WO2021151621A1 - Device for producing corner foldovers on tubular bag bodies - Google Patents

Device for producing corner foldovers on tubular bag bodies Download PDF

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Publication number
WO2021151621A1
WO2021151621A1 PCT/EP2021/025017 EP2021025017W WO2021151621A1 WO 2021151621 A1 WO2021151621 A1 WO 2021151621A1 EP 2021025017 W EP2021025017 W EP 2021025017W WO 2021151621 A1 WO2021151621 A1 WO 2021151621A1
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WO
WIPO (PCT)
Prior art keywords
mover
corner
folding tool
movers
tool
Prior art date
Application number
PCT/EP2021/025017
Other languages
German (de)
French (fr)
Other versions
WO2021151621A8 (en
Inventor
Lasse Nagel
Carsten Brommer
Andreas Lamkemeyer
Original Assignee
Windmöller & Hölscher Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windmöller & Hölscher Kg filed Critical Windmöller & Hölscher Kg
Priority to CN202180025610.5A priority Critical patent/CN115335216A/en
Priority to EP21704708.3A priority patent/EP4096910A1/en
Publication of WO2021151621A1 publication Critical patent/WO2021151621A1/en
Publication of WO2021151621A8 publication Critical patent/WO2021151621A8/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/003—Opening or distending bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/20—Flexible containers made from sheets or blanks, e.g. from flattened tubes the longitudinal axes of the containers being perpendicular to the direction in which the sheets or blanks are fed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/36—Folding sheets, blanks or webs by continuously feeding them to stationary members, e.g. plates, ploughs or cores

