WO2022200018A1 - Appareil et procédé de nettoyage et d'inspection de récipients au moyen de dispositifs d'analyse de gaz - Google Patents

Appareil et procédé de nettoyage et d'inspection de récipients au moyen de dispositifs d'analyse de gaz Download PDF

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Publication number
WO2022200018A1
WO2022200018A1 PCT/EP2022/055601 EP2022055601W WO2022200018A1 WO 2022200018 A1 WO2022200018 A1 WO 2022200018A1 EP 2022055601 W EP2022055601 W EP 2022055601W WO 2022200018 A1 WO2022200018 A1 WO 2022200018A1
Authority
WO
WIPO (PCT)
Prior art keywords
containers
cleaning
inspection
inspection device
transport path
Prior art date
Application number
PCT/EP2022/055601
Other languages
German (de)
English (en)
Inventor
Stefan Schober
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 WO2022200018A1 publication Critical patent/WO2022200018A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/46—Inspecting cleaned containers for cleanliness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/041—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • G01N21/9018—Dirt detection in containers

Definitions

  • the present invention relates to arrangements for washing and inspecting containers.
  • some containers or bottles are reused after they have been used. For this purpose it is necessary that these containers are thoroughly washed.
  • foreign objects or substances in the containers such as oils, petrol, paper clips, paper and the like, which sometimes makes a cleaning process impossible or at least very difficult. It is therefore known from the prior art that such containers are inspected for certain foreign substances before they are cleaned. If certain foreign substances are present, these containers are rejected because they can no longer be cleaned.
  • some very complex systems are known from the internal state of the art of the applicant.
  • SAM module spectrum analysis module
  • mass spectrometer a spectrum analysis module
  • SAM module a spectrum analysis module
  • mass spectrometer a mass spectrometer
  • SAM module a spectrum analysis module
  • mass spectrometer a mass spectrometer
  • these modules for example in the form of a so-called sniffer, should be able to process empty and partially filled containers.
  • aromatic hydrocarbons such as toluene fuels are detected with the SAM module and the mass spectrometer.
  • these two units avoid a significant contamination of the washing machine downstream of these units.
  • these units are usually located after a decapper and before a washing machine. This problem is particularly acute when using plastic containers, since a container made of plastic can absorb certain toxins, particularly in its plastic walls. Despite cleaning agents, these absorbed substances can get back into a liquid at a later point in time.
  • a device is known from WO 98/22809 A1 which determines whether a container is suitable for holding water. This has a receiving device to enable sampling of a gaseous medium from the container. This device can also have a photo identification detector (PID), which can also be used in conjunction with another detector, such as a chemiluminescence detector.
  • PID photo identification detector
  • a mass spectrometer for use in the inspection of containers is disclosed, for example, in EP 0647847 A1.
  • This mass spectrometer is used before the washing process for a reusable PET bottle and is essential in the subject matter of this revelation, since these containers are also very well suited for storing foreign substances of all kinds, such as salad dressings, cleaning agents, petrol, motor oil and the same.
  • DE10 2007 211 653 A1 describes a system and a method for testing the chemical content of plastic containers that move along a test line.
  • a vacuum pump is used for sampling.
  • organic substances e.g. mould
  • the system should rate these containers as "good” (in the sense of cleanable) and feed them to the cleaning machine or washing machine.
  • the system cannot detect the contamination.
  • a memory effect means that, for example, components of the substance to be analyzed remain in the ion source of the mass spectrometer and appear in the spectra in subsequent measurements.
  • the present invention is therefore based on the object, on the one hand, of enabling safe cleaning and also inspection of the containers, but on the other hand of achieving effective protection for the mass spectrometer in particular.
  • a device for cleaning and inspecting containers and in particular beverage containers has a transport device which transports the containers along a predetermined transport path. Furthermore, the device has a first inspection device, which is arranged along the transport path and which is suitable and intended for inspecting the containers in a predetermined manner, with this first inspection device having a first gas analysis device for analyzing (at least before the analysis) an inside gas contained in the containers.
  • the device has a second inspection device, which is arranged along the transport path and which is suitable and intended for detecting sensitive foreign bodies in the container. Furthermore, a cleaning device for cleaning the containers is provided, which is arranged along the transport path after the first and the second inspection device, and a third inspection device for Inspecting the containers, which have a gas analysis device for analyzing (at least prior to this analysis) a gas inside the containers.
  • An inspection of the containers is understood to mean, in particular, an inspection of the containers with regard to foreign bodies or foreign substances located in the container.
  • the third inspection device is arranged after the cleaning device in the transport direction of the containers. In this way it is prevented that this third gas analysis device is not disturbed or destroyed by foreign substances.
  • the arrangement after the cleaning machine ensures that particularly harmful foreign substances are safely removed from the containers before the containers reach the third gas analysis device.
  • the first inspection device is preferably arranged in front of the second inspection device in the transport direction of the containers.
  • At least one inspection device and preferably at least two and preferably all inspection devices are suitable and intended for inspecting the containers during transport.
  • the containers are preferably containers and in particular bottles made of glass or plastic. In particular, it is beverage bottles. In particular, the containers are plastic containers, in particular made of PET. The bottles are particularly preferably refillable returnable bottles.
  • the transport device is preferably suitable and intended for transporting the containers by their bases or by a side wall.
  • the transport device is particularly preferably suitable and intended for transporting the containers along a straight and/or single-track transport path.
