EP2170606B1 - Filtration pour machines d'impression - Google Patents

Filtration pour machines d'impression Download PDF

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Publication number
EP2170606B1
EP2170606B1 EP08784855A EP08784855A EP2170606B1 EP 2170606 B1 EP2170606 B1 EP 2170606B1 EP 08784855 A EP08784855 A EP 08784855A EP 08784855 A EP08784855 A EP 08784855A EP 2170606 B1 EP2170606 B1 EP 2170606B1
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EP
European Patent Office
Prior art keywords
dampening solution
dampening
solution
circuit
flow
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.)
Not-in-force
Application number
EP08784855A
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German (de)
English (en)
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EP2170606A2 (fr
Inventor
Dietger Hesekamp
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.)
Technotrans SE
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Technotrans SE
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Publication date
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Publication of EP2170606A2 publication Critical patent/EP2170606A2/fr
Application granted granted Critical
Publication of EP2170606B1 publication Critical patent/EP2170606B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/32—Ducts, containers, or like supply devices for liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0054—Devices for controlling dampening
    • 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 invention relates to a dampening solution circuit for a printing press and to a printing press with such a dampening solution circuit.
  • dampening units are used in offset printing machines.
  • the task of the dampening unit is to apply a dampening solution evenly to the printing plate of an offset printing press.
  • the dampening solution is e.g. via a water box, nozzles or similarly applied to a first roller.
  • a water film is applied as uniformly as possible by the roller over various other rollers on the printing plate of the printing press.
  • the soiled dampening solution is generally removed, e.g. cleaned by filtration.
  • the DE 100 61 870 A1 discloses a cleaning system in which a feed pump removes fountain solution from a buffer and pumps the dampening water into a cleaning unit. In the cleaning unit, a further pump is provided, which presses the fountain solution through a pressure filter. According to the disclosure of this document, the entire dampening water flow through the Guided cleaning unit. Such a cleaning unit must therefore have a certain size and is relatively expensive to produce.
  • the JP 11 048459 describes a device for cleaning cleaning solution of a printing press with a separation tank with a regeneration device with a coarse filter and filter tanks.
  • a cleaning unit in which the fountain solution from a central tank, from which the printing units of a printing press are fed, is conveyed by means of a pump and passed through various cleaning devices.
  • the cleaned fountain solution is returned to the central tank after cleaning.
  • Such a device has the disadvantage that the fountain solution via a drain from the central. Tank must be promoted, which is regularly arranged in a certain area of the central tank and therefore only in this particular area withdrawing fountain solution, so that dampening water from other areas in the central tank proportionately guided to a lesser extent by the cleaning device and therefore not cleaned. This applies, for example, to the dampening water in the region of a dampening water level in the central tank, since the flow is generally arranged clearly below the dampening water level.
  • a first aspect of the invention relates to a dampening solution circuit for a printing press, the dampening solution circuit having at least one dampening unit, a fountain solution main container, a dampening solution supply and a dampening solution return, wherein the dampening agent supply between the fountain solution main container and the at least one dampening unit is arranged such that the at least one dampening unit dampening solution can be fed to the fountain solution main container via the dampening solution supply, wherein the dampening solution return between the at least one dampening unit and the fountain solution main container is arranged such that dampening solution from the at least one dampening unit on the dampening solution return in the Dampening solution feed is traceable, characterized in that the dampening solution circuit is designed such that a dampening main stream coming from the at least one dampening unit can be divided into a first dampening solution part stream and into a second dampening solution part stream, wherein the second dampening solution part stream can be generated temporally parallel and spatially separated from
  • dampening solution circuit is an open circuit, in the sense that the circulating dampening solution is continuously circulated during operation.
  • a “return to the dampening solution supply” can be done directly or the dampening solution can be recycled at another point in the circulation such that the dampening solution passes on its subsequent path in the dampening solution supply.
  • the open circuit a portion of the dampening solution can be transferred to the printing process, for example via the moistening during the printing process, and then usually can no longer be recycled. More dampening solution can be lost in the cleaning device, for example, the circulation.
