EP0351366B1 - Combined rotary sheet printing press for papers of value, particularly bank notes - Google Patents

Combined rotary sheet printing press for papers of value, particularly bank notes Download PDF

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Publication number
EP0351366B1
EP0351366B1 EP89810502A EP89810502A EP0351366B1 EP 0351366 B1 EP0351366 B1 EP 0351366B1 EP 89810502 A EP89810502 A EP 89810502A EP 89810502 A EP89810502 A EP 89810502A EP 0351366 B1 EP0351366 B1 EP 0351366B1
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EP
European Patent Office
Prior art keywords
printing
cylinder
sheet
blanket cylinder
drum
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
Application number
EP89810502A
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German (de)
French (fr)
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EP0351366A3 (en
EP0351366A2 (en
Inventor
Albrecht Joseph Germann
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.)
KBA Notasys SA
Original Assignee
De la Rue Giori SA
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Publication date
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Priority to AT89810502T priority Critical patent/ATE98560T1/en
Publication of EP0351366A2 publication Critical patent/EP0351366A2/en
Publication of EP0351366A3 publication Critical patent/EP0351366A3/en
Application granted granted Critical
Publication of EP0351366B1 publication Critical patent/EP0351366B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F11/00—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
    • B41F11/02—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination for securities
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/49—Convertible printing press, e.g. lithographic to letter press

