EP0903227A2 - 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
EP0903227A2
EP0903227A2 EP98113926A EP98113926A EP0903227A2 EP 0903227 A2 EP0903227 A2 EP 0903227A2 EP 98113926 A EP98113926 A EP 98113926A EP 98113926 A EP98113926 A EP 98113926A EP 0903227 A2 EP0903227 A2 EP 0903227A2
Authority
EP
European Patent Office
Prior art keywords
printing
roller
cylinder
inking unit
offset
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
EP98113926A
Other languages
German (de)
English (en)
Other versions
EP0903227A3 (fr
EP0903227B1 (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
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 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
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices

Definitions

  • the invention relates to a printing tower of a printing press.
  • the dampening units are also designed in several variants, with the usual dampening units including a dampening application 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 chambered doctor blade device being assigned to the printing form cylinder in order to apply 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.
  • the object of the invention is a printing tower of high variability for multiple purposes with a similar structure and / or with partial use already existing and / or by exchanging existing ones Means against other appropriate means.
  • the solutions according to the invention ensure that existing ones conventional printing towers in connection with a dampening system for coloring offset printing forms or without a dampening unit serve for the coloring of dry offset printing forms, partly Use existing resources using some additives for other purposes - anilox coloring of offset printing forms or dry offset printing forms or flexographic printing forms (clichés) can be converted (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 manufacturer's factory with partial use of the same Medium is easily possible (equipment variant).
  • the equipment variant there is again a first Equipment variant in which the pressure tower for all of the above Purposes and when used for a specific purpose certain means are deactivated and a second equipment variant, where the pressure tower is specifically 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 and is 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 inking unit 6 and upper inking unit 7.
  • the upper inking unit 7 contains an ink supply line 8 with a divider roller 9 for connecting the upper inking unit 7 to the lower inking unit 6.
  • the lower 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 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 or to an odd number of rollers either via a connecting roller 13 connecting their adjacent applicator rollers 11 and / or via a bridge group 14 connecting the distribution cylinders 12.
  • 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).
  • FIG. 2 shows the printing tower for printing with anilox inking - offset printing, flexographic printing and dry offset, ie this printing tower can also be used for anilox inking of the offset printing form 3.
  • An anilox roller 21 with a chambered doctor blade 22 is assigned to a roller of the lower inking unit 6.
  • this roller is either one of the applicator roller 11 or a roller of the bridge group 14 with the same direction of rotation.
  • the upper 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 multiple purposes and certain agents are deactivated when used for a specific purpose.
  • the upper inking unit 7 is present in the equipment variant of the printing tower 1 for conventional offset printing and dry offset; the upper 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 a plate printing form 24.
  • the upper inking unit 7 is activated for conventional offset printing and dry offset printing and the upper 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. it functions as an application cylinder and if the offset cylinder is covered with a printing form (cliché) instead of a blanket covering, i.e. if it functions as a form cylinder, the ink is transferred directly to the sheet to be printed.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
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 true EP0903227A2 (fr) 1999-03-24
EP0903227A3 EP0903227A3 (fr) 1999-07-07
EP0903227B1 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
DE19734101A1 (de) 1999-02-11
EP0903227A3 (fr) 1999-07-07
DE59803592D1 (de) 2002-05-08
EP0903227B1 (fr) 2002-04-03

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