EP1669210B1 - Unités d'impression d'une machine à imprimer - Google Patents

Unités d'impression d'une machine à imprimer Download PDF

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Publication number
EP1669210B1
EP1669210B1 EP20060110183 EP06110183A EP1669210B1 EP 1669210 B1 EP1669210 B1 EP 1669210B1 EP 20060110183 EP20060110183 EP 20060110183 EP 06110183 A EP06110183 A EP 06110183A EP 1669210 B1 EP1669210 B1 EP 1669210B1
Authority
EP
European Patent Office
Prior art keywords
printing unit
unit according
layer
cylinder
roller
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.)
Expired - Lifetime
Application number
EP20060110183
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German (de)
English (en)
Other versions
EP1669210A2 (fr
EP1669210A3 (fr
Inventor
Ralf Christel
Oliver Hahn
Karl Schaschek
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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
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Publication of EP1669210A3 publication Critical patent/EP1669210A3/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/085—Cylinders with means for preventing or damping vibrations or shocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
    • 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
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • 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
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/04—Blanket structure multi-layer
    • 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
    • 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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/02—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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/04—Intermediate 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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/10—Location or type of the layers in multi-layer blankets or like coverings characterised by inorganic compounds, e.g. pigments
    • 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
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component

Definitions

  • the invention relates to printing units of a printing press according to the preamble of claim 1 or 4.
  • a printing blanket which consists of several layers and in extreme cases has a total thickness of 0.55 to 3.65 mm.
  • the modulus of elasticity of cellular rubber sheets is between 0.2 and 50 MPa and between 0.1 and 25 MPa.
  • the special structure of the blanket and the properties of the layers a blanket is achieved, which, when pressed together, does not tend to lateral displacement or protuberance.
  • the DE 19 40 852 A1 discloses a printing blanket for offset printing which has a total thickness of approximately 1.9 mm.
  • a shear modulus as stress at 0.25 mm deformation is given at approximately 4.6, 1.9 and 8.23 kg / cm 2 in the case of a thickness of the printing blanket.
  • the goal here is to achieve a rapid recovery after a depression and a narrow thickness tolerance.
  • the CH 426 903 discloses an offset blanket, with conventional indentation depths of 0 to 0.1 mm.
  • An increase in the indentation from 0.05 to 0.1 mm requires or has a consequence in the surface pressure of about 20.6 N / cm 2 . That is, in this range for the indentation depth and surface pressures of up to about 40 N / cm 2 there would be a linearized "spring characteristic" with a slope of about 412 N / cm 2 / mm.
  • the WO 01/39974 A2 discloses printing units with two together in anstelllage acting cylinders, wherein a forme cylinder in the region of its lateral surface an opening of an axially extending channel for fixing an end of one or more printing plates and a cooperating with the forme cylinder in a contact zone transfer cylinder in the region of its lateral surface has an elastic blanket.
  • the post-published with respect to the first priority application EP 1 208 997 A1 discloses a printing blanket for offset printing applications, preferably for surface-structured and in particular deformation-endangered materials such as corrugated cardboard whose elastically compressible layer has such a dependence of the surface pressure on the indentation that a surface pressure of 1350 kPa has a depression of 0.45 to 0, 9 mm causes.
  • z. B. in the inking and / or dampening unit, and in particular in the offset process between printing cylinders, resorted to hard-soft regularly on the combination of materials.
  • the surface pressure required for the ink transfer is achieved by pressing a yielding, z. B. elastomeric layer (soft elastomeric cover / elevator, blanket, metal blanket, sleeve) on a cooperating roller with largely incompressible and non-elastic surface area achieved.
  • the contact force has changed permanently due to external conditions (long-wave interference)
  • long-wave interference there is a risk of becoming too pale or too pale color intensive printed product until the time of a correction (waste).
