EP0920984B1 - Device for manufacturing handle bag made of a thermoplastic foil - Google Patents

Device for manufacturing handle bag made of a thermoplastic foil Download PDF

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Publication number
EP0920984B1
EP0920984B1 EP98117819A EP98117819A EP0920984B1 EP 0920984 B1 EP0920984 B1 EP 0920984B1 EP 98117819 A EP98117819 A EP 98117819A EP 98117819 A EP98117819 A EP 98117819A EP 0920984 B1 EP0920984 B1 EP 0920984B1
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EP
European Patent Office
Prior art keywords
film strip
drive
film
strip
case
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Expired - Lifetime
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EP98117819A
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German (de)
French (fr)
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EP0920984A2 (en
EP0920984A3 (en
Inventor
Hans Bert Wuits
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Lemo Maschinenbau GmbH
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Lemo Maschinenbau GmbH
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Publication of EP0920984A3 publication Critical patent/EP0920984A3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00Making flexible containers, e.g. envelopes or bags
    • B31B70/74Auxiliary operations
    • B31B70/86Forming integral handles or mounting separate handles
    • B31B70/864Mounting separate handles on bags, sheets or webs
    • B31B70/87Applying handles on one side of a moving longitudinally folded web, e.g. after cutting a tubular web longitudinally; Applying handles on both sides of a moving web and folding this web longitudinally afterwards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00Shape of flexible containers
    • B31B2160/10Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents

Definitions

  • the invention relates to a device for producing a carrier bag thermoplastic film with one on at least one of the pocket walls attached, designed as a handle loop handle made of thermoplastic Plastic film with a driven by a drive device, the ends of a the film strip forming gripping handle and towards the carrier bag body folding feeder and one of the ends of the handle with the Pocket wall firmly connecting welding device.
  • the device includes one of the ends of a film strip forming the carrying handle and gripping towards the carrying bag body folding feeder with two swivel arms, one each End of the film strip are assigned.
  • the swing arms are essentially one pivotable through 90 ° perpendicular to the plane of the film strip mounted to move back and forth and each have a clamping element for Clamp the respective end area of the film strip.
  • FR 2 576 246-A Another feed device for film strips serving as handles at Manufacture of carrier bags with handles is known from FR 2 576 246-A.
  • the swivel arms can be swiveled by 90 ° on a bearing plate. attached by means of a cylinder in the direction of that forming the carrier bags Plastic sheet is movable. To turn around when moving forward 90 °, the swivel arms are in a corresponding link guide guided.
  • the invention has for its object a device of the type mentioned to create a faster and safer feeder for the formation of loop-shaped Foil strips used for carrying handles and thus longer welding times or an increase in machine performance.
  • the loop handles by folding the strip ends form and securely attach to the bag body.
  • crank rod with the drive device in Connection
  • a servo drive designed as a primary drive having a first drive means with a on a main drive shaft seated drive wheel is connected to the coaxial one on the main drive shaft seated intermediate wheel is arranged, which has a further drive means with planet wheels is in drive connection, the crank pin for articulation of the one Have ends of the crank rods.
  • the device according to the invention is for attachment to both pocket walls provided handles to be attached. Therefore, the crank rods are useful in pairs in each case above and below a double-layered, in essentially at right angles to the direction of movement of the plastic film forming the carrier bags Movable film strip track arranged.
  • the double-layer film strip between a fixed Upper knife and a movably arranged lower knife of a strip cutting device passes through can be cut from the film strip Cut two strips of film each corresponding to a handle.
  • the device shown in Figures 1 and 2 for producing a carrier bag made of thermoplastic plastic film has a feed device 1 and a drive device 2 on.
  • the strip film 3 becomes one
  • An essentially horizontal one serves to guide the film strip 13 arranged guide plate 14 and lateral guide plates 15, 16 fastened thereon.
  • a guide table 20 (FIG.
  • the actual feed device 1 has above and below the strip film web 3 pivot arms 23 each arranged in pairs, which are essentially identical are trained so that only one is described in detail below.
  • everyone Swivel arm 23 is about a substantially vertical to the plane of movement
  • Strip film web 3 extending axis 24 pivotally mounted. The swivel movement takes place essentially between one lying in the area of the film strip 13 first pivot position I and a substantially 90 ° offset to it second swivel position II.
  • each are at the free ends of the swivel arms 23 Clamping elements in the form of clamping stamps lying on both sides of the strip of film 3 25, 27 provided, the upper clamp 25 by means of a essentially coaxially arranged adjusting cylinder 26 in the vertical direction can be raised and lowered, while the lower clamp 27 in the height is not adjustable.
  • the adjusting cylinder 26 can in the first Pivotal position I create a clamping effect, as a result of in the guide plate 14 arranged, corresponding to the pivoting movement of the pivot arms 23rd curved and in the area of the first swivel position of the swivel arms laterally open guide recesses 28 between the upper clamp 25 and the lower clamp 27 of the film strips 13 are clamped directly can.
  • the ends of the film strip 13 in the actual handle position flipped, in which the legs 21 of the handle 18 in run essentially parallel to one another, with a weld, for example an oval weld 29 using the welding device shown in Figure 2 31 can be connected to the pocket wall.
  • the welding device consists of known manner from an upper welding head 32 and a lower welding head 33rd
  • the feed device 1 is in each case via a Crank rod 34 connected to the drive device 2.
  • the drive device 2 itself has a drive motor 35 designed as a servo drive, which has a first drive means 36 communicates with a main drive wheel 37 which is on a main drive shaft 38 is seated. A coaxially sits on the main drive shaft 38 Intermediate wheel 39, which has a further drive means 41 with planet wheels 42, 43, 44 in Connection is established, crank pins 45 being arranged on the planet wheels 42, 43, at which each one ends of the crank rods 34 are articulated, with their engage the other end in an articulated manner on the swivel arms 23 via a joint 46.
  • This separated film strip then lies, as can be seen from the drawings, in the region of the guide plate 14 first in the area of the swivel position I of the feed device 1.
  • the clamp 25, 27 are brought into their clamping position, d. H. the upper clamp 25 is moved down by the adjusting cylinder 26. the the lower clamping punch 27 is always in the arcuate guide recess 28 held so that the upper clamp 25 on the lower clamp 27th can be driven.
  • a section of film is corresponding the width of a carrier bag wall has been moved into the receiving position.
  • the drive device 2 and the crank rods 34 respectively move the swivel arms 23 from their swivel position I into the swivel position II, the legs 21 of the grip loops 18 in the dashed lines in Figure 1 shown location.
  • the welding device 31 then passes through Moving the welding heads 32, 33 a corresponding weld, z. Legs Oval weld 29 reached. So that z. B. on the inside of the pocket wall subsequent welding does not cause the grip loops to stick together the ends of the legs painted with a release agent.
  • the invention is not limited to the carrying handles be welded on. Rather, without leaving the core of the invention, the carrying handles are also attached to the pocket wall by gluing.

