EP0939699A1 - Printing method - Google Patents

Printing method

Info

Publication number
EP0939699A1
EP0939699A1 EP97948698A EP97948698A EP0939699A1 EP 0939699 A1 EP0939699 A1 EP 0939699A1 EP 97948698 A EP97948698 A EP 97948698A EP 97948698 A EP97948698 A EP 97948698A EP 0939699 A1 EP0939699 A1 EP 0939699A1
Authority
EP
European Patent Office
Prior art keywords
sheet
stack
printing
delivery
printed
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
EP97948698A
Other languages
German (de)
French (fr)
Other versions
EP0939699B1 (en
Inventor
Hans-Bernhard BOLZA-SCHÜNEMANN
Arndt Jentzsch
Reinhard Nerger
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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
Priority claimed from DE19644950A external-priority patent/DE19644950A1/en
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0939699A1 publication Critical patent/EP0939699A1/en
Application granted granted Critical
Publication of EP0939699B1 publication Critical patent/EP0939699B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/10—Rotary lithographic machines for offset printing using one impression cylinder co-operating with several transfer cylinders for printing on sheets or webs, e.g. satellite-printing units

Definitions

  • the invention relates to a method for printing a sheet front and for printing a sheet back.
  • Printing presses are generally known (EP 051 2549), in which a double sheet pass is required for printing on the sheet front side and for subsequent printing of the sheet reverse side and the stack has to be turned over before the second sheet pass to print the sheet printed side.
  • the high outlay for the second sheet pass and in particular for turning the sheet stack with an additional stack turning device is disadvantageous.
  • Printing machines are also known (DD 54 703), in which the sheet to be printed is first printed on the front side of the sheet, turned in the printing press, printed on the sheet back side and then placed on a delivery sheet stack with the sheet back side up.
  • the object of the invention is to provide a method for printing on the front side of the sheet and subsequent printing on the back side of the sheet without great expenditure on machine technology and handling.
  • FIGS. 1 and 3 contains a stack of feeder sheets 1, conveying elements 2, further conveying elements 3, a sheet-guiding cylinder 4 designed as a printing cylinder, which cooperates with two offset cylinders 5, each offset cylinder being assigned a printing form cylinder 6 with two inking / dampening rollers 7, additional conveying elements 9 and a delivery sheet stack 11.
  • the sheet 12 to be printed is first transported from the feeder sheet stack 1 in the direction of the sheet guide cylinder 4, this direction is referred to as sheet travel direction 14.
  • the transfer of the printed sheets from the sheet guide cylinder 4 to the subsequent additional conveying elements 9 takes place counter to the sheet travel direction 14, this direction is referred to below as the sheet transport direction 15.
  • the delivery sheet stack 11 is arranged in the sheet travel direction 14 in front of the feeder sheet stack 1.
  • the feeder sheet stack 1 and the delivery sheet stack 11 are arranged in the same stacking level 10.
  • the sheet stack 1; 11 are each assigned to a stack transport trolley 16 with rollers 17 which can be moved on the stack plane 10.
  • the printing press contains a stack of feeder sheets 1, conveyor elements 2 for Sheet separation, further conveying elements 3, a sheet guiding cylinder 4 designed as a printing cylinder, which cooperates with two offset cylinders 5, each printing cylinder being assigned a printing form cylinder 6 with two inking / dampening rollers 7, additional conveying elements 9 and a delivery sheet stack 11.
  • the Sheet as in FIG. 1 is first conveyed in the sheet travel direction 14 and then in the sheet transport direction 15.
  • the stacks are arranged on vertically movable stack support plates 18 fastened to chains 20.
  • a vertically movable stack support plate is designed as a stack support and rotating plate 19 and is rotatable in its horizontal plane.
  • the sheet conveyed from the feeder sheet stack 1 to the sheet guiding cylinder 4 is first printed on the sheet back side based on the machine diagrams described, based on the position of the sheet on the feeder sheet stack 1, and is placed on the delivery sheet stack 11 with the printed sheet back side up.
  • This offers the possibility of bringing the delivery sheet stack 11 into the position of the feed sheet stack 1 by lowering or shifting or by rotating through 180 ° and shifting or lowering and turning through 180 °, and immediately the subsequent printing of the front of the sheet in a second sheet pass without stacking to start.
  • Turning the stack offers the advantage that the contact edge relevant for high-quality printing always, i.e. when printing on the front of the sheet and when printing on the back of the sheet, is in the direction of the sheet in the front.
  • Fig. 2 the handling of the feeder sheet stack 1 and the delivery sheet stack 11 when printing the sheet front and sheet back is shown schematically.
  • the stack of feeder sheets 1 is moved into its starting position and the stack transport carriage 16 sheet stack 11 provided. Then (scheme below) the two stacks 1; 11 brought into their operating position.
  • the printing process now begins, that is to say the sheets 12 to be printed are removed from the stack of feed sheets 1, printed on the sheet back side - indicated schematically by a dashed triangle - conveyed to the delivery sheet stack 11 and deposited there with the printed sheet back side upward - indicated schematically by a filled triangle .
  • the empty stack transport carriage 16 of the feeder sheet stack 1 is extended, the delivery sheet stack 11 is lowered and rotated through 180 °. Then (top right) the delivery sheet stack 11 is moved into the starting position of the delivery sheet stack 1 and the empty stack transport carriage 16 of the delivery sheet stack 1 is moved into the starting position of the delivery sheet stack 11 and then brought into the respective operating position.
  • the second phase is shown in FIG. 2 in the embodiment with a turntable 13 and a linear conveyor unit 8.
  • the underside of the stack transport car 16 of the feeder sheet stack 1 and the delivery sheet stack 11 is assigned to the linear conveyor unit 8 and the turntable 13; or the underside of the stacking trolleys 16 is assigned to the linear conveyor unit 8 and the rollers 17 of the stacking trolleys 16 to the turntable 13.
  • the printing process now begins again in the third phase, ie the sheets to be printed are removed from the delivery sheet stack 11 located in the position of the feeder sheet stack 1.
  • printed on the now sheet-fed reverse side conveyed to the feeder sheet stack 1 located in the position of the delivery sheet stack 11, and deposited there with the now printed sheet-fed reverse side upward, schematically indicated by a triangle.
  • This process is continued until the stack transport carriage of the delivery sheet stack 11 is empty and in its upper position and the feeder sheet stack 1 is full and in an intermediate position; then the stack transport trolley 16 of the delivery sheet stack 11 is lowered to the starting position mentioned at the beginning.
  • both the empty stack transport carriage 16 of the delivery sheet stack 11 and the feeder sheet stack 1 are extended with the sheets printed on both sides.
  • the contact sheet stack 11 is brought into the position of the feed sheet stack 1 by lowering the delivery sheet stack and rotating the same by 180 ° by means of the stack support and rotating plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)

