EP1034918A2 - Method of making a packaging means from a plastic film or similar weldable material - Google Patents

Method of making a packaging means from a plastic film or similar weldable material Download PDF

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Publication number
EP1034918A2
EP1034918A2 EP00102308A EP00102308A EP1034918A2 EP 1034918 A2 EP1034918 A2 EP 1034918A2 EP 00102308 A EP00102308 A EP 00102308A EP 00102308 A EP00102308 A EP 00102308A EP 1034918 A2 EP1034918 A2 EP 1034918A2
Authority
EP
European Patent Office
Prior art keywords
web
sections
double
folded
gusset
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
EP00102308A
Other languages
German (de)
French (fr)
Other versions
EP1034918B1 (en
EP1034918A3 (en
Inventor
Volker Brönstrup
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.)
KLAUS REINHOLD MASCHINEN- UND GERAETEBAU GMBH &
Original Assignee
Klaus Reinhold Maschinen- und Geratebau GmbH
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 Klaus Reinhold Maschinen- und Geratebau GmbH filed Critical Klaus Reinhold Maschinen- und Geratebau GmbH
Priority to DK00102308T priority Critical patent/DK1034918T3/en
Publication of EP1034918A2 publication Critical patent/EP1034918A2/en
Publication of EP1034918A3 publication Critical patent/EP1034918A3/en
Application granted granted Critical
Publication of EP1034918B1 publication Critical patent/EP1034918B1/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
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning 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
    • B31B2155/00—Flexible containers made from 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/001—Flexible containers made from webs by folding webs longitudinally
    • B31B2155/0014—Flexible containers made from webs by folding webs longitudinally 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/002—Flexible containers made from webs by joining superimposed webs, e.g. with separate bottom 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
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents

Definitions

  • the invention relates to a method for producing a Packaging material made of plastic film or the like Material in the form of a gusseted bag or sack, with a front and a back wall, through side walls forming gussets on both sides with each other are connected, and with a bag bottom, the in turn with the front and rear walls and with the Gussets is connected, the front wall and the Rear wall and the side walls each by a separate Section of material formed by Welds are connected to each other.
  • Packaging of the specified type made of plastic film or The like.
  • Weldable material are in numerous configurations depending on their intended use, e.g. as a beverage bag, refill for liquid or pasty filling material or generally as a stand-up pouch for pourable filling goods of any kind, known.
  • Across from such packaging in the form of gusseted bags or -sacks formed by a one-piece section of material offer packaging in the form of gusseted bags or bags, in which the front and rear walls and the side walls each of separate material sections are formed, greater freedom in terms of Design options for the individual material sections, especially with regard to the printing of the packaging with sales promotion information, product information and Like.
  • the invention has for its object a method for the production of a packaging material from plastic film or The like.
  • Weldable material in the form of a gusseted bag or sacks of the type specified at the beginning create that easily in a continuous Can carry out work process.
  • This object is achieved according to the invention in that the material sections of the front and rear walls of a first and a second flat main material web be formed after bringing about a mutual Coverage in a first, common funding direction are promoted, a third flat material web is folded into a gusseted cord from which gusset sections separated in predetermined length and in a second conveying direction transverse to the first conveying direction in circulation on one of the two main material webs be promoted and that the bag bottom in turn from a separate section of material fourth flat material web is formed with at least one of the two main material webs merged, then funded parallel to the first funding direction and with the gusset sections and the two main material webs welded along their adjacent side edges becomes.
  • weldable material in the method according to the invention to find packaging in particular Films made of suitable polyolefins, such as polyethylene or Polypropylene, or composite application, in which Metal foils, especially aluminum foils, for example for Manufacture of aroma-tight packaging can.
  • suitable polyolefins such as polyethylene or Polypropylene
  • metal foils especially aluminum foils, for example for Manufacture of aroma-tight packaging can.
  • Such weldable or heat sealable Materials are common in packaging production Materials.
  • a first flat material main web 1 in the direction of arrow 2 a device for manufacturing, not shown a packaging made of plastic film or the like Material promoted in the course of the invention Procedure in the form of a gusseted bag or -sackes received.
  • a second flat main material web 3 is from an upper level to deflection rollers 4 and 5 after funded below in overlap with the main material web 1, whereupon both material webs 2 and 3 together conveyed flat in the direction of conveyance 2 one above the other become.
  • a third flat web of material 6 is in the direction of Arrow 7 transversely, preferably at right angles to the direction of conveyance 2 promoted to the main material web 1.
  • the Material web 6 is moved around from a lower conveyor level Deflection rollers 8 and 9 conveyed to an upper conveyor level, which occupies the same level as the main material web 1.
  • the material web is in this upper conveyor level 6 to a gusseted cord, in the example shown a double-sided fold strand 10 in the form of a Flat hose 6 'with opposite side Folded edges 11 folded.
  • the along the two Folded edges 11 folded against each other to form flat tube 6 ' Side parts 12 of the material web 6 border in Area of the vertical longitudinal median plane of the flat hose 6 'preferably without overlap and connection to each other.
  • Double-sided fold strand 10 From the double-sided fold strand 10 are by means of a Cross cutting device consisting of upper and lower tools 13 double-sided fold sections 14 as flat tube sections separated and by suitable funding, which comprise at least one pair of rollers 15, by that the section 14 with fixation of its folded edges 11 runs through, a folding device 16 to and through promoted this.
  • a folding device 16 Received in the folding device 16 each section 14 at its leading in the conveying direction 7 End by folding tools, not shown a folding in the form of double corner triangles 17, in which the hypotenuses 21 of the right-angled isosceles triangles in parallel mutual Are facing each other.
  • 2 to 5 show the sections 14 in an enlarged view Scale. Your direction of funding is in turn by the Direction arrow 7 indicated. 2 shows section 14 immediately after its disconnection from the flat tube 6 '. At 18 is the overlap and connection free area between the side parts 12 in the form of a longitudinal gap 18 evident.
  • the leading end 19 is in the folding device 16 at the top 19a and bottom 19b of the section 14 unfolded, as shown in FIG. 3, and folded laterally inwards, as shown in FIG. 4, and around a transverse fold line 20 folded back onto the top 19a.
  • the distance of the transverse folding line 20 from the leading one End 19 of section 14 is equal to depth t a gusset or half the width of the flat tube 6 ', and the two corner turns occur 17 in the form of right-angled isosceles triangles, whose hypotenuses 21 at the end of the unfolding process parallel to each other and to the longitudinal folding edges 11 of the section 14 run.
  • sections 14, at which is passed through at least one further pair of rollers 15, are the corner triangles 17 along the height of the respective corner triangle 17 defining Transverse fold line 20 folded back on itself, so that a triangular pocket 17 'open in the conveying direction 7 of each corner triangle 17 is formed, as in particular 5 can be seen.
  • the section 14 is on the material web 1 placed as a sub-web and if necessary on this its underside 19b along its longitudinal gap 18 containing vertical median longitudinal plane pinned to its position perpendicular to the longitudinal edges of the bottom sheet 1 to be fixed during further transport.
  • a fourth flat web of material 22 used for bottoming the packaging is used, is from an upper level around deflecting rollers 23 from an upper level to rest on the Lower lane 1 immediately before the point where the sections were posted 14 brought to together with the subway 1 in Arrow direction 2 to be promoted.
  • the lower web in the example shown according to Fig. 1A on a vertical section, the Flat web 22 folded into a half tube 22 ', the one long side of a folded edge 24 and the other Long side of the folded, connection-free held longitudinal edges 25 of the half hose 22 ' becomes.
  • the half hose placed on the lower web 1 22 ' is from the triangular pockets 17' of the sections 14 added by the leading open Triangular pockets 17 'when the sections 14 are applied the lower web 1 grasp the half hose 22 ', so that the Folded edge 24 on the inner boundary fold line 20 (Fig. 5) of the triangular pockets 17 '.
  • a pair of rollers 15 is a further welding device 29 with top and Bottom tool reached, which is across the web composite extends.
  • the gusset portions 14a and 14b still combined into the double-side gusset section 14, along their longitudinal edges at the top 19a and the underside 19b of section 14 with the respective adjacent areas of the two main material webs 1 and 3 with the formation of parallel weld seams 31 and
  • the half-tube 22 'seamlessly along the Hypotenuses 21 of the corner triangles 17 in the Triangular pockets 17 'of sections 14 welded to them.
  • the double-sided fold sections 14 are after their welding with the two main material webs 1 and 3 and the half hose 22 'in the region of the longitudinal gap 18 containing vertical longitudinal median plane, i.e. on too the lower wall or lower side opposite the gap 18 19b, separated and the adjacent side edges assigned to two adjacent packaging means 32.
  • This separation takes place during the further transport of the Compound web in conveying direction 2 by means of a cross cutting device 33, which is also the half hose 22 ' between the hypotenuse edges 21 in the gap 18 containing separates the vertical longitudinal median plane. While this separation process also becomes the edge welds 31 in parallel edge welds 34 on adjacent packaging 32 divided lengthways.
  • Processes are performed by the double-sided fold strand 10 again the double side fold sections 14 separated and in the form shown in Fig. 2, i.e. without folding of corner triangles 17 on the leading End, the main material web 1 fed as a sub-web is in turn promoted in the direction of arrow 2.
  • the sections 14, which in turn are in Direction of arrow 7 across or perpendicular to the conveying direction 2 are fed, as are the sections 14 of the first embodiment, in the desired width of the packaging 32 corresponding distances to the Lower web 1 placed and pinned to this.
  • the Main material web 3 is the upper web from an upper Level over the deflection rollers 4 and 5 with the lower web 1 merged and in turn to the already at the Lower web 2 sections 14 attached.
  • the sections 14 are attached to the two main material webs 1, 3 is in the area of the longitudinal gap 18 vertical longitudinal median plane of the sections 14 by welding or preferably hot melt or the like. Glue orders made.

