DE102012218844A1 - Method for producing packaging units in a tubular bag machine - Google Patents

Method for producing packaging units in a tubular bag machine Download PDF

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Publication number
DE102012218844A1
DE102012218844A1 DE102012218844.4A DE102012218844A DE102012218844A1 DE 102012218844 A1 DE102012218844 A1 DE 102012218844A1 DE 102012218844 A DE102012218844 A DE 102012218844A DE 102012218844 A1 DE102012218844 A1 DE 102012218844A1
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DE
Germany
Prior art keywords
film
transverse sealing
sealing device
transverse
film tube
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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.)
Withdrawn
Application number
DE102012218844.4A
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German (de)
Inventor
Peter Lökös
Markus Schmachtel
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Hastamat Verpackungstechnik GmbH and Co KG
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Hastamat Verpackungstechnik GmbH and Co KG
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Application filed by Hastamat Verpackungstechnik GmbH and Co KG filed Critical Hastamat Verpackungstechnik GmbH and Co KG
Priority to DE102012218844.4A priority Critical patent/DE102012218844A1/en
Priority to EP13745368.4A priority patent/EP2909087A1/en
Priority to CN201380053875.1A priority patent/CN104812673A/en
Priority to PCT/EP2013/065022 priority patent/WO2014060127A1/en
Priority to US14/434,849 priority patent/US20150274334A1/en
Publication of DE102012218844A1 publication Critical patent/DE102012218844A1/en
Withdrawn legal-status Critical Current

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    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/067—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it 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
    • B65B23/00—Packaging fragile or shock-sensitive articles other than bottles; Unpacking eggs
    • B65B23/10—Packaging biscuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/343—Making tension-free or wrinkle-free joints
    • B29C66/3432—Making tension-free or wrinkle-free joints by holding the material loose or tension-free during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • B29C66/83543—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement cooperating flying jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/005—Packaging other articles presenting special problems packaging of confectionery
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/44—Arranging and feeding articles in groups by endless belts or chains
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/50—Stacking one article, or group of articles, upon another before packaging
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Herstellung von Verpackungseinheiten (20) in einer Schlauchbeutelmaschine, bei dem in Portionsstapeln (10) aufeinander liegend angeordnete scheibenförmige Produkte (11) vertikal gefördert und von einer mittels einer Folienabzugseinrichtung parallel geförderten Folienbahn umhüllt werden, wobei die Folienbahn zur Ausbildung eines Folienschlauchs (12) mittels einer Längssiegeleinrichtung mit einer Längssiegelnaht und nachfolgend oberhalb und unterhalb der Portionsstapel mittels einer unabhängig von der Folienabzugseinrichtung von einer Antriebseinrichtung angetriebenen und während eines Siegelkontakts zur Folienbahn in dieselbe Richtung wie die Folienbahn bewegten Quersiegeleinrichtung (14) mit Quersiegelnähten (18) versehen wird, wobei die Quersiegeleinrichtung während des Siegelkontakts zum Folienschlauch eine vertikale Relativbewegung zum Folienschlauch entgegen der Förderrichtung des Folienschlauchs ausführt.The invention relates to a method for producing packaging units (20) in a tubular bag machine, in which disc-shaped products (11) arranged one on top of the other in stacks of portions (10) are conveyed vertically and enveloped by a film web conveyed in parallel by means of a film take-off device, the film web for formation a film tube (12) by means of a longitudinal sealing device with a longitudinal sealing seam and subsequently above and below the stacks of portions by means of a transverse sealing device (14) with transverse sealing seams (18) which is driven independently of the film pull-off device and is moved in the same direction as the film web during sealing contact with the film web is provided, the transverse sealing device executing a vertical relative movement to the film tube against the conveying direction of the film tube during the sealing contact with the film tube.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Verpackungseinheiten in einer Schlauchbeutelmaschine, bei dem in Portionsstapeln aufeinanderliegend angeordnete scheibenförmige Produkte vertikal gefördert und von einer mittels einer Folienabzugseinrichtung parallel geförderten Folienbahn umhüllt werden, wobei die Folienbahn zur Ausbildung eines Folienschlauchs mittels einer Längssiegeleinrichtung mit einer Längssiegelnaht und nachfolgend oberhalb und unterhalb der Portionsstapel mittels einer unabhängig von der Folienabzugseinrichtung von einer Quersiegelantriebseinrichtung angetriebenen und während eines Siegelkontakts zur Folienbahn in dieselbe Richtung wie die Folienbahn bewegten Quersiegeleinrichtung mit Quersiegelnähten versehen wird.The invention relates to a method for the production of packaging units in a tubular bag machine, in which portioned stacked disc-shaped products are vertically conveyed and wrapped by a means of a film removal parallel conveyed film web, the film web for forming a film tube by means of a longitudinal sealing device with a longitudinal sealing seam and below above and below the portion stack is provided with transverse sealing seams by means of a transverse sealing device driven by a transverse sealing drive device independently of the film removal device and moved in the same direction as the film web during a sealed contact to the film web.

