EP1743771A1 - Dispositif pour nettoyer des cylindres d'une machine d'impression - Google Patents

Dispositif pour nettoyer des cylindres d'une machine d'impression Download PDF

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Publication number
EP1743771A1
EP1743771A1 EP05015308A EP05015308A EP1743771A1 EP 1743771 A1 EP1743771 A1 EP 1743771A1 EP 05015308 A EP05015308 A EP 05015308A EP 05015308 A EP05015308 A EP 05015308A EP 1743771 A1 EP1743771 A1 EP 1743771A1
Authority
EP
European Patent Office
Prior art keywords
doctor blade
cylinder
washing roller
squeegee
roller
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Withdrawn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
EP05015308A
Other languages
German (de)
English (en)
Inventor
Kjell E. Dipl.-Ing. Lundin
Rune G. Dipl.-Ing. Vestman
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.)
Baldwin Oxy Dry GmbH
Original Assignee
Oxy Dry Maschinen GmbH
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 Oxy Dry Maschinen GmbH filed Critical Oxy Dry Maschinen GmbH
Priority to EP05015308A priority Critical patent/EP1743771A1/fr
Priority to CA002551468A priority patent/CA2551468A1/fr
Priority to JP2006191041A priority patent/JP2007022080A/ja
Priority to US11/457,479 priority patent/US7530308B2/en
Publication of EP1743771A1 publication Critical patent/EP1743771A1/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Withdrawn legal-status Critical Current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
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/21—Scrapers, e.g. absorbent pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/22—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/30—Recovering used solvents or residues