  • dampening solution is preferably replaced in the circulation, wherein the dampening solution, which is fed to the fountain solution, is preferably checked for its quality. This is preferably done continuously.
  • quality preferably includes one Composition of the dampening solution (for example, a water-alcohol ratio) and / or the temperature and / or the load with color particles and / or the like.
  • the dampening solution circuit is preferably designed such that the monitoring and / or the control and control of the dampening solution quality and quantity takes place in the component of the dampening solution circuit, which is referred to herein as the fountain solution main container.
  • dampening solution main flow dampening solution part flow usually designate flow volumes per unit time.
  • a further advantageous embodiment relates to a dampening solution circuit in which the dampening solution recycling is designed such that no dampening solution pump is provided between dampening unit and dampening solution cleaning device.
  • the term fountain solution pump primarily dampening means conveying devices are referred to, which are adapted to cause a pressure change in a volume unit in the dampening solution, which is adapted to promote the dampening solution to a different height level. Therefore, for example, conveyors in which only a negligible pressure difference is generated, in which, for example, the dampening solution is always exposed to the same atmospheric pressure as in an Archimedean spiral or other funding, which cause no turbulence in dampening solution.
  • dampening solution circuit which is designed such that the second dampening solution partial flow does not pass through a cleaning device on the way into the dampening solution supply.
  • a further advantageous embodiment relates to such a dampening solution circuit in which the ratio between the first dampening solution sub-stream and the second dampening solution sub-stream can be controlled and / or regulated.
  • a design of a dampening solution circuit in which the first dampening solution partial flow can be regulated on the basis of a determined difference between the main fountain solution stream and the second dampening solution sub-stream.
  • a regulation of the second dampening solution sub-stream is preferably carried out "dampening-based", i. regardless of the first dampening solution part stream to be cleaned.
  • the control prioritizes the operation of the dampening unit. Therefore, a cleaning device can be installed in an existing dampening circuit without affecting the dampening system control.
  • such a dampening solution circuit preferably has a design in which the dampening solution return further comprises an intermediate container and a removal device, which are permitted such that dampening solution in the intermediate container, coming from one or more dampening units, is collectable, and that the first dampening solution partial stream by means of Removal device is derivable from the intermediate container.
  • the dampening solution circuit and the intermediate container are designed such that adjust different concentrations of impurities in the dampening solution at different locations of the intermediate container in the dampening solution during operation of the dampening solution circuit (eg due to different flow conditions in the intermediate container and / or different density of dampening solution and impurities).
  • the removal device in the dampening solution is preferably arranged at a point at which a higher impurity concentration is established during operation of the dampening solution circuit than at other points in the intermediate container.
  • Different flow conditions in different areas of the Intermediate container can be generated, for example by inducing a rotating flow, with impurities depending on the density difference in relation to dampening in the center of a vortex generated or in the radial direction outside in the edge region of the vortex reach a higher concentration than in other areas of the flow.
  • the intermediate container preferably has a volume of between 20 l and 300 l, more preferably between 50 l and 150 l.
  • the intermediate container may have a filling volume of between 100 and 150 liters.
  • volume size and / or flow duration are preferably dimensioned such that the average residence time of the dampening solution is between half a minute and 3 minutes, more preferably about 1 minute.
  • a plurality of removal devices are preferably provided, which are arranged in the dampening solution at a plurality of locations with high concentrations of different impurities such that dampening solution substreams with different impurities are supplied to different purification devices.
  • color residues and / or oily residues in the area of the fountain solution surface can be removed, and pressure powder, which settles more on the bottom, can preferably be removed together with a dampening solution stream in the bottom area of the intermediate container.
  • a pump is preferably provided in the intermediate container, which returns dampening solution from the intermediate container in the dampening solution supply, wherein preferably at least a portion of the dampening solution is traceable into the fountain solution main container.
