EP0043089B1 - Auge d'encre pour recevoir de l'encre pour impression - Google Patents

Auge d'encre pour recevoir de l'encre pour impression Download PDF

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Publication number
EP0043089B1
EP0043089B1 EP81104852A EP81104852A EP0043089B1 EP 0043089 B1 EP0043089 B1 EP 0043089B1 EP 81104852 A EP81104852 A EP 81104852A EP 81104852 A EP81104852 A EP 81104852A EP 0043089 B1 EP0043089 B1 EP 0043089B1
Authority
EP
European Patent Office
Prior art keywords
ink
knife
strip
crosspiece
ink duct
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
EP81104852A
Other languages
German (de)
English (en)
Other versions
EP0043089A1 (fr
Inventor
Josef Hajek
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 EP0043089A1 publication Critical patent/EP0043089A1/fr
Application granted granted Critical
Publication of EP0043089B1 publication Critical patent/EP0043089B1/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
    • B41F31/02—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 receiving printing inks, consisting of side parts and a knife-carrying knife which can be pretensioned by ink zone screws to an ink fountain roller, and which runs along an ink fountain roller and on which the ink knife is clamped at its upper end.
  • a paint box of the type described above which, in addition to the usual ink zone adjusting screws, an adjusting device which extends over the entire width of the roller for simultaneous activation and deactivation of all ink zone adjusting screws for changing the color strength while maintaining the color profile and also one Override device for pressing the ink knife over the entire width of the roller to close the ink gap.
  • the bearings for these adjusting means are held stationary on the ink fountain, so that an enlargement of the ink gap beyond the maximum size specified by the adjusting device is only possible by an individual additional rotation of all ink zone adjustment screws.
  • the object of the invention is to further develop an ink fountain of the type specified at the outset in order to enable the same to be emptied without having to pivot the ink fountain itself with all of its adjusting devices for the color knife or to have to twist the ink fountain key.
  • a major advantage of the invention lies in the ability to completely pivot the bar attached to the ink fountain crossbar by simply loosening fasteners, so that the strongly pre-tensioned knife returns to its relaxed position and thereby releases a gap of the order of 1 to 2 cm, thereby releasing a rapid drain of the highly viscous printing ink located in the ink fountain is guaranteed, after which the ink fountain can be cleaned.
  • This is particularly advantageous in printing press inking units, where frequent color changes are required.
  • Another advantage is the possibility of cleaning only the edge of the ink knife, for which a partial swiveling of the bar is sufficient.
  • Another advantage is the possibility to use scale rings with stops and to remotely control the setting of the ink fountain keys using a servomotor on the swivel bar.
  • Another advantage is the use of multi-part ink boxes, since middle or inner sections, z. B. with four-plate-wide paint boxes, the two inner sections can be pivoted individually.
  • the ink fountain 1 shown in FIGS. 1 and 2 is arranged on an ink fountain roller 2 so that it forms the end of the ink fountain on the right-hand side (FIG. 1).
  • the ink fountain 1 is closed on both sides with side parts 3, on each of which a paint wiper 4 is arranged to prevent the paint from escaping.
  • An inclined ink fountain crossmember 5 virtually forms the back or the bottom part of the ink fountain.
  • the with viscous z. B. offset printing ink-filled ink fountain 1 can be covered by a cover plate 6, so that no objects can fall into the ink fountain 1 and this is largely protected from contamination.
  • the ink fountain 1 designed according to the invention has a swiveling lower part which comprises a bar 11.
  • a bar 11 In the bar 11 are a number of ink zone screws 12 out at a distance of about 40 mm.
  • the bar 11 is held on both sides by pivot bolts 13 which, as will be described in detail later, allows the bar 11 and thus the zone screws 12 arranged therein to be pivoted away.
  • the strip 12 is held on the ink fountain crossmember 5 by these knurled screws 14. By loosening the knurled screw 14, the bar 11 can be separated from the ink fountain cross member 5 and swivels downwards until it assumes the position 12 shown in broken lines and comes to rest at the point indicated by the arrow A.
  • each ink fountain bolt 12 carries a scale ring 15.
  • the advantage of this scale ring 15 is that in an extreme position or at a desired gap Ink fountain roller 2 of the ink fountain key 12 a definition of this position is possible by appropriate adjustment of the scale rings and fixation by means of a set screw 16.
  • the setting range of the ink fountain keys 12 is dimensioned such that the gap between the ink knife 10 and the ink fountain roller 12 also in the outermost, i.e. H. in the retracted position does not allow the viscous ink to escape significantly. If a complete adjustment of the ink knife 10 while overriding the ink fountain key setting values is required or desired, this adjustment can be achieved in the usual way by turning a knurled screw 17, the amount of movement of which can be adjusted by means of an adjusting ring 18.
  • the knurled screw 17 acts on a storage bar 19 which runs below the ink knife 10 in the vicinity of the ink fountain roller 2.
  • the ink knife 10 is thus moved upward by a value limited by the adjusting ring 18, which is dimensioned such that damage to the ink fountain roller surface is avoided, as a result of which the ink delivery can be stopped.
  • This gap now enables the viscous printing ink to flow off via a drop guard 20 into a collecting trough 21 arranged below the ink fountain roller 2.
  • the ink in the ink fountain 1 After the ink in the ink fountain 1 has drained away, it can be cleaned and filled with another ink. If only the ink knife edge is to be cleaned, a slight swiveling of the bar 11 is also sufficient.
  • the bar 11 is held on both sides by the pivot bolts 13, which can be arranged, for example, in bearings.
  • the pivot bolts 13 or the bearings receiving them are held on one side in a tab 22 connected to the ink fountain crossmember 5 and on the other side in a tab 23 connected to the bar 11.
  • the tabs can be secured by screws.
  • FIG. 3 shows a second exemplary embodiment in which the parts corresponding to those in FIG. 1 and described in detail are provided with the same reference numerals, but increased by 100.
  • the knurled screw 114 is on the front side in the embodiment according to FIG. that is, located on the opposite side of the ink fountain roller 102 from the ink fountain 101 at an easily accessible location.
  • the knurled screw 114 penetrates the ink fountain crossmember 105 and engages in a corresponding threaded hole in the strip 111, whereby the strip 111 can be fixed to the ink fountain crossmember 105.
  • the knurled screw 117 corresponding to the knurled screw 17 is also on the front of the ink fountain 101, i. H. also arranged at an easily accessible location and penetrates the ink fountain crossmember 105, so that the color storage bar 119, which is provided with a beveled edge, can be shifted to the left, so that the ink knife 110 is moved upwards, ie. H. can be pressed against the ink fountain roller 102.
  • a remotely controllable servo motor 126 is shown, which is fixed to the pivotable bar 111.
  • the servomotor 126 is able to move the ink zone screws 112 horizontally via gear wheels 127 and 128 in order to generate the desired ink profile on the ink fountain roller 102.
  • the bar tilts 111 pivoting downward about the pivot pin 113, whereby the ink knife 110 can free itself from its extreme position and forms a gap which is sufficiently large for the paint to flow off.
  • the ink knife 110 is pressed by the terminal block 107 against the ink box cross member 105 when the hexagon socket screw 108 is tightened.

