EP2833991A1 - Spray mixer for mixing and spraying at least two flowable components - Google Patents

Spray mixer for mixing and spraying at least two flowable components

Info

Publication number
EP2833991A1
EP2833991A1 EP13718566.6A EP13718566A EP2833991A1 EP 2833991 A1 EP2833991 A1 EP 2833991A1 EP 13718566 A EP13718566 A EP 13718566A EP 2833991 A1 EP2833991 A1 EP 2833991A1
Authority
EP
European Patent Office
Prior art keywords
mixer
compressed air
spray
cartridge
mixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13718566.6A
Other languages
German (de)
French (fr)
Other versions
EP2833991B1 (en
Inventor
Jörg Müller
Richard LAVELANET
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medmix Switzerland AG
Original Assignee
Sulzer Mixpac AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer Mixpac AG filed Critical Sulzer Mixpac AG
Priority to EP13718566.6A priority Critical patent/EP2833991B1/en
Publication of EP2833991A1 publication Critical patent/EP2833991A1/en
Application granted granted Critical
Publication of EP2833991B1 publication Critical patent/EP2833991B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/47—Mixing liquids with liquids; Emulsifying involving high-viscosity liquids, e.g. asphalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2491—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2497—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device several liquids from different sources being supplied to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2472—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device comprising several containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B05C17/00566—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components with a dynamic mixer in the nozzle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S516/00—Colloid systems and wetting agents; subcombinations thereof; processes of
    • Y10S516/924—Significant dispersive or manipulative operation or step in making or stabilizing colloid system
    • Y10S516/928—Mixing combined with non-mixing operation or step, successively or simultaneously, e.g. heating, cooling, ph change, ageing, milling