Landscapes

  • Making Paper Articles (AREA)
  • Wrappers (AREA)
  • Bag Frames (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)

Abstract

The plastic sack base, cut from a fourth band (22), is laid along the first main band (1). A third flat band (6) folded edges to center, is cut to length and laid transversely on the first (1). (Its leading edge is also given double-arrowhead folds). A second band (3) is laid over the assembly on the first band (1). Advancing together, these bands (1, 3) form front and rear walls of the sack when they and the folded sections are welded along their edges. Preferred features: The various folds in individual sections of the sack are further detailed and illustrated in the disclosure. Adhesion is promoted between double side folded sections and the two main bands (front and rear). Hot-melt or other adhesive is applied, for this purpose. Folding variants are described. In a final stage, the sacks are separated from the main material bands, as individual containers used for packaging.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines Packmittels aus Kunststoffolie oder dgl. verschweißbarem Material in Form eines Seitenfaltenbeutels oder -sackes, mit einer Vorder- und einer Rückwand, die durch Seitenwände bildende Seitenfalten an ihren beiden Seiten miteinander verbunden sind, und mit einem Beutelboden, der seinerseits mit der Vorder- und der Rückwand sowie mit den Seitenfalten verbunden ist, wobei die Vorderwand und die Rückwand sowie die Seitenwände jeweils von einem gesonderten Materialabschnitt gebildet sind, die durch Schweißnähte miteinander verbunden werden.The invention relates to a method for producing a Packaging material made of plastic film or the like Material in the form of a gusseted bag or sack, with a front and a back wall, through side walls forming gussets on both sides with each other are connected, and with a bag bottom, the in turn with the front and rear walls and with the Gussets is connected, the front wall and the Rear wall and the side walls each by a separate Section of material formed by Welds are connected to each other.