Abstract

The invention relates to a method for printing the front and the reverse side of a sheet. The invention provides a method for printing the front side of the sheet and subsequent printing of the reverse side thereof without requiring great mechanical and technical means or excessive handling. According to the invention, this is performed in that the sheet to be printed is taken out of the sheet feed pile (1), passed on to the sheet guide cylinder (4) to print the reverse side of the sheet. Once the reverse side of the sheet is printed, it is forwarded to the sheet exit pile (11) in the direction opposite to the running direction of the sheet towards the sheet guide cylinder (4), by a sheet transporting device (15). It is then deposited in the sheet exit pile (11) placed before the sheet feed pile in an equal plane relative to the running direction (14) of the sheet, the printed reverse side facing upwards. The sheet exit pile (11) can be brought to the position of the sheet feed pile for consecutive printing of the front side of the sheet.

Description

Verfahren zum BedruckenPrinting process
Die Erfindung betrifft ein Verfahren zum Bedrucken einer Bogenvorderseite und zum Bedrucken einer Bogenruckseite.The invention relates to a method for printing a sheet front and for printing a sheet back.
Es sind Druckmaschinen allgemein bekannt (EP 051 2549), bei denen zum Bedrucken der Bogenvorderseite und zum nachfolgenden Bedruk- ken der Bogenruckseite ein zweimaliger Bogendurchlauf und ein Wenden des Stapels vor dem zweiten Bogendurchlauf zum Bedrucken der Bogenruckseite erforderlich ist.Printing presses are generally known (EP 051 2549), in which a double sheet pass is required for printing on the sheet front side and for subsequent printing of the sheet reverse side and the stack has to be turned over before the second sheet pass to print the sheet printed side.
Nachteilig ist der hohe Aufwand für den zweiten Bogendurchlauf und insbesondere für das Wenden des Bogenstapels mit einer zusätzlichen StapelWendeeinrichtung .The high outlay for the second sheet pass and in particular for turning the sheet stack with an additional stack turning device is disadvantageous.
Es sind auch Druckmaschinen bekannt (DD 54 703), bei denen der zu bedruckende Bogen zuerst auf der Bogenvorderseite bedruckt, in der Druckmaschine gewendet, die Bogenruckseite bedruckt und danach mit der Bogenruckseite nach oben auf einen Auslagebogenstapel abgelegt wird.Printing machines are also known (DD 54 703), in which the sheet to be printed is first printed on the front side of the sheet, turned in the printing press, printed on the sheet back side and then placed on a delivery sheet stack with the sheet back side up.
Für kleine und/oder Kompaktmaschinen und/oder Druckmaschinen mit Bebilderung der Druckplatte in der Druckmaschine ist der Aufwand für eine Wendeeinrichtung relativ hoch und damit nachteilig.For small and / or compact machines and / or printing machines with imaging of the printing plate in the printing machine, the expenditure for a turning device is relatively high and therefore disadvantageous.
Aufgabe der Erfindung ist die Schaffung eines Verfahrens zum Bedrucken der Bogenvorderseite und nachfolgenden Bedrucken der Bogenruckseite ohne großen Maschinentechnischen- und Handlingsaufwand .The object of the invention is to provide a method for printing on the front side of the sheet and subsequent printing on the back side of the sheet without great expenditure on machine technology and handling.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention the object is achieved by the features of claim 1.
Nachfolgend wird das erfindungsgemäße Verfahren an einem Ausfüh- rungsbeispiel näher beschrieben. In den Zeichnungen zeigenThe method according to the invention is described in more detail below using an exemplary embodiment. Show in the drawings
Fig. 1 Bogendruckmaschine; Variante 1Fig. 1 sheet printing machine; version 1
Fig. 2 StapeltransportFig. 2 stack transport
Fig. 3 Bogendruckmaschine; Variante 2.Fig. 3 sheet printing machine; Variant 2.
