EP3354582A1 - Labelling machine - Google Patents

Labelling machine Download PDF

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Publication number
EP3354582A1
EP3354582A1 EP17153481.1A EP17153481A EP3354582A1 EP 3354582 A1 EP3354582 A1 EP 3354582A1 EP 17153481 A EP17153481 A EP 17153481A EP 3354582 A1 EP3354582 A1 EP 3354582A1
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EP
European Patent Office
Prior art keywords
conveyor
label
labeling machine
products
machine according
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.)
Granted
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EP17153481.1A
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German (de)
French (fr)
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EP3354582B1 (en
Inventor
Timo Reimann
Lars Rimkeit
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Els - European Labelling System & Co KG GmbH
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Els - European Labelling System & Co KG GmbH
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Priority to EP17153481.1A priority Critical patent/EP3354582B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C1/00—Labelling flat essentially-rigid surfaces
    • B65C1/02—Affixing labels to one flat surface of articles, e.g. of packages, of flat bands
    • B65C1/021—Affixing labels to one flat surface of articles, e.g. of packages, of flat bands the label being applied by movement of the labelling head towards the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/26—Devices for applying labels
    • B65C9/28—Air-blast devices

Definitions

  • the invention relates to a labeling machine with a product conveyor for transporting products to be labeled, a label conveyor for supplying self-adhesive labels in respective Etikettierpositionen relative to the products on the product conveyor, and at least one movable in a space between conveyor elements of the label conveyor arranged pressure member for lifting the labels from the label conveyor and pressing them against respective label receiving surfaces of the products.
  • the products to be labeled can be, for example, food packaging which is produced in a packaging machine by deep-drawing a film, filled with contents such as sausage slices or the like, and then sealed.
  • the label receiving surface is often formed by the bottom surface of the packaging containers.
  • the label conveyor is disposed below the product conveyor so as to transport the labels in a direction transverse to the conveying direction of the product conveyor.
  • the labels are then placed on the label conveyor in a timely manner during each delivery cycle of the product conveyor by means of a label dispenser located at one end of the label conveyor and delivered to a position in which each label is located below the label receiving surface of the associated packaging container is located. With the help of the An horrorgans the labels are then pressed against the bottom surface of the respective packaging container.
  • the conveying elements of the label conveyor can be transport belts arranged parallel to one another and driven intermittently together.
  • a plurality of plate-shaped pressure members are usually arranged, which are raised together to lift the labels from the label conveyor and press against the label receiving surfaces.
  • the packaging containers are arranged in a plurality of parallel tracks on the product conveyor, so that the pressing members press several labels simultaneously against the bottom surfaces of the packaging containers during each labeling operation.
  • labeling lacks the necessary back pressure for the pressure element. This can result in the label not sticking to the bottom surface of the packaging container or dropping off again and then falling back on the label conveyor and interfering with the subsequent operation. Similar problems may also generally occur in cases where, for whatever reason, the label receiving surfaces of the products are not at the same height.
  • the object of the invention is to provide a labeling machine, which offers a higher reliability in sticking the labels to the individual products.
  • the pressure member has at least one directed to a label receiving surface, connected to a compressed air source nozzle, and that a control device is adapted to cause during each pressing operation of the An horrorgans the delivery of an air blast from the nozzle.
  • the invention makes it possible to exert an additional pressing force on the label during the labeling process with the aid of the compressed air blast from the nozzle, so that it is securely attached to the label receiving surface even in the case of a lack of counterpressure.
  • a reliable attachment of the label to the label receiving surface is possible in this way, even if the label receiving surface is not in its desired position and thus at maximum stroke of the Antikorgans still a gap between the Antikorgan and the label supported thereon on the one hand and the label receiving surface on the other , Due to the blast of compressed air, this gap can be bridged, so that the label is "blown" as it were against the product to be labeled.
  • the label with the help of the compressed air blast is fully adhered to the label receiving surface. It is sufficient if the label is attached locally so that it does not fall back within the labeling machine. The complete sticking of the label can then take place at a later time, for example when the individual packaging containers are separated from one another and placed on a support such as a conveyor belt or the like.
  • a plurality of plate-shaped pressure members are provided in the spaces between the conveying elements of the label conveyor.
  • at least one of these pressure elements is equipped with one or more nozzles for emitting the air blast.
  • the nozzles may be arranged in a row along the upper edge of the pressure member which extends below the center of the labels.
  • the compressed air source may be a compressed air source of a pneumatic system, which is usually present anyway in a labeling machine, for example for a pneumatic lifting drive of the pressure organs.
  • the control device then has an electronically controlled valve, through which the nozzles of the Antikorgans be connected to the compressed air source.
  • a pressure accumulator is provided between the valve and the compressed air source, which contains a certain volume of pressurized air and, when the valve opens and compressed air is discharged through the nozzles of the Anyakorgans, dampens the pressure drop in the upstream pneumatic system.
  • labeling machine has a product conveyor 10, with the products to be labeled 12, 14 in several parallel tracks intermittently in the direction perpendicular to the plane in Fig. 1 be transported.
  • the products 12, 14 are food packages that have been produced in a packaging machine, not shown, by deep-drawing a film 16, filled with contents 18 and then sealed at the top with a sealed cover film 20.
  • the individual packaging containers are still connected by parts of the film 16 and the cover 20 together. The separation of the individual containers takes place only at a later stage during the packaging process.
  • the product conveyor 10 is formed by conveyor belts 22 with which the longitudinal edges of the film webs are held and transported.
  • a label conveyor 24 is arranged, with which during each delivery cycle of the product conveyor 10 one of the number of tracks of the products 12, 14 corresponding number of self-adhesive labels 26 are supplied in labeling positions, in which each label below a through the bottom of the respective Packaging container formed label receiving surface 28 is located.
  • the label conveyor 24 is formed by a plurality of parallel endless conveyor belts 30 which extend in the direction transverse to the transport direction of the product conveyor 10 between two shafts 32, at least one of which is drivable.
  • a label dispenser 34 of known type is arranged, with which the labels 26 are given on time to the label conveyor, so that the labels have the appropriate distances from each other when the label conveyor in the in Fig. 1 stops shown position.
  • a plate-shaped pressure member 36 is arranged, which in Fig. 1 is shown in a section running within the plane of the plate.
  • the pressure member 36 has a trapezoidal, widening upward contour, and its horizontal upper edge is located in the Fig. 1 shown slightly below the upper surface of the label conveyor 24, so that the transport of the labels 26 is not hindered.
  • the label conveyor 24 is held on a frame 38 on which a pneumatic cylinder 40 is mounted. With the help of the pneumatic cylinder 40, the pressing member 36 is extendable upward to lift the labels 26 from the label conveyor 24 and press against the label receiving surfaces 28 of the products 12, 14, as in Fig. 2 is shown.
  • FIGS. 1 and 2 a situation is shown in which one of the products to be labeled, namely the product 14, is defective. Due to a mistake, no contents 18 were placed in this packaging container, with the result that the bottom of this packaging container was not pushed down and therefore the label receiving surface 28 formed on the bottom of the bottom is in a higher position than the other containers. As Fig. 2 Therefore, between the label receiving surface 28 of the product 14 and the upper edge of the pressure member 36 remains a gap, so that the local label 26 can not be pressed against the product 14, while the rest of the products 12, the labels are pressed correctly.
  • the pressing member 36 has in its upper edge a row of nozzles 42 which are connected via a channel system 44 formed in the pressure member (only in FIG Fig. 1 shown) compressed air source 46 are connected.
  • the compressed air source 46 is in the example shown part of a pneumatic system through which a valve 48 and the pneumatic cylinder 40 is supplied with compressed air.
  • Another valve 50 allows the introduction of compressed air into two flexible hoses 52, which are connected to two symmetrically arranged compressed air inlets 54 of the conduit system 44 in the pressure member 36, so that all nozzles 42 can be supplied substantially uniformly with compressed air.
  • an accumulator 56 is arranged in the example shown, which serves to dampen the pressure drop when opening the valve 50.
  • valves 48 and 50 are controlled by an electronic controller 58 which also communicates with or is integrated with the drive control for the label conveyor 24 and the product conveyor 10 so that the pressure member 36 operates synchronously with the power stroke of the label conveyor 24 and the product conveyor 10 can.
  • FIGS. 3 and 4 show this condition.
  • Fig. 4 It can also be seen that, in addition to the pressure element 36, there are also a plurality of further plate-shaped pressure elements 60 which are arranged symmetrically with respect to the pressure element 36 in the intermediate spaces between the conveyor belts 30.
  • the pressing members 60 have the same outline shape as the pressing member 36 and are raised and lowered together with these by the pneumatic cylinder 40. However, they may have a smaller thickness than the pressure member 36, since they contain no nozzles 42 and, accordingly, no conduit system 44.
  • the single row of nozzles of the pressure member 36 is sufficient.
  • valve 50 is closed again, and the pressure members 36, 60 are lowered, so that a new power stroke can begin.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Labeling Devices (AREA)

