EP1279500B1 - Procédé et dispositif de dosage d'un produit liquide dans une machine de traitement - Google Patents

Procédé et dispositif de dosage d'un produit liquide dans une machine de traitement Download PDF

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Publication number
EP1279500B1
EP1279500B1 EP02015294A EP02015294A EP1279500B1 EP 1279500 B1 EP1279500 B1 EP 1279500B1 EP 02015294 A EP02015294 A EP 02015294A EP 02015294 A EP02015294 A EP 02015294A EP 1279500 B1 EP1279500 B1 EP 1279500B1
Authority
EP
European Patent Office
Prior art keywords
lubricant
ink chamber
form roller
chamber blade
doctor blade
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.)
Revoked
Application number
EP02015294A
Other languages
German (de)
English (en)
Other versions
EP1279500A3 (fr
EP1279500A2 (fr
Inventor
Jürgen Schölzig
Roger Hahn
Reinhold Dipl.-Ing. Guba
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.)
Manroland Sheetfed GmbH
Original Assignee
Manroland AG
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
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Application filed by Manroland AG filed Critical Manroland AG
Publication of EP1279500A2 publication Critical patent/EP1279500A2/fr
Publication of EP1279500A3 publication Critical patent/EP1279500A3/fr
Application granted granted Critical
Publication of EP1279500B1 publication Critical patent/EP1279500B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers

