EP2027912B1 - 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 for producing a ready-to-use filler compound by mixing at least two components, in particular from a binder component and a hardener component, to a pasty or liquid mixture, 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 engage, which compress the tube section and simultaneously drive around a longitudinal axis. 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.

Such a device is also from the DE 20 2006 014 187 U1 , which discloses a device according to the preamble of claim 1, known. A device is described for producing a ready-to-use filling compound for filling surfaces, in particular vehicle bodies, by mixing at least two components, in particular a binder component (A) and a hardener component (B). For this purpose, there is a mixing device consisting of a hollow cylinder-like stator part and a rotor part which is rotatably and concentrically received about it in this case about a longitudinal axis. Between the rotor part and the stator part is an annular gap. The mixing device is provided with at least one introduction nozzle for the supply of the binder component (A) and at least one introduction nozzle for the supply of the hardener component and with a discharge opening for dispensing the mixed material. Between the inlet nozzle and the discharge opening, the mixing chamber is formed, within which the components (A, B) mix with each other.

By the EP 1 627 690 A For example, there is known an adhesive gun for application, in particular a two-component adhesive, which readily allows a wide range of mixing ratios between a relatively tough adhesive component and a relatively liquid adhesive component in an adhesive gun. 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 a plurality of 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, which is adapted for pressing out the component from the cartridge and a Drive device for the piston, in which the drive speed is adjustable, wherein the drive device comprises a stepper 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 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 removed by grinding of the body and then the body has to be filled again. If such imperfections go unnoticed in 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.

A further 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 simultaneous supply of hardener component and binder component to the mixing device is ensured.

It is therefore an object of the present invention to provide a device for mixing a binder component and a hardener component to a mix, in which a part of the hardener component with a flow against the inlet of the binder component and other hardener components the mixing device is supplied so that in the mixing chamber of the mixing device when entering the binder component in the mixing chamber is already present a small amount of hardener component. Furthermore, a balance of fill levels in the reservoirs for the binder component and the hardener component to be achieved at the beginning of the tapping of the two components from the reservoirs of equal surface heights of both the hardener component and the binder component in their Outgoing storage containers, the device should be designed as a stand or wall mounted device or portable.

Preferably, the device should be designed as a carriage, so that supply hoses and electrical cables are avoided, thus creating a fully functional device which can be used in very large-scale operations or production halls.

This object is achieved on the basis of a device according to the preamble of claim 1 in conjunction with its characterizing features.

The invention includes the technical teaching that the apparatus for producing a ready-to-use filler for filling surfaces, in particular vehicle bodies, by mixing at least two components, in particular a binder component A and a hardener component B, by means of a mixing device from a hollow cylinder-like stator part and a rotor part rotatably accommodated therein concentrically about a longitudinal axis and an annular gap forming the mixing chamber between the rotor part and the stator part to form a pasty or liquid mixture, the mixing device having at least one inlet connection for supplying the binder component A and at least one further inlet opening for the supply of the hardener component B and is provided with a discharge opening for discharging the mixed material, wherein between the inlet nozzle and the discharge opening, the mixing chamber is formed, innerha lb of which the components A, B mix with each other, a support plate with two vertical, column-like struts connected in the upper region via a cross strut, between which a support plate forming filling head with holders and receptacles for a reservoir for the binder component A and is arranged for three reservoir for the hardener component B, B1, B2 with guided in the reservoirs and connected to hydraulic cylinders piston rods, wherein a mounting and guiding element for the piston rods above the reservoir and a The first drive device for actuating the hydraulic cylinders or the piston rods for the reservoir for the binder component A and two reservoirs of the three reservoirs for the hardener component B, B1, B2 and for the mixing device, a second drive device and a third drive device for the Actuating the hydraulic cylinder or the piston rod are provided for the third reservoir for the hardener component B2, wherein the three motor drive devices are combined in a program switch or a control device such that before the start of the mixing process and the actuation of the hydraulic cylinder or the piston rods for the reservoir for the binder component A and for the two reservoirs for the hardener components B, B1, the third drive device for the third reservoir for the hardener component B2 ge regardless of all other functions in operation is set, so that before the start of the actual mixing process, a flow of hardener component B2 for about 1 seconds long, wherein after the start of the rotational movement of the rotor part of the mixing device and the supply of the binder component A and the hardener components B, B1, the third Drive device for the third reservoir for the hardener component B2 is operated with a lag of 1 second for a further supply of hardener component B2, wherein with complete emptying of the third reservoir for the hardener component B2 and one of the in a box-like container on the transverse strut of the two struts of the base arranged third drive device driven rack as piston rod has reached the lower portion of the third reservoir for the hardener component B2, in a further downward movement of the box-like container which is fixed on one side by means of a hinge on the longitudinal strut, so raises that the box-like container is raised about 2 mm, via this movement of the box-like container a visual signaling device in operation and the entire means for replacing the empty third reservoir for the hardener component B2 is set against a full reservoir out of service, the carrier plate is movable and has a power source for the actuation of the hydraulically operated drive devices for the piston rods for the reservoirs, or for the operation of the electronic drive devices for the piston rods for the reservoir and for the operation of the mixing device, and wherein the device Wall or floor unit or by hand or motor driven driven.

According to the invention, the collecting container consists of a cup-like, cylindrical or other geometric cross-sectional shape and closed on one side mold body whose wall has two juxtaposed, standing with the interior of the molding in connection pipe socket, which are arranged and designed such that the collecting container can be plugged onto the filling head by means of insertable into the outlet openings of the filling head for the hardener components B, B1 pipe socket. If the collecting container is no longer needed, then the collecting container is withdrawn from the filling head and the mixing device plugged.

The molded body of the collecting container has on its wall surface opposite the two pipe sockets a pipe socket into which the clamping device provided on the device or the drive shaft for the mixing device is engaged for holding and centering the collecting container.

Advantageous developments of the invention are specified in the dependent claims.

Thus, another embodiment provides that the support plate of the device has a support plate designed as a filling head for receiving the reservoir for the binder component A and the three reservoir for the hardener components B, B1, B2, wherein the four reservoir non-slip or stationary are positioned on the filling head and correspond with their outlet openings with inlet openings of supply channels in the filling head, the outlet openings with the introduction piece for the binder component A and for the hardener components B, B1, B2 of the mixing device or the insertion of the hardener components B, B1, B2 of a replaceable against the mixing device collecting containers for receiving and disposing of the predetermined amount of hardener component B, B1, B2 in the reservoirs for the hardener components B, B1, B2 can be brought into operative connection, and wherein the Reservoir in their Interiors of the container contents act upon plate-shaped piston by means of motor-operated hydraulic cylinders or otherwise formed drive devices or by manual operation in the container longitudinally movable piston rods, by means of the contents of the reservoir for the binder component A and for the hardener components B, B1, B2 in the mixing device or to partial contents of the reservoir for the hardener components B, B1, B2 can be pressed into the collecting container.

Furthermore, the invention is based on the fact that the filling heights of the hardener component B and the binder component A are different in their reservoir, resulting in that mixing ratios between the two components are obtained at the beginning of the tapping, the one Contain greater amount of hardener components, so that a predetermined and required mixing ratio is not obtained. Already at the beginning of the bleeding of the components from their storage containers in an amount required for the mixture, it is imperative that the surface height of both the binder component A in their reservoir and the hardener component B, B1 are exactly equalized in their reservoirs , For this reason, the filling levels on the reservoir for the hardener component B, B1 are greater than the filling level of the binder component A in their reservoir. This overfilling is in most cases about 10 mm. When inserting a new storage container for the binder component A and the reservoir for the hardener components B, B1 in the mixing device is first a consonance of all three components A, B, B1 produce. This is achieved by manually actuating a handle-like handle provided on the piston rods, with which first the piston rods in the reservoirs for the hardener components B, B1 are moved until the overfilled amount of hardener component B, B1 is pushed out of the storage containers and is introduced into the collecting container used in the device. The operation of the handle is carried out until the plate-shaped piston has acted in the reservoir for the binder component A this; then the overfilled amount of hardener component B, B1 is pushed out.

