EP2749500B1 - Jacket closing machine with monitoring device and method - Google Patents

Jacket closing machine with monitoring device and method Download PDF

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Publication number
EP2749500B1
EP2749500B1 EP12008636.8A EP12008636A EP2749500B1 EP 2749500 B1 EP2749500 B1 EP 2749500B1 EP 12008636 A EP12008636 A EP 12008636A EP 2749500 B1 EP2749500 B1 EP 2749500B1
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EP
European Patent Office
Prior art keywords
sealing
sealing tool
tray
bottom part
control unit
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EP12008636.8A
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German (de)
French (fr)
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EP2749500A1 (en
Inventor
Alireza Taghipour
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Multivac Sepp Haggenmueller GmbH and Co KG
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Multivac Sepp Haggenmueller GmbH and Co KG
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Application filed by Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Priority to EP12008636.8A priority Critical patent/EP2749500B1/en
Priority to ES12008636T priority patent/ES2530969T3/en
Priority to US14/137,122 priority patent/US9828123B2/en
Publication of EP2749500A1 publication Critical patent/EP2749500A1/en
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    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • 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
    • B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material

Definitions

  • the invention relates to a packaging machine according to the preamble of claim 1 and to a method for operating a tray sealing machine having the features of claim 7.
  • a tray sealing machine monitoring system is known to detect misalignment of a cup in a seal tool bottom or a foreign matter between the seal tool bottom and a seal tool top to prevent faulty seals or damage to the tools.
  • a tray sealing machine with such a monitoring system can not package products in which the product protrudes beyond the bowl rim or dish, as that part of the product is interpreted and evaluated as foreign matter. As a result, the machine stops with a corresponding error message.
  • the tray sealing machine according to the invention with a sealing device which deposits a film on a tray wherein the sealing device comprises a sealing tool upper part and a sealing tool lower part, is characterized in that a matrix monitoring device is provided which has a first and a second monitoring means, wherein the first monitoring means a lateral side of the sealing device and the second monitoring means are provided on a longitudinal side of the sealing device, and the matrix monitoring device is configured to misalign the shell in the sealing tool lower part and / or to detect a presence of a foreign body between the sealing tool bottom and the sealing tool top and to distinguish it from a product projecting upwardly over the cup.
  • a matrix monitoring device is provided which has a first and a second monitoring means, wherein the first monitoring means a lateral side of the sealing device and the second monitoring means are provided on a longitudinal side of the sealing device, and the matrix monitoring device is configured to misalign the shell in the sealing tool lower part and / or to detect a presence of a foreign body between the sealing tool bottom and the sealing tool top and
  • both monitoring means are preferably designed as a light curtain or camera in order to be able to monitor an entire width and a total length of a plane between the sealing tool lower part and the sealing tool upper part.
  • a plane is provided which can be monitored by means of the matrix monitoring device.
  • the plane is preferably provided below the sealing tool upper part.
  • the monitoring can also be performed directly below the sealing tool shell or the film.
  • the controller is configured to stop a lifting movement of the sealing tool lower part in the direction of the sealing tool upper part in an error evaluation in the control in order to prevent possible damage to the sealing tools or the package itself.
  • recipes with data on the position of the shells can be stored in the controller in order to be able either to specify a regional evaluation via the monitoring means or to enable a comparison of the detected elements with the data in the controller in order to hide supernatant products.
  • the method according to the invention for operating a tray sealing machine wherein a misalignment of a shell in the sealing tool lower part and / or a presence of a foreign body between the sealing tool lower part and a sealing tool upper part are detected, is characterized in that by means of a matrix monitoring device and a control between the misalignment of the shell and / or the presence of a foreign body and a product projecting upwards over the shell. This means that products that protrude over the edge of the tray can be packed, yet other causes of error already mentioned can be detected and reacted to.
  • the matrix monitoring device monitors by means of a first monitoring means an area between the sealing tool lower part and the sealing tool upper part in a production direction and by means of a second monitoring means the area between the sealing tool lower part and the sealing tool upper part transversely to the production direction, and the controller evaluates the monitoring means.
  • the controller may discriminate whether the sensing via the monitor means is a regularly upstanding product within the cup and, consequently, no machine stop is required ,
  • a level below the sealing tool upper part and above the sealing tool lower part is monitored by means of the matrix monitoring device, wherein the plane is aligned orthogonal to the lifting movement of the sealing tool lower part.
  • the detection of a misalignment and / or a presence of a foreign body and the distinction of a protruding product during the lifting movement of the sealing tool lower part is performed against the sealing tool upper part, since the shells are in the sealing die bottom and the lifting movement itself still a change, for example, a correction of Position of the shell in the sealing tool base, can cause.
