EP0564936B1 - Anilox-Offset-Druckeinheit mit einem Kurzfarbwerk - Google Patents
Anilox-Offset-Druckeinheit mit einem Kurzfarbwerk Download PDFInfo
- Publication number
- EP0564936B1 EP0564936B1 EP93105094A EP93105094A EP0564936B1 EP 0564936 B1 EP0564936 B1 EP 0564936B1 EP 93105094 A EP93105094 A EP 93105094A EP 93105094 A EP93105094 A EP 93105094A EP 0564936 B1 EP0564936 B1 EP 0564936B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing unit
- offset printing
- roller
- unit according
- anilox
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
- B41F31/304—Arrangements for inking roller bearings, forks or supports
- B41F31/305—Eccentric bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
- B41P2227/70—Forming the printing surface directly on the form cylinder
Definitions
- the invention relates to an anilox offset printing unit with a short inking unit, which has, between the side walls, a doctor blade that can be dipped, immersed in an ink pan, an inking roller and a plate cylinder that inked a blanket cylinder, the plate cylinder interacting with a dampening unit.
- Anilox offset short inking units of the generic type do not have zone screws, but instead have a built-in, scrapable anilox roller, so that the amount of ink to be transferred can no longer be influenced directly.
- the amount of ink to be transferred depends primarily on the type of screen of the anilox roller and on the physical properties of the ink used.
- the impression width from the inking roller to the anilox roller also determines the ink transfer, so that ink metering can be influenced by the width of the contact zones of the rollers.
- the width of the impression from the inking roller to the plate cylinder also influences the emulsification behavior of the ink. The larger the width of the imprint, the greater the constraining forces, the more dampening solution is emulsified into the ink and the greater the need for dampening solution to be able to print sound-free.
- the rise in temperature in the machine also results in an increase in the color temperature, which causes the physical Change color properties.
- the tendency to emulsify increases, which is why the mechanical influencing variables of the emulsion formation, that is to say, above all, the constraining forces in the nip between the inking roller and the plate cylinder must be kept small.
- the printing unit shown schematically in Fig. 1 comprises a short inking unit with an anilox roller 1, against which an ink pan 2 with a doctor unit 3 can be set and an inking roller 4.
- the ink removed from the ink fountain 2 with the anilox roller 1 is first applied to the inking roller 4 and transferred from this to a plate cylinder 5, the anilox roller 1 being doctored off by means of the doctor unit 3.
- a dampening roller 6 of a dampening unit 7 is employed on the plate cylinder 5, a dampening roller 6 of a dampening unit 7 is employed.
- the plate cylinder 5 transfers the ink to a blanket cylinder 8 which is in contact with another cylinder 9.
- the cylinder 9 is either an impression cylinder or the blanket cylinder of another inking unit.
- the amount of ink transferred during the ink transfer from one roller 1 to another roller 4 or to the plate cylinder 5 essentially depends on the impression width b2 of the rollers 1 and 4 in contact.
- the impression width b1 between roller 4 and plate cylinder 5, on the other hand, has a significant influence on the amount of dampening solution emulsified into the ink, which is split back into the inking unit.
- Fig. 2 shows an embodiment of an adjusting device for changing the spacing of the inking roller 4 with respect to the axes of the anilox roller 1 and the plate cylinder 5.
- the inking roller 4 is rotatably mounted on both sides by means of two eccentric bushes 10 and 13 in the side walls about an axis 12.
- the inner eccentric bushing 10 is rotatably mounted in an outer eccentric bushing 13 via the surface 10a.
- the inner eccentric bushing 10 has a clamping ring 11 on the side, which has a shoulder 14 which is connected to a threaded part 15 by means of a motor-driven part adjustable, fixed to the side wall stop 16 cooperates and carries a second projection 17 which is articulated with a piston 18 of a rotatably mounted on / off cylinder 19.
- the outer eccentric bushing 13 is connected to an adjustment device 22 by means of an extension 20 via an articulated pull rod 21.
- the pull rod 21 can be moved back and forth in a known manner by means of a threaded part 23 and a worm wheel in an advantageous manner (FIG. 3).
- the stop 16 for the inner eccentric bushing 10 and the adjusting device 22 for the outer eccentric bushing 13 enable a finely tuned change in the impression widths b1, b2 of the inking roller 4 to the anilox roller 1 and / or to the plate cylinder 5.
