EP0415881A2 - Machine rotative d'impression combinée, particulièrement pour imprimer les papiers de valeur - Google Patents

Machine rotative d'impression combinée, particulièrement pour imprimer les papiers de valeur Download PDF

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Publication number
EP0415881A2
EP0415881A2 EP90810621A EP90810621A EP0415881A2 EP 0415881 A2 EP0415881 A2 EP 0415881A2 EP 90810621 A EP90810621 A EP 90810621A EP 90810621 A EP90810621 A EP 90810621A EP 0415881 A2 EP0415881 A2 EP 0415881A2
Authority
EP
European Patent Office
Prior art keywords
printing
web
roller
unit
printing unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90810621A
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German (de)
English (en)
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EP0415881A3 (en
EP0415881B1 (fr
Inventor
Albrecht Josef Germann
Hans Bernhard Bolza-Schünemann
Johannes Georg Schaede
Joachim Alfred Heinz Lapp
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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Filing date
Publication date
Application filed by De la Rue Giori SA filed Critical De la Rue Giori SA
Publication of EP0415881A2 publication Critical patent/EP0415881A2/fr
Publication of EP0415881A3 publication Critical patent/EP0415881A3/de
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Publication of EP0415881B1 publication Critical patent/EP0415881B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/04—Conveying or guiding webs through presses or machines intermittently
    • 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
    • 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 rotary web printing machine, in particular for printing notes of value, according to the preamble of patent claim 1.
  • Combined web printing machines of this type are known, for example, from EP-B-0 132 857 and allow notes of value, in particular banknotes, to be processed in one operation with a security background which can be produced by an indirect printing process such as the offset printing process and with a main pattern produced by intaglio printing to manufacture.
  • the paper web as is customary in web-fed printing presses, is always transported continuously at a speed which is equal to the peripheral speed of the cylinders of the printing units which form a printing nip, since the paper web is constantly clamped between these two cylinders.
  • Another difficulty with web printing machines with continuous paper web transport is that the cylinders forming the printing nip, i.e. the blanket cylinders in the case of an indirectly printing printing unit and the plate cylinder and the printing cylinder in the case of an intaglio printing unit, have to be provided with a continuous surface and that their circumferential length is a multiple of that Length of a benefit, i.e. a security print, must be if no paper losses are to occur.
  • These requirements mean a considerable effort for the production of the cylinders mentioned, compared with the cylinders used in sheet-fed printing machines, which are sector-shaped and in which individual blankets, printing plates or printing covers can be clamped onto the individual cylinder sectors in a relatively simple manner.
  • a printing unit for a web-fed rotary printing press which allows printing on a web with changeable, adjoining formats and works with four pulling roller groups, with the first and second pulling roller groups in front of the printing nip and between them Web-tensioning web web storage and after the printing nip the third and fourth drawing roller groups and in between also a paper web storage are installed; the second and third draw roller groups are each controlled by a regulated electromotive drive for moving the web forward and backward.
  • This known printing unit is an offset printing unit, and in the event that the paper web should subsequently receive further prints, it is expressly mentioned in the aforementioned DE-C 31 35 696 that one or more downstream printing units or processing stations are then provided are which further process the paper web running at a uniform speed.
  • the present invention has for its object to provide a combined web printing machine according to the preamble of claim 1, which on the one hand enables easy, flawless register correction and print length correction and on the other hand eliminates the difficulties associated with the production of cylinders with a continuous surface .
  • the web printing machine according to the invention has an indirectly printing printing unit, which is expediently the first printing unit, and at least one, in particular two, intaglio printing units; their construction with sector-shaped printing and plate cylinders is very advantageous, as explained earlier.
  • the order of the printing units can also be selected according to claim 4.
  • the tension roller groups known from DE-C 31 35 696 each consist of a tension roller and a pressure roller pressing the paper web against it.
  • a group of pull rollers is unfavorable for the next step operation, since the masses of two rollers have to be braked and accelerated very quickly and, in order to prevent the paper web from sliding between the rollers, both rollers have to be pressed against one another with great force.
  • the web printing machine according to the invention preferably has a draw roller unit in the form of only one suction roller, as described in claim 5; expedient configurations of this suction roll are described in the following dependent claims.
  • the combined printing press shown in Figures 1 to 3 has three printing units A, B and C, which are successively traversed by the web P to be printed in the direction of the arrows.
  • the first printing operation takes place in the indirectly printing printing unit A (FIG. 2), which is located in the middle of the machine and which, in the example under consideration, is a multicolor offset printing unit that works in perfecting. Both sides of the web are provided with multicolored offset printing at the same time.
  • the web then runs through an intaglio printing unit B (FIG. 3) arranged at the right end of the machine, in which one side of the web receives a multicolor intaglio printing.
  • the web runs through a further intaglio printing unit C arranged at the left end of the machine, in which the other side of the web receives a multicolor intaglio printing.
  • the printing unit A designed as an offset printing unit, has two interacting rubber cylinders 2 and 3, which are mounted next to one another in a frame 1 and rotate in the direction of the curved arrows, each with three sectors, on each of which a rubber blanket 2a or 3a is stretched. The sectors are separated by cylinder pits 2b and 3b, in which the means for tensioning the rubber blankets are subordinate.
  • This offset printing machine is therefore designed similarly to a sheet-fed printing machine.
  • Each blanket cylinder 2 and 3 works with four plate cylinders 4 and 5, which are mounted in the frame 1 and which carry offset printing plates and are colored in different colors by corresponding inking units 6 and 7, respectively.
