EP2821146B1 - Vorrichtung und Verfahren zum Rütteln und Zentrifugieren - Google Patents

Vorrichtung und Verfahren zum Rütteln und Zentrifugieren Download PDF

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Publication number
EP2821146B1
EP2821146B1 EP14173826.0A EP14173826A EP2821146B1 EP 2821146 B1 EP2821146 B1 EP 2821146B1 EP 14173826 A EP14173826 A EP 14173826A EP 2821146 B1 EP2821146 B1 EP 2821146B1
Authority
EP
European Patent Office
Prior art keywords
plate
container
shaking
centrifuging
axis
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.)
Active
Application number
EP14173826.0A
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English (en)
French (fr)
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EP2821146A1 (de
Inventor
Jean-Pierre Mélès
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Chopin Technologies
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Chopin Technologies
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Filing date
Publication date
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Publication of EP2821146A1 publication Critical patent/EP2821146A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/10—Control of the drive; Speed regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/20—Mixing the contents of independent containers, e.g. test tubes
    • B01F31/25—Mixing the contents of independent containers, e.g. test tubes the containers being submitted to a combination of movements other than within a horizontal plane, e.g. rectilinear and pivoting movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/50—Mixers with shaking, oscillating, or vibrating mechanisms with a receptacle submitted to a combination of movements, i.e. at least one vibratory or oscillatory movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/86—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with vibration of the receptacle or part of it
    • B01F31/861—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with vibration of the receptacle or part of it caused by hitting or striking the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
    • B01F35/453—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by moving them perpendicular to the plane of the opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7548—Discharge mechanisms characterised by the means for discharging the components from the mixer using tilting or pivoting means for emptying the mixing receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
    • B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
    • B04B5/0414—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes
    • B04B5/0421—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes pivotably mounted

Definitions

  • the present invention relates to the technical field of shaking and centrifugation devices of a content comprising a powdered material and a liquid product in a rigid container, for testing of the mixed contents, the container having a capacity of less than one liter and adapted to a quantity of content suitable for carrying out the test.
  • Tests involving samples with shaking and centrifugation stages are common. However, the shaking of the sample is often done initially, manually then the sample is placed in a device for their centrifugation. These manipulations of the container containing the sample are tedious and can cause handling errors that can distort the tests and / or require the test again.
  • AACC - Method 56-11 the "AACC - Method 56-11" standard developed by AACC International imposes specific conditions for shaking and centrifuging samples of flour mixtures and solvents in order to qualify the flour. In order to obtain convincing measures, these conditions are implemented by manual shaking followed by centrifugation, and notably impose a reduced waiting time between shaking and centrifugation.
  • the document US7204637 having features of the preamble of claim 1, is intended to provide a device that performs a centrifugation.
  • a single drive device rotates a tray supporting the container.
  • the plate rotates with a first angular velocity.
  • a plateau with radial stops is interfered with in the path of the tubes during centrifugation to generate shocks during the course thereof.
  • the plate rotates with a second angular velocity, greater than the first angular velocity.
  • This device also makes it possible to reduce the waiting time between the two centrifugation modes and to limit any errors in setting up the samples in the centrifuge.
  • shaking and centrifugation is carried out on samples for carrying out tests and tests which is simple to implement, without any risk of error between the parameters of the shaking mode and the parameters of the mode. centrifugation.
  • the modes of shaking and centrifugation can be alternated, quickly.
  • the shaking and centrifuging device further comprises a plate, assembled directly or indirectly to the frame which is a first plate, disposed near the plate which constitutes a second plate, the first plate being movable relative to the second plate. plateau, the first plate comprises a stop, the stop being arranged near and facing the container, the stop being fixedly mounted on the first plate, and the first drive member is adapted to move the second plate in translation relative to the first tray so as to cause a series of shocks between the container and the stop.
  • the cap and the support portion of the container comprise magnetic elements adapted to create a first retention force of the cap on the container.
  • the shaking device and centrifugation comprises a gripping member movable cap in translation in the shaking direction and adapted to move the cap between its open position and its closed position, and wherein the gripping member comprises magnetic elements.
  • the second plate comprises a notch and a connecting member disposed partially in the notch, said connecting member comprising a flange for receiving and holding the container, and wherein said connecting member and the container comprise magnetic elements adapted to create a second retention force of the container in the collar.
  • the modulus of the first retention force of the plug on the container is less than the modulus of the second retention force of the container in the collar.
  • the shaking and centrifuging device further comprises a third plate associated with the frame, the second plate being movable in translation along the axis of shaking (X) relative to the third plate to tilt the container relative to the shaking axis at an angle of between 0 ° and 60 °.
  • the shaking and centrifugation device comprises a fourth plate, comprising a receiving orifice of an injection member for injecting a liquid product into the container.
  • the injection member is provided with an anti-drip device.
  • the fourth plate is rotatable about the shaking axis between a position in which the receiving orifice of the injection member is opposite the filling opening. and a position in which the receiving orifice of the injection member is angularly offset relative to the filling opening.
  • the shaking and centrifugation device comprises a control arm of the injection member adapted to control the injection of the liquid product into the container.
  • the gripping member of the plug is carried by the fourth plate.
  • the second plate in the centrifugation mode, is associated with the second drive member when the second plate is rotated via a transmission shaft of the movement of the drive member, the splined shaft s' extending substantially along the shaking axis defining the central axis of the first plate.
  • the shaking and centrifugation device comprises a recovery channel arranged below the container.
  • the shaking device and centrifugation comprises a plurality of containers, the plurality of containers being, in position on the second plate, equi-angularly distributed around the shaking axis.
  • the capping and uncorking steps are carried out by means of a gripping member, and wherein the gripping member comprises magnetic means.
  • the method further comprises a step of angular indexing of the second plate.
  • the method further comprises a step of weighing the residual contents of the container after the step of emptying the liquid contents of the container into the recovery gutter.
  • the shaking and centrifugation device comprises a plurality of containers, and the containers are shaken, centrifuged, optionally filled with a liquid product, and / or emptied, and / or clogged, and / or outlets, and / or or weighed simultaneously.
  • the present invention may also relate to the field of devices comprising a movable platen carrying a container, the tray and the container having ferromagnetic elements so that the container is held on the second plate by a retention force created by the ferromagnetic elements.
  • the container may also include a plug for closing the container, said plug having ferromagnetic elements so that the plug is held in position on the container by a retention force created by the magnetic elements.
  • the same ferromagnetic elements of the container cooperate with both the tray and the cap. The magnetic force between the container and the stopper is less than that between the container and the tray.
  • the figure 1 illustrates a shaking device 10 according to the invention.
  • the shaking device 10 comprises a first plate 12.
  • the first plate 12 comprises a stop 14.
  • the shaking device further comprises a second plate 16.
  • the second plate 16 supports a container 18.
  • the first plate 12 and the second plate 16 form a substantially flat structure.
  • the first and / or second plate 12, 16 may be a wheel, or be a structure other than flat or circular.
  • the first plate 12 and the second plate 16 are mounted, each assembled to a frame 20.
  • the frame 20 of the shaking device 10 rests on a support S (which may be the floor or the table top, for example) .
  • the support S defines a plane. Subsequently, the description is made with reference to the case where the first plate 12 and the second plate 16 are arranged substantially horizontally, orthogonal to a vertical axis. But it should be understood that the device 10 may, when not in use, be placed differently.
  • vertical direction means any direction parallel to or substantially parallel to the normal direction to the plane of the support S. It is also necessary to understand by "horizontal” direction any parallel direction - or substantially parallel - to the plane of the support S and orthogonal - or substantially orthogonal - to the vertical direction.
