EP0939699B1 - Verfahren zum bedrucken - Google Patents
Verfahren zum bedrucken Download PDFInfo
- Publication number
- EP0939699B1 EP0939699B1 EP97948698A EP97948698A EP0939699B1 EP 0939699 B1 EP0939699 B1 EP 0939699B1 EP 97948698 A EP97948698 A EP 97948698A EP 97948698 A EP97948698 A EP 97948698A EP 0939699 B1 EP0939699 B1 EP 0939699B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- stack
- printing
- delivery
- feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
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 on a sheet front and for printing on the back of a sheet.
- Printing presses are generally known (EP 051 2549) in which for printing on the front of the sheet and for subsequent printing a double sheet pass and a Turn the stack over for printing before the second sheet pass the back of the sheet is required.
- the high cost of the second sheet pass is disadvantageous and especially for turning the stack of sheets with an additional one Stack turning device.
- Printing machines are also known (DD 54 703), in which the sheets to be printed are printed on the front of the sheet first, turned in the printing press, the back of the sheet printed and then face up on a delivery sheet stack is filed.
- the object of the invention is to provide a method for printing the front of the sheet and subsequent printing on the back of the sheet without great mechanical engineering and handling effort.
- each offset cylinder contains a stack of feeder sheets 1, conveyor elements 2, further conveyor elements 3, one as a pressure cylinder trained sheet guiding cylinder 4, with two offset cylinders 5 cooperates, each offset cylinder a printing form cylinder 6 is assigned with two ink / dampening rollers 7, additional Conveying elements 9 and a stack of delivery sheets 11.
- the sheet 12 to be printed is first removed from the stack of feeder sheets 1 transported in the direction of the sheet guide cylinder 4, this Direction is referred to as sheet travel direction 14.
- This Direction is referred to as sheet travel direction 14.
- the handover the printed sheet from the sheet guide cylinder 4 to the following Additional conveyor elements 9 take place counter to the direction of sheet travel 14, this direction is subsequently the sheet transport direction Called 15.
- sheet travel direction 14 in sheet transport direction 15 - is the delivery sheet stack 11 seen in the sheet running direction 14 in front of the feeder sheet stack 1 arranged.
- feeder sheet stack 1 and the delivery sheet stack 11 arranged in the same stack level 10.
- the sheet stack 1; 11 are each a stacking trolley 16 associated with rollers 17 which are movable on the stacking level 10 are.
- FIG Printing machine a feeder sheet stack 1, conveyor elements 2 for Sheet separation, further conveyor elements 3, one as a pressure cylinder trained sheet guiding cylinder 4, with two offset cylinders 5 interacts, with each offset cylinder Printing form cylinder 6 with two inking / dampening rollers 7 is assigned, additional conveyor elements 9 and a delivery sheet stack 11.
- the arch is like that in FIG. 1 first in the sheet travel direction 14 and then in the sheet transport direction 15 funded.
- the stacks are on vertically movable chains 20 attached Stack support plates 18 arranged.
- a vertically movable stack support plate is as a stack support and - Turning plate 19 formed and rotatable in its horizontal plane.
- the conveyed from the feeder sheet stack 1 to the sheet guide cylinder 4 Bow is based on the machine schemes described based on the position of the sheet on the feeder sheet stack 1 first printed on the reverse of the sheet and with the printed reverse of the sheet placed upwards on the delivery sheet stack 11.
- This offers the possibility of lowering the delivery sheet stack 11 or move or by rotating 180 ° and moving or lowering and rotating by 180 ° to the position of the sheet stack 1 to bring and immediately the subsequent print of the front the sheet in a second sheet pass without stacking to start.
- Turning the stack has 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, lying in the direction of sheet travel in front.
- the stack of feeder sheets 1 is in its starting position driven and the stack transport carriage 16 of the delivery sheet stack 11 provided. After that (scheme below) the two stacks 1; 11 brought into their operating position. Now the printing process begins, i.e. the sheets to be printed 12 are taken from the feeder sheet stack 1, on the back of the sheet printed - schematically indicated by a dashed triangle - Promoted to the delivery sheet stack 11 and there with printed sheet back up - schematically by a filled Triangle indicated - filed.
- the empty stacking trolley 16 of the feeder sheet stack 1 extended, the delivery sheet stack 11 lowered and rotated by 180 °. Then (Scheme top right) of the delivery sheet stack 11 in the starting position the feeder sheet stack 1 and the empty stack transport carriage 16 of the feeder sheet stack 1 in the starting position of the delivery sheet stack 11 move and then into the respective operating position brought.
- the second phase is in Fig. 2 in the version with a turntable 13 and a linear conveyor unit 8.
- the underside of the stack transport car 16 of the stack of feed sheets 1 and the delivery sheet stack 11 is the linear conveyor unit 8 and assigned to the turntable 13; or the bottom the stacking trolley 16 is the linear conveyor unit 8 and the rollers 17 of the stacking trolleys 16 assigned to the turntable 13.
- the printing process starts again in the third phase, i.e. the sheets to be printed are in the position of the feeder sheet stack 1 located delivery sheet stack 11 removed, printed on the back of the sheet now, in the position of the delivery sheet stack 11 located feed sheet stack 1 promoted and there with the now printed sheet back upwards - schematically indicated by a triangle - filed.
