EP2604572A1 - Filling head for filling containers - Google Patents
Filling head for filling containers Download PDFInfo
- Publication number
- EP2604572A1 EP2604572A1 EP12196561.0A EP12196561A EP2604572A1 EP 2604572 A1 EP2604572 A1 EP 2604572A1 EP 12196561 A EP12196561 A EP 12196561A EP 2604572 A1 EP2604572 A1 EP 2604572A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling
- probe
- level
- jet
- level probe
- 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.)
- Granted
Links
- 239000000523 sample Substances 0.000 claims abstract description 146
- 239000007788 liquid Substances 0.000 claims abstract description 81
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- 230000000875 corresponding effect Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 235000013361 beverage Nutrition 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 235000014554 bottled still water Nutrition 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/28—Flow-control devices, e.g. using valves
- B67C3/282—Flow-control devices, e.g. using valves related to filling level control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
- B67C2003/2685—Details of probes
Definitions
- the present invention relates to a filling member for filling containers, preferably for filling beverage containers with beverages.
- a so-called Langrohrheller in which the bottled in a bottle beverage is introduced by means of a tube inserted deep into the bottle.
- a lower-layer filling of the bottle is achieved, which results in an advantageous filling behavior, especially in the case of intumescent products and / or oxygen-sensitive products.
- so-called filling tube-less filling systems are known in which the liquid flows from a product outlet arranged above the mouth of the container into the container to be filled and the displaced by the liquid from the container gas is discharged by means of a return gas pipe from the container.
- the return gas pipe is typically located in the center of the filling jet, wherein the filling jet is usually derived from the return gas pipe by means of a Abweisnemes to the inner wall of the container to be filled in order to achieve a little frothing and gentle filling into the respective container.
- so-called Vollstrahlheller which may be designed in particular as a free-jet filler known.
- the liquid which is to be filled into the corresponding container, from a typically spaced above the mouth of the container arranged product outlet unobstructed by the mouth of the container.
- the displaced by the liquid gas escapes through the gap between the jet and the respective bottle mouth.
- volume controls are known in which a certain filling volume is to be filled in a specific container.
- weighing fillers are known in which a certain product weight is to be achieved in the respective container.
- filling level controlled filling systems are known in which the filling level reached in each container is used as a shutdown criterion for the filling.
- a filling height-dependent control for example, from DE 10 2008 029 208 A1 known, in which a free-jet filling system is described, which has a filling level probe, which is arranged outside of the filling jet at the edge of the filling member to a centering device.
- the arrangement of the filling level probe in the edge region of the filling element is prone to failure in the case of narrow container mouths, since the probe can collide with the container mouth when it enters the container.
- fill level probes usually electrical sensors are used, in which an electrode is attached to the level sensor itself, which enters upon reaching the corresponding liquid level with a filling element arranged on the ground point in conductive contact.
- the liquid to be filled has a certain electrical Conductivity has.
- a typical requirement for the electrical conductivity of the product to be filled for the mentioned embodiment of the level probe is ⁇ 20 ⁇ S / cm, so that liquids with a lower electrical conductivity can not be filled according to this principle.
- the filling member for filling containers with a liquid Vollstrahl Stahlllelement for filling the container in the full jet and a level probe for determining the level.
- the filling level probe is arranged below the full-beam filling element such that it lies in the full jet during filling.
- the filling level probe is arranged below the Vollstrahl Stahlllelements that it is when filling in full jet, it follows that the filling level probe is disposed in an area which is less vulnerable to collision when retracting the level probe in the container mouth and complications corresponding to the abutment of the level probe at the container mouth result, can be reduced.
- the basic principle of filling in the full jet is not interrupted by said arrangement of the level probe, so that the displaced by the liquid filled gas from the interior of the respective container can still escape between the jet and the mouth. Accordingly, there is a filling member with increased reliability and robustness in the filling operation, which allows a filling level controlled filling of containers in full jet.
- the filling level probe is preferably arranged so that it is enclosed by the full jet during filling, preferably completely in the full jet. If the fill level probe is enclosed by the full jet, the physical conditions of the bodies flow around it apply, so that different hydrodynamic effects can be exploited in a comprehensible and repeatable way.
- a particularly aerodynamic design can be achieved if the filling level probe has a probe body, which adjoins a valve body of the full-beam filling element.
- a possible turbulence-poor inflow of liquid into the container can be achieved. This is particularly important in the beverage bottling and bottling other foods of importance, which should be filled very gently.
- this design allows a compact design and the ability to accurately center the level probe with respect to a typically centered arranged to the valve body fluid outlet.
- At least part of the filling level probe is arranged so centered relative to the liquid outlet of the full-jet filling element that the filling level probe lies symmetrically in the full jet.
- the level probe is symmetrically surrounded by the full jet, the hydrodynamic effects are reliably achieved for each filling.
- the level probe may be formed by a probe body extending in the flow direction, at the lower end of which different shut-off mechanisms may be arranged.
- the filling level probe In order to enable a reliable introduction of the filling level probe into the container, at least part of the filling level probe is arranged below a liquid outlet of the full-jet filling element.
- the filling level probe preferably has a probe body which extends through the liquid outlet of the full-jet filling element.
- the latter has a probe body, at the downstream end of which a flow break-off edge is formed.
- a flow break-off edge may be formed in the region downstream of this lying a substantially liquid-free area - for example, in the region of an end face of the probe body.
- This essentially liquid-free region can be detected, for example, via its electrical, optical or fluidic effects, such as, for example, via the change in an electrical resistance, a change in the refractive index, a change in the absorption behavior or a change in the flow force due to suction.
- the change in the corresponding properties occurs in particular when the liquid level in the container rises above the flow-breaking edge and, accordingly, the liquid-free region collapses. This effect can be used in accordance with the determination of reaching the predetermined level, for example, if the stall edge is attached to the corresponding position on the level probe.
- the fill level probe preferably has a probe body and a force measuring device in operative connection with the probe body for measuring the force exerted on the probe body by the full jet.
- the force is developed, for example, via the suction effect of the full jet on the probe body. This suction effect occurs particularly strongly at a stall edge. The force changes as soon as the probe body or a flow-breaking edge sinks into the liquid level, so that this effect can be used to determine the given fill level.
- the determination of the predetermined filling level can also be carried out by way of the fact that the filling level probe has at least one moving body which can be set in motion by the full jet, the moving body preferably being a rotating body drivable by the full jet.
- the moving body preferably being a rotating body drivable by the full jet.
- a propeller, a rotatable swirler or any other geometric shape which sets the linear flow movement of the full jet in a rotational movement can be used.
- immersion of the moving body in the liquid level occurs a change in the movement of the liquid flow, which changes according to the rotational movement or even stops. This behavior can be used to determine the achieved preset level.
- the filling level probe has at least one flow switch which can be actuated by the full jet for determining the filling level, wherein the flow switch is preferably arranged at the lower end of a probe body of the filling level probe.
- the flow switch takes on flow through the full jet another Switching position as when drying the flow. Accordingly, when the flow switch is immersed in the liquid level, the flow will be torn off so that the switching process achieved thereby can serve to determine the level reached.
- the filling level probe has at least one electrode for determining the filling level, the electrode preferably being arranged at the lower end of a probe body of the filling level probe, and the electrode being particularly preferably arranged downstream of a flow breaking edge formed on a probe body.
- the electrode lies in a substantially liquid-free region.
- an electrical line can be produced here via the liquid. In this way, this can also be used to determine the achievement of the predetermined level.
