EP2853312A2 - ICC metering - Google Patents
ICC metering Download PDFInfo
- Publication number
- EP2853312A2 EP2853312A2 EP14003987.6A EP14003987A EP2853312A2 EP 2853312 A2 EP2853312 A2 EP 2853312A2 EP 14003987 A EP14003987 A EP 14003987A EP 2853312 A2 EP2853312 A2 EP 2853312A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- color
- valves
- atomizer
- metering device
- metering
- 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
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Images
Classifications
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- 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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/16—Arrangements for supplying liquids or other fluent material
- B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
- B05B5/1675—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive the supply means comprising a piston, e.g. a piston pump
-
- 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
- B05B12/1409—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 the selection means being part of the discharge apparatus, e.g. part of the spray gun
Definitions
- the invention relates to a coating device for the serial coating of workpieces with different shades as well as dosing devices and containers which can be used for this purpose.
- dosing device used here preferably means volumetric dosing devices, such as gear pumps or piston dosing devices, which can be driven by a controllable motor such that the amount of material (instantaneous flow) applied by the atomizer during the coating depends on demand, for example as a function of the respective workpiece area and other parameters, such as in EP 1 314 483 A2 or DE 691 03 218 T2 is explained.
- the volumetric metering typically occurs by controlling the speed of a gear pump or the piston speed of a piston meter.
- Gear metering pumps are preferred in many cases because of their small size, continuous paint delivery and cost advantages.
- Piston dispensers have the advantage of higher dosing accuracy by avoiding the slip between the gear pair and the receiving housing of Zahnraddosierpumpen, and in Electrostatic coating equipment, in which high-voltage insulation between the atomizers and their grounded supply system is required, can be achieved with the discontinuous paint delivery operation of a piston meter easily the necessary electrical isolation. Further advantages will be explained later.
- a serving as a lacquer buffer container which is already filled to reduce the required color change times in a color change with the new color, while still painted with the previous color from the piston dispenser.
- This storage container can also be defined as part of a metering device in the sense of the invention. To empty the storage container, this may also contain a piston in the cylinder.
- volumetric dosage can eg according to EP 1 287 900 A2 also a color pressure regulator or according to EP 1 346 775 A1 serve the main needle valve of the atomizer as an actuator of a control circuit for controlling the amount of ink or effluent rate and thus as a metering device.
- color changer color change valve assemblies in Block construction (ie as a mechanical unit) used to connect the numerous color inputs via a central channel with the color output leading to the atomizer. Due to their usual modular design, they are easily adaptable to different numbers of selectable colors.
- Typical modular color changers for wet paint are for example off DE 198 36 604 A1 and DE 198 46 073 A1 while a basically similar color changer for powder coating in the DE 601 03 281 T2 is described.
- the rinsing of color changers deals with the DE 199 51 956 A1 , Such color changer are typically upstream of the known gear or Kolbendosiervorraumen or possibly the mentioned paint storage container.
- the installation of a color change valve arrangement in the atomizer also referred to in practice as the ICC technique (integrated color changer), has the advantage of substantially reducing color and detergent losses during the color change.
- the color change losses for example, from about 45 ml of color per atomizer and color change in conventional color change technology can be reduced to only about 4 ml.
- a similar reduction results for the detergent losses.
- the color change period can be halved in typical cases, such as from 12 seconds to 6 seconds, with the result of an increase in coating machine capacity of about 5-10% or, for example, 30-60 vehicles daily.
- color changers are common in paint shops because, as is well known, they allow rapid changeover from one color to another during the paint shop. But they have the principal disadvantage of unavoidable loss of color when flushing the more or less large central channel at each color change.
- the color changer After optimizing the color losses in, for example, hoses, metering devices, etc., the color changer often represents the element of the coating unit with the greatest single loss.
- the color change losses increase with the number of connected colors and the resulting length of the central channel, so that the number of hues often has to be limited undesirable.
- the central channel is divided into independently rinsable sections, wherein the often required high-runner colors, ie the colors are connected with high consumption volume at the front end located at the color output, while rare at the rear, the color output facing away required colors (low-runner) are connected. While the often needed front section is always flushed independently of the rear section, the less frequently needed section can be flushed together with the other section. Since in a color change is no longer flushed as in conventional color changers always the entire central channel, resulting in lower losses of paint and rinsing liquid. But even these remaining color change losses are undesirable, especially for colors often required.
- a color pressure regulator is arranged, which provide for a form control of a metering pump or, as already mentioned above, can serve as an actuator for color quantity control.
- the dead space of this color pressure regulator must be rinsed with every color change.
- It is an object of the invention is a coating device or devices suitable for the coating of workpieces Specify in particular with different frequently required shades that allow a color change with minimal or little color, detergent and time losses.
- the associated, controlled by external signals for color selection color valves are directly attached to the metering or built into this, but the color valves could also in the known manner ( EP 1502658 A1 ) form a typical color changer upstream of the metering device with a central output channel common to the colors.
- the metering device and / or the paint valves may be more convenient to arrange the metering device and / or the paint valves, possibly in a conventional color changer, although also in the vicinity of the atomizer, but a little further away from him, for example, in or on an arm of the atomizer moving Coating robot or other programmable motion machine.
- the color changer provided for possibly many but less frequently required shades is always arranged separately and further away from the atomizer, preferably in or on one arm of the coating robot or the like.
- Like. Are arranged, as is possible in many cases for the high-runner color valves, but possibly in or on the wrist-carrying front robot arm, if not too many colors are connected.
- this color changer could also be further away from the atomizer, ie in the second robot arm or moving along (on the so-called axis 7) or even outside the painting robot.
- Color losses in a color change can be, for example, in this case, but also for the high-runner ink supply described by those skilled in the per se known additional measures such as in particular the pig technology in conjunction with pushing back the remaining in the line colors to the supply system ("Reflow”) and / or almost complete consumption of each color in the line when applying (“pushout”) avoid.
- the output of the separate color changer for less frequently required colors is preferably connected in parallel to the color lines of the most frequently required high-runner colors to its own additional input of the metering device or possibly its storage container.
- the output of this color changer can also be connected directly to the atomizer via a line running parallel to the metering device of the high-runner colors and its own metering device, which can be located in the atomizer or in a largely arbitrary distance outside the atomizer.
- d. H. usually at the main needle valve.
- a further matching color changer is provided, which is connected to color lines for the same color tones.
- This can avoid unwanted time losses during color change, because during the rinsing of a color changer and its output line and during the preparation for the next color (possibly including reflow) of the atomizer can be supplied from the other color changer.
- This alternating ink supply is usually referred to as A / B operation (cf. EP 1314483 A ).
- the two matching supply branches (A and B) are connected parallel to each other to the atomizer, in preferred embodiments of the invention described here thus to two inputs of the metering device (possibly its storage container) or otherwise via its own metering device to the main needle valve of the atomizer.
- a / B operation is also for the invention High-runner ink supply possible, for which then parallel to the arrangement of the metering device and the controlled color valves frequently required shades a matching arrangement of a metering device and controlled color valves is provided, in which case the color valves of the two arrangements of color lines for the same Shades are connected.
- a single, but designed for alternating operation piston feeder in principle according to EP 1666158 A2 used, that is, a motor-driven piston dispenser with a cylinder whose separate areas through the piston each have a plurality of controlled inputs for the selectable different shades and one connected to the main needle or other output valve of the atomizer controlled output.
- any color changer for less than the z. B. 7 or less high-runner colors required colors may suitably contain at least two line sections, open into each of which several controlled color valves for coating materials with selectable different shades, and of which at least one line section is irrigated independently of at least one other line section, wherein the Line sections are connected by a controlled shut-off valve with each other and / or with an output line of the color changer.
- Such color changer are in itself from the EP 1502657 A2 Known and allow to reduce the color change losses meaningful further differentiation between different colors often required, with less frequently needed colors are connected to the further away from the color output one line section of the color changer and the other colors at its located at the color output other line section.
- these metering devices can also work simultaneously to supply the application organ with two components of a coating material, such as 2K lacquers, coming from separate supply lines.
- the dosing device preferably installed or attached in the nebulizer or in its vicinity a piston dispenser with an automatically controllable for changing the piston speed during the application dosing drive, for which one of the known from the prior art constructions can be used.
- the piston dispenser according to the invention or possibly its upstream storage container has in contrast to the known constructions not only one or at most (as in the case of the mentioned EP 1666158 ) two inputs, but for each of the selectable frequently required shades at least one input and at least one common for the feedable color materials output.
- a piston dispenser In addition to the low material and time losses during color change, a piston dispenser has particular advantages over gear metering pumps and other metering systems such as better flushability with less flushing effort and the possibility of pressing back the colors (reflow) in the supply system such. B. ring lines directly over the paint valves, without having to be filled for a color changer and the connection between the dispenser and the color changer. Another significant advantage of the piston dispenser is that it does not require a color pressure regulator, unlike currently available gear metering pumps, for example. which usually for reasons of metering accuracy for each connected color line, a separate color pressure regulator would have to be connected upstream. The piston dispenser avoids the disadvantages of pressure regulators such as costs, color losses during color change, space requirements and weight loading of the robot axes.
- Such a piston dispenser may also be useful and advantageous for itself and independently of the coating device described here, ie also in any other ink supply systems including systems in which the piston dispenser is not located in or in the atomizer.
- the piston dispenser is not located in or in the atomizer.
- the color-change valves may be incorporated into a gear metering pump of conventional type be attached to the metering pump.