  • the pump can be provided at a location at which the first dampening solution partial flow after passing through the dampening solution cleaning device already back to the second Feuchtstoffteilstrom is united (eg when the second dampening solution partial stream is returned after cleaning in the intermediate tank.)
  • the pump can only promote the second dampening solution part stream (eg if the second dampening solution partial stream is introduced directly into the fountain solution main tank).
  • the dampening solution return opens into the fountain solution main container.
  • dampening solution circuit in which the cleaning branch opens into the intermediate container behind the dampening solution cleaning unit in the conveying direction is preferred.
  • a further advantageous embodiment relates to such a dampening solution circuit in which the cleaning branch is connected directly to the fountain solution main container, so that the first dampening solution partial stream can be introduced directly into the dampening solution main container after the dampening solution cleaning device.
  • the removal device is designed in such a way that dampening solution can be removed via the removal device at different fill levels in the intermediate container in the region of the dampening surface.
  • a removal device can be designed so controllable that, for example, a removal opening of the removal device moves with changing level of the fountain solution in the intermediate container up or down. This can be done for example by a surface skimmer, the removal opening of the wandering dampening surface is tracked via a float. It is conceivable an electronic control of the position of such a removal opening, wherein the control is preferably carried out in response to signals from one or more level sensors.
  • a further advantageous embodiment relates to a dampening solution circuit in which the removal device has a discharge edge, which is arranged below the fountain solution surface such that the discharge of the dampening solution takes place by means of flow of the dampening solution over the outflow edge.
  • the outflow edge can preferably be arranged as a function of the filling level in the intermediate container at a certain distance from the dampening solution surface.
  • a drainage edge may e.g. be the edge of a pipe or a hose, which can be moved from below to the fountain solution surface. It is preferred if the edge is designed and can be moved to the dampening surface such that it does not have any areas projecting beyond the dampening surface, since such protruding areas are easily contaminated.
  • the outflow edge is adjustable via a float or via an above-mentioned electronic device at a preferred distance from the dampening surface.
  • the outflow edge it is preferable for the outflow edge to be adjustable over a distance range at different distances to the dampening surface, so that over the length of the outflow edge in conjunction with the level reaching beyond the edge, a defined dampening agent outflow can be generated.
  • such a dampening solution circuit has a design in which the intermediate container is divided by an intermediate wall into an area of influence and an outflow region, wherein the introduction of the dampening solution coming from the dampening unit or dampers takes place in the area of influence, wherein the intermediate wall has a flow opening through which a Flow between the influence area and the discharge area is made possible, and wherein the flow opening is arranged below a minimum filling level of the dampening solution in the area of influence.
  • This allows a separation between the area of influence and the discharge area, so that the dampening solution before it flows through the flow opening, remains sufficiently long in the sphere of influence, so that impurities can rise or settle to the dampening surface.
  • the influence range preferably has a volume of between 20 l and 300 l, more preferably between 50 l and 150 l.
  • an influence range size of 50 l may be preferred, and for roller machines having a roll width of about 2 m, the influence range may have a fill volume of between 100 l and 150 l.
  • the volume size and / or flow duration are preferably dimensioned such that the average residence time of the dampening solution is within the range of influence between half a minute and 3 minutes, more preferably about 1 minute.
  • a plurality of removal devices are preferably provided in the area of influence, which are arranged in the dampening solution at several points with high concentrations of different impurities such that dampening solution substreams with different impurities are supplied to different cleaning devices.
  • color residues and / or oily residues in the area of the fountain solution surface can be removed, and pressure powder, which settles more on the bottom, can preferably be removed together with a dampening solution stream in the bottom area of the intermediate container.
  • the flow opening is preferably arranged in the bottom region of the influence region, since the impurities usually have a lower density than the dampening solution and therefore rise to the surface.
  • the volume of the influence area is preferably dimensioned such that an average time of residence of the dampening solution in the area of influence is ensured, which makes it possible to drive on lighter components such as oil and dyes.
  • Preferred is an upwardly tapering design of the area of influence which causes upwardly rising impurities to accumulate concentrated in the tapered area.
