EP1762390B1 - Installation for ink replacement in a flexographic printing unit - Google Patents

Installation for ink replacement in a flexographic printing unit Download PDF

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Publication number
EP1762390B1
EP1762390B1 EP05019937.1A EP05019937A EP1762390B1 EP 1762390 B1 EP1762390 B1 EP 1762390B1 EP 05019937 A EP05019937 A EP 05019937A EP 1762390 B1 EP1762390 B1 EP 1762390B1
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EP
European Patent Office
Prior art keywords
cleaning
ink
chamber
installation
fluid
Prior art date
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EP05019937.1A
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German (de)
French (fr)
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EP1762390A1 (en
Inventor
Pierre Gretsch
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.)
Bobst Mex SA
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Bobst Mex SA
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Publication date
Application filed by Bobst Mex SA filed Critical Bobst Mex SA
Priority to ES05019937.1T priority Critical patent/ES2606783T3/en
Priority to EP05019937.1A priority patent/EP1762390B1/en
Priority to PCT/EP2006/008914 priority patent/WO2007031293A1/en
Priority to CN2006800411341A priority patent/CN101300136B/en
Priority to US12/066,354 priority patent/US7677175B2/en
Priority to JP2008530410A priority patent/JP5001945B2/en
Publication of EP1762390A1 publication Critical patent/EP1762390A1/en
Application granted granted Critical
Publication of EP1762390B1 publication Critical patent/EP1762390B1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/008—Cleaning arrangements or devices for doctor blades
    • 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