  • the top inking unit has a simple ink fountain on each side, while the other three colors works are equipped with a double ink fountain on each side.
  • the dampening units assigned to each inking unit indicated in FIG. 2 show, the example under consideration is a wet offset printing press which can alternatively also be operated as an indirect high-pressure unit or in a combination of both methods. All inking units 6 on one side are arranged in a removable inking unit frame 8 and all inking units 7 on the other side in a removable inking unit frame 9.
  • automatic blanket washers 10 and 11 are installed on the circumference of the blanket cylinders 2 and 3, which are moved away from the blanket cylinders during the printing operation of the machine.
  • a paper drying device 12 which works with UV radiation and through which the freshly printed web runs, is installed above the rubber cylinders 2 and 3.
  • the intaglio printing unit B (FIG. 3) has a plate cylinder 14 which is mounted in a frame 13 and a printing cylinder 15 which cooperates with it.
  • This intaglio printing machine is also designed similarly to an arc printing machine, that is to say the plate cylinder 14 has sectors separated by cylinder pits 14b, on which three Pressure plates 14a are clamped by means of devices installed in the cylinder pits 14b.
  • the pressure cylinder 15 has three sectors, separated by cylinder pits 15b, on which pressure covers 15a are stretched.
  • the plate cylinder 14 is inked indirectly on the one hand by a collecting and inking cylinder 16 and on the other hand directly by a stencil roller 19.
  • the collecting and inking cylinder 16 works in the example under consideration with three ink selection rollers 17, which are inked by one inking unit 18 each.
  • This color selection Rollers 17 are designed like stencil rollers and have relief-like zones whose contours correspond to the outlines of the areas to be printed with the relevant color.
  • the different ink areas originating from all three ink selection rollers 17 are collected on the collecting and inking cylinder 16 and transferred to the printing plates 14a.
  • the stencil roller 19, which is seen behind the collecting and inking cylinder 16 in the direction of rotation of the plate cylinder 14, is inked by an inking unit 20. Behind this stencil roller 19, a pre-wiping device 22 engaging the plate cylinder 14 and then a wiping device 23 are installed.
  • the cylinders 14, 15 and 16, the direction of rotation of which is indicated by curved arrows, the stencil roller 19, the pre-wiping device 22 and the wiping device 23 are installed in a machine frame 13, while the ink selection rollers 17 with their inking units 18 and the inking unit 20 in a removable inking unit frame 21 are arranged, the removed position is indicated by dashed lines.
  • the web P printed on one side in the printing unit B is then printed on the other side with a multicolor intaglio printing image in the third printing unit C, which is also an intaglio printing unit that is constructed in mirror image of the printing unit B.
  • the parts of the printing unit C are denoted by the same reference numerals 13 'to 23', however, with a prime, so that a description of the printing unit C is dispensed with.
  • All three printing units A, B and C and the transport device for the web P described below are housed in a common main frame 24 of the machine.
  • the transport device and the course of the path P are described below, only the parts essential for understanding the invention being described.
  • the web P is unwound from a supply roll, not shown, and passes via a web feed device 25 (FIG. 2) and a turning bar 26 into a first draw roller arrangement 27, consisting of a draw roller which is wrapped by the web, and a pressure roller which counteracts the web the pull roller presses.
  • This pull roller assembly 27 and the later mentioned pull roller assemblies 34 ( Figure 3), 34 '( Figure 1) and 48 ( Figure 3) are preferably driven uniformly.
  • Via a device 28 for laterally aligning the web it then passes over deflection rollers into a first paper web storage 29, which in the example under consideration works with a vacuum chamber.
  • Such a paper web storage device is known and is controlled in such a way that the paper web P between the draw roller arrangement 27 and the entrance of the paper web storage device 29 is tensioned taut with a predetermined force by air vacuum and the tension of this section of the web is kept constant at a predeterminable value.
  • this individually controllable pulling roller unit 30 has a single suction roller 30b as the pulling roller, the construction of which will be described in more detail later and which by an individually controlled drive 30a, in the form of a electronically controlled motor.
  • the web emerging from the paper web storage 29 wraps around this suction roller from below by approximately 180 ° and then, guided by a deflection roller, runs through the pressure gap formed by the two rubber cylinders 2 and 3, then through the drying device 12 and then wraps one to one from above second suction roller unit 31 belonging suction roller 31b again by approximately 180 °.
  • This pulling roller unit 31 installed in a frame part 24a above the main frame 24 is constructed like the pulling roller unit 30, can be controlled intermittently for moving the web forwards and backwards and is in turn moved by an individually controlled drive 31a in the form of an electronically controlled motor.
  • the web passes through a second paper web storage 32, which is constructed and controllable in exactly the same way as the paper web storage 29.
  • the web is then moved over several deflecting rollers, to the right in the illustration according to FIGS 52 and a device 33 which adapts the paper path to the desired repeat length are passed to a further pulling roller arrangement 34 which is constructed in the same way as the pulling roller arrangement 27 and has a uniformly driven pulling roller and a pressing roller which presses the web against it (FIG. 3).
  • the roller 34a over which the web then runs, measures the web tension and controls the device 33 and the tension roller arrangement 34.
  • the web P then continues via a device 35 measuring its moisture and temperature, a device 36 for laterally aligning the web and via a deflecting roller into a first paper web storage unit 37 belonging to the second printing unit B, so is constructed and controllable like the paper web storage mentioned above.
