EP0425432B1 - Stellmechanismus für in Zonen aufgeteilte Rakel - Google Patents

Stellmechanismus für in Zonen aufgeteilte Rakel Download PDF

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Publication number
EP0425432B1
EP0425432B1 EP90810771A EP90810771A EP0425432B1 EP 0425432 B1 EP0425432 B1 EP 0425432B1 EP 90810771 A EP90810771 A EP 90810771A EP 90810771 A EP90810771 A EP 90810771A EP 0425432 B1 EP0425432 B1 EP 0425432B1
Authority
EP
European Patent Office
Prior art keywords
meters
zone
screw
adjusting
adjusting mechanism
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
EP90810771A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0425432A3 (en
EP0425432A2 (de
Inventor
Patric Albiez
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0425432A2 publication Critical patent/EP0425432A2/de
Publication of EP0425432A3 publication Critical patent/EP0425432A3/de
Application granted granted Critical
Publication of EP0425432B1 publication Critical patent/EP0425432B1/de
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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/47—Automatic or remote control of metering blade position

Definitions

  • the present invention relates to an adjusting mechanism for the zone-wise adjustment of doctor blades used in printing machines, in particular offset printing machines.
  • a squeegee of the small to medium-sized offset printing machines depending on the size, 16 to 50 set screws have to be adjusted.
  • This setting process takes place for the first time when setting up the new offset printing press and must be set again for each print and / or each new printing ink.
  • This process is controlled by printing on paper and measuring the color thickness with the densitometer. Then the squeegee is readjusted and measured again, how the color strength has been adjusted according to the densitometer and the squeegee is readjusted etc. This process can be repeated many times and is extremely time-consuming.
  • the high-precision setting requires a finely adjustable delivery of the set screws.
  • a corresponding solution is known for example from DE-A-2'435'321.
  • DE-A-24'35'321 proposes the rigid connection of set screws with the squeegee. This does not, however, eliminate the influence of the zones lying next to each other and the setting therefore always requires subsequent corrections.
  • US-A-3'559'573 and US-A-4'372'207 show a completely different way.
  • a special cross-beam is used, in which a large number of slides next to each other allow individual ink supply in each zone.
  • the actual doctor blade is no longer on the duct roller, but only serves to seal the ink fountain. This leads to an exact adjustability, but at the price of a considerably more complex solution.
  • the present invention has for its object to provide an adjusting mechanism, with the help of the repeated adjustment process, time and paper can be saved, which can be attached to a machine's own cross-beam and combines the advantages of the known systems of adjusting mechanisms.
  • FIG. 1 the doctor blade can be seen, which is divided into zone-forming tongues by incisions perpendicular to its longitudinal direction.
  • the zone subdivision of the squeegee 1 facilitates the adjustment of the ink supply, because the adjustment in one area of the squeegee does not lead to forces which cause the squeegee to deform in adjacent areas.
  • Through holes 5 are provided in the cross-beam 3 of the printing press, which is already provided on the machine side, and are aligned with the individual zones of the doctor blade 1.
  • Each bore 5 has an enlarged area 51 which merges into a slightly tapered area with an internal thread 52.
  • a set screw 6 is accommodated in each hole.
  • the set screw 6 is in two parts. she consists from a zone screw 61 and a pressure bolt 62.
  • the zone screw 61 has a long, thin shaft 63 which merges in the direction of the doctor blade into a thickened region 64 in which a blind hole with a thread is made.
  • the pressure bolt 62 which has an external thread 66 at its end facing away from the doctor blade 1, is screwed into the blind hole with an internal thread 65.
  • the pressure pin 62 has a form-fitting head 67 which rests positively on the squeegee 1 and which slidably but non-rotatably rests with respect to the squeegee 1.
  • the zone screw 61 has on its thickened area 64 an external thread 68 which meshes with the internal thread 52 of the through hole 5 in the cross-beam 3.
  • the pitches of the external thread 68 of the zone screw 61 and the external thread 66 of the pressure bolt 62 are different. From this it follows automatically that per revolution on the long shaft 63 of the zone screw 61, the pressure pin 62 will only move by the difference in the pitches of the two so-called threads relative to the squeegee 1. This enables an extremely precise setting of, for example, a tenth of a millimeter per revolution or less to be achieved.
  • a counter clock 8 is plugged onto the end of the thin shaft 63.
  • Such counters are available on the market as potentiometer indicators.
  • the counter clock has a housing 81 in which a gear and a driver counter is accommodated.
  • the status of the driver counter can be read directly on the display 82.
  • Each complete turn of the knob 83 rotates the driver counter one position.
  • a reducer could also be accommodated in the counter 8, but this should not be necessary.
  • Each counter clock could be connected to the crossbar 3 of the printing press by appropriate fixation. However, this would be complex and would make the subsequent retrofitting of a printing press with the actuating mechanism according to the invention more expensive and complicated. Since each set screw is already connected to the crossbar 3 and the counters are placed on these set screws, it is sufficient to secure the counters against each other against rotation. According to the invention, this is done in the simplest form by displacing the counter housing 81 across the housing 81 with a horizontal slot designed as a vertical fit or a through hole 84. Now slide parallel to the crossbar through all slots or Bores 84 in the counter clocks 8 a rod, preferably a steel rod 85, so all counter clocks 8 are secured against rotation relative to one another.
  • the steel rod 85 should be fitted with a snug fit in the bores 84 in the housings 81.

