EP1440351B1 - Satellite printing machine - Google Patents

Satellite printing machine Download PDF

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Publication number
EP1440351B1
EP1440351B1 EP03766350A EP03766350A EP1440351B1 EP 1440351 B1 EP1440351 B1 EP 1440351B1 EP 03766350 A EP03766350 A EP 03766350A EP 03766350 A EP03766350 A EP 03766350A EP 1440351 B1 EP1440351 B1 EP 1440351B1
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EP
European Patent Office
Prior art keywords
digital printing
printing machine
printing
feed device
gripper
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP03766350A
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German (de)
French (fr)
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EP1440351A1 (en
Inventor
Ebe Hesterman
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Schober GmbH Werkzeug und Maschinenbau
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Individual
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6555—Handling of sheet copy material taking place in a specific part of the copy material feeding path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/22—Clamps or grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J2025/008—Actions or mechanisms not otherwise provided for comprising a plurality of print heads placed around a drum

Definitions

  • the invention relates to a device for direct digital printing in single pass of multicolor images on sheets in perfecting and / or perfecting.
  • the four process colors cyan, magenta, yellow and black (C, M, Y, K) are added as standard with a customer-specific special color.
  • C, M, Y, K cyan, magenta, yellow and black
  • the Pantone reference value can not be adjusted.
  • the complementary red, green and blue (R.G.B.) of the 7-color HIFICOLOR system, or the additional colors orange and green in 6-color hexachrome systems are increasingly being used. This also has the advantage that 95% of the Pantone colors can be printed, without the time-consuming cleaning of the printing units associated with job changes.
  • the CH 116 828 describes conventional offset printing units with plate and blanket cylinders which are format-related and thus both with clamping channels.
  • a 2x 7-color press in medium format is unrealistically large both in the satellite, as well as in modular arrangement (see FIG. 15 and 16 ).
  • Change of motif means the time-consuming plate change and mostly print wash for other custom Pantone colors.
  • the DE 21 15 790 A1 also describes conventional offset and / or high-pressure processes, ie with format-related plate cylinders with clamping channels and the above-mentioned disadvantages.
  • the DE 199 12 309 A1 shows an example of an overlong (approximately 25 m) modular machine ( US 6,443,058 B1 ). Furthermore, the shows DE 100 47 040 A1 a satellite arrangement with only 4 printing units and a connected printing unit with the necessary coupling device. This machine disadvantageously requires a second pass for the reverse printing (about 90-95% of the commercial prints are perfecting). And is also unsuitable for 7-color printing with downstream finishing.
  • the US 5,016,056 discloses a sheet transport without formatted gripper systems and does not assume the very precise sheet gripper transport systems with protruding gripper backs that would damage the imaging cylinder but a vacuum bar that holds the sheet on the plant side and does not survive. Concerning tolerance of the precision of the investment pass, the factor 2 to 4 would have to be reckoned with here as well, larger for the sheet feeding and transport system, than for printing processes with conventional gripper technology. In addition, there are limits to the substrate flexibility, sheet format and sheet thickness of the printing system with these non-gripper system. The ends of the bow are held with vacuum. This has the disadvantage that only sheets of a fixed circumferential length can be printed ("secures the ends of a receiving sheet").
  • the DE 195 36 359 A1 shows an endless transport without gripper systems, which also has to be reckoned with plant and transport pass tolerances, which are the factor 2 to 4 larger than in sheet handling and transport systems with conventional gripper technology.
  • the CH 116,828 allows duplex printing in one pass, but only at half the production speed because "one sheet can be fed at least every other revolution".
  • the EP 819 268 B1 discloses a digital printing unit according to the so-called multipass system, wherein the intermediate cylinder, however, repeatedly passes through the same printing gap and transmits in clocked feed the sheet in a so-called single shot method in a constructed on the blanket cylinder multicolor image on the substrate.
  • the associated productivity is therefore very low.
  • the repeated transfer on the intermediate cylinder could adversely affect the register accuracy, for example, by small Aufwölbungs / speed differences in the repeated passage through the pressure column.
  • the imaging cylinder is equipped with a clamping channel and designed for exchangeable plates or cylindrical milling for clamping or for holding the plate.
  • the so-called Photo Imaging Plate must be changed regularly for wear reasons. This design means that it is formatted and therefore, if taken in a satellite construction, for accessibility reasons (change of plate and blanket) could not accommodate more than four printing units ( DE 43 03 796 A1 ).
  • the US 6,363,234 B2 presents a satellite version with format-bound printing units / Printengines, which for reasons of accessibility to max. 4 are limited. She has About a special turning technique, which works only at half the productivity.
  • the US 6,074,112 shows a digital printing machine for non-contact printing for continuous webs therefore does not require gripper transport.
  • the US 3,797,929 shows a digital printing machine in which grippers are positioned below the circle diameter of the drum.
  • the peculiarity of non-contact direct digital printing e.g. B. innovatively exploited in the inkjet process that does not have to match the print length.
  • the printing unit can be smaller than the printing length would require.
  • This special feature allows a very compact innovative design using gripper-sheet transport systems for multi-color hi-fi printing on front and back in combination with multiple paint application and with or without inline finishing in a single production pass so-called single pass system with absolutely minimal set-up times with optimal ergonomic Operating conditions (very small footprint) and cost-effective production and operation.
  • the satellite printing machine is equipped with a FIG. 1 or two FIG. 2 provided central, transport cylinder, in the direction of rotation between the feed cylinder or feed rollers having feed system and the dispensing system, a number of at least 1 to ten satellite printing units for the Perfecting can be assigned and can cooperate with another 1 to 10 satellite printing works for the perfecting.
  • Such a machine structure allows a single- or multi-color perfect printing and / or reverse printing on sheet-shaped printing material that can be printed in one pass without additional turning technique.
  • the printing press can be adapted to variable thicknesses of the printing media by radial adjustment of the supply, printing, intermediate and delivery cylinders (arrow Y).
  • the compact design of the satellite printing machine enables a printing process under uniform conditions for the printing material, which passes after accurate entry with aligning at a standstill by means of known side and front, the intermediate cylinder registered. Therefore, the satellite printing machine according to the invention can realize high cycle rates and full printing speed in sheetfed printing, with high print quality and low setup time can be achieved. With this system, a full-format printing of both the perfecting and the Widertikweite of the sheet is possible, with only one required for the gripper closure edge strip is necessary, which can not be detected by the pressure surface of the plate cylinder circumference. This significantly reduces paper loss.
  • the satellite printing machine is thereby also for difficult to handle print material such as cardboard, plastics, multi-layer packaging o. The like. Can be used. This operation is performed without turning the bows, which also results in more accurate register (passer) tolerances.
  • the gripper transport device can be lowered in the transport device (theoretically up to a maximum of below the surface of the cylinder) at the moment it is printed. This allows the digital printing units to be set at a minimum distance to the substrate. In conventional printing processes, the grippers are not lowered. In DE-A-1015680 the grippers are arranged adjustable, but this is the arch disadvantageously released temporarily.
  • FIG. 18 shows the deformation of the substrate.
  • FIG. 19 shows FIG. 19 wherein the cylinder is covered with an elastic material, e.g. B. with self-adhesive blanket to allow the necessary reduction, with minimal deformation of the substrate.
  • an elastic material e.g. B. with self-adhesive blanket to allow the necessary reduction, with minimal deformation of the substrate.
  • inkjet heads are set about 0.8 to 1 mm from the substrate.
  • this elastic layer should allow a reduction of 1 to 2.2 mm with minimal deformation of the substrate.
  • the deformation takes place anyway in the non-printing zone, in the so-called gripper edge, so that no additional waste arises. It is conceivable that in addition to the compressible effect of the elastic layer resilient elements are used.
  • Vacuum gripper with lowerable bow stops.
  • the attack could, for. B. are controlled by conventional curves, so that the stops sink into the conveyor belt during the printing process. At this time, the sheet is held by the vacuum of the vacuum strip below the perforated conveyor belt, so that no bow shifts occur. It is conceivable that the attacks sink with a tilting and / or rotational movement.
  • the system and delivery drum are positioned as high as possible to the conveyor belt for optimum sheet transfer.
  • the conveyor belt has mechanical grippers and / or suckers (as well as conventional turning drums).
  • the transfer of mechanical gripper and vacuum gripper requires support with vacuum cleaner, as this is state of the art, in sheet turning system 56, 57, 58 FIG. 9 ,
  • the sheet transfer with a vibration system 7 is not as good as a slide-in or feed system 81, the leads the substrate sheet directly onto the vacuum belt 54.
  • grippers are used, which require space in the transfer drum 75, or in the vacuum belt, or vacuum drum with suction air.
  • FIG. 8 No grippers are used.
  • the sheet is driven against the retractable stops and are in the extent very accurately ⁇ 0.05 mm and laterally about ⁇ 0.1 mm. If the stop is only 0.5 mm high, a substrate sheet of 0.3 - 0.4 mm thickness can be applied. For this purpose, a known cover system between the attacks is used (not shown).
  • format-related backing rolls can be arranged to stabilize the conveyor belt and / or to act as a type of indirect backup roll (below the conveyor belt). These backup rolls have the gripper receiving recesses.
  • printing works for perfecting can be arranged successively with or without a surface drying. Furthermore, a complete printing unit is installed per (process) ink and thus the color separations in the so-called SINGLE PASS SYSTEM are printed in perfecting.
  • cassette units e.g. for the conditioning, the coating, the paint job, an offprint, the drying and a rewetting.
  • the printing and conditioning systems are arranged in cassette trays. For optimal accessibility in the working position within the machine frame and at service position on the operating side and / or drive side outside the machine frame is given.
  • a single feeder and a single delivery various substrates can be easily and non-stop using paper cassette so-called Sheettrays.
  • a particularly advantageous effect of this innovative printing press and this method is the particularly low power consumption, estimated only about 20% of the consumption of about 300 KW / St. one of the conventional presses with drives for 35 mtr. Length, intermediate and final dryers and tempering systems for the printing units
  • FIG. 1 a designated 1 satellite printing machine, which has two transport cylinders 2a and 2b, with a cleaning system R and six satellite printing units S for the multicolor Perfecting. Also shown is a downstream finishing cassette unit 13.
  • the schematic diagram of the satellite printing machine 1 according to Fig. 1 shows their preferred application for sheet as detectable in the region of the feed cylinder 3 printing material, wherein the transport cylinder 2 and the dispensing system 5 are formed with gripping systems 12.
  • the feed cylinder 3 is also preceded by a Ausrichtisch 7.
  • the concept of the machine 1 is designed so that the feed cylinder 3, transport cylinder 2a and 2b, imaging systems 40 (including paint supply unit 41) and discharge cylinder 5 radially adjustable by means of eccentric bushes (arrow Y) for adaptation during production of variable-thickness substrates. Likewise, linear adjustments are conceivable.
  • FIG. 2 ditto like FIG. 1 , but with enlarged upper transport cylinder 2a, thus additionally a cassette unit for pre-print systems 9, z. B. for conditioning, can be arranged. After printing, a cassette 13, z. B. for finishing (eg paint application) arranged.
  • a cassette 13, z. B. for finishing eg paint application
  • Fig. 3 is clarified the support of one of the cassette units z. B. for finishing 13 in the field of machine frame.
  • the cassette unit is supported on rails 35 and 37 of respective side stand of the machine frame 33.
  • the cartridge units for imaging 39 include an imaging system 40 and a color substrate supply unit 41.
  • the imaging units in the cassette units 39 can be moved to a service position after lift-off of their respective Y in printing position on the transport cylinder 2, without tilting the cassette unit is required. This increases the positional stability of the cartridge units.
  • FIGS. 5 and 6 is shown in a schematic representation of a drive concept in the field of printing press 1, the delivery system 14 and the punching device 27.
  • FIG. 7 is a schematic representation of how FIG. 1 , but only for one-sided (simplex printing).
  • FIG. 8 is a designated 1 digital sheet-fed press, which has a conveyor belt 54, with a cleaning system R and six satellite printing units S for the multicolor Perfecting.
  • the schematic diagram of the satellite printing machine 1 according Fig. 8 shows their application for sheet as detectable in the region of the feed cylinder 3 printing material, wherein the feed cylinder 3 with swing gripper 8 (alternatively, the insertion feeder 81 with transport rollers 82), conveyor belt 54 and the dispensing system 5 with gripper systems 12 and / or suction 59 are formed.
  • the feed cylinder 3 (alternatively, the slide-in feeder 81) is also preceded by a Ausrichtisch 7, and in FIG. 1 is shown and described.
  • the insertion or feed feeder 81 differs from the system with feed cylinder 3 with oscillating gripper 7 in that the substrate sheet is applied precisely and directly against the stop 64 via side mark 83 and feed rollers 83. There are no grippers used and accordingly no gripper openings in the transfer drum 75 are necessary.
  • the sheet is taken over by the transfer drum 75 with integrated vacuum system 73 and vacuum gripper and fixed over the entire surface with the vacuum system.
  • the first flexo printing unit is used, eg. For example, for coating with white paint for plastics, to be dried with the intermediate dryer 11 following. Below, for example, 6 Inkjetköpfe were added, which print the substrate without contact and with the second, z. B. UV dryer, to be dried. Subsequently, with a second Flexowerk, z. As a protective coating applied to be dried with the double end dryer. The acquisition of the sheet takes place only after the whole sheet is printed to avoid distortions of the printed image by the gripper transfer, this is the so-called. 7 o'clock position. On the lower circulation, a cleaning system is integrated.
  • the illustrated backup rolls serve as an indirect impression cylinder for the flexo high pressure units, which are known to be in contact and work with pressure. These backup rolls are format-related and have a chip channel.
  • the vacuum gripper systems will be used limited, z. B. only for thinner substrates, and z. B. Documents in the office area up to max. 250 grams per m 2 . Not shown are the anilox rollers 30 and chamber doctor blade 31, as well as they are drawn and described in FIG. 3 , It is conceivable that the vacuum box in the range of pressure range slightly curved upwards (with a curvature) for optimal application of the substrate sheet (not shown).
  • FIG. 9 is a schematic representation of how FIG. 7 in a twin installation with an intermediate sheet turning device, with turning transfer drum 56, 58 and turning storage drum 57.
  • the drum 56 can be operated at different speeds.
  • FIG. 10 is a schematic representation of how FIG. 8 , but with conventional conveyor belt and format-related support roller per printing unit and downstream second printing unit for the reverse printing.
  • the Väkuumtransportb was selected from the group consisting of the following components: but with conventional conveyor belt and format-related support roller per printing unit and downstream second printing unit for the reverse printing.
  • the Väkuumtransportb could work favorably here.
  • FIG. 11 is a schematic representation of how FIG. 10 but in twin configuration with known turning devices 56, 57, 58 FIG. 9 , This turning device can also be used in the position S / W of FIG. 8 to get integrated. It is conceivable that the arrangement for transport can be positioned horizontally or in a Ypsilon arrangement.
  • Fig. 12 is a schematic representation of how Figure. 7 but with turning device 56, 57, 58 off FIG. 9 ,
  • the production speed of perfecting is only 50%, but the investment is limited by the fact that only one set of printing units is needed, which can adjust digitally to the demands for perfecting.
  • Fig. 13 is a schematic diagram like FIG. 7 , but with turning device and limitation in the perfecting application, such as FIG. 12 ,
  • a sheet feeder 6 is shown with pre-stacking device 61 next to it.
  • Fig. 15 is an imaginary printing machine in satellite design based on the FIG. 1 of the US 5,036,763 .
  • the imaginary press is expanded up to 2 x 7 printing units for hi-fi printing. From the dimension it can be seen that this machine is already in half format (B2) for handling unrealistic scope compared to FIG. 2 would get.
  • the so-called S-wrapping of the stop-drum layout configuration 92 does not meet the requirements of a slender paper run.
  • FIG. 16 an equally imaginary printing machine in modular row construction is shown.
  • an imaginary configuration like FIG. 2 With 2 x 7 colors and coating units and inline finishing, the result would be totally unrealistic dimensions and thus not economic investments in a printing press.
  • FIGS. 17, 18 and 19 is a section with lowering gripper systems shown. Shown are the gripper shaft with lowering gripper 67, gripper back 68, gripper support 69, substrate 66, cylinder body 70 and eccentric control 71. The grippers decrease only slightly, only during the printing process.
  • Fig. 17 the gripper system is shown in the working position for substrate transport 66, wherein the gripper back is above the cylindrical surface and thus prevents a minimum distance of the digital printing units.
  • Fig. 18 For convenience, the lowering gripper system is shown in an exaggerated recessed position for passing the digital printing units.
  • the gripper back 67 are now below the unwinding surface, whereby the digital printing units can be set to a minimum distance to the substrate.
  • the reduction is demonstratively coated to show the theoretical deformation of the substrate.
  • Fig. 19 the transport cylinder is coated with a self-adhesive rubber blanket.
  • the properties of the elastic material allow a maximum lowering of the gripper with minimal deformation of the substrate.
  • Fig. 20 shows the vacuum belt 54 with vacuum gripper and lowerable stop 64.
  • the substrate sheet 66 is gripped / sucked by suction air 65 and vacuum sucked to the conveyor belt.
  • the stop with the help of z. B. cam rollers 38 and z. B. eccentric 71 or z. B. curve 80 are lowered so that the imaging systems, or the digital printing, z.
  • This vacuum system will have a positive effect on the air flow, which is critical in the inkjet process.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
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Abstract

