EP0678383A1 - Device for exchanging printing plates in a rotary printing machine - Google Patents

Device for exchanging printing plates in a rotary printing machine Download PDF

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Publication number
EP0678383A1
EP0678383A1 EP95102223A EP95102223A EP0678383A1 EP 0678383 A1 EP0678383 A1 EP 0678383A1 EP 95102223 A EP95102223 A EP 95102223A EP 95102223 A EP95102223 A EP 95102223A EP 0678383 A1 EP0678383 A1 EP 0678383A1
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EP
European Patent Office
Prior art keywords
printing form
printing
cylinder
slope
holding means
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.)
Granted
Application number
EP95102223A
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German (de)
French (fr)
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EP0678383B1 (en
Inventor
Jean-Claude Marmin
Jacky Planas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Goss International Montataire SA
Original Assignee
Heidelberger Druckmaschinen AG
Heidelberg Harris SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG, Heidelberg Harris SA filed Critical Heidelberger Druckmaschinen AG
Publication of EP0678383A1 publication Critical patent/EP0678383A1/en
Application granted granted Critical
Publication of EP0678383B1 publication Critical patent/EP0678383B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder

Definitions

  • the invention relates to a device for changing printing forms on rotary printing presses which comprise printing form cylinders which receive the two ends of a printing form in a channel, the surface of the printing form being wound around the printing form cylinder; with a device which currently holds a printing form cylinder on the printing form cylinder after the printing form has been released from the clamping devices of the printing form cylinder and a device for supplying a new printing form to the printing form cylinder.
  • EP 0 433 798 A2 discloses a method and a device for automatically feeding or removing a printing plate.
  • this device both a storage area is provided for a printing form to be fed, and a storage area into which a printing form to be removed from the printing form cylinder can enter before the new printing form is attached to the printing form cylinder.
  • Transport and pressure rollers are indeed provided in the immediate vicinity of the cylinder receiving the printing formes, in order to ensure precise insertion of the leading edge of the printing form;
  • both the newly to be introduced and the printing form to be removed from the printing unit are moved over a larger section of their transport path over resting surfaces, so that scratching of the sensitive surfaces cannot be completely ruled out, both in the printing form to be fed in and in the printing form.
  • EP 0 432 660 A2 discloses a method for automatically changing a printing plate.
  • a number of transport rollers are stored between the storage areas for the printing forms.
  • a lever mechanism and adjustable tongues are arranged between transport rollers and the surface of the printing form cylinder or the wide channel of the printing form cylinder, which, on the one hand, represent a considerable mechanical outlay and, on the other hand, not insignificantly impair the accessibility of the printing unit of the rotary printing press.
  • EP 0 570 702 A1 shows a device for feeding printing plates onto the plate cylinder of printing machines, in particular sheet-fed offset printing machines.
  • an angle plate can be actuated by a pneumatic cylinder which presses a sheet profile onto the brushes. Through the channel formed between the sheet profile and the brushes, a new printing plate can be inserted directly into a clamping rail of a printing form cylinder. What happens to a printing form to be removed from a printing form cylinder before it is fed to the printing form cylinder remains unmentioned, since the teaching of this prior art document only concerned itself with simplifying the supply of the leading edge of the printing plate.
  • a plate changing device for printing machines has become known from EP 0 431 715 A2.
  • This device which relates to sheet-fed rotary printing presses, comprises both a storage area for a new printing form to be supplied and also for the printing forms released by the printing form cylinder.
  • the invention has for its object to ensure reliable feeding and removal of printing forms to a printing form cylinder.
  • this object is achieved in that an area of the printing form to be fed temporarily deformable pivotable holding means deform it elastically in such a way that one end of the printing form is set against the outer surface of the printing form cylinder.
  • An advantage of the idea on which the invention is based is the fact that the elasticity of the thin printing formes can be used to insert the respective printing form leading edge into a narrow channel of printing form cylinders; after removal of the printing form previously located on the circumference of the printing form cylinder, after the reversal of the direction of rotation of the printing form cylinder required for pulling in the new printing form, the front edge of the new printing form can snap into the channel of the printing form cylinder.
  • the force required to snap the leading edge of the printing form into the channel is applied by the pivotable holding means, which can be positioned in a position which generates the leading edge of the printing form.
  • the holding means allow the printing forme to be drawn in continuously while holding it in the front part of the insertion bevel in order to avoid damage.
  • the continuous negative pressure on the holding means is consistently guaranteed during the pulling-in movement of the new printing form.
  • Both the device supplying a printing form and the device receiving the printing form to be removed from the printing form cylinder are designed as bevels.
  • the conveying planes for the printing forms in these inclined slopes are formed by peripheral surfaces of rotatably mounted rotating bodies. It has proven to be very advantageous that the printing form to be fed can be received in the insertion bevel in an essentially upright position.
  • horizontally movable holding elements are arranged below the insertion bevel in the area closest to the lateral surface of the printing form cylinder. These temporarily fix the front edge of a printing form to be fed, ie until an area of the printing form to be fed is gripped by the holding means lying in a pivotable plane.
  • the horizontally movable holding elements are provided with actuators that cause the horizontal movement.
  • a holding means which grips the printing form to be removed and promotes a final removal position is provided below the ejection slope. After the final removal position has been reached, the printing form can be removed very easily by the printer. To secure the final removal position of the printing form to be removed, in the ejection slope, at least one holding bracket is provided below the ejection slope.
  • An insertion slope 2 and an extension slope 3 are assigned to a printing form cylinder 1.
  • the lead-in bevel 2 and the lead-out bevel 3 are formed by a plurality of loosely rotatable rollers mounted in one plane, so that the pressure molds A and B to be deposited thereon experience low-friction conveyance.
  • a pair of actuating cylinders 4, 5 is shown, which pivots holding means 9 about an axis 8.
  • compact electromotive drive means are also conceivable, with which the printing form front edge can be inserted into the channel 11 exactly at the point in time at which it lies opposite the angled end of the printing form front edge.
  • a guide bevel 7 is also arranged pivotably about the axis 8.
  • a printing form A to be changed is currently accommodated on the printing form cylinder 1 shown. Their front edge 28 or their rear edge 29 are received together in a channel 11 which is embodied in the printing form cylinder 1.
  • a pressure roller 17 also works together with the lateral surface of the printing form cylinder 1, as well as the transfer cylinder 40 (not shown in detail) arranged underneath.
  • the printing form cylinder 1 and the transfer cylinder 40 which cooperate therewith form, for example, an upper printing unit in a rotary printing press, which is above an area to be processed Material web is arranged.
  • the insertion slope 2 is delimited on the underside by schematically arranged holding pins 82 and 83 which can be moved perpendicular to the plane of the drawing.
  • Fig. 2 shows a front view of the device according to the invention.
  • a printing form cylinder 1 and a transfer cylinder 40 are rotatably mounted in the side walls of a rotary printing press, which are only shown schematically here. Furthermore, a pressure roller 17 is assigned to a printing form cylinder 1.
  • a pair of actuating cylinders 4, 5 is fastened, which pivots an axis 8, which receives both a guide bevel 7 and the plane in which the holding means 9 are arranged.
  • the holding elements 82 and 83 are also accommodated in the schematically arranged side walls.
  • the holding element 82 has a lateral stop 81.
  • the holding elements 82 and 83 can each be moved in the horizontal direction by an adjusting unit 80 and 84.
  • Both Adjustment units 80 and 84 can be solenoid-operated units or pneumatic cylinders that can be connected to the air supply of the rotary printing press. If the holding elements 82 and 83 are extended to their dashed position, the front end of the printing form cylinder B to be fastened on the printing form cylinder 1 rests thereon, correctly aligned laterally by the side stop 81.
  • the actuating cylinders actuating the holding means 10 are arranged below the extension slope 3 and hold the holding means 10 on rod-shaped extensions.
  • the printing form A to be removed can be completely removed from the printing unit and inserted into the holding bracket 16 which delimits the downward slope 3.
  • the insertion slope 2 is indicated schematically in each case.
  • the plane in which the holding means 9 are received can be pivoted about the axis 8.
  • the holding means 9 are interconnected by a central air vacuum supply system, which ensures the simultaneous and uniform loading of these holding means during the introduction of the new printing form B.
  • a number of printing form changing units according to the invention can of course be arranged next to one another.
  • FIG. 3 shows an enlarged illustration of the holding elements which fix a new printing form B to be applied.
  • the holding elements 82 and 83 are designed as angle pieces, wherein they can be moved by a cylindrical actuating unit 84.
  • a cold element, in this case the holding element 82, has a lateral stop 81 in order to correctly align the new printing form B to be applied laterally before it is drawn into the printing unit.
  • FIG. 4 shows how the printing form A to be changed runs from the printing form cylinder 1 into the ejection slope 3.
  • the rear edge end 29 lies in front of the bracket 16 on a roll.
  • the further rotation of the printing form cylinder 1 in the direction of the arrow causes the printing form A running from the printing form cylinder 1 to run onto the rollers which define the extension slope 3.
  • the course of the printing form A from the jacket of the printing form cylinder 1 is supported by the pressure roller 17.
  • the movement of the printing form A to be changed takes place solely by the movement of the printing form cylinder 1. No further support for the transport of the printing form A to be changed is required.
  • the new printing form B rests on the holding elements 82 and 83 in the insertion slope 2.
  • the actuating cylinder pair 4, 5 holds the holding means 9 in a pivoted-down position.
  • the printing form A running from the printing form cylinder 1 is transported further into the ejection slope 3, but has not yet been gripped by the holding means 10, which is actuated by the actuating cylinder 6.
  • the printing form A that is running lies with its printing surface on a roller for protection against scratches by the holding bracket 16.
  • the actuators for the new printing form B which is located in the insertion slope 2, are still at rest.
  • the printing form A to be changed has left the jacket of the printing form cylinder 1.
  • the front edge 28 of the printing form A rests on the Pressure roller 17. It is also protected against scratching by a roller arranged in front of the holding bracket 16.
  • the rear edge 29 of the printing form A to be changed has already left the rollers which define the extension slope 3.
  • the printing side of the printing form A to be changed is gripped by a pneumatic holding means 10, since a further transport advance against gravity in the ejection slope 3 can no longer take place by rotating the printing form cylinder 1, since there is no longer any contact with it.
  • the printing form A to be changed is transported by the holding means 10, which moves into a deflected position 10 ', into the extension slope 3 until the front edge 28 of the printing form 8 to be changed engages in the holding bracket 16 and lies there.
  • the printing form A to be changed is secured against damage and against falling, so the negative pressure in the holding means 10 can be switched off and the printing form 8 to be changed can be removed by the printer.
  • the devices moving the new printing form B are still at rest.
  • the pneumatic holding means 9 received in a plane pivotable about the axis 8 are brought into contact with the rear side of the new printing form B by the actuating cylinder pair 4, 5.
  • the pivoting movement of the plane with the holding means 9 about the axis 8 has the result that the guide bevel 7 rises and defines an inlet funnel.
  • the printing form cylinder 1 rotates in the crawl gear in the direction of the arrow opposite to the direction of rotation shown in the previous figures.
  • the holding elements 82 and 83 move back into their actuating units and release the front edge 28 of the new printing form B. This is now exclusively by the holding means 9 in the pivotable about the axis 8 Kept level.
  • the suction area of the holding means 9 positions the front area of the new printing form B against the outer surface of the printing form cylinder 1.
  • the front edge 28 'of the new printing form B is gripped by the channel 11 of the printing form cylinder 1, as a result of which the start of the drawing-in movement of the new printing form B occurs.
  • the holding means 9 are continuously subjected to negative pressure in the plane pivotable about the axis 8, the new printing form B can be held in a position which favors the running-in movement during the pulling-in movement.
  • the fixing of the section of the new printing form which is not yet located on the jacket of the printing form cylinder 1 is carried out exclusively by the holding means 9.
  • the device according to the invention could be introduced in a further development Printing form front edge in the channel 11 just at the moment when the channel 11 is below the printing form front edge 28 '.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The device has a reception system (3) receiving the previously employed printing form (A), after releasing its opposing ends from the clamping groove (11) in the surface of the printing cylinder (1) and a delivery system (2) for supplying the new printing form (B) to the printing cylinder. Pivoted retaining devices (9) temporarily acts against part of the new printing form, causing it to be deformed for fitting its leading end into the clamping groove in the printing cylinder. Pref the pivot plane (7) of the retaining devices is adjustable via remote-controlled setting devices (4, 5). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Wechsel von Druckformen an Rotationsdruckmaschinen, welche Druckformzylinder umfassen, die die beiden Enden einer Druckform in einem Kanal aufnehmen, wobei die Oberfläche der Druckform um den Druckformzylinder herum gewunden ist; mit einer eine derzeit auf dem Druckformzylinder befindliche Druckform aufnehmenden Einrichtung, nachdem die Druckform von den Spanneinrichtungen des Druckformzylinders freigegeben ist und einer Einrichtung zur Zufuhr einer neuen Druckform zu dem Druckformzylinder.The invention relates to a device for changing printing forms on rotary printing presses which comprise printing form cylinders which receive the two ends of a printing form in a channel, the surface of the printing form being wound around the printing form cylinder; with a device which currently holds a printing form cylinder on the printing form cylinder after the printing form has been released from the clamping devices of the printing form cylinder and a device for supplying a new printing form to the printing form cylinder.

