EP0990521A2 - Dispositif et procédé de nettoyage des éléments des machines à imprimer - Google Patents

Dispositif et procédé de nettoyage des éléments des machines à imprimer Download PDF

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Publication number
EP0990521A2
EP0990521A2 EP99119300A EP99119300A EP0990521A2 EP 0990521 A2 EP0990521 A2 EP 0990521A2 EP 99119300 A EP99119300 A EP 99119300A EP 99119300 A EP99119300 A EP 99119300A EP 0990521 A2 EP0990521 A2 EP 0990521A2
Authority
EP
European Patent Office
Prior art keywords
cleaning
cleaning liquid
spray
anilox roller
cleaning device
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.)
Granted
Application number
EP99119300A
Other languages
German (de)
English (en)
Other versions
EP0990521A3 (fr
EP0990521B1 (fr
Inventor
Jochen Wahl
Roger Kuhn
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.)
GSB -Wahl GmbH
Original Assignee
GSB -Wahl 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 GSB -Wahl GmbH filed Critical GSB -Wahl GmbH
Publication of EP0990521A2 publication Critical patent/EP0990521A2/fr
Publication of EP0990521A3 publication Critical patent/EP0990521A3/fr
Application granted granted Critical
Publication of EP0990521B1 publication Critical patent/EP0990521B1/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
    • B41F35/001—Devices for cleaning parts removed from the printing machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/04—Cleaning arrangements or devices for inking 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
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/26—Spraying 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
    • B41P2235/30—Recovering used solvents or residues
    • B41P2235/31—Recovering used solvents or residues by filtering