Definitions

  • Spray mixer for mixing and spraying of at least two flowable
  • the invention relates to a spray mixer for mixing and spraying at least two flowable components according to the preamble of claim 1.
  • the components to be mixed are usually supplied to such mixers from a multi-component cartridge.
  • the mixer is arranged at a cartridge outlet opening, via which the components to be mixed can be discharged from containers of the multi-component cartridge.
  • Spray mist can be applied to the desired substrate.
  • This technology especially higher-viscosity coating media, for.
  • polyurethanes, epoxy resins or the like can be processed.
  • a spray mixer for such applications is disclosed, for example, in US Pat. No. 6,951,310 or EP 2 286 925 A2.
  • a tubular mixer housing is provided which extends in the direction of a mixer longitudinal axis from a mixer start to a distal mixer end.
  • the mixer housing houses a mixing element for static mixing.
  • a sleeve is arranged, which can be supplied via a perpendicular to the mixer longitudinal axis oriented mixer-compressed air inlet compressed air.
  • the said sleeve and the mixer housing form a mixer compressed air channel, which is closed in the direction of the mixer start and at the mixer end has an annular mixer compressed air outlet, which encloses a mixer outlet opening.
  • compressed air is supplied via the mixer compressed air inlet, which flows via the mixer compressed air channel to the mixer compressed air outlet and atomizes the material emerging from the mixer outlet opening.
  • Hoses or lines of the coating system such as with the above-described compressed air hose to projections of the component to be coated gets stuck. On the one hand, the said hoses and lines can be damaged, resulting in failure of the coating system and thus repair costs and
  • a spray mixer which has a handle and a mixer outer housing in the form of a sleeve.
  • the handle and the sleeve are made of aluminum.
  • a plastic mixer which consists of a mixer inner housing and a mixing element arranged therein, can be placed on the handle.
  • the sleeve can be slipped over the mixer and bolted to the handle.
  • Compressed air channel via the compressed air from the handle can be led to an outlet.
  • the mixer is intended only for single use, the sleeve is used several times.
  • the handle has connections for the flowable components and compressed air.
  • US 4,255,125 describes a sputtering apparatus for a combustible with a combustible feed and another sputtering gas feed.
  • the combustible material and the Zerstäubergas be brought together within the sputtering in a sputtering chamber and then by a
  • a spray mixer for mixing and spraying of at least two flowable components, which is easy to handle.
  • the object is achieved by a spray mixer with the features of claim 1.
  • the spray mixer for mixing and spraying at least two flowable components has a tubular
  • a mixer outer housing extending in the direction of a mixer longitudinal axis from a mixer start to a distal mixer end.
  • mixer inner housing at least one in Mixer inner housing arranged mixing element for mixing the components and a mixer-compressed air channel, which extends from a mixer-compressed air inlet to a mixer outlet opening.
  • the mixer compressed air inlet is located at the mixer start.
  • the mixer compressed air channel extends from the mixer start to the mixer end along the spray mixer.
  • this is usually arranged on a multi-component cartridge and protrudes away from it. Due to the arrangement of the mixer-compressed air inlet at the mixer start is no compressed air supply to the mixer end and thus no
  • Hose to the mixer end necessary.
  • the spray mixer can be introduced into narrow spaces without the risk that a compressed air hose hooked somewhere.
  • the compressed air supply to the mixer-compressed air inlet can be made perpendicular to the mixer longitudinal axis. But it can also be inclined relative to the mixer longitudinal axis and in particular in the direction of the mixer longitudinal axis.
  • a mixer inner housing is arranged, which receives the mixing element.
  • the mixer compressed air channel is formed between mixer inner housing and mixer outer housing.
  • Gap forms, which is used as a mixer compressed air channel. This results in a particularly simple construction of the spray mixer.
  • the mixer outer housing the mixer outer housing
  • the mixer outer housing, the mixer inner housing and the mixing element are connected to each other captive.
  • the individual components via an interaction of corresponding recesses or grooves and Noses or beads mutually fixed.
  • fixations are also referred to as clip or click connections.
  • the entire spray mixer forms a structural unit that is distributed as a unit. This is the setting up or connecting the spray mixer to a
  • Multi-component cartridge particularly simple because the said parts do not have to be assembled first, but the spray mixer can be used without previous assembly.
  • the spray mixer is intended to be connected in one step with a multi-component cartridge.
  • a multi-component cartridge By this is to be understood that without a previous assembly of individual component can be connected to the multi-component cartridge.
  • the spray mixer has a mixer inlet connection which is arranged at the mixer start and which is connected to a cartridge outlet connection of a multicomponent cartridge
  • the mixer inlet connection has at least one mixer inlet opening, via which the components can be supplied. It also includes the mixer air inlet.
  • Compressed air are produced, which allows a particularly simple handling of the spray mixer, since only one step is necessary to connect the spray mixer to the multi-component cartridge.
  • the spray mixer can be connected directly to the cartridge outlet connection of the multicomponent cartridge. But it is also possible that the connection takes place by means of a suitable connecting element, for example in the form of matching hoses.
  • the mixer input connection is oriented in particular in the direction of the mixer longitudinal axis.
  • This is meant that the components and the compressed air in the direction of the mixer longitudinal axis through the mixer Flow inlet connection. This achieves a particularly compact construction of the spray mixer.
  • the mixer input connection has two separate mixer inlet openings, that is to say a separate mixer inlet opening for each component. This enables a particularly effective mixing of the two components. If more than two components are to be mixed and sprayed with the spray mixer, the mixer input connection has a separate one, in particular for each component
  • the mixing element is designed in particular as a static mixing element.
  • a static mixer In contrast to a dynamic mixer, which has a rotating mixing element for mixing the components, a static mixer has a fixed mixing element, which allows by its special geometry efficient mixing of the components. This allows a particularly cost-effective design of the spray mixer.
  • the mixing element and the mixer input port are made in one piece.
  • the spray mixer has very few items, which makes its manufacture and its installation particularly simple and inexpensive. But it is also possible that the mixing element and the mixer input port are designed as two separate components.
  • the mixer outer housing the mixer outer housing
  • the spray mixer has a particularly low weight and is also inexpensive to manufacture.
  • the components may for example be made of polypropylene, polyamide, polycaprolactam (polyamide 6) or
  • Fig. 1 is a multi-component cartridge for receiving Fig. 1 a
  • Multi-component cartridge for holding flowable
  • Fig. 2 a connected to a multi-component cartridge
  • Fig. 3 shows a dispensing device for a multi-component cartridge of Fig. 1 and
  • a multi-component cartridge 10 has a first container 11 for receiving a first component and a second container 12 for receiving a second component.
  • the first and the second container 1 1, 12 have a cylindrical basic shape with a first cylinder axis 13 and a second cylinder axis 14.
  • the two containers 1 1, 12 are arranged parallel to the axis side by side.
  • the containers 1 1, 12 are connected to each other and have a minimum distance from each other. This results in a notch 15 between the two containers, which extends parallel to the two cylinder axes 13, 14.
  • Multi-component cartridge 10 is thus designed as a so-called side-by-side cartridge.
  • the container 1 1, 12 of the multi-component cartridge 10 have a same diameter.
  • a mixing ratio of the components when discharging from the containers 1 1, 12 is thus 1: 1.
  • the filling openings 16, 17 are closed in the illustration of FIG. 1, each with a piston 18, 19.
  • the pistons 18, 19 are used after filling the container 1 1, 12.
  • By moving the pistons 18, 19 away from the filling openings 16, 17, the components can be discharged via two cartridge outlet openings, which are arranged on a side of the multicomponent cartridge 10 opposite the filling openings 16, 17.
  • the cartridge openings are in the
  • Cartridge compressed air channel 20 The cartridge compressed air channel 20 has a circular cross section and runs from a cartridge compressed air inlet 21 to a cartridge cartridge, not shown in FIG. Compressed air outlet.
  • the cartridge compressed air inlet 21 is arranged in a plane with the filling openings 16, 17 of the container 1 1, 12.
  • the cartridge compressed air outlet is located in the area of the cartridge outlet openings.
  • the cartridge compressed air channel 20 thus extends over the entire length of the container 1 1, 12 and thus also the multi-component cartridge 10th
  • the first container 1 1, the second container 12 and the compressed air channel 20 are made in one piece. In addition, no separate components are necessary for the cartridge outlet openings and the cartridge compressed air outlet, not shown, so that thus the entire
  • Multi-component cartridge 10 is made in one piece.
  • Multi-component cartridge 10 is made of plastic by an injection molding method.
  • plastic for example, polypropylene, polyamide, polycaprolactam (polyamide 6) or polybutylene terephthalate can be used for this purpose.
  • polypropylene, polyamide, polycaprolactam (polyamide 6) or polybutylene terephthalate can be used for this purpose.
  • a spray mixer 22 is arranged.
  • the spray mixer 22 is connected to the multi-component cartridge 10 via a cartridge outlet connection (not shown in FIG. 1)
  • the spray mixer 22 for mixing and spraying at least two flowable components is shown in FIG. 2 in a sectional view. The section extends with respect to FIG. 1 between the two containers 1 1, 12 parallel to the cylinder axes 13, 14. In FIG. 2, a small part of the multi-component cartridge 10 is also shown. A portion of the container 1 1 of the multi-component cartridge 10, which lies behind the cutting plane is shown dotted for clarity.
  • the spray mixer 22 has a mainly tubular
  • Mixer outer housing 23 which extends in the direction of a mixer longitudinal axis 24 from a mixer start 25 to a distal mixer end 26. At the mixer beginning 25 of the spray mixer 22 with the
  • Multi-component cartridge 10 connected.
  • the mixer outer housing 23 has a constant cross section in a central region and tapers slightly towards the mixer end 26. On the opposite side to the mixer start 25, the mixer outer housing 23 widens and forms part of a mixer input port 27, by means of which the spray mixer 22 is connected to a cartridge outlet port 28 of the multi-component cartridge 10.
  • a mixer inner housing 29 is arranged, which has a contour of the mixer outer housing 23 corresponding outer contour, so that between the mixer outer housing 23 and the mixer inner housing 29 a
  • the mixer compressed air channel 30 can be fed via a mixer-compressed air inlet 31, which also forms part of the mixer input port 27, compressed air.
  • the mixer-compressed air inlet 31 is thus arranged at the mixer start 25.
  • the compressed air is conducted via the mixer compressed air channel 30 to a mixer compressed air outlet 32, which is located at the mixer end 26.
  • a static mixing element 33 is arranged, which serves for mixing of the two components.
  • Mixing element 33 is designed in one piece with a mixer inlet opening 34, via which a first component can be supplied to the spray mixer 22.
  • the mixing element 33 still has a second one
  • the mixer inlet 34 has a circular cross section and also forms part of the mixer input port 27th
  • the two mixer inlet openings are with corresponding
  • Cartridge outlet openings connected, wherein in FIG. 2, only one cartridge outlet opening 36 can be seen, which is connected to the mixer inlet opening 34.
  • the cartridge exit port 36 is part of the cartridge exit port 28.
  • the mixer inner housing 29 has a mixer outlet opening 35, via which the components mixed by the mixing element 33 can leave the mixer inner housing 29.
  • the mixer compressed air outlet 32 is arranged around the mixer outlet opening 35.
  • the mixed components exiting the mixer outlet 35 are atomized and sprayed.
  • grooves or the like can additionally be arranged, which provide for a swirling of the compressed air and thus to an effective atomization of the mixed components.
  • the mixer compressed air inlet 31 is connected to a cartridge compressed air outlet 37 of the multicomponent cartridge 10, which supplies compressed air from the cartridge compressed air channel 20.
  • the cartridge compressed air channel 20 bends towards towards mixer longitudinal axis 24.
  • the mixer compressed air inlet 31 and the cartridge compressed air outlet 37 have an annular cross section and are arranged around the mixer inlet openings 34 and the cartridge outlet openings 36.
  • the mixer compressed air inlet 31 is part of the mixer inlet port 27 and the cartridge compressed air outlet 37 is a part of the cartridge outlet port 28.
  • Mixer longitudinal axis 24 are thus oriented in the direction of the mixer longitudinal axis 24.
  • the connection between the mixer inlet port 27 and the cartridge outlet port 28 is secured by a union nut 38 disposed around the mixer compressed air inlet 31 and the cartridge compressed air outlet 37.
  • a union nut 38 disposed around the mixer compressed air inlet 31 and the cartridge compressed air outlet 37.
  • the union nut other fuses, such as a bayonet lock are possible.
  • the mixer outer housing 23, the mixer inner housing 29 and the mixing element 33 are connected to each other via known per se, not shown click connections with each other and are thus combined in a single unit.
  • the mixer input port 27 and the union nut 38 is captively connected to the other components, so that the entire spray mixer 22 forms a structural unit.
  • Multi-component cartridge 10 is placed and then secured the connection with the union nut 38. Setting up and saving is considered as one step in this process.
  • the individual components of the spray mixer 22 are by means of a
  • plastic for example, polypropylene, polyamide, polycaprolactam (polyamide 6) or polybutylene terephthalate can also be used for this purpose.
  • polypropylene, polyamide, polycaprolactam (polyamide 6) or polybutylene terephthalate can also be used for this purpose.
  • FIG. 3 diagrammatically shows a discharge device 40 in a sectional view.
  • the dispensing device 40 has a receiving element 41 for receiving a multi-component cartridge.
  • the receiving element 41 has a rectangular cross-section. Via a not-shown opening of the receiving element 41, a multi-component cartridge can be inserted from above into the receiving element 41.
  • the receiving member 41 On a front side 42 of the Austrag réelles 40, the receiving member 41 has an opening 43 which is positioned so that the cartridge output terminal of the
  • Multi-component cartridge can protrude through the opening 43.
  • the dispensing device 40 has a first actuating element 44 and a second actuating element 45.
  • the first actuating element 44 is arranged so that it can move the piston of the first container with an inserted multi-component cartridge and actuate it.
  • the second actuating element 45 is arranged so that it can move the piston of the second container with an inserted multi-component cartridge and actuate it.
  • the two actuating elements 44, 45 each have an actuating rod 46, 47, which can be displaced by means of compressed air in the direction of the opening 43.
  • the dispensing device 40 Arranged between the two actuating rods 46, 47 but in a different plane, the dispensing device 40 has a device compressed air outlet 48. Since the device compressed air output 48 is arranged in a different plane, it is shown in dashed lines in FIG. The device compressed air outlet 48 is arranged so that it is inserted when
  • the device compressed air output 48 is connected by means of a device compressed air channel 49 with a device compressed air input 50.
  • the discharge device 40 can be connected to a standard compressed air supply.
  • the device compressed air inlet 50 is arranged on a device handle 51, which is connected to the receiving element 41.
  • the device handle 51 serves to allow an operator to securely hold the dispenser 40.
  • an activation button 52 is arranged on the dispenser 51, by means of which the operator can trigger the dispensing, mixing and spraying of the components.
  • Fig. 4 is an alternative embodiment of a spray mixer
  • the spray mixer 122 according to FIG. 4 has a similar structure to that of the spray mixer 22 from FIG. 2. For this reason, only the
  • the spray mixer 122 of FIG. 4 has no annular mixer compressed air inlet, which is oriented in the direction of a mixer longitudinal axis 124. Instead, the
  • Spray mixer 122 has a mixer compressed air inlet 131 disposed at a mixer start 125 and oriented perpendicular to mixer longitudinal axis 124.
  • the mixer compressed air inlet 131 also opens into a mixer compressed air channel 130.
  • the spray mixer 122 can be connected to a standard compressed air supply.
  • a multicomponent cartridge, to which the spray mixer 122 of FIG. 4 can be connected, thus has no cartridge compressed air outlet, but only one or two cartridge outlet openings for the components.

Abstract

The invention relates to a spray mixer for mixing and spraying at least two flowable components. The spray mixer (22) is provided with a tubular outer mixer housing (23) which extends in the direction of a mixer longitudinal axis (24) from a mixer start (25) to a distal mixer end (26). A mixer inner housing (29) which accommodates a mixer element (33) is arranged in the mixer outer housing (23). A mixer compressed air inlet (31) is arranged at the mixer start (25). The mixer compressed air inlet (31) is connected by means of a mixer compressed air channel (30) to an annular mixer compressed air outlet (32) which encloses a mixer outlet opening (35). In the operation of the spray mixer (22), compressed air is supplied via the mixer compressed air inlet (31), flows through the mixer compressed air channel (30) to the mixer compressed air outlet (32) and atomises and sprays the material emerging from the mixer outlet opening (35). In order for the spray mixer to be easy to handle, the mixer outer housing (23), the mixer inner housing (29) and the mixer element (33) are combined in a single unit. This is achieved by connecting the indicated components to each other in a manner to secure against loss.