  • the controller which interacts with the matrix monitor, preferably, after detecting a misalignment and / or the presence of a foreign object, stops upward the lifting motion of the sealing tool base and displays an error to the operator by means of a display.
  • the controller preferably evaluates subregions of the first and second monitoring means on the basis of data stored in the control from the position of the shells in the sealing tool lower part, the subregions being provided outside the shells.
  • the partial areas preferably also contain the shell edge, so that only the area intended for the product is hidden. Since only the areas outside of the shells are detected, the protruding products are not detected, but only the foreign bodies or the misaligned shells. One subsequent comparison with data in the controller can be omitted. This shortens the evaluation time for error detection.
  • Fig. 1 1 shows a tray closing machine 1 with a feed belt 2, a sealing device 3, a discharge belt 4, a machine frame 5, a film tensioning device 6, a controller 7 with an operating device and display 8, a film feed roller 9, a film remover 10 and a gripper system 11.
  • the sealing device 3 includes a vertically movable sealing tool base 12 and a partially in Fig. 1 illustrated sealing tool upper part 13.
  • a first monitoring means 14 in the form of a light curtain over the width of the sealing tool upper part 13 is arranged below the sealing tool upper part 13 and below a film 16 which runs along the underside of the sealing tool upper part 13 in order to form a plane in a production direction R.
  • E see Fig. 2
  • a second monitoring means 15 in the form of a light curtain is arranged in the production direction R on the side of the sealing device 3 over the length of the sealing tool upper part 13 in order to monitor the plane E transversely to the production direction R.
  • trays 17 are transported into or out of the sealing device 3 on the feed belt 2 or the discharge belt 4.
  • the trays 17 are evacuated and / or gassed, sealed with the film 16 and the film 16 cut.
  • the film web 16 is fed through the film feed roller 9 and passed through the film tensioning device 6.
  • the cut-off film residue or the remaining film grid is wound up on the film remover 10.
  • the transfer of the shells 17 between the feed belt 2, the sealing station 3 and the discharge belt 4 is carried out by the gripper system 11, which comprises two grippers 11a, 11b.
  • the gripper system 11 is configured to take a group of multiple trays 17 out of the sealing device 3 and at the same time convey another group into it.
  • the sealing device 3 has a not shown in detail lifting system, which raises the sealing tool lower part 12 vertically upwards against the sealing tool upper part 13.
  • the group of shells 17 is thereby lifted by the bowl edges of the shells 17 in a tray receptacle, which is part of the sealing tool lower part 12, are received.
  • the shells 17 are lifted up to the sealing tool upper part 13 and the film 16 is clamped between the sealing tools 12, 13.
  • In this position of the sealing tools 12, 13 to each other no foreign body or part of a product 18 may be located especially in the area of the sealed seam or the bowl edge, otherwise no dense sealing seam could be produced more.
  • the nature of the foreign body and a sealing tool 12, 13 are damaged.
  • the film web 16 may be a flexible film.
  • the plane E in which monitoring by the first and second monitoring means 14, 15 takes place, is located slightly below the sealing tool upper part 13. To facilitate monitoring, the lifting speed of the sealing tool lower part 12 can be reduced.
  • the plane E has a distance from the sealing tool upper part 13, which allows the controller 7 to be able to stop the lifting movement of the sealing tool lower part 12 in the event of a fault in good time before it reaches the sealing tool upper part 13.
  • the distance is preferably less than 100 mm, possibly even only about 50 mm.
  • the matrix monitor 20 (see Fig. 2 ) with two monitoring means 14, 15 allows detection of over the shell edge of the shells 17 protruding products 18 or on the sealing tool base 12 located products, foreign bodies and / or a shell edge itself and the assignment of their position in the plane E.
  • the controller 7 can this detection with the previously stored in the controller 7 data describing the predetermined position of the shells 17 in the sealing tool lower part 12, and thus compare an upwardly projecting product 18 in the shell 17 different from other elements and accordingly stop in case of failure, the lifting movement of the sealing tool base 12 and display information about the error case for the operator via the operating device or display 8. After lowering the sealing tool lower part 12, the operator can eliminate the cause of the error. Possible damage to one of the sealing tools 12, 13 can thus be prevented, even though products 18 projecting over the edge of the shell are packed upwards.
  • Fig. 2 schematically shows the sealing device 3 with the sealing tool lower part 12, the plane E with a matrix monitoring unit 20, the film 16 and the sealing tool shell 13.
  • the sealing tool bottom part 12 two shells 17 are received by their shell edge of the sealing tool base 12 and in the shells 17 is an upward product protruding beyond the shell edge 18.
  • plane E represents the monitoring plane and is generated by the two monitoring means 14, 15.
  • the plane E or the sealing device 3 has a transverse side Q aligned in the direction of production R and a longitudinal side L oriented transversely to the direction of production.
  • the first monitoring means 14 monitors the plane E over the long side L and the second monitoring device 15 monitors the plane E across the transverse side.
  • a matrix monitoring device 20 provided in this way can carry out an evaluation by means of the controller 7, which enables the assignment of the position in the plane E to a triggering of the monitoring means 14, 15.
  • the time for the monitoring depends on the position of the sealing tool base 12 to the level E. In the optimal position for this purpose, the sealing tool lower part 12 or the shells 17 is located directly below the plane E in order to detect even small foreign bodies or shells 17 that are not inserted correctly in the sealing tool lower part 12.