Packmittel der angegebenen Art aus Kunststoffolie oder dgl. verschweißbarem Material sind in zahlreichen Ausgestaltungen je nach ihrem beabsichtigten Verwendungszweck, z.B. als Getränkebeutel, Nachfüllpackung für flüssiges oder pastöses Füllgut oder allgemein als Standbeutel für schüttfähige Füllgüter beliebiger Art, bekannt. Gegenüber solchen Packmitteln in Form von Seitenfaltenbeuteln oder -säcken, die von einem einteiligen Materialabschnitt gebildet werden, bieten Packmittel in Form von Seitenfaltenbeuteln oder -säcken, bei denen Vorder- und Rückwand sowie die Seitenwände jeweils von gesonderten Materialabschnitten gebildet sind, größere Freiheit hinsichtlich der Gestaltungsmöglichkeit der einzelnen Materialabschnitte, insbesondere hinsichtlich der Bedruckung des Packmittels mit verkaufsfördernden Angaben, Wareninformationen und dgl. sowie der Längenbemessung der die Seitenwände bildenden Seitenfalten, die nicht notwendigerweise gleich der Länge bzw. Höhe des Packmittels sein muß, sondern, je nach der dem Verwendungszweck des Packmittels entsprechenden Gestaltung des Packmittelkopfes auch kürzer als die Packmittelhöhe oder ungleich an den beiden Packmittelseiten ausgeführt sein kann.Packaging of the specified type made of plastic film or The like. Weldable material are in numerous configurations depending on their intended use, e.g. as a beverage bag, refill for liquid or pasty filling material or generally as a stand-up pouch for pourable filling goods of any kind, known. Across from such packaging in the form of gusseted bags or -sacks formed by a one-piece section of material offer packaging in the form of gusseted bags or bags, in which the front and rear walls and the side walls each of separate material sections are formed, greater freedom in terms of Design options for the individual material sections, especially with regard to the printing of the packaging with sales promotion information, product information and Like. And the length dimensioning of the side walls Gussets that are not necessarily the same Length or height of the packaging must be, but depending on the one corresponding to the intended use of the packaging Design of the packaging head also shorter than the packaging height or different on the two sides of the packaging can be executed.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines Packmittels aus Kunststoffolie oder dgl. verschweißbarem Material in Form eines Seitenfaltenbeutels oder -sackes der eingangs angegebenen Art zu schaffen, das sich auf einfache Weise in einem kontinuierlichen Arbeitsprozeß durchführen läßt.The invention has for its object a method for the production of a packaging material from plastic film or The like. Weldable material in the form of a gusseted bag or sacks of the type specified at the beginning create that easily in a continuous Can carry out work process.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß die Materialabschnitte der Vorder- und der Rückwand von einer ersten und einer zweiten flachen Materialhauptbahn gebildet werden, die nach Herbeiführung einer gegenseitigen Überdeckung in einer ersten, gemeinsamen Förderrichtung gefördert werden, eine dritte flache Materialbahn zu einem Seitenfaltenstrang gefaltet wird, von dem Seitenfaltenabschnitte in vorgegebener Länge abgetrennt und in einer zweiten Förderrichtung quer zur ersten Förderrichtung in Auflage auf eine der beiden Materialhauptbahnen gefördert werden und daß der Beutelboden seinerseits von einem gesonderten Materialabschnitt einer vierten flachen Materialbahn gebildet wird, die mit zumindest einer der beiden Materialhauptbahnen zusammengeführt, sodann parallel zur ersten Förderrichtung gefördert und mit den Seitenfaltenabschnitten sowie den beiden Materialhauptbahnen entlang deren angrenzenden Seitenrändern verschweißt wird. Hierbei ist die Möglichkeit gegeben, sämtliche in dem erfindungsgemäßen Verfahren Verwendung findenden Materialbahnen vor ihrer Verarbeitung zu Packmitteln in kontinuierlichen Druckverfahren zu bedrucken und den in Abhängigkeit vom Verwendungszweck des Packmittels gestellten Anforderungen an die Länge der die Seitenwände bildenden Seitenfaltenabschnitte gerecht zu werden, wie auch der Einsatz der bei dem erfindungsgemäßen Verfahren kontinuierlich zugeförderten Materialbahnen die Voraussetzung für einen kontinuierlichen Arbeitsprozeß bildet, bei dem die einzelnen Arbeitsschritte an den laufenden Materialbahnen durchgeführt werden können, bis schließlich einzelne Packmittel am Ende des Arbeitsprozesses von den bearbeiteten Materialbahnen abgetrennt werden.This object is achieved according to the invention in that the material sections of the front and rear walls of a first and a second flat main material web be formed after bringing about a mutual Coverage in a first, common funding direction are promoted, a third flat material web is folded into a gusseted cord from which gusset sections separated in predetermined length and in a second conveying direction transverse to the first conveying direction in circulation on one of the two main material webs be promoted and that the bag bottom in turn from a separate section of material fourth flat material web is formed with at least one of the two main material webs merged, then funded parallel to the first funding direction and with the gusset sections and the two main material webs welded along their adjacent side edges becomes. Here there is the possibility of all use in the inventive method finding material webs before they are processed into packaging materials to be printed in continuous printing processes and depending on the intended use of the packaging made demands on the length of the Side gusset sections forming side walls be, as well as the use of the in the invention Process continuously fed material webs A prerequisite for a continuous work process forms, in which the individual steps to the ongoing material webs can be carried out until finally individual packaging at the end of the work process separated from the processed material webs become.

Zahlreiche weitere Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen und der nachstehenden Beschreibung zweier Ausführungsbeispiele des erfindungsgemäßen Verfahrens in Verbindung mit der Zeichnung. In der Zeichnung zeigen:

Fig. 1A und 1B
eine schematische perspektivische Darstellung einer Vorrichtung zur Herstellung eines Packmittels aus Kunststoffolie oder dgl. verschweißbarem Material in Form eines Seitenfaltenbeutels oder -sackes nach einer ersten Ausführungsform des erfindungsgemäßen Verfahrens, wobei Fig. 1B eine Verlängerung der Fig. 1A darstellt,
Fig. 2 bis 5
je eine schematische perspektivische Darstellung eines zur Herstellung der Seitenwände des Packmittels Verwendung findenden Doppelseitenfaltenabschnitts in unterschiedlichen Bearbeitungszuständen,
Fig. 6 und 7
schematische perspektivische Darstellungen des Beutelbodens des nach dem erfindungsgemäßen Verfahren hergestellten Packmittels, im Leerzustand bzw. gefüllten Zustand des Packmittels, und
Fig. 8
eine schematische perspektivische Darstellung einer in ihrem Umfang der Vorrichtung nach Fig. 1A entsprechenden Vorrichtung zur Herstellung eines Packmittels nach einer weiteren Ausführungsform des erfindungsgemäßen Verfahrens.
Numerous further features and advantages of the invention emerge from the subclaims and the following description of two exemplary embodiments of the method according to the invention in conjunction with the drawing. The drawing shows:
1A and 1B
2 shows a schematic perspective illustration of a device for producing a packaging material made of plastic film or the like. weldable material in the form of a gusseted bag or sack according to a first embodiment of the method according to the invention, FIG. 1B being an extension of FIG. 1A,
2 to 5
each a schematic perspective illustration of a double-side fold section used for producing the side walls of the packaging means in different processing states,
6 and 7
schematic perspective representations of the bag bottom of the packaging material produced by the method according to the invention, in the empty or filled state of the packaging material, and
Fig. 8
is a schematic perspective view of a device corresponding to the scope of the device according to FIG. 1A for producing a packaging material according to a further embodiment of the method according to the invention.

Als schweißbares Material in dem erfindungsgemäßen Verfahren zur Packmittelherstellung finden insbesondere Folien aus geeigneten Polyolefinen, wie Polyethylen oder Polypropylen, oder auch Verbundfolien Anwendung, in die Metallfolien, speziell Aluminiumfolien, beispielsweise zur Herstellung aromadichter Packmittel, einbezogen sein können. Solche schweißbaren oder heißsiegelfähigen Materialien sind in der Packmittelherstellung übliche Werkstoffe.As a weldable material in the method according to the invention to find packaging in particular Films made of suitable polyolefins, such as polyethylene or Polypropylene, or composite application, in which Metal foils, especially aluminum foils, for example for Manufacture of aroma-tight packaging can. Such weldable or heat sealable Materials are common in packaging production Materials.

