuous unwinding of the material web 02, so that a continuous web train acts on the rest roller 06.
  • the Web tension exerts a strong damping effect on the vibration behavior of the rest roller 06.
  • an increase in the vibration path would actually be expected with the passage of time, despite decreasing residual thickness of the material remaining on the remaining roller 06 and concomitant increase in the rotational speed of the rest roller 06, the oscillation travel is reduced if the high web speed is maintained unchanged.
  • the speed of the remaining roller 06 during the symbolized by the envelope 20 measurement rose from 20 to 24.4 Hz. This can be explained by the fact that the weight load of the remaining roll 06 by the paper decreases during the unwinding process.
  • the in Fig. 3 plotted curves it can be seen that the vibration of the residual role 06 without web train is about 9 times greater than with web tension.
  • the correct understanding of the oscillatory behavior of the running residual roll can also be used to initiate the roll change depending on the actually measured vibrations. This allows role-specific differences to be automatically taken into account so that every roll of material can be optimally handled without the risk of damage to the roll changer.
  • the width of the material rolls 06; 07 can be larger than 2 m.
  • the width of the material rolls 06; 07 can be larger than 4 m.
  • An inner diameter of a material carrying the sleeve can be between 70 and 80 mm.
  • An inner diameter of a material carrying the sleeve can be between 140 and 160 mm.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Claims (18)

  1. Changeur de rouleaux (01) pour l'amenée d'une bande de matériau (02), dans les logements duquel au moins un rouleau résiduel (06) en dévidement et au moins un rouleau successeur (07), préparé pour le changement de rouleau, sont montés en palier de manière susceptible de tourner, caractérisé en ce qu'un capteur de vibrations (12) mesure les vibrations se produisant radialement par rapport à l'axe de rotation (10) du rouleau résiduel (06), et en ce que le capteur de vibrations (12) est disposé en mesurant l'espacement entre la surface d'enveloppe du rouleau résiduel (06) et le capteur de vibrations (12), et en ce que le capteur de vibrations (12) retransmet à un système d'évaluation un signal de mesure représentant les vibrations.
  2. Changeur de rouleaux selon la revendication 1, caractérisé en ce que le capteur de vibrations (12) est un premier capteur de vibrations (12), et en ce que l'agencement comprend en outre au moins un deuxième capteur de vibrations (12), en ce que le système d'évaluation détermine la différence des courses de vibrations déterminées par ces deux capteurs de vibrations (12) et retraite seulement cette différence en tant que course de vibration effective du rouleau résiduel (06).
  3. Changeur de rouleaux selon la revendication 1 ou 2, caractérisé en ce que le capteur de vibrations (12) est disposé à peu près au centre du rouleau résiduel (06).
  4. Changeur de rouleaux selon la revendication 2, caractérisé en ce que le deuxième capteur de vibrations (12) est disposé sur le bord enserré du rouleau résiduel (06).
  5. Changeur de rouleaux selon la revendication 2, caractérisé en ce que des deuxièmes capteurs de vibrations (12) sont disposés sur les deux bords du rouleau résiduel (06).
  6. Changeur de rouleaux selon la revendication 1, caractérisé en ce que le système d'évaluation fournit un déclenchement pour le changeur de rouleaux, lorsque l'amplitude de vibration mesurée par le système de mesure descend au-dessous d'une valeur limite prédéterminée.
  7. Changeur de rouleaux selon la revendication 1, caractérisé en ce que la détection de l'amplitude de vibration s'effectue au moyen d'une mesure de course de déplacement optique faite sans contact.
  8. Changeur de rouleaux selon la revendication 7, caractérisé en ce que la détection de l'amplitude de vibration s'effectue au moyen d'une mesure de course de déplacement optique à laser, selon le principe de la triangulation.
  9. Changeur de rouleaux selon la revendication 1, caractérisé en ce qu'un capteur de rupture de bande (16), surveillant la bande de matériau (02), est disposé, délivrant un signal de rupture de bande au système d'évaluation, lorsque la bande de matériau (02) se déchire, à la suite de quoi le système d'évaluation freine le rouleau résiduel (06).
  10. Changeur de rouleaux selon la revendication 1, caractérisé en ce que le changeur de rouleaux (01) ne réduit pas la vitesse de bande de la bande de matériau (02) en dévidement du rouleau résiduel (06), avant la liaison à la bande de matériau du nouveau rouleau de matériau (07).
  11. Changeur de rouleaux selon la revendication 10, caractérisé en ce que, lors du changement de rouleau, la vitesse de bande est supérieure à 12 m/s, en particulier supérieure à 14 m/s.
  12. Changeur de rouleaux selon la revendication 1, caractérisé en ce que la largeur des rouleaux de matériau (06 ; 07) est supérieure à 2 m.
  13. Changeur de rouleaux selon la revendication 1, caractérisé en ce que la largeur des rouleaux de matériau (06 ; 07) est supérieure à 4 m.
  14. Changeur de rouleaux selon la revendication 1, caractérisé en ce qu'un diamètre intérieur d'une douille, portant la bande de matériau, est dans la fourchette comprise entre 70 et 80 mm.
  15. Changeur de rouleaux selon la revendication 1, caractérisé en ce qu'un diamètre intérieur d'une douille, portant la bande de matériau, est dans la fourchette comprise entre 140 et 160 mm.
  16. Changeur de rouleaux selon la revendication 1, caractérisé en ce que le système d'évaluation réduit la vitesse de bande lorsque l'amplitude de vibration, mesurée par le système de mesure, dépasse une valeur limite prédéterminée.
  17. Changeur de rouleaux selon la revendication 1, caractérisé en ce qu'à chaque logement à rouleau du changeur de rouleaux (01) est associé un capteur de vibrations (12) propre.
  18. Procédé de fonctionnement d'un changeur de rouleaux selon la revendication 1, caractérisé en ce que les étapes suivantes sont en plus accomplies :
    - affectation d'une valeur minimale et/ou d'une valeur maximale de l'amplitude de vibration dans l'unité d'évaluation, et
    - édition d'un signal de commande au moyen de l'unité d'évaluation, lors du franchissement en valeur supérieure ou en valeur inférieure des valeurs prédéterminées.
EP05108922A 2005-01-15 2005-09-27 Changeur de rouleaux pour alimenter une bande de matériau Not-in-force EP1681255B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005002030A DE102005002030B4 (de) 2005-01-15 2005-01-15 Rollenwechsler zur Zuführung einer Materialbahn