Description

Die Erfindung bezieht sich auf eine Verpackungsmaschine gemäß dem Oberbegriff des Anspruchs 1 und auf ein Verfahren zum Betrieb einer Schalenverschließmaschine mit den Merkmalen des Anspruchs 7.The invention relates to a packaging machine according to the preamble of claim 1 and to a method for operating a tray sealing machine having the features of claim 7.

Aus der EP 1 988 024 ist ein Überwachungssystem für eine Schalenverschließmaschine bekannt, um eine Fehlausrichtung einer Schale in einem Siegelwerkzeugunterteil oder einen Fremdkörper zwischen dem Siegelwerkzeugunterteil und einem Siegelwerkzeugoberteil zu erfassen, um fehlerhafte Siegelungen oder Beschädigungen an den Werkzeugen zu verhindern.From the EP 1 988 024 For example, a tray sealing machine monitoring system is known to detect misalignment of a cup in a seal tool bottom or a foreign matter between the seal tool bottom and a seal tool top to prevent faulty seals or damage to the tools.

Eine Schalenverschließmaschine mit einem solchen Überwachungssystem kann keine Produkte verpacken, bei denen das Produkt über den Schalenrand bzw. die Schale übersteht, da dieser Teil des Produkts als Fremdkörper interpretiert und ausgewertet wird. In Folge hält die Maschine mit einer entsprechenden Fehlermeldung an.A tray sealing machine with such a monitoring system can not package products in which the product protrudes beyond the bowl rim or dish, as that part of the product is interpreted and evaluated as foreign matter. As a result, the machine stops with a corresponding error message.

Aufgabe der vorliegenden Erfindung ist es, ein Überwachungssystem zum Erfassen einer Fehlausrichtung von Schalen und/oder Fremdkörpern für eine Schalenverschließmaschine dahingehend zu verbessern, dass Verpackungen mit überstehenden Produkten hergestellt werden können.It is an object of the present invention to improve a monitoring system for detecting misalignment of trays and / or debris for a tray sealing machine such that packages of overhanging products can be made.

Diese Aufgabe wird gelöst durch eine Schalenverschließmaschine mit den Merkmalen des Anspruchs 1 bzw. durch ein Verfahren zum Betrieb einer Schalenverschließmaschine mit den Merkmalen des Anspruchs 7. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a tray sealing machine with the features of claim 1 or by a method for operating a tray sealing machine with the features of claim 7. Advantageous developments of the invention are specified in the subclaims.

Die erfindungsgemäße Schalenverschließmaschine mit einer Versiegelungsvorrichtung, die eine Folie auf eine Schale aufsiegelt, wobei die Versiegelungsvorrichtung ein Siegelwerkzeugoberteil und ein Siegelwerkzeugunterteil umfasst, zeichnet sich dadurch aus, dass eine Matrixüberwachungseinrichtung vorgesehen ist, die ein erstes und ein zweites Überwachungsmittel aufweist, wobei das erste Überwachungsmittel an einer Querseite der Versiegelungsvorrichtung und das zweite Überwachungsmittel an einer Längsseite der Versiegelungsvorrichtung vorgesehen sind, und die Matrixüberwachungseinrichtung dazu konfiguriert ist, eine Fehlausrichtung der Schale im Siegelwerkzeugunterteil und/oder ein Vorhandensein eines Fremdkörpers zwischen dem Siegelwerkzeugunterteil und dem Siegelwerkzeugoberteil zu erfassen und von einem nach oben über die Schale überstehenden Produkt zu unterscheiden. So können auch über den Schalenrand nach oben überstehende Produkte verpackt werden, ohne dass ein Fehlalarm bzw. ein Maschinenstopp irrtümlich ausgelöst wird.The tray sealing machine according to the invention with a sealing device which deposits a film on a tray, wherein the sealing device comprises a sealing tool upper part and a sealing tool lower part, is characterized in that a matrix monitoring device is provided which has a first and a second monitoring means, wherein the first monitoring means a lateral side of the sealing device and the second monitoring means are provided on a longitudinal side of the sealing device, and the matrix monitoring device is configured to misalign the shell in the sealing tool lower part and / or to detect a presence of a foreign body between the sealing tool bottom and the sealing tool top and to distinguish it from a product projecting upwardly over the cup. Thus, overhanging products can be packed upwards over the edge of the tray, without a false alarm or a machine stop being erroneously triggered.

Dabei sind bevorzugt beide Überwachungsmittel als Lichtvorhang oder Kamera ausgeführt, um eine gesamte Breite und eine gesamte Länge einer Ebene zwischen dem Siegelwerkzeugunterteil und dem Siegelwerkzeugoberteil überwachen zu können.In this case, both monitoring means are preferably designed as a light curtain or camera in order to be able to monitor an entire width and a total length of a plane between the sealing tool lower part and the sealing tool upper part.

