EP1900443B1 - Device for mixing a binder and a hardener component for producing a ready-to-use body filler - Google Patents

Description

The present invention relates to a device system according to the preamble of claim 1.

Such devices for mixing at least two components are used, for example, in the production of fillers, wherein a hardener component with a 1 ... 2% content of a binder component is mixed to produce a curable filler. The mixing device has for the supply of the respective components inlet openings, via which the components are added into the mixing chamber. The components are stored in upstream receptacles such as cartridges or the like, the mixing device being part of a means for providing putties.

Such a device for producing a ready-to-use filling compound for the filling of surfaces, which relate, for example, to vehicle bodies, is known from US Pat DE 203 07 518 U1 known. The apparatus has two reservoirs arranged at a base station, of which one is filled with a binder component, namely a putty component, and the other with a hardener component. By means of a metering device, the two components are each fed via a supply channel continuously to a mixing chamber in which the components come into contact with each other. The mixing chamber is formed from a tube section of a flexible tube, on the outside of which press rollers attack, which compress the tube section and at the same time to a Drive the longitudinal axis all around. Due to the friction occurring and the adhesion of the components to the inner wall of the tube, the components are mixed together. After the mixture has passed through the tube section, it arrives at an outlet opening provided on the tube, where it emerges continuously from the tube. The tube wall is made of an airtight plastic, so that the air surrounding the tube during the mixing process does not get into the mix and can be trapped in this in the form of pores or voids.

Is known from the DE 20 2005 005 833 U1 a device system for mixing a binder component and a hardener component to a pasty or liquid mixture for producing a ready-to-use filler for filling surfaces of, for example, vehicle bodies with a support plate arranged in a device component with an inlet opening for feeding the binder Component comprising a storage container arranged on the support plate and having at least one further inlet opening for the supply of the hardener component from a reservoir arranged on the support plate and connected to the inlet openings via supply channels in the support plate outlet openings and a functionally connectable to the support plate mixing device with one of Number of outlet openings corresponding number of corresponding to the outlet openings of the mixing device, which has a hollow cylinder-like stator with a in s a wall formed discharge opening for the mix and a concentrically arranged in this and rotatable about a longitudinal axis rotor part with an intermediate the stator part and the rotor part having an annular gap-like mixing chamber, wherein a plurality of first mixing teeth formed on the stator first radially inwardly and a plurality of second rotor teeth formed on the second mixing teeth extend radially outwardly into the mixing chamber in order to move by means of a rotary movement of the rotor member in the stator, the mixing teeth against each other in order to create a mixing of the components, wherein the stator part has at least one inlet opening for the hardener component connected to the mixing chamber and wherein the first mixing teeth are arranged on at least one first mixing tooth plane and the second mixing teeth on at least one second mixing tooth plane, wherein the mixing tooth planes are axially staggered in the direction of the longitudinal axis to each other, so that the second mixing teeth of the rotor part in the respective spaces of the first mixing teeth of the stator rotate radially, with several mixing teeth planes on the rotor part and are provided on the stator.

By this device, the mixing components are mixed together so that the mix cures reliably. In the first place, this is achieved by having two storage containers and by connecting these storage containers to the mixing chamber via separate feed channels. By means of a metering device, the mix can be continuously conveyed through the mixing chamber through a discharge opening arranged on the stator part.

By the EP 1 627 690 A is a glue gun for applying, in particular a two-component adhesive is known, which easily a wide range of mixing ratios between a relative Tough adhesive component and a relatively liquid adhesive component in a glue gun allows. This glue gun comprises a first cylindrical container provided with a first piston for pressing a relatively tough adhesive component from a first cylindrical container, a second cylindrical container provided with a second piston for pressing a relatively liquid adhesive component from the second cylindrical container a mixing unit into which the first cylindrical container and the second cylindrical container open, and drive means for moving the first and second pistons, wherein the drive means are designed for a higher speed of the first piston than the speed of the second piston, wherein the first cylindrical container has a larger inner diameter than the second cylindrical container.

The EP 1 570 805 A discloses a device for producing a mixture of several components, in particular for dental purposes: this device comprises at least two cartridges, each cartridge containing a component of the mixture of a plurality of components and a piston for pressing out the component is arranged from the cartridge and a drive device for the piston, in which the drive speed is adjustable, wherein the drive device comprises a stepping motor. At low speeds per minute, the stepper motor is said to provide higher torque compared to known DC motors, while also providing high RPMs, albeit with relatively little torque, sufficient for rapid propulsion and retraction of the pistons.

The US Pat. No. 6,499,630 B discloses an arrangement for proportionally dispensing two or more flowable substances from two or more syringes, at least one of which is also used alone or in conjunction with other syringes, especially for dental purposes. According to this arrangement, it is provided that both the syringe body and the syringe plunger can be rigidly coupled together by releasable coupling devices regardless of the respective piston position in the feed direction. The coupling devices are designed so that the pistons and / or the syringe body in any relative position can be connected to each other in the feed direction. This arrangement further provides that the syringe body only in a predetermined relative position, the piston rods associated with the piston but are coupled together in any relative position.

In practice, however, it has been shown that the filler compound mixed with the device occasionally still has inhomogeneities. When the putty is filled on the surface of a vehicle body, the putty does not harden in the places where no hardening component is present. The elimination of such defects is associated with a relatively large effort, since the filler must be removed by grinding of the body and then the body has to be filled again. If such If defects remain unnoticed during a repair and the body is then painted, it is even necessary to repaint the site. If the mixing device remains out of use in the long term, the filler may dry out, in particular in the end region of the tube, which leads to the device being unusable. In addition, the hose is exposed to considerable wear, as during operation of the device in the hose a considerable flexing work is introduced. Furthermore, the device is very expensive and space-intensive due to the press rolls or rollers.

Another disadvantage is the fact that the addition of the hardener component is not possible, at least by means of a visual inspection, so that it is not ensured that a continuous supply of the hardener component takes place in the binder component. Possible mass fractions of the binder component, which are not mixed with the hardener component, can not be identified, which is uncertain by the mere simple supply of the hardener component via an internal supply pipe, whether air bubbles occur in the hardener component.

On this basis, the present invention seeks to provide a device system for a homogeneous mixing of at least two components for producing a ready-to-use fully curable putty without air pockets using two functionally cooperating system components, namely a mixing device and a starting substance supply means.

The solution of this problem is specified in claim 1.

Advantageous embodiments are contained in the subclaims.

