EP0306682A2 - Device for conveying sheets through the printing zone between the offset cylinder and the impression cylinder in a rotary sheet-fed printing press - Google Patents

Device for conveying sheets through the printing zone between the offset cylinder and the impression cylinder in a rotary sheet-fed printing press Download PDF

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Publication number
EP0306682A2
EP0306682A2 EP88112088A EP88112088A EP0306682A2 EP 0306682 A2 EP0306682 A2 EP 0306682A2 EP 88112088 A EP88112088 A EP 88112088A EP 88112088 A EP88112088 A EP 88112088A EP 0306682 A2 EP0306682 A2 EP 0306682A2
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EP
European Patent Office
Prior art keywords
sheet
cylinder
printing
cover
impression cylinder
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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
EP88112088A
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German (de)
French (fr)
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EP0306682A3 (en
EP0306682B1 (en
Inventor
Claus Dipl.-Ing. Simeth
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Manroland AG
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MAN Roland Druckmaschinen AG
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Priority to AT88112088T priority Critical patent/ATE83193T1/en
Publication of EP0306682A2 publication Critical patent/EP0306682A2/en
Publication of EP0306682A3 publication Critical patent/EP0306682A3/en
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Publication of EP0306682B1 publication Critical patent/EP0306682B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/005—Electrostatic holding down devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers

Definitions

  • the invention relates to a device for conveying sheets through the printing zone of the blanket cylinder and impression cylinder of a sheet-fed rotary printing press according to the preamble of the first claim.
  • a device for conveying sheets through the printing zone of cylinders, in particular blanket cylinders of a sheet-fed printing press in which a gripper system is pivotally mounted about a rotational axis on the printing cylinder by predeterminable spring force, and the gripper system on the cylinder against a contact surface can be locked and unlocked again after passing through the pressure zone, so that the tension that can be exerted on the sheet by the gripper system can be regulated by the spring force.
  • the disadvantage of this device is that the arch tension can only be maintained by the spring force in the area of the printing cylinder at most until the following gripper transfer. After the handover to the gripper systems of the sheet take-up drum taking over the sheet or the like, this spring action no longer exists, although longer sheets are still in the printing zone.
  • blow molding which in the gusset-shaped space between the rubber and impression cylinders is arranged on the side of the outgoing printed sheet in the region of the tear-off angle and blows compressed air between the rubber cylinder and the sheet.
  • this blowing device does not interact with a resilient cover on the pressure cylinder.
  • a flexible film covering is already known from DE-PS 3 542 649.
  • This covering interacts with a roller shutter that can be wound up at the beginning of the print inside a printing cylinder on a winding device for setting to different sheet formats, so that the sheet end protruding little beyond the end of the elevator can be gripped unhindered by mechanical grippers arranged on the downstream reversing drum on the printing cylinder .
  • This roller shutter-like elevator with film covering is guided relatively firmly towards the end of the print and is not arranged loosely. In addition, it does not interact with a non-positive pressure device.
  • the invention is therefore based on the object of designing a device of the type mentioned so that sudden changes in the sheet tension from the start of printing to the end of printing are avoided by a resilient element acting in the area of the printing cylinder, even after the sheet has been transferred from the gripper systems of the printing cylinder to the gripper systems of the sheet take-up drum will.
  • the advantage of the invention is that both a calm entry of a printed sheet into the printing zone is attainable, whereby wave formation as well as fluttering of the sheet or duplicating and smearing of the sheet is avoided.
  • the uniform detachment of the printed sheet from the blanket cylinder is achieved with a minimal tear-off angle, thereby reducing the risk of tear-strip formation.
  • the printing unit 1 shown in FIG. 1 of a multi-color sheet-fed rotary offset printing machine is constructed in a conventional manner and comprises two plate / blanket cylinder pairs 2, 3 and 4, 5.
  • the sheet 12 is guided by means of gripper systems 11 around the printing cylinder 6 or by means of gripper systems 9 on a transport chain 8 around a sheet take-up drum 10 and thereby conveyed through the printing zones of the double printing unit.
  • the pressure cylinder 6 has pins 17 in a known manner.
  • the pressure cylinder 6 is covered with a resilient cover 7.
  • This resilient cover 7 lies loosely and flatly on the closed surface of the printing cylinder 6 in the area between the start of the print and the end of the print.
  • the resilient cover 7 is either attached to the beginning of the print or suspended in a winding device 15, the winding shaft 16 of which is rotatably mounted in the printing cylinder 6 in bushes 18, 19.
  • the resilient cover 7 can thus be drawn into the inside of the printing cylinder 6 at the start of printing, so that the length of the resilient cover 7 coming into contact with the surface of the printing cylinder 6 can be adjusted depending on the sheet format to be processed, while with a fixed arrangement at the beginning of printing no adjustment to sheet format can be made.
  • the resilient cover 7 coming into contact is advantageously wound up so that there is always a distance a of a few millimeters in the circumferential direction between the end and the end of the sheet 12. It does not matter whether the bow 12 or the resilient cover 7 have the greater length (FIGS. 2 and 3).
  • the surface structure of the material is designed so that it is color-repellent, abrasion-resistant and easy to clean. In addition, it should have a high affinity for the substrate.
  • the winding device 15 can be brought into the required position by hand or, if appropriate, also by means of a motor via corresponding adjusting devices not shown in the drawing.
  • the resilient cover 7 can also be slightly pre-magnetized so that low adhesive forces to the pressure cylinder 6 occur.
  • a toothing, not shown, at the start of pressure of the resilient cover 7 facilitates the insertion and positioning during clamping.
  • the resilient cover 7 interacts with a force-locking sheet pressing device, which is designed as an axially parallel blowing strip 13 and is arranged in the gusset-shaped space above the printed sheet 12 running out of the printing zone in the region of the tear-off angle ⁇ and is used for blowing compressed air between the rubber cylinder 3 and the sheet 12.
  • a force-locking sheet pressing device which is designed as an axially parallel blowing strip 13 and is arranged in the gusset-shaped space above the printed sheet 12 running out of the printing zone in the region of the tear-off angle ⁇ and is used for blowing compressed air between the rubber cylinder 3 and the sheet 12.
  • the preselectable compressed air flow on the blown air strips 13 can be advantageously controlled in time by a valve 20 controlled by a single-speed shaft and control discs which can be rotated relative to one another in such a way that the compressed air is blown in only in the phase between the beginning and end of the pressure.
  • the principle of operation of a non-positive gene sheet pressing device in the form of blowing strips 13 cooperating device is as follows: When leaving the printing zone 1 between the blanket cylinder 3 and the impression cylinder 6, the printed sheet 12 on the blanket cylinder 3 is separated from the resilient cover 7. The bow 12 is excited to oscillate and both damped and tensioned by the relatively freely moving resilient cover 7, because the resilient cover 7 can emerge a little radially from the periphery of the surface of the printing cylinder 6 or can re-enter for force compensation. The same elastic effect is achieved as with a stable or thicker substrate.
  • the tear-off angle ⁇ is moved as close as possible to the first pressure zone by blown air and, moreover, the high force jump of the compressive stress between the blanket cylinder 3 and the pressure cylinder 6, otherwise acting in the pressure zone on the sheet 12, is ⁇ gradually reduced to ⁇ '(see Fig. 3).
  • the compressive stress does not suddenly collapse.
  • the rear edge of the resilient cover 7 can be chamfered, so that the pressure at the pressure drop decreases even more slowly.
  • the resilient cover 7 can also be combined with a blow molding 21, which is arranged in the gusset-shaped space above the incoming sheet 12, which has not yet been printed, between the blanket cylinder 3 and the impression cylinder 6. In this way, a calmed sheet entry can also be achieved in the first printing zone.
  • the frictional connection can also be generated by electrostatic forces between the sheet 12 and the resilient cover 7 (Fig. 4).
  • a positive ion-generating ionizing rod 22 is directed towards the arc 12' for its positive charging.
  • the pressure cylinder 6 is grounded, so that the effect of electrostatic adhesion due to charging against the mass is only half effective.
  • cover 7 is insulated from the printing cylinder 6 and, before the first printing zone between the sheet 12 and the insulated cover 7, a negative ion-generating ionizing rod 23 is also directed onto the insulated cover 7 for its negative charging.
  • a metallized plastic film can be used as an insulating cover 7.

