EP1182036B1 - Device for adjusting at least a register element in a printing machine and corresponding method - Google Patents

Device for adjusting at least a register element in a printing machine and corresponding method Download PDF

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Publication number
EP1182036B1
EP1182036B1 EP01117919A EP01117919A EP1182036B1 EP 1182036 B1 EP1182036 B1 EP 1182036B1 EP 01117919 A EP01117919 A EP 01117919A EP 01117919 A EP01117919 A EP 01117919A EP 1182036 B1 EP1182036 B1 EP 1182036B1
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EP
European Patent Office
Prior art keywords
clamping rail
upper clamping
adjusting
register element
register
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
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EP01117919A
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German (de)
French (fr)
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EP1182036A1 (en
Inventor
Eckart Dr. Frankenberger
Ludwig Becker
Werner Weber
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP1182036A1 publication Critical patent/EP1182036A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/005—Attaching and registering printing formes to supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/40—Adjusting means for printing plates on the cylinder
    • B41P2227/42—Adjusting means for printing plates on the cylinder circumferentially

Definitions

  • the invention relates to a device for adjusting at least one register element in a printing press, with an upper clamping rail on which the register elements are mounted and a cooperating with the upper clamping rail clamping element according to the preamble of claim 1.
  • the invention relates to a method for adjusting at least one register element in a printing machine, according to the preamble of claim 8.
  • EP 0 596 337 B1 Devices and thus realizable method of the type mentioned here are known ( EP 0 596 337 B1 ).
  • the clamping rail is used in particular a sheetfed offset press to attach a printing plate to an associated plate cylinder. Due to adjusting, unwanted tolerances in the printing press and thus also on the plate cylinder, it is necessary to provide a positional adjustment of the register elements (register pins) with respect to a printing plate leading edge to be fixed.
  • the register elements each position relative to the clamping rail by means of a correspondingly formed fastening mechanism.
  • a device with the features of claim 1 is proposed, which is characterized in that the upper clamping rail for adjusting the register element in a guide is movable and fixed in position.
  • the guide is preferably designed such that it can compensate in any possible operating position of the clamping rail for fixing a pressure plate on the plate cylinder adjusting blocking forces.
  • the adjustment of the respective register element thus takes place by means of a suitable relative movement of the upper clamping rail relative to the plate cylinder, wherein the corresponding register element is fixed in position stable even during the adjustment of the upper clamping rail.
  • the clamping rail can be fixed in position on the plate cylinder by means of suitable clamping or tensioning means.
  • the guide is designed as a sliding guide and the upper clamping rail can be adjusted in position by means of an adjusting device in a sliding direction corresponding to the adjustment direction of the register element.
  • a sliding guide is manufacturing technology relatively easy to implement and is particularly suitable for compensating for fixing a pressure plate on the plate cylinder adjusting, with respect to the plate cylinder radial forces, at the same time a precise guidance of the upper clamping rail is ensured on the plate cylinder. This makes it possible to obtain a fast and correct adjustment of the respective register element by means of a defined position adjustment of the clamping rail by actuating a suitably designed adjusting device.
  • the adjusting device has at least one mechanical adjusting element for generating an adjusting force acting on the upper clamping rail. It can be provided as a mechanical adjusting element standing with the upper clamping rail in a suitable operative connection set screw, a wedge, an eccentric bolt or the like, by means of which an adjustment of the upper clamping rail in respect to the plate cylinder tangential direction can be achieved. Such a mechanical adjusting element is preferably operated manually.
  • the adjusting device has at least one electrical adjusting element for generating an adjusting force acting on the clamping rail.
  • the use of bundled piezoelectric actuators can be provided, by means of which an electrically releasable introduction of force into the upper clamping rail for positional adjustment thereof can be realized.
  • electrically actuatable adjusting elements are particularly suitable for the automated adjustment of the respective register element by means of a suitable, preferably central control unit.
  • clamping or clamping means are provided for fixing the position of the clamping rail.
  • Such, for locking or fixing the deformed or without elastic bending displaced clamping rail serving clamping or clamping means may be formed, for example, as a clamping screws. It is also possible to fix the position of the clamping rail by means of electrically operated clamping or To realize clamping means, so that an automated position fixation of the clamping rail by means of a preferably central control unit is possible.
  • the device is operatively connected to a central control unit.
  • a central control unit can be carried out using electrically actuatable adjusting elements and Lüfixierstoffn the clamping rail an automated and controlled adjustment of the respective register element.
  • the clamping rail consists of a plurality of relatively movable sub-segments, each containing at least one register element. This makes it possible, each guided position sub-segments of the upper clamping rail independently adjust, preferably against an elastic restoring force, for example, as a result of elastic bending of the corresponding sub-segment. It is thus a particularly flexible and preferably automated adjustment of the respective register element by means of a controlled movement of the corresponding sub-segment feasible.
  • Registered element proposed in a printing press which has the features of claim 8.