Definitions

  • the invention relates to a combined sheet-fed rotary printing machine for banknotes, in particular banknotes, according to the preamble of patent claim 1.
  • a printing press of this type is known from EP-A-0 132 857, in which the indirectly printing printing unit is set up to produce a multicolored offset print on one sheet side and a multicolored color collective print on the other sheet page.
  • an offset rubber cylinder which is colored by several offset plate cylinders, works together with a second rubber cylinder of the same size, which forms a printing nip with the offset rubber cylinder and is in turn colored by a collective printing plate mounted on a plate cylinder.
  • This collective printing plate has a complete printing pattern and is colored in multiple colors by an ink collecting cylinder which rolls on it and which receives the individual colors from ink selection rollers which interact with it.
  • the second rubber cylinder serves to guide the sheets passing through the printing nip and, for this purpose, cooperates with a transfer drum which feeds the sheets and a transfer drum which takes over the sheets from the rubber cylinder, the circumferential length of the circumferential region of this rubber cylinder covered by an arc between the transfer drum and transfer drum being greater than that is half the cylinder circumference. Therefore, the remaining circumferential area, which is not covered by an arc, and which is available for the installation of plate cylinders interacting with this rubber cylinder, is smaller than half the cylinder circumference and is only sufficient for this in the known machine from installing an additional offset plate cylinder with its inking unit in addition to the plate cylinder carrying the printing plate.
  • the sheets that receive the multi-color offset print on one side and the collective ink print on the other side, supplemented by a single-color offset print, are passed on to a chain gripper system after passing through the transfer drum for further transport. Because of the presence of the ink collecting cylinder, which is located at the same height as the second rubber cylinder, this chain gripper system first runs vertically downwards under the collective printing unit with a slight inclination and then vertically upwards to a drying drum on which one side of the sheet is dried and which is followed by a sheet turning device. The other side of the sheet is dried by drying devices which are arranged along the gripper chain. Furthermore, a device for checking and correcting the register is provided behind the sheet turning device. In addition, this known printing machine has paper dust suction devices in the vicinity of the circumference of the transfer drum.
  • Chain gripper systems when transporting sheets between a first and a second printing unit often impair the exact register accuracy, which is absolutely essential, particularly with banknotes, and therefore generally require a register check and possibly register correction of the sheets before they are printed in the second printing unit.
  • the indirectly printing printing unit of this known printing press consists of a rubber cylinder colored by a plurality of offset plate cylinders and a printing cylinder interacting with it and therefore allows only one of the sheet sides to be printed.
  • the transfer drum and the transfer drum work together with the printing cylinder, the sheet grippers of which take over a sheet from the transfer drum and take it along against the circumference of the printing cylinder until they are gripped by the grippers of the transfer drum.
  • the circumferential area between the transfer drum and the transfer drum, in which the sheet is carried on the impression cylinder, is considerably larger than half the impression cylinder circumference.
  • the transfer drum also functions as a sheet turning drum of a sheet turning device and is therefore of a size corresponding to the length of two sheets, so that its diameter is twice as large as the diameter of the plate cylinder and the transfer drum, which are usually of a size corresponding to a single sheet, while the blanket cylinder and the impression cylinder are adapted to the format of three sheets and therefore have a diameter three times as large as the plate cylinder and the transfer drum.
  • the sheet transport device in the known combined printing press consists of a sheet turning drum which interacts with the printing cylinder of the indirectly printing printing unit and functions as a transfer drum, a small drum belonging to the sheet turning device which is adapted to the size of a sheet, a drying drum which is twice as large, in the vicinity of which a drying device is arranged, a register drum correcting the register and a transport drum which transfers the sheets to the printing cylinder of the intaglio printing unit and whose size, like the size of the register drum, corresponds to the size of a sheet.
  • one and the same sheet side can either be printed with a multicolor offset print and with a multicolor steel engraving print, without turning the sheets, or, when the sheets are turned, the one sheet side is a multicolor offset print and the other sheet side is a multicolor - received steel engraving print.
  • EP-A-0 133 328 discloses an indirectly printing perfecting machine which essentially corresponds to the indirect printing unit of the known combined printing machine described first.
  • the sheet is fed to one of the two interacting rubber cylinders via two practically vertically stacked transfer drums of the same size, and a paper dust suction device is installed near each of the two transfer drums.
  • the paper web passing through the printing nip does not need to be taken over by grippers of one of the two rubber cylinders, as in the case of sheets, and guided along a certain circumferential area of this rubber cylinder, so that all the problems and disadvantages associated with the presence of a transfer drum and a transfer drum omitted; the difficulties associated with register-based further transport of sheets also do not arise.
  • EP-A-0-092 887 discloses a convertible rotary printing press which is set up to produce a multicolored print image on a paper page and which can optionally assume an offset printing position or a collective printing position.
  • Another convertible rotary printing press in the form of a perfecting press is described in EP-A-0 132 859 and allows either a multicolored offset print or a color collective print to be produced on each of the two paper sides.
  • two further rubber cylinders are provided, which form the actual perfecting and impression cylinders, between which the paper to be printed runs and which of each of the two first-mentioned rubber cylinders either directly or via the collective printing plate mounted on a plate cylinder are colored. All four large rubber cylinders are approximately horizontally next to each other.
  • the present invention has for its object to design a combined sheet-fed rotary printing press of the type described in the preamble of claim 1, without a chain gripper system between the two printing units, with a known, but expediently modified, sheet transport device in such a way that the non-indirect printing unit the free circumferential area of the second blanket cylinder covered by an arc is enlarged to such an extent that a greater number of offset plate cylinders with their inking units than previously possible can be installed along this circumferential area, so that a multicolored image originating from the second blanket cylinder is obtained during perfecting can be, which has more colors than before.
  • these multicolor prints are preferably each a multicolor security background, which is supplemented on one side of the sheet in the intaglio printing unit by a multicolor steel engraving print representing the main pattern.
  • a main pattern can also be produced on the back in that at least one of the plate cylinders of the indirectly printing printing unit is equipped with a wet offset printing plate having a main pattern, preferably in the form of a moistened gravure printing plate.
  • the combined sheet-fed rotary printing press consists of an indirectly printing printing unit A, through which the sheets first pass, a downstream sheet transport device B, which is composed exclusively of drums, and an intaglio printing unit C, into which the sheets arrive at the end of the transport device B.
  • the indirectly printing printing unit A which is a printing unit working in perfecting, has two interacting, vertically superimposed rubber cylinders 3 and 5, each with a plurality of plate cylinders 12, 15 and 7, 10 in, respectively, carrying offset printing plates Stand in touch and between which the sheets are printed simultaneously on both sides.
  • the sheets reach the rubber cylinder 3 via a plurality of transport drums 1 and a transfer drum 2 cooperating with the rubber cylinder 3, from the sheet grippers of which they are carried along.
  • the direction of rotation of the two rubber cylinders 3 and 5 is indicated by arrows.
  • a sheet entrained by the rubber cylinder 3 After a sheet entrained by the rubber cylinder 3 has passed the pressure point between the two rubber cylinders, it is transferred from a transfer drum 18 which interacts with the rubber cylinder 3 detected, which represents the first transport drum of the sheet transport device B.
  • the circumferential area between the transfer drum 2 and the transfer drum 18, in which an arc is carried by the rubber cylinder 3, is at most as large as half its circumference and extends in the example under consideration over approximately 135 °. In general, it is advantageous if this circumferential region extends over an angle of less than approximately 150 °.
  • the transfer drum 18 has the same diameter as the transfer drum 2 and the plate cylinders 7, 10 and 12, 15, which, as usual, are small cylinders with only one pressure plate, the circumferential length of which is adapted to the size of a sheet.
  • the rubber cylinders 3 and 5 are designed to hold three sheets each and are therefore three times as large.
  • the free upper circumferential area of the blanket cylinder 3, which is not covered by an arc, is at least as large as half the circumference of the cylinder; in the example considered, it extends over approximately 225 ° and offers sufficient space for accommodating a plurality of plate cylinders, in the example considered four plate cylinders, of which, according to FIG. 1, the two plate cylinders 12 to the right of the vertical center line and the two plate cylinders 15 to the left of the vertical center line of the rubber cylinder 3 are arranged.
  • the plate cylinders 12 and 15 carry wet offset plates. These are inked by a respective inking unit 13 or 16 and by a dampening unit 13 'or 16' moistened.
  • the inking units 13 and the dampening units 13 ' are housed in an inking unit frame 14, the inking units 16 and the dampening units 16' in an inking unit frame 17.
  • the other rubber cylinder 5 works together with four plate cylinders carrying offset printing plates, of which, according to FIG. 1, three plate cylinders 7 are installed to the right of the vertical center line and one plate cylinder 10 to the left of the vertical center line of the rubber cylinder 5. Again, it is assumed that these plate cylinders have wet offset plates.
  • the three plate cylinders 7 work with inking units 8 and dampening units 8 'in a removable inking unit frame 9, while the plate cylinder 10 works with an inking unit 11 and a dampening unit 11'.
  • paper dust suction devices 32 are also provided in the vicinity of the circumference of the transfer drum 2 and the preceding transport drum 1; these suction devices acting on one and the other sides of the sheet can also be arranged in the vicinity of the circumference of at least two successive transport drums 1.
  • automatically operating blanket washing devices 4 and 6 are also provided, which of course assume an out-of-operation position moved away from the blanket cylinders during the printing operation of the printing unit.
  • the transport device B has nine transport drums, namely the transfer drum 18, one drum 19, four drums 20, in the circumferential vicinity of which drying devices 21 for drying both printed sheet sides are arranged, a sheet turning drum 22 belonging to a sheet turning device, a drum 23 which functions as a register drum and at the same time as part of the sheet turning device, and a further drum 24 which feeds the sheets into the intaglio printing unit C.
  • the drums 18, 19, 20, 23 and 24 all have the same size adapted to an arc, while the sheet turning drum 22 is adapted to the size of two arcs and therefore has a diameter twice as large
  • This sheet turning device is known and its function is explained for example in EP-B 0 136 972. If a sheet, which is located on the drum 22 rotating in the direction of the arrow, is not to be turned, then it is taken over directly by the drum 23 in the usual manner, in that its grippers grip the leading edge of the sheet arriving on the drum 22. In the event of a sheet turning, the sheet, after it has completely passed the gap between the drums 22 and 23, is gripped at its rear edge by the grippers, which are pivotably mounted on the drum 23 and controlled accordingly, and are drawn onto the drum 23 in the direction of the straight arrow F. , with the previous trailing edge of the sheet becoming the leading edge of the sheet which is simultaneously released by the grippers of the drum 22.
  • the drum 23 In its function as a register drum, the drum 23 ensures that any deviations in the sheet positions from the exact register are corrected.
  • Such a system for register correction and its function are described in the aforementioned EP-B 0 136 972.
  • all the drums of the transport device B and the transfer drum 2 and the transport drums 1 arranged in front of them are at least approximately horizontally next to one another or in a horizontal plane.
  • the intaglio printing unit C consists of a printing cylinder 25, on which the sheets from the transport drum 24 arrive, a plate cylinder 26, which cooperates with the printing cylinder 25 and carries engraving printing plates, four stencil rollers 27, which are colored by inking units 28 with different colors, and the engraving printing plates on the Color plate cylinder 26 and from a wiper device 30. All inking units 28 are installed in a removable inking unit frame 29. The sheets printed in the engraving printing unit C are then taken over by a transport system 31, in particular a chain gripper system.
  • banknotes can be provided on both sides with a four-color offset print, which represents a security background, and also on one of their sides, depending on the setting of the sheet turning device, with a four-color steel engraving print as the main pattern.
  • the other sheet side in the printing unit A can also be provided with a main pattern, for which purpose one of the plate cylinders is used, which in this case is preferably provided with a gravure printing plate having a main pattern, the surface of which outside the recesses is moistened by the corresponding dampening unit, so that it is at the color of the printing plate does not take on any color.
  • the printing machine according to FIG. 2 differs from that according to FIG. 1 in that the transport drums 1 according to FIG. 1 are replaced by another known sheet feed system 33, for example by sheet transport belts. At the end of this sheet transport system 33, the sheets reach the rubber cylinder 3 via a stop drum 33a and a transfer drum 2.
  • Another difference from the printing machine according to FIG. 1 is that in the upper inking unit frame 14 of the indirectly printing printing unit A only one plate cylinder 12 with its inking unit, however, three plate cylinders 15 with their inking units are installed in the other inking unit frame 17. In this printing machine, the circumferential region of the blanket cylinder 3, through which an arc runs, extends over an angle of approximately 145 °. All other components of the indirectly printing printing unit A, the sheet transport device B and the intaglio printing unit C are the same as in the exemplary embodiment according to FIG. 1.
  • the lower half of the indirectly printing printing unit A prints according to the collective printing process, also known as the Orlof process, while the upper half, as in the example according to FIGS. 1 and 2, prints according to the offset printing process.
  • the sheet feed system 33 with the stop drum 33a, from which the sheets reach the transfer drum 2 corresponds to that of the printing machine according to FIG. 2.
  • the sheet transport device B only four small transport drums are provided in front of the sheet turning drum 22, namely the transfer drum 18 and the following three drums 20, wherein drying devices 21 are arranged in the vicinity of all four small drums.
  • the remaining parts of the sheet transport device B and the intaglio printing unit C correspond to the exemplary embodiments according to FIGS. 1 and 2.
  • the lower half of the indirectly printing printing unit A according to FIG. 3 is designed as follows to carry out color collective printing on one sheet side:
  • the two rubber cylinders 3 and 5 have moved away from each other.
  • the plate cylinder 10 abutting the blanket cylinder 5 carries a complete printing plate having a complete printing pattern.
  • an additional small cylinder in the form of an image transfer cylinder 34 is provided, which bears against both the plate cylinder 10 and the rubber cylinder 3.
  • four plate cylinders 7 are arranged to the right of the vertical center line of the rubber cylinder 5, which carry color selection plates, which are colored by inking units 8 with different colors.
  • a dampening unit 8 ' is again provided in each inking unit 8, which moistens it when using a wet offset printing plate.
  • the color selection plates have cut-out reliefs, each of which is colored and correspond to the areas of the collecting printing plate to be printed in a specific color, and transfer a multicolor image with adjacent colors to the rubber cylinder 5, which acts as an ink collecting cylinder, which in turn colors the collecting printing plate on the plate cylinder 10.
  • the multicolor image of this colored collective printing plate is transferred to the sheet by means of the image transfer cylinder 34, which passes between the blanket cylinder 3 and the image transfer cylinder 34.
  • the collecting printing plate preferably consists of a high-pressure plate, but can also consist of a wet offset printing plate, in which case this printing plate is moistened by a dampening system which, seen in the direction of rotation of the plate cylinder 10, behind the point of contact with the image transfer cylinder 34 and in front of the point of contact is arranged with the rubber cylinder 5.
  • the rubber cylinder 5 is arranged somewhat outwards relative to the rubber cylinder 3 lying above it, that is to say offset slightly to the right according to FIG. This results in space on the circumference of the rubber cylinder 5, to the right of its vertical center line, for the installation of four plate cylinders 7 carrying four color selection plates, so that the rubber cylinder 5 cooperates with a total of five plate cylinders in this exemplary embodiment.
  • the sheet feed to the blanket cylinder 3 is offset somewhat upwards compared to the printing presses according to FIGS. 1 and 2, and therefore the circumferential area of the blanket cylinder 3 between the transfer drum 2 and the transfer drum 18, through which an arc runs, is somewhat larger; in the example considered, it is equal to half the cylinder circumference, but could also be made somewhat smaller if necessary.
  • the circumferential area of the blanket cylinder 3 between the transfer drum 2 and the transfer drum 18, through which an arc runs is somewhat larger; in the example considered, it is equal to half the cylinder circumference, but could also be made somewhat smaller if necessary.
  • In the upper free peripheral area of the blanket cylinder 3 are three plate cylinders, namely a plate cylinder 12 with its inking unit 13 in the inking unit frame 14 to the right of the vertical center line and two plate cylinders 15 to the left of the vertical center line with their inking units 16 in the inking unit frame 17.
  • the sheets are thus given a three-color offset print on one side and a four-color collective print on their other side as they pass through the printing gap between the blanket cylinder 3 and the image transfer cylinder 34.
  • the offset printing method providing images with overlapping colors
  • the collective printing method providing images with adjacent colors.
  • FIGS. 4 to 6 show a further exemplary embodiment of a printing press in which the indirectly printing printing unit A can be converted and can assume three different printing positions.
  • the printing machine according to FIGS. 4 to 6 has the same sheet transport device B, the same intaglio printing unit C and an essentially identical printing unit A as the printing machine according to FIG. 3 which has already been described.
  • the same parts are identified by the same reference numerals.
  • the rubber cylinder 5 is adjustable between an offset printing position (FIGS. 5 and 6) and a collective printing position (FIG. 4), that the image transfer cylinder 34 is between a working position in which it rests against both the rubber cylinder 3 and the plate cylinder 10. and an out-of-operation position moved away from these two cylinders is adjustable, that the plate cylinder 10 is also adjustable, has an assigned inking unit 11 and either one Offset printing plate ( Figures 5 and 6) or a collective printing plate ( Figure 4) and that finally the plate cylinder 7 touching the blanket cylinder 5 either carry offset printing plates ( Figures 5 and 6) or color selection plates ( Figure 4).
  • the sheet feed system 33 with the stop drum 33a is the same as in the printing machine according to FIG. 3.
  • the blanket cylinder 5 is in turn associated with four plate cylinders 7 with their inking units 8, which are to the right of the vertical center line of the blanket cylinder 5.
  • the rubber cylinder 3 is in turn, as in the printing machine according to Figure 3, colored by three offset plate plate cylinders 12 and 15.
  • the rubber cylinder 5 has moved away from the rubber cylinder 3; the plate cylinder 10 bears the complete printing plate having a complete printing pattern, rests on the blanket cylinder 5 and is separated from the inking unit 11 assigned to it, which can be done, for example, simply by switching off the adjacent inking rollers or transfer rollers.
  • the image transfer cylinder 34 assumes its working position.
  • the four plate cylinders 7 carry color selection plates.
  • the collective print position according to FIG. 4 and the collective print image generated correspond exactly to the configuration of the described printing press according to FIG. 3 and the collective print image obtained there.
  • the rubber cylinder 5 is pressed against the rubber cylinder 3, as in the case of the printing machine according to FIG. 1; the plate cylinder 10 carries one of the employed inking unit 11 inked offset printing plate, lies against the rubber cylinder 5 and dyes this.
  • the plate cylinders 7 are also provided with offset printing plates.
  • the image transfer cylinder 34 assumes its inoperative position, in which it has moved away from both the plate cylinder 10 and the blanket cylinder 3. In this case, the sheet passing the printing nip between the printing cylinders 3 and 5 is provided with a three-color offset print on its upper side and with a five-color offset print on its lower side.
  • FIG. 6 shows a further offset printing position of the printing unit A, in which the rubber cylinders 3 and 5 are in turn pressed against one another, but the plate cylinder 10 has moved away from the rubber cylinder 5 and interacts with the image transfer cylinder 34 which assumes its working position and which is pressed against the rubber cylinder 3.
  • the plate cylinder 10 carries an offset printing plate colored by the employed inking unit 11, the image of which is transferred to the sheet by means of the image transfer cylinder 34.
  • the four plate cylinders 7 carry the offset printing plates that color the blanket cylinder 5.
  • a sheet first receives a three-color offset print in the printing nip between the rubber cylinders 3 and 5 on its upper side and a four-color offset print on its lower side, and then a further single-color offset print on its lower side through the image transfer cylinder 34.
  • the invention is not limited to the exemplary embodiments described, but rather allows for the number and exact arrangement of the the blanket cylinders 3 and 5 interacting plate cylinders, the construction of the sheet transport device composed of drums and the construction of the intaglio printing unit.

Abstract

The printing machine is composed of an indirectly printing printing unit (A), and a sheet transport device (B), composed solely of drums (18, 19, 20, 22, 23, 24), and of a following intaglio printing unit (C). The indirectly printing printing unit (A) has two interacting blanket cylinders (3, 5), each of which is inked with several colors by several plate cylinders (12, 15; 7, 10). The sheets are passed onto one of the blanket cylinders (3) from a carry-over drum (2) and, after passing through the nip between two blanket cylinders (3, 5), thereby being printed on both sides, are taken over by a transfer drum (18) of the sheet transport device. The circumferential region which is located between the carry-over drum (2) and transfer drum (8) and over which the sheet passes extends over at most 180 DEG , preferably less than 150 DEG , so that that free circumferential region of this blanket cylinder not covered by the sheet is available for accommodating several plate cylinders.

Description

Die Erfindung bezieht sich auf eine kombinierte Bogenrotationsdruckmaschine für Wertscheine, insbesondere Banknoten, gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to a combined sheet-fed rotary printing machine for banknotes, in particular banknotes, according to the preamble of patent claim 1.

