EP0085164B1 - Farbmesser und Einstellvorrichtung für das Farbmesser am Farbkasten von Rotationsdruckmaschinen - Google Patents

Farbmesser und Einstellvorrichtung für das Farbmesser am Farbkasten von Rotationsdruckmaschinen Download PDF

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Publication number
EP0085164B1
EP0085164B1 EP82111557A EP82111557A EP0085164B1 EP 0085164 B1 EP0085164 B1 EP 0085164B1 EP 82111557 A EP82111557 A EP 82111557A EP 82111557 A EP82111557 A EP 82111557A EP 0085164 B1 EP0085164 B1 EP 0085164B1
Authority
EP
European Patent Office
Prior art keywords
ink
ink fountain
adjusting
knife
adjusting device
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
EP82111557A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0085164A1 (de
Inventor
Rudi Junghans
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
Family has litigation
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0085164A1 publication Critical patent/EP0085164A1/de
Application granted granted Critical
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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
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2231/00—Inking devices; Recovering printing ink
    • B41P2231/12—Axially segmented ink blades

Definitions

  • the invention relates to an adjusting device for the ink knife on the ink fountain of rotary printing presses with individually controllable zone-wide tongues, on which actuating means for adjusting the distance of the scraper edge from the ink fountain roller act, and which are covered with an elastic plastic cover with a smooth surface, which covers the Skimming edge extends beyond.
  • a known embodiment of this type (US Pat. No. 2,837,024) uses a thin spring steel knife in which a rubber or plastic cover is vulcanized in the area of the slots.
  • the known embodiment has the disadvantage that the cover in the area of the slits is pressed off the ink fountain roller by the back pressure of the ink, so that an uncontrolled ink strip reaches the inking unit.
  • the wear behavior of the cover and the spring steel knife is different, so that this can also lead to sealing problems on the ink fountain roller.
  • a major disadvantage of the known design is that the printer cannot determine how hard he places the individual zone on the ink fountain roller by means of the adjusting screws when the ink zone is switched off, so that higher wear is to be expected. In this case the color knife has to be reground or it cannot be used together with the vulcanized cover. This increases the effort and thus the costs for the practical use of the known design.
  • a basic setting of all scraper edges is very complex.
  • EP-A 21 002 shows an ink metering device in which no ink meter is provided on the ink fountain. Adjustments are used here, which are supported by a film on the ink fountain roller and which can be adjusted by twisting or moving. The film shown here only has to be elastic in order to adapt to the metering areas and their design.
  • the object of the invention is to design an adjusting device for the color knife in such a way that an optimal ink quantity regulation can be carried out with little effort and that the necessary adjustment work only requires a very short expenditure of time during assembly. Soiling of the adjusting means on the ink fountain by paint should also be avoided.
  • each tongue of the ink knife can be positioned from a uniform zero position via an eccentric actuating element, which is pivotally mounted on the ink fountain about a pivot point that can be adjusted to produce a uniform zero position that the ink knife is zoned in the area of its scraping edge is divided by slots with a width of less than 1 mm and that the cover consists of a thin, hard and elastic film.
  • the ink quantity to be transferred to the inking unit can be set precisely in each zone with little effort.
  • the individual tongues of the color meter can be set very precisely using a remote control so that the amount of color can be regulated without any problems.
  • the uniform zero position that can be achieved by means of adjusting means prevents the zones from being set too hard and thus prevents the film from being worn out unintentionally. This also has advantages for the remote control, because the zero position enables reproducible control of all ink meter zones. Very narrow slits in the color knife allow the use of thin foils without bulging into the slits.
  • the smooth surface of the film prevents dirt particles from sticking in front of the metering gap.
  • the film protruding over the scraper edge certainly prevents parts of the actuating device from getting dirty with paint and has low wear behavior at the metering edge. Nevertheless, e.g. incorrect handling of the paint spatula, damage to the film can then be easily replaced and the new film immediately returns to its original zero position.
  • the advantageous embodiment according to claim 2 enables the use of very thin foils, with the bending of the ink creeping along the foil feeding the ink fountain roller, so that dripping of the same is excluded with certainty.
  • Claims 3 to 6 contain advantageous refinements of the subject matter of the invention, which facilitate the operation of the color knife and the setting device and make it safer.