  • a device 35 measuring its moisture and temperature
  • the paper web is kept constantly tensioned with an adjustable force and is moved by the pulling roller arrangement 34 at a uniform speed.
  • the web After exiting from the paper web storage 37, the web loops from above, through approximately 180 °, through which the suction roller 38b of an intermittently controlled draw roller unit 38, guided by deflection rollers, then wraps around the printing nip between the plate cylinder 14 and the printing cylinder 15 of the engraving printing unit B. , by approximately 180 °, the suction roller 39b of an intermittently controlled draw roller unit 39 and then arrives in the second paper web storage 40 assigned to the printing unit B.
  • the draw roller units 38 and 39 are designed like those described above and are each controlled by an independent, regulated drive 38a or 39a controlled for moving the portion of the web extending between the paper web stores 37 and 40 back and forth. When the suction roller 39b is wrapped around, the side of the web that is not printed in the printing unit B bears against this roller.
  • the web After exiting the paper web storage 40, the web passes a video test device 41, which scans the printed images, and then, after being deflected by a deflection roller, passes through a drying chamber 42 with a plurality of hot air dryers 43 mounted on the main frame 24 Figure 2 left side of the drying chamber 42 and enters a frame part 24b mounted on the main frame 24, in which it wraps around two driven cooling rollers 44 and a moistening device 45 in between goes through. Then the web is guided over deflection rollers above the frame part 24a and further, to the left in the illustration according to FIGS. 2 and 1, up to a moistening device 46 which moistens both sides of the web.
  • a video test device 41 which scans the printed images, and then, after being deflected by a deflection roller, passes through a drying chamber 42 with a plurality of hot air dryers 43 mounted on the main frame 24 Figure 2 left side of the drying chamber 42 and enters a frame part 24b mounted on the main frame 24, in which
  • the following stations of the transport device including the passage of the web through the printing nip between the plate cylinder 14 'and the printing cylinder 15' of the intaglio printing unit C correspond to the previously described stations 33 to 45 and the passage of the web through the printing unit B. Therefore, they become the moistening device 46 following stations, which are designated by the corresponding same, but with a dash reference numerals 33 'to 45', not described in detail.
  • the suction roller 39'b is wrapped by the side of the web not printed in the printing unit C.
  • the web P After the web P has left the frame part 24'b with the cooling rollers 44 'and the moistening device 45' (FIG. 2), it runs to the right in the illustration according to FIGS. 2 and 3 and is guided by deflection rollers which are attached to supports 47 on the Frame part 24a and mounted on the drying chamber 42, passed into a frame part 24c, in which they between the uniformly driven drawing roller and the Pressure roller of a further tension roller arrangement 48 passes through and a further moistening device 49 passes. Then the web, guided by deflection rollers, passes a further video testing device 50 to the exit 51 of the machine, from which it is fed to further control and processing stations, in particular the cutting stations.
  • the transport device described is designed such that the paper web from its paper roll to the first paper web storage 29 of the printing unit A, between the second paper web storage 32 of the printing unit A and the first paper web storage 37 of the printing unit B, between the second paper web storage 40 of the printing unit B and the first paper web storage 37 'of the printing unit C and behind the second paper web storage 40' of the printing unit C is continuously moved, while the sections of the web passing through the printing columns of all three printing units A, B and C between each of the first and second paper web storage units of each printing unit in the so-called pilgrim step - Operation can be moved back and forth in a regulated manner. It is briefly explained for printing unit A (FIG. 2):
  • the paper web between the two rubber cylinders 2 and 3 is split from the nor paint the printing nip speed braked to a standstill, then accelerated in the reverse direction, then again braked to a standstill and finally accelerated in the forward direction to the printing nip speed, whereupon the further transport again through the two rubber cylinders 2 and 3 and the suction rollers 30b and 31b at the speed of the nip as soon as the blankets of the two blanket cylinders following the aforementioned cylinder pits again clamp the web on both sides for the following printing.
  • the described pilgrim movement is controlled in such a way that the printed images successively transferred to the paper web follow one another at the specified narrow spacing for the purpose of saving paper, and allows the printing format to be changed continuously in a manner known per se, for example between the repeat lengths 605 mm measured in the transport direction and 685 mm without having to change the cylinders. It is sufficient to adjust the lengths by which the web is moved back and forth relative to the circumference of the moving rubber cylinders 2 and 3 during the vocational step operation, and to program the control of the drives 30a and 31a accordingly. In addition, the pull roller units 30, 31 take over the register and print length control, which is explained in more detail with reference to FIG. 11.
  • FIG. 11 shows the signal flow diagram of the regulating and control system of the two drawing roller units of a printing unit, specifically for example the printing unit A with its two rubber cylinders 2 and 3 as printing unit cylinders and the drawing roller units 30 and 31.
  • the path of the paper web P is schematically shown in FIG. 11 above the paper web storage 29, via the suction roller 30b, through the pressure gap between the two rubber cylinders 2 and 3, via the suction roller 31b and represented by the paper web storage 32.
  • the suction roller 30b is equipped with an encoder E0 as an actual value transmitter, which measures the actual position value ⁇ i of the suction roller 30b, ie its angular position, indicated by an arrow.
  • the suction roller 31b is equipped with an encoder E1 as an actual value transmitter, which measures the actual position value ⁇ i of this suction roller.
  • One of the printing unit cylinders in the example considered the blanket cylinder 3, is provided with an encoder E as a setpoint generator, which measures the angle of rotation ⁇ of the blanket cylinder 3 and thus, of course, of the blanket cylinder 2, which is driven synchronously and counter to this.