Eine Druckmaschine dieser Art ist aus der EP-A-0 132 857 bekannt, bei welcher das indirekt druckende Druckwerk dazu eingerichtet ist, auf der einen Bogenseite einen mehrfarbigen Offsetdruck und auf der anderen Bogenseite einen mehrfarbigen Farbsammeldruck zu erzeugen. Zu diesem Zwecke arbeitet ein Offset-Gummizylinder, der durch mehrere Offsetplattenzylinder eingefärbt wird, mit einem gleich grossen zweiten Gummizylinder zusammen, welcher mit dem Offset-Gummizylinder einen Druckspalt bildet und seinerseits von einer auf einem Plattenzylinder montierten Sammeldruckplatte eingefärbt wird. Diese Sammeldruckplatte weist ein vollständiges Druckmuster auf und wird von einem an ihr abrollenden Farbsammelzylinder mehrfarbig eingefärbt, welcher die einzelnen Farben von mit ihm zusammenwirkenden Farbselektionswalzen erhält. Der zweite Gummizylinder dient zur Führung der den Druckspalt passierenden Bogen und wirkt zu diesem Zwecke mit einer die Bogen zuführenden Ueberführungstrommel und einer die Bogen vom Gummizylinder übernehmenden Uebergabetrommel zusammen, wobei die Umfangslänge des von einem Bogen bedeckten Umfangsbereichs dieses Gummizylinders zwischen Ueberführungstrommel und Uebergabetrommel grösser als der halbe Zylinderumfang ist. Daher ist der verbleibende, nicht von einem Bogen bedeckte Umfangsbereich, der zur Installation von mit diesem Gummizylinder zusammenwirkenden Plattenzylindern zur Verfügung steht, kleiner als der halbe Zylinderumfang und reicht bei der bekannten Maschine lediglich dazu aus, ausser dem die Sammeldruckplatte tragenden Plattenzylinder einen zusätzlichen Offsetplattenzylinder mit seinem Farbwerk zu installieren. Die Bogen, die beim Passieren des Druckspalts auf der einen Seite den mehrfarbigen Offsetdruck und auf der anderen Seite den Farbsammeldruck, ergänzt durch einen einfarbigen Offsetdruck, erhalten, werden nach Passieren der Uebergabetrommel zum Weitertransport von einem Kettengreifersystem übernommen. Dieses Kettengreifersystem verläuft wegen der Gegenwart des in gleicher Höhe wie der zweite Gummizylinder befindlichen Farbsammelzylinders zunächst unter leichter Neigung vertikal abwärts unter dem Sammeldruckwerk hindurch und dann vertikal aufwärts zu einer Trocknungstrommel, auf der eine Bogenseite getrocknet wird und welcher eine Bogenwendevorrichtung nachgeschaltet ist. Die andere Bogenseite wird durch Trocknungsvorrichtungen getrocknet, die längs der Greiferkette angeordnet sind. Ferner ist hinter der Bogenwendevorrichtung eine Vorrichtung zur Kontrolle und Korrektur des Registers vorgesehen. Ausserdem weist diese bekannte Druckmaschine in Umfangsnähe der Ueberführungstrommel Papierstaub-Absaugvorrichtungen auf.A printing press of this type is known from EP-A-0 132 857, in which the indirectly printing printing unit is set up to produce a multicolored offset print on one sheet side and a multicolored color collective print on the other sheet page. For this purpose, an offset rubber cylinder, which is colored by several offset plate cylinders, works together with a second rubber cylinder of the same size, which forms a printing nip with the offset rubber cylinder and is in turn colored by a collective printing plate mounted on a plate cylinder. This collective printing plate has a complete printing pattern and is colored in multiple colors by an ink collecting cylinder which rolls on it and which receives the individual colors from ink selection rollers which interact with it. The second rubber cylinder serves to guide the sheets passing through the printing nip and, for this purpose, cooperates with a transfer drum which feeds the sheets and a transfer drum which takes over the sheets from the rubber cylinder, the circumferential length of the circumferential region of this rubber cylinder covered by an arc between the transfer drum and transfer drum being greater than that is half the cylinder circumference. Therefore, the remaining circumferential area, which is not covered by an arc, and which is available for the installation of plate cylinders interacting with this rubber cylinder, is smaller than half the cylinder circumference and is only sufficient for this in the known machine from installing an additional offset plate cylinder with its inking unit in addition to the plate cylinder carrying the printing plate. The sheets that receive the multi-color offset print on one side and the collective ink print on the other side, supplemented by a single-color offset print, are passed on to a chain gripper system after passing through the transfer drum for further transport. Because of the presence of the ink collecting cylinder, which is located at the same height as the second rubber cylinder, this chain gripper system first runs vertically downwards under the collective printing unit with a slight inclination and then vertically upwards to a drying drum on which one side of the sheet is dried and which is followed by a sheet turning device. The other side of the sheet is dried by drying devices which are arranged along the gripper chain. Furthermore, a device for checking and correcting the register is provided behind the sheet turning device. In addition, this known printing machine has paper dust suction devices in the vicinity of the circumference of the transfer drum.

Kettengreifersysteme beim Transport von Bogen zwischen einem ersten und einem zweiten Druckwerk beeinträchtigen häufig die exakte Registerhaltigkeit, die insbesondere bei Banknoten unbedingt erforderlich ist, und erfordern daher im allgemeinen eine Registerkontrolle und eventuell Registerkorrektur der Bogen, bevor diese im zweiten Druckwerk bedruckt werden.Chain gripper systems when transporting sheets between a first and a second printing unit often impair the exact register accuracy, which is absolutely essential, particularly with banknotes, and therefore generally require a register check and possibly register correction of the sheets before they are printed in the second printing unit.

Eine andere bekannte kombinierte Bogenrotationsdruckmaschine, welche ohne Kettengreifersysteme zwischen den beiden Druckwerken arbeitet, ist in der EP-B 0 136 972 beschrieben. Das indirekt druckende Druckwerk dieser bekannten Druckmaschine besteht aus einem von mehreren Offsetplattenzylindern eingefärbten Gummizylinder und einem mit diesem zusammenwirkenden Druckzylinder und erlaubt daher nur eine der Bogenseiten zu bedrucken. Ueberführungstrommel und Uebergabetrommel arbeiten mit dem Druckzylinder zusammen, dessen Bogengreifer einen Bogen von der Ueberführungstrommel übernehmen und ihn unter Anlage am Druckzylinderumfang bis zum Erfassen durch die Greifer der Uebergabetrommel mitnehmen. Dabei ist der zwischen Ueberführungstrommel und Uebergabetrommel liegende Umfangsbereich, in welchem der Bogen auf dem Druckzylinder mitgenommen wird, wesentlich grösser als der halbe Druckzylinderumfang. Ausserdem fungiert die Uebergabetrommel gleichzeitig als Bogenwendetrommel einer Bogenwendevorrichtung und hat aus diesem Grunde eine der Länge zweier Bogen entsprechende Grösse, so dass ihr Durchmesser doppelt so gross ist wie der Durchmesser der Plattenzylinder und der Ueberführungstrommel, welche üblicherweise eine einem einzigen Bogen entsprechende Grösse haben, während der Gummizylinder und der Druckzylinder dem Format dreier Bogen angepasst sind und daher einen dreimal so grossen Durchmesser aufweisen wie die Plattenzylinder und die Ueberführungstrommel.Another known combined sheet-fed rotary printing press, which works without chain gripper systems between the two printing units, is described in EP-B 0 136 972. The indirectly printing printing unit of this known printing press consists of a rubber cylinder colored by a plurality of offset plate cylinders and a printing cylinder interacting with it and therefore allows only one of the sheet sides to be printed. The transfer drum and the transfer drum work together with the printing cylinder, the sheet grippers of which take over a sheet from the transfer drum and take it along against the circumference of the printing cylinder until they are gripped by the grippers of the transfer drum. The circumferential area between the transfer drum and the transfer drum, in which the sheet is carried on the impression cylinder, is considerably larger than half the impression cylinder circumference. In addition, the transfer drum also functions as a sheet turning drum of a sheet turning device and is therefore of a size corresponding to the length of two sheets, so that its diameter is twice as large as the diameter of the plate cylinder and the transfer drum, which are usually of a size corresponding to a single sheet, while the blanket cylinder and the impression cylinder are adapted to the format of three sheets and therefore have a diameter three times as large as the plate cylinder and the transfer drum.

Die Bogentransportvorrichtung bei der bekannten kombinierten Druckmaschine besteht, wie erwähnt, aus einer mit dem Druckzylinder des indirekt druckenden Druckwerks zusammenwirkenden Bogenwendetrommel, die als Uebergabetrommel fungiert, einer zur Bogenwendevorrichtung gehörenden kleinen Trommel, die der Grösse eines Bogens angepasst ist, einer doppelt so grossen Trocknungstrommel, in deren Umfangsnähe eine Trocknungseinrichtung angeordnet ist, einer das Register korrigierenden Registertrommel sowie einer Transporttrommel, welche die Bogen auf den Druckzylinder des Stichtiefdruckwerks übergibt und deren Grösse, ebenso wie die Grösse der Registertrommel, der Grösse eines Bogens entspricht. Da diese Transportvorrichtung, unter Verzicht auf Kettengreifersysteme, nur mit zusammenwirkenden Trommeln arbeitet, bei denen der Bogen von einer Trommel unmittelbar auf die folgende Trommel gelangt, wird während des gesamten Bogentransports zwischen dem indirekt druckenden Druckwerk und dem Stichtiefdruckwerk ein vollkommenes Register mit grosser Zuverlässigkeit aufrechterhalten, so dass im allgemeinen eine eventuelle Registerkorrektur allenfalls nach einer Bogenwendung erforderlich und dann automatisch von der Registertrommel durchgeführt wird.As mentioned, the sheet transport device in the known combined printing press consists of a sheet turning drum which interacts with the printing cylinder of the indirectly printing printing unit and functions as a transfer drum, a small drum belonging to the sheet turning device which is adapted to the size of a sheet, a drying drum which is twice as large, in the vicinity of which a drying device is arranged, a register drum correcting the register and a transport drum which transfers the sheets to the printing cylinder of the intaglio printing unit and whose size, like the size of the register drum, corresponds to the size of a sheet. Since this transport device, without the need for chain gripper systems, only works with interacting drums, in which the sheet passes directly from one drum to the following drum, a perfect register is maintained with great reliability during the entire sheet transport between the indirectly printing printing unit and the intaglio printing unit. so that a possible register correction is generally necessary after a sheet has been turned and is then carried out automatically by the register drum.

Mit der erwähnten bekannten Druckmaschine kann entweder, ohne Wendung der Bogen, ein und dieselbe Bogenseite mit einem Mehrfarben-Offsetdruck und mit einem Mehrfarben-Stahlstichdruck bedruckt werden oder, bei Wendung der Bogen, die eine Bogenseite einen Mehrfarben-Offsetdruck und die andere Bogenseite einen Mehrfarben-Stahlstichdruck erhalten.With the known printing machine mentioned, one and the same sheet side can either be printed with a multicolor offset print and with a multicolor steel engraving print, without turning the sheets, or, when the sheets are turned, the one sheet side is a multicolor offset print and the other sheet side is a multicolor - received steel engraving print.

