EP1968804A1 - Continuous-feed inking units of a printing machine, and a roller in this printing machine - Google Patents
Continuous-feed inking units of a printing machine, and a roller in this printing machineInfo
- Publication number
- EP1968804A1 EP1968804A1 EP06819652A EP06819652A EP1968804A1 EP 1968804 A1 EP1968804 A1 EP 1968804A1 EP 06819652 A EP06819652 A EP 06819652A EP 06819652 A EP06819652 A EP 06819652A EP 1968804 A1 EP1968804 A1 EP 1968804A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- film
- cavities
- inking unit
- lateral surface
- 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
Links
Classifications
-
- 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
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- 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
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- 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
Definitions
- the invention relates to film inking units of a printing press according to the preamble of claim 1 and 53 as well as a roller in this printing press according to the preamble of claim 55 and 56.
- a fluid roller with a hard surface is known, wherein on the outer surface of the cylindrical core a hard metal coating z. B. chrome z. B. is applied with a thickness of up to 0.5 mm, wherein in this coating by etching a random pattern of interconnected columns and intermediate, separate islands is formed, wherein the interconnected columns occupy up to 30% of the surface of the fluid roller, wherein the column has a depth z. B. up to 0.075 mm.
- This fluid roller cooperates for the transport of the fluid with another roller, this further roller has a soft lateral surface, wherein both rollers are employed against each other.
- a paint roller with a trained as a sleeve shell part of a microporous elastomeric material is known, wherein in the z. B. consisting of foam rubber casing part a plurality of cavities, wherein the cavities within a predetermined size range different Sizes, wherein the cavities are interconnected by channels, wherein the cavities and the channels each with a heat-sensitive, the passage cross-section of the cavities and channels as a function of the temperature-regulating envelope, for. B. are lined by a plastisol, so that ink does not touch the respective walls of the cavities and channels directly.
- the ink roller is impregnated with a relatively low viscosity ink having a viscosity of 2.5 Pa * s, the ink being stored in the cavities and channels of the shell portion and directed through the channels to the roll surface in the printing process, thereby providing a metered release of that stored in the shell portion Ink allows and in particular at a peripheral speed of at least 305 m / min, a throwing away of color spray mist is avoided.
- a transfer roller with an elastomeric cover layer having a hardness of 15 to 45 Shore A is known, these for better distribution z.
- a color to be transferred has a fine-pored, roughened surface, said surface may be produced by a grinding treatment.
- the transfer roller may have a surface with a fibrous structure.
- a fountain roller with a arranged around a metallic shaft around fine and open-pored surface layer is known, which at least on its outer side of a highly elastic material z.
- a layer of foamed rubber or polyvinyl chloride and around the metallic shaft around an inner layer of solid rubber or plastic may be provided.
- the open-pore outside of the fountain roller is covered with a thin, solid, coherent anti-adhesive film, so that there is a release layer to be transported dampening solution.
- From DE 199 34 395 A1 is an inking unit in a rotary offset printing machine in an inking roll known which one of a solid, rigid material, for. B. steel inner core and an outer layer, wherein the z. B. of an elastomer, in particular made of a rubber outer layer has a hardness in the range between 50 Shore A and 100 Shore A, wherein the particular hollow core of the inking roller z. B. has at least one cooling liquid channel to avoid overheating of the inking roller during the continuous printing operation.
- EP 1 251 404 A2 are each an image carrier, z.
- the elastomer layer As a roller, with a 1 mm thick elastomeric coating known, the elastomer layer to avoid a register accuracy reducing deformation slip cavities having a volume fraction in the range between 5% and 95%.
- GB-PS 729 561 a paint roller with a z.
- EP 0 367 193 B1 is a z.
- Example in an offset printing method multi-color printing machine known, which used for the ink transfer in each case a roller with formed on the elastomeric surface of hollow bodies with a diameter in the range of 5 microns to 300 microns, wherein at a low fluidity of the ink to be transferred either the number of hollow body increases or the size of the hollow body is increased.
- DE 101 12 756 A1 discloses a film inking unit with a film roller driven by a forme cylinder drive via a gear train, the peripheral surface speed of the film roller corresponding approximately to the peripheral surface speed of the forme cylinder in the printing operation.
- the ink ductor of the film inking unit is driven independently of the forme cylinder drive.
- a downstream in the color flow direction of the film roll transfer roller is driven by the film roller by friction.
- the film roll has a hard, metallic, or hard plastic peripheral surface profiled with a helical, multi-ply surface structure consisting of recesses (grooves) and protrusions (lands).
- EP 0 462 490 A1 discloses rollers arranged in a film dampening unit with a jacket surface made of an elastomer material.
- the invention has for its object to provide film inking units of a printing press and a roller in this printing press each with an improved conveying behavior.
- the achievable with the present invention consist in particular that a conveying behavior of the film inking unit compared to a conventional film inking plant is significantly improved by a transported by the rollers of the film inking unit in its rotation amount of ink is comparatively larger, since less ink excretes from the ink flow in the film inking unit and gets lost by spraying.
- the proposed roller sprayed with the formed on its lateral surface Cavities in their rotation less of the ink to be transported, so that the transport of the ink to be transported by a compactor is less lossy compared to a conventional roller.
- This advantageous effect is particularly noticeable in an arrangement of this roller in a printing machine, which produces at a production speed of 10 m / s, in particular 15 m / s or faster.
