EP0570702B2 - Device for feeding printing plates to the plate cylinder of a printing machine, in particular offset sheet-fed printing machine - Google Patents

Device for feeding printing plates to the plate cylinder of a printing machine, in particular offset sheet-fed printing machine Download PDF

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Publication number
EP0570702B2
EP0570702B2 EP93106206A EP93106206A EP0570702B2 EP 0570702 B2 EP0570702 B2 EP 0570702B2 EP 93106206 A EP93106206 A EP 93106206A EP 93106206 A EP93106206 A EP 93106206A EP 0570702 B2 EP0570702 B2 EP 0570702B2
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EP
European Patent Office
Prior art keywords
printing
plate cylinder
plate
rail
guiding
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EP93106206A
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German (de)
French (fr)
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EP0570702B1 (en
EP0570702A1 (en
Inventor
Georg Hartung
Helmut Schild
Berthold Seib
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Manroland Sheetfed GmbH
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Manroland Druckmaschinen AG
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Priority to DE4215969A priority Critical patent/DE4215969C2/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/12Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206Feeding to or removing from the forme cylinder

Description

Die Erfindung betrifft eine Vorrichtung zum Zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen.The invention relates to a device for feeding from printing plates to the plate cylinders of printing machines.

Bei Bogenoffsetdruckmaschinen wird eine Druckplatte auf dem Plattenzylinder mittels in einem Zylinderkanal angeordneter und jeweils dem Druckanfang und dem Druckende zugeordneter Spannschienen befestigt, wobei zunächst der Druckanfangbereich der Druckplatte in den Erfassungsbereich einer entsprechend ausgebildeten Spannschiene eingelegt (geklemmt) und sodann das Druckende in der entsprechend zweiten Spannschiene ebenfalls geklemmt und sodann unter Kraftaufwendung gespannt wird. Gerade bei großformatigen Druckplatten gestaltet sich das Einführen des Druckanfangbereiches der Druckplatte in die entsprechende Druckanfang-Spannschiene sehr mühsam und zeitaufwendig, da die entsprechende Kante der Druckplatte über die gesamte Breite in einen zum Teil sehr-engen Schlitz des Erfassungsbereiches eingeführt werden muß. Eine Helligkeit der Druckanfang-Kante der Druckplatte verschlimmert diesen Umstand noch. Auch während des Aufziehvorgangs der Druckplatte, also beim langsamen Vorwärtslauf des Plattenzylinders sowie beim Abziehen einer alten Druckplatte (Rückwärtslauf des Plattenzylinders) muß die Druckplatte gehalten bzw. unterstützt werden, um nicht mit ihrer druckenden Seite an irgendwelchen Maschinenteilen aufzuliegen und unter Umständen beschädigt zu werden.In sheetfed offset printing machines, a printing plate is used on the plate cylinder by means of a cylinder channel arranged and each the beginning of printing and attached to the printing end associated clamping rails, first of all the printing start area of the printing plate in the detection area of a suitably trained Clamping rail inserted (clamped) and then the print end in the corresponding second clamping rail also clamped and then with force is excited. Especially with large format Printing plates are designed to introduce the printing start area the pressure plate into the corresponding one Pressure start clamping rail very tedious and time consuming, because the corresponding edge of the pressure plate across the entire width in a sometimes very narrow Slot of the detection area are introduced got to. A brightness of the printing start edge of the printing plate aggravates this fact. Even during the mounting process of the pressure plate, i.e. when slow forward running of the plate cylinder as well when removing an old pressure plate (reverse run of the plate cylinder) the pressure plate must be held or not be supported with their printing side to lie on any machine parts and may get damaged.

Aus der DE 3 940 795 C2, der DE 3 940 796 C2 sowie der EP 0 431 575 A2 sind Systeme zum automatischen Druckplattenwechsel bekannt, bei welchen das Abziehen einer alten Druckplatte sowie das Zuführen einer neuen Druckplatte von bzw. zum Plattenzylinder selbsttätig abläuft. Diese Systeme weisen neben Speicher- und Aufnahmebereichen für die Druckplatten auch Transporteinrichtungen zum Zu- bzw. Abfördern der Druckplatten auf. Diese Systeme sind aber im bautechnischen Aufwand sehr umfangreich und gestalten sich deswegen sehr kostenintensiv.From DE 3 940 795 C2, DE 3 940 796 C2 and EP 0 431 575 A2 are systems for automatic Known printing plate changes, in which the Pull off an old printing plate and feed it a new printing plate from or to the plate cylinder runs automatically. In addition to storage and receiving areas for the printing plates too Transport devices for feeding in and out Printing plates on. However, these systems are in the construction Effort very extensive and designed therefore very expensive.

