EP2749499B1 - Packaging machine with a protective device and method - Google Patents

Packaging machine with a protective device and method Download PDF

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Publication number
EP2749499B1
EP2749499B1 EP12008645.9A EP12008645A EP2749499B1 EP 2749499 B1 EP2749499 B1 EP 2749499B1 EP 12008645 A EP12008645 A EP 12008645A EP 2749499 B1 EP2749499 B1 EP 2749499B1
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EP
European Patent Office
Prior art keywords
protective
packaging machine
protective hood
shaft
rolls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP12008645.9A
Other languages
German (de)
French (fr)
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EP2749499A1 (en
Inventor
Albert Gabler
Wolfgang Negele
Stefan Bieringer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Multivac Sepp Haggenmueller GmbH and Co KG
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Multivac Sepp Haggenmueller GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Priority to EP12008645.9A priority Critical patent/EP2749499B1/en
Priority to ES12008645.9T priority patent/ES2540998T3/en
Priority to US14/137,467 priority patent/US10118784B2/en
Publication of EP2749499A1 publication Critical patent/EP2749499A1/en
Application granted granted Critical
Publication of EP2749499B1 publication Critical patent/EP2749499B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • 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
    • B65B57/005—Safety-devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • 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
    • B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved

Definitions

  • the invention relates to a packaging machine with a protective device having the features of claim 1 and to a method for operating a packaging machine having the features of claim 9.
  • thermoforming packaging machines which have protective covers which are not mechanically connected to the machine frame, but by means of sensors, a presence of the protective cover is monitored by the machine control.
  • These protective hoods are removable and are deposited on the ground or otherwise off-side to make the covered area accessible on all sides for cleaning or maintenance activities.
  • the arbitrary removal of the protective hoods and the arbitrary discarding by the operator may cause damage to the protective hoods and a tailor-made reassembly and the following query by sensors can be difficult or even prevented.
  • One possible consequence of this is that the thermoforming packaging machine can no longer be started.
  • Another problem is the risk of contamination on, for example, placed on the ground protective hoods. For reasons of hygiene, this is critical especially in the food industry or not allowed.
  • EP-A-483 446 shows a Verckungsmaschine with a pivotable about an axis protective flap to cover a working area of the packaging machine.
  • the object of the present invention is to provide a protective device for a packaging machine, preferably for a tray sealing machine or a thermoforming packaging machine, and to provide a method of operating a packaging machine which allows the simplest possible construction of a protective device and good accessibility of the area under the protective device.
  • the packaging machine according to the invention with a protective device which comprises a protective hood and a frame, is characterized in that the frame has a shaft with two rollers and the guard guides, wherein the guides cooperate with the rollers such that the protective cover liftable to the Wave is tiltable and movable.
  • This structurally simple and therefore inexpensive to produce protective device leads to a very good accessibility for the operator both laterally from the operating side of the packaging machine, as well as from above.
  • the protective hood remains connected to the packaging machine and can not be damaged.
  • the shaft is rotatably mounted on the frame.
  • the two rollers are preferably synchronized with one another by means of the shaft in order to support a rectilinear movement of the protective hood.
  • rollers on a tread with such a high friction that sliding friction along the guides is prevented.
  • the rollers have a running surface with a damping in order to enable a damping effect with a stop of the protective hood without further damping elements.
  • the running surfaces of the rollers are preferably made of an elastomer in order to be able to have both a high friction and to achieve a damping effect.
  • the elastomer may be rubber or silicone.
  • a means for monitoring the working position of the protective hood is provided in order to release a production start by means of a machine control only when the protective hood is in its working position.
  • the guard is in a removal position keylessly removable from the guard to further improve the accessibility of the back of the packaging machine for special maintenance purposes.
  • the advantage lies in a simple operation of the protective device by the protective hood can be raised and pushed backwards or transversely to a production direction to make the area underneath the operator as large as possible accessible for cleaning or maintenance purposes.
  • the rollers act as a damper in the end position after moving the guard, to avoid damage and noise when reaching the end position.
