EP1911586B1 - Mécanisme d'encrage court pour une machine de traitement - Google Patents

Mécanisme d'encrage court pour une machine de traitement Download PDF

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Publication number
EP1911586B1
EP1911586B1 EP07018331.4A EP07018331A EP1911586B1 EP 1911586 B1 EP1911586 B1 EP 1911586B1 EP 07018331 A EP07018331 A EP 07018331A EP 1911586 B1 EP1911586 B1 EP 1911586B1
Authority
EP
European Patent Office
Prior art keywords
roller
printing press
press according
core
ink application
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.)
Not-in-force
Application number
EP07018331.4A
Other languages
German (de)
English (en)
Other versions
EP1911586A2 (fr
EP1911586A3 (fr
Inventor
Franz-Peter Richter
Jürgen Schölzig
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 Sheetfed GmbH
Original Assignee
Manroland Sheetfed 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 Manroland Sheetfed GmbH filed Critical Manroland Sheetfed GmbH
Publication of EP1911586A2 publication Critical patent/EP1911586A2/fr
Publication of EP1911586A3 publication Critical patent/EP1911586A3/fr
Application granted granted Critical
Publication of EP1911586B1 publication Critical patent/EP1911586B1/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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers
    • 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
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds

Definitions

  • the invention relates to a printing machine with a short inking unit according to the preamble of claim 1.
  • Such short inking units are preferably used in printing and / or painting machines.
  • Short inking units according to the anilox principle are characterized in that these ink roller assemblies and a color ink free ink supply, especially without ink fountain keys, have that guarantee a uniform coloring of the printing plate.
  • a color of preferably lower viscosity than conventional inking units is used.
  • a short inking unit of this kind is out DE 44 31 464 A1 known, which has a metering system with a short ink roller train.
  • the dosing system comprises an anilox roll also referred to as anilox roll with circumferentially arranged, cup or groove-shaped, can be filled with paint or varnish depressions and intervening webs.
  • the dosing system comprises a squeegee device, especially a chamber doctor blade, which scraps the anilox roller circumferentially.
  • the anilox roller cooperates with an inking roller forming the short roller train, which in turn is in operative connection with a plate / forme cylinder.
  • the diameters of blanket cylinder, forme cylinder and inking roller are the same.
  • the peripheral speed of the inking roller is different from the peripheral speed of the anilox roller.
  • the plate / forme cylinder is still with a blanket cylinder and the blanket cylinder is operatively connected to a printing material leading impression cylinder.
  • Another inking unit comprises a paint box with a doctor blade, an anilox roller, an inking roller and a forme cylinder.
  • the short inking unit is tempered by the rollers or cylinders can be cooled or heated by a temperature control.
  • the amount of ink can be controlled by means of characteristic curves, taking into consideration the type of printing material, the color type and the color temperature.
  • a short inking unit which has a simple color cylinder with associated ink fountain and arranged on the ink fountain ink dosing. Furthermore, this inking unit comprises at least one color roller with a hard surface finish downstream inking roller with an elastic surface, which are a plate cylinder and this in turn a blanket cylinder downstream.
  • the diameter of the inking roller corresponds in a first embodiment, the diameter of the plate cylinder diameter.
  • two ink applicator rollers resting against the plate cylinder are provided between the ink cylinder and the plate cylinder, the diameters of which correspond to the plate cylinder diameter or whose diameter closely approximates the plate cylinder diameter, the diameters of the inking rollers being approximately 1 mm thicker than the diameter of the plate cylinder for subsequent regrinding are.
  • a short inking unit which includes, among other things, an anilox roller and an inking roller.
  • the diameter of the inking roller corresponds to the diameter of the printing plate (on the plate cylinder).
  • the inking roller has an elastomeric roller cover.
  • a single roll is known, on the roll core concentrically a foam rubber layer is arranged. Concentric on the foam rubber layer is an elastic rubber layer. Preferably, a rubber blanket coated on both sides is arranged between the roll core and the foam rubber layer, and the layers are vulcanized with one another and thus adhesively bonded.
  • the layers can be arranged in several layers on the roll core.
  • an inking unit is known in a web offset printing press.
  • the inking unit shows an inking roller, which is equipped with an approximately equal diameter, as it has the plate cylinder.