- the paint valves may also be placed in or on a container of a coating apparatus such as e.g. a coating robot on or be grown, which does not serve for dosing, but in a conventional manner other purposes such as as an intermediate or reservoir.
- a coating apparatus such as e.g. a coating robot on or be grown, which does not serve for dosing, but in a conventional manner other purposes such as as an intermediate or reservoir.
- the number of on or in a metering device or a container of a coating device built or attached color valves for a corresponding number of color inputs depends on the particular case, but is usually more than two and preferably more than four.
- the color lines 13 for the most frequently used in coating operation or high-runner colors (labeled 2 to 6) connected to the paint valves FV2 to FV6 of the metering device 10, which fed, for example, as spur lines of the usual in coating lines ring lines be or even be designed as a loop.
- One of the color valves, here FV1 is connected via a color line 15 to the output of an external color changer 12 and serves to separate the high-runner color-changing region from the low-runner color changer 12.
- the color changer 12 can have explained above conventional modular block design with a central channel to which the paint lines 14 are connected via the color valves of the color changer for less frequently needed or low-runner colors. Preferred embodiments of the color changer 12 will be described below with reference to FIG Fig. 3 described.
- the metering device 10 and / or the paint valves FV1 to FV6 can preferably be located in the atomizer or movable with it in its vicinity, in particular between the atomizer and the wrist of a painting robot or in its forearm.
- the paint valves are preferably attached to the metering device 10 (piston dispenser, storage container, metering pump or, if appropriate, the measuring cell or the color pressure regulator known per se metering systems, etc.) or incorporated therein.
- the external color changer 12 can be located at a location which, although it is intended to be as close as possible to the atomizer in terms of color change losses, but otherwise is largely arbitrary. For dynamic and space reasons, for example, a location on or in the rear robot arm may be expedient if an arrangement further down can not be realized.
- the metering drive can be located outside of the metering pump (for example, as in FIG EP 1000667 B ). In particular, however, the metering drive can also be installed in the piston dispenser or in the metering pump.
- the ink supply according to the invention is suitable for any atomizer, in particular also for electrostatic atomizers, which is known to charge the coating material to a high voltage potential, for example of the order of 100 kV.
- located in the atomizer sensors and actuators including the metering device and its electrical metering drive in operation are at the high voltage potential of the atomizer, as well as possibly provided instead of the usual air turbine electric drive motor of the bell cup, if it is a rotary atomizer ,
- the dosing drive lying at high voltage potential and possibly also lying on this potential electric bell cup motor can be supplied by a located at least with its secondary coil assembly in the atomizer isolation transformer with electrical power.
- the isolation transformer forms between its primary and secondary circuits a high voltage insulation route and thus separates the supplied by him, located in the atomizer consumers including the two motors galvanically leading from the atomizer in the electrical power supply
- control and sensor signals of the actuators and sensors of the atomizer can be transmitted floating in or out of the atomizer, for example, optically or via radio.
- the external signals controlling the metering drive can also be transmitted together with other signals via a common cable or radio link, etc.
- the operation of the usual main needle valve or other output or main valve of the atomizer can be controlled by the pressure generated at the output (11) of the main valve upstream of the metering device.
- the main valve is thus opened by the pressure of the metering device, as soon as and as long as a corresponding pressure is present, and automatically closed in the absence of pressure.
- the principle of operation here corresponds to that of a conventional in coating systems color pressure regulator, such as DÜRR / BEHR Technical Manual, Introduction to the technology of car painting, 04/1999 - 28.04.1999, Chap.
- control input of the main valve is connected to the output of the described metering device.
- a piston dispenser 20 which consists essentially of a cylinder 21, a piston 23 displaceable in the cylinder of the piston rod 22 and a (not shown) metering drive.
- the components of the piston dispenser 20 may consist of high voltage reasons of insulating material and to improve the dosing of a ceramic material.
- the dosing drive can usually contain an electric motor moving the piston rod, which is controlled in a manner known per se such that the instantaneous amount of the applied coating material can be changed as required by changing the piston speed during the coating process.
- piston dispensers operating on this principle are off EP 1384885 B and WO 93/23173 known.
- the piston dispenser 20 has a plurality of, in the illustrated example, five color inputs E1 to E5, each having a color valve FV1 'to FV5' and thus connected to one of five color lines 13 'for different high-runner colors.
- An additional, also provided with a valve VV input E6 is provided for introducing a serving as a rinsing agent diluter V and also for cleaning it cylinder 21 serving pulse air PL.
- the cylinder 21 has an output A with an output valve VA, to which a leading to the main needle or output valve of the atomizer output line of the piston meter is connected.
- the paint valves FV are preferably mounted on or built into the cylinder bottom 24 of the piston dispenser, as indicated by the dashed line 24 '. Accordingly can also be the purge valve VV and / or the output valve FA attached or installed.
- the piston is usually not driven by an electric motor, but in the filling direction of the coating material and in the discharge direction of a pressure medium such as compressed air.
- piston dispenser 20 for alternate operation of the cylinder areas separated by the piston 23 according to FIG EP 1666158 A2
- an arrangement corresponding to the inputs E1 to E6 and the output A with the associated valves could be provided in the cylinder bottom of the piston dispenser opposite the cylinder bottom 24.
- external color changer 12 for less needed colors could be the in Fig. 3 at (a) have shown schematically known design, as for example DE 19836604 A1 . DE 19846073 A1 or DE 19951956 A1 known per se. It consists essentially of color valves for the illustrated example twenty-four different colors, purge valves for pulse air PL and thinner V and a recirculation valve RF, which are connected to the central channel 30a of the color changer.
- Fig. 3 at (b) shown schematically color changer 12b substantially corresponds to the embodiment according to Fig. 2 said EP 1502657 A2 the entire contents of which are hereby incorporated into the present description.
- the two channel sections are denoted by 30b1 and 30b2 and connected in series by the controlled shut-off valve 16b.
- To the designated with 1 to 6 color valves of the section 30b1 the more frequently required colors are connected to the other color valves of section 30b2, however, the less frequently required colors. This results in practice lower color change losses than in the standard color changer according to Fig. 3 (a) ,
- the in Fig. 3 at (c) shown color changer 12c which is substantially the embodiment according to Fig. 3 or Fig. 4 of the EP 1502657 A2 can correspond, consists of the two parallel channel sections 30c1 and 30c2, which are common to the illustrated color, flushing and return valves and are connected via a respective controllable shut-off valve 16c1 and 16c2 with the output line of the color changer.
- This color changer has particular advantages in addition to low color change losses such as relatively small footprint and low weight or a larger number of connectable colors for a given size.
- the color changer is also suitable for A / B operation. This makes it possible to achieve a consistently short color change time for all selectable colors.
- Fig. 2 For example, the color valves for the high-runner colors can be placed almost flush, ie without loss of color, on the inner wall of the cylinder of the piston dispenser or, if appropriate, of its intermediate storage container (cf. Fig. 7 ).
- Fig. 4 shows a schematic opposite Fig. 2 slightly modified embodiment of the invention, in which the color valves FV43 connected to the high-runner lines 43 open into a common channel 41, which in turn leads into the cylinder of the piston dispenser or possibly its intermediate storage container 40.
- the color line 45 is connected from the output of the external color changer 42 for the low-runner colors on one of the two paint supply systems for high-runner or low-runner colors separating shut-off valve V45.
- the color line 45 may be an integral part of the usual central channel of the color changer 42 and pass into the channel 41 or form this (see. Fig. 8 ).
- the color changer 42 may, for example, the arrangement to be taken from the color valves F1 to Fn for the n different available low-runner colors, the return valve RF2, the purge valves V1 and PL1 for thinner or pulse air and the representation between the color and Return valves on the one hand and the purge valves on the other hand arranged shut-off valve SPVFW included.
- the low-runner color changer can also follow one of the arrangements Fig. 3 correspond.
- pFW is the pressure of the coating material in the common low-runner colors common channel of the color changer and thus the color line 45 measuring color pressure sensor to improve the process reliability.
- the color loss-rich central channel of the color changer 42 only has to be filled with this color during painting with one of the low-runner colors.
- the color changer 42 is disconnected with the shut-off valve V45.
- Fig. 5 schematically an embodiment of the invention is shown, in which the metering device is formed by a Zahnraddosierpumpe 50, which differs from conventional metering pumps in that it has several inputs to which via respective color valves FV53 the color lines 53 for the high-runner colors and connected in parallel thereto via the valve V55, the color line 55 from the output of the separate color changer 52 for the low-runner colors.
- the color valves FV53 with which the inputs for the high-runner colors are provided, can preferably be placed directly on the metering gear wheels of the metering pump 50 almost without loss of color.
- the paint valves may preferably be designed as needle valves per se conventional type.
- the shut-off valve V55 for the low-runner colors may be installed in or upstream of the input of the metering pump 50.
- the color changer 52 can after Fig. 4 match or even one of the color changers after Fig. 3 ,
- the low-runner color changer according to 4 and FIG. 5 can also for embodiments according to Fig. 1 and Fig. 2 be used.
- an elongated paint container 60 is shown, which may be, for example, the storage container of the aforementioned known metering device or instead also according to a piston dispenser Fig. 2 can act.
- the example, four or five high-runner valves FV63 are shown as parallel to the container axis side by side in the end wall 69 of the container 60, possibly in addition to another valve VF65 for the low-runner colors.