Description

Sprühmischer zum Mischen und Sprühen von mindestens zwei fliessfähigen Spray mixer for mixing and spraying of at least two flowable
Komponenten Die Erfindung betrifft einen Sprühmischer zum Mischen und Sprühen von mindestens zwei fliessfähigen Komponenten gemäß dem Oberbegriff des Anspruchs 1 . The invention relates to a spray mixer for mixing and spraying at least two flowable components according to the preamble of claim 1.
Mischer zum Mischen von mindestens zwei fliessfähigen Komponenten in Form von so genannten statischen Mischern sind beispielsweise in der EP-A- 0 749 776 und in der EP A 0 815 929 beschrieben. Diese sehr kompakten Mischer liefern trotz eines einfachen, materialsparenden Aufbaus ihrer Mischerstruktur gute Mischresultate, insbesondere auch beim Mischen von hochviskosen Stoffen wie beispielsweise Dichtmassen, Zweikomponenten- Schäumen oder Zweikomponenten-Klebstoffen. Üblicherweise sind solche statischen Mischer für den Einmalgebrauch ausgelegt und werden häufig für aushärtende Produkte verwendet, bei denen die Mischer praktisch nicht mehr gereinigt werden können. Mixers for mixing at least two flowable components in the form of so-called static mixers are described, for example, in EP-A-0 749 776 and in EP A 0 815 929. Despite their simple, material-saving construction of their mixer structure, these very compact mixers produce good mixing results, in particular also when mixing highly viscous substances such as, for example, sealants, two-component foams or two-component adhesives. Typically, such static mixers are designed for single use and are often used for curing products in which the mixer practically can not be cleaned.
Die zu mischenden Komponenten werden derartigen Mischern üblicherweise von einer Mehrkomponentenkartusche zugeführt. Der Mischer wird dazu an einer Kartuschen-Austrittsöffnung angeordnet, über die die zu mischenden Komponenten aus Behältern der Mehrkomponentenkartusche ausgetragen werden können. The components to be mixed are usually supplied to such mixers from a multi-component cartridge. The mixer is arranged at a cartridge outlet opening, via which the components to be mixed can be discharged from containers of the multi-component cartridge.
Bei einigen Anwendungen, bei denen solche statischen Mischer eingesetzt werden, ist es wünschenswert, die beiden Komponenten nach ihrer In some applications where such static mixers are used, it is desirable to have the two components after their
Durchmischung in dem Mischer auf ein Substrat aufzusprühen. Dazu werden die durchmischten Komponenten am Ausgang des Mischers durch Mixing in the mixer to spray on a substrate. For this, the mixed components at the outlet of the mixer through
Beaufschlagung mit einem unter Druck stehenden Medium wie beispielsweise Druckluft zerstäubt und können dann in Form eines Sprühstrahls oder Exposure to a pressurized medium such as compressed air atomized and can then in the form of a spray or
Sprühnebels auf das gewünschte Substrat aufgebracht werden. Mit dieser Technologie können insbesondere auch höher viskose Beschichtungsmedien, z. B. Polyurethane, Epoxidharze oder ähnliches verarbeitet werden. Ein Sprühmischer für solche Anwendungen ist beispielsweise in der US-B- 6,951 ,310 oder der EP 2 286 925 A2 offenbart. Bei dieser Vorrichtung ist ein rohrförmiges Mischergehäuse vorgesehen, das sich in Richtung einer Mischer-Längsachse von einem Mischer-Anfang bis zu einem distalen Mischer-Ende erstreckt. Das Mischergehäuse nimmt ein Mischelement für eine statische Mischung auf. An dem distalen Ende des Mischergehäuses ist eine Hülse angeordnet, der über einen senkrecht zur Mischer-Längsachse orientierten Mischer-Drucklufteingang Druckluft zugeführt werden kann. Die genannte Hülse und das Mischergehäuse bilden einen Mischer- Druckluftkanal, der in Richtung Mischer-Anfang abgeschlossen ist und am Mischer-Ende einen ringförmigen Mischer-Druckluftausgang aufweist, der eine Mischer-Austrittsöffnung umschliesst. Im Betrieb des Mischers wird über den Mischer-Drucklufteingang Druckluft zugeführt, welche über den Mischer- Druckluftkanal zum Mischer-Druckluftausgang strömt und das aus der Mischer-Austrittsöffnung austretende Material zerstäubt. Spray mist can be applied to the desired substrate. With this technology, especially higher-viscosity coating media, for. As polyurethanes, epoxy resins or the like can be processed. A spray mixer for such applications is disclosed, for example, in US Pat. No. 6,951,310 or EP 2 286 925 A2. In this apparatus, a tubular mixer housing is provided which extends in the direction of a mixer longitudinal axis from a mixer start to a distal mixer end. The mixer housing houses a mixing element for static mixing. At the distal end of the mixer housing a sleeve is arranged, which can be supplied via a perpendicular to the mixer longitudinal axis oriented mixer-compressed air inlet compressed air. The said sleeve and the mixer housing form a mixer compressed air channel, which is closed in the direction of the mixer start and at the mixer end has an annular mixer compressed air outlet, which encloses a mixer outlet opening. During operation of the mixer, compressed air is supplied via the mixer compressed air inlet, which flows via the mixer compressed air channel to the mixer compressed air outlet and atomizes the material emerging from the mixer outlet opening.
Die Zuführung von Druckluft an den Mischer-Drucklufteingang erfolgt über einen nicht näher beschriebenen Schlauch, der wegen der genannten Orientierung des Mischer-Drucklufteingangs ebenfalls senkrecht zur Mischer- Längsachse orientiert ist. Derartige Sprühmischer werden in Systemen zum Mischen und Sprühen von fliessfähigen Komponenten verwendet, die insbesondere für das Aufbringen von Beschichtungen bei der Wartung von Schiffskörpern, Pipelines und Stahlkonstruktionen wie beispielsweise Brücken eingesetzt werden. Dabei ist es auch notwendig, schwer zugängliche Stellen zu beschichten. Bei der Beschichtung derartiger Stellen kann es dazu kommen, dass man mitThe supply of compressed air to the mixer-compressed air inlet via a hose not described in detail, which is also oriented perpendicular to the mixer longitudinal axis because of the said orientation of the mixer-compressed air inlet. Such spray mixers are used in systems for mixing and spraying flowable components, which are used in particular for the application of coatings in the maintenance of hulls, pipelines and steel structures such as bridges. It is also necessary to coat hard to reach places. When coating such places, it can happen that one with
Schläuchen oder Leitungen des Beschichtungssystems, wie beispielsweise mit dem oben beschriebenen Druckluftschlauch an Vorsprüngen des zu beschichtenden Bauteils hängen bleibt. Dabei können zum einen die genannten Schläuche und Leitungen beschädigt werden, was zum Ausfall des Beschichtungssystems und damit zu Reparaturkosten und Hoses or lines of the coating system, such as with the above-described compressed air hose to projections of the component to be coated gets stuck. On the one hand, the said hoses and lines can be damaged, resulting in failure of the coating system and thus repair costs and
Verzögerungen bei den Wartungsarbeiten führt. Zum anderen muss ein Bediener des Beschichtungssystenns an engen Stellen sehr vorsichtig und damit auch langsam arbeiten, was zu einem hohen Zeit- und damit auch Kostenaufwand bei der Verwendung des Beschichtungssystems führen kann. Delays in maintenance work leads. On the other hand, one must The operator of the coating system must work very cautiously and thus slowly in narrow places, which can lead to a high time and thus also a cost expenditure when using the coating system.
In der US 6,131 ,823 wird ein Sprühmischer beschrieben, der einen Handgriff und ein Mischeraussengehause in Form einer Hülse aufweist. Der Handgriff und die Hülse sind aus Aluminium hergestellt. Auf den Handgriff kann in einem ersten Arbeitsschritt ein aus Kunststoff gefertigter Mischer, der aus einem Mischerinnengehäuse und einem darin angeordneten Mischelement besteht, aufgesetzt werden. In einem zweiten Arbeitsschritt kann die Hülse über den Mischer gestülpt und mit dem Handgriff verschraubt werden. In US 6,131, 823 a spray mixer is described, which has a handle and a mixer outer housing in the form of a sleeve. The handle and the sleeve are made of aluminum. In a first step, a plastic mixer, which consists of a mixer inner housing and a mixing element arranged therein, can be placed on the handle. In a second step, the sleeve can be slipped over the mixer and bolted to the handle.
Zwischen der Hülse und dem Mischerinnengehäuse bildet sich ein Between the sleeve and the mixer inner housing forms a
Druckluftkanal aus, über den Druckluft vom Handgriff zu einem Auslass geführt werden kann. Der Mischer ist dabei nur zum einmaligen Gebrauch vorgesehen, wobei die Hülse mehrfach verwendet wird. Der Handgriff weist Anschlüsse für die fliessfähigen Komponenten und Druckluft auf. Compressed air channel, via the compressed air from the handle can be led to an outlet. The mixer is intended only for single use, the sleeve is used several times. The handle has connections for the flowable components and compressed air.
Die US 4,255,125 beschreibt eine Zerstäubungsvorrichtung für einen brennbaren Stoff mit einer Zuführung für den brennbaren Stoff und einer weiteren Zuführung für ein Zerstäubungsgas. Der brennbare Stoff und das Zerstäubergas werden innerhalb der Zerstäubungsvorrichtung in einer Zerstäubungskammer zusammengeführt und anschliessend durch ein US 4,255,125 describes a sputtering apparatus for a combustible with a combustible feed and another sputtering gas feed. The combustible material and the Zerstäubergas be brought together within the sputtering in a sputtering chamber and then by a
Mischelement in Form von gekrümmten Elementen geleitet. Mixed element passed in the form of curved elements.
