EP0830937A1 - Method and apparatus for making bags with handles - Google Patents

Method and apparatus for making bags with handles Download PDF

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Publication number
EP0830937A1
EP0830937A1 EP96115023A EP96115023A EP0830937A1 EP 0830937 A1 EP0830937 A1 EP 0830937A1 EP 96115023 A EP96115023 A EP 96115023A EP 96115023 A EP96115023 A EP 96115023A EP 0830937 A1 EP0830937 A1 EP 0830937A1
Authority
EP
European Patent Office
Prior art keywords
strip
starting material
handle application
handles
material strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96115023A
Other languages
German (de)
French (fr)
Other versions
EP0830937B1 (en
Inventor
Wilfried Dr. Kolbe
Klaus Schirrich
Dieter Obermeier
Fred Rostalski
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke 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.)
Filing date
Publication date
Application filed by Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to DE59608564T priority Critical patent/DE59608564D1/en
Priority to ES96115023T priority patent/ES2170188T3/en
Priority to AT96115023T priority patent/ATE211681T1/en
Priority to EP96115023A priority patent/EP0830937B1/en
Priority to JP19925597A priority patent/JP3774545B2/en
Priority to US08/893,905 priority patent/US5980441A/en
Publication of EP0830937A1 publication Critical patent/EP0830937A1/en
Application granted granted Critical
Publication of EP0830937B1 publication Critical patent/EP0830937B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/864—Mounting separate handles on bags, sheets or webs
    • 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
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without 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
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/926—Pliable container having handle or suspension means

