EP1707355B1 - Printing unit for a printing machine without dampening unit - Google Patents
Printing unit for a printing machine without dampening unit Download PDFInfo
- Publication number
- EP1707355B1 EP1707355B1 EP06116409A EP06116409A EP1707355B1 EP 1707355 B1 EP1707355 B1 EP 1707355B1 EP 06116409 A EP06116409 A EP 06116409A EP 06116409 A EP06116409 A EP 06116409A EP 1707355 B1 EP1707355 B1 EP 1707355B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing unit
- blanket
- printing
- cylinder
- plate
- 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.)
- Not-in-force
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N6/00—Mounting boards; Sleeves Make-ready devices, e.g. underlays, overlays; Attaching by chemical means, e.g. vulcanising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/193—Transfer cylinders; Offset cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
- B41N10/02—Blanket structure
- B41N10/06—Blanket structure facilitating fastening to, or location on, supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
Definitions
- the invention relates to a printing unit of a printing press without dampening unit according to the preamble of claim 1.
- Some printing units work without dampening solution and are thus particularly suitable for waterless web offset printing.
- a printing plate which allows the transfer of the printed image without dampening solution.
- the printing plate on a lower layer of a ink-accepting material and an upper layer of a ink-repellent material.
- the ink repellency on the upper layer is carried out without dampening solution.
- special materials are required to make the top layer.
- silicone-containing materials have proven suitable for damp-proof ink repellency.
- the upper and thus ink-repellent layer of the printing plate has openings on the areas of the printed image to be printed, so that the printing ink can accumulate on the underlying ink-accepting layer.
- the printed image in generic printing on a downstream transfer cylinder, such as a blanket cylinder, are transmitted.
- the upper layer covers the lower layer so that no ink is transferred in these areas.
- a printing unit for waterless offset printing is for example in the WO 03/045695 A1 described.
- the EP 0 182 156 B1 shows a rubber cylinder with a radius reduced Area.
- the DE 198 02 470 A1 discloses a multilayer blanket.
- the DE 33 15 506 A1 describes an offset blanket, which has between its ends a recess extending in the axial direction in order to avoid Mitdrucken the plate edges.
- the invention has for its object to provide a printing unit of a printing press without dampening, in which the ends of the printing plates not mittiken even in planographic without dampening solution.
- An advantage of the printing unit is in particular that the ends of the printing plates opposite recesses on the lateral surface of the transfer cylinder, which extend parallel to the longitudinal axis of the transfer cylinder. In this way, a transfer of ink from the ends of the printing plates is prevented on the transfer cylinder. As a result, the ends of the printing plates are not printed in the planographic printing without fountain solution, as a color transfer of this area is excluded due to the wells on the transfer cylinder.
- the transfer cylinder is designed constructively, is basically arbitrary.
- the transfer cylinder on a blanket with a dimensionally stable support plate and a fixed to the support plate coating.
- the ends of the carrier plate can be fixed to the transfer cylinder.
- the lateral surface of the transfer cylinder is formed by the outside of the coating.
- a recess on the transfer cylinder can be formed by the distance between the leading end and the trailing end of the blanket, in particular by the distance between the leading side edge and the trailing side edge of the coating of the blanket.
- the coating between the leading end and the trailing end of the blanket, in particular between the leading side edge and the trailing side edge of the coating of the blanket, in particular approximately midway between these two side edges, have a groove incorporated into the coating of the blanket.
- the depth of the groove should preferably correspond to approximately 5% to 15% of the thickness of the coating.
- the ends are set even on the transfer cylinder.
- a recess may be formed by the distance between the leading and the trailing hemming edge of the blanket.
- the width of the groove in the circumferential direction should be about 0.1% to 1% of the length of the Compressed blanket in the circumferential direction.
- the plate cylinder and / or the transfer cylinder can be tempered, since the ink transfer process of the inkless ink can be better guided by the temperature control.
- Fig. 1 is a part of a printing unit 01 with a plate cylinder 02 and an adjacent transfer cylinder 03 shown in a perspective view.
- On the circumference of the plate cylinder 02 are in four rows next to each other two printing plates 04, in particular planographic printing plates 04, mounted one behind the other in the circumferential direction, so that a total of eight printing plates 04 on the plate cylinder 02 results.
- the printing plates 04 transfer the desired print image in damp-proof flat printing onto the circumferential surface of the transfer cylinder 03, from where it is transferred, for example, to a printing material web in offset printing.
- the pressure plate 04 from a support layer 06 for example, aluminum, a color transfer layer 07 of a color-transferring material, an ink-repellent layer 08 of an ink-repellent material, eg. B. silicone, and a protective layer 09.Zur transfer of the desired print image on the printing plate 04, this example, using a positive film 11 containing the printed image illuminated ( Fig. 2b ). For exposure, in particular UV light can be used. At the exposed areas of the printing plate 04, the ink-repellent layer 08 is detached locally ( Fig. 2c ) and can be washed off in areas with suitable solvents.
- a support layer 06 for example, aluminum
- a color transfer layer 07 of a color-transferring material for example, an ink-repellent layer 08 of an ink-repellent material, eg. B. silicone
- a protective layer 09.Zur transfer of the desired print image on the printing plate 04, this example, using a positive film 11 containing the printed image illuminated ( Fig. 2
- the ink-repellent layer 08 then covers the ink-transferring layer 07 at the locations of the printed image which are not to be printed later ( Figure 2d ).