Demgegenüber ist es die Aufgabe der Erfindung, einen Sprühmischer zum Mischen und Sprühen von mindestens zwei fliessfähigen Komponenten vorzuschlagen, welcher einfach handhabbar ist. Erfindungsgemäss wird die Aufgabe durch einen Sprühmischer mit den Merkmalen des Anspruchs 1 gelöst. In contrast, it is the object of the invention to provide a spray mixer for mixing and spraying of at least two flowable components, which is easy to handle. According to the invention the object is achieved by a spray mixer with the features of claim 1.
Der Sprühmischer zum Mischen und Sprühen von mindestens zwei fliessfähigen Komponenten verfügt über ein rohrförmiges The spray mixer for mixing and spraying at least two flowable components has a tubular
Mischeraussengehäuse, das sich in Richtung einer Mischer-Längsachse von einem Mischer-Anfang bis zu einem distalen Mischer-Ende erstreckt. A mixer outer housing extending in the direction of a mixer longitudinal axis from a mixer start to a distal mixer end.
Ausserdem weist er ein innerhalb des Mischeraussengehäuses He also has a within the mixer outer housing
angeordnetes Mischerinnengehäuse, mindestens ein im Mischerinnengehäuse angeordnetes Mischelement zum Durchmischen der Komponenten und einen Mischer-Druckluftkanal auf, welcher von einem Mischer-Drucklufteingang zu einer Mischer-Austrittsöffnung verläuft. arranged mixer inner housing, at least one in Mixer inner housing arranged mixing element for mixing the components and a mixer-compressed air channel, which extends from a mixer-compressed air inlet to a mixer outlet opening.
Der Mischer-Drucklufteingang ist am Mischer-Anfang angeordnet. Damit erstreckt sich der Mischer-Druckluftkanal vom Mischer-Anfang zum Mischer- Ende entlang des Sprühmischers. Im Betrieb des Sprühmischers ist dieser meist an einer Mehrkomponentenkartusche angeordnet und ragt von dieser weg. Durch die Anordnung des Mischer-Drucklufteingangs am Mischer- Anfang ist keine Druckluftzuführung zum Mischer-Ende und damit kein The mixer compressed air inlet is located at the mixer start. Thus, the mixer compressed air channel extends from the mixer start to the mixer end along the spray mixer. During operation of the spray mixer, this is usually arranged on a multi-component cartridge and protrudes away from it. Due to the arrangement of the mixer-compressed air inlet at the mixer start is no compressed air supply to the mixer end and thus no
Schlauch zum Mischer-Ende notwendig. Damit kann der Sprühmischer auch in enge Zwischenräume eingeführt werden, ohne dass die Gefahr besteht, dass sich ein Druckluftschlauch irgendwo verhakt. Hose to the mixer end necessary. Thus, the spray mixer can be introduced into narrow spaces without the risk that a compressed air hose hooked somewhere.
Die Druckluftzuführung zum Mischer-Drucklufteingang kann senkrecht zur Mischer-Längsachse erfolgen. Sie kann aber auch gegenüber der Mischer- Längsachse geneigt und insbesondere in Richtung der Mischer-Längsachse erfolgen. The compressed air supply to the mixer-compressed air inlet can be made perpendicular to the mixer longitudinal axis. But it can also be inclined relative to the mixer longitudinal axis and in particular in the direction of the mixer longitudinal axis.
Innerhalb des Mischeraussengehäuses ist ein Mischerinnengehäuse angeordnet, welches das Mischelement aufnimmt. Der Mischer-Druckluftkanal ist zwischen Mischerinnengehäuse und Mischeraussengehäuse ausgebildet. Das Mischeraussengehäuse und das Mischerinnengehäuse sind also so ausgeführt, dass sich im montierten Zustand zwischen beiden ein Within the mixer outer housing, a mixer inner housing is arranged, which receives the mixing element. The mixer compressed air channel is formed between mixer inner housing and mixer outer housing. The mixer outer housing and the mixer inner housing are thus designed so that in the assembled state between the two
Zwischenraum ausbildet, der als Mischer-Druckluftkanal genutzt wird. Damit ergibt sich ein besonders einfacher Aufbau des Sprühmischers. Gap forms, which is used as a mixer compressed air channel. This results in a particularly simple construction of the spray mixer.
Erfindungsgemäss sind das Mischeraussengehäuse, das According to the invention, the mixer outer housing, the
Mischerinnengehäuse und das Mischelement in einer Baueinheit Mixer inner housing and the mixing element in a structural unit
zusammengefasst. Dies wird erreicht, indem das Mischeraussengehäuse, das Mischerinnengehäuse und das Mischelement verliersicher miteinander verbunden sind. Dazu sind insbesondere die einzelnen Bauteile über ein Zusammenwirken von korrespondierenden Ausnehmungen bzw. Nuten und Nasen bzw. Wülsten gegenseitig fixiert. Derartige Fixierungen werden auch als Clip- oder Click-Verbindungen bezeichnet. Insbesondere bildet der gesamte Sprühmischer eine Baueinheit, die als eine Einheit vertrieben wird. Damit ist das Aufsetzen oder Verbinden des Sprühmischers auf eine summarized. This is achieved by the mixer outer housing, the mixer inner housing and the mixing element are connected to each other captive. For this purpose, in particular the individual components via an interaction of corresponding recesses or grooves and Noses or beads mutually fixed. Such fixations are also referred to as clip or click connections. In particular, the entire spray mixer forms a structural unit that is distributed as a unit. This is the setting up or connecting the spray mixer to a
Mehrkomponentenkartusche besonders einfach, da die genannten Teile nicht zuerst zusammengesetzt werden müssen, sondern der Sprühmischer ohne vorherige Montage verwendet werden kann. Multi-component cartridge particularly simple because the said parts do not have to be assembled first, but the spray mixer can be used without previous assembly.
In Ausgestaltung der Erfindung ist der Sprühmischer dazu vorgesehen, in einem Arbeitsschritt mit einer Mehrkomponentenkartusche verbunden zu werden. Darunter ist zu verstehen, dass ohne eine vorherige Montage einzelner Bauteil mit der Mehrkomponentenkartusche verbunden werden kann. In an embodiment of the invention, the spray mixer is intended to be connected in one step with a multi-component cartridge. By this is to be understood that without a previous assembly of individual component can be connected to the multi-component cartridge.
In Ausgestaltung der Erfindung weist der Sprühmischer einen am Mischer- Anfang angeordneten Mischer-Eingangsanschluss auf, welcher an einen Kartuschen-Ausgangsanschluss einer Mehrkomponentenkartusche In an embodiment of the invention, the spray mixer has a mixer inlet connection which is arranged at the mixer start and which is connected to a cartridge outlet connection of a multicomponent cartridge
anschliessbar ist. Der Mischer-Eingangsanschluss verfügt über wenigstens eine Mischer-Eintrittsöffnung, über welche die Komponenten zugeführt werden können. Er umfasst ausserdem den Mischer-Drucklufteingang. Damit können über den einen Mischer-Eingangsanschluss sowohl die Verbindungen für die zu mischenden Komponenten, als auch die Verbindung für die is connectable. The mixer inlet connection has at least one mixer inlet opening, via which the components can be supplied. It also includes the mixer air inlet. Thus, both the connections for the components to be mixed, as well as the connection for the one mixer input port
Druckluft hergestellt werden, was eine besonders einfache Handhabung des Sprühmischers ermöglicht, da zum Anschliessen des Sprühmischers an die Mehrkomponentenkartusche nur ein Arbeitsschritt notwendig ist.  Compressed air are produced, which allows a particularly simple handling of the spray mixer, since only one step is necessary to connect the spray mixer to the multi-component cartridge.
Der Sprühmischer kann dabei insbesondere direkt an den Kartuschen- Ausgangsanschluss der Mehrkomponentenkartusche angeschlossen werden. Es ist aber auch möglich, dass die Verbindung mittels eines geeigneten Verbindungselements, beispielsweise in Form von passenden Schläuchen erfolgt. In particular, the spray mixer can be connected directly to the cartridge outlet connection of the multicomponent cartridge. But it is also possible that the connection takes place by means of a suitable connecting element, for example in the form of matching hoses.
Der Mischer-Eingangsanschluss ist insbesondere in Richtung der Mischer- Längsachse orientiert. Darunter ist zu verstehen, dass die Komponenten und die Druckluft in Richtung der Mischer-Längsachse durch den Mischer- Eingangsanschluss fliessen. Damit wird ein besonders kompakter Aufbau des Sprühmischers erreicht. The mixer input connection is oriented in particular in the direction of the mixer longitudinal axis. By this is meant that the components and the compressed air in the direction of the mixer longitudinal axis through the mixer Flow inlet connection. This achieves a particularly compact construction of the spray mixer.
Für diese Ausgestaltung des erfindungsgemässen Sprühmischers ist eine besonders ausgestaltete Mehrkomponentenkartusche notwendig, die einen Kartuschen-Druckluftkanal mit einem Kartuschen-Drucklufteingang und einem Kartuschen-Druckluftausgang aufweist. Damit ist für die Druckluftversorgung des Sprühmischers überhaupt kein separater Druckluftschlauch mehr notwendig, was eine besonders einfache und sichere Handhabung des Sprühmischers erlaubt. Der Mischer-Eingangsanschluss weist insbesondere zwei getrennte Mischer- Eintrittsöffnungen, also für jede Komponente eine separate Mischer- Eingangsöffnung auf. Damit wird eine besonders effektive Durchmischung der beiden Komponenten ermöglicht. Falls mit dem Sprühmischer mehr als zwei Komponenten gemischt und versprüht werden sollen, weist der Mischer- Eingangsanschluss insbesondere für jede Komponente eine separate For this embodiment of the inventive spray mixer a specially designed multi-component cartridge is necessary, which has a cartridge compressed air channel with a cartridge compressed air inlet and a cartridge compressed air outlet. This is no longer necessary for the compressed air supply of the spray mixer separate compressed air hose, which allows a particularly simple and safe handling of the spray mixer. In particular, the mixer input connection has two separate mixer inlet openings, that is to say a separate mixer inlet opening for each component. This enables a particularly effective mixing of the two components. If more than two components are to be mixed and sprayed with the spray mixer, the mixer input connection has a separate one, in particular for each component