Abstract

Etikettiermaschine mit einem Produktförderer (10) zum Transport von zu etikettierenden Produkten (12, 14), einem Etikettenförderer (24) zum Zuführen von selbstklebenden Etiketten (26) in jeweilige Etikettierpositionen relativ zu den Produkten (12, 14) auf dem Produktförderer (10), und mindestens einem beweglich in einem Zwischenraum zwischen Förderelementen (30) des Etikettenförderers (24) angeordneten Andruckorgan (36) zum Abheben der Etiketten (26) von dem Etikettenförderer (24) und zum Andrücken derselben gegen jeweilige Etikettenaufnahmeflächen (28) der Produkte (12, 14), dadurch gekennzeichnet, dass das Andruckorgan (36) mindestens eine auf eine Etikettenaufnahmefläche (28) gerichtete, an eine Druckluftquelle (46) angeschlossene Düse (42) aufweist, und dass eine Steuereinrichtung (58) dazu ausgebildet ist, während jedes Andruckvorgangs des Andruckorgans (36) die Abgabe eines Luftstoßes aus der Düse (42) zu veranlassen.Labeling machine with a product conveyor (10) for transporting products to be labeled (12, 14), a label conveyor (24) for feeding self-adhesive labels (26) into respective labeling positions relative to the products (12, 14) on the product conveyor (10) and at least one pressure member (36) movably disposed in a space between conveyor elements (30) of the label conveyor (24) for lifting the labels (26) from the label conveyor (24) and pressing them against respective label receiving surfaces (28) of the products (12 , 14), characterized in that the pressure member (36) has at least one nozzle (42) directed onto a label receiving surface (28) and connected to a compressed air source (46), and that a control device (58) is adapted during each pressing operation the pressure member (36) to cause the delivery of a puff of air from the nozzle (42).

