EP2095950A1 - Procédé d'impression en creux à l'aide d'une plaque de pression échangeable - Google Patents

Procédé d'impression en creux à l'aide d'une plaque de pression échangeable Download PDF

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Publication number
EP2095950A1
EP2095950A1 EP09001129A EP09001129A EP2095950A1 EP 2095950 A1 EP2095950 A1 EP 2095950A1 EP 09001129 A EP09001129 A EP 09001129A EP 09001129 A EP09001129 A EP 09001129A EP 2095950 A1 EP2095950 A1 EP 2095950A1
Authority
EP
European Patent Office
Prior art keywords
printing
pressure
plate
roller
ink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09001129A
Other languages
German (de)
English (en)
Other versions
EP2095950B1 (fr
Inventor
Rainer Endres
Peter Schmitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KBA Metroprint AG
Original Assignee
KBA Metronic GmbH
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 KBA Metronic GmbH filed Critical KBA Metronic GmbH
Publication of EP2095950A1 publication Critical patent/EP2095950A1/fr
Application granted granted Critical
Publication of EP2095950B1 publication Critical patent/EP2095950B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/11—Gravure cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/32—Lifting or adjusting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1036—Clamping and adjusting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/04—Printing plates or foils; Materials therefor metallic
    • B41N1/06—Printing plates or foils; Materials therefor metallic for relief printing or intaglio printing