Abstract

To maintain the sheet tension in the area of the impression cylinder, the impression cylinder (6) is fitted with a resilient covering (7) which is securely attached at the commencement of the printing area but which lies loosely on the continuous surface of the impression cylinder (6) at the end of the printing area. The resilient cover (7) is preferably capable of being drawn into the interior of the impression cylinder (6) at the commencement of the printing area and capable of being wound up on a winding device (15) so that the length of the resilient covering (7) lying on the surface of the impression cylinder is adjustable to match the sheet format to be processed. Moreover, blow strips (13, 21) or ionising bars (22, 23) and de-ionising bars (14, 24, 25) are so arranged with respect to the resilient covering (7) and the sheet (12) that frictional pressure or electrostatic adhesion exists between the two parts (7, 12). <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Fördern von Bogen durch die Druckzone von Gummizylinder und Druckzylin­der einer Bogenrotationsdruckmaschine nach dem Oberbegriff des ersten Patentanspruches.The invention relates to a device for conveying sheets through the printing zone of the blanket cylinder and impression cylinder of a sheet-fed rotary printing press according to the preamble of the first claim.

Aus der DE-PS 3 220 364 ist eine Vorrichtung zum Fördern von Bogen durch die Druckzone von Zylindern, insbesondere Gummi­zylindern einer Bogendruckmaschine bekannt, bei der ein Greifersystem durch vorgebbare Federkraft schwenkbar um eine Drehachse am Druckzylinder gelagert ist und das Greifersys­tem am Zylinder gegen eine Anlagefläche verriegelbar und nach Durchlaufen der Druckzone wieder entriegelbar ist, so daß die von dem Greifersystem auf den Bogen ausübbare Zugspannung durch die Federkraft regulierbar ist. Von Nach­teil ist bei dieser Vorrichtung, daß die Bogenspannung durch die Federkraft nur im Bereich des Druckzylinders maximal bis zur folgenden Greiferübergabe aufrecht erhalten werden kann. Nach der Übergabe an Greifersysteme der den Bogen überneh­menden Bogenabnahmetrommel oder dgl. ist diese Federwirkung nicht mehr gegeben, obwohl sich längere Bogen noch immer in der Druckzone befinden.From DE-PS 3 220 364 a device for conveying sheets through the printing zone of cylinders, in particular blanket cylinders of a sheet-fed printing press, is known, in which a gripper system is pivotally mounted about a rotational axis on the printing cylinder by predeterminable spring force, and the gripper system on the cylinder against a contact surface can be locked and unlocked again after passing through the pressure zone, so that the tension that can be exerted on the sheet by the gripper system can be regulated by the spring force. The disadvantage of this device is that the arch tension can only be maintained by the spring force in the area of the printing cylinder at most until the following gripper transfer. After the handover to the gripper systems of the sheet take-up drum taking over the sheet or the like, this spring action no longer exists, although longer sheets are still in the printing zone.

Es sind zwar bereits auch Vorrichtungen bekannt, die nach Übergabe des Bogens an die Greifersysteme der Bogenabnahme­trommel den Bogen unter Spannung halten, also in jener Phase, in der die eigentlichen Längendifferenzen und die Abrißstreifen am Bogenende entstehen (siehe z.B. DE-PS 2 111 049, DE-PS 2 017 417). Letztgenannte Vorrichungen wirken aber erst nach Übergabe des Bogens an die Greifer­systeme der Bogenabnahmetrommel oder dgl. und nicht bereits während der Förderung des Bogenanfangs durch die Druckzone.Devices are already known which keep the sheet under tension after the sheet has been transferred to the gripper systems of the sheet take-up drum, i.e. in the phase in which the actual length differences and the tear strips occur at the end of the sheet (see, for example, DE-PS 2 111 049, DE-PS 2 017 417). However, the latter devices only work after the sheet has been transferred to the gripper systems of the sheet take-up drum or the like and not while the sheet is being conveyed through the printing zone.

Aus dem DE-GM 7 227 231 ist eine Blasleiste bekannt, die in dem zwickelförmigen Raum zwischen Gummi- und Druckzylinder auf der Seite des auslaufenden bedruckten Bogens im Bereich des Abrißwinkels angeordnet ist und Druckluft zwischen dem Gummizylinder und den Bogen einbläst. Diese Blasvorrichtung wirkt aber nicht mit einer federnden Abdeckung auf dem Druckzy­linder zusammen.From DE-GM 7 227 231 a blow molding is known which in the gusset-shaped space between the rubber and impression cylinders is arranged on the side of the outgoing printed sheet in the region of the tear-off angle and blows compressed air between the rubber cylinder and the sheet. However, this blowing device does not interact with a resilient cover on the pressure cylinder.