Definitions

  • the invention relates to a method and an apparatus for manufacturing of bags with handles.
  • Bags made of paper or plastic used for example as retail bags in retail stores are usually used with two handles provided attached to the opposite walls of the bag are.
  • the handles usually consist of folded layers Strips of paper or plastic separated by two right angles Fold over into a U shape and with the free ends of its free legs are glued or welded to the bag wall.
  • handles are either attached to the finished bag or already attached to the endless raw material before the bags are finished, before or after it is closed into a hose.
  • the Handle application devices are mostly symmetrical above and below the transport path for the bags arranged so that the handles of opposite Sides can be attached to the pouches.
  • everyone Handle application device is previously associated with a rolling device with the the starting material for the handle in question in the form of an endless Strip is pulled off a roll. The width of this strip is on the width of the desired handle and on the number of layers of material depends on this handle and is typically of the order of magnitude of about 8 cm.
  • the roll from which this strip is pulled has a relatively large initial diameter, for example of the order of magnitude of 1 m, so that frequent interruptions in operation due to roll changes be avoided. Due to the unfavorable relationship between Roll width and roll diameter, the rolls are relatively unstable and therefore difficult to handle.
  • the object of the invention is to provide a method for producing bags Carrying handles to create an easy and safe handling of the starting material allowed for the handles.
  • the starting material for the plurality becomes a bag handles initially in the form of a single strip of material fed, which then continuously into several parallel partial strips is divided for the individual handles.
  • the Width of the roll of which the material strip in the method according to the invention is deducted at least twice as large as at the Technology, so that with the same roll diameter a much higher Stability of the role achieved and thus a much easier handling is made possible.
  • the method according to the invention makes a considerable Simplification of the device enables, since only a single rolling device is required for the starting material for all handles.
  • Figure 1 is of a plant for the production of bags with handles only a handle docking station 10 is shown, which is perpendicular in the direction to the drawing plane of the bags 12 is passed.
  • a handle docking station 10 is shown, which is perpendicular in the direction to the drawing plane of the bags 12 is passed.
  • the handles on the already finished bags 12 are attached.
  • the handle application station 10 has an upper handle application device 14 and one Lower handle attachment device 16 designed as a mirror image of this.
  • the Grip attachments are shown here only as a block because of their construction is known as such.
  • the two handle application devices 14 and 16 is a common unwinding unit 18 assigned in which a raw material strip 20 (e.g. paper) is withdrawn from a roll 22.
  • the raw material strip 20 has in the example shown a width of about 16 cm.
  • the roller 22 has an initial diameter of 1 m, for example, and is non-rotatable on a spindle 24 attached, which can be braked and optionally also driven in a drive housing 26 ( Figure 2) is mounted.
  • a dancer system with deflection rollers 28 and a dancer roller 30 acts via a controller 32 on the brake of the spindle 24, so that the tension of the starting material strip 20 is regulated to 100 N, for example.
  • a longitudinal cutting device downstream of the dancer arrangement with a Knife roll 34 and a counter knife roll 36 divide the raw material strip 20 along its center line into two parallel partial strips 38, 40, which are deflected upwards or downwards on deflection rollers 42.
  • the drive directly with the upper Handle application device 14 is coupled so that the partial strip 38 as required can be supplied.
  • the partial strip 38 then continues to form U-shaped handles 48 processed, which are glued to the top of each bag 12, as in Figure 2 can be seen.
  • the lower partial strip 40 is in the lower one Handle application device 16 processed to carry handles, which on the (in Figure 2 undetectable) bottom wall of each bag 12 can be attached.
  • the two handle application devices 14 and 16 work synchronously.
  • a web train 50 is provided for the lower partial strip 40 independent of the lower handle application device 16 by a motor 52 is driven.
  • the speed of the motor 52 is controlled by a controller 54 regulated, the tension of the lower by means of a measuring roller 56 Partial strip 40 scans.
  • the tensile stress of the partial strip 40 is on regulated in this way to a constant value (50 N in the example described), exactly half the tensile stress of the raw material strip 20 corresponds.
  • the difference between the tension of the raw material strip 20 and the tension of the sub-strip 40 is the tension of the other Partial strip 38.
  • the control system described thus ensures that the two partial strips 38 and 40 always have the same tension and thus there is no distortion of the raw material strip the slitter 34, 36 comes. Since both partial strips 38, 40 thus the lower strip will also have the same speed 40 fed to the lower handle application device 16 as needed, without slight design-related differences between the two handle application devices 14, 16 to an accumulation of tension differences to lead.
  • the embodiment described above can be modified in a variety of ways will.
  • the raw material strip 20 it is possible to use the raw material strip 20 to be divided into more than two partial strips if more than one on a bag two handles are to be attached or when each handle is off consists of several separate strips.
  • the train is for one Partial strips coupled with the associated handle application device, and the trains for the other sub-strips are regulated as for the above Partial strip 40 has been described.
  • the tension ratio is from the number of partial strips and, if the partial strips are of different widths have, also depending on the width ratio.

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Abstract

The method involves first feeding source material for the bag handles (48) in the form of a single material strip (20) which is then continuously separated into several parallel strips (38,40) for the individual handles. The tensioning of the source material strip is controlled so that the pull-in speed for one strip section (38) is determined by the working speed of a corresponding handle laying device, and the tensioning of the other strip section (40) is adjusted to a value which is in proportion to the tensioning of the source material strip.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung von Beuteln mit Tragegriffen.The invention relates to a method and an apparatus for manufacturing of bags with handles.

Beutel aus Papier oder Kunststoff, die beispielsweise im Einzelhandel als Tragetaschen verwendet werden, sind üblicherweise mit je zwei Tragegriffen versehen, die an den gegenüberliegenden Wänden des Beutels angebracht sind. Die Tragegriffe bestehen zumeist aus zu mehreren Lagen gefalteten Streifen aus Papier oder Kunststoff, die durch zweimaliges rechtwinkliges Umfalten zu einem U geformt und mit den freien Enden ihrer freien Schenkel an die Beutelwand angeklebt oder angeschweißt sind.Bags made of paper or plastic, used for example as retail bags in retail stores are usually used with two handles provided attached to the opposite walls of the bag are. The handles usually consist of folded layers Strips of paper or plastic separated by two right angles Fold over into a U shape and with the free ends of its free legs are glued or welded to the bag wall.