Durch die EP-A-0 133 328 ist eine indirekt druckende Schön- und Widerdruckmaschine bekannt, die im wesentlichen dem indirekten Druckwerk der zuerst beschriebenen bekannten kombinierten Druckmaschine entspricht. Hierbei erfolgt die Bogenzuführung zum einen der beiden zusammenwirkenden Gummizylinder über zwei praktisch vertikal übereinander angeordnete Ueberführungstrommeln gleicher Grösse, und in der Nähe jeder der beiden Ueberführungstrommeln ist je eine Papierstaub-Absaugvorrichtung installiert.EP-A-0 133 328 discloses an indirectly printing perfecting machine which essentially corresponds to the indirect printing unit of the known combined printing machine described first. Here, the sheet is fed to one of the two interacting rubber cylinders via two practically vertically stacked transfer drums of the same size, and a paper dust suction device is installed near each of the two transfer drums.

Bei Rollendruckmaschinen, wie sie in der EP-A-0 185 421 beschrieben werden, ist es bekannt, zwei einen Druckspalt bildende Gummizylinder vorzusehen, welche beide von jeweils mehreren Offsetplattenzylindern eingefärbt werden, so dass die den Druckspalt passierende Papierbahn gleichzeitig auf beiden Seiten einen mehrfarbigen Offsetdruck erhält. Dabei können die beiden zusammenwirkenden Gummizylinder entweder senkrecht übereinander oder horizontal nebeneinander angeordnet sein. Bei Rollendruckmaschinen braucht jedoch die den Druckspalt passierende Papierbahn nicht, wie im Falle von Bogen, von Greifern eines der beiden Gummizylinder übernommen und längs eines gewissen Umfangsbereichs dieses Gummizylinders geführt zu werden, so dass alle mit der Gegenwart einer Ueberführungstrommel und einer Uebergabetrommel zusammenhängenden Probleme und Nachteile entfallen; ebensowenig treten die mit einem registerhaltigen Weitertransport von Bogen zusammenhängenden Schwierigkeiten auf.In web printing machines, as described in EP-A-0 185 421, it is known to provide two rubber cylinders forming a printing nip, both of which are colored by a plurality of offset plate cylinders, so that the paper web passing through the printing nip simultaneously has a multicolored one on both sides Receives offset printing. The two interacting rubber cylinders can either be arranged vertically one above the other or horizontally next to one another. In web printing machines, however, the paper web passing through the printing nip does not need to be taken over by grippers of one of the two rubber cylinders, as in the case of sheets, and guided along a certain circumferential area of this rubber cylinder, so that all the problems and disadvantages associated with the presence of a transfer drum and a transfer drum omitted; the difficulties associated with register-based further transport of sheets also do not arise.

Aus der EP-A-0-092 887 ist eine zur Erzeugung eines mehrfarbigen Druckbildes auf einer Papierseite eingerichtete, konvertierbare Rotationsdruckmaschine bekannt, die wahlweise eine Offsetdruckstellung oder eine Sammeldruckstellung einnehmen kann.EP-A-0-092 887 discloses a convertible rotary printing press which is set up to produce a multicolored print image on a paper page and which can optionally assume an offset printing position or a collective printing position.

Eine andere konvertierbare Rotationsdruckmaschine in Form einer Schön- und Widerdruckmaschine ist in der EP-A-0 132 859 beschrieben und erlaubt wahlweise auf jeder der beiden Papierseiten entweder einen mehrfarbigen Offsetdruck oder einen Farbsammeldruck zu erzeugen. Zu diesem Zwecke sind ausser den beiden, mit den Offsetplattenzylindern bzw. den Farbselektionswalzen zusammenwirkenden Gummizylindern zwei weitere, die eigentlichen Schön- und Widerdruckzylinder bildende Gummizylinder vorgesehen, zwischen denen das zu bedruckende Papier verläuft und welche von je einem der beiden ersterwähnten Gummizylinder entweder direkt oder über die auf einem Plattenzylinder montierte Sammeldruckplatte eingefärbt werden. Alle vier grossen Gummizylinder liegen näherungsweise horizontal nebeneinander.Another convertible rotary printing press in the form of a perfecting press is described in EP-A-0 132 859 and allows either a multicolored offset print or a color collective print to be produced on each of the two paper sides. For this purpose, in addition to the two rubber cylinders interacting with the offset plate cylinders and the ink selection rollers, two further rubber cylinders are provided, which form the actual perfecting and impression cylinders, between which the paper to be printed runs and which of each of the two first-mentioned rubber cylinders either directly or via the collective printing plate mounted on a plate cylinder are colored. All four large rubber cylinders are approximately horizontally next to each other.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine kombinierte Bogenrotationsdruckmaschine der im Oberbegriff des Anspruchs 1 beschriebenen Art, unter Verzicht auf ein Kettengreifersystem zwischen beiden Druckwerken, mit einer an sich bekannten, jedoch zweckmässig abgewandelten Bogentransportvorrichtung so zu gestalten, dass im indirekt druckenden Druckwerk der nicht von einem Bogen bedeckte freie Umfangsbereich des zweiten Gummizylinders so weit vergrössert wird, dass längs diese Umfangsbereichs eine grössere Anzahl von Offsetplattenzylindern mit ihren Farbwerken, als bisher möglich, installiert werden kann, so dass beim Schön- und Widerdruck ein vom zweiten Gummizylinder herrührendes mehrfarbiges Bild erhalten werden kann, welches mehr Farben als bisher aufweist.The present invention has for its object to design a combined sheet-fed rotary printing press of the type described in the preamble of claim 1, without a chain gripper system between the two printing units, with a known, but expediently modified, sheet transport device in such a way that the non-indirect printing unit the free circumferential area of the second blanket cylinder covered by an arc is enlarged to such an extent that a greater number of offset plate cylinders with their inking units than previously possible can be installed along this circumferential area, so that a multicolored image originating from the second blanket cylinder is obtained during perfecting can be, which has more colors than before.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

Dadurch wird erreicht, dass am freien Umfangsbereich des zweiten Gummizylinders insbesondere drei oder vier Offsetplattenzylinder und ihre Farbwerke installiert werden können.This ensures that in particular three or four offset plate cylinders and their inking units can be installed on the free peripheral area of the second blanket cylinder.

Bei diesen Mehrfarbendrucken handelt es sich im Falle von Banknoten vorzugsweise um je einen mehrfarbigen Sicherheitsuntergrund, der auf der einen Bogenseite im Stichtiefdruckwerk durch einen das Hauptmuster darstellenden Mehrfarben-Stahlstichdruck ergänzt wird. Auf diese Weise sind mit dieser Druckmaschine in einem Arbeitsgang vollständige Banknotendrucke herstellbar, bei denen die Vorderseite ein mehrfarbiges Hauptmuster und einen mehrfarbigen Sicherheitsuntergrund und die Rückseite einen mehrfarbigen Sicherheitsuntergrund aufweist, wie das insbesondere bei Banknoten niedriger Werte häufig üblich ist. Darüberhinaus lässt sich jedoch auch auf der Rückseite ein Hauptmuster dadurch erzeugen, dass wenigstens einer der Plattenzylinder des indirekt druckenden Druckwerks mit einer ein Hauptmuster aufweisenden Nassoffsetdruckplatte, vorzugsweise in Form einer angefeuchteten Tiefdruckplatte, ausgerüstet ist.In the case of banknotes, these multicolor prints are preferably each a multicolor security background, which is supplemented on one side of the sheet in the intaglio printing unit by a multicolor steel engraving print representing the main pattern. In this way, with this printing machine, complete banknote prints can be produced in one operation, in which the front side has a multicolored main pattern and a multicolored security background and the back side one has a multicolored security background, as is often the case especially with banknotes of low values. In addition, however, a main pattern can also be produced on the back in that at least one of the plate cylinders of the indirectly printing printing unit is equipped with a wet offset printing plate having a main pattern, preferably in the form of a moistened gravure printing plate.

Zweckmässige Ausgestaltungen der Druckmaschine nach der Erfindung ergeben sich aus den abhängigen Ansprüchen. Eine besonders zweckmässige Ausführungsform, gemäss welcher das indirekt druckende Druckwerk konvertierbar ist und auf der einen Bogenseite je nach Einstellung einen Mehrfarben-Offsetdruck oder einen Mehrfarben-Sammeldruck zu erzeugen erlaubt, wird im Anspruch 10 beschrieben.Appropriate configurations of the printing press according to the invention result from the dependent claims. A particularly expedient embodiment, according to which the indirectly printing printing unit can be converted and, depending on the setting, allows one side of the sheet to produce a multicolor offset print or a multicolor collective print, is described in claim 10.

Die Erfindung wird anhand der Zeichnungen an Ausführungsbeispielen näher erläutert. Es zeigen:

  • Figur 1 ein erstes Ausführungsbeispiel einer kombinierten Bogenrotationsdruckmaschine, in welcher das indirekt druckende Druckwerk beidseitig einen Mehrfarbenoffsetdruck liefert,
  • Figur 2 eine Variante der Druckmaschine nach Figur 1 mit einem anderen Bogenzuführungssystem und anderer Anordnung der Plattenzylinder am oberen Gummizylinder des indirekt druckenden Druckwerks,
  • Figur 3 ein zweites Ausführungsbeispiel, bei dem das indirekt druckende Druckwerk auf einer Bogenseite einen Mehrfarben-Offsetdruck und auf der anderen Bogenseite einen Farbsammeldruck liefert,
  • Figuren 4 bis 6 ein drittes Ausführungsbeispiel, bei welchem das indirekt druckende Druckwerk konvertierbar ist und drei verschiedene Arbeitsstellungen zur Erzielung unterschiedlicher Druckkombinationen einnehmen kann, wobei die untere Druckwerkhälfte gemäss Figur 4 eine Sammeldruckstellung, gemäss Figur 5 eine erste Offsetdruckstellung und gemäss Figur 6 eine zweite Offsetdruckstellung einnimmt.
The invention is explained in more detail with reference to the drawings of exemplary embodiments. Show it:
  • FIG. 1 shows a first exemplary embodiment of a combined sheet-fed rotary printing press, in which the indirectly printing printing unit supplies multicolor offset printing on both sides,
  • 2 shows a variant of the printing machine according to FIG. 1 with a different sheet feeding system and a different arrangement of the plate cylinders on the upper blanket cylinder of the indirectly printing printing unit,
  • Figure 3 shows a second embodiment, in which the indirectly printing unit on one sheet side, a multi-color offset printing and on the other sheet side provides a color batch print,
  • FIGS. 4 to 6 show a third exemplary embodiment in which the indirectly printing printing unit is convertible and can assume three different working positions to achieve different printing combinations, the lower printing unit half according to FIG. 4 being a collective printing position, according to FIG. 5 a first offset printing position and according to FIG. 6 a second offset printing position occupies.