Definitions

  • the present invention relates to an installation for changing the ink in a printing station of a flexographic printer.
  • Known installations intended to change the ink in the various printing stations of a flexographic printer generally comprise means for cleaning the various inking elements associated with means for replenishing the ink circuit with a printing ink. another color.
  • the cleaning of printing members of flexographic printers is done, in a manner well known to practitioners, by circulating water in the channels of the inking circuit and in the doctor chamber through of the ink pump. This procedure cleans all inking units and the ink transfer screen cylinder.
  • some of these inking members, in particular the doctor blade chamber require the most perfect cleaning possible, to avoid mixing the new ink with residues of the previously used ink color. This cleaning operation consumes a quantity of cleaning fluid, usually water, very important.
  • the European patent EP-0.687.563 describes in detail a device for cleaning, by washing, the inking members of such a printing machine.
  • This patent which simplifies the cleaning operations by eliminating any manual cleaning of the printing members of the rotary printing machine, the problem of reducing the amount of cleaning fluid is not solved because of the that in order to have an acceptable cleaning, it will be necessary to carry out a large number of passages of the washing device above the doctor's chamber, with consequent very high consumption of cleaning fluid. Independently of this, the residual ink contained in the various inking lines will also have to be eliminated.
  • the object of the present invention is to provide an installation for the change of the ink in a printing station of a flexographic printer, which comprises means for cleaning the chamber with doctor blades that allow a better elimination of the ink remaining in the doctor chamber before using the cleaning fluid.
  • the figure 1 is a schematic partial sectional view of the inking station of a flexographic printer.
  • This inking station 1 comprises a platen cylinder 2 which is inked by a honeycombed cylinder 3, known to practitioners as the anilox cylinder.
  • This honeycombed cylinder 3 is supplied with ink by a doctor chamber 4, shown here in phantom in its inking position.
  • the inking station 1 also comprises means 5 for cleaning the inking members, namely: the honeycombed cylinder 3 and the doctor chamber 4.
  • the cleaning means 5 will be described in more detail below with reference to FIG. figure 7 .
  • a recovery tank 6 is arranged under the inking members in the vicinity of the cleaning means 5.
  • the inking members extend between two side frames 7, respectively 8.
  • the doctor blade chamber 4 is secured to two levers, no represented, so as to allow its pivoting from its inking position to a cleaning position represented here by reference 9.
  • the cleaning means 5 comprise a recovery member 44 of the ink contained in the doctor chamber which is composed of a rotary nozzle 21 associated with a fixed nozzle 100 (see figure 7 ).
  • the figure 2 is a schematic view in partial section of a second version of a cleaning installation of the inking station of a flexographic printer.
  • the inking station 1 comprises a platen cylinder 2 which is inked by a honeycombed cylinder 3, known to practitioners as the anilox cylinder.
  • This honeycombed cylinder 3 is supplied with ink by a doctor chamber 4, shown here in phantom in its inking position.
  • the inking station 1 also comprises means 5 for cleaning the inking members, namely: the honeycombed cylinder 3 and the doctor chamber 4.
  • a recovery tank 6 is arranged under the inking members in the vicinity of the means cleaning 5.
  • the inking members extend between two lateral frames 7, respectively 8.
  • the doctor blade chamber 4 is secured to two levers, not shown, so as to allow its pivoting from its inking position to a position of cleaning, here represented by reference 9.
  • the cleaning means 5 comprise a recovery member 45 of the ink contained in the doctor chamber which is composed of a spatula having a shape which closely matches the internal profile of the the doctor blade chamber 4, so as to recover as much ink as possible in the doctor chamber 4.
  • the figure 3 is a schematic view showing the inking of the doctor blade chamber 4 in contact, at this stage of the process, with the honeycombed cylinder 3.
  • the installation for the change of the ink which comprises a bi pump -directional 10
  • the bi-directional pump 10 sending the ink in the supply line 12 in the direction indicated by the arrow 15.
  • the inking circuit of the doctor chamber also comprises a return line 13 connecting the doctor chamber to the ink reserve 11, this in the direction indicated by the arrow 16.
  • a supply line 17 of the cleaning fluid is connected to the This supply line 17 for the cleaning fluid is equipped with a valve 18 which, during the supply of ink to the doctor chamber 4, is supplied with the ink to the doctor chamber 4. in closed position.
  • the installation for the change of the ink also comprises means for moving it, automatically in a timely manner, above a recovery tank 14 of the cleaning fluid, as will be explained later in this description. .
  • the figure 4 is a schematic view showing the recovery of ink from the doctor chamber.
  • a new job that requires a different color of ink in the printing stations of the machine will force the operator to clean the print media. To do this, it will first be necessary to recover the ink contained in the chamber with doctor blades 4. This operation will be carried out with the doctor blade chamber in its inking position, that is to say with the doctor chamber 4 in contact with the honeycombed cylinder 3, as shown in FIGS. figures 1 and 2 .
  • the pumping direction of the bi-directional pump 10 will be reversed relative to the direction indicated by the arrow 15, so as to bring the ink of the doctor chamber 4 into the ink supply 11 in the direction indicated by the arrow 19.
  • the ink contained in the return line 13, partially in the doctor chamber 4 will be brought by gravity to the ink supply 11 in the direction indicated by the arrow 20.
  • the ink contained in the doctor chamber 4 having been removed, there will still be traces of ink in the doctor chamber 4. It will then be necessary to eliminate these ink residues.
  • the doctor blade chamber 4 will be pivoted into the washing position 9 (see FIG. figure 1 ).
  • the washing means 5 will be brought above the doctor chamber 4 and, at first, the fixed nozzle 100, included in the rotary nozzle 21 (see FIG.
  • FIG 7 will be supplied with gaseous fluid, for example compressed air, and moved along the doctor chamber so as to force residual ink remaining in the doctor chamber 4 to flow into the ink supply 11, alternatively through the return line 13 and the supply line 12.
  • gaseous fluid for example compressed air
  • the operation of blowing the residual ink may be repeated several times, this depending on the cleaning program chosen.
  • the figure 5 is a schematic view showing the prewashing of the doctor blade chamber with a dirty washing fluid recovered from a previous wash such as for example that described in connection with the figure 6 .
  • the valve 18 being closed and the polluted washing fluid in the reservoir of recovery 14 will be sent to the doctor chamber 4, by the bi-directional pump 10, in the direction indicated by the arrow 24 so as to send the polluted cleaning fluid to the purification plant of the plant using the press, by the return pipe 13, in the direction indicated by the arrow 25. It will therefore be possible, after this prewashing operation, to proceed with a washing of the doctor chamber 4 such as that described in connection with the figure 6 .
  • the figure 6 is a schematic view showing the washing of the doctor blade chamber with a clean washing fluid.
  • the rotating nozzle 21 of the washing means will be supplied with clean washed fluid, the supply of compressed air having been interrupted, and moved again along the doctor chamber 4, still in the washing position, so as to be able to rinse with cleaning fluid, the inside of the doctor chamber 4.
  • the installation for changing the ink has been moved so as to be positioned on the recovery tank 14 of the washing fluid.
  • valve 18 of the supply line 17 of the cleaning fluid will be opened and the bi-directional pump 10 will be actuated so as to send this cleaning fluid, in the direction indicated by the arrow 22, in the direction of the doctor chamber 4, the return of the cleaning fluid being provided through the return pipe 13 in the direction indicated by the arrow 23. This operation will last as long as necessary to completely remove all ink residues from the ink circuit.
  • the valve 18 will then be closed and the polluted washing fluid will be stored in the recovery tank 14 for subsequent washing of the doctor blade chamber 4.
  • the installation for changing the ink also comprises conventional means for cleaning the other inking units, means such as those mentioned in the preamble of the present patent application in relation to the European patent EP 0 687 563 B1 .
  • the figure 7 is a sectional view of the cleaning member 5 of the doctor chamber 4 according to the version represented by the figure 1 .
  • This body of cleaning 5 comprises a washing head 26 formed of a housing 27 comprising a sole 28 traversed by a supply line 29 of cleaning fluid and compressed air to the rotary nozzle 21 and the fixed nozzle 100.
  • the sole 28 is equipped with a brush 30 whose bristles perfectly fit the outer profile of the doctor chamber 4.
  • the washing head 26 is arranged to be pivotable from a horizontal position to a position of contact with the doctor chamber 4
  • the washing head 26 is mounted at one end of an arm 31, the other end of which is pivotally mounted in a bearing 32 comprising inter alia ball bearings 33 and 34.
  • a rocket 35 is fixed to the lower part of the bearing 32 by means of the screws 36 and 37.
  • the rocket 35 is mounted on ball bearings 39 and 40 so as to be able to pivot in a bearing block 38, thus allowing the rotation in the horizontal direction of the arm 31 supporting the head 26.
  • the bearing block 38 is integral with a support 41 whose one end is fixed on a carriage 42 that can move transversely along the doctor chamber 4 under the action of a pneumatic cylinder. 43 or any similar body.
  • the supply of the rotary nozzle 21 in cleaning fluid is provided by the pipe 46 injecting the cleaning fluid to the rotary nozzle 21 by the bore 47 of the fuse 35 opening into the bore 48 arranged in the arm 31.
  • the figure 8 is a view of the rotating nozzle 21 of the cleaning member 5 of the figure 7 .
  • the rotary nozzle is shown in two different positions so as to show the arrangement of the slots 50 around the rotary nozzle 21.
  • the slots 50 have a particular shape for the action of the cleaning fluid causes the movement of the rotating nozzle 21 around the pipe 29 (see figure 6 ) passing through the bore 51 of the rotary nozzle 21.
  • the advantage provided by the present lies mainly in the economy of the cleaning fluid due to the fact of the recovery of the polluted cleaning fluid, in the recovery tank 14, to then use it as a prewashing fluid of the chamber. scrapers 4 and in a more complete recovery of the ink remaining in the doctor chamber, just before starting a washing cycle with a washing fluid first polluted, then clean.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Ink Jet (AREA)

Description

La présente invention a pour objet une installation pour le changement de l'encre dans une station d'impression d'une imprimeuse flexographique.The present invention relates to an installation for changing the ink in a printing station of a flexographic printer.