Description

Die Erfindung betrifft eine Etikettiermaschine mit einem Produktförderer zum Transport von zu etikettierenden Produkten, einem Etikettenförderer zum Zuführen von selbstklebenden Etiketten in jeweilige Etikettierpositionen relativ zu den Produkten auf dem Produktförderer, und mindestens einem beweglich in einem Zwischenraum zwischen Förderelementen des Etikettenförderers angeordneten Andruckorgan zum Abheben der Etiketten von dem Etikettenförderer und zum Andrücken derselben gegen jeweilige Etikettenaufnahmeflächen der Produkte.The invention relates to a labeling machine with a product conveyor for transporting products to be labeled, a label conveyor for supplying self-adhesive labels in respective Etikettierpositionen relative to the products on the product conveyor, and at least one movable in a space between conveyor elements of the label conveyor arranged pressure member for lifting the labels from the label conveyor and pressing them against respective label receiving surfaces of the products.

Bei den zu etikettierenden Produkten kann es beispielsweise um Lebensmittelverpackungen handeln, die in einer Verpackungsmaschine durch Tiefziehen einer Folie hergestellt, mit Inhalten wie beispielsweise Wurstscheiben oder dergleichen befüllt und dann versiegelt werden. Die Etikettenaufnahmefläche wird häufig durch die Bodenfläche der Verpackungsbehälter gebildet. In dem Fall ist der Etikettenförderer so unterhalb des Produktförderers angeordnet, dass er die Etiketten in einer Richtung quer zur Transportrichtung des Produktförderers transportiert. Die Etiketten werden dann während jedes Fördertaktes des Produktförderers mit Hilfe eines Etikettenspenders, der an einem Ende des Etikettenförderers angeordnet ist, zeitgerecht auf den Etikettenförderer aufgegeben und in eine Position zugeführt, in der sich jedes Etikett unter der Etikettenaufnahmefläche des zugehörigen Verpackungsbehälters befindet. Mit Hilfe des Andruckorgans werden die Etiketten dann gegen die Bodenfläche des jeweiligen Verpackungsbehälters angedrückt.The products to be labeled can be, for example, food packaging which is produced in a packaging machine by deep-drawing a film, filled with contents such as sausage slices or the like, and then sealed. The label receiving surface is often formed by the bottom surface of the packaging containers. In that case, the label conveyor is disposed below the product conveyor so as to transport the labels in a direction transverse to the conveying direction of the product conveyor. The labels are then placed on the label conveyor in a timely manner during each delivery cycle of the product conveyor by means of a label dispenser located at one end of the label conveyor and delivered to a position in which each label is located below the label receiving surface of the associated packaging container is located. With the help of the Andruckorgans the labels are then pressed against the bottom surface of the respective packaging container.

Bei den Förderelementen des Etikettenförderers kann es sich um parallel zueinander angeordnete Transportriemen handeln, die gemeinsam intermittierend angetrieben werden. In den Zwischenräumen zwischen den einzelnen Transportriemen sind zumeist mehrere plattenförmige Andruckorgane angeordnet, die gemeinsam angehoben werden, um die Etiketten vom Etikettenförderer abzuheben und gegen die Etikettenaufnahmeflächen zu drücken.The conveying elements of the label conveyor can be transport belts arranged parallel to one another and driven intermittently together. In the spaces between the individual conveyor belts, a plurality of plate-shaped pressure members are usually arranged, which are raised together to lift the labels from the label conveyor and press against the label receiving surfaces.

In einigen Anwendungsfällen gibt es bei einer Etikettiermaschine der eingangs genannten Art nur begrenzte Möglichkeiten, während des Andruckvorgangs einen Gegendruck auf die Produkte auszuüben und so dafür zu sorgen, dass die Etiketten mit einer ausreichenden Kraft gegen die Etikettenaufnahmeflächen angedrückt werden. Das gilt insbesondere bei tiefgezogenen Verpackungsbehältern der oben beschriebenen Art, die während des Etikettiervorgangs bereits an der Oberseite verschlossen sind. Der Gegendruck für das Andruckorgan beruht dann im wesentlichen nur auf der Gewichtskraft des in dem Verpackungsbehälter aufgenommenen Erzeugnisses.In some applications, there are limited possibilities in a labeling machine of the type mentioned above to exert a counterpressure on the products during the pressing operation and thus to ensure that the labels are pressed against the label receiving surfaces with sufficient force. This is especially true for thermoformed packaging containers of the type described above, which are already closed at the top during the labeling process. The counter-pressure for the pressure member then relies substantially only on the weight of the product received in the packaging container.