Definitions

  • the invention relates to a device for cleaning cylinders of a printing press according to the preamble of claim 1.
  • this device comprises a driven washing roller, which is engageable with a cylinder to be cleaned.
  • a squeegee which at least intermittently engages the surface of the rotating washing roller, the dirt removed from the washing cylinder by the cylinder to be cleaned is scraped off.
  • the squeegee is attached to a sump in which the saucerakelte dirt is collected and discharged.
  • Cleaning devices of this type are used to remove deposits and contaminants on cylinders of printing presses, which arise in particular by the intensive contact with the substrates.
  • paper is printed, especially paper dust and ink are deposited on the cylinders of the press.
  • An example of a known cleaning device is in EP-A-1 106 354 described.
  • the set by the engine of this device in rotation, designed as a brush roller washing roller is employed on a cylinder, which may be a blanket cylinder, impression cylinder, plate or forme cylinder, or even a chill roll, ink roller or dampening roller of a printing machine.
  • a cylinder which may be a blanket cylinder, impression cylinder, plate or forme cylinder, or even a chill roll, ink roller or dampening roller of a printing machine.
  • the dirt picked up by the washing roller is wiped off by a squeegee, which is clamped in several squeegee holders. These are inserted into a serving as a scaffold of the cleaning device holding profile and fastened there. Below the squeegee a drip tray is provided below the squeegee .
  • the direction of rotation of the brush roller is chosen so that its surface travels as short a path as possible between the surface of the cylinder to be cleaned and the doctor blade. Furthermore, the stripping of the brush roller on the doctor blade is known to take place by elastic bending of the individual bristles on the doctor blade and subsequent elastic re-erection of the bristles, wherein the particles of dirt are not only stripped off the doctor blade but also thrown off when the bristles are re-erected. For this reason too, the direction of rotation of the brush roller is usually selected so that the centrifuging of the dirt particles is directed away from the cylinder to be cleaned.
  • washing liquid This includes not keeping the squeegee constantly in engagement with the surface of the washing roller but temporarily removing it from this operation.
  • the washing liquid then remains longer on the washing roller surface and accordingly has more time to dissolve the contaminants on the surface of the cylinder to be cleaned. It is then less often necessary to add new washing liquid; the consumption of washing liquid drops accordingly with comparable cleaning performance.
  • the present invention has for its object to improve a cleaning device of the type mentioned in terms of their handling.
  • the device according to the invention thus differs from the previously known devices in particular in that the collecting trough is mounted movably relative to the washing roller such that the squeegee attached to the collecting trough is adjusted to the washing roller as required by a corresponding movement of the collecting trough or out of engagement with the surface the washing roller is moved out.
  • the doctor can therefore be taken out of engagement with the surface of the washing roller in the interest of the most efficient use of washing liquids, so that the washing liquid is not thrown off the washing roller immediately during the cleaning process again.
  • a front wall of the drip pan may be formed as a doctor blade holder; but it may also be appropriate, a doctor blade holder inside the sump to arrange, especially for brush rollers that are scraped off, the dirt is not only thrown off, but partially stalked on the front of the doctor of the bristles so that it runs down the squeegee front. For this reason, it also offers advantages when the doctor blade holder is provided below the doctor with gaps or feedthroughs, so that the running down on the doctor blade front dirt through the gaps or feedthroughs in the drip pan or in the dirt receiving in the main part of the Drip tray arrives.
  • the doctor blade is preferably designed as a doctor bar and is seated in a receptacle adapted to the doctor bar in or on the drip pan.
  • the doctor bar can be used in particular by clamping and is therefore easily replaceable.
  • the squeegee can be adjusted within the recording in height, for example, to compensate for signs of wear.
  • This recording for the doctor bar can be arranged within the doctor blade.
  • the receptacle has two side walls, which are provided with openings in their lower area, so that the dirt running down on the squeegee front side can reach the other side of the receptacle.