Bei der Herstellung von Schlauchbeuteln wird die zunächst flach einer Formschulter zugeleitete Folienbahn mittels der Formschulter in einem Kunststoffschlauch mit überlappenden Längsstoß umgeformt, der zur Aufnahme von parallel der Folienbahn zugeförderten, in einem Portionsstapel aufeinander liegend angeordneten Produkten dient. Nach Versiegelung des Längsstoßes mittels einer Längssiegeleinrichtung erfolgt zur Herstellung einer jeweils einen oder mehrere in Reihe in Förderrichtung hintereinander liegend angeordneter Portionsstapel aufnehmenden Verpackungseinheit die Ausbildung von Quersiegelnähten mittels einer Quersiegeleinrichtung.In the production of tubular bags, the initially flat a forming shoulder fed film web is formed by means of the forming shoulder in a plastic tube with overlapping longitudinal joint, which serves for receiving parallel to the film web conveyed, in a portion stack on top of each other products arranged. After sealing the longitudinal joint by means of a longitudinal sealing device, the formation of transverse sealing seams by means of a transverse sealing device is carried out for producing a respective one or more in series in the conveying direction successively arranged portion stack receiving packaging unit.

Bei den in einem Portionsstapel aufeinander liegend angeordneten scheibenförmigen Produkten hat es sich insbesondere bei keksartigen Artikeln, die sandwichartig zwischen Deckkeksen eine Cremefüllung aufweisen, herausgestellt, dass durch die Ausbildung der Quersiegelnähte Zugspannungen in der Folienbahn entstehen, die Querkräfte auf die Kekse bewirken, welche bei der zum Zeitpunkt der Herstellung der Verpackungseinheiten häufig noch warmen und weichen Cremefüllung eine keilförmige Anstellung der Deckkekse und damit eine unerwünschte Verformung des Produkts verursachen.In the slice-shaped products arranged one above the other in a portion stack, it has been found, in particular in cookie-like articles which have a cream filling sandwiched between the topping biscuits, that tensile stresses in the foil web occur due to the formation of the transverse sealing seams, which cause lateral forces on the biscuits, which in the case of the At the time of manufacture of the packaging units often still warm and soft cream filling cause a wedge-shaped employment of Deckkekse and thus an undesirable deformation of the product.

Eine Möglichkeit, diesen unerwünschten Keileffekt zu vermeiden, besteht darin, bei der Herstellung der Quersiegelnähte zwischen den im Folienschlauch angeordneten Portionsstapeln in Förderrichtung der Folienbahn einen ausreichend großen Abstand zu belassen, sodass die bei der Herstellung der Quersiegelnähte entstehenden Zugspannungen reduziert werden und somit auch die auf die Kekse wirkenden Querkräfte entsprechend kleiner werden. Hiermit sind jedoch eine entsprechende Reduzierung des Füllgrades der einzelnen Verpackungseinheit und eine Erhöhung des Folienbahnverbrauchs verbunden, sodass neben einer Verschlechterung der Produktivität der Produktionseinrichtung auch eine Erhöhung der Herstellungskosten die Folge ist.One way to avoid this undesirable wedge effect is to leave in the production of transverse sealing seams between the arranged in the film tube portion stacks in the conveying direction of the film a sufficiently large distance, so that the resulting in the production of transverse sealing seams tensile stresses are reduced and thus on the biscuits acting lateral forces are correspondingly smaller. This, however, a corresponding reduction in the degree of filling of the individual packaging unit and an increase in the film web consumption are connected, so that in addition to a deterioration of the productivity of the production facility and an increase in manufacturing costs is the result.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zur Herstellung von Verpackungseinheiten in einer Schlauchbeutelmaschine vorzuschlagen, das bei hoher Produktivität der Produktionsanlage eine produktschonende Verpackung ermöglicht.The present invention is therefore based on the object to propose a method for the production of packaging units in a tubular bag machine, which allows product-saving packaging with high productivity of the production plant.

Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a method having the features of claim 1.

Bei dem erfindungsgemäßen Verfahren führt die Quersiegeleinrichtung während des Siegelkontakts zum Folienschlauch eine vertikale Relativbewegung zum Folienschlauch entgegen der Bewegungsrichtung des Folienschlauchs aus.In the method according to the invention, during the sealing contact with the film tube, the transverse sealing device performs a vertical relative movement to the film tube counter to the direction of movement of the film tube.