Wie sich zunächst aus Fig. 1A ergibt, wird eine erste flache Materialhauptbahn 1 in Richtung des Pfeils 2 durch eine nicht näher dargstellte Vorrichtung zur Herstellung eines Packmittels aus Kunststoffolie oder dgl. verschweißbarem Material gefördert, das im Zuge des erfindungsgemäßen Verfahrens die Form eines Seitenfaltenbeutels oder -sackes erhält. Eine zweite flache Materialhauptbahn 3 wird aus einer oberen Ebene um Umlenkwalzen 4 und 5 nach unten in Überdeckung mit der Materialhauptbahn 1 gefördert, woraufhin beide Materialbahnen 2 und 3 gemeinsam in Förderrichtung 2 flach übereinanderliegend weitergefördert werden.As can first be seen from FIG. 1A, a first flat material main web 1 in the direction of arrow 2 a device for manufacturing, not shown a packaging made of plastic film or the like Material promoted in the course of the invention Procedure in the form of a gusseted bag or -sackes received. A second flat main material web 3 is from an upper level to deflection rollers 4 and 5 after funded below in overlap with the main material web 1, whereupon both material webs 2 and 3 together conveyed flat in the direction of conveyance 2 one above the other become.

Eine dritte flache Materialbahn 6 wird in Richtung des Pfeils 7 quer, vorzugsweise rechtwinklig zur Förderrichtung 2 zur Materialhauptbahn 1 hin gefördert. Die Materialbahn 6 wird dabei aus einer unteren Förderebene um Umlenkwalzen 8 und 9 in eine obere Förderebene gefördert, die die gleiche Ebene wie die Materialhauptbahn 1 einnimmt. In dieser oberen Förderebene wird die Materialbahn 6 zu einem Seitenfaltenstrang, bei dem dargestellten Beispiel einem Doppelseitenfaltenstrang 10 in Form eines Flachschlauches 6' mit einander gegenüberliegenden seitlichen Faltkanten 11 gefaltet. Die entlang den beiden Faltkanten 11 gegeneinander zum Flachschlauch 6' gefalteten Seitenteile 12 der Materialbahn 6 grenzen im Bereich der vertikalen Längsmittelebene des Flachschlauches 6' vorzugsweise überlappungs- und verbindungsfrei aneinander an.A third flat web of material 6 is in the direction of Arrow 7 transversely, preferably at right angles to the direction of conveyance 2 promoted to the main material web 1. The Material web 6 is moved around from a lower conveyor level Deflection rollers 8 and 9 conveyed to an upper conveyor level, which occupies the same level as the main material web 1. The material web is in this upper conveyor level 6 to a gusseted cord, in the example shown a double-sided fold strand 10 in the form of a Flat hose 6 'with opposite side Folded edges 11 folded. The along the two Folded edges 11 folded against each other to form flat tube 6 ' Side parts 12 of the material web 6 border in Area of the vertical longitudinal median plane of the flat hose 6 'preferably without overlap and connection to each other.

Von dem Doppelseitenfaltenstrang 10 werden mittels einer aus Ober- und Unterwerkzeug bestehenden Querschneidvorrichtung 13 Doppelseitenfaltenabschnitte 14 als Flachschlauchabschnitte abgetrennt und durch geeignete Fördermittel, die zumindest ein Walzenpaar 15 umfassen, durch das der Abschnitt 14 unter Fixierung seiner Faltkanten 11 hindurchläuft, einer Faltvorrichtung 16 zu- und durch diese hindurchgefördert. In der Faltvorrichtung 16 erhält jeder Abschnitt 14 an seinem in Förderrichtung 7 vorauslaufenden Ende durch nicht näher dargestellte Faltwerkzeuge eine Auffaltung in Form doppelter Eckeinschlagsdreiecke 17, bei denen die Hypotenusen 21 der rechtwinkligen gleichschenkligen Dreiecke in paralleler gegenseitiger Ausrichtung einander zugewandt sind.From the double-sided fold strand 10 are by means of a Cross cutting device consisting of upper and lower tools 13 double-sided fold sections 14 as flat tube sections separated and by suitable funding, which comprise at least one pair of rollers 15, by that the section 14 with fixation of its folded edges 11 runs through, a folding device 16 to and through promoted this. Received in the folding device 16 each section 14 at its leading in the conveying direction 7 End by folding tools, not shown a folding in the form of double corner triangles 17, in which the hypotenuses 21 of the right-angled isosceles triangles in parallel mutual Are facing each other.

Die Fig. 2 bis 5 zeigen die Abschnitte 14 in vergrößertem Maßstab. Ihre Förderrichtung ist wiederum durch den Richtungspfeil 7 angegeben. Fig. 2 zeigt den Abschnitt 14 unmittelbar nach seinem Abtrennen vom Flachschlauch 6'. Bei 18 ist der überlappungs- und verbindungsfreie Bereich zwischen den Seitenteilen 12 in Form eines Längsspaltes 18 ersichtlich.2 to 5 show the sections 14 in an enlarged view Scale. Your direction of funding is in turn by the Direction arrow 7 indicated. 2 shows section 14 immediately after its disconnection from the flat tube 6 '. At 18 is the overlap and connection free area between the side parts 12 in the form of a longitudinal gap 18 evident.

In der Faltvorrichtung 16 wird das vorauslaufende Ende 19 an der Oberseite 19a und der Unterseite 19b des Abschnitts 14 auseinandergefaltet, wie Fig. 3 erkennen läßt, und seitlich einwärts gefaltet, wie Fig. 4 zeigt, sowie um eine Querfaltlinie 20 auf die Oberseite 19a zurückgeschlagen. Der Abstand der Querfaltlinie 20 vom vorauslaufenden Ende 19 des Abschnitts 14 ist gleich der Tiefe t einer Seitenfalte bzw. der halben Breite des Flachschlauches 6', und es entstehen die beiden Eckeinschläge 17 in Form rechtwinkliger gleichschenkliger Dreiecke, deren Hypotenusen 21 bei Beendigung des Auffaltvorgangs parallel zueinander und zu den Längsfaltkanten 11 des Abschnitts 14 verlaufen.The leading end 19 is in the folding device 16 at the top 19a and bottom 19b of the section 14 unfolded, as shown in FIG. 3, and folded laterally inwards, as shown in FIG. 4, and around a transverse fold line 20 folded back onto the top 19a. The distance of the transverse folding line 20 from the leading one End 19 of section 14 is equal to depth t a gusset or half the width of the flat tube 6 ', and the two corner turns occur 17 in the form of right-angled isosceles triangles, whose hypotenuses 21 at the end of the unfolding process parallel to each other and to the longitudinal folding edges 11 of the section 14 run.

