EP0180541A1 - Procédé et dispositif de nettoyage d'une forme d'impression - Google Patents

Procédé et dispositif de nettoyage d'une forme d'impression Download PDF

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Publication number
EP0180541A1
EP0180541A1 EP85810469A EP85810469A EP0180541A1 EP 0180541 A1 EP0180541 A1 EP 0180541A1 EP 85810469 A EP85810469 A EP 85810469A EP 85810469 A EP85810469 A EP 85810469A EP 0180541 A1 EP0180541 A1 EP 0180541A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
printing form
cleaning
water
printing
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
EP85810469A
Other languages
German (de)
English (en)
Other versions
EP0180541B1 (fr
Inventor
Hanspeter Schneebeli
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.)
H Schneebeli & Coag
Original Assignee
H Schneebeli & Coag
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 H Schneebeli & Coag filed Critical H Schneebeli & Coag
Priority to AT85810469T priority Critical patent/ATE47690T1/de
Publication of EP0180541A1 publication Critical patent/EP0180541A1/fr
Application granted granted Critical
Publication of EP0180541B1 publication Critical patent/EP0180541B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/001—Devices for cleaning parts removed from the printing machines
    • 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
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/30—Recovering used solvents or residues
    • B41P2235/31—Recovering used solvents or residues by filtering

Definitions

  • Printing forms for example printing cylinders, are conventionally cleaned with solvents by spraying the printing form with the solvent in a cleaning booth over a perforated tube.
  • the ink residues on the printing form are at least partially dissolved in the solvent.
  • the dissolved color residues accumulate in the solvent, so that it has to be replaced relatively often.
  • the contaminated solvent is difficult to remove in an environmentally friendly manner. It is also very expensive to use the solvent in a closed circuit, because the dissolved ink residues chemically bad g again from the solvent e-separates can be.
  • contact with the solvent and its vapors endangers the operating personnel.
  • a method and a device according to the preamble of claims 1 and 3 are known from FR-A 1 249 140:
  • a flat printing form is attached to a pivotable table and pivoted into a vertical position.
  • a solvent is sprayed onto the printing form via the row of spray nozzles.
  • the color residues are solved.
  • the printing plate is then rinsed with fresh water through the second row of spray nozzles.
  • a cleaning device for dampening rollers is known from FR-A 1 012 324.
  • a solvent is sprayed over a horizontal tube with a series of openings onto a dampening roller which is rotatably mounted and driven underneath. This removes the ink residues on the dampening roller and throws them off.
  • a device for cleaning screen printing screens is known.
  • the screen to be cleaned is clamped on a frame in a chamber.
  • Below the sieve are arranged two pipes, each rotatable about their axis, each with a row of spray nozzles.
  • the screen is sprayed with a solvent through these nozzles.
  • the backflowing solvent is recycled through a filter and a pump.
  • the solvent vapors are extracted.
  • a similar device for cleaning screen printing screens with which water-soluble inks have been printed is out known from US-A 3,656,493.
  • a slide is passed over the sieve in a two-dimensional pattern.
  • the slide carries a nozzle with which the screen is sprayed with a steam or water jet.
  • the feed pressure of the nozzle is significantly below 20 bar, otherwise the sieve would be torn apart.
  • This device is only suitable for screens that have water-soluble color residues.
  • FR-A 2 288 616 other solvents would have to be used for water-insoluble paints.
  • the invention has for its object to eliminate the disadvantages of the known methods and systems for cleaning a printing form by means of a liquid.
  • the filter 1 comprises a cleaning cabin 1, in which a pressure cylinder 2 is cleaned with a high-pressure water jet.
  • the water 10 is drawn in from a container 8 via a suction line 9 by a high-pressure pump 3 and supplied to the nozzle in the cabin 1 via a high-pressure line 4 at a pressure between approximately 100 and 500 bar.
  • a drain line 5 is connected to the cabin 1 and feeds the contaminated water to a filter system 7 via a distributor screen 6.
  • the filter system 7 comprises an endless screen 21 stretched over two deflecting rollers 22, 23, which carries a disposable paper filter belt 25. One of the rollers 22, 23 is driven by a motor.
  • the filter belt 25 is drawn off from a supply roll 20, reaches the screen 21 via a deflection roller 24 and falls into a container 26 at the other end.
  • the water cleaned by the filter system 7 drips back into the water container 8.
  • a return pump 16 is additionally arranged in the drain line 5, which returns the contaminated water to the distributor screen 6 via lines 17, 18.
  • Fig. 2 shows a section through the cleaning cabin 1, which has a trough-shaped lower part 1b and a closable cover 1a.
  • the pressure cylinder 2 carries the inner rings 30 of rolling bearings on its journal 31.
  • the rings 30 are mounted on rollers 33, 35.
  • the roller 35 can be driven by a motor 37 via a shaft 36.
  • the cylinder 2 is rotated slowly.
  • a high-pressure water jet splashes out of a nozzle 12 against the cylinder surface and removes paint residues adhering to the printing cylinder through its impulse.
  • the roller 33 can be axially displaceable relative to its bearing 34 in order to be able to accommodate printing cylinders 2 of different lengths.
  • the nozzle 12 is arranged in a nozzle holder 40 which is fastened on a slide 50 which can be displaced along a C profile rail.
  • the longitudinal movement of the carriage 50 is controlled by an endless chain 57 attached to the carriage 50 and guided via deflection wheels 58, 59.
  • the one deflection wheel 59 is driven by a reversible motor 60.
  • the water is supplied to the nozzle 12 via a high-pressure hose 41 connected to the high-pressure line 4 and bores 42, 43.
  • a threaded spindle can also be provided, which engages in a nut attached to the slide 50.
  • the height of the rail 51 can be adjusted to adjust the distance between the nozzle 12 and the surface of the printing cylinder 2.
  • the rail 51 is fastened to swivel arms 52 which are pivotably mounted at one end by means of a bearing 53. Their swivel position is set by a cylinder 54 by means of its piston rod 55 via control lines 56.
  • a fixed rail can also be provided.
  • a vertical guide is provided on the slide 50, through which the height of the nozzle holder 40 is guided.
  • the vertical position of the nozzle holder can e.g. be adjusted by a gear meshing with a rack.
  • the nozzle holder 40 is pivotably mounted on the carriage 50.
  • the slide 50 has vertical flanges 48, in which the cylindrical nozzle holder 40 is mounted.
  • the nozzle 12 is arranged in a radial attachment 44.
  • a radial arm 47 is connected to the nozzle holder 40 and is articulated on the piston rod of a cylinder 45.
  • the cylinder 45 is controlled via control lines 46.
  • both the distance of the nozzle 12 from the surface of the cylinder 2 and the pivoting angle of the nozzle 12 can be optimally adapted to the contour of the printing cylinder during the displacement of the slide 50.
  • nozzle movements can be preprogrammed so that the entire cleaning process runs automatically.
  • sensors in the cabin which scan the contour of the pressure cylinder and accordingly control the movements of the nozzle.
  • FIG. 4 a rotating nozzle is shown in FIG. 4.
  • the nozzle holder 62 is fastened on a pin 61 of the slide 50 ′ so that it can rotate about a vertical axis.
  • the holes 63, 64 communicating with the high-pressure hose 41 are connected to an annular groove 65 in the nozzle holder 62.
  • the axes of the nozzles 12 connected to the annular groove 65 are arranged skew to the axis of the pin 61, so that the recoil of the water jet emerging from the nozzles 12 exerts a torque on the nozzle holder 62 and rotates it rapidly.
  • an anti-corrosion agent can be added to the water in the circuit.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP85810469A 1984-10-31 1985-10-14 Procédé et dispositif de nettoyage d'une forme d'impression Expired EP0180541B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85810469T ATE47690T1 (de) 1984-10-31 1985-10-14 Verfahren und anlage zum reinigen einer druckform.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH524184 1984-10-31
CH5241/84 1984-10-31