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Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Herstellen einer Tragetasche aus thermoplastischer Kunststoffolie mit einem an wenigstens einer der Taschenwandungen angebrachten, als Griffschlaufe ausgebildeten Traggriff aus thermoplastischer Kunststoffolie mit einer durch eine Antriebseinrichtung angetriebenen, die Enden eines den Traggriff bildenden Folienstreifens ergreifenden und in Richtung zum Tragetaschenkörper umlegenden Zuführeinrichtung sowie einer die Enden des Traggriffs mit der Taschenwandung fest verbindenden Schweißeinrichtung.The invention relates to a device for producing a carrier bag thermoplastic film with one on at least one of the pocket walls attached, designed as a handle loop handle made of thermoplastic Plastic film with a driven by a drive device, the ends of a the film strip forming gripping handle and towards the carrier bag body folding feeder and one of the ends of the handle with the Pocket wall firmly connecting welding device.

Aus der deutschen Offenlegungsschrift 36 34 238 sind verschiedene Verfahren zum Befestigen einer Griffschlaufe aus thermoplastischer Kunststoffolie an einer Tragetasche bekanntgeworden. Die jeweilige Griffschlaufe wird dabei in Gestalt eines Streifens auf eine Flachbahn aufgebracht und der Streifen an seinen beiden Enden mit dieser Flachbahn fest verbunden. Danach wird die Flachbahn derart nach außen zu einem Halbschlauch umgeschlagen, daß die Streifen außen liegen und dann der Halbschlauch durch Querabschweißungen zu der Tragetasche gebildet wird. Bei einer bestimmten Ausführungsform einer solchen Tragetasche (Figur 29 bis 31) werden aus dem Folienstreifen bogenförmig abgewinkelte Schlaufengriffe gebildet, die mit ihren Schenkeln an der Außenwandung der Tragetasche befestigt sind. Aus der oben genannten Schrift ist nicht ersichtlich, wie im einzelnen aus den Folienstreifen bogenförmig gestaltete Griffe erzeugt werden.From the German published patent application 36 34 238, various methods for Attach a handle loop made of thermoplastic plastic film to a carrier bag known. The respective handle loop is in the form of a strip applied a flat sheet and the strip at both ends with this Flat track firmly connected. Thereafter, the flat web becomes one outwards Half hose folded over so that the strips are on the outside and then the half hose is formed by transverse welds to the carrier bag. At a certain Embodiment of such a carrier bag (Figures 29 to 31) are from the Foil strips of arched angled loop handles formed with their Legs are attached to the outer wall of the carrier bag. From the above Scripture mentioned is not apparent, as in detail from the film strips arched designed handles are generated.

