EP1040918B2 - Procédé et dispositif pour amortir les vibrations de torsion d'une machine d'impression - Google Patents

Procédé et dispositif pour amortir les vibrations de torsion d'une machine d'impression Download PDF

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Publication number
EP1040918B2
EP1040918B2 EP00104762A EP00104762A EP1040918B2 EP 1040918 B2 EP1040918 B2 EP 1040918B2 EP 00104762 A EP00104762 A EP 00104762A EP 00104762 A EP00104762 A EP 00104762A EP 1040918 B2 EP1040918 B2 EP 1040918B2
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EP
European Patent Office
Prior art keywords
printing press
torsional vibration
printing
mass
press according
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.)
Expired - Lifetime
Application number
EP00104762A
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German (de)
English (en)
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EP1040918B1 (fr
EP1040918A1 (fr
Inventor
Michael Dr. Merz
Oliver Koch
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1040918A1 publication Critical patent/EP1040918A1/fr
Publication of EP1040918B1 publication Critical patent/EP1040918B1/fr
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Publication of EP1040918B2 publication Critical patent/EP1040918B2/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/008—Mechanical features of drives, e.g. gears, clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/40—Auxiliary devices or processes associated with the drives
    • B41P2213/42—Vibration-dampers for machine parts

Definitions

  • the invention relates to a method and a device for eradicating the torsional vibrations of a printing machine, wherein at least one element that absorbs torsional vibration acts on the gear train of the printing press.
  • Sources of vibration are cylinder channels as well as sheet transfer elements and other discontinuous machine elements. This leads on the one hand to bending vibrations in rollers and cylinders, but also to torsional vibrations of cylinders or drums. The latter usually continue over the gears of the gear train and usually reach higher amplitudes with increasing distance from the drive. Such oscillations can occur angle-synchronously or asynchronously.
  • Bending vibrations are on the one hand by massive construction, on the other hand combated that damping or tilgende elements are arranged in the cylinders.
  • a device known from EP 0 585 897 A1 which is used as a damping measure on rotating bodies in printers or copiers.
  • torsional vibrations is from the EP 0 592 850 B 1 a device and a method is known which provides active actuators, such as motors, to the individual cylinders to control the motors via measurements and controls such that the vibrations arise dampening actuating forces.
  • This measure is associated with a considerable amount of sensor, control and actuator elements.
  • the invention is therefore based on the object largely to reduce speed-dependent Dublierprobleme.
  • essential causes of the duplication problems are determined in a targeted manner and combated spatially and temporally at the location of their occurrence by simple and effective means.
  • the determination of the first and possibly further eigenmodes takes place, for example, by torsional vibration measurement and / or calculation.
  • the oscillations are counteracted in their resonance ranges, that is to say when the eigenmodes and natural frequencies of the printing press occur, in such a way that they are harmless for the printing process and therefore no duplication errors can occur any more. This is done by an appropriate vote of the natural frequency of the mass of the torsional vibration damper, its spring rate and optionally its damping, and by the arrangement of the torsional vibration damper at the critical points of the gear train.
  • the device according to the invention provides the design and arrangement of a torsional vibration damper to the o.g. Effect.
  • the torsional vibration damper in the vicinity of the gear of the driven sheet-guiding element - cylinder or drum - is arranged, which is affected by the vibrations such that there may be a deterioration of the print quality.
  • the arrangement in the vicinity of the gear ensures that the harmful vibration is eliminated before it affects the cylinder or the drum.
  • the vibration reduction takes place in a frequency band around the first natural frequency along the entire drive train of the printing press. It unfolds without any technical control effort and without sensors and actuators an optimal effect at any set printing speed. As a result, no pressure-speed-dependent quality changes due to vibrations in the drive train occur more.
  • a development of the invention provides that the second eigenform and natural frequency of a printing press are measured and that at least the shaft journal of the gears, where the largest amplitudes of the second natural frequency occur, a tuned to the reduction of this second natural frequency passive torsional vibration damper is assigned. As a result, a vibration reduction takes place in a frequency band around the second natural frequency along the entire drive train of the printing press. Of course, even more orders of natural frequencies can be combated in such a way, but as a rule it is sufficient to reduce the first and the second natural frequency in a proposed manner.
  • the characteristics of the torsional vibration dampers are selected according to the measured values such that eradication and damping the torsional vibrations is achieved.
  • the device according to the invention provides for the eradication of the torsional vibrations that at any point of the gear train torsional vibration damper can be arranged. It is envisaged that at the points of the gear train torsional vibration damper are arranged, where the largest torsional vibration amplitudes occur. Since the amplitudes generally increase with increasing distance from the drive, it is expedient that the torsional vibration dampers are arranged on the shaft journals of the cylinders or drums, which are further away from the drive. In a machine with several printing units and a drive in the middle of the machine is proposed that each power transmission side is assigned at least one torsional vibration damper.
