EP0598268B1 - Installation for compensating deflection of an intaglio printing-form cylinder - Google Patents
Installation for compensating deflection of an intaglio printing-form cylinder Download PDFInfo
- Publication number
- EP0598268B1 EP0598268B1 EP93117647A EP93117647A EP0598268B1 EP 0598268 B1 EP0598268 B1 EP 0598268B1 EP 93117647 A EP93117647 A EP 93117647A EP 93117647 A EP93117647 A EP 93117647A EP 0598268 B1 EP0598268 B1 EP 0598268B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intaglio
- forme cylinder
- ink
- contact pressure
- pressure 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
- 238000009434 installation Methods 0.000 title 1
- 238000007639 printing Methods 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/06—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders
- B41F31/07—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders for rotogravure
-
- 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
- B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/06—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders
Definitions
- the invention relates to an intaglio printing unit according to the preamble of claim 1.
- impression roller coated with a rubber or plastic cover on the forme cylinder, in order to achieve an intensive conforming of the printing material surface to the forme cylinder when printing is started.
- An impression roller of a rotogravure printing press is known from DE 37 10 724 C.
- the impression roller consists of a rotatable tubular jacket, in which a cylindrical support with hydraulically actuated support elements that run in the axial direction and rest on the inside of the jacket is arranged.
- a disadvantage of such designs of impression rollers is that the forme cylinder deflects when it has a greater length, ie printing width, and a smaller circumference. This deflection is disadvantageous in that the paper web is stretched in the middle and misalignment occurs. This has an adverse effect on paper web transport and on the quality of the print. Furthermore, there is both the trend towards large printing widths in gravure printing machines and sometimes the need for smaller cylinder sizes, e.g. B. only four printed pages per cylinder circumference. With such small volumes and large printing widths, it is no longer possible to introduce a sufficiently large counter-bending moment into the jacket of the forme cylinder in order to reduce the deflection to an acceptable level.
- EP-A-0 477 768 shows an intaglio inking unit according to the preamble of claim 1. It has a inking roller which is immersed in the ink of the height-displaceable ink pan. The inking roller is in contact with the side of the forme cylinder.
- GB-A-2 087 795 proposes adapting the deflection of two interacting cylinders to one another in a printing press.
- a roller is deformed by exerting a force on a pressure roller so that it adapts to the deformation of the other roller.
- the invention has for its object a To create a device for compensating the deflection of a rotogravure forme cylinder of a rotary printing press, which enables high-quality multi-color printing even with a large printing width and a small diameter of the forme cylinder.
- the invention has the following advantages in particular.
- the arrangement of an additional pressure roller when using simple forme cylinder constructions, has made it possible to use both forme cylinders for a large printing width and with a small circumference or a small diameter, without any loss of quality in one Multi-color printing occurs, inter alia, that better proofing takes place over the entire printing width.
- the arrangement of complex support elements inside the cylinder can be dispensed with.
- a forme cylinder 1 for intaglio printing is arranged via its axle journals 2, 3 and bearings 4, 5 in side walls 7, 8 of a machine frame.
- a known impression roller 9 which can be adjusted to the forme cylinder 1 and is connected to vertically running guide spindles via its axle journals 11, 12 and bearing shoes (not shown). Such an adjustment device is such.
- Rotation centers 10, 15 of the forme cylinder 1 and the pressure roller 16 can lie both on a vertical 18 and on a straight line 20 or 20.1, which run at an angle ⁇ ⁇ , preferably in the range from 2 ° to 10 ° to the vertical 18.
- the angle ⁇ has its origin in the center of rotation 10 of the forme cylinder 1.
- the angle + ⁇ relates to a direction of rotation of the forme cylinder 1 in the clockwise direction.
- the angle - ⁇ extends counterclockwise and corresponds to the arrangement of the pressure roller 16 when the direction of rotation of the forme cylinder 1 is reversed.
