WO2015062835A1

WO2015062835A1 - Dynamic mixing device

Info

Publication number: WO2015062835A1
Application number: PCT/EP2014/071667
Authority: WO
Inventors: Joachim Plotzitzka
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2013-10-30
Filing date: 2014-10-09
Publication date: 2015-05-07
Also published as: DE102013222111A1

Abstract

A dynamic mixing device (1) for a multiplicity of fluid components, comprising a housing (2) with an inlet opening (5, 7) for at least one respective component and at least one discharge opening (15), having a rotor element (12) which is arranged rotatably in the housing (2) and which has means for mixing (28, 29, 30, 31) the components, wherein a feed opening (20) which is separate from the inlet openings (5, 7) is provided for the feed of a propellant, and wherein a rotary means (22), which can be activated by way of the propellant, is provided for the rotor element (12) in order that the rotor element (12) is rotated, for the purpose of mixing the components, by means of the propellant supplied via the feed opening (20).

Description

Dynamic mixing device

The invention relates to a dynamic mixer, which is used in particular for mixing a plurality of liquid, viscous or pasty components, such as multi-component adhesives and / or sealants or impression materials in the dental field.

Known dynamic mixing devices generally have a housing enclosing a cavity. The housing also has filling openings for the components and in the cavity a rotatably mounted rotor element for mixing the components. The

Rotor element is usually mixed with the help of an external drive

Components are rotated.

For example, EP2548635A1 shows a dynamic mixer for a plurality of fluid components including a housing and a rotor member rotatably disposed in the housing, the housing having an inlet opening for at least one component and at least one outlet opening, between the rotor member and the housing, an annular space is provided, in which a mixing element connected to the rotor element is arranged. Furthermore, the rotor element has a drive end, which is equipped with a coupling element in order to connect the rotor element with a rotary drive.

In particular, WO20121 16883A1, WO20121 16863A1 and US20090207685A1 show similar dynamic mixers.

All dynamic mixers are therefore dependent on an external drive, which is a

Commitment to providing such a drive means and often in particular to

Acquisition and maintenance of complex and costly output devices can lead to the use of the dynamic mixer. The object of the present invention is therefore to provide an improved dynamic mixer.

This object is solved by the features of claim 1.

Advantageous embodiments of the invention are specified by the subclaims.

The basic idea of the invention is the use of a dynamic mixing device for a plurality of fluid, in particular liquid, viscous or pasty components, comprising a housing with at least one, preferably at least two inlet openings for at least one component and at least one dispensing opening preferably for one another Mixture mixed components, as well as rotatably mounted in the housing rotor element comprising means for mixing the components, wherein a separate from the inlet opening addition opening for the addition of a driving medium is provided and wherein a via the

Driving medium can be activated, in particular movable or rotatable, preferably rotatable about or parallel to the axis of rotation of the rotor element rotatable means for the rotor element is provided to rotate the rotor element by means of the supply medium supplied via the feed opening for mixing the components.

In this case, the means for mixing on the one hand be part of the rotor element itself. Thus, the rotor element can have one or more mixing sections, at which the rotor element can be equipped with appropriate means for mixing, in particular wing elements. However, it may also be expedient to provide the means for mixing on a separate mixing element, in particular in the form of said vane elements, for example in one or more mixing sections, which is connected to the rotor element such that rotation of the rotor element results in rotation of the rotor element Mischelementes leads. The means for mixing can in particular be configured, such as the wing elements or mixing means of the rotor elements, which are disclosed in WO20121 16883A1, WO20121 16863A1, DE102004020410A1 or DE20302987U1.

The dynamic mixing device according to the invention can on the one hand in a preferred embodiment be a dynamic mixer itself in such a way that all the features of the above basic idea are already implemented in the dynamic mixer. In an alternative embodiment, however, the dynamic mixing device according to the invention may be designed as an assembly and on the one hand comprise the dynamic mixer, on the other hand, while essential features of the above basic idea may be part of the dynamic

However, they may be separate and / or spatially separate from the dynamic mixer. In the application, however, there is at least one technical connection such that the detached and / or spatially separated features interact at least with parts of the dynamic mixer. In particular, it is conceivable that the dynamic mixing device designed as an assembly on the one hand provides a dynamic mixer, on the other hand a structurally and / or spatially separate drive unit for the rotor element of the dynamic mixer, in particular the addition port for the addition of a propellant that can be activated via the propellant Rotational means, wherein in the application of the dynamic mixing device, so after bringing together the dynamic mixer and drive unit a

Actual connection between the drive unit and the rotor element is present such that the rotor element is driven via the rotating means, is therefore rotated by means of the supply medium supplied via the feed opening for mixing the components. In an alternative embodiment, therefore, another basic idea of the present invention is the provision of a drive unit for a dynamic mixer. In this case, the

Drive unit connecting means for connecting a dynamic mixer with the drive unit, wherein in the assembled state of the drive unit and dynamic mixer said dynamic mixing device is provided. In this case, the drive unit has an addition opening for the addition of a drive medium and a rotational means which can be activated via the drive medium. The dynamic mixer to be connected further comprises means for mixing the components supplied via the inlet openings of the housing, the said rotor element

Drive unit further includes a coupling possibility for the rotor element to the

Rotate rotor element by means of the supply medium supplied via the feed opening for mixing the components. Thus, for example, dynamic mixers already available on the market can be used in an inventive manner by the use of a drive unit according to the invention.

