EP2002898A1 - Auftragungseinrichtung zum Auftragen von Fluid auf ein Substrat mit Ventileinrichtungen, Verfahren zum Reinigen des Auftragungseinrichtung und Ventileinrichtung für die Auftragungseinrichtung - Google Patents

Auftragungseinrichtung zum Auftragen von Fluid auf ein Substrat mit Ventileinrichtungen, Verfahren zum Reinigen des Auftragungseinrichtung und Ventileinrichtung für die Auftragungseinrichtung Download PDF

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Publication number
EP2002898A1
EP2002898A1 EP07090124A EP07090124A EP2002898A1 EP 2002898 A1 EP2002898 A1 EP 2002898A1 EP 07090124 A EP07090124 A EP 07090124A EP 07090124 A EP07090124 A EP 07090124A EP 2002898 A1 EP2002898 A1 EP 2002898A1
Authority
EP
European Patent Office
Prior art keywords
valve
application
cleaning
piston
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07090124A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2002898A8 (de
Inventor
Johann Achrainer
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.)
J Zimmer Maschinenbau GmbH
Original Assignee
J Zimmer Maschinenbau 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 J Zimmer Maschinenbau GmbH filed Critical J Zimmer Maschinenbau GmbH
Priority to EP07090124A priority Critical patent/EP2002898A1/de
Priority to US12/664,450 priority patent/US20100132612A1/en
Priority to CA2690062A priority patent/CA2690062C/en
Priority to CN200880020135A priority patent/CN101784348A/zh
Priority to EP08758718A priority patent/EP2162234A2/de
Priority to PCT/EP2008/004122 priority patent/WO2008151713A2/de
Priority to EP08758719A priority patent/EP2162235B1/de
Priority to CA2690108A priority patent/CA2690108A1/en
Priority to US12/664,439 priority patent/US7837071B2/en
Priority to JP2010511513A priority patent/JP2010531213A/ja
Priority to KR1020107000763A priority patent/KR20100021651A/ko
Priority to PCT/EP2008/004123 priority patent/WO2008151714A1/de
Priority to KR1020107000762A priority patent/KR101398760B1/ko
Priority to CN2008800200458A priority patent/CN101711186B/zh
Priority to AT08758719T priority patent/ATE520473T1/de
Priority to JP2010511514A priority patent/JP5228039B2/ja
Publication of EP2002898A1 publication Critical patent/EP2002898A1/de
Publication of EP2002898A8 publication Critical patent/EP2002898A8/de
Priority to IL202427A priority patent/IL202427A0/en
Priority to IL202426A priority patent/IL202426A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled
    • 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
    • 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
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor

Definitions

  • the invention is directed to an applicator for applying fluid to a substrate comprising a series of valve means each provided with an application valve nozzle for blasting the fluid under pressure and associated valve actuation means for controlling fluid emission by closing and opening the application valve nozzles and comprising a common distribution fluid chamber pressurizable with the fluid interconnecting the application valve means for impinging the fluid, the distribution fluid chamber being provided with a fluid inlet passage arranged to communicate with the distribution fluid chamber Pressure fluid is distributed along the row of application valve means on this.
  • the invention also relates to a method for cleaning the application device and to a valve device for the application device.
  • the valves are opened and closed by individual actuation to form a dot or line application, which can result in a two-dimensional application, on a substrate, e.g. to produce on a flat web or a surface part.
  • the application fluid is any liquid substance, in particular paint or ink suitable for an application of paint. It is also possible to carry out coatings or impregnations with adhesives, coating compositions or the like.
  • the control determines applied amounts, applied areas, patterns and / or applied characters.
  • the valve nozzles have a diameter of eg only 60 to 150 micrometers.
  • the valve nozzles and fluid paths in the valve devices can through clog the finest particles or smallest deposit easily.
  • Common application devices often need to be completely disassembled, particularly to clean the distribution fluid chamber which feeds the valve means together. Impurities occur in particular after a first assembly. But even during operation, faults occur due to deposits. In addition, there are special cleaning requirements when the application substance to change, so for example, a color change is made.
  • Conventional application devices must then be mostly completely or largely disassembled into their components and adjusted after subsequent assembly with considerable effort using separate micrometering devices. Here is the invention to remedy the situation.
  • the invention is based on the objectives to improve the cleaning of the application device and its valve devices and to make it easy.
  • the application device or the valve device should be effective and easy to clean for a variety of cases even without disassembly, especially while maintaining adjustment settings of the valve nozzles.
  • At least one fluid inlet channel of the distribution fluid chamber is associated with at least one cleaning valve device, which is connected to the distribution arrangement in order to connect to the distribution fluid chamber.
  • Valve means is incorporated and equipped with a cleaning valve nozzle and associated valve actuator for closing or opening the cleaning valve nozzle, wherein in the distribution fluid chamber between the fluid inlet channel and the at least one associated cleaning valve means effective at open cleaning valve nozzle flow path for cleaning the common distribution fluid chamber is formed.
  • the objects are achieved according to a method according to the invention for cleaning the application device according to the invention in that (i) the distribution fluid chamber, which connects the valve devices in series along the associated cleaning flow path, with pressurized Cleaning fluid is applied, (ii) the application valve means are kept closed, whereas the cleaning valve nozzle of the cleaning flow path associated cleaning valve means is opened, and (iii) then the cleaning valve nozzle of the cleaning valve means is closed and the Application valve devices are opened upon pressurization of the distribution fluid chamber with pressurized cleaning fluid.
  • the application device is characterized in particular in that the distribution fluid chamber, which supplies fluid to all the valve devices of the application device, can be cleaned simply and effectively without the application device being opened or disassembled.
  • the cleaning valve device according to the invention is designed such that when the cleaning nozzle is open and the application nozzles are closed, the common fluid chamber is flushed through, that cleaning fluid is pressed under pressure at high speed and thus impulsively sweeping through the distribution fluid chamber.
  • the valve nozzle of the cleaning valve device has a relatively large nozzle cross section. It is a nozzle cross-section, which is not suitable for fluid application.
  • the cleaning valve device differs significantly from the application valve devices.
  • the purge valve means and the application valve means of the application means are suitably the same and coincident in design to inexpensively produce the application means and to simplify the valve control.
  • the application valve devices are cleaned by program-controlled method steps i) to iii) by means of electronic control, wherein the valve nozzles are controlled closed or opened by means of the valve actuation devices and in step iii) the application Valve devices are opened by opening the application valve nozzles.
  • the application valve means are opened one at a time only one at a time, while the other application valve nozzles are kept closed.
  • the fluid for cleaning it is desirable to use water, detergent optionally dissolving with the coating substance or otherwise suitable cleaning fluid.
  • control of the cleaning process with the controlled opening and closing of the nozzle openings can be carried out in a simple manner with an electronic processor control device set up for this purpose in that it is equipped with a control program which represents the said sequence of method steps and provides for execution.