Zumeist sind die Verpackungsbehälter in mehreren parallelen Spuren auf dem Produktförderer angeordnet, so dass die Andruckorgane während jedes Etikettiervorgangs mehrere Etiketten gleichzeitig gegen die Bodenflächen der Verpackungsbehälter andrücken. Gelegentlich kommt es vor, dass einzelne Verpackungsbehälter aufgrund eines Fehlers im vorausgegangenen Verpackungsprozess nicht mit einem Erzeugnis befüllt wurden, sondern leer geblieben sind. In diesem Fall fehlt es beim Etikettieren an dem nötigen Gegendruck für das Andruckorgan. Das kann dazu führen, dass das Etikett nicht an die Bodenfläche des Verpackungsbehälters angeklebt wird oder wieder abfällt und dann auf den Etikettenförderer zurückfällt und den weiteren Arbeitsablauf stört. Ähnliche Probleme können generell auch in den Fällen auftreten, in denen aus irgendeinem Grund die Etikettenaufnahmeflächen der Produkte nicht auf derselben Höhe liegen.In most cases, the packaging containers are arranged in a plurality of parallel tracks on the product conveyor, so that the pressing members press several labels simultaneously against the bottom surfaces of the packaging containers during each labeling operation. Occasionally it happens that individual packaging containers were not filled with a product due to a mistake in the previous packaging process, but remained empty. In this case, labeling lacks the necessary back pressure for the pressure element. This can result in the label not sticking to the bottom surface of the packaging container or dropping off again and then falling back on the label conveyor and interfering with the subsequent operation. Similar problems may also generally occur in cases where, for whatever reason, the label receiving surfaces of the products are not at the same height.

Aufgabe der Erfindung ist es, eine Etikettiermaschine zu schaffen, die eine höhere Funktionssicherheit beim Ankleben der Etiketten an die einzelnen Produkte bietet.The object of the invention is to provide a labeling machine, which offers a higher reliability in sticking the labels to the individual products.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Andruckorgan mindestens eine auf eine Etikettenaufnahmefläche gerichtete, an eine Druckluftquelle angeschlossene Düse aufweist, und dass eine Steuereinrichtung dazu ausgebildet ist, während jedes Andruckvorgang des Andruckorgans die Abgabe eines Luftstoßes aus der Düse zu veranlassen.This object is achieved in that the pressure member has at least one directed to a label receiving surface, connected to a compressed air source nozzle, and that a control device is adapted to cause during each pressing operation of the Andruckorgans the delivery of an air blast from the nozzle.

Die Erfindung erlaubt es, während des Etikettiervorgangs mit Hilfe des Druckluftstoßes aus der Düse eine zusätzliche Andruckkraft auf das Etikett auszuüben, so dass dieses auch bei mangelndem Gegendruck sicher an die Etikettenaufnahmefläche angeheftet wird. Ein zuverlässiges Anheften des Etiketts an die Etikettenaufnahmefläche ist auf diese Weise selbst dann möglich, wenn die Etikettenaufnahmefläche sich nicht in ihrer Sollposition befindet und somit auch bei maximalem Hub des Andruckorgans noch ein Zwischenraum zwischen dem Andruckorgan und dem darauf abgestützten Etikett einerseits und der Etikettenaufnahmefläche andererseits besteht. Durch den Druckluftstoß kann dieser Zwischenraum überbrückt werden, so dass das Etikett gleichsam gegen das zu etikettierende Produkt "geblasen" wird.The invention makes it possible to exert an additional pressing force on the label during the labeling process with the aid of the compressed air blast from the nozzle, so that it is securely attached to the label receiving surface even in the case of a lack of counterpressure. A reliable attachment of the label to the label receiving surface is possible in this way, even if the label receiving surface is not in its desired position and thus at maximum stroke of the Andruckorgans still a gap between the Andruckorgan and the label supported thereon on the one hand and the label receiving surface on the other , Due to the blast of compressed air, this gap can be bridged, so that the label is "blown" as it were against the product to be labeled.

Dabei ist es nicht erforderlich, dass das Etikett mit Hilfe des Druckluftstoßes vollflächig and die Etikettenaufnahmefläche angeklebt wird. Es genügt, wenn das Etikett lokal angeheftet wird, damit es innerhalb der Etikettiermaschine nicht wieder zurückfällt. Das vollständige Ankleben des Etiketts kann dann zu einem späteren Zeitpunkt erfolgen, beispielsweise dann, wenn die einzelnen Verpackungsbehälter voneinander getrennt und auf eine Unterlage wie ein Förderband oder dergleichen aufgesetzt werden.It is not necessary that the label with the help of the compressed air blast is fully adhered to the label receiving surface. It is sufficient if the label is attached locally so that it does not fall back within the labeling machine. The complete sticking of the label can then take place at a later time, for example when the individual packaging containers are separated from one another and placed on a support such as a conveyor belt or the like.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous embodiments of the invention are specified in the subclaims.

In einer vorteilhaften Ausführungsform sind in den Zwischenräumen zwischen den Förderelementen des Etikettenförderers mehrere plattenförmige Andruckorgane vorgesehen. In dem Fall genügt es, wenn mindestens eines dieser Andruckorgane mit einer oder mehreren Düsen zur Abgabe des Luftstoßes ausgestattet ist. Beispielsweise können die Düsen in einer Reihe längs der Oberkante desjenigen Andruckorgans angeordnet sein, das unterhalb der Mitte der Etiketten verläuft.In an advantageous embodiment, a plurality of plate-shaped pressure members are provided in the spaces between the conveying elements of the label conveyor. In that case, it is sufficient if at least one of these pressure elements is equipped with one or more nozzles for emitting the air blast. For example, the nozzles may be arranged in a row along the upper edge of the pressure member which extends below the center of the labels.