- the associated color lines controlled by these valves may conveniently be connected by radial paint connections (not shown) distributed over the circumference of the container.
- the shut-off valve (V45 in.) Belonging to the low-runner line (not shown) Fig. 4 ) may also be designed differently than the valves FV63 and be arranged elsewhere.
- the container 60 may be at least partially circular cylindrical or with a different cross section and contain a displaceable piston.
- the high-runner color valves FV 63, the signal-controlled needle valve units of the illustrated per se conventional design can be, preferably so with their needles 73 in the end wall 76 (69 in Fig. 6 ) used, the needle ends 78 are at least approximately in the plane of the inner side 71 of the end wall 76 with the valve closed, so aligned with this level.
- the conical valve seat of the color valve FV63 can be seen.
- the opening 77 one of the radially extending from the periphery in the end wall 76 color ports for the opened or closed by the color valves FW63 high-runner color lines (13 in Fig. 1 ) are used.
- valve assembly is also a radial installation or mounting of the paint valves FV63 (valves FV in Fig. 1 respectively. Fig. 2 ) possible, for example, similar to one of the embodiments according to 8 to 14 ,
- the high-color runner valves in the described embodiments of the invention should be as small as possible so that as many valves as possible can be accommodated in the available limited space.
- a built-in or attached valve for the connection of low-runner colors eg valve FV1 in Fig. 1 .
- the color valves of the remote or separate low-runner color changer can be built larger. The larger size has the advantage that with a given color printing, the flow openings larger and the Lackfcher beau can be correspondingly smaller and therefore there is a lower risk of damage to the paint material.
- valve assembly is according to an embodiment according to Fig. 4 suitable in which the illustrated five high-runner color valves FV83 radially around the central channel 85 of the low-runner color changer (42 in Fig. 4 ) are distributed and with the ends 88 of their valve needles adjacent to the circumference of the central channel 85.
- the paint valves FV83 can here be screwed in a radial plane common to their needle axes in the circumference of a wall member 89 which may form an end wall of said container or may be attached to the actual end wall. Between the paint valves FV83, the associated color connections 84 for the high-runner colors are shown to be distributed over the circumference of the wall element 89.
- the illustrated star-shaped valve arrangement other arrangements known from color changers are also conceivable.
- Fig. 9 shows a convenient arrangement of a container 90 with the high-Runner valves and associated radial paint connections 97 containing end wall 69 and 76, for example according to Fig. 7 and with the upstream low-runner color changer 92 in the forearm 91 of a painting robot.
- the color changer 92 has the modular block design typical of color changers in coating systems and is constructively mounted in close proximity to the end wall 69.
- a very similar arrangement is also with the embodiment according to Fig. 8 possible.
- the arrangement of the container 90 next to a (only partially visible) piston dispenser 99 and other details are shown in the drawing and can otherwise the in EP 1 772 194 A2 described system, so that a more detailed description is unnecessary.
- Fig. 10 shows a possibility for the structural arrangement of the high-runner color valves FW103 at the paint inlet 105 of a gear metering pump 100 according to the schematic representation in Fig. 5 .
- the two Dosier leopard scholar 101 and the drive shaft 102 correspond to conventional constructions.
- the input range of the metering pump according to the invention is shown only incomplete.
- color valves similar needle valve units as in the other embodiments of the invention can be installed, for example as shown radially into the front plate unit of the dosing pump 100, not shown.
- Also controlled by the color valves FW103 high-runner color lines are not shown.
- the color input 105 can be connected to the separate low-runner color changer according to the invention via a shut-off valve V55 (FIG. Fig. 5 ), which may be formed by the valve V105 or disposed elsewhere.
- 106 designates the color output of the metering pump 100.
- Fig. 11 if such a container 110 is shown, which may be cylindrical as shown or may have another, preferably elongated shape with a longitudinal axis.
- Automatically signal-controlled needle valves FV113 are distributed around the circumference of the container 110 in the illustrated example 18, whose valve needles 114 can lie transversely to the longitudinal axis of the container 110 in a common radial plane.
- the needle valves FV113 may be inserted radially into a flange 112 enclosing, for example, the cylindrical wall 111 of the container 110 and penetrating it with its needles 114.
- the ends 115 of the valve needles resting against the valve seat can be flush or nearly flush with the inner surface 116 of the container wall 111, so that similarly small color change losses occur, as in the exemplary embodiments, for example Fig. 7 . Fig. 8 and Fig. 10 , The leading into the container 110, controlled by the color valves FV113 color lines are not shown.
- Coating systems are also conceivable in which the color inputs of the container 110 arranged, for example, on a coating robot are docked in a manner known per se with quick-coupling valves to corresponding stationary paint connections of a paint booth.
- Fig. 12 is different from that Fig. 11 essentially only in that the needles 124 of the illustrated example 12 color valves FV123 are not in a radial plane, but are arranged inclined relative to the tank axis perpendicular to the radial plane, so that the in Fig. 13 recognizable oblique arrangement of valves FV123 results.
- the valve seats and thus with the valve closed, the needle ends in the immediate vicinity of the inner surface 126 of the container 120 with the advantage correspondingly minimized color loss during color change.
- FIGS. 12 and 13 By displacing or spacing two or more groups of color valves distributed annularly around the periphery of the container along the container axis, as in FIG Fig. 14 is shown, you can connect a correspondingly larger number - in the illustrated example 30 - of valve-controlled color lines for different selectable colors to the container 140.
- the illustrated two groups of color valves FV143 and FV143 'can, as in FIGS. 12 and 13 be arranged obliquely, expediently with mutually opposite inclination angle with respect to the radial plane.
- One or each group of color valves may also be as in Fig. 11 be arranged in a common radial plane perpendicular to the container axis. Incidentally, the embodiment according to Fig. 14 those after FIGS. 12 and 13 correspond.
Abstract
In oder nahe bei dem Zerstäuber einer Beschichtungseinrichtung zur Serienbeschichtung von Werkstücken mit unterschiedlichen Farbtönen befindet sich eine Dosiervorrichtung (10) insbesondere mit einem Kolbendosierer (20) oder einer Dosierpumpe (100), die für jede der in der Praxis am häufigsten benötigten Farben einen eigenen Eingang mit eingebautem Farbventil (FV) hat. Für weniger häufig benötigte Farben kann ein gesonderter Farbwechsler (12) vorgesehen sein, dessen Ausgang mit einem weiteren Eingang der Dosiervorrichtung (10) oder über eine eigene Dosiervorrichtung mit dem Ausgangsventil des Zerstäubers verbunden ist.In or near the atomizer of a coating device for serial coating of workpieces with different colors is a metering device (10) in particular with a piston dispenser (20) or a metering pump (100), which has its own input for each of the colors most commonly used in practice with built-in color valve (FV) has. For less frequently required colors, a separate color changer (12) may be provided, whose output is connected to a further input of the metering device (10) or via its own metering device to the outlet valve of the atomizer.
Description
Die Erfindung betrifft eine Beschichtungseinrichtung zur Serienbeschichtung von Werkstücken mit unterschiedlichen Farbtönen sowie hierfür verwendbare Dosiervorrichtungen und Behälter.The invention relates to a coating device for the serial coating of workpieces with different shades as well as dosing devices and containers which can be used for this purpose.
Beispielsweise handelt es sich hierbei um die Serienlackierung von Fahrzeugkarossen und deren Teilen mit elektrostatischen oder sonstigen Zerstäubern einschließlich Rotationszerstäubern, Luftzerstäubern usw., die das Beschichtungsmaterial unter Verwendung einer automatisch gesteuerten Dosiervorrichtung applizieren. Mit dem hier verwendeten Begriff Dosiervorrichtung sind vorzugsweise volumetrisch dosierende Vorrichtungen wie z.B. Zahnradpumpen oder Kolbendosierer gemeint, die so von einem steuerbaren Motor angetrieben werden können, dass während der Beschichtung die von dem Zerstäuber applizierte Materialmenge (Momentandurchfluss) bedarfsabhängig, etwa in Abhängigkeit von dem jeweiligen Werkstückbereich und sonstigen Parametern geändert werden kann, wie z.B. in
Zahnraddosierpumpen werden in vielen Fällen wegen geringer Baugröße, kontinuierlicher Lackförderung und Kostenvorteilen bevorzugt.Gear metering pumps are preferred in many cases because of their small size, continuous paint delivery and cost advantages.
Kolbendosierer haben dagegen den Vorteil höherer Dosiergenauigkeit durch Vermeidung des Schlupfs zwischen dem Zahnradpaar und dem Aufnahmegehäuse von Zahnraddosierpumpen, und in elektrostatischen Lackiereinrichtungen, in denen Hochspannungsisolation zwischen den Zerstäubern und ihrem geerdeten Versorgungssystem erforderlich ist, lässt sich mit dem diskontinuierlichen Lackförderbetrieb eines Kolbendosierers auf einfache Weise die notwendige Potenzialtrennung erreichen. Weitere Vorteile werden noch erläutert werden.Piston dispensers, however, have the advantage of higher dosing accuracy by avoiding the slip between the gear pair and the receiving housing of Zahnraddosierpumpen, and in Electrostatic coating equipment, in which high-voltage insulation between the atomizers and their grounded supply system is required, can be achieved with the discontinuous paint delivery operation of a piston meter easily the necessary electrical isolation. Further advantages will be explained later.
