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EP1462364A1 - Machine for making tubular bags - Google Patents

Machine for making tubular bags Download PDF

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Publication number
EP1462364A1
EP1462364A1 EP04014688A EP04014688A EP1462364A1 EP 1462364 A1 EP1462364 A1 EP 1462364A1 EP 04014688 A EP04014688 A EP 04014688A EP 04014688 A EP04014688 A EP 04014688A EP 1462364 A1 EP1462364 A1 EP 1462364A1
Authority
EP
European Patent Office
Prior art keywords
film
edge
welding device
edges
tubular bag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04014688A
Other languages
German (de)
French (fr)
Other versions
EP1462364B2 (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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
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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
Application granted granted Critical
Publication of EP1462364B1 publication Critical patent/EP1462364B1/en
Publication of EP1462364B2 publication Critical patent/EP1462364B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 with a film web, one Supply roll, deflection rolls for feeding the flat film web to one Form shoulder, a film take-off for transporting the film web, a filling tube for Picking up the film web formed into a film tube, baking one Cross welding device for the production of cross seams, a separating device for Cutting the film tube and connected to the filling tube from the filling tube pointing, flat expansion elements, the in the film transport direction Spreading elements one edge welding device per each Spreading element is provided, which against that of one spreading element deflected hose edge is directed.
  • Such a known tubular bag machine is used to manufacture Tubular bags, the four edges of which are welded. These tubular bags have one relatively good stability.
  • tubular bag machine is known from IT 0 127 41 00 B. known in which a near-edge fin of a longitudinal seam on a film tube is applied.
  • a bag with only four longitudinal weld seams does not have that Longitudinal seam impairing bag printing.
  • the known tubular bag machines do not offer the possibility of bags with good handle opening aid or resealable aid so that they Help uses the special shape of the bag welded along its four edges.
  • the invention is based on the problem of this disadvantage Eliminate tubular bag machine according to the preamble of claim 1.
  • a separate longitudinal welding device for welding the edge of the hose adjacent area provided through the use of asymmetrical
  • the longitudinal seam which otherwise runs in the middle of the bag, becomes the form shoulder in the area one edge of the bag, so that a separate, central longitudinal seam no longer occurs
  • the longitudinal welding device (18) compared to it adjacent edge welding device (15) is offset towards the film edges (17)
  • the film edges (17) in the form of a fin (22) point away from the film tube (8) or rest against the film tube (8)
  • the longitudinal welding device (18) one Has a distance from the film edges (17) so that the film edges (17) remain unwelded.
  • the unwelded edges can be gripped and manually be pulled apart to open the bag.
  • the invention has the advantage that as a result of the two on a hose edge provided welding devices, namely an edge welding device and the separate longitudinal welding device, two longitudinal seams directly next to each other in the area the edge of the tube on which the film tube is closed lengthwise become.
  • one seam can be considered to be relatively tear-proof and non-resealable seam may be provided, and the other seam may be considered light openable or serve as a reclosable seam.
  • a seam is fulfilled primarily the purpose of bag stabilization due to their edge welding and the other seam serves as a secure bag closure.
  • the edges sealing seams generally have a lower strength than the bags welding longitudinal seam.
  • a bag produced in this way is also particularly important when the outer, ie. H.
  • the first seam to be opened is a seam that can be opened easily, and the subsequent seam fulfills the function of edge stabilization.
  • the first the seam to be opened can have a reclosing aid.
  • the proposed tubular bag machine is used both for the production of bags, the edge of the film in the form of a fin points away from the bag (film tube), as well for bags, the foil edge in the form of an overlap seam or a fin on Bag (film tube) is in contact.
  • the concern can e.g. B. by means of a corresponding Welding can be provided.
  • the tubular bag machine can be operated continuously or clocked.
  • the film take-off is carried out accordingly.