- the fill level can also be determined if the fill level probe has at least one optical sensor, wherein the optical sensor can preferably measure a change in the refractive index, a change in the absorption, the reflection or the transmission. In this way, the level can be determined very reliable and wear-free.
- a float At the lower end of the probe body and a float may be provided, which also increases with increasing liquid level and thereby actuates a switch.
- a float may also be spring-loaded, such that it is flushed by the flow of the full jet down, against the spring action, and then raised only with increasing liquid level.
- the filling member is provided with a Vollstrahl sympathomimetic having a conical liquid outlet and a valve cone arranged therein, wherein by lifting the valve lever, an outlet of the product can be achieved from the Vollstrahl Stahlllelement.
- a container to be filled for example, via a centering, attach.
- FIG. 1 shows a filling member 1 for filling a container 2 in the form of a bottle with a liquid 30.
- the filling member 1 comprises a Vollstrahl Stahlllelement 10 for filling the container 2 in the jet 3.
- the liquid 30 emerges from a substantially centered over the mouth 20 of the container arranged liquid outlet 16 and flows as a full jet 3 through the mouth 20 and the neck 22 of the container 2 in the container volume 24.
- the displaced by the rising liquid level 32 from the container 2 gas, so for example, the air in the container volume 24, can escape between the flowing in the full jet 3 in the container volume 24 liquid 30 and the mouth 20 of the container 2, as indicated by the arrows in FIG. 1 indicated schematically.
- the liquid outlet 16 is arranged at a distance from the mouth 20 of the container 2 and there is no direct contact between the full-jet filling element 10 and the container 2.
- This arrangement is also referred to as free-jet filling.
- the solid jet 3 "falls" from the full-jet filling element 10 through the container mouth 20 into the interior of the container 2.
- Such a construction is often used, for example in the field of beverage filling, to efficiently fill non-foaming and oxygen-insensitive liquids in containers. This is the case, for example, when bottling still bottled water.
- the Vollstrahl garllelement 10 has to control the liquid flow on a cone-shaped valve seat 12, in which a valve cone 14 can engage for sealing.
- a valve cone 14 In the in FIG. 1 shown state, the valve cone 14 is lifted out of the valve seat 12, so that the liquid 30 can flow accordingly in the full jet 3 from the liquid outlet 16 into the container 2.
- the poppet 14 corresponding to the in FIG. 1 shown state is lowered into the cone-shaped valve seat 12, the Vollstrahl spallelement 10 is closed, however, so that no liquid 30 emerges.
- the liquid 30, with which the Container 2 is to be filled it is typically above the Vollstrahlhell elements 10, for example, in an overlying liquid container such as a ring container of a rotary filling, so that by lifting the valve cone 14 from the valve seat 12 out the liquid flows 30 in the full jet 3 in the container 2 ,
- the liquid level 32 in the container 2 increases with the volume of liquid supplied via the full jet 3.
- a control of the level of the liquid 30 in the container 2 is achieved via a level probe 4, which determines the achievement of a predefined level.
- Under fill level here the distance between the mouth 20 of the container 2 and then the upcoming liquid level 32 understood. In this way it is achieved that the containers are optically filled evenly - regardless of the slightly varying interior volume of certain types of containers.
- the level probe 4 in FIG. 1 is arranged below the full-beam filling element 10 so that it lies in the full jet 3 during filling.
- the filling level probe 4 has a probe body 40, which is enclosed by the full jet 3 during filling.
- the probe body 40 includes in the in FIG. 1 shown embodiment of the valve cone 14 at. Accordingly, the filling level probe 4 also extends through the liquid outlet 16, so that here at least part of the filling level probe 4 lies below the liquid outlet 16.
- the probe body 40 Due to the arrangement of the probe body 40 directly following the valve cone 14, the probe body 40 is centered on the product outlet 16, so that the filling level probe 4 is arranged symmetrically to the full jet 3. In the case of a circular cross section of the full jet 3, the probe body 40 lies correspondingly exactly on the longitudinal axis of the full jet 3. In other words, the filling level probe 4 is accessible from neither side without having to pass through the full jet 3.
- the probe body 40 is formed so that it takes the form of a cylindrical rod, wherein at its lower end a flow-breaking edge 42 is formed.
- the flow separation edge 42 causes the formation of a liquid-free region 34 in the flow direction directly behind the flow separation edge 42. So here's an air bubble, which, however, is at a vacuum.
- the formation of the liquid-free region 34 is due to the hydrodynamics around the body and requires no further measures.
- the flow behavior of the full jet 3 at the level probe 4 exerts a force on this in the flow direction, which in FIG. 1 is schematically referred to as force F n .
- This force F n can be determined by measurement with a schematically shown force measuring device 5, which is in operative connection with the probe body 40. By determining the force F n , it can be ascertained whether the probe body 40 of the filling level probe 4 is already immersed in the liquid level 32, or whether a flow of the full jet 3 continues along the probe body 40 or a region of the probe body 40.
- the measurement of the force F n which is exerted by the incoming full jet 3 on the probe body 40, for example, via a load cell 5 take place. Since it is here - depending on the end face of the probe body 40 - are relatively small forces, a sensitive load cell 5 is needed. In order to determine whether the predetermined level is reached, a difference is made over time to the force F n initially exerted on the probe body 40. When the force F n has dropped to a certain predetermined value because the probe body starts to submerge in the liquid level 32, the poppet 14 is lowered and the filling is finished.
- FIG. 2 shows in an alternative embodiment, a portion of the filling member 1 with the valve body 14.
- a level probe 4 is provided with a probe body 40, wherein here in the lower region of the probe body 40, a rotary body 50 is provided, which in flow through the schematically illustrated liquid 30 of the full jet 3 is set in rotation.
- the rotary body 50 rotates correspondingly until the liquid level 32 of the liquid has reached the rotary body 50 or completely covers it. Accordingly, a rotation of the rotary body 50 can be detected by means of suitable rotary sensors, for example by means of a reed contact or optically.
- the rotation speed correspondingly reduced or the rotation comes to a complete halt.
- the filling is stopped by the Vollstrahl Stahl Glallelement 10 and the valve cone 14 is lowered into the valve seat 12.
- the probe body 40 in turn extends from the valve body 14.
- a flow switch 52 is provided at the lower end of the probe body 40 of the level probe 4.
- the flow switch 52 is designed such that it protrudes beyond the diameter of the probe body 40 and is correspondingly flowed through by the full jet 3. Due to the projecting configuration of the flow switch 52, it is flowed through by the full jet 3 or the liquid 30, so that the flow switch 52 is deflected accordingly.
- the flow switch 52 is formed by an inflow element 520, which is articulated on the probe body 40 via a corresponding hinge 522 such that the inflow element 520 can pivot about the hinge 522.
- the Anströmelement 520 is biased in the closed position of the corresponding flow switch 52.
- the level sensor 4 signals according to the not yet reached predetermined level.
- the liquid level 32 rises above the plane of the Anström stressess 520 of the flow switch 52, this is moved by the spring bias in the closed position and the level probe 4 signals accordingly that the desired level is reached.
- FIG. 4 shows a further embodiment of the filling member 1 in a further schematic sectional view.
- the conical valve seat 12, which is formed together with the valve cone 14 in Vollstrahl hypollelement 10, can be clearly seen.
- the liquid outlet 16 is formed by means of a corresponding flow separation edge at the end of the valve seat 12.
- shape of the Vollstrahl Stahlllenses 10 and a centering bell 18 is provided, which is intended to receive the mouth region of a container to be filled.
- a level probe 4 is also provided in this embodiment, wherein the level probe 4 has a probe body 40, which is connected as an extension directly to the valve cone 14 of the Vollstrahl Stahlllenses 10.
