EP0839652B1 - Méthode de nettoyage des cylindres et des rouleaux dans une machine à imprimer - Google Patents

Méthode de nettoyage des cylindres et des rouleaux dans une machine à imprimer Download PDF

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Publication number
EP0839652B1
EP0839652B1 EP97117937A EP97117937A EP0839652B1 EP 0839652 B1 EP0839652 B1 EP 0839652B1 EP 97117937 A EP97117937 A EP 97117937A EP 97117937 A EP97117937 A EP 97117937A EP 0839652 B1 EP0839652 B1 EP 0839652B1
Authority
EP
European Patent Office
Prior art keywords
roller
damping
unit
ductor
driven
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
EP97117937A
Other languages
German (de)
English (en)
Other versions
EP0839652A2 (fr
EP0839652A3 (fr
Inventor
Joachim Dipl.-Phys. Müller
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 EP0839652A2 publication Critical patent/EP0839652A2/fr
Publication of EP0839652A3 publication Critical patent/EP0839652A3/fr
Application granted granted Critical
Publication of EP0839652B1 publication Critical patent/EP0839652B1/fr
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
    • B41F35/00—Cleaning arrangements or devices

Definitions

  • the invention relates to a method for cleaning cylinders and rollers in one Printing machine, preferably an offset printing machine or an inline coating unit according to the preamble of the respective main claim.
  • DE 195 01 806 A1 describes a method for cleaning cylinders and rollers known, after which the dampening roller roller is cleaned.
  • the dampening roller is used for this integrated into the inking unit roller by means of a bridge roller.
  • the The dampening roller can be turned on or off by the plate cylinder.
  • a dampening unit for an offset printing press is known from EP 0 450 155 B1 which a dampening roller to the plate cylinder and a dampening roller (Immersion roller) is mounted on and off.
  • the dampening roller is removed from the plate cylinder driven, i.e. when switched on and off, it runs at its peripheral speed.
  • the dampening roller immersed in a dampening solution container has its own, speed-controllable drive, so that according to the dampening solution requirement the printing form at different machine speeds Amount of dampening solution can be supplied.
  • the painting device has a scoop roller and one with an applicator roller in contact with a forme cylinder. Furthermore, the scoop roller is one Dosing roller assigned. The scoop roller is via a gear transmission with a separate one speed-controllable and rotational direction switchable electric drive coupled.
  • the rollers can in particular by the cleaning fluid reducing the coefficient of friction, the color or varnish to be processed, the roller pressure and or the material pairing even the external friction of at least two rollers in contact with each other Reduce contact areas so that the transferable circumferential force is close to zero. I.e. in extreme cases, at least one roller can "stop" or stick-slip movements occur on the roller surface.
  • a stationary roller acts as if Scraper element (analogous to a squeegee) and scrapes the detergent ink / lacquer emulsion from the neighboring roller.
  • the emulsion can be placed in the dampening solution tank or get into a paint storage container and the liquid medium present there contaminate. Liquid media contaminated in this way must be replaced what additional effort is required.
  • the object of the invention is therefore to provide a method that the disadvantages mentioned avoids that in the cleaning mode of rollers and cylinders the external friction is maintained so that the transferable peripheral force drops is avoided in the roller pairing.
  • a printing unit of a preferably offset printing machine it is provided to clean the plate cylinder and the dampening unit roller in addition to the inking unit roller train.
  • the inking unit roller, the plate cylinder and the dampening unit roller can be included in the cleaning process individually, in groups or together.
  • the dampening roller unit is integrated into the inking unit roller via a bridge roller.
  • the dampening roller of the dampening unit roller can also be placed on the plate cylinder.
  • a vegetable cleaning agent and / or water is used as the cleaning fluid.
  • the dampening solution has been removed from the dampening solution container or has been lowered so far that the dampening roller no longer dips into the dampening solution.
  • the dampening duct is coupled to the separate speed-controllable drive and is driven for a limited time at an excessive speed in relation to a value customary in printing operation.
  • the machine speed of the printing unit is set to the speed at which the dampening roller driven by the plate cylinder has a synchronous peripheral speed to the separately driven dampening roller.
  • the working process is not limited to a single drum roller in a printing unit. Rather, this is also suitable for coating units which, in addition to the forme cylinder, have at least one application roller and an adjacent duct roller (two-roller mill).
