EP3898497B1 - Dispositif de remplissage - Google Patents

Dispositif de remplissage Download PDF

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Publication number
EP3898497B1
EP3898497B1 EP19818000.2A EP19818000A EP3898497B1 EP 3898497 B1 EP3898497 B1 EP 3898497B1 EP 19818000 A EP19818000 A EP 19818000A EP 3898497 B1 EP3898497 B1 EP 3898497B1
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EP
European Patent Office
Prior art keywords
pressure
keg
filling
opening
kegs
Prior art date
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Active
Application number
EP19818000.2A
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German (de)
English (en)
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EP3898497A1 (fr
Inventor
Thomas Matheyka
Hilmar FICKERT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KHS GmbH
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KHS GmbH
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Publication of EP3898497A1 publication Critical patent/EP3898497A1/fr
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Classifications

    • 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
    • B67C3/007—Applications of control, warning or safety devices in filling machinery
    • 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
    • B67C3/30—Filling of barrels or casks
    • B67C3/34—Devices for engaging filling-heads with filling-apertures

Definitions

  • the present invention relates to a filling device comprising at least one filling element with a filling tube for flange connection to a KEG fitting of a KEG, in which filling tube a plunger can be moved axially in order to counteract the residual pressure and/or with a retaining spring of the KEG fitting to open the KEG to cooperate.
  • the axial movement of the ram is effected by means of an actuating device which has a piston which can be moved in a pressure cylinder and which is connected to the ram or forms the ram, the actuating device comprising at least one pressure chamber which is arranged in the pressure cylinder and which is connected to a pressure source via at least one control valve is connectable to move the piston towards the KEG fitting, which filling device further comprises a pressure sensor for the actuating pressure in the pressure chamber.
  • Each KEG has a KEG fitting as the outlet valve, which usually includes a retaining spring.
  • the actuation pressure for opening the KEG fitting is referred to here as the "opening pressure", which is often also referred to as the "ram opening pressure”.
  • KEGs There are now different types of KEGs, namely returnable KEGs and non-returnable KEGs.
  • One-way KEGs are made of thin-walled plastic, in particular PET or a PET material, and reusable KEGs are made of metal recyclable material, such as steel, aluminum, etc., much stronger plastic materials or hybrid materials made of metal and plastic.
  • One-way KEGs are filled with a filling pressure of between 2 and 3 bar, while the filling pressure of returnable KEGs is preferably between 3 and 41 ⁇ 2 bar.
  • beverages containing beer and soft drinks containing CO 2 are bottled. It can happen that a KEG fitting has no residual pressure or is defective, which means that the KEG fitting opens even at very low pressures, the wrong type of KEG reaches the filler/station or that a KEG Fitting can no longer be opened.
  • KEGs their fittings and the basic structure of a KEG filler are known from, among other things U.S. 2007/0169834 A1 or the DE 3 813 410 A1 . Furthermore, disposable KEGs and their fittings are out WO 2014/170699 A1 known.
  • a filling device for filling KEGs according to the preamble of claim 1 is from WO 2015/169579 A1 known.
  • the filling device described above contains an evaluation device which is connected to at least one pressure sensor in a data-conducting manner and which is designed to detect the opening pressure of a KEG or its outlet valve. This means recording the actuation pressure in the pressure chamber and/or the force on the tappet or piston at which the KEG fitting opens. As will be explained below, the opening pressure or the force can be detected, for example, via the pressure curve and possibly in connection with the position of the tappet or piston.
  • the evaluation device is also designed to compare this ascertained opening pressure with at least one stored reference pressure or reference pressure profile and to admit or reject the KEG for the filling process depending on the result of the comparison.
  • Defective or incorrect KEGs can be separated out from the outset by detecting the opening pressure and comparing it with at least one, preferably several, stored reference pressures or reference pressure curves. If, for example, a return spring of a KEG fitting is broken, a KEG has too little residual pressure or the fitting of a disposable KEG opens under a lower reference pressure, for example below 2 bar, then this KEG is discarded and no more approved for a filling process. The same applies if the keg fitting does not open at all, ie the keg fitting does not open up to an upper reference pressure. In this case it is assumed that the KEG fitting is defective. For example, the closure may be badly bonded or corroded.
  • the KEG is no longer permitted for the filling process and is separated from the filling device, for example by means of a transport device.
  • the invention can be used to perform this check for defective KEGs on either non-returnable KEGs or returnable KEGs, with the upper and lower reference values being different for these two different types of KEGs.
  • the upper and lower reference values just mentioned are higher for returnable KEGs than for non-returnable KEGs because the design of the KEG fitting is closed with a stronger spring and/or has a higher residual pressure than is the case with non-returnable KEGs.
  • the invention can thus also be used to differentiate returnable KEGs from non-returnable KEGs via the opening pressure to be applied. For example, if the opening pressure is between 2 and 21 ⁇ 2 bar, the keg is assumed to be non-returnable. In this case, an incorrect KEG could subsequently be ejected or the treatment stations could be completely or partially deactivated.