Die kombinierte Bogenrotationsdruckmaschine besteht nach Figur 1 aus einem indirekt druckenden Druckwerk A, das die Bogen zuerst durchlaufen, aus einer nachgeschalteten Bogentransportvorrichtung B, die sich ausschliesslich aus Trommeln zusammensetzt, und aus einem Stichtiefdruckwerk C, in welches die Bogen am Ende der Transportvorrichtung B gelangen.According to FIG. 1, the combined sheet-fed rotary printing press consists of an indirectly printing printing unit A, through which the sheets first pass, a downstream sheet transport device B, which is composed exclusively of drums, and an intaglio printing unit C, into which the sheets arrive at the end of the transport device B.

Das indirekt druckende Druckwerk A, bei dem es sich um ein im Schön- und Widerdruck arbeitendes Druckwerk handelt, weist zwei zusammenwirkende, senkrecht übereinanderliegende Gummizylinder 3 und 5 auf, die jeder mit mehreren, Offsetdruckplatten tragenden Plattenzylindern 12, 15 bzw. 7, 10 in Berührung stehen und zwischen denen die Bogen gleichzeitig auf beiden Seiten bedruckt werden. Ueber mehrere Transporttrommeln 1 und eine mit dem Gummizylinder 3 zusammenwirkende Ueberführungstrommel 2 gelangen die Bogen auf den Gummizylinder 3, von dessen Bogengreifern sie mitgenommen werden. Die Drehrichtung der beiden Gummizylinder 3 und 5 ist durch Pfeile angedeutet. Nachdem ein vom Gummizylinder 3 mitgenommener Bogen die Druckstelle zwischen beiden Gummizylindern passiert hat, wird er von einer mit dem Gummizylinder 3 zusammenwirkenden Uebergabetrommel 18 erfasst, welche die erste Transporttrommel der Bogentransportvorrichtung B darstellt. Der zwischen der Ueberführungstrommel 2 und der Uebergabetrommel 18 liegende Umfangsbereich, in welchem ein Bogen vom Gummizylinder 3 mitgenommen wird, ist höchstens so gross wie dessen halber Umfang und erstreckt sich im betrachteten Beispiel über ungefähr 135°. Allgemein ist es vorteilhaft, wenn sich dieser Umfangsbereich über einen Winkel von weniger als etwa 150° erstreckt.The indirectly printing printing unit A, which is a printing unit working in perfecting, has two interacting, vertically superimposed rubber cylinders 3 and 5, each with a plurality of plate cylinders 12, 15 and 7, 10 in, respectively, carrying offset printing plates Stand in touch and between which the sheets are printed simultaneously on both sides. The sheets reach the rubber cylinder 3 via a plurality of transport drums 1 and a transfer drum 2 cooperating with the rubber cylinder 3, from the sheet grippers of which they are carried along. The direction of rotation of the two rubber cylinders 3 and 5 is indicated by arrows. After a sheet entrained by the rubber cylinder 3 has passed the pressure point between the two rubber cylinders, it is transferred from a transfer drum 18 which interacts with the rubber cylinder 3 detected, which represents the first transport drum of the sheet transport device B. The circumferential area between the transfer drum 2 and the transfer drum 18, in which an arc is carried by the rubber cylinder 3, is at most as large as half its circumference and extends in the example under consideration over approximately 135 °. In general, it is advantageous if this circumferential region extends over an angle of less than approximately 150 °.

Die Uebergabetrommel 18 hat den gleichen Durchmesser wie die Ueberführungstrommel 2 und die Plattenzylinder 7, 10 und 12, 15, welche wie üblich kleine, nur eine Druckplatte tragende Zylinder sind, deren Umfangslänge der Grösse eines Bogens angepasst ist. Die Gummizylinder 3 und 5 sind zur Aufnahme je dreier Bogen bestimmt und daher dreimal so gross.The transfer drum 18 has the same diameter as the transfer drum 2 and the plate cylinders 7, 10 and 12, 15, which, as usual, are small cylinders with only one pressure plate, the circumferential length of which is adapted to the size of a sheet. The rubber cylinders 3 and 5 are designed to hold three sheets each and are therefore three times as large.

Aufgrund der Anordnung und Ausbildung der Ueberführungstrommel 2 und der Uebergabetrommel 18 ist der freie, nicht von einem Bogen bedeckte obere Umfangsbereich des Gummizylinders 3 wenigstens so gross wie der halbe Zylinderumfang; er erstreckt sich im betrachteten Beispiel über etwa 225° und bietet genügend Platz zur Unterbringung mehrerer Plattenzylinder, im betrachteten Beispiel von vier Plattenzylindern, von denen nach Figur 1 die beiden Plattenzylinder 12 rechts der vertikalen Mittellinie und die beiden Plattenzylinder 15 links der vertikalen Mittellinie des Gummizylinders 3 angeordnet sind.Due to the arrangement and design of the transfer drum 2 and the transfer drum 18, the free upper circumferential area of the blanket cylinder 3, which is not covered by an arc, is at least as large as half the circumference of the cylinder; in the example considered, it extends over approximately 225 ° and offers sufficient space for accommodating a plurality of plate cylinders, in the example considered four plate cylinders, of which, according to FIG. 1, the two plate cylinders 12 to the right of the vertical center line and the two plate cylinders 15 to the left of the vertical center line of the rubber cylinder 3 are arranged.

Im betrachteten Beispiel ist angenommen, dass die Plattenzylinder 12 und 15 Nassoffsetplatten tragen. Diese werden von je einem Farbwerk 13 bzw. 16 eingefärbt und von je einem Feuchtwerk 13′ bzw. 16′ angefeuchtet. Die Farbwerke 13 und die Feuchtwerke 13′ sind in einem Farbwerkgestell 14, die Farbwerke 16 und die Feuchtwerke 16′ in einem Farbwerkgestell 17 untergebracht.In the example considered, it is assumed that the plate cylinders 12 and 15 carry wet offset plates. These are inked by a respective inking unit 13 or 16 and by a dampening unit 13 'or 16' moistened. The inking units 13 and the dampening units 13 'are housed in an inking unit frame 14, the inking units 16 and the dampening units 16' in an inking unit frame 17.

Der andere Gummizylinder 5 arbeitet mit vier Offsetdruckplatten tragenden Plattenzylindern zusammen, von denen nach Figur 1 drei Plattenzylinder 7 rechts der vertikalen Mittellinie und ein Plattenzylinder 10 links der vertikalen Mittellinie des Gummizylinders 5 installiert sind. Wiederum ist angenommen, dass diese Plattenzylinder Nassoffsetplatten tragen. Die drei Plattenzylinder 7 arbeiten mit Farbwerken 8 und Feuchtwerken 8′ in einem abfahrbaren Farbwerkgestell 9 zusammen, während der Plattenzylinder 10 mit einem Farbwerk 11 und einem Feuchtwerk 11′ zusammenarbeitet.The other rubber cylinder 5 works together with four plate cylinders carrying offset printing plates, of which, according to FIG. 1, three plate cylinders 7 are installed to the right of the vertical center line and one plate cylinder 10 to the left of the vertical center line of the rubber cylinder 5. Again, it is assumed that these plate cylinders have wet offset plates. The three plate cylinders 7 work with inking units 8 and dampening units 8 'in a removable inking unit frame 9, while the plate cylinder 10 works with an inking unit 11 and a dampening unit 11'.

Nach Figur 1 sind ferner in Umfangsnähe der Ueberführungstrommel 2 und der vorangehenden Transporttrommel 1 Papierstaub-Absaugvorrichtungen 32 vorgesehen; diese auf die einen und die anderen Bogenseiten wirkenden Absaugvorrichtungen können auch in Umfangsnähe von wenigstens zwei aufeinanderfolgenden Transporttrommeln 1 angeordnet sein. Im unteren Umfangsbereich des Gummizylinders 3 und des Gummizylinders 5 sind ferner automatisch arbeitende Gummituch-Waschvorrichtungen 4 bzw. 6 vorgesehen, die natürlich beim Druckbetrieb des Druckwerks eine von den Gummizylindern abgerückte Ausserbetriebsstellung einnehmen.According to FIG. 1, paper dust suction devices 32 are also provided in the vicinity of the circumference of the transfer drum 2 and the preceding transport drum 1; these suction devices acting on one and the other sides of the sheet can also be arranged in the vicinity of the circumference of at least two successive transport drums 1. In the lower circumferential area of the blanket cylinder 3 and the blanket cylinder 5, automatically operating blanket washing devices 4 and 6 are also provided, which of course assume an out-of-operation position moved away from the blanket cylinders during the printing operation of the printing unit.

Die Transportvorrichtung B weist im betrachteten Beispiel neun Transporttrommeln auf, und zwar die Uebertragungstrommel 18, eine Trommel 19, vier Trommeln 20, in deren Umfangsnähe Trocknungsvorrichtungen 21 zum Trocknen beider bedruckten Bogenseiten angeordnet sind, eine zu einer Bogenwendevorrichtung gehörende Bogenwendetrommel 22, eine Trommel 23, die als Registertrommel und gleichzeitig als Teil der Bogenwendevorrichtung fungiert, und eine weitere Trommel 24, welche die Bogen in das Stichtiefdruckwerk C eingibt. Die Trommeln 18, 19, 20, 23 und 24 haben alle die gleiche, einem Bogen angepasste Grösse, während die Bogenwendetrommel 22 der Grösse zweier Bogen angepasst ist und daher einen doppelt so grossen Durchmesser hatIn the example considered, the transport device B has nine transport drums, namely the transfer drum 18, one drum 19, four drums 20, in the circumferential vicinity of which drying devices 21 for drying both printed sheet sides are arranged, a sheet turning drum 22 belonging to a sheet turning device, a drum 23 which functions as a register drum and at the same time as part of the sheet turning device, and a further drum 24 which feeds the sheets into the intaglio printing unit C. The drums 18, 19, 20, 23 and 24 all have the same size adapted to an arc, while the sheet turning drum 22 is adapted to the size of two arcs and therefore has a diameter twice as large

Diese Bogenwendevorrichtung ist bekannt und ihre Funktion wird beispielsweise in der EP-B 0 136 972 erläutert. Wenn ein Bogen, welcher sich auf der im Sinne des Pfeils rotierenden Trommel 22 befindet, nicht gewendet werden soll, dann wird er in üblicher Weise unmittelbar von der Trommel 23 übernommen, indem deren Greifer die Vorderkante des auf der Trommel 22 ankommenden Bogens erfassen. Im Falle einer Bogenwendung wird der Bogen, nachdem er vollständig den Spalt zwischen den Trommeln 22 und 23 passiert hat, an seiner Hinterkante von den schwenkbar an der Trommel 23 montierten und entsprechend gesteuerten Greifern erfasst und im Sinne des geraden Pfeils F auf die Trommel 23 gezogen, wobei die bisherige Bogenhinterkante zur Vorderkante des Bogens wird, der gleichzeitig von den Greifern der Trommel 22 freigegeben wird.This sheet turning device is known and its function is explained for example in EP-B 0 136 972. If a sheet, which is located on the drum 22 rotating in the direction of the arrow, is not to be turned, then it is taken over directly by the drum 23 in the usual manner, in that its grippers grip the leading edge of the sheet arriving on the drum 22. In the event of a sheet turning, the sheet, after it has completely passed the gap between the drums 22 and 23, is gripped at its rear edge by the grippers, which are pivotably mounted on the drum 23 and controlled accordingly, and are drawn onto the drum 23 in the direction of the straight arrow F. , with the previous trailing edge of the sheet becoming the leading edge of the sheet which is simultaneously released by the grippers of the drum 22.

