EP4553034A1 - Remplissage d'un récipient par jet libre - Google Patents

Remplissage d'un récipient par jet libre Download PDF

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Publication number
EP4553034A1
EP4553034A1 EP24212061.6A EP24212061A EP4553034A1 EP 4553034 A1 EP4553034 A1 EP 4553034A1 EP 24212061 A EP24212061 A EP 24212061A EP 4553034 A1 EP4553034 A1 EP 4553034A1
Authority
EP
European Patent Office
Prior art keywords
filling
valve
product
container
volume flow
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.)
Pending
Application number
EP24212061.6A
Other languages
German (de)
English (en)
Inventor
Stefan Poeschl
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.)
Krones AG
Original Assignee
Krones AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Krones AG filed Critical Krones AG
Publication of EP4553034A1 publication Critical patent/EP4553034A1/fr
Pending legal-status Critical Current

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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
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/04—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus without applying pressure
    • 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
    • B67C3/286—Flow-control devices, e.g. using valves related to flow rate control, i.e. controlling slow and fast filling phases

Definitions

  • the present invention relates to a device and a method for filling a container with a filling product, preferably a beverage, using the free jet method.
  • a volume flow of the filling product is enabled and interrupted by opening and closing a filling valve.
  • a container to be filled is located below the filling valve at a distance from a filling product outlet, so that when the filling valve is open, the filling product enters the container in a free jet through a container opening. Once the container is filled with the filling product, the filling valve is closed, thus interrupting the filling product flow.
  • Filling devices of this type are typically designed as a rotary conveyor, featuring a filling carousel that rotates around a rotational axis.
  • a multitude of filling valves and corresponding holding devices for the containers are installed on the outer circumference of the filling carousel.
  • the containers to be filled are held by the holding devices and transported along a circular trajectory by the rotation of the filling carousel during filling.
  • An object of the invention is to provide an improved device and an improved method for filling a container with a filling product, preferably a beverage, using the free jet method, in particular to improve the productivity of the filling process.
  • the device is designed for filling a container with a filling product using the free-jet method.
  • the device is particularly preferably used in a beverage filling plant, for example, for filling water (still or carbonated), soft drinks, smoothies, juices, beer, wine, dairy products, mixed drinks, and the like.
  • the device has at least one filling device installed on the filling carousel, in particular on the outer circumference of the filling carousel. It should be noted that typically several, even a plurality of, filling devices are provided on the outer circumference of the filling carousel in order to be able to fill a continuous stream of containers. The use of the singular "container,” “filling device,” etc., therefore primarily serves the purpose of linguistic clarity. The filling of several containers via several filling devices is encompassed here and is generally preferred.
  • the filling element has a product channel for transporting and introducing the filling product into the container, wherein the filling product enters the product channel at a mouth section of the filling element at an exit velocity, bridges a free jet area, and experiences a jet deflection in the free jet area due to the rotation of the filler carousel.
  • the jet deflection depends in particular on the rotation speed of the filler carousel and the exit velocity of the filling product from the outlet section of the filling device.
  • the filling device has a control valve.
  • the function of the control valve is to adjust the desired volume flow of the filling product, i.e., the volume of filling product to be introduced into the container per unit of time.
  • the switching position of the control valve is preferably known and reproducibly adjustable, for example, by using a stepper motor to drive the control valve.
  • the filling device further comprises a filling valve arranged downstream of the control valve and configured to open and close the product channel, wherein multiple opening positions can be realized by the filling valve.
  • the filling device is not a shut-off valve that can only be switched to an open position and a closed position; rather, the filling valve allows multiple opening positions.
  • gradual, non-discrete opening positions can be achieved by the filling valve.
  • the filling valve is thus capable of implementing multiple opening cross-sections of the product channel—either discretely or, preferably, continuously.
  • the filling valve is preferably arranged in the region of the mouth section of the filling device.
  • the device has a control device which is in communication with the control valve and the filling valve and is configured to change the volume flow of the filling product in the product channel by means of the control valve during a filling process and to control the filling valve in such a way that it counteracts the change in the outlet speed of the filling product caused by the change in the volume flow.
  • the change in the outlet velocity of the filling product caused by the change in volume flow through the filling valve can be compensated completely or partially.
