EP1714886B1 - Packaging machine - Google Patents
Packaging machine Download PDFInfo
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- EP1714886B1 EP1714886B1 EP06007813A EP06007813A EP1714886B1 EP 1714886 B1 EP1714886 B1 EP 1714886B1 EP 06007813 A EP06007813 A EP 06007813A EP 06007813 A EP06007813 A EP 06007813A EP 1714886 B1 EP1714886 B1 EP 1714886B1
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- unit
- laser
- packaging machine
- machine according
- cutting
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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
- 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
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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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
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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
- B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
- B65B59/003—Arrangements to enable adjustments related to the packaging material
Definitions
- the invention relates to a packaging machine for the production of packages by packaging of packaged goods in packaging according to the preamble of claim 1.
- Such commercial packaging machines are available with different processing stations, e.g. Sealing stations, for sealing packages filled with packaged goods, cutting stations, etc. provided.
- packaging machines for example those which seal individual individual packagings filled with packaged goods (so-called tray sealers), and packaging machines in which a plurality of packs are manufactured, filled and sealed in a coherent manner.
- the latter types of packaging machines are often referred to as so-called thermoforming machines.
- the packagings produced in one piece can be provided in individual rows and / or columns or tracks.
- the cutting station is located in the exit region of this packaging machine and usually comprises two blade units, one in the longitudinal direction of the individual columns or tracks and possibly also separates outer edge strips, while a blade unit in the transverse direction, the individual rows cut.
- These cutting units are adapted in the known construction to a specific format of the packages and to the arrangement of the contiguously produced packages. In the case of format changes, at least part of the cutting units must be replaced in a changeover process. Rounded cuts or the like can be achieved with such cutting units only with correspondingly elaborate cutting tools.
- a device for format variable cutting of packaging material which comprises a hydro-cutting head with high-pressure water jet nozzle, which corresponds to the preamble of claim 1.
- the object of the invention is therefore to propose a packaging machine in which these disadvantages are at least partially eliminated and less effort to retrofit when changing the package format is required.
- a packaging machine is characterized in that a variable format laser cutting unit is provided with a laser tool, wherein a control unit of the laser cutting unit is present, which includes a data memory in which data and / or program packages for individual predetermined package formats are stored.
- a control unit of the laser cutting unit is present, which includes a data memory in which data and / or program packages for individual predetermined package formats are stored.
- variable-format laser cutting unit eliminates the need to purchase elaborate, complete-cut tools that are specially designed for each pack shape. This requires a considerable cost savings.
- a control unit is provided, which is provided with a data memory in which the cutting data for different package formats are stored as data and / or program modules.
- a special program is converted into a specific cutting path for the laser beam with a uniform program, in another embodiment, this cutting path is deposited directly as an individual program module.
- Other types of Formathinterlegung invention are advantageous because with this embodiment of the invention, the format change is conceivable simply by calling the new format, for example, by clicking on a packaging format selectable.
- Such a control unit can be integrated into the machine control or else executed separately.
- the individual package formats are thus stored as format modules in the data store and retrievable by an operator.
- a particular embodiment of the invention comprises a laser beam which can be positioned by means of a controllable positioning unit.
- different formats of the same cutting unit through. Modification of the operating mode can be established.
- a freely programmable positioning unit is preferably used for the laser beam, so that changes in the type of format can be achieved by a mere software conversion.
- both the number of cuts to be performed as well as their location and contour can be chosen almost freely and thus customized packages of different shape can be produced.
- the cutting process can take place during the movement of the packages to be cut.
- the feed rate of the package must be considered.
- intermittent cutting takes place, with the packages to be cut resting during the cutting process.
- This embodiment has the advantage that the laser cutting tool (s) has to carry out lower accelerations and speeds, since cutting operations in the direction of the feed rates of the packs when the packs are stationary can not occur.
- it is also easier to cut with a laser cutting tool several adjacent packages, since the laser cutting tool must follow any feed rate. At standstill of the packs also a trouble-free all-round cutting of a single cutting tool to an overall contour of a single pack is possible.
- the coordination of a plurality of laser cutting tools for a cut joint to be cut out together is dispensed with in this embodiment.
- Such a positioning unit may be provided, for example, by means of linear adjustment units, e.g. be realized in an xy coordinate arrangement.
- linear adjustment units e.g. be realized in an xy coordinate arrangement.
- all types of robotic systems for example, gantry robot or Einarmroboter, etc. can be used.
- Essential is the freely selectable positioning of the intended laser cutting tool in the area of the packages to be processed.
- a laser beam can be adjusted over deflection or guide elements in a large area with respect to his work.
- the depth of cut can be varied with a laser.
- a laser it is also possible with a laser not to completely separate the individual packages, but to install predetermined breaking points by a thin residual amount of material remains.
- Such a packing with predetermined breaking points can be provided by a perforation along the desired contour.
- multiple packs can be produced, which can be sold together.
