DE3108541A1 - Arrangement for applying damping medium in an offset printing machine - Google Patents

Arrangement for applying damping medium in an offset printing machine

Info

Publication number
DE3108541A1
DE3108541A1 DE19813108541 DE3108541A DE3108541A1 DE 3108541 A1 DE3108541 A1 DE 3108541A1 DE 19813108541 DE19813108541 DE 19813108541 DE 3108541 A DE3108541 A DE 3108541A DE 3108541 A1 DE3108541 A1 DE 3108541A1
Authority
DE
Germany
Prior art keywords
printing machine
offset printing
arrangement
damping medium
mist
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
DE19813108541
Other languages
German (de)
Inventor
Horst 1000 Berlin Deisting
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.)
Rotaprint GmbH
Original Assignee
Rotaprint GmbH
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 Rotaprint GmbH filed Critical Rotaprint GmbH
Priority to DE19813108541 priority Critical patent/DE3108541A1/en
Publication of DE3108541A1 publication Critical patent/DE3108541A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)

Abstract

The present invention relates to an arrangement for applying damping medium in an offset printing machine, the innovation being seen in the fact that, using an ultrasonic nebuliser, a mist of damping medium is produced which is directed with the aid of flexible tubes and/or nozzles and a fan directly onto the plate of the offset printing machine onto a rubber-elastic covered damping unit or directly onto the inking unit (hydrocolour system).

Description

Anordnung zur Feuchtmitteiauftragung Arrangement for application of dampening agent

bei einer Offset-Druckmaschine Die vorliegende Erfindung betrifft eine Anordnung zur Aufbringung von Feuchtmittel bei einer Offset-Druckmaschine. in an offset printing machine The present invention relates to an arrangement for applying dampening solution in an offset printing machine.

Die Anordnung zeichnet sich dadurch aus, daß ein an sich bekannter Flüssigkeits-Ultraschallze-rstäuber mit einer Nebelkammer und einem Gebläse zur Erzeugung eines Feuchtnebels eingesetzt wird. Solche Ultraschallzerstäuber werden als Raumluftbefeuchter von der Fa. Dr. Ing. Kronrad Burg, Geblergasse 123, A-1170 Wien 17, in den Handel gebracht. Solche Raumluftbefeuchter haben außerdem einen Vorratsbehälter oder auch einen getrennten Nachlauf. Um den von diesem Gerät erzeugten Feuchtnebel gezielt auf die richtigen Stellen einer Offset-Druckmaschinc aufbringen zu können, wird eine Schlauchverbindung mit einer Verteilerleiste eingesetzt. In überraschender Weise pflanzt sich der Feuchtnebel auch über eine längere Schlauchverbindung (z.B. 2 m) fort und tritt an einer mit Düsen versehenen Verteilerleiste aus, die sich über die gesamte Plattenbreite einer Offset-Druckmaschine erstreckt. Hierdurch ergibt sich ein äußerst gleichmäßiger Feuchtnebelfilm auf der Platte.The arrangement is characterized in that a known per se Ultrasonic liquid atomizer with a mist chamber and a blower for Generation of a damp mist is used. Such ultrasonic atomizers will be as a room humidifier from Dr. Ing.Kronrad Burg, Geblergasse 123, A-1170 Vienna 17, put on the market. Such room humidifiers also have one Reservoir or a separate overrun. To the generated by this device Apply moisture mist specifically to the right places on an offset printing machine a hose connection with a manifold is used. In Surprisingly, the humid mist also spreads over a longer hose connection (e.g. 2 m) and exits at a distributor strip provided with nozzles, which extends over the entire plate width of an offset printing machine. Through this the result is an extremely even film of moisture mist on the plate.

Der Feuchtnebel kann auch auf ein gummielastisch bezogenes Feuchtwerk oder direkt auf das Farbwerk (Hydro-Color-System) gerichtet werden.The damp mist can also be applied to a rubber-elastic dampening system or aimed directly at the inking unit (Hydro-Color-System).

Bei einer erfindungsgemäßen Ausführungsform einer DIN A 3 Druckmaschine wird weniger als 1 Liter Feuchtmittel pro Stunde bei 10 000 Bogen pro Stunde zerstäubt. Bei anderen Bogenformaten oder Maschinendrehzahlen ergeben sich ents rechend andere Werte. Die Tropfengröße ist derart, daß der Feuchtnebel in normaler Raumluft aufsteigt, ohne einen feuchten Niederschlag in der Umgebung der Austrittsstelle des feuchten Nebels auszubilden.In an embodiment according to the invention of a DIN A3 printing machine less than 1 liter of dampening solution per hour is atomized at 10,000 sheets per hour. With other sheet formats or machine speeds, different results arise Values. The droplet size is such that the damp mist rises in normal room air, without a moist precipitate in the vicinity of the exit point of the moist To train fog.