Les installations connues destinées au changement de l'encre dans les différentes stations d'impression d'une imprimeuse flexographique comprennent généralement des moyens de nettoyage des divers organes d'encrage associés à des moyens pour réapprovisionner le circuit d'encrage avec une encre d'une autre couleur. Actuellement, le nettoyage des organes d'impression des imprimeuses flexographiques s'effectue, d'une manière bien connue des praticiens, en faisant circuler de l'eau dans les canalisations du circuit d'encrage et dans la chambre à racles par l'intermédiaire de la pompe à encre. Cette façon de faire nettoie tous les organes d'encrage ainsi que le cylindre tramé de transfert d'encre. Cependant, certains de ces organes d'encrage, en particulier la chambre à racles, nécessitent un nettoyage le plus parfait possible, cela pour éviter un mélange de la nouvelle encre avec des résidus de la couleur de l'encre précédemment utilisée. Cette opération de nettoyage consomme une quantité de fluide de nettoyage, en général de l'eau, très importante.Known installations intended to change the ink in the various printing stations of a flexographic printer generally comprise means for cleaning the various inking elements associated with means for replenishing the ink circuit with a printing ink. another color. Currently, the cleaning of printing members of flexographic printers is done, in a manner well known to practitioners, by circulating water in the channels of the inking circuit and in the doctor chamber through of the ink pump. This procedure cleans all inking units and the ink transfer screen cylinder. However, some of these inking members, in particular the doctor blade chamber, require the most perfect cleaning possible, to avoid mixing the new ink with residues of the previously used ink color. This cleaning operation consumes a quantity of cleaning fluid, usually water, very important.

Le brevet européen EP- 0.687.563 décrit en détail un dispositif de nettoyage, par lavage, des organes d'encrage d'une telle machine d'impression. Dans ce brevet, qui simplifie les opérations de nettoyage en supprimant tout nettoyage manuel des organes d'impression de la machine rotative d'impression, le problème de la réduction de la quantité de fluide de nettoyage n'est pas résolu, cela en raison du fait que pour avoir un nettoyage acceptable, il sera nécessaire d'effectuer un grand nombre de passages du dispositif de lavage au-dessus de la chambre à racles, avec pour corollaire une consommation très importante de fluide de nettoyage. Indépendamment de cela, l'encre résiduelle contenue dans les diverses canalisations d'encrage devra aussi être éliminée.The European patent EP-0.687.563 describes in detail a device for cleaning, by washing, the inking members of such a printing machine. In this patent, which simplifies the cleaning operations by eliminating any manual cleaning of the printing members of the rotary printing machine, the problem of reducing the amount of cleaning fluid is not solved because of the that in order to have an acceptable cleaning, it will be necessary to carry out a large number of passages of the washing device above the doctor's chamber, with consequent very high consumption of cleaning fluid. Independently of this, the residual ink contained in the various inking lines will also have to be eliminated.

On connaît également d'après les documents US- 2005/ 0.103.217 et US- 2004/ 0.123.758 une installation de lavage automatique pour un circuit d'encrage d'une machine d'impression. L'installation comprend notamment une chambre d'encrage du cylindre, une cuve pour un fluide de lavage propre et une cuve pour un fluide de lavage sale. Le circuit d'encrage est d'abord lavé avec un fluide pollué, puis est rincé avec un fluide propre.It is also known from documents US-2005 / 0.103.217 and US-2004 / 0.123.758 an automatic washing installation for an inking circuit of a printing machine. The installation comprises in particular an inking chamber of the cylinder, a tank for a clean washing fluid and a tank for a tank. dirty washing fluid. The inking circuit is first washed with a polluted fluid, then rinsed with a clean fluid.

Le but de la présente invention consiste à proposer une installation, pour le changement de l'encre dans une station d'impression d'une imprimeuse flexographique, qui comporte des moyens de nettoyage de la chambre à racles qui autorisent une meilleure élimination de l'encre subsistant dans la chambre à racle avant l'utilisation du fluide de nettoyage.The object of the present invention is to provide an installation for the change of the ink in a printing station of a flexographic printer, which comprises means for cleaning the chamber with doctor blades that allow a better elimination of the ink remaining in the doctor chamber before using the cleaning fluid.

Ce but est atteint par une installation conforme à ce qu'énonce la revendication 1.This object is achieved by an installation according to claim 1.

L'invention sera décrite ci-après de façon plus détaillée à l'aide d'un exemple d'exécution sans caractère limitatif et illustré par les dessins annexés dans lesquels :

  • La figure 1 est une vue schématique en coupe partielle d'une première version d'une installation de nettoyage de la station d'encrage d'une imprimeuse flexographique,
  • La figure 2 est une vue schématique en coupe partielle d'une seconde version d'une installation de nettoyage de la station d'encrage d'une imprimeuse flexographique,
  • La figure 3 est une vue schématique représentant la mise en encrage de la chambre à racles,
  • La figure 4 est une vue schématique représentant la récupération de l'encre de la chambre à racles,
  • La figure 5 est une vue schématique représentant le prélavage de la chambre à racles avec un fluide de lavage sale récupéré d'un lavage précèdent,
  • La figure 6 est une vue schématique représentant le lavage de la chambre à racles avec un fluide de lavage propre,
  • La figure 7 est une vue en coupe de l'organe de lavage de la chambre à racles et,
  • La figure 8 est une vue de la buse rotative de l'organe de lavage de la figure 7.
The invention will be described hereinafter in more detail with the aid of a nonlimiting exemplary embodiment and illustrated by the appended drawings in which:
  • The figure 1 is a schematic view in partial section of a first version of a cleaning installation of the inking station of a flexographic printer,
  • The figure 2 is a schematic partial sectional view of a second version of a cleaning installation of the inking station of a flexographic printer,
  • The figure 3 is a schematic view showing the inking of the doctor chamber,
  • The figure 4 is a schematic view showing the recovery of the ink from the doctor chamber,
  • The figure 5 is a schematic view showing the prewashing of the doctor blade chamber with a dirty wash fluid recovered from a previous wash,
  • The figure 6 is a schematic view showing the washing of the doctor blade chamber with a clean washing fluid,
  • The figure 7 is a sectional view of the cleaning member of the doctor chamber and,
  • The figure 8 is a view of the rotating nozzle of the washing organ of the figure 7 .

