EP3012200B1 - Combing machine with gas nozzle monitoring - Google Patents

Combing machine with gas nozzle monitoring Download PDF

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Publication number
EP3012200B1
EP3012200B1 EP14190229.6A EP14190229A EP3012200B1 EP 3012200 B1 EP3012200 B1 EP 3012200B1 EP 14190229 A EP14190229 A EP 14190229A EP 3012200 B1 EP3012200 B1 EP 3012200B1
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EP
European Patent Office
Prior art keywords
gas nozzle
bag
chamber
chamber machine
sensing
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.)
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EP14190229.6A
Other languages
German (de)
French (fr)
Other versions
EP3012200A1 (en
Inventor
Konrad Mößnang
Benjamin Öfele
Thomas Pfalzer
Klaus Rothermel
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller GmbH and Co KG
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 Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Priority to EP14190229.6A priority Critical patent/EP3012200B1/en
Priority to US14/918,151 priority patent/US10189589B2/en
Priority to CN201510696055.5A priority patent/CN105539917B/en
Publication of EP3012200A1 publication Critical patent/EP3012200A1/en
Application granted granted Critical
Publication of EP3012200B1 publication Critical patent/EP3012200B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/06—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/02—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of binding or wrapping material, containers, or packages

Definitions

  • the invention relates to a vacuum chamber machine (i.e., chamber packaging machine) having the features of claim 1 and a method having the features of claim 6.
  • a chamber belt machine which has nozzles which can be positioned in bags in order to feed a plurality of bags or to inject liquid into these bags.
  • nozzles which can be positioned in bags in order to feed a plurality of bags or to inject liquid into these bags.
  • sealed packaging that has an internal pressure that is similar or equal to ambient pressure, poor fumigation can not be detected without special measuring equipment.
  • the object of the present invention is to provide a chamber machine which can detect errors during gassing.
  • the chamber machine according to the invention for packaging products into at least one bag wherein the chamber machine comprises at least one gas nozzle, is characterized in that the chamber machine comprises a monitoring device configured to detect the presence of a bag neck of the bag above the gas nozzle. For example, a manually incorrectly inserted bag as well as an incorrect positioning of the bag can be reliably detected. This is particularly advantageous in a chamber belt machine in which the bag is automatically fed. Because with sealed bags, which were fumigated with ambient pressure, without these measures so far not It was evident whether sufficient or even gas was fed into the bag, especially in the packaging of medical products, a validation of this packaging process makes sense to dispense with subsequent expensive gas measurements on the already sealed bag can.
  • the monitoring device has at least one sensing finger for each gas nozzle to at least one side to check the presence of a bag pushed over the gas nozzle.
  • an electrical voltage can be applied to each gas nozzle or to each probe finger and the gas nozzle is electrically insulated from each probe finger.
  • a controller is provided, which is configured to apply in each case to a gas nozzle, an electrical voltage, preferably a DC voltage, and to detect a current flowing between the gas nozzle and a sensing finger current or to measure the voltage on the sensing finger.
  • an electrical voltage preferably a DC voltage
  • the controller is designed in a particularly advantageous form to display an error on a gas nozzle to an operator. The operator is thus able to sort out the bag in question or to pass it on to another test.
  • two sensing fingers are provided for each gas nozzle, which are movable relative to the gas nozzle and each other. This ensures that not the entire bag can be located between only one touch finger and the gas nozzle and this error is not recognized, but two sides of the bag must be slipped over a gas nozzle. Process reliability and error checking are thus further improved.
  • the sensing fingers are preferably designed as spring plates to be both electrically conductive and on the other hand to cause a slight pressure on the bag and the gas nozzle to ensure electrical contact in case of failure without damaging the bag.
  • the monitoring device in each case has at least one sensor for each gas nozzle.
  • the senor is an inductive or capacitive proximity sensor or an optical sensor.
  • a single sensor is provided for each gas nozzle to determine the inflation behavior of a bag at the respective gas nozzle during the evacuation and subsequent gassing process.
  • the sensor is preferably a touch switch.
  • the method according to the invention for packaging products in a bag by gassing the bag in a chamber machine is characterized in that the position of a bag neck of the bag over a gas nozzle is monitored by means of a monitoring device. This ensures that the gas exchange in the bag is carried out reliably.
  • a controller of the chamber machine indicates an incorrect position of the bag neck to an operator.
  • a control of the chamber machine measures an electric current flowing through the gas nozzle and a sensing finger associated with the gas nozzle, or an electrical voltage applied between the gas nozzle and an associated sensing finger.
  • a test of the circuit is performed immediately after closing a chamber lid or during the gassing process.
  • an additional circuit validation test is preferably performed without a bag over the gas nozzle to check for electrical circuit breakage and thus to validate the monitoring system.