Mischer-Eintrittsöffnung auf. Mixer inlet opening.
Das Mischelement ist insbesondere als ein statisches Mischelement ausgeführt. Im Gegensatz zu einem dynamischen Mischer, welcher ein rotierendes Mischelement zum Mischen der Komponenten aufweist, verfügt ein statischer Mischer über ein fest stehendes Mischelement, welches durch seine spezielle Geometrie eine effiziente Mischung der Komponenten ermöglicht. Dies ermöglicht einen besonders kostengünstigen Aufbau des Sprühmischers. The mixing element is designed in particular as a static mixing element. In contrast to a dynamic mixer, which has a rotating mixing element for mixing the components, a static mixer has a fixed mixing element, which allows by its special geometry efficient mixing of the components. This allows a particularly cost-effective design of the spray mixer.
In Ausgestaltung der Erfindung sind das Mischelement und der Mischer- Eingangsanschluss einstückig ausgeführt. Damit weist der Sprühmischer besonders wenige Einzelteile auf, was seine Herstellung und seine Montage besonders einfach und kostengünstig macht. Es ist aber auch möglich, dass das Mischelement und der Mischer- Eingangsanschluss als zwei getrennte Bauteile ausgeführt sind. In an embodiment of the invention, the mixing element and the mixer input port are made in one piece. Thus, the spray mixer has very few items, which makes its manufacture and its installation particularly simple and inexpensive. But it is also possible that the mixing element and the mixer input port are designed as two separate components.
In Ausgestaltung der Erfindung sind das Mischeraussengehäuse, das In an embodiment of the invention, the mixer outer housing, the
Mischerinnengehäuse und das Mischelement aus Kunststoff ausgeführt. Damit weist der Sprühmischer ein besonders geringes Gewicht auf und ist ausserdem kostengünstig herzustellen. Die Bauteile können beispielsweise aus Polypropylen, Polyamid, Polycaprolactam (Polyamid 6) oder Mixer inner housing and the mixing element made of plastic. Thus, the spray mixer has a particularly low weight and is also inexpensive to manufacture. The components may for example be made of polypropylene, polyamide, polycaprolactam (polyamide 6) or
Polybutylenterephthalat bestehen. Es sind aber auch andere geeignete Kunststoffe möglich. Die Herstellung des Mischeraussengehäuses, des Mischerinnengehäuses und des Mischelements erfolgt insbesondere mittels eines Polybutylene terephthalate exist. But there are also other suitable plastics possible. The preparation of the mixer outer housing, the mixer inner housing and the mixing element takes place in particular by means of a
Spritzgussverfahrens. Die Bauteile können damit einfach in sehr grossen Stückzahlen und besonders kostengünstig hergestellt werden. Injection molding process. The components can thus be easily manufactured in very large numbers and particularly cost.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich anhand der nachfolgenden Beschreibung von Ausführungsbeispielen sowie anhand der Zeichnungen, in welchen gleiche oder funktionsgleiche Elemente mit identischen Bezugszeichen versehen sind. Further advantages, features and details of the invention will become apparent from the following description of exemplary embodiments and with reference to the drawings, in which the same or functionally identical elements are provided with identical reference numerals.
Dabei zeigen: Showing:
Fig. 1 eine Mehrkomponentenkartusche zur Aufnahme von Fig. 1 eine Fig. 1 is a multi-component cartridge for receiving Fig. 1 a
Mehrkomponentenkartusche zur Aufnahme von fliessfähigen Multi-component cartridge for holding flowable
Komponenten mit aufgestecktem Sprühmischer, Components with attached spray mixer,
Fig. 2 einen an eine Mehrkomponentenkartusche angeschlossenen Fig. 2 a connected to a multi-component cartridge
Sprühmischer,  spray mixer,
Fig. 3 ein Austraggerät für eine Mehrkomponentenkartusche aus Fig. 1 und Fig. 3 shows a dispensing device for a multi-component cartridge of Fig. 1 and
Fig. 4 einen Sprühmischer in einer zweiten Ausführungsform. Gemäss Fig. 1 weist eine Mehrkomponentenkartusche 10 einen ersten Behälter 1 1 zur Aufnahme einer ersten Komponente und einen zweiten Behälter 12 zur Aufnahme einer zweiten Komponente auf. Der erste und der zweite Behälter 1 1 , 12 haben eine zylinderförmige Grundform mit einer ersten Zylinderachse 13 und einer zweiten Zylinderachse 14. Die beiden Behälter 1 1 , 12 sind achsparallel nebeneinander angeordnet. Die Behälter 1 1 , 12 sind miteinander verbunden und weisen einen minimalen Abstand zueinander auf. Damit ergibt sich zwischen den beiden Behältern eine Kerbe 15, die parallel zu den beiden Zylinderachsen 13, 14 verläuft. Die 4 shows a spray mixer in a second embodiment. According to FIG. 1, a multi-component cartridge 10 has a first container 11 for receiving a first component and a second container 12 for receiving a second component. The first and the second container 1 1, 12 have a cylindrical basic shape with a first cylinder axis 13 and a second cylinder axis 14. The two containers 1 1, 12 are arranged parallel to the axis side by side. The containers 1 1, 12 are connected to each other and have a minimum distance from each other. This results in a notch 15 between the two containers, which extends parallel to the two cylinder axes 13, 14. The
Mehrkomponentenkartusche 10 ist damit als eine so genannte Side-by-Side- Kartusche ausgeführt. Die Behälter 1 1 , 12 der Mehrkomponentenkartusche 10 weisen einen selben Durchmesser auf. Ein Mischungsverhältnis der Komponenten beim Austragen aus den Behältern 1 1 , 12 beträgt damit 1 :1 . Es sind aber auch andere Durchmesser- und damit Mischungsverhältnisse, wie beispielsweise 1 :2, 1 :4, 1 :10 oder höher möglich. Multi-component cartridge 10 is thus designed as a so-called side-by-side cartridge. The container 1 1, 12 of the multi-component cartridge 10 have a same diameter. A mixing ratio of the components when discharging from the containers 1 1, 12 is thus 1: 1. But there are also other diameter and thus mixing ratios, such as 1: 2, 1: 4, 1: 10 or higher possible.
An einer Stirnseite der Behälter 1 1 , 12 weisen diese jeweils eine Füllöffnung 16, 17 auf, die sich über die gesamte Stirnseite der Behälter 1 1 , 12 erstreckt. Über die Füllöffnungen 16, 17 können die Behälter 1 1 , 12 mit einer At one end face of the containers 1 1, 12, these each have a filling opening 16, 17, which extends over the entire end face of the container 1 1, 12. About the filling openings 16, 17, the container 1 1, 12 with a
entsprechenden fliessfähigen Komponente befüllt werden. Die Füllöffnungen 16, 17 sind in der Darstellung der Fig. 1 mit jeweils einem Kolben 18, 19 verschlossen. Die Kolben 18, 19 werden nach dem Befüllen der Behälter 1 1 , 12 eingesetzt. Durch Verschieben der Kolben 18, 19 von den Füllöffnungen 16, 17 weg können die Komponenten über zwei Kartuschen- Austrittsöffnungen, die auf einer den Füllöffnungen 16, 17 gegenüber liegenden Seite der Mehrkomponentenkartusche 10 angeordnet sind, ausgetragen werden. Die Kartuschen-Aust ttsöffnungen sind in der corresponding flowable component to be filled. The filling openings 16, 17 are closed in the illustration of FIG. 1, each with a piston 18, 19. The pistons 18, 19 are used after filling the container 1 1, 12. By moving the pistons 18, 19 away from the filling openings 16, 17, the components can be discharged via two cartridge outlet openings, which are arranged on a side of the multicomponent cartridge 10 opposite the filling openings 16, 17. The cartridge openings are in the
Darstellung der Fig. 1 nicht zu sehen. Representation of Fig. 1 can not be seen.
In der Kerbe 15 zwischen den beiden Behältern 1 1 , 12 verläuft ein In the notch 15 between the two containers 1 1, 12 extends
Kartuschen-Druckluftkanal 20. Der Kartuschen-Druckluftkanal 20 weist einen kreisrunden Querschnitt auf und verläuft von einem Kartuschen- Drucklufteingang 21 zu einem in der Fig. 1 nicht dargestellten Kartuschen- Druckluftausgang. Der Kartuschen-Drucklufteingang 21 ist in einer Ebene mit den Füllöffnungen 16, 17 der Behälter 1 1 , 12 angeordnet. Der Kartuschen- Druckluftausgang befindet sich im Bereich der Kartuschen-Austrittsöffnungen. Der Kartuschen-Druckluftkanal 20 verläuft damit über die gesamte Länge der Behälter 1 1 , 12 und damit auch der Mehrkomponentenkartusche 10. Cartridge compressed air channel 20. The cartridge compressed air channel 20 has a circular cross section and runs from a cartridge compressed air inlet 21 to a cartridge cartridge, not shown in FIG. Compressed air outlet. The cartridge compressed air inlet 21 is arranged in a plane with the filling openings 16, 17 of the container 1 1, 12. The cartridge compressed air outlet is located in the area of the cartridge outlet openings. The cartridge compressed air channel 20 thus extends over the entire length of the container 1 1, 12 and thus also the multi-component cartridge 10th
