EP0269799B1 - Mixing device - Google Patents

Mixing device Download PDF

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Publication number
EP0269799B1
EP0269799B1 EP87113541A EP87113541A EP0269799B1 EP 0269799 B1 EP0269799 B1 EP 0269799B1 EP 87113541 A EP87113541 A EP 87113541A EP 87113541 A EP87113541 A EP 87113541A EP 0269799 B1 EP0269799 B1 EP 0269799B1
Authority
EP
European Patent Office
Prior art keywords
mixing
vessel
drive gear
container
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87113541A
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German (de)
French (fr)
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EP0269799A1 (en
Inventor
Friedrich Walter Dr.Verstorben Herfeld
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Dr Herfeld GmbH and Co KG
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Dr Herfeld GmbH and Co KG
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Publication of EP0269799A1 publication Critical patent/EP0269799A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/808Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00Other mixers; Mixing plants; Combinations of mixers
    • B01F33/35Mixing after turning the mixing vessel upside down
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/30Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32Driving arrangements
    • B01F35/321Disposition of the drive
    • B01F35/3213Disposition of the drive at the lower side of the axis, e.g. driving the stirrer from the bottom of a receptacle

Definitions

  • the invention relates to a mixing device according to the preamble of claim 1.
  • a mixing device of the required type is known for example from DE-C-21 10 047.
  • the agitator is located in the second container part which is pivotably mounted on the stationary holder, as a result of which the transportable first container part, after it has been brought under the second container part, by means of a relatively small vertical relative movement between the two container parts with the second container part can be connected.
  • the mixing container and the agitator are then pivoted from the approximately vertical starting position by 180 ° into a vertical mixing position in which the second container part forms the bottom of the mixing container, it is achieved that the mixer is located close to the bottom of the mixing container, which also means difficult to mix goods a complete mixing is guaranteed.
  • this known mixing device is the drive motor arranged for the agitator in the axial extension of the agitator on the outside of the second container part, so that the drive motor is pivoted together with the second container part at the transition from the starting position to the mixing position (and vice versa).
  • the material contained in the mixing container assumes an upper material level running at least approximately parallel to the upper edge of the first container part after the mixing process and pivoting the mixing container back into the vertical starting position.
  • the invention is therefore based on the object of developing a mixing device of the type required in the preamble of claim 1 in such a way that, with a relatively simple structural design of the mixing device itself, the finished mixture itself after the mixing container returns to its stable starting position (in which the first container part from second container part is uncoupled) in the first container part assumes an upper good level which is approximately parallel to the upper edge of this first container part.
  • a swivel drive device designed for the mixing container is provided such that the mixing container swings back Movement from the mixing position into the stable starting position is first pivoted by an adjustable angular dimension beyond this starting position, namely into a level compensation position, and only then is the mixing container pivoted back into the stable starting position at this level compensation position.
  • the mixing container has been swiveled back from the vertical mixing position by only 180 ° to the starting position after the mixing process has ended, then the mixing material within the mixing container is still bended at an angle of repose due to the good properties, i.e. the upper material level forms an angle to the upper edge of the Mixing container.
  • the mixing container according to the invention when it swivels back from the mixing position initially over the vertical starting position, ie over 180 ° into the level compensation position, an opposite bulk movement of the bulk material takes place within the mixing container, so that after pivoting back out of the level Equalization position in the vertical, stable equilibrium position, the mix has an upper approximately parallel to the upper edge of the first container part Takes good level.
  • the size of the angular dimension by which the swiveling movement goes beyond 180 ° depends on the flow properties (slope angle) of the bulk material, that is to say a relatively small angular dimension is required for easily flowing material, while for poorly flowing mix material the angular dimension must be correspondingly larger in order to bring about the desired level compensation.
  • FIG. 1 The general structure of this mixing device according to the invention is first described with reference to FIG. 1, but it is emphasized that the same device parts with the same reference numerals in all other figures are provided, so that the description made with reference to FIG. 1 also refers to the remaining FIGS., in particular FIGS. 2 to 5.
  • the mixing device illustrated in FIG. 1 contains a mixing container 1, which consists of two bowl-shaped container parts, namely the first container part 2 and the second container part 3.
  • the two container parts 2 and 3 can be connected to one another in a manner known per se and therefore not shown in detail.
  • the first container part 2 is designed to be transportable with the aid of a chassis 4 or the like and, in the exemplary embodiment shown, has a floor outlet 2a.
  • the second container part 3 is rotatably mounted on a frame-like, fixed holder 5 by means of a horizontal support axis 6 in a manner as will be explained in more detail below.
  • An agitator 7 is arranged in the second container part 3, which can also be carried out in a manner known per se and is driven by a drive motor 9 via an agitator shaft 8, which is flanged to the bottom wall 3a of this second container part 3.
  • the agitator shaft 8 is vertical in the starting position and mixing position of the mixing container 1, corresponding to the vertical axis 1 a of the mixing container 1.
  • the mixing device contains a swivel drive device 10 for the mixing container 1.
  • the mixing container 1 can be moved out of its vertical, stable starting position shown in particular in FIG. 3, in which the second container part 3 forms the lid of the mixing container 1 and with the first container part 2 is connected (coupled together) by 180 ° about its horizontal support axis 6 into its vertical, stable mixing position, which is illustrated in FIG. 4 and in which the second container part 3 forms the bottom of the mixing container 1.
  • the mixing container 1 is then pivoted back into its vertical, stable starting position according to FIG. 3, so that the first container part 2 can be uncoupled from the second container part 3 by this first container part 2 to be transported on the chassis 4 with the ready-mixed goods.
  • the mixing container 1 is turned off the vertical mixing position (FIG. 4) is not simply pivoted back again by 180 °, but the swivel drive device 10 is designed such that the mixing container 1 when pivoting back into its stable starting position (FIG. 3) initially into an adjustable angular dimension (cf. Angle ⁇ in Fig. 5) is pivoted beyond this initial position level compensation position, as illustrated in Fig. 5.
  • This means that the mixing container 1 is pivoted from the vertical mixing position (FIG. 4) by 180 ° plus the angular dimension ⁇ into the level compensation position according to FIG. 5. Only then is the mixing container 1 pivoted back again by the angular dimension ⁇ into the stable starting position according to FIG. 3, in which the mixing container 1 is thus oriented vertically.
  • the great advantage of the successive swiveling sections when swiveling the mixing container 1 back from the mixing position into its vertical, stable starting position is as follows: when the mixing container 1 after the mixing process has ended from its vertical mixing position (FIG. 4) only by 180 ° into its vertical starting position (FIG 3) is pivoted back, then the mixed material taken up in the first container part 2, which is located below, then - in accordance with its natural angle of repose - in the first container part 2 such that an upper level of the bulk material is established which is at an angle with the upper edge 2b of this first container part 2 forms, with - according to the degree of filling of the container part - the bulk material the upper edge of the container part 2b can go out.
  • the size of the angular dimension ⁇ (FIG. 5), by which the mixing container 1 initially pivots over the starting position of the mixing container 1 when pivoting back, is dependent on the flow properties of the respective mixed material, i.e. the angular dimension ⁇ is relatively small in the case of easily flowing mix material and in the case of poorly flowing material Mixed material relatively large. In order to achieve the desired level compensation of the mix in the first container part 2, it is expedient if the angular dimension is at least 15 °.
  • any suitable embodiment can be used as the swivel drive device for the swivel movements of the mixing container 1, and even one that can be operated manually.
  • FIG. 1 A particularly preferred embodiment of the swivel drive device 10 is also illustrated in the drawing. To explain this swivel drive device 10, reference is first made again to FIG. 1.
  • This swivel drive device 10 contains a gear transmission mechanism, which has a drive tooth segment 12 as the drive element, which can be rotated about a first axis of rotation 13, which is fixed in the holder 5 and runs parallel to the horizontal mixing container support axis 6.
  • This drive toothed segment 12 is in meshing engagement with a drive toothed wheel 14, which is rotatable about a second axis of rotation 15, which is also fixedly mounted in the holder 5 and extends horizontally to the supporting axis 6.
  • An output gear 16, which is in drive connection with the drive gear 14, is arranged in a rotationally fixed manner on the support axis 6, with an intermediate arrangement of at least one further intermediate gear 17, which ensures a corresponding gear ratio and is freely rotatable.
  • the drive tooth segment 12 is formed in the region of its one circumferential section with a type of connecting claw 18, so that it thereby has a lever arm-like end 19a a piston rod 19 is connected in an articulated manner, this piston rod 19 being part of a pressure-driven swivel drive cylinder 20, one lower cylinder end 20a of which is articulated on the fixed holder 5.
  • the swivel drive cylinder 20 thus forms the actual drive element of the swivel drive device and can be designed in the form of a pneumatic or hydraulic cylinder.
  • the swivel drive device 10 ensures that the mixing container 1 can be pivoted from its starting position into its mixing position and back in the manner described above, it is also useful to arrange the second container part 3 in the stationary holder 5 so that it can be adjusted in height via the mixing container support axis 6 In order - as will be explained in more detail with reference to FIGS. 1 to 5 - with the aid of only a small height adjustability to facilitate the coupling and uncoupling of the two container parts 2 and 3.
  • the mixing container support shaft 6 together with its driven gear 16 is mounted on the free end 21a of a rocker arm 21 which is designed and arranged in the manner of a single-arm lever arm.
  • a height adjustment swivel drive 22 also acts on the free end 21a of the rocker 21 - accordingly articulated - on.
  • This swivel drive 22 can also be a pneumatic or hydraulic cylinder, the lower end 22a of which is articulated by the fixed holder 5, while the upper end 23a of its piston rod 23 engages the free swing end 21a.
  • rocker 21 in the manner of a housing in such a way that it simultaneously forms a type of gear box for the gear train from the drive gear 14 to the output gear 16.
  • the horizontal support axis 6 can be formed by two support pins, which are diametrically and precisely aligned on the outer walls of the second container part 3.
  • 6 also indicates how the rocker 21 supports the support shaft 6 at its free end 21a, is connected at this free end 21a to the upper end 23a of the piston rod 23 and how the other rocker end 21b is from the stationary second axis of rotation 15 is pivotally mounted.
  • the arrangement of the gear transmission mechanism with the drive toothed segment 12, the drive toothed wheel 14, the intermediate toothed wheel 17 and the driven toothed wheel 16 can also be seen.
  • the toothed segment 12 and the gearwheels 14, 16 are preferably 17 around simple spur gears with the corresponding number of teeth in order to be able to bring about the most suitable gear ratio for the swiveling movement.
  • the transportable first container part 2 is driven approximately flush under the second container part 3, the first container part 2 still being supported on its chassis 4, while the second container part 3 is supported by the rocker arm 21 and by means of the height adjustment pivot drive 22 is moved to its upper altitude.
  • the open end 3b of the second container part 3 faces the upper edge 2b at the upper open end of the first container part 2.
  • the height adjustment swivel drive 22 has been actuated such that its piston rod 23 has pivoted the rocker 21 downward about the stationary second axis of rotation 15 according to arrow 24, to the extent that the z. Z. located above the second container part 3 is guided up to the first container part 2, so that these two container parts 2 and 3 can be firmly connected to one another in a manner known per se (therefore not shown in detail) to form a single mixing container 1.
  • the rocker 21 is pivoted by the height adjustment swivel drive 22 and its piston rod 23 according to arrow 25 around the stationary second axis of rotation 15 so far that the entire mixing container 1 is raised above the support axis 6 and the bottom outlet 2a of the first container part 2 is lifted sufficiently far from the chassis 4.
  • 3 is essentially the vertical, stable starting position of the mixing container, in which the second container part 3 thus forms the lid of the mixing container 1.
  • the swivel drive device 10 is operated according to FIG. 4 in such a way that the mixing container 1 according to arrow 26 from its in FIG. 3 Starting position shown is pivoted into the vertical mixing position shown in Fig. 4, wherein it performs a pivoting movement of 180 ° about its horizontal support axis 6.
  • the swivel drive cylinder 20 is activated, the piston rod 19 of which extends upwards in the direction of the arrow 27 and thereby rotates the drive tooth segment 12 about the stationary first axis of rotation 13.
  • the desired pivoting movement of the mixing container 1 is carried out by means of the toothing engagement explained or the gear transmission mechanism formed with the gear wheels 14, 17 and 16.
  • the mix contained in the mixing container 1 is then mixed using the agitator 7 (FIG. 1).
  • the swivel drive device 10 is then operated in the opposite direction by the swivel drive cylinder 20 moving the piston rod 19 in the opposite direction (arrow 28).
  • the swivel drive device 10 then ensures that the mixing container 1 is pivoted not only by 180 °, but by 180 ° plus the angular dimension above the vertical starting position (FIG. 3) into the level compensation position according to FIG. 5, in accordance with arrow 29; Only from there is the mixing container 1 pivoted back into the vertical, stable starting position according to FIG. 3 by a corresponding reversing of the swivel drive cylinder 20, so that the upper product level 11 in the first container part 2 then runs approximately parallel to the upper edge 2b of the first container part 2 .
  • the mixing container 1 is lowered again into the position according to FIG. 2 via the rocker 21 and the supporting pin 6, so that the first container part 2, which is now at the bottom again, with its bottom outlet 2a on the chassis 4 can be turned off.
  • the second container part 3 located above is raised again via the rocker 21, so that the first container part 2 is unhindered can be moved out under the second container part 3 and transported away.
  • any suitable embodiment can be used as a swivel drive device.
  • the drive toothed segment can also be formed by another suitable gearwheel, and other suitable swivel drive members, for example a motorized, mechanical drive, can also be used for the rotary drive of this drive toothed segment 12 (or a suitable other gearwheel).
  • FIG. 6 only one side of the mixing container or the mixing device, on which the swivel drive device 10 and the height-adjustable rocker 21 are arranged, is illustrated, but that the diametrically opposite side of the mixing container 1 is at least equally adjustable in height is mounted and mounted, ie only a simple rocker arm can be provided on the side of the mixing container 1 opposite the swivel drive device 10, which can be adjusted in height synchronously with the rocker arm 21.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Description

