EP0635366B1 - Method and means for applying a liquid on a printing surface in an offset printing machine - Google Patents
Method and means for applying a liquid on a printing surface in an offset printing machine Download PDFInfo
- Publication number
- EP0635366B1 EP0635366B1 EP94111145A EP94111145A EP0635366B1 EP 0635366 B1 EP0635366 B1 EP 0635366B1 EP 94111145 A EP94111145 A EP 94111145A EP 94111145 A EP94111145 A EP 94111145A EP 0635366 B1 EP0635366 B1 EP 0635366B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- functional module
- bearing
- metering
- applicator roller
- 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
Links
- 238000007639 printing Methods 0.000 title claims abstract description 19
- 238000007645 offset printing Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000010073 coating (rubber) Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910000906 Bronze Inorganic materials 0.000 abstract description 3
- 239000010974 bronze Substances 0.000 abstract description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002966 varnish Substances 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000000976 ink Substances 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 description 10
- 238000010422 painting Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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 working method and a device for applying a liquid medium to a printing material in offset printing machines.
- the device is suitable for processing low-viscosity as well as higher-viscosity media such as Water-based dispersion varnish (low viscosity with a viscosity ⁇ 0.1 Pa s) or bronze and effect printing ink with a certain pigment content (higher viscosity with a viscosity of 0.1 to 2 Pas), e.g. Gold lacquer.
- liquid media According to DE 3 427 898 C1, the medium to be applied is metered by means of a metering roller and applicator roller according to the squeeze roller principle, the liquid, e.g. Paint is fed through the roller nip thus formed by means of a tube over a paint wedge.
- the liquid e.g. Paint
- a chambered doctor blade is known from EP 0 071 180 A1, which is essentially formed by a housing with side walls and doctor blades attached to the housing, also called doctor blades.
- the doctor blades are supported on the application roller and the liquid is transferred to the screened application roller via the chamber formed in this way.
- the chambered doctor blade is pivotally mounted in a holder arranged above the application roller and can be adjusted to the application roller by a working cylinder acting on the holder.
- the invention is therefore based on the object of developing a solution which eliminates the disadvantages mentioned.
- the solution according to the invention permits the rapid change of metering roller and chamber doctor blade in combination with the respective application roller as function blocks in an offset printing machine.
- the first function block is used when processing low-viscosity media ( ⁇ 0.1 Pa s).
- An applicator roller rubber coating or steel
- a metering roller steel or rubber coating
- the second function block is used when processing higher-viscosity media (> 0.1 to 2 Pa s).
- a rastered application roller is then used in the above-mentioned eccentric bearings and a chambered doctor blade in the storage for the metering roller.
- the eccentric bearings for the first function module (applicator roller / metering roller) thus simultaneously serve to accommodate the second function module (rastered applicator roller / chamber doctor blade) after the first function module has been replaced from the bearings.
- the pressure is supplied to the applicator roller via a single auxiliary storage (for the metering roller or the chamber doctor blade). This enables economical processing of liquid media in the inline operation of an offset printing machine.
- the device can be converted to the processing of the respective medium in a short time and ensures exact dosing of the liquids.
- the device can be the first printing unit of an offset printing machine for print finishing, e.g. Painting, top coat application, upstream, arranged between the printing units or arranged downstream of the printing units.
- the solution according to the invention is suitable for spot painting (recessed painting) and for full-area painting.
- a further finishing device can be arranged upstream or downstream of the device according to the invention, e.g. another painting unit for full-surface painting or a laminating or embossing device.
- the device according to the invention is arranged downstream of the last printing unit in an offset printing press and is used for inline coating of printing materials.
- the device consists of a sheet-guiding cylinder 1, to which a forme cylinder 2 is assigned.
- An application roller 3 is assigned to the forme cylinder 2.
- a metering roller 4 or a chambered doctor blade 5 is optionally assigned to the applicator roller 3.
- Cylinder 1, forme cylinder 2, applicator roller 3, metering roller 4 and chamber doctor blade 5 are mounted in side frames 19, the metering roller 4, the applicator roller 3 and the forme cylinder 2 being accommodated in eccentric bearings 7, 21.
- Metering roller 4 and applicator roller 3 are each accommodated in two-part bearings 7, 21, so that the upper parts are detachably positively connected to the lower parts of the bearings 7, 21 fastened in the side frames 19.
- the bearings 7 of the metering roller 4 are each designed as an auxiliary bearing 7 in the form of an eccentric bearing.
- An adjusting means 20, for example a working cylinder, is provided on the auxiliary bearing 7 for the provision of pressure (Druckan / Druckab).
- a swivel bearing 6 is arranged on both sides in the side frames 19 as a bearing for the doctor blade 5.