Definitions

  • the invention relates to a printing process for the production of color prints by means of a print-inkable printing roller having a printing surface.
  • the invention further relates to a printing unit of a printing machine comprising a roller having a printable ink surface, a printing machine with a printing unit and a pressure roller for such a printing unit.
  • Color printing refers to both single-color prints and multi-color prints.
  • a printing surface is understood to be any structured surface suitable for receiving ink for subsequent application to a roll material or a printed object, such as e.g. a sheet or disc-shaped print carrier, such as CD, DVD, etc.
  • the invention can be used particularly advantageously in gravure printing methods, but is not limited thereto.
  • the following statements apply, as far as they are not limited to the intaglio printing process in principle, also for other printing processes.
  • the gravure printing process is one of the printing processes with which the highest print quality can be achieved.
  • a printing roller is used as a printing original, in the lateral surface of which the original to be printed is introduced.
  • the individual pressure points are mechanically beaten in a previously applied to the lateral surface of the pressure roller ductile copper layer, resulting in a more or less deep pressure point depending on the frequency and striking impact.
  • printing roll blanks are provided in a first step on their lateral surface with a ductile copper layer, for example by means of a galvanic deposition. Subsequently, the thus prepared printing roll blanks are rotatably clamped in a corresponding device and rotated at a certain predetermined or predetermined speed about its longitudinal axis.
  • a stylus device with one or more diamond styli acting externally on the lateral surface now proposes one or more recesses in the copper layer for each printing point to be printed synchronously with the rotation of the printing roller, so that after one revolution of the printing roller a first printing line is generated on the lateral surface of the pressure roller.
  • the surface of the pressure roller produced in this way may optionally subsequently be polished in order to remove protruding burrs and subsequently be galvanically provided with a hard chromium layer in a subsequent step, whereby the mechanical influences on the transfer rollers and / or ink rollers and / or on the lateral surface in the printing operation Doctor blade etc. are reduced and thereby the service life of the pressure roller is increased.
  • the inking of the printing roller thus completed in the printing unit of a printing machine can be effected, for example, by the surface of the printing roller being immersed in the ink in an ink tank, whereby, inter alia, the printing dots of the printing surface realized on the surface are filled with ink. Because only these pressure points contribute to the printed image should be doctored off the surface of the pressure roller when unscrewing from the ink tray with a doctor blade, whereby the excess ink is removed. In addition, it is usually necessary to additionally clean the non-printing areas of the outer surface of the printing roller with wipers, so as to prevent color residues from remaining on the non-printing areas of the printing cylinder after being doctored off and resulting in undesirable toning or unwanted color spots in the printed image to lead.
  • the object of the invention is therefore to provide a printing method with which it is possible to flexibly and inexpensively produce different prints and in particular the high print quality of the gravure printing process with a simple and inexpensive production of the printing rollers and a simple and fast change between different images in a printing press to combine.
  • a pressure roller having a pressure surface which has an exchangeable at least partially cylindrical pressure plate comprising the pressure plate, which is releasably attachable by means of at least one fastening device to a roller body.
  • a printing unit with such a pressure roller for a printing press which comprises a pressure roller which has a printable color inkable surface, and in which the pressure surface is formed on an at least partially cylindrical replaceable pressure plate on the outer surface of a Roller body of the pressure roller is releasably clamped / clamped and which further comprises a closable and openable ink chamber, which is driven to transfer ink depending on the rotational angular position of the pressure roller on the pressure surface of the printing plate.
  • the object is achieved by a printing method in which on the lateral surface of the roller body of a pressure roller an exchangeable pressure surface having at least partially cylindrical pressure plate is clamped and for transferring ink from a ink chamber to the printing plate, the ink chamber in dependence of the rotational angular position of the pressure roller opened and closed.
  • a printing method in which on the lateral surface of the roller body of a pressure roller an exchangeable pressure surface having at least partially cylindrical pressure plate is clamped and for transferring ink from a ink chamber to the printing plate, the ink chamber in dependence of the rotational angular position of the pressure roller opened and closed.
  • a corresponding printing plate is used, which is fastened on a fixedly installed in a printing press roller body, so in the entirety forms a pressure roller and also in can be easily replaced.
  • an inking device is used for direct inking of the printing plate.
  • the invention thus comprehensively describes a printing method, in particular a gravure printing method with a replaceable printing plate, in particular the printable surface of which has printing dots or printing lines with different depth and / or different surface size in gravure printing for producing different optical densities in the printed image and / or ink accepting and / or or ink-repellent areas for transferring ink to a substrate.
  • the printing plate in a gravure printing application has the properties required for gravure printing, such as, for example, a variable dot shape and / or dot depth and / or a gridless and / or screened dot arrangement.