Vorzugsweise ist eine Ebene vorgesehen, die mittels der Matrixüberwachungseinrichtung überwachbar ist. Dabei ist die Ebene bevorzugt unterhalb des Siegelwerkzeugoberteils vorgesehen. Somit kann die Überwachung auch direkt unterhalb des Siegelwerkzeugoberteils bzw. der Folie ausgeführt werden.Preferably, a plane is provided which can be monitored by means of the matrix monitoring device. The plane is preferably provided below the sealing tool upper part. Thus, the monitoring can also be performed directly below the sealing tool shell or the film.

In einer vorteilhaften Ausführung ist die Steuerung dazu konfiguriert, um bei einer Fehlerauswertung in der Steuerung eine Hubbewegung des Siegelwerkzeugunterteils in Richtung des Siegelwerkzeugoberteils anzuhalten, um eine mögliche Beschädigung der Siegelwerkzeuge oder der Verpackung selbst zu verhindern.In an advantageous embodiment, the controller is configured to stop a lifting movement of the sealing tool lower part in the direction of the sealing tool upper part in an error evaluation in the control in order to prevent possible damage to the sealing tools or the package itself.

Bevorzugt sind in der Steuerung Rezepte mit Daten von der Lage der Schalen speicherbar, um entweder eine bereichsweise Auswertung über die Überwachungsmittel vorgeben zu können oder um einen Vergleich der erfassten Elemente mit den Daten in der Steuerung zu ermöglichen, um überstehende Produkte auszublenden.Preferably, recipes with data on the position of the shells can be stored in the controller in order to be able either to specify a regional evaluation via the monitoring means or to enable a comparison of the detected elements with the data in the controller in order to hide supernatant products.

Das erfindungsgemäße Verfahren zum Betrieb einer Schalenverschließmaschine, wobei eine Fehlausrichtung einer Schale im Siegelwerkzeugunterteil und/oder ein Vorhandensein eines Fremdkörpers zwischen dem Siegelwerkzeugunterteil und einem Siegelwerkzeugoberteil erfasst werden, zeichnet sich dadurch aus, dass mittels einer Matrixüberwachungseinrichtung und einer Steuerung zwischen der Fehlausrichtung der Schale und/oder dem Vorhandensein eines Fremdkörper und einem nach oben über die Schale überstehenden Produkt unterschieden wird. So können Produkte, die über den Schalenrand nach oben überstehen, verpackt werden und trotzdem anderweitige bereits genannte Fehlerursachen erfasst und darauf reagiert werden.The method according to the invention for operating a tray sealing machine, wherein a misalignment of a shell in the sealing tool lower part and / or a presence of a foreign body between the sealing tool lower part and a sealing tool upper part are detected, is characterized in that by means of a matrix monitoring device and a control between the misalignment of the shell and / or the presence of a foreign body and a product projecting upwards over the shell. This means that products that protrude over the edge of the tray can be packed, yet other causes of error already mentioned can be detected and reacted to.

Bevorzugt überwacht die Matrixüberwachungseinrichtung mittels eines ersten Überwachungsmittels einen Bereich zwischen dem Siegelwerkzeugunterteil und dem Siegelwerkzeugoberteil in einer Produktionsrichtung und mittels eines zweiten Überwachungsmittels den Bereich zwischen dem Siegelwerkzeugunterteil und dem Siegelwerkzeugoberteil quer zur Produktionsrichtung, und die Steuerung wertet die Überwachungsmittel aus. Über in der Steuerung abgelegte Daten, die die Lage der Schalen in dem Siegelwerkzeugunterteil beschreiben, kann die Steuerung die Unterscheidung treffen, ob es sich beim Erfassen über die Überwachungsmittel um ein regulär nach oben überstehendes Produkt innerhalb der Schale handelt und in Folge kein Maschinenstopp erfolgen muss.Preferably, the matrix monitoring device monitors by means of a first monitoring means an area between the sealing tool lower part and the sealing tool upper part in a production direction and by means of a second monitoring means the area between the sealing tool lower part and the sealing tool upper part transversely to the production direction, and the controller evaluates the monitoring means. Through data stored in the controller describing the location of the cups in the sealer tool body, the controller may discriminate whether the sensing via the monitor means is a regularly upstanding product within the cup and, consequently, no machine stop is required ,

In einer besonders vorteilhaften Ausführung wird mittels der Matrixüberwachungseinrichtung eine Ebene unterhalb des Siegelwerkzeugoberteils und oberhalb des Siegelwerkzeugunterteils überwacht, wobei die Ebene orthogonal zur Hubbewegung der Siegelwerkzeugunterteils ausgerichtet ist.In a particularly advantageous embodiment, a level below the sealing tool upper part and above the sealing tool lower part is monitored by means of the matrix monitoring device, wherein the plane is aligned orthogonal to the lifting movement of the sealing tool lower part.