- the arc length of the angle + ⁇ or - ⁇ on the jacket 6 of the forme cylinder 1 in the circumferential direction corresponds to a maximum of half the diameter of the pressure roller 16.
- the pressure roller 16 runs axially parallel to the forme cylinder 1 and symmetrically to a line of symmetry 17 of the forme cylinder 1, which runs along the section line II - II, perpendicularly.
- the length l of the pressure roller 16 is less than the length l1 of the forme cylinder 1 and preferably moves in the range of 0.1 to 0.6 times the bale length l1 of the forme cylinder 1.
- the pressure roller 16 can also be arranged in the axial direction, corresponding to its length l, asymmetrically to the line of symmetry 17 below the forme cylinder 1 in accordance with the printing requirements be. This could be done by a guide, not shown, e.g. B. a known dovetail guide can be achieved with locking.
- the inking roller 19 has the same length as the barrel length l1 of the forme cylinder 1. Both rollers 16, 19 have a coating.
- the coating of the pressure roller 16 consists of a coating suitable for power transmission, for. B. made of plastic or rubber and has a hardness of greater than 70 ° Shore A and thereby prevents damage to the hard surface of the forme cylinder. 1
- the inking roller 19 is preferably not driven separately and has an absorbent coating, e.g. B. from terry cloth for receiving color 14 from the ink tray 13 and for delivery to the forme cylinder 1.
- the storage of the rollers 16, 19 is based on the bottom surface of the ink tray 13 each on bearing blocks 22, 23, 24, 25.
- the bearing blocks 22 to 25 are each positively arranged on the bottom surface 21 of the ink pan 13.
- compression springs 27, z. B. in the form of steel springs or pneumatic or hydraulic springs in the form of cylinders, so that the rollers 16, 19 always bear against the jacket 6 of the forme cylinder 1 under prestress.
- the ink tray 13 has on its bottom surface 21 a reinforcing plate 28 against which a lifting device 32 consisting of two plungers 29, 31 which can be actuated hydraulically in the direction of the vertical 18 acts.
- the lifting device 32 is designed in a known manner according to the hydraulic lift principle and can also have only one of the punches 29, 31, but then in a central arrangement.
- the lifting device 32 can alternatively be driven by other known hydraulic, mechanical or pneumatic means.
- a limit switch 26 ensures that the stroke of the lifting device 32 is limited.
- the pressure roller 16 instead of the springs 27, which are arranged between the bearing blocks 22, 23 and the bottom surface 21, the pressure roller 16 can also have a separate pneumatic adjustment system arranged in the ink pan 13, so that the pressure roller 16 can only be actuated if necessary and directly.
- the pressure roller 16 can also be non-positively with a separate drive, for. B. be provided with an engine.
- the ink tray 13 can be surrounded by an overflow trough, not shown, which picks up the ink 14 overflowing from the ink tray 13 and supplies it to the ink tray 13 again via a pump system.
- a doctor device on the forme cylinder 1 is designated 33.
- a paper web running between the impression roller 9 and the forme cylinder 1 in the direction of the arrow is designated by 34.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
Die Erfindung betrifft eine Tiefdruck-Einheit entsprechend dem Oberbegriff des Patentanspruches 1.The invention relates to an intaglio printing unit according to the preamble of claim 1.
Es ist bekannt, zwecks Kompensation der Durchbiegung eines Tiefdruckformzylinders einen mit einem Gummi- oder Kunststoffbezug beschichteten Presseur auf dem Formzylinder anzuordnen, um somit bei Druckanstellung eine intensive Anschmiegung der Bedruckstoffoberfläche an den Formzylinder zu erreichen. Ein derartiger Presseur einer Tiefdruckrotationsmaschine ist aus der DE 37 10 724 C bekannt. Der Presseur besteht aus einem drehbaren rohrförmigen Mantel, in welchem ein zylinderförmiger Träger mit in axialer Richtung verlaufenden und innen an dem Mantel anliegenden hydraulisch betätigbaren Stützelementen angeordnet ist.It is known, in order to compensate for the deflection of a gravure forme cylinder, to arrange an impression roller coated with a rubber or plastic cover on the forme cylinder, in order to achieve an intensive conforming of the printing material surface to the forme cylinder when printing is started. Such an impression roller of a rotogravure printing press is known from DE 37 10 724 C. The impression roller consists of a rotatable tubular jacket, in which a cylindrical support with hydraulically actuated support elements that run in the axial direction and rest on the inside of the jacket is arranged.