  • the first plate 12 is a structure of metal frame type assembled to the frame 20, and the second plate 16 is in the form of a carousel.
  • the second plate 16 as represented on the figure 1 is, however, substantially circular in outline of diameter D.
  • the second plate 16 may have other shapes.
  • the second plate 16 may be of square contour, have a variable thickness or be asymmetrical.
  • the second plate 16 is substantially horizontal.
  • the second plate 16 is centered around an axis subsequently called the shaking axis X.
  • the shaking axis X forms the central axis of the second plate 16. In this case, the shaking axis X extends vertically.
  • the second plate 16 has a lower face 22 oriented towards the support S and an upper face 24 opposite to said lower face 22.
  • the second plate 16 has at its center an opening 26 having the main axis axis shaking X. In the orifice 26 opening extends, in the direction of shaking X, a shaft 28 associated with the frame 20.
  • the shaft 28 can be fixed relative to the frame 20 or still rotatable relative to the frame 20 around the shaking axis X.
  • the shaft 28 is splined and the splines of the shaft 28 cooperate with a complementary shape provided on the second plate 16 to avoid, among other things, any involuntary rotation of the second plate 16 around the shaft 28 or to achieve a transmission of a rotational movement of the shaft 28 around the shaking axis X to the second plate 16.
  • the shaft can be provided with a housing a adapted to receive a key, or can be planned smooth.
  • the second plate 16 is slidably mounted on the shaft 28 along the axis of shaking X.
  • a drive system comprising a drive member 30 and for example a crank connecting rod system 32 (shown in FIG. figure 8 ) drives in translation the second plate 16 along the axis of shaking X.
  • the drive member 30 can be secured to the frame 20.
  • the drive member 30 is fixed to the second plate, for example by a system of magnetic fixation.
  • a fork 34 with several branches (for example three) is in this case fixed directly on the crank of the connecting rod-crank system 32 to ensure contact at several points (each of the branches of the fork 34 is in contact with the lower face 22 of the second plate 16).
  • the fork 34 further comprises magnetic suction cups on a part or all of its branches to prevent the second plate 16 from being disassembled from the fork 34 (and consequently to prevent the separation of the second plate 16 and the body training 30).
  • the magnetic suction cups prevent any loss of contact between the second plate 16 and the fork 34 and allow precise translation drive of the second plate 16 along the shaking axis X.
  • the fork 34 may be a circular piece or rectangular.
  • the second plate 16 is movable in translation between a proximal position (also called the lower position), in which the lower face 22 of the second plate 16 is at a first distance d1 from the support S, the distance d1 being measured along the axis of shaking. X, and a distal position (also called high position), wherein the lower face 22 of the second plate 16 is at a second distance d2 (not shown) of the support S.
  • the distance d2 is greater than the distance d1.
  • the driving member 30 moves, via the crank-rod system 32, the second plate 16 in translation along the shaking axis X in a first shaking direction X1, when the second plate 16 is moved from the proximal position towards the distal position, and in a second direction of shaking X2, opposite the first direction X1.
  • the translational movement of the second plate 16 is alternated and can be repeated periodically.
  • the proximal and distal positions are fixed positions.
  • the second plate 16 moves between two extreme positions, and as soon as one of these extreme positions is reached, the second plate 16 moves in opposite directions.
  • the extreme positions are constant.
  • the second plate 16 With each reciprocating movement, the second plate 16 would not necessarily return to its previous proximal (distal) position, but would adopt a new proximal (respectively distal) position, in the vicinity of the direction. proximal (respectively distal) previous.
  • a different system of the connecting rod-crank system 32 can be provided for the alternating displacement of the second plate 16.
  • the driving member could be a piezoelectric motor including the motor shaft it would be assembled directly to the second plate 16 to drive it in translation in the first direction X1 and then in the second direction X2.
  • the second plate 16 has a notch 36. As shown in FIG. figure 1 , the second plate 16 has a plurality of notches 36, in this case the second plate 16 has eight notches 36. Each notch 36 is associated with a container 18 adapted to contain a content comprising a material in powder form and a liquid product.
  • the number of indentations 36 depends on the number of shaking containers 18 to be provided and may be larger or smaller. For example the number of indentations can vary between one and sixteen.
  • the notches 36 are equi-distributed around the shaking axis X at the periphery of the second plate 16.
  • the notches 36 each form parts of a circle of diameter d smaller than the diameter D of the second plate, and of center on or near the periphery of the second plate 16.
  • the notches 36 cross the thickness e of the second plate 16 and are open in the radial direction of the second plate 16 and towards the outside of the second plate 16.
  • the notches 36 have substantially similar shapes, however in embodiments each notch 36 may have a different shape and / or size.
  • the size of the notches 36 depends on the container 18.
  • the notches 36 form a passage for the container 18 which is assembled to the second plate 16, and the passage formed by the notch 36 is large enough to allow a rotation of the container 18 relative to the second plate 16 about a plateau axis A which will be described later.
  • the size of the shaker 10 depends on the number of containers 18 provided and the size of the containers 18.
  • the numerical dimensions given in the following description are possible dimensions for a shaking device 10 comprising eight containers 18 and are in no way limiting.
  • the container 18 is cylindrical and is of the test tube or test tube type.
  • the container 18 comprises a rigid hollow body 37 of circular section of diameter dr (not shown) substantially constant and extends longitudinally along a container axis Xr between a first end 38 and a second end 40.
  • the container 18 is elongated and defines an interior volume.
  • the container 18 has a capacity, that is to say an internal volume, less than or equal to one liter and, more specifically, a suitable capacity, in particular just adapted to a quantity of content suitable for carrying out the test. In this case the container 18 has a capacity of about 50 milliliters.
  • the length of the container L measured along the container axis Xr is of the order of 120 millimeters and the diameter dr of the container is of the order of 30 millimeters.
  • the container 18 defines at its second end 40 a filling opening 42 to partially fill the container 18 with a content comprising a powdery material and a liquid product.
  • the container 18 is adapted to contain a content comprising a material in powder form and a clean liquid product for testing or measurement.
  • the shaker 10 ensures homogenization of the powdered material and the liquid product for the purpose of carrying out tests or measurements, for example measurements of the absorption capacity of the liquid product by the powder material. However, in alternative embodiments, other types of measurements can be made.
  • the contents of the container 18 may vary depending on the product sample to be studied. Also, for example, the container 18 may contain a plurality of liquid products.
  • the first end 38 of the container is closed, for example by a conical portion.
  • the first end 38 is a half-spherical portion.
  • the container 18 is rotatable relative to the second plate 16 about a plateau axis A.
  • the plate axis A is fixed relative to the second plate 16.
  • the plate axis A is further orthogonal to the shake axis X.
  • the tray axis A is substantially horizontal.
  • the tray axis A is tangent to a circle centered on the shaking axis X.
  • the tray axis A is located in the vicinity of one of the ends 38, 40 of the container 18.
  • the tray axis A passes through an extreme part of the container 18. As illustrated on the figure 1 , the tray axis A passes through the end portion of the container 18 in the vicinity of the second end 40, and is spaced from the first end 38.
  • the tray axis A may be parallel to a diameter of the container 18.
  • the container 18 has, at its second end, a support portion Sp.
  • the support portion Sp forms a "neck" of the container 18.
  • the support portion Sp extends radially outwardly of the container 18 and has a larger diameter at the diameter dr of the hollow body 37 of the container 18.