Verfahren und Vorrichtungen zum Herstellen der Beutel als solche sind in vielfältigen Ausführungsformen bekannt. Beispielsweise wird in US-A-3 439 591 ein Verfahren beschrieben, bei dem die Beutel aus einem endlosen Schlauch hergestellt werden, der in Abschnitte geeigneter Länge aufgeteilt wird. Aus jedem Abschnitt wird durch Einfalten und Verkleben eines Endes ein Beutel mit geschlossenem Boden gebildet.Methods and devices for making the bags as such are disclosed in various embodiments known. For example, in US-A-3,439 591 described a method in which the pouch is made from an endless Hose are made that is divided into sections of appropriate length becomes. Each section is made by folding and gluing one end a bag with closed bottom formed.

Beispiele für Vorrichtungen zum Herstellen und Anlegen der Tragegriffe werden beschrieben in US-A-3 613 523, US-A-5 298 007 und DE-U-94 14 380. Die Tragegriffe werden entweder an den fertigen Beutelin angebracht oder bereits vor Fertigstellung der Beutel an dem endlosen Ausgangsmaterial angebracht, bevor oder nachdem dieses zu einem Schlauch geschlossen wird. Die Griffanlegevorrichtungen sind zumeist symmetrisch oberhalb und unterhalb der Transportbahn für die Beutel angeordnet, so daß die Tragegriffe von entgegengesetzten Seiten her an den Beuteln angebracht werden können. Jeder Griffanlegevorrichtung ist bisher eine Abrolleinrichtung zugeordnet, mit der das Ausgangsmaterial für den betreffenden Tragegriff in der Form eines endlosen Streifens von einer Rolle abgezogen wird. Die Breite dieses Streifens Ist von der Breite des gewünschten Tragegriffes und von der Anzahl der Materiallagen dieses Tragegriffes abhängig und liegt typischerweise in der Größenordnung von etwa 8 cm. Die Rolle, von der dieser Streifen abgezogen wird, hat einen relativ großen Anfangsdurchmesser, beispielsweise in der Größenordnung von 1 m, damit allzu häufige Betriebsunterbrechungen durch Rollenwechsel vermieden werden. Aufgrund des ungünstigen Verhältnisses zwischen Rollenbreite und Rollendurchmesser sind die Rollen relativ instabil und deshalb schwer zu handhaben.Examples of devices for manufacturing and applying the handles are described in US-A-3 613 523, US-A-5 298 007 and DE-U-94 14 380. The handles are either attached to the finished bag or already attached to the endless raw material before the bags are finished, before or after it is closed into a hose. The Handle application devices are mostly symmetrical above and below the transport path for the bags arranged so that the handles of opposite Sides can be attached to the pouches. Everyone Handle application device is previously associated with a rolling device with the the starting material for the handle in question in the form of an endless Strip is pulled off a roll. The width of this strip is on the width of the desired handle and on the number of layers of material depends on this handle and is typically of the order of magnitude of about 8 cm. The roll from which this strip is pulled has a relatively large initial diameter, for example of the order of magnitude of 1 m, so that frequent interruptions in operation due to roll changes be avoided. Due to the unfavorable relationship between Roll width and roll diameter, the rolls are relatively unstable and therefore difficult to handle.

Aufgabe der Erfindung ist es, ein Verfahren zum Herstellen von Beuteln mit Tragegriffen zu schaffen, das eine einfache und sichere Handhabung des Ausgangsmaterials für die Tragegriffe gestattet.The object of the invention is to provide a method for producing bags Carrying handles to create an easy and safe handling of the starting material allowed for the handles.

Diese Aufgabe wird erfindungsgemäß durch das in Patentanspruch 1 angegebene Verfahren gelöst. Eine zweckmäßige Vorrichtung zur Durchführung dieses Verfahrens ist Gegenstand des unabhängigen Anspruchs 3.This object is achieved by the claim 1 Procedure solved. A convenient device for performing this The procedure is the subject of independent claim 3.