  • This inking roller is associated with an anilox roller with a smaller diameter.
  • On the inking roller for the color transfer to form a rubber jacket several separate blankets with a hardness of 60 to 80 Shore glued.
  • the object of the invention is to improve a short inking unit of the type mentioned in such a way that the print quality reducing influences, in particular vibrations from the channel passage of a cylinder and strip-shaped disturbances of the print quality, are noticeably avoided.
  • a first advantage of the invention is that the processing machine is a short inking unit with a relatively small number of rollers, preferably at least one screen roller (anilox roller) with metering system and an inking roller with a compressible roller coating , a noticeably improved behavior compared to the quality occurring in the printing process has diminishing influences.
  • a noticeably improved behavior in the entire short inking unit can be achieved.
  • these shocks or vibrations excited by the passage through the duct are perceptibly reduced despite a relatively small number of rollers and are not transferred further into the printing unit.
  • the adverse behavior (the quality-reducing influences, such as shocks and vibrations in the channel passage of a plate / forme cylinder) in previously known short inking units is significantly reduced by the new solution.
  • stenciling phenomena defects in which a printing object offset in the printing direction is at least once additionally apparent
  • anilox roller and compressible inking roller taking into account the respective outside diameter
  • the inking roller with a compressible roller coating has the same or larger outer diameter, relative to a plate / forme cylinder, in order, in particular, to avoid stenciling phenomena impairing the quality.
  • the anilox roller has a smaller or the same outer diameter relative to a plate / forme cylinder.
  • a third advantage is that at least the inking roller with a compressible roller coating in a preferred embodiment has a roller core which has a high axial elastic modulus, is relatively rigid and has a relatively low mass.
  • the anilox roller having a metallic or ceramic surface may also have a roll core which is analogous to the compressible inking roller.
  • the plate / forme cylinder can also have an analogue roller core. The roller core of the anilox roller and that of the plate / forme cylinder also have a high axial elastic modulus, are relatively rigid and have a relatively low mass.
  • a fourth advantage is that the inking roller can be tempered with a compressible roller coating and / or the anilox roller and, if required, further rollers or cylinders, so that the temperature level required for processing the respective ink can be ensured in the short inking unit.
  • the inking roller and, if necessary, the anilox roller each have at least one tempering device arranged in their roller core.
  • the rollers or cylinders can be assigned from the outside, on the surface acting tempering adjacent.
  • a fifth advantage results from the fact that the processing machine is not limited to a single short inking unit. Rather, the processing machine a plurality of printing units, in particular in a row construction, having at least one short inking unit with at least one inking roller with a compressible roller coating.
  • Anilox rollers with invariable wells, cells or grooves can be used in the metering systems. For example, in at least two printing units with short inking units anilox rollers with unchangeable cells, cells or grooves are arranged. These anilox rollers can have wells, cells or grooves with the same or different pumping volumes.
  • the first short inking unit in the conveying direction of the printing material has an anilox roller with a lower priming volume
  • the second short inking unit has an anilox roller with a higher priming volume (or vice versa).
  • at least one such anilox roller can have changeable cells or cells and thus, as required, changing scoop volumes, such as, for example DE 3938449 C2 or DE 4408615 C2 is known.
  • Fig. 1 is a short inking unit for a processing machine, especially for a sheet-fed printing press, shown, which is a printing substrate 4 in the conveying direction 3, a standing with the printing cylinder 4 in the region of a printing nip 11 in operative connection blanket cylinder 2 and one with the blanket cylinder 2 in operative connection plates - / Form cylinder 1 includes.
  • printing cylinder 4, blanket cylinder 2 and plate / forme cylinder 1 each have cylinder channels 12 for receiving gripper systems or clamping devices.
  • a dampening unit 13 with at least one dampening applicator roll is assigned to the plate / forme cylinder 1.
  • an anilox roller 6 with näpfchenartigen (cells) or groove-like (Haschuren) recesses on the roller surface upstream, which with a doctor device 7, preferably a chambered doctor blade with a first and second doctor blade 7a, 7b, with connected ink supply 8 is in operative connection.
  • the first doctor blade 7a is designed as a negative pressure to the anilox roller 6 working doctor blade and the second doctor blade 7b as positive to the anilox roller 6 employed squeegee.