  • a separator may, in a preferred embodiment, e.g. be provided in the form of a centrifuge.
  • a further advantageous embodiment relates to such a dampening solution circuit in which the cleaning unit has a cross-flow filter.
  • cross-flow filtration a flow on a suspension side is generated substantially parallel to a filter medium, wherein the filter medium of the liquid is transversely permeable, while the impurities are preferably carried away largely with the flow.
  • the advantage of the cross-flow filtration is that a deposition of impurities on the filter medium is prevented or made more difficult by the flow parallel to the filter medium.
  • preferably permanent filter materials are used. Also conceivable is the additional or alternative use of consuming filter materials.
  • a design of a dampening solution circuit in which the cleaning device has a filter unit with exchangeable filters.
  • filters may e.g. be provided in the form of filter bags or filter mats. Conceivable are also other filter forms. The advantage of these embodiments lies in a favorable device price.
  • such a dampening solution circuit preferably has a design in which the cleaning device is constructed as a cascade system.
  • Another aspect of the invention relates to a printing machine with such a dampening solution circuit.
  • Fig.1 shows a schematic representation of a dampening solution circuit 1 according to the invention, which is helpful for understanding the invention.
  • a dampening solution main container 3 in which a certain amount of ready-dampening solution is provided, which by means of a pump not shown in more detail the dampening solution via a dampening solution supply 4 a Dampening unit 2 feeds.
  • a dampening solution supply 4 a Dampening unit 2 feeds.
  • the dampening solution return 5 may have various components, such as pipes, reservoir etc.
  • a dampening solution circuit is shown, which is helpful for understanding the invention.
  • a first area of dampening solution recirculation 5 opens into a cleaning branch 6, so that the entire main fountain solution flow F H is passed through a dampening solution cleaning device 7.
  • the dampening solution is cleaned by various, not shown devices of impurities.
  • the cleaning branch 6 opens in a second section of dampening solution recirculation 5, so that the main fountain solution flow F H , is returned to the fountain solution main container 3.
  • dampening solution circuit shown no pump is provided in the flow direction between the dampening units and the dampening solution cleaning device 7, so that the dampening solution is supplied by the dampening units 2 solely on account of the gravity of the dampening solution cleaning device 7, as can also be in the embodiments of the invention.
  • This has the advantage that the formation of an emulsion of dampening solution and color components contained and / or oily impurities is avoided.
  • Fig. 2 shows a schematic representation of a preferred embodiment of the dampening solution circuit 1 according to the invention.
  • an intermediate container 8 is provided in the dampening solution recirculation 5.
  • the main fountain solution flow F H coming from the dampening units 2 is fed to the intermediate container 8 solely on the basis of gravity.
  • dampening solution 8 is introduced from all the dampening units 2 shown in the intermediate container. The fountain solution collected in the intermediate container 8 passes through the intermediate container 8, and is then fed to the fountain solution main container 3.
  • the dampening solution recirculation 5 is designed such that the main fountain solution stream is both fed to the intermediate container 8 in its entirety and forwarded from this into the fountain solution main container 3.
  • a cleaning branch 6 is provided, which derives a first dampening solution part stream F T1 from the fountain solution main stream F H , passes through a dampening solution cleaning device 7 and then back into the intermediate container 8.
  • the cleaning branch 6 is designed so that the first dampening solution part stream F T1 is only part of the fountain solution main flow F H , so that in the intermediate container 8, a second dampening solution partial flow F T2 is formed, which without passing through the cleaning device in the fountain solution main three is returned.
  • the first dampening solution partial flow F T1 of the dampening solution cleaning device 7 is supplied solely on the basis of gravity.
  • Such a device has the advantage that the dampening solution is not whisked by pumping, so that the impurities in the dampening solution cleaning device 7 are easy to separate from the dampening solution.
  • a removal device 9 which takes the dampening solution from the intermediate container 8, and a preferred design of the intermediate container will be described below with reference to FIGS. 4 and 5 described.
