EP0924074B1 - Dispositif doseur d'un liquide de couchage pour supports d'impressions dans une machine à imprimer - Google Patents

Dispositif doseur d'un liquide de couchage pour supports d'impressions dans une machine à imprimer Download PDF

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Publication number
EP0924074B1
EP0924074B1 EP98123812A EP98123812A EP0924074B1 EP 0924074 B1 EP0924074 B1 EP 0924074B1 EP 98123812 A EP98123812 A EP 98123812A EP 98123812 A EP98123812 A EP 98123812A EP 0924074 B1 EP0924074 B1 EP 0924074B1
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EP
European Patent Office
Prior art keywords
lead
metering system
metering
coating liquid
feed
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.)
Expired - Lifetime
Application number
EP98123812A
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German (de)
English (en)
Other versions
EP0924074A1 (fr
Inventor
Reinhold Guba
Guido Reschke
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 AG
Original Assignee
MAN Roland Druckmaschinen 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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0924074A1 publication Critical patent/EP0924074A1/fr
Application granted granted Critical
Publication of EP0924074B1 publication Critical patent/EP0924074B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08—Print finishing devices, e.g. for glossing prints

Definitions

  • the invention relates to a device for dosing a coating liquid for substrates in a printing press according to the preamble of the main claim.
  • Another device is from DE 43 34 803 C1, preferably for painting units in the printing press.
  • a Painting unit designed as a processing unit and has a sheet guide cylinder as an impression cylinder, a forme cylinder and an application roller on.
  • two dosing systems are interchangeably assigned to the forme cylinder, such that the optionally two rollers as the applicator roller and metering roller Forme cylinders are assigned or a chambered doctor blade with a locked application roller is assigned to the forme cylinder.
  • a color circulation and washing system for a printing press is known. Two different colors can be fed from separate containers on the line side via a pouring spout into a roller gap.
  • the nip is formed by two ink rollers arranged in parallel according to the squeeze roller principle, the ink rollers being assigned to a plate cylinder.
  • collecting troughs are arranged below the inking rollers, which connect a switching valve to the corresponding container for the respective ink on the line side via return lines.
  • the return of the paint takes place according to the principle of gravity back into the corresponding collecting container.
  • Cleaning fluid can be fed into the feed lines and return lines via a plurality of switching valves via a separate feed line.
  • DE-U-83 27 396 discloses a color return device in an inking unit known a printing press.
  • the inking unit has a one Anilox roller and a metering system formed on inking system.
  • the in Inking unit e.g. a flushing ink unit, excess printing ink is by means of at least one telescopically displaceable color return channel dissipated to at least one paint tank.
  • the invention has for its object a device of the beginning to create described type that avoids the disadvantages mentioned, the the mixing of different coating liquids prevented and the consumption of coating liquid noticeable reduced.
  • the object is achieved by the training features of claim 1 solved. Further training results from the dependent Claims.
  • a device consists of a for example a blanket or a flexible high-pressure plate-bearing form cylinder, which can be brought into contact with a sheet guide cylinder as a printing cylinder. Furthermore, the device consists of an application roller which can be brought into contact with the forme cylinder and a metering system which can be brought into contact with the application roller.
  • the metering system is either a chambered doctor blade which is functionally connected to a rastered application roller or a metering roller which is connected to the application roller, the coating liquid being supplied via the roller gap in the latter metering system.
  • a coating device has at least two separate circulation line systems for two coating liquids.
  • Each circuit system can optionally be brought into functional connection with a metering system, a feed line with a feed pump being arranged upstream of the metering system and at least one return line with suction pump and reservoir being arranged downstream of the metering system.
  • the feed lines can be connected to the respective dosing system in a manner that prevents them from being mixed up.
  • Dispersion varnishes on an aqueous basis, liquid printing inks with or without metal pigments and UV varnishes are particularly suitable as coating liquids for the inline processing of printing materials.
  • the dosing systems that can be used are interchangeable within a coating device.
  • a first metering system for the first coating liquid can thus be coupled to the associated circulatory system and a second metering system can be coupled to the associated circulatory system for the second coating liquid.
  • Each dosing system has at least one outlet for excess coating liquid.
  • At least two collecting containers are fixedly arranged within a coating device and are coupled to return lines.
  • the processes of the metering systems are arranged on them in such a way that they are optionally functionally connected to the first or the second, possibly further, collecting container.