In order to bring the filling level of the hardener components B, B1 to the filling level of the binder component A, the handle designed as a pull lever of the device is operated at half the height of the piston rods or the compressed air cylinder. After inserting the new reservoir for the binder component A and the two cartridge-like reservoir for the hardener component B, B1 in the device, the handle is pulled down with all the force, ie with about 30kg down and that long until it can not go on. Then all levels are equalized. Since the binder component A has a much higher viscosity compared to the hardener component B, B1 and the size of the surface of the binder component A in their reservoir 98% of the total surface, it is not possible binder component A from their reservoir push out by manual force, because the binder component A requires a pressure of about 2 bar to emerge down from the outlet opening of the reservoir or from the outlet opening of the filling head. In a 10 kg reservoir for the binder component A, a pressure of 0.15 bar is exerted on the binder component A. Of course, this is not enough to transport Binder Component A, as that would require 400kg of traction. This is not achievable. With a 3 kg storage container for the binder component A, a pressure of 0.4 bar is produced on the binder component A with 30 kg tensile force. This is also not sufficient to push binder component A from its reservoir into the mixing device. The hand force is thus never enough to squeeze out binder component A. In order to eliminate the overfilling in the storage containers for the hardener component B, B1, the pipe sockets of the collecting container are inserted into the outlet openings of the filling head of the device for the hardener component B, B1, after which the handle is pulled down with all force. It is then prepared to function for mixing with the device and its mixing device. The collecting container receiving the amount of overfilling of the hardener component B, B1 is then replaced with the mixing device, so that the mixture of binder component A and the hardener components B, B1 can be produced. For all subsequent mixtures no overfilling is to be eliminated, this is only again the case, if new storage containers for the binder component A and the hardener component B, B1 into the device are used.

The mixing device has a hollow-cylinder-like stator part and a rotor part which is rotatably mounted concentrically about a longitudinal axis, the mixing chamber being annularly formed between the stator part and the rotor part, wherein a plurality of first mixing teeth formed on the stator part extend radially inwards and a plurality of second mixing teeth are formed on the rotor part extend radially outward 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 components A, B, B1, B2, wherein the stator part has three inlet openings for the curing agent connected to the mixing chamber. Component B, B1, B2.

The stator carries at its end facing away from the inlet openings an annular holder having fastening openings 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 for the binder component A and at the same time a fit of the inlet openings for the hardener component B, B1, B2 is achieved with the feeds for the components.

This annular support has two opposing parallel to the peripheral edge of the bracket arcuate, slot-shaped openings of which each slot-shaped aperture 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 strength of the integrally formed on the lower peripheral edge of the stator and extending parallel to the longitudinal direction of the mixing device Leg of the L-shaped guide cam corresponds.

An advantageous embodiment of the present invention provides that the inlet openings open directly into the mixing chamber of the mixing device, wherein the inlet opening for supplying the hardener component is present in triplicate to provide a redundant supply of the mixed material with the hardener component and the possibility in that hardener component B2 from the third storage tank with supply and caster of the mixing chamber of the mixing device can be supplied. 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 B, B1, B2 by means of a visual inspection, it is provided that at least the stator part is formed from a transparent material, wherein the transparent material belongs to the group of plastics comprising a polycarbonate (PC), a polymethyl methacrylate (PMMA) and / or a styrene-acrylonitrile (SAN) is formed. It is also of particular advantage to color the hardener component. Through the transparent stator part is the Supply of hardener component visible so that the operator during the operation of the mixing device can control the supply of the hardener component of the visible eye.

As a further advantageous embodiment of the invention, it is provided that 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, and the mixing tooth planes are staggered axially in the direction of the longitudinal axis, so that the second mixing teeth of Rotate rotor part in the respective spaces of the first mixing teeth of the stator radially. Overall, five mixing tooth planes can be provided by the first mixing teeth of the stator part, so that in the respective intermediate spaces the second mixing teeth of the rotor part are arranged on a total of four mixing tooth planes. The mixture passes through from the inlet to the delivery opening, the total of five mixing teeth planes of the first mixing teeth and the four mixing teeth planes of the second mixing teeth.

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 part by the delivery pressure of the components pressed against each other, wherein the obliquely extending face side surfaces slide on each other, without being removed from the teeth material abrasive 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 away 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.

A further advantageous embodiment of the device is that the support frame of the device has an openable, preferably transparent protective cover for covering the reservoir, particularly preferably a circuit breaker in operative connection with the protective cover and the device is provided which turns off the device when the protective cover is open, which consists of a clear plastic or other suitable material and is door-like.

Furthermore, the support frame of the device has front and / or rear receptacle for receiving used or new mixing devices.

The device receiving support plate, which may also be formed like a housing, is designed to be mobile according to another embodiment, wherein the mobility by hand or by motor, preferably by electric motor, can be made. For this purpose, the support plate or the housing is provided with rollers, which are in communication with a drive motor, which together with a power source, in particular a rechargeable battery, preferably for a 24 volt operation, and a pressure vessel with a receiving volume of 25 liters or 50 Liters or even a larger amount for compressed air on the support plate or in the housing are arranged, wherein for the production of compressed air and a compressor can be provided. Such a trained device requires no power connection and no compressed air connection and is thus suitable in large factories with large workshops that z. B. 100 meters and also are more long to be used. For all motor drives of the device is thus 24 volt electricity from the rechargeable battery available, all the drive motors of the device are designed for a 24 volt operation. Hydraulic, ie operated with compressed air drive devices of the device receive the compressed air from the arranged on the support plate or in the housing filled with compressed air pressure vessel, which can be refilled again and again with compressed air, which z. B. can be done by means of the intended compressor. If z. B. the 10 kg binder component A receiving reservoir is still full, less compressed air is needed for filling the drive cylinder cavity as later. Due to the movability of the device, it can be moved to any place where putty is needed.

The fact that the device is designed with rollers and thus can be moved, the device is completely self-sufficient; it can be moved to any processing location, avoiding long distances when the unit is placed firmly in the production hall or workshop. It can be made putty directly on site without the need for connections for compressed air or electricity. It is thus ensured a compressed air and / or power supply for all drive devices of the device.

Fig. 1

eine schaubildliche Ansicht eines erfindungsgemäßen fahr- baren Gerätes zur Herstellung einer gebrauchsfertigen Spachtelmasse für die Verspachtelung von Oberflächen z. B. von Fahrzeugkarosserien mit einer Vorrichtung zum Vermi- schen von zwei Komponenten aus einem Statorteil und ei- nem Rotorteil, wobei beide Teile ineinander eingreifende Mischzähne aufweisen,

Fig. 1A

eine schaubildliche Ansicht des fahrbaren Gerätes mit einer aus zwei über eine Querstrebe verbundene Säulen beste- henden Halterung für die Kolbenstangen und ihre Antriebe für die Vorratsbehälter für die Binder-Komponente und für die Härter-Komponente und mit einer geöffneten Schutzabde- ckung,

Fig. 1B

eine schaubildliche Ansicht des fahrbaren Gerätes mit einer aus zwei über eine Querstrebe verbundene Säulen beste- Fig. 1C henden Halterung für die Kolbenstangen und ihre Antriebe und mit der geschlossenen Schutzabdeckung, eine schaubildliche Ansicht des fahrbaren Gerätes mit einem Vorratsbehälter für die Binder-Komponente und mit drei Vor- ratsbehältern für die Härter-Komponente,

Fig. 1D

eine Seitenansicht des fahrbaren Gerätes nach Fig. 1C,

Fig. 1E

eine schaubildliche Ansicht des fahrbaren Gerätes mit drei Vorratsbehältern für die Härter-Komponente,

Fig. 1F

eine weitere schaubildliche Ansicht des fahrbaren Gerätes,

Fig. 2

eine schaubildliche Ansicht eines Teils des Gerätes mit ei- nem Vorratsbehälter für die Binder-Komponente und mit drei Vorratsbehältern für die Härter-Komponente,

Fig. 3

in einer schaubildlichen Ansicht einen als Standplatte für die Vorratsbehälter, für die Binder-Komponente ausgebildeten Abfüllkopf mit Einlass- und Austrittsöffnungen, Eintrittsöff- nungen für die Komponenten und Austrittsöffnungen, die ü- ber Zuführungskanäle mit den Eintrittsöffnungen verbunden sind, wobei dem Abfüllkopf eine Mischvorrichtung und ein Auffangbehälter zur Aufnahme von aus einer Überfüllung in den Vorratsbehältern für die Härterkomponenten stammen- den Mengen an Härter-Komponenten zugeordnet sind.