Definitions

  • the present invention relates to a device and a Process for cleaning parts of printing presses a cleaning liquid, in particular of anilox rollers from Flexographic printing machines, with at least one anilox roller above a level of the cleaning liquid in a washroom their axis driven in rotation and with the cleaning liquid is sprayed on.
  • Flexographic printing presses are printing presses that work on the high-pressure principle work. First of all, color from so-called Anilox rollers added.
  • the anilox rollers have a Large number of extraordinarily small cells on their roller circumference on. The color stays when the anilox rollers turn through a dye bath, due to adhesive forces, etc. hang in the well. Then there will be excess paint stripped by means of a squeegee or the like.
  • the anilox roller subsequently comes into contact with a pressure plate that has raised structures to be printed. The anilox roller transfers the color from its wells to the surface of the sublime structures.
  • Such printing plates can for example be arranged around the pressure cylinder and made of a flexible Material.
  • the cleaning is done by the parts of the Flexographic printing machine in a tank or bath made of solvent or water are immersed. It is also known to brush to provide for coarse dirt or solid, dried To be able to remove impurities.
  • the cleaning liquid or solvent also be disposed of properly, because it understands yourself that even water colors don't just go into the sewers may be disposed of.
  • the problem underlying the invention is therefore the device mentioned at the beginning or the one mentioned at the beginning Processes for cleaning parts of printing machines so too improve that the cleaning effort with little constructive Effort even if different color systems are used the printing press are used, is reduced.
  • This task is for Cleaning parts of printing machines solved in that at least five fixed spray devices are provided, which are essentially along an axis parallel to the anilox roller axis are arranged and the cleaning liquid under spray different angles on the anilox roller, such that at least two adjacent spray devices are not are aimed at the anilox roller at the same angle.
  • this task becomes solved in that the cleaning liquid by means of at least five sprayers, essentially along an axis is arranged parallel to the anilox roller axis, sprayed onto the anilox roller at different angles is such that at least two adjacent spray devices not at the same angle on the anilox roller are directed.
  • the part to be cleaned is no longer in the Lay cleaning liquid, but above a level to keep the cleaning liquid and the part from at least five fixed spray devices under different Spraying angles with cleaning fluid can be achieved be that the cleaning liquid on the to be cleaned Part of the adhering paint infiltrates.
  • the cleaning liquid on the to be cleaned Part of the adhering paint infiltrates.
  • the invention by means of flushing cleaning fluid under different Angle sprayed on the part so that the cleaning liquid in any case between paint and what needs to be cleaned Part can penetrate. Due to the different angles the fact that in some places between There is a tiny gap to be cleaned and paint residue is. The different spray angles are an opportunity increases that the cleaning liquid in such a gap can penetrate and thereby migrate the paint residues and so to speak can separate from behind.
  • the spraying devices Since the spraying devices have the cleaning liquid above a level of the cleaning liquid in the washroom on the Spray part and since the spray devices are fixed, can this is done under comparatively high pressure. Because of this high pressure, the cleaning liquid can remove the paint residues easier to hike behind.
  • the holding means have drive means to at least an anilox roller above the level of the cleaning liquid to rotate their roller axis.
  • the at least five spray devices are essentially arranged along an axis parallel to the anilox roller axis.
  • the drive means a have narrow drive roller on which the anilox roller rests.
  • the function of the necessary storage of the Anilox roller above the level of the cleaning liquid in the washroom can be combined with the drive. So it is a separate traction device is not necessary to drive the anilox roller to provide or special gears or the like. It is also advantageous that the drive means are not on special anilox rollers must be adapted; anilox rollers can be used any diameter and relatively any length with one and the same cleaning device can be cleaned.
  • the narrow design of the drive roller is due to the Dead weight of the anilox roller the contact pressure between anilox roller and drive roller big enough to even in the area in a washroom with cleaning fluid for one to ensure slip-free drive.
  • anilox roller on the Drive roller rests with its latched circumference.
  • the Washroom provided a splash guard, which is shaped and arranged is that attached to a journal of the anilox roller Drive wheel is splash-proof.
  • the anilox rollers have for their drive in the printing press usually removable drive wheels on the trunnion the anilox roller is often fixed by means of a roller bearing are.
  • the drive wheels Conventionally, when immersing the Anilox roller in a washing bath the drive wheels removed in advance, to prevent the bearings from being degreased. Because this could cause friction and thus power loss the flexographic press rises; corrosion could also occur occur on the rolling bearings.
  • the splash guard makes it possible the anilox rollers with attached drive wheel in the Store washroom. Because the drive wheel through the splash guard protected from direct spray or other splashes degreasing of the rolling bearings can be prevented. The Cleaning process will be easier overall because of the user the drive wheel before cleaning Remove anilox roller and not again after cleaning must attach to the anilox roller.