  • the squeegee device 7 is preferably arranged on the side of the anilox roller 6 which conveys the printing material in the conveying direction 3. Alternatively, a vertical to the anilox roller 6 arrangement of the doctor device 7 'realized be.
  • the doctor device 7 is not limited to the present embodiment.
  • the squeegee device 7 may also comprise a roll squeegee known per se.
  • an ink reservoir, at least one ink cartridge, etc., or a manual supply may be present.
  • the anilox roller 6 can be connected to a machine drive (main drive with gear train) or preferably to a self-propelled individual drive 9, which is coupled in terms of circuitry to a machine control 10.
  • at least one further inking roller can be arranged as a transfer roller (not shown).
  • This further inking roller (transfer roller) may be a conventional inking roller with a rubber coating, a blanket cylinder or an inking roller with a compressible roller coating 28. The latter is identical to the inking roller 5, which will be described in more detail.
  • two identical inking rollers 5, each with a compressible roller coating 28 in series are assigned directly to the plate / forme cylinder 1 and both are in operative connection with an upstream transfer roller.
  • the anilox roller 6 is turned on / off.
  • Such Farbzuftragwalze 5 has a core 15 on which concentric at least one polymeric material having or containing roller coating 28 is preferably arranged adherent.
  • the roll coating 28 has a greater Shore A hardness in the radial direction to a roll surface 29 of the inking roller 5 leading to the medium to be processed and is elastic. Furthermore, the roll coating 28 in the radial direction to the core 15 has a lower Shore A hardness and is compressible.
  • the roller surface 29 in this case has a - with respect to the effective outer diameter of the plate / forme cylinder 1 - at least the same outer diameter.
  • the effective diameter of the plate / forme cylinder 1 is through the cylinder outer diameter and the printing form thereon, possibly with a base, defined.
  • the roll coating 28 may be adhesively bonded to the core 15 or adhered to a sleeve (sleeve technique) which can be pushed or pulled off the core 15 in the axial direction.
  • the respective roller coating 28 is adhesively bonded to the sleeve.
  • the roll coating 28 - starting from the roll surface 29 leading to the medium to be processed in the radial direction to the core 15 - has a substantially continuous hardness drop of the Shore A hardness.
  • the roll coating 28, starting from the roll surface 29 leading to the medium to be processed in the radial direction to the core 15, has a surface layer 30 enclosing the roll surface 29 of a specific thickness, for example a thickness of ⁇ 50 ⁇ m, and a uniformly high shore -A hardness on.
  • This edge layer 30 is then downstream of the further roll coating 28 in the radial direction to the core 15, which has a substantially continuous hardness drop (in the direction of the core 15) of the Shore A hardness.
  • the roll coating 28 comprises a lower compressible layer 16 with a low Shore A hardness, which is adhesively bonded to the core 15, and on this layer 16 is (concentrically) an elastic cover layer 17 enclosing the roll surface 29 with respect to the lower layer 16 larger Shore A hardness adherent.
  • the inking roller 5 according to Fig. 6 an axis 14 (roll axis) with the associated core 15 (roll core).
  • a lower layer 16 of a cellular foam material is arranged concentrically adherent.
  • an elastic cover layer 17 of an elastomer (preferably rubber) is arranged concentrically adherent, which is bounded by the rolling surface 29 leading to the medium to be processed.
  • All adherent compounds are preferably realized as adhesive bonds or by vulcanization.
  • the roll coating 28 itself or the edge layer 30 or the cover layer 17 (with respective roller surface 29) of the inking roller 5 a - with respect to the effective outer diameter of the plate / forme cylinder 1-at least the same outer diameter.
  • the roller coating 28, the edge layer 30 and the cover layer 17 (each with roller surface 29) of the inking roller 5 a - with respect to the plate / forme cylinder 1 - have larger outer diameter.
  • the anilox roller 6 preferably has - with respect to the plate / forme cylinder 1 - a smaller ( Fig. 1 to 4 ) or the same outer diameter ( Fig. 5 ) on.
  • the anilox roller 6 has according to Fig. 7 (Analogous to the inking roller 5) has an axis 14 with an associated core 15.
  • a layer 26 is arranged concentrically with a scored roll surface.
  • the layer 26 may be formed of a metallic or preferably a ceramic material.