EP 0 433 798 A2 offenbart ein Verfahren und eine Einrichtung zum automatischen Zuführen bzw. Abführen einer Druckplatte. Bei dieser Vorrichtung ist sowohl ein Speicherbereich für eine zuzuführende Druckform vorgesehen, als auch ein Speicherbereich, in den eine vom Druckformzylinder zu entfernende Druckform einfahren kann, bevor die neue Druckform am Druckformzylinder befestigt wird. Unmittelbar in der Nähe des die Druckformen aufnehmenden Zylinders sind zwar Transport- und Andrückrollen vorgesehen, um ein genaues Einführen der Druckformvorderkante zu gewährleisten; sowohl die neu einzuführende als auch die aus dem Druckwerk zu entfernende Druckform werden jedoch Ober einen größeren Abschnitt ihres Transportweges über ruhende Oberflächen bewegt, so daß ein Verkratzen der empfindlichen Oberflächen sowohl bei der zuzuführenden wie auch bei der zu entfernenden Druckform nicht völlig ausgeschlossen werden kann.EP 0 433 798 A2 discloses a method and a device for automatically feeding or removing a printing plate. In this device, both a storage area is provided for a printing form to be fed, and a storage area into which a printing form to be removed from the printing form cylinder can enter before the new printing form is attached to the printing form cylinder. Transport and pressure rollers are indeed provided in the immediate vicinity of the cylinder receiving the printing formes, in order to ensure precise insertion of the leading edge of the printing form; However, both the newly to be introduced and the printing form to be removed from the printing unit are moved over a larger section of their transport path over resting surfaces, so that scratching of the sensitive surfaces cannot be completely ruled out, both in the printing form to be fed in and in the printing form.

EP 0 432 660 A2 offenbart ein Verfahren zum automatischen Wechseln einer Druckplatte. Bei der zur Durchführung dieses Verfahrens verwirklichten Vorrichtung sind zwischen den Speicherbereichen für die Druckformen eine Anzahl Transportrollen gelagert. Zwischen Transportrollen und der Oberfläche des Druckformzylinders bzw. des breiten Kanals des Druckformzylinders sind ein Hebelwerk und verstellbare Zungen angeordnet, welche einerseits einen erheblichen mechanischen Aufwand darstellen und andererseits die Zugänglichkeit des Druckwerkes der Rotationsdruckmaschine nicht unerheblich beeinträchtigen.EP 0 432 660 A2 discloses a method for automatically changing a printing plate. In the device implemented for carrying out this method, a number of transport rollers are stored between the storage areas for the printing forms. A lever mechanism and adjustable tongues are arranged between transport rollers and the surface of the printing form cylinder or the wide channel of the printing form cylinder, which, on the one hand, represent a considerable mechanical outlay and, on the other hand, not insignificantly impair the accessibility of the printing unit of the rotary printing press.

EP 0 570 702 A1 zeigt eine Vorrichtung zum Zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen, insbesondere Bogenoffsetdruckmaschinen. Bei dieser Vorrichtung ist ein Winkelblech durch ein Pneumatikzylinder betätigbar, der ein Blechprofil an Bürsten andrückt. Durch den zwischen dem Blechprofil und den Bürsten gebildeten Kanal kann eine neue Druckplatte direkt in eine Spannschiene eines Druckformzylinders eingeführt werden. Was mit einer vor dem Zuführen einer neuen Druckform zum Druckformzylinder von diesem zu entnehmenden Druckform geschieht, bleibt unerwähnt, da sich die Lehre dieses Dokumentes des Standes der Technik lediglich die Vereinfachung der Zufuhr der Druckplattenvorderkante zum Anliegen gemacht hat.EP 0 570 702 A1 shows a device for feeding printing plates onto the plate cylinder of printing machines, in particular sheet-fed offset printing machines. In this device, an angle plate can be actuated by a pneumatic cylinder which presses a sheet profile onto the brushes. Through the channel formed between the sheet profile and the brushes, a new printing plate can be inserted directly into a clamping rail of a printing form cylinder. What happens to a printing form to be removed from a printing form cylinder before it is fed to the printing form cylinder remains unmentioned, since the teaching of this prior art document only concerned itself with simplifying the supply of the leading edge of the printing plate.