Definitions

  • the invention relates to a method and a device for dosing a liquid medium in a rotary printing press or a varnishing machine, according to the preambles of the independent claims.
  • a metering device of this kind is made EP 0 071 180 A1 known.
  • the metering device consists of a chambered doctor blade, essentially formed by a housing with side walls and doctor blades arranged on the housing, a first doctor blade being arranged as a work doctor blade and a second doctor blade as a closing doctor blade.
  • the metering device further includes an applicator roller on which the doctor system is supported, so that with the housing a chamber is enclosed. In the chamber, a liquid medium to be metered is fed by means of feed and excess medium removed by means of return line.
  • a metering system is known as a doctor blade system, that in the region of the end faces laterally arranged and the housing chamber closing sealing elements (side seals) has.
  • the sealing elements are adapted to the curvature of the associated application roller and consist of elastic or elastomeric material.
  • each lubricant bag is to supply with a lubricating fluid provided with a supply line and a return line.
  • Out DE 197 29 977 A1 is an offset printing unit for painting substrates known.
  • the metering device is formed by a chamber doctor blade system and an application roller, wherein the chamber doctor blade system has side seals.
  • the applicator roller is in contact with a plate cylinder carrying a printing / lacquer form, and the plate cylinder is associated with a blanket cylinder adjacent thereto.
  • WO-A-99/25555 there is known a method of dosing a liquid medium in a processing machine having an applicator roll and associated chamber doctor blade system.
  • the chambered doctor blade system comprises a first and a second squeegee blade and end seals disposed on the side.
  • a lubricant supply is arranged in front of the seals of the chambered doctor blade system.
  • an ink fountain in the form of a chamber doctor blade system, wherein the chamber doctor blade system has a first and a second doctor blade and end seals arranged. Within the chamber housing several washing nozzles are arranged. Detergent can be sprayed into the chamber housing and onto the adjacent application roller by means of the washing nozzles. Furthermore, the chamber doctor blade system comprises a lubricant supply for the ends arranged seals.
  • the invention has for its object to provide a method and an apparatus of the type mentioned, which avoid the disadvantages mentioned, which allow a low-wear dosing in the range of seals and doctor blades of a dosing roller containing a dispensing roll and reduce the friction moments noticeably.
  • a first advantage of the invention is based on the fact that the friction moments on the seals (sealing systems) and the doctor blades, in particular in the area of the doctor blades adjacent to the sealing systems, are reduced by the use of a liquid lubricant.
  • a further advantage is that the drying or crystallization of the liquid medium to be processed on the doctor blades and sealing systems is noticeably avoidable. This also improves the dosing quality of the liquid medium to be processed.
  • Another advantage is that the heat development in the contact areas of the doctor blade system with the associated applicator roller is low. This is particularly at higher ambient temperatures, due to, for example, the doctor blade system adjacent drying equipment and / or at high processing conditions, advantageous.
  • the metering system as a result of reducible wear on the sealing systems and Squeegees achieved longer life.
  • the machine service life for example due to cleaning and service activities, reduced.
  • FIG. 1 there is a series-produced sheet-fed rotary printing press from several printing units 1, formed from plate cylinder 8 and blanket cylinder 9 and at least one inking unit.
  • a first coating unit 2 for example, two drying units 4 and at least a second coating unit 3.
  • the second coating unit 3 is followed by a boom 5, which has at least one endless circulating conveyor system 7 and a delivery stack 6.
  • the coating units 2, 3 each have a forme cylinder 12 and one metering device 13 each.
  • the sheet transport is realized by means of sheet guiding cylinder, especially transfer drums 10 and impression cylinder 11.
  • Each metering device 13 has an applicator roller 15, in particular an anilox roller which is coupled to a chambered doctor blade system 16.
  • the chambered doctor blade system 16 has an axially parallel to the applicator roller 15 extending housing for receiving a liquid medium to be processed, such as paint, and further consists of a first doctor blade 24 (closing squeegee) and a second doctor blade 23 (working doctor) and each of the thus formed housing chamber laterally limiting sealing systems 25.
  • the doctor blades 23, 24 are supported on the roll shell of the applicator roll 15 and the chamber doctor blade system 16 is coupled to at least one feed and one return line (circulating line system) for the liquid medium to be processed, for example dispersion varnish.
  • the chamber doctor blade system 16 has sealing systems 25 which delimit the chamber housing and are in contact with the application roller 15. These contact points represent lubrication points, each of which is assigned a lubricant dispenser 17, preferably with the outlet opening directed to the applicator roller 15, adjacent.
  • At least one lubricant dispenser 17 is arranged, which is always associated with a sealing system 25 (lubrication point) of the chamber doctor blade system 16 adjacent.
  • a sealing system 25 lubrication point
  • the chamber doctor blade system 16 is formed at both ends with two sealing systems 25, so that each one lubricator 17 is associated with a sealing system 25 adjacent.