  • the contact force changes dynamically due to oscillations (short-wave interference), this manifests itself in the formation of visible stripes in the printed product.
  • the invention has for its object to provide printing units of a printing press.
  • the achievable with the present invention consist in particular that a lower sensitivity to changes or fluctuations in the contact force (surface pressure) is achieved, and thus a high quality of the printed product is easier to achieve and can be maintained.
  • the transfer of the fluid is influenced by the execution of the elevator and / or the arrangement of the rollers to each other considerably less by vibrations.
  • a spring characteristic, ie a slope in the dependence of the surface pressure of the indentation is at least in an advantageous range for the indentation in pressure-on position highest 700 (N / cm 2 ) / mm.
  • An advantageous range of relative indentation of the elevator in the operating state is z. Between 5% and 10%. In particular, however, depending on the nature of the two rollers acting together different areas for the relative indentation are preferred in order to achieve optimum results in terms of the required transition of the fluid with at the same time the smallest possible influence of fluctuations.
  • the surface pressure varies in pressure-on position in an advantageous embodiment highest in a range between 60 and 220 N / cm 2 , or different sub-ranges for fluids, eg. As printing inks, with greatly different rheological properties and / or different printing processes. Especially in these areas or partial areas, the curve should fulfill the condition on the slope.
  • a width of the contact zone formed by the pressing of the rollers in the Nipp has hitherto i. d. R. kept as small as possible.
  • a widened nip point brings a higher line force and thus a greater static deflection with it.
  • this disadvantage is overcompensated by the elevator according to the invention or the arrangement.
  • a width of the nip is at least 10 mm, in particular greater than or equal to 12 mm. This can be achieved a favorable surface pressure.
  • a vibration caused by a disturbance for. B. an interruption
  • the excitation of this vibration or its amplitude can be reduced.
  • a width of the interruption in the circumferential direction is at most in the ratio 1: 3 to the width of the nip (impression strip) resulting from the pressing.
  • the elevator or the layer allows the use of slimmer or even longer pressure cylinders, ie a length of the cylinders which is large in relation to the diameter.
  • a work machine, z. B. a printing press has rolling rollers 01 rolling against each other; 02, which in the region of their touch a nip 03, z. B. a nip 03, form.
  • the cylinder 01; 02 a forme cylinder 01 with a effective diameter D wPZ and a transfer cylinder 02 of an offset printing unit.
  • the transfer cylinder 02 has on the lateral surface of a substantially incompressible, non-elastic core 04 with a diameter D GZK an elevator 05 or coating 05 with a soft, elastomeric layer 06 of a thickness t.
  • a total thickness T of the elevator 05 is z. B. from the thickness t of the layer 06 and a thickness of an optionally associated with the layer 06 is substantially incompressible, inelastic carrier layer 10, for example, a metal plate, (by way of example in Fig. 8 shown) together. If the elevator 05 has no additional carrier layer 10, then the thickness t corresponds to the total thickness T.
  • the layer 06 can be constructed as an inhomogeneous layer 06 of multiple layers, which in total have the required property for the layer 06.
  • the effective diameter D wPZ is determined by the effective for rolling lateral surface of the forme cylinder 01 and optionally includes an applied on the lateral surface of a main body 07 elevator 08, z. B. a printing plate 08.
  • the cylinder 01 hard surface can also be designed as acting together with the transfer cylinder 02 impression cylinder 01.
  • the embodiment of the layer 06 set forth below is not dependent on the design of the rollers 01; 02 as a transfer and forme cylinder 01; 02 or bound to the execution with a printing plate 08.
  • Fig. 1 schematically a profile for a surface pressure P in the nip of the two rollers 01 and 02 is shown.
  • the surface pressure P extends over the entire area of the contact zone, wherein it reaches a maximum surface pressure P max at standstill at the level of a connecting plane V of the axes of rotation. This shifts in production to the incoming gap side due to the viscous force component.
  • the contact zone and thus the profile has a width B.
  • the maximum surface pressure P max is ultimately responsible for the color transfer and adjust accordingly.