The invention concerns a digital printing machine for direct non-contact sheet printing with a digital printing mechanism with free format in the peripheral direction, and a sheet transport system which is connected downstream of the digital printing mechanism, wherein the sheet transport system has grippers at its periphery holding the sheet. Counterimpression cylinders can be integrated between the sections of transport belts for conventional printing.

Description

Die Erfindung betrifft eine Vorrichtung zum direkten digitalen Druck in Singlepassverfahren von mehrfarbigen Bildern auf Bogen im Schön- und/oder Widerdruck.The invention relates to a device for direct digital printing in single pass of multicolor images on sheets in perfecting and / or perfecting.

Beim Drucken werden im Standard die vier Prozessfarben Cyan, Magenta, Gelb und Schwarz (C, M, Y, K) mit einer kundenspezifischen Sonderfarbe erweitert. Mit dem CYMK-Farbraum ist es leicht möglich, dass der Pantone-Referenzwert nicht nachgestellt werden kann. Um einen größeren Farbumfang im Mehrfarbendruck zu erreichen, werden zunehmend zusätzlich das komplementäre Rot, Grün und Blau (R.G.B.) beim 7-Farben HIFICOLOR System, bzw. die zusätzlichen Farben Orange und Grün bei 6 Farben Hexachromen Systeme, verwendet. Dies ist auch mit dem Vorteil verbunden, dass 95 % der Pantone-Farben gedruckt werden können, ohne die bis jetzt damit verbundene zeitaufwendige Reinigung der Druckwerke beim Auftragswechsel.When printing, the four process colors cyan, magenta, yellow and black (C, M, Y, K) are added as standard with a customer-specific special color. With the CYMK color space, it is easily possible that the Pantone reference value can not be adjusted. In order to achieve a greater color gamut in multicolor printing, the complementary red, green and blue (R.G.B.) of the 7-color HIFICOLOR system, or the additional colors orange and green in 6-color hexachrome systems, are increasingly being used. This also has the advantage that 95% of the Pantone colors can be printed, without the time-consuming cleaning of the printing units associated with job changes.

Der Erfindung liegt der Aufgabe zugrunde, eine neue Generation von Druckmaschinen zu entwickeln, um die neuen Marktanforderungen mit absolut höchster Qualität bei niedrigste Auflagehöhen im POD und Just in Time System zu begegnen, wobei die Vorteile jeweils der konventionellen Bogenoffsettechnik und neuen Digitaltechnik ausgenützt werden müssen, um zukünftig ein wirtschaftliches Produzieren sicher zu stellen. Die Anforderungen sind wie folgt:

  • 1. mit 1 bis zu 7 Digitalen Druckwerken mit vorgeschalteter Reinigungsstation für Hexachrome oder Hifi-Color-Druck Singlepassverfahren;
  • 2. mit integrierte Veredelung mit Schutzlack (100 % der Verpackungen brauchen einseitigen Schutzlack) und alternativ Lackveredelungen vollflächig für Akzidenzdruckwerke und/oder Spezial-Spot-Effektlack. (ca. 20 - 30 % der Aufträge bei dem Akzidenzdrucks werden lackiert);
  • 3. mit Möglichkeit von Personalisierung, bzw. Drucken von variable Daten;
  • 4. mit einer Formatklasse größer wie das Kleinformat (ca. 36 x 50 cm), vorteilhafterweise im 50 x 70, 70 x 100 Format;
  • 5. mit der Möglichkeit zum Bedrucken von Kunststoff und Sandwichsubstraten;
  • 6. mit vollformatigen Duplexdruck auf Vorder- und Rückseite ohne Wendung, bei voller Produktionsgeschwindigkeit. (Bei Akzidenzdruck wird ca. 90 Duplex bedruckt und bei den Verpackungen ca. 5 bis 10 bedruckt und/oder veredelt. (z. B. Rückseitendruck mit Instruktionen, Sicherheitsmerkmalen oder Schutzlack, bzw. Coating für die Innenseite der Verpackung);
  • 7. mit hochwertige Bogenanlage- und Greifer- Bogentransportsysteme für bogenoffsetähnliche Anlage und Übergabepasser mit minimaler Greiferwechsel, bzw. Greiferübergabe;
  • 8. hochwertige Anordnung der Digitalen Druckwerke und Auslageanordnung in der sogenannten 7-Uhr Position, um eine perfekte unverzerrte Druckabwicklung zu ermöglichen (Tangenten Funktion);
  • 9. hochwertige Anordnung und Antrieb der Digitalen Druckwerke für extrem hohe Registergenauigkeit und zwar sowohl auf einer Seite zum Mehrfarbendruck als auch zwischen Vorder- und Rückseitendruck.
  • 10. geradlinige (Schlanke) Bogenführung für max. Bedruckstoffflexibilität;
  • 11. eine Stabilität mit minimaler Betriebsschwingung für optimale Druckqualität;
  • 12. abschmierfreie Bogenführung;
  • 13. gute Zugänglichkeit der einzelnen Maschinenelemente;
  • 14. mit durch Greiferübernahme registergenauen, inline Veredelung, wie z. B. Heißfolienprägen und/oder Stanzen und/oder Stapeln oder inline Falzen oder inline Buchbinden;
  • 15. die in einer Familie von Druckmaschinen die Synergie von gemeinsamen Teilen, Baugruppen und Software für Serien-produktion voll ausnutzt für kostengünstige Production;
  • 16. eine Baugröße für Ein-Mann-Bedienung, vorteilhafter Weise eine Maschinenlänge von max. ca. 7 m und einer Maschinenhöhe von max. ca. 2,75 m.
The invention has for its object to develop a new generation of printing presses to meet the new market requirements with absolute highest quality at lowest support heights in the POD and Just in Time system, the advantages of each of the conventional Bogenoffsettechnik and new digital technology must be exploited to ensure economic production in the future. The requirements are as follows:
  • 1. with 1 to 7 digital printing units with upstream cleaning station for Hexachrome or hi-fi color printing single-pass method;
  • 2. with integrated refinement with protective varnish (100% of the packaging needs unilateral protective varnish) and alternatively varnish varnishes over the entire surface for Commercial printers and / or special spot effect paint. (about 20 - 30% of jobs in commercial printing are painted);
  • 3. with possibility of personalization, or printing of variable data;
  • 4. with a format class larger than the small format (about 36 x 50 cm), advantageously in 50 x 70, 70 x 100 format;
  • 5. with the possibility of printing on plastic and sandwich substrates;
  • 6. With full-format duplex printing on front and back without twist, at full production speed. (For commercial printing, about 90 duplex is printed and the packaging is printed and / or finished with about 5 to 10 (eg backside printing with instructions, security features or protective coating, or coating for the inside of the packaging);
  • 7. with high-quality sheetfed and gripper-sheet transport systems for sheet-offset-like installation and transfer register with minimal gripper change or gripper transfer;
  • 8. high-quality arrangement of the digital printing units and display arrangement in the so-called 7 o'clock position, in order to allow perfect undistorted printing (tangent function);
  • 9. High-quality arrangement and drive of the digital printing units for extremely high registration accuracy, both on one side for multi-color printing and between front and back page printing.
  • 10. straight (slender) sheet guide for max. substrate flexibility;
  • 11. stability with minimal operating vibration for optimum print quality;
  • 12. smear-free sheet guide;
  • 13. good accessibility of the individual machine elements;
  • 14. with register by grab grabber registration, inline finishing, such. B. hot foil stamping and / or punching and / or stacking or inline folding or inline bookbinding;
  • 15. Taking full advantage of the synergy of common parts, assemblies and serial production software in a family of presses for cost-effective production;
  • 16. a size for one-man operation, advantageously a machine length of max. approx. 7 m and a machine height of max. about 2.75 m.

