EP0107788B1 - Vorrichtung zum zonenweisen Dosieren von Farbe auf der Farbkastenwalze eines Farbwerkes für Druckmaschinen - Google Patents

Vorrichtung zum zonenweisen Dosieren von Farbe auf der Farbkastenwalze eines Farbwerkes für Druckmaschinen Download PDF

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Publication number
EP0107788B1
EP0107788B1 EP83109519A EP83109519A EP0107788B1 EP 0107788 B1 EP0107788 B1 EP 0107788B1 EP 83109519 A EP83109519 A EP 83109519A EP 83109519 A EP83109519 A EP 83109519A EP 0107788 B1 EP0107788 B1 EP 0107788B1
Authority
EP
European Patent Office
Prior art keywords
ink
ink knife
knife sections
fountain roller
sections
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
EP83109519A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0107788A1 (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 EP0107788A1 publication Critical patent/EP0107788A1/de
Application granted granted Critical
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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 a device for zone-wise metering of ink on the ink fountain roller of an inking unit for printing presses with a zone-divided ink knife sealed against ink flow and with actuators for adjusting the ink knife members.
  • ink metering device In another known ink metering device (DE-AS 2228625) zone-wide individual sections are provided for metering the amount of ink, each of which can be adjusted via actuators relative to the ink fountain roller. It is irrelevant whether the individual sections are formed by slits of a continuous color knife or whether they are individual pieces of color meter that are arranged next to one another. In both versions, it is necessary to cover the individual sections with a film or a thin color knife in order to prevent them from becoming dirty and sticking to one another. This results in a two-layer construction, with the thinner, upper layer to adapt more or less to the lower control elements.
  • this adjustment can, of course, only be done imperfectly, since the adjusting elements, which are gradually offset with respect to one another, do not allow the thin cover knife or the film to be nestled perfectly. The consequence of this is that the color profile promoted does not correspond to the desired value or the position of the adjusting elements. As a further disadvantage, this embodiment also has an undefined influence on the respective neighboring zones, so that an exact and reproducible control of the color profile to be transferred to the inking unit cannot be assumed.
  • the object of the invention is to design a structured ink meter with its actuators so that a corresponding and thus reproducible color profile is achieved on the ink fountain roller by the position of the individual actuators, without the respective neighboring zones being undefined and in which a statically determined support the ink metering edge is reached.
  • the object is achieved according to the characterizing part of claim 1.
  • the advantage of the new design is that the ink knife is adjusted by the actuators relative to the ink fountain roller so that the resulting color profile corresponds to the respective position of the actuators, so that a reproducible control, z. B. can be carried out at any time via a given program.
  • the solution found prevents an uncontrolled influence on the neighboring zones and enables precise regulation by the precise support of the individual ink knife elements, the cover knife or the cover film being able to follow the respective profile shapes of the scraper edge without further ado.
  • the ink fountain roller 1 shown in Fig. 1 transfers the ink in a known manner Ink fountain rollers 2 on the plate cylinder, not shown.
  • the ink fountain roller 1 receives the ink from the ink supply 3 in the ink fountain 4.
  • ink knife elements 5 are used, which are arranged in close succession.
  • the ink knife members and the bottom of the ink fountain 4 are covered by a thin, elastic wiping film 6, which is hooked onto hook 7 in the upper region of the ink fountain.
  • the ink knife elements 5 are provided with a scraper edge 8, which is adjustable relative to the outer surface of the ink fountain roller 1, so that more or less ink can pass through in the area of the scraper edge between the wiping film 6 and the outer surface of the ink fountain roller 1. This enables sensitive ink quantity control on the ink fountain roller 1.