Vorzugsweise wird die Erfassung einer Fehlausrichtung und/oder eines Vorhandenseins eines Fremdkörpers und die Unterscheidung von einem überstehendem Produkt während der Hubbewegung des Siegelwerkzeugunterteils entgegen dem Siegelwerkzeugoberteil durchgeführt, da die Schalen sich in dem Siegelwerkzeugunterteil befinden und die Hubbewegung selbst noch eine Veränderung, beispielsweise eine Korrektur der Lage der Schale im Siegelwerkzeugunterteil, hervorrufen kann.Preferably, the detection of a misalignment and / or a presence of a foreign body and the distinction of a protruding product during the lifting movement of the sealing tool lower part is performed against the sealing tool upper part, since the shells are in the sealing die bottom and the lifting movement itself still a change, for example, a correction of Position of the shell in the sealing tool base, can cause.

Die Steuerung, die mit der Matrixüberwachungseinrichtung zusammenwirkt, hält bevorzugt nach der Erfassung einer Fehlausrichtung und/oder des Vorhandenseins eines Fremdkörpers die Hubbewegung des Siegelwerkzeugunterteils nach oben an und zeigt einem Bediener die Fehlerursache mittels einer Anzeige an.The controller, which interacts with the matrix monitor, preferably, after detecting a misalignment and / or the presence of a foreign object, stops upward the lifting motion of the sealing tool base and displays an error to the operator by means of a display.

Vorzugsweise wertet die Steuerung anhand von in der Steuerung abgelegten Daten von der Lage der Schalen im Siegelwerkzeugunterteil Teilbereiche der ersten und zweiten Überwachungsmittel aus, wobei die Teilbereiche außerhalb der Schalen vorgesehen sind. Die Teilbereiche beinhalten aber vorzugsweise noch den Schalenrand, so dass nur der Bereich, der für das Produkt vorgesehen ist, ausgeblendet wird. Da hierbei nur die Bereiche außerhalb der Schalen erfasst werden, werden die nach oben überstehenden Produkte nicht erfasst, sondern nur die Fremdkörper oder die fehlausgerichteten Schalen. Ein nachfolgender Vergleich mit Daten in der Steuerung kann entfallen. Dies verkürzt somit die Auswertezeit zur Fehlererkennung.The controller preferably evaluates subregions of the first and second monitoring means on the basis of data stored in the control from the position of the shells in the sealing tool lower part, the subregions being provided outside the shells. However, the partial areas preferably also contain the shell edge, so that only the area intended for the product is hidden. Since only the areas outside of the shells are detected, the protruding products are not detected, but only the foreign bodies or the misaligned shells. One subsequent comparison with data in the controller can be omitted. This shortens the evaluation time for error detection.

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

Fig. 1
eine erfindungsgemäße Schalenverschließmaschine und
Fig. 2
eine schematische Ansicht einer Versiegelungsvorrichtung.
In the following, an advantageous embodiment of the invention is explained in detail with reference to a drawing. In detail show:
Fig. 1
a shell sealing machine according to the invention and
Fig. 2
a schematic view of a sealing device.

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

Fig. 1 zeigt eine Schalenverschließmaschine 1 mit einem Zuführband 2, einer Versiegelungsvorrichtung 3, einem Abführband 4, einem Maschinengestell 5, einer Folienspanneinrichtung 6, einer Steuerung 7 mit einer Bedieneinrichtung und Anzeige 8, einer Folienzuführrolle 9, einem Folienrestaufwickler 10 und einem Greifersystem 11. Die Versiegelungsvorrichtung 3 umfasst ein vertikal bewegbares Siegelwerkzeugunterteil 12 und ein nur teilweise in Fig. 1 dargestelltes Siegelwerkzeugoberteil 13. Fig. 1 1 shows a tray closing machine 1 with a feed belt 2, a sealing device 3, a discharge belt 4, a machine frame 5, a film tensioning device 6, a controller 7 with an operating device and display 8, a film feed roller 9, a film remover 10 and a gripper system 11. The sealing device 3 includes a vertically movable sealing tool base 12 and a partially in Fig. 1 illustrated sealing tool upper part 13.

An einer Einlaufseite der Versiegelungseinrichtung 3 ist unterhalb des Siegelwerkzeugoberteils 13 und unterhalb einer Folie 16, die an der Unterseite des Siegelwerkzeugoberteils 13 entlang läuft, ein erstes Überwachungsmittel 14 in Form eines Lichtvorhangs über die Breite des Siegelwerkzeugoberteils 13 angeordnet, um in einer Produktionsrichtung R eine Ebene E (siehe Fig. 2) zu überwachen. Ein zweites Überwachungsmittel 15 in Form eines Lichtvorhangs ist in Produktionsrichtung R seitlich der Versiegelungseinrichtung 3 über die Länge des Siegelwerkzeugoberteils 13 angeordnet, um die Ebene E quer zur Produktionsrichtung R zu überwachen.On an inlet side of the sealing device 3, a first monitoring means 14 in the form of a light curtain over the width of the sealing tool upper part 13 is arranged below the sealing tool upper part 13 and below a film 16 which runs along the underside of the sealing tool upper part 13 in order to form a plane in a production direction R. E (see Fig. 2 ). A second monitoring means 15 in the form of a light curtain is arranged in the production direction R on the side of the sealing device 3 over the length of the sealing tool upper part 13 in order to monitor the plane E transversely to the production direction R.

