EP0116176B1 - Dispositif d'encrage - Google Patents

Dispositif d'encrage Download PDF

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Publication number
EP0116176B1
EP0116176B1 EP83113234A EP83113234A EP0116176B1 EP 0116176 B1 EP0116176 B1 EP 0116176B1 EP 83113234 A EP83113234 A EP 83113234A EP 83113234 A EP83113234 A EP 83113234A EP 0116176 B1 EP0116176 B1 EP 0116176B1
Authority
EP
European Patent Office
Prior art keywords
ink
roller
rollers
inking
inking unit
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
EP83113234A
Other languages
German (de)
English (en)
Other versions
EP0116176A2 (fr
EP0116176A3 (en
Inventor
Hermann Fischer
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
Publication of EP0116176A2 publication Critical patent/EP0116176A2/fr
Publication of EP0116176A3 publication Critical patent/EP0116176A3/de
Application granted granted Critical
Publication of EP0116176B1 publication Critical patent/EP0116176B1/fr
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
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/304—Arrangements for inking roller bearings, forks or supports
    • B41F31/308—Swinging bearings

Definitions

  • the invention relates to an inking unit for rotary printing presses, in which the ink can be fed from at least one applicator roller from an ink fountain roller via a downstream ink transport line which consists of a variable number of inking unit rollers arranged in series in the ink transport direction.
  • a siphon roller can either remove the ink from the ink fountain roller rotating at low speed or from an additional roller that can be adjusted to the ink fountain roller and then feed it to the other inking roller.
  • the additional roller should preferably rotate faster than the ink fountain roller in order to achieve ink rubbing between these two rollers, which is intended to eliminate undissolved ink particles.
  • the speed difference between the ink fountain roller and the lifter roller also means that the ink layer on the additional roller is thinner than on the ink fountain roller.
  • the time it takes for the lifter roller to attach to the ink fountain roller is shorter than the time it takes for the additional roller to move.
  • a thicker ink strip is therefore removed from the ink fountain roller, but this is shorter than the thinner ink strip that is removed from the additional roller.
  • the reduced thickness of the ink strip removed from the additional roller is compensated for by its longer length.
  • the lifter roller therefore supplies approximately the same amount of ink to the downstream inking unit rollers in both settings.
  • the invention has for its object to develop such an inking unit so that a change in the thickness range of the ink film to be delivered to the plate cylinder can be achieved without changing the ink knife setting.
  • the requirement for the thickness of the ink film supplied by an inking unit to be changeable arises in particular in inking units which are to be used both for offset printing and for dilitho printing. While a very thin layer of ink is desirable and usable in offset printing, dilitho printing requires a thicker layer of ink when printing papers that do not have a smooth surface. As a result of the elimination of the flexible rubber blanket and the printing directly from the hard plate, there is the disadvantage that thin layers of color do not reach all the depressions in the paper surface, so that the subject is not printed out completely.
  • the object is achieved by applying the features of the characterizing part of the claim.
  • the inking unit shown comprises an ink fountain roller 1 driven at low surface speed, against which an ink knife 2 can be adjusted more or less strongly.
  • the ink in the setting according to FIG. 2 is transferred from the ink fountain roller 1 via five inking rollers 3 to 7 to two applicator rollers 8, 9, which in turn deliver the ink to a plate on a plate cylinder 10.
  • the inking rollers 3, 5 and 7 expediently have a metallic, hard surface and are designed as a grater, that is to say they are arranged so as to change in the longitudinal direction.
  • levers 13, 14 which are pivotable about axles aligned with their axes are mounted, between the other ends of which the inking unit rollers 4 and 6 are rotatably mounted with their axle journals 15, 16.
  • the inking unit rollers 3, 5 and 7 are also expediently driven, at the same surface speed as the plate cylinder 10, while the inking unit rollers 4 and 6 and the application rollers 8 and 9 are carried along by friction.
  • Hydraulic cylinders 17, 18 with adjusting rods 19, 20, which are articulated on the levers 13, 14, are used to actuate the levers 13, 14.
  • levers 25, 26 are pivotably mounted by means of axle journals 23, 24, which are aligned with the axes of the additional inking unit rollers 21, 22.
  • Axle journals 27 of a further additional inking unit roller 28 are rotatably mounted on the levers 25, while the levers 26 serve to support the axle journals 29 of an additional inking unit roller 30.
  • the levers 25, 26 are in turn pivotable by means of hydraulic cylinders 31, 32 and adjusting rods 33, 34.
  • the ink is guided to the applicator rollers 8 and 9 via the inking unit rollers 3 to 7 which are connected to one another by the dash-dot line A.
  • the application rollers 8, 9 are fed a relatively thick ink film.
  • the inking unit can therefore be used in this setting for dilitho printing. This setting can also be used for offset printing when large contiguous areas are to be printed.
  • switching the additional inking unit rollers 21, 22, 28, 30 on or off initially changes the ink film thickness on the application rollers 8, 9 without adjusting the ink knife 2.
  • the ink knife 2 is therefore only used for fine adjustment of the ink film thickness within the thickness range preset by changing the number of rollers of the ink transport strand. It can thus be prevented that the printer tries to open the ink knife 2 to such an extent that the ink film thickness on the inking roller 3 rotating at a higher speed becomes so great that the ink squirts off.
  • the inking unit rollers 4 and 6 can be switched off from the inking unit roller 5 as shown in the exemplary embodiment, there is also the possibility of setting an intermediate position for a medium ink film thickness, for example by virtue of the fact that the inking unit roller 6 and the additional inking unit roller 30 assume the position shown in FIG. 1 while the Inking roller 4 and the additional inking roller 28 are left in the position shown in Fig. 2.
  • the invention is not restricted to the exemplary embodiment shown. Instead of interrupting the short ink transport strand at two points, it can also be interrupted at one or three points. There is also the possibility of switching on either one or more than two rollers, which are then to be arranged in series, in order to bridge the interruption points of the short ink transport strand.

