EP2781257B1 - Canister for pumpable media, in particular for colouring pigment preparations - Google Patents
Canister for pumpable media, in particular for colouring pigment preparations Download PDFInfo
- Publication number
- EP2781257B1 EP2781257B1 EP13001391.5A EP13001391A EP2781257B1 EP 2781257 B1 EP2781257 B1 EP 2781257B1 EP 13001391 A EP13001391 A EP 13001391A EP 2781257 B1 EP2781257 B1 EP 2781257B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- canister
- pump
- valve
- way valve
- piston
- 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.)
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Links
- 239000000049 pigment Substances 0.000 title claims description 24
- 238000002360 preparation method Methods 0.000 title claims description 12
- 238000004040 coloring Methods 0.000 title 1
- 238000012423 maintenance Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 18
- 238000006073 displacement reaction Methods 0.000 description 14
- 238000005086 pumping Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000020347 spindle assembly Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/65—Mixers with shaking, oscillating, or vibrating mechanisms the materials to be mixed being directly submitted to a pulsating movement, e.g. by means of an oscillating piston or air column
- B01F31/651—Mixing by successively aspirating a part of the mixture in a conduit, e.g. a piston, and reinjecting it through the same conduit into the receptacle
-
- 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
- B01F33/841—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with component receptacles fixed in a circular configuration on a horizontal table, e.g. the table being able to be indexed about a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/7544—Discharge mechanisms characterised by the means for discharging the components from the mixer using pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
Definitions
- the invention relates to a canister for pumpable media, in particular for color pigment preparations, according to the preamble of claim 1.
- Such canisters or containers are used, for example, in the dispensing of paints in so-called paint dispensers.
- paint dispensers In this a large number of different shades is reproducibly composed of a much smaller number of primary colors (color pigment preparations).
- paint dispensers are well known in the art and regularly comprise a housing in which various, the color pigment preparations containing canisters are housed. These canisters are connected via fluid-conducting connections with a pumping device, which in turn is fluidically connected to a metering unit.
- a Farbdispensers thus predetermined shades can be reproducibly mixed together, the individual components are specifically controlled by means of a computer unit in which different color schemes are stored.
- the medium is dispensed regularly via a dosing head of the dosing unit, which usually has a plurality of dispensing nozzles for dosing into a container containing a base, for example a white or transparent paint.
- Such a color dispenser is for example from the DE 695 15 042 T2 known, in which a plurality of pumps and a motor driving the pump are arranged and coupled together on a common base plate.
- the pumps are connected to pairs of sprockets to form an in-line drive system.
- the pumps have an inlet opening and an outlet opening, which are fluidically connected via hose lines to an associated canister and to a dispensing valve arranged at a distance above the pumps and the canisters. From the dispensing valve continues to lead another hose to the canister.
- fluid can be passed via the dispensing valve to a dosing head via the pump and the correspondingly assigned hose lines.
- the dispensing valve can also be switched or controlled so that the fluid is pumped via the hose lines and the dispensing valve in a circuit. This recirculation is to avoid the settling of the fluid in the various lines and in the canisters.
- the structure is relatively complex and maintenance-intensive here, in particular with regard to the pump arrangement on a base plate and the hose guide or piping.
- EP-A-2505259 discloses a canister according to the preamble of claim 1.
- a canister (or a metering device) is proposed for pumpable media, in particular for color pigment preparations, with a conveying device associated with the canister, by means of which a pumpable medium received in the canister can be withdrawn from the canister in a controlled manner via a valve device, wherein the valve device Moreover, it is designed and controllable such that at least part of a quantity of pumpable medium withdrawn from the canister can be returned to the canister.
- the delivery device is formed by a pump arranged on the canister with a pump housing, the valve device designed as a multi-way valve being connected to the pump housing, in particular directly connecting the pump housing to a valve housing of the multiway valve.
- the compact canister construction with there arranged pump and multi-way valve also causes only relatively little hose or pipe connections are necessary, so that quite a total of less component-intensive and thus inexpensive construction is provided.
- the compact arrangement of the components also short fluid paths are possible, which has an advantageous effect on the delivery process of the pumpable media.
- large passage cross-sections can be realized in a simple manner, so that the arrangement tends to be less clogging overall, as is the case with structures with numerous and especially long hose and pipe connections.
- the arrangement of the pump on the canister, the direct connection of the multi-way valve to the pump housing and also the attachment possibility of control electronics on the canister, for example on the pump housing, has the further advantage that an exchange of the respective canisters can be done quickly and easily. Because the associated control electronics can be staked easily and quickly in such a structure and then the canister unit are removed from the color dispenser.
- the canister is also to be understood here in a comprehensive sense.
- the canister according to the invention is a metering device for use in a metering device, such as a paint dispenser, wherein the respective pumpable medium, in particular a color pigment preparation, in the metering device, is received and withdrawn from the metering device at predetermined times, a defined amount of the pumpable medium, in particular by means of the metering device is withdrawn.
- the term canister thus expressly represents a synonym for the term dosing device.
- the pump can be formed for example by a hose or bellows pump.
- the Pump is formed by a arranged on the canister cylinder-piston pump with a pump cylinder as a pump housing and a piston displaceably guided therein, wherein the multi-way valve is connected to the pump cylinder, in particular the pump cylinder directly connects to a valve housing of the multi-way valve.
- a cylinder-piston pump allows for structurally simple, inexpensive and functionally reliable way a dosage with very high precision.
- such a cylinder-piston pump is characterized by a long service life.
- the direct connection of the pump housing to a valve housing of the multi-way valve can basically be done in different ways.
- a free end portion of the pump housing in particular a pump cylinder of a cylinder-piston pump, connected in such a form to the valve housing, in particular plugged there by means of a Aufsteck- and / or Aufsetztagen and / or is placed, that the pump housing (For example, a piston of a cylinder-piston pump receiving cylinder cavity of a pump cylinder) directly and directly, in particular without hose and / or pipe connection (s), connects to the valve housing, in particular in the at least one displaceable shut-off of the multi-way valve receiving valve housing Interior passes over.
- the multiway valve can basically be constructed in different ways. Particularly preferred is an embodiment in which the multi-way valve is constructed and / or switchable, that in at least one switching position, a flow connection between the canister and the pump housing is made, in, for example, in a direction away from the multi-way valve displacement of a piston of a cylinder Piston pump, pumpable medium from the canister into the pump housing is sucked and in, for example, in a directed to the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium in the canister, for example, from the pump housing in the Canister is pumpable.
- At least one other switching position is a flow connection between the pump housing and one of the Directional return line leading produced, in which, for example, in a directed to the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium in the lead-away line is pumped and in, for example, in a direction away from the multi-way valve displacement of a piston Cylinder-piston pump, pumpable medium from the outgoing line in the pump cylinder (back) is sucked.
- the pump housing for example a pump cylinder of a cylinder-piston pump
- the valve housing of the multi-way valve Due to the direct connection of the pump housing, for example a pump cylinder of a cylinder-piston pump, to the valve housing of the multi-way valve thus an advantageous structural unit is created in which a portion of the pump housing thus simultaneously performs valve function and for intermediate storage or distribution of the fluid the corresponding flow paths is used.
- a particularly advantageous compact canister construction together with pumping arrangement and valve arrangement can be made available, which contributes to an overall compact construction of the paint dispenser. Furthermore, this results in a wide variety of circuit options of the multi-way valve with short flow paths, which significantly increases the structural variability and flexibility.
- a plurality of, in particular two, mutually independent flow paths are provided between the canister and the multi-way valve, which are assigned to different switching positions of the multi-way valve for establishing a flow connection between the pump housing and the respective flow path.
- two independent flow paths between the canister and the multi-way valve may be provided, which can be assigned such different switching positions of the multi-way valve that the multi-way valve in a first switching position forms a first flow path between the canister and the pump housing, over, for example in a displacement of a piston of a cylinder-piston pump directed away from the multi-way valve, pumpable medium from a first canister region, in particular from a lower canister region in the vertical axis direction, can be sucked into the pump housing.
- this flow path can also be designed so that via this, in particular in a directed to the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium in the or a first canister area, in particular in a lower axis in the high-axis direction canister area, is pumpable, in particular from the pump housing back into the first canister area, is pumpable, because this way, for example, a good mixing of the first canister area can be achieved.
- the multi-way valve can form a second flow path in a second switching position different from the first switching position, via which, in particular following pumping out of the canister via the first flow path described above, or in particular with a relocation of a piston to the multiway valve Cylinder-piston pump, pumpable medium in a second, opposite the first canister area and / or spaced from this canister area, in particular in a Hochachsencardi upper canister area, is pumpable, in particular pumpable from the pump housing into the second canister area.
- a functionally reliable mixing of the entire pumpable medium in the canister can be ensured in a simple manner, in particular in a recirculation operation.
- this second flow path in particular in a direction away from the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium from a second, relative to the first canister area different and / or from this beabstarideten canister area, in particular from a high-axis direction upper canister area to suck in the pump housing, for example, to perform a reverse recirculation operation from top to bottom, if so desired.
- pumpable medium from a second, relative to the first canister area different and / or from this beabstarideten canister area, in particular from a high-axis direction upper canister area to suck in the pump housing, for example, to perform a reverse recirculation operation from top to bottom, if so desired.
- the first flow path can be formed according to a preferred embodiment by a substantially valve housing side and possibly also canister side formed flow channel (a short Schlauch Gustavs- or pipe connection between valve housing side and kanister workedem flow channel area is basically possible), based on a canister operating position, for Example opens in a seen in the vertical axis lower canister area.
- the second flow path can be formed by a flow channel formed on the valve housing side and further on the side of the canister (again, a short hose line or pipe connection between the valve housing side and the canister side flow channel region is in principle possible). This can, for example, open, based on a canister operating position, in an upper canister area seen in the vertical axis direction. With such a specific embodiment, in a recirculation operation, a functionally reliable mixing of the pumpable medium in the canister can be ensured in a simple manner.
- the multi-way valve which is for example a 4/3-way valve, a structure in which in a further, in particular third circuit position, the flow connection between the pump housing and the direction away from the multi-way valve line is made.
- a multi-way valve can thus be realized in a structurally simple manner, and especially in a structurally compact manner, the desired flow guidance in conjunction with a pump which is located directly on the canister.
- the multi-way valve can also have another, For example, have a fourth valve position, for example, a rest position in which no flow paths are open and the valve is thus shut off.
- the multi-way valve itself has a plurality of, different flow paths associated orifices in the valve housing.
- These orifices are a covering and / or closing and rotatable relative to these perforated disc with at least one, preferably associated with a single disc opening, which opens at least one disc opening directly or indirectly into the pump housing.
- the rotatable perforated disk preferably has a drive axle protruding therefrom for its rotation or is coupled and / or connected to such a drive axle.
- the drive axle can either be connected in the same material and / or in one piece with the perforated disk or can also be formed by a separate component which can be connected, for example, by means of the perforated disk by means of a form-locking and / or frictional connection. A cohesive connection would, of course, always be possible at any time.
- This drive axle is then guided through the valve housing to the outside and there coupled to a valve actuator or coupled with a valve actuator.
- the drive axle can either be an immediate component of an actuating device arranged on the valve housing, but alternatively also the drive axle can be designed as a freely outwardly projecting drive axle, which can be coupled to the drive axle, for example by means of a movable or displaceable actuating device drive.
- a further, stationary perforated disc can be provided between the valve housing side formed orifices and the rotatable perforated disc having recesses associated with the orifices and on which the rotatable perforated disc in a planar abutment connection rotates or tightly rests relative thereto the drive axis of the rotatable perforated disc in this case is preferably passed through an axis recess of the stationary perforated disc.
- at least the mutually associated perforated disc sides or surfaces of the stationary and rotatable perforated disc from a very good sliding properties having material or provided with a corresponding coating or be formed, which is advantageous to the ease and reliability of Multiway valve affects.
- Particularly preferred here is the formation of both the stationary perforated disc and the rotatable perforated disc of a ceramic material.
- the actuating device is arranged on the canister and / or on the valve housing.
- the actuating device can also be designed as a displaceable unit which, in particular in the case of several canisters, can be brought into operative connection with the drive axle mounted on the valve housing side.
- the rotatable perforated disc is formed in a wide part. It has a drive axle supporting the first component, which faces the pump housing and has a lower, the orifices facing and penetrated by the drive axle second component, which is rotationally connected to the first component, for example, rotationally connected by a positive connection ,
- the two components are also preferably made of different materials, for example, the lower, second component made of a ceramic material, while the contrast, upper first component may then be formed of a low-cost plastic material.
- valve actuator is arranged directly or indirectly on the canister, preferably in such a way, on the valve housing a plurality of spaced apart screw domes are arranged, each having a is associated with the actuating device side Anschraubflansch Scheme, and is preferably assigned such that the actuator can be determined by means of several screwed through the Anschraubflansch Schemee in the screw dome mounting screws on the valve housing.
- the pump in particular the pump housing, as well as the valve housing and at least part of the existing actuators, in particular the valve actuator or the pump actuator, an elongated, columnar and form a structural unit connected to the canister or they are arranged essentially in a straight line extension next to or behind one another (depending on the viewing direction) on the canister.
- the valve housing can connect substantially in straight extension to the pump housing and the valve actuator substantially in straight extension to the valve housing and a pump actuator substantially in straight extension to the pump housing to the desired space-saving and compact canister design together with pump housing and multi-way valve to be able to train.