  • a control device can be used in the usual way e.g. be set up with a computer in conjunction with a program representing the method sections.
  • a preferred embodiment of the invention is that the fluid inlet channel and the associated cleaning valve device are provided in single number, wherein all application valve devices of the application device between the one fluid inlet channel and the one cleaning Valve device are arranged. It has been found that, in particular in such an arrangement, a particularly effective cleaning flow path through the distribution fluid chamber is generated when the cleaning valve nozzle of the cleaning valve means has an effective flow cross-section which is several times, preferably about 10 times greater than that is the same or largest flow area of the application valve nozzles of the application valve devices.
  • a application device which is particularly preferred for paint application in practice has the one cleaning valve device and eight application valve devices. But also devices with fewer application nozzles, for example with five nozzles, or with more application nozzles, e.g. with fifteen nozzles prove to be especially practical.
  • Application units with preferably five to fifteen application valve devices and in each case one cleaning valve device are expediently also set up as a module element which is joined together with the same module elements to form a application device with radiation nozzles arranged in rows and columns.
  • Such application module elements can be assembled with plug connections and / or screw connections.
  • a application device according to the invention is formed in a preferred design with electromagnetically operated valve devices.
  • the inventive arrangement of the cleaning valve device can be achieved particular advantages.
  • the electromagnetic configuration of the application device is that the valve actuation devices of the valve devices are arranged in a row arrangement spatially between the distribution fluid chamber and the nozzle side of the application device having the valve nozzles of the valve devices in that each valve actuating device has a solenoid device with a valve piston that can be moved back and forth, that each valve device has a valve housing with valve nozzle and valve seat, with which the associated valve piston for opening and closing the valve nozzle cooperates, that each valve device with a piston stop, against the the valve piston operates, is formed, wherein the piston stop is formed by an adjusting piston, which is adjustably mounted for adjusting and adjusting the piston stroke in the stroke direction, and that each valve device is provided with at least one straight running, free from flow corners fluid channel, the common Fluid chamber connects to the valve seat, wherein the valve piston and a part of the Justierkolbens together form a wall of the straight fluid channel, and wherein each valve means on the nozzle side of the application device has a mounting opening a u
  • Said application device according to the invention equipped with electromagnetic valves, in combination with the cleaning valve device provided according to the invention and the cleaning flow path achieved thereby also offers advantages for cleaning the valve fluid channels between the distribution fluid chamber and the application valve nozzles.
  • the straight-running, free from flow corners valve fluid passage ensures an excellent conditioner. Flow shadows in known application devices caused by undercuts, dead corners, areas with slow flow velocities or the like are avoided. Harmful air bubbles are avoided because a particularly effective ventilation is achieved by the straight, running on the wall of the adjusting piston and the valve piston flow path.
  • the cleaning fluid cleans at each individually opened application valve means the distance between the distribution fluid chamber and the valve seat or the valve nozzle arranged thereon, without the application device must be disassembled. In this case, there is a significant advantage in that the set with the adjusting piston adjustment position of the valve piston is maintained.
  • valve nozzle is part of the valve housing. There is a nozzle aperture formed. Only by replacing the valve housing with a differently dimensioned valve nozzle can be realized for applying other subtleties and fluid quantities (amounts of ink).
  • the adjustable adjusting piston also guarantees considerable advantages.
  • An adjusting device is preferably formed by a screw connection with fine thread. By turning the adjustment piston in and out, the distance to the valve piston and thus the desired fine piston stroke can be set exactly.
  • the piston stroke directly affects the flow of the valve device, so that a precise adjustment for achieving a uniform application, in particular a uniform print image is particularly important.
  • the setting of the stroke can take place during valve operation.
  • the rotational adjustment of the adjusting piston results in an immediate change of the flow through the valve nozzle.
  • a further advantage of said embodiment is that, after the distribution fluid chamber has been cleaned according to the invention, the fluid channel between the distribution fluid chamber and the associated application nozzle can also be cleaned by removing the releasably mounted valve housing in the event of gross contamination.
  • the valve housing and the valve piston are easily removed and reassembled on the nozzle side of the application device, that is to say on the underside of the device forming the application side.