The device system according to the invention for mixing at least two components, in particular of a binder component A and a hardener component B, to a pasty or liquid mixture for producing a ready-to-use filler for filling surfaces, for example vehicle bodies, comprises a support plate having a Inlet opening for the supply of the binder component A from a reservoir arranged on the support plate and with at least one further inlet opening for the supply of the hardener component B from a arranged on the support plate storage container and with the inlet openings via supply channels in the support plate connected outlet openings, and a functionally connectable to the support plate mixing device with a number of outlet openings in the support plate corresponding number of corresponding with the outlet openings of the Mischvorrichtu ng, which has a hollow cylinder-like stator part with a discharge opening in its wall for the mix and a concentrically arranged in this rotatable about a longitudinal axis rotor part with an annular gap formed between the stator and the rotor part mixing chamber, wherein a plurality of integrally formed on the stator first mixing teeth radially inside and a plurality of second mixing teeth formed on the rotor part extend radially outwardly into the mixing chamber to move by means of a rotational movement of the rotor part in the stator, the mixing teeth against each other to create a mixing of the components A and B, wherein the stator at least one, preferably two having the mixing chamber connected to the inlet openings for the hardener component B and wherein the first mixing teeth are arranged on at least a first mixing tooth plane and the second mixing teeth on at least one second mixing tooth plane, wherein the Mischzahneben are axially staggered in the direction of the longitudinal axis to each other, so that the second mixing teeth of the rotor part in the respective spaces of the first mixing teeth of the stator rotate radially, with several mixing teeth planes on the rotor part and / or provided on the stator, wherein preferably the number of mixing tooth planes on the rotor part and the stator are equal, wherein for the functional connection between the mixing device and the support plate of the stator at its end facing away from the inlet openings carries an annular support having fastening apertures and the bayonet-like detachable, lockable and rotatably connected to the stator, wherein the rotation is limited by stops such that a fit of the inlet opening for the binder component A in the mixing device with the corresponding outlet opening in the support plate and at the same time a fit of the inlet openings for the hardener component B is achieved in the mixing device with the corresponding outlet openings in the support plate.

The invention includes the technical teaching that the mixing device has a hollow cylinder-like stator part and a rotor part rotatably received in this concentric about a longitudinal axis rotor part and the mixing chamber between the stator and the rotor part ringpaltartig formed, wherein a plurality of integrally formed on the stator first mixing teeth radially inwardly and a plurality of second mixing teeth formed on the rotor part extend radially outwardly into the mixing chamber in order to move the mixing teeth against each other by means of a rotational movement of the rotor part in the stator part and to create a mixing of the two components, wherein the stator part at least one, preferably two connected to the mixing chamber Having inlet openings for the hardener component.

The supply of the binder component and the hardener component by means of a control device to the mixing chamber is preferably such that before the start of each mixing process before the feed of the binder component or before the start of the continuous mixing process with the rotational movement of the mutually running mixing teeth of the mixer Amount of 0.1 gram to 0.5 gram, preferably 0.2 gram pasty or liquid hardener component is injected into the mixing chamber, whereupon the feed of the binder component and the inflow of the hardener component takes place.

The mixing device consists of a unit of two components, namely the stator and the rotor part. The binder component and the hardener component are introduced via the respective inlet openings in the mixing device, and get directly into the mixing chamber. Due to the rotational movement of the rotor part in the stationary stator part, the second mixing teeth rotate, whereas the first mixing teeth rest. Thus, a shear or division is introduced into the mix, so that the hardener component is reliably mixed with the binder component. The first mixing teeth have at least one first mixing tooth plane and the second mixing teeth at least one second mixing tooth plane. The mixing tooth planes are staggered axially relative to one another in the direction of the longitudinal axis, so that the second mixing teeth of the rotor part rotate radially in the respective interspaces of the first mixing teeth of the stator part. Overall, at least six mixing tooth planes can be provided by the first mixing teeth of the stator part, so that in the respective gaps the second mixing teeth of the rotor part are arranged on a total of six mixing tooth planes. The mixture passes through the six mixing teeth planes of the first mixing teeth and the six mixing teeth planes of the second mixing teeth from the inlet opening to the delivery opening. In this way, the division effect is considerably increased and achieved a better mixing of the components.

Advantageously, the discharge opening is designed as a radial outlet on a side wall portion of the stator, wherein the discharge opening is preferably circular and / or radially offset with respect to the normal laterally offset to this on the lateral surface of the stator to the side is arranged pointing. In this way, a more defined delivery of the mixed material is achieved.

The mixing material exits the mixing chamber of the mixing device again via the discharge opening, the discharge opening being arranged on the far side from the inlet openings, so that the mix passes through the entire annular gap-like mixing chamber. The flow movement of the mixed material is generated by pressurizing the respective storage container of the components, so that the components are pressed into the mixing chamber through the respective inlet openings. Based on the pressure or the flow cross section of the respective components added, the mixing ratio is determined. The supply of the binder component and the hardener component to the mixing chamber is carried out by means of a control device, which, however, has a further object.

The size of the discharge opening is preferably defined so that 100 g of a ready-to-use filler mass are dispensed essentially in 10 seconds. Particularly preferably, the diameter of a circular discharge opening is 10 mm. As a result, a better mixing of the components can be achieved.

Before the beginning of each mixing process is before the feed of the binder component or before the start of the continuous mixing process with the rotational movement of the counter-rotating mixing teeth of the mixer, an amount of 0.1 grams to 0.5 grams, preferably 0.2 grams pasty or liquid Hardener component injected into the mixing chamber, whereupon the feed of the binder component and the inflow of the hardener component takes place.

And this injection of a smallest amount of hardener component is also initiated and monitored by the controller. By the Injecting or injecting a small amount of pasty or liquid hardener component before or at the beginning of each continuous mixing process in the mixing chamber of the device erroneous mixing results are avoided because without this Vorab-Injizierung it always leads to incorrect mixing results. This is because the mixing ratio is up to 2% to 98% of binder component and hardener component. The initial amount, which is about 1 cm ³ , then contains either no hardener or so much reduced amount of hardener that it can partially come to deficient curing. A useful cure result is therefore achieved with a benzoyl peroxide content (50% paste) between 0.8% to 5%. If this proportion is not met in over- or under-dosage, then quality problems arise in the mix. The underdosing leads to insufficient final hardness. The overdose leads to an undesirable enrichment of the binder component (putty) with plasticizer, which is about 50% contained in the hardener paste. If these guideline values are not adhered to when curing the final product, then there will be incorrect final results during painting. For this reason, the solution according to the invention is particularly advantageous in claim 1, since useful curing results are achieved.

This flow of injection of a small amount of hardener component before the beginning of the actual feed of binder component and hardener component for the mixing process is no lead to achieve a proportional application of the binder component and the hardener component, because the hardener Component must not be more than 4%, because otherwise unacceptable reactions occur and u. a. Also, a peroxide bleaching action of the colorant pigments contained in the hardener component may occur.

An advantageous embodiment of the present invention provides that the inlet openings open directly into the mixing chamber of the mixer, wherein the inlet opening for supplying the hardener component is present in duplicate to provide a redundant supply of the mixed material with the hardener component. The requirement of a redundant supply of the hardener component based on the finding that inhomogeneities in the mix are usually caused by air bubbles in the hardener component, which can not be safely avoided even with careful production of the hardener component in practice. Since the hardener component has a proportion of less than 5% and preferably only about 2% of the total volume of the mixed material, even the smallest air inclusions in the hardener component can result in places in the mix which do not contain hardening agents. Contain component and thus do not harden. Since in the apparatus according to the invention preferably two storage containers are provided for the hardener component and are connected to the mixing chamber via separate feed channels, in the case that an air bubble should be contained in one of the feed channels, the mixing chamber can still continue to supply the mixing chamber via the second feed channel Hardener component to be supplied. The risk that air bubbles of the hardener component should be contained in all feed channels at the same time is many times less and can therefore be neglected. The device can be used, for example, for the following binder systems: polyester resins (unsaturated), peroxy-styrene systems, epoxy resins (two-component), polyurethane resin systems (two-component), phenolic resin systems, silicone systems (two-component), acrylate systems ( two-component) or thiocoll systems (polydisulfide systems).