- Such multiple packs are known for example in various food packaging such as yogurt cups or the like.
- the consumer buys a multi-pack, from which he can cut off the individual package by kinking and breaking away.
- multi-chamber packages containing various components may be connected by means of such predetermined breaking points, so that a chamber relative to the other chamber is pivotable or completely separable.
- the perforation of a hinged lid can ultimately be realized, which may be important, for example, in resealable packaging.
- the material can even be weakened in such a way that a so-called film hinge can be realized between two packs or pack parts, over which these packs or pack parts can be permanently or at least repeatedly pivoted against one another.
- a suction unit is provided in order to suck off evaporating material and thus to prevent contamination of the atmosphere in the region of the cutting unit
- a cooling unit can also be advantageously used in this area in order, on the one hand, to limit the extent of such evaporation and to prevent evaporated material from spreading by condensation.
- an additional perforation unit is provided for perforating the lidding film prior to connection to the packages to be closed.
- the perforation can easily with too.
- a perforation unit with respect to the function and the structure may have similarities, resulting in such embodiments, the possibilities of additional benefits.
- a variable-format laser cutting unit according to the invention is provided in combination with such a work unit, so depending on the embodiment, at least partially the same components, eg the same control can be used, resulting in a significant reduction of the effort.
- a common laser can be used for two processing units. The positioning units for both laser tools can be selected identically, which reduces the cost of acquisition and operation.
- the operation of the respective laser tool (s) and laser cutting tool (s) via common components can be either alternating clockwise or parallel.
- the beam path can be divided so that at least one laser beam from the same laser is available for the cutting unit and for the further working unit.
- thermoforming machines could also allow the use of a correspondingly smaller dimensioned base component, such as a weaker laser with appropriate alternating operation of the laser cutting unit and additional working unit.
- the single FIGURE shows a schematic perspective view of a packaging machine according to the invention.
- the packaging machine 1 represents a so-called thermoforming machine, which pulls off a film roll 2, the so-called lower web or trough film 3.
- the trough film 3 is formed in a mold 4 under heat and optionally also pressure to packing troughs 5.
- the packing troughs 5 are filled manually or automatically with packaged goods 7 in a filling section 6.
- a cover sheet 8 is withdrawn from a supply roll 9 and placed as a lid on the packing wells 5.
- the cover sheet B is connected to the packing trough 5 and sealed.
- a laser cutting unit 11 individual packs produced in the previous production process are separated into individual packs and the edge of the packs is cut to length in the longitudinal direction. According to the invention, this laser cutting unit 11 is now executed variable in format. The exact execution is not shown in the drawing. In this case, the embodiments proposed with reference to the introduction to the description and the claims can be used.
- the lid film 8 is passed through a perforation unit 12.
- the cover sheet B is provided in a manner not shown, for example, with a certain number and distribution of perforations in the order of 20 to 50 ⁇ .
- Such a perforated lidding film is capable of allowing any carbon dioxide and ethylene produced in the closed packings to pass to the outside environment and at the same time to ensure an oxygen feed into the interior of the pack. This results in particular in the packaging of vegetable foods such as vegetables, lettuce, fruit or the like improved durability. Especially in the packaging of asparagus, such a lidding film has proven to be advantageous.
- the cutting unit 11 comprises a laser, not shown, which is housed in a laser station 13. Via two light guides 14, 15, both the cutting unit 11 and the perforation unit 15 are supplied with the necessary laser energy.
- the corresponding optical switching elements are not shown in detail.
- the associated tools cutting tools, perforation tools
- positioning units drawn. These components can be configured analogously to commercially available laser cutting devices and provided with appropriate controls, in particular programmable controllers.
Abstract
Description
Die Erfindung betrifft eine Verpackungsmaschine zur Herstellung von Packungen durch Verpacken von Packgut in Verpackungen nach dem Oberbegriff des Anspruchs 1.The invention relates to a packaging machine for the production of packages by packaging of packaged goods in packaging according to the preamble of claim 1.
Derartige handelsübliche Verpackungsmaschinen sind mit unterschiedlichen Bearbeitungsstationen, z.B. Versiegelungsstationen, zum Versiegeln von mit Packgut gefüllten Verpackungen, Schneidstationen usw, versehen.Such commercial packaging machines are available with different processing stations, e.g. Sealing stations, for sealing packages filled with packaged goods, cutting stations, etc. provided.
