EP1762384A2 - Procédé et dispositif pour marquer dans une machine de traitement de matériau en feuilles - Google Patents

Procédé et dispositif pour marquer dans une machine de traitement de matériau en feuilles Download PDF

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Publication number
EP1762384A2
EP1762384A2 EP06017952A EP06017952A EP1762384A2 EP 1762384 A2 EP1762384 A2 EP 1762384A2 EP 06017952 A EP06017952 A EP 06017952A EP 06017952 A EP06017952 A EP 06017952A EP 1762384 A2 EP1762384 A2 EP 1762384A2
Authority
EP
European Patent Office
Prior art keywords
sheet material
printing unit
sheet
inkjet
laser printing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06017952A
Other languages
German (de)
English (en)
Other versions
EP1762384A3 (fr
Inventor
Andreas Ihme
Alexander Klitza
Frank Seidel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
Manroland AG
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Manroland AG, MAN Roland Druckmaschinen AG filed Critical Manroland AG
Publication of EP1762384A2 publication Critical patent/EP1762384A2/fr
Publication of EP1762384A3 publication Critical patent/EP1762384A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/44—Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • B41J11/00214—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using UV radiation
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • B41J11/00216—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using infrared [IR] radiation or microwaves
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0085—Using suction for maintaining printing material flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B65H2301/5111—Printing; Marking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/365—Means for producing, distributing or controlling suction selectively blowing or sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a method and a device for marking sheet material according to the preamble of claims 1 and 7.
  • the invention can be used in particular in printing machines or painting machines.
  • sheets or the individual benefits of a sheet must be individually marked.
  • Such an identification can be carried out, for example, as a consecutive numbering, as a barcode or other type of individualizing inscription, ie each individual print benefit or each sheet gets its own impression.
  • this should be able to be carried out in an ideal manner in one pass with the actual printing of the sheet material in the processing machine.
  • the labeling of the individual benefits can be done with a so-called non-impact print or NIP printing unit, which works without a stop or without fixed or touching printing form.
  • the NIP printing unit is controlled digitally via a correspondingly configured data supply and can thus generate a different print image each time a printing operation is performed.
  • This feature allows custom printing on any sheet material.
  • the individualization unit is in the form of an inkjet or laser printing unit, which is integrated into the existing printing press.
  • ink jet elements are z: B. Continuous Inkjet, Drop on Demand Inkjet, Valve Inkjet, etc.
  • Today's printed products are identified either individually in roll printing inline (eg on narrow web machines) or offline in further processing.
  • the offline variant means higher time and cost expenditures for the production of the printed product.
  • various inkjet technologies can be used.
  • the technologies currently used can be divided into two groups: Continuous and Drop on Demand Inkjet.
  • NIP printing units need to set a good print image a fixed position of the substrate for setting a precise distance in the image formation.
  • a method and apparatus for imprinting individualizing markings is known. It is proposed to arrange an inkjet and / or laser printing unit within a printing unit, in particular an offset printing unit. In this case, the inkjet and / or laser printing unit to a sheet leading printing cylinder in the area after the passage of a sheet through a printing gap formed by the printing cylinder and a blanket cylinder for printing the sheet to be arranged. In a further embodiment, a bow leading impression cylinder downstream of a boom for sheet storage.
  • a sheet guide drum with at least one row of grippers is drivably mounted in a housing between a sheet-fed press and a delivery system, which has a series of suction heads for each row of grippers, wherein a laser or inkjet printer is arranged radially to the sheet guiding drum.
  • the arrangement has an increased construction cost and a complex design of sheet guiding elements, which are also still to combine with some quite complex control devices.
  • the invention has the object to provide a method and an apparatus of the type mentioned above, which allow a simple and high quality a preferably variable marking of sheet material or individual benefits within the sheet material processing machine.
  • a first advantage of the embodiment according to the invention is that a coating of the sheet material with a liquid coating agent, in particular a paint or a lacquer, can be realized.
  • a liquid coating agent in particular a paint or a lacquer
  • the individualized impression of the coating agent on the sheet material or on individual use is achieved with an integrated into the boom of a processing machine inkjet and / or laser printing unit as a marking device.
