EP0903227B1 - Tour d'impression d'une machine à imprimer - Google Patents

Tour d'impression d'une machine à imprimer Download PDF

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Publication number
EP0903227B1
EP0903227B1 EP98113926A EP98113926A EP0903227B1 EP 0903227 B1 EP0903227 B1 EP 0903227B1 EP 98113926 A EP98113926 A EP 98113926A EP 98113926 A EP98113926 A EP 98113926A EP 0903227 B1 EP0903227 B1 EP 0903227B1
Authority
EP
European Patent Office
Prior art keywords
printing
roller
cylinder
inking mechanism
forme
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
EP98113926A
Other languages
German (de)
English (en)
Other versions
EP0903227A2 (fr
EP0903227A3 (fr
Inventor
Roland Kühn
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.)
KBA Planeta AG
Original Assignee
KBA Planeta AG
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Filing date
Publication date
Application filed by KBA Planeta AG filed Critical KBA Planeta AG
Publication of EP0903227A2 publication Critical patent/EP0903227A2/fr
Publication of EP0903227A3 publication Critical patent/EP0903227A3/fr
Application granted granted Critical
Publication of EP0903227B1 publication Critical patent/EP0903227B1/fr
Anticipated expiration legal-status Critical
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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

Definitions

  • the invention relates to a printing tower of a printing press.
  • Printing towers which contain a printing form cylinder, an offset cylinder interacting with a printing cylinder and an inking and dampening unit (Teschner, Offsetdrucktechnik, ausschriften-Verlag Fellbach 1989, section 10.3.3 Farbwerke).
  • the inking units are known in many embodiments; however, all embodiments contain typical elements, such as an upper part of an inking unit with at least one ink supply line and a lower part of an inking unit with at least one applicator roller group, which contains two applicator rollers and a distribution cylinder connecting them.
  • the dampening units are also designed in several variants, the usual dampening units comprising a dampening roller, an upstream transfer roller and a duct roller rotating in a trough. These dampening units can be connected to the inking unit via a bridge roller to form an inking unit / dampening unit.
  • These printing towers described are earmarked, ie only designed for offset printing.
  • Printing towers for flexographic printing presses with anilox coloring are also known from the cited literature reference, an anilox roller with a chamber doctor blade device being assigned to the printing form cylinder for the application of low-viscosity printing ink.
  • This printing tower is also designed for a specific purpose and is particularly unsuitable for high-quality inking of the printing form.
  • EP-A-0764524 is a (lower) short inking unit of a web-fed rotary printing press that acts from below known with an anilox roller and a chamber doctor blade system.
  • a pressure tower which can be used alternatively by one with partial use of already existing funds Roller inking unit can be converted to a short inking unit is not disclosed.
  • EP-A-0257365 discloses a convertible inking unit of a sheet-fed rotary printing press, which is equipped both with a conventional roller inking unit and with a short inking unit containing a squeeze roller ink supply device.
  • the short inking unit is suitable and usable due to the ink supply system used (squeeze roller inking unit) and the structure and interaction of the systems (introduction of the connecting roller in the opposite direction) for quality-reduced pressure work.
  • From DE 3906648 A1 an application unit for lacquer with an anilox roller rotating in a trough and a doctor blade is known.
  • the object of the invention is a printing tower of high variability for several purposes with the like Structure and / or with partial use of existing ones and / or by exchanging existing ones Means against other appropriate means.