- the canister has a rectangular or pie-shaped or wedge-shaped (for example, preferably symmetrical trapezoidal or triangular) outer geometry and is the Pump, in particular the pump housing, and associated therewith the valve housing of the multi-way valve or the valve housing associated therewith, together with actuating device on a narrow side of the canister outside or canister outer wall.
- This narrow side is preferably assigned in the mounted state of a dosing head unit of a dosing device or a Farbdispensers.
- a pump actuating device can be arranged on an end region of the pump housing opposite the multiway valve.
- a piston actuator is arranged as a pump Betusch Trentsseiritechnisch on one of the multi-way valve opposite end portion of the pump housing formed by a pump cylinder housing a cylinder-piston pump, which is connected to a piston with a cylinder. Piston-pump connected piston rod cooperates for a piston adjustment.
- the actuating device or its housing has a connecting flange, which is screwed by means of a plurality of screw substantially in rectilinear extension of the pump housing with this.
- this pump actuator can thus be arranged in a rectilinear extension of the pump housing and thus, as described above in connection with the valve housing and the valve actuator, a total of very compact, small construction of the canister together with multi-way valve and actuators are provided.
- the piston actuator may have a controllable by a control device spindle nut which is rotatable about a Betjanswerks worne spindle nut axis and which cooperates with the at least partially designed as a threaded piston rod such that during a rotational actuation of the spindle nut of the piston in response to the respective direction of rotation in the direction Multi-way valve or in the direction of the multi-way valve is displaced away.
- a threaded spindle assembly allows a functionally reliable piston adjustment in conjunction with an advantageous for each desired piston position transmission self-locking.
- the piston rod projects beyond the piston actuating device with a free end region, wherein a contact and / or sliding element is arranged at the free end region, which is guided in a guide groove formed on the side of the canister.
- the guide can be designed in such a way that in each case a contact counter element is arranged in two mutually defined spaced Sharingsnutpositionen, which switches off or controls the actuator on contact with the contact and / or sliding element. This results in a significant simplification of operation in the operation of the cylinder-piston pump.
- a control device can be arranged on an outer wall of the canister, in particular on an outer wall of the pump housing, by means of which the pump and the multi-way valve, in particular their respective actuating devices, can be controlled in a fast, compact and simple manner.
- the canister can have a maintenance opening, which can be detachably closed by means of a closure element, at a top end of the canister in the operating position in the vertical axis direction.
- a maintenance opening which can be detachably closed by means of a closure element, at a top end of the canister in the operating position in the vertical axis direction.
- a closure element itself is smaller than the maintenance opening Refill formed, which is releasably closed with a second closure element.
- the arrangement of the canisters in the color dispenser is such that only the refill opening of the canisters is visible and accessible, the container tops and thus the maintenance openings but for example under a corresponding cover and thus are not freely accessible.
- a metering device for the metered dispensing of pumpable media, in particular for the metered dispensing of color pigment preparations, is connected to a plurality of canisters according to the invention as described above.
- a plurality of pie-like and / or wedge-shaped canisters with their longitudinal sides with a defined gap spacing and / or directly adjacent to each other in the metering device in the manner of a circular ring or a circular ring section, in particular semicircular, arranged around a central and / or central Dosierkopfiki around, resulting in short flow paths and an overall compact arrangement.
- a construction of the metering device in which the canister tops of the canisters are covered by a cover portion that forms a wall region of the metering device, such that only the closure elements closing the refill openings of the canisters are visible and / or accessible from the outside.
- the dosing head unit together with one of these associated, the canister receiving housing unit of the dosing device spaced above a footprint of the dosing and / or spaced above a receptacle for a mixing vessel.
- a method is described in which the pump In particular, a cylinder-piston pump, and the multi-way valve by means of a control device are controlled so that the multi-way valve, in particular in a direction away from the multi-way valve displacement of a piston of a cylinder-piston pump, in a first valve position (suction position) a defined amount of pumpable medium from the canister, in particular from a first or lower canister area, sucks, preferably in a pump housing, most preferably sucks in a pump cylinder of a cylinder-piston pump.
- the multi-way valve is then switched to either a second valve position (Ausschiebgna), in particular in a taking place after a piston displacement and directed to the multi-way valve displacement of a piston of a cylinder-piston pump in which a defined amount the discharged from the canister pumpable medium via the multi-way valve is discharged or discharged, in particular via a coupled with the multi-way valve hose and / or pipe is conveyed to a dosing, or in a third valve position (recirculation position) is switched in the off the pumped aspirated medium is conveyed back into the canister, in particular in the first canister area or in a distance from the first canister area second or upper canister area is conveyed back.
- the pump and the multi-way valve are also controllable by means of the control device according to a particularly preferred process control that the multi-way valve remains in the second valve position following the pushing out or running of the pumpable medium and, preferably by a directed away from the multi-way valve displacement of a piston Cylinder-piston pump, a defined residue amount of pumpable medium, in particular a remaining in a leading to a dosing head hose and / or pipe residue amount of pumpable medium is sucked back from the pump, in particular sucked back into the pump housing.
- Fig. 1 is and perspectively shown acting as a color dispenser 1 metering device for dispensing here, for example, colors or color pigment preparations shown.
- a central dosing head unit 2 around a plurality of, with their longitudinal sides substantially adjacent to each other or with a defined gap spacing spaced apart canisters 3 are arranged semicircular, of the canisters 3 here only one, a refill opening occlusive closure lid 4 is visible and the Canister tops otherwise covered by a part of a housing wall of the Farbdispensers 1 forming cover 5 are covered.
- the cover plate 5 is removable, so that the canisters 3 and their maintenance openings are accessible, which will be described in more detail below.
- the canisters 3 here preferably have a wedge-shaped outer contour, wherein, as in the Fig. 1 shown schematically, optionally also different lengths or large canisters 3 can be used.
- the canisters 3 are filled with different color pigment preparations, and can, as will be explained in detail below, convey their respective color pigment paste to the dosing head (not shown) of the dosing head unit 2 by appropriate activation, where the respective color pigment paste in one, a base color, for example white, exhibiting mixing vessel 6 is introduced, which is arranged here for example on a podium-like receptacle 7 of the Farbdispensers 1.
- the dosing head unit 2 together with one of these associated, the canister 3 receiving housing unit is as shown spaced above a footprint of the Farbdispensers 1 and spaced above the receptacle 7 for the mixing vessel 6 is arranged.
- control computer 8 is arranged on the dosing head unit 2, in which different color combinations are stored and accordingly different color mixtures can be provided by means of the color dispenser 1.
- canisters 3 which are preferably and exemplary designed as pie-like or wedge-shaped containers can, in principle, be constructed as described in particular in US Pat Fig. 2 to 5 is explained in more detail.
- the canisters 3 can therefore also be designed in particular as a rectangular container:
- a cylinder-piston pump 10 extending over at least a partial area of the narrow side length is arranged on a narrow side 9 of the canister 3 assigned to the dosing head unit 2 (see in particular FIG Fig. 2 ), which, in particular, the Fig. 3a to 3c can be seen, a pump cylinder 11 which is connected to the canister 3 and its narrow side 9 and is arranged on this, optionally also of the same material and / or is integrally connected thereto.
- a piston 12 of the cylinder-piston pump 10 is displaceably guided, for which purpose the piston is connected to a piston rod 13 designed here as a threaded rod.
- the piston rod 13 cooperates with a spindle nut not shown in detail a piston actuator 14, wherein the piston actuator 14 and whose housing has a connecting flange 15, by means of several not shown screwed connections with an associated flange portion of the upper end of the pump cylinder 11 is fixedly connected.
- the piston actuator 14 may for example be formed by a stepper motor which drives the spindle nut not shown here in one or the other direction, whereby the piston rod 13 and thus the piston 12 can be displaced up or down in the pump cylinder 11 accordingly.
- the control of this stepping motor takes place For example, via the arranged on the outside of the pump cylinder 11 and here only extremely schematically and by way of example illustrated control device 16 (FIG. Fig. 2 ).
- a sliding block 17 is further arranged, which is slidably guided and received in a formed on the narrow side 9 of the canister 3 guide groove 18.
- the guide groove 18 is here formed by two projecting away from the narrow side 9 and stiffened by ribs 19 guide walls 20, 21. These guide walls 20, 21 can pass directly into a housing of the piston actuator 14 or else be formed by separate components that are not connected to the piston actuator 14 of the same material.
- At one of the piston actuator 14 opposite end portion of the pump cylinder 11 is here exemplified and preferably a 4/3-way valve arranged as a multi-way valve 22, in such a way that the pump cylinder 11 with a lower axis in the lower direction free end portion directly to a valve housing 23 of the multi-way valve 22 connects.
- the pump cylinder 11 preferably connects to the valve housing 23 of the multi-way valve 22 that the piston 12 receiving cylinder cavity or cylinder interior of the pump cylinder 11 directly and directly, that is, in particular from the Figure 3c and 5 can be seen, without hose and / or pipe connection (s), in the valve housing 23 and in the valve-housing element receiving the valve shut-off passes.
- valve housing 23 When viewed in the vertical axis direction downwards, the valve housing 23 is further adjoined by a valve actuating device 24.
- a valve actuating device 24 This, for example, an actuator having valve actuator 24 has a Anschraubflansch 25 which is associated with a plurality of circumferentially around the valve housing 23 around and spaced apart screw domes 26 such that the valve actuator 24 by means of several not shown here mounting screws through the Screw-on flange 25 into the Screw dome 26 are screwed to connect the valve actuator 24 and its housing fixed to the valve housing 23.
- valve actuator 24 is also again preferably via the control device 16, which in turn is controlled by the program controlled by the control computer 8.
- the cylinder-piston pump 10 or its pump cylinder 11 together with associated piston actuator 14 and associated multiway valve 22 with associated valve actuator 24 are thus essentially columnar and elongated or straight arranged one behind the other on the narrow side 9 of the canister 3, so that an overall extremely compact construction of the canister 3 together with the components just described results, which in turn, as a whole, as in Fig. 1 shown, leads to a compact design of the Farbdispensers 1.
- Such a compactly constructed canister 3 together with its entire components can be used in a simple manner in the color dispenser 1 and be coupled there, for example, electronically or via the valve-side hose connection 27 with the Dosierkopftechnik 2 flow connected. This results in a total of short flow paths with little hose and pipe connections, in addition, a quick replacement of the canisters 3 is ensured.
- the multi-way valve 22 is constructed as follows:
- valve housing 23 In the valve housing 23 ( Fig. 5 ) are exemplary here and preferably three, different flow paths associated with orifices 28, 29 and 30 are provided, which are covered with the interposition of a sealing element 31 of a first fixed orifice plate 32, the mouth openings 28 to 30 associated with and aligned with these recesses 33 to 35 having.
- This stationary perforated disc 32 is made of a ceramic material, for example.
- a rotatable perforated disc 36 for example, also made of a ceramic material is arranged, which rests in a planar abutment connection on the stationary perforated disc 32 and.
- This rotatable perforated disc 36 here has a single disc opening 37, which, as will be explained in more detail below, depending on the valve position in an aligned alignment with the recesses 33 to 35 and thus can be brought to the mouth openings 28 to 30.
- an upper, for example, made of a plastic material cover 38 is provided, which has an annular collar 39 at the outer edge, which engages behind the rotatable perforated disc 36 state, this so that the cover plate 38 and the rotatable perforated disc 36 are rotationally connected ,
- an edge-side projection 40 is provided on the rotatable perforated disc 36, which cooperates with the end faces of the annular collar 39.
- a drive shaft 42 is arranged, in particular integrally formed, which is guided tightly through the two perforated discs 32, 36 and the valve housing 23 and is operatively connected to the valve actuator 24 and its actuator or drive element ,
- the hose connection 27 is formed by a valve housing side flow channel 43, the valve housing side opens into the orifice 28 and thus forms a first flow path.
- two flow channels 44, 45 are formed, which face in the assembled state of the narrow side 9 of the canister 3, wherein the both flow channels 44, 45 valve housing side and on the one hand (flow channel 44) in the mouth opening 30 and on the other (flow channel 45) open into the mouth opening 29.
- 22 different flow paths are formed on the valve housing or the multi-way valve 22.
- a pipe 46 connected which opens in high axis direction opens into a lower Känister Scheme.
- a flow in the channel 45 in the Fig. 2 only shown schematically and dashed piping 47 connected, which is guided in the canister 3 upwards and there opens into an upper canister area.
- rotatable perforated disc 36 is rotated relative to the stationary perforated disc 32, that the disc opening 37 with the recess 33 and thus the mouth opening 30 is aligned and thus in an upward (in the arrow direction) directed displacement of the piston 12 color pigment paste from the canister. 3 is sucked into the pump cylinder 11 (preferably from a lower canister area in the direction of the vertical axis), as shown by the arrow 48. This corresponds to a valve position I.
- the color pigment paste can be pumped back into the canister 3, in particular into the lower canister area (dotted arrow 48 '), whereby, for example, a sediment can be fluidized.
- the rotatable perforated disc 36 can also be transferred into a valve position II ( Fig. 6b ), in which the disc opening 37 with a recess 35 of the stationary perforated disc 32 and thus the mouth opening 28 is aligned, so that according to the arrow 49 and a corresponding downward displacement of the piston 12, the color pigment paste from the pump cylinder 11 can be pumped in the direction of dosing unit 2.