Aus der DE-PS 3 542 649 ist bereits eine flexible Folienbe­spannung bekannt. Diese Bespannung wirkt mit einem Rolladen­aufzug zusammen, der am Druckanfang im Inneren eines Druckzy­linders auf eine Wickelvorrichtung zum Einstellen auf unter­schiedliche Bogenformate aufwickelbar ist, so daß das wenig über das Ende des Aufzuges überstehende Bogenende unge­hindert von auf der nachgeordneten Wendetrommel angeordneten mechanischen Greifern am Druckzylinder erfassbar ist. Dieser rolladenähnliche Aufzug mit Folienbespannung ist aber zum Druckende hin relativ fest geführt und nicht lose ange­ordnet. Außerdem wirkt er nicht mit einer kraftschlüssigen Anpreßvorrichtung zusammen.A flexible film covering is already known from DE-PS 3 542 649. This covering interacts with a roller shutter that can be wound up at the beginning of the print inside a printing cylinder on a winding device for setting to different sheet formats, so that the sheet end protruding little beyond the end of the elevator can be gripped unhindered by mechanical grippers arranged on the downstream reversing drum on the printing cylinder . This roller shutter-like elevator with film covering is guided relatively firmly towards the end of the print and is not arranged loosely. In addition, it does not interact with a non-positive pressure device.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Vor­richtung genannter Gattung so auszubilden, daß durch ein federndes, im Bereich des Druckzylinders wirkendes Element plötzliche Änderungen der Bogenspannung von Druckanfang bis Druckende auch nach Übergabe des Bogens von den Greifer­systemen des Druckzylinders an die Greifersysteme der Bogen­abnahmetrommel vermieden werden.The invention is therefore based on the object of designing a device of the type mentioned so that sudden changes in the sheet tension from the start of printing to the end of printing are avoided by a resilient element acting in the area of the printing cylinder, even after the sheet has been transferred from the gripper systems of the printing cylinder to the gripper systems of the sheet take-up drum will.

Diese Aufgage wird durch die kennzeichnenden Merkmale des ersten Patentanspruches gelöst. Weiterbildungen der Er­findung ergeben sich aus den Unteransprüchen in Verbindung mit der Zeichnung und der Beschreibung.This charge is solved by the characterizing features of the first claim. Further developments of the invention result from the subclaims in connection with the drawing and the description.

Der Vorteil der Erfindung besteht darin, daß sowohl ein beruhigter Einlauf eines bedruckten Bogens in die Druckzone erreichbar ist, wodurch Wellenbildung sowie Flattern der Bogen bzw. Abklatschdoublieren und Abschmieren des Bogens vermieden wird. Außerdem wird das gleichmäßige Ablösen des bedruckten Bogens vom Gummizylinder bei minimalem Abriß­winkel erreicht, wodurch die Gefahr der Abrißstreifenbildung gemildert wird.The advantage of the invention is that both a calm entry of a printed sheet into the printing zone is attainable, whereby wave formation as well as fluttering of the sheet or duplicating and smearing of the sheet is avoided. In addition, the uniform detachment of the printed sheet from the blanket cylinder is achieved with a minimal tear-off angle, thereby reducing the risk of tear-strip formation.

Die Erfindung wird nachstehend anhand einer Zeichnung in einem Ausführungsbeispiel näher erläutert.The invention is explained below with reference to a drawing in one embodiment.

Es zeigt:

  • Fig. 1 die erfindungsgemäße Vorrichtung an einer Mehrfarbenbogenrotations-Offsetdruckmaschine mit einem 5-Zylinder-Doppeldruckwerk und einem um eine Bogenabnahmetrommel geführten Kettenför­derer,
  • Fig. 2 den Druckzylinder nach Fig. 1 in vergrößerter Darstellung, als Ausschnitt,
  • Fig. 3 die Druckzone als Einzelheit zum Abbau der Druckspannung am Druckende,
  • Fig. 4 die erfindungsgemäße Vorrichtung nach Fig. 1 in Verbindung mit elektrostatischen Aufladegeräten.
It shows:
  • 1 shows the device according to the invention on a multi-color sheet-fed offset printing machine with a 5-cylinder double printing unit and a chain conveyor guided around a sheet removal drum,
  • 2 shows the printing cylinder of FIG. 1 in an enlarged view, as a detail,
  • 3 shows the pressure zone as a detail for reducing the compressive stress at the end of the print,
  • Fig. 4 shows the device according to the invention of Fig. 1 in connection with electrostatic charging devices.

Das in Fig. 1 gezeigte Druckwerk 1 einer Mehrfarbenbogen­rotations-Offsetdruckmaschine ist in herkömmlicher Weise aufgebaut und umfaßt zwei Platten-/Gummizylinderpaare 2, 3 bzw. 4, 5. Ein dem Druckwerk 1 zugeführter Bogen 12, der z.B. von einem nicht dargestellten Bogenanleger oder einem vorgeschalteten gleichartigen Druckwerk kommen kann, wird um einen Druckzylinder 6 geführt, wobei er mit einem Zweifar­bendruck versehbar ist. Der Bogen 12 wird mittels Greifer­systemen 11 um den Druckzylinder 6 geführt bzw. mittels Greifersystemen 9 an einer Transportkette 8 um eine Bogenab­nahmetrommel 10 herumgeführt und dabei durch die Druckzonen des Doppeldruckwerkes gefördert. Der Druckzylinder 6 weist in bekannter Weise Zapfen 17 auf.The printing unit 1 shown in FIG. 1 of a multi-color sheet-fed rotary offset printing machine is constructed in a conventional manner and comprises two plate / blanket cylinder pairs 2, 3 and 4, 5. A sheet 12 fed to the printing unit 1, the For example, can come from a sheet feeder, not shown, or an upstream similar printing unit, is guided around a printing cylinder 6, wherein it can be provided with a two-color print. The sheet 12 is guided by means of gripper systems 11 around the printing cylinder 6 or by means of gripper systems 9 on a transport chain 8 around a sheet take-up drum 10 and thereby conveyed through the printing zones of the double printing unit. The pressure cylinder 6 has pins 17 in a known manner.