Dabei wird zwischen mehreren Arten von Verpackungsmaschinen unterschieden, z.B. solchen, die von einander getrennte einzelne, mit Packgut gefüllte Verpackungen versiegeln (sogenannte Traysealer), und Verpackungsmaschinen bei denen eine Mehrzahl von Packungen zusammenhängend hergestellt, gefüllt und versiegelt wird. Die letztgenannten Arten von Verpackungsmaschinen werden häufig als sogenannten Tiefziehmaschinen bezeichnet. Die zusammenhängend am Stück hergestellten Verpackungen können dabei in einzelnen Reihen und/oder Spalten bzw. Spuren bereitgestellt werden. Die Schneidstation befindet sich im Ausgangsbereich dieser Verpackungsmaschine und umfasst in der Regel zwei Messereinheiten, eine die in Längsrichtung die einzelnen Spalten oder Spuren und gegebenenfalls auch äußere Randstreifen trennt, während eine Messereinheit in Querrichtung die einzelnen Reihen ausschneidet.In this case, a distinction is made between several types of packaging machines, for example those which seal individual individual packagings filled with packaged goods (so-called tray sealers), and packaging machines in which a plurality of packs are manufactured, filled and sealed in a coherent manner. The latter types of packaging machines are often referred to as so-called thermoforming machines. The packagings produced in one piece can be provided in individual rows and / or columns or tracks. The cutting station is located in the exit region of this packaging machine and usually comprises two blade units, one in the longitudinal direction of the individual columns or tracks and possibly also separates outer edge strips, while a blade unit in the transverse direction, the individual rows cut.
Diese Schneideinheiten sind in der bekannten Bauweise an ein bestimmtes Format der Packungen und an die Anordnung der zusammenhängend hergestellten Packungen angepasst. Bei Formatänderungen muss wenigstens ein Teil der Schneideinheiten in einem Umrüstvorgang ausgetauscht werden. Abgerundete Schnitte oder dergleichen sind mit solchen Schneideinheiten nur mit entsprechend aufwändigen Schneidwerkzeugen zu erzielen.These cutting units are adapted in the known construction to a specific format of the packages and to the arrangement of the contiguously produced packages. In the case of format changes, at least part of the cutting units must be replaced in a changeover process. Rounded cuts or the like can be achieved with such cutting units only with correspondingly elaborate cutting tools.
Des Weiteren ist aus der Druckschrift
Für besondere Packungsformen sind weiterhin sogenannte Komplettschnittwerkzeuge , d.h. Stempel und Matrizenwerkzeuge, im Einsatz, die eigens für jede Packungsform äußerst aufwendig hergestellt werden müssen, damit die Packungen mit dem gewünschten Schnittbild einwandfrei beschnitten werden. Derartige Komplettschnittwerkzeuge sind sehr kostenträchtig und müssen zudem aufgrund ihrer speziellen Ausprägung für eine einzelne Packungsform bei jeder Packungsänderung beschafft werden. Darüber hinaus bedingt der Wechsel dieser Komplettschnittwerkzeuge beim Wechseln der Packungsform auch einen entsprechenden Aufwand im Betrieb.For special types of packs, so-called complete cut tools, i. Stamps and die tools, in use, which have to be produced in a particularly complex manner, especially for each pack form, so that the packs are perfectly trimmed with the desired cut pattern. Such complete cutting tools are very costly and must also be procured due to their specific nature for a single package form with each package change. In addition, the change of these complete cutting tools when changing the package also requires a corresponding effort in operation.
Aufgabe der Erfindung ist es daher, eine Verpackungsmaschine vorzuschlagen, bei der diese Nachteile zumindest teilweise entfallen und weniger Aufwand zur Umrüstung bei Änderung des Packungsformates erforderlich ist.The object of the invention is therefore to propose a packaging machine in which these disadvantages are at least partially eliminated and less effort to retrofit when changing the package format is required.
Diese Aufgabe wird ausgehend von einer Verpackungsmaschine gemäß dem Oberbegriff des Anspruchs 1 durch dessen kennzeichnende Merkmale sowie durch das Verfahren gemäß Anspruch 12 erreicht.This object is achieved on the basis of a packaging machine according to the preamble of claim 1 by its characterizing features and by the method according to
Durch die in den Unteransprüchen genannten Maßnahmen sind vorteilhafte Ausführungen und Weiterbildungen der Erfindung möglich.The measures mentioned in the dependent claims are advantageous embodiments and refinements of the invention possible.
Dementsprechend zeichnet sich eine erfindungsgemäße Verpackungsmaschine dadurch aus, dass eine formatvariable Laser-schneideinheit mit einem Laserwerkzeug vorgesehen ist, wobei eine Steuereinheit der Laser-Schneideinheit vorhanden ist, die einen Datenspeicher umfasst, in dem Daten und/oder Programmpakete für einzelne vorgegebene Packungsformate hinterlegt sind. Bei einer formatvariablen Laser-Schneideinheit entfällt die bisherige aufwändige Umrüstung bei Änderung des Packungsformates der mit der Verpackungsmaschine herzustellenden Packungen.Accordingly, a packaging machine according to the invention is characterized in that a variable format laser cutting unit is provided with a laser tool, wherein a control unit of the laser cutting unit is present, which includes a data memory in which data and / or program packages for individual predetermined package formats are stored. In the case of a format-variable laser cutting unit, the hitherto complex conversion of a change in the package format of the packs to be produced by the packaging machine is eliminated.