Während der fortgesetzten Förderung der Abschnitte 14, bei der zumindest ein weiteres Walzenpaar 15 durchlaufen wird, werden die Eckeinschlagdreiecke 17 entlang der die Höhe des jeweiligen Eckeinschlagdreiecks 17 definierenden Querfaltlinie 20 auf sich selbst zurückgefaltet, so daß eine in Förderrichtung 7 offene Dreiecktasche 17' von jedem Eckeinschlagdreieck 17 gebildet wird, wie dies insbesondere aus Fig. 5 ersichtlich ist.During the continued promotion of sections 14, at which is passed through at least one further pair of rollers 15, are the corner triangles 17 along the height of the respective corner triangle 17 defining Transverse fold line 20 folded back on itself, so that a triangular pocket 17 'open in the conveying direction 7 of each corner triangle 17 is formed, as in particular 5 can be seen.

In diesem Zustand wird der Abschnitt 14 auf die Materialbahn 1 als Unterbahn aufgelegt und ggf. auf dieser mit seiner Unterseite 19b entlang seiner den Längsspalt 18 enthaltenden vertikalen Längsmittelebene angeheftet, um seine Position rechtwinklig zu den Längsrändern der Unterbahn 1 während des Weitertransports zu fixieren.In this state, the section 14 is on the material web 1 placed as a sub-web and if necessary on this its underside 19b along its longitudinal gap 18 containing vertical median longitudinal plane pinned to its position perpendicular to the longitudinal edges of the bottom sheet 1 to be fixed during further transport.

Eine vierte flache Materialbahn 22, die zur Bodenbildung des Packmittels dient, wird aus einer oberen Ebene um Umlenkwalzen 23 aus einer oberen Ebene zur Auflage auf die Unterbahn 1 unmittelbar vor der Aufgabestelle der Abschnitte 14 gebracht, um gemeinsam mit der Unterbahn 1 in Pfeilrichtung 2 weitergefördert zu werden. Während ihrer Überführung von ihrer oberen Zuführebene zu der Auflageebene der Unterbahn 1, bei dem dargestellten Beispiel gemäß Fig. 1A auf einem senkrechten Teilstück, wird die Flachbahn 22 zu einem Halbschlauch 22' gefaltet, dessen eine Längsseite von einer Faltkante 24 und dessen andere Längsseite von den gegeneinander gefalteten, verbindungsfrei gehaltenen Längsrändern 25 des Halbschlauchs 22' gebildet wird. Der auf die Unterbahn 1 aufgelegte Halbschlauch 22' wird von den Dreiecktaschen 17' der Abschnitte 14 aufgenommen, indem die vorauslaufend offenen Dreiecktaschen 17' beim Aufbringen der Abschnitte 14 auf die Unterbahn 1 den Halbschlauch 22' erfassen, so daß die Faltkante 24 an der inneren Begrenzungsfaltlinie 20 (Fig. 5) der Dreiecktaschen 17' anliegt.A fourth flat web of material 22 used for bottoming the packaging is used, is from an upper level around deflecting rollers 23 from an upper level to rest on the Lower lane 1 immediately before the point where the sections were posted 14 brought to together with the subway 1 in Arrow direction 2 to be promoted. During their Transfer from their upper feed level to the support level the lower web 1, in the example shown according to Fig. 1A on a vertical section, the Flat web 22 folded into a half tube 22 ', the one long side of a folded edge 24 and the other Long side of the folded, connection-free held longitudinal edges 25 of the half hose 22 ' becomes. The half hose placed on the lower web 1 22 'is from the triangular pockets 17' of the sections 14 added by the leading open Triangular pockets 17 'when the sections 14 are applied the lower web 1 grasp the half hose 22 ', so that the Folded edge 24 on the inner boundary fold line 20 (Fig. 5) of the triangular pockets 17 '.

Während der Weiterförderung in Richtung des Pfeils 2 gelangt die Unterbahn 1 mitsamt den aufgelegten Abschnitten 14 und dem Halbschlauch 22' unter die Materialhauptbahn 3 als Oberbahn, und es erfolgt eine gemeinsame Weiterförderung der Materialhauptbahnen 1 und 3 unter Einfassung der Abschnitte 14 und des Halbschlauches 22' in Förderrichtung 2 zu einer Schweißvorrichtung 26 mit zwei übereinander liegenden Schweißbacken, zwischen denen die bodenbildende Materialbahn 22 bzw. der von dieser gebildete Halbschlauch 22' an seinen Längsrändern 25 mit dem angrenzenden Längsrand 27 bzw. 28 der Materialhauptbahnen 1 und 3 nahtförmig verschweißt wird.Arrives in the direction of arrow 2 during further conveyance the subway 1 together with the sections laid on 14 and the half hose 22 'under the main material web 3 as a top train, and there is a joint further funding the main material webs 1 and 3 under edging of sections 14 and half hose 22 'in the conveying direction 2 to a welding device 26 with two one above the other lying welding jaws, between which the bottom-forming material web 22 or the web formed by it Half hose 22 'on its longitudinal edges 25 with the adjacent longitudinal edge 27 or 28 of the main material webs 1 and 3 is welded seamlessly.

Bei der Weiterförderung des Bahnenverbundes in Förderrichtung 2 mittels geeigneter Fördereinrichtungen, von denen in Fig. 1B wiederum ein Walzenpaar 15 dargestellt ist, wird eine weitere Schweißvorrichtung 29 mit Ober- und Unterwerkzeug erreicht, die sich quer über den Bahnenverbund erstreckt. Hier werden die Seitenfaltenabschnitte 14a und 14b, noch zu dem Doppelseitenfaltenabschnitt 14 vereinigt, entlang ihren Längsrändern an der Oberseite 19a und der Unterseite 19b des Abschnitts 14 mit den jeweils angrenzenden Bereichen der beiden Materialhauptbahnen 1 und 3 unter Ausbildung paralleler Schweißnähte 31 sowie ferner der Halbschlauch 22' nahtförmig entlang den Hypotenusen 21 der Eckeinschlagsdreiecke 17 in den Dreiecktaschen 17' der Abschnitte 14 mit diesen verschweißt.In the further promotion of the rail network in the direction of funding 2 by means of suitable funding facilities, from which in turn is shown in FIG. 1B a pair of rollers 15 is a further welding device 29 with top and Bottom tool reached, which is across the web composite extends. Here, the gusset portions 14a and 14b, still combined into the double-side gusset section 14, along their longitudinal edges at the top 19a and the underside 19b of section 14 with the respective adjacent areas of the two main material webs 1 and 3 with the formation of parallel weld seams 31 and Furthermore, the half-tube 22 'seamlessly along the Hypotenuses 21 of the corner triangles 17 in the Triangular pockets 17 'of sections 14 welded to them.