  • the wiping film 6 projects beyond the wiping edge 8 and lies tangentially on the ink fountain roller 1. In its projecting area 9, it is angled toward the ink fountain roller in order to return ink droplets that emerge in an uncontrolled manner to the surface of the ink fountain roller.
  • the protruding area is supported on a cover 11 by a soft elastic foam strip 10.
  • the squeegee 6 can, for. B. in the event of damage in a simple manner against a new film, so that the new condition can be produced with very little effort.
  • actuators 12 are provided which adjust the distance between the ink knife elements and the lateral surface of the ink fountain roller 1.
  • a cam lever 13 is provided, the cams 14 of which, when the lever is pivoted around the bearing 15, more or less adjust the ink knife elements 5, which are slidably attached to the ink fountain, to the ink fountain roller 1.
  • a uniform zero position is provided for all ink knife elements 5 at the top dead center of the cam 14.
  • a threaded bushing 16 is used, which is mounted on an adjusting spindle 17 and, when the same is rotated, pivots the cam lever 13 more or less via a connecting rod 18.
  • a stepping motor 19 is used to rotate the adjusting spindle 17, a potentiometer 20 indicating the respective position. This makes it easy to control the amount of color using a remote control.
  • each adjusting spindle 17 is provided with a handwheel 21.
  • FIG. 2 and 3 show the distribution of the individual ink knife members 5 and the cam levers 13 provided in the area of the joints of the ink knife members.
  • the individual ink knife members 5 are each provided with recesses 22 in the area of the butt surfaces, such that at the top there is a continuous web in the area of the scraper edge.
  • These recesses 22 thus allow each color measuring element to tilt without any lateral pressure being able to arise.
  • the cams 14 are also chamfered in a roof shape, so that they only support the ink knife members in the area of the joints directly next to the recesses. This means that there is no fear of an unwanted change in the setting even if the ink knife links tilt.
  • FIG. 4 shows ink knife elements 23, which are also slidably attached to the ink fountain 24 and are adjusted by an adjusting spindle 25 which can be moved in the longitudinal direction by means of a bevel 26 provided on the latter.
  • the bevel 26 is supported here on a sharp-edged support rail 27 which is attached to the ink fountain 24.
  • the adjusting spindle 25 is displaced longitudinally, the bevel 26 moves on the cutting edge 28 of the support rail and thus adjoins two adjacent ink knife elements 23 more or less with respect to the ink fountain roller 1.
  • Fig. 5 shows a similar structure, in which case the adjusting spindle 29 also has a bevel 30 which, when the adjusting spindle 29 is moved in the longitudinal direction via the bevel 30, more or less adjusts the ink knife members 23 relative to the ink fountain roller 1.
  • Fig. 6 shows a front view of the ink knife members 23 with the adjusting spindles 25, 29, it being clearly evident that the adjusting spindles act in the region of the joints of two adjacent ink knife members 23 and thereby, as shown, bring about an adjustment without tilting of the individual color knife links leads to an unwanted adjustment of the same. A misregistration can be seen in the section below in the deferred section.
  • This embodiment known from the prior art shows errors 31 which arise from the limited flexibility of the film 6 in the region of the separation points of the ink knife zones if these are set differently to the ink fountain roller 1. In practice, this means that less ink is transferred to the inking unit in this reset zone than is intended on the basis of the manipulated variable.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP83109519A 1982-10-23 1983-09-24 Vorrichtung zum zonenweisen Dosieren von Farbe auf der Farbkastenwalze eines Farbwerkes für Druckmaschinen Expired EP0107788B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3239259 1982-10-23
DE3239259A DE3239259C2 (de) 1982-10-23 1982-10-23 Vorrichtung zum zonenweisen Dosieren von Farbe auf der Farbkastenwalze eines Farbwerkes für Druckmaschinen