La figure 1 est une vue schématique en coupe partielle de la station d'encrage d'une imprimeuse flexographique. Cette station d'encrage 1 comprend un cylindre porte-clichés 2 qui est encré par un cylindre alvéolé 3, connu des praticiens sous le nom de cylindre anilox. Ce cylindre alvéolé 3 est alimenté en encre par une chambre à racles 4, représentée ici en traits mixtes dans sa position d'encrage. La station d'encrage 1 comprend aussi des moyens de nettoyage 5 des organes d'encrage, soit : le cylindre alvéolé 3 et la chambre à racles 4. Les moyens de nettoyage 5 seront décrits plus en détail par la suite en se référant à la figure 7. Un bac de récupération 6 est agencé sous les organes d'encrage au voisinage des moyens de nettoyage 5. Les organes d'encrage s'étendent entre deux bâtis latéraux 7, respectivement 8. La chambre à racles 4 est solidaire de deux leviers, non représentés, de façon à permettre son pivotement de sa position d'encrage à une position de nettoyage représentée ici par la référence 9. Dans cette exécution, les moyens de nettoyage 5 comprennent un organe de récupération 44 de l'encre contenue dans la chambre à racles qui est composé d'une buse rotative 21 associée à une buse fixe 100 (voir figure 7).The figure 1 is a schematic partial sectional view of the inking station of a flexographic printer. This inking station 1 comprises a platen cylinder 2 which is inked by a honeycombed cylinder 3, known to practitioners as the anilox cylinder. This honeycombed cylinder 3 is supplied with ink by a doctor chamber 4, shown here in phantom in its inking position. The inking station 1 also comprises means 5 for cleaning the inking members, namely: the honeycombed cylinder 3 and the doctor chamber 4. The cleaning means 5 will be described in more detail below with reference to FIG. figure 7 . A recovery tank 6 is arranged under the inking members in the vicinity of the cleaning means 5. The inking members extend between two side frames 7, respectively 8. The doctor blade chamber 4 is secured to two levers, no represented, so as to allow its pivoting from its inking position to a cleaning position represented here by reference 9. In this embodiment, the cleaning means 5 comprise a recovery member 44 of the ink contained in the doctor chamber which is composed of a rotary nozzle 21 associated with a fixed nozzle 100 (see figure 7 ).

La figure 2 est une vue schématique en coupe partielle d'une seconde version d'une installation de nettoyage de la station d'encrage d'une imprimeuse flexographique. Dans cette version, la station d'encrage 1 comprend un cylindre porte-clichés 2 qui est encré par un cylindre alvéolé 3, connu des praticiens sous le nom de cylindre anilox. Ce cylindre alvéolé 3 est alimenté en encre par une chambre à racles 4, représentée ici en traits mixtes dans sa position d'encrage. La station d'encrage 1 comprend aussi des moyens de nettoyage 5 des organes d'encrage, soit : le cylindre alvéolé 3 et la chambre à racles 4. Un bac de récupération 6 est agencé sous les organes d'encrage au voisinage des moyens de nettoyage 5. Les organes d'encrage s'étendent entre deux bâtis latéraux 7, respectivement 8. La chambre à racles 4 est solidaire de deux leviers, non représentés, de façon à permettre son pivotement de sa position d'encrage à une position de nettoyage représentée ici par la référence 9. Dans cette exécution, les moyens de nettoyage 5 comprennent un organe de récupération 45 de l'encre contenue dans la chambre à racles qui est composé d'une spatule ayant une forme qui épouse étroitement le profil intérieur de la chambre à racles 4, cela de façon à pouvoir récupérer le plus possible d'encre se trouvant dans la chambre à racles 4. Cette solution permet de ce fait de procéder à une récupération mécanique de l'encre contenue dans la chambre à racles lors du déplacement de la spatule le long de la chambre à racles 4.The figure 2 is a schematic view in partial section of a second version of a cleaning installation of the inking station of a flexographic printer. In this version, the inking station 1 comprises a platen cylinder 2 which is inked by a honeycombed cylinder 3, known to practitioners as the anilox cylinder. This honeycombed cylinder 3 is supplied with ink by a doctor chamber 4, shown here in phantom in its inking position. The inking station 1 also comprises means 5 for cleaning the inking members, namely: the honeycombed cylinder 3 and the doctor chamber 4. A recovery tank 6 is arranged under the inking members in the vicinity of the means cleaning 5. The inking members extend between two lateral frames 7, respectively 8. The doctor blade chamber 4 is secured to two levers, not shown, so as to allow its pivoting from its inking position to a position of cleaning, here represented by reference 9. In this embodiment, the cleaning means 5 comprise a recovery member 45 of the ink contained in the doctor chamber which is composed of a spatula having a shape which closely matches the internal profile of the the doctor blade chamber 4, so as to recover as much ink as possible in the doctor chamber 4. This solution makes it possible to perform a mechanical recovery of the ink contained in the doctor chamber when moving the spatula along the doctor chamber 4.