Das Verfahren zum Bedrucken einer Bogenvorderseite und nachfolgendem Bedrucken einer Bogenruckseite wird anhand der in den Figuren 1 und 3 dargestellten Bogendruckmaschinen beschrieben. Die Druckmaschine gemäß Fig. 1 enthält einen Anlegerbogenstapel 1, Förderelemente 2, weitere Förderelemente 3, einen als Druckzylinder ausgebildeten Bogenführungszylinder 4, der mit zwei Offsetzylindern 5 zusammenwirkt, wobei jedem Offsetzylinder ein Druckformzylinder 6 mit zwei Farb-/Feuchtwalzen 7 zugeordnet ist, zusätzliche Förderelemente 9 und einen Auslagebogenstapel 11. Der zu bedruckende Bogen 12 wird zuerst vom Anlegerbogenstapel 1 in Richtung des Bogenführungszylinders 4 transportiert, diese Richtung wird mit Bogenlauf ichtung 14 bezeichnet. Die Übergabe der bedruckten Bogen vom Bogenführungszylinder 4 an die nachfolgenden zusätzlichen Förderelemente 9 erfolgt entgegen der Bogenlaufrichtung 14, diese Richtung wird nachfolgend Bogentransport- richtung 15 genannt.The method for printing on a sheet front and subsequent printing on a sheet reverse side is described with reference to the sheet printing machines shown in FIGS. 1 and 3. 1 contains a stack of feeder sheets 1, conveying elements 2, further conveying elements 3, a sheet-guiding cylinder 4 designed as a printing cylinder, which cooperates with two offset cylinders 5, each offset cylinder being assigned a printing form cylinder 6 with two inking / dampening rollers 7, additional conveying elements 9 and a delivery sheet stack 11. The sheet 12 to be printed is first transported from the feeder sheet stack 1 in the direction of the sheet guide cylinder 4, this direction is referred to as sheet travel direction 14. The transfer of the printed sheets from the sheet guide cylinder 4 to the subsequent additional conveying elements 9 takes place counter to the sheet travel direction 14, this direction is referred to below as the sheet transport direction 15.
Durch die Änderung der Bogenbewegungsrichtung - Bogenlaufrichtung 14 in Bogentransportrichtung 15 - ist der Auslagebogenstapel 11 in Bogenlaufrichtung 14 gesehen vor dem Anlegerbogenstapel 1 angeordnet.By changing the sheet movement direction - sheet travel direction 14 in sheet transport direction 15 - the delivery sheet stack 11 is arranged in the sheet travel direction 14 in front of the feeder sheet stack 1.
Des weiteren ist der Anlegerbogenstapel 1 und der Auslagebogenstapel 11 in gleicher Stapelebene 10 angeordnet. Die Bogenstapel 1; 11 sind jeweils einem Stapeltransportwagen 16 mit Rollen 17 zugeordnet, die auf der Stapelebene 10 bewegbar sind.Furthermore, the feeder sheet stack 1 and the delivery sheet stack 11 are arranged in the same stacking level 10. The sheet stack 1; 11 are each assigned to a stack transport trolley 16 with rollers 17 which can be moved on the stack plane 10.
Nach der in Fig. 3 dargestellten Ausführungsvariante enthält die Druckmaschine einen Anlegerbogenstapel 1, Förderelemente 2 zur Bogenvereinzelung, weitere Förderelemente 3, einen als Druckzylinder ausgebildeten Bogenführungszylinder 4, der mit zwei Offsetzylindern 5 zusammenwirkt, wobei jedem Offsetzylinder ein Druckformzylinder 6 mit zwei Farb-/Feuchtwalzen 7 zugeordnet ist, zusätzliche Förderelemente 9 und einen Auslagebogenstapel 11. Auch bei dieser Ausführungsform wird der Bogen wie bei Fig. 1 zuerst in Bogenlaufrichtung 14 und dann in Bogentransportrich- tung 15 gefördert.According to the embodiment variant shown in FIG. 3, the printing press contains a stack of feeder sheets 1, conveyor elements 2 for Sheet separation, further conveying elements 3, a sheet guiding cylinder 4 designed as a printing cylinder, which cooperates with two offset cylinders 5, each printing cylinder being assigned a printing form cylinder 6 with two inking / dampening rollers 7, additional conveying elements 9 and a delivery sheet stack 11. Also in this embodiment, the Sheet as in FIG. 1 is first conveyed in the sheet travel direction 14 and then in the sheet transport direction 15.
Die Stapel sind auf an Ketten 20 befestigten, vertikal bewegbaren Stapeltragplatten 18 angeordnet.The stacks are arranged on vertically movable stack support plates 18 fastened to chains 20.
Eine vertikal bewegbare Stapeltragplatte ist als Stapeltrag- und -drehplatte 19 ausgebildet und in ihrer horizontalen Ebene drehbar .A vertically movable stack support plate is designed as a stack support and rotating plate 19 and is rotatable in its horizontal plane.