Nachteilig bei derartigen Ausbildungen von Presseuren ist, daß es zur Durchbiegung des Formzylinders dann kommt, wenn dieser eine größere Länge, d. h. Druckbreite, und einen geringeren Umfang besitzt. Diese Durchbiegung wirkt sich insofern nachteilig aus, als daß die Papierbahn mittig gestreckt wird und Passerversatz auftritt. Dies hat eine nachteilige Wirkung auf den Papierbahntransport und auf die Qualität des Druckes. Weiterhin besteht sowohl der Trend zu großen Druckbreiten bei Tiefdruckmaschinen als auch mitunter die Notwendigkeit mit kleineren Zylinderumfängen, z. B. nur vier Druckseiten pro Zylinderumfang zu arbeiten. Bei solchen geringen Umfängen und großen Druckbreiten ist es nicht mehr möglich, ein ausreichend großes Gegenbiegemoment in den Mantel des Formzylinders einzuleiten, um die Durchbiegung auf ein vertretbares Maß zu verringern.A disadvantage of such designs of impression rollers is that the forme cylinder deflects when it has a greater length, ie printing width, and a smaller circumference. This deflection is disadvantageous in that the paper web is stretched in the middle and misalignment occurs. This has an adverse effect on paper web transport and on the quality of the print. Furthermore, there is both the trend towards large printing widths in gravure printing machines and sometimes the need for smaller cylinder sizes, e.g. B. only four printed pages per cylinder circumference. With such small volumes and large printing widths, it is no longer possible to introduce a sufficiently large counter-bending moment into the jacket of the forme cylinder in order to reduce the deflection to an acceptable level.
Die EP-A-0 477 768 zeigt ein Tiefdruckfarbwerk gemäß dem Oberbegriff des Anspruchs 1. Bei ihm ist eine in die Druckfarbe der höhenverschiebbaren Farbwanne eintauchende Einfärbewalze vorgesehen. Die Einfärbewalze steht seitlich mit dem Formzylinder in Berührung.EP-A-0 477 768 shows an intaglio inking unit according to the preamble of claim 1. It has a inking roller which is immersed in the ink of the height-displaceable ink pan. The inking roller is in contact with the side of the forme cylinder.
Aus der DE-A-14 60 785 ist bekannt, einen Plattenzylinder mittels Stützwalzen an seiner Außen- oder Innenfläche abzustützen und so ungewünschte Durchbiegungen des Plattenzylinders zu kompensieren.From DE-A-14 60 785 it is known to support a plate cylinder by means of support rollers on its outer or inner surface and thus to compensate for undesired deflections of the plate cylinder.
In der GB-A-2 087 795 wird vorgeschlagen, in einer Druckmaschine die Durchbiegung von zwei zusammenwirkenden Zylindern aneinander anzupassen. Hierzu wird eine Walze durch Ausüben einer Kraft über eine Andrückwalze so verformt, daß sie sich der Verformung der anderen Walze anpaßt.GB-A-2 087 795 proposes adapting the deflection of two interacting cylinders to one another in a printing press. For this purpose, a roller is deformed by exerting a force on a pressure roller so that it adapts to the deformation of the other roller.
Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zum Kompensieren der Durchbiegung eines Tiefdruckformzylinders einer Rotationsdruckmaschine zu schaffen, welche auch bei einer großen Druckbreite und einem geringen Durchmesser des Formzylinders einen qualitätsgerechten Mehrfarbendruck ermöglicht.The invention has for its object a To create a device for compensating the deflection of a rotogravure forme cylinder of a rotary printing press, which enables high-quality multi-color printing even with a large printing width and a small diameter of the forme cylinder.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Kennzeichens des Patentanspruches 1 gelöst.According to the invention, this object is achieved by the features of the characterizing part of patent claim 1.
Durch die Erfindung ergeben sich insbesondere folgende Vorteile. Durch die Anordnung einer zusätzlichen Andrückwalze ist es bei der Verwendung einfacher Formzylinderkonstruktionen möglich geworden, sowohl Formzylinder für eine große Druckbreite als auch mit einem geringen Umfang bzw. einem geringen Durchmesser einzusetzen, ohne daß Qualitätsverluste bei einem Mehrfarbendruck eintreten, u. a. dadurch, daß ein besserer Andruck über die gesamte Druckbreite erfolgt. Beim Transport der Papierbahn wird ein Verzug der Papierbahn infolge fehlender Durchbiegung des Formzylinders vermieden. Somit besteht auch eine bessere Registerhaltigkeit. Es kann auf die Anordnung von aufwendigen Stützelementen im Zylinderinneren verzichtet werden.The invention has the following advantages in particular. The arrangement of an additional pressure roller, when using simple forme cylinder constructions, has made it possible to use both forme cylinders for a large printing width and with a small circumference or a small diameter, without any loss of quality in one Multi-color printing occurs, inter alia, that better proofing takes place over the entire printing width. When the paper web is transported, warping of the paper web due to the lack of deflection of the forme cylinder is avoided. This means that there is also better register accuracy. The arrangement of complex support elements inside the cylinder can be dispensed with.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert. In den dazugehörigen Zeichnungen zeigen
- Fig. 1
- eine schematische Vorderansicht eines Tiefdruckfarbwerkes;
- Fig. 2
- einen Schnitt II - II nach Fig. 1.
- Fig. 1
- a schematic front view of an intaglio inking unit;
- Fig. 2
- a section II - II of FIG. 1st
Ein Formzylinder 1 für Tiefdruck ist über seine Achszapfen 2, 3 und Lager 4, 5 in Seitenwänden 7, 8 eines Maschinengestells angeordnet. Oberhalb des Formzylinders 1 ist ein an den Formzylinder 1 anstellbarer bekannter Presseur 9 vorgesehen, welcher über seine Achszapfen 11, 12 und nicht dargestellte Lagerschuhe mit vertikal verlaufenden Führungsspindeln verbunden ist. Eine derartige Anstellvorrichtung ist z. B. in der DE 28 22 531 A dargestellt. Unterhalb des Formzylinders 1 befindet sich eine Farbwanne 13, welche neben Druckfarbe 14 noch eine von unten an eine Mantelfläche 6 des Formzylinders 1 anstellbare Andrückwalze 16 aufnimmt. Dabei können Rotationszentren 10, 15 des Formzylinders 1 sowie der Andrückwalze 16 sowohl auf einer Senkrechten 18 liegen als auch auf einer Geraden 20 oder 20.1, welche in einem Winkel ±α , vorzugsweise im Bereich von 2° bis 10° zur