EP0049370B1 - Farbkasten für Druckmaschinen - Google Patents

Farbkasten für Druckmaschinen Download PDF

Info

Publication number
EP0049370B1
EP0049370B1 EP81106932A EP81106932A EP0049370B1 EP 0049370 B1 EP0049370 B1 EP 0049370B1 EP 81106932 A EP81106932 A EP 81106932A EP 81106932 A EP81106932 A EP 81106932A EP 0049370 B1 EP0049370 B1 EP 0049370B1
Authority
EP
European Patent Office
Prior art keywords
ink
ink fountain
metering elements
fountain
ink metering
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
EP81106932A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0049370A1 (de
Inventor
Erich Georg Wieland
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0049370A1 publication Critical patent/EP0049370A1/de
Application granted granted Critical
Publication of EP0049370B1 publication Critical patent/EP0049370B1/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
    • 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

Definitions

  • the invention relates to an ink fountain according to the preamble of claim 1.
  • Ink fountains for printing machines are generally known. From DE-OS 28 14 889 an ink fountain is known which contains an ink fountain roller that comes into contact with printing ink and a plurality of laterally arranged side by side, in the longitudinal direction of the circumferential surface of the ink roller, in direct contact with each other, held in the bottom of the ink fountain, swiveling ink metering elements, which are positively connected to a swivel lever, a controllable mechanism being provided in order to be able to set a gap formed from the individual ink metering elements and the surface of the ink fountain roller.
  • the ink guide surfaces of the ink fountain base and ink metering elements are always at an angle which is slightly above 90 °, which makes cleaning the ink fountain difficult.
  • a base plate of an ink fountain base scrapes printing ink off the ink guide surface of the ink metering element when the ink metering element moves in the direction of “more ink”, experience has shown that it cannot be avoided that ink particles get under the base plate and negatively influence the smoothness of the ink metering element.
  • the invention has for its object to provide a device that allows to keep tightly close to each other, pivotable ink metering elements of an ink fountain of a printing machine continuously smoothly.
  • ink metering elements which are not or difficult to move.
  • the ink metering elements can be easily moved, especially when using stepper motors as adjusting motors for the pivotable ink metering elements. If the smoothness of the ink metering elements is guaranteed, feedback of the actual value of the position of the ink metering elements can be dispensed with.
  • an ink fountain floor 2 is provided, the inner bottom surface 3 of which is covered with printing ink when the ink fountain 1 is filled with a printing ink.
  • a ceramic-coated ink fountain roller 4 which is driven in a known manner, is immersed in the ink fountain 1. It forms a paint passage gap with a paint metering attachment 5 of a paint metering element 6.
  • the ink fountain base 2 expediently extends as an extension of the base surface 3 beyond the ink metering elements 6 as an end piece 7 with the end surface 8.
  • a longitudinal pit 9 is worked into the ink fountain base 2 from the lifting surface 3.
  • a left-hand guide surface 12 of the longitudinal pit 9 collides with the base surface 3 at an angle a, which is preferably less than 90 °, but can also be 90 °.
  • An edge created at a collision point between the left guide surface 12 and the base surface 3 serves as a pivoting edge (line) 21 for the ink metering elements 6.
  • a right guide surface 11 runs parallel to the left guide surface 12 of the longitudinal pit 9, a base surface 10 of the longitudinal pit 9 runs at a distance « a and parallel to the bottom surface 3 of the ink fountain base 2.
  • Vertical openings 13 in the ink fountain base 2 open into the base surface 10 of the longitudinal pit 9 and extend over an entire length «b of the ink fountain base 2 covered with ink metering elements 6 at a distance of z. B. 30 mm apart.
  • a cross section of the openings 13 is so large that a pivot arm 17 which is positively connected to the horizontally extending ink metering element 6 can be moved sufficiently.
  • the swivel arm 17 carries out a preselectable swivel movement. For this purpose, it is provided in its lower part with an elongated hole 18 into which a crank pin 19 driven by an electric motor engages.
  • a swivel edge 21 of the swivel arm 17 lies on an intersection of the guide surface 12 with the bottom surface 3 of the ink fountain base 2.
  • the swivel edge 21 for the swivel arm 17 is also the swivel edge for the ink metering element 6.
  • the bottom surface 3 of the ink fountain base 2 sits in a paint guide surface 22 Color metering element 6 continues without a groove or increase the transition between the two surfaces 3; 22 bothers.
  • the ink guide surface 22 first takes a straight course, which then merges into a concave curvature which ends in an ink metering attachment 5.
  • a vertical surface 24 of the ink metering element 6 forms with its ink guide surface 22 an angle ⁇ of approximately 90 ° and ends in a first support shoulder 26.
  • the support shoulder 26 projects approximately 1 mm beyond a curved rear surface 27 of the ink metering element 6.
  • a neck 28 of the swivel arm 17 opens into this rear surface 27.
  • the rear surface 27 ends in a second support lug 29. While the first support lug 26 is supported on the base 10, the second support lug 29 is supported on the right guide surface 11 of the longitudinal pit 9.
  • the support lugs 26, 29 each preferably extend over an entire length “c of the ink metering element 6 and form an angle y of approximately 80 ° with one another.
  • the support lugs 26, 29 can have a rectangular cross-section, their support surfaces 14, 15 as end faces should be as narrow as possible.
  • the support lugs 26, 29 can also be designed in the form of a cutting edge, with a straight face or with a round face.
  • An expansion bore 30 is made centrally to each opening 13 from the side facing away from the bottom surface 3 of the ink fountain 1.
  • a flat bore base 31 of the extension bore 30 forms a force application surface for a conical compression spring 32, which is attached to the pivot arm 17. It is clamped between the abutment surface - the bottom of the bore 31 - and the ends of a pin 33 projecting over the cross section of the pivot arm 17 and positively connected to the pivot arm 17.
  • the two support lugs 26, 29 and thus the ink metering element 6 are pressed against the by the compression spring 32 Base 10 or the right guide surface 11 of the longitudinal groove 9 drawn.
  • the vertical surface 24 of the ink metering element 6 is provided with an axially parallel groove 39, which extends over the entire length “c of the ink metering element 6, approximately 1 mm from the ink guide surface 22. It serves to receive an elastic sealing cord 41, for. B. rectangular cross-section.
  • the sealing cord 41 extends in one piece over the entire length “b”. It is chosen in its dimensions so that the left guide surface 12 of the ink fountain base 2 is securely sealed against the vertical surface 24 of the ink metering element 6 in each operating position of the ink metering elements 6.
  • Paint metering element 6 and two side end plates 49, 50 delimited, sealed from the outside, extending over the entire length cc b lubricant chamber 43 is completely with a lubricant, for. B. fat, filled out. This prevents printing ink or dirt from entering the lubricant chamber 43 and impairing the smooth operation of the ink metering elements 6.
  • each color metering element 6 is provided with a through hole 44 in its center. It ends on both end faces 45, 46 in a lubrication channel 47, 48. These each run within the area boundary of the end faces 45, 46 and are approximately 10 mm long, 2 mm wide and 0.5 mm deep.
  • patent protection is applied for for an ink fountain for a printing press with an ink fountain roller that dips into the ink fountain and a large number of individually operable ink metering elements arranged laterally close together in an ink fountain floor, each of which is provided with a pivotable swivel arm.
  • the ink metering elements form a changeable ink metering gap with a peripheral surface of the ink fountain roller, characterized in that a longitudinal pit (9) with a parallelogram-shaped cross-section parallel to the ink fountain roller (4) is machined into a ink fountain base (2) with a bottom surface (3) of an ink fountain (1) that a base surface (10) of the longitudinal pit (9) runs parallel to the base surface (3) of the ink fountain base (2), that a left guide surface (12) and the base surface (3) have a swivel edge (21) for their side by side at their collision edge Form dosing elements (6) and egg NEN angle (a), which is ⁇ 90 °, that a right guide surface (11) is provided in the longitudinal pit (9) that with the guide surfaces (12, 11) a circumference or parts of the circumference (26, 29) Color metering elements (6) arranged in the longitudinal pit (9) are in contact.
  • patent protection is claimed for a method for maintaining the smoothness of ink metering elements of a ink fountain of a printing press, several individually adjustable ink metering elements being arranged close to one another, characterized in that a longitudinal bore (44) in the ink metering elements (6) a lubricant is pressed between the face ends (45, 46) of immediately adjacent ink metering elements (6) and a device for carrying out the method, wherein the ink metering elements (6) are provided with a continuous longitudinal bore (44) that the longitudinal bores (44) all Color metering elements (6) are connected.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP81106932A 1980-09-10 1981-09-04 Farbkasten für Druckmaschinen Expired EP0049370B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3033996 1980-09-10
DE3033996A DE3033996C2 (de) 1980-09-10 1980-09-10 Farbkasten für Druckmaschinen