Die CH 116 828 beschreibt konventionelle Offsetdruckwerke mit Platten- und Gummituchzylinder die formatbezogen sind und somit beide mit Spannkanäle. Eine 2x 7 Farben Druckmaschine im Mittelformat ist sowohl im Satelliten, als auch in Modulare Anordnung unrealistisch groß (siehe Figur 15 und 16). Motivwechsel bedeutet den aufwendigen Plattenwechsel und meistens Druckwerkwaschen für andere kundenspezifische Pantonefarben.The CH 116 828 describes conventional offset printing units with plate and blanket cylinders which are format-related and thus both with clamping channels. A 2x 7-color press in medium format is unrealistically large both in the satellite, as well as in modular arrangement (see FIG. 15 and 16 ). Change of motif means the time-consuming plate change and mostly print wash for other custom Pantone colors.

In der DE 100 47 040 A1 werden ebenso nicht digital Druckwerke offenbart, sondern Offsetdruckwerke, die zwar online digital belichtet werden jedoch mit konventionellen formatgebundenen Platten-und Gummituchzylinder mit den oben genannten Nachteilen.In the DE 100 47 040 A1 are also not digitally printed works disclosed, but offset printing, although digitally exposed online but with conventional format-bound plate and blanket cylinder with the disadvantages mentioned above.

Die DE 21 15 790 A1 beschreibt ebenso konventionellen Offset-und/oder Hochdruckverfahren, d. h. mit formatbezogene Plattenzylinder mit Spannkanäle und den oben genannten Nachteilen.The DE 21 15 790 A1 also describes conventional offset and / or high-pressure processes, ie with format-related plate cylinders with clamping channels and the above-mentioned disadvantages.

Die DE 199 12 309 A1 zeigt ein Beispiel einer überlangen (ca. 25 m) modular aufgebauten Maschine ( US 6, 443, 058 B1 ). Ferner zeigt die DE 100 47 040 A1 eine Satellitenanordnung mit nur 4 Druckwerken und einem zugeschalteten Druckwerk mit dazu notwendigen Kupplungseinrichtung. Diese Maschine benötigt für den Widerdruck nachteiligerweise einen zweiten Durchgang (ca. 90 - 95 % der Akzidenzdrucke sind Schön- und Widerdruck). Und ist auch für 7 Farben Druck mit nachgeschalteten Veredelung ungeeignet.The DE 199 12 309 A1 shows an example of an overlong (approximately 25 m) modular machine ( US 6,443,058 B1 ). Furthermore, the shows DE 100 47 040 A1 a satellite arrangement with only 4 printing units and a connected printing unit with the necessary coupling device. This machine disadvantageously requires a second pass for the reverse printing (about 90-95% of the commercial prints are perfecting). And is also unsuitable for 7-color printing with downstream finishing.

In der DE 21 15 790 A1 ist noch eine Bauform oder Druckmaschinenkonzept dargestellt, womit zwar ein Duplexdruck ion einem Arbeitsgang möglich ist, aber es handelt sich hier um die Kombination von formatbezogenen Platten-, Bebilderungssystemen in Kombination mit konventionellen formatbezogenen Gummituchzylindern. Diese Bauform ermöglicht es nicht bis zu 2 x 7 Druckwerke zu integrieren, geschweige von weiteren Modulen für Beschichtung ohne das der Bauform aus Bedienungssicht, bzw. die der Ergonomie das Ausmaß der Handhabung übersteigt (siehe Figur 15).In the DE 21 15 790 A1 is still a design or press design presented, whereby a duplex printing ion one operation is possible, but this is the combination of format-related plates, imaging systems in combination with conventional format-related blanket cylinders. This design makes it possible not to integrate up to 2 x 7 printing units, let alone other modules for coating without the design from an operating perspective, or the ergonomics of the extent of handling exceeds (see FIG. 15 ).

Bei bekannten Satellitendruckmaschinen ( WO 01/39976 A1 ) wurden nicht die o. g. Anforderungen des Digitaldrucks berücksichtigt hinsichtlich den nicht formatgebundenen Bebilderungszylindern. Es ist basiert auf formatgebundene Hebilderungszylinder und nützt daher nicht der möglich sehr kompakten Bauweise aus, sowie bei dieser erfinderischen Maschine möglich.In known satellite printing machines ( WO 01/39976 A1 ), the above-mentioned requirements of digital printing were not taken into account with regard to the non-format-bound imaging cylinders. It is based on format-bound lifting cylinder and therefore does not take advantage of the possible very compact design, as well as possible in this inventive machine.

Die US 5,016,056 offenbart einen Bogentransport ohne formatgebundene Greifersystemen und geht nicht aus von den sehr präzisen Bogen-Greifertransportsystemen mit überstehende Greiferrücken, die den Bebilderungszylinder beschädigen würden sondern von einer Vakuumleiste, die den Bogen an der Anlageseite festhält und nicht übersteht. Bezüglich Toleranz der Präzision des Anlagepassers müsste auch hier mit dem Faktor 2 bis 4 gerechnet werden, größer bei Bogenanlage- und Transportsystem, als bei Druckverfahren mit konventioneller Greifertechnik. Außerdem sind mit diesen nicht Greifersystem Grenzen gesetzt, an die Bedruckstoffflexibilität, Bogenformat und Bogenstärke des Drucksystems. Auch die Enden des Bogens werden mit Vakuum gehalten. Das hat den Nachteil, dass nur Bögen von einer festen Umfangslänge gedruckt werden können ("secures the ends of a receiving sheet").The US 5,016,056 discloses a sheet transport without formatted gripper systems and does not assume the very precise sheet gripper transport systems with protruding gripper backs that would damage the imaging cylinder but a vacuum bar that holds the sheet on the plant side and does not survive. Concerning tolerance of the precision of the investment pass, the factor 2 to 4 would have to be reckoned with here as well, larger for the sheet feeding and transport system, than for printing processes with conventional gripper technology. In addition, there are limits to the substrate flexibility, sheet format and sheet thickness of the printing system with these non-gripper system. The ends of the bow are held with vacuum. This has the disadvantage that only sheets of a fixed circumferential length can be printed ("secures the ends of a receiving sheet").

Die DE 195 36 359 A1 zeigt einen endlosen Transport ohne Greifersysteme, wobei gleicherweise zu rechnen ist mit Anlage- und Transportpassertoleranzen, die den Faktor 2 bis 4 größer sind als bei Bogen Anlage- und Transportsysteme mit konventioneller Greifertechnik.The DE 195 36 359 A1 shows an endless transport without gripper systems, which also has to be reckoned with plant and transport pass tolerances, which are the factor 2 to 4 larger than in sheet handling and transport systems with conventional gripper technology.

Die CH 116,828 erlaubt einen Duplexdruck in einem Durchgang, aber nur bei halber Produktionsgeschwindigkeit, da "mindestens nach jeder zweiten Umdrehung ein Bogen zugeführt werden kann".The CH 116,828 allows duplex printing in one pass, but only at half the production speed because "one sheet can be fed at least every other revolution".

Bei bekannten Satellitendruckmaschinen mit Greifertransportvorrichtungen gemäß der DE 43 03 796 A 1 ist die Zahl der Gummi- und Plattenzylinderpaare um einen Druckzylinder aus Gründen der Zugänglichkeit zu den Druckwerken auf vier begrenzt, so dass für Schön- und Widerdruck (Duplexdruck) eine Hintereinanderanordnung von zwei Druckwerken, bzw. Zwillingsstationen vorgesehen werden muss, die über eine Wendeeinheit zu verbinden sind, wie dies beispielsweise auch bei der US-PS-5,660; 108 und der DE-PS-435 902 vorgesehen ist.In known satellite printing machines with gripper transport devices according to the DE 43 03 796 A 1, the number of rubber and plate cylinder pairs is limited to one printing cylinder for reasons of accessibility to the printing units to four, so that for perfecting (duplexing) a series arrangement of two printing units, or twin stations must be provided, via a turning unit are to be connected, as for example in the case of US Patent No. 5,660; 108 and the DE-PS-435 902 is provided.

Bekannt sind bei Digitalen Druckmaschinen von unterschiedliche Konzepte zum Duplexprinting (Vorder- und Rückseitedruck, bzw. Schön- und Widerdruck), z. B. über Wendetasche ( US 5, 552, 875 ) (verbunden mit dem Risiko von Krümmung, Papierstau, Beschädigung, halber Produktivität, bei begrenzter Grammagen und nicht so präzise), Zwillingsinstallation (verbunden mit Inflexibilität, großer Investition und vielen Greiferübergaben) oder Systeme mit halber Breite oder halbem Umfang.Are known in digital printing machines of different concepts for Duplexprinting (front and back printing, or perfecting), z. B. over turning pocket ( US 5,552,875 ) (associated with the risk of curvature, paper jam, damage, half productivity, limited grammages and not so precise), twin installation (associated with inflexibility, large investment and many gripper handovers) or half-width or half-size systems.

