EP2745943B1 - Metering device for the metered dispensing of flowable media - Google Patents

Metering device for the metered dispensing of flowable media Download PDF

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Publication number
EP2745943B1
EP2745943B1 EP12008470.2A EP12008470A EP2745943B1 EP 2745943 B1 EP2745943 B1 EP 2745943B1 EP 12008470 A EP12008470 A EP 12008470A EP 2745943 B1 EP2745943 B1 EP 2745943B1
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EP
European Patent Office
Prior art keywords
cooling
metering device
outlet channel
outlet
cooling element
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EP12008470.2A
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German (de)
French (fr)
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EP2745943A1 (en
Inventor
Alexander Essing
Martin Baumann
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Collomix Ruehr und Mischgeraete GmbH
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Collomix Ruehr und Mischgeraete GmbH
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Application filed by Collomix Ruehr und Mischgeraete GmbH filed Critical Collomix Ruehr und Mischgeraete GmbH
Priority to NO12008470A priority Critical patent/NO2745943T3/no
Priority to EP12008470.2A priority patent/EP2745943B1/en
Publication of EP2745943A1 publication Critical patent/EP2745943A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins

Definitions

  • the invention relates to a metering device for metered delivery of flowable media according to the preamble of claim 1 and a method for actuating such a metering device according to the preamble of claim 17.
  • Generic dosing usually find in the output of colors in so-called Farbdispensern use.
  • a large number of different shades is reproducibly composed of a much smaller number of primary colors (color pigment preparations).
  • Such color dispensers are well known in the art and regularly comprise a housing in which various containing the color pigment preparations container are housed. These containers are connected via fluid-conducting connections with a pump device, which in turn is fluidically connected to a metering device.
  • the metering device is specifically controlled by means of a computer unit in which different color combinations are stored.
  • the output of the medium is carried out regularly via a dosing of the metering device, which usually has a plurality of dispensing nozzles for metering in a, a base color, for example, a white color containing container.
  • the document US 2010/0300181 A1 discloses a metering device according to the preamble of claim 1 and a method for actuating a metering device according to the preamble of claim 17.
  • a metering device for the metered dispensing of flowable media, by means of the clogging of outlet channels or outlet nozzles can be reliably prevented by drying fluid or paint residues and reliably prevents the formation and multiplication of microorganisms can be.
  • Another object of the invention is to propose a method for actuating such a metering device, by means of which the above objects can also be achieved in a simple and reliable manner.
  • the metering device is associated with a cooling device, by means of a, remaining in the outlet channel of the output device Residue of the flowable medium can be cooled to a predetermined and / or defined temperature. Preference is given in this case to a construction in which the cooling device is arranged and / or designed such that the residue of the flowable medium remaining in the outlet channel is cooled to approximately the dew point temperature of the respective ambient air. As the experiments on the part of the inventor have shown, with such a cooling, the drying out of the residues in the outlet channels of the dispensers can be significantly delayed or possibly even completely prevented, so that with more or less regularly operated and operated dispensers an undesirable clogging and clogging of the outlet channels and so that the output devices can be reliably avoided.
  • the cooling causes the microorganisms no nutrient medium is made available, which favor their formation or propagation.
  • a permanent and reliable operation of a dosing device is ensured in a simple and reliable manner, with such a cooling device can also be produced with relatively little component complexity and thus overall cost, as the following statements will show.
  • the term residue is to be understood here in a broad sense and includes in particular all embodiments in which the complete supply line including outlet channel with the respective flowable medium, in particular a pasty color pigment preparation, is filled.
  • the cooling device comprises a control and / or regulating device, at least one measuring device for detecting a reference temperature, for example the ambient temperature, and at least one measuring device for detecting a reference moisture, For example, the humidity of the ambient air.
  • a control and / or regulating device for detecting a reference temperature
  • at least one measuring device for detecting a reference moisture For example, the humidity of the ambient air.
  • the cooling device is arranged and / or formed such that at least one subregion of the at least one dispensing device, for example at least one defined subregion of an outlet channel of the at least one dispenser, can be cooled to a defined temperature.
  • the cooling device comprises a cooling element which forms at least one subregion of the at least one dispensing device, in particular at least one subregion of an outlet channel of the at least one dispensing device.
  • such a cooling element is in a cooling contact with at least one subregion of the at least one dispensing device.
  • the cooling element is formed from a thermally conductive material.
  • a cooling element is preferably at least in some areas plate-shaped, formed for example by a cooling plate.
  • a cooling element that is formed by a cooling plate of a thermally conductive material is particularly preferred and easy to manufacture.
  • a thermally conductive material is, for example, aluminum or copper.
  • the cooling element preferably has a number of cooling element recesses corresponding to the number of output devices, that is to say at least one cooling element recess, wherein the at least one cooling element recess forms at least a partial region of the outlet channel.
  • the dosing device can form a dosing head with a plurality of dispensing devices, each fluidically connectable to a container containing a flowable medium to be dispensed. Such a construction is compact and allows a clean and reliable dosing of different flowable media.
  • the cooling element can be coupled with a connection element, for example with a connection plate, in such a way that the at least one cooling element recess of the cooling element and a channel region formed in the connection element together form one or the outlet channel.
  • a connection element for example with a connection plate
  • the at least one cooling element recess of the cooling element and a channel region formed in the connection element together form one or the outlet channel.
  • an edge-free and / or continuous transition between thedeelementausEnglishung and the connection element side channel region is given to form a total smooth-walled outlet channel, so that it can not come to unwanted exhaust-side turbulence and turbulence in the medium.
  • a fluid line which is indirectly or directly coupled to the container is connected to the connection element, for example to the channel region attached and held there by means of a holding and / or clamping device in position.
  • connection element is formed by a, preferably made of a thermally insulating material, connection plate which bears against the, preferably at least partially plate-shaped, cooling element in an at least partially planar contact connection and a plurality of, from the terminal plate projecting channel regions, which each have adeelementaus originallyung is assigned and / or to each of which a directly or indirectly coupled to the container fluid line can be connected.
  • the outlet opening of the outlet channel is preferably designed as an outlet nozzle.
  • the outlet channel has an outlet opening side, preferably made of an elastomeric material, nozzle cap having a, an outlet nozzle defining and / or forming recess as an outlet opening whose diameter or size is preferably smaller than that Diameter or the size of the outlet channel in the area of the outlet opening.
  • a recess nozzle cap made of a preferably rubber-elastic material allows a targeted nozzle formation and output of the media by expanding according to the upcoming pressure or opens.
  • the nozzle cap can also favor pinch-off of individual droplets, so that work is essentially drip-free.
  • a nozzle cap is preferably formed by an elastomer layer, in particular by a silicone layer, which rests against the cooling element, preferably formed by a cooling plate, in particular there at least partially rests flat and / or is arranged on the opposite side of the connecting element of the cooling element.
  • Such an elastomer layer can be easily produced and adhered or fixed, for example, to the desired mating surface.
  • the elastomer layer which preferably defines a plurality of outlet nozzles, can be held on the cooling element by means of a separate holding device, preferably a holding plate, which has one opening associated with the at least one outlet layer on the elastomer layer side and larger in diameter.
  • this larger diameter opening is formed such that an edge region defining the at least one outlet nozzle can be displaced at least partially into the opening region when the fluid is dispensed.
  • the cooling device comprises at least one refrigeration device.
  • the cooling device may comprise at least one Peltier element, or is formed by such, wherein the cooling device with the element to be cooled, in particular with a cooling element described above is in a heat-dissipating cooling contact to ensure that the element to be cooled in the desired manner heat can be withdrawn.
  • a refrigeration device formed, for example, by a Peltier element is simple and inexpensive to produce and also reliable in the application.
  • the cooling element is more preferably in the areas where it is in no cooling contact with the refrigeration device and / or with the residue and / or with the output device, thermally insulated, whereby an efficient cooling is ensured.
  • a hot side of the refrigeration device which is formed in particular by a Peltier element, is coupled in an advantageous manner with a heat sink heat sink, which also forms part of the metering device or a dosing.
  • a heat sink heat sink can be dissipated in a simple and rapid manner, the heat generated during the cooling, wherein it is preferably provided that the heat sink has cooling fins for this purpose or the heat sink is alternatively or additionally acted upon by a cooling air flow generated by at least one fan. Further, it is also conceivable that the heat sink is formed by a housing of the metering device.
  • Each of the existing dispensing devices is preferably connected in each case to a fluid line leading to a container containing the flowable medium, wherein each of these containers is preferably assigned a pumping device by means of which the respective medium can be pumped to the dispensing head with a defined pressure.
  • Fig. 1 is a schematic and exemplary embodiment of a here below Farbdispenser 45 designated dosing and mixing device shown for example colors, which has a metering device 43 which is housed in a housing 34 of the Farbdispensers 45.
  • the housing 34 serves as a carrier for the individual components of the Farbdispensers 45 and encloses them.
  • embodiments are also conceivable in which at least individual parts are not surrounded by the housing 34.
  • the housing 34 has here only by way of example a plurality of optionally closable by means of doors 35 openings through which access to the individual components or components of the Farbdispensers 45 is made possible.
  • the housing 34 of the Farbdispensers 45 here are also a variety of only extremely schematically and exemplified containers 3 housed, which are each coupled to a pump device 4 described in more detail below and in which a defined color pigment preparation is added.
  • the metering device 43 together with a dosing head 1 described in more detail below is arranged on the housing 34 or in the color dispenser 45, that the dosing head 1 is above a mixing vessel 30, in which the individual color pigment preparations are metered upon actuation of the Farbdispensers 45 become.
  • the container or mixing vessel 30 shown here merely by way of example can be placed on a dispensing space floor 39, which can be adjusted in height by means of a height adjustment device 48, around the mouth opening of the container or mixing vessel 30 at the desired distance from the dispensing devices of the dispensing head, not shown here 1 to arrange.
  • hoses or fluid lines 13 are connected to the containers 3, in the region of the pumping devices 4, via which the respective color pigment preparations from the containers 3 are removable and transportable in the direction of dosing 1.
  • the arrangement of the pumping devices 4 directly to the containers 3 is chosen here only by way of example. It is also conceivable to arrange these pumping devices 4 spaced from the containers, for example directly or indirectly to the housing 34.
  • the control of the container 3 and thus the pumping devices 4 preferably takes place via a control computer 29, in which different color combinations are stored.
  • a display 40 of the Control computer 29 is according to Fig. 1 arranged outside of the housing 34, for example, but may also be integrated into the housing wall itself.
  • a dispenser-side control computer 29 may also be an external control by an external computer, possibly also via a network.
  • the component of the dosing device 43 forming dosing 1 is, as described above, supplied via the fluid lines 13 with a specific color pigment preparation, for each of these fluid lines 13 and thus for each color pigment preparation on the dosing 1 own output device 2 is provided.
  • the dosing head 1 has a cooling device 5 which has a cooling element formed here by way of example by a cooling plate 6.
  • This flat cooling plate 6 is formed of a highly thermally conductive material, for example of aluminum or copper, to name just a few examples.
  • the cooling plate 6 has a plurality ofdeelementaus traditions 9a, which together with formed in a connection plate 10 channel regions 24 each form an outlet channel 8.
  • an edge-free and / or continuous transition between the cooling element recess 9a and the connection element-side channel region 24 is provided.
  • connection plate 10 is preferably at least partially formed of a heat-insulating material, for example of a plastic material, and is located on the cooling plate 6 in the region of the outlet channels 8 in a planar contact connection.
  • One of the fluid lines 13 is connected to the channel regions 24 projecting from the connection plate 10.
  • the channel regions 24 and / or the fluid lines 13 are preferably formed in this connection region so that their ends 25 in the in Fig. 2 widened outwardly open state shown, whereby a simple support and support of the fluid lines 13 to the channel regions 24 by means of a holding plate 23 shown here only as an example hose clamp is possible, the fluid lines 13 in the in the Fig. 2 shown mounted state on the dosing head 1 against unwanted removal secures.
  • This holding plate 23 may be made of a heat-insulating material, for example a plastic material.
  • the determination of the holding plate 23 on the dosing head 1 can be done in a conventional manner, for example by means of a non-positive and / or positive and / or material connection. Specifically, it is provided here by way of example to connect the holding plate 23 by means of screw 23a with the connection plate 10.
  • the connection plate 10 is in turn connected by means of a plurality of screw connections 10a to a carrier plate 42 forming a mounting part of the housing 34.
  • an elastomer or silicone layer 12 is arranged, which covers the outlet channels 8 and in the region of the outlet channels 8, for example, a hole-like or slot-like recess as an outlet opening, thus an outlet nozzle 14 is formed.
  • the diameter of these recesses or outlet nozzles 14 is preferably smaller than the diameter of the outlet channels 8.
  • This elastomer or silicone layer 12 is provided by means of a further holding plate 11 which adjoins an edge-side support region 11a supported on the cooling plate 6 from below, held between just this holding plate 11 and the cooling plate 6, wherein the holding plate 11 in the region of the outlet nozzles 14 and in the region of the outlet channels 8 has a relatively large opening 15 which is larger in diameter than the associated outlet nozzles 14 in the elastomer or silicone layer 12 and preferably also larger than the diameter of the outlet channels 8.
  • the holding plate 11 may for example also be formed of a non-heat-conducting or heat-insulating material.
  • the holding plate 11 is exemplified here from below, that is from an output side 31 ago (opposite the feed side 32) secured with a retaining ring 33 which rests in the region of the housing-side support plate 42 edge and surrounds an edge region of the support plate 11 and for example can be fixed by means of a bayonet lock.
  • the locking ring 33 may be formed of a heat-insulating material, for example, a plastic material.
  • the housing-side support plate 42 further has a central mounting opening, in which the cooling plate 6 rests with associated connection plate 10 and associated elastomer or silicone layer 12 substantially contour-matched.
  • the cooling plate 6 In the region of this mounting hole is the cooling plate 6, as is known from the Fig. 2 can be seen, by means of the terminal plate 10 and on the opposite side by means of the elastomer or silicone layer 12 together with associated retaining plate 11 and retaining ring 33 such after Shielded or isolated outside to the environment that except in the area of the openings 15 and the outlet nozzles 14 no heat or cold bridges exist to the environment, which ensures that the outlet channels 8 and the medium therein in an optimal way with can be cooled to a defined temperature at a high efficiency.
  • at least one additional heat-insulating insulating element 22 may also be provided in order to provide reliable thermal insulation for the cooling plate 6.
  • the cooling plate 6 is further provided with a coupling region 9, which is formed here as a cranked and following the angled or cranking horizontally extending, plate-shaped cooling plate portion.
  • This coupling region 9 forms a cooling contact surface 6a, which is heat-dissipating connected to, for example, a Peltier element 16 as a cooling device, but otherwise shielded or insulated from the environment by means of a heat-insulating material 22.
  • the Peltier element 16 is with its heat-dissipating hot side with a heat sink 17 in thermally conductive connection, such that upon actuation and actuation of the Peltier element 16 heat from the contact surface 6a flows to the contact surface 7, whereby the cooling plate 6 and thus ultimately in the outlet channels. 8 standing medium, as exemplified in connection with the in the image plane of the Fig. 2 left outlet channel 8 is shown, heat is removed (arrows 37 in Fig. 2 ). This heat is released via cooling fins 19 of the heat sink 17 into the environment. This ensures in a simple manner that the residues in the outlet channels 8 are cooled to a desired, predetermined or defined temperature. For example, this temperature is approximately the dew point temperature.
  • Residues are set a balance between evaporation and condensation, whereby the residues located in the region of the outlet channels 8 are always kept moist and it can come to no drying out of these residues, so that the blockage of the outlet channels 8 and the outlet nozzles 14 of the output devices 2 reliably can be avoided.
  • it can be ensured by means of such targeted cooling that no microorganisms can form or multiply.
  • the heat sink 17 may also be associated with a fan 20, which can act on the heat sink 17 with a cooling air flow, whereby the heat dissipation via the heat sink 17 can be further increased.
  • the control of the Peltier element 16 for setting a defined desired temperature is preferably carried out by means of a control computer 29 integrated control and / or regulating device, in dependence on a detected by at least one measuring device ambient temperature and in dependence on a detected by at least one measuring device Humidity of the ambient air.