Aus der Überlagerung der vertikalen Relativbewegung, die entgegen der Bewegungsrichtung des Folienschlauchs stattfindet, ergibt sich aufgrund des Siegelkontakts der Quersiegeleinrichtung zum Folienschlauch ein Aufstauen des Folienschlauchs im Bereich zwischen der Quersiegelnaht und dem oberhalb der Quersiegelnaht angeordneten Portionsstapel. Dieses Aufstauen führt dazu, dass der Folienschlauch im Bereich des unteren Endes der jeweiligen Verpackungseinheit im Wesentlichen frei von Zugspannungen bleibt und sich ein schlaffer Beutelzwickel ausbildet.From the superimposition of the vertical relative movement, which takes place counter to the direction of movement of the film tube, due to the sealing contact of the transverse sealing device to the film tube results in a damming of the film tube in the region between the transverse seal and the above the transverse seal seam portion stack. This damming causes the film tube in the region of the lower end of the respective packaging unit remains substantially free of tensile stresses and forms a limp Beutelzwickel.

Hierdurch ist sichergestellt, dass durch die Ausbildung der Versiegelung im Bereich der Quersiegelnaht keine Zugspannungen im Folienschlauch induziert werden, die unerwünschte Seitenkräfte auf das untere Ende des Portionsstapels bewirken.This ensures that no tensile stresses are induced in the film tube by the formation of the seal in the transverse seal, which cause undesirable side forces on the lower end of the portion stack.

Hierdurch wird es sogar möglich, leicht verformbare Kekse, also insbesondere mit einer Creme-Füllung versehene Schichtkekse, unmittelbar nachfolgend dem Backvorgang zu verpacken, ohne durch eine Zwischenkühlung der Kekse für eine der Verpackung vorausgehende Stabilisierung der Creme-Füllung zu sorgen.As a result, it is even possible to pack easily deformable biscuits, in particular layered biscuits provided with a cream filling, immediately following the baking process, without providing for an intermediate cooling of the biscuits for a stabilization of the cream filling preceding the packaging.

Da vorzugsweise gleichzeitig mit der Ausbildung der Quersiegelnaht im Bereich der Quersiegelnaht eine Durchtrennung des Folienschlauchs erfolgt, wird vermieden, dass im Bereich des oberen Verpackungsendes der unterhalb der Quersiegeleinrichtung angeordneten Verpackungseinheit durch das Aufstauen erhöhte Zugspannungen auftreten können.Since the film tube is preferably severed simultaneously with the formation of the transverse sealing seam in the region of the transverse seam, it is avoided that increased tensile stresses can occur in the region of the upper end of the packaging unit arranged below the transverse sealing device due to the damming.

Als besonders vorteilhaft erweist es sich, wenn die Relativbewegung der Quersiegeleinrichtung mittels einer Verzögerung der Vertikalbewegung der Quersiegeleinrichtung erfolgt, da somit die Folienbahn in der Schlauchbeutelmaschine mittels der Folienabzugseinrichtung kontinuierlich und mit konstanter Geschwindigkeit gefördert werden kann und somit die erforderliche Relativbewegung allein über eine entsprechende kinematische Steuerung der Quersiegeleinrichtung erfolgen kann.It proves to be particularly advantageous if the relative movement of the transverse sealing device takes place by means of a delay of the vertical movement of the transverse sealing device, since thus the film web in the tubular bag machine by means of the film removal device can be conveyed continuously and at a constant speed and thus the required relative movement can take place solely via a corresponding kinematic control of the transverse sealing device.

Wenn die Verzögerung der Vertikalbewegung der Quersiegeleinrichtung in einer Endphase des Siegelkontakts nachfolgend einer zumindest teilweise stoffschlüssigen Verbindung gegeneinander liegender Folienbahnabschnitte erfolgt, kann über den Siegelkontakt ein ausreichend großer Wärmeeintrag in den Folienschlauch erfolgen, um eine geringfügige plastische Verformung des Folienschlauchs zur Unterstützung der Ausbildung eines schlaffen Beutelzwickels der Verpackungseinheit zu nutzen.If the deceleration of the vertical movement of the transverse sealing device in an end phase of the sealing contact is followed by an at least partially cohesive connection of mutually opposing film web sections, a sufficiently large heat input into the film tube can take place via the sealing contact to a slight plastic deformation of the film tube to support the formation of a flaccid Beutelzwickels to use the packaging unit.

Um auszuschließen, dass es aufgrund der vertikalen Relativbewegung der Quersiegeleinrichtung zu einer Krafteinwirkung auf den Portionsstapel in Förderrichtung des Folienschlauchs kommt, ist es vorteilhaft, wenn die mittels der Relativbewegung der Quersiegeleinrichtung zurückgelegte Bewegungsstrecke s kleiner ist als der Abstand a der Quersiegeleinrichtung von dem oberhalb der Quersiegeleinrichtung angeordneten Portionsstapel.To rule out that it comes due to the vertical relative movement of the transverse sealing device to a force on the portion stack in the conveying direction of the film tube, it is advantageous if the distance traveled by the relative movement of the transverse sealing means movement distance s is smaller than the distance a of the transverse sealing device of the above the transverse sealing device arranged portion stacks.

