EP1462364B2 - Machine for making tubular bags - Google Patents

Machine for making tubular bags Download PDF

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Publication number
EP1462364B2
EP1462364B2 EP04014688A EP04014688A EP1462364B2 EP 1462364 B2 EP1462364 B2 EP 1462364B2 EP 04014688 A EP04014688 A EP 04014688A EP 04014688 A EP04014688 A EP 04014688A EP 1462364 B2 EP1462364 B2 EP 1462364B2
Authority
EP
European Patent Office
Prior art keywords
foil
sealing means
tube
tubular
edge
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.)
Expired - Lifetime
Application number
EP04014688A
Other languages
German (de)
French (fr)
Other versions
EP1462364A1 (en
EP1462364B1 (en
Inventor
Gerhard Kuss
René Ohrisch
Harald Braun
Walter Dr. Baur
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.)
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
Original Assignee
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
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Application filed by Rovema Verpackungsmaschinen GmbH and Co KG, Rovema GmbH filed Critical Rovema Verpackungsmaschinen GmbH and Co KG
Publication of EP1462364A1 publication Critical patent/EP1462364A1/en
Publication of EP1462364B1 publication Critical patent/EP1462364B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2021—Tube advancing means combined with longitudinal welding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2042—Means for altering the cross-section of the tube filling opening prior to transversal sealing, e.g. tube spreading devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/22—Forming shoulders; Tube formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/10—Creating an off-center longitudinal seal on horizontal or vertical form fill seal [FFS] machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/12—Creating additional longitudinal welds on horizontal or vertical form fill seal [FFS] machines for stiffening packages or for creating package edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2056—Machines for packages of special type or form

Definitions

  • the invention relates to a tubular bag machine comprising a film web, a supply roll, deflection rollers for feeding the flat film web to a forming shoulder, a film take-off for transporting the film web, a filling tube for receiving the film web converted into a film tube, baking a transverse welding device for producing transverse seams, a separating device for transection of the film tube, and connected to the filling tube, facing away from the filling tube, flat spreading elements, wherein in the direction of transporting the spreading elements in each case one edge welding device per spreader is provided, which is directed against the deflected by a spreader hose edge.
  • Such a known tubular bag machine is used to produce tubular bags whose four edges are welded. These tubular bags have a relatively good stability.
  • a bag with only four longitudinal welds has no longitudinal seam on the bag printing.
  • the bag printing there interrupting longitudinal seam a conventional, symmetrical form shoulder is used.
  • the invention is based on the object to eliminate this disadvantage in a tubular bag machine according to the preamble of claim 1.
  • a separate longitudinal welding device is provided for welding the area adjacent to the hose rim.
  • the otherwise centerline longitudinal seam is placed in the region of an edge of the bag, so that a separate, centrally extending longitudinal seam is no longer present, wherein the longitudinal welding device (18) relative to the adjacent edge welding device (15) to the film edges (17) is offset, the film edges (17) in the form of a fin (22) from the film tube (8 ) or against the film tube (8), and the longitudinal welding device (18) is at a distance from the film edges (17), so that the film edges (17) remain unwelded.
  • the unwelded edges can be manually grasped and pulled apart to thus open the bag.
  • the invention has the advantage that, owing to the two welding devices provided on a hose edge, namely an edge welding device and the separate longitudinal welding device, two longitudinal seams are produced directly next to one another in the region of the hose edge at which the film hose is longitudinally closed.
  • one seam may be provided as a relatively tear-proof and non-reclosable seam, and the other seam may serve as an easy-open or resealable seam.
  • a seam primarily fulfills the purpose of bag stabilization and the other seam serves for a secure bag closure.
  • the edge-welding seam is generally lower strength than the bag-welding longitudinal seam.
  • the seam to be opened first is a seam which can be easily opened, and the subsequent seam fulfills the function of edge stabilization.
  • the first seam to be opened can hereby have a reclosing aid.
  • the longitudinal welding device If the longitudinal welding device is offset from the edge of the film adjacent to the edge of the film, the longitudinal welding device effects the closure of the film tube at the point where the two film edges meet. These edges are followed by an edge area. This arrangement allows in a simple way the production of four-edge sealed bags with limited by an edge longitudinal seam. The edge can also be formed without a bag closing property.
  • the proposed tubular bag machine is used both for the production of bags, the film edge in the form of a fin from the bag (film tube) away, as well as for bags whose film edge in the form of an overlap seam or a fin on the bag (film tube) is applied.
  • the concern can z. B. be provided by means of a corresponding weld.
  • the tubular bag machine can be operated continuously or clocked. Accordingly, the operation of the film take-off takes place.
  • circumferential sealing strips (claim 2) and a rotating system of transverse jaws are suitable for longitudinal welding.
  • Heat seal jaws which are operated in cycles (claim 3) can be used in a clocked operation.
  • Gussets are used to create gussets in the film tube.
  • a pair of mutually movable gusset generators are used to prick two opposing gussets into the film tube.
  • tubular bags are welded together with two opposing transverse seams. These bags are very dimensionally stable. They are welded on the head side and bottom side by means of cross seams. The gussets are welded in the cross seams.
  • the bag is symmetrical with respect to its gusset arrangement and can be made relatively round so as to have a can-like appearance in edged form and to serve in the most advantageous manner (material savings) as a can substitute.
  • the tubular bag machine can be equipped with a conventional, but slotted, asymmetric forming shoulder.
  • a preforming of the edges can be done in a technically simplest manner and regardless of the operating mode of the tubular bag machine, if according to claim 7 in the region of the forming shoulder two film retainer are provided, which are each arranged between two Folienspreizern to preform the film tube for edge welding. These foil spreaders are attached to the filling tube for secure preforming.
  • a device for attaching a bag opening aid or a resealing aid is attached to the flat film web, and if this aid is provided for entry into the longitudinal seam and / or the edges to be welded (claim 9), then a selected seam can be provided with appropriate assistance.
  • a strip-like peel layer may be used to achieve easy opening after gripping the film edges, a double-sided adhesive tape to achieve a secure closure in conjunction with reclosability, and a zippered reclosable strip, in particular a repeated one Reclosing to be able to use.
  • a flat film web 2 is unwound from a supply roll 3 and fed via a deflection roller 4 of an asymmetrical forming shoulder 5 ( FIG. 1 ).
  • the collar breast parts 34, 35 of the form shoulder 5 are different in length.
  • a film take-off 6 serves for the further transport of the film web 2.
  • a filling tube 7 receives the film web 2 formed into a film tube 8.
  • a separator 12 for cutting through the film tube 8 between two transverse seams 11. Through the filling tube 7, a filling of the bag 13 is produced.
  • the forming shoulder 7 displaces the superimposed film edges 17 to the right on the side of the film tube 8.
  • a separate longitudinal welding device 18 is provided for welding the region 19 adjacent to the tube edge 16 in order to produce two weld seams lying directly next to one another.
  • Longitudinal welding device 18 generates a longitudinal seam 20, whereas each edge welding device 15 generates a welded edge 21 on the film tube 8.
  • the longitudinal welding device 18 is offset relative to the edge welding device 15 adjacent to the film edge 17.
  • the film edge 17 itself remains unwelded and has in the form of a fin 22 of the film tube 8 away. By pulling the film edges 17 apart, the fin 22 and thus a bag 13 can be torn open.
  • the film take-off 6 is operated continuously.
  • the longitudinal welder 18 and the edge welders 15 are continuously driven, circumferential sealing belts.
  • the edge welding devices 15 each have a counter holder 23.
  • two pairs 24, 25 gusset generators 26 are provided at the transverse welding device 10.
  • the two gussets 26 of a pair 24, 25 are movable against each other and in the film tube 8 between them to produce gussets in the bag 13.
  • a pair 24 is provided in the sheet transporting direction in front and a pair 25 after the transverse welding device 10.
  • the distance 27 of the one pair 24 from the transverse welding device 10, viewed in the direction of film transport, is equal to the distance 27 of the other pair 25 from the transverse welding device 10.
  • the forming shoulder 5 has a lateral slot 28 through which the film edge 17 is led out ( FIG. 1 ).
  • two film retainers 29 are provided on the filling tube 7, which are each arranged between two film spreaders 30 in order to preform the film tube 8 for a welding of the edges 21.
  • a device 31 for attaching a bag opening aid 32 is attached ( FIG. 1 ).
  • the bag-opening aid 32 is a strip-shaped peel layer which runs into the longitudinal seam 20 and serves to produce a bag 13 (13) produced in this way. FIG. 5 ) easier to open.
  • the bag 13 has four side folds 33 and is closed at the top and at the bottom by means of a respective transverse seam 11. In addition to one of its four welded edges 21, its longitudinal seam 20 extends. Its fin 22 projects from the bag 13.
  • Peel layer within the longitudinal seam 20 allows easy opening of the longitudinal seam 20 by mounting.
  • the longitudinal welding device 18 By means of an arrangement of the longitudinal welding device 18 according to FIG. 4 can a bag 13 according to FIG. 6 be generated.
  • the longitudinal welding device 18 acts here against the folded fin 22 and against the filling tube 7.
  • the corresponding bag 13 thus has a folded-over longitudinal seam 20.
  • the film edges 17 are unwelded and can therefore be pulled apart manually.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Glass Compositions (AREA)

