EP0893256A2 - Procédé et dispositif de commande de nombre de tours des cylindres dans une presse à imprimer - Google Patents

Procédé et dispositif de commande de nombre de tours des cylindres dans une presse à imprimer Download PDF

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Publication number
EP0893256A2
EP0893256A2 EP98105364A EP98105364A EP0893256A2 EP 0893256 A2 EP0893256 A2 EP 0893256A2 EP 98105364 A EP98105364 A EP 98105364A EP 98105364 A EP98105364 A EP 98105364A EP 0893256 A2 EP0893256 A2 EP 0893256A2
Authority
EP
European Patent Office
Prior art keywords
impression cylinder
cylinders
impression
printing
rotation
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.)
Ceased
Application number
EP98105364A
Other languages
German (de)
English (en)
Other versions
EP0893256A3 (fr
Inventor
Edgar Gandelheidt
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP0893256A2 publication Critical patent/EP0893256A2/fr
Publication of EP0893256A3 publication Critical patent/EP0893256A3/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F3/00—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
    • B41F3/46—Details
    • B41F3/58—Driving, synchronising, or control gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F3/00—Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
    • B41F3/82—Auxiliary devices
    • B41F3/84—Arrangements of counting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/10—Relief printing
    • B41P2200/12—Flexographic printing
    • 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
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
    • 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
    • B41P2213/90—Register control

