EP0710557A1 - Dispositif et procédé pour un transfert d'encre contrÔlé - Google Patents

Dispositif et procédé pour un transfert d'encre contrÔlé Download PDF

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Publication number
EP0710557A1
EP0710557A1 EP95115881A EP95115881A EP0710557A1 EP 0710557 A1 EP0710557 A1 EP 0710557A1 EP 95115881 A EP95115881 A EP 95115881A EP 95115881 A EP95115881 A EP 95115881A EP 0710557 A1 EP0710557 A1 EP 0710557A1
Authority
EP
European Patent Office
Prior art keywords
ink
inking roller
roller
drive
lifter
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.)
Granted
Application number
EP95115881A
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German (de)
English (en)
Other versions
EP0710557B1 (fr
Inventor
Rudi Junghans
Georg Rössler
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
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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0710557A1 publication Critical patent/EP0710557A1/fr
Application granted granted Critical
Publication of EP0710557B1 publication Critical patent/EP0710557B1/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
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/14—Applications of messenger or other moving transfer rollers

Definitions

  • the invention relates to a device and a method for precise metering transfer of printing ink between a doctor roller and a first inking roller, in particular in the offset printing process, with an inking roller that can be moved back and forth by means of a pivoting mechanism independently of the main drive of the printing press between a inking element and a first inking roller.
  • the disadvantage here is that the phase relationship between the machine movement and the movement of the ink lifter is not coupled and, as a result, no defined setting of the phase position of the lifter to the printing unit drive is possible.
  • the disadvantage of this device is that the system of the jack roller on the ductor or the first inking roller is predetermined by means of a cam control and therefore no individual settings are possible.
  • German patent specification DE 33 24 448 C1 describes an ink metering device for book and offset printing presses, the lifting roller of which consists of several disks arranged side by side, which can be switched individually.
  • the problem that arises here is that a large number of actuating elements and sensors are required to control and monitor the individual disks.
  • the resulting management of the control and monitoring signals requires a high computing capacity and takes up a large amount of computing time.
  • the mechanical problems that result from the division of the lifter roller into individual disks are heavy soiling of the gaps resulting from the division, a high level of adjustment work to ensure that each disk is evenly positioned on the ductor or ink roller, and exact balancing of each single disc to avoid vibrations.
  • the object of the invention is to implement an ink lifter device, which is driven for individual adjustment and independently of the drive of the printing press, and a method necessary for this.
  • the advantage of the invention lies in the simplicity of the construction and in the variety of possible variations, which is given by the independence of the color lifter.
  • the design simplification is that no complicated gears, rods, etc. are necessary to tap the movement from the gear train.
  • the synchronization to the main drive takes place via an already known incremental encoder which is read in and evaluated by a computer system.
  • the phase position of the ink lifter i. H. the point in time at which the ink lifter touches the first inking roller can be set in such a way that the vibrational excitations that may arise have the least influence on the print quality. This could e.g. B. be when the inking rollers face the channel of the plate cylinder. Another option would be to select a location that is not critical in the subject.
  • the direct discontinuous drive of the ink lifter pivoting device has the advantage that the application speed can be selected so that almost no vibrations occur when the ink lifter roller is in contact with the ductor or the first inking roller.
  • the adjustable dwell time on the ductor or on the first inking roller gives the printer the advantage of being able to choose the ink lifter speed, ie the number of ink lifter movements per machine revolution, depending on the subject to be printed. With small lifting speed can correspondingly more ink are transported from the ductor to the first inking roller, which is why it is possible to additionally influence the amount of ink by the ink layer thicknesses, and thus also to set it differently zonally. Low speed is only chosen if a work with a relatively low coloring is to be printed. Usually a 1/2 or 1/3 speed setting is selected. It is also possible to set a different ink lifter speed in each printing unit.