  • Fig. 2 schematically the profile of the surface pressure P for the case of a larger indentation S, which simultaneously causes a broadening of the width B. If, nevertheless, the maximum surface pressure Pmax be achieved, the integration of the surface pressure P over the entire width B leads to an increase in a force between the two rollers 01; 02.
  • the absolute height of the surface pressure P in the nip 03 and their variation in the variation of the indentation S is largely determined by a spring characteristic of the layer 06 or the elevator 05 used with the layer 06.
  • the spring characteristic represents the surface pressure P as a function of the indentation S.
  • Fig. 3 By way of example, some spring characteristics of conventional elevators 05, in particular blankets 05 with a corresponding layer 06, are shown. The values are determined on a quasi-static stamp test bench in the laboratory. They are to be transferred in a suitable way to otherwise determined values.
  • a slope .DELTA.P / .DELTA.S of the spring characteristic determines the fluctuation in the surface pressure P when the depression S (for example, when oscillating) changes.
  • the magnitude of a fluctuation ⁇ P of the required maximum surface pressure P max in the nip 03 about the mean surface pressure P is approximately proportional to Slope .DELTA.P / .DELTA.S of the spring characteristics at the point S.
  • an elevator a
  • An elevator b has a lower pitch.
  • Lifts 05 which as a whole or whose layer 06 as such has a large pitch ⁇ P / ⁇ S, in particular in the range of the required maximum surface pressure P max in the pressure-relevant area, are referred to below as “hard”, those with a small pitch ⁇ P / ⁇ S referred to as “soft”.
  • the elevator 05 or the layer 06 is now executed as a "soft" elevator 05 or "soft” layer 06.
  • a "hard” elevator 05 or a hard layer 06 performs a same relative movements of the rollers 01; 02 (or change in the distance A) thus in a soft elevator 05 to a smaller change in the surface pressure P and thus to a reduction in the fluctuations in the color transfer.
  • the soft elevator 05 thus causes a lower sensitivity of the printing process to vibrations and / or deviations at intervals from a desired value. Due to smaller changes in the surface pressure P due to relative movements of the rollers 01; 02 are z. B. vibration strip in the printed product in soft elevators 05 or 05 with elevators with soft layer 06 visible only at higher vibration amplitudes.
  • the surface pressure varies in pressure-on position in an advantageous embodiment highest in a range between 60 and 220 N / cm 2 .
  • fluids e.g. As printing inks, with very different rheological properties, different areas within the above-mentioned area for the surface pressure may be preferred.
  • the slope should meet the condition on the slope.
  • the pressure-relevant area for the surface pressure P max is advantageously between 60 and 220 N / cm 2 .
  • fluids e.g. As printing inks, with very different rheological properties, different areas within the above-mentioned area for the surface pressure may be preferred.
  • the range for the wet offset z. B. between 60 and 120 N / cm 2 , in particular from 80 to 100 N / cm 2 (in Fig. 3 shaded), while in the case of dry offset z. B. between 100 and 220 N / cm 2 , in particular from 120 to 180 N / cm 2 varies.
  • a soft elevator 05 (or its layer 06) at least in the range of 80 to 100 N / cm 2, a slope .DELTA.P / .DELTA.S of z. B. ⁇ P / ⁇ S ⁇ 700 (N / cm 2 ) / mm, in particular ⁇ P / ⁇ S ⁇ 500 (N / cm 2 ) / mm.
  • the slope .DELTA.P / .DELTA.S should be smaller in the area concerned for the surface pressure P by at least a factor of two than is currently the case for elevators 05 in offset printing.
  • the layer 06 a greater strength t or the elevator 05 a greater total thickness T than usual on.
  • the thickness t of the functional layer 06 in terms of elasticity or compressibility amounts, for example, to 3.0 to 6.3 mm, in particular 3.7 to 5.7 mm.
  • the strength of one or more u. U. associated with the layer 06 substantially incompressible and inelastic layers on the core 04 side facing, which are connected to the layer 06 for the purpose of dimensional and / or dimensional stability (not shown).
  • This carrier layer 10 or carrier layers 10 which is functionally not functional for the "softness" of the elevator but rather for the dimensional stability, can also be arranged between the "soft" layers.
  • the specified thickness t of the layer 06 in the case of several layers of layers 06 refers to the sum of the "partial layers” functionally responsible for the above-described characteristic (dependence on surface pressure / indentation) and the elasticity or compressibility.
  • An elevator 05 then has, for example together with carrier layer (s) 10, the total thickness T of 3.5 to 6.5 mm, in particular 3.9 to 5.9 mm.
  • the "soft" elevator 05 (or layer 06) is preferably operated with a higher indentation S in comparison to conventional indentations S (shown schematically in FIG Fig. 2 compared to Fig. 1 shown), ie the two rollers 01; 02 are related to their respective effective but undisturbed diameter D wGZ , D wPZ further hired.