Erfindungsgemäß wird das Ausgangsmaterial für die mehreren zu einem Beutel gehörenden Tragegriffe zunächst in der Form eines einzigen Materialstreifens zugeführt, der dann kontinuierlich in mehrere parallele Teilstreifen für die einzelnen Tragegriffe aufgeteilt wird.According to the invention, the starting material for the plurality becomes a bag handles initially in the form of a single strip of material fed, which then continuously into several parallel partial strips is divided for the individual handles.

Da an jedem Beutel mindestens zwei Tragegriffe angebracht werden, ist die Breite der Rolle, von der bei dem erfindungsgemäßen Verfahren der Materialstreifen abgezogen wird, mindestens doppelt so groß wie beim Stand der Technik, so daß bei gleichem Rollendurchmesser eine wesentlich höhere Stabilität der Rolle erreicht und damit eine wesentlich einfachere Handhabung ermöglicht wird.Since at least two handles are attached to each bag, the Width of the roll of which the material strip in the method according to the invention is deducted, at least twice as large as at the Technology, so that with the same roll diameter a much higher Stability of the role achieved and thus a much easier handling is made possible.

Weiterhin wird durch das erfindungsgemäße Verfahren eine beträchtliche Vereinfachung der Vorrichtung ermöglicht, da nur noch eine einzige Abrollvorrichtung für das Ausgangsmaterial für sämtliche Tragegriffe benötigt wird. Wenn das Ausgangsmaterial für die Tragegriffe verbraucht ist, kann mit nur einem einzigen Rollenwechsel das Ausgangsmaterial für sämtliche Griffanlegevorrichtungen wieder ergänzt werden. Hierdurch läßt sich nicht nur die Dauer der für den Rollenwechsel benötigten Betriebsunterbrechung verkürzen, sondern es wird auch die Anzahl dieser Betriebsunterbrechungen vermindert, weil bei dem erfindungsgemäßen Verfahren - anders als beim Stand der Technik - sichergestellt ist, daß das Material für die mehreren Griffanlegevorrichtungen stets genau zum selben Zeitpunkt erschöpft ist.Furthermore, the method according to the invention makes a considerable Simplification of the device enables, since only a single rolling device is required for the starting material for all handles. When the raw material for the handles is used up, you can use only a single roll change, the starting material for all handle application devices be added again. This not only allows Shorten the duration of the business interruption required for changing roles, but it also reduces the number of business interruptions, because in the method according to the invention - different from the state the technology - it is ensured that the material for the multiple handle application devices is always exhausted at exactly the same time.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen. Advantageous refinements and developments of the invention result itself from the subclaims.

Durch die in den Unteransprüchen angegebenen Merkmale wird insbesondere mit einfachen Mitteln sichergestellt, daß der Ausgangsmaterialstreifen und die daraus gebildeten Teilstreifen stets die richtige Zugspannung haben und daß die Teilstreifen der Gesamtanlage synchron, mit der durch den Arbeitstakt der Gesamtanlage geforderten Geschwindigkeit zugeführt werden.The features specified in the subclaims in particular ensured by simple means that the raw material strip and the partial strips formed from it always have the correct tension and that the partial strips of the overall system are synchronized with that by the work cycle required speed can be supplied to the overall system.

Im folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.A preferred embodiment of the invention is described below the drawing explained in more detail.

Es zeigen:

Fig. 1
eine schematische Seitenansicht einer Vorrichtung zum Zuführen des Ausgangsmaterials für die Tragegriffe; und
Fig. 2
die Vorrichtung nach Figur 1 in der Draufsicht.
Show it:
Fig. 1
is a schematic side view of a device for feeding the starting material for the handles; and
Fig. 2
the device of Figure 1 in plan view.