In the following, however, is the embodiment of a mixing device according to the invention in the embodiment as a dynamic mixer speech, the features and in particular the advantageous embodiments are also applicable to mixing device according to the invention as an assembly transferable in which essential features of the idea - as described above - detached and / or spatially separated dynamic mixer

According to the invention, it is provided for the drive and in particular the rotation of the rotor element for mixing the components and for providing the mixture to use a propellant, in particular a liquid or gaseous propellant. The driving medium is in this case the dynamic mixing device via a separate from the or the inlet openings

Feed opening supplied. In this case, in a preferred embodiment, the addition opening may be part of the housing of the mixer itself. However, it is also possible that the addition port is spatially separated from the mixer and in particular from its housing. In the case of a multi-part housing, it can prove to be advantageous if the addition opening is provided on the part of the housing on which at least one inlet opening is provided for one or all components. Wherein in this case the discharge opening for the mixture is preferably provided on a further housing part. Furthermore, an activatable via the propellant medium,

in particular movable or about an axis of rotation, preferably about the axis of rotation of

Rotor element or rotatable rotating means provided parallel thereto to drive the rotor element by means of the supply medium supplied via the feed opening for mixing the components and in particular to rotate. Preferably, at least one channel and / or a working space is further provided for the driving medium, which spatially separates the driving medium from the components and allows contact of the driving medium with at least parts of the rotating means to ensure a drive of the rotating means by a flow of the driving medium. In this case, the rotating means may be part of the rotor body itself, so that the rotor body directly over the Driving medium is driven. For this purpose, the rotor body may be provided with blades or vanes with which the driving medium can come into contact so that the rotor body can be driven by the latter through the flow of the driving medium. Of course, it is also conceivable to use a rotating means, which is designed in the form of a rotary body as a separate component separated from the rotor body and is connected via an operative connection, in particular via a transmission and possibly in addition a clutch to the rotor body that a drive and

in particular a rotation of the rotary body allows a drive and in particular a rotation of the rotor body. For this purpose, the rotary body can be equipped with blades or vanes with which the driving medium can come into contact, so that the rotary body can be driven by the flow of the driving medium and in particular rotatable.

The dynamic mixer according to the invention is preferably made of plastic and designed as a disposable part. After use and concomitant mixing of the components into a mixture, the dynamic mixer is preferably disposed of. Of course, constructions are also conceivable in which a cleaning is possible, so that the mixer is reusable. Preferably, the dynamic mixer is designed such that the rotor body is accessible for cleaning or for cleaning or replacement can be removed. Additionally or alternatively, an at least partial design of the mixer of a metallic or ceramic material may prove to be useful.

As mixtures to be dispensed consisting of preferably at least two components, in particular flowable to pasty mixtures are conceivable as they are used as sealants or adhesives in vehicle, ship and aircraft or in related repair and maintenance operations. For example, the multicomponent mixture may be an adhesive and / or sealant known in the aftermarket and / or series production of the motor vehicle and / or a sound and / or vibration damping material. Such adhesives and / or sealants or said materials may be liquid, viscous or highly viscous or pasty. However, such a multicomponent mixture may in particular also be a sealant processed in the construction industry, an adhesive and / or a surface coating. In addition, multicomponent mixtures are conceivable which are used in the medical field, in particular in the field of dentistry. The components of these mixtures are usually in appropriate

Storage containers included.

The components can be provided in particular in known multicomponent cartridges, which are made, for example, of a plastic material, of aluminum or else of one

Composite material can exist. Most of the cartridges for each component have a hollow cylindrical body or outer cartridge and a coaxially disposed therein

Inner cartridge, wherein on one side in each case a movable piston for pressing out the component contained in the cartridge is provided and on the opposite side respectively an outlet opening for dispensing the component. The piston is displaced by applying a force within the cartridge so that the component can be dispensed. When using a cartridge, the dynamic mixer according to the invention can for example be mounted directly on the same, wherein the outlet openings communicate with the inlet openings. Suitable multi-component cartridges are in particular in EP0992438A1, the

US5566860A1 or WO200119700A1.

Of course, the components may also be contained in other similar containers known to those skilled in the art. In particular, the use of known film and / or

Tube bag may prove useful. For example as disclosed in the

WO200061457A1.

