EP2803625B1 - Filling unit of a container filling machine, having improved storing capability - Google Patents
Filling unit of a container filling machine, having improved storing capability Download PDFInfo
- Publication number
- EP2803625B1 EP2803625B1 EP14001723.7A EP14001723A EP2803625B1 EP 2803625 B1 EP2803625 B1 EP 2803625B1 EP 14001723 A EP14001723 A EP 14001723A EP 2803625 B1 EP2803625 B1 EP 2803625B1
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- EP
- European Patent Office
- Prior art keywords
- filling
- container
- pressure
- operations
- during
- Prior art date
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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
- B67C3/007—Applications of control, warning or safety devices in filling machinery
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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
- B67C3/283—Flow-control devices, e.g. using valves related to filling level control using pressure sensing means
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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
- B67C3/287—Flow-control devices, e.g. using valves related to flow control using predetermined or real-time calculated parameters
Definitions
- the present invention relates to a filling unit of a filling machine, designed for filling containers with a product, for example a carbonated liquid.
- the present disclosure relates to a filling unit with analysis and storing capability for improved quality monitoring and data analysis with respect to the filling operations being performed.
- a system comprising a feed line for feeding a succession of empty bottles to a filling machine, in turn comprising a filling rotating wheel (so called "carousel"), carrying a number of filling units.
- the filling units are mounted to rotate continuously about a longitudinal axis, engage the empty bottles, feed pressurized gas into the bottles, fill the bottles with the product, decompress the filled bottles, and then feed the bottles to a capping machine, which is connected to the filling machine by at least one transfer wheel and closes the bottles with respective caps.
- the aim of the present invention is consequently to solve, at least in part, the problem previously highlighted, and in general to provide an improved solution for a filling unit in a filling machine, particularly with respect to control and monitoring of its operation.
- Figure 1 schematically shows a machine, denoted as a whole with 1, for filling liquid into containers 2, for example glass bottles or aluminum cans.
- Filling machine 1 comprises a conveying device, including a carousel 4, which is mounted to rotate continuously (anticlockwise in Figure 1 ) about a substantially vertical longitudinal axis A.
- the carousel 4 receives a succession of empty containers 2 from an input wheel 5, which is coupled to carousel 4 at a first transfer station 6 and is mounted to rotate continuously about a respective vertical longitudinal axis B, parallel to axis A.
- the carousel 4 releases a succession of filled containers 2 to an output wheel 8, which is coupled to carousel 4 at a second transfer station 9 and is mounted to rotate continuously about a respective vertical longitudinal axis C, parallel to axes A and B.
- Filling machine 1 comprises a number of filling units 10, which are equally spaced about axis A, are mounted along a peripheral edge of carousel 4, and are moved by the same carousel 4 along a path P extending about axis A and through transfer stations 6 and 9.
- Each filling unit 10 is designed to receive at least one container 2 to be filled, and to perform, during its rotation along path P, a number of filling operations according to a filling "recipe", in order to fill the container 2 with a fluid (e.g. a carbonated liquid).
- a fluid e.g. a carbonated liquid
- the filling unit 10 is configured to engage the container 2, at an opening of a neck 2' thereof, and includes one or more fluidic conduits, which are designed to selectively couple the container 2 to one or more feed devices.
- a filling unit 10 which includes: a first fluidic conduit 11a, coupled to a first feed device 12a, designed to supply the liquid that is to fill the container 2, such as beer, from a first feed tank (not shown); a second fluidic conduit 11b, coupled to a second feed device 12b, designed to supply a gas, such as carbon dioxide, from a second feed tank (not shown); and a third fluidic conduit 11c, coupled to an air-suction device 12c (e.g. including a vacuum pump), providing a suction action to extract gases from the bottle during a vacuum phase.
- an air-suction device 12c e.g. including a vacuum pump
- Each filling unit 10 also comprises at least one flow regulator device 14, designed to define one or more filling passages 15 (only one of which is schematically shown in Figure 2 ) communicating with the opening at the neck 2' of the container 2, and including a valve group 16, coupled to the above first, second and third fluidic conduits 11a, 11b, 11c, and operable to selectively couple one or more of the same first, second and third fluidic conduits 11a, 11b, 11c (and thus the first feed device 12a, the second feed device 12b and/or the air-suction device 12c) with the one or more filling passages 15, during filling of the container 2.
- a flow regulator device 14 designed to define one or more filling passages 15 (only one of which is schematically shown in Figure 2 ) communicating with the opening at the neck 2' of the container 2, and including a valve group 16, coupled to the above first, second and third fluidic conduits 11a, 11b, 11c, and operable to selectively couple one or more of the same first, second and third fluidic conduits
- sensor element 17 includes a pressure sensor, which is configured to monitor the pressure (or vacuum condition) within the container 2 during each step of the filling recipe; the presence of the sensor element 17 allows to collect relevant diagnostic information for the analysis and monitoring of the filling operations, and also to perform control actions and adjustments in real time during the same filling operations.