Abstract

The form-and-fill machine has a feed roller (3) for plastic sheet (2) and a folding roller (4) which forms the sheet into shoulder portions (34, 35) of different lengths. A feeder (6) moves the sheet on to a filler pipe (7). A welder (10) produces transverse welds and spreaders with individual welding devices (15) weld the edges held by the spreaders. The novelty is that a separate welder (18) produces a weld along the edge (16) of the bag.

Description

Die Erfindung betrifft eine Schlauchbeutelmaschine mit einer Folienbahn, einer Vorratsrolle, Umlenkrollen zur Zuführung der ebenen Folienbahn zu einer Formschulter, einem Folienabzug zum Transport der Folienbahn, einem Füllrohr zur Aufnahme der zu einem Folienschlauch umgeformten Folienbahn, Backen einer Querschweißeinrichtung zur Erzeugung von Quernähten, einer Trenneinrichtung zur Durchtrennung des Folienschlauches, und mit dem Füllrohr verbundenen, vom Füllrohr weg weisenden, flachen Spreizelementen, wobei in Folientransportrichtung den Spreizelementen nachgeordnet jeweils eine Kantenschweißeinrichtung pro Spreizelement vorgesehen ist, die gegen den von jeweils einem Spreizelement ausgelenkten Schlauchrand gerichtet ist.The invention relates to a tubular bag machine comprising a film web, a supply roll, deflection rollers for feeding the flat film web to a forming shoulder, a film take-off for transporting the film web, a filling tube for receiving the film web converted into a film tube, baking a transverse welding device for producing transverse seams, a separating device for transection of the film tube, and connected to the filling tube, facing away from the filling tube, flat spreading elements, wherein in the direction of transporting the spreading elements in each case one edge welding device per spreader is provided, which is directed against the deflected by a spreader hose edge.

Eine derartige, bekannte Schlauchbeutelmaschine dient der Herstellung von Schlauchbeuteln, deren vier Kanten verschweißt sind. Diese Schlauchbeutel haben eine relativ gute Stabilität.Such a known tubular bag machine is used to produce tubular bags whose four edges are welded. These tubular bags have a relatively good stability.