  • the solutions according to the invention ensure that existing conventional printing towers /, that in connection with a dampening unit for the coloring of offset printing forms or without Dampening unit for inking dry offset printing forms, with partial use of existing ones Agents using some additives for other purposes - anilox staining of Converted offset printing forms or dry offset printing forms or flexographic printing forms (clichés) can be (conversion variant) or that the equipment of machines with conventional Offset printing towers or flexographic printing towers or dry offset printing towers or offset printing towers, Flexographic printing towers or dry offset printing towers with anilox coloring in the manufacturing plant with partial use of the same means is easily possible (equipment variant).
  • the equipment variant there is again a first equipment variant in which the Pressure tower is equipped for all purposes mentioned and when used for a specific purpose certain means are deactivated and a second equipment variant, in which the pressure tower is specially equipped for one or more purposes.
  • the printing tower 1 shown in FIG. 1 for conventional offset printing contains a printing form cylinder 2 with an offset printing form 3, an offset cylinder 4 which is in operative connection with the printing form cylinder 2, usually covered with a rubber blanket, and an inking unit 6; 7 and a dampening unit 15.
  • the offset cylinder 4 is operatively connected to a pressure cylinder 5 not arranged in the printing tower 1.
  • the inking unit 6; 7 contains the two main assemblies, lower part of the inking unit 6 and upper part of the inking unit 7.
  • the upper part of the inking unit 7 contains an ink supply line 8 with a divider roller 9 for connecting the upper part of the inking unit 7 to the lower part of the inking unit 6.
  • the lower part of the inking unit 6 contains two applicator roller groups 10, each consisting of two applicator rollers 11 and a distribution cylinder 12 connecting them; an embodiment with only one applicator roller group is also possible.
  • the connection between the lower and upper part of the inking unit is realized via the divider roller 9 and the distribution cylinder 12.
  • the two applicator roller groups 10 are connected to one another either by a connecting roller 13 connecting their adjacent applicator rollers 11 and / or by a bridge group 14 connecting the distribution cylinders 12 to an even or an odd number of rollers.
  • the dampening unit 15 consists of a dampening roller 16, an upstream transfer roller 17 and one of these upstream duct roller 18 which rotates in a trough 19.
  • the dampening unit 15 can be connected to the applicator roller group 10 via a bridge roller 20 (active connection of the dampening applicator roller 16 / bridge roller 20 / applicator roller 11). If the printing form cylinder 2 is coated with a dry offset printing form 23, the dampening unit 15 is deactivated (indicated by a two-way arrow).
  • a roller of the lower part of the inking unit 6 is an anilox roller 21 with a chamber doctor blade 22 assigned. In the inking unit configuration shown in FIG. 1, this roller is a roller of bridge group 14 with the same direction of rotation.
  • the upper part of the inking unit 7 is either not present, ie the printing tower is equipped for special purposes or is deactivated, ie the printing tower is equipped for several purposes and certain means are deactivated when used for a specific purpose.
  • the upper part of the inking unit 7 is present; the upper part of the inking unit 7 is missing for offset printing, dry offset and flexographic printing with anilox coloring, ie this is not installed.
  • the printing form cylinder 2 is covered with an elastic flexographic printing plate 24.
  • the upper part of the inking unit 7 is activated for conventional offset printing and dry offset printing and the upper part of the inking unit 7 is deactivated for offset printing, dry offset printing and flexographic printing with anilox inking. Deactivation takes place by removing the connection between the dividing roller 9 and the distribution cylinder 12.
  • the ink transfer to the sheet to be printed takes place indirectly.
  • the printing form cylinder is provided with a blanket covering instead of a printing form, i.e. this acts as an application cylinder and is the offset cylinder instead of a rubber blanket covered with a printing form (cliché), i.e. if this acts as a forme cylinder, the Ink transfer directly to the sheet to be printed.