- valve may remain in the valve position II and the piston 12 again be moved upwards accordingly ( Fig. 6c ), whereby possibly in the lines to Dosierkopfiki 2 remaining color pigment paste can be sucked back into the pump cylinder 11 (arrow 50).
- the canister at one in the operating position shown in the vertical direction of the upper canister end a here substantially over the entire container side extending maintenance opening, which is closable with a closure lid 52.
- the closure lid 52 overlaps with edge-side tabs 53 the opening edge region and is releasably latched to wall-side locking lugs 54 from opposite longitudinal sides 55 of the canister 3.
- the canister 3 itself may be made of a plastic material, for example, as well as the valve housing and the housings of the actuators.
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Description
Die Erfindung betrifft einen Kanister für pumpfähige Medien, insbesondere für Farbpigmentpräparationen, nach dem Oberbegriff des Anspruchs 1.The invention relates to a canister for pumpable media, in particular for color pigment preparations, according to the preamble of
Derartige Kanister oder Behälter finden zum Beispiel bei der Ausgabe von Farben in sogenannten Farbdispensern Verwendung. In diesem 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 Kanister untergebracht sind. Diese Kanister sind über fluidleitende Verbindungen mit einer Pumpvorrichtung verbunden, die wiederum mit einer Dosiereinheit strömungstechnisch verbunden ist. Mittels eines derartigen Farbdispensers können somit vorgegebene Farbtöne reproduzierbar zusammengemischt werden, wobei die einzelnen Bauteile konkret mittels einer Rechnereinheit angesteuert werden, in der verschiedene Farbzusammenstellungen gespeichert sind. Die Ausgabe des Mediums erfolgt regelmäßig über einen Dosierkopf der Dosiereinheit, der meist mehrere Ausgabedüsen zur Zudosierung in ein, eine Basis, zum Beispiel eine weiße oder transparente Farbe, enthaltendes Behältnis aufweist.Such canisters or containers are used, for example, in the dispensing of paints in so-called paint dispensers. In this a large number of different shades is reproducibly composed of a much smaller number of primary colors (color pigment preparations). Such paint dispensers are well known in the art and regularly comprise a housing in which various, the color pigment preparations containing canisters are housed. These canisters are connected via fluid-conducting connections with a pumping device, which in turn is fluidically connected to a metering unit. By means of such a Farbdispensers thus predetermined shades can be reproducibly mixed together, the individual components are specifically controlled by means of a computer unit in which different color schemes are stored. The medium is dispensed regularly via a dosing head of the dosing unit, which usually has a plurality of dispensing nozzles for dosing into a container containing a base, for example a white or transparent paint.
Ein derartiger Farbdispenser ist beispielsweise aus der
Konkret sind hierzu die Pumpen mit Paaren von Kettenrädern verbunden, um ein in einer Reihe liegendes Antriebssystem zu bilden. Die Pumpen weisen eine Einlassöffnung und eine Auslassöffnung auf, die über Schlauchleitungen zum einen mit einem zugeordneten Kanister und zum anderen mit einem beabstandet oberhalb der Pumpen und der Kanister angeordneten Abgabeventil strömungstechnisch verbunden sind. Vom Abgabeventil führt weiter eine weitere Schlauchleitung zu dem Kanister. Mit einem derartigen Aufbau kann über die Pumpe und die entsprechend zugeordneten Schlauchleitungen Fluid über das Abgabeventil zu einem Dosierkopf geführt werden. Ferner kann das Abgabeventil aber auch so geschaltet bzw. gesteuert werden, dass das Fluid über die Schlauchleitungen und das Abgabeventil in einem Kreislauf gepumpt wird. Dieses Rezirkulieren soll das Absetzen des Fluids in den verschiedenen Leitungen sowie in den Kanistern vermeiden. Der Aufbau ist hier insbesondere im Hinblick auf die Pumpenanordnung an einer Grundplatte und die Schlauchführung bzw. Verrohrung relativ aufwendig und wartungsintensiv.Specifically, for this purpose, the pumps are connected to pairs of sprockets to form an in-line drive system. The pumps have an inlet opening and an outlet opening, which are fluidically connected via hose lines to an associated canister and to a dispensing valve arranged at a distance above the pumps and the canisters. From the dispensing valve continues to lead another hose to the canister. With such a construction, fluid can be passed via the dispensing valve to a dosing head via the pump and the correspondingly assigned hose lines. Furthermore, however, the dispensing valve can also be switched or controlled so that the fluid is pumped via the hose lines and the dispensing valve in a circuit. This recirculation is to avoid the settling of the fluid in the various lines and in the canisters. The structure is relatively complex and maintenance-intensive here, in particular with regard to the pump arrangement on a base plate and the hose guide or piping.
Ein vom Prinzip her ähnlicher Aufbau ist auch aus der
Das Dokument
Weiter ist aus der
Sämtliche zuvor gewürdigten Druckschriften des Standes der Technik zeigen somit Kanister- bzw. Behälterlösungen, die zusammen mit einer davon beabstandet angeordneten Pumpe und einem ebenfalls beabstandet angeordneten Dosierventil relativ viel Bauraum benötigen, was insgesamt zu großvolumigen und damit teuren Anlagen führt.All of the prior art documents cited above thus show canister or container solutions which, together with a pump arranged at a distance therefrom and a likewise spaced metering valve, require a relatively large amount of installation space, which leads to large-volume and therefore expensive installations.
Demgegenüber ist es Aufgabe der vorliegenden Erfindung, einen Kanister für pumpfähige Medien, insbesondere für Farbpigmentpräparationen, zur Verfügung zu stellen, mittels dem sowohl die Abgabe des pumpfähigen Mediums aus dem Kanister als auch ein Rezirkulieren des pumpfähigen Mediums auf einfache und funktionssichere sowie platzsparende und damit kompakte Weise bewerkstelligt werden kann.In contrast, it is an object of the present invention to provide a canister for pumpable media, in particular for color pigment preparations, by means of both the delivery of the pumpable medium from the canister and a recirculation of the pumpable medium to simple and reliable and space-saving and thus compact Way can be accomplished.
Diese Aufgabe wird gelöst mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen sind Gegenstand der darauf rückbezogenen Unteransprüche.This object is achieved with the features of
Gemäß Anspruch 1 wird ein Kanister (bzw. eine Dosiereinrichtung) für pumpfähige Medien, insbesondere für Farbpigmentpräparationen, vorgeschlagen, mit einer dem Kanister zugeordneten Fördereinrichtung, mittels der ein im Kanister aufgenommenes pumpfähiges Medium über eine Ventileinrichtung gesteuert aus dem Kanister abziehbar ist, wobei die Ventileinrichtung zudem so ausgebildet und ansteuerbar ist, dass zumindest ein Teil einer aus dem Kanister abgezogenen Menge an pumpfähigem Medium wieder in den Kanister zurückförderbar ist. Erfindungsgemäß wird vorgeschlagen, dass die Fördereinrichtung durch eine am Kanister angeordnete Pumpe mit einem Pumpengehäuse gebildet ist, wobei die als Mehrwegeventil ausgebildete Ventileinrichtung mit dem Pumpengehäuse verbunden ist, insbesondere das Pumpengehäuse unmittelbar an ein Ventilgehäuse des Mehrwegeventils anschließt.According to
Mit einem derartigen erfindungsgemäßen Aufbau, bei dem die Pumpe mitsamt Mehrwegeventil unmittelbar am Kanister angeordnet ist, lässt sich ein besonders kompakter und bauraumsparender Kanisteraufbau erzielen, was sich zudem auch vorteilhaft auf eine insgesamt kompakte Ausbildung eines Farbdispensers auswirkt.With such a structure according to the invention, in which the pump is arranged together with multi-way valve directly on the canister, a particularly compact and space-saving canister construction can be achieved, which also also has an advantageous effect on a total compact design of a Farbdispensers.
Die kompakte Kanister-Bauweise mit dort angeordneter Pumpe und Mehrwegeventil bewirkt zudem, dass nur relativ wenig Schlauch- bzw. Rohrleitungsverbindungen notwendig sind, so dass durchaus ein insgesamt wenig bauteilintensiver und damit preiswerter Aufbau zur Verfügung gestellt wird.The compact canister construction with there arranged pump and multi-way valve also causes only relatively little hose or pipe connections are necessary, so that quite a total of less component-intensive and thus inexpensive construction is provided.
Durch die kompakte Anordnung der Bauteile werden zudem kurze Fluidwege möglich, was sich vorteilhaft auf den Abgabeprozess der pumpfähigen Medien auswirkt. Zudem können auf einfache Weise auch große Durchlassquerschnitte realisiert werden, so dass die Anordnung insgesamt weniger zum Verstopfen neigt, als dies bei Aufbauten mit zahlreichen und vor allem langen Schlauch- und Rohrleitungsverbindungen der Fall ist.The compact arrangement of the components also short fluid paths are possible, which has an advantageous effect on the delivery process of the pumpable media. In addition, large passage cross-sections can be realized in a simple manner, so that the arrangement tends to be less clogging overall, as is the case with structures with numerous and especially long hose and pipe connections.
Die Anordnung der Pumpe am Kanister, die unmittelbare Anbindung des Mehrwegeventils an dem Pumpengehäuse und weiter auch die Anbringungsmöglichkeit einer Steuerungselektronik am Kanister, zum Beispiel am Pumpengehäuse, hat weiter den Vorteil, dass ein Austausch des jeweiligen Kanisters schnell und unkompliziert erfolgen kann. Denn die zugehörige Steuerungselektronik kann bei einem derartigen Aufbau einfach und schnell abgesteckt werden und dann die Kanistereinheit vom Farbdispenser entnommen werden.The arrangement of the pump on the canister, the direct connection of the multi-way valve to the pump housing and also the attachment possibility of control electronics on the canister, for example on the pump housing, has the further advantage that an exchange of the respective canisters can be done quickly and easily. Because the associated control electronics can be staked easily and quickly in such a structure and then the canister unit are removed from the color dispenser.
Die Begrifflichkeit Kanister ist hier zudem in einem umfassenden Sinne zu verstehen. Wie die zuvor und auch nachstehend gemachten Ausführungen zeigen bzw. zeigen werden, handelt es sich bei dem erfindungsgemäßen Kanister um eine Dosiereinrichtung für den Einsatz in einer Dosiervorrichtung, wie zum Beispiel einem Farbdispenser, wobei in der Dosiereinrichtung das jeweilige pumpfähige Medium, insbesondere eine Farbpigmentpräparation, aufgenommen ist und aus der Dosiereinrichtung zu vorgegebenen Zeiten eine definierte Menge des pumpfähigen Mediums abgezogen wird, insbesondere mittels der Dosiervorrichtung abgezogen wird. Die Begrifflichkeit Kanister stellt somit hier ausdrücklich ein Synonym für die Begrifflichkeit Dosiereinrichtung dar.The term canister is also to be understood here in a comprehensive sense. As the statements made above and also below show, the canister according to the invention is a metering device for use in a metering device, such as a paint dispenser, wherein the respective pumpable medium, in particular a color pigment preparation, in the metering device, is received and withdrawn from the metering device at predetermined times, a defined amount of the pumpable medium, in particular by means of the metering device is withdrawn. The term canister thus expressly represents a synonym for the term dosing device.
Die Pumpe kann zum Beispiel durch eine Schlauch- bzw. Balgpumpe gebildet sein. Besonders bevorzugt ist jedoch eine konkrete Ausgestaltung, bei der die Pumpe durch eine am Kanister angeordnete Zylinder-Kolben-Pumpe mit einem Pumpenzylinder als Pumpengehäuse und einem darin verschiebbar geführten Kolben gebildet ist, wobei das Mehrwegeventil mit dem Pumpenzylinder verbunden ist, insbesondere der Pumpenzylinder unmittelbar an ein Ventilgehäuse des Mehrwegeventils anschließt. Eine derartige Zylinder-Kolben-Pumpe ermöglicht auf baulich einfache, preiswerte sowie funktionssichere Art und Weise eine Dosierung mit sehr hoher Präzision. Zudem zeichnet sich eine derartige Zylinder-Kolben-Pumpe durch eine hohe Lebensdauer aus.The pump can be formed for example by a hose or bellows pump. However, particularly preferred is a specific embodiment in which the Pump is formed by a arranged on the canister cylinder-piston pump with a pump cylinder as a pump housing and a piston displaceably guided therein, wherein the multi-way valve is connected to the pump cylinder, in particular the pump cylinder directly connects to a valve housing of the multi-way valve. Such a cylinder-piston pump allows for structurally simple, inexpensive and functionally reliable way a dosage with very high precision. In addition, such a cylinder-piston pump is characterized by a long service life.
