EP3702045A1 - Tête d'impression et procédé opérationel correspondant - Google Patents

Tête d'impression et procédé opérationel correspondant Download PDF

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Publication number
EP3702045A1
EP3702045A1 EP20170976.3A EP20170976A EP3702045A1 EP 3702045 A1 EP3702045 A1 EP 3702045A1 EP 20170976 A EP20170976 A EP 20170976A EP 3702045 A1 EP3702045 A1 EP 3702045A1
Authority
EP
European Patent Office
Prior art keywords
print head
agent
detergent
coil
coating agent
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
EP20170976.3A
Other languages
German (de)
English (en)
Other versions
EP3702045B1 (fr
Inventor
Hans-Georg Fritz
Benjamin WÖHR
Marcus Kleiner
Moritz BUBEK
Timo Beyl
Frank Herre
Steffen Sotzny
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.)
Duerr Systems AG
Original Assignee
Duerr Systems 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 Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP3702045A1 publication Critical patent/EP3702045A1/fr
Application granted granted Critical
Publication of EP3702045B1 publication Critical patent/EP3702045B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/149—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet characterised by colour change manifolds or valves therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3053—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a solenoid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/002—Machines or plants for applying coating liquids or other fluent materials by inkjet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the objects being vehicle components, e.g. vehicle bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • B05B15/555—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids discharged by cleaning nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/1707—Conditioning of the inside of ink supply circuits, e.g. flushing during start-up or shut-down
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/21—Ink jet for multi-colour printing
    • B41J2/2103—Features not dealing with the colouring process per se, e.g. construction of printers or heads, driving circuit adaptations