  • the coating agent after the actual printing and / or painting process (in an upstream printing and / or coating unit), but before the storage of the sheet material, for example, on a delivery pile be applied individually to the substrate or its use.
  • the sheet material is transported above the outlet openings of the inkjet and / or laser printing unit in the conveying direction in a sheet conveying plane.
  • the inkjet and / or laser printing unit is in the sheet entrance, i. H. approximately vertically, after the last printing or coating unit or a processing station or alternatively arranged horizontally in the conveying direction before the sheet brake device or sheet storage in the delivery of the processing machine.
  • a second advantage is that, depending on the liquid Coating agent in the conveying direction of the sheet material of the inkjet and / or laser printing unit is arranged downstream of at least one drying device.
  • a drying device is designed as a UV dryer or hot air or IR dryer. The sheet material is transported above the dryer device in the conveying direction.
  • the boom has sheet guiding devices for guiding the sheet material.
  • the sheet material is fixed in a conventional manner to an edge on a sheet holding means, such as a gripper system, and transported by a rotating conveyor system, such as a traction mechanism in the boom in the conveying direction for the purpose of storage on a sheet stack.
  • the sheet material is not subject to disadvantageous curvature, as is the case with bow guide cylinders.
  • the lifting of the sheet trailing edge of the sheet guiding cylinder is avoidable and the risk of smearing of the sheet material to the sheet guiding cylinder associated sheet guiding means does not exist.
  • the sheet guiding device By means of the sheet guiding device and in combination with the sheet-holding means is preferably an approximately equal distance between the sheet conveying plane and the underside of the sheet material and the outlet openings of the inkjet and / or laser printing unit realized.
  • the sheet guiding device can be designed for the floating guidance of the sheet material or for guiding by means of circulating guide elements, for example suction belts.
  • the sheet guiding device may comprise sheet guiding rods which are adjustable at least over the format width of the sheet material.
  • the sheet guiding device can be formed from a flow channel coupled to a pneumatic system with openings in the cover sheet and on this sheet guide rods displaceably mounted.
  • the sheet material before the impression by means of the inkjet and / or laser printing unit via a coupled to a vacuum source be performed over the format width extending suction bar.
  • the squeegee can be integrated in a Bogelnglätt issued. Through the squeegee, the sheet material in the direction of the sheet guiding device or the inkjet and / or laser printing unit sucked and tightened, whereby during the subsequent labeling process (impression) an approximately uniform distance between the underside of the sheet material and the outlet openings of the inkjet or laser printing unit is ensured.
  • the Bogenglätt can be counteracted in addition to the roles of the sheet material by the sheet material unrolls, that is subjected to a counter-curvature, and is stretched against the conveying direction.
  • the trailing edge or its region can be fixed to additional sheet holding means revolving with the conveying system.
  • an inkjet and / or laser printing unit for individualizing inline marking of the sheet material used in the delivery of sheet material processing machines, or can be retrofitted to the boom of such a processing machine with the inventive solution.
  • the marking of the sheet material by means of the inkjet and / or laser printing unit is carried out prior to its delivery to the sheet stack, so after the actual printing or painting process in the processing machine.
  • bow guide rods are preferably used in the following, which are positioned individually, preferably on pressure / paint-free zones.
  • the individualization should not be limited to individual areas to be marked, but rather, via a corresponding manual or automatic activation of the respectively required marking heads, individual impressions can be made about the entire format width of the sheet material or of use.
  • the print resolution or achievable print speed of the individual used identification heads of the inkjet or laser printing unit not enough from can also be an arrangement of multiple heads in the conveying direction behind and transverse to the conveying direction side by side.
  • the print image is distributed to a plurality of printheads, whereby the printing speed, the print quality or the print width of the individual identification heads can be multiplied in detail or together.
  • a UV drier may be attached directly to this position of the sheet guide.
  • an IR drying device and / or a hot-air dryer may also be used at the position of the sheet guide. If an UV or IR drying device is arranged, a glass pane, preferably a quartz glass pane, can be arranged integrated in front of the respective drying device, preferably in the sheet guiding device. The drying devices are preferably arranged downstream of the ink jet and / or laser printing unit in the conveying direction of the sheet material.
  • the sheet guiding device (with arc path and / or sheet guiding rods) can be designed such that it is also adjustable in its distance from the plane in which the sheet material is conveyed.