Publications (2)

Publication Number Publication Date
EP0180541A1 true EP0180541A1 (fr) 1986-05-07
EP0180541B1 EP0180541B1 (fr) 1989-11-02

Family

ID=4290301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810469A Expired EP0180541B1 (fr) 1984-10-31 1985-10-14 Procédé et dispositif de nettoyage d'une forme d'impression

Country Status (3)

Country Link
EP (1) EP0180541B1 (fr)
AT (1) ATE47690T1 (fr)
DE (1) DE3574000D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118944A1 (de) * 1991-06-08 1992-12-10 Ind Siebdruck Systeme Neckarwe Reinigungsvorrichtung fuer druckmasken
DE4224511A1 (de) * 1992-07-24 1994-01-27 Albert Rose Zweigniederlassung Verfahren zum Entfernen der Schablonenbeschichtung auf Siebdruckformen sowie Vorrichtung zur Durchführung dieses Verfahrens
WO1995025636A1 (fr) * 1994-03-24 1995-09-28 Win Manufacturing Pty. Ltd. Procede et appareil de nettoyage de rouleaux
DE19845367A1 (de) * 1998-10-02 2000-04-06 Gsb Wahl Gmbh Vorrichtung und Verfahren zum Reinigen von Teilen von Druckmaschinen
EP1038674A1 (fr) * 1999-02-26 2000-09-27 Alfred M. Petersen Dispositif de nettoyage à jet pour machines à imprimer
EP1253014A2 (fr) * 2001-04-27 2002-10-30 Baldwin-Japan Ltd. Unité de brossage pour nettoyer un cylindre
EP1342574A3 (fr) * 2002-03-05 2004-01-07 Technotrans AG Dispositif de filtrage pour de circuit de liquide de mouillage d'une machine d'impression