In Figur 1 ist von einer Anlage zur Herstellung von Beuteln mit Tragegriifen lediglich eine Griffanlegestation 10 gezeigt, die in der Richtung senkrecht zur Zeichenebene von den Beuteln 12 durchlaufen wird. Im gezeigten Beispiel soll der Einfachheit halber angenommen werden, daß die Tragegriffe an den im übrigen bereits fertigen Beuteln 12 angebracht werden. Wahlweise Ist es jedoch auch möglich, die Tragegriffe etwa an dem schlauchförmigen Ausgangsmaterial für die Beutel anzubringen, bevor daraus die einzelnen Beutel 12 hergestellt werden.In Figure 1 is of a plant for the production of bags with handles only a handle docking station 10 is shown, which is perpendicular in the direction to the drawing plane of the bags 12 is passed. In the example shown should be assumed for the sake of simplicity that the handles on the already finished bags 12 are attached. Optional is However, it is also possible to carry the handles on the tubular starting material for the pouches to attach before leaving the individual pouches 12 are manufactured.

Die Griffanlegestation 10 weist eine obere Griffanlegevorrichtung 14 und eine spiegelbildlich dazu ausgebildete untere Griffanlegevorrichtung 16 auf. Die Griffanlegevorrichtungen sind hier nur als Block dargestellt, da ihre Konstruktion als solche bekannt ist.The handle application station 10 has an upper handle application device 14 and one Lower handle attachment device 16 designed as a mirror image of this. The Grip attachments are shown here only as a block because of their construction is known as such.

Den beiden Griffanlegevorrichtungen 14 und 16 ist eine gemeinsame Abrolleinheit 18 zugeordnet, in der ein Ausgangsmaterialstreifen 20 (z.B. Papier) von einer Rolle 22 abgezogen wird. Der Ausgangsmaterialstreifen 20 hat im gezeigten Beispiel eine Breite von etwa 16 cm. Die Rolle 22 hat einen Anfangsdurchmesser von beispielsweise 1 m und ist drehfest auf eine Spindel 24 aufgesteckt, die bremsbar und wahlweise auch antreibbar in einem Antriebsgehäuse 26 (Figur 2) gelagert ist. The two handle application devices 14 and 16 is a common unwinding unit 18 assigned in which a raw material strip 20 (e.g. paper) is withdrawn from a roll 22. The raw material strip 20 has in the example shown a width of about 16 cm. The roller 22 has an initial diameter of 1 m, for example, and is non-rotatable on a spindle 24 attached, which can be braked and optionally also driven in a drive housing 26 (Figure 2) is mounted.

Ein Tänzersystem mit Umlenkwalzen 28 und einer Tänzerwalze 30 wirkt über einen Regler 32 auf die Bremse der Spindel 24, so daß die Zugspannung des Ausgangsmaterialstreifens 20 auf beispielsweise 100 N geregelt wird.A dancer system with deflection rollers 28 and a dancer roller 30 acts via a controller 32 on the brake of the spindle 24, so that the tension of the starting material strip 20 is regulated to 100 N, for example.

Eine der Tänzeranordnung nachgeschaltete Längsschneideinrichtung mit einer Messerrolle 34 und einer Gegenmessertolle 36 teilt den Ausgangsmaterialstreifen 20 längs seiner Mittellinie in zwei parallele Teilstreifen 38, 40 auf, die an Umlenkrollen 42 nach oben bzw. nach unten umgelenkt werden. Der obere Tellstreifen 38 läuft über eine weitere Umlenkrolle 44 zu einem durch zwei Klemmrollen gebildeten Bahnzug 46, dessen Antrieb direkt mit der oberen Griffanlegevorrichtung 14 gekoppelt ist, so daß der Teilstreifen 38 bedarfsgerecht zugeführt werden kann. In der oberen Griffanlegevorrichtung 14 wird der Teilstreifen 38 dann zu U-förmig gefalteten Tragegriffen 48 weiter verarbeitet, die auf die Oberseite jedes Beutels 12 aufgeklebt werden, wie in Figur 2 zu erkennen ist.A longitudinal cutting device downstream of the dancer arrangement with a Knife roll 34 and a counter knife roll 36 divide the raw material strip 20 along its center line into two parallel partial strips 38, 40, which are deflected upwards or downwards on deflection rollers 42. Of the upper tell strip 38 runs through a further deflection roller 44 to one two pinch rollers formed web train 46, the drive directly with the upper Handle application device 14 is coupled so that the partial strip 38 as required can be supplied. In the upper handle application device 14 the partial strip 38 then continues to form U-shaped handles 48 processed, which are glued to the top of each bag 12, as in Figure 2 can be seen.