Senkrechten 18 verlaufen. Der Winkel α hat seinen Ursprung im Rotationszentrum 10 des Formzylinders 1. Der Winkel +α bezieht sich auf eine Drehrichtung des Formzylinders 1 im Uhrzeigersinn. Der Winkel -α erstreckt sich entgegen dem Uhrzeigersinn und entspricht der Anordnung der Andrückwalze 16 bei Drehrichtungsumkehr des Formzylinders 1. Die Bogenlänge des Winkels +α oder -α auf dem Mantel 6 des Formzylinders 1 in Umfangsrichtung entspricht maximal dem halben Durchmesser der Andrückwalze 16. Entsprechend Fig. 1 verläuft die Andrückwalze 16 achsparallel zum Formzylinder 1 und symmetrisch zu einer an der Schnittlinie II - II entlang, senkrecht verlaufenden Symmetrielinie 17 des Formzylinders 1. Die Länge l der Andrückwalze 16 ist kleiner als die Länge l1 des Formzylinders 1 und bewegt sich vorzugsweise im Bereich des 0,1 bis 0,6-fachen der Ballenlänge l1 des Formzylinders 1. Die Andrückwalze 16 kann in einer alternativen Ausführung auch in axialer Richtung, entsprechend ihrer Länge l, entsprechend den drucktechnischen Erfordernissen asymmetrisch zur Symmetrielinie 17 unterhalb des Formzylinders 1 angeordnet sein. Dies könnte durch eine nicht dargestellte Führung, z. B. eine bekannte Schwalbenschwanzführung mit Arretierung erreicht werden.A forme cylinder 1 for intaglio printing is arranged via its
Außerhalb der Senkrechten 18, jedoch seitlich neben der Andrückwalze 16 befindet sich eine bekannte Farbauftragswalze 19, welche die Farbe 14 zur Oberfläche des Formzylinders 1 überträgt. Die Farbauftragwalze 19 weist die gleiche Länge auf wie die Ballenlänge l1 des Formzylinders 1. Beide Walzen 16, 19 besitzen einen Überzug. Der Überzug der Andrückwalze 16 besteht aus einem zur Kraftübertragung geeigneten Überzug, z. B. aus Kunststoff oder Gummi und weist eine Härte von größer 70° Shore A auf und verhindert dadurch eine Beschädigung der harten Oberfläche des Formzylinders 1.Outside the vertical 18, but laterally next to the
Die Farbauftragswalze 19 ist vorzugsweise nicht separat angetrieben und besitzt einen saugfähigen Überzug, z. B. aus Frottee-Gewebe zum Aufnehmen von Farbe 14 aus der Farbwanne 13 und zur Abgabe an den Formzylinder 1. Die Lagerung der Walzen 16, 19 stützt sich auf der Bodenfläche der Farbwanne 13 jeweils über Lagerböcke 22, 23, 24, 25 ab. Die Lagerböcke 22 bis 25 sind jeweils auf der Bodenfläche 21 der Farbwanne 13 formschlüssig angeordnet. Zwischen den Lagerböcken 22 bis 25 und dem Boden 21 befinden sich nicht näher dargestellte bekannte Druckfedern 27, z. B. in Form von Stahlfedern oder pneumatischen oder hydraulischen Federn in Form von Zylindern, so daß die Walzen 16, 19 stets unter Vorspannung am Mantel 6 des Formzylinders 1 anliegen.
In einer alternativen Ausführung ist es auch möglich, die zwischen den Lagerböcken 22, 23 der Andrückwalze 16 und der inneren Bodenfläche 21 der Farbwanne 13 angeordneten Federn 27 wegzulassen und die Lagerböcke 22, 23 formschlüssig mit der Bodenfläche 21 zu verbinden.The
In an alternative embodiment, it is also possible to arrange those between the