- sensor element 17 allows to perform a number of operations, among which:
- sensor element 17 proves useful also in different operating conditions of the filling machine 1, e.g. during a cleaning/sterilization operation, when dummy containers (e.g. dummy bottles) are placed in the filling machine 1 and a cleaning fluid is introduced.
- dummy containers e.g. dummy bottles
- Monitoring pressure values at the flow regulator devices 14 allows in this case to check the correct passage of the cleaning fluid through the flow regulator devices 14 into the dummy bottles (and this is particularly useful in case no flow-meters are present at the openings of the containers 2).
- the sensor element 17 arranged in at least one of the filling units 10 further includes a temperature sensor, which may for example be integrated with the pressure sensor, in order to detect the temperature of the filling fluid during filling operations, and/or of the cleaning fluid during cleaning operations.
- a temperature sensor which may for example be integrated with the pressure sensor, in order to detect the temperature of the filling fluid during filling operations, and/or of the cleaning fluid during cleaning operations.
- monitoring of the temperature values within the containers 2 allows to perform controls and adjustments in real time during execution of the operations of the filling machine 1, e.g. during filling or recirculation of the filling fluid, or during cleaning/sanitizing of the flow regulator devices 14, in general providing important diagnostic information to be used in real time or at a later stage (during a post-processing stage) to control the filling machine 1.
- a disclosure of a filling unit 10 of the filling machine 1 will now be discussed with reference to Figures 3 to 5 .
- filling unit 10 includes a main body 20, having a vertical extension along a longitudinal axis D, that is substantially parallel to axis A of carousel 4.
- the main body 20 has a bottom part 20a, which ends at a flange 22, that is mechanically coupled to the periphery of the carousel 4, and an upper part 20b, which is coupled to the first fluidic conduit 11a, in order to receive the filling liquid from the first feed device 12a (here not shown).
- the bottom part 20a of the main body 20 defines a container receiving part 24 of the filling unit 10, coupled to the flange 22 and designed to receive the neck 2' of the container 2 that is to be filled.
- the main body 20 internally defines filling passage 15 (not shown in Figures 3-5 ), from the first fluidic conduit 11a to the opening of the container 2, at the container receiving part 24, which selectively allows the passage of the filling fluid towards the container 2, during preset steps of the filling recipe.
- Suitable actuatable elements such as a valve or shutter element (here not shown), are provided within the main body 20, cooperating with the filling passage 15 in order to modify the section of passage to the fluid, e.g. between a fully open, a partially open, or a closed condition, according to the different requirements envisaged by the filling operations.
- the second fluidic conduit 11b of the filling unit 10 is coupled to the container receiving part 24, below flange 22, and allows to receive gas, such as carbon dioxide, from the second feed device 12b (here not shown).
- the flow regulator device 14 of the filling unit 10 includes a housing 26, which has a vertical extension substantially parallel to longitudinal axis D, and is mechanically coupled to main body 20.
- housing 26 of the flow regulator device 14 suitable actuator elements are provided, which are configured to cooperate with the actuatable elements within the body 20, in order to fully open, partially open, or close the filling passage 15.
- the flow regulator device 14 carries, at a bottom part 14a thereof, the third fluidic conduit 11c (operating as a decompression channel), having one end coupled to the air-suction device 12c, and the other end fitted into the opening of the container 2, through flange 22.
- the sensor element 17 (of a known type, here not discussed in detail) is mounted to the flow regulator device 14, so as to continuously monitor the pressure within the internal environment of the container 2.
- the sensor element 17 may be coupled to the third fluidic conduit 11c.
- the sensor element 17 includes a sensing part 17a, housing a suitable sensing arrangement (of a known type), and an input port 17b, coupled to the third fluidic conduit 11c, and allowing fluidic connection between the sensing part 17a and the same third fluidic conduit 11c.
- the sensor element 17 has an end part 17c, coupled to, and extending towards the outside of, the housing 26, carrying suitable electrical connection elements (e.g. in the form of electrical contacts or pads), in order to output the transduced electrical quantity (e.g. a capacitive or resistive variation), indicative of the sensed pressure.
- the housing 26 of the flow regulator device 14 carries, at an outer surface thereof, a wiring element 28, electrically coupled to end part 17c, and extending along the longitudinal axis toward a top part 14b of the same flow regulator device 14.
- the top part 14b may be releasably coupled to the housing 26, via a suitable mechanical connection, and may house an electronic board of a control module 30 of the filling unit 10 (here schematically shown), integrating suitable electronic circuitry (as discussed in more details below); the wiring element 28 in this case ends at the control module 30, being electrically connected thereto.
- a further aspect which will now be discussed in connection with Figure 6 , envisages the filling unit 10 having both electronic intelligence and storage capacity, integrated in suitable electronic circuitry of the control module 30. It is to be noted that some (at least one), or all, of the filling units 10 of the filling machine 1 may be made as it will now be discussed.
