EP0131103B1 - Dispositif d'encrage pour machines d'impression typographique et machines d'impression offset - Google Patents

Dispositif d'encrage pour machines d'impression typographique et machines d'impression offset Download PDF

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Publication number
EP0131103B1
EP0131103B1 EP84105091A EP84105091A EP0131103B1 EP 0131103 B1 EP0131103 B1 EP 0131103B1 EP 84105091 A EP84105091 A EP 84105091A EP 84105091 A EP84105091 A EP 84105091A EP 0131103 B1 EP0131103 B1 EP 0131103B1
Authority
EP
European Patent Office
Prior art keywords
ink
roller
transfer
discs
metering device
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
Application number
EP84105091A
Other languages
German (de)
English (en)
Other versions
EP0131103A2 (fr
EP0131103A3 (en
Inventor
Siegfried Schuhmann
Günther Schniggenfittig
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT84105091T priority Critical patent/ATE41361T1/de
Publication of EP0131103A2 publication Critical patent/EP0131103A2/fr
Publication of EP0131103A3 publication Critical patent/EP0131103A3/de
Application granted granted Critical
Publication of EP0131103B1 publication Critical patent/EP0131103B1/fr
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2231/00—Inking devices; Recovering printing ink
    • B41P2231/10—Axially segmented ducter rollers

