EP0657282A1 - Dispositif d'encrage - Google Patents

Dispositif d'encrage Download PDF

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Publication number
EP0657282A1
EP0657282A1 EP94118809A EP94118809A EP0657282A1 EP 0657282 A1 EP0657282 A1 EP 0657282A1 EP 94118809 A EP94118809 A EP 94118809A EP 94118809 A EP94118809 A EP 94118809A EP 0657282 A1 EP0657282 A1 EP 0657282A1
Authority
EP
European Patent Office
Prior art keywords
ink
forme cylinder
printing
nozzles
cylinder
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.)
Granted
Application number
EP94118809A
Other languages
German (de)
English (en)
Other versions
EP0657282B1 (fr
Inventor
Werner Blim
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
Albert Frankenthal AG
Koenig and Bauer Albert 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 Albert Frankenthal AG, Koenig and Bauer Albert AG filed Critical Albert Frankenthal AG
Publication of EP0657282A1 publication Critical patent/EP0657282A1/fr
Application granted granted Critical
Publication of EP0657282B1 publication Critical patent/EP0657282B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/02—Cleaning arrangements or devices for forme cylinders

Definitions

  • the invention relates to a device using fast-drying printing ink in a forme cylinder according to the preamble of claim 1.
  • a printing unit for performing a flying change of a text or image impression a so-called imprinter
  • two forme cylinders are provided, which can optionally be adjusted to an impression cylinder guiding the paper web.
  • An inking roller which supplies the printing plates of the forme cylinder with ink, can be adjusted to the forme cylinder in operation.
  • a hard screened roller is used as the inking roller, which works against soft printing forms applied to the forme cylinder.
  • a disadvantage of this printing unit is that when using fast-drying printing ink, the residual ink remaining on the printing plates of the forme cylinder after the printing process dries up quickly and a dried ink layer is built up, which also accepts the newly applied printing ink, so that this leads to a loss in quality during printing leads.
  • the invention has for its object to provide a device using fast drying printing ink in forme cylinders, with the premature drying of the ink on the printing plates of a forme cylinder immediately after the current printing process is avoided.
  • an impression cylinder 3 is mounted, around which a paper web 4 coming from a printing unit is guided and forwarded.
  • the impression cylinder 3 rotates counterclockwise.
  • one of two side frame-fixed forme cylinders 7, 8 is adjustable, z. B. by means of eccentric bushings, not shown.
  • Each of the forme cylinders 7, 8 is provided with at least one pressure plate 9, 11.
  • the printing plate 9, 11 consists of a flexible material, as is known to be used in the flexographic printing process.
  • Below the forme cylinder 7, 8 is a hard, screened inking roller 12, 13, z. B. anilox roller side frame fixed and z. B.
  • inking rollers 12, 13 are each arranged by an ink supply device arranged below the inking roller 12, 13, e.g. B. chamber doctor blade 14, 16 supplied with printing ink.
  • the excess printing ink is collected by the inking roller 12, 13 in a trough 17, 18 after doctoring Returns 20, 24, and fed back to the respective chamber doctor blade 14, 16 via separate storage containers, not shown.
  • the inking roller 12, 13 is connected to the respective forme cylinder 7, 8. It is also possible to arrange the forme cylinders 7, 8 in a non-pivoting manner and instead to mount the impression cylinder 3 in a pivotable manner on the forme cylinder 7 or 8, for. B. by swinging.
  • the troughs 17, 18 are accommodated in a base frame 19, which in the middle has a support 21 which separates the troughs 17, 18 and extends in the axial direction and is limited in height below the axes of rotation 22, 23 and above the inking rollers 12, 13 .
  • the side frames 1, 2 are positively connected by means of reinforcements 25, 26, 27, 28, which extend in the axis-parallel direction, extend parallel to one another and are spaced apart from one another, which in turn can be positively connected by further reinforcements, also not shown, which also run vertically.
  • This scaffold is on the outside with sheets, for. B. made of stainless steel, so that a housing around the aforementioned cylinders and plates.
  • the paper web 4 and the forme cylinder 8 have the necessary slots 33, 34 made in the housing, designated overall by 32.