Bekannt bei Bogendruckmaschinen sind Wendesysteme ( DE 298 07 663 U1 ) zum Bedrucken der Bögen auf der Schön- und Widerdruckseite (Recto Verso). Diese Systeme sind aufwendig, machen die Maschine durch ihre fixe Position unflexibel, sind kostenaufwendig und benötigen einen Weißrand (Greiferrand) an beiden Seiten der Bögen. Außerdem ist die registergenaue Bogenführung (Wendepasser) extrem schwierig, was zu Ungenauigkeiten führt. Es limitiert auch die Bedruckstoffflexibilität in der Stärke des Substrate.Turning systems are known for sheet-fed printing machines ( DE 298 07 663 U1 ) for printing the sheets on the Schön- and Reverse side (recto verso). These systems are complex, make the machine by its fixed position inflexible, are expensive and require a white edge (gripper edge) on both sides of the sheets. In addition, the register accurate bowing (Wendepasser) is extremely difficult, resulting in inaccuracies. It also limits the substrate flexibility in the thickness of the substrates.

Dennoch ist es denkbar, dass für Anwendungen, z. B. bei denen nur gelegentlich Duplexdruck verlangt wird ein herkömmliches Wendetrommelsystem zu integrieren, wobei dann der o. g. Nachteile in Kauf genommen werden müsste.Nevertheless, it is conceivable that for applications such. B. in which only occasionally duplex printing is required to integrate a conventional turning drum system, in which case the o. G. Disadvantages would have to be accepted.

Die EP 819 268 B1 offenbart ein Digitales Druckwerk nach dem sogenannten Multipasssystem, wobei der Zwischenzylinder jedoch mehrfach den gleichen Druckspalt durchläuft und bei getakteter Zufuhr der Bogen in sogenannten Single Shot Methode in einem das auf dem Gummituchzylinder aufgebaut mehrfarbige Bild auf den Bedruckstoff überträgt. Die damit verbundene Produktivität ist demzufolge sehr gering. Der mehrmalige Transfer auf dem Zwischenzylinder könnte sich nachteilig auf die Registergenauigkeit auswirken, z.B. durch geringe Aufwölbungs/Geschwindigkeitsdifferenzen beim mehrmalige Durchlaufen der Druckspalte. Der Bebilderungszylinder ist mit einem Spannkanal ausgerüstet und ausgelegt für auswechselbare Platten, bzw. Zylindereinfräsung zum Spannen, bzw. zum Halt der Platte. Die sogenannten Photo Imaging Plate muss regelmäßig aus Verschleißgründen gewechselt werden. Diese Konstruktion bedeutet, dass sie formatgebunden ist und damit, wenn in einer Satellitenbauweise aufgenommen aus Zugänglichkeitsgründen (Wechsel von Platte und Gummituch) nicht mehr als vier Druckwerke aufnehmen könnte ( DE 43 03 796 A1 ).The EP 819 268 B1 discloses a digital printing unit according to the so-called multipass system, wherein the intermediate cylinder, however, repeatedly passes through the same printing gap and transmits in clocked feed the sheet in a so-called single shot method in a constructed on the blanket cylinder multicolor image on the substrate. The associated productivity is therefore very low. The repeated transfer on the intermediate cylinder could adversely affect the register accuracy, for example, by small Aufwölbungs / speed differences in the repeated passage through the pressure column. The imaging cylinder is equipped with a clamping channel and designed for exchangeable plates or cylindrical milling for clamping or for holding the plate. The so-called Photo Imaging Plate must be changed regularly for wear reasons. This design means that it is formatted and therefore, if taken in a satellite construction, for accessibility reasons (change of plate and blanket) could not accommodate more than four printing units ( DE 43 03 796 A1 ).

Die US 6,363,234 B2 stellt eine Satelittenbauform mit formatgebundenen Druckwerken/Printengines vor, die aus Zugänglichkeitsgründen auf max. 4 begrenzt sind. Sie verfügt über eine besondere Wendetechnik, welche jedoch nur bei halber Produktivität funktioniert.The US 6,363,234 B2 presents a satellite version with format-bound printing units / Printengines, which for reasons of accessibility to max. 4 are limited. She has About a special turning technique, which works only at half the productivity.

Die US 6,074,112 zeigt eine Digitalendruckmaschine für berührungslosen Druck für Endlosbahnen die deshalb keinen Greifertransport benötigt. Die US 3,797,929 zeigt eine Digitaldruckmaschine bei die Greifer unterhalb des Kreisdurchmessers der Trommel positioniert werden.The US 6,074,112 shows a digital printing machine for non-contact printing for continuous webs therefore does not require gripper transport. The US 3,797,929 shows a digital printing machine in which grippers are positioned below the circle diameter of the drum.

In dem erfinderischen Maschinenkonzept wird die Besonderheit des berührungslosen direkten Digitaldruck, z. B. beim Inkjetverfahren innovativ ausgenützt, dass die nicht mit der Drucklänge übereinstimmen muss. Das Druckwerk kann kleiner sein als die Drucklänge erfordern würde. Diese Besonderheit erlaubt eine sehr kompakte innovative Bauart unter Einsatz von Greifer-Bogentransportsysteme für mehrfarbigen Hi-fi Druck auf Vorder- und Rückseite in Kombination mit mehrfachen Lackauftrag und mit oder ohne Inline-Weiterverarbeitung in einem Produktionsdurchgang sog. Singlepasssystem mit absolut minimale Einrichtzeiten bei optimalen ergonomischen Bedienungsverhältnissen (sehr kleinem Footprint) und kostengünstiger Fertigung und Betrieb.In the inventive machine concept, the peculiarity of non-contact direct digital printing, e.g. B. innovatively exploited in the inkjet process that does not have to match the print length. The printing unit can be smaller than the printing length would require. This special feature allows a very compact innovative design using gripper-sheet transport systems for multi-color hi-fi printing on front and back in combination with multiple paint application and with or without inline finishing in a single production pass so-called single pass system with absolutely minimal set-up times with optimal ergonomic Operating conditions (very small footprint) and cost-effective production and operation.

Die erfindungsgemäße Satellitendruckmaschine ist mit einem Figur 1 oder zwei Figur 2 zentralen, Transportzylinder versehen, dem in Drehrichtung zwischen dem einen Zuführungszylinder oder Zufuhrrollen aufweisenden Zuführungsystem und dem Abgabesystem eine Anzahl von mindestens 1 bis zu zehn Satellitendruckwerke für den Schöndruck zugeordnet sein können und der mit weiteren 1 bis zu 10 Satellitendruckwerken für den Widerdruck zusammenwirken können. Ein derartiger Maschinenaufbau ermöglicht einen ein-oder mehrfarbigen Schöndruck und/oder Widerdruck auf bogenförmigem Druckmaterial, das ohne zusätzliche Wendetechnik in einem Durchlauf bedruckt werden kann.The satellite printing machine according to the invention is equipped with a FIG. 1 or two FIG. 2 provided central, transport cylinder, in the direction of rotation between the feed cylinder or feed rollers having feed system and the dispensing system, a number of at least 1 to ten satellite printing units for the Perfecting can be assigned and can cooperate with another 1 to 10 satellite printing works for the perfecting. Such a machine structure allows a single- or multi-color perfect printing and / or reverse printing on sheet-shaped printing material that can be printed in one pass without additional turning technique.

In vorteilhaften Ausführungen kann die Druckmaschine durch radialer Verstellung der Zufuhr-, Druck-, Zwischen- und Abgabezylinder an variable Dicken der Bedruckstoffe angepasst werden (Pfeil Y).In advantageous embodiments, the printing press can be adapted to variable thicknesses of the printing media by radial adjustment of the supply, printing, intermediate and delivery cylinders (arrow Y).

Der kompakte Aufbau der Satellitendruckmaschine ermöglicht einen Druckvorgang unter gleichmäßigen Durchlaufbedingungen für das Druckmaterial, das nach passgenauem Einlauf mit Ausrichten im Stillstand mittels bekannten Seiten- und Vordermarke, die Zwischenzylinder registergerecht passiert. Daher kann die erfindungsgemäße Satellitendruckmaschine beim Bogendruck hohe Taktzahlen und volle Druckgeschwindigkeit realisieren, wobei auch hohe Druckqualität und niedrige Einrichtezeit erreicht werden. Mit diesem System ist eine vollformatige Bedruckung sowohl der Schön- als auch der Widerdruckweite des Druckbogens möglich, wobei lediglich nur ein für den Greiferschluss erforderlicher Randstreifen notwendig ist, der von der Druckfläche des Plattenzylinderumfanges nicht erfasst werden kann. Damit wird der Papierverlust wesentlich gesenkt. Die Satellitendruckmaschine ist dadurch auch für schwierig handhabbares Druckmaterial wie beispielsweise Kartonagen, Kunststoffe, mehrlagige Verpackungen o. dgl. Einsetzbar. Dieser Vorgang wird ohne Wendung der Bögen ausgeführt, wodurch auch genauere Register (Passer) Toleranzen erreicht werden.The compact design of the satellite printing machine enables a printing process under uniform conditions for the printing material, which passes after accurate entry with aligning at a standstill by means of known side and front, the intermediate cylinder registered. Therefore, the satellite printing machine according to the invention can realize high cycle rates and full printing speed in sheetfed printing, with high print quality and low setup time can be achieved. With this system, a full-format printing of both the perfecting and the Widerdruckweite of the sheet is possible, with only one required for the gripper closure edge strip is necessary, which can not be detected by the pressure surface of the plate cylinder circumference. This significantly reduces paper loss. The satellite printing machine is thereby also for difficult to handle print material such as cardboard, plastics, multi-layer packaging o. The like. Can be used. This operation is performed without turning the bows, which also results in more accurate register (passer) tolerances.

In einer weiteren erfinderischen Ausführung gemäß Figur 17, 18 ist die Greifertransportvorrichtung in der Transportvorrichtung absenkbar (theoretisch bis max. Unterhalb der Zyinderoberfläche) in dem Moment, in dem gedruckt wird. Dadurch lassen sich die digitalen Druckwerke auf minimalen Abstand zum Bedruckstoff stellen. Bei konventionellen Druckverfahren werden die Greifer nicht abgesenkt. In DE-A-1015680 sind die Greifer verstellbar angeordnet, aber dadurch wird der Bogen nachteiliger Weise zeitweise freigegeben.In a further inventive embodiment according to FIG. 17, 18 the gripper transport device can be lowered in the transport device (theoretically up to a maximum of below the surface of the cylinder) at the moment it is printed. This allows the digital printing units to be set at a minimum distance to the substrate. In conventional printing processes, the grippers are not lowered. In DE-A-1015680 the grippers are arranged adjustable, but this is the arch disadvantageously released temporarily.

Die demonstrativ überzogene Absenkung in Figur 18 zeigt die Deformation des Substrates. Ein weiteres erfinderisches Detail zeigt Figur 19, wobei der Zylinder mit einem elastischen Material überzogen ist, z. B. mit selbstklebenden Gummituch, um die nötige Absenkung zu erlauben, bei minimaler Deformation des Substrates. Normalerweise werden Inkjetköpfe ca. 0,8 bis 1 mm vom Substrat eingestellt. Mit einem Greiferrücken von 2 bis 3 mm sollte diese elastische Schicht eine Absenkung von 1 bis 2,2 mm bei minimaler Deformation des Bedruckstoffs erlauben. Die Deformation erfolgt sowieso in der nicht druckenden Zone, im sog. Greiferweissrand, so dass kein zusätzlicher Abfall entsteht. Denkbar ist es, dass zusätzlich zur kompressibelen Wirkung der elastischen Schicht federnde Elemente eingesetzt werden.The demonstratively coated lowering in FIG. 18 shows the deformation of the substrate. Another inventive detail shows FIG. 19 wherein the cylinder is covered with an elastic material, e.g. B. with self-adhesive blanket to allow the necessary reduction, with minimal deformation of the substrate. Normally, inkjet heads are set about 0.8 to 1 mm from the substrate. With a gripper back of 2 to 3 mm, this elastic layer should allow a reduction of 1 to 2.2 mm with minimal deformation of the substrate. The deformation takes place anyway in the non-printing zone, in the so-called gripper edge, so that no additional waste arises. It is conceivable that in addition to the compressible effect of the elastic layer resilient elements are used.