In order to be able to control the supply of the hardener component by means of a visual inspection, it is provided that at least the stator part is formed from a transparent material, the transparent material from the group of plastics comprising a polycarbonate (PC), a polymethyl methacrylate (PMMA). and / or a styrene-acrylonitrile (SAN) or PP in Random quality, preferably transparent, is formed. It is Furthermore, it is of particular advantage to color the hardener component. The supply of the hardener component is visible through the transparent stator part, so that the operator can control the supply of the hardener component of the seeing eye during the operation of the mixing device.

The rotor part is advantageously made of polyoxymethylene (POM), also called polyacetal or polyformaldehyde formed. This material has better sliding properties with a polycarbonate or polypropylene (PP).

Advantageously, the mixing teeth each have end faces, which face each other in the axial direction, in order to position them against each other in an axially acting force between the stator and the rotor part. Furthermore, the end faces are inclined at an angle α with respect to a plane arranged normal to the axis of rotation, so that the end faces slide on each other during the mixing process without removing material from the mixing teeth and entering the mix. This makes it possible to keep the length of the rotor part in the direction of the axis of rotation short, so that after use of the rotor part or the stator only a corresponding residual amount of the mixed material remains in the mixing chamber. The device thereby enables low consumption of the components. During the mixing process, the mixing teeth of the rotor part and the mixing teeth of the stator are pressed against each other by the delivery pressure of the components, the obliquely extending face side surfaces slide on each other without abrasive material is removed from the teeth and enters the mix. In this case, the components of the mixed material between the mutually sliding end faces form a thin film which acts as a sliding layer. The angle α, under which the mixing teeth are inclined relative to each other of the plane arranged normal to the axis of rotation, may be at least 5 °, optionally 10 ° and preferably at least 15 °.

A further advantageous embodiment of the invention provides that the stator part comprises a support bearing surface on which the rotor part abuts with the end face of the mixing teeth formed thereon and slides off in order to create an axial slide bearing arrangement. First, the rotor part is introduced into the stator part via an open end side facing away from the inlet openings until it abuts against the support bearing surface with the mixing teeth. This allows a one-sided axial mounting of the rotor part in the stator. The geometry of the rotor part is adapted so that the second mixing teeth of the rotor part are at the frontal stop of the mixing teeth on the support bearing surface in the respective spaces of the first mixing teeth of the stator. The axial support of the rotor part takes place in the joining direction of the rotor part in the stator against the support bearing surface, wherein in an axial play in the direction of the opening of the stator, the risk that the first and second mixing teeth come together. Due to the end faces, which are arranged at an angle α, the rotor part is returned in the direction of the joining direction, from which the rotor part is inserted into the stator, against the support bearing surface.

Advantageously, the rotor part on the end projections on which protrude into the inlet opening for supplying the binder component and rotate with the rotation of the rotor part in order to reduce the thixotropy of the binder component already in the feed channel of the inlet opening. Thus, upon delivery of the binder component into the mixing chamber, the thixotropy of the binder component is temporarily reversibly disrupted, thereby better dispersing the hardener component into the binder component, particularly once an air bubble in one of the harder component feed channels should be arranged and thus the mixing chamber only a correspondingly reduced amount of the hardener component can be supplied.

For example, in a polyester-binder component, the distance between the hardener component and the binder component in the mix must be significantly less than 0.5 mm, so that a uniform curing of the mix is achieved and no areas remain in the mix in which the hardening fails. The projections are formed on the rotor part in such a way that they rotate at least partially within the inlet opening for the binder component, and introduce into this the kinetic energy.

The introduction of the kinetic energy reduces the flowability, in particular at low temperatures, which may be significantly below 12 ° depending on the location, so that by means of the means for reducing the thixotropy of the intended delivery pressure for the introduction of the binder component is sufficient. By introducing the kinetic energy, the thixotropy of the binder component can be reversibly attenuated or even completely eliminated.

A further embodiment of the invention provides that the rotor part has an open-ended, hollow-cylindrical recess into which a core can be inserted in a geometry-adapted manner, by means of which the rotor part can be driven. The rotor part has a cavity, which is open on one side. Through the hollow cylinder-like opening or recess of the core can be used to drive the rotor part by means of a rotational movement. The core may, for example, be connected to a motor in order to initiate the rotational movement in the rotor part. For the transmission of the torque is provided that the recess from the body of the rotor part has radially inwardly extending locking ribs, which engage in corresponding recesses in the core, which are provided in the core. Preferably, eight locking ribs may be provided, with a different number of locking ribs is sufficient or required. The transmission of the required drive torque to the rotor part may alternatively to the provided locking ribs also by a polygon, which may be formed, for example, in the manner of a hexagonal Allen system.

Advantageously, the rotor part has sealing lips in order to seal the mixing chamber between the rotor part and the stator part and to prevent leakage of the mixed material. The sealing lips are provided as circumferential projections at the end on the rotor part, and adjoin the inner wall of the stator part with a clearance or a transitional dimension in order to create a seal of the mixing chamber. In this case, a plurality of sealing lips may be provided to improve the sealing effect. In the region of the mixing chamber, the rotor part has a first outer diameter, which at the same time forms the inner wall of the mixing chamber. A second diameter begins with the arrangement of the sealing lips, which is larger than the first diameter in the region of the mixing chamber. The discharge opening in the stator part is arranged at the level of the mixing chamber, so that the mixture can emerge from the mixing chamber in the end region of the smaller first diameter. Only after the diameter enlargement, the sealing lips are arranged so that leakage of the mixture is reduced by the sealing lips on the enlarged diameter.

A further embodiment of the invention provides that the stator part has at least one plate-shaped projection on the outer circumference, wherein at least one of the plate-shaped projections comprises a crescent-shaped detent contour into which a pin element engages when inserting the mixing device in order to secure the radial position of the dispensing opening in the stator part , Preferably, the dispensing opening is in a vertical downward position so that the operator can receive the ready-to-use mix in a container. The pin element can be arranged on a holder or receiving device for the mixing device, so that the mixing device, which initially consists of the rotor part joined in the stator part, is pushed onto the core, which is also arranged on the receiving unit. The pin member thus secures the stator member against rotation to assure that the mixed material dispensing port remains in the vertically downward position.

The plate-shaped projections act as stabilizing collars, which can also serve as a handle for receiving the mixing device by the operator to prevent polluting the hands of the operator when changing the mixer. The crescent-shaped recess may alternatively be designed as a bore, so that the pin extends into the bore. According to the present embodiment, three plate-shaped projections are provided, wherein at least two of the three projections material-uniform transition into the discharge opening, and the crescent-shaped locking contour is provided on the end arranged third plate-shaped Anformung. Alternatively, however, the crescent-shaped detent contour may also be provided in each of the plate-shaped arrangement.

A further embodiment of the invention provides that the rotor part has a cylindrical bearing portion in order to create a sliding bearing arrangement in the stator part for radial mounting. The bearing section is provided as a cylindrical section on the outside in the rotor part, and is insertable in a cylindrical inner contour section in the stator part and forms a slide bearing arrangement. Thus, the rotor is mounted axially over the support bearing surface or the end faces of the mixing teeth and supported radially by means of the bearing portion.