In der Praxis hat sich ein Verfahren herausgebildet, wonach die Griffschlaufen mittels eines verstellbaren Stempels an die Mutterfolie herangebracht und dort befestigt, beispielsweise angeschweißt werden. Eine derartige Befestigung ist recht ungünstig, da hohe Massen beschleunigt und abgebremst werden müssen. Die Taktzahl einer derartigen Einrichtung ist vergleichsweise gering. In practice, a method has emerged, according to which the handle loops by means of an adjustable stamp brought up to the mother foil and attached there, for example, are welded on. Such attachment is quite unfavorable because high masses must be accelerated and braked. The number of bars such facility is comparatively small.

Aus dem US-Patent 3,713,940 ist eine Vorrichtung zum Herstellen einer Tragetasche mit Tragegriffen der gattungsgemäßen Art bekannt. Die Vorrichtung enthält eine die Enden eines den Traggriff bildenden Folienstreifen ergreifende und in Richtung zum Tragetaschenkörper umlegende Zuführeinrichtung mit zwei Schwenkarmen, die jeweils einem Ende des Folienstreifens zugeordnet sind. Die Schwenkarme sind um eine im wesentlichen senkrecht zur Ebene des Folienstreifens verlaufenden Achse um 90° schwenkbeweglich hin- und her bewegbar gelagert und weisen jeweils ein Klemmelement zum Einklemmen des jeweiligen Endbereiches des Folienstreifens auf. Als Antrieb für die Schwenkbewegung dient eine Zahnstange, die in ein Ritzel eingreift, das konzentrisch zur Schwenkachse an dem anderen Ende des Schwenkarmes befestigt ist.From US Pat. No. 3,713,940 there is a device for producing a carrying bag Handles of the generic type known. The device includes one of the ends of a film strip forming the carrying handle and gripping towards the carrying bag body folding feeder with two swivel arms, one each End of the film strip are assigned. The swing arms are essentially one pivotable through 90 ° perpendicular to the plane of the film strip mounted to move back and forth and each have a clamping element for Clamp the respective end area of the film strip. As a drive for the A rack and pinion that engages in a pinion that is concentric to the pivoting movement Swivel axis is attached to the other end of the swivel arm.

Eine weitere Zuführeinrichtung für als Traggriffe dienende Folienstreifen bei der Herstellung von Tragetaschen mit Traggriffen ist aus der FR 2 576 246-A bekannt. Bei dieser Vorrichtung sind die um 90° schwenkbaren Schwenkarme an einer Lagerplatte. befestigt, die mittels eines Zylinders in Richtung zu der die Tragetaschen bildenden Kunststoffolienbahn bewegbar ist. Um bei der Vorwärtsbewegung die Schwenkung um 90° zu bewirken, sind die Schwenkarme in einer entsprechenden Kulissenführung geführt.Another feed device for film strips serving as handles at Manufacture of carrier bags with handles is known from FR 2 576 246-A. at In this device, the swivel arms can be swiveled by 90 ° on a bearing plate. attached by means of a cylinder in the direction of that forming the carrier bags Plastic sheet is movable. To turn around when moving forward 90 °, the swivel arms are in a corresponding link guide guided.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die eine schnellere und sichere Zuführung von zur Bildung von schlaufenförmigen Traggriffen dienenden Folienstreifen ermöglicht und dadurch längere Schweißzeiten oder eine Erhöhung der Maschinenleistung gewährleistet.The invention has for its object a device of the type mentioned to create a faster and safer feeder for the formation of loop-shaped Foil strips used for carrying handles and thus longer welding times or an increase in machine performance.

Diese Aufgabe wird mit den Merkmalen des Patentanspruches 1 gelöst.This object is achieved with the features of claim 1.

Mit den Mitteln nach der Erfindung ist es auf verhältnismäßig einfache Art und Weise möglich, relativ schnell und sehr genau Folienstreifen in gewünschter Ausrichtung dem Taschenkörper zuzuführen, die Schlaufengriffe durch Umlegen der Streifenenden zu bilden und sicher an dem Taschenkörper zu befestigen.With the means according to the invention, it is in a relatively simple manner possible, relatively quickly and very precisely film strips in the desired orientation Feed bag body, the loop handles by folding the strip ends form and securely attach to the bag body.

