WO2001087603A1 - A spray dampening apparatus - Google Patents

A spray dampening apparatus Download PDF

Info

Publication number
WO2001087603A1
WO2001087603A1 PCT/SE2001/001040 SE0101040W WO0187603A1 WO 2001087603 A1 WO2001087603 A1 WO 2001087603A1 SE 0101040 W SE0101040 W SE 0101040W WO 0187603 A1 WO0187603 A1 WO 0187603A1
Authority
WO
WIPO (PCT)
Prior art keywords
spray
printing press
press roller
dampening apparatus
air
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.)
Ceased
Application number
PCT/SE2001/001040
Other languages
English (en)
French (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.)
Baldwin Jimek AB
Original Assignee
Baldwin Jimek 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 Baldwin Jimek AB filed Critical Baldwin Jimek AB
Publication of WO2001087603A1 publication Critical patent/WO2001087603A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B41F7/30—Damping devices using spraying elements
    • 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
    • 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
    • B41P2235/10—Cleaning characterised by the methods or devices

Definitions

  • the present invention relates to a method and device for preventing clogging of spray nozzles and/or a screening plate of a spray dampening apparatus arranged at a printing press roller.
  • a spray dampening apparatus is arranged in the proximity of a printing press roller for spraying fountain solution thereon.
  • This fountain solution is needed for obtaining the intended printing function in the printing press, as is well known in the art. (Other liquids than fountain solution could alternatively be sprayed.)
  • the printing ink mist causes clogging of the spray nozzles of the spray dampening apparatus, so that their intended spray function gradually deteriorates and the spray pattern of the spray dampening apparatus is changed.
  • a screening plate is provided in a spray casing in front of the spray nozzles.
  • the screening plate is provided with openings for letting through to the printing press roller only a portion of the fountain solution sprayed by the spray nozzles. These screening plate openings may be clogged by the entering printing ink mist, so that the screening function of the screening plate is changed in a non-predictable way.
  • This clogging may according to the invention be prevented in that streams of clean air are caused to flow towards the printing press roller along the spray cones from the spray nozzles in order to break up approaching, dirty air streams.
  • a slitted air tube for emitting an air stream towards the printing press roller is arranged at each side of the spray nozzles.
  • a spray dampening apparatus 1 of a generally conventional design is mounted in the vicinity of a printing press roller 2. It comprises a spray beam 3 in a longitudinal spray casing 4.
  • Spray nozzles 5, preferably for spraying fountain solution, are arranged in the spray beam 3. They are preferably evenly distributed for obtaining an even spray pattern on the roller 2 from spray cones 6 emanating from the nozzles 5.
  • the spray casing 4 is generally closed except at its side facing the roller 2. As shown, the side walls of the spray casing 4 are curved in correspondence to the curvature of the roller 2, so that only a small circumferential gap appears between the roller 2 and the spray casing 4.
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Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
PCT/SE2001/001040 2000-05-17 2001-05-14 A spray dampening apparatus Ceased WO2001087603A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0001822A SE516747C2 (sv) 2000-05-17 2000-05-17 Sätt och anordning att hindra igensättning av spraymunstycken och/eller en avskärmningsplatta hos en sprayfuktanordning
SE0001822-6 2000-05-17

Publications (1)

Publication Number Publication Date
WO2001087603A1 true WO2001087603A1 (en) 2001-11-22

Family

ID=20279707

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2001/001040 Ceased WO2001087603A1 (en) 2000-05-17 2001-05-14 A spray dampening apparatus

Country Status (4)

Country Link
EP (1) EP1155824B1 (enExample)
DE (1) DE60131801T2 (enExample)
SE (1) SE516747C2 (enExample)
WO (1) WO2001087603A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003097358A1 (en) * 2002-05-17 2003-11-27 Baldwin Jimek Ab A method and device for keeping a number of spray nozzles in a printing press beam clean

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006014990B4 (de) * 2006-03-31 2008-08-07 Technotrans Ag Sprühfeuchtwerk für Druckmaschinen und Verfahren zur Reinigung der wenigstens einen Düse eines Sprühfeuchtwerks
DE102007013590A1 (de) 2007-03-21 2008-09-25 Technotrans Ag Verfahren und Vorrichtung zur Reinigung von Düsen an einem Sprühfeuchtwerk
DE102018209539A1 (de) * 2018-06-14 2019-04-04 Heidelberger Druckmaschinen Ag Befeuchtungsvorrichtung in einer Druckmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241656A (en) * 1978-11-17 1980-12-30 Smith R. P. M. Corporation Self-cleaning nozzle for lithographic printing dampeners
US4569484A (en) * 1984-08-31 1986-02-11 The United States Of America As Represented By The United States Department Of Energy Air blast type coal slurry fuel injector
US5040457A (en) * 1989-10-10 1991-08-20 Rockwell International Corporation Printing press dampener
US5299495A (en) * 1991-07-27 1994-04-05 Koenig & Bauer Aktiengesellschaft Cylinder moistening assembly
EP0607751A1 (en) * 1992-12-28 1994-07-27 Sakurai Graphic Systems Corporation An ink roller washing device for a printing machine
WO1997027052A2 (de) * 1996-01-24 1997-07-31 Koenig & Bauer-Albert Ag Sprühfeuchtwerk

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241656A (en) * 1978-11-17 1980-12-30 Smith R. P. M. Corporation Self-cleaning nozzle for lithographic printing dampeners
US4569484A (en) * 1984-08-31 1986-02-11 The United States Of America As Represented By The United States Department Of Energy Air blast type coal slurry fuel injector
US5040457A (en) * 1989-10-10 1991-08-20 Rockwell International Corporation Printing press dampener
US5299495A (en) * 1991-07-27 1994-04-05 Koenig & Bauer Aktiengesellschaft Cylinder moistening assembly
EP0607751A1 (en) * 1992-12-28 1994-07-27 Sakurai Graphic Systems Corporation An ink roller washing device for a printing machine
WO1997027052A2 (de) * 1996-01-24 1997-07-31 Koenig & Bauer-Albert Ag Sprühfeuchtwerk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003097358A1 (en) * 2002-05-17 2003-11-27 Baldwin Jimek Ab A method and device for keeping a number of spray nozzles in a printing press beam clean
CN100413685C (zh) * 2002-05-17 2008-08-27 鲍德温·伊梅克股份公司 保持印刷机喷嘴束多个喷嘴清洁的方法和装置
US7861651B2 (en) 2002-05-17 2011-01-04 Baldwin Jimek Ab Method and device for keeping a number of spray nozzles in a printing press beam clean

Also Published As

Publication number Publication date
SE516747C2 (sv) 2002-02-26
EP1155824A2 (en) 2001-11-21
EP1155824A3 (en) 2003-03-05
DE60131801T2 (de) 2009-01-29
SE0001822L (enExample) 2001-11-18
DE60131801D1 (de) 2008-01-24
SE0001822D0 (sv) 2000-05-17
EP1155824B1 (en) 2007-12-12

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