- the gear element 15 of the stop 16 is designed as a bolt which interacts in a known manner with an adjusting spindle 24 (FIG. 3), so that the adjustable stop 16 can pivot the inner eccentric bush 10 to a small extent.
- the on / off cylinder 19 presses the inner eccentric bush 10 against the stop 16, on the other hand the stop 16, since it can exert a greater force than the adjusting cylinder 19 by means of its adjustable gear element 15, can pivot the inner eccentric bush 10 against the adjusting cylinder 19. This ensures that the inking roller 4 is always firmly seated in its storage.
- Both the adjusting device 22 and the stop 16 are connected to a circuit arrangement, as shown in FIG. 3.
- the Circuit arrangement generally has a transducer 25 and a setpoint generator 26, both of which are connected to a comparison element 27.
- a transmission element 28 with an adjustable timing so that the timing of the regulating device can be adapted to the timing of the controlled system, and a signal amplifier 29, the circuit arrangement is in each case with a stepper motor 30 of the stop 16 of the inner eccentric bush 10 and a stepper motor 31 of the adjusting element 22 the outer eccentric bush 13 connected. Both stepper motors 30, 31 are each provided with a presetting wheel 32, 33.
- the transducer 25 is coupled to a measuring element 34.
- the invention therefore achieves the object by regulating the impression widths b1 and b2.
- a basic setting which can also be changed by the printer during printing
- the print widths are automatically readjusted in the sense of keeping the print results constant based on this basic setting.
- the measurement variables that can be used for the control are, on the one hand, the color density, and, on the other hand, the parameters that detect, cause or correlate changes in the print width. These parameters are the line forces or bearing forces associated with the impression widths that are difficult to measure "on line" and, above all, the temperatures in the roller bodies and side walls causing the changes.
- the measuring element 34 can thus be a densitometer that measures the ink density either on-line or off-line, or a strain gauge that measures the bearing force of the employed inking roller 4, or scanning wheels that scan the cylinder diameter of the inking roller 4 on-line.
- the preferred embodiment of the measuring element 34 for the exemplary embodiment since the cheapest, is a thermo-sensitive element.
- the temperature is recorded at several points. On the one hand the roll temperatures and on the other hand the side wall temperatures are recorded.
- thermocouples which are either integrated in the rollers 1, 4, 5 or finger protection spindles (not shown in the figures) which are accommodated near the roller surfaces in the roller gap between the anilox roller 1 and the inking roller 4, or the inking roller 4 and plate cylinder 5 , but also, if present, can be used in a cooling system, the temperatures of the coolant being fed in and out being measured. Depending on the design of the cooling circuit, the flow rate of the coolant can also be included in the control as a measurement parameter.
- the side wall temperatures can be detected by means of thermocouples installed thereon or within the side walls.
- thermo-sensitive elements If a temperature change is ascertained by means of the thermo-sensitive elements, then electrical signals are passed on to the comparison element 27 by way of corresponding voltage changes in the thermocouples 34 via the transducer 25.
- the comparison element 27 the correspondingly shaped measured value X is compared with the desired color density value w that can be predetermined from the setpoint generator 26, and the difference X w is passed on to the two stepper motors 30, 31 in the form of a voltage value via the transmission element 28 and the signal amplifier.
- a transducer 25 can be dispensed with.
- the amount of ink can be regulated by changing the imprint width b2 of the inking roller 4 to the anilox roller 1 by changing the axis distance a2
- the amount of moisture emulsified in the ink can be regulated by changing the imprint width b1 of the inking roller 4 to the plate cylinder 5 by changing the axis distance a1.
- the impression widths b1, b2 are preset by means of the on / off cylinder 19 and the presetting wheels 32, 33 at 20 ° C.
- the setpoint generator 26 can deliver a constant value w, which can be changed by desired values in the course of the printing process, or the setpoint w follows a temperature-dependent run-up curve determined by measurements.
- the two eccentric bushes 10, 13 are moved in accordance with a non-linear function. So there are always two adjustments that are not linearly related.
- the double eccentric bearing has two degrees of freedom.