Der unmittelbare Anschluss des Pumpengehäuses an ein Ventilgehäuse des Mehrwegeventils kann grundsätzlich auf unterschiedliche Art und Weise erfolgen. Besonders bevorzugt ist eine Ausgestaltung, bei der ein freier Endbereich des Pumpengehäuses, insbesondere eines Pumpenzylinders einer Zylinder-Kolben-Pumpe, dergestalt an das Ventilgehäuse anschließt, insbesondere dort mittels einer Aufsteck- und/oder Aufsetzverbindung aufgesteckt und/oder aufgesetzt ist, dass das Pumpengehäuse (zum Beispiel ein einen Kolben einer Zylinder-Kolben-Pumpe aufnehmender Zylinderhohlraum eines Pumpenzylinders) unmittelbar und direkt, insbesondere ohne Schlauch- und/oder Rohrleitungsverbindung(en), an das Ventilgehäuse anschließt, insbesondere in den das wenigstens eine verlagerbare Absperrelement des Mehrwegeventils aufnehmenden Ventilgehäuse-Innenraum übergeht.The direct connection of the pump housing to a valve housing of the multi-way valve can basically be done in different ways. Particularly preferred is an embodiment in which a free end portion of the pump housing, in particular a pump cylinder of a cylinder-piston pump, connected in such a form to the valve housing, in particular plugged there by means of a Aufsteck- and / or Aufsetzverbindung and / or is placed, that the pump housing (For example, a piston of a cylinder-piston pump receiving cylinder cavity of a pump cylinder) directly and directly, in particular without hose and / or pipe connection (s), connects to the valve housing, in particular in the at least one displaceable shut-off of the multi-way valve receiving valve housing Interior passes over.
Das Mehrwegeventil kann grundsätzlich auf unterschiedliche Art und Weise aufgebaut sein. Besonders bevorzugt ist eine Ausgestaltung, bei der das Mehrwegeventil so aufgebaut und/oder schaltbar ist, dass in wenigstens einer Schaltstellung eine Strömungsverbindung zwischen dem Kanister und dem Pumpengehäuse hergestellt ist, in der, zum Beispiel bei einer von dem Mehrwegeventil weggerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium aus dem Kanister in das Pumpengehäuse saugbar ist und in der, zum Beispiel bei einer auf das Mehrwegventil zugerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium in den Kanister, zum Beispiel von dem Pumpengehäuse in den Kanister pumpbar ist. In wenigstens einer weiteren Schaltstellung ist eine Strömungsverbindung zwischen dem Pumpengehäuse und einer von dem Mehrwegventil wegführenden Leitung hergestellt, in der, zum Beispiel bei einer auf das Mehrwegventil zugerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium in die wegführende Leitung pumpbar ist und in der, zum Beispiel bei einer von dem Mehrwegeventil weggerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium aus der wegführenden Leitung in den Pumpenzylinder (rück)saugbar ist. Durch den unmittelbaren Anschluss des Pumpengehäuses, zum Beispiel eines Pumpenzylinders einer Zylinder-Kolben-Pumpe, an das Ventilgehäuse des Mehrwegeventils wird somit eine vorteilhafte bauliche Einheit geschaffen, bei der ein Teilbereich des Pumpengehäuses somit gleichzeitig Ventilfunktion übernimmt und zur Zwischenspeicherung bzw. Verteilung des Fluids auf die entsprechenden Strömungswege dient. Wie bereits zuvor dargestellt und ausgeführt, kann mit einem derartigen Aufbau ein besonders vorteilhafter kompakter Kanisteraufbau mitsamt Pumpanordnung und Ventilanordnung zur Verfügung gestellt werden, der zu einem insgesamt kompakten Aufbau des Farbdispenser beiträgt. Weiter ergeben sich hierdurch vielfältigste Schaltungsmöglichkeiten des Mehrwegeventils mit kurzen Strömungswegen, was die konstruktive Variabilität und Flexibilität wesentlich erhöht.The multiway valve can basically be constructed in different ways. Particularly preferred is an embodiment in which the multi-way valve is constructed and / or switchable, that in at least one switching position, a flow connection between the canister and the pump housing is made, in, for example, in a direction away from the multi-way valve displacement of a piston of a cylinder Piston pump, pumpable medium from the canister into the pump housing is sucked and in, for example, in a directed to the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium in the canister, for example, from the pump housing in the Canister is pumpable. In at least one other switching position is a flow connection between the pump housing and one of the Directional return line leading produced, in which, for example, in a directed to the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium in the lead-away line is pumped and in, for example, in a direction away from the multi-way valve displacement of a piston Cylinder-piston pump, pumpable medium from the outgoing line in the pump cylinder (back) is sucked. Due to the direct connection of the pump housing, for example a pump cylinder of a cylinder-piston pump, to the valve housing of the multi-way valve thus an advantageous structural unit is created in which a portion of the pump housing thus simultaneously performs valve function and for intermediate storage or distribution of the fluid the corresponding flow paths is used. As already shown and executed, with such a construction, a particularly advantageous compact canister construction together with pumping arrangement and valve arrangement can be made available, which contributes to an overall compact construction of the paint dispenser. Furthermore, this results in a wide variety of circuit options of the multi-way valve with short flow paths, which significantly increases the structural variability and flexibility.
Gemäß einer hierzu besonders bevorzugten Ausgestaltung sind zwischen dem Kanister und dem Mehrwegeventil mehrere, insbesondere zwei, voneinander unabhängige Strömungswege vorgesehen, denen unterschiedliche Schaltstellungen des Mehrwegeventils zur Herstellung einer Strömungsverbindung zwischen dem Pumpengehäuse und dem jeweiligen Strömungsweg zugeordnet sind. Mit derartigen mehreren, insbesondere zwei voneinander unabhängigen Strömungswegen zwischen dem Kanister und dem Mehrwegeventil wird vorteilhaft erreicht, dass zum Beispiel beim Rückpumpen und Absaugen bzw. im Rezirkulationsbetrieb unterschiedliche Strömungswege zur Verfügung stehen, es also zu keinen unerwünschten Beeinflussungen des jeweiligen gewünschten Strömungsweges durch eventuell verbleibende Rückstände oder Medienströme in dem jeweils anderen Strömungsweg kommen kann. Eine derartige erfindungsgemäße Ausgestaltung erhöht somit die Funktionssicherheit wesentlich und trägt dazu bei, dass die Wartungsintervalle bzw. die Lebensdauer der Kanister wesentlich erhöht wird.According to a particularly preferred embodiment, a plurality of, in particular two, mutually independent flow paths are provided between the canister and the multi-way valve, which are assigned to different switching positions of the multi-way valve for establishing a flow connection between the pump housing and the respective flow path. With such a plurality, in particular two independent flow paths between the canister and the multi-way valve is advantageously achieved that, for example, during return pumping and suction or recirculation different flow paths are available, so there is no undesirable effects of the respective desired flow path by any remaining residues or media streams can come in the other flow path. Such a configuration according to the invention thus substantially increases the reliability and contributes to the maintenance intervals or the lifetime of the canisters being substantially increased.
Gemäß einer konkreten Ausgestaltung können insbesondere zwei voneinander unabhängige Strömungswege zwischen dem Kanister und dem Mehrwegeventil vorgesehen sein, denen unterschiedliche Schaltstellungen des Mehrwegeventils dergestalt zugeordnet werden können, dass das Mehrwegeventil in einer ersten Schaltstellung einen ersten Strömungsweg zwischen Kanister und Pumpengehäuse ausbildet, über den, zum Beispiel bei einer von dem Mehrwegeventil weggerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium aus einem ersten Kanisterbereich, insbesondere aus einem in Hochachsenrichtung unteren Kanisterbereich, in das Pumpengehäuse saugbar ist. Selbstverständlich kann dieser Strömungsweg aber auch so ausgelegt sein, dass über diesen, insbesondere bei einer auf das Mehrwegeventil zu gerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium in den bzw. einen ersten Kanisterbereich, insbesondere in einen in Hochachsenrichtung unteren Kanisterbereich, pumpbar ist, insbesondere aus dem Pumpengehäuse zurück in den ersten Kanisterbereich, pumpbar ist, weil dadurch zum Beispiel eine gute Durchmischung des ersten Kanisterbereichs erzielt werden kann.According to a specific embodiment in particular two independent flow paths between the canister and the multi-way valve may be provided, which can be assigned such different switching positions of the multi-way valve that the multi-way valve in a first switching position forms a first flow path between the canister and the pump housing, over, for example in a displacement of a piston of a cylinder-piston pump directed away from the multi-way valve, pumpable medium from a first canister region, in particular from a lower canister region in the vertical axis direction, can be sucked into the pump housing. Of course, this flow path can also be designed so that via this, in particular in a directed to the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium in the or a first canister area, in particular in a lower axis in the high-axis direction canister area, is pumpable, in particular from the pump housing back into the first canister area, is pumpable, because this way, for example, a good mixing of the first canister area can be achieved.
Weiter kann das Mehrwegeventil in einer zweiten, gegenüber der ersten Schaltstellung unterschiedlichen Schaltstellung einen zweiten Strömungsweg ausbilden, über den, insbesondere im Anschluss an ein Abpumpen aus dem Kanister über den vorstehend beschriebenen ersten Strömungsweg bzw. insbesondere bei einer auf das Mehrwegeventil zugerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium in einen zweiten, gegenüber dem ersten Kanisterbereich unterschiedlichen und/oder von diesem beabstandeten Kanisterbereich, insbesondere in einen in Hochachsenrichtung oberen Kanisterbereich, pumpbar ist, insbesondere aus dem Pumpengehäuse in den zweiten Kanisterbereich pumpbar ist. Dadurch kann insbesondere bei einem Rezirkulationsbetrieb auf einfache Weise ein funktionssicheres Durchmischen des gesamten pumpfähigen Mediums im Kanister sichergestellt werden. Weiter ist es aber auch in Verbindung mit diesem zweiten Strömungsweg möglich, insbesondere bei einer von dem Mehrwegeventil weggerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, pumpfähiges Medium aus einem zweiten, gegenüber dem ersten Kanisterbereich unterschiedlichen und/oder von diesem beabstarideten Kanisterbereich, insbesondere aus einem in Hochachsenrichtung oberen Kanisterbereich, in das Pumpengehäuse zu saugen, zum Beispiel um einen umgekehrten Rezirkulationsbetrieb von oben nach unten durchzuführen, falls dies gewünscht sein sollte. Es gibt somit insgesamt vielfältigste Ansteuermöglichkeiten für einen derartigen Aufbau eines Mehrwegeventils.Furthermore, the multi-way valve can form a second flow path in a second switching position different from the first switching position, via which, in particular following pumping out of the canister via the first flow path described above, or in particular with a relocation of a piston to the multiway valve Cylinder-piston pump, pumpable medium in a second, opposite the first canister area and / or spaced from this canister area, in particular in a Hochachsenrichtung upper canister area, is pumpable, in particular pumpable from the pump housing into the second canister area. As a result, a functionally reliable mixing of the entire pumpable medium in the canister can be ensured in a simple manner, in particular in a recirculation operation. But it is also possible in connection with this second flow path, in particular in a direction away from the multi-way valve displacement of a piston of a cylinder-piston pump, pumpable medium from a second, relative to the first canister area different and / or from this beabstarideten canister area, in particular from a high-axis direction upper canister area to suck in the pump housing, for example, to perform a reverse recirculation operation from top to bottom, if so desired. There are thus a total of diverse drive options for such a construction of a multi-way valve.
Der erste Strömungsweg kann dabei gemäß einer bevorzugten Ausgestaltung durch einen im Wesentlichen ventilgehäuseseitig sowie gegebenenfalls auch kanisterseitig ausgebildeten Strömungskanal ausgebildet sein (auch eine kurze Schlauchleitungs- bzw. Rohrleitungsverbindung zwischen ventilgehäuseseitigem und kanisterseitigem Strömungskanalbereich ist grundsätzlich möglich), der bezogen auf eine Kanister-Betriebsstellung, zum Beispiel in einen in Hochachsenrichtung gesehen unteren Kanisterbereich einmündet. Alternativ oder zusätzlich kann der zweite Strömungsweg durch einen ventilgehäuseseitig und weiter kanisterseitig ausgebildeten Strömungskanal (auch hier ist eine kurze Schlauchleitungs- bzw. Rohrleitungsverbindung zwischen ventilgehäuseseitigem und kanisterseitigem Strömungskanalbereich wiederum grundsätzlich möglich) ausgebildet sein. Dieser kann zum Beispiel, bezogen auf eine Kanister-Betriebsstellung, in einen in Hochachsenrichtung gesehen oberen Kanisterbereich münden. Mit einer derartigen konkreten Ausgestaltung kann bei einem Rezirkulationsbetrieb auf einfache Weise ein funktionssicheres Durchmischen des pumpfähigen Mediums im Kanister sichergestellt werden.The first flow path can be formed according to a preferred embodiment by a substantially valve housing side and possibly also canister side formed flow channel (a short Schlauchleitungs- or pipe connection between valve housing side and kanisterseitigem flow channel area is basically possible), based on a canister operating position, for Example opens in a seen in the vertical axis lower canister area. Alternatively or additionally, the second flow path can be formed by a flow channel formed on the valve housing side and further on the side of the canister (again, a short hose line or pipe connection between the valve housing side and the canister side flow channel region is in principle possible). This can, for example, open, based on a canister operating position, in an upper canister area seen in the vertical axis direction. With such a specific embodiment, in a recirculation operation, a functionally reliable mixing of the pumpable medium in the canister can be ensured in a simple manner.