  • a reader L1 for reading register marks RM which are provided on the paper web P, for example in the form of watermarks, and whose position is designated by x, is installed in front of the printing nip. Behind the printing nip are two readers L2 and L3, which read printing marks DM, which were applied in the printing unit A at the start and end of the previous print and whose distance represents the actual value of the print length DLi.
  • the regulating and control system has a pilgrim step generator PS, a controller R connected to its output, for example in the form of a process computer, and two comparators V1 and V2 each provided with four inputs.
  • the comparator V1 is connected on the input side to the three encoders E, Eo and E1 and to the reader L1 and with its output to the controller R.
  • the comparator V2 is also connected on the input side to the three encoders E, Eo and E1 and to the readers L2, L3 and with its output to the controller R.
  • the controller R which is also connected on the input side to the three encoders E, Eo and E1, has two outputs, each of which is connected to a power actuator LSTG, of which the one controls the draw roller unit 30 and the other controls the draw roller unit 31.
  • the desired average repeat length RL is entered into the pilgrim step generator PS and the desired print length DL into the controller R.
  • Repeat length is known to mean the distance from the beginning of printing to the beginning of printing of successive prints.
  • the vocational step generator PS calculates the mit step necessary for this repeat length RL.
  • the control of the tension roller units 30, 31 takes place as a function of the angle of rotation ⁇ or the speed of the rubber cylinders 2 and 3, taking into account register and pressure length corrections.
  • the comparator V1 compares the angle of rotation ⁇ of the rubber cylinders 2, 3 and the position x of the read register marks RM and gives a possible deviation ⁇ x from the ideal position x of the register mark RM to the controller R.
  • the comparator V2 compares the angle of rotation of the rubber cylinders 2, 3 and the actual value of the pressure length DLi read by the readers L2, L3 and gives a possibly existing deviation ⁇ DL from the target value of the pressure length DL to the controller R.
  • the controller R gives the setpoints ⁇ , ⁇ , and as well as ⁇ , ⁇ , , ie in each case the position, speed and acceleration setpoint of the suction rolls 30b and 31b, as control values for the power actuators LSTG in question, which ensure appropriate control of these suction rolls.
  • the Position setpoint of the paper web at the end of the vocational step operation is specified such that a possible deviation ⁇ x from the ideal value of the repeat length RL is compensated for.
  • the stretching of the paper web in front of the printing unit during vocational step operation is controlled by appropriate regulation of the web tension in such a way that any deviation ⁇ DL is compensated for and the desired printing length DL is thus exactly maintained.
  • the respective elongation of the paper web results from the measured angular positions and angular speeds of the suction rolls 30b and 31b and can be changed by temporarily different angular speeds of the two suction rolls.
  • both suction rolls 30b and 31b are operated during the printing phase while maintaining the set web stretch with peripheral speed synchronous with the peripheral speed of the rubber cylinders 2, 3.
  • the paper web P entering the first printing unit of the printing press in the example considered printing unit A, has no previously applied register marks or no watermarks acting as register marks, then of course the reader L1 and the comparator V1 are out of operation.
  • the comparator V2 for the print length works as described above.
  • the position setpoint of the paper web at the end of the vocational step operation taking into account the print mark DM marking the start of printing, is specified such that this repeat length RL is exactly adhered to by appropriately dimensioning the control variables for the pulling roller units 30, 31 .
  • one of the print marks generated in printing unit A also has DM nor the function of a register mark, with respect to which the repeat length, that is to say the register, is controlled during the immediately following printing in the printing unit A.
  • the printing marks applied in the first printing group and marking the start of printing serve in the second printing group and in the following printing groups, in the example considered in printing groups B and C, as register marks, whose position x read in front of the printing nip in the comparator V1 with the angle of rotation ⁇ the cylinder of the printing unit in question is compared in order to determine and correct a possible deviation .DELTA.x.
  • the suction rollers 38b and 39b in the intaglio printing unit B and the suction rollers 38b 'and 39b' in the intaglio printing unit C are controlled.
  • the pull roller units 38, 39 and 38 ', 39' also also take on the function of register and print length correction, so that the prints in intaglio printing units B and C are held in register with respect to the previously applied prints.
  • the regulation takes place as a function of the printing marks applied in the first printing group A, which function as register marks, and as a function of those in the relevant printing group B or C generated print marks.
  • the plate cylinder 14 or 14 'or the pressure cylinder 15 or 15' is provided with an encoder E as a setpoint generator.
  • angle position encoders of another known type can also be used.
  • the higher-level process computer PR which is preferably provided for the entire press, coordinates and optimizes the regulating and control systems of each of the printing units A, B and C.
  • each of the three printing units A, B, C not only with different repeat lengths, but also with different paper web tensions during the respective printing process for the purpose of correcting the printing length.
  • the printing cylinder can also be equipped with well-known and proven printing covers with a long service life, so that the highly noticeable embossing characteristic of intaglio printing is achieved.
  • Figures 4 to 9 show a preferred embodiment of the suction roller 30b, 31b, 38b, 39b, 38b ', 39b' a pull roller unit 30, 31, 38, 39, 38 ', 39'.
  • the rotating part of this suction roller consists of a roller shell 61, which is made of a light carbon fiber reinforced plastic (CFRP), namely made of carbon fiber impregnated with plastic, and therefore has a relatively low rotational inertia. Since the suction roll must be repeatedly braked and accelerated strongly in a fraction of a second during vocational step operation, the lowest possible moment of inertia of the rotating part is desirable.