- the filling liquid 30 is at the top to the Vollstrahl Stahlllelement 10, so that by raising the valve cone 14 from the valve seat 12, in the mold, as in FIG. 4 is shown, an inflow of the liquid 30 in the form of a full jet 3 in one in the FIG. 4 not shown container takes place.
- a stall edge 42 is formed such that the probe body 40 assumes a substantially cylindrical shape.
- a pair of electrodes 54 are provided on the end face 44 of the probe body 40.
- the electrodes 54 are formed as short-circuiting electrodes.
- the two electrodes 54 are arranged in the center of the end face of the probe body 40 and correspondingly behind the flow separation edge 42. Accordingly, a liquid-free region 34 forms due to the flow-off edge 42 below the probe body 40 in the region of its end face 44 in the presence of a flow. Due to the liquid-free region 34, which forms behind the tear-off edge 42, however, the two electrodes 54 do not permanently come into electrical connection via the liquid. Only when the liquid level 32 has risen so far that the two electrodes 54 dive into the liquid 30, a corresponding electrical contact takes place, which then signals the achievement of the desired level.
- FIG. 5 a further embodiment of the filling member 1 is shown, wherein the basic structure of the in FIG. 4 shown construction of the filling member 1 is similar.
- the filling level probe 4 in turn comprises a probe body 40, which forms a flow-breaking edge 42 at its lower end.
- the probe body 40 extends substantially in extension with the poppet 14.
- a liquid-free region 34 below the probe body 40 is also formed here when a flow through the solid jet 3 occurs.
- an optical sensor 56 is provided in which a light beam passing through a light guide 562 exits through a window 560.
- the refractive properties or absorption properties of the light beam supplied via the optical waveguide 562 at the interface between the window 560 and the corresponding underlying medium are measured by the reflected beam, which is also transported back via the optical waveguide 562.
- the reflected beam which is also transported back via the optical waveguide 562.
- the filling level probe 4 can determine via the corresponding optical observation whether the corresponding liquid level 32 has reached the filling height predetermined by the window 560.
- FIG. 6 shows a further variant for an optical measurement of the predetermined level, wherein an optical sensor 57 in a variant opposite to in FIG. 5 shown version is provided such that via a light waveguide 570 on one side of a light beam is coupled into the container to be filled. The light is received again via a second optical waveguide 572.
- the liquid level 32 rises above the level defined by the exit window 574 and the entrance window 576, the achievement of the desired liquid level is detected by a change in the back-reflected beam in the optical waveguide 572.
- the exit window 574 also assumes the function of the entrance window 576.
- the two optical waveguides 570 and 572 advantageously end in a common entry and exit window (not shown), i. H. the optical waveguide for the emission of the light beam and the optical waveguide for the reception of the reflected light beam both end at the common entrance and exit windows.
- the two optical waveguides can preferably also be arranged parallel to one another. It is also possible that only a single optical fiber for emitting and receiving the light beam is used.
- the Vollstrahl spallelement 10 is provided with a level probe 4, which is provided in the form of a probe body 40 which is provided with a bore 58.
- the bore 58 serves to determine the vacuum generated at the lower end of the probe body 40 by means of the stall edge 42.
- the pressure measurement is by means of a schematic in FIG. 8 indicated pressure gauge 580 made which communicates via the bore 58 in the probe body 40 with the liquid-free region 34.
- FIG. 8 is accordingly one opposite the representation of the FIG. 7 increased liquid level 32 shown, in which the probe body 40, and thus also the bore 58, is immersed in the liquid level 32. Accordingly, the pressure measured in the bore 58 changes, in particular because the liquid-free region 34 of FIG FIG. 7 collapsed by reaching the liquid level 32. Accordingly, the pressure in the bore 58 increases with respect to the in FIG. 7 shown variant. This increase in pressure is measured and is counted as reaching the liquid level to the predetermined level.
Abstract
Description
Die vorliegende Erfindung betrifft ein Füllorgan zum Befüllen von Behältern, bevorzugt zum Befüllen von Getränkebehältern mit Getränken.The present invention relates to a filling member for filling containers, preferably for filling beverage containers with beverages.
Zum Abfüllen von Flüssigkeiten in Behälter sind unterschiedliche Möglichkeiten zur Ausbildung der jeweiligen Füllorgane bekannt. Beispielsweise ist es im Bereich der Getränkeabfüllung bekannt, je nach abzufüllender Flüssigkeit, also insbesondere je nach abzufüllendem Produkt, unterschiedliche Füllorgane zu verwenden, welche den durch das Produkt vorgegebenen Gegebenheiten möglichst gut Rechnung tragen.For filling liquids in containers different possibilities for the formation of the respective filling members are known. For example, it is known in the field of beverage bottling, depending on the liquid to be filled, so in particular depending on the product to be filled, to use different filling organs, which take into account the conditions given by the product as well as possible.
Beispielsweise ist ein so genannter Langrohrfüller bekannt, bei welchem das in eine Flasche abzufüllende Getränk mittels eines tief in die Flasche eingeführten Rohres eingebracht wird. Auf diese Weise wird ein unterschichtendes Befüllen der Flasche erreicht, was besonders bei aufschäumenden Produkten und/oder bei sauerstoffempfindlichen Produkten ein vorteilhaftes Füllverhalten ergibt.For example, a so-called Langrohrfüller is known in which the bottled in a bottle beverage is introduced by means of a tube inserted deep into the bottle. In this way, a lower-layer filling of the bottle is achieved, which results in an advantageous filling behavior, especially in the case of intumescent products and / or oxygen-sensitive products.
Weiterhin sind so genannte füllrohrlose Füllsysteme bekannt, bei welchen die Flüssigkeit aus einem über der Mündung des Behälters angeordneten Produktauslauf in den zu befüllenden Behälter einströmt und das durch die Flüssigkeit aus dem Behälter verdrängte Gas mittels eines Rückgasrohres aus dem Behälter abgeleitet wird. Das Rückgasrohr befindet sich dabei typischerweise im Zentrum des Füllstrahles, wobei der Füllstrahl üblicherweise vom Rückgasrohr mittels eines Abweisschirmes an die Innenwand des zu befüllenden Behälters abgeleitet wird, um ein wenig aufschäumendes und behutsames Einfüllen in den jeweiligen Behälter zu erreichen. Weiterhin sind so genannte Vollstrahlfüller, die insbesondere auch als Freistrahlfüller ausgebildet sein können, bekannt. Hier läuft die Flüssigkeit, welche in den entsprechenden Behälter eingefüllt werden soll, von einem typischerweise beabstandet über der Mündung des Behälters angeordneten Produktauslauf durch die Mündung des Behälters ungehindert ein. Das von der Flüssigkeit verdrängte Gas entweicht über den Zwischenraum zwischen dem Vollstrahl und der jeweiligen Flaschenmündung.Furthermore, so-called filling tube-less filling systems are known in which the liquid flows from a product outlet arranged above the mouth of the container into the container to be filled and the displaced by the liquid from the container gas is discharged by means of a return gas pipe from the container. The return gas pipe is typically located in the center of the filling jet, wherein the filling jet is usually derived from the return gas pipe by means of a Abweisschirmes to the inner wall of the container to be filled in order to achieve a little frothing and gentle filling into the respective container. Furthermore, so-called Vollstrahlfüller, which may be designed in particular as a free-jet filler known. Here, the liquid, which is to be filled into the corresponding container, from a typically spaced above the mouth of the container arranged product outlet unobstructed by the mouth of the container. The displaced by the liquid gas escapes through the gap between the jet and the respective bottle mouth.