  • the printing plate preferably has a surface hardness and surface quality as usual in gravure printing.
  • the inking device for transferring a printing ink to the printing plate surface on a paint reservoir, in particular which is connected to a color supply.
  • the inking device on its side facing the pressure plate on at least one working doctor blade and a closing blade, which can be displaced relative to each other in a preferred development and whereby a gap formed by the pressure plate facing the leading edge of the doctor blade formed gap can be selectively closed or opened.
  • the pressure plate facing the leading edges of the working doctor blade and the squeegee of the inking device can be selectively lifted off of the printing plate, for example, when a rotation of the pressure roller about its longitudinal axis a smooth due to the required for the printing plate fasteners trained area of the pressure roller ,
  • it can be provided to actively move the closed squeegee or the entire closed inking device away from the roller or the pressure plate mounted thereon by an actuator so that the area with the fastening elements in this moved-away state passes under the inking device can. Then the reset can be done by the actuator.
  • the closed squeegee or the closed inking device remain stationary relative to the axis of rotation of the pressure roller or the pressure plate attached thereto and a lifting of the doctor blade from the surface of the printing plate takes place in that the surface of the Pressure plate removed from the stationary squeegee.
  • the said specific angular range in which the radius is reduced is arranged symmetrically around the fastening region of the pressure roller or pressure plate, in particular symmetrically around a recess forming this fastening region or fastening means.
  • the angular range may e.g. smaller plus / minus 35 to 55 degrees around the attachment area / recess.
  • the angle range can also be asymmetrical on both sides.
  • the reduction is designed such that it takes place from both sides in the direction of the mounting region of the roller or pressure plate. This means that viewed in the direction of rotation, the radius of the roller / pressure plate from the maximum radius in the pressure range initially in the direction of Reduced mounting area and then increased again from the mounting area until the maximum radius is reached again.
  • the radius of the roller or pressure plate is thus reduced in a region adjacent to the fastening region / recess immediately adjacent thereto.
  • the radius reduction can be in one embodiment, for example, 5 to 20%, preferably 8 to 12% based on the maximum radius in the printing area of the printing plate / roller amount.
  • the area of the roller / pressure plate which is reduced in radius on both sides of the fastening area can be completely identical on both sides, but it can also be provided to make the change in radius of the area following the direction of rotation smaller and / or to make the angular extent larger in comparison to FIG in the direction of rotation leading area, in particular so as to achieve a comparatively rapid lifting of the doctor in the advanced and gentle recovery in the trailing area.
  • the reduction of the radius to be effected from both sides onto the fastening region of the roller / pressure plate takes place in each case starting from the maximum radius with a flowing transition and, in the case of the roller, in the recess or in the pressure plate in particular abruptly a fold passes, in particular which engages / can intervene in this recess. It may also be provided in this case, in the recess holding devices and / or clamping devices and / or adjusting devices for fastening and / or for adjusting the pressure plate to be arranged so that the upper edge is always at least below the maximum radius.
  • the printing plate facing the leading edges of the doctor blade at a certain first rotational angular position of the pressure roller on the surface of the printing plate set up and / or press and at a certain second angular position of the pressure roller to lift the leading edges of the doctor blade from the surface of the printing plate.
  • it can be provided immediately before lifting the leading edges of the doctor blade from the surface of the printing plate, the ink reservoir of the inking device and / or in particular the area formed by the leading edges of the doctor blade with a negative pressure, whereby a printing ink from the surface the printing plate is sucked back into the paint application device.
  • an area formed by the leading edges of the doctor blades is provided with a plurality of individual channels, which are each connected individually or in groups to a respective paint reservoir.
  • the respective ink reservoirs have the same or different printing ink.
  • a pressure plate made of metal, for example stainless steel, nickel, etc. or provided with a copper layer metal plate or a multi-layered metal plate, for example, stainless steel, nickel, copper and chromium.
  • a pressure plate made of metal provided with a scratch-resistant protective layer, for example a pressure plate made of aluminum, the surface of which, for example by means of a plasma process, has been converted into a scratch-resistant and dense oxide layer or ceramic layer or, for example, a pressure plate, the surface of which a diamond-like carbon layer is coated.
  • a scratch-resistant protective layer for example a pressure plate made of aluminum, the surface of which, for example by means of a plasma process, has been converted into a scratch-resistant and dense oxide layer or ceramic layer or, for example, a pressure plate, the surface of which a diamond-like carbon layer is coated.
  • the printing plate may be provided to image the printing plate mechanically, for example by means of a stylus, which is moved in a controlled manner over the surface of the printing plate and mechanically impresses printing dots into the surface of the printing plate. It may also be provided that the imaging of the printing plate by means of laser ablation, e.g. thermal or chemical type or by means of an etching process.
