EP2072256A2 - Unité d'encrage avec dispositif de dosage - Google Patents

Unité d'encrage avec dispositif de dosage Download PDF

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Publication number
EP2072256A2
EP2072256A2 EP20080170332 EP08170332A EP2072256A2 EP 2072256 A2 EP2072256 A2 EP 2072256A2 EP 20080170332 EP20080170332 EP 20080170332 EP 08170332 A EP08170332 A EP 08170332A EP 2072256 A2 EP2072256 A2 EP 2072256A2
Authority
EP
European Patent Office
Prior art keywords
roller
doctor
applicator according
metering
coupled
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Withdrawn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
EP20080170332
Other languages
German (de)
English (en)
Inventor
Jürgen Schölzig
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
Manroland 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 Manroland AG filed Critical Manroland AG
Publication of EP2072256A2 publication Critical patent/EP2072256A2/fr
Withdrawn legal-status Critical Current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
    • B41F31/027—Ink rail devices for inking ink rollers

Definitions

  • the invention relates to a commissioned work with a metering device for a flowable medium, preferably for an inking unit, in a processing machine according to the preamble of claim 1.
  • the applicator with metering device is suitable for inking, preferably for short inking, and is particularly in printing and / or Applicable coating machines.
  • Inking units in particular short inking units according to the anilox principle, are characterized by the fact that these inking roller assemblies and a color ink-free ink supply, especially without ink fountain keys, have the effect of guaranteeing a uniform coloring of the printing form.
  • a medium to be processed paint, paint
  • preferably lower viscosity than in conventional inking is used.
  • a short inking unit of this kind is out DE 44 31 464 A1 known, which has a metering system with a short ink roller train.
  • the dosing system comprises an anilox roll also referred to as anilox roll with circumferentially arranged, cup or groove-shaped, can be filled with paint or varnish depressions and intervening webs.
  • the dosing system comprises a squeegee device, especially a chamber doctor blade, which scraps the anilox roller circumferentially.
  • the anilox roller cooperates with an inking roller forming the short roller train, which in turn is in operative connection with a plate / forme cylinder.
  • the diameters of blanket cylinder, forme cylinder and inking roller are the same.
  • the peripheral speed of the inking roller is different from the peripheral speed of the anilox roller.
  • the plate / forme cylinder is still with a blanket cylinder and the blanket cylinder is operatively connected to a printing material leading impression cylinder.
  • Another inking unit comprises a paint box with a doctor blade, an anilox roller, an inking roller and a forme cylinder.
  • the short inking unit is tempered by the rollers or cylinders can be cooled or heated by a temperature control.
  • the amount of ink can be controlled by means of characteristic curves, taking into consideration the type of printing material, the color type and the color temperature.
  • a short inking unit which has a simple color cylinder with associated ink fountain and arranged on the ink fountain ink dosing. Furthermore, this inking unit comprises at least one color roller with a hard surface finish downstream inking roller with an elastic surface, which are a plate cylinder and this in turn a blanket cylinder downstream.
  • the diameter of the inking roller corresponds in a first embodiment, the diameter of the plate cylinder diameter.
  • two inking rollers applied to the plate cylinder are provided between the ink cylinder and the plate cylinder, the diameter of which correspond to the plate cylinder diameter or the diameter of the plate cylinder diameter almost correspond, the diameter of the inking rollers for later regrinding about 1 mm thicker than the diameter of the plate cylinder are.
  • a short inking unit which includes, among other things, an anilox roller and an inking roller.
  • the diameter of the inking roller corresponds to the diameter of the printing plate (on the plate cylinder).
  • the inking roller has an elastomeric roller cover.
  • the object of the invention is to improve a commissioned work with a metering device of the type mentioned in such a way that with little effort, a process-stable metering quality can be realized.
  • a first advantage of the invention lies in the fact that such a metering device for an inking unit with at least one compactor, i. can be used with a relatively large number of rollers, as well as for a short inking unit with a relatively small number of rollers in a processing machine. It can be upstream of the inking unit in the direction of rotation of the plate / forme cylinder a dampening unit.
  • the metering device comprises a doctoring device with a chamber, which is formed, inter alia, from a doctor blade with the function as a closing blade and a doctor roller with the function as a working doctor blade.
  • the surface of the doctor roller may have a surface storing the medium to be metered.
  • the doctor roller may be formed with a ceramic or metallic surface, alternatively a plastic surface.
  • the surface may be formed of a sintered material.
  • the surface of the doctor roller preferably comprises cells and webs or grooves.
  • the surface may have a stochastic screen.
  • the doctor roller may have a deliberately introduced surface roughness and / or a defined surface structure, for example knurling.
  • a third advantage is that the metering roller and preferably the doctor roller are drivable.