Description

Die Erfindung betrifft eine Dosiervorrichtung zur dosierten Abgabe von fließfähigen Medien nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zum Betätigen einer derartigen Dosiervorrichtung nach dem Oberbegriff des Anspruchs 17.
Gattungsgemäße Dosiervorrichtungen finden meist bei der Ausgabe von Farben in sogenannten Farbdispensern Verwendung. Hier wird eine große Zahl verschiedener Farbtöne reproduzierbar aus einer wesentlich kleineren Zahl an Grundfarben (Farbpigmentpräparationen) zusammengestellt. Derartige Farbdispenser sind aus der Praxis allgemein bekannt und umfassen regelmäßig ein Gehäuse, in dem verschiedene, die Farbpigmentpräparationen enthaltende Behälter untergebracht sind. Diese Behälter sind über fluidleitende Verbindungen mit einer Pumpvorrichtung verbunden, die wiederum mit einer Dosiervorrichtung strömungstechnisch verbunden ist. Mittels eines derartigen Farbdispensers können somit vorgegebene Farbtöne reproduzierbar zusammengemischt werden, wobei die Dosiervorrichtung konkret mittels einer Rechnereinheit angesteuert wird, in der verschiedene Farbzusammenstellungen gespeichert sind. Die Ausgabe des Mediums erfolgt regelmäßig über einen Dosierkopf der Dosiervorrichtung, der meist mehrere Ausgabedüsen zur Zudosierung in ein, eine Basisfarbe, zum Beispiel eine weiße Farbe, enthaltendes Behältnis aufweist.The invention relates to a metering device for metered delivery of flowable media according to the preamble of claim 1 and a method for actuating such a metering device according to the preamble of claim 17.
Generic dosing usually find in the output of colors in so-called Farbdispensern use. Here, a large number of different shades is reproducibly composed of a much smaller number of primary colors (color pigment preparations). Such color dispensers are well known in the art and regularly comprise a housing in which various containing the color pigment preparations container are housed. These containers are connected via fluid-conducting connections with a pump device, which in turn is fluidically connected to a metering device. By means of such a Farbdispensers thus predetermined shades can be reproducibly mixed together, the metering device is specifically controlled by means of a computer unit in which different color combinations are stored. The output of the medium is carried out regularly via a dosing of the metering device, which usually has a plurality of dispensing nozzles for metering in a, a base color, for example, a white color containing container.