  • the sheets to be printed are passed between printing cylinder 1 and blanket cylinder 2 in a known manner.
  • the rubber cylinder 2 works together with a plate cylinder 3, which is provided with dampening solution and ink by a dampening unit 4 and an inking unit 5.
  • the structure of the dampening and inking unit corresponds to a modern design, the dampening solution 8 being fed from a dampening roller 6 and the ink 9 from an ink fountain roller 7 to the rollers of the dampening or inking unit.
  • a plurality of adjusting means 11 are provided on the ink fountain 10, parallel to the ink fountain roller 7, with which the ink quantity to be transferred to the inking unit can be regulated zone by zone.
  • the ink 9 is regulated by an ink knife 12 which is plate-shaped and extends over the length of the ink fountain roller 7. With large machine widths, several color knives can also be provided side by side. In the area of its scraper edge 13 up to approximately the color surface shown, the color knife is divided zone by zone by slots 14 with a very small width into tongues about 30 mm wide.
  • the slots 14 provided in the front area of the color knife 12 are less than 1 mm wide and are preferably produced in a width of approximately 0.2 mm by means of laser beams (FIG. 3).
  • the ink knife 12 is glued to a support bar 15, which in turn is fastened to the ink fountain 10 by means of screws 16.
  • the entire length and width of the color knife 12 is covered with an elastic cover, which consists of a thin, hard and elastic film 17 with a smooth surface.
  • the film 17 is preferably made of polyester or polyimide and projects beyond the scraping edge 13 of the ink knife 12. In its projecting part, it lies tangentially against the ink fountain roller 7 and is angled in its front region towards the ink fountain roller. In this way, uncontrolled ink droplets can be fed back to the lateral surface of the ink fountain roller 7, so that contamination of the inking unit is prevented.
  • it is hooked over its length in the rear area at angles 18 which are fastened to the support bar 15.
  • adjusting means 11 are provided as setting devices for the ink knife, by means of which each zone-wide tongue of the ink knife 12 can be adjusted to a precise and reproducible gap relative to the outer surface of the ink fountain roller 7.
  • each tongue rests on an eccentric control element 19 and can be precisely positioned by turning it.
  • the eccentric control element 19 is mounted on the ink fountain 10 via a fulcrum 20 to which the bearing surface 21 is eccentric.
  • the eccentric bearing surface 21 adjoins an area 22 which has a certain radius with respect to the pivot point 20 of the actuating element 19. This prevents the scraper edge 13 from being pressed against the lateral surface of the ink fountain roller 7 in such a way that the film 17 is damaged in this area.
  • the maximum provision of the scraper edge is designed so that sufficient film thickness is always maintained.
  • the control element 19 is mounted with its pivot point 20 in a fork pin 23 which is supported on the ink fountain 10 via springs 24. With the nut 25, the fork pin can be moved in the longitudinal direction and thus once the basic setting of the pivot point 20, e.g. to compensate for manufacturing tolerances.
  • the mother 25 is supported here on a sleeve 26 on the ink fountain 10. In this way, each individual zone can be set in an absolutely identical zero position to the ink fountain roller 7 over the length of the ink knife. This is done by setting once each scraper edge 13 without an inserted film 17 to an exact dimension to the lateral surface of the duct roller 7, which corresponds to approximately 50% of the film thickness. The individual zone of the colorimeter is then pretensioned by this amount.
  • a servomotor 27 which rotates a threaded pin 29 via a potentiometer 28 for indicating the position, which is mounted in the ink fountain 10.
  • the threaded pin 29 can also be turned manually using a handwheel 30.
  • a threaded bushing 31 moves in the axial direction of the threaded pin 29, so that the movement is transmitted to the actuating element 19 via a tab 32 and this pivots about the pivot point 20. Due to the preload with which the ink knife 12 rests on the support surface 21, this movement leads to an exact change in the ink gap.
  • eccentric contact surface 21 instead of the eccentric contact surface 21, other means can also be used, e.g. Rolls on which the tongues of the color knife 12 rest.
  • the actuating element 19 is guided twice by the tab 32 and the fork pin 23, so that the same is prevented from tilting.
  • the servomotor 27 can be connected to a remote control in a known manner, so that the setting of the color meter selected for a specific edition can be reproduced at any time.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Coating Apparatus (AREA)
EP82111557A 1982-02-03 1982-12-13 Farbmesser und Einstellvorrichtung für das Farbmesser am Farbkasten von Rotationsdruckmaschinen Expired EP0085164B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3203500 1982-02-03
DE3203500A DE3203500C2 (de) 1982-02-03 1982-02-03 Farbmesser und eine Einstellvorrichtung für ein Farbmesser