Definitions

  • the invention relates to a print head for applying a coating agent to a component, in particular for painting a motor vehicle body component with a paint.
  • the invention further comprises an operating method for such a print head.
  • rotary atomizers are usually used as the application device, but they have the disadvantage of a limited application efficiency, i.e. only part of the applied paint is deposited on the components to be coated, while the rest of the applied paint has to be disposed of as so-called overspray.
  • print heads as application devices, as they are, for example DE 10 2013 002 412 A1 , US 9,108,424 B2 and DE 10 2010 019 612 A1 are known.
  • print heads do not emit a spray mist of the paint to be applied, but a spatially narrowly limited paint jet which is almost completely reflected on the component to be painted, so that almost no overspray occurs.
  • Such print heads have control valves to control the coating agent discharge, wherein Figure 1 shows a schematic representation of such a control valve arranged in a printhead.
  • nozzle opening 2 in a nozzle plate 1, which is either released or blocked by the control valve.
  • nozzle plate 1 in addition to the nozzle opening 2, there are further nozzle openings which are each controlled by a separate control valve, these further nozzle openings not being shown for the sake of simplicity.
  • the printhead contains a base plate 3 which delimits a coating agent supply 4, i. the paint to be painted is supplied via the coating agent feed 4 and can then exit through the nozzle opening 2 when the control valve is open.
  • a coil tube 5 is arranged on the top of the base plate 3 and a coil 6 is wound on the outside.
  • a magnetic coil core 7 which is arranged in a stationary manner and is sealed off from the coil tube 5 by a seal 8.
  • a magnetic armature 9 in the coil tube 5 which can also be referred to as a valve needle and, depending on the energization of the coil 6, can be displaced in the direction of the double arrow in order to either open or close the nozzle opening 2.
  • the armature 9 carries a seal 10 at its lower end in order to seal the nozzle opening 2 in the illustrated closed position so that no paint can escape from the nozzle opening 2.
  • control valve also has a return spring 11, which the armature 9 and thus also the seal 10 in the drawing pushes down into the closed position shown.
  • the coil 6 is energized in such a way that the armature 9 with the seal 10 is actively pulled upward in the drawing, namely against the spring force of the return spring 11.
  • the coil 6 is de-energized so that the return spring 11 can press the armature 9 and thus also the seal 10 in the drawing down into the illustrated closed position.
  • the disadvantage of this known control valve is the fact that the interior of the control valve and in particular an interior 12 of the coil tube 5 is exposed to the paint.
  • paint residues in the interior space 12 of the coil tube 5 can therefore impair the functionality of the control valve.
  • paint deposits in the control valve can impair the freedom of movement of the armature 9.
  • the paint residues in the interior 12 of the coil tube 5 also prevent a color change, since the control valve cannot be flushed during operation.
  • the control valve cannot be flushed during operation.
  • Another possibility for a color change is to rinse the print head with an extremely high amount of detergent of several liters and over a longer period of several minutes, which also prevents a color change during operation due to the required amount of detergent and the necessary rinsing time.
  • the known print heads described above therefore do not allow a color change during operation.
  • the invention is therefore based on the object of creating a correspondingly improved print head and specifying a corresponding operating method.
  • the invention comprises the general technical teaching of technically designing the print head in such a way that a color change is made possible in the coating operation. This is achieved in that the printhead can be rinsed with a rinsing agent when there is a color change in order to rinse coating agent residues out of the printhead.
  • the print head according to the invention has a coating agent supply in order to supply the coating agent to be applied to the printing head.
  • the printhead according to the invention preferably also has a separate detergent feed to supply a detergent.
  • the coating agent feed is preferably separate from the flushing agent feed, so that the print head preferably has separate inlets for feeding the coating agent on the one hand and for feeding the flushing agent on the other hand.
  • a paint hose (coating agent supply) could be connected to the applicator (print head) for each color (Integrated Color Changer technology). Then there is a detergent connection and a pulse air connection in or on the applicator. These are then used for rinsing.
  • the print head according to the invention preferably also has a return in order to return the coating agent and / or flushing agent, specifically either into a ring line or into a disposal facility.
  • the print head according to the invention preferably also has a further separate connection in order to return the coating agent or rinsing agent.
  • the return flow into the return is preferably controlled by a controllable return valve which can be designed as a return valve operated by its own medium or also as a proportional valve.
  • a controllable return valve which can be designed as a return valve operated by its own medium or also as a proportional valve.
  • the print head has a plurality of nozzles in order to deliver the coating agent.
  • a control valve is preferably assigned to the individual nozzles in order to control the coating agent discharge through the respective nozzle.
  • the above-mentioned flushing agent supply then preferably has branch lines which lead to the individual control valves so that all control valves of the print head can be flushed with the flushing agent at the same time.
  • the individual branch lines of the detergent supply are preferably designed in such a way that the supplied detergent is evenly distributed to the branch lines to the control valves, so that the individual control valves are substantially rinsed with the same amount of detergent.