Der erste Behälter 1 1 , der zweite Behälter 12 und der Druckluftkanal 20 sind einstückig ausgeführt. Ausserdem sind für die nicht dargestellten Kartuschen- Austrittsöffnungen und den Kartuschen-Druckluftausgang ebenfalls keine separaten Bauteile notwendig, so dass damit die gesamte The first container 1 1, the second container 12 and the compressed air channel 20 are made in one piece. In addition, no separate components are necessary for the cartridge outlet openings and the cartridge compressed air outlet, not shown, so that thus the entire
Mehrkomponentenkartusche 10 einstückig ausgeführt ist. Die Multi-component cartridge 10 is made in one piece. The
Mehrkomponentenkartusche 10 wird mittels eines Spritzgussverfahrens aus Kunststoff hergestellt. Dazu kann beispielsweise Polypropylen, Polyamid, Polycaprolactam (Polyamid 6) oder Polybutylenterephthalat verwendet werden. Auf der den Füllöffnungen 16, 17 gegenüber liegenden Seite der  Multi-component cartridge 10 is made of plastic by an injection molding method. For example, polypropylene, polyamide, polycaprolactam (polyamide 6) or polybutylene terephthalate can be used for this purpose. On the filling openings 16, 17 opposite side of
Mehrkomponentenkartusche 10 ist ein Sprühmischer 22 angeordnet. Der Sprühmischer 22 ist über einen in der Fig. 1 nicht dargestellten Kartuschen- Ausgangsanschluss so an die Mehrkomponentenkartusche 10  Multi-component cartridge 10, a spray mixer 22 is arranged. The spray mixer 22 is connected to the multi-component cartridge 10 via a cartridge outlet connection (not shown in FIG. 1)
angeschlossen, dass Verbindungen zu den Kartuschen-Austrittsöffnungen und zum Kartuschen-Druckluftausgang bestehen. Mit dem Sprühmischer 22 werden die aus den Behältern 1 1 , 12 ausgetragenen Komponenten vermischt und mittels der über den Kartuschen-Druckluftkanal 20 zugeführten Druckluft zerstäubt und versprüht. Der Aufbau des Sprühmischers 22 ist in Fig. 2 genauer dargestellt. Der Sprühmischer 22 zum Mischen und Sprühen von mindestens zwei fliessfähigen Komponenten ist in der Fig. 2 in einer Schnittdarstellung dargestellt. Der Schnitt verläuft bezüglich der Fig. 1 zwischen den beiden Behältern 1 1 , 12 parallel zu den Zylinderachsen 13, 14. In der Fig. 2 ist ausserdem noch ein kleiner Teil der Mehrkomponentenkartusche 10 dargestellt. Ein Teil des Behälters 1 1 der Mehrkomponentenkartusche 10, der hinter der Schnitteebene liegt, ist zum besseren Verständnis gepunktet dargestellt. Der Sprühmischer 22 verfügt über ein hauptsächlich rohrförmiges connected to the cartridge outlet ports and the cartridge compressed air outlet. With the spray mixer 22, the discharged from the containers 1 1, 12 components are mixed and atomized and sprayed by means of the compressed air channel 20 via the compressed air channel supplied compressed air. The construction of the spray mixer 22 is shown in more detail in FIG. The spray mixer 22 for mixing and spraying at least two flowable components is shown in FIG. 2 in a sectional view. The section extends with respect to FIG. 1 between the two containers 1 1, 12 parallel to the cylinder axes 13, 14. In FIG. 2, a small part of the multi-component cartridge 10 is also shown. A portion of the container 1 1 of the multi-component cartridge 10, which lies behind the cutting plane is shown dotted for clarity. The spray mixer 22 has a mainly tubular
Mischeraussengehause 23, das sich in Richtung einer Mischer-Längsachse 24 von einem Mischer-Anfang 25 bis zu einem distalen Mischer-Ende 26 erstreckt. Am Mischer-Anfang 25 ist der Sprühmischer 22 mit der Mixer outer housing 23, which extends in the direction of a mixer longitudinal axis 24 from a mixer start 25 to a distal mixer end 26. At the mixer beginning 25 of the spray mixer 22 with the
Mehrkomponentenkartusche 10 verbunden. Multi-component cartridge 10 connected.
Das Mischeraussengehäuse 23 weist in einem mittleren Bereich einen konstanten Querschnitt auf und verjüngt sich ein wenig zum Mischer-Ende 26 hin. Auf der gegenüberliegenden Seite zum Mischer-Anfang 25 weitet sich das Mischeraussengehäuse 23 auf und bildet einen Teil eines Mischer- Eingangsanschlusses 27, mittels welchem der Sprühmischer 22 an einen Kartuschen-Ausgangsanschluss 28 der Mehrkomponentenkartusche 10 angeschlossen ist. The mixer outer housing 23 has a constant cross section in a central region and tapers slightly towards the mixer end 26. On the opposite side to the mixer start 25, the mixer outer housing 23 widens and forms part of a mixer input port 27, by means of which the spray mixer 22 is connected to a cartridge outlet port 28 of the multi-component cartridge 10.
Innerhalb des Mischeraussengehäuses 23 ist ein Mischerinnengehäuse 29 angeordnet, welches eine der Kontur des Mischeraussengehäuses 23 korrespondierende Aussenkontur aufweist, so dass sich zwischen dem Mischeraussengehäuse 23 und dem Mischerinnengehäuse 29 ein Within the mixer outer housing 23, a mixer inner housing 29 is arranged, which has a contour of the mixer outer housing 23 corresponding outer contour, so that between the mixer outer housing 23 and the mixer inner housing 29 a
ringförmiger Hohlraum ergibt, der als ein Mischer-Druckluftkanal 30 dient. Dem Mischer-Druckluftkanal 30 kann über einen Mischer-Drucklufteingang 31 , der ebenfalls einen Teil des Mischer-Eingangsanschlusses 27 bildet, Druckluft zugeführt werden. Der Mischer-Drucklufteingang 31 ist damit am Mischer-Anfang 25 angeordnet. Die Druckluft wird über den Mischer- Druckluftkanal 30 zu einem Mischer-Druckluftausgang 32 geleitet, der sich am Mischer-Ende 26 befindet. annular cavity which serves as a mixer compressed air passage 30. The mixer compressed air channel 30 can be fed via a mixer-compressed air inlet 31, which also forms part of the mixer input port 27, compressed air. The mixer-compressed air inlet 31 is thus arranged at the mixer start 25. The compressed air is conducted via the mixer compressed air channel 30 to a mixer compressed air outlet 32, which is located at the mixer end 26.
Innerhalb des Mischerinnengehäuses 29 ist ein statisches Mischelement 33 angeordnet, das zum Mischen der beiden Komponenten dient. Das Within the mixer inner housing 29, a static mixing element 33 is arranged, which serves for mixing of the two components. The
Mischelement 33 ist einstückig mit einer Mischer-Eintrittsöffnung 34 ausgeführt, über welche eine erste Komponente dem Sprühmischer 22 zugeführt werden kann. Das Mischelement 33 weist noch eine zweite Mixing element 33 is designed in one piece with a mixer inlet opening 34, via which a first component can be supplied to the spray mixer 22. The mixing element 33 still has a second one
Mischer-Eintrittsöffnung auf, über die eine zweite Komponente zugeführt werden kann. Diese liegt aber nicht in der dargestellten Schnittebene, weshalb diese zweite Mischer-Eintrittsöffnung in der Fig. 2 nicht dargestellt ist. Die Mischer-Eintrittsöffnung 34 weist einen kreisrunden Querschnitt auf und bildet ebenfalls einen Teil des Mischer-Eingangsanschlusses 27. Mixer inlet opening, via which a second component can be supplied. However, this is not in the illustrated section plane, why this second mixer inlet opening in Fig. 2 is not shown. The mixer inlet 34 has a circular cross section and also forms part of the mixer input port 27th
Die beiden Mischer-Eintrittsöffnungen sind mit korrespondierenden The two mixer inlet openings are with corresponding
Kartuschen-Austrittsöffnungen verbunden, wobei in der Fig. 2 nur eine Kartuschen-Austrittsöffnung 36 zu sehen ist, die mit der Mischer- Eintrittsöffnung 34 verbunden ist. Die Kartuschen-Austrittsöffnung 36 ist Teil des Kartuschen-Ausgangsanschlusses 28. Cartridge outlet openings connected, wherein in FIG. 2, only one cartridge outlet opening 36 can be seen, which is connected to the mixer inlet opening 34. The cartridge exit port 36 is part of the cartridge exit port 28.
Am Mischer-Ende 26 weist das Mischerinnengehäuse 29 eine Mischer- Austrittsöffnung 35 auf, über welche die durch das Mischelement 33 gemischten Komponenten das Mischerinnengehäuse 29 verlassen können. Der Mischer-Druckluftausgang 32 ist um die Mischer-Austrittsöffnung 35 herum angeordnet. Damit werden die aus der Mischer-Austrittsöffnung 35 austretenden gemischten Komponenten vernebelt und versprüht. Im Bereich der Mischer-Austrittsöffnung 35 und des Mischer-Druckluftausgangs 32 können auch zusätzlich Nuten oder ähnliches angeordnet sein, die für eine Verwirbelung der Druckluft und damit zu einer effektiven Vernebelung der gemischten Komponenten sorgen. At the mixer end 26, the mixer inner housing 29 has a mixer outlet opening 35, via which the components mixed by the mixing element 33 can leave the mixer inner housing 29. The mixer compressed air outlet 32 is arranged around the mixer outlet opening 35. Thus, the mixed components exiting the mixer outlet 35 are atomized and sprayed. In the region of the mixer outlet opening 35 and the mixer compressed air outlet 32, grooves or the like can additionally be arranged, which provide for a swirling of the compressed air and thus to an effective atomization of the mixed components.
Der Mischer-Drucklufteingang 31 ist mit einem Kartuschen-Druckluftausgang 37 der Mehrkomponentenkartusche 10 verbunden, welcher vom Kartuschen- Druckluftkanal 20 mit Druckluft versorgt. Der Kartuschen-Druckluftkanal 20 knickt dazu in Richtung Mischer-Längsachse 24 ab. Der Mischer- Drucklufteingang 31 und der Kartuschen-Druckluftausgang 37 weisen einen ringförmigen Querschnitt auf und sind um die Mischer-Eintrittsöffnungen 34 und Kartuschen-Austrittsöffnungen 36 angeordnet. Der Mischer- Drucklufteingang 31 ist dabei ein Teil des Mischer-Eingangsanschlusses 27 und der Kartuschen-Druckluftausgang 37 ein Teil des Kartuschen- Ausgangsanschlusses 28. The mixer compressed air inlet 31 is connected to a cartridge compressed air outlet 37 of the multicomponent cartridge 10, which supplies compressed air from the cartridge compressed air channel 20. The cartridge compressed air channel 20 bends towards towards mixer longitudinal axis 24. The mixer compressed air inlet 31 and the cartridge compressed air outlet 37 have an annular cross section and are arranged around the mixer inlet openings 34 and the cartridge outlet openings 36. The mixer compressed air inlet 31 is part of the mixer inlet port 27 and the cartridge compressed air outlet 37 is a part of the cartridge outlet port 28.