- the printing ink 13 can accumulate in the region of the perforations 12 on the ink-transferring layer 07 and thus be transferred to the downstream transfer cylinder 03 (in the case of the printing process). Fig. 2e ).
- a damp-free transfer of the printing ink 13 is possible.
- other manufacturing processes are also known and can be used to produce printing plates that operate without dampening agents.
- the circumference of the transfer cylinder 03 is covered with a blanket 14.
- a recess 15 on the transfer cylinder 03 is formed by the distance between the leading end and the trailing end of the blanket 14.
- the plate cylinder 02 has channels 16, which can be flowed through by a temperature-controlled liquid, thereby tempering the plate cylinder 02 from the inside.
- the contact zone between plate cylinder 02 and transfer cylinder 03 in which the successively arranged printing plates 04 on the blanket 14 come into contact with the ink transfer is in Fig. 4 shown enlarged.
- the successively arranged printing plates 04 are each fixed with mounting tabs 18 on the plate cylinder 02.
- the blanket 14 has in the region of the circumference on which the ends 17 of the printing plates 04 roll on a recess 19, so that in the region of the ends 17 no ink is transferred to the blanket 14.
- the structure of the printing blanket 14 is in Fig. 5 and Fig. 6 shown.
- This blanket is preferably on a in the DE 103 11 285 A or DE 198 03 809 A to use the described printing unit.
- a multilayer coating 22 of rubber is vulcanized on a dimensionally stable support plate 21 made of stainless steel.
- the recess 19 is formed by a groove which is arranged approximately centrally between the leading side edge 23 and the trailing side edge 24 of the coating 22.
- the depth 26 of the recess 19 is approximately 10% of the thickness of the coating 22.
- the width 27 of the recess 19 is approximately 0.5% of the effective length of the blanket 14, which corresponds in the present embodiment, the length of the coating 22 in the circumferential direction.
- a second embodiment of a transfer cylinder 28 is shown with a blanket 29 attached thereto in cross section.
- the ends of the blanket 29 are secured in a groove on the transfer cylinder 28.
- a lower 31 is arranged between the outer periphery of the transfer cylinder 28 and the inner periphery of the blanket 29.
- the banding 31 has an interruption, so that a recess 32 is thereby formed on the outer circumference of the blanket 29.
- the lateral surface of the transfer cylinder 28 may also have an interruption.
- a recess 19 is incorporated as a deformation in the support plate 21 of the blanket 14, ie at the point in which the recess 19 is formed on the support plate 21.
- the recess 19 is in a dimensionally stable deformation.
- This deformation is in a first variant by means of a punch, z. B. a die 33, pressed into the support plate 21.
- the recess 19 is introduced into the carrier plate 21 by means of a male mold 34 and a die 33. Instead of the deformation and the thickness of the support plate 21 may be reduced.
- the recess 19 has a bending radius of about 0 mm to 1 mm.
- the width 27 is about 3 mm to 8 mm, wherein the depth 26 is about 0.1 mm to 0.5 mm, in particular about 0.2 mm to 0.3 mm.
- the recess 19 is mounted in an advantageous manner prior to the application of the blanket 14 on the dimensionally stable support plate 21 and prior to the application of the blanket 14 on the transfer cylinder 03 on the support plate 21.
- the depression 19 is introduced onto the carrier plate 21 on the carrier plate 21 when the blanket 14 has already been applied.
- the embodiments are also on transfer cylinder 03; 28 transferable, in which in the axial direction two blankets 14; 29 are arranged.
- the depressions 19; 32 are z. B. offset in the circumferential direction by 180 ° to each other.
- a plate cylinder 02 interacts, wherein a circumference of the transfer cylinder 03; 28 has an integer multiple of the circumference of the plate cylinder 02.
- the circumference of the plate cylinder 02 has a pressure plate 04 and four pressure plates 04 in the axial direction.
- the plate cylinder 02 may be associated with a dampening unit.
- the dimensionally stable support plate 21 is deformed together with the printing blanket 14 together with the aid of a die 33 and male part 34 to produce a depression 19.
- the printing blanket unit 37 consisting of carrier plate 21 and coatings of the printing blanket 14 is introduced into a device 38.
- This device 38 essentially has a support 39, at least one or more hold-down 41, two movable, z. B. pivotable bending strips 42, the male 34 and the die 33 on.
- the hold-down 41, bending bars 42 and the male part 34 are, for example, each of a working cylinder 43, z. B. a pneumatic cylinder 43 moves.
- the printing blanket unit 37 is placed on the support 39 of the device 38 with the bending strips 42 open and fixed thereon with the hold-downs 41 (FIG. Fig. 12 ). Subsequently, preferably the ends of the carrier plate 21 are bent by pivoting the bending bars 42 ( Fig. 13 ) and then the recess 19 formed by the male part 34 in the blanket unit 37 ( Fig. 14 ).
Description
Die Erfindung betrifft ein Druckwerk einer Druckmaschine ohne Feuchtwerk gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a printing unit of a printing press without dampening unit according to the preamble of claim 1.