Definitions

  • the invention relates to a device for producing corner envelopes on tubular sack bodies with a folding tool which can be inserted into a bottom opening of a sack body for producing a corner envelope.
  • EP 2441 574 B1 Such a device is known, for example, from EP 2441 574 B1.
  • the bottom opening of a bag body is formed using a rotating expanding tool.
  • EP 2441 574 B1 also describes that a second expanding tool can be provided independently of the first expanding tool.
  • One spreading tool is then engaged per sack, while the second forms the bottom of the subsequent sack. Both tools are driven by a servo motor and are exposed to strong acceleration forces.
  • the object of the invention is therefore to increase the throughput and the reliability of the device.
  • the basic concept of the invention is based on providing a linear transport system for guiding and controlling the at least one folding tool.
  • a linear transport system is known, for example, from DE 102012204919 A1.
  • the linear transport system consists of a basic profile on which several movers according to the principle of one
  • Linear motor can be guided and controlled.
  • the folding tool By attaching the folding tool to one or more movers, the folding tool can be controlled precisely and highly dynamically.
  • the number of movers and the folding tools attached to them can in principle be expanded as required.
  • a second mover with a second folding tool is provided for producing an opposing corner fold of the floor opening.
  • a third mover with a third folding tool and a fourth mover with a fourth folding tool are provided for producing two opposite corner folds of a subsequent bag body.
  • a fifth mover is provided, to which suction nozzles are attached for opening a floor opening.
  • a sixth mover is provided, to which a pressing tool for pressing a produced corner cover is attached.
  • FIG. 1 shows a linear transport system with 4 movers and with folding tools attached to the movers
  • FIG. 2 shows a detailed view of the folding tool
  • 3 shows an overall view of the device according to the invention.
  • the linear transport system 101 shows a linear transport system 101 with 4 movers and with folding tools attached to the movers.
  • the linear transport system 101 consists of a basic profile 102 with a
  • Guide rail 105 on which any number of movers 103 can be moved.
  • the drive takes place via the coil pack 104 integrated in the basic profile 102, which is controlled by power electronics that are also integrated in the basic profile 102.
  • Each mover 103 has an encoder flag 106 with which the position of the mover can be recognized by the control electronics.
  • the basic profile 102 can be assembled from various components.
  • the desired geometries, lengths and radii of the basic profile 102 are thus formed by the number and selection of the components. There is no need for complex cabling, as the power electronics and the position measuring system are integrated in the basic profile.
  • the movers can accelerate, brake, position and synchronize. They can take absolute and relative positions to each other. They can group and accumulate or generate clamping forces in motion.
  • 2 shows a detailed view of the folding tool 107.
  • the folding tool consists of two folding arms 201 and 202, which are each fastened to one side of a mover 103. At the ends of the holding arms 201 and 202 there are respectively outwardly pointing expansion plates 203 and 204 with which a corner fold can be produced in the bottom opening of a sack body.
  • the holding arms 201 and 202 with the expansion plates 203 and 204 are not attached to one mover, but rather to two different movers.
  • the holding arms 201 and 202 can be designed so that the expansion plates 203 and 204 are in the same opposite position 2 are located as soon as the two movers are in close proximity to one another.
  • FIG. 3 shows an overall view of the device according to the invention.
  • the linear transport system already described according to FIG. 1 is installed in a stationary manner in the device, while a conveyor belt 301 moves below it in the transport direction 302.
  • Tubular bag bodies 303 are moved on the conveyor belt 301.
  • Holding means (not shown further) ensure that the sack bodies 303 do not slip with respect to the conveyor belt 301.
  • the holding means can be implemented, for example, by appropriate magnets.
  • holes are provided in the conveyor belt 301 and a vacuum is generated under the conveyor belt 301, which sucks the sack bodies 303 onto the conveyor belt 301.
  • the bag bodies 303 can consist, for example, of paper, of plastic film or of woven plastic strips or plastic threads.
  • the so-called pre-break strip 304 is provided in order to generate a defined fold line.
  • the pre-break bar 304 can be fixed in a stationary manner with respect to the conveyor belt 301 or it can move along with the conveyor belt 301.
  • Which option is built into the device depends on various production parameters, such as, for example, on the material of the bag body 303 and the transport speed of the conveyor belt 301.
  • the vertically upwardly folded tube end passes through two opposing suction nozzles 305 and 306, which open the two tube layers of the bag body 303 so that the bottom opening 307 is formed in the manner shown.
  • the suction nozzles 305 and 306 can also be designed as suction strips, depending on the application.
  • the suction nozzles 305 and 306 can also be fixed in a stationary manner with respect to the conveyor belt 301 or they can be connected to the Move conveyor belt 301 with it. Which option is built into the device also depends on various production parameters.
  • the hose body 303 After the bottom opening 307 has been formed, the hose body 303 reaches the area of the linear transport system 101.
  • the mover 308 is moved to the position shown at the appropriate time so that the folding tool 309 engages the bottom opening 307 and creates the first corner envelope.
  • the mover 310 moves into the engagement position in order to produce the opposite, second corner envelope of the floor opening 307.
  • the movers 311 and 312 then carry out the same actions with respect to the subsequent hose body that were previously described for the movers 308 and 310 with respect to the hose body 303. During this time, the movers 308 and 310 move back to the waiting position in order to be able to carry out the action for the hose body that follows again at the appropriate time.
  • the movers are only used to move the folding tools.
  • other actions can also be carried out with the movers.
  • suction nozzles are attached to the movers, which open the two hose layers of the bag body before the corner envelope is produced, so that the bottom opening is formed.
  • a small suction turbine could be driven for this purpose, which generates the negative pressure for the suction nozzle.
  • a pressing tool it is also possible for a pressing tool to be attached to the movers which, after the corner envelopes have been produced, is pressed onto the corner envelopes produced in order to produce a defined folding edge in the corner envelopes.

Abstract

The invention relates to a device for producing corner foldovers on tubular bag bodies using a folding tool, which can be introduced into a bottom opening of a bag body to produce a corner foldover. To increase the throughput and the reliability of the device, a linear transport system is provided with at least one mover, the folding tool being fastened to the at least one mover.