  • the metering roller can additionally be assigned a metering roller, or further transfer rollers can be arranged between the application roller and the doctor roller.
  • a spray tube is assigned to the roll nip for the application of cleaning fluid.
  • the duct roller is also coupled to a separate speed-controllable motor drive.
  • the application roller is coupled to the forme cylinder via a gear drive.
  • the speed of the ductor roller is driven to a value that is limited in time, analogous to the dampening unit operation.
  • the applicator roller is driven by the forme cylinder and this with synchronous peripheral speed.
  • the advantage of these designs is that a noticeable improvement in the result of roller cleaning is achieved by the rollers being cleaned more quickly in the dampening unit roller train or in the coating unit.
  • the plate cylinder can also be integrated into the cleaning process in that the dampening roller or the lacquer roller is in contact with the plate cylinder during the cleaning process. The "standstill" of a roller is avoided and thus the cleaning fluid consumption and the cleaning time are reduced. Soiling of the storage container and the associated cleaning are also eliminated.
  • the printing unit essentially consists of an inking roller 4, a dampening roller 3, a plate cylinder 1 and a blanket cylinder 2.
  • the inking roller 4 is assigned a spray device which can be operated with a vegetable cleaning agent and / or water.
  • the plate cylinder 1 is assigned to the inking roller train 4, inking rollers 13 and a dampening roller roller 3 belonging to the dampening roller train 3 can be switched on and off.
  • the dampening unit roller train 3 can be coupled to the inking unit roller train 4 via a bridge roller 5. Further components of the printing unit will not be discussed here.
  • a doctor device 11 is arranged on one of the last rollers of the inking unit roller train 4, which is received in a swivel joint and can be pivoted to the roller by means of an actuating device 10 for switching it on and off.
  • the actuating device 10 and the spray device can be controlled by means of a control station.
  • the dampening unit roller train 3 has a dampening roller 7 which is coupled to a separate, speed-controllable drive and which is immersed in a dampening agent reservoir 9.
  • the dampening roller 7 is in contact with a metering roller 8.
  • the bridge roller 5 is assigned to the dampening roller 6 as a rider roller.
  • the dampening roller can have an additional rider roller 12 wear, which is arranged adjacent to the bridge roller 5.
  • the dampening roller For the operating mode "cleaning of rollers "is cleaned after the inking unit roller 4, on the dampening roller 6 resting bridge roller 5 coupled to the inking unit roller 4.
  • the dampening unit roller 3 is thus integrated into the inking unit roller 4.
  • the drive of the dampening duct 7 is activated when the spraying device and doctor blade device are activated, and the dampening duct 7 is operated for a limited time at an excessive peripheral speed in relation to a value customary in printing operation.
  • the machine speed of the printing unit is set to a defined speed at which the peripheral speeds of the dampening roller 6 driven by the plate cylinder 1 are synchronized with the dampening roller 7. It has been found that, for the cleaning process, favorable synchronous speeds in a range from 3000 to 8000 sheets per hour can be achieved.
  • the metering roller 8 adjacent to the dampening roller 7 is driven by the damping roller 7 by means of friction.
  • dampening roller 3 If the dampening roller 3 is designed with an additional rider roller 12 resting on the dampening roller 6, it can be pivoted from its position 12 in the direction of the metering roller 8 in such a way that the rider roller 12 then assumes the position 12 'and with the dampening roller 6 and Metering roller 8 is in contact. This roller position 12 'additionally increases the transferable peripheral force.
  • the wet doctor 7 is driven as already described.
  • An application roller 15 is with a forme cylinder 14 in contact.
  • the duct roller 17 carries a in this training Metering roller 18.
  • the nip, formed from transfer roller 16 and duct roller 17, is associated with a spray tube for cleaning fluid (not shown).
  • the duct roller 17 is with a separate, speed-controllable drive coupled and the application roller 15 is with the drive of the forme cylinder 14 positively engaged for cleaning the painting unit cleaning fluid is applied to the spray tube and the duct roller 17 limited in time driven by the drive to a speed value that is above the usual Production paint value is.
  • the peripheral speed of the application roller 15 controlled by the forme cylinder 14 in such a way that duct roller 17 and applicator roller 15 can be operated with synchronous peripheral speed.

Landscapes

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

Claims (3)