  • the print head has at least one nozzle for dispensing the coating agent and an associated control valve for controlling the coating agent discharge through the nozzle, as has already been briefly explained above.
  • the control valve can have an electric coil which can be wound onto a coil tube. It was already explained at the beginning of the prior art that coating agent residues can be deposited in this coil tube, which on the one hand impair the functionality of the control valve and on the other hand prevent the ability to change colors.
  • the flushing agent feed line therefore preferably opens into the coil tube in order to flush the interior of the coil tube.
  • the coil tube - as in the case of the conventional control valve described at the beginning - preferably has a circular inner cross-section and contains a coil core. It can be advantageous here if the coil core has a profile cross-section that does not completely fill the inner cross-section of the coil tube in order to leave space for the detergent between the coil tube and the coil core so that the detergent can flow through in the axial direction.
  • the coil core can have a star-shaped profile cross-section for this purpose with radially protruding ribs running in the axial direction, so that the flushing agent can flow in the axial direction between the ribs of the coil core.
  • the coil core has a flushing groove in its outer surface, which can run axially, in the circumferential direction or in a spiral shape, for example.
  • axially extending scavenging channels can also be arranged in the coil core.
  • Another example provides that the profile cross-section of the coil core is lattice-shaped and the flushing agent can flow through it.
  • the coil core is preferably sealed off from the coil tube with a seal, in particular with a pressure resistance of more than 2 bar, 4 bar or 6 bar.
  • the print head can have several control valves which can all be flushed.
  • the individual control valves generally each have a coil tube, the flushing agent feed then opening into all of the coil tubes in order to be able to flush all of the coil tubes.
  • control valve generally - as in the case of the known control valve described at the outset - has a displaceable armature which is displaced as a function of the energization of the coil and, as a function of its position, closes or releases the nozzle.
  • This armature preferably runs coaxially over part of its length in the coil tube and preferably has an axially permeable profile cross section so that flushing agent can flow between the armature and the inner wall of the coil tube.
  • the armature preferably has a non-circular profile cross-section which does not completely fill the circular inner cross-section of the coil tube and therefore allows an axial flow of flushing agent.
  • the profile cross-section of the armature can be star-shaped or cross-shaped.
  • the flushing agent feed opens into the coil tube in the axial direction between the armature and the coil core.
  • the flushing agent feed opens into the coil tube in the axial direction in the region of the coil core, in particular at the end of the nozzle tube facing away from the movable armature.
  • the movable armature is arranged in a detergent-permeable guide cage, in particular in a slotted cylinder. This offers the advantage that the movable armature can be flushed during a flushing process, as a result of which coating agent deposits on the armature are avoided.
  • the displaceable armature has a central guide bore, with a guide pin protruding into the guide bore. This creates a linear guide that can, however, also be flushed.
  • a flexible membrane which separates the control valve from the coating agent feed, so that the control valve is protected from contact with a coating agent by the membrane.
  • the control valve itself does not have to be rinsed at all, since the control valve itself does not come into contact with the respective coating agent at all. Rather, only the smooth surface of the membrane on the coating agent side should be rinsed, but this can be done very easily and efficiently, since the smooth membrane surface hardly forms any starting points for paint deposits.
  • the print head according to the invention preferably enables a quick color change within a color change duration of less than 1 hour, 20 minutes, 10 minutes, 30 seconds, 10 seconds or even less than 5 seconds.
  • the lowest possible color change losses are aimed for, which in the print head according to the invention are preferably less than 5l, 2l, 200ml, 20ml, 10ml, 5ml or even less than 2ml.
  • the consumption of detergent preferably being less than 10l, 5l, 2l, 200ml, 100ml, 50ml, 20ml or even less than 10ml.
  • the print head has several separate rinsing agent feeds in order to supply different rinsing agents, which can be adapted to the respective coating agent, for example.
  • the print head with its media-carrying parts is preferably constructed in such a way that the media-carrying parts are free of dead spaces and / or free of undercuts in order to improve flushability.
  • the print head is provided with a cleaning-promoting coating on its surfaces that come into contact with the coating agent, such a coating also being known as an "easy-to-clean coating".
  • the coating device according to the invention preferably also comprises a color changer, such as a linear color changer, a rotary color changer, a color changer integrated in the print head or an A / B color changer.
  • a color changer such as a linear color changer, a rotary color changer, a color changer integrated in the print head or an A / B color changer.
  • the invention also includes a corresponding operating method for such a print head, the individual process steps already result from the above description and therefore do not have to be described in more detail.
  • the detergent can be a universal detergent that is suitable for both water-based paints and solvent-based paints.
  • the detergent can be a VOC-free (VOC: volatile organic compounds) detergent.
  • the print head can be flushed with the flushing agent or alternately with pulsed air.
  • a solvent-based paint is first supplied and applied.
  • the printhead is then rinsed with a solvent-based rinsing agent in order to rinse off residues of the solvent-based paint.
  • a release agent can then be added, for example alcohol.