- By formed on the lateral surface of the proposed roller cavities an effective for the transport of ink conveying surface is increased, whereby an effective area for adhesion-based adhesiveness of the ink is increased on the lateral surface of the roller.
- FIG. 1 is a perspective view of a roller with a lateral surface made of an elastomer material.
- FIG. 2 shows a section of the lateral surface of the roller shown in FIG. 1;
- FIG. 3 shows a first embodiment of an inking unit with a roller according to FIG. 1;
- FIG. 5 shows a coupling according to FIG. 4 attached to the roller shown in FIG. 1;
- Fig. 6 is a cooled roll
- FIG. 13 shows a second variant of an inking unit with a roller according to FIG. 1;
- FIG. 14 shows a detail of the lateral surface of the film roller used in the inking unit of FIG. 13 with a diamond pattern.
- Fig. 1 shows a perspective view of a roller 01 with a lateral surface 02 made of an elastomeric material, wherein it is the elastomeric material is a naturally recovered or synthetically produced rubber or a plastic, for.
- the elastomeric material is a naturally recovered or synthetically produced rubber or a plastic, for.
- a polymer or a polyadduct in particular polyurethane, is.
- the elastomer material may be applied in the form of a coating 03 on a base body 04 of the roller 01.
- the elastomeric material may also have a viscoelastic behavior.
- the roller 01 proposed here is intended for use in a printing machine, in particular for use in a z. B. in an offset printing process printing rotary printing machine, z.
- the printing machine in particular an inking unit 1 1, preferably a film inking unit 1 1, and when printing in a conventional wet offset printing process with a fountain solution used in the printing process also a dampening unit 21 (FIG. 3)
- the inking unit 1 1 and / or the dampening unit 21 each consists of a preferably multiple rollers having compactor, wherein at least one of the rollers of the respective roller train is formed as an aforementioned roller 01 with a lateral surface 02 made of an elastomer material.
- a plurality of the rollers of the respective roller may be designed as a roller 01 with a lateral surface 02 made of an elastomer material.
- the rollers of the inking unit 1 1 transport from a paint reservoir 16, z. B. from a color box 16 or a color pan 16, ink 14 z. B. to a in the Printing press arranged printing cylinder 12, z. B.
- the rollers of the dampening 21 transport from a dampening solution fountain solution to the arranged in the printing press forme cylinder 12.
- the aforementioned roller 01 with a lateral surface 02 made of an elastomer material may, depending on their use in the printing machine z.
- Example as a scoop roll or as a film roll or as a transfer roller or as an applicator roll, said roller 01 by its rotation about its longitudinal axis of rotation 06 with its lateral surface 02 depending on their use in an inking unit 1 1 or in a dampening unit 21 printing ink 14 or dampening solution receives and preferably in the form of a thin, in particular a closed on the lateral surface 02 fluid film with a layer thickness z. B. of less than 500 microns on.
- the layer thickness of the fluid film is in particular less than 150 ⁇ m, preferably between 50 ⁇ m and 100 ⁇ m.
- the volume of printing ink or fountain solution transferred by the roller 01 in the compactor is in particular less than 150,000 mm 3 per m 2 of the lateral surface 02 of this roller 01, preferably the volume is in the range between 50,000 mm 3 and 100,000 mm 3 .
- the roller 01 with a lateral surface 02 made of an elastomer material may, for. B. also be arranged adjacent to a conventional film roll.
- it can also be driven by frictional force exerted by an adjacent body of revolution, ie, solely by force-locking and without the use of a form-locking drive element.
- the roller 01 has a length L z in its axial direction. B. in the range of 1 .000 mm to 2,600 mm, in particular in the range of 1 .400 mm to 2,400 mm, and an outer diameter D z. B. in the range of 50 mm to 300 mm, preferably between 80 mm and 250 mm.
- the coating 03 with the elastomer material applied to the base body 04 of the roller 01 can have a layer thickness S z. B. in the range of 1 mm to 15 mm, preferably between 5 mm and 10 mm.
- the elastomeric material has a hardness in the range between 25 and 60 Shore A, preferably in the range between 30 and 50 Shore A, these hardness details and their test methods are defined according to DIN 53505.
- Fig. 2 shows an enlarged perspective, essentially z.
- the coating 03 of the outer surface 02 of the roller 01 is made homogeneous, the location of the cut on the outer surface 02 of the roller 01 can be chosen arbitrarily, as long as the Section on the lateral surface 02 of the roller 01 is surrounded on all sides by the elastomer material. An area immediately adjacent to an end face of the roller 01 on the lateral surface 02 of the roller 01 is therefore less suitable for the location of the cutout.
- the section represents, in particular, a measuring sample or measuring surface representative of the lateral surface 02, on the basis of which the coating 03, consisting of the elastomer material, of the roller 01, by means of a three-dimensionally recording the topography of the measuring sample.
- the measurement method preferably performs a 3D surface analysis on the measurement sample and is able to determine the measurement result z. B. also graphically displayed on a display device of a computing unit.
- a suitable for 3D surface analysis measurement method is z. B. with the developed at the Chair of Manufacturing Technology of the University of Er Weg-Nuremberg (DE) topography analysis software WinSAM, which is a program in the form of a surface analysis module especially for an executed in the computing unit operating system such as Windows NT.
- the calculations performed by this program are for example: B. the following known in surface physics regulations: DIN 4762, DIN 4768, DIN 4771, DIN 4776, DIN EN ISO 4287. The detail shown enlarged in FIG.