  • Torsional vibration dampers are arranged and dimensioned to reduce the first frequency. However, further torsional vibration dampers may be arranged and dimensioned to reduce the second natural frequency. This is usually appropriate because the second natural frequency has a disturbing the print quality strength. Of course, higher orders of natural frequencies can be reduced in this way, but usually the reduction of the first and the second order is sufficient.
  • An optimal vibration reduction is achieved in that the Drehschwingungstliger is a damped absorber. Such absorbers have a mass which is articulated by means of spring and damping elements at the critical points of the drive train.
  • the damped absorber consists of at least one mass and at least one elastomer interposed between a carrier and the mass, the elastomer having spring and damping characteristics.
  • a second embodiment provides that the damped absorber consists of at least one mass and spring elements and damping elements which are arranged between the mass and a carrier.
  • the damping elements are expediently arranged to act in the circumferential direction.
  • the damping elements can be cylinders with pistons, wherein a damping medium can flow through a gap on the piston.
  • the spring elements are expediently arranged to act in the circumferential direction.
  • a further embodiment provides for reducing the first and second eigenform and natural frequency of the printing press to form a torsional vibration damper as a two-stage torsional vibration damper.
  • first resilient and damping elements between the carrier and the mass are arranged and that second resilient and damping elements between the mass and another mass are arranged, wherein one of the resilient and damping elements with the associated mass to reduce the first and the other resilient and damping element is formed and dimensioned with the associated mass for reducing the second eigenmode and natural frequency.
  • the damped torsional vibration damper for controlling the first and second natural frequency can be arranged independently of each other on the cylinder pin. It is also possible to arrange both absorbers side by side on the same flange and assign such a double absorber to a cylinder or a drum.
  • Fig. 1 shows a printing machine 1 with the torsional vibration damping according to the invention.
  • the printing machine 1 consists of five printing units 7, 7 ', 7 ", 7"', 7 “", which are driven by a gear train 2 by a drive 8.
  • the number of printing units is of course only exemplary.
  • the drive 8 is expediently arranged in the middle region of the printing machine 1 in order to keep the moment of force to be transmitted as low as possible.
  • Each printing unit 7, 7 ', 7 ", 7"', 7 “” is associated with a printing cylinder 4 and between the printing units are drums 4 'for transferring the sheet from one printing unit to another.
  • the cylinders 4 or the drums 4 ' are equipped with toothed wheels 6, 6', 6 ", ..., which mesh with one another to form the toothed wheel train 2.
  • torsional vibrations occur, as a rule these are slight in the case of the drive 8 and increase with increasing distance from the drive 8.
  • the first and possibly also the second eigenform and natural frequency as well as the location of the occurrence of the same is determined by rotational vibration measurement in order to determine specific points on this natural frequency and Eigenform tuned passive torsional vibration damper 5, 5 'use.
  • torsional vibration dampers 5, 5 ' have been used on one or more outer printing units 7, 7', 7 "'and 7". "In such a machine with the drive 8 in the middle region, each power transmission side 9 and 9' should be regularly at least one torsional vibration damper 5, 5 'are assigned.
  • Fig. 2 shows the arrangement of a first embodiment of a torsional vibration damper 5 or 5 '. Shown is a cylinder 4 or a drum 4 ', which is supported by bearings 20 on both sides in the side walls 19 of the printing press. Shown is the side wall 19 of the drive side. On this side is located on the shaft journal 3, the gear 6, 6 ', 6 ", ..., which is driven via the gear train 2 of the printing machine 1. If for this cylinder 4 or drum 4' corresponding amplitudes of the natural frequency were measured , the shaft journal 3 is provided according to the invention with a torsional vibration damper 5 or 5 '.
  • the illustrated first embodiment of a torsional vibration damper 5, 5 ' consists of a carrier 14, for example a flange, which is mounted on the shaft journal 3.
  • a carrier 14 On this support 14 is an elastomer 11, which carries a ring 10 formed as a mass.
  • the elastomer 11 is designed to have erosion and damping characteristics.
  • Fig. 3 shows a second embodiment of a torsional vibration damper 5, 5 '.
  • the repayment properties are achieved by means of concrete spring elements 12 and the damping properties by concrete damping elements 13 in this. These are arranged as in the embodiment described above between a flange-like carrier 14 and the mass 10.
  • the damping elements 13 consist of closed cylinders 15 in which pistons 16 run, the pistons 16 having a gap 18 through which a damping medium 17 can flow from one space to the other.
  • Fig. 4 shows a first embodiment of a two-stage torsional vibration damper 21.
  • a carrier 14 with an elastomer 11 and a mass 10 is arranged.
  • On the mass 10 is another elastomer 11 'with a further mass 10'.
  • a vibration having first and second order amplitudes can be reduced.
  • Fig. 5 shows a second embodiment of a two-stage torsional vibration damper 21.
  • the two torsional vibration dampers 5 and 5 'on a support 14 are arranged side by side.
  • the invention can be realized with many other embodiments, for example, the two-stage torsional vibration damper of 4 and 5
  • other embodiments of the damping 13 and spring elements 12 are conceivable or an embodiment in which a mass 10 or 10 'disc-shaped with the insertion of a deleting and / or damping element 11, 1', 12, 13 sits on the front side of the shaft journal 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Vibration Prevention Devices (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (11)