Wie in
Statt der volumetrischen Dosierung kann z.B. gemäß
Es ist bekannt, Dosiervorrichtungen in den Zerstäuber einzubauen, z.B. aus
Wenn ein Zerstäuber Beschichtungsmaterial mit einer großen, aber beispielsweise durch ein Ringleitungssystem begrenzten Anzahl von Farbtönen applizieren soll und ein Farbwechsel in möglichst kurzer Zeit erfolgen soll, werden üblicherweise als Farbwechsler bezeichnete Farbwechselventilanordnungen in Blockbauweise (d.h. als mechanische Einheit) eingesetzt, die die zahlreichen Farbeingänge über einen Zentralkanal mit dem zu dem Zerstäubungsorgan führenden Farbausgang verbinden. Aufgrund ihres üblichen modularen Aufbaus sind sie problemlos an unterschiedlich viele wählbare Farben anpassbar. Typische modulare Farbwechsler für Nasslack sind beispielsweise aus
Wenn nur wenige Farben benötigt werden, besteht auch die Möglichkeit, einen Farbwechsler in den Zerstäuber einzubauen, ggf. mit einer ihm nachgeschalteten Dosiervorrichtung (
Nachteilig ist bei bekannten Systemen mit in den Zerstäuber eingebautem Farbwechsler die geringe, durch den Platzbedarf des Farbwechslers und der in den Zerstäuber führenden Farbleitungen eingeschränkte Anzahl wählbarer Farbtöne. Statt über einen der üblichen Farbwechsler, also einen modularen Farbwechselblock mit einem den Farben gemeinsamen Ausgangskanal, kann man auch die Farben z.B. von Ringleitungen durch je einen in den Zerstäuber führenden Farbschlauch direkt über in dem Zerstäuber befindliche Farbventile dem Applikationsorgan zuführen, wobei für jede dieser Farben eine eigene separate Dosiervorrichtung vorgesehen sein kann, die folglich bei einem Farbwechsel nicht gespült werden muss, und wobei die Möglichkeit besteht, eine größere Anzahl seltener benötigter Farben (sogenannte Low-Runner) über einen externen Farbwechsler anzuschließen, wie in der deutschen Patentanmeldung 10
Den Vorteil einer unbegrenzt großen Anzahl applizierbarer Farbtöne bieten Sonderfarbversorgungssysteme, bei denen die Farben nicht aus Ringleitungen kommen, sondern in einem Farbmischraum erzeugt und über einen Farbwechsler zu dem Zerstäuber geleitet werden. Diese Systeme sind allerdings relativ aufwändig und haben im Vergleich mit Ringleitungssystemen höhere Farbwechselverluste.The advantage of an unlimited number of applicable color tones offer special ink supply systems in which the colors do not come from ring lines, but in a color mixing room and a color changer to the atomizer be directed. However, these systems are relatively complex and have higher color change losses compared to loop systems.
Wie schon erwähnt wurde, sind Farbwechsler in Lackieranlagen allgemein üblich, weil sie bekanntlich während des Lackierbetriebs eine rasche Umstellung von einer Farbe zur anderen ermöglichen. Sie haben aber den prinzipiellen Nachteil unvermeidbarer Farbverluste beim Spülen des mehr oder weniger großen Zentralkanals bei jedem Farbwechsel. Nach Optimierung der Farbverluste in beispielsweise gemolchten Schläuchen, Dosiervorrichtungen usw. stellt der Farbwechsler oft das Element der Beschichtungsanlage mit dem größten Einzelverlust dar. Der Farbwechselverlust ist umso größer, je größer der Querschnitt des Zentralkanals gewählt wird, um größere Farbmengen in kürzerer Zeit durch den Farbwechsler leiten zu können, wie es aus verschiedenen Gründen erwünscht sein kann (Sonderfarbversorgungen, Behältertechnik, höherer Lackiermengen, kürzere Taktzeiten aufeinanderfolgender Werkstücke, höhere Viskositäten usw.). Außerdem wachsen die Farbwechselverluste mit der Anzahl der angeschlossenen Farben und der sich hieraus ergebenden Länge des Zentralkanals, so dass die Anzahl der Farbtöne oft unerwünscht begrenzt werden muss.As has already been mentioned, color changers are common in paint shops because, as is well known, they allow rapid changeover from one color to another during the paint shop. But they have the principal disadvantage of unavoidable loss of color when flushing the more or less large central channel at each color change. After optimizing the color losses in, for example, hoses, metering devices, etc., the color changer often represents the element of the coating unit with the greatest single loss. The larger the cross section of the central channel, the greater the color change loss, the greater the amount of color through the color changer in a shorter time To be able to guide, as it may be desired for various reasons (special color supplies, container technology, higher paint quantities, shorter cycle times of successive workpieces, higher viscosities, etc.). In addition, the color change losses increase with the number of connected colors and the resulting length of the central channel, so that the number of hues often has to be limited undesirable.
Um die Farbwechselverluste in den üblichen Farbwechslern zu vermeiden, wurden nach dem Andock-Prinzip arbeitende Farbwechselsysteme entwickelt, bei denen die für die verschiedenen Farbtöne vorgesehenen Farbleitungen mit mechanisch bewegbaren Ventilelementen an eine zu dem Zerstäuber führende Leitung ankuppelbar sind (
Eine relativ gute Lösung des Problems der Reduzierung von Farbverlusten bei einem Farbwechsel wird durch den in der
Nach dem Ausgang von Farbwechslern ist üblicherweise ein Farbdruckregler angeordnet, der für eine Vordruckregelung einer Dosierpumpe sorgen oder, wie oben schon erwähnt wurde, als Stellglied zur Farbmengenregelung dienen kann. Der Totraum dieses Farbdruckreglers muss bei jedem Farbwechsel gespült werden.After the exit of color changers usually a color pressure regulator is arranged, which provide for a form control of a metering pump or, as already mentioned above, can serve as an actuator for color quantity control. The dead space of this color pressure regulator must be rinsed with every color change.
Ausgehend von dem geschilderten Stand der Technik wie beispielsweise der
Diese Aufgabe wird durch die Merkmale der Patentansprüche gelöst.This object is solved by the features of the claims.
Beispielsweise in der Automobilindustrie beschränken sich derzeit bis zu 70 oder 80 % des Produktionsvolumens auf etwa 7 Farbtöne oder weniger. Durch den direkten Anschluss dieser häufig benötigten Farben an die automatisch gesteuerte Dosiervorrichtung werden aber erfindungsgemäß die Farbwechselverluste an Lack und Spülmittel bei dem entsprechend häufigen Wechsel dieser High-Runner-Farben und zugleich die notwendigen Farbwechselzeiten über die oben beschriebenen Vorteile der ICC-Technik hinaus auf ein Minimum reduziert, ohne dass dadurch die Gesamtzahl wählbarer Farbtöne einschließlich zahlreicher seltener benötigter oder Low-Runner-Farben, bei denen Farbwechselverluste wegen der seltener durchgeführten Farbwechsel weniger gravierend sind, begrenzt werden muss. Wenn für die High-Runner-Farben, also für die am häufigsten benötigten Farben oder, gleichbedeutend, für die Farben mit dem größten Produktionsvolumen kein typischer Farbwechsler mit einem bei jedem Farbwechsel zu spülenden gemeinsamen Zentralkanal verwendet wird, entfallen auch dessen typische Farbwechselverluste an Material und Zeit. Zudem werden auch die Farbwechselverluste eines gesonderten typischen Farbwechslers für weniger häufig benötigte Farben herabgesetzt, weil dessen Länge durch Wegfall der am häufigsten benötigten Farben entsprechend verkürzt wird, falls nicht statt dessen eine entsprechend größere Anzahl wählbarer Farben angeschlossen werden soll.For example, in the automotive industry currently limited to about 70 or 80% of the production volume to about 7 shades or less. However, due to the direct connection of these frequently required colors to the automatically controlled metering device, according to the invention, the color change losses of paint and detergent in the correspondingly frequent change of these high-runner colors and at the same time the necessary color change times over the advantages of the ICC technology described above on one Minimum, without limiting the total number of selectable hues, including many less-needed or low-runner colors where color change losses are less serious because of the less-frequent color changes. If no typical color changer with a common central channel to be flushed with each color change is used for the high-runner colors, ie for the most frequently required colors or, equally, for the colors with the largest production volume, its typical color change losses of material and Time. In addition, the color change losses of a separate typical color changer for less frequently required colors are reduced because its length is shortened by eliminating the most commonly needed colors accordingly, if instead a correspondingly larger number of selectable colors should be connected.
Am Geringsten sind die Farbwechselverluste der High-Runner-Farben, wenn sowohl die Dosiervorrichtung als auch die für diese Farben erforderlichen Farbleitungen im Zerstäuber untergebracht werden.The least is the color-change loss of the high-runner colors when both the dosing device and the color lines required for these colors are placed in the nebulizer.