- control module 30 includes:
- computing unit 32 may store in storage memory 34 pressure and temperature operating data relating to the filling operations in real time, i.e. during execution of the same operations; to this end, signals from the sensor element 17 may be sampled with a desired sampling frequency and processed to generate the operating data to be stored.
- the stored pressure and temperature operating data may be transferred to the external environment via the communication interface module 38, again in real time, during execution of the filling operations, or after the filling recipe has been completed, for processing and analysis, e.g. by central computing unit, again in real time or as post-processing operations.
- Figure 7 shows an exemplary result of the processing of the stored operating data, i.e. a plot of the pressure values sensed during the various steps of the filling recipe.
- the plot shows the succession in time of: a first air-extraction operation (denoted with S 1 ); a first pressurization operation (denoted with S 2 ); a second air-extraction operation (denoted with S 3 ); a second pressurization operation (denoted with S 4 ); the filling operation at a substantially constant pressure (denoted with S 5 ); and a final depressurization operation (denoted with S 6 ).
- This plot may be displayed on a user panel at the filling machine 1, or at a remote location from the filling machine, e.g. at a supervisory facility.
- Computing unit 32 may also be configured (e.g. via suitable software and program instructions) to process in real time the operating data, in order e.g. to detect a fault in the filling unit 10, or a serious failure event, such as bursting of the container 2 being filled.
- An alarm signal may thus be promptly generated and suitable corrective actions performed, such as stopping of the filling machine 1.
- the intelligence on-board the filling unit 10 allows to more reliably and promptly identify any problem or anomaly occurring in the filling machine 1, so as to achieve a desired quality control of the operations performed.
- control modules 30 of a number of filling units 10 in the filling machine 1 communicate with a central control unit 40 of the same filling machine 1 over a communication bus 42.
- central control unit 40 includes an industrial programmable controller (PLC), and communication bus 42 is a digital communication bus (e.g. a CAN bus), transferring digital information, signals and commands.
- PLC industrial programmable controller
- communication bus 42 is a digital communication bus (e.g. a CAN bus), transferring digital information, signals and commands.
- control modules 30 communicate with the communication bus 42, and thereby with the central control unit 40, via the respective communication interface modules 38 coupled to the respective computing unit 32.
- the central control unit 40 is coupled to the communication bus 42 and may also be coupled with a supervisor unit 45, e.g. located remotely with respect to the filling machine 1, via a remote wireless link 46.
- a supervisor unit 45 e.g. located remotely with respect to the filling machine 1, via a remote wireless link 46.
- the central control unit 40 is thus able to receive operating data from the various filling units 10, in real time during execution of the filling recipe, and/or after the same filling recipe has been completed, reading the operating data stored in the respective storage memories 34.
- the communication bus 42 also allows the central control unit 40 to transmit to the various control modules 30 data relating to the operating condition of the filling machine 1 and data regarding the operations to be performed, in order to assist execution of the filling recipe; for example, these data may include pressure values in the feed tanks, relating to the pressure of the filling fluid and/or gas within the same feed tanks (these data may be used by the slave units to control the filling operations and diagnose possible faults and anomalies).
- the central control unit 40 is also provided with suitable software and program instructions in order to process the received operating data, either in real time or as post-processing operations, in order to determine the occurrence of faults, the correctness of the filling operations, the need of performing adjustments, etc.
- the central control unit 40 may be able to execute further plots of the received operating data, such as sensed pressure values, possibly with different time scales and number of samples involved.
- Figure 9 shows an exemplary plot executed by the central control unit 40, which may be displayed on a related display and/or sent wirelessly to the supervisor unit 45.
- the shown plot relates to a filling step of the recipe, at a substantially constant pressure.
- the provision of sensor elements 17 integrated in the filling units 10 allows to collect operating data relating to the performance of the individual filling units 10, during the filling operations, thus allowing to closely monitor the performance of the filling machine 1.
- the provision of processing and/or storage capability in the filling units 10 allows to simplify transmission and post-processing of the operating data that are collected during the filling operations.
- only a portion of the collected data may be transmitted to the central control unit 40 of the filling machine 1, e.g. only data that are considered relevant for the quality checks, thus saving storage capacity.
- each intelligent filling unit 10 may be configured to control filling of more than one container (e.g. having a corresponding number of flow regulator devices 14 and filling means).
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- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Description
- The present invention relates to a filling unit of a filling machine, designed for filling containers with a product, for example a carbonated liquid. In particular, the present disclosure relates to a filling unit with analysis and storing capability for improved quality monitoring and data analysis with respect to the filling operations being performed.
