EP1275501A1 - Axially turnable printing device having an external cylindrical surface. - Google Patents
Axially turnable printing device having an external cylindrical surface. Download PDFInfo
- Publication number
- EP1275501A1 EP1275501A1 EP01117008A EP01117008A EP1275501A1 EP 1275501 A1 EP1275501 A1 EP 1275501A1 EP 01117008 A EP01117008 A EP 01117008A EP 01117008 A EP01117008 A EP 01117008A EP 1275501 A1 EP1275501 A1 EP 1275501A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hose
- support body
- layer
- printing device
- printing
- 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.)
- Withdrawn
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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
- B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
- B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer 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
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/16—Curved printing plates, especially 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
-
- 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
Definitions
- the invention relates to an axially rotatable printing device with a cylindrical External surface, in particular for use in offset printing machines according to the generic term of claim 1, a method for producing such a printing device according to claim 6 and a device for performing the method according to Claim 11.
- DE-OS 30 27 549 is a printing blanket made of an elastic, compressible Known pressure element with closed-cell foam.
- To the closed cell Foam-containing layer closes in the direction of the impression cylinder stabilizing layer for a slight change in length in the machine direction provides. Under certain circumstances, such a layer can be provided by an adhesive layer to replace the blanket on the transfer cylinder.
- the invention has for its object a printing device and a method for Manufacturing such develop further in that relatively easy Manufacturing lasting high quality product properties without being backed up to use stabilizing layers within the layer structure.
- the object is achieved on the one hand in that on a Printing device according to the preamble of claim 1 of the support body surface stable formed and the elastomer intermediate layer and / or the pressure layer as Prefabricated hose is integrated in the printing device.
- the object is achieved according to the invention by a method in which a Supporting body, optionally a microporous and / or compressible elastomer intermediate layer, a printing layer and possibly further layers are connected, wherein at least one of the layers in the form of a prefabricated hose on the support body or the adjoining layer is pushed on axially and connected to this or this becomes.
- the invention is associated with the advantage that the hose before it is part of the Printing device will be awarded, defined product properties that prove to be Find the properties of the relevant layer formed from the hose. Becomes The hose is made in excess length, which means that the axial length of the hose greater than the axial length of the layer formed from the tube in the Printing device is, so can at the ends of the hose in the manufacture of the same occurring inhomogeneities by separating the end areas, if necessary also after the Introducing the hose into the pressure device can be eliminated.
- the support body be a tube, a sleeve or a roller body.
- the hose is preferably made of rubber or rubber-like or rubber-containing Materials formed.
- the hose is expediently made of NBR or EPDM or contains these materials in certain proportions by weight.
- the support body can consist of fiber-reinforced composites, such as GRP.
- the prefabricated hose is expanded in an expedient procedure and pushed on at a distance to the adjacent layer or to the supporting body.
- the hose expediently on the layer or on the support body to the system brought.
- the hose can be under radial prestress on the support body or on the apply to the layer adjacent to the inside. Such a bias results for example from the internal tension of the hose or from a tension in the hose, which has been generated by temperature differences.
- the hose can be vulcanized and, if necessary, opened a predetermined thickness, preferably by grinding.
- a certain pre-assembly of the Hose for example, by using pre-structured polymers come or materials are used that a vulcanization or Vulcanization are accessible.
- An inventive device for performing the method consists of a hollow cylindrical shaped body and a pressure difference generating means, wherein about the pressure difference generating means is a differential pressure between the interior of the Hose and its external environment is generated such that the outer wall of the Hose comes to rest on the inner wall of the hollow cylindrical shaped body.
- a non-woven Liner may be provided.
- a support body 1 in which it can be, for example, a nickel sleeve, cleaned and with a Adhesion promoter provided.
- a hose 2 is produced on the Basis of a suitable material using a piston press, such as a polymer, one Elastomer or thermoplastic elastomer.