Publications (2)

Publication Number Publication Date
EP0049370A1 EP0049370A1 (de) 1982-04-14
EP0049370B1 true EP0049370B1 (de) 1984-11-28

Family

ID=6111551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106932A Expired EP0049370B1 (de) 1980-09-10 1981-09-04 Farbkasten für Druckmaschinen

Country Status (4)

Country Link
US (1) US4392427A (enrdf_load_stackoverflow)
EP (1) EP0049370B1 (enrdf_load_stackoverflow)
JP (1) JPS5777578A (enrdf_load_stackoverflow)
DE (1) DE3033996C2 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9107635U1 (de) * 1991-06-21 1991-08-08 MAN Roland Druckmaschinen AG, 6050 Offenbach Abdeckung für einen Farbkasten, insbesondere mit einem Zungenfarbmesser
DE4125253C2 (de) * 1991-07-31 1995-04-13 Roland Man Druckmasch Farbkasten eines Farbwerks einer Druckmaschine mit einem Farbmesser
DE4416281C1 (de) * 1994-05-07 1995-11-02 Herberts Gmbh Bindemittelzusammensetzung, daraus erstellte Überzugsmittel und deren Verwendung zur Lackierung
DE50201888D1 (de) * 2002-02-08 2005-02-03 Fischer & Krecke Gmbh & Co Dichtung für Kammerrakel
EP1334830B1 (de) 2002-02-08 2004-11-17 Fischer & Krecke Gmbh & Co. Dichtung für Kammerrakel

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2230126B2 (de) * 1972-06-21 1974-06-12 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Dosiervorrichtung eines Farbkastens an Druckmaschinen
DE2460116C3 (de) * 1974-12-19 1979-09-06 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbkasten für Druckmaschinen
US4000695A (en) * 1975-10-16 1977-01-04 Frank Perretta Ink fountain blade assembly
US4058058A (en) * 1976-02-26 1977-11-15 George Hantscho Company, Inc. Ink fountain for printing presses
US4170177A (en) * 1977-04-07 1979-10-09 Toshiba Kikai Kabushiki Kaisha Printing machine inking device with plurality of cam levers
DE3024453C1 (de) * 1980-06-28 1981-12-24 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbkasten im Farbwerken von Druckmaschinen

Also Published As

Publication number Publication date
EP0049370A1 (de) 1982-04-14
DE3033996A1 (de) 1982-04-22
US4392427A (en) 1983-07-12
JPS5777578A (en) 1982-05-14
DE3033996C2 (de) 1984-03-08
JPH0329591B2 (enrdf_load_stackoverflow) 1991-04-24

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