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 PDFInfo
- 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
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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
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.
- 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
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
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
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
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
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
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
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
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
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
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
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
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-
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
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
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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK00102308T DK1034918T3 (en) | 1999-03-08 | 2000-02-03 | Process for producing a packaging film of plastic film or similar weldable material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1034918A2 true EP1034918A2 (en) | 2000-09-13 |
EP1034918A3 EP1034918A3 (en) | 2001-10-10 |
EP1034918B1 EP1034918B1 (en) | 2004-07-14 |
Family
ID=7900195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00102308A Expired - Lifetime EP1034918B1 (en) | 1999-03-08 | 2000-02-03 | Method of making a packaging means from a plastic film or similar weldable material |
Country Status (8)
Country | Link |
---|---|
US (1) | US6425847B1 (en) |
EP (1) | EP1034918B1 (en) |
JP (1) | JP4436521B2 (en) |
AT (1) | ATE270961T1 (en) |
CA (1) | CA2299918C (en) |
DE (2) | DE19910264A1 (en) |
DK (1) | DK1034918T3 (en) |
ES (1) | ES2223325T3 (en) |
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- 2000-02-03 ES ES00102308T patent/ES2223325T3/en not_active Expired - Lifetime
- 2000-02-03 AT AT00102308T patent/ATE270961T1/en not_active IP Right Cessation
- 2000-02-03 EP EP00102308A patent/EP1034918B1/en not_active Expired - Lifetime
- 2000-02-03 DK DK00102308T patent/DK1034918T3/en active
- 2000-03-03 CA CA002299918A patent/CA2299918C/en not_active Expired - Fee Related
- 2000-03-06 JP JP2000060549A patent/JP4436521B2/en not_active Expired - Fee Related
- 2000-03-07 US US09/520,330 patent/US6425847B1/en not_active Expired - Fee Related
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1250999A1 (en) * | 1999-12-03 | 2002-10-23 | Hosokawa Yoko Co., Ltd | Manufacturing method and apparatus of gusset bag |
US6796932B2 (en) | 1999-12-03 | 2004-09-28 | Hosokawa Yoko Co., Ltd. | Manufacturing method and apparatus of gusset bag |
EP1524195A1 (en) * | 2002-07-24 | 2005-04-20 | Totani Corporation | Plastic bag and bag making machine therefor |
EP1524195A4 (en) * | 2002-07-24 | 2011-01-12 | Totani Corp | Plastic bag and bag making machine therefor |
WO2004072528A2 (en) | 2003-02-14 | 2004-08-26 | Windmöller & Hölscher Kg | Tubular film, device and method for producing the same |
US8642147B2 (en) | 2003-02-14 | 2014-02-04 | Windmoeller & Hoelscher Kg | Tubular film, device and method for producing the same |
EP1972432A1 (en) * | 2007-03-22 | 2008-09-24 | Jenton International Limited | Valve bag |
US9005094B2 (en) | 2007-03-22 | 2015-04-14 | Jenton International Limited | Method of forming a valve bag |
DE102008039953A1 (en) | 2008-08-27 | 2010-03-04 | B & B - Maf Gmbh & Co. Kg | Method for manufacturing package, particularly for manufacturing side-folded bag from plastic film, involves folding flat material web to multi-layer folded web in longitudinal direction |
WO2011145115A1 (en) * | 2010-05-17 | 2011-11-24 | Ashok Chaturvedi | Improved gusset tube feeding mechanism for apparatus to make packages |
Also Published As
Publication number | Publication date |
---|---|
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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