EP0159474B1 - Farbwerk für Offsetdruckmaschinen - Google Patents

Farbwerk für Offsetdruckmaschinen Download PDF

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Publication number
EP0159474B1
EP0159474B1 EP85101334A EP85101334A EP0159474B1 EP 0159474 B1 EP0159474 B1 EP 0159474B1 EP 85101334 A EP85101334 A EP 85101334A EP 85101334 A EP85101334 A EP 85101334A EP 0159474 B1 EP0159474 B1 EP 0159474B1
Authority
EP
European Patent Office
Prior art keywords
ink
roller
dampening
inking unit
inking
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
Application number
EP85101334A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0159474A1 (de
Inventor
Willi Jeschke
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 EP0159474A1 publication Critical patent/EP0159474A1/de
Application granted granted Critical
Publication of EP0159474B1 publication Critical patent/EP0159474B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/04—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
    • B41F7/06—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs for printing on sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices

Definitions

  • the invention relates to an inking unit for offset printing machines according to the preamble of claim 1 (EP-A-0 064 270, Art 54 (3)).
  • an inking roller with an elastic surface is provided for inking the printing plate, the diameter of which is significantly smaller than that of the plate cylinder.
  • This inking roller is assigned an ink cylinder which receives the ink to be transferred from a metering roller, so that an ink film of a certain thickness is produced over the entire width.
  • the metering roller is driven at a lower speed than the ink cylinder, such that a change in the ink film thickness can be achieved due to the existing slip between the metering roller and transfer roller.
  • a dampening unit is associated with the known version of the applicator roller.
  • the rider rollers which are also assigned to the applicator roller and carry out a lateral rubbing movement, serve the purpose of achieving a more uniform color distribution after this additional effort is required to eliminate ghost images in the known embodiment.
  • So-called "short” inking units are already known, in which the split ink film returning from the plate is completely covered with a large amount of ink and then rebuilt by knife coating.
  • This type of inking unit includes the design according to DE-B-2 323 025.
  • the main disadvantage of this type is that the inking roller is exposed to high mechanical wear due to the doctor device.
  • the high peripheral speeds of modern offset printing machines mean that high temperatures occur on the doctor device - regardless of whether it is a doctor roller or a doctor edge.
  • an opposite direction of movement of the lateral surfaces of the doctor roller and the applicator roller and penetration of the doctor device into the ink application roller are necessary. If this causes damage to the inking roller, also due to the deposition of dirt particles at the squeegee point, markings in the print are inevitable.
  • the object of the invention is to provide an inking unit which, when using a maximum of two inking rollers, works without stenciling on the application roller and does not require any stenciling and ensures perfect, low-wear inking of the printing plate, so that printing jobs can be carried out in the highest quality and in which no stenciling can occur due to the necessary dampening of the offset plate.
  • the task can be solved according to the characterizing part of claim 1.
  • This solution only uses an inking roller and an ink cylinder, to which a ink metering device for producing a continuous, uniform ink film and seen in the same direction of rotation, after which a dampening device is assigned.
  • the diameter of the inking rollers is designed so that it corresponds to the plate cylinder diameter. This means that this solution to the task only needs two inking rollers, the outer surfaces of which roll on each other without much frictional heat.
  • the advantageous design of the inking unit also reliably prevents stenciling.