  • each sealing system arranged at the end 25 and the seals arranged inside the housing chamber are each assigned a lubricant dispenser 17 adjacent thereto.
  • the lubricators 17 are geared with a frame-fixed, axially parallel to the applicator roller 15 arranged traverse 27 as a sliding joint. The lubricators 17 are displaceable in the axial direction of movement 26 along the traverse 27.
  • the lubricators 17 are additionally pivotable about the traverse 27, so that the inclination angle of each lubricator 17 to the applicator roller 15 and the chamber doctor blade system 16 is adjustable.
  • the lubricators 17 can also be arranged and pivoted on a machine protection (inner side).
  • the lubricator 17 of the liquid lubricant such as water, continuously deliverable in very small quantities or at intervals on the roll shell of the applicator roll 15 in the region of the contact points of the sealing systems 25.
  • Each lubricator 17 is coupled to a line system 18, which each has a switching valve 19.
  • Each switching valve 19 is connected to a controller 20.
  • the switching valve 19 is a pulse solenoid valve, which is operable with an electrical pulse of a few milliseconds ( ⁇ 50 ms).
  • a controller 20 is preferably a machine control, alternatively, as well as a pulse generator can be used.
  • each switching valve 19 is preceded by a feed train 21 and the feed strands 21 have a central connection 22 for the liquid lubricant.
  • each lubricator 17 is connected by means of line system 18 with at least one time-controllable pump (instead of the switching valve 19).
  • a pump controls all lubricators 17 or alternatively, each lubricator 17 can be executed by means of line system 18, each with a time-controllable pump.
  • the pump is connected to a controller 20.
  • the controller 20 is preferably a machine controller or a pulse generator.
  • the pump or pumps is preceded by at least one Zu Industriesstrang 21 with a terminal 22.
  • the port 22 is connectable to a liquid lubricant conduit system. At this connection 22 of the liquid lubricant, such as water, can be fed. In a further embodiment, the port 22 is coupled to a fine filter and / or a pressure regulator and / or a lubricant circulation shut-off.
  • the liquid lubricant should be selected according to the liquid medium to be processed.
  • a fluid compatible with the medium to be processed can be used. If, for example, the medium to be processed is an aqueous dispersion varnish, it is preferable to use water or a fluid compatible with the medium to be processed as the liquid lubricant.
  • the usable liquid lubricant serves to reduce the friction moments at the contact points of doctor blades 23, 24 and the sealing systems 25 with the applicator roller 15 and is simultaneously compatible with the liquid medium to be processed.
  • the method and the device is not on the described Example limited in a coating unit 2.3. Rather, the method and the device can also be used in an offset printing unit 1.
  • This is analogous to DE 197 29 977 A1 the metering device 13, formed from application roller 15 and chamber doctor blade system 16, the plate cylinder 8 assigned.
  • the inking unit of the offset printing unit 1 is inactive and the preferably screened applicator roller 15 is in contact with the plate cylinder 8.
  • the lubricators 17 are arranged in the direction of rotation of the applicator roller 15 before or after the chambered doctor blade system 16, the sealing systems 25.
  • the liquid medium to be processed is then transferred from the application roller 15 to the plate cylinder 8 and from there to the blanket cylinder 9.
  • the mode of action is as follows: In printing / coating operation, the lubricators 17 are assigned to the respective sealing systems 25 adjacent. Via port 22, a liquid lubricant is fed via supply lines 21 to the switching valves 19 or pumps, whereby the switching valves 19 or the pumps supply the liquid lubricant at intervals (intermittently) to the lubricators 17 via the piping systems 18 via the piping systems 18.
  • the liquid lubricant is expelled in the form of drops or as a spray jet and impinges on the rotating applicator roll 15, preferably in the direction of rotation of the applicator roll in front of the first doctor blade 24.
  • the liquid medium, in particular lacquer, guided by the preferably screened application roller 15 is slightly diluted in the region of the sealing systems 25. However, this does not affect the liquid medium or the dosing or coating quality. Rather, the reduced Liquid lubricant the building and curing of the liquid medium in the region of the sealing systems 25 and the doctor blades 23, 24th
  • the functionality of the contact points on the sealing systems 25 and the doctor blades 23, 24 is ensured in conjunction with the application roller 15 and reduces wear. Likewise, cooling of the abovementioned contact points is achievable, which is advantageous in particular in adjacent, activated drying devices 4.
  • the method for metering a liquid medium in a processing machine comprising a applicator roll and a applicator roller associated chamber doctor blade system assumes that at the lubrication points, formed by a respective sealing system 25 and the roll shell of a applicator roll 15, the lubrication points preferably with relatively small, adjustable amounts of lubricant a liquid lubricant are supplied.
  • the supply of liquid lubricant in the direction of rotation of the applicator roll 15 takes place on its lateral surface in front of the chambered doctor blade system 16 in the region of the sealing systems 25.
  • the lubricant is supplied to the surface of the applicator roll 15 at intervals (intermittently).
  • a continuous supply of lubricant can be realized, whereby - due to the relatively small amount of lubricant required - the intermittent Lubricant supply is preferred.
  • Both working methods intermittent or continuous feed have the principle of continuous lubrication, ie there is no lubricant return.