- This process continues until the stacking trolley of the Delivery sheet stack 11 empty and in its upper position and the Feeder sheet stack 1 is full and in an intermediate position; after that the stack transport carriage 16 of the delivery sheet stack 11 lowered to the starting position mentioned at the beginning.
- both the empty stacking trolley 16 of the delivery sheet stack 11 and the feeder sheet stack 1 extended with the sheets printed on both sides.
- FIG. 3 With the stack of sheets arranged one above the other (FIG. 3) bringing the stack of investment sheets 11 into the position of the stack of feed sheets 1 by lowering the stack of delivery sheets as well by rotating it 180 ° by means of the stack support and turntable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pile Receivers (AREA)
Description
- Fig. 1
- Bogendruckmaschine; Variante 1
- Fig. 2
- Stapeltransport
- Fig. 3
- Bogendruckmaschine; Variante 2.
- 1
- Anlegerbogenstapel
- 2
- Förderelement
- 3
- weiteres Förderelement
- 4
- Bogenführungszylinder
- 5
- Offsetzylinder
- 6
- Druckformzylinder
- 7
- Farb-/Feuchtwalze
- 8
- Linearfördereinheit
- 9
- zusätzliches Förderelement
- 10
- Stapelebene
- 11
- Auslagebogenstapel
- 12
- Bogen
- 13
- Drehtisch
- 14
- Bogenlaufrichtung
- 15
- Bogentransportrichtung
- 16
- Stapeltransportwagen
- 17
- Rolle
- 18
- Stapeltragplatte
- 19
- Stapeltrag- und - drehplatte
- 20
- Kette
Claims (9)
- Verfahren zum Bedrucken einer Bogenvorderseite und zum Bedrucken einer Bogenrückseite 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 Bogenrückseite zugeführt, die Bogenrückseite 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 Bogenrückseite nach oben abgelegt und der Auslagebogenstapel zum Nachfolgedruck der Bogenvorderseite in die Position des Anlegerbogenstapels verbringbar ist.
- Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, dass das Verbringen des Auslagebogenstapels in die Position des Anlegerbogenstapels eine Drehung des Auslagebogenstapels um 180° einschließt.
- Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, dass die Stapelbewegung in und/oder quer und/oder senkrecht zur Bogenlaufrichtung durchgeführt wird.
- Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, dass der Anlegerbogenstapel von einer zugeordneten Linearfördereinheit in und entgegen der Bogenlaufrichtung 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.
- Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, dass mittels des Drehtisches der Auslagebogenstapel gedreht und vertikal bewegt wird.
- Verfahren zum Bedrucken nach Anspruch 1, dadurch gekennzeichnet, dass die Bogenstapel auf Stapeltransportwagen angeordnet sind.
- Verfahren zum Bedrucken nach Anspruch 6, dadurch gekennzeichnet, dass die Rollen der Stapeltransportwagen der Stapelebene zugeordnet sind.
- Verfahren zum Bedrucken nach Anspruch 4 und 6, dadurch gekennzeichnet, dass die Linearfördereinheit und/oder der Drehtisch der Unterseite des Stapeltransportwagens zugeordnet sind.
- Verfahren zum Bedrucken nach Anspruch 4 und 6, dadurch gekennzeichnet, dass die Linearfördereinheit der Unterseite des Stapeltransportwagens und die Rollen der Stapeltransportwagen dem Drehtisch zugeordnet sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19644950A DE19644950A1 (de) | 1996-05-24 | 1996-10-29 | Verfahren zum Bedrucken |
DE19644950 | 1996-10-29 | ||
PCT/DE1997/002535 WO1998018624A1 (de) | 1996-10-29 | 1997-10-28 | Verfahren zum bedrucken |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0939699A1 EP0939699A1 (de) | 1999-09-08 |
EP0939699B1 true EP0939699B1 (de) | 2001-12-19 |
Family
ID=7810324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97948698A Expired - Lifetime EP0939699B1 (de) | 1996-10-29 | 1997-10-28 | Verfahren zum bedrucken |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0939699B1 (de) |
WO (1) | WO1998018624A1 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE554237C (de) * | 1931-07-11 | 1932-07-06 | Vogtlaendische Maschinenfabrik | Vorrichtung zum Strecken der Bogen vor dem Druck bei Mehrfarbendruckmaschinen fuer Bogen |
US4181078A (en) * | 1977-12-08 | 1980-01-01 | Am International, Inc. | Automatic recirculating duplicator |
JPS58118254A (ja) * | 1982-01-07 | 1983-07-14 | Toppan Printing Co Ltd | 裏面刷り用枚葉オフセツト印刷機 |
NL8503006A (nl) * | 1985-11-04 | 1987-06-01 | Oce Nederland Bv | Werkwijze en inrichting voor het afdrukken van beelden op helften van beide zijden van bladen. |
JP3028570B2 (ja) * | 1990-08-24 | 2000-04-04 | ソニー株式会社 | 両面印刷装置 |
DE19523378A1 (de) * | 1995-06-30 | 1997-01-02 | Koenig & Bauer Albert Ag | Bogenoffsetrotationsdruckmaschine |
-
1997
- 1997-10-28 WO PCT/DE1997/002535 patent/WO1998018624A1/de active IP Right Grant
- 1997-10-28 EP EP97948698A patent/EP0939699B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1998018624A1 (de) | 1998-05-07 |
EP0939699A1 (de) | 1999-09-08 |
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