Gemäß einer hierzu besonders bevorzugten Ausgestaltung weist das Mehrwegeventil, das zum Beispiel ein 4/3-Wegeventil ist, einen Aufbau auf, bei dem in einer weiteren, insbesondere dritten Schaltungstellung die Strömungsverbindung zwischen dem Pumpengehäuse und der von dem Mehrwegeventil wegführenden Leitung hergestellt ist. Mit einem derartigen Mehrwegeventil kann somit auf baulich einfache Weise, und vor allem auf baulich kompakte Weise, die gewünschte Strömungsführung in Verbindung mit einer Pumpe, die unmittelbar am Kanister angeordnet ist, realisiert werden. Grundsätzlich kann das Mehrwegeventil aber auch zusätzlich noch eine weitere, zum Beispiel vierte Ventilstellung besitzen, zum Beispiel eine Ruhestellung, in der überhaupt keine Strömungswege offen sind und das Ventil somit abgesperrt ist.According to a particularly preferred embodiment, the multi-way valve, which is for example a 4/3-way valve, a structure in which in a further, in particular third circuit position, the flow connection between the pump housing and the direction away from the multi-way valve line is made. With such a multi-way valve can thus be realized in a structurally simple manner, and especially in a structurally compact manner, the desired flow guidance in conjunction with a pump which is located directly on the canister. In principle, however, the multi-way valve can also have another, For example, have a fourth valve position, for example, a rest position in which no flow paths are open and the valve is thus shut off.
Das Mehrwegeventil selbst weist eine Mehrzahl von, unterschiedlichen Strömungswegen zugeordneten Mündungsöffnungen im Ventilgehäuse auf. Diesen Mündungsöffnungen ist eine diese abdeckende und/oder verschließende sowie relativ zu diesen verdrehbare Lochscheibe mit wenigstens einer, vorzugsweise mit einer einzigen, Scheibenöffnung zugeordnet, wobei diese wenigstens eine Scheibenöffnung mittelbar oder unmittelbar in das Pumpengehäuse mündet. Mit einem derartigen Aufbau wird auf funktionssichere Weise erreicht, dass die wenigstens eine Scheibenöffnung bei einer Lochscheibenverdrehung in eine Flucht mit einer der Mündungsöffnungen bringbar und damit eine Strömungsverbindung zwischen dem Pumpengehäuse einerseits und dem, der jeweiligen Mündungsöffnung zugeordneten Strömungsweg andererseits auf einfache und kompakte Weise herstellbar ist.The multi-way valve itself has a plurality of, different flow paths associated orifices in the valve housing. These orifices are a covering and / or closing and rotatable relative to these perforated disc with at least one, preferably associated with a single disc opening, which opens at least one disc opening directly or indirectly into the pump housing. With such a structure is achieved in a functionally reliable manner that the at least one disc opening in a perforated disc rotation in alignment with one of the mouth openings brought and thus a flow connection between the pump housing on the one hand and, the respective orifice associated flow path on the other hand in a simple and compact manner can be produced ,
Die verdrehbare Lochscheibe weist zu deren Verdrehung vorzugsweise eine von dieser abragende Antriebsachse auf oder ist mit einer solchen Antriebsachse gekoppelt und/oder verbunden. Das heißt, dass die Antriebsachse entweder materialeinheitlich und/oder einstückig mit der Lochscheibe verbunden sein kann oder aber auch durch ein separates Bauteil ausgebildet sein kann, die zum Beispiel mittels der Lochscheibe mittels einer Formschluss- und/oder Kraftschlussverbindung -verbunden sein kann. Auch eine stoffschlüssige Anbindung wäre grundsätzlich selbstverständlich jederzeit möglich. Diese Antriebsachse ist dann durch das Ventilgehäuse hindurch nach außen geführt und dort mit einer Ventil-Betätigungseinrichtung gekoppelt oder mit einer Ventil-Betätigungseinrichtung koppelbar. Das heißt, dass die Antriebsachse entweder unmittelbarer Bestandteil einer am Ventilgehäuse angeordneten Betätigungseinrichtung sein kann, dass aber alternativ auch die Antriebsachse als frei nach außen ragende Antriebsachse ausgebildet sein kann, die zum Beispiel mittels einer beweglichen bzw. verlagerbaren Betätigungseinrichtung gekoppelt werden kann, um die Antriebsachse anzutreiben.The rotatable perforated disk preferably has a drive axle protruding therefrom for its rotation or is coupled and / or connected to such a drive axle. This means that the drive axle can either be connected in the same material and / or in one piece with the perforated disk or can also be formed by a separate component which can be connected, for example, by means of the perforated disk by means of a form-locking and / or frictional connection. A cohesive connection would, of course, always be possible at any time. This drive axle is then guided through the valve housing to the outside and there coupled to a valve actuator or coupled with a valve actuator. This means that the drive axle can either be an immediate component of an actuating device arranged on the valve housing, but alternatively also the drive axle can be designed as a freely outwardly projecting drive axle, which can be coupled to the drive axle, for example by means of a movable or displaceable actuating device drive.
Zwischen dem ventilgehäuseseitig ausgebildeten Mündungsöffnungen und der verdrehbaren Lochscheibe kann gemäß einer weiteren bevorzugten konkreten Ausgestaltung zudem eine weitere, ortsfeste Lochscheibe vorgesehen sein, die den Mündungsöffnungen zugeordnete Ausnehmungen aufweist und auf der die verdrehbare Lochscheibe in einer flächigen Anlageverbindung relativ dazu verdrehbar bzw. dicht aufliegt, wobei die Antriebsachse der verdrehbaren Lochscheibe in diesem Fall bevorzugt durch eine Achsenausnehmung der ortsfesten Lochscheibe hindurchgeführt ist. Bei einem derartigen Aufbau können dann zum Beispiel wenigstens die einander zugeordneten Lochscheibenseiten bzw. -flächen der ortsfesten und verdrehbaren Lochscheibe aus einem sehr gute Gleiteigenschaften aufweisenden Material bzw. mit einer entsprechenden Beschichtung versehen bzw. ausgebildet sein, was sich vorteilhaft auf die Leichtgängigkeit und Funktionssicherheit des Mehrwegeventils auswirkt. Besonders bevorzugt ist hier die Ausbildung von sowohl der ortsfesten Lochscheibe als auch der verdrehbaren Lochscheibe aus einem Keramikmaterial.According to a further preferred specific embodiment, a further, stationary perforated disc can be provided between the valve housing side formed orifices and the rotatable perforated disc having recesses associated with the orifices and on which the rotatable perforated disc in a planar abutment connection rotates or tightly rests relative thereto the drive axis of the rotatable perforated disc in this case is preferably passed through an axis recess of the stationary perforated disc. In such a structure, for example, at least the mutually associated perforated disc sides or surfaces of the stationary and rotatable perforated disc from a very good sliding properties having material or provided with a corresponding coating or be formed, which is advantageous to the ease and reliability of Multiway valve affects. Particularly preferred here is the formation of both the stationary perforated disc and the rotatable perforated disc of a ceramic material.
Wie bereits zuvor angedeutet, ist es insbesondere für einen kompakten, kleinbauenden Aufbau von Vorteil, dass die Betätigungseinrichtung an dem Kanister und/oder an dem Ventilgehäuse angeordnet ist. Alternativ kann die Betätigungseinrichtung aber auch als verlagerbare Einheit ausgebildet sein, die, insbesondere bei mehreren Kanistern, mit der ventilgehäuseseitig gelagerten Antriebsachse in eine Wirkverbindung gebracht werden kann.As already indicated above, it is advantageous, in particular for a compact, physically small construction, that the actuating device is arranged on the canister and / or on the valve housing. Alternatively, however, the actuating device can also be designed as a displaceable unit which, in particular in the case of several canisters, can be brought into operative connection with the drive axle mounted on the valve housing side.
Gemäß der Erfindung ist die verdrehbare Lochscheibe weiteilig ausgebildet. Sie weist ein die Antriebsachse tragendes erstes Bauteil auf, das dem Pumpengehäuse zugewandt ist und Sie weist ein demgegenüber unteres, den Mündungsöffnungen zugewandtes und von der Antriebsachse durchgriffenes zweites Bauteil auf, das mit dem ersten Bauteil verdrehfest verbunden, zum Beispiel durch eine Formschlussverbindung verdrehfest verbunden ist. Bei einem derartigen Aufbau sind die beiden Bauteile zudem bevorzugt aus unterschiedlichen Materialien hergestellt, zum Beispiel das untere, zweite Bauteil aus einem Keramikwerkstoff hergestellt, während das demgegenüber, obere erste Bauteil dann aus einem preiswerten Kunststoffmaterial ausgebildet sein. Mit einem derartigen mehrteiligen Aufbau wird auf einfache Weise zum einem der Leichtgängigkeit des Ventils beim Verdrehen der Lochscheibe Rechnung getragen und zum anderen eine geeignete Anschlussfläche in Richtung Pumpengehäuse zur Verfügung gestellt.According to the invention, the rotatable perforated disc is formed in a wide part. It has a drive axle supporting the first component, which faces the pump housing and has a lower, the orifices facing and penetrated by the drive axle second component, which is rotationally connected to the first component, for example, rotationally connected by a positive connection , In such a structure, the two components are also preferably made of different materials, for example, the lower, second component made of a ceramic material, while the contrast, upper first component may then be formed of a low-cost plastic material. With such a multi-part construction is a simple way to one of the ease of movement of the valve during rotation of the perforated disc taken into account and on the other hand provided a suitable pad in the direction of the pump housing.
Eine besonders vorteilhafte, funktionssichere und zu einem kompakten Aufbau beitragende Anordnung der Ventil-Betätigungseinrichtung sieht vor, dass eine Ventil-Betätigungseinrichtung mittelbar oder unmittelbar an dem Kanister angeordnet ist, und zwar bevorzugt dergestalt, am Ventilgehäuse mehrere voneinander beabstandete Schraubdome angeordnet sind, denen jeweils ein betätigungseinrichtungsseitiger Anschraubflanschbereich zugeordnet ist, und zwar bevorzugt dergestalt zugeordnet ist, dass die Betätigungseinrichtung mittels mehrerer durch die Anschraubflanschbereiche hindurch in die Schraubdome einschraubbarer Befestigungsschrauben am Ventilgehäuse festgelegt werden kann.A particularly advantageous, functionally reliable and contributing to a compact structure arrangement of the valve actuator provides that a valve actuator is arranged directly or indirectly on the canister, preferably in such a way, on the valve housing a plurality of spaced apart screw domes are arranged, each having a is associated with the actuating device side Anschraubflanschbereich, and is preferably assigned such that the actuator can be determined by means of several screwed through the Anschraubflanschbereiche in the screw dome mounting screws on the valve housing.
Wie bereits zuvor ausgeführt, ist es für einen kompakt bauenden Aufbau besonders vorteilhaft, wenn die Pumpe, insbesondere deren Pumpengehäuse, sowie das Ventilgehäuse und wenigstens eine Teil der vorhandenen Betätigungseinrichtungen, insbesondere die Ventil-Betätigungseinrichtung bzw. die Pumpen-Betätigungseinrichtung, eine langgestreckte, säulenartige und mit dem Kanister verbundene Baueinheit bilden bzw. diese im Wesentlichen in einer geradlinigen Verlängerung neben - oder hintereinander liegend (je nach Betrachtungsrichtung) am Kanister angeordnet sind. Das heißt mit anderen Worten, dass sich das Ventilgehäuse im Wesentlichen in gerader Verlängerung an das Pumpengehäuse und die Ventil-Betätigungseinrichtung im Wesentlichen in gerader Verlängerung an das Ventilgehäuse und eine Pumpen-Betätigungseinrichtung im wesentlichen in gerader Verlängerung an das Pumpengehäuse anschließen kann, um die gewünschte platzsparende und kompakte Kanisterbauweise mitsamt Pumpengehäuse und Mehrwegeventil ausbilden zu können.As already stated above, it is particularly advantageous for a compact construction, if the pump, in particular the pump housing, as well as the valve housing and at least part of the existing actuators, in particular the valve actuator or the pump actuator, an elongated, columnar and form a structural unit connected to the canister or they are arranged essentially in a straight line extension next to or behind one another (depending on the viewing direction) on the canister. In other words, the valve housing can connect substantially in straight extension to the pump housing and the valve actuator substantially in straight extension to the valve housing and a pump actuator substantially in straight extension to the pump housing to the desired space-saving and compact canister design together with pump housing and multi-way valve to be able to train.
Gemäß einer besonders bevorzugten Ausgestaltung weist der Kanister eine rechteckförmige oder tortenstückartige bzw. keilförmige (zum Beispiel bevorzugt symmetrische trapezartige oder dreiecksförmige) Außengeometrie auf und ist die Pumpe, insbesondere das Pumpengehäuse, und das diesem zugeordnete Ventilgehäuse des Mehrwegeventils bzw. das diesem zugeordnete Ventilgehäuse mitsamt Betätigungseinrichtung an einer Schmalseite der Kanisteraußenseite bzw. Kanisteraußenwand angeordnet. Diese Schmalseite ist bevorzugt im montierten Zustand einer Dosierkopfeinheit einer Dosiervorrichtung bzw. eines Farbdispensers zugeordnet. Mit einem derartigen Aufbau der Kanister können diese auf einfache Weise mit ihren Längsseiten nebeneinander bzw. unmittelbar aneinander anliegend in einem Farbdispenser angeordnet werden und ergibt sich somit ein insgesamt äußerst kompakter Aufbau.According to a particularly preferred embodiment, the canister has a rectangular or pie-shaped or wedge-shaped (for example, preferably symmetrical trapezoidal or triangular) outer geometry and is the Pump, in particular the pump housing, and associated therewith the valve housing of the multi-way valve or the valve housing associated therewith, together with actuating device on a narrow side of the canister outside or canister outer wall. This narrow side is preferably assigned in the mounted state of a dosing head unit of a dosing device or a Farbdispensers. With such a construction of the canisters, these can be arranged in a simple manner with their longitudinal sides next to each other or directly adjacent to each other in a color dispenser and thus results in an overall extremely compact design.