  • the container 18 is assembled to the second plate 16 by a connecting member 44 (also called nacelle), illustrated on the figures 1 and 2 .
  • the container 18 is removably assembled to the second plate 16.
  • the connecting member 44 forms an intermediate element making it possible in particular to support the container 18 and facilitating the assembly of the container 18 to the second plate 16.
  • the connecting member 44 facilitates also the separation of the container 18 and the second plate 16.
  • the container 18 may be provided directly assembled to the second plate 16, without intermediate element.
  • the connecting member 44 can adopt the total or partial shape of a thimble and thus directly receive the container 18.
  • the connecting member 44 is, in this case, non-removably assembled to the second plate 16.
  • the connecting member 44 is rotatable about the axis of plate A.
  • the connecting member 44 has a flange 46.
  • the flange 46 supports the container 18.
  • the flange 46 is annular. However, the flange 46 may have in a variant embodiment a substantially different shape.
  • the collar 46 defines an opening 48.
  • the flange 46 has an upper face 50 oriented as the upper face 24 of the second plate 16 and a lower face 52 oriented as the lower face 22 of the second plate 16.
  • the connecting member 44 comprises on the upper face 50 of the collar 46 a first projection 54 and a second projection 56 defining a first bearing 58 and a second bearing 60 on either side of the opening 48.
  • the connecting member 44 further comprises a first Trunnion 62 and a second trunnion 64.
  • the first trunnion 62 and the second trunnion 64 each have a first end 66, 68 and a second end 70, 72.
  • the first end 66 of the first trunnion 62 is held in the first bearing 58 and the first end 68 of the second trunnion 64 is held in the second bearing 60.
  • the second end 70 of the first trunnion 62 and the second end 72 of the second trunnion 64 are fixed on the second plate 16.
  • the second end 70 of the first pin 62 and the second end 74 of the second pin 64 are fixed respectively in a first and a second housing 74, 76 provided on the upper face 24 of the second plate 16
  • the first trunnion 62 and the second trunnion 64 are coaxial and serve to guide the connecting member 44 in rotation relative to the second plate 16 around the axis of plate A.
  • the first pin 62 and the second pin 64 extend along the axis of plate A.
  • the first and second pins 62, 64 may for example be made of a metallic material while the first and second projections 54, 56 may be made in a plastic material. In an alternative embodiment, a single pin could be provided. Of course, a variant could be to invert the journals and bearings (or rings) in that the pins (or axes) could be integral with the projections 54 and 56; the bearings then being secured to the plate 16 by additional supports or flanges.
  • the upper face 50 of the flange 46 of the connecting member 44 is substantially parallel to the upper face 24 of the second plate 16
  • the upper face 50 of the flange is not in line with the upper face 24 of the second plate 16 but recessed with respect to the upper face of the second plate in the direction of the support S.
  • the flange 46 is adapted and intended to receive and hold the container 18.
  • the container 18 is received in and carried by the flange.
  • the dimensions of the flange 46 are dependent on the dimensions of the container 18.
  • An operator for example, assembles the container 18 to the flange 46 by first inserting the first end 38 of the container 18 in the opening 48 of the flange 46 The operator then translates the hollow body 37 of the container 18 into the opening 48 of the flange 46.
  • the opening 48 of the flange 46 has a dimension slightly greater than the dimension of the hollow body 37 to allow translation and so Effectively placing the container 18.
  • the container 18 abuts against the flange near its second end 40.
  • the support portion Sp of the container 18 whose diameter is further greater than the diameter of the opening 48 of the flange 46 abuts against the upper face 50 of the flange 46.
  • the container 18 is thus held in and supported by the flange 46.
  • the container 18 can easily be put into place. n position on the connecting member 44 and also easily be removed from the connecting member 44.
  • the flange 46 and the support portion Sp of the container 18 may comprise magnetic elements that create a first retention force between the container 18 and the annular flange 46.
  • the first retention force secures the holding of the container 18 in the flange .
  • An alternation north and south pole magnetic elements may allow, among other things, to position the container 18 always similarly in the collar 46 regardless of its angle of insertion into the flange 46.
  • the container 18 comprises a stopper 80 adapted to close the filling opening 42.
  • the stopper 80 may, for example, be held in closed position on the receptacle 18 by means of magnetic elements creating a force of attraction between the cap and the support portion of the container 18 for example.
  • magnets may be provided angularly distributed on the support portion of the container 18 and / or on the plug.
  • the cap is screwed onto the container 18.
  • the magnetic elements allow faster closure.
  • the retention force of the plug 80 on the container 18 is preferably less than the retention force of the container 18 on the second plate 16.
  • the container 18 could have no plug, and the filling opening would be kept open.
  • the amount in the container 18 should be significantly lower than the capacity of the container 18, for example.
  • the shaking device should not allow the filling opening to be oriented towards the support S.
  • the upper face 50 of the flange of the connecting member may be substantially parallel to the upper face 24 of the second plate 16 and the container axis 18 may be substantially vertical. Positioning the container 18 in the connecting member 44 and / or removing the container 18 from the connecting member 44 is then facilitated.
  • the second plate 16 When the second plate 16 is reciprocated in translation along the shaking axis X (also called the driving movement), it can cause the container 18 to rotate about the plate axis A. (still called led movement).
  • the figure 1 illustrates, by way of example, containers 18 in different positions.
  • the configuration of the containers of the figure 1 is not a usual operating configuration of the shaker device, but illustrates the independence of each of the containers with each other.
  • More specifically figure 1 illustrates eight containers 18 in two different positions. Two of the eight containers 18 shown are substantially vertical, while the other six containers are each resting against a stop 14. As illustrated in FIG. figure 1 the position of a container 18 is independent of the position of the other containers 18.
  • the device can be provided for up to 16 locations for containers, there is nothing to prevent the device with a number of tubes less than the number of locations.
  • the second plate 16 further comprises a second stop 82 fixed on its upper face 24.
  • the second stop 82 constitutes a means of limiting the rotation of the connecting member 44 around the plateau axis A, and therefore limiting pivoting about the tray axis A of the container 18.
  • the second stop 82 prevents a complete 360 ° rotation of the connecting member 44 about the tray axis A.
  • the second stop 82 extends opposite the notch 36.
  • the second stop 82 comprises a bar 84, for example a plastic which extends in a direction of stop Da which is parallel or inclined at an angle less than 90 ° from the direction of the plate axis A.
  • the stop direction Da is not confused with the direction of the axis of plate A.
  • the second stop 82 extends opposite the upper face 50 of the collar 46.
  • the second stop 82 does not obstruct or interfere with the opening 48 46. In other words, the second stop 82 does not prevent the insertion or removal of the container 18 from the opening 48.
  • the second stop 82 is, as illustrated assembled to the second plate 16 by screws.
  • the second stop 82 is arranged between the plate axis A and the orifice 26 of the second plate 16. Of course, these stops may take different shapes and materials and have another method of attachment.
  • the second stop 82 of a first notch 36 and a second notch 36 adjacent to the first notch is formed by the same piece having a first bar 84 and a second bar coming from material.
  • the first bar 84 forms the second stop of the first notch
  • the second bar forms the second stop of the second notch.
  • the stroke limitation of the connecting member can be achieved by other means.
  • the function of limiting the pivoting around the tray axis A of the container could be achieved by a rotational locking provided in the first and second bearings 58, 60 of the first and second journals 62, 64.
  • the stroke of the container 18 is also limited by the abutment 14 of the first plate 12.
  • the first plate 12 is a metal structure (or any other material) defining an interior space E.