  • a laser for generating different pressure point depths and / or pressure point sizes, which laser can generate individual laser pulses of different intensity.
  • the laser radiation can be focused onto a focal point in the imaging plane or, in particular, by means of a controlled device to shift a focal point selectively above or below the imaging plane.
  • lasers operating in the infrared, visible or ultraviolet wavelength range can be used for this purpose.
  • a printing plate according to the invention can be imaged in a separate unit, for example in a known manner, similar to a conventional gravure roll, so that, for example, printing dots of different arrangement and / or depth can be produced.
  • printing plates in comparison to the known pressure rollers have the advantage that they are much cheaper to produce, although the production of a gravure printing plate in comparison to the production of conventional printing plates such as offset printing plates or flexographic printing plates can be more complex and expensive.
  • a further advantage is that when using gravure plates a quick change of motif on a printing press can be performed within a few minutes, since in this case only light and easy-to-use printing plates must be replaced and not as usual in the prior art heavy and cumbersome printing rollers.
  • the necessary adjustments to achieve accurate registration prints are much faster and more flexible to perform when using printing plates, since according to the invention such plates can be positioned on corresponding and, for example, on the platen and provided for adjusting along and / or transverse to the printing direction, in particular Preferably, a tilt by means of appropriate adjustment is adjustable so that the necessary adjustments can be done faster and more accurate and thereby significantly higher productivity of a printing press is possible.
  • One of the main points of the process according to the invention is the inking of the printing plate fastened to the printing roll, in particular gravure printing plate by means of a suitable inking device.
  • the gravure printing method is generally used as a direct printing method in order to achieve the characteristic gravure features in the print image
  • the gravure printing plate attached to the printing cylinder is preferably at the same time acting as a color scoop roller. whereby it is possible to fill each of the printing areas formed on the printing plate with different depths and thus different color scoop volumes completely with printing ink.
  • the inking device for coloring the attached to a printing cylinder gravure plate in such a way that it rests only in the intended area for printing a region of the printing plate on the printing plate and these colors.
  • this has at least in a region of its lateral surface, in particular along the axis, holding devices and / or clamping devices and / or adjusting devices, with which the pressure plate can be clamped onto the lateral surface of the pressure roller body, in particular where There, for example, can be aligned against reference points.
  • the said holding devices and / or adjusting devices may preferably be located, for example, in a recess running essentially parallel to the pressure roller axis in the lateral surface of the pressure roller.
  • inking the intaglio printing plate with a conventional inking device would also get into said recess printing ink, which would lead to an unacceptable and undesirable contamination of the printing press.
  • the paint application device in such a way that one of the printing plate facing opening for transferring the ink to the printing plate can be selectively closed and / or the contact of the ink can be interrupted to the printing plate.
  • This makes it possible to close the inking device to the printing plate and / or lift off from the printing plate surface upon rotation of the pressure roller about its axis, for example, immediately before reaching the recess, whereby an uncontrolled leakage of the ink into the recess or contamination of the printing press effectively can be prevented.
  • the opening and closing of the doctor blade and / or the lifting of the doctor blade from the gravure printing plate for example, curve-controlled via corresponding attached to the platen cams or for example by means of their own electrical or pneumatic or similar drives, which in a particularly simple manner, the times of opening and closing and / or lifting and setting up and optionally speed-dependent control.
  • the inking device may also be expedient to perform the inking device at least partially as a closed ink chamber, so that it is possible, in particular immediately before closing the ink chamber to the pressure plate out to apply this at least temporarily with a negative pressure, whereby the between the doctor blades on the surface of the printing plate resting pressure ink is withdrawn into the ink chamber and which is avoided in particular in a movement of the doctor blade edges toward each other for closing the ink chamber an inadmissible squeezing of ink from the gap formed by the leading edges of the doctor blade and an associated undesirable contamination of the printing plate and / or the printing press ,
  • the inking device may also be expedient to perform the inking device at least partially as a closed chamber so that it is possible, at least temporarily to apply at least temporarily with an overpressure during or immediately after opening of the ink chamber on the doctor blade to the pressure plate, whereby a printing ink faster on the Surface of the printing plate passes and thus a reliable coloring of the printing plate is made possible even at higher speeds of the pressure roller.
  • angles of incidence of the doctor blades on the surface of the printing plate can be made both positive and negative as required, so that a reliable Abrakeln of excess ink is guaranteed by the non-imaging areas of the printing plate and thus the desired print quality can be achieved.
  • the inking device in the direction of the pressure roller axis with at least two separate chambers, which open into a common application gap formed by the leading edges of the doctor blade.
