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EP0621134A1 - Procédé et dispositif pour améliorer le fonctionnement d'un rail de pulvérisation dans une machine d'impression - Google Patents

Procédé et dispositif pour améliorer le fonctionnement d'un rail de pulvérisation dans une machine d'impression Download PDF

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Publication number
EP0621134A1
EP0621134A1 EP94106158A EP94106158A EP0621134A1 EP 0621134 A1 EP0621134 A1 EP 0621134A1 EP 94106158 A EP94106158 A EP 94106158A EP 94106158 A EP94106158 A EP 94106158A EP 0621134 A1 EP0621134 A1 EP 0621134A1
Authority
EP
European Patent Office
Prior art keywords
spray bar
nozzles
spray
cover
printing press
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
EP94106158A
Other languages
German (de)
English (en)
Other versions
EP0621134B1 (fr
Inventor
Birger Hansson
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.)
Jimek International AB
Original Assignee
Jimek International AB
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 Jimek International AB filed Critical Jimek International AB
Publication of EP0621134A1 publication Critical patent/EP0621134A1/fr
Application granted granted Critical
Publication of EP0621134B1 publication Critical patent/EP0621134B1/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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/04—Cleaning arrangements or devices for inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Definitions

  • This invention relates to a method of improving the function of a spray bar, intended for spraying a fluid on a roller in a printing press. It also relates to devices for carrying out this method.
  • the main object of the invention is to improve the function of a spray bar for spraying an ink removing solvent on an inking roller, but the teachings of the invention is equally applicable to other spray bars.
  • a spray bar may be arranged adjacent to the uppermost roller or drum of an inking device or inking train in a printing press.
  • an inking device comprises a number of rollers and/or drums for the purpose of conveying printing ink from a supply thereof to the printing cylinders, normally in a substantially vertical direction.
  • the inking device has to be cleaned from ink, for example when a new colour is to be employed in the printing process.
  • a cleaning may be performed in that ink removing solvent is sprayed on the uppermost roller or drum in the inking device by the spray bar provided with nozzles for that purpose.
  • the drums and rollers are rotated but are disconnected from the ink supply and the printing cylinders, and the ink removed by the solvent can be scraped off by cleaning blades and collected in trays.
  • the spray bar is mounted adjacent a roller, which during the printing process rotates at a considerable speed with ink thereon, it is subjected to ink mist and contaminants, which may disturb the function of the nozzles, when they later shall spray the washing or ink removing solvent.
  • the object of the invention is to remove the drawback with clogged nozzles in the spray bar.
  • a preferred device for carrying out this shielding off is characterized in that a cover provided with openings corresponding to the nozzles on the spray bar is slidably arranged on the spray bar over the nozzles so as to be movable between a first position, in which the nozzles can spray through the openings, and a second position, in which the nozzles are covered.
  • the cover may be connected to a pneumatic cylinder for its movement.
  • the spray bar may be arranged in a casing having a pivotable lid movable between a first open position, in which the nozzles can spray, and a second closed position.
  • a box with open top may be arranged below the spray bar, which is rotatable from its operative position to a position with the nozzles protected in the box.
  • Figs 1a and 1b in top views of a spray bar with a cover illustrate the principle of a preferred embodiment
  • Figs 2a, 2b and 2c are side views of a spray bar with a cover according to the preferred embodiment in three operating positions
  • Fig 3 is a view, partly in section, along the line III-III in Fig 2a
  • Fig 4a and 4b are side views, partly in section of another embodiment of the invention in two positions
  • Figs 5a and 5b are side views, partly in section, of still another embodiment of the invention in two positions.
  • a spray bar 1 with spray nozzles 2 is shown in a top view in Figs 1a and 1b.
  • Such a spray bar 1 is to be mounted adjacent an inking roller in a printing press for the purpose of spraying ink removing solvent on the roller.
  • a cover 3 is slidably arranged on the spray bar 1 above the spray nozzles 2 and is provided with openings 4 corresponding to the nozzles 2.
  • the cover 3 is shown in a position relative to the spray bar 1 that enables the nozzles to spray its solvent through the openings 4.
  • Figs 2a-c a practical arrangement with a spray bar 1 mounted in a printing press is shown in side views. Only Fig 2a is provided with reference numerals for the sake of clarity.
  • the spray bar 1 is mounted by means of a left attachment 5 and a right attachment 6 in a printing press frame 7.
  • the spray bar 1 is connected to a conduit in the right attachment 6 for pressurized solvent by means of a quick-coupling 8.
  • the right attachment 6 also contains a pneumatic cylinder, whose piston rod 9 is connected to a bracket 10 on the cover 3, which accordingly can be displaced in the way described above with reference to Figs 1a and 1b.
  • the positions shown in Figs 1a and 1b correspond to those according to Fig 2a and 2b, respectively.
  • connection between the piston rod 9 and the bracket 10 may preferably be performed by means of a spring-biassed connection member 11, which may be pivoted from the position shown in Figs 2a and 2b, in which it is transverse to the piston rod 9 and connects the latter to the bracket 10, to the position shown in Fig 2c, in which it is coaxial with the piston rod 9 and can slide through the hole in the bracket 10 for disconnection of the cover 3 and thus the whole spray bar 1.
  • a spring-biassed connection member 11 which may be pivoted from the position shown in Figs 2a and 2b, in which it is transverse to the piston rod 9 and connects the latter to the bracket 10, to the position shown in Fig 2c, in which it is coaxial with the piston rod 9 and can slide through the hole in the bracket 10 for disconnection of the cover 3 and thus the whole spray bar 1.
  • Fig 2c illustrates how the cover 3 is disconnected from the piston rod 9 and the quick-coupling 8 decoupled by sliding the spray bar 1 to the left in the left attachment 5 against a compression spring (not shown) so that the spray bar 1 can be removed, for example for cleaning.
  • Fig 3 is a view along the line III-III in Fig 2a.
  • a nozzle 2 is arranged in the spray bar 1, whose lower part or part to the right in Fig 3 is a tube for conveying the solvent to the nozzles.
  • the cover 3 with its openings 4 is slidably arranged on the spray bar 1.
  • the cover bracket 10 is connected to the piston rod 9, extending from the right attachment 6, by means of the connection member 11.
  • Figs 4a and 4b an alternative embodiment is shown in section.
  • the spray bar 1 with its nozzles 2 is fixedly mounted in a casing 12 by means of brackets 13.
  • a lid 14 is pivotably connected to the casing 12 by means of a hinge 15.
  • the lid 14 may be pivoted between an open position shown in Fig 4a and a closed position shown in Fig 4b by means of for example a pneumatic cylinder 16.
  • FIGs 5a and 5b A slightly different embodiment is shown in Figs 5a and 5b.
  • the spray bar 1 with its nozzles 2 is rotatably mounted, whereas a shielding means in the form of a box 17 with open top is fixed. From its operative position shown in Fig 5a the spray bar 1 may be rotated to the position shown in Fig 5b, where the nozzles 2 are protected in the box 17.