  • a water-based varnish is added and applied.
  • the printhead is then rinsed with a water-based washing-up liquid to rinse off any residues of the water-based paint.
  • the print head is preferably pressed on with the new coating agent, i. E. filled.
  • a defined amount of lacquer is preferably also applied through the nozzle of the print head.
  • the rinsing agent can be discharged one after the other or alternately into the return or through the nozzle.
  • rinsing with a mixture of detergent and pulsed air.
  • FIG Figure 2 the schematic representation of a control valve according to the invention is shown in FIG Figure 2 described, wherein the control valve is arranged in a print head.
  • This embodiment of a control valve according to the invention partially corresponds to the conventional control valve described at the beginning and shown in FIG. 1, see above that, to avoid repetition, reference is made to the above description, the same reference symbols being used for corresponding details.
  • a special feature of this exemplary embodiment is that the control valve has a flushing agent feed 13 which opens into the interior 12 of the coil tube 5. Rinsing agent can therefore be supplied via this rinsing agent feed 13 in order to rinse the control valve with a rinsing agent when there is a color change. This enables a color change during operation within a short time.
  • control valve in this embodiment has a special design of the seal 8 between the coil core 7 and the coil tube 5, the seal 8 enabling a pressure resistance of more than 2 bar.
  • FIG. 3 shows a schematic representation of a further exemplary embodiment of a control valve according to the invention in a print head, this exemplary embodiment partially corresponding to the exemplary embodiment described above, so that reference is made to the preceding description to avoid repetition, the same reference numerals being used for corresponding details.
  • a special feature of this exemplary embodiment is that the displaceable armature 9 can flow freely around the flushing agent, so that the flushing agent can also flush the interior 12 of the coil tube 5.
  • the armature 9 has a cruciform profile cross-section with axially extending ribs, so that the flushing agent can flow between the ribs of the armature 9 in the axial direction into the interior 12 of the coil tube 5.
  • the detergent is not used here - as with Figure 2 - Supplied via the detergent feed 13, but Via the coating agent feed 4, which is therefore used alternately to feed the coating agent and to feed the rinsing agent.
  • the coil core 7 is sealed off from the interior space 12 by the seal 8.
  • Figure 4 shows a further exemplary embodiment, which also largely corresponds to the exemplary embodiment described above, so that, in order to avoid repetition, reference is made to the preceding description, the same reference symbols being used for corresponding details.
  • a special feature of this exemplary embodiment is that the displaceable armature 9 is arranged in a flushable guide cage 14, which consists of a slotted cylinder so that the interior of the guide cage 14 can be flushed.
  • the seal 8 seals the interior of the coil tube 5 from the area carrying the media.
  • FIG. 5 shows yet another embodiment, so that again to avoid repetition, reference is made to the above description, the same reference symbols being used for corresponding details.
  • the armature 9 has a guide bore 15 in the center, into which a guide pin 16 engages, the fit of the guide bore 15 and the guide pin 16 also being accessible for detergent.
  • seal 8 seals the annular gap between the coil tube 5 and the coil core 7.
  • a special feature of this exemplary embodiment is that the detergent feed 13 does not open into the interior 12 of the coil tube between the coil core 7 and the armature 9. Rather, the detergent feed 13 opens into the coil tube at the upper end of the coil tube 5.
  • FIG. 7 shows a further modification of a flushable control valve which for this purpose provides a flexible membrane 17 which separates the control valve from the media-carrying parts in the coating agent feed 4.
  • the control valve itself does not have to be rinsed with detergent because the control valve itself does not come into contact with the respective paint. Rather, only the membrane 17 is touched by the respective lacquer on its coating agent side, so that only this side of the membrane 17 has to be rinsed, which is easily possible by supplying rinsing agent via the coating agent feed.
  • Figure 8 shows a greatly simplified schematic representation of a coating device according to the invention with a coating agent feed 18, a color changer 19, a print head 20 according to the invention, a return valve 21 and a return 22.
  • the color changer 19 can supply different colored coating agents to the print head 20, wherein the print head 20 can optionally be rinsed with rinsing agent via a rinsing agent supply (not shown) or via the coating agent supply 18.
  • Residues of coating agent and rinsing agent that accumulate during a rinsing process can then be discharged into return line 22.
  • Figure 9 a schematic representation of a print head according to the invention with several control valves 23.1, 23.4, which are supplied with coating agent via a common coating agent feed 24 with several branch lines 25.
  • the coating device also has a common flushing agent feed 26, which is connected to the individual control valves 23.1-23.4 via a branch line 27, so that all control valves 23.1-23.4 of the print head can be flushed with flushing agent.
  • the invention is not restricted to the preferred exemplary embodiments described above. Rather, a large number of variants and modifications are possible which also make use of the inventive concept and therefore fall within the scope of protection.
  • the invention also claims protection for the subject matter and the features of the subclaims independently of the claims referred to in each case and in particular also without the features of the main claim.
  • the invention thus comprises various aspects of the invention that are protected independently of one another.
  • the invention also includes variants in which the control valve does not have a coil with a coil tube, an armature and a coil core.
  • the invention also includes variants in which the detergent supply does not open into the coil tube.