- In the field of bottling of carbonated liquid, like beer, in containers, like glass bottles or aluminum cans, a system is known comprising a feed line for feeding a succession of empty bottles to a filling machine, in turn comprising a filling rotating wheel (so called "carousel"), carrying a number of filling units. The filling units are mounted to rotate continuously about a longitudinal axis, engage the empty bottles, feed pressurized gas into the bottles, fill the bottles with the product, decompress the filled bottles, and then feed the bottles to a capping machine, which is connected to the filling machine by at least one transfer wheel and closes the bottles with respective caps.
- The Applicant has realized that known filling machines may suffer from some drawbacks concerning the accuracy and generally the quality of the filling operations.
- Indeed, it may prove difficult to ensure that the correct filling parameters are satisfied during each step of the filling recipe; in this regard, controls and checks performed after the filling process has been completed may not be sufficient to guarantee that the bottled fluid product has the desired properties.
- Known from
WO-02/068266-A1 claim 1. - The aim of the present invention is consequently to solve, at least in part, the problem previously highlighted, and in general to provide an improved solution for a filling unit in a filling machine, particularly with respect to control and monitoring of its operation.
- According to the present invention, a filling unit, and a related filling machine, are thus provided, as defined in the appended claims.
- For a better understanding of the present invention, preferred embodiments thereof are now described, purely by way of a non-limiting example, with reference to the attached drawings, wherein:
-
Figure 1 is a schematic view of a filling machine; -
Figure 2 is a schematic block diagram of a filling unit of the filling machine ofFigure 1 ; -
Figure 3 to 5 are perspective views of a filling unit of the filling machine ofFigure 1 ; -
Figure 6 is a schematic block diagram of an electronic control module of the filling unit of the filling machine; -
Figure 7 is a plot of the pressure in a container being filled, during execution of filling operations; -
Figure 8 is a schematic block diagram of a digital communication system in the filling machine comprising a filling unit, according to an embodiment of the present invention; and -
Figure 9 is a further plot of the pressure in a container being filled, during execution of the filling operations. -
Figure 1 schematically shows a machine, denoted as a whole with 1, for filling liquid intocontainers 2, for example glass bottles or aluminum cans. -
Filling machine 1 comprises a conveying device, including acarousel 4, which is mounted to rotate continuously (anticlockwise inFigure 1 ) about a substantially vertical longitudinal axis A. - The
carousel 4 receives a succession ofempty containers 2 from aninput wheel 5, which is coupled tocarousel 4 at afirst transfer station 6 and is mounted to rotate continuously about a respective vertical longitudinal axis B, parallel to axis A. - The
carousel 4 releases a succession of filledcontainers 2 to anoutput wheel 8, which is coupled tocarousel 4 at asecond transfer station 9 and is mounted to rotate continuously about a respective vertical longitudinal axis C, parallel to axes A and B. - Filling
machine 1 comprises a number offilling units 10, which are equally spaced about axis A, are mounted along a peripheral edge ofcarousel 4, and are moved by thesame carousel 4 along a path P extending about axis A and throughtransfer stations - Each
filling unit 10 is designed to receive at least onecontainer 2 to be filled, and to perform, during its rotation along path P, a number of filling operations according to a filling "recipe", in order to fill thecontainer 2 with a fluid (e.g. a carbonated liquid). - The
filling unit 10 is configured to engage thecontainer 2, at an opening of a neck 2' thereof, and includes one or more fluidic conduits, which are designed to selectively couple thecontainer 2 to one or more feed devices. InFigure 2 (which refers to asingle filling unit 10, for clarity of illustration) is schematically shown afilling unit 10 which includes: a firstfluidic conduit 11a, coupled to afirst feed device 12a, designed to supply the liquid that is to fill thecontainer 2, such as beer, from a first feed tank (not shown); a secondfluidic conduit 11b, coupled to asecond feed device 12b, designed to supply a gas, such as carbon dioxide, from a second feed tank (not shown); and a thirdfluidic conduit 11c, coupled to an air-suction device 12c (e.g. including a vacuum pump), providing a suction action to extract gases from the bottle during a vacuum phase. - Each
filling unit 10 also comprises at least oneflow regulator device 14, designed to define one or more filling passages 15 (only one of which is schematically shown inFigure 2 ) communicating with the opening at the neck 2' of thecontainer 2, and including avalve group 16, coupled to the above first, second and thirdfluidic conduits fluidic conduits first feed device 12a, thesecond feed device 12b and/or the air-suction device 12c) with the one ormore filling passages 15, during filling of thecontainer 2. - Filling of the
container 2 is performed according to a desired plan, the so called "recipe", which may for example envisage one or more of the following operations, e.g. performed in a preset sequence: - a first air-extraction operation to remove air from the
container 2 by fluidically coupling thecontainer 2 to the air-suction device 12c; - flushing the
container 2, by feeding a stream of carbon dioxide tocontainer 2, via thesecond feed device 12b; - a second air-extraction operation to remove any remaining air from the
container 2, again by fluidically coupling thecontainer 2 to the air-suction device 12c (so called "snift" operation); - pressurizing the
container 2, by feeding a stream of carbon dioxide intocontainer 2 via thesecond feed device 12b; - filling the