Der vom Anlegerbogenstapel 1 zu dem Bogenführungszylinder 4 geförderte Bogen wird auf Grund der beschriebenen Maschinenschemata bezogen auf die Lage des Bogens auf dem Anlegerbogenstapel 1 zuerst auf der Bogenruckseite bedruckt und mit der bedruckten Bogenruckseite nach oben auf dem Auslagebogenstapel 11 abgelegt. Dies bietet die Möglichkeit den Auslagebogenstapel 11 durch Absenken oder Verschieben oder durch Drehen um 180° und Verschieben oder Absenken und Drehen um 180° in die Position des Anlage- bogenstapels 1 zu bringen und sofort den Nachfolgedruck der Vorderseite des Bogens in einem zweiten Bogendurchlauf ohne Stapelwendung zu beginnen. Das Drehen des Stapels bietet den Vorteil, daß die für einen qualitativ hochwertigen Druck relevante Anlagekante immer, d.h. beim Bedrucken der Bogenvorderseite und beim Bedrucken der Bogenruckseite, in Bogenlauf ichtung vorn liegt.The sheet conveyed from the feeder sheet stack 1 to the sheet guiding cylinder 4 is first printed on the sheet back side based on the machine diagrams described, based on the position of the sheet on the feeder sheet stack 1, and is placed on the delivery sheet stack 11 with the printed sheet back side up. This offers the possibility of bringing the delivery sheet stack 11 into the position of the feed sheet stack 1 by lowering or shifting or by rotating through 180 ° and shifting or lowering and turning through 180 °, and immediately the subsequent printing of the front of the sheet in a second sheet pass without stacking to start. Turning the stack offers the advantage that the contact edge relevant for high-quality printing always, i.e. when printing on the front of the sheet and when printing on the back of the sheet, is in the direction of the sheet in the front.
In Fig. 2 ist das Handling des Anlegerbogenstapels 1 und des Aus- lagebogenstapels 11 beim Bedrucken der Bogenvorderseite und Bogenruckseite schematisch dargestellt.In Fig. 2, the handling of the feeder sheet stack 1 and the delivery sheet stack 11 when printing the sheet front and sheet back is shown schematically.
In der ersten Phase wird der Anlegerbogenstapel 1 in seine Ausgangsposition gefahren und der Stapeltransportwagen 16 des Aus- lagebogenstapels 11 bereitgestellt. Danach (Schema darunter) werden die beiden Stapel 1; 11 in ihre Betriebsposition gebracht. Nunmehr beginnt der Druckvorgang, d.h. die zu bedruckenden Bogen 12 werden vom Anlegerbogenstapel 1 entnommen, auf der Bogenruckseite bedruckt - schematisch durch ein gestricheltes Dreieck angedeutet - zum Auslagebogenstapel 11 gefördert und dort mit der bedruckten Bogenruckseite nach oben - schematisch durch ein ausgefülltes Dreieck angedeutet - abgelegt. Dieser Vorgang wird fortgesetzt bis der Anlegerbogenstapel 1 leer und der Stapeltransportwagen 16 des Anlegerbogenstapels 1 in seiner oberen Position und der Auslagebogenstapel 11 voll und in einer Zwischenposition ist; danach wird der Stapeltransportwagen 16 des Anlegerbogenstapels 1 auf die eingangs erwähnte Ausgangsposition - Stapelebene 10 - abgesenkt.In the first phase, the stack of feeder sheets 1 is moved into its starting position and the stack transport carriage 16 sheet stack 11 provided. Then (scheme below) the two stacks 1; 11 brought into their operating position. The printing process now begins, that is to say the sheets 12 to be printed are removed from the stack of feed sheets 1, printed on the sheet back side - indicated schematically by a dashed triangle - conveyed to the delivery sheet stack 11 and deposited there with the printed sheet back side upward - indicated schematically by a filled triangle . This process continues until the feeder sheet stack 1 is empty and the stack transport carriage 16 of the feeder sheet stack 1 is in its upper position and the delivery sheet stack 11 is full and in an intermediate position; then the stack transport carriage 16 of the feeder sheet stack 1 is lowered to the starting position mentioned above - stacking level 10.
In der folgenden zweiten Phase wird der leere Stapeltransportwagen 16 des Anlegerbogenstapels 1 ausgefahren, der Auslagebogenstapel 11 abgesenkt und um 180° gedreht. Danach wird (Schema rechts oben) der Auslagebogenstapel 11 in die Ausgangsposition des Anlegerbogenstapels 1 und der leere Stapeltransportwagen 16 des Anlegerbogenstapels 1 in die Ausgangsposition des Auslagebo- genstapels 11 verfahren und danach in die jeweilige Betriebsposition gebracht.In the following second phase, the empty stack transport carriage 16 of the feeder sheet stack 1 is extended, the delivery sheet stack 11 is lowered and rotated through 180 °. Then (top right) the delivery sheet stack 11 is moved into the starting position of the delivery sheet stack 1 and the empty stack transport carriage 16 of the delivery sheet stack 1 is moved into the starting position of the delivery sheet stack 11 and then brought into the respective operating position.