- the elastomers or thermoplastic Elastomers can be vulcanized or applied to the support body 1 before application be vulcanized. Polymers can have a pre-structuring.
- the support body 1 is provided with further layers, in particular with an outer layer Printing layer.
- the finished body is vulcanized and, if necessary, a defined thickness is removed from the outer surface.
Landscapes
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
Die Erfindung betrifft eine axial drehbewegliche Druckeinrichtung mit zylinderförmiger Außenfläche, insbesondere zur Verwendung in Offset-Druckmaschinen gemäß Oberbegriff des Patentanspruchs 1, ein Verfahren zur Herstellung einer solchen Druckeinrichtung gemäß Anspruch 6 und eine Einrichtung zur Durchführung des Verfahrens gemäß Anspruch 11.The invention relates to an axially rotatable printing device with a cylindrical External surface, in particular for use in offset printing machines according to the generic term of claim 1, a method for producing such a printing device according to claim 6 and a device for performing the method according to Claim 11.
Aus der DE-OS 30 27 549 ist ein Drucktuch aus einem elastischen, zusammendrückbaren Druckelement mit geschlossenzelligem Schaum bekannt. An die den geschlossenzelligen Schaum enthaltende Schicht schließt sich in Richtung auf den Druckzylinder eine stabilisierende Schicht an, die für eine nur geringe Längenänderung in Maschinenrichtung sorgt. Eine solche Schicht kann unter bestimmten Umständen durch eine Klebeschicht ersetzt werden, um das Drucktuch auf dem Übertragungszylinder zu befestigen.From DE-OS 30 27 549 is a printing blanket made of an elastic, compressible Known pressure element with closed-cell foam. To the closed cell Foam-containing layer closes in the direction of the impression cylinder stabilizing layer for a slight change in length in the machine direction provides. Under certain circumstances, such a layer can be provided by an adhesive layer to replace the blanket on the transfer cylinder.
Eine solche Lösung ist auf die Schaffung reproduzierbarer Produkteigenschaften gerichtet, wobei die stabilisierende Schicht die entscheidende Möglichkeit zur Verbesserung der Eigenschaften darstellt.Such a solution is aimed at creating reproducible product properties, the stabilizing layer being the crucial way to improve the Represents properties.
Der Erfindung liegt die Aufgabe zugrunde, eine Druckeinrichtung und ein Verfahren zur Herstellung einer solchen dahingehend weiterzuentwickeln, dass bei relativ einfacher Herstellung dauerhaft hochwertige Produkteigenschaften gesichert werden, ohne auf stabilisierende Schichten innerhalb des Schichtaufbaues zurückzugreifen.The invention has for its object a printing device and a method for Manufacturing such develop further in that relatively easy Manufacturing lasting high quality product properties without being backed up to use stabilizing layers within the layer structure.
Die Aufgabe wird erfindungsgemäß einerseits dadurch gelöst, dass an einer Druckeinrichtung gemäß Oberbegriff des Anspruchs 1 der Tragkörper oberflächenstabil ausgebildet und die Elastomer-Zwischenschicht und/oder die Druckschicht als vorgefertigter Schlauch in die Druckeinrichtung integriert ist. The object is achieved on the one hand in that on a Printing device according to the preamble of claim 1 of the support body surface stable formed and the elastomer intermediate layer and / or the pressure layer as Prefabricated hose is integrated in the printing device.
Des Weiteren wird die Aufgabe erfindungsgemäß durch ein Verfahren gelöst, bei dem ein Tragkörper, gegegebenenfalls eine mikroporöse und/oder kompressible Elastomer-Zwischenschicht, eine Druckschicht und ggfs. weitere Schichten verbunden werden, wobei mindestens eine der Schichten in Form eines vorgefertigten Schlauches auf den Tragkörper oder die angrenzende Schicht axial aufgeschoben und mit diesem oder dieser verbunden wird.Furthermore, the object is achieved according to the invention by a method in which a Supporting body, optionally a microporous and / or compressible elastomer intermediate layer, a printing layer and possibly further layers are connected, wherein at least one of the layers in the form of a prefabricated hose on the support body or the adjoining layer is pushed on axially and connected to this or this becomes.