  • FIG. 1 shows a vacuum chamber machine 1 according to the invention with an open chamber lid 2, a frame 3, a chamber bottom 4 and a plurality of sealing bars 5 on three sides.
  • a modified atmosphere product 6 it is filled into a bag 7 of electrically insulating material and the bag 7 is placed on the chamber bottom 4 in the chamber machine 1, as shown, so that the open and still to be sealed area of the bag 7 on the Sealing rail 5 rests or is located above it and the open part of the bag 7, namely the bag neck 8, is slipped over a series of three gas nozzles 9.
  • the chamber lid 2 can be operated by a motor and activated by a push button 10 to close.
  • the gas nozzles 9 each have a monitoring device 11 which checks whether the bag neck 8 or the bag 7 has been slipped correctly over the gas nozzle 9 or over a plurality of gas nozzles 9. Correct here means that the gas nozzle 9 protrudes so far into the bag neck 8, that a process-safe gassing of the bag interior is guaranteed.
  • Fig. 2 shows the monitoring device 11 in the open position for one or three gas nozzles 9.
  • the monitoring device 11 has for each gas nozzle 9, an upper Tastfinger 12 and a lower Tastfinger 13.
  • the upper sensing finger 12 is electrically isolated from a first ledge 14 and the lower tactile finger 13 is electrically isolated at one second bar 15 attached.
  • the two strips 14, 15 are themselves in turn electrically insulated from the gas nozzles 9 and designed to be vertically movable by means of guides 16.
  • a pneumatic cylinder 17 is connected with its piston rod 18 to the second bar 15 and the cylinder body 19 itself connected to the first bar 14.
  • the pneumatic cylinder 17 causes a moving together and apart of the first 14 and second bar 15 relative to each other.
  • the activated pneumatic cylinder 17 extends its piston rod 18 and pushes the first bar 14 down to a stop 20.
  • upper sensing finger 12 is brought to the gas nozzle 9 so far that the sensing finger, for example, as Spring plate is executed, presses against the gas nozzle 9.
  • the cylinder body 19 is supported on the first bar 14 on the stop 20 and pushes the second bar 15 with the lower feeler finger 13 also against the gas nozzle 9. In this position can be checked whether a bag 7 correctly with a first side 22 above the gas nozzle 9 and with a second side 21 (see Fig. 4 ) rests below the gas nozzle 9.
  • the bag neck 8 must in this case at least to the respective contact point 23 (see Fig. 5 ) of the sensing fingers 12, 13 with the gas nozzle 9 slipped over the gas nozzle 9.
  • Fig. 4 shows a sectional view of the monitoring device 11 with a single gas nozzle 9, the two sensing fingers 12, 13 and the two strips 14, 15.
  • the two sensing fingers 12, 13 and the gas nozzle 9 are each electrically insulated from each other and each with a controller 24 (see also Fig. 1 ) connected.
  • the controller 24 applies a DC voltage of, for example, 5 V or 24 V to a connecting line 30 to the gas nozzle 9 and measures an electrical voltage at the respective connecting lines 31, 32 to the sensing fingers 12, 13.
  • Fig. 4 also shows a correctly inserted bag 7, which is so slipped over the gas nozzle 9 with its bag neck 8, so that the first side 22 and the second side 21 of the bag neck 8 further protrude beyond the gas nozzle 9 than in Fig. 5 shown contact point 23 of the probe fingers 12, 13 at the gas nozzle. 9
  • Fig. 5 the monitoring device 11 is shown in its closed or test position in which the strips 14, 15 moved apart, the bar 14 is located on the stop 20 and thus the sensing fingers 12, 13 against the gas nozzle 9 and the first 22 and second Press side 21 of the bag neck 8.
  • the controller 24 evaluates this result as a correctly inserted bag 7.
  • the monitoring device 11 shown can also be checked against breakage of the electrical connection lines 31, 32 or dirt on the gas nozzles 9 by the sensing fingers 12, 13 before inserting the bag 7 or after removing the bag 7 from the chamber machine 1 in the test position can be brought and the controller 24 can perform a successful voltage or current measurement. Should a connecting line 31, 32 be interrupted or a sensing finger 12, 13 be bent, for example, the controller 24 can determine this by means of the monitoring device 11.
  • Another test option is when removing the bag 7. If the sensing fingers 12, 13 are still in test position, a voltage between the sensing fingers 12, 13 and the gas nozzles 9 must be measurable at the moment of removal.
  • the chamber machine 1 is designed as a chamber belt machine with a conveyor belt and automatically positionable gas nozzles 9, such a previously described test is automatically possible before feeding new bags 7 or after the removal of already fumigated and sealed bags 7.
  • the presence of bags 7 in the chamber machine 1 is checked by the controller 24 by means of sensors, preferably light barriers.
  • the operator on the display 40 only the errors of incorrectly inserted bags 7 are displayed and errors that are evaluated by non-existing bag 7, hidden by the controller 24 and not brought to the display 40.
  • gas lines are opened to the gas nozzles 9 by means of valves only for gassing when the correct concern of a bag 7 was determined for the corresponding gas nozzle 9.
  • chamber machine 1 also includes a chamber belt machine, in which the bags 7 filled with a product 6 are transported by means of a conveyor belt into the chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)
  • Examining Or Testing Airtightness (AREA)

Description

Die Erfindung bezieht sich auf eine Vakuum-Kammermaschine (d.h. Kammer-Verpackungsmaschine) mit den Merkmalen des Anspruchs 1 und ein Verfahren mit den Merkmalen des Anspruchs 6.The invention relates to a vacuum chamber machine (i.e., chamber packaging machine) having the features of claim 1 and a method having the features of claim 6.