  • the arrangement of the dampening device on the ink cylinder after the ink application has the advantage that the continuous wet film is applied to a likewise continuous ink film, so that no stenciling can be caused by dampening rollers.
  • the features of the subclaims relate to advantageous configurations of the solution according to the invention.
  • claim 4 is for simpler printing systems, e.g. B. for newspaper printing, prefer to place the fountain solution on the inking roller in front of the contact point between the inking roller and plate cylinder. This ensures that the wet film is worked into the ink film at the contact point between the inking roller and the plate cylinder.
  • one or more distribution rollers are assigned to the ink cylinder after the ink application, which guarantee a homogenization of the ink film. There is no fear of stenciling, because there is no color profile on the ink cylinder at this point.
  • the printing result can also be improved by the additional friction roller with a rough chrome surface on the applicator roller according to claim 9, because this works the dampening solution into the ink film even before the plate cylinder, whereby there is no ink splitting and thus no stenciling due to the chrome surface of the distribution roller.
  • FIG. 1 an offset printing unit for printing sheets is shown with a sheet system 1, with which the sheets are fed to a printing cylinder 2. On this cylinder they receive their imprint from a rubber cylinder 3. After printing, they are fed from a delivery system 4 to the delivery stack 5.
  • the rubber cylinder 3 interacts with a plate cylinder 6, to which an inking roller 7 is assigned, the diameter of which almost corresponds to the plate cylinder diameter.
  • the inking roller 7 has an elastic surface and transfers an absolutely uniform ink film of constant thickness to the printing areas of the printing plate of the plate cylinder 6.
  • the inking roller 7 is assigned an ink cylinder 8, the diameter of which has been chosen smaller.
  • the ink cylinder 8 is assigned an ink fountain 9 with an ink metering device 10 (not to be explained in more detail), which enables the ink film thickness on the ink cylinder 8 to be regulated.
  • a dampening unit 11 is assigned to the ink cylinder 8, which transfers the dampening solution from a dampening tank 12 to the ink cylinder 8 via the dampening rollers 13, 14 and 15.
  • the dampening application roller 15 around the last dampening roller 13 can be switched off from the ink cylinder 8 and can be set on the plate cylinder 6 so that it can be used directly for a short time
  • the embodiment of an offset printing unit shown in FIG. 2 differs from FIG. 1 by the arrangement of the inking roller 7 'and the ink cylinder 8'.
  • the dampening unit 21 is assigned to the inking roller 7 'with a roller 24 which transfers the dampening solution, so that the dampening solution is already applied to the existing ink film.
  • an additional friction roller 31 with a rough chrome surface is provided after the dampening unit 21, which incorporates the dampening solution into the ink film.
  • the ink cylinder 8 ' has one or more distribution rollers 30 instead of the dampening unit, which contribute to the homogenization of the ink film, so that even the smallest disturbances in the ink profile are eliminated.
  • the ink cylinder 8 ' can, for. B. in the case of high paper dust, a device 20 removing the residual color profile.
  • the ink cylinders 8, 8 ' are formed with a hard, non-elastic surface.
  • the application rollers can therefore be made thicker than the plate cylinder for subsequent regrinding up to approx. 1 mm in diameter.
  • Another advantage of the small diameter differences is that an impurity such. B. on the outer surface of an application roller, migrates by a small amount on the circumference with each plate cylinder rotation and thus does not lead to selective damage to the printing plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Color Image Communication Systems (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP85101334A 1981-10-31 1982-10-19 Farbwerk für Offsetdruckmaschinen Expired EP0159474B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3143314 1981-10-31
DE3143314 1981-10-31
DE3232780 1982-09-03
DE3232780A DE3232780C2 (de) 1981-10-31 1982-09-03 Farbwerk für Offsetdruckmaschinen