- the double eccentric bearing 10, 13 with its adjusting devices 16, 19, 22 is identical on both sides of the inking roller 4.
- An axially minimal inclination of the inking roller 4 in relation to the anilox roller 1 and the plate cylinder 5 is possible by different settings in order to be able to compensate for possible differences in ink density across the width of the inking roller 4.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4211379 | 1992-04-04 | ||
DE4211379A DE4211379C2 (de) | 1992-04-04 | 1992-04-04 | Anilox-Offset-Druckeinheit mit einem Kurzfarbwerk |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0564936A1 EP0564936A1 (de) | 1993-10-13 |
EP0564936B1 true EP0564936B1 (de) | 1996-09-25 |
Family
ID=6456105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93105094A Expired - Lifetime EP0564936B1 (de) | 1992-04-04 | 1993-03-27 | Anilox-Offset-Druckeinheit mit einem Kurzfarbwerk |
Country Status (4)
Country | Link |
---|---|
US (1) | US5355796A (ja) |
EP (1) | EP0564936B1 (ja) |
JP (1) | JPH0640017A (ja) |
DE (2) | DE4211379C2 (ja) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4232163C3 (de) * | 1992-09-25 | 2001-09-06 | Koenig & Bauer Ag | Vorrichtung zum Aufrechterhalten einer eingestellten Anpressung einer Farbauftragswalze an einem Formzylinder einer Rotationsdruckmaschine |
DE4427967B4 (de) * | 1993-08-24 | 2004-09-30 | Heidelberger Druckmaschinen Ag | Verfahren zum Voreinstellen der Pressung zwischen farbführenden Zylindern einer Druckmaschine |
DE4335282C2 (de) * | 1993-10-15 | 1998-01-29 | Wifag Maschf | Verfahren zur Steuerung des Ablaufs einer angetriebenen Farbauftragwalze in Bezug auf einen angetriebenen Formzylinder im Druckwerk einer Offsetrotationsdruckmaschine sowie ein entsprechend gesteuertes Druckwerk |
GB9426166D0 (en) * | 1994-12-23 | 1995-02-22 | Langston Corp | Printing apparatus |
DE19521827A1 (de) * | 1995-06-16 | 1996-12-19 | Roland Man Druckmasch | Druckmaschinen-Direktantrieb |
DE19732497B4 (de) * | 1997-07-29 | 2005-08-11 | Man Roland Druckmaschinen Ag | Kurzfarbwerk in einem Druckwerk einer Rotationsdruckmaschine |
DE19740480B4 (de) * | 1997-09-15 | 2005-07-21 | Man Roland Druckmaschinen Ag | Verfahren und Vorrichtung zum Anstellen einer Farbwalze einer Rotationsdruckmaschine |
DE59901022D1 (de) * | 1998-07-03 | 2002-04-25 | Koenig & Bauer Ag | Kurzfarbwerk für rotations-druckmaschinen |
US6672211B2 (en) * | 1999-03-03 | 2004-01-06 | James F. Price | Inking systems for printing presses |
ATE295781T1 (de) * | 1999-03-03 | 2005-06-15 | James F Price | Schraubenloses farbwerk für eine druckmaschine |
US6895861B2 (en) * | 2003-07-11 | 2005-05-24 | James F. Price | Keyless inking systems and methods using subtractive and clean-up rollers |
DE19963944C1 (de) | 1999-12-31 | 2001-06-13 | Koenig & Bauer Ag | Verfahren zum Einstellen einer Walze einer Druckmaschine |
DE10021540A1 (de) | 2000-05-03 | 2001-11-08 | Koenig & Bauer Ag | Anordnung zur Einstellung eines Abstandes von Rotationsachsen von Zylindern |
DE10035787C2 (de) * | 2000-07-22 | 2002-05-16 | Koenig & Bauer Ag | Verfahren zur Regelung einer Bahnspannung |
DE10042503A1 (de) * | 2000-08-30 | 2002-03-14 | Roland Man Druckmasch | Rotationsdruckmaschine |