Fig. 4

eine Vorderansicht des Abfüllkopfes mit den Austrittsöffnun- gen für die Binder-Komponente und für die beiden Härter- Komponenten,

Fig. 5

eine Ansicht von oben auf den Abfüllkopf mit den Eintrittsöff- nungen für die beiden Härter-Komponenten,

Fig. 6

eine schematische teilweise geschnittene Ansicht des Abfüll- kopfes mit aufgesetzten Vorratsbehältern für die Binder- Komponente und für die beiden Härter-Komponenten mit dem Abfüllkopf zugeordneten Auffangbehälter,

Fig. 7

teils in Ansicht teils in einem senkrechten Schnitt den Vor- ratsbehälter für die Binder-Komponente und den beiden Vor- Fig. 8 ratsbehältern mit gegenüber der Binder-Komponente über- füllten Härter-Komponenten, teils in Ansicht, teils in einem senkrechten Schnitt den Vor- ratsbehälter für die Binder-Komponente und den beiden Vor- ratsbehältern für die Härter-Komponenten, nachdem die die Überfüllung der Härter-Komponenten aus ihren Vorratsbehäl- tern herausgedrückt worden ist, wobei die aus dem Vorrats- behältern herausgedrückte Menge an überfüllter Härter- Komponente in den Auffangbehälters,

Fig. 9

eine schaubildliche Ansicht des Auffangbehälters,

Fig. 10

einen senkrechten Längsschnitt durch den Auffangbehälter,

Fig. 11

eine schaubildliche Ansicht der aus dem Statorteil und dem Rotorteil bestehenden Mischvorrichtung mit steuerbaren Zu- führungen für eine Binder-Komponente und zwei Härter- Komponenten aus mit der Mischkammer verbundenen Vor- ratsbehältern, wobei der Statorteil an seinem den Zuführun- gen für die Komponenten abgekehrten Ende eine mit dem Statorteil lösbar verbundene und mit dem Gerät fest verbun- dene ringförmige Halterung,

Fig. 12

eine vergrößerte Ansicht von oben auf die ringförmige Halte- rung,

Fig. 13

eine vergrößerte Ansicht von unten auf die ringförmige Halte- rung,

Fig. 14

einen senkrechten Schnitt gemäß Linie XIV-XIV in Fig. 12,

Fig. 15

eine Ansicht von unten auf den Statorteil der Mischvorrich- tung, mit den in die Halterung eingreifenden Führungsno- cken,

Fig. 16

eine Seitenansicht eines Teils des Statorteils mit den ange- formten Führungsnocken,

Fig. 17

eine schaubildliche Explosionsdarstellung der Mischvorrich- tung mit dem Statorteil und dem Rotorteil,

Fig. 18

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

Fig. 19

eine Ansicht der Mischvorrichtung, in der der Rotorteil im Statorteil eingesetzt ist und der Statorteil geschnitten darge- stellt ist,

Fig. 20

einen Querschnitt durch die Mischvorrichtung mit geschnitte- nem Statorteil sowie geschnittenem Rotorteil,

Fig. 21

einen Längsschnitt durch den Statorteil,

Fig. 22

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

Fig. 23

eine Seitenansicht des Rotorteils der Mischvorrichtung und

Fig. 24

einen Teilquerschnitt durch den Rotorteil sowie dem Stator- teil entlang einer ringförmig umlaufenden Mischzone inner- halb der Mischkammer, wobei die Zähne des Statorteils schraffiert und die Zähne des Rotorteils unschraffiert darge- stellt sind.

The invention is illustrated by means of embodiments in the drawings. Show it:

Fig. 1

a perspective view of a movable device according to the invention for producing a ready-made filler for the filling of surfaces z. B. of vehicle bodies with a device for mixing of two components of a stator and a rotor part, wherein both parts have intermeshing mixing teeth,

Fig. 1A

2 shows a perspective view of the mobile device with a holder for the piston rods consisting of two columns connected by a cross brace and their drives for the containers for the binder component and for the hardener component and with an opened protective cover,

Fig. 1B

a perspective view of the mobile device with one of two connected via a cross brace columns best- Fig. 1C a holder for the piston rods and their drives and with the protective cover closed, a perspective view of the mobile device with a storage container for the binder component and with three storage containers for the hardener component,

Fig. 1D

a side view of the mobile device according to Fig. 1C .

Fig. 1E

a perspective view of the mobile device with three reservoirs for the hardener component,

Fig. 1F

another perspective view of the mobile device,

Fig. 2

1 is a perspective view of a part of the device with a reservoir for the binder component and with three reservoirs for the hardener component,

Fig. 3

in a perspective view, as a base for the reservoir, trained for the binder component filling head with inlet and outlet openings, inlet openings for the components and outlet openings which are connected via supply channels with the inlet openings, the filling head a mixing device and a collecting container for receiving from overcrowding in the reservoirs for the hardener components originating assigned to the amounts of hardener components.

Fig. 4

a front view of the filling head with the outlet openings for the binder component and for the two hardener components,

Fig. 5

a top view of the filling head with the inlet openings for the two hardener components,

Fig. 6

2 is a schematic partially sectioned view of the filling head with attached storage containers for the binder component and for the two hardener components with the collecting container associated with the filling head,

Fig. 7

partly in view partly in a vertical section the storage container for the binder component and the two Fig. 8 In the case of the hardener components overfilled with the binder component, partly in view, partly in a vertical section, the storage container for the binder component and the two storage containers for the hardener components, after which the overfilling of the hardener Components has been pushed out of their storage containers, the quantity of overfilled hardener component pushed out of the storage container into the collecting container,

Fig. 9

a perspective view of the collection container,

Fig. 10

a vertical longitudinal section through the collecting container,

Fig. 11

a perspective view of the consisting of the stator and the rotor part mixing device with controllable feeds for a binder component and two hardener components connected to the mixing chamber storage containers, the stator at its end facing away from the Zuführun- for the components end a ring-shaped holder which is detachably connected to the stator part and firmly connected to the device;

Fig. 12

an enlarged view from above of the annular holder,

Fig. 13

an enlarged view from below of the annular holder,

Fig. 14

a vertical section according to line XIV-XIV in Fig. 12 .

Fig. 15

4 a view from below of the stator part of the mixing device, with the guide catches engaging in the holder,

Fig. 16

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

Fig. 17

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

Fig. 18

2 is a perspective view of the stators of the mixing devices with the feeders for the binder component and for the hardener component,

Fig. 19

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

Fig. 20

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

Fig. 21

a longitudinal section through the stator,

Fig. 22

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

Fig. 23

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

Fig. 24

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

This in Fig. 1 shown movable device 100 for producing a ready-made filler for the filling of surfaces, for example, vehicle bodies, from a binder component A and a hardener component B comprises a support plate 101 having a first drive device 102 and a holder 103 for a mixing device 1, which consists of a stator part 16 and a rotor part 19 ( Fig. 17 ), wherein between the two cylindrical parts 16 and 19, an annular gap is formed, which forms the mixing chamber 14. The holder 103 with its handle 103 a simultaneously receives a second drive device 250 for the mixing device 1 ( Fig. 1 . 1E and 1F ). On the support plate 101 struts 106, 107, which are connected to each other in the region of their upper free ends via a cross member 108, arranged. Between the vertical struts 106, 107 of the support plate 104 'formed filling head 104 is arranged ( Fig. 1A ). This plate-shaped Filling head 104 also serves as a support and base plate 104 'for receiving a reservoir 90 for the binder component A and in the in Fig. 1B . 1C and 2 shown embodiment, three reservoir 91, 92, 92 'for hardener components B, B1, B2. The storage containers 90, 91, 92, 92 'are non-slip and are stationarily positioned on the filling head 104. The outlet openings of the storage containers 90, 91, 92, 92 'correspond to the inlet openings 207, 208, 209, 209' of feed channels 204, 205, 206, 206 'in the filling head 104 (FIG. Fig. 2 ), these supply channels in turn being in connection with the inlet connection pieces 17a, 17b, 17'b, 17 "b of the mixing device 1 when the apparatus 100 is put into operation, thus corresponding to the outlet openings of the storage containers 90, 91, 92, 92 '. with the inlet openings 207, 208, 209, 209 'formed in the filling head 104 of the feed channels 204, 205, 206, 206', whose outlet openings 201, 202, 203, 203 'are designated ( Fig. 3 . 4 and 5 ).