Zu einer sicheren und schnellen Zuführung des Folienstreifens trägt vor allem bei, daß jeder Schwenkarm über eine zugehörige Kurbelstange mit der Antriebseinrichtung in Verbindung steht, die vorzugsweise einen als Primärantrieb ausgebildeten Servoantrieb aufweist, der über ein erstes Antriebsmittel mit einem auf einer Hauptantriebswelle sitzenden Antriebsrad verbunden ist, zu dem koaxial ein auf der Hauptantriebswelle sitzendes Zwischenrad angeordnet ist, das über ein weiteres Antriebsmittel mit Umlaufrädern in Antriebsverbindung steht, die Kurbelzapfen zur Anlenkung der jeweils einen Enden der Kurbelstangen aufweisen.Above all, that contributes to a safe and rapid feeding of the film strip each swivel arm via an associated crank rod with the drive device in Connection is established, which is preferably a servo drive designed as a primary drive having a first drive means with a on a main drive shaft seated drive wheel is connected to the coaxial one on the main drive shaft seated intermediate wheel is arranged, which has a further drive means with planet wheels is in drive connection, the crank pin for articulation of the one Have ends of the crank rods.

Die erfindungsgemäße Vorrichtung ist zur Befestigung von an beiden Taschenwandungen zu befestigenden Traggriffen vorgesehen. Daher sind zweckmäßigerweise die Kurbelstangen jeweils paarweise jeweils oberhalb und unterhalb einer doppellagigen, im wesentlichen rechtwinklig zur Bewegungsrichtung der Tragetaschen bildenden Kunststoffolienbahn bewegbaren Folienstreifenbahn angeordnet. The device according to the invention is for attachment to both pocket walls provided handles to be attached. Therefore, the crank rods are useful in pairs in each case above and below a double-layered, in essentially at right angles to the direction of movement of the plastic film forming the carrier bags Movable film strip track arranged.

Wenn man dann die doppellagige Folienstreifenbahn zwischen einem feststehenden Obermesser und einem beweglich angeordneten Untermesser einer Streifenschneideinrichtung hindurchführt, lassen sich mit einem Schneidvorgang von der Folienstreifenbahn zwei jeweils einem Traggriff entsprechende Folienstreifen abschneiden.If you then the double-layer film strip between a fixed Upper knife and a movably arranged lower knife of a strip cutting device passes through, can be cut from the film strip Cut two strips of film each corresponding to a handle.

Damit die Folienstreifenbahn bei der Bildung des Traggriffs sicher und exakt gehalten wird, weist eine unmittelbar vor einer gegebenenfalls mit Führungsblechen für den jeweils abgetrennten Folienstreifen ausgerüstete Führungsplatte entsprechend der Schwenkbewegung der Schwenkarme bogenförmig gestaltete, im Bereich der ersten Schwenkstellung der Schwenkarme seitlich offene Führungsausnehmungen auf. Diese Führungsausnehmungen arbeiten mit den Klemmelementen zusammen, die zu diesem Zweck jeweils als oberer und unterer Klemmstempel ausgebildet sind, wobei der untere, in der Höhe nicht verstellbare Klemmstempel mit seinem nach oben weisenden freien Ende durch die jeweils zugehörige Führungsausnehmung hindurchgeführt ist und der obere Klemmstempel in der Höhe verstellbar ausgebildet ist.So that the strip of film is held securely and precisely when the handle is formed will have one immediately in front of one, possibly with guide plates for the each separated film strip equipped guide plate according to the Swivel movement of the swivel arms designed in an arc shape, in the area of the first Swivel position of the swivel arms on laterally open guide recesses. This Guide recesses work together with the clamping elements that lead to this Purpose are each designed as an upper and lower clamping stamp, the lower, Clamping stamp, which is not adjustable in height, with its upward-facing free stamp End is passed through the associated guide recess and the upper clamp is adjustable in height.

Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden im einzelnen erläutert. Es zeigen:

Figur 1
eine Aufsicht auf eine Zuführeinrichtung, wobei bestimmte Bauteile der Deutlichkeit halber weggelassen sind und
Figur 2
einen der Figur 1 entsprechende, teilweise geschnittene Seitenansicht, wobei jedoch der Deutlichkeit halber wiederum einzelne Bauteile fortgelassen sind.
A preferred embodiment of the invention is shown schematically in the drawing and is explained in detail below. Show it:
Figure 1
a top view of a feeder, certain components are omitted for clarity and
Figure 2
a partially sectioned side view corresponding to Figure 1, but for the sake of clarity individual components are omitted.