  • the ink chambers open, for example, within the paint application device immediately before the gap formed by the leading edges of the doctor blade fair in a common volume in which the inks can mix, especially at their border areas.
  • a continuous color transition which is customary in the case of color gradient printing, is formed, which can be transferred via the printing plate, preferably a gravure printing plate, to a printing material in a pictorial manner.
  • Such cleaning can take place cyclically at certain time intervals or after a corresponding number of roller revolutions or pressures or also as required.
  • FIG. 1 shows a schematic representation of an apparatus for the production of conventional gravure rolls according to the prior art.
  • the pressure roller 4 is rotatably mounted, for example, in a receiving device 62.
  • the receiving device 62 has, for example, a receiving bed 62a and receiving legs 62b, whereby the pressure roller 4 can be held in a horizontal position, for example, and can be rotated about its axis of rotation 4a in the direction 100 by means of a drive, not shown.
  • a grader device 60 is mounted so that the stylus 61 can act on the lateral surface 4b of the pressure roller 4.
  • the stylus 61 is in this case for example made of diamond or another hard material and can perform an electric or pneumatic or other type of control in rapid succession movements in the direction of the jacket surface 4b, whereby depending on the strength of the drive signal for generating the different pressure points in the print image area 5 of the Mantle surface 4b of the pressure roller 4 more or less large depressions are beaten.
  • the print image 5a on the printing drum 4 can be constructed, for example, by moving the engraving device 60 parallel to the lateral surface 4b of the printing cylinder 4 and at a substantially constant distance along the direction 110.
  • the movement of the stylus device 60 along the direction 110 can take place continuously and synchronously with the rotational movement 100 of the pressure roller 4, whereby, for example, on the lateral surface 4b in the print image area 5 of the pressure roller, a printed image 5a constructed from a spiral pressure line can be produced.
  • the movement of the graver device 60 may be timed by the graver device 60 being displaced by a certain step along the direction 110 after each rotation of the pressure roller 4. This makes it possible to avoid the angulation of the printed image 5a produced by the spiral arrangement of the printing line, as occurs during continuous movement of the engraving unit.
  • the movements of the stylus itself are also synchronized with the rotational movement of the pressure roller and synchronized with the movement of the stylus device 60 along the direction 110.
  • FIG. 2 shows a schematic representation of the production of a gravure printing plate 10 according to the invention.
  • the device may in this case substantially similar to the in FIG. 1 be constructed arrangement, wherein the pressure roller body 1 here serves to receive a pressure plate 10 and, for example, remain permanently in the receiving device 62. By attaching the here at least partially cylindrical pressure plate 10 formed on the roller body 1 results in a pressure roller.
  • the intaglio printing plate 10 is substantially cylindrical in this case, wherein the ends of the intaglio plate face each other at a distance, in particular where these can be folded. These ends form a leading edge and a trailing edge of the intaglio printing plate 10. It thus forms a hollow cylindrical shape with a slot in the lateral surface parallel to the rotational axis direction 1a between these two edges.
  • a gravure printing plate 10 according to the invention also has an elasticity, due to which it can be reversibly expanded in diameter, e.g. so far that the gravure plate can be placed / pushed onto the roller 1 over the axle holders 62 or by the printing plate can be wound onto the roller surface 1 b.
  • the roller body 1 For fixing a gravure plate 10 on the lateral surface 1 b of the roller body 1, the roller body 1 on its lateral surface parallel to its axis 1 a, for example, a recess 1 c, in which holding devices and / or clamping devices, not shown, may be attached, with which the gravure plate 10 held with its leading edge and its trailing edge and can be stretched over the lateral surface 1b of the roller 1. It may be provided that these holding or clamping devices are designed to grip the front and rear edges of the intaglio printing plate and / or to clamp, in particular in order to pull them toward each other.
  • the imaging of the printing plate 10 can then take place in substantially the same manner as already described with a continuous or a clocked movement of a stylus device 60, wherein at least the attachment region 1c is excluded.
  • FIGS. 3a to 3d show schematically the operation of a paint application device according to the invention during operation.
  • the paint application device 2 can be substantially constructed as a conventional ink chamber, for example, by two doctor blade 2a, 2b with each attachable thereto doctor blades 3a, 3b, and not shown side shields, creating a volume, for example, having a substantially triangular cross section for receiving is formed by printing ink.
  • FIG. 3a shows the operation of the paint application device according to the invention at a first time at which the leading edges of the doctor blades 3a, 3b are pressed against each other and thereby the opening 30 is closed.
  • the roller body 1 Upon rotation of the roller body 1 in the direction 100 about its axis 1 a are the leading edges of the doctor blade in the first rotational angular position of the roller body 1 shown for example on a viewed in the direction of rotation 100 front portion of the gravure plate 10.
  • the movable mounted doctor blade 2b are opened with the attached doctor blade 3b in the direction 102a of the gap 30 so that ink from the paint application device reaches the surface of the gravure plate, as shown in FIG. 3b is shown schematically.
  • the printing plate 10 is inked with printing ink, for example, the doctor blade 3b acts as a working doctor blade and the doctor blade 3a as a closing blade.