Die Erfindung ist mit dem Vorteil verbunden, dass dem Schlauch, bevor er Bestandteil der Druckeinrichtung wird, definierte Produkteigenschaften verliehen werden, die sich als Eigenschaften der betreffenden, aus dem Schlauch gebildeten Schicht wiederfinden. Wird der Schlauch in Überlänge gefertigt, was bedeutet, dass die axiale Länge des Schlauches größer als die axiale Länge der aus dem Schlauch gebildeten Schicht in der Druckeinrichtung ist, so können an den Enden des Schlauches bei der Fertigung desselben auftretende Inhomogenitäten durch Abtrennen der Endbereiche, ggfs. auch nach dem Einbringen des Schlauches in die Druckeinrichtung, eliminiert werden.The invention is associated with the advantage that the hose before it is part of the Printing device will be awarded, defined product properties that prove to be Find the properties of the relevant layer formed from the hose. Becomes The hose is made in excess length, which means that the axial length of the hose greater than the axial length of the layer formed from the tube in the Printing device is, so can at the ends of the hose in the manufacture of the same occurring inhomogeneities by separating the end areas, if necessary also after the Introducing the hose into the pressure device can be eliminated.
Gemäß einer zweckmäßigen Ausführung der Erfindung kann es sich bei dem Tragkörper um ein Rohr, eine Hülse oder einen Walzenkörper handeln.According to an expedient embodiment of the invention, it can be the support body be a tube, a sleeve or a roller body.
Der Schlauch wird bevorzugt aus Kautschuk oder kautschukähnlichen bzw. -haltigen Materialien gebildet. Dabei besteht der Schlauch zweckmäßig aus NBR oder EPDM oder enthält diese Materialien in bestimmten Gewichtsanteilen.The hose is preferably made of rubber or rubber-like or rubber-containing Materials formed. The hose is expediently made of NBR or EPDM or contains these materials in certain proportions by weight.
Der Tragkörper kann aus faserverstärkten Verbundstoffen, wie GFK, bestehen.The support body can consist of fiber-reinforced composites, such as GRP.
In zweckmäßiger Verfahrensdurchführung wird der vorgefertigte Schlauch aufgeweitet und mit Abstand zur angrenzenden Schicht oder zum Tragkörper aufgeschoben. Nach erfolgter axialer Positionierung auf der angrenzenden Schicht oder dem Tragkörper wird der Schlauch zweckmäßiger Weise auf der Schicht oder am Tragkörper zur Anlage gebracht. Dabei kann der Schlauch unter radialer Vorspannung am Tragkörper oder an der nach innen angrenzenden Schicht anliegen. Eine solche Vorspannung resultiert beispielsweise aus der Eigenspannung des Schlauches oder aber auch aus einer Spannung im Schlauch, die durch Temperaturdifferenzen erzeugt worden ist.The prefabricated hose is expanded in an expedient procedure and pushed on at a distance to the adjacent layer or to the supporting body. To axial positioning on the adjacent layer or the support body the hose expediently on the layer or on the support body to the system brought. The hose can be under radial prestress on the support body or on the apply to the layer adjacent to the inside. Such a bias results for example from the internal tension of the hose or from a tension in the hose, which has been generated by temperature differences.
In weiterer Ausgestaltung des Verfahrens kann der Schlauch vulkanisiert und ggfs. auf einer vorgegebenen Dicke, vorzugsweise durch Schleifen, reduziert werden.In a further embodiment of the method, the hose can be vulcanized and, if necessary, opened a predetermined thickness, preferably by grinding.