  • Such partial disassembly may be required if a fluid change, eg a color change is to be made.
  • the adjusting pistons, ie adjusting devices arranged therefor at the top or rear of the application device are not dismantled. This is of considerable advantage, since just the adjusting devices are very sensitive to damage.
  • valve device for an application device according to the invention in the aforementioned embodiment with electromagnetic actuation devices also comes as an independent device independent inventive significance. It is thus achieved with this valve device in a single design that a straight longitudinal flow takes place along the straight valve channel path between the supply fluid chamber and the valve nozzle.
  • the longitudinal construction otherwise avoids flow shadows created by undercuts, dead corners, areas with slow flow velocities or the like.
  • the single valve device can not only, as already explained, clean very well by flushing.
  • the longitudinal flow also effectively cools the inner region of the electromagnetic device, namely a magnetic coil which partially surrounds the adjusting piston and the valve piston. This has a favorable effect on the life of the valve device. Design and installation of the valve device are particularly simple.
  • the single valve device has the advantages that have been mentioned in connection with the valve means of the application device.
  • the valve body can be easily removed.
  • the mounting opening is so large that the valve piston can also be easily removed.
  • the valve fluid channel or the piston chamber to the nozzle side ie downwardly open.
  • flushing with cleaning fluid under pressure the valve fluid channel or the piston chamber are flushed through, and any dirt particles are flushed down.
  • the adjusting piston or the adjusting device will not be dismantled. Adjustment adjustments can also be made precisely during the operation of the device, ie during the application.
  • Fig. 1A to D illustrated application device comprises a box-like valve body 15 which is composed of a base base 151 and a lid top 152.
  • the lower part 151 is closed by a narrow elongated nozzle plate 121 which receives valve nozzles 3.
  • the valve nozzles 3 are arranged on the nozzle / application side 12 in a straight row.
  • the application device 1 has an electrical plug connection 17 and a connection opening 16 for application fluid.
  • the row of valve nozzles 3 is determined by eight application valve nozzles 31 and a cleaning valve nozzle 30 terminating the nozzle row.
  • the cleaning valve nozzle 30 is arranged according to the invention at the opposite end of the connection opening 16 of the nozzle row.
  • valve body 15 is connected to an electronic power switching device 9.
  • This switching device 9 is connected by means of a frame 19 in plug connection 18 with a cap 153 of the upper part 152.
  • the circuit device 9 is electrically connected directly to the valve body 15 via the plug connection 17 without using a ribbon cable connection.
  • the electrical plug-in connection 17 produces electrical connections (not shown) to electromagnetic valve actuation devices 5 of the application device 1.
  • valve device 20 at one end of the row is a cleaning valve device provided according to the invention, which is equipped with the cleaning valve nozzle 30.
  • the eight other valve devices 21 are application valve devices whose valve nozzles 31 emit pressurized application fluid during normal operation.
  • a distribution fluid chamber 11 which can be fed from one side through the connection port 16 via a fluid inlet passage 110 with pressurized fluid.
  • the chamber is in the form of an elongate channel of substantially circular cross-section extending along the row of valve means 2.
  • the distribution fluid chamber 11 is provided on its side facing the valve actuators 5 at equal intervals with openings 73. These are each the opening 73 of a through hole or a through hole 70 in the lower part 151.
  • the bore 70 opens into a projection 154, which engages in a mounting opening 13 of the nozzle plate 121.
  • a closure element 155 can be seen, with which the fluid distribution channel 111 is sealed at its end opposite the fluid inlet channel 110. If necessary, this closure element can be used to vent the distribution fluid chamber 11. Due to the measures according to the invention, however, it is not necessary to remove this closure element 155 for cleaning the application device 1. Also, a vent is only exceptionally.
  • valve devices 2 namely the cleaning valve device 20 and the application valve devices 21 are basically identical and identical. According to the invention, however, an essential difference is that the cleaning valve device 20 is equipped at the end of the series arrangement with the cleaning valve nozzle 30, which has a substantially larger flow cross-section than the flow cross-section of the application valve nozzle 31 of each application valve device 21.
  • the application valve nozzles 31 have the same flow cross-section.
  • the flow cross section of the cleaning valve nozzle 30 should be ten times greater than the flow cross section of the application valve nozzle 31.
  • valve device 2 which is thus provided nine times, will be described below.
  • the electromagnetic valve device 2 comprises the valve actuating device 5 arranged in the valve body 15, a valve housing 4 with the valve nozzle 3 and a valve seat 41, a valve piston 51 and an adjusting device 6 with an adjusting piston 61 against which the valve piston 51 operates.
  • the valve housing 4 with the valve nozzle 3 forms a screw-in nozzle orifice.
  • the valve actuator 5 is designed as a solenoid device with a magnetic coil 50 which surrounds the through hole 70. From the through hole 70 projects on the projection 154 of the valve piston 51 down into a piston chamber 8.