  • a rectilinear displacement of the protective hood is supported in order to require no further guide devices for such a rectilinear movement.
  • the position of the protective hood is queried in a working position by means of at least one means for monitoring the working position, wherein the means may be a sensor or a switch and a machine control only releases a production start when the protective hoods are in their working position.
  • the monitoring means can operate without contact.
  • the protective hood can preferably be removed without a key in a removal position.
  • Fig. 1 shows a Schalenversch separatemaschine invention 1 with a arranged between a discharge device 2 and a feeder 3 Verschmonystation 4.
  • the supply and discharge means 3, 2 each comprise a protective device 5, each with a protective cover 6, their positioning in a closed or working position by means not shown Sensors are monitored by a machine control 7, so that the tray sealing machine 1 can only be started by an operator when both protective hoods 6 are in the working position. In the working position, the protective covers 6 rest on the machine frame 8 and prevent access to the covered area.
  • the protective hoods 6 have a handle 9 on the operating side 10 of the tray closing machine 1 in order to allow manual operation of the protective device 5 or the protective hood 6 itself.
  • Fig. 2 shows the tray sealing machine 1 with a raised protective cover 6 at the discharge device 2.
  • the protective device 5 at the discharge device 2 comprises the Further, a frame 11, which is arranged on the side of the discharge device 2 on the left in the figure, and extends along the rear side of the tray closing machine 1.
  • the protective device 5 covers a portion of a servo-driven conveyor belt 12 which discharges trays from the capping station 4 and the tray closing machine 1.
  • the trays are closed with a cover film.
  • the protective cover 6 is lifted during the opening process to the extent that the front lower edge 13 of the protective cover 6 is located above the upper edge 14 of the frame 11 in order subsequently to enable a displacement of the protective cover 6 to the rear.
  • the lifting operation takes place about a shaft 15, which in the Figures 3 and 4 is shown visible.
  • the Fig. 3 shows the tray sealing machine 1 with the protective cover 6, which has been pushed to the rear in the open position.
  • the protective cover 6 surrounds with guides 16, which are executed by means of Blechabkantungen in a laterally oriented L or U-shape (as shown), rollers 17 which in FIG. 4 are shown in more detail.
  • the rollers 17 are themselves connected to the shaft 15 at the shaft ends and the shaft 15 is mounted on two holders 18 on the frame 11 of the protection device 5. Since the rollers 17 have a rubberized tread with high friction, the sliding movement of the protective cover 6 is synchronized such that the protective hood 6 performs a rearwardly directed rectilinear motion, and thereby run the guides 16 on the rollers 17.
  • Fig. 4 shows the Schalenversch separatemaschine 1 with a detached from the guard 5 protective cover 6.
  • the two inner guides 16 and a respective recess 21 of the protective hood 6 are shown.
  • the protective cover 6 is raised to a removal position, so that the rollers 17 are in the region of the recess 21, and the rollers 17 can get out of the guides 16 out.
  • the opening and also the closing movement of the guard 6 is defined only by the arrangement and interaction of the shaft 15 together with the two rollers 17 on the frame 11 of the guard 5 and the guides 16 with the stops 19 of the guard 6 ,
  • the invention is not limited to a tray closing machine 1, but also extends to a thermoforming packaging machine as well as to transport devices which feed products and discharge packages and together with the packaging machine form a packaging system. All of these devices can have a protective device 5 in one of the variants described here.
  • the invention also includes an equivalent embodiment, in which instead of the shaft 15 with the two rollers 17 sliding elements are provided which cooperate in the same way with the protective hood.
  • the frame 11 in the production direction of the packaging machine 1 is shorter than the protective cover 6. This causes the front lower edge 13 of the protective cover 6 even with an unintentional lowering of the protective cover 6 on the upper edge 14 of the frame 11 rests (see FIG. 2 ), as soon as the protective cover 6 is pushed backwards by a short distance. In this way, the reliability of the packaging machine 1 is improved because it is prevented by the contact between the edges 13, 14, that the edge 13 of the protective cover 6 comes into contact, for example, with the conveyor belt 2 or trays thereon.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Closing Of Containers (AREA)
  • Basic Packing Technique (AREA)

Description

Die Erfindung bezieht sich auf eine Verpackungsmaschine mit einer Schutzeinrichtung mit den Merkmalen des Anspruchs 1 sowie auf ein Verfahren zum Betrieb einer Verpackungsmaschine mit den Merkmalen des Anspruchs 9.The invention relates to a packaging machine with a protective device having the features of claim 1 and to a method for operating a packaging machine having the features of claim 9.