  • the inventive method is characterized in that an upper clamping rail, on which the register element is fixed, is moved to adjust the same in a guide and fixed in position.
  • This method according to the invention is suitable for achieving the advantages mentioned in relation to the device.
  • the clamping rail is adjusted in position in a sliding guide by means of an adjusting device in the adjustment direction of the register element.
  • a guided in a slide upper clamping rail is precisely positionally adjustable in a particularly reliable manner and is thus suitable for a finely adjustable register element adjustment.
  • the adjusting force acting on the clamping rail is generated mechanically. This can be done for example by means of a manual adjustment of appropriately trained adjusting elements.
  • the adjusting force acting on the upper clamping rail is generated electrically.
  • the adjusting elements used for this purpose can be controlled in a relatively simple manner by means of a central control unit, so that the adjustment of a respective register element can advantageously be automated.
  • the upper clamping rail is selectively fixed in position and at adjustment ranges, in which the register element is arranged and guided in the adjustment direction, elastically deformed and firmly tensioned in a stable position.
  • the movement and the position fixation of the upper clamping rail in the guide are preferably automated, and in particular by means of a central control unit.
  • any existing game between the upper clamping rail and a plate to be clamped pressure plate by means of suitably arranged measuring means (sensors) are determined and transmitted to the central control unit, which means a corresponding, automated positional adjustment of the upper clamping rail and thus a suitable positioning of the respective register element electrically controllable adjusting introduces.
  • the upper clamping rail consists of a plurality of sub-segments, which have at least one register element and are moved independently of each other and fixed in position.
  • FIG. 1 shows a schematic representation of a generally designated 10 clamping device for printing plates of a printing press.
  • the clamping device 10 is designed for adjusting (fine adjustment) of at least one register element 11.
  • the clamping device 10 is in operative connection with a plate cylinder 18 to which a pressure plate 19 aligned in a conventional manner to register elements 11 (register pins) and fastened (clamped) by means of the clamping device 10.
  • the clamping device 10 has an upper clamping rail 13, to which the register elements 11 are securely fastened.
  • the upper clamping rail 13 cooperates for printing plate clamping with a movable in the radial direction with respect to the plate cylinder clamping element 24 and is movable to adjust a respective register member 11 in a guide 14 and fixed in position.
  • the guide 14 is designed as a sliding guide in the form of a flat guide and suitable to compensate in relation to the plate cylinder 18 radial by means of the upper clamping rail 13 in the guide 14 introduced forces (opposing forces of the pressure plate clamping).
  • the clamping device 10 further includes an adjusting device 15, by means of which the upper clamping rail 13 in the guide 14 in a sliding direction according to the double arrow 16 is adjustable in position.
  • the sliding direction (double arrow 16) of the clamping rail 13 corresponds to the adjustment direction of a corresponding register element 11.
  • the adjusting device 15 indicates according to FIG. 1
  • FIG. 2 shows the clamping device 10 of FIG. 1 in a schematic plan view, with only the upper clamping rail 13 is shown.
  • the upper clamping rail 13 is by means of suitable fastening means 22, for example in the form of clamping screws, fixed to the not in FIG. 2 shown plate cylinder 18 (see also FIG. 1 ) are selectively operatively connected in a respective fixing region 27.
  • plate cylinder 18 see also FIG. 1
  • FIG. 3 shows an alternative embodiment of the clamping device 10 according to the invention, according to which the adjusting device 15 has an adjusting element 17 which is designed as a set screw.
  • the terminal block 13 in the guide 14 either according to double arrow 16 (in the drawing to the right) against an elastic restoring force (inherent elasticity of the upper clamping rail 13) positionally adjusted or due to this acting elastic restoring force (in the drawing to the left) moved back ,
  • an elastic restoring force inherent elasticity of the upper clamping rail 13
  • this acting elastic restoring force in the drawing to the left
  • the upper clamping rail 13 can be fixed in position at its center by means of suitable fastening means (for example screw connection) to the plate cylinder 18 (fixing region of the upper clamping rail 13) and elastically deformed or bent around its center at its two free longitudinal ends for the adjustment of spaced apart in the longitudinal direction of the upper clamping rail 13 arranged register elements 11 in relation to the plate cylinder 18 tangential adjustment (double arrow 16).
  • suitable fastening means for example screw connection
  • the two free longitudinal ends of the upper clamping rail 13 can be displaceably mounted, for example, by means of a dovetail guide extending along a corresponding circular path.
  • the upper clamping rail 13 also consist of a plurality of separate and mutually relatively movable sub-segments, each containing at least one register element 11. Each sub-segment is operatively connected by means of a corresponding guide with the plate cylinder 18.
  • the adjusting elements 17 are designed as electrically actuated piezoelectric elements, actuators or the like, which (not shown) may be in operative connection for automatic adjustment of the register elements 11 with a central control unit.
  • a deviation of a register cross directly from a central control unit in a corresponding adjustment of the leading and trailing edges of the pressure plate 19 are converted, which is then automatically adjusted by means of the piezoelectric elements (piezo actuators) on the upper clamping rail 13 and the plate trailing edge exactly.
  • the upper clamping rail 13 instead of elastically deformed against an elastic restoring force of a spring element, not shown, of the clamping device 10 are moved.