- the chambered doctor blade 5 is detachably attached to a frame 15, for example consisting of supports 8 and struts 14, by means of quick-release fasteners.
- the carriers 8 are arranged on the circular crossmember 12, the crossmember 12 and the bearing plates 13 each forming a pivot bearing acting as a swivel joint.
- a coupling 9 is articulated on the frame 15 on both sides in a swivel joint 10.
- the coupling 9 is also rotatably articulated on each auxiliary bearing 7, which otherwise also accommodate the metering roller 4.
- the chambered doctor blade 5 attached to the frame 15 has a positively positioned closing doctor blade 17 and a negatively employed working doctor blade 16 for a rastered application roller 3 '.
- the working doctor blade 16 is supported on the circumference of the rastered application roller 3' at an engagement point 18 which is at the level of the center of the bearing 22, on line 23, the eccentric bearing of the applicator roller 3 '.
- the chambered doctor blade 5 has a device for feeding and discharging the medium to be processed, which is not described further here.
- the form cylinder 2 can thus be assigned two function blocks.
- the first function block is formed by the metering roller 4 in steel and the application roller 3 in rubber coating.
- the form cylinder 2 carries, for example, a rubber blanket for full-surface painting.
- the metering roller 4 can be provided with a rubber coating and the applicator roller 3 is made of steel.
- the forme cylinder 2 carries a flexographic printing plate or a recessed blanket for recessed painting (spot painting).
- the second function block is formed by the chambered doctor blade 5, frame 15, pivot bearing 6 and an applicator roller 3 'with a raster cup structure.
- the screened application roller 3 ' is e.g. executed in ceramic.
- the device works as follows: If a conventional, low-viscosity varnish is processed, the first function block is used.
- Metering roller 4 and applicator roller 3 receive the lacquer to be processed in the nip 11 via a feed tube, not shown, so that a lacquer wedge forms therein.
- the eccentric auxiliary bearing 7 is pivoted in such a way that the metering roller 4 engages or disengages from the application roller 3 in the pressure setting or pressure setting.
- the metering takes place according to the squeeze roller principle and the application roller 3 conveys the lacquer to the forme cylinder 2, which transfers the lacquer to the printing material in connection with the impression cylinder 1.
- the second function module is used. To do this, the upper part of the auxiliary bearing 7 is to be loosened and the metering roller 4 is removed. The paint supply tube is removed above the nip 11 and the upper part of the bearing 21 of the applicator roller 3 is opened so that the roller 3 can also be removed. A rastered applicator roller 3 'is placed in the applicator roller bearing 21 of the applicator roller 3 and the upper part of the bearing 21 is connected to the lower part. The coupling 9 with frame 15 and chamber doctor blade 5 is inserted into the auxiliary bearing 7 and the upper part of the auxiliary bearing 7 is connected to the lower part.
- a higher-viscosity lacquer such as bronze or effect printing ink
- the chamber doctor blade is coupled with a lacquer feed and a lacquer discharge.
- the chambered doctor blade 5 is supplied to the applicator roller 3 'via the adjusting means 20 arranged on the auxiliary bearing 7 (Druckan / Druckab).
- the working doctor blade 16 engages at the height (line 23) of the bearing center 22 of the applicator roller 3 ' the circumference at the point of engagement 18 in order to change the engagement conditions when adjusting the eccentric bearing 21 of the roller 3 as little as possible.
- the cross member 12 can remain in the bearing plate 13 of the pivot bearing 6 and the coupling 9, frame 15 and chamber doctor blade 5 are pivoted into a parking position above the auxiliary bearing 7 and locked there.
- the rastered applicator roller 3 ' is also removed from its storage 21 and an applicator roller 3, for example made of steel, is inserted and fixed.
- the metering roller 4 is supplied to the application roller 3 via the adjusting means 20 arranged on the eccentric auxiliary bearing 7 (Druckan / Druckab). Previously, the paint feed pipe was positioned again over the nip 11 and coupled to a feed line.
- the metering roller 4 has a separate drive which is coupled to the application roller 3.
- two freewheels are arranged on the axis. One freewheel is coupled to the separate drive of the metering roller 4 and the other freewheel is coupled to the wheel train of the printing press (drive).
- the drive of the printing machine overtakes the separate drive of the metering roller 4.
- the drive is decoupled from the machine (stopped) and the separate drive drives the applicator roller 3 further. This prevents the paint from drying on the roller surface.