container 2, by feeding a stream of filling liquid, via thefirst feed device 12a; and - depressurizing the
container 2, by fluidically coupling thecontainer 2 to the air-suction device 12c. Eachfilling unit 10 is integrally provided with asensor element 17, which is arranged so as to be fluidically coupled to thefilling passage 15, during filling of thecontainer 2, thereby being able to monitor parameters and quantities associated to the environment within thesame container 2; for example,sensor element 17 may be arranged in theflow regulator device 14, within thefilling passage 15, or so as to be in fluidic communication with thesame filling passage 15. - In particular,
sensor element 17 includes a pressure sensor, which is configured to monitor the pressure (or vacuum condition) within thecontainer 2 during each step of the filling recipe; the presence of thesensor element 17 allows to collect relevant diagnostic information for the analysis and monitoring of the filling operations, and also to perform control actions and adjustments in real time during the same filling operations. - The presence of
sensor element 17 allows to perform a number of operations, among which: - detecting pressure values during all the steps of the recipe, storing these values, and, e.g. after the filling operations are completed, draw pressure plots, which may displayed on an operator panel, in order to allow analysis of the performance of the filling operations;
- monitoring the occurrence of failures, such as bursting of a
container 2, during execution of the recipe steps, e.g. by checking if the sensed pressure values overcome a preset absolute maximum pressure threshold Th1, or a preset differential pressure threshold Th2, relating to the difference of pressure between thecontainer 2 and a respective feed tank; in case any one of the absolute or differential pressure thresholds Th1, Th2, is overcome (this being indicative of a possible failure), the filling operations may be immediately stopped and suitable actions performed in order to safeguard thefilling machine 1. As an alternative, a sudden variation of the sensed pressure associated with burst of thecontainer 2 may be detected by monitoring the pattern of the derivative of the sensed pressure signal; - monitoring the correctness of the vacuum level during the recipe steps envisaging vacuum within the
containers 2, in particular with respect to glass bottles for beer; - monitoring the correct depressurization of the
containers 2 during the recipe steps envisaging depressurization (e.g. during a snift operation). In this case, the sensed pressure values are compared to a decompression pressure threshold Th3, and decompression is considered successful only if the sensed pressure is found to be below the decompression pressure threshold Th3 at the end of the recipe step. - Moreover, the presence of
sensor element 17 proves useful also in different operating conditions of thefilling machine 1, e.g. during a cleaning/sterilization operation, when dummy containers (e.g. dummy bottles) are placed in thefilling machine 1 and a cleaning fluid is introduced. - Monitoring pressure values at the
flow regulator devices 14 allows in this case to check the correct passage of the cleaning fluid through theflow regulator devices 14 into the dummy bottles (and this is particularly useful in case no flow-meters are present at the openings of the containers 2). - According to a further aspect, the
sensor element 17 arranged in at least one of thefilling units 10 further includes a temperature sensor, which may for example be integrated with the pressure sensor, in order to detect the temperature of the filling fluid during filling operations, and/or of the cleaning fluid during cleaning operations. - Also in this case, monitoring of the temperature values within the
containers 2 allows to perform controls and adjustments in real time during execution of the operations of thefilling machine 1, e.g. during filling or recirculation of the filling fluid, or during cleaning/sanitizing of theflow regulator devices 14, in general providing important diagnostic information to be used in real time or at a later stage (during a post-processing stage) to control thefilling machine 1. - A disclosure of a
filling unit 10 of thefilling machine 1 will now be discussed with reference toFigures 3 to 5 . - In this solution,
filling unit 10 includes amain body 20, having a vertical extension along a longitudinal axis D, that is substantially parallel to axis A ofcarousel 4. - The
main body 20 has abottom part 20a, which ends at aflange 22, that is mechanically coupled to the periphery of thecarousel 4, and anupper part 20b, which is coupled to the firstfluidic conduit 11a, in order to receive the filling liquid from thefirst feed device 12a (here not shown). - The
bottom part 20a of themain body 20 defines acontainer receiving part 24 of thefilling unit 10, coupled to theflange 22 and designed to receive the neck 2' of thecontainer 2 that is to be filled. - The
main body 20 internally defines filling passage 15 (not shown inFigures 3-5 ), from the firstfluidic conduit 11a to the opening of thecontainer 2, at thecontainer receiving part 24, which selectively allows the passage of the filling fluid towards thecontainer 2, during preset steps of the filling recipe. Suitable actuatable elements, such as a valve or shutter element (here not shown), are provided within themain body 20, cooperating with thefilling passage 15 in order to modify the section of passage to the fluid, e.g. between a fully open, a partially open, or a closed condition, according to the different requirements envisaged by the filling operations. - The second
fluidic conduit 11b of thefilling unit 10 is coupled to thecontainer receiving part 24, belowflange 22, and allows to receive gas, such as carbon dioxide, from thesecond feed device 12b (here not shown). - The