  • the first inspection device has a sampling device for removing a portion of a gaseous medium and in particular air from the container.
  • the gas analysis device and/or a gas sensor is preferably arranged outside of the containers to be inspected.
  • the sampling device it would also be conceivable for the sampling device to be suitable for (at least slightly) dipping into the container to be inspected in order to take a sample.
  • the third inspection device or the third gas analysis device preferably also has a sampling device for removing air from the container. This gas analysis device and/or a gas sensor is preferably also arranged outside of the containers to be inspected.
  • the cleaning device cleans the containers with a rinsing medium and in particular a medium which is introduced into the containers via the mouths of the containers. It is also conceivable that the containers are conveyed upside down during this cleaning process.
  • a drying device is provided after this cleaning device in order to dry the cleaned containers. This can be done, for example, by heated air.
  • the cleaning device itself to heat the containers, for example by rinsing them with a heated medium. This heating makes it possible for foreign substances to escape more easily from the walls into the interior of the container, even after the cleaning process, so that they can be analyzed with the analysis device.
  • the cleaning device it would also be possible for the cleaning device to be followed by a heating device in order to achieve or promote the diffusion of substances from the wall.
  • the second inspection device has at least one image recording device which is suitable and intended for recording at least one spatially resolved image of the containers. It is possible for this image recording device to record this image through an opening into the containers.
  • the image recording device may record the image of the containers from below or from the side.
  • the containers it is possible for the containers to be inspected using incident light or transmitted light.
  • the second inspection device preferably has an illumination device which illuminates the containers in particular for the purpose of image recording.
  • the inspection device has a plurality of image recording devices, in particular a plurality of cameras.
  • the first gas analysis device is a spectral analysis device. This preferably serves for a rough analysis of the air in the container.
  • This gas analysis device can be a grating spectrometer, for example.
  • the device preferably has an application device which is suitable for introducing and in particular blowing a gaseous medium and in particular air and in particular pure air and/or sterile air into the container.
  • the device has a suction device in order to suck off a gaseous medium from the containers.
  • This can in particular be the gaseous medium previously blown into the container.
  • this suction device can preferably be arranged directly above the mouth of the container. It would be possible for this suction device to be carried along with the containers or also transported along the transport path of the containers.
  • the third inspection device is or has a mass spectrometer.
  • the cleaning device can be spared or protected from particularly soiled containers.
  • a structure of a system for the detection of coarse impurities in front of suggested cleaning device in front of the marketsein direction, a structure of a system for the detection of coarse impurities in front of suggested cleaning device.
  • this can have a SAM module (a spectral analysis module) and also a large number of cameras for detecting foreign objects such as cigarette butts.
  • Further inspection devices can be provided downstream of the cleaning device, as described above, in particular a mass spectrometer and, if necessary, a spectral analysis module as a substitute or in addition.
  • the device has a fourth inspection device for inspecting an interior of the containers.
  • This fourth inspection device is particularly preferably arranged after the cleaning device and preferably also after the third inspection device.
  • one or more cameras can be used before or after the mass spectrometer, but especially after the cleaning device, especially to inspect the interior of the containers.
  • the inspection device mentioned here can be followed by another inspection device, in particular for inspecting the bottoms of the containers.
  • the invention thus proposes that a robust spectral analysis device or one that serves to detect coarse contamination is preferably arranged in front of the cleaning device.
  • the cleaning device particularly preferably automatically cleans the containers slightly contaminated with foreign substances. This arrangement means that no memory effect occurs in the mass spectrometer. At the same time, a low false rejection can be achieved with a higher detection accuracy of contaminated containers.
  • the device has a first diverting device in order to divert containers from the transport path of the containers, and this diverting device is arranged in front of the cleaning device.
  • Diverting is understood to mean that certain containers are diverted from the transport path of the transported containers, with a large part of the containers preferably being forwarded to the cleaning machine.
  • rejection is understood to mean removal or taking out of the normal transport path used for processing the containers.
  • the diverting device is preferably suitable for diverting individual containers from the transport path.
  • the invention proposes a rejection system for the standing rejection of the containers, since harmful chemicals can be found in the containers, which must not contaminate the filling line or endanger the operating personnel.
  • the rejection system can preferably be a rejection system that rejects the containers to be ejected in an upright position, with the rejection device preferably being fixed in place on the transport route and particularly preferably forming a rejection surface via rejection segments, which engage in the container flow parallel to the transport direction of the containers and are connected to the come into contact with the containers to be rejected.
  • the rejection system can have parallel rejection elements that move with the flow of bottles and can be moved into the flow of bottles for stationary rejection.
  • the first and second inspection device is provided first and then the named diverting device.
  • This diverting device can also be designed as an ejector, for example, which ejects certain containers from the transport path of the containers.
  • the device has a second diverting device to divert containers from the transport path of the containers, and this second diverting device is preferably arranged after the cleaning device and particularly preferably before the third inspection device.
  • This second diverting device is used in particular to divert containers that would damage or impede the third inspection device.