In particular, known dispensing or dispensing guns, in particular for multicomponent containers, are suitable as dispensing devices used. Such dispensing guns can be operated mechanically, pneumatically or electrically. For example, EP1409151A1, DE29819661A1 or EP0721805A1 disclose suitable dispensing guns.

In an advantageous development of the invention, as rotary means, as already mentioned above, a rotary body is used, which is provided separated from the rotor element as a separate component. Preferably, the rotary body is provided within the housing of the dynamic mixer. In addition, an operative connection between the rotary body and the rotor element is provided in order to enable, in particular by means of a rotation of the rotating means by means of the driving medium, a rotation of the rotor element. By using a

Rotary body can be made adjustable and adaptable to the components or the mixture to be dispensed in particular by Providence and suitable design of a gearbox, the speed or speed of the rotor element and also the force or torque of the rotor element. Thus, it may prove useful in the use of highly viscous components, for example, to use a gear that leads to a rotation of the rotating body to a rotation of the rotor element at a reduced speed but increased torque.

In the use of a rotary body, it has also been found to be advantageous to use such, which is rotatably mounted about an axis of rotation which is parallel to a rotational axis of

Rotor element runs. With such a design, for example, a particularly good operative connection between the rotary body and the rotor element can be implemented. In particular, by using an internally toothed rotary body in conjunction with a rotor element with an external toothing, an above-mentioned rotation axis arrangement of both components makes sense. In addition, the use of other gears, in particular one or more externally toothed spur gears prove to be useful to an operative connection between the rotating body and the rotor element provide. Preferably, the axes of rotation of all gears or spur gears are at least parallel to the axis of rotation of the rotor element.

Alternatively, it has been found to be advantageous to use a rotating means rotatable about a rotation axis or a rotation body rotatable about a rotation body, wherein the respective axis of rotation corresponds to the axis of rotation of the rotor element. In particular, at one above described

Design of the rotor element as a rotating means is such a design of advantage. When using a rotary body, such a rotary axis arrangement may also be advantageous. For example, imbalances occurring as a result of the rotation of the movable components can be minimized.

In an advantageous development, the rotating means, which is preferably designed as a rotary body, at least one blade. Preferably, the rotating means is arranged with the at least one blade within the housing. The blade is further arranged such that the

Driving medium in the above-described flow with the blade can make contact to move the rotating means or the rotary body in the flow. Preferably, the rotating means is at least partially round or annular designed around its axis of rotation, wherein the at least one blade extends at least partially on or on the cladding region or the outer surface or in the region of the outer edge with respect to the axis of rotation in the axial direction.

In an advantageous development, the rotating means, which is preferably designed as a rotary body, at least two blades, in particular on two diametrically opposite sides. Thus, imbalances in the rotating means can be minimized. Preferably, the rotating means is at least partially round or annular designed around its axis of rotation and has a plurality of blades, which are arranged at regular intervals on or on the cladding region or the outer surface or in the region of the outer edge with respect to the axis of rotation. Thus, it is particularly advantageous to provide an at least partially ring-shaped rotating means, preferably as

Rotary body designed to provide, which a plurality of blades circumferentially over

Preferably, the entire shell outer surface has, which preferably at least partially extend in the axial direction with respect to the axis of rotation. The rotating means, preferably designed as a rotating body is thus designed Schaufelradförmig or impeller, so that the operating principle is similar to that of a turbine.

Thus, it has also been found to be particularly advantageous if at least one blade is profiled slightly curved, preferably similar to a cross-section of an aircraft wing.

In an advantageous development, the rotating means as described above is configured as a rotary body, wherein a transmission is provided for transmitting power from the rotary body to the rotor element. Another advantage is the use of a dispensing opening for dispensing the propellant. It may be conceivable on the one hand, the driving medium after flowing through the housing, wherein the driving medium is in contact with the rotating means and the same drives and twisted about its axis of rotation, simply leave the discharge opening and let escape. In this case, such an arrangement of the dispensing opening has proved to be particularly advantageous, in which neither the dispensing of the mixture through the dispensing opening is impaired, nor is there a user who can control the dispensing opening

Output device leads. On the other hand, however, the discharge opening can also be arranged such that, for example, a targeted influencing of the mixture delivery is made possible. Thus, the discharge opening may be arranged for example in the front region of the dynamic mixer in the immediate vicinity of the dispensing opening for the mixture. In particular, such a design may prove useful in which the discharge opening within the

Dispensing opening is located or surrounded by the latter, so that the mixture to be dispensed is flowable from all sides by the drive medium to be dispensed. By such a design, a spray application of the mixture can be made possible by using the propellant, as it is known for example from DE901 1965U1 or DE4137801A1.

In an advantageous development, a gaseous propellant is used. In particular, compressed air has been found to be particularly useful here. For example, compressed air is available anyway in most workshops and industrial plants and is generally harmless, in particular with regard to the delivery described above by a discharge opening.