Aus "Der Polygraph" 2/92, Seite 6, sowie der JP-A 63-191636 sind halbautomatische Druckplattenwechselsysteme bekannt, bei denen der Plattenzylinder Einrichtungen aufweist, um den Druckanfang und das Druckende der Druckplatte zu klemmen und sodann zu spannen. Ferner sind Vorrichtungen vorgesehen, durch welche die Druckplatte mit einem reduzierten Handhabungsaufwand auf dem Plattenzylinder aufgezogen werden kann. Die aus der zuletzt genannten Schrift bekannte Vorrichtung sieht hier insbesondere eine verschwenkbar gelagerte und an den Außenumfang des Plattenzylinders anstellbare Andrückrolle vor, durch welche insbesondere das Druckende der Druckplatte in eine entsprechend gestaltete Druckende-Spannschiene eingeführt wird. Eine Einrichtung zur wesentlichen Vereinfachung des Vorganges beim Einführen der Vorderkante der Druckplatte in die entsprechende Spannschiene ist jedoch nicht erkennbar. Ein halbautomatisches Druckplattenwechselsystem, bei der eine neue Druckplatte aus einer am hochschwenkbaren Schutz vor den Druckwerkszylindern befindlichen Position dem Plattenzylinder zugeführt wird ist ebenfalls aus der JP-A 59-22755 bekannt.From "Der Polygraph" 2/92, page 6, and JP-A 63-191636 are semi-automatic plate changing systems known in which the plate cylinder facilities has to start printing and that To clamp the printing end of the printing plate and then to tighten. Devices are also provided by which the printing plate with a reduced handling effort be mounted on the plate cylinder can. The one from the latter font known device sees here in particular a pivotable stored and on the outer circumference of the Plate cylinder adjustable pressure roller through which especially the printing end of the printing plate in one appropriately designed pressure end clamping rail introduced becomes. A facility for significant simplification the process of inserting the leading edge the pressure plate in the corresponding clamping rail however not recognizable. A semi-automatic plate changing system, with a new printing plate from a swiveling protection in front of the printing unit cylinders position the plate cylinder is also supplied from JP-A 59-22755 known.

Aufgabe der vorliegenden Erfindung ist es somit, eine Vorrichtung zum zuführen von Druckplatten auf den Plattenzylinder von Druckmaschinen derartig zu erweitern, so daß bei geringstem bautechnischen Aufwand gerade das Einführen der Druckplattenvorderkante in die entsprechende Druckanfang-Spannschiene vereinfacht werden kann.The object of the present invention is therefore a device for feeding printing plates on the plate cylinder of printing machines such to expand so that at the least structural Just inserting the leading edge of the printing plate into the corresponding pressure start clamping rail can be simplified.

Gelöst wird diese Aufgabe durch eine vorrichtung mit den Merkmalen von Anspruch 1. Bevorzugte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen.This task is solved by a device with the Features of claim 1. Preferred embodiments of the invention result from the subclaims.