- the measurement sample 2 forms the measurement sample to be subjected to 3D surface analysis and is therefore only apparently removed from the cylindrical outer surface 02 of the roller 01.
- it defines a measurement sample having a rectangular, preferably square, base surface with an edge length I, wherein the edge length l z. B. in the range between 1 mm and 10 mm, preferably between 4 mm and 6 mm.
- the roller 01 directed edge length I of the cut should be negligible, because the outer diameter D of the roller 01 z. B. far more than ten times, z. B. twenty-five times to thirty times greater than the directed in the circumferential direction of the roller 01 edge length I of the section.
- the magnification is z. B. with a factor of at least 10, preferably 100 or more.
- the examined with a measuring method, preferably rectangular cutout from the coating 03 has z. B.
- a radially to the axis of rotation 06 of the roller 01 directed depth t ⁇ of 1 mm or less, preferably between 100 microns and 500 microns.
- the depth t ⁇ of the cutout is therefore small in comparison to the layer thickness S of the elastomer material, since the depth t ⁇ of the cutout z. B. is significantly smaller than a tenth, z. B. less than a twenty-fifth of the layer thickness S of the elastomer material.
- a cylindrical surface, assigned to the surface 01 of the roller 01 is defined as a reference surface, said cylindrical surface defined as a reference surface being located where the outer diameter D having roller 01 is arranged on its circumference actually limiting cylindrical surface.
- the cylindrical surface actually bounding the roller 01 as a rotational body has a roughness with an absolute roughness depth R 1 z. B. in the range of 100 microns to 120 microns and with an average roughness R z z. B. in the range of 20 microns to 100 microns, preferably from 60 microns to 80 microns, these values z. B. with a perthometer, ie a stylus device, preferably in accordance with relevant standards, eg. B.
- DIN EN ISO 4287 can be determined.
- a calculated according to DIN 4776 from an Abbott curve smallest material content Mr1 (corresponding to a supporting portion of the tips) of the lateral surface 02 of the roller 01 is z. In the range between 7% and 13%, preferably between 9% and 1 1%.
- a according to DIN 4776 from the same Abbott curve determined largest material content Mr2 (corresponding to a supporting portion of the grooves) of the lateral surface 02 of the roller 01 is z. In the range between 80% and 95%, preferably between 85% and 90%.
- the lateral surface 02 in each arbitrarily selected section has a multiplicity of cavities 07 directed into the interior of the roller 01, at least on the lateral surface 02 Cavities 07 are irregular at least in their respective structure, but preferably also in their distribution on the lateral surface 02, d. H. at least there should be no uniform design of these cavities 07, preferably also no uniform distribution of these cavities 07. Rather, the cavities 07 dissect the lateral surface 02 in a stochastic manner.
- a depth t1 of these cavities 07 is variable in the region of the depth t ⁇ of the cutout and should be able to reach a maximum depth t ⁇ of the cutout.
- the depth t ⁇ of the measurement sample determined by the cutout is therefore always chosen to be greater in practice than the maximum occurring depth t1 of one of the cavities 07 present in the selected cutout.
- the depth t1 of the cavities 07 is z. B. up to 400 microns, preferably between 50 microns and 300 microns.
- flanks of the cavities 07 Due to their directed into the interior of the roller 01 flanks increase the cavities 07, the cylindrical surface, with an indication of the area increase z. B. on the smooth-walled imaginary cylindrical surface is covered.
- the flanks of the cavities 07 are formed to improve the adhesion for a transportable ink 14 or a dampening solution to be transported neither smooth-walled nor uniform or uniform.
- the flanks of the cavities 07 have, in particular, different pitch angles relative to the reference face, wherein the pitch angles in the range between 0 ° and 90 ° preferably have an irregular distribution.
- the lateral surface 02 which is enlarged by the surface of the flanks of the cavities 07, forms an effective surface of the roller 01, the effective surface of the roller 01 being the surface effective for transporting the printing ink 14 or dampening solution, ie the surface which is in contact with the printing ink 14 or the dampening solution is in touching contact, wherein this effective surface of the roller 01 in the preferred embodiment, in particular by the flanks of the cavities 07 is at least 20% larger than the intended as a smooth-walled cylindrical surface.
- the effective surface of the roller 01 is at least twice as large as the imaginary cylindrical surface of the roller 01 referred to.
- the effective surface of the roller 01 provides a quantity of ink 14 or fountain solution to be transported with the surface 02 of the roller 01 compared to the smooth-walled imaginary cylindrical surface larger conveying surface at which the ink to be transported 14 or the dampening solution to be transported can adhere by adhesion.
- the enlarged conveying surface thus forms an enlarged effective area for adhesion of the printing ink 14 or of the fountain solution to the lateral surface 02 of the roller 01.
- Each of the cavities 07 open on the lateral surface 02 forms a void with respect to the cylindrical reference surface, ie with respect to the closed and smooth-walled cylindrical surface, the void area corresponding to the opening cross-section of the respective cavity 07 in the plane of the reference surface.
- the sum of the empty surfaces of all cavities 07 present on the lateral surface 02 forms a vacant space fraction relative to the closed, imaginary cylindrical surface, the vacant space fraction being at most 35% of this cylindrical surface and preferably between 20% and 30%.
- the cavities 07 in the coating 03 form a void volume, the void volume of all cavities 07 present per m 2 of imaginary cylindrical surface being at least 50,000 mm 3 , preferably at least 100,000 mm 3 , in particular at least 150,000 mm 3 .
