EP0407708A2 - Dispositif d'encrage court sans zones d'encrage - Google Patents

Dispositif d'encrage court sans zones d'encrage Download PDF

Info

Publication number
EP0407708A2
EP0407708A2 EP90109317A EP90109317A EP0407708A2 EP 0407708 A2 EP0407708 A2 EP 0407708A2 EP 90109317 A EP90109317 A EP 90109317A EP 90109317 A EP90109317 A EP 90109317A EP 0407708 A2 EP0407708 A2 EP 0407708A2
Authority
EP
European Patent Office
Prior art keywords
roller
film
ink
metering
application
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.)
Withdrawn
Application number
EP90109317A
Other languages
German (de)
English (en)
Other versions
EP0407708A3 (en
Inventor
Heinz Keller
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.)
Ferd Rueesch Ag
Original Assignee
Ferd Rueesch 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 Ferd Rueesch Ag filed Critical Ferd Rueesch Ag
Publication of EP0407708A2 publication Critical patent/EP0407708A2/fr
Publication of EP0407708A3 publication Critical patent/EP0407708A3/de
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers

Definitions

  • the invention relates to an ink zone-free, shortened inking unit for rotary printing units, preferably for printing UV inks, according to the preamble of patent claim 1.
  • the invention has for its object to provide an ink zone-free inking unit for a rotary printing press, in which no stenciling occurs, and in which the ink film thickness can be metered delicately, without complex measures of ink metering by zone screws and a large number of rollers to produce a consistent ink film on the applicator roller are necessary even after a long period of operation.
  • the advantages that can be achieved with the invention are, in particular, that the determination of the thickness of the ink film is based solely on the back calculation of the desired ink film thickness on the printing material on a single control, namely the metering gap setting between the film roller and metering roller, while all other parameters such as roller speed and the like remain unchanged during the printing process .
  • Another advantage results from the reduction in the number of film nip points and the flexing forces occurring there, and the use of rollers which are exposed to considerable thermal expansion due to the heating of the ink by flexing. This also reduces the change in color viscosity and creates stable operating conditions overall.
  • the invention is described below using an exemplary embodiment shown in the schematic drawing in FIG. 1.
  • the inking unit exists from an ink fountain 1, a film roller 2, a metering roller 3 for transferring a primary ink stream, the axis of which can be set against the film roller 2 to change the metering gap 4, an application roller 5, a friction roller 6 for transferring a secondary ink stream, a transfer roller 7 and a smoothing roller 8 Furthermore, a color return device is provided, which in the exemplary embodiment is a spiral roller 9, which returns excess ink, which comes from the ink flow reaction from the application roller 5, to the ink fountain 1.
  • the inking unit works in a known manner with co-rotating and counter-rotating rollers that have different speeds.
  • the metering roller 3 running in the same direction as the film roller runs counter to the direction of rotation of the application roller 5.
  • the film roller 2 which preferably has a large diameter compared to the metering roller, preferably rotates slowly in order to avoid excessive flexing of the ink in the ink fountain.
  • the flexing work of the paint can advantageously be further restricted in that the downwardly inclined paint box 1 is provided with an aperture 10 on which the ink knife 11 is arranged.
  • the metering roller 3 preferably rotates much more slowly than the film roller in order to largely avoid the generation of frictional heat on the opposing application roller 5.
  • the application roller 5 with a diameter which is considerably larger than that of the metering roller rotates at a considerably higher speed than the metering roller 3. As a result, the primary ink stream transferred from the metering roller is greatly stretched.
  • a secondary ink stream is passed through the transfer roller 7 from the film roller onto the friction roller 6 and from it onto the application roller 5.
  • the starting point for the calculation of the rotational speeds of the rollers involved is the controllability of a uniform metering gap 4.
  • stable metering gap ratios of up to 15 m ⁇ can be mastered due to their roundness and low heat coefficients.
  • the continuous ink supply is determined by the peripheral speed of the film roller 2 with the ink knife 11 set to maximum ink consumption.
  • the ink supply must be adjusted so that a bead of paint forms in front of the metering gap.
  • the splitting of the ink flow can be controlled as desired, so that the major part of the ink flow is guided from the metering roller 3 to the opposing application roller 5.
  • the resultant, almost homogeneous ink film is completely homogenized by the transfer of the secondary ink stream from the rubbing roller 6, which smooths the ink film at the same time, and the subsequent smoothing roller 8, and is transferred from the application roller 5 to the printing cylinder, not shown.
  • a metering gap setting of 100 m ⁇ results in an ink application of approximately 2.03 m ⁇ on the printing substrate.
  • the back calculation shows that small changes in the ink layer thickness on the substrate can be made by a relatively large change in the metering gap setting, that is, relatively coarse adjustments of the metering gap enable finest changes in the ink layer thickness on the substrate.
  • the scraped-off ink is taken over by a spiral roller 9, which runs counter to the metering roller 3 and is provided with two spirals or screw flights extending from the inside to the outside, from the ink bead which arises before the gap between the application roller 5 and the metering roller 3 and is conveyed to the outside, where it is taken from two outer rings of the film roller 2, the diameter of which is larger than that of the film roller 2, and returned to the ink fountain by means of scrapers.
  • the above-mentioned arrangement allows a homogeneous color film to be rebuilt without retroactive effect.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Coating Apparatus (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
EP19900109317 1989-07-13 1990-05-17 Short inking device without inking zones Withdrawn EP0407708A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3923037A DE3923037A1 (de) 1989-07-13 1989-07-13 Farbzonenfreies, verkuerztes farbwerk
DE3923037 1989-07-13