Darüber hinaus kann mit einer formatvariablen Laser-Schneideinheit die Beschaffung aufwändiger Komplettschnittwerkzeuge, die speziell für jede Packungsform anzufertigen sind, entfallen. Dies bedingt eine erhebliche Kosteneinsparung.In addition, the use of a variable-format laser cutting unit eliminates the need to purchase elaborate, complete-cut tools that are specially designed for each pack shape. This requires a considerable cost savings.
Es wird eine Steuereinheit vorgesehen, die mit einem Datenspeicher versehen wird, in dem die Schnittdaten für unterschiedliche Packungsformate als Daten und/oder Programmmodule hinterlegt sind. In einer Ausführungsform wird mit einem einheitlichen Programm jeweils ein spezieller Datensatz in einen speziellen Schnittweg für den Laserstrahl umgewandelt, in einer anderen Ausführungsform wird dieser Schnittweg unmittelbar als individuelles Programmmodul hinterlegt. Auch andere Arten der Formathinterlegung sind erfindungsgemäß von Vorteil, da mit dieser Ausgestaltung der Erfindung der Formatwechsel denkbar einfach durch Aufruf des neuen Format, beispielsweise durch ein Anklicken einer Verpackungsformatangabe auswählbar ist. Eine derartige Steuereinheit kann dabei in die Maschinensteuerung integriert oder aber separat ausgeführt werden. Die einzelnen Packungsformate sind somit als Formatmodule in dem Datenspeicher hinterlegt und durch eine Bedienperson abrufbar.A control unit is provided, which is provided with a data memory in which the cutting data for different package formats are stored as data and / or program modules. In one embodiment, a special program is converted into a specific cutting path for the laser beam with a uniform program, in another embodiment, this cutting path is deposited directly as an individual program module. Other types of Formathinterlegung invention are advantageous because with this embodiment of the invention, the format change is conceivable simply by calling the new format, for example, by clicking on a packaging format selectable. Such a control unit can be integrated into the machine control or else executed separately. The individual package formats are thus stored as format modules in the data store and retrievable by an operator.
Insbesondere empfiehlt es sich dabei, ein hinsichtlich seines Arbeitsortes verstellbares oder ein insgesamt frei positionierbares Laser-Schneidwerkzeug mit einer entsprechenden Positioniereinheit vorzusehen.In particular, it is recommended that one with regard to his Workplace adjustable or to provide a total freely positionable laser cutting tool with a corresponding positioning.
Eine besondere Ausführungsform der Erfindung umfasst einen Laserstrahl, der mittels einer steuerbaren Positioniereinheit positionierbar ist. In dieser Ausführungsform können unterschiedliche Formate von der gleichen Schneideinheit durch. Änderung des Betriebsmodus hergestellt werden. Bevorzugt wird hierbei eine frei programmierbare Positioniereinheit für den Laserstrahl verwendet, so dass Änderungen in der Art des Formats durch eine reine Softwareumstellung zu erreichen sind. Dabei können sowohl die Anzahl der durchzuführenden Schnitte sowie deren Ort und Kontur nahezu frei gewählt und so bedarfsgerechte Packungen unterschiedlicher Form hergestellt werden.A particular embodiment of the invention comprises a laser beam which can be positioned by means of a controllable positioning unit. In this embodiment, different formats of the same cutting unit through. Modification of the operating mode can be established. In this case, a freely programmable positioning unit is preferably used for the laser beam, so that changes in the type of format can be achieved by a mere software conversion. In this case, both the number of cuts to be performed as well as their location and contour can be chosen almost freely and thus customized packages of different shape can be produced.
Der Schneidvorgang kann dabei während der Bewegung der zu schneidenden Packungen stattfinden. In diesem Fall ist bei der Ansteuerung des Laser-Schneidwerkzeugs oder der Laser-Schneidwerkzeuge die Vorschubgeschwindigkeit der Packung zu berücksichtigen. In einer anderen Ausführungsform wird taktweise geschnitten, wobei die zu schneidenden Packungen während des Schneidvorgangs stillstehen. Diese Ausführungsform hat den Vorteil, dass das oder die Laser-Schneidwerkzeuge geringere Beschleunigungen und Geschwindigkeiten ausführen müssen, da Schneidvorgänge in Richtung der Vorschubgeschwindigkeiten der Packungen beim Stillstand der Packungen nicht vorkommen können. Bei einem Taktbetrieb ist es darüber hinaus leichter möglich, mit einem Laser-Schneidwerkzeug mehrere nebeneinanderliegende Packungen zu schneiden, da das Laser-Schneidwerkzeug keiner Vorschubgeschwindigkeit folgen muss. Beim Stillstand der Packungen ist außerdem ein problemloser Rundumschnitt eines einzelnen Schneidwerkzeugs um eine Gesamtkontur einer einzelnen Packung möglich. Die Koordination mehrerer Laser-Schneidwerkzeuge für eine gemeinsam auszuschneidende Schnittkontur entfällt in dieser Ausführungsform.The cutting process can take place during the movement of the packages to be cut. In this case, when driving the laser cutting tool or the laser cutting tools, the feed rate of the package must be considered. In another embodiment, intermittent cutting takes place, with the packages to be cut resting during the cutting process. This embodiment has the advantage that the laser cutting tool (s) has to carry out lower accelerations and speeds, since cutting operations in the direction of the feed rates of the packs when the packs are stationary can not occur. In a clock mode, it is also easier to cut with a laser cutting tool several adjacent packages, since the laser cutting tool must follow any feed rate. At standstill of the packs also a trouble-free all-round cutting of a single cutting tool to an overall contour of a single pack is possible. The coordination of a plurality of laser cutting tools for a cut joint to be cut out together is dispensed with in this embodiment.