Bei der Druckluftquelle kann es sich um eine Druckluftquelle eines Pneumatiksystems handeln, das zumeist bei einer Etikettiermaschine ohnehin vorhanden ist, beispielsweise für einen pneumatischen Hubantrieb der Andruckorgane.The compressed air source may be a compressed air source of a pneumatic system, which is usually present anyway in a labeling machine, for example for a pneumatic lifting drive of the pressure organs.

Die Steuereinrichtung weist dann ein elektronisch gesteuertes Ventil auf, durch das die Düsen des Andruckorgans mit der Druckluftquelle verbindbar sind. In einer vorteilhaften Ausführungsform ist zwischen dem Ventil und der Druckluftquelle ein Druckspeicher vorgesehen, der ein gewisses Volumen der unter Druck stehenden Luft enthält und, wenn das Ventil öffnet und Druckluft über die Düsen des Andruckorgans abgelassen wird, den Druckabfall im vorgelagerten Pneumatiksystem dämpft.The control device then has an electronically controlled valve, through which the nozzles of the Andruckorgans be connected to the compressed air source. In an advantageous embodiment, a pressure accumulator is provided between the valve and the compressed air source, which contains a certain volume of pressurized air and, when the valve opens and compressed air is discharged through the nozzles of the Andruckorgans, dampens the pressure drop in the upstream pneumatic system.

Im folgenden wird ein Ausführungsbeispiel anhand der Zeichnung näher erläutert.In the following an embodiment will be explained in more detail with reference to the drawing.

Es zeigen:

Fig. 1
einen schematischen Schnitt durch wesentliche Teile einer Etikettiermaschine gemäß der Erfindung;
Figuren 2 und 3
die Etikettiermaschine nach Fig. 1 in verschiedenen Betriebsphasen während eines Etikettiervorgangs; und
Fig. 4
einen vergrößerten Teilschnitt längs der Linie IV - IV in Fig. 3.
Show it:
Fig. 1
a schematic section through essential parts of a labeling machine according to the invention;
FIGS. 2 and 3
the labeling machine after Fig. 1 at different stages of operation during a labeling process; and
Fig. 4
an enlarged partial section along the line IV - IV in Fig. 3 ,

Die in Fig. 1 gezeigte Etikettiermaschine weist einen Produktförderer 10 auf, mit dem zu etikettierenden Produkte 12, 14 in mehreren parallelen Spuren intermittierend in der Richtung senkrecht zur Zeichenebene in Fig. 1 transportiert werden. Im gezeigten Beispiel handelt es sich bei den Produkten 12, 14 um Lebensmittelverpackungen, die in einer nicht gezeigten Verpackungsmaschine durch Tiefziehen einer Folie 16 hergestellt, mit Inhalten 18 befüllt und dann an der Oberseite mit einer aufgesiegelten Abdeckfolie 20 verschlossen wurden. In dem in Fig. 1 gezeigten Zustand sind die einzelnen Verpackungsbehälter noch durch Teile der Folie 16 und der Abdeckfolie 20 miteinander verbunden. Die Trennung der einzelnen Behälter erfolgt erst in einem späteren Stadium während des Verpackungsprozesses.In the Fig. 1 shown labeling machine has a product conveyor 10, with the products to be labeled 12, 14 in several parallel tracks intermittently in the direction perpendicular to the plane in Fig. 1 be transported. In the example shown, the products 12, 14 are food packages that have been produced in a packaging machine, not shown, by deep-drawing a film 16, filled with contents 18 and then sealed at the top with a sealed cover film 20. In the in Fig. 1 As shown, the individual packaging containers are still connected by parts of the film 16 and the cover 20 together. The separation of the individual containers takes place only at a later stage during the packaging process.

Der Produktförderer 10 wird durch Förderbänder 22 gebildet, mit denen die Längsränder der Folienbahnen gehalten und transportiert werden.The product conveyor 10 is formed by conveyor belts 22 with which the longitudinal edges of the film webs are held and transported.

Unterhalb des Produktförderers 10 ist ein Etikettenförderer 24 angeordnet, mit dem während jedes Fördertaktes des Produktförderers 10 eine der Anzahl der Spuren der Produkte 12, 14 entsprechende Anzahl selbstklebender Etiketten 26 in Etikettierpositionen zugeführt werden, in der sich jedes Etikett unterhalb einer durch den Boden des betreffenden Verpackungsbehälters gebildeten Etikettenaufnahmefläche 28 befindet. Der Etikettenförderer 24 wird durch mehrere parallele endlose Transportriemen 30 gebildet, die sich in der Richtung quer zur Transportrichtung des Produktförderers 10 zwischen zwei Wellen 32 erstrecken, von denen mindestens eine antreibbar ist.Below the product conveyor 10 a label conveyor 24 is arranged, with which during each delivery cycle of the product conveyor 10 one of the number of tracks of the products 12, 14 corresponding number of self-adhesive labels 26 are supplied in labeling positions, in which each label below a through the bottom of the respective Packaging container formed label receiving surface 28 is located. The label conveyor 24 is formed by a plurality of parallel endless conveyor belts 30 which extend in the direction transverse to the transport direction of the product conveyor 10 between two shafts 32, at least one of which is drivable.