  • the term "accompanying" means that the control device controls the control valve and the filling valve in relation to each other. Strict simultaneity or synchronism is possible, but not absolutely necessary, as long as sufficient compensation for the discharge velocity is ensured.
  • control device is configured to control the filling valve during the volume flow change in the product channel, caused by the control valve, such that the exit velocity of the filling product remains essentially constant.
  • a volume flow change along the filling curve leads to little or no change in the jet deflection, ensuring that the filling product is reliably introduced into the container throughout the entire filling process, even at a high angular velocity of the filling carousel.
  • control device is configured to close the control valve, in particular gradually, and to close the filling valve concurrently, preferably synchronously, to terminate the filling process. In this way, the filling process is terminated safely and reliably.
  • control device is configured so that the volume flow in the product channel is determined solely by the control valve, but not by the filling valve.
  • the filling valve therefore does not perform a throttling function with respect to the volume flow, but functions solely to adjust the outlet velocity, which in turn influences the jet deflection.
  • control device is configured to adjust the discharge velocity by controlling the filling valve so that a desired point of impact of the filling product in the container is achieved.
  • Regulating the discharge velocity of the filling product by adjusting the filling valve, thus controlling the jet deflection allows the point of impact of the filling product in the container to be optimized. This can be used, for example, to minimize any foam formation when introducing the filling product into the container.
  • the optimal point of impact i.e. the optimal jet deflection, can be determined in advance through tests or by observing the foam, for example using a camera.
  • the filling valve and/or the control valve is a proportional valve, which allows a reliable adjustment of the desired degree of opening in a steady or continuous manner and thus the coordinated regulation of the filling valve and the control valve can be carried out particularly precisely.
  • the filling valve preferably has a displaceable valve cone arranged in the product channel, which forms an annular gap with an associated valve seat, and a linear actuator connected to the valve cone for displacing the valve cone. Displacement of the valve cone by the linear actuator causes a change in the cross-section of the annular gap, thus a (local) change in the cross-section of the product channel.
  • a valve cone/valve seat arrangement in conjunction with a linear actuator, via which several opening positions of the valve cone can be controlled, represents a mechanically simple and reliable implementation of the filling valve. If necessary, filling valves that were originally designed, for example, as pneumatically actuated shut-off valves, can be converted simply and cost-effectively by replacing the actuator.
  • control device is preferably configured to change the volume flow of the filling product in the product channel by means of the control valve during the filling process and to control the linear actuator in such a way that the resulting cross-sectional change of the annular gap counteracts the change in the outlet speed of the filling product caused by the volume flow change.
  • the linear actuator is configured to gradually move the valve cone between a fully open position and a fully closed position, allowing for particularly fine adjustment of the discharge velocity of the filling product.
  • the linear actuator is preferably an electric linear motor.
  • other drives are also possible, such as a stepper or servo motor in conjunction with a suitable gear to convert the rotational movement into a linear movement.
  • the above-mentioned object is further achieved by a method for filling a container with a filling product, preferably a beverage, using a free-jet method.
  • the method comprises: transporting the container along a partial circle by means of a filling carousel rotating about a rotational axis; during the transport of the container, introducing the filling product into the container via a product channel of a filling device, wherein the filling product leaves the product channel at an outlet section of the filling device at an exit velocity, bridges a free jet area and experiences a jet deflection in the free jet area due to the rotation of the filler carousel; during the introduction of the filling product into the container, changing the volume flow of the filling product in the product channel by means of a control valve of the filling device and, concomitantly, controlling a filling valve arranged downstream of the control valve so that it counteracts the change in the outlet speed of the filling product caused by the change in volume flow.
  • the filling valve is preferably controlled during the volume flow change in the product channel in such a way that the outlet velocity of the filling product remains essentially constant.
  • control valve is preferably closed to terminate the filling process, in particular gradually, with the filling valve being closed concomitantly, preferably synchronously.
  • the volume flow in the product channel is preferably determined solely by the control valve, but not by the filling valve.
  • the outlet speed is preferably adjusted by controlling the filling valve so that a desired point of impact of the filling product in the container is achieved.
  • the filling valve preferably comprises a displaceable valve cone arranged in the product channel, which forms an annular gap with an associated valve seat, and a linear actuator connected to the valve cone for displacing the valve cone, wherein a displacement of the valve cone by the linear actuator causes a change in the cross-section of the annular gap.