Es sind aus der WO 2011/154743 , speziell in den Figuren 1 und 2 gezeigt, und aus der EP 1996470 B1 , speziell Figur 1, Schalenverschließmaschinen mit Schutzabdeckungen bekannt, wobei die Schutzabdeckungen um eine horizontale Achse nach oben schwenkbar am Maschinenrahmen vorgesehen sind. Damit kann der abgedeckte Bereich von einer vorderen und hinteren Bedienerseite her für Reinigungs- oder Wartungsarbeiten zugänglich gemacht werden, wobei hierzu an der vorderen und hinteren Bedienerseite jeweils schwenkbare Schutzabdeckung vorhanden sein müssen. Eine Zugänglichkeit von oben ist hierbei nicht gegeben.They are from the WO 2011/154743 , especially in the FIGS. 1 and 2 shown, and from the EP 1996470 B1 , specifically FIG. 1 Shell sealing machines with protective covers known, wherein the protective covers are provided about a horizontal axis pivotally upwardly on the machine frame. Thus, the covered area can be made accessible from a front and rear operator side for cleaning or maintenance work, in which case each pivotable protective cover must be present on the front and rear operator side. Accessibility from above is not given here.

Aus der Praxis und EP 1772384 A1 , speziell in der Figur 3 gezeigt, sind Tiefziehverpackungsmaschinen bekannt, die Schutzabdeckungen aufweisen, die nicht mit dem Maschinenrahmen mechanisch verbunden sind, wobei aber mittels Sensoren ein Vorhandensein der Schutzabdeckung von der Maschinensteuerung überwacht wird. Diese Schutzhauben sind abnehmbar und werden auf den Boden oder anderweitig abseits abgelegt, um den abgedeckten Bereich allseitig für Reinigungs- oder Wartungstätigkeiten zugänglich zu machen. Durch das beliebige Entfernen der Schutzhauben und das willkürliche Ablegen durch das Bedienpersonal kann es zu Beschädigungen an den Schutzhauben kommen und ein passgenaues Wiederauflegen und die folgende Abfrage durch Sensoren kann erschwert oder sogar verhindert werden. Eine mögliche Folge davon ist, dass die Tiefziehverpackungsmaschine nicht mehr gestartet werden kann. Ein weiteres Problem stellt die Gefahr von Verschmutzungen an beispielsweise auf dem Boden abgelegten Schutzhauben dar. Aus Gründen der Hygiene ist dies vor allem im Lebensmittelbereich kritisch oder nicht zulässig.From practice and EP 1772384 A1 , especially in the FIG. 3 Thermoforming packaging machines are known which have protective covers which are not mechanically connected to the machine frame, but by means of sensors, a presence of the protective cover is monitored by the machine control. These protective hoods are removable and are deposited on the ground or otherwise off-side to make the covered area accessible on all sides for cleaning or maintenance activities. The arbitrary removal of the protective hoods and the arbitrary discarding by the operator may cause damage to the protective hoods and a tailor-made reassembly and the following query by sensors can be difficult or even prevented. One possible consequence of this is that the thermoforming packaging machine can no longer be started. Another problem is the risk of contamination on, for example, placed on the ground protective hoods. For reasons of hygiene, this is critical especially in the food industry or not allowed.

EP-A-483446 zeigt eine Verckungsmaschine mit einer um eine Achse schwenkbaren Schutzklappe um einen Arbeitsbereich der Verpackungsmaschine abzudecken. EP-A-483 446 shows a Verckungsmaschine with a pivotable about an axis protective flap to cover a working area of the packaging machine.

Aufgabe der vorliegenden Erfindung ist es, eine Schutzeinrichtung für eine Verpackungsmaschine, vorzugsweise für eine Schalenverschließmaschine oder eine Tiefziehverpackungsmaschine, und ein Verfahren zum Betrieb einer Verpackungsmaschine zur Verfügung zu stellen, die eine möglichst einfache Konstruktion einer Schutzeinrichtung und eine gute Zugänglichkeit des Bereiches unter der Schutzeinrichtung ermöglicht.The object of the present invention is to provide a protective device for a packaging machine, preferably for a tray sealing machine or a thermoforming packaging machine, and to provide a method of operating a packaging machine which allows the simplest possible construction of a protective device and good accessibility of the area under the protective device.

Diese Aufgabe wird gelöst durch eine Verpackungsmaschine mit einer Schutzeinrichtung mit den Merkmalen des Anspruchs 1 bzw. durch ein Verfahren zum Betrieb einer solchen Verpackungsmaschine mit den Merkmalen des Anspruchs 9. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a packaging machine with a protective device having the features of claim 1 or by a method for operating such a packaging machine with the features of claim 9. Advantageous developments of the invention are specified in the subclaims.