La figure 3 est une vue schématique représentant la mise en encrage de la chambre à racles 4 en contact, à ce stade du processus, avec le cylindre alvéolé 3. Pour cette opération, l'installation pour le changement de l'encre, qui comprend une pompe bi-directionnelle 10, est amenée au voisinage d'une réserve d'encre 11 de sorte à pouvoir alimenter en encre la chambre à racles 4 par l'intermédiaire d'une canalisation d'amenée 12, la pompe bi-directionnelle 10 envoyant l'encre dans la canalisation d'amenée 12 dans le sens indiqué par la flèche 15. Le circuit d'encrage de la chambre à racles comprend également une canalisation de retour 13 reliant la chambre à racles à la réserve d'encre 11, cela dans le sens indiqué par la flèche 16. Une canalisation d'amenée 17 du fluide de nettoyage est connectée à la canalisation d'amenée 12 de l'encre à la chambre à racle 4. Cette canalisation d'amenée 17 du fluide de nettoyage est équipée d'une vanne 18 qui, lors de l'alimentation en encre de la chambre à racle 4, est en position fermée. L'installation pour le changement de l'encre comprend aussi des moyens pour la déplacer, automatiquement en temps opportun, au-dessus d'un réservoir de récupération 14 du fluide de nettoyage, ainsi que cela sera expliqué dans la suite de la présente description.The figure 3 is a schematic view showing the inking of the doctor blade chamber 4 in contact, at this stage of the process, with the honeycombed cylinder 3. For this operation, the installation for the change of the ink, which comprises a bi pump -directional 10, is brought in the vicinity of a reserve of ink 11 so as to supply ink to the doctor chamber 4 via a supply line 12, the bi-directional pump 10 sending the ink in the supply line 12 in the direction indicated by the arrow 15. The inking circuit of the doctor chamber also comprises a return line 13 connecting the doctor chamber to the ink reserve 11, this in the direction indicated by the arrow 16. A supply line 17 of the cleaning fluid is connected to the This supply line 17 for the cleaning fluid is equipped with a valve 18 which, during the supply of ink to the doctor chamber 4, is supplied with the ink to the doctor chamber 4. in closed position. The installation for the change of the ink also comprises means for moving it, automatically in a timely manner, above a recovery tank 14 of the cleaning fluid, as will be explained later in this description. .

La figure 4 est une vue schématique représentant la récupération de l'encre de la chambre à racles. Un nouveau travail nécessitant une encre d'une couleur différente dans les stations d'impression de la machine obligera l'opérateur à procéder au nettoyage des organes d'impression. Pour ce faire, il faudra, dans un premier temps, récupérer l'encre contenue dans la chambre à racles 4. Cette opération s'effectuera avec la chambre à racles dans sa position d'encrage, c'est-à-dire avec la chambre à racles 4 en contact avec le cylindre alvéolé 3, comme cela est représenté aux figures 1 et 2. Le sens de pompage de la pompe bi-directionnelle 10 sera inversé par rapport au sens indiqué par la flèche 15, de façon à amener l'encre de la chambre à racle 4 dans la réserve d'encre 11 dans le sens indiqué par la flèche 19. L'encre contenue dans la canalisation de retour 13, partiellement dans la chambre à racles 4 sera amenée par gravité à la réserve d'encre 11 dans le sens indiqué par la flèche 20. L'encre contenue dans la chambre à racles 4 ayant été retirée, il subsistera encore des traces d'encre dans la chambre à racles 4. Il conviendra alors d'éliminer ces résidus d'encre. Pour ce faire, la chambre à racles 4 sera amenée, par pivotement, dans la position de lavage 9 (voir figure 1). Les moyens de lavage 5 seront amenés au-dessus de la chambre à racles 4 et, dans un premier temps, la buse fixe 100, comprise dans la buse rotative 21 (voir figure 7), sera alimentée en fluide gazeux, par exemple de l'air comprimé, et déplacée le long de la chambre à racles de manière à forcer l'encre résiduelle subsistant dans la chambre à racles 4 à s'écouler dans la réserve d'encre 11, alternativement par la canalisation de retour 13 et par la canalisation d'amenée 12. L'opération de soufflage de l'encre résiduelle pourra se répéter plusieurs fois, cela en fonction du programme de nettoyage choisi.The figure 4 is a schematic view showing the recovery of ink from the doctor chamber. A new job that requires a different color of ink in the printing stations of the machine will force the operator to clean the print media. To do this, it will first be necessary to recover the ink contained in the chamber with doctor blades 4. This operation will be carried out with the doctor blade chamber in its inking position, that is to say with the doctor chamber 4 in contact with the honeycombed cylinder 3, as shown in FIGS. figures 1 and 2 . The pumping direction of the bi-directional pump 10 will be reversed relative to the direction indicated by the arrow 15, so as to bring the ink of the doctor chamber 4 into the ink supply 11 in the direction indicated by the arrow 19. The ink contained in the return line 13, partially in the doctor chamber 4 will be brought by gravity to the ink supply 11 in the direction indicated by the arrow 20. The ink contained in the doctor chamber 4 having been removed, there will still be traces of ink in the doctor chamber 4. It will then be necessary to eliminate these ink residues. To do this, the doctor blade chamber 4 will be pivoted into the washing position 9 (see FIG. figure 1 ). The washing means 5 will be brought above the doctor chamber 4 and, at first, the fixed nozzle 100, included in the rotary nozzle 21 (see FIG. figure 7 ), will be supplied with gaseous fluid, for example compressed air, and moved along the doctor chamber so as to force residual ink remaining in the doctor chamber 4 to flow into the ink supply 11, alternatively through the return line 13 and the supply line 12. The operation of blowing the residual ink may be repeated several times, this depending on the cleaning program chosen.