Der Druckzylinder 6 ist mit einer federnden Abdeckung 7 be­spannt. Diese federnde Abdeckung 7 liegt im Bereich zwischen Druckanfang und Druckende lose und flächig auf der geschlos­senen Oberfläche des Druckzylinders 6 auf.The pressure cylinder 6 is covered with a resilient cover 7. This resilient cover 7 lies loosely and flatly on the closed surface of the printing cylinder 6 in the area between the start of the print and the end of the print.

Die federnde Abdeckung 7 ist entweder am Druckanfang befestigt oder in einer Wickelvorrichtung 15 aufgehängt, deren Wickelwelle 16 im Druckzylinder 6 in Büchsen 18, 19 drehbar gelagert ist. Die federnde Abdeckung 7 ist in das Innere des Druckzylinders 6 dadurch am Druckanfang hinein­ziehbar, so daß die auf der Oberfläche des Druckzylinders 6 zur Anlage kommende Länge der federnden Abdeckung 7 in Abhängigkeit von dem zu verarbeitenden Bogenformat einge­stellt werden kann, während bei fester Anordnung am Druck­anfang keine Einstellung auf Bogenformat erfolgen kann.The resilient cover 7 is either attached to the beginning of the print or suspended in a winding device 15, the winding shaft 16 of which is rotatably mounted in the printing cylinder 6 in bushes 18, 19. The resilient cover 7 can thus be drawn into the inside of the printing cylinder 6 at the start of printing, so that the length of the resilient cover 7 coming into contact with the surface of the printing cylinder 6 can be adjusted depending on the sheet format to be processed, while with a fixed arrangement at the beginning of printing no adjustment to sheet format can be made.

Die zur Anlage kommende federnde Abdeckung 7 wird vorteil­hafterweise so aufgewickelt, daß zwischen deren Ende und dem Ende des Bogens 12 stets ein Abstand a von wenigen Milli­metern in Umfangsrichtung besteht. Dabei ist es gleich­gültig, ob der Bogen 12 oder die federnde Abdeckung 7 die größere Länge aufweisen (Fig. 2 und 3).The resilient cover 7 coming into contact is advantageously wound up so that there is always a distance a of a few millimeters in the circumferential direction between the end and the end of the sheet 12. It does not matter whether the bow 12 or the resilient cover 7 have the greater length (FIGS. 2 and 3).

Bevorzugt wird Stahl bzw. ein anderer Werkstoff mit ver­ gleichbaren Federeigenschaften als elastische Abdeckung 7 verwendet, z.B. Federbandstahl mit gewisser Rückstellkraft. Von der Oberflächenstruktur ist der Werkstoff so gestaltet, daß er farbabstoßend, abriebfest und leicht zu reinigen ist. Außerdem soll er eine hohe Affinität zum Bedruckstoff besitzen.Steel or another material with ver is preferred Similar spring properties used as elastic cover 7, for example spring steel with a certain restoring force. The surface structure of the material is designed so that it is color-repellent, abrasion-resistant and easy to clean. In addition, it should have a high affinity for the substrate.

Über eine mit einer Skala versehene Verstelleinrichtung kann die Wickelvorrichtung 15 von Hand oder gegebenenfalls auch motorisch über entsprechende und in der Zeichnung nicht dargestellte Stelleinrichtungen in die geforderte Position gebracht werden.Via an adjusting device provided with a scale, the winding device 15 can be brought into the required position by hand or, if appropriate, also by means of a motor via corresponding adjusting devices not shown in the drawing.

Die federnde Abdeckung 7 kann auch leicht vormagnetisiert sein, so daß geringe Haftungskräfte zum Druckzylinder 6 hin auftreten. Eine nicht dargestellte Verzahnung am Druckanfang der federnden Abdeckung 7 erleichtert die Einführung und Positionierung beim Einspannen.The resilient cover 7 can also be slightly pre-magnetized so that low adhesive forces to the pressure cylinder 6 occur. A toothing, not shown, at the start of pressure of the resilient cover 7 facilitates the insertion and positioning during clamping.

Mit der federnden Abdeckung 7 wirkt eine kraftschlüssige Bogenanpreßvorrichtung zusammen, die als achsparallele Blasleisten 13 ausgebildet im zwickelförmigen Raum oberhalb des aus der Druckzone auslaufenden bedruckten Bogens 12 im Bereich des Abrißwinkels α angeordnet ist und zum Einblasen von Druckluft zwischen Gummizylinder 3 und dem Bogen 12 dienen.The resilient cover 7 interacts with a force-locking sheet pressing device, which is designed as an axially parallel blowing strip 13 and is arranged in the gusset-shaped space above the printed sheet 12 running out of the printing zone in the region of the tear-off angle α and is used for blowing compressed air between the rubber cylinder 3 and the sheet 12.

Der an den Blasluftleisten 13 vorwählbare Druckluftstrom läßt sich zeitlich vorteilhaft durch ein über eine Ein­tourenwelle gesteuertes Ventil 20 und gegeneinander verdreh­bare Steuerscheiben so steuern, daß die Druckluft nur in der Phase zwischen Druckanfang und Druckende eingeblasen wird.The preselectable compressed air flow on the blown air strips 13 can be advantageously controlled in time by a valve 20 controlled by a single-speed shaft and control discs which can be rotated relative to one another in such a way that the compressed air is blown in only in the phase between the beginning and end of the pressure.

