EP1291176A2 - Machine à imprimer et procédé d'opération d'un dispositif d'encrage - Google Patents

Machine à imprimer et procédé d'opération d'un dispositif d'encrage Download PDF

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Publication number
EP1291176A2
EP1291176A2 EP02016226A EP02016226A EP1291176A2 EP 1291176 A2 EP1291176 A2 EP 1291176A2 EP 02016226 A EP02016226 A EP 02016226A EP 02016226 A EP02016226 A EP 02016226A EP 1291176 A2 EP1291176 A2 EP 1291176A2
Authority
EP
European Patent Office
Prior art keywords
roller
anilox
anilox roller
pressure medium
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02016226A
Other languages
German (de)
English (en)
Other versions
EP1291176B1 (fr
EP1291176A3 (fr
Inventor
Stephen Franklin
Martin John Callahan
Wolfgang Schönberger
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1291176A2 publication Critical patent/EP1291176A2/fr
Publication of EP1291176A3 publication Critical patent/EP1291176A3/fr
Application granted granted Critical
Publication of EP1291176B1 publication Critical patent/EP1291176B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/004Driving means for ink rollers

Definitions

  • the invention relates to a printing press with an inking unit, in particular Short inking unit, according to the preamble of claim 1 and a method for operating a Inking unit, according to the preamble of claim 6.
  • An acquaintance Printing machine comprises an inking unit, for example an anilox inking unit, which has a Anilox roller for metering one on a cooperating with the anilox roller Inking roller to be transferred printing medium, such as paint or varnish, includes.
  • the anilox roller has recesses on its periphery, for example single cups or lines, formed pattern.
  • the pressure medium is from the Anilox roller on a printing plate, such as plate cylinder, transferred and from this on a substrate. Due to the pattern of the anilox roller are the Solid areas of a print image applied to the substrate are not closed, but you can see the fine anilox structure, which is not desirable.
  • the pattern of the anilox roller is so fine training that it no longer perceived as disturbing by the eye of an observer becomes.
  • the transferable amount of color that is, the amount of color that can be transferred, increases Creation volume of the depressions in the anilox roller and thus the density of the the printed matter applied printed image. Consequently, the cleaning of designed Anilox roller very difficult.
  • a printing press with the features of claim 1 proposed. It has an anilox roller, such as an anilox roller, on its periphery has a pattern formed from recesses.
  • the wells are with a printing medium, such as liquid paint or paint, filled.
  • the anilox roller is in contact with another roller, such as a dye transfer roller the applied in the wells pressure medium is applied.
  • the Printing machine is characterized in that the anilox roller and the roller are drivingly coupled together so that after each revolution of the anilox roller that through the print medium on the roll in the form of print medium clusters pictured patterns opposite one at a previous revolution of Anilox roller on the roller imaged pattern such a small offset in Circumferential direction that the new pressure medium accumulations in the pressure medium-free or substantially pressure medium-free gap in each case adjacent Pressure medium residual accumulations can be positioned on the roller. That in the Wells located pressure medium is thus in between the anilox roller and transferred to the roller nip formed on the roller and forms on the roller Peripheral surface small pressure medium accumulations, which in the circumferential direction of the Roll a corresponding to the pattern of the wells constant distance from each other exhibit.
  • the size of the offset between the fresh print media buildup and the Pressure medium residual accumulation is dependent on the distance of the anilox roller provided wells to each other. For example, instructs the anilox roller Cup or line patterns on, for example, up to 50 on a centimeter Be provided lines.
  • the distance between two adjacent lines can be seen here Range from a few hundredths of a millimeter to a few tens of millimeters.
  • the anilox roll pattern is through Wells or lines are formed, of which one centimeter can be arranged over 100 can. It becomes clear that the offset must be extremely precise so that the new Media accumulations exactly in the pressure medium free or substantially pressure-medium-free gap of each adjacent pressure medium residual accumulations on the Roller to be set.
  • the anilox roller and the roller are coupled together via a single-stage or multi-stage drive gear.
