EP0829352B1 - Procédé de diagnose pour une machine rotative - Google Patents

Procédé de diagnose pour une machine rotative Download PDF

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Publication number
EP0829352B1
EP0829352B1 EP97115305A EP97115305A EP0829352B1 EP 0829352 B1 EP0829352 B1 EP 0829352B1 EP 97115305 A EP97115305 A EP 97115305A EP 97115305 A EP97115305 A EP 97115305A EP 0829352 B1 EP0829352 B1 EP 0829352B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
components
signal
rotary printing
rubber
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
EP97115305A
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German (de)
English (en)
Other versions
EP0829352A3 (fr
EP0829352A2 (fr
Inventor
Reinhard Georg Gross
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
Priority to EP00128645A priority Critical patent/EP1110730B1/fr
Publication of EP0829352A2 publication Critical patent/EP0829352A2/fr
Publication of EP0829352A3 publication Critical patent/EP0829352A3/fr
Application granted granted Critical
Publication of EP0829352B1 publication Critical patent/EP0829352B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/04—Conveying or guiding webs through presses or machines intermittently

Definitions

  • the invention relates to methods for diagnosing a Rotary printing machine according to the Claims 1 or 2.
  • a disadvantage of the diagnostic methods shown is that angular deviations are not sufficient Accuracy can be recorded.
  • DE 41 36 785 A1 discloses a diagnostic device for a clock generation device on printing machines. There is an encoder on a single-speed shaft arranged.
  • the magazine "Der Polygraph" 10-74, pages 729, 730, 732, 734 describes two cylinders To arrange torsional vibration sensors. Their signals are related to a relationship between duplicates and torsional vibrations evaluated.
  • the invention has for its object methods for To provide diagnosis of a rotary printing press.
  • the printing units of which each have their own position-controlled drive motor the rotary pulse generators which are already present for regulating the drive motor are used.
  • the output signals of the existing rotary pulse generators are evaluated, whereby the additional effort for the diagnostic system according to the invention is low.
  • the state of wear of the entire printing unit ie also components that are not provided with a rotary pulse generator, can be inferred, since neighboring components also influence a torsional vibration behavior of the component provided with the rotary pulse generator.
  • processing the output signal of the rotary pulse generator in frequency spectra and assigning typical frequencies to certain components, it can be concluded that the component has wear or damage.
  • the diagnostic system according to the invention is in the drawing shown and is described in more detail below.
  • a web 1 is by means of printing units 2, in example shown four printing units 2, in the beautiful and reverse printing in a web-fed rotary printing press printed.
  • Each of these printing units 2 is in Bridge construction symmetrical to lane 1.
  • Side frames 3 of these printing units 2 are each two blanket cylinders 4, two plate cylinders 6 and the associated inking or dampening units 7, 8 stored.
  • the Inking units 7 are in the present example as Anilox short inking units, each consisting of one Ink transfer roller 9, an anilox roller 11 and one Doctor device 12, executed.
  • the dampening units 8 are for example, designed as spray dampers and consist essentially of three Dampening solution transfer rollers 13, 14, 16 and one with these cooperating spray device 17th
  • the rubber and plate cylinders 4, 6 of a printing unit 2 are connected to one another, for example, via gear transmissions, not shown.
  • Each printing unit 2 is driven by its own drive motor.
  • This drive motor is e.g. B. flanged directly to the respective rubber cylinder 4 or drives it, for example, by means of an intermediate pinion.
  • This rubber cylinder 4 is equipped with a position encoder designed as an angular position encoder, e.g. B. a rotary encoder 18, 19, 21, 22 (z. B. incremental encoder or resolver) provided.
  • the printing units 2 can be connected synchronously by means of a standing shaft. It is also possible to provide each rubber and plate cylinder 4, 6 with its own motor.
  • each rubber and plate cylinder 4, 6 with its own angular position encoder for. B. a rotary encoder 18, 19, 21, 22 may be equipped.
  • an evaluation device 23 essentially consists of four measuring cards 24, 26, 27, 28 assigned to the rotary pulse generators 18, 19, 21, 22, a time base 31, a control unit 32, a data memory 33 and a digital I / A assigned to a computer 34.
  • O card 36 The four measuring cards 24, 26, 27, 28, each connected to a rotary pulse generator 18, 19, 21, 22, are synchronized by the time base 31.
  • this control unit 32 is linked to the time base 31, the data memory 33 and the digital I / O card 36.
  • a reference psychronization for a start pulse is located on the control unit 32 in order to start all measuring cards 24, 26, 27, 28 simultaneously.
  • the control unit 32 controls a measurement period, a number of revolutions, the time base 31 and outputs data to the I / O card 36.
  • the data memory 33 is also connected to each measuring card 24, 26, 27, 28.
  • the digital I / O card 36 connects this evaluation device 23 to the computer 34. Settings of the control unit 32 and data transfer are carried out via this I / O card 36.