Manche Druckwerke arbeiten ohne Feuchtmittel und sind auf diese Weise insbesondere für den wasserlosen Rollenoffsetdruck geeignet. Beim Drucken ohne Feuchtmittel wird auf den Plattenzylinder des Druckwerks eine Druckplatte befestigt, die die Übertragung des Druckbildes auch ohne Feuchtmittel erlaubt. Dazu weist die Druckplatte eine untere Schicht aus einem farbannehmenden Material und eine obere Schicht aus einem farbabstoßendem Material auf. Die Farbabstoßung an der oberen Schicht erfolgt dabei ohne Feuchtmittel. Dementsprechend sind zur Herstellung der oberen Schicht besondere Materialien erforderlich. Insbesondere haben sich silikonhaltige Materialien zur feuchtmittellosen Farbabstoßung als geeignet erwiesen.Some printing units work without dampening solution and are thus particularly suitable for waterless web offset printing. When printing without dampening solution is attached to the plate cylinder of the printing unit, a printing plate, which allows the transfer of the printed image without dampening solution. For this purpose, the printing plate on a lower layer of a ink-accepting material and an upper layer of a ink-repellent material. The ink repellency on the upper layer is carried out without dampening solution. Accordingly, special materials are required to make the top layer. In particular, silicone-containing materials have proven suitable for damp-proof ink repellency.
Die obere und damit farbabstoßende Schicht der Druckplatte weist an den zu druckenden Bereichen des Druckbildes Durchbrechungen auf, so dass sich die Druckfarbe an der darunterliegenden farbannehmenden Schicht anlagern kann. Auf diese Weise kann das Druckbild bei gattungsgemäßen Druckwerken auf einen nachgeordneten Übertragungszylinder, beispielsweise einen Gummituchzylinder, übertragen werden. An den nicht zu druckenden Bereichen des Druckbildes überdeckt die obere Schicht die untere Schicht, so dass in diesen Bereichen keine Druckfarbe übertragen wird.The upper and thus ink-repellent layer of the printing plate has openings on the areas of the printed image to be printed, so that the printing ink can accumulate on the underlying ink-accepting layer. In this way, the printed image in generic printing on a downstream transfer cylinder, such as a blanket cylinder, are transmitted. At the areas of the printed image which are not to be printed, the upper layer covers the lower layer so that no ink is transferred in these areas.
Ein Druckwerk für den wasserlosen Offsetdruck ist beispielsweise in der
Die
Durch die
Die
Die
Werden am Plattenzylinder mehrere Druckplatten in Umfangsrichtung hintereinander mit zueinanderweisenden Enden befestigt, so ergibt sich beim gattungsgemäßen Flachdruck ohne Feuchtmittel das Problem, dass die Enden der Druckplatten oftmals zumindest schwach mitgedruckt werden, obwohl die Enden in einem an sich nicht zu druckenden Bereich des Druckbildes liegen.If a plurality of printing plates in the circumferential direction one behind the other with fastened ends attached to the plate cylinder, the result is the generic flat printing without dampening solution the problem that the ends of the printing plates are often at least weak mitgesruckt, although the ends are in a not to be printed on itself area of the printed image.
Der Erfindung liegt die Aufgabe zugrunde, ein Druckwerk einer Druckmaschine ohne Feuchtwerk zu schaffen, bei dem die Enden der Druckplatten auch beim Flachdruck ohne Feuchtmittel nicht mitdrucken.The invention has for its object to provide a printing unit of a printing press without dampening, in which the ends of the printing plates not mitdrucken even in planographic without dampening solution.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved by the features of claim 1.
Ein Vorteil des Druckwerks liegt insbesondere darin, dass den Enden der Druckplatten Vertiefungen auf der Mantelfläche des Übertragungszylinders gegenüberliegen, die sich parallel zur Längsachse des Übertragungszylinders erstrecken. Auf diese Weise wird ein Farbübertrag von den Enden der Druckplatten auf den Übertragungszylinder verhindert. Im Ergebnis werden so die Enden der Druckplatten auch beim Flachdruck ohne Feuchtmittel nicht mitgedruckt, da ein Farbübertrag dieses Bereichs aufgrund der Vertiefungen auf dem Übertragungszylinder ausgeschlossen ist.An advantage of the printing unit is in particular that the ends of the printing plates opposite recesses on the lateral surface of the transfer cylinder, which extend parallel to the longitudinal axis of the transfer cylinder. In this way, a transfer of ink from the ends of the printing plates is prevented on the transfer cylinder. As a result, the ends of the printing plates are not printed in the planographic printing without fountain solution, as a color transfer of this area is excluded due to the wells on the transfer cylinder.
In welcher Weise der Übertragungszylinder konstruktiv ausgebildet ist, ist grundsätzlich beliebig. Nach einer bevorzugten Ausführungsform weist der Übertragungszylinder ein Drucktuch mit einer formstabilen Trägerplatte und einer auf der Trägerplatte befestigten Beschichtung auf. Zur Befestigung des Drucktuchs können die Enden der Trägerplatte am Übertragungszylinder festgelegt werden. Die Mantelfläche des Übertragungszylinders wird von der Außenseite der Beschichtung gebildet.In what way the transfer cylinder is designed constructively, is basically arbitrary. According to a preferred embodiment, the transfer cylinder on a blanket with a dimensionally stable support plate and a fixed to the support plate coating. For attachment of the blanket, the ends of the carrier plate can be fixed to the transfer cylinder. The lateral surface of the transfer cylinder is formed by the outside of the coating.
Eine Vertiefung am Übertragungszylinder kann durch den Abstand zwischen dem vorlaufenden Ende und dem nachlaufenden Ende des Drucktuchs, insbesondere durch den Abstand zwischen der vorlaufenden Seitenkante und der nachlaufenden Seitenkante der Beschichtung des Drucktuchs, gebildet werden.A recess on the transfer cylinder can be formed by the distance between the leading end and the trailing end of the blanket, in particular by the distance between the leading side edge and the trailing side edge of the coating of the blanket.