Auf dem Zuführband 2 bzw. dem Abführband 4 werden im Betrieb Schalen 17 in die Versiegelungsvorrichtung 3 hinein bzw. aus ihr heraus transportiert. In der Versiegelungsvorrichtung 3 werden die Schalen 17 evakuiert und/oder begast, mit der Folie 16 versiegelt und die Folie 16 geschnitten. Die Folienbahn 16 wird durch die Folienzuführrolle 9 zugeführt und durch die Folienspannvorrichtung 6 geführt. Der abgeschnittene Folienrest bzw. das Restfoliengitter wird auf dem Folienrestaufwickler 10 aufgewickelt.In operation, trays 17 are transported into or out of the sealing device 3 on the feed belt 2 or the discharge belt 4. In the sealing device 3, the trays 17 are evacuated and / or gassed, sealed with the film 16 and the film 16 cut. The film web 16 is fed through the film feed roller 9 and passed through the film tensioning device 6. The cut-off film residue or the remaining film grid is wound up on the film remover 10.

Die Übergabe der Schalen 17 zwischen dem Zuführband 2, der Versiegelungsstation 3 und dem Abführband 4 erfolgt durch das Greifersystem 11, das zwei Greifer 11a, 11 b umfasst. Das Greifersystem 11 ist so ausgebildet, dass es eine Gruppe von mehreren Schalen 17 aus der Versiegelungsvorrichtung 3 heraus nimmt und gleichzeitig eine andere Gruppe hinein befördern kann.The transfer of the shells 17 between the feed belt 2, the sealing station 3 and the discharge belt 4 is carried out by the gripper system 11, which comprises two grippers 11a, 11b. The gripper system 11 is configured to take a group of multiple trays 17 out of the sealing device 3 and at the same time convey another group into it.

Die Versiegelungsvorrichtung 3 weist ein nicht näher dargestelltes Hubsystem auf, welches das Siegelwerkzeugunterteil 12 vertikal nach oben gegen das Siegelwerkzeugoberteil 13 anhebt. Die Gruppe von Schalen 17 wird dabei mit angehoben, indem die Schalenränder der Schalen 17 in einer Schalenaufnahme, die Teil des Siegelwerkzeugunterteils 12 ist, aufgenommen werden. Die Schalen 17 werden bis zum Siegelwerkzeugoberteil 13 angehoben und die Folie 16 zwischen den Siegelwerkzeugen 12, 13 geklemmt. In dieser Stellung der Siegelwerkzeuge 12, 13 zueinander darf sich kein Fremdkörper oder ein Teil eines Produkts 18 vor allem im Bereich der Siegelnaht bzw. des Schalenrands befinden, da sonst keine dichte Siegelnaht mehr erzeugt werden könnte. Je nach Art des Fremdkörpers kann auch ein Siegelwerkzeug 12, 13 beschädigt werden. Für nach oben über den Schalenrand der Schale 17 hinausstehende Produkte 18 sind entsprechende Aussparungen im Siegelwerkzeugoberteil 13 vorgesehen und die Folienbahn 16 kann eine flexible Folie sein. Die Ebene E, in der eine Überwachung durch das erste und zweite Überwachungsmittel 14, 15 erfolgt, befindet sich etwas unterhalb des Siegelwerkzeugoberteils 13. Um eine Überwachung zu erleichtern, kann die Hubgeschwindigkeit des Siegelwerkzeugunterteils 12 reduziert werden. Die Ebene E weist eine Entfernung gegenüber dem Siegelwerkzeugoberteil 13 auf, die es der Steuerung 7 ermöglicht, die Hubbewegung des Siegelwerkzeugunterteils 12 im Fehlerfall rechtzeitig anhalten zu können, bevor es das Siegelwerkzeugoberteil 13 erreicht. Die Entfernung ist vorzugsweise kleiner als 100 mm, ggf. sogar nur etwa 50 mm.The sealing device 3 has a not shown in detail lifting system, which raises the sealing tool lower part 12 vertically upwards against the sealing tool upper part 13. The group of shells 17 is thereby lifted by the bowl edges of the shells 17 in a tray receptacle, which is part of the sealing tool lower part 12, are received. The shells 17 are lifted up to the sealing tool upper part 13 and the film 16 is clamped between the sealing tools 12, 13. In this position of the sealing tools 12, 13 to each other no foreign body or part of a product 18 may be located especially in the area of the sealed seam or the bowl edge, otherwise no dense sealing seam could be produced more. Depending on the nature of the foreign body and a sealing tool 12, 13 are damaged. For upwardly over the shell edge of the shell 17 protruding products 18 corresponding recesses in the sealing tool upper part 13 are provided and the film web 16 may be a flexible film. The plane E, in which monitoring by the first and second monitoring means 14, 15 takes place, is located slightly below the sealing tool upper part 13. To facilitate monitoring, the lifting speed of the sealing tool lower part 12 can be reduced. The plane E has a distance from the sealing tool upper part 13, which allows the controller 7 to be able to stop the lifting movement of the sealing tool lower part 12 in the event of a fault in good time before it reaches the sealing tool upper part 13. The distance is preferably less than 100 mm, possibly even only about 50 mm.