  1. Procédé pour nettoyer des cylindres et rouleaux dans une machine d'impression, comprenant un train de rouleaux de l'unité d'encrage (4), auquel sont associés un dispositif de pulvérisation et un dispositif de raclage (11), et un train de rouleaux de l'unité de mouillage (3) présentant au moins un rouleau d'application d'agent de mouillage (6) et un cylindre d'agent de mouillage (7), qui est intégré dans le train de rouleaux de l'unité d'encrage (4) au moyen d'un rouleau de pontage (5) commutable, le dispositif de pulvérisation, pouvant être alimenté par un agent de nettoyage, et le dispositif de raclage (11) étant activés, le rouleau d'application d'agent de mouillage (6) étant entraíné par un cylindre porte-plaque (1), le cylindre d'agent de mouillage (7) étant entraíné par un entraínement séparé dont la vitesse de rotation est commandable, par rapport à l'impression, à une vitesse périphérique excessive, de sorte que les vitesses du rouleau d'application d'agent de mouillage (6) et du cylindre d'agent de mouillage (7) sont synchrones, d'autres rouleaux du train de rouleaux de l'unité de mouillage (3) étant entraínés par friction.
  2. Procédé selon la revendication 1,
    caractérisé en ce qu'un chargeur baladeur (12, 12') agencé par friction par rapport au rouleau d'application d'agent de mouillage (6) est amené en contact de friction avec un rouleau de dosage (8) associé au cylindre d'agent de mouillage (7).
  3. Procédé pour nettoyer des cylindres et rouleaux d'une unité de laquage d'une machine d'impression, comportant au moins un rouleau d'application (15) et un rouleau vernisseur (17) plongeant dans un réservoir de vernis (19), le rouleau vernisseur (17) étant couplé, par engrenage, à un entraínement séparé, un dispositif de pulvérisation, pouvant être alimenté par un agent de nettoyage, étant activé, le rouleau d'application (15) étant entraíné par un cylindre porte-cliché (14), le rouleau vernisseur (17) étant entraíné par un entraínement séparé dont la vitesse de rotation est commandable, par rapport au laquage, à une vitesse périphérique excessive, de sorte que les vitesses périphériques du rouleau d'application (15) et du rouleau vernisseur (17) sont synchrones, d'autres rouleaux, guidant le vernis, de l'unité de laquage étant entraínés par friction.
EP97117937A 1996-11-02 1997-10-16 Méthode de nettoyage des cylindres et des rouleaux dans une machine à imprimer Expired - Lifetime EP0839652B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19645169 1996-11-02
DE19645169A DE19645169C2 (de) 1996-11-02 1996-11-02 Verfahren zur Reinigung von Zylindern und Walzen in einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP0839652A2 EP0839652A2 (fr) 1998-05-06
EP0839652A3 EP0839652A3 (fr) 1998-12-02
EP0839652B1 true EP0839652B1 (fr) 2001-04-04

Family

ID=7810449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117937A Expired - Lifetime EP0839652B1 (fr) 1996-11-02 1997-10-16 Méthode de nettoyage des cylindres et des rouleaux dans une machine à imprimer

Country Status (2)

Country Link
EP (1) EP0839652B1 (fr)
DE (2) DE19645169C2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004031946B4 (de) * 2004-06-30 2021-03-18 Heidelberger Druckmaschinen Ag Verfahren zum Antreiben von Walzen eines Druckwerkes einer Druckmaschine
DE102005056812B4 (de) * 2004-12-21 2025-05-22 Heidelberger Druckmaschinen Ag Verfahren zum Waschen eines Anilox-Farbwerks einer Druckmaschine
JP4786325B2 (ja) 2004-12-21 2011-10-05 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 印刷機のアニロックス式インキ装置を洗浄する方法
DE102007004217A1 (de) 2007-01-27 2008-07-31 Man Roland Druckmaschinen Ag Verfahren und Vorrichtung zur Reinigung von Zylindern und Walzen in einer Druckmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369734A (en) * 1980-03-17 1983-01-25 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Varnishing assembly in a printing press having self-cleaning feature
DE3507210A1 (de) * 1985-03-01 1986-09-04 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Waschvorrichtung fuer das gummituch an offset-rotationsdruckmaschinen
DD238574A1 (de) * 1985-06-25 1986-08-27 Polygraph Leipzig Verfahren und einrichtung zur beseitigung von putzen auf der druckplatte
DD247417B1 (de) * 1986-04-01 1990-06-20 Polygraph Leipzig Vorrichtung zum antrieb einer lackiereinrichtung
DE3832527A1 (de) * 1987-09-29 1989-04-13 Jpe Kk Befeuchtungssystem fuer eine offsetdruckmaschine
DE4011039C2 (de) * 1990-04-05 1996-03-14 Roland Man Druckmasch Verfahren zum Befeuchten und Einfärben eines Plattenzylinders einer Mehrfarben-Offset-Bogenrotationsdruckmaschine
DE4410161C2 (de) * 1994-03-24 1998-02-26 Roland Man Druckmasch Verfahren und Vorrichtung zur Beseitigung von Butzen auf der Druckplatte einer Druckmaschine
DE19501806C5 (de) * 1995-01-21 2005-08-18 Man Roland Druckmaschinen Ag Verfahren zur Reinigung von Zylindern und Walzen eines Druckwerkes einer Druckmaschine

Also Published As

Publication number Publication date
DE59703283D1 (de) 2001-05-10
DE19645169C2 (de) 2000-02-03
DE19645169A1 (de) 1998-05-14
EP0839652A2 (fr) 1998-05-06
EP0839652A3 (fr) 1998-12-02

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