Additiv dazu kann die Beschichtung zwischen dem vorlaufenden Ende und dem nachlaufenden Ende des Drucktuchs, insbesondere zwischen der vorlaufenden Seitenkante und der nachlaufenden Seitenkante der Beschichtung des Drucktuchs, insbesondere ungefähr mittig zwischen diesen beiden Seitenkanten, eine in die Beschichtung des Drucktuchs eingearbeitete Nut aufweisen. Die Tiefe der Nut sollte dabei vorzugsweise ungefähr 5 % bis 15 % der Dicke der Beschichtung entsprechen.Additively, the coating between the leading end and the trailing end of the blanket, in particular between the leading side edge and the trailing side edge of the coating of the blanket, in particular approximately midway between these two side edges, have a groove incorporated into the coating of the blanket. The depth of the groove should preferably correspond to approximately 5% to 15% of the thickness of the coating.
Alternativ zur Verwendung eines Drucktuchs mit Trägerplatte sind auch Drucktücher denkbar, deren Enden selbst am Übertragungszylinder festgelegt werden. Bei derartigen Drucktüchern kann eine Vertiefung durch den Abstand zwischen der vorlaufenden und der nachlaufenden Einhängekante des Drucktuchs gebildet sein. Weiter ist es auch möglich zur Bildung der Vertiefung eine Nut in das Drucktuch einzuarbeiten. Ist zwischen dem Drucktuch und dem Übertragungszylinder ein Unterzug vorgesehen, so kann der Unterzug zur Bildung der Vertiefung am Außenumfang des Drucktuchs zumindest eine Unterbrechung oder eine Querschnittsverringerung aufweisen.Alternatively to the use of a blanket with carrier plate and blankets are conceivable, the ends are set even on the transfer cylinder. In such blankets, a recess may be formed by the distance between the leading and the trailing hemming edge of the blanket. Further, it is also possible to form a groove in the blanket to form the depression. If a joist is provided between the blanket and the transfer cylinder, the joist for forming the depression on the outer circumference of the blanket may have at least one interruption or reduction in cross-section.
Die Breite der Vertiefung in Umfangsrichtung sollte ungefähr 0,1 % bis 1 % der Länge des Drucktuchs in Umfangsrichtung entsprechen.The width of the groove in the circumferential direction should be about 0.1% to 1% of the length of the Compressed blanket in the circumferential direction.
Besonders vorteilhaft ist es, wenn der Plattenzylinder und/oder der Übertragungszylinder temperiert werden kann, da durch die Temperierung der Farbübertragungsprozess der feuchtmittellosen Druckfarbe besser geführt werden kann. Nachfolgend wird die Erfindung anhand der in den Zeichnungen dargestellten Ausführungsformen beispielhaft erläutert.It is particularly advantageous if the plate cylinder and / or the transfer cylinder can be tempered, since the ink transfer process of the inkless ink can be better guided by the temperature control. The invention will be explained by way of example with reference to the embodiments shown in the drawings.
Es zeigen:
- Fig. 1
- einen Plattenzylinder und einen Übertragungszylinder eines feuchtmittellos arbeitenden Druckwerks in perspektivischer Ansicht;
- Fig. 2
- fünf Bearbeitungsschritte zur Herstellung der farbübertragenden Druckplatten des Druckwerks gemäß
Fig. 1 ; - Fig. 3
- das Druckwerk gemäß
Fig. 1 im Querschnitt; - Fig. 4
- den Querschnitt des Druckwerks gemäß
Fig. 3 in einem vergrößerten Ausschnitt; - Fig. 5
- das Drucktuch des Übertragungszylinders gemäß
Fig. 1 in Ansicht von vorne; - Fig. 6
- das Drucktuch gemäß
Fig. 5 im Querschnitt; - Fig. 7
- eine zweite Ausführungsform eines Übertragungszylinder mit einer zweiten Ausführungsform eines Drucktuchs im Querschnitt;
- Fig. 8
- das Drucktuch des Übertragungszylinders in Ansicht von vorne in einer anderen Ausführungsform;
- Fig. 9
- das Drucktuch gemäß
Fig. 8 im Querschitt; - Fig. 10
- ein vergrößerter Ausschnitt einer Vertiefung des Drucktuches;
- Fig. 11
- ein weiteres Ausführungsbeispiel;
- Fig. 12 bis 14
- Verfahrensschritte zur Herstellung einer Drucktucheinheit.
- Fig. 1
- a plate cylinder and a transfer cylinder of a dampening-free working printing unit in a perspective view;
- Fig. 2
- Five processing steps for the production of the ink-transfer printing plates of the printing unit according to
Fig. 1 ; - Fig. 3
- the printing unit according to
Fig. 1 in cross-section; - Fig. 4
- the cross section of the printing unit according to
Fig. 3 in an enlarged section; - Fig. 5
- the blanket of the transfer cylinder according to
Fig. 1 in front view; - Fig. 6
- the blanket according to
Fig. 5 in cross-section; - Fig. 7
- a second embodiment of a transfer cylinder with a second embodiment of a blanket in cross section;
- Fig. 8
- the blanket of the transfer cylinder in front view in another embodiment;
- Fig. 9
- the blanket according to
Fig. 8 in the transverse section; - Fig. 10
- an enlarged section of a depression of the blanket;
- Fig. 11
- another embodiment;
- Fig. 12 to 14
- Process steps for producing a printing blanket unit.