Abstract

To set at least one register, at a sheet-fed offset printing press, the upper clamping rail (13) for the printing plate with the register (11) is moved in a guide path (14) and locked in place. It slides in the guide path, to be moved by a setting unit (15) in the adjustment direction (16) through a mechanical setter (17) or an electrical setter. A clamp locks the rail in place. The adjustment is effected by a central control.

Description

Die Erfindung betrifft eine Vorrichtung zur Verstellung von mindestens einem Registerelement in einer Druckmaschine, mit einer oberen Klemmschiene, an welcher die Registerelemente befestigt sind und einem mit der oberen Klemmschiene zusammenwirkenden Klemmelement gemäß Oberbegriff des Anspruchs 1.The invention relates to a device for adjusting at least one register element in a printing press, with an upper clamping rail on which the register elements are mounted and a cooperating with the upper clamping rail clamping element according to the preamble of claim 1.

Ferner bezieht sich die Erfindung auf ein Verfahren zum Verstellen von mindestens einem Registerelement in einer Druckmaschine, entsprechend dem Oberbegriff des Anspruchs 8.Furthermore, the invention relates to a method for adjusting at least one register element in a printing machine, according to the preamble of claim 8.

Vorrichtungen und damit realisierbare Verfahren der hier angesprochenen Art sind bekannt ( EP 0 596 337 B1 ). Dabei dient die Klemmschiene insbesondere einer Bogenoffsetdruckmaschine dazu, eine Druckplatte an einem zugeordneten Plattenzylinder zu befestigen. Aufgrund von sich einstellenden, nicht erwünschten Toleranzen in der Druckmaschine und somit auch am Plattenzylinder ist es notwendig, eine Lageverstellung der Registerelemente (Registerstifte) in Bezug auf eine zu fixierende Druckplattenvorderkante vorzusehen. Es ist aus EP 0 596 337 B1 bekannt, die Registerelemente jeweils relativ zur Klemmschiene mittels eines entsprechend ausgebildeten Befestigungsmechanismus lagezuverstellen. In dieser Weise werden nicht zu vermeidende Ungenauigkeiten beziehungsweise Spiele am Plattenzylinder der Druckmaschine zwischen der Klemmschiene und der zu fixierenden Druckplatte ausgeglichen, so dass eine zu klemmende Druckplatte in präziser und korrekter Weise am Plattenzylinder mittels der mit der Klemmschiene wirkverbundenen Registerelemente befestigt werden kann.Devices and thus realizable method of the type mentioned here are known ( EP 0 596 337 B1 ). The clamping rail is used in particular a sheetfed offset press to attach a printing plate to an associated plate cylinder. Due to adjusting, unwanted tolerances in the printing press and thus also on the plate cylinder, it is necessary to provide a positional adjustment of the register elements (register pins) with respect to a printing plate leading edge to be fixed. It is off EP 0 596 337 B1 known, the register elements each position relative to the clamping rail by means of a correspondingly formed fastening mechanism. In this way, unavoidable inaccuracies or games on the plate cylinder of the printing machine between the clamping rail and the pressure plate to be fixed are compensated, so that a pressure plate to be clamped in a precise and correct manner on the plate cylinder by means of operatively connected to the clamping rail register elements can be attached.

Es ist ferner bekannt, zur Lageverstellung von Registerelementen die gesamte, vom Plattenzylinder gelöste Klemmschiene - bestehend aus einer oberen Klemmschiene und einer mit dieser zusammenwirkenden unteren Klemmleiste - zusammen mit den Registerelementen lagezuverstellen. Da die Klemmschiene mittels einer verhältnismäßig großen Anzahl an Klemmmitteln (Klemmschrauben) mit dem Plattenzylinder wirkverbunden ist, ist das Lösen dieser Klemmmittel zur anschließenden Lageverstellung der Klemmschiene mit Registerelementen nachteilhafterweise zeitaufwendig und kompliziert.It is also known, for the position adjustment of register elements, the entire, released from the plate cylinder clamping rail - consisting of an upper clamping rail and a cooperating with this lower terminal strip - together with the register elements lagezuverstellen. Since the clamping rail by means of a relatively large number of clamping means (clamping screws) is operatively connected to the plate cylinder, the release of these clamping means for subsequent positional adjustment the clamping rail with register elements disadvantageously time-consuming and complicated.

Es ist Aufgabe der Erfindung, eine Vorrichtung und ein Verfahren der eingangs genannten Art zu schaffen, welche eine präzise und schnelle Lageverstellung der Registerelemente erlauben, ohne hierzu die Wirkverbindung zwischen den Registerelementen und der oberen Klemmschiene lösen zu müssen.It is an object of the invention to provide a device and a method of the type mentioned, which allow a precise and rapid position adjustment of the register elements, without having to solve the operative connection between the register elements and the upper clamping rail.

Zur Lösung der Aufgabe wird eine Vorrichtung mit den Merkmalen des Anspruchs 1 vorgeschlagen, die sich dadurch auszeichnet, dass die obere Klemmschiene zur Verstellung des Registerelements in einer Führung bewegbar und lagefixierbar ist. Dabei ist die Führung vorzugsweise derart ausgebildet, dass sie in jeder möglichen Betriebsposition der Klemmschiene die zur Befestigung einer Druckplatte am Plattenzylinder sich einstellenden Blockierkräfte kompensieren kann. Die Verstellung des jeweiligen Registerelements erfolgt somit mittels einer geeigneten Relativbewegung der oberen Klemmschiene relativ zum Plattenzylinder, wobei das entsprechende Registerelement auch während des Verstellvorgangs an der oberen Klemmschiene lagestabil befestigt ist. Mittels einer während des Verstellvorgangs stets geführten oberen Klemmschiene ist es möglich, unter Einsatz eines geeignet ausgebildeten und mit der oberen Klemmschiene wirkverbundenen Verstellmittels eine schnelle und definierte Verstellung des Registerelements zu erzielen. Dabei ist es nicht notwendig, zur Verstellung des Registerelements die obere Klemmschiene komplett vom Plattenzylinder zu lösen, sondern es besteht aufgrund der vorgesehenen Führung der Klemmschiene auch die Möglichkeit, selbige mittels eines geeigneten Verstellmittels elastisch in eine Verstellrichtung zu verformen beziehungsweise zu verbiegen zur Erzielung einer sich entsprechend einstellenden Positionierung des jeweiligen Registerelements relativ zu der am Plattenzylinder zu befestigenden beziehungsweise zu klemmenden Druckplatte. Nach Einnahme einer gewünschten Betriebsposition der elastisch verformten Klemmschiene beziehungsweise des zugehörigen Registerelements kann die Klemmschiene mittels geeigneter Klemm- oder Spannmittel am Plattenzylinder lagefixiert werden.To solve the problem, a device with the features of claim 1 is proposed, which is characterized in that the upper clamping rail for adjusting the register element in a guide is movable and fixed in position. The guide is preferably designed such that it can compensate in any possible operating position of the clamping rail for fixing a pressure plate on the plate cylinder adjusting blocking forces. The adjustment of the respective register element thus takes place by means of a suitable relative movement of the upper clamping rail relative to the plate cylinder, wherein the corresponding register element is fixed in position stable even during the adjustment of the upper clamping rail. By means of an always guided during the adjustment upper clamping rail, it is possible to achieve a fast and defined adjustment of the register element using a suitably trained and operatively connected to the upper clamping rail adjustment means. It is not necessary to completely disengage the upper clamping rail from the plate cylinder for adjusting the register element, but it is due to the provided guidance of the clamping rail also the possibility selb¬ by means of a suitable adjusting elastically deform in an adjustment or bend to achieve a corresponding adjusting positioning of the respective register element relative to the plate cylinder to be fastened or clamped pressure plate. After taking a desired operating position of the elastically deformed clamping rail or the associated register element, the clamping rail can be fixed in position on the plate cylinder by means of suitable clamping or tensioning means.