In ihrer Funktion als Registertrommel sorgt die Trommel 23 dafür, dass eventuelle Abweichungen der Bogenpositionen vom exakten Register korrigiert werden. Ein derartiges System zur Registerkorrektur und seine Funktion sind in der genannten EP-B 0 136 972 beschrieben.In its function as a register drum, the drum 23 ensures that any deviations in the sheet positions from the exact register are corrected. Such a system for register correction and its function are described in the aforementioned EP-B 0 136 972.

Im Beispiel nach Figur 1 liegen alle Trommeln der Transportvorrichtung B sowie die Ueberführungstrommel 2 und die davor angeordneten Transporttrommeln 1 wenigstens näherungsweise waagerecht nebeneinander bzw. in einer horizontalen Ebene.In the example according to FIG. 1, all the drums of the transport device B and the transfer drum 2 and the transport drums 1 arranged in front of them are at least approximately horizontally next to one another or in a horizontal plane.

Das Stichtiefdruckwerk C besteht aus einem Druckzylinder 25, auf den die Bogen von der Transporttrommel 24 gelangen, einem mit dem Druckzylinder 25 zusammenwirkenden Plattenzylinder 26, der Stichdruckplatten trägt, vier Schablonenwalzen 27, die von Farbwerken 28 mit verschiedenen Farben eingefärbt werden und die Stichdruckplatten auf dem Plattenzylinder 26 einfärben, und aus einer Wischvorrichtung 30. Alle Farbwerke 28 sind in einem abfahrbaren Farbwerkgestell 29 installiert. Die im Stichdruckwerk C bedruckten Bogen werden anschliessend von einem Transportsystem 31, insbesondere einem Kettengreifersystem, übernommen.The intaglio printing unit C consists of a printing cylinder 25, on which the sheets from the transport drum 24 arrive, a plate cylinder 26, which cooperates with the printing cylinder 25 and carries engraving printing plates, four stencil rollers 27, which are colored by inking units 28 with different colors, and the engraving printing plates on the Color plate cylinder 26 and from a wiper device 30. All inking units 28 are installed in a removable inking unit frame 29. The sheets printed in the engraving printing unit C are then taken over by a transport system 31, in particular a chain gripper system.

Mit der beschriebenen Druckmaschine können Banknoten auf beiden Seiten mit jeweils einem vierfarbigen Offsetdruck, der einen Sicherheitsuntergrund darstellt, und ausserdem auf einer ihrer Seiten, je nach Einstellung der Bogenwendevorrichtung, mit einem vierfarbigen Stahlstichdruck als Hauptmuster versehen werden. Gegebenenfalls kann auch die andere Bogenseite im Druckwerk A mit einem Hauptmuster versehen werden, wozu dann einer der Plattenzylinder dient, der in diesem Falle vorzugsweise mit einer ein Hauptmuster aufweisenden Tiefdruckplatte versehen ist, deren Oberfläche ausserhalb der Vertiefungen vom entsprechenden Feuchtwerk angefeuchtet wird, damit sie bei der Einfärbung der Druckplatte keine Farbe annimmt.With the printing machine described, banknotes can be provided on both sides with a four-color offset print, which represents a security background, and also on one of their sides, depending on the setting of the sheet turning device, with a four-color steel engraving print as the main pattern. If necessary, the other sheet side in the printing unit A can also be provided with a main pattern, for which purpose one of the plate cylinders is used, which in this case is preferably provided with a gravure printing plate having a main pattern, the surface of which outside the recesses is moistened by the corresponding dampening unit, so that it is at the color of the printing plate does not take on any color.

Die Druckmaschine nach Figur 2 unterscheidet sich von der nach Figur 1 dadurch, dass die Transporttrommeln 1 nach Figur 1 durch ein anderes bekanntes Bogenzuführungssystem 33, beispielsweise durch Bogentransportbänder, ersetzt sind. Am Ende dieses Bogentransportsystems 33 gelangen die Bogen über eine Stopptrommel 33a und eine Ueberführungstrommel 2 auf den Gummizylinder 3. Ein weiterer Unterschied zur Druckmaschine nach Figur 1 besteht darin, dass im oberen Farbwerkgestell 14 des indirekt druckenden Druckwerks A nur ein Plattenzylinder 12 mit seinem Farbwerk, dafür jedoch im anderen Farbwerkgestell 17 drei Plattenzylinder 15 mit ihren Farbwerken installiert sind. Bei dieser Druckmaschine erstreckt sich der von einem Bogen durchlaufene Umfangsbereich des Gummizylinders 3 über einen Winkel von ungefähr 145°. Alle übrigen Bauteile des indirekt druckenden Druckwerks A, der Bogentransportvorrichtung B und des Stichtiefdruckwerks C sind die gleichen wie beim Ausführungsbeispiel nach Figur 1.The printing machine according to FIG. 2 differs from that according to FIG. 1 in that the transport drums 1 according to FIG. 1 are replaced by another known sheet feed system 33, for example by sheet transport belts. At the end of this sheet transport system 33, the sheets reach the rubber cylinder 3 via a stop drum 33a and a transfer drum 2. Another difference from the printing machine according to FIG. 1 is that in the upper inking unit frame 14 of the indirectly printing printing unit A only one plate cylinder 12 with its inking unit, however, three plate cylinders 15 with their inking units are installed in the other inking unit frame 17. In this printing machine, the circumferential region of the blanket cylinder 3, through which an arc runs, extends over an angle of approximately 145 °. All other components of the indirectly printing printing unit A, the sheet transport device B and the intaglio printing unit C are the same as in the exemplary embodiment according to FIG. 1.

In der Druckmaschine gemäss dem Ausführungsbeispiel nach Figur 3 druckt die untere Hälfte des indirekt druckenden Druckwerks A nach dem Sammeldruckverfahren, auch Orlof-Verfahren genannt, während die obere Hälfte, wie im Beispiel nach den Figuren 1 und 2, nach dem Offsetdruckverfahren druckt. Das Bogenzuführungssystem 33 mit der Stopptrommel 33a, von der die Bogen auf die Ueberführungstrommel 2 gelangen, entspricht dem der Druckmaschine nach Figur 2. In der Bogentransportvorrichtung B sind vor der Bogenwendetrommel 22 nur vier kleine Transporttrommeln vorgesehen, nämlich die Uebergabetrommel 18 und die folgenden drei Trommeln 20, wobei in Umfangsnähe aller vier kleinen Trommeln Trocknungsvorrichtungen 21 angeordnet sind.In the printing press according to the exemplary embodiment according to FIG. 3, the lower half of the indirectly printing printing unit A prints according to the collective printing process, also known as the Orlof process, while the upper half, as in the example according to FIGS. 1 and 2, prints according to the offset printing process. The sheet feed system 33 with the stop drum 33a, from which the sheets reach the transfer drum 2, corresponds to that of the printing machine according to FIG. 2. In the sheet transport device B, only four small transport drums are provided in front of the sheet turning drum 22, namely the transfer drum 18 and the following three drums 20, wherein drying devices 21 are arranged in the vicinity of all four small drums.

Die übrigen Teile der Bogentransportvorrichtung B und das Stichtiefdruckwerk C entsprechen den Ausführungsbeispielen nach den Figuren 1 und 2.The remaining parts of the sheet transport device B and the intaglio printing unit C correspond to the exemplary embodiments according to FIGS. 1 and 2.

Zur Ausführung eines Farbsammeldrucks auf einer Bogenseite ist die untere Hälfte des indirekt druckenden Druckwerks A gemäss Figur 3 folgendermassen ausgebildet:
Die beiden Gummizylinder 3 und 5 sind voneinander abgerückt. Der am Gummizylinder 5 anliegende Plattenzylinder 10 trägt eine ein vollständiges Druckmuster aufweisende Sammeldruckplatte. Zwischen diesem Plattenzylinder 10 und dem Gummizylinder 3 ist ein zusätzlicher kleiner Zylinder in Form eines Bildübertragungszylinders 34 vorgesehen, der sowohl am Plattenzylinder 10 als auch am Gummizylinder 3 anliegt. Rechts der vertikalen Mittellinie des Gummizylinders 5 sind nach Figur 3 vier Plattenzylinder 7 angeordnet, welche Farbselektionsplatten tragen, die von Farbwerken 8 mit verschiedenen Farben eingefärbt werden. Ferner ist wiederum in jedem Farbwerk 8 ein Feuchtwerk 8′ vorgesehen, das bei Verwendung einer Nassoffsetdruckplatte diese anfeuchtet.The lower half of the indirectly printing printing unit A according to FIG. 3 is designed as follows to carry out color collective printing on one sheet side:
The two rubber cylinders 3 and 5 have moved away from each other. The plate cylinder 10 abutting the blanket cylinder 5 carries a complete printing plate having a complete printing pattern. Between this plate cylinder 10 and the rubber cylinder 3, an additional small cylinder in the form of an image transfer cylinder 34 is provided, which bears against both the plate cylinder 10 and the rubber cylinder 3. According to FIG. 3, four plate cylinders 7 are arranged to the right of the vertical center line of the rubber cylinder 5, which carry color selection plates, which are colored by inking units 8 with different colors. Furthermore, a dampening unit 8 'is again provided in each inking unit 8, which moistens it when using a wet offset printing plate.

Die Farbselektionsplatten haben ausgeschnittene Reliefs, die jeweils eingefärbt werden und den in einer bestimmten Farbe zu druckenden Bereichen der Sammeldruckplatte entsprechen, und übertragen ein Mehrfarbenbild mit nebeneinanderliegenden Farben auf den als Farbsammelzylinder fungierenden Gummizylinder 5, der seinerseits die Sammeldruckplatte auf dem Plattenzylinder 10 einfärbt. Das Mehrfarbenbild dieser eingefärbten Sammeldruckplatte wird vermittels des Bildübertragungszylinders 34 auf den Bogen übertragen, der zwischen Gummizylinder 3 und Bildübertragungszylinder 34 hindurchläuft. Die Sammeldruckplatte besteht vorzugsweise aus einer Hochdruckplatte, kann jedoch auch aus einer Nassoffset-Druckplatte bestehen, wobei in diesem Falle diese Druckplatte durch ein Feuchtwerk angefeuchtet wird, welches, in Drehrichtung des Plattenzylinders 10 gesehen, hinter der Berührungsstelle mit dem Bildübertragungszylinder 34 und vor der Berührungsstelle mit dem Gummizylinder 5 angeordnet ist.The color selection plates have cut-out reliefs, each of which is colored and correspond to the areas of the collecting printing plate to be printed in a specific color, and transfer a multicolor image with adjacent colors to the rubber cylinder 5, which acts as an ink collecting cylinder, which in turn colors the collecting printing plate on the plate cylinder 10. The multicolor image of this colored collective printing plate is transferred to the sheet by means of the image transfer cylinder 34, which passes between the blanket cylinder 3 and the image transfer cylinder 34. The collecting printing plate preferably consists of a high-pressure plate, but can also consist of a wet offset printing plate, in which case this printing plate is moistened by a dampening system which, seen in the direction of rotation of the plate cylinder 10, behind the point of contact with the image transfer cylinder 34 and in front of the point of contact is arranged with the rubber cylinder 5.

