EP0845354B1 - Bac à encre pour presses rotatives - Google Patents

Bac à encre pour presses rotatives Download PDF

Info

Publication number
EP0845354B1
EP0845354B1 EP97117682A EP97117682A EP0845354B1 EP 0845354 B1 EP0845354 B1 EP 0845354B1 EP 97117682 A EP97117682 A EP 97117682A EP 97117682 A EP97117682 A EP 97117682A EP 0845354 B1 EP0845354 B1 EP 0845354B1
Authority
EP
European Patent Office
Prior art keywords
ink
ink fountain
metering
support areas
fountain roller
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 - Lifetime
Application number
EP97117682A
Other languages
German (de)
English (en)
Other versions
EP0845354A2 (fr
EP0845354A3 (fr
Inventor
Bernhard Roskosch
Michael Dr. Voge
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 EP0845354A2 publication Critical patent/EP0845354A2/fr
Publication of EP0845354A3 publication Critical patent/EP0845354A3/fr
Application granted granted Critical
Publication of EP0845354B1 publication Critical patent/EP0845354B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 for rotary printing presses with a Color metering device, which consists of a large number of closely arranged zone-wide dosing elements, each of which has two support areas and one has between these dosing area, the support areas below Spring pressure of compression springs on an ink fountain roller constantly or indirectly by turning the dosing elements to different dosing ranges
  • Color gap thicknesses are adjustable, according to the preamble of claim 1.
  • each metering element is a metering knife assigned that extends over the length of the metering element. This is intended to be an axial Spreading the color can be achieved according to the dosing range, so that this over the entire zone width is evenly distributed.
  • the Dosing elements under a constant spring pressure which during operation of the machine, d. H. when the ink fountain roller rotates, the metering elements wear out covering foil can lead.
  • the spring pressure is dimensioned so that it through the rotational movement of the ink fountain roller overcomes occurring hydrodynamic pressure and a safe direct or indirect contact of the metering elements on the lateral surface of the Ink fountain roller guaranteed.
  • the object is achieved by a color box with the features of Claim 1 solved.
  • the dosing elements of this color box start in the area the color gap thickness 0 a flattening that runs as a secant and in the area of Ink gap thickness 0 forms a scraping edge.
  • This Scraper edge is achieved that the occurring hydrodynamic pressure significantly is lower and that can be reduced according to the required spring pressure. This minimizes signs of wear on the film and at the same time a significantly lower heat development in the area of the color is achieved.
  • An advantageous embodiment of the invention is characterized in that the Flattening extends over the length of the dosing area. This will help The zero position of a dosing element does not increase the hydrodynamic pressure.
  • a further advantageous embodiment of the invention is characterized in that the support areas directly or indirectly on the ink fountain roller a radius of about 3 mm. Due to this small radius, the wedge effect between Dosing element and lateral surface of the ink fountain roller reduced, so that at the same time the hydrodynamic pressure can be reduced. With this, too Reduce spring pressure and thus wear on the film.
  • the ink fountain 1 consists essentially of a base plate 2 and the Side walls 3 which close off the color space at the end.
  • the ink fountain 1 is one Ink fountain roller 4 assigned that the required amount of ink to the inking unit Rotary press feeds.
  • Above the base plate 2 are next to each other Pressure bars 5 are provided, on which the ink metering device 6 is arranged.
  • the Pressure bars 5 and the ink metering devices 6 are in close succession over the length of the Color box 1 arranged side by side.
  • the pressure bars 5 are supported here Compression springs 7 and are held loose by screws 8.
  • the pressure bars 5 and the Ink metering devices 6 are covered by a film 9 which is contaminated by the ink 10 prevented.
  • the color metering device 6 consists of a large number of closely adjacent one another arranged zone-wide metering elements 11, each via an actuating arm 12, a Handlebar 13 and an adjusting nut 14 can be pivoted.
  • the adjusting nut 14 leaves move in the longitudinal direction via an adjusting screw 15, the drive of the Set screw via an actuator 16 is carried out.
  • each metering element 11 has z. B. two narrow support areas 17, between which an eccentric Dosing area 18 is provided.
  • an eccentric Dosing area 18 is provided.
  • the dosing element 11 is in its Played zero position, d. H. Support area 17 and metering area 18 are located on one level so that there is no color gap. In this position the Color 10 hydrodynamic pressure highest.
  • a flattening 20 is provided in this area, which as a secant under a certain angle ⁇ . This forms on the dosing element 11 in the area the ink gap thickness 0 a wiping edge 21 over which the elastic film 9 is placed.
  • the scraper edge 21 is the color of the outer surface 19 of the Ink fountain roller 4 removed without a high back pressure of the printing ink 10 can. This makes it possible to design the compression spring 7 accordingly, so that the Spring pressure on the metering element 11 and thus against the lateral surface 19 of the Ink fountain roller 4 is reduced.
  • the flattening 20 can extend over the length of the Dosing area 18 extend so that the support areas are circular can. It is also possible to thereby increase the back pressure of the printing ink 10 reduce that the metering element 11 is designed so that the directly or indirectly the ink fountain roller 4 adjacent support areas 17 a radius r of about 3 mm exhibit. This also makes it possible to reduce the jamming angle for the printing ink 10, so that the contact pressure on the lateral surface 19 of the ink fountain roller 4 is reduced and wear of the film 9 or heating can be reduced.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (3)