- the procedure is analogous, since the drive is only coupled to the bearings 7, 21.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Printing Plates And Materials Therefor (AREA)
- Printing Methods (AREA)
Abstract
Description
Die Erfindung betrifft ein Arbeitsverfahren und eine Einrichtung zum Aufbringen eines flüssigen Mediums auf einen Bedruckstoff in Offsetdruckmaschinen. Die Einrichtung ist geeignet für die Verarbeitung niedrigviskoser als auch höherviskoser Medien wie z.B. Dispersionslack auf wässriger Basis (niedrigviskos mit einer Viskosität ≤ 0,1 Pa s) oder Bronze- und Effektdruckfarbe mit einem bestimmten Pigmentanteil (höherviskos mit einer Viskosität von 0,1 bis 2 Pas), wie z.B. Goldlack.The invention relates to a working method and a device for applying a liquid medium to a printing material in offset printing machines. The device is suitable for processing low-viscosity as well as higher-viscosity media such as Water-based dispersion varnish (low viscosity with a viscosity ≤ 0.1 Pa s) or bronze and effect printing ink with a certain pigment content (higher viscosity with a viscosity of 0.1 to 2 Pas), e.g. Gold lacquer.
Zum Auftragen flüssiger Medien sind verschiedene Lösungen bekannt. Gemäß der DE 3 427 898 C1 erfolgt die Dosierung des aufzutragenden Mediums mittels Dosierwalze und Auftragwalze nach dem Quetschwalzenprinzip, wobei die Flüssigkeit, z.B. Lack, über den so gebildeten Walzenspalt mittels Rohr über einen Lackkeil zugeführt wird.Various solutions are known for applying liquid media. According to DE 3 427 898 C1, the medium to be applied is metered by means of a metering roller and applicator roller according to the squeeze roller principle, the liquid, e.g. Paint is fed through the roller nip thus formed by means of a tube over a paint wedge.
Aus der EP 0 071 180 A1 ist eine Kammerrakel bekannt, die im wesentlichen durch ein Gehäuse mit Seitenwänden und am Gehäuse befestigte Rakelblätter, auch Rakelmesser genannt, gebildet wird. Die Rakelblätter stützen sich auf der Auftragwalze ab und über die so gebildete Kammer wird die Flüssigkeit auf die gerasterte Auftragwalze übertragen. Die Kammerrakel ist dabei in einer oberhalb der Auftragwalze angeordneten Halterung schwenkbar gelagert und durch einen an die Halterung einwirkenden Arbeitszylinder an die Auftragwalze anstellbar.A chambered doctor blade is known from EP 0 071 180 A1, which is essentially formed by a housing with side walls and doctor blades attached to the housing, also called doctor blades. The doctor blades are supported on the application roller and the liquid is transferred to the screened application roller via the chamber formed in this way. The chambered doctor blade is pivotally mounted in a holder arranged above the application roller and can be adjusted to the application roller by a working cylinder acting on the holder.
Nachteilig bei diesen Lösung ist es, daß diese bei unterschiedlich viskosen Medien keine exakte Dosierung des aufzutragenden Mediums gewährleisten. Somit sind die bekannten Lösungen nicht universell zum Aufbringen der jeweils verwendeten Flüssigkeit auf den Bedruckstoff einsetzbar.The disadvantage of this solution is that it is different viscous media do not guarantee exact dosing of the medium to be applied. Thus, the known solutions cannot be used universally for applying the liquid used in each case to the printing material.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Lösung zu entwickeln, die die genannten Nachteile beseitigt.The invention is therefore based on the object of developing a solution which eliminates the disadvantages mentioned.
Gelöst wird dies durch den kennzeichnenden Teil der Ansprüche 1 und 2. Weiterbildungen ergeben sich aus den Unteransprüchen.This is solved by the characterizing part of
Die erfindungsgemäße Lösung gestattet den Schnellwechsel von Dosierwalze und Kammerrakel in Kombination mit der jeweiligen Auftragwalze als Funktionsbausteine in einer Offsetdruckmaschine.The solution according to the invention permits the rapid change of metering roller and chamber doctor blade in combination with the respective application roller as function blocks in an offset printing machine.
Bei Verarbeitung niedrigviskoser Medien (≤ 0,1 Pa s) kommt der erste Funktionsbaustein zum Einsatz. In die seitlich fixierten exzentrischen Lagerungen für Auftragwalze und Dosierwalze wird jeweils eine Auftragwalze (Gummibeschichtung oder Stahl) und eine Dosierwalze (Stahl oder Gummibeschichtung) eingesetzt.The first function block is used when processing low-viscosity media (≤ 0.1 Pa s). An applicator roller (rubber coating or steel) and a metering roller (steel or rubber coating) are inserted into the laterally fixed eccentric bearings for applicator roller and metering roller.