Um den Bildübertragungszylinder 34 bequem am Umfang des Gummizylinders 3 unterzubringen, ist der Gummizylinder 5 relativ zum darüberliegenden Gummizylinder 3 etwas nach aussen, das heisst gemäss Figur 3 etwas nach rechts versetzt angeordnet. Dadurch ergibt sich am Umfang des Gummizylinders 5, rechts von dessen vertikaler Mittellinie, Platz zur Installation von vier Farbselektionsplatten tragenden Plattenzylindern 7, so dass der Gummizylinder 5 bei diesem Ausführungsbeispiel mit insgesamt fünf Plattenzylindern zusammenarbeitet.In order to accommodate the image transfer cylinder 34 comfortably on the circumference of the rubber cylinder 3, the rubber cylinder 5 is arranged somewhat outwards relative to the rubber cylinder 3 lying above it, that is to say offset slightly to the right according to FIG. This results in space on the circumference of the rubber cylinder 5, to the right of its vertical center line, for the installation of four plate cylinders 7 carrying four color selection plates, so that the rubber cylinder 5 cooperates with a total of five plate cylinders in this exemplary embodiment.

Auf Grund dieser Konfiguration ist die Bogenzuführung zum Gummizylinder 3 gegenüber den Druckmaschinen nach den Figuren 1 und 2 etwas nach oben versetzt und daher der von einem Bogen durchlaufene Umfangsbereich des Gummizylinders 3 zwischen Ueberführungstrommel 2 und Uebergabetrommel 18 etwas grösser; er ist im betrachteten Beispiel gleich dem halben Zylinderumfang, könnte gegebenenfalls jedoch ohne weiteres auch etwas kleiner gemacht werden. Im oberen freien Umfangsbereich des Gummizylinders 3 sind drei Plattenzylinder, nämlich rechts der vertikalen Mittellinie ein Plattenzylinder 12 mit seinem Farbwerk 13 im Farbwerkgestell 14 und links der vertikalen Mittelinie zwei Plattenzylinder 15 mit ihren Farbwerken 16 im Farbwerkgestell 17, vorgesehen.Because of this configuration, the sheet feed to the blanket cylinder 3 is offset somewhat upwards compared to the printing presses according to FIGS. 1 and 2, and therefore the circumferential area of the blanket cylinder 3 between the transfer drum 2 and the transfer drum 18, through which an arc runs, is somewhat larger; in the example considered, it is equal to half the cylinder circumference, but could also be made somewhat smaller if necessary. In the upper free peripheral area of the blanket cylinder 3 are three plate cylinders, namely a plate cylinder 12 with its inking unit 13 in the inking unit frame 14 to the right of the vertical center line and two plate cylinders 15 to the left of the vertical center line with their inking units 16 in the inking unit frame 17.

Die Bogen erhalten also beim Durchlaufen des Druckspalts zwischen Gummizylinder 3 und Bildübertragungszylinder 34 auf ihrer einen Seite einen Dreifarben-Offsetdruck und auf ihrer anderen Seite einen Vierfarben-Sammeldruck. Es lassen sich also auf diese Weise auf beiden Banknotenseiten Sicherheitsuntergründe nach unterschiedlichen Druckverfahren herstellen, wobei das Offsetdruckverfahren Bilder mit überlagerten Farben und das Sammeldruckverfahren Bilder mit nebeneinanderliegenden Farben liefert.The sheets are thus given a three-color offset print on one side and a four-color collective print on their other side as they pass through the printing gap between the blanket cylinder 3 and the image transfer cylinder 34. In this way, it is possible in this way to produce security substrates on both sides of the banknote using different printing methods, the offset printing method providing images with overlapping colors and the collective printing method providing images with adjacent colors.

Die Figuren 4 bis 6 zeigen ein weiteres Ausführungsbeispiel einer Druckmaschine, in welcher das indirekt druckende Druckwerk A konvertierbar ist und drei verschiedene Druckstellungen einnehmen kann. Die Druckmaschine nach den Figuren 4 bis 6 hat die gleiche Bogentransportvorrichtung B, das gleiche Stichtiefdruckwerk C und ein im wesentlichen gleich aufgebautes Druckwerk A wie die bereits beschriebene Druckmaschine nach Figur 3. Gleiche Teile sind mit denselben Bezugszeichen bezeichnet.FIGS. 4 to 6 show a further exemplary embodiment of a printing press in which the indirectly printing printing unit A can be converted and can assume three different printing positions. The printing machine according to FIGS. 4 to 6 has the same sheet transport device B, the same intaglio printing unit C and an essentially identical printing unit A as the printing machine according to FIG. 3 which has already been described. The same parts are identified by the same reference numerals.

Die Unterschiede bestehen darin, dass der Gummizylinder 5 zwischen einer Offsetdruckstellung (Figuren 5 und 6) und einer Sammeldruckstellung (Figur 4) verstellbar ist, dass der Bildübertragungszylinder 34 zwischen einer Arbeitsstellung, in der er sowohl am Gummizylinder 3 als auch am Plattenzylinder 10 anliegt, und einer von diesen beiden Zylindern abgerückten Ausserbetriebsstellung verstellbar ist, dass der Plattenzylinder 10 ebenfalls verstellbar ist, ein zugeordnetes Farbwerk 11 hat und entweder eine Offsetdruckplatte (Figuren 5 und 6) oder eine Sammeldruckplatte (Figur 4) trägt und dass schliesslich die den Gummizylinder 5 berührenden Plattenzylinder 7 entweder Offsetdruckplatten (Figuren 5 und 6) oder Farbselektionsplatten (Figur 4) tragen.The differences are that the rubber cylinder 5 is adjustable between an offset printing position (FIGS. 5 and 6) and a collective printing position (FIG. 4), that the image transfer cylinder 34 is between a working position in which it rests against both the rubber cylinder 3 and the plate cylinder 10. and an out-of-operation position moved away from these two cylinders is adjustable, that the plate cylinder 10 is also adjustable, has an assigned inking unit 11 and either one Offset printing plate (Figures 5 and 6) or a collective printing plate (Figure 4) and that finally the plate cylinder 7 touching the blanket cylinder 5 either carry offset printing plates (Figures 5 and 6) or color selection plates (Figure 4).

Das Bogenzuführungssystem 33 mit der Stopptrommel 33a ist das gleiche wie bei der Druckmaschine nach Figur 3. Dem Gummizylinder 5 sind ausser dem Plattenzylinder 10 mit seinem Farbwerk 11 wiederum vier Plattenzylinder 7 mit ihren Farbwerken 8 zugeordnet, die rechts der vertikalen Mittellinie des Gummizylinders 5 liegen. Der Gummizylinder 3 wird wiederum, wie bei der Druckmaschine nach Figur 3, von drei Offsetplatten tragenden Plattenzylindern 12 und 15 eingefärbt.The sheet feed system 33 with the stop drum 33a is the same as in the printing machine according to FIG. 3. In addition to the plate cylinder 10 with its inking unit 11, the blanket cylinder 5 is in turn associated with four plate cylinders 7 with their inking units 8, which are to the right of the vertical center line of the blanket cylinder 5. The rubber cylinder 3 is in turn, as in the printing machine according to Figure 3, colored by three offset plate plate cylinders 12 and 15.

In der Sammeldruckstellung nach Figur 4 ist der Gummizylinder 5 vom Gummizylinder 3 abgerückt; der Plattenzylinder 10 trägt die ein vollständiges Druckmuster aufweisende Sammeldruckplatte, liegt am Gummizylinder 5 an und ist von dem ihm zugeordneten Farbwerk 11 getrennt, was beispielsweise einfach durch Abstellung der benachbarten Farbwalzen bzw. Uebertragungswalzen erfolgen kann. Der Bildübertragungszylinder 34 nimmt seine Arbeitsstellung ein. Die vier Plattenzylinder 7 tragen Farbselektionsplatten. Die Sammeldruckstellung nach Figur 4 und das erzeugte Sammeldruckbild entsprechen genau der Konfiguration der beschriebenen Druckmaschine nach Figur 3 und dem dort erhaltenen Sammeldruckbild.4, the rubber cylinder 5 has moved away from the rubber cylinder 3; the plate cylinder 10 bears the complete printing plate having a complete printing pattern, rests on the blanket cylinder 5 and is separated from the inking unit 11 assigned to it, which can be done, for example, simply by switching off the adjacent inking rollers or transfer rollers. The image transfer cylinder 34 assumes its working position. The four plate cylinders 7 carry color selection plates. The collective print position according to FIG. 4 and the collective print image generated correspond exactly to the configuration of the described printing press according to FIG. 3 and the collective print image obtained there.

In der Offsetdruckstellung nach Figur 5 ist der Gummizylinder 5, wie im Falle der Druckmaschine nach Figur 1, gegen den Gummizylinder 3 gedrückt; der Plattenzylinder 10 trägt eine vom angestellten Farbwerk 11 eingefärbte Offsetdruckplatte, liegt am Gummizylinder 5 an und färbt diesen ein. Die Plattenzylinder 7 sind ebenfalls mit Offsetdruckplatten versehen. Der Bildübertragungszylinder 34 nimmt seine Ausserbetriebsstellung ein, in weicher er sowohl vom Plattenzylinder 10 als auch vom Gummizylinder 3 abgerückt ist. In diesem Falle wird der den Druckspalt zwischen den Druckzylindern 3 und 5 passierende Bogen auf seiner oberen Seite mit einem Dreifarben-Offsetdruck und auf seiner unteren Seite mit einem Fünffarben-Offsetdruck versehen.In the offset printing position according to FIG. 5, the rubber cylinder 5 is pressed against the rubber cylinder 3, as in the case of the printing machine according to FIG. 1; the plate cylinder 10 carries one of the employed inking unit 11 inked offset printing plate, lies against the rubber cylinder 5 and dyes this. The plate cylinders 7 are also provided with offset printing plates. The image transfer cylinder 34 assumes its inoperative position, in which it has moved away from both the plate cylinder 10 and the blanket cylinder 3. In this case, the sheet passing the printing nip between the printing cylinders 3 and 5 is provided with a three-color offset print on its upper side and with a five-color offset print on its lower side.