  • an optimal maximum surface pressure P max is achieved despite a smaller pitch .DELTA.P / .DELTA.S.
  • the employment of the rollers 01; 02 to each other takes place such that the indentation S to at least 0.18 mm, z. B. to 0.18 to 0.60 mm, in particular 0.25 to 0.50 mm, amounts.
  • the design and / or arrangement of the "soft" elevator 05 is particularly advantageous when one of the two co-operating rollers 01; 02 (or both) at least one interference affecting the unwinding 09; 11 has on its effective lateral surface.
  • This disorder 09; 11 can as a break 09; 11 an axially extending shock 09; 11 two ends of one or more elevators 05; 08 be.
  • This channel 09; 11 has an opening towards the lateral surface, through which the ends are guided.
  • the channel 09; 11 a device for clamping and / or tensioning the elevator 05; 08 or the elevators 05; 08 have.
  • width B09; B11 of the channel 09; 11 smaller than the width B of the contact zone.
  • at least always based areas of co-operating lateral surfaces in the contact zone from each other it also results in a reduction in the height and a flatter course (broadening of the pulse) for the force of the impact excitation.
  • Softer lifts 05 or softer layers 06 thus lead to narrow channels 09 11 to a weakening and a temporal extension of the channel impact.
  • ends of a metal blanket may be arranged in the channel 11.
  • the layer 06 is in this case on a dimensionally stable support, for. B. a thin metal plate (a plate), applied, the folded ends are arranged in the channel 11.
  • the channel 11 can then be extremely narrow in the circumferential direction, z. B. less than or equal to 5 mm, in particular less than or equal to 3 mm.
  • the channel 09 in an advantageous embodiment with a width in the circumferential direction is less than or equal to 5 mm, in particular less than or equal to 3 mm.
  • the permissible ratio B09: B or B11: B is an embodiment, wherein the width B09; B11 of the channel 09; 11 in the region of its opening or mouth to the lateral surface of the core 04 or main body 07 in the circumferential direction at most in the ratio 1: 3 to the resultant by the pressing width B of the contact zone (impression strip).
  • the soft layer 06 preferably has a reduced damping constant compared to commonly used materials, so that no higher flexing heat is generated in spite of the higher loading and unloading speeds occurring due to the higher indentation S during unrolling.
  • the layer 06 must be designed such that a sufficiently rapid recovery or springing takes place after passing through the nip 03 in the starting position, so that, for example, when in contact with a paint roller or another cylinder already present the output strength.
  • Double printing unit 12 executed printing unit 12 is shown.
  • the forme cylinder 01 associated transfer cylinder 02 of a first cylinder pair 01; 02 acts on a substrate 13, z. B. a web 13 with a likewise designed as a transfer cylinder 14 impression cylinder 14 together, which is also associated with a forme cylinder 16.
  • All four cylinders 01; 02; 14; 16 are mechanically driven independently of each other by means of different drive motors 17 ( Fig. 4 ).
  • forming and transfer cylinders 01; 02; 14; 16 in pairs coupled by a paired drive motor 17 (on the forme cylinder 01, 16, on the transfer cylinder 02, 14 or parallel) driven ( Fig. 5 ).
  • the form cylinder 01; 16 and the transfer cylinder 02; 14 are in a first embodiment as a cylinder 01; 02; 14; 16 double circumference, ie with a circumference of substantially two stationary printed pages, in particular of two newspaper pages executed. They are with effective diameters D wGZ ; D wPZ made between 260 to 400 mm, in particular 280 to 350 mm.
  • the transfer cylinder 02; 14 each have at least one elevator 05 a total thickness T of 3.5 to 6.5 mm, in particular from 3.9 to 5.9 mm.
  • the slope .DELTA.P / .DELTA.S of the spring characteristic is at least in the pressure-relevant area (see above) below 700 (Ncm 2 /) mm, in particular below 500 (Ncm 2 /) mm.
  • Shaping and transfer cylinder 01; 02; 14; 16 are set in pairs in such a way that the width B of the contact zone between the forming and transfer cylinders 01; 02; 14; 16 in Anstelllage 14 to 25 mm, in particular 17 to 21 mm. This configuration largely minimizes sensitivity to vibration and inexact positioning.
  • the individual drives by the drive motors 17 support this by the mechanical decoupling.
  • the forme cylinder 01; 16 and the transfer cylinder 02; 14 as a cylinder 01; 02; 14; 16 simple circumference, ie with a circumference of substantially a standing pressure side, especially from a newspaper page executed. They are with effective diameters D wGZ ; D wPZ running between 150 to 190 mm.