Landscapes

  • Coating Apparatus (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (9)

  1. Procédé de dosage de fluide liquide dans une machine d'impression rotative ou une machine de vernissage, comprenant un rouleau applicateur (15) et un système racleur de chambre (16) associé au rouleau applicateur (15), le système racleur de chambre (16) présentant une première et une seconde lames de raclage (24, 23) et au moins un système d'étanchéité (25) situé chacun au niveau de la surface d'enveloppe du rouleau applicateur (15) pour délimiter le boîtier du racleur de chambre, et étant acheminé depuis des distributeurs de lubrifiant (17) disposés sur l'extérieur du boîtier du racleur de chambre en direction du rouleau applicateur (15), au niveau des systèmes d'étanchéité (25) du système racleur de chambre (16), un lubrifiant liquide dirigé dans le sens de rotation du rouleau applicateur (15) directement sur les surfaces d'enveloppe terminales du rouleau applicateur (15),
    caractérisé en ce que
    le lubrifiant liquide est apporté au niveau d'un raccordement central (22) et
    que chaque distributeur de lubrifiant (17) est alimenté en lubrifiant au moyen d'un système de canalisation (18) et de soupapes de commutation (19) ou de pompes par le raccordement central (22).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    le lubrifiant liquide est acheminé en continu.
  3. Procédé selon la revendication 1,
    caractérisé en ce que
    le lubrifiant liquide est acheminé périodiquement.
  4. Procédé de dosage de fluide liquide dans une machine d'impression rotative ou une machine de vernissage, comprenant un rouleau applicateur (15) et un système racleur de chambre (16) associé au rouleau applicateur (15), le système racleur de chambre (16) présentant une première et une seconde lames de raclage (24, 23) et au moins un système d'étanchéité (25) situé chacun au niveau de la surface d'enveloppe du rouleau applicateur (15) pour délimiter le boîtier du racleur de chambre, étant associé à chaque système d'étanchéité (25), dans le sens de rotation du rouleau applicateur (15), en amont du système racleur de chambre (16), un distributeur de lubrifiant (17) disposé à proximité à l'extérieur du boîtier du racleur de chambre et l'orifice de sortie du distributeur de lubrifiant (17) étant dirigée directement sur les parties terminales du rouleau applicateur (15),
    caractérisé en ce que
    chaque distributeur de lubrifiant (17) est relié à un système de canalisation (18) et une soupape de commutation installée en amont (19) qui est couplée à un organe de commande (20), qu'en amont de chaque soupape de commutation (19) est disposée une chaîne d'acheminement (21) qui présente un raccordement central (22) pour les distributeurs de lubrifiant (17), un lubrifiant liquide pouvant être apporté au niveau du raccordement central (22) et distribué périodiquement par les distributeurs de lubrifiant (17).
  5. Procédé de dosage de fluide liquide dans une machine d'impression rotative ou une machine de vernissage, comprenant un rouleau applicateur (15) et un système racleur de chambre (16) associé au rouleau applicateur (15), le système racleur de chambre (16) présentant une première et une seconde lames de raclage (24, 23) et au moins un système d'étanchéité (25) situé chacun au niveau de la surface d'enveloppe du rouleau applicateur (15) pour délimiter le boîtier du racleur de chambre, étant associé à chaque système d'étanchéité (25), dans le sens de rotation du rouleau applicateur (15), en amont du système racleur de chambre (16), un distributeur de lubrifiant (17) disposé à proximité à l'extérieur du boîtier du racleur de chambre et l'orifice de sortie du distributeur de lubrifiant (17) étant dirigée directement sur les parties terminales du rouleau applicateur (15),
    caractérisé en ce que
    chaque distributeur de lubrifiant (17) est relié à un système de canalisation (18) et au moins une pompe à temporisation contrôlable installée en amont qui est couplée à un organe de commande (20),
    qu'en amont de pompe est disposée au moins une chaîne d'acheminement (21) qui présente un raccordement central (22) pour les distributeurs de lubrifiant (17), un lubrifiant liquide pouvant être apporté au niveau du raccordement central (22) et distribué périodiquement par les distributeurs de lubrifiant (17).
  6. Dispositif selon la revendication 4 ou 5,
    caractérisé en ce que
    les distributeurs de lubrifiant (17) sont fixés au niveau du bâti et sont mobiles parallèlement à l'axe du rouleau applicateur (15) dans un sens de mouvement linéaire (26).
  7. Dispositif selon la revendication 6,
    caractérisé en ce que
    les distributeurs de lubrifiant (17) sont disposés au niveau d'une traverse (27) fixe sur le bâti.
  8. Dispositif selon la revendication 4 ou 5,
    caractérisé en ce que
    chaque soupape de commutation (19) est une soupape magnétique à impulsion.
  9. Dispositif selon la revendication 4 ou 5,
    caractérisé en ce que
    l'organe de commande (20) est un organe de commande de machine ou un générateur d'impulsions.
EP02015294A 2001-07-25 2002-07-10 Procédé et dispositif de dosage d'un produit liquide dans une machine de traitement Revoked EP1279500B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10136028 2001-07-25
DE10136028.2A DE10136028C5 (de) 2001-07-25 2001-07-25 Verfahren und Vorrichtung zum Dosieren eines flüssigen Mediums in einer Verarbeitungsmaschine