  • the mode of operation is suitable for longitudinal sealing tapes (Claim 2) and a rotating system of cross jaws. Heat-sealing jaws, the can be operated in cycles (claim 3) in a clocked mode of operation be used.
  • Gussets are used to create gussets in the film tube.
  • a pair of gusset generators that move against each other is used to create two to pierce opposite gussets in the film tube.
  • Tubular bag each with two opposite transverse seams welded.
  • These bags are very dimensionally stable. They become top and bottom welded with cross seams.
  • the gussets are in the transverse seams shrink wrapped.
  • the bag is symmetrical with regard to its gusset arrangement and can be relatively round molded to give a can-like appearance in a framed shape have and to serve as a can replacement in the most advantageous way (material saving).
  • the shape shoulder has a side slot through which the film edge is led out (claim 6), the tubular bag machine with a conventional, but slotted, asymmetrical shaped shoulder become.
  • a preforming of the edges can be done in a technically simple manner and independently of the operating mode of the tubular bag machine take place if according to claim 7 in Area of the form shoulder two film retainers are provided, each between Two film spreaders are arranged around the film tube for one Preform edge welding. These film spreaders are used for a safe Preforming attached to the fill pipe (claim 8).
  • Is a device for attaching a bag opening aid on the flat film web or a resealable aid, and is this help for the entry into the Longitudinal seam and / or the edges to be welded are provided (claim 9), so a selected seam can be equipped with appropriate help.
  • a stripe-shaped peel layer to achieve an easy opening after gripping the film edges
  • a double-sided adhesive tape to ensure a secure closure in connection with a To achieve reclosability, as well as a zipper reclosure strip to in particular to be able to use repeated reclosing.
  • a flat film web 2 is separated from one Unwrapped supply roll 3 and an asymmetrical via a guide roller 4 Form shoulder 5 fed ( Figure 1).
  • the collar-chest parts 34, 35 of the shape shoulder 5 are of different lengths.
  • 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.
  • Jaws 9 of a transverse welding device 10 which are movable against one another serve the purpose Generation of transverse seams 11 on the film tube 8.
  • the filling tube 7 fills the generated seams Pouch 13.
  • the shape shoulder 7 offsets the film edges 17 lying one on top of the other to the right the side of the film tube 8.
  • a separate longitudinal welding device 18 is for a welding of the area 19 adjacent to the hose edge 16 is provided, to create two welds directly next to each other.
  • Longitudinal welding device 18 produces 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 opposite to that adjacent to it Edge welding device 15 offset towards the film edge 17.
  • the film edge 17 itself remains unwelded and points in the form of a fin 22 away from the film tube 8. By pulling apart the film edges 17, the fin 22 and thus a bag can 13 can be torn open.
  • the film take-off 6 is operated continuously.
  • the longitudinal welding device 18 and the edge welding devices 15 are continuously driven, rotating Sealing bands.
  • the edge welding devices 15 each have a counter holder 23 on.
  • a pair 24 is in front of the film transport direction and a pair 25 provided after the cross welder 10.
  • the distance 27 of the is a pair 24 from the cross sealer 10, in the film transport direction seen, equal to the distance 27 of the other pair 25 from the Cross welding device 10.
  • the shape shoulder 5 has a lateral slot 28 through which the film edge 17 is led out ( Figure 1).
  • two film retainers 29 provided on the filling tube 7, each arranged between two film spreaders 30 are to preform the film tube 8 for welding the edges 21.
  • the bag opening aid 32 is one strip-shaped peel layer, which runs into the longitudinal seam 20 and serves one bags 13 produced in this way (FIG. 5) can be opened more easily.
  • the bag 13 has four side folds 33 and is by means of the head and bottom one transverse seam 11 each closed. Next to one of its four welded edges 21 runs its longitudinal seam 20. Its fin 22 protrudes from the bag 13.
  • Peel layer within the longitudinal seam 20 enables the longitudinal seam to be opened easily 20 by winding.
  • FIG Bags 13 An arrangement of the longitudinal welding device 18 according to FIG Bags 13 are generated according to Figure 6.
  • the longitudinal welding device 18 acts here against the flipped fin 22 and against the filling tube 7.
  • the corresponding bag 13 thus has a folded longitudinal seam 20.
  • the film edges 17 are unwelded and can therefore be pulled apart manually.