Definitions

  • the invention relates to a method for controlling the speed of the own drives provided printing cylinder of a printing press, which is connected to a driven common impression cylinders are adjustable, and a printing press, preferably Flexographic printing machine, for performing this method.
  • the quality of a multicolor print depends largely on the fact that all colors printed in register, that is, with precise alignment with each other.
  • DE-OS 29 41 521, 34 37 216 and 43 08 492 are flexographic printing machines with a driven impression cylinder and several printing units known, the pressure cylinder can be adjusted to the impression cylinder, wherein the impression cylinder is provided with a central wheel, which with the drive gears all printing cylinders combs.
  • a register-accurate pressure is ensured when the tooth pitches of the drive gears are adapted to the diameters of the impression cylinders in such a way that they are driven at the same peripheral speed as the counter-pressure roller.
  • Flexo printing machines of a newer type with a common impression cylinder for all impression cylinders have their own drives for both the impression cylinder as well as for the individual printing rollers. Allow such printing machines it, for example, the circumferential speed of the pressure cylinder on their controllable Adapt drives exactly to the peripheral speed of the impression cylinder, without having to pay attention that the tooth divisions of the Drive gears are adapted to the diameters of the pressure cylinders.
  • a printing press with an impression cylinder with its own drive can be adjusted on the pressure rollers provided with their own drives known for example from DE-OS 34 32 572.
  • An irregular rotation of the Back-pressure cylinders can also result from tolerances during manufacture and assembly the drive gears that transmit the rotary motion to the impression cylinder, as well as bearing games that lead to eccentricities and thus a non-uniform Guide the drive of the central counter pressure cylinder.
  • the drive gears that transmit the rotary motion to the impression cylinder can also result from tolerances during manufacture and assembly the drive gears that transmit the rotary motion to the impression cylinder, as well as bearing games that lead to eccentricities and thus a non-uniform Guide the drive of the central counter pressure cylinder.
  • the eccentricities of the gears and manufacturing tolerances and / or other influences can lead to the fact that an ideally uniform rotary motion of the drive motor to a uniform Drive of the impression cylinder leads to a non-uniform transport the web to be printed results in, so that the web through the printing cylinder with registration errors because the printing cylinders are equipped with their own drives cannot compensate for the irregular rotation of the central wheel, because the drives of the impression cylinders match the drive speed of the impression cylinder are adjusted and the non-uniform rotational movement of the impression cylinder for example from eccentricities and / or bearing games, but which results from however exact adjustment of the speeds of the printing rollers to the speed of the Back pressure roller cannot be compensated.
  • the object of the invention is therefore to provide a method of the type mentioned propose after which the peripheral speed of the printing rollers in the Way to adjust for a non-uniform rotation of the platen roller that Registration errors can be avoided.
  • this object is achieved by that the current angle of rotation of the impression cylinder starting from a Zero line is measured and that taking into account the specified angle of rotation ratio between the impression cylinder and the printing rollers Rotation of the pressure cylinders by their drive motors according to the measurement is controlled.
  • the invention is based on the knowledge that the drive of the impression cylinder can not be controlled in such a way that this with uniform peripheral speed rotates because the moment of inertia of the impression cylinder and the associated drive is much too large to control the drive in such a way that Irregularities in the rotation can be compensated.
  • they have Printing rollers and their drives have lower masses, so that their moments of inertia are controllable by their controllable motors in such a way that the peripheral speed the impression cylinder irregularities in the impression cylinder can be adapted in such a way that an accurate registration is always guaranteed is.
  • the instantaneous angle of rotation of the impression cylinder is measured on the basis of an imaginary zero line which runs radially through the axis of rotation of the impression cylinder.
  • the factor k means the constant angle of rotation ratio between the impression cylinder and the format cylinders, which corresponds to the ratio of the radii or the diameter of the cylinders.
  • the predetermined ratio ensures that the instantaneous peripheral speeds of the impression cylinder and the impression cylinder are also controlled in the given fixed relationship to one another.
  • a printing press preferably a flexographic printing press, for carrying out the invention
  • a driven impression cylinder and several printing units, their adjustable pressure cylinder on the impression cylinder are provided with their own drives, the speeds of which are controllable according to the invention in that the impression cylinder over its circumference is provided at equal intervals with markings by a sensor are scanned, and that the sensor signals of a control device, for example a microcomputer, the speed of the drives of the Printing cylinders 7, 8 according to the instantaneous determined from the sensor signals
  • Angle of rotation of the impression cylinder controls in such a way that this under Consideration of the angle of rotation ratio between the impression cylinder and 0 Printing cylinders can be rotated by corresponding angles at the same times.
  • the sensor can consist of a reflection photo button.
  • the markings do not need to be placed on the circumference of the counter-pressure roller to be. You can also rotate on an impression cylinder Disc or on a ring rotating with this.
  • the markings can also be made on a gearbox with the impression cylinder connected carrier, for example a disc, may be arranged, for correct assignment is provided a usual calibration table, which is in a Electronic memory can be entered and read out by the microcomputer becomes.
  • the schematically illustrated impression cylinder 1 has its own drive Mistake. Because there are manufacturing tolerances of the drive gears, slight eccentricities the gears and in particular the large, the impression cylinder 1 driving The counter pressure cylinder will not completely avoid the gear wheel and bearing play 1 with a slight uneven handling speed driven, which is also controlled by a controllable drive of the impression cylinder because of the large moment of inertia of the impression cylinder and the associated Drive does not compensate.
  • the impression cylinder is on its circumference with markings at equal intervals 2 provided by a sensor 3, for example a reflection photo button, be scanned.
  • the signals from the sensor 3 are fed to a computer 4, from the sensor signals very precisely the instantaneous angle of rotation of the impression cylinder 1 calculated.
  • the computer 4 controls taking into account the Angle of rotation ratio between the impression cylinder and the impression cylinders the drive motors 5, 6 of the impression cylinders employed on the impression cylinder 1 7, 8, so that this always takes into account the rotational angle ratio cover the corresponding angle of rotation. This corresponds to the current one
  • the peripheral speed of the impression cylinder is always the current peripheral speed the pressure cylinder at the common line of contact.
  • the printing cylinders 7, 8 are anilox rollers 9, 10 of the printing units in the usual way assigned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP98105364A 1997-04-22 1998-03-25 Procédé et dispositif de commande de nombre de tours des cylindres dans une presse à imprimer Ceased EP0893256A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19716943A DE19716943A1 (de) 1997-04-22 1997-04-22 Verfahren zur Steuerung der Drehzahl der Druckzylinder einer Druckmaschine
DE19716943 1997-04-22

Publications (2)

Publication Number Publication Date
EP0893256A2 true EP0893256A2 (fr) 1999-01-27
EP0893256A3 EP0893256A3 (fr) 1999-05-26

Family

ID=7827368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98105364A Ceased EP0893256A3 (fr) 1997-04-22 1998-03-25 Procédé et dispositif de commande de nombre de tours des cylindres dans une presse à imprimer

Country Status (8)