Bei derartigen Dosierköpfen besteht jedoch regelmäßig das Problem, dass die im Bereich der zu den Auslassdüsen führenden Auslasskanäle zurückbleibenden Farbrückstände, insbesondere bei einem längeren Stillstand des Farbdispensers, austrocknen können, was zu einem Verstopfen der Auslassdüsen bzw. der Auslasskanäle bis hin zu deren Unbrauchbarkeit führen kann.In the case of dosing heads of this type, however, there is regularly the problem that the paint residues remaining in the region of the outlet channels leading to the outlet nozzles, in particular during a longer standstill of the paint dispenser, can dry out, which can lead to clogging of the outlet nozzles or the outlet channels up to their uselessness ,

Um dem Problem des Austrocknens zu begegnen, wurden bereits verschiedene Vorschläge gemacht. Die EP 2 218 948 A2 sieht ebenso wie die WO 2007/011 830 A2 vor, die Ausgabedüsen nach der Farbabgabe so zu verschließen, dass die in den Auslasskanälen verbleibenden Rückstände mehr oder weniger luftdicht abgeschlossen sind. Ein derartiger Aufbau ist jedoch steuerungstechnisch und bauteiltechnisch relativ aufwändig und zudem auch störanfällig, weil hier im Bereich der Auslassdüsen zusätzliche bewegliche Teile vorhanden sind, die bei einer entsprechenden Verunreinigung mit Farbrückständen und dem entsprechenden Austrocknen dieser Farbrückstände dann selbst die Auslassdüsen verstopfen können.To address the problem of dehydration, various proposals have already been made. The EP 2 218 948 A2 looks just like that WO 2007/011 830 A2 to close the output nozzles after the ink delivery so that the remaining residues in the outlet channels are more or less airtight. However, such a structure is relatively expensive in terms of control and component technology and also prone to failure, because additional moving parts are present here in the area of the outlet nozzles, which can then clog the outlet nozzles even if there is a corresponding contamination with paint residues and corresponding drying out of these paint residues.

Um dem Problem der Austrocknung zu begegnen, ist es weiter aus der WO 2008/109514 A1 bekannt, das Austrocknen durch Befeuchten mit Wasserdampf zu verhindern. Hierzu wird Dampf durch einen Ultraschalldampferzeuger erzeugt und bis zu den Auslassdüsen geleitet, um sicherzustellen, dass diese fortlaufend benetzt werden und die dort vorhandenen Farbrückstände nicht oder nur langsam austrocknen. Der Einsatz von Dampf ist relativ aufwändig und führt zudem zu dem Problem, dass die Feuchtigkeit die Vermehrung von Mikroorganismen fördert, die zur Verunreinigung des gesamten Strömungsweges und damit auch zur Zerstörung der Farbpigmentpräparationen führen kann. Der fortwährende Kontakt mit Dampf führt zudem auch zu einer erhöhten Korrosion von im Bereich des Farbdispensers vorhandenen korrosiven Metallteilen. Zudem ist hier stets ein Wasservorrat vorzuhalten und führt der Einsatz von Wasser zu einer unerwünschten Tropfenbildung bzw. Kontamination der Farbpigmentpräparationen.To tackle the problem of dehydration, it is further out of the WO 2008/109514 A1 known to prevent dehydration by moistening with water vapor. For this purpose, steam is generated by an ultrasonic steam generator and passed up to the outlet nozzles to ensure that they are continuously wetted and dry out the existing paint residues or only slowly. The use of steam is relatively complex and also leads to the problem that the moisture promotes the proliferation of microorganisms, which can lead to contamination of the entire flow path and thus the destruction of the color pigment preparations. The continuous contact with steam also leads to increased corrosion of the Area of the paint dispenser existing corrosive metal parts. In addition, a water supply should always be provided and the use of water leads to undesirable droplet formation or contamination of the color pigment preparations.

Das Dokument US 2010/0300181 A1 offenbart eine Dosiervorrichtung gemäß dem Oberbegriff des Anspruchs 1 und ein Verfahren zum Betätigen einer Dosiervorrichtung gemäß dem Oberbegriff des Anspruchs 17.The document US 2010/0300181 A1 discloses a metering device according to the preamble of claim 1 and a method for actuating a metering device according to the preamble of claim 17.

Demgegenüber ist es Aufgabe der vorliegenden Erfindung, eine Dosiervorrichtung zur dosierten Abgabe von fließfähigen Medien zu schaffen, mittels der das Zusetzen von Auslasskanälen bzw. Auslassdüsen durch austrocknende Fluid- bzw. Farbrückstände zuverlässig vermieden werden kann und mit der die Bildung und Vermehrung von Mikroorganismen zuverlässig verhindert werden kann. Eine weitere Aufgabe der Erfindung ist es, ein Verfahren zum Betätigen einer derartigen Dosiervorrichtung vorzuschlagen, mittels dem die obigen Ziele ebenfalls auf einfache und funktionssichere Weise erreicht werden können.
Diese Aufgaben werden gelöst durch die Merkmale der unabhängigen Patentansprüche. Vorteilhafte Ausgestaltungen hierzu sind Gegenstand der jeweils darauf rückbezogenen Unteransprüche. Patentanspruch 1 offenbart eine erfindungsgemäße Dosiervorrichtung. Der Dosiervorrichtung ist eine Kühleinrichtung zugeordnet, mittels der ein, in dem Auslasskanal der Ausgabeeinrichtung verbleibender Rückstand des fließfähigen Mediums auf eine vorgegebene und/oder definierte Temperatur abkühlbar ist. Bevorzugt ist hierbei weiter ein Aufbau, bei dem die Kühleinrichtung so angeordnet und/oder ausgebildet ist, dass der in dem Auslasskanal verbleibende Rückstand des fließfähigen Mediums in etwa auf die Taupunkttemperatur der jeweiligen Umgebungsluft abgekühlt wird.
Wie die erfinderseitigen Versuche gezeigt haben, kann mit einer derartigen Abkühlung das Austrocknen der Rückstände in den Auslasskanälen der Ausgabeeinrichtungen wesentlich verzögert bzw. gegebenenfalls sogar vollständig verhindert werden, so dass bei mehr oder weniger regelmäßig betriebenen und betätigten Dosiervorrichtungen ein unerwünschtes Zusetzen und Verstopfen der Auslasskanäle und damit der Ausgabeeinrichtungen zuverlässig vermieden werden kann. Des Weiteren bewirkt die Abkühlung, dass den Mikroorganismen kein Nährboden zur Verfügung gestellt wird, die deren Bildung bzw. Vermehrung begünstigen. Mit einer derartigen erfindungsgemäßen Lösung ist somit ein dauerhafter und funktionssicherer Betrieb einer Dosiervorrichtung auf einfache und funktionssichere Weise sichergestellt, wobei eine derartige Kühleinrichtung zudem mit relativ geringem Bauteilaufwand und damit insgesamt kostengünstig hergestellt werden kann, wie die nachfolgenden Ausführungen noch zeigen werden. Die Begrifflichkeit Rückstand ist hier in einem weiten Sinne zu verstehen und umfasst insbesondere auch alle Ausführungen, bei denen die komplette Zuleitung inklusive Auslasskanal mit dem jeweiligen fließfähigen Medium, insbesondere einer pastösen Farbpigmentpräparation, befüllt ist.In contrast, it is an object of the present invention to provide a metering device for the metered dispensing of flowable media, by means of the clogging of outlet channels or outlet nozzles can be reliably prevented by drying fluid or paint residues and reliably prevents the formation and multiplication of microorganisms can be. Another object of the invention is to propose a method for actuating such a metering device, by means of which the above objects can also be achieved in a simple and reliable manner.
These objects are achieved by the features of the independent claims. Advantageous embodiments for this purpose are the subject of each dependent back claims. Claim 1 discloses a metering device according to the invention. The metering device is associated with a cooling device, by means of a, remaining in the outlet channel of the output device Residue of the flowable medium can be cooled to a predetermined and / or defined temperature. Preference is given in this case to a construction in which the cooling device is arranged and / or designed such that the residue of the flowable medium remaining in the outlet channel is cooled to approximately the dew point temperature of the respective ambient air.
As the experiments on the part of the inventor have shown, with such a cooling, the drying out of the residues in the outlet channels of the dispensers can be significantly delayed or possibly even completely prevented, so that with more or less regularly operated and operated dispensers an undesirable clogging and clogging of the outlet channels and so that the output devices can be reliably avoided. Furthermore, the cooling causes the microorganisms no nutrient medium is made available, which favor their formation or propagation. With such a solution according to the invention thus a permanent and reliable operation of a dosing device is ensured in a simple and reliable manner, with such a cooling device can also be produced with relatively little component complexity and thus overall cost, as the following statements will show. The term residue is to be understood here in a broad sense and includes in particular all embodiments in which the complete supply line including outlet channel with the respective flowable medium, in particular a pasty color pigment preparation, is filled.

Für eine funktionssichere und zuverlässige Abkühlung weist die Kühleinrichtung erfindungsgemäß eine Steuer- und/oder Regeleinrichtung, wenigstens eine Messeinrichtung zur Erfassung einer Referenztemperatur, beispielsweise der Umgebungstemperatur, und wenigstens eine Messeinrichtung zur Erfassung einer Referenzfeuchte, beispielsweise der Luftfeuchtigkeit der Umgebungsluft auf. Diese sind so angeordnet und/oder ausgebildet, dass der in dem Auslasskanal verbleibende Rückstand des fließfähigen Mediums auf eine vorgegebene Soll-Temperatur, beispielsweise in etwa auf die Taupunkttemperatur der jeweiligen Umgebungsluft, abgekühlt wird. Damit kann auf einfache Weise sichergestellt werden, dass im Bereich der Ausgabeeinrichtungen stets die gewünschte Abkühlung erfolgt, wodurch die Austrocknung von eventuell auslassseitig vorhandenen Rückständen zuverlässig vermieden werden kann.For a functionally reliable and reliable cooling, the cooling device according to the invention comprises a control and / or regulating device, at least one measuring device for detecting a reference temperature, for example the ambient temperature, and at least one measuring device for detecting a reference moisture, For example, the humidity of the ambient air. These are arranged and / or configured such that the residue of the flowable medium remaining in the outlet channel is cooled to a predetermined desired temperature, for example approximately to the dew point temperature of the respective ambient air. In this way, it can be ensured in a simple manner that the desired cooling always takes place in the area of the dispensing devices, as a result of which the dehydration of residues possibly present on the outlet side can be reliably prevented.