Die in den Figuren 1 und 2 dargestellte Vorrichtung zum Herstellen einer Tragetasche aus thermoplastischer Kunststoffolie weist eine Zuführeinrichtung 1 und eine Antriebseinrichtung 2 auf. Eine Streifenfolienbahn 3, die gemäß Figur 2 aus einer oberen Bahnlage 4 und einer unteren Bahnlage 5 aus thermoplastischer Kunststoffolie gebildet ist, kann jeweils über eine eigene Abwicklung 6 und 7 abgewickelt werden, und zwar unter Zuhilfenahme eines Vorzugswalzenpaars 8. Die Streifenfolienbahn 3 wird einer Streifenschneideinrichtung 9 zugeführt, die ein feststehendes Obermesser 11 und ein im wesentlichen vertikal bewegliches Untermesser 12 aufweist. Mit Hilfe der Streifenschneideinrichtung 9 kann ein Folienstreifen 13 von der Streifenfolienbahn 3 abgetrennt werden. Zur Führung des Folienstreifens 13 dient eine im wesentlichen horizontal angeordnete Führungsplatte 14 sowie darauf befestigte seitliche Führungsbleche 15, 16. Hinter der Führungsplatte 14 ist ein Führungstisch 20 (Figur 2) angeordnet, auf dem eine im wesentlichen quer zur Bewegungsrichtung der Streifenfolienbahn 3 bewegbare Kunststoffolienbahn 17 geführt ist, aus der die Taschenwandungen einer im einzelnen nicht dargestellten Tragetasche herstellbar sind. An dieser Tragetasche sollen gemäß dem Ausführungsbeispiel auf jeder Seite als Griffschlaufen ausgebildete Traggriffe 18 befestigt werden, die aus einem Griffbereich 19 und jeweils zwei seitlichen Schenkeln 21 bestehen. Damit bei der Bildung der Traggriffe aus dem doppellagigen Folienstreifen 13 die eigentlichen Griffteile beim Umlegen der Schenkel 21 ausweichen können, sind in der Führungsplatte 14 im wesentlichen rechteckförmig ausgebildete Durchtrittsöffnungen 22 vorgesehen.The device shown in Figures 1 and 2 for producing a carrier bag made of thermoplastic plastic film has a feed device 1 and a drive device 2 on. A strip film 3, which according to Figure 2 from an upper Web layer 4 and a lower web layer 5 formed from thermoplastic film is, can be handled via a separate processing 6 and 7, namely with the help of a pair of preferred rollers 8. The strip film 3 becomes one Strip cutting device 9 supplied, which a fixed upper knife 11 and in has substantially vertically movable lower knife 12. With the help of the strip cutter 9, a film strip 13 can be separated from the strip film 3 become. An essentially horizontal one serves to guide the film strip 13 arranged guide plate 14 and lateral guide plates 15, 16 fastened thereon. A guide table 20 (FIG. 2) is arranged behind the guide plate 14, on which one essentially movable transversely to the direction of movement of the strip film 3 Plastic sheet 17 is guided, from which the pocket walls one in detail Carrying bag, not shown, can be produced. According to this carrier bag In the exemplary embodiment, carrying handles 18 designed as grip loops on each side are attached, which consist of a grip area 19 and two lateral legs 21 consist. So that when the carrying handles are formed from the double-layer film strip 13 the actual handle parts can dodge when folding the legs 21 are in of the guide plate 14 has a substantially rectangular passage opening 22 provided.

Die eigentliche Zuführeinrichtung 1 weist oberhalb und unterhalb der Streifenfolienbahn 3 jeweils paarweise angeordnete Schwenkarme 23 auf, die im wesentlichen identisch ausgebildet sind, so daß im folgenden nur einer im einzelnen beschrieben wird. Jeder Schwenkarm 23 ist um eine im wesentlichen vertikal zur Bewegungsebene der Streifenfolienbahn 3 verlaufende Achse 24 schwenkbar gelagert. Die Schwenkbewegung erfolgt im wesentlichen zwischen einer im Bereich des Folienstreifens 13 liegenden ersten Schwenkstellung I und einer im wesentlichen um 90° versetzt dazu liegenden zweiten Schwenkstellung II. Jeweils an den freien Enden der Schwenkarme 23 sind Klemmelemente in Gestalt von beidseitig der Streifenfolienbahn 3 liegenden Klemmstempel 25, 27 vorgesehen, wobei der obere Klemmstempel 25 mit Hilfe eines im wesentlichen gleichachsig angeordneten Verstellzylinders 26 in vertikaler Richtung anhebbar und absenkbar ist, während demgegenüber der untere Klemmstempel 27 in der Höhe unverstellbar ist. Mit Hilfe des Verstellzylinders 26 kann in der ersten Schwenkstellung I eine Klemmwirkung erzeugt werden, da infolge von in der Führungsplatte 14 angeordneten, entsprechend der Schwenkbewegung der Schwenkarme 23 bogenförmig gestalteten und im Bereich der ersten Schwenkstellung der Schwenkarme seitlich offenen Führungsausnehmungen 28 zwischen dem oberen Klemmstempel 25 und dem unteren Klemmstempel 27 der Folienstreifen 13 unmittelbar geklemmt werden kann.The actual feed device 1 has above and below the strip film web 3 pivot arms 23 each arranged in pairs, which are essentially identical are trained so that only one is described in detail below. Everyone Swivel arm 23 is about a substantially vertical to the plane of movement Strip film web 3 extending axis 24 pivotally mounted. The swivel movement takes place essentially between one lying in the area of the film strip 13 first pivot position I and a substantially 90 ° offset to it second swivel position II. Each are at the free ends of the swivel arms 23 Clamping elements in the form of clamping stamps lying on both sides of the strip of film 3 25, 27 provided, the upper clamp 25 by means of a essentially coaxially arranged adjusting cylinder 26 in the vertical direction can be raised and lowered, while the lower clamp 27 in the height is not adjustable. With the help of the adjusting cylinder 26 can in the first Pivotal position I create a clamping effect, as a result of in the guide plate 14 arranged, corresponding to the pivoting movement of the pivot arms 23rd curved and in the area of the first swivel position of the swivel arms laterally open guide recesses 28 between the upper clamp 25 and the lower clamp 27 of the film strips 13 are clamped directly can.