Definitions

  • the invention relates to a color metering device for book and offset printing machines according to the preamble of claim 1 (DE-A-2 924 635).
  • CH-A-169 362 shows an inking unit for rotary printing presses with a plurality of individually adjustable and detachable lifter rollers arranged on a common shaft, the lengths of which correspond to the width of one printing plate.
  • a control disk with several cams of different sizes lying next to one another is arranged on a common shaft so as to be longitudinally displaceable and adjustable.
  • DD-A-104 259 is intended to solve the problem of being able to program predetermined and / or calculated metered amounts of ink in a programmed manner, and to be able to eliminate inking disturbances during production by means of control technology with machine-technical requirements.
  • an ink layer thickness required for each ink-paper combination used is provided by finely adjusting a roller gap between a ductor and a counter roller and / or by a speed difference between these two rollers.
  • the zone discs are only guided on one side.
  • the task of a ink metering device in book and offset printing machines is to solve the problem of reducing the susceptibility to interference from paper components and fountain solution and to enable a color requirement of the printing form that corresponds exactly to the ink supply.
  • an ink metering device which consists of an ink fountain with ink knife and an ink fountain roller with ink lifter for electronic ink zone remote controls for book and offset printing presses and in which several ink lifter wheels are provided which oscillate individually and independently of one another and their width in each case a specific ink zone corresponds.
  • All of the above-mentioned devices divide the lifting roller into a plurality of transfer rollers which are arranged next to one another in the manner of disks and which each have to be held laterally for driving. This means a large gap between the individual ink transfer rollers when the ink transfer rollers are held on both sides. Nevertheless, the size of the lever arm means that the holder is not sufficient to be able to absorb the forces when the ink is transferred from the box roller to a friction roller rotating in particular at a higher peripheral speed. A lateral deflection while touching the ink lifter discs on the grater cannot be avoided with the narrow mounting plates. Since this deflection occurs during each contact with the friction roller, there is a risk of the bracket plate breaking.
  • the invention has for its object to provide an ink metering device that enables ink transfer from the ink fountain roller without empty gaps - between two adjacent lifting discs on the transfer roller, the ink lifting discs are easily replaceable.
  • the peripheral speed of the rollers involved in the ink metering are the same size, i. H. the paint can be dosed on the rollers without slipping.
  • the ink is applied from the ink fountain to the ink fountain roller with a gap width that is fixed on the ink slides.
  • the ink is fed back to the ink fountain after one rotation of the ink fountain roller, if it has not been removed from the ink fountain roller by the ink lift disks. In this way, dosing in the zero quantity range can be carried out particularly simply and precisely. If ink is transferred, the ink lift discs are in contact with the transfer roller. If the ink lifter disc is brought into brief contact with the ink fountain roller, the ink is dosed slightly.
  • the system shows the ink lifter disc on the ink fountain roller decisively about the amount of ink to be transferred during metering. If the ink lifter disc is constantly in contact with the ink fountain roller, then this position corresponds to the maximum ink transfer.
  • the contact time of the ink lifter disc on the ink fountain roller determines the length of the ink ribbon that is transferred to the transfer roller.
  • the paint lifter disc remains in constant contact with the transfer roller, which ensures controlled ink flow.
  • the control of the ink lifter disks can be selected so that the installation times of the ink lifter disks take place in accordance with the ink requirement in the respective area of the printed image. Different lever arrangements are provided according to the selected ink metering device for the defined control of the contact time of the ink lifter disks.
  • the ink is transferred from the slow-running ink transfer roller to the peripheral speed corresponding to the machine speed or the peripheral speed of the plate cylinder by means of suitable lifting devices. This can be done with the usual reciprocating ink lifters, or rotating ink lifters with two sides.
  • the ink lifter discs are close together and have no empty gaps, so that the ink transfer to the transfer roller is optimal and there is no need to rub directly after the ink transfer.
  • the rubbing in the area of the plate cylinder is sufficient for this.
  • Another embodiment provides for a double row of color lifter disks which are mutually offset with respect to one another.
  • the ink fountain roller and the transfer roller are connected to each other with a drive belt.
  • the ink layer thickness is doctored off on a doctor blade to a fixed, fixed layer thickness and transferred by means of the ink lifter disks according to the application time.
  • different lever arrangements are provided for actuating the paint lifting discs.
  • an ink metering device in which an ink fountain 1 and an ink knife 2 is provided on an ink fountain roller 3, the ink knife 2 with a fixed gap width ensures that on the ink fountain roller 3 an equal sized ink film from the ink fountain 1 is supplied.
  • the ink application film on the ink fountain roller 3 can be transferred further to a transfer roller 5 with an ink lifter disc 4.
  • the paint lifter disc 4 is controlled via a lever arrangement 6, at the end of which a support roller 9 is arranged.
  • the control is preferably carried out so that the ink lifter 4 is in constant contact with the transfer roller 5 and only for ink removal. can be brought into contact with the ink fountain roller 3 by lowering the support roller 9.
  • the peripheral speeds of the rollers 3 and 5 are considerably smaller than the peripheral speed of the rollers of the rest of the inking unit.
  • the peripheral speeds of the rollers 3, 5 can be changed.
  • An ink lifter 15 is arranged between the transfer roller 5 and an inking roller 16.
  • the ink lifter 15 can also be designed as a rotating lifter on which two rollers are provided for transferring the ink, in order to accelerate the ink from the slow peripheral speed to the machine peripheral speed of the rollers corresponding to the plate cylinder.
  • the ink transfer is optimal, i. H. there are no empty gaps on the transfer roller 5. Since the ink transfer can be controlled so well in accordance with the ink requirement, the inking roller 16 can also be designed without trituration, i. H. the rubbing directly on the plate cylinder is sufficient with the present ink metering device.
  • the lever arrangement 6 can be designed differently depending on the space conditions of the printing press in the inking unit area.
  • FIG. 2 shows another ink metering device in which the connecting line of the ink fountain roller 3 to the transfer roller 5 has an angle of approximately 45 ° to the horizontal.
  • the rollers 3, 5 are connected to one another by a drive belt 3.5. Between the rollers 3, 5, two rows of ink lifters 4.1, 4.2 are arranged.
  • the color lifter disks 4.1 are set opposite to the opposite color lifter disks 4.2 and are eccentrically mounted.
  • the ink lift discs 4 are rotated by the roller 3 or 5 in rotation.
  • the control of the ink lifter disks 4.1, 4.2 takes place via a lever arrangement 8, 8.1 and articulated rods 13, 14.
  • the articulated rods 14 can be guided well through the spaces between the ink lifter disks 4.1.
  • the ink film is continuously fed to the ink fountain roller to a certain fixed preselected thickness by setting a doctor blade 2.1 and, depending on the contact time of the ink-lifting disks 4.1, 4.2, is transferred to the transfer roller 5. If no ink is removed by the ink-lifting discs 4.1, 4.2, the ink is returned to the ink fountain 1 after one rotation of the ink fountain roller 3.
  • rotating double-sided jacks can also be used can be used in order to bring the color to normal machine speeds.
  • an optimal feed control by the ink lifting discs 4.1, 4.2 from zero to maximum is possible without the transfer roller having 5 empty gaps.
  • FIG. 3 shows a color metering device similar to that shown in FIG. 1.
  • the ink-lifting discs 4 have flat spacer bolts 12 on one side and are mounted on two support rollers 10 which are arranged at both ends of a lever 11.
  • a lever arrangement 7 is fastened to the lever 11 in such a way that the ink regulator disks 4 can be applied to the ink fountain roller 3 for the finest regulation of the ink in the most varied of installation times.
  • the special device with the lever 11 also allows a simple change of the permanent system of the ink lifting discs 4 from the transfer roller 5 to the ink fountain roller 3, for this purpose only the basic setting angle of the lever 11 with the lever arrangement 7 is changed by an adjusting screw.
  • the color lifting discs 4 can be removed quickly and without great effort for repair purposes and cleaning work.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (8)