Nach der Erfindung ist vorgesehen, daß dem Plattenzylinder der Druckmaschine eine an dessen Außenumfang an- und abstellbar gelagerte, über die Formatbreite des Plattenzylinders sich erstreckende Einführschiene zugeordnet ist. Der Plattenzylinder wird dabei in eine Stellung verfahren, bei welcher die erfindungsgemäße Einführschiene an den Bereich der Abkantung des Druckanfanges des Plattenzylinders anstellbar ist und somit mit einer über ihre gesamte Länge reichenden Fläche und mit dem entsprechenden Außenumfang des Plattenzylinders einen trichterförmigen Bereich bildet, der genau in den Erfassungsbereich der geöffneten Druckanfang-Spannschiene des Plattenzylinders mündet. Die neu zuzuführende Druckplatte braucht somit lediglich in diesen Einführbereich eingeschoben werden und wird quasi selbsttätig durch die Fläche der Einführschiene einerseits sowie den Außenumfang des Plattenzylinders andererseits in die geöffnete Druckanfang-Spannschiene eingeführt. Die Druckanfang-Spannschiene kann dann durch entsprechende, beispielsweise in der Zylindergrube befindliche Motore betätigt, d.h. der Erfassungsbereich zum Klemmen geschlossen werden.According to the invention it is provided that the plate cylinder the printing machine one on its outer circumference mounted on and off, on the Format width of the plate cylinder extending Entry rail is assigned. The plate cylinder will thereby move into a position in which the inventive Insertion rail to the area of the Bending of the start of printing of the plate cylinder is employable and thus with one over its entire Length-reaching area and with the corresponding Outer circumference of the plate cylinder a funnel-shaped Area that forms exactly in the detection area the open pressure start clamping rail of the plate cylinder flows. The new pressure plate to be fed thus only needs to be inserted into this insertion area through the surface the insertion rail on the one hand and the Outer circumference of the plate cylinder on the other hand in the open pressure start clamping rail inserted. The Pressure start clamping rail can then be for example in the cylinder pit Motors actuated, i.e. the detection area for clamping getting closed.

Nach der Erfindung kann insbesondere vorgesehen sein, daß die Einführschiene schwenkbar um eine Achse angeordnet ist, die sich am Schutz vor den Druckwerkszylindern und insbesondere in Höhe des Plattenzylinders dieses Druckwerkes befindet. Die Einführschiene ist dabei in vorteilhafter Weise als das untere, schwenkbare Ende eines in etwa bogenförmig profilierten und ebenfalls über die Formatbreite des Plattenzylinders reichenden Blechprofiles gebildet, dessen Schwenkachse sich an dem Schutz vor dem Druckwerkszylinder befindet. An der konkaven Seite des Blechprofils können zur schonenden Führung der Druckplatte Bürsten angeordnet seien, durch welche die Druckplatte sich mit ihrer druckenden Seite an dem Blechprofil abstützt.According to the invention can be provided in particular be that the insertion rail is pivotable about an axis is arranged, the protection against the printing unit cylinders and especially at the level of the plate cylinder of this printing unit. The insertion rail is advantageously than the lower, pivotable End of an approximately arched and also over the format width of the plate cylinder Sheet metal profile formed, the pivot axis is located on the protection in front of the printing unit cylinder. On the concave side of the sheet profile you can gentle guidance of the pressure plate brushes arranged through which the printing plate with its printing side supported on the sheet profile.

Das An- und Abschwenken der Einführschiene bzw. des Blechprofils kann beispielsweise durch zwei Pneumatikzylinder bewirkt werden, die sich vorzugsweise an je einer Seitengestellwand der Druckmaschine befinden und deren Kolbenstangen über beispielsweise gestellfest gelagerte Hebel arme zum Verschwenken auf das Blechprofil einwirken. Swiveling the insertion rail in and out the sheet metal profile can, for example, by two pneumatic cylinders are brought about, which preferentially to one side frame wall of the printing machine and their piston rods, for example, fixed to the frame mounted lever arms for pivoting on the Act on the sheet profile.

Desweiteren erfolgt die Erläuterung eines Ausführungsbeispieles der Erfindung anhand der Zeichnungen.Furthermore, an exemplary embodiment is explained the invention with reference to the drawings.

Es zeigt:

Fig. 1
die erfindungsgemäße Vorrichtung im Schnitt an einem Druckwerk,
Fig. 2
eine Darstellung der erfindungsgemäßen Einführschiene nebst Blechprofil über die Formatbreite.
It shows:
Fig. 1
the device according to the invention in section on a printing unit,
Fig. 2
a representation of the insertion rail according to the invention along with the sheet profile over the format width.

Fig. 1 zeigt als Ausschnitt den Teil eines Druckwerkes einer Druckmaschine in Reihenbauweise. Zwischen den zwei Seitengestellwänden dieses Druckwerkes ist ein Plattenzylinder 1 gelagert, der in einer Zylindergrube 2 eine dem Druckanfang DA und dem Druckende DE zugeordnete Spannschiene 3, 4 aufweist. Oberhalb des Plattenzylinders 1 befinden sich die Walzen eines Farbwerkes, von dem in Fig. 1 zwei Farbauftragswalzen angedeutet sind. Vor einem Druckplattenwechsel werden diese bekanntlich abgestellt.Fig. 1 shows a section of the part of a printing unit a printing machine in series construction. Between the two side frame walls of this printing unit a plate cylinder 1 stored in a cylinder pit 2 a the print start DA and the print end DE assigned clamping rail 3, 4. Above the Plate cylinder 1 are the rollers of an inking unit, of which two inking rollers in FIG. 1 are indicated. Before changing the printing plate as is well known.