Weiter kann an einem dem Mehrwegeventil gegenüberliegenden Endbereich des Pumpengehäuses eine Pumpen-Betätigungseinrichtung angeordnet sein. Besonders bevorzugt ist in diesem Zusammenhang eine konkrete Ausgestaltung, bei der an einem dem Mehrwegeventil gegenüberliegenden Endbereich des durch einen Pumpenzylinder gebildeten Pumpengehäuses einer Zylinder-Kolben-Pumpe eine Kolben-Betätigungseinrichtung als Pumpen-Betätigungseiririchtung angeordnet ist, die mit einer mit einem Kolben der Zylinder-Kolben-Pumpe verbundenen Kolbenstange für eine Kolbenverstellung zusammenwirkt. Eine einfache und zuverlässige Befestigungsmöglichkeit sieht vor, dass die Betätigungseinrichtung bzw. deren Gehäuse einen Anschlussflansch aufweist, der mittels mehrerer Schraubverbindungen im Wesentlichen in geradliniger Verlängerung des Pumpengehäuses mit diesem verschraubt ist. Auch diese Pumpen-Betätigungseinrichtung kann somit in geradliniger Verlängerung des Pumpengehäuses angeordnet sein und damit, wie vorstehend in Verbindung mit dem Ventilgehäuse und der Ventil-Betätigungseinrichtung beschrieben, ein insgesamt sehr kompakter, kleinbauender Aufbau des Kanisters mitsamt Mehrwegeventil und Betätigungseinrichtungen zur Verfügung gestellt werden.Furthermore, a pump actuating device can be arranged on an end region of the pump housing opposite the multiway valve. Particularly preferred in this context is a specific embodiment in which a piston actuator is arranged as a pump Betätigungsseiririchtung on one of the multi-way valve opposite end portion of the pump housing formed by a pump cylinder housing a cylinder-piston pump, which is connected to a piston with a cylinder. Piston-pump connected piston rod cooperates for a piston adjustment. A simple and reliable mounting option provides that the actuating device or its housing has a connecting flange, which is screwed by means of a plurality of screw substantially in rectilinear extension of the pump housing with this. Also, this pump actuator can thus be arranged in a rectilinear extension of the pump housing and thus, as described above in connection with the valve housing and the valve actuator, a total of very compact, small construction of the canister together with multi-way valve and actuators are provided.
Konkret kann die Kolben-Betätigungseinrichtung eine mittels einer Steuereinrichtung ansteuerbare Spindelmutter aufweisen, die um eine betätigungseinrichtungseitige Spindelmutterachse drehbar ist und die mit der wenigstens bereichsweise als Gewindespindel ausgeführten Kolbenstange dergestalt zusammenwirkt, dass bei einer Drehbetätigung der Spindelmutter der Kolben in Abhängigkeit von der jeweiligen Drehrichtung in Richtung Mehrwegeventil oder in Richtung von dem Mehrwegeventil weg verlagerbar ist. Eine derartige Gewindespindelanordnung erlaubt eine funktionssichere Kolbenverstellung in Verbindung mit einer für die jeweils gewünschte Kolbenstellung vorteilhaften Getriebeselbsthemmung.Specifically, the piston actuator may have a controllable by a control device spindle nut which is rotatable about a Betätigungswerksseitige spindle nut axis and which cooperates with the at least partially designed as a threaded piston rod such that during a rotational actuation of the spindle nut of the piston in response to the respective direction of rotation in the direction Multi-way valve or in the direction of the multi-way valve is displaced away. Such a threaded spindle assembly allows a functionally reliable piston adjustment in conjunction with an advantageous for each desired piston position transmission self-locking.
Gemäß einer diesbezüglich weiteren besonders bevorzugten Ausgestaltung kann vorgesehen sein, dass die Kolbenstange die Kolben-Betätigungseinrichtung mit einem freien Endbereich überragt, wobei am freien Endbereich ein Kontakt- und/oder Gleitelement angeordnet ist, das in einer kanisterseitig ausgebildeten Führungsnut geführt ist. Die Führung kann dabei dergestalt ausgebildet sein, dass in zwei voneinander definiert beabstandeten Führungsnutpositionen jeweils ein Kontaktgegenelement angeordnet ist, das bei Kontakt mit dem Kontakt- und/oder Gleitelement die Betätigungseinrichtung ausschaltet oder ansteuert. Hierdurch ergibt sich eine wesentliche Betriebsvereinfachung bei der Betätigung der Zylinder-Kolben-Pumpe.According to a further particularly preferred embodiment in this regard, it can be provided that the piston rod projects beyond the piston actuating device with a free end region, wherein a contact and / or sliding element is arranged at the free end region, which is guided in a guide groove formed on the side of the canister. The guide can be designed in such a way that in each case a contact counter element is arranged in two mutually defined spaced Führungsnutpositionen, which switches off or controls the actuator on contact with the contact and / or sliding element. This results in a significant simplification of operation in the operation of the cylinder-piston pump.
Weiter kann an einer Außenwand des Kanisters, insbesondere an einer Außenwand des Pumpengehäuses eine Steuereinrichtung angeordnet sein, mittels der die Pumpe und das Mehrwegeventil, insbesondere deren jeweiligen Betätigungseinrichtungen, auf schnelle, kompakte und einfache Weise angesteuert werden können. Mit einer derartigen Anordnung der Steuereinrichtung bzw. Ansteuerelektronik am Kanister bzw. an der Außenwand des Pumpengehäuses wird somit eine weitere Bauraumverdichtung erzielt, die sich besonders vorteilhaft auf den insgesamt benötigten Bauraum eines mehrere derartige Kanister aufweisenden Farbdispensers auswirkt.Furthermore, a control device can be arranged on an outer wall of the canister, in particular on an outer wall of the pump housing, by means of which the pump and the multi-way valve, in particular their respective actuating devices, can be controlled in a fast, compact and simple manner. With such an arrangement of the control device or control electronics on the canister or on the outer wall of the pump housing thus a further space compression is achieved, which has a particularly advantageous effect on the total required space of a plurality of such canisters having Farbdispensers.
Der Kanister kann zudem an einem in der Betriebsstellung in Hochachsenrichtung oberen Kanisterende eine sich über wenigstens einen Teilbereich der Behälteroberseite Wartungsöffnung aufweisen, die mit einem Verschlusselement lösbar verschließbar ist. Über eine derartige bevorzugt relativ großflächige Wartungsöffnung ist ein einfacher Zugang in den Kanisterinnenraum möglich, wie dies beispielsweise bei Wartungsarbeiten der Fall sein kann. Für ein einfaches und bedienerfreundliches Nachfüllen des Kanisters ist dagegen am Verschlusselement selbst eine gegenüber der Wartungsöffnung kleinere Nachfüllöffnung ausgebildet, die mit einem zweiten Verschlusselement lösbar verschlossen ist. Bevorzugt erfolgt die Anordnung der Kanister im Farbdispenser so, dass von den Kanistern lediglich die Nachfüllöffnung sichtbar und zugänglich ist, die Behälteroberseiten und damit die Wartungsöffnungen aber zum Beispiel unter einem entsprechenden Abdeckelement liegen und somit nicht frei zugänglich sind.In addition, the canister can have a maintenance opening, which can be detachably closed by means of a closure element, at a top end of the canister in the operating position in the vertical axis direction. Such a preferably relatively large maintenance opening allows easy access into the canister interior, as may be the case, for example, during maintenance work. For a simple and user-friendly refilling of the canister, however, the closure element itself is smaller than the maintenance opening Refill formed, which is releasably closed with a second closure element. Preferably, the arrangement of the canisters in the color dispenser is such that only the refill opening of the canisters is visible and accessible, the container tops and thus the maintenance openings but for example under a corresponding cover and thus are not freely accessible.
Eine erfindungsgemäße Dosiervorrichtung zur dosierten Abgabe von pumpfähigen Medien, insbesondere zur dosierten Abgabe von Farbpigmentpräparationen, ist mit mehreren erfindungsgemäßen Kanistern wie vorstehend beschrieben, verbunden. Besonders bevorzugt sind mehrere tortenstückartig und/oder keilförmig ausgebildete Kanister mit ihren Längsseiten mit einem definierten Spaltabstand und/oder unmittelbar aneinander angrenzend in der Dosiervorrichtung in der Art eines Kreisrings oder eines Kreisringabschnittes, insbesondere halbkreisartig, um eine zentrale und/oder mittige Dosierkopfeinheit herum angeordnet, wodurch sich kurze Strömungswege und eine insgesamt kompakte Anordnung ergeben.A metering device according to the invention for the metered dispensing of pumpable media, in particular for the metered dispensing of color pigment preparations, is connected to a plurality of canisters according to the invention as described above. Particularly preferred are a plurality of pie-like and / or wedge-shaped canisters with their longitudinal sides with a defined gap spacing and / or directly adjacent to each other in the metering device in the manner of a circular ring or a circular ring section, in particular semicircular, arranged around a central and / or central Dosierkopfeinheit around, resulting in short flow paths and an overall compact arrangement.
Besonders bevorzugt ist hierbei ein Aufbau der Dosiervorrichtung, bei dem die Kanisteroberseiten der Kanister so von einer einen Wandbereich der Dosiervorrichtung ausbildenden, lösbar festgelegten Abdeckplatte abgedeckt sind, dass lediglich die die Nachfüllöffnungen der Kanister verschließenden Verschlusselemente von außen her sichtbar und/oder zugänglich sind. Die sich damit ergebenen Vorteile wurden bereits vorstehend genannt.Particularly preferred here is a construction of the metering device, in which the canister tops of the canisters are covered by a cover portion that forms a wall region of the metering device, such that only the closure elements closing the refill openings of the canisters are visible and / or accessible from the outside. The resulting benefits have already been mentioned above.
Zudem ist es für einen Aufbau mit kurzen Strömungswegen vorteilhaft, wenn die Dosierkopfeinheit mitsamt einer dieser zugeordneten, die Kanister aufnehmenden Gehäuseeinheit der Dosiervorrichtung beabstandet oberhalb einer Aufstandsfläche der Dosiervorrichtung und/oder beabstandet oberhalb einer Aufnahme für ein Mischgefäß angeordnet ist.In addition, it is advantageous for a construction with short flow paths if the dosing head unit, together with one of these associated, the canister receiving housing unit of the dosing device spaced above a footprint of the dosing and / or spaced above a receptacle for a mixing vessel.
Ferner wird ein Verfahren beschrieben, bei dem die Pumpe insbesondere eine Zylinder-Kolben-Pumpe, und das Mehrwegeventil mittels einer Steuereinrichtung so ansteuerbar sind, dass das Mehrwegeventil, insbesondere bei einer von dem Mehrwegeventil weggerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, in einer ersten Ventilstellung (Saugstellung) eine definierte Menge des pumpfähigen Mediums aus dem Kanister, insbesondere aus einem ersten oder unteren Kanisterbereich, absaugt, bevorzugt in ein Pumpengehäuse, höchst bevorzugt in einen Pumpenzylinder einer Zylinder-Kolben-Pumpe saugt. Weiter ist vorgesehen, dass das Mehrwegeventil anschließend, insbesondere bei einer im Anschluss an eine Kolbenverlagerung stattfindenden und auf das Mehrwegeventil zu gerichteten Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, entweder in eine zweite Ventilstellung (Ausschiebstellung) geschaltet wird, in der eine definierte Menge des aus dem Kanister abgesaugten pumpfähigen Mediums über das Mehrwegeventil ausgebracht bzw. abgeführt wird, insbesondere über eine mit dem Mehrwegeventil gekoppelte Schlauch- und/oder Rohrleitung zu einem Dosierkopf gefördert wird, oder aber in eine dritte Ventilstellung (Rezirkulationsstellung) geschaltet wird, in der aus dem Kanister abgesaugtes pumpfähiges Medium in den Kanister zurückgefördert wird, insbesondere in den ersten Kanisterbereich oder in einen vom ersten Kanisterbereich beabstandeten zweiten oder oberen Kanisterbereich zurückgefördert wird.Furthermore, a method is described in which the pump In particular, a cylinder-piston pump, and the multi-way valve by means of a control device are controlled so that the multi-way valve, in particular in a direction away from the multi-way valve displacement of a piston of a cylinder-piston pump, in a first valve position (suction position) a defined amount of pumpable medium from the canister, in particular from a first or lower canister area, sucks, preferably in a pump housing, most preferably sucks in a pump cylinder of a cylinder-piston pump. It is further provided that the multi-way valve is then switched to either a second valve position (Ausschiebstellung), in particular in a taking place after a piston displacement and directed to the multi-way valve displacement of a piston of a cylinder-piston pump in which a defined amount the discharged from the canister pumpable medium via the multi-way valve is discharged or discharged, in particular via a coupled with the multi-way valve hose and / or pipe is conveyed to a dosing, or in a third valve position (recirculation position) is switched in the off the pumped aspirated medium is conveyed back into the canister, in particular in the first canister area or in a distance from the first canister area second or upper canister area is conveyed back.