Die Befüllung von Behältern wird auf unterschiedliche Weise gesteuert. So sind beispielsweise Volumensteuerungen bekannt, bei welchen ein bestimmtes Füllvolumen in einen bestimmten Behälter eingefüllt werden soll. Weiterhin sind Wägefüller bekannt, bei welchen ein bestimmtes Produktgewicht in dem jeweiligen Behälter erreicht werden soll. Darüber hinaus sind füllhöhengesteuerte Füllsysteme bekannt, bei welchen die in jedem Behälter erreichte Füllhöhe als Abschaltkriterium für die Befüllung verwendet wird.The filling of containers is controlled in different ways. For example, volume controls are known in which a certain filling volume is to be filled in a specific container. Furthermore, weighing fillers are known in which a certain product weight is to be achieved in the respective container. In addition, filling level controlled filling systems are known in which the filling level reached in each container is used as a shutdown criterion for the filling.
Eine Wägebefüllung wird vornehmlich bei relativ inhomogenen Produkten, wie beispielsweise Säften mit Fruchtfaseranteil oder Milchprodukten mit Fruchtanteil, verwendet. Eine füllhöhengesteuerte Abfüllung wird dann bevorzugt, wenn die auf diese Weise befüllten Flaschen einen einheitlichen Eindruck beim Endverbraucher machen sollen. Durch die ungenauen Innenvolumina, beispielsweise von Glasflaschen, welche aufgrund des Produktionsprozesses der Glasflaschen entstehen, könnten hier bei gleichem Füllvolumen nämlich unterschiedliche Füllhöhen erreicht werden. Verbraucher sehen solche unterschiedlichen Füllhöhen aber häufig als fehlerhafte Befüllung der Flaschen an.Weighing is used primarily in relatively inhomogeneous products, such as fruit pulp juices or fruit fruity dairy products. A filling height controlled filling is preferred if the bottles filled in this way should make a uniform impression on the end user. Due to the inaccurate inner volumes, for example of glass bottles, which arise due to the production process of the glass bottles, namely different filling heights could be achieved with the same filling volume. However, consumers often regard such different fill levels as faulty filling of the bottles.
Im Bereich der Befüllung im Vollstrahl von Behältern ist eine füllhöhenabhängige Steuerung beispielsweise aus der
Als Füllstandsonden werden üblicherweise elektrische Sensoren verwendet, bei welchen eine Elektrode an dem Füllstandsensor selbst angebracht ist, welcher bei Erreichen des entsprechenden Flüssigkeitsniveaus mit einem am Füllorgan angeordneten Massepunkt in leitenden Kontakt tritt. Hierfür ist jedoch notwendig, dass die abzufüllende Flüssigkeit eine bestimmte elektrische Leitfähigkeit aufweist. Eine typische Anforderung an die elektrische Leitfähigkeit des abzufüllenden Produktes für die genannte Ausführung der Füllstandsonde liegt bei < 20 µS/cm, so dass Flüssigkeiten mit einer geringeren elektrischen Leitfähigkeit nicht nach diesem Prinzip abgefüllt werden können.As fill level probes usually electrical sensors are used, in which an electrode is attached to the level sensor itself, which enters upon reaching the corresponding liquid level with a filling element arranged on the ground point in conductive contact. For this purpose, however, it is necessary that the liquid to be filled has a certain electrical Conductivity has. A typical requirement for the electrical conductivity of the product to be filled for the mentioned embodiment of the level probe is <20 μS / cm, so that liquids with a lower electrical conductivity can not be filled according to this principle.
Entsprechend ist es eine Aufgabe der vorliegenden Erfindung, ein verbessertes Füllorgan zum Befüllen von Behältern mit einer Flüssigkeit anzugeben, welches eine füllhöhenabhängige Füllung im Vollstrahl ermöglicht.Accordingly, it is an object of the present invention to provide an improved filling member for filling containers with a liquid, which allows a filling height-dependent filling in the full jet.
Diese Aufgabe wird durch ein Füllorgan mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Ansprüchen.This object is achieved by a filling member having the features of
Entsprechend weist das Füllorgan zum Befüllen von Behältern mit einer Flüssigkeit ein Vollstrahlfüllelement zum Befüllen des Behälters im Vollstrahl und eine Füllstandsonde zum Bestimmen des Füllstandes auf. Erfindungsgemäß ist die Füllstandsonde so unterhalb des Vollstrahlfüllelementes angeordnet, dass sie beim Befüllen im Vollstrahl liegt.Accordingly, the filling member for filling containers with a liquid Vollstrahlfüllelement for filling the container in the full jet and a level probe for determining the level. According to the invention, the filling level probe is arranged below the full-beam filling element such that it lies in the full jet during filling.
Dadurch, dass die Füllstandsonde so unterhalb des Vollstrahlfüllelements angeordnet ist, dass sie beim Befüllen im Vollstrahl liegt, ergibt sich, dass die Füllstandsonde in einem Bereich angeordnet ist, welcher beim Einfahren der Füllstandsonde in die Behältermündung weniger kollisionsgefährdet ist und entsprechend Komplikationen, welche sich durch das Anstoßen der Füllstandsonde an der Behältermündung ergeben, reduziert werden können. Das Grundprinzip des Füllens im Vollstrahl wird durch die genannte Anordnung der Füllstandsonde nicht unterbrochen, so dass das durch die eingefüllte Flüssigkeit verdrängte Gas aus dem Innenraum des jeweiligen Behälters immer noch zwischen dem Vollstrahl und der Mündung entweichen kann. Entsprechend ergibt sich ein Füllorgan mit erhöhter Zuverlässigkeit und Robustheit im Füllbetrieb, welches eine füllhöhengesteuerte Füllung von Behältern im Vollstrahl ermöglicht.Characterized in that the filling level probe is arranged below the Vollstrahlfüllelements that it is when filling in full jet, it follows that the filling level probe is disposed in an area which is less vulnerable to collision when retracting the level probe in the container mouth and complications corresponding to the abutment of the level probe at the container mouth result, can be reduced. The basic principle of filling in the full jet is not interrupted by said arrangement of the level probe, so that the displaced by the liquid filled gas from the interior of the respective container can still escape between the jet and the mouth. Accordingly, there is a filling member with increased reliability and robustness in the filling operation, which allows a filling level controlled filling of containers in full jet.
Dadurch, dass die Füllstandsonde bei der Befüllung des Behälters im Vollstrahl liegt, können die strömungsdynamischen Effekte und die hydrodynamischen Gegebenheiten, welche sich aus dieser Anordnung ergeben, zur Steuerung des Füllorgans bezüglich der vorgegebenen Füllhöhe ausgenutzt werden. Unterschiedliche Varianten dieses Grundprinzips werden nachfolgend beschrieben werden.Characterized in that the filling level probe is in the full jet when filling the container, the flow dynamic effects and the hydrodynamic conditions which result from this arrangement, to control the filling member with respect to the predetermined filling level be exploited. Different variants of this basic principle will be described below.
Bevorzugt ist dazu die Füllstandsonde so angeordnet, dass sie beim Befüllen vom Vollstrahl umschlossen ist, bevorzugt vollständig im Vollstrahl liegt. Wenn die Füllstandsonde vom Vollstrahl umschlossen ist gelten die physikalischen Gegebenheiten der umströmten Körper, so dass hier auf nachvollziehbare und wiederholbare Weise unterschiedliche hydrodynamische Effekte ausgenutzt werden können.For this purpose, the filling level probe is preferably arranged so that it is enclosed by the full jet during filling, preferably completely in the full jet. If the fill level probe is enclosed by the full jet, the physical conditions of the bodies flow around it apply, so that different hydrodynamic effects can be exploited in a comprehensible and repeatable way.