  • the use of the dosing system with the appropriate procedure is determined. Differently arranged processes and their assignment to the corresponding collecting container ensure that every coating liquid flows within the intended circulation system. This prevents mixing of different coating liquids and reduces consumption.
  • the exchange of the respective metering system is not necessary if only the processes to the fixed collecting containers on the metering system can be exchanged or swiveled.
  • at least one outlet can be detached from the metering system and exchanged for another outlet with a different arrangement and is assigned to the corresponding collecting container.
  • the metering system is optionally detachably coupled to a feed line for a first coating liquid or a feed line for a second coating liquid. At least one detachably arranged outlet for the first coating liquid or at least one detachably arranged outlet for the second coating liquid is assigned to the metering system in an exchangeable manner.
  • the outlet (for the first coating liquid) is functionally connected to a collecting container which is coupled to a return line for the first coating liquid which has a suction pump.
  • the outlet (for the second coating liquid) is functionally connected to a collecting container which is connected to a return line for the second one which has a suction pump Coating liquid is coupled.
  • Each of the processes has circuit protection for the corresponding collection container.
  • the metering system has at least one outlet which is pivotally mounted.
  • the pivotable mounting preferably has latching positions into which the drain associated with the respective collecting container can be pivoted.
  • the metering system can be detachably and reliably connected to either a feed line for a first coating liquid or a feed line for a second coating liquid.
  • the metering system has at least one pivotally arranged outlet for the coating liquids to be processed.
  • the drain In swivel positions, the drain can optionally be brought into functional connection with a first collecting container which is coupled to a return line for the first coating liquid which has a suction pump, or the outlet can be brought into functional connection with a second collecting container which has a return line for the second one which has a suction pump Coating liquid is coupled, each pivot position of the drain has a circuit protection to the corresponding container.
  • the excess coating liquid in the supply line is sucked back out of the supply line into a suitable reservoir for holding the coating liquid. This furthermore avoids loss of coating liquid and at the same time noticeably reduces the consumption of coating liquid.
  • the supply line is cleaned with a cleaning fluid, the previous mixing of coating liquid and cleaning liquid being reduced and the consumption of cleaning fluid also being noticeably reduced.
  • Another advantage is that the cleaning time is significantly reduced. The cleaning system is ready for use with another coating liquid faster.
  • a printing press is provided with a plurality of printing units 1, preferably offset printing units, formed in series, with the arcuate in the conveying direction Substrates a first coating device 2 and a second coating device 3 are subordinate to the printing units 1. Between Coating devices 2, 3 are for drying the printing materials to be processed a dryer unit 4 is arranged. The second coating device 3 is a boom 5 downstream, which, among other things, by rotating Chain systems 7 is formed, which deposit the sheets on a delivery stack 6.
  • a printing unit 1 consists essentially of a plate cylinder 8, a Blanket cylinder 9 and a sheet guide cylinder 11, here a printing cylinder. An inking unit is assigned to the plate cylinder 8; Dampening unit adjacent to the plate cylinder 8, but this is not discussed in detail here shall be. Between the printing units 1 and the coating devices 2, 3 and the dryer device 4 are each a sheet guide cylinder 10 arranged as a transfer cylinder for the transport of the printing materials.
  • the first coating device 2 is a coating unit, e.g. for processing Dispersion varnish with pigments on an aqueous basis, formed and consists of a sheet guide cylinder 11 (impression cylinder), one with the sheet guide cylinder 11 contactable forme cylinder 12, which is a flexible high pressure plate as a lacquer form, and a first metering system 13.
  • the first metering system 13 is by a gridable with the forme cylinder 12 in contact Applicator roller 30 and a functionally connected to the applicator roller 30 Chamber doctor blade 27 formed.
  • the second coating device 3 is also a coating unit, e.g. For processing of water-based dispersion varnish and consists of a Sheet guide cylinder 11 (impression cylinder), one with the sheet guide cylinder 11 contactable forme cylinder 12, which carries a rubber blanket and one second metering system 14.
  • the second metering system 14 is preferably by means of a the blanket-carrying form cylinder 12 contactable applicator roller 30 and a metering roller 32 are formed.
  • All metering systems 13, 14 are each with a separately controllable circulation system can be coupled for the circulation of coating liquids. So is an interchangeable first metering system 13 with the first circulation system for the first coating liquid can be coupled or a replaceable second dosing system 14 is with the second circulation system for the second coating liquid can be coupled in such a way that there is always a metering system 13, 14 within a coating device 2 or 3 is in operation.
  • the first metering system 13 chambered doctor blade 27, application roller 30