Vor dem Druckwerk mit dem Plattenzylinder 1 und dem darunter angeordneten Gummituchzylinder 5 ist über je eine an einer Seitengestellwand des Druckwerkes angebrachte Führungsschiene ein Schutz 6 verschiebbar angeordnet, der sich gemäß Fig. 1 in einer Grundstellung während des Druckbetriebes befindet. Zur Zugänglichkeit zu den Druckwerkszylindern, insbesondere um das Gummituch zu wechseln, kann dieser, wie durch den Pfeil angedeutet, hochgeschoben werden. Der Schutz 6 erstreckt sich über die Breite des Druckwerkes.In front of the printing unit with the plate cylinder 1 and the blanket cylinder 5 arranged below it one each on a side frame wall of the printing unit attached guide rail a protection 6 slidable arranged, which is shown in FIG. 1 in a Home position is during printing. For accessibility to the printing unit cylinders, in particular to change the rubber blanket, as indicated by the arrow. The protection 6 extends across the width of the Printing unit.

An einem oberen Teil des Schutzes 6 ist als Drehgelenk vorzugsweise eine Schwenkachse 7 angebracht, an der ein Blechprofil 8 aufgehängt ist. Das Blechprofil 8 weist dabei eine leichte Krümmung auf und besitzt die Formatbreite des Plattenzylinders 1. An dem schwenkbaren Ende des Blechprofiles 8 ist eine Einführschiene 9 angebracht, die durch Verschwenken des Blechprofiles 8 an den Außenumfang des Plattenzylinders 1 anbzw. von diesem abschwenkbar ist (Pfeil). In der dargestellten Ausführungsform gemäß Fig. 1 ist die Einführschiene 9 durch eine entsprechende Profilierung des schwenkbaren Endes des Blechprofiles 8 entstanden.On an upper part of the protection 6 is a swivel joint preferably a pivot axis 7 is attached, on which a sheet profile 8 is suspended. The sheet profile 8 has a slight curvature and has the Format width of the plate cylinder 1. On the swiveling End of the sheet profile 8 is an insertion rail 9 attached by pivoting the sheet profile 8 on the outer circumference of the plate cylinder 1 respectively. can be swung away from it (arrow). In the illustrated The embodiment according to FIG. 1 is the insertion rail 9 by appropriate profiling of the pivotable end of the sheet profile 8 were created.

An der oberen Traverse 10 des Schutzes 6 ist ein Führungsblech 11 angebracht, welches fast bis zur Oberkante des Blechprofiles 8, also in etwa bis zur Höhe der Schwenkachse 7 heruntergezogen ist. Gegenüberliegend dem Führungsblech 11 ist ebenfalls am Schutz 6 ein Führungsblech 12 angebracht, welches zwei abgebogene Schenkel aufweist. Die Führungsbleche 11 und 12 erstrecken sich dabei über die Breite des Schutzes 6 bzw. über die Formatbreite des Plattenzylinders 1 und bilden einen Spalt zum Durchführen einer Druckplatte. Hier kann auch ein entsprechend dem Format der Druckplatte verschiebbar gelagerter Seitenanschlag vorgesehen sein.On the upper cross member 10 of the protection 6 is a Guide plate 11 attached, which almost to Upper edge of the sheet profile 8, that is, approximately up to the height the pivot axis 7 is pulled down. Opposite the guide plate 11 is also on protection 6 attached a guide plate 12, which two bent Has thighs. The guide plates 11 and 12 extend across the width of the protection 6 or over the format width of the plate cylinder 1 and form a gap for performing a printing plate. Here you can also choose one according to the format of the printing plate slidably mounted side stop provided his.