Die Erfindung betrifft eine Mischvorrichtung nach dem Oberbegriff des Patentanspruches 1.The invention relates to a mixing device according to the preamble of claim 1.

Eine Mischvorrichtung der vorausgesetzten Art ist beispielsweise aus der DE-C-21 10 047 bekannt. Bei dieser Mischvorrichtung befindet sich das Rührwerk in dem zweiten Behälterteil der an der ortsfesten Halterung schwenkbar gelagert ist, wodurch der transportabel ausgebildete erste Behälterteil, nachdem er unter den zweiten Behälterteil gebracht worden ist, durch eine verhältnismäßig kleine vertikale Relativbewegung zwischen beiden Behälterteilen mit dem zweiten Behälterteil verbunden werden kann. Durch Wegfall einer größeren vertikalen Relativbewegung zwischen dem transportabel ausgebildeten ersten Behälterteil und dem das Rührwerk enthaltenden zweiten Behälterteil verringert sich nicht nur der anlagentechnische Aufwand, sondern es vereinfacht sich auch die Handhabung der Mischvorrichtung.A mixing device of the required type is known for example from DE-C-21 10 047. In this mixing device, the agitator is located in the second container part which is pivotably mounted on the stationary holder, as a result of which the transportable first container part, after it has been brought under the second container part, by means of a relatively small vertical relative movement between the two container parts with the second container part can be connected. By eliminating a larger vertical relative movement between the first container part, which is designed to be transportable, and the second container part, which contains the agitator, not only the outlay in terms of system technology is reduced, but also the handling of the mixing device is simplified.