Eine solche Positioniereinheit kann beispielsweise mittels Linearverstelleinheiten, z.B. in einer xy-Koordinatenanordnung realisiert werden. Für diese Anwendung könne jedoch auch alle Arten von Robotersystemen, beispielsweise auch Portalroboter oder Einarmroboter, usw. Verwendung finden. Wesentlich ist die frei wählbare Positionierung des vorgesehenen Laser-Schneidwerkzeuges im Bereich der zu bearbeitenden Packungen.Such a positioning unit may be provided, for example, by means of linear adjustment units, e.g. be realized in an xy coordinate arrangement. For this application, however, all types of robotic systems, for example, gantry robot or Einarmroboter, etc. can be used. Essential is the freely selectable positioning of the intended laser cutting tool in the area of the packages to be processed.
Die Verwendung eines oder mehrerer Laser bietet besondere Vorteile im Hinblick auf die Variabilität der anzubringenden Schnitte. Ein Laserstrahl kann über Ablenk- oder Leitelemente in einem großen Bereich hinsichtlich seines Arbeitsortes verstellt werden.The use of one or more lasers offers particular advantages with regard to the variability of the cuts to be made. A laser beam can be adjusted over deflection or guide elements in a large area with respect to his work.
Darüber hinaus kann mit einem Laser die Schnitttiefe variiert werden. Insofern ist es mit einem Laser auch möglich, die einzelnen Packungen nicht vollständig zu trennen, sondern Sollbruchstellen anzubringen, indem eine dünne Restmenge von Material verbleibt.In addition, the depth of cut can be varied with a laser. In this respect, it is also possible with a laser not to completely separate the individual packages, but to install predetermined breaking points by a thin residual amount of material remains.
Eine solche Packungsart mit Sollbruchstellen kann durch eine Perforation entlang der gewünschten Kontur vorgesehen werden.Such a packing with predetermined breaking points can be provided by a perforation along the desired contour.
Mittels derartigen Sollbruchstellen können Mehrfachpackungen hergestellt werden, die zusammenhängend vertrieben werden können. Derartige Mehrfachpackungen sind beispielsweise bei verschiedenen Lebensmittelverpackungen wie Joghurtbechern oder dergleichen bekannt. Der Verbraucher kauft dabei eine Mehrfachpackung, von der er sich durch Abknicken und Wegbrechen die Einzelpackung abtrennen kann.By means of such predetermined breaking points, multiple packs can be produced, which can be sold together. Such multiple packs are known for example in various food packaging such as yogurt cups or the like. The consumer buys a multi-pack, from which he can cut off the individual package by kinking and breaking away.
Auch Mehrkammerpackungen, die verschiedene Komponenten enthalten, können mittels derartiger Sollbruchstellen verbunden sein, so dass eine Kammer gegenüber der anderen Kammer verschwenkbar oder ganz abtrennbar ist.Also multi-chamber packages containing various components may be connected by means of such predetermined breaking points, so that a chamber relative to the other chamber is pivotable or completely separable.
Durch Materialschwächung oder Perforation lässt sich letzten Endes auch die Perforation eines Klappdeckels realisieren, was beispielsweise bei wiederverschließbaren Verpackungen von Bedeutung sein kann. Mit Hilfe eines Lasers lässt sich das Material sogar derart abschwächen, dass ein sogenanntes Filmscharnier zwischen zwei Packungen oder Packungsteilen realisierbar ist, über das diese Packungen oder Packungsteile gegeneinander dauerhaft oder zumindest mehrfach verschwenkbar sind.By material weakening or perforation, the perforation of a hinged lid can ultimately be realized, which may be important, for example, in resealable packaging. With the aid of a laser, the material can even be weakened in such a way that a so-called film hinge can be realized between two packs or pack parts, over which these packs or pack parts can be permanently or at least repeatedly pivoted against one another.
Darüber hinaus kann mit einem Laser auch eine Codierung der Packungen vorgenommen werden. Denkbar wäre beispielsweise bei Verwendung eines entsprechenden Kunststoffs, so dass ein entsprechender Farbcode durch Einbrennen mit dem Laser erzeugt wird.In addition, with a laser also a coding of the packs can be made. It would be conceivable, for example, when using a corresponding plastic, so that a corresponding color code is generated by baking with the laser.