Die Doppelseitenfaltenabschnitte 14 werden nach ihrer Verschweißung mit den beiden Materialhauptbahnen 1 und 3 und dem Halbschlauch 22' im Bereich ihrer den Längsspalt 18 enthaltenden vertikalen Längsmittelebene, d.h. auch auf der dem Spalt 18 gegenüberliegenden Unterwand bzw. Unterseite 19b, getrennt und dabei den benachbarten Seitenrändern zweier benachbarter Packmittel 32 zugeordnet. Diese Trennung erfolgt während des Weitertransports des Bahnenverbunds in Förderrichtung 2 mittels einer Querschneidvorrichtung 33, die auch den Halbschlauch 22' zwischen den Hypotenusenkanten 21 in der den Spalt 18 enthaltenden vertikalen Längsmittelebene trennt. Während dieses Trennvorgangs werden außerdem die Randschweißnähte 31 in parallele Randschweißnähte 34 an benachbarten Packmitteln 32 längsgeteilt.The double-sided fold sections 14 are after their welding with the two main material webs 1 and 3 and the half hose 22 'in the region of the longitudinal gap 18 containing vertical longitudinal median plane, i.e. on too the lower wall or lower side opposite the gap 18 19b, separated and the adjacent side edges assigned to two adjacent packaging means 32. This separation takes place during the further transport of the Compound web in conveying direction 2 by means of a cross cutting device 33, which is also the half hose 22 ' between the hypotenuse edges 21 in the gap 18 containing separates the vertical longitudinal median plane. While this separation process also becomes the edge welds 31 in parallel edge welds 34 on adjacent packaging 32 divided lengthways.

Bei der Verschweißung der bodenbildenden Materialbahn 22, d.h. des Halbschlauchs 22', mit den beiden Materialhauptbahnen 1, 3 und den Seitenfaltenabschnitten 14a und 14b und nach dem Abtrennen der einzelnen Packmittel 32 vom Bahnenverbund ist ein Muster von vier rechtwinklig zueinander angeordneten, unterbrechungsfrei ineinander übergehenden Bodenschweißnähten 34, 35 entstanden, die einen vom Halbschlauch 22' abgetrennten Materialabschnitt 36 als Beutelboden des Packmittels 32 begrenzen, dessen die Vorder- und die Rückwand bildenden beiden einander gegenüberliegenden Hauptwände 37 von den entsprechenden Abschnitten der Materialhauptbahnen 1 und 3 gebildet werden.When welding the floor-forming material web 22, i.e. of the half hose 22 ', with the two main material webs 1, 3 and the gusset portions 14a and 14b and after separating the individual packaging 32 from Composite is a pattern of four at right angles to each other arranged, without interruption transition floor welds 34, 35, which a section of material separated from the half hose 22 ' 36 limit as the bag bottom of the packaging 32, the the front and the back wall forming two each other opposite main walls 37 of the corresponding ones Sections of the main material webs 1 and 3 are formed become.

Bei dem anhand der Fig. 8 veranschaulichten abgewandelten Verfahren werden von dem Doppelseitenfaltenstrang 10 wiederum die Doppelseitenfaltenabschnitte 14 abgetrennt und in der aus Fig. 2 ersichtlichen Form, d.h. ohne Anfaltung von Eckeinschlagdreiecken 17 am vorauslaufenden Ende, der Materialhauptbahn 1 als Unterbahn zugeführt, die wiederum in Richtung des Pfeils 2 gefördert wird. Auf der Unterbahn 1 werden die Abschnitte 14, die wiederum in Richtung des Pfeils 7 quer bzw. rechtwinklig zur Förderrichtung 2 zugeführt werden, ebenso wie die Abschnitte 14 des ersten Ausführungsbeispiels, in der gewünschten Breite des Packmittels 32 entsprechenden Abständen auf die Unterbahn 1 aufgelegt und auf dieser angeheftet. Die Materialhauptbahn 3 wird als Oberbahn aus einer oberen Ebene über die Umlenkwalzen 4 und 5 mit der Unterbahn 1 zusammengeführt und ihrerseits an die bereits auf der Unterbahn 2 aufliegenden Abschnitte 14 angeheftet.In the modified illustrated with reference to FIG. 8 Processes are performed by the double-sided fold strand 10 again the double side fold sections 14 separated and in the form shown in Fig. 2, i.e. without folding of corner triangles 17 on the leading End, the main material web 1 fed as a sub-web is in turn promoted in the direction of arrow 2. On the Lower web 1 is the sections 14, which in turn are in Direction of arrow 7 across or perpendicular to the conveying direction 2 are fed, as are the sections 14 of the first embodiment, in the desired width of the packaging 32 corresponding distances to the Lower web 1 placed and pinned to this. The Main material web 3 is the upper web from an upper Level over the deflection rollers 4 and 5 with the lower web 1 merged and in turn to the already at the Lower web 2 sections 14 attached.

Beim gemeinsamen Weitertransport in Förderrichtung 2 wird der Längsrand 27 der Oberbahn 3 gegenüber dem Längsrand 28 der Unterbahn 1 mit den Endbereichen der angehefteten Abschnitte 14 unter Ausbildung der doppelten Eckeinschlagdreiecke 17 des ersten Ausführungsbeispiels aufgefaltet, die sich hierbei selbsttätig entlang einer der Querfaltlinie 20 entsprechenden Faltlinie ausbilden.When transporting them together in the direction of conveyance 2 the longitudinal edge 27 of the top web 3 opposite the longitudinal edge 28 the lower web 1 with the end regions of the attached sections 14 with the formation of double corner triangles 17 of the first embodiment unfolded, which automatically runs along one of the transverse fold lines Form 20 corresponding fold lines.

Auf die auseinandergefalteten Längsränder 27, 28 mit den Eckeinschlagsdreiecken 17 wird sodann die vierte Materialbahn 22 als Flachbahn mit den auseinandergefalteten Längsrändern 27, 28 entsprechender Breite aufgelegt. Die Materialbahn 22 wird dabei aus einer oberen Zuführebene über die Umlenkwalzen 23 in die Ebene der Unter- und Oberbahn 1, 3 gefördert. Sodann wird der aufgefaltete Längsrand 28 der Oberbahn 3 unter Einbeziehung der Eckeinschlagdreiecke 17 und unter Einfassung der Materialbahn 22 auf den Rand 27 der Unterbahn 1 für eine anschließende Verschweißung zurückgefaltet, wie sie bereits bei dem ersten Ausführungsbeispiel anhand der Fig. 1B beschrieben wurde.On the unfolded longitudinal edges 27, 28 with the Cornering triangles 17 then becomes the fourth material web 22 as a flat sheet with the unfolded longitudinal edges 27, 28 of corresponding width. The Material web 22 becomes an upper feed level about the deflection rollers 23 in the plane of the lower and upper web 1, 3 promoted. Then the unfolded longitudinal edge 28 of the upper track 3, including the corner triangles 17 and enclosing the material web 22 on the edge 27 of the lower web 1 for a subsequent Folded back welding, as already with the first embodiment described with reference to FIG. 1B has been.