  • the main application is to sort out defective or wrong KEGs, where the KEG fitting no longer opens because the opening pressure is too low or not at all.
  • the filling device preferably has a controller which is designed to completely or partially interrupt the filling process depending on the comparison result and in particular to eject the incorrect KEG identified in this way from the filling device or downstream from the transport route by means of a transport device. If it is determined that the opening pressure is outside, ie below or above the lower reference pressure, the KEG is not admitted for filling but is immediately ejected from the filling device by means of the transport device. In this way, defective KEGs can be identified and immediately excluded from further processing.
  • the evaluation device is designed to allow a KEG for the filling process if the opening pressure is preferably above a lower and below an upper reference pressure, ie in a permissible reference pressure range.
  • the evaluation device is preferably designed to evaluate the course of the actuating pressure over time and to interpret a pressure maximum as the opening pressure.
  • the pressure When pressure is applied to the plunger, the pressure usually increases until the counter-pressure of the counter-spring in the KEG fitting and/or the residual pressure in the KEG is overcome and the KEG fitting opens. At this point, the pressure usually drops again. There is thus a pressure peak which is preferably interpreted as the opening pressure. In this way, the opening pressure can be recognized solely via the pressure curve over time.
  • At least one position sensor is provided for at least one position of the piston or tappet, in particular for the rest position.
  • the evaluation device is designed to evaluate the signal from the position sensor for detecting the opening pressure. As soon as the resistance of the KEG fitting or the residual pressure is overcome with increasing actuation pressure and the KEG fitting opens, the plunger moves slightly out of its resting position, which is detected by the position sensor. The evaluation device can thus detect the time of opening via the position sensor, and thus also the correlated opening pressure via the pressure sensor. Of course, the pressure curve over time as well as the signal from the position sensor can be combined in order to verify the detection of the opening time.
  • the invention also relates to a method for filling non-returnable and returnable KEGs provided with KEG fittings by means of a filling device which has a filling element to be connected to the KEG fitting with a filling tube and a plunger which can be moved axially in the filling tube by means of an actuating device is designed to work together with the KEG fitting to open the KEG.
  • a filling device which has a filling element to be connected to the KEG fitting with a filling tube and a plunger which can be moved axially in the filling tube by means of an actuating device is designed to work together with the KEG fitting to open the KEG.
  • the opening pressure of the KEG fitting is recorded and compared to at least one reference pressure or profile. Depending on the result of the comparison, the KEG is approved for the filling process or not.
  • the filling device is preferably terminated depending on the result of the comparison and the KEG is ejected from the filling device by means of a transport device.
  • a defective KEG can be detected if the opening pressure is below a specified lower reference pressure, in which case the KEG fitting is obviously defective or there is insufficient residual pressure or the opening pressure is above an upper reference pressure or that KEG has not yet opened when the upper reference pressure is exceeded, in which case the KEG fitting is obviously jammed, stuck or corroded and must therefore also be removed from the filling process.
  • non-returnable KEGs it is also possible to distinguish non-returnable KEGs from reusable KEGs because the reference opening ranges for both KEG types differ significantly, since reusable KEGs are filled with a higher pressure than non-returnable KEGs. The associated residual pressures and the reference ranges for returnable KEGs are therefore significantly higher than those of non-returnable KEGs.
  • the opening pressure is preferably detected via the pressure profile over time, in particular a pressure peak with a subsequent drop in the pressure profile.
  • the opening pressure can be detected via the position of the plunger, since the plunger moves slightly out of its resting position when the KEG is opened.
  • the actuating device is preferably hydraulic or pneumatic. Alternatively, it can also be actuated electrically. In this case, it is not the actuating pressure that is detected when the fitting is opened, but analogously the torque or the electric current flowing through the motor when the KEG fitting is opened.
  • pressure source-pressurized fluid source whereby here generally under filling also the temporary filling with liquid or gaseous cleaning media is to be understood, not just filling with one or more products.
  • FIG. 1 shows a filling element 10 of a filling device, which has a filling pipe 12 into which a product feed 16 and a compressed gas feed 18 for pressure filling a KEG opens.
  • the filling tube 12 of the filling element 10 can be flanged to a KEG via an upper flange 14 at the free end of the tube 12.1 (not shown).
  • the KEG to be filled as well as other transport, support and treatment elements are known to the person skilled in the art and are therefore not further illustrated here.
  • a ram 20 is guided so that it can move axially, usually vertically up and down.
  • the ram 20 is moved by an actuating device 21 which contains a piston 22 which can be moved in a hydraulic pressure cylinder 24 .