Publications (2)

Publication Number Publication Date
EP0407708A2 true EP0407708A2 (fr) 1991-01-16
EP0407708A3 EP0407708A3 (en) 1991-07-17

Family

ID=6384875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900109317 Withdrawn EP0407708A3 (en) 1989-07-13 1990-05-17 Short inking device without inking zones

Country Status (8)

Country Link
EP (1) EP0407708A3 (fr)
JP (1) JPH0351132A (fr)
AU (1) AU5683290A (fr)
CA (1) CA2019899C (fr)
DE (1) DE3923037A1 (fr)
FI (1) FI903517A7 (fr)
NZ (1) NZ234488A (fr)
ZA (1) ZA904266B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327380A (en) * 1997-07-18 1999-01-27 Roland Man Druckmasch Short inking unit
EP0974460A1 (fr) * 1998-06-23 2000-01-26 FGD, Forschungsgesellschaft Druckmaschinen e.V. Procédé et dispositif pour réguler le transfert de l'encre dans un appareil d'encrage
WO2003072266A1 (fr) * 2002-02-27 2003-09-04 3M Innovative Properties Company Dispositif et procede d'enrobage de torons

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10020510A1 (de) * 2000-04-26 2001-11-15 Roland Man Druckmasch Dosiersystem zum Einfärben von Walzen in einer Druckmaschine
JP2010107538A (ja) * 2008-10-28 2010-05-13 Seiko Epson Corp 現像装置、画像形成装置、及び、現像方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792367A (fr) * 1971-12-06 1973-03-30 Vickers Ltd
US4041864A (en) * 1972-05-09 1977-08-16 Dahlgren Manufacturing Company Method and apparatus for inking printing plates
DE2438169C3 (de) * 1974-08-08 1978-04-20 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Rotations-Offsetdruckwerk, bei dem eine Übertragungswalze des Farbwerkes mit einer profilierten Mantelfläche versehen ist
DE2659557A1 (de) * 1976-12-30 1978-07-06 Maschf Augsburg Nuernberg Ag Rotations-offsetdruckwerk
US4208963A (en) * 1978-04-18 1980-06-24 Dahlgren Manufacturing Company Newspaper printing system
DD140440A1 (de) * 1978-10-28 1980-03-05 Horst Schulz Farbwerk fuer druckmaschinen
DE3008981A1 (de) * 1980-03-08 1981-09-24 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Umstellbares heber-/filmfarbwerk
DD201423A1 (de) * 1981-10-02 1983-07-20 Peter Straube Farbwerk fuer druckmaschinen
FR2590205A1 (fr) * 1985-11-21 1987-05-22 Seailles Tison Sa Dispositif pour l'encrage d'une forme d'impression rotative a partir d'une masse compacte d'encre a viscosite elevee
DE3804204A1 (de) * 1988-02-11 1989-08-24 Heidelberger Druckmasch Ag Filmfarbwerk fuer rotationsdruckmaschinen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327380A (en) * 1997-07-18 1999-01-27 Roland Man Druckmasch Short inking unit
GB2327380B (en) * 1997-07-18 2002-02-20 Roland Man Druckmasch Short inking unit
EP0974460A1 (fr) * 1998-06-23 2000-01-26 FGD, Forschungsgesellschaft Druckmaschinen e.V. Procédé et dispositif pour réguler le transfert de l'encre dans un appareil d'encrage
WO2003072266A1 (fr) * 2002-02-27 2003-09-04 3M Innovative Properties Company Dispositif et procede d'enrobage de torons
US6926772B2 (en) 2002-02-27 2005-08-09 3M Innovative Properties Company Strand coating device and method
US7329435B2 (en) 2002-02-27 2008-02-12 3M Innovative Properties Company Strand coating device and method