Publications (2)

Publication Number Publication Date
EP0085164A1 EP0085164A1 (de) 1983-08-10
EP0085164B1 true EP0085164B1 (de) 1987-03-11

Family

ID=6154604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111557A Expired EP0085164B1 (de) 1982-02-03 1982-12-13 Farbmesser und Einstellvorrichtung für das Farbmesser am Farbkasten von Rotationsdruckmaschinen

Country Status (9)

Country Link
US (1) US4495864A (da)
EP (1) EP0085164B1 (da)
JP (1) JPS58138652A (da)
AT (1) AT386156B (da)
CA (1) CA1208071A (da)
DE (2) DE3203500C2 (da)
DK (1) DK156888C (da)
ES (1) ES277341Y (da)
ZA (1) ZA829560B (da)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2579136B1 (fr) * 1985-03-22 1988-03-11 Chambon Machines Encrier a segments doseurs regles individuellement pour une imprimeuse
DE3538256A1 (de) * 1985-10-28 1987-04-30 Heidelberger Druckmasch Ag Farbkasten fuer offset- oder hochdruckmaschinen
DE3613806A1 (de) * 1986-04-24 1987-10-29 Steuber Heinrich Farbmesseranordnung
JPH02127437U (da) * 1989-03-31 1990-10-19
US5148742A (en) * 1991-01-10 1992-09-22 Belgium Tool And Die Company Can coater with improved deactivator responsive to absence of a workpiece
US5461979A (en) * 1992-10-19 1995-10-31 Bruni Ag Grafische Maschinen Multiple blade ink knife
DE4341243C2 (de) * 1992-12-11 1996-04-04 Heidelberger Druckmasch Ag Dosiervorrichtung einer Druckmaschine mit gegen eine Zuführwalze stellbaren Dosierelementen
FR2701893B1 (fr) * 1993-02-24 1995-05-19 Sarda Jean Encrier pour presse à imprimer permettant un réglage général et individuel du débit d'encre par zones d'encrage indépendantes les unes des autres.
FR2705613B1 (fr) * 1993-05-27 1995-11-24 Roland Man Druckmasch Racle à chambre.
DE19525529C1 (de) * 1995-07-13 1996-06-05 Koenig & Bauer Albert Ag Verfahren zur Montage einer Dosiereinrichtung in einer Rotationsdruckmaschine
JP2896894B1 (ja) * 1998-05-15 1999-05-31 株式会社東京機械製作所 ドクターブレード装置
EP1034926B1 (de) * 1999-03-11 2003-10-08 Heidelberger Druckmaschinen Aktiengesellschaft Segmentierte Farbmesseranordnung an einer Farbzufuhreinrichtung
US6612238B2 (en) 2000-04-26 2003-09-02 Heidelberger Druckmaschinen Ag Inking unit in a printing machine
US6802255B2 (en) * 2002-12-09 2004-10-12 Color Control Corp. Ink fountain mechanism
US7032511B2 (en) * 2003-04-16 2006-04-25 A.B. Dick Company Fountain ink feed system
DE102006062980B3 (de) 2005-12-12 2021-07-29 Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg Detektor zur Schließpunkterfassung im Farbkasten
DE102006054006B4 (de) * 2005-12-12 2014-05-15 Heidelberger Druckmaschinen Ag Verschleißdetektor für Farbkastenfolien
CN102139559A (zh) 2010-02-01 2011-08-03 海德堡印刷机械股份公司 印刷机的油墨配量装置