DE20122584U1 (de) * | 2001-03-27 | 2006-07-27 | Windmöller & Hölscher Kg | Einheit zur Einstellung des Druckbildes in einer Rotationsdruckmaschine |
DE10211870B4 (de) | 2001-03-29 | 2010-07-29 | Heidelberger Druckmaschinen Ag | Verfahren zur Justierung zweier aneinander anlegbarer Walzen eines Druckwerks |
DE10232110B4 (de) * | 2001-09-07 | 2015-06-03 | Heidelberger Druckmaschinen Ag | Verfahren zur Einstellung der Feuchtmittelzuführung einer Offset-Druckmaschine |
DE10144563A1 (de) * | 2001-09-11 | 2003-03-27 | Heidelberger Druckmasch Ag | Druckmaschine und Verfahren zum Betreiben eines Farbwerks |
ATE342801T1 (de) | 2001-12-06 | 2006-11-15 | Koenig & Bauer Ag | Verfahren zum betrieb eines farbwerkes oder feuchtwerkes in einer druckmaschine |
WO2003067678A1 (de) * | 2002-02-08 | 2003-08-14 | Siemens Aktiengesellschaft | Erzeugung dünner homogener schichten in der produktion von polymerelektronik |
DE10308408A1 (de) | 2002-03-20 | 2003-10-02 | Heidelberger Druckmasch Ag | Verfahren zur Temperierung einer Druckmaschine |
DE10215422A1 (de) | 2002-04-08 | 2003-10-23 | Roland Man Druckmasch | Farb- oder Feuchtwerk einer Rotationsdruckmaschine |
DE10215613A1 (de) * | 2002-04-09 | 2003-10-30 | Roland Man Druckmasch | Walzenschloss für Walzen eines Farb- oder Feuchterkes von Rotationsdruckmaschinen |
DE10219941A1 (de) * | 2002-05-03 | 2003-11-20 | Roland Man Druckmasch | Farb- oder Feuchtwerk einer Druckmaschine |
DE10325185B4 (de) * | 2002-07-01 | 2017-04-13 | Heidelberger Druckmaschinen Ag | Verfahren zum Betrieb eines Druckwerks einer Druckmaschine in Abhängigkeit von der Farbtemperatur sowie nach dem Verfahren arbeitende Druckmaschinensteuerung |
JP4370087B2 (ja) * | 2002-10-31 | 2009-11-25 | リョービ株式会社 | オフセット印刷機のブランケット胴の支持構造 |
US6796228B2 (en) * | 2002-12-27 | 2004-09-28 | Day International, Inc. | Dampener metering device |
DE102004008090A1 (de) * | 2004-02-19 | 2005-09-08 | Man Roland Druckmaschinen Ag | Vorrichtung zum Positionieren einer Walze in einem Farb- oder Feuchtwerk einer Rotationsdruckmaschine |
EP1859937A3 (de) * | 2004-04-05 | 2010-07-07 | Koenig & Bauer Aktiengesellschaft | Druckeinheit einer Rollenrotationsdruckmaschine |
DE102005014255A1 (de) * | 2005-03-30 | 2006-10-05 | Koenig & Bauer Ag | Lagerung von Walzen und/oder Zylindern in Druckwerken von Rotationsdruckmaschinen |
FR2895310B1 (fr) * | 2005-12-23 | 2009-04-17 | Goss Int Montataire Sa | Dispositif d'encrage et procede d'ajustement correspondant |
US20070214981A1 (en) * | 2006-03-14 | 2007-09-20 | Heidelberger Druckmaschinen Ag | Sheet-fed printing machine |
DE102006011859A1 (de) * | 2006-03-15 | 2007-09-20 | Heidelberger Druckmaschinen Ag | Bogendruckmaschine |
DE102007011045B4 (de) * | 2006-03-24 | 2011-12-22 | Heidelberger Druckmaschinen Ag | Druckmaschine |
DE102006050567B4 (de) * | 2006-10-26 | 2009-09-17 | Koenig & Bauer Aktiengesellschaft | Druckwerk |
JP5053051B2 (ja) * | 2006-11-20 | 2012-10-17 | ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト | アニロックス印刷ユニット |
DE102007022079A1 (de) * | 2007-05-11 | 2008-11-13 | Heidelberger Druckmaschinen Ag | Verfahren zum automatisierten Justieren einer Rotationskörperpressung in einer Druckmaschine |