Eine besonders strömungsgünstige Ausbildung kann erreicht werden, wenn die Füllstandsonde einen Sondenkörper aufweist, welcher an einen Ventilkörper des Vollstrahlfüllelements anschließt. Durch diese Ausprägung kann ein möglichst turbulenzarmes Einströmen der Flüssigkeit in den Behälter erreicht werden. Dies ist insbesondere bei der Getränkeabfüllung und der Abfüllung anderer Lebensmittel von Bedeutung, welche besonders schonend eingefüllt werden sollen. Darüber hinaus ermöglicht diese Ausbildung einen kompakten Aufbau und die Möglichkeit, die Füllstandsonde genau zentriert bezüglich eines typischerweise zentriert zum Ventilkörper angeordneten Flüssigkeitsauslaufs anzuordnen.A particularly aerodynamic design can be achieved if the filling level probe has a probe body, which adjoins a valve body of the full-beam filling element. By this expression, a possible turbulence-poor inflow of liquid into the container can be achieved. This is particularly important in the beverage bottling and bottling other foods of importance, which should be filled very gently. In addition, this design allows a compact design and the ability to accurately center the level probe with respect to a typically centered arranged to the valve body fluid outlet.
Bevorzugt ist zumindest ein Teil der Füllstandsonde so zentriert zu dem Flüssigkeitsauslauf des Vollstrahlfüllelements angeordnet, dass die Füllstandsonde symmetrisch im Vollstrahl liegt. Dadurch, dass die Füllstandsonde symmetrisch vom Vollstrahl umgeben ist, werden die hydrodynamischen Effekte zuverlässig für jede Befüllung erreicht.Preferably, at least part of the filling level probe is arranged so centered relative to the liquid outlet of the full-jet filling element that the filling level probe lies symmetrically in the full jet. The fact that the level probe is symmetrically surrounded by the full jet, the hydrodynamic effects are reliably achieved for each filling.
Konkreter kann die Füllstandsonde auch durch einen sich in Strömungsrichtung erstreckenden Sondenkörper ausgebildet sein, an dessen unterem Ende unterschiedliche Abschaltmechanismen angeordnet sein können.More specifically, the level probe may be formed by a probe body extending in the flow direction, at the lower end of which different shut-off mechanisms may be arranged.
Um ein zuverlässiges Einbringen der Füllstandsonde in den Behälter zu ermöglichen, ist zumindest ein Teil der Füllstandsonde unterhalb eines Flüssigkeitsauslaufs des Vollstrahlfüllelements angeordnet. Dabei weist die Füllstandsonde bevorzugt einen Sondenkörper auf, welcher sich durch den Flüssigkeitsauslauf des Vollstrahlfüllelements hindurch erstreckt.In order to enable a reliable introduction of the filling level probe into the container, at least part of the filling level probe is arranged below a liquid outlet of the full-jet filling element. In this case, the filling level probe preferably has a probe body which extends through the liquid outlet of the full-jet filling element.
In einer bevorzugten Ausbildung der Füllstandsonde weist diese einen Sondenkörper auf, an dessen stromabwärts gelegenem Ende eine Strömungsabrisskante ausgebildet ist. Durch die Strömungsabrisskante kann in dem stromabwärts von dieser liegenden Bereich ein im Wesentlichen flüssigkeitsfreier Bereich ausgebildet werden - beispielsweise auch im Bereich einer Stirnseite des Sondenkörpers. Dieser im Wesentlichen flüssigkeitsfreie Bereich kann beispielsweise über seine elektrischen, optischen oder strömungstechnischen Effekte detektiert werden, so wie beispielsweise über die Veränderung eines elektrischen Widerstandes, eine Änderung des Brechungsindex, eine Änderung des Absorptionsverhaltens oder eine Änderung der Strömungskraft durch Sog. Die Änderung der entsprechenden Eigenschaften tritt besonders dann auf, wenn der Flüssigkeitsspiegel in dem Behälter über die Strömungsabrisskante hinweg steigt und entsprechend der flüssigkeitsfreie Bereich zusammenbricht. Dieser Effekt kann entsprechend zur Bestimmung des Erreichens der vorgegebenen Füllhöhe verwendet werden, wenn beispielsweise die Strömungsabrisskante an der entsprechenden Position an der Füllstandsonde angebracht wird.In a preferred embodiment of the fill level probe, the latter has a probe body, at the downstream end of which a flow break-off edge is formed. By the Flow-off edge may be formed in the region downstream of this lying a substantially liquid-free area - for example, in the region of an end face of the probe body. This essentially liquid-free region can be detected, for example, via its electrical, optical or fluidic effects, such as, for example, via the change in an electrical resistance, a change in the refractive index, a change in the absorption behavior or a change in the flow force due to suction. The change in the corresponding properties occurs in particular when the liquid level in the container rises above the flow-breaking edge and, accordingly, the liquid-free region collapses. This effect can be used in accordance with the determination of reaching the predetermined level, for example, if the stall edge is attached to the corresponding position on the level probe.
Bevorzugt weist die Füllstandsonde einen Sondenkörper und eine mit dem Sondenkörper in Wirkverbindung stehende Kraftmessvorrichtung zur Messung der auf den Sondenkörper durch den Vollstrahl ausgeübten Kraft auf. Die Kraft wird dabei beispielsweise über die Sogwirkung des Vollstrahls an dem Sondenkörper entwickelt. Diese Sogwirkung tritt besonders stark an einer Strömungsabrisskante auf. Die Kraft verändert sich, sobald der Sondenkörper oder eine Strömungsabrisskante in den Flüssigkeitsspiegel eintauchen, so dass dieser Effekt zur Bestimmung der vorgegebenen Füllhöhe verwendet werden kann.The fill level probe preferably has a probe body and a force measuring device in operative connection with the probe body for measuring the force exerted on the probe body by the full jet. The force is developed, for example, via the suction effect of the full jet on the probe body. This suction effect occurs particularly strongly at a stall edge. The force changes as soon as the probe body or a flow-breaking edge sinks into the liquid level, so that this effect can be used to determine the given fill level.
Die Bestimmung der vorgegebenen Füllhöhe kann auch darüber vorgenommen werden, dass die Füllstandsonde mindestens einen vom Vollstrahl in Bewegung versetzbaren Bewegungskörper aufweist, wobei der Bewegungskörper bevorzugt ein vom Vollstrahl antreibbarer Rotationskörper ist. Hier kann beispielsweise ein Propeller, ein rotierbarer Drallkörper oder irgendeine andere geometrische Form, welche die lineare Strömungsbewegung des Vollstrahls in eine Rotationsbewegung versetzt, verwendet werden. Beim Eintauchen des Bewegungskörpers in den Flüssigkeitsspiegel tritt eine Änderung der Bewegung des Flüssigkeitsstromes auf, welche entsprechend die Rotationsbewegung verändert oder gar stoppt. Dieses Verhalten kann zur Bestimmung des erreichten vorgegebenen Füllstandes verwendet werden.The determination of the predetermined filling level can also be carried out by way of the fact that the filling level probe has at least one moving body which can be set in motion by the full jet, the moving body preferably being a rotating body drivable by the full jet. Here, for example, a propeller, a rotatable swirler or any other geometric shape, which sets the linear flow movement of the full jet in a rotational movement can be used. Upon immersion of the moving body in the liquid level occurs a change in the movement of the liquid flow, which changes according to the rotational movement or even stops. This behavior can be used to determine the achieved preset level.