  • the first dampening solution partial flow F T 1 is taken both from the intermediate container and also returned to this. According to another, not shown, preferred embodiment, the first dampening solution partial flow F T1 is not returned to the intermediate container 8 but directly into the fountain solution main container 3.
  • Fig. 3 shows a schematic representation of a preferred further embodiment of the dampening solution cycle according to the invention.
  • This embodiment substantially corresponds to the embodiment which is described in FIG Fig. 2 is shown so that in order to avoid repetition, the elements already described will not be described again.
  • the design of the dampening solution cleaning device 7 is shown in more detail. It can be seen that the cleaning device preferably has a plurality of cleaning elements. These may for example comprise a separator and / or a cross-flow filter and / or a filter unit and / or a cascade system.
  • the individual cleaning elements can be arranged sequentially, parallel, partially sequential and partially parallel and / or cascading.
  • the dampening solution cleaning device 7 on the input side a pump which presses the dampening solution, for example by a filter unit.
  • a pump which presses the dampening solution
  • no pump is provided between dampening unit and cleaning device.
  • preferred embodiments can also be provided with a pump, in particular if the pump is designed such that dampening solution and impurities are not whisked together in such a way that an emulsion is produced. This can be achieved, for example, by particularly slow running pumps.
  • a pump it is preferable (in addition to or as an alternative to the described pump design), to provide the pump at a location below the fountain solution level.
  • Fig. 4 shows a schematic representation of a preferred intermediate container 8 with a preferred removal device 9 in cross section.
  • Such a preferred intermediate container 8 can be used in a dampening solution circuit 1 described above.
  • the illustrated intermediate container has an area of influence 81 and an outflow area 82, which are each preferably trough-shaped. Furthermore, influence region 81 and / or outflow region 82 can also be executed closed. In this case, a part of the dampening solution recirculation 5 coming from the dampening unit 2 opens in the area of influence 81.
  • the mouth of the dampening solution return, through which the main fountain solution flow F H is directed into the area of influence 81, is shown schematically as a water tap-like structure above the dampening surface in the area of influence 81
  • the mouth may be preferable to arrange the mouth below the dampening surface FO, eg in the bottom area of the influence area.
  • the mouth is introduced into the sphere of influence, that preferred flow conditions are created in the area of influence, which promote separation of the impurities from the dampening solution.
  • rising and / or sinking of impurity particles or fluids in the dampening solution are made possible or promoted, so that corresponding impurities collect in certain floor areas or in certain areas of the dampening surface FO.
  • a similar effect can be produced by causing a rotating flow, with impurities having smaller or larger densities in the center of a generated vortex or in the radially outward direction in the edge region of the vortex reaching a higher concentration than in other regions of the influence region 81.
  • a rest basin in which a particularly preferred removal device 9 is arranged such that its removal opening is arranged just below the dampening solution level.
  • the removal opening is with respect to Fig. 5 described below.
  • influence range 81 at the in Fig. 4 illustrated embodiment of an outflow region 82 via an intermediate wall 83 is formed separately.
  • the influence region 81 and outflow region 82 are preferably connected to one another in the bottom region 82 of the influence region 81 via a flow opening 84.
  • the flow opening 84 is preferably formed in the intermediate wall 83.
  • a second dampening solution part flow F T2 flows through the flow opening 84.
  • the first dampening solution part flow F T1 flows purified into the outflow area 82 in the illustrated preferred embodiment. It is also conceivable to direct the cleaned first dampening solution sub-stream F T1 directly into the main fountain solution container or to transfer the first dampening solution sub-stream F T1 into to initiate the area of influence 81, so that the entire main fountain solution flow F TH flows through the flow opening 84. Furthermore, it is conceivable to carry out the intermediate container with no intermediate wall or to provide several intermediate walls in a labyrinthine manner.
  • Fig. 5 shows an enlarged view of the sampling device 9 from Fig. 4 in the region of the removal opening 91.
  • the removal device is designed so that the fountain solution of gravity following in the removal opening runs.