Landscapes

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

Claims (9)

1. Encrier destiné à recevoir des encres d'impression, constitué par des parties latérales et par une traverse qui porte une lame pouvant être poussée avec précontrainte vers un cylindre d'encrier par des vis de zones d'encrage, qui est inclinée et s'étend le long d'un cylindre d'encrier, et sur laquelle la lame d'encrage est encastrée à son extrémité supérieure, caractérisé en ce que les vis (12,112), des zones d'encrage sont montées dans une barre (11, 111) séparée de la traverse (5), qui est montée pour pivoter par rapport à la traverse (5; 105) et peut être reliée rigidement à cette traverse par des éléments de fixation séparables (14; 114), à savoir de telle manière que, dans l'état fixé solidement de la barre (11; 111), les vis (12; 112) des zones d'encrage maintiennent la lame d'encrage élastique (10; 110), sur toute leur plage de réglage, à une distance convenablement réglable du cylindre (2; 102) de l'encrier, à laquelle l'écoulement de l'encre est arrêté tandis que, dans la position extrême de la barre, basculée vers le bas et écartée de la traverse 5, les vis (12; 112) des zones d'encrage libèrent la lame d'encrage (10; 110) de telle sorte que cette dernière, ainsi détendue, s'écarte du cylindre (2; 102) de l'encrier d'une distance qui laisse l'encre s'écouler de l'encrier (1).
2. Encrier selon la revendication 1, caractérisé en ce que la barre (11; 111) est montée sur des pattes (22) qui sont prévues sur la traverse (5; 105).
3. Encrier selon la revendication 1 ou 2, caractérisé en ce que, dans l'état mis en place, tendu, la lame d'encrage (10; 110) forme un angle d'environ 20° avec la traverse (5; 105).
4. Encrier selon l'une des revendications précédentes, caractérisé en ce que, dans l'état détendu de la lame d'encrage (10; 110), la fente existant entre cette lame et le cylindre (2; 102) de l'encrier est large d'au moins 10 mm.
5. Encrier selon l'une des revendications précédentes, caractérisé en ce que, sur les vis (12; 112) des zones d'encrage, sont fixées des bagues graduées (15) qui, dans l'état mis en place dans une position extrême ou pour une largeur désirée de la fente entre le cylindre (2; 102) de l'encrier et les vis de réglage des zones d'encrage (12; 112), peuvent être ajustées sur une valeur de départ qui définit cette fente.
6. Encrier selon l'une des revendications précédentes, caractérisé en ce que la traverse (105) et la barre (111) sont munies de trous filetés à travers lesquels les éléments de fixation, réalisés sous la forme de vis de fixation (114) peuvent être enfilés par le côté avant de la traverse (105).
7. Encrier selon l'une des revendications précédentes, caractérisé en ce que chaque vis de zone d'encrage (112) peut être réglée par un servo-moteur télécommandé (126) fixé à la barre (111).
8. Encrier selon l'une des revendications précédentes, équipé d'un dispositif de commande prioritaire pour la lame d'encrage, caractérisé en ce que le dispositif de commande prioritaire (17, 19; 117, 119) est également monté sur la barre (11; 111), dispositif au moyen duquel, dans l'état mis en place, la lame d'encrage (10) peut être serrée contre le cylindre (2; 102) de l'encrier pour interrompre la distribution d'encre et qui, dans la position de la barre basculée vers le bas, permet d'amener la lame d'encrage (10) dans sa position détendue.
9. Encrier selon l'une des revendications précédentes, caractérisé en ce qu'une cuvette réceptrice (21) est prévue au-dessous du cylindre (2) de l'encrier.
EP81104852A 1980-06-28 1981-06-23 Auge d'encre pour recevoir de l'encre pour impression Expired EP0043089B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3024557A DE3024557C2 (de) 1980-06-28 1980-06-28 Farbkasten zur Aufnahme von Offset-Druckfarbe
DE3024557 1980-06-28