Also Published As

Publication number Publication date
CA2019899A1 (fr) 1991-01-13
NZ234488A (en) 1992-01-29
ZA904266B (en) 1991-03-27
FI903517A0 (fi) 1990-07-11
AU5683290A (en) 1991-01-17
FI903517A7 (fi) 1991-01-14
JPH0351132A (ja) 1991-03-05
DE3923037A1 (de) 1991-01-24
DE3923037C2 (fr) 1993-05-27
EP0407708A3 (en) 1991-07-17
CA2019899C (fr) 1999-03-30

Similar Documents

Publication Publication Date Title
DE3338143C2 (de) Verfahren zur Erzeugung einer dem Druckbild entsprechenden Farbschichtstärke im Farbwerk einer Druckmaschine
DE3228002C2 (de) Vorrichtung zum Aufbringen eines sehr gleichmäßigen und glatten Überzugs auf der Oberfläche einer zylindrischen Walze
DE2916047C2 (de) Farb- und Feuchtwerk für lithographische Druckplatten
EP0003790A1 (fr) Dispositif pour enduire une feuille en mouvement
DE2557551B1 (de) Verfahren und vorrichtung zum auftragen von fluessigkeiten, insbesondere von fluessigen klebstoffen auf bahnfoermiges material
DE8413874U1 (de) Vorrichtung zum Befeuchten an lithographischen Druckpressen
DE3804204C2 (fr)
DE2062276A1 (de) Farbwerk fur eine Rotationsdruckmaschine
EP1282517B1 (fr) Procede et dispositif pour appliquer une couche de vernis sur la face superieure d'un support d'impression
DE1940661B2 (de) Feuereinrichtung fur hthogra phische Druckmaschinen
DE3923037C2 (fr)
DE3641213C2 (de) Druckeinheit einer Offsetrotationsdruckmaschine
EP0210671B1 (fr) Dispositif de mouillage pour machine à imprimer
EP1291176B1 (fr) Machine à imprimer et procédé d'opération d'un dispositif d'encrage
DE2913825C2 (fr)
EP0056067B1 (fr) Dispositif pour appliquer une couche mince d'une substance d'enduction sur une bande de matériau en mouvement
DE3127880C2 (de) Farbwerk
DD202663A5 (de) Farbwerk fuer eine lithographische druckmaschine
DE3927365A1 (de) Auftragswerk zum auftragen von beschichtungen
EP4180228B1 (fr) Dispositif pour appliquer un fluide
EP3960463B1 (fr) Matage au moyen du processus de transfert
DE202008000451U1 (de) Beschichtungsdüse, Beschichtungsanordnung mit der Beschichtungsdüse
DE20320598U1 (de) Dosiereinrichtung für Farben und Lacke
AT201995B (de) Verfahren und Vorrichtung zur Herstellung von Mehrfarbenschichtblöcken
AT40010B (de) Verfahren zur Regelung der Farbzufuhr bei Farbwerken.

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: 19900517

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DK FR GB IT LI NL SE

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 DK FR GB IT LI NL SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19921201