Publications (3)

Publication Number Publication Date
EP1681255A2 EP1681255A2 (fr) 2006-07-19
EP1681255A3 EP1681255A3 (fr) 2007-12-26
EP1681255B1 true EP1681255B1 (fr) 2011-08-31

Family

ID=35735125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05108922A Not-in-force EP1681255B1 (fr) 2005-01-15 2005-09-27 Changeur de rouleaux pour alimenter une bande de matériau

Country Status (3)

Country Link
EP (1) EP1681255B1 (fr)
AT (1) ATE522459T1 (fr)
DE (1) DE102005002030B4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008022634A1 (de) * 2008-05-08 2009-11-12 Manroland Ag Verfahren zum Betreiben einer Druckmaschine
DE102011080732B4 (de) 2011-08-10 2017-09-07 Koenig & Bauer Ag Verfahren zum Betreiben einer Rollenabspulvorrichtung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2018494A1 (de) * 1970-04-17 1971-11-04 Jagenberg Werke Ag Verfahren und Vorrichtung zum Auf wickeln von Papier oder anderen Werk Stoffbahnen mit Hilfe einer Rollen schneide und Umwickelmaschine
DE2318351C2 (de) * 1973-04-12 1975-03-20 J.M. Voith Gmbh, 7920 Heidenheim Trageinrichtung für eine Wickelrolle
DE7609748U1 (de) * 1976-03-30 1978-09-07 Bruene, Bernhard, 5276 Wiehl Wickelmaschine fuer folien
JPH0699057B2 (ja) 1992-07-08 1994-12-07 株式会社東京機械製作所 巻取紙輪転機の給紙装置
DE4341800C2 (de) * 1993-12-08 2000-02-03 Koenig & Bauer Ag Rollenträger
DE4441980A1 (de) * 1994-11-25 1996-05-30 Agfa Gevaert Ag Walzengleichlaufkontrollvorrichtung
DE19614300B4 (de) * 1995-04-21 2004-08-26 Abb Patent Gmbh Verfahren zur selbstregulierenden Kompensation der Auswirkung des ungleichmäßigen Rundlaufs einer Rolle
FI105803B (fi) * 1999-03-30 2000-10-13 Valmet Corp Menetelmä ja laitteisto paperirullan jatkuvatoimisessa aukirullauksessa
DE10044861B4 (de) * 1999-09-29 2010-09-02 Heidelberger Druckmaschinen Ag Wickelverfahren und -vorrichtung für bedruckstoffverarbeitende Maschinen
JP2002308525A (ja) 2001-04-18 2002-10-23 Fuji Photo Film Co Ltd 記録紙先端検出装置
DE20114750U1 (de) * 2001-09-06 2002-11-28 Brueckner Maschbau Anordnung zum Betrieb einer Kontaktwalze
DE10321359B3 (de) * 2003-05-13 2004-11-11 Koenig & Bauer Ag Sensoranordnung an einem Rotationskörper sowie Rotationskörper

Also Published As

Publication number Publication date
ATE522459T1 (de) 2011-09-15
DE102005002030B4 (de) 2007-08-30
EP1681255A3 (fr) 2007-12-26
DE102005002030A1 (de) 2006-09-14
EP1681255A2 (fr) 2006-07-19

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