In the following, preferred embodiments of dynamic mixers according to the invention will be described with reference to the attached figures. It shows

FIG. 1 shows a sectional side view of a dynamic mixing device according to the invention,

FIG. 2 shows a further sectional side view of the mixing device from FIG. 1,

FIG. 3 shows a sectional view of the mixing device from FIG. 1 through the section line A-A,

Figure 4 is a sectional side view of a variant of a dynamic mixing device according to the invention.

Figure 5 is a sectional side view of another variant of a dynamic mixing device according to the invention.

Figure 1 shows a sectional side view of a dynamic according to the invention

Mixing device, which is designed as a dynamic mixer 1 and for a plurality of fluid Components comprising a two-part housing 2 with an upper housing part 3 and a lower housing part 4. The upper housing part 3 and the lower housing part 4 are in one

Connection region 14 connected to each other via a latching connection. Also conceivable here are other connection techniques known to the person skilled in the art, such as, for example, a snap, a welding, an adhesive, a screw or a clamping connection or else a combined connection technique. For filling the components, the lower housing part 4 has a first inlet opening 5 for a first component. In addition, a second inlet opening 7 is provided for a second component. The inlet openings 5, 7 may have different diameters and / or cross-sections, which is dependent on the desired mixing ratio of the components. The A lassöff openings 5, 7 open into corresponding inlet channels 6, 8, which are arranged in the lower housing part 4. The inlet channels 6, 8 open into located within the lower housing part 4 and with the first-mentioned inlet channels 6, 8 and thereby provided in the upper housing part 3 channels 9. Here are also suitable sealing means between the housing parts 3, 4 are provided, which seals the transition between the inlet channels 6, 8 and the channels 9 may allow to prevent leakage of the components between the housing parts 3, 4. The channels 9 turn into one

Pre-chamber 10 within the upper housing part 3, where the two components can first come into contact with each other, and then get into a mixing chamber 1 1, where a mixing of the components takes place. The components mixed into a mixture pass to an outlet opening 15 of the upper housing part 3 which adjoins the mixing chamber 11, through which the mixture leaves the dynamic mixer 1.

For mixing the components, the dynamic mixer 1 further comprises a rotor element 12, which is arranged in the housing 2 and in particular in the mixing chamber 1 1 rotatable about an axis of rotation 13. The rotor element 12 has a shaft portion 18, and is inserted with selbigem in a corresponding receptacle 17 of the lower housing part 4. The rotor element 12 also has a tooth system 19 on the shaft section 18. However, in an alternative embodiment, the shaft section 18 can also be formed as a polygon, which engages in a gear having a corresponding opening, wherein the gear additionally has a

External teeth 19 has.

At the shaft portion 18, a bearing portion 32 connects, with which the rotor element is mounted on a bearing portion 16 of the upper housing part 3. The rotor element 12 further extends through said pre-chamber 10 and the mixing chamber 1 1 in the direction of the discharge opening 15. For mixing the components, the rotor element 12 has a first mixing section 28 with a plurality of first wing elements 29 and a second mixing section 30 with a plurality of second Wing elements 31 on. At least part of the wing elements 29, 31 can be designed as guide elements for conveying the components through the mixing space 11 in the direction of the outlet opening 15. The mixing of the components takes place in the illustrated dynamic mixer 1 therefore at least in three stages. First of all, the components in the pre-chamber 10 are brought into contact. For this purpose, the rotor element 12 has at least one rotary surface 33 in this region

rotationally symmetrical trained section on. The rotating surface 33 has a variable

Diameter and / or cross section, in particular a decreasing and / or increasing diameter or cross section is conceivable. In the exemplary embodiment shown, the rotor element 12 is conical in the area of the rotary surface 33 and tapers in the direction of

Dispensing opening 15. During the rotation of the rotor element 12 shearing forces are exerted on the components introduced into the mixing chamber 10. As a result, the components are finely mixed with each other. The components then enter the mixing chamber 11 and are premixed by the first mixing section 28 of the rotor element 12. Finally, in the second mixing section 30, the components are completely mixed. The resulting mixture may then be dispensed via the dispensing opening 15.

The rotation of the rotor element 12 about the axis of rotation 13 by means of a driving medium, preferably a gaseous propellant, in the present case with the aid of compressed air. The compressed air drives a rotatably mounted within the lower housing part 4 about the rotational axis 13, in the illustrated embodiment, annular or hollow cylindrical shaped rotary body 22 at.

For this purpose, the lower housing part 4 has a likewise annular, corresponding

Rotary body receptacle 23 which is open in the direction of the upper housing part 3, so that the rotary body 22 is easy to insert into the rotary body receptacle 23 before mounting the housing 2. The rotary body 22 is designed as an internal gear and therefore has on its inside a

Gearing 24, with which a power transmission via a not shown gear on the rotor member 12 is possible to selbiges for mixing of the components about the rotation axis 13 to rotate.