Schließlich ist aus EP 0 431 715 A2 eine Plattenwechselvorrichtung für Druckmaschinen bekannt geworden. Diese sich auf Bogenrotationsdruckmaschinen beziehende Vorrichtung umfaßt sowohl ein Speicherbereich für eine neu zuzuführende Druckform als auch für die vom Druckformzylinder freigegebenen Druckformen.Finally, a plate changing device for printing machines has become known from EP 0 431 715 A2. This device, which relates to sheet-fed rotary printing presses, comprises both a storage area for a new printing form to be supplied and also for the printing forms released by the printing form cylinder.

Mehrere Druckformen sind in einer zwischen den in Reihenbauweise angeordneten Druckwerken einer Bogenroationsmaschinen schwenkbar gelagerten Kassette aufgenommen. In der Kassette sind mehrere L-förmige Haken aufgenommen, mit denen die einzelnen Druckformen in der Kassette fixierbar sind, so daß zur Speicherung der Druckformen in einer schwenkbaren Kassette ein erheblicher mechanischer Aufwand getrieben werden muß.Several printing forms are mounted in a cassette which is pivotably mounted between the printing units of a sheet-fed rotary printing machine arranged in series added. Several L-shaped hooks are accommodated in the cassette, with which the individual printing forms can be fixed in the cassette, so that a considerable mechanical effort has to be made to store the printing forms in a swiveling cassette.

Ausgehend vom skizzierten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein betriebssicheres Zuführen und Entfernen von Druckformen zu einem Druckformzylinder zu gewährleisten.Based on the outlined prior art, the invention has for its object to ensure reliable feeding and removal of printing forms to a printing form cylinder.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß einen Bereich der zuzuführenden Druckform temporär fixierende schwenkbare Haltemittel diesen derart elastisch deformieren, daß ein Ende der Druckform an die Mantelfläche des Druckformzylinders angestellt ist.According to the invention, this object is achieved in that an area of the printing form to be fed temporarily deformable pivotable holding means deform it elastically in such a way that one end of the printing form is set against the outer surface of the printing form cylinder.

Von Vorteil bei dem Erfindung zugrunde liegenden Gedanke, ist der Umstand, daß die Elastizität der dünnen Druckformen zum Einführen der jeweiligen Druckformvorderkante in einen schmalen Kanal von Druckformzylindern ausgenutzt werden kann; nach Entfernung der vorher auf dem Umfang des Druckformzylinders befindlichen Druckform kann nach der zum Einziehen der neuen Druckform erforderlichen Drehrichtungsumkehr des Druckformzylinders die Vorderkante der neuen Druckform in den Kanal des Druckformzylinders einschnappen. Die zum Einschnappen der Druckformvorderkante in den Kanal erforderliche Kraft wird durch die schwenkbaren Haltemittel aufgebracht, die in einer die Anstellung der Druckformvorderkante erzeugenden Lage positionierbar sind. Die Haltemittel erlauben ein kontinuierliches Einziehen der Druckform, während sie diese im vorderen Teil der Einführschräge von dieser entfernt halten, um eine Beschädigung zu vermeiden. Die kontinuierliche Unterdruckbeaufschlagung der Haltemittel ist während der Einziehbewegung der neuen Druckform durchweg gewährleistet.An advantage of the idea on which the invention is based is the fact that the elasticity of the thin printing formes can be used to insert the respective printing form leading edge into a narrow channel of printing form cylinders; after removal of the printing form previously located on the circumference of the printing form cylinder, after the reversal of the direction of rotation of the printing form cylinder required for pulling in the new printing form, the front edge of the new printing form can snap into the channel of the printing form cylinder. The force required to snap the leading edge of the printing form into the channel is applied by the pivotable holding means, which can be positioned in a position which generates the leading edge of the printing form. The holding means allow the printing forme to be drawn in continuously while holding it in the front part of the insertion bevel in order to avoid damage. The continuous negative pressure on the holding means is consistently guaranteed during the pulling-in movement of the new printing form.

Weitere Ausgestaltungen des der Erfindung zugrunde liegenden Gedankens liegen darin, die Haltemittel in einer um eine Schwenkachse schwenkbaren Ebene verteilt anzuordnen, wodurch ein gleichmäßiges Anliegen eines Bereiches der Druckform an diesen erzielt wird. Ferner ist die Ebene mittels steuerbarer Stelleinheiten bewegbar, wozu beispielsweise druckmediumbeaufschlagte Stellzylinder einsetzbar sind. Die schwenkbare Ebene in der die Haltemittel angeordnet sind, befindet sich oberhalb der Einführschräge. Die Haltemittel sind beispielsweise unterdruckbeaufschlagt ausgeführt, was eine leichte und gleichmäßige Unterdruckversorgung erlaubt, da im Bereich der Druckwerke ohnehin ein Pneumatiksystem vorhanden ist.Further refinements of the idea on which the invention is based lie in arranging the holding means in a distributed manner in a plane pivotable about a pivot axis, as a result of which a region of the printing form lies evenly against it. Furthermore, the level can be moved by means of controllable actuating units, for which purpose actuating cylinders pressurized with pressure medium can be used, for example. The pivotable plane in which the holding means are arranged is located above the insertion slope. The holding means are designed, for example, to be subjected to negative pressure, which allows an easy and uniform supply of negative pressure, since a pneumatic system is already present in the area of the printing units.

Sowohl die eine Druckform zuführenden Einrichtung als auch die die vom Druckformzylinder zu entfernende Druckform aufnehmende Einrichtung sind als Schrägen ausgebildet. Die Förderebenen für die Druckformen in diesen geneigt angeordneten Schrägen werden durch Umfangsflächen drehbar gelagerter Rotationskörper gebildet. Es hat sich als sehr vorteilhaft erwiesen, daß die zuzuführende Druckform in der Einführschräge in im wesentlichen aufrechter Position aufnehmbar ist.Both the device supplying a printing form and the device receiving the printing form to be removed from the printing form cylinder are designed as bevels. The conveying planes for the printing forms in these inclined slopes are formed by peripheral surfaces of rotatably mounted rotating bodies. It has proven to be very advantageous that the printing form to be fed can be received in the insertion bevel in an essentially upright position.

In Weiterführung des der Erfindung zugrunde liegenden Gedankens sind unterhalb der Einführschräge im zur Mantelfläche des Druckformzylinders nächstliegenden Bereich horizontal bewegbare Haltelemente angeordnet. Diese fixieren die Vorderkante einer zuzuführenden Druckform temporär, d.h. solange, bis ein Bereich der zuzuführenden Druckform von den in einer schwenkbaren Ebene liegenden Haltemittel ergriffen wird. Die horizontal bewegbaren Halteelemente sind mit Stelleinheiten versehen, die die horizontale Bewegung bewirken.In continuation of the idea on which the invention is based, horizontally movable holding elements are arranged below the insertion bevel in the area closest to the lateral surface of the printing form cylinder. These temporarily fix the front edge of a printing form to be fed, ie until an area of the printing form to be fed is gripped by the holding means lying in a pivotable plane. The horizontally movable holding elements are provided with actuators that cause the horizontal movement.

Darüner hinaus ist unterhalb der Ausschubschräge ein die zu entfernende Druckform ergreifendes in eine endgültige Entnahmeposition förderndes Haltemittel vorgesehen. Nach Erreichen der endgültigen Entnahmeposition ist die Druckform durch den Drucker sehr leicht entnehmbar. Zur Absicherung der endgültigen Entnahmeposition der zu entnehmenden Druckform ind er Ausschubschräge ist unterhalb der Ausschubschräge mindestens ein Haltebügel vorgesehen.In addition, a holding means which grips the printing form to be removed and promotes a final removal position is provided below the ejection slope. After the final removal position has been reached, the printing form can be removed very easily by the printer. To secure the final removal position of the printing form to be removed, in the ejection slope, at least one holding bracket is provided below the ejection slope.

Anhand einer Zeichnung wird die Erfindung nachstehend detalliert erläutert.The invention is explained in detail below with reference to a drawing.