The carrier plate 101 may also be formed as a housing 101 'and be movable as the carrier plate 101 ( Fig. 1A . 1B . 1C . 1D . 1E and 1F ). The four reservoirs 90, 91, 92, 92 'are non-slip and fixedly positioned on the filling head 104.

The outlet openings 201, 202, 203, 203 'of the feed channels 204, 205, 206, 206' are connected to the inlet connection pieces 17a, 17b, 17'b, 17 "b for the binder component A and the hardener components B, B1, B2 of the mixing device 1 or the introduction pipe 231, 232, 232 'for the hardener components B, B1, B2 of a replaceable against the mixing device 1 collecting container 230 for receiving and disposing of the predetermined amount by overfilling of hardener components B, B1, B2 in the storage containers 91, 92, 92 'for the hardener components B, B1, B2 in combination ( Fig. 3 . 8th and 10 ).

The reservoir 90, 91, 92, 92 'have in their interior spaces 90a, 91a, 92a, 92' the container contents acted upon plate-shaped piston 240, 241, 242, 242 'by means of motor-operated hydraulic cylinders or otherwise formed drive devices or by manual operation in the container longitudinal direction movable piston rods 243, 244, 245, 245 ', by means of which the contents of the reservoirs 90, 91, 92, 92' for the binder component A and for the hardener components B, B1, B2 in the mixing device 1 or sub-contents the storage container 91, 92, 92 'for the hardener components B, B1, B2 can be pressed into the collecting container 230 ( FIGS. 7 and 8 ).

The collecting container 230 consists of a cup-shaped cylindrical or other geometric cross-sectional shape and preferably closed on one side mold body 235, the wall 235c two juxtaposed, with the interior 235b of the molded body 235 in communication pipe socket 231, 232 for the supply of hardener components has, which are arranged and formed so that the collecting container 230 by means of the in the outlet openings 202, 203 of the filling head 104 for the hardener component B, B1, B2 insertable pipe socket 231, 232, 232 'on the filling head 104 can be plugged.

If hardener component is supplied to the filling head 104 from a plurality of storage containers, then the collecting container 230 has a corresponding number of pipe sockets 231, 232, 232 '.

By means of a motor-operated hydraulic cylinder or a plurality of motor-operated hydraulic cylinders 110, 111, 112, 112 'piston rods are operated whose free in the interior spaces 90a, 91 a, 92a, 92'a of the reservoir 90, 91, 92, 92' lying ends plate-shaped Piston 240 241, 242, 242 'wear, so that when operating the hydraulic cylinder 110, 111, 112, 112', the piston rods with the in the interiors of the reservoir 90, 91, 92, 92 'lying piston 240, 241, 242, 242' are moved in the piston rod longitudinal direction to press the contents of the reservoir 90, 91, 92, 92 'in the mixing device 1 ( Fig. 1 . 1A . 1B . 1C and 1D ). The operation of the motor of the drive device 102 for the actuation of the hydraulic cylinder, ie the switching on and off, is controlled by the actuating lever 115, so that the prepared filler can be removed in the respective desired amount to a spatula 120, wherein at the same time the one and switching off the drive 250 for the mixing device 1 takes place ( Fig. 1 and 2 ).

The Fig. 1A . 1B . 1C and 1D show more spatial representations of the device 100 Fig. 1 , Container receptacles for the binder component A and for the hardener components B, B1, B2 are provided on the filling head 104. Within the container receptacles profiled portions may be provided to ensure the stability of the reservoir 90, 91, 92, 92 '.

This in Fig. 1 The device 100 shown comprises a device 1 for mixing two components, namely the binder component A and the hardener components B, B1, B2. This mixing device 1, the individual components A, B, B1, B2 via the supply channels 204, 205, 206, 206 'of the filling head 104 are supplied.

To Fig. 1C and Fig. 2 the device 100 in addition to the reservoir 90 for the binder component A two reservoir 91, 92 for the hardener components B, B1 and beyond yet another reservoir 92 'for a further hardener component B2. This reservoir 92 'is arranged stably on the filling head 104 or the support plate 104'. Its content is analogous to the other reservoir 91, 92 housed during commissioning of the device from the container and passes through the filling head 104 in the mixing device 1, wherein the outlet opening of the reservoir 92 'with a supply channel 206' in the filling head 104 or in the support plate 104 'corresponds ( Fig. 3 . 4, 5 and 6 ). The pressing out of the hardener component B2 from the reservoir 92 'takes place by means of the drive device 270 via a hydraulically or motor-driven piston rod 112' with an end-mounted piston plate 242 ', wherein the piston rod 112' is designed as a rack, which is connected to the third drive device 270 is in functional active compound. For the actuation of the hydraulic cylinder or the piston rod 112 '( FIGS. 7 and 8 ), the third drive device 270 is arranged on the columnar strut 106 of the device 100 in a box-like container 285. The motor drive devices 102, 270 and the motor drive device 250 for the mixing device 1 are combined in a program control device or a control device 280 ( Fig. 1C ) in such a way that before the start of the mixing process, ie before supplying the binder component A and the hardener components B, B1 and the actuation of the hydraulic cylinder or the piston rod for the reservoir 90 for the binder component A and for the two supply containers 91, 92 for the hardener components B, B1, the drive device 270 for the third storage container 92 'for the hardener component B2 is set in operation independently of all other functions, so that before the actual mixing process, a flow of hardener Component B2 is carried out for about 1 second, wherein after the start of the rotational movement of the rotor part 19 of the mixing device 1, the third drive device 270 for the third reservoir 92 'for the hardener component B2 with a 1 second run for a further supply of hardener component B2 is operated, with complete emptying of the third reservoir 92 'for the hardener component B2 ei ne of the arranged in a box-like container 285 on the support plate 101 third drive device 270 driven rack reaches the lower portion of the third reservoir 92 'for the hardener component B2. The still running and moving downwards in the drawing, not shown rack lifts the box-like container 285, which mediate unilaterally a hinge is attached to the crossbar 108, such that the box-like container 285 is raised about 2 mm, via this movement of the box-like container 285, an optical signaling device 290 in operation and the entire device of the device 100 for replacing the empty third reservoir 92 'is set for the hardener component B2 against a full reservoir with the hardener component B2 out of service.

The molded body 235 of the collecting container 230 has on its pipe wall 231, 232, 232 'opposite wall surface 235 c a pipe socket 234, in the holder and centering of the collecting container 230, the handle or clamping device 103 of the device 100, the drive shaft of the drive device 250 for Mixing device 1 is engaging.

In the 11 to 24 shown 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. 11 and 17 ). For supplying the mixed material and also the hardener component B2 for the supply and the caster, the stator 16 has inlet openings or inlet connection 17a, 17b, 17'b, 17 "b, wherein through the inlet opening 17a, the binder component A and through the inlet openings 17b, 17'b, 17 "b, the hardener components B, B1, B2 are supplied. To illustrate the supply of the components, respective arrows are labeled A, B, B1, B2. 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 attachment and mounting of the mixing device 1 to the holder 103 of the base 101 of the device 100 is carried out according to Fig. 11 . 12 . 13 . 14, 15 and 16 By means of an annular holder 120. For this purpose, the stator 16 carries at its the inlet openings 17a, 17b, 17'b averted end 16a, the annular holder 120, the fastening apertures 121 and the bayonet-like releasably and rotatably connected to the stator 16, wherein the rotation 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 inlet openings 17b, 17'b, 17 "b for the hardener components B, B1 , B2 is achieved with the supplies for the hardener components B, B1, B2.

This annular support 120 has two opposing arcuate, slot-shaped openings 125, 135, of which each opening 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 region 125c, 135c of the narrower guide section 125b, 135b, while forming tongue-like edge regions 127, 137, has web-like wall sections 125d, 135d, so that groove-like recesses are formed whose depth corresponds approximately to the thickness of the angled leg 140a, 140'a of the L-shaped guide cam 140, 140 '( Fig. 11 ).