Bei direktem Anschluss aller Farbleitungen an je einen Eingang der Dosiervorrichtung muss bei einem Farbwechsel nur noch der den Farben gemeinsame kurze Weg von der Dosiervorrichtung zu dem Applikationsorgan wie z. B. dem Glockenteller eines Rotationszerstäubers gespült werden. Vorzugsweise sind hierbei die zugehörigen, durch externe Signale zur Farbwahl gesteuerten Farbventile unmittelbar an die Dosiervorrichtung angebaut oder in diese eingebaut, doch könnten die Farbventile auch in der an sich bekannten Weise (
Im Rahmen der Erfindung ist es ferner möglich, nur die Dosiervorrichtung im Zerstäuber selbst anzuordnen, die Farbventile für die High-Runner-Farben dagegen nur in dessen Nähe an den Zerstäuber anzubauen, vorzugsweise zwischen dem Zerstäuber und dem Handgelenk des den Zerstäuber bewegenden Lackierroboters oder sonstigen programmgesteuerten Bewegungsautomaten. In diesem Fall verläuft nur eine den Farben gemeinsame Ausgangsleitung der Farbventile von diesen in die Dosiervorrichtung im Zerstäuber, wobei die Farbventile auch in diesem Fall einen typischen Farbwechsler bilden können. Ferner besteht im Rahmen der Erfindung die Möglichkeit, nicht nur die Farbventile, sondern auch die Dosiervorrichtung außerhalb des Zerstäubers an diesen anzubauen, vorzugsweise zwischen dem Handgelenk und dem Zerstäuber, da auch in diesem Fall die Farbwechselverluste noch relativ gering sind.In the context of the invention, it is also possible to arrange only the metering device in the atomizer itself, the color valves for the high-runner colors, however, grow only in the vicinity of the atomizer, preferably between the atomizer and the wrist of the atomizer moving paint robot or other program-controlled automatic movement machines. In this case, only one of the colors common output line of the paint valves of these runs in the metering device in the atomizer, the color valves can form a typical color changer in this case as well. Furthermore, it is within the scope of the invention, the possibility not only the paint valves, but also the metering outside of the atomizer to grow on these, preferably between the wrist and the atomizer, since even in this case the color change losses are still relatively low.
In anderen Fällen kann es dagegen zweckmäßiger sein, die Dosiervorrichtung und/oder die Farbventile, ggf. in einem üblichen Farbwechsler, zwar ebenfalls in der Nähe des Zerstäubers, aber etwas weiter entfernt von ihm anzuordnen, beispielsweise in oder an einem Arm eines den Zerstäuber bewegenden Beschichtungsroboters oder sonstigen programmgesteuerten Bewegungsautomaten. Insbesondere kann es zweckmäßig sein, gemäß der erwähnten
Der für ggf. viele, aber seltener benötigte Farbtöne vorgesehene Farbwechsler wird dagegen stets gesondert und weiter entfernt von dem Zerstäuber angeordnet, vorzugsweise in oder an einem Arm des Beschichtungsroboters oder dergleichen. Die Verluste bei einem Wechsel der Farben sind umso geringer, je näher der Farbwechsler dem Zerstäuber ist, doch kann er bei einer größeren Anzahl von Farben wegen seines Platzbedarfs und aus dynamischen und sonstigen praktischen Gründen in der Regel nicht in oder an dem Zerstäuber vor dem Handgelenk des Lackierroboters od. dgl. angeordnet werden, wie es in vielen Fällen für die High-Runner-Farbventile möglich ist, sondern allenfalls in oder an dem das Handgelenk tragenden vorderen Roboterarm, wenn nicht zu viele Farben angeschlossen werden. Im Rahmen der Erfindung könnte dieser Farbwechsler aber auch weiter von dem Zerstäuber entfernt sein, also im zweiten Roboterarm oder mitfahrend (auf der sog. Achse 7) oder sogar außerhalb des Lackierroboters. Farbverluste bei einem Farbwechsel lassen sich beispielsweise in diesem Fall, aber auch für die hier beschriebene High-Runner-Farbversorgung, durch dem Fachmann an sich bekannte zusätzliche Maßnahmen wie insbesondere die Molchtechnik in Verbindung mit Zurückdrücken der in der Leitung verbliebenen Farben bis in das Versorgungssystem ("Reflow") und/oder nahezu restlosen Verbrauch der jeweils in der Leitung befindlichen Farbe beim Applizieren ("Pushout") vermeiden.On the other hand, the color changer provided for possibly many but less frequently required shades is always arranged separately and further away from the atomizer, preferably in or on one arm of the coating robot or the like. The closer the color changer is to the nebulizer, the less the change in color is, but for a larger number of colors, because of its space requirements and for dynamic and other practical reasons, it usually can not be in or on the nebulizer before the wrist the paint robot od. Like. Are arranged, as is possible in many cases for the high-runner color valves, but possibly in or on the wrist-carrying front robot arm, if not too many colors are connected. In the context of the invention, however, this color changer could also be further away from the atomizer, ie in the second robot arm or moving along (on the so-called axis 7) or even outside the painting robot. Color losses in a color change can be, for example, in this case, but also for the high-runner ink supply described by those skilled in the per se known additional measures such as in particular the pig technology in conjunction with pushing back the remaining in the line colors to the supply system ("Reflow") and / or almost complete consumption of each color in the line when applying ("pushout") avoid.
Der Ausgang des gesonderten Farbwechslers für seltener benötigte Farben ist vorzugsweise parallel zu den Farbleitungen der am häufigsten benötigten High-Runner-Farben an einen eigenen zusätzlichen Eingang der Dosiervorrichtung oder ggf. ihres Speicherbehälters angeschlossen. Stattdessen kann der Ausgang dieses Farbwechslers aber auch über eine parallel zu der Dosiervorrichtung der High-Runner-Farben verlaufende Leitung und eine eigene Dosiervorrichtung, die sich in dem Zerstäuber oder in weitgehend beliebiger Entfernung außerhalb des Zerstäubers befinden kann, direkt an den Zerstäuber angeschlossen sein, d. h. in der Regel an dessen Hauptnadelventil.The output of the separate color changer for less frequently required colors is preferably connected in parallel to the color lines of the most frequently required high-runner colors to its own additional input of the metering device or possibly its storage container. Instead, the output of this color changer can also be connected directly to the atomizer via a line running parallel to the metering device of the high-runner colors and its own metering device, which can be located in the atomizer or in a largely arbitrary distance outside the atomizer. d. H. usually at the main needle valve.
Vorzugsweise ist parallel zu dem gesonderten Farbwechsler für weniger häufig benötigte Farbtöne ein damit übereinstimmender weiterer Farbwechsler vorgesehen, der an Farbleitungen für dieselben Farbtöne angeschlossen ist. Damit lassen sich unerwünschte Zeitverluste beim Farbwechsel vermeiden, weil während des Spülens des einen Farbwechslers und seiner Ausgangsleitung und während der Vorbereitung für die nächste Farbe (ggf. einschließlich Reflow) der Zerstäuber aus dem jeweils anderen Farbwechsler versorgt werden kann. Diese wechselweise Farbversorgung bezeichnet man üblicherweise als A/B-Betrieb (vgl. z.B.
Der oder (bei A/B-Betrieb) jeder Farbwechsler für seltener als die z. B. 7 oder weniger High-Runner-Farben benötigten Farben kann zweckmäßig mindestens zwei Leitungsabschnitte enthalten, in die jeweils mehrere gesteuerte Farbventile für Beschichtungsmaterialien mit wählbaren unterschiedlichen Farbtönen münden, und von denen mindestens ein Leitungsabschnitt unabhängig von mindestens einem anderen Leitungsabschnitt spülbar ist, wobei die Leitungsabschnitte durch ein gesteuert absperrbares Ventil miteinander und/oder mit einer Ausgangsleitung des Farbwechslers verbunden sind. Derartige Farbwechsler sind an sich aus der
Wenn zwei voneinander getrennte parallele Dosiervorrichtungen in dem Zerstäuber oder in dessen Nähe vorgesehen sind, können diese Dosiervorrichtungen auch gleichzeitig arbeiten, um dem Applikationsorgan zwei aus getrennten Versorgungsleitungen kommende Komponenten eines Beschichtungsmaterials wie namentlich 2K-Lacke zuführen.If two separate parallel metering devices are provided in the atomizer or in its vicinity, these metering devices can also work simultaneously to supply the application organ with two components of a coating material, such as 2K lacquers, coming from separate supply lines.
Gemäß einem besonderen bevorzugten Aspekt der Erfindung, der in manchen Fällen auch ohne das oben beschriebene Merkmal eines entfernt von dem Zerstäuber angeordneten Farbwechslers für seltener benötigte Farben zweckmäßig und vorteilhaft sein kann, hat die vorzugsweise in dem Zerstäuber oder in dessen Nähe ein- oder angebaute Dosiervorrichtung einen Kolbendosierer mit einem zur Änderung der Kolbengeschwindigkeit während der Applikation automatisch steuerbaren Dosierantrieb, wofür eine der hierfür aus dem Stand der Technik an sich bekannten Konstruktionen verwendet werden kann. Der erfindungsgemäße Kolbendosierer oder ggf. sein vorgeschalteter Speicherbehälter hat aber im Gegensatz zu den bekannten Konstruktionen nicht nur einen oder allenfalls (wie im Fall der erwähnten
U. a. zur Reduzierung der Farbwechselverluste sowie aus Platz- und Konstruktionsgründen ist es besonders zweckmäßig, wenn die durch Signale zur Farbwahl gesteuerten Farbventile der High-Runner-Farbleitungen an die Dosiervorrichtung angebaut oder konstruktiv in diese integriert sind. Im Fall eines Kolbendosierers oder eines ihm vorgeschalteten Kolbenzylinders (worunter ein Behälter mit beliebigem, auch nicht kreisförmigem Querschnitt zu verstehen ist) kann also mindestens der auf der einen Seite des Kolbens befindliche Raum des Kolbenzylinders eine Mehrzahl von Eingängen für die Farbleitungen verschiedenfarbiger Beschichtungsmaterialien haben, wobei die Eingänge vorzugsweise in den Zylinder eingebaute oder an den Zylinder angebaute Ventile aufweisen, die von Signalen zur Auswahl der dem Kolbendosierer zuführbaren Beschichtungsmaterialien steuerbar sind. Ein derartiger Kolbendosierer kann mit oder ohne vorgeschalteten Speicherbehälter auch für sich und unabhängig von der hier im Übrigen beschriebenen Beschichtungseinrichtung zweckmäßig und vorteilhaft sein, also auch in beliebigen sonstigen Farbversorgungssystemen einschließlich Systemen, in denen sich der Kolbendosierer nicht in dem Zerstäuber oder in dessen Nähe befindet. Entsprechendes gilt für den oben erwähnten doppelt wirkenden Kolbendosierer gemäß der
Gemäß einem anderen Aspekt der Erfindung, der ebenfalls für sich und auch ohne die die Anordnung von Farbwechslern in oder mehr oder weniger weit weg von dem Zerstäuber betreffenden Merkmal zweckmäßig und vorteilhaft sein kann, können die Farbwechselventile in eine Zahnraddosierpumpe an sich üblichen Typs eingebaut sein oder an die Dosierpumpe angebaut sein.According to another aspect of the invention, which may also be convenient and advantageous on its own and without the feature of arranging color changers in or more or less far from the atomizer, the color-change valves may be incorporated into a gear metering pump of conventional type be attached to the metering pump.