Advantageously, a cavity is formed between the sealing lips in order to enable a catching of mixing material passing through the sealing lips. Furthermore, the stator part in the cylindrical portion of the cavity on the circumference at least one outlet opening in order to escape of mixed material on the part of the cylindrical bearing portion prevent. Due to the pressure of the mixed material in the mixing chamber, it may happen that mixed material can nevertheless escape through the sealing lips. In order to prevent the mix from exiting the end of the stator part or from the mixing device, a cavity is provided to receive emerging mixture. If the cavity is filled with mixed material, this can escape through the outlet openings in order to finally prevent leakage of the mixed material from the region of the cylindrical bearing section. Preferably, two outlet openings are arranged, wherein a single outlet opening may preferably be provided in the region of the discharge opening.

To support the mixing device on the support plate, the stator part of the mixing device carries at its end facing away from the inlet openings an annular holder which has Befestigungsdurchbrechungen and the bayonet-type releasably and rotatably connected to the stator, wherein the rotation is limited by means of stops such that a fit of the Inlet opening for the binder component A with the supply of the binder component A and at the same time a fit of the two inlet openings for the hardener component B is achieved with the supplies of the curing agent component B.

The annular support has two opposing parallel to the peripheral edge of the holder arcuate, slot-shaped openings, each of which opening has two guide portions with different widths, of which the respective wider guide portion for inserting an integrally formed on the lower peripheral edge of the stator L-shaped Guide cam is formed, wherein the width of the wider guide portion corresponds to the length of the free angled leg of the guide cam, and of which the narrower guide portion has a width which is the thickness of the integrally formed on the lower peripheral edge of the stator and parallel to the longitudinal direction of the mixing device extending leg of the L-shaped guide cam corresponds.

The outer wall portion of the narrower guide portion has a recess whose depth corresponds approximately to the strength of the angled leg of the L-shaped guide cam.

Furthermore, the object of the invention is achieved by a device for producing a ready-to-use filler for filling surfaces of, for example, vehicle bodies, which with a previously described mixing device with at least one arranged on a support plate receptacle for a reservoir of a binder component and at least one on a Support plate arranged receptacle for a reservoir of a hardener component and at least one associated with a reservoir and preferably each associated with a hydraulic cylinder piston rod is provided with an attachment and guide element for the piston rods is provided above the reservoir, and wherein the attachment and guide member with the Support plate is connected by struts, wherein the struts are provided on opposite sides.

In this way, a higher mixing accuracy of the device can be achieved, since deformations of the device during mixing operation are minimized, whereby a reduction of the spring action within the device can be achieved up to 2/100 mm.

Furthermore, it is advantageous that at least one openable, preferably transparent protective cover is provided for covering the storage container, wherein a circuit breaker is particularly preferably provided in operative connection with the protective cover and the device which switches off the device when the protective cover is opened. In this way, the operational safety of the device is increased.

Thereafter, the invention consists of a device system of two combinable components, namely the support plate with the inlet openings and the outlet openings for the binder component A and the hardener component B and the mixing device with the inlet openings for the metered binder component A and the metered Hardener component B, wherein with essential to the invention the design of the mixing device in conjunction with its annular support to create a bayonet-type connection is such that the mixing device with the support plate is connected such that in the inserted state of the mixing device whose inlet openings for the starting materials in functional operative connection stand with the outlet openings in the support plate, wherein an airtight connection is provided to prevent lateral leakage and unwanted hardening or crusting of the components A and B. The concept of the invention is thus realized by the two system components, namely the actual device with the specially designed support plate and the mixing device, which is centered with their inlet openings in the outlet openings of the support plate so that the inlet openings of the mixing device always aligned with the outlet openings of the support plate in that a perfect inflow of the two components A and B into the mixing device is ensured. Both system components are essential to the invention because they interact via the bayonet lock.

Fig. 1

eine schaubildliche Ansicht des Gerätesystems zur Herstellung einer gebrauchsfertigen Spachtelmasse für die Verspachtelung von Oberflächen z. B. von Fahrzeugkarosserien mit einer Vorrichtung aus einem Statorteil und einem Rotorteil zum Vermischen von mehreren Komponenten und einer Tragplatte für die Zuführung der Komponenten zu der Mischvorrichtung,

Fig. 1A

eine schaubildliche Ansicht des Gerätesystems mit einer aus zwei über eine Querstrebe verbundene Säulen bestehenden Halterung für die Kolbenstangen und ihre Antriebe und mit einer geöffneten Schutzabdeckung,

Fig. 1B

eine schaubildliche Ansicht des Gerätesystems mit einer aus zwei über eine Querstrebe verbundene Säulen bestehenden Halterung für die Kolbenstangen und ihre Antriebe und mit der geschlossenen Schutzabdeckung,

Fig. 2

eine schaubildliche Ansicht eines Teils des Gerätesystems zur Herstellung einer gebrauchsfertigen Spachtelmasse mit in die Tragplatte eingesetzter Mischvorrichtung,

Fig. 2A

eine schaubildliche Ansicht der plattenförmigen Tragplatte,

Fig. 3

eine schaubildliche Ansicht der aus dem Statorteil und dem Rotorteil bestehenden Mischvorrichtung mit steuerbaren Zuführungen für eine Binder-Komponente und zwei Härter-Komponenten aus mit der Mischkammer verbundenen Vorratsbehältern, wobei der Statorteil an seinem den Zuführungen für die Komponenten abgekehrten Ende eine mit dem Statorteil lösbar verbundene und mit dem Gerät fest verbundene ringförmige Halterung,

Fig. 4

eine vergrößerte Ansicht von oben auf die ringförmige Halterung,

Fig. 5

eine vergrößerte Ansicht von unten auf die ringförmige Halterung,

Fig. 6

einen senkrechten Schnitt gemäß Linie V-V in Fig. 4,

Fig. 7

eine Ansicht von unten auf den Statorteil der Mischvorrichtung, mit den in die Halterung eingreifenden Führungsnocken,

Fig. 8

eine Seitenansicht eines Teils des Statorteils mit den angeformten Führungsnocken,

Fig. 9

eine schaubildliche Explosionsdarstellung der Mischvorrichtung mit dem Statorteil und dem Rotorteil,

Fig. 9A

eine schaubildliche Ansicht des Stators der Mischvorrichtungen mit den Zuführungen für die Binder-Komponente und für die Härter-Komponente,

Fig. 10

eine Ansicht der Mischvorrichtung, in der der Rotorteil im Statorteil eingesetzt ist und der Statorteil geschnitten dargestellt ist,

Fig. 11

einen Querschnitt durch die Mischvorrichtung mit geschnittenem Statorteil sowie geschnittenem Rotorteil,

Fig. 12

einen Längsschnitt durch den Statorteil,

Fig. 13

eine Draufsicht auf den Statorteil, wobei die Draufsicht endseitig aus Richtung der Eintrittsöffnungen erfolgt,

Fig. 14

eine Seitenansicht des Rotorteils der Mischvorrichtung und

Fig. 15

einen Teilquerschnitt durch den Rotorteil sowie dem Statorteil entlang einer ringförmig umlaufenden Mischzone innerhalb der Mischkammer, wobei die Zähne des Statorteils schraffiert und die Zähne des Rotorteils unschraffiert dargestellt sind.