  • the inkjet and / or laser printing unit can be conveyed at least at its outlet openings to the plane in which the sheet material or be adjustable in their distance from the underside of the sheet material. This ensures the best possible impression
  • a recording device for collecting ink spatters or aerosols can be arranged above the printing substrate conveying plane. This is preferably carried out so that behind a close-meshed perforated plate, a sponge, fleece, paper or other absorbent material may be provided to receive the splashes or aerosols of the inkjet and / or laser printing unit. If necessary, the sponge, etc. or the absorbent material can be changed.
  • the receiving device may also include a perforated plate on the upper side, but behind it a cavity, at the bottom of which a collecting trough is located, through whose outlet splashes etc. are guided into a residual container.
  • the receiving device accommodating splashes or aerosols can be designed as a suction device.
  • the proposed boom-integrated solution allows the use of a variety of NIP printing systems, and can be customized to meet the needs of the user.
  • paints or varnishes of the most diverse types for example water-based, oil-based, solvent-based, etc.
  • a liquid or more liquid coating agent can be processed, which absorbs discrete wavelength ranges (individual wavelengths or wavelength ranges).
  • markings can be printed on the sheet material or individual or all benefits that represent or contain security features. In this case, markings can be printed on the sheet material or the benefits that are not visible to the naked eye.
  • the arrangement of the inkjet and / or laser printing unit as a marking device in a boom is particularly suitable for marking unprinted or sufficiently dried paint or paint-bearing undersides of the sheet material.
  • the ink jet and / or laser printing unit may be operated separately.
  • the inkjet and / or laser printing unit is circuitry coupled to the machine control of the processing machine and activated, for example via a control room.
  • the inkjet and / or laser printing unit can be circuit-coupled with a sheet-fed inspection system arranged upstream in the processing machine, preferably in the conveying direction of the sheet material of the ink-jet and / or laser printing unit.
  • a sheet-fed press has at least one printing unit 1 and a coating unit 2.
  • Each printing unit 1 has in a known manner a plate cylinder 6, a blanket cylinder 8 and a sheet guiding cylinder 9, which is formed here as a printing cylinder 9.
  • the printing unit 1 further comprises an inking unit 7 and, if necessary, a dampening unit.
  • Each coating unit 2 has, in a known manner, a forme cylinder 10 and a metering system 11, 12, formed here by a screened application roller 11 and a chamber doctor blade 12.
  • the form cylinder 10 is a sheet guiding cylinder 9, here formed as a pressure cylinder 9 assigned.
  • the transport of the sheet material in the conveying direction 5 is realized by means of further sheet guiding cylinder 9.
  • an ink jet and / or laser printing unit 14 is provided as a marking device in the boom 3 of the sheet-fed printing machine.
  • This inkjet and / or laser printing unit 14 is arranged for this purpose in the boom 3 below a conveying plane 16 of the sheet material.
  • a arranged below the conveying plane 16 sheet guiding device 13 is provided.
  • the inkjet and / or laser printing unit 14 may be integrated in this sheet guiding device 13.
  • a vacuum source suction bar 18 may be disposed below the conveying plane 16 of the sheet material.
  • the squeegee 18 is integrated into the sheet guiding device 13 itself or in a further upstream in the conveying direction 5 sheet guiding device of the boom 3.
  • this squeegee 18 may be integrated in the conveying direction 5 in front of the inkjet and / or laser printing unit 14 in a Bogenglätt issued.
  • the sheet material is passed over the squeegee 18 with or without sheet smoother prior to commencement of marking (by means of the ink jet and / or laser printing unit 14), thereby providing a preferably even spacing between the underside of the sheet material and the ink jet and / or laser printing unit during the lettering process 14 is guaranteed as a marking unit.
  • sheet guiding rods 26 can be used as a sheet guiding device 13, which can be positioned individually. Thus, it can be achieved that over a defined distance no contact or damage to the freshly printed label takes place and a reasonable drying period is available.
  • the drying device 15 Taking into account the liquid coating agent (ink / ink / varnish) used in the inkjet and / or laser printing unit 14, in the conveying direction 5 of the sheet material it is arranged downstream of a drying device 15 arranged below the conveying plane 16 of the sheet material.
  • the drying device 15 may be integrated into a sheet guiding device 13 arranged below the conveying plane 16 of the sheet material.
  • UV drying device 15 can be attached directly to the position of the ink-jet and / or laser printing unit 14 adjacent or in the conveying direction 5 be.
  • UV drying devices 15 should be used with measures for reducing heat. These are, for example, UV lamps with dichroic reflectors or UV modules, in which only the mirrored part with discrete wavelength or discrete wavelength ranges gets onto the sheet material and wavelengths in the infrared pass through the mirror and are absorbed.