  • the first plate 12 is assembled to the frame 20, as previously described.
  • the first plate 12 is displaced relative to the chassis 20 in translation along an axis parallel to the shaking axis X via a motor system, for example of the type comprising a motor and a wheel and worm system.
  • the first plate 12 is assembled to the frame 20 by means of two wheel and worm gear systems (only one of which is shown in FIG. figure 1 ) which are each arranged on either side of the first plate and diametrically opposite one another.
  • the worm extends longitudinally between two frames of the frame 20.
  • the first plate 12 can be fixedly assembled to the frame 20, for example by welding.
  • the first plate 12 may be movable relative to the frame 20 along an axis not coaxial with the shaking axis X.
  • the first plate 12 arranged movable relative to the frame 20 is adapted to be moved between a first position, hereinafter referred to as the operating position, and a second position subsequently called the rest position and possibly a third so-called emptying position.
  • the abutment 14 of the first plate 12 is arranged in such a way that the container 18 (and more specifically a portion of the container 18, for example a portion of the hollow body 37 of the container 18) can be supported and / or contact of said stop 14, forming a non-zero angle with the vertical.
  • the abutment 14 of the first plate 12 is shifted radially and axially (along the axis of shaking X) of the container 18, so that the container 18 can not bear against the stop 14 or even come into contact with said stop 14.
  • the first plate 12 fixed directly in the "operating" position namely the abutment of the first plate 12 is arranged such that way that the container 18 can be in support and / or in contact with said stopper 14.
  • the first plate 12 has a main axis which is coaxial with the shaking axis X.
  • the first plate 12 is for example made from a metal strip which is folded and closed on itself with its welded abutting ends. one to another so as to form the inner space E.
  • the first plate 12 may have a different shape.
  • the first plate 12 In the rest position, the first plate 12 is located between the support S and the second plate 16 in the axial direction. In said operating position, the first plate 12 may for example be located above the second plate 16. However, these relative positions of the first and second plates 12, 16 in the operating position are dependent in particular on the length L of the container 18 and for example, in the operating position, the first plate 12 may be provided slightly below the second plate 16.
  • the first plate 12 has an inner surface 86 facing the inner space E and an outer surface 88 opposite the inner surface 86.
  • the shape and dimensions of the first plate 12 depend on the number of containers 18 provided on the shaker 10 and the size of these containers 18.
  • the first plate has a substantially octagonal shape and at each edge of the octagon is associated a stop 14 and a container 18, and the diameter of the circle inscribed in the octagon formed by the first plate is concentric to the circle of diameter D delimited by the second plateau.
  • the abutment 14 of the first plate 12 is substantially opposite the container 18 and forms a bearing surface and a collision surface of the container 18.
  • the stop 14 also provides a function of limiting the stroke of the container 18 around the container. the plateau axis A.
  • the abutment 14 is a folded sheet comprising a first portion 90, a second portion 92 and a third flat portion 94.
  • the first portion 90 is a fixing portion of the stop 14 on the first plate 12.
  • the first portion 90 of the stop 14 is fixed on the outer surface 88 of the first plate 12.
  • the second portion 92 of the abutment extends substantially towards the interior space E defined by the first plate.
  • the third portion 94 of the abutment 14 extends substantially at an angle of the order of 45 ° relative to the second portion 92 and towards the second plate 16.
  • the third portion 94 of the abutment 82 comprises a ridge which forms an abutment surface 96 of the container 18, when the container 18 is in mounted (or assembled) position on the second plate 16.
  • the support of the container 18 on the abutment surface 96 is shown in more detail on the figure 3 .
  • the relative position of the first plate 12 with respect to the second plate 16, and consequently the position of the abutment surface 96 with respect to the hollow body 37 of the container 18 is such that, in the absence of any relative movement of the second plate 16 relative to the first plate 12, the container axis 18 is inclined relative to the vertical direction.
  • the container axis Xr forms an angle of between 15 ° and 70 °, or of the order of 43 ° with the horizontal direction
  • the first end 38 of the container 18 is above the second end 40 of the container 18.
  • the filling opening 42 is oriented towards the support S.
  • the point of contact Pc between the abutment surface 96 and the hollow body 37 of the container 18 when the first plate 12 is in the operating position is for example located 40 millimeters from the second end 40 of the container 18.
  • the shaking device 10 may optionally comprise a third plate 98 (shown in center lines by transparency on the figure 1 ) whose function is to tilt the container 18.
  • the third plate 98 allows the container 18 to tilt relative to the vertical direction so that the first plate, and more precisely the abutment surface 96 of the first plate 12 can come in contact with and in support of the container 18.
  • the third plate 98 is fixedly assembled relative to the frame 20 of the device. It may, however, be able to rotate in particular around an axis substantially coaxial with the shaking axis X, in particular for facilitate the cleaning of the device.
  • the abutment 14 is at a distance from the container 18.
  • the container 18 does not bear against the abutment 14 and, being subjected to no external stress, the container axis Xr is vertical.
  • the second plate 16 By moving from its distal position to its proximal position, the second plate 16 brings the container 18 into contact with the third plate 98 which causes the inclination of the container 18, for example at an angle of the order of 45 ° relative to the vertical direction, the first end of the container 18 being oriented towards the support S and so that the first plate 12, during its translation from its rest position to its operating position can come into contact with the container 18 and drive the container 18 to the operating position of the first plate 12.
  • the implementation of the shaking device 10 comprises for example the following steps.
  • the first plate 12 is in its rest position, the second plate 16 is in its distal position and the axis of the container Xr is substantially vertical and partially filled each of the containers 18 with a product to be shaken, by for example a mixture of a material in powder form with a liquid product, or several liquid products.
  • the shaker 10 comprises a third plate 98
  • the second plate 16 is moved so that the containers come into contact with the plate 98 whose shape makes it possible to incline the container axis Xr then the first plate 12 is moved in translation along the axis of shaking X in the direction X1 into the operating position of the first plate 12.
  • the drive member 30 is actuated and moves the second plate 16 in translation along the shaking axis X in the first direction X1 to the distal position.
  • the figure 4a illustrates the second plate 16 in distal position.
  • the second plate 16 makes a stroke of between 10 millimeters and 50 millimeters, preferably of the order of 35 millimeters on the shaft in the first direction X1 to reach the distal position.
  • the angle between the container axis Xr and the shaking axis X is substantially orthogonal.
  • the driver 30 moves the second plate 16 in the second direction X2 towards the proximal direction before moving the second plate 16 again distally.
  • the second plate 16 thus makes a periodic and alternating displacement, or in other words back and forth in the first direction X1 and the second direction X2.
  • the displacement of the second plate 16 in translation causes the displacement of the part of the container 18 which is directly assembled via the connecting member 44.
  • the container 18 pivots about its fulcrum on the abutment surface 96, and more particularly around an axis (hereinafter called abutment axis Xb) defined by the zone of contact between the hollow body 37 of the container 18 and the abutment surface, periodically in one direction and then in an opposite direction.
  • the contact between the container 18 and the stop 14 always takes place when the displacement of the second plate 16 is sufficiently slow.
  • the pivoting around the stop axis Xb then has the same frequency as the translational movement of the second plate 16.
  • the hollow body 37 of the container 18 comes into contact with the abutment 14. More specifically, an impact or a collision takes place between the container 18 and the stop 14.
  • the shock is elastic or rather quasi-elastic and causes a rebound of the container 18 after contact with the stop 14.
