EP0144687B1 - Dispositif de dosage de l'encre dans le système d'encrage d'une machine à imprimer - Google Patents

Dispositif de dosage de l'encre dans le système d'encrage d'une machine à imprimer Download PDF

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Publication number
EP0144687B1
EP0144687B1 EP84112909A EP84112909A EP0144687B1 EP 0144687 B1 EP0144687 B1 EP 0144687B1 EP 84112909 A EP84112909 A EP 84112909A EP 84112909 A EP84112909 A EP 84112909A EP 0144687 B1 EP0144687 B1 EP 0144687B1
Authority
EP
European Patent Office
Prior art keywords
ink
ink metering
metering device
roller
inking unit
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
EP84112909A
Other languages
German (de)
English (en)
Other versions
EP0144687A3 (en
EP0144687A2 (fr
Inventor
Hermann Fischer
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
Publication of EP0144687A2 publication Critical patent/EP0144687A2/fr
Publication of EP0144687A3 publication Critical patent/EP0144687A3/de
Application granted granted Critical
Publication of EP0144687B1 publication Critical patent/EP0144687B1/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
    • 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
    • B41F31/10—Applications of feed or duct rollers
    • 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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/32—Lifting or adjusting devices
    • B41F31/36—Lifting or adjusting devices fluid-pressure operated

Definitions

  • the invention relates to an ink metering device for the inking unit of a printing press, in particular an offset printing machine, with an ink fountain roller carrying a pre-metered ink layer, from which ink can be transferred to the first inking roller (grater) by means of swiveling, spaced-apart disks.
  • a device for zone screwless ink metering on printing presses is already known, in which instead of the usual inking roller individually pivotable metering disks are provided, which are located between the ink fountain roller rotating at a relatively low speed and an inking roller which usually rotates at machine speed (first grater ) can be pivoted back and forth, so that fresh ink is supplied to the inking unit via the individual metering disks in accordance with the zone-specific ink requirement.
  • the object of the invention is to provide an ink metering device of the type mentioned at the outset, with which ink metering by means of pivotable ink metering disks between ink fountain rollers rotating at low speed and a first inking roller (revolver) rotating at high speed is made possible without using conventional ink zone adjusting means.
  • the ink metering disks should always be available on the first inking roller rotating at machine speed for the distribution of the ink film.
  • the ink fountain roller 2 is transferred by means of axially extending, spaced-apart ink metering elements in the form of disks 4 to the first inking roller 5, which is driven at machine speed, that is, the so-called first grater.
  • the color dosing discs 4 are therefore individual, i.e. individually controllable in order to transfer the required amount of ink to the inking roller 5 after having previously taken over a corresponding amount of ink from the predosed ink layer of the ink fountain roller 2.
  • the ink metering elements 4 are constantly available for the rubbing of the ink film on the first inking roller 5, they should be kept in permanent contact with the inking roller 5.
  • the ink metering elements 4 are therefore pivoted in the direction of the ink fountain roller 2 along the path Y (FIG. 3) while maintaining their contact with the inking roller 5. Since the ink fountain roller has a much lower speed than the inking roller 5 which usually rotates at machine speed, the invention prevents the ink metering disks 4 from coming into contact with the ink fountain roller 2 and the inking roller 5 at the same time.
  • the pivoting movement of the color metering disks 4 over the path Y is limited as.
  • an adjustable stop 7, which is shown schematically in FIG.
  • the metering disc can take over ink from the ink fountain roller 2 while maintaining its contact with the inking roller 5, since the gap X is so matched to the thickness of the ink film on the ink fountain roller 2 that a certain amount of the ink film located on the ink fountain roller 2 can be transferred via this gap X to the respectively applied ink metering elements 4 or 4 '.
  • the amount of ink that is required in the individual ink zones can be controlled in an advantageous manner in that either the contact time or the contact frequency of the ink metering elements 4 on the ink fountain roller 2 corresponds is varied accordingly. This is possible, for example, with the circuit shown in FIG. 7, which will be described in detail later.
  • FIGS. 2 to 7 show an advantageous embodiment of the control of the ink metering elements 4 according to the invention.
  • the ink metering elements 4 are arranged next to one another in the axial direction of the rollers 2, 5 and are spaced apart from one another.
  • Each color metering element 4 is rotatably held on at least one — but preferably two — approximately angular pivot levers 6.
  • One end of the pivot lever 6 is pivotably arranged on a fixed shaft 8.
  • the swivel levers 6 are kept at a distance from one another by bushings 8 '.
  • the other end of each pivot lever 6 is connected to a control device, preferably a reciprocating piston.
  • a pneumatically actuated reciprocating piston is formed, consisting of the pistons 9 and the cylinder 10 comprising them.
  • the cylinder 10 is pivotably arranged in a bearing 11.
  • the stroke movement of the piston 9 can be adjusted by means of mids 12, 13.
  • the amount of movement of the piston rod 14 connected to the piston 9, which is articulated to one end of a pivot lever 6, can be preset.
  • a metering element 4 is rotatably arranged on a pin 15, while the piston rod 14 is connected to one end of the pivoting lever 6 via a bolt 17.
  • the setting of the degree of pivoting of the pivot lever 6 is carried out with the aid of the nuts 12, 13 so that the desired distance X is maintained when the ink metering disks 4 are applied to the ink fountain roller 2, whereby, as can be seen from FIGS. 1 and 3, always one Contact between the ink metering elements 4 and the inking roller 5 is to be maintained.
  • the roller 4 in the direction of the roller 5 e.g. the swivel levers 6 can each be arranged on the shaft 8 via eccentrics.
  • the cylinder 10 is advantageously pivotally arranged in the comb bar 17.
  • bearing pins 18, 19 are provided on both sides of the cylinder 10, as can be seen from FIG. 2 and FIGS. 5 and 6.
  • the bearings 11 are covered by bearing caps 20.
  • the nuts 12, 13 are arranged on a thread 22.
  • the supports 21 serve to receive the bearing caps 20.
  • FIG. 7 shows a clock generator 23 which can be controlled in the desired manner, for example by means of a computer, in accordance with the color requirement in the respective color zone.
  • This is connected to a solenoid control valve 24, from which two control lines 25, 26 are applied to the cylinder 10. If the compressed air P 'is applied to the cylinder 10, for example via the line 26, the piston rod 14 is extended in accordance with that by the nuts 12, 13 preset path. The piston rod 14 is drawn in by applying P via the lines 25 of the piston 10.
  • the ink metering device according to the invention has a compact construction and does not impose any shock load on the drive, so that there is no fear of a negative influence on the pressure.