Es zeigen:

Fig. 1
die Seitenansicht eines Druckwerkzylinderpaares, wobei dem Druckformzylinder eine Einführschräge und eine Ausschubschräge mit pneumatischen Halteelementen zugeordnet ist,
Fig. 2
eine Vorderansicht der erfindungsgemäßen Plattenzu- und Abführvorrichtung,
Fig. 3
eine vergrößerte Darstellung der horizontal bewegbaren Halteelemente,
Fig. 4
den Beginn des Entfernens einer auf dem Druckformzylinder 1 befindlichen Druckform A,
Fig. 5
ein fortgeschrittenes Stadium des Entfernens der Druckform A vom Druckformzylinder 1,
Fig. 6
das Ergreifen der Druckform A durch ein unterhalb der Ausschubschräge angeordnetes Haltemittel,
Fig. 7
das Ablegen der entfernten Druckform A in Haltebügel an der Ausschubschräge,
Fig. 8
das Ergreifen des vorderen Bereiches einer neu einzuführenden Druckform B durch pneumatische Haltemittel,
Fig. 9
das Einhängen der Vorderkante der neu einzuführenden Druckform B in den Kanal des Druckformzylinders und
Fig. 10
die Endphase des Einführvorganges der neu einzuführenden Druckform B.
Show it:
Fig. 1
the side view of a pair of printing couple cylinders, with the printing form cylinder being assigned an insertion slope and an extension slope with pneumatic holding elements,
Fig. 2
a front view of the plate feed and discharge device according to the invention,
Fig. 3
an enlarged view of the horizontally movable holding elements,
Fig. 4
the beginning of the removal of a printing form A located on the printing form cylinder 1,
Fig. 5
an advanced stage of removing printing form A from printing form cylinder 1,
Fig. 6
grasping the printing form A by a holding means arranged below the ejection slope,
Fig. 7
storing the removed printing form A in a bracket on the extension slope,
Fig. 8
grasping the front area of a newly introduced printing form B by pneumatic holding means,
Fig. 9
the hanging of the front edge of the newly introduced printing form B in the channel of the printing form cylinder and
Fig. 10
the final phase of the insertion process of the new printing form B.

Einem Druckformzylinder 1 ist eine Einführschräge 2 sowie eine Ausschubschräge 3 zugeordnet. Die Einführschräge 2 sowie die Ausführschräge 3 werden durch eine Vielzahl in einer Ebene gelagerter lose drehbarer Rollen gebildet, so daß die darauf abzulegenden Durckformen A bzw. B eine reibungsarme Förderung erfahren. Oberhalb der Einführschräge 2 ist ein Stellzylinderpaar 4, 5 gezeigt, welches Haltemittel 9 um eine Achse 8 schwenkt. Anstelle von Stellzylindern 4, 5 weisen auch kompakt bauende elektromotorische Antriebsmittel denkbar, womit die Druckformvorderkante exakt zu dem Zeitpunkt in den Kanal 11 einführbar ist, zu dem dieser gegenüber dem abgewinkelten Ende der Druckformvorderkante liegt. Um die Achse 8 ist ferner eine Führungsschräge 7 schwenkbar angeordnet. Auf der Einführschräge 2 befindet sich in Fig. 1 dargestellten Zustand eine neu einzuführende Druckform B, die eine Vorderkante 28' sowie eine Hinterkante 29' aufweist. Unterhalb der Ausschubschräge 3 ist ein Stellzylinder 6 angeordnet, welcher ein Haltemittel 10 in verschiedenen Positionen innerhalb der Ausschubschräge 3 bewegt. Im vorderen Bereich der Ausschubschräge 3 sind Haltebügel 16 angeordnet, in welche die Vorderkante einer vom Druckformzylinder 1 zu entnehmenden Druckform A abgelegt werden kann.An insertion slope 2 and an extension slope 3 are assigned to a printing form cylinder 1. The lead-in bevel 2 and the lead-out bevel 3 are formed by a plurality of loosely rotatable rollers mounted in one plane, so that the pressure molds A and B to be deposited thereon experience low-friction conveyance. Above the bevel 2, a pair of actuating cylinders 4, 5 is shown, which pivots holding means 9 about an axis 8. Instead of actuating cylinders 4, 5, compact electromotive drive means are also conceivable, with which the printing form front edge can be inserted into the channel 11 exactly at the point in time at which it lies opposite the angled end of the printing form front edge. A guide bevel 7 is also arranged pivotably about the axis 8. In the state shown in FIG. 1, on the insertion bevel 2, there is a printing form B to be newly introduced, which has a front edge 28 'and a rear edge 29'. A positioning cylinder 6 is arranged below the extension slope 3, which moves a holding means 10 in different positions within the extension slope 3. In the front area of the extension slope 3 there are holding brackets 16 into which the front edge of a printing form A to be removed from the printing form cylinder 1 can be placed.

Auf den gezeigten Druckformzylinder 1 ist gegegenwärtig eine zu wechselnde Druckform A aufgenommen. Deren Vorderkante 28 bzw. deren Hinterkante 29 sind gemeinsam in einem Kanal 11 aufgenommen, welcher im Druckformzylinder 1 ausgeführt ist. Mit der Mantelfläche des Druckformzylinders 1 arbeitet ferner eine Anpreßwalze 17 zusammen, sowie der darunter angeordnete, nicht näher dargestellte Übertragungszylinder 40. Der Druckformzylinder 1 und der damit zusammenarbeitende nicht näher dargestellte Übertragungszylinder 40 bilden beispielsweise eine oberes Druckwerk in einer Rotationsdruckmaschine, welches oberhalb einer zu verarbeitenden Materialbahn angeordnet ist.A printing form A to be changed is currently accommodated on the printing form cylinder 1 shown. Their front edge 28 or their rear edge 29 are received together in a channel 11 which is embodied in the printing form cylinder 1. A pressure roller 17 also works together with the lateral surface of the printing form cylinder 1, as well as the transfer cylinder 40 (not shown in detail) arranged underneath. The printing form cylinder 1 and the transfer cylinder 40 (not shown in detail) which cooperate therewith form, for example, an upper printing unit in a rotary printing press, which is above an area to be processed Material web is arranged.

Es sei noch bemerkt, daß die Einführschräge 2 an deren Unterseite durch schematisch angeordnete Haltestifte 82 und 83, die senkrecht zur Zeichenebene bewegbar sind, begrenzt wird.It should also be noted that the insertion slope 2 is delimited on the underside by schematically arranged holding pins 82 and 83 which can be moved perpendicular to the plane of the drawing.

Fig. 2 zeigt eine Vorderansicht der erfindungsgemäßen Einrichtung.Fig. 2 shows a front view of the device according to the invention.

In den hier lediglich schematisch widergegebenen Seitenwänden einer Rotationsdruckmaschine sind ein Druckformzylinder 1 sowie ein Übertragungszylinder 40 drehbar gelagert. Ferner ist einem Druckformzylinder 1 eine Anpreßwalze 17 zugeordnet.A printing form cylinder 1 and a transfer cylinder 40 are rotatably mounted in the side walls of a rotary printing press, which are only shown schematically here. Furthermore, a pressure roller 17 is assigned to a printing form cylinder 1.

An einer der Seitenwände ist ein Stellzylinderpaar 4, 5 befestigt, welches eine Achse 8, die sowohl eine Führungsschräge 7, als auch die Ebene aufnimmt, in der die Haltemittel 9 angeordnet sind, verschwenkt. In den schematisch angeordneten Seitenwänden sind ferner die Halteelemente 82 und 83 aufgenommen. Das Halteelement 82 weist einen seitlichen Anschlag 81 auf. Wie aus der Darstellung gemäß Fig. 2 hervorgeht, sind die Halteelemente 82 und 83 durch je eine Stelleinheit 80 und 84 in horizontaler Richtung bewegbar. Bei den Stelleinheiten 80 und 84 kann es sich um elektromagentisch betätigte Einheiten oder um Pneumatikzylinder handeln, die an die Luftversorgung der Rotationsdruckmaschine anschließbar sind. Sind die Halteelemente 82 und 83 in ihre gestrichelte Position ausgefahren, ruht das vordere Ende der auf dem Druckformzylinder 1 zu befestigenden Druckform B auf diesem, durch den Seitenanschlag 81 korrekt seitlich ausgerichtet.On one of the side walls, a pair of actuating cylinders 4, 5 is fastened, which pivots an axis 8, which receives both a guide bevel 7 and the plane in which the holding means 9 are arranged. The holding elements 82 and 83 are also accommodated in the schematically arranged side walls. The holding element 82 has a lateral stop 81. As can be seen from the illustration according to FIG. 2, the holding elements 82 and 83 can each be moved in the horizontal direction by an adjusting unit 80 and 84. Both Adjustment units 80 and 84 can be solenoid-operated units or pneumatic cylinders that can be connected to the air supply of the rotary printing press. If the holding elements 82 and 83 are extended to their dashed position, the front end of the printing form cylinder B to be fastened on the printing form cylinder 1 rests thereon, correctly aligned laterally by the side stop 81.