  • the flow conditions are designed so that impurities with a lower density occur in a particularly high concentration in the region of the dampening surface FO and flow together with the dampening solution via the outflow edge 91 of the removal opening 91.
  • a first dampening solution partial flow F T1 generated in this way therefore has a particularly high contamination with impurities. This has the advantageous effect that a small dampening solution partial flow F T1 leads to a high cleaning effect.
  • the drainage edge is arranged at a distance .DELTA.H to the dampening surface FO. It is preferred if the removal device is designed such that the distance .DELTA.H can be variably set or regulated to different values, so that the size of the volume flow of the first dampening solution partial flow F T1 can be adjusted.
  • the removal device 9 is adjustable in the influence region 81 over a variable range, following the level of the dampening solution, so that the removal device can be operated at different fill levels.
  • An adjustment and / or regulation of the removal device 9 can thereby mechanically (eg via a float) or electronically in response to level signals from one or more level sensors.
  • level sensors can record the pressure in the dampening solution and convert it into a signal or via an electrical resistance measurement. Conceivable here are any forms of sensors.
  • the removal device is tubular, so that a substantially circular removal opening 91 is provided.
  • Conceivable are any other forms of a withdrawal edge. Such as, for example, a substantially planar, height-adjustable slide, which separates a further region in the area of influence into which the first dampening solution partial flow F T1 flows in the direction of the dampening solution cleaning device 7.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Special Spraying Apparatus (AREA)

Claims (15)

  1. Circuit d'agent de mouillage (1) pour une machine d'impression, le circuit d'agent de mouillage (1) comprenant au moins un dispositif de mouillage (2), un récipient principal d'agent de mouillage (3), une alimentation d'agent de mouillage (4) et un recyclage d'agent de mouillage (5),
    l'alimentation d'agent de mouillage (4) étant disposée entre le récipient principal d'agent de mouillage (3) et le au moins un dispositif de mouillage (2) de telle sorte que l'agent de mouillage peut être distribué au au moins un dispositif de mouillage (2) depuis le récipient principal d'agent de mouillage (3) via l'alimentation d'agent de mouillage (4),
    le recyclage d'agent de mouillage (5) étant disposé entre le au moins un dispositif de mouillage (2) et le récipient principal d'agent de mouillage (3) de telle sorte que l'agent de mouillage provenant du au moins un dispositif de mouillage (2) peut être remis en circulation via le recyclage d'agent de mouillage (5) dans l'alimentation d'agent de mouillage (4),
    caractérisé en ce que le circuit d'agent de mouillage est conçu de telle sorte qu'un courant principal d'agent de mouillage (FH) provenant du au moins un dispositif de mouillage (2) peut être partagé en un premier courant partiel d'agent de mouillage (FT1) et un second courant partiel d'agent de mouillage (FT2), le second courant partiel d'agent de mouillage (FT2) pouvant être produit temporellement parallèlement au premier courant partiel d'agent de mouillage et spatialement séparément de celui-ci,
    dans la zone de recyclage d'agent de mouillage (5) est prévu un branchement de nettoyage (6) avec un dispositif de nettoyage d'agent de mouillage (7), lequel est conçu de telle sorte que pendant le fonctionnement du circuit d'agent de mouillage (1), le premier courant partiel d'agent de mouillage (FT1) peut être dirigé depuis le courant principal d'agent de mouillage (FH) à travers le dispositif de nettoyage d'agent de mouillage (7), et
    le branchement de nettoyage (6) est relié au circuit d'agent de mouillage (1) de telle sorte que l'agent de mouillage nettoyé dans le dispositif de nettoyage d'agent de mouillage (7) peut être remis en circulation dans l'alimentation d'agent de mouillage (4), et
    le circuit d'agent de mouillage est conçu de telle sorte que le second courant partiel d'agent de mouillage (FT2) peut être remis en circulation, sans traverser le dispositif de nettoyage, dans le récipient principal d'agent de mouillage (3).