Aus der EP 2 093 147 A1 ist eine Kammerbandmaschine bekannt, die in Beutel hineinpositionierbare Düsen aufweist, um mehrere Beutel begasen oder in diese Beutel Flüssigkeit einspritzen zu können. Beim manuellen Auflegen der Beutel auf das Transportband kann es vorkommen, dass nicht ordnungsgemäß aufgelegte Beutel innerhalb der Kammerbandmaschine fehlerhaft oder gar nicht begast werden. Bei gesiegelten Verpackungen, die einen Innendruck aufweisen, der ähnlich oder gleich dem Umgebungsdruck ist, kann eine mangelhafte Begasung ohne spezielle Messmittel nicht festgestellt werden.From the EP 2 093 147 A1 For example, a chamber belt machine is known which has nozzles which can be positioned in bags in order to feed a plurality of bags or to inject liquid into these bags. When manually placing the bags on the conveyor belt, it may happen that improperly placed bags within the chamber belt machine erroneously or not gassed at all. For sealed packaging that has an internal pressure that is similar or equal to ambient pressure, poor fumigation can not be detected without special measuring equipment.

Auch bei Kammermaschinen, bei denen der Beutel manuell über eine statisch befestigte Gasdüse gestülpt wird, kann eine mangelhafte Begasung bei unordnungsgemäßer Handhabung vorkommen. Im Falle von medizinischen Produkten würden solche Fehler zu hohen Fehlerkosten führen.Even in chamber machines in which the bag is manually placed over a statically attached gas nozzle, a poor fumigation in case of improper handling may occur. In the case of medical products, such errors would lead to high error costs.

Aus der US 3 516 223 A ist eine Kammermaschine mit einer Begasungsvorrichtung bekannt und die Möglichkeit einer elektrischen Prüfung der Position des Beutels angegeben.From the US 3 516 223 A a chamber machine with a gassing device is known and the possibility of an electrical check of the position of the bag is indicated.

Aufgabe der vorliegenden Erfindung ist es, eine Kammermaschine zur Verfügung zu stellen, die Fehler beim Begasen feststellen kann.The object of the present invention is to provide a chamber machine which can detect errors during gassing.

Diese Aufgabe wird gelöst durch eine Kammermaschine mit den Merkmalen des Anspruchs 1 bzw. durch ein Verfahren zum Betrieb einer solchen Kammermaschine mit den Merkmalen des Anspruchs 6. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a chamber machine with the features of claim 1 or by a method for operating such a chamber machine with the features of claim 6. Advantageous developments of the invention are specified in the dependent claims.

Die erfindungsgemäße Kammermaschine zum Verpacken von Produkten in wenigstens einen Beutel, wobei die Kammermaschine wenigstens eine Gasdüse umfasst, zeichnet sich dadurch aus, dass die Kammermaschine eine Überwachungsvorrichtung umfasst, die dazu konfiguriert ist, das Vorhandensein eines Beutelhalses des Beutels über der Gasdüse zu erfassen. So können prozesssicher ein manuell fehlerhaft eingelegter Beutel sowie eine Fehlpositionierung des Beutels erkannt werden. Besonders vorteilhaft ist dies bei einer Kammerbandmaschine, bei der der Beutel automatisch zugeführt wird. Da bei gesiegelten Beuteln, die mit Umgebungsdruck begast wurden, ohne diese Maßnahmen bislang nicht erkennbar war, ob ausreichend oder überhaupt Gas in den Beutel geführt wurde, ist vor allem beim Verpacken von medizinischen Produkten eine Validierung dieses Verpackungsprozesses sinnvoll, um auf spätere aufwendige Gasmessungen an dem bereits gesiegelten Beutel verzichten zu können.The chamber machine according to the invention for packaging products into at least one bag, wherein the chamber machine comprises at least one gas nozzle, is characterized in that the chamber machine comprises a monitoring device configured to detect the presence of a bag neck of the bag above the gas nozzle. For example, a manually incorrectly inserted bag as well as an incorrect positioning of the bag can be reliably detected. This is particularly advantageous in a chamber belt machine in which the bag is automatically fed. Because with sealed bags, which were fumigated with ambient pressure, without these measures so far not It was evident whether sufficient or even gas was fed into the bag, especially in the packaging of medical products, a validation of this packaging process makes sense to dispense with subsequent expensive gas measurements on the already sealed bag can.

Beispielsweise weist die Überwachungsvorrichtung wenigstens einen Tastfinger für jede Gasdüse auf, um wenigstens einseitig das Vorhandensein eines über die Gasdüse gestülpten Beutels zu prüfen.For example, the monitoring device has at least one sensing finger for each gas nozzle to at least one side to check the presence of a bag pushed over the gas nozzle.

Vorzugsweise ist an jeder Gasdüse oder an jedem Tastfinger eine elektrische Spannung anlegbar und die Gasdüse ist gegenüber jedem Tastfinger elektrisch isoliert.Preferably, an electrical voltage can be applied to each gas nozzle or to each probe finger and the gas nozzle is electrically insulated from each probe finger.

Bevorzugt ist eine Steuerung vorgesehen ist, die dazu konfiguriert ist, jeweils an einer Gasdüse eine elektrische Spannung, vorzugsweise eine Gleichspannung, anzulegen, und einen zwischen der Gasdüse und einem Tastfinger fließenden Strom zu erfassen oder die Spannung am Tastfinger zu messen. So kann auf konstruktiv einfache und kostengünstige Weise das Vorhandensein eines Beutels über einer Gasdüse geprüft werden.Preferably, a controller is provided, which is configured to apply in each case to a gas nozzle, an electrical voltage, preferably a DC voltage, and to detect a current flowing between the gas nozzle and a sensing finger current or to measure the voltage on the sensing finger. Thus, the presence of a bag over a gas nozzle can be tested in a structurally simple and cost-effective manner.