Die Komponenten und die Druckluft strömen vom Kartuschen- Ausgangsanschluss 28 zum Mischer-Eingangsanschluss 27 entlang derThe components and compressed air flow from the cartridge output port 28 to the mixer input port 27 along the
Mischer-Längsachse 24. Sie sind damit in Richtung der Mischer-Längsachse 24 orientiert. Die Verbindung zwischen dem Mischer-Eingangsanschluss 27 und dem Kartuschen-Ausgangsanschluss 28 wird durch eine Überwurfmutter 38 gesichert, die um den Mischer-Drucklufteingang 31 und den Kartuschen- Druckluftausgang 37 herum angeordnet ist. Statt der Überwurfmutter sind auch andere Sicherungen, wie beispielsweise ein Bajonett-Verschluss möglich. Mixer longitudinal axis 24. They are thus oriented in the direction of the mixer longitudinal axis 24. The connection between the mixer inlet port 27 and the cartridge outlet port 28 is secured by a union nut 38 disposed around the mixer compressed air inlet 31 and the cartridge compressed air outlet 37. Instead of the union nut other fuses, such as a bayonet lock are possible.
Das Mischeraussengehäuse 23, das Mischerinnengehäuse 29 und das Mischelement 33 sind über an sich bekannte, nicht näher dargestellte Click- Verbindungen miteinander verbunden und sind so in einer Baueinheit zusammengefasst. Darüber hinaus ist der Mischer-Eingangsanschluss 27 und die Überwurfmutter 38 verliersicher mit den anderen Bauteilen verbunden, so dass der gesamte Sprühmischer 22 eine Baueinheit bildet. The mixer outer housing 23, the mixer inner housing 29 and the mixing element 33 are connected to each other via known per se, not shown click connections with each other and are thus combined in a single unit. In addition, the mixer input port 27 and the union nut 38 is captively connected to the other components, so that the entire spray mixer 22 forms a structural unit.
Für die Verbindung des Sprühmischers 22 mit der For the connection of the spray mixer 22 with the
Mehrkomponentenkartusche 10 wird der Sprühmischer 22 auf die Multi-component cartridge 10, the spray mixer 22 on the
Mehrkomponentenkartusche 10 aufgesetzt und anschliessend die Verbindung mit der Überwurfmutter 38 gesichert. Das Aufsetzen und Sichern wird dabei als ein Arbeitsschritt angesehen. Multi-component cartridge 10 is placed and then secured the connection with the union nut 38. Setting up and saving is considered as one step in this process.
Die einzelnen Bauteile des Sprühmischers 22 werden mittels eines The individual components of the spray mixer 22 are by means of a
Spritzgussverfahrens aus Kunststoff hergestellt. Dazu kann beispielsweise ebenfalls Polypropylen, Polyamid, Polycaprolactam (Polyamid 6) oder Polybutylenterephthalat verwendet werden. Injection molding process made of plastic. For example, polypropylene, polyamide, polycaprolactam (polyamide 6) or polybutylene terephthalate can also be used for this purpose.
Um die Komponenten aus den Behältern 1 1 , 12 der To the components from the containers 1 1, 12 of the
Mehrkomponentenkartusche 10 auszutragen, wird die To discharge multicomponent cartridge 10, the
Mehrkomponentenkartusche 10 in ein Austraggerät eingesetzt. In der Fig. 3 ist schematisiert ein Austraggerät 40 in einer Schnittdarstellung dargestellt. Das Austraggerät 40 verfügt über ein Aufnahmeelement 41 zur Aufnahme einer Mehrkomponentenkartusche. Das Aufnahmeelement 41 weist einen rechteckigen Querschnitt auf. Über eine nicht dargestellte Öffnung des Aufnahmeelements 41 kann eine Mehrkomponentenkartusche von oben in das Aufnahmeelement 41 eingesetzt werden. An einer Vorderseite 42 des Austraggeräts 40 weist das Aufnahmeelennent 41 eine Öffnung 43 auf, welche so positioniert ist, dass der Kartuschen-Ausgangsanschluss der Multi-component cartridge 10 used in a dispenser. FIG. 3 diagrammatically shows a discharge device 40 in a sectional view. The dispensing device 40 has a receiving element 41 for receiving a multi-component cartridge. The receiving element 41 has a rectangular cross-section. Via a not-shown opening of the receiving element 41, a multi-component cartridge can be inserted from above into the receiving element 41. On a front side 42 of the Austraggeräts 40, the receiving member 41 has an opening 43 which is positioned so that the cartridge output terminal of the
Mehrkomponentenkartusche durch die Öffnung 43 hindurch ragen kann. Multi-component cartridge can protrude through the opening 43.
Das Austraggerät 40 weist ein erstes Betätigungselement 44 und ein zweites Betätigungselement 45 auf. Das erste Betätigungselement 44 ist so angeordnet, dass es bei eingesetzter Mehrkomponentenkartusche den Kolben des ersten Behälters verschieben und damit betätigen kann. Das zweite Betätigungselement 45 ist so angeordnet, dass es bei eingesetzter Mehrkomponentenkartusche den Kolben des zweiten Behälters verschieben und damit betätigen kann. Die beiden Betätigungselemente 44, 45 weisen jeweils eine Betätigungsstange 46, 47 auf, die mittels Druckluft in Richtung der Öffnung 43 verschoben werden können. The dispensing device 40 has a first actuating element 44 and a second actuating element 45. The first actuating element 44 is arranged so that it can move the piston of the first container with an inserted multi-component cartridge and actuate it. The second actuating element 45 is arranged so that it can move the piston of the second container with an inserted multi-component cartridge and actuate it. The two actuating elements 44, 45 each have an actuating rod 46, 47, which can be displaced by means of compressed air in the direction of the opening 43.
Zwischen den beiden Betätigungsstangen 46, 47, aber in einer anderen Ebene angeordnet, weist das Austraggerät 40 einen Geräte-Druckluftausgang 48 auf. Da der Geräte-Druckluftausgang 48 in einer anderen Ebene angeordnet ist, ist er in der Fig. 3 gestrichelt dargestellt. Der Geräte- Druckluftausgang 48 ist so angeordnet, dass er bei eingesetzter Arranged between the two actuating rods 46, 47 but in a different plane, the dispensing device 40 has a device compressed air outlet 48. Since the device compressed air output 48 is arranged in a different plane, it is shown in dashed lines in FIG. The device compressed air outlet 48 is arranged so that it is inserted when
Mehrkomponentenkartusche mit dem Kartuschen-Drucklufteingang Multi-component cartridge with the cartridge air inlet
verbunden ist. Der Geräte-Druckluftausgang 48 ist mittels eines Geräte- Druckluftkanals 49 mit einem Geräte-Drucklufteingang 50 verbunden. Über den Geräte-Drucklufteingang 50 kann das Austraggerät 40 an eine übliche Druckluftversorgung angeschlossen werden. connected is. The device compressed air output 48 is connected by means of a device compressed air channel 49 with a device compressed air input 50. About the device compressed air inlet 50, the discharge device 40 can be connected to a standard compressed air supply.
Der Geräte-Drucklufteingang 50 ist an einem Geräte-Griff 51 angeordnet, der mit dem Aufnahmeelement 41 verbunden ist. Der Geräte-Griff 51 dient dazu, dass ein Bediener das Austraggerät 40 sicher halten kann. Ausserdem ist am Austraggerät 51 ein Aktivierungsknopf 52 angeordnet, mittels welchem der Bediener das Austragen, Mischen und Sprühen der Komponenten auslösen kann. The device compressed air inlet 50 is arranged on a device handle 51, which is connected to the receiving element 41. The device handle 51 serves to allow an operator to securely hold the dispenser 40. In addition, an activation button 52 is arranged on the dispenser 51, by means of which the operator can trigger the dispensing, mixing and spraying of the components.
In Fig. 4 ist eine alternative Ausführungsform eines Sprühmischers In Fig. 4 is an alternative embodiment of a spray mixer
dargestellt. Der Sprühmischer 122 gemäss Fig. 4 ist ähnlich aufgebaut wie der Sprühmischer 22 aus Fig. 2. Aus diesem Grund wird nur auf die shown. The spray mixer 122 according to FIG. 4 has a similar structure to that of the spray mixer 22 from FIG. 2. For this reason, only the
Unterschiede der beiden Sprühmischer eingegangen. Im Gegensatz zum Sprühmischer 22 aus Fig. 2 weist der Sprühmischer 122 aus Fig. 4 keinen ringförmigen Mischer-Drucklufteingang auf, der in Richtung einer Mischer-Längsachse 124 orientiert ist. Stattdessen weist der Differences of the two spray mixers received. In contrast to the spray mixer 22 of FIG. 2, the spray mixer 122 of FIG. 4 has no annular mixer compressed air inlet, which is oriented in the direction of a mixer longitudinal axis 124. Instead, the
Sprühmischer 122 einen Mischer-Drucklufteingang 131 auf, der an einem Mischer-Anfang 125 angeordnet und senkrecht zur Mischer-Längsachse 124 orientiert ist. Der Mischer-Drucklufteingang 131 mündet ebenfalls in einen Mischer-Druckluftkanal 130. Über den Mischer-Drucklufteingang 131 kann der Sprühmischer 122 an eine übliche Druckluftversorgung angeschlossen werden. Eine Mehrkomponentenkartusche, an die der Sprühmischer 122 aus Fig. 4 angeschlossen werden kann, weist damit keinen Kartuschen- Druckluftausgang, sondern nur eine oder zwei Kartuschen-Austrittsoffnungen für die Komponenten auf. Spray mixer 122 has a mixer compressed air inlet 131 disposed at a mixer start 125 and oriented perpendicular to mixer longitudinal axis 124. The mixer compressed air inlet 131 also opens into a mixer compressed air channel 130. Via the mixer compressed air inlet 131, the spray mixer 122 can be connected to a standard compressed air supply. A multicomponent cartridge, to which the spray mixer 122 of FIG. 4 can be connected, thus has no cartridge compressed air outlet, but only one or two cartridge outlet openings for the components.