  • the axis of the spray devices is arranged obliquely above the anilox roller.
  • the main spray direction is oriented obliquely downwards.
  • the spray devices do not have to be against the Spray gravity.
  • the cleaning liquid drip off the anilox roller easily. Dripping cleaning liquid does not pass through the spray path of the spray devices.
  • this special arrangement achieves that the anilox roller in a simple manner from above into the Washroom can be used. Also for ergonomic reasons this particular arrangement is therefore preferred.
  • the holding means to do so are designed, two anilox rollers in the washroom side by side to keep.
  • the axes of the fixed spray devices can roughly parallel to each other, but further apart than the anilox rollers are aligned. So both can be Use anilox rollers particularly easily in the washroom and remove from this again.
  • the holding means have a cleaning basket made of mesh material, in the small parts in the washroom above the level the cleaning liquid are kept.
  • the cleaning basket is used to hold small parts. By the mesh material is reached that cleaning liquid sprayed from all sides on irregular small parts can be.
  • the holding means have holders, around flat pressure plates in the washroom above the Fixing the level of the cleaning liquid hanging.
  • the printing plates can be designed as flexible printing plates. If more Clean printing plates simultaneously in one washing process , it is preferred if the printing plates are approximately vertical arranged to align the axes of the spray devices become.
  • a rotatable spray arm which is preferably a plurality of nozzles arranged obliquely to the arm axis has, which are directed to the part and their recoil force the spray arm rotates during a spraying process.
  • Such spray arms are for example from conventional household dishwashers known.
  • the spray arms can Support cleaning effect, especially with something coarser small parts in the cleaning basket made of mesh material can be included.
  • the cross section of the Nozzles of the fixed flushing devices is smaller than that the spray arms.
  • the cleaning device a container with a first cleaning liquid and one Containers with a second cleaning or rinsing liquid as well has an inlet line system and an outlet line system, the pipe systems optionally with the first or the second container can be connected.
  • This measure makes it possible to use different cleaning liquids, which, for example, depends on the concentration can distinguish here, or a cleaning liquid and a flushing liquid in succession through the same inlet and Outlet pipe system in a closed circuit with to connect the washroom.
  • the container as a respective separate elements outside of the washroom and the Line systems containing washing unit are provided.
  • the Containers can be replaced at any time, for example against containers with a fresh cleaning liquid or with a cleaning liquid of a different concentration. Furthermore, the containers can be designed differently. Overall, the greatest possible flexibility of the cleaning device reached.
  • the cleaning device can therefore be made particularly flexible overall.
  • At least one of the containers with a stirring device and / or a heating device.
  • a stirring device can be used, one if necessary after a longer period of time inside the container cleaning liquid present in two different phases mix again before the actual washing process.
  • a heater can target the temperature of the cleaning fluid Be influenced, especially to To influence foaming of the cleaning liquid favorably.
  • the heating device is on has heating element mounted in a float and over an inlet of the container is insertable.
  • the Heater can change cleaning fluid can be removed via the inlet. Furthermore, a heater can be used for different containers.
  • a cleaning device is generally designated 10.
  • the cleaning device 10 has a washing unit 12.
  • the washing unit 12 has a lid 14 on its upper side, which can be folded back and a control panel 16.
  • the control panel can also be arranged elsewhere.
  • hose connections B are on the washing unit 12 and C provided to which two hoses 22 are connected are.
  • the hose 22 connected to the hose connection B is connected to a cock 24 arranged approximately at the bottom, the other Hose 22 with an inlet 26 arranged on the top one Container 28 connected.
  • a second container with identical dimensions 28 ' is also provided with a tap 24' and an inlet 26 '.
  • a cleaning liquid 40 is in the containers 28, 28 ' or contain a cleaning or rinsing liquid 40 '.
  • a heater 29a is indicated schematically in the container 28, which can serve the existing in the container 28 To heat cleaning liquid 40.
  • both containers 28, 28 'can also each have one Heater 29a and / or a stirring device 29b equipped his.
  • FIG. 2 A schematic representation of the interior of the washing unit 12 is shown in FIG. 2.
  • the washing unit 12 has a washing room 30, the bottom of which 32 is inclined like a drain and opens into a filter insert, in which a removable filter 34 is inserted.
  • a boiler room 36 in the cleaning liquid 40 to a cleaning liquid level 38 can be filled.
  • heating coils 42 provided, which felt in the boiler room 36 Can heat cleaning liquid 40.
  • the heating chamber 36 is connected via an inlet pump 44 to the Hose connection B connected and via an outlet pump 46 with the hose connection C.
  • a spray pump 48 is also provided, which is equipped with a spray supply system A is connected and cleaning fluid too Promotes spray devices to be described in more detail.
  • the pump 44 cleaning liquid promotes in the boiler room 36
  • Arrangement may be provided in which the cleaning liquid Pumpless into the washing unit 12 via a hose connection B ′ is promoted, preferably then in the washroom 30, from where the cleaning liquid first flows into the heating chamber 36, where it is heated.