Die Farbwanne 13 weist an ihrer Bodenfläche 21 ein Verstärkungsblech 28 auf, gegen welches eine aus zwei hydraulisch in Richtung der Senkrechten 18 betätigbaren Stempeln 29, 31 bestehende Hubvorrichtung 32 wirkt. Die Hubvorrichtung 32 ist in bekannter Art nach dem hydraulischen Hebebühnenprinzip ausgeführt und kann auch nur einen der Stempel 29, 31 aufweisen, jedoch dann in mittiger Anordnung. Die Hubvorrichtung 32 kann alternativ auch mit anderen bekannten hydraulischen, mechanischen oder pneumatischen Mitteln angetrieben werden. Ein Endschalter 26 sorgt für die Begrenzung des Hubes der Hubvorrichtung 32. Die Andrückwalze 16 kann alternativ statt der Federn 27, die zwischen den Lagerböcken 22, 23 und der Bodenfläche 21 angeordnet sind, auch ein gesondertes, in der Farbwanne 13 angeordnetes pneumatisches Anstellsystem erhalten, so daß die Andrückwalze 16 nur im Bedarfsfall und direkt betätigbar ist. Weiterhin kann die Andrückwalze 16 auch kraftschlüssig mit einem separaten Antrieb, z. B. einem Motor versehen sein. Die Farbwanne 13 kann von einem nicht dargestellten Überlauftrog umgeben sein, der die aus der Farbwanne 13 überlaufende Farbe 14 aufnimmt und über ein Pumpsystem der Farbwanne 13 wieder zuleitet. Eine an den Formzylinder 1 angestellte Rakeleinrichtung ist mit 33 bezeichnet. Eine zwischen dem Presseur 9 und dem Formzylinder 1 in Pfeilrichtung durchlaufende Papierbahn ist mit 34 bezeichnet.The
- 11
- FormzylinderForme cylinder
- 22nd
- Achszapfen (1)Axle journal (1)
- 33rd
- Achszapfen (1)Axle journal (1)
- 44th
- Lagercamp
- 55
- Lagercamp
- 66
- Mantelfläche (1)Lateral surface (1)
- 77
- SeitenwandSide wall
- 88th
- SeitenwandSide wall
- 99
- PresseurImpressionist
- 1010th
- Rotationszentrum (1)Rotation center (1)
- 1111
- AchszapfenAxle journal
- 1212th
- AchszapfenAxle journal
- 1313
- FarbwannePaint tray
- 1414
- Farbecolour
- 1515
- Rotationszentrum (16)Rotation center (16)
- 1616
- AndrückwalzePressure roller
- 1717th
- SymmetrielinieLine of symmetry
- 1818th
- Senkrechtevertical
- 1919th
- FarbauftragwalzeInking roller
- 2020th
- GeradeJust
- 20.120.1
- GeradeJust
- 2121
- Bodenfläche (13)Base (13)
- 2222
- Lagerbock (16)Bearing block (16)
- 2323
- Lagerbock (16)Bearing block (16)
- 2424th
- Lagerbock (19)Bearing block (19)
- 2525th
- Lagerbock (19)Bearing block (19)
- 2626
- EndschalterLimit switch
- 2727
- Druckfeder (22, 23, 24, 25)Compression spring (22, 23, 24, 25)
- 2828
- Verstärkungsblech (13)Reinforcement plate (13)
- 2929
- Stempel (32)Stamp (32)
- 3030th
- --
- 3131
- Stempel (32)Stamp (32)
- 3232
- HubvorrichtungLifting device
- 3333
- RakeleinrichtungDoctor device
- 3434
- PapierbahnPaper web
- 3535
- --
- ll
- Länge (16)Length (16)
- l1l1
- Ballenlänge (1)Bale length (1)
- +α+ α
- Winkel (18, 20)Angle (18, 20)
- -α-α
- Winkel (18, 20.1)Angle (18, 20.1)
Claims (8)
- An intaglio printing unit having an intaglio forme cylinder (1) which dips into a raisable and lowerable ink trough (13) filled with printing ink and which cooperates with an impression cylinder, and having an ink-application roller (19) which dips into the printing ink and cooperates with the intaglio forme cylinder (1), characterized in that within the ink trough (13) there is arranged an axially extending rotatable contact pressure roller (16) which acts from below on the outer surface (6) of the intaglio forme cylinder (1), supporting the latter, and dips into the printing ink, in that the contact pressure cylinder (16) is mounted to be rotatable in bearing blocks (22; 23) which are connected in fixed or resilient manner to a base surface (21) of the ink trough (13), and in that the ink application roller (19) is arranged laterally with respect to the contact pressure roller (16).