  • the piston 22 contains a plate-shaped extension 23, the outer circumference of which bears against the inner wall of the pressure cylinder 24 in a pressure-tight manner, preferably by means of a seal.
  • a lower pressure chamber 26 is formed in the pressure cylinder 24 below the plate-shaped widening 23 of the piston 22 and is connected to a hydraulic pressure supply line 28 which is connected to a pressure source 32 via a control valve 30 .
  • the piston 22 driving the plunger 20 can be pressed in the direction of the free pipe end 12.1 or the flange 14 in order to open a KEG. All of these components belong to the actuating device 21 for the ram 20.
  • the ram 20 is not shown in its entirety here, nor is its interaction with the fitting of the KEG, these elements and mode of operation being in the prior art are known.
  • the control valve 30 is controlled by a controller 34 of the filling device.
  • an upper pressure chamber 37 is formed in the figure 1 is not recognizable because of the high position of the extension 23.
  • a pressure discharge line 38 which in turn is also connected via a control valve, not shown, to a pressurized fluid container, for example the pressure source 32, in order to move the piston 22 downwards in order to close the KEG fitting after the filling process.
  • the controller 34 is connected to a pressure sensor 36 which detects the actuation pressure in the pressure supply line 28 and thus also in the lower pressure chamber 26 .
  • An evaluation device 40 is arranged in connection with the control 34, e.g.
  • the filling element 10 can have a position sensor 42 for the rest position of the ram, as shown here, for example, the output signal of the position sensor 42 also being fed to the controller 34 and thus also to the evaluation device 40 .
  • the KEG fitting of a KEG is pressed against this filling element 10 by means of a pressing device, not shown, which acts on the bottom of the KEG in a known manner.
  • the pressure chamber 26 of the hydraulic cylinder 24 is then pressurized via the pressure supply line 28 by the actuation of the control valve 30 .
  • the time profile of the application pressure which occurs via the pressure sensor 36 when a KEG is filled, is shown, for example, in 2 played back.
  • the application pressure measured by the pressure sensor 36 in the lower pressure chamber 26 or the pressure supply line 28 is plotted in bar at the top, while the time over the filling process is plotted in seconds to the right.
  • the pressure chamber 26 is slowly pressurized in phase I until at the time t o at the opening pressure p o the KEG fitting against the pressure of the im
  • the counter spring arranged in the KEG fitting opens, whereupon the pressure drops again in phase II after the KEG has been opened and the opening resistance has been overcome. As a result, a peak P is formed.
  • phase III the pressure rises again slightly when the KEG is filled and ends in a plateau in phase IV. Any process-related pressure fluctuations in the actual filling phases III and IV are not shown because they are not relevant to the invention.
  • the loading pressure is reduced in phase V in order to move the ram away from the KEG fitting or to close the fitting again and complete the filling.
  • Figure 3a shows a lower impermissible reference range a, which extends from about 0 to 1.6 bar.
  • a permissible reference pressure range for non-returnable KEGs which extends from about 1.6 bar to 2.6 bar, is reproduced with the reference symbol b.
  • a permissible reference pressure range c for returnable KEGs is reproduced, which extends from about 3 to 4.3 bar.
  • An upper impermissible reference pressure range d is arranged above this.
  • the opening pressure p o which is measured with the pressure sensor 36 at the peak P or is recorded via the movement of the position sensor 42, is in the reference pressure range a, it is assumed that the KEG fitting is defective overall because it is below a minimum value opens early. In this case, the filling or follow-up process is aborted and the KEG fitting is rejected as defective.
  • the permissible reference pressure range b for one-way KEGs lies between a lower reference value R ue and an upper reference value R oe . If the opening pressure p o moves in this reference pressure range b, it is assumed that it is a one-way KEG.
  • the upper reference pressure R oe for one-way KEGs corresponds to the lower reference pressure R um for returnable KEGs, which forms the lower limit for the permissible reference pressure range c for returnable KEGs.
  • a KEG is thus identified as a returnable KEG if the opening pressure is between the lower reference pressure R um for returnable KEGs and the upper reference pressure R om for returnable KEGs.
  • the opening pressure is above the upper reference pressure value R om for returnable KEGs or if the KEG fitting does not open at all, it is assumed that the KEG is also defective and it is excluded from the filling process. Due to the detection and evaluation of the opening pressure, it is therefore possible to distinguish between defective KEGs with, for example, worn KEG fittings, KEG fittings that can no longer be opened, as well as non-returnable KEGs and reusable KEGs.
  • reference pressure ranges are essentially identical to those of Figure 3a with the difference that the reference pressure ranges b and c for one-way and refillable KEGs are spaced apart by a transition area e, so that the upper reference pressure p o for a one-way KEG is not identical to the lower reference pressure R um for returnable KEGs .
  • Such a definition of the reference pressure ranges allows for greater variation in the distinction between non-returnable and reusable KEGs. The assumption here is that when the KEG fitting is opened in the pressure transition area, the KEG fitting closure of a reusable KEG is too weak, so that this KEG must also be ejected.
  • the respective reference ranges can be defined more narrowly or broadly and provided accordingly on the control side.