  • CFRP light carbon fiber reinforced plastic
  • the roll shell 61 is shown as a single part, it typically has an overall axial length of about 100 cm and a diameter of about 15 cm.
  • the representations according to FIGS. 4 and 7 show how the interruptions indicate that the suction roll is shortened axially.
  • an outer ring flange 61a is formed on the cylinder jacket 61, and the other end is tapered to form a connecting flange 61b.
  • the roller shell 61 is provided with a plurality of suction openings 62, the distribution of which will be explained later.
  • a flange part 63 preferably made of light metal, is fastened to the ring flange 61a by means of screws 64.
  • the roller shell 61 is rotatable about a solid, hollow roller core 65, preferably made of metal.
  • a metallic bearing journal 66 is fastened to the roll core 65, the base of which tightly closes the inside of the roll core 65.
  • two radial, preferably metal partitions 69 are fastened, which enclose a suction chamber 72 between them, as shown in particular in FIG.
  • ring walls 67 and 68 are attached to the circumference of the roller core 65, which preferably also consist of metal and which close the suction chamber 72 on their axial sides.
  • the ring wall 68 at the end of the roller core 65 facing the flange part 63 is axially extended by an outstanding connecting piece 68b, which is used to fasten the stationary part of the suction roller to the machine frame and to connect to a vacuum source.
  • the peripheral wall of the roller core 65 is provided with relatively large passage openings 70 within the suction chamber 72. All parts 66, 67, 68, 69 fastened to the roller core 65 are welded in the example considered.
  • the roller shell 61 is at one end with its flange 63 by means of a bearing 71 'in the example considered as a bearing 71' on the socket 68b and at its other end with its connecting flange 61b by means of a bearing 71 also designed as a ball bearing mounted rotatably on the journal 66 of the roller core 65.
  • the arrangement is such that the gaps between the inner circumference of the roller shell 61 and the radially outer ends of the partition walls 69 and the outer circumference of the ring walls 67 and 68 are at least approximately sealed against air passage.
  • This sealing material 73 can in particular be a self-adhesive brush, for example.
  • the arrangement can also be such that only a very small gap is provided between the inner circumference of the roller shell 61 and the partition walls 69 and the ring walls 67 and 68, without the insertion of any special sealing material.
  • Such narrow gaps offer such a high resistance to air passage that these gaps are sufficiently tight to maintain the required negative pressure within the suction chamber 72.
  • the connecting piece 68b is constantly connected to a vacuum source, so that a sufficiently strong vacuum is maintained in the interior of the roller core 65, by means of the openings 70, in the suction chamber 72 and consequently at the suction openings 62 opening into this suction chamber 72, through which the paper web, which wraps around the suction roller in the area of the suction chamber 72 by 180 °, is pressed against the outer circumference of the roller shell 61, that is to say is held by strong suction.
  • roller shell 61 By means of a suitable surface treatment of the roller shell 61, the surface of which is preferably nickel-plated and plasma-coated, as a result of which this surface becomes impact-resistant and abrasion-resistant and is provided with a certain roughness, it is achieved that even with the high accelerations of the suction roller occurring in crawl step operation, there is no slippage between it and the paper web takes place, which therefore follows all the movements of the suction roll.
  • the suction openings 62 are distributed in a certain way, as shown in FIG.
  • FIG. 8 which shows part of the roll shell 61 developed in one plane
  • the suction openings 62 are arranged in zigzag lines lying parallel to one another, that is to say on the roll shell 61 in each case along helical line sections which run in a zigzag shape.
  • adjacent suction openings 62 are each arranged angularly and offset from one another parallel to the axis direction, the angular displacement being 6 ° in each case in the example considered.
  • successive suction openings are at an angle of 30 ° apart, and the distance between adjacent suction openings along a surface line, that is to say parallel to the axis, is approximately 5 cm in the example considered.
  • this results in a successive cut-off of the negative pressure at the end of the wrapping, so that the web moves away without any problems the suction roller releases, and on the other hand, good adhesion of the web to the suction roller is ensured in the entire loop area.
  • the shape of the suction openings 62 is shown in the enlarged illustration according to FIG. 9, according to which the inner region of this suction opening consists of a cylindrical bore and the outer region consists of a conical widening.
  • a perfect balancing of the roll shell 61 is expediently achieved by making appropriately arranged and dimensioned bores 74 in the conical wall of the connecting flange 61b (FIGS. 4 and 7) and optionally in the ring flange 61a between the openings for the passage of the screws 64. If such bores are not sufficient, small pins can also be glued in on the opposite side to achieve perfect balancing.
  • the roller jacket 61 is pressed directly onto the shaft of the drive motor with its integrally formed connecting flange 61b.
  • the cylinders forming a printing gap are advantageously designed such that the Cylinder pits can be changed in their circumferential length in the case of a printing cylinder by means of removable and interchangeable filler pieces of different lengths and in the case of a rubber cylinder by appropriately dimensioned rubber blanket pads and adapted to the respective format.
  • FIG. 10 shows the example of a printing cylinder of an intaglio printing unit, in the example considered the printing cylinder 15, with a metallic filler 54 inserted in the cylinder pit 15b.
  • the pressure cover 53 clamped on the cylinder sector 15a is fastened with its end 53a engaging in the cylinder pit 15b in a known manner to a tensioning shaft 58, by means of which it is tensioned.