Die Steuerung ist in einer besonders vorteilhaften Form dazu ausgebildet, einen Fehler an einer Gasdüse einem Bediener anzuzeigen. Der Bediener ist somit in der Lage, den betreffenden Beutel auszusortieren oder einer weiteren Prüfung zuzuführen.The controller is designed in a particularly advantageous form to display an error on a gas nozzle to an operator. The operator is thus able to sort out the bag in question or to pass it on to another test.

Erfindungsgemäß sind zwei Tastfinger für jeweils eine Gasdüse vorgesehen, die relativ zur Gasdüse und zueinander bewegbar sind. Dies stellt sicher, dass sich nicht der gesamte Beutel zwischen lediglich einem Tastfinger und der Gasdüse befinden kann und dieser Fehler nicht erkannt wird, sondern zwei Seiten des Beutels über eine Gasdüse gestülpt sein müssen. Die Prozesssicherheit und die Fehlerprüfung wird somit weiter verbessert.According to the invention, two sensing fingers are provided for each gas nozzle, which are movable relative to the gas nozzle and each other. This ensures that not the entire bag can be located between only one touch finger and the gas nozzle and this error is not recognized, but two sides of the bag must be slipped over a gas nozzle. Process reliability and error checking are thus further improved.

Dabei sind die Tastfinger vorzugsweise als Federbleche ausgeführt, um einerseits elektrisch leitend zu sein und andererseits einen leichten Druck auf den Beutel und die Gasdüse zu bewirken, um einen elektrischen Kontakt im Fehlerfall sicherzustellen, ohne dabei den Beutel zu beschädigen.The sensing fingers are preferably designed as spring plates to be both electrically conductive and on the other hand to cause a slight pressure on the bag and the gas nozzle to ensure electrical contact in case of failure without damaging the bag.

In einer ersten alternativen Ausführung weist die Überwachungsvorrichtung jeweils wenigstens einen Sensor für jede Gasdüse auf.In a first alternative embodiment, the monitoring device in each case has at least one sensor for each gas nozzle.

Vorzugsweise ist dabei der Sensor ein induktiver oder kapazitiver Näherungssensor oder ein optischer Sensor.Preferably, the sensor is an inductive or capacitive proximity sensor or an optical sensor.

In einer weiteren alternativen Ausführung ist für jede Gasdüse ein einzelner Sensor vorgesehen, um das Aufblasverhalten eines Beutels an der betreffenden Gasdüse während des Evakuierungs- und nachfolgenden Begasungsprozesses zu erfassen. Dabei ist der Sensor bevorzugt ein Berührungsschalter.In a further alternative embodiment, a single sensor is provided for each gas nozzle to determine the inflation behavior of a bag at the respective gas nozzle during the evacuation and subsequent gassing process. In this case, the sensor is preferably a touch switch.

Das erfindungsgemäße Verfahren zum Verpacken von Produkten in einem Beutel mittels Begasen des Beutels in einer Kammermaschine zeichnet sich dadurch aus, dass die Lage eines Beutelhalses des Beutels über einer Gasdüse mittels einer Überwachungsvorrichtung überwacht wird. So wird sichergestellt, dass der Gasaustausch im Beutel prozesssicher durchgeführt wird.The method according to the invention for packaging products in a bag by gassing the bag in a chamber machine is characterized in that the position of a bag neck of the bag over a gas nozzle is monitored by means of a monitoring device. This ensures that the gas exchange in the bag is carried out reliably.

Vorzugsweise zeigt eine Steuerung der Kammermaschine einem Bediener eine fehlerhafte Lage des Beutelhalses an.Preferably, a controller of the chamber machine indicates an incorrect position of the bag neck to an operator.

Erfindungsgemäß misst eine Steuerung der Kammermaschine einen elektrischen Strom, der durch die Gasdüse und einen der Gasdüse zugeordneten Tastfinger fließt, oder eine elektrische Spannung, die zwischen der Gasdüse und einem zugeordneten Tastfinger anliegt. So kann auf konstruktiv einfache und kostengünstige Weise das Vorhandensein eines Beutels über einer Gasdüse geprüft werden.According to the invention, a control of the chamber machine measures an electric current flowing through the gas nozzle and a sensing finger associated with the gas nozzle, or an electrical voltage applied between the gas nozzle and an associated sensing finger. Thus, the presence of a bag over a gas nozzle can be tested in a structurally simple and cost-effective manner.

Bevorzugt wird eine Prüfung des Stromkreises direkt nach dem Schließen eines Kammerdeckels oder während des Begasungsvorgangs durchgeführt.Preferably, a test of the circuit is performed immediately after closing a chamber lid or during the gassing process.

Dabei wird vorzugsweise eine zusätzliche Prüfung zur Validierung des Stromkreises ohne einen Beutel über der Gasdüse durchgeführt, um eine Überprüfung auf Leitungsbruch der elektrischen Stromkreise durchzuführen und somit das Überwachungssystem zu validieren.In this case, an additional circuit validation test is preferably performed without a bag over the gas nozzle to check for electrical circuit breakage and thus to validate the monitoring system.

Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Im Einzelnen zeigen:

Fig. 1
eine erfindungsgemäße Kammermaschine,
Fig. 2
eine Überwachungsvorrichtung in offener Stellung,
Fig. 3
eine Überwachungseinrichtung in geschlossener Stellung,
Fig. 4
eine Schnittansicht der Überwachungsvorrichtung in offener Stellung und
Fig. 5
eine Schnittansicht der Überwachungsvorrichtung in geschlossener Stellung.
In the following, an advantageous embodiment of the invention is explained in detail with reference to a drawing. In detail show:
Fig. 1
a chamber machine according to the invention,
Fig. 2
a monitoring device in open position,
Fig. 3
a monitoring device in the closed position,
Fig. 4
a sectional view of the monitoring device in the open position and
Fig. 5
a sectional view of the monitoring device in the closed position.