Fig. 2 zeigt das Blechprofil 8 mit der daran befindlichen Einführschiene 9 in Formatbreite. Auf der konkaven Innenseite des gekrümmten Blechprofiles 8 sind in mehreren Streifen voneinander beabstandet Bürsten 13 angeordnet, über deren Borsten sich die Druckplatte mit ihrer druckenden Seite abstützen kann. Am Führungsblech 11 der Traverse 10 sind ebenfalls zur schonenden Abstützung der Druckplatte Bürsten 14 angebracht. Anstelle der vorzugsweise verwendeten Bürsten 13, 14 können zur kratz- und verschleißfreien Abstützung der Druckplatte auch andere Einrichtungen vorgesehen sein.Fig. 2 shows the sheet profile 8 with the one located thereon Guide rail 9 in format width. On the concave Inside of the curved sheet profile 8 are in several Strips spaced apart brushes 13 arranged over the bristles with the pressure plate can support their printing side. On the guide plate 11 of the traverse 10 are also to be protected Support of the pressure plate brushes 14 attached. Instead of the brushes 13, 14 that are preferably used can be used to support the Pressure plate also provided other facilities his.

Die Einführschiene 9 am schwenkbaren Ende des Blechprofiles 8 weist das in Fig. 1 dargestellte Profil auf und besitzt eine zum Plattenzylinder 1 weisende Einführfläche 15 auf, die etwa in der Höhe der Borsten der Bürsten 13 liegt.The insertion rail 9 at the pivotable end of the Sheet profile 8 has the profile shown in Fig. 1 and has an insertion surface facing the plate cylinder 1 15 on that is roughly at the level of the bristles of the brushes 13 lies.

Zum Einführen einer neuen Druckplatte wird somit das Blechprofil 8, wie in Fig. 1 gezeigt, an den Plattenzylinder 1 angeschwenkt, wozu dieser vorher in die entsprechende Position verdreht wird. Die Einführschiene 9 weist in ihrer beidseitigen Verlängerung (Fig. 2) je einen Anschlag 16 auf, mit denen sie sich an beiden Schmitz-bzw. Meßringen des Plattenzylinders 1 abstützt. Die Anschläge 16 sind dabei zur Beabstandung der Einführschiene 9 gegenüber dem Druckanfang DA des Plattenzylinders 1 derartig ausgebildet, so daß die Einführfläche 15 auf einer Höhe mit dem geöffneten Erfassungsbereich 17 der Spannschiene 3 liegt. Die Anschläge 16 weisen zur schonenden Auflage an den Schmitzringen beispielsweise Polyamid-Klötzchen auf und können ebenfalls einstellbar sein.Thus, to insert a new pressure plate the sheet profile 8, as shown in Fig. 1, on the plate cylinder 1 pivoted, for which purpose this previously in the corresponding Position is rotated. The insertion rail 9 has in their extension on both sides (Fig. 2) each Stop 16 on, with which they are on both Schmitz or. Measuring rings of the plate cylinder 1 supports. The Stops 16 are used to space the insertion rail 9 compared to the start of printing DA of the plate cylinder 1 designed so that the Insertion surface 15 at the same level as the open one Detection area 17 of the tensioning rail 3 lies. The Stops 16 point to the gentle support on the Bearings, for example, on polyamide blocks and can also be adjustable.

Eine neu zuzuführende Druckplatte kann an der Oberseite des Schutzes 6 zwischen dem Führungsblech 11 und dem gegenüberliegenden Führungsblech 12 hindurch und sich über die Bürsten 13 am Blechprofil 8 abstützend direkt in die Spannschiene 3 eingeführt werden. Wie in Fig. 1 erkennbar stellen die Einführfläche 15 der Einführschiene 9 einerseits und der Außenumfang des Plattenzylinders 1 im Bereich des Druckanfanges DA andererseits einen über die Formatbreite des Plattenzylinders 1 reichenden Trichter dar, der bewirkt, daß die Vorderkante der Druckplatte direkt in den spaltförmigen Erfassungsbereich 17 eingeführt werden kann.A new pressure plate can be fed to the Top of the protection 6 between the guide plate 11 and the opposite guide plate 12 therethrough and the brushes 13 on the sheet metal profile 8 are inserted directly into the tensioning rail 3. As can be seen in FIG. 1, the insertion surface 15 the insertion rail 9 on the one hand and the outer circumference of the plate cylinder 1 in the area of the start of printing DA on the other hand, one across the format width of the plate cylinder 1 reaching funnel that causes the front edge of the printing plate directly into the gap-shaped Detection area 17 can be introduced.