  • the device has an entry detection device which detects entry of the containers at predetermined positions.
  • At least one identification device is preferred and several identification devices are preferably provided for the containers and/or their contents.
  • the detection units IR residual liquid detection, height detection and occlusion detection
  • the detection units preferably protect the gas analysis equipment such as the mass spectrometer and/or the camera units, which can prevent machine malfunctions and improve system performance.
  • an inspection device in the form of an empty bottle inspection device is also provided. This is arranged in particular after the cleaning device described here and preferably also after all inspection devices.
  • the present invention is also directed to a method for cleaning and inspecting containers (and in particular unsealed and/or empty containers), with a transport device transporting the containers along a predetermined transport path and a first inspection device being arranged along the transport path the containers are inspected in a first predetermined manner, with this first inspection device having a first gas analysis device for analyzing a gas located within the containers and with a second inspection device, which is arranged along a transport path, detecting foreign bodies located in the container and with a cleaning device , which is arranged along the transport path after the first and second inspection device, which cleans containers and in particular cleans them with a liquid.
  • a third inspection device analyzes a gas located within the containers by means of a gas analysis device.
  • this third inspection device is arranged after the cleaning device in the transport direction of the containers. In this way, it is proposed that the third gas analysis device carries out the analysis after the containers have been cleaned.
  • a fourth inspection device preferably also inspects the containers, particularly for other foreign bodies.
  • a proportion of the containers are ejected from the transport path before the cleaning device.
  • a proportion of the containers is preferably discharged after the cleaning device. This is done in particular to protect an inspection device that is designed, for example, as a mass spectrometer.
  • the containers are refillable containers and in particular refillable beverage containers. It is particularly preferred to use plastic containers.
  • the containers are transported in one lane, at least in sections.
  • the containers are preferably transported in one lane at least during the inspections described above.
  • the containers can be transported along a straight path or along a path that is curved at least in sections, for example a path that is curved in the shape of a segment of a circle.
  • FIG. 1 shows a schematic representation of a structure according to the invention.
  • FIG. 2 shows a schematic representation to illustrate a sampling from a container.
  • Fig. 1 shows a schematic representation of a device 1 according to the invention for inspecting and cleaning containers 10.
  • the reference number 3 refers to a transport device which transports the containers 10 along a predetermined transport path P transport. This can be a conveyor belt, for example, on which the containers are transported in an upright position. In addition, a transport device would also be conceivable, which transports the containers off the floor, such as lateral guide belts. In addition, the transport device could also be composed of several transport units.
  • the reference number 2 designates a first inspection device which is arranged along the transport path and which inspects the containers transported by the transport device 2 . In this case, this first inspection device 2 has a first gas analysis device, which analyzes a gas located in the containers or the air located in the containers. In addition, the inspection device 2 preferably also has a sampling device, which removes a sample to be analyzed from the containers.
  • the gas analysis device is preferably a spectral analysis device.
  • the reference number 4 designates a second inspection device, which is used in particular to detect objects located in the containers 10 .
  • This inspection device can have one or more image recording devices 42, 44 or cameras.
  • the inspection device can also have lighting devices which illuminate the containers 10 to be inspected, with both an inspection using the incident light method and an inspection using the transmitted light method being conceivable.
  • Reference number 6 designates a cleaning device which cleans or rinses the containers.
  • an application device 62 can be provided which flushes an interior of the containers with a flushing medium such as water or a cleaning agent.
  • the containers can also be blown out with air.
  • the reference number 8 designates a third inspection device, which here in turn has a gas analysis device 82, in particular in the form of a mass spectrometer.
  • Reference number 12 designates a further inspection device such as an empty bottle inspection.
  • the reference number 36 designates a further (optionally present) diversion device which is arranged after the gas analysis device 82 .
  • the containers can be diverted, as indicated by the arrow P3.
  • a diversion device 38 can also be provided, which is arranged after the further inspection device 12 and likewise the containers can derive (arrow P4). This is particularly useful in cases where the individual containers can still be assigned to an analysis result after the inspection device 12 and/or if the gas analysis device 82 is part of the (empty bottle) inspection device 12 .
  • the inspection device 12 and then the gas analysis device 82 (or generally the third inspection device 8) to be provided in the transport direction of the containers.
  • Reference number 32 designates a first diverting device which is arranged in front of the cleaning device and which diverts containers on a diverting path P1. In particular, those containers are rejected that are so badly soiled that they would damage the cleaning device or that they could not be satisfactorily cleaned by the cleaning device 6 .
  • the reference number 34 designates a second diverting device, which is arranged after the cleaning device 6 but before the third inspection device 8 and which diverts containers on a diverting path P2. In particular, such containers are rejected which are still so badly soiled that they could damage the third inspection device 8 .
  • FIG. 2 shows a roughly schematic illustration of a sampling device 20.
  • This has a suction device 22 which sucks off at least part of the air in the container 10 (cf. arrow P5). Part of the extracted air can be fed to the gas analysis device.
  • the suction device 22 can preferably move with the container.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