Landscapes

  • 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 with a film web, one Supply roll, deflection rolls for feeding the flat film web to one Form shoulder, a film take-off for transporting the film web, a filling tube for Picking up the film web formed into a film tube, baking one Cross welding device for the production of cross seams, a separating device for Cutting the film tube and connected to the filling tube from the filling tube pointing, flat expansion elements, the in the film transport direction Spreading elements one edge welding device per each Spreading element is provided, which against that of one spreading element deflected hose edge is directed.

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 manufacture Tubular bags, the four edges of which are welded. These tubular bags have one 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.In a tubular bag machine known from EP 0 627 355 A, a symmetrical shape shoulder produces a longitudinal seam arranged in the middle of the bag. The Edges of the bag are welded separately, leaving one bag five along has running 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, such a tubular bag machine is known from IT 0 127 41 00 B. known in which a near-edge fin of a longitudinal seam on a film tube is applied.

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 weld seams does not have that Longitudinal seam impairing bag printing. For making a bag with a longitudinal seam in the middle that interrupts the bag printing there conventional, symmetrical shape shoulder 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 of bags with good handle opening aid or resealable aid so that they Help uses the special shape of the bag welded along its four edges.

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 problem of this disadvantage Eliminate 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 problem is solved in accordance with the characterizing part of claim 1 a separate longitudinal welding device for welding the edge of the hose adjacent area provided through the use of asymmetrical The longitudinal seam, which otherwise runs in the middle of the bag, becomes the form shoulder in the area one edge of the bag, so that a separate, central longitudinal seam no longer occurs, the longitudinal welding device (18) compared to it adjacent edge welding device (15) is offset towards the film edges (17), the film edges (17) in the form of a fin (22) point away from the film tube (8) or rest against the film tube (8), and the longitudinal welding device (18) one Has a distance from the film edges (17) so that the film edges (17) remain unwelded. The unwelded edges can be gripped and manually be pulled apart to 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 as a result of the two on a hose edge provided welding devices, namely an edge welding device and the separate longitudinal welding device, two longitudinal seams directly next to each other in the area the edge of the tube on which the film tube is closed lengthwise become. Of these two longitudinal seams, one seam can be considered to be relatively tear-proof and non-resealable seam may be provided, and the other seam may be considered light openable or serve as a reclosable seam. Or a seam is fulfilled primarily the purpose of bag stabilization due to their edge welding and the other seam serves as a secure bag closure. Then z. B. the edges sealing seams generally have a lower strength than the bags 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.A bag produced in this way is also particularly important when the outer, ie. H. the first seam to be opened is a seam that can be opened easily, and the subsequent seam fulfills the function of edge stabilization. The first the seam to be opened can 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.Is the longitudinal welding device compared to the adjacent edge welding device offset to the edge of the film, so the longitudinal welding device Closure of the film tube at the point where the two film edges meet. An edge area adjoins these edges. This Arrangement allows the production of welded on four edges in a simple manner Bags with longitudinal seam bounded by an edge. The edge can also be without Bag sealing property can be formed.

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 edge of the film in the form of a fin points away from the bag (film tube), as well for bags, the foil edge in the form of an overlap seam or a fin on Bag (film tube) is in contact. The concern can e.g. B. by means of a corresponding Welding can be provided.

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. The film take-off is carried out accordingly. For a continuous The mode of operation is suitable for longitudinal sealing tapes (Claim 2) and a rotating system of cross jaws. Heat-sealing jaws, the can be operated in cycles (claim 3) in a clocked mode of operation be used.