Die erfindungsgemäße Verpackungsmaschine mit einer Schutzeinrichtung, die eine Schutzhaube und einen Rahmen umfasst, zeichnet sich dadurch aus, dass der Rahmen eine Welle mit zwei Rollen und die Schutzhaube Führungen aufweist, wobei die Führungen mit den Rollen derart zusammenwirken, dass die Schutzhaube anhebbar, um die Welle neigbar und verschiebbar ist. Diese konstruktiv einfache und somit kostengünstig herstellbare Schutzeinrichtung führt zu einer sehr guten Zugänglichkeit für den Bediener sowohl seitlich von der Bedienseite der Verpackungsmaschine, als auch von oben. Gleichzeitig bleibt die Schutzhaube mit der Verpackungsmaschine verbunden und kann nicht beschädigt werden.The packaging machine according to the invention with a protective device, which comprises a protective hood and a frame, is characterized in that the frame has a shaft with two rollers and the guard guides, wherein the guides cooperate with the rollers such that the protective cover liftable to the Wave is tiltable and movable. This structurally simple and therefore inexpensive to produce protective device leads to a very good accessibility for the operator both laterally from the operating side of the packaging machine, as well as from above. At the same time, the protective hood remains connected to the packaging machine and can not be damaged.

Bevorzugt ist die Welle drehbar am Rahmen angebracht. Dabei sind die zwei Rollen bevorzugt mittels der Welle zueinander synchronisiert, um eine geradlinige Bewegung der Schutzhaube zu unterstützen.Preferably, the shaft is rotatably mounted on the frame. In this case, the two rollers are preferably synchronized with one another by means of the shaft in order to support a rectilinear movement of the protective hood.

In einer vorteilhaften Ausführung weisen die Rollen eine Lauffläche mit einer derart hohen Friktion auf, dass Gleitreibung entlang der Führungen verhindert wird.In an advantageous embodiment, the rollers on a tread with such a high friction that sliding friction along the guides is prevented.

In einer weiteren bevorzugten Ausführung weisen die Rollen eine Lauffläche mit einer Dämpfung auf, um eine Dämpfungswirkung mit einem Anschlag der Schutzhaube ohne weitere Dämpfungselemente zu ermöglichen.In a further preferred embodiment, the rollers have a running surface with a damping in order to enable a damping effect with a stop of the protective hood without further damping elements.

Dabei sind die Laufflächen der Rollen vorzugsweise aus einem Elastomer hergestellt, um sowohl eine hohe Friktion aufweisen zu können als auch eine dämpfende Wirkung zu erzielen. Beispielsweise kann es sich bei dem Elastomer um Gummi oder Silikon handeln.The running surfaces of the rollers are preferably made of an elastomer in order to be able to have both a high friction and to achieve a damping effect. For example, the elastomer may be rubber or silicone.

Bevorzugt ist ein Mittel zur Überwachung der Arbeitsposition der Schutzhaube vorgesehen, um mittels einer Maschinensteuerung einen Produktionsstart erst freizugeben, wenn sich die Schutzhaube in ihrer Arbeitsposition befindet.Preferably, a means for monitoring the working position of the protective hood is provided in order to release a production start by means of a machine control only when the protective hood is in its working position.

Vorzugsweise ist die Schutzhaube in einer Entnahmeposition schlüssellos von der Schutzeinrichtung abnehmbar, um für besondere Wartungszwecke die Zugänglichkeit auch von der Rückseite der Verpackungsmaschine weiter zu verbessern.Preferably, the guard is in a removal position keylessly removable from the guard to further improve the accessibility of the back of the packaging machine for special maintenance purposes.

Das erfindungsgemäße Verfahren zum Betrieb einer Verpackungsmaschine mit einer Schutzeinrichtung zum Bewegen einer Schutzhaube weist folgende Schritte auf:

  • Anheben und Neigen der Schutzhaube um eine Welle,
  • Verschieben der Schutzhaube entlang Führungen in der Schutzhaube, die auf zwei Rollen der Welle laufen, und
  • Neigen der Schutzhaube um die Welle in eine Endlage.
The inventive method for operating a packaging machine with a protective device for moving a protective hood comprises the following steps:
  • Raising and tilting the protective cover around a shaft,
  • Moving the guard along guides in the guard, which run on two rollers of the shaft, and
  • Tilt the protective cover around the shaft into an end position.