  • a glass pane in particular a quartz glass pane, can be arranged in front of the UV drying device 15, but also the IR drying device 15. The glass pane is preferably arranged integrated in the sheet guiding device 13.
  • the position of the ink-jet and / or laser printing unit 14 adjacent to or in the conveying direction 5 may be followed by an IR drying unit.
  • a receiving device 17 for detecting the splashes and / or aerosols resulting from the inkjet and / or laser printing unit 14 may be arranged above the conveying plane 16 for the sheet material.
  • the receiving device 17 is thus arranged on the opposite side of the inkjet and / or laser printing unit 14, ie above the sheet material in the boom 3, taking into account the circulating with the conveyor system 4 sheet holding means.
  • the receiving device 17 with a close-meshed perforated plate and a sponge behind it or another absorbent Material designed to absorb splashes or aerosols.
  • the sponge or absorbent material is releasably disposed in the receiving device 17 for removal.
  • the receiving device 17 may also include a perforated plate at the top, but behind a cavity at the bottom of which is a drip tray, through the flow of spatter or aerosols can be performed in a residual container.
  • the arrangement of the ink-jet and / or laser printing unit 14 can take place in the sheet exit 19 or in the horizontal area 20 of the delivery arm 3 in each case after the last printing or coating unit 1, 2.
  • the sheet guiding device 13 is mounted in a rotary joint 21 in the side frame and releasably connectable by means of snap closure 28 with the side frame.
  • the ink-jet and / or laser printing unit 14 can be removed from its position in the event that no impression is to take place and be stored in a correspondingly formed holder on the processing machine or outside thereof.
  • the ink jet and / or laser printing unit 14 can also be replaced interchangeably with the sheet guiding device 13 as a module and exchanged for another modular sheet guiding device.
  • the inkjet and / or laser printing unit 14 can be moved within the sheet guiding device 13 in any position transverse to the conveying direction 5 of the sheet material.
  • the sheet material associated with the guide surface (sheet guide rod 26 and / or cover plate 24) of the sheet guiding device 13 may be tempered, in particular of a fluid, such as water cooled, flows through it.
  • Bogenleitstäben 26 as a sheet guiding device 13, these are like the printheads of the inkjet and / or laser printing unit 14 transversely to the conveying direction 5 of the sheet material in not by means of ink jet and / or laser printing unit 14 to be marked regions of the sheet material displaceable.
  • the sheet guiding rods 26 are preferably arranged between the printing heads of the inkjet and / or laser printing unit 14.
  • the Bogenleitstäbe 26 are lockable and water cooled or air cooled executable. With air cooling, the blown air exits from below against the sheet material through holes in the Bogenleitstäben 26 and also serves to support the bowing or to maintain an air cushion.
  • the air cooling can alternatively or in combination with the Bogenleitstäben 26 by reversible, ie operating in Blas Kunststoff- or Saugluft horr fan 22 of preferably designed as a flow channel 23 sheet guiding device 13 can be realized.
  • This layer can be detachably attached to the sheet guiding device 13, especially the sheet guide rods 26 (eg as a cap), or adhesively bonded to the sheet guiding device 13. As a result, the heating of the sheet guiding device 13 is reduced.
  • the sheet guiding device 13 is designed so that in the region of the outlet nozzles of the print heads (inkjet and / or laser printing unit 14), the distance to the underside of the sheet material is variably adjustable. This ensures the best possible print image.
  • the sheet guiding device 13 is formed by a box-shaped flow channel 23, which is mounted on the frame side at a pivot joint 21 and extends at least over the full format width.
  • At least one reversible fan 22, alternatively a pneumatic system, is arranged on the rear side of the flow channel 23.
  • the flow channel 23 On the side adjacent to the sheet material, the flow channel 23 has a cover plate 24 which has openings (nozzles) 25 for the flow of air through it.
  • the Bogenleitstäbe 26 arranged above the cover plate 24 arranged.
  • the Bogenleitstäbe 26 are arranged in alignment with the upstream and downstream Bogenleit Nur in the boom 3.
  • the cover plate 24 also has a recess 27 in which at least one print head of the inkjet and / or laser printing unit 14 is arranged to be movable over the format width.
  • the working method for marking sheet material is accomplished by conveying the sheet material in a delivery plane 16 above the ink jet and / or lens printing unit 14 past it by means of the conveyor system 14 and sheet holding means and at its underside using a liquid coating agent (ink, ink , Paint) is provided with an individual marking.
  • a liquid coating agent ink, Paint
  • the sheet material is subsequently transported past the ink jet and / or laser printing unit 14 in the conveying plane 16 with its underside on a drying device 15.
  • the splashes and / or aerosols possibly resulting from the coating agent of the ink jet and / or laser printing unit 14 can be collected above the conveying plane 16 of the sheet material in a receiving device 17 in the delivery device 3.