Alternativ zum Transportzylinder ist ein innovatives Vakuumtransportband, vorgesehen mit sog. Vakuumgreifer mit absenkbare Bogenanschläge. Der Anschlag könnte, z. B. über herkömmliche Kurven gesteuert werden, so dass die Anschläge sich während des Druckvorgangs in das Transportband versenken. Zu diesem Zeitpunkt wird der Bogen vom Vakuum der Vakuumleiste unterhalb des perforierten Transportbandes festgehalten, damit keine Bogenverschiebungen auftreten. Denkbar ist, dass die Anschläge sich mit einer Kipp- und/oder Drehbewegung versenken.As an alternative to the transport cylinder is an innovative vacuum conveyor belt, provided with so-called. Vacuum gripper with lowerable bow stops. The attack could, for. B. are controlled by conventional curves, so that the stops sink into the conveyor belt during the printing process. At this time, the sheet is held by the vacuum of the vacuum strip below the perforated conveyor belt, so that no bow shifts occur. It is conceivable that the attacks sink with a tilting and / or rotational movement.

Die Anlage und Auslagetrommel sind für einen optimalen Bogentransfer so hoch wie möglich zum Transportband positioniert. Das Transportband verfügt über mechanische Greifer und/oder Sauger (sowie in den konventionellen Wendetrommeln vorhanden). Die Übergabe von mechanische Greifer und Vakuumgreifer erfordert Unterstützung mit Sauger, sowie dies Stand der Technik ist, bei Bogenwendesystem 56, 57, 58 Figur 9.The system and delivery drum are positioned as high as possible to the conveyor belt for optimum sheet transfer. The conveyor belt has mechanical grippers and / or suckers (as well as conventional turning drums). The transfer of mechanical gripper and vacuum gripper requires support with vacuum cleaner, as this is state of the art, in sheet turning system 56, 57, 58 FIG. 9 ,

Die Bogenübergabe mit einer Schwinganlage 7 eignet sich nicht so gut wie ein Einschub- oder Vorschubanlagesystem 81, das den Substratbogen direkt .auf das Vakuumband 54 führt. Bei der Schwinganlage werden Greifer eingesetzt, die Platz benötigen, in der Übergabetrommmel 75, bzw. in dem Vakuumband, bzw. Vakuumtrommel mit Saugluft. In vorteilhafter Ausführung mit Einschubanlage Figur 8 werden keine Greifer eingesetzt. Der Bogen wird gegen die versenkbaren Anschläge gefahren und liegen in dem Umfang sehr genau ± 0,05 mm und auch seitlich ca. ± 0,1 mm. Wenn der Anschlag nur 0,5 mm hoch ist, lässt sich ein Substratbogen von 0,3 - 0,4 mm Dicke anlegen. Dazu wird ein bekanntes Decksystem zwischen den Anschlägen eingesetzt (nicht dargestellt).The sheet transfer with a vibration system 7 is not as good as a slide-in or feed system 81, the leads the substrate sheet directly onto the vacuum belt 54. In the vibration system grippers are used, which require space in the transfer drum 75, or in the vacuum belt, or vacuum drum with suction air. In an advantageous embodiment with slide-in system FIG. 8 No grippers are used. The sheet is driven against the retractable stops and are in the extent very accurately ± 0.05 mm and laterally about ± 0.1 mm. If the stop is only 0.5 mm high, a substrate sheet of 0.3 - 0.4 mm thickness can be applied. For this purpose, a known cover system between the attacks is used (not shown).

Dort wo auch konventionelle Druckwerke, z. b. zum Beschichten im Flexo-Hochdruckverfahren eingesetzt werden, können formatbezogene Stützwalzen angeordnet werden, um das Transportband zu stabilisieren und/oder als eine Art von indirekte Gegendruckwalze zu fungieren (unterhalb des Transportbands). Diese Stützwalzen weisen die Greiferaufnehmenden Aussparungen auf.Where also conventional printing, z. b. For coating in high-pressure flexographic printing, format-related backing rolls can be arranged to stabilize the conveyor belt and / or to act as a type of indirect backup roll (below the conveyor belt). These backup rolls have the gripper receiving recesses.

Denkbar ist es ebenso das konventionelle Transportbänder oder mehrere Zahnriemen nebeneinander angewendet werden. Stand der Technik sind mechanische Greifer. Die.Ausführung ist jedoch weniger geeignet, da die Digitaldruckwerke dann minimal das Mass der überstehenden Greiferrücken zum Bedruckstoff einhalten müssen. Dann wären pro Druckwerk formatbezogene Stützwalzen nötig, was zur Verlängerung des Transportbandes führen würde, was zu Instabilität und nachteiligerweise zusätzlichen Platzbedarf bedeutet.It is also conceivable that conventional conveyor belts or multiple toothed belts are applied side by side. The state of the art is mechanical grippers. Die.Eusführung is less suitable, since the digital printing units then have to comply minimally the measure of the protruding gripper back to the substrate. Then format-related support rollers would be necessary per printing unit, which would lead to the extension of the conveyor belt, which means instability and disadvantageously additional space.

In der Patentanmeldung US 2002/00980017 ist zu erkennen, dass für Schön- und Widerdruck Digitaldruckwerke eingesetzt werden, die nicht baugleich sind. Eine weitere erfinderische Ausführung ist die Baugleichheit auch bei Schön- und Widerdruck der Bebilderungskassetten, dadurch dass sie bzw. die Maschine konstruktiv vorbereitet ist hinsichtlich, z. B. Antrieb, Schlauchanschluss, usw., für die Montage, sowohl von der Antriebs- als auch von der Bedienungsseite, dadurch kann eine einheitliche Bauform auch für Schön- und Widerdruck funktionieren.In the patent application US 2002/00980017 It can be seen that digital printing works are used for perfecting digital printing, which are not identical. Another inventive design is the design even with perfecting the Bebilderungskassetten, characterized in that it or the machine is structurally prepared in terms of, for. As drive, hose connection, etc., for mounting, both of the drive as well as the operating side, thus a uniform design can also work for perfecting.

Bei der Satellitendruckmaschine können Druckwerke für Schön-und Widerdruck mit oder ohne eine Oberflächentrocknung aufeinanderfolgend angeordnet. Weiterhin ist pro (Prozess) Farbe eine komplette Druckeinheit installiert und somit werden die Farbauszüge im sogenannten SINGLE PASS SYSTEM in Schön- und Widerdruck bedruckt. Beim Einlauf und/oder Auslauf der Tränsportvorrichtung können jeweils vor und/oder nach dem digitalen Druck mehrere Varianten und Ausbaustufen, z.B. in Kassetteneinheiten integriert werden, z.B. für die Konditionierung, die Beschichtung, den Lack Auftrag, einen Sonderdruck, die Trocknung und eine Nachbefeuchtung. Für einen optimalen Bedienungskomfort sind die Druck- und Konditioniersysteme in Kassetteneinschübe angeordnet. Damit ist eine optimale Zugänglichkeit bei der Arbeitsposition innerhalb des Maschinengestells und bei Servicestellung an Bedienungsseite und/oder Antriebsseite außerhalb des Maschinengestells gegeben. Im Papierstapel können ein einziger Anleger und eine einzige Auslage verschiedene Bedruckstoffe mittels Papierkassette sogenannten Sheettrays leicht und non-stop gewechselt werden.In the satellite printing machine, printing works for perfecting can be arranged successively with or without a surface drying. Furthermore, a complete printing unit is installed per (process) ink and thus the color separations in the so-called SINGLE PASS SYSTEM are printed in perfecting. At the entrance and / or exit of the treadmill device, several variants and extension levels, e.g. be integrated into cassette units, e.g. for the conditioning, the coating, the paint job, an offprint, the drying and a rewetting. For optimum ease of use, the printing and conditioning systems are arranged in cassette trays. For optimal accessibility in the working position within the machine frame and at service position on the operating side and / or drive side outside the machine frame is given. In the paper stack, a single feeder and a single delivery various substrates can be easily and non-stop using paper cassette so-called Sheettrays.

Eine besonders vorteilhafte Wirkung dieser innovativen Druckmaschine und dieses Verfahrens ist der besonders geringe Stromverbrauch, geschätzt nur ca. 20 % von dem Verbrauch von ca. 300 KW/St. einer der konventionellen Druckmaschinen mit Antriebe für 35 mtr. Länge, Zwischen- und Endtrocknern und Temperiersystemen für die DruckwerkeA particularly advantageous effect of this innovative printing press and this method is the particularly low power consumption, estimated only about 20% of the consumption of about 300 KW / St. one of the conventional presses with drives for 35 mtr. Length, intermediate and final dryers and tempering systems for the printing units

Die vorgestellt Anordnung mit 6 oder 7 Digitalen Druckwerken mit 1 oder 2 Druckwerke für Beschichtungen ist als Basisausführung dieser Kompaktbauweise zu betrachten. Sollten weitere Druckwerke notwendig sein, können auch Einzelständer mit konventionellen und/oder Digitaldruck vor oder auch diesem Mehrfarbengestell plaziert werden. Eine mögliche Inline Finishing (Fertigung) kann auch die Komplettherstellung von Endprodukten, die z. B. gestanzt, gelocht, perforiert, gefalzt und geschnitten werden, normalisieren.The presented arrangement with 6 or 7 digital printing units with 1 or 2 printing units for coatings is to be regarded as a basic version of this compact design. Should further printing units be necessary, single stands with conventional and / or digital printing can be used before or else placed in this multi-color frame. A possible inline finishing (manufacturing) can also complete the production of end products, the z. B. punched, perforated, perforated, folded and cut, normalize.

Die der Erfindung zugrunde liegende Aufgabe wird durch eine Digitaldruckmaschine gelöst, die die Merkmale des Anspruchs 1 aufweist.The object underlying the invention is achieved by a digital printing machine having the features of claim 1.

Weitere Einzelheiten und vorteilhafte Wirkungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung und den zeichnungen, die Ausführungsbeispiele der erfindungsgemäßen Satellitendruckmaschine veranschaulichen.Further details and advantageous effects of the invention will become apparent from the following description and drawings illustrating embodiments of the satellite printing machine according to the invention.