  1. Machine à imprimer comprenant un dispositif pour l'amortissement de vibrations torsionnelles de la machine à imprimer (1) et des groupes d'impression (7, 7', 7", 7''', 7''''...) et un entraînement (8) ainsi qu'un train de roues dentées (2), chaque groupe d'impression (7, 7', 7", 7''', 7'''' ... ) étant attribué à un cylindre d'impression (4), des tambours (4') se trouvant entre les groupes d'impression (7, 7', 7", 7''', 7''''...) pour le transfert de feuilles d'un groupe d'impression (7, 7', 7", 7''', 7''''...) à l'autre, les groupes d'impression (7, 7', 7", 7"', 7''''...) étant entraînés via le train de roues dentées (2) par l'entraînement (8), les cylindres d'impression (4) et les tambours (4') étant munis de roues dentées (6, 6', 6") qui s'engrènent mutuellement en formant le train de roues dentées (2) et se trouvant sur des tourillons d'arbre (3) des cylindres d'impression (4) et des tambours (4'), et au moins un élément qui absorbe les vibrations agissant sur le train de roues dentées (2), caractérisée en ce que sur des tourillons d'arbre (3) des cylindres d'impression (4) ou tambours (4, 4') entraînés par le train de roues dentées (2), il est disposé un amortisseur respectif passif de vibrations torsionnelles (5, 5', 21) à proximité de la roue dentée respective (6, 6', 6'',...) qui est ajustée à une première fréquence propre déterminée de la machine d'impression et qui est disposée aux emplacements du train de roues dentées (2) sur lesquels se manifestent les amplitudes maximales des vibrations torsionnelles de la première fréquence propre de la machine d'impression (1), les amortisseurs de vibrations torsionnelles (5) étant disposés et dimensionnés pour obtenir une réduction de la première propre fréquence de la machine à imprimer (1).
  2. Machine à imprimer selon la revendication 1, caractérisée en ce que dans le cas d'un entraînement (8), au moins un amortisseur de vibrations torsionnelles (5, 5', 21) est attribué à chaque côté de transmission de force (9, 9') dans la zone du centre de la machine.
  3. Machine à imprimer selon la revendication 1 ou 2, caractérisée en ce qu'au moins un autre amortisseur de vibrations torsionnelles (5') est disposé et dimensionné pour la réduction de la seconde fréquence propre.
  4. Machine à imprimer selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'amortisseur de vibrations torsionnelles (5, 5', 21) est un amortisseur amorti.
  5. Machine à imprimer selon la revendication 4, caractérisée en ce que l'amortisseur amorti de vibrations torsionnelles (5, 5', 21) se compose au moins d'une masse (10. 10') et d'au moins un élastomère (11, 11') qui est inséré entre un support (12) et la masse (10, 10'), l'élastomère (11, 11') présentant des propriétés d'élasticité et d'amortissement.
  6. Machine à imprimer selon la revendication 4, caractérisée en ce que l'amortisseur amorti de vibrations torsionnelles (5, 5', 21) se compose au moins d'une masse (10. 10') et d'éléments de ressort (12) ainsi que des éléments d'amortissement (13) qui sont disposés entre la masse (10, 10') et un support (14).
  7. Machine à imprimer selon la revendication 6, caractérisée en ce que les éléments d'amortissement (13) sont disposés en agissant dans le sens périphérique.
  8. Machine à imprimer selon la revendication 7, caractérisée en ce que les éléments d'amortissement (13) sont des cylindres (15) avec piston (16), un fluide d'amortissement (17) pouvant circuler à travers une fente (18) sur le piston (16).
  9. Machine à imprimer selon l'une des revendications 6 à 8, caractérisée en ce que les éléments de ressort (12) sont disposés en agissant dans le sens périphérique.
  10. Machine à imprimer selon l'une des revendications 1 à 9, caractérisée en ce que les amortisseurs de vibrations torsionnelles (5, 5') pour la réduction des premières et secondes formes et fréquence propre de la machine à imprimer sont conçus comme des amortisseurs de vibrations torsionnelles à deux niveaux (21).
  11. Machine à imprimer selon la revendication 5 ou 6, caractérisée en ce que des premiers éléments (11, 12, 13) amortisseurs faisant ressort sont disposés entre le support (14) et la masse (10) et en ce que des seconds éléments (11', 12, 13) amortisseurs faisant ressort sont disposés entre la masse (10) et une autre masse (10'), l'un des éléments (11, 12, 13, 11') amortisseurs faisant ressort étant conçu et dimensionné avec la masse respective (10, 10') pour la réduction des premières forme et fréquence propre et l'autre élément (11, 12, 13 ; 11') amortisseur et faisant ressort étant conçu et dimensionné avec la masse (10 ; 10') pour la réduction des secondes forme propre et fréquence propre.
EP00104762A 1999-03-31 2000-03-04 Procédé et dispositif pour amortir les vibrations de torsion d'une machine d'impression Expired - Lifetime EP1040918B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914613A DE19914613A1 (de) 1999-03-31 1999-03-31 Verfahren und Vorrichtung zur Tilgung der Drehschwingungen einer Druckmaschine
DE19914613 1999-03-31