La figure 5 est une vue schématique représentant le prélavage de la chambre à racles avec un fluide de lavage sale récupéré d'un lavage précèdent tel que par exemple celui décrit en relation avec la figure 6. La vanne 18 étant fermée et le fluide de lavage pollué se trouvant dans le réservoir de récupération 14 sera envoyé dans la chambre à racles 4, par la pompe bi-directionnelle 10, dans le sens indiqué par la flèche 24 de manière à envoyer ce fluide de nettoyage pollué vers la station d'épuration de l'usine utilisant la presse, par la canalisation de retour 13, cela en direction indiquée par la flèche 25. On pourra donc, après cette opération de prélavage, procéder à un lavage de la chambre à racles 4 tel que celui décrit en relation avec la figure 6.The figure 5 is a schematic view showing the prewashing of the doctor blade chamber with a dirty washing fluid recovered from a previous wash such as for example that described in connection with the figure 6 . The valve 18 being closed and the polluted washing fluid in the reservoir of recovery 14 will be sent to the doctor chamber 4, by the bi-directional pump 10, in the direction indicated by the arrow 24 so as to send the polluted cleaning fluid to the purification plant of the plant using the press, by the return pipe 13, in the direction indicated by the arrow 25. It will therefore be possible, after this prewashing operation, to proceed with a washing of the doctor chamber 4 such as that described in connection with the figure 6 .

La figure 6 est une vue schématique représentant le lavage de la chambre à racles avec un fluide de lavage propre. Après avoir terminé les opérations décrites en relation avec la figure 3, la buse rotative 21 des moyens de lavage sera alimentée en fluide de lavagé propre, l'alimentation en air comprimé ayant été interrompue, et déplacée à nouveau le long de la chambre à racles 4, toujours en position de lavage, de façon à pouvoir rincer avec du fluide de nettoyage, l'intérieur de la chambre à racles 4. Ainsi que représenté sur la figure 6, l'installation pour le changement de l'encre aura été déplacée de façon à venir se positionner sur le réservoir de récupération 14 du fluide de lavage. La vanne 18 de la canalisation d'amenée 17 du fluide de nettoyage sera ouverte et la pompe bi-directionnelle 10 sera actionnée de façon à envoyer ce fluide de nettoyage, dans le sens indiqué par la flèche 22, en direction de la chambre à racles 4, le retour du fluide de nettoyage étant assuré par le truchement de la canalisation de retour 13 dans le sens indiqué par la flèche 23. Cette opération durera aussi longtemps que nécessaire pour complètement éliminer tous les résidus d'encre du circuit d'encrage. La vanne 18 sera ensuite fermée et le fluide de lavage pollué sera stocké dans le réservoir de récupération 14, cela pour une utilisation subséquente de lavage de la chambre à racles 4. Cette manière de faire permettra, lors d'une prochaine opération de lavage de la chambre à racles, d'utiliser ce fluide de nettoyage pollué pour effectuer un prélavage de la chambre à racles en économisant ainsi une quantité non négligeable de fluide de nettoyage propre en commençant l'opération de nettoyage avec ce fluide pollué en lieu et place d'un fluide de nettoyage propre qui sera utilisé par la suite.The figure 6 is a schematic view showing the washing of the doctor blade chamber with a clean washing fluid. After completing the operations described in relation to the figure 3 , the rotating nozzle 21 of the washing means will be supplied with clean washed fluid, the supply of compressed air having been interrupted, and moved again along the doctor chamber 4, still in the washing position, so as to be able to rinse with cleaning fluid, the inside of the doctor chamber 4. As shown on the figure 6 , the installation for changing the ink has been moved so as to be positioned on the recovery tank 14 of the washing fluid. The valve 18 of the supply line 17 of the cleaning fluid will be opened and the bi-directional pump 10 will be actuated so as to send this cleaning fluid, in the direction indicated by the arrow 22, in the direction of the doctor chamber 4, the return of the cleaning fluid being provided through the return pipe 13 in the direction indicated by the arrow 23. This operation will last as long as necessary to completely remove all ink residues from the ink circuit. The valve 18 will then be closed and the polluted washing fluid will be stored in the recovery tank 14 for subsequent washing of the doctor blade chamber 4. This way of doing so, during a subsequent washing operation of the scraper chamber, to use this polluted cleaning fluid to prewash the scraper chamber thus saving a significant amount of clean cleaning fluid by starting the cleaning operation with this polluted fluid in place of a clean cleaning fluid that will be used later.

L'installation pour le changement de l'encre comprend également des moyens conventionnels pour nettoyer les autres organes d'encrage, moyens tels que ceux mentionnés dans le préambule de la présente demande de brevet en relation avec le brevet européen EP 0 687 563 B1 .The installation for changing the ink also comprises conventional means for cleaning the other inking units, means such as those mentioned in the preamble of the present patent application in relation to the European patent EP 0 687 563 B1 .