For rotation of the rotary body 22, the lower housing part 4 also has an additional opening 20, which may be equipped with suitable connection means, for example a plug-in coupling for a compressed air supply line, not shown, and / or with suitable control devices for controlling the compressed air supply. About the addition of the opening 20, the compressed air in a to the

Feed opening 20 subsequent inflow passage 34 and finally reach a flow space 26, which provides a connection area for the compressed air between the inflow passage 34 and rotary body receptacle 23. In this case, the feed opening 20 has a circular cross section, wherein the inflow passage 34 has the same cross section at least on its side facing the feed opening 20, so that the inflow passage 34 is cylindrical at least in some areas. The cylinder axis is orthogonal to the axis of rotation 13 of the

Rotor element 12. In the flow space 26, the compressed air comes into contact with the rotary body 22, the same with radially projecting and pointing in the direction of the flow space 26 and of equipped there for the compressed air accessible blades 25, which also extend in the axial direction with respect to the axis of rotation 13. Said blades 25, the rotary body 22 at least on two diametrically opposite sides, preferably and so also in the illustrated embodiment, however, a plurality of blades 25 is circumferentially provided over the entire outer surface of the rotating body 22. The blades 25 are preferably profiled slightly curved, similar to an aircraft wing. The rotary body 22 is thus designed Schaufelradförmig or impeller. The active principle is similar to that of a turbine. It is therefore a turbomachine, which converts the internal energy of the flowing compressed air into rotational energy and thus into mechanical drive energy. In an advantageous development, the inflow space 26 is designed in an arc shape such that the compressed air supplied via the addition opening 20 and the inflow passage 34 does not impinge perpendicularly on the revolving body 22 in the direction of the rotation axis 13, but rather is deflected laterally at least in regions and directly onto the vanes 25 that selbige move the rotary body 22 in the direction of rotation 46. At the opposite side with regard to the addition opening 20, the lower housing part 4 also has a discharge space 27 for the compressed air, to which an outflow channel 35 adjoins, which in turn opens into a discharge opening 21 for dispensing the compressed air. The discharge opening

21 has a circular cross-section, wherein the outflow channel 35 has the same cross section at least on its side facing the discharge opening 21, so that the outflow channel 35 is cylindrical at least in some areas. The cylinder axis extends orthogonally to the axis of rotation 13 of the rotor element 12 and corresponds to the above-described cylinder axis of the flow channel 34. The introduced via the addition of 20 compressed air thus rotates the rotating body 22 via the blades 25 in the direction of the discharge opening 21, which ob said transmission in a rotation of the rotor element 12 results. Of the

Outflow space 27 is also designed in such an arcuate manner in an advantageous development that the compressed air conveyed by the blades 25 passes directly into the outflow space 27, which through its arcuate shape leads the compressed air into the outflow channel 35.

FIG. 2 shows a further sectional side view of the dynamic mixer 1 from FIG. 1, wherein the sectional plane has been rotated by 90 ° about the axis of rotation 13 in comparison with the view shown in FIG. Thus, the above-mentioned transmission is visible, with which the rotary body

22 is connected to the rotor element 12 such that a rotation of the rotary body 22 in said rotation of the rotor element 12 results in order to mix the components, in particular in the mixing chamber 1 1. Thus, the lower half of the housing has a first gear receptacle 36 and a second gear receptacle 40 on an opposite side with respect to the axis of rotation 13. The gear holder 36 serves to receive an external gear 37, which is rotatably mounted about a rotation axis 38. In this case, the external gear 37 is designed and arranged such that it meshes with a toothing 39, the internal toothing 24 of the rotary body 22 on the one hand and on the opposite side of the outer toothing 19 of the rotor element 12. Furthermore, the gear holder 40 serves to receive a second external gear 41, which also is rotatably mounted about a rotation axis 42. In this case, the external gear 40 is designed and arranged such that it with a toothing 43, the internal toothing 24 of the rotary body 22 on the one hand and on the opposite side of the external toothing 19 of the

Rotor element 12 meshes. The axes of rotation 38, 42 of the external gears and the axis of rotation 13 of the rotor element 12 and also of the rotary body 22 run parallel to one another. By the use and the arrangement of both external gears 37, 41, a uniform force transmission from the rotary body 22 to the shaft portion 18 can be made possible.

In an alternative embodiment, in the position of the shaft portion 18, a further gear may be installed, which has a possibility for a positive plug connection to the rotor element 12 and whose axis of rotation corresponds to the axis of rotation of the rotor element 12.

In order to enable a particularly effective drive of the rotor element 12, a sealing means is provided between the upper housing part 3 and the lower housing part 4. This sealing means is provided in the embodiment shown on the above-described arrival and Abörmungsräume 26, 27 and the rotary body receiving 23 delimiting areas of the upper housing part 3 and the lower housing part 4. The sealing means is provided as a corresponding and in the mounted state of the upper housing part 3 and lower housing part 4 in engagement sealing surfaces which prevent in particular escape of compressed air between the housing parts 3, 4, so that the entire introduced through the addition port 20 compressed air for Rotation of the rotary body 22 is used on the blades 25 and leaves only the dynamic mixer 1 through the discharge port 21 again. Further, the housing parts 3, 4 are provided on the drive components defining surfaces with a surface which is particularly smooth in order to minimize the friction. Conceivable here is in particular the use of a Teflon layer.