  • the alternating and repeated movement of the second plate 16 between its distal position and its proximal position, and the kinetic energy released during the collision between the container 18 and the abutment 14 participate in generating a series of collisions between the container 18 and the second plate 16.
  • the amplitude of rotation of the container 18 is limited on the one hand by the stop 14 on the first plate, and on the other hand by the second stop 82 provided on the second plate 16.
  • the amplitude of rotation is for example less than 120 °, for example it is of the order of 60 °.
  • the container axis 18 has a minimum angle of -7 ° to the horizontal direction and a maximum angle of 53 ° to the horizontal direction. The maximum angle is reached when the flange 46 of the connecting member 44 abuts on the second stop 82.
  • the second stop 82 is capable of generating a second series of shocks (also called high shocks) which participate in the random and irregular movement of the container 18 between the two extreme positions of the container pivoting about the axis of plate A.
  • the container 18 is projected to rotate upwards (first direction X1) to abut on the second stop 82.
  • the container 18 is projected downwards (second direction X2) by contact with the second stop 82 and / or by gravity and pivots about the tray axis A down (X2 direction) and the movement of the second plate 16.
  • the container 18 abuts against the stop 14, with a shock.
  • the combination of the two movements (translation of the second plate and therefore of the second end (or more precisely of the end portion in the vicinity of the second end) of the container 18 and rotation around the axis plate A of the end portion in the vicinity of the second end 40 causes the shaking with a collision at the end of stroke against the stop 14.
  • the product contained in the container 18 moves inside the container 18 over substantially the entire length of the container 18 and is driven by the irregular movement of the container 18 between the first end 38 and the second end 40.
  • the volume of the product contained and / or its density can also participate in the frequency "offset" and the irregularity of shaking by displacement of the center of mass of the container 18 in time.
  • the second plate 16 may be provided rotatably around the shaking axis X and be moved by the drive member about the shaking axis X in an alternating and periodic movement in a first direction of rotation then in a second direction of rotation so as to cause a displacement of the container relative to the second plate, and a series of shocks between the container 18 and the stop 14 of the first plate 12 to achieve from the periodic movement and alternating the second plate 16 an aperiodic shaking of the container.
  • a manual shaking is thus reproduced by an automated shaking device that is simple to implement and makes it possible to carry out series tests.
  • controllers can be provided for remotely controlling one or more shaking devices 10 such as those described in FIG. a given process with for example a precise timer and an alternation of resting phases or phases of agitation (or shaking).
  • controllers can program shake cycles at specific frequencies and for specified durations.
  • the shaking device 10 may, for example, further comprise a gutter arranged below the container 18 and adapted to receive the liquid that was contained in the container 18.
  • the shaking device 10 may comprise a plurality of receptacles 18 similarly arranged, each of the receptacles 18 being associated with a stopper 14.
  • the receptacles 18, as illustrated in FIG. figure 1 all have the same shape. However, in alternative embodiments the containers 18 may have different shapes. In addition, the distance between the stop 14 and the container 18 may for example vary.
  • the shaker 10 may be used for shaking a solvent and a flour sample to measure the solvent absorption capacity of the flour as in "AACC - Method 56-11" previously mentioned and shake a quantity of 25 grams of solvent and 5 grams of test flour.
  • the shaking is done by shaking sequences of 5 seconds every 5 minutes for 20 minutes after a first shaking step of 5 seconds. Of course, these times can be changed.
  • the present shaking device 10 is not limited to this application and can be implemented in other shaking methods of the same type.
  • the shaking device described above may be associated with a centrifugation device to form a shaking and centrifuging device 10.
  • the shaking and centrifuging device 10 comprises, as previously mentioned, a drive system with a drive member 30 which is in fact a first drive member 30.
  • the drive system comprises a second drive member. 100 training.
  • the second drive member 100 is adapted to rotate the second plate 16 relative to the frame 20.
  • the second drive member 100 comprises for example a motor as a brushless motor (called "brushless" in English).
  • an asynchronous motor can be used.
  • the motor drives, through the shaft 28 which is grooved, the second plate 16 in rotation around a Y axis of centrifugation which coincides with the axis of the shaft 28 and consequently with the axis X.
  • the shaft 28 is then rotatable relative to the frame 20 about the shaking axis X.
  • the splines of the shaft 28 cooperate with a complementary shape provided on the second plate 16 to realize a transmission.
  • the rotational movement could be transmitted by a pulley / belt or gear system.
  • the grooves could be replaced by a smooth shaft with keying for example.
  • the shaker and centrifuge device 10 further comprises a selection system 102 adapted to alternately switch from a shaking mode (already described above) to a centrifugation mode, in which an acceleration is printed to the contents of the container 18 thanks to the rotational movement of the second plate 16 relative to the frame 20.
  • the second plate 16 is associated with the first drive member 30 and disassociated from the second drive member 100.
  • the second plate 16 is associated with the second drive member 100 and disassociated from the first drive member 30.
  • the first drive member 30 is fixed to the plate, for example by means of the magnetic suction cups described above which avoids the separation of the second plate 16 and the first member
  • the second driving member 100 is disassociated from the second plate 16 in that it does not cause the second plate 16 to rotate about the centrifugation axis Y
  • the shaft 28 is secured to the frame 20. In the example presented above, it is sufficient not to electrically supply the motor of the second drive member 100.
  • the second plate 16 is disassembled from the fork 34. There is no longer any contact between the branches of the fork and the lower face 22 of the second plate 16.
  • the shaft 28, grooved is released from the frame and fixed to the second plate 16. The second plate 16 is rotated about the axis of centrifugation Y by the shaft 28, fluted.
  • the selection system 102 comprises a processor comprising circuits suitable for controlling together the different members in the centrifugation mode, for controlling together the different members in the shaking mode and a switch operable to switch from one mode to another.
  • the switch is either operable by a user, or automatically according to a preprogrammed sequence stored in memory.
  • the shaker and centrifuge device further comprises a fourth plate 104.
  • the fourth plate 104 is substantially circular in outline. However, in alternative embodiments, the fourth plate 104 may have other shapes.
  • the first, third and fourth trays are carried by the frame 20 without cooperating with the spline shaft 28.
  • the rotation of the shaft 28, grooved, do not cause the other trays rotating.
  • the fourth plate 104 is substantially horizontal.
  • the fourth plate 104 is for example centered around the shaking axis X.
  • the fourth plate 104 has a lower face 106 oriented towards the support S and the second plate 16.
  • the fourth plate 104 has an upper face 108, opposite to said lower face 106.
  • the fourth plate 104 is directly connected to the frame 20.
  • the fourth plate 104 and the second plate 16 are rotatable relative to each other.
  • the fourth plate is assembled to the frame 20 in particular by means of a system of the wheel and worm type whose axis of the screw substantially defines the main axis of the fourth plate and is substantially coaxial with the shaking axis X.
  • the fourth plate 104 is consequently movable in translation relative to the frame 20.
  • the fourth plate 104 has an orifice 110. As shown in FIG. figure 1 , the fourth plate 104 has a plurality of orifices 110 passing therethrough and optionally provided with elements 112 obstructing the orifices 110. More specifically, the fourth plate 104 has the same number of openings 110 as the number of notches 36 provided on the second plateau. Each orifice 110 can be moved facing the filling opening 42 of the receptacle 18 when the receptacle 18 is in the mounted position on the second plate 16.
  • Each orifice 110 is adapted and intended to receive and hold an injection member 114 (see FIG. figure 6E ).
  • the injection member 114 is received in the orifice 110 and is carried by the periphery of the orifice.