Durch einen entsprechenden Antrieb der Klemmstempel 25, 27 aus der Schwenkstellung I in die oben erwähnte Schwenkstellung II werden die Enden des Folienstreifens 13 in die eigentliche Griffposition umgelegt, in der die Schenkel 21 des Handgriffs 18 im wesentlichen parallel zueinander verlaufen, wobei sie über eine Schweißung, beispielsweise eine Ovalschweißung 29 mit Hilfe der in Figur 2 dargestellten Schweißeinrichtung 31 mit der Taschenwandung verbindbar sind. Die Schweißeinrichtung besteht in bekannter Weise aus einem oberen Schweißkopf 32 und einem unteren Schweißkopf 33.By a corresponding drive of the clamp 25, 27 from the swivel position I in the above-mentioned pivot position II, the ends of the film strip 13 in the actual handle position flipped, in which the legs 21 of the handle 18 in run essentially parallel to one another, with a weld, for example an oval weld 29 using the welding device shown in Figure 2 31 can be connected to the pocket wall. The welding device consists of known manner from an upper welding head 32 and a lower welding head 33rd

Zum Antrieb der Schwenkarme 23 ist die Zuführeinrichtung 1 jeweils über eine Kurbelstange 34 mit der Antriebseinrichtung 2 verbunden. Die Antriebseinrichtung 2 selbst weist einen als Servoantrieb ausgebildeten Antriebsmotor 35 auf, der über ein erstes Antriebsmittel 36 mit einem Hauptantriebsrad 37 in Verbindung steht, das auf einer Hauptantriebswelle 38 sitzt. Koaxial auf der Hauptantriebswelle 38 sitzt ein Zwischenrad 39, das über ein weiteres Antriebsmittel 41 mit Umlaufrädern 42, 43, 44 in Verbindung steht, wobei auf den Umlaufrädern 42, 43 Kurbelzapfen 45 angeordnet sind, an denen jeweils die einen Enden der Kurbelstangen 34 angelenkt sind, die mit ihrem anderen Ende jeweils über ein Gelenk 46 gelenkig an den Schwenkarmen 23 angreifen.To drive the swivel arms 23, the feed device 1 is in each case via a Crank rod 34 connected to the drive device 2. The drive device 2 itself has a drive motor 35 designed as a servo drive, which has a first drive means 36 communicates with a main drive wheel 37 which is on a main drive shaft 38 is seated. A coaxially sits on the main drive shaft 38 Intermediate wheel 39, which has a further drive means 41 with planet wheels 42, 43, 44 in Connection is established, crank pins 45 being arranged on the planet wheels 42, 43, at which each one ends of the crank rods 34 are articulated, with their engage the other end in an articulated manner on the swivel arms 23 via a joint 46.

Die Funktion der Vorrichtung nach der Erfindung ist wie folgt:The function of the device according to the invention is as follows:

Mit Hilfe des Vorzugswalzenpaars 8 werden die Bahnlagen 4, 5 der Streifenfolienbahn 3 diskontinuierlich von den Abwicklungen 6 und 7 abgezogen und so weit vorgezogen, bis ein einem Traggriff 18 entsprechender Folienstreifen 13 durch die Streifenschneideinrichtung 9 von der Folienbahn 3 abgetrennt werden kann. Dieser abgetrennte Folienstreifen liegt dann, wie aus den Zeichnungen ersichtlich, im Bereich der Führungsplatte 14 und zwar zunächst im Bereich der Schwenkstellung I der Zuführeinrichtung 1. In dieser Stellung werden die Klemmstempel 25, 27 in ihre Klemmposition gebracht, d. h. der obere Klemmstempel 25 wird durch den Verstellzylinder 26 nach unten gefahren. der untere Klemmstempel 27 ist ständig in der bogennutförmigen Führungsausnehmung 28 gehalten, so daß der obere Klemmstempel 25 auf den unteren Klemmstempel 27 gefahren werden kann. Gleichzeitig bzw. kurz vorher ist ein Folienabschnitt entsprechend der Breite einer Tragetaschenwandung in die Aufnahmeposition gefahren worden. Nunmehr werden über die Antriebseinrichtung 2 bzw. über die Kurbelstangen 34 jeweils die Schwenkarme 23 aus ihrer Schwenkstellung I in die Schwenkstellung II verfahren, wobei die Schenkel 21 der Griffschlaufen 18 in die in Figur 1 mit strichpunktierten Linien dargestellte Lage gelangen. Danach wird durch die Schweißeinrichtung 31 durch Zusammenfahren der Schweißköpfe 32, 33 eine entsprechende Schweißung, z. B. eine Ovalschweißung 29 erreicht. Damit z. B. die auf der Innenseite der Taschenwandung erfolgende Verschweißung nicht ein Zusammenkleben der Griffschlaufen bewirkt, sind die Enden der Schenkel mit einem Trennmittel lackiert. Nach dem Schweißvorgang wird der obere Klemmstempel 25 durch den Verstellzylinder 26 nach oben verfahren, so daß die Klemmwirkung aufgehoben wird. Die mit Traggriffen versehene Tragetasche kann in nicht dargestellter Weise in eine Abgabeposition gebracht werden. Danach fahren die Schwenkarme 23 mit den Klemmstempeln 25, 27 in die Schwenkstellung I zurück und der Vorgang wiederholt sich.With the help of the preferred roller pair 8, the web layers 4, 5 of the strip film web 3 deducted discontinuously from developments 6 and 7 and brought forward until a film strip 13 corresponding to a carrying handle 18 through the strip cutting device 9 can be separated from the film web 3. This separated film strip then lies, as can be seen from the drawings, in the region of the guide plate 14 first in the area of the swivel position I of the feed device 1. In this Position the clamp 25, 27 are brought into their clamping position, d. H. the upper clamp 25 is moved down by the adjusting cylinder 26. the the lower clamping punch 27 is always in the arcuate guide recess 28 held so that the upper clamp 25 on the lower clamp 27th can be driven. At the same time or shortly before, a section of film is corresponding the width of a carrier bag wall has been moved into the receiving position. Now the drive device 2 and the crank rods 34 respectively move the swivel arms 23 from their swivel position I into the swivel position II, the legs 21 of the grip loops 18 in the dashed lines in Figure 1 shown location. The welding device 31 then passes through Moving the welding heads 32, 33 a corresponding weld, z. Legs Oval weld 29 reached. So that z. B. on the inside of the pocket wall subsequent welding does not cause the grip loops to stick together the ends of the legs painted with a release agent. After the welding process move the upper clamp 25 through the adjusting cylinder 26 upwards, so that the clamping effect is released. The carrying bag with handles can be in not shown are brought into a delivery position. Then they drive Swivel arms 23 with the clamps 25, 27 back into the swivel position I and the process is repeated.

Es versteht sich, daß die Erfindung nicht nur darauf beschränkt ist, daß die Traggriffe angeschweißt werden. Vielmehr kann, ohne daß der Kern der Erfindung verlassen wird, eine Befestigung der Traggriffe an der Taschenwandung auch durch Verkleben erfolgen.It is understood that the invention is not limited to the carrying handles be welded on. Rather, without leaving the core of the invention, the carrying handles are also attached to the pocket wall by gluing.

Claims (8)