1. Appareil de dosage d'encre pour machines d'impression de livres et offset, se composant d'un encrier (1) avec une lame d'encre (2) (raclette) et d'un rouleau d'encrier (3) avec un preneur d'encre (4), le preneur d'encre (4) se composant de plusieurs disques de preneur d'encre, qui oscillent individuellement et indépendamment les uns des autres entre le rouleau d'encrier (3) et un rouleau de transfert (5) et dont la largeur correspond à chaque fois à une zone d'encrage déterminée, caractérisé en ce que le rouleau d'encrier (3) et le rouleau de transfert (5) sont entraînés à une vitesse périphérique identique, réduite par rapport aux autres rouleaux du mécanisme d'encrage (15, 16), en ce que les disques de preneur d'encre (4, 4.1), qui sont en contact permanent soit avec le rouleau de transfert (5), soit avec le rouleau d'encrier (3), sont entraînés par contact de frottement et en ce que les disques de preneur d'encre (4, 4.1) sont susceptibles d'être amenés en appui, de façon inverse correspondante, soit avec le rouleau d'encrier (3), soit avec le rouleau de transfert (5), au moyen de dispositifs à leviers (6, 7, 8), et d'en être à nouveau écartés.
2. Dispositif de dosage d'encre selon la revendication 1, caractérisé en ce que les disques de preneur d'encre (4) sont disposés fous entre le rouleau d'encrier (3) et le rouleau de transfert (5), et en ce que les disques de preneur d'encre (4) . sont modifiables à partir de leur position de repos, au moyen du dispositif à leviers (6), à l'extrémité duquel est fixé un galet d'appui (9).
3. Dispositif de dosage d'encre selon les revendications 1 et 2, caractérisé en ce que les disques de preneur d'encre (4) sont susceptibles d'être basculés, pour engagement ou dégagement, au moyen de deux galets d'appui (10) qui sont disposés sur un levier pivotant (11).
4. Dispositif de dosage d'encre selon les revendications 1, 2 et 3, caractérisé en ce que le rouleau d'encrier (3) et le rouleau de transfert (5) sont susceptibles d'être entraînés à différentes vitesses identiques entre elles, mais réglables globalement.
5. Dispositif de dosage d'encre selon la revendication 1, caractérisé en ce que le rouleau d'encrier (3) et le rouleau de transfert (5) sont reliés par une courroie d'entraînement (3.5).
6. Dispositif de dosage d'encre selon les revendications 1 et 5, caractérisé en ce que deux rangées de disques de preneur d'encre (4.1, 4.2) sont disposées entre le rouleau d'encrier (3) et le rouleau de transfert (5) et en ce que les disques de preneur d'encre (4.1,4.2) sont montés excentriques.
7. Dispositif de dosage d'encre selon les revendications 1, 5 et 6, caractérisé en ce que les disques de preneur d'encre (4.1, 4.2) sont disposés en quinconce.
8. Dispositif de dosage d'encre selon les revendications 1, 5, 6 et 7, caractérisé en ce que les disques de preneur d'encre (4.1,4.2) sont susceptibles d'être commandés, par l'intermédiaire du dispositif à leviers (8, 8.2), au moyen de tiges articulées (13, 14).
EP84105091A 1983-07-07 1984-05-05 Dispositif d'encrage pour machines d'impression typographique et machines d'impression offset Expired EP0131103B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84105091T ATE41361T1 (de) 1983-07-07 1984-05-05 Farbdosiervorrichtung an buch- und offsetdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3324445A DE3324445C2 (de) 1983-07-07 1983-07-07 Farbdosiervorrichtung an Buch- und Offsetdruckmaschinen
DE3324445 1983-07-07