  • the first metering system 13 for the metering of the first coating liquid also by a second metering system 13 ', formed by a further chamber doctor blade 27' and applicator roller 30, interchangeable for the metering of the second coating liquid.
  • the two-roll mill (metering roll 32, applicator roll 30) is also a metering system 14 for a first coating liquid by a second metering system 14 'with metering roller 32' and applicator roller 30 for a second coating liquid interchangeable.
  • the metering roller 32 ′ faces the metering roller 32 a changed coating on the coating liquid to be processed is tuned to.
  • a dosing system 14 or 14 ' is also inside a coating device 2 or 3 by means of a metering system 13 or 13 ' interchangeable.
  • a first chamber doctor blade 27 is shown as the metering system 13 for the first coating liquid, which forms the metering system 13 with the application roller 30 with a grid structure.
  • a spacer line 28 is preferably assigned to the doctor blade 27.
  • the spacer line 28 is detachably connected to a feed line 20 for the first coating liquid by means of a mix-up-free coupling 29.
  • the feed line 20 opens into a reservoir 19 for receiving the first coating liquid, an adjustable feed pump 22 being coupled to the feed line 20.
  • the feed pump 22 can be used to deliver the first coating liquid to the metering system 13 and can also be switched as a suction pump in order to suck excess coating liquid back into the reservoir 19 from the feed line 20, including the distance line 28.
  • the chambered doctor blade 27 has drains 31 in the end region which are functionally connected to collecting containers 25, 26 for the first coating liquid.
  • the collecting containers 25, 26 are part of a fixedly arranged collecting system, which has further collecting containers 25 ', 26' for the second coating liquid.
  • the collecting containers 25, 26 are coupled to return lines 15, 16, which have suction pumps 17, 18, and open into the reservoir 19. If the second coating liquid is to be processed, the chamber doctor blade 27 is separated from the inactivated supply line 20, including the spacer line 28, and exchanged for the chamber doctor blade 27 '.
  • the chambered doctor blade 27 ' is coupled with a feed line 20' and preferably with a distance line 28 'and a coupling 29', which is connected to a reservoir 19 'for the second coating liquid with the interposition of a feed pump 22'.
  • the chambered doctor blade 27 ' is essentially identical to the chambered doctor blade 27, but has processes 31' which are functionally connected to the collecting containers 25 ', 26'.
  • the collecting containers 25 ', 26' are coupled to return lines 15 ', 16' with integrated suction pumps 17 ', 18' and are connected to the reservoir 19 '.
  • doctor blade 27 While the doctor blade 27 'is used in the metering process, the doctor blade 27 can be cleaned, for example, outside the coating device 2, 3 or maintenance work can be carried out.
  • 4 shows a two-roll mill with an application roller 30 and a metering roller 32.
  • side doctor blades 33 are arranged on both sides, which are coupled at least on one side to a detachably arranged outlet 31.
  • the outlet 31 is functionally connected to the processing of the first coating liquid with the collecting container 25 (on the opposite side, item 26), the collecting container 25, 26 analogously to the arrangement according to FIG. Fig. 2 are connected to the return line 15, 16, suction pumps 17, 18 and the reservoir 19.
  • an outlet 31 ' which is functionally connected to the collecting container 25' or 26 ', is detachably arranged at least on one end face of the roller gap.
  • the collecting containers 25 ', 26' are connected to return lines 15 ', 16', suction pumps 18 ', 17' and the reservoir 19 'for the second coating liquid.
  • the collecting system formed by the collecting containers 25, 25 'and 26, 26' is fixed arranged within the coating device 2, 3 and is connected to the return lines 15.15 'and 16.16' coupled.
  • the dosing system 13, 13 ', 14, 14' is exchanged as required.
  • the metering systems 13, 13 ' have drains 31, 31' which are arranged differently from the collecting system, so that the chamber doctor blade 27 for the first coating liquid with outlet 31 is also assigned to the collecting container 25 or 26 for the return of excess first coating liquid and the chamber doctor blade 27 'for the second coating liquid with outlet 31' is also assigned to the collecting container 25 'or 26' for the return of the excess second coating liquid.
  • the reservoir 19 is associated with a cleaning agent container 23, from which a cleaning fluid can be fed into the supply line 20 via a switching valve 21 on the line side.
  • a connecting line can be releasably inserted between the supply line 20 and the collecting container 25 or 26, which bridges the chamber doctor blade 27 which has meanwhile been removed.
  • the first circuit system can thus be cleaned, while the second coating liquid can be metered via the second circuit system with the exchanged chamber doctor blade 27 '.
  • the same principle can also be applied to the second circulatory system.
  • the reservoir 19 ' is assigned a cleaning agent container 23', from which the cleaning agent can be fed into the supply line 20 'from the line side via a switching valve 21'.
  • a connecting line can be detachably inserted between the feed line 20 'and the collecting container 25' or 26 'for bridging.
  • the second circuit system can thus be cleaned, while the first coating liquid can be metered via the first circuit system by means of the metering system 13 or 14 used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Coating Apparatus (AREA)
  • Ink Jet (AREA)