In einer weiteren vorteilhaften Ausbildung weist die Füllstandsonde mindestens einen vom Vollstrahl betätigbaren Strömungsschalter zum Bestimmen des Füllstandes auf, wobei der Strömungsschalter bevorzugt am unteren Ende eines Sondenkörpers der Füllstandsonde angeordnet ist. Der Strömungsschalter nimmt bei Anströmung durch den Vollstrahl eine andere Schaltstellung ein als beim Versiegen der Strömung. Entsprechend wird beim Eintauchen des Strömungsschalters in den Flüssigkeitsspiegel die Strömung abreißen, so dass der dadurch erreichte Schaltvorgang zum Bestimmen des erreichten Füllstandes dienen kann.In a further advantageous embodiment, the filling level probe has at least one flow switch which can be actuated by the full jet for determining the filling level, wherein the flow switch is preferably arranged at the lower end of a probe body of the filling level probe. The flow switch takes on flow through the full jet another Switching position as when drying the flow. Accordingly, when the flow switch is immersed in the liquid level, the flow will be torn off so that the switching process achieved thereby can serve to determine the level reached.
Bevorzugt weist die Füllstandsonde mindestens eine Elektrode zur Bestimmung des Füllstandes auf, wobei die Elektrode bevorzugt am unteren Ende eines Sondenkörpers der Füllstandsonde angeordnet ist, und wobei die Elektrode besonders bevorzugt stromabwärts einer an einem Sondenkörper ausgebildeten Strömungsabrisskante angeordnet ist. Auf diese Weise liegt die Elektrode bei Vorliegen der Strömung durch den Vollstrahl in einem im Wesentlichen flüssigkeitsfreien Bereich. Wenn der Flüssigkeitsspiegel aber so weit gestiegen ist, dass die Elektrode eintaucht, kann hier über die Flüssigkeit eine elektrische Leitung hergestellt werden. Auf diese Weise kann auch dies zur Bestimmung des Erreichens des vorgegebenen Füllstandes verwendet werden.Preferably, the filling level probe has at least one electrode for determining the filling level, the electrode preferably being arranged at the lower end of a probe body of the filling level probe, and the electrode being particularly preferably arranged downstream of a flow breaking edge formed on a probe body. In this way, when the flow through the jet is present, the electrode lies in a substantially liquid-free region. However, if the liquid level has risen so far that the electrode is immersed, an electrical line can be produced here via the liquid. In this way, this can also be used to determine the achievement of the predetermined level.
Der Füllstand kann auch bestimmt werden, wenn die Füllstandsonde mindestens einen optischen Sensor aufweist, wobei der optische Sensor bevorzugt eine Veränderung des Brechungsindex, eine Veränderung der Absorption, der Reflexion oder der Transmission messen kann. Auf diese Weise kann der Füllstand sehr zuverlässig und verschleißfrei bestimmt werden.The fill level can also be determined if the fill level probe has at least one optical sensor, wherein the optical sensor can preferably measure a change in the refractive index, a change in the absorption, the reflection or the transmission. In this way, the level can be determined very reliable and wear-free.
Noch eine weitere Möglichkeit zur Bestimmung des Füllstandes ergibt sich, wenn mindestens ein Drucksensor zur Bestimmung des hinter einer Strömungsabrisskante eines Sondenkörpers vorliegenden Druckunterschiedes vorgesehen ist.Yet another possibility for determining the filling level is obtained if at least one pressure sensor is provided for determining the pressure difference present behind a flow separation edge of a probe body.
Die oben genannten mechanischen und optischen Lösungen haben unter anderem den Vorteil, dass die elektrische Leitfähigkeit der eingefüllten Flüssigkeit nicht mehr ausschlaggebend dafür ist, ob die Füllstandsonde betätigt wird. Insbesondere können nun auch Flüssigkeiten füllstandgesteuert eingefüllt werden, welche elektrische Leitfähigkeiten von unter 20 µS/cm aufweisen.The above-mentioned mechanical and optical solutions have, inter alia, the advantage that the electrical conductivity of the filled liquid is no longer decisive for whether the filling level probe is actuated. In particular, liquids can now be filled level controlled, which have electrical conductivities of less than 20 μS / cm.
Am unteren Ende des Sondenkörpers kann auch ein Schwimmer vorgesehen sein, welcher mit ansteigendem Flüssigkeitsspiegel ebenfalls ansteigt und dadurch einen Schalter betätigt. Ein solcher Schwimmer kann auch federbeaufschlagt sein, derart, dass er durch die Strömung des Vollstrahles nach unten gespült wird, entgegen der Federbeaufschlagung, und dann erst mit steigendem Flüssigkeitsspiegel angehoben wird.At the lower end of the probe body and a float may be provided, which also increases with increasing liquid level and thereby actuates a switch. Such a float may also be spring-loaded, such that it is flushed by the flow of the full jet down, against the spring action, and then raised only with increasing liquid level.
Bevorzugt ist das Füllorgan mit einem Vollstrahlfüllelement versehen, welches einen kegelförmigen Flüssigkeitsauslauf und einen darin angeordneten Ventilkegel aufweist, wobei durch Anheben des Ventilhebels ein Auslauf des Produktes aus dem Vollstrahlfüllelement erreicht werden kann. Am Flüssigkeitsauslauf lässt sich hier nun ein zu befüllender Behälter, beispielsweise über eine Zentrierglocke, anbringen.Preferably, the filling member is provided with a Vollstrahlfüllelement having a conical liquid outlet and a valve cone arranged therein, wherein by lifting the valve lever, an outlet of the product can be achieved from the Vollstrahlfüllelement. At the liquid outlet can now be a container to be filled, for example, via a centering, attach.
Bevorzugte weitere Ausführungsformen und Aspekte der vorliegenden Erfindung werden durch die nachfolgende Beschreibung der Figuren näher erläutert. Dabei zeigen:
Figur 1- schematisch den Aufbau eines Füllorgans;
Figur 2- schematisch eine erste Variante einer Füllstandsonde mit einem Rotationskörper;
Figur 3- schematisch eine weitere Variante einer Füllstandsonde mit einem Strömungsschalter;
Figur 4- schematisch ein Füllorgan mit einer Füllstandsonde, welche Elektroden umfasst;
Figur 5- schematisch ein Füllorgan mit einer optischen Füllstandsonde;
- Figur 6
- ein weiteres Füllorgan mit einer Füllstandsonde, welche einen weiteren optischen Sensor aufweist;
- Figur 7
- schematisch ein weiteres Füllorgan mit einer auf Unterdruck reagierenden Füllstandsonde; und
- Figur 8
- das Füllorgan der
Figur 7 mit einer Füllstandsonde bei einem anderen Flüssigkeitsspiegel.
- FIG. 1
- schematically the structure of a filling member;
- FIG. 2
- schematically a first variant of a level probe with a rotary body;
- FIG. 3
- schematically a further variant of a level probe with a flow switch;
- FIG. 4
- schematically a filling member with a filling level probe, which comprises electrodes;
- FIG. 5
- schematically a filling member with an optical level probe;
- FIG. 6
- a further filling element with a filling level probe, which has a further optical sensor;
- FIG. 7
- schematically another filling member with a responsive to vacuum level probe; and
- FIG. 8
- the filling organ of
FIG. 7 with a level probe at a different liquid level.