Es liegt weiterhin im Rahmen der Erfindung eine bestimmte Vorkonfektionierung des Schlauches zu bewirken, indem beispielsweise vorstrukturierte Polymere zum Einsatz kommen oder aber Materialien eingesetzt werden, die einer Anvulkanisation oder Ausvulkanisation zugänglich sind.It is also within the scope of the invention a certain pre-assembly of the Hose, for example, by using pre-structured polymers come or materials are used that a vulcanization or Vulcanization are accessible.
Eine erfindungsgemäße Einrichtung zur Durchführung des Verfahrens besteht aus einem hohlzylindrischem Formkörper und einem Druckdifferenz-Erzeugungsmittel, wobei über das Druckdifferenz-Erzeugungsmittel ein Differenzdruck zwischen dem Innenraum des Schlauches und dessen Außenumgebung derart erzeugt wird, dass die Außenwandung des Schlauches an der Innenwand des hohlzylindrischen Formkörpers zur Anlage kommt.An inventive device for performing the method consists of a hollow cylindrical shaped body and a pressure difference generating means, wherein about the pressure difference generating means is a differential pressure between the interior of the Hose and its external environment is generated such that the outer wall of the Hose comes to rest on the inner wall of the hollow cylindrical shaped body.
Zweckmäßig wird dabei zwischen der Innenwand des Hohlzylinders und dem Schlauch ein Unterdruck aufgebaut.It is expedient to insert a between the inner wall of the hollow cylinder and the hose Negative pressure built up.
Zur Vergrößerung der Sogwirkung kann zwischen der Innenwand des hohlzylindrischen Formkörpers und der Außenwandung des Schlauches eine vorzugsweise vliesartige Zwischenlage vorgesehen sein.To increase the suction effect can be between the inner wall of the hollow cylindrical Shaped body and the outer wall of the hose is preferably a non-woven Liner may be provided.
Alternativ hierzu besteht die Möglichkeit beim Aufschieben des Schlauches auf den Tragkörper oder die angrenzende Schicht ein strömendes Gas zur Beabstandung des aufzuschiebenden Schlauches vom Tragkörper oder der betreffenden Schicht einzusetzen.Alternatively, there is the option of pushing the hose onto the Supporting body or the adjacent layer a flowing gas for spacing the insert hose to be pushed on from the supporting body or the relevant layer.
Die Erfindung soll nachfolgend anhand eines Ausführungsbeispieles näher erläuert werden. Es zeigt
- Fig. 1
- einen Tragkörper mit teilweise aufgeschobenem Schlauch.
- Fig. 1
- a support body with a partially pushed hose.
Zur Herstellung der erfindungsgemäßen Druckeinrichtung wird ein Tragkörper 1, bei dem
es sich beispielsweise um eine Nickelhülse handeln kann, gereinigt und mit einem
Haftvermittler versehen. Parallel hierzu erfolgt die Herstellung eines Schlauches 2 auf der
Grundlage eines geeigneten Materials mittels Kolbenpresse, etwa eines Polymers, eines
Elastomers oder thermoplastischen Elastomers. Die Elastomere oder thermoplastischen
Elastomere können vor dem Aufbringen auf den Tragkörper 1 anvulkanisiert oder
ausvulkanisiert sein. Polymere können eine Vorstrukturierung aufweisen.To produce the printing device according to the invention, a support body 1, in which
it can be, for example, a nickel sleeve, cleaned and with a
Adhesion promoter provided. In parallel to this, a
Zum Aufschieben des auf einem Stützrohr 3 befindlichen Schlauches 2 auf den Tragkörper
1 wird wie aus Fig. 1 ersichtlich ein strömendes Gas in den Bereich 4 zwischen dem hier
als Kautschuk vorliegenden Schlauch 2 und dem Tragkörper 1 gebracht, so dass während
des Aufschiebens eine Beabstandung des Schlauches 2 zum Tragkörper 1 erfolgt. Danach
wird der Tragkörper 1 mit weiteren Schichten versehen, insbesondere mit einer äußeren
Druckschicht. Abschließend wird der so konfektionierte Tragkörper vulkanisiert und ggf.