Bei Verarbeitung höherviskoser Medien (> 0,1 bis 2 Pa s) kommt der zweite Funktionsbaustein zum Einsatz. In die oben genannten exzentrischen Lagerungen werden dann eine gerasterte Auftragwalze eingesetzt und in die Lagerung für die Dosierwalze eine Kammerrakel. Die exzentrischen Lagerungen für den ersten Funktionsbaustein (Auftragwalze/Dosierwalze) dienen somit gleichzeitig der Aufnahme des Zweiten Funktionsbausteines (gerasterte Auftragwalze/Kammerrakel) nachdem der erste Funktionsbaustein aus den Lagerungen ausgetauscht wurde. Über ein einziges Beistellager (für die Dosierwalze oder die Kammerrakel) erfolgt die Druckbeistellung zur Auftragwalze. Dadurch wird eine wirtschaftliche Verarbeitung flüssiger Medien im Inline-Betrieb einer Offsetdruckmaschine möglich. Die Einrichtung ist in kurzer Zeit auf die Verarbeitung des jeweiligen Mediums umrüstbar und gewährleistet eine exakte Dosierung der Flüssigkeiten.The second function block is used when processing higher-viscosity media (> 0.1 to 2 Pa s). A rastered application roller is then used in the above-mentioned eccentric bearings and a chambered doctor blade in the storage for the metering roller. The eccentric bearings for the first function module (applicator roller / metering roller) thus simultaneously serve to accommodate the second function module (rastered applicator roller / chamber doctor blade) after the first function module has been replaced from the bearings. The pressure is supplied to the applicator roller via a single auxiliary storage (for the metering roller or the chamber doctor blade). This enables economical processing of liquid media in the inline operation of an offset printing machine. The device can be converted to the processing of the respective medium in a short time and ensures exact dosing of the liquids.
Die Einrichtung kann dabei dem ersten Druckwerk einer Offsetdruckmaschine zur Druckveredelung, z.B. Lackieren, Deckschichtenauftrag, vorgeordnet, zwischen den Druckwerken angeordnet oder den Druckwerken nachgeordnet sein. Die erfindungsgemäße Lösung eignet sich zur Spotlackierung (ausgespartes Lackieren) und zum vollflächigen Lackieren. Ebenso kann der erfindungsgemäßen Einrichtung eine weitere Veredelungseinrichtung vor- oder nachgeordnet sein, z.B. eine weitere Lackiereinheit zum vollflächigen Lackieren oder eine Kaschier- oder Prägeeinrichtung.The device can be the first printing unit of an offset printing machine for print finishing, e.g. Painting, top coat application, upstream, arranged between the printing units or arranged downstream of the printing units. The solution according to the invention is suitable for spot painting (recessed painting) and for full-area painting. Likewise, a further finishing device can be arranged upstream or downstream of the device according to the invention, e.g. another painting unit for full-surface painting or a laminating or embossing device.
Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail using an exemplary embodiment.
Dabei zeigt:
- Fig. 1
- den prinzipiellen Aufbau der Einrichtung, wobei Dosierwalze und Kammerrakel überlagert dargestellt sind,
- Fig. 2
- die Einrichtung für die Verarbeitung höherviskoser Medien (Seitenansicht),
- Fig. 3
- die Lagerung der Kammerrakel (Vorderansicht).
- Fig. 1
- the basic structure of the device, the metering roller and chamber doctor blade are shown superimposed,
- Fig. 2
- the device for processing high-viscosity media (side view),
- Fig. 3
- the storage of the chamber doctor blade (front view).
In einer Offsetdruckmaschine ist dem letzten Druckwerk die erfindungsgemäße Einrichtung nachgeordnet und dient der Inline-Lackierung von Bedruckstoffen. Die Einrichtung besteht dabei aus einem bogenführenden Zylinder 1, dem ein Formzylinder 2 zugeordnet ist. Dem Formzylinder 2 ist eine Auftragwalze 3 zugeordnet. An die Auftragwalze 3 beistellbar ist wahlweise eine Dosierwalze 4 oder eine Kammerrakel 5 zugeordnet. Zylinder 1, Formzylinder 2, Auftragwalze 3, Dosierwalze 4 und Kammerrakel 5 sind in Seitengestellen 19 gelagert, wobei die Dosierwalze 4, die Auftragwalze 3 und der Formzylinder 2 in exzentrischen Lagern 7, 21 aufgenommen sind. Dosierwalze 4 und Auftragwalze 3 sind jeweils in zweiteilig ausgebildeten Lagerungen 7, 21 aufgenommen, so daß die Oberteile