  • the layer 26 can be directly ( Fig. 8 ) or indirectly by arrangement of an intermediate layer on the core 15 to be adherent.
  • the anilox roller 6 can be arranged adherently on a sleeve which can be pushed or pulled off on the core 15 in the axial direction.
  • the core 15 of inking roller 5 and / or anilox roller 6 and / or plate / forme cylinder 1 comprises a metallic material or preferably a fiber composite material made of carbon, each with a high axial elastic modulus.
  • the core 15 may be formed as a solid material or as a hollow cylinder.
  • each core 15 has an axial modulus of elasticity of 100 to 450 GPa, preferably of a fiber composite material of carbon.
  • the core 15 comprises a metal-carbon composite.
  • the core 15 may have an area of carbon assigned to the axis 14 and a region of a metal, for example a metal, which is arranged concentrically with the carbon region and assigned to the roll coating 28.
  • the metal region may have channels for a temperature control.
  • each tempering device 23 has at least one flow channel through which a temperature control medium flows.
  • the at least one flow channel is coupled to the supply line 21 and a return line 22 and a Temperierschaufhneungsstrom for the temperature control line side.
  • the tempering device 23 may have at least one heating or cooling cartridge.
  • Each tempering device 23 is preferably coupled to a control or regulating device and coupled in terms of circuitry to the machine control 10.
  • the inking roller 5, the anilox roller 6 and the plate / forme cylinder 1 each have a temperature control according to DE 197 36 339 A1 be assigned. Between the anilox roller 6, inking roller 5 and, if required, plate / forme cylinder 1, it is possible to set a temperature gradient, at least by means of the tempering devices 23, at the printing unit.
  • the core 15 as a hollow cylinder may have an inner layer 15a arranged concentrically to the axis 14 and an outer layer 15c arranged concentrically with the inner layer 15a at a distance. Between inner layer 15a and outer layer 15c, an intermediate layer 15b is adherent to these layers 15a; 15c arranged and at least one of these layers 15a to 15c is made of a fiber composite material made of carbon, preferably CFK. Preferably, at least the two layers 15a and 15c are made of such a fiber composite material made of carbon.
  • the intermediate layer 15b may be formed from a plurality of spacer elements 15d, which are preferably designed rod-shaped in the direction of the axis 14.
  • the tempering device 23 is preferably arranged in the intermediate layer 15b.
  • the tempering device 23 by line side and / or circuitry coupled flow channels and / or heating / cooling cartridges be formed, which are arranged integrated in the direction of the axis 14 in the distancing elements 15d.
  • Fig. 2 are two identical short inking units with squeegee device 7, ink supply 8, anilox roller 6, inking roller 5 (with compressible roller coating 28), and in each case a plate / forme cylinder 1 and each a blanket cylinder 2 shown, which are in operative connection with a common impression cylinder 4.
  • the pressure cylinder leading to the printing substrate 4 has two pressure gaps 11 on the circumference.
  • a plurality of such short inking units can be assigned to a common printing cylinder 4.
  • a short inking unit which has a squeegee device 7, ink supply 8 (as a color reservoir in the doctor device 7), anilox roller 6, inking roller 5 (with roller coating 28), and a plate / forme cylinder 1 with dampening unit 13 and a blanket cylinder 2.
  • the squeegee device 7 has an upwardly open ink chamber as a paint reservoir, which is in operative connection with a first squeegee blade 7a with the adjacent anilox roller 6.
  • the inking roller 5 is associated with a subtraction system 18, which is formed from a relatively soft surface in contact with the inking roller 5 and a roll having a relatively hard surface in contact with this roller.
  • the subtraction system 18 removes excess ink from the inking roller 5 and conveys it back into the doctor device 7 or the ink reservoir (ink supply 8).
  • the subtraction system 18 is used at the same time the evaporation of back-splitting dampening solution by means of the rollers generated frictional heat.
  • a short inking unit which has a doctor device 7 (chamber doctor blade with squeegee blades 7a, 7b), ink supply 8, anilox roller 6, inking roller 5 (with compressible layer 16), and a plate / forme cylinder 1 with dampening unit 13 and a blanket cylinder 2.
  • the anilox roller 6 is in the direction of rotation after the contact point of anilox roller 6 and inking roller 5 at a distance a first means 19 for generating an air flow, for example, at least a fan or a blower tube with nozzles for the Blas Kunststoffaustritt, arranged on the surface of the anilox roller 6.