Da der Mischbehälter und das Rührwerk dann aus der etwa vertikalen Ausgangsstellung um 180° in eine vertikale Mischstellung geschwenkt werden, in der der zweite Behälterteil den Boden des Mischbehälters bildet, wird erreicht, daß das Mischwerk sich dicht am Boden des Mischbehälters befindet, wodurch auch bei schwierig zu mischenden Gütern eine vollständige Durchmischung gewährleistet wird.Since the mixing container and the agitator are then pivoted from the approximately vertical starting position by 180 ° into a vertical mixing position in which the second container part forms the bottom of the mixing container, it is achieved that the mixer is located close to the bottom of the mixing container, which also means difficult to mix goods a complete mixing is guaranteed.

Bei dieser bekannten Mischvorrichtung ist der Antriebsmotor für das Rührwerk in axialer Verlängerung des Rührwerks auf der Außenseite des zweiten Behälterteiles angeordnet, so daß der Antriebsmotor zusammen mit dem zweiten Behälterteil beim Übergang von der Ausgangsstellung in die Mischstellung (und umgekehrt) geschwenkt wird.In this known mixing device is the drive motor arranged for the agitator in the axial extension of the agitator on the outside of the second container part, so that the drive motor is pivoted together with the second container part at the transition from the starting position to the mixing position (and vice versa).

Bei diesen und ähnlichen Mischvorrichtungen ist es in der Praxis wünschenswert, daß das im Mischbehälter enthaltene Gut nach dem Mischvorgang und Zurückschwenken des Mischbehälters in die vertikale Ausgangsstellung ein zumindest annähernd parallel zur Oberkante des ersten Behälterteiles verlaufendes oberes Gutniveau einnimmt.In these and similar mixing devices, it is desirable in practice that the material contained in the mixing container assumes an upper material level running at least approximately parallel to the upper edge of the first container part after the mixing process and pivoting the mixing container back into the vertical starting position.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Mischvorrichtung der im Oberbegriff des Anspruches 1 vorausgesetzten Art in der Weise weiterzubilden, daß bei verhältnismäßig einfacher konstruktiver Ausführung der Mischvorrichtung selbst das fertige Mischgut nach Rückkehr des Mischbehälters in seine stabile Ausgangsstellung (in der der erste Behälterteil vom zweiten Behälterteil wieder abgekuppelt wird) im ersten Behälterteil ein oberes Gutniveau einnimmt, das annähernd parallel zur Oberkante dieses ersten Behälterteiles liegt.The invention is therefore based on the object of developing a mixing device of the type required in the preamble of claim 1 in such a way that, with a relatively simple structural design of the mixing device itself, the finished mixture itself after the mixing container returns to its stable starting position (in which the first container part from second container part is uncoupled) in the first container part assumes an upper good level which is approximately parallel to the upper edge of this first container part.

Erfindungsgemäß wird dies durch das im Kennzeichen des Anspruches 1 angegebene Merkmal erreicht.According to the invention this is achieved by the feature specified in the characterizing part of claim 1.

Während bei der oben beschriebenen bekannten Ausführung (DE-C-21 10 047) der Mischbehälter um 180° um die horizontale Tragachse aus der vertikalen Ausgangsstellung in die vertikale Mischstellung und nach Beendigung des Mischvorganges wieder um 180° in die vertikale, stabile Ausgangsstellung zurückgeschwenkt wird, ist bei der vorliegenden Erfindung für den Mischbehälter eine derart ausgebildete Schwenkantriebsvorrichtung vorgesehen, daß der Mischbehälter bei der Rückschwenk-Bewegung aus der Mischstellung in die stabile Ausgangsstellung zunächst um ein einstellbares Winkelmaß über diese Ausgangsstellung hinausgeschwenkt wird, und zwar in eine Niveau-Ausgleichsstellung, und erst dann wird der Mischbehälter auf dieser Niveau-Ausgleichsstellung in die stabile Ausgangsstellung zurückgeschwenkt. Wenn der Mischbehälter nach Beendigung des Mischvorganges aus der vertikalen Mischstellung um nur 180° in die Ausgangsstellung zurückgeschwenkt worden ist, dann böscht sich das Mischgut innerhalb des Mischbehälters noch unter einem auf die Guteigenschaften zurückzuführenden Schüttwinkel ab, d. h. das obere Gutniveau bildet einen Winkel zur Oberkante des Mischbehälters. Indem man nun erfindungsgemäß den Mischbehälter bei seinem Zurückschwenken aus der Mischstellung zunächst über die vertikale Ausgangsstellung, d. h. über 180° hinaus in die Niveau-Ausgleichsstellung schwenkt, vollzieht sich eine entgegengesetzte Schüttbewegung des Schüttgutes innerhalb des Mischbehälters, so daß nach dem Zurückschwenken aus der Niveau-Ausgleichsstellung in die vertikale, stabile Ausgleichsstellung das Mischgut ein annähernd parallel zur Oberkante des ersten Behälterteiles aufweisendes oberes Gutniveau einnimmt. Es versteht sich von selbst, daß die Größe des Winkelmaßes, um das die Rückschwenkbewegung über 180° hinausgeht, sich nach den Fließeigenschaften (Böschungswinkel) des Schüttgutes richtet, d. h. bei leicht fließendem Gut kommt man mit einem relativ kleinen Winkelmaß aus, während bei schwerfließendem Mischgut das Winkelmaß entsprechend größer sein muß, um den gewünschten Niveauausgleich herbeizuführen.While in the known embodiment described above (DE-C-21 10 047) the mixing container by 180 ° is pivoted back about the horizontal support axis from the vertical starting position into the vertical mixing position and after completion of the mixing process again through 180 ° into the vertical, stable starting position, in the present invention, a swivel drive device designed for the mixing container is provided such that the mixing container swings back Movement from the mixing position into the stable starting position is first pivoted by an adjustable angular dimension beyond this starting position, namely into a level compensation position, and only then is the mixing container pivoted back into the stable starting position at this level compensation position. If the mixing container has been swiveled back from the vertical mixing position by only 180 ° to the starting position after the mixing process has ended, then the mixing material within the mixing container is still bended at an angle of repose due to the good properties, i.e. the upper material level forms an angle to the upper edge of the Mixing container. By pivoting the mixing container according to the invention when it swivels back from the mixing position initially over the vertical starting position, ie over 180 ° into the level compensation position, an opposite bulk movement of the bulk material takes place within the mixing container, so that after pivoting back out of the level Equalization position in the vertical, stable equilibrium position, the mix has an upper approximately parallel to the upper edge of the first container part Takes good level. It goes without saying that the size of the angular dimension by which the swiveling movement goes beyond 180 ° depends on the flow properties (slope angle) of the bulk material, that is to say a relatively small angular dimension is required for easily flowing material, while for poorly flowing mix material the angular dimension must be correspondingly larger in order to bring about the desired level compensation.

Vorteilhafte Weiterbildungen sowie konstruktive Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous further developments and constructive embodiments of the invention are the subject of the dependent claims.

Die Erfindung sei im folgenden Anhand eines bevorzugten Ausführungsbeispieles näher erläutert. In der weitgehend schematisch gehaltenen Zeichnung zeigen

Fig. 1 bis 5
gleichartige Seitenansichten bei jeweils verschiedenen Stellungen und Betriebszuständen der Mischvorrichtung, insbesondere des Mischbehälters;
Fig. 6
eine Teilaufsicht auf die Mischvorrichtung.
The invention is explained in more detail below with the aid of a preferred exemplary embodiment. Show in the largely schematic drawing
1 to 5
Similar side views at different positions and operating states of the mixing device, in particular the mixing container;
Fig. 6
a partial supervision of the mixing device.