In der Zeichnung zeigen:

Fig. 1
eine Seitenansicht der erfindungsgemäßen Satellitendruckmaschine mit zwei zentralen Transportzylindern und mit über den Umfang verteilt angeordnete Satellitendruckwerke für den Schön- und Widerdruck mit einem Anleger und einer Auslage vorgesehen für die Kassetten für Bedruckstoff sgn. Sheettrays;
Fig. 2
eine Seitenansicht (Dito wie Fig. 1) mit vergrößerten oberen Transportzylinder mit zugeordneter Pre-Press und nachgeordnete Finishing Kassette und Inline Weiterverarbeitungssystem;
Fig. 3
eine vergrößerte Ausschnittsdarstellung eines der Kassettensystemen für Finishing;
Fig. 4
eine Darstellung eines der Kassettensysteme für Bebilderung in verschiedenen Arbeitsstellungen;
Fig. 5 und Figur 6
eine Prinzipdarstellung der erfindungsgemäßen Satellitendruckmaschine mit einem Antriebskonzept im Bereich der Bogenauslage;
Fig. 7.
eine Seitenansicht prinzipiell wie Fig. 1, jedoch mit nur einem Transportzylinder;
Fig. 8
eine Seitenansicht prinzipiell wie Fig. 7, jedoch mit Transportband statt Transportzylinder, und alternativ Einschubanlage;
Fig. 9.
eine Seitenansicht prinzipiell wie Fig. 7, jedoch in Zwillingsaufstellung:
Fig. 10
eine Seitenansicht prinzipiell wie Fig. 8, jedoch in Zwillingsaufstellung;
Fig. 11
eine Seitenansicht prinzipiell wie Fig. 10, jedoch mit Wendevorrichtung;
Fig. 12
eine Seitenansicht prinzipiell wie Fig. 7, jedoch mit Wendevorrichtung;
Fig. 13
eine Seitenansicht prinzipiell wie Fig. 8, jedoch mit Wendevorrichtung;
Fig. 14
eine Seitenansicht der Vorstapelanlage;
Fig. 15
eine imaginäre doppelte Satellitendruckmaschine;
Fig. 16
eine imaginäre modulare Druckmaschine in Reihenbauweise;
Fig. 17
ein Greifersystem;
Fig. 18
ein Greifersystem in versenkter Position;
Fig. 19
ein Greifersystem mit Transportzylinder mit elastischem Material überzogen;
Fig. 20
ein Vakuumband mit Vakuumgreifer; und
Fig. 21
eine Transportvorrichtung in mehrere Sektionen;
In the drawing show:
Fig. 1
a side view of the satellite printing machine according to the invention with two central transport cylinders and distributed over the circumference arranged satellite printing works for perfecting with a feeder and a delivery provided for the cassettes for substrate sgn. Sheettrays;
Fig. 2
a side view (Ditto like Fig. 1 ) with enlarged upper transport cylinder with associated pre-press and downstream finishing cassette and inline finishing system;
Fig. 3
an enlarged sectional view of one of the cassette systems for finishing;
Fig. 4
a representation of one of the cassette systems for imaging in various working positions;
Fig. 5 and Figure 6
a schematic diagram of the satellite printing machine according to the invention with a drive concept in the field of sheet delivery;
Fig. 7.
a side view in principle like Fig. 1 but with only one transport cylinder;
Fig. 8
a side view in principle like Fig. 7 , but with conveyor belt instead of transport cylinder, and alternatively insertion system;
Fig. 9.
a side view in principle like Fig. 7 , but in twin form:
Fig. 10
a side view in principle like Fig. 8 , but in twin lineup;
Fig. 11
a side view in principle like Fig. 10 but with a turning device;
Fig. 12
a side view in principle like Fig. 7 but with a turning device;
Fig. 13
a side view in principle like Fig. 8 but with a turning device;
Fig. 14
a side view of the pre-stacking system;
Fig. 15
an imaginary double satellite printing machine;
Fig. 16
an imaginary modular printing machine in a row construction;
Fig. 17
a gripper system;
Fig. 18
a gripper system in lowered position;
Fig. 19
a gripper system with transport cylinder coated with elastic material;
Fig. 20
a vacuum belt with vacuum gripper; and
Fig. 21
a transport device in several sections;

In Figur 1 ist eine mit 1 bezeichnete Satellitendruckmaschine dargestellt, die zwei Transportzylinder 2a und 2b aufweist, mit einem Reinigungssystem R und sechs Satellitendruckwerke S für den mehrfarbigen Schöndruck. Dargestellt ist auch eine nachgeschaltete Finishingkassetteneinheit 13.In FIG. 1 is shown a designated 1 satellite printing machine, which has two transport cylinders 2a and 2b, with a cleaning system R and six satellite printing units S for the multicolor Perfecting. Also shown is a downstream finishing cassette unit 13.

Die Prinzipdarstellung der Satellitendruckmaschine 1 gemäß Fig. 1 zeigt deren vorzugsweise Anwendung für Bogen als im Bereich des Zuführungszylinders 3 erfassbares Druckmaterial, wobei der Transportzylinder 2 und das Abgabesystem 5 mit Greifsysteme 12 ausgebildet sind. Dem Zuführzylinder 3 ist außerdem ein Ausrichtetisch 7 vorgeordnet.The schematic diagram of the satellite printing machine 1 according to Fig. 1 shows their preferred application for sheet as detectable in the region of the feed cylinder 3 printing material, wherein the transport cylinder 2 and the dispensing system 5 are formed with gripping systems 12. The feed cylinder 3 is also preceded by a Ausrichtisch 7.

Das Konzept der Maschine 1 ist so ausgeführt, dass die Zufuhrzylinder 3, Transportzylinder 2a und 2b, Bebilderungssysteme 40 (samt Farbezufuhreinheit 41) und Abgabezylinder 5 mittels exzentrischen Büchsen radial verstellbar (Pfeil Y) sind zur Anpassung während der Produktion an variabel dicken Bedruckstoffen. Ebenso sind lineare Verstellungen denkbar.The concept of the machine 1 is designed so that the feed cylinder 3, transport cylinder 2a and 2b, imaging systems 40 (including paint supply unit 41) and discharge cylinder 5 radially adjustable by means of eccentric bushes (arrow Y) for adaptation during production of variable-thickness substrates. Likewise, linear adjustments are conceivable.

In Figur 2 dito wie Figur 1, jedoch mit vergrößerten oberen Transportzylinder 2a, damit zusätzlich eine Kassetteneinheit für Pre-Print Systeme 9, z. B. für Konditionierung, angeordnet werden kann. Nach dem Druck ist eine Kassette 13, z. B. für Finishing (z. B. Lackauftrag) angeordnet.In FIG. 2 ditto like FIG. 1 , but with enlarged upper transport cylinder 2a, thus additionally a cassette unit for pre-print systems 9, z. B. for conditioning, can be arranged. After printing, a cassette 13, z. B. for finishing (eg paint application) arranged.

Dargestellt ist auch die Station für Inline Weiterverarbeitungseinheit 46 die verfahrbar angedeutet ist mit Pfeil G.Shown is also the station for inline finishing unit 46 which is indicated movable with arrow G.

In Fig. 3 ist verdeutlicht die Abstützung einer der Kassetteneinheiten z. B. für Finishing 13 im Bereich des Maschinengestells. Die Kassetteneinheit ist dabei auf Schienen 35 und 37 jeweiliger Seitenständer des Maschinengestells 33 angestützt.In Fig. 3 is clarified the support of one of the cassette units z. B. for finishing 13 in the field of machine frame. The cassette unit is supported on rails 35 and 37 of respective side stand of the machine frame 33.

In Figur 4 weisen die Kassetteneinheiten z.B. für Bebilderung 39 ein Bebilderungssystem 40 und eine Farbsubstratzufuhreinheit 41 auf. Die Bebilderungseinheiten in den Kassetteneinheiten 39 können nach einem Abheben Y ihrer jeweils in Druckstellung am Transportzylinder 2 in eine Servicestellung verschoben werden, ohne das ein Kippen der Kassetteneinheit erforderlich ist. Dies erhöht die Lagestabilität der Kassetteneinheiten.In FIG. 4 For example, the cartridge units for imaging 39 include an imaging system 40 and a color substrate supply unit 41. The imaging units in the cassette units 39 can be moved to a service position after lift-off of their respective Y in printing position on the transport cylinder 2, without tilting the cassette unit is required. This increases the positional stability of the cartridge units.

In Fig. 5 und 6 ist in einer Prinzipdarstellung ein Antriebskonzept im Bereich der Druckmaschine 1, des Auslagesystems 14 und der Stanzvorrichtung 27 dargestellt.In FIGS. 5 and 6 is shown in a schematic representation of a drive concept in the field of printing press 1, the delivery system 14 and the punching device 27.

In Figur 7 ist eine Prinzipdarstellung, wie Figur 1, jedoch nur für einseitigen (Simplexdruck).In FIG. 7 is a schematic representation of how FIG. 1 , but only for one-sided (simplex printing).

In Figur 8 ist eine mit 1 bezeichnete digitale Bogendruckmaschine dargestellt, die ein Transportband 54 aufweist, mit einem Reinigungssystem R und sechs Satellitendruckwerke S für den mehrfarbigen Schöndruck.In FIG. 8 is a designated 1 digital sheet-fed press, which has a conveyor belt 54, with a cleaning system R and six satellite printing units S for the multicolor Perfecting.

Dargestellt ist auch vor- und nachgeschaltete Flexo-Hochdruckkassetteneinheit 32 mit zwei Zwischentrockner 11 und zwei Endtrockner 11 dargestellt.Shown is also upstream and downstream flexo high-pressure cassette unit 32 with two intermediate dryer 11 and two end dryer 11 shown.

Die Prinzipdarstellung der Satellitendruckmaschine 1 gemäss Fig. 8 zeigt deren Anwendung für Bogen als im Bereich des Zuführungszylinders 3 erfassbares Druckmaterial, wobei der Zufuhrzylinder 3 mit Schwinggreifer 8 (alternativ der Einschubanleger 81 mit Transportrollen 82), Transportband 54 und das Abgabesystem 5 mit Greifersysteme 12 und/oder Sauger 59 ausgebildet sind. Dem Zuführzylinder 3 (alternativ der Einschubanleger 81) ist außerdem ein Ausrichtetisch 7 vorgeordnet, sowie in Figur 1 abgebildet und beschrieben ist.The schematic diagram of the satellite printing machine 1 according Fig. 8 shows their application for sheet as detectable in the region of the feed cylinder 3 printing material, wherein the feed cylinder 3 with swing gripper 8 (alternatively, the insertion feeder 81 with transport rollers 82), conveyor belt 54 and the dispensing system 5 with gripper systems 12 and / or suction 59 are formed. The feed cylinder 3 (alternatively, the slide-in feeder 81) is also preceded by a Ausrichtisch 7, and in FIG. 1 is shown and described.

Der Einschub- oder Vorschubanleger 81 unterscheidet sich von der Anlage mit Zufuhrzylinder 3 mit Schwinggreifer 7 dadurch, dass der Substratbogen über Seitenmarke 83 und Vorschubrollen 83 präzise und direkt gegen den Anschlag 64 angelegt wird. Es werden dazu keine Greifer eingesetzt und dementsprechend sind keine Greiferöffnungen in der Übernahmetrommel 75 notwendig.The insertion or feed feeder 81 differs from the system with feed cylinder 3 with oscillating gripper 7 in that the substrate sheet is applied precisely and directly against the stop 64 via side mark 83 and feed rollers 83. There are no grippers used and accordingly no gripper openings in the transfer drum 75 are necessary.