Bei einer aus der EP 0 627 355 A bekannten Schlauchbeutelmaschine wird mittels einer symmetrischen Formschulter eine beutelmittig angeordnete Längsnaht erzeugt. Die Kanten des Beutels werden separat verschweißt, so dass ein Beutel fünf längs verlaufende Schweißnähte aufweist.At one of the EP 0 627 355 A Known flow wrap machine is produced by means of a symmetrical shoulder form a centerline arranged in the middle of the bag. The edges of the bag are welded separately so that a bag has five longitudinal welds.

Des weiteren ist aus der IT 0 127 41 00 B eine derartige Schlauchbeutelmaschine bekannt, bei der eine kantennahe Flosse einer Längsnaht an einem Folienschlauch anliegt.Furthermore, from the IT 0 127 41 00 B Such a tubular bag machine is known, in which a close-to-edge fin of a longitudinal seam rests against a film tube.

Ein Beutel mit lediglich vier längs verlaufenden Schweißnähten weist keine die Beutelbedruckung beeinträchtigende Längsnaht auf. Für die Herstellung eines Beutels mit mittiger, die Beutelbedruckung dort unterbrechende Längsnaht wird eine herkömmliche, symmetrische Formschulter verwendet.A bag with only four longitudinal welds has no longitudinal seam on the bag printing. For the production of a bag with a central, the bag printing there interrupting longitudinal seam a conventional, symmetrical form shoulder is used.

Die bekannten Schlauchbeutelmaschinen bieten nicht die Möglichkeit, Beutel mit gut zu handhabender Öffnungshilfe oder Wiederverschließhilfe derart herzustellen, dass diese Hilfe die besondere Form des längs seinen vier Kanten verschweißten Beutels nutzt.The known tubular bag machines do not offer the possibility to produce bags with easy-to-use opening aid or Wiederverschließhilfe such that this help uses the special shape of the sealed along its four edges bag.

Der Erfindung liegt die Aufgabe zu Grunde, diesen Nachteil bei einer Schlauchbeutelmaschine gemäß dem Oberbegriff des Anspruchs 1 zu beseitigen.The invention is based on the object to eliminate this disadvantage in a tubular bag machine according to the preamble of claim 1.

Gelöst ist die Aufgabe gemäß dem kennzeichnenden Teil des Anspruchs 1. Dabei ist eine separate Längsschweißeinrichtung für eine Verschweißung des dem Schlauchrand benachbarten Bereichs vorgesehen, durch den Einsatz der asymmetrischen Formschulter wird die ansonsten beutelmittig verlaufende Längsnaht in den Bereich einer Kante des Beutels gelegt, so dass eine separate, mittig verlaufende Längsnaht nicht mehr vorkommt, wobei die Längsschweißeinrichtung (18) gegenüber der ihr benachbarten Kantenschweißeinrichtung (15) zu den Folienrändern (17) hin versetzt ist, die Folienränder (17) in Form einer Flosse (22) vom Folienschlauch (8) weg weisen oder am Folienschlauch (8) anliegen, und die Längsschweißeinrichtung (18) einen Abstand zu den Folienrändern (17) aufweist, so dass die Folienränder (17) unverschweißt bleiben. Die unverschweißten Ränder können manuell ergriffen und auseinandergezogen werden, um derart den Beutel zu öffnen.The object is achieved according to the characterizing part of claim 1. In this case, a separate longitudinal welding device is provided for welding the area adjacent to the hose rim. By using the asymmetrical shaping shoulder, the otherwise centerline longitudinal seam is placed in the region of an edge of the bag, so that a separate, centrally extending longitudinal seam is no longer present, wherein the longitudinal welding device (18) relative to the adjacent edge welding device (15) to the film edges (17) is offset, the film edges (17) in the form of a fin (22) from the film tube (8 ) or against the film tube (8), and the longitudinal welding device (18) is at a distance from the film edges (17), so that the film edges (17) remain unwelded. The unwelded edges can be manually grasped and pulled apart to thus open the bag.

Die Erfindung hat den Vorteil, dass infolge der beiden an einem Schlauchrand vorgesehenen Schweißeinrichtungen, nämlich einer Kantenschweißeinrichtung und der separaten Längsschweißeinrichtung, zwei Längsnähte direkt nebeneinander im Bereich des Schlauchrandes, an dem der Folienschlauch längs verschlossen wird, erzeugt werden. Von diesen beiden Längsnähten kann eine Naht als relativ aufreißsichere und nicht wiederverschließbare Naht vorgesehen sein, und die andere Naht kann als leicht zu öffnende oder als wieder verschließbare Naht dienen. Oder aber eine Naht erfüllt infolge ihrer Kantenverschweißung in erster Linie den Zweck einer Beutelstabilisierung und die andere Naht dient einem sicheren Beutelverschluss. Dann hat z. B. die Kanten verschweißende Naht im Allgemeinen eine geringere Festigkeit als die Beutel verschweißende Längsnaht.The invention has the advantage that, owing to the two welding devices provided on a hose edge, namely an edge welding device and the separate longitudinal welding device, two longitudinal seams are produced directly next to one another in the region of the hose edge at which the film hose is longitudinally closed. Of these two longitudinal seams, one seam may be provided as a relatively tear-proof and non-reclosable seam, and the other seam may serve as an easy-open or resealable seam. Or, as a result of its edge welding, a seam primarily fulfills the purpose of bag stabilization and the other seam serves for a secure bag closure. Then z. B. the edge-welding seam is generally lower strength than the bag-welding longitudinal seam.