- this relief z. B. is tuned to the rheological behavior of the ink to be transported 14 or the dampening solution to be transported, in particular the viscosity and / or the tack of the transported Printing ink 14, so that the operations of filling and emptying of the cavities 07 with the ink to be transported 14 or the dampening solution to be transported and arresting the ink to be transported 14 or the dampening solution to be transported during their respective transport from one roller to the next depending on a for this roller 01 at the lateral surface 02 provided rotational speed are optimized, wherein the rotational speed of the roller 01 conditional production speed of this roller 01 in their inking unit 1 1 or in their dampening unit 21 having printing machine, in particular a used in newspaper printing or commercial printing rotary printing machine, z , B.
- the advantageous effect of introduced into the coating 03 of the roller 01 cavities 07 comes especially at a higher production speed of the printing machine to advantage, for. B. at a production rate from 10 m / s, in particular in the range between 15 m / s and 20 m / s.
- the vacant space portion and / or the void volume of the cavities 07 is adapted to the roller 07 provided for these cavities due to the production speed of the printing press rotational speed.
- the lateral surface 02 open-pore forming cavities 07 are preferably introduced by a forming a spatial structure process in the coating 03 of the roller 01.
- Such methods may in particular be a machining, z. Example, a cutting process with or without material degradation or a turning process or a milling process or a grinding process, but also a blasting process or a stamping process.
- the cavities 07 in the coating 03 of the roller 01 can also be produced by a primary shaping by z. B. in the coating 03 of the roller 01 at least on the lateral surface 02, first a filler is introduced, which then z. B. is removed thermally or chemically, so that remain after the removal of the filler on the lateral surface 02, the cavities 07.
- Due to the manufacturing method used may be at the Lateral surface 02 of the roller 01 in particular along z. B. spiral processing paths give a preferred direction for the arrangement of the cavities 07.
- the z. B. in the form of grooves or grooves recognizable preferred direction for the arrangement of the cavities 07 may starting from a directed onto the axis of rotation 06 of the roller 01 solder have an inclination angle in the range of + 45 ° to + 90 ° or -45 ° to -90 ° , At the two opposite edges of the roller 01, ie close to their end faces, the angle of inclination of the preferred direction for the arrangement of the cavities 07 may each be formed in opposite directions.
- the cavities 07 on the lateral surface 02 of the roller 01 are nevertheless in a stochastic, ie in a unsystematic, irregular, inconsistent, by chance arranged distribution.
- Fig. 3 shows schematically in a first embodiment, a to a printing cylinder 12, in particular an employed on a forme cylinder 12 inking unit 1 1, wherein the inking unit 1 1 in particular as a film inking unit 1 1 is formed.
- a dampening unit 21 is also provided.
- a Farbduktor 13 and, for example, the previously described, with a lateral surface 02 made of an elastomer material roller 01 in use as a film roller 01 are provided in the upper region of the film inking unit 1 1, a Farbduktor 13 and, for example, the previously described, with a lateral surface 02 made of an elastomer material roller 01 in use as a film roller 01 are provided.
- a film roller 01 is in the roller train of the inking unit 1 1 the ink fountain roller 13 following.
- the starting with the ink fountain roller 13 through the inking unit 1 1 to the forme cylinder 12 to be transported ink 14 is z. B. in an ink fountain 16 or in a paint tray 16 stocked.
- the ink fountain roller 13 has the task to supply the film inking unit 1 1 from this stocking continuously, evenly and without fluctuation with a quantity of ink adapted to the printing work.
- a distance between the ink knife and the ink fountain roller 13 is changed by an actuation of the adjusting element, a more or less strong color profile is produced on the outer surface of the ink fountain roller 13 as a function of the respectively set distance between the ink jet and the ink fountain roller 13.
- more or less ink 14 is passed or doctored between the ink fountain roller 13 and the ink blade.
- the film roller 01 is in constant direct physical contact with one of the film roller 01 in the roller train downstream ink roller 17 of the film inking unit 1 first
- An existing between the ink fountain roller 13 and the film roller 01 gap-like distance a which extends in the axial direction of the film roll 01, by a radial displacement of the film roll 01, ie by their variable arrangement of the film roll 01 in the film inking unit 1 1, in a range of z. B. 0 mm to 2 mm adjustable and preferably set to about 0.05 mm, wherein the distance a is fixed after its setting in the printing operation of the printing press.
- the entrained on the ink fountain roller 13 layer of ink 14, which exceeds a corresponding with the preset distance a of 0.05 mm radial height is permanently removed from the rotating film roll 01 and following in the roller train of the inking unit 1 1 rollers, in particular the Ink roller 17 transferred.
- the amount of ink absorbed by the ink fountain roller 13 from the ink reservoir 16 is thus continuously split in the ink layer and continuously transferred.
- At the end of the roller train of the inking unit 1 1 carry in this example two inking rollers 22 ink 14 on the forme cylinder 12 and at least one arranged on the forme cylinder 12 printing form.
- a plurality of printing plates are preferably arranged, for. B. in the axial direction up to six printing plates next to each other and / or in its circumferential direction z. B. two printing plates one behind the other, each printing form with its respective subject the printed image of z. B. prints exactly one newspaper page.
- z. B a material web, in particular a paper web, with a width of more than 1,000 mm, preferably of more than 1,400 mm, z. B. with a width between 1,400 mm and 2,400 mm, in particular for the production of a printed product with a high circulation or a larger page number, z.