  • the transfer cylinder 02; 11 On the lateral surface of the core 04, the transfer cylinder 02; 11 each have at least one elevator 05 a total thickness T of 3.5 to 6.5 mm, in particular from 3.9 to 5.9 mm.
  • the slope .DELTA.P / .DELTA.S of the spring characteristic is at least in the pressure-relevant area (see above) again below 700 (Ncm 2 /) mm, in particular below 500 (Ncm 2 /) mm.
  • Shaping and transfer cylinder 01; 02; 14; 16 are set in pairs in such a way that the width B of the contact zone between the forming and transfer cylinders 01; 02; 14; 16 in Anstelllage 10 to 18 mm, in particular 12 to 15 mm.
  • the transfer cylinder 02; 14 each have at least one elevator 05 a total thickness T of 3.5 to 6.5 mm, in particular from 3.9 to 5.9 mm.
  • the slope .DELTA.P / .DELTA.S of the spring characteristic is at least in the pressure-relevant area (see above) again below 700 (Ncm 2 /) mm, in particular below 500 (Ncm 2 /) mm.
  • Shaping and transfer cylinder 01; 02; 14; 16 are set in pairs in such a way that the width B of the contact zone between the forming and transfer cylinders 01; 02; 14; 16 in Anstelllage 12 to 20 mm, in particular 15 to 19 mm.
  • a pressure unit 19 is shown, which is either part of a larger printing unit, such.
  • B. a five-cylinder, nine-cylinder or ten-cylinder printing unit is, or is operable as a three-cylinder printing unit 19.
  • the transfer cylinder 02 acts here with a cylinder leading to no ink 18, z.
  • B. a counter-pressure cylinder 18 such as in particular a satellite cylinder 18, together.
  • the "soft" lateral surface of the transfer cylinder 02 now interacts with the "hard” lateral surface of the forme cylinder 01 on one side, and with the "hard” lateral surface of the satellite cylinder 18 on the other side.
  • the or more satellite cylinder 18 has its own drive motor 17, while the pair of forming and transfer cylinder 01; 02 mechanically coupled by a common drive motor ( Fig. 6 ), or are mechanically driven independently of each other by a separate drive motor 17 ( Fig. 7 ).
  • Form cylinder 01, transfer cylinder 02 and satellite cylinder 18 are in a first embodiment of Fig. 6 or 7 as a cylinder 01; 02; 18 double circumference with effective diameters D wGZ ; D wPZ ; D wsz carried out between 260 to 400 mm, in particular 280 to 350 mm.
  • the transfer cylinder 02; 11 each have at least one elevator 05 a total thickness T of 3.5 to 6.5 mm, in particular from 3.9 to 5.9 mm.
  • the slope .DELTA.P / .DELTA.S of the spring characteristic is at least in the pressure-relevant area (see above) below 700 (Ncm 2 /) mm, in particular below 500 (Ncm 2 /) mm.
  • Shaping and transfer cylinder 01; 02 and transfer cylinder 02; and satellite cylinder 18 are each set in pairs in such a way that the width B of the contact zone in Anstelllage each 14 to 25 mm, in particular 17 to 21 mm.
  • cylinder 01, transfer cylinder 02 and satellite cylinder 18 as cylinder 01; 02; 18 simple circumference, ie with a circumference of substantially a standing pressure side, in particular from a newspaper page executed. They are with effective diameters D wGZ ; D wPZ ; D wsz carried out between 120 to 180 mm, in particular 130 to 170 mm.
  • the transfer cylinder 02; 11 each have at least one elevator 05 a total thickness T of 3.5 to 6.5 mm, in particular from 3.9 to 5.9 mm.
  • the slope .DELTA.P / .DELTA.S of the spring characteristic is at least in the pressure-relevant area (see above) again below 700 (Ncm 2 /) mm, in particular below 500 (Ncm 2 /) mm.
  • Shaping and transfer cylinder 01; 02 and transfer cylinder 02; and satellite cylinder 18 are each paired in such a position that the width B of the contact zone in Anstelllage each 10 to 18 mm, in particular 12 to 15 mm.
  • the aforementioned elevator 05 or the layer 06 is z. B. in a printing unit with one or more long, but slender cylinders 01; 02; 14; 16 arranged.
  • the forme cylinder 01; 16 and the transfer cylinder 02; 14 z. B. in the region of their bales each have a length which four or more widths of a printed page, z. B. a newspaper page, z. B. 1100 to 1,800 mm, in particular 1,500 to 1,700 mm corresponds.
  • the diameter D wGZ ; D wPZ at least of the forme cylinder 01; 16 is z. B. 145 to 190 mm, in particular 150 to 185 mm, which corresponds in scope substantially a length of a newspaper page ("single circumference").
  • the device is advantageous in which the ratio between the diameter and length of the cylinder 01, 02; 14; 16; 18 is less than or equal to 0.16, in particular less than 0.12, or even less than or equal to 0.08.
  • the diameter of at least the forme cylinder 01; 16 is in a variant z. B. at 260 to 340 mm, in particular 280 to 300 mm, and in another variant z. B. at 290 to 380 mm, in particular at 300 to 370 mm, which corresponds in scope substantially two lengths of a newspaper page ("double circumference").
  • a ratio of the diameter D wGZ ; D wPZ at least of the forme cylinder 01; 16 to its length here is 0.11 to 0.17, in particular 0.13 to 0.16.