Landscapes

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

Claims (10)

  1. Tour d'impression d'une machine d'impression, comprenant un cylindre offset (4) fonctionnant avec un cylindre d'impression (5) et un cylindre à matrice (2) fonctionnant en liaison avec la partie inférieure d'un mécanisme d'encrage (6), dans laquelle la partie inférieure du mécanisme d'encrage (6) comprend au moins un groupe de rouleaux toucheurs (10) ayant deux rouleaux toucheurs (11), et un rouleau de transfert (12) reliant les rouleaux toucheurs, et un dispositif d'amenée d'encre avec un rouleau de trame (21) tournant dans le même sens que le rouleau de la partie inférieure du mécanisme d'encrage (6), avec une raclette (22) associé à un rouleau de la partie inférieure du mécanisme d'encrage (6).
  2. Tour d'impression d'une machine d'impression, comprenant un cylindre à matrice constitué par le montage d'une matrice d'impression offset sur un cylindre offset (4) et fonctionnant avec un cylindre d'impression (5), et un cylindre toucheur formé par l'application d'une feuille de caoutchouc sur un cylindre à matrice (z) et fonctionnant avec une partie inférieure d'un mécanisme d'encrage, dans laquelle la partie inférieure du mécanisme d'encrage (6), comprend au moins un groupe de rouleaux toucheurs (10) ayant deux rouleaux toucheurs (11), et un rouleau de transfert (12) reliant les rouleaux toucheurs, et un rouleau de la partie inférieur du mécanisme d'encrage (6), et un dispositif d'amenée d'encre avec un rouleau de trame (21) tournant dans le même sens que le rouleau de la partie inférieure du mécanisme d'encrage (6), avec une raclette (22) associé à un rouleau de la partie inférieure du mécanisme d'encrage (6).
  3. Tour d'impression d'une machine d'impression suivant la revendication 1 ou 2,
    caractérisée en ce que
    la tour d'impression (1) comprend une partie supérieure d'un mécanisme d'encrage (7) associé à la partie inférieure du mécanisme d'encrage (6) et comprenant au moins une voie d'acheminement de l'encre (8), et la coopération de la partie inférieure avec la partie supérieure du mécanisme d'encrage (6 ; 7) est supprimée dès qu'ils sont séparés.
  4. Tour d'impression suivant la revendication 1 ou 2,
    caractérisée en ce que
    la partie inférieure du mécanisme d'impression (6) se compose de deux groupes de rouleaux toucheurs (10) et d'un rouleau de liaison (13) reliant deux rouleaux toucheurs (11) faisant partie de groupes différents, et le rouleau de trame (21) avec raclette (22) est asservi à un rouleau toucheur (11).
  5. Tour d'impression suivant la revendication 1 ou 2,
    caractérisée en ce que
    la partie inférieure du mécanisme d'impression (6) se compose de deux groupes de rouleaux toucheurs (10) et d'un groupe pontant (14) reliant les groupes de rouleaux toucheurs par l'intermédiaire d'un rouleau de transfert (12), et le rouleau de trame (21) avec raclette (22) est asservi à un rouleau du groupe pontant (14).
  6. Tour d'impression suivant la revendication 1 ou 2,
    caractérisée en ce que
    deux rouleaux toucheurs (11) de différents groupes de rouleaux toucheurs (10) sont reliés par un rouleau pointeur (13).
  7. Tour d'impression suivant la revendication 1 ou 2,
    caractérisée en ce que
    la matrice du cylindre (2) est un cliché offset (3) et un dispositif de mouillage (15) est asservi au cylindre à matrice (2).
  8. Tour d'impression suivant la revendication 1 ou 2,
    caractérisée en ce que
    la matrice du cylindre (2) est un cliché offset (3), et un dispositif de mouillage (15) relié au premier rouleau toucheur (11) du mécanisme d'encrage par l'intermédiaire d'un rouleau pontant (20, est asservi au cylindre à matrice (2)
  9. Tour d'impression suivant la revendication 1,
    caractérisée en ce que
    la matrice du cylindre (2) est un cliché offset sec (23).
  10. Tour d'impression suivant la revendication 1 ou 2,
    caractérisée en ce que
    la matrice du cylindre (2), ou du cylindre à matrice est une plaque d'impression flexographique élastique.
EP98113926A 1997-08-07 1998-07-24 Tour d'impression d'une machine à imprimer Expired - Lifetime EP0903227B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19734101 1997-08-07
DE19734101A DE19734101A1 (de) 1997-08-07 1997-08-07 Druckturm einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP0903227A2 EP0903227A2 (fr) 1999-03-24
EP0903227A3 EP0903227A3 (fr) 1999-07-07
EP0903227B1 true EP0903227B1 (fr) 2002-04-03

Family

ID=7838192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113926A Expired - Lifetime EP0903227B1 (fr) 1997-08-07 1998-07-24 Tour d'impression d'une machine à imprimer

Country Status (2)

Country Link
EP (1) EP0903227B1 (fr)
DE (2) DE19734101A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622550C2 (de) * 1986-07-04 1994-05-05 Koenig & Bauer Ag Offset-Kurzfarbwerk
DE3629081C1 (de) * 1986-08-27 1988-03-24 Roland Man Druckmasch Umstellbares Farbwerk einer Bogenrotationsdruckmaschine
DD282663A5 (de) * 1988-03-25 1990-09-19 Polygraph Leipzig Auftragwerk fuer druckmaschinen
DE4334803C1 (de) * 1993-10-13 1994-11-03 Roland Man Druckmasch Einrichtung zum Dosieren flüssiger Medien in Offsetdruckmaschinen, vorzugsweise für Lackiereinheiten
DE4438743C2 (de) * 1994-10-29 2003-09-25 Heidelberger Druckmasch Ag Offsetdruckmaschine
DE19535266A1 (de) * 1995-09-22 1997-04-03 Roland Man Druckmasch Kurzfarbwerk

Also Published As

Publication number Publication date
DE59803592D1 (de) 2002-05-08
EP0903227A2 (fr) 1999-03-24
EP0903227A3 (fr) 1999-07-07
DE19734101A1 (de) 1999-02-11

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