Nachdem die Druckplatte in die vordere Spannschiene 3 eingeführt wurde und diese durch Schließen des Erfassungsbereiches 17 den Druckanfang der Druckplatte geklemmt hat, kann das Blechprofil 8 mit der Einführschiene 9 wieder abgeschwenkt werden. Der Plattenzylinder 1 wird nun über entsprechende Ansteuerung des Hauptantriebs der Druckmaschine in eine langsame Vorwärtsdrehung versetzt, wobei sich die Druckplatte um den Außenumfang des Plattenzylinders 1 aufzieht. In Fig. 1 ist eine Andrückrolle 18 an den Plattenzylinder 1 an- und abstellbar gelagert vorgesehen, durch welche die Druckplatte beim Aufziehvorgang an den Außenumfang des Plattenzylinders angedrückt wird. Die Andrückrolle 18 erstreckt sich über die gesamte Formatbreite und ist beispielsweise über zwei Lagerhebel (je einer an einer Seitengestellwand der Druckmaschine) und über je einen Pneumatikzylinder an- und abstellbar. Wie aus dem Stand der Technik bekannt, vermag eine derartige Andrückrolle 18 auch das nachlaufende Ende der Druckplatte in eine entsprechend gestaltete Spannschiene 4 des Druckendes einzuführen. Diese wird sodann über fernbetätigbare Einrichtungen im Plattenzylinder geschlossen.After the pressure plate in the front clamping rail 3 was introduced and this by closing of the detection area 17 the start of printing Has clamped the pressure plate, the sheet profile 8 with the Insertion rail 9 can be pivoted away again. The Plate cylinder 1 is now controlled accordingly the main drive of the printing press in a slow Forward rotation offset, with the Pressure plate around the outer circumference of the plate cylinder 1 is raising. In Fig. 1 is a pressure roller 18 on the plate cylinder 1 provided on and off, through which the pressure plate during the mounting process pressed the outer circumference of the plate cylinder becomes. The pressure roller 18 extends over the entire Format width and is for example via two bearing levers (one on each side frame wall of the press) and on and over a pneumatic cylinder parkable. As is known from the prior art, can such a pressure roller 18 also the trailing End of the pressure plate in a corresponding to introduce designed clamping rail 4 of the printing end. This is then via remote-controlled devices closed in the plate cylinder.

Zum An- und Abschwenken des Blechprofils 8 mit der Einführschiene 9 sind beispielsweise an beiden Seitengestellwänden der Druckmaschine je ein Pneumatikzylinder 19 angebracht, der über je einen gestellfest gelagerten Winkelhebel 20 und je einen daran angebrachten Mitnehmerzapfen (nicht dargestellt) das entsprechende Verschwenken des Blechprofiles 8 bewirkt. Selbstverständlich können die Pneumatikzylinder 19 auch direkt im Schutz 6 angebracht und direkt am Blechprofil 8 angelenkt sein.For swiveling the sheet profile 8 in and out with the insertion rail 9 are, for example, on both side frame walls one pneumatic cylinder for each press 19 attached, each with a frame mounted angle lever 20 and one attached to each Driver pin (not shown) the corresponding Swiveling the sheet profile 8 causes. Of course, the pneumatic cylinders 19 also installed directly in the protection 6 and directly on the sheet profile 8 be articulated.

Die erfindungsgemäße Vorrichtung eignet sich nicht nur zum Zuführen einer neuen Druckplatte zum Plattenzylinder 1 sondern ebenfalls zum Abführen einer auf dem Plattenzylinder 1 befindlichen Druckplatte. Da das Blechprofil 8 mit der Einführschiene 9 in der Ruhestellung, d.h. im nicht angeschwenkten Zustand die in Fig. 1 gestrichelt angedeutete Lage einnimmt (beispielsweise durch Anschlag), kann eine Druckplatte bei Rückwärtsdrehung des Plattenzylinders 1, geöffneter Spannschiene 4 sowie angestellter Andrückrolle 18 sich über die Bürsten 13 des Blechprofils 8 abstützend zwischen den Führungsblechen 11 und 12 am Schutz 6 herausgefördert werden.The device according to the invention is not suitable only for feeding a new printing plate to the plate cylinder 1 but also for draining one the plate cylinder 1 located printing plate. Since that Sheet profile 8 with the insertion rail 9 in the rest position, i.e. in the non-pivoted state the in Fig. 1 position indicated by dashed lines (for example by a stop), a pressure plate can turn when reversed of the plate cylinder 1, open Tensioning rail 4 and pressure roller 18 itself over the brushes 13 of the sheet metal profile 8 between the guide plates 11 and 12 conveyed out on the protection 6 become.

