EP1752288A2 - Farbwanne zum Einfärben und/oder Zurückgewinnen von Druckfarben in Rotationstiefdruckmaschinen - Google Patents

Farbwanne zum Einfärben und/oder Zurückgewinnen von Druckfarben in Rotationstiefdruckmaschinen Download PDF

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Publication number
EP1752288A2
EP1752288A2 EP06016489A EP06016489A EP1752288A2 EP 1752288 A2 EP1752288 A2 EP 1752288A2 EP 06016489 A EP06016489 A EP 06016489A EP 06016489 A EP06016489 A EP 06016489A EP 1752288 A2 EP1752288 A2 EP 1752288A2
Authority
EP
European Patent Office
Prior art keywords
tray
ink
film
bush
area
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
EP06016489A
Other languages
English (en)
French (fr)
Other versions
EP1752288A3 (de
EP1752288B1 (de
Inventor
Angelo c/o A.CO.M. ADVANCED CONVERTING Zaffignani
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.)
Acom Advanced Converting Machinery Srl
Original Assignee
Acom Advanced Converting Machinery Srl
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 Acom Advanced Converting Machinery Srl filed Critical Acom Advanced Converting Machinery Srl
Publication of EP1752288A2 publication Critical patent/EP1752288A2/de
Publication of EP1752288A3 publication Critical patent/EP1752288A3/de
Application granted granted Critical
Publication of EP1752288B1 publication Critical patent/EP1752288B1/de
Not-in-force legal-status Critical Current
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
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/061—Inking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/30—Recovering used solvents or residues

Definitions

  • the present invention deals with a tray for inking and/or collecting ink in printing machines, in particular for rotogravure rotary machines.
  • Ink transfer occurs by pressing the ribbon against a smooth metal cylinder engraved with small cells forming a plurality of very small recesses forming the images to be printed, that is at the same time partially immersed in a tray containing ink; when rotating, the cylinder collects ink and afterwards it is scraped by a steel blade, or doctor blade, that slides along its whole length, in such a way that it remains present only in the recesses.
  • printing occurs by using a plurality of cylinders, each one of which is housed in different printing units, or printing stations.
  • the tray inside which the cylinder is immersed has two functions:
  • Object of the present invention is solving the above inconveniences and providing an arrangement that allows reducing the tray regenerating times by interposing, between tray and printing cylinder, a thin film that keeps the internal tray surface clean preventing its contact with ink.
  • Another object is removing, or as a minimum reducing the above inconvenience by adequately arranging the subject film, as claimed below, in order to keep the ink area limited to the collecting tray only.
  • 1 designates an inking tray, generally shapes as an open box, used for collecting and keeping a printing cylinder, designated with 9 in figure 4, wet with ink.
  • a film 2 In the exploded embodiment in figure 1, a film 2, a gasket 3, a discharge bush 4, an ink level frame 5, a bulkhead 6 for the quick ink discharge, a cam-type lever and a collecting drum 8 are also shown.
  • the film 2 will be put within the internal walls of the tray 1, as protection of such surface, since ink will be collected by the film 2 itself when printing.
  • Such film 2 is secured to the tray by means of the ink level frame 5 inside which ink is collected before being dragged towards the discharging area, outside the frame 5 and confined by the tray 1 itself; in such discharging area, the discharge bush 4 allows ink to be discharged in the drum 8 below; this latter one will afterwards be re-circulated by a pump when working and collected at the end by a suitable operator.
  • the discharge bush 4 is passed in a corresponding hole obtained on the base 1 b of the tray 1; since the film 2 is abutted also on the internal wall of the base 1b, a corresponding opening 2c is obtained therein in order to allow its insertion.
  • the gasket 3, inserted in the bush 4, is adapted to seal from possible ink leaking between couplings of the above members.
  • the wall 5a dividing the ink collecting area, inside the frame 5, and the discharging area outside, is equipped with a further removable bulkhead 6 to allow a quicker ink outflow at the end of the process.
  • the film 2 is freely placed inside the tray 1, remaining afterwards blocked due to the action of the ink level frame 5, inside the tray 1.
  • the film 2 could conveniently be secured and made directly integral with one or more internal tray 1 walls by using known means, such as, for example, snap-type buttons, hinges, tear-type bands, Velcro® or adhesive substances.
  • grease or oil can be used, that by the way make cleaning easier in case of ink leakages.
  • Figures 4 and 5 shows two variations of placement of the film 2 inserted inside the tray 1; in figure 4 the rear portion 2b of film 2 that goes out of the tray 1 is secured behind and/or below the doctor blade assembly, designated as 10, of the printing machine, in order to shield from splashes when printing.
  • the film 2 is discarded and replaced with a new one, and the tray 1 remains clean, thereby avoiding the washing process.
  • the film 2 is any polymeric material, for example polythene, but it is obvious that, without departing from the scope of the invention, any material that resists against ink and related solvents or diluents can be used for coating the tray 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Ink Jet (AREA)
  • Table Equipment (AREA)
  • Cleaning In Electrography (AREA)
  • Dot-Matrix Printers And Others (AREA)
EP06016489A 2005-08-10 2006-08-08 Farbwanne zum Einfärben und/oder Zurückgewinnen von Druckfarben in Rotationstiefdruckmaschinen Not-in-force EP1752288B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000040A ITPR20050040A1 (it) 2005-08-10 2005-08-10 Bacinella per inchiostrazione e/o raccolta dell'inchiostro in macchine da stampa rotative rotocalco.