  • the linear actuator is controlled in such a way that the resulting cross-sectional change of the annular gap counteracts the change in the outlet speed of the filling product caused by the volume flow change.
  • the Figure 1 shows a schematic plan view of a device 1 for filling containers (not shown in the figures) with a filling product.
  • the device 1 is particularly preferably used in beverage filling, for example, for filling water (still or carbonated), beer, juice, soft drinks, smoothies, dairy products, mixed drinks, and the like.
  • the containers to be filled can be bottles made of glass, PET, cans, cartons, or suitable containers of other types that can be filled with a liquid filling product, in particular a beverage.
  • the device 1 is designed as a rotary device, comprising a filler carousel 10 and, for example, an inlet star 100 and an outlet star 200.
  • the containers to be filled are transferred to the filling carousel 10 via the infeed star 100, which is a transport device for containers also of a rotary design.
  • the filling carousel 10 is rotatable about a rotation axis 11.
  • the filler carousel 10 has a plurality of filling elements 20 on its circumference (cf. Figure 2 ) that are configured to fill the containers with the filling product. Except for a small angular segment between the two transport starwheels 100, 200, which is also referred to as the "filler dead angle," the filling of the containers can essentially occupy the entire circumference of the filler carousel 10 before the containers are transferred to the discharge starwheel 200 for removal after filling.
  • the transport stars 100, 200 can be replaced by other suitable transfer devices, for example linear transport devices, in order to feed the containers to be filled to the filler carousel 10 and to transport the filled containers away.
  • suitable transfer devices for example linear transport devices
  • the transport path that the containers travel through the device 1 is shown in the Figure 1 represented by a thick line along the circumferences of the rotary conveyors, ie the inlet star 100, the filler carousel 10 and the outlet star 200.
  • the Figure 2 shows a filling device 20 for introducing the filling product into a container to be filled.
  • the filling device 20 is designed for free-jet filling, i.e., filling takes place without pressure and without contact between the filling device 20 and the container.
  • the container is not pressed against a mouth section 21 of the filling device 20 for filling, nor is it pre-pressurized with a pressurizing gas.
  • the filling element 20 has a product channel 22 which extends at least partially in a valve housing 23 to the mouth section 21 and is designed to transport the filling product to the mouth section 21, from where the filling product can flow into the container after bridging a free jet area Fb.
  • the filling device 20 has a filling valve 30 configured to open and close the product channel 22 on the outlet side, wherein multiple opening positions, i.e., multiple opening cross-sections of the product channel 22, can be realized by the filling valve 30.
  • the filling valve 30 is a control valve and/or proportional valve that allows a continuous or gradual transition of the valve opening positions.
  • the Figure 2 shows a preferred embodiment of the filling valve 30, in which a valve cone 24 is arranged on the outlet side in the product channel 22.
  • the valve cone 24 has a cylindrical shape that tapers towards the outlet section 21.
  • the valve cone 24 and an associated valve seat 25 form an annular gap 26, which is formed on the inside, at least in sections, by the outer circumferential surface of the valve cone 24.
  • the annular gap 26 is delimited by the valve seat 25, which can be formed by a corresponding shape of the valve housing 23.
  • the valve cone 24 is movable in the axial direction, i.e., up and down. In this way, the annular gap 26 can be enlarged and reduced.
  • the height adjustment of the valve cone 24 occurs within a working range, preferably between a fully open position and a closed position, preferably continuously, actuated by a suitable linear actuator 27.
  • the linear actuator 27 is characterized by the fact that it can move the valve cone 24 into multiple opening positions in a targeted manner. In other words, the linear actuator 27 and the valve cone 24 do not implement a shut-off valve that can only be switched to an open position and a closed position, as would normally be the case with a pneumatically actuated valve cone 24. Instead, the linear actuator 27 implements multiple opening positions, preferably a gradual switching of the valve or a gradual opening position of the annular gap 26. Particularly preferably, the linear actuator 27 is an (electric) linear motor.
  • the linear actuator 27 and the valve cone 24, in cooperation with the valve seat 25, form a proportional valve.
  • the filling device 20 further comprises a control valve 28, which is preferably implemented as a proportional valve.
  • the function of the control valve 28 is to adjust the desired volume flow of the filling product, i.e., the volume of the filling product to be introduced into the container per unit of time.
  • the control valve 28 is arranged upstream of the filling valve 30, in particular the valve cone 24, i.e., upstream of the valve cone 24.
  • the switching position of the control valve 28 is known and can be reproducibly adjusted, for example, by using a stepper motor to drive the control valve 28.
  • the control valve 28 can be used to determine one or more properties of the filling curve, such as the end of filling when a desired filling level is reached, or the filling curve as a whole.