Country Link
EP (1) EP0893256A3 (fr)
JP (1) JPH10296959A (fr)
KR (1) KR19980081528A (fr)
CN (1) CN1197005A (fr)
BR (1) BR9801427A (fr)
CZ (1) CZ77798A3 (fr)
DE (1) DE19716943A1 (fr)
TW (1) TW516509U (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1314383B1 (it) † 2000-02-18 2002-12-13 Uteco S P A Roto Flexo & Conve Macchina da stampa rotativa flessografica a piu' colori
JP3727511B2 (ja) * 2000-05-17 2005-12-14 リョービ株式会社 印刷装置
DE10259494B4 (de) 2002-01-21 2017-01-26 Heidelberger Druckmaschinen Ag Verfahren zum Steuern einer Druckmaschine
ES1054281Y (es) * 2003-03-17 2003-10-16 Comexi Sa Rodillo de maquinaria para la impresion flexografica con dispositivo de control de posicion angular.
DE10327218B4 (de) 2003-06-17 2015-08-06 Schaeffler Technologies AG & Co. KG Direktantrieb für einen Zylinder einer Druckmaschine
DE102007010216A1 (de) * 2007-02-28 2008-09-04 Man Roland Druckmaschinen Ag Anordnung einer Drehwinkelmesseinrichtung für einen antreibbaren Zylinder in einer Verarbeitungsmaschine und Verfahren zur Drehwinkelmessung
US7911636B2 (en) * 2007-07-25 2011-03-22 Eastman Kodak Company Multi-head press data delivery rate control
DE102011006113A1 (de) * 2011-03-25 2012-09-27 Kba-Metalprint Gmbh Vorrichtung zum Auftragen zumindest eines Mediums auf zumindest ein Substrat und ein Verfahren zum reproduzierbaren Festlegen einer Drehwinkellage zumindest eines ersten Zylinders einer Vorrichtung
KR101387951B1 (ko) 2013-05-10 2014-04-22 한국기계연구원 싱글 필드 방식의 엔코더를 이용한 웹 이송 속도 측정 방법
JP7083811B2 (ja) * 2017-03-24 2022-06-13 住友重機械工業株式会社 制御装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2426532A1 (de) * 1974-05-31 1975-12-04 Licentia Gmbh Anordnung zur digitalen, winkelgenauen drehzahlregelung von elektrischen antrieben
DE2930438C2 (de) * 1979-07-26 1982-06-24 Siemens AG, 1000 Berlin und 8000 München Verfahren zum Voreinstellen des Registers bei Rollen-Rotations-Tiefdruckmaschinen
DE2941521C2 (de) * 1979-10-12 1982-11-25 Windmöller & Hölscher, 4540 Lengerich Verfahren zum Austauschen der Formzylinder einer Flexodruckmaschine
GB2146291B (en) * 1983-09-14 1987-10-14 Grace W R & Co Rotary printing press
JPS60250955A (ja) * 1984-05-26 1985-12-11 Hamada Insatsuki Seizosho:Kk プリンタ・スロツタ
DE3437216A1 (de) * 1984-10-10 1986-04-10 Windmöller & Hölscher, 4540 Lengerich Flexodruckmaschine mit mehreren farbwerken und formzylindern
JP2720584B2 (ja) * 1990-07-20 1998-03-04 株式会社安川電機 サーボシステムの同調位相制御装置
DE4308492A1 (de) * 1993-03-17 1994-09-22 Windmoeller & Hoelscher Druckmaschine
DE4344912C5 (de) * 1993-12-29 2004-02-12 Maschinenfabrik Wifag Antrieb eines farbübertragenden Druckzylinders einer Rollenrotationsdruckmaschine
DE19527199C2 (de) * 1995-07-26 2002-10-31 Baumueller Nuernberg Gmbh Flexodruckmaschine und deren Verwendung
US5615609A (en) * 1995-08-21 1997-04-01 The Lawrence Paper Company System and method for controlling AC motor driven multi-unit printing press

Also Published As

Publication number Publication date
JPH10296959A (ja) 1998-11-10
EP0893256A3 (fr) 1999-05-26
TW516509U (en) 2003-01-01
CZ77798A3 (cs) 1998-11-11
KR19980081528A (ko) 1998-11-25
DE19716943A1 (de) 1998-11-05
CN1197005A (zh) 1998-10-28
BR9801427A (pt) 1999-06-01

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