Furthermore, the interaction of the drive components, so the transmission can be seen in Figure 2. The rotary body 22 is designed in particular with regard to its blades 25 such that a

Introducing the compressed air through the addition opening 20 leads to a rotation of the rotary body 22 in a direction of rotation 47, in the embodiment shown in the direction of the discharge opening 15 in

Due to the mutual engagement of rotary body 22 with external gear 37 and external gear 41, this rotation leads to a rotation of the external gears 37, 41 in a direction of rotation 48, in the illustrated embodiment counterclockwise. Both in turn with the shaft portion 18 of the rotor member 12 in engagement outer gears 37, 41 thus move the rotor member 12 in a rotational direction 46, in the shown

Embodiment in a clockwise direction about the axis of rotation 13 and corresponding to the direction of rotation 47 of the rotary body 22nd

FIG. 3 shows a sectional view of the mixer 1 from FIG. 1 through the section line AA. It can be seen both the feed opening 20 in the lower housing half 4, through which the compressed air in the direction of rotatably mounted within the rotary body receptacle 23 annular rotary body 22nd passes there to move by means of blades 25, the rotary body 22 in the direction of rotation 47 about the axis of rotation 13, and on the opposite side, the discharge opening 21 through which the compressed air leaves the mixer 1 again. With the internal toothing 24, the rotary body 22 is at two opposite sides with respect to the axis of rotation 13 with the outer teeth 39, 43 of the in the gear shots 36, 40 of the lower housing half 4th

arranged external gears 37, 41 in engagement and rotates these respectively in the direction of rotation 48. Between the outer gears 37, 41, the shaft portion 18 of the rotor element 12 is rotatably mounted in the receptacle 17 of the lower housing part 4. With the external toothing 19 of the shaft portion 18 is at two opposite sides in each case with one of

Gears 39, 43 of the corresponding external gears 37, 41 into engagement, so that above described rotation of the external gears 37, 41 leads to a rotational movement of the shaft portion 18 and thus of the rotor body 12 in the direction of rotation 46 about the axis of rotation 13. Furthermore, the two channels 9 with the respective inlet openings 5, 7 can be seen in FIG. 3 in the area of the lower housing half 4 enclosed by the annular rotary body 22. The unmarked arrival and Abströmungsräume for the compressed air can also be designed arcuate as described above in an advantageous development.

FIG. 4 shows a sectional side view of a variant of a device according to the invention

With regard to the supply of the components and the rotor element 12 in the mixing chamber 10, the dynamic mixer 1 shown here is similar to the mixer of FIGS. 1 to 3, so that the relevant description passages refer to FIG Complete the description. In particular, the dynamic mixer 1 shown here also again has a lower housing part 4 and an upper housing part 3, wherein both housing parts 3, 4 are connected to one another via a latching connection. Also conceivable here are other connection techniques known to the person skilled in the art, such as, for example, a snap, a welding, an adhesive, a screw or a clamping connection or a combined one

Connection technology. The upper housing part 3 tapers like a nozzle in the distal direction. Furthermore, here still another, middle housing part 49 is provided, which is provided substantially within a space defined by the housing parts 3, 4 and thus is substantially enclosed by the housing parts 3, 4. Also, the middle housing part 49 tapers at least in its outer contour nozzle-like in the distal direction. The middle housing part 49 further encloses in the embodiment shown both the prechamber described above, in which the two components can first contact each other, and the mixing chamber 1 1, in which a mixing of the components by means of the rotor element 12 takes place. The mixed to a mixture components arrive at a to the mixing chamber 1 1 subsequent

Outlet opening 15 of the middle housing part 49, through which the mixture leaves the dynamic mixer 1. The upper housing part 3 follows the outer shape of the middle housing part 49 in the direction of the discharge opening 15 such that a space is provided between the housing parts, which forms a working space 44. The working space 44 is used to pressurize the same passes through the arranged at the side facing away from the discharge opening 15 side addition port 20 of the upper housing part. The compressed air then flows through the working space 44 essentially in a main flow direction in the direction of the discharge opening 15, then passes into an outflow channel 35, which is designed like a nozzle to accelerate the compressed air and escapes from the dynamic mixer 1 via the discharge opening 21. The discharge opening 21 forms In this case, the distal end of the upper housing part 3 on the distal side of the dynamic mixer 1, namely on the side at which the discharge opening 15 is provided, wherein the upper housing part 3 in this area projects beyond the central housing part 49 such that the

Outlet opening 15 is still within the space enclosed by the upper housing part space, but is open in the direction of the discharge opening 21. In addition, the opening area of