  • the valve piston 51 forms the solenoid armature of the solenoid coil 50 and immersed in the through hole 70 in the solenoid coil 50 inside.
  • the valve piston 51 is mounted centrally in the through hole 70.
  • Appropriately, not shown multipoint bearing is provided according to the invention. This is suitably formed by three at the longitudinal periphery of the valve piston 51 offset by 120 ° nubs.
  • an annular gap is formed between the longitudinal circumferential surface of the valve piston 51 and the bore wall of the through hole 70.
  • the through-bore 70 and the valve piston 51 expediently have a circular cross-section.
  • the adjusting piston 61 is immersed in the through hole 70 in the solenoid coil 50 from the distribution fluid chamber 11 side. In this case, the adjusting piston 61 extends approximately two-thirds in the magnetic coil, while the valve piston 51 is immersed in the remaining third.
  • the adjusting device 6 comprises a screw connection 63, which is formed on the wall of the distribution fluid chamber 11, which is opposite to the wall of the fluid inlet openings 73.
  • the adjusting piston 61 has the same cross section as the valve piston 51, wherein the two pistons are arranged in alignment.
  • the adjusting piston 61 is centered by the erlagerung the screw 63 in the through hole 70.
  • an annular gap is equally formed between the longitudinal periphery of the adjusting piston 61 and the wall of the through hole 70.
  • the two annular gaps in the through bore 70 along the adjusting piston 61 and along the valve piston 51 form a valve fluid channel 7 in the form of an annular chamber channel 72. This extends from the fluid inlet port 73 to the outlet port 74 on the projection 154.
  • the annular chamber channel 72 forms along the two Piston 51, 61 and the through hole 70 from a straight running flow path, which remains free of flow shadow forming corners and edges.
  • the adjusting piston 61 and the valve piston 51 come to rest with closed surfaces. Between the contact surfaces is in the embodiment only a stroke distance of approx. 0.5 ⁇ m. In any case, the stroke distance with the closed end faces of the two pistons 51, 61 is kept so small that the flow path through the annular chamber channel 72 in a straight path remains smooth and undisturbed.
  • the adjusting piston 61 projects far into the outlet fluid chamber 11 at the fluid inlet opening 73 of the annular chamber channel 72.
  • the cross section of the adjusting piston 61 is kept relatively small in the flow cross section of the distribution fluid chamber 11, in order to obtain a large effective flow cross section in the distribution fluid chamber 11 to the fluid inlet openings 73 out.
  • valve housing 4 of particular importance. It is designed in the form of a nozzle orifice which is an easily attachable and removable closure member 14.
  • the valve housing 4 is formed as a rotating part with an external thread and screwed into releasable screw in the associated, having an internal thread mounting opening 13 on the nozzle plate 121.
  • the valve housing 4 closes outwardly with an abutting on the nozzle / application side 12 edge panel.
  • the valve nozzle 3 is recessed in the middle. It is advantageously made of ceramic and can be inserted by pressing firmly into the valve housing 4.
  • the valve housing 4 has a frustoconical interior 8, which corresponds to the projection 154 in order to receive this precisely and centrally. Moreover, the interior 8 of the valve housing 4 is formed to receive a preloaded conical spring 52, which is part of the valve actuator 5, wherein it presses a head-closing element 54 of the valve piston 51 to close the valve nozzle 3 against this.
  • the valve nozzle 3 is formed to the side of the valve piston 51 with the valve seat 41, to which the valve piston 51 engages with the head-closing element 54.
  • the conical spring 52 which sits on the valve piston 51, held or clamped in its prestressed state between an annular edge of the projection 154 and a ring edge at the head end of the valve piston 51.
  • the components of the application device 1 are applied to adjoining interlocking surfaces in the region of fluid-carrying chambers and channels in the usual way with seals, e.g. O-ring seals sealed against each other.
  • seals e.g. O-ring seals sealed against each other.
  • the distribution fluid chamber 11 is acted upon by pressurized cleaning fluid. This takes place in a state in which all valve devices 2 are closed.
  • the cleaning fluid is expediently water, optionally mixed with application substance particularly dissolving cleaning agent used.
  • the cleaning valve nozzle 30 is opened by means of the associated valve actuator 5.
  • the valve piston 51 is moved against the force of the conical spring 52 over the stroke distance against the adjusting piston 61, so that cleaning fluid flows out of the cleaning valve nozzle 30 under pressure.
  • the cleaning valve nozzle 30 has, as described above, a relatively large flow cross-section. It is thereby achieved that the fluid from the fluid inlet channel 110 passes at high flow speed along the distance 100 in the distribution fluid chamber 11 through the annular chamber channel 72 of the cleaning valve device 20 to the cleaning valve nozzle 30. Along the flow path 100, which passes through all the valve devices 2, the distribution fluid chamber 11 is cleaned particularly effectively of impurities such as particles or deposits.