Eine bevorzugte Ausführungsform der Erfindung wird nachfolgend anhand der Zeichnungen erläutert.A preferred embodiment of the invention will be explained below with reference to the drawings.

Es zeigen:Show it:

1: eine Quersiegeleinrichtung in einer Anfangsphase eines Siegelkontakts zum Folienschlauch; 1 a transverse sealing device in an initial phase of a sealing contact with the film tube;

2: die in 1 dargestellte Quersiegeleinrichtung in einer Endphase des Siegelkontakts zum Folienschlauch. 2 : in the 1 illustrated transverse sealing device in a final phase of the seal contact to the film tube.

1 zeigt ein unteres Ende eines in einer Schlauchbeutelmaschine zur Umhüllung von in einem Portionsstapel 10 aufeinander liegend angeordneten scheibenförmigen Produkten 11 ausgebildeten Folienschlauchs 12. Der Folienschlauch 12 wird mittels einer in 1 nicht näher dargestellten Folienabzugseinrichtung in vertikaler Förderrichtung 13 zu einer Quersiegeleinrichtung 14 gefördert, die zwei Siegelwerkzeuge 15, 16 umfasst, welche über ein nicht näher dargestelltes Bewegungsgetriebe so angetrieben werden, dass sie während eines in 1 dargestellten Siegelkontakts mit Siegelflächen 17 gegen den zwischen den Siegelwerkzeugen 15, 16 angeordneten Folienschlauch 12 anliegen. 1 shows a lower end of a in a tubular bag machine for wrapping in a portion stack 10 superimposed disc-shaped products 11 formed film tube 12 , The film tube 12 is by means of a in 1 not shown in detail film removal device in the vertical conveying direction 13 to a transverse sealing device 14 promoted, the two sealing tools 15 . 16 includes, which are driven by a motion transmission not shown in detail so that they during a in 1 illustrated seal contact with sealing surfaces 17 against the between the sealing tools 15 . 16 arranged film tube 12 issue.

Außerhalb der in 1 dargestellten Siegelphase befinden sich die Siegelwerkzeuge 15, 16 in einer in 1 strichpunktiert dargestellten Portalstellung, in der die Siegelwerkzeuge 15, 16 auseinander bewegt sind, so dass der Folienschlauch 12 mit den darin aufgenommenen Produkten 11 zwischen den Siegelwerkzeugen 15, 16 der Quersiegeleinrichtung 14 hindurch bewegt werden kann.Outside the in 1 the sealing phase shown are the sealing tools 15 . 16 in an in 1 dash-dotted illustrated portal position in which the sealing tools 15 . 16 are moved apart, leaving the film tube 12 with the included products 11 between the sealing tools 15 . 16 the transverse sealing device 14 can be moved through.

Der Bewegungsantrieb der Siegelwerkzeuge 15, 16 ist so ausgebildet, dass die Siegelwerkzeuge 15, 16 in ihrer in 1 dargestellten Siegelstellung während des Siegelkontakts zur Folienbahn mittels einer nicht näher dargestellten Antriebseinrichtung in Förderrichtung 13 des Folienschlauchs 12 bewegt werden. Danach werden die Siegelwerkzeuge 15, 16 in die Portalstellung und um die während des Siegelkontakts in Förderrichtung 13 ausgeführte Bewegungsstrecke entgegen der Förderrichtung 13 des Folienschlauchs 12 zurück bewegt, um in einem nachfolgenden Siegelvorgang zur Herstellung einer Quersiegelnaht 18 erneut in die in 1 dargestellte Siegelstellung überführt zu werden.The movement drive of the sealing tools 15 . 16 is designed so that the sealing tools 15 . 16 in her in 1 illustrated sealing position during the sealing contact with the film web by means of a drive device not shown in the conveying direction 13 of the film tube 12 to be moved. After that, the sealing tools 15 . 16 in the portal position and the during the seal contact in the conveying direction 13 executed movement distance against the conveying direction 13 of the film tube 12 moved back to in a subsequent sealing process for producing a transverse seal 18 again in the in 1 to be transferred to the illustrated seal position.

In der Siegelstellung erfolgt mittels einer in die Quersiegeleinrichtung integrierten Trenneinrichtung 19 im Bereich der Quersiegelnaht 18 eine Durchtrennung des Folienschlauchs 12, sodass eine durch zwei benachbarte Quersiegelnähte 18