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP82109626.0 Division 1982-10-19

Publications (2)

Publication Number Publication Date
EP0159474A1 EP0159474A1 (de) 1985-10-30
EP0159474B1 true EP0159474B1 (de) 1989-01-04

Family

ID=25797014

Family Applications (2)

Application Number Title Priority Date Filing Date
EP82109626A Expired EP0078444B1 (de) 1981-10-31 1982-10-19 Farbwerk für Offsetdruckmaschinen
EP85101334A Expired EP0159474B1 (de) 1981-10-31 1982-10-19 Farbwerk für Offsetdruckmaschinen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP82109626A Expired EP0078444B1 (de) 1981-10-31 1982-10-19 Farbwerk für Offsetdruckmaschinen

Country Status (9)

Country Link
US (1) US4573407A (da)
EP (2) EP0078444B1 (da)
AT (1) AT384996B (da)
AU (1) AU562988B2 (da)
CA (1) CA1208489A (da)
DE (3) DE3232780C2 (da)
DK (1) DK467382A (da)
ES (1) ES8307591A1 (da)
NO (1) NO159360C (da)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217569C2 (de) * 1982-05-11 1985-11-28 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Verfahren und Vorrichtung zum Dosieren der Farbe bei Offsetdruckmaschinen
DE3401886A1 (de) * 1984-01-20 1985-08-01 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Verfahren und vorrichtung zur einfaerbung der platte eines plattenzylinders von rotationsdruckmaschinen
US4869665A (en) * 1987-04-01 1989-09-26 Maxon Corporation Carbon monoxide reducing endplate apparatus
DD283581A5 (de) * 1988-03-25 1990-10-17 Veb Kombinat Polygraph "Werner Lamberz" Leipzig,Dd Kurzfarbwerk
DE8816770U1 (da) * 1988-04-02 1990-08-09 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3917340A1 (de) * 1989-05-27 1990-11-29 Simon Sa Offset-rotationsmaschine
DE3922559C2 (de) * 1989-07-08 1994-03-24 Roland Man Druckmasch Offsetdruckwerk
DE19731003B4 (de) * 1997-07-18 2004-07-01 Man Roland Druckmaschinen Ag Kurzfarbwerk
DE19732497B4 (de) * 1997-07-29 2005-08-11 Man Roland Druckmaschinen Ag Kurzfarbwerk in einem Druckwerk einer Rotationsdruckmaschine
GB2398272B (en) * 2003-02-17 2006-03-22 Goss Graphic Systems Ltd Inking unit
DE102006004568A1 (de) * 2006-02-01 2007-08-02 Koenig & Bauer Aktiengesellschaft Kurzfarbwerk für eine Druckmaschine
JP2009533187A (ja) * 2006-04-12 2009-09-17 スパイナルモーション， インコーポレイテッド 後方脊椎の装置および方法
DE102006035504A1 (de) * 2006-07-31 2008-02-07 Koenig & Bauer Aktiengesellschaft Druckeinheit einer Rollenrotationsdruckmaschine
DE102008015531A1 (de) 2008-03-25 2009-10-01 Koenig & Bauer Aktiengesellschaft Kurzfarbwerk für eine Rotationsdruckmaschine
EP3169522B1 (de) 2014-07-16 2018-04-25 KBA-MetalPrint GmbH Farbwerk eines druckwerks
PL3169519T3 (pl) 2014-07-16 2018-07-31 Kba-Metalprint Gmbh Zespół drukujący z cylindrem płytowym i zmieniaczem płyt
EP3169520B1 (de) 2014-07-16 2018-04-25 KBA-MetalPrint GmbH Vorrichtung mit mehreren druckwerken jeweils zum bedrucken von hohlkörpern
EP3169521B1 (de) 2014-07-16 2018-04-25 KBA-MetalPrint GmbH Vorrichtung zum bedrucken von hohlkörpern
WO2016008701A1 (de) 2014-07-16 2016-01-21 Kba-Metalprint Gmbh Farbwerk eines druckwerks
DE102014213804A1 (de) * 2014-07-16 2016-01-21 Kba-Metalprint Gmbh Farbwerk eines Druckwerks
DE102016201137B4 (de) 2016-01-27 2018-12-27 Kba-Metalprint Gmbh Vorrichtung zum Bedrucken von Hohlkörpern
DE102016201139B4 (de) 2016-01-27 2019-01-10 Kba-Metalprint Gmbh Vorrichtung zum Bedrucken von Hohlkörpern
DE102016201140B4 (de) 2016-01-27 2018-05-03 Kba-Metalprint Gmbh Verfahren zum Betrieb einer ein Segmentrad aufweisenden Vorrichtung zum Bedrucken von Hohlkörpern
DE102017201921B4 (de) 2017-02-08 2022-02-17 Koenig & Bauer Ag Vorrichtung zum Bedrucken von Hohlkörpern
DE102017202382A1 (de) 2017-02-15 2018-08-16 Kba-Metalprint Gmbh Verfahren zum Betrieb einer Vorrichtung zum Bedrucken von Hohlkörpern
DE102017202384A1 (de) 2017-02-15 2018-08-16 Kba-Metalprint Gmbh Verfahren zum Bedrucken von Hohlkörpern
DE102017202381A1 (de) 2017-02-15 2018-08-16 Kba-Metalprint Gmbh Verfahren zum Bedrucken von Hohlkörpern
DE102017206392A1 (de) 2017-04-13 2018-10-18 Koenig & Bauer Ag Segmentrad einer Vorrichtung zum Bedrucken von Hohlkörpern
DE102018201033B3 (de) 2018-01-24 2018-10-31 Koenig & Bauer Ag Vorrichtung zum Bedrucken von Hohlkörpern
DE102018121542B4 (de) 2018-09-04 2022-03-17 Koenig & Bauer Ag Vorrichtung zum Bedrucken von Hohlkörpern
DE102018121540A1 (de) 2018-09-04 2020-03-05 Koenig & Bauer Ag Vorrichtung zum Bedrucken von Hohlkörpern