In
Die Herstellung der die Druckfarbe übertragenden Umfangsschicht an den Druckplatten 04 soll nachfolgend anhand der fünf Skizzen in
Wie aus
Wie aus dem in
Der Plattenzylinder 02 weist Kanäle 16 auf, die von einer temperierten Flüssigkeit durchströmt werden können, um dadurch den Plattenzylinder 02 von innen zu temperieren. Die Kontaktzone zwischen Plattenzylinder 02 und Übertragungszylinder 03 in der die hintereinander angeordneten Druckplatten 04 an dem Drucktuch 14 farbübertragend zur Anlage kommen, ist in
Wie aus
Der Aufbau des Drucktuchs 14 ist in
In
Anstelle des Unterzugs 31 kann auch die Mantelfläche des Übertragungszylinders 28 eine Unterbrechung aufweisen.Instead of the
In einer weiteren Ausführungsform gemäß
Diese Verformung wird in einer ersten Variante mittels eines Stempels, z. B. einer Matrize 33, in die Trägerplatte 21 eingedrückt. Die Vertiefung 19 wird in die Trägerplatte 21 mittels einer Patrize 34 und einer Matrize 33 eingebracht. Anstelle der Verformung kann auch die Dicke der Trägerplatte 21 reduziert sein.This deformation is in a first variant by means of a punch, z. B. a
Die Vertiefung 19 weist einen Biegeradius von ca. 0 mm bis 1 mm auf. Die Breite 27 beträgt ca. 3 mm bis 8 mm, wobei die Tiefe 26 bei ca. 0,1 mm bis 0,5 mm, insbesondere bei ca. 0,2 mm bis 0,3 mm, liegt.The
Die Vertiefung 19 wird in vorteilhafter Weise vor dem Aufbringen des Drucktuches 14 auf der formstabilen Trägerplatte 21 und vor dem Aufbringen des Drucktuches 14 auf dem Übertragungszylinder 03 auf der Trägerplatte 21 angebracht. In einer anderen Ausführungsform wird die Vertiefung 19 bei bereits aufgebrachtem Drucktuch 14 auf der Trägerplatte 21 auf die Trägerplatte 21 eingebracht.The
In einer anderen Ausführungsform, wie in
Weist der Übertragungszylinder 28 einen Unterzug 32, z. B. eine aufgeklebte Folie, auf, so wird die Vertiefung 32 in oder zwischen den Unterzug 32 und den Ballen des Übertragungszylinders 28 eingebracht (
Die Ausführungsbeispiele sind auch auf Übertragungszylinder 03; 28 übertragbar, bei denen in axialer Richtung zwei Drucktücher 14; 29 angeordnet sind. Die Vertiefungen 19; 32 sind dabei z. B. in Umfangsrichtung um 180° versetzt zueinander angeordnet.The embodiments are also on
Auch kann mit dem Übertragungszylinder 03; 28 ein Plattenzylinder 02 zusammenwirken, wobei ein Umfang des Übertragungszylinders 03; 28 ein ganzzahliges Vielfaches des Umfangs des Plattenzylinders 02 aufweist. Der Umfang des Plattenzylinders 02 weist in einer bevorzugten Ausführungsform eine Druckplatte 04 auf und in axialer Richtung vier Druckplatten 04 auf. Dem Plattenzylinder 02 kann ein Feuchtwerk zugeordnet sein.Also, with the
Nachfolgend wird ein bevorzugtes Verfahren zur Herstellung der Drucktucheinheit beschrieben.Hereinafter, a preferred method of manufacturing the blanket unit will be described.
Vor dem Aufbringen auf einen in einer Druckmaschine angeordneten Übertragungszylinder 03 wird die formstabile Trägerplatte 21 mit dem Drucktuch 14 gemeinsam mit Hilfe einer Matrize 33 und Patrize 34 zur Herstellung einer Vertiefung 19 verformt.Before being applied to a
Dazu wird die aus Trägerplatte 21 und Beschichtungen des Drucktuches 14 bestehende Drucktucheinheit 37 in eine Vorrichtung 38 eingebracht. Diese Vorrichtung 38 weist im wesentlichen eine Auflage 39, mindestens einen oder mehrere Niederhalter 41, zwei bewegbare, z. B. schwenkbare Biegeleisten 42, die Patrize 34 und die Matrize 33 auf. Die Niederhalter 41, Biegeleisten 42 und die Patrize 34 werden beispielsweise jeweils von einem Arbeitszylinder 43, z. B. einem Pneumatikzylinder 43, bewegt.For this purpose, the
Zuerst wird die Drucktucheinheit 37 bei geöffneten Biegeleisten 42 auf die Auflage 39 der Vorrichtung 38 aufgelegt und mit den Niederhaltern 41 darauf fixiert (
- 0101
- Druckwerkprinting unit
- 0202
- Plattenzylinderplate cylinder
- 0303
- Übertragungszylindertransfer cylinder
- 0404
- Druckplatte, FlachdruckplattePressure plate, planographic printing plate
- 0505
- --
- 0606
- Trägerschichtbacking
- 0707
- farbübertragende Schichtcolor transfer layer
- 0808
- --
- 0909
- Schutzschichtprotective layer
- 1010
- --
- 1111
- Positivfilmpositive film
- 1212
- Durchbrechungperforation
- 1313
- Druckfarbeprinting ink
- 1414
- Drucktuchblanket
- 1515
- Vertiefungdeepening
- 1616
- Kanalchannel
- 1717
- Ende (04)End (04)
- 1818
- Befestigungslaschemounting tab
- 1919
- Vertiefung, NutRecess, groove
- 2020
- --
- 2121
- Trägerplattesupport plate
- 2222
- Beschichtungcoating
- 2323
- vorlaufende Seitenkanteleading side edge
- 2424
- nachlaufende Seitenkantetrailing side edge
- 2525
- --
- 2626
- Tiefe (19)Depth (19)
- 2727
- Breite (19)Width (19)
- 2828
- Übertragungszylindertransfer cylinder
- 2929
- Drucktuchblanket
- 3030
- --
- 3131
- UnterzugBeam
- 3232
- Vertiefungdeepening
- 3333
- Stempel, MatrizeStamp, die
- 3434
- Patrizepunch
- 3535
- --
- 3636
- Vertiefung (03)Recess (03)
- 3737
- DrucktucheinheitBlanket unit