Dispensing opening 21 larger than the opening area of the discharge opening 15. In the shown

Embodiment, both openings 15, 21 designed circular, wherein the diameter of the discharge opening 21 is greater than the diameter of the discharge opening. Thus, the compressed air escaping from the working chamber 44 via the nozzle-like outflow channel 35 flows circumferentially past the dispensing opening 15 when working with the dynamic mixer 1 and comes there in contact with the mixture to be dispensed. In this way, in particular with appropriate design of the viscosity of the mixture and the pressure of the compressed air, spraying or spraying of the mixture by means of the compressed air can be made possible via the discharge opening 21 projecting in the distal direction. Of course, another type of dispensing opening 21 is conceivable, which does not affect the output of the mixture from the dispensing opening 15 in particular.

For mixing the components within the mixing chamber 10, in turn, the rotor element 12 is provided, which is rotatable via drive components, ie a transmission. The rotor element 12 is here again at a proximal shaft portion 18 in a receptacle of the lower

Housing part 4 rotatably mounted about the rotation axis 13. The drive components settle here, as in the embodiment shown in the introduction, from the external gears 37, 41 which are in engagement with the shaft section 18. The external gears 37, 41 in turn are in engagement with the rotary body 22. Both external gears 37, 41, and rotary body 22 are also rotatably supported by means of corresponding receptacles in the lower housing part 4. Im shown

Embodiment extends the rotary body in the distal direction within the working space 44 and partially along the outside of the mixing chamber 1 1 surrounded area of the central housing part 49. The middle housing part 49 is designed substantially hollow cylindrical in this area, so that the rotary body 22 here to the outer circumferential surface of the central housing part 49 is rotatable. In this section, the rotary body 22 on blades 25, the attack surfaces for the flowing through the working space 44 from the addition port 20 in the direction of discharge opening 21 compressed air to allow rotation of the rotary body 22 about the rotation axis 13 in the direction of rotation 47. Said blades 25, the rotary body 22 at least on two diametrically opposite sides, preferably and so also in the illustrated embodiment, but is a plurality of blades 25 circumferentially over the entire outer surface of the shell Rotary body 22 is provided. The upper housing part 3 is also designed nozzle-like in the area of the blades 25, so that the compressed air is accelerated in this area. The blades 25 are in turn designed such that they follow the nozzle-like shape of the upper housing part 3 in the illustrated embodiment stepwise. Furthermore, the blades 25 are profiled slightly curved, similar to an aircraft wing. The rotary body 22 is thus designed Schaufelradförmig or impeller. The active principle is similar to that of a turbine. So this is a

Turbomachine, which converts the internal energy of the flowing compressed air into rotational energy and thus into mechanical drive energy. Upon rotation of the rotary body 22, the section equipped with the blades 25 rotates about the mixing chamber 10 enclosing portion of the central housing part 49. The rotation of the rotary body in the direction of rotation 47 results in a rotation of the external gears 37, 41 in the direction of rotation 48, which in turn, a rotation of the rotor body 12 in the direction of rotation 46 about the rotation axis 13 has the result.

FIG. 5 shows a further variant of a dynamic mixing device which is designed as an assembly in that on the one hand it comprises the dynamic mixer 1 as the first unit, on the other hand comprises a spatially separated second unit, the drive unit which is provided on a double container 50 in the present case but is operatively connected to the dynamic mixer 1 such that rotation of the rotor element 12 about the axis of rotation 13 via the drive unit can be enabled. The operation of the dynamic mixer is similar to the mixer of FIG. With regard to the supply of the components and the rotor element 12 in the mixing chamber 10, the dynamic mixer 1 shown here is similar to the mixer shown in FIGS. 1 to 3, so that the relevant description passages supplement the description referring to FIG. As an essential difference, in the dynamic mixer 1 in FIG. 5, as already described, the drive of the rotor element 12 is spatially separated from, in particular, the lower housing part 4 and the upper housing part 3. The drive is designed rather as part of the double container 50. In the exemplary embodiment shown, the double container 50 is connected to the dynamic mixer 1 and comprises a first container 51 and a second container 52. The first container 51 serves to receive a first component which can be fed into the dynamic mixer 1 via the first inlet opening 5. The second container 52 in turn serves to receive the second component, which can be fed via the second inlet opening 7 into the dynamic mixer 1 accordingly. is.

The containers 51, 52 are hollow cylindrical and may have pistons, not shown, which are displaceable by means not shown piston rods or other propulsion devices within the container 51, 52 for dispensing the components. Both containers 51, 52 are arranged parallel to one another and spaced from one another such that a shaft 53 is arranged in the intermediate space between the containers 51, 52 and is mounted rotatably about the axis of rotation 13. The shaft 53 has been inserted in the assembly of the double container 50 in a shaft receiving 54 on the shaft portion 18. In this case, the shaft 53 in this area and the shaft receiving 54 is designed such that a rotation of the shaft 53 in a direction of rotation 56 about the axis of rotation 13 leads to a rotation of the rotor element in the direction of rotation 46, the latter corresponding to the direction of rotation 56 of the shaft 53.