- An intaglio printing unit according to Claim 1, characterized in that the length (l) of the contact pressure roller (16) is less than the surface length (l1) of the intaglio forme cylinder (1).
- An intaglio printing unit according to Claims 1 to 2, characterized in that the contact pressure roller (16) is displaceable in the axial direction within the surface length (l1) of the intaglio forme cylinder (1).
- An intaglio printing unit according to Claims 1 to 3, characterized in that the contact pressure roller (16) is drivable by a separate motor.
- An intaglio printing unit according to Claims 1 to 4, characterized in that the centres of rotation (10, 15) of the intaglio forme cylinder (1) and the contact pressure roller (16) lie on a common vertical (18).
- An intaglio printing unit according to Claims 1 to 5, characterized in that the centres of rotation (10, 15) of the forme cylinder (1) and the contact pressure roller (16) lie on a straight line (20; 20.1) which runs at an angle (± α), having its origin in the centre of rotation (10) of the intaglio forme cylinder (1), to a vertical (18).
- An intaglio printing unit according to Claims 1 to 6, characterized in that the ink trough (13) is arranged to be raisable and lowerable by means of lifting apparatus (32).
- An intaglio printing unit according to Claims 1 to 7, characterized in that the contact pressure cylinder (16) may be placed against the intaglio forme cylinder (1) by means of a placing system arranged in the ink trough (13).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4238054A DE4238054C2 (en) | 1992-11-11 | 1992-11-11 | Device for compensating the deflection of a gravure cylinder |
| DE4238054 | 1992-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0598268A1 EP0598268A1 (en) | 1994-05-25 |
| EP0598268B1 true EP0598268B1 (en) | 1997-04-23 |
Family
ID=6472622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93117647A Expired - Lifetime EP0598268B1 (en) | 1992-11-11 | 1993-10-30 | Installation for compensating deflection of an intaglio printing-form cylinder |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5454311A (en) |
| EP (1) | EP0598268B1 (en) |
| JP (1) | JP2726228B2 (en) |
| DE (2) | DE4238054C2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19701226B4 (en) * | 1997-01-16 | 2004-10-07 | Heidelberger Druckmaschinen Ag | Printing unit of an offset rotary printing machine |
| US6374731B1 (en) * | 1997-04-18 | 2002-04-23 | Heidelberger Druckmaschinen Ag | Lithographic newspaper printing press |
| DE19911180C2 (en) | 1999-03-12 | 2001-02-01 | Koenig & Bauer Ag | Printing unit for a rotary printing machine |
| ES2173832T3 (en) * | 2000-02-10 | 2002-11-01 | Fischer & Krecke Gmbh & Co | FRAME ROLLER FOR A FLEXOGRAPHIC PRINTING MACHINE. |
| DE10341709B4 (en) * | 2003-10-08 | 2007-09-20 | Koenig & Bauer Aktiengesellschaft | printing unit |
| CN103707636B (en) * | 2013-12-18 | 2016-01-20 | 陕西北人印刷机械有限责任公司 | A kind of intaglio plate stencils machine ink groove resetting means and control method thereof |
| CN106274031B (en) * | 2016-09-29 | 2018-07-27 | 安徽集友纸业包装有限公司 | Printing carries black device and gravure apparatus |
| CN112537117A (en) * | 2020-12-10 | 2021-03-23 | 黄山枘淼机电科技有限公司 | Adjustable large-radius double-roller printing equipment for web materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE604870C (en) * | 1934-10-30 | Linotype Machinery Ltd | Inking unit for rotogravure printing machines | |