In einer bestimmten Ausführungsform der Erfindung wird daher eine Absaugeinheit vorgesehen, um abdampfendes Material abzusaugen und somit eine Kontamination der Atmosphäre im Bereich der Schneideinheit zu verhindernIn a specific embodiment of the invention, therefore, a suction unit is provided in order to suck off evaporating material and thus to prevent contamination of the atmosphere in the region of the cutting unit
Auch eine Kühleinheit kann in diesem Bereich vorteilhaft eingesetzt werden, um zum einen das Ausmaß derartiger Verdampfung zu begrenzen und verdampftes Material durch Kondensation an der Ausbreitung zu hindern.A cooling unit can also be advantageously used in this area in order, on the one hand, to limit the extent of such evaporation and to prevent evaporated material from spreading by condensation.
Grundsätzlich ist es weiterhin möglich, die oben genannten Funktionsprinzipien für einen Laser auch bei anderen Arbeitseinheiten der Verpackungsmaschine zu verwenden. So kann z.B. eine zusätzliche Perforationseinheit zum Perforieren der Deckelfolie vor der Verbindung mit den zu schließenden Verpackungen vorgesehen werden. Die Perforation kann ohne weiteres auch mit.In principle, it is also possible to use the abovementioned functional principles for a laser also in other working units of the packaging machine. Thus, e.g. an additional perforation unit is provided for perforating the lidding film prior to connection to the packages to be closed. The perforation can easily with too.
Sofern die Schneideinheit als auch andere Arbeitseinheiten, wie z.B. eine Perforationseinheit hinsichtlich der Funktion und dem Aufbau Ähnlichkeiten aufweisen können, ergeben sich bei solchen Ausführungsformen die Möglichkeiten zusätzlicher Vorteile. Sofern nun eine erfindungsgemäße formatvariable Laser-Schneideinheit in Kombination mit einer solchen Arbeitseinheit vorgesehen wird, so können je nach Ausführungsform zumindest teilweise die gleichen Komponenten, z.B. die gleiche Steuerung verwendet werden, wodurch sich eine deutliche Reduzierung des Aufwands ergibt. So kann beispielsweise ein gemeinsamer Laser für zwei Bearbeitungseinheiten verwendet werden. Die Positioniereinheiten für beide Laser-Werkzeuge können identisch ausgewählt werden, wodurch sich der Aufwand in der Anschaffung und im Betrieb vermindert.Unless the cutting unit as well as other working units, such as For example, a perforation unit with respect to the function and the structure may have similarities, resulting in such embodiments, the possibilities of additional benefits. If now a variable-format laser cutting unit according to the invention is provided in combination with such a work unit, so depending on the embodiment, at least partially the same components, eg the same control can be used, resulting in a significant reduction of the effort. For example, a common laser can be used for two processing units. The positioning units for both laser tools can be selected identically, which reduces the cost of acquisition and operation.
Der Betrieb des bzw. der jeweiligen Laser-Werkzeuge und des bzw. der Laser-Schneidwerkzeuge über gemeinsame Komponenten, z.B. eine gemeinsame Basisstation kann dabei entweder alternierend taktweise oder aber parallel erfolgen. Im Falle der Verwendung eines gemeinsamen Lasers kann beispielsweise der Strahlengang geteilt werden, so dass je wenigstens ein Laserstrahl aus dem gleichen Laser für die Schneideinheit und für die weitere Arbeitseinheit zur Verfügung steht.The operation of the respective laser tool (s) and laser cutting tool (s) via common components, e.g. a common base station can be either alternating clockwise or parallel. In the case of using a common laser, for example, the beam path can be divided so that at least one laser beam from the same laser is available for the cutting unit and for the further working unit.
Ein taktweiser Betrieb, der der üblichen Betriebsart der genannten Tiefziehmaschinen entspricht, könnte darüber hinaus bei entsprechender alternierender Arbeitsweise der Laser-Schneideinheit und zusätzlicher Arbeitseinheit die Verwendung einer entsprechend kleiner dimensionierten Basiskomponente, beispielsweise eines schwächeren Lasers ermöglichen.A cyclic operation, which corresponds to the usual mode of operation of said thermoforming machines, could also allow the use of a correspondingly smaller dimensioned base component, such as a weaker laser with appropriate alternating operation of the laser cutting unit and additional working unit.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird anhand der Figuren nachfolgend näher erläutert.An embodiment of the invention is illustrated in the drawing and will be explained in more detail with reference to FIGS.
Die einzige Figur zeigt eine schematische perspektivische Darstellung einer erfindungsgemäßen Verpackungsmaschine.The single FIGURE shows a schematic perspective view of a packaging machine according to the invention.