Besondere Bedeutung hat ein derart erzeugter Beutel auch dann, wenn die äußere, d. h. die zuerst zu öffnende Naht eine in einfacher Weise zu öffnende Naht ist, und die sich daran anschließende Naht die Funktion der Kantenstabilisierung erfüllt. Die zuerst zu öffnende Naht kann hierbei eine Wiederverschließhilfe aufweisen.Special importance has such a generated bag even if the outer, d. H. the seam to be opened first is a seam which can be easily opened, and the subsequent seam fulfills the function of edge stabilization. The first seam to be opened can hereby have a reclosing aid.

Ist die Längsschweißeinrichtung gegenüber der ihr benachbarten Kantenschweißeinrichtung zum Folienrand hin versetzt, so bewirkt die Längsschweißeinrichtung den Verschluss des Folienschlauches an der Stelle, an welcher die beiden Folienränder zusammentreffen. An diesen Rändern schließt sich ein Kantenbereich an. Diese Anordnung erlaubt in einfacher Weise die Herstellung von an vier Kanten verschweißten Beuteln mit von einer Kante begrenzten Längsnaht. Die Kante kann hierbei auch ohne Beutel verschließende Eigenschaft ausgebildet sein.If the longitudinal welding device is offset from the edge of the film adjacent to the edge of the film, the longitudinal welding device effects the closure of the film tube at the point where the two film edges meet. These edges are followed by an edge area. This arrangement allows in a simple way the production of four-edge sealed bags with limited by an edge longitudinal seam. The edge can also be formed without a bag closing property.

Die vorgeschlagene Schlauchbeutelmaschine dient sowohl zur Herstellung von Beuteln, deren Folienrand in Form einer Flosse vom Beutel (Folienschlauch) weg weist, als auch für Beutel, deren Folienrand in Form einer Überlappungsnaht oder einer Flosse am Beutel (Folienschlauch) anliegt. Das Anliegen kann z. B. mittels einer entsprechenden Verschweißung vorgesehen werden.The proposed tubular bag machine is used both for the production of bags, the film edge in the form of a fin from the bag (film tube) away, as well as for bags whose film edge in the form of an overlap seam or a fin on the bag (film tube) is applied. The concern can z. B. be provided by means of a corresponding weld.

Die Schlauchbeutelmaschine kann kontinuierlich oder getaktet betrieben werden. Entsprechend erfolgt der Betrieb des Folienabzuges. Für eine kontinuierliche Betriebsweise eignen sich zum längs Verschweißen umlaufende Siegelbänder (Anspruch 2) und ein rotierendes System von Querbacken. Heißsiegelbacken, die taktweise betrieben werden (Anspruch 3) können bei einer getakteten Betriebsweise genutzt werden.The tubular bag machine can be operated continuously or clocked. Accordingly, the operation of the film take-off takes place. For continuous operation, circumferential sealing strips (claim 2) and a rotating system of transverse jaws are suitable for longitudinal welding. Heat seal jaws, which are operated in cycles (claim 3) can be used in a clocked operation.

Seitenfaltenerzeuger dienen dazu, Seitenfalten im Folienschlauch zu erzeugen. Ein Paar gegeneinander beweglicher Seitenfaltenerzeuger wird genutzt, um zwei gegenüberliegende Seitenfalten in den Folienschlauch zu stechen. Derart werden mittels zwei Paaren von Seitenfaltenerzeugern, wobei ein Paar in Folientransportrichtung vor und ein Paar nach der Querschweißeinrichtung vorgesehen ist (Anspruch 4), Schlauchbeutel mit jeweils zwei gegenüber liegenden Quernähten verschweißt. Diese Beutel sind sehr formstabil. Sie werden kopfseitig und bodenseitig mittels Quernähten verschweißt. Die Seitenfalten werden in den Quernähten eingeschweißt. Ist der Abstand des einen Paars von der Querschweißeinrichtung gleich dem Abstand des anderen Paars von der Querschweißeinrichtung (Anspruch 5), so ist der Beutel hinsichtlich seiner Seitenfaltenanordnung symmetrisch und kann relativ rund geformt werden, um in auf Kanten gestellter Form ein Dosen ähnliches Aussehen zu haben und in vorteilhaftester Weise (Materialeinsparung) als Dosenersatz zu dienen.Gussets are used to create gussets in the film tube. A pair of mutually movable gusset generators are used to prick two opposing gussets into the film tube. Thus, by means of two pairs of gussets, wherein one pair is provided in the direction of transport of the film before and one pair after the transverse seal (claim 4), tubular bags are welded together with two opposing transverse seams. These bags are very dimensionally stable. They are welded on the head side and bottom side by means of cross seams. The gussets are welded in the cross seams. If the distance of the one pair from the transverse welding device is equal to the distance of the other pair from the transverse welding device (claim 5), then the bag is symmetrical with respect to its gusset arrangement and can be made relatively round so as to have a can-like appearance in edged form and to serve in the most advantageous manner (material savings) as a can substitute.

Weist die Formschulter einen seitlichen Schlitz auf, durch den der Folienrand herausgeführt wird (Anspruch 6), so kann die Schlauchbeutelmaschine mit einer herkömmlichen, jedoch geschlitzten, asymmetrischen Formschulter ausgerüstet werden.If the forming shoulder has a lateral slot through which the edge of the film is led out (claim 6), then the tubular bag machine can be equipped with a conventional, but slotted, asymmetric forming shoulder.

Eine Vorformung der Kanten kann in technisch einfachster Weise und unabhängig von der Betriebsart der Schlauchbeutelmaschine erfolgen, wenn gemäss Anspruch 7 im Bereich der Formschulter zwei Folienrückhalter vorgesehen sind, die jeweils zwischen zwei Folienspreizern angeordnet sind, um den Folienschlauch für eine Kantenverschweißung vorzuformen. Diese Folienspreizer werden für eine sichere Vorformung am Füllrohr angebracht (Anspruch 8).A preforming of the edges can be done in a technically simplest manner and regardless of the operating mode of the tubular bag machine, if according to claim 7 in the region of the forming shoulder two film retainer are provided, which are each arranged between two Folienspreizern to preform the film tube for edge welding. These foil spreaders are attached to the filling tube for secure preforming.