Der allgemeine Aufbau dieser erfindungsgemäßen Mischvorrichtung sei zunächst anhand der Fig. 1 beschrieben, wobei jedoch betont wird, daß in allen anderen Fig. dieselben Vorrichtungsteile mit denselben Bezugszeichen versehen sind, so daß sich die anhand der Fig. 1 vorgenommene Beschreibung auch auf die übrigen Fig., insbesondere die Fig. 2 bis 5 bezieht.The general structure of this mixing device according to the invention is first described with reference to FIG. 1, but it is emphasized that the same device parts with the same reference numerals in all other figures are provided, so that the description made with reference to FIG. 1 also refers to the remaining FIGS., in particular FIGS. 2 to 5.

Die in Fig. 1 veranschaulichte Mischvorrichtung enthält einen Mischbehälter 1, der aus zwei schalenförmigen Behälterteilen, nämlich dem ersten Behälterteil 2 und dem zweiten Behälterteil 3 besteht. Die beiden Behälterteile 2 und 3 sind in an sich bekannter und daher im einzelnen nicht näher veranschaulichter Weise miteinander verbindbar. Der erste Behälterteil 2 ist mit Hilfe eines Fahrgestells 4 oder dergleichen transportabel ausgebildet und besitzt im dargestellten Ausführungsbeispiel einen Bodenauslauf 2a.The mixing device illustrated in FIG. 1 contains a mixing container 1, which consists of two bowl-shaped container parts, namely the first container part 2 and the second container part 3. The two container parts 2 and 3 can be connected to one another in a manner known per se and therefore not shown in detail. The first container part 2 is designed to be transportable with the aid of a chassis 4 or the like and, in the exemplary embodiment shown, has a floor outlet 2a.

Der zweite Behälterteil 3 ist an einer gestellartigen, ortsfesten Halterung 5 mittels einer horizontalen Tragachse 6 in einer Weise drehbar gelagert, wie es weiter unten noch im einzelnen erläutert wird. Im zweiten Behälterteil 3 ist ein Rührwerk 7 angeordnet, das ebenfalls in an sich bekannter Weise ausgeführt sein kann und über eine Rührwerkswelle 8 von einem Antriebsmotor 9 angetrieben wird, der an die Bodenwand 3a dieses zweiten Behälterteiles 3 angeflanscht ist. Die Rührwerkswelle 8 steht in der Ausgangsstellung und Mischstellung des Mischbehälters 1 vertikal, entsprechend der vertikalen Achse 1a des Mischbehälters 1.The second container part 3 is rotatably mounted on a frame-like, fixed holder 5 by means of a horizontal support axis 6 in a manner as will be explained in more detail below. An agitator 7 is arranged in the second container part 3, which can also be carried out in a manner known per se and is driven by a drive motor 9 via an agitator shaft 8, which is flanged to the bottom wall 3a of this second container part 3. The agitator shaft 8 is vertical in the starting position and mixing position of the mixing container 1, corresponding to the vertical axis 1 a of the mixing container 1.

Es sei an dieser Stelle bemerkt, daß das Rührwerk 7 selbstverständlich auch in der Mischvorrichtung gemäß den Fig. 2 bis 5 im zweiten Behälterteil 3 vorhanden ist, daß dieses Rührwerk 7 jedoch in diesen Fig. 2 bis 5 der Übersichtlichkeit halber nicht besonders veranschaulicht ist.At this point it should be noted that the agitator 7 of course also in the mixing device according to FIGS. 2 to 5 in the second container part 3 that this agitator 7 is not particularly illustrated in these FIGS. 2 to 5 for the sake of clarity.

Die Mischvorrichtung enthält eine Schwenkantriebseinrichtung 10 für den Mischbehälter 1. Mit Hilfe dieser Schwenkantriebseinrichtung 10 kann der Mischbehälter 1 aus seiner insbesondere in Fig. 3 gezeigten vertikalen, stabilen Ausgangsstellung, in der der zweite Behälterteil 3 den Deckel des Mischbehälters 1 bildet und mit dem ersten Behälterteil 2 verbunden (zusammengekuppelt) ist, um 180° um seine horizontale Tragachse 6 in seine vertikale, stabile Mischstellung geschwenkt werden, die in Fig. 4 veranschaulicht ist und in der der zweite Behälterteil 3 den Boden des Mischbehälters 1 bildet.The mixing device contains a swivel drive device 10 for the mixing container 1. With the aid of this swivel drive device 10, the mixing container 1 can be moved out of its vertical, stable starting position shown in particular in FIG. 3, in which the second container part 3 forms the lid of the mixing container 1 and with the first container part 2 is connected (coupled together) by 180 ° about its horizontal support axis 6 into its vertical, stable mixing position, which is illustrated in FIG. 4 and in which the second container part 3 forms the bottom of the mixing container 1.

Nach Beendigung des Mischvorganges (in der Mischstellung gemäß Fig. 4) wird der Mischbehälter 1 dann wieder in seine vertikale, stabile Ausgangsstellung gemäß Fig. 3 zurückgeschwenkt, damit der erste Behälterteil 2 vom zweiten Behälterteil 3 wieder abgekuppelt werden kann, um diesen ersten Behälterteil 2 mit dem fertiggemischten Gut auf dem Fahrgestell 4 abzutransportieren.After the mixing process has ended (in the mixing position according to FIG. 4), the mixing container 1 is then pivoted back into its vertical, stable starting position according to FIG. 3, so that the first container part 2 can be uncoupled from the second container part 3 by this first container part 2 to be transported on the chassis 4 with the ready-mixed goods.

Um nun den Mischbehälter 1 nach Beendigung des Mischvorganges in seine stabile Ausgangsstellung (gemäß Fig. 3) zu bewegen, wird der Mischbehälter 1 aus der vertikalen Mischstellung (Fig. 4) nicht einfach um 180° wieder zurückgeschwenkt, sondern die Schwenkantriebseinrichtung 10 ist derart ausgebildet, daß der Mischbehälter 1 bei der Rückschwenkung in seine stabile Ausgangsstellung (Fig. 3) zunächst in eine um ein einstellbares Winkelmaß (vgl. Winkel α in Fig. 5) über diese Ausgangsstellung hinausgehende Niveau-Ausgleichsstellung geschwenkt wird, wie sie in Fig. 5 veranschaulicht ist. Dies bedeutet also, daß der Mischbehälter 1 aus der vertikalen Mischstellung (Fig. 4) um 180° plus das Winkelmaß α in die Niveau-Ausgleichsstellung gemäß Fig. 5 geschwenkt wird. Erst dann wird der Mischbehälter 1 wieder um das Winkelmaß α in die stabile Ausgangsstellung gemäß Fig. 3 zurückgeschwenkt, in der also der Mischbehälter 1 vertikal ausgerichtet ist.In order to move the mixing container 1 into its stable starting position (according to FIG. 3) after the mixing process has ended, the mixing container 1 is turned off the vertical mixing position (FIG. 4) is not simply pivoted back again by 180 °, but the swivel drive device 10 is designed such that the mixing container 1 when pivoting back into its stable starting position (FIG. 3) initially into an adjustable angular dimension (cf. Angle α in Fig. 5) is pivoted beyond this initial position level compensation position, as illustrated in Fig. 5. This means that the mixing container 1 is pivoted from the vertical mixing position (FIG. 4) by 180 ° plus the angular dimension α into the level compensation position according to FIG. 5. Only then is the mixing container 1 pivoted back again by the angular dimension α into the stable starting position according to FIG. 3, in which the mixing container 1 is thus oriented vertically.