- the rollers and cylinders have at least the width of the printing material corresponding, large axial length L. Rollers and cylinders each with a large axial length L of z. B. over 1 .400 mm, however, in particular at a high production speed, ie a transport speed of the printing material by the printing press of z.
- rollers and cylinders tend to oscillate with a large axial length L
- such rollers and cylinders usually have a relatively large mass which in printing operation in an acceleration or deceleration to form an undesirable slip with an adjacent roller or can lead with an adjacent cylinder.
- a slip formation is to be avoided, which is why such rolls and cylinders are controlled and defined, that is, to be rotated without slippage.
- a film roll 01 For a controlled, slip-free operation of such a film roll 01, it is proposed to form a film roll 01 with an axial length L of more than 1,000 mm, preferably more than 1,400 mm, in operative connection with a separate drive 18 or with a printing cylinder drive 19 ; the axial length L of this film roller 01 is preferably in the range between 1,400 mm and 2,400 mm.
- the outer diameter D of this film roll 01 is preferably in the range between 50 mm and 300 mm, in particular between 80 mm and 250 mm.
- the film roller 01 has, depending on the material used for their preparation a mass z. B. of more than 150 kg, sometimes even more than 200 kg.
- Such a film roller 01 is also usable in a 48 or more pages printing rotary printing machine, for.
- the film roller 01 has a z. B. designed as an electric motor 18 separate drive 18 or it is z. B. by means of a belt or a chain of a z. B. also driven as an electric motor 19 Drucktechnikszylinderantrieb 19 driven, wherein the printing cylinder actuator 19 can drive one or more cooperating printing cylinder 12, wherein the printing cylinder 12 z. B. is formed as a forme cylinder 12.
- the printing cylinder 12 is z. B.
- the film drive roller 01 driving the separate drive 18 or the associated with her printing unit cylinder drive 19 is preferably as a controlled, in particular as a position-controlled or as a torque-controlled electric motor 18; 19 trained.
- the film roller 01 is with its separate drive 18 or with the printing cylinder actuator 19 preferably via a torsionally flexible coupling 23 in functional connection, said coupling 23 in particular for compensation of major shaft displacements z.
- this coupling 23 acts vibration damping and noise-reducing and thus contributes to a high level of smoothness.
- FIG. 4 in a perspective view.
- Fig. 5 shows such a coupling 23 in a state attached to the film roll 01, the film roll 01 being arranged in a printing machine. As shown in FIG.
- one in a roller train of a film ink fountain 1 1 is the ink fountain roller 13 subsequently arranged film roller 01 of the ink fountain roller 13 in a variably adjustable gap-shaped distance a set.
- Both the separate drive 18 and the printing cylinder drive 19, with which the film roller 01 can each be in a functional connection, is arranged stationarily in the printing press. After their adjustment with respect to their distance a to the ink fountain roller 13, the film roller 01 in the film inking unit 1 1 is also arranged stationary.
- the respectively arranged between the film roller 01 and the separate drive 18 or the printing cylinder actuator 19 clutch 23 compensates for the change in the position with respect to the distance a to the ink fountain roller 13 position of the film roller 01 to the separate drive 18 or to the printing unit cylinder drive 19.
- the main body 04 of a roller 01 with a lateral surface 02 made of an elastomer material in particular a film roller 01 with a lateral surface 02 made of an elastomer material, z.
- a metal in particular a steel
- said roller 01 is cooled in particular when used in a producing at a higher production speed in the range of 15 m / s to 20 m / s rotary printing press.
- a plastic for , Example, a fiber composite material, preferably a CFRP material, ie a carbon fiber reinforced plastic, wherein in a base material of a plastic, ie a matrix, wherein the matrix z. B. consists of a thermoset, in particular of an epoxy resin, at least one mat of carbon fibers is embedded. In most cases, several layers of carbon fibers to reinforce the base material are embedded in the same.
- the fiber composites are z. B. made by winding.
- the density of a CFRP material is usually less than 20% of that of a steel, so that a roller 01 made of a CFRP material has a comparatively low mass.
- a roller 01 with a base body 04 made of a CFRP material can be due to the poor thermal conductivity of the CFRP material does not cool in the same way at least not with the same efficiency as a roller 01 with a base body 04 made of a heat-conducting steel.
- a roll 01 consisting of a CFRP material at least in a region close to its outer surface 02 consisting of an elastomer material with at least one thermal bridge incorporated into the main body 04 so that on the lateral surface 02 of the roller 01 in the production operation of the printing press resulting process heat is transferred to the interior of the roller 01 and there by a z. B. caused by a flowing fluid cooling from the roller 01 can be removed.
- Fig. 6 shows an example of a flowing fluid, for. B. a water-cooled roller 01, in particular film roller 01.
- cylindrical pin 26 On both sides of the roller 01 arranged cylindrical pin 26 are z. B. mounted in frame walls of the printing press at least rotatably.
- the pins 26 are each connected to a cylindrical support tube 28 frontally enclosing disc-shaped covers 27 of the roller 01.
- the pins 26 and the lid 27 are usually made of a metal, for. B. made of a steel.
- At least one of the layers arranged on the carrier tube 28 consists of a CFRP material.
- the support tube 28 may be made of metal, for. As a steel, or consist of a CFRP material.