- 3838
- Vorrichtungcontraption
- 3939
- Auflageedition
- 4040
- --
- 4141
- NiederhalterStripper plate
- 4242
- Biegeleistebending bar
- 4343
- Arbeitszylinder, PneumatikzylinderWorking cylinder, pneumatic cylinder
Claims (29)
- Printing press having a printing unit (01) without a dampening unit, comprising a transfer cylinder (03) and a plate cylinder (02), the plate cylinder (02) having at least two waterless planographic printing plates (04) in the circumferential direction, only one opening for receiving a single blanket (14; 29) being arranged on the circumference of the transfer cylinder (03), and this opening being in each case opposite ends (17) of planographic printing plates (04), and an indentation (19) on the lateral surface of the blanket (14; 29) being opposite the other ends (17) of these planographic printing plates (04), a coating (22) of the blanket (14) being fastened on a dimensionally stable metal support plate (21) and the coating (22) of the blanket (14) and the support plate (21) forming a blanket unit (37).
- Printing unit (01) according to Claim 1, characterized in that at least two blankets (14; 29) are arranged side by side in the axial direction on the transfer cylinder (03).
- Printing unit (01) according to Claim 1, characterized in that the indentation (19) extends parallel to the longitudinal axis of the transfer cylinder (03).
- Printing unit (01) according to Claim 1, characterized in that a coating of the planographic printing plate (04) has a lower layer (07) and an upper layer (08).
- Printing unit (01) according to Claim 4, characterized in that the lower layer (07) is formed from an ink-accepting material and the upper layer (08) from an ink-repelling material.
- Printing unit (01) according to Claim 5, characterized in that the ink-repelling material is a silicone-containing material.
- Printing unit (01) according to Claim 4, characterized in that the upper layer (08) has passages (12) on those parts of the printed image which are to be printed.
- Printing unit (01) according to Claim 4, characterized in that the upper layer (08) covers the lower layer (07) in those parts of the printed image which are not to be printed.
- Printing unit (01) according to Claim 1, characterized in that an indentation (15) is formed by the distance between the leading end and the trailing end of the blanket (14; 29), in particular by the distance between the leading lateral edge (23) and the trailing lateral edge (24) of the coating (22) of the blanket (14; 29).
- Printing unit (01) according to Claim 9, characterized in that the indentation (15) extends parallel to the longitudinal axis of the transfer cylinder (03).
- Printing unit (01) according to Claim 1, characterized in that at least one indentation (19) is incorporated as a groove into the blanket (14; 29).
- Printing unit (01) according to Claim 1, characterized in that the indentation (19) is incorporated into the coating (22) of the blanket (14; 29).
- Printing unit (01) according to Claim 1, characterized in that the depth (26) of the groove (19) corresponds approximately to 5% to 15% of the total thickness of the coating (22).
- Printing unit (01) according to any of Claims 1 to 4, characterized in that a groove (19) is arranged approximately in the middle between the leading end and the trailing end of the blanket (14; 29), in particular between the leading lateral edge (23) and the trailing lateral edge (24) of the coating (22) of the blanket (14; 29).
- Printing unit (01) according to Claim 1, characterized in that the width (27) of the indentation (19) in the circumferential direction corresponds approximately to 0.1% to 1% of the length of the blanket (14; 29) in the circumferential direction.
- Printing unit (01) according to Claim 1, characterized in that the metal is in the form of a metal sheet.
- Printing unit (01) according to Claim 1, characterized in that the support plate (21) is produced from stainless steel.
- Printing unit (01) according to Claim 1, characterized in that the coating (22) of the blanket (14; 29) is produced from rubber.
- Printing unit (01) according to Claim 18, characterized in that the rubber is in the form of multilayer rubber.
- Printing unit (01) according to Claim 1, characterized in that the coating (22) of the blanket (14; 29) has a polished surface.
- Printing unit (01) according to Claim 1, characterized in that a single planographic printing plate (04) is arranged in the axial direction on the plate cylinder (02).
- Printing unit (01) according to Claim 1, characterized in that a plurality of planographic printing plates (04) is arranged, in particular two or four or six planographic printing plates (04) are arranged, side by side in the axial direction on the plate cylinder (02).
- Printing unit (01) according to Claim 1, characterized in that the size of a planographic printing plate (04) corresponds to a newspaper page.