Gleiche Komponenten sind in den Figuren durchgängig mit gleichen Bezugszeichen versehen.The same components are provided throughout the figures with the same reference numerals.

Figur 1 zeigt eine erfindungsgemäße Vakuum-Kammermaschine 1 mit einem geöffneten Kammerdeckel 2, einem Gestell 3, einem Kammerboden 4 und mehreren Siegelschienen 5 an drei Seiten. Zum Verpacken eines Produkts 6 unter modifizierter Atmosphäre wird dieses in einen Beutel 7 aus elektrisch isolierendem Material eingefüllt und der Beutel 7 wird wie gezeigt in der Kammermaschine 1 auf den Kammerboden 4 gelegt, so dass der offene und noch zu versiegelnde Bereich des Beutels 7 auf der Siegelschiene 5 aufliegt bzw. sich darüber befindet und der offene Teil des Beutels 7, nämlich der Beutelhals 8, über eine Reihe von drei Gasdüsen 9 gestülpt ist. Nach dem Schließen des Kammerdeckels 2 in Pfeilrichtung kann das Innere der zwischen Kammerdeckel 2 und Kammerboden 4 gebildeten Kammer evakuiert und die Beutel 7 über die Gasdüsen 9 begast werden, bevor der Beutel 7 mittels der Siegelschienen 5 luftdicht versiegelt wird. Der Kammerdeckel 2 kann motorisch betrieben sein und über einen Drucktaster 10 zum Schließen aktiviert werden. FIG. 1 shows a vacuum chamber machine 1 according to the invention with an open chamber lid 2, a frame 3, a chamber bottom 4 and a plurality of sealing bars 5 on three sides. For packaging a modified atmosphere product 6, it is filled into a bag 7 of electrically insulating material and the bag 7 is placed on the chamber bottom 4 in the chamber machine 1, as shown, so that the open and still to be sealed area of the bag 7 on the Sealing rail 5 rests or is located above it and the open part of the bag 7, namely the bag neck 8, is slipped over a series of three gas nozzles 9. After closing the chamber lid 2 in the arrow direction, the interior of the chamber formed between chamber cover 2 and chamber bottom 4 evacuated and the bags 7 are gassed via the gas nozzles 9, before the bag 7 is sealed airtight by means of the sealing rails 5. The chamber lid 2 can be operated by a motor and activated by a push button 10 to close.

Die Gasdüsen 9 weisen jeweils eine Überwachungsvorrichtung 11 auf, die überprüft, ob der Beutelhals 8 bzw. der Beutel 7 korrekt über die Gasdüse 9 oder auch über mehrere Gasdüsen 9 gestülpt wurde. Korrekt bedeutet hierbei, dass die Gasdüse 9 soweit in den Beutelhals 8 hineinragt, dass ein prozesssicheres Begasen des Beutelinneren gewährleistet ist.The gas nozzles 9 each have a monitoring device 11 which checks whether the bag neck 8 or the bag 7 has been slipped correctly over the gas nozzle 9 or over a plurality of gas nozzles 9. Correct here means that the gas nozzle 9 protrudes so far into the bag neck 8, that a process-safe gassing of the bag interior is guaranteed.

Fig. 2 zeigt die Überwachungsvorrichtung 11 in offener Stellung für eine bzw. drei Gasdüsen 9. Die Überwachungsvorrichtung 11 weist für jede Gasdüse 9 einen oberen Tastfinger 12 und einen unteren Tastfinger 13 auf. Der obere Tastfinger 12 ist elektrisch isoliert an einer ersten Leiste 14 und der untere Tastfinger 13 ist elektrisch isoliert an einer zweiten Leiste 15 angebracht. Die beiden Leisten 14, 15 sind selbst wiederum elektrisch gegenüber den Gasdüsen 9 isoliert und vertikal mittels Führungen 16 bewegbar ausgeführt. Ein Pneumatikzylinder 17 ist mit seiner Kolbenstange 18 mit der zweiten Leiste 15 verbunden und der Zylinderkörper 19 selbst mit der ersten Leiste 14 verbunden. Der Pneumatikzylinder 17 bewirkt ein Zusammen- und Auseinanderbewegen der ersten 14 und zweiten Leiste 15 relativ zueinander. Fig. 2 shows the monitoring device 11 in the open position for one or three gas nozzles 9. The monitoring device 11 has for each gas nozzle 9, an upper Tastfinger 12 and a lower Tastfinger 13. The upper sensing finger 12 is electrically isolated from a first ledge 14 and the lower tactile finger 13 is electrically isolated at one second bar 15 attached. The two strips 14, 15 are themselves in turn electrically insulated from the gas nozzles 9 and designed to be vertically movable by means of guides 16. A pneumatic cylinder 17 is connected with its piston rod 18 to the second bar 15 and the cylinder body 19 itself connected to the first bar 14. The pneumatic cylinder 17 causes a moving together and apart of the first 14 and second bar 15 relative to each other.