Aus der Darstellung gemäß Fig. 2 geht überdies hervor, daß die die Haltemittel 10 betätigenden Stellzylinder unterhalb der Ausschubschräge 3 angeordnet sind und die Haltemittel 10 an stangenförmigen Verlängerungen aufnehmen. Mit diesen Haltemitteln 10 kann, wie bereits erwähnt die zu entfernende Druckform A vollständig aus dem Druckwerk entfernt und in die Ausschubschräge 3 nach unten begrenzenden Haltebügel 16 eingestellt werden. Oberhalb der Ausschrubschräge 3 ist die Einführschräge 2 jeweils schematisch angedeutet. Um die Achse 8 ist die Ebene schwenkbar, in welcher die Haltemittel 9 aufgenommen sind. Die Haltemittel 9 sind dabei untereinander durch eine zentrales Luftunterdruckversorgungssystem miteinander verbunden, was die gleichzeitige und gleichmäßige Beaufschlagung dieser Haltemittel während des Einführens der neuen Druckform B gewährleistet. Bei Maschinen mit mehreren am Druckformzylinder nebeneinander aufgenommenen Druckformen können selbstverständlich mehrere erfindungsgemäße Druckformwechseleinheiten nebeneinander angeordnet werden.2 also shows that the actuating cylinders actuating the holding means 10 are arranged below the extension slope 3 and hold the holding means 10 on rod-shaped extensions. With these holding means 10, as already mentioned, the printing form A to be removed can be completely removed from the printing unit and inserted into the holding bracket 16 which delimits the downward slope 3. Above the scraping slope 3, the insertion slope 2 is indicated schematically in each case. The plane in which the holding means 9 are received can be pivoted about the axis 8. The holding means 9 are interconnected by a central air vacuum supply system, which ensures the simultaneous and uniform loading of these holding means during the introduction of the new printing form B. In the case of machines with a plurality of printing forms accommodated next to one another on the printing form cylinder, a number of printing form changing units according to the invention can of course be arranged next to one another.

Fig. 3 zeigt eine vergrößerte Darstellung der eine neu aufzubringende Druckform B fixierenden Halteelemente.3 shows an enlarged illustration of the holding elements which fix a new printing form B to be applied.

Die Halteelemente 82 und 83 sind als Winkelstücke ausgebildet, wobei sie von einer zylindrischen Stelleinheit 84 bewegt werden können. Ein Kaltelement, in diesem Falle das Halteelment 82 weist einen seitlichen Anschlag 81 auf, um die neu aufzubringende Druckform B korrekt vor dem Einzugs ins Druckwerk seitlich auszurichten.The holding elements 82 and 83 are designed as angle pieces, wherein they can be moved by a cylindrical actuating unit 84. A cold element, in this case the holding element 82, has a lateral stop 81 in order to correctly align the new printing form B to be applied laterally before it is drawn into the printing unit.

In der Darstellung gemäß Fig. 4 ist gezeigt, wie die zu wechselnde Druckform A vom Druckformzylinder 1 in die Ausschubschräge 3 einläuft. Das Hinterkantenende 29 liegt vor dem Haltebügel 16 auf einer Rolle auf. Die weitere Rotation des Druckformzylinders 1 in Pfeilrichtung bewirkt, daß die vom Druckformzylinder 1 ablaufende Druckform A auf die Rollen, die die Ausschubschräge 3 definieren, aufläuft. Der Ablauf der Druckform A vom Mantel des Druckformzylinders 1 wird durch die Anpreßwalze 17 unterstützt. Die Ablaufbewegung der zu wechselnden Druckform A erfolgt einzig und alleine durch die Bewegung des Druckformzylinders 1. Es bedarf keiner weiteren Unterstützung des Transportes der zu wechselnden Druckform A.4 shows how the printing form A to be changed runs from the printing form cylinder 1 into the ejection slope 3. The rear edge end 29 lies in front of the bracket 16 on a roll. The further rotation of the printing form cylinder 1 in the direction of the arrow causes the printing form A running from the printing form cylinder 1 to run onto the rollers which define the extension slope 3. The course of the printing form A from the jacket of the printing form cylinder 1 is supported by the pressure roller 17. The movement of the printing form A to be changed takes place solely by the movement of the printing form cylinder 1. No further support for the transport of the printing form A to be changed is required.

In der gezeigten Darstellung gemäß Fig. 4 ruht die neue Druckform B auf den in der Einführschräge 2 auf den Halteelementen 82 und 83. Das Stellzylinderpaar 4, 5 hält die Haltemittel 9 in einer abgeschwenkten Position.In the illustration shown in FIG. 4, the new printing form B rests on the holding elements 82 and 83 in the insertion slope 2. The actuating cylinder pair 4, 5 holds the holding means 9 in a pivoted-down position.

In der Darstellung gemäß Fig. 5 ist die vom Druckformzylinder 1 ablaufende Druckform A weiter in die Ausschubschräge 3 transportiert, jedoch noch nicht vom Haltemittel 10, welches durch den Stellzylinder 6 betätigt wird, ergriffen. Wie bereits in Fig. 4 erläutert, liegt die ablaufende Druckform A mit ihrer druckenden Oberfläche auf einer Rolle zum Schutz gegen Kratzer durch den Haltebügel 16 auf.5, the printing form A running from the printing form cylinder 1 is transported further into the ejection slope 3, but has not yet been gripped by the holding means 10, which is actuated by the actuating cylinder 6. As already explained in FIG. 4, the printing form A that is running lies with its printing surface on a roller for protection against scratches by the holding bracket 16.

Die Betätigungselemente, für die neue Druckform B, welche sich in der Einführschräge 2 befindet, sind nach wie vor in Ruhe.The actuators for the new printing form B, which is located in the insertion slope 2, are still at rest.

Im in Fig. 6 gezeigten Zustand hat die zu wechselnde Druckform A den Mantel des Druckformzylinders 1 verlassen. Die Vorderkante 28 der Druckform A ruht auf der Anpreßwalze 17. Sie wird weiterhin durch eine vor den Haltebügel 16 angeordneten Rolle gegen Verkratzen geschützt. Die Hinterkante 29 der zu wechselnden Druckform A hat die Rollen, die die Ausschübschräge 3 definieren, bereits verlassen. In dieser Position wird die druckende Seite der zu wechselnden Druckform A durch ein pneumatisches Haltemittel 10 ergriffen, da ein weiterer Transportvorschub entgegen der Schwerkfraft in der Ausschubschräge 3 durch eine Rotation des Druckformzylinders 1 nicht mehr erfolgen kann, da kein Kontakt mehr mit diesem besteht.In the state shown in FIG. 6, the printing form A to be changed has left the jacket of the printing form cylinder 1. The front edge 28 of the printing form A rests on the Pressure roller 17. It is also protected against scratching by a roller arranged in front of the holding bracket 16. The rear edge 29 of the printing form A to be changed has already left the rollers which define the extension slope 3. In this position, the printing side of the printing form A to be changed is gripped by a pneumatic holding means 10, since a further transport advance against gravity in the ejection slope 3 can no longer take place by rotating the printing form cylinder 1, since there is no longer any contact with it.

Gemäß der Darstellung in Fig. 7 wird die zu wechselnde Druckform A durch das Haltemittel 10, welches sich bis in eine ausgelenkte Lage 10' bewegt, soweit in die Ausschubschräge 3 transportiert, bis die Vorderkante 28 der zu wechselnden Druckform 8 in die Haltebügel 16 einrastet und dort aufliegt. In dieser Lage ist die zu wechselnde Druckform A gegen Beschädigung und gegen Herabfallen gesichert, daher kann der Unterdruck im Haltemittel 10 abgeschaltet werden, und die zu wechselnde Druckform 8 vom Drucker entommen werden. In diesem Zustand sind die die neue Druckform B bewegenden Vorrichtungen noch in Ruhe.According to the illustration in FIG. 7, the printing form A to be changed is transported by the holding means 10, which moves into a deflected position 10 ', into the extension slope 3 until the front edge 28 of the printing form 8 to be changed engages in the holding bracket 16 and lies there. In this position, the printing form A to be changed is secured against damage and against falling, so the negative pressure in the holding means 10 can be switched off and the printing form 8 to be changed can be removed by the printer. In this state, the devices moving the new printing form B are still at rest.