Der große Vorteil der aufeinanderfolgenden Schwenkabschnitte beim Zurückschwenken des Mischbehälters 1 aus der Mischstellung in seine vertikale, stabile Ausgangsstellung ist folgender: Wenn der Mischbehälter 1 nach Beendigung des Mischvorganges aus seiner vertikalen Mischstellung (Fig. 4) nur um 180° in seine vertikale Ausgangsstellung (Fig. 3) zurückgeschwenkt wird, dann böscht sich das im dann unten befindlichen ersten Behälterteil 2 aufgenommene Mischgut - entsprechend seinem natürlichen Schüttwinkel - im ersten Behälterteil 2 derart ab, daß sich ein oberes Schüttgutniveau einstellt, das mit der Oberkante 2b dieses ersten Behälterteiles 2 einen Winkel bildet, wobei - entsprechend dem Füllungsgrad des Behälterteiles - das Schüttgut über die Behälterteil-Oberkante 2b hinausgehen kann. Indem nun der ganze Mischbehälter 1 beim Zurückschwenken in seine Ausgangsstellung zunächst über diese Ausgangsstellung hinaus in die Niveau-Ausgleichsstellung (Fig. 5) geschwenkt wird, vollzieht sich eine entgegengesetzte Mischgutbewegung (durch die erneute Schrägstellung des Mischbehälters 1 in entgegengesetzter Richtung) wodurch das Mischgut gewissermaßen zurückfällt (entsprechend seinem natürlichen Schüttwinkel), so daß das obere Gutniveau im ersten Behälterteil 2 annähernd parallel zur Oberkante 2b dieses ersten Behälterteiles 2 ausgerichtet wird. Wenn der Mischbehälter 1 dann aus dieser Niveau-Ausgleichsstellung gemäß Fig. 5 in seine vertikale-stabile Ausgangsstellung (gemäß Fig. 3) zurückgeschwenkt ist, dann nimmt das im ersten Behälterteil 2 enthaltene Mischgut ein ausgeglichenes Niveau ein, wie es in den Fig. 3 und 5 bei 11 gestrichelt angedeutet ist.The great advantage of the successive swiveling sections when swiveling the mixing container 1 back from the mixing position into its vertical, stable starting position is as follows: when the mixing container 1 after the mixing process has ended from its vertical mixing position (FIG. 4) only by 180 ° into its vertical starting position (FIG 3) is pivoted back, then the mixed material taken up in the first container part 2, which is located below, then - in accordance with its natural angle of repose - in the first container part 2 such that an upper level of the bulk material is established which is at an angle with the upper edge 2b of this first container part 2 forms, with - according to the degree of filling of the container part - the bulk material the upper edge of the container part 2b can go out. Since the entire mixing container 1 is initially pivoted back into its initial position beyond this initial position into the level compensation position (FIG. 5), an opposite movement of the mixture takes place (due to the inclination of the mixing container 1 again in the opposite direction), so to speak, the mixture falls back (according to its natural angle of repose) so that the upper product level in the first container part 2 is aligned approximately parallel to the upper edge 2b of this first container part 2. If the mixing container 1 is then pivoted back from its level compensation position according to FIG. 5 into its vertically stable starting position (according to FIG. 3), then the mixture contained in the first container part 2 assumes a balanced level, as shown in FIG. 3 and 5 is indicated by dashed lines at 11.

Die Größe des Winkelmaßes α (Fig. 5), um das der Mischbehälter 1 bei der Rückschwenkung zunächst über die Ausgangsstellung des Mischbehälters 1 hinausschwenkt, ist abhängig von der Fließeigenschaft des jeweiligen Mischgutes, d. h. bei leichtfließendem Mischgut ist das Winkelmaß α relativ klein und bei schwerfließendem Mischgut ralativ groß. Um den gewünschten Niveau-Ausgleich des Mischgutes im ersten Behälterteil 2 zu erreichen, ist es zweckmäßig, wenn das Winkelmaß wenigstens 15° beträgt.The size of the angular dimension α (FIG. 5), by which the mixing container 1 initially pivots over the starting position of the mixing container 1 when pivoting back, is dependent on the flow properties of the respective mixed material, i.e. the angular dimension α is relatively small in the case of easily flowing mix material and in the case of poorly flowing material Mixed material relatively large. In order to achieve the desired level compensation of the mix in the first container part 2, it is expedient if the angular dimension is at least 15 °.

Als Schwenkantriebseinrichtung für die oben erläuterten Schwenkbewegungen des Mischbehälters 1 kann generell jede geeignete Ausführung verwendet werden, und zwar selbst eine solche, die manuell betätigbar ist.In general, any suitable embodiment can be used as the swivel drive device for the swivel movements of the mixing container 1, and even one that can be operated manually.

Eine besonders bevorzugte Ausführungsform der Schwenkantriebseinrichtung 10 ist ebenfalls in der Zeichnung veranschaulicht. Zur Erläuterung dieser Schwenkantriebseinrichtung 10 sei zunächst wiederum auf Fig. 1 Bezug genommen.A particularly preferred embodiment of the swivel drive device 10 is also illustrated in the drawing. To explain this swivel drive device 10, reference is first made again to FIG. 1.

Diese Schwenkantriebseinrichtung 10 enthält ein Zahnrad-Übersetzungsgetriebe, das als Antriebselement ein Antriebszahnsegment 12 besitzt, das um eine parallel zur horizontalen Mischbehälter-Tragachse 6 verlaufende, ortsfest in der Halterung 5 gelagerte erste Drehachse 13 drehbar ist. Dieses Antriebszahnsegment 12 steht in Verzahnungseingriff mit einem Antriebszahnrad 14, das um eine ebenfalls ortsfest in der Halterung 5 gelagerte und horizontal zur Tragachse 6 verlaufende zweite Drehachse 15 drehbar ist. Drehfest auf der Tragachse 6 ist ein Abtriebszahnrad 16 angeordnet, das mit dem Antriebszahnrad 14 in Antriebsverbindung steht, und zwar unter Zwischenanordnung wenigstens eines weiteren Zwischenzahnrades 17, das für eine entsprechende Zahnradübersetzung sorgt und frei drehbar gelagert ist. Das Antriebszahnsegment 12 ist im Bereich seines einen Umfangsabschnittes mit einer Art Verbindungsklaue 18 ausgebildet, so daß es hierdurch hebelarmartig mit dem einen Ende 19a einer Kolbenstange 19 gelenkig verbunden ist, wobei diese Kolbenstange 19 Teil eines druckmittelbetriebenen Schwenkantriebszylinders 20 ist, dessen eines, unteres Zylinderende 20a an der ortsfesten Halterung 5 gelenkig gehaltert ist. Der Schwenkantriebszylinder 20 bildet somit das eigentliche Antriebsorgan der Schwenkantriebseinrichtung und kann in Form eines Pneumatik- oder Hydraulikzylinders ausgeführt sein.This swivel drive device 10 contains a gear transmission mechanism, which has a drive tooth segment 12 as the drive element, which can be rotated about a first axis of rotation 13, which is fixed in the holder 5 and runs parallel to the horizontal mixing container support axis 6. This drive toothed segment 12 is in meshing engagement with a drive toothed wheel 14, which is rotatable about a second axis of rotation 15, which is also fixedly mounted in the holder 5 and extends horizontally to the supporting axis 6. An output gear 16, which is in drive connection with the drive gear 14, is arranged in a rotationally fixed manner on the support axis 6, with an intermediate arrangement of at least one further intermediate gear 17, which ensures a corresponding gear ratio and is freely rotatable. The drive tooth segment 12 is formed in the region of its one circumferential section with a type of connecting claw 18, so that it thereby has a lever arm-like end 19a a piston rod 19 is connected in an articulated manner, this piston rod 19 being part of a pressure-driven swivel drive cylinder 20, one lower cylinder end 20a of which is articulated on the fixed holder 5. The swivel drive cylinder 20 thus forms the actual drive element of the swivel drive device and can be designed in the form of a pneumatic or hydraulic cylinder.