Publications (3)

Publication Number Publication Date
EP0131103A2 EP0131103A2 (fr) 1985-01-16
EP0131103A3 EP0131103A3 (en) 1986-07-30
EP0131103B1 true EP0131103B1 (fr) 1989-03-15

Family

ID=6203342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105091A Expired EP0131103B1 (fr) 1983-07-07 1984-05-05 Dispositif d'encrage pour machines d'impression typographique et machines d'impression offset

Country Status (5)

Country Link
US (1) US4559874A (fr)
EP (1) EP0131103B1 (fr)
JP (1) JPS6036168A (fr)
AT (1) ATE41361T1 (fr)
DE (1) DE3324445C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01502502A (ja) * 1987-03-03 1989-08-31 コンセプタ・プリント・アクチエンゲゼルシヤフト カラーインキ塗布を制御できるインキ装置
US4798138A (en) * 1988-01-12 1989-01-17 Brodie George R Liquid distribution system
CA2005045A1 (fr) * 1989-05-08 1990-11-08 Frank L. Shriver Methode pour decorer les boites de conserve, et appareil connexe
AU632956B2 (en) * 1990-08-31 1993-01-14 Goss Graphic Systems, Inc. Keyless printing system for keyless lithographic printing
US5140900A (en) * 1991-06-24 1992-08-25 B. Bunch Company, Inc. Ink distribution assembly
DE10000903A1 (de) * 1999-02-05 2000-08-10 Heidelberger Druckmasch Ag Verfahren zum Betrieb einer Druckmaschine und Druckmaschine zur Durchführung des Verfahrens
EP2998117A1 (fr) * 2014-09-19 2016-03-23 KBA-NotaSys SA Dispositif d'encrage d'une presse d'impression, presse d'impression comprenant celui-ci et procédé de production d'un rouleau preneur

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH169362A (de) * 1932-07-29 1934-05-31 Maschf Augsburg Nuernberg Ag Farbwerk für Rotationsdruckmaschinen.
DE606613C (de) * 1933-07-28 1934-12-06 Gerhard Wulf Vorrichtung zum Bedrucken von Gewebe- oder Papierbahnen
US2788741A (en) * 1953-12-02 1957-04-16 Levey Fred K H Co Inc Printing press accessory
US3037449A (en) * 1958-01-21 1962-06-05 Carl Allers Ets Ductor roller for use in distribution roller systems for liquid and semiliquid substances
US3261287A (en) * 1964-02-03 1966-07-19 John C Motter Printing Press C Liquid distributing apparatus
US3417692A (en) * 1967-03-22 1968-12-24 John C Motter Printing Press C Double ductor
US3552311A (en) * 1968-07-12 1971-01-05 Nello J Petri Dampening system for a lithographic press
DD104259A1 (fr) * 1973-05-08 1974-03-05
DE2924635A1 (de) * 1979-06-19 1981-01-15 Gerhard Werner Farbdosier-vorrichtung fuer buch- und offsetdruckmaschinen
JPS58990B2 (ja) * 1980-11-07 1983-01-08 リョービ株式会社 印刷機のインキ及び水量自動調整装置
SE428544B (sv) * 1981-11-06 1983-07-11 Wifag Maschf Hoppvalsanordning
DD203704A1 (de) * 1981-07-17 1983-11-02 Matthias Schuetze Vorrichtung zur farbdosierung in farbwerken von druckmaschinen
FR2516863B1 (fr) * 1981-11-25 1985-11-15 Marinoni Procede et dispositif de transfert d'encre entre un rouleau d'encrier et un premier rouleau encreur pour presse a imprimer
DD203016A1 (de) * 1981-11-30 1983-10-12 Hans Johne Farbwerk fuer druckmaschinen

Also Published As

Publication number Publication date
ATE41361T1 (de) 1989-04-15
DE3324445A1 (de) 1985-01-24
EP0131103A2 (fr) 1985-01-16
JPS6036168A (ja) 1985-02-25
DE3324445C2 (de) 1985-09-12
US4559874A (en) 1985-12-24
EP0131103A3 (en) 1986-07-30

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