Die zweite Phase ist in Fig. 2 in der Ausführung mit einem Drehtisch 13 und einer Linearfördereinheit 8 dargestellt. Die Unterseite der Stapeltransportwagen 16 des Anlegerbogenstapels 1 und des Auslagebogenstapels 11 ist dabei der Linearfördereinheit 8 und dem Drehtisch 13 zugeordnet; oder die Unterseite der Stapeltransportwagen 16 ist der Linearfördereinheit 8 und die Rollen 17 der Stapeltransportwagen 16 dem Drehtisch 13 zugeordnet .The second phase is shown in FIG. 2 in the embodiment with a turntable 13 and a linear conveyor unit 8. The underside of the stack transport car 16 of the feeder sheet stack 1 and the delivery sheet stack 11 is assigned to the linear conveyor unit 8 and the turntable 13; or the underside of the stacking trolleys 16 is assigned to the linear conveyor unit 8 and the rollers 17 of the stacking trolleys 16 to the turntable 13.
Nunmehr beginnt in der dritten Phase wieder der Druckvorgang, d.h. die zu bedruckenden Bogen werden vom in der Position des Anlegerbogenstapels 1 befindlichen Auslagebogenstapel 11 entnommen, auf der nunmehrigen Bogenruckseite bedruckt, zum in der Position des Auslagebogenstapels 11 befindlichen Anlegerbogenstapel 1 gefördert und dort mit der nunmehrigen bedruckten Bogenruckseite nach oben - schematisch durch ein Dreieck angedeutet - abgelegt. Dieser Vorgang wird fortgesetzt bis der Stapeltransportwagen des Auslagebogenstapels 11 leer und in seiner oberen Position und der Anlegerbogenstapel 1 voll und in einer Zwischenposition ist; danach wird der Stapeltransportwagen 16 des Auslagebogenstapels 11 auf die eingangs erwähnte Ausgangsposition abgesenkt. In der folgenden vierten Phase wird sowohl der leere Stapeltransportwagen 16 des Auslagebogenstapels 11 als auch der Anlegerbogenstapel 1 mit den beidseitig bedruckten Bogen ausgefahren. Bei den übereinander angeordneten Bogenstapeln (Fig. 3) erfolgt das Verbringen des Anlagebogenstapels 11 in die Position des Anlegerbogenstapels 1 durch Absenken des Auslagebogenstapels sowie durch ein Drehen desselben um 180° vermittels der Stapeltrag- und -drehplatte. The printing process now begins again in the third phase, ie the sheets to be printed are removed from the delivery sheet stack 11 located in the position of the feeder sheet stack 1. printed on the now sheet-fed reverse side, conveyed to the feeder sheet stack 1 located in the position of the delivery sheet stack 11, and deposited there with the now printed sheet-fed reverse side upward, schematically indicated by a triangle. This process is continued until the stack transport carriage of the delivery sheet stack 11 is empty and in its upper position and the feeder sheet stack 1 is full and in an intermediate position; then the stack transport trolley 16 of the delivery sheet stack 11 is lowered to the starting position mentioned at the beginning. In the following fourth phase, both the empty stack transport carriage 16 of the delivery sheet stack 11 and the feeder sheet stack 1 are extended with the sheets printed on both sides. In the stack of sheets arranged one above the other (FIG. 3), the contact sheet stack 11 is brought into the position of the feed sheet stack 1 by lowering the delivery sheet stack and rotating the same by 180 ° by means of the stack support and rotating plate.
BezugszeichenaufstellungREFERENCE NUMBERS
1 Anlegerbogenstapel1 stack of feeder sheets
2 Förderelement2 conveyor element
3 weiteres Förderelement3 further conveyor element
4 Bogenführungszylinder4 sheet guide cylinders
5 Offsetzylinder5 offset cylinders
6 Druckformzylinder6 printing form cylinders
7 Farb-/Feuchtwalze7 ink / dampening roller
8 Linearfördereinheit zusätzliches Förderelement 0 Stapelebene8 linear conveyor unit additional conveyor element 0 stacking level
11 Auslagebogenstapel 2 Bogen 3 Drehtisch 4 Bogenlaufrichtung 5 Bogentransportrichtung 6 Stapeltransportwagen 7 Rolle 8 Stapeltragplatte 9 Stapeltrag- und - drehplatte 0 Kette 11 delivery sheet stack 2 sheets 3 turntable 4 sheet travel direction 5 sheet transport direction 6 stack transport trolley 7 roll 8 stack support plate 9 stack support and rotating plate 0 chain