  • the peripheral speed of the drivable metering roller can be equal or unequal to the peripheral speed to the preferably drivable doctor roller.
  • the fourth advantage is that the metering roller can be produced with little effort compared to an anilox roller (anilox roller).
  • the doctor roller has a relatively low weight and shows a reduced wear compared to a doctor blade.
  • the metering roller and, if necessary, the doctor roller are easily replaceable and have a relatively low weight.
  • the dosing roller may have a special surface finish, for example, hydrophilic or hydrophobic properties may be taken into account during production.
  • An applicator with a metering device for a flowable medium in a processing machine comprises a plate / forme cylinder 1, this directly or indirectly via at least one applicator roll 5, optionally intermediate rollers, associated metering roller 6 and one of the metering roller 6 associated doctor device 7, wherein the doctor device. 7 comprises a laterally closed, in contact with the metering roller 6 in contact ink chamber 20, in which the medium is fed.
  • the plate / forme cylinder 1 is followed by a blanket cylinder 2.
  • Fig. 1 is a commissioned example of a short inking unit for a processing machine, especially for a sheetfed press, shown, which is a printing substrate in the conveying direction 3 leading impression cylinder 4, one with the printing cylinder 4 in the region of a printing nip 11 operatively connected blanket cylinder 2 and one with the blanket cylinder 2 in Actively connected plate / forme cylinder 1 comprises.
  • printing cylinder 4, blanket cylinder 2 and plate / forme cylinder 1 each have cylinder channels 12 for receiving gripper systems or clamping devices.
  • the plate / forme cylinder 1 can, if necessary, a dampening unit 13 with at least be associated with a dampening roller.
  • the plate / forme cylinder 1 is preceded by at least one application roller 5, here designed as an inking roller 5 which can be turned on / off.
  • the application roller 5 may have a single or multi-layer rubber coating or carry a releasably fixable rubber blanket.
  • the application roller 5 - with respect to the plate / forme cylinder 1 - an equal outside diameter.
  • the application roller 5 - with respect to the plate / forme cylinder 1 - have a larger outer diameter.
  • the application roller 5 is preceded by a drivable metering roller 6 with a flat surface, preferably with a relatively smooth surface.
  • the metering roller 6 is associated with a doctor device 7 on / ab plausible.
  • the metering roller 6 is drivable and has a flat surface.
  • the metering roller 6 has a metallic or ceramic surface.
  • the metering roller 6 may be coupled to a main drive with gear train (machine drive).
  • the metering roller 6 can be coupled to a first separate drive 9a and preferably be coupled to a machine control 10 in terms of circuitry and data.
  • the metering roller 6 may be coupled with a gear arranged on a plate / forme cylinder 1 single drive.
  • the doctor device 7 comprises, in the direction of rotation of the metering roller 6, a doctor blade 7b and a downstream, rotatably mounted doctor roller 7a.
  • the doctor roller 7a may preferably be mounted on the housing of the doctor device 7. Between the doctor blade 7b and the doctor roller 7a, the doctor device 7 has the ink chamber 20 in contact with the metering roller 6.
  • the doctor roller 7a can be driven by friction from the drivable metering roller 6.
  • the doctor roller 7a is designed to be drivable.
  • the squeegee roller 7a may be coupled to a second separate drive 9b and coupled in terms of circuitry and data with a machine controller 10.
  • the doctor roller 7a may be coupled with the drivable metering roller 6 in terms of gear technology.
  • the doctor roller 7a can preferably be driven counter to the direction of rotation of the metering roller 6.
  • the doctor roller 7a has a surface storing the medium to be metered, for example, a metal (including mixture) or a ceramic (for example, a homogeneous sintered material such as Si-SiC) on.
  • This surface of the doctor roller 7a may have cells (wells) and lands or grooves (hashes).
  • the cells or grooves can be produced by means of laser engraving.
  • the doctor roller 7a is easily stored and removed with little effort from the storage and, if necessary by a further doctor roller 7a ', for example, with a deviating to the original doctor roller 7a storage volume, interchangeable.
  • the surface of the doctor roller 7a includes, for example, wells and webs with a stochastic grid.
  • the doctor roller may have a deliberately introduced surface roughness and / or a defined surface structure with elevations and depressions, for example a knurling.
  • the ink chamber 20 is coupled to a feed line 15 for the medium and in this feed line 15, a controllable pump 14 is arranged integrated.
  • the supply line 15 is preferably coupled to a reservoir 8 for the medium.
  • the squeegee blade 7b of the squeegee device 7 is preferably preceded by a collecting trough 17.
  • This drip pan 17 may be coupled to a recirculation line 16 opening into the reservoir 8.
  • a cleaning device 18 can be associated with it / can be switched off / on.
  • this can be assigned a smoothing device 19 for flattening the surface topography of the medium (elevations or depressions in the ink layer) remaining after ink splitting on the metering roller 6.
  • the smoothing device 19 can be designed to be axially changeable driven. Cleaning device 18 and smoothing device 19 may also be associated in combination with the metering roller 6.
EP20080170332 2007-12-18 2008-12-01 Unité d'encrage avec dispositif de dosage Withdrawn EP2072256A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007061057A DE102007061057A1 (de) 2007-12-18 2007-12-18 Auftragswerk mit einer Dosiereinrichtung