Description

Vorrichtung zum Erzeugen von Eckumschlägen an schlauchförmigen Sackkörpern Device for producing corner envelopes on tubular sack bodies
Die Erfindung betrifft eine Vorrichtung zum Erzeugen von Eckumschlägen an schlauchförmigen Sackkörpern mit einem Faltwerkzeug, das zum Erzeugen eines Eckumschlags in eine Bodenöffnung eines Sackkörpers einführbar ist. The invention relates to a device for producing corner envelopes on tubular sack bodies with a folding tool which can be inserted into a bottom opening of a sack body for producing a corner envelope.
Eine derartige Vorrichtung ist beispielsweise aus EP 2441 574 B1 bekannt. Gemäß dieser Vorrichtung wird die Bodenöffnung eines Sackkörpers anhand eines umlaufenden Spreizwerkzeugen gebildet. In der EP 2441 574 B1 ist auch beschrieben, dass ein zweites Spreizwerkzeug unabhängig von dem ersten Spreizwerkzeug vorgesehen werden kann. Pro Sack ist dann ein Spreizwerkzeug im Eingriff, während das zweite den Boden des nachfolgenden Sackes ausbildet. Beide Werkzeuge werden über jeweils einen Servomotor angetrieben und sind dabei starken Beschleunigungskräften ausgesetzt. Such a device is known, for example, from EP 2441 574 B1. According to this device, the bottom opening of a bag body is formed using a rotating expanding tool. EP 2441 574 B1 also describes that a second expanding tool can be provided independently of the first expanding tool. One spreading tool is then engaged per sack, while the second forms the bottom of the subsequent sack. Both tools are driven by a servo motor and are exposed to strong acceleration forces.
Aufgrund des begrenzten Bauraums lässt sich die Anzahl der Spreizwerkzeuge allerdings nicht weiter erhöhen. Damit ist die Durchsatzleistung der Vorrichtung begrenzt, da beide Werkzeuge auch nur mit maximal vorgegebenen Geschwindigkeiten und Beschleunigungen betrieben werden können. Due to the limited installation space, however, the number of spreading tools cannot be increased any further. The throughput of the device is thus limited, since both tools can only be operated at maximum predetermined speeds and accelerations.
Aufgabe der Erfindung ist es daher, die Durchsatzleistung und die Zuverlässigkeit der Vorrichtung zu erhöhen. The object of the invention is therefore to increase the throughput and the reliability of the device.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere bevorzugte Ausführungsformen finden sich in den Unteransprüchen. Der grundsätzliche Gedanke der Erfindung basiert darauf, für die Führung und Steuerung des mindestens einen Faltwerkzeugs ein Lineartransportsystem vorzusehen. Ein Lineartransportsystem ist beispielsweise aus der DE 102012204919 A1 bekannt. Das Lineartransportsystem besteht aus einem Grundprofil, auf dem mehrere Mover nach dem Prinzip einesThis object is achieved by the features of claim 1. Further preferred embodiments can be found in the subclaims. The basic concept of the invention is based on providing a linear transport system for guiding and controlling the at least one folding tool. A linear transport system is known, for example, from DE 102012204919 A1. The linear transport system consists of a basic profile on which several movers according to the principle of one
Linearmotors geführt und gesteuert werden können. Indem das Faltwerkzeug an einem oder mehreren Movern befestigt ist, kann somit das Faltwerkzeug präzise und hochdynamisch gesteuert werden. Die Anzahl der Mover und der daran befestigten Faltwerkzeuge kann dabei prinzipiell beliebig erweitert werden. Linear motor can be guided and controlled. By attaching the folding tool to one or more movers, the folding tool can be controlled precisely and highly dynamically. The number of movers and the folding tools attached to them can in principle be expanded as required.
Nach einer bevorzugten Ausführungsform ist ein zweiter Mover mit einem zweiten Faltwerkzeug zum Erzeugen eines gegenüberliegenden Eckumschlags der Bodenöffnung vorgesehen. According to a preferred embodiment, a second mover with a second folding tool is provided for producing an opposing corner fold of the floor opening.