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  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Printing Methods (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rotary Presses (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Actuator (AREA)
  • Press Drives And Press Lines (AREA)

Claims (37)

  1. Groupe d'impression d'une machine à imprimer comprenant au moins deux rouleaux (01 ; 02 ; 14 ; 16 ; 18) coopérant une fois en position de placage, l'un des rouleaux (01 ; 02 ; 14 ; 16 ; 18) étant réalisé sous forme de cylindre de transfert (02 ; 14), et le cylindre de transfert (02 ; 14) et l'autre rouleau (01 ; 16 ; 18) présentant, dans la zone de leur corps, chacun une longueur correspondant à quatre largeurs, ou plus, d'une page de journal, le cylindre de transfert (02 ; 14) présentant, dans la zone de sa surface d'enveloppe, une couche (06) élastique et/ou compressible, caractérisé en ce que le cylindre de transfert (02 ; 14) et l'autre rouleau (01 ; 16 ; 18), en position de placage, sont disposés, l'un par rapport à l'autre, de manière qu'une largeur (B), résultante suite à l'enfoncement (S) de la couche (06), d'une zone de contact entre les deux rouleaux (01 ; 02), perpendiculairement à un plan de liaison (V) de leurs axes de rotation dans l'intervalle entre rouleaux (03), soit d'au moins 10 mm, et que la zone de contact fasse au moins 5 % d'un diamètre (DwGZ) actif non perturbé du rouleau (02) muni de la couche (06), en ce que le rouleau (02 ; 14) présentant la couche (06) est disposé en coopérant en fonctionnement avec un matériau d'impression (13) réalisé sous forme de bande (13).
  2. Groupe d'impression selon la revendication 1, caractérisé en ce que la zone de contact présente au moins la largeur (B) de 12 mm.
  3. Groupe d'impression selon la revendication 1, caractérisé en ce que, au moins dans la zone d'un pressage de surface de 80 à 100 N/cm2, la couche (06) présente une pente ΔP/ΔS inférieure à 700 (N/cm2)/mm.
  4. Groupe d'impression d'une machine à imprimer comprenant au moins deux rouleaux (01 ; 02 ; 14 ; 16 ; 18) coopérant une fois en position de placage, l'un des rouleaux (01 ; 02 ; 14 ; 16 ; 18) étant réalisé sous forme de cylindre de transfert (02 ; 14), et le cylindre de transfert (02 ; 14) et l'autre rouleau (01 ; 16 ; 18) présentant, dans la zone de leur corps, chacun une longueur correspondant à quatre largeurs, ou plus, d'une page de journal, le cylindre de transfert (02 ; 14) présentant, dans la zone de sa surface d'enveloppe, une couche (06) élastique et/ou compressible, caractérisé en ce que le cylindre de transfert (02 ; 14) et l'autre rouleau (01 ; 16 ; 18), en position de placage, sont disposés, l'un par rapport à l'autre, de manière qu'un enfoncement (S) de la couche (06), par une surface d'enveloppe, sensiblement incompressible et non élastique, de l'autre rouleau (01 ; 16 ; 18), dans l'intervalle entre rouleaux (03), soit d'au moins 0,18 mm, en ce que le rouleau (02 ; 14) présentant la couche (06) est disposé en coopérant en fonctionnement avec un matériau d'impression (13) réalisé sous forme de bande (13).
  5. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que l'enfoncement (S) est de 0,25 à 0,50 mm.
  6. Groupe d'impression selon la revendication 4, caractérisé en ce qu'une zone de contact, résultant de l'enfoncement (S) de la couche (06), entre les deux rouleaux (01 ; 02), perpendiculairement à un plan de liaison (V) de leurs axes de rotation dans l'intervalle entre rouleaux (03), présente une largeur (B) de 10 mm.
  7. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que le rouleau (01 ; 16) coopérant avec le cylindre de transfert (02 ; 14) est réalisé sous forme de cylindre de forme (01 ; 16).
  8. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que le rouleau (18) coopérant avec le cylindre de transfert (02 ; 14) est réalisé sous forme de cylindre satellite (18).
  9. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce qu'au moins l'un des deux rouleaux (01 ; 02 ; 14 ; 16 ; 18) présente, sur sa surface d'enveloppe, au moins une perturbation (09 ; 11) influant sur le roulement.
  10. Groupe d'impression selon la revendication 9, caractérisé en ce que la perturbation (09 ; 11) est provoquée par un canal (09 ; 11), s'étendant axialement, pour la fixation d'extrémités d'un ou plusieurs habillages (05 ; 08).
  11. Groupe d'impression selon les revendications 6 et 10, caractérisé en ce qu'une largeur (B09 ; B11) du canal (09 ; 11) dans la zone de son ouverture vers la surface d'enveloppe, dans la direction périphérique, est au maximum dans un rapport de 1:3 par rapport à la largeur (B) de la zone de contact.
  12. Groupe d'impression selon la revendication 10, caractérisé en ce que la largeur (B09 ; B11) du canal (09 ; 11) dans la zone de son ouverture vers la surface d'enveloppe, dans la direction périphérique, est au maximum de 5 mm.
  13. Groupe d'impression selon la revendication 7, caractérisé en ce que des cylindres de forme et de transfert (01 ; 02 ; 14 ; 16) sont entraînés, de façon couplée mécaniquement, par un moteur d'entraînement (17) commun.
  14. Groupe d'impression selon la revendication 13, caractérisé en ce que des cylindres de forme et de transfert (01 ; 02 ; 14 ; 16) sont entraînés, en tant que paires de cylindres (01 ; 02 ; 14 ; 16), de façon mécaniquement indépendante, par une ou plusieurs paires de cylindres (01 ; 02 ; 14 ; 16) ou un cylindre satellite (18).
  15. Groupe d'impression selon la revendication 7, caractérisé en ce que des cylindres de forme et de transfert (01 ; 02 ; 14 ; 16) sont entraînés, chacun de façon mécaniquement indépendante les uns des autres, par un moteur d'entraînement (17) propre.
  16. Groupe d'impression selon la revendication 8 ou 14, caractérisé en ce que le cylindre satellite (18) présente un moteur d'entraînement (17) propre, mécaniquement indépendant d'autres cylindres (01 ; 02 ; 14 ; 16).