  • the filling device 20 receives the filling product to be filled from a suitable filling product supply, which comprises, for example, a filling product reservoir (not shown in the figures) in the form of a central or ring vessel for intermediate storage and provision of the filling product.
  • a suitable filling product supply which comprises, for example, a filling product reservoir (not shown in the figures) in the form of a central or ring vessel for intermediate storage and provision of the filling product.
  • a flow meter (not shown in the figures) can be installed to control or regulate the filling product flow.
  • This flow meter is designed to detect the fluid quantity or volume flow of the filling product flowing through the product channel 22.
  • the flow meter can also be used to determine the amount of filling product introduced into the container, for example by integrating or summing the determined volume flow. In this way, once a desired filling product level has been reached in the container to be filled, the filling process can be terminated by closing the control valve 28 and the annular gap 26.
  • Other sensors such as load cells and short-circuit probes, can also be used as an alternative to the flow meter.
  • a sensor can be omitted if a time-based filling process is used, which is based, for example, on computational models to determine the volume flow.
  • control and/or regulation of the filling valve 30, in particular the linear actuator 27, and the control valve 28 is handled by a control device 40.
  • the control device 40 is signal-connected to the components of the filling device 20 to be controlled or regulated and/or read out, thus in particular to the linear actuator 27, the control valve 28, and any flow meter.
  • Communication between the control device 40 and the components to be controlled or regulated and/or read can be wired or wireless, digital or analog.
  • the control device 40 can receive and/or transmit signals (control signals, data, etc.) accordingly, whereby both one-way and two-way signal transport fall under the term "communication" in this context.
  • the control device 40 does not necessarily have to be implemented by a central computing device or electronic control system; rather, decentralized and/or multi-level systems, control networks, cloud systems, and the like are included.
  • the control device 40 can also be an integral part of a higher-level system control system or communicate with such a system.
  • the rotation of the filler carousel 10 leads to a jet deflection O of the filling product in the free jet area Fb.
  • the jet deflection O depends on the rotational speed ⁇ of the Filler carousel 10 and the exit speed V0 of the filling product from the mouth section 21 of the filling device 20.
  • the control device 40 is configured to change the volume flow of the filling product during the filling process by means of (i.e., by controlling) the control valve 28 and, at the same time, to control the filling valve 30, in particular to adjust the annular gap 26 by means of (i.e., by controlling) the linear actuator 27 so that it counteracts the change in the exit velocity V0 of the filling product caused by the change in the volume flow.
  • the exit velocity V0 of the filling product should remain within a predetermined interval during the change in the volume flow, preferably constant or substantially constant. In this way, the filling product can be reliably introduced into the container during the entire filling process, even at high rotational speeds ⁇ of the filler carousel 10.
  • the control valve 28 and the linear actuator 27 are thus actuated in relation to one another, in particular in a synchronized manner, by the control device 40.
  • the volume flow of the filling product is adjusted via the control valve 28, while the exit velocity V0 is regulated via the annular gap 26.
  • the annular gap 26 therefore does not perform a throttling function with respect to the volume flow, but rather functions to adjust the exit velocity V0, which in turn influences the jet deflection O.
  • the filling process follows a filling curve that specifies the volume flow as a function of time.
  • the filling curve may comprise three sections.
  • the controller is configured to introduce the filling product into the container at an increasing volume flow during a first section of the filling curve, then to keep the volume flow constant during a second section of the filling curve, and then to gradually reduce the volume flow to zero upon completion of the filling process.
  • the annular gap 26 is gradually reduced simultaneously or slightly offset via the linear actuator 27 such that the outlet velocity V0 is not modified or only slightly modified at a reduced volume flow.
  • the opening process of the control valve 28 at the beginning of the filling process can be accompanied analogously by a gradual opening of the annular gap 26 in order to keep the outlet velocity V0 and thus the jet deflection O constant or to change them only slightly.
  • Regulating the exit velocity V0 by adjusting the annular gap 26, thus controlling the jet deflection O also allows for optimization of the point of impact of the filling product in the container. This can be used, for example, to minimize any foam formation when introducing the filling product into the container.
  • the optimal point of impact i.e., the optimal jet deflection O
  • the optimal jet deflection O can certainly be a function of time, fill level, fill product, position in the filling curve, etc.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
EP24212061.6A 2023-11-10 2024-11-11 Remplissage d'un récipient par jet libre Pending EP4553034A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102023131272.3A DE102023131272A1 (de) 2023-11-10 2023-11-10 Befüllen eines Behälters im Freistrahlverfahren