Gemäß einem weiteren Aspekt der Erfindung, der ebenfalls für sich und auch ohne andere der beschriebenen Merkmale zweckmäßig und vorteilhaft sein kann, können statt der oben beschriebenen Beispiele die Farbventile auch in oder an einen Behälter einer Beschichtungsvorrichtung wie z.B. eines Beschichtungsroboters ein- oder angebaut sein, der nicht zum Dosieren dient, sondern in an sich bekannter Weise anderen Zwecken wie beispielsweise als Zwischen- oder Vorratsbehälter.According to a further aspect of the invention, which may also be convenient and advantageous by itself and without other of the described features, the paint valves may also be placed in or on a container of a coating apparatus such as e.g. a coating robot on or be grown, which does not serve for dosing, but in a conventional manner other purposes such as as an intermediate or reservoir.
Die Anzahl der an oder in eine Dosiervorrichtung oder einen Behälter einer Beschichtungseinrichtung ein- oder angebauten Farbventile für entsprechend viele Farbeingänge hängt vom jeweiligen Einzelfall ab, beträgt in der Regel aber mehr als zwei und vorzugsweise mehr als vier.The number of on or in a metering device or a container of a coating device built or attached color valves for a corresponding number of color inputs depends on the particular case, but is usually more than two and preferably more than four.
Ausführungsbeispiele der Erfindung werden anhand der Zeichnung erläutert. Es zeigen jeweils schematisch und in vereinfachter Darstellung:
- Fig. 1
- ein vereinfachtes Prinzipschema einer erfindungsgemäßen Beschichtungseinrichtung;
- Fig. 2
- einen erfindungsgemäßen Kolbendosierer;
- Fig. 3
- drei verschiedene Farbwechsler, die bei einer erfindungsgemäßen Beschichtungseinrichtung verwendet werden können;
- Fig. 4
- ein gegenüber
Fig. 2 abgewandeltes Ausführungsbeispiel; - Fig. 5
- ein Ausführungsbeispiel mit einer Zahnraddosierpumpe;
- Fig. 6
- eine zweckmäßige bauliche Realisierung der Dosiervorrichtung gemäß
Fig. 2 ; - Fig. 7
- einen Radialschnitt durch die Endwand der Vorrichtung gemäß
Fig. 6 ; - Fig. 8
- eine zweckmäßige bauliche Realisierung der Dosiervorrichtung gemäß
Fig. 4 ; - Fig. 9
- die Anordnung einer Dosiervorrichtung beispielsweise mit einem Behälter gemäß
Fig. 6 im Vorderarm eines Lackierroboters; - Fig. 10
- eine zweckmäßige bauliche Realisierung der Dosiervorrichtung und ihrer Ventile gemäß
Fig. 5 ; - Fig. 11
- den Einbau von Farbventilen in den Umfang eines beliebigen Zwecken dienenden Behälters einer Beschichtungseinrichtung;
- Fig. 12
- eine Abwandlung des Ausführungsbeispiels nach
Fig. 11 ; - Fig. 13
- eine schematische Schnittansicht des Ausführungsbeispiels nach
Fig. 12 ; und - Fig. 14
- eine weitere Abwandlung der Ausführungsbeispiele nach
Fig. 11 und 12 .
- Fig. 1
- a simplified schematic diagram of a coating device according to the invention;
- Fig. 2
- a piston dispenser according to the invention;
- Fig. 3
- three different color changers that can be used in a coating device according to the invention;
- Fig. 4
- one opposite
Fig. 2 modified embodiment; - Fig. 5
- an embodiment with a gear metering pump;
- Fig. 6
- an expedient structural realization of the metering according to
Fig. 2 ; - Fig. 7
- a radial section through the end wall of the device according to
Fig. 6 ; - Fig. 8
- an expedient structural realization of the metering according to
Fig. 4 ; - Fig. 9
- the arrangement of a metering device, for example, with a container according to
Fig. 6 in the forearm of a painting robot; - Fig. 10
- an appropriate structural realization of the metering device and its valves according to
Fig. 5 ; - Fig. 11
- the installation of paint valves in the scope of any purpose container of a coating device;
- Fig. 12
- a modification of the embodiment according to
Fig. 11 ; - Fig. 13
- a schematic sectional view of the embodiment according to
Fig. 12 ; and - Fig. 14
- a further modification of the embodiments according to
Fig. 11 and12 ,
Die in
Bei dem dargestellten Beispiel sind an die Farbventile FV2 bis FV6 der Dosiervorrichtung 10 die Farbleitungen 13 für die im Beschichtungsbetrieb am häufigsten benötigten oder High-Runner-Farben (mit 2 bis 6 bezeichnet) angeschlossen, die beispielsweise als Stichleitungen von den in Beschichtungsanlagen üblichen Ringleitungen gespeist werden oder auch selbst als Ringleitung ausgebildet sein können. Eines der Farbventile, hier FV1, ist dagegen über eine Farbleitung 15 an den Ausgang eines externen Farbwechslers 12 angeschlossen und dient zur Abtrennung des High-Runner-Farbwechselbereichs von dem Low-Runner-Farbwechsler 12. Der Farbwechsler 12 kann die eingangs erläuterte konventionelle modulare Blockbauweise mit einem Zentralkanal haben, an den über die Farbventile des Farbwechslers die Farbleitungen 14 für weniger häufig benötigte oder Low-Runner-Farben angeschlossen sind. Bevorzugte Ausführungsformen des Farbwechslers 12 werden unten anhand von
Wie schon erläutert wurde, können sich die Dosiervorrichtung 10 und/oder die Farbventile FV1 bis FV6 vorzugsweise in dem Zerstäuber oder mit ihm bewegbar in dessen Nähe insbesondere zwischen dem Zerstäuber und dem Handgelenk eines Lackierroboters oder in dessen Vorderarm befinden. Wie ebenfalls schon erwähnt wurde, sind die Farbventile vorzugsweise an die Dosiervorrichtung 10 (Kolbendosierer, Speicherbehälter, Dosierpumpe oder ggf. die Messzelle oder den Farbdruckregler an sich bekannter Dosiersysteme usw.) angebaut oder in diese eingebaut. Der externe Farbwechsler 12 kann sich dagegen an einem Ort befinden, der zwar in Hinblick auf Farbwechselverluste dem Zerstäuber möglichst nahe sein soll, im Übrigen aber weitgehend beliebig ist. Aus dynamischen und Platzgründen kann beispielsweise ein Ort am oder im hinteren Roboterarm zweckmäßig sein, wenn sich eine Anordnung weiter vorne nicht realisieren lässt.As already explained, the
Wenn die Dosiervorrichtung durch einen Kolbendosierer oder eine volumetrisch arbeitende Dosierpumpe z.B. mit einem elektrischen Antriebsmotor gebildet ist, kann sich der Dosierantrieb außerhalb der Dosierpumpe befinden (beispielsweise wie nach
Die erfindungsgemäße Farbversorgung eignet sich für beliebige Zerstäuber, insbesondere auch für elektrostatische Zerstäuber, die das Beschichtungsmaterial bekanntlich auf ein Hochspannungspotenzial beispielsweise in der Größenordnung von 100 kV aufladen. In diesem Fall können in dem Zerstäuber befindliche Sensoren und Aktoren einschließlich der Dosiervorrichtung und ihres elektrischen Dosierantriebs im Betrieb auf dem Hochspannungspotenzial des Zerstäubers liegen, ebenso wie ggf. ein anstelle der sonst üblichen Druckluftturbine vorgesehener elektrischer Antriebsmotor des Glockentellers, wenn es sich um einen Rotationszerstäuber handelt. Wie im Einzelnen in den Patentanmeldungen
Wie ebenfalls in den genannten Patentanmeldungen
Gemäß einem besonderen Merkmal, das auch unabhängig von der hier beschriebenen High-Runner-Farbversorgung vorteilhaft und realisierbar ist, kann die Betätigung des üblichen Hauptnadelventils oder eines sonstigen Ausgangs- oder Hauptventils des Zerstäubers durch den am Ausgang (11) der dem Hauptventil vorgeschalteten Dosiervorrichtung erzeugten Druck gesteuert werden. Das Hauptventil wird also durch den Druck der Dosiervorrichtung geöffnet, sobald und solange ein entsprechender Druck vorhanden ist, und bei fehlendem Druck selbsttätig geschlossen. Das Funktionsprinzip entspricht hierbei dem eines in Beschichtungsanlagen üblichen Farbdruckreglers, wie er z.B. aus DÜRR/BEHR Technisches Handbuch, Einführung in die Technik der PKW-Lackierung, 04/1999 - 28.04.1999, Kap. 5.3.1 Farbdruckregler, oder aus
In
Erfindungsgemäß hat der Kolbendosierer 20 jedoch mehrere, bei dem dargestellten Beispiel fünf Farbeingänge E1 bis E5, die jeweils ein Farbventil FV1' bis FV5' aufweisen und damit an je eine von fünf Farbleitungen 13' für unterschiedliche High-Runner-Farben angeschlossen sind. Ein zusätzlicher, ebenfalls mit einem Ventil VV versehener Eingang E6 ist zum Einleiten eines als Spülmittel dienenden Verdünners V und von ebenfalls zur Reinigung es Zylinders 21 dienender Pulsluft PL vorgesehen. Ferner hat der Zylinder 21 einen Ausgang A mit einem Ausgangsventil VA, an das eine zu dem Hauptnadel- oder Ausgangsventil des Zerstäubers führende Ausgangsleitung des Kolbendosierers angeschlossen ist.According to the invention, however, the
Die Farbventile FV sind vorzugsweise an den Zylinderboden 24 des Kolbendosierers angebaut oder in diesen eingebaut, wie durch die gestrichelte Linie 24' angedeutet ist. Dementsprechend können auch das Spülventil VV und/oder das Ausgangsventil FA an- oder eingebaut sein.The paint valves FV are preferably mounted on or built into the