Der Vorteil liegt in einer einfachen Bedienung der Schutzeinrichtung, indem die Schutzhaube angehoben und nach hinten bzw. quer zu einer Produktionsrichtung geschoben werden kann, um den darunter befindlichen Bereich dem Bedienpersonal für Reinigungs- oder Wartungszwecken möglichst großflächig zugänglich zu machen.The advantage lies in a simple operation of the protective device by the protective hood can be raised and pushed backwards or transversely to a production direction to make the area underneath the operator as large as possible accessible for cleaning or maintenance purposes.

Vorzugsweise wirken die Rollen als Dämpfer in der Endlage nach dem Verschieben der Schutzhaube, um Schäden und Geräusche beim Erreichen der Endlage zu vermeiden.Preferably, the rollers act as a damper in the end position after moving the guard, to avoid damage and noise when reaching the end position.

Bevorzugt wird mittels der Welle und den auf der Welle zueinander synchronisierten zwei Rollen ein geradliniges Verschieben der Schutzhaube unterstützt, um für eine solche geradlinige Bewegung keine weiteren Führungseinrichtungen zu benötigen.Preferably, by means of the shaft and the two rollers synchronized with one another on the shaft, a rectilinear displacement of the protective hood is supported in order to require no further guide devices for such a rectilinear movement.

In einer vorteilhaften Ausführung wird die Lage der Schutzhaube in einer Arbeitsposition mittels wenigstens eines Mittels zur Überwachung der Arbeitsposition abgefragt, wobei das Mittel ein Sensor oder ein Schalter sein kann und eine Maschinensteuerung einen Produktionsstart erst freigibt, wenn sich die Schutzhauben in ihrer Arbeitsposition befinden. Das Überwachungsmittel kann berührungslos arbeiten.In an advantageous embodiment, the position of the protective hood is queried in a working position by means of at least one means for monitoring the working position, wherein the means may be a sensor or a switch and a machine control only releases a production start when the protective hoods are in their working position. The monitoring means can operate without contact.

Die Schutzhaube kann bevorzugt in einer Entnahmeposition schlüssellos abgenommen werden.The protective hood can preferably be removed without a key in a removal position.

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

Fig. 1
eine schematische Ansicht einer erfindungsgemäßen Schalenverschließmaschine mit einer Schutzeinrichtung in einer Arbeitsstellung,
Fig. 2
eine schematische Ansicht der Schutzeinrichtung in einer angehobenen Stellung,
Fig. 3
eine schematische Ansicht der Schutzeinrichtung in einer geöffneten Stellung und
Fig.4
eine schematische Ansicht der Schutzeinrichtung mit einer entfernten Schutzhaube.
In the following, an advantageous embodiment of the invention is explained in detail with reference to a drawing. In detail show:
Fig. 1
a schematic view of a tray sealing machine according to the invention with a protective device in a working position,
Fig. 2
a schematic view of the protective device in a raised position,
Fig. 3
a schematic view of the protective device in an open position and
Figure 4
a schematic view of the protective device with a protective hood removed.

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 erfindungsgemäße Schalenverschließmaschine 1 mit einer zwischen einer Abfuhreinrichtung 2 und einer Zuführeinrichtung 3 angeordneten Verschließstation 4. Die Zuführ- und Abfuhreinrichtung 3, 2 umfassen jeweils eine Schutzeinrichtung 5 mit jeweils einer Schutzabdeckung 6, deren Positionierung in einer geschlossenen bzw. Arbeitsposition mittels nicht näher dargestellter Sensoren von einer Maschinensteuerung 7 überwacht werden, damit die Schalenverschließmaschine 1 von einem Bediener nur gestartet werden kann, wenn sich beide Schutzhauben 6 in der Arbeitsposition befinden. In der Arbeitsposition liegen die Schutzhauben 6 auf dem Maschinenrahmen 8 auf und verhindern einen Zugriff in den abgedeckten Bereich. Die Schutzhauben 6 weisen an der Bedienseite 10 der Schalenverschließmaschine 1 einen Griff 9 auf, um eine manuelle Bedienung der Schutzeinrichtung 5 bzw. der Schutzhaube 6 selbst zu ermöglichen. Fig. 1 shows a Schalenverschließmaschine invention 1 with a arranged between a discharge device 2 and a feeder 3 Verschließstation 4. The supply and discharge means 3, 2 each comprise a protective device 5, each with a protective cover 6, their positioning in a closed or working position by means not shown Sensors are monitored by a machine control 7, so that the tray sealing machine 1 can only be started by an operator when both protective hoods 6 are in the working position. In the working position, the protective covers 6 rest on the machine frame 8 and prevent access to the covered area. The protective hoods 6 have a handle 9 on the operating side 10 of the tray closing machine 1 in order to allow manual operation of the protective device 5 or the protective hood 6 itself.