In entsprechender Weise wird der untere Teilstreifen 40 in der unteren Griffanlegevorrichtung 16 zu Tragegriffen verarbeitet, die an der (in Figur 2 nicht erkennbaren) unteren Wand jedes Beutels 12 angebracht werden. Die beiden Griffanlegevorrichtungen 14 und 16 arbeiten synchron.Correspondingly, the lower partial strip 40 is in the lower one Handle application device 16 processed to carry handles, which on the (in Figure 2 undetectable) bottom wall of each bag 12 can be attached. The two handle application devices 14 and 16 work synchronously.

Für den unteren Teilstreifen 40 ist jedoch ein Bahnzug 50 vorgesehen, der unabhängig von der unteren Griffanlegevorrichtung 16 durch einen Motor 52 angetrieben wird. Die Geschwindigkeit des Motors 52 wird durch einen Regler 54 geregelt, der mit Hilfe einer Meßrolle 56 die Zugspannung des unteren Teilstreifens 40 abtastet. Die Zugspannung des Teilstreifens 40 wird auf diese Weise auf einen konstanten Wert (im beschriebenen Beispiel 50 N) geregelt, der genau der Hälfte der Zugspannung des Ausgangsmaterialstreifens 20 entspricht.However, a web train 50 is provided for the lower partial strip 40 independent of the lower handle application device 16 by a motor 52 is driven. The speed of the motor 52 is controlled by a controller 54 regulated, the tension of the lower by means of a measuring roller 56 Partial strip 40 scans. The tensile stress of the partial strip 40 is on regulated in this way to a constant value (50 N in the example described), exactly half the tensile stress of the raw material strip 20 corresponds.

Die Differenz zwischen der Zugspannung des Ausgangsmaterialstreifens 20 und der Zugspannung des Teilstreifens 40 ist die Zugspannung des anderen Teilstreifens 38. Durch das beschriebene Regelsystem wird somit sichergestellt, daß die beiden Teilstreifen 38 und 40 stets dieselbe Zugspannung haben und es somit nicht zu einem Verzug des Ausgangsmaterialstreifens vor der Längsschneideinrichtung 34, 36 kommt. Da beide Teilstreifen 38, 40 somit auch dieselbe Geschwindigkeit haben, wird auch der untere Teilstreifen 40 bedarfsgerecht der unteren Griffanlegevorrichtung 16 zugeführt, ohne daß geringfügige konstruktionsbedingte Unterschiede zwischen den beiden Griffanlegevorrichtungen 14, 16 zu einer Akkumulation von Zugspannungsunterschieden führen.The difference between the tension of the raw material strip 20 and the tension of the sub-strip 40 is the tension of the other Partial strip 38. The control system described thus ensures that the two partial strips 38 and 40 always have the same tension and thus there is no distortion of the raw material strip the slitter 34, 36 comes. Since both partial strips 38, 40 thus the lower strip will also have the same speed 40 fed to the lower handle application device 16 as needed, without slight design-related differences between the two handle application devices 14, 16 to an accumulation of tension differences to lead.