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB326588A (en) * 1929-01-01 1930-03-20 Hermann Hahn Improvements in apparatus for cleaning metal articles
FR1012324A (fr) * 1950-02-10 1952-07-08 Traitement Interne Des Chaudie Machine pour le nettoyage des rouleaux de machines d'impression
FR1146383A (fr) * 1956-03-29 1957-11-12 Filtre
FR1249140A (fr) * 1960-02-25 1960-11-14 Machine pour le nettoyage et le séchage de formes d'imprimerie
US3656493A (en) * 1969-09-11 1972-04-18 Black James Screen washing apparatus
FR2288616A1 (fr) * 1974-10-21 1976-05-21 Tiflex Ets Appareil de lavage pour ecrans de serigraphie
FR2293252A1 (fr) * 1974-12-02 1976-07-02 Benhaim Albert Buse engendrant un jet a ecoulement en regime laminaire a tres haute vitesse a partir d'un fluide sous tres haute pression, plus specialement pour nettoyer une surface
GB2003840A (en) * 1977-09-10 1979-03-21 Woma Maasberg Co Gmbh W A device for cleaning two- and three- dimensional objects such as plastics containers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB326588A (en) * 1929-01-01 1930-03-20 Hermann Hahn Improvements in apparatus for cleaning metal articles
FR1012324A (fr) * 1950-02-10 1952-07-08 Traitement Interne Des Chaudie Machine pour le nettoyage des rouleaux de machines d'impression
FR1146383A (fr) * 1956-03-29 1957-11-12 Filtre
FR1249140A (fr) * 1960-02-25 1960-11-14 Machine pour le nettoyage et le séchage de formes d'imprimerie
US3656493A (en) * 1969-09-11 1972-04-18 Black James Screen washing apparatus
FR2288616A1 (fr) * 1974-10-21 1976-05-21 Tiflex Ets Appareil de lavage pour ecrans de serigraphie
FR2293252A1 (fr) * 1974-12-02 1976-07-02 Benhaim Albert Buse engendrant un jet a ecoulement en regime laminaire a tres haute vitesse a partir d'un fluide sous tres haute pression, plus specialement pour nettoyer une surface
GB2003840A (en) * 1977-09-10 1979-03-21 Woma Maasberg Co Gmbh W A device for cleaning two- and three- dimensional objects such as plastics containers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118944A1 (de) * 1991-06-08 1992-12-10 Ind Siebdruck Systeme Neckarwe Reinigungsvorrichtung fuer druckmasken
DE4224511A1 (de) * 1992-07-24 1994-01-27 Albert Rose Zweigniederlassung Verfahren zum Entfernen der Schablonenbeschichtung auf Siebdruckformen sowie Vorrichtung zur Durchführung dieses Verfahrens
WO1995025636A1 (fr) * 1994-03-24 1995-09-28 Win Manufacturing Pty. Ltd. Procede et appareil de nettoyage de rouleaux
GB2302064A (en) * 1994-03-24 1997-01-08 Win Mfg Pty Ltd Roller cleaning method means
GB2302064B (en) * 1994-03-24 1997-12-03 Win Mfg Pty Ltd Roller cleaning method means
DE19845367A1 (de) * 1998-10-02 2000-04-06 Gsb Wahl Gmbh Vorrichtung und Verfahren zum Reinigen von Teilen von Druckmaschinen
DE19845367C2 (de) * 1998-10-02 2002-12-19 Gsb Wahl Gmbh Verfahren und Vorrichtung zum Reinigen von Teilen von Druckmaschinen
EP1038674A1 (fr) * 1999-02-26 2000-09-27 Alfred M. Petersen Dispositif de nettoyage à jet pour machines à imprimer
EP1253014A2 (fr) * 2001-04-27 2002-10-30 Baldwin-Japan Ltd. Unité de brossage pour nettoyer un cylindre
EP1253014A3 (fr) * 2001-04-27 2003-12-10 Baldwin-Japan Ltd. Unité de brossage pour nettoyer un cylindre
EP1342574A3 (fr) * 2002-03-05 2004-01-07 Technotrans AG Dispositif de filtrage pour de circuit de liquide de mouillage d'une machine d'impression

Also Published As

Publication number Publication date
EP0180541B1 (fr) 1989-11-02
DE3574000D1 (en) 1989-12-07
ATE47690T1 (de) 1989-11-15

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