Fig. 2 zeigt die Schalenverschließmaschine 1 mit einer angehobenen Schutzhaube 6 an der Abfuhreinrichtung 2. Die Schutzeinrichtung 5 an der Abfuhreinrichtung 2 umfasst des Weiteren einen Rahmen 11, der sich seitlich, in der Figur links an der Abfuhreinrichtung 2 angeordnet, und entlang der Rückseite der Schalenverschließmaschine 1 erstreckt. Die Schutzeinrichtung 5 sorgt für das Abdecken eines Teilbereichs eines servoangetriebenen Transportbands 12, welches Schalen aus der Verschließstation 4 und der Schalenverschließmaschine 1 abführt. In der Verschließstation 4 werden die Schalen mit einer Deckelfolie verschlossen. Die Schutzhaube 6 wird beim Öffnungsvorgang soweit angehoben, dass die vordere untere Kante 13 der Schutzhaube 6 sich oberhalb der oberen Kante 14 des Rahmens 11 befindet, um im Folgenden ein Verschieben der Schutzhaube 6 nach hinten zu ermöglichen. Der Anhebevorgang erfolgt um eine Welle 15, die in den Figuren 3 und 4 sichtbar dargestellt ist. Fig. 2 shows the tray sealing machine 1 with a raised protective cover 6 at the discharge device 2. The protective device 5 at the discharge device 2 comprises the Further, a frame 11, which is arranged on the side of the discharge device 2 on the left in the figure, and extends along the rear side of the tray closing machine 1. The protective device 5 covers a portion of a servo-driven conveyor belt 12 which discharges trays from the capping station 4 and the tray closing machine 1. In the closing station 4, the trays are closed with a cover film. The protective cover 6 is lifted during the opening process to the extent that the front lower edge 13 of the protective cover 6 is located above the upper edge 14 of the frame 11 in order subsequently to enable a displacement of the protective cover 6 to the rear. The lifting operation takes place about a shaft 15, which in the Figures 3 and 4 is shown visible.

Die Fig. 3 zeigt die Schalenverschließmaschine 1 mit der Schutzhaube 6, die nach hinten in die geöffnete Position geschoben wurde. Die Schutzhaube 6 umgreift mit Führungen 16, die mittels Blechabkantungen in einer seitlich orientierten L- oder U-Form (wie gezeigt) ausgeführt sind, Rollen 17, die in Figur 4 näher gezeigt sind. Die Rollen 17 sind selbst mit der Welle 15 an deren Wellenenden verbunden und die Welle 15 ist über zwei Halter 18 am Rahmen 11 der Schutzeinrichtung 5 angebracht. Da die Rollen 17 eine gummierte Lauffläche mit hoher Friktion aufweisen, wird die Schiebebewegung der Schutzhaube 6 derart synchronisiert, dass die Schutzhaube 6 eine nach hinten ausgerichtete geradlinige Bewegung ausführt, und dabei laufen die Führungen 16 auf den Rollen 17. Während dieser Bewegung neigt sich die Schutzhaube 6 kontinuierlich aufgrund der tiefer als die Rahmenoberkante 14 angeordneten Welle 15 bzw. Rollen 17 nach unten. In der in Fig. 3 gezeigten Stellung befindet sich die Schutzhaube 6 mit zwei in den Führungen 16 vorgesehenen Anschlägen 19, die in Fig. 4 zu gezeigt sind, an den Rollen 17, die aufgrund ihrer gummierten Lauffläche zusätzlich als Dämpfer wirken. Die Halter 18 umfassen jeweils noch eine weitere Gummi- oder Kunststoffrolle 20, die als Anlage für die Schutzhaube 6 in der geöffneten Stellung dient und die Neigung der Schutzhaube 6 somit begrenzt. Die Lage der Schutzhaube 6 in der geöffneten Position wird somit über die Rollen 17 und die Rollen 20 definiert und wird auch als Endlage bezeichnet. Die Rollen 20 müssen nicht drehbar an den Haltern 18 angebracht sein.The Fig. 3 shows the tray sealing machine 1 with the protective cover 6, which has been pushed to the rear in the open position. The protective cover 6 surrounds with guides 16, which are executed by means of Blechabkantungen in a laterally oriented L or U-shape (as shown), rollers 17 which in FIG. 4 are shown in more detail. The rollers 17 are themselves connected to the shaft 15 at the shaft ends and the shaft 15 is mounted on two holders 18 on the frame 11 of the protection device 5. Since the rollers 17 have a rubberized tread with high friction, the sliding movement of the protective cover 6 is synchronized such that the protective hood 6 performs a rearwardly directed rectilinear motion, and thereby run the guides 16 on the rollers 17. During this movement tilts Guard 6 continuously due to the lower than the frame top edge 14 arranged shaft 15 and rollers 17 down. In the in Fig. 3 shown position is the protective cover 6 with two provided in the guides 16 stops 19, which in Fig. 4 are shown on the rollers 17, which also act as a damper due to their rubberized tread. The holder 18 each include a further rubber or plastic roller 20, which serves as a plant for the protective cover 6 in the open position and thus limits the inclination of the protective cover 6. The position of the protective hood 6 in the open position is thus defined by the rollers 17 and the rollers 20 and is also referred to as the end position. The rollers 20 need not be rotatably mounted on the holders 18.