Landscapes

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

Claims (6)

1. Dispositif de dosage de l'encre pour le dispositif d'encrage d'une presse à imprimer, en particulier, d'une presse à imprimer offset, comprenant un rouleau d'encrier qui porte une couche d'encre préalablement dosée, d'où l'encre peut être reportée sur le premier rouleau du dispositif d'encrage (le distributeur), au moyen de disques oscillants espacés les uns des autres qui ont la largeur des zones d'encrage, caractérisé en ce que les disques doseurs d'encre (4) restent en permanence en contact avec le premier rouleau (5) du dispositif d'encrage, qui tourne à la vitesse de la machine, en ce que la course de rapprochement (Y) des disques doseurs d'encre (4) vers le rouleau d'encrier (2) est limitée par des butées (7; 12,13) de manière à laisser subsister une fente (X) entre un disque doseur d'encre (14), qui est continuellement entraîné à la vitesse de la machine par le rouleau (5) du dispositif d'encrage, et le rouleau d'encrier (2), la largeur de cette fente pouvant être préalablement réglée par le réglage de la position des butées (7; 12, 13).
2. Dispositif de dosage de l'encre selon la revendication 1, caractérisé en ce que chaque disque doseur d'encre (4) est monté sur un levier oscillant (6) en forme d'équerre qui est tourillonné à l'une des ses extrémités sur un arbre (8) et dont l'autre extrémité est reliée à un vérin (9, 10, 14) dont la course est limitée par des butées réglables (12, 13).
3. Dispositif de dosage de l'encre selon la revendication 2, caractérisé en ce que le cylindre (10) du vérin (9, 10, 14) est monté oscillant dans des paliers (18, 19) de manière que les disques doseurs d'encre (4) décrivent un mouvement d'oscillation à peu près en arc de cercle.
4. Dispositif de dosage de l'encre selon les revendications 2 et 3, caractérisé en ce que les tourillons (18, 19) de chaque cylindre (10) sont montés dans les paliers (11) d'un peigne commun (17).
5. Dispositif de dosage de l'encre selon une des revendications 1 à 4, caractérisé en ce que les vérins (9,10,14) sont des vérins pneumatiques et sont commandés chacun par un distributeur électromagnétique (24).
6. Dispositif de dosage de l'encre selon une quelconque des revendications précédentes, caractérisé en ce que les leviers oscillants sont montés sur l'arbre (8), chacun dans un montage excentrique.
EP84112909A 1983-12-10 1984-10-26 Dispositif de dosage de l'encre dans le système d'encrage d'une machine à imprimer Expired - Lifetime EP0144687B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3344776 1983-12-10
DE3344776A DE3344776C1 (de) 1983-12-10 1983-12-10 Farbdosiervorrichtung für das Farbwerk einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP0144687A2 EP0144687A2 (fr) 1985-06-19
EP0144687A3 EP0144687A3 (en) 1987-05-27
EP0144687B1 true EP0144687B1 (fr) 1990-04-11