Der Bogen wird durch die Übergabetrommel 75 mit integrierten Vakuumsystem 73 und Vakuumgreifer übernommen und mit dem Vakuumsystem vollflächig fixiert. Das erste Flexo-Druckwerk wird eingesetzt, z. B. zum Beschichten mit Weißlack für Kunststoffe, um dem folgend mit dem Zwischentrockner 11 getrocknet zu werden. Nachfolgend sind beispielsweise 6 Inkjetköpfe aufgenommen, die das Substrat berührungslos bedrucken und mit dem zweiten, z. B. UV-Trockner, getrocknet zu werden. Anschließend wird mit einem zweiten Flexowerk, z. B. ein Schutzlack aufgetragen, um mit dem doppelten Endtrockner getrocknet zu werden. Die Übernahme der Bogen erfolgt erst nach dem der ganze Bogen gedruckt ist, um Verzerrungen des Druckbildes durch die Greiferübernahme zu vermeiden, das ist die sog. 7-Uhr-Position. Auf dem unteren Umlauf ist noch ein Reinigungssystem integriert. Die abgebildeten Stützwalzen dienen als indirekter Gegendruckzylinder für die Flexo-Hochdruckwerke, die bekanntlich in Kontakt sind und mit Druck arbeiten. Diese Stützwalzen sind formatbezogen und weisen einen Spankanal auf. Die Vakuumgreifersysteme werden begrenzt einsetzbar sein, z. B. nur für dünnere Substrate, sowie z. B. Dokumente im Bürobereich bis ca. max. 250 Gramm pro m2. Nicht dargestellt sind die Aniloxwalzen 30 und Kammerrakel 31, sowie sie gezeichnet und beschrieben sind in Figur 3. Denkbar ist es, dass der Vakuumkasten im Bereich des Druckbereichs leicht nach oben gewölbt ist (mit einer Krümmung) für optimales Anlegen der Substratbogen (nicht dargestellt).The sheet is taken over by the transfer drum 75 with integrated vacuum system 73 and vacuum gripper and fixed over the entire surface with the vacuum system. The first flexo printing unit is used, eg. For example, for coating with white paint for plastics, to be dried with the intermediate dryer 11 following. Below, for example, 6 Inkjetköpfe were added, which print the substrate without contact and with the second, z. B. UV dryer, to be dried. Subsequently, with a second Flexowerk, z. As a protective coating applied to be dried with the double end dryer. The acquisition of the sheet takes place only after the whole sheet is printed to avoid distortions of the printed image by the gripper transfer, this is the so-called. 7 o'clock position. On the lower circulation, a cleaning system is integrated. The illustrated backup rolls serve as an indirect impression cylinder for the flexo high pressure units, which are known to be in contact and work with pressure. These backup rolls are format-related and have a chip channel. The vacuum gripper systems will be used limited, z. B. only for thinner substrates, and z. B. Documents in the office area up to max. 250 grams per m 2 . Not shown are the anilox rollers 30 and chamber doctor blade 31, as well as they are drawn and described in FIG. 3 , It is conceivable that the vacuum box in the range of pressure range slightly curved upwards (with a curvature) for optimal application of the substrate sheet (not shown).

In Fig. 9 ist eine Prinzipdarstellung, wie Figur 7, in einer Zwillingsaufstellung mit zwischengeschalteter Bogenwendevorrichtung, mit Wendetransfertrommel 56, 58 und Wendespeichertrommel 57. Die Trommel 56 ist mit unterschiedlicher Geschwindigkeit zu betreiben.In Fig. 9 is a schematic representation of how FIG. 7 in a twin installation with an intermediate sheet turning device, with turning transfer drum 56, 58 and turning storage drum 57. The drum 56 can be operated at different speeds.

Fig. 10 ist eine Prinzipdarstellung, wie Figur 8, jedoch mit konventionellem Transportband und formatbezogener Unterstützwalze pro Druckwerk und nachgeschalteten zweiten Druckwerk für den Widerdruck. Die Väkuumtransportbänder von Figur 8 könnten hier vorteilhaft funktionieren. Fig. 10 is a schematic representation of how FIG. 8 , but with conventional conveyor belt and format-related support roller per printing unit and downstream second printing unit for the reverse printing. The Väkuumtransportbänder of FIG. 8 could work favorably here.

Fig. 11 ist eine Prinzipdarstellung, wie Figur 10, jedoch in Zwillingsanordnung mit bekannten Wendevorrichtungen 56, 57, 58 aus Figur 9. Diese Wendevorrichtung kann auch bei der Position S/W von Figur 8 integriert werden. Denkbar ist es, dass die Anordnung für den Transport horizontal oder in einer Ypsilon-Anordnung positioniert werden kann. Fig. 11 is a schematic representation of how FIG. 10 but in twin configuration with known turning devices 56, 57, 58 FIG. 9 , This turning device can also be used in the position S / W of FIG. 8 to get integrated. It is conceivable that the arrangement for transport can be positioned horizontally or in a Ypsilon arrangement.

Fig. 12 ist eine Prinzipdarstellung, wie Figur. 7, jedoch mit Wendevorrichtung 56, 57, 58 aus Figur 9. Bei dieser Ausführung ist die Produktionsgeschwindigkeit bei Schön- und Widerdruck nur 50 %, jedoch die Investition ist dadurch begrenzt, dass nur ein Satz Druckwerke benötigt wird, die sich digital auf die Ansprüche für Schön- oder Widerdruck einstellen können. Fig. 12 is a schematic representation of how Figure. 7 but with turning device 56, 57, 58 off FIG. 9 , In this design, the production speed of perfecting is only 50%, but the investment is limited by the fact that only one set of printing units is needed, which can adjust digitally to the demands for perfecting.

Fig. 13 ist eine Prinzipdarstellung wie Figur 7, jedoch mit Wendevorrichtung und Begrenzung bei der Schön- und Widerdruck-Anwendung, wie Figur 12. Fig. 13 is a schematic diagram like FIG. 7 , but with turning device and limitation in the perfecting application, such as FIG. 12 ,

In Fig. 14 ist ein Bogenanleger 6 dargestellt mit daneben sich befindender Vorstapeleinrichtung 61.In Fig. 14 a sheet feeder 6 is shown with pre-stacking device 61 next to it.

In Fig. 15 wird eine imaginäre Druckmaschine in Satellitenbauweise dargestellt auf Basis der Figur 1 der US 5,036,763 . Die imaginäre Druckmaschine ist erweitert bis zu 2 x 7 Druckwerke für Hi-Fi Druck. Aus der Dimension ist zu erkennen, dass diese Maschine bereits im Halbformat (B2) für die Bedienung unrealistischen Umfang im Vergleich zur Figur 2 bekäme. Außerdem entspricht die sogenannte S-Umschlingung der Stoptrommelanlagenkonfiguration 92 nicht den Voraussetzungen eines schlanken Papierlaufs.In Fig. 15 is an imaginary printing machine in satellite design based on the FIG. 1 of the US 5,036,763 , The imaginary press is expanded up to 2 x 7 printing units for hi-fi printing. From the dimension it can be seen that this machine is already in half format (B2) for handling unrealistic scope compared to FIG. 2 would get. Moreover, the so-called S-wrapping of the stop-drum layout configuration 92 does not meet the requirements of a slender paper run.

In Fig. 16 wird eine ebenso imaginäre Druckmaschine in modularer Reihenbauweise dargestellt. In einer imaginären Konfiguration wie Figur 2 mit 2 x 7 Farben und Lackwerke und Inline-Weiterverarbeitung entstünden total unrealistische Dimensionen und damit nicht wirtschaftliche Investitionen einer Druckmaschine.In Fig. 16 an equally imaginary printing machine in modular row construction is shown. In an imaginary configuration like FIG. 2 With 2 x 7 colors and coating units and inline finishing, the result would be totally unrealistic dimensions and thus not economic investments in a printing press.

In Fig. 17, 18 und 19 ist ein Ausschnitt mit Senk-Greifersysteme abgebildet. Dargestellt sind Greiferwelle mit Senkgreifer 67, Greiferrücken 68, Greiferauflage 69, Bedruckstoff 66, Zylinderkörper 70 und Exzentersteuerung 71. Die Greifer senken nur geringfügig ab, nur während des Druckvorgangs.In FIGS. 17, 18 and 19 is a section with lowering gripper systems shown. Shown are the gripper shaft with lowering gripper 67, gripper back 68, gripper support 69, substrate 66, cylinder body 70 and eccentric control 71. The grippers decrease only slightly, only during the printing process.

In Fig. 17 ist das Greifersystem in Arbeitsposition zum Substrattransport 66 dargestellt, wobei der Greiferrücken über der Zylinderfläche steht und damit einen minimalen Abstand der Digitalen Druckwerke verhindert.In Fig. 17 the gripper system is shown in the working position for substrate transport 66, wherein the gripper back is above the cylindrical surface and thus prevents a minimum distance of the digital printing units.

In Fig. 18 ist das Senkgreifersystem für bessere Anschaulichkeit in einer übertriebenen versenkten Position zum passieren der Digitalen Druckwerke dargestellt. Die Greiferrücken 67 sind jetzt unterhalb der Abwicklungsfläche, wodurch die Digitalen Druckwerke auf minimalen Abstand zum Bedruckstoff eingestellt werden können. Die Absenkung ist demonstrativ überzogen, um die theoretische Deformation des Bedruckstoffs zu zeigen.In Fig. 18 For convenience, the lowering gripper system is shown in an exaggerated recessed position for passing the digital printing units. The gripper back 67 are now below the unwinding surface, whereby the digital printing units can be set to a minimum distance to the substrate. The reduction is demonstratively coated to show the theoretical deformation of the substrate.

In Fig. 19 ist der Transportzylinder mit einem selbstklebenden Gummituch überzogen. Die Eigenschaften des elastischen Materials erlauben eine maximale Absenkung der Greifer bei minimaler Deformation des Bedruckstoffs.In Fig. 19 the transport cylinder is coated with a self-adhesive rubber blanket. The properties of the elastic material allow a maximum lowering of the gripper with minimal deformation of the substrate.

Fig. 20 zeigt das Vakuumband 54 mit Vakuumgreifer und absenkbaren Anschlag 64. Nachdem das Substrat 66 zum Anschlag ausgerichtet ist, wird der Substratbogen 66 von Saugluft 65 gegriffen/erfasst und mit Vakuum feste zum Transportband angesaugt. In dem Moment das der ganze Bogen vom Vakuum fixiert ist, kann der Anschlag mit Hilfe von z. B. Kurvenrollen 38 und z. B. Exzentersteuerung 71 oder z. B. Kurve 80 abgesenkt werden, damit die Bebilderungssysteme, bzw. die Digitaldruckwerke, z. B. die Inkjetköpfe so nahe wie möglich und nötig zur Oberfläche des Substrates angestellt werden. Auch um eine ideale Luftströmung zu gewährleisten. Dieses Vakuumsystem wird sich positiv auf die Luftströmung, die beim Inkjetverfahren kritisch ist, auswirken. Anstatt von einem perforierten Vakuumtransportband, könnten auch z. B. ein Satz von perforierten Zahnriemen 79 eingesetzt werden. Denkbar sind auch Anschläge mit Schrägeransatz 78, was an und für sich einen sicheren Anschlag darstellt. Der Nachteil dabei ist, dass der Bogen sich etwas deformiert, womit jedoch bei der nächsten Übergabe Rechnung getragen werden kann. Fig. 20 shows the vacuum belt 54 with vacuum gripper and lowerable stop 64. After the substrate 66 is aligned with the stop, the substrate sheet 66 is gripped / sucked by suction air 65 and vacuum sucked to the conveyor belt. In the moment that the whole arc is fixed by the vacuum, the stop with the help of z. B. cam rollers 38 and z. B. eccentric 71 or z. B. curve 80 are lowered so that the imaging systems, or the digital printing, z. As the inkjet heads are as close as possible and necessary employed to the surface of the substrate. Also to ensure an ideal air flow. This vacuum system will have a positive effect on the air flow, which is critical in the inkjet process. Instead of a perforated vacuum conveyor belt, z. B. a set of perforated toothed belt 79 are used. Also conceivable are attacks with Schrägeransatz 78, which in itself represents a safe stop. The disadvantage of this is that the bow deforms a bit, but this can be taken into account at the next handover.