  • Spray arm 50 In the washroom 30 there are a lower spray arm 50 and an upper one Spray arm 52 arranged.
  • the spray arms 50, 52 are with the spray supply system A connected and rotatably mounted.
  • Nozzles 53 are arranged on the spray arms so that the spray arms 50, 52nd driven and thus rotated by recoil forces that are generated by cleaning fluid 40 over the Nozzles 53 is ejected.
  • Each of the longitudinal spray devices 54 has a plurality (in which embodiment shown nine) individual flushing devices 56 on.
  • the spray devices 56 are over the longitudinal spray device 54 each connected to the spray supply system A. Cleaning liquid supplied into the longitudinal spray device 54 is fed to each of the sprayers 56 which each have a nozzle 57.
  • the nozzles 57 of the spray devices 56 of each longitudinal spray device 54 are all under slightly different Angles 58 arranged.
  • the spraying devices generally spray 56 all diagonally downwards, but as I said under different Angles, with at least two neighboring ones Spray devices 56 do not have the same angle 58.
  • the washroom 30 there are also schematically indicated holding means 60 provided for parts to be cleaned, in such a way that that the parts to be cleaned above the level 38 of the cleaning liquid 40 are kept in the washroom 30.
  • the holding means 60 comprise a pair of holders 62 for two anilox rollers 64, as shown in FIGS. 2 and 3.
  • Each anilox roller 64 generally comprises at both ends End pin 66, a gear 68 being detachable on an end pin 66 is attached.
  • the bracket 62 includes one of a side wall of the washroom 30 to the other side wall reaching cross member 70 which a bearing journal 66 rests without gear 68.
  • the cross member 70 and the drive rollers 72 are arranged so that the anilox rollers 64 are mounted approximately horizontally, namely aligned in a position obliquely below and approximately parallel to their respective longitudinal spray device 54.
  • the holder 62 for two anilox rollers 64 thus includes one Cross member 70, which is provided with not specified grooves can be to accommodate the journal, as well as two drive wheels 72, via a motor 74 and a traction device or via two motors 74 can be driven.
  • the two anilox rollers 64 are next to each other at about the same height.
  • the gear 68 is not removed from the journal 66.
  • a splash guard 76 is provided, whose shape is shown in the side view in Fig. 4.
  • the splash guard 76 comprises an approximately semicircular recess or notch 78 on its lower edge.
  • the notch 78 reaches over the journal 66 and thus protects the gear 68 to cleaning fluid from the spray devices 56 or the spray arm 52.
  • Spray arms 50 are two arranged approximately parallel to the cross member 70 further cross members 80 arranged on which a cleaning basket 82 of mesh material for small parts 81 rests.
  • the small parts 81 are mainly from below through the Nozzles 53 of the spray arm 50 and from above through the nozzles 53 spray arm 52 sprayed with cleaning liquid 40.
  • anilox rollers 64 are mainly sprayed by sprayers 56 at high pressure, wherein an application of cleaning liquid 40 over the entire Scope of the anilox rollers 64 is achieved in that these are rotated by the drive rollers 72.
  • Fig. 5 is finally shown schematically that an optional Bracket 84 can be used in the washroom 30 with the a plurality of printing plates 82 in parallel alignment in FIG the laundry room 30 can be arranged hanging.
  • the printing plates 56 are then such that the spray devices 56 between spray the pressure plates 86.
  • the tap 24, the hose 22 and the hose connector B cleaning liquid 40 inside the washing unit 12 promoted, either by gravity or by pump action.
  • the cleaning liquid 40 can well stirred beforehand by the stirring device 29b and / or have been preheated by the heater 29a.
  • the cleaning liquid 40 in the boiler room 36 at least heated by means of the heating coil 42.
  • the spray supply system A via the pump 48 with the heated Cleaning liquid 38 supplied.
  • the variety of spray devices 56 spray on arranged in the washroom 30 Anilox rollers 64, possibly also in the washroom 30 arranged pressure plates 86.
  • the spray arms 50, 52 spray assistively on the anilox rollers 64 or the pressure plates 86, but also on small parts 81 in the cleaning basket 82.
  • the pump 48 is switched off again.
  • the ones in Boiler room 36 collecting cleaning liquid 40 is on the Pump 46 is pumped into inlet 26 of container 28.
  • the hoses 22 with the second container 28 'coupled For this purpose, the hoses 22 with pluggable hose connectors.
  • the rinsing or second cleaning process is the same As with the cleaning liquid 40 from the first container 28
  • the rinsing or second cleaning liquid 40 'in the pumped back second container 28 ' is a washing process finished and the parts of the flexographic printing machine, especially the Anilox rollers 64, the small parts 81 and the printing plates 86 can be removed from the washroom 30 after the Lid 14 has been folded up.
  • FIG. 6 is a schematic sectional view through a container 28 with one inserted via the inlet 26 of the container 28 Heater 29a 'shown.
  • the heating device 29a comprises a schematically indicated one Heating coil 90, which is in a tube 92 which is at least open from below is stored.
  • the tube 92 is in turn on a float 94, for example made of polystyrene.
  • the float 94 is like that designed that the tube 92 with the heating coil stored therein 90 on the surface of a cleaning liquid filled into the container 28 swims.
  • the heating coil 90 is connected via a power supply cable 96 is led through the inlet 26, connected to a power plug 98.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP99119300A 1998-10-02 1999-09-29 Dispositif et procédé de nettoyage des éléments des machines à imprimer Expired - Lifetime EP0990521B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19845367A DE19845367C2 (de) 1998-10-02 1998-10-02 Verfahren und Vorrichtung zum Reinigen von Teilen von Druckmaschinen
DE19845367 1998-10-02