  • the overall gear ratio "i" of the drive gear is selected and the diameter d R of the anilox roller and the diameter d W of the roller coordinated so that the peripheral speed difference is zero, so that the anilox roller and roll roll without slipping together, yet, after each revolution of the anilox roller, the pattern imaged on the roller has such a small offset in the circumferential direction that the new print medium clusters are placed in the virtually pressure medium-free gap of respectively adjacent print medium residual clumps on the roller.
  • the transmission ratio is 1: 1.999
  • the diameter d W of the roller is 200 mm
  • the diameter d R of the anilox roller is 100.05 mm.
  • the diameter d W of the roller is the same size as the diameter of a plate cylinder in contact with the roller.
  • the procedure provides that the anilox roller and the roller are rotated so that after each revolution of the Anilox roller that through the printing medium on the roller in the form of pressure medium clusters pictured patterns versus one in a previous revolution
  • the anilox roller and the roller imaged such a small offset in Circumferential direction that the new pressure medium accumulations in the pressure medium-free or substantially pressure medium-free gap in each case adjacent Pressure medium residual accumulations of the roller are positioned.
  • the offset can be both be realized in the direction of rotation of the rollers or against the direction of rotation of the rollers.
  • the printing machine 1 described below is generally applicable.
  • it is an offset printing press which is operated in wet offset or dry offset.
  • This for printing a Print image on a substrate for example a sheet or a web of paper, Cardboard, plastic or sheet metal
  • selected printing medium can be, for example, liquid or be pasty paint or varnish. The following is assumed to be here liquid color is.
  • FIG 1 shows a section of an embodiment of the printing machine 1, namely an inking unit 3, which is formed here by an anilox inking unit.
  • the inking unit 3 comprises an anilox roller 5, which is in contact with a roller 7 stands, that is, the anilox roller 5 and the roller 7 roll off each other.
  • the roller 7 is here formed by a an elastic jacket having inking roller with a plate cylinder, not shown in Figure 1 cooperates.
  • the diameter of the Roller 7 is preferably the same size as that of the plate cylinder, wherein in this Embodiment of the diameter of the anilox roller 5 is half as large as that of the roller 7th
  • the peripheral surface 9 of the anilox roller 5 are at an equal distance from each other arranged recesses 11 are provided, whereby a pattern is formed.
  • the Recesses 11 are formed here as wells, the cell geometry and the Cell distribution determine the cup volume of the anilox roller.
  • the depressions 11 can be filled with paint, wherein a doctor device, not shown in Figure 1, the Scrapers peripheral surface 9 of the anilox roller 5, ensures that the recess 11th be reproducibly filled with color and thus always a predetermined color volume is transferred to the roller 7.
  • the anilox roller 5 and the roller 7 are not shown in FIG Driven drive means, wherein between the anilox roller 5 and roller 7 is a small Circumferential speed difference is set, that is, there is a slip between the rollers 5, 7, which will be discussed in more detail below.
  • Setting a desired peripheral speed difference is preferably one not shown control means provided by means of which the drive means is controlled.
  • each adjacent color residual accumulations 17 is a colorless Gap 19.
  • the residual color accumulations 17 have a smaller one Color volume and a lower height than the color clusters 15 on, as by Color splitting each one part of the color clusters 15 delivered to the plate cylinder has been.
  • the rolling ratios of the anilox roller 5 and the roller 7 are selected so that Moving the gaps 19 on the anilox roller 5 in the region of the nip of the Anilox roller 5 the new color clusters 15 exactly in the gaps 19 between the color residual accumulations 17 are set or transferred to the roller 7. Thereby becomes on the peripheral surface 13 of the roller 7 a continuously colored ink film formed, whose thickness varies only slightly. Due to the continuous coloring can be printed on the substrate a closed solid surface, in which the Pattern on the anilox roller is not recognizable. So there are no additional rollers or other means for smearing or elimination of the color clusters 15 required, as used in known printing machines.
  • a completely pressure medium-free gap 19 between adjacent residual color clusters 17 is ultimately only after a first revolution of the roller. 7 After the gaps 19 have passed the nip, the previously colorless gaps are 19 provided with color clusters 15, so that a closed color film is formed, such as it in Figure 1 on the nip downstream part of the peripheral surface 13 of the Roller 7 is shown. Because with each revolution of the roller 7 parts of the color clusters 15 and the color residual accumulations 17 are transferred to the plate cylinder, Finally, only the thickness of the color film fluctuates.