  • ink lifter movement which is operated independently of the machine cycle, is that the ink lifter speed can be adjusted unevenly, i. H. after a certain number of ink lifter movements, one or more ink lifter movements can be suspended.
  • a further advantage of this control is the possibility to stop the drive when the machine is "switched off” so that the inking roller just touches the inking roller.
  • Figure 1 shows an inking roller 1, which is mounted on an angled lever 2.
  • the angled lever 2 is mounted in a fulcrum 3 and is moved up and down by means of a cam mechanism 4 over a roller such that the inking roller 1 swings back and forth between an inking roller 6 and an inking roller 7.
  • the inking roller 1 takes up the ink removed from the inking roller 6 from an ink fountain 8 and feeds it to the inking roller 7.
  • the inking roller 6 and the inking roller 7 are driven by a wheel train or motor, not shown.
  • the inking roller 1 has no drive but is rotated by the friction on the inking roller 6 on the one hand and on the inking roller 7 on the other.
  • a spring 9 ensures that the roller 5 constantly rolls on the cam mechanism 4.
  • the setpoint generator 11 receives the actual values of the printing unit speed DW through an incremental encoder 12 and the angular position of the printing unit ⁇ DW .
  • the setpoint generator 11 generates an angle setpoint ⁇ S and a speed setpoint ⁇ S from these input values. These setpoints ( ⁇ S , ⁇ S ) are fed to an angle controller 14 and a speed controller 15 via an addition stage 13.
  • the speed controller 15 generates a current setpoint i S , which is fed to a power unit 16.
  • the power unit 16 controls a motor 17, on the shaft 18 of which the cam mechanism 4 is mechanically attached.
  • On the shaft 18 there is also an incremental encoder 19 which determines the actual value of the speed ⁇ H and the angular position ⁇ H. These values are fed to the addition stage 13 with a negative sign.
  • FIG. 3 shows a setpoint generator 11 which, as in FIG. 2, generates a signal from the input signals Sb, kt, ⁇ DW-H , ⁇ DW , ⁇ DW , which is fed to a step controller 21.
  • the step controller 21 controls a power unit 16, which represents the power supply for the stepper motor 22.
  • the stepper motor 22 moves the ink lifter 1 back and forth between the inking roller 6 (not shown) and the inking roller 7 via a shaft 18.
  • This embodiment has the advantage that no feedback for the position of the stepper motor 22 is required.
  • FIG. 4 shows a motor 31, the design of which makes no statement, which is connected to a cam segment 32.
  • the cam segment 32 has different radii r1, r2.
  • a roller 5 runs on the cam segment 32 and is operatively connected to an angle lever 2.
  • This angle lever 2 is mounted in a fulcrum 3 and, when the motor 31 rotates, swivels the ink lifter 1 back and forth between the inking roller 6 and inking roller 7, not shown.
  • FIG. 5 shows a representation similar to the pivoting of the inking roller 1 as in FIG. 4, but with a linear motor 41 acting directly on an angle lever 2. The deflection of the linear motor 41 causes the inking roller 1 to be pivoted back and forth via the angle lever 2.
  • FIG. 6 shows the idealized peripheral speed profile u in the inking roller.
  • the inking roller 1 lies against the inking roller 7 and is driven over the period t0 to t1 by the inking roller 7, ie the ink is transported from the inking roller 1 to the inking roller 7.
  • the inking roller 1 is separated from the inking roller 7 and pivoted to the inking roller 6, the system being applied to the inking roller 6 at time t2.
  • the speed of the inking roller 1 is undefined.
  • the peripheral speed of the inking roller 1 is equal to the inking roller 6.
  • the ink is transported from the inking roller 6 to the inking roller 1.
  • the inking roller 1 is separated from the inking roller 6 and pivoted to the inking roller 7.
  • the speed of the inking roller 1 is also undefined.
  • the period t0 to t1, t2 to t3 as well as the phase position of the times t0 and t2 for the printing unit movement can be individually adjusted by the printer to the respective print job or the printing unit conditions.
  • the period t2 to t3 is usefully max. to be chosen so large that the inking roller 1 bears against the inking roller 6 one revolution.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP95115881A 1994-10-10 1995-10-09 Dispositif et procédé pour un transfert d'encre contrôlé Expired - Lifetime EP0710557B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436102 1994-10-10
DE4436102A DE4436102C2 (de) 1994-10-10 1994-10-10 Vorrichtung zur kontrollierten Übertragung von Druckfarbe