  • microparticles for which the currently running annular chamber channel 72 is not an obstacle. It is essential to the extent that due to the large nozzle opening a high, very fine impurities entraining flow is generated. It is emphasized here that the flow cross section the cleaning valve nozzle 30 is so large that this nozzle is not suitable for an application operation and is not used for this purpose. The stroke of the adjusting device 6 of the cleaning valve device is set so large that the flow cross section of the valve nozzle 30 comes to full advantage.
  • the cleaning valve device 20 is closed by normally switching the valve actuator 5.
  • the application valve devices 21 are now opened successively by activation of the associated valve actuation devices 5. That is, one after the other, only one of the application valve nozzles 31 is opened while the other application valve nozzles 31 are kept closed.
  • the distribution fluid chamber 11 is fed with pressurized cleaning fluid. In this way, one achieves in each case an effective cleaning and flushing of the annular chamber channel 72 and of the conical spring 52 receiving the interior 8 of the valve housing 4 including the application valve nozzle 30th
  • the sequence of the pressurization with cleaning fluid and the closing or opening of the valve devices 2 carried out for the described cleaning method is advantageously carried out by an electronic control device.
  • This is set up with a control program such that the sequence of the method steps is predetermined in the manner according to the invention and can be carried out.
  • an electronic control device the usual control electronics of a computer and / or a logic circuit can be used for application control, wherein the program steps according to the invention are additionally integrated.
  • Such an electronic control device is not shown in the drawing. It is turned on, for example by means of a logic board to the electrical contacts 91 of the power electronics 9.
  • the application device 1 is rinsed particularly effective especially after the initial assembly. It is of great advantage that cleaning and rinsing take place in a state of the application device in which the adjusting devices 6 of the application device 1 remain mounted. At the nozzle plate 121 opposite side of the application device 1 so no manipulation takes place by disassembly.
  • valve housing 4 The removal of the valve housing 4 is particularly simple. After the valve housing 4 has been removed, the mounting opening 13 releases the valve piston 51 and the conical spring 52, parts which, as such, are simply removed downward through the mounting opening 13. There is then a rinse under high pressure, for example with water or a special detergent. The valve piston 51, the conical spring 52 and the valve housing 4 with its valve nozzle 3 are cleaned individually. Moreover, to complete the cleaning, the valve housing 4 of the cleaning valve device 20 can still be removed and flushed with water at then closed application valve devices. Such measures take place only in exceptional cases in case of gross contamination. In most cases, the application valve devices 21 can be cleaned particularly effectively without removing the valve housings 4 (nozzle orifices) according to the invention.
  • the adjusting device 6 has a micrometer fine thread 622 with adjusting screw 621.
  • a application device 1, as in the embodiment of the Fig. 1 to 3 has been described, can be advantageously provided as a modular unit, which can be combined with the same module units to a application device arranged in rows and columns radiating nozzles.
  • valve devices 2 are housed and formed in the parts 151 to 153 of the common valve body 15.
  • the valve devices can also each be formed by a single valve device.
  • Such a valve device is in the embodiment in Fig. 4 shown.
  • the single valve device has the same parts or corresponding parts as the valve device 2 of the application device 1 described. In Fig. 4 this is indicated by the fact that the in Fig. 1 to 3 used reference numerals are used by item numbered after item 1.
  • a single valve device 2.1 according to Fig. 4 can be assembled in plurality to a application device according to the invention. It is then necessary, as in Fig. 4 not shown, supply fluid comb 11.1 connected by suitable, not shown sealing means in series. Such an assembly of individual valve devices is known per se.
  • a valve device 2.1 according to Fig. 4 has the features, functions and advantages explained with respect to the valve device 2 of the application device 1 described above in the exemplary embodiment.
  • the valve device 2.1 has independent inventive significance even without application in a application device according to the invention. It should be emphasized that the arrangement of the adjusting device 6.1, the annular chamber channel 72.1, which forms the straight longitudinal flow path, and the downwardly removable, formed by the valve housing 4.1 nozzle orifice in combination have advantages.
  • the straight flow path of the annular chamber channel 72.1 can be easily and effectively cleaned in the case of a nozzle panel which is easy to remove and attach.
  • the nozzle orifice can be quickly exchanged with the desired valve nozzle 3.1 and to be assembled. There is only one manipulation on the underside of the valve device 2.1. At the top / rear of the valve device 2.1 all parts remain mounted. The adjustment adjustment is easy and exact to carry out despite the replaceable nozzle orifice.
  • the straight flow path of the annular chamber channel 72.1 has the advantage that flow shadows are avoided, otherwise particles will stick in the region in which deposits are formed and / or impair the flow, for example as a result of air inclusions. Due to the longitudinal flow, the inner region of the magnetic coil 50.1 is cooled very effectively.