Mit Vorteil ist die Führung als Gleitführung ausgebildet und die obere Klemmschiene mittels einer Verstelleinrichtung in einer der Verstellrichtung des Registerelements entsprechenden Gleitrichtung lageverstellbar. Eine Gleitführung ist fertigungstechnisch verhältnismäßig einfach realisierbar und eignet sich besonders zur Kompensierung von zur Befestigung einer Druckplatte am Plattenzylinder sich einstellenden, in Bezug auf den Plattenzylinder radialen Kräften, wobei gleichzeitig eine präzise Führung der oberen Klemmschiene am Plattenzylinder gewährleistet ist. Hierdurch ist es möglich, mittels einer definierten Lageverstellung der Klemmschiene unter Betätigung einer geeignet ausgebildeten Verstelleinrichtung eine schnelle und korrekte Verstellung des jeweiligen Registerelements zu erhalten.Advantageously, the guide is designed as a sliding guide and the upper clamping rail can be adjusted in position by means of an adjusting device in a sliding direction corresponding to the adjustment direction of the register element. A sliding guide is manufacturing technology relatively easy to implement and is particularly suitable for compensating for fixing a pressure plate on the plate cylinder adjusting, with respect to the plate cylinder radial forces, at the same time a precise guidance of the upper clamping rail is ensured on the plate cylinder. This makes it possible to obtain a fast and correct adjustment of the respective register element by means of a defined position adjustment of the clamping rail by actuating a suitably designed adjusting device.

Gemäß einer bevorzugten Ausführungsform weist die Verstelleinrichtung mindestens ein mechanisches Verstellelement auf zur Erzeugung einer auf die obere Klemmschiene wirkenden Verstellkraft. Dabei kann als mechanisches Verstellelement eine mit der oberen Klemmschiene in geeigneter Wirkverbindung stehende Stellschraube, ein Keil, ein Exenterbolzen oder ähnliches vorgesehen sein, mittels welchen eine Verstellung der oberen Klemmschiene in hinsichtlich des Plattenzylinders tangentialer Richtung erzielbar ist. Ein derartiges, mechanisches Verstellelement wird vorzugsweise manuell betätigt.According to a preferred embodiment, the adjusting device has at least one mechanical adjusting element for generating an adjusting force acting on the upper clamping rail. It can be provided as a mechanical adjusting element standing with the upper clamping rail in a suitable operative connection set screw, a wedge, an eccentric bolt or the like, by means of which an adjustment of the upper clamping rail in respect to the plate cylinder tangential direction can be achieved. Such a mechanical adjusting element is preferably operated manually.

Gemäß einer weiteren alternativen Ausführungsform weist die Verstelleinrichtung mindestens ein elektrisches Verstellelement auf zur Erzeugung einer auf die Klemmschiene wirkenden Verstellkraft. Dabei kann beispielsweise der Einsatz von gebündelten Piezoaktoren vorgesehen sein, mittels welchen eine elektrische auslösbare Krafteinleitung in die obere Klemmschiene zur Lageverstellung derselben realisierbar ist. Dabei eignen sich elektrisch betätigbare Verstellelemente besonders zur automatisierten Verstellung des jeweiligen Registerelements mittels einer geeigneten, vorzugweise zentralen Steuereinheit.According to a further alternative embodiment, the adjusting device has at least one electrical adjusting element for generating an adjusting force acting on the clamping rail. In this case, for example, the use of bundled piezoelectric actuators can be provided, by means of which an electrically releasable introduction of force into the upper clamping rail for positional adjustment thereof can be realized. In this case, electrically actuatable adjusting elements are particularly suitable for the automated adjustment of the respective register element by means of a suitable, preferably central control unit.

Vorteilhafterweise sind zur Lagefixierung der Klemmschiene Klemm- oder Spannmittel vorgesehen. Derartige, zur Arretierung beziehungsweise Fixierung der deformierten oder ohne elastische Verbiegung verschobenen Klemmschiene dienende Klemm- oder Spannmittel können zum Beispiel als Klemmschrauben ausgebildet sein. Ferner ist es möglich, die Lagefixierung der Klemmschiene mittels elektrisch betätigbarer Klemm- oder Spannmittel zu realisieren, so dass auch eine automatisierte Lagefixierung der Klemmschiene mittels einer vorzugsweise zentralen Steuereinheit möglich ist.Advantageously, clamping or clamping means are provided for fixing the position of the clamping rail. Such, for locking or fixing the deformed or without elastic bending displaced clamping rail serving clamping or clamping means may be formed, for example, as a clamping screws. It is also possible to fix the position of the clamping rail by means of electrically operated clamping or To realize clamping means, so that an automated position fixation of the clamping rail by means of a preferably central control unit is possible.

Vorteilhafterweise ist die Vorrichtung mit einer zentralen Steuereinheit wirkverbunden. Mittels einer zentralen Steuereinheit kann unter Einsatz von elektrisch betätigbaren Verstellelementen und Lagefixiermitteln der Klemmschiene eine automatisierte und kontrollierte Verstellung des jeweiligen Registerelements erfolgen.Advantageously, the device is operatively connected to a central control unit. By means of a central control unit can be carried out using electrically actuatable adjusting elements and Lagefixiermitteln the clamping rail an automated and controlled adjustment of the respective register element.

Entsprechend einer weiteren, alternativen Ausführungsform besteht die Klemmschiene aus einer Mehrzahl an relativ bewegbaren Teilsegmenten, die jeweils mindestens ein Registerelement enthalten. Hierdurch ist es möglich, jeweils geführte Teilsegmente der oberen Klemmschiene unabhängig voneinander lagezuverstellen, vorzugsweise gegen eine elastische Rückstellkraft zum Beispiel in Folge einer elastischen Verbiegung des entsprechenden Teilsegments. Es ist somit eine besonders flexible und vorzugsweise automatisierte Verstellung des jeweiligen Registerelements mittels einer kontrollierten Bewegung des entsprechenden Teilsegments realisierbar.According to a further alternative embodiment, the clamping rail consists of a plurality of relatively movable sub-segments, each containing at least one register element. This makes it possible, each guided position sub-segments of the upper clamping rail independently adjust, preferably against an elastic restoring force, for example, as a result of elastic bending of the corresponding sub-segment. It is thus a particularly flexible and preferably automated adjustment of the respective register element by means of a controlled movement of the corresponding sub-segment feasible.

