EP0114236B1 - Vorrichtung für die Zufuhr eines flüssigen Mediums, insbesondere viskosen Druckfarben auf Walzen von bogen- und rollenverarbeitenden Maschinen - Google Patents

Vorrichtung für die Zufuhr eines flüssigen Mediums, insbesondere viskosen Druckfarben auf Walzen von bogen- und rollenverarbeitenden Maschinen Download PDF

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Publication number
EP0114236B1
EP0114236B1 EP83111487A EP83111487A EP0114236B1 EP 0114236 B1 EP0114236 B1 EP 0114236B1 EP 83111487 A EP83111487 A EP 83111487A EP 83111487 A EP83111487 A EP 83111487A EP 0114236 B1 EP0114236 B1 EP 0114236B1
Authority
EP
European Patent Office
Prior art keywords
medium
roller
feed roller
distributor
distributor plate
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
EP83111487A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0114236A3 (en
EP0114236A2 (de
Inventor
Johannes Schubert
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT83111487T priority Critical patent/ATE30305T1/de
Publication of EP0114236A2 publication Critical patent/EP0114236A2/de
Publication of EP0114236A3 publication Critical patent/EP0114236A3/de
Application granted granted Critical
Publication of EP0114236B1 publication Critical patent/EP0114236B1/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

Definitions

  • the invention relates to a device for supplying a liquid medium, in particular viscous printing inks, on rollers of sheet and roll processing machines, the medium in a device being brought to a pressure above atmospheric pressure and the medium emerging in the area of a device exposed to atmospheric pressure. wherein the medium is pressed onto a distribution plate on which a feed roller rolls, which pre-distributes the medium, mixes it, homogenizes it and then transfers it to the further printing unit.
  • a device of this type is known from US-A3407729. This device is complex and not sufficient in leveling.
  • offset printing can only achieve high print quality if the ink and water flow is precisely adjusted and monitored, i.e. remains constant. This applies equally to the printing and printing.
  • the interplay of ink and water must be adjustable without great time dependence.
  • zone-by-zone regulation of the color application by means of a color knife, slide and actuating cylinder is known. It is always difficult to regulate the smallest amounts of paint at the point of contact between the ductor and the gap-forming element or paint slide or an actuating cylinder, especially when a zero amount is required. A knife then runs hard on the doctor and grinds itself. A paint slider that is set correctly has no contact with the ductor, but the smallest amount of ink that then passes between the edge of the slide and the ductor can still be too much to supply the ink.
  • DE-A-1 954 316 describes a method and a device for loading rollers in printing units of printing presses with a liquid medium, e.g. B. color and for dosing the medium become known.
  • the object is to prevent the high economic losses which arise in the known methods and devices for dispensing paint or damp liquid.
  • the medium in question should be dispensed to the printing unit in a precisely metered manner according to the actual need. Furthermore, it should be possible, in a simple manner and with little economic outlay, to transfer the dampening liquid from one color to another in the same printing unit or, in the case of reversible printing units, at the most favorable point.
  • the object of the invention is to provide a device which also enables the metering of very small amounts of paint with good reproducibility for repeat jobs, whereby a metered amount of paint is optimally evened out and any thermal and wear-dependent gap formation when metering paint is avoided .
  • the medium is pressed in the smallest quantities, which can still be safely dosed, through openings in a grater plate.
  • the medium is metered continuously by opening and closing the valve. By changing the stroke frequency of the valve, the amount of color is changed.
  • the impulses for opening and closing can be digitized.
  • the digital impulses are easily reproducible and do not falsify.
  • a single control of the zonal nozzles is partially possible, depending on the needs of the respective print image.
  • the openings can be slit-like or round in shape, depending on the viscosity of the medium to be pumped.
  • the valve timing can also be coupled . are with the machine speed.
  • the lift cycle can be changed.
  • a rolling feed roller homogenizes the medium over the grater plate and distributes it in advance and mixes it circumferentially on the grater plate.
  • the medium is accelerated from speed 0 to its maximum speed in a particularly simple and uniform manner.
  • the ink metering between the ink supply and the distribution plate to the distribution roller is made possible without sensitive gaps.
  • the short connection between the ink reservoir and nozzles and the closed system prevent the paint from drying out.
  • stirring or mixing devices for mixing the paint can be dispensed with.
  • the ink fountain washing is also omitted in a particularly advantageous manner at the end of the shift.
  • the washing process can be carried out by clamping the hoses onto the nozzles, or special nozzles are provided next to the application nozzles. ,
  • the inherently unfavorable reciprocating reciprocating movement of the lifter becomes a simple, controllable and adjustable rotational movement. Different speeds of rotation between the doctor roller and the distributor roller, which have to be compensated by the lifter, are eliminated. This eliminates the time-consuming drive of the jack.
  • the guide to which the transfer roller is attached can be controlled continuously or discontinuously, depending on the problem. I.e. the length of the transferred color strip, which is transferred to the distributor roller, can optionally be changed, depending on how long the rotation of the guide is interrupted and the supply roller of the distributor roller remains on.
  • the transfer of ink quantity from the ink supply to the distribution roller can be selected differently by changing the speed at a continuous speed of the guide.
  • the nozzles or valves can be arranged on pressure hoses or a rake-like pressure tube.
  • FIG. 5 shows another embodiment of the medium conditioning in the form of a valve 12.1.
  • the valve 12.1 is controlled by an eccentric 16, which acts on an insertable plate 21.
  • the plate 21 transmits the control signal of the eccentric 16 to a valve tappet 17 which compresses the medium 1 in the interior of the valve 12.1, the ball seal of a feed 15.1 being closed and the second ball seal being opened in the area of the distributor plate 3.
  • the valve lifter 17 is moved back by means of a spring 18 upon further rotation of the eccentric 16, both balls being sucked in by the medium 1 in the opposite direction, ie the ball in the direction of the feed 15.1 opens the feed 15.1 and the ball in the direction of the.
  • the grating plate 3 closes the valve 12.1. If the plate 21 is removed, then no stroke is generated via the eccentric 16 on the valve 12.1.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Coating Apparatus (AREA)
EP83111487A 1983-01-21 1983-11-17 Vorrichtung für die Zufuhr eines flüssigen Mediums, insbesondere viskosen Druckfarben auf Walzen von bogen- und rollenverarbeitenden Maschinen Expired EP0114236B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83111487T ATE30305T1 (de) 1983-01-21 1983-11-17 Vorrichtung fuer die zufuhr eines fluessigen mediums, insbesondere viskosen druckfarben auf walzen von bogen- und rollenverarbeitenden maschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3301909A DE3301909C1 (de) 1983-01-21 1983-01-21 Vorrichtung fuer die Zufuhr eines fluessigen Mediums,insbesondere viskosen Druckfarben auf Walzen von bogen- und rollenverarbeitenden Maschinen
DE3301909 1983-01-21