lösbar formschlüssig mit den in den Seitengestellen 19 befestigten Unterteilen der Lagerungen 7, 21 verbunden sind. Die Lagerungen 7 der Dosierwalze 4 ist als je ein Beistellager 7 in Form eines Exzenterlagers ausgeführt. Am Beistellager 7 ist ein Stellmittel 20, z.B. ein Arbeitszylinder, zur Druckbeistellung (Druckan/Druckab) angeordnet. Oberhalb eines von Dosierwalze 4 und Auftragwalze 3 gebildeten Walzenspaltes ist beidseitig in den Seitengestellen 19 ein Schwenklager 6 als Lagerung für die Kammerrakel 5 angeordnet. Die Kammerrakel 5 ist an einem Rahmen 15, z.B. bestehend aus Trägern 8 und Streben 14, mittels Schnellverschlüssen lösbar befestigt. Die Träger 8 sind an der kreisförmig ausgebildeten Traverse 12 angeordnet, wobei die Traverse 12 und die Lagerplatten 13 jeweils ein als Drehgelenk wirkendes Schwenklager bilden. Am Rahmen 15 ist beidseitig in je einem Drehgelenk 10 eine Koppel 9 angelenkt. Die Koppel 9 ist weiterhin drehbar an jedem Beistellager 7 angelenkt, welche sonst auch die Dosierwalze 4 aufnehmen. Die am Rahmen 15 befestigte Kammerrakel 5 besitzt zu einer gerasterten Auftragwalze 3' ein positiv angestelltes Schließrakelblatt 17 und ein negativ angestelltes Arbeitsrakelblatt 16. Dabei stützt sich das Arbeitsrakelblatt 16 am Umfang der gerasterten Auftragwalze 3' an einem Eingriffspunkt 18 ab, der in Höhe der Lagermitte 22, auf der Linie 23, der exzentrischen Lagerung der Auftragwalze 3' liegt. Die Kammerrakel 5 besitzt eine Einrichtung zum Zuführen und Abführen des jeweils zu verarbeitenden Mediums, welche hier nicht weiter beschrieben wird. Den Formzylinder 2 sind somit zwei Funktionsbausteine zuordbar.The device according to the invention is arranged downstream of the last printing unit in an offset printing press and is used for inline coating of printing materials. The device consists of a sheet-guiding
Der erste Funktionsbaustein wird gebildet durch die Dosierwalze 4 in Stahlausführung und die Auftragwalze 3 in Gummibeschichtung. Der Formzylinder 2 trägt z.B. ein Gummituch zum vollflächigen Lackieren. Ebenso kann die Dosierwalze 4 mit einer Gummibeschichtung versehen sein und die Auftragwalze 3 ist in Stahl ausgeführt. Der Formzylinder 2 trägt dabei eine Flexodruckplatte oder ein ausgespartes Gummituch zum ausgesparten Lackieren (Spotlackierung).The first function block is formed by the metering roller 4 in steel and the application roller 3 in rubber coating. The form cylinder 2 carries, for example, a rubber blanket for full-surface painting. Likewise, the metering roller 4 can be provided with a rubber coating and the applicator roller 3 is made of steel. The forme cylinder 2 carries a flexographic printing plate or a recessed blanket for recessed painting (spot painting).
Der zweite Funktionsbaustein wird gebildet durch die Kammerrakel 5, Rahmen 15, Schwenklager 6 und einer Auftragwalze 3' mit Rasternäpfenstruktur. Die gerasterte Auftragwalze 3' ist z.B. in Keramik ausgeführt.The second function block is formed by the
Die Wirkungsweise der Einrichtung ist wie folgt: Wird ein herkömmlicher, niedrigviskoser Lack verarbeitet, so kommt der erste Funktionsbaustein zum Einsatz. Dosierwalze 4 und Auftragwalze 3 erhalten über ein nicht gezeigtes Zuführrohr den zu verarbeitenden Lack in den Walzenspalt 11, so daß sich darin ein Lackkeil bildet. Mittels Stellmittel 20 wird das exzentrische Beistellager 7 verschwenkt, derart, daß die Dosierwalze 4 in Druckanstellung bzw. Druckabstellung mit der Auftragwalze 3 in Eingriff kommt bzw. außer Eingriff. Die Dosierung erfolgt nach dem Quetschwalzenprinzip und die Auftragwalze 3 fördert den Lack zum Formzylinder 2, welcher den Lack auf den Bedruckstoff in Verbindung mit dem Gegendruckzylinder 1 überträgt.The device works as follows: If a conventional, low-viscosity varnish is processed, the first function block is used. Metering roller 4 and applicator roller 3 receive the lacquer to be processed in the