Die Matrixüberwachungseinrichtung 20 (siehe Fig. 2) mit zwei Überwachungsmitteln 14, 15 erlaubt eine Erfassung von über den Schalenrand der Schalen 17 überstehenden Produkten 18 oder auf dem Siegelwerkzeugunterteil 12 befindlichen Produkten, Fremdkörpern und/oder einem Schalenrand selbst und die Zuordnung von deren Lage in der Ebene E. Die Steuerung 7 kann diese Erfassung mit den in der Steuerung 7 zuvor abgelegten Daten, die die vorgegebene Lage der Schalen 17 in dem Siegelwerkzeugunterteil 12 beschreiben, vergleichen und somit ein nach oben überstehendes Produkt 18 in der Schale 17 von anderen Elementen unterscheiden und entsprechend im Fehlerfall die Hubbewegung des Siegelwerkzeugunterteils 12 anhalten und über die Bedieneinrichtung bzw. Anzeige 8 eine Information über den Fehlerfall für den Bediener anzeigen. Der Bediener kann nach einem Absenken des Siegelwerkzeugunterteils 12 die Fehlerursache beheben. Ein möglicher Schaden an einem der Siegelwerkzeuge 12, 13 kann somit verhindert werden, obwohl nach oben über den Schalenrand überstehende Produkte 18 verpackt werden.The matrix monitor 20 (see Fig. 2 ) with two monitoring means 14, 15 allows detection of over the shell edge of the shells 17 protruding products 18 or on the sealing tool base 12 located products, foreign bodies and / or a shell edge itself and the assignment of their position in the plane E. The controller 7 can this detection with the previously stored in the controller 7 data describing the predetermined position of the shells 17 in the sealing tool lower part 12, and thus compare an upwardly projecting product 18 in the shell 17 different from other elements and accordingly stop in case of failure, the lifting movement of the sealing tool base 12 and display information about the error case for the operator via the operating device or display 8. After lowering the sealing tool lower part 12, the operator can eliminate the cause of the error. Possible damage to one of the sealing tools 12, 13 can thus be prevented, even though products 18 projecting over the edge of the shell are packed upwards.

Fig. 2 zeigt schematisch die Versiegelungseinrichtung 3 mit dem Siegelwerkzeugunterteil 12, der Ebene E mit einer Matrixüberwachungseinheit 20, der Folie 16 und dem Siegelwerkzeugoberteil 13. Im Siegelwerkzeugunterteil 12 sind zwei Schalen 17 mittels ihres Schalenrands vom Siegelwerkzeugunterteil 12 aufgenommen und in den Schalen 17 befindet sich ein nach oben über den Schalenrand überstehendes Produkt 18. Bevor das Siegelwerkzeugunterteil 12 bei seiner Hubbewegung nach oben das Siegelwerkzeugoberteil 13 erreicht, kreuzt es die Ebene E, die die Überwachungsebene darstellt und von den zwei Überwachungsmitteln 14, 15 erzeugt ist. Die Ebene E bzw. die Versiegelungsvorrichtung 3 weist eine in Produktionsrichtung R ausgerichtete Querseite Q und eine quer zur Produktionsrichtung ausgerichtete Längsseite L auf. Das erste Überwachungsmittel 14 überwacht die Ebene E über die Längsseite L und die zweite Überwachungseinrichtung 15 überwacht die Ebene E über die Querseite. Eine so vorgesehene Matrixüberwachungseinrichtung 20 kann mittels der Steuerung 7 eine Auswertung ausführen, die die Zuordnung der Lage in der Ebene E einer Auslösung der Überwachungsmittel 14, 15 ermöglicht. Der Zeitpunkt für die Überwachung ist von der Position des Siegelwerkzeugunterteils 12 zur Ebene E abhängig. In der hierfür optimalen Position befindet sich das Siegelwerkzeugunterteil 12 bzw. die Schalen 17 direkt unter der Ebene E, um auch kleine Fremdkörper oder nicht korrekt im Siegelwerkzeugunterteil 12 eingelegte Schalen 17 zu erkennen. Fig. 2 schematically shows the sealing device 3 with the sealing tool lower part 12, the plane E with a matrix monitoring unit 20, the film 16 and the sealing tool shell 13. In the sealing tool bottom part 12 two shells 17 are received by their shell edge of the sealing tool base 12 and in the shells 17 is an upward product protruding beyond the shell edge 18. Before the sealing tool lower part 12 reaches the sealing tool upper part 13 during its lifting movement upwards, it crosses plane E, which represents the monitoring plane and is generated by the two monitoring means 14, 15. The plane E or the sealing device 3 has a transverse side Q aligned in the direction of production R and a longitudinal side L oriented transversely to the direction of production. The first monitoring means 14 monitors the plane E over the long side L and the second monitoring device 15 monitors the plane E across the transverse side. A matrix monitoring device 20 provided in this way can carry out an evaluation by means of the controller 7, which enables the assignment of the position in the plane E to a triggering of the monitoring means 14, 15. The time for the monitoring depends on the position of the sealing tool base 12 to the level E. In the optimal position for this purpose, the sealing tool lower part 12 or the shells 17 is located directly below the plane E in order to detect even small foreign bodies or shells 17 that are not inserted correctly in the sealing tool lower part 12.

