EP0453854B1 - Engommage de la forme d'impression d'une machine à imprimer - Google Patents

Engommage de la forme d'impression d'une machine à imprimer Download PDF

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Publication number
EP0453854B1
EP0453854B1 EP91105541A EP91105541A EP0453854B1 EP 0453854 B1 EP0453854 B1 EP 0453854B1 EP 91105541 A EP91105541 A EP 91105541A EP 91105541 A EP91105541 A EP 91105541A EP 0453854 B1 EP0453854 B1 EP 0453854B1
Authority
EP
European Patent Office
Prior art keywords
roller
gumming
damping
printing
dampening
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
EP91105541A
Other languages
German (de)
English (en)
Other versions
EP0453854B2 (fr
EP0453854A3 (en
EP0453854A2 (fr
Inventor
Anton Rodi
Hermann Beisel
Bernd Müller
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
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0453854A2 publication Critical patent/EP0453854A2/fr
Publication of EP0453854A3 publication Critical patent/EP0453854A3/de
Application granted granted Critical
Publication of EP0453854B1 publication Critical patent/EP0453854B1/fr
Publication of EP0453854B2 publication Critical patent/EP0453854B2/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
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/08—Damping; Neutralising or similar differentiation treatments for lithographic printing formes; Gumming or finishing solutions, fountain solutions, correction or deletion fluids, or on-press development
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/02—Cleaning arrangements or devices for forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices

Definitions

  • the invention relates to a printing press with an inking and a dampening unit, which cooperate with a printing form by means of inking and dampening application rollers, and with a control device for moving the dampening application roller into a contact position or distance from the printing form (DE 31 46 223 C2).
  • a printing process is ended (e.g. parking an offset printing press overnight), it is advisable to protect the printing plate from environmental influences, e.g. Can cause corrosion to protect.
  • a so-called gumming agent is used for this purpose, e.g. Contains gum arabic. The gum is applied by the printer to the printing plate, creating a protective layer that must be removed by the printer when printing is resumed. The previous procedure is time-consuming and - with regard to the removal of the protective layer due to the chemical agents to be used - can possibly only be carried out in conjunction with protective measures.
  • the invention is therefore based on the object of specifying a printing press of the type mentioned at the outset, in which the gumming of the printing form can be carried out in a rational and harmless manner. Furthermore, it should also be possible to remove the rubber coating in a simple manner.
  • the dampening roller which supplies a dampening solution to the printing form in "normal operation" (e.g. in the printing state) therefore performs a double function in that it transfers the gumming liquid to the printing form during the gumming process.
  • the gumming dipping roller conveys the gumming liquid from a trough and transfers a gumming film to the dampening roller, which in turn carries out the transfer to the printing form.
  • the dampening unit of offset printing machines with a distribution cylinder which is machine-driven and which interacts with the dampening application roller.
  • the dampening roller receives an additional drive torque via the distribution cylinder, so that there is no slip to the printing form.
  • the printing form is preferably the printing plate already mentioned, which is clamped onto a plate cylinder of the offset printing press.
  • the mentioned distribution cylinder is preferably used to transfer the rubberizing agent to the dampening roller by forming a link between the rubberizing dipping roller and the dampening roller.
  • a spraying device which supplies the dampening roller and / or the distribution cylinder with gumming liquid. This means that the gumming liquid is sprayed onto the outer surface of the dampening roller and / or the distribution cylinder.
  • the invention relates to a method for gumming a printing form of a printing press, in particular an offset printing press, which has an inking and a dampening unit, wherein the supply of the gumming liquid to the printing form takes place via a dampening roller of the dampening unit.
  • Fig. 1 shows a part of the rollers of an offset printing machine in a schematic representation. essential components of the offset printing machine, such as the inking unit, the blanket cylinder and the printing cylinder are not shown for the sake of simplicity.
  • 1 shows a dampening unit 1 with a dampening solution delivery device 2, which has a dampening solution trough 4 filled with dampening solution 3.
  • a dampening solution immersion roller 5 provided with a drive dips into the dampening solution 3 with a portion of its outer surface.
  • the dampening unit 1 also has a metering roller 6, which is coupled to the dampening solution immersion roller 5 via a gear transmission. With the metering roller 6, a dampening roller 7 cooperates, which comes into contact with a printing plate 8 in the contact position.
  • the printing form 8 is preferably designed as a printing plate (not shown) mounted on a plate cylinder 9.
  • a driven distribution cylinder 10 is provided, which cooperates with the dampening roller 7.
  • the dampening solution 3 is transferred from the dampening solution immersion roller 5 as a thin dampening film to the metering roller 6 and from there reaches the printing form 8 via the dampening application roller 7.
  • the dampening solution is metered on the one hand by varying the slip between the metering roller 6 and the dampening roller 7.
  • the distribution cylinder 10 has the task of incorporating dampening solution particles (in particular water) into the ink of an inking unit (not shown) on the dampening roller. This ink comes from the printing form 8 and possibly from an intermediate roller which is in contact with an inking roller and the dampening roller 7. In this respect, the intermediate roller forms a connecting link between the dampening unit 1 and the inking unit (not shown).
  • a gumming device 11 which has a gumming dipping roller 12 which dips into a tub 14 filled with gumming liquid 13.
  • roller arrangement assumes a position in which a rubber coating is applied to the printing form 8.
  • Rubberizing agent 13 conveyed by the driven rubber-dipping roller 12 is transferred to the distribution cylinder 10 and from there to the dampening roller / and then reaches the printing plate.
  • rollers belonging to the dampening unit 1, namely the dampening application roller 7 and the distribution cylinder 10 are used according to the invention for another, further purpose, namely the gumming of the printing form 8. It is therefore possible to apply the rubber coating automatically.
  • the rubber coating forms a protective layer that prevents corrosion etc. of the printing plate.
  • the dampening solution immersion roller 5 and thus the metering roller 6 is also set to a very low speed.
  • the speed of the metering roller is adjusted by means of a dampening unit drive (not shown) in such a way that there is as little slip as possible between the dampening roller 7 and the metering roller 6.
  • FIG. 2 shows a further exemplary embodiment, which differs from the exemplary embodiment in FIG. 1 in that the gumming device 11 is designed as a spray device 15 which sprays the gumming liquid onto the dampening roller 7. From there, the gumming liquid 13 is then transferred to the printing form 8.
  • the spray device 15 it is also possible for the spray device 15 to assume a position in which its spray jet strikes the distribution cylinder 10, which transfers the gumming liquid to the dampening roller 7.
  • the speed and slip of the metering roller 6 - as mentioned above - are set in a corresponding manner to avoid watering down of the gumming liquid.
  • the distance between the dampening roller 7 and the metering roller 6 is of course also

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Forming Counted Batches (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Coating Apparatus (AREA)

Claims (6)