Gemäß der Erfindung ist die Kühleinrichtung so angeordnet und/oder ausgebildet, dass mittels dieser wenigstens ein Teilbereich der wenigstens einen Ausgabeeinrichtung, beispielsweise wenigstens ein definierter Teilbereich eines Auslasskanals der wenigstens einen Ausgabeeinrichtung, auf eine definierte Temperatur abkühlbar ist. Mit einem derartigen konkreten Aufbau kann auf einfache Weise sichergestellt werden, dass ein in dem Auslasskanal der Ausgabeeinrichtung verbleibender Rückstand des fließfähigen Mediums auf eine vorgegebene und/oder definierte Temperatur abgekühlt wird.
Gemäß einer besonders bevorzugten und einfach herstellbaren Ausgestaltungsvariante wird vorgeschlagen, dass die Kühleinrichtung ein Kühlelement umfasst, das wenigstens einen Teilbereich der wenigstens einen Ausgabeeinrichtung, insbesondere wenigstens einen Teilbereich eines Auslasskanals der wenigstens einen Ausgabeeinrichtung, ausbildet. Erfindungsgemäß steht ein derartiges Kühlelement mit wenigstens einem Teilbereich der wenigstens einen Ausgabeeinrichtung in einem Kühlkontakt. Erfindungsgemäß ist das Kühlelement aus einem wärmeleitfähigen Material ausgebildet. Ein derartiges Kühlelement ist bevorzugt wenigstens in Teilbereichen plattenförmig ausgebildet, zum Beispiel durch eine Kühlplatte gebildet. Damit kann eine zuverlässige und funktionssichere Abkühlung der wenigstens einen Ausgabeeinrichtung erzielt werden. Besonders bevorzugt und herstellungstechnisch einfach ist in diesem Zusammenhang ein Kühlelement, das durch eine Kühlplatte aus einem wärmeleitfähigen Material gebildet ist. Ein wärmeleitfähiges Material ist zum Beispiel Aluminium oder Kupfer.According to the invention, the cooling device is arranged and / or formed such that at least one subregion of the at least one dispensing device, for example at least one defined subregion of an outlet channel of the at least one dispenser, can be cooled to a defined temperature. With such a concrete construction, it can be ensured in a simple manner that a residue of the flowable medium remaining in the outlet channel of the dispensing device is cooled to a predetermined and / or defined temperature.
According to a particularly preferred and easily manufacturable embodiment variant, it is proposed that the cooling device comprises a cooling element which forms at least one subregion of the at least one dispensing device, in particular at least one subregion of an outlet channel of the at least one dispensing device. According to the invention, such a cooling element is in a cooling contact with at least one subregion of the at least one dispensing device. According to the invention, the cooling element is formed from a thermally conductive material. Such a cooling element is preferably at least in some areas plate-shaped, formed for example by a cooling plate. In order for a reliable and reliable cooling of the at least one output device can be achieved become. In this context, a cooling element that is formed by a cooling plate of a thermally conductive material is particularly preferred and easy to manufacture. A thermally conductive material is, for example, aluminum or copper.

Das Kühlelement weist bevorzugt eine der Anzahl der Ausgabeeinrichtungen entsprechende Anzahl von Kühlelementausnehmungen auf, das heißt wenigstens eine Kühlelementausnehmung, wobei die wenigstens eine Kühlelementausnehmung zumindest einen Teilbereich des Auslasskanals ausbildet. Gemäß einer weiteren besonders bevorzugten Ausgestaltung kann die Dosiervorrichtung einen Dosierkopf mit einer Mehrzahl von Ausgabeeinrichtungen ausbilden, die jeweils mit einem, ein abzugebendes fließfähiges Medium enthaltenden Behälter strömungstechnisch verbindbar sind. Ein derartiger Aufbau ist kompakt herzustellen und ermöglicht eine saubere und funktionssichere Zudosierung unterschiedlichster fließfähiger Medien.The cooling element preferably has a number of cooling element recesses corresponding to the number of output devices, that is to say at least one cooling element recess, wherein the at least one cooling element recess forms at least a partial region of the outlet channel. According to a further particularly preferred embodiment, the dosing device can form a dosing head with a plurality of dispensing devices, each fluidically connectable to a container containing a flowable medium to be dispensed. Such a construction is compact and allows a clean and reliable dosing of different flowable media.

Weiter kann das Kühlelement mit einem Anschlusselement, zum Beispiel mit einer Anschlussplatte, dergestalt gekoppelt sein, dass die wenigstens eine Kühlelementausnehmung des Kühlelementes und ein im Anschlusselement ausgebildeter Kanalbereich zusammen einen bzw. den Auslasskanal ausbilden. Dies ermöglicht eine sehr effektive Abkühlung der Rückstände. Hier ist bevorzugt weiter vorgesehen, dass zur Ausbildung eines insgesamt glattwandigen Auslasskanals ein kantenfreier und/oder stufenloser Übergang zwischen der Kühlelementausnehmung und dem anschlusselementseitigen Kanalbereich gegeben ist, damit es zu keinen unerwünschten auslasskanalseitigen Verwirbelungen und Turbulenzen im Medium kommen kann. Alternativ oder zusätzlich kann zudem vorgesehen sein, dass an das Anschlusselement eine mittelbar oder unmittelbar mit dem Behälter gekoppelte Fluidleitung angeschlossen ist, die zum Beispiel auf den Kanalbereich aufgesteckt und mittels einer Halte- und/oder Klemmeinrichtung dort in Position gehalten wird.Furthermore, the cooling element can be coupled with a connection element, for example with a connection plate, in such a way that the at least one cooling element recess of the cooling element and a channel region formed in the connection element together form one or the outlet channel. This allows a very effective cooling of the residues. Here, it is preferably further provided that an edge-free and / or continuous transition between the Kühlelementausnehmung and the connection element side channel region is given to form a total smooth-walled outlet channel, so that it can not come to unwanted exhaust-side turbulence and turbulence in the medium. Alternatively or additionally, it can also be provided that a fluid line which is indirectly or directly coupled to the container is connected to the connection element, for example to the channel region attached and held there by means of a holding and / or clamping device in position.

Gemäß einer weiteren besonders bevorzugten Ausgestaltung ist vorgesehen, dass das Anschlusselement durch eine, vorzugsweise aus einem wärmeisolierenden Material gebildete, Anschlussplatte gebildet ist, die an dem, vorzugsweise wenigstens bereichsweise plattenförmig ausgebildeten, Kühlelement in einer wenigstens bereichsweise flächigen Anlageverbindung anliegt und eine Mehrzahl von, von der Anschlussplatte abragenden Kanalbereichen aufweist, denen jeweils eine Kühlelementausnehmung zugeordnet ist und/oder an denen jeweils eine mittelbar oder unmittelbar mit dem Behälter gekoppelte Fluidleitung anschließbar ist. Damit wird ein insgesamt einfach herstellbarer und einfach montierbarer Aufbau zur Verfügung gestellt, der sich zudem durch eine kompakte Bauweise auszeichnet.According to a further particularly preferred embodiment, it is provided that the connection element is formed by a, preferably made of a thermally insulating material, connection plate which bears against the, preferably at least partially plate-shaped, cooling element in an at least partially planar contact connection and a plurality of, from the terminal plate projecting channel regions, which each have a Kühlelementausnehmung is assigned and / or to each of which a directly or indirectly coupled to the container fluid line can be connected. This provides a construction which is generally easy to produce and easy to assemble, which is also distinguished by its compact design.