Die Pumpe und das Mehrwegeventil sind mittels der Steuereinrichtung gemäß einer besonders bevorzugten Verfahrensführung zudem so ansteuerbar, dass das Mehrwegeventil im Anschluss an das Ausschieben bzw. Ausführen des pumpfähigen Mediums in der zweiten Ventilstellung verbleibt und, vorzugsweise durch eine von dem Mehrwegeventil weggerichtete Verlagerung eines Kolbens einer Zylinder-Kolben-Pumpe, eine definierte Rückstandsmenge an pumpfähigem Medium, insbesondere eine in einer zu einem Dosierkopf führenden Schlauch- und/oder Rohrleitung verbleibende Rückstandsmenge an pumpfähigem Medium, von der Pumpe rückgesaugt wird, insbesondere in das Pumpengehäuse rückgesaugt wird.The pump and the multi-way valve are also controllable by means of the control device according to a particularly preferred process control that the multi-way valve remains in the second valve position following the pushing out or running of the pumpable medium and, preferably by a directed away from the multi-way valve displacement of a piston Cylinder-piston pump, a defined residue amount of pumpable medium, in particular a remaining in a leading to a dosing head hose and / or pipe residue amount of pumpable medium is sucked back from the pump, in particular sucked back into the pump housing.
Die Erfindung wird nachfolgend einer Zeichnung näher erläutert.The invention will be explained in more detail below a drawing.
Es zeigen:
- Fig. 1
- schematisch und perspektivisch einen eine Dosiervorrichtung ausbildenden Farbdispenser zur dosierten Abgabe von pumpfähigen Medien, insbesondere zur dosierten Abgabe von Farbpigmentpräparationen, mit einer Mehrzahl von erfindungsgemäßen Kanistern,
- Fig. 2
- schematisch eine perspektivische Darstellung eines erfindungsgemäßen Kanisters gemäß einer bevorzugten Ausführungsform,
- Fig. 3a
- schematisch eine dem Kanister zugewandte Rückansicht der Zylinder-Kolben-Pumpe gemäß
Fig. 2 mitsamt Kolben-Betätigungseinrichtung, Mehrwegeventil und Ventil-Betätigungseinrichtung, - Fig. 3b
- eine um 90° gedrehte Ansicht der
Fig. 3a , - Fig. 3c
- schematisch eine Schnittansicht entlang der Linie B-B der
Fig. 3a , - Fig. 4a
- schematisch und beispielhaft eine Rückansicht auf die dem Kanister zugewandte Seite des Mehrwegeventils mitsamt daran nach unten anschließenden Ventil-Betätigungseinrichtung,
- Fig. 4b
- schematisch eine Schnittansicht entlang der Linie C-C der
Fig. 4a , - Fig. 4c
- schematisch eine Draufsicht auf die Darstellung gemäß
Fig. 4a , - Fig. 5
- schematisch eine perspektivische Explosionsdarstellung des Mehrwegeventils mitsamt Ventil-Betätigungseinrichtung der
Fig. 4a bis 4c , - Fig. 6a bis 6d
- schematisch und als Prinzipskizze einen Abpumpzyklus mitsamt Rückpumpzyklus, und
- Fig. 7a, 7b
- schematisch einen Rezirkulationszyklus.
- Fig. 1
- schematically and in perspective, a metering device forming a color dispenser for the metered delivery of pumpable media, in particular for the metered dispensing of color pigment preparations, with a plurality of canisters according to the invention,
- Fig. 2
- 1 is a schematic perspective view of a canister according to the invention according to a preferred embodiment,
- Fig. 3a
- schematically a the canister facing rear view of the cylinder-piston pump according to
Fig. 2 including piston actuator, multi-way valve and valve actuator, - Fig. 3b
- a rotated by 90 ° view of
Fig. 3a . - Fig. 3c
- schematically a sectional view taken along the line BB of
Fig. 3a . - Fig. 4a
- schematically and by way of example a rear view of the side of the multi-way valve facing the canister, together with a valve actuating device which subsequently adjoins it,
- Fig. 4b
- schematically a sectional view taken along the line CC of
Fig. 4a . - Fig. 4c
- schematically a plan view of the illustration according to
Fig. 4a . - Fig. 5
- schematically an exploded perspective view of the multi-way valve together with valve actuator of
Fig. 4a to 4c . - Fig. 6a to 6d
- schematically and as a schematic diagram a Abpumpzyklus together with Rückpumpzyklus, and
- Fig. 7a, 7b
- schematically a recirculation cycle.
In der
Die Kanister 3 sind mit unterschiedlichen Farbpigmentpräparationen befüllt, und können, was nachfolgend noch ausführlich erläutert wird, durch entsprechende Ansteuerung ihre jeweilige Farbpigmentpaste zum Dosierkopf (nicht dargestellt) der Dosierkopfeinheit 2 fördern, wo die jeweilige Farbpigmentpaste in ein, eine Grundfarbe, zum Beispiel Weiß, aufweisendes Mischgefäß 6 eingebracht wird, das hier beispielhaft auf einer podestartigen Aufnahme 7 des Farbdispensers 1 angeordnet ist.The
Die Dosierkopfeinheit 2 mitsamt einer dieser zugeordneten, die Kanister 3 aufnehmenden Gehäuseeinheit ist wie dargestellt beabstandet oberhalb einer Aufstandsfläche des Farbdispensers 1 und beabstandet oberhalb der Aufnahme 7 für das Mischgefäß 6 angeordnet.The
An der Dosierkopfeinheit 2 ist ferner ein Steuerungsrechner 8 angeordnet, in dem verschiedene Farb-Zusammenstellungen abgespeichert sind und dementsprechend unterschiedliche Farbmischungen mittels des Farbdispensers 1 bereitgestellt werden können.Furthermore, a
Die in
Grundsätzlich ist an einer der Dosierkopfeinheit 2 zugeordneten Schmalseite 9 des Kanisters 3 eine sich über wenigstens einen Teilbereich der Schmalseitenlänge erstreckende Zylinder-Kolben-Pumpe 10 angeordnet (siehe insbesondere
Am, in Hochachsenrichtung des Kanisters 3 gesehen, oberen Ende des Pumpenzylinders 11 wirkt die Kolbenstange 13 mit einer nicht im Detail dargestellten Spindelmutter einer Kolben-Betätigungseinrichtung 14 zusammen, wobei die Kolben-Betätigungseinrichtung 14 bzw. deren Gehäuse einen Anschlussflansch 15 aufweist, der mittels mehrerer hier nicht gezeigter Schraubverbindungen mit einem zugeordneten Anschlussflanschbereich des oberen Endes des Pumpenzylinders 11 fest verbunden ist.At, seen in the vertical direction of the
Die Kolben-Betätigungseinrichtung 14 kann zum Beispiel durch einen Schrittmotor gebildet sein, der die hier nicht dargestellte Spindelmutter in die eine oder andere Richtung antreibt, wodurch die Kolbenstange 13 und damit der Kolben 12 entsprechend nach oben oder nach unten im Pumpenzylinder 11 verlagert werden kann. Die Ansteuerung dieses Schrittmotors erfolgt beispielsweise über die an der Außenseite des Pumpenzylinders 11 angeordnete und hier lediglich äußerst schematisch und beispielhaft dargestellte Steuereinrichtung 16 (
An einem die Kolben-Betätigungseinrichtung 14 überragenden freien Endbereich der Kolbenstange 13 ist ferner ein Gleitstein 17 angeordnet, der in einer an der Schmalseite 9 des Kanisters 3 ausgebildeten Führungsnut 18 verschiebbar geführt und aufgenommen ist. Die Führungsnut 18 wird hier durch zwei von der Schmalseite 9 wegragende und durch Rippen19 versteifte Führungswände 20, 21 ausgebildet. Diese Führungswände 20, 21 können direkt in ein Gehäuse der Kolben-Betätigungseinrichtung 14 übergehen oder aber auch durch separate Bauteile gebildet sein, die nicht mit der Kolben-Betätigungseinrichtung 14 materialeinheitlich verbunden sind.On a the
An einem der Kolben-Betätigungseinrichtung 14 gegenüberliegenden Endbereich des Pumpenzylinders 11 ist hier beispielhaft und bevorzugt ein 4/3-Wegeventil als Mehrwegeventil 22 angeordnet, und zwar dergestalt, dass der Pumpenzylinder 11 mit einem in Hochachsenrichtung unteren freien Endbereich unmittelbar an ein Ventilgehäuse 23 des Mehrwegeventils 22 anschließt. Dabei schließt der Pumpenzylinder 11 bevorzugt so an das Ventilgehäuse 23 des Mehrwegeventils 22 an, dass der den Kolben 12 aufnehmende Zylinderhohlraum bzw. Zylinderinnenraum des Pumpenzylinders 11 unmittelbar und direkt, das heißt, wie insbesondere aus den
In Hochachsenrichtung nach unten gesehen schließt sich weiter an das Ventilgehäuse 23 eine Ventil-Betätigungseinrichtung 24 an. Diese, zum Beispiel einen Aktor aufweisende Ventil-Betätigungseinrichtung 24 weist einen Anschraubflansch 25 auf, der mehreren in Umfangsrichtung um das Ventilgehäuse 23 herum angeordneten und voneinander beabstandeten Schraubdomen 26 dergestalt zugeordnet ist, dass die Ventil-Betätigungseinrichtung 24 mittels mehrerer hier nicht dargestellter Befestigungsschrauben durch den Anschraubflansch 25 hindurch in die Schraubdome 26 einschraubbar sind, um die Ventil-Betätigungseinrichtung 24 bzw. deren Gehäuse fest mit dem Ventilgehäuse 23 zu verbinden.When viewed in the vertical axis direction downwards, the
Die Ansteuerung der Ventil-Betätigungseinrichtung 24 erfolgt dabei ebenfalls wiederum bevorzugt über die Steuereinrichtung 16, die wiederum programmgesteuert durch den Steuerungsrechner 8 angesteuert wird.The control of the
Wie dies insbesondere aus der Zusammenschau 2, 3a, 3b und 3c ersichtlich ist, sind somit die Zylinder-Kolben-Pumpe 10 bzw. deren Pumpenzylinder 11 mitsamt zugeordneter Kolben-Betätigungseinrichtung 14 sowie mitsamt zugeordnetem Mehrwegeventil 22 mit zugeordneter Ventil-Betätigungseinrichtung 24 im Wesentlichen säulenartig und langgestreckt bzw. geradlinig hintereinanderliegend an der Schmalseite 9 des Kanisters 3 angeordnet, so dass sich ein insgesamt äußerst kompakter Aufbau des Kanisters 3 mitsamt den eben beschriebenen Bauteilen ergibt, was wiederum insgesamt, wie in der
Ein derartiger kompakt aufgebauter Kanister 3 mitsamt seinen Gesamtbauteilen kann auf einfache Weise in den Farbdispenser 1 eingesetzt werden und dort zum Beispiel elektronisch angekoppelt werden bzw. über den ventilseitigen Schlauchanschluss 27 mit der Dosierkopfeinheit 2 strömungsverbunden werden. Dadurch ergeben sich insgesamt kurze Strömungswege mit wenig Schlauch- und Rohrleitungsverbindungen, wobei zudem eine schnelle Austauschbarkeit der Kanister 3 gewährleistet ist.Such a compactly constructed
Das Mehrwegeventil 22 ist dabei wie folgt aufgebaut:The
Im Ventilgehäuse 23 (
Im hier gezeigten Beispielfall der
In der Abdeckscheibe 38 ist eine mit der Scheibenöffnung 37 fluchtende Ausnehmung 41 eingebracht, die im montierten Zustand des Mehrwegeventils 22 in den Pumpenzylinder 11 mündet.In the cover 38 a aligned with the
An der Unterseite der vorzugsweise aus einem Kunststoffmaterial hergestellten Abdeckscheibe 38 ist eine Antriebsachse 42 angeordnet, insbesondere angeformt, die dicht durch die beiden Lochscheiben 32, 36 und das Ventilgehäuse 23 hindurchgeführt ist und mit der Ventil-Betätigungseinrichtung 24 bzw. deren Aktor oder Antriebselement wirkverbunden ist.On the underside of the
Wie dies der Zusammenschau der
Auf der gegenüberliegenden Seite des Schlauchanschlusses 27 bzw. des Strömungskanals 43 sind zwei Strömungskanäle 44, 45 ausgebildet, die im montierten Zustand der Schmalseite 9 des Kanisters 3 zugewandt sind, wobei die beiden Strömungskanäle 44, 45 ventilgehäuseseitig verlaufen und zum einen (Strömungskanal 44) in der Mündungsöffnung 30 und zum anderen (Strömungskanal 45) in der Mündungsöffnung 29 münden. Damit sind am Ventilgehäuse bzw. am Mehrwegeventil 22 drei unterschiedliche Strömungswege ausgebildet. An dem Strömungskanal 44 ist beispielsweise, was in der
Mit einem derartigen bevorzugten und beispielhaften Aufbau eines Kanisters 3 lässt sich beispielhaft der in der
Die Ansteuerung des Mehrwegeventils 22 bzw. der Zylinder-Kolben-Pumpe 10 erfolgt dabei jeweils über die Steuereinrichtung 16, ohne dass dies nachfolgend nochmals näher erläutert wird.The control of the
In einer in der
Wird der Kolben 12 anschließend entsprechend des strichlierten Kolbenpfeils wieder nach unten bewegt, kann die Farbpigmentpaste wieder in den Kanister 3, insbesondere in den unteren Kanisterbereich, zurückgepumpt werden (strichlierter Pfeil 48'), wodurch zum Beispiel ein Bodensatz aufgewirbelt werden kann. Alternativ dazu kann die verdrehbare Lochscheibe 36 aber auch in eine Ventilstellung II überführt (
Sobald dies abgeschlossen ist, kann das Ventil in der Ventilstellung II verbleiben und der Kolben 12 wieder entsprechend nach oben bewegt werden (
Diese Rückstände können beispielsweise in den Kanister 3 zurückgepumpt werden (
Alternativ zu den Verfahrensschritten gemäß
Dadurch, dass sowohl in der Ventilstellung gemäß
Die eben in Verbindung mit den
Wie dies weiter insbesondere der
Am Verschlussdeckel 52 ist weiter eine Nachfüllöffnung 4 mit gegenüber der Wartungsöffnung kleinerem Öffnungsdurchmesser ausgebildet, der mittels des Nachfüllöffnungs-Verschlussdeckels 4 verschlossen werden kann, wie dies bereits eingangs erläutert worden ist.On the
Der Kanister 3 selbst kann beispielsweise aus einem Kunststoffmaterial hergestellt sein, ebenso wie das Ventilgehäuse und die Gehäuse der Betätigungseinrichtungen.The
Claims (14)
- Canister for pumpable media, in particular for colour pigment preparations,
having a delivery device assigned to the canister (3), a pumpable medium held in the canister (3) being extractable in a controlled manner via a valve device by means of said delivery device, wherein the valve device is additionally configured and controllable such that at least a part of a quantity of pumpable medium extracted from the canister (3) is able to be delivered back into the canister (3),
wherein the delivery device is formed by a pump (10), arranged on the canister (3), having a pump housing (11),
wherein the valve device, which is configured as a multi-way valve (22), is connected to the pump housing (11),
wherein the multi-way valve (22) has a plurality of mouth openings (28, 29, 30) assigned to different flow paths, characterized in that the multi-way valve (22) has a perforated disc (36) that covers and/or closes the mouth openings (28, 29, 30) and is rotatable relative thereto, said perforated disc (36) having at least one, preferably a single, disc opening (37) which leads into the pump housing (11) such that the at least one disc opening (37) is able to be aligned with one of the mouth openings (28, 29, 30) when the perforated disc is rotated, and thus a flow connection between the pump housing (11) and the flow path assigned to the respective mouth opening (28, 29, 30) is establishable, in that the rotatable perforated disc (36) has a driving pin (42) projecting therefrom or is coupled and/or connected to such a driving pin (42),
in that the driving pin (42) is guided through the valve housing (23) towards the outside and is coupled there to a valve actuating device (24), and
in that the rotatable perforated disc (36) is formed in two parts and has a first component carrying the driving pin (42), said first component facing the pump housing (11), and a second component that is lower with respect thereto, faces the mouth openings (28, 29, 30) and has the driving pin (42) passing through it, said second component being connected to the first component for conjoint rotation. - Canister according to Claim 1, characterized in that the pump (10) is formed by a cylinder/piston pump arranged on the canister (3), said cylinder/piston pump having a pump cylinder as pump housing (11) and a piston (12) guided in a displaceable manner therein, wherein the multi-way valve (22) is connected to the pump cylinder, and in particular the pump cylinder immediately adjoins a valve housing (23) of the multi-way valve (22).