Das oben beschriebene Ausführungsbeispiel kann auf vielfältige Weise abgewandelt werden. Beispielsweise ist es möglich, den Ausgangsmaterialstreifen 20 in mehr als zwei Teilstreifen aufzuteilen, wenn an einem Beutel mehr als zwei Tragegriffe angebracht werden sollen oder wenn jeder Tragegriff aus mehreren getrennten Streifen besteht. In diesem Fall ist der Bahnzug für einen Teilstreifen mit der zugehörigen Griffanlegevorrichtung gekoppelt, und die Bahnzüge für die anderen Teilstreifen werden geregelt, wie oben für den Teilstreifen 40 beschrieben wurde. Das Zugspannungsverhältnis ist dabei von der Anzahl der Teilstreifen und, falls die Teilstreifen unterschiedliche Breiten aufweisen, auch vom Breitenverhältnis abhängig.The embodiment described above can be modified in a variety of ways will. For example, it is possible to use the raw material strip 20 to be divided into more than two partial strips if more than one on a bag two handles are to be attached or when each handle is off consists of several separate strips. In this case the train is for one Partial strips coupled with the associated handle application device, and the trains for the other sub-strips are regulated as for the above Partial strip 40 has been described. The tension ratio is from the number of partial strips and, if the partial strips are of different widths have, also depending on the width ratio.

Claims (7)

Verfahren zur Herstellung von Beuteln (12) mit Tragegriffen (48), bei dem das Ausgangsmaterial für die Tragegriffe als Endlosmaterial zugeführt wird und mindestens zwei Tragegriffe an Jedem fertigen oder noch unfertigen Beutel angebracht werden, dadurch gekennzeichnet, daß das Ausgangsmaterial für die mehreren zu einem Beutel (12) gehörenden Tragegriffe (48) zunächst in der Form eines einzigen Materialstreifens (20) zugeführt wird, der dann kontinuierlich in mehrere parallele Teilstreifen (38, 40) für die einzelnen Tragegriffe aufgeteilt wird.Process for the production of bags (12) with carrying handles (48), in which the starting material for the carrying handles is fed in as an endless material and at least two carrying handles are attached to each finished or unfinished bag, characterized in that the starting material for the several is combined into one Carrying handles (48) belonging to bags (12) are first fed in the form of a single material strip (20), which is then continuously divided into several parallel partial strips (38, 40) for the individual carrying handles. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Zugspannung des Ausgangsmaterialstreifens (20) geregelt wird, daß die Einzugsgeschwindigkeit für einen Teilstreifen (38) durch die Arbeitsgeschwindigkeit einer zugehörigen Griffanlegevorrichtung (14) bestimmt wird und daß die Zugspannung des oder der anderen Teilstreifen (40) auf einen Wert geregelt wird, der in einem vorgegebenen Verhältnis zur Zugspannung des Ausgangsmaterialstreifens (20) steht.Method according to Claim 1, characterized in that the tensile stress of the starting material strip (20) is regulated, that the pulling-in speed for a partial strip (38) is determined by the working speed of an associated handle application device (14) and that the tensile stress of the other partial strip (s) (40 ) is regulated to a value which is in a predetermined ratio to the tensile stress of the starting material strip (20). Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 oder 2, mit wenigstens zwei synchron arbeitenden Griffanlegevorrichtungen (14, 16), dadurch gekennzeichnet, daß den Griffanlegevorrichtungen eine gemeinsame Abrolleinheit (18) zugeordnet ist, mit der ein Ausgangsmaterialstreifen (20) von einer Rolle (22) abgezogen wird, und daß der Abrolleinheit eine Längsschneideinrichtung (34, 36) nachgeschaltet ist, die den Ausgangsmaterialstreifen (20) in mehrere parallele Teilstreifen (38, 40) aufteilt, die jeweils einer der Griffanlegevorrichtungen (14, 16) zugeführt werden.Device for carrying out the method according to claim 1 or 2, with at least two synchronously operating handle application devices (14, 16), characterized in that the handle application devices are assigned a common unrolling unit (18) with which a starting material strip (20) from a roll (22 ) is pulled off, and that the unwinding unit is followed by a longitudinal cutting device (34, 36) which divides the starting material strip (20) into a plurality of parallel partial strips (38, 40), each of which is fed to one of the handle application devices (14, 16). Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Längsschneideinrichtung (34, 36) eine Einrichtung (30, 32) zur Regelung der Zugspannung des Ausgangsmaterialstreifens (20) vorgeschaltet ist.Device according to claim 3, characterized in that the longitudinal cutting device (34, 36) is preceded by a device (30, 32) for regulating the tensile stress of the starting material strip (20). Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Regeleingriff über eine Bremse oder einen Antrieb für eine die Rolle (22) tragende Spindel (24) erfolgt. Apparatus according to claim 4, characterized in that the control intervention takes place via a brake or a drive for a spindle (24) carrying the roller (22). Vorrichtung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß der Antrieb eines Bahnzugs (46) zum Zuführen eines Teilstreifens (38) zu einer der Griffanlegevorrichtungen (14) direkt mit dieser Griffanlegevorrichtung gekoppelt ist.Device according to one of claims 3 to 5, characterized in that the drive of a web tension (46) for feeding a partial strip (38) to one of the handle application devices (14) is directly coupled to this handle application device. Vorrichtung nach den Ansprüchen 4 und 6, dadurch gekennzeichnet, daß ein oder mehrere Bahnzüge (50) zum Zuführen des oder der übrigen Teilstreifen (40) zu den übrigen Griffanlegevorrichtungen (16) jeweils gesondert durch einen Motor (52) antreibbar sind, deren Geschwindigkeit zugspannungsabhängig regelbar ist.Device according to claims 4 and 6, characterized in that one or more web trains (50) for feeding the one or more partial strips (40) to the other handle application devices (16) can each be driven separately by a motor (52), the speed of which depends on the tension is adjustable.
EP96115023A 1996-09-19 1996-09-19 Method and apparatus for making bags with handles Expired - Lifetime EP0830937B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE59608564T DE59608564D1 (en) 1996-09-19 1996-09-19 Method and device for producing bags with handles
ES96115023T ES2170188T3 (en) 1996-09-19 1996-09-19 PROCEDURE AND APPARATUS FOR THE MANUFACTURE OF BAGS WITH TRANSPORTATION HANDLES.
AT96115023T ATE211681T1 (en) 1996-09-19 1996-09-19 METHOD AND DEVICE FOR PRODUCING BAGS WITH CARRY HANDLES
EP96115023A EP0830937B1 (en) 1996-09-19 1996-09-19 Method and apparatus for making bags with handles
JP19925597A JP3774545B2 (en) 1996-09-19 1997-07-09 Method and apparatus for manufacturing a bag with a carrying handle
US08/893,905 US5980441A (en) 1996-09-19 1997-07-11 Method and apparatus for producing bags with carrying handles by using a feedback tension control loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96115023A EP0830937B1 (en) 1996-09-19 1996-09-19 Method and apparatus for making bags with handles