Zur Lösung der Aufgabe wird auch ein Verfahren zum Verstellen von mindestens einemTo solve the problem is also a method for adjusting at least one

Registerelement in einer Druckmaschine vorgeschlagen, das die Merkmale des Anspruchs 8 aufweist. Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass eine obere Klemmschiene, an welcher das Registerelement befestigt ist, zur Verstellung desselben in einer Führung bewegt und lagefixiert wird. Dieses erfindungsgemäße Verfahren ist geeignet, die in Bezug auf die Vorrichtung vorerwähnten Vorteile zu erzielen.Registered element proposed in a printing press, which has the features of claim 8. The inventive method is characterized in that an upper clamping rail, on which the register element is fixed, is moved to adjust the same in a guide and fixed in position. This method according to the invention is suitable for achieving the advantages mentioned in relation to the device.

Vorteilhafterweise wird die Klemmschiene in einer Gleitführung mittels einer Verstelleinrichtung in Verstellrichtung des Registerelements lageverstellt. Eine in einer Gleitführung geführte obere Klemmschiene ist in besonders zuverlässiger Weise präzise lageverstellbar und eignet sich somit zu einer fein einstellbaren Registerelementverstellung.Advantageously, the clamping rail is adjusted in position in a sliding guide by means of an adjusting device in the adjustment direction of the register element. A guided in a slide upper clamping rail is precisely positionally adjustable in a particularly reliable manner and is thus suitable for a finely adjustable register element adjustment.

Gemäß einer bevorzugten Ausführungsvariante wird die auf die Klemmschiene wirkende Verstellkraft mechanisch erzeugt. Dies kann beispielsweise mittels einer manuellen Verstellung von entsprechend ausgebildeten Verstellelementen erfolgen. Entsprechend einer weiteren, alternativen Ausführungsvariante wird die auf die obere Klemmschiene wirkende Verstellkraft elektrisch erzeugt. Die hierzu eingesetzten Verstellelemente lassen sich in verhältnismäßig einfacher Weise mittels einer zentralen Steuereinheit steuern, so dass die Verstellung eines jeweiligen Registerelements vorteilhafterweise automatisiert werden kann.According to a preferred embodiment variant, the adjusting force acting on the clamping rail is generated mechanically. This can be done for example by means of a manual adjustment of appropriately trained adjusting elements. According to a further alternative embodiment variant, the adjusting force acting on the upper clamping rail is generated electrically. The adjusting elements used for this purpose can be controlled in a relatively simple manner by means of a central control unit, so that the adjustment of a respective register element can advantageously be automated.

Vorzugsweise wird die obere Klemmschiene punktuell lagefixiert und an Verstellbereichen, in welchen das Registerelement angeordnet und in Verstellrichtung geführt ist, elastisch verformt und lagestabil festgespannt. Hierbei ist es nicht notwendig, zur Erzielung einer definierten Lageverstellung der oberen Klemmschiene mittels einer elastischen Verformung in einem oder mehreren Verstellbereichen die punktuelle Lagefixierung der oberen Klemmschiene an dem Plattenzylinder der Druckmaschine zu lösen, so dass eine schnelle und präzise Verstellung des Registerelements realisierbar ist.Preferably, the upper clamping rail is selectively fixed in position and at adjustment ranges, in which the register element is arranged and guided in the adjustment direction, elastically deformed and firmly tensioned in a stable position. In this case, it is not necessary to achieve a defined positional adjustment of the upper clamping rail by means of an elastic deformation in one or more adjustment, the punctual position fixing the upper clamping rail on the plate cylinder of the printing press, so that a fast and precise adjustment of the register element can be realized.

Die Bewegung und die Lagefixierung der oberen Klemmschiene in der Führung erfolgt vorzugsweise automatisiert, und insbesondere mittels einer zentralen Steuereinheit. Dabei kann ein eventuell vorliegendes Spiel zwischen der oberen Klemmschiene und einer am Plattenzylinder festzuspannenden Druckplatte mittels geeignet angeordneter Messmittel (Sensoren) ermittelt und an die zentrale Steuereinheit übermittelt werden, welche eine entsprechende, automatisierte Lageverstellung der oberen Klemmschiene und somit eine geeignete Positionierung des jeweiligen Registerelements mittels elektrisch steuerbarer Verstellelemente einleitet.The movement and the position fixation of the upper clamping rail in the guide are preferably automated, and in particular by means of a central control unit. In this case, any existing game between the upper clamping rail and a plate to be clamped pressure plate by means of suitably arranged measuring means (sensors) are determined and transmitted to the central control unit, which means a corresponding, automated positional adjustment of the upper clamping rail and thus a suitable positioning of the respective register element electrically controllable adjusting introduces.

Entsprechend einer alternativen Ausführungsvariante besteht die obere Klemmschiene aus einer Mehrzahl an Teilsegmenten, die mindestens ein Registerelement aufweisen und unabhängig voneinander bewegt und lagefixiert werden. Hierdurch wird eine besonders flexible Verstellung der Registerelemente mittels vorzugsweise elastischer und automatisierter Verformung der Teilsegmente ermöglicht, wobei die Teilsegmente und somit auch die entsprechende Registerelemente unabhängig voneinander verstellbar sind.According to an alternative embodiment, the upper clamping rail consists of a plurality of sub-segments, which have at least one register element and are moved independently of each other and fixed in position. As a result, a particularly flexible adjustment of the register elements by means of preferably elastic and automated deformation of the sub-segments allows, the sub-segments and thus the corresponding register elements are independently adjustable.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus der Beschreibung.Further advantageous embodiments of the invention will become apparent from the description.