Publications (2)

Publication Number Publication Date
EP0710557A1 true EP0710557A1 (fr) 1996-05-08
EP0710557B1 EP0710557B1 (fr) 2000-05-10

Family

ID=6530350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95115881A Expired - Lifetime EP0710557B1 (fr) 1994-10-10 1995-10-09 Dispositif et procédé pour un transfert d'encre contrôlé

Country Status (3)

Country Link
EP (1) EP0710557B1 (fr)
JP (1) JP3834082B2 (fr)
DE (2) DE4436102C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012218423A1 (de) * 2012-10-10 2014-04-10 Koenig & Bauer Aktiengesellschaft Farbwerk eines Druckwerks, Druckwerk sowie Verfahren zum Betreiben eines Farbwerks

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753944C2 (de) * 1997-12-05 2002-06-06 Roland Man Druckmasch Verfahren zum Steuern eines Heberfarbwerkes einer Druckmaschine
DE19940532B4 (de) * 1998-10-16 2007-02-08 Heidelberger Druckmaschinen Ag Druckmaschine mit einem Heberfarbwerk
DE10056248A1 (de) * 1999-12-06 2001-06-07 Heidelberger Druckmasch Ag Verfahren zum Steuern der Farbmenge in einem Farbwerk
DE10033638A1 (de) 2000-07-11 2002-01-24 Heidelberger Druckmasch Ag Überwachungsvorrichtung für die Bogenzufuhr zu einer Bogen verarbeitenden Maschine und Verfahren zur Kontrolle des Bogenstromaufbaus des Bogenstroms
DE10159387A1 (de) * 2001-12-04 2003-06-12 Windmoeller & Hoelscher Verpackungsdruckmaschine mit eingebauter automatischer Vergleichsfunktion zwischen Druck- und Sollbild
DE10259495B4 (de) * 2002-01-26 2010-09-02 Goss International Montataire S.A. Farbwerk einer Druckmaschine
NL1020103C2 (nl) * 2002-03-04 2003-09-05 Skf Ab Besturingsinrichting voor ductorroller in drukmachine.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1531691A (fr) * 1967-05-25 1968-07-05 Vente De Materiels Pour La Fab Perfectionnements aux dispositifs de distribution d'encre de machines à imprimer
DE2341510A1 (de) 1972-08-16 1974-04-25 Harris Intertype Corp Druckerpresse, insbesondere steuerungsanlage zum antrieb mehrerer druckeinheiten einer druckerpresse
DE3324448C1 (de) 1983-07-07 1985-02-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbdosiereinrichtung für Buch- und Offsetdruckmaschinen
GB2193926A (en) * 1986-07-24 1988-02-24 Ratby Eng Co Ltd Inking system in a printing machine
DE3935215A1 (de) 1988-10-31 1990-05-03 Polygraph Leipzig Heberfarbwerk fuer schnellaufende rollen-rotationsdruckmaschinen
WO1990013427A1 (fr) * 1989-05-08 1990-11-15 Adolph Coors Company Appareil et procede servant a la decoration de boites pour boissons
JPH02299849A (ja) * 1989-05-15 1990-12-12 Toshiba Mach Co Ltd 最適インキ量の供給方法
EP0623468A1 (fr) * 1993-05-03 1994-11-09 MAN Roland Druckmaschinen AG Dispositif d'encrage à rouleau preneur et procédé pour régler l'alimentation en encre dans des machines d'impression
JPH1156067A (ja) * 1997-08-25 1999-03-02 Kioritz Corp 可動刃用制動装置を備えた携帯式刈取機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274932A (en) * 1961-12-05 1966-09-27 Roger M Caza Ink fountain roller interrupting means
US3688696A (en) * 1970-05-08 1972-09-05 Harris Intertype Corp Motorized ductor roll
US4524692A (en) * 1984-04-18 1985-06-25 Didde Graphic Systems Corporation Electronic ink flow control for printing

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1531691A (fr) * 1967-05-25 1968-07-05 Vente De Materiels Pour La Fab Perfectionnements aux dispositifs de distribution d'encre de machines à imprimer
DE2341510A1 (de) 1972-08-16 1974-04-25 Harris Intertype Corp Druckerpresse, insbesondere steuerungsanlage zum antrieb mehrerer druckeinheiten einer druckerpresse
DE3324448C1 (de) 1983-07-07 1985-02-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbdosiereinrichtung für Buch- und Offsetdruckmaschinen
GB2193926A (en) * 1986-07-24 1988-02-24 Ratby Eng Co Ltd Inking system in a printing machine
DE3935215A1 (de) 1988-10-31 1990-05-03 Polygraph Leipzig Heberfarbwerk fuer schnellaufende rollen-rotationsdruckmaschinen
WO1990013427A1 (fr) * 1989-05-08 1990-11-15 Adolph Coors Company Appareil et procede servant a la decoration de boites pour boissons
JPH02299849A (ja) * 1989-05-15 1990-12-12 Toshiba Mach Co Ltd 最適インキ量の供給方法
EP0623468A1 (fr) * 1993-05-03 1994-11-09 MAN Roland Druckmaschinen AG Dispositif d'encrage à rouleau preneur et procédé pour régler l'alimentation en encre dans des machines d'impression
JPH1156067A (ja) * 1997-08-25 1999-03-02 Kioritz Corp 可動刃用制動装置を備えた携帯式刈取機

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 418 (M - 871) 18 September 1989 (1989-09-18) *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 77 (M - 1085) 22 February 1991 (1991-02-22) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012218423A1 (de) * 2012-10-10 2014-04-10 Koenig & Bauer Aktiengesellschaft Farbwerk eines Druckwerks, Druckwerk sowie Verfahren zum Betreiben eines Farbwerks
DE102012218423B4 (de) 2012-10-10 2022-02-24 Koenig & Bauer Ag Farbwerk eines Druckwerks, Druckwerk sowie Verfahren zum Betreiben eines Farbwerks

Also Published As

Publication number Publication date
DE4436102C2 (de) 2000-01-05
DE4436102A1 (de) 1996-04-11
JP3834082B2 (ja) 2006-10-18
EP0710557B1 (fr) 2000-05-10
JPH08224859A (ja) 1996-09-03
DE59508309D1 (de) 2000-06-15

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