Die Auslassöffnung des Auslasskanals ist bevorzugt als Auslassdüse ausgebildet. Gemäß einer hierzu besonders bevorzugten konkreten Ausgestaltung wird vorgeschlagen, dass der Auslasskanal eine auslassöffnungsseitig angeordnete, vorzugsweise aus einem Elastomermaterial hergestellte, Düsenkappe aufweist, die eine, eine Auslassdüse definierende und/oder ausbildende Aussparung als Auslassöffnung aufweist, deren Durchmesser oder Größe bevorzugt kleiner ist als der Durchmesser oder die Größe des Auslasskanals im Bereich der Auslassöffnung. Eine derartige mit einer Aussparung versehene Düsenkappe aus einem vorzugsweise gummielastischen Material ermöglicht eine gezielte Düsenausbildung und Ausgabe der Medien, indem sie sich entsprechend des anstehenden Drucks ausweitet bzw. öffnet. Gleichzeitig kann die Düsenkappe auch ein Abschnüren von einzelnen Tröpfchen begünstigen, so dass im Wesentlichen tropffrei gearbeitet wird. Des Weiteren kann sich die vorzugsweise gummielastisch ausgebildete Düsenkappe ausdehnen und auch wieder zusammenziehen, so dass diese die Auslassseite des Auslasskanals im Ruhezustand der Dosiervorrichtung relativ gut abdeckt bzw. überdeckt und damit nur relativ wenig Lufteintritt in Richtung Auslasskanal erfolgen kann, was ebenfalls dazu beiträgt, zusammen mit der erfindungsgemäßen Kühlung, das Austrocknen von Rückständen zuverlässig zu vermeiden. Zudem wird hierdurch auch die Ausbildung von kleineren Tröpfchen begünstigt, die mit einer gewünschten hohen Geschwindigkeit ausgestoßen werden.
Eine derartige Düsenkappe wird bevorzugt durch eine Elastomerschicht, insbesondere durch eine Silikonschicht, gebildet, die an dem, bevorzugt durch eine Kühlplatte gebildeten, Kühlelement anliegt, insbesondere dort wenigstens bereichsweise flächig anliegt und/oder auf der dem Anschlusselement gegenüberliegenden Seite des Kühlelementes angeordnet ist. Eine derartige Elastomerschicht lässt sich einfach herstellen und zum Beispiel an der gewünschten Gegenfläche anhaften bzw. festlegen. Beispielsweise kann die, bevorzugt mehrere Auslassdüsen definierende, Elastomerschicht an dem Kühlelement mittels einer separaten Halteeinrichtung, vorzugsweise einer Halteplatte, gehaltert sein, die eine der wenigstens einen elastomerschichtseitigen Auslassdüse zugeordnete und gegenüber dieser durchmessergrößere Öffnung aufweist. In diesem Zusammenhang ist bevorzugt vorgesehen, dass diese durchmessergrößere Öffnung dergestalt ausgebildet ist, dass ein die wenigstens eine Auslassdüse definierender Randbereich bei einer Fluidabgabe wenigstens zum Teil in den Öffnungsbereich hineinverlagerbar ist.The outlet opening of the outlet channel is preferably designed as an outlet nozzle. According to a particularly preferred specific embodiment, it is proposed that the outlet channel has an outlet opening side, preferably made of an elastomeric material, nozzle cap having a, an outlet nozzle defining and / or forming recess as an outlet opening whose diameter or size is preferably smaller than that Diameter or the size of the outlet channel in the area of the outlet opening. Such provided with a recess nozzle cap made of a preferably rubber-elastic material allows a targeted nozzle formation and output of the media by expanding according to the upcoming pressure or opens. At the same time, the nozzle cap can also favor pinch-off of individual droplets, so that work is essentially drip-free. Furthermore, the preferably extend elastically trained nozzle cap and also contract again, so that it relatively well covers or covers the outlet of the outlet channel in the dormant state of the metering and thus relatively little air can enter the outlet channel, which also contributes, together with the cooling according to the invention, reliably avoid the drying out of residues. In addition, this also favors the formation of smaller droplets that are ejected at a desired high speed.
Such a nozzle cap is preferably formed by an elastomer layer, in particular by a silicone layer, which rests against the cooling element, preferably formed by a cooling plate, in particular there at least partially rests flat and / or is arranged on the opposite side of the connecting element of the cooling element. Such an elastomer layer can be easily produced and adhered or fixed, for example, to the desired mating surface. For example, the elastomer layer, which preferably defines a plurality of outlet nozzles, can be held on the cooling element by means of a separate holding device, preferably a holding plate, which has one opening associated with the at least one outlet layer on the elastomer layer side and larger in diameter. In this context, it is preferably provided that this larger diameter opening is formed such that an edge region defining the at least one outlet nozzle can be displaced at least partially into the opening region when the fluid is dispensed.

Die Kühleinrichtung weist erfindungsgemäß wenigstens eine Kälteerzeugungseinrichtung auf. Insbesondere kann die Kühleinrichtung wenigstens ein Peltierelement aufweisen, oder ist durch ein solches gebildet, wobei die Kälteerzeugungseinrichtung mit dem zu kühlenden Element, insbesondere mit einem vorstehend beschriebenen Kühlelement in einem wärmeableitenden Kühlkontakt steht, um sicherzustellen, dass dem zu kühlenden Element in der gewünschten Weise Wärme entzogen werden kann. Zudem ist eine zum Beispiel durch ein Peltierelement gebildete Kälteerzeugungseinrichtung einfach und preiswert herstellbar und zudem betriebssicher in der Anwendung.The cooling device according to the invention comprises at least one refrigeration device. In particular, the cooling device may comprise at least one Peltier element, or is formed by such, wherein the cooling device with the element to be cooled, in particular with a cooling element described above is in a heat-dissipating cooling contact to ensure that the element to be cooled in the desired manner heat can be withdrawn. In addition, a refrigeration device formed, for example, by a Peltier element is simple and inexpensive to produce and also reliable in the application.

Das Kühlelement ist weiter bevorzugt in den Bereichen, in denen es in keinem Kühlkontakt mit der Kälteerzeugungseinrichtung und/oder mit dem Rückstand und/oder mit der Ausgabeeinrichtung steht, wärmeisoliert, wodurch ein effizientes Abkühlen sichergestellt wird.The cooling element is more preferably in the areas where it is in no cooling contact with the refrigeration device and / or with the residue and / or with the output device, thermally insulated, whereby an efficient cooling is ensured.

Eine Warmseite der Kälteerzeugungseinrichtung, die insbesondere durch ein Peltierelement gebildet ist, ist in vorteilhafter Weise mit einem Kühlkörper wärmeübertragend gekoppelt, der ebenfalls Bestandteil der Dosiervorrichtung bzw. eines Dosierkopfes bildet. Mittels eines derartigen Kühlkörpers kann auf einfache und schnelle Weise die im Rahmen der Abkühlung entstehende Wärme abgeführt werden, wobei bevorzugt vorgesehen ist, dass der Kühlkörper hierzu Kühlrippen aufweist bzw. der Kühlkörper alternativ oder zusätzlich mit einem von wenigstens einem Lüfter erzeugten Kühlluftstrom beaufschlagt wird. Weiter ist es auch denkbar, dass der Kühlkörper durch ein Gehäuse der Dosiervorrichtung gebildet ist.A hot side of the refrigeration device, which is formed in particular by a Peltier element, is coupled in an advantageous manner with a heat sink heat sink, which also forms part of the metering device or a dosing. By means of such a heat sink can be dissipated in a simple and rapid manner, the heat generated during the cooling, wherein it is preferably provided that the heat sink has cooling fins for this purpose or the heat sink is alternatively or additionally acted upon by a cooling air flow generated by at least one fan. Further, it is also conceivable that the heat sink is formed by a housing of the metering device.

Jede der vorhandenen Ausgabeeinrichtungen ist bevorzugt jeweils mit einer Fluidleitung verbunden, die zu einem das fließfähige Medium enthaltenden Behälter führt, wobei jedem dieser Behälter bevorzugt eine Pumpvorrichtung zugeordnet ist, mittels der das jeweilige Medium mit einem definierten Druck zum Dosierkopf pumpbar ist. Damit wird eine funktionssichere Beschickung der Ausgabeeinrichtungen mit dem gewünschten Medium bzw. mit der gewünschten Farbpigmentpräparation möglich.Each of the existing dispensing devices is preferably connected in each case to a fluid line leading to a container containing the flowable medium, wherein each of these containers is preferably assigned a pumping device by means of which the respective medium can be pumped to the dispensing head with a defined pressure. Thus, a functionally reliable loading of the output devices with the desired medium or with the desired color pigment preparation is possible.

Mit Anspruch 17 wird weiter ein Verfahren vorgeschlagen. Die sich mit einer derartigen erfindungsgemäßen Verfahrensführung ergebenden Vorteile wurden bereits zuvor in Verbindung mit der erfindungsgemäßen Dosiervorrichtung ausführlich gewürdigt.With claim 17, a method is further proposed. The advantages resulting from such process control according to the invention have already been appreciated in detail previously in connection with the metering device according to the invention.

Die Erfindung wird nachfolgend anhand einer Figurenbeschreibung näher erläutert.The invention will be explained in more detail with reference to a description of the figures.

Es zeigen:

Fig. 1
eine perspektivische Vorderansicht einer lediglich äußerst schematisch und beispielhaften Ausführungsform einer erfindungsgemäßen Dosiervorrichtung,
Fig. 2
einen schematischen Querschnitt durch eine beispielhafte Ausgestaltung eines Dosierkopfes einer erfindungsgemäßen Dosiervorrichtung, und
Fig. 3
schematisch eine perspektivische Draufsicht auf den Dosierkopf gemäß Fig. 2.
Show it:
Fig. 1
1 is a front perspective view of an embodiment of a metering device according to the invention, which is only extremely schematic and exemplary.
Fig. 2
a schematic cross-section through an exemplary embodiment of a dosing of a dosing device according to the invention, and
Fig. 3
schematically a perspective top view of the dosing according to Fig. 2 ,