Wenn der Kolbendosierer 20 der
Im Rahmen der Erfindung kann es sich bei dem Element 20 in
Bei Weiterbildung des Kolbendosierers 20 für wechselweisen Betrieb der durch den Kolben 23 getrennten Zylinderbereiche gemäß
Der bei den bevorzugten Ausführungsformen der Erfindung vorgesehene externe Farbwechsler 12 (
Da die an den externen Farbwechsler angeschlossenen Farben ihrerseits unterschiedlich oft benötigt werden, kann es allerdings zweckmäßiger sein, den externen Farbwechsler in der aus der
Der in
Wenn an die beiden Kanalabschnitte 30c1 und 30c2 die gleichen Farben angeschlossen werden, eignet sich der Farbwechsler auch für A/B-Betrieb. Damit lässt sich eine stets gleich kurze Farbwechselzeit für alle wählbaren Farben erreichen.If the same colors are connected to the two channel sections 30c1 and 30c2, the color changer is also suitable for A / B operation. This makes it possible to achieve a consistently short color change time for all selectable colors.
Bei dem Ausführungsbeispiel nach
In
In
Wie in
Statt der in
In der Regel sollen die High-Runner-Farbventile bei den beschriebenen Ausführungsbeispielen der Erfindung möglichst klein sein, damit möglichst viele Ventile in dem zur Verfügung stehenden begrenzten Bauraum untergebracht werden können. Entsprechendes gilt für ein ein- oder angebautes Ventil für den Anschluss von Low-Runner-Farben (z.B. Ventil FV1 in
Die in
Wie schon erwähnt wurde, kann der oben im Zusammenhang mit Dosiervorrichtungen beschriebene Ein- oder Anbau von Farbventilen unabhängig hiervon allgemeiner für beliebige sonstige Behälter von Beschichtungseinrichtungen sinnvoll und vorteilhaft sein. In
Bei diesem Ausführungsbeispiel der Erfindung muss kein gesonderter Farbwechsler gemäß
Es sind auch Beschichtungssysteme denkbar, bei denen die Farbeingänge des beispielsweise auf einem Beschichtungsroboter angeordneten Behälters 110 in an sich bekannter Weise mit Schnellkuppelventilen an entsprechende stationäre Farbanschlüsse einer Lackierkabine angedockt werden.Coating systems are also conceivable in which the color inputs of the
Das Ausführungsbeispiel nach
Wenn man zwei oder mehr Gruppen von ringartig um den Behälterumfang verteilten Farbventilen gegeneinander längs der Behälterachse versetzt oder beabstandet, wie in
Zur automatischen Steuerung der Farbventile der beschriebenen Ausführungsbeispiele der Erfindung können an die Ventile in an sich bekannter Weise beispielsweise elektrische oder pneumatische Signalleitungen angeschlossen sein, die in den Zeichnungen nicht dargestellt sind.For automatic control of the paint valves of the described embodiments of the invention may be connected to the valves in a conventional manner, for example, electrical or pneumatic signal lines, which are not shown in the drawings.
Generell ist die Kombination jedes der in dieser Anmeldung beschriebenen Merkmale mit einem oder mehreren anderen beschriebenen Merkmalen ohne Beschränkung auf sonstige Merkmale möglich und je nach Realisierungsfall vorteilhaft.In general, the combination of each of the features described in this application with one or more other features described without limitation to other features is possible and advantageous depending on the implementation.
Claims (17)
mit mehreren durch Signale zur Auswahl der Beschichtungsmaterialien aus Farbleitungen (13, 13') steuerbaren Farbventilen (FV), die an oder in die Dosiervorrichtung (10, 20) oder einen Speicherbehälter (90) der Dosiervorrichtung angebaut oder eingebaut sind,
wobei die Dosiervorrichtung (10, 20, 50)
with a plurality of color valves (FV) which can be controlled by signals for selecting the coating materials from ink ducts (13, 13 '), which are mounted on or in the metering device (10, 20) or a storage container (90) of the metering device,
the dosing device (10, 20, 50)
dadurch gekennzeichnet, dass die Dosiervorrichtung (10, 20) und/oder die gesteuerten Farbventile (FV) der ersten Gruppe von Farbleitungen (13, 13') in dem Zerstäuber angeordnet oder mit dem Zerstäuber bewegbar fest an diesen angebaut sind; und/oder
dadurch gekennzeichnet, dass die Dosiervorrichtung (10, 20, 90) und/oder die gesteuerten Farbventile (FV) der ersten Gruppe zwischen dem Zerstäuber und einem Handgelenk oder in einem bewegbaren Arm (91) eines den Zerstäuber bewegenden Beschichtungsroboters oder sonstigen programmgesteuerten Bewegungsautomaten angeordnet sind; und/oder
dadurch gekennzeichnet, dass der Farbwechsler (12, 92) der zweiten Gruppe in oder an einem Arm (91) eines den Zerstäuber bewegenden Beschichtungsroboters oder sonstigen programmgesteuerten Bewegungsautomaten angeordnet ist; und/oder dadurch gekennzeichnet, dass der Farbwechsler (12b, 12c) der zweiten Gruppe mindestens zwei Leitungsabschnitte (30b1, 30b2; 30c1, 30c2) enthält, in die jeweils mehrere gesteuerte Farbventile für Beschichtungsmaterialien mit wählbaren unterschiedlichen Farbtönen münden, und von denen mindestens ein Leitungsabschnitt unabhängig von mindestens einem anderen Leitungsabschnitt spülbar ist, wobei die Leitungsabschnitte durch ein gesteuert absperrbares Ventil (16b; 16c1, 16c2) miteinander und/oder mit einer Ausgangsleitung des Farbwechslers (12b, 12c) verbunden sind; und/oder
dadurch gekennzeichnet, dass die durch Signale zur Farbwahl gesteuerten Farbventile (FV) der Farbleitungen der ersten Gruppe an oder in die Dosiervorrichtung (10, 20) oder einen Speicherbehälter (90) der Dosiervorrichtung angebaut oder eingebaut sind; und/oder
dadurch gekennzeichnet, dass ein elektrischer Antriebsmotor der Dosiervorrichtung (10, 20) in dem Zerstäuber angeordnet oder fest an diesen angebaut ist; und/oder
mit einem elektrostatischen Zerstäuber, dadurch gekennzeichnet, dass die Dosiervorrichtung (10, 20) und/oder ein elektrischer Dosierantrieb im Betrieb auf dem Hochspannungspotenzial des Zerstäubers liegen, wobei der Dosierantrieb potenzialgetrennt von einem in dem Zerstäuber oder in dessen Nähe angeordneten Trenntransformator gespeist wird, der eine Hochspannungs-Isolationsstrecke enthält; und/oder dadurch gekennzeichnet, dass in dem Zerstäuber oder in dessen Nähe zwei voneinander getrennte parallele und abwechselnd, wahlweise oder gleichzeitig arbeitende Dosiervorrichtungen (10, 20) vorgesehen sind; und/oder
dadurch gekennzeichnet, dass für A/B-Betrieb parallel zu der Anordnung aus der Dosiervorrichtung (10, 20) und den gesteuerten Farbventilen (FV) der häufig benötigten Farbtöne eine damit übereinstimmende weitere Anordnung aus einer Dosiervorrichtung und gesteuerten Farbventilen und/oder parallel zu dem Farbwechsler (12) der zweiten Gruppe ein damit übereinstimmender weiterer Farbwechsler vorgesehen sind, wobei die Farbventile der beiden Anordnungen bzw. die beiden Farbwechsler jeweils an Farbleitungen für dieselben Farbtöne angeschlossen sind; und/oder
dadurch gekennzeichnet, dass die Dosiervorrichtung (10) ein von einem Motor angetriebener Kolbendosierer (20) mit einem Zylinder (21) ist oder einen solchen Dosierer enthält, dessen durch den Kolben (23) getrennte Bereiche jeweils mehrere gesteuerte Eingänge (E1-E5) für Beschichtungsmaterial mit wählbaren unterschiedlichen Farbtönen und jeweils einen mit dem Ausgangsventil des Zerstäubers verbundenen gesteuerten Ausgang (A) haben, wobei vorzugsweise die Eingänge (E1-E5) des einen Bereichs sich an oder in dem einen Stirnende (24) des Zylinders (21) und die Eingänge des anderen Bereichs sich an oder in dem entgegengesetzten Stirnende des Zylinders (21) befinden.Coating device according to one of claims 10-12, characterized in that the color lines (13) of the first group via a controllable color choice color valve (FV) to the metering device (10, 20) extend or to a leading into the metering common line are connected; and or
characterized in that the metering device (10, 20) and / or the controlled color valves (FV) of the first group of color lines (13, 13 ') are arranged in the atomizer or are movably fixed to the atomizer with the atomizer; and or
characterized in that the metering device (10, 20, 90) and / or the controlled color valves (FV) of the first group between the atomizer and a wrist or in a movable arm (91) of the atomizer moving coating robot or other programmable motion machines are arranged ; and or