Further, measures improving the invention are specified in the subclaims or will be described in more detail below together with the description of a preferred embodiment of the invention with reference to FIGS. Show it:

Fig. 1

a perspective view of the device system for producing a ready-made filler for filling from surfaces z. B. of vehicle bodies with a device comprising a stator and a rotor part for mixing a plurality of components and a support plate for supplying the components to the mixing device,

Fig. 1A

a perspective view of the device system with a consisting of two columns connected via a cross brace support for the piston rods and their drives and with an open protective cover,

Fig. 1B

a perspective view of the device system with a consisting of two connected via a cross brace columns support for the piston rods and their drives and with the closed protective cover,

Fig. 2

a perspective view of a part of the device system for producing a ready-made filler with inserted into the support plate mixing device,

Fig. 2A

a perspective view of the plate-shaped support plate,

Fig. 3

a perspective view of the consisting of the stator and the rotor part mixing device with controllable feeders for a binder component and two hardener components connected to the mixing reservoirs, the stator at its end facing away from the feeds for the components detachably connected to the stator and annularly connected to the device,

Fig. 4

an enlarged view from above of the annular holder,

Fig. 5

an enlarged view from below of the annular holder,

Fig. 6

a vertical section along line VV in Fig. 4 .

Fig. 7

a view from below of the stator of the mixing device, with the guide cams engaging in the holder,

Fig. 8

a side view of a portion of the stator with the molded guide cam,

Fig. 9

a perspective exploded view of the mixing device with the stator and the rotor part,

Fig. 9A

a perspective view of the stator of the mixing devices with the feeders for the binder component and for the hardener component,

Fig. 10

a view of the mixing device, in which the rotor part is inserted in the stator and the stator part is shown cut,

Fig. 11

a cross section through the mixing device with cut stator and cut rotor part,

Fig. 12

a longitudinal section through the stator,

Fig. 13

a top view of the stator, wherein the top view from the direction of the inlet openings,

Fig. 14

a side view of the rotor part of the mixing device and

Fig. 15

a partial cross-section through the rotor part and the stator along an annular annular mixing zone within the mixing chamber, wherein the teeth of the stator and the teeth of the rotor part are hatched hatched.

The figures are merely an exemplary technical embodiment of the present invention.

This in Fig. 1 illustrated device system 100 for producing a ready-made filler for the filling of surfaces, such as those of vehicle bodies, by mixing a binder component A with at least one hardener component B. comprises as a system component arranged in a device component 300 plate-shaped support plate 104 with an inlet opening 217a for supplying the binder component A and in the embodiment shown in the drawing with two inlet openings 217b, 217'b for the supply of the hardener component B from On the support plate 104 arranged storage containers 90, 91, 92 and with a number of inlet openings 217a, 217b, 217'b corresponding number of outlet openings 227a, 227b, 227'b, which are connected via supply channels 237a, 237b, 237'b together , and as a further system component a mixing device 1.

The device component 300 comprises a base 101 with a drive motor 102, and a holder 103 for a mixing device 1, which consists of a stator 16 and a rotor part 19, wherein between the two cylindrical parts 16 and 19, an annular gap is formed, which is the actual mixing chamber 14 forms. The base 101 has a support plate 104 for receiving a reservoir 90 for the binder component A and in the in Fig. 1 . 2 . 10 and 12 shown embodiment, two reservoir 91, 92 for a hardener component B, B1. It can also be provided more than two reservoir for the curing agent component B. The storage containers 90, 91, 92 are non-slip and fixedly positioned on the support plate 104. The outlet openings of the storage container 90, 91, 92 correspond to inlet openings 217a, 217b, 217'b in the support plate 104. These inlet openings 217a, 217b, 217'b are connected via supply channels 237a, 237b, 237'b in the support plate 104 in the Support plate 104 formed outlet openings 227a, 227b, 227'b in combination, which in turn correspond to inlet openings 17a, 17b, 17'b of nozzle-like introductions of the mixing device 1 when the mixing device 104 is attached to the support plate 104 and locked thereto, so that binder component A pressed out of the storage containers 90, 91, 92 and hardener component B, B1 via the supply channels 237a, 237b, 237'b through the outlet openings 227a, 227b, 227'b in the support plate 104 the inlet openings 17a, 17b, 17'b of the mixing device 1 is supplied when the device component 300 is put into operation ( Fig. 2 and 2A ). By means of motor-operated hydraulic cylinder 110, 111, 112 are held in the reservoirs 90, 91, 92 held piston rods whose free ends carry plate-shaped piston, so that upon operation of the hydraulic cylinder 110, 111, 112, the piston rods with the in the interiors of the reservoir 90th , 91, 92 are moved in the piston rod longitudinal direction in order to press the contents of the reservoir 90, 91, 92 in the mixing device 1. The operation of the motor 102, ie the switching on and off, is controlled via the actuating lever 115, so that the filler produced can be removed in the respectively desired amount to a spatula SP ( Fig. 1 and 2 ).

For guiding and holding the piston rods, an upper transverse strut 108 with a lateral guide 109 is provided. Provided on the cross brace 108 are a front columnar side brace 106 and a rear side columnar brace 107, thereby achieving high device endurance and flexural strength. Arranged on the side struts are hinges or latching elements (not shown) for receiving a transparent protective cover 200 for covering the area between the support plate 104 and the upper cross strut 108 to ensure the safety of the operator of the device component 300. On the side strut 106, a contact switch 113 is provided as a safety switch, which completely shuts off the device component 300, should the cover not be closed ( Fig. 1A and 1B ). This protective cover 200 is made of a clear or transparent plastic, preferably Vitak (trade name).

This in Fig. 1 Device 100 shown comprises a mixing device 1 for mixing two components, wherein via the reservoir 90 the Binder component A and two reservoirs 91, 92, the curing agent component B, B1 is supplied.

In the Fig. 9 . 9A and 10 illustrated and designed as a disposable component mixing device 1 comprises a stator 16 and a rotor part 19. The rotor part 19 is inserted into the stator 16 and rotatably mounted in this. At C, the drive for the rotor part 19 attacks ( Fig. 9 ). For supplying the mixed material, the stator part 16 has inlet openings 17a, 17b and 17'b, wherein the binder component A is fed through the inlet opening 17a and the hardener components B, B1 are fed through the two inlet openings 17b and 17'b. To illustrate the supply of the three components, respective arrows are labeled A, B and B '. The rotor part 19 is rotatably mounted about a longitudinal axis 20, wherein the ends of the rotor part 19 projections 22 are provided, which rotate with the rotor part 19 and extend into the inlet opening 17 a into it. Thus, an increase in the flowability of the thixotropic binder component A is effected, wherein the projections 22 are repeatedly attached to the rotor part 19 at the end.

The drive of the rotor part 19 of the mixing device via a not shown in the drawing and arranged in the support plate 14 drive means, which is preferably an electric motor drive, the drive shaft is formed in its free end so that a coupling with the drive port 2 of the rotor part 19 of the mixing device can take place when the mixing device 1 is placed on the support plate 104 and locked thereto. The coupling of the drive with the drive port 2 of the rotor part 19 is in Fig. 9 indicated by the arrow X1.

Another possibility for mounting the mixing device 1 on the device 1 is that attached to the holder 103 of the base 101 or on the support plate 104 of the device 1, the mixing device 1 is, in which case this holder 103 receives the drive means for the rotor part 19.