Publications (2)

Publication Number Publication Date
EP0043089A1 EP0043089A1 (fr) 1982-01-06
EP0043089B1 true EP0043089B1 (fr) 1984-05-16

Family

ID=6105899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104852A Expired EP0043089B1 (fr) 1980-06-28 1981-06-23 Auge d'encre pour recevoir de l'encre pour impression

Country Status (4)

Country Link
US (1) US4406224A (fr)
EP (1) EP0043089B1 (fr)
JP (1) JPS5731574A (fr)
DE (1) DE3024557C2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527987B1 (fr) * 1982-06-04 1986-06-20 Creusot Loire Dispositif d'encrage a lame basse a cuvettes d'encrier amovibles
US5031533A (en) * 1989-10-13 1991-07-16 Am International, Inc. Adjustable ink fountain for duplicating machines
ES2140729T3 (es) * 1993-07-20 2000-03-01 Mar I Planning Inc Disposicion de entintado para prensas de impresion.
US5823110A (en) * 1993-07-20 1998-10-20 I Mar Planning Inc. Inking arrangement for printing presses
DE19525849A1 (de) * 1995-07-15 1997-01-16 Heidelberger Druckmasch Ag Farbkasten für Offset- oder Hochdruckmaschinen
WO1997014562A1 (fr) * 1995-10-19 1997-04-24 Sycolor Consulting Ag Couteau encreur pour rouleau d'encrier d'une imprimante
DE19912881C2 (de) * 1999-03-23 2001-02-22 Technotrans Ag Vorrichtung zur Versorgung eines Farbspeichers einer Druckmaschine mit Farbe
US6612238B2 (en) * 2000-04-26 2003-09-02 Heidelberger Druckmaschinen Ag Inking unit in a printing machine
DE10058560A1 (de) * 2000-11-24 2002-06-13 Voith Turbo Kg Elektrohydraulischer Stellantrieb
US6796231B2 (en) * 2002-09-20 2004-09-28 The Provident Group Shield for doctor blade holder
CN1325257C (zh) * 2004-01-08 2007-07-11 寿原株式会社 墨斗
DE102007023463B4 (de) 2007-05-19 2009-06-25 Koenig & Bauer Aktiengesellschaft Farbkasteneinsatz

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US375126A (en) * 1887-12-20 Ink-fountain for printing-presses
CA503372A (fr) * 1954-05-25 W. Ranger Arthur Presses d'impression
US1112412A (en) * 1914-07-16 1914-09-29 Plimpton Press Ink-supply for printing-presses.
US2351315A (en) * 1942-06-11 1944-06-13 Cottrell C B & Sons Co Ink fountain
DE816256C (de) * 1945-09-22 1951-10-08 Arthur Willard Ranger Einstellvorrichtung fuer das Farbmesser am Farbkasten fuer Druckmaschinen
US3186339A (en) * 1963-07-17 1965-06-01 Flynn & Emrich Company Fluid operated fountain blade
GB1203848A (en) * 1967-09-18 1970-09-03 Albert Schnellpressen Improvements in or relating to ink duct assemblies for printing presses
DE6607731U (de) * 1968-07-22 1971-04-08 Roto Werke Gmbh Vorrichtung zum zonenweisen einstellen eines an der farbwalze anliegenden farbmessers
GB1276324A (en) * 1968-08-24 1972-06-01 Ricoh Kk Improvements in and relating to inking mechanisms
US3958509A (en) * 1974-06-13 1976-05-25 Harris Corporation Image scan and ink control system

Also Published As

Publication number Publication date
DE3024557C2 (de) 1982-12-09
EP0043089A1 (fr) 1982-01-06
JPS5731574A (en) 1982-02-20
US4406224A (en) 1983-09-27
JPH0310508B2 (fr) 1991-02-13
DE3024557A1 (de) 1982-01-21

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