Publications (3)

Publication Number Publication Date
EP1279500A2 EP1279500A2 (fr) 2003-01-29
EP1279500A3 EP1279500A3 (fr) 2007-01-03
EP1279500B1 true EP1279500B1 (fr) 2012-01-04

Family

ID=7692915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015294A Revoked EP1279500B1 (fr) 2001-07-25 2002-07-10 Procédé et dispositif de dosage d'un produit liquide dans une machine de traitement

Country Status (3)

Country Link
EP (1) EP1279500B1 (fr)
AT (1) ATE539887T1 (fr)
DE (1) DE10136028C5 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1698464B1 (fr) 2005-03-05 2008-01-23 MAN Roland Druckmaschinen AG Dispositif de vernissage pour une unité d'impression d'une presse rotative
DE102009017263A1 (de) 2009-04-11 2010-10-14 Manroland Ag Vorrichtung zum Dosieren eines flüssigen Mediums in einer Verarbeitungsmaschine
DE102011100284A1 (de) 2010-05-27 2011-12-01 Heidelberger Druckmaschinen Ag Einrichtung zum Dosieren einer drucktechnischen Beschichtungsflüssigkeit auf einer Walze

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB604568A (en) * 1944-11-27 1948-07-06 Goss Printing Press Co Ltd Improvements in or relating to ink fountains for use in printing presses
DE3135711A1 (de) * 1981-07-29 1983-02-10 Windmöller & Hölscher, 4540 Lengerich Spuelfarbwerk fuer eine rotationsdruckmaschine
US4796528A (en) * 1987-05-29 1989-01-10 M.A.N. Roland Druckmaschinen Ag Separated ink fountain for a flexographic printing machine
US5012736A (en) * 1987-09-21 1991-05-07 Paper Converting Machine Company Sealing assembly for liquid fountain
DK49188D0 (da) * 1988-02-01 1988-02-01 Tresu As Rakel
JPH072200Y2 (ja) * 1988-04-18 1995-01-25 三菱重工業株式会社 印刷装置
US5150651A (en) * 1991-06-10 1992-09-29 Flores Carlos R Doctor-blade assembly for flexographic press
US5410961A (en) * 1992-12-30 1995-05-02 Fit Group, Inc. Fountain assembly
DE4447123C1 (de) * 1994-12-29 1996-04-11 Koenig & Bauer Albert Ag Kammerrakel für eine Rotationsdruckmaschine
DE19729977C2 (de) * 1997-07-12 2001-12-06 Roland Man Druckmasch Offsetdruckwerk zum Lackieren von Bedruckstoffen in einer Rotationsdruckmaschine
US5983797A (en) * 1997-11-17 1999-11-16 Howard W. DeMoore End seal engaging bearer of anilox roller assembly
DE19947458A1 (de) * 1999-10-02 2001-05-31 Perma Tec Gmbh & Co Kg Verfahren zur Schmierung eines Wälzlagers

Also Published As

Publication number Publication date
ATE539887T1 (de) 2012-01-15
DE10136028A1 (de) 2003-04-30
DE10136028C5 (de) 2016-03-17
EP1279500A3 (fr) 2007-01-03
DE10136028B4 (de) 2006-09-07
EP1279500A2 (fr) 2003-01-29

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