The attachment and mounting of the mixing device 1 to the support plate 104 of the device 100 by means of an annular support 120. For this purpose, the stator 16 carries at its the inlet openings 17a, 17b, 17'b facing away from the end of the annular support 120 120, the fastening apertures 121 and the bayonet-type releasably and rotatably connected to the stator part 16, wherein the rotatability of the mixing device by means of stops 122, 123; 122a, 123a is limited such that a fit of the inlet opening 17a for the binder component A with the supply of the binder component A and at the same time a fit of the two inlet openings 17b, 17'b for the hardener component B with the feeds for the Hardener component B is achieved.

This annular support 120 has two opposing arcuate, slot-shaped openings 125, 135, each of which through openings 125, 135 two guide portions 125a, 125b, 135a, 135b having different widths, of which the respective wider guide portion 125a, 135a for insertion one of two formed on the lower peripheral edge 16 a of the stator 16 molded L-shaped guide cam 140, 140 ', wherein the width of the wider guide portion 125 a; 135a corresponds to the length of the free angled leg 140a, 140'a of the guide cam 125, 135 and of which the narrower guide portion 125b, 135b has a width which is the thickness of the integrally formed on the lower peripheral edge 16a of the stator 16 and parallel to the longitudinal direction the mixing device 1 extending leg 140b, 140'b of the L-shaped guide cam 140, 140 'corresponds.

The respective outer wall portion 125c, 135c of the narrower guide portion 125b, 135b has to form tongue-like edge regions 127, 137 web-like wall portions 125d, 135d, so that groove-like recesses are formed whose depth is approximately the strength of the angled leg 140a, 140'a of the L-shaped guide cam 140, 140 'corresponds.

The annular holder 120 is made of a plastic or a metal.

The annular support 120 is used as follows: On the support 103 of the base 101 of the device component 300 or on the support plate 104, the annular support 120 is fixed such that the slot-like openings 125, 135 with their wider guide portions 125a, 135a and with their narrower Guide portions 125b, 135b of the mixing device 1 are facing ( Fig. 4 ). After attachment of the annular support 120, the mixing device 1 is placed on the holder 120 in such a way that the L-shaped guide cams 140, 140 'of the mixing device 1 are passed through the wider guide portions 125a, 135a of the slot-shaped openings 125, 135. Thereafter, the mixing device 1 is rotated about its longitudinal axis until the free legs 140a, 140 'of the L-shaped guide cam 140, 140' at the ends of the narrower guide portions 125b, 135b of the slot-shaped openings 125, 135 abut. In this case, the free legs 140a, 140'a of the L-shaped guide cam 140, 140 'engage under the tongue-like edge regions 127, 137 of the narrower guide sections 125b, 135b, which run adjacent to the circumferential edge of the annular holder 120 ( Fig. 6 ). The mixing device 1 is thus held like a bayonet on the annular holder 120 and thus on the holder 103 of the base 101 of the device component 300. Upon rotation of the mixing device 1 in the opposite sense, the bayonet lock is unlocked and the mixing device. 1 can be removed from the device 100 to exchange a used mixing device 1 for a new mixing device. As a result of this type of mounting of the mixing device 1 on the device component 300, after the mixing device 1 has been inserted into the annular holder 120, the rotatability of the mixing device 1 by means of the stops 122, 123, 122a, 123a at the ends of the slot-like openings 125, 135 of the annular support 120, 130 is limited such that a fit of the inlet opening 17a for the binder component A with the supply for the binder component A and at the same time a fit of the two inlet openings 17b, 17'b for the curing Component B is achieved with the supplies for the hardener components B, B1 ( Fig. 3 ).

Due to the projections 22 at the end of the rotor part 19 kinetic energy is introduced into the binder component A to reversibly destroy their thixotropy, the binder component A can thereby more uniform with the two hardener components B when entering a subsequently arranged mixing chamber 14 and mix B1. The mixing chamber 14 is formed ringpaltartig between the rotor part 19 and the stator 16. The components A, B and B1 to be mixed are supplied to the mixing device 1 in such a way that they first connect to one another in the interior of the mixing chamber 14. This leaves after the completion of the mixing process and the separation of the mixing device 1 from a corresponding base station all Mischgutreste in the mixing device 1. This is designed as a disposable part, which is disposed of after use and replaced by a corresponding new part. The hardener components B and B1 are fed to the mixing chamber 14 via the two inlet openings 17b and 17'b, in which the hardener components are mixed with the binder component A. In this case, the supply of the components A, B and B1 takes place in the following order: First, a small amount of hardener component B is supplied to the mixing chamber. Thereafter, simultaneously the binder component A and the Hardener component B1 fed so that the entering into the mixing chamber binder component A meets the already located in the mixing chamber hardener component B and already mixed with this. As a result of this procedure, binder component A flowing into the mixing chamber strikes the already existing hardener component B and is mixed therewith, so that no proportion of binder component which has no hardener component can escape. It thus always occurs with the hardener component mixed binder component from the mixing chamber, so that the first exiting mixture contains hardener component and can be processed immediately. Thereafter, hardener component of the mixing chamber 14 is supplied before the binder component flows into the mixing chamber. This flow of hardener component is achieved by control technology by a corresponding control of the metering devices 90, 91 and 92 for the two hardener components and for the binder component takes place ( Fig. 10 ). Furthermore, the stator of the mixing device 1 may also have only one feed for the hardener component. In this case, via the control of the metering device, first a supply of a small amount of hardener component into the mixing chamber 14, whereupon the supply of the binder component then takes place together with the supply of further hardener components.

With the aid of upstream metering devices 90, 91, 92, the components to be mixed are conveyed continuously through the mixing chamber 14 to a dispensing opening 21 arranged on the stator part 16, which is arranged behind the inlet openings 17a, 17b and 17'b and downstream of the mixing chamber 14 in the flow direction is. At the stator 16, a plurality of first mixing teeth 23 are arranged, which extend radially inwardly into the mixing chamber 14, whereas on the rotor part 19 second mixing teeth 24 are arranged, which extend radially outwardly into the mixing chamber 14.

By means of a rotational movement of the rotor part 19 in the stator part 16 thus the mixing teeth 23, 24 are moved against each other, so that a mixing of the two components A, B and B1 is effected. If the advance of the hardener component B has already taken place and a part of the following binder component A has mixed with the hardener component B and the other two components A and B1 are pressed into the mixing chamber, the further supply of the hardener component Component B can be adjusted. Binder component A and hardener component B1 supplied in the mixing chamber 14 are then mixed with one another. These two components A and B1 are supplied in a predetermined ratio as long as the mixing chamber until the particular desired amount of mix is obtained. The first mixing teeth 23 are arranged on a first mixing tooth plane 10 and the second mixing teeth 24 on a second mixing tooth plane 11. In total, six first mixing tooth planes 10 and six second mixing tooth planes 11 are provided, which are arranged interleaved alternately in the axial direction along the longitudinal axis 20. The second mixing teeth 24 run radially through the rotational movement of the rotor part 19 in the interstices of the first mixing teeth 23, which are formed at rest on the stator 16. This results in a shearing or dividing movement between the mixing teeth 23 and 24, so that the mixture undergoes optimum mixing.

Pre-mixing of the two components A, B and / or B1 is effected by larger second mixing teeth 24, which are arranged at the front end of the rotor part 19, so that these components are premixed by this mixing tooth plane. The larger trained end-mounted second mixing teeth 24 are arranged fourfold on the circumference of the rotor part 19 and each go into the likewise fourfold existing projections 22 on. At the open end, the stator part 16 has a receiving opening, in which a cylindrical bearing portion 27, which is integrally formed on the rotor part 19, a bearing of the rotor part 19th causes in the stator 16. Thus, a radial bearing of the rotor part 19 is provided in the stator 16. The diameter fit of the cylindrical bearing portion 27 on the rotor part 19 is dimensioned in diameter so that a corresponding slide bearing assembly is formed.