Anhand der Fig. 3 wird der Bewegungsablauf der Leisten 14, 15 bzw. der Tastfinger 12, 13 näher erläutert. Der aktivierte Pneumatikzylinder 17 fährt seine Kolbenstange 18 aus und schiebt dabei die erste Leiste 14 nach unten bis an einen Anschlag 20. Dabei wird der an der ersten Leiste 14 angebrachte obere Tastfinger 12 an die Gasdüse 9 soweit herangeführt, dass der Tastfinger, der beispielsweise als Federblech ausgeführt ist, gegen die Gasdüse 9 drückt. Im weiteren Verlauf der ausfahrenden Kolbenstange 18 stützt sich der Zylinderkörper 19 über die erste Leiste 14 am Anschlag 20 ab und schiebt die zweite Leiste 15 mit dem unteren Tastfinger 13 ebenfalls gegen die Gasdüse 9. In dieser Stellung kann überprüft werden, ob ein Beutel 7 korrekt mit einer ersten Seite 22 oberhalb der Gasdüse 9 und mit einer zweiten Seite 21 (siehe Fig. 4) unterhalb der Gasdüse 9 anliegt. Der Beutelhals 8 muss hierbei wenigstens bis zur jeweiligen Kontaktstelle 23 (siehe Fig. 5) der Tastfinger 12, 13 mit der Gasdüse 9 über die Gasdüse 9 gestülpt sein.Based on Fig. 3 the sequence of movements of the strips 14, 15 and the feeler fingers 12, 13 is explained in more detail. The activated pneumatic cylinder 17 extends its piston rod 18 and pushes the first bar 14 down to a stop 20. In this case, attached to the first bar 14 upper sensing finger 12 is brought to the gas nozzle 9 so far that the sensing finger, for example, as Spring plate is executed, presses against the gas nozzle 9. In the course of the extending piston rod 18, the cylinder body 19 is supported on the first bar 14 on the stop 20 and pushes the second bar 15 with the lower feeler finger 13 also against the gas nozzle 9. In this position can be checked whether a bag 7 correctly with a first side 22 above the gas nozzle 9 and with a second side 21 (see Fig. 4 ) rests below the gas nozzle 9. The bag neck 8 must in this case at least to the respective contact point 23 (see Fig. 5 ) of the sensing fingers 12, 13 with the gas nozzle 9 slipped over the gas nozzle 9.

Fig. 4 zeigt eine Schnittansicht der Überwachungsvorrichtung 11 mit einer einzelnen Gasdüse 9, den beiden Tastfingern 12, 13 und den beiden Leisten 14, 15. Die beiden Tastfinger 12, 13 und die Gasdüse 9 sind jeweils zueinander elektrisch isoliert und sind jeweils mit einer Steuerung 24 (siehe auch Fig. 1) verbunden. Die Steuerung 24 legt an einer Verbindungsleitung 30 zu der Gasdüse 9 eine Gleichspannung von beispielsweise 5 V oder 24 V an und misst an den jeweiligen Verbindungsleitungen 31, 32 zu den Tastfingern 12, 13 eine elektrische Spannung. Fig. 4 zeigt auch einen korrekt eingelegten Beutel 7, der mit seinem Beutelhals 8 derart über die Gasdüse 9 übergestülpt ist, sodass die erste Seite 22 und die zweite Seite 21 des Beutelhalses 8 weiter über die Gasdüse 9 ragen als die in Fig. 5 gezeigte Kontaktstelle 23 der Tastfinger 12, 13 an der Gasdüse 9. Fig. 4 shows a sectional view of the monitoring device 11 with a single gas nozzle 9, the two sensing fingers 12, 13 and the two strips 14, 15. The two sensing fingers 12, 13 and the gas nozzle 9 are each electrically insulated from each other and each with a controller 24 (see also Fig. 1 ) connected. The controller 24 applies a DC voltage of, for example, 5 V or 24 V to a connecting line 30 to the gas nozzle 9 and measures an electrical voltage at the respective connecting lines 31, 32 to the sensing fingers 12, 13. Fig. 4 also shows a correctly inserted bag 7, which is so slipped over the gas nozzle 9 with its bag neck 8, so that the first side 22 and the second side 21 of the bag neck 8 further protrude beyond the gas nozzle 9 than in Fig. 5 shown contact point 23 of the probe fingers 12, 13 at the gas nozzle. 9

In Fig. 5 ist die Überwachungsvorrichtung 11 in ihrer geschlossenen bzw. ihrer Prüfstellung gezeigt, bei der die Leisten 14, 15 auseinander bewegt wurden, die Leiste 14 sich am Anschlag 20 befindet und somit die Tastfinger 12, 13 gegen die Gasdüse 9 bzw. die erste 22 und zweite Seite 21 des Beutelhalses 8 drücken. Da sich zwischen dem ersten Tastfinger 12 und der Gasdüse 9 die erste Seite 22 des korrekt eingelegten Beutelhalses 8 befindet, erkennt die Steuerung 24, dass kein oder nur ein minimaler Strom über die Gasdüse 9, an der die Spannung anliegt, fließt oder dass an der Verbindungsleitung 31 mit dem oberen Tastfingern 12 keine Spannung anliegt, da der Beutel 7, beispielsweise aus Kunststoff ausgeführt, isolierend wirkt. Analog gilt dies auch für den zweiten Tastfinger 13. Die Steuerung 24 wertet dieses Ergebnis als einen korrekt eingelegten Beutel 7 aus.In Fig. 5 the monitoring device 11 is shown in its closed or test position in which the strips 14, 15 moved apart, the bar 14 is located on the stop 20 and thus the sensing fingers 12, 13 against the gas nozzle 9 and the first 22 and second Press side 21 of the bag neck 8. Being between the first Tastfinger 12 and the gas nozzle 9 is the first side 22 of the correctly inserted bag neck 8, recognizes the controller 24 that no or only a minimal flow through the gas nozzle 9, at which the voltage is applied, or that on the connecting line 31 with the upper Tastfingern 12 no voltage is applied, since the bag 7, for example made of plastic, insulating acts. The same applies to the second sensing finger 13. The controller 24 evaluates this result as a correctly inserted bag 7.