Landscapes

  • Automatic Assembly (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Seal Device For Vehicle (AREA)
  • Formation And Processing Of Food Products (AREA)

Claims (12)

  1. Dispositif de remplissage pour le remplissage de fûts, comprenant au moins un élément de remplissage (10) avec un tube de remplissage (12) comprenant une extrémité de tube libre (12.1) destinée à être bridée ou pressée sur un raccord de fût du fût, tube de remplissage (12) dans lequel un poussoir (20) est disposé de manière mobile axialement, afin de coopérer avec un ressort de retenue du raccord de fût pour l'ouverture du fût, dans lequel le mouvement axial du poussoir (20) s'effectue au moyen d'un système d'actionnement (21), qui présente un piston (22) mobile dans un cylindre de pression (24), lequel est relié au poussoir (20) ou forme le poussoir (20), dans lequel le système d'actionnement (21) comprend au moins une chambre de pression (26) disposée dans le cylindre de pression (24), qui peut être reliée par l'intermédiaire d'au moins une conduite d'amenée de pression (28) ainsi que d'au moins une soupape de commande (30) à une source de pression (32), afin de déplacer le piston (22) en direction sur l'extrémité de tube libre (12.1) et un raccord de fût pouvant être disposé à cet endroit, caractérisé en ce que le dispositif de remplissage comprend en outre un capteur de pression (30) pour la pression d'actionnement dans la chambre de pression (26) et/ou conduite d'amenée de pression (28), et que le dispositif de remplissage présente un système d'évaluation (40), qui est relié au capteur de pression (30) de manière à transmettre des données, et qui est conçu pour détecter la pression d'ouverture (po) d'un fût ou d'un raccord de fût dans la chambre de pression (26) et/ou conduite d'amenée de pression (28) et pour comparer cette pression d'ouverture (po) à au moins une pression de référence et/ou variation de pression de référence mise en mémoire, et pour autoriser ou non le processus de remplissage pour le fût en fonction du résultat de la comparaison.
  2. Dispositif de remplissage selon la revendication 1, caractérisé en ce que le dispositif de remplissage présente une commande (34), laquelle est conçue pour interrompre le processus de remplissage en fonction du résultat de la comparaison et pour évacuer le fût du dispositif de remplissage au moyen d'un dispositif de transport.
  3. Dispositif de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que le système d'évaluation (40) est conçu pour admettre un fût pour le processus de remplissage lorsque la pression d'ouverture (po) se situe au-dessus d'une pression de référence inférieure et au-dessous d'une supérieure.
  4. Dispositif de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce que le système d'évaluation (40) est conçu pour évaluer la variation temporelle de la pression d'actionnement et pour interpréter une pression maximale en tant que pression d'ouverture.
  5. Dispositif de remplissage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il présente un capteur de position (42) pour au moins une position du poussoir (20), et que le système d'évaluation (40) est conçu pour évaluer le signal du capteur de position (42) pour la détection de la pression d'ouverture.
  6. Procédé pour le remplissage de fûts à usage unique et réutilisables pourvus de raccords de fût au moyen d'un dispositif de remplissage, qui présente un tube de remplissage (12) à relier au raccord de fût, et un poussoir (20) mobile axialement dans le tube de remplissage (12) au moyen d'un système d'actionnement (21), qui est conçu pour coopérer par le déplacement axial avec le raccord de fût pour l'ouverture du fût, caractérisé en ce que
    la pression d'ouverture (po) du raccord de fût est détectée et comparée à au moins une pression de référence, et qu'en fonction du résultat de la comparaison le fût est admis pour le processus de remplissage ou non.
  7. Procédé selon la revendication 6, caractérisé en ce que le processus de remplissage est interrompu en fonction du résultat de la comparaison et le fût est évacué du dispositif de remplissage au moyen d'un dispositif de transport.
  8. Procédé selon l'une quelconque des revendications 6 ou 7, caractérisé en ce que la pression d'actionnement est comparée à une pression de référence inférieure (Rue) mise en mémoire, et que le fût est évacué comme défectueux lorsque la pression de référence inférieure (Rue) n'est pas atteinte.
  9. Procédé selon l'une quelconque des revendications 6 à 8, caractérisé en ce que la pression d'actionnement est comparée à une pression de référence supérieure (Rom) mise en mémoire et que le fût est évacué comme défectueux lorsque la pression de référence supérieure (Rom) est dépassée.
  10. Procédé selon l'une quelconque des revendications 6 à 9, caractérisé en ce que la pression d'ouverture est détectée par l'intermédiaire d'un pic de pression (po, to).
  11. Procédé selon l'une quelconque des revendications 6 à 10, caractérisé en ce que la pression d'ouverture est détectée par l'intermédiaire de la position (42) du poussoir (20) ou d'une partie du dispositif de remplissage mobile conjointement avec celle-ci.
  12. Procédé selon l'une quelconque des revendications 6 à 11, caractérisé en ce qu'il est mis en oeuvre dans un dispositif de remplissage selon l'une quelconque des revendications 1 à 6.
EP19818000.2A 2018-12-20 2019-12-05 Dispositif de remplissage Active EP3898497B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018133126.6A DE102018133126A1 (de) 2018-12-20 2018-12-20 Füllvorrichtung
PCT/EP2019/083854 WO2020126523A1 (fr) 2018-12-20 2019-12-05 Dispositif de remplissage