Im in Fig. 8 gezeigten Zustand werden die in einer um die Achse 8 schwenkbaren Ebene aufgenommenen pneumatischen Haltemittel 9 durch das Stellzylinderpaar 4, 5 in Kontakt mit der Rückseite der neuen Druckform B gebracht. Die Schwenkbewegung der Ebene mit den Haltemitteln 9 um die Achse 8 hat zur Folge, daß sich die Führungsschräge 7 aufstellt und einen Einlauftrichter definiert. Nunmehr rotiert der Druckformzylinder 1 im Kriechgang in Pfeilrichtung entgegengesetzt zur in den bisherigen Figuren dargestellten Drehrichtung. Die Haltelemente 82 und 83 fahren in ihre Stelleinheiten zurück und geben die Vorderkante 28 der neuen Druckform B frei. Diese wird nunmehr ausschließlich durch die Haltemittel 9 in der um die Achse 8 verschwenkbaren Ebene gehalten. Durch die Saugbeaufschlagung Haltemittel 9 stellt sich der vordere Bereich der neuen Druckform B gegen die Mantelfläche des Druckformzylinder 1 an. Dadurch wird die Vorderkante 28' der neuen Druckform B vom Kanal 11 des Druckformzylinders 1 ergriffen, wodurch sich der Beginn der Einzugsbewegung der neuen Druckform B einstellt. Da die Haltemittel 9 in der um die Achse 8 schwenkbaren Ebene kontinuierlich mit Unterdruck beaufschlagt sind, kann während der Einziehbewegung der neuen Druckform B diese in einer die Einlaufbewegung begünstigenden Position gehalten werden. Die Fixierung des jeweils noch nicht auf dem Mantel des Druckformzylinders 1 befindlichen Abschnittes der neuen Druckform erfolgt ausschließlich durch die Haltemittel 9. Bei Verwendung kompakt bauender elektromotorischer Antriebsmittel anstelle der Stellzylinder 4, 5 zur Bewegung der Haltemittel 9 könnte in Weiterentwicklung der erfindungsgemäßen Vorrichtung ein Einführen der Druckformvorderkante in den Kanal 11 just in dem Augenblick erfolgen, in dem der Kanal 11 unterhalb der Druckformvorderkante 28' liegt.In the state shown in FIG. 8, the pneumatic holding means 9 received in a plane pivotable about the axis 8 are brought into contact with the rear side of the new printing form B by the actuating cylinder pair 4, 5. The pivoting movement of the plane with the holding means 9 about the axis 8 has the result that the guide bevel 7 rises and defines an inlet funnel. Now the printing form cylinder 1 rotates in the crawl gear in the direction of the arrow opposite to the direction of rotation shown in the previous figures. The holding elements 82 and 83 move back into their actuating units and release the front edge 28 of the new printing form B. This is now exclusively by the holding means 9 in the pivotable about the axis 8 Kept level. The suction area of the holding means 9 positions the front area of the new printing form B against the outer surface of the printing form cylinder 1. As a result, the front edge 28 'of the new printing form B is gripped by the channel 11 of the printing form cylinder 1, as a result of which the start of the drawing-in movement of the new printing form B occurs. Since the holding means 9 are continuously subjected to negative pressure in the plane pivotable about the axis 8, the new printing form B can be held in a position which favors the running-in movement during the pulling-in movement. The fixing of the section of the new printing form which is not yet located on the jacket of the printing form cylinder 1 is carried out exclusively by the holding means 9. When using compact electromotive drive means instead of the actuating cylinders 4, 5 for moving the holding means 9, the device according to the invention could be introduced in a further development Printing form front edge in the channel 11 just at the moment when the channel 11 is below the printing form front edge 28 '.

In Fig. 10 ist der vollständige Einzug der neuen Druckform B auf die Mantelfläche des Druckformzylinders 1 nahezu abgeschlossen. Die Vorderkante 28' der neuen Druckform B ist in den Kanal 11 eingeführt, während das rückwärtige Ende 29' der Druckform B noch durch die Haltemittel 9 oberhalb der Einführschräge 2 gehalten wird. Ein Abschalten des Unterdrucks zum jetzigen Zeitpunkt bewirkt eine Freigabe der Hinterkante 29' der neuen Druckform B, wodurch unterstützt durch die Anpreßwalze 17, die neue Druckform B auf den Mantel des Druckformzylinders 1 gedrückt wird, bis nach Passage der Anpreßwalze das rückwärtige Ende 29' der Druckform B in den Kanal 11 des Druckformzylinders 1 eintaucht.10, the complete retraction of the new printing form B on the outer surface of the printing form cylinder 1 is almost complete. The front edge 28 'of the new printing form B is inserted into the channel 11, while the rear end 29' of the printing form B is still held above the insertion bevel 2 by the holding means 9. Switching off the negative pressure at the present time causes the rear edge 29 'of the new printing forme B to be released, which, supported by the pressure roller 17, presses the new printing forme B onto the jacket of the printing form cylinder 1 until the rear end 29' of the pressure roller has passed Printing form B is immersed in channel 11 of printing form cylinder 1.

BezugszeichenlisteReference list

11
DruckformzylinderPrinting form cylinder
22nd
EinführschrägeChamfer
33rd
AusschubschrägeDraft slope
44th
StellzylinderActuating cylinder
55
StellzylinderActuating cylinder
66
StellzylinderActuating cylinder
77
FührungsschrägeLeading slope
88th
Achseaxis
99
HaltemittelHolding means
1010th
HaltemittelHolding means
10'10 '
Haltemittel, ausgefahrenRetaining device, extended
1111
Kanalchannel
1616
HaltebügelBracket
1717th
AnpreßwalzePressure roller
2727
KanalkanteChannel edge
2828
Vorderkante Druckform AFront edge of printing form A
28'28 '
Vorderkante Druckform BFront edge of printing form B
2929
Hinterkante Druckform ATrailing edge of printing form A
29'29 '
Hinterkante Druckform BTrailing edge of printing form B
4040
ÜbertragungszylinderTransfer cylinder
8080
StelleinheitActuator
8181
SeitenanschlagSide stop
8282
HaltestiftRetaining pin
8383
HaltestiftRetaining pin
8484
StelleinheitActuator
AA
zu wechselnde Druckformprinting form to be changed
BB
neue Druckformnew printing form

Claims (14)