Im Fall, dass wenigstens eine Seite 21, 22 nicht ausreichend über die Gasdüse 9 gestülpt ist oder überhaupt kein Beutel 7 eingelegt wurde, wird dies erkannt, da wenigstens ein Tastfinger 12, 13 direkt an der Kontaktstelle 23 mit der Gasdüse 9 elektrisch in Verbindung steht und die Steuerung 24 an der Verbindungsleitung 31, 32 mit einem Tastfinger 12, 13 die Spannung misst oder einen Stromfluss feststellt, da die Isolation durch den Beutel 7 fehlt. Die Steuerung 24 erkennt diesen Fehler und zeigt diesen an einer Anzeige 40 (siehe Fig. 1) der Steuerung 24 der Kammermaschine 1 an. Der Bediener kann danach entscheiden, ob ein begaster und gesiegelter Beutel 7 anschließend nochmal anderweitig geprüft oder aussortiert werden muss.In the event that at least one side 21, 22 is not sufficiently slipped over the gas nozzle 9 or no bag 7 at all was inserted, this is recognized, since at least one sensing finger 12, 13 is electrically connected directly to the contact point 23 with the gas nozzle 9 and the controller 24 on the connecting line 31, 32 with a sensing finger 12, 13, the voltage measures or detects a current flow, since the isolation by the bag 7 is missing. The controller 24 detects this error and displays it on a display 40 (see Fig. 1 ) of the controller 24 of the chamber machine 1 at. The operator can then decide whether a fumigated and sealed bag 7 then has to be checked or sorted out again otherwise.

Die gezeigte Überwachungsvorrichtung 11 kann auch gegen Bruch der elektrischen Verbindungsleitungen 31, 32 oder auf Verschmutzung an den Gasdüsen 9 geprüft werden, indem die Tastfinger 12, 13 vor dem Einlegen des Beutels 7 oder nach der Entnahme des Beutels 7 aus der Kammermaschine 1 in die Prüfstellung gebracht werden und die Steuerung 24 eine erfolgreiche Spannungs- oder Strommessung durchführen kann. Sollte eine Verbindungsleitung 31, 32 unterbrochen sein oder ein Tastfinger 12, 13 beispielsweise verbogen sein, so kann die Steuerung 24 dies mittels der Überwachungsvorrichtung 11 feststellen.The monitoring device 11 shown can also be checked against breakage of the electrical connection lines 31, 32 or dirt on the gas nozzles 9 by the sensing fingers 12, 13 before inserting the bag 7 or after removing the bag 7 from the chamber machine 1 in the test position can be brought and the controller 24 can perform a successful voltage or current measurement. Should a connecting line 31, 32 be interrupted or a sensing finger 12, 13 be bent, for example, the controller 24 can determine this by means of the monitoring device 11.

Eine weitere Prüfmöglichkeit besteht beim Entnehmen der Beutel 7. Sind die Tastfinger 12, 13 noch immer in Prüfstellung, muss im Moment des Entfernens eine Spannung zwischen den Tastfingern 12, 13 und den Gasdüsen 9 messbar sein.Another test option is when removing the bag 7. If the sensing fingers 12, 13 are still in test position, a voltage between the sensing fingers 12, 13 and the gas nozzles 9 must be measurable at the moment of removal.

Im Fall, dass die Kammermaschine 1 als Kammerbandmaschine mit einem Transportband und automatisch positionierbaren Gasdüsen 9 ausgeführt ist, ist eine solche zuvor beschrieben Prüfung automatisch vor dem Zuführen von neuen Beuteln 7 oder nach dem Abführen von bereits begasten und gesiegelten Beuteln 7 möglich.In the case that the chamber machine 1 is designed as a chamber belt machine with a conveyor belt and automatically positionable gas nozzles 9, such a previously described test is automatically possible before feeding new bags 7 or after the removal of already fumigated and sealed bags 7.

Es ist auch denkbar, dass mittels Sensoren, vorzugsweise Lichtschranken, das Vorhandensein von Beuteln 7 in der Kammermaschine 1 von der Steuerung 24 geprüft wird. Hierbei werden dem Bediener an der Anzeige 40 lediglich die Fehler von nicht korrekt eingelegten Beuteln 7 angezeigt und Fehler, die durch nicht vorhandene Beutel 7 ausgewertet werden, von der Steuerung 24 ausgeblendet und nicht zur Anzeige 40 gebracht.It is also conceivable that the presence of bags 7 in the chamber machine 1 is checked by the controller 24 by means of sensors, preferably light barriers. Here, the operator on the display 40 only the errors of incorrectly inserted bags 7 are displayed and errors that are evaluated by non-existing bag 7, hidden by the controller 24 and not brought to the display 40.