Nach einerweiteren bevorzugten Ausführungsform sind ein dritter Mover mit einem dritten Faltwerkzeug und ein vierter Mover mit einem vierten Faltwerkzeug zum Erzeugen von zwei gegenüberliegenden Eckumschlägen eines nachfolgenden Sackkörpers vorgesehen. According to a further preferred embodiment, a third mover with a third folding tool and a fourth mover with a fourth folding tool are provided for producing two opposite corner folds of a subsequent bag body.
Nach einerweiteren bevorzugten Ausführungsform ist ein fünfter Mover vorgesehen, an dem Saugstutzen zum Öffnen einer Bodenöffnung befestigt sind. Nach einer weiteren bevorzugten Ausführungsform ist ein sechster Mover vorgesehen, an dem ein Anpresswerkzeug zum Anpressen eines erzeugten Eckumschlags befestigt ist. According to a further preferred embodiment, a fifth mover is provided, to which suction nozzles are attached for opening a floor opening. According to a further preferred embodiment, a sixth mover is provided, to which a pressing tool for pressing a produced corner cover is attached.
Weitere Einzelheiten und Vorteile der Erfindung werden anhand der beigefügten Zeichnungen beschrieben. In diesen zeigen: Further details and advantages of the invention are described with reference to the accompanying drawings. In these show:
Fig. 1 ein Lineartransportsystem mit 4 Movern und mit an den Movern befestigten Faltwerkzeugen, 1 shows a linear transport system with 4 movers and with folding tools attached to the movers,
Fig. 2 eine Detailansicht des Faltwerkzeugs, und Fig. 3 eine Gesamtansicht der erfindungsgemäßen Vorrichtung. 2 shows a detailed view of the folding tool, and 3 shows an overall view of the device according to the invention.
Fig. 1 zeigt ein Lineartransportsystem 101 mit 4 Movern und mit an den Movern befestigten Faltwerkzeugen. Seinem grundsätzlichen Aufbau nach besteht das Lineartransportsystem 101 aus einem Grundprofil 102 mit einer1 shows a linear transport system 101 with 4 movers and with folding tools attached to the movers. According to its basic structure, the linear transport system 101 consists of a basic profile 102 with a
Führungsschiene 105, auf der eine beliebige Anzahl von Movern 103 bewegt werden kann. Der Antrieb erfolgt über das im Grundprofil 102 integrierte Spulenpaket 104, das durch eine ebenfalls im Grundprofil 102 integrierte Leistungselektronik angesteuert wird. Jeder Mover 103 weist eine Geberfahne 106 auf, mit der die Position des Movers von der Steuerelektronik erkannt werden kann. Guide rail 105 on which any number of movers 103 can be moved. The drive takes place via the coil pack 104 integrated in the basic profile 102, which is controlled by power electronics that are also integrated in the basic profile 102. Each mover 103 has an encoder flag 106 with which the position of the mover can be recognized by the control electronics.
Das Grundprofil 102 kann aus verschiedenen Komponenten zusammengesteckt werden. Die gewünschten Geometrien, Längen und Radien des Grundprofils 102 werden damit durch die Anzahl und Auswahl der Komponenten gebildet. Eine aufwändige Verkabelung entfällt, da die Leistungselektronik und das Wegmesssystem im Grundprofil integriert sind. The basic profile 102 can be assembled from various components. The desired geometries, lengths and radii of the basic profile 102 are thus formed by the number and selection of the components. There is no need for complex cabling, as the power electronics and the position measuring system are integrated in the basic profile.
Für die Mover können problemlos Geschwindigkeiten von ca. 4 m/s bei sehr hoher Positioniergenauigkeit erreicht werden. Die Mover können beschleunigen, bremsen, positionieren und sich synchronisieren. Sie können absolute und relative Positionen zueinander einnehmen. Sie können sich gruppieren und aufstauen oder aber in der Bewegung Klemmkräfte erzeugen. Fig. 2 zeigt eine Detailansicht des Faltwerkzeugs 107. Das Faltwerkzeug besteht aus zwei Flaltearmen 201 und 202, die jeweils an einer Seite eines Mover 103 befestigt sind. An den Enden der Haltearme 201 und 202 befinden sich jeweils nach außen zeigende Spreizplatten 203 und 204, mit denen ein Eckumschlag in der Bodenöffnung eines Sackkörpers erzeugt werden kann. Als Variante zu Fig. 1 ist es im Übrigen selbstverständlich auch möglich, dass die Haltearme 201 und 202 mit den Spreizplatten 203 und 204 nicht an einem Mover, sondern jeweils an zwei verschiedenen Movern befestigt sind. In diesem Fall können die Haltearme 201 und 202 so ausgebildet sein, dass die Spreizplatten 203 und 204 sich in der gleichen gegenüberliegenden Stellung gemäß Fig. 2 befinden, sobald die beiden Mover dicht hintereinander in Position sind. For the movers, speeds of approx. 