  • the injection member 114 is intended to contain a liquid product L, for example a solvent, adapted to be injected into the container 18.
  • the injection member 114 is for example of the syringe type having a substantially cylindrical reservoir 116 adapted to receive the liquid product L to be injected, and a piston 118 movable in translation between a high position and a low end position, by example inside the tank 116, to empty said tank of its contents.
  • the reservoir 116 has for example a capacity of the order of 30 milliliters (ml).
  • the piston 118 is adapted to be actuated, in particular to inject the liquid product L contained in the reservoir 116, by a control arm 120.
  • the control arm 120 is displaced in translation relative to the fourth plate 104 between a high position, in which it is remote from the piston 118 and a low position in which it forces the piston 118 in its low position.
  • the control arm 120 is displaced in translation relative to the fourth plate 104 along an axis coaxial with the shaking axis X via a motor system, for example of the type comprising a motor and a wheel and worm system.
  • the injection member 114 may comprise, as visible on the figure 6E An anti-drip device 119.
  • the anti-drip device 119 comprises a return element, such as a return spring, of the piston 118.
  • the return spring as shown in FIG. figure 6E is wound around the piston 118.
  • the return spring is arranged outside the reservoir 116.
  • the return spring is not in direct contact with the liquid product L present in the reservoir 116.
  • the return spring is arranged between an outer collar 121 of the reservoir 116 and an actuating portion 123 of the piston 118.
  • the return spring comprises a first end 119a and a second end 119b, the first end 119a of the spring of recall resting on the outer flange 121 and the second end 119b of the return spring bearing on the actuating portion 123.
  • the return spring allows in this case to return the piston 118 from its low end position to an intermediate.
  • the intermediate position is between the low position and a high position.
  • the return spring exerts on the piston a force so as to bring the piston to its intermediate position.
  • the return spring is dimensioned such that the force applied by the actuating arm 120 on the piston 118 (and more precisely on the actuating portion 123 of the piston 118) is greater than the force applied by the return spring on the piston.
  • the actuating arm 120 moves the piston 118 from its upper position to its low position without constraints.
  • control arms 120 there are as many control arms 120 as injection members 114 to be controlled and containers 18 to be filled.
  • the control arm 120 is in this case assembled to the frame 20, possibly rotatable relative to the frame 20 on an axis coaxial with the shaking axis X and in the extension (upwards) of the shaft 28, fluted.
  • the anti-drip device of the injection member is particularly important to prevent residues from falling randomly onto components of the shaker and centrifuge device 10 and pollute and / or damage the device.
  • a gripping member 122 of the plugs is also provided on the shaking and centrifuging device 10.
  • the gripping member 122 of the plugs 80 is for example an electromagnetic sucker adapted to emit a magnetic field and to create a force of attraction of the plugs 80 whose module is smaller than the modulus of the retention force F1 (cf. Figure 6C ) of the container 18 on the collar 46 and greater than the modulus of the retention force F2 (cf. Figure 6C ) of the cap 80 on the container 18 so as to drive the cap 80 away from the container without moving the body of the container 18 of the flange 46.
  • the shaking and centrifuging device 10 may also comprise a channel 124 (illustrated in center lines on the figure 1 ), located in particular below the container 18 and adapted to receive a liquid content of the container 18 when the latter is in an inclined position relative to the shaking axis X, with the filling opening 42 oriented towards the support S .
  • a channel 124 illustrated in center lines on the figure 1 , located in particular below the container 18 and adapted to receive a liquid content of the container 18 when the latter is in an inclined position relative to the shaking axis X, with the filling opening 42 oriented towards the support S .
  • Gutter 124 is for example substantially circular contour, centered on the shaking axis X and substantially horizontal. However, in alternative embodiments, the trough 124 may have other shapes. In this case, the gutter is fixed relative to the frame 20, it is directly assembled to the frame 20, but could be rotatable.
  • the dimensions of the gutter 124 are calculated according to the dimensions of the container 18 and the second plate 16 so that the gutter receives all the liquid content emptied from the container.
  • FIGS. 6A to 6O schematically illustrates possible steps of shaking and centrifugation of a container 18 for performing a test.
  • a shaking and centrifuging device 10 comprising, from bottom to top, the channel 124, the first plate 12, the third plate 98, the second plate 16, the fourth plate 104 and the arm of 120.
  • the first plate 12, the third plate 98, the second plate 16, the fourth plate 104 and the control arm 120 are as shown in FIG. Figure 6A in a so-called rest or initial position.
  • a first step illustrated Figure 6B the container 18, for example already pre-filled with a material in powder form, and in the plugged state (the cap 80 of the container 18 is retained by a retention force F2 created by the magnetic elements located in the cap 80 and in the support portion of the container 18).
  • the second plate 16 is rotated in rotation with respect to the fourth plate 104 so as to face the gripping member 122 (carried by the fourth plate 104) and the container 18, such as illustrated on the Figure 6C .
  • an angular position indexer 126 shown in FIG. figure 7
  • the fourth plate 104 can be moved in rotation with respect to the second plate 12 so as to bring the gripping member 122 and the container 18 into register.
  • the fourth plate 104 is displaced in translation with respect to the frame 20 and relative to the second plate 16 along the shaking axis X so as to bring the gripping member 122 into contact with magnetic elements. and the cap 80.
  • An attractive force F3 whose modulus is greater than the retention force F2 of the cap on the container but less than the retention force F1 of the container 18 on the flange 46 is created.
  • the gripping member 122 "unclogs" the container 18 by attraction of the cap 80 at a distance from the support portion of the container 18, as shown in FIG. Figure 6D , by moving the fourth plate 104 carrying the plugs 80 in the opposite direction (here upwards).
  • a fourth step the second plate 16 is again rotated relative to the fourth plate 104 so as to face the orifice 110, in which the injection member 114 with a piston 118 in the up position has been previously arranged, and the filling orifice 42 of the container 18, as illustrated in FIG. figure 6E .
  • a fifth step illustrated on the figure 6F the control arm 120 is moved in translation along the shaking axis of its upper position, in which it is remote from the piston 118 towards its lower position along the arrow I.
  • the control arm 120 pressing on the piston 118 so as to inject the liquid L contained in the reservoir 116 into the container 18.
  • the fourth plate 104 is also moved downwards to bring the reservoir 116 close to the container 18 for the injection.
  • the control arm 120, and the fourth plate 104 are moved back in translation towards their positions. high.
  • the anti-drip device 119 may optionally aspirate any residual traces of liquid, in particular by returning the piston 118 of the injection member 114 in the intermediate position.
  • the second plate 16 is then rotated relative to the fourth plate 104 to again face the gripping member 122 of the plug 80, provided with the plug 80, facing the filling opening 42 of the container 18, as illustrated on the figure 6G .
  • the gripping member 122 is moved in translation so as to bring the stopper 80 and the support portion Sp of the container 18 into contact, and then the magnetic field exerted by the gripping member 122 is reduced so that the force modulus of attraction between the gripping member 122 and the plug 80 is less than the modulus of the retention force F2 between the plug and the container.
  • the stopper 80 then closes the receptacle 18 and the gripping member 122 of the stopper 80 is then moved away from the receptacle 18.
  • a shaking step is carried out.
  • the second plate is moved proximally to bring the container body 18 into contact with the third plate 98 and to tilt the axis Xr of the container 18 relative to the vertical direction as shown in FIG. figure 6I .