Landscapes

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

Claims (1)

  1. Dispositif d'encrage pour presses rotatives d'imprimerie, dans lequel l'encre peut être amenée d'un rouleau d'encrier à au moins un rouleau toucheur par l'intermédiaire d'un train de transport de l'encre placé en aval du rouleau d'encrier et qui est composé d'un nombre variable de rouleaux d'encrage, disposés l'un à la suite de l'autre en série dans la direction du transport de l'encre, caractérisé en ce qu'au moins deux des rouleaux d'encrage (4, 5, 6) du train de transport de l'encre qui sont en contact constant dans une première position de réglage, sont agencés de façon à pouvoir être écartés l'un de l'autre dans une deuxième position de réglage et en ce que la fente ainsi obtenue peut être fermée par deux rouleaux d'encrage additionnels (21, 28 ; 22, 30).
EP83113234A 1983-02-05 1983-12-30 Dispositif d'encrage Expired EP0116176B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3303988 1983-02-05
DE19833303988 DE3303988A1 (de) 1983-02-05 1983-02-05 Farbwerk

Publications (3)

Publication Number Publication Date
EP0116176A2 EP0116176A2 (fr) 1984-08-22
EP0116176A3 EP0116176A3 (en) 1985-06-12
EP0116176B1 true EP0116176B1 (fr) 1987-09-09

Family

ID=6190144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83113234A Expired EP0116176B1 (fr) 1983-02-05 1983-12-30 Dispositif d'encrage

Country Status (4)

Country Link
US (1) US4520729A (fr)
EP (1) EP0116176B1 (fr)
JP (1) JPS59148666A (fr)
DE (2) DE3303988A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629081C1 (de) * 1986-08-27 1988-03-24 Roland Man Druckmasch Umstellbares Farbwerk einer Bogenrotationsdruckmaschine
FR2672545B1 (fr) * 1991-02-11 1997-01-17 Komori Chambon Dispositif d'encrage pour un appareil d'impression offset rotatif.
JPH05229101A (ja) * 1992-02-20 1993-09-07 Manabu Fukuda インキ装置
DE4245016B4 (de) * 1992-09-16 2005-09-08 Heidelberger Druckmaschinen Ag Farbwerk in einer Rotationsdruckmaschine
US6098542A (en) * 1999-02-17 2000-08-08 Heidelberger Druckmaschinen Ag Method and device for force loading a rubber blanket roller in a printing press
DE19956149A1 (de) * 1999-11-23 2001-06-07 Roland Man Druckmasch Farbwerk für eine Druckmaschine
DE50208517D1 (de) 2001-12-06 2006-11-30 Koenig & Bauer Ag Verfahren zum betrieb eines farbwerkes oder feuchtwerkes in einer druckmaschine
DE10209861B4 (de) * 2002-03-06 2012-10-04 manroland sheetfed GmbH Verfahren und Vorrichtung zur Farbzufuhrsteuerung
DE10255536B4 (de) 2002-11-28 2005-07-28 Audi Ag Antriebsanordnung mit hydraulisch gesteuertem Umschlingungsgetriebe sowie mit einem Differenzialgetriebe
DE10352616A1 (de) * 2003-07-11 2005-02-10 Koenig & Bauer Ag Druckwerk einer Druckmaschine
ITBO20030627A1 (it) * 2003-10-23 2005-04-24 Gd Spa Unita' di stampa di un nastro per una macchina automatica.
DE102008009889A1 (de) * 2008-02-19 2009-08-20 Manroland Ag Verfahren zum Einfärben einer Druckform in einer Verarbeitungsmaschine
DE102008010803A1 (de) * 2008-02-23 2009-08-27 Manroland Ag Verfahren zum Einfärben einer Druckform in einer Verarbeitungsmaschine
JP6114503B2 (ja) * 2012-04-26 2017-04-12 株式会社小森コーポレーション インキ供給方法およびインキ供給装置
CN104275921A (zh) * 2014-10-24 2015-01-14 合肥东彩印刷科技有限公司 一种辊式印刷设备

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703425B1 (de) * 1977-01-28 1978-03-30 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158474A (en) * 1937-03-18 1939-05-16 Gen Printing Ink Corp Inking arrangement for rotary printing presses
US2436455A (en) * 1944-03-08 1948-02-24 American Type Founders Inc Inking mechanism
US3150589A (en) * 1962-03-19 1964-09-29 Glen W Senogles Roller attachment for multilith printing press
DE2703424C2 (de) * 1977-01-28 1979-05-17 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Farbwerk für Offset-Druckmaschinen
DE2942689C2 (de) * 1979-10-23 1983-10-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Übertragen von Farbe in einem Farbwerk einer Offset-Rotationsdruckmaschine
DE3008980C2 (de) * 1980-03-08 1983-05-19 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Umstellbares Heber-/Filmfarbwerk
DD155408A1 (de) * 1980-12-17 1982-06-09 Siegfried Lindner Farbwerk fuer druckwerke von rollenrotationsdruckmaschinen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703425B1 (de) * 1977-01-28 1978-03-30 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen

Also Published As

Publication number Publication date
EP0116176A2 (fr) 1984-08-22
DE3373439D1 (en) 1987-10-15
DE3303988A1 (de) 1984-09-13
EP0116176A3 (en) 1985-06-12
JPS59148666A (ja) 1984-08-25
US4520729A (en) 1985-06-04

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