  • the support 21 extends in the axial direction of the cylinders in the direction of both side frames 1, 2.
  • the support 21 carries at its end remote from the base frame still further, arranged in the direction of the contact or pressure line between the impression cylinder 3 and the forme cylinder 7 and 8 respectively Covers 53, 54 so that the forme cylinder 7 with its ink transfer device 12, 14 and the forme cylinder 8 with its ink transfer device 13, 16 are each housed separately in the housing 32.
  • nozzles 36, 37 and 38, 39 fixed to the housing on both End faces 30, 35 of the housing 32 are arranged so that they radiate in the axial direction of the forme cylinders 7, 8.
  • the first, visible end face of the housing 32 is designated by 30.
  • the second, invisible end face of the housing 32 is designated 35.
  • Each nozzle 36 to 39 has a supply 41 for compressed air and a supply 42 for solvents, which of not shown systems are supplied.
  • the visible nozzles 36, 37 and the invisible nozzles likewise arranged on the second end face 35 have different jet widths, so that, for. B. the nozzle 36 can cover an area up to a quarter of the axial length and the nozzle 37 an area between a quarter and half of the axial length of the forme cylinder 7 depending on the pressure.
  • This ink transfer zone 40, 45 can run both linearly and in strips in the axial direction (FIG. 1).
  • the chambered doctor blade 14, 16 can each be arranged below the inking roller 12, 13.
  • the ink transfer device can also consist of a known inking roller which dips into an ink pan and which transfers the printing ink to a forme cylinder 7, 8 or the gravure printing ink onto a dye which also dips into the ink pan Gravure form cylinder distributed.
  • a separate known doctor device is provided.
  • the method of operation is as follows: the paper web 4 is guided around the counter-pressure cylinder 3 rotating counterclockwise and has contact with the printing plate 11 of the forme cylinder 8 in the region of the printing line 31, which can also be strip-shaped (FIG. 1). After the printing plate 11 has given the ink to the paper web 4, the printing plate 11 of the clockwise rotating forme cylinder 8 receives a precipitate from a color solvent-air mixture, e.g. B. a toluene-air mixture from the nozzles 38, 39 or from the opposite arranged on the front side 35 two invisible nozzles, so that a quick drying of the ink not removed from the paper web 4 on the printing plate 11 of the forme cylinder 8 avoided becomes.
  • a color solvent-air mixture e.g. B. a toluene-air mixture from the nozzles 38, 39 or from the opposite arranged on the front side 35 two invisible nozzles
  • the nozzles 38, 39 operate simultaneously with the forme cylinder 8 and the nozzles 36, 37 operate simultaneously with the forme cylinder 7. This also applies accordingly to the second nozzle pairs, not shown.
  • the aforementioned nozzles each radiate into a space 51, 52 which, viewed in the direction of rotation of the forme cylinders 7, 8, begins after the pressure line 29, 31 and is formed between the housing 32 and the outer surface of the forme cylinder 7, 8 and which is at the most at the ink transfer zone 40, 45 of the forme cylinder 7, 8 with the color transfer device 12, 14; 13, 16 ends.
  • each case it is also possible in each case to provide a plurality of nozzles arranged next to one another in the axial direction and directed towards the forme cylinders 7, 8 in the radial direction behind the pressure lines 29, 31, which nozzles can be designed as so-called flat jet nozzles. H. that these nozzles each spray a strip-shaped area.
  • the forme cylinders 7, 8 or inking rollers 12, 13 accommodated in the housing 32 are expediently accessible in the axial direction on the side remote from the cross member by means of pivotable covers 43, 44, 46, 47. In the closed state, these covers 43, 44, 46, 47 can be locked. Upper covers of the housing 32 are designated 48, 49 in total.
  • the side frames 1, 2 also provide forms part of the cover 32.
  • the solvent can also consist of water or alcohol.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
EP94118809A 1993-12-06 1994-11-30 Dispositif d'encrage Expired - Lifetime EP0657282B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4341534 1993-12-06
DE4341534A DE4341534C2 (de) 1993-12-06 1993-12-06 Farbwerk für eine Rollenrotationsdruckmaschine

Publications (2)

Publication Number Publication Date
EP0657282A1 true EP0657282A1 (fr) 1995-06-14
EP0657282B1 EP0657282B1 (fr) 1998-04-15