Die Verpackungsmaschine 1 stellt eine sogenannte Tiefziehmaschine dar, die aus einer Folienrolle 2 die sogenannte Unterbahn oder auch Muldenfolie 3 abzieht. Die Muldenfolie 3 wird in einem Formwerkzeug 4 unter Wärme und gegebenenfalls auch Druckeinwirkung zu Packungsmulden 5 geformt. Die Packungsmulden 5 werden in einer Füllstrecke 6 manuell oder automatisch mit Packgut 7 gefüllt. Eine Deckelfolie 8 wird von einer Vorratsrolle 9 abgezogen und als Deckel auf die Packungsmulden 5 aufgelegt. In einem Siegelwerkzeug 10 wird die Deckfolie B mit der Packungsmulde 5 verbunden und versiegelt. In einer Laser-Schneideinheit 11 werden einzelne, im bisherigen Herstellungsprozess zusammenhängend gefertigten Packungen zu Einzelpackungen abgetrennt und der Rand der Packungen in Längsrichtung zurechtgeschnitten. Erfindungsgemäß wird diese Laser-Schneideinheit 11 nunmehr formatvariabel ausgeführt. Die genaue Ausführung ist in der Zeichnung nicht dargestellt. Hierbei können die anhand der Beschreibungseinleitung und der Ansprüche vorgeschlagenen Ausführungen zum Einsatz kommen.The packaging machine 1 represents a so-called thermoforming machine, which pulls off a film roll 2, the so-called lower web or trough film 3. The trough film 3 is formed in a mold 4 under heat and optionally also pressure to packing troughs 5. The packing troughs 5 are filled manually or automatically with packaged goods 7 in a filling section 6. A
Nach dem Abzug von der Folienrolle 9 wird die Deckelfolie 8 durch eine Perforationseinheit 12 geführt. In dieser Perforationseinheit 12 wird auf nicht näher dargestellte Weise die Deckelfolie B in der gewünschten Weise beispielsweise mit einer bestimmte Anzahl und Verteilung von Perforationsöffnungen in der Größenordnung von 20 bis 50 µ versehen.After removal from the film roll 9, the
Eine derart perforierte Deckelfolie ist in der Lage, etwaiges, in der geschlossenen Packungen entstehendes Kohlendioxid und Ethylen an die Außenumgebung durchzulassen und zugleich eine Sauerstoffzufuhr ins Innere der Packung zu gewährleisten. Hierdurch ergibt sich insbesondere bei der Verpackung von pflanzlichen Nahrungsmitteln wie Gemüse, Salat, Obst oder dergleichen eine verbesserte Haltbarkeit. Besonders bei der Verpackung von Spargel hat sich eine derartige Deckelfolie als vorteilhaft erwiesen.Such a perforated lidding film is capable of allowing any carbon dioxide and ethylene produced in the closed packings to pass to the outside environment and at the same time to ensure an oxygen feed into the interior of the pack. This results in particular in the packaging of vegetable foods such as vegetables, lettuce, fruit or the like improved durability. Especially in the packaging of asparagus, such a lidding film has proven to be advantageous.
In der dargestellten Ausführungsform umfasst die Schneideinheit 11 einen nicht näher dargestellten Laser, der in einer Laserstation 13 untergebracht ist. Über zwei Lichtleiter 14, 15 werden sowohl die Schneideinheit 11 als auch die Perforationseinheit 15 mit der notwendigen Laserenergie versorgt. Die entsprechenden optischen Schaltelemente sind nicht näher dargestellt. Ebenso wenig sind die zugehörigen Werkzeuge (Schneidwerkzeuge, Perforationswerkzeuge) und Positioniereinheiten eingezeichnet. Diese Komponenten können analog zu handelsüblichen Laserschneidvorrichtungen ausgestaltet und mit entsprechenden Steuerungen, insbesondere programmierbaren Steuerungen versehen werden.In the illustrated embodiment, the cutting
- 11
- Verpackungsmaschinepackaging machine
- 22
- Folienrollefilm roll
- 33
- Muldenfoliepan sheet
- 44
- Formwerkzeugmold
- 55
- Packungsmuldenpacking troughs
- 66
- Füllstreckefilling section
- 77
- Packgutpackaged goods
- 88th
- Deckelfoliecover film
- 99
- Folienrollefilm roll
- 1010
- Siegelwerkzeugsealing tool
- 1111
- Schneideinheitcutting unit
- 1212
- Perforationseinheitperforation
- 1313
- Laserstationlaser station
- 1414
- Lichtleiteroptical fiber
- 1515
- Lichtleiteroptical fiber
Claims (12)
- Packaging machine for producing packs of packages filled with packaged product and sealed, wherein a cutting unit is provided for cutting the filled and sealed packages in variable formats, characterised in that a format-variable laser cutting unit (11) is provided with a laser tool, whereby a control unit of the laser cutting unit is provided, which comprises a data storage device, in which data and/or program packages for individual predefined packaging formats are stored.
- Packaging machine according to claim 1, characterised in that the laser cutting unit (11) comprises a positionable cutting tool with a controllable positioning unit.