- Printing unit (01) according to Claim 1, characterized in that the plate cylinder (02) and/or the transfer cylinder (03) can be thermostated.
- Printing unit (01) according to Claim 24, characterized in that the plate cylinder (02) and/or the transfer cylinder (03) can be thermostated from inside.
- Printing unit (01) according to Claim 25, characterized in that the plate cylinder (02) and/or the transfer cylinder (03) can be thermostated by means of a heat-transfer medium circulating in channels (16).
- Printing unit (01) according to Claim 24 or 26, characterized in that the plate cylinder (02) and/or the transfer cylinder (03) can be thermostated by means of a liquid.
- Printing unit (01) according to Claim 24, 26 or 27, characterized in that thermostating of the plate cylinder (02) and/or of the transfer cylinder (03) depends on the circumferential speed of the plate cylinder (02) and/or the circumferential speed of the transfer cylinder (03).
- Printing unit (01) according to Claim 22, characterized in that openings of the plate cylinder (02) for receiving ends (17) of the planographic printing plates (14) are aligned in the axial direction.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10358842 | 2003-12-16 | ||
DE102004011882A DE102004011882A1 (en) | 2003-12-16 | 2004-03-11 | Printing blanket for printers has dimensionally stable support plate fixed by ends on transfer cylinder and with indentation formed between ends of blanket |
DE200410023316 DE102004023316A1 (en) | 2004-05-07 | 2004-05-07 | Printing blanket for printers has dimensionally stable support plate fixed by ends on transfer cylinder and with indentation formed between ends of blanket |
EP04804815A EP1694505B1 (en) | 2003-12-16 | 2004-12-14 | Printing blanket having a dimensionally stable carrier plate, and method for producing a printing blanket of this type |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04804815A Division EP1694505B1 (en) | 2003-12-16 | 2004-12-14 | Printing blanket having a dimensionally stable carrier plate, and method for producing a printing blanket of this type |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1707355A2 EP1707355A2 (en) | 2006-10-04 |
EP1707355A3 EP1707355A3 (en) | 2007-07-25 |
EP1707355B1 true EP1707355B1 (en) | 2009-07-08 |
Family
ID=34704621
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06116409A Not-in-force EP1707355B1 (en) | 2003-12-16 | 2004-12-14 | Printing unit for a printing machine without dampening unit |
EP04804815A Not-in-force EP1694505B1 (en) | 2003-12-16 | 2004-12-14 | Printing blanket having a dimensionally stable carrier plate, and method for producing a printing blanket of this type |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04804815A Not-in-force EP1694505B1 (en) | 2003-12-16 | 2004-12-14 | Printing blanket having a dimensionally stable carrier plate, and method for producing a printing blanket of this type |
Country Status (4)
Country | Link |
---|---|
US (1) | US7533608B2 (en) |
EP (2) | EP1707355B1 (en) |
JP (1) | JP2007511389A (en) |
WO (1) | WO2005058601A2 (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102004033920B4 (en) * | 2004-05-04 | 2006-11-02 | Koenig & Bauer Ag | Printing form of a printing machine and web-fed rotary printing press |
DE102006010551A1 (en) * | 2006-03-07 | 2007-09-13 | Maschinenfabrik Wifag | relief element |
DE102006027144B3 (en) * | 2006-06-12 | 2007-11-29 | Koenig & Bauer Aktiengesellschaft | Form stable printing cylinder blanket is assembled from a number of beveled edge panels made of different materials |
DE102006027143B4 (en) * | 2006-06-12 | 2011-06-01 | Koenig & Bauer Aktiengesellschaft | Blanket unit for a blanket cylinder of a rotary printing machine |
DE102006027142B3 (en) * | 2006-06-12 | 2007-05-24 | Koenig & Bauer Ag | Printing cloth unit for printing cloth cylinder of printing press has underlays in form of self-adhesive foil applied to underside of carrier plate |
DE102007009810A1 (en) * | 2007-02-28 | 2008-09-04 | Man Roland Druckmaschinen Ag | Rubber blanket plate for a web-fed printing press comprises a film formed on a side of a plate-like support so that one surface of the support covered by the film on the side is smaller than one surface of the support covered by the blanket |
DE102007010358A1 (en) * | 2007-03-03 | 2008-10-30 | Manroland Ag | Satellite printing unit of a web-fed printing machine |
ITMI20071348A1 (en) * | 2007-07-06 | 2009-01-07 | Trelleborg Engineered Systems | METHOD FOR THE REALIZATION OF A FINISH (METAL BACK PRINTING BLANKET) OF TYPOGRAPHIC CYLINDER WITH THERMO-ADHESIVE PLASTIC SHEET AS A UNDERWEAR |
JP2010036518A (en) * | 2008-08-07 | 2010-02-18 | Lifcom:Kk | Blanket cylinder |