  • This device 19 preferably extends over the full width of the roll and supports with the use of a dampening unit 13, the reduction of dampening solution on the anilox roller 6. Furthermore, the anilox roller 6 can be assigned an on / off adjustable roller group 20, which evaporates back by means of frictional heat dampening.
  • the inking roller 5 may preferably its own means 19 for generating an air flow, for example, at least one fan or a blowpipe with nozzles for the Blas Kunststoffaustritt be assigned to the roll surface 29 directed.
  • This device 19 preferably extends over the full width of the roll and supports the reduction of dampening solution on the roller surface leading to the medium 29.
  • the device 19 may be zonal controlled, so that the dampening solution guide zonally influenced.
  • the dampening unit 13 may be a switchable roller 24; 24 ', which is in contact with the dampening roller and the inking roller 5 if necessary (position 24') or exclusively with the inking roller 5 in contact (position 24).
  • the switchable roller 24, 24 ' is assigned a spraying device 25.
  • the roller 24 is wetted by cleaning fluid and in contact with the inking roller 5 whose roller surface 29 is cleaned.
  • the anilox roller 6 is associated with a spraying device 25 for cleaning the surface.
  • Fig. 5 is the short inking unit analogous to Fig. 4 educated.
  • a smoothing device 27 for leveling the remaining after a color splitting on the top layer 17 irregular surface topography of the inking roller 5 assigned.
  • Each smoothing device 27 extends over the full width of the roll and is in the direction of rotation of the inking roller 5 at the roll surface 29 tangentially, preferably acted upon by a force, employed.
  • the smoothing device 27 has no squeegee function but levels the irregular surface topography to a substantially uniform ink layer thickness on the roll surface 29.
  • the smoothing device 27 can be driven axially changeable.
  • such a smoothing device 27 of the anilox roller 6 in the direction of rotation of this according to the contact point of anilox roller 6 and inking roller 5 be assigned to be adjustable.
  • the anilox roller 6 and / or the inking roller 5 is associated with a device 19 for generating an air flow to the respective surface.
  • Fig. 9 are the inking roller 5 a first and a second metering system 6,7, 8, each comprising an anilox roller 6, a squeegee device 7 and a paint supply 8, stationarily assigned.
  • one of the metering systems 6, 7, 8 can be used by optionally selecting one of the metering systems 6, 7, 8 for ink transfer by means of the anilox roller 6 to the inking roller 5 and that the other of the metering systems 6, 7, 8 for interruption the ink transfer by means of the anilox roller 6 of the inking roller 5 is turned off or abun. (and vice versa).
  • a transfer roller is used, the on / off of the anilox roller 6 takes place on the transfer roller. This allows a fast color change can be realized.
  • each anilox roller 6 can be coupled separately with one individual drive 9 each.
  • a single, ie common single drive 9 for driving each anilox roller 6 can be coupled to both anilox rollers 6 and can optionally feed a moment to the anilox roller 6 to be driven.
  • the / the individual drives 9 are coupled to the machine control 10 circuit and data technology.
  • Fig. 10 is the inking roller 5, at least one anilox roller 6 and a squeegee device 7 (with or without ink supply 8) comprehensive dosing Assigned 6, 7, 8 and this dosing system 6, 7, 8 is arranged as an assembly location variable.
  • the dosing system 6, 7, 8 be accommodated in side walls and is moved or pivoted or removed as a complete assembly and can be replaced with a second dosing system 6, 7, 8.
  • at least one anilox roller 6 and a squeegee device 7 of the dosing system 6, 7, 8 against another, with the inking roller 5 operatively engageable (on / Ab monoes) dosing system 6, 7, 8 be interchangeable.
  • the anilox roller 6 and the squeegee device 7 can be configured to be variable in position in order to carry out cleaning operations outside the printing operation.
  • a second screen roller 6 and a second squeegee device 7 or a complete second module with the inking roller 5 are brought into operative connection to realize the printing operation.
  • the first anilox roller 6 and the first doctor device 7 or the first complete module can be cleaned or converted.
  • the anilox rollers 6 of the metering systems 6, 7, 8 may have different pumping volumes of the wells, cells, grooves.