Fig. 11 shows a cross section of the mixing device 1, wherein both the stator 16 and the rotor part 19 are shown in cross section. Here, the arrangement of the mixing teeth 23 and 24 is illustrated in particular, wherein the second mixing teeth 24 are formed on the rotor part 19 such that with respect to an injection molding production of the rotor part 19 only a single division plane for the application of a one-stroke injection molding tool is sufficient. Furthermore, it can be seen that the mixing teeth 23, 24 are each integrally formed on the stator part 16 and on the rotor part 19, so that the mixing device 1 consists only of these two components. The rotor part 19 has an inner region, which is hollow as a recess 29. In the recess 29 locking ribs 25 extend radially inwardly, wherein on the circumference a total of eight locking ribs 25 are arranged. The stator part 16 comprises a crescent-shaped detent contour 15, which is provided on the outer circumference.

Fig. 12 11 illustrates a cross section of the stator part 16, which is shown cut along the longitudinal axis 20. Thus, the arrangements of the inlet openings 17a, 17b, 17'b are shown in section, which open directly into the mixing chamber 14. Internally located in the wall of the stator 16, the first mixing teeth 23 are arranged on the total of six levels, wherein a total of twelve first mixing teeth 23 are provided distributed over the circumference on a respective mixing tooth plane. At the opposite end of the mixing chamber 14 located at the inlet openings 17a, 17b and 17'b, a discharge opening 21 is provided, which leads the mixture radially outward from the mixing chamber 14 ( Fig. 9 ). On the outer periphery of the stator 16 are plate-shaped projections 18th formed, with a total of three plate-shaped projections 18 are provided at the height of the discharge opening 21 and the end of the stator 16. The inlet opening 17a or 17b merges at the height of a support bearing surface 12 into the mixing chamber 14, the support bearing surface 12 forming an axial bearing of the rotor part 19 (not illustrated here). The stator part 16 is at the rear end, which is opposite to the inlet openings 17a, 17b, 17'b, open at the end, so that the rotor part 19 can be joined through this opening in the stator 16. In the area of the opening, the stator part 16 has a cavity 28 designed as a section, in order to receive the mixture which moves in this area. In order to allow the mixture to escape if appropriate, outlet openings 13 are introduced into the wall, which are arranged a total of twice on the circumference.

In Fig. 13 is a plan view of the stator 16 is shown, which shows in particular the arrangement of the inlet openings 17a, 17b, 17'b. The inlet opening 17a is eccentric and has a circular cross-section. In addition to the inlet opening 17a, two inlet openings 17b, 17'b are provided in order to enable a redundant supply of the hardener component into the mixing chamber 14. The two inlet openings 17b, 17'b are formed spaced apart from each other and are fed via feed lines and metering devices 91, 92 which are also separate from one another. Furthermore, the arrangement of the discharge opening 21 is shown, which conveys the mix laterally from the stator 16 also.

In Fig. 14 the rotor part 19 is shown, wherein in particular the second mixing teeth 24 are shown with respect to their distribution on the circumference of the rotor part 19. A total of twelve mixing teeth are provided on a mixing tooth plane 11, so that a total of 72 mixing tooth planes 11 mixing teeth are arranged on the rotor part 19. In addition, there are six more at the upper part of the rotor part 19 Mixing teeth 24 for pre-mixing of the mix. These go into the projections 22, which are also four times arranged on a type extension of the rotor member 19.

Fig. 15 illustrates a partial cross section through the mixing device 1 along the annular circumferential mixing zone, wherein the mixing teeth 23 of the stator 16 shaded and the mixing teeth 24 of the rotor member 19 are shown unshaded. The mixing teeth 23 and 24 of the individual mixing tooth planes are arranged at a distance from one another in such a way that the teeth have tooth gaps with one another. Between the individual mixing tooth planes, the mixing teeth 23, 24 have gaps through which, during the rotational movement, the mixing teeth of the other side lying opposite the relevant gap run through. By a continuous supply of the components A, B in the mixing chamber 14, there is a division of Mischgutstromes, ie, the Mischgutstrom flows respectively on one side of the respective tooth 23, 24 and the other part on the other side of the respective tooth 23, 24th past. Since this division takes place in several stages corresponding to the number of levels or levels of mixing teeth, the mix is mixed intensively.

The mixing teeth 23 have end faces 31, which face the end faces 30, which are integrally formed on the second mixing teeth 24. Upon contact of the mixing teeth 23 and 24, a sliding can thus take place without material being removed from the mixing teeth. This can be done in particular when the rotor part 19 is offset relative to the stator part 16 by an amount x, so that the mixing teeth 23, 24 meet. The end faces 30, 31 are beveled at an angle α, wherein the angle α is preferably 15 °.

For the operation of the device 100 is procedurally proceeded so that the pistons 110, 111, 112 are used with the piston plates by means of their piston rods 110, 111, 112 by hand in the open reservoir 90, 91, 92 and as soon as the piston plates below the opening edges the reservoir 90, 91, 92 come to rest, the motor 102 for the hydraulics for actuating the piston rods 110, 111, 112 is put into operation; only then will the individual mixing processes be carried out. By this measure, injuries are prevented, which occur when fingers of an operator's hand in the region of the opening edge, in particular of the reservoir 90 for the binder component A, come to rest and be clamped by the relatively high pressure in the container direction moving piston plate.

With the pivotability of the door-like cover, the commissioning or decommissioning of the drive means of the mixer takes place such that when opening the cover, the drive means are put out of operation. For this purpose, a safety switch, not shown in the drawing, is installed in the cover.

To improve the stability of the device, it is advantageous if the base 190 of the device consists of a double-T-profile 191, 191a (FIG. Fig. 1 ) or consists of two mutually parallel bars 192, 192 a, which are connected to each other via the device itself ( Fig. 1A ).

Claims (20)