Die prinzipielle Wirkungsweise der mit einer kraftschlüssi­ gen Bogenanpreßvorrichtung in Form von Blasleisten 13 zusammen­wirkenden Vorrichtung ist wie folgt:
Beim Verlassen der Druckzone 1 zwischen Gummizylinder 3 und Druckzylinder 6 wird der bedruckte Bogen 12 am Gummizylinder 3 von der federnden Abdeckung 7 getrennt. Der Bogen 12 wird zum Schwingen angeregt und von der sich relativ frei bewegenden federnden Abdeckung 7 sowohl gedämpft als auch gespannt, weil die federnde Abdeckung 7 ein wenig radial aus dem Umkreis der Oberfläche des Druckzylinders 6 austreten bzw. zum Kraftausgleich wieder eintreten kann. Es wird der gleiche elastische Effekt erzielt, wie bei einem stabilieren bzw. dickeren Bedruckstoff. Um möglichst weit vor der zweiten Druckzone des 5-Zylinder-Druckwerkes zwischen Gummi­zylinder 5 und Druckzylinder 6 ein die Bogenspannung regulierendes Zusammenspielen der federnden Abdeckung 7 mit dem aus der Druckzone 1 auslaufenden bedruckten Bogen 12 zu erreichen, wird ein frühzeitiger Kraftschluß zwischen beiden mit Hilfe von Blasluft 13 erzeugt.The principle of operation of a non-positive gene sheet pressing device in the form of blowing strips 13 cooperating device is as follows:
When leaving the printing zone 1 between the blanket cylinder 3 and the impression cylinder 6, the printed sheet 12 on the blanket cylinder 3 is separated from the resilient cover 7. The bow 12 is excited to oscillate and both damped and tensioned by the relatively freely moving resilient cover 7, because the resilient cover 7 can emerge a little radially from the periphery of the surface of the printing cylinder 6 or can re-enter for force compensation. The same elastic effect is achieved as with a stable or thicker substrate. In order to achieve as far as possible before the second printing zone of the 5-cylinder printing unit between the blanket cylinder 5 and the printing cylinder 6 an interplay of the resilient cover 7 regulating the sheet tension with the printed sheet 12 running out of the printing zone 1, an early adhesion between the two is achieved with the Blown air 13 generated.

Zunächst wird im Zusammenwirken von federnder Abdeckung 7 und kraftschlüssiger Bogenanpreßvorrichtung der Abrißwinkel α durch Blasluft möglichst dicht an die erste Druckzone verlegt und außerdem wird der beim Druckabgang sonst in der Druckzone auf den Bogen 12 wirkende hohe Kraftsprung der Druckspannung zwischen Gummizylinder 3 und Druckzylinder 6 von δ auf δ′ (siehe Fig. 3) allmählich abge­baut. Dadurch bricht die Druckspannung nicht schlagartig zusammen. Um letzteres zu verhindern, mußten bisher besondere Maßnahmen am Gummizylinder 3, z.B. Zurichten des Gummituches oder am Druckzylinder 6, z.B. Anschaukelung am Druckende, getroffen werden.First, in the interaction of resilient cover 7 and force-locking sheet pressing device, the tear-off angle α is moved as close as possible to the first pressure zone by blown air and, moreover, the high force jump of the compressive stress between the blanket cylinder 3 and the pressure cylinder 6, otherwise acting in the pressure zone on the sheet 12, is δ gradually reduced to δ '(see Fig. 3). As a result, the compressive stress does not suddenly collapse. In order to prevent the latter, special measures on the rubber cylinder 3, e.g. Dressing the blanket or on the impression cylinder 6, e.g. Rocking at the end of the print.

Durch das Zusammenspiel von federnder Abdeckung 7 und Blasleisten 13 wird auf diese Weise nicht nur ein ruhiger, doublierfreier (Abklatschdoublieren) Bogeneinlauf in die zweite Druckzone erzielt, sondern zugleich die Gefahr des Entstehens von Abrißstreifen am Bogenende wesentlich herabgesetzt.The interaction of resilient cover 7 and blow strips 13 is not only one in this way Calm, doubling-free (duplicating) sheet entry into the second printing zone achieved, but at the same time significantly reduced the risk of tear strips at the end of the sheet.

Um den Druckabbau, d.h. den Kräfteverlauf noch günstiger zu gestalten, kann die Hinterkante der federnden Abdeckung 7 angeschrägt werden, so daß sich der Druck beim Druckabgang noch langsamer abbaut.In order to reduce the pressure, i.e. To make the course of forces even more favorable, the rear edge of the resilient cover 7 can be chamfered, so that the pressure at the pressure drop decreases even more slowly.

Die federnde Abdeckung 7 kann auch mit einer Blasleiste 21 kombiniert werden, die im zwickelförmigen Raum oberhalb des einlaufenden noch nicht bedruckten Bogens 12 zwischen Gummi­zylinder 3 und Druckzylinder 6 angeordnet ist. Hierdurch läßt sich ein beruhigter Bogeneinlauf auch in die erste Druckzone erreichen.The resilient cover 7 can also be combined with a blow molding 21, which is arranged in the gusset-shaped space above the incoming sheet 12, which has not yet been printed, between the blanket cylinder 3 and the impression cylinder 6. In this way, a calmed sheet entry can also be achieved in the first printing zone.

Der Kraftschluß läßt sich auch durch elektrostatische Kräfte zwischen Bogen 12 und der federnden Abdeckung 7 erzeugen (Fig. 4).The frictional connection can also be generated by electrostatic forces between the sheet 12 and the resilient cover 7 (Fig. 4).

Hierzu ist vor der ersten Druckzone und oberhalb des Bogens 12′ ein positive Ionen erzeugender Ionisierungsstab 22 auf den Bogen 12′ zu dessen positiver Aufladung gerichtet. Der Druckzylinder 6 ist geerdet, wodurch der Effekt der elektro­statischen Haftung wegen Aufladung gegen Masse nur zur Hälfte zur Wirkung kommt.For this purpose, in front of the first pressure zone and above the arc 12 ', a positive ion-generating ionizing rod 22 is directed towards the arc 12' for its positive charging. The pressure cylinder 6 is grounded, so that the effect of electrostatic adhesion due to charging against the mass is only half effective.

Besser ist es, wenn die Abdeckung 7 gegenüber dem Druck­zylinder 6 isoliert wird und vor der ersten Druckzone zwischen Bogen 12 und isolierter Abdeckung 7 außerdem ein negative Ionen erzeugender Ionisierungsstab 23 auf die isolierte Abdeckung 7 zu deren negativer Aufladung gerichtet wird.It is better if the cover 7 is insulated from the printing cylinder 6 and, before the first printing zone between the sheet 12 and the insulated cover 7, a negative ion-generating ionizing rod 23 is also directed onto the insulated cover 7 for its negative charging.