Die Schwingfrequenz des Ultraschallzerstäubers ist größer als 1 mHz, wobei sich eine Tropfengrdße von weniger als 1,5 gm ergibt. Der Feuchtnebel muß mindestens so fein sein, daß er durch gekrümmte Bohrlöcher mit Hilfe eines Luftstromes durchgeführt werden kann.The vibration frequency of the ultrasonic atomizer is greater than 1 mHz, resulting in a drop size of less than 1.5 gm. The damp fog must be at least so fine that it can be drilled through curved holes with the aid of an air stream can be carried out.

Claims (1)

P a t e n t a n 5 p r u c h Anordnung zum Aufbringen von Feuchtmittel bei einer Offset-Druckmaschine, dadurch gekennzeichnet, daß unter Anwendung eines Ultraschallzerstäubers ein Feuchtmittelnebel erzeuyt wird, welcher mit Hilfe von Schläuchen und/oder Düsen sowie einem Gebläse direkt auf die Platte der Offsct-Druckmaschine auf ein gummielastisch gezogenes Feuchtwerk oder direkt auf das Farbwerk (IIydro-Color-System) gerichtet wird. P a t e n t a n 5 p r u c h Arrangement for applying dampening solution in an offset printing machine, characterized in that using a Ultrasonic atomizer a dampening solution mist is generated, which with the help of Hoses and / or nozzles and a fan directly onto the plate of the offset printing machine on a rubber elastic dampening unit or directly on the inking unit (IIydro-Color-System) is judged.
DE19813108541 1981-03-06 1981-03-06 Arrangement for applying damping medium in an offset printing machine Ceased DE3108541A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813108541 DE3108541A1 (en) 1981-03-06 1981-03-06 Arrangement for applying damping medium in an offset printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813108541 DE3108541A1 (en) 1981-03-06 1981-03-06 Arrangement for applying damping medium in an offset printing machine

Publications (1)

Publication Number Publication Date
DE3108541A1 true DE3108541A1 (en) 1982-11-25

Family

ID=6126526

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813108541 Ceased DE3108541A1 (en) 1981-03-06 1981-03-06 Arrangement for applying damping medium in an offset printing machine

Country Status (1)

Country Link
DE (1) DE3108541A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811661A (en) * 1986-12-20 1989-03-14 Kazuo Maruta Dampening method and apparatus using an air nozzle and mist generator
WO1997026996A2 (en) * 1996-01-23 1997-07-31 Koenig & Bauer-Albert Ag Method and device for keeping clean ends of spray damping mechanism nozzles on a rotary printing press
EP2554382A1 (en) * 2011-08-05 2013-02-06 Palo Alto Research Center Incorporated Direct application of dampening fluid for a variable data lithographic apparatus
EP2554383A3 (en) * 2011-08-05 2013-10-30 Palo Alto Research Center Incorporated Method for direct application of dampening fluid for a variable data lithographic apparatus
US8991310B2 (en) 2011-04-27 2015-03-31 Palo Alto Research Center Incorporated System for direct application of dampening fluid for a variable data lithographic apparatus
US9643397B2 (en) 2010-10-29 2017-05-09 Palo Alto Research Center Incorporated Variable data lithography system for applying multi-component images and systems therefor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811661A (en) * 1986-12-20 1989-03-14 Kazuo Maruta Dampening method and apparatus using an air nozzle and mist generator
WO1997026996A2 (en) * 1996-01-23 1997-07-31 Koenig & Bauer-Albert Ag Method and device for keeping clean ends of spray damping mechanism nozzles on a rotary printing press
WO1997026996A3 (en) * 1996-01-23 1997-10-23 Koenig & Bauer Albert Ag Method and device for keeping clean ends of spray damping mechanism nozzles on a rotary printing press
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
US9643397B2 (en) 2010-10-29 2017-05-09 Palo Alto Research Center Incorporated Variable data lithography system for applying multi-component images and systems therefor
US8991310B2 (en) 2011-04-27 2015-03-31 Palo Alto Research Center Incorporated System for direct application of dampening fluid for a variable data lithographic apparatus
EP2554382A1 (en) * 2011-08-05 2013-02-06 Palo Alto Research Center Incorporated Direct application of dampening fluid for a variable data lithographic apparatus
EP2554383A3 (en) * 2011-08-05 2013-10-30 Palo Alto Research Center Incorporated Method for direct application of dampening fluid for a variable data lithographic apparatus

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
8110 Request for examination paragraph 44
8131 Rejection