Landscapes

  • Screen Printers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP90810771A 1989-10-23 1990-10-09 Stellmechanismus für in Zonen aufgeteilte Rakel Expired - Lifetime EP0425432B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3815/89 1989-10-23
CH3815/89A CH679919A5 (enrdf_load_stackoverflow) 1989-10-23 1989-10-23

Publications (3)

Publication Number Publication Date
EP0425432A2 EP0425432A2 (de) 1991-05-02
EP0425432A3 EP0425432A3 (en) 1991-08-07
EP0425432B1 true EP0425432B1 (de) 1994-06-29

Family

ID=4264062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810771A Expired - Lifetime EP0425432B1 (de) 1989-10-23 1990-10-09 Stellmechanismus für in Zonen aufgeteilte Rakel

Country Status (5)

Country Link
US (1) US5052297A (enrdf_load_stackoverflow)
EP (1) EP0425432B1 (enrdf_load_stackoverflow)
JP (1) JPH03153355A (enrdf_load_stackoverflow)
CH (1) CH679919A5 (enrdf_load_stackoverflow)
DE (1) DE59006304D1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6112661A (en) * 1996-09-25 2000-09-05 Albiez; Patric Ink knife duct-adjusting screw unit for an ink fountain in a printing press
US6681698B2 (en) 2001-05-17 2004-01-27 Veslatec Oy Ink blade adjusting mechanism having shape memory material actuator
WO2004113077A1 (de) 2003-06-20 2004-12-29 Ap Maschinen Ag Dosiervorrichtung an einem farbkasten