In Fig. 1 ist eine schematische und beispielhafte Ausführungsform eines hier nachfolgend Farbdispenser 45 bezeichneten Dosier- und Mischgerätes für zum Beispiel Farben gezeigt, die eine Dosiervorrichtung 43 aufweist, die in einem Gehäuse 34 des Farbdispensers 45 untergebracht ist. Das Gehäuse 34 dient als Träger für die einzelnen Bauteile des Farbdispensers 45 und umschließt diese. Es sind allerdings auch Ausführungsformen denkbar, bei denen zumindest einzelne Teile nicht von dem Gehäuse 34 umgeben sind. Das Gehäuse 34 weist hier lediglich beispielhaft eine Mehrzahl von gegebenenfalls mittels Türen 35 verschließbaren Öffnungen auf, über die ein Zugang zu den einzelnen Bauteilen bzw. Bestandteilen des Farbdispensers 45 ermöglicht wird. Im Gehäuse 34 des Farbdispensers 45 sind hier zudem eine Vielzahl von lediglich äußerst schematisch und beispielhaft dargestellten Behältern 3 untergebracht, die jeweils mit einer nachfolgend noch näher beschriebenen Pumpvorrichtung 4 gekoppelt sind und in denen eine definierte Farbpigmentpräparation aufgenommen ist. Wie dies aus der schematischen Darstellung der Fig. 1 gut ersichtlich ist, ist die Dosiervorrichtung 43 mitsamt einem nachfolgend noch näher beschriebenen Dosierkopf 1 so am Gehäuse 34 bzw. im Farbdispenser 45 angeordnet, dass sich der Dosierkopf 1 oberhalb eines Mischgefäßes 30 befindet, in dem bei einer Betätigung des Farbdispensers 45 die einzelnen Farbpigmentpräparationen eindosiert werden. Das hier lediglich beispielhaft dargestellte Gebinde bzw. Mischgefäß 30 kann auf einem Ausgaberaumboden 39 abgestellt werden, der gegebenenfalls mittels einer Höhenverstelleinrichtung 48 in der Höhe verstellbar ist, um die Mündungsöffnung des Gebindes bzw. Mischgefäßes 30 im gewünschten Abstand zu den hier nicht gezeigten Ausgabeeinrichtungen des Dosierkopfs 1 anzuordnen.In Fig. 1 is a schematic and exemplary embodiment of a here below Farbdispenser 45 designated dosing and mixing device shown for example colors, which has a metering device 43 which is housed in a housing 34 of the Farbdispensers 45. The housing 34 serves as a carrier for the individual components of the Farbdispensers 45 and encloses them. However, embodiments are also conceivable in which at least individual parts are not surrounded by the housing 34. The housing 34 has here only by way of example a plurality of optionally closable by means of doors 35 openings through which access to the individual components or components of the Farbdispensers 45 is made possible. In the housing 34 of the Farbdispensers 45 here are also a variety of only extremely schematically and exemplified containers 3 housed, which are each coupled to a pump device 4 described in more detail below and in which a defined color pigment preparation is added. As can be seen from the schematic representation of Fig. 1 can be clearly seen, the metering device 43 together with a dosing head 1 described in more detail below is arranged on the housing 34 or in the color dispenser 45, that the dosing head 1 is above a mixing vessel 30, in which the individual color pigment preparations are metered upon actuation of the Farbdispensers 45 become. The container or mixing vessel 30 shown here merely by way of example can be placed on a dispensing space floor 39, which can be adjusted in height by means of a height adjustment device 48, around the mouth opening of the container or mixing vessel 30 at the desired distance from the dispensing devices of the dispensing head, not shown here 1 to arrange.

Wie dies weiter schematisch aus der Fig. 1 erkennbar ist, sind an den Behältern 3, im Bereich der Pumpvorrichtungen 4 jeweils Schläuche bzw. Fluidleitungen 13 angebunden, über die die jeweiligen Farbpigmentpräparationen aus den Behältern 3 abziehbar und in Richtung Dosierkopf 1 transportierbar sind. Die Anordnung der Pumpvorrichtungen 4 unmittelbar an den Behältern 3 ist hier nur beispielhaft gewählt. Ebenso ist es denkbar, diese Pumpvorrichtungen 4 beabstandet von den Behältern anzuordnen, zum Beispiel direkt oder indirekt am Gehäuse 34 anzubringen.As further schematically from the Fig. 1 can be seen, in each case hoses or fluid lines 13 are connected to the containers 3, in the region of the pumping devices 4, via which the respective color pigment preparations from the containers 3 are removable and transportable in the direction of dosing 1. The arrangement of the pumping devices 4 directly to the containers 3 is chosen here only by way of example. It is also conceivable to arrange these pumping devices 4 spaced from the containers, for example directly or indirectly to the housing 34.

Die Ansteuerung der Behälter 3 und damit der Pumpvorrichtungen 4 erfolgt bevorzugt über einen Steuerungsrechner 29, in dem verschiedene Farb-Zusammenstellungen abgespeichert sind. Ein Display 40 des Steuerungsrechners 29 ist gemäß Fig. 1 beispielhaft außerhalb des Gehäuses 34 angeordnet, kann gegebenenfalls aber auch in die Gehäusewand selbst integriert sein. Anstelle eines dispenserseitigen Steuerungsrechners 29 kann zudem auch eine externe Ansteuerung durch einen externen Rechner erfolgen, gegebenenfalls auch über ein Netzwerk.The control of the container 3 and thus the pumping devices 4 preferably takes place via a control computer 29, in which different color combinations are stored. A display 40 of the Control computer 29 is according to Fig. 1 arranged outside of the housing 34, for example, but may also be integrated into the housing wall itself. Instead of a dispenser-side control computer 29 may also be an external control by an external computer, possibly also via a network.

Der Bestandteil der Dosiervorrichtung 43 bildende Dosierkopf 1 wird, wie vorstehend beschrieben, über die Fluidleitungen 13 mit einer bestimmten Farbpigmentpräparation versorgt, wobei für jede dieser Fluidleitungen 13 und damit für jede Farbpigmentpräparation am Dosierkopf 1 eine eigene Ausgabeeinrichtung 2 vorgesehen ist.The component of the dosing device 43 forming dosing 1 is, as described above, supplied via the fluid lines 13 with a specific color pigment preparation, for each of these fluid lines 13 and thus for each color pigment preparation on the dosing 1 own output device 2 is provided.

Der beispielhafte Aufbau eines derartigen Dosierkopfes 1 wird nachfolgend in Verbindung mit den Fig. 2 und 3 näher erläutert. Der Dosierkopf 1 weist eine Kühleinrichtung 5 auf, die ein hier beispielhaft durch eine Kühlplatte 6 gebildetes Kühlelement aufweist. Diese flächige Kühlplatte 6 ist aus einem stark wärmeleitfähigen Material gebildet, zum Beispiel aus Aluminium oder Kupfer, um nur einige Beispiele zu nennen. Die Kühlplatte 6 weist eine Mehrzahl von Kühlelementausnehmungen 9a auf, die zusammen mit, in einer Anschlussplatte 10 ausgebildeten Kanalbereichen 24 jeweils einen Auslasskanal 8 ausbilden. Zur Ausbildung eines insgesamt glattwandigen Auslasskanals 8 ist ein kantenfreier und/oder stufenloser Übergang zwischen der Kühlelementausnehmung 9a und dem anschlusselementseitigen Kanalbereich 24 vorgesehen.The exemplary structure of such a dosing head 1 will be described below in connection with the Fig. 2 and 3 explained in more detail. The dosing head 1 has a cooling device 5 which has a cooling element formed here by way of example by a cooling plate 6. This flat cooling plate 6 is formed of a highly thermally conductive material, for example of aluminum or copper, to name just a few examples. The cooling plate 6 has a plurality of Kühlelementausnehmungen 9a, which together with formed in a connection plate 10 channel regions 24 each form an outlet channel 8. To form a generally smooth-walled outlet channel 8, an edge-free and / or continuous transition between the cooling element recess 9a and the connection element-side channel region 24 is provided.

Die Anschlussplatte 10 ist bevorzugt wenigstens bereichsweise aus einem wärmeisolierenden Material gebildet, zum Beispiel aus einem Kunststoffmaterial, und liegt an der Kühlplatte 6 im Bereich der Auslasskanäle 8 in einer flächigen Anlageverbindung an.The connection plate 10 is preferably at least partially formed of a heat-insulating material, for example of a plastic material, and is located on the cooling plate 6 in the region of the outlet channels 8 in a planar contact connection.

An die von der Anschlussplatte 10 abragenden Kanalbereiche 24 ist jeweils eine der Fluidleitungen 13 angeschlossen. Die Kanalbereiche 24 und/oder die Fluidleitungen 13 sind in diesem Anschlussbereich bevorzugt so ausgebildet, dass sich deren Enden 25 im in der Fig. 2 gezeigten aufsteckten Zustand nach außen verbreitern, wodurch eine einfache Halterung und Abstützung der Fluidleitungen 13 an den Kanalbereichen 24 mittels einer hier lediglich beispielhaft dargestellten Halteplatte 23 als Schlauchklemmkomponente möglich wird, die die Fluidleitungen 13 im in der Fig. 2 gezeigten montierten Zustand am Dosierkopf 1 gegen ein unerwünschtes Abziehen sichert. Auch diese Halteplatte 23 kann aus einem wärmeisolierenden Material, zum Beispiel einem Kunststoffmaterial hergestellt sein.One of the fluid lines 13 is connected to the channel regions 24 projecting from the connection plate 10. The channel regions 24 and / or the fluid lines 13 are preferably formed in this connection region so that their ends 25 in the in Fig. 2 widened outwardly open state shown, whereby a simple support and support of the fluid lines 13 to the channel regions 24 by means of a holding plate 23 shown here only as an example hose clamp is possible, the fluid lines 13 in the in the Fig. 2 shown mounted state on the dosing head 1 against unwanted removal secures. This holding plate 23 may be made of a heat-insulating material, for example a plastic material.