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. On A pair of gusset generators that move against each other is used to create two to pierce opposite gussets in the film tube. Be like that by means of two pairs of gussets, one pair in Foil transport direction before and a pair after the cross sealing device is (claim 4), tubular bag, each with two opposite transverse seams welded. These bags are very dimensionally stable. They become top and bottom welded with cross seams. The gussets are in the transverse seams shrink wrapped. Is the distance of the one pair from the cross welding device the same the distance of the other pair from the cross welding device (claim 5) the bag is symmetrical with regard to its gusset arrangement and can be relatively round molded to give a can-like appearance in a framed shape have and to serve as a can replacement in the most advantageous way (material saving).

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. The shape shoulder has a side slot through which the film edge is led out (claim 6), the tubular bag machine with a conventional, but slotted, asymmetrical shaped shoulder become.

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 simple manner and independently of the operating mode of the tubular bag machine take place if according to claim 7 in Area of the form shoulder two film retainers are provided, each between Two film spreaders are arranged around the film tube for one Preform edge welding. These film spreaders are used for a safe Preforming attached to the fill pipe (claim 8).

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.Is a device for attaching a bag opening aid on the flat film web or a resealable aid, and is this help for the entry into the Longitudinal seam and / or the edges to be welded are provided (claim 9), so a selected seam can be equipped with appropriate help. As help are particularly suitable according to claim 10, a stripe-shaped peel layer to achieve an easy opening after gripping the film edges, a double-sided adhesive tape to ensure a secure closure in connection with a To achieve reclosability, as well as a zipper reclosure strip to in particular to be able to use repeated reclosing.

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.
The tubular bags produced and the tubular bag machine according to the invention are described in more detail below with reference to figures which illustrate exemplary embodiments. It shows:
Figure 1
In a side view, the principle of a tubular bag machine for producing a tubular bag with an asymmetrical shape shoulder for forming a flat film web into a film tube, a tapered filling tube, flat expansion elements, closed, circumferential jaws of a cross-welding device, with edge welding devices directed against the deflected tube edges, and a separate longitudinal welding device ;
Figure 2
in a section along AA of Figure 1, the fill tube with four film spreaders and one film retainer between two film spreaders;
Figure 3
in a section along BB of Figure 1, the filling tube with four expansion elements, one edge welding device per expansion element, and a separate, additional longitudinal welding device on the edge of the tube, the film edges remain unwelded in order to be able to open the generated tubular bag in a simple manner.
Figure 4
in a section, an object analogous to Figure 3, but with folded hose edge and offset, modified longitudinal welding device, the film edges also remain unwelded;
Figure 5
in a perspective view a tubular bag with two side gussets per side and with welded edges provided on each of the two edges of the two sides and parallel to a longitudinal seam, and
Figure 6
a perspective view of a tubular bag analogous to Figure 5, but with a folded edge region 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 Quemähten 11 am Folienschlauch 8. In einer der Backen 9 befindet sich eine Trenneinrichtung 12 zur Durchtrennung des Folienschlauches 8 zwischen jeweils zwei Quemähten 11. Durch das Füllrohr 7 erfolgt eine Befüllung der erzeugten Beutel 13.In the case of a vertical tubular bag machine 1, a flat film web 2 is separated from one Unwrapped supply roll 3 and an asymmetrical via a guide roller 4 Form shoulder 5 fed (Figure 1). The collar-chest parts 34, 35 of the shape shoulder 5 are of different lengths. 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. Jaws 9 of a transverse welding device 10 which are movable against one another serve the purpose Generation of transverse seams 11 on the film tube 8. Located in one of the jaws 9 there is a separating device 12 for severing the film tube 8 between two transverse seams 11 each. The filling tube 7 fills the generated seams Pouch 13.

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 pipe 7 are four flat expansion elements 14 pointing away from the filling pipe 7 connected (Figures 3). The spreading elements 14 in the film transport direction subordinate, d. H. below the spreading elements 14 is one Edge welding device 15 is provided per expansion element 14, each against a spreading element 14 directed hose edge 16 is directed.