The annular support 120 is made of a plastic or other suitable material, for. B. a metal.

The annular support 120 is used as follows: On the support 103 of the support plate 101 of the device 100, 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 Blending device 1 are facing ( Fig. 11 ). After attachment of the annular holder 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 (FIG. Fig. 16 ). 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. 2 ). 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 100. When the mixing device 1 is rotated in the opposite direction, the bayonet lock is unlocked and the mixing device 1 can be removed from the device 100 in order to be able to exchange a used mixing device 1 with a new mixing device. By this type of mounting of the mixing device 1 on the device 100 is achieved that after the insertion of the mixing device 1 in the annular holder 120, that the rotation of the mixing device 1 by means of stops 122, 123, 122a, 123a at the ends of the slot-like openings 125, 135 of the annular holder 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 inlet openings 17b, 17'b, 17 "b for the hardener component B, B1, B2 with the supplies for the hardener components B, B1, B2 is reached ( Fig. 11 ).

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 fed into the mixing device 1 in such a way that they first connect to one another in the interior of the mixing chamber 14, after the hardening component B2 has already been supplied to the mixing chamber 14 by the forward flow with subsequent overrun. 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. Via the inlet openings 17b, 17'b, 17 "b, the hardener components B, B1, B2 are supplied to the mixing chamber 14, in which the hardener components are mixed with the binder component A. In this case, the supply of the components A, B and B1 in the following order: First, before the beginning of the actual mixing process for about one second as a flow, hardener component B2 from the reservoir 92 'of the mixing device 1, in which there is no binder component A and no further hardener components are located. After the start of rotation of the rotor part 19, a lag of the hardener component B2 is carried out for one second, while at the same time the required amounts of binder component A and hardener components B and B1 from the storage containers 90, 91,92 are supplied. The supply of the hardener component B2 is only for the lead and the caster.

A small amount of hardener component B is then fed to the mixing chamber 14. At the same time, the binder component A and the hardener component B1 are supplied, so that the binder component A passing into the mixing chamber meets the hardener component B or B2 already in the mixing chamber and already mixes with it. As a result of this procedure, binder component A flowing into the mixing chamber strikes the already existing hardener component B or B2 and is mixed therewith, so that no fraction of binder component which has no hardener component can escape , It is particularly advantageous that already hardener component B2 from the reservoir 92 'is in the mixing chamber 14 through the intended flow, so that introduced binder component A strikes the hardener component B2 as it flows into the mixing chamber 14. 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, 92, 92 'takes place for the hardener components and for the binder component ( Fig. 6 ). Furthermore, the stator part 16 of the mixing device 1 can also have only one feed for the hardener component. In this case, a supply of a small amount of hardener component B2 as flow and caster takes place first via the controller, after which the supply takes place a small amount of hardener components in the mixing chamber 14, whereupon then the supply of the binder component and that takes place together with other hardener components. The reservoir 92 'is removed only hardener component for the flow and the caster, so that before the supply of the binder component already a very small amount of hardener component is present in the mixing chamber 14, so that binder component at the inlet into the Mixing chamber 14 already impinges on it with introduced by the precursor hardener component and to create a sliding transition, there is still the supply of a small amount of hardener component, whereupon the further supply of hardener component and binder component takes place. It is also possible, instead of removing hardener components from two storage containers, to remove for the flow and the after-run hardener component only from one of the two reservoir for the hardener component. It is more advantageous, however, if two storage containers for the hardener component and a separate storage container with hardener component for the supply and the caster is provided.

With the aid of preferably upstream metering devices, the components to be mixed are continuously conveyed through the mixing chamber 14 to a dispensing opening 21 arranged on the stator part 16, which is arranged in the flow direction behind the inlet openings 17a, 17b and 17'b and after the mixing chamber 14. 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 a pre-run of the hardener component has already taken place and part of the following binder component A has mixed with the hardener component B and the two other components A and B are fed to the mixing chamber. Binder component A and hardener component B, B1 fed to one another in the mixing chamber 14 are then mixed with one another. These two components A and B, 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. Overall, five first mixing tooth planes 10 and four 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, causes a bearing of the rotor part 19 in the stator part 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. 20 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. 21 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 five 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. 5 ). On the outer periphery of the stator 16 plate-shaped projections 18 are formed, wherein a total of three plate-shaped projections 18 at the height of the discharge opening 21 and the end of the stator 16 are provided. The inlet opening 17a or 17b is at the height of a support bearing surface 12 in the mixing chamber 14, wherein the support bearing surface 12 a axial bearing of the - not shown here - rotor part 19 forms. The stator part 16 is open at the rear end, which is opposite to the inlet openings 17a, 17b, 17'b, 17 "b, so that the rotor part 19 can be joined through this opening in the stator part 16. In the region of the opening The stator part 16 has a cavity 28, designed as a section, for receiving the mixture to be moved in. In order to allow the mixture to escape, exit openings 13 are provided in the wall, which are arranged twice on the circumference.

In Fig. 22 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. In this case, the inlet openings 17b, 17'b, 17 "b are formed spaced apart from one another and are fed via feed lines and metering devices 91, 92 which are also separate from one another.

In Fig. 23 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 48 mixing teeth 11 are arranged on the rotor part 19 with a total of four mixing tooth planes. In addition, there are four further mixing teeth 24 at the upper part of the rotor part 19 for the premixing of the mixed material. These go into the projections 22, which are also four times arranged on a type extension of the rotor member 19.

Fig. 24 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 piston rods 110, 111, 112, 112 'with the piston plates 240, 241, 242, 242' by hand in the open reservoir 90, 91, 92 are used and as soon as the piston plates below the opening edges the reservoir 90, 91, 92, 92 'come to rest, the hydraulic drive device 270 for actuating the piston rod 245' for the reservoir 92 'for the hardener component B2 is put into operation so that the flow for the hardener Component B2 can be initiated. If the flow of the hardener component B2 is initiated, then the motor 102 for the hydraulics for actuating the piston rods 110, 111, 112 for the reservoir 90, 91, 91 for the binder component A and the hardener component B, B1 in Operation set, wherein at the same time the wake for the hardener component is initiated; 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.

The mixing device 1 is inserted with its pipe socket-like insertion openings 17a, 17b, 17'b, 17 "b into the outlet openings 201, 202, 203, 203 'of the filling head 104 when the device 1 is put into operation ( Fig. 1E and 11 ). Here, the holder 103 is opened, the mixing device 1 with its insertion openings 17a, 17b, 17'b, 17 "b inserted into the outlet openings 201, 202, 203, 203 'of the filling head 104 and the holder 103 is closed, at the same time a compound of Rotor part 19 is provided with the provided on the holder 103 drive motor 250 ( Fig. 1 E) ,

To facilitate the replacement of the reservoir and to achieve a leveling of the filling levels in the reservoirs, as they are different between the binder component A and the hardener components B, B1, is to eliminate the overfilling of the reservoir 91, 92 for the Hardener component B, B1 of the collecting container 230 provided at the beginning of a tapping of the components A, B, B1 their storage containers 90, 91, 92 is used instead of the mixing device 1 in the device 100.

The molded body 235 of the collecting container 230 is made of a plastic or a suitable material.