  17. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce qu'au moins l'un des cylindres de transfert (02 ; 14) est réalisé avec une circonférence de sensiblement deux pages d'impression verticales au format journal.
  18. Groupe d'impression selon la revendication 1 ou 17, caractérisé en ce que les rouleaux (01 ; 02 ; 14 ; 16 ; 18) présentent, dans la zone de leur corps, chacun une longueur correspondant à six largeurs d'une page d'impression au format journal.
  19. Groupe d'impression selon la revendication 7, caractérisé en ce qu'au moins le cylindre de forme (01 ; 16) est réalisé avec une circonférence de sensiblement une page d'impression verticale au format journal.
  20. Groupe d'impression selon la revendication 17 ou 19, caractérisé en ce que les rouleaux (01 ; 02 ; 14 ; 16 ; 18) présentent, dans la zone de leur corps, chacun une longueur correspondant à quatre largeurs d'une page d'impression au format journal.
  21. Groupe d'impression selon la revendication 7, caractérisé en ce qu'un rapport, entre diamètre efficace et longueur, au moins du cylindre de forme (01 ; 16) est inférieur ou égal à 0,16.
  22. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que le groupe d'impression est réalisé sous forme de groupe d'impression pour l'offset humide, et la dépendance, entre pressage de surface (P) et enfoncement (S), au moins dans la fourchette allant de 80 à 100 N/cm2, présente une pente (ΔP/ΔS) inférieure à 700 (N/cm2)/mm.
  23. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que le groupe d'impression est réalisé sous forme de groupe d'impression pour l'offset sec, et la dépendance, entre pressage de surface (P) et enfoncement (S), au moins dans la fourchette allant de 120 à 180 N/cm2, présente une pente (ΔP/ΔS) inférieure à 700 (N/cm2)/mm.
  24. Groupe d'impression selon la revendication 4, caractérisé en ce que les deux rouleaux (01 ; 02 ; 14 ; 16 ; 18), en position de placage, sont disposés, l'un par rapport à l'autre, de manière correspondant au groupe d'impression selon la revendication 1.
  25. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce qu'une largeur (B) d'une zone de contact, résultante suite à l'enfoncement (S) de la couche (06), entre les deux rouleaux (01 ; 02), observée perpendiculairement à un plan de liaison (V) de leurs axes de rotation dans l'intervalle entre rouleaux (03), est supérieure à une largeur (B09 ; B11) d'un canal (09 ; 11) du rouleau (01 ; 16) coopérant, dans la zone de son ouverture vers la surface d'enveloppe, dans la direction périphérique.
  26. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que la couche (06) est réalisée sous forme de couche (06) d'un habillage (05) désolidariable.
  27. Groupe d'impression selon la revendication 26, caractérisé en ce que l'habillage (05) est réalisé sous forme de blanchet métallique.
  28. Groupe d'impression selon la revendication 27, caractérisé en ce que le blanchet métallique est réalisé avec une couche support dimensionnellement stable, en métal, en particulier une tôle.
  29. Groupe d'impression selon la revendication 27, caractérisé en ce que l'habillage (05) est disposé, dans le groupe d'impression d'une machine à imprimer imprimant des pages d'impression au format journal, en particulier une machine d'impression de journeaux.
  30. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que la couche (06) présente une dépendance, entre pressage de surface (P) et enfoncement (S), dont la pente (ΔP/ΔS), au moins dans une zone de travail pour le pressage de surface de 100 N/cm2, est inférieure à 700 (N/cm2)/mm.
  31. Groupe d'impression selon la revendication 1 ou 4, caractérisé en ce que la couche (06) présente une dépendance, entre pressage de surface (P) et enfoncement (S), dont la pente (ΔP/ΔS), au moins dans une zone pour l'enfoncement de 0,22 à 0,38 mm, est inférieure à 700 (N/cm2)/mm.
  32. Groupe d'impression selon la revendication 30, caractérisé en ce que, en plus de la pente (ΔP/ΔS) citée, inférieure à 700 (N/cm2)/mm, dans le cas d'un pressage de surface de 100 N/cm2, la pente (ΔP/ΔS), en cas d'application de l'habillage en offset humide, c'est-à-dire en utilisant de l'encre et un agent humidifiant, au moins dans une plage de travail globale pour le pressage de surface de 80 à 100 N/cm2, est inférieure à 700 (N/cm2)/mm.
  33. Groupe d'impression selon la revendication 30, caractérisé en ce que, en plus de la pente (ΔP/ΔS) citée, inférieure à 700 (N/cm2)/mm, dans le cas d'un pressage de surface de 100 N/cm2, la pente (ΔP/ΔS), en cas d'application de l'habillage en offset sec, c'est-à-dire en utilisant uniquement une application d'encre et aucun agent humidifiant, au moins dans une plage de travail globale pour le pressage de surface de 120 à 180 N/cm2, est inférieure à 700 (N/cm2)/mm.
  34. Groupe d'impression selon la revendication 1, 4 ou 30, caractérisé en ce que la couche (06) présente une épaisseur (t) d'au moins 3,0 mm.
  35. Groupe d'impression selon la revendication 26, caractérisé en ce que l'habillage (05), outre la couche (06), présente une couche support (10), reliée rigidement à celle-ci, sensiblement dimensionnellement stable.
  36. Groupe d'impression selon la revendication 26 ou 35, caractérisé en ce que l'habillage (05) présente une épaisseur totale (T) d'au moins 3,5 mm.
  37. Groupe d'impression selon la revendication 4, caractérisé en ce que la zone de contact présente au moins la largeur (B) de 12 mm.
EP20060110183 2002-04-18 2003-04-09 Unités d'impression d'une machine à imprimer Expired - Lifetime EP1669210B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10217402 2002-04-18
DE2002137205 DE10237205B4 (de) 2002-04-18 2002-08-14 Aufzug auf einer Walze, Anordnungen der Walze zu einer zweiten Walze sowie Druckwerke einer Druckmaschine mit der Walze
EP03729822A EP1494873B1 (fr) 2002-04-18 2003-04-09 Habillage place sur un cylindre de transfer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP03729822A Division EP1494873B1 (fr) 2002-04-18 2003-04-09 Habillage place sur un cylindre de transfer