Denkbar sind auch zwei Kameras, die in Längs- und in Querrichtung zur Versiegelungseinrichtung 3 die Ebene E überwachen.Also conceivable are two cameras which monitor the plane E in the longitudinal direction and in the transverse direction to the sealing device 3.

Claims (12)

  1. Tray-sealing machine (1) with a sealing device (3) which seals a film (16) onto a tray (17), the sealing device (3) comprising a sealing tool upper part (13) and a sealing tool bottom part (12), characterized in that a control unit (7) is present and a matrix monitoring device (20) is provided which comprises a first and a second monitoring means (14, 15), the first monitoring means (14) being provided at a transverse side (Q) of the sealing device (3), and the second monitoring means (15) being provided at a longitudinal side (L) of the sealing device (3), and the matrix monitoring device (20) is configured to detect a misalignment of the tray (17) in the sealing tool bottom part (12) and/or the presence of foreign matter between the sealing tool bottom part (12) and the sealing tool upper part (13) and distinguish it from product (18) projecting upwards from the tray (17).
  2. Tray-sealing machine according to claim 1, characterized in that the monitoring means (12, 13) are designed as light curtain or camera.
  3. Tray-sealing machine according to one of the preceding claims, characterized in that a plane (E) is provided which may be monitored by means of the matrix monitoring device (20).
  4. Tray-sealing machine according to claim 3, characterized in that the plane (E) is provided underneath the sealing tool upper part (13).
  5. Tray-sealing machine according to one of the preceding claims, characterized in that the control unit (7) is configured to stop a lifting motion of the sealing tool bottom part (12) towards the sealing tool upper part (13) in case of an error evaluation in the control unit (7).
  6. Tray-sealing machine according to one of the preceding claims, characterized in that recipes with data on the position of the trays (17) may be stored in the control unit (7).
  7. Method for operating a tray-sealing machine (1), where a misalignment of a tray (17) in the sealing tool bottom part (12) and/or the presence of foreign matter between said sealing tool bottom part (12) and a sealing tool upper part (13) are detected, characterized in that by means of a matrix monitoring device (20) and a control unit (7), a distinction between the misalignment of the tray (17) and/or the presence of foreign matter and product (18) projecting upwards from the tray (17) is made.
  8. Method according to claim 7, characterized in that the matrix monitoring device (20) monitors a region between the sealing tool bottom part (12) and the sealing tool upper part (13) in a production direction (R) by means of first monitoring means (14), and the region between the sealing tool bottom part (12) and the sealing tool upper part (13) transversely to the production direction (R) by means of second monitoring means (15), and the control unit (7) evaluates the monitoring means (14, 15).
  9. Method according to claim 7 or 8, characterized in that the matrix monitoring device (20) monitors a plane (E) underneath the sealing tool upper part (13) and above the sealing tool bottom part (12), the plane (E) being oriented orthogonally to the lifting motion of the sealing tool bottom part (12).
  10. Method according to one of claims 7 to 9, characterized in that the detection of a misalignment and/or the presence of foreign matter and the distinction from product (18) projecting from the tray (17) are performed during the lifting motion of the sealing tool bottom part (12) towards the sealing tool upper part (13).
  11. Method according to one of claims 7 to 10, characterized in that the control unit (7) which cooperates with the matrix monitoring device (20) stops the lifting motion of the sealing tool bottom part (12) to the top after a misalignment and/or the presence of foreign matter has been detected and indicates the cause for the error to an operator.
  12. Method according to one of claims 7 to 11, characterized in that the control unit (7) evaluates partial areas of the first and second monitoring means (14, 15) with reference to data on the position of the trays (17) in the sealing tool bottom part (12) that are stored in the control unit (7), the partial areas being provided outside the trays (17).
EP12008636.8A 2012-12-27 2012-12-27 Jacket closing machine with monitoring device and method Active EP2749500B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12008636.8A EP2749500B1 (en) 2012-12-27 2012-12-27 Jacket closing machine with monitoring device and method
ES12008636T ES2530969T3 (en) 2012-12-27 2012-12-27 Cuvette closing machine with monitoring device and procedure
US14/137,122 US9828123B2 (en) 2012-12-27 2013-12-20 Tray-sealing machine with monitoring device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12008636.8A EP2749500B1 (en) 2012-12-27 2012-12-27 Jacket closing machine with monitoring device and method

Publications (2)

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EP2749500A1 EP2749500A1 (en) 2014-07-02
EP2749500B1 true EP2749500B1 (en) 2015-02-11

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ES2530969T3 (en) 2015-03-09
US20140182245A1 (en) 2014-07-03
US9828123B2 (en) 2017-11-28
EP2749500A1 (en) 2014-07-02

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