Die Erfindung wird nachfolgend in mehreren Ausführungsbeispielen anhand einer zugehörigen Zeichnung näher erläutert. Es zeigen:

Figur 1
eine quergeschnittene, erfindungsgemäße Vorrichtung entsprechend einer ersten Ausführungsform in schematischer Darstellung;
Figur 2
eine Draufsicht auf die Vorrichtung der Figur 1 in schematischer Darstellung und
Figur 3
einen Querschnitt einer erfindungsgemäßen Vorrichtung entsprechend einer zweiten, alternativen Ausführungsform in schematischer Darstellung.
The invention will be explained in more detail in several embodiments with reference to an accompanying drawing. Show it:
FIG. 1
a cross-sectional, inventive device according to a first embodiment in a schematic representation;
FIG. 2
a plan view of the device of FIG. 1 in a schematic representation and
FIG. 3
a cross section of a device according to the invention according to a second alternative embodiment in a schematic representation.

Figur 1 zeigt in schematischer Darstellung eine allgemein mit 10 bezeichnete Klemmvorrichtung für Druckplatten einer Druckmaschine. Die Klemmvorrichtung 10 ist zur Verstellung (Feineinstellung) von mindestens einem Registerelement 11 ausgebildet. Die Klemmvorrichtung 10 befindet sich in Wirkverbindung mit einem Plattenzylinder 18, an welchem eine Druckplatte 19 in an sich bekannter Weise an Registerelementen 11 (Registerstifte) ausgerichtet und mittels der Klemmvorrichtung 10 befestigt (verspannt) ist. Die Klemmvorrichtung 10 weist eine obere Klemmschiene 13 auf, an welcher die Registerelemente 11 sicher befestigt sind. Die obere Klemmschiene 13 wirkt zur Druckplatten-Klemmung mit einem in radialer Richtung bezüglich des Plattenzylinders bewegbaren Klemmelement 24 zusammen und ist zur Verstellung eines jeweiligen Registerelements 11 in einer Führung 14 bewegbar und lagefixierbar. Die Führung 14 ist als Gleitführung in Form einer Flachführung ausgebildet und geeignet, in Bezug auf den Plattenzylinder 18 radiale mittels der oberen Klemmschiene 13 in die Führung 14 eingeleitete Kräfte (Gegenkräfte der Druckplattenverspannung) zu kompensieren. Die Klemmvorrichtung 10 enthält ferner eine Verstelleinrichtung 15, mittels welcher die obere Klemmschiene 13 in der Führung 14 in einer Gleitrichtung gemäß Doppelpfeil 16 lageverstellbar ist. Dabei entspricht die Gleitrichtung (Doppelpfeil 16) der Klemmschiene 13 der Verstellrichtung eines entsprechenden Registerelements 11. Die Verstelleinrichtung 15 weist gemäß Figur 1 vorzugsweise eine Mehrzahl an mechanischen Verstellelementen 17 auf, welche jeweils als handbetätigbare Exzenterbolzen ausgebildet sind. FIG. 1 shows a schematic representation of a generally designated 10 clamping device for printing plates of a printing press. The clamping device 10 is designed for adjusting (fine adjustment) of at least one register element 11. The clamping device 10 is in operative connection with a plate cylinder 18 to which a pressure plate 19 aligned in a conventional manner to register elements 11 (register pins) and fastened (clamped) by means of the clamping device 10. The clamping device 10 has an upper clamping rail 13, to which the register elements 11 are securely fastened. The upper clamping rail 13 cooperates for printing plate clamping with a movable in the radial direction with respect to the plate cylinder clamping element 24 and is movable to adjust a respective register member 11 in a guide 14 and fixed in position. The guide 14 is designed as a sliding guide in the form of a flat guide and suitable to compensate in relation to the plate cylinder 18 radial by means of the upper clamping rail 13 in the guide 14 introduced forces (opposing forces of the pressure plate clamping). The clamping device 10 further includes an adjusting device 15, by means of which the upper clamping rail 13 in the guide 14 in a sliding direction according to the double arrow 16 is adjustable in position. The sliding direction (double arrow 16) of the clamping rail 13 corresponds to the adjustment direction of a corresponding register element 11. The adjusting device 15 indicates according to FIG. 1 Preferably, a plurality of mechanical adjusting elements 17, which are each formed as hand-operated eccentric pin.

Figur 2 zeigt die Klemmvorrichtung 10 der Figur 1 in einer schematischen Draufsicht, wobei lediglich die obere Klemmschiene 13 dargestellt ist. Die obere Klemmschiene 13 ist mittels geeigneter Befestigungsmittel 22, beispielsweise in Form von Klemmschrauben, fest mit dem nicht in Figur 2 dargestellten Plattenzylinder 18 (siehe auch Figur 1) in einem jeweiligen Fixierbereich 27 punktuell wirkverbunden. Mittels einer Drehung des als Exzenterbolzens ausgebildeten Verstellelements 17 gemäß Doppelpfeil 23 um eine Drehachse 26 ist es möglich, die Klemmschiene 13 in einem jeweiligen Verstellbereich 20 elastisch in die Verstellrichtung gemäß Doppelpfeil 16 lagezuverstellen, wobei die obere Klemmschiene 13 stets gemäß Figur 1 in der Führung 14 auf ganze Länge, das heißt relativ zum Doppelpfeil 16 in Querrichtung, geführt ist. Mittels dieser kontrollierten und elastisch geführten Lage-verstellung der Klemmschiene 13 in hinsichtlich des Plattenzylinders 18 tangentialer Richtung erfolgt eine erwünschte Verstellung (Positionierung) des entsprechenden Registerelements 11 relativ zur Druckplatte 19 (siehe auch Figur 1). Nach Einnahme der gewünschten Betriebsposition der oberen Klemmschiene 13 und somit auch der Registerelemente 11 wird das entsprechende, als Exzenterbolzen ausgebildete Verstellelement 17 mittels eines geeigneten Klemm- oder Spannmittels 21, beispielsweise in Form einer Klemmschraube, blockiert zur vollständigen Lagefixierung der Klemmschiene 13 in Betriebsposition. FIG. 2 shows the clamping device 10 of FIG. 1 in a schematic plan view, with only the upper clamping rail 13 is shown. The upper clamping rail 13 is by means of suitable fastening means 22, for example in the form of clamping screws, fixed to the not in FIG. 2 shown plate cylinder 18 (see also FIG. 1 ) are selectively operatively connected in a respective fixing region 27. By means of a rotation of the eccentric pin formed as adjusting 17 according to double arrow 23 about a rotation axis 26, it is possible to adjust the clamping rail 13 in a respective adjustment 20 elastically in the adjustment direction according to double arrow 16, the upper clamping rail 13 always according to FIG. 1 in the guide 14 to full length, that is, relative to the double arrow 16 in the transverse direction, is guided. By means of this controlled and elastically guided position adjustment of the clamping rail 13 in relation to the plate cylinder 18 tangential direction is a desired adjustment (positioning) of the corresponding register member 11 relative to the pressure plate 19 (see also FIG. 1 ). After taking the desired operating position of the upper clamping rail 13 and thus also the register elements 11, the corresponding, formed as an eccentric adjusting 17 by means of a suitable clamping or clamping means 21, for example in the form of a clamping screw, blocked for complete positional fixation of the clamping rail 13 in the operating position.