Publications (3)

Publication Number Publication Date
EP1669210A2 EP1669210A2 (fr) 2006-06-14
EP1669210A3 EP1669210A3 (fr) 2008-06-04
EP1669210B1 true EP1669210B1 (fr) 2009-01-07

Family

ID=29251772

Family Applications (4)

Application Number Title Priority Date Filing Date
EP03729822A Expired - Lifetime EP1494873B1 (fr) 2002-04-18 2003-04-09 Habillage place sur un cylindre de transfer
EP20060110191 Expired - Lifetime EP1669211B1 (fr) 2002-04-18 2003-04-09 Unité d'impression d'une machine à imprimer
EP20060110183 Expired - Lifetime EP1669210B1 (fr) 2002-04-18 2003-04-09 Unités d'impression d'une machine à imprimer
EP20060110188 Revoked EP1661698B1 (fr) 2002-04-18 2003-04-09 Unité d'impression d'une machine d'impression

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP03729822A Expired - Lifetime EP1494873B1 (fr) 2002-04-18 2003-04-09 Habillage place sur un cylindre de transfer
EP20060110191 Expired - Lifetime EP1669211B1 (fr) 2002-04-18 2003-04-09 Unité d'impression d'une machine à imprimer

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20060110188 Revoked EP1661698B1 (fr) 2002-04-18 2003-04-09 Unité d'impression d'une machine d'impression

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Country Link
US (2) US7194953B2 (fr)
EP (4) EP1494873B1 (fr)
JP (2) JP2005532188A (fr)
CN (2) CN100500451C (fr)
AT (4) ATE419975T1 (fr)
AU (1) AU2003240388A1 (fr)
DE (5) DE10237205B4 (fr)
ES (2) ES2315997T3 (fr)
RU (1) RU2289512C2 (fr)
WO (1) WO2003086774A2 (fr)

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Also Published As

Publication number Publication date
CN101367289A (zh) 2009-02-18
EP1661698A2 (fr) 2006-05-31
WO2003086774A3 (fr) 2004-04-08
JP2008213492A (ja) 2008-09-18
AU2003240388A1 (en) 2003-10-27
ES2317416T3 (es) 2009-04-16
EP1494873A2 (fr) 2005-01-12
US7571677B2 (en) 2009-08-11
WO2003086774A2 (fr) 2003-10-23
EP1669210A2 (fr) 2006-06-14
EP1669210A3 (fr) 2008-06-04
EP1669211B1 (fr) 2008-12-31
CN1812888A (zh) 2006-08-02
RU2289512C2 (ru) 2006-12-20
AU2003240388A8 (en) 2003-10-27
EP1669211A3 (fr) 2008-06-04
ATE468972T1 (de) 2010-06-15
EP1661698A3 (fr) 2008-06-04
EP1661698B1 (fr) 2010-05-26
ATE419128T1 (de) 2009-01-15
DE50311034D1 (de) 2009-02-12
EP1669211A2 (fr) 2006-06-14
DE50312751D1 (de) 2010-07-08
RU2004129321A (ru) 2005-05-20
CN100500451C (zh) 2009-06-17
CN101367289B (zh) 2011-08-10
DE50310976D1 (de) 2009-02-05
EP1494873B1 (fr) 2008-12-24
ATE418457T1 (de) 2009-01-15
US20070169648A1 (en) 2007-07-26
DE10237205B4 (de) 2009-02-12
JP2005532188A (ja) 2005-10-27
US20050166775A1 (en) 2005-08-04
ATE419975T1 (de) 2009-01-15
DE10237205A1 (de) 2003-11-13
DE50311073D1 (de) 2009-02-26
ES2315997T3 (es) 2009-04-01
WO2003086774B1 (fr) 2004-05-27
US7194953B2 (en) 2007-03-27

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