• Nach dem Einsetzen eines neuen Vorratsbehälters 90 für die Binder-Komponente A und der neuen Vorratsbehälter 91, 92 für die Härter-Komponenten B, B1 in das Gerät 100 (Fig. 6) wird in die Halterung 103 der Auffangbehälter 230 eingesetzt (Fig. 1E), wobei seine Rohrstutzen 231, 232 in die Austrittsöffnungen 202, 203 der Zuführungskanäle 205, 206 des Abfüllkopfes 104 eingesteckt werden, über die die Binder-Komponenten B, B1 zugeführt werden (Fig. 3 und 6). Nach dem Einsetzen des Auffangbehälters 230 in den Abfüllkopf 104 wird ein mit den Kolbenstangen 110, 111, 112 der Vorratsbehälter 90, 91, 92 für die Binder-Komponente A und die Härter-Komponente B, B1 verbundener Handgriff 260 in Pfeilrichtung X d.h. in Richtung zum Standfuß 101 des Gerätes 100 mit aller Kraft gezogen (Fig. 1) , so dass die Kolbenstangen 110, 111, 112 in Pfeilrichtung x1, x2, x3 bewegt werden (Fig. 7), bis die plattenförmigen Kolben 240, 241, 242 die Oberflächen 0B, 0B1, 0B2 der Komponenten A, B, B1 der Vorratsbehälter 90, 91, 92 beaufschlagen. Der Zug an dem Handgriff 260 wird dann erhöht mit der Folge, dass die Inhalte der Vorratsbehälter 91, 92 für die Härter-Komponenten B, B1 in Pfeilrichtung x4, x5 soweit gedrückt werden, bis die Überfüllung in den beiden Vorratsbehältern 91, 92 für die Härter-Komponenten B, B1 aus den Vorratsbehältern 91, 92 herausgedrückt und in den Auffangbehälter 230 gedrückt sind (Fig. 8). Damit ist eine Egalisierung der Füllhöhen in den drei Vorratsbehältern 90, 91, 92 erreicht, d.h. die Füllhöhen in den Vorratsbehältern 91, 92 haben dann die Füllhöhe im Vorratsbehälter 90 erreicht, denn aufgrund der höheren Viskosität der Binder-Komponente A gegenüber der Viskosität der Härter-Komponente B, B1 wird die Binder-Komponente A während des Herausdrückens der die Überprüfung und ausmachenden Menge an Härter-Komponente B, B1 aus ihren Vorratsbehältern 91, 92 nicht aus ihrem Vorratsbehälter 90 gedrückt.

The handling of the collection container 230 is as follows:

• After inserting a new supply container 90 for the binder component A and the new reservoir 91, 92 for the hardener components B, B1 in the device 100 ( Fig. 6 ), the collecting container 230 is inserted into the holder 103 ( Fig. 1E ), wherein its pipe sockets 231, 232 are inserted into the outlet openings 202, 203 of the feed channels 205, 206 of the filling head 104, via which the binder components B, B1 are supplied ( Fig. 3 and 6 ). After insertion of the collecting container 230 into the filling head 104, a handle 260 connected to the piston rods 110, 111, 112 of the storage containers 90, 91, 92 for the binder component A and the hardener component B, B1 is moved in the direction of the arrow X ie in the direction to the base 101 of the device 100 pulled with all its strength ( Fig. 1 ), so that the piston rods 110, 111, 112 are moved in the direction of arrow x1, x2, x3 ( Fig. 7 ) until the plate-shaped pistons 240, 241, 242 act on the surfaces 0B, 0B1, 0B2 of the components A, B, B1 of the reservoirs 90, 91, 92. The pull on the handle 260 is then increased, with the result that the contents of the reservoir 91, 92 for the hardener components B, B1 are pressed in the direction of arrow x4, x5 until the overfilling in the two storage containers 91, 92 for the Hardener components B, B1 are pushed out of the storage containers 91, 92 and pressed into the collecting container 230 ( Fig. 8 ). For a leveling of the filling heights in the three storage containers 90, 91, 92 is reached, ie the filling levels in the reservoirs 91, 92 have then reached the filling height in the reservoir 90, because due to the higher viscosity of the binder component A compared to the viscosity the hardener component B, B1, the binder component A is not pressed out of its reservoir 90 during the pushing out of the checking and ausmachen amount of hardener component B, B1 from their storage containers 91, 92.

Are the filling heights in all three storage containers 90, 91, 92 equalized ( Fig. 8 ). Then, the collecting container 230 filled with the amount of hardener component B, B1 which constitutes the overfilling is withdrawn from the filling head 104 and disposed of (FIG. Fig. 8 ). After removal of the collecting container 230 from the filling head 104, the mixing device 1 is inserted onto it, in which the pipe socket-like inlet openings 17a, 17b, 17'b of the mixing device 1 in the outlet openings 201, 202, 203 of the feed channels 204, 205, 206 in the Filling head 104 are inserted ( Fig. 7 ). The arrangement of the outlet openings 202, 203 for the hardener component B, B1 in the filling head 104 and the arrangement of the pipe socket-like inlet openings 17b, 17'b of the mixing device 1 and the pipe socket 231, 232 of the collecting container 230 is such that both the pipe socket-like Inlet openings 17b, 17'b of the mixing device 1 and the pipe socket 231, 231 of the collecting container 230 in the outlet openings 202, 203 for the hardener component B, B1 in the filling head 104 can be inserted. Furthermore, the arrangement of the outlet opening 201 for the binder component A in the filling head 104 is such that the pipe socket-like inlet opening 17a of the mixing device 1 for the binder component A can correspond to the outlet opening 201 for the binder component A in the filling head 104 ( Fig. 3 ).

Using the device 100 according to the invention with a mixing device 1 and a collecting container 230 is a ready-to-use filler for filling surfaces of, for example, vehicle bodies by mixing a binder component A with hardener components B, B1, B2 to a pasty or liquid mix in the Made way that before the start of tapping a mixed amount of binder component A and hardener component B, B1 to equalize the surface height of the binder component A in the reservoir 90 and the hardener components B, B1 in the two storage containers 91, 92, the filling height of the hardener components B. , B1 in the two storage containers 91, 92 is set higher in relation to the filling level of the binder component A in the reservoir 90, then the piston 240, 241, 242 arranged in the inner spaces 90a, 91a, 92a at their free ends by manual operation carrying piston rods 110, 111, 112 in the storage containers 90, 91, 92 by manual operation against the container contents with simultaneous loading of the binder component A in the reservoir 90 and the hardener components B, B1 in the reservoir 91, 92 moves and overfilled Amount of hardener components B, B1 from the storage containers 91, 92 in the collecting container 230 used in the device 1 pushes out until the same filling levels of binder component A and hardener components B, B1 are reached, whereupon the collecting container 230 is replaced by the mixing device 1 and then all piston rods 110, 111, 112 are actuated by means of motor or hydraulic force to those for the Preparation of the mixture required amounts of binder component A and hardener component B, B1 from the storage containers 90, 91, 92 in the mixing device 1 for mixing the components A, B, B1 to press, which is incorporated in the process flow with or can be installed, that prior to the beginning of the actual mixing process hardener component B2 an additional reservoir 92 'removed and fed as a flow and as a wake of the mixing chamber 14 of the mixing device 1.

The frame of the device has an openable, transparent protective cover 200 for covering the reservoirs 90, 91, 92, 92 ', wherein a circuit breaker is provided in operative connection with the protective cover 200 and the device 100, which turns off the device when the protective cover open, made of a crystal clear plastic or another suitable material and is door-like ( Fig. 1A ).

Furthermore, receptacles 300, 301 for receiving spent and new mixing devices 1 are provided on the support frame of the device 100 on the front and / or rear side ( Fig. 1C and 1D ).

In addition to the optical signal device 290, a further optical signal device 350 connected to a power source, such as a signal lamp 351 emitting a white light or colored light and / or an acoustic signal device 360, such as a signal horn or siren 361, can be arranged visibly on the support frame of the device 100 , Wherein both signal devices 350, 360 are activated at a startup of the device 100 for a predetermined period, preferably for a period of two or three minutes, by lighting up and / or signal delivery. Even with a blank indication for the reservoir 92 'for the hardener component B2, the signaling device 360 can be activated ( Fig. 1 ).

The device 100 receiving support plate 101 is movable and is provided for this purpose with rollers 405 ( Fig. 1A . 1B . 1C ). As far as the drive means for the piston rods for the reservoir 90, 91, 92, 92 'are hydraulically actuated, on the support plate 101, a compressor 400, preferably a mini-compressor, arranged by means of which for the actuation of the hydraulic cylinders 110, 111, 112, 112 ', which are connected to the piston rods, required compressed air is generated. The compressor 400 has a container 401, which is preferably filled with at least 20 liters of air, which is under a pressure of at least 20 bar.

As far as electromotive drive devices for the piston rods of the reservoir 90, 91, 92, 92 'and for the actuation of the rotor part 19 of the Mixing device 1 and for the operation of the drive device 270 for the rack for switching on and off of the device 100 are provided on the support plate 101, a power source 410, z. B. in the form of a rechargeable battery, preferably one or more motor vehicle batteries arranged, which may be connected to a transformer.