BezugszeichenlisteReference list

11
PlattenzylinderPlate cylinder
22nd
ZylindergrubeCylinder pit
33rd
Spannschiene (Druckanfang)Tensioning rail (start of printing)
44th
Spannschiene (Druckende)Tensioning rail (printing end)
55
GummituchzylinderBlanket cylinder
66
Schutzprotection
77
SchwenkachseSwivel axis
88th
BlechprofilSheet profile
99
EinführschieneInsertion rail
1010th
Traversetraverse
1111
FührungsblechGuide plate
1212th
FührungsblechGuide plate
1313
Bürstento brush
1414
Bürstento brush
1515
EinführflächeInsertion surface
1616
Anschlagattack
1717th
ErfassungsbereichDetection area
1818th
AndrückrollePressure roller
1919th
PneumatikzylinderPneumatic cylinder
2020th
WinkelhebelAngle lever
DATHERE
DruckanfangStart of printing
DEDE
DruckendeEnd of printing

Claims (6)

  1. Device for feeding printing plates to the plate cylinder of printing presses, particularly offset sheet printing presses, in which the plate cylinder (1) has in a cylinder channel (2) a tensioning rail (3) arranged for the print start (DA), which for receiving the front edge of the printing plate has a grasping region (17) which can be opened in the form of a slot extending across the format width, which in substantially tangential direction debouches at the exterior periphery of the plate cylinder (1) and a running-in surface (15) for a new printing plate which is laid against the plate cylinder (1) and can be set against this is provided, wherein the guiding-in surface (15) is constructed as a guiding-in rail (9) extending across the format width of the plate cylinder (1), which can be set against the exterior periphery of the plate cylinder (1) in the region of the print start (DA) so that via the guiding-in surface (15) of the guiding rail (9) directed towards the plate cylinder (1) the front edge of a printing plate can be introduced into the opened grasping region (17) of the tensioning rail (3), wherein the guiding-in rail (9) is attached at the swivellable end of a profiled metal sheet (8) extending over the format width of the plate cylinder (11), which is suspended with one side about a swivel axis running parallel to the axis of the plate cylinder (1), and wherein the shaped metal sheet (8) has a curvature in the direction transverse to the format width and is suspended on the swivel axis (7) with the concave side of this curvature is directed to the plate cylinder (1).
  2. Device according to Claim 1, characterised in that the swivel axis (7) is attached to a protective cover (6) arranged in front of the printing unit cylinders, which is displaceable particularly via means of a linear guide installed in each case on one side frame wall of the printing unit.
  3. Device according to Claim 1 or 2, characterised in that the guiding-in surface (15) of the guiding-in rail (9) is constructed as a shaped region of the swivellable end of the shaped metal sheet (8).
  4. Device according to one of the preceding Claims, characterised in that on the side of the shaped metal sheet (8) directed towards the plate cylinder (1) brushes (13) are attached via which the printing plate to be fed in can be supported on its printing side.
  5. Device according to one of the preceding Claims, characterised in that on both ends of the guiding-in rail (9) stops (16) are attached via which the guiding-in rail (9) is supportable on the bearer rings of the plate cylinder (1).
  6. Device according to one of the preceding Claims, characterised in that the guiding-in rail (9) can be set against the plate cylinder (1) in each case via a pneumatic cylinder (19) attached to a side wall of the printing press.
EP93106206A 1992-05-18 1993-04-16 Device for feeding printing plates to the plate cylinder of a printing machine, in particular offset sheet-fed printing machine Expired - Lifetime EP0570702B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4215969A DE4215969C2 (en) 1992-05-18 1992-05-18 Device for feeding printing plates onto the plate cylinders of printing machines, in particular sheet-fed offset printing machines
DE4215969 1992-05-18

Publications (3)

Publication Number Publication Date
EP0570702A1 EP0570702A1 (en) 1993-11-24
EP0570702B1 EP0570702B1 (en) 1996-03-13
EP0570702B2 true EP0570702B2 (en) 2001-12-19