Die Anheftung der Abschnitte 14 an die beiden Materialhauptbahnen 1, 3 wird im Bereich der den Längsspalt 18 enthaltenden vertikalen Längsmittelebene der Abschnitte 14 durch Schweißung oder vorzugsweise Hotmelt- oder dgl. Klebstoffaufträge vorgenommen.The sections 14 are attached to the two main material webs 1, 3 is in the area of the longitudinal gap 18 vertical longitudinal median plane of the sections 14 by welding or preferably hot melt or the like. Glue orders made.

Im übrigen entsprechen die weiteren Verfahrensschritte denen der anhand der Fig. 1A und 1B beschriebenen Ausführungsform des Verfahrens, wie es durch die Verwendung gleicher Bezugszeichen für gleiche bzw. übereinstimmende Teile bei der Beschreibung des Verfahrens kenntlich gemacht ist.Otherwise, the further process steps correspond those of the embodiment described with reference to FIGS. 1A and 1B of the process as it is through use same reference numerals for the same or corresponding Parts identified in the description of the process is.

Claims (17)

Verfahren zur Herstellung eines Packmittels aus Kunststoffolie oder dgl. verschweißbarem Material in Form eines Seitenfaltenbeutels oder -sackes, mit einer Vorder- und einer Rückwand, die durch Seitenwände bildende Seitenfalten an ihren beiden Seiten miteinander verbunden sind, und mit einem Beutelboden, der seinerseits mit der Vorder- und der Rückwand sowie mit den Seitenfalten verbunden ist, wobei die Vorderwand und die Rückwand sowie die Seitenwände jeweils von einem gesonderten Materialabschnitt gebildet sind, die durch Schweißnähte miteinander verbunden werden, dadurch gekennzeichnet, daß die Materialabschnitte der Vorder- und der Rückwand von einer ersten und einer zweiten flachen Materialhauptbahn gebildet werden, die nach Herbeiführung einer gegenseitigen Überdeckung in einer ersten, gemeinsamen Förderrichtung gefördert werden, eine dritte flache Materialbahn zu einem Seitenfaltenstrang gefaltet wird, von dem Seitenfaltenabschnitte in vorgegebener Länge abgetrennt und in einer zweiten Förderrichtung quer zur ersten Förderrichtung in Auflage auf eine der beiden Materialhauptbahnen gefördert werden und daß der Beutelboden seinerseits von einem gesonderten Materialabschnitt einer vierten flachen Materialbahn gebildet wird, die mit zumindest einer der beiden Materialhauptbahnen zusammengeführt, sodann parallel zur ersten Förderrichtung gefördert und mit den Seitenfaltenabschnitten sowie den beiden Materialhauptbahnen entlang deren angrenzenden Seitenrändern verschweißt wird.Process for producing a packaging material from plastic film or the like.Weldable material in the form of a gusseted bag or sack, with a front and a back wall, which are connected by side gussets forming side gussets on both sides, and with a bag bottom, which in turn connects with the Front and the rear wall and the side gussets is connected, the front wall and the rear wall and the side walls each being formed by a separate material section which are connected to one another by weld seams, characterized in that the material sections of the front and rear wall are of one first and a second flat material main web are formed, which are conveyed after bringing about a mutual overlap in a first, common conveying direction, a third flat material web is folded into a side gusset from which side gusset sections are separated in a predetermined length nt and in a second conveying direction transverse to the first conveying direction in support of one of the two main material webs and that the bag bottom is itself formed by a separate material section of a fourth flat material web which is brought together with at least one of the two main material webs, then conveyed parallel to the first conveying direction and is welded to the gusset sections and the two main material webs along their adjacent side edges. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die dritte flache Materialbahn zu einem Doppelseitenfaltenstrang in Form eines Flachschlauches gefaltet wird, dessen Faltkanten jeweils eine Faltkante eines Seitenfaltenabschnitts bilden.A method according to claim 1, characterized in that the third flat web of material to a double-sided fold strand is folded in the form of a flat tube, whose fold edges each have a fold edge of a side fold section form. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die entlang den beiden Faltkanten gegeneinander zum Flachschlauch gefalteten Seitenränder der dritten flachen Materialbahn überlappungs- und verbindungsfrei im Bereich der vertikalen Längsmittelebene des Flachschlauches aneinander angrenzen.A method according to claim 2, characterized in that the along the two folded edges against each other to the flat tube folded side margins of the third flat Material web in the area without overlaps and connections the vertical longitudinal median plane of the flat hose adjoin each other. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß von dem Doppelseitenfaltenstrang Doppelseitenfaltenabschnitte abgetrennt und an ihrem vorauslaufenden Ende zu doppelten Eckeinschlagsdreiecken gefaltet werden, bei denen die Hypotenusen der Eckeinschlagsdreiecke in paralleler gegenseitiger Ausrichtung einander zugewandt sind.A method according to claim 2 or 3, characterized in that that of the double-sided fold strand double-sided fold sections severed and at their leading Folded into double corner triangles at the end in which the hypotenuses of the corner triangles in parallel mutual alignment are facing each other. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Seitenfaltenabschnitte auf ihrem Förderweg in der zweiten Förderrichtung an ihrem vorauslaufenden Ende entlang einer Querfaltkante im Abstand der Seitenfaltentiefe von der vorauslaufenden Trennkante des Seitenfaltenabschnitts um- und einwärts gefaltet werden, derart, daß Eckeinschläge in Form rechtwinkliger gleichschenkeliger Dreiecke gebildet werden, deren Hypotenuse der Faltlinie des Seitenfaltenabschnitts in paralleler Ausrichtung gegenüberliegt.Method according to one of claims 1 to 4, characterized in that that the gusset sections on her Conveyor path in the second conveying direction at its leading one End along a transverse folding edge at a distance of Side pleat depth from the leading separating edge of the Side gusset section are folded over and inwards, such that corner turns in the form of right-angled isosceles Triangles are formed, their hypotenuse the fold line of the gusset section in parallel Alignment is opposite. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß die Eckeinschläge während der fortgesetzten Förderung der Seitenfaltenabschnitte entlang der die Höhe des Dreiecks definierenden Querfaltlinie auf sich selbst zurückgefaltet werden, derart, daß eine in Förderrichtung offene Dreiecktasche gebildet wird.A method according to claim 5, characterized in that the cornersticks while continuing to promote the Gusset sections along the height of the triangle defining folding line folded back on itself be such that a triangular pocket open in the conveying direction is formed. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die vierte Materialbahn von den Dreiecktaschen der in Auflage auf die eine der beiden Materialhauptbahnen geförderten Seitenfaltenabschnitte aufgenommen wird.A method according to claim 5 or 6, characterized in that that the fourth web of material from the triangular pockets which is supported on one of the two main material webs promoted gusset sections is added. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß von dem Doppelseitenfaltenstrang Doppelseitenfaltenabschnitte abgetrennt und einer der beiden Materialhauptbahnen, die eine Unterbahn bildet, zugeführt und an diese in der gewünschten Beutelbreite entsprechenden Abständen voneinander angehefetet werden, die andere der beiden Materialhauptbahnen, die eine Oberbahn bildet, mit der Unterbahn zusammengeführt und ihrerseits an die Doppelseitenfaltenabschnitte angeheftet, danach ein Längsrand der Oberbahn mit den Endbereichen der angehefteten Doppelseitenfaltenabschnitte unter Ausbildung von doppelten Eckeinschlagsdreiecken aufgefaltet, die vierte Materialbahn auf die auseinandergefalteten Längsränder der beiden Materialhauptbahnen aufgelegt und danach der aufgefaltete Längsrand der Oberbahn unter Einbeziehung der Eckeinschlagdreiecke und Einfassung der vierten Materialbahn für eine anschließende Verschweißung zurückgefaltet wird.A method according to claim 2 or 3, characterized in that that of the double-sided fold strand double-sided fold sections severed and one of the two Main material webs, which forms a sub-web, fed and corresponding to them in the desired bag width Spaced from each other, the other of the two main material webs that form a top web, merged with the subway and in turn to the Double-sided fold sections attached, then a longitudinal margin the top web with the end areas of the pinned Double gusset sections forming double corner triangles unfolded, the fourth Material web on the unfolded longitudinal edges of the placed on the two main material webs and then the unfolded one Longitudinal edge of the top sheet, including the corner triangles and edging the fourth web of material is folded back for subsequent welding. Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß die Anheftung der Doppelseitenfaltenabschnitte an die beiden Materialhauptbahnen im Bereich der vertikalen Längsmittelebene der Doppelseitenfaltenabschnitte vorgenommen wird.A method according to claim 8, characterized in that the attachment of the double-sided fold sections to the two main material webs in the vertical Longitudinal median plane of the double gusset sections made becomes. Verfahren nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Anheftung der Doppelseitenfaltenabschnitte an die Materialhauptbahnen durch Hotmelt- oder dgl. Klebstoffaufträge vorgenommen wird. A method according to claim 8 or 9, characterized in that the tacking of the double side fold sections to the main material webs by hot melt or Like. Glue orders is made. Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß die vierte flache Materialbahn zu einem Halbschlauch gefaltet wird, dessen eine Längsseite von einer Faltkante und dessen andere Längsseite von den gegeneinander gefalteten, verbindungsfrei gehaltenen Längsrändern der Materialbahn gebildet wird.A method according to claim 7, characterized in that the fourth flat material web into a half tube is folded, one long side of a folded edge and its other long side from the folded, longitudinal edges of the Material web is formed. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß die vierte Materialbahn von den Dreiecktaschen mit an deren innerer Begrenzungsfaltlinie anliegender Faltkante des Halbschlauches aufgenommen wird.A method according to claim 11, characterized in that the fourth web of material with the triangular pockets the inner boundary fold line of the folding edge of the half hose is picked up. Verfahren nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Doppelseitenfaltenabschnitte nach ihrer Verschweißung mit den beiden Materialhauptbahnen und der den Beutelboden bildenden vierten flachen Materialbahn im Bereich ihrer vertikalen Längsmittelebene getrennt und dabei den benachbarten Seitenrändern zweier benachbarter Packmittel zugeordnet werden.Method according to one of claims 1 to 12, characterized characterized in that the double-sided fold sections after their welding to the two main material webs and the fourth flat material web forming the bag bottom separated in the area of their vertical longitudinal median plane and the adjacent side edges of two neighboring ones Packaging materials can be assigned. Verfahren nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die bodenbildende Materialbahn mit den angrenzenden Seitenrändern der beiden Materialhauptbahnen und entlang der Hypotenuse der Eckeinschlagsdreiecke in den Dreiecktaschen der Seitenfaltenabschnitte mit diesen verschweißt wird.Method according to one of claims 1 to 13, characterized characterized in that the bottom-forming material web with the adjacent side edges of the two main material webs and along the hypotenuse of the corner triangles in the triangular pockets of the gusset sections with these is welded. Verfahren nach Anspruch 14, dadurch gekennzeichnet, daß bei der Verschweißung der bodenbildenden Materialbahn mit den beiden Materialhauptbahnen und den Seitenfaltenabschnitten ein Muster von vier rechtwinklig zueinander angeordneten, unterbrechungsfrei ineinander übergehenden Bodenschweißnähten erzeugt wird.A method according to claim 14, characterized in that when welding the bottom-forming material web with the two main material webs and the gusset sections a pattern of four perpendicular to each other arranged, uninterrupted merging Floor welds is produced. Verfahren nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die Seitenfaltenabschnitte entlang ihren Längsrändern mit den jeweils angrenzenden Randbereichen der beiden Materialhauptbahnen unter Ausbildung paralleler Randschweißnähte verschweißt werden.Method according to one of claims 1 to 15, characterized characterized in that the gusset sections along their longitudinal edges with the adjacent border areas of the two main material tracks under training parallel edge welds are welded. Verfahren nach Anspruch 16, dadurch gekennzeichnet, daß die einzelnen Packmittel durch Quertrennschnitte parallel zu den Randschweißnähten von den vereinigten Materialbahnen und Seitenfaltenabschnitten abgetrennt werden.A method according to claim 16, characterized in that the individual packaging by cross-cutting parallel to the edge welds of the united Separated material webs and gusset sections become.
EP00102308A 1999-03-08 2000-02-03 Method of making a packaging means from a plastic film or similar weldable material Expired - Lifetime EP1034918B1 (en)

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DK00102308T DK1034918T3 (en) 1999-03-08 2000-02-03 Process for producing a packaging film of plastic film or similar weldable material

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DE19910264A DE19910264A1 (en) 1999-03-08 1999-03-08 Method for producing a packaging material from plastic film or the like weldable material
DE19910264 1999-03-08

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EP (1) EP1034918B1 (en)
JP (1) JP4436521B2 (en)
AT (1) ATE270961T1 (en)
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DE (2) DE19910264A1 (en)
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JP2000254984A (en) 2000-09-19
ATE270961T1 (en) 2004-07-15
US6425847B1 (en) 2002-07-30
EP1034918B1 (en) 2004-07-14
CA2299918C (en) 2007-06-26
ES2223325T3 (en) 2005-03-01
DE19910264A1 (en) 2000-09-14
CA2299918A1 (en) 2000-09-08
DE50007033D1 (en) 2004-08-19
JP4436521B2 (en) 2010-03-24
EP1034918A3 (en) 2001-10-10
DK1034918T3 (en) 2004-11-01

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