| US1890922A (en) * | 1929-04-13 | 1932-12-13 | Edward A Waller | Multicolor printing press |
| DE1087443B (en) * | 1958-02-10 | 1960-08-18 | Kuesters Eduard | Roller press for the pressure treatment of goods, especially paper webs |
| GB1016131A (en) * | 1961-02-02 | 1966-01-05 | Almerindo Jamie Correia De Oli | Improvements relating to rotary machines for printing or coating fabrics or other sheet materials |
| DE1883014U (en) * | 1963-09-12 | 1963-11-21 | Benteler Werke Ag | PRESSURE ROLLER FOR GENERATING EVEN PRESSURE ALONG A PINCH JOINT OF A DEVICE FOR THE TREATMENT OF TRACKS. |
| CA782796A (en) * | 1965-03-09 | 1968-04-16 | A. Baker William | Rolling mill |
| US3793952A (en) * | 1972-07-25 | 1974-02-26 | Windmoeller & Hoelscher | Convertible printing mechanism for intaglio and flexographic printing |
| CA980624A (en) * | 1973-02-02 | 1975-12-30 | John C. Motter | Pressure roller device for a rotogravure printing press |
| US4132166A (en) * | 1977-10-07 | 1979-01-02 | Aldo Bugnone | Mounting for rotary cylinders, particularly in a printing press |
| DE2822531A1 (en) * | 1978-05-23 | 1979-11-29 | Frankenthal Ag Albert | Photogravure printing press form cylinder pressure system - has ram adjusted yoke shoes supported by screw and nut drive |
| JPS54156704A (en) * | 1978-05-30 | 1979-12-11 | Shiyougo Nagao | Relief printing plate and relief printing machine |
| DE2849202A1 (en) * | 1978-11-13 | 1980-05-14 | Frankenthal Ag Albert | CYLINDER FOR A PRINTING MACHINE |
| FI61147C (en) * | 1979-07-05 | 1982-06-10 | Waertsilae Oy Ab | ANORDNING VID DJUPTRYCKSMASKIN |
| GB2087797A (en) * | 1980-11-10 | 1982-06-03 | Dowling Simon Barrow | Improvements in printing presses |
| DE3218158C2 (en) * | 1982-05-14 | 1984-11-22 | Albert-Frankenthal Ag, 6710 Frankenthal | Cylinders for machines that process web material |
| JPS6368434U (en) * | 1986-10-24 | 1988-05-09 | ||
| CH671732A5 (en) * | 1986-11-07 | 1989-09-29 | Escher Wyss Ag | |
| JPS63143551A (en) * | 1986-12-08 | 1988-06-15 | Fuji Photo Film Co Ltd | Image recorder |
| JPH01158131U (en) * | 1988-04-25 | 1989-11-01 | ||
| US4901641A (en) * | 1988-11-30 | 1990-02-20 | Bobst Sa | Printing press |
| IT1230954B (en) * | 1989-06-30 | 1991-11-08 | Cerutti Spa Off Mec | PRINTING GROUP WITH RAPID REPLACEMENT PRINTER FORM. |
| DE4030377A1 (en) * | 1990-09-26 | 1992-04-16 | Frankenthal Ag Albert | INK FOR A PRINTING MACHINE |
| JPH0471250U (en) * | 1990-11-05 | 1992-06-24 | ||
| JP3031547U (en) * | 1996-05-09 | 1996-11-29 | 株式会社東京セロレーベル | Support sheet for overhead projector |
-
1992
- 1992-11-11 DE DE4238054A patent/DE4238054C2/en not_active Expired - Fee Related
-
1993
- 1993-10-30 DE DE59306258T patent/DE59306258D1/en not_active Expired - Fee Related
- 1993-10-30 EP EP93117647A patent/EP0598268B1/en not_active Expired - Lifetime
- 1993-11-10 US US08/149,787 patent/US5454311A/en not_active Expired - Fee Related
- 1993-11-10 JP JP5280978A patent/JP2726228B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59306258D1 (en) | 1997-05-28 |
| EP0598268A1 (en) | 1994-05-25 |
| DE4238054C2 (en) | 1996-07-11 |
| DE4238054A1 (en) | 1994-05-19 |
| US5454311A (en) | 1995-10-03 |
| JP2726228B2 (en) | 1998-03-11 |
| JPH06198839A (en) | 1994-07-19 |
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