  • the drip pan which is movably arranged according to the invention, preferably pivotably arranged around a rotation axis in the manner of a rocker, is designed to be removable. Because then the sump can be easily removed from the device together with the squeegee or arranged therein, to clean them and optionally replace the squeegee or turn to bring, for example, a fresh edge of the squeegee in operative position.
  • the pivotable arrangement of the sump in the manner of a rocker is preferably implemented so that the sump sits in a holder which is mounted in the manner of a rocker with two lever arms pivotally mounted on the axis of rotation, wherein one lever arm spring loaded and the other lever arm with a against the Spring-operated actuator, in particular a hydeinem provided against the spring force actuator, in particular a hydraulic or pneumatic piston-cylinder unit is provided.
  • the attachment of the drip pan to this pivotal holder is then preferably by means of releasable connecting elements, such as a latch mechanism.
  • the doctor can, as is known, be formed by a profile element with hexagonal cross-section.
  • the squeegee can then be converted by a simple rotation about its longitudinal axis to replace a worn squeegee edge with a new edge.
  • FIG. 1 the surface of a cylinder to be cleaned 1 is indicated by a broken line.
  • a washing roller 2 embodied as a brush roller is set against the surface of the cylinder 1 to be cleaned and initially moves in the direction of rotation 3 over the surface of the cylinder 1 to be cleaned, picks up dirt there and transports it further up to a doctor blade 4 which is in a receptacle 5 sits clamped.
  • the receptacle 5 is arranged in a collecting trough 6, which in turn is fastened to a holder 7.
  • a housing of the cleaning device shown here is only hinted at, by means of a partition 8.
  • a drain 9 is provided for the mixed with detergent, tillrakelten dirt.
  • housing 17 of the device pneumatic elements 10 are fixed, each actuate a piston-cylinder unit 11. This acts on a second lever arm 12 of the pivotable about a pivot axis 13 bracket 7, while a first lever arm 14 is biased by a spring 15.
  • FIG. 2 to 4 show in a side view of the device shown in Figure 1 different working conditions thereof, wherein like parts are given the same reference numerals, so that reference can be made to the above description of Figure 1.
  • spraying pipes 16 for the washing liquids and a housing 17 are also shown here.
  • FIG. 2 shows the operating state with doctor 4 engaging in the surface of the washing roller 2.
  • the piston-cylinder unit 11 is extended and presses against the second lever arm 12, so that the holder 7 is pivoted together with the attached collecting tray 6 about the pivot axis 13 against the force of the spring 15.
  • the collecting tray 6 pivoted in this way thus leads via the receptacle 5 arranged in the collecting trough 6 and the squeegee 4 seated in the receptacle 5 to the fact that the squeegee 4 is set against the washing roller 2 and is therefore active.
  • a pawl 18 is arranged, which is engaged behind by a fastened to the holder 7, spring-loaded latch 19.
  • FIG. 3 shows the operating state of the device in which the doctor blade 4 is set down from the washing roller 2.
  • FIG. 5 shows the collecting trough 6 removed from the device in a perspective view.
  • the receptacle 5 is arranged within the drip pan 6 and is part of the same, so that no dirt build-up is to be feared on any doctor blade holders, which may even be movable.
  • the on and off of the doctor takes place, as described above, by pivoting the entire sump 6.
  • the receptacle 5 has two side walls 22, which are provided in their lower region with openings 23. Through these openings 23 dirt that runs down the front of the squeegee, in the rear part of the sump 6 and thus reach the drain 9.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP05015308A 2005-07-14 2005-07-14 Dispositif pour nettoyer des cylindres d'une machine d'impression Withdrawn EP1743771A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05015308A EP1743771A1 (fr) 2005-07-14 2005-07-14 Dispositif pour nettoyer des cylindres d'une machine d'impression
CA002551468A CA2551468A1 (fr) 2005-07-14 2006-07-04 Dispositif de nettoyage des cylindres d'une machine a imprimer
JP2006191041A JP2007022080A (ja) 2005-07-14 2006-07-12 印刷機ローラクリーニング装置
US11/457,479 US7530308B2 (en) 2005-07-14 2006-07-14 Device for cleaning the cylinders of a printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05015308A EP1743771A1 (fr) 2005-07-14 2005-07-14 Dispositif pour nettoyer des cylindres d'une machine d'impression