Ist an der ebenen Folienbahn eine Einrichtung zum Anbringen einer Beutelöffnungshilfe oder einer Wiederverschließhilfe angebracht, und ist diese Hilfe zum Einlauf in die Längsnaht und/oder die zu verschweißenden Kanten vorgesehen (Anspruch 9), so kann eine ausgewählte Naht mit einer entsprechenden Hilfe ausgestattet werden. Als Hilfe eignen sich gemäss Anspruch 10 insbesondere eine streifenförmige Peelschicht, um ein leichtes Öffnen nach Ergreifen der Folienränder zu erreichen, ein doppelseitig klebender Klebestreifen, um einen sicheren Verschluss in Verbindung mit einer Wiederverschließbarkeit zu erzielen, sowie ein Zipp-Wiederverschlussstreifen, um insbesondere ein wiederholtes Wiederverschließen nutzen zu können.If a device for attaching a bag opening aid or a resealing aid is attached to the flat film web, and if this aid is provided for entry into the longitudinal seam and / or the edges to be welded (claim 9), then a selected seam can be provided with appropriate assistance. In particular, according to claim 10, a strip-like peel layer may be used to achieve easy opening after gripping the film edges, a double-sided adhesive tape to achieve a secure closure in conjunction with reclosability, and a zippered reclosable strip, in particular a repeated one Reclosing to be able to use.

Im folgenden werden die erzeugten Schlauchbeutel und die erfindungsgemäße Schlauchbeutelmaschine an Hand von Ausführungsbeispiele darstellenden Figuren näher beschrieben. Es zeigt:

Figur 1
in einer Seitenansicht das Prinzip einer Schlauchbeutelmaschine zur Erzeugung eines Schlauchbeutels mit einer asymmetrischen Formschulter zur Umformung einer ebenen Folienbahn zu einem Folienschlauch, einem verjüngten Füllrohr, flachen Spreizelementen, geschlossenen, umlaufenden Backen einer Querschweißeinrichtung, mit gegen die ausgelenkten Schlauchränder gerichteten Kantenschweißeinrichtungen, sowie einer separaten Längsschweißeinrichtung;
Figur 2
in einem Schnitt entlang AA der Figur 1 das Füllrohr mit vier Folienspreizern und jeweils einem Folienrückhalter zwischen zwei Folienspreizern;
Figur 3
in einem Schnitt entlang BB der Figur 1 das Füllrohr mit vier Spreizelementen, jeweils einer Kantenschweißeinrichtung pro Spreizelement, sowie einer separaten, zusätzlichen Längsschweißeinrichtung am Schlauchrand, wobei die Folienränder unverschweißt bleiben, um die erzeugten Schlauchbeutel in einfacher Weise öffnen zu können.
Figur 4
in einem Schnitt einen Gegenstand analog Figur 3, jedoch mit umgelegtem Schlauchrand und versetzter, abgeänderter Längsschweißeinrichtung, wobei ebenso die Folienränder unverschweißt bleiben;
Figur 5
in einer perspektivischen Darstellung einen Schlauchbeutel mit jeweils zwei Seitenfalten pro Seite und mit an jeweils den beiden Rändern der beiden Seiten vorgesehenen, parallel zu einer Längsnaht verlaufenden verschweißten Kanten, sowie
Figur 6
in einer perspektivischen Darstellung einen Schlauchbeutel analog Figur 5, jedoch mit einem umgeklappten Randbereich des Beutels.
In the following, the tubular bag produced and the tubular bag machine according to the invention will be described in more detail with reference to illustrative figures. It shows:
FIG. 1
in a side view, the principle of a tubular bag machine for producing a tubular bag with an asymmetric form shoulder for forming a flat film web to a film tube, a tapered filling tube, flat expansion elements, closed, circumferential jaws of a transverse welding device, directed against the deflected tube edges edge welding devices, and a separate longitudinal welding device ;
FIG. 2
in a section along AA the FIG. 1 the filling tube with four Folienspreizern and each a film retainer between two Folienspreizern;
FIG. 3
in a section along BB the FIG. 1 the filling tube with four spreading elements, one edge welding device per spreading element, as well as a separate, additional longitudinal welding device on the tube edge, wherein the film edges remain unwelded to open the tubular bag produced in a simple manner.
FIG. 4
in a cut analogous to an object FIG. 3 , but with folded tube edge and staggered, modified longitudinal welding device, as well as the film edges remain unwelded;
FIG. 5
in a perspective view of a tubular bag with two side gussets per side and provided at each of the two edges of the two sides, parallel to a longitudinal seam extending welded edges, as well as
FIG. 6
in a perspective view of a tubular bag analog FIG. 5 but with a folded edge area of the bag.