Landscapes

  • Coating Apparatus (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
EP07090124A 2007-06-14 2007-06-14 Auftragungseinrichtung zum Auftragen von Fluid auf ein Substrat mit Ventileinrichtungen, Verfahren zum Reinigen des Auftragungseinrichtung und Ventileinrichtung für die Auftragungseinrichtung Withdrawn EP2002898A1 (de)

Priority Applications (18)

Application Number Priority Date Filing Date Title
EP07090124A EP2002898A1 (de) 2007-06-14 2007-06-14 Auftragungseinrichtung zum Auftragen von Fluid auf ein Substrat mit Ventileinrichtungen, Verfahren zum Reinigen des Auftragungseinrichtung und Ventileinrichtung für die Auftragungseinrichtung
JP2010511513A JP2010531213A (ja) 2007-06-14 2008-05-20 基板に流体を塗布するためのバルブ機構を備えたアプリケータ、アプリケータのクリーニング法、及びアプリケータのバルブ機構
KR1020107000763A KR20100021651A (ko) 2007-06-14 2008-05-20 밸브장치를 구비하여 기판에 유체를 도포하는 도포장치와, 이 도포장치를 세척하는 방법, 및 이 도포장치용 밸브장치
CN200880020135A CN101784348A (zh) 2007-06-14 2008-05-20 用于将流体涂敷到基底上的具有阀门装置的涂敷装置、用于清洁涂敷装置的方法和用于涂敷装置的阀门装置
EP08758718A EP2162234A2 (de) 2007-06-14 2008-05-20 Auftragungseinrichtung zum auftragen von fluid auf ein substrat mit ventileinrichtungen, verfahren zum reinigen des auftragungseinrichtung und ventileinrichtung für die auftragungseinrichtung
PCT/EP2008/004122 WO2008151713A2 (de) 2007-06-14 2008-05-20 Auftragungseinrichtung zum auftragen von fluid auf ein substrat mit ventileinrichtungen, verfahren zum reinigen der auftragungseinrichtung und ventileinrichtung für die auftragungseinrichtung
EP08758719A EP2162235B1 (de) 2007-06-14 2008-05-20 Ventileinrichtung einer auftragungseinrichtung zum auftragen von fluid auf ein substrat und auftragungsvorrichtung
CA2690108A CA2690108A1 (en) 2007-06-14 2008-05-20 Applicator for applying fluid to a substrate, comprising valve mechanisms, method for cleaning said applicator, and valve mechanisms for said applicator
US12/664,439 US7837071B2 (en) 2007-06-14 2008-05-20 Valve device of an application device for applying fluid to a substrate, and applicator
US12/664,450 US20100132612A1 (en) 2007-06-14 2008-05-20 Applicator for applying fluid to a substrate, comprising valve mechanisms, method for cleaning said applicator, and valve mechanisms for said applicator
CA2690062A CA2690062C (en) 2007-06-14 2008-05-20 Valve device of an application device for applying fluid to a substrate, and applicator
PCT/EP2008/004123 WO2008151714A1 (de) 2007-06-14 2008-05-20 Ventileinrichtung einer auftragungseinrichtung zum auftragen von fluid auf ein substrat und auftragungsvorrichtung
KR1020107000762A KR101398760B1 (ko) 2007-06-14 2008-05-20 기판에 유체를 도포하는 도포장치의 밸브장치와, 도포장치
CN2008800200458A CN101711186B (zh) 2007-06-14 2008-05-20 用于将流体涂敷到基底上的涂敷装置的阀门装置以及涂敷装置
AT08758719T ATE520473T1 (de) 2007-06-14 2008-05-20 Ventileinrichtung einer auftragungseinrichtung zum auftragen von fluid auf ein substrat und auftragungsvorrichtung
JP2010511514A JP5228039B2 (ja) 2007-06-14 2008-05-20 基板に流体を塗布するための塗布装置のバルブ装置、及びアプリケータ
IL202427A IL202427A0 (en) 2007-06-14 2009-12-01 Applicator for applying fluid to a substrate, comprising valve mechanisms, method for cleaning said applicator, and valve mechanism for said applicator
IL202426A IL202426A (en) 2007-06-14 2009-12-01 Valve structure of a placement device for supplying liquids to the substrate and a tool for placement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07090124A EP2002898A1 (de) 2007-06-14 2007-06-14 Auftragungseinrichtung zum Auftragen von Fluid auf ein Substrat mit Ventileinrichtungen, Verfahren zum Reinigen des Auftragungseinrichtung und Ventileinrichtung für die Auftragungseinrichtung

Publications (2)

Publication Number Publication Date
EP2002898A1 true EP2002898A1 (de) 2008-12-17
EP2002898A8 EP2002898A8 (de) 2009-02-25

Family

ID=38713602

Family Applications (3)

Application Number Title Priority Date Filing Date
EP07090124A Withdrawn EP2002898A1 (de) 2007-06-14 2007-06-14 Auftragungseinrichtung zum Auftragen von Fluid auf ein Substrat mit Ventileinrichtungen, Verfahren zum Reinigen des Auftragungseinrichtung und Ventileinrichtung für die Auftragungseinrichtung
EP08758719A Not-in-force EP2162235B1 (de) 2007-06-14 2008-05-20 Ventileinrichtung einer auftragungseinrichtung zum auftragen von fluid auf ein substrat und auftragungsvorrichtung
EP08758718A Withdrawn EP2162234A2 (de) 2007-06-14 2008-05-20 Auftragungseinrichtung zum auftragen von fluid auf ein substrat mit ventileinrichtungen, verfahren zum reinigen des auftragungseinrichtung und ventileinrichtung für die auftragungseinrichtung

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP08758719A Not-in-force EP2162235B1 (de) 2007-06-14 2008-05-20 Ventileinrichtung einer auftragungseinrichtung zum auftragen von fluid auf ein substrat und auftragungsvorrichtung
EP08758718A Withdrawn EP2162234A2 (de) 2007-06-14 2008-05-20 Auftragungseinrichtung zum auftragen von fluid auf ein substrat mit ventileinrichtungen, verfahren zum reinigen des auftragungseinrichtung und ventileinrichtung für die auftragungseinrichtung

Country Status (9)