The support plate 101 may also be formed as a housing 101 '. On the support plate or in the housing, a compressed air tank 401 with a capacity of 25 liters or 50 liters or even for larger amounts of compressed air and / or a power source 410 are arranged ( Fig. 1 . 1A . 1B . 1C . 1D . 1E and 1F ). As the power source 410, a rechargeable battery is preferably used for a 24 volt operation. The compressed air tank 401 may also be connected to a compressor 400 to generate the required compressed air. Due to the possibility of storing compressed air in the compressed air tank 401, compressed air is available for the operation of the device 100 at all times.

In order to be able to move the device 100, the carrier plate 101 or the housing 101 'is provided with rollers 405. For the method of the device by hand, the support plate 101 or the housing 101 'or the device 100 itself is provided with a rod-like handle 406 ( Fig. 1A ). For the motorized method of the device 100, a drive motor 408 is provided on the carrier plate 101 or on the housing 101 ', which is fed by the current source 401 ( Fig. 1 ). About not shown in the drawing on-off switch and speed control device, the method of the device is controlled.

Claims (18)

1. A device (100) for manufacturing a ready-to-use body filler for the trowel application to surfaces, in particular to vehicle bodies, by mixing at least two components, in particular a binder component (A) and a hardener component (B), by means of a mixing apparatus (1), which is composed of a hollow-cylindrical-type stator part (16) and a rotor part (19), which is rotatably received therein concentrically about a longitudinal axis, and a ring gap, which forms the mixing chamber (14) and is configured between the rotor part (19) and the stator part (16), into a paste-like or liquid mixture, wherein the mixing apparatus (1) is provided with at least one inlet nozzle (17a) for supplying the binder component (A) and at least one inlet nozzle (17b, 17'b, 17"b) for supplying the hardener component (B) as well as with a discharge opening (21) for discharging the mixture, wherein the mixing chamber is formed between the inlet nozzle (17b, 17'b, 17"b) and the discharge opening (21), within which mixing chamber the components (A, B) work together to mix,
   characterised in that
   the device (100) comprises a mounting plate (101) having two perpendicularly standing, pillar-like trusses (106, 107) connected in an upper region by a cross brace (108), between said trusses being arranged a carrier plate (104') forming a filler head (104), said carrier plate having fasteners and receptacles for a storage container (90) for the binder component (A) and for three storage containers (91, 92, 92') for the hardener component (B, B1, B2) that are conducted into the storage containers (90, 91, 92, 92') and are arranged with hydraulic cylinders or piston rods (243, 244, 245, 245') connected to alternative motor-driven drive devices (102, 270), wherein an installation and guide element for the piston rods are provided above the storage containers (90, 91, 92, 92') and a first drive device (102) for actuating the hydraulic cylinder or the piston rods for the storage container (90) for the binder component (A) and for two storage containers (91, 92) of the three storage containers (91, 92, 92') for the hardener component (B, B1, B2) and a second drive device (250) for the mixing apparatus (1) as well as a third drive device (270) for the actuation of the hydraulic cylinder or of the piston rod (112), which is preferably configured as a toothed rack, for the third storage container (92') for the hardener component (B2), wherein the motor-driven drive devices (102, 250, 270) are introduced into a program control network or a control device (280) in such a manner that prior to the beginning of the mixing process and the actuation of the hydraulic cylinders or the piston rods for the storage container (90) for the binder component (A) and for the two storage containers (91, 92) for the hardener components (B, B1), the third drive device (270) for the third storage container (92') for the hardener component (B2) is put into operation independently from all other functions in such a manner that prior to the beginning of actual mixing process, an advance lead of hardener component (B2) occurs of approximately 1 second, wherein subsequent to the beginning of rotation movement of the rotor part (19) of the mixing apparatus (1) and the supply of the binder component (A) and the hardener components (B, B1), the third drive device (270) for the third storage container (92') for the hardener component (B2) is operated with a lag of 1 second for an additional supply of hardener component (B2), wherein upon complete emptying of the third storage container (92') for the hardener component (B2) and a toothed rack driven by a third drive device (270) arranged in a box-like container (285) on the cross brace (108) of the two trusses (106, 107) as piston rod (245') reached the lower region of the third storage container (92') for the hardener component (B2), upon an additional downward movement of the box-like container (285), that is attached on one side to the longitudinal truss (106) by means of an articulation, is raised in such a manner that the box-like container (285) is raised approximately 2 mm, wherein by means of this movement of the box-like container (285), an optical signal apparatus (290) is brought into operation and the entire arrangement of device for exchanging the empty third storage container (92') for the hardener component (B2) with a full storage container is taken out of operation, wherein the mounting plate (101) is configured to be mobile and furthermore has a compressor (400) for the actuation of the hydraulically-operated drive devices for the piston rods for the storage containers (90, 91, 92, 92') or for the actuation of the electromotive drive devices for the piston rods for the storage containers (90, 91, 92, 92') and moreover has a power source (410) for the actuation of the mixing apparatus (1) and wherein the device is configured as a wall-mounted or floor-mounted device or alternatively as moveably hand- or motor-driven, moreover characterised in that a collection container (230) is present that consists of moulded body (235) having a cup-like cylindrical or another geometrically-shaped cross-section shape, the wall (235c) of said moulded body having two tubular trusses (231, 232), which are arranged lying one beside the other and in connection with the interior chamber (235b) of the moulded body (235), said tubular trusses being arranged and configured in such a manner that the collection container (230) can be attached onto the filler head (104) by means of tubular trusses (231, 232) that can be inserted into the outlet openings (202, 203) of the filler head (104) for the hardener components (B, B1),
   that the moulded body (235) of the collection container (230) has a tubular truss (234) in its wall surface (235c) opposite the tubular trusses (231, 232, 232'), with which tubular truss, for the purposes of handling device or clamping device (103) of the device (100), the drive shaft of the drive for the mixing apparatus (1) engages, that the moulded body (235) of the collection container (230) consists of a plastic,
   furthermore characterised in that the respectively outward-lying wall region (125c; 135c) of a narrower guiding section (125b; 135b) has, with the formation of tongue-like edge regions (127, 137), web-like wall sections (125d; 135d) with groove-like recesses the depth of which approximately corresponds to thickness of the angled bracket (140a; 140'a) of the "L"-shaped guiding cam (140, 140'), wherein the number of the "L"-shaped guiding cams is greater than two "L"-shaped guiding cams can be.
2. The device as specified in claim 1,
   characterised in that
   the mounting plate (101) of the device (100) has a filler head (104) configured as a carrier plate for receiving the storage container (90) for the binder component (A) and the three storage containers (91, 92, 92') for the hardener components (B, B1, B2), wherein the four storage containers (90, 91, 92, 92') are positioned on the filler head (104) in a slip-proof and fixed manner and, with their outlet openings correspond with inlet openings (207, 208, 209, 209') of supply canals (204, 205, 206, 206') in the filler head (104) the outlet openings (201, 202, 203, 203') of which can be brought into operative interaction with the inlet nozzles (17a, 17b, 17'b, 17"b) for the binder component (A) and the hardener components (B, B1, B2) of the mixing apparatus (1) or can be brought into operative interaction with the inlet nozzles (231, 232, 232') for the hardener components (B, B1, B2) of a collection container (230) that can be exchanged in the mixing apparatus (1) for receiving and removing the pre-determined amount of hardener components (B, B1, B2), owing to overfilling, into the storage containers (91, 92, 92') for the hardener components (B, B1, B2), and wherein the storage containers (91, 91, 92, 92') have in their interior chambers (90, 91 a, 92a, 92'a) the plate-shaped pistons (240, 241, 242, 242') that strike the contents of the containers with motor-actuated hydraulic cylinders or different configured drive devices or by piston rods (110, 111, 112, 112a) that can be moved in the longitudinal direction of the container by means of hand-operation, by means of which the contents of the storage containers (90, 91, 92, 92') for the binder component (A) and for the hardener components (B, B1, B2) can be pressed into the mixing apparatus (1) or by means of which partial contents of the storage containers (91, 92, 92') for the hardener components (B, B1, B2) can be pressed into the collection container (230).
3. The device as specified in one of the claims 1 or 2,