Figur 3 zeigt eine alternative Ausführungsform der erfindungsgemäßen Klemmvorrichtung 10, gemäß welcher die Verstelleinrichtung 15 ein Verstellelement 17 aufweist, das als Stellschraube ausgebildet ist. Bei Betätigung der Stellschraube 17 wird die Klemmleiste 13 in der Führung 14 entweder gemäß Doppelpfeil 16 (in der Zeichnung nach rechts) gegen eine elastische Rückstellkraft (Eigenelastizität der oberen Klemmschiene 13) lageverstellt oder aufgrund dieser wirkenden elastischen Rückstellkraft (in der Zeichnung nach links) zurückbewegt. In dieser Weise erfolgt eine erwünschte Verstellung des jeweiligen Registerelements 11 in Bezug auf eine nicht in Figur 3 dargestellte Druckplatte 19, welche mittels der oberen Klemmschiene 13 und dem gemäß Doppelpfeil 25 in zum Plattenzylinder 19 radialer Richtung bewegbaren Klemmelements 24 am Platten-zylinder 18 an ihrer Vorderkante in bekannter Weise befestigbar beziehungsweise klemmbar ist. FIG. 3 shows an alternative embodiment of the clamping device 10 according to the invention, according to which the adjusting device 15 has an adjusting element 17 which is designed as a set screw. Upon actuation of the adjusting screw 17, the terminal block 13 in the guide 14 either according to double arrow 16 (in the drawing to the right) against an elastic restoring force (inherent elasticity of the upper clamping rail 13) positionally adjusted or due to this acting elastic restoring force (in the drawing to the left) moved back , In this way, a desired adjustment of the respective register element 11 with respect to a not in FIG. 3 shown pressure plate 19, which by means of the upper clamping rail 13 and the double arrow 25 in the Plate cylinder 19 radially movable clamping member 24 on the plate cylinder 18 at its front edge in a known manner can be fastened or clamped.

Gemäß einer nicht dargestellten, alternativen Ausführungsform kann die obere Klemmschiene 13 in ihrer Mitte mittels geeigneter Befestigungsmittel (zum Beispiel Schraubverbindung) an dem Plattenzylinder 18 lagefixiert sein (Fixierbereich der oberen Klemmschiene 13) und an ihren beiden freien Längsenden um ihre Mitte elastisch verformt beziehungsweise verbogen werden zur Verstellung von zueinander in Längsrichtung der oberen Klemmschiene 13 beabstandet angeordneter Registerelemente 11 in bezüglich des Plattenzylinders 18 tangentialer Verstellrichtung (Doppelpfeil 16). Dabei können die beiden freien Längsenden der oberen Klemmschiene 13 beispielsweise mittels einer sich entlang einer entsprechenden Kreisbahn erstreckenden Schwalbenschwanz-Führung verschiebbar gelagert sein.According to an alternative embodiment not shown, the upper clamping rail 13 can be fixed in position at its center by means of suitable fastening means (for example screw connection) to the plate cylinder 18 (fixing region of the upper clamping rail 13) and elastically deformed or bent around its center at its two free longitudinal ends for the adjustment of spaced apart in the longitudinal direction of the upper clamping rail 13 arranged register elements 11 in relation to the plate cylinder 18 tangential adjustment (double arrow 16). The two free longitudinal ends of the upper clamping rail 13 can be displaceably mounted, for example, by means of a dovetail guide extending along a corresponding circular path.

Entsprechend einer weiteren, alternativen und nicht dargestellten Ausführungsform der erfindungsgemäßen Vorrichtung kann die obere Klemmschiene 13 auch aus einer Mehrzahl an getrennten und zueinander relativ bewegbaren Teilsegmenten bestehen, die jeweils mindestens ein Registerelement 11 enthalten. Dabei ist jedes Teilsegment mittels einer entsprechenden Führung mit dem Plattenzylinder 18 wirkverbunden.According to a further, alternative and not shown embodiment of the device according to the invention, the upper clamping rail 13 also consist of a plurality of separate and mutually relatively movable sub-segments, each containing at least one register element 11. Each sub-segment is operatively connected by means of a corresponding guide with the plate cylinder 18.