Claims

Patentansprüche claims
1. Verfahren zum Bedrucken einer Bogenvorderseite und zum Bedrucken einer Bogenruckseite eines von einem Anlegerbogenstapel über mindestens einen direkt oder indirekt mit mindestens einem einfärbbaren Druckformzylinder zusammenwirkenden Bogenführungszylinder zu einem Auslagebogenstapel geförderten Bogens, dadurch gekennzeichnet, daß der zu bedruckende Bogen vom Anlegerbogenstapel entnommen, dem Bogenführungszylinder zum Bedrucken der Bogenruckseite zugeführt, die Bogenruckseite bedruckt, der bedruckte Bogen mit einer Bogentransportrichtung zum Auslagebogenstapel entgegen der Bogenlaufrichtung zum Bogenführungszylinder transportiert, auf den relativ zur Bogenlaufrichtung in der gleichen Ebene vor dem Anlegerbogenstapel angeordneten Auslagebogenstapel mit der bedruckten Bogenruckseite nach oben abgelegt und der Auslagebogenstapel zum Nachfolgedruck der Bogenvorderseite in die Position des Anlegerbogenstapels verbringbar ist.1. A method for printing a sheet front and for printing a sheet reverse side of a sheet guiding cylinder which cooperates directly or indirectly with at least one inkable printing form cylinder to form a sheet fed sheet of paper from a feeder sheet stack, characterized in that the sheet to be printed is removed from the feeder sheet stack, the sheet guide cylinder to Printing on the sheet printing side, printing the sheet printing side, transporting the printed sheet with a sheet transport direction to the delivery sheet stack against the sheet travel direction to the sheet guide cylinder, placed on the delivery sheet stack arranged in the same plane in front of the feed sheet stack relative to the sheet travel direction with the printed sheet printing side facing up, and the delivery sheet stack for subsequent printing the sheet front can be brought into the position of the feeder sheet stack.
Verfahren zum Bedrucken einer Bogenvorderseite und zum Bedrucken einer Bogenruckseite eines von einem Anlegerbogenstapel über mindestens einen direkt oder indirekt mit mindestens einem einfärbbaren Druckformzylinder zusammenwirkenden Bogenführungszylinder zu einem Auslagebogenstapel geförderten Bogens, dadurch gekennzeichnet, daß der zu bedruckende Bogen vom Anlegerbogenstapel entnommen, dem Bogenführungszylinder zum Bedrucken der Bogenruckseite zugeführt, die Bogenruckseite bedruckt, der bedruckte Bogen mit einer Bogentransportrichtung zum Auslagebogenstapel entgegen der Bogenlaufrichtung zum Bogenführungszylinder transportiert, auf den deckungsgleich über dem Anlegerbogenstapel angeordneten Auslagebogenstapel mit der bedruckten Bogenruckseite nach oben abgelegt und der Auslagebogenstapel zum Nachfolgedruck der Bogenvorderseite in die Position des Anlegerbogenstapels verbringbar ist. Method for printing a sheet front side and for printing a sheet printing side of a sheet conveyed from a stack of feed sheets via at least one sheet guide cylinder interacting directly or indirectly with at least one inkable printing form cylinder to a delivery sheet stack, characterized in that the sheet to be printed is removed from the stack of feed sheets, the sheet guide cylinder for printing on the sheet Sheet printing side fed, the sheet printing side printed, the printed sheet transported with a sheet transport direction to the delivery sheet stack against the sheet travel direction to the sheet guide cylinder, placed on the delivery sheet stack arranged congruently above the feed sheet stack with the printed sheet printing side up and the delivery sheet stack for the subsequent printing of the sheet front side in the position of the feed sheet stack is.
3. Verfahren zum Bedrucken nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Verbringen des Auslagebogenstapels in die Position des Anlegerbogenstapels eine Drehung des Auslagebogenstapels um 180° einschließt.3. A method for printing according to claim 1 or 2, characterized in that the placing of the delivery sheet stack in the position of the feeder sheet stack includes a rotation of the delivery sheet stack by 180 °.