Soll ein Auftrag mit höherviskosem Lack, wie z.B. Bronze- oder Effektdruckfarbe, bearbeitet werden, so kommt der zweite Funktionsbaustein zum Einsatz. Dazu ist das Oberteil des Beistellagers 7 zu lösen und die Dosierwalze 4 wird herausgenommen. Das Lackzuführungsrohr wird über dem Walzenspalt 11 entfernt und das Oberteil der Lagerung 21 der Auftragwalze 3 wird geöffnet, so daß die Walze 3 ebenfalls entfernt werden kann. In die Auftragwalzenlagerung 21 der Auftragwalze 3 wird eine gerasterte Auftragwalze 3' eingelegt und das Oberteil der Lagerung 21 wird mit dem Unterteil verbunden. In das Beistellager 7 wird die Koppel 9 mit Rahmen 15 und Kammerrakel 5 eingesetzt und das Oberteil des Beistellagers 7 wird mit dem Unterteil verbunden. Vorher wird der Rahmen 15 mit der Traverse 12 in das Schwenklager 6 eingelegt. Die Kammerrakel wird mit einer Lackzuführung und einer Lackabführung gekoppelt. Über das am Beistellager 7 angeordnete Stellmittel 20 wird die Kammerrakel 5 zur Auftragwalze 3' beigestellt (Druckan/Druckab). Das Arbeitsrakelblatt 16 greift dabei in Höhe (Linie 23) der Lagermitte 22 der Auftragwalze 3' an deren Umfang im Eingriffspunkt 18 an, um die Eingriffsverhältnisse beim Verstellen des exzentrischen Lagers 21 der Walze 3 möglichst wenig zu verändern.If an order is to be processed with a higher-viscosity lacquer, such as bronze or effect printing ink, the second function module is used. To do this, the upper part of the
Soll nach dem Einsatz des höherviskosen Lackes wieder niedrigviskoser Lack verarbeitet werden, so wird das Oberteil des Beistellagers 7 entfernt und die Koppel 9 mit Rahmen 15 und Kammerrakel 5 herausgenommen. Vorher wird die Kammerrakel 5 entleert und die Versorgungsleitungen werden entkoppelt.If, after the use of the higher-viscosity lacquer, low-viscosity lacquer is to be processed again, the upper part of the
In einer weiteren Ausbildung kann die Traverse 12 in der Lagerplatte 13 des Schwenklagers 6 verbleiben und die Koppel 9, Rahmen 15 und Kammerrakel 5 werden in eine Parkposition oberhalb des Beistellagers 7 verschwenkt und dort arretiert. Die gerasterte Auftragwalze 3' wird ebenfalls aus ihrer Lagerung 21 entnommen und eine Auftragwalze 3, z.B. in Stahlausführung, wird eingesetzt und fixiert. In das Beistellager 7 wird die Dosierwalze 4 eingesetzt, die vorher z.B. in einer Walzenhalterung am Maschinengehäuse abgelegt (geparkt) war. Die Dosierwalze 4 wird über das am exzentrischen Beistellager 7 angeordnete Stellmittel 20 zur Auftragwalze 3 beigestellt (Druckan/Druckab). Vorher wurde das Lackzuführungsrohr wieder über den Walzenspalt 11 positioniert und mit einer Zuführungsleitung gekoppelt. Die Dosierwalze 4 hat einen separaten Antrieb, der mit der Auftragwalze 3 gekoppelt ist. An der Auftragwalze 3 sind auf der Achse zwei Freiläufe angeordnet. Ein Freilauf ist gekoppelt mit dem separaten Antrieb der Dosierwalze 4 und der andere Freilauf ist gekoppelt mit dem Räderzug der Druckmaschine (Eintrieb). Bei Druckanstellung überholt der Eintrieb der Druckmaschine den separaten Eintrieb der Dosierwalze 4. Bei Druckabstellung ist der Eintrieb von der Maschine entkoppelt (stillgesetzt) und der separate Eintrieb treibt die Auftragwalze 3 weiter an. Damit wird das Antrocknen des Lackes auf der Walzenoberfläche verhindert. Bei Verwendung des Kammerrakels 5 wird analog verfahren, da der Antrieb nur mit den Lagerungen 7, 21 gekoppelt ist.In a further embodiment, the
- 11
- bogenführender Zylinderbow-guiding cylinder
- 22nd
- FormzylinderForme cylinder
- 33rd
- AuftragwalzeApplicator roller
- 3'3 '
- gerasterte Auftragwalzescreened application roller
- 44th
- DosierwalzeDosing roller
- 55
- KammerrakelChamber squeegee
- 66
- SchwenklagerSwivel bearing
- 77
- BeistellagerAuxiliary storage
- 88th
- Trägercarrier
- 99
- KoppelPaddock
- 1010th
- DrehgelenkSwivel
- 1111
- WalzenspaltNip
- 1212th
- Traversetraverse
- 1313
- LagerplatteBearing plate
- 1414
- Strebestrut
- 1515
- Rahmenframe
- 1616
- ArbeitsrakelblattWorking doctor blade
- 1717th
- SchließrakelblattClosing doctor blade
- 1818th
- EingriffspunktPoint of intervention
- 1919th
- SeitengestellSide frame
- 2020th
- StellmittelPositioning means
- 2121
- WalzenlagerungRoller storage
- 2222
- LagermitteCenter of the warehouse
- 2323
- Linieline
Claims (11)
- Method for applying a liquid medium to material to be printed in offset printing presses using an impression cylinder, a forme cylinder and an applicator roller, characterised in that for metering the medium, the pressure adjustment of a metering roll or of a chamber doctor relative to an applicator roll takes place via the same eccentric bearing.