Vorrichtung zum Wechsel von Druckformen an Rotationsdruckmaschinen, welche Druckformzylinder (1) umfassen, die die beiden Enden (28, 29) einer Druckform in einem Kanal (11) aufnehmen, wobei die Oberfläche der Druckformen um den Druckformzylinder (1) herum gewunden ist; mit einer eine derzeit auf dem Druckformzylinder (1) befindliche Druckform A aufnehmenden Einrichtung (3), nachdem diese von den Spanneinrichtungen des Druckformzylinders (1) freigegeben ist und einer Einrichtung (2) zur Zufuhr einer neuen Druckform B zu dem Druckformzylinder (1),
dadurch gekennzeichnet,
daß einen Bereich der zuzuführenden Druckform B temporär fixierende schwenkbare Haltemittel (9), diesen derart elastisch deformieren, daß ein Ende (28) der Druckform B an die Mantelfläche des Druckformzylinders (1) angestellt ist.Device for changing printing forms on rotary printing presses, which comprise printing form cylinders (1) which receive the two ends (28, 29) of a printing form in a channel (11), the surface of the printing forms being wound around the printing form cylinder (1); with a device (3) which currently holds a printing form cylinder A on the printing form cylinder (1) after it has been released by the clamping devices of the printing form cylinder (1) and a device (2) for feeding a new printing form B to the printing form cylinder (1),
characterized by
that an area of the printing form B to be supplied which temporarily fixes pivotable holding means (9), deform it elastically such that one end (28) of the printing form B is set against the outer surface of the printing form cylinder (1). Vorrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die Haltemittel (9) in einer um eine Schwenkachse (8) schwenkbaren Ebene (7) verteilt angeordnet sind.Device according to claim 1,
characterized by
that the holding means (9) are arranged distributed in a plane (7) pivotable about a pivot axis (8). Vorrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die Ebene (7) mittels fernsteuerbarer Stelleinheiten (4, 5) bewegbar ist.Device according to claim 1,
characterized by
that the plane (7) can be moved by means of remote-controlled actuating units (4, 5). Vorrichtung gemäß Anspruch 2,
dadurch gekennzeichnet,
daß die schwenkbare Ebene (7) oberhalb der Einführungschräge (2) angeordnet ist.Device according to claim 2,
characterized by
that the pivotable plane (7) is arranged above the insertion slope (2). Vorrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die schwenkbaren Haltemittel (9) unterdruckbeaufschlagt sind.Device according to claim 1,
characterized by
that the pivotable holding means (9) are pressurized. Vorrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die einer Druckform B zuführende Einrichtung (") als Einführschräge ausgebildet ist.Device according to claim 1,
characterized by
that the device (") feeding a printing form B is designed as an insertion bevel. Vorrichtung gemäß Anspruch 1,
dadurch gekennzeichnet,
daß die eine vom Druckformzylinder (1) zu entfernende Druckform A aufnehmende Einrichtung (3) als Ausschubschräge ausgeführt ist.Device according to claim 1,
characterized by
that the one of the printing form cylinder (1) to remove printing form A receiving device (3) is designed as an extension slope. Vorrichtung gemäß der Ansprüch 6 und 7,
dadurch gekennzeichnet,
daß die Förderebene der Druckformen in der Einführschräge (2) und der Ausschubschräge (3) durch die Umfangsflächen drehbar gelagerte Rotationskörper gebildet sind.Device according to claims 6 and 7,
characterized by
that the conveying plane of the printing forms in the insertion slope (2) and the ejection slope (3) are formed by the rotating bodies rotatably mounted rotating bodies. Vorrichtung gemäß Anspruch 6,
dadurch gekennzeichnet,
daß die zuzuführenden Druckform B in der Zuführschräge (2) in im wesentlichen in aufrechter Position aufnehmbar ist.Device according to claim 6,
characterized by
that the printing form B to be fed can be received in the feed slope (2) in an essentially upright position. Vorrichtung gemäß Anspruch 6,
dadurch gekennzeichnet,
daß unterhalb der Einführschräge (2) im zur Mantelfläche des Druckformzylinders (1) nächsten Bereich horizontal bewegbare Halteelemente (82, 83) angeordnet sind.Device according to claim 6,
characterized by
that horizontally movable holding elements (82, 83) are arranged below the insertion slope (2) in the area next to the lateral surface of the printing form cylinder (1). Vorrichtung gemäß Anspruch 10,
dadurch gekennzeichnet,
daß die horizontal bewegbaren Halteelemente (82, 83) eine Vorderkante (28') einer zuzuführenden Druckform B temporär fixieren.Device according to claim 10,
characterized by
that the horizontally movable holding elements (82, 83) temporarily fix a front edge (28 ') of a printing form B to be fed. Vorrichtung gemäß Anspruch 10,
dadurch gekennzeichnet,
daß die Halteelemente (82, 83) mit Stelleinheiten (80, 84) verbunden sind.Device according to claim 10,
characterized by
that the holding elements (82, 83) are connected to actuating units (80, 84). Vorrichtung gemäß Anspruch 7,
dadurch gekennzeichnet,
daß unterhalb der Ausschubschräge (3) ein die zu entfernende Druckform A ergreifendes, in eine Entnahmeposition förderndes Haltemittel (10) vorgesehen ist.Device according to claim 7,
characterized by
that a holding means (10) which grips the printing form A to be removed and promotes a removal position is provided below the ejection slope (3). Vorrichtung gemäß Anspruch 7,
dadurch gekennzeichnet,
daß Ausschubschräge (3) im unteren Bereich mindestens einen Haltebügel (16) aufweist.Device according to claim 7,
characterized by
that extension slope (3) has at least one bracket (16) in the lower region.
EP95102223A 1994-04-18 1995-02-17 Device for exchanging printing plates in a rotary printing machine Expired - Lifetime EP0678383B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9404609 1994-04-18
FR9404609A FR2718675B1 (en) 1994-04-18 1994-04-18 Device for exchanging pictures of rotary printing machines.

Publications (2)

Publication Number Publication Date
EP0678383A1 true EP0678383A1 (en) 1995-10-25
EP0678383B1 EP0678383B1 (en) 1998-05-13

Family

ID=9462220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102223A Expired - Lifetime EP0678383B1 (en) 1994-04-18 1995-02-17 Device for exchanging printing plates in a rotary printing machine

Country Status (7)

Country Link
US (1) US5526747A (en)
EP (1) EP0678383B1 (en)
JP (1) JP3810453B2 (en)
AT (1) ATE166031T1 (en)
CA (1) CA2144195A1 (en)
DE (1) DE59502147D1 (en)
FR (1) FR2718675B1 (en)

Cited By (27)

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US6345575B1 (en) 1998-11-13 2002-02-12 Heidelberger Druckmaschinen Ag Pivotable printing-form changing device and method for changing printing forms
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US6601508B1 (en) 1999-03-26 2003-08-05 Heidelberger Druckmaschinen Ag Device for clamping printing forms in clamping channels of reduced size
DE10238106A1 (en) * 2002-08-21 2004-03-04 Koenig & Bauer Ag Fitting a printing plate to the cylinder, of a rotary printing press, inserts the leading hanging leg into the holding slit to hook against the leading edge by radial force through relative movements
WO2004020202A2 (en) * 2002-08-21 2004-03-11 Koenig & Bauer Aktiengesellschaft Devices for mounting a printing plate onto a plate cylinder of a printing press
WO2004020201A1 (en) 2002-08-21 2004-03-11 Koenig & Bauer Aktiengesellschaft Method and device for mounting packing onto the cylinder of a printing press
DE10238124A1 (en) * 2002-08-21 2004-03-11 Koenig & Bauer Ag Assembly to fit printing plate around cylinder, in rotary offset printing press, has limit stop and roller to align plate at cylinder surface and block access to hazardous areas for safety
WO2004020203A1 (en) 2002-08-21 2004-03-11 Koenig & Bauer Aktiengesellschaft Method for changing at least one printing plate and a printing press comprising several plate cylinders
DE19531024B4 (en) * 1994-11-16 2005-01-27 Kabushiki Kaisha Tokyo Kikai Seisakusho Apparatus and method for mounting a printing plate on a plate cylinder of a rotary printing press
EP1155839A3 (en) * 2000-05-17 2006-02-22 Komori Corporation Device for changing a printing plate
US7150223B2 (en) 2001-11-28 2006-12-19 Koenig & Bauer Aktiengesellschaft Devices and methods for the alignment or mounting of a covering applied to a cylinder in a printing machine
EP1900525A2 (en) 2002-08-21 2008-03-19 Koenig &amp; Bauer Aktiengesellschaft Method for mounting a printing form onto a plate cylinder in a printing press
DE102007030174B3 (en) * 2007-06-27 2008-10-23 Koenig & Bauer Aktiengesellschaft Method for mounting a flexible printing plate on a forme cylinder of a rotary printing machine
DE202008015082U1 (en) 2008-11-13 2009-01-15 Manroland Ag Device for changing and receiving printing forms on rotary printing machines
EP2110245A2 (en) * 2008-04-18 2009-10-21 Manroland AG Device for holding a printing plate in the vicinity of a printing device
US7647868B2 (en) 2004-05-14 2010-01-19 Koenig & Bauer Aktiengesellschaft Method for feeding a printing forme to a forme cylinder of a printing press
DE102008043725A1 (en) 2008-11-13 2010-06-02 Manroland Ag Device for exchanging and for receiving printing plates at rotary printing presses, comprises manipulator arm with holding element for holding printing plate
EP2110246A3 (en) * 2008-04-18 2010-07-07 manroland AG Printing plate exchangeable device
EP2110247A3 (en) * 2008-04-18 2010-07-21 Manroland AG Method for positioning a printing plate on a form cylinder
EP2415603A1 (en) * 2010-08-06 2012-02-08 Koenig & Bauer Aktiengesellschaft Supply device for supplying a printing plate comprising a bent hook-in leg at least at its end running in the direction of production to a form cylinder of a printing unit
EP2415604A1 (en) * 2010-08-06 2012-02-08 Koenig & Bauer Aktiengesellschaft Device for removing a printing plate from a form cylinder of a printing unit
DE102010042117A1 (en) * 2010-10-07 2012-04-12 Koenig & Bauer Aktiengesellschaft Printing plate changing system of printing system, has transfer unit that applies printing plate on attachment element after absorption by transfer unit and prior to winding on cylinder
WO2012045495A1 (en) 2010-10-07 2012-04-12 Koenig & Bauer Aktiengesellschaft Printing-forme changing system of a press unit, logistics system in a printing works and method for applying one or more printing formes to a forme cylinder of a press unit
WO2016046764A1 (en) * 2014-09-24 2016-03-31 Bobst Firenze S.R.L. An apparatus and method for changing a blade of a rotary die cutter, particularly for flexographic printing machines
DE102021109488A1 (en) 2021-04-15 2022-10-20 Koenig & Bauer Ag Device for supplying printing plates and method for carrying out a plate change