Als isolierende Abdeckung 7 kann z.B. eine metallisierte Kunststoffolie verwendet werden. Zur Neutralisation des Bogens 12′ sind den beiden ungleichnamige Ladungen (+, -) erzeugenden Ionisierungsstäben 22, 23 Entionisierungsstäbe 24, 25 vorgeordnet, die auf den Bogen 12′ von unten bzw. von oben gerichtet sind, wobei beide z.B. mit geeigneter Wechselspannung gespeist werden. Diese Neutralisation der Ladungen schafft eindeutige Ausgangsverhältnisse für die spätere positive Aufladung des Bogens 12′. Zur Aufhebung des Kraftschlusses zwischen Bogen 12′ und Abdeckung 7 ist ein weiterer Entionisierungsstab 14 kurz vor der Übergabestelle des bedruckten Bogens 12′ an die Greifersysteme 9 der Bogen­abnahmetrommel 10 angeordnet.As an insulating cover 7, e.g. a metallized plastic film can be used. To neutralize the arc 12 'are the two charges of the same name (+, -) ionizing bars 22, 23 upstream deionizing bars 24, 25, which are directed to the arc 12' from below or from above, both of which e.g. be fed with suitable AC voltage. This neutralization of the charges creates clear starting conditions for the later positive charging of the sheet 12 '. To cancel the adhesion between sheet 12 'and cover 7, another deionizing bar 14 is arranged shortly before the transfer point of the printed sheet 12' to the gripper systems 9 of the sheet take-up drum 10.

Die erforderlichen elektrischen Schaltungen sowie zugehörige Bauelemente zur Erzeugung elektrostatischer Aufladungen bzw. Entladungen eines Bogens oder bestimmter Druckmaschinenteile sind bereits allgemein bekannt. Derartige Schaltungen sind nicht Gegenstand der vorliegenden Erfindung.The necessary electrical circuits and associated components for generating electrostatic charges or discharges of an arc or certain printing press parts are already generally known. Such circuits are not the subject of the present invention.

BezugszeichenlisteReference symbol list

1 Druckwerk
2 Plattenzylinder
3 Gummizylinder
4 Plattenzylinder
5 Gummizylinder
6 Druckzylinder
7 federnde Abdeckung
8 Transportkette
9 Greifersystem
10 Bogenabnahmetrommel
11 Greifersystem
12 Bogen
13 Blasleiste
14 Entionisierungsstab
15 Aufwickelvorrichtung
16 Wickelwelle
17 Zapfen
18 Buchse
19 Buchse
20 Ventil
21 Blasleiste
22 Ionisierungsstab
23 Ionisierungsstab
24 Ionisierungsstab
25 Ionisierungsstab
1 printing unit
2 plate cylinders
3 rubber cylinders
4 plate cylinders
5 rubber cylinders
6 printing cylinders
7 resilient cover
8 transport chain
9 gripper system
10 sheet take-up drum
11 gripper system
12 sheets
13 blow bar
14 Deionizing stick
15 take-up device
16 winding shaft
17 cones
18 socket
19 socket
20 valve
21 blow bar
22 ionizing bar
23 ionizing bar
24 ionizing bar
25 ionizing bar

Claims (12)