Während die Schwenkantriebseinrichtung 10 dafür sorgt, daß der Mischbehälter 1 in der oben beschriebenen Weise aus seiner Ausgangsstellung in seine Mischstellung und zurück geschwenkt werden kann, ist es ferner sinnvoll, den zweiten Behälterteil 3 über die Mischbehälter-Tragachse 6 höhenverstellbar in der ortsfesten Halterung 5 anzuordnen, um - wie anhand der Fig. 1 bis 5 noch näher erläutert wird -mit Hilfe einer nur geringen Höhenverstellbarkeit das Zusammenkuppeln und Auseinanderkuppeln der beiden Behälterteile 2 und 3 zu erleichtern. Für diese Höhenverstellbarkeit des zweiten Behälterteiles 3 ist die Mischbehälter-Tragachse 6 mitsamt ihrem Abtriebszahnrad 16 am freien Ende 21a einer nach Art eines einarmigen Hebelarmes ausgebildeten und angeordneten Schwinge 21 gelagert. Das andere Ende 21b dieser Schwinge 21 wird von der ortsfesten zweiten Drehachse 15 derart gehaltert, daß die ganze Schwinge 21 um diese zweite Drehachse 15 geschwenkt werden kann. Für die Herbeiführung dieser Schwenkbewegung greift am freien Ende 21a der Schwinge 21 ferner ein Höhenverstellungs-Schwenkantrieb 22 - entsprechend gelenkig - an. Bei diesem Schwenkantrieb 22 kann es sich ebenfalls um einen Pneumatik- oder Hydraulikzylinder handeln, dessen unteres Ende 22a von der ortsfesten Halterung 5 gelenkig gehaltert ist, während das obere Ende 23a seiner Kolbenstange 23 am freien Schwingenende 21a angreift.While the swivel drive device 10 ensures that the mixing container 1 can be pivoted from its starting position into its mixing position and back in the manner described above, it is also useful to arrange the second container part 3 in the stationary holder 5 so that it can be adjusted in height via the mixing container support axis 6 In order - as will be explained in more detail with reference to FIGS. 1 to 5 - with the aid of only a small height adjustability to facilitate the coupling and uncoupling of the two container parts 2 and 3. For this height adjustability of the second container part 3, the mixing container support shaft 6 together with its driven gear 16 is mounted on the free end 21a of a rocker arm 21 which is designed and arranged in the manner of a single-arm lever arm. The other end 21b of this rocker 21 is held by the stationary second axis of rotation 15 such that the entire rocker 21 can be pivoted about this second axis of rotation 15. To bring about this swiveling movement, a height adjustment swivel drive 22 also acts on the free end 21a of the rocker 21 - accordingly articulated - on. This swivel drive 22 can also be a pneumatic or hydraulic cylinder, the lower end 22a of which is articulated by the fixed holder 5, while the upper end 23a of its piston rod 23 engages the free swing end 21a.

In vorteilhafter Weise wird es vorgezogen, die Schwinge 21 gehäuseartig derart auszuführen, daß sie gleichzeitig eine Art Getriebekasten für den Getriebezug vom Antriebszahnrad 14 bis zum Abtriebszahnrad 16 bildet.In an advantageous manner, it is preferred to design the rocker 21 in the manner of a housing in such a way that it simultaneously forms a type of gear box for the gear train from the drive gear 14 to the output gear 16.

In der Teil-Aufsicht gemäß Fig. 6 ist zu erkennen, wie eine Seite des Mischbehälters 1 und insbesondere des zweiten Behälterteiles 3 fest mit der Tragachse 6 verbunden ist. Danach kann die horizontale Tragachse 6 durch zwei Tragzapfen gebildet sein, die sich diametral und genau fluchtend an den Außenwänden des zweiten Behälterteiles 3 gegenüberliegen. In dieser Fig. 6 ist außerdem angedeutet, wie die Schwinge 21 an ihrem freien Ende 21a die Tragachse 6 lagert, an diesem freien Ende 21a mit dem oberen Ende 23a der Kolbenstange 23 verbunden ist und wie das andere Schwingenende 21b von der ortsfesten zweiten Drehachse 15 schwenkbar gehaltert ist. Auch die Zusammenordnung des Zahnrad-Übersetzungsgetriebes mit dem Antriebszahnsegment 12, dem Antriebszahnrad 14, dem Zwischenzahnrad 17 und dem Abtriebszahnrad 16 ist zu erkennen. Vorzugsweise handelt es sich beim Zahnsegment 12 und den Zahnrädern 14, 16, 17 um einfache Stirnräder mit entsprechender Zähnezahl,um die am besten geeignete Zahnradübersetzung für die Schwenkbewegung herbeiführen zu können.6 shows how one side of the mixing container 1 and in particular of the second container part 3 is firmly connected to the supporting axis 6. Thereafter, the horizontal support axis 6 can be formed by two support pins, which are diametrically and precisely aligned on the outer walls of the second container part 3. 6 also indicates how the rocker 21 supports the support shaft 6 at its free end 21a, is connected at this free end 21a to the upper end 23a of the piston rod 23 and how the other rocker end 21b is from the stationary second axis of rotation 15 is pivotally mounted. The arrangement of the gear transmission mechanism with the drive toothed segment 12, the drive toothed wheel 14, the intermediate toothed wheel 17 and the driven toothed wheel 16 can also be seen. The toothed segment 12 and the gearwheels 14, 16 are preferably 17 around simple spur gears with the corresponding number of teeth in order to be able to bring about the most suitable gear ratio for the swiveling movement.

Anhand der Fig. 1 bis 5 sei nachfolgend nochmals auf die verschiedenen Betriebszustände der Mischvorrichtung eingegangen:1 to 5, the various operating states of the mixing device will be discussed again below:

In der Darstellung gemäß Fig. 1 ist der transportable erste Behälterteil 2 etwa fluchtend unter den zweiten Behälterteil 3 gefahren, wobei sich der erste Behälterteil 2 noch auf seinem Fahrgestell 4 abstützt, während der zweite Behälterteil 3 durch die Schwinge 21 und mit Hilfe des HöhenverstellungsSchwenkantriebes 22 in seine obere Höhenlage bewegt ist. Das offene Ende 3b des zweiten Behälterteiles 3 weist dabei gegen die Oberkante 2b am oberen offenen Ende des ersten Behälterteiles 2.In the illustration according to FIG. 1, the transportable first container part 2 is driven approximately flush under the second container part 3, the first container part 2 still being supported on its chassis 4, while the second container part 3 is supported by the rocker arm 21 and by means of the height adjustment pivot drive 22 is moved to its upper altitude. The open end 3b of the second container part 3 faces the upper edge 2b at the upper open end of the first container part 2.

Gemäß Fig. 2 ist der Höhenverstellungs-Schwenkantrieb 22 derart betätigt worden, daß seine Kolbenstange 23 die Schwinge 21 um die ortsfeste zweite Drehachse 15 gemäß Pfeil 24 nach unten geschwenkt hat, und zwar so weit nach unten, daß der z. Z. oben befindliche zweite Behälterteil 3 bis gegen den ersten Behälterteil 2 geführt ist, so daß diese beiden Behälterteile 2 und 3 in an sich bekannter Weise (daher nicht im einzelnen dargestellt) zu einem einzigen Mischbehälter 1 fest miteinander verbunden werden können.2, the height adjustment swivel drive 22 has been actuated such that its piston rod 23 has pivoted the rocker 21 downward about the stationary second axis of rotation 15 according to arrow 24, to the extent that the z. Z. located above the second container part 3 is guided up to the first container part 2, so that these two container parts 2 and 3 can be firmly connected to one another in a manner known per se (therefore not shown in detail) to form a single mixing container 1.