  1. Apparatus for producing a carrier bag from thermoplastic film having a carry handle, which is arranged on at least one of the bag walls, is designed as a handle loop and is made from thermoplastic film, having a feed device (1), which is driven by a drive device, takes hold of the ends of a film strip (13) which forms the carry handle and folds them over towards the carrier bag body, and a welding device (31), which fixedly joins the ends of the carry handle to the bag wall, the feed device (1) having a pivot arm (23), which is in each case assigned to one end of the film strip (3) which forms the carry handle (18) and is mounted in such a way that it can be moved to and fro, pivoting about an axis (24) running substantially perpendicular to the plane of the film strip (31), between a first pivoted position (I), which lies in the region of the film strip, and a second pivoted position (II), which is offset by substantially 90° with respect to the first pivoted position, and in each case has a clamping element (25, 27), which is assigned to the corresponding end region of the film strip (13) or of the carry handle (18) and can be moved into a clamping position in the first pivoted position (I) of the pivot arm (23) and into a release position in the second pivoted position (II) of the pivot arm (23), characterized in that each pivot arm (23) is connected, via an associated crank rod (34), to the drive device (2), the pivot arms (23), the clamping elements (25, 27) and the crank rods (34) in each case being arranged in pairs above and below a double-layer film strip web (3) which can move substantially at right angles to the direction of movement of the plastic film web (17) which forms carrier bags.
  2. Apparatus according to Claim 1, characterized in that the drive device (2) has a servo drive (35), which is designed as primary drive and is connected, via a first drive means (36), to a drive wheel (37), which is seated on a main drive shaft (38) and coaxially with which there is arranged an intermediate wheel (39), which is seated on the main drive shaft (38) and is drive-connected, via a further drive means (41), to rotary wheels (42, 43, 44), the rotary wheels (42, 43) having crank journals (45) for articulating in each case one end of the crank rods (34).
  3. Apparatus according to Claim 1 or 2, characterized in that the film strip web (3) can be guided through between a stationary upper blade (11) and a movably arranged lower blade (12) of a strip-cutting device (9), and in that the latter device can in each case cut a film strip (13) which corresponds to a carrying handle (18) off the film strip web (3).
  4. Apparatus according to Claim 3, characterized in that the upper and lower blades (11, 12) of the strip-cutting device (9) are arranged directly in front of a guide plate (14) which may optionally be equipped with metal guide sheets (15, 16) for the film strip (13) which has in each case been severed.
  5. Apparatus according to Claim 4, characterized in that the guide plate (14) has guide recesses (28) which are configured in arcuate form corresponding to the pivoting movement of the pivot arms (23) and are laterally open in the region of the first pivoting position (I) of the pivot arms (23).
  6. Apparatus according to Claim 5, characterized in that the clamping elements of the pivot arms (23) are in each case formed as upper and lower clamping rams (25, 27), the upwardly facing free end of the lower clamping ram (27), the height of which cannot be adjusted, being guided through in each case the associated guide recess (28) in the guide plate (14), and the upper clamping ram (25) being designed such that its height can be adjusted.
  7. Apparatus according to Claim 6, characterized in that there is an adjustment cylinder (26), which is arranged on substantially the same axis, for adjusting the height of the upper clamping ram (25).
  8. Apparatus according to one or more of Claims 4 to 7, characterized in that one or more passage openings (22) are provided in the guide plate (14) in the region of the handle region (19) of the carrying handles (18).
EP98117819A 1997-12-05 1998-09-19 Device for manufacturing handle bag made of a thermoplastic foil Expired - Lifetime EP0920984B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19753911A DE19753911A1 (en) 1997-12-05 1997-12-05 Device for producing a carrier bag made of thermoplastic film
DE19753911 1997-12-05

Publications (3)

Publication Number Publication Date
EP0920984A2 EP0920984A2 (en) 1999-06-09
EP0920984A3 EP0920984A3 (en) 2001-06-27
EP0920984B1 true EP0920984B1 (en) 2004-04-14

Family

ID=7850798

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117819A Expired - Lifetime EP0920984B1 (en) 1997-12-05 1998-09-19 Device for manufacturing handle bag made of a thermoplastic foil

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EP (1) EP0920984B1 (en)
DE (2) DE19753911A1 (en)
ES (1) ES2218738T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112477287B (en) * 2020-11-27 2022-08-16 江西捷美软包装有限公司 Automatic deviation-rectifying and punching device of bag making machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713940A (en) * 1970-05-01 1973-01-30 Gordon Haugh Packaging Co Ltd Method for securing handles to sheet material
US4133252A (en) * 1976-05-11 1979-01-09 Ernest Eckstein Method and apparatus for securing carrying handles to bags
FR2576246B1 (en) * 1985-01-24 1987-04-10 Fayard Ravel Ets DEVICE FOR FIXING CROSS HANDLES ON THE LONGITUDINAL EDGES OF A HALF SHEATH IN INTERMITTENTLY MOVING
IT1192025B (en) * 1986-05-02 1988-03-31 Wrapmatic Spa DEVICE FOR THE MANUFACTURE OF HANDLES TO BE APPLIED TO A FILM OF MATERIAL FOR PACKAGING AND HANDLE OBTAINED WITH THIS PROVISION
DE3634238C2 (en) * 1986-10-08 1996-02-22 Sengewald Karl H Method of making a carrier bag

Also Published As

Publication number Publication date
DE19753911A1 (en) 1999-06-10
DE59811187D1 (en) 2004-05-19
EP0920984A2 (en) 1999-06-09
EP0920984A3 (en) 2001-06-27
ES2218738T3 (en) 2004-11-16

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