  • the first plate 12 is moved in translation until it comes into contact with the body of the container 18, as illustrated in FIG. figure 6J . More particularly, the abutment 14 of the first plate 12 comes into contact with the body of the container 18. The first plate 12 continues to move in translation along the arrow f2 until it tilts the container 18 so that its end having the opening filling station 42 is oriented towards the support S, as illustrated in FIG. figure 6K . During this movement, the first plate 12 exceeds the third plate 98.
  • a ninth step illustrated on the figure 6L , the second plate 16 is moved in an alternating translational movement so as to effect the shaking, in particular the aperiodic shaking described above, of the contents of the container 18.
  • a tenth step once the shaking of the container 18 is completed, the first plate 12 is moved in translation towards the support S.
  • the angle of inclination of the axis Xr of the container with respect to the shaking axis X decreases with the translation of the first plate 12 towards the support S until the body of the container 18 comes into contact with the third plate 98.
  • the first plate 12 is moved in translation to a position where it is no longer in contact with the container 18, for example to its rest position, as illustrated in FIG. figure 6M .
  • a centrifugation step is carried out.
  • the second drive member 100 is actuated so as to move in rotation about the shaking axis X (coincides with the axis of centrifugation Y), the second plate 16 and to carry out the centrifugation of the shaken contents of the container 18.
  • second plate 16 rotates at an angular speed of up to 2000 revolutions per minute, which causes the inclination of the axis Xr of the container 18.
  • the axis Xr of the container is substantially horizontal.
  • the shaking and centrifugation steps can, if necessary be repeated alternately, for variable times and with variable time intervals.
  • the container 18 (and more particularly are Xr axis) is again oriented vertically, so as to be able to remove its cap 80 according to a procedure similar to that of the second and third stages (with the gripping member 22 coming to exert a force of attraction to unclog the container 18).
  • the container axis Xr 18 is subsequently again inclined by translation of the second plate and by contact with the third plate 98 and then by the first plate 12 so as to empty (cf. figure 6P ) the liquid content of the container after centrifugation and shaking in the trough 124 by orienting the filling opening 42 to said trough 124.
  • the first plate 12 and the second plate 16 successively or simultaneously, are moved in translation towards the support S for the first plate 12 and in distal position for the second plate 16 so as to cause the container 18 to a position, called original, in which the axis Xr of the container is substantially vertical.
  • an automaton may be provided for placing and removing the containers 18 on the flanges 46 of the second plate 16 and / or the injection members 114.
  • the content remaining in the container 18 can be analyzed and weighed for estimate characteristics of the powdery product.
  • a system for measuring the weight of the contents of the trough 124 after the shaken liquid contents of the container 18 have been emptied therein can be provided.
  • This shaking and centrifugation device 10 can in particular be used to measure the solvent absorption capacity of the flour as in the "AACC - Method 56-11" previously mentioned.
  • the present shaking and centrifugation device is not limited to this application and can be used in other shaking and centrifuging processes of the same type, in particular for contents comprising multi-compounds comprising an element. severable.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Centrifugal Separators (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Claims (17)

  1. Vorrichtung zum Schütteln und Zentrifugieren (10) eines Inhalts, der aus einem Material im pulverförmigen Zustand und ein flüssiges Produkt in einem starren Behälter (18) besteht, um einen Test bezüglich des gemischten Inhalts zu machen, wobei der Behälter (18) ein Fassungsvermögen von weniger als einem Liter aufweist und für eine Menge von Inhalt speziell zum Durchführen des Tests geeignet ist, umfassend:
    - einen Rahmen (20),
    - eine indirekt am Rahmen (20) montierte Platte (16), die beweglich in Bezug auf den Rahmen (20) angeordnet ist,
    - ein zweites Antriebsmittel, das zum Versetzen der Platte (16) in Bezug auf den Rahmen (20) geeignet ist,
    - der Behälter (18) wird durch die Platte (16) getragen und ist in Bezug auf die Platte (16) beweglich angebracht, und
    - das zweite Antriebsmittel (100) ist geeignet, die Platte (16) in Bezug auf den Rahmen (20) in einer Drehbewegung um eine Zentrifugierachse (Y) zu versetzen,
    - der durch die Platte (16) getragene Behälter (18) ist in Bezug auf die Zentrifugierachse (Y) versetzt,
    sodass der Inhalt des Behälters (18) zentrifugiert wird, wenn die Platte (16) um die Zentrifugierachse (Y) in Drehung versetzt wird, und
    dadurch gekennzeichnet, dass die Vorrichtung zum Schütteln und Zentrifugieren (10) ein erstes Antriebsmittel aufweist,
    - das erste Antriebsmittel (30) geeignet ist, die Platte (16) in Bezug auf den Rahmen (20) mit einer alternierenden Bewegung in einer Schüttelrichtung (X) zu versetzen; die Zentrifugierachse (Y) und die Schüttelachse (X) fallen dabei zusammen, um eine Verlagerung des Behälters (18) in Bezug auf die Platte (16) zu bewirken, um ausgehend von der Bewegung der Platte (16) ein Schütteln des Behälters (18) durchzuführen,
    und
    dadurch, dass
    die Vorrichtung zum Schütteln und Zentrifugieren (10) ein Auswahlsystem (102) beinhaltet, das geeignet ist, um abwechselnd:
    - in einer Betriebsart des Schüttelns die Platte (16) dem ersten Antriebsmittel (30) zuzuordnen und die Platte (16) vom zweiten Antriebsmittel (100) zu trennen, und
    - in einer Zentrifugierbetriebsart die Platte (16) dem zweiten Antriebsmittel (100) zuzuordnen und die Platte (16) vom ersten Antriebsmittel (30) zu trennen.
  2. Vorrichtung zum Schütteln und Zentrifugieren (10) nach Anspruch 1, ferner umfassend eine Platte (12), die direkt oder indirekt am Rahmen (20) montiert ist, die eine erste Platte (12) ist, angeordnet in der Nähe der Platte (16), die eine zweite Platte (16) bildet, wobei die erste Platte beweglich in Bezug auf die zweite Platte (16) ist, und die erste Platte (12) einen Anschlag (14) umfasst, wobei der Anschlag (14) in der Nähe und gegenüber dem Behälter (18) angeordnet ist, wobei der Anschlag (14) fest auf der ersten Platte (12) angebracht ist, und das erste Antriebsmittel geeignet ist, die zweite Platte (16) gegenüber der ersten Platte (12) in einer Translationsbewegung zu versetzen, um eine Reihe von Stößen zwischen dem Behälter (18) und dem Anschlag (14) zu bewirken.
  3. Vorrichtung zum Schütteln und Zentrifugieren (10) nach Anspruch 1 oder 2, bei der der Behälter (18) ein reagenzglasartiger Behälter ist und Folgendes umfasst:
    - einen starren Hohlkörper (37), der einen Innenraum definiert und sich längsseits entlang einer Behälterachse (Xr) zwischen einem ersten Ende (38) und einem zweiten Ende (40) erstreckt, wobei das zweite Ende (40) eine Einfüllöffnung (42) definiert,
    - ein Trägerteil (Sp), das zu seinem zweiten Ende ausgerichtet ist, und
    bei der die Vorrichtung zum Schütteln ferner einen Verschluss (80) umfasst, der zwischen einer Schließstellung, in der der Verschluss (80) mit dem Trägerteil (Sp) zusammenwirkt und den Behälter (18) dicht verschließt, und einer Öffnungsstellung, in der der Verschluss (80) die Einfüllöffnung (42) nicht schließt, beweglich ist.