Fig. 4 zeigt die Schalenverschließmaschine 1 mit einer von der Schutzeinrichtung 5 abgenommen Schutzhaube 6. In dieser Ansicht sind die beiden innenliegenden Führungen 16 und jeweils eine Aussparung 21 der Schutzhaube 6 gezeigt. Um die Schutzhaube 6 von den Rollen 17 abnehmen zu können, wird die Schutzhaube 6 in eine Entnahmeposition angehoben, so dass sich die Rollen 17 im Bereich der Aussparung 21 befinden, und die Rollen 17 aus den Führungen 16 heraus gelangen können. Zusammenfassend kann festgestellt werden, dass die Öffnungs- und auch die Schließbewegung der Schutzhaube 6 lediglich durch die Anordnung und Zusammenwirkung der Welle 15 zusammen mit den zwei Rollen 17 am Rahmen 11 der Schutzeinrichtung 5 und den Führungen 16 mit den Anschlägen 19 der Schutzhaube 6 definiert wird. Fig. 4 shows the Schalenverschließmaschine 1 with a detached from the guard 5 protective cover 6. In this view, the two inner guides 16 and a respective recess 21 of the protective hood 6 are shown. To the protective hood 6 of To remove the rollers 17, the protective cover 6 is raised to a removal position, so that the rollers 17 are in the region of the recess 21, and the rollers 17 can get out of the guides 16 out. In summary, it can be stated that the opening and also the closing movement of the guard 6 is defined only by the arrangement and interaction of the shaft 15 together with the two rollers 17 on the frame 11 of the guard 5 and the guides 16 with the stops 19 of the guard 6 ,

Die Erfindung ist nicht auf eine Schalenverschließmaschine 1 beschränkt, sondern erstreckt sich auch auf eine Tiefziehverpackungsmaschine sowie auf Transporteinrichtungen, die Produkte zuführen und Verpackungen abführen und mit der Verpackungsmaschine zusammen eine Verpackungsanlage bilden. Alle diese Vorrichtungen können eine Schutzeinrichtung 5 in einer der hier geschilderten Varianten aufweisen.The invention is not limited to a tray closing machine 1, but also extends to a thermoforming packaging machine as well as to transport devices which feed products and discharge packages and together with the packaging machine form a packaging system. All of these devices can have a protective device 5 in one of the variants described here.

Die Erfindung umfasst auch eine äquivalente Ausführung, bei der statt der Welle 15 mit den zwei Rollen 17 Gleitelemente vorgesehen sind, die in gleicher Weise mit der Schutzhaube zusammenwirken.The invention also includes an equivalent embodiment, in which instead of the shaft 15 with the two rollers 17 sliding elements are provided which cooperate in the same way with the protective hood.

Bei dem in den Figuren dargestellten Ausführungsbeispiel ist der Rahmen 11 in Produktionsrichtung der Verpackungsmaschine 1 kürzer als die Schutzhaube 6. Dies führt dazu, dass die vordere untere Kante 13 der Schutzhaube 6 auch bei einem unbeabsichtigten Absenken der Schutzhaube 6 auf der oberen Kante 14 des Rahmens 11 ruht (siehe Figur 2), sobald die Schutzhaube 6 um eine kurze Distanz nach hinten geschoben ist. Auf diese Weise wird die Betriebssicherheit der Verpackungsmaschine 1 verbessert, weil durch den Kontakt zwischen den Kanten 13, 14 verhindert wird, dass die Kante 13 der Schutzhaube 6 beispielsweise mit dem Transportband 2 oder darauf befindlichen Schalen in Kontakt kommt.In the embodiment shown in the figures, the frame 11 in the production direction of the packaging machine 1 is shorter than the protective cover 6. This causes the front lower edge 13 of the protective cover 6 even with an unintentional lowering of the protective cover 6 on the upper edge 14 of the frame 11 rests (see FIG. 2 ), as soon as the protective cover 6 is pushed backwards by a short distance. In this way, the reliability of the packaging machine 1 is improved because it is prevented by the contact between the edges 13, 14, that the edge 13 of the protective cover 6 comes into contact, for example, with the conveyor belt 2 or trays thereon.