Bei einer vertikalen Schlauchbeutelmaschine 1 wird eine ebene Folienbahn 2 von einer Vorratsrolle 3 abgewickelt und über eine Umlenkrolle 4 einer asymmetrischen Formschulter 5 zugeführt (Figur 1). Die Kragen-Brustteile 34, 35 der Formschulter 5 sind verschieden lang. Ein Folienabzug 6 dient dem Weitertransport der Folienbahn 2. Ein Füllrohr 7 nimmt die zu einem Folienschlauch 8 geformte Folienbahn 2 auf. Gegeneinander bewegliche Backen 9 einer Querschweißeinrichtung 10 dienen der Erzeugung von Quernähten 11 am Folienschlauch 8. In einer der Backen 9 befindet sich eine Trenneinrichtung 12 zur Durchtrennung des Folienschlauches 8 zwischen jeweils zwei Quernähten 11. Durch das Füllrohr 7 erfolgt eine Befüllung der erzeugten Beutel 13.In a vertical tubular bag machine 1, a flat film web 2 is unwound from a supply roll 3 and fed via a deflection roller 4 of an asymmetrical forming shoulder 5 ( FIG. 1 ). The collar breast parts 34, 35 of the form shoulder 5 are different in length. A film take-off 6 serves for the further transport of the film web 2. A filling tube 7 receives the film web 2 formed into a film tube 8. In one of the jaws 9 is a separator 12 for cutting through the film tube 8 between two transverse seams 11. Through the filling tube 7, a filling of the bag 13 is produced.

Mit dem Füllrohr 7 sind vier vom Füllrohr 7 weg weisende, flache Spreizelemente 14 verbunden (Figuren 3). In Folientransportrichtung den Spreizelementen 14 nachgeordnet, d. h. unterhalb der Spreizelemente 14, ist jeweils eine Kantenschweißeinrichtung 15 pro Spreizelement 14 vorgesehen, die jeweils gegen von einem Spreizelement 14 ausgelenkten Schlauchrand 16 gerichtet ist.With the filling tube 7 four pointing away from the filling tube 7, flat spreading elements 14 are connected ( Figures 3 ). Downstream of the spreading elements 14, ie below the spreading elements 14, one edge welding device 15 per spreading element 14 is provided in the direction of transport of the film, each being directed against the hose edge 16 deflected by a spreading element 14.

Die Formschulter 7 versetzt die aufeinander liegenden Folienränder 17 nach rechts an die Seite des Folienschlauches 8. Eine separate Längsschweißeinrichtung 18 ist für eine Verschweißung des dem Schlauchrand 16 benachbarten Bereichs 19 vorgesehen, um zwei direkt nebeneinander liegende Schweißnähte zu erzeugen. DieThe forming shoulder 7 displaces the superimposed film edges 17 to the right on the side of the film tube 8. A separate longitudinal welding device 18 is provided for welding the region 19 adjacent to the tube edge 16 in order to produce two weld seams lying directly next to one another. The

Längsschweißeinrichtung 18 erzeugt eine Längsnaht 20, wohingegen jede Kantenschweißeinrichtung 15 eine verschweißte Kante 21 am Folienschlauch 8 erzeugt. Die Längsschweißeinrichtung 18 ist gegenüber der ihr benachbarten Kantenschweißeinrichtung 15 zum Folienrand 17 hin versetzt. Der Folienrand 17 selbst bleibt unverschweißt und weist in Form einer Flosse 22 vom Folienschlauch 8 weg. Durch auseinanderziehen der Folienränder 17 kann die Flosse 22 und damit ein Beutel 13 aufgerissen werden.Longitudinal welding device 18 generates a longitudinal seam 20, whereas each edge welding device 15 generates a welded edge 21 on the film tube 8. The longitudinal welding device 18 is offset relative to the edge welding device 15 adjacent to the film edge 17. The film edge 17 itself remains unwelded and has in the form of a fin 22 of the film tube 8 away. By pulling the film edges 17 apart, the fin 22 and thus a bag 13 can be torn open.

Der Folienabzug 6 wird kontinuierlich betrieben. Die Längsschweißeinrichtung 18 und die Kantenschweißeinrichtungen 15 sind kontinuierlich angetriebene, umlaufende Siegelbänder. Die Kantenschweißeinrichtungen 15 weisen jeweils einen Gegenhalter 23 auf.The film take-off 6 is operated continuously. The longitudinal welder 18 and the edge welders 15 are continuously driven, circumferential sealing belts. The edge welding devices 15 each have a counter holder 23.

An der Querschweißeinrichtung 10 sind zwei Paar 24, 25 Seitenfaltenerzeuger 26 vorgesehen. Die beiden Seitenfaltenerzeuger 26 eines Paars 24, 25 sind gegeneinander und in den zwischen ihnen befindlichen Folienschlauch 8 bewegbar, um Seitenfalten im Beutel 13 zu erzeugen. Ein Paar 24 ist in Folientransportrichtung vor und ein Paar 25 nach der Querschweißeinrichtung 10 vorgesehen. Der Abstand 27 des einen Paars 24 von der Querschweißeinrichtung 10 ist, in Folientransportrichtung gesehen, gleich dem Abstand 27 des anderen Paars 25 von der Querschweißeinrichtung 10.At the transverse welding device 10, two pairs 24, 25 gusset generators 26 are provided. The two gussets 26 of a pair 24, 25 are movable against each other and in the film tube 8 between them to produce gussets in the bag 13. A pair 24 is provided in the sheet transporting direction in front and a pair 25 after the transverse welding device 10. The distance 27 of the one pair 24 from the transverse welding device 10, viewed in the direction of film transport, is equal to the distance 27 of the other pair 25 from the transverse welding device 10.

Die Formschulter 5 weist einen seitlichen Schlitz 28 auf, durch den der Folienrand 17 herausgeführt wird (Figur 1). Im Bereich der Formschulter 5 sind zwei Folienrückhalter 29 am Füllrohr 7 vorgesehen, die jeweils zwischen zwei Folienspreizern 30 angeordnet sind, um den Folienschlauch 8 für eine Verschweißung der Kanten 21 vorzuformen.The forming shoulder 5 has a lateral slot 28 through which the film edge 17 is led out ( FIG. 1 ). In the region of the forming shoulder 5, two film retainers 29 are provided on the filling tube 7, which are each arranged between two film spreaders 30 in order to preform the film tube 8 for a welding of the edges 21.