  • the rotary pulse generators 18, 19, 21, 22 each generate three signals, for example by means of a graduated disk provided with optical markings, which is scanned by opto-electrical converters.
  • the first signal provides a reference pulse, the other two signals offset by 90 ° to each other z. B. 4096, meandering pulses per revolution.
  • the reference pulse and the two signals are fed to the evaluation device 23, which records all signals synchronously in time.
  • a reference signal is also fed to the evaluation device 23.
  • This reference signal consists of a temporally constant pulse sequence, the constant frequency of which is substantially higher than a frequency of the signals of the rotary pulse generators 18, 19, 21, 22.
  • This high-frequency reference signal is generated by means of an oscillator, e.g. B. a quartz crystal.
  • Signals can optionally be compared with one another in the downstream computer 34.
  • the signals from rotary pulse generators 18, 19, 21, 22 of two rubber cylinders 4 can be compared with one another during one or more cylinder revolutions.
  • This comparison signal generated in this way of two rubber cylinders 4 is a measure of the relative rotation angle deviation (relative movement) of these rubber cylinders 4 to one another and thus corresponds to a deviation of the register of the web 1. If the signals of the rotary pulse generators 18, 19, 21, 22 with the reference signal of the oscillator in Set relationship, these comparison signals thus determined represent a measure of the absolute rotation angle deviation or for the absolute deviation of the circumferential speed of the rubber cylinder 4.
  • these deviations in uniformity of the cylinders 4, 6 can be combined into groups which, although they are similar to a certain pattern, do not have to be absolutely identical.
  • This comparison signal of the uniformity of the cylinders 4, 6 is fed to the computer 34 and compared there with stored, machine-specific, fixed reference signals for certain production conditions (e.g. speed, number of printing units, web material).
  • machine-typical reference signals were, for example, previously stored for various production conditions on a perfectly functioning rotary printing press in a wear-free and damage-free state or were determined on the basis of theoretical considerations and thus determined.
  • both the comparison signal of the uniformity of the cylinders 4, 6 and the pattern signals can be processed.
  • the signals are broken down into frequency spectra with the associated amplitudes. It has proven to be advantageous not to relate these frequency spectra to time, but to a cylinder revolution, since most of the movements in a rotary printing press occur periodically to one cylinder revolution.
  • the magnitudes of the amplitudes of the torsional vibration related to the cylinder revolution are then determined and compared. It is possible to break down each signal into its frequency spectra by means of an FFT or just to divide the deviation from the pattern signal into its frequency spectrum and then evaluate it.
  • the comparison of the measurement signals with the sample signals can be carried out continuously or at certain time intervals.
  • the cause can be deduced on the basis of their frequency.
  • Damage to components e.g. B. gears or cylinder bearings can be recognized, for example, using this frequency analysis.
  • wear on the teeth of a gearwheel can be seen in a frequency spectrum that corresponds to a multiple of the cylinder rotation corresponding to the number of teeth. It is also possible to detect progressive wear on cylinder bearings and thus to determine maintenance intervals. The deviation of the actual angular position of a cylinder or the deviation of the relative angular position of two cylinders from one another from the associated machine-typical reference signal is used as a measure of wear or damage to components.
  • This state of wear of certain components is continuously monitored and communicated to an operator, for example on a screen of a control center.
  • the operator must then, for example, upon reaching a first limit value previously set, for example by the machine manufacturer, acknowledge the message about the state of wear and release the machine manually.
  • a second limit value is reached, for example, the machine or at least the relevant unit is stopped.
  • the Regulation of the motors of the printing units 2 required Rotary encoder 18, 19, 21, 22 used to the Generate measurement signals.
  • other people's cylinders Units such as reel changers, feeders or Folders 18, 19, 21, 22 assigned to the folder used for evaluation and hereby conclusions on the state of wear certain, periodically moving components of these units are pulled. So can, for example, a profile of a cutting force cylinders involved in a cutting operation, e.g. B. of a cutting cylinder can be determined in the folder and from that to the state of wear of, for example Cutting bars or cutting blades are closed.
  • Angular pulse generators 18, 19, 21, 22 can also be more Rotary encoder on periodically moving, z. B. rotating components, e.g. B. on all cylinders 4, 6, be provided.
  • the measurement signals or the evaluation of the measurement signals can get saved.
  • This stored data can be saved at Need for remote diagnosis, for example via a modem or can be accessed via ISDN procedures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Control Of Presses (AREA)

Claims (6)