Publications (1)

Publication Number Publication Date
EP1743771A1 true EP1743771A1 (fr) 2007-01-17

Family

ID=35462379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015308A Withdrawn EP1743771A1 (fr) 2005-07-14 2005-07-14 Dispositif pour nettoyer des cylindres d'une machine d'impression

Country Status (4)

Country Link
US (1) US7530308B2 (fr)
EP (1) EP1743771A1 (fr)
JP (1) JP2007022080A (fr)
CA (1) CA2551468A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025983A1 (de) * 2007-06-04 2008-12-11 Technotrans Ag Reinigungsvorrichtung für Druckmaschinen mit gefedeter Rakel
DE102008004073A1 (de) 2008-01-12 2009-07-23 Baldwin Oxy-Dry Gmbh Verfahren und Vorrichtung zum Reinigen von Zylindern einer Druckmaschine
WO2009135535A1 (fr) * 2008-05-05 2009-11-12 Koenig & Bauer Aktiengesellschaft Système de nettoyage de cylindres pour presse à imprimer et procédé de nettoyage d'un ou de plusieurs cylindres

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9492996B2 (en) * 2012-12-31 2016-11-15 Goss International Americas, Inc. Web control to reduce waste and method
DE102017222345A1 (de) * 2017-01-13 2018-07-19 Heidelberger Druckmaschinen Ag Rakelvorrichtung einer Druckmaschine
WO2020027803A1 (fr) 2018-07-31 2020-02-06 Hewlett-Packard Development Company, L.P. Entretien de blanchet
CN112477427B (zh) * 2020-11-26 2022-04-08 霍山县雁江印务有限公司 印刷除墨装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187670A (en) * 1963-06-10 1965-06-08 Edward J Jennings Portable ink-removal device for ink rolls
US5010819A (en) 1989-09-22 1991-04-30 Oxy-Dry Corporation Blanket cleaning apparatus with selectively engageable flicker bar
DE4010957A1 (de) * 1990-04-05 1991-10-10 Wolfgang Loessner Waschvorrichtung fuer den gummituchzylinder einer offset-druckmaschine
US5207160A (en) * 1990-08-20 1993-05-04 Nikka Kabushiki Kaisha Method and apparatus for cleaning printing cylinder
DE19601070A1 (de) * 1996-01-13 1997-07-17 Baldwin Gegenheimer Gmbh Verfahren und Vorrichtung zum Waschen von Druckmaschinen-Zylindern
DE19702082A1 (de) 1997-01-22 1998-07-23 Heidelberger Druckmasch Ag Wascheinrichtung im Druckwerk von Rotationsdruckmaschinen
US6029575A (en) * 1997-12-01 2000-02-29 Heidelberger Druckmaschinen Ag Device for cleaning a cylinder in a printing press
EP1106354A1 (fr) 1999-12-06 2001-06-13 Oxy-Dry Maschinen GmbH Dispositif pour nettoyer des cylindres d'une machine d'impression
DE10230790A1 (de) * 2002-07-08 2004-01-22 Stranz, Andreas H., Dipl.-Ing.(FH) Vorrichtung zum Reinigen von Gummituchzylindern oder Zylindern einer Offsetdruckmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658003A (en) * 1969-05-29 1972-04-25 Johnson Fast Print Mach Corp Method for washing elements of fabric printing machines
US4015307A (en) * 1969-08-25 1977-04-05 Oxy-Dry Sprayer Corporation Apparatus for cleaning rotating cylindrical surfaces
NL80416C (fr) * 1973-06-22
US4254709A (en) * 1976-01-23 1981-03-10 Baldwin-Gegenheimer Corporation Ink roller cleaning device
GB2203096B (en) * 1987-03-28 1991-02-06 Heidelberger Druckmasch Ag Offset printing press blanket washing device
DE10118074B4 (de) * 2000-05-15 2007-05-10 Heidelberger Druckmaschinen Ag Reinigungsvorrichtung in einer Druckmaschine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187670A (en) * 1963-06-10 1965-06-08 Edward J Jennings Portable ink-removal device for ink rolls
US5010819A (en) 1989-09-22 1991-04-30 Oxy-Dry Corporation Blanket cleaning apparatus with selectively engageable flicker bar
DE4010957A1 (de) * 1990-04-05 1991-10-10 Wolfgang Loessner Waschvorrichtung fuer den gummituchzylinder einer offset-druckmaschine
US5207160A (en) * 1990-08-20 1993-05-04 Nikka Kabushiki Kaisha Method and apparatus for cleaning printing cylinder
DE19601070A1 (de) * 1996-01-13 1997-07-17 Baldwin Gegenheimer Gmbh Verfahren und Vorrichtung zum Waschen von Druckmaschinen-Zylindern
DE19702082A1 (de) 1997-01-22 1998-07-23 Heidelberger Druckmasch Ag Wascheinrichtung im Druckwerk von Rotationsdruckmaschinen
US5887524A (en) * 1997-01-22 1999-03-30 Heidelberger Druckmaschinen Aktiengesellschaft Washing device in the printing unit of rotary printing presses
US6029575A (en) * 1997-12-01 2000-02-29 Heidelberger Druckmaschinen Ag Device for cleaning a cylinder in a printing press
EP1106354A1 (fr) 1999-12-06 2001-06-13 Oxy-Dry Maschinen GmbH Dispositif pour nettoyer des cylindres d'une machine d'impression
DE10230790A1 (de) * 2002-07-08 2004-01-22 Stranz, Andreas H., Dipl.-Ing.(FH) Vorrichtung zum Reinigen von Gummituchzylindern oder Zylindern einer Offsetdruckmaschine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007025983A1 (de) * 2007-06-04 2008-12-11 Technotrans Ag Reinigungsvorrichtung für Druckmaschinen mit gefedeter Rakel
DE102007025983B4 (de) * 2007-06-04 2009-02-19 Technotrans Ag Reinigungsvorrichtung für Druckmaschinen mit gefedeter Rakel
DE102008004073A1 (de) 2008-01-12 2009-07-23 Baldwin Oxy-Dry Gmbh Verfahren und Vorrichtung zum Reinigen von Zylindern einer Druckmaschine
EP2087997A1 (fr) 2008-01-12 2009-08-12 Baldwin Oxy-Dry GmbH Dispositif destiné au nettoyage d'un cylindre d'une presse d' impression
DE102008004073B4 (de) * 2008-01-12 2010-06-17 Baldwin Oxy-Dry Gmbh Vorrichtung zum Reinigen von Zylindern einer Druckmaschine
WO2009135535A1 (fr) * 2008-05-05 2009-11-12 Koenig & Bauer Aktiengesellschaft Système de nettoyage de cylindres pour presse à imprimer et procédé de nettoyage d'un ou de plusieurs cylindres

Also Published As

Publication number Publication date
US20070012210A1 (en) 2007-01-18
CA2551468A1 (fr) 2007-01-14
US7530308B2 (en) 2009-05-12
JP2007022080A (ja) 2007-02-01

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