4 m / s can be achieved with very high positioning accuracy. The movers can accelerate, brake, position and synchronize. They can take absolute and relative positions to each other. They can group and accumulate or generate clamping forces in motion. 2 shows a detailed view of the folding tool 107. The folding tool consists of two folding arms 201 and 202, which are each fastened to one side of a mover 103. At the ends of the holding arms 201 and 202 there are respectively outwardly pointing expansion plates 203 and 204 with which a corner fold can be produced in the bottom opening of a sack body. As a variant of FIG. 1, it is of course also possible that the holding arms 201 and 202 with the expansion plates 203 and 204 are not attached to one mover, but rather to two different movers. In this case, the holding arms 201 and 202 can be designed so that the expansion plates 203 and 204 are in the same opposite position 2 are located as soon as the two movers are in close proximity to one another.
Fig. 3 zeigt eine Gesamtansicht der erfindungsgemäßen Vorrichtung. Das gemäß Fig. 1 bereits beschriebene Lineartransportsystem ist ortsfest in der Vorrichtung verbaut, während sich darunter ein Förderband 301 in Transportrichtung 302 bewegt. Auf dem Förderband 301 werden schlauchförmige Sackkörper 303 bewegt. Durch nicht weiter gezeigte Haltemittel ist sichergestellt, dass die Sackkörper 303 gegenüber dem Förderband 301 nicht verrutschen. Die Haltemittel können beispielsweise durch entsprechende Magnete realisiert werden. Eine andere Möglichkeit besteht darin, dass in dem Förderband 301 Löcher vorgesehen sind und unter dem Förderband 301 ein Vakuum erzeugt wird, das die Sackkörper 303 an das Förderband 301 ansaugt. Die Sackkörper 303 können beispielsweise aus Papier, aus Kunststofffolie oder aus gewebten Kunststoffbändern bzw. Kunststofffäden bestehen. 3 shows an overall view of the device according to the invention. The linear transport system already described according to FIG. 1 is installed in a stationary manner in the device, while a conveyor belt 301 moves below it in the transport direction 302. Tubular bag bodies 303 are moved on the conveyor belt 301. Holding means (not shown further) ensure that the sack bodies 303 do not slip with respect to the conveyor belt 301. The holding means can be implemented, for example, by appropriate magnets. Another possibility is that holes are provided in the conveyor belt 301 and a vacuum is generated under the conveyor belt 301, which sucks the sack bodies 303 onto the conveyor belt 301. The bag bodies 303 can consist, for example, of paper, of plastic film or of woven plastic strips or plastic threads.
In Transportrichtung gesehen befindet sich vor der in Fig. 3 gezeigten Vorrichtung eine Station, mit der das Schlauchende des Sackkörpers 303 vom Förderband 301 angehoben und vertikal nach oben gefaltet wird. Zur Erzeugung einer definierten Faltlinie ist dabei die sogenannte Vorbruchleiste 304 vorgesehen. Die Vorbruchleiste 304 kann gegenüber dem Förderband 301 ortsfest fixiert sein oder aber sich mit dem Förderband 301 mitbewegen. Seen in the transport direction, there is a station in front of the device shown in FIG. 3, with which the hose end of the bag body 303 is lifted from the conveyor belt 301 and folded vertically upwards. The so-called pre-break strip 304 is provided in order to generate a defined fold line. The pre-break bar 304 can be fixed in a stationary manner with respect to the conveyor belt 301 or it can move along with the conveyor belt 301.
Welche Möglichkeit in der Vorrichtung verbaut ist, hängt von verschiedenen Produktionsparametern ab, wie zum Beispiel von dem Material des Sackkörpers 303 und der Transportgeschwindigkeit des Förderbands 301. Which option is built into the device depends on various production parameters, such as, for example, on the material of the bag body 303 and the transport speed of the conveyor belt 301.