- the main body 04 of the roller 01 has on the outside a coating 03 made of an elastomer material, wherein the layer thickness S having coating 03 (Fig. 1) which participates in the transport of a printing ink 14 or a fountain solution shell surface 02 of the roller 01, wherein the on the coating tube 28 arranged layer structure and the coating 03 may extend from the elastomer material over the entire axial length L of the roller 01 or only over a part of this length L.
- On at least one of the pin 26 of the roller 01 is preferably in the center z. B. through a bore 29, a supply of a cooling medium to the roller 01, z.
- the roller 01 along a line 31 z. B. initially flows through axially and then z. B. essentially via at least one preferably executed in one of the lid 27 radial bore 32 is introduced into the arranged on the support tube 28 layer structure, in order then via a further preferably in the other lid 27 executed radial bore 33 and formed on this cover 27 pin 26th to be derived from the roller 01 at an outlet opening 34.
- Feeder 29 and outlet opening 34 for the cooling medium can either at the same end face of the roller 01, z. B. on the operator side of the printing press, or be arranged on opposite end faces of the roller 01, wherein the supply 29 and the outlet opening 34 z. B.
- layer structure is preferably at least one of the cooling medium flowed through channel 36, wherein the at least one channel 36, the cylindrical support tube 28 z. B. spirals or arranged in the layer structure parallel to the axial length L of the roller 01.
- Embodiment variants of the layer structure arranged on the support tube 28 as well as preferably of a plurality of channels 36 arranged in the layer structure are shown in FIGS. 7 to 12 in each case in a longitudinal section and in an associated cross section.
- Fig. 7 shows a detail z. B. a film roll 01, wherein the layer structure of a plurality of layers 37; 38, wherein each one of the layers 37 of a CFK material and another layer 38 of a heat-conducting material are arranged alternately one another.
- Each of the layers 38 of the heat-conducting material is z. B. from a braid 38 made of a metal, for. As copper or an iron material, said braid 38 is incorporated continuously in the manufacturing process of the existing of a CFRP film roller 01. In the example shown in FIG.
- the film roller 01 is first a layer 38 made of the heat-conducting material and then coaxially a layer 37 of the CFRP material, whereupon another layer 38 coaxially emerges the heat-conducting material is arranged.
- the outer, consisting of the elastomer material coating 03 of the body 04 of the film roller 01 follow so coaxially one above the other alternately z.
- the layers 38 of the heat-conducting material in this way each form a thermal bridge between the existing of a CFRP material layers 37.
- FIG. 8 likewise shows, like FIG. 7, a detail of a film roller 01 in which the layer structure comprises a plurality of layers 37; 38, wherein each one of the layers 37 of a CFK material and another layer 38 of a heat-conducting material are arranged alternately one another.
- a substantially thicker layer 37 made of the CFRP material is provided, whereupon in the manner described above some layers 37; 38 of the heat-conducting material and CFK material coaxially one above the other to the outer, consisting of the elastomer material coating 03 of the body 04 of the film roller 01 follow.
- FIG. 9 shows a film roller 01 according to the embodiment variant according to FIG. 8, wherein at least one of the carrier tube 28 spirally encircling channel 36 is arranged for the flow of the cooling medium at least in one of the CFK material layers 37. Since the at least one channel 36 is arranged between two heat-conducting material consisting of layers 38, there is in this embodiment, a good cooling effect with respect to the of the lateral surface 02 of the Roller 01 dissipated process heat.
- Fig. 10 also shows a film roll 01 according to the embodiment of FIG. 8, wherein at least in one of the existing CFK material layers 37 in the form of a linear passage at least one of the layer structure of the film roll 01 axially passing through channel 36 for the flow of the Coolant is arranged.
- the at least one channel 36 is arranged between two layers 38 consisting of the heat-conducting material.
- Fig. 1 1 shows a film roll 01, which is similar to the embodiment of FIG. 8, but coaxially around the support tube 28 preferably only made of the CFK material layers 37 are arranged, at least in one of these layers 37 at least one the carrier tube 28 is arranged spirally encircling channel 36 for the flow of the cooling medium.
- the at least one spirally encircling channel 36 is arranged close to the lateral surface 02 of the roller 01 and preferably has a comparatively small diameter D36 and a small pitch s36 in order to minimize the stiffness of the film roller 01, which consists to a considerable extent of the CFRP material to impair and to obtain the most homogeneous possible cooling in the lateral surface 02 of the roller 01 near range.
- FIG. 12 shows a variant of the film roller 01 similar to FIG. 1, wherein at least one of the layers 37 consisting of the CFRP material, preferably in one of the layers 37 close to the surface 02 of the roller 01, has at least one layer structure of the film roller 01 axially flowing channel 36 is arranged for the flow of the cooling medium.
- at least one layer 38 of the heat-conducting material may be provided in the layer structure of the film roller 01.
- Fig. 13 shows again, ie in a second embodiment, an example Film inking unit 1 1, which is substantially similar to that shown in FIG. However, in this example follows the ink fountain roller 13 in the compactor a film roller 01, which has a jacket surface 08 made of ceramic, copper or a hard plastic.
- the plastic of the lateral surface 08 of the film roller 01 is z.
- the lateral surface 08 of the film roller 01 may be formed as a coating applied to a roll core coating, said coating having a layer thickness z. B. in the range between 1 mm and 2 mm.
- the film roller 01 is in contact with the roller 17 downstream of it in the roller train.
- the film roll 01 and the roller 17 downstream of it in the roller train with a contact force against each other employed, wherein the contact pressure in the form of a in the axial direction of the juxtaposed rollers 01; 17 may be up to 2,000 N / m, preferably between 200 N / m and 750 N / m.