Publications (2)

Publication Number Publication Date
EP0107788A1 EP0107788A1 (de) 1984-05-09
EP0107788B1 true EP0107788B1 (de) 1985-08-21

Family

ID=6176413

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109519A Expired EP0107788B1 (de) 1982-10-23 1983-09-24 Vorrichtung zum zonenweisen Dosieren von Farbe auf der Farbkastenwalze eines Farbwerkes für Druckmaschinen

Country Status (4)

Country Link
US (1) US4502387A (enrdf_load_stackoverflow)
EP (1) EP0107788B1 (enrdf_load_stackoverflow)
JP (1) JPS5995146A (enrdf_load_stackoverflow)
DE (1) DE3239259C2 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400831C2 (de) * 1984-01-12 1986-03-06 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbkasten für eine Druckmaschine
US4638733A (en) * 1984-01-20 1987-01-27 Horst Rebhan Squeegee head for printing of bodies by the screen printing method
DE3424349C2 (de) 1984-07-03 1995-05-04 Heidelberger Druckmasch Ag Vorrichtung zur Erfassung der Stellung eines Stellelements einer Druckmaschine
DE3448415C2 (en) * 1984-07-03 1993-05-27 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De Printing machine setting drive state detecting system
FR2579136B1 (fr) * 1985-03-22 1988-03-11 Chambon Machines Encrier a segments doseurs regles individuellement pour une imprimeuse
JPS63122540A (ja) * 1986-11-12 1988-05-26 J P Ii Kk 印刷機のインキ壺装置
JP4932999B2 (ja) * 2000-04-26 2012-05-16 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 印刷機のインキ装置
DE102007029943A1 (de) * 2007-06-28 2009-01-02 Manroland Ag Feuchtwerk sowie Farbwerk eines Druckwerks einer Druckmaschine
DE102007049639A1 (de) * 2007-06-28 2009-01-02 Manroland Ag Farbwerk eines Druckwerks einer Druckmaschine
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
CN104191813B (zh) * 2014-09-12 2017-04-12 江阴市汇通包装机械有限公司 刮墨驱动装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1760573A (en) * 1926-11-15 1930-05-27 Wood Newspaper Mach Corp Page cut-off for ink fountains
US2283830A (en) * 1941-01-22 1942-05-19 Goss Printing Press Co Ltd Inking mechanism
DE2228625B2 (de) * 1972-06-13 1974-07-11 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Farbkasten für Druckmaschinen
DE2545737A1 (de) * 1975-10-11 1977-04-14 Frankenthal Ag Albert Farbmesser fuer die farbkastenwalze
DE2550720A1 (de) * 1975-11-12 1977-06-02 Roland Offsetmaschf Dosiervorrichtung an einem farbkasten
DE2648098C3 (de) * 1976-10-23 1984-01-05 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbkasten für Offset- oder Hochdruckmaschinen
US4170177A (en) * 1977-04-07 1979-10-09 Toshiba Kikai Kabushiki Kaisha Printing machine inking device with plurality of cam levers
DE2928125A1 (de) * 1979-07-12 1981-01-15 Heidelberger Druckmasch Ag Farbkasten fuer offset- oder hochdruckmaschinen
DE2937037C2 (de) * 1979-09-13 1984-01-26 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbdosiereinrichtung an einer Druckmaschine
DD152679A3 (de) * 1980-04-10 1981-12-09 Hans J Obering Fernverstellbare farbzonenschraube
DE3020306C2 (de) * 1980-05-29 1982-11-11 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbmesser für eine Farbkastenwalze von Druckmaschinen
DE3026666A1 (de) * 1980-06-19 1981-12-24 Color Metal AG, 8045 Zürich Farbdosiereinrichtung fuer druckmaschine
DE8100093U1 (de) * 1980-12-18 1981-07-23 Color Metal AG, 8045 Zürich Farbdosiereinrichtung

Also Published As

Publication number Publication date
JPS5995146A (ja) 1984-06-01
DE3239259A1 (de) 1984-04-26
EP0107788A1 (de) 1984-05-09
DE3239259C2 (de) 1985-04-11
US4502387A (en) 1985-03-05
JPH0358914B2 (enrdf_load_stackoverflow) 1991-09-06

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