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US5678487A (en) * 1995-11-15 1997-10-21 Heidelberg Harris Inc. Apparatus for mounting flexible plates in a printing unit
US6113346A (en) 1996-07-31 2000-09-05 Agfa Corporation Method for loading and unloading a supply of plates in an automated plate handler
DE19719559A1 (en) * 1997-05-09 1998-11-12 Koenig & Bauer Albert Ag Method and device for assembling flexible pressure plates
JPH11170485A (en) * 1997-12-16 1999-06-29 Komori Corp Plate replacing apparatus
JP4987179B2 (en) * 2000-05-17 2012-07-25 株式会社小森コーポレーション Plate changer
DE10052773B4 (en) * 2000-10-25 2005-02-17 Koenig & Bauer Ag Apparatus for feeding a printing plate onto a plate cylinder of a printing machine
DE10314344B3 (en) * 2003-03-28 2004-08-26 Koenig & Bauer Ag Storage device for elevator supplying print cylinder of printing press stores elevators in at least two offset vertical planes
US6948430B1 (en) * 2004-03-23 2005-09-27 Agfa Corporation Printing plate conveyor system
DE102006061316B4 (en) * 2006-12-22 2014-11-20 Koenig & Bauer Aktiengesellschaft Device having a plurality of storage planes each arranged at a distance from one another
JP5171162B2 (en) * 2007-08-01 2013-03-27 株式会社小森コーポレーション Plate handling equipment
JP2009285954A (en) * 2008-05-28 2009-12-10 Mitsubishi Heavy Ind Ltd Form plate replacing device and printer

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JPH05503A (en) 1991-06-24 1993-01-08 Sony Corp Plate loading device
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Cited By (40)

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DE19531024B4 (en) * 1994-11-16 2005-01-27 Kabushiki Kaisha Tokyo Kikai Seisakusho Apparatus and method for mounting a printing plate on a plate cylinder of a rotary printing press
US6345575B1 (en) 1998-11-13 2002-02-12 Heidelberger Druckmaschinen Ag Pivotable printing-form changing device and method for changing printing forms
US6601508B1 (en) 1999-03-26 2003-08-05 Heidelberger Druckmaschinen Ag Device for clamping printing forms in clamping channels of reduced size
EP1086811A2 (en) * 1999-09-14 2001-03-28 Komori Corporation Plate removal apparatus in rotary printing press
US6450095B1 (en) 1999-09-14 2002-09-17 Komori Corporation Plate removal apparatus in rotary printing press
EP1086811A3 (en) * 1999-09-14 2002-02-06 Komori Corporation Plate removal apparatus in rotary printing press
EP1101612A3 (en) * 1999-11-22 2002-03-27 Heidelberger Druckmaschinen Aktiengesellschaft Method and device for automatic mounting a printing plate to a plate cylinder of a rotary press
US6460457B1 (en) 1999-11-22 2002-10-08 Heidelberger Druckmaschinen Ag Method and device for automatically providing a printing plate to a plate cylinder
EP1101612A2 (en) * 1999-11-22 2001-05-23 Heidelberger Druckmaschinen Aktiengesellschaft Method and device for automatic mounting a printing plate to a plate cylinder of a rotary press
EP1155839A3 (en) * 2000-05-17 2006-02-22 Komori Corporation Device for changing a printing plate
DE10158158A1 (en) * 2001-11-28 2003-06-18 Koenig & Bauer Ag Device for winding an elevator
US7150223B2 (en) 2001-11-28 2006-12-19 Koenig & Bauer Aktiengesellschaft Devices and methods for the alignment or mounting of a covering applied to a cylinder in a printing machine
US6941866B2 (en) 2001-11-28 2005-09-13 Koenig & Bauer Aktiengesellschaft Mechanism for positioning a cylinder dressing
US7322290B2 (en) 2002-08-21 2008-01-29 Koenig & Bauer Aktiengesellschaft Method for changing at least one printing plate and a printing press comprising several plate cylinders
WO2004020202A3 (en) * 2002-08-21 2004-07-29 Koenig & Bauer Ag Devices for mounting a printing plate onto a plate cylinder of a printing press
WO2004020203A1 (en) 2002-08-21 2004-03-11 Koenig & Bauer Aktiengesellschaft Method for changing at least one printing plate and a printing press comprising several plate cylinders
EP1535736A2 (en) 2002-08-21 2005-06-01 Koenig &amp; Bauer Aktiengesellschaft Method for exchanging at least one printing plate of a plate cylinder
DE10238124A1 (en) * 2002-08-21 2004-03-11 Koenig & Bauer Ag Assembly to fit printing plate around cylinder, in rotary offset printing press, has limit stop and roller to align plate at cylinder surface and block access to hazardous areas for safety
WO2004020201A1 (en) 2002-08-21 2004-03-11 Koenig & Bauer Aktiengesellschaft Method and device for mounting packing onto the cylinder of a printing press
WO2004020202A2 (en) * 2002-08-21 2004-03-11 Koenig & Bauer Aktiengesellschaft Devices for mounting a printing plate onto a plate cylinder of a printing press
DE10238106A1 (en) * 2002-08-21 2004-03-04 Koenig & Bauer Ag Fitting a printing plate to the cylinder, of a rotary printing press, inserts the leading hanging leg into the holding slit to hook against the leading edge by radial force through relative movements
EP1900525A2 (en) 2002-08-21 2008-03-19 Koenig &amp; Bauer Aktiengesellschaft Method for mounting a printing form onto a plate cylinder in a printing press
EP1900524A2 (en) 2002-08-21 2008-03-19 Koenig & Bauer AG Method for mounting a printing form onto a plate cylinder in a printing press
US7367265B2 (en) 2002-08-21 2008-05-06 Koenig & Bauer Aktiengesellschaft Method and device for mounting dressings onto the cylinder of a printing press
US7647868B2 (en) 2004-05-14 2010-01-19 Koenig & Bauer Aktiengesellschaft Method for feeding a printing forme to a forme cylinder of a printing press
DE102007030174B3 (en) * 2007-06-27 2008-10-23 Koenig & Bauer Aktiengesellschaft Method for mounting a flexible printing plate on a forme cylinder of a rotary printing machine
EP2110245A2 (en) * 2008-04-18 2009-10-21 Manroland AG Device for holding a printing plate in the vicinity of a printing device
EP2110246A3 (en) * 2008-04-18 2010-07-07 manroland AG Printing plate exchangeable device
EP2110247A3 (en) * 2008-04-18 2010-07-21 Manroland AG Method for positioning a printing plate on a form cylinder
EP2110245A3 (en) * 2008-04-18 2010-08-04 Manroland AG Device for holding a printing plate in the vicinity of a printing device
DE202008015082U1 (en) 2008-11-13 2009-01-15 Manroland Ag Device for changing and receiving printing forms on rotary printing machines
DE102008043725A1 (en) 2008-11-13 2010-06-02 Manroland Ag Device for exchanging and for receiving printing plates at rotary printing presses, comprises manipulator arm with holding element for holding printing plate
EP2415604A1 (en) * 2010-08-06 2012-02-08 Koenig & Bauer Aktiengesellschaft Device for removing a printing plate from a form cylinder of a printing unit
EP2415603A1 (en) * 2010-08-06 2012-02-08 Koenig & Bauer Aktiengesellschaft Supply device for supplying a printing plate comprising a bent hook-in leg at least at its end running in the direction of production to a form cylinder of a printing unit
DE102010042117A1 (en) * 2010-10-07 2012-04-12 Koenig & Bauer Aktiengesellschaft Printing plate changing system of printing system, has transfer unit that applies printing plate on attachment element after absorption by transfer unit and prior to winding on cylinder
WO2012045495A1 (en) 2010-10-07 2012-04-12 Koenig & Bauer Aktiengesellschaft Printing-forme changing system of a press unit, logistics system in a printing works and method for applying one or more printing formes to a forme cylinder of a press unit
DE102010042117B4 (en) * 2010-10-07 2015-05-28 Koenig & Bauer Aktiengesellschaft Printing plate changing system of a printing unit and method for applying one or more printing plates on a forme cylinder of the printing unit
WO2016046764A1 (en) * 2014-09-24 2016-03-31 Bobst Firenze S.R.L. An apparatus and method for changing a blade of a rotary die cutter, particularly for flexographic printing machines
US10214005B2 (en) 2014-09-24 2019-02-26 Bobst Firenze S.R.L. Apparatus and method for changing a blade of a rotary die cutter, particularly for flexographic printing machines
DE102021109488A1 (en) 2021-04-15 2022-10-20 Koenig & Bauer Ag Device for supplying printing plates and method for carrying out a plate change

Also Published As

Publication number Publication date
JP3810453B2 (en) 2006-08-16
JPH07290688A (en) 1995-11-07
FR2718675B1 (en) 1996-07-12
US5526747A (en) 1996-06-18
CA2144195A1 (en) 1995-10-19
FR2718675A1 (en) 1995-10-20
ATE166031T1 (en) 1998-05-15
EP0678383B1 (en) 1998-05-13
DE59502147D1 (en) 1998-06-18

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