flow regulator device 14 of thefilling unit 10 includes ahousing 26, which has a vertical extension substantially parallel to longitudinal axis D, and is mechanically coupled tomain body 20. - In a manner not shown in detail, within
housing 26 of theflow regulator device 14 suitable actuator elements are provided, which are configured to cooperate with the actuatable elements within thebody 20, in order to fully open, partially open, or close thefilling passage 15. - Moreover, the
flow regulator device 14 carries, at abottom part 14a thereof, the thirdfluidic conduit 11c (operating as a decompression channel), having one end coupled to the air-suction device 12c, and the other end fitted into the opening of thecontainer 2, throughflange 22. - According to an aspect, the sensor element 17 (of a known type, here not discussed in detail) is mounted to the
flow regulator device 14, so as to continuously monitor the pressure within the internal environment of thecontainer 2. - For example, the
sensor element 17 may be coupled to the thirdfluidic conduit 11c. In more detail, thesensor element 17 includes asensing part 17a, housing a suitable sensing arrangement (of a known type), and aninput port 17b, coupled to the thirdfluidic conduit 11c, and allowing fluidic connection between thesensing part 17a and the same thirdfluidic conduit 11c. Moreover, thesensor element 17 has anend part 17c, coupled to, and extending towards the outside of, thehousing 26, carrying suitable electrical connection elements (e.g. in the form of electrical contacts or pads), in order to output the transduced electrical quantity (e.g. a capacitive or resistive variation), indicative of the sensed pressure. Thehousing 26 of theflow regulator device 14 carries, at an outer surface thereof, awiring element 28, electrically coupled toend part 17c, and extending along the longitudinal axis toward atop part 14b of the sameflow regulator device 14. - The
top part 14b may be releasably coupled to thehousing 26, via a suitable mechanical connection, and may house an electronic board of acontrol module 30 of the filling unit 10 (here schematically shown), integrating suitable electronic circuitry (as discussed in more details below); thewiring element 28 in this case ends at thecontrol module 30, being electrically connected thereto. - A further aspect, which will now be discussed in connection with
Figure 6 , envisages thefilling unit 10 having both electronic intelligence and storage capacity, integrated in suitable electronic circuitry of thecontrol module 30. It is to be noted that some (at least one), or all, of thefilling units 10 of thefilling machine 1 may be made as it will now be discussed. - In particular,
control module 30 includes: - a
computing unit 32, including a microcontroller, or any other processing unit; - a
storage memory 34, coupled to thecomputing unit 32, and configured to store operating data relating to the filling operations being performed, e.g. samples of the pressure or temperature values detected bysensor element 17 and/or other sensed data, such as flow rate measures or electrical current measures from a resistive probe, or in general any other operating data available to thecomputing unit 32, originated from sensors at theflow regulator device 14 or received from external components. For example,storage memory 34 is a buffer memory, which stores operating data relating to execution of a number of filling recipes, circularly overwriting data previously stored; - a
sensor interface module 35, coupled to thecomputing unit 32, configured to acquire the electrical signals from thesensor element 17, related to the pressure and temperature readings, to process the same electrical signals (in case it is required, e.g. via an analog to digital conversion), and to provide the same signals to thecomputing unit 32, which then generates the operating data (e.g. pressure and temperature data) to be stored in thestorage memory 34.Sensor interface module 35 may acquire the sensed signals at a preset sampling period; - an
actuator interface module 36, coupled to thecomputing unit 32 and to actuator elements of theflow regulator device 14, configured to transmit to the same actuator elements commands to actuate the actuatable elements within themain body 20 of the fillingunit 10, these commands being e.g. generated by thecomputing unit 32 based on the operations to be performed according to the filling recipe; - a
communication interface module 38, coupled to thecomputing unit 32, operable to receive and transmit data from/to the external environment, in particular from/to a central control unit (here not shown) of the fillingmachine 1 via a digital communication bus (such as a CAN bus). The central control unit may be able to further process the data, e.g. in order to diagnose faults and problems of the fillingunit 10. - In more details, computing
unit 32 may store instorage memory 34 pressure and temperature operating data relating to the filling operations in real time, i.e. during execution of the same operations; to this end, signals from thesensor element 17 may be sampled with a desired sampling frequency and processed to generate the operating data to be stored. - The stored pressure and temperature operating data may be transferred to the external environment via the
communication interface module 38, again in real time, during execution of the filling operations, or after the filling recipe has been completed, for processing and analysis, e.g. by central computing unit, again in real time or as post-processing operations. -
Figure 7 shows an exemplary result of the processing of the stored operating data, i.e. a plot of the pressure values sensed during the various steps of the filling recipe. - In particular, the plot shows the succession in time of: a first air-extraction operation (denoted with S1); a first pressurization operation (denoted with S2); a second air-extraction operation (denoted with S3); a second pressurization operation (denoted with S4); the filling operation at a substantially constant pressure (denoted with S5); and a final depressurization operation (denoted with S6).