Publications (3)

Publication Number Publication Date
EP0114236A2 EP0114236A2 (de) 1984-08-01
EP0114236A3 EP0114236A3 (en) 1985-05-29
EP0114236B1 true EP0114236B1 (de) 1987-10-21

Family

ID=6188824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111487A Expired EP0114236B1 (de) 1983-01-21 1983-11-17 Vorrichtung für die Zufuhr eines flüssigen Mediums, insbesondere viskosen Druckfarben auf Walzen von bogen- und rollenverarbeitenden Maschinen

Country Status (5)

Country Link
US (1) US4535692A (ja)
EP (1) EP0114236B1 (ja)
JP (1) JPS59187856A (ja)
AT (1) ATE30305T1 (ja)
DE (1) DE3301909C1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338790C2 (de) * 1983-10-26 1986-03-20 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zur Dosierung der Zufuhr eines flüssigen Mediums auf Walzen von Druckmaschinen
DE19820432A1 (de) 1998-05-07 1999-11-11 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zum Aufbringen eines Auftragsmediums auf einen laufenden Untergrund
DE19859436B4 (de) * 1998-12-22 2009-12-24 Heidelberger Druckmaschinen Ag Digitale Farbdosierung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047506A2 (de) * 1980-09-10 1982-03-17 Koenig & Bauer Aktiengesellschaft Verfahren und Steuervorrichtung zum Anzeigen von Einstellwerten bei Farbkästen bzw. Feuchtwerken von Rotationsdruckmaschinen

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20556A (en) * 1858-06-15 Improvement in hand printing-presses
US18795A (en) * 1857-12-01 James s
US20217A (en) * 1858-05-11 Self-inking hand-stamp
US18947A (en) * 1857-12-29 Jmprovement in hand-stamps
DE248530C (ja) *
US651397A (en) * 1899-09-25 1900-06-12 Latimer H Studebaker Apparatus for printing lists.
US745668A (en) * 1903-07-15 1903-12-01 Troy Laundry Machinery Co Ltd Ink-fountain.
US956083A (en) * 1909-02-15 1910-04-26 Allen P Harland Ink-supplying means for printing-presses.
US1137400A (en) * 1913-01-15 1915-04-27 Dick Co Ab Inking device for rotary duplicators.
FR476256A (fr) * 1913-10-24 1915-07-22 R Hoe & C Perfectionnements apportés aux mécanismes encreurs des machines à imprimer
US1567207A (en) * 1924-12-18 1925-12-29 John J Sullivan Inking attachment for bed and platen job-printing presses
US1717737A (en) * 1927-03-15 1929-06-18 Berliner Maschb Ag Vormals L S Inking apparatus for printing machines
US1696770A (en) * 1927-05-27 1928-12-25 Charles F Lang Printing press
US1965596A (en) * 1931-08-22 1934-07-10 Kline William Ink feeder for printing presses, etc.
GB475669A (en) * 1936-06-12 1937-11-24 Tom Taylor Improvements in or relating to printing machines
US3150589A (en) * 1962-03-19 1964-09-29 Glen W Senogles Roller attachment for multilith printing press
US3407729A (en) * 1966-08-17 1968-10-29 Stach Benedict Inkflow control for a printing press
DE1954316A1 (de) * 1969-10-29 1971-05-19 Schluckebier Wilhelm Verfahren und Einrichtung zum Beschicken von Walzen in Druckwerken von Druckmaschinen mit einem fluessigen Medium,z.B. Farbe,und zum Dosieren des Mediums

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0047506A2 (de) * 1980-09-10 1982-03-17 Koenig & Bauer Aktiengesellschaft Verfahren und Steuervorrichtung zum Anzeigen von Einstellwerten bei Farbkästen bzw. Feuchtwerken von Rotationsdruckmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Buch von Oskar Frei "Rollenoffset" Polygrafverlag, 1979, S.22,23 *

Also Published As

Publication number Publication date
EP0114236A3 (en) 1985-05-29
EP0114236A2 (de) 1984-08-01
US4535692A (en) 1985-08-20
JPS59187856A (ja) 1984-10-25
DE3301909C1 (de) 1984-10-18
ATE30305T1 (de) 1987-11-15

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