Family

ID=6458887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93106206A Expired - Lifetime EP0570702B2 (en) 1992-05-18 1993-04-16 Device for feeding printing plates to the plate cylinder of a printing machine, in particular offset sheet-fed printing machine

Country Status (6)

Country Link
US (1) US5331892A (en)
EP (1) EP0570702B2 (en)
JP (1) JP2941598B2 (en)
AT (1) AT135298T (en)
DE (2) DE4215969C2 (en)
ES (1) ES2086150T5 (en)

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DE102010008658A1 (en) 2009-03-13 2010-09-16 Heidelberger Druckmaschinen Ag Method and device for feeding printing plates

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DE4309658C1 (en) * 1993-03-25 1994-10-27 Roland Man Druckmasch Device for automatically changing printing plates in sheet-fed offset printing machines with several printing units
DE4322027A1 (en) * 1993-07-02 1995-01-19 Zirkon Druckmaschinen Gmbh Device for automatically changing a printing plate
DE4338664C2 (en) * 1993-11-12 1995-09-14 Roland Man Druckmasch Method and device for controlling an automated printing plate changing process in printing machines
DE4339344C1 (en) * 1993-11-18 1995-03-30 Roland Man Druckmasch Device for the automated exchange of printing plates in a printing machine
JP2760901B2 (en) * 1994-01-17 1998-06-04 ケーニツヒ ウント バウエル−アルバート アクチエンゲゼルシヤフト Device for attaching, detaching and transporting easily deflectable sheet-like objects with hook edges
EP0740608B1 (en) * 1994-01-17 1998-04-01 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Device for mounting, dismounting and transporting curved objects that are easy to bend and have hanging up edges
DE4404558C2 (en) * 1994-02-12 1996-02-01 Roland Man Druckmasch Device for automatically changing printing plates
FR2718675B1 (en) 1994-04-18 1996-07-12 Heidelberg Harris Sa Device for exchanging pictures of rotary printing machines.
DE9415751U1 (en) * 1994-09-29 1994-11-17 Roland Man Druckmasch Device for feeding a printing plate to the plate cylinder of a printing machine
DE4442574C2 (en) * 1994-11-30 1996-11-28 Koenig & Bauer Albert Ag Method and device for providing a printing plate
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DE19508846C2 (en) * 1995-03-11 2002-10-31 Koenig & Bauer Ag Device for inserting a leading edge of a printing plate
DE19511075A1 (en) * 1995-03-25 1996-09-26 Roland Man Druckmasch Method and device for mounting flexible printing forms
FR2732268B1 (en) * 1995-03-31 1997-06-20 Heidelberg Harris Sa Device for exchanging printing plates
US6113346A (en) 1996-07-31 2000-09-05 Agfa Corporation Method for loading and unloading a supply of plates in an automated plate handler
EP0862999B1 (en) * 1997-03-04 2002-02-06 MAN Roland Druckmaschinen AG Web printing press for a fast production change
DE19803727A1 (en) * 1998-01-30 1999-08-05 Heidelberger Druckmasch Ag Method and device for automatically feeding and / or removing printing plates to / from the plate cylinder of a printing press
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EP1459892B1 (en) 2001-11-28 2006-01-18 Koenig & Bauer Aktiengesellschaft Device for mounting a covering fed to a cylinder of a printing machine
DE10158158A1 (en) * 2001-11-28 2003-06-18 Koenig & Bauer Ag Device for winding an elevator
US6900826B2 (en) * 2002-02-19 2005-05-31 Presstek, Inc. Multiple resolution helical imaging system and method
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US6941863B2 (en) 2003-11-21 2005-09-13 Shinohara Machinery Co., Ltd. Plate transfer apparatus
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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

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Also Published As

Publication number Publication date
ES2086150T3 (en) 1996-06-16
EP0570702A1 (en) 1993-11-24
US5331892A (en) 1994-07-26
JP2941598B2 (en) 1999-08-25
ES2086150T5 (en) 2002-05-01
DE4215969A1 (en) 1993-12-02
EP0570702B1 (en) 1996-03-13
AT135298T (en) 1996-03-15
JPH0631901A (en) 1994-02-08
DE4215969C2 (en) 1994-10-13
DE59301844D1 (en) 1996-04-18

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