  4. Vorrichtung zum Schütteln und Zentrifugieren (10) nach Anspruch 3, die ein Greifmittel (122) des Verschlusses (80) umfasst, das entlang der Schüttelrichtung (X) verschiebbar ist und zum Versetzen des Verschlusses (80) zwischen seiner Öffnungsstellung und seiner Schließstellung geeignet ist, bei der das Greifmittel (122) magnetische Elemente umfasst, in der der Verschluss (80) und das Trägerteil des Behälters (18) magnetische Elemente aufweisen, die geeignet sind, eine Haltekraft (F2) des Verschlusses (80) auf dem Behälter (18) zu erzeugen, und bei der die zweite Platte eine Aussparung und ein Verbindungsmittel (44) umfasst, das teilweise in der Aussparung angeordnet ist, wobei das Verbindungsmittel einen Flansch (46) beinhaltet, der zum Aufnehmen und Halten des Behälters (18) bestimmt ist, und bei der das Verbindungsmittel (44) und der Behälter (18) magnetische Elemente umfassen, die geeignet sind, eine Haltekraft (F1) des Behälters (18) im Flansch (46) zu erzeugen.
  5. Vorrichtung zum Schütteln und Zentrifugieren (10) nach Anspruch 4, bei der die Größe der Haltekraft des Verschlusses auf dem Behälter kleiner als die Haltekraft des Behälters (18) im Flansch (46) ist.
  6. Vorrichtung zum Schütteln und Zentrifugieren (10) nach einem der Ansprüche 1 bis 5, die ferner eine dritte Platte (98) beinhaltet, die mit dem Rahmen verbunden ist, wobei die zweite Platte (16) entlang der Schüttelachse (X) gegenüber der dritten Platte (98) verschiebbar ist, um den Behälter (98) gegenüber der Schüttelachse (X) um einen Winkel zwischen circa 0° und 60° zu neigen.
  7. Vorrichtung zum Schütteln und Zentrifugieren (10) nach einem der Ansprüche 1 bis 6, die eine vierte Platte beinhaltet, die eine Aufnahmeöffnung (110) eines Einspritzmittels (114) umfasst, das zum Einspritzen eines flüssigen Produkts in den Behälter (18) bestimmt ist, und bei der das Einspritzmittel mit einer Antitropfvorrichtung (119) bereitgestellt ist.
  8. Vorrichtung zum Schütteln und Zentrifugieren (10) nach Anspruch 3 und 7, bei der die vierte Platte um die Schüttelachse (X) drehbar ist zwischen einer Position, bei der sich die Aufnahmeöffnung des Einspritzmittels (114) gegenüber der Einfüllöffnung (42) befindet, und einer Position, bei der sich die Aufnahmeöffnung (110) des Einspritzmittels (122) gegenüber der Einfüllöffnung (42) winkelig versetzt ist.
  9. Vorrichtung zum Schütteln und Zentrifugieren (10) nach Anspruch 7 oder 8, die einen Steuerarm (120) des Einspritzmittels (114) beinhaltet, der zum Steuern des Einspritzens des flüssigen Produkts in den Behälter (18) geeignet ist.
  10. Vorrichtung zum Schütteln und Zentrifugieren (10) nach einem der Ansprüche 1 bis 9, bei der in der Zentrifugierbetriebsart die zweite Platte (16) mit dem zweiten Antriebsmittel (100) verbunden ist, wenn die zweite Platte (16) über eine Antriebswelle (28) der Bewegung des zweiten Antriebsmittels (100) in Drehung versetzt wird, wobei sich die gerillte Welle (28) im Wesentlichen entlang der Schüttelachse (X) erstreckt, die die Mittelachse der ersten Platte definiert.
  11. Vorrichtung zum Schütteln und Zentrifugieren (10) nach einem der Ansprüche 1 bis 10, die eine Vielzahl von Behältern (18) umfasst, wobei die Vielzahl der auf der zweiten Platte angeordneten Behälter um die Schüttelachse (X) gleichmäßig winkelig verteilt ist.
  12. Verfahren zum Schütteln und Zentrifugieren, das folgende Schritte einschließt:
    - Bereitstellen einer Vorrichtung zum Schütteln und Zentrifugieren (10) nach Anspruch 2,
    - Anordnen des Behälters (18) auf der zweiten Platte (16),
    - teilweises Füllen des Behälters (18) mit einem Material im pulverförmigen Zustand und einem flüssigen Produkt,
    - Schütteln des Inhalts, indem die zweite Platte (16) in Bewegung versetzt wird, indem sie über das erste Antriebsmittel (30) in einer Translationsbewegung entlang der Schüttelachse (X) verschoben wird, um eine Verlagerung des Behälters (18) in Bezug auf die zweite Platte zu bewirken, um ein Schütteln des Behälters (18) und seines Inhalts durchzuführen,
    - Unterbrechen der Translationsbewegung der zweiten Platte (16),
    - Zentrifugieren des Inhalts, indem die zweite Platte (16) in Bewegung versetzt wird, indem das zweite Antriebsmittel in einer Drehbewegung um die Zentrifugierachse (Y) verschoben wird,
    - Unterbrechen der Drehbewegung der zweiten Platte (16).
  13. Verfahren nach Anspruch 12, das ferner einen Schritt einschließt, der aus Folgendem besteht:
    - Leeren des flüssigen Inhalts des Behälters (18) in eine Auffangrinne (124) nach den Schritten des Schüttelns und des Zentrifugierens.
  14. Verfahren nach Anspruch 12 oder 13, bei dem der im Füllen des Behälters bestehende Schritt aus Folgendem besteht:
    - in einem ersten Schritt Füllen des Behälters (18) mit einem Material im pulverförmigen Zustand, und
    - in einem zweiten Schritt Füllen des Behälters (18), der auf der zweiten Platte (16) angeordnet ist, mit einem flüssigen Produkt mithilfe eines Einspritzmittels (114) einer vierten Platte, das gegenüber der durch den Behälter (18) definierten Einfüllöffnung (42) angeordnet ist, wobei das Einspritzmittel (114) durch einen Steuerarm (120) gesteuert wird.
  15. Verfahren nach einem der Ansprüche 12 bis 14 in dem Gefäß (18), bei dem der Behälter (18) einen Verschluss (80) umfasst, der zwischen einer Schließstellung und einer Öffnungsstellung beweglich ist, und das Verfahren Folgendes umfasst:
    - einen Schritt des Öffnens des Behälters (18), der darin besteht, den Verschluss (80) von seiner Schließstellung in seine Öffnungsstellung zu versetzen, und
    - einen Schritt des Verschließens des Behälters (18), der darin besteht, den Verschluss (80) von seiner Öffnungsstellung in seine Schließstellung zu versetzen.
  16. Verfahren nach einem der Ansprüche 12 bis 15, umfassend einen Schritt:
    - der Winkelindexierung der zweiten Platte (16), und/oder
    - der Neigung des Behälters gegenüber der Schüttelachse (X) mithilfe einer dritten Platte (98) und/oder der ersten Platte (12), und/oder
    - des Wiegens des Restinhalts des Behälters nach dem aus dem Ausleeren des flüssigen Inhalts des Behälters (18) in die Auffangrinne (124) bestehenden Schritt.
  17. Verfahren nach einem der Ansprüche 12 bis 16, bei dem die Vorrichtung zum Schütteln und Zentrifugieren (10) eine Vielzahl von Behälter umfasst, und die Behälter (18) geschüttelt, zentrifugiert und gegebenenfalls mit einem flüssigen Produkt gefüllt werden, und/oder geleert und/oder verschlossen und/oder gleichzeitig geöffnet und/oder gewogen werden.
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