Nachdem die beiden Behälterteile 2 und 3 zusammengekuppelt sind, wird die Schwinge 21 durch den Höhenverstellungs-Schwenkantrieb 22 und dessen Kolbenstange 23 entsprechend Pfeil 25 um die ortstfeste zweite Drehachse 15 wieder so weit nach oben geschwenkt, daß der gesamte Mischbehälter 1 über die Tragachse 6 angehoben wird und der Bodenauslauf 2a des ersten Behälterteiles 2 ausreichend weit vom Fahrgestell 4 abgehoben ist. Diese Stellung gemäß Fig. 3 ist im wesentlichen die vertikale, stabile Ausgangsstellung des Mischbehälters, in der also der zweite Behälterteil 3 den Deckel des Mischbehälters 1 bildet.After the two container parts 2 and 3 are coupled together are, the rocker 21 is pivoted by the height adjustment swivel drive 22 and its piston rod 23 according to arrow 25 around the stationary second axis of rotation 15 so far that the entire mixing container 1 is raised above the support axis 6 and the bottom outlet 2a of the first container part 2 is lifted sufficiently far from the chassis 4. 3 is essentially the vertical, stable starting position of the mixing container, in which the second container part 3 thus forms the lid of the mixing container 1.

Um nun den angehobenen Mischbehälter 1 aus seiner vertikalen Ausgangsstellung (Fig. 3) in seine vertikale, stabile Mischstellung zu schwenken, wird gemäß Fig. 4 die Schwenkantriebseinrichtung 10 derart in Betrieb gesetzt, daß der Mischbehälter 1 gemäß Pfeil 26 aus seiner in Fig. 3 gezeigten Ausgangsstellung in die in Fig. 4 dargestellte vertikale Mischstellung geschwenkt wird, wobei er eine Schwenkbewegung von 180° um seine horizontale Tragachse 6 ausführt. Zu diesem Zweck wird der Schwenkantriebszylinder 20 aktiviert, dessen Kolbenstange 19 in Richtung des Pfeiles 27 nach oben ausfährt und dadurch das Antriebszahnsegment 12 um die ortsfeste erste Drehachse 13 dreht. Durch den erläuterten Verzahnungseingriff bzw. das gebildete Zahnrad-Übersetzungsgetriebe mit den Zahnrädern 14, 17 und 16 wird die gewünschte Schwenkbewegung des Mischbehälters 1 ausgeführt. In der vertikalen, stabilen Mischstellung gemäß Fig. 4 wird dann das im Mischbehälter 1 enthaltene Mischgut mit Hilfe des Rührwerks 7 (Fig. 1) gemischt.In order now to pivot the raised mixing container 1 from its vertical starting position (FIG. 3) into its vertical, stable mixing position, the swivel drive device 10 is operated according to FIG. 4 in such a way that the mixing container 1 according to arrow 26 from its in FIG. 3 Starting position shown is pivoted into the vertical mixing position shown in Fig. 4, wherein it performs a pivoting movement of 180 ° about its horizontal support axis 6. For this purpose, the swivel drive cylinder 20 is activated, the piston rod 19 of which extends upwards in the direction of the arrow 27 and thereby rotates the drive tooth segment 12 about the stationary first axis of rotation 13. The desired pivoting movement of the mixing container 1 is carried out by means of the toothing engagement explained or the gear transmission mechanism formed with the gear wheels 14, 17 and 16. In the vertical, stable 4, the mix contained in the mixing container 1 is then mixed using the agitator 7 (FIG. 1).

Nach Beedigung des Mischvorganges wird die Schwenkantriebseinrichtung 10 dann in umgekehrter Richtung betrieben, indem der Schwenkantriebszylinder 20 die Kolbenstange 19 in umgekehrter Richtung (Pfeil 28) bewegt. Die Schwenkantriebseinrichtung 10 sorgt dann dafür, daß der Mischbehälter 1 gemäß Pfeil 29 nicht nur um 180°, sondern um 180° plus des Winkelmaß zunächst über die vertikale Ausgangsstellung (Fig. 3) hinaus in die Niveau-Ausgleichsstellung gemäß Fig. 5 geschwenkt wird; erst von dort wird dann - durch eine entsprechende Umsteuerung des Schwenkantriebszylinders 20 - der Mischbehälter 1 in die vertikale, stabile Ausgangslage gemäß Fig. 3 zurückgeschwenkt, so daß dann das obere Gutniveau 11 im ersten Behälterteil 2 etwa parallel zur Oberkante 2b des ersten Behälterteiles 2 verläuft.After completion of the mixing process, the swivel drive device 10 is then operated in the opposite direction by the swivel drive cylinder 20 moving the piston rod 19 in the opposite direction (arrow 28). The swivel drive device 10 then ensures that the mixing container 1 is pivoted not only by 180 °, but by 180 ° plus the angular dimension above the vertical starting position (FIG. 3) into the level compensation position according to FIG. 5, in accordance with arrow 29; Only from there is the mixing container 1 pivoted back into the vertical, stable starting position according to FIG. 3 by a corresponding reversing of the swivel drive cylinder 20, so that the upper product level 11 in the first container part 2 then runs approximately parallel to the upper edge 2b of the first container part 2 .

Nach Erreichen der vertikalen, stabilen Ausgangslage gemäß Fig. 3 wird der Mischbehälter 1 über die Schwinge 21 und den Tragzapfen 6 wieder in die Stellung gemäß Fig. 2 abgesenkt, so daß der jetzt wieder unten befindliche erste Behälterteil 2 mit seinem Bodenauslauf 2a auf dem Fahrgestell 4 abgestellt werden kann. Nachdem die beiden Behälterteile 2 und 3 auseinandergekuppelt sind, wird der oben befindliche zweite Behälterteil 3 über die Schwinge 21 wieder angehoben, so daß der erste Behälterteil 2 ungehindert unter dem zweiten Behälterteil 3 herausgefahren und abtransportiert werden kann.After reaching the vertical, stable starting position according to FIG. 3, the mixing container 1 is lowered again into the position according to FIG. 2 via the rocker 21 and the supporting pin 6, so that the first container part 2, which is now at the bottom again, with its bottom outlet 2a on the chassis 4 can be turned off. After the two container parts 2 and 3 are coupled apart, the second container part 3 located above is raised again via the rocker 21, so that the first container part 2 is unhindered can be moved out under the second container part 3 and transported away.

Es versteht sich von selbst, daß - wie zum Teil bereits angedeutet - jede geeignete Ausführungsform als Schwenkantriebseinrichtung verwendet werden kann. So kann das Antriebszahnsegment auch durch ein anderes geeignetes Zahnrad gebildet sein und für den Drehantrieb dieses Antriebszahnsegmentes 12 (oder ein geeignetes anderes Zahnrad) können auch andere geeignete Schwenkantriebsorgane als ein Antriebszylinder verwendet werden, beispielsweise ein motorischer, mechanischer Antrieb.It goes without saying that - as already indicated in part - any suitable embodiment can be used as a swivel drive device. Thus, the drive toothed segment can also be formed by another suitable gearwheel, and other suitable swivel drive members, for example a motorized, mechanical drive, can also be used for the rotary drive of this drive toothed segment 12 (or a suitable other gearwheel).