Landscapes

  • Coating Apparatus (AREA)
  • Cleaning In General (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
EP20170976.3A 2016-12-14 2017-12-01 Tête d'impression et procédé opérationel correspondant Active EP3702045B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016014948.5A DE102016014948A1 (de) 2016-12-14 2016-12-14 Druckkopf und zugehöriges Betriebsverfahren
EP17811262.9A EP3535064B1 (fr) 2016-12-14 2017-12-01 Tête d'impression et procédé opérationel correspondant
PCT/EP2017/081152 WO2018108577A1 (fr) 2016-12-14 2017-12-01 Tête d'impression et procédé de fonctionnement associé

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP17811262.9A Division EP3535064B1 (fr) 2016-12-14 2017-12-01 Tête d'impression et procédé opérationel correspondant
EP17811262.9A Division-Into EP3535064B1 (fr) 2016-12-14 2017-12-01 Tête d'impression et procédé opérationel correspondant

Publications (2)

Publication Number Publication Date
EP3702045A1 true EP3702045A1 (fr) 2020-09-02
EP3702045B1 EP3702045B1 (fr) 2021-06-02

Family

ID=60627609

Family Applications (2)

Application Number Title Priority Date Filing Date
EP17811262.9A Active EP3535064B1 (fr) 2016-12-14 2017-12-01 Tête d'impression et procédé opérationel correspondant
EP20170976.3A Active EP3702045B1 (fr) 2016-12-14 2017-12-01 Tête d'impression et procédé opérationel correspondant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP17811262.9A Active EP3535064B1 (fr) 2016-12-14 2017-12-01 Tête d'impression et procédé opérationel correspondant

Country Status (9)

Country Link
US (1) US11338312B2 (fr)
EP (2) EP3535064B1 (fr)
JP (1) JP7001690B2 (fr)
CN (1) CN110072629B (fr)
DE (1) DE102016014948A1 (fr)
ES (1) ES2816127T3 (fr)
HU (1) HUE051540T2 (fr)
MX (1) MX2019006965A (fr)
WO (1) WO2018108577A1 (fr)

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CN111570162A (zh) * 2020-05-06 2020-08-25 广汽新能源汽车有限公司 上涂换色生产控制方法、装置及上涂换色生产线
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JP6979546B1 (ja) 2021-10-08 2021-12-15 アーベーベー・シュバイツ・アーゲーABB Schweiz AG 塗装装置
JP7241955B1 (ja) 2022-12-20 2023-03-17 アーベーベー・シュバイツ・アーゲー 塗装機

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US11338312B2 (en) 2022-05-24
EP3702045B1 (fr) 2021-06-02
JP7001690B2 (ja) 2022-01-19
CN110072629B (zh) 2022-07-19
DE102016014948A1 (de) 2018-06-14
EP3535064B1 (fr) 2020-07-22
JP2020501881A (ja) 2020-01-23
US20190308212A1 (en) 2019-10-10
CN110072629A (zh) 2019-07-30
WO2018108577A1 (fr) 2018-06-21
HUE051540T2 (hu) 2021-03-01
MX2019006965A (es) 2019-08-01
ES2816127T3 (es) 2021-03-31

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