- Canister according to Claim 1 or 2, characterized in that a free end region of the pump housing (11), in particular of a pump cylinder of a cylinder/piston pump, adjoins the valve housing (23), in particular is plugged and/or fitted thereon by means of a plug-on and/or fitting connection, such that the pump housing (11), in particular a cylinder cavity, accommodating a piston (12) of a cylinder/piston pump, of a pump cylinder, adjoins the valve housing (23) immediately and directly, in particular without hose and/or pipeline connection(s), and in particular transitions into the valve-housing interior that accommodates the at least one displaceable shut-off element of the multi-way valve (22).
- Canister according to one of the preceding claims, characterized in that the multi-way valve (22) is constructed and/or switchable such that:- in at least one switching position, a flow connection is established between the canister (3) and the pump housing (11), pumpable medium being suckable out of the canister (3) and into the pump housing (11) in said switching position, in particular when a piston (12) of a cylinder/piston pump is displaced in a direction away from the multi-way valve (22), and pumpable medium being pumpable into the canister, in particular from the pump housing (11) into the canister (3), in said switching position, in particular when a piston (12) of a cylinder/piston pump is displaced in the direction of the multi-way valve (22), and- in at least one further switching position, a flow connection is established between the pump housing (11) and a line leading away from the multi-way valve (22), pumpable medium being pumpable into the line leading away in said further switching position, in particular when a piston (12) of a cylinder/piston pump is displaced in the direction of the multi-way valve (22), and pumpable medium being suckable out of the line leading away and into the pump cylinder (11) in said further switching position, in particular when a piston (12) of a cylinder/piston pump is displaced in a direction away from the multi-way valve (22).
- Canister according to one of the preceding claims, characterized in that a plurality of, in particular two mutually independent flow paths are provided between the canister (3) and the multi-way valve (22), different switching positions of the multi-way valve (22) being assignable to said flow paths.
- Canister according to Claim 5, characterized in that two mutually independent flow paths are provided between the canister (3) and the multi-way valve (22), different switching positions of the multi-way valve (22) being assignable to said flow paths such that,
in a first switching position, the multi-way valve (22) forms a first flow path between the canister (3) and pump housing (11), pumpable medium being suckable out of a first canister region, in particular out of a lower canister region in the direction of the vertical axis, and into the pump housing (11) via said first flow path, in particular when a piston (12) of a cylinder/piston pump is displaced in a direction away from the multi-way valve (22), and/or pumpable medium being pumpable into a first canister region, in particular into a lower canister region in the direction of the vertical axis, in particular being pumpable back into the first canister region from the pump housing (11), via said first flow path, in particular when a piston (12) of a cylinder/piston pump is displaced in the direction of the multi-way valve (22), and
in a second switching position that is different from the first switching position, the multi-way valve (22) forms a second flow path, pumpable medium being suckable out of a second canister region that is different from the first canister region and/or spaced apart therefrom, in particular into an upper canister region in the direction of the vertical axis, and into the pump housing (11) via said second flow path, in particular when a piston (12) of a cylinder/piston pump is displaced in a direction away from the multi-way valve (22), and/or pumpable medium being pumpable into a second canister region that is different from the first canister region and/or spaced apart therefrom, in particular into an upper canister region in the direction of the vertical axis, in particular being pumpable from the pump housing (11) into the second canister region, via said second flow path, in particular when a piston (12) of a cylinder/piston pump is displaced in the direction of the multi-way valve (22). - Canister according to one of Claims 4 to 6, characterized in that the multi-way valve (22), in particular a 4/3-way valve, is constructed such that, in a further, in particular third, switching position, said multi-way valve (22) exhibits a flow connection between the pump housing (11) and the line leading away from the multi-way valve (22) and/or such that said multi-way valve (22) blocks all the flow paths in a further switching position.
- Canister according to one of the preceding claims, characterized in that a further, stationary perforated disc (32), preferably made of a ceramic material, is provided between the mouth openings (28, 29, 30) formed on the valve-housing side and the rotatable perforated disc (36), said further perforated disc (32) having cutouts (33, 34, 35) assigned to the mouth openings (28, 29, 30) and the rotatable perforated disc (36), preferably a rotatable perforated disc (36) produced from a ceramic material, resting on said further perforated disc (32) in a flat abutment connection in a rotatable manner relative thereto and/or in a sealing manner, wherein provision is preferably made for the driving pin (42) of the rotatable perforated disc (36) to be passed through a pin cutout (42) in the stationary perforated disc (32).
- Canister according to one of the preceding claims, characterized in that the two components of the rotatable perforated disc (36) formed in two parts are produced from different materials.
- Canister according to one of the preceding claims, characterized in that a valve actuation device (24) is arranged indirectly or directly on the canister (3), in particular such that a plurality of spaced-apart screw bosses (26) are arranged on the valve housing (23), a respective screw-on flange region on the actuation-device side being assigned to said screw bosses (26) such that the valve actuation device (24) is securable to the valve housing (23) by means of a plurality of fastening screws that are screwable through the screw-on flange regions (25) into the screw bosses (26).
- Canister according to one of the preceding claims, characterized in that the pump (10), in particular the pump housing (11), the valve housing (23) and at least some of the actuation devices, in particular a valve actuation device (24) and/or a pump actuation device (14), form an elongate, column-like component connected to the canister (3), and/or are arranged on the canister (3) so as to lie substantially in rectilinear extension next to one another or one after another, in particular such that the valve housing (23) adjoins the pump housing (11) substantially in straight extension and the valve actuation device (24) adjoins the valve housing (23) substantially in straight extension and the pump actuation device (14) adjoins the pump housing (11) substantially in straight extension.
- Canister according to one of the preceding claims, characterized in that a pump actuation device is arranged in an end region, opposite the multi-way valve (22), of the pump housing (11), in particular a piston actuation device (14) is arranged as pump actuation device in an end region, opposite the multi-way valve (22), of the pump housing (11), formed by a pump cylinder, of a cylinder/piston pump, said piston actuation device (14) interacting with a piston rod (13) connected to a piston (12) of the cylinder/piston pump, wherein provision is preferably made for the pump actuation device to have a connection flange (15) which is screwed together with the pump housing by means of a plurality of screw connections substantially in rectilinear extension of the latter.
- Canister according to one of the preceding claims, characterized in that a control device (16) is arranged on an outer wall of the canister (3), in particular on an outer wall of the pump housing (11), the pump (10) and the multi-way valve (22), in particular an actuation device (14) for the pump (10) and/or a valve actuation device (24) for the multi-way valve (22), being controllable by means of said control device (16).
- Canister according to one of the preceding claims, characterized in that, at an upper canister end in the direction of the vertical axis in the operating position, the canister (3) has a maintenance opening extending over at least a subregion of the container top side, said maintenance opening being reversibly closable by way of a closure element (52), wherein a refill opening that is smaller than the maintenance opening is formed on the closure element (52), said refill opening being reversibly closable by way of a second closure element (4).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13001391.5T PL2781257T3 (en) | 2013-03-18 | 2013-03-18 | Canister for pumpable media, in particular for colouring pigment preparations |
EP13001391.5A EP2781257B1 (en) | 2013-03-18 | 2013-03-18 | Canister for pumpable media, in particular for colouring pigment preparations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13001391.5A EP2781257B1 (en) | 2013-03-18 | 2013-03-18 | Canister for pumpable media, in particular for colouring pigment preparations |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2781257A1 EP2781257A1 (en) | 2014-09-24 |
EP2781257B1 true EP2781257B1 (en) | 2016-03-16 |
Family
ID=47901752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13001391.5A Active EP2781257B1 (en) | 2013-03-18 | 2013-03-18 | Canister for pumpable media, in particular for colouring pigment preparations |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2781257B1 (en) |
PL (1) | PL2781257T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3006101A1 (en) | 2014-10-10 | 2016-04-13 | Collomix Rühr-und Mischgeräte GmbH | Canister for holding pumpable media, in particular for holding thixotropic and/or thickening fluids, method for drawing off a pumpable medium from a canister, and metering device, particularly adapted for the metered output of colouring pigment preparations |
JP6538465B2 (en) * | 2015-07-24 | 2019-07-03 | 武蔵エンジニアリング株式会社 | Ejection device and application device for liquid material containing solid particles, and application method |
CN110124556B (en) * | 2019-05-14 | 2024-07-02 | 浙江大东吴集团建设有限公司 | Stirring device for heat-insulating reflective coating for outer wall |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5328057A (en) | 1993-03-25 | 1994-07-12 | Fluid Management Limited Partnership | Paint dispenser apparatus |
BR9508780A (en) | 1994-09-01 | 1998-06-02 | Fluid Management Lp | Pump set dispenser for use in a fluid dispenser and valve set |
US6726065B2 (en) | 2002-02-04 | 2004-04-27 | Brian C. Sanders | Modular automatic colorant dispenser |
EP1735083B1 (en) * | 2004-02-27 | 2008-10-08 | Stibbe Management B.V. | Paint and hair dye dispensers |
US9724658B2 (en) * | 2011-03-28 | 2017-08-08 | Fast & Fluid Management B.V. | Method of homogenizing a liquid |
US8783516B2 (en) * | 2011-03-28 | 2014-07-22 | Fluid Management Operations Llc | Liquid dispenser and method for preventing liquid segregation |
-
2013
- 2013-03-18 PL PL13001391.5T patent/PL2781257T3/en unknown
- 2013-03-18 EP EP13001391.5A patent/EP2781257B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
PL2781257T3 (en) | 2016-10-31 |
EP2781257A1 (en) | 2014-09-24 |
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