Appareil de nettoyage et d'inspection de récipients, doté d'un premier dispositif d'inspection (2) qui est disposé le long du trajet de transport (P) et qui convient à l'inspection de récipients (10) dans un premier trajet prédéterminé et qui est prévu ce faire, ce premier dispositif d'inspection ayant un premier dispositif d'analyse de gaz permettant d'analyser un gaz, doté d'un deuxième dispositif d'inspection (4), qui est disposé le long du trajet de transport et qui convient à la détection de corps étrangers dans le récipient et qui est prévu ce faire, doté d'un dispositif de nettoyage (6) permettant de nettoyer les récipients, qui est disposé en aval du premier et du deuxième dispositif d'inspection le long du trajet de transport, et doté d'un troisième dispositif d'inspection (8), qui convient à l'inspection des récipients et qui est prévu pour ce faire. Selon l'invention, le troisième dispositif d'inspection est disposé en aval du dispositif de nettoyage dans le sens de transport des récipients.
PCT/EP2022/055601 2021-03-24 2022-03-04 Appareil et procédé de nettoyage et d'inspection de récipients au moyen de dispositifs d'analyse de gaz WO2022200018A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021107329.4A DE102021107329A1 (de) 2021-03-24 2021-03-24 Vorrichtung und Verfahren zum Reinigen und Inspizieren von Behältnissen mit Gasanalyseeinrichtungen
DE102021107329.4 2021-03-24