- Device for carrying out the process according to Claim 1, characterised in that the device contains a first functional module, a second functional module and eccentric adjustable bearings (7) and roller bearings (21) which are arranged in side frames (19) of the offset printing press wherein exchangeably arrangeable relative to the forme cylinder (2) in the same eccentric bearings (7, 21) is the first functional module (3, 4) for working with low viscosity media or the second functional module for working with higher viscosity media.
- Device according to Claim 2, characterised in that the first functional module consists of at least an applicator roller (3) and a metering roller (4) and the second functional module is constructed of at least a textured applicator roller (3') and a chamber doctor (5).
- Device for carrying out the process according to Claim 3, characterised in that the first functional module (3, 4)- is formed by the metering roller (4) constructed in steel and the applicator roller (3) with a rubber coating, wherein the forme cylinder (2) carries a blanket or- the metering roller (4) is formed with a rubber cover and the applicator roller (3) constructed in steel, wherein the forme cylinder (2) carries a flexoprinting plate.
- Device according to Claim 2, characterised in that the first functional module is constructed of a metering roller (4) arranged rotatably in an adjustable bearing (7), an applicator roller (3) arranged rotatably in the roller bearing (21), as well as a feed device arranged above the roller nip (11) and the second functional module consists of a textured applicator roller (3') rotatably arranged in the roller bearing (21) as well as a chamber doctor (5) rotatably arranged in the adjustable bearing (7) and a swivel bearing (6).
- Device according to Claim 3 to 5, characterised in that as a component of the second functional module, the chamber doctor (5) is releasably fixed to a frame (15) which, by means of cross-member (12) is rotatably received in swivel bearings (6) and is received rotatably in adjustable bearings (7) in each case via a pivot (10) by means of a link (9).
- Device according to Claim 3 to 6, characterised in that the chamber doctor (5) has a working doctor leaf (16) set negatively to the applicator roller (3), the point of application (18) of which lies on the line (23) running through the centre of the bearing (22) of the roller bearing (21) which is preferably a horizontal.
- Offset printing press with a device according to Claim 2 to 6 wherein the device is arranged prior to the printing units.
- Offset printing press with a device according to Claim 2 to 7 wherein the device is arranged between the printing units.
- Offset printing press with a device according to Claim 2 to 7 wherein the device is arranged subsequent to the printing units.
- Offset printing press according to Claim 8 to 10 wherein a further processing device is arranged before or after the device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4324631A DE4324631C2 (en) | 1993-07-22 | 1993-07-22 | Device for applying liquid media to a substrate in offset printing machines |
| DE4324631 | 1993-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0635366A1 EP0635366A1 (en) | 1995-01-25 |
| EP0635366B1 true EP0635366B1 (en) | 1997-09-10 |
Family
ID=6493459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94111145A Expired - Lifetime EP0635366B1 (en) | 1993-07-22 | 1994-07-18 | Method and means for applying a liquid on a printing surface in an offset printing machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5476042A (en) |
| EP (1) | EP0635366B1 (en) |
| JP (1) | JP2664018B2 (en) |
| AT (1) | ATE157935T1 (en) |
| DE (2) | DE4324631C2 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4344084C1 (en) * | 1993-12-23 | 1995-03-02 | Roland Man Druckmasch | Apparatus for metering fluid media of different viscosities in offset printing machines, preferably in varnishing units |
| DE19503695C2 (en) * | 1995-02-04 | 1997-02-27 | Roland Man Druckmasch | Protection for a printing press |
| US5630363A (en) | 1995-08-14 | 1997-05-20 | Williamson Printing Corporation | Combined lithographic/flexographic printing apparatus and process |
| DE19604761C2 (en) * | 1996-02-09 | 1998-02-26 | Windmoeller & Hoelscher | Glue application device |