4. Verfahren zum Bedrucken nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stapelbewegung in und/oder quer und/oder senkrecht zur Bogenlaufrichtung durchgeführt wird.4. A method for printing according to claim 1 or 2, characterized in that the stacking movement is carried out in and / or transversely and / or perpendicular to the direction of sheet travel.
5. Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, daß der Anlegerbogenstapel von einer zugeordneten Linearfördereinheit in und entgegen der Bogenlauf ichtung transportiert und der relativ zur Bogenlaufrichtung vor dem Anlegerbogenstapel angeordnete Auslagebogenstapel von einem zugeordneten Drehtisch gedreht und anschließend von der Linearfördereinheit in Bogenlaufrichtung transportiert wird.5. A method for printing according to claim 1, characterized in that the feeder sheet stack transported by an associated linear conveyor unit in and against the sheet travel direction and the delivery sheet stack arranged relative to the sheet running direction in front of the feeder sheet stack is rotated by an associated turntable and then transported by the linear feed unit in the sheet travel direction .
6. Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, daß mittels des Drehtisches der Auslagebogenstapel gedreht und vertikal bewegt wird.6. A method for printing according to claim 1, characterized in that the delivery sheet stack is rotated and moved vertically by means of the rotary table.
7. Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, daß die Bogenstapel auf Stapeltransportwagen angeordnet sind .7. A method for printing according to claim 1, characterized in that the sheet stacks are arranged on stacking trolleys.
8. Verfahren zum Bedrucken nach Anspruch 2, dadurch gekennzeichnet, daß die Bogenstapel auf an Ketten befestigten vertikal bewegbaren Stapeltragplatten anordenbar sind.8. A method for printing according to claim 2, characterized in that the sheet stack can be arranged on vertically movable stack support plates attached to chains.
9. Verfahren zum Bedrucken nach Anspruch 2 und 8, dadurch gekennzeichnet, daß zum Drehen des Auslagebogenstapels die Stapeltragplatte als drehbare Stapeltrag- und -drehplatte ausgeführt ist . 9. A method for printing according to claim 2 and 8, characterized in that the stack support plate is designed as a rotatable stack support and rotating plate for rotating the delivery sheet stack.
10. Verfahren zum Bedrucken nach Anspruch 1 und 7, dadurch gekennzeichnet, daß die Rollen der Stapeltransportwagen der Stapelebene zugeordnet sind.10. A method for printing according to claim 1 and 7, characterized in that the roles of the stacking trolleys are assigned to the stacking level.
11. Verfahren zum Bedrucken nach Anspruch 1, 5 und 7, dadurch gekennzeichnet, daß die Linearfördereinheit und/oder der Drehtisch der Unterseite des Stapeltransportwagens zugeordnet sind.11. A method for printing according to claim 1, 5 and 7, characterized in that the linear conveyor unit and / or the turntable are assigned to the underside of the stacking trolley.
12. Verfahren zum Bedrucken nach Anspruch 1, 5 und 7, dadurch gekennzeichnet, daß die Linearfördereinheit der Unterseite des Stapeltransportwagens und die Rollen der Stapeltransportwagen dem Drehtisch zugeordnet sind. 12. A method for printing according to claim 1, 5 and 7, characterized in that the linear conveyor unit of the underside of the stacking trolley and the roles of the stacking trolley are assigned to the turntable.
EP97948698A 1996-10-29 1997-10-28 Printing method Expired - Lifetime EP0939699B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19644950A DE19644950A1 (en) 1996-05-24 1996-10-29 Printing front and rear side of paper sheet
DE19644950 1996-10-29
PCT/DE1997/002535 WO1998018624A1 (en) 1996-10-29 1997-10-28 Printing method