Publications (2)

Publication Number Publication Date
EP3898497A1 EP3898497A1 (fr) 2021-10-27
EP3898497B1 true EP3898497B1 (fr) 2023-02-08

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Application Number Title Priority Date Filing Date
EP19818000.2A Active EP3898497B1 (fr) 2018-12-20 2019-12-05 Dispositif de remplissage

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Country Link
US (1) US11518664B2 (fr)
EP (1) EP3898497B1 (fr)
DE (1) DE102018133126A1 (fr)
ES (1) ES2938443T3 (fr)
PT (1) PT3898497T (fr)
WO (1) WO2020126523A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11891292B2 (en) * 2020-07-01 2024-02-06 Craft Standard Enterprises, Inc. Apparatus, system and method for filling a beverage container

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813410A1 (de) 1988-04-21 1989-11-02 Seitz Enzinger Noll Masch Verfahren sowie pruefvorrichtung zum erkennen von undichtigkeiten der verbindung zwischen einem behandlungskopf und einem auf diesen behandlungskopf mit seinem keg-fitting aufgesetzten keg
JP2926203B2 (ja) * 1992-11-06 1999-07-28 株式会社 エスジー ガラス壜の不良検査装置
DE102005031573A1 (de) 2005-07-06 2007-01-11 Khs Ag Behandlungsstation für KEG's
EP2557040B1 (fr) * 2005-12-02 2015-02-18 Baxter Corporation Englewood Procédé amélioré de remplissage automatisé de liquide médical
DE202009001197U1 (de) * 2009-01-31 2010-06-24 Malek Brautech Gmbh Behandlungsvorrichtung für Behälter
DE102011111496B3 (de) * 2011-08-30 2012-06-06 Khs Gmbh Hubelement mit ausfahrbarer Spülhülse
GB201307088D0 (en) 2013-04-19 2013-05-29 Simpson Kenneth L Valve-spear fitting for a keg
DE102014106203A1 (de) * 2014-05-05 2015-11-05 Khs Gmbh Behandlungskopf sowie Behälterbehandlungsmaschine mit einem Behandlungskopf
DE102015116532A1 (de) * 2015-09-30 2017-03-30 Khs Gmbh Verfahren sowie Behandlungsstation und Behandlungskopf zur Behandlung der Innenräume von KEGs sowie Dichtung zur Verwendung bei einer derartigen Behandlungsstation

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Publication number Publication date
WO2020126523A1 (fr) 2020-06-25
US11518664B2 (en) 2022-12-06
ES2938443T3 (es) 2023-04-11
US20210395065A1 (en) 2021-12-23
PT3898497T (pt) 2023-03-07
DE102018133126A1 (de) 2020-06-25
EP3898497A1 (fr) 2021-10-27

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