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117389C2 (de) * 1991-05-28 2002-06-27 Koenig & Bauer Ag Farbzuführeinrichtung an einer Druckmaschine
DE4242744C2 (de) * 1992-12-17 2001-05-10 Heidelberger Druckmasch Ag Stelleinrichtung am Farbkasten von Offset- oder Hochdruckmaschinen
US6139635A (en) * 1994-07-08 2000-10-31 Measurex Devron Inc. Backing bar for coat weight control system
US5738724A (en) * 1996-08-06 1998-04-14 Westvaco Corporation Actuator assembly for coater blade load adjustment
US6561092B1 (en) * 2000-09-22 2003-05-13 Steven R. Surbrook Ink flow adjustment device for printing presses
DE102006062980B3 (de) * 2005-12-12 2021-07-29 Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg Detektor zur Schließpunkterfassung im Farbkasten
FR2895310B1 (fr) * 2005-12-23 2009-04-17 Goss Int Montataire Sa Dispositif d'encrage et procede d'ajustement correspondant
JP2009000884A (ja) * 2007-06-21 2009-01-08 Komori Corp 印刷機の印刷品質管理方法及び装置
CN103465622B (zh) * 2013-09-29 2015-02-04 李付军 一种印刷机上分区控制供墨装置
US20150128821A1 (en) * 2013-11-13 2015-05-14 Stolle Machinery Company, Llc Fountain blade assembly for can decorator machine ink station assembly
CN103963447A (zh) * 2014-05-07 2014-08-06 湖北京山轻工机械股份有限公司 用于瓦楞纸板印刷线上的刮墨装置
DE102018003919A1 (de) * 2018-05-16 2019-11-21 Giesecke+Devrient Currency Technology Gmbh Rakel für eine Siebdruckmaschine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607315A (en) * 1951-03-29 1952-08-19 Aids Dev Co Inc Control means for ink fountains
US3559573A (en) * 1968-08-12 1971-02-02 Hantscho Co George Ink fountain assembly and blade adjusting means therefor
US3898931A (en) * 1974-02-20 1975-08-12 Polygraph Leipzig Doctor blade multiple-point control
DE2435321A1 (de) * 1974-07-23 1976-02-12 Roland Piter Einrichtung zur verstellung des farbmessers an druckmaschinen
DE2703425B1 (de) * 1977-01-28 1978-03-30 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen
US4193345A (en) * 1977-04-01 1980-03-18 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Device for adjustment of the ink flow on printing press inking units
JPS5565558A (en) * 1978-11-09 1980-05-17 Komori Printing Mach Co Ltd Remote-controlling apparatus for inkwell screw at printing machine
DE2942007A1 (de) * 1979-10-17 1981-04-30 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk fuer eine offset-rotationsdruckmaschine
DE3025980C2 (de) * 1980-07-09 1984-01-12 Miller-Johannisberg Druckmaschinen Gmbh, 6200 Wiesbaden Vorrichtung zum Verstellen des Farbmessers bei Druckmaschinen-Farbwerken
US4372207A (en) * 1981-03-10 1983-02-08 Komori Printing Machinery Co., Ltd. Ink fountain devices for use in printing press
DE3238912C1 (de) * 1982-10-21 1984-03-15 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum zonenweisen Abtasten der Einfaerbung eines Plattenzylinders einer Rotations-Offsetdruckmaschine
US4510867A (en) * 1983-12-07 1985-04-16 Veb Kombinat Polygraph "Werner Lamberz" Leipzig Control system for ink zone adjusters
JPS633955A (ja) * 1986-06-24 1988-01-08 Toshiba Mach Co Ltd 印刷機におけるインキ出し装置
DE3728672A1 (de) * 1986-09-11 1988-03-31 Jpe Kk Farbkastenvorrichtung fuer eine druckmaschine
JPH0796293B2 (ja) * 1986-12-29 1995-10-18 東芝精機株式会社 印刷機のインク供給量調整装置
DE3826383A1 (de) * 1988-08-03 1990-02-08 Roland Man Druckmasch System zur bereichsauswahl am bedienungspult einer druckmaschine, insbesondere einer offset-rotationsdruckmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6112661A (en) * 1996-09-25 2000-09-05 Albiez; Patric Ink knife duct-adjusting screw unit for an ink fountain in a printing press
US6681698B2 (en) 2001-05-17 2004-01-27 Veslatec Oy Ink blade adjusting mechanism having shape memory material actuator
WO2004113077A1 (de) 2003-06-20 2004-12-29 Ap Maschinen Ag Dosiervorrichtung an einem farbkasten

Also Published As

Publication number Publication date
EP0425432A3 (en) 1991-08-07
US5052297A (en) 1991-10-01
DE59006304D1 (de) 1994-08-04
CH679919A5 (enrdf_load_stackoverflow) 1992-05-15
JPH03153355A (ja) 1991-07-01
EP0425432A2 (de) 1991-05-02

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