Denkbar ist auch, dass Gasleitungen an die Gasdüsen 9 mittels Ventilen nur dann zur Begasung geöffnet werden, wenn das korrekte Anliegen eines Beutels 7 für die entsprechenden Gasdüsen 9 ermittelt wurde.It is also conceivable that gas lines are opened to the gas nozzles 9 by means of valves only for gassing when the correct concern of a bag 7 was determined for the corresponding gas nozzle 9.

Unter dem Begriff "Kammermaschine" 1 ist auch eine Kammerbandmaschine erfasst, bei der die mit einem Produkt 6 gefüllten Beutel 7 mittels eines Transportbandes in die Kammer transportiert werden.The term "chamber machine" 1 also includes a chamber belt machine, in which the bags 7 filled with a product 6 are transported by means of a conveyor belt into the chamber.

Claims (9)

  1. A chamber machine (1) for packaging products (6) in at least one bag (7), said chamber machine (1) comprising at least one gas nozzle (9), wherein the chamber machine (1) comprises a monitoring device (11) configured for detecting the presence of a bag neck (8) of the bag (7) over the gas nozzle (9), characterized in that the monitoring device (11) comprises two sensing fingers (12, 13) for each gas nozzle (9), said sensing fingers (12, 13) being movable relative to the gas nozzle (9) and relative to one another.
  2. The chamber machine according to claim 1, characterized in that each gas nozzle (9) or each sensing finger (12, 13) is adapted to have applied thereto an electric voltage, and that the gas nozzle (9) is electrically insulated from each sensing finger (12, 13).
  3. The chamber machine according to claim 2, characterized in that a control unit (24) is provided, which is configured for applying to the respective gas nozzle (9) an electric voltage and for detecting a current that flows between the gas nozzle (9) and a sensing finger (12, 13) and/or for measuring the voltage across the sensing finger (12, 13).
  4. The chamber machine according to one of the preceding claims, characterized in that the control unit (24) is configured for indicating an error at a gas nozzle (9) to an operator.
  5. The chamber machine according to one of the claims 2 to 6, characterized in that the sensing fingers (12, 13) are configured as spring steel sheets.
  6. A method of packaging products (6) in a bag (7) by means of gas-flushing said bag (7) in a chamber machine (1), wherein the position of a bag neck (8) of the bag (7) over a gas nozzle (9) is monitored by means of a monitoring device (11), characterized in that the monitoring device (11) measures with two sensing fingers (12, 13) an electric current or an electric voltage by means of an electric circuit provided between a respective one of the sensing fingers (12, 13) and the gas nozzle (9).
  7. The method according to claim 6, characterized in that a control unit (24) of the chamber machine (1) indicates an incorrect position of the bag neck (8) to an operator.
  8. The method according to claim 6 or 7, characterized in that an examination of the electric circuit is carried out directly after closing of a chamber lid (2) or during the gas-flushing process.
  9. The method according to claim 8, characterized in that an additional examination is carried out for validating the electric circuit without a bag (7) being placed over the gas nozzle (9).
EP14190229.6A 2014-10-24 2014-10-24 Combing machine with gas nozzle monitoring Active EP3012200B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14190229.6A EP3012200B1 (en) 2014-10-24 2014-10-24 Combing machine with gas nozzle monitoring
US14/918,151 US10189589B2 (en) 2014-10-24 2015-10-20 Chamber machine with gas nozzle monitoring
CN201510696055.5A CN105539917B (en) 2014-10-24 2015-10-23 Chamber machine with gas nozzle monitoring and the method by means of its packaging product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14190229.6A EP3012200B1 (en) 2014-10-24 2014-10-24 Combing machine with gas nozzle monitoring

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EP3012200A1 EP3012200A1 (en) 2016-04-27
EP3012200B1 true EP3012200B1 (en) 2017-10-11

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Publication number Priority date Publication date Assignee Title
JP5575827B2 (en) * 2012-03-27 2014-08-20 株式会社Ｔｏｓｅｉ Vacuum packaging method and vacuum packaging apparatus
EP3241766B1 (en) * 2016-05-03 2019-07-03 MULTIVAC Sepp Haggenmüller SE & Co. KG Flat belt machine

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US3516223A (en) * 1966-06-30 1970-06-23 Andersen Prod H W Apparatus for managing and using volatile substances
US5555704A (en) * 1993-09-24 1996-09-17 A-Bio-Vac Inc. Sterilization system
CN1290225A (en) * 1998-03-25 2001-04-04 莫洛斯考拉罗 Device for packaging materials in vacuum chamber
JP4535750B2 (en) 2004-03-05 2010-09-01 サントリーホールディングス株式会社 Beverage dispenser and warning device for beverage dispenser
DE102008011019A1 (en) 2008-02-25 2009-09-03 Multivac Sepp Haggenmüller Gmbh & Co. Kg Apparatus and method for positioning nozzles
US8468779B2 (en) * 2009-05-05 2013-06-25 Sealed Air Corporation (Us) Method and apparatus for positioning, inflating, and sealing a mailer comprising an inner inflatable liner
JP5739150B2 (en) 2010-12-10 2015-06-24 テルモ株式会社 Method for manufacturing medical bag and medical bag
CN201941992U (en) 2010-12-21 2011-08-24 山东新华医疗器械股份有限公司 Double-hose nitrogen charging device

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US10189589B2 (en) 2019-01-29
CN105539917A (en) 2016-05-04
US20160114920A1 (en) 2016-04-28
EP3012200A1 (en) 2016-04-27
CN105539917B (en) 2017-12-12

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