Family

ID=6504290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118809A Expired - Lifetime EP0657282B1 (fr) 1993-12-06 1994-11-30 Dispositif d'encrage

Country Status (4)

Country Link
US (1) US5503069A (fr)
EP (1) EP0657282B1 (fr)
JP (1) JP2564107B2 (fr)
DE (2) DE4341534C2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7114447B2 (en) * 2002-03-20 2006-10-03 Comexi, S.A. Flexographic printer with enclosures at a regulated temperature and vapor extraction
US6739256B1 (en) * 2002-05-17 2004-05-25 Umetani Mfg. Co., Ltd. Method of ink agitation by ink aspiration
JP6912155B2 (ja) * 2014-10-20 2021-07-28 三菱重工機械システム株式会社 フレキソ印刷機および製函機
DE102017222700A1 (de) * 2017-07-17 2019-01-17 Heidelberger Druckmaschinen Ag Druckmaschine mit Zwillingsdruckwerk und Verfahren zum Betreiben einer solchen Druckmaschine
CN109454976A (zh) * 2018-12-30 2019-03-12 杨立旭 印刷装置及其使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545381A (en) * 1968-02-20 1970-12-08 Procter & Gamble Method of cleaning printing surfaces after printing soft tissue paper
EP0234456A2 (fr) * 1986-02-17 1987-09-02 OFFICINE MECCANICHE GIOVANNI CERUTTI S.p.A. Dispositif d'impression complémentaire
JPS63116851A (ja) * 1986-11-05 1988-05-21 Matsushita Electric Ind Co Ltd フレキソ印刷機

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1837702A (en) * 1929-12-14 1931-12-22 Melville W Canfield Apparatus for applying inking materials
US2377089A (en) * 1941-07-15 1945-05-29 Crowell Collier Publishing Com Intaglio printing press
US3022907A (en) * 1959-05-26 1962-02-27 Burroughs Corp Item handling apparatus
US3090302A (en) * 1961-03-15 1963-05-21 Burroughs Corp Inking mechanism for printing apparatus
US3090092A (en) * 1961-04-13 1963-05-21 Jerome C Szemplak Double release safety buckle
US3896730A (en) * 1974-02-22 1975-07-29 Koppers Co Inc Wash-up system for flexographic printers
DE3151005C2 (de) * 1981-12-23 1986-03-13 Friedrich 4000 Düsseldorf Körner Tiefdruckmaschine
FR2520295B1 (fr) * 1982-01-26 1986-05-09 Herve Fils Sa Perfectionnements aux rotatives d'impression d'un support mince defilant de facon continue
DE3220537C2 (de) * 1982-06-01 1984-07-19 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung für Lackiereinrichtungen
US4426412A (en) * 1982-09-13 1984-01-17 Consolidated Papers, Inc. Edge dam for paper coating apparatus and method
DE3313219C2 (de) * 1983-04-13 1985-04-18 Metronic Gerätebau GmbH & Co, 8702 Veitshöchheim Druckeinheit für eine Rotationsdruckmaschine
US5012736A (en) * 1987-09-21 1991-05-07 Paper Converting Machine Company Sealing assembly for liquid fountain
DE3823340C2 (de) * 1988-07-09 1995-12-07 Fischer & Krecke Gmbh & Co Kammerrakel für Rotations-Druckmaschinen
US5184556A (en) * 1992-02-18 1993-02-09 Paper Converting Machine Company Printing apparatus and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3545381A (en) * 1968-02-20 1970-12-08 Procter & Gamble Method of cleaning printing surfaces after printing soft tissue paper
EP0234456A2 (fr) * 1986-02-17 1987-09-02 OFFICINE MECCANICHE GIOVANNI CERUTTI S.p.A. Dispositif d'impression complémentaire
JPS63116851A (ja) * 1986-11-05 1988-05-21 Matsushita Electric Ind Co Ltd フレキソ印刷機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 360 (M - 746) 27 September 1988 (1988-09-27) *

Also Published As

Publication number Publication date
JPH07195656A (ja) 1995-08-01
DE59405709D1 (de) 1998-05-20
US5503069A (en) 1996-04-02
DE4341534A1 (de) 1995-06-08
JP2564107B2 (ja) 1996-12-18
DE4341534C2 (de) 1996-07-18
EP0657282B1 (fr) 1998-04-15

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