  • the processing machine is not limited to the existence of such a short inking unit. Rather, the processing machine may comprise at least one further, preferably identical short inking unit. In this case, the metering systems 6, 7, 8 may be the same or deviating from each other.
  • An anilox roller 6 of the first short inking unit may have an anilox roller 6 of a second short inking unit different from each other Schöpfvolumina the wells.
  • the surfaces of the inking rollers 5 may have the same or different surface roughnesses with each other and with the surfaces of the blankets on the blanket cylinders 2. This additionally influences the color flow, the color density and / or the color quantity.
  • the roller surface 29 of the inking roller 5 may have a greater roughness than the surface of the blanket on the blanket cylinder 2.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (26)

  1. Machine d'impression comportant une unité d'encrage courte dotée d'un cylindre tramé (6), d'un dispositif de raclage associé (7, 7a, 7b) et d'un rouleau applicateur d'encre (5) en aval du cylindre tramé (6), le rouleau applicateur d'encre (5) étant en interaction avec un cylindre porte-plaque/cliché (1) directement installé en aval du cylindre tramé (6) et un cylindre porte-blanchet (2) étant installé en aval du cylindre porte-plaque/cliché (1),
    la surface de rouleau (29) du rouleau applicateur d'encre (5) présentant, relativement au diamètre extérieur actif du cylindre porte-plaque/cliché (1), un diamètre extérieur au moins égal,
    caractérisée en ce que
    le rouleau applicateur d'encre (5) présente un noyau (15) et qu'un revêtement de rouleau (28) présentant ou contenant au moins un matériau polymère est disposé concentriquement sur celui-ci
    le revêtement de rouleau (28) présentant, à proximité d'une surface de rouleau (29) guidant le fluide à transformer, une dureté Shore A supérieure et étant élastique et présentant, dans le sens radial en direction du noyau (15), une dureté Shore A inférieure et étant compressible.
  2. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le revêtement de rouleau (28) est disposé en adhérence fixe sur le noyau (15) ou en adhérence fixe sur un manchon pouvant être poussé sur le noyau (15) ou en être retiré dans le sens axial.
  3. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le revêtement de rouleau (28) présente une couche compressible inférieure (16) disposée en adhérence fixe sur le noyau (15) ayant une faible dureté Shore A et que, sur cette couche (16), une couche de recouvrement (17) élastique conduisant le fluide à transformer sur la surface du rouleau (29) et ayant une dureté Shore A supérieure à celle de la couche inférieure (16) est disposée.
  4. Machine d'impression selon la revendication 3,
    caractérisée en ce que
    la couche inférieure (16) est formée d'un matériau de type mousse alvéolée.
  5. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le revêtement de rouleau (28) - en partant de la surface de rouleau (26) conduisant le fluide à transformer, dans le sens radial en direction du noyau (15) - présente une diminution sensiblement continue de la dureté Shore A.
  6. Machine d'impression selon la revendication 1,
    caractérisée en ce que,
    en partant de la surface de rouleau (29) conduisant le fluide à transformer, dans le sens radial en direction du noyau (15), une couche périphérique (30) circonscrivant la surface de rouleau (29) est disposée, que la couche périphérique (30) présente une certaine épaisseur et une dureté Shore A uniformément élevée et qu'est ensuite disposé l'autre revêtement de rouleau (28) qui présente une diminution sensiblement continue de la dureté Shore A en direction du noyau (15).
  7. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    la surface de rouleau (29) du rouleau applicateur d'encre (5) présente - par rapport au cylindre porte-plaque/cliché (1) - un diamètre extérieur supérieur.
  8. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le cylindre tramé (9) présente - par rapport au cylindre porte-plaque/cliché (1) - un diamètre inférieur ou égal.
  9. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le cylindre tramé (6) présente un noyau (15) ayant un module d'élasticité axial élevé de 100 à 450 GPa.
  10. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le rouleau applicateur d'encre (5) présente un noyau (15) ayant un module d'élasticité axial élevé de 100 à 450 GPa.
  11. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    le cylindre porte-plaque (1) présente un noyau (15) ayant un module d'élasticité axial élevé de 100 à 450 GPa.
  12. Machine d'impression selon les revendications 1 et 9 ou 10 ou 11,
    caractérisée en ce que
    le noyau (15) comprend un matériau composite fibreux en carbone ou composite de métal et carbone.