  • FIG. 2 shows a section of a further embodiment of the printing press 1, namely the anilox roller 5 and the roller 7, which via a multi-stage drive gear 21st coupled together.
  • the drive gear 21 is part of the drive device for the rollers 5, 7.
  • the drive gear 21 comprises a first gear stage 23, a second Gear stage 25 and a third gear stage 27.
  • the drive gear 21 has a first Gear 29 and a second gear 31 which rotatably connected to a shaft 33 and a third gear 35 and a fourth gear 37 connected to a shaft 39 are rotatably connected.
  • the drive device 21 further comprises a fifth gear 41, which is rotatably connected to a bearing pin 43 of the anilox roller 5.
  • the first gear 29 and coupled to the roller 7 gear 75 form the first gear stage 23, the meshing with each other engaged gears 33, 35 form the second Gear stage 25 and the gears 39, 41, the third gear 27th
  • the Overall gear ratio of the drive gear 21 is selected so that - As described with reference to Figure 1 - the color clusters 15 in the gaps 19th be positioned between the color residual accumulations 17, wherein the Peripheral speeds of the anilox roller 5 and the roller 7 to each other preferably are the same or slightly different.
  • FIG. 2 also shows a diagrammatic representation of one of the anilox roller 5 Doctor device 45 indicated, which may be formed for example by a chamber doctor blade can.
  • the drive gear single-stage that is, there are only two gears provided, of which a first gear with the roller 7 and a second gear with the anilox roller 5 are coupled, which mesh with each other.
  • Figure 3 shows a cross section through an embodiment of the printing machine 1 in Area of the inking unit 3. It is here still one of a plate cylinder 47 formed Printing form 49 shown, which is in contact with the roller 7.
  • the roller 7 is with a Main drive 51 of the printing press 1 coupled.
  • the gear 55 is connected to the gear 53 and one with the Main drive 51 connected gear 57 meshing engaged.
  • the gears 53, 55 have the same speeds, so that the Roller 7 and the plate cylinder 47, which have the same diameter, slip-free unroll.
  • the anilox roller 5 is coupled to a separate motor 59, see FIG that a desired peripheral speed difference between the anilox roller 5 and the roller 7 can be made by influencing the engine control.
  • the embodiment of the drive device shown in Figure 3 has the advantage on that the peripheral speed difference for any pattern of Anilox roller 5 can be optimally adjusted.
  • the separate motor 59 can So an extremely small translation can be realized, so that the anilox roller 5 per Rotation in the circumferential direction, ie in or against its direction of rotation, relative to the Roller 7 has an offset, which is preferably a few 10ths of a millimeter or 100ths Millimeters.
  • FIG. 4 shows a section of a further embodiment of the printing press 1 in side view, in which the anilox roller 5 via gears with the not closer driven main drive of the printing press is driven.
  • the offset of the fresh Pressurized media builds up to the print media residual buildup is by Superposition gear 61 caused.
  • the superposition gear 61 is here of a Planet gear formed, the gear 63 with internal teeth, a ridge 65, on the three planet gears arranged in pairs 67 are rotatably mounted and a rotatably connected to the anilox roller 5 connected gear 69 includes.
  • the gear design is chosen here so that at conceivable stop of a motor 71 and consequently at resting ridge 65 the anilox roller would turn twice when the anilox roller 7 has gone through a revolution.
  • the web 65 is so by means of the motor 71 slowly twisted that the overall translation of the superposition gear 61 of the Cup and line structure of the respectively used anilox roller 5 accordingly is adjusted and that the coloring of the roller 7 is again such that the color clusters 15 is positioned in the gap 19 between the color residual clusters 17 become.
  • the motor 71 needs to rotate the web 65 very little power and can therefore be designed to be correspondingly small. Furthermore, a high accuracy for adjustment the peripheral speed difference between the anilox roller 5 and roller 7 easily adjustable, since the motor 71 is a large translation for its slow-running pinion 73rd has, whereby the resolution also multiplies.
  • Ausrhackungsform further has the advantage that in case of failure of the engine 71st can still be re-printed, if not more as desired, because then the peripheral speed difference between the anilox roller 5 and roller 7 is zero.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
  • Ink Jet (AREA)
  • Screen Printers (AREA)
  • Rotary Presses (AREA)
EP02016226A 2001-09-11 2002-07-19 Machine à imprimer et procédé d'opération d'un dispositif d'encrage Expired - Lifetime EP1291176B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10144563A DE10144563A1 (de) 2001-09-11 2001-09-11 Druckmaschine und Verfahren zum Betreiben eines Farbwerks
DE10144563 2001-09-11