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. Die The shape shoulder 7 offsets the film edges 17 lying one on top of the other to the right the side of the film tube 8. A separate longitudinal welding device 18 is for a welding of the area 19 adjacent to the hose edge 16 is provided, to create two welds directly next to each other. 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 produces 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 opposite to that adjacent to it Edge welding device 15 offset towards the film edge 17. The film edge 17 itself remains unwelded and points in the form of a fin 22 away from the film tube 8. By pulling apart the film edges 17, the fin 22 and thus a bag can 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 welding device 18 and the edge welding devices 15 are continuously driven, rotating Sealing bands. The edge welding devices 15 each have a counter holder 23 on.

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.There are two pairs 24, 25 of gusset generators 26 on the transverse welding device 10 intended. The two gusset generators 26 of a pair 24, 25 are against each other and in the film tube 8 between them movable To produce gussets in the bag 13. A pair 24 is in front of the film transport direction and a pair 25 provided after the cross welder 10. The distance 27 of the is a pair 24 from the cross sealer 10, in the film transport direction seen, equal to the distance 27 of the other pair 25 from the Cross 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 shape shoulder 5 has a lateral slot 28 through which the film edge 17 is led out (Figure 1). In the area of the shape shoulder 5 are two film retainers 29 provided on the filling tube 7, each arranged between two film spreaders 30 are to preform the film tube 8 for welding 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 is a device 31 for attaching a Bag opening aid 32 attached (Figure 1). The bag opening aid 32 is one strip-shaped peel layer, which runs into the longitudinal seam 20 and serves one bags 13 produced in this way (FIG. 5) can be opened more easily.

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. Die The bag 13 has four side folds 33 and is by means of the head and bottom one transverse seam 11 each closed. Next to one of its four welded edges 21 runs its longitudinal seam 20. Its fin 22 protrudes 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 enables the longitudinal seam to be opened easily 20 by winding.

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.An arrangement of the longitudinal welding device 18 according to FIG Bags 13 are generated according to Figure 6. The longitudinal welding device 18 acts here against the flipped fin 22 and against the filling tube 7. The corresponding bag 13 thus has a folded 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
Quernaht
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 bags 13 produced (FIG. 5, FIG. 6) can be placed on the edges 21 on which the longitudinal seam 20 does not occur. Then the longitudinal seam 20 lying at the top can be opened in order to remove product from the bag 13. The edges 21 stabilize the bag 13. The edge 21 adjacent to the longitudinal seam 20 could also be tightly closed and in the longitudinal seam 20 there could be a double-sided adhesive strip or a zip reclosure strip in order to achieve a simple reclosure of the bag 13. Alternatively, the longitudinal seam 20 can also be welded tightly and the adjacent edge 21 can be provided with a reclosing aid. For this purpose, the device 31 would then have to be moved a little to 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
cross seam
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
Attachment device
32
Bag opening aid
33
gusset
34, 35
Collar chest piece
36
Center of the film web 2

Claims (10)