- rollers 01; 17 Due to the mutual contact between these two mutually employed rollers 01; 17 a flattened relative to a circumferential circle, in the axial direction of the juxtaposed rollers 01; 17 extending contact surface formed, which is also referred to as a roller strip, wherein the particular formed on the lateral surface 02 of the roller 17 with the elastomer material roller strip in the circumferential direction of this roller 17 have a width between 2 mm and 1 1 mm, preferably between 5 mm to 8 mm can.
- the lateral surface 08 of the film roller 01 has a regular structure formed by grooves 09, wherein the grooves 09 can have a depth in the range between 300 ⁇ m and 500 ⁇ m.
- the grooves 09 are preferably inclined by a pitch angle in the range between + 25 ° to + 40 ° or -25 ° to ⁇ 0 °, starting from a plane perpendicular to the axis of the film roller 01.
- the grooves 09 are preferably parallel, with adjacent grooves 09 at a distance in the range between 1 mm and 2.5 mm are arranged.
- intersecting grooves 09 wherein the intersecting grooves 09, the lateral surface 08 of the film roller 01 in a diamond pattern structure.
- Such a diamond pattern formed by grooves 09 on the lateral surface 08 of the film roller 01 is shown by way of example in FIG. 14 in the form of a detail.
- the ink fountain roller 13 has a lateral surface z.
- the ink fountain roller 13 has a lower surface speed than the film roller 01.
- the surface speeds of Farbduktor 13 and film roller 01 are in a ratio z. From 1: 3 to 1:10. It is preferably provided that the ink fountain roller 13 is independently and independently of the other rollers arranged in the roller train of the film inking unit 1 1 driven by a motor 18.
- the film roller 01 may also have a separate motor 18 or be drivingly coupled either to the drive 18 of the ink fountain roller 13 or to the drive 19 of the other rollers arranged in the roller train of the film inking unit 1 1. It can be provided that in the compactor of the film inking unit 1 1, a distribution cylinder 24 is arranged, which z. B. has its own drive 18 or z. B. from the drive 19 of the rest in the roller train of the film inking unit 1 1 arranged rollers is driven.
- the dot-dash lines emanating from the motor 18 are intended to indicate the previously described variants in the drive concept, namely that the ink fountain roller 13, the film roller 01 or the distribution cylinder 24 can each have a separate drive 18.
- the film roller 01 in the roller train downstream roller 17 is z. B. also with the distribution cylinder 24 in a touching contact. It is driven either by the film roller 01 or the friction cylinder 24 or by both rotationally by friction.
- the ink fountain roller 13 and / or the distribution cylinder 24 are z. B. flows through a temperature control.
- the ink fountain roller 13 and / or the roller 17 downstream of the film roller 01 in the roller train may have a roller core made of a CFRP material, which in particular with an axial length of the respective roller 01; 13 of 1, 000 mm and more leads to a significant weight reduction.
- the film roller 01 adjacent roller 17 has a lateral surface 02 made of an elastomeric material, wherein the elastomeric material in a stochastic distribution a variety of the lateral surface 02 open, directed into the interior of this roller 17 Having cavities 07, wherein in the transfer of the ink 14, the grooves 09 on the lateral surface 08 of the film roller 01 and cavities 07 of their adjacent roller 17 mesh or are brought to at least partial coverage.
- a printing press roller 01; 17; 22 with a lateral surface 02 made of an elastomer material transmits a fluid film applied to its lateral surface 02, wherein the elastomer material in a stochastic distribution has a large number open on the lateral surface 02, into the interior of this roller 01; 17; 22 directed cavities 07 has.
- a sum over the respective void volume of all existing on the lateral surface 02 cavities 07 is greater than one of the lateral surface 02 of this roller 01; 17; 22 transferred volume of the fluid.
- the cavities 07 present on the lateral surface 02 have flanks with surfaces in contact with the fluid film, wherein the fluid film with a layer thickness of less than 500 ⁇ m is that of the lateral surface 02 and the faces of the flanks Cavities 07 formed relief on the outer surface 02 and the surfaces of the flanks rests.
- the in the interior of the roller 01; 17; 22 directed cavities 07 are not completely filled with this ink 14 when transferring ink 14.
- B. torakelten lateral surface 02 of this roller 01; 17; 22 would be the case.