For driving the shaft 53, a rotary body 22 is provided on the opposite side of the double container 50 with respect to the dynamic mixer 1, which is rotatable about the axis of rotation 13 and as described above designed as an internal gear, wherein the rotary body 22 with its toothing 24 with a corresponding external toothing 55 of the shaft 53 is engaged in this area. Furthermore, the rotary body 22 is equipped with blades 25 which are designed and arranged as in the embodiment shown in Figure 1. In order to set the rotary body 22 in a rotational movement about the axis of rotation 13, the addition opening 20 is provided for the application of compressed air as the driving medium here. Corresponding is also one

Dispensing opening 21 is provided, can escape through the compressed air.

Also, in a further variant, a design is conceivable in which the drive or the

Drive unit is not part of the double container 50, but is present as a separate component or in turn mounted on another component. In this case, the drive unit has connecting means for connecting a dynamic mixer which is comparable with respect to the mode of operation with the mixer of FIG. 1, wherein said dynamic mixing device is provided in the installed state of the drive unit and dynamic mixer. With regard to the supply of compressed air and the mode of operation, reference should again be made here to the preceding exemplary embodiments, which in this respect supplement the description of this variant with the relevant description passages. The said drive unit further has a coupling possibility for the rotor element of the dynamic mixer to the rotor element by means of the over

Feed port supplied drive medium to mix the components to rotate. Here is particularly to the embodiment shown in Figure 5 and the related

Descriptions passages that complement the description of this variant. By providing such a drive unit, for example, dynamic mixers already available on the market can be used in accordance with the invention. LIST OF REFERENCE NUMBERS

1 Dynamic mixer 29 First wing elements

2 housing 30 second mixing section

3 Upper housing part 31 Second wing elements

4 Lower housing part 32 bearing section

5 First inlet opening 33 Rotating surface

6 First inlet channel 34 Intake channel

7 Second inlet opening 35 outflow channel

8 Second intake port 36 Gear pickup

9 channel 37 external gear

10 prechamber 38 axis of rotation

11 mixing chamber 39 toothing

12 rotor element 40 gear recording

13 Rotary axis 41 External gear

14 connection area 42 axis of rotation

15 discharge opening 43 toothing

16 storage area 44 working space

17 Housing 45 Outer shell surface

18 shaft section 46 direction of rotation rotor element

19 Gearing 47 Direction of rotation Turning body

20 Feed opening 48 Direction of rotation Gear

21 discharge opening 49 middle housing part

22 rotary bodies 50 double containers

23 Rotary body holder 51 First container

24 Gearing 52 Second container

25 bucket 53 shaft

26 Flow area 54 Wave recording

27 Outflow chamber 55 external thread

28 First mixing section 56 Rotation shaft

Claims

claims

A dynamic mixing apparatus (1) for a plurality of fluid components, comprising a housing (2) having an inlet opening (5, 7) for at least one component and at least one dispensing opening (15), with one rotatable in the housing (2) Rotor element (12) comprising means for mixing (28, 29, 30, 31) of the components, characterized in that one of the inlet openings (5, 7) separate feed opening (20) is provided for the addition of a driving medium and that on the driving medium activatable rotating means (22) for the rotor element (12) is provided for rotating the rotor element (12) by means of the blowing medium supplied via the feed opening (20) for mixing the components.

2. Dynamic mixing device (1) according to claim 1, characterized in that as

Turning means a rotary body (22) is used.

3. Dynamic mixing device (1) according to claim 2, characterized in that the

Rotary body (22) is rotatable about an axis of rotation which is parallel to a rotational axis (13) of the rotor element (12).

4. Dynamic mixing device (1) one of claims 1 or 2, characterized in that the rotating means or the rotary body (22) about the rotational axis (13) of the rotor element (12) is rotatable.

5. Dynamic mixing device (1) according to any one of the preceding claims, characterized

characterized in that the rotating means comprises at least one blade (26).

6. Dynamic mixing device (1) according to claim 5, characterized in that the

Rotating means at least two blades (26), in particular at two diametrically

has opposite sides.

7. Dynamic mixing device (1) according to one of claims 5 or 6, characterized

characterized in that at least one blade (26) is profiled slightly curved.

8. Dynamic mixing device (1) according to one of the preceding claims, characterized

characterized in that a rotary body (22) is designed as a rotating means, wherein a gear (35, 39) for providing an operative connection of the rotary body (22) to the rotor element (12) is provided.

9. Dynamic mixing device (1) according to any one of the preceding claims, characterized in that a discharge opening (21) is provided for dispensing the driving medium.

10. Dynamic mixing device (1) according to any one of the preceding claims, characterized in that a gaseous propellant medium is used, in particular compressed air.