Publications (3)

Publication Number Publication Date
EP1752288A2 true EP1752288A2 (de) 2007-02-14
EP1752288A3 EP1752288A3 (de) 2008-01-23
EP1752288B1 EP1752288B1 (de) 2009-03-11

Family

ID=37440647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06016489A Not-in-force EP1752288B1 (de) 2005-08-10 2006-08-08 Farbwanne zum Einfärben und/oder Zurückgewinnen von Druckfarben in Rotationstiefdruckmaschinen

Country Status (5)

Country Link
EP (1) EP1752288B1 (de)
AT (1) ATE424999T1 (de)
DE (1) DE602006005560D1 (de)
ES (1) ES2323595T3 (de)
IT (1) ITPR20050040A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648098A1 (de) * 1976-10-23 1978-05-03 Heidelberger Druckmasch Ag Farbkasten fuer offset- oder hochdruckmaschinen
DE19525849A1 (de) * 1995-07-15 1997-01-16 Heidelberger Druckmasch Ag Farbkasten für Offset- oder Hochdruckmaschinen
EP1043156A1 (de) * 1999-03-31 2000-10-11 Mitsubishi Heavy Industries, Ltd. Druckfarbenzuführvorrichtung für eine Druckmaschine.
DE10050657A1 (de) * 1999-11-08 2001-05-10 Heidelberger Druckmasch Ag Verfahren zur Regulierung des Niveaus einer Flüssigkeit in einer Wanne einer Druck- oder Lackmaschine und Vorrichtung zur Durchführung des Verfahrens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648098A1 (de) * 1976-10-23 1978-05-03 Heidelberger Druckmasch Ag Farbkasten fuer offset- oder hochdruckmaschinen
DE19525849A1 (de) * 1995-07-15 1997-01-16 Heidelberger Druckmasch Ag Farbkasten für Offset- oder Hochdruckmaschinen
EP1043156A1 (de) * 1999-03-31 2000-10-11 Mitsubishi Heavy Industries, Ltd. Druckfarbenzuführvorrichtung für eine Druckmaschine.
DE10050657A1 (de) * 1999-11-08 2001-05-10 Heidelberger Druckmasch Ag Verfahren zur Regulierung des Niveaus einer Flüssigkeit in einer Wanne einer Druck- oder Lackmaschine und Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
EP1752288A3 (de) 2008-01-23
EP1752288B1 (de) 2009-03-11
ES2323595T3 (es) 2009-07-21
ITPR20050040A1 (it) 2007-02-11
DE602006005560D1 (de) 2009-04-23
ATE424999T1 (de) 2009-03-15

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