Publications (1)

Publication Number Publication Date
EP4553034A1 true EP4553034A1 (fr) 2025-05-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP24212061.6A Pending EP4553034A1 (fr) 2023-11-10 2024-11-11 Remplissage d'un récipient par jet libre

Country Status (3)

Country Link
EP (1) EP4553034A1 (fr)
CN (1) CN119975971A (fr)
DE (1) DE102023131272A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199249A2 (fr) * 2008-12-20 2010-06-23 Krones AG Dispositif destiné à embouteiller des boissons contenant des particules
JP2011084324A (ja) * 2009-10-19 2011-04-28 Hitachi Zosen Corp ロータリ式充填設備の非常停止制御方法およびロータリ式充填設備
DE102015111536A1 (de) * 2015-07-16 2017-01-19 Khs Gmbh Verfahren sowie Füllsystem zum Befüllen von Behältern
DE102017130034A1 (de) 2017-12-14 2019-06-19 Krones Ag Verfahren und Vorrichtung zum Abfüllen eines Füllprodukts
DE102020129217A1 (de) 2020-11-05 2022-05-05 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Befüllen von Behältern mit einem Füllprodukt
EP4005971A1 (fr) * 2020-11-05 2022-06-01 Krones Ag Dispositif et procédé de remplissage d'un récipient d'un produit de remplissage
US20230091547A1 (en) * 2020-02-20 2023-03-23 Societe Des Produits Nestle S.A. System for introducing an additive into a container comprising a static microdoser

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016115891A1 (de) * 2016-08-26 2018-03-01 Krones Aktiengesellschaft Abfüllanlage zum Befüllen eines Behälters mit einem Füllprodukt
DE102018130652A1 (de) * 2018-12-03 2020-06-04 Krones Ag Vorrichtung und Verfahren zum Befüllen eines Behälters
DE102023103859A1 (de) * 2023-02-16 2024-08-22 Krones Aktiengesellschaft Vorrichtung zum Befüllen von Behältern und Verfahren zur Überwachung des Füllprozesses

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2199249A2 (fr) * 2008-12-20 2010-06-23 Krones AG Dispositif destiné à embouteiller des boissons contenant des particules
JP2011084324A (ja) * 2009-10-19 2011-04-28 Hitachi Zosen Corp ロータリ式充填設備の非常停止制御方法およびロータリ式充填設備
DE102015111536A1 (de) * 2015-07-16 2017-01-19 Khs Gmbh Verfahren sowie Füllsystem zum Befüllen von Behältern
DE102017130034A1 (de) 2017-12-14 2019-06-19 Krones Ag Verfahren und Vorrichtung zum Abfüllen eines Füllprodukts
US20230091547A1 (en) * 2020-02-20 2023-03-23 Societe Des Produits Nestle S.A. System for introducing an additive into a container comprising a static microdoser
DE102020129217A1 (de) 2020-11-05 2022-05-05 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Befüllen von Behältern mit einem Füllprodukt
EP4005971A1 (fr) * 2020-11-05 2022-06-01 Krones Ag Dispositif et procédé de remplissage d'un récipient d'un produit de remplissage

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Publication number Publication date
CN119975971A (zh) 2025-05-13
DE102023131272A1 (de) 2025-05-15

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