- This plot may be displayed on a user panel at the filling
machine 1, or at a remote location from the filling machine, e.g. at a supervisory facility. -
Computing unit 32 may also be configured (e.g. via suitable software and program instructions) to process in real time the operating data, in order e.g. to detect a fault in the fillingunit 10, or a serious failure event, such as bursting of thecontainer 2 being filled. - An alarm signal may thus be promptly generated and suitable corrective actions performed, such as stopping of the filling
machine 1. - In general, the intelligence on-board the filling
unit 10 allows to more reliably and promptly identify any problem or anomaly occurring in the fillingmachine 1, so as to achieve a desired quality control of the operations performed. - According to an embodiment in accordance with the present invention, which will now be discussed with reference to
Figure 8 , thecontrol modules 30 of a number of fillingunits 10 in the fillingmachine 1 communicate with acentral control unit 40 of thesame filling machine 1 over acommunication bus 42. - In a possible embodiment,
central control unit 40 includes an industrial programmable controller (PLC), andcommunication bus 42 is a digital communication bus (e.g. a CAN bus), transferring digital information, signals and commands. - As shown in
Figure 8 , thecontrol modules 30 communicate with thecommunication bus 42, and thereby with thecentral control unit 40, via the respectivecommunication interface modules 38 coupled to therespective computing unit 32. - The
central control unit 40 is coupled to thecommunication bus 42 and may also be coupled with asupervisor unit 45, e.g. located remotely with respect to the fillingmachine 1, via aremote wireless link 46. - The
central control unit 40 is thus able to receive operating data from the various fillingunits 10, in real time during execution of the filling recipe, and/or after the same filling recipe has been completed, reading the operating data stored in therespective storage memories 34. - The
communication bus 42 also allows thecentral control unit 40 to transmit to thevarious control modules 30 data relating to the operating condition of the fillingmachine 1 and data regarding the operations to be performed, in order to assist execution of the filling recipe; for example, these data may include pressure values in the feed tanks, relating to the pressure of the filling fluid and/or gas within the same feed tanks (these data may be used by the slave units to control the filling operations and diagnose possible faults and anomalies). - The
central control unit 40 is also provided with suitable software and program instructions in order to process the received operating data, either in real time or as post-processing operations, in order to determine the occurrence of faults, the correctness of the filling operations, the need of performing adjustments, etc. - For example, the
central control unit 40 may be able to execute further plots of the received operating data, such as sensed pressure values, possibly with different time scales and number of samples involved. -
Figure 9 shows an exemplary plot executed by thecentral control unit 40, which may be displayed on a related display and/or sent wirelessly to thesupervisor unit 45. The shown plot relates to a filling step of the recipe, at a substantially constant pressure. - The advantages that the described invention allows to achieve are clear from the foregoing description.
- In particular, it is again underlined that an improved analysis capability and control on the quality of the filling operations are achieved in the filling
machine 1. - Indeed, the provision of
sensor elements 17 integrated in the fillingunits 10 allows to collect operating data relating to the performance of theindividual filling units 10, during the filling operations, thus allowing to closely monitor the performance of the fillingmachine 1. - Furthermore, the provision of processing and/or storage capability in the filling
units 10 allows to simplify transmission and post-processing of the operating data that are collected during the filling operations. - In this respect, only a portion of the collected data may be transmitted to the
central control unit 40 of the fillingmachine 1, e.g. only data that are considered relevant for the quality checks, thus saving storage capacity. - Moreover, historical trends may be easily generated, in order to further improve quality assessment.
- Finally it is clear that modifications and variations may be applied to the invention described and shown, without departing from the scope of the appended claims. For example, it is clear that the discussed invention may advantageously be adopted also for different kind of containers, e.g. PET containers, to be filled and/or different kind of filling fluids, e.g. different from food products.
- Moreover, each
intelligent filling unit 10 may be configured to control filling of more than one container (e.g. having a corresponding number offlow regulator devices 14 and filling means).
Claims (4)
- A filling unit (10) of a filling machine (1) having a central control unit (40), said filling unit being designed to engage at least one container (2) to carry out filling thereof with a filling product and including
a flow regulator device (14) defining one or more filling passages (15) and including a valve group (16) configured to regulate flow of the product within the container (2) during filling operations, and integrally provided with
an electronic control module (30), integrating a computing unit (32), configured to acquire operating data during the filling operations, relating to the filling operations being performed, and
a storage memory (34), coupled to the computing unit (32), and configured to store the operating data, during the filling operations, whereby the electronic control module (30) communicates over a communication bus (42) with the central control unit (40), via a communication interface (48) coupled to the computing unit (32), such that the central control unit (40) is able to receive and transmit data from/to the central control unit, characterized in that said storage memory (34) is a buffer memory, storing operating data relating to a number of filling recipes executed in the filling machine (1) and circularly overwriting the data previously stored, a filling recipe including a set of filling operations for filling the container (2) with the filling product,
in that it comprises a sensor element (17) including a pressure sensor (17a), which is fluidically coupled to the filling passage (15) and configured to monitor the pressure or vacuum within the container (2) during each step of the filling recipe;
and in that the central control unit reads the operating data stored in the buffer memory (34) including operating data from the sensor element which is also stored in the buffer memory (34), during the filling operations, and/or after the filling operations for further processing. - The filling unit according to claim 1, characterized in that said pressure sensor (17a) is arranged within the flow regulator device (14) so as to be fluidically coupled with the internal environment of the container (2) during the filling operations, thereby detecting the pressure within the same container (2).