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064270A1 (de) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Farbwerk

Family Cites Families (20)

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DE678543C (de) * 1937-10-06 1939-07-17 Carl Einar Larsen Verfahren und Vorrichtung zum Feuchten der Flachdruckformen einer Druckmaschine, namentlich beim Offsetdruck
US3203346A (en) * 1961-05-02 1965-08-31 Harris Intertype Corp Three cylinder convertible printing press
DE1561113A1 (de) * 1966-12-05 1970-02-12 Winkler Duennebier Kg Masch Feuchtwerk fuer Offsetdruckmaschinen
US3585932A (en) * 1968-06-07 1971-06-22 Wallace H Granger Automatic inking system for rotary newspaper printing press
GB1216686A (en) * 1968-07-18 1970-12-23 Standard Telephones Cables Ltd An electromagnet switching circuit
BE759110A (fr) * 1969-11-20 1971-05-18 Xerox Corp Methode et appareil d'encrage lithographique (
US3709147A (en) * 1970-12-03 1973-01-09 W Granger Ink transfer cylinder mounting with adjustable drive clutch
US3911815A (en) * 1972-05-02 1975-10-14 Roland Offsetmaschf Mechanism for dampening the printing plate of an offset printing press
CA1019637A (en) * 1972-05-09 1977-10-25 Dahlgren Manufacturing Company Method and apparatus for inking printing plates
US4041864A (en) * 1972-05-09 1977-08-16 Dahlgren Manufacturing Company Method and apparatus for inking printing plates
US4127067A (en) * 1974-02-15 1978-11-28 Dahlgren Harold P Method for inking printing plates
BE857275A (fr) * 1975-09-15 1977-11-14 Addressograph Multigraph Systeme et procede de fourniture d'encre
DE2654007B2 (de) * 1976-11-27 1980-02-07 Heinz-Joachim 7570 Baden- Baden Schinke Farbwerk für Büro-Offsetmaschinen
FR2397939A1 (fr) * 1977-07-22 1979-02-16 Chambon Machines Dispositif d'encrage pour impression a l'encre grasse
US4233898A (en) * 1978-06-23 1980-11-18 Dahlgren Manufacturing Company Reversible newspaper press
DE2902229A1 (de) * 1979-01-20 1980-07-24 Maschf Augsburg Nuernberg Ag Vorrichtung zum zufuehren von fluessigkeit zum plattenzylinder einer druckmaschine
DE2932105C2 (de) * 1979-08-08 1982-08-12 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk und Feuchtwerk einer Offsetrotationsdruckmaschine mit zwei Farbwalzensträngen
JPS56501558A (da) * 1979-11-05 1981-10-29
DE3049009A1 (de) * 1980-12-24 1982-07-22 Color Metal AG, 8045 Zürich "einrichtung zum einfaerben einer druckform"
DE3134796C2 (de) * 1981-09-02 1983-12-01 Koenig & Bauer AG, 8700 Würzburg Farbwerk für eine Rotationsdruckmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064270A1 (de) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Farbwerk

Also Published As

Publication number Publication date
DE3279324D1 (en) 1989-02-09
US4573407A (en) 1986-03-04
DE3232780A1 (de) 1983-05-11
EP0078444A1 (de) 1983-05-11
EP0159474A1 (de) 1985-10-30
DE3270008D1 (en) 1986-04-24
ES516981A0 (es) 1983-08-01
DK467382A (da) 1983-05-01
NO823608L (no) 1983-05-02
AU9000182A (en) 1983-05-05
NO159360B (no) 1988-09-12
ES8307591A1 (es) 1983-08-01
EP0078444B1 (de) 1986-03-19
CA1208489A (en) 1986-07-29
DE3232780C2 (de) 1986-02-06
AT384996B (de) 1988-02-10
ATA353882A (de) 1987-07-15
AU562988B2 (en) 1987-06-25
NO159360C (no) 1988-12-21

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