An einem Ende des Etikettenförderers 24, rechts in Fig. 1, ist ein Etikettenspender 34 von bekannter Bauart angeordnet, mit dem die Etiketten 26 zeitgerecht auf den Etikettenförderer aufgegeben werden, so dass die Etiketten die passenden Abstände zueinander aufweisen, wenn der Etikettenförderer in der in Fig. 1 gezeigten Position anhält.At one end of the label conveyor 24, right in Fig. 1 , a label dispenser 34 of known type is arranged, with which the labels 26 are given on time to the label conveyor, so that the labels have the appropriate distances from each other when the label conveyor in the in Fig. 1 stops shown position.

In einem Zwischenraum zwischen zweien der Transportriemen 30 ist ein plattenförmiges Andruckorgan 36 angeordnet, das in Fig. 1 in einem innerhalb der Plattenebene verlaufenden Schnitt gezeigt ist. Das Andruckorgan 36 hat einen trapezförmigen, sich nach oben erweiternden Umriss, und seine waagerechte Oberkante liegt in dem in Fig. 1 gezeigten Zustand geringfügig unterhalb der oberen Oberfläche des Etikettenförderers 24, so dass der Transport der Etiketten 26 nicht behindert wird.In a space between two of the conveyor belt 30, a plate-shaped pressure member 36 is arranged, which in Fig. 1 is shown in a section running within the plane of the plate. The pressure member 36 has a trapezoidal, widening upward contour, and its horizontal upper edge is located in the Fig. 1 shown slightly below the upper surface of the label conveyor 24, so that the transport of the labels 26 is not hindered.

Der Etikettenförderer 24 ist an einem Gestell 38 gehalten, an dem auch ein Pneumatikzylinder 40 montiert ist. Mit Hilfe des Pneumatikzylinders 40 ist das Andruckorgan 36 nach oben ausfahrbar, um die Etiketten 26 vom Etikettenförderer 24 abzuheben und gegen die Etikettenaufnahmeflächen 28 der Produkte 12, 14 anzudrücken, wie in Fig. 2 gezeigt ist.The label conveyor 24 is held on a frame 38 on which a pneumatic cylinder 40 is mounted. With the help of the pneumatic cylinder 40, the pressing member 36 is extendable upward to lift the labels 26 from the label conveyor 24 and press against the label receiving surfaces 28 of the products 12, 14, as in Fig. 2 is shown.

In Figuren 1 und 2 ist allerdings eine Situation dargestellt, in der eines der zu etikettierenden Produkte, nämlich das Produkt 14, fehlerhaft ist. Aufgrund eines Fehlers wurde in diesen Verpackungsbehälter kein Inhalt 18 eingelegt, mit der Folge, dass der Boden dieses Verpackungsbehälters nicht nach unten durchgedrückt wurde und sich deshalb die an der Unterseite des Bodens gebildete Etikettenaufnahmefläche 28 in einer höheren Position befindet als bei den übrigen Behältern. Wie Fig. 2 zeigt, verbleibt deshalb zwischen der Etikettenaufnahmefläche 28 des Produkts 14 und der Oberkante des Andruckorgans 36 ein Zwischenraum, so dass das dortige Etikett 26 nicht gegen das Produkt 14 angedrückt werden kann, während bei den übrigen Produkten 12 die Etiketten korrekt angedrückt werden.In FIGS. 1 and 2 However, a situation is shown in which one of the products to be labeled, namely the product 14, is defective. Due to a mistake, no contents 18 were placed in this packaging container, with the result that the bottom of this packaging container was not pushed down and therefore the label receiving surface 28 formed on the bottom of the bottom is in a higher position than the other containers. As Fig. 2 Therefore, between the label receiving surface 28 of the product 14 and the upper edge of the pressure member 36 remains a gap, so that the local label 26 can not be pressed against the product 14, while the rest of the products 12, the labels are pressed correctly.

Um sicherzustellen, dass auch bei dem Produkt 14 das Etikett 26 zumindest provisorisch an den Behälterboden angeheftet werden kann, weist das Andruckorgan 36 in seiner Oberkante eine Reihe von Düsen 42 auf, die über ein in dem Andruckorgan gebildetes Kanalsystem 44 mit einer (nur in Fig. 1 gezeigten) Druckluftquelle 46 verbunden sind.In order to ensure that the label 26 can at least temporarily be attached to the container bottom even in the case of the product 14, the pressing member 36 has in its upper edge a row of nozzles 42 which are connected via a channel system 44 formed in the pressure member (only in FIG Fig. 1 shown) compressed air source 46 are connected.

Die Druckluftquelle 46 ist im gezeigten Beispiel Teil eines Pneumatiksystems, durch das über ein Ventil 48 auch der Pneumatikzylinder 40 mit Druckluft versorgt wird. Ein weiteres Ventil 50 ermöglicht die Einleitung von Druckluft in zwei flexible Schläuche 52, die an zwei symmetrisch angeordnete Drucklufteinlässe 54 des Leitungssystems 44 im Andruckorgan 36 angeschlossen sind, so dass alle Düsen 42 im wesentlichen gleichmäßig mit Druckluft versorgt werden können.The compressed air source 46 is in the example shown part of a pneumatic system through which a valve 48 and the pneumatic cylinder 40 is supplied with compressed air. Another valve 50 allows the introduction of compressed air into two flexible hoses 52, which are connected to two symmetrically arranged compressed air inlets 54 of the conduit system 44 in the pressure member 36, so that all nozzles 42 can be supplied substantially uniformly with compressed air.