   characterised in that
   the piston rods (110, 111, 112) with their platform-like pistons (240, 241, 242) are connected for hand-actuation by means of a handle (260).
4. The device as specified in any one of the preceding claims 1 to 3,
   characterised in that
   the mixing apparatus (1) comprises a hollow cylinder-like stator part (16) and an electromotively driven rotor part (19) that is rotatable about a longitudinal axis (20) and is received therein, and the mixing chamber (14) is configured in an annular-gap manner between the stator part (16) and the rotor part (19), wherein a plurality of first mixing teeth (23), which are integrally moulded on the stator part (16) extend radially inward into the mixing chamber (14) and a plurality of second mixing teeth (24), which are integrally moulded on the rotor part (19) extend radially outward into the mixing chamber (14), in order to bring about a mixing of the components (A, B) by moving the mixing teeth (23, 24) against one another by means of a rotation motion of the rotor part (19) in the stator part (16), wherein the stator part (16) has three inlet openings (17b, 17'b, 17"b) connected to the mixing chamber (14) for the hardener components (B, B1, B2).
5. The device as specified in any one of the preceding claims 1 to 4,
   characterised in that
   the stator part (16) on its end (16a) that is directed away from the inlet openings (17a, 17b, 17'b, 17"b) carried an annular fastener (120) that has fastening openings (121) and that is furthermore detachably and rotatably connected to the stator part (16) in a bayonet-fitting manner, wherein the rotatability is limited by means of stops (122, 123; 122a, 123a) in such a manner that an inlet-opening (17a) fit for the binder component (A) is achieved with the feeding for the binder component (A) and, at the same time, an inlet-opening (17b, 17b', 17b") fit for the hardener components (B, B1, B2) with the feeding for the hardener components is achieved, wherein the annular fastener (120) consists of a plastic or metal and has two arced, slit-shaped openings (125; 135) that are positioned side by side, parallel to the peripheral edge of the fastener (120), from which each slit-shaped opening (125; 135) has two guiding sections (125a, 125b; 135a, 135b) having different widths from which the respective wider guiding section (125a; 135a) is configured to introduce an "L"-shaped guiding cam (140; 140') that is integrally moulded on the lower circumferential edge (16a) of the stator part (16), wherein the width of the wider guiding section (125a; 135a) corresponds to the length of the free, angled guide of the angled bracket (140a; 140'a) of the guiding cam (140, 140') and from which the respectively narrower guiding section (125b; 135b) has a width that corresponds to the thickness of the bracket (140b; 140'b) of the "L"-shaped guiding cam (140; 140'), which bracket is integrally moulded on the lower circumferential edge (16a) of the stator part (16) and runs parallel to the longitudinal direction of the mixing apparatus (1).
6. The device as specified in any one of the preceding claims 1 to 5,
   characterised in that
   the respective externally-positioned wall region (125c; 135c) of a narrower guiding section (125b; 135b) has, under the formation of tongue-like edge regions (127, 137), web-like wall sections (125d; 135d) with grove-like recesses the depth of which corresponds approximately to the thickness of angled bracket (140a; 140'a) of the "L"-shaped guiding cam (140; 140'), wherein the number of the "L"-shaped guiding grooves can be greater than two "L"-shaped guiding cams (140; 140').
7. The device as specified in any one of the preceding claims 1 to 5,
   characterised in that
   the first mixing teeth (23) are arranged on at least a first mixing-teeth plane (10) and the second mixing teeth (24) are arranged on at least one second mixing-teeth plane (11), and the mixing-teeth planes (10, 11) are axially staggered in a step-like manner with regard to one another in the direction of the longitudinal axis (20) in such a manner that the second mixing teeth (24) of the rotor part (19) radially turn in the respective intermediate spaces of the first mixing teeth (23) of the stator part (16), wherein the mixing teeth (23, 24) each have front-face surfaces (30, 31) that face one another in the axial direction in order position these against one another upon an axially-acting force between the stator part (16) and the rotor part (19).
8. The device as specified in claim 7,
   characterised in that
   with respect to a plane arranged normally to an axis of rotation, the front-face surfaces (30, 31) are inclined under an angle (α) in such a manner that the front-face surfaces (30, 31) slide against one another during the mixing process without material being carried from the mixing teeth (23, 24) and reaching the mixture.
9. The device as specified in any one of the preceding claims 1 to 8,
   characterised in that
   the rotor part (19) has projections (22) on its end side, which projections protrude into the inlet opening (17a) for the feeding of the binder component (A) and rotate along with the rotation of the rotor part (19) in order to reduce the thixotropy of the binder component (A) already in the feed canal of the inlet opening (17a), wherein the rotor part (19) has an open, hollow cylinder-like recess (29) on one end in which a core can be inserted in a geometrically-fitting manner by means of which the rotor part (19) can be driven.
10. The device as specified in claim 9,
    characterised in that
    the recess (29) has locking ribs (25) that run radially inward from the body of the rotor part (19), said ribs locking into corresponding recesses in the core in order to transfer the drive torque form the rotatorily driven core to the rotor part (19).
11. The device as specified in any one of the preceding claims 1 to 10,
    characterised in that
    the rotor part (19) has sealing lips (26) in order to seal the mixing chamber (14) between the rotor part (19) and the stator part (16) and to furthermore prevent a leakage of mixture, wherein the rotor part (19) has a cylindrical bearing section (27) in order to create a slide-bearing arrangement and wherein a hollow chamber (28) is formed between the sealing lips (26) in order to make it possible to capture mixture passing through the sealing lips (26).
12. The device as specified in any one of the preceding claims 1 to 11,
    characterised in that
    the stator part (16) has least one plate-shaped recess (18) on the external circumference, wherein at least one plate-shaped recess (18) comprises a half-moon-shaped locking contour (15) with which a pin element engages upon insertion of the mixing apparatus (1) in order to ensure the radial position of the discharge opening (21) in the stator part (16).
13. The device as specified in any one of the preceding claims 1 to 12,
    characterised in that
    the stator part (16) comprises a supporting-bearing surface (12) on which the rotor part (19), with the mixing teeth (24) integrally moulded thereon rests on the front face and glides in order to create an axial glide-bearing arrangement.
14. The device as specified in any one of the preceding claims 1 to 12,
    characterised in that
    the stator part (16) has at least one circumferential outlet opening (13) in the cylindrical section of the hollow chamber (28) in order to prevent mixture from leaving from the cylindrical bearing section (27), and, furthermore, that at least the stator part (16) is formed from a transparent material, wherein the transparent material if formed from the group of plastics comprising a polycarbonate (PC), a polymethyl methacrylate (PMMA) and/or a styrol/acrylonitrile (SAN).
15. The device as specified in any one of the preceding claims 1 to 14,
    characterised by
    a supporting frame, wherein the supporting frame has a transparent protective covering (200), which is to be opened, for covering the storage containers (90, 91, 92, 92'), wherein a circuit breaker is provided that operatively interacts with the protective covering (200) and the device (100), said circuit breaker switching the device (100) off if the protective covering is opened, said protective covering consisting of a crystal-clear plastic or another suitable material and furthermore being configured to be door-like.
16. The device as specified in any one of the preceding claims 1 to 15,
    characterised by
    a supporting frame, wherein the supporting frame of the device (100) has receptacles (300, 301) on the front side and/or on the rear side for receiving used and new mixing devices (1).
17. The device as specified in any one of the preceding claims 1 to 16,
    characterised by
    a supporting frame, wherein the supporting frame of the device (100) visibly has an optical signalling device (350), which is connected to a power source, such as a signal lamp (351) that transmits a white light or a coloured light and/or an acoustic signal arrangement (360) with which is associated a signal horn or sirens (361), wherein both of the signal devices (350, 360) are, during operation of the device (100) are activated by lighting up and/or signal delivery for a pre-determined time period, preferably for a time period of two or three minutes, and wherein upon an empty indication for the storage container (92') for the hardener component (B2), the signal arrangement will be activated.
18. The device as specified in any one of the preceding claims 1 to 17,
    characterised in that
    on the mounting plate (101) or in the housing (101'), a container (401) receiving compressed air and/or a power source (410), preferably a rechargeable battery, for a 24-volt operation and/or a drive motor (408) are arranged for the operation of the device.

Images