- The filling unit according to claims 1 and 2, wherein said sensor element (17) is further configured to detect a temperature within the container (2) being filled, during the filling operations, and the operating data include pressure and temperature data associated to pressure and temperature values within the container (2), detected during the filling operations, said sensor element (17) being further configured to detect a temperature within the container (2) being filled, during the filling operations.
- The filling unit according to claim 1, wherein the operating data include pressure data associated to pressure values within the container (2), detected during the filling operations, and wherein the computing unit (32) is configured to process the operating data, in order to detect the occurrence of a failure in the filling of the container (2), whenever one of the two following conditions is verified: the pressure within the container (3) is found to exceed a first pressure threshold (Th1); the differential pressure between the container (3) and a tank supplying the filling fluid is found to exceed a second pressure threshold (Th2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14001723.7A EP2803625B1 (en) | 2013-05-15 | 2014-05-15 | Filling unit of a container filling machine, having improved storing capability |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13167942.5A EP2803623A1 (en) | 2013-05-15 | 2013-05-15 | Filling unit of a container filling machine, having improved storing capability |
EP14001723.7A EP2803625B1 (en) | 2013-05-15 | 2014-05-15 | Filling unit of a container filling machine, having improved storing capability |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13167942.5A Previously-Filed-Application EP2803623A1 (en) | 2013-05-15 | 2013-05-15 | Filling unit of a container filling machine, having improved storing capability |
Publications (2)
Publication Number | Publication Date |
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EP2803625A1 EP2803625A1 (en) | 2014-11-19 |
EP2803625B1 true EP2803625B1 (en) | 2017-11-15 |
Family
ID=48430545
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13167942.5A Withdrawn EP2803623A1 (en) | 2013-05-15 | 2013-05-15 | Filling unit of a container filling machine, having improved storing capability |
EP14001723.7A Not-in-force EP2803625B1 (en) | 2013-05-15 | 2014-05-15 | Filling unit of a container filling machine, having improved storing capability |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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EP13167942.5A Withdrawn EP2803623A1 (en) | 2013-05-15 | 2013-05-15 | Filling unit of a container filling machine, having improved storing capability |
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EP (2) | EP2803623A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3064468B1 (en) * | 2015-03-03 | 2017-07-05 | Sidel Participations, S.A.S. | A diagnostic kit and method for monitoring the operating status and reliability of a container processing machine |
EP3378828A1 (en) * | 2017-03-24 | 2018-09-26 | Sidel Participations | Container filling machine, having improved data communication and storing capability |
WO2019048051A1 (en) * | 2017-09-08 | 2019-03-14 | Sidel Participations | System and method for automated adjustment of a container filling machine |
CN111717872A (en) * | 2020-05-24 | 2020-09-29 | 民和丰德生态食品有限公司 | Hot and spicy sauce filling production line and remote data acquisition and real-time analysis system |
DE102021103744A1 (en) * | 2021-02-17 | 2022-08-18 | Krones Aktiengesellschaft | Container treatment plant and method for its operation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3009405C2 (en) * | 1980-03-12 | 1985-01-17 | Seitz Enzinger Noll Maschinenbau Ag, 6800 Mannheim | Method and arrangement for controlling filling elements in filling machines |
DE10008426B4 (en) * | 2000-02-23 | 2011-07-28 | KHS GmbH, 44143 | System and method for filling containers with a liquid product |
ITBO20010108A1 (en) * | 2001-02-28 | 2002-08-28 | Azionaria Costruzioni Automati | MACHINE FOR FILLING CONTAINERS |
JP3872486B2 (en) * | 2004-08-04 | 2007-01-24 | 日本山村硝子株式会社 | Liquid level detection sensor, liquid injection device using the same, automatic volume measuring device for container, and liquid level detection method |
DE102010006028A1 (en) * | 2010-01-27 | 2011-07-28 | KHS GmbH, 44143 | Method and filling system for pressure filling of containers |
-
2013
- 2013-05-15 EP EP13167942.5A patent/EP2803623A1/en not_active Withdrawn
-
2014
- 2014-05-15 EP EP14001723.7A patent/EP2803625B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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EP2803623A1 (en) | 2014-11-19 |
EP2803625A1 (en) | 2014-11-19 |
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