Nachdem der Sackkörper 303 die vorgenannte Station verlassen hat, durchläuft das vertikal nach oben gefaltete Schlauchende zwei gegenüberliegende Saugstutzen 305 und 306, die die beiden Schlauchlagen des Sackkörpers 303 öffnen, sodass sich in der gezeigten Weise die Bodenöffnung 307 bildet. Die Saugstutzen 305 und 306 können je nach Anwendungsfall auch als Saugleisten ausgeführt sein. Im Übrigen können auch die Saugstutzen 305 und 306 gegenüber dem Förderband 301 ortsfest fixiert sein oder aber sich mit dem Förderband 301 mitbewegen. Welche Möglichkeit in der Vorrichtung verbaut ist, hängt auch hier von verschiedenen Produktionsparametern ab. After the bag body 303 has left the aforementioned station, the vertically upwardly folded tube end passes through two opposing suction nozzles 305 and 306, which open the two tube layers of the bag body 303 so that the bottom opening 307 is formed in the manner shown. The suction nozzles 305 and 306 can also be designed as suction strips, depending on the application. In addition, the suction nozzles 305 and 306 can also be fixed in a stationary manner with respect to the conveyor belt 301 or they can be connected to the Move conveyor belt 301 with it. Which option is built into the device also depends on various production parameters.
Nachdem die Bodenöffnung 307 gebildet wurde, gelangt der Schlauchkörper 303 in den Bereich des Lineartransportsystems 101. Der Mover 308 wird zum passenden Zeitpunkt in die gezeigte Position gefahren, sodass das Faltwerkzeug 309 in Eingriff mit der Bodenöffnung 307 gelangt und den ersten Eckumschlag erzeugt. In entsprechender weise fährt der Mover 310 in die Eingriffsposition, um den gegenüberliegenden zweiten Eckumschlag der Bodenöffnung 307 zu erzeugen. After the bottom opening 307 has been formed, the hose body 303 reaches the area of the linear transport system 101. The mover 308 is moved to the position shown at the appropriate time so that the folding tool 309 engages the bottom opening 307 and creates the first corner envelope. In a corresponding manner, the mover 310 moves into the engagement position in order to produce the opposite, second corner envelope of the floor opening 307.
Die Mover 311 und 312 führen sodann mit Bezug auf den nachfolgenden Schlauchkörper die gleichen Aktionen durch, die zuvor für die Mover 308 und 310 mit Bezug auf den Schlauchkörper 303 beschrieben wurden. In dieser Zeit fahren die Mover 308 und 310 wieder in die Warteposition, um die Aktion für den wiederum nachfolgenden Schlauchkörper zu gegebener Zeit durchführen zu können. The movers 311 and 312 then carry out the same actions with respect to the subsequent hose body that were previously described for the movers 308 and 310 with respect to the hose body 303. During this time, the movers 308 and 310 move back to the waiting position in order to be able to carry out the action for the hose body that follows again at the appropriate time.
Gemäß Fig. 3 werden die Mover nur zum Bewegen der Faltwerkzeuge eingesetzt. Selbstverständlich können mit den Movern aber auch noch andere Aktionen durchgeführt werden. According to FIG. 3, the movers are only used to move the folding tools. Of course, other actions can also be carried out with the movers.
Beispielsweise ist es möglich, dass an den Movern Saugstutzen befestigt sind, die vor dem Erzeugen des Eckumschlags die beiden Schlauchlagen des Sackkörpers öffnen, sodass sich die Bodenöffnung bildet. Über dieFor example, it is possible that suction nozzles are attached to the movers, which open the two hose layers of the bag body before the corner envelope is produced, so that the bottom opening is formed. About the
Führungsrollen der Mover könnte dazu eine kleine Saugturbine angetrieben werden, die den Unterdrück für die Saugstutzen erzeugt. A small suction turbine could be driven for this purpose, which generates the negative pressure for the suction nozzle.
Ebenso ist es möglich, dass an den Movern ein Anpresswerkzeug befestigt ist, das nach dem Erzeugen der Eckumschläge auf die erzeugten Eckumschläge gepresst wird, um eine definierte Faltkante in den Eckumschlägen zu erzeugen.
Figure imgf000008_0001
It is also possible for a pressing tool to be attached to the movers which, after the corner envelopes have been produced, is pressed onto the corner envelopes produced in order to produce a defined folding edge in the corner envelopes.
Figure imgf000008_0001