  1. Procédé de diagnostic d'une machine à imprimer rotative, dans lequel au moins deux composants (4; 6) se déplaçant de façon synchrone périodique sont munis chacun d'au moins un capteur de position (18; 19; 21; 22) et un signal de l'allure du déplacement relatif entre les deux composants (4; 6) est déterminé, au moyen d'une comparaison entre les signaux de sortie venant des deux capteurs de position (18; 19; 21; 22), chaque signal étant comparé à un signal de référence fixé, typique de la machine, du déplacement relatif des deux composants (4; 6) et un résultat de cette comparaison est utilisé comme indication quantitative du degré d'usure ou d'endommagement des composants de la machine à imprimer rotative.
  2. Procédé de diagnostic d'une machine à imprimer rotative, pour lequel chaque cylindre porte-blanchet (4) et chaque cylindre porte-plaque (6) d'une unité d'impression (2) est muni d'un capteur de position angulaire (18; 19; 21; 22) et d'un moteur d'entraínement, en ce que, au moyen de ce capteur de position angulaire (18; 19; 21; 22), un signal d'une allure d'une position d'angle de rotation précise, réelle, de chaque cylindre porte-blanchet (4) et de chaque cylindre porte-plaque (6) est déterminé, et le moteur d'entraínement étant réglé, chaque signal étant comparé à un signal de référence fixé, typique de la machine, d'une allure de la position angulaire de rotation de ce cylindre porte-blanchet (4) et cylindre porte-plaque (6) respectifs de la machine à imprimer rotative, et en ce que l'écart, entre les allures de la position angulaire de rotation effective et du signal de référence, est utilisé comme indication quantitative du degré d'usure et d'endommagement sur des composants de la machine à imprimer rotative.
  3. Procédé selon les revendications 1 ou 2, caractérisé en ce que le signal de la position angulaire rotative effective et le signal de référence et/ou le signal de l'écart, entre le signal de référence et la position angulaire rotative effective, sont décomposés, à l'aide de procédés mathématiques, en des spectres de fréquence ayant les amplitudes afférentes, en ce que des fréquences sélectionnées sont associées à des composants déterminés et en ce que les amplitudes de ces fréquences sélectionnées sont utilisées comme indication quantitative du degré d'usure ou d'endommagement sur ces composants.
  4. Procédé selon la revendication 3, caractérisé en ce que les spectres de fréquence sont calculés en se référant à des rotations des cylindres.
  5. Procédé selon la revendication 1, caractérisé en ce qu'au moins un cylindre (4; 6) de chaque unité d'impression (2) est muni d'un capteur de position (18; 19; 21; 22).
  6. Procédé selon la revendication 1, caractérisé en ce que tous les cylindres porte-blanchet (4) et les cylindres porte-plaque (6) d'une unité d'impression (2) sont chacun munis d'un capteur de position (18; 19; 21; 22).
EP97115305A 1996-09-12 1997-09-04 Procédé de diagnose pour une machine rotative Expired - Lifetime EP0829352B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00128645A EP1110730B1 (fr) 1996-09-12 1997-09-04 Procédé de diagnose pour une machine rotative

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19636987A DE19636987C2 (de) 1996-09-12 1996-09-12 Vorrichtung zur Diagnose bei einer Rotationsdruckmaschine
DE19636987 1996-09-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP00128645A Division EP1110730B1 (fr) 1996-09-12 1997-09-04 Procédé de diagnose pour une machine rotative

Publications (3)

Publication Number Publication Date
EP0829352A2 EP0829352A2 (fr) 1998-03-18
EP0829352A3 EP0829352A3 (fr) 1998-11-25
EP0829352B1 true EP0829352B1 (fr) 2001-11-07

Family

ID=7805308

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00128645A Expired - Lifetime EP1110730B1 (fr) 1996-09-12 1997-09-04 Procédé de diagnose pour une machine rotative
EP97115305A Expired - Lifetime EP0829352B1 (fr) 1996-09-12 1997-09-04 Procédé de diagnose pour une machine rotative

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP00128645A Expired - Lifetime EP1110730B1 (fr) 1996-09-12 1997-09-04 Procédé de diagnose pour une machine rotative

Country Status (4)

Country Link
US (1) US5865120A (fr)
EP (2) EP1110730B1 (fr)
JP (1) JP2978136B2 (fr)
DE (3) DE19636987C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005023482B3 (de) * 2005-05-21 2006-11-16 Koenig & Bauer Ag Verfahren zur Diagnose eines Gummituches
DE102007020120A1 (de) 2007-04-28 2008-10-30 Koenig & Bauer Aktiengesellschaft Verfahren zur Bestimmung von kinematischen Abwickelfehlern an Rotationsdruckmaschinen