1. Machine à imprimer comprenant un mécanisme encreur et un mécanisme mouilleur qui coopèrent par des rouleaux toucheurs d'encrage et de mouillage avec une forme d'impression, ainsi qu'un dispositif de commande destiné à déplacer le rouleau toucheur de mouillage pour le mettre en position d'appui contre ou en position à distance de la forme d'impression, caractérisée en ce que, pour déposer un gommage sur la forme d'impression (8), un rouleau plongeur de gommage (12) plongeant dans un bac (14) de liquide de gommage est associé au rouleau toucheur de mouillage (7).
2. Machine à imprimer selon la revendication 1, caractérisée en ce qu'un rouleau de transfert (10) appartenant au mécanisme de mouillage (1) est disposé entre le rouleau plongeur de gommage (12) et le rouleau toucheur de mouillage (7).
3. Machine à imprimer comprenant un mécanisme encreur et un mécanisme mouilleur qui coopèrent par des rouleaux toucheurs d'encrage et de mouillage avec une forme d'impression, ainsi qu'un dispositif de commande destiné à déplacer le rouleau toucheur de mouillage pour le mettre en position d'appui contre ou en position à distance de la forme d'impression, caractérisée en ce que, pour déposer un gommage sur la forme d'impression (8), un dispositif de pulvérisation (15) associé au rouleau toucheur de mouillage (7) alimente en liquide de gommage (13) le rouleau toucheur de mouillage (7) et/ou un rouleau de transfert (10) disposé contre le rouleau toucheur de mouillage (7).
4. Procédé de gommage d'une forme d'impression d'une machine à imprimer, en particulier selon l'une ou plusieurs des revendications précédentes, qui comprend un mécanisme encreur et un mécanisme mouilleur, caractérisé en ce que l'apport de liquide de gommage (13) à la forme d'impression s'effectue par un rouleau toucheur de mouillage (7) du mécanisme mouilleur (1).
5. Procédé selon une revendication précédente 4, caractérisé en ce que, pendant le processus de gommage, la liaison entre le rouleau toucheur de mouillage et un dispositif (2) de distribution d'agent mouillant est interrompue ou le réglage est effectué de manière que le débit d'agent mouillant soit aussi faible que possible.
6. Procédé selon l'une des revendications 4 et 5, caractérisé en ce que, pendant un processus de lavage du cliché fixé et de préférence gommé, le rouleau toucheur de mouillage (7) occupe sa position en appui contre le cylindre porte-cliché (9) et une séparation est effectuée entre le rouleau toucheur de mouillage (7) et le rouleau de dosage (6).
EP91105541A 1990-04-27 1991-04-08 Engommage de la forme d'impression d'une machine à imprimer Expired - Lifetime EP0453854B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4013464 1990-04-27
DE4013464A DE4013464C2 (de) 1990-04-27 1990-04-27 Gummieren der Druckform einer Druckmaschine

Publications (4)

Publication Number Publication Date
EP0453854A2 EP0453854A2 (fr) 1991-10-30
EP0453854A3 EP0453854A3 (en) 1993-02-24
EP0453854B1 true EP0453854B1 (fr) 1995-07-19
EP0453854B2 EP0453854B2 (fr) 1998-11-04

Family

ID=6405219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105541A Expired - Lifetime EP0453854B2 (fr) 1990-04-27 1991-04-08 Engommage de la forme d'impression d'une machine à imprimer

Country Status (7)