Schlauchbeutelmaschine (1) mit einer Folienbahn (2), einer Vorratsrolle (3), Umlenkrollen (4) zur Zuführung der ebenen Folienbahn (2) zu einer Formschulter (5), einem Folienabzug (6) zum Transport der Folienbahn (2), einem Füllrohr (7) zur Aufnahme der zu einem Folienschlauch (8) umgeformten Folienbahn (2), wobei die Folienränder (17) der Folienbahn (2) aufeinanderliegen, Backen (9) einer Querschweißeinrichtung (10) zur Erzeugung von Quernähten (11), einer Trenneinrichtung (12) zur Durchtrennung des Folienschlauches (8) und mit dem Füllrohr (7) verbundenen, vom Füllrohr (7) weg weisenden flachen Spreizelementen (14), wobei in Folientransportrichtung den Spreizelementen (14) nachgeordnet jeweils eine Kantenschweißeinrichtung (15) pro Spreizelement (14) vorgesehen ist, die gegen den von jeweils einem Spreizelement (14) ausgelenkten Schlauchrand (16) gerichtet ist, dadurch gekennzeichnet, dass als Formschulter (5) eine asymmetrische Formschulter (5) mit verschieden langen Kragen-Brustteilen (34, 35) vorgesehen ist, dass eine separate Längsschweißeinrichtung (18) für eine Verschweißung des dem Schlauchrand (16) benachbarten Bereichs (19) vorgesehen ist, 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.Tubular bag machine (1) with a film web (2), a supply roll (3), deflection rollers (4) for feeding the flat film web (2) to a shaped shoulder (5), a film take-off (6) for transporting the film web (2), one Filling tube (7) for receiving the film web (2) formed into a film tube (8), the film edges (17) of the film web (2) lying one on top of the other, jaws (9) of a transverse welding device (10) for producing transverse seams (11), one Separating device (12) for severing the film tube (8) and flat expansion elements (14) connected to the filling tube (7) and pointing away from the filling tube (7), with an edge welding device (15) per expansion element arranged downstream of the expansion elements (14) (14) is provided, which is directed against the hose edge (16) deflected by a respective expansion element (14), characterized in that an asymmetrical shape shoulder (5) with collar B of different lengths is used as the shape shoulder (5) rust parts (34, 35) is provided that a separate longitudinal welding device (18) is provided for welding the area (19) adjacent to the hose edge (16), the longitudinal welding device (18) being opposite the edge welding device (15) adjacent to the film edges (17) is offset, the film edges (17) in the form of a fin (22) point away from the film tube (8) or rest 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. Schlauchbeutelmaschine nach Anspruch 1, dadurch gekennzeichnet, dass der Folienabzug (6) ein kontinuierlich betriebener Folienabzug (6) ist, und dass sowohl die Längsschweißeinrichtung (18) als auch die Kantenschweißeinrichtungen (15) kontinuierlich angetriebene Schweißeinrichtungen, insbesondere umlaufende Siegelbänder sind.Tubular bag machine according to claim 1, characterized in that the film take-off (6) is a continuously operated film take-off (6) and that both the longitudinal welding device (18) and the edge welding devices (15) are continuously driven welding devices, in particular circumferential sealing tapes. Schlauchbeutelmaschine nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, dass der Folienabzug ein getaktet betriebener Folienabzug ist, und sowohl die Längsschweißeinrichtung als auch die Kantenschweißeinrichtungen getaktet angetriebene Schweißeinrichtungen, insbesondere Heißsiegelbacken sind. Tubular bag machine according to claim 1 or claim 2, characterized in that the film take-off is a clocked operated film take-off, and both the longitudinal welding device and the edge welding devices are clocked driven welding devices, in particular heat sealing jaws. Schlauchbeutelmaschine nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass an der Querschweißeinrichtung (10) zwei Paar (24, 25) Seitenfaltenerzeuger (26) vorgesehen sind, dass die beiden Seitenfaltenerzeuger (26) eines Paars (24, 25) gegeneinander und in den zwischen ihnen befindlichen Folienschlauch (8) bewegbar sind, und dass ein Paar (24) in Folientransportrichtung vor und ein Paar (25) nach der Querschweißeinrichtung (10) vorgesehen ist.Tubular bag machine according to at least one of claims 1 to 3, characterized in that two pairs (24, 25) of side gusset generators (26) are provided