Country Link
US (2) US20100132612A1 (enrdf_load_stackoverflow)
EP (3) EP2002898A1 (enrdf_load_stackoverflow)
JP (2) JP5228039B2 (enrdf_load_stackoverflow)
KR (2) KR20100021651A (enrdf_load_stackoverflow)
CN (2) CN101711186B (enrdf_load_stackoverflow)
AT (1) ATE520473T1 (enrdf_load_stackoverflow)
CA (2) CA2690062C (enrdf_load_stackoverflow)
IL (2) IL202427A0 (enrdf_load_stackoverflow)
WO (2) WO2008151714A1 (enrdf_load_stackoverflow)

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EP2392408A1 (de) * 2010-06-02 2011-12-07 Windmöller & Hölscher KG Vorrichtung zum Auftragen von Leim sowie Verfahren zum Reinigen derselben
EP2801409B1 (de) * 2013-05-07 2020-04-08 Amazonen-Werke H. Dreyer GmbH & Co. KG Flüssigkeitsleitung mit zugeordnetem Düsenkörper
US11167297B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent
US11203030B2 (en) 2016-12-14 2021-12-21 Dürr Systems Ag Coating method and corresponding coating device
US12383921B2 (en) 2016-12-14 2025-08-12 Dürr Systems Ag Coating device and corresponding coating process
WO2018108577A1 (de) * 2016-12-14 2018-06-21 Dürr Systems Ag Druckkopf und zugehöriges betriebsverfahren
EP3702045A1 (de) * 2016-12-14 2020-09-02 Dürr Systems AG Druckkopf und zugehöriges betriebsverfahren
US11154892B2 (en) 2016-12-14 2021-10-26 Dürr Systems Ag Coating device for applying coating agent in a controlled manner
US11167308B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Print head for the application of a coating agent on a component
US11167302B2 (en) 2016-12-14 2021-11-09 Dürr Systems Ag Coating device and associated operating method
WO2018108571A1 (de) * 2016-12-14 2018-06-21 Dürr Systems Ag Druckkopf mit temperiereinrichtung
US12186763B2 (en) 2016-12-14 2025-01-07 Dürr Systems Ag Print head with a displacing mechanism for a nozzle row
US11298717B2 (en) 2016-12-14 2022-04-12 Dürr Systems Ag Print head having a temperature-control device
US11338312B2 (en) 2016-12-14 2022-05-24 Dürr Systems Ag Print head and associated operating method
US11440035B2 (en) 2016-12-14 2022-09-13 Dürr Systems Ag Application device and method for applying a multicomponent coating medium
US11504735B2 (en) 2016-12-14 2022-11-22 Dürr Systems Ag Coating device having first and second printheads and corresponding coating process
US11813630B2 (en) 2016-12-14 2023-11-14 Dürr Systems Ag Coating method and corresponding coating device
US11878317B2 (en) 2016-12-14 2024-01-23 Dürr Systems Ag Coating device with printhead storage
US11944990B2 (en) 2016-12-14 2024-04-02 Dürr Systems Ag Coating device for coating components
US11975345B2 (en) 2016-12-14 2024-05-07 Dürr Systems Ag Coating installation and corresponding coating method
EP3424707A1 (de) 2017-07-07 2019-01-09 Covestro Deutschland AG Verfahren zur herstellung von verbundelementen mit gezieltem auftragen eines haftvermittlers
WO2019007898A1 (de) 2017-07-07 2019-01-10 Covestro Deutschland Ag Verfahren zur herstellung von verbundelementen mit gezieltem auftragen eines haftvermittlers

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Publication number Publication date
KR20100021651A (ko) 2010-02-25
CN101711186A (zh) 2010-05-19
IL202427A0 (en) 2010-06-30
WO2008151713A2 (de) 2008-12-18
ATE520473T1 (de) 2011-09-15
KR20100051786A (ko) 2010-05-18
WO2008151714A1 (de) 2008-12-18
JP2010528852A (ja) 2010-08-26
CA2690108A1 (en) 2008-12-18
CN101784348A (zh) 2010-07-21
US20100132612A1 (en) 2010-06-03
JP5228039B2 (ja) 2013-07-03
EP2162234A2 (de) 2010-03-17
EP2162235A1 (de) 2010-03-17
IL202426A (en) 2014-06-30
WO2008151713A8 (de) 2009-03-12
CN101711186B (zh) 2013-07-17
JP2010531213A (ja) 2010-09-24
KR101398760B1 (ko) 2014-06-27
WO2008151713A3 (de) 2009-05-07
EP2002898A8 (de) 2009-02-25
CA2690062A1 (en) 2008-12-18
US7837071B2 (en) 2010-11-23
CA2690062C (en) 2015-03-31
US20100170918A1 (en) 2010-07-08
EP2162235B1 (de) 2011-08-17
IL202426A0 (en) 2010-06-30

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