  • the other end of the pressure cover 53 is fastened in the adjacent cylinder pit in the same way as the end 53b of the adjacent pressure cover which engages in the cylinder pit 15b.
  • This end 53b is clamped between the right wall of the cylinder pit 15b in FIG. 10 and a clamping piece 59 which is acted upon by a rotatable cam 60.
  • This cam 60 is provided with a worm wheel so that it can be tensioned with the help of a worm 60a.
  • the screw 60a can be rotated with a suitable key in order to tighten or loosen the clamping
  • the filler 54 rests with a flat side surface on the cylinder pit wall on the left according to FIG. 10 and with its flat bottom surface rests on the bottom of the cylinder pit 15b. Its surface is curved and extends the cylindrical surface of the cylinder sector 15 ⁇ a. The upper right edge according to FIG. 10 is rounded, so that the pressure cover 53 can be stretched over this edge.
  • the filler 54 is secured by a plurality of fastening screws 55, 56, 57 different orientations held firm and immovable.
  • the fastening screws 55, 56, 57 which are oriented vertically, obliquely and almost parallel to the bottom of the cylinder pit 15b in the example according to FIG. 10, ensure that the filler 54 does not change its position despite the large pressure occurring during pressure.
  • the printing cylinder 15 is equipped with the filler 54 for the largest printing format, which extends up to the radius F1, that is to say the effective circumferential length of the cylinder pit 15b is the smallest.
  • a filler piece correspondingly shorter in the circumferential direction is used.
  • the print cover 53 runs less inclined at its area engaging in the relatively long cylinder pit 15b, as shown in broken lines in FIG. 10. So in order to change the effective circumferential length of a cylinder pit, the actual fastening of the two ends of the pressure cover by means of the tension shaft 58 or the clamping piece 59 need not be modified; Extend or shorten the filler.
  • the procedure is such that the support for the rubber blanket is dimensioned accordingly, that is to say is trimmed accordingly, in order to adapt the circumferential length of the cylinder pit.
  • a four-color wet offset printing or, when the dampening units are out of operation and use of dry offset plates, a dry offset printing or a combination of both, as well as a four-color intaglio printing, consisting of a three-color collective printing and a single-color direct intaglio printing, can be carried out on the front of the web , and also produce a four-color offset print and a four-color intaglio print on the back of the web.
  • the invention is not restricted to the exemplary embodiment described, but rather permits multiple variants with regard to the type, the number and the sequence of the printing units, the type of control of the drawing roller units and the structure of the suction rollers.
  • perforating units and / or cutting units for example, can also be combined with the printing machine in the manner described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Paper (AREA)
  • Advancing Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Color Electrophotography (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Ink Jet (AREA)
  • Control Of Multiple Motors (AREA)
EP90810621A 1989-08-30 1990-08-17 Machine rotative d'impression combinée, particulièrement pour imprimer les papiers de valeur Expired - Lifetime EP0415881B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH314889 1989-08-30
CH3148/89 1989-08-30

Publications (3)

Publication Number Publication Date
EP0415881A2 true EP0415881A2 (fr) 1991-03-06
EP0415881A3 EP0415881A3 (en) 1991-06-12
EP0415881B1 EP0415881B1 (fr) 1994-11-09

Family

ID=4249651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810621A Expired - Lifetime EP0415881B1 (fr) 1989-08-30 1990-08-17 Machine rotative d'impression combinée, particulièrement pour imprimer les papiers de valeur

Country Status (12)

Country Link
US (1) US5062360A (fr)
EP (1) EP0415881B1 (fr)
JP (1) JP2919025B2 (fr)
KR (1) KR0163768B1 (fr)
CN (1) CN1026079C (fr)
AT (1) ATE113898T1 (fr)
AU (1) AU630498B2 (fr)
CA (1) CA2022550C (fr)
DD (1) DD297367A5 (fr)
DE (1) DE59007684D1 (fr)
RU (1) RU1838151C (fr)
UA (1) UA18594A1 (fr)

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GB2275020A (en) * 1993-02-10 1994-08-17 Heidelberger Druckmasch Ag Rotary printing press for the two-sided printing of sheets
GB2275021A (en) * 1993-02-10 1994-08-17 Heidelberger Druckmasch Ag Rotary printing press for the two-sided printing of sheets
EP0683123A1 (fr) * 1994-05-20 1995-11-22 De La Rue Giori S.A. Machine rotative d'impression pourvue d'un dispositif de repérage pour aligner la bande de papier
EP0718099A2 (fr) 1994-12-24 1996-06-26 Armin Steuer Machine rotative pour gaufrer
EP0873866A1 (fr) * 1997-04-14 1998-10-28 De La Rue Giori S.A. Machine taille-douce
EP1136258A2 (fr) * 2000-03-23 2001-09-26 MAN Roland Druckmaschinen AG Méthode de fonctionnement d'une machine d'impression rotative avec appareil de pliage
WO2007060624A1 (fr) 2005-11-28 2007-05-31 Kba-Giori S.A. Machine d'impression alimentee en feuilles ou en nappe
EP1842665A1 (fr) 2006-04-04 2007-10-10 Kba-Giori S.A. Procédé de production de papiers de sécurité, machine d'impression héliogravure pour réaliser ledit procédé et papier de sécurité produit selon ledit procédé