characterized in that the color changer (12, 92) of the second group is arranged in or on an arm (91) of a coating robot or other program-controlled automatic movement moving the atomizer; and / or characterized in that the color changer (12b, 12c) of the second group contains at least two line sections (30b1, 30b2; 30c1, 30c2), into each of which open several controlled color valves for coating materials with selectable different hues, and of which at least one Line section is irrigated independently of at least one other line section, wherein the line sections by a controlled shut-off valve (16b; 16c1, 16c2) with each other and / or with an output line of the color changer (12b, 12c) are connected; and or
characterized in that the color valves (FV) of the color lines of the first group , which are controlled by signals for color selection, are mounted on or in the metering device (10, 20) or a storage container (90) of the metering device; and or
characterized in that an electric drive motor of the metering device (10, 20) is arranged in the atomizer or fixedly attached thereto; and or
with an electrostatic atomizer, characterized in that the metering device (10, 20) and / or an electrical metering drive are in operation at the high voltage potential of the atomizer, wherein the metering electrically isolated from one in the atomizer or in the Near arranged arranged isolation transformer, which contains a high-voltage insulation path; and / or characterized in that in the atomizer or in its vicinity two separate parallel and alternately, optionally or simultaneously working metering devices (10, 20) are provided; and or
characterized in that for A / B operation parallel to the arrangement of the metering device (10, 20) and the controlled color valves (FV) of the frequently required shades a matching further arrangement of a metering device and controlled color valves and / or parallel to the Color changer (12) of the second group are provided with a matching further color changer, wherein the color valves of the two arrangements or the two color changer are each connected to color lines for the same color tones; and or
characterized in that the metering device (10) is a piston driven by a motor piston dispenser (20) with a cylinder (21) or contains such a meter whose separated by the piston (23) areas each having a plurality of controlled inputs (E1-E5) Coating material with selectable different shades and each having a connected to the output valve of the atomizer controlled output (A), wherein preferably the inputs (E1-E5) of the one area at or in the one front end (24) of the cylinder (21) and the Entrances of the other area are located at or in the opposite front end of the cylinder (21).
und vorzugsweise dadurch gekennzeichnet, dass die Eingänge (E1-E5) in den Zylinder (21) eingebaute oder an den Zylinder (21) angebaute Ventile (FV) aufweisen, die von Signalen zur Auswahl der der Dosiervorrichtung (20) zuführbaren Beschichtungsmaterialen steuerbar sind.Device having a cylinder (21, 60) and a piston displaceable therein, in particular according to claim 14, characterized in that at least the space of the cylinder (21) located on one side of the piston (23) has a plurality of inputs (E1-E5) has, to each of which a color line (13 ') of a group of provided for different colored coating materials color lines is connected or connectable,
and preferably characterized in that the inputs (E1-E5) in the cylinder (21) built or attached to the cylinder (21) valves (FV), which are controllable by signals for selecting the metering device (20) feedable coating materials.
oder vorzugsweise dadurch gekennzeichnet, dass die Ventile (FV83) radial in den Umfang eines Wandelements (89) des Kolbenzylinders eingesetzt sind und die Enden (88) ihrer Ventilnadeln bei geschlossenem Ventil annähernd bündig an einen axialen Zentralkanal (85) angrenzen,
wobei vorzugsweise Anschlüsse (77, 84, 97) für durch die Ventile (FV) gesteuerte Leitungen radial in den Umfang der Endwand (69, 76) oder des Wandelements (89) eingesetzt sind.Device according to one of claims 14 or 15, characterized in that the valves (FV) are formed by automatically controlled needle valve units (FV63, FV83) and preferably characterized in that the needles (73) of the valves (FV63) are parallel to the longitudinal axis of the piston cylinder or the container pass through an end wall (76) of the piston cylinder (60) or container and their ends (78) at least approximately aligned with the inside (71) of the end wall (76) when the valve is closed,
or preferably characterized in that the valves (FV83) are inserted radially in the periphery of a wall element (89) of the piston cylinder and the ends (88) of their valve pins approximately flush with an axial central channel (85) when the valve is closed,
preferably, ports (77, 84, 97) for conduits controlled by the valves (FV) are inserted radially into the periphery of the end wall (69, 76) or the wall member (89).
mit einem Hauptventil für das Beschichtungsmaterial, das durch Federkraft in der Schließstellung gehalten und durch den entgegen der Federkraft wirkenden Druck eines Steuermediums an einem Steuereingang geöffnet wird,
dadurch gekennzeichnet, dass der Steuereingang des Hauptventils durch den Druck des Beschichtungsmaterials beaufschlagt wird,
und vorzugsweise dadurch gekennzeichnet, dass das Hauptventil durch eine von dem Druck des Beschichtungsmaterials beaufschlagte Membran geöffnet wird,
und/oder vorzugsweise dadurch gekennzeichnet, dass der Steuereingang des Hauptventils an den Ausgang einer Dosiervorrichtung für das Beschichtungsmaterial angeschlossen ist.Application device for coating material, in particular atomizer, for a coating device, in particular according to one of claims 10 to 13,
with a main valve for the coating material, which is held in the closed position by spring force and opened by the pressure of a control medium acting counter to the spring force at a control input,
characterized in that the control input of the main valve is acted upon by the pressure of the coating material,
and preferably characterized in that the main valve is opened by a membrane acted upon by the pressure of the coating material,
and / or preferably characterized in that the control input of the main valve is connected to the output of a metering device for the coating material.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006058562A DE102006058562A1 (en) | 2006-12-12 | 2006-12-12 | Coating device for serially coating workpieces with different shades comprises a separate color changer containing color valves to which are connected color lines for the coating material |
DE102007029195A DE102007029195A1 (en) | 2007-06-25 | 2007-06-25 | Coating device for serially coating workpieces with different shades comprises a separate color changer containing color valves to which are connected color lines for the coating material |
PCT/EP2007/009658 WO2008071273A2 (en) | 2006-12-12 | 2007-11-07 | Coating apparatus comprising a metering device |
EP07819668.0A EP2101925B1 (en) | 2006-12-12 | 2007-11-07 | Coating apparatus comprising a metering device |
Related Parent Applications (2)
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EP07819668.0A Division EP2101925B1 (en) | 2006-12-12 | 2007-11-07 | Coating apparatus comprising a metering device |
EP07819668.0A Division-Into EP2101925B1 (en) | 2006-12-12 | 2007-11-07 | Coating apparatus comprising a metering device |
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EP2853312A2 true EP2853312A2 (en) | 2015-04-01 |
EP2853312A3 EP2853312A3 (en) | 2015-10-14 |
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EP14003987.6A Active EP2853312B1 (en) | 2006-12-12 | 2007-11-07 | ICC metering |
EP07819668.0A Active EP2101925B1 (en) | 2006-12-12 | 2007-11-07 | Coating apparatus comprising a metering device |
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- 2007-11-07 MX MX2009006196A patent/MX2009006196A/en active IP Right Grant
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Also Published As
Publication number | Publication date |
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WO2008071273A3 (en) | 2008-10-16 |
BRPI0719725A2 (en) | 2014-12-09 |
US8333164B2 (en) | 2012-12-18 |
US20100012025A1 (en) | 2010-01-21 |
JP2010512241A (en) | 2010-04-22 |
JP5595734B2 (en) | 2014-09-24 |
ES2534328T3 (en) | 2015-04-21 |
WO2008071273A2 (en) | 2008-06-19 |
EP2853312A3 (en) | 2015-10-14 |
MX2009006196A (en) | 2009-07-09 |
PL2101925T3 (en) | 2015-06-30 |
EP2101925B1 (en) | 2015-01-07 |
RU2427432C2 (en) | 2011-08-27 |
EP2853312B1 (en) | 2020-01-01 |
RU2009126573A (en) | 2011-01-20 |
ES2776187T3 (en) | 2020-07-29 |
EP2101925A2 (en) | 2009-09-23 |
BRPI0719725B1 (en) | 2020-04-14 |
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