Publications (3)

Publication Number Publication Date
EP1291176A2 true EP1291176A2 (fr) 2003-03-12
EP1291176A3 EP1291176A3 (fr) 2004-01-07
EP1291176B1 EP1291176B1 (fr) 2007-08-15

Family

ID=7698527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02016226A Expired - Lifetime EP1291176B1 (fr) 2001-09-11 2002-07-19 Machine à imprimer et procédé d'opération d'un dispositif d'encrage

Country Status (7)

Country Link
US (1) US6745689B2 (fr)
EP (1) EP1291176B1 (fr)
JP (1) JP2003094607A (fr)
CN (1) CN1330484C (fr)
AT (1) ATE369982T1 (fr)
CZ (1) CZ20022279A3 (fr)
DE (2) DE10144563A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005025742B4 (de) * 2004-07-07 2016-07-28 Heidelberger Druckmaschinen Ag Verfahren zum Steuern eines Kurzfarbwerks einer Druckmaschine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8423374B2 (en) * 2002-06-27 2013-04-16 Siebel Systems, Inc. Method and system for processing intelligence information
JP2006250202A (ja) * 2005-03-09 2006-09-21 Komori Corp ローラの回転駆動伝達装置
CN1853929B (zh) * 2005-04-29 2011-05-18 海德堡印刷机械股份公司 印刷机及其运行方法
DE102006015577B4 (de) * 2005-04-29 2014-06-05 Heidelberger Druckmaschinen Ag Druckmaschine und Verfahren zu deren Betrieb
DE102008062027B4 (de) * 2008-01-31 2018-05-17 Heidelberger Druckmaschinen Ag Druckmaschine mit einem Anilox-Farbwerk mit zugehöriger Wascheinrichtung
DE102011100284A1 (de) * 2010-05-27 2011-12-01 Heidelberger Druckmaschinen Ag Einrichtung zum Dosieren einer drucktechnischen Beschichtungsflüssigkeit auf einer Walze
DE102015222908A1 (de) 2015-11-20 2017-06-08 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben einer Druckmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431464A1 (de) 1994-09-03 1996-03-07 Koenig & Bauer Albert Ag Kurzfarbwerk

Family Cites Families (18)

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Publication number Priority date Publication date Assignee Title
US4000691A (en) * 1973-02-28 1977-01-04 Maschinenfabrik Augsburg-Nurnberg Ag Rotary printing press with improved inking system
DE3117341C2 (de) * 1981-05-02 1988-07-07 Albert-Frankenthal Ag, 6710 Frankenthal Farbwerk
US4445433A (en) * 1982-04-02 1984-05-01 Menashe Navi Method and apparatus for variable density inking
DE3220926A1 (de) * 1982-06-03 1983-12-08 Koenig & Bauer AG, 8700 Würzburg Rollenrotationsdruckmaschine
GB2146291B (en) 1983-09-14 1987-10-14 Grace W R & Co Rotary printing press
DE3922559C2 (de) * 1989-07-08 1994-03-24 Roland Man Druckmasch Offsetdruckwerk
JP3073768B2 (ja) * 1991-07-31 2000-08-07 日本写真印刷株式会社 薄膜形成装置
DE4211379C2 (de) * 1992-04-04 1999-01-07 Roland Man Druckmasch Anilox-Offset-Druckeinheit mit einem Kurzfarbwerk
DE4423286C2 (de) * 1994-07-02 1998-06-04 Heidelberger Druckmasch Ag Druckwerk für eine Rotationsoffsetdruckmaschine
EP0771267B1 (fr) * 1994-07-14 1998-04-15 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Systeme d'impression avec dispositif d'encrage court d'une rotative destinee a l'impression directe au moyen d'une plaque d'impression a plat "sans eau"
DE19611048A1 (de) * 1996-03-20 1997-09-25 Windmoeller & Hoelscher Druckmaschine, vorzugsweise Flexodruckmaschine
DE19739283C2 (de) * 1997-09-08 2002-10-24 Roland Man Druckmasch Verfahren zum Erreichen des Fortdruckzustandes in einer Rollenrotationsdruckmaschine
DE19840602A1 (de) * 1998-09-05 2000-03-09 Koenig & Bauer Ag Verfahren zur Beeinflussung der Übertragungsrate
DE19840613A1 (de) * 1998-09-05 2000-03-09 Koenig & Bauer Ag Kurzauftragwerk
DE19840603A1 (de) * 1998-09-05 2000-03-09 Koenig & Bauer Ag Übertragungssystem
DE29901697U1 (de) * 1999-02-01 2000-07-13 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Farbwerk in einer Druckmaschine
DE10000903A1 (de) * 1999-02-05 2000-08-10 Heidelberger Druckmasch Ag Verfahren zum Betrieb einer Druckmaschine und Druckmaschine zur Durchführung des Verfahrens
DE10143827A1 (de) * 2001-09-07 2003-03-27 Heidelberger Druckmasch Ag Verfahren zur Steuerung der Übertragung einer Mediummenge zwischen zwei Walzen

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE4431464A1 (de) 1994-09-03 1996-03-07 Koenig & Bauer Albert Ag Kurzfarbwerk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005025742B4 (de) * 2004-07-07 2016-07-28 Heidelberger Druckmaschinen Ag Verfahren zum Steuern eines Kurzfarbwerks einer Druckmaschine

Also Published As

Publication number Publication date
DE10144563A1 (de) 2003-03-27
US6745689B2 (en) 2004-06-08
CN1330484C (zh) 2007-08-08
DE50210683D1 (de) 2007-09-27
EP1291176B1 (fr) 2007-08-15
US20030047096A1 (en) 2003-03-13
EP1291176A3 (fr) 2004-01-07
HK1054530A1 (en) 2003-12-05
CN1406752A (zh) 2003-04-02
ATE369982T1 (de) 2007-09-15
CZ20022279A3 (cs) 2003-04-16
JP2003094607A (ja) 2003-04-03

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