EP1958769A1 (fr) * 2007-02-15 2008-08-20 Kba-Giori S.A. Procédé et appareil pour la formation d'un motif d'encre montrant un gradient d'encre bidimensionnel
KR100904791B1 (ko) 2001-11-27 2009-06-25 케이비에이-지오리 에스.에이. 요판에 의한 인쇄장치
EP2119527A1 (fr) 2008-05-16 2009-11-18 Kba-Giori S.A. Procédé et système pour la fabrication de plaques d'impression en creux pour la production de papiers sécurisés
EP2159069A1 (fr) 2008-08-29 2010-03-03 Kba-Giori S.A. Procédé de vernissage de documents de sécurité, spécialement des documents de sécurité imprimés en creux tels que des billets de banque, et machine de vernissage pour l'effectuer
EP2251197A2 (fr) 2009-05-15 2010-11-17 Edelmann Graphics GmbH Presse d'impression
EP2251198A2 (fr) 2009-05-15 2010-11-17 Edelmann Graphics GmbH Presse d'impression
EP2251196A2 (fr) 2009-05-15 2010-11-17 Edelmann Graphics GmbH Presse d' impression
EP2524809A1 (fr) 2011-05-20 2012-11-21 KBA-NotaSys SA Ink wiping system for an intaglio printing press
EP2524805A1 (fr) 2011-05-20 2012-11-21 KBA-NotaSys SA Système d'essuyage d'encre pour presse d'impression en creux
EP2636527A1 (fr) 2012-03-09 2013-09-11 Kba-Notasys Sa Système d'essuyage d'encre d'une presse d'impression en creux et presse d'impression en creux le comprenant
EP2650131A1 (fr) 2012-04-10 2013-10-16 KBA-NotaSys SA Presse à imprimer avec chariot d'encrage mobile
WO2014012722A1 (fr) * 2012-07-18 2014-01-23 Sts Concept Gmbh Presse rotative offset à module de vernissage et procédé d'impression et de vernissage d'une bande de matériau
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EP2722179A1 (fr) 2012-10-18 2014-04-23 KBA-NotaSys SA Presse d'impression en héliogravure et procédé de surveillance de fonctionnement de celle-ci
EP2746049A1 (fr) 2012-12-20 2014-06-25 KBA-NotaSys SA Procédé de contrôle d'une impression taille-douce et gamme de contrôle à cette fin
DE102013222692A1 (de) * 2013-11-08 2015-05-13 Robert Bosch Gmbh Bahnzugkraftregelung bei Pilgerschrittverfahren
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DE29921184U1 (de) * 1999-12-03 2001-04-12 Web Tech Licensees B.V., Badhoevedorp Satellitendruckmaschine zum Bedrucken von Bogen und Bahnen
US6993149B2 (en) * 2001-09-25 2006-01-31 Digimarc Corporation Embedding digital watermarks in spot colors
DE10038551A1 (de) * 2000-08-03 2002-02-14 Roland Man Druckmasch Ermittlung der Voreinstelldaten für das Schnittregister (und das Farbregister) für längswellenlose Druckwerke
JP2003186647A (ja) * 2001-12-20 2003-07-04 Riso Kagaku Corp 印刷データ出力装置およびプログラム
EP1400353A1 (fr) 2002-09-19 2004-03-24 Kba-Giori S.A. Machine d'impression en creux
AU2004252148A1 (en) * 2003-06-23 2005-01-06 The Procter & Gamble Company Process for producing highly registered printed images and embossment patterns on stretchable substrates
JP2005059259A (ja) * 2003-08-08 2005-03-10 Komori Corp 凹版印刷機
DE10354432A1 (de) * 2003-11-21 2005-06-09 Goss International Montataire S.A. Verfahren zum Steuern der Zufuhr einer Bedruckstoffbahn in eine Druckmaschine
EP1543962B1 (fr) * 2003-12-19 2006-11-29 Fischer & Krecke Gmbh & Co. Cylindre d'héliogravure
DE102005007435A1 (de) * 2005-02-18 2006-08-24 Bosch Rexroth Ag Verfahren zum Durchführen einer Druckkorrektur und Vorrichtung hierfür
DE102005041651A1 (de) * 2005-09-02 2007-03-22 Bosch Rexroth Aktiengesellschaft Verfahren zur Druckkorrektur
JP5111772B2 (ja) * 2006-03-24 2013-01-09 株式会社沖データ 印刷装置
US7222436B1 (en) 2006-07-28 2007-05-29 The Procter & Gamble Company Process for perforating printed or embossed substrates
EP1995062A1 (fr) * 2007-05-25 2008-11-26 Kba-Giori S.A. Systèmes de presse d'impression intaglio pour impression recto-verso en creux de feuilles, en particulier pour la fabrication de billets de banque et titres similaires
CN101759053B (zh) * 2009-05-11 2013-02-13 天津长荣印刷设备股份有限公司 转换间歇与连续输送卷筒材料的储料装置及其工作方法
JP5714218B2 (ja) * 2009-05-19 2015-05-07 株式会社小森コーポレーション 凹版印刷機
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CN105644119B (zh) * 2015-12-24 2017-11-03 大连理工高邮研究院有限公司 一种制作硬质碳/石墨毡筒材的自动化成型设备及方法
CN106956953A (zh) * 2016-01-11 2017-07-18 天津市北辰区金达纸业纸品厂（普通合伙） 一种彩色印刷机
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Cited By (67)

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GB2275021B (en) * 1993-02-10 1996-03-20 Heidelberger Druckmasch Ag Rotary printing press for the two-sided printing of sheets
GB2275021A (en) * 1993-02-10 1994-08-17 Heidelberger Druckmasch Ag Rotary printing press for the two-sided printing of sheets
US5467710A (en) * 1993-02-10 1995-11-21 Heidelberger Druckmaschinen Ag Rotary printing press for two-sided printing of sheets
GB2275020A (en) * 1993-02-10 1994-08-17 Heidelberger Druckmasch Ag Rotary printing press for the two-sided printing of sheets
US5479856A (en) * 1993-02-10 1996-01-02 Heidelberger Druckmaschinen Ag Rotary printing press for two-sided printing of sheets
GB2275020B (en) * 1993-02-10 1996-01-03 Heidelberger Druckmasch Ag Rotary printing press for the two-sided printing of sheets
US5540146A (en) * 1994-05-20 1996-07-30 De La Rue Giori S.A. Web-fed printing machine having a register device for aligning the paper web
CH688137A5 (de) * 1994-05-20 1997-05-30 De La Rue Giori Sa Rotations-Rollendruckmaschine mit einer Registervorrichtung zum Ausrichten der Papierbahn.