Publications (3)

Publication Number Publication Date
EP1040918A1 EP1040918A1 (fr) 2000-10-04
EP1040918B1 EP1040918B1 (fr) 2004-07-14
EP1040918B2 true EP1040918B2 (fr) 2012-01-25

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ID=7903081

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EP00104762A Expired - Lifetime EP1040918B2 (fr) 1999-03-31 2000-03-04 Procédé et dispositif pour amortir les vibrations de torsion d'une machine d'impression

Country Status (5)

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US (1) US6499401B1 (fr)
EP (1) EP1040918B2 (fr)
JP (1) JP2000313099A (fr)
AT (1) ATE270967T1 (fr)
DE (2) DE19914613A1 (fr)

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DE19963945C1 (de) * 1999-12-31 2001-07-19 Koenig & Bauer Ag Verfahren und Anordnung zur Kompensation von Schwingungen rotierender Bauteile
DE10249475A1 (de) 2001-11-20 2003-09-11 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zum Unterdrücken von Schwingungen in einer drucktechnischen Maschine
DE10248519B4 (de) * 2002-10-17 2006-11-02 Voith Patent Gmbh Mittelwalze eines Kalanders und Kalander
DE102007015345A1 (de) * 2007-03-30 2008-10-02 Koenig & Bauer Aktiengesellschaft Vorrichtung zur Reduzierung von Schwingungen einer Greiferwelle
DE102008054192A1 (de) 2008-10-31 2010-05-06 Manroland Ag Druckeinheit
DE102009046745A1 (de) * 2009-11-17 2011-05-19 Man Diesel & Turbo Se Kurbelwelle
DE102010026204A1 (de) * 2010-07-02 2012-01-05 Fakultät Ingenieurwissenschaften und Informatik Fachhochschule Onsabrück Verfahren sowie Vorrichtung zur Kompensation von über den Umfang eines rotierenden insbesondere zylindrischen, Bauteils, insbesondere einer Walze, periodisch wiederkehrenden Störanregungen sowie Verfahren zur Bestimmung der Oberflächenstruktur eines ringförmigen Profils zur Kompensation der Störanregungen
DE102022212522A1 (de) * 2022-11-23 2024-05-23 Zf Friedrichshafen Ag Zahnrad oder Welle mit Schwingungstilger
DE102023135919A1 (de) 2023-12-20 2025-06-26 Mahle International Gmbh Dämpfungselement für ein Elektrofahrrad und ein Elektrofahrrad

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Also Published As

Publication number Publication date
DE50007037D1 (de) 2004-08-19
JP2000313099A (ja) 2000-11-14
EP1040918B1 (fr) 2004-07-14
EP1040918A1 (fr) 2000-10-04
US6499401B1 (en) 2002-12-31
DE19914613A1 (de) 2000-10-05
ATE270967T1 (de) 2004-07-15

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