Fig. 21 ist eine Prinzipdarstellung, wie Figur 8, jedoch mit einer Transportvorrichtung mit mehreren Sektionen, zusammengestellt aus einer Kombination von mehreren Bändern und/oder Riemensysteme und Gegendruckzylinder.

1.
Satellitendruckmaschine
2.
Transportzylinder
3.
Zufuhrzylinder
4.
Blasleiste
5.
Abgabezylinder
6.
Bogenanleger
7.
Ausrichttisch
8.
Schwinggreifer
9.
Kassetteneinheit für Pre-Print
10.
Kassettenführung
11.
Trockner
12.
Greifersystem
13.
Kassetteneinheit, z. B. für Finishing
14.
Hogenauslage
15.
Bedruckstoffkassette
16.
Mantelfläche zur Erwärmung
17.
Kassettengestell
18.
Antrieb Druckmaschine
19.
Servoantrieb Finishing Station
20.
Auslagekette
21.
Kettenrad Auslage
22.
Berührungslose Zahnradverbindung
23.
Ohne Zahnradverbindung
24.
Mit spielfreier Zahnradverbindung
25.
Matrizzylinder
26.
Patrizzylinder
27.
Stanz- und Rillvorrichtung
28.
Präge- und Folienvorrichtung
29.
Seitenständerkassette
30.
Aniloxwalze
31.
Kammerrakel
32.
Lackauftragswalze
33.
Seitenständer Maschinengestell
34.
Offenes Linearkugellager
35.
Tragschiene mit Traverse
36.
Tragstrebe
37.
Tragschiene
38.
Kurvenrolle
39.
Kassetteneinheit zur Bebilderung
40.
Bebilderungssystem
41.
Farbsubstratzufuhreinheit
42.
Kassette in Arbeitsposition
43.
Kassette in Servicestellung Bedienseite
44.
Kassette in Servicestellung Antriebsseite
45.
Absaughaube
46.
Inline Weiterverarbeitungsstation
47.
Auslage Zuschnitte
48.
Auslage angestanzte und/oder veredelte Bogen
49.
Entsorgung nach oben
50.
Entsorgung nach Zylinderinnere
51.
Entsorgung nach unten
52.
Spannkanal
53.
Non-stop Stapelauslage
54.
Transportband
55.
Stützungswalzen
56.
Wendetransferzylinder mit variablere Geschwindigkeit
57.
Wendespeichertrommel
58.
Wendetransfertrommel
59.
Saugkopf
60.
Seitliche Verschiebung
61.
Vorstapeleinrichtung
62.
Einstellhöhe
63.
Stoptrommelanlage
64.
Vakuumgreifer mit Senkanlage
65.
Saugluftöffnung
66.
Bedruckstoff
67.
Greifer auf Welle
68.
Greiferrücken
69.
Greiferauflage
70.
Zylinderkörper
71.
Exzentersteuerung
72.
elastisches Material
73.
Vakuumsystem, z. B. Vakuumtrommel oder Vakuumleiste oder Vakuumkammer
74.
7-Uhr-Position
75.
Übergabetrommel
76.
Aussparung im Transportband
77.
Bolzen
78.
Schräganschlag
79.
Zahnriemen
80.
Kurve
81.
Vorschub-/Einschub-Anleger
82.
Vorschubrollen
83.
Seitenmarke
C
Pfeil Papiertransportrichtung,
S
Satellitendruckwerke für Schöndruck
D
Drehrichtung für Kassette
G
Pfeil Verfahrung Finishing Station
W
Satellitendruckwerke für Widerdruck
K
Pfeil seitliche Verstellung in Kassette
R
Reinigungssysteme in Kassette
Y
Pfeil radial Druckbeistellung
V
Vorfinishing / Lackauftrag nicht formatgebunden
Fig. 21 is a schematic representation of how FIG. 8 but with a multi-section transport device composed of a combination of multiple belts and / or belt systems and impression cylinders.
1.
Satellite printing machine
Second
transport cylinder
Third
supply cylinder
4th
blowing strip
5th
discharge cylinder
6th
sheet feeder
7th
alignment table
8th.
swing gripper
9th
Cassette unit for pre-print
10th
cassette guide
11th
dryer
12th
gripper system
13th
Cassette unit, z. For finishing
14th
Hogen display
15th
Bedruckstoffkassette
16th
Lateral surface for heating
17th
cassette tray
18th
Drive printing machine
19th
Servo Drive Finishing Station
20th
delivery chain
21st
Sprocket delivery
22nd
Non-contact gear connection
23rd
Without gear connection
24th
With backlash-free gear connection
25th
Matrizzylinder
26th
Patrizzylinder
27th
Punching and scoring device
28th
Embossing and foil device
29th
Kickstand cassette
30th
anilox
31st
chambered doctor blade
32nd
Lacquer application roller
33rd
Kickstand machine frame
34th
Open linear ball bearing
35th
Support rail with crossbar
36th
supporting strut
37th
rail
38th
follower
39th
Cassette unit for illustration
40th
imaging system
41st
Color substrate supply unit
42nd
Cassette in working position
43rd
Cassette in service position Operating side
44th
Cartridge in service position drive side
45th
exhaust hood
46th
Inline finishing station
47th
Display blanks
48th
Display punched and / or finished bow
49th
Disposal to the top
50th
Disposal to the inside of the cylinder
51st
Disposal down
52nd
chip channel
53rd
Non-stop stack delivery
54th
conveyor belt
55th
support rollers
56th
Turning transfer cylinder with more variable speed
57th
Revolving storage drum
58th
Turning the transfer drum
59th
suction head
60th
Lateral displacement
61st
Prestacker
62nd
setting height
63rd
Stop drum system
64th
Vacuum gripper with lowering system
65th
suction air
66th
substrate
67th
Gripper on shaft
68th
looper back
69th
Gripper pad
70th
cylinder body
71st
Eccentric
72nd
elastic material
73rd
Vacuum system, z. B. vacuum drum or vacuum bar or vacuum chamber
74th
7 o'clock position
75th
Transfer drum
76th
Recess in the conveyor belt
77th
bolt
78th
Angular stop
79th
toothed belt
80th
Curve
81st
Feed / slide-investors
82nd
feed rollers
83rd
page brand
C
Arrow paper direction,
S
Satellite printing works for Perfecting
D
Direction of rotation for cassette
G
Arrow handling finishing station
W
Satellite printing works for perfecting
K
Arrow lateral adjustment in cassette
R
Cleaning systems in cassette
Y
Arrow radial Druckbeistellung
V
Prefinishing / varnish application not formatted

Claims (16)

  1. A digital printing machine for direct contactless sheet printing, having
    - an elastically covered feed device with a material (66) to be printed is transported, wherein the feed device
    - having at least one gripper (68) on its periphery that holds the sheet,
    and/or
    - having a stop (64) for positioning the front edge of the sheet,
    - and a digital printing unit being format variable in peripheral direction of the feed device,
    wherein
    the distance between the highest point of the gripper (68) and/or of the stop (64) and the surface to be printed of the material (66) to be printed is less during the printing operation than the distance between the surface to be printed of the material (66) to be printed and the digital printing unit, wherein the highest point of the gripper (68) and/or of the stop (64) protrudes beyond the surface of the non-covered feed device.
  2. The digital printing machine of claim 1, characterized in that the feed device is a feed roller (2) or a conveyor belt (54).
  3. The digital printing machine of claim 1, characterized in that the feed device has a plurality of feed rollers (2) and/or conveyor belts (54) and/or support rollers (55).
  4. The digital printing machine of claim 1, characterized in that the feed device has at least one mechanical gripper (68), which can be lowered via a defined portion of the cylinder circumference.
  5. The digital printing machine of claim 4, characterized in that the feed device is equipped with elements for lowering the grippers (68) and/or the stop (64).
  6. The digital printing machine of claim 1, characterized in that the feed device has at least one stop (64), which can be lowered temporarily.
  7. The digital printing machine of claim 1, characterized in that a second the feed device having at least a digital printing unit for the reverse printing is arranged after the feed device.
  8. The digital printing machine of claim 1, characterized in that a variable-format sheet turning device with at least one drum (56), that can be operated at variable speed, is disposed downstream of the feed device.
  9. The digital printing machine of claim 7, characterized in that at least two digital printing units for both front and reverse printing are structurally identical.
  10. The digital printing machine of claim 1, characterized in that a plurality of printing systems of different printing processes in a variable-format and/or format-specific embodiment with an integrated support roller (55), and/or cleaning and/or conditioning and/or coating and/or fixation and/or drying and/or remoistening system, can be used.
  11. The digital printing machine of claim 7, characterized in that the feed devices for front-side printing (S) and reverse printing (W) have the same or different dimensions.
  12. The digital printing machine of claim 2, characterized in that the conveyor belt is supported by format-specific rollers having recesses on their periphery that receive grippers.
  13. The digital printing machine of claim 1, characterized in that the printing units and conditioning cassettes each form cassette-like units which can be displaced from their working position into a servicing position toward the operator control side and/or the drive side.
  14. The digital printing machine of claim 1, characterized in that the elastic material (72) is a self-adhesive rubber blanket.
  15. The digital printing machine of claim 1, characterized in that the feed-, print-, intermediate-, and output cylinders can be adapted to variable thicknesses of the material to be printed by radial adjustment (Y).
  16. The digital printing machine of claim 1, characterized in that the distance between the digital printing unit (S, W) and the material (66) to be printed is minimal.
EP03766350A 2002-07-30 2003-07-29 Satellite printing machine Expired - Lifetime EP1440351B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10235872 2002-07-30
DE10235872A DE10235872A1 (en) 2002-07-30 2002-07-30 Satellite printing machine for printing on arched substrates
PCT/EP2003/008382 WO2004013704A1 (en) 2002-07-30 2003-07-29 Satellite printing machine

Publications (2)

Publication Number Publication Date
EP1440351A1 EP1440351A1 (en) 2004-07-28
EP1440351B1 true EP1440351B1 (en) 2009-04-01

Family

ID=30469467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03766350A Expired - Lifetime EP1440351B1 (en) 2002-07-30 2003-07-29 Satellite printing machine

Country Status (6)

Country Link
US (1) US20050150408A1 (en)
EP (1) EP1440351B1 (en)
AT (1) ATE427520T1 (en)
AU (1) AU2003253353A1 (en)
DE (2) DE10235872A1 (en)
WO (1) WO2004013704A1 (en)

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Also Published As

Publication number Publication date
DE10235872A1 (en) 2004-02-19
US20050150408A1 (en) 2005-07-14
AU2003253353A1 (en) 2004-02-23
WO2004013704A8 (en) 2004-07-22
EP1440351A1 (en) 2004-07-28
ATE427520T1 (en) 2009-04-15
WO2004013704A1 (en) 2004-02-12
DE50311369D1 (en) 2009-05-14

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