Claims (13)

  1. Packaging machine (1) with a protective device (5) comprising a protective hood (6) and a frame (11), characterized in that the frame (11) comprises a shaft (15) with two rolls (17) and the protective hood (6) comprises guides (16), the guides (16) cooperating with the rolls (17) in such a manner that the protective hood (6) is liftable, tiltable around the shaft (15) and displaceable.
  2. Packaging machine according to claim 1, characterized in that the shaft (15) is rotatably mounted on the frame (11).
  3. Packaging machine according to claim 2, characterized in that the two rolls (17) are synchronized with each other by means of the shaft (15).
  4. Packaging machine according to any one of the preceding claims, characterized in that the rolls (17) have a running surface with friction.
  5. Packaging machine according to any one of the preceding claims, characterized in that the rolls (17) have a running surface with damping.
  6. Packaging machine according to any one of the preceding claims, characterized in that the running surfaces of the rolls (17) are made from an elastomer.
  7. Packaging machine according to any one of the preceding claims, characterized in that a monitoring device is provided for monitoring the work position of the protective hood (6).
  8. Packaging machine according to any one of the preceding claims, characterized in that the protective hood (6) is removable in a removal position in a keyless manner from the protective device (5).
  9. A method for operating a packaging machine (1) with a protective device (5) for moving a protective hood (6), the method comprising the following steps:
    - lifting and tilting the protective hood (6) around a shaft (15),
    - shifting the protective hood (6) along guides (16) in the protective hood (6), the guides running on two rolls (17) of the shaft (15), and
    - tilting the protective hood (6) around the shaft (15) into an end position.
  10. Method according to claim 9, characterized in that the rolls (17) act as dampers in the end position after shifting of the protective hood (6).
  11. Method according to any one of claims 9 or 10, characterized in that a straight shifting of the protective hood (6) is supported by means of the shaft (15) and the two rolls (17) synchronized with each other on the shaft (15).
  12. Method according to any one of claims 9 to 11, characterized in that the position of the protective hood (6) in a work position is checked by means of at least one monitoring device for monitoring the work position.
  13. Method according to any one of claims 9 to 12, characterized in that the protective hood (6) can be removed in a removal position in a keyless manner.
EP12008645.9A 2012-12-28 2012-12-28 Packaging machine with a protective device and method Active EP2749499B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12008645.9A EP2749499B1 (en) 2012-12-28 2012-12-28 Packaging machine with a protective device and method
ES12008645.9T ES2540998T3 (en) 2012-12-28 2012-12-28 Packaging machine with a protection device and procedure
US14/137,467 US10118784B2 (en) 2012-12-28 2013-12-20 Packaging machine with a protective device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12008645.9A EP2749499B1 (en) 2012-12-28 2012-12-28 Packaging machine with a protective device and method

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EP2749499A1 EP2749499A1 (en) 2014-07-02
EP2749499B1 true EP2749499B1 (en) 2015-06-10

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DE102016214417A1 (en) 2016-08-04 2018-02-08 Multivac Sepp Haggenmüller Se & Co. Kg Packaging machine with protective cover holding device
DE102017106898B4 (en) 2017-03-30 2023-03-02 Multivac Sepp Haggenmüller Se & Co. Kg Packaging machine with stackable protective covers
DE102017126615A1 (en) * 2017-11-13 2019-05-16 Multivac Sepp Haggenmüller Se & Co. Kg Packaging machine with protective cover thereon arranged Tokenbefestigungskapsel and method
DE102017128363A1 (en) 2017-11-30 2019-06-06 Multivac Sepp Haggenmüller Se & Co. Kg PACKAGING MACHINE WITH FOLDABLE GUARD COVER
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Publication number Publication date
US10118784B2 (en) 2018-11-06
US20140182246A1 (en) 2014-07-03
EP2749499A1 (en) 2014-07-02
ES2540998T3 (en) 2015-07-15

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