  2. Circuit d'agent de mouillage (1) selon la revendication 1, le recyclage d'agent de mouillage (5) étant conçu de telle sorte qu'aucune pompe d'agent de mouillage n'est prévue entre le dispositif de mouillage (2) et le dispositif de nettoyage d'agent de mouillage (7).
  3. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, qui est conçu de telle sorte que le second courant partiel d'agent de mouillage ne parcourt aucun dispositif de nettoyage pendant son trajet vers l'alimentation d'agent de mouillage (4).
  4. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, qui est conçu de telle sorte que le rapport entre le premier courant partiel d'agent de mouillage (FT1) et le second courant partiel d'agent de mouillage (FT2) peut être commandé et/ou régulé.
  5. Circuit d'agent de mouillage (1) selon la revendication 4, qui est conçu de telle sorte que le premier courant partiel d'agent de mouillage (FT1) est régulable au moyen d'une différence déterminée entre le courant principal d'agent de mouillage (FH) et le second courant partiel d'agent de mouillage (FT2).
  6. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, le recyclage d'agent de mouillage (5) présentant de plus un récipient intermédiaire (8) et un dispositif de prélèvement (9) qui sont conçus de telle sorte que l'agent de mouillage peut être collecté dans le récipient intermédiaire (8) en provenance d'un ou de plusieurs dispositifs de mouillage (2), et de telle sorte que le premier courant partiel d'agent de mouillage (FT1) peut être évacué du récipient intermédiaire (8) au moyen du dispositif de prélèvement (9).
  7. Circuit d'agent de mouillage (1) selon la revendication 6, le branchement de nettoyage (6) débouchant dans le sens de transport à l'arrière de l'unité de nettoyage d'agent de mouillage dans le récipient intermédiaire (8).
  8. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, le branchement de nettoyage (6) étant relié directement au récipient principal d'agent de mouillage (3), de sorte que le premier courant partiel d'agent de mouillage (FT1) après le dispositif de nettoyage d'agent de mouillage (7) peut être introduit directement dans le récipient principal d'agent de mouillage (3).
  9. Circuit d'agent de mouillage (1) selon les revendications 6 à 8, dans la mesure où la revendication 8 est dépendante des revendications 6 et 7, le dispositif de prélèvement (9) étant conçu de telle sorte que l'agent de mouillage peut être prélevé via le dispositif de prélèvement (9) à différents niveaux de remplissage dans le récipient intermédiaire (8) dans la zone de la surface d'agent de mouillage (FO).
  10. Circuit d'agent de mouillage (1) selon l'une des revendications 6 à 9, le dispositif de prélèvement (9) présentant une arête d'écoulement (92) qui est disposée en dessous de la surface d'agent de mouillage (FO), de sorte que l'évacuation de l'agent de mouillage a lieu par un écoulement de l'agent de mouillage sur l'arête d'écoulement (92).
  11. Circuit d'agent de mouillage (1) selon l'une des revendications 6 à 10, le récipient intermédiaire (8) étant divisé par une paroi intermédiaire (83) en une zone d'écoulement d'entrée (81) et une zone d'écoulement de sortie (82), l'introduction de l'agent de mouillage provenant du ou des dispositifs de mouillage (2) ayant lieu dans la zone d'écoulement d'entrée (81), la paroi intermédiaire (83) présentant une ouverture utile (84) qui permet un écoulement entre la zone d'écoulement d'entrée (81) et la zone d'écoulement de sortie (82), l'ouverture utile (84) étant située en dessous d'un niveau de remplissage minimal de l'agent de mouillage dans la zone d'écoulement d'entrée (81).
  12. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, l'unité de nettoyage comprenant un séparateur.
  13. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, l'unité de nettoyage comprenant un filtre à courant transversal.
  14. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, le dispositif de nettoyage comprenant une unité de filtre avec des filtres échangeables.
  15. Circuit d'agent de mouillage (1) selon l'une des revendications précédentes, le dispositif de nettoyage étant conçu comme un système en cascade.