  • the paint application device 2 to run as a closed ink chamber, whereby the possibility is created, for example, during the opening operation of the paint application device 2, as shown schematically in FIG. 3a is shown, at least temporarily to apply an overpressure, whereby the ink passes faster from the interior of the inking device on the surface of the gravure plate 10.
  • the paint application device 2 during the closing operation as shown schematically in FIG Figure 3c is shown to apply a negative pressure, whereby the ink is conveyed effectively into the interior of the inking device and squeezing of ink on the surface of the gravure plate 10 is prevented from the closing gap 30.
  • FIGS. 4a to 4d show for clarification the described inventive method in a schematic perspective view. It is easy to see that upon reaching the seen in the direction of rotation 100 beginning of the printing plate 10 on the lateral surface 1 b of the pressure roller, thus in the first rotational angular position, the leading edges of the doctor blades 3a, 3b still lie on each other and the inking device 2 to the pressure plate 10th is still closed. At the same time, the leading edges of the doctor blades are as in FIG. 4a shown already on the surface of the printing plate 10, so that the inking device can be opened, for example by means of a movement 102a of the closing blade 3b to the pressure roller, whereby ink passes from the interior of the inking device 2 on the pressure plate 10.
  • the pressure roller 1 can be easily rotated under the paint application device 2, as in FIG. 4d shown. It can also be provided that when the mounting portion 1 c of the roller body 1 passes under the closed inking device and the doctor blade are lifted from the surface of the gravure printing plate and only for coloring the printing area the gravure plate are lowered to this, in particular before or from the first rotational angular position.
  • the control of the movements of the working doctor blade 3b for example, by means of a higher-level control and corresponding sensors or by a corresponding mechanical coupling of the moving device for opening and closing the inking device with the movement of the pressure roller, for example via corresponding cams.
  • FIG. 5a shows a further embodiment according to the invention of a paint application device for coloring a gravure printing plate.
  • the paint application device 2 in this case has a doctor blade 2a with a doctor blade 3a attached thereto and a doctor blade 2b with a doctor blade 3b attached thereto.
  • the inking device 2 on the short sides respective side shields 20 whereby a volume for receiving ink is formed.
  • the inking device 2 further has to the roller 1 towards an opening 30 which is formed between the doctor blade edges and passes through which printing ink on the lateral surface 1 b or on the surface of a stretched on the outer surface 1 b of the roller 1 pressure plate 10.
  • the doctor blade 2b with the doctor blade 3b according to the invention for example, movably attached to a device 6, that the front edge of the doctor blade 3b in a first position on the front edge of the doctor blade 3a is applied, whereby the pressure plate 10 formed opening 30 is closed and no ink uncontrolled can emerge from the paint application device 2 in the direction of the printing plate 10.
  • a recess 1 c located in the roller body 1 for fastening the pressure plate 10 under the paint application device 2 rotated through without ink enters the recess 1c and thus leads to an inadmissible contamination.
  • the leading edges of the doctor blades 3a, 4b not only in the region of the recess 1 c of the roller body 1 have no mechanical contact with the roller surface 1 b or the surface of the printing plates, but also in adjacent areas 1 d, 1 e.
  • the respective roller radii in the recess 1 c adjacent areas 1d, 1e be continuously reduced so far that the leading edges of the doctor blade from the surface of the pressure plate 10 are steadily and gently lifted or again steadily and gently on the surface of the pressure plate 10th be hired, whereby damage to the doctor blade edges or the pressure plate 10 by abrupt mechanical stresses, in particular when Wiederanstellen the doctor blade edges are avoided on the pressure plate 10.
  • the movement of at least one of the squeegee bars with doctor blade located thereon can be done, for example, by means of a parallel jack-like device 6, whereby, for example, the leading edge of the in FIG. 5a Doctor blade 3b acting as a closing squeegee is moved on a circular segment whose radius and position can be adapted to the radius and the position of the pressure plate 10 fastened to the roller body 1.
  • This causes the angle of attack of the doctor blade 3b on the surface of the pressure plate 10 and the Anstell theory thereby applied during the closing movement or during the opening movement remain substantially the same, whereby damage to the doctor blade 3b and the surface of the pressure plate 10 is avoided.
  • FIG. 5b further shows the doctor bar 2b with the doctor blade 3b in a second position in which the inking device 2 is opened to the surface of the printing plate 10 via the opening 30 inking device, whereby Ink can reach the printing plate 10.
  • excess ink is doctored from the surface of the printing plate 10 and conveyed back into the interior of the paint application device 2 in a known manner, so that only the provided for a print depressions in the printing plate 10 are filled with ink.
  • the inking device is here preferably controlled such that from a first rotational angular position to the second rotational angular position the doctor blades open the inking device and close the paint application device from the second to the first rotational angular position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Rotary Presses (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP09001129A 2008-02-26 2009-01-28 Procédé d'impression en creux à l'aide d'une plaque de pression échangeable Not-in-force EP2095950B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008011203A DE102008011203B4 (de) 2008-02-26 2008-02-26 Druckverfahren und Druckwerk