Publications (2)

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EP0830937A1 true EP0830937A1 (en) 1998-03-25
EP0830937B1 EP0830937B1 (en) 2002-01-09

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EP96115023A Expired - Lifetime EP0830937B1 (en) 1996-09-19 1996-09-19 Method and apparatus for making bags with handles

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US (1) US5980441A (en)
EP (1) EP0830937B1 (en)
JP (1) JP3774545B2 (en)
AT (1) ATE211681T1 (en)
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ES (1) ES2170188T3 (en)

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DE10261256B4 (en) * 2002-12-20 2004-11-11 Windmöller & Hölscher Kg Bottoming device
JP2015003401A (en) * 2013-06-19 2015-01-08 セイコーエプソン株式会社 Transportation device, printer and transportation method
CN104494205A (en) * 2014-12-05 2015-04-08 浙江正威机械有限公司 High-speed type packaging bag double-layered handle material pulling rotary mechanism
FR3042436B1 (en) * 2015-10-16 2017-11-17 Holweg Group METHOD AND MACHINE FOR MANUFACTURING A BAG COMPRISING HANDLES

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Also Published As

Publication number Publication date
DE59608564D1 (en) 2002-02-14
ATE211681T1 (en) 2002-01-15
US5980441A (en) 1999-11-09
JPH10100290A (en) 1998-04-21
ES2170188T3 (en) 2002-08-01
EP0830937B1 (en) 2002-01-09
JP3774545B2 (en) 2006-05-17

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