EP0683123A1 (fr) * 1994-05-20 1995-11-22 De La Rue Giori S.A. Machine rotative d'impression pourvue d'un dispositif de repérage pour aligner la bande de papier
EP0718099A2 (fr) 1994-12-24 1996-06-26 Armin Steuer Machine rotative pour gaufrer
US5611272A (en) * 1994-12-24 1997-03-18 Steuer; Armin Rotary embossing machine
EP0718099A3 (fr) * 1994-12-24 1997-04-16 Armin Steuer Machine rotative pour gaufrer
CN1096356C (zh) * 1997-04-14 2002-12-18 吉奥里大街公司 凹版印刷机
EP0873866A1 (fr) * 1997-04-14 1998-10-28 De La Rue Giori S.A. Machine taille-douce
US5899145A (en) * 1997-04-14 1999-05-04 De La Rue Giori S.A. Intaglio printing press
AU726923B2 (en) * 1997-04-14 2000-11-23 Kba-Notasys Sa Intaglio printing press
EP1136258A3 (fr) * 2000-03-23 2002-08-14 MAN Roland Druckmaschinen AG Méthode de fonctionnement d'une machine d'impression rotative avec appareil de pliage
EP1136258A2 (fr) * 2000-03-23 2001-09-26 MAN Roland Druckmaschinen AG Méthode de fonctionnement d'une machine d'impression rotative avec appareil de pliage
KR100904791B1 (ko) 2001-11-27 2009-06-25 케이비에이-지오리 에스.에이. 요판에 의한 인쇄장치
WO2007060624A1 (fr) 2005-11-28 2007-05-31 Kba-Giori S.A. Machine d'impression alimentee en feuilles ou en nappe
US8800447B2 (en) 2005-11-28 2014-08-12 Kba-Notasys Sa Sheet-fed or web-fed printing machine
EP1842665A1 (fr) 2006-04-04 2007-10-10 Kba-Giori S.A. Procédé de production de papiers de sécurité, machine d'impression héliogravure pour réaliser ledit procédé et papier de sécurité produit selon ledit procédé
EP2065187A1 (fr) 2006-04-04 2009-06-03 Kba-Giori S.A. Procédé de production de papiers de sécurité, machine d'héliogravure pour réaliser ce procédé, et papier de sécurité produit par ce procédé
EP1958769A1 (fr) * 2007-02-15 2008-08-20 Kba-Giori S.A. Procédé et appareil pour la formation d'un motif d'encre montrant un gradient d'encre bidimensionnel
CN101626895B (zh) * 2007-02-15 2011-09-28 卡巴-乔利有限公司 用于形成呈现二维油墨梯度的油墨图案的方法和装置
WO2008099330A3 (fr) * 2007-02-15 2008-12-18 Kba Giori Sa Procédé et appareil pour former un motif d'encre présentant un gradient d'encre à deux dimensions
RU2444441C2 (ru) * 2007-02-15 2012-03-10 КБА-НотаСис СА Способ и устройство для создания изображения печатной краской, имеющего двумерный градиент печатной краски
US8499690B2 (en) 2007-02-15 2013-08-06 Kba-Notasys Sa Method and apparatus for forming an ink pattern exhibiting a two-dimensional ink gradient
EP2119527A1 (fr) 2008-05-16 2009-11-18 Kba-Giori S.A. Procédé et système pour la fabrication de plaques d'impression en creux pour la production de papiers sécurisés
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EP2159069A1 (fr) 2008-08-29 2010-03-03 Kba-Giori S.A. Procédé de vernissage de documents de sécurité, spécialement des documents de sécurité imprimés en creux tels que des billets de banque, et machine de vernissage pour l'effectuer
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Also Published As

Publication number Publication date
ATE113898T1 (de) 1994-11-15
CA2022550A1 (fr) 1991-03-01
DE59007684D1 (de) 1994-12-15
EP0415881A3 (en) 1991-06-12
AU6193090A (en) 1991-03-07
RU1838151C (ru) 1993-08-30
KR0163768B1 (ko) 1999-03-30
EP0415881B1 (fr) 1994-11-09
UA18594A1 (uk) 1997-12-25
AU630498B2 (en) 1992-10-29
JP2919025B2 (ja) 1999-07-12
CN1049999A (zh) 1991-03-20
KR910004354A (ko) 1991-03-28
JPH03118155A (ja) 1991-05-20
CN1026079C (zh) 1994-10-05
DD297367A5 (de) 1992-01-09
CA2022550C (fr) 2000-02-29
US5062360A (en) 1991-11-05

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