  • the sheet material in the conveying plane 16 floating (on an air cushion) can be promoted.
  • the sheet material can be conveyed in a non-positive manner, in part, ie with the part not fixed by the sheet-holding means, below the conveying plane.
  • the individualized marking of the sheet material takes place in the delivery arm 3 before delivery to a stack, ie after the actual printing or coating process in the processing machine.
  • This marking of the sheet material by means of the inkjet and / or laser printing unit 14 should not be limited to individual areas, but allows a corresponding manual or automatic control of each required print head units, individual impressions on the entire format width of the sheet material or benefits.
  • the ink jet and / or laser printing unit 14 can therefore be implemented either as a unit across the entire format width (Print Bar) or in several units for individual identification areas (Print Swaths). If a plurality of print head units are used in the inkjet and / or laser printing unit 14, it is possible to displace them independently of one another on a correspondingly distinct guide cross-member, transversely to the conveying direction 5 of the sheet material, and to lock them in their desired position.
  • the arrangement of the individual printhead units of the inkjet and / or laser printing unit 14 may be in the o.g. Different versions are made. If the printing resolution or the achievable printing speed of the individual printhead units used is insufficient, an arrangement of a plurality of printhead units in the conveying direction 5 can also take place one after the other (ganging) and also transversely (stiching) to the conveying direction 5. Preferably, the print image of the individual tag is distributed among a plurality of print head units, whereby an increase in print speed, print quality and print width of the individual print head units can be multiplied. Print speed and print resolution depend on each other.
  • the print heads are rotated at a given print frequency to increase the resolution in the conveying direction 5. This will narrow the printed image and increase the resolution.
  • the printheads may remain in position transverse to the direction of conveyance 5. Then several printheads are interconnected so that a higher print speed can be achieved for a given resolution.
  • the print head units of the inkjet and / or laser printing unit 14, which can be displaced transversely to the conveying direction 5, can be equipped with different inks, paints or varnishes and thus individual, for example visible or invisible to the naked eye, markings on the sheet material or individual or several benefits are printed.
  • the invisible markings of the sheet material result from the discrete wavelengths in the ink jet and / or laser printing unit 14 Wavy areas absorbent liquid coating agent is processed.
  • the latter working principle is not limited to the processing of a liquid coating agent, but rather also a plurality of liquid coating compositions each having a discrete wavelength or respectively specific wavelength ranges can be processed.
  • the processing machine comprises an arc inspection system, which is circuit-coupled with the machine control.
  • the sheet inspection system is preferably associated with a sheet guiding cylinder 9 in the conveying direction of the sheet material in front of the ink jet and / or laser printing unit 14.
  • the respective impression cylinder of the last printing / coating unit 1, 2 offers.
  • the ink jet and / or laser printing unit 14 or individual printhead units can be driven by signal and the sheet material or individual benefits - taking into account the quality detected by the sheet inspection system - by the inkjet and / or laser printing unit 14th be provided with the desired markings.
  • marks for missing sheets or single Benedictnutzen can be introduced to the sheet material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ink Jet (AREA)
  • Treatment Of Fiber Materials (AREA)
EP06017952A 2005-09-09 2006-08-29 Procédé et dispositif pour marquer dans une machine de traitement de matériau en feuilles Withdrawn EP1762384A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005043241A DE102005043241A1 (de) 2005-09-09 2005-09-09 Verfahren und Vorrichtung zur Kennzeichnung von Bogenmaterial in einer Verarbeitungsmaschine

Publications (2)

Publication Number Publication Date
EP1762384A2 true EP1762384A2 (fr) 2007-03-14
EP1762384A3 EP1762384A3 (fr) 2011-03-23

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Application Number Title Priority Date Filing Date
EP06017952A Withdrawn EP1762384A3 (fr) 2005-09-09 2006-08-29 Procédé et dispositif pour marquer dans une machine de traitement de matériau en feuilles

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EP (1) EP1762384A3 (fr)
DE (1) DE102005043241A1 (fr)

Cited By (1)

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DE102015208042B4 (de) * 2015-04-30 2018-10-25 Koenig & Bauer Ag Maschinenanordnung mit mehreren Bearbeitungsstationen zur Bearbeitung von Bogen
CN107567385B (zh) 2015-04-30 2020-12-01 柯尼格及包尔公开股份有限公司 用于依次加工单张纸状基材的方法和机器结构
DE102016207398B3 (de) † 2015-09-09 2016-08-18 Koenig & Bauer Ag Maschinenanordnung zum sequentiellen Bearbeiten mehrerer bogenförmiger jeweils eine Vorderseite und eine Rückseite aufweisender Substrate

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