Im Folgenden werden bevorzugte Ausführungsbeispiele anhand der Figuren beschrieben. Dabei werden gleiche, ähnliche oder gleichwirkende Elemente mit identischen Bezugszeichen bezeichnet und auf eine wiederholte Beschreibung dieser Elemente wird in der nachfolgenden Beschreibung teilweise verzichtet, um Redundanzen in der Beschreibung zu vermeiden.In the following, preferred embodiments will be described with reference to the figures. In this case, the same, similar or equivalent elements are denoted by identical reference numerals and a repeated description of these elements will be omitted in the following description in part to avoid redundancy in the description.
In der in
Eine solche Konstruktion wird beispielsweise im Bereich der Getränkeabfüllung häufig verwendet, um nicht-schäumende und sauerstoffunempfindliche Flüssigkeiten effizient in Behälter einzufüllen. Dies ist beispielsweise bei der Abfüllung von stillen Wässern in Flaschen der Fall.Such a construction is often used, for example in the field of beverage filling, to efficiently fill non-foaming and oxygen-insensitive liquids in containers. This is the case, for example, when bottling still bottled water.
Das Vollstrahlfüllelement 10 weist zur Regelung des Flüssigkeitsstromes einen konusförmigen Ventilsitz 12 auf, in welchen ein Ventilkegel 14 zur Abdichtung eingreifen kann. In dem in
Der Flüssigkeitsspiegel 32 in dem Behälter 2 steigt mit dem über den Vollstrahl 3 zugeführten Flüssigkeitsvolumen an. Eine Steuerung des Füllstandes der Flüssigkeit 30 in dem Behälter 2 wird über eine Füllstandsonde 4 erreicht, welche das Erreichen eines vordefinierten Füllstandes bestimmt. Unter Füllstand wird hier der Abstand zwischen der Mündung 20 des Behälters 2 und dem dann anstehenden Flüssigkeitsspiegel 32 verstanden. Auf diese Weise wird erreicht, dass die Behälter optisch gleichmäßig befüllt werden - unabhängig von dem leicht variierenden Innenraumvolumen bestimmter Behältertypen.The
Die Füllstandsonde 4 in
Der Sondenkörper 40 schließt in der in
Durch die Anordnung des Sondenkörpers 40 direkt anschließend an den Ventilkegel 14 liegt der Sondenkörper 40 zentriert zum Produktauslauf 16, so dass die Füllstandsonde 4 symmetrisch zum Vollstrahl 3 angeordnet ist. Bei einem kreisförmigen Querschnitt des Vollstrahls 3 liegt der Sondenkörper 40 entsprechend genau auf der Längsachse des Vollstrahls 3. Mit anderen Worten ist die Füllstandsonde 4 von keiner Seite aus zugänglich, ohne dass man durch den Vollstrahl 3 hindurch müsste.Due to the arrangement of the
Wie aus der in
In der in
Das Strömungsverhalten des Vollstrahls 3 an der Füllstandsonde 4 übt eine Kraft auf diese in Strömungsrichtung aus, welche in
Die Messung der Kraft Fn, welche von dem einlaufenden Vollstrahl 3 auf den Sondenkörper 40 ausgeübt wird, kann beispielsweise über eine Wägezelle 5 stattfinden. Da es sich hier - abhängig von der Stirnfläche des Sondenkörpers 40 - um relativ geringe Kräfte handelt, ist eine empfindliche Wägezelle 5 vonnöten. Zur Bestimmung, ob der vorgegebene Füllstand erreicht wird, wird eine Differenzbetrachtung zur der auf den Sondenkörper 40 anfänglich ausgeübten Kraft Fn über die Zeit vorgenommen. Wenn die Kraft Fn auf einen gewissen vorgegebenen Wert abgesunken ist, weil der Sondenkörper beginnt, in den Flüssigkeitsspiegel 32 einzutauchen, wird der Ventilkegel 14 abgesenkt und die Befüllung beendet.The measurement of the force F n , which is exerted by the incoming
In einer weiteren Variante, welche in
Eine Füllstandsonde 4 ist auch in diesem Ausführungsbeispiel vorgesehen, wobei die Füllstandsonde 4 einen Sondenkörper 40 aufweist, der sich quasi als Verlängerung direkt an den Ventilkegel 14 des Vollstrahlfüllelementes 10 anschließt. Die Flüssigkeit 30 zur Befüllung steht oben an dem Vollstrahlfüllelement 10 an, so dass durch das Anheben des Ventilkegels 14 aus dem Ventilsitz 12, in der Form, wie es in
Am unteren Ende des Sondenkörpers 40 ist wiederum eine Strömungsabrisskante 42 derart ausgebildet, dass der Sondenkörper 40 eine im Wesentlichen zylindrische Form annimmt. Ein Paar Elektroden 54 ist an der Stirnseite 44 des Sondenkörpers 40 vorgesehen. Die Elektroden 54 sind als Kurzschlusselektroden ausgebildet. Die beiden Elektroden 54 sind im Zentrum der Stirnfläche des Sondenkörpers 40 und entsprechend hinter der Strömungsabrisskante 42 angeordnet. Entsprechend bildet sich aufgrund der Strömungsabrisskante 42 unterhalb des Sondenkörpers 40 im Bereich von dessen Stirnfläche 44 bei Vorliegen einer Strömung ein flüssigkeitsfreier Bereich 34 aus. Durch den flüssigkeitsfreien Bereich 34, welcher sich hinter der Abrisskante 42 ausbildet, kommen jedoch die beiden Elektroden 54 nicht dauerhaft über die Flüssigkeit in elektrisch leitende Verbindung. Erst wenn der Flüssigkeitsspiegel 32 so weit angestiegen ist, dass die beiden Elektroden 54 in die Flüssigkeit 30 eintauchen, findet ein entsprechender elektrischer Kontakt statt, welcher dann das Erreichen des gewünschten Füllstandes signalisiert.At the lower end of the
In
Durch die entsprechenden Strömungseigenschaften bildet sich auch hier bei Anliegen einer Strömung durch den Vollstrahl 3 ein flüssigkeitsfreier Bereich 34 unterhalb des Sondenkörpers 40 aus.Due to the corresponding flow properties, a liquid-
Zur Feststellung, ob der vorgegebene Füllstand erreicht ist, ist in der in
Vorteilhaft ist es ebenso möglich, dass das Austrittsfenster 574 auch die Funktion des Eintrittsfensters 576 übernimmt. In dieser Variante enden die beiden Lichtwellenleiter 570 und 572 vorteilhaft in einem gemeinsamen Ein- und Austrittsfenster (nicht gezeigt), d. h. der Lichtwellenleiter für die Aussendung des Lichtstrahls und der Lichtwellenleiter für den Empfang des reflektierten Lichtstrahls enden beide am gemeinsamen Ein- und Austrittsfenster. Die beiden Lichtwellenleiter können dabei bevorzugt auch parallel zueinander angeordnet sein. Hierbei ist es auch möglich, dass lediglich ein einziger Lichtwellenleiter zum Aussenden und den Empfang des Lichtstrahls dient.Advantageously, it is also possible that the
In noch einem weiteren Ausführungsbeispiel, welches in den
In
Soweit anwendbar können alle einzelnen Merkmale, die in den einzelnen Ausführungsbeispielen dargestellt sind, miteinander kombiniert und/oder ausgetauscht werden, ohne den Bereich der Erfindung zu verlassen.As far as applicable, all the individual features illustrated in the individual embodiments can be combined and / or exchanged without departing from the scope of the invention.