Claims

Patentansprüche Claims
1. Vorrichtung zum Erzeugen von Eckumschlägen an schlauchförmigen Sackkör pern mit einem Faltwerkzeug, das zum Erzeugen eines Eckumschlags in eine Bo denöffnung eines Sackkörpers einführbar ist, gekennzeichnet durch ein Lineartransportsystem mit mindestens einem Mover, wobei das Faltwerk zeug an dem mindestens einem Mover befestigt ist. 1. Apparatus for generating corner envelopes on tubular Sackkör pern with a folding tool that can be inserted den opening a sack body to generate a corner envelope, characterized by a linear transport system with at least one mover, the folding tool is attached to the at least one mover.
2. Vorrichtung nach Anspruch 1 , wobei ein zweiter Mover mit einem zweiten Falt werkzeug zum Erzeugen eines gegenüberliegenden Eckumschlags der Boden öffnung vorgesehen ist. 2. Apparatus according to claim 1, wherein a second mover is provided with a second folding tool for generating an opposite corner envelope of the floor opening.
3. Vorrichtung nach einem der Ansprüche 1 - 2, wobei ein dritter Mover mit einem dritten Faltwerkzeug und ein vierter Mover mit einem vierten Faltwerkzeug zum Erzeugen von zwei gegenüberliegenden Eckumschlägen eines nachfolgenden Sackkörpers vorgesehen sind. 3. Device according to one of claims 1-2, wherein a third mover with a third folding tool and a fourth mover with a fourth folding tool are provided for producing two opposite corner envelopes of a subsequent bag body.
4. Vorrichtung nach einem der Ansprüche 1 - 3, wobei ein fünfter Mover vorgese hen ist, an dem Saugstutzen zum Öffnen einer Bodenöffnung befestigt sind. 4. Device according to one of claims 1-3, wherein a fifth mover is vorgese hen, are attached to the suction nozzle for opening a floor opening.
5. Vorrichtung nach einem der Ansprüche 1 - 4, wobei ein sechster Mover vorge sehen ist, an dem ein Anpresswerkzeug zum Anpressen eines erzeugten Eck umschlags befestigt ist. 5. Device according to one of claims 1-4, wherein a sixth mover is easily seen on which a pressing tool for pressing a generated corner envelope is attached.
PCT/EP2021/025017 2020-01-29 2021-01-18 Device for producing corner foldovers on tubular bag bodies WO2021151621A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180025610.5A CN115335216A (en) 2020-01-29 2021-01-18 Device for producing corner folds in tubular bags
EP21704708.3A EP4096910A1 (en) 2020-01-29 2021-01-18 Device for producing corner foldovers on tubular bag bodies

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EP102020102118.6 2020-01-29
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712275A (en) * 1952-07-11 1955-07-05 St Regis Paper Co Bag bottom shaping device
EP0999134A2 (en) * 1998-11-03 2000-05-10 Klockner Bartelt, Inc. Modular packaging machine with web tension control
DE102008063949A1 (en) * 2008-08-05 2010-02-11 Windmöller & Hölscher Kg Trailing slide
EP2441574B1 (en) 2010-10-14 2013-05-15 Starlinger & Co Gesellschaft m.b.H. Method and device for constructing open bases at end sections of tubular bag bodies
DE102012204919A1 (en) 2012-03-27 2013-10-02 Beckhoff Automation Gmbh STATOR DEVICE FOR A LINEAR MOTOR AND LINEAR TRANSPORT SYSTEM
EP2711165A1 (en) * 2012-09-24 2014-03-26 Starlinger & Co. Gesellschaft m.b.H. Conveyor device for sack bodies

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712275A (en) * 1952-07-11 1955-07-05 St Regis Paper Co Bag bottom shaping device
EP0999134A2 (en) * 1998-11-03 2000-05-10 Klockner Bartelt, Inc. Modular packaging machine with web tension control
DE102008063949A1 (en) * 2008-08-05 2010-02-11 Windmöller & Hölscher Kg Trailing slide
EP2441574B1 (en) 2010-10-14 2013-05-15 Starlinger & Co Gesellschaft m.b.H. Method and device for constructing open bases at end sections of tubular bag bodies
DE102012204919A1 (en) 2012-03-27 2013-10-02 Beckhoff Automation Gmbh STATOR DEVICE FOR A LINEAR MOTOR AND LINEAR TRANSPORT SYSTEM
EP2711165A1 (en) * 2012-09-24 2014-03-26 Starlinger & Co. Gesellschaft m.b.H. Conveyor device for sack bodies

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EP4096910A1 (en) 2022-12-07
CN115335216A (en) 2022-11-11

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