on the transverse welding device (10), that the two side gusset generators (26) of a pair (24, 25) against each other and in the film tube (8) located between them, and that a pair (24) is provided in the film transport direction before and a pair (25) after the cross sealing device (10). Schlauchbeutelmaschine nach Anspruch 4, dadurch gekennzeichnet dass der Abstand (27) des einen Paars (24) von der Querschweißeinrichtung (10), in Folientransportrichtung gesehen, gleich dem Abstand (27) des anderen Paars (25) von der Querschweißeinrichtung (10) ist.Tubular bag machine according to claim 4, characterized in that the distance (27) of the one pair (24) from the cross sealing device (10), seen in the film transport direction, is equal to the distance (27) of the other pair (25) from the cross sealing device (10). Schlauchbeutelmaschine nach mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Formschulter (5) einen seitlichen Schlitz (28) aufweist, durch den der Folienrand (17) herausgeführt wird.Tubular bag machine according to at least one of claims 1 to 5, characterized in that the shaped shoulder (5) has a lateral slot (28) through which the film edge (17) is led out. Schlauchbeutelmaschine nach mindestens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass im Bereich der Formschulter (5) zwei Folienrückhalter (29) vorgesehen sind, die jeweils zwischen zwei Folienspreizern (30) angeordnet sind, um den Folienschlauch (8) für eine Verschweißung der Kanten (21) vorzuformen.Tubular bag machine according to at least one of claims 1 to 6, characterized in that two film retainers (29) are provided in the region of the shaped shoulder (5), each of which is arranged between two film spreaders (30) in order to seal the film tube (8) Preform edges (21). Schlauchbeutelmaschine nach Anspruch 7, dadurch gekennzeichnet, dass die Folienspreizer (30) am Füllrohr (7) angebracht sind.Tubular bag machine according to claim 7, characterized in that the film spreaders (30) are attached to the filling tube (7). Schlauchbeutelmaschine nach mindestens einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass an der ebenen Folienbahn (2) eine Einrichtung (31) zum Anbringen einer Beutelöffnungshilfe (32) oder einer Wiederverschließhilfe angebracht ist, und diese Hilfe zum Einlauf in die Längsnaht (20) und/oder die zu verschweißenden Kanten (21) vorgesehen ist.Tubular bag machine according to at least one of claims 1 to 8, characterized in that a device (31) for attaching a bag opening aid (32) or a reclosing aid is attached to the flat film web (2), and this aid for entry into the longitudinal seam (20) and / or the edges (21) to be welded are provided. Schlauchbeutelmaschine nach Anspruch 9, dadurch gekennzeichnet, dass als Hilfe eine streifenförmige Peelschicht, ein doppelseitig klebender Klebestreifen oder ein Zipp-Wiederverschlussstreifen vorgesehen ist.Tubular bag machine according to claim 9, characterized in that a strip-shaped peel layer, a double-sided adhesive strip or a zip reclosure strip is provided as an aid.
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
DE19957891 1999-12-01
DE19957891A DE19957891A1 (en) 1999-12-01 1999-12-01 Tubular bag machine
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)

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

Family

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EP00125666A Revoked EP1106508B1 (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
EP04014688A Expired - Lifetime EP1462364B2 (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
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) ATE298703T1 (en)
DE (4) DE19957891A1 (en)
ES (3) ES2242176T3 (en)

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Also Published As

Publication number Publication date
EP1464578A1 (en) 2004-10-06
ATE298703T1 (en) 2005-07-15
ES2250945T3 (en) 2006-04-16
EP1462364B2 (en) 2009-07-22
EP1464578B1 (en) 2005-06-29
ATE306420T1 (en) 2005-10-15
ES2250945T5 (en) 2009-12-11
EP1106508B1 (en) 2004-09-08
US6729112B2 (en) 2004-05-04
EP1462364B1 (en) 2005-10-12
DE50011347D1 (en) 2006-02-23
ES2242176T3 (en) 2005-11-01
US20010005979A1 (en) 2001-07-05
EP1106508A1 (en) 2001-06-13
DE50010650D1 (en) 2005-08-04
DE50007676D1 (en) 2004-10-14
ATE275499T1 (en) 2004-09-15
DE19957891A1 (en) 2001-06-07
ES2228384T3 (en) 2005-04-16

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