1.) Vorrichtung zum Fördern von Bogen durch die Druckzone von Gummizylinder und Druckzylinder einer Bogendruck­maschine mittels Greifersystemen, wobei federnde Mittel zur Aufrechterhaltung der Bogenspannung im Bereich des Druckzylinders vorgesehen sind,
dadurch gekennzeichnet,
daß der Druckzylinder (6) mit einer federnden Abdeckung (7) bespannt ist, die am Druckanfang befestigt ist, aber zum Druckende hin lose auf der geschlossenen Oberfläche des Druckzylinders (6) aufliegt.1.) Device for conveying sheets through the printing zone of the blanket cylinder and impression cylinder of a sheet-fed printing machine by means of gripper systems, resilient means for maintaining the sheet tension being provided in the area of the impression cylinder,
characterized by
that the printing cylinder (6) is covered with a resilient cover (7) which is attached to the beginning of the print, but lies loosely on the closed surface of the printing cylinder (6) towards the end of the print. 2.) Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die federnde Abdeckung (7) am Druckanfang in das Innere des Druckzylinders (6) hineinziehbar und dort auf eine Wickelvorrichtung (15) aufwickelbar ist, so daß die auf der Oberfläche des Druckzylinders (6) zur Anlage kommende Länge der federnden Abdeckung (7) auf das zu verarbeitende Bogenformat einstellbar ist.2.) Device according to claim 1,
characterized by
that the resilient cover (7) can be pulled into the interior of the printing cylinder (6) at the beginning of the print and can be wound there onto a winding device (15), so that the length of the resilient cover (7) coming into contact with the surface of the printing cylinder (6) is adjustable to the sheet format to be processed. 3.) Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß die Länge der zur Anlage kommenden federnden Abdeckung (7) so eingestellt ist, daß zwischen derem Ende und dem Ende des Bogens (12) stets ein Abstand (a) in Umfangsrichtung besteht (Fig. 3).3.) Device according to claim 1 and 2,
characterized by
that the length of the resilient cover (7) coming into contact is set such that there is always a distance (a) in the circumferential direction between the end and the end of the arc (12) (FIG. 3). 4.) Vorrichtung nach Anspruch 1 bis 3,
dadurch gekennzeichnet,
daß der federnden Abdeckung (7) eine kraftschlüssige Bogenanpreßvorrichtung zugeordnet ist.4.) Device according to claim 1 to 3,
characterized by
that the resilient cover (7) is assigned a non-positive sheet pressing device. 5.) Vorrichtung nach Anspruch 1 bis 4,
dadurch gekennzeichnet,
daß als kraftschlüssige Bogenanpreßvorrichtung achsparallele Blasleisten (13) im zwickelförmigen Raum oberhalb des aus der Druckzone auslaufenden, bedruckten Bogens (12) angeordnet sind.5.) Device according to claim 1 to 4,
characterized by
that axially parallel blow strips (13) are arranged in the gusset-shaped space above the printed sheet (12) running out of the printing zone as a force-locking sheet pressing device. 6.) Vorrichtung nach Anspruch 1 bis 5,
dadurch gekennzeichnet,
daß mindestens eine weitere Blasleiste (21) im zwickelförmigen Raum oberhalb des einlaufenden, noch nicht bedruckten Bogens (12) zwischen Gummizylinder (3) und Druckzylinder (6) angeordnet ist.6.) Device according to claim 1 to 5,
characterized by
that at least one further blow bar (21) is arranged in the gusset-shaped space above the incoming, not yet printed sheet (12) between the blanket cylinder (3) and the impression cylinder (6). 7.) Vorrichtung nach Anspruch 1 bis 6,
dadurch gekennzeichnet,
daß auf einer Eintourenwelle zwei im Umfang gegeneinan­der verstellbare Steuerscheiben angordnet sind, die den Luftstrom so steuern, daß in Abhängigkeit vom Bogen­format Blasluft nur im Bereich von Bogenanfang bis Bogenende den Blasleisten (13) zuführbar ist.7.) Device according to claim 1 to 6,
characterized by
that are arranged on a single-speed shaft two circumferentially adjustable control disks that control the air flow so that, depending on the sheet format, blown air can only be fed to the blow strips (13) in the area from the beginning to the end of the sheet. 8.) Vorrichtung nach Anspruch 1 bis 4,
dadurch gekennzeichnet,
daß Aufladegeräte (22, 23) zur ungleichnamigen elektrostatischen Aufladung von Abdeckung (7) und Bogen (12) so im Bereich des Druckzylinders (6) vorgesehen sind, daß ein kraftschlüssiges Anpressen zwischen Abdeckung (7) und Bogen (12) durch elektrostatische Haftung während der Förderung durch die Druckzonen erfolgt.8.) Device according to claim 1 to 4,
characterized by
that charging devices (22, 23) for dissimilar electrostatic charging of the cover (7) and sheet (12) are provided in the area of the printing cylinder (6) in such a way that a force-fitting pressing between the cover (7) and sheet (12) by electrostatic adhesion during the promotion takes place through the pressure zones. 9.) Vorrichtung nach Anspruch 1 bis 4,
dadurch gekennzeichnet,
daß vor der ersten Druckzone und oberhalb des Bogens (12) ein positive Ionen erzeugender Ionisierungsstab (22) auf den Bogen (12) zu dessen positiver Aufladung gerichtet ist und daß der Druckzylinder (6) geerdet ist.9.) Device according to claim 1 to 4,
characterized by
that in front of the first printing zone and above the arc (12) a positive ion-generating ionizing rod (22) is directed towards the arc (12) for its positive charging and that the printing cylinder (6) is grounded. 10.) Vorrichtung nach Anspruch 1 bis 4, 8 und 9,
dadurch gekennzeichnet,
daß die Abdeckung (7) gegenüber dem Druckzylinder (6) isoliert ist und daß vor der ersten Druckzone zwischen Bogen (12) und isolierter Abdeckung (7) ein negative Ionen erzeugender Ionisierungsstab (23) auf die isolierte Abdeckung (7) zu deren negativer Aufladung gerichtet ist.10.) Device according to claim 1 to 4, 8 and 9,
characterized by
that the cover (7) is insulated from the pressure cylinder (6) and that before the first printing zone between the sheet (12) and insulated cover (7) a negative ion-generating ionizing rod (23) on the insulated cover (7) for its negative charging is directed. 11.) Vorrichtung nach Anspruch 1 bis 4 und 8 bis 10,
dadurch gekennzeichnet,
daß zur Neutralisation des Bogens (12) den ungleich­namige Ladungen erzeugenden Ionisierungsstäben (22, 23) Entionisierungsstäbe (24, 25) vorgeordnet sind, die auf den Bogen von unten bzw. von oben gerichtet sind.11.) Device according to claim 1 to 4 and 8 to 10,
characterized by
that for neutralizing the arc (12) the ionization rods (22, 23) generating charges of the same name are preceded by deionization rods (24, 25) which are directed onto the arc from below or from above. 12.) Vorrichtung nach Anspruch 1 bis 4, sowie 8 bis 11,
dadurch gekennzeichnet,
daß zur Aufhebung der elektrostatischen Haftung von Bogen (12) und Abdeckung (7) ein Entionisierungsstab (14) kurz vor der Übergabestelle des bedruckten Bogens (12) an die Greifersysteme (9) der Bogenabnahmetrommel (10) angeordnet ist.12.) Device according to claim 1 to 4, and 8 to 11,
characterized by
that to remove the electrostatic adhesion of the sheet (12) and cover (7), a deionizing bar (14) is arranged shortly before the transfer point of the printed sheet (12) to the gripper systems (9) of the sheet removal drum (10).
EP88112088A 1987-09-10 1988-07-27 Device for conveying sheets through the printing zone between the offset cylinder and the impression cylinder in a rotary sheet-fed printing press Expired - Lifetime EP0306682B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88112088T ATE83193T1 (en) 1987-09-10 1988-07-27 DEVICE FOR CONVEYING SHEET THROUGH THE PRINTING ZONE OF RUBBER CYLINDER AND PRINTING CYLINDER OF A SHEET ROTARY PRINTING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3730386 1987-09-10
DE3730386A DE3730386C1 (en) 1987-09-10 1987-09-10 Device for conveying sheets through the printing zone of the blanket cylinder and impression cylinder of a sheet-fed rotary printing machine

Publications (3)

Publication Number Publication Date
EP0306682A2 true EP0306682A2 (en) 1989-03-15
EP0306682A3 EP0306682A3 (en) 1990-05-02
EP0306682B1 EP0306682B1 (en) 1992-12-09

Family

ID=6335697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112088A Expired - Lifetime EP0306682B1 (en) 1987-09-10 1988-07-27 Device for conveying sheets through the printing zone between the offset cylinder and the impression cylinder in a rotary sheet-fed printing press

Country Status (4)

Country Link
EP (1) EP0306682B1 (en)
AT (1) ATE83193T1 (en)
DE (2) DE3730386C1 (en)
ES (1) ES2036630T3 (en)