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ATE216953T1 (de) * 1998-07-18 2002-05-15 Roland Man Druckmasch Wartungs- und inspektionssystem für eine druckmaschine
US6301373B1 (en) * 1998-10-01 2001-10-09 Mcgill University Paper quality determination and control using scale of formation data
US6244175B1 (en) * 2000-03-27 2001-06-12 Hueiloo Co., Ltd. Single space rotary printing press for newspapers
US6543350B2 (en) * 2000-05-19 2003-04-08 Intelligent Sensing, Inc. Measurement system to monitor printing contact pressure
DE10259494B4 (de) * 2002-01-21 2017-01-26 Heidelberger Druckmaschinen Ag Verfahren zum Steuern einer Druckmaschine
CA2440792A1 (fr) * 2002-09-27 2004-03-27 Mechworks Systems Inc. Methode et systeme de controle en ligne de l'etat de machines rotatives multietagees
EP1590756A2 (fr) * 2003-02-04 2005-11-02 Netstal-Maschinen AG Unite de maintenance/service et procede de gestion assistee par ordinateur de maintenance et/ou service
DE10335862B4 (de) * 2003-08-06 2007-01-04 Koenig & Bauer Ag Verfahren zum Kalibrieren eines inkrementalen Winkelgebers an einem rotierenden Bauteil
DE102005013361B4 (de) * 2005-03-23 2017-04-13 Manroland Web Systems Gmbh Verfahren zur Regelung eines Falzapparats einer Druckmaschine
DE102005042932A1 (de) 2005-09-09 2007-03-22 Man Roland Druckmaschinen Ag Druckmaschine, insbesondere Rollendruckmaschine
DE102006048353B4 (de) * 2005-11-07 2013-07-25 Heidelberger Druckmaschinen Ag Redundant ausgewerteter Winkelgeber
US7287473B2 (en) * 2005-12-20 2007-10-30 Heidelberger Druckmaschinen Ag Method for selecting printing material in a printing press and printing press
US9863917B2 (en) * 2006-03-20 2018-01-09 Clarkson University Method and system for real-time vibroacoustic condition monitoring and fault diagnostics in solid dosage compaction presses
DE102007054565B3 (de) * 2007-11-15 2008-07-03 Man Roland Druckmaschinen Ag Verfahren zum Betreiben einer Bogendruckmaschine
DE102008022634A1 (de) * 2008-05-08 2009-11-12 Manroland Ag Verfahren zum Betreiben einer Druckmaschine
US20110225799A1 (en) * 2010-03-18 2011-09-22 Casio Computer Co., Ltd. Production apparatus and production method of light emitting device
FR2989924A1 (fr) * 2012-04-27 2013-11-01 Goss Int Corp Tour d'impression offset pour presse rotative
SE543357C2 (en) * 2018-06-29 2020-12-15 Baldwin Jimek Ab Service tracking system for spray bars and the like
DE102021103214A1 (de) 2021-02-11 2022-08-11 Koenig & Bauer Ag Verfahren zur Maschinenüberwachung während des Betriebes einer Verarbeitungsmaschine
DE102022110168B3 (de) 2022-04-27 2023-05-17 Heidelberger Druckmaschinen Aktiengesellschaft Funktionsüberwachung von Transportbändern in der Druckmaschine

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DE4137979B4 (de) * 1991-11-19 2004-05-06 Heidelberger Druckmaschinen Ag Antrieb für eine Druckmaschine mit mindestens zwei mechanisch voneinander entkoppelten Druckwerken
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005023482B3 (de) * 2005-05-21 2006-11-16 Koenig & Bauer Ag Verfahren zur Diagnose eines Gummituches
DE102007020120A1 (de) 2007-04-28 2008-10-30 Koenig & Bauer Aktiengesellschaft Verfahren zur Bestimmung von kinematischen Abwickelfehlern an Rotationsdruckmaschinen
DE102007020120B4 (de) * 2007-04-28 2011-11-17 Koenig & Bauer Aktiengesellschaft Verfahren zur Bestimmung von kinematischen Abwickelfehlern an Rotationsdruckmaschinen

Also Published As

Publication number Publication date
DE59709591D1 (de) 2003-04-24
DE59705254D1 (de) 2001-12-13
EP0829352A3 (fr) 1998-11-25
EP0829352A2 (fr) 1998-03-18
JPH1086342A (ja) 1998-04-07
DE19636987C2 (de) 2000-03-23
EP1110730A2 (fr) 2001-06-27
EP1110730B1 (fr) 2003-03-19
US5865120A (en) 1999-02-02
EP1110730A3 (fr) 2001-08-22
JP2978136B2 (ja) 1999-11-15
DE19636987A1 (de) 1998-03-19

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