An der ebenen Folienbahn 2 ist eine Einrichtung 31 zum Anbringen einer Beutelöffnungshilfe 32 angebracht (Figur 1). Die Beutelöffnungshilfe 32 ist eine streifenförmige Peelschicht, die in die Längsnaht 20 einläuft und dazu dient, einen derart erzeugten Beutel 13 (Figur 5) leichter öffnen zu können.On the flat film web 2, a device 31 for attaching a bag opening aid 32 is attached ( FIG. 1 ). The bag-opening aid 32 is a strip-shaped peel layer which runs into the longitudinal seam 20 and serves to produce a bag 13 (13) produced in this way. FIG. 5 ) easier to open.

Der Beutel 13 weist vier Seitenfalten 33 auf und ist kopfseitig und bodenseitig mittels jeweils einer Quernaht 11 verschlossen. Neben einer seiner vier verschweißten Kanten 21 verläuft seine Längsnaht 20. Seine Flosse 22 steht vom Beutel 13 ab. DieThe bag 13 has four side folds 33 and is closed at the top and at the bottom by means of a respective transverse seam 11. In addition to one of its four welded edges 21, its longitudinal seam 20 extends. Its fin 22 projects from the bag 13. The

Peelschicht innerhalb der Längsnaht 20 ermöglicht ein einfaches Öffnen der Längsnaht 20 durch Aufziehen.Peel layer within the longitudinal seam 20 allows easy opening of the longitudinal seam 20 by mounting.

Mittels einer Anordnung der Längsschweißeinrichtung 18 gemäss Figur 4 kann ein Beutel 13 gemäss Figur 6 erzeugt werden. Die Längsschweißeinrichtung 18 wirkt hier gegen die umgelegte Flosse 22 und gegen das Füllrohr 7. Der entsprechende Beutel 13 weist somit eine umgelegte Längsnaht 20 auf. Die Folienränder 17 sind unverschweißt und können deshalb manuell auseinandergezogen werden.By means of an arrangement of the longitudinal welding device 18 according to FIG. 4 can a bag 13 according to FIG. 6 be generated. The longitudinal welding device 18 acts here against the folded fin 22 and against the filling tube 7. The corresponding bag 13 thus has a folded-over longitudinal seam 20. The film edges 17 are unwelded and can therefore be pulled apart manually.

Die erzeugten Beutel 13 (Figur 5, Figur 6) können auf die Kanten 21 gestellt werden, an denen die Längsnaht 20 nicht vorkommt. Dann kann die oben liegende Längsnaht 20 geöffnet werden, um Produkt aus dem Beutel 13 zu entnehmen. Die Kanten 21 stabilisieren den Beutel 13. Es könnte auch die an der Längsnaht 20 angrenzende Kante 21 dicht verschlossen sein und in der Längsnaht 20 könnte sich ein doppelseitig klebender Klebestreifen oder ein Zipp-Wiederverschlussstreifen befinden, um eine einfache Wiederverschließung des Beutels 13 zu erreichen. Alternativ dazu kann auch die Längsnaht 20 fest verschweißt werden und die benachbarte Kante 21 mit einer Wiederverschließhilfe versehen werden. Dazu müsste dann die Einrichtung 31 ein wenig zur Mitte 36 der Folienbahn 2 versetzt werden.

1
Schlauchbeutelmaschine
2
Folienbahn
3
Vorratsrolle
4
Umlenkrolle
5
Formschulter
6
Folienabzug
7
Füllrohr
8
Folienschlauch
9
Backe
10
Querschweißeinrichtung
11
Quemaht
12
Trenneinrichtung
13
Beutel
14
Spreizelement
15
Kantenschweißeinrichtung
16
Schlauchrand
17
Folienrand, unverschweißt
18
Längsschweißeinrichtung
19
Bereich
20
Längsnaht
21
verschweißte Kante
22
Flosse
23
Gegenhalter
24, 25
Paar
26
Seitenfaltenerzeuger
27
Abstand
28
Schlitz
29
Folienrückhalter
30
Folienspreizer
31
Einrichtung zum Anbringen
32
Beutelöffnungshilfe
33
Seitenfalte
34, 35
Kragen-Brustteil
36
Mitte der Folienbahn 2
The generated bags 13 ( FIG. 5 . FIG. 6 ) can be placed on the edges 21, where the longitudinal seam 20 does not occur. Then the overhead longitudinal seam 20 can be opened to remove product from the bag 13. The edges 21 stabilize the bag 13. It could also be tightly closed at the longitudinal seam 20 edge 21 and in the longitudinal seam 20 could be a double-sided adhesive strip or Zipp-Wiederverschlussstreifen to achieve a simple reclosure of the bag 13. Alternatively, the longitudinal seam 20 can be firmly welded and the adjacent edge 21 can be provided with a Wiederverschließhilfe. For this purpose, the device 31 would then have to be slightly offset from the center 36 of the film web 2.
1
Fill and seal machine
2
sheet
3
supply roll
4
idler pulley
5
forming shoulder
6
film take-off
7
filling pipe
8th
film tube
9
jaw
10
Transverse welding device
11
Quemaht
12
separator
13
bag
14
spreader
15
Edge welding device
16
hose edge
17
Foil edge, unwelded
18
Longitudinal welding device
19
Area
20
longitudinal seam
21
welded edge
22
fin
23
backstop
24, 25
Pair
26
Gusseted producer
27
distance
28
slot
29
foil retainer
30
film spreader
31
Device for attaching
32
Bag opening aid
33
gusset
34, 35
Collar chest piece
36
Center of the film web 2

Claims (10)