von der Außenoberfläche eine definierte Dicke abgetragen.For pushing the
Claims (14)
dadurch gekennzeichnet, dass
der Tragkörper oberflächenstabil ausgebildet ist und dass die Elastomer-Zwischenschicht und/oder die Druckschicht als vorgefertigter Schlauch in die Druckeinrichtung integriert ist.Axially rotatable printing device with a cylindrical outer surface, in particular for use in offset printing presses, with a support body, optionally a microporous, compressible elastomer intermediate layer and a printing layer,
characterized in that
the support body is surface-stable and that the elastomer intermediate layer and / or the pressure layer is integrated as a prefabricated hose in the printing device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01117008A EP1275501A1 (en) | 2001-07-12 | 2001-07-12 | Axially turnable printing device having an external cylindrical surface. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01117008A EP1275501A1 (en) | 2001-07-12 | 2001-07-12 | Axially turnable printing device having an external cylindrical surface. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1275501A1 true EP1275501A1 (en) | 2003-01-15 |
Family
ID=8178031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01117008A Withdrawn EP1275501A1 (en) | 2001-07-12 | 2001-07-12 | Axially turnable printing device having an external cylindrical surface. |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1275501A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007008719A1 (en) * | 2007-02-22 | 2008-08-28 | Man Roland Druckmaschinen Ag | Transfer cylinder for web-fed rotary printing press, has casing realized as thick-walled and lightweight construction, where surface of casing is coated with rubber layer, so that casing serves as transfer form |
WO2009010123A1 (en) * | 2007-07-13 | 2009-01-22 | Trelleborg Engineered Systems Italy S.P.A. | Coating for a printing machine blanket cylinder, cylinder with such coating built in, machine with such cylinder built in, and method for positioning a blanket cylinder in a printing machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3027549A1 (en) * | 1979-07-20 | 1981-02-05 | Grace W R & Co | PRINTED CLOTH FROM AN ELASTIC, COMPRESSIBLE PRINTING ELEMENT WITH CLOSED CELL FOAM, METHOD FOR THE PRODUCTION THEREOF AND PRINTING METHOD USING THE PRINTED CLOTH |
EP0819550A2 (en) * | 1996-07-16 | 1998-01-21 | MAN Roland Druckmaschinen AG | Rubber sleeve for rotary offset printing presses |
EP1110748A1 (en) * | 1999-12-21 | 2001-06-27 | Heidelberger Druckmaschinen Aktiengesellschaft | Printing blanket with isotropic reinforcing layer |
-
2001
- 2001-07-12 EP EP01117008A patent/EP1275501A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3027549A1 (en) * | 1979-07-20 | 1981-02-05 | Grace W R & Co | PRINTED CLOTH FROM AN ELASTIC, COMPRESSIBLE PRINTING ELEMENT WITH CLOSED CELL FOAM, METHOD FOR THE PRODUCTION THEREOF AND PRINTING METHOD USING THE PRINTED CLOTH |
EP0819550A2 (en) * | 1996-07-16 | 1998-01-21 | MAN Roland Druckmaschinen AG | Rubber sleeve for rotary offset printing presses |
EP1110748A1 (en) * | 1999-12-21 | 2001-06-27 | Heidelberger Druckmaschinen Aktiengesellschaft | Printing blanket with isotropic reinforcing layer |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007008719A1 (en) * | 2007-02-22 | 2008-08-28 | Man Roland Druckmaschinen Ag | Transfer cylinder for web-fed rotary printing press, has casing realized as thick-walled and lightweight construction, where surface of casing is coated with rubber layer, so that casing serves as transfer form |
WO2009010123A1 (en) * | 2007-07-13 | 2009-01-22 | Trelleborg Engineered Systems Italy S.P.A. | Coating for a printing machine blanket cylinder, cylinder with such coating built in, machine with such cylinder built in, and method for positioning a blanket cylinder in a printing machine |
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