Ferner sei noch darauf hingewiesen, daß in Fig. 6 zwar nur die eine Seite des Mischbehälters bzw. der Mischvorrichtung veranschaulicht ist, an der die Schwenkantriebseinrichtung 10 und die höhenverstellbare Schwinge 21 angeordnet sind, daß die diametral gegenüberliegende Seite des Mischbehälters 1 jedoch zumindest gleichartig höhenverstellbar gehaltert und gelagert ist, d. h. es kann auf der der Schwenkantriebseinrichtung 10 gegenüberliegenden Seite des Mischbehälters 1 nur eine einfache Schwinge vorgesehen sein, die synchron mit der Schwinge 21 höhenverstellbar ist. Da beim Anheben des zweiten Behälterteiles 3 das auf der ortsfesten zweiten Drehachse angeordnete Antriebszahnrad 14 festgesetzt ist, wird der horizontale Tragzapfen 6 des Mischbehälters 1 angehoben, und gleichzeitig wird dieser Tragzapfen 6 relativ zur Schwinge 21 gedreht, so daß sich eine Parallelverschiebung (nach oben oder unten) des zweiten Behälterteiles 3 ergibt, ohne daß dieser schwenkt. Hierdurch wird ein genaues Zusammenführen der beiden Behälterteile 2 und 3 begünstigt.Furthermore, it should also be pointed out that in FIG. 6 only one side of the mixing container or the mixing device, on which the swivel drive device 10 and the height-adjustable rocker 21 are arranged, is illustrated, but that the diametrically opposite side of the mixing container 1 is at least equally adjustable in height is mounted and mounted, ie only a simple rocker arm can be provided on the side of the mixing container 1 opposite the swivel drive device 10, which can be adjusted in height synchronously with the rocker arm 21. Since when the second container part 3 is raised, the drive gear 14 arranged on the stationary second axis of rotation is fixed, the horizontal support pin 6 of the mixing container 1 is raised, and at the same time this support pin 6 is rotated relative to the rocker 21, so that a Parallel displacement (up or down) of the second container part 3 results without this pivoting. This favors an accurate merging of the two container parts 2 and 3.

Claims (9)

  1. Mixing device containing
    a) a mixing vessel (1) which consists of two dish-shaped vessel parts (2, 3) which can be connected to one another, of which the first vessel part (2) is constructed so as to be transportable,
    b) a stationary support (5) on which the mixing vessel is mounted by means of the second vessel part (3) so that it is rotatable about a horizontal bearing axle (6) in such a way that it is pivotable out of an approximately vertical stable starting position, in which the second vessel part (3) forms the cover of the mixing vessel (1) and can be connected to the first vessel part (2), into an approximately vertical stable mixing position, in which the second vessel part (3) forms the base of the mixing vessel (1),
    c) a stirrer (7) which is arranged in the second vessel part (3) and connected to a drive motor (9), the shaft (8) of this stirrer being vertical in the mixing position,
    characterised in that
    d) a pivot drive arrangement (10) for the mixing vessel (1) is constructed in such a way that when the mixing vessel is being pivoted back into its vertical starting position it can be pivoted first of all into a level-balancing position which goes beyond this starting position by an adjustable angle (α) and from there into the stable starting position.
  2. Mixing device as claimed in claim 1, characterised in that the angle (α) which goes beyond the return pivot movement out of the vertical mixing position into the vertical starting position amounts to at least 10°.
  3. Mixing device as claimed in claim 1, characterised in that the Pivot drive arrangement (10) contains a toothed-wheel transmission gear.
  4. Mixing device as claimed in claim 3, characterised in that the toothed-wheel transmission gear has at least one drive gear segment (12) which is rotatable about a first shaft (13) mounted stationary on the support (5) and running parallel to the horizontal supporting axle (6) of the mixing vessel and is in toothed engagement with a drive gear (14) which is rotatable about a second shaft (15) also mounted stationary on the support (5) and running horizontally with respect to the bearing axle (6), the said drive gear (14) being in drive connection with a drive gear (16) arranged so as to be fixed against rotation on the bearing axle (6).
  5. Mixing device as claimed in claim 4, characterised in that the drive gear segment (12) is connected like a lever arm in the region of one peripheral section to one end (19a) of a piston rod (19) of a pivot drive cylinder (20) which is driven by a pressure medium and of which one end (20a) is retained on the stationary support (5).
  6. Mixing device as claimed in claim 4, characterised in that at least one further intermediate gear (17) is arranged between the drive gear (14) and the drive gear (16).
  7. Mixing device as claimed in claim 4, characterised in that the second vessel part (3) is arranged in the stationary support (5) so as to be adjustable in height over the bearing axle (6) of the mixing vessel.
  8. Mixing device as claimed in claim 7, characterised in that the bearing axle (6) of the mixing vessel is mounted with its drive gear (16) on the free end (21a) of a rocker (21), the other end (21b) of the rocker being held so as to be pivotable about the stationary second shaft (15) supporting the drive gear (14), and a height adjustment pivot drive (22) also engages on the free end (21a) of the rocker (21).
  9. Mixing device as claimed in claim 8, characterised in that the rocker (21) is constructed like a housing and simultaneously forms a kind of gearbox for the gear train from the drive gear (14) to the drive gear (16).
EP87113541A 1986-11-05 1987-09-16 Mixing device Expired - Lifetime EP0269799B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863637607 DE3637607A1 (en) 1986-11-05 1986-11-05 MIXING DEVICE
DE3637607 1986-11-05

Publications (2)

Publication Number Publication Date
EP0269799A1 EP0269799A1 (en) 1988-06-08
EP0269799B1 true EP0269799B1 (en) 1991-08-21

Family

ID=6313176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113541A Expired - Lifetime EP0269799B1 (en) 1986-11-05 1987-09-16 Mixing device

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EP (1) EP0269799B1 (en)
DE (2) DE3637607A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708075C1 (en) * 1997-02-28 1998-11-05 Thyssen Industrie Mixer for a powdery, semolina and / or granular substance

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3836216A1 (en) * 1988-10-24 1990-04-26 Herfeld Gmbh & Co Kg Dr METHOD AND DEVICE FOR MIXING POWDER-SHAPED TO GRAINED BULK GOODS
DE4335285A1 (en) * 1993-10-15 1995-04-20 Herfeld Gmbh & Co Kg Dr Mixing device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE552968C (en) * 1929-01-04 1932-06-20 Tacke K G F Gear for electric drive of rollers o.
GB960641A (en) * 1961-05-09 1964-06-10 Walter Hermann Herfeld Mixer
DE1557206A1 (en) * 1967-12-22 1970-03-12 Spangenberg Maschf G Device for swiveling the boom of mixing and dispersing machines
DE2110047C2 (en) * 1971-03-03 1983-01-20 Herfeld, Dipl.-Volksw. Dr., Friedrich Walter Adolf, 5982 Neuenrade Mixing device
DE2211968A1 (en) * 1972-03-11 1973-09-20 Behn Verpackung Erwin VALVE BAG FILLING MACHINE WITH BAG DISPENSING DEVICE
DE3433674A1 (en) * 1984-09-13 1986-03-20 Friedrich Walter Dr. 5982 Neuenrade Herfeld MIXING DEVICE
DE3433693A1 (en) * 1984-09-13 1986-03-20 Herfeld, Friedrich Walter, Dr., 5982 Neuenrade Mixing device
DE3512257A1 (en) * 1985-04-03 1986-10-09 Herfeld, Friedrich Walter, Dr., 5982 Neuenrade MIXING DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708075C1 (en) * 1997-02-28 1998-11-05 Thyssen Industrie Mixer for a powdery, semolina and / or granular substance

Also Published As

Publication number Publication date
EP0269799A1 (en) 1988-06-08
DE3637607A1 (en) 1988-05-11
DE3772338D1 (en) 1991-09-26

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