La figure 7 est une vue en coupe de l'organe de nettoyage 5 de la chambre à racles 4 selon la version représentée par la figure 1. Cet organe de nettoyage 5 comprend une tête de lavage 26 formée d'un boîtier 27 comprenant une semelle 28 traversée par une canalisation d'amenée 29 de fluide de nettoyage et d'air comprimé à la buse rotative 21 et à la buse fixe 100. La semelle 28 est équipée d'une brosse 30 dont les poils épousent parfaitement le profil extérieur de la chambre à racles 4. La tête de lavage 26 est agencée de façon à pouvoir pivoter d'une position horizontale à une position de contact avec la chambre à racles 4. La tête de lavage 26 est montée à l'une des extrémités d'un bras 31 dont l'autre extrémité est montée à pivotement dans un palier 32 comportant entre autres des roulements à billes 33 et 34. Une fusée 35 est fixée à la partie inférieure du palier 32 au moyen des vis 36 et 37. La fusée 35 est montée sur des roulements à billes 39 et 40 de façon à pouvoir pivoter dans un bloc-palier 38, autorisant de ce fait la rotation dans le sens horizontal du bras 31 supportant la tête de lavage 26. Le bloc-palier 38 est solidaire d'un support 41 dont l'une des extrémités est fixée sur un chariot 42 pouvant se déplacer transversalement le long de la chambre à racles 4 sous l'action d'un cylindre pneumatique 43 ou de tout autre organe similaire. L'alimentation de la buse rotative 21 en fluide de nettoyage est assurée par la canalisation 46 injectant le fluide de nettoyage jusqu'à la buse rotative 21 par le perçage 47 de la fusée 35 débouchant dans le perçage 48 aménagé dans le bras 31. L'alimentation de la buse fixe 100, de la buse rotative 21, en air comprimé est assurée par l'intermédiaire du tuyau 49. La rotation de la buse rotative 21 autour de la canalisation 29 s'effectue par l'action du fluide de nettoyage éjecté par les fentes 50 de la buse rotative 21 (voir figure 7). Les opérations de nettoyage de la chambre à racles 4 ayant été accomplies, on fera pivoter la tête de lavage 26 de façon à la désengager de la chambre à racles et on fera pivoter le bras 31 sur la fusée 35 de manière à amener l'organe de nettoyage 5 dans une position hors service autorisant le pivotement de la chambre à racles 4 pour l'amener au contact du cylindre alvéolé 3 pour pouvoir réalimenter la chambre à racles 4 avec une encre de couleur différente.The figure 7 is a sectional view of the cleaning member 5 of the doctor chamber 4 according to the version represented by the figure 1 . This body of cleaning 5 comprises a washing head 26 formed of a housing 27 comprising a sole 28 traversed by a supply line 29 of cleaning fluid and compressed air to the rotary nozzle 21 and the fixed nozzle 100. The sole 28 is equipped with a brush 30 whose bristles perfectly fit the outer profile of the doctor chamber 4. The washing head 26 is arranged to be pivotable from a horizontal position to a position of contact with the doctor chamber 4 The washing head 26 is mounted at one end of an arm 31, the other end of which is pivotally mounted in a bearing 32 comprising inter alia ball bearings 33 and 34. A rocket 35 is fixed to the lower part of the bearing 32 by means of the screws 36 and 37. The rocket 35 is mounted on ball bearings 39 and 40 so as to be able to pivot in a bearing block 38, thus allowing the rotation in the horizontal direction of the arm 31 supporting the head 26. The bearing block 38 is integral with a support 41 whose one end is fixed on a carriage 42 that can move transversely along the doctor chamber 4 under the action of a pneumatic cylinder. 43 or any similar body. The supply of the rotary nozzle 21 in cleaning fluid is provided by the pipe 46 injecting the cleaning fluid to the rotary nozzle 21 by the bore 47 of the fuse 35 opening into the bore 48 arranged in the arm 31. L supply of the fixed nozzle 100, of the rotary nozzle 21, with compressed air is provided by means of the pipe 49. The rotation of the rotary nozzle 21 around the pipe 29 is effected by the action of the cleaning fluid ejected by the slots 50 of the rotary nozzle 21 (see figure 7 ). The cleaning operations of the doctor chamber 4 having been completed, the washing head 26 will be rotated so as to disengage it from the doctor chamber and the arm 31 will be pivoted on the rocket 35 so as to bring the organ cleaning device 5 in an off position allowing pivoting of the doctor blade chamber 4 to bring it into contact with the honeycombed cylinder 3 in order to refill the doctor blade chamber 4 with a different color ink.

La figure 8 est une vue de la buse rotative 21 de l'organe de nettoyage 5 de la figure 7. Sur cette figure, la buse rotative est représentée dans deux positions différentes de façon à pouvoir montrer la disposition des fentes 50 autour de la buse rotative 21. Les fentes 50 ont une forme particulière pour que l'action du fluide de nettoyage provoque le mouvement de la buse rotative 21 autour de la canalisation 29 (voir figure 6) passant par l'alésage 51 de la buse rotative 21.The figure 8 is a view of the rotating nozzle 21 of the cleaning member 5 of the figure 7 . In this figure, the rotary nozzle is shown in two different positions so as to show the arrangement of the slots 50 around the rotary nozzle 21. The slots 50 have a particular shape for the action of the cleaning fluid causes the movement of the rotating nozzle 21 around the pipe 29 (see figure 6 ) passing through the bore 51 of the rotary nozzle 21.

L'avantage procuré par la présente réside principalement dans l'économie de fluide de nettoyage en raison du fait de la récupération du fluide de nettoyage pollué, dans le réservoir de récupération 14, pour l'utiliser ensuite comme fluide de prélavage de la chambre à racles 4 et dans une récupération plus complète de l'encre restant dans la chambre à racles, cela juste avant de commencer un cycle de lavage avec un fluide de lavage d'abord pollué, puis propre.The advantage provided by the present lies mainly in the economy of the cleaning fluid due to the fact of the recovery of the polluted cleaning fluid, in the recovery tank 14, to then use it as a prewashing fluid of the chamber. scrapers 4 and in a more complete recovery of the ink remaining in the doctor chamber, just before starting a washing cycle with a washing fluid first polluted, then clean.

De nombreuses améliorations peuvent être apportées à la présente invention dans le cadre des revendications.Many improvements can be made to the present invention within the scope of the claims.

Claims (8)