  13. Machine d'impression selon les revendications 1 et 9 ou 10 ou 11,
    caractérisée en ce que
    le noyau (15) comprend un dispositif régulateur de température (23).
  14. Machine d'impression selon la revendication 13,
    caractérisée en ce que
    le dispositif régulateur de température (23) présente au moins un canal d'écoulement où peut passer du fluide régulateur de température.
  15. Machine d'impression selon la revendication 13,
    caractérisée en ce que
    le dispositif régulateur de température (23) présente au moins une cartouche de chauffage ou de refroidissement.
  16. Machine d'impression selon la revendication 12,
    caractérisée en ce que
    le noyau (15) présente une couche.intérieure (15a) disposée concentriquement par rapport à l'axe (14). et une couche extérieure (15c) disposée concentriquement à distance de la couche intérieure (15a) et que, entre la couche intérieure (15a) et la couche extérieure (15c), une couche intermédiaire (15b) reliée en adhérence fixe à ces couches (15a ; 15c) est disposée et qu'au moins une de ces couches (15a à 15c) est formée d'un matériau composite fibreux en carbone.
  17. Machine d'impression selon les revendications 13 et 16,
    caractérisée en ce que
    le dispositif régulateur de température (23) est disposé dans la couche intermédiaire (15b).
  18. Machine d'impression selon la revendication 1,
    caractérisée en ce que,
    en aval du point de contact du cylindre tramé (6) et du rouleau applicateur d'encre (5), dans le sens de rotation du cylindre tramé (6), un dispositif (19) de génération d'un flux d'air sur la surface du cylindre tramé (6) est à distance associé à celui-ci.
  19. Machine d'impression selon la revendication 1,
    caractérisée en ce que,
    en aval du point de contact du cylindre tramé (6) et du rouleau applicateur d'encre (5), dans le sens de rotation du cylindre tramé (6), un dispositif de lissage (27) permettant d'aplanir la topographie surfacique restant sur le cylindre tramé (6) lui est associé.
  20. Machine d'impression selon la revendication 1,
    caractérisée en ce que,
    en aval du point de contact du rouleau applicateur d'encre (5) et du cylindre porte-plaque/cliché (1), dans le sens de rotation du rouleau applicateur d'encre (5), un dispositif (19) de génération d'un flux d'air à distance sur la surface du rouleau applicateur d'encre (5) lui est associé.
  21. Machine d'impression selon la revendication 1,
    caractérisée en ce que,
    en aval du point de contact du rouleau applicateur d'encre (5) et du cylindre porte-plaque/cliché (1), dans le sens de rotation du rouleau applicateur d'encre (5), un dispositif de lissage (27) permettant d'aplanir la topographie surfacique restant sur le rouleau applicateur d'encre (5) lui est associé.
  22. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    sont associés au rouleau applicateur d'encre (5) un premier et un second systèmes de dosage (6, 7, 8) comprenant chacun un cylindre tramé (6), un dispositif de raclage (7) et une alimentation en encre (8),
    que, facultativement, un des systèmes de dosage (6, 7, 8) peut être approché, pour transférer l'encre au moyen du cylindre tramé (6), du rouleau applicateur d'encre (5) et que l'autre système de dosage (6, 7, 8), pour interrompre le transfert d'encre, peut être écarté du rouleau applicateur d'encre (5) pour interrompre le transfert d'encre au moyen du cylindre tramé (6).
  23. Machine d'impression selon la revendication 1,
    caractérisée en ce
    qu'est associé au rouleau applicateur d'encre (5) un système de dosage (6, 7, 8) comprenant au moins un cylindre tramé (6) et un dispositif de raclage (7) et que ce système de dosage (6, 7, 8) est disposé en tant que sous-ensemble à un emplacement variable.
  24. Machine d'impression selon la revendication 23,
    caractérisée en ce
    qu'un système de dosage (6, 7, 8) comprenant au moins un cylindre tramé (6) et un dispositif de raclage (7) peut être changé contre un autre système de dosage (6, 7, 8) pouvant être amené en interaction avec le rouleau applicateur d'encre (5).
  25. Machine d'impression selon la revendication 22,
    caractérisée en ce que
    les cylindres tramés (6) des systèmes de dosage (6, 7, 8) présentent des volumes de récupération de leurs aspérités différant entre eux.