Publications (1)

Publication Number Publication Date
EP2072256A2 true EP2072256A2 (fr) 2009-06-24

Family

ID=40445546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080170332 Withdrawn EP2072256A2 (fr) 2007-12-18 2008-12-01 Unité d'encrage avec dispositif de dosage

Country Status (3)

Country Link
EP (1) EP2072256A2 (fr)
JP (1) JP2009149077A (fr)
DE (1) DE102007061057A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020102622A1 (de) * 2020-02-03 2021-08-05 Koenig & Bauer Ag Tiefdruckwerk

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8224875U1 (fr) 1982-09-03 1987-01-08 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4431464A1 (de) 1994-09-03 1996-03-07 Koenig & Bauer Albert Ag Kurzfarbwerk
DE19736339A1 (de) 1997-08-21 1999-04-15 Roland Man Druckmasch Druckmaschine mit einer Temperiervorrichtung
DE10160734A1 (de) 2001-01-11 2002-07-18 Heidelberger Druckmasch Ag Druckmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB516716A (en) * 1938-04-08 1940-01-10 Alfred Schlesinger Improvements in and relating to rotary printing machines
DE2909008A1 (de) * 1979-03-08 1980-09-11 Frankenthal Ag Albert Farbwerk fuer eine druckmaschine
DD283581A5 (de) * 1988-03-25 1990-10-17 Veb Kombinat Polygraph "Werner Lamberz" Leipzig,Dd Kurzfarbwerk
DE4140790A1 (de) * 1991-12-11 1993-07-15 Kochsmeier Hans Hermann Dosiervorrichtung fuer fluessige auftragsmittel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8224875U1 (fr) 1982-09-03 1987-01-08 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4431464A1 (de) 1994-09-03 1996-03-07 Koenig & Bauer Albert Ag Kurzfarbwerk
DE19736339A1 (de) 1997-08-21 1999-04-15 Roland Man Druckmasch Druckmaschine mit einer Temperiervorrichtung
DE10160734A1 (de) 2001-01-11 2002-07-18 Heidelberger Druckmasch Ag Druckmaschine

Also Published As

Publication number Publication date
DE102007061057A1 (de) 2009-06-25
JP2009149077A (ja) 2009-07-09

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