Figur 6 zeigt eine weitere Offsetdruckstellung des Druckwerks A, in welcher die Gummizylinder 3 und 5 wiederum gegeneinandergepresst sind, der Plattenzylinder 10 jedoch vom Gummizylinder 5 abgerückt ist und mit dem seine Arbeitsstellung einnehmenden Bildübertragungszylinder 34 zusammenwirkt, der gegen den Gummizylinder 3 gedrückt ist. Der Plattenzylinder 10 trägt eine vom angestellten Farbwerk 11 eingefärbte Offsetdruckplatte, deren Bild mittels des Bildübertragungszylinders 34 auf den Bogen übertragen wird. Die vier Plattenzylinder 7 tragen den Gummizylinder 5 einfärbende Offsetdruckplatten. Auf diese Weise erhält ein Bogen zunächst im Druckspalt zwischen den Gummizylindern 3 und 5 auf seiner oberen Seite einen Dreifarben-Offsetdruck und auf seiner unteren Seite einen Vierfarben-Offsetdruck und anschliessend auf seiner unteren Seite durch den Bildübertragungszylinder 34 einen weiteren Einfarbenoffsetdruck.FIG. 6 shows a further offset printing position of the printing unit A, in which the rubber cylinders 3 and 5 are in turn pressed against one another, but the plate cylinder 10 has moved away from the rubber cylinder 5 and interacts with the image transfer cylinder 34 which assumes its working position and which is pressed against the rubber cylinder 3. The plate cylinder 10 carries an offset printing plate colored by the employed inking unit 11, the image of which is transferred to the sheet by means of the image transfer cylinder 34. The four plate cylinders 7 carry the offset printing plates that color the blanket cylinder 5. In this way, a sheet first receives a three-color offset print in the printing nip between the rubber cylinders 3 and 5 on its upper side and a four-color offset print on its lower side, and then a further single-color offset print on its lower side through the image transfer cylinder 34.

Die Erfindung ist nicht auf die beschriebenen Ausführungsbeispiele beschränkt, sondern lässt insbesondere hinsichtlich der Anzahl und genauen Anordnung der mit den Gummizylindern 3 und 5 zusammenwirkenden Plattenzylinder, des Aufbaus der aus Trommeln zusammengesetzten Bogentransportvorrichtung sowie des Aufbaus des Stichtiefdruckwerks manigfache Varianten zu.The invention is not limited to the exemplary embodiments described, but rather allows for the number and exact arrangement of the the blanket cylinders 3 and 5 interacting plate cylinders, the construction of the sheet transport device composed of drums and the construction of the intaglio printing unit.

Claims (10)

  1. Combined sheet-fed rotary printing machine for securities, especially banknotes, comprising an indirectly printing recto-verso printing unit (A) having a first blanket cylinder (5) cooperating with several plate cylinders (7, 10), and a second blanket cylinder (3) of the same size, co-operating with several plate cylinders (12, 15), with a carry-over-drum (2) feeding the sheets and with a transfer drum (18) taking over the sheets, a sheet fed to said second blanket cylinder (3) resting against this over a circumference region that is defined by the position of the carry-over-drum (2) and of the transfer drum (18) and being taken along, comprising further a sheet transport device (B) located after said indirect printing printing unit (A), drying devices (21) arranged along this sheet transport device, and an intaglio printing unit (C) arranged behind the sheet transport device, the transfer drum (18), the carry-over-drum (2) and the plate cylinders (7, 10, 12, 15) that have a diameter destined for the mounting of only one printing plate, being all of the same size, characterized by the fact that the two blanket cylinders (3, 5) of the indirectly printing printing unit (A) are located at least approximately vertically above one another, that the peripheral length of said circumferential region of the second blanket cylinder (3), covered by a sheet, is at most equal to half the cylinder circumference, and that the other circumferential region of this second blanket cylinder (3) between the carry-over-drum and the transfer drum, not covered by a sheet, is completely available for the installation of a plurality of plate cylinders (12, 15) and their inking devices, that the sheet transport device between the indirect printing printing unit (A) and the intaglio printing unit (C) is composed only of transport drums, which are arranged at least approximately horizontally next to one another, several of these transport drums which follow directly the transfer drum (18) are of the same size as this, and that the drying devices (21) are arranged in circumferential proximity to at least two of these successive transport drums.
  2. Sheet-fed rotary printing machine according to claim 1, characterized by the fact that several interacting transport drums (1), feeding the sheet, are arranged in front of the carry-over-drum (2), said transport drums having the same size as said carry-over-drum and being located at least approximately horizontally next to one another.
  3. Sheet-fed rotary printing machine according to claim 2, characterized by the fact that fluff suck-off devices (32) are provided in circumferential proximity to at least two successive transport drums, in front of the carry-over-drum (7).
  4. Sheet-fed rotary printing machine according to one of claims 1 to 3, characterized by the fact that there are arranged within the sheet transport device a sheet-turning device with a sheet-turning drum (22) and preferably behind this a register-monitoring device with a register drum (22) correcting the register and functioning as a transport drum.
  5. Sheet-fed rotary printing machine according to one of Claims 1 to 4, characterized by the fact that the second blanket cylinder (3) of the indirectly printing printing unit (A) is located above the first blanket cylinder (5), and that the plate cylinders (7, 10; 12, 15) assigned to the first and the second blanket cylinder are arranged respectively on both sides of the vertical centre line of the particular blanket cylinder.
  6. Sheet-fed rotary printing machine according to one of Claims 1 to 5, characterized by the fact that said circumferential region of the second blanket cylinder (3) which is located between the carry-over drum (2) and transfer drum (18) and over which runs a sheet extends over less than 150°.
  7. Sheet-fed rotary printing machine according to one of Claims 1 to 6, characterized by the fact that, in the indirectly printing printing unit (A), the plate cylinders (12, 15) touching the second blanket cylinder (3) carry offset printing plates, and all the plate cylinders (7, 10) assigned to the first blanket cylinder (5) likewise carry, offset printing plates and are in touch with this blanket cylinder, all the plate cylinders each being inked with a different colour by an inking unit (8, 11; 13, 16), and that the two blanket cylinders (3, 5) are pressed against one another, the sheets guided through between these two blanket cylinders acquiring a multicolour offset print simultaneously on both sides.
  8. Sheet-fed rotary printing machine according to one of Claims 1 to 6, characterized by the fact that, in the indirectly printing printing unit (A), the plate cylinders (12, 15) touching the second blanket cylinder (3) carry offset printing plates which are each inked with a different colour by an inking unit (13, 16), that all the plate cylinders (7, 10) assigned to the first blanket cylinder (5) are in touch with this blanket cylinder, that one (10) of these plate cylinders carries a collect printing plate, whilst the remaining plate cylinders (7) carry colour selector plates each inked by an inking unit (8), that the two blanket cylinders (3, 5) are moved away from one another, and that the plate cylinder (10) carrying the collect printing plate interacts with an image transfer cylinder (34) which is itself pressed against the second blanket cylinder (3), the sheets guided through between this blanket cylinder (3) and the image transfer cylinder (34) acquiring simultaneously a multicolour offset print on one side and a colour collect print on the other side
  9. Sheet-fed rotary printing machine according to one of Claims 1 to 6, characterized by the fact that, in the indirectly printing printing unit (A), all the plate cylinders (7, 10) assigned to the first blanket cylinder (5) and all the plate cylinders (12, 15) touching the second blanket cylinder (3) carry offset printing plates and are each inked by an inking unit (7, 11; 13, 16), that one (10) of the plate cylinders assigned to the first blanket cylinder (5) is moved away from this, whilst all the remaining plate cylinders (7) are in touch with this blanket cylinder, that the two blanket cylinders (3, 5) are pressed against one another, and that the plate cylinder (10) moved away from the first blanket cylinder (5) interacts with an image transfer cylinder (34) which is itself pressed against the second blanket cylinder (3), the sheets guided through between the two blanket cylinders (3, 5) acquiring simultaneously a multicolour offset print on both sides and, during the passage through between the second blanket cylinder (3) and the image transfer cylinder (34), an additional single-colour offset print on one side.
  10. Sheet-fed rotary printing machine according to one of Claims 1 to 6, characterized by the fact that, in the indirectly printing printing unit (A), the first blanket cylinder (5) is adjustable between an offset printing position pressed against the second blanket cylinder (3) and a collect printing position moved away from this, that one (10) of the plate cylinders assigned to the first blanket cylinder (5) is adjustable between a position resting against this blanket cylinder (5) and a position moved away from this, that arranged between this adjustable plate cylinder (10) and the second blanket cylinder (3) is an image transfer cylinder (34) which is adjustable between a working position, in which it touches these two cylinders (3, 10) and in which it transfers the colour image originating from the adjustable plate cylinder (10) onto the sheet resting against the second blanket cylinder (3), and a moved-away inoperative position, that, in the collect printing position, all the plate cylinders (7, 10) assigned to the first blanket cylinder (5) rest against this blanket cylinder, the adjustable plate cylinder (10) carries a collect printing plate and is separated from the inking unit (10) assigned to it, the remaining plate cylinders (7) carry colour selector plates each inked by an inking unit (8), and the image transfer cylinder (34) assumes its working position, and that, in the offset printing position, all the plate cylinders (7, 10) assigned to the first blanket cylinder (5) carry offset printing plates each inked by an inking unit (8, 11), and the adjustable plate cylinder (10) either rests against the first blanket cylinder (5) and inks this, whilst the image transfer cylinder (34) assumes its moved-away inoperative position, or is moved away from the first blanket cylinder (5), whilst the image transfer cylinder (34) assumes its working position.
EP89810502A 1988-07-13 1989-07-03 Combined rotary sheet printing press for papers of value, particularly bank notes Expired - Lifetime EP0351366B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89810502T ATE98560T1 (en) 1988-07-13 1989-07-03 COMBINED SHEET ROTARY PRINTING MACHINE FOR VALUE NOTES, ESPECIALLY BANKNOTES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2662/88A CH675985A5 (en) 1988-07-13 1988-07-13
CH2662/88 1988-07-13

Publications (3)

Publication Number Publication Date
EP0351366A2 EP0351366A2 (en) 1990-01-17
EP0351366A3 EP0351366A3 (en) 1990-08-01
EP0351366B1 true EP0351366B1 (en) 1993-12-15

Family

ID=4238763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810502A Expired - Lifetime EP0351366B1 (en) 1988-07-13 1989-07-03 Combined rotary sheet printing press for papers of value, particularly bank notes

Country Status (12)

Country Link
US (1) US5042378A (en)
EP (1) EP0351366B1 (en)
JP (1) JPH0272952A (en)
KR (1) KR970001672B1 (en)
CN (1) CN1015352B (en)
AT (1) ATE98560T1 (en)
AU (1) AU610409B2 (en)
CA (1) CA1318546C (en)
CH (1) CH675985A5 (en)
DD (1) DD283971A5 (en)
DE (1) DE58906415D1 (en)
SU (1) SU1743341A3 (en)

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CH668225A5 (en) * 1985-10-15 1988-12-15 De La Rue Giori Sa MULTICOLOR ROTATION PRINTING MACHINE FOR SIMULTANEOUS BEAUTY AND REPRINT.

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US6779445B2 (en) 2000-01-25 2004-08-24 Koenig & Bauer Aktiengesellschaft Intaglio printer

Also Published As

Publication number Publication date
CN1039213A (en) 1990-01-31
CN1015352B (en) 1992-02-05
AU3663889A (en) 1990-01-18
DD283971A5 (en) 1990-10-31
SU1743341A3 (en) 1992-06-23
AU610409B2 (en) 1991-05-16
KR970001672B1 (en) 1997-02-13
CA1318546C (en) 1993-06-01
DE58906415D1 (en) 1994-01-27
KR900001507A (en) 1990-02-27
EP0351366A3 (en) 1990-08-01
CH675985A5 (en) 1990-11-30
JPH0272952A (en) 1990-03-13
US5042378A (en) 1991-08-27
ATE98560T1 (en) 1994-01-15
EP0351366A2 (en) 1990-01-17

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