JP5465886B2 (en) * | 2009-01-21 | 2014-04-09 | 三菱重工印刷紙工機械株式会社 | Blanket for printing and manufacturing method thereof, blanket cylinder and printing machine |
JP5332017B2 (en) * | 2009-08-19 | 2013-11-06 | 株式会社東京機械製作所 | Blanket cylinder for newspaper printing and offset rotary printing press for newspaper printing provided with this blanket cylinder |
US20120325098A1 (en) * | 2010-02-24 | 2012-12-27 | Kyocera Corporation | Printing blanket, manufacturing method thereof, blanket cylinder, and printing press |
US20120073460A1 (en) * | 2010-09-29 | 2012-03-29 | Goss International Americas, Inc. | Variable cutoff printing press and method for double printing |
DE102014208428B3 (en) * | 2014-05-06 | 2015-04-02 | Koenig & Bauer Aktiengesellschaft | Method for forming a printing blanket for a rotary printing press |
JP6410617B2 (en) * | 2015-01-19 | 2018-10-24 | 西研グラフィックス株式会社 | Blanket cylinder manufacturing method |
JP6508680B2 (en) * | 2015-07-24 | 2019-05-08 | 藤倉コンポジット株式会社 | Printing blanket |
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DE1947520A1 (en) | 1969-09-19 | 1971-11-04 | Claas Maschf Gmbh Geb | Feeding device for a conveyor device |
CA1023614A (en) * | 1973-09-19 | 1978-01-03 | Gravure Research Institute | Wrap around gravure printing apparatus |
GB1476707A (en) | 1974-06-28 | 1977-06-16 | Rockwell International Corp | Printing plate arrangement |
JPS58180043U (en) * | 1982-05-26 | 1983-12-01 | 株式会社明治ゴム化成 | printing blanket |
JPS5943166U (en) * | 1982-09-13 | 1984-03-21 | 住友ゴム工業株式会社 | Blankets for offset printing machines |
DE3315506A1 (en) * | 1983-04-28 | 1984-10-31 | Siegfried Dipl.-Ing. Geiger (FH), 8039 Puchheim | Offset cloth for the offset cylinder of the printing unit of an offset printer |
DE3336193C2 (en) * | 1983-10-05 | 1986-02-27 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Blanket for a rotary offset printing press |
DE3441175A1 (en) | 1984-11-10 | 1986-05-22 | Albert-Frankenthal Ag, 6710 Frankenthal | OFFSET PRINTING MACHINE |
DE4217793C1 (en) * | 1992-05-29 | 1993-12-09 | Roland Man Druckmasch | Offset blanket and process for its manufacture |
JPH0717157A (en) * | 1993-07-02 | 1995-01-20 | Mitsubishi Heavy Ind Ltd | Blanket with base |
JP3379801B2 (en) * | 1993-11-25 | 2003-02-24 | 株式会社金陽社 | Manufacturing method of printing blanket |
DE4400020A1 (en) * | 1994-01-03 | 1995-08-31 | I M C Gmbh Marketing Fuer Die | Rubber blanket for roller offset printing machines |
FR2763888B1 (en) * | 1997-05-28 | 1999-07-16 | Rollin Sa | IMPROVED SLEEVE FOR A CYLINDER OF A PRINTING MACHINE OR THE LIKE AND METHOD FOR FITTING THEREOF |
DE19802470A1 (en) * | 1998-01-23 | 1999-07-29 | Contitech Elastomer Besch Gmbh | Printing blanket for offset printing |
DE19803809A1 (en) * | 1998-01-31 | 1999-08-05 | Roland Man Druckmasch | Offset printing unit |
DE19804269A1 (en) * | 1998-02-04 | 1999-08-05 | Heidelberger Druckmasch Ag | Device for applying a liquid to a printing material sheet, in particular printing, or coating unit, in a sheet-fed rotary printing machine |
JP2000006543A (en) * | 1998-06-23 | 2000-01-11 | Sumitomo Rubber Ind Ltd | Printing blanket |
EP1361051B9 (en) * | 1999-12-02 | 2010-02-24 | Koenig & Bauer Aktiengesellschaft | Printing group of a printing machine |
JP3457932B2 (en) * | 2000-07-31 | 2003-10-20 | 三菱重工業株式会社 | Cylindrical blanket and blanket cylinder and printing press |
JP3674500B2 (en) * | 2000-11-24 | 2005-07-20 | 東洋製罐株式会社 | Method and apparatus for offset printing on cylindrical articles |
JP2002293057A (en) * | 2001-03-29 | 2002-10-09 | Mitsubishi Heavy Ind Ltd | Cylindrical blanket and printing machine |
ATE359912T1 (en) * | 2001-11-22 | 2007-05-15 | Koenig & Bauer Ag | METHOD FOR OPERATING A PRINTING UNIT |
DE10218359B4 (en) | 2002-04-25 | 2007-06-14 | Koenig & Bauer Aktiengesellschaft | Use of an ink |
JP2004262212A (en) * | 2003-03-04 | 2004-09-24 | Sumitomo Rubber Ind Ltd | Printing blanket |
-
2004
- 2004-12-14 EP EP06116409A patent/EP1707355B1/en not_active Not-in-force
- 2004-12-14 US US10/582,606 patent/US7533608B2/en not_active Expired - Fee Related
- 2004-12-14 JP JP2006538872A patent/JP2007511389A/en active Pending
- 2004-12-14 WO PCT/EP2004/053457 patent/WO2005058601A2/en active Application Filing
- 2004-12-14 EP EP04804815A patent/EP1694505B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1694505B1 (en) | 2010-08-04 |
JP2007511389A (en) | 2007-05-10 |
US7533608B2 (en) | 2009-05-19 |
EP1694505A2 (en) | 2006-08-30 |
EP1707355A2 (en) | 2006-10-04 |
WO2005058601A3 (en) | 2007-01-18 |
WO2005058601A2 (en) | 2005-06-30 |
EP1707355A3 (en) | 2007-07-25 |
US20070144380A1 (en) | 2007-06-28 |
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