Landscapes

  • Rotary Presses (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP94106158A 1993-04-23 1994-04-21 Dispositif pour améliorer le fonctionnement d'un rail de pulvérisation dans une machine d'impression Expired - Lifetime EP0621134B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301360 1993-04-23
SE9301360A SE507913C2 (sv) 1993-04-23 1993-04-23 Sätt och anordning för att förbättra funktionen hos en spraybalk i en tryckpress

Publications (2)

Publication Number Publication Date
EP0621134A1 true EP0621134A1 (fr) 1994-10-26
EP0621134B1 EP0621134B1 (fr) 1997-11-12

Family

ID=20389682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94106158A Expired - Lifetime EP0621134B1 (fr) 1993-04-23 1994-04-21 Dispositif pour améliorer le fonctionnement d'un rail de pulvérisation dans une machine d'impression

Country Status (3)

Country Link
EP (1) EP0621134B1 (fr)
DE (1) DE69406707T2 (fr)
SE (1) SE507913C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026996A3 (fr) * 1996-01-23 1997-10-23 Koenig & Bauer Albert Ag Procede et dispositif pour maintenir propres des nez de buses d'un dispositif de mouillage par pulverisation d'une rotative
DE10213109A1 (de) * 2002-03-23 2003-10-09 Baldwin Germany Gmbh Druckmaschinen-Sprühvorrichtung
WO2005000584A1 (fr) * 2003-06-30 2005-01-06 Baldwin Jimek Ab Buse de pulverisation
ITMI20110277A1 (it) * 2011-02-24 2012-08-25 Mec Bolondi Ivano Off Dispositivo di lavaggio ad ugelli con schermatura

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897726A (en) * 1971-11-24 1975-08-05 Heidelberger Druckmasch Ag Washing device for a blanket cylinder of an offset printing press

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897726A (en) * 1971-11-24 1975-08-05 Heidelberger Druckmasch Ag Washing device for a blanket cylinder of an offset printing press

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026996A3 (fr) * 1996-01-23 1997-10-23 Koenig & Bauer Albert Ag Procede et dispositif pour maintenir propres des nez de buses d'un dispositif de mouillage par pulverisation d'une rotative
US6067908A (en) * 1996-01-23 2000-05-30 Koenig & Bauer-Albert Aktiengesellschaft Method and device for keeping clean ends of spray damping mechanism nozzles on rotary printing press
DE10213109A1 (de) * 2002-03-23 2003-10-09 Baldwin Germany Gmbh Druckmaschinen-Sprühvorrichtung
DE10213109B4 (de) * 2002-03-23 2005-02-17 Baldwin Germany Gmbh Druckmaschinen-Sprühvorrichtung
WO2005000584A1 (fr) * 2003-06-30 2005-01-06 Baldwin Jimek Ab Buse de pulverisation
ITMI20110277A1 (it) * 2011-02-24 2012-08-25 Mec Bolondi Ivano Off Dispositivo di lavaggio ad ugelli con schermatura

Also Published As

Publication number Publication date
SE9301360D0 (sv) 1993-04-23
EP0621134B1 (fr) 1997-11-12
DE69406707T2 (de) 1998-03-12
SE507913C2 (sv) 1998-07-27
DE69406707D1 (de) 1997-12-18
SE9301360L (sv) 1994-10-24

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