- 11
- FüllorganFilling head
- 1010
- VollstrahlfüllelementVollstrahlfüllelement
- 1212
- Ventilsitzvalve seat
- 1414
- Ventilkegelshuttle
- 1616
- Flüssigkeitsauslaufliquid outlet
- 1818
- Zentrierglockecentering
- 22
- Behältercontainer
- 2020
- Mündungmuzzle
- 2222
- Halsneck
- 2424
- Behältervolumencontainer volume
- 33
- Vollstrahljet
- 3030
- Flüssigkeitliquid
- 3232
- Flüssigkeitsspiegel im BehälterLiquid level in the container
- 3434
- Flüssigkeitsfreier BereichLiquid-free area
- 44
- Füllstandsondelevel probe
- 4040
- Sondenkörperprobe body
- 4242
- StrömungsabrisskanteFlow separation edge
- 4444
- Stirnseitefront
- 55
- KraftmessvorrichtungForce measuring device
- 5050
- Rotationskörperbody of revolution
- 5252
- Strömungsschalterflow switch
- 520520
- Anströmelementincident-flow
- 522522
- Gelenkjoint
- 5454
- Elektrodeelectrode
- 5656
- optischer Sensoroptical sensor
- 560560
- Fensterwindow
- 562562
- Lichtleiteroptical fiber
- 5757
- optischer Sensoroptical sensor
- 570570
- erster Lichtwellenleiterfirst optical fiber
- 572572
- zweiter Lichtwellenleitersecond optical fiber
- 574574
- Austrittsfensterexit window
- 576576
- Eintrittsfensterentrance window
- 5858
- Bohrungdrilling
- 580580
- Drucksensorpressure sensor
- Fn F n
- Auf die Füllstandsonde vom Vollstrahl ausgeübte KraftForce exerted on the level probe by the full jet
- FAnström F inflow
- Auf das Anströmelement vom Vollstrahl aufgebrachte KraftOn the inflow of the full jet force applied
Claims (13)
dadurch gekennzeichnet, dass
die Füllstandsonde (4) so unterhalb des Vollstrahlfüllelementes (10) angeordnet ist, dass sie beim Befüllen im Vollstrahl (3) liegt.Filling element (1) for filling containers (2) with a liquid (30), comprising a full-jet filling element (10) for filling the container (2) in the solid jet (3) and a filling level probe (4) for determining the filling level,
characterized in that
the filling level probe (4) is arranged below the full-jet filling element (10) such that it lies in the solid jet (3) during filling.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110056370 DE102011056370A1 (en) | 2011-12-13 | 2011-12-13 | Filler for filling containers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2604572A1 true EP2604572A1 (en) | 2013-06-19 |
EP2604572B1 EP2604572B1 (en) | 2016-02-24 |
Family
ID=47561099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12196561.0A Active EP2604572B1 (en) | 2011-12-13 | 2012-12-11 | Filling head for filling containers |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2604572B1 (en) |
CN (1) | CN103159155B (en) |
DE (1) | DE102011056370A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110979771A (en) * | 2019-12-24 | 2020-04-10 | 安徽沛愉包装科技有限公司 | Non-contact liquid filling device |
CN110979772A (en) * | 2019-12-24 | 2020-04-10 | 安徽沛愉包装科技有限公司 | Non-contact liquid filling liquid level control method |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016104185A1 (en) | 2016-03-08 | 2017-09-14 | Khs Gmbh | filler |
CN107555382A (en) * | 2017-10-17 | 2018-01-09 | 新乡市恒星科技有限责任公司 | A kind of measured lubrication fat bottle filling device |
CN111003229B (en) * | 2019-12-24 | 2022-05-13 | 安徽沛愉包装科技有限公司 | Liquid level control method for non-contact liquid filling by positive pressure method |
CN110979773B (en) * | 2019-12-24 | 2022-04-29 | 安徽沛愉包装科技有限公司 | High-efficient filling device of non-contact liquid |
CN111003230B (en) * | 2019-12-24 | 2022-05-03 | 安徽沛愉包装科技有限公司 | Liquid level control method by negative pressure non-contact liquid filling |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2603573A1 (en) * | 1986-04-18 | 1988-03-11 | Rizo Lopez Juan | Improvements to automatic bottling systems |
US4787428A (en) * | 1986-07-21 | 1988-11-29 | Seva | Container filling apparatus with selectively communicated chambers |
EP0341627A1 (en) * | 1988-05-10 | 1989-11-15 | KHS Maschinen- und Anlagenbau Aktiengesellschaft | Filling head |
FR2800723A1 (en) * | 1999-11-09 | 2001-05-11 | Gangloff Scoma Ind | Liquid filling nozzle, for bottles and other containers, has level detection and air release tubes fitted concentrically in valve-controlled filler tube |
DE102008029208A1 (en) | 2008-06-19 | 2009-12-24 | Krones Ag | Freistrahlfüllsystem |
WO2010003666A1 (en) * | 2008-07-10 | 2010-01-14 | Khs Ag | Filling element and filling machine for filling bottles or similar containers |
WO2010131271A1 (en) * | 2009-05-11 | 2010-11-18 | Sidel, S.P.A. | Filling method and valve |
EP2343518A1 (en) * | 2009-12-23 | 2011-07-13 | Krones AG | Measurement probe for determining the fill state of a liquid |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PT1860057E (en) * | 2006-05-24 | 2009-08-11 | Sidel Holdings & Technology Sa | Valve unit for filling machines with level reading probe in electrically isolating duct |
CN201240825Y (en) * | 2008-05-29 | 2009-05-20 | 周数理 | Electrode type liquid level controllable filling apparatus |
-
2011
- 2011-12-13 DE DE201110056370 patent/DE102011056370A1/en not_active Withdrawn
-
2012
- 2012-12-11 CN CN201210532081.0A patent/CN103159155B/en active Active
- 2012-12-11 EP EP12196561.0A patent/EP2604572B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2603573A1 (en) * | 1986-04-18 | 1988-03-11 | Rizo Lopez Juan | Improvements to automatic bottling systems |
US4787428A (en) * | 1986-07-21 | 1988-11-29 | Seva | Container filling apparatus with selectively communicated chambers |
EP0341627A1 (en) * | 1988-05-10 | 1989-11-15 | KHS Maschinen- und Anlagenbau Aktiengesellschaft | Filling head |
FR2800723A1 (en) * | 1999-11-09 | 2001-05-11 | Gangloff Scoma Ind | Liquid filling nozzle, for bottles and other containers, has level detection and air release tubes fitted concentrically in valve-controlled filler tube |
DE102008029208A1 (en) | 2008-06-19 | 2009-12-24 | Krones Ag | Freistrahlfüllsystem |
WO2010003666A1 (en) * | 2008-07-10 | 2010-01-14 | Khs Ag | Filling element and filling machine for filling bottles or similar containers |
WO2010131271A1 (en) * | 2009-05-11 | 2010-11-18 | Sidel, S.P.A. | Filling method and valve |
EP2343518A1 (en) * | 2009-12-23 | 2011-07-13 | Krones AG | Measurement probe for determining the fill state of a liquid |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110979771A (en) * | 2019-12-24 | 2020-04-10 | 安徽沛愉包装科技有限公司 | Non-contact liquid filling device |
CN110979772A (en) * | 2019-12-24 | 2020-04-10 | 安徽沛愉包装科技有限公司 | Non-contact liquid filling liquid level control method |
CN110979772B (en) * | 2019-12-24 | 2022-05-13 | 安徽沛愉包装科技有限公司 | Non-contact liquid filling liquid level control method |
Also Published As
Publication number | Publication date |
---|---|
EP2604572B1 (en) | 2016-02-24 |
CN103159155B (en) | 2015-10-21 |
CN103159155A (en) | 2013-06-19 |
DE102011056370A1 (en) | 2013-06-13 |
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