Family

ID=6216645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112909A Expired - Lifetime EP0144687B1 (fr) 1983-12-10 1984-10-26 Dispositif de dosage de l'encre dans le système d'encrage d'une machine à imprimer

Country Status (4)

Country Link
US (1) US4577558A (fr)
EP (1) EP0144687B1 (fr)
JP (1) JPS60141563A (fr)
DE (1) DE3344776C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3444891A1 (de) * 1984-12-08 1986-06-12 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbdosiervorrichtung fuer das farbwerk einer druckmaschine
DE3733375A1 (de) * 1987-10-02 1989-04-13 Metronic Geraetebau Flexo-druckeinheit
DE3942525A1 (de) * 1989-12-22 1991-06-27 Licentia Gmbh Druckwerk mit farbwerk
US5018444A (en) * 1990-02-28 1991-05-28 Wpc Machinery Corporation Ink applying system for a printing apparatus
US11383509B2 (en) * 2018-11-09 2022-07-12 Ball Corporation Metering roller for an ink station assembly of a decorator and a method of decorating a container with the decorator
WO2025074189A1 (fr) * 2024-09-21 2025-04-10 Salahi Mahdi Ensemble encreur de machine d'impression doté d'un nouveau mécanisme de transfert d'encre

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1737628A (en) * 1925-07-14 1929-12-03 Wood Newspaper Mach Corp Inking mechanism
DE591941C (de) * 1932-07-30 1934-01-30 Maschf Augsburg Nuernberg Ag Farbwerk fuer Rotationsdruckmaschinen
DE1129446B (de) * 1957-05-14 1962-05-17 Oskar Posch Dr Ing Vorrichtung zum Bedrucken laufender Stoffbahnen
US3063369A (en) * 1958-07-11 1962-11-13 Timson Ernest Arthur Rotary printing machines
DE1093804B (de) * 1959-01-17 1960-12-01 Roland Offsetmaschf Farbheber
CH509156A (de) * 1969-08-09 1971-06-30 Roland Offsetmaschf Feuchteinrichtung für lithographische Druckmaschinen
DD104259A1 (fr) * 1973-05-08 1974-03-05
US3926116A (en) * 1974-07-01 1975-12-16 Webcrafters Inc Dampening apparatus for offset printing press
DE2553177A1 (de) * 1975-02-05 1976-08-19 Polygraph Leipzig Dosiersystem fuer ein farb- oder feuchtwerk
US4033262A (en) * 1976-03-18 1977-07-05 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Ink applicator for printing apparatus
DE2703425B1 (de) * 1977-01-28 1978-03-30 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen
DE2924635A1 (de) * 1979-06-19 1981-01-15 Gerhard Werner Farbdosier-vorrichtung fuer buch- und offsetdruckmaschinen
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
DD210535A3 (de) * 1982-06-02 1984-06-13 Polygraph Leipzig Vorrichtung zum verstellen von farb- oder feuchtmittelauftragwalzen

Also Published As

Publication number Publication date
EP0144687A3 (en) 1987-05-27
EP0144687A2 (fr) 1985-06-19
JPS60141563A (ja) 1985-07-26
US4577558A (en) 1986-03-25
DE3344776C1 (de) 1985-05-30

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