Publications (2)

Publication Number Publication Date
EP0939699A1 true EP0939699A1 (en) 1999-09-08
EP0939699B1 EP0939699B1 (en) 2001-12-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97948698A Expired - Lifetime EP0939699B1 (en) 1996-10-29 1997-10-28 Printing method

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EP (1) EP0939699B1 (en)
WO (1) WO1998018624A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554237C (en) * 1931-07-11 1932-07-06 Vogtlaendische Maschinenfabrik Device for stretching the sheets before printing in multi-color printing machines for sheets
US4181078A (en) * 1977-12-08 1980-01-01 Am International, Inc. Automatic recirculating duplicator
JPS58118254A (en) * 1982-01-07 1983-07-14 Toppan Printing Co Ltd Sheet offset printer for back printing
NL8503006A (en) * 1985-11-04 1987-06-01 Oce Nederland Bv METHOD AND APPARATUS FOR PRINTING IMAGES ON HALF OF BOTH SIDES OF SHEETS.
JP3028570B2 (en) * 1990-08-24 2000-04-04 ソニー株式会社 Double-sided printing device
DE19523378A1 (en) * 1995-06-30 1997-01-02 Koenig & Bauer Albert Ag Sheet offset rotary printing machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9818624A1 *

Also Published As

Publication number Publication date
WO1998018624A1 (en) 1998-05-07
EP0939699B1 (en) 2001-12-19

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