Publications (2)

Publication Number Publication Date
EP2095950A1 true EP2095950A1 (fr) 2009-09-02
EP2095950B1 EP2095950B1 (fr) 2010-11-10

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EP09001129A Not-in-force EP2095950B1 (fr) 2008-02-26 2009-01-28 Procédé d'impression en creux à l'aide d'une plaque de pression échangeable

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Country Link
US (1) US20090211472A1 (fr)
EP (1) EP2095950B1 (fr)
AT (1) ATE487597T1 (fr)
DE (2) DE102008011203B4 (fr)

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US20110315030A1 (en) * 2010-06-29 2011-12-29 Chun-Huang Lin Photogravure process for identification code
WO2015029019A2 (fr) * 2013-08-27 2015-03-05 Technion Research & Development Foundation Limited. Système et procédé de tampographie
TWI574846B (zh) * 2016-02-18 2017-03-21 財團法人工業技術研究院 凹版印刷裝置
CN116753820B (zh) * 2023-08-16 2023-11-14 枣庄金大包装有限公司 一种凹版印刷机刮墨刀的角度测量尺

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US4085672A (en) 1975-09-11 1978-04-25 John Grosart Inking device
DE9002319U1 (fr) 1989-04-18 1990-05-10 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5656083A (en) 1994-07-19 1997-08-12 Man Roland Druckmachinen Ag Chamber doctor

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DE2105633A1 (de) * 1971-02-06 1972-08-10 Koenig & Bauer Schnellpressfab Plattenspannvorrichtung bei Stahlstichmaschinen
JPS57205152A (en) * 1981-06-13 1982-12-16 Komori Printing Mach Co Ltd Color register adjusting device for sheet printer
DE3314083C2 (de) * 1983-04-19 1985-07-11 MDC Max Dätwyler Bleienbach AG, Bleienbach Biegsame Druckplatte für einen Formzylinder für den Rotationstiefdruck
JP2926656B2 (ja) * 1989-09-13 1999-07-28 アキヤマ印刷機製造 株式会社 枚葉印刷機の版ひねり調整機構
US5937760A (en) * 1996-03-19 1999-08-17 Mitsubishi Paper Mills, Limited Method and device for mounting a lithoplate using register pins
DE10028479A1 (de) * 2000-06-08 2001-12-13 Roland Man Druckmasch Kammerrakel
JP2005088586A (ja) * 2003-09-12 2005-04-07 Metronic Ag インキ壺

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Publication number Priority date Publication date Assignee Title
US4085672A (en) 1975-09-11 1978-04-25 John Grosart Inking device
DE9002319U1 (fr) 1989-04-18 1990-05-10 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5656083A (en) 1994-07-19 1997-08-12 Man Roland Druckmachinen Ag Chamber doctor

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DE102008011203B4 (de) 2010-11-25
DE502009000154D1 (de) 2010-12-23
ATE487597T1 (de) 2010-11-15
EP2095950B1 (fr) 2010-11-10
US20090211472A1 (en) 2009-08-27

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