Die Festlegung der Halteplatte 23 am Dosierkopf 1 kann auf herkömmliche Weise erfolgen, zum Beispiel mittels einer kraft- und/oder formschlüssigen und/oder stoffschlüssigen Verbindung. Konkret ist hier beispielhaft vorgesehen, die Halteplatte 23 mittels Schraubverbindungen 23a mit der Anschlussplatte 10 zu verbinden. Die Anschlussplatte 10 ist wiederum mittels mehrerer Schraubverbindungen 10a mit einer eine Montageöffnung aufweisenden Bestandteil des Gehäuses 34 bildenden Trägerplatte 42 verbunden.The determination of the holding plate 23 on the dosing head 1 can be done in a conventional manner, for example by means of a non-positive and / or positive and / or material connection. Specifically, it is provided here by way of example to connect the holding plate 23 by means of screw 23a with the connection plate 10. The connection plate 10 is in turn connected by means of a plurality of screw connections 10a to a carrier plate 42 forming a mounting part of the housing 34.

Wie dies der Fig. 2 weiter zu entnehmen ist, ist auf der der Anschlussplatte 10 gegenüberliegenden Seite der Kühlplatte 6 eine Elastomer- bzw. Silikonschicht 12 angeordnet, die die Auslasskanäle 8 überdeckt und im Bereich der Auslasskanäle 8 eine zum Beispiel lochförmige bzw. schlitzartige Aussparung als Auslassöffnung aufweist, die somit eine Auslassdüse 14 ausbildet. Wie dies aus der Fig. 2 ersichtlich ist, ist hier der Durchmesser dieser Aussparungen bzw. Auslassdüsen 14 bevorzugt kleiner als der Durchmesser der Auslasskanäle 8. Diese Elastomer- bzw. Silikonschicht 12 ist mittels einer weiteren Halteplatte 11, die sich mit einem randseitigen Abstützbereich 11a von unten her an der Kühlplatte 6 abstützt, zwischen eben dieser Halteplatte 11 und der Kühlplatte 6 gehalten, wobei die Halteplatte 11 im Bereich der Auslassdüsen 14 bzw. im Bereich der Auslasskanäle 8 eine relativ große Öffnung 15 aufweist, die durchmessergrößer ist als die zugeordneten Auslassdüsen 14 in der Elastomer- bzw. Silikonschicht 12 bzw. bevorzugt auch größer ist als der Durchmesser der Auslasskanäle 8. Diese durchmessergrößeren Öffnungen 15 in der Halteplatte 11 sind nach außen zu konisch abgeschrägt, so dass sich die die Auslassdüsen 14 definierenden Aussparungsrandbereiche der Elastomer- bzw. Silikonschicht 12 bei einer Zudosierung wenigstens zum Teil in den Bereich der Öffnungen 15 hinein verlagern können, wie dies lediglich äußerst schematisch in Verbindung mit dem in der Bildebene der Fig. 2 rechten Auslasskanal 8 gezeigt ist.Like this one Fig. 2 can be seen further, on the opposite side of the connection plate 10 of the cooling plate 6, an elastomer or silicone layer 12 is arranged, which covers the outlet channels 8 and in the region of the outlet channels 8, for example, a hole-like or slot-like recess as an outlet opening, thus an outlet nozzle 14 is formed. Like this from the Fig. 2 It can be seen here that the diameter of these recesses or outlet nozzles 14 is preferably smaller than the diameter of the outlet channels 8. This elastomer or silicone layer 12 is provided by means of a further holding plate 11 which adjoins an edge-side support region 11a supported on the cooling plate 6 from below, held between just this holding plate 11 and the cooling plate 6, wherein the holding plate 11 in the region of the outlet nozzles 14 and in the region of the outlet channels 8 has a relatively large opening 15 which is larger in diameter than the associated outlet nozzles 14 in the elastomer or silicone layer 12 and preferably also larger than the diameter of the outlet channels 8. These larger diameter openings 15 in the holding plate 11 are tapered outwardly to conically, so that the outlet nozzle 14 defining Aussparungsrandbereiche the elastomer or The silicon layer 12 can be displaced at least partially into the region of the openings 15 when metered in, as is shown only very schematically in connection with the one in the image plane of FIG Fig. 2 right outlet channel 8 is shown.

Die Halteplatte 11 kann zum Beispiel ebenfalls aus einem nicht wärmeleitfähigen bzw. wärmeisolierenden Material ausgebildet sein. Die Halteplatte 11 wird hier beispielhaft von unten her, das heißt von einer Ausgabeseite 31 her (gegenüberliegend befindet sich die Zuführungsseite 32) mit einem Sicherungsring 33 gesichert, der im Bereich der gehäuseseitigen Trägerplatte 42 randseitig anliegt und einen Randbereich der Halteplatte 11 umgreift sowie zum Beispiel mittels eines Bajonettverschlusses festgelegt sein kann. Auch der Sicherungsring 33 kann aus einem wärmeisolierenden Material, zum Beispiel einem Kunststoffmaterial ausgebildet sein.The holding plate 11 may for example also be formed of a non-heat-conducting or heat-insulating material. The holding plate 11 is exemplified here from below, that is from an output side 31 ago (opposite the feed side 32) secured with a retaining ring 33 which rests in the region of the housing-side support plate 42 edge and surrounds an edge region of the support plate 11 and for example can be fixed by means of a bayonet lock. Also, the locking ring 33 may be formed of a heat-insulating material, for example, a plastic material.

Die gehäuseseitige Trägerplatte 42 weist weiter eine zentrale Montageöffnung auf, in der die Kühlplatte 6 mit zugeordneter Anschlussplatte 10 und zugeordneter Elastomer- bzw. Silikonschicht 12 im Wesentlichen konturangepasst einliegt. Im Bereich dieser Montageöffnung ist die Kühlplatte 6, wie dies aus der Fig. 2 ersichtlich ist, mittels der Anschlussplatte 10 bzw. auf der gegenüberliegenden Seite mittels der Elastomer- bzw. Silikonschicht 12 mitsamt zugeordneter Halteplatte 11 und Sicherungsring 33 dergestalt nach außen zur Umgebung hin abgeschirmt bzw. isoliert, dass außer im Bereich der Öffnungen 15 bzw. der Auslassdüsen 14 keine Wärme- bzw. Kältebrücken zur Umgebung hin existieren, wodurch sichergestellt ist, dass die Auslasskanäle 8 bzw. das darin stehende Medium auf optimale Weise mit einem hohem Wirkungsgrad auf eine definierte Temperatur abgekühlt werden kann. Wie in der Fig. 2 gezeigt, kann gegebenenfalls auch wenigstens ein zusätzliches wärmeisolierendes Isolationselement 22 vorgesehen sein, um eine zuverlässige Wärmeisolierung für die Kühlplatte 6 bereitzustellen.The housing-side support plate 42 further has a central mounting opening, in which the cooling plate 6 rests with associated connection plate 10 and associated elastomer or silicone layer 12 substantially contour-matched. In the region of this mounting hole is the cooling plate 6, as is known from the Fig. 2 can be seen, by means of the terminal plate 10 and on the opposite side by means of the elastomer or silicone layer 12 together with associated retaining plate 11 and retaining ring 33 such after Shielded or isolated outside to the environment that except in the area of the openings 15 and the outlet nozzles 14 no heat or cold bridges exist to the environment, which ensures that the outlet channels 8 and the medium therein in an optimal way with can be cooled to a defined temperature at a high efficiency. Like in the Fig. 2 If necessary, at least one additional heat-insulating insulating element 22 may also be provided in order to provide reliable thermal insulation for the cooling plate 6.

Wie aus der Fig. 2 weiter ersichtlich, ist die Kühlplatte 6 weiter mit einem Koppelbereich 9 versehen, der hier als gekröpfter und im Anschluss an die Abwinklung bzw. Kröpfung horizontal verlaufender, plattenförmiger Kühlplatten-Teilbereich ausgebildet ist. Dieser Koppelbereich 9 bildet eine Kühl-Kontaktfläche 6a aus, die wärmeableitend mit zum Beispiel einem Peltierelement 16 als Kälteerzeugungseinrichtung verbunden ist, ansonsten aber mittels eines wärmeisolierenden Materials 22 gegenüber der Umgebung abgeschirmt bzw. isoliert ist.Like from the Fig. 2 can be seen, the cooling plate 6 is further provided with a coupling region 9, which is formed here as a cranked and following the angled or cranking horizontally extending, plate-shaped cooling plate portion. This coupling region 9 forms a cooling contact surface 6a, which is heat-dissipating connected to, for example, a Peltier element 16 as a cooling device, but otherwise shielded or insulated from the environment by means of a heat-insulating material 22.