EP08784855A 2007-07-17 2008-07-17 Filtration pour machines d'impression Not-in-force EP2170606B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007033293A DE102007033293A1 (de) 2007-07-17 2007-07-17 Filtration für Druckmaschinen
PCT/EP2008/005875 WO2009010295A2 (fr) 2007-07-17 2008-07-17 Filtration pour machines d'impression

Publications (2)

Publication Number Publication Date
EP2170606A2 EP2170606A2 (fr) 2010-04-07
EP2170606B1 true EP2170606B1 (fr) 2011-09-21

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EP08784855A Not-in-force EP2170606B1 (fr) 2007-07-17 2008-07-17 Filtration pour machines d'impression

Country Status (6)

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US (1) US20100199866A1 (fr)
EP (1) EP2170606B1 (fr)
CN (1) CN101754857B (fr)
AT (1) ATE525208T1 (fr)
DE (1) DE102007033293A1 (fr)
WO (1) WO2009010295A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9021948B2 (en) * 2011-04-27 2015-05-05 Xerox Corporation Environmental control subsystem for a variable data lithographic apparatus
DE102012008461B4 (de) * 2012-04-26 2014-06-26 Technotrans Ag Feuchtwasserreinigung
EP3059086B2 (fr) † 2015-02-23 2021-01-27 Kraft-Schlötels GmbH Système de filtration de presses
DE102016012852A1 (de) 2016-10-27 2018-05-03 Mohn Media Mohndruck GmbH Verfahren zur Reinigung von Feuchtmitteln und Feuchtmittel-Reinigungsvorrichtung für eine Druckmaschine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4038021A1 (de) * 1990-11-29 1992-06-04 Edelmann Gmbh & Co Kg Einrichtung zum rueckfoerdern eines feuchtmediums aus einem feuchtwerk
JP2906951B2 (ja) * 1993-08-11 1999-06-21 ボールドウィン アジア パシフィック コーポレーション オフセット印刷機の湿し水供給装置
WO1995030468A1 (fr) * 1994-05-10 1995-11-16 Womack International, Inc. Optimisation du fonctionnement d'un systeme de filtrage
JPH1148459A (ja) 1997-08-08 1999-02-23 Mitsubishi Heavy Ind Ltd 洗浄液再生装置
SE0004403L (sv) 2000-11-29 2002-05-30 Ericsson Telefon Ab L M Metoder och anordningar i ett telekommunikationssystem
DE10061870B4 (de) 2000-12-12 2011-06-09 Platsch Gmbh & Co.Kg Verfahren und Vorrichtung zur Filtration von Feuchtmittel
CN2523594Y (zh) * 2002-02-06 2002-12-04 徐更宣 一种胶印机润版装置
US6908558B2 (en) * 2003-03-19 2005-06-21 David J. Stinson Fountain solution recycling system for commercial printers
DE10360051A1 (de) 2003-12-22 2005-07-21 Kohnert, Bärbel Verfahren und Vorrichtung zur Reinigung von Feuchtmittel
DE102004021508B4 (de) * 2004-04-30 2007-04-19 Technotrans Ag Verfahren und Vorrichtung zur Reinigung des Feuchtmittels einer Druckmaschine
DE102005016064A1 (de) * 2004-05-04 2005-11-24 Liebherr-Werk Nenzing Gmbh, Nenzing Hydrauliksystem für Flurförderfahrzeuge
DE202004007062U1 (de) * 2004-05-04 2005-09-15 Liebherr Werk Nenzing Gmbh Nen Hydrauliksystem für Flurförderfahrzeuge

Also Published As

Publication number Publication date
US20100199866A1 (en) 2010-08-12
WO2009010295A2 (fr) 2009-01-22
ATE525208T1 (de) 2011-10-15
CN101754857A (zh) 2010-06-23
DE102007033293A1 (de) 2009-01-29
EP2170606A2 (fr) 2010-04-07
CN101754857B (zh) 2012-05-23
WO2009010295A3 (fr) 2009-04-02

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