Claims (7)

  1. Dispositif pour doser un liquide de revêtement pour des matières d'impression dans une machine d'impression, pour au moins une unité de revêtement (2, 3), formée par un cylindre de contre-pression (11), un cylindre porte-cliché (12), au moins un rouleau d'application (30) avec un système de dosage (13, 14) pouvant être approché et écarté de façon associée, auquel sont associés deux systèmes de circuit pouvant être commandés de façon séparée ayant des pompes (22, 22', 17, 17', 18, 18') avec, à chaque fois, un conduit d'amenée (20) et au moins un conduit de retour (15, 16) pour un premier liquide de revêtement reçu dans un réservoir (19), ainsi qu'un conduit d'amenée (20') et au moins un conduit de retour (15', 16') pour un second liquide de revêtement reçu dans un réservoir (19'),
    caractérisé en ce que le premier système de dosage (13, 14) peut être relié de façon amovible, sans risque de confusion, avec le premier conduit d'amenée (20), et est agencé de façon interchangeable contre un second système de dosage (13', 14') pouvant être relié de façon amovible, sans risque de confusion, à un second conduit d'amenée (20'), en ce que le premier système de dosage (13, 14) présente au moins une première évacuation (31) qui débouche dans un premier récipient de réception (25, 26) couplé au conduit de retour (15, 16) pour le premier liquide de revêtement, et en ce que le second système de dosage (13', 14') présente au moins une seconde évacuation 31' qui débouche dans un second récipient de réception (25', 26') couplé au conduit de retour (15', 16') pour le second liquide de revêtement.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que le système de dosage (13) pour le premier liquide de revêtement est formé par une première racle à chambre (27) et le rouleau d'application (30) à structure tramée, en ce qu'un premier conduit d'écartement (28) est agencé de façon amovible, du côté d'extrémité, sur la première racle à chambre (27) et peut être couplé au premier conduit d'amenée (20), sans risque de confusion, au moyen d'un premier accouplement (29), et en ce que le premier système de dosage (13) présente vis-à-vis du premier conduit d'amenée (20) et de la première évacuation (31) ayant le premier conduit de retour (15, 16) une sécurité par circuit séparée.
  3. Dispositif selon la revendication 1,
    caractérisé en ce que le système de dosage (13') pour le second liquide de revêtement est formé par une seconde racle à chambre (27') et le rouleau d'application (30) à structure tramée, en ce qu'un conduit d'écartement (28') est agencé de façon amovible, du côté d'extrémité, sur la seconde racle à chambre (27') et peut être couplé, sans risque de confusion, au second conduit d'amenée (20') au moyen d'un second accouplement (29'), et en ce que le second système de dosage (13') présente vis-à-vis du second conduit d'amenée (20') et de la seconde évacuation (25', 26') ayant le second conduit de retour (15', 16') une sécurité par circuit séparée.
  4. Dispositif selon la revendication 1,
    caractérisé en ce que le premier système de dosage (14) pour le premier liquide de revêtement est formé par un premier rouleau de dosage (32) et le rouleau d'application (30), en ce qu'un premier conduit d'écartement (28) est agencé, du côté d'extrémité, au-dessus de la fente de rouleaux (24) formée par les deux rouleaux (32, 30) et peut être couplé, sans risque de confusion, au moyen d'un premier accouplement (29), au premier conduit d'amenée (20), le premier système de dosage (14) présentant vis-à-vis du premier conduit d'amenée (20) et du premier récipient de réception (25, 26) ayant le premier conduit de retour (15, 16) une sécurité par circuit séparée.
  5. Dispositif selon la revendication 1,
    caractérisé en ce que le second système de dosage (14') pour le second liquide de revêtement est formé par un second rouleau de dosage (32') et le rouleau d'application (30), en ce qu'un second conduit d'écartement (28') est agencé, du côté d'extrémité, au-dessus de la fente de rouleaux (24) formée par les deux rouleaux (32', 30), et peut être couplé, sans risque de confusion, au moyen d'un second accouplement (29') au second conduit d'amenée (20'), le second système de dosage (14') présentant vis-à-vis du second conduit d'amenée (20') et du second récipient de réception (25', 26') ayant le second conduit de retour (15', 16') une sécurité par circuit séparée.
  6. Dispositif selon la revendication 1,
    caractérisé en ce que le conduit d'amenée (20, 20') dégagé après l'échange des systèmes de dosage (13, 13', 14, 14') et le récipient de réception dégagé associé (25, 25', 26, 26') peuvent être pontés au moyen d'un conduit de liaison pour amener en circulation un fluide de nettoyage, tandis que le conduit d'amenée (20, 20') d'un des systèmes de dosage (13, 13', 14, 14'), ainsi que le récipient de réception (25, 25', 26, 26') ayant le conduit de retour (15, 16, 15', 16'), sont activés pour doser un liquide de revêtement.
  7. Dispositif selon au moins la revendication 1,
    caractérisé en ce que le système de dosage (13, 13', 14, 14') présente, au choix, de façon interchangeable, au moins une première évacuation (31) agencée de façon amovible pour le premier liquide de revêtement ou une seconde évacuation (31') agencée de façon amovible pour le second liquide de revêtement, chaque évacuation (31, 31') présentant une sécurité par circuit vis-à-vis du récipient de réception correspondant (25, 26, 25', 26').
EP98123812A 1997-12-20 1998-12-15 Dispositif doseur d'un liquide de couchage pour supports d'impressions dans une machine à imprimer Expired - Lifetime EP0924074B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29722601U DE29722601U1 (de) 1997-12-20 1997-12-20 Einrichtung zum Dosieren einer Beschichtungsflüssigkeit für Bedruckstoffe in einer Druckmaschine
DE29722601U 1997-12-20