  26. Machine d'impression selon la revendication 1,
    caractérisée en ce que
    la machine d'impression comprend au moins une autre unité d'encrage courte de même modèle et que l'au moins un cylindre tramé (6) de la première unité d'encrage courte présente des volumes de récupération de ses aspérités différant entre eux pour au moins un cylindre tramé (6) d'une seconde unité d'encrage courte.
EP07018331.4A 2006-10-11 2007-09-19 Mécanisme d'encrage court pour une machine de traitement Not-in-force EP1911586B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006048285 2006-10-11
DE102007041203A DE102007041203A1 (de) 2006-10-11 2007-08-31 Kurzfarbwerk für eine Verarbeitungsmaschine

Publications (3)

Publication Number Publication Date
EP1911586A2 EP1911586A2 (fr) 2008-04-16
EP1911586A3 EP1911586A3 (fr) 2011-01-19
EP1911586B1 true EP1911586B1 (fr) 2014-03-19

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Application Number Title Priority Date Filing Date
EP07018331.4A Not-in-force EP1911586B1 (fr) 2006-10-11 2007-09-19 Mécanisme d'encrage court pour une machine de traitement

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DE (1) DE102007041203A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007059335A1 (de) * 2007-12-07 2009-06-10 Manroland Ag Auftragsvorrichtung mit einem Formzylinder und wenigstens einer Auftragwalze in einer Verarbeitungsmaschine
DE102008011241B4 (de) * 2008-02-26 2015-06-11 manroland sheetfed GmbH Verarbeitungsmaschine mit einem Kurzfarbwerk
DE102008000862A1 (de) * 2008-03-27 2009-10-01 Manroland Ag Verfahren zum Entfeuchten von Komponenten eines Kurzfarbwerkes einer Druckmaschine und Einrichtung zur Verfahrensdurchführung
DE102008041909A1 (de) * 2008-09-09 2010-03-11 Manroland Ag Druckfluid-Auftrageinrichtung für eine Druckmaschine
DE102013204892B4 (de) * 2013-03-20 2017-04-27 Koenig & Bauer Ag Druckmaschine für Hohlkörper
DE102015222908A1 (de) * 2015-11-20 2017-06-08 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben einer Druckmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279295A2 (fr) * 1987-02-19 1988-08-24 Albert-Frankenthal AG Unité d'encrage

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Publication number Priority date Publication date Assignee Title
GB337250A (en) 1930-05-30 1930-10-30 Robert Wheatley Improved rubber-covered rollers and their construction
DE8224875U1 (fr) 1982-09-03 1987-01-08 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE3938449A1 (de) 1989-11-18 1991-05-23 Roland Man Druckmasch Druckwerk
US5415612A (en) * 1992-06-12 1995-05-16 American Roller Company Compressible roller
DE9310713U1 (de) * 1993-07-17 1993-09-02 Roland Man Druckmasch Farbauftragwalze
DE4408615C2 (de) 1994-03-15 1996-01-11 Roland Man Druckmasch Näpfchenwalze innerhalb eines Auftragswerks einer Rotationsdruckmaschine
DE4431464A1 (de) 1994-09-03 1996-03-07 Koenig & Bauer Albert Ag Kurzfarbwerk
DE19736339B4 (de) 1997-08-21 2004-03-18 Man Roland Druckmaschinen Ag Temperierung eines Druckwerkes und Temperiereinrichtung
DE10160734B4 (de) 2001-01-11 2012-06-21 Heidelberger Druckmaschinen Ag Druckmaschine
US20060070570A1 (en) * 2002-06-11 2006-04-06 Man Roland Druckmaschinen Ag Application device for a printing/painting unit in a processing machine
DE10337758A1 (de) * 2003-08-14 2005-03-10 Schaefer Kg Walze für Farb- oder Feuchtwerke von Offset-Druckmaschinen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279295A2 (fr) * 1987-02-19 1988-08-24 Albert-Frankenthal AG Unité d'encrage

Also Published As

Publication number Publication date
DE102007041203A1 (de) 2008-04-24
EP1911586A2 (fr) 2008-04-16
EP1911586A3 (fr) 2011-01-19

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