Zwischen den Ventilen 48 und 50 ist im gezeigten Beispiel ein Druckspeicher 56 angeordnet, der dazu dient, den Druckabfall beim Öffnen des Ventils 50 zu dämpfen.Between the valves 48 and 50, an accumulator 56 is arranged in the example shown, which serves to dampen the pressure drop when opening the valve 50.

Die Ventile 48 und 50 werden durch eine elektronische Steuereinrichtung 58 gesteuert, die auch mit der Antriebssteuerung für den Etikettenförderer 24 und den Produktförderer 10 kommuniziert oder in diese integriert ist, so dass das Andruckorgan 36 synchron mit dem Arbeitstakt des Etikettenförderers 24 und des Produktförderers 10 arbeiten kann.The valves 48 and 50 are controlled by an electronic controller 58 which also communicates with or is integrated with the drive control for the label conveyor 24 and the product conveyor 10 so that the pressure member 36 operates synchronously with the power stroke of the label conveyor 24 and the product conveyor 10 can.

In dem in Fig. 2 gezeigten Zustand ist der Produktförderer 10 angehalten, und der Pneumatikzylinder 40 wurde ausgefahren, so dass das Andruckorgan 36 die Etiketten gegen die Produkte 12 andrückt. In diesem Zustand wird das Ventil 50 geöffnet, so dass über die Düsen 42 ein zusätzlicher Luftstoß auf alle Etiketten 26 ausgeübt wird, die sich in der Etikettierposition befinden. Bei dem Produkt 14 wird dadurch das Etikett 26 gegen die Etikettenaufnahmefläche 28 geblasen und somit an das Produkt angeheftet, obgleich das Andruckorgan 36 keinen unmittelbaren Kontakt zu dem Produkt hat.In the in Fig. 2 As shown, the product conveyor 10 is stopped, and the pneumatic cylinder 40 has been extended so that the pressing member 36 presses the labels against the products 12. In this state, the valve 50 is opened, so that via the nozzles 42 an additional air blast is exerted on all labels 26 which are in the labeling position. In the product 14, the label 26 is thereby blown against the label receiving surface 28 and thus adhered to the product, although the pressing member 36 has no direct contact with the product.

Dieser Zustand ist in Figuren 3 und 4 dargestellt. In Fig. 4 ist außerdem zu erkennen, dass zusätzlich zu dem Andruckorgan 36 noch mehrere weitere plattenförmige Andruckorgane 60 vorhanden sind, die symmetrisch zu dem Andruckorgan 36 in den Zwischenräumen zwischen den Transportriemen 30 angeordnet sind. Die Andruckorgane 60 haben die gleiche Umrissform wie das Andruckorgan 36 und werden gemeinsam mit diesen durch den Pneumatikzylinder 40 angehoben und abgesenkt. Sie können jedoch eine geringere Dicke als das Andruckorgan 36 aufweisen, da sie keine Düsen 42 und dementsprechend auch kein Leitungssystem 44 enthalten. Um das Etikett 26 in der in Fig. 4 gezeigten Weise an das Produkt 14 anzuheften genügt die einzelne Düsenreihe des Andruckorgans 36.This condition is in FIGS. 3 and 4 shown. In Fig. 4 It can also be seen that, in addition to the pressure element 36, there are also a plurality of further plate-shaped pressure elements 60 which are arranged symmetrically with respect to the pressure element 36 in the intermediate spaces between the conveyor belts 30. The pressing members 60 have the same outline shape as the pressing member 36 and are raised and lowered together with these by the pneumatic cylinder 40. However, they may have a smaller thickness than the pressure member 36, since they contain no nozzles 42 and, accordingly, no conduit system 44. To put the label 26 in the in Fig. 4 To attach shown manner to the product 14, the single row of nozzles of the pressure member 36 is sufficient.

Nachdem der Luftstoß abgegeben wurde, wird das Ventil 50 wieder geschlossen, und die Andruckorgane 36, 60 werden abgesenkt, so dass ein neuer Arbeitstakt beginnen kann.After the air blast has been released, the valve 50 is closed again, and the pressure members 36, 60 are lowered, so that a new power stroke can begin.

Claims (7)