Publications (2)

Publication Number Publication Date
EP0924074A1 EP0924074A1 (fr) 1999-06-23
EP0924074B1 true EP0924074B1 (fr) 2002-03-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123812A Expired - Lifetime EP0924074B1 (fr) 1997-12-20 1998-12-15 Dispositif doseur d'un liquide de couchage pour supports d'impressions dans une machine à imprimer

Country Status (4)

Country Link
EP (1) EP0924074B1 (fr)
JP (1) JP3337432B2 (fr)
AT (1) ATE214333T1 (fr)
DE (2) DE29722601U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29913778U1 (de) * 1999-08-06 1999-09-30 Roland Man Druckmasch Beschichtungseinrichtung in einer Druckmaschine
DE10246946B4 (de) 2001-11-07 2013-06-13 Heidelberger Druckmaschinen Ag Einrichtung zum Beschichten von Bedruckstoffen in einer Druckmaschine
DE10257373A1 (de) 2002-01-31 2003-08-14 Heidelberger Druckmasch Ag Beschichtungssystem zum Beschichten von Bedruckstoffen
CN101722716B (zh) 2008-10-27 2014-06-25 海德堡印刷机械股份公司 承印物涂覆系统以及用于该系统的运行方法
KR20190084357A (ko) 2010-10-18 2019-07-16 엑스제트 엘티디. 잉크젯 헤드 저장 및 청소

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135711A1 (de) * 1981-07-29 1983-02-10 Windmöller & Hölscher, 4540 Lengerich Spuelfarbwerk fuer eine rotationsdruckmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1531614A (fr) * 1967-05-24 1968-07-05 Holweg Const Mec Procédé d'encrage et encrage pour machines à imprimer en héliogravure et en héliogravure-report
DE8327396U1 (de) * 1983-09-23 1985-09-12 Koenig & Bauer AG, 8700 Würzburg Farbrücklaufvorrichtung für eine Rotationsdruckmaschine
JP3592788B2 (ja) * 1995-04-27 2004-11-24 三菱重工業株式会社 フレキソ印刷機のインキ交換方法
DE19515621A1 (de) * 1995-04-28 1996-10-31 Fischer & Krecke Gmbh & Co Farbwerksystem für Druckmaschinen
DE29616686U1 (de) * 1996-09-25 1996-11-14 MAN Roland Druckmaschinen AG, 63075 Offenbach Einrichtung zum Beschichten von Bedruckstoffen mit einer Flüssigkeit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135711A1 (de) * 1981-07-29 1983-02-10 Windmöller & Hölscher, 4540 Lengerich Spuelfarbwerk fuer eine rotationsdruckmaschine

Also Published As

Publication number Publication date
DE59803326D1 (de) 2002-04-18
DE29722601U1 (de) 1998-02-12
JPH11342593A (ja) 1999-12-14
EP0924074A1 (fr) 1999-06-23
ATE214333T1 (de) 2002-03-15
JP3337432B2 (ja) 2002-10-21

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