Country Link
US (1) US5170706A (fr)
EP (1) EP0453854B2 (fr)
JP (1) JPH04229261A (fr)
AT (1) ATE125202T1 (fr)
CA (1) CA2039362C (fr)
DE (2) DE4013464C2 (fr)
ES (1) ES2077100T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224332A1 (de) * 1992-07-23 1994-01-27 Heidelberger Druckmasch Ag Plattenzylinder für Rotationsdruckmaschinen
DE4312523C2 (de) * 1993-04-16 1996-01-18 Heidelberger Druckmasch Ag Feuchtwerk für Offsetdruckmaschinen
DE4312877A1 (de) * 1993-04-20 1994-10-27 Heidelberger Druckmasch Ag Umschaltbare Lackversorgung an Veredelungseinheiten in Rotationsdruckmaschinen
DE4319258C2 (de) * 1993-06-09 2003-10-09 Heidelberger Druckmasch Ag Reinigungsvorrichtung für Druckmaschinen
DE4322615C2 (de) * 1993-07-07 1997-10-23 Heidelberger Druckmasch Ag Wascheinrichtung für das Farbwerk von Rotationsdruckmaschinen
US5423256A (en) * 1994-02-07 1995-06-13 Villarreal; Jose A. Form roller for printing press
DE19648567A1 (de) * 1996-11-23 1998-05-28 Decoufle Sarl Anordnung zum Zuführen von fließfähiger Druckfarbe zu einem Druckwerk
DE19702364C1 (de) * 1997-01-23 1998-04-23 Windmoeller & Hoelscher Klebstoffauftragsvorrichtung
DE29814763U1 (de) 1998-08-18 1998-11-05 MAN Roland Druckmaschinen AG, 63075 Offenbach Feuchtwerk für eine Druckmaschine
DE29906466U1 (de) * 1999-04-13 1999-07-01 MAN Roland Druckmaschinen AG, 63075 Offenbach Druckmaschine mit einem Farb- und einem Feuchtwerk
DE20010388U1 (de) * 2000-06-09 2001-10-11 Timatec Maschinen Und Anlagenbau Gmbh, Velden Vorrichtung zum Auftragen von Substanzen auf bahnförmiges Material
DE10209861B4 (de) * 2002-03-06 2012-10-04 manroland sheetfed GmbH Verfahren und Vorrichtung zur Farbzufuhrsteuerung
JP2003320644A (ja) * 2002-04-30 2003-11-11 Miyakoshi Printing Machinery Co Ltd 水着けローラ駆動装置
DE102005006064A1 (de) * 2005-02-10 2006-08-24 Man Roland Druckmaschinen Ag Vorrichtung zum Auftragen eines Fluids auf eine Druckform
US8276512B2 (en) 2006-12-20 2012-10-02 Heidelberger Druckmaschinen Ag Process and apparatus for treating an imaged printing form, re-imageable printing form and machine for processing printing material
JP6114503B2 (ja) * 2012-04-26 2017-04-12 株式会社小森コーポレーション インキ供給方法およびインキ供給装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH110499A (fr) * 1923-07-20 1925-06-16 Linotype Machinery Ltd Dispositif pour gommer les surfaces d'impression dans les presses lithographiques rotatives.
US3264981A (en) * 1964-04-15 1966-08-09 Addressograph Multigraph Tandem printer
US3302296A (en) * 1964-08-14 1967-02-07 Ibm Method and apparatus for drying of moisture-setting inks
US3604349A (en) * 1968-12-24 1971-09-14 Addressograph Multigraph Two-system moisture applicator for a lithographic press
JPS518047B1 (fr) * 1969-09-15 1976-03-13
DE2345183C2 (de) * 1973-09-07 1975-03-20 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Einrichtung zum Lackieren od.dgl. an einer Druckmaschine
JPS5256603A (en) * 1975-10-31 1977-05-10 Sumitomo Chemical Co Liquid of forming protection film for lithographic press plate
DE3146223C2 (de) * 1981-11-21 1985-03-21 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Feucht-Farbwerk für Offsetdruckmaschinen
JPS5964396A (ja) * 1982-10-05 1984-04-12 Fuji Photo Film Co Ltd 平版印刷版用版面保護剤
FR2569611A1 (fr) * 1984-09-05 1986-03-07 Assant Joel Dispositif applicable aux machines d'impression offset notamment pour le mouillage et/ou l'encrage
JPS6266887A (ja) * 1985-09-18 1987-03-26 ブラザー工業株式会社 ミシン
IT1214887B (it) * 1985-12-04 1990-01-18 Ghisalberti Luigi Unita' stampante reversibile per macchine off-set conglobante dispositivi per la bagnatura e verniciatura.
DE3623590A1 (de) * 1986-07-12 1988-02-04 Miller Johannisberg Druckmasch Filmfeuchtwerk fuer offsetdruckmaschinen
DE3832527A1 (de) * 1987-09-29 1989-04-13 Jpe Kk Befeuchtungssystem fuer eine offsetdruckmaschine
US4906296A (en) * 1989-02-01 1990-03-06 Zweig Leon A Catalytic fountain solution

Also Published As

Publication number Publication date
DE59106002D1 (de) 1995-08-24
EP0453854B2 (fr) 1998-11-04
ES2077100T3 (es) 1995-11-16
DE4013464C2 (de) 1995-01-05
EP0453854A3 (en) 1993-02-24
DE4013464A1 (de) 1991-10-31
JPH04229261A (ja) 1992-08-18
CA2039362A1 (fr) 1991-10-28
US5170706A (en) 1992-12-15
EP0453854A2 (fr) 1991-10-30
ATE125202T1 (de) 1995-08-15
CA2039362C (fr) 1998-09-29

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