Etikettiermaschine mit einem Produktförderer (10) zum Transport von zu etikettierenden Produkten (12, 14), einem Etikettenförderer (24) zum Zuführen von selbstklebenden Etiketten (26) in jeweilige Etikettierpositionen relativ zu den Produkten (12, 14) auf dem Produktförderer (10), und mindestens einem beweglich in einem Zwischenraum zwischen Förderelementen (30) des Etikettenförderers (24) angeordneten Andruckorgan (36) zum Abheben der Etiketten (26) von dem Etikettenförderer (24) und zum Andrücken derselben gegen jeweilige Etikettenaufnahmeflächen (28) der Produkte (12, 14), dadurch gekennzeichnet, dass das Andruckorgan (36) mindestens eine auf eine Etikettenaufnahmefläche (28) gerichtete, an eine Druckluftquelle (46) angeschlossene Düse (42) aufweist, und dass eine Steuereinrichtung (58) dazu ausgebildet ist, während jedes Andruckvorgangs des Andruckorgans (36) die Abgabe eines Luftstoßes aus der Düse (42) zu veranlassen.Labeling machine with a product conveyor (10) for transporting products to be labeled (12, 14), a label conveyor (24) for feeding self-adhesive labels (26) into respective labeling positions relative to the products (12, 14) on the product conveyor (10) and at least one pressure member (36) movably disposed in a space between conveyor elements (30) of the label conveyor (24) for lifting the labels (26) from the label conveyor (24) and pressing them against respective label receiving surfaces (28) of the products (12 , 14), characterized in that the pressure member (36) has at least one nozzle (42) directed onto a label receiving surface (28) and connected to a compressed air source (46), and that a control device (58) is adapted during each pressing operation the pressure member (36) to cause the delivery of a puff of air from the nozzle (42). Etikettiermaschine nach Anspruch 1, bei der der Etikettenförderer (34) mehrere parallele, in Abstand zueinander angeordnete Transportriemen als Förderelemente (30) aufweist und das Andruckorgan (36) die Form einer Platte hat, die eine parallel zu dem Transportriemen (30) verlaufende Kante aufweist und in der Richtung senkrecht zu dieser Kante ausfahrbar ist.Labeling machine according to claim 1, wherein the label conveyor (34) has a plurality of parallel, spaced apart conveyor belts as conveying elements (30) and the pressing member (36) has the shape of a plate having an edge parallel to the conveyor belt (30) and extendable in the direction perpendicular to this edge. Etikettiermaschine nach Anspruch 2, bei der mehrere Düsen (42) in einer Reihe in einer Kante des Andruckorgans (36) angeordnet sind.Labeling machine according to claim 2, wherein a plurality of nozzles (42) are arranged in a row in an edge of the pressing member (36). Etikettiermaschine nach Anspruch 2 oder 3, mit mehreren parallelen, gemeinsam bewegbaren plattenförmigen Andruckorganen (36, 60), von denen mindestens eines (60) ohne Düsen ausgebildet ist.Labeling machine according to claim 2 or 3, with a plurality of parallel, jointly movable plate-shaped pressure members (36, 60), of which at least one (60) is formed without nozzles. Etikettiermaschine nach einem der vorstehenden Ansprüche, bei der zwischen der Druckluftquelle (46) und einem Ventil (50) zum Unterbrechen und Öffnen der Druckluftzufuhr zu der Düse (42) ein Druckspeicher (56) vorgesehen ist.Labeling machine according to one of the preceding claims, wherein between the compressed air source (46) and a valve (50) for interrupting and opening the compressed air supply to the nozzle (42), a pressure accumulator (56) is provided. Etikettiermaschine nach einem der vorstehenden Ansprüche, bei der der Produktförderer (10) für den Transport von Produkten (12, 14) in der Form von aus einer gemeinsamen Folie (16) tiefgezogenen Verpackungsbehältern ausgebildet ist und die Etikettenaufnahmefläche (28) jeweils eine Bodenfläche des Verpackungsbehälters ist.Labeling machine according to one of the preceding claims, wherein the product conveyor (10) for the transport of products (12, 14) in the form of from a common film (16) deep-drawn packaging containers is formed and the label receiving surface (28) each have a bottom surface of the packaging container is. Etikettiermaschine nach einem der vorstehenden Ansprüche, bei der die Transportrichtung des Etikettenförderers (24) rechtwinklig zur Transportrichtung des Produktförderers (10) verläuft und an einem Ende des Etikettenförderers (24) ein Etikettenspender (34) angeordnet ist.Labeling machine according to one of the preceding claims, wherein the transport direction of the label conveyor (24) perpendicular to the transport direction of the product conveyor (10) and at one end of the label conveyor (24) a label dispenser (34) is arranged.
EP17153481.1A 2017-01-27 2017-01-27 Labelling machine Active EP3354582B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021106625U1 (en) 2021-12-03 2021-12-10 Project Automation & Engineering Gmbh banding sheet
DE202021100153U1 (en) 2021-01-14 2022-04-20 Project Automation & Engineering Gmbh Device for banding and/or labeling an object

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2092095A (en) * 1981-02-04 1982-08-11 Norcros Investments Ltd Label applying apparatus
JPS61164936A (en) * 1984-12-27 1986-07-25 東芝テック株式会社 Labeller
US20040250960A1 (en) * 2003-06-12 2004-12-16 Harte James R. Labeling device having enhanced sanitary design
JP2013071737A (en) * 2011-09-27 2013-04-22 Lintec Corp Sheet pasting apparatus and sheet pasting method
JP2014088201A (en) * 2012-10-30 2014-05-15 Lintec Corp Sheet sticking device and sheet sticking method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2092095A (en) * 1981-02-04 1982-08-11 Norcros Investments Ltd Label applying apparatus
JPS61164936A (en) * 1984-12-27 1986-07-25 東芝テック株式会社 Labeller
US20040250960A1 (en) * 2003-06-12 2004-12-16 Harte James R. Labeling device having enhanced sanitary design
JP2013071737A (en) * 2011-09-27 2013-04-22 Lintec Corp Sheet pasting apparatus and sheet pasting method
JP2014088201A (en) * 2012-10-30 2014-05-15 Lintec Corp Sheet sticking device and sheet sticking method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021100153U1 (en) 2021-01-14 2022-04-20 Project Automation & Engineering Gmbh Device for banding and/or labeling an object
DE202021106625U1 (en) 2021-12-03 2021-12-10 Project Automation & Engineering Gmbh banding sheet

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