- Packaging machine according to one of the preceding claims, characterised in that an xy-axis system is provided with at least two linear adjustment units.
- Packaging machine according to one of the preceding claims, characterised in that a robot is provided as a positioning unit.
- Packaging machine according to one of the preceding claims, characterised in that a laser is provided which is adjustable by means of deflecting or guiding elements with respect to its operating position.
- Packaging machine according to one of the preceding claims, characterised in that a laser with a variable cutting depth is provided.
- Packaging machine according to one of the preceding claims, characterised in that a laser for weakening material and/or perforation is provided.
- Packaging machine according to one of the preceding claims, characterised in that a laser is provided for coding the packs.
- Packaging machine according to one of the preceding claims, characterised in that a suction unit is provided.
- Packaging machine according to one of the preceding claims, characterised in that a cooling unit is provided.
- Packaging machine according to one of the preceding claims, characterised in that the laser cutting unit and at least one further operating unit comprise at least one common control and/or supply unit.
- Method for producing packs of packages filled with packaged product and sealed, characterised in that the sealed packs are cut by a laser in a variable format.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005018229 | 2005-04-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1714886A1 EP1714886A1 (en) | 2006-10-25 |
| EP1714886B1 true EP1714886B1 (en) | 2008-10-01 |
Family
ID=36579989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06007813A Active EP1714886B1 (en) | 2005-04-19 | 2006-04-13 | Packaging machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1714886B1 (en) |
| AT (1) | ATE409644T1 (en) |
| DE (1) | DE502006001655D1 (en) |
| ES (1) | ES2314776T3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMO20080063A1 (en) | 2008-03-05 | 2009-09-06 | Inovapak Srl | EQUIPMENT AND METHODS FOR PRODUCING CONTAINERS |
| DE102009044163A1 (en) * | 2009-10-01 | 2011-04-07 | Krones Ag | Method for replacing tools in a packaging and storage system, computer program for this and packaging and storage system |
| US8814430B2 (en) | 2010-02-23 | 2014-08-26 | Kraft Foods R&D, Inc. | Food package having opening feature |
| DE102011100784A1 (en) * | 2011-05-06 | 2012-11-08 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Cutting station with complete cutting tool |
| DE102011108939A1 (en) | 2011-07-29 | 2013-01-31 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Method for cutting packages |
| DE102012003830A1 (en) * | 2012-02-29 | 2013-08-29 | Gea Cfs Germany Gmbh | Packaging machine with a replaceable tool |
| CN105059626A (en) * | 2015-07-28 | 2015-11-18 | 周盈裕 | Novel automatic dicing and packaging equipment for finished food product |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010010332A1 (en) * | 2000-01-28 | 2001-08-02 | Bismarck Gottfried Von | Method of and apparatus for making composite containers with identifying indicia |
| WO2002043948A1 (en) * | 2000-12-01 | 2002-06-06 | Laser Machining, Inc. | Method for laser machining easy open, easy tear flexible packaging |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7000195U (en) * | 1970-01-05 | 1970-05-27 | Multivac Hagenmueller Kg | HORIZONTAL CUTTING DEVICE FOR WEBS MADE OF PLASTIC FILM OR COATED PAPER ON PACKAGING MACHINES. |
| DE4208563A1 (en) * | 1992-03-18 | 1993-09-23 | Wilfried Monstadt | Foil packaging cutting machine for continuous handling process - uses high pressure water jet cutter moved along defined path under control of CNC unit to separate sealed package from strip |
| US5339715A (en) * | 1993-09-02 | 1994-08-23 | Davidson Textron Inc. | Programmable pressure control system |
| US5611949A (en) * | 1994-05-04 | 1997-03-18 | Norfin International, Inc. | Method and apparatus for laser cutting separate items carried on a continuously moving web |
| FR2802509A1 (en) * | 1999-12-20 | 2001-06-22 | Jean Pierre Rossi | Cutter for packaging materials uses stream of fluid and/or solid as cutting agent |
-
2006
- 2006-04-13 ES ES06007813T patent/ES2314776T3/en active Active
- 2006-04-13 AT AT06007813T patent/ATE409644T1/en not_active IP Right Cessation
- 2006-04-13 DE DE502006001655T patent/DE502006001655D1/en active Active
- 2006-04-13 EP EP06007813A patent/EP1714886B1/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010010332A1 (en) * | 2000-01-28 | 2001-08-02 | Bismarck Gottfried Von | Method of and apparatus for making composite containers with identifying indicia |
| WO2002043948A1 (en) * | 2000-12-01 | 2002-06-06 | Laser Machining, Inc. | Method for laser machining easy open, easy tear flexible packaging |
Also Published As
| Publication number | Publication date |
|---|---|
| DE502006001655D1 (en) | 2008-11-13 |
| ATE409644T1 (en) | 2008-10-15 |
| EP1714886A1 (en) | 2006-10-25 |
| ES2314776T3 (en) | 2009-03-16 |
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