DE102008015531A1 (de) | 2008-03-25 | 2009-10-01 | Koenig & Bauer Aktiengesellschaft | Kurzfarbwerk für eine Rotationsdruckmaschine |
DE102008035277A1 (de) * | 2008-07-29 | 2010-02-04 | Fischer & Krecke Gmbh | Verfahren zum Einstellen von Walzenpositionen in einer Rotationsdruckmaschine |
US20110132216A1 (en) * | 2009-12-09 | 2011-06-09 | 7242514 Canada Inc. | Stack angle compensation arrangement for a skewing adjustment system in an offset printing press |
US20120174807A1 (en) * | 2010-12-16 | 2012-07-12 | Goss International Americas, Inc. | Adjustable Inking or Dampening Apparatus for a Variable Cutoff Press and Method |
CN102689499B (zh) * | 2011-03-24 | 2015-04-29 | 海德堡印刷机械股份公司 | 网纹辊印刷装置 |
DE102013217942B4 (de) | 2013-09-09 | 2017-04-27 | Koenig & Bauer Ag | Verfahren und Vorrichtung zum Stellen von Rotationskörpern einer Druckmaschine |
DE102013217948B4 (de) | 2013-09-09 | 2016-05-12 | Koenig & Bauer Ag | Druckmaschine für den Wertpapierdruck mit einem Orlof-Offsetdruckwerk |
DE102019111804A1 (de) * | 2019-05-07 | 2020-11-12 | Koenig & Bauer Ag | Verfahren zum Einstellen und/oder Ändern eines Farbtransfers, Druckwerk sowie Druckmaschine mit einem Druckwerk |
CN113939403B (zh) * | 2019-02-05 | 2022-07-29 | 柯尼格及包尔公开股份有限公司 | 凹版印刷装置以及在凹版印刷方法中用于设置和/或改变油墨传输的方法 |
CN112046131A (zh) * | 2020-09-09 | 2020-12-08 | 时瑶 | 一种自动调节转辊压力和自动上墨的印刷设备 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE708553C (de) * | 1934-06-17 | 1941-07-24 | Albert Schnellpressen | Farbwerk fuer Rotationsdruckmaschinen zum gleichzeitigen An- und Abstellen aller Farbwalzen |
GB620148A (en) * | 1945-05-22 | 1949-03-21 | Goss Printing Press Co Ltd | Improvements in or relating to inking mechanisms for printing presses |
US2568761A (en) * | 1946-03-22 | 1951-09-25 | Miehle Printing Press & Mfg | Pressure adjustment and trip for printing cylinders |
FR1140380A (fr) * | 1954-10-01 | 1957-07-19 | Crabtree & Sons Ltd R | Perfectionnement aux machines à imprimer |
US4426897A (en) * | 1981-07-13 | 1984-01-24 | Littleton Francis J | Thermal adjustment method and apparatus for rotating machines |
DE3707996C1 (en) * | 1987-03-12 | 1988-10-20 | Roland Man Druckmasch | Device for influencing the pressure of the bearing ring |
DE3838546A1 (de) * | 1988-01-09 | 1989-07-20 | Frankenthal Ag Albert | Rakeleinrichtung |
DE3825517A1 (de) * | 1988-07-27 | 1990-02-01 | Wifag Maschf | Vorrichtung zum an- und abstellen sowie einstellen von farbwerks- bzw. feuchtwerkswalzen einer druckmaschine |
US5094162A (en) * | 1990-08-30 | 1992-03-10 | A. B. Dick Company | Offset printing machine |
-
1992
- 1992-04-04 DE DE4211379A patent/DE4211379C2/de not_active Expired - Fee Related
-
1993
- 1993-03-27 DE DE59303921T patent/DE59303921D1/de not_active Expired - Fee Related
- 1993-03-27 EP EP93105094A patent/EP0564936B1/de not_active Expired - Lifetime
- 1993-03-30 US US08/040,126 patent/US5355796A/en not_active Expired - Fee Related
- 1993-04-02 JP JP5076534A patent/JPH0640017A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH0640017A (ja) | 1994-02-15 |
DE4211379A1 (de) | 1993-10-14 |
DE4211379C2 (de) | 1999-01-07 |
DE59303921D1 (de) | 1996-10-31 |
EP0564936A1 (de) | 1993-10-13 |
US5355796A (en) | 1994-10-18 |
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