| DE19613117A1 (en) * | 1996-04-02 | 1997-10-09 | Kba Planeta Ag | Commissioned work for printing machines |
| DE19629810A1 (en) * | 1996-07-24 | 1998-01-29 | Roland Man Druckmasch | Inker unit for rotary printer with roller and ink-container |
| DE19729977C2 (en) * | 1997-07-12 | 2001-12-06 | Roland Man Druckmasch | Offset printing unit for coating substrates in a rotary printing machine |
| DE19902957C2 (en) * | 1999-01-26 | 2003-05-28 | Roland Man Druckmasch | Dosing device on a rotary printing machine |
| DE19935170A1 (en) * | 1999-07-28 | 2001-02-01 | Koenig & Bauer Ag | Refinement processes |
| DE29913379U1 (en) * | 1999-07-30 | 1999-09-23 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Device for dosing a liquid medium in a printing press |
| DE102007003944A1 (en) * | 2007-01-26 | 2008-08-07 | Koenig & Bauer Aktiengesellschaft | Inking system for a rotary printing machine comprises a doctor blade unit positioned in the frame of a rotary printing machine and having a doctor blade which touches the surface of a roller in a contact line |
| DE102008046792A1 (en) * | 2007-09-20 | 2009-04-02 | Heidelberger Druckmaschinen Ag | Printing machine with bearer rings |
| CN112157988A (en) * | 2020-09-29 | 2021-01-01 | 东台世恒机械科技有限公司 | Gilding press and using method thereof |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2333962A (en) * | 1940-11-02 | 1943-11-09 | Thomas A Terry | Inking converter unit for job printing presses and the like |
| DE2345183C2 (en) * | 1973-09-07 | 1975-03-20 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Device for painting or the like. on a printing press |
| GB2012675B (en) * | 1978-01-20 | 1982-06-16 | Am Int | Double ink flow system |
| GB1601603A (en) * | 1978-04-13 | 1981-11-04 | Arthurs J | Roller assembly accessories for printing machines |
| GB2051688B (en) * | 1979-07-04 | 1983-02-02 | Estuary Automation Ltd | Foil attachament for a platen press |
| US4308796A (en) * | 1979-07-13 | 1982-01-05 | S-W-H, Ltd. | Offset lithographic press with ink metering system for blanket cylinder |
| DE3135711A1 (en) * | 1981-07-29 | 1983-02-10 | Windmöller & Hölscher, 4540 Lengerich | DISHWASHER FOR A ROTARY PRINTING MACHINE |
| DE3225564A1 (en) * | 1982-07-08 | 1984-01-12 | Werner 5760 Arnsberg Kroscky | Varnishing unit for an offset printing machine equipped with an impression unit |
| US4429631A (en) * | 1982-09-13 | 1984-02-07 | Suburban Duplicator Repair, Inc. | Auxiliary inking roller kit for duplicating press |
| JPS59142150A (en) * | 1983-02-03 | 1984-08-15 | Komori Printing Mach Co Ltd | Varnish coater for print |
| US4554869A (en) * | 1984-03-01 | 1985-11-26 | Ranno Sr Edward N | Auxiliary form roller apparatus for rotary offset lithographic duplicating machines |
| DE3427898C1 (en) * | 1984-07-28 | 1985-11-14 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Device for applying liquids, in particular coating unit for a printing press |
| DE3629081C1 (en) * | 1986-08-27 | 1988-03-24 | Roland Man Druckmasch | Convertible inking unit of a sheet-fed rotary printing press |
| US5154602A (en) * | 1990-07-23 | 1992-10-13 | Ward Holding Company, Inc. | Multiple ink roll system for flexographic printing stations |
| US5335596A (en) * | 1991-08-30 | 1994-08-09 | Howard W. DeMoore | Coating apparatus for sheet-fed, offset rotary printing presses |
| JP2597629Y2 (en) * | 1991-10-11 | 1999-07-12 | 株式会社小森コーポレーション | Roller holding device for printing press |
| US5265535A (en) * | 1991-12-28 | 1993-11-30 | Kabushiki Kaisha Isowa | Printing machine for corrugated board sheet |
-
1993
- 1993-07-22 DE DE4324631A patent/DE4324631C2/en not_active Expired - Fee Related
-
1994
- 1994-07-18 EP EP94111145A patent/EP0635366B1/en not_active Expired - Lifetime
- 1994-07-18 AT AT94111145T patent/ATE157935T1/en not_active IP Right Cessation
- 1994-07-18 DE DE59404009T patent/DE59404009D1/en not_active Expired - Fee Related
- 1994-07-21 JP JP6169689A patent/JP2664018B2/en not_active Expired - Fee Related
- 1994-07-22 US US08/279,236 patent/US5476042A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATE157935T1 (en) | 1997-09-15 |
| EP0635366A1 (en) | 1995-01-25 |
| DE4324631A1 (en) | 1995-01-26 |
| DE59404009D1 (en) | 1997-10-16 |
| US5476042A (en) | 1995-12-19 |
| JP2664018B2 (en) | 1997-10-15 |
| JPH07144405A (en) | 1995-06-06 |
| DE4324631C2 (en) | 1996-09-19 |
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