Publications (1)

Publication Number Publication Date
WO2022200018A1 true WO2022200018A1 (fr) 2022-09-29

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PCT/EP2022/055601 WO2022200018A1 (fr) 2021-03-24 2022-03-04 Appareil et procédé de nettoyage et d'inspection de récipients au moyen de dispositifs d'analyse de gaz

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Country Link
DE (1) DE102021107329A1 (fr)
WO (1) WO2022200018A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0579999A (ja) * 1991-09-24 1993-03-30 Mitsubishi Heavy Ind Ltd びん内沈降異物の検査装置
DE4302657C1 (de) 1993-01-30 1994-03-03 Holstein & Kappert Maschf Verfahren zur Bestimmung von Kontaminaten in Behältern
WO1994019679A1 (fr) * 1993-02-22 1994-09-01 The Coca-Cola Company Procede et systeme servant a echantillonner et a determiner la presence de composes
EP0647847A1 (fr) 1993-09-14 1995-04-12 Elpatronic Ag Utilisation d'un spectromètre de masse à ionisation de récipients
US5699162A (en) * 1994-11-28 1997-12-16 Elpatronic Ag Process and apparatus for testing a multi-trip bottle for contamination utilizing residual liquid in bottle bottom and sprectral measurement
WO1998022809A1 (fr) 1996-11-18 1998-05-28 Thermedics Detection Inc. Inspection d'un recipient de stockage d'eau
US20090095057A1 (en) * 2007-10-16 2009-04-16 Phoenix S&T, Inc. Integrated microfluidic nozzle device for chromatographic sample preparation for mass spectrometry applications
DE102016110540A1 (de) * 2016-06-08 2017-12-14 Krones Ag Vorrichtung und Verfahren zum Inspizieren von Behältnissen

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0579999A (ja) * 1991-09-24 1993-03-30 Mitsubishi Heavy Ind Ltd びん内沈降異物の検査装置
DE4302657C1 (de) 1993-01-30 1994-03-03 Holstein & Kappert Maschf Verfahren zur Bestimmung von Kontaminaten in Behältern
WO1994019679A1 (fr) * 1993-02-22 1994-09-01 The Coca-Cola Company Procede et systeme servant a echantillonner et a determiner la presence de composes
EP0647847A1 (fr) 1993-09-14 1995-04-12 Elpatronic Ag Utilisation d'un spectromètre de masse à ionisation de récipients
US5523565A (en) * 1993-09-14 1996-06-04 Elpatronic Ag Use of a mass spectrometer with secondary ionization for the inspection of containers
US5699162A (en) * 1994-11-28 1997-12-16 Elpatronic Ag Process and apparatus for testing a multi-trip bottle for contamination utilizing residual liquid in bottle bottom and sprectral measurement
WO1998022809A1 (fr) 1996-11-18 1998-05-28 Thermedics Detection Inc. Inspection d'un recipient de stockage d'eau
US20090095057A1 (en) * 2007-10-16 2009-04-16 Phoenix S&T, Inc. Integrated microfluidic nozzle device for chromatographic sample preparation for mass spectrometry applications
DE102016110540A1 (de) * 2016-06-08 2017-12-14 Krones Ag Vorrichtung und Verfahren zum Inspizieren von Behältnissen

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