  1. Encrier (1) pour machines à imprimer rotatives, comprenant un dispositif (6) de dosage de l'encre qui est composé d'une pluralité d'éléments de dosage (11) ayant la largeur des zones, étroitement juxtaposés entre eux, dont chacun présente deux régions d'appui (17) et une région de dosage (18) située entre celles-ci, les régions d'appui (17) étant appuyées en permanence, directement ou indirectement, contre un rouleau d'encrier (4) sous la pression élastique de ressorts de compression (7), et les régions de dosage (18) pouvant être réglées sur différentes épaisseurs de fentes d'encre par une rotation des éléments de dosage (11),
       caractérisé
       en ce que les éléments de dosage (11) présentent, en commençant dans la région de l'épaisseur de fente d'encrage 0, un méplat (20) qui s'étend selon une sécante et forme une arête de raclage (21) dans la région de l'épaisseur de fente d'encre 0.
  2. Encrier selon la revendication 1,
       caractérisé
       en ce que le méplat (20) s'étend sur une longueur de la région de dosage (18), de sorte que les régions d'appui (17) sont de forme circulaire.
  3. Encrier selon la revendication 1,
       caractérisé
       en ce que les régions d'appui (17) qui s'appuient directement ou indirectement contre le rouleau d'encrier (4) ont un rayon r d'environ 3 mm.
EP97117682A 1996-11-28 1997-10-13 Bac à encre pour presses rotatives Expired - Lifetime EP0845354B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19649318A DE19649318A1 (de) 1996-11-28 1996-11-28 Farbkasten für Rotationsdruckmaschinen
DE19649318 1996-11-28

Publications (3)

Publication Number Publication Date
EP0845354A2 EP0845354A2 (fr) 1998-06-03
EP0845354A3 EP0845354A3 (fr) 1999-02-10
EP0845354B1 true EP0845354B1 (fr) 2001-07-11

Family

ID=7813023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117682A Expired - Lifetime EP0845354B1 (fr) 1996-11-28 1997-10-13 Bac à encre pour presses rotatives

Country Status (4)

Country Link
US (1) US6012389A (fr)
EP (1) EP0845354B1 (fr)
JP (1) JP4436465B2 (fr)
DE (2) DE19649318A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19914179A1 (de) * 1998-04-23 1999-11-11 Heidelberger Druckmasch Ag Vorrichtung zur Farbdosierung in einer Druckmaschine
DE19826810A1 (de) * 1998-06-16 1999-12-23 Koenig & Bauer Ag Verfahren und Einrichtung zur Farbzufuhr
US6802255B2 (en) 2002-12-09 2004-10-12 Color Control Corp. Ink fountain mechanism
US7178461B2 (en) * 2002-12-09 2007-02-20 Color Control Corp. Ink fountain assembly with non-tilt cheeks and liner replacement mechanism
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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2648098C3 (de) * 1976-10-23 1984-01-05 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbkasten für 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
DE3324950C2 (de) * 1983-07-11 1986-04-03 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbdosiereinrichtung für eine Druckmaschine

Also Published As

Publication number Publication date
EP0845354A2 (fr) 1998-06-03
EP0845354A3 (fr) 1999-02-10
US6012389A (en) 2000-01-11
JPH10157074A (ja) 1998-06-16
DE59704007D1 (de) 2001-08-16
DE19649318A1 (de) 1998-06-04
JP4436465B2 (ja) 2010-03-24

Similar Documents

Publication Publication Date Title
DE2803386C2 (fr)
CH620864A5 (fr)
EP0453910B1 (fr) Chambre de racle
DE2923678C2 (de) Farbkasten mit einzelnen, jeweils über die gesamte Zonenbreite reichenden Farbdosiereinrichtungen
EP0116176B1 (fr) Dispositif d'encrage
DE4203940A1 (de) Vorrichtung zur ermittlung der kontaktposition zweier walzen mit parallelen achsen
DE1816028C3 (de) Vorrichtung zum Kräuseln von synthetischen Fadenscharen
CH626005A5 (en) Ink duct for offset or letterpress printing machines
DE4213660C2 (de) Kurzfarbwerk für eine Rollenrotationsdruckmaschine
EP0602431A1 (fr) Dispositif de racle d'essuyage
EP0512267B1 (fr) Laminoir
DE3225378A1 (de) Farbwerk
DE3125434A1 (de) Vorrichtung zum zufuehren von farbe an die druckplatte einer druckmaschine
DE10132156B4 (de) Bahnstabilisierung zur berührungslosen Bahnführung bei fliegend wechselbaren Druckeinheiten
DE2814889B2 (de) Vorrichtung zur fernsteuerbaren Einstellung zonenbreiter Dosierelemente eines Farbkastens
EP0845354A2 (fr) Bac à encre pour presses rotatives
DE3713433A1 (de) Einrichtung zum entfernen von schmutzteilchen vom plattenzylinder einer offsetdruckmaschine
EP0131103B1 (fr) Dispositif d'encrage pour machines d'impression typographique et machines d'impression offset
DE3423735C1 (de) Farbkasten fuer Rotationsdruckmaschinen mit einer Farbdosiereinrichtung
EP0115301A2 (fr) Encrier pour encre courte
DE3637460C2 (fr)
DE904150C (de) Walzvorrichtung, insbesondere Florquetsche
DE3938447A1 (de) Farbwerk mit zonaler dosierung der farbmenge
DE10103842A1 (de) Farbwerk in einer Druckmaschine
DE4419881A1 (de) Zylindereinrichtung zum Bewegen von Fasermaterial in einer Kämmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19971013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE FR LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;RO;SI

17Q First examination report despatched

Effective date: 19990813

AKX Designation fees paid

Free format text: BE CH DE FR LI

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59704007

Country of ref document: DE

Date of ref document: 20010816

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021017

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20021021

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20021029

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031031

BERE Be: lapsed

Owner name: *HEIDELBERGER DRUCKMASCHINEN A.G.

Effective date: 20031031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20121211

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59704007

Country of ref document: DE

Effective date: 20140501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140501