  1. Installation for changing ink in a printing unit of a flexographic printing machine, comprising a cleaning device of the various inking components, a cellular roller (3) and a scraper chamber (4), characterised in that the cleaning device (5) of the scraper chamber (4) comprises a wash head (26) provided with a rotary jet (21) and a fixed jet (100), supplied with cleaning fluid and with gaseous fluid, combined with a brush (30).
  2. Installation according to claim 1, characterised in that the wash head is pivot mounted on an arm (31).
  3. Installation according to claim 2, characterised in that the arm (31) is mounted on a spindle (35) enabling its rotation in the horizontal direction.
  4. Installation according to claim 3, characterised in that the spindle (35) is mounted in bearing unit (38) solid with a support (41) attached to a carriage (42) capable of moving transversely on a rail (43) under the action of a pneumatic cylinder.
  5. Installation according to claim 3, characterised in that the arm (31) and the spindle (35) comprise drilled holes (47, 48) enabling the cleaning fluid to be conveyed to the rotary jet (21).
  6. Installation according to claim 1, characterised in that the gaseous fluid supply of the fixed jet (100) is ensured by means of a tube (49) and that said gaseous fluid is ejected, through the fixed jet (100), by the centre of the rotary jet (21).
  7. Installation according to claim 1, characterised in that the rotary jet (21) comprises slots (50) arranged so as to cause its rotation under the action of the cleaning fluid.
  8. Installation for changing ink in a printing unit of a flexographic printing machine, comprising the cleaning device (5) of the various inking components (3, 4), a cellular roller (3) and a scraper chamber (4), characterised in that the cleaning device (5) of the scraper chamber (4) comprises a recovery component (45) of the ink contained in the scraper chamber (4) which is comprised of a spatula having a shape that directly matches the inner profile of the scraper chamber (4).
EP05019937.1A 2005-09-13 2005-09-13 Installation for ink replacement in a flexographic printing unit Active EP1762390B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES05019937.1T ES2606783T3 (en) 2005-09-13 2005-09-13 Installation for changing ink in a printing station of a flexographic printer
EP05019937.1A EP1762390B1 (en) 2005-09-13 2005-09-13 Installation for ink replacement in a flexographic printing unit
PCT/EP2006/008914 WO2007031293A1 (en) 2005-09-13 2006-09-13 Installation for changing ink in a printing station of a flexographic printer
CN2006800411341A CN101300136B (en) 2005-09-13 2006-09-13 Installation for changing ink in a printing station of a flexographic printer
US12/066,354 US7677175B2 (en) 2005-09-13 2006-09-13 Installation for changing ink in a printing station of a flexographic printer
JP2008530410A JP5001945B2 (en) 2005-09-13 2006-09-13 Ink input system for ink replacement in printing station of flexographic printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05019937.1A EP1762390B1 (en) 2005-09-13 2005-09-13 Installation for ink replacement in a flexographic printing unit

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EP1762390A1 EP1762390A1 (en) 2007-03-14
EP1762390B1 true EP1762390B1 (en) 2016-11-30

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EP (1) EP1762390B1 (en)
JP (1) JP5001945B2 (en)
CN (1) CN101300136B (en)
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WO (1) WO2007031293A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5529497B2 (en) * 2009-11-05 2014-06-25 三菱重工印刷紙工機械株式会社 Ink cleaning method and apparatus for flexographic printing machine
EP2933103B1 (en) * 2014-04-14 2018-08-01 Mayr-Melnhof Karton AG Method for cleaning an inking device and inking device
SG11201703352YA (en) * 2014-10-31 2017-05-30 Otg Experience Llc Container cup package
CN105459593A (en) * 2016-01-11 2016-04-06 湖州吉昌丝绸有限公司 Cleaning device for guiding belt of circular screen printer
WO2017152116A1 (en) * 2016-03-04 2017-09-08 Quad/Tech, Inc. System and method for rapid press changeover with sensed ink characteristic

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1091878A (en) * 1965-09-01 1967-11-22 Lodding Engineering Corp Broke and fuzz remover for doctor blades
DE3580908D1 (en) * 1984-12-26 1991-01-24 Dainippon Printing Co Ltd LOW PRESSURE SYSTEM.
JPH0764053B2 (en) * 1988-12-06 1995-07-12 株式会社東京機械製作所 Method and device for automatically cleaning liquid supply roller of rotary press
US5213044A (en) * 1990-11-30 1993-05-25 Como Technologies, Incorporated Method and apparatus for use in printing
CH690124A5 (en) * 1994-06-17 2000-05-15 Bobst Sa washing device of the inking means of a rotary printing machine.
JP2955990B2 (en) * 1996-06-28 1999-10-04 株式会社沖電気コミュニケーションシステムズ Screen plate cleaning device
DK173668B1 (en) * 1997-03-24 2001-06-05 Tresu As Process and pump unit for supplying a printing plant with color and cleaning liquid
JPH10296961A (en) * 1997-04-24 1998-11-10 Mitsubishi Heavy Ind Ltd Flexographic press
US5967044A (en) * 1998-05-04 1999-10-19 Marquip, Inc. Quick change ink supply for printer
EP0970810B1 (en) * 1998-06-25 2001-11-28 Fischer & Krecke Gmbh & Co. Method and device for cleaning the ink transport system of a printing press
GB2339722B (en) * 1998-07-17 2003-02-19 Armstrong World Ind Ltd Improvements in and relating to printing machines
CH693305A5 (en) * 1999-03-05 2003-05-30 Bobst Sa Removable inking device for a flexographic printing machine.
DE10246946B4 (en) * 2001-11-07 2013-06-13 Heidelberger Druckmaschinen Ag Device for coating substrates in a printing machine
DE10308948A1 (en) * 2002-02-28 2003-12-11 Creo Inc Apparatus for application of an image reproducible coating to a substrate comprises at least one spray nozzle and at least one wash nozzle which form an integral unit
ITGE20020033A1 (en) * 2002-04-24 2003-10-24 Schiavi Spa AUTOMATIC WASHING METHOD OF THE INKING CIRCUIT IN ROTARY PRINTING MACHINES, AND PLANT FOR IMPLEMENTING THE METHOD
WO2004045854A2 (en) * 2002-11-15 2004-06-03 Graymills Corporation System and method for delivering and flushing ink and other liquids in a printing press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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US20090020030A1 (en) 2009-01-22
WO2007031293A1 (en) 2007-03-22
US7677175B2 (en) 2010-03-16
CN101300136B (en) 2010-05-26
JP2009507686A (en) 2009-02-26
CN101300136A (en) 2008-11-05
JP5001945B2 (en) 2012-08-15
ES2606783T3 (en) 2017-03-27
EP1762390A1 (en) 2007-03-14

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