Claims

Sprühmischer zum Mischen und Sprühen von mindestens zwei fliessfähigen Komponenten mit Spray mixer for mixing and spraying of at least two flowable components with
- einem rohrförmigen Mischeraussengehause (23), das sich in  - A tubular mixer outer housing (23), located in
Richtung einer Mischer-Längsachse (24, 124) von einem Mischer- Anfang (25, 125) bis zu einem distalen Mischer-Ende (26) erstreckt,  Direction of a mixer longitudinal axis (24, 124) extends from a mixer start (25, 125) to a distal mixer end (26),
- einem innerhalb des Mischeraussengehäuses (23) angeordneten Mischerinnengehäuse (29),  a mixer inner housing (29) arranged inside the mixer outer housing (23),
- mindestens einem im Mischerinnengehäuse (29) angeordneten Mischelement (33) zum Durchmischen der Komponenten, at least one mixing element (33) arranged in the mixer inner housing (29) for thorough mixing of the components,
- einem Mischer-Druckluftkanal (30. 130), welcher von einem am Mischer-Anfang (25, 125) angeordneten Mischer- Drucklufteingang (31 , 131 ) zu einer Mischer-Austrittsöffnung (35) verläuft, und zwischen Mischerinnengehäuse (29) und - A mixer-compressed air channel (30. 130), which from a mixer at the beginning (25, 125) arranged mixer-compressed air inlet (31, 131) to a mixer outlet opening (35) extends, and between mixer inner housing (29) and
Mischeraussengehäuse (23) ausgebildet ist,  Mixer outer housing (23) is formed,
dadurch gekennzeichnet, dass characterized in that
das Mischeraussengehäuse (23), das Mischerinnengehäuse (29) und das Mischelement (33) in einer Baueinheit zusammengefasst sind, indem das Mischeraussengehäuse (23), das Mischerinnengehäuse (29) und das Mischelement (33) verliersicher miteinander verbunden sind. the mixer outer housing (23), the mixer inner housing (29) and the mixing element (33) are combined in one unit by the mixer outer housing (23), the mixer inner housing (29) and the mixing element (33) are connected together captive.
Sprühmischer nach Anspruch 1 , Spray mixer according to claim 1,
dadurch gekennzeichnet, dass characterized in that
der Sprühmischer (22) dazu vorgesehen ist, in einem Arbeitsschritt mit einer Mehrkomponentenkartusche (10) verbunden zu werden. the spray mixer (22) is intended to be connected in one step to a multi-component cartridge (10).
Sprühmischer nach Anspruch 1 oder 2, Spray mixer according to claim 1 or 2,
gekennzeichnet durch marked by
einen Mischer-Eingangsanschluss (27), welcher a mixer input port (27) which
- an einen Kartuschen-Ausgangsanschluss (28) einer  to a cartridge outlet port (28) of a
Mehrkomponentenkartusche (10) anschliessbar ist, - über wenigstens eine Mischer-Eintrittsöffnung (34) verfügt, über welche die Komponenten zugeführt werden können, und Multi-component cartridge (10) is connectable, - Has at least one mixer inlet opening (34), via which the components can be supplied, and
- den Mischer-Drucklufteingang (31 ) umfasst.  - Includes the mixer-compressed air inlet (31).
Sprühmischer nach Anspruch 3, Spray mixer according to claim 3,
dadurch gekennzeichnet, dass characterized in that
der Mischer-Eingangsanschluss (34) in Richtung der Mischer- Längsachse (24) orientiert ist. the mixer input port (34) is oriented in the direction of the mixer longitudinal axis (24).
Sprühmischer nach Anspruch 3 oder 4, Spray mixer according to claim 3 or 4,
dadurch gekennzeichnet, dass characterized in that
der Mischer-Eingangsanschluss (24) zwei getrennte Mischer- Eintrittsöffnung aufweist. the mixer input port (24) has two separate mixer inlet ports.
Sprühmischer nach einem der Ansprüche 1 bis 5, Spray mixer according to one of claims 1 to 5,
dadurch gekennzeichnet, dass characterized in that
das Mischelement (33) als ein statisches Mischelement ausgeführt ist. the mixing element (33) is designed as a static mixing element.
Sprühmischer nach Anspruch 6, Spray mixer according to claim 6,
dadurch gekennzeichnet, dass characterized in that
das Mischelement (33) und der Mischer-Eingangsanschluss (27) einstückig ausgeführt sind. the mixing element (33) and the mixer input port (27) are made in one piece.
Sprühmischer nach einem der Ansprüche 1 bis 7, Spray mixer according to one of claims 1 to 7,
dadurch gekennzeichnet, dass characterized in that
das Mischeraussengehause (23), das Mischerinnengehäuse (29) und das Mischelement (33) aus Kunststoff ausgeführt sind. the mixer outer housing (23), the mixer inner housing (29) and the mixing element (33) are made of plastic.
Sprühmischer nach Anspruch 8, Spray mixer according to claim 8,
dadurch gekennzeichnet, dass characterized in that
das Mischeraussengehäuse (23), das Mischerinnengehäuse (29) und das Mischelement (33) mittels eines Spritzgussverfahrens herstellt sind. the mixer outer housing (23), the mixer inner housing (29) and the mixing element (33) are produced by means of an injection molding process.
EP13718566.6A 2012-05-14 2013-04-22 Spray mixer for mixing at least two flowing components Not-in-force EP2833991B1 (en)

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Application Number Priority Date Filing Date Title
EP12167892 2012-05-14
EP13718566.6A EP2833991B1 (en) 2012-05-14 2013-04-22 Spray mixer for mixing at least two flowing components
PCT/EP2013/058281 WO2013171030A1 (en) 2012-05-14 2013-04-22 Spray mixer for mixing and spraying at least two flowable components

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EP2833991B1 EP2833991B1 (en) 2018-01-31

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EP (1) EP2833991B1 (en)
KR (1) KR20150013276A (en)
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WO (1) WO2013171030A1 (en)

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US9878335B2 (en) 2018-01-30
US20150102132A1 (en) 2015-04-16
EP2833991B1 (en) 2018-01-31
KR20150013276A (en) 2015-02-04
WO2013171030A1 (en) 2013-11-21
CN104428055A (en) 2015-03-18

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