  1. A tubular-bag machine (1) comprising a foil web (2), a supply roll (3), deflection rollers (4) for feeding the planar foil web (2) to a forming shoulder (5), a foil draw-off device (6) for transporting the foil web, a filler tube (7) for receiving the foil web (2) which has been formed into a foil tube (8), wherein the foil edges (17) of the foil web (2) lie on top of one another, jaws (9) of a transverse sealing means (10) for producing transverse seams (11), a cutting means (12) for cutting through the foil tube (8), and flat spreading members (14) connected to the filler tube (7) and extending away from the filler tube (7), wherein an edge sealing means (15) is provided for each spreading member (14) downstream thereof in the foil transportation direction and faces the tube edge (16) which has been deflected outwards by a respective spreading member (14), characterised in that the forming shoulder (5) is formed by an asymmetrical forming shoulder (5) with collar-breast parts (34, 35) of different lengths, in that a separate longitudinal sealing means (18) is provided for sealing the region (19) adjacent to the tube edge (16), wherein the longitudinal sealing means (18) is displaced towards the foil edges (17) in relation to the adjacent edge sealing means (15), the foil edges (17) extend away from the foil tube (8) in the form of a fin (22) or rest against the foil tube (8), and the longitudinal sealing means (18) is spaced from the foil edges (17) so that the foil edges (17) remain unsealed and can be taken hold of and drawn apart manually in order in this way to open the bag.
  2. A tubular-bag machine according to claim 1, characterised in that the foil draw-off device (6) is a continuously operating foil draw-off device (6), and in that both the longitudinal sealing means (18) and the edge sealing means (15) are continuously driven sealing means, in particular circumferential sealing bands.
  3. A tubular-bag machine according to claim 1, characterised in that the foil draw-off device is an intermittently operating foil draw-off device, and both the longitudinal sealing means and the edge sealing means are intermittently driven sealing means, in particular heat-sealing jaws.
  4. A tubular-bag machine according to at least one of claims 1 to 3, characterised in that two pairs (24, 25) of gusset formers (26) are provided on the transverse sealing means (10), in that the two gusset formers (26) of a pair (24, 25) are movable towards one another and into the foil tube (8) arranged between them, and in that one pair (24) is provided upstream and one pair (25) is provided downstream of the transverse sealing means (10) in the foil transportation direction.
  5. A tubular-bag machine according to claim 4, characterised in that the distance (27) of one pair (24) from the transverse sealing means (10), seen in the foil transportation direction, is equal to the distance (27) of the other pair (25) from the transverse sealing means (10).
  6. A tubular-bag machine according to at least one of claims 1 to 5, characterised in that the forming shoulder (5) has a lateral slot (28), through which the foil edge (17) is guided out.
  7. A tubular-bag machine according to at least one of claims 1 to 6, characterised in that two foil retainers (29) are provided in the region of the forming shoulder (5) and are each arranged between two foil spreaders (30) in order to preform the foil tube (8) for sealing the edges (21).
  8. A tubular-bag machine according to claim 7, characterised in that the foil spreaders (30) are mounted on the filler tube (7).
  9. A tubular-bag machine according to at least one of claims 1 to 8, characterised in that a means (31) for applying a bag opening aid (32) or a reclosing aid is applied to the planar foil web (2), and this aid is provided for running into the longitudinal seam (20) and/or the edges (21) to be sealed.
  10. A tubular-bag machine according to claim 9, characterised in that the aid is formed by a strip-type peelable layer, a double-sided adhesive strip or a reclosable zipper strip.
EP04014688A 1999-12-01 2000-11-23 Machine for making tubular bags Expired - Lifetime EP1462364B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19957891A DE19957891A1 (en) 1999-12-01 1999-12-01 Tubular bag machine
DE19957891 1999-12-01
EP00125666A EP1106508B1 (en) 1999-12-01 2000-11-23 Machine for making tubular bags

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00125666A Division EP1106508B1 (en) 1999-12-01 2000-11-23 Machine for making tubular bags

Publications (3)

Publication Number Publication Date
EP1462364A1 EP1462364A1 (en) 2004-09-29
EP1462364B1 EP1462364B1 (en) 2005-10-12
EP1462364B2 true EP1462364B2 (en) 2009-07-22

Family

ID=7931038

Family Applications (3)

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EP00125666A Revoked EP1106508B1 (en) 1999-12-01 2000-11-23 Machine for making tubular bags
EP04014688A Expired - Lifetime EP1462364B2 (en) 1999-12-01 2000-11-23 Machine for making tubular bags
EP04014687A Revoked EP1464578B1 (en) 1999-12-01 2000-11-23 Machine for making tubular bags

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EP00125666A Revoked EP1106508B1 (en) 1999-12-01 2000-11-23 Machine for making tubular bags

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EP04014687A Revoked EP1464578B1 (en) 1999-12-01 2000-11-23 Machine for making tubular bags

Country Status (5)

Country Link
US (1) US6729112B2 (en)
EP (3) EP1106508B1 (en)
AT (3) ATE306420T1 (en)
DE (4) DE19957891A1 (en)
ES (3) ES2242176T3 (en)

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EP1106508B1 (en) 2004-09-08
EP1464578B1 (en) 2005-06-29
US20010005979A1 (en) 2001-07-05
ES2242176T3 (en) 2005-11-01
ES2250945T5 (en) 2009-12-11
EP1106508A1 (en) 2001-06-13
EP1462364A1 (en) 2004-09-29
ATE275499T1 (en) 2004-09-15
US6729112B2 (en) 2004-05-04
EP1462364B1 (en) 2005-10-12
DE50011347D1 (en) 2006-02-23
DE19957891A1 (en) 2001-06-07
DE50007676D1 (en) 2004-10-14
ES2228384T3 (en) 2005-04-16
ATE306420T1 (en) 2005-10-15
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ATE298703T1 (en) 2005-07-15
EP1464578A1 (en) 2004-10-06

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