- a roller 01; 17; 22 with these features mentioned here for their transport of printing ink 14 carries in particular in combination with a roller 01, the lateral surface 08 is structured by grooves 09, these two rollers 01; 17; 22 are employed against each other, to help that, especially at a higher surface speed of at least 10 m / s, the tendency to squirt ink 14 is effectively reduced.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Printing Plates And Materials Therefor (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006000884 | 2006-01-04 | ||
DE102006015481A DE102006015481B4 (en) | 2006-01-04 | 2006-04-03 | Roller of a printing machine |
PCT/EP2006/068736 WO2007077053A1 (en) | 2006-01-04 | 2006-11-22 | Continuous-feed inking units of a printing machine, and a roller in this printing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1968804A1 true EP1968804A1 (en) | 2008-09-17 |
EP1968804B1 EP1968804B1 (en) | 2009-08-19 |
Family
ID=37728273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06819652A Not-in-force EP1968804B1 (en) | 2006-01-04 | 2006-11-22 | Continuous-feed inking units of a printing machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1968804B1 (en) |
CN (1) | CN101395008B (en) |
AT (1) | ATE439987T1 (en) |
DE (2) | DE102006015481B4 (en) |
WO (1) | WO2007077053A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017222094A1 (en) * | 2017-12-06 | 2019-06-06 | Koenig & Bauer Ag | Printing unit of a printing press and method for operating a printing unit of a printing press |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502007001203D1 (en) * | 2006-05-23 | 2009-09-10 | Koenig & Bauer Ag | COLOR WORKING OF A ROTARY PRINTING MACHINE WITH A FILM ROLLER |
DE102011078283B4 (en) | 2011-06-29 | 2015-01-22 | Koenig & Bauer Aktiengesellschaft | Rotary printing machine with a forme cylinder and an inking unit employed on this forme cylinder |
CH706793B8 (en) * | 2011-12-23 | 2015-07-31 | Security Printing Inst Of People S Bank Of China | Method and device for ink transfer and supply. |
CN102632740A (en) * | 2012-04-25 | 2012-08-15 | 深圳市嘉拓自动化技术有限公司 | Intaglio roller for coating battery material in intaglio printing device and manufacturing method thereof |
CN102698923A (en) * | 2012-06-29 | 2012-10-03 | 东莞市施乐威尔光电科技有限公司 | Wire drawing film coating machine |
DE102015104519A1 (en) | 2015-03-25 | 2016-09-29 | Océ Printing Systems GmbH & Co. KG | Roller with two elastic layers for transferring a printed image |
CN105563291B (en) * | 2015-12-16 | 2017-12-12 | 广东光泰激光科技有限公司 | A kind of processing method for improving ceramic anilox roller qualification rate |
DE102017114180A1 (en) * | 2017-06-27 | 2018-12-27 | Manroland Web Systems Gmbh | Centrifugal roller made of fiber composite material |
CN111775549B (en) * | 2020-06-30 | 2022-09-23 | 沈阳东阳聚氨酯有限公司 | Pouring type polyurethane elastomer rubber roller with good anti-skid property |
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GB729561A (en) * | 1952-05-19 | 1955-05-11 | Strachan & Henshaw Ltd | Improvements in or relating to inking rolls of rotary printing presses |
DE1135930B (en) * | 1960-04-28 | 1962-09-06 | Luise Beutel | Dampening roller |
US4195570A (en) * | 1976-05-26 | 1980-04-01 | Dayco Corporation | Non-misting inking roll, method of making same, and ink for use therewith |
CA1129247A (en) * | 1979-02-26 | 1982-08-10 | Edward P. Macconnell | Fluid roller |
US4537127A (en) * | 1984-09-12 | 1985-08-27 | Rockwell International Corporation | Black oxide lithographic ink metering roller |
EP0347456B1 (en) * | 1987-10-05 | 1993-10-20 | Kinyosha Co. Ltd. | Ink roller for printing press and production thereof |
JP2616901B2 (en) * | 1988-11-01 | 1997-06-04 | 株式会社 東京機械製作所 | Rotary printing press for multicolor printing |
FR2663588B1 (en) * | 1990-06-21 | 1992-10-09 | Marinoni Harris Sa | FILM WETTING SYSTEM FOR ROTARY OFFSET PRESS. |
DE4235586C2 (en) * | 1992-10-22 | 1998-08-20 | Boettcher Gmbh & Co Felix | Process for transferring liquid media from a pre-wash roller to a gravure cylinder and device for carrying out the process |
US6098540A (en) * | 1998-08-10 | 2000-08-08 | Heidelberger Druckmaschinen Ag | Apparatus and method for reducing mottling in printing presses |
DE10039279A1 (en) * | 1999-09-09 | 2001-03-15 | Heidelberger Druckmasch Ag | Roller for printers has non-metal structured surface and forms a slip or siphon roller |
DE20003767U1 (en) * | 2000-03-01 | 2000-04-27 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Inking unit for a printing press |
DE10112756B4 (en) * | 2000-04-26 | 2012-01-19 | Heidelberger Druckmaschinen Ag | Film inking unit in a printing machine and method for its cleaning |
DE10119074A1 (en) * | 2001-04-19 | 2002-11-14 | Boettcher Gmbh & Co Felix | Elastomeric image carrier with cavities |
-
2006
- 2006-04-03 DE DE102006015481A patent/DE102006015481B4/en not_active Expired - Fee Related
- 2006-11-22 CN CN200680050412.XA patent/CN101395008B/en not_active Expired - Fee Related
- 2006-11-22 AT AT06819652T patent/ATE439987T1/en not_active IP Right Cessation
- 2006-11-22 DE DE502006004621T patent/DE502006004621D1/en active Active
- 2006-11-22 WO PCT/EP2006/068736 patent/WO2007077053A1/en active Application Filing
- 2006-11-22 EP EP06819652A patent/EP1968804B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2007077053A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017222094A1 (en) * | 2017-12-06 | 2019-06-06 | Koenig & Bauer Ag | Printing unit of a printing press and method for operating a printing unit of a printing press |
Also Published As
Publication number | Publication date |
---|---|
DE102006015481A1 (en) | 2007-07-05 |
EP1968804B1 (en) | 2009-08-19 |
ATE439987T1 (en) | 2009-09-15 |
WO2007077053A1 (en) | 2007-07-12 |
CN101395008B (en) | 2011-08-10 |
DE102006015481B4 (en) | 2009-07-09 |
CN101395008A (en) | 2009-03-25 |
DE502006004621D1 (en) | 2009-10-01 |
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