JP2013039748A (ja) * 2011-08-17 2013-02-28 Komori Corp インキ供給装置
DE102017222345A1 (de) * 2017-01-13 2018-07-19 Heidelberger Druckmaschinen Ag Rakelvorrichtung einer Druckmaschine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837024A (en) * 1955-04-07 1958-06-03 John Waldron Corp Ink fountain blade
US3318239A (en) * 1964-10-29 1967-05-09 Handcraft Co Ink fountain liner and installation means therefor
US3456585A (en) * 1967-03-22 1969-07-22 John C Motter Printing Press C Blade-setting mechanism
DE1942732C3 (de) * 1969-06-11 1975-07-10 Veb Polygraph Leipzig Kombinat Fuer Polygraphische Maschinen Und Ausruestungen, X 7050 Leipzig Farbkasten an Druckmaschinen
US3822642A (en) * 1971-08-02 1974-07-09 G Grindeland Apparatus for removing foreign particles from a lithographic press
US3699888A (en) * 1971-09-13 1972-10-24 North American Rockwell Composite fountain blade construction for remote ink control system
DE2228625B2 (de) * 1972-06-13 1974-07-11 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Farbkasten für Druckmaschinen
DE2305831A1 (de) * 1973-02-07 1974-08-08 Jansen Fa R Messer fuer farbauftragswalzen von druckwerken od.dgl
FR2220381B3 (da) * 1973-03-07 1976-12-03 Roland Offsetmaschf
DE2648098C3 (de) * 1976-10-23 1984-01-05 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbkasten für Offset- oder Hochdruckmaschinen
DE2711553A1 (de) * 1977-03-17 1978-09-21 Heidelberger Druckmasch Ag Farbkasten fuer offset- oder hochdruckmaschinen
DE2923678C2 (de) * 1979-06-12 1982-02-18 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbkasten mit einzelnen, jeweils über die gesamte Zonenbreite reichenden Farbdosiereinrichtungen
DE2931579C2 (de) * 1979-08-03 1982-11-11 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Einrichtung zur zonalen Regulierung der Feuchtmittelführung
JPS5853609B2 (ja) * 1979-09-13 1983-11-30 日産自動車株式会社 車両用座席の高さ調整装置
JPS5692068A (en) * 1979-12-27 1981-07-25 Toshiba Mach Co Ltd Controller for discharge of ink
DE3025980C2 (de) * 1980-07-09 1984-01-12 Miller-Johannisberg Druckmaschinen Gmbh, 6200 Wiesbaden Vorrichtung zum Verstellen des Farbmessers bei Druckmaschinen-Farbwerken

Also Published As

Publication number Publication date
ATA473482A (de) 1987-12-15
DE3203500A1 (de) 1983-08-11
ES277341U (es) 1986-01-16
DE3275638D1 (en) 1987-04-16
EP0085164A1 (de) 1983-08-10
JPS58138652A (ja) 1983-08-17
US4495864A (en) 1985-01-29
DK483A (da) 1983-08-04
DK156888B (da) 1989-10-16
ZA829560B (en) 1983-10-26
AT386156B (de) 1988-07-11
CA1208071A (en) 1986-07-22
DK483D0 (da) 1983-01-03
DE3203500C2 (de) 1988-03-03
DK156888C (da) 1990-03-12
ES277341Y (es) 1986-10-01
JPH0329592B2 (da) 1991-04-24

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