Bevorzugterweise sind die Verstellelemente 17 als elektrisch betätigbare Piezoelemente, Aktoren oder ähnliches ausgebildet, welche zur automatisierten Verstellung der Registerelemente 11 mit einer zentralen Steuereinheit (nicht dargestellt) in Wirkverbindung stehen können. Bei dieser Ausführungsform besteht die Möglichkeit, eine Plattenhinterkantenspannung entsprechend einem auszugleichenden Passer in automatisierter Weise zu verstellen. Dabei kann eine Abweichung eines Passkreuzes direkt von einer zentralen Steuereinheit in einen entsprechenden Verstellweg der Vorder- und Hinterkante der Druckplatte 19 umgerechnet werden, welche anschließend automatisiert mittels der Piezoelemente (Piezoaktoren) an der oberen Klemmschiene 13 und an der Plattenhinterkante exakt einstellbar ist. Nachdem die Klemmschiene 13 oberhalb der Druckplatte 19 in Betriebsstellung lagefixiert worden ist, kann die Druckplatte 19 mittels radialer Bewegung gemäß Doppelpfeil 25 (in der Zeichnung nach oben) des Klemmelements 24 am Plattenzylinder 18 an ihrer Vorderkante festgespannt werden.Preferably, the adjusting elements 17 are designed as electrically actuated piezoelectric elements, actuators or the like, which (not shown) may be in operative connection for automatic adjustment of the register elements 11 with a central control unit. In this embodiment, it is possible to automatically adjust a plate trailing edge tension corresponding to a register to be compensated. In this case, a deviation of a register cross directly from a central control unit in a corresponding adjustment of the leading and trailing edges of the pressure plate 19 are converted, which is then automatically adjusted by means of the piezoelectric elements (piezo actuators) on the upper clamping rail 13 and the plate trailing edge exactly. After the clamping rail 13 has been fixed in position above the pressure plate 19 in the operating position, the pressure plate 19 by means of radial movement according to double arrow 25 (in the drawing upwards) of the clamping element 24 are clamped to the plate cylinder 18 at its front edge.

Ferner kann alternativ die obere Klemmschiene 13 statt elastisch verformt auch gegen eine elastische Rückstellkraft eines nicht dargestellten Federelements der Klemmvorrichtung 10 bewegt werden.Furthermore, alternatively, the upper clamping rail 13 instead of elastically deformed against an elastic restoring force of a spring element, not shown, of the clamping device 10 are moved.

Claims (14)

  1. A device for adjusting a register element in a printing machine, comprising an upper clamping rail and a register element fixed to said upper clamping rail and a clamping element co-operating with said upper clamping rail, characterized in that said upper clamping rail (13) is movably disposed and fixable in position in a guide (14) for adjusting said register element (11).
  2. The device according to claim 1, characterized in that said guide (14) is a sliding guide, and the position of said upper clamping rail (13) is adjustable in position with an adjusting device (15) in a sliding direction (16) corresponding to an adjustment direction of said register element (11).
  3. The device according to one of the preceding claims, characterized in that said adjusting device (15) comprises at least one mechanical adjusting element (17) for generating an adjusting force acting on said upper clamping rail (13).
  4. The device according to one of the preceding claims, characterized in that said adjusting device (15) comprises at least one electrical adjusting element for generating an adjusting force acting on said upper clamping rail (13).
  5. The device according to one of the preceding claims, characterized in that clamping or tensioning means (21) are provided for fixing the position of said upper clamping rail (13).
  6. The device according to one of the preceding claims, characterized in that it is operatively connected to a central control unit.
  7. The device according to one of the preceding claims, characterized in that said upper clamping rail (13) is formed of a plurality of part segments movably disposed relative to one another and each containing at least one register element (11).
  8. A method of adjusting at least one register element in a printing machine, characterized in that an upper clamping rail (13), having fixed thereto said register element (11), is moved and fixed in position in a guide (14) in order to adjust said register element.
  9. The method according to one of the preceding claims, characterized in that said upper clamping rail (13) is adjusted to a position in a sliding guide (14) by way of an adjusting device (15) in an adjustment direction (16) of said register element (11).
  10. The method according to one of the preceding claims, characterized in that the adjusting force acting on said upper clamping rail (13) is generated mechanically.
  11. The method according to one of the preceding claims, characterized in that the adjusting force acting on said upper clamping rail (13) is generated electrically.
  12. The method according to one of the preceding claims, characterized in that said upper clamping rail (13) is fixed in position at a point and is elastically deformed and firmly clamped in a stable position at adjustment regions (29), wherein the register element (11) is disposed and guided in adjustment direction (16).
  13. The method according to one of the preceding claims, characterized in that moving and positionally fixing the upper clamping rail (13) in the guide (14) takes place in an automated manner.
  14. The method according one of the preceding claims, characterized in that said upper clamping rail (13) is comprised of a plurality of part segments each having at least one register element (11), and which are moved and fixed in position independently of one another.
EP01117919A 2000-08-25 2001-07-24 Device for adjusting at least a register element in a printing machine and corresponding method Expired - Lifetime EP1182036B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10041908 2000-08-25
DE10041908 2000-08-25

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US (1) US6748862B2 (en)
EP (1) EP1182036B1 (en)
JP (1) JP4741119B2 (en)
AT (1) ATE422420T1 (en)
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DE (2) DE50114697D1 (en)

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US7565856B2 (en) * 2005-07-01 2009-07-28 Eagle Rotary Systems, Inc. Rotary cutting tool
DE102007053596A1 (en) * 2007-11-09 2009-05-14 Manroland Ag Positionierantriebsanordnung a printing press
DE102007061386B4 (en) * 2007-12-19 2021-07-08 manroland sheetfed GmbH Rotary printing machine with lightweight components
US9120301B2 (en) * 2010-11-17 2015-09-01 Bunting Magnetics Co. Magnetic roll
JP5638166B2 (en) * 2011-06-30 2014-12-10 ケーニツヒ ウント バウエル アクチエンゲゼルシヤフトＫｏｅｎｉｇ ＆ Ｂａｕｅｒ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ Apparatus comprising a plate cylinder and at least one printing plate arranged on the plate cylinder
JP7459571B2 (en) * 2020-03-05 2024-04-02 富士フイルムビジネスイノベーション株式会社 Body member and image forming device

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EP1182036A1 (en) 2002-02-27
ATE422420T1 (en) 2009-02-15
US6748862B2 (en) 2004-06-15
DE10136422A1 (en) 2002-03-07
JP4741119B2 (en) 2011-08-03
JP2002067272A (en) 2002-03-05
DE50114697D1 (en) 2009-03-26
CZ297967B6 (en) 2007-05-09
US20020023563A1 (en) 2002-02-28
CZ20012609A3 (en) 2002-04-17

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