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DE4318777A1 (en) * 1993-06-05 1994-12-08 Kba Planeta Ag Device for assisting sheet conveying
DE19826891A1 (en) * 1998-06-17 1999-12-23 Heidelberger Druckmasch Ag Sheet-fed rotary printing machine
DE19753089C2 (en) * 1997-11-29 2000-06-29 Roland Man Druckmasch Sheet guiding device in a printing press
DE19752492C2 (en) * 1997-11-27 2000-08-24 Roland Man Druckmasch Sheet guiding device in a printing press
EP1075947A1 (en) * 1999-08-07 2001-02-14 MAN Roland Druckmaschinen AG Sheet guiding device in a printing machine.
DE10005391A1 (en) * 2000-02-07 2001-08-09 Roland Man Druckmasch Method and device for sheet guiding in a rotary printing press
CN1078848C (en) * 1995-12-20 2002-02-06 Kba-普兰尼塔公开股份有限公司 Sheet guide for sheet temporary on cylinder
DE19829095C2 (en) * 1998-06-30 2002-04-25 Roland Man Druckmasch Sheet guiding device in a printing press
US6561508B2 (en) 2000-02-18 2003-05-13 Heidelberger Druckmaschinen Ag Device and method for transferring a sheet
US6684774B2 (en) 1997-05-09 2004-02-03 Heidelberger Druckmaschinen Ag Sheet-fed rotary printing press
DE19933438B4 (en) * 1999-07-16 2004-07-08 Man Roland Druckmaschinen Ag Printing machine with printing / coating units not involved in the printing / coating process
DE19753068B4 (en) * 1997-11-29 2004-12-09 Man Roland Druckmaschinen Ag Sheet guiding device in a printing press
WO2021004696A1 (en) 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet-processing machine with a turning device, method for conveying sheets, and use of sheet directing elements which contain deionization devices

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DE10056018B4 (en) * 2000-11-11 2014-03-13 Koenig & Bauer Aktiengesellschaft Device for supporting bowing and sheet storage
DE102005028838A1 (en) * 2005-06-25 2007-01-04 Man Roland Druckmaschinen Ag Sheet handling system for printer has the sheets smoothed and ionized prior to contacting the print roller
DE102007015347A1 (en) * 2007-03-30 2008-10-02 Koenig & Bauer Aktiengesellschaft Vibration reduction process for rotary press involves rotating rubber cylinder synchronously with printing cylinder before printing starts to set suitable run-out curve
DE102008001165A1 (en) * 2008-04-14 2009-10-15 Manroland Ag Sheet-fed cylinder e.g. impression cylinder, for transporting sheet into sheet-fed printing press, has unloading electrode directed to sheet, where cylinder contains base on which electrically insulated cylinder barrel is located

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DE7227231U (en) * 1972-10-26 Maschinenfab Augsburg-Nuernberg Device on sheet-fed rotary offset printing machines
DE544300C (en) * 1929-06-25 1932-02-17 Albert Schnellpressen Method and device for aligning the sheets in multicolor rotary printing presses
DE545919C (en) * 1929-09-18 1932-03-08 Leopold Rado Device for holding paper or metal foil, plant leaves, fibers, dust and the like. Like. On work equipment, such as printing machines
US3355639A (en) * 1965-04-05 1967-11-28 Harris Intertype Corp Sheet handling apparatus
DE2836098A1 (en) * 1978-08-17 1980-02-28 Karl Raes Offset printing press sheet insertion mechanism - has grips in cylinder trough interchangeable via slots in guide plate
DE3542649A1 (en) * 1985-12-03 1987-06-04 Roland Man Druckmasch BOW TURNING DEVICE FOR ROTARY PRINTING MACHINES IN ROW DESIGN

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318777A1 (en) * 1993-06-05 1994-12-08 Kba Planeta Ag Device for assisting sheet conveying
CN1078848C (en) * 1995-12-20 2002-02-06 Kba-普兰尼塔公开股份有限公司 Sheet guide for sheet temporary on cylinder
US6684774B2 (en) 1997-05-09 2004-02-03 Heidelberger Druckmaschinen Ag Sheet-fed rotary printing press
DE19752492C2 (en) * 1997-11-27 2000-08-24 Roland Man Druckmasch Sheet guiding device in a printing press
DE19753068B4 (en) * 1997-11-29 2004-12-09 Man Roland Druckmaschinen Ag Sheet guiding device in a printing press
DE19753089C2 (en) * 1997-11-29 2000-06-29 Roland Man Druckmasch Sheet guiding device in a printing press
DE19826891A1 (en) * 1998-06-17 1999-12-23 Heidelberger Druckmasch Ag Sheet-fed rotary printing machine
DE19829095C2 (en) * 1998-06-30 2002-04-25 Roland Man Druckmasch Sheet guiding device in a printing press
US7107902B1 (en) 1999-07-16 2006-09-19 Man Roland Druckmaschinen Ag Sheet-guiding device for a printing machine
DE19933438B4 (en) * 1999-07-16 2004-07-08 Man Roland Druckmaschinen Ag Printing machine with printing / coating units not involved in the printing / coating process
EP1075947A1 (en) * 1999-08-07 2001-02-14 MAN Roland Druckmaschinen AG Sheet guiding device in a printing machine.
DE10005391A1 (en) * 2000-02-07 2001-08-09 Roland Man Druckmasch Method and device for sheet guiding in a rotary printing press
US6561508B2 (en) 2000-02-18 2003-05-13 Heidelberger Druckmaschinen Ag Device and method for transferring a sheet
WO2021004696A1 (en) 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet-processing machine with a turning device, method for conveying sheets, and use of sheet directing elements which contain deionization devices
CN113891801A (en) * 2019-07-09 2022-01-04 柯尼格及包尔公开股份有限公司 Sheet-processing machine with turning device, method for feeding sheets and use of a sheet-guiding element comprising a deionizing device
US11498790B2 (en) 2019-07-09 2022-11-15 Koenig & Bauer Ag Sheet-processing machine comprising a turning device, method for conveying sheets, and use of sheet guide elements containing deionization devices
EP4209349A1 (en) 2019-07-09 2023-07-12 Koenig & Bauer AG Sheet processing machine, use of the sheet processing machine, method for conveying sheets and use of sheet guiding elements containing deionization devices
EP4209351A1 (en) 2019-07-09 2023-07-12 Koenig & Bauer AG Sheet processing machine, use of the sheet processing machine, method for conveying sheets and use of sheet guiding elements containing deionization devices
EP4209350A1 (en) 2019-07-09 2023-07-12 Koenig & Bauer AG Sheet processing machine, use of the sheet processing machine and method for conveying sheets
EP4209352A1 (en) 2019-07-09 2023-07-12 Koenig & Bauer AG Sheet processing machine, use of the sheet processing machine, method for conveying sheets and use of sheet guiding elements containing deionization devices

Also Published As

Publication number Publication date
ES2036630T3 (en) 1993-06-01
DE3876547D1 (en) 1993-01-21
EP0306682A3 (en) 1990-05-02
DE3730386C1 (en) 1989-04-13
EP0306682B1 (en) 1992-12-09
ATE83193T1 (en) 1992-12-15

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