1. A device (100) for mixing at least two components, particularly a binder component (A) and a hardener component (B), into a pasty or liquid mixture for producing a ready-to-use body filler for filling surfaces, for example, of car bodies, with a support plate (104) that is arranged in a device component (300) and features an inlet opening (217a) for supplying the binder component (A) from a reservoir (90) arranged on the support plate (104) and at least one other inlet opening (217b, 217'b) for supplying the hardener component (B; B') from a reservoir (91; 92) arranged on the support plate (104), as well as outlet openings (227a, 227b, 227'b) that are connected to the inlet openings (217a, 217b, 217'b) via supply channels (237a, 237b, 237'b) in the support plate (104), and with a mixing device (1) that can be functionally connected to the support plate (104) and features inlet openings (17a, 17b, 17'b) that correspond to the outlet openings (227a, 227b, 227'b) and the number of which corresponds to the number of outlet openings (227a, 227b, 227'b), wherein the mixing device (1) features a hollow, cylinder-like stator part (16) with a dispensing opening (21) for the mixture arranged in its wall and a rotor part (19) that is concentrically arranged in the stator part and rotatable about a longitudinal axis (20), wherein a mixing chamber (14) in the form of an annular gap is formed between the stator part (16) and the rotor part (19), wherein several first mixing teeth (23) formed on the stator part (16) extend radially inward and several second mixing teeth (24) formed on the rotor part (19) extend radially outward into the mixing chamber (14) in order to move the mixing teeth (23, 24) relative to one another due to a rotational movement of the rotor part (19) in the stator part (16) and to thusly mix the components (A, B), wherein the stator part (16) features at least one, preferably two inlet openings (17b, 17'b) for the hardener component (B) that are connected to the mixing chamber (14) and wherein the first mixing teeth (23) are arranged on at least one first mixing teeth plane (10) and the second mixing teeth (24) are arranged on at least one second mixing teeth plane (11), wherein the mixing teeth planes (10, 11) are axially offset relative to one another in a tiered fashion in the direction of the longitudinal axis (20) such that the second mixing teeth (24) of the rotor part (19) radially revolve in the respective intermediate spaces of the first mixing teeth (23) of the stator part (16), wherein several mixing teeth planes (10, 11) are provided on the rotor part (19) and/or on the stator part (16), and wherein the number of mixing teeth planes (10, 11) on the rotor part (19) and on the stator part (16) are preferably identical,
   characterized in
   that the stator part (16) carries an annular bracket (120) on its end (16a) that faces away from the inlet openings (17a, 17b, 17'b) for the functional connection between the mixing device (1) and the support plate (104), wherein said bracket features mounting openings (121) and is connected to the stator part (16) in a detachable, lockable and rotatable fashion similar to a bayonet joint, and wherein the rotatability is limited by means of limit stops (122, 123; 122a, 123a) in such a way that a fit of the inlet opening (17a) for the binder component (A) in the mixing device (1) with the corresponding outlet opening (227a) in the support plate (104) and simultaneously a fit of the inlet openings (17b, 17'b) for the hardener component (B) in the mixing device (1) with the corresponding outlet openings (227b, 227'b) in the support plate (104) is achieved.
2. The device according to Claim 1,
   characterized in
   that the binder component (A) and the hardener component (B) are supplied to the mixing chamber (14) by means of control devices in such a way that the hardener component (B) is supplied to the mixing chamber (14) with a slight advance or pre-injection referred to the supply of the binder component (A), wherein a quantity between 0.1 gram and 5 gram, preferably 0.2 gram, of pasty or liquid hardener component (B) is sprayed or injected into the mixing chamber (14) prior to or at the beginning of the continuous mixing process by means of the counterrotating mixing teeth (23, 24).
3. The device according to one of Claims 1 or 2,
   characterized in
   that a respectively outer wall region (125c; 135c) of a narrower guide section (125b; 135b) features web-like wall sections (125d; 135d) with groove-like recesses such that tongue-shaped edge regions (127, 137) are formed, wherein the depth of said groove- like recesses approximately corresponds to the thickness of the angled limb (140a; 140'a) of an L-shaped guide cam (140, 140'), and wherein the number of L-shaped guide cams may be greater than two L-shaped guide cams.
4. The device according to one of preceding Claims 1 to 3,
   characterized in
   that the annular bracket (120) consists of a plastic or metal.
5. The device according to one of preceding Claims 1 to 4,
   characterized in
   that the mixing teeth (23, 24) respectively feature front end surfaces (30, 31) that respectively face one another in the axial direction in order to be mutually positioned when an axial force acts between the stator part (16) and the rotor part (19).
6. The device according to Claim 5,
   characterized in
   that the front end surfaces (30, 31) are inclined by an angle (alpha) referred to a plane that lies perpendicular to the rotational axis such that the front end surfaces (30, 31) slide on one another during the mixing process without material being removed from the mixing teeth (23, 24) and introduced into the mixture.
7. The device according to one of preceding Claims 1 to 6,
   characterized in
   that the inlet openings (17a, 17b) lead directly into the mixing chamber (14), wherein the inlet opening (17b) for supplying the hardener component (B) is provided twice in order to realize a redundant supply of the hardener component (B) to the mixture.
8. The device according to one of preceding Claims 1 to 7,
   characterized in
   that the end of the rotor part (19) features projections (22) that protrude into the inlet opening (17a) for supplying the binder component (A) and rotate together with the rotation of the rotor part (19) in order to already reduce the thixotropy of the binder component (A) in the supply channel of the inlet opening (17a).
9. The device according to one of preceding Claims 1 to 8,
   characterized in
   that the end of the rotor part (19) features an open, hollow cylinder-like recess (29), into which a core of adapted geometry can be inserted, wherein the rotor part (19) can be driven by means of said core.
10. The device according to Claim 9,
    characterized in
    that the recess (29) features locking ribs (25) that extend radially inward from the body of the rotor part (19) and engage into corresponding recesses in the core in order to transmit the driving torque for operating the mixing device (1) from the rotatorily driven core to the rotor part (19).
11. The device according to one of preceding Claims 1 to 10,
    characterized in
    that the rotor part (19) features sealing lips (26) in order to seal the mixing chamber (14) between the rotor part (19) and the stator part (16) and to prevent leaking of the mixture.
12. The device according to one of preceding Claims 1 to 11,
    characterized in
    that the stator part (16) features at least one plate-shaped integrally formed element (18) on the outer circumference, wherein at least one plate-shaped integrally formed element (18) comprises a crescent-shaped locking contour (15), into which a pin element engages during the insertion of the mixing device (1) in order to secure the radial position of the dispensing opening (21) in the stator part (16).
13. The device according to one of preceding Claims 1 to 12,
    characterized in
    that the rotor part (19) features a cylindrical bearing section (27) in order to create a radial support in the form of a sliding bearing arrangement in the stator part (16).
14. The device according to one of preceding Claims 1 to 13,
    characterized in
    that the stator part (16) comprises a supporting surface (12), on the front end of which the rotor part (19) lies and slides with the mixing teeth (24) formed thereon in order to create an axial sliding bearing arrangement.
15. The device according to one of preceding Claims 11 to 14,
    characterized in
    that a hollow space (28) is formed between the sealing lips (26) in order to trap any mixture passing through the sealing lips (26).
16. The device according to Claim 15,
    characterized in
    that the stator part (16) features at least one outlet opening (13) on its circumference in the cylindrical section of the hollow space (20) in order to prevent leaking of the mixture on the part of the cylindrical bearing section (27).
17. The device according to one of preceding Claims 1 to 16,
    characterized in
    that at least the stator part (16) is made of a transparent material, wherein the transparent material consists of a material from the group of plastics comprising a polycarbonate (PC), a polymethyl methacrylate (PMMA) and/or a styrene-acrylonitrile copolymer (SAN) or PP in random quality.
18. The device according to one of preceding Claims 1 to 17,
    characterized in
    that the rotor part (16) is made of polyoxymethylene (POM), polyacetal and/or polyformaldehyde.
19. The device according to one of preceding Claims 1 to 18,
    characterized in
    that the dispensing opening (21) is realized in the form of a radial outlet on a sidewall section of the stator part (16), wherein the dispensing opening is preferably realized circularly and/or arranged radially referred to the perpendicular and laterally offset thereto on the outer surface of the stator part (16) such that it points sideward.
20. The device according to one of preceding Claims 1 to 19,
    characterized in
    that the size of the dispensing opening is realized such that 100 g of a ready-to-use body filler are essentially dispensed in 10 s.

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