Das Peltierelement 16 steht mit seiner wärmeabführenden Warmseite mit einem Kühlkörper 17 in wärmeleitender Verbindung, dergestalt, dass bei einer Ansteuerung und Betätigung des Peltierelements 16 Wärme von der Kontaktfläche 6a zu der Kontaktfläche 7 strömt, wodurch der Kühlplatte 6 und damit letztendlich dem in den Auslasskanälen 8 stehenden Medium, wie dies beispielhaft in Verbindung mit dem in der Bildebene der Fig. 2 linken Auslasskanal 8 dargestellt ist, Wärme entzogen wird (Pfeile 37 in Fig. 2). Diese Wärme wird über Kühlrippen 19 des Kühlkörpers 17 in die Umgebung abgegeben. Dadurch wird auf einfache Weise sichergestellt, dass die Rückstände in den Auslasskanälen 8 auf eine gewünschte, vorgegebene bzw. definierte Temperatur abgekühlt werden. Bei dieser Temperatur handelt es sich z.B. in etwa um die Taupunkttemperatur. Dadurch kann für die Rückstände ein Gleichgewicht zwischen Verdunstung und Kondensation eingestellt werden, wodurch die sich im Bereich der Auslasskanäle 8 befindenden Rückstände stets feucht gehalten werden und es zu keinem Austrocknen dieser Rückstände kommen kann, so dass die Verstopfung der Auslasskanäle 8 bzw. der Auslassdüsen 14 der Ausgabeeinrichtungen 2 zuverlässig vermieden werden kann. Zudem kann durch eine derartige gezielte Abkühlung sichergestellt werden, dass sich keine Mikroorganismen bilden bzw. vermehren können.The Peltier element 16 is with its heat-dissipating hot side with a heat sink 17 in thermally conductive connection, such that upon actuation and actuation of the Peltier element 16 heat from the contact surface 6a flows to the contact surface 7, whereby the cooling plate 6 and thus ultimately in the outlet channels. 8 standing medium, as exemplified in connection with the in the image plane of the Fig. 2 left outlet channel 8 is shown, heat is removed (arrows 37 in Fig. 2 ). This heat is released via cooling fins 19 of the heat sink 17 into the environment. This ensures in a simple manner that the residues in the outlet channels 8 are cooled to a desired, predetermined or defined temperature. For example, this temperature is approximately the dew point temperature. This can be for the Residues are set a balance between evaporation and condensation, whereby the residues located in the region of the outlet channels 8 are always kept moist and it can come to no drying out of these residues, so that the blockage of the outlet channels 8 and the outlet nozzles 14 of the output devices 2 reliably can be avoided. In addition, it can be ensured by means of such targeted cooling that no microorganisms can form or multiply.

Zur Unterstützung der Wärmeabfuhr kann dem Kühlkörper 17 ferner auch ein Lüfter 20 zugeordnet sein, der den Kühlkörper 17 mit einen Kühlluftstrom beaufschlagen kann, wodurch die Wärmeabführ über den Kühlkörper 17 noch weiter gesteigert werden kann.To support the heat dissipation, the heat sink 17 may also be associated with a fan 20, which can act on the heat sink 17 with a cooling air flow, whereby the heat dissipation via the heat sink 17 can be further increased.

Die Ansteuerung des Peltierelements 16 zur Einstellung einer definierten Soll-Temperatur erfolgt vorzugsweise mittels einer in den Steuerungsrechner 29 integrierten Steuer- und/oder Regelungseinrichtung, und zwar in Abhängigkeit von einer mittels wenigstens einer Messeinrichtung erfassten Umgebungstemperatur und in Abhängigkeit von einer mittels wenigstens einer Messeinrichtung erfassten Luftfeuchtigkeit der Umgebungsluft.The control of the Peltier element 16 for setting a defined desired temperature is preferably carried out by means of a control computer 29 integrated control and / or regulating device, in dependence on a detected by at least one measuring device ambient temperature and in dependence on a detected by at least one measuring device Humidity of the ambient air.

Claims (18)

  1. Metering device for the metered dispensing of flowable media, with at least one discharge device (2) which can be connected fluidically to at least one container (3) containing a flowable medium (18) to be dispensed, and which has an outlet channel (8) for the flowable medium (18), said outlet channel (8) having an outlet opening (14), wherein the metering device (43) is assigned a cooling device (5) by means of which a residue (18a) of the flowable medium (18) remaining in the outlet channel (8) of the discharge device (2) can be cooled to a predetermined and/or defined temperature, wherein the cooling device (5) comprises a cooling element (6) which is in cooling contact with at least one subregion of the at least one discharge device (2), characterized in that
    - the cooling element (6) is formed from a heat-conducting material, by means of which at least one defined subregion of an outlet channel (8) of the at least one discharge device (2) can be cooled to a defined temperature,
    - the cooling device (5) has an open-loop and/or closed-loop control device, at least one measuring device for detecting a reference temperature, and at least one measuring device for detecting a reference moisture, which are arranged and/or designed such that the residue (18a) of the flowable medium (18) remaining in the outlet channel (8) is cooled to a predetermined setpoint temperature,
    - the cooling device (5) has at least one cold generator (16), which is in heat-dissipating cooling contact with the cooling element (6).
  2. Metering device according to Claim 1, characterized in that the cooling element (6) forms at least one subregion of an outlet channel (8) of the at least one discharge device (2).
  3. Metering device according to Claim 1 or 2, characterized in that the cooling element (6) is formed in a plate shape at least in subregions, in particular by a cooling plate.
  4. Metering device according to Claim 2 or 3, characterized in that the cooling element (6) has a number of cooling element recesses (9a) corresponding to the number of discharge devices (2), and in that the at least one cooling element recess (9a) forms at least one subregion of the outlet channel (8) of the discharge device (2).
  5. Metering device according to one of the preceding claims, characterized in that the metering device (43) has a metering head (1) with a plurality of discharge devices (2), which can each be connected fluidically to a container (3) containing a flowable medium (18) that is to be dispensed.
  6. Metering device according to Claim 4 or 5, characterized in that the cooling element (9) is coupled to an attachment element (10) in such a way that the at least one cooling element recess (9a) of the cooling element (9) and a channel region (24) formed in the attachment element (10) together form an outlet channel (8).
  7. Metering device according to Claim 6, characterized in that, in order to form a uniformly smooth-walled outlet channel (8), an edge-free and/or stepless transition is provided between the cooling element recess (9a) and the channel region (24) at the attachment element side.
  8. Metering device according to Claim 5 and either of Claims 6 and 7, characterized in that the attachment element (10) is formed by an attachment plate which bears flat on the cooling element (6) in at least some regions and has a plurality of channel regions (24) which protrude from the attachment plate, to each of which a respective cooling element recess (9a) is assigned and/or to which a fluid line (13) coupled indirectly or directly to the container (3) can be attached.
  9. Metering device according to one of the preceding claims, characterized in that the outlet opening (14) of the outlet channel (8) is designed as an outlet nozzle.
  10. Metering device according to Claim 9, characterized in that the outlet channel (8) has a nozzle cap which is arranged at the outlet opening and which has a cutout defining and/or forming an outlet nozzle as outlet opening (14).
  11. Metering device according to Claim 10, characterized in that the nozzle cap is formed by an elastomer layer (12) which is arranged on the side of the cooling element (6) lying opposite the attachment element (10) and/or bears flat thereon at least in some regions.
  12. Metering device according to Claim 11, characterized in that the elastomer layer (12) is held on the cooling element (6) by means of a holding device which has an opening (15) assigned to the at least one elastomer-layer-side outlet nozzle (14) and having a larger diameter than the latter.
  13. Metering device according to Claim 12, characterized in that this opening (15) of larger diameter is designed in such a way that an edge region defining the at least one outlet nozzle (14) can be moved at least partially into the opening region when a fluid is dispensed.
  14. Metering device according to one of the preceding claims, characterized in that the cooling element (6) is at least partially heat-insulated in those regions in which it is not in cooling contact with the cold generator (16) and/or with the residue (18a) and/or with the discharge device (2).
  15. Metering device according to one of the preceding claims, characterized in that a heat side of the cold generator (16) is coupled to a heat sink (17) by means of which heat can be removed.
  16. Metering device according to Claim 15, characterized in that the heat sink (17) has cooling ribs (19) and/or the heat sink (17) can be subjected to a cold air stream generated by at least one fan (20), and/or the heat sink is formed by a housing of the metering device (43).
  17. Method for actuating a metering device which has at least one discharge device (2), wherein the discharge device (2) can be connected fluidically to at least one container (3) containing a flowable medium (18) to be dispensed, and which has an outlet channel (8) for the flowable medium (18), said outlet channel (8) having an outlet opening (14), wherein the metering device (43) is assigned a cooling device (5) by means of which a residue (18a) of the flowable medium (18) remaining in the outlet channel (8) can be cooled to a predetermined and/or defined temperature, characterized in that the cooling device (5) has an open-loop and/or closed-loop control device, at least one measuring device for detecting a reference temperature, and at least one measuring device for detecting a reference moisture, which are arranged and/or designed such that the residue (18a) of the flowable medium (18) remaining in the outlet channel (8) is cooled to a predetermined and/or defined setpoint temperature.
  18. Method according to Claim 17, characterized in that the at least one measuring device for detecting a reference temperature detects the ambient temperature and the at least one measuring device for detecting a reference moisture detects the air moisture of the ambient air, wherein the residue (18a) of the flowable medium (18) remaining in the outlet channel (8) is cooled approximately to the dew point temperature of the ambient air as predetermined and/or defined setpoint temperature.
EP12008470.2A 2012-12-20 2012-12-20 Metering device for the metered dispensing of flowable media Active EP2745943B1 (en)

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NO12008470A NO2745943T3 (en) 2012-12-20 2012-12-20
EP12008470.2A EP2745943B1 (en) 2012-12-20 2012-12-20 Metering device for the metered dispensing of flowable media

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IT201900022872A1 (en) 2019-12-03 2021-06-03 Dromont S P A AUTOMATIC HUMIDIFICATION SYSTEM OF A DISPENSING HEAD OF A FLUID PRODUCT DOSING MACHINE

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IT201700038593A1 (en) * 2017-04-07 2018-10-07 Dromont S P A DOSING SYSTEM FOR DETERMINING A PLURALITY OF FLUIDS.

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EP3838430A1 (en) 2019-12-03 2021-06-23 Dromont S.p.A. An automatic humidification system for a dispensing head of a dosing machine of fluid products

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EP2745943A1 (en) 2014-06-25

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