Publications (3)

Publication Number Publication Date
EP0990521A2 true EP0990521A2 (fr) 2000-04-05
EP0990521A3 EP0990521A3 (fr) 2000-10-04
EP0990521B1 EP0990521B1 (fr) 2002-08-28

Family

ID=7883159

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119300A Expired - Lifetime EP0990521B1 (fr) 1998-10-02 1999-09-29 Dispositif et procédé de nettoyage des éléments des machines à imprimer

Country Status (4)

Country Link
EP (1) EP0990521B1 (fr)
AT (1) ATE222856T1 (fr)
DE (2) DE19845367C2 (fr)
DK (1) DK0990521T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1013647A3 (fr) * 2000-08-17 2002-05-07 Cockerill Rech & Dev Dispositif d'application de liquide de revetement sur une tole.
CN115284740A (zh) * 2022-08-18 2022-11-04 浙江大洪包装科技股份有限公司 一种印刷用的展色机
EP4243997A4 (fr) * 2020-11-10 2024-09-04 Ecochem Australia Pty Ltd Systèmes et procédés destinés au nettoyage automatique de convertisseurs avec des fluides chauffés

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10203134B4 (de) * 2002-01-25 2013-05-23 SMB Schröder Maschinenbau GmbH Waschmaschine für die Reinigung von Druckhülsen
DE102004005576B4 (de) * 2003-02-25 2021-03-11 Heidelberger Druckmaschinen Ag Verfahren zum Betrieb einer Lackier- oder Druckmaschine
DE102007025713B4 (de) 2007-06-01 2019-02-14 Koenig & Bauer Ag Einrichtung zur Reinigung von Druckmaschinenzylinderoberflächen mit einer Oberflächenstruktur
DE102014008123B3 (de) * 2014-06-06 2015-11-05 SMB Schröder Maschinenbau GmbH Waschmaschine zur Reinigung von flexiblen Druckplatten

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE192031C (fr) *
FR1012324A (fr) * 1950-02-10 1952-07-08 Traitement Interne Des Chaudie Machine pour le nettoyage des rouleaux de machines d'impression
GB1019278A (en) * 1963-04-02 1966-02-02 Gustav Upmeier Washing apparatus
EP0057966A1 (fr) * 1981-02-11 1982-08-18 Stork Brabant B.V. Procédé et dispositif pour nettoyer un support de racle
EP0111708A2 (fr) * 1982-12-22 1984-06-27 International Business Machines Corporation Appareil de lavage pour écrans de sérigraphie
DE9106454U1 (de) * 1990-05-28 1991-08-01 Kongstad, Henning, Skoedstrup Reinigungsvorrichtung
WO1992001568A1 (fr) * 1990-07-26 1992-02-06 Container Graphics Corporation Procede et dispositif pour le nettoyage des planches d'impression rotatives

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8102684U1 (de) * 1981-02-03 1981-07-23 Pleines, Hanns Dieter, 6000 Frankfurt Vorrichtung zum reinigen von klischees mittels buersten
EP0180541B1 (fr) * 1984-10-31 1989-11-02 H. Schneebeli & Co.AG Procédé et dispositif de nettoyage d'une forme d'impression
DE4221527C2 (de) * 1992-07-01 1994-08-04 Roland Man Druckmasch Vorrichtung zum Reinigen eines Walzenspaltes in Rotationsdruckmaschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE192031C (fr) *
FR1012324A (fr) * 1950-02-10 1952-07-08 Traitement Interne Des Chaudie Machine pour le nettoyage des rouleaux de machines d'impression
GB1019278A (en) * 1963-04-02 1966-02-02 Gustav Upmeier Washing apparatus
EP0057966A1 (fr) * 1981-02-11 1982-08-18 Stork Brabant B.V. Procédé et dispositif pour nettoyer un support de racle
EP0111708A2 (fr) * 1982-12-22 1984-06-27 International Business Machines Corporation Appareil de lavage pour écrans de sérigraphie
DE9106454U1 (de) * 1990-05-28 1991-08-01 Kongstad, Henning, Skoedstrup Reinigungsvorrichtung
WO1992001568A1 (fr) * 1990-07-26 1992-02-06 Container Graphics Corporation Procede et dispositif pour le nettoyage des planches d'impression rotatives

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1013647A3 (fr) * 2000-08-17 2002-05-07 Cockerill Rech & Dev Dispositif d'application de liquide de revetement sur une tole.
EP4243997A4 (fr) * 2020-11-10 2024-09-04 Ecochem Australia Pty Ltd Systèmes et procédés destinés au nettoyage automatique de convertisseurs avec des fluides chauffés
CN115284740A (zh) * 2022-08-18 2022-11-04 浙江大洪包装科技股份有限公司 一种印刷用的展色机

Also Published As

Publication number Publication date
DE19845367A1 (de) 2000-04-06
DK0990521T3 (da) 2002-10-07
EP0990521A3 (fr) 2000-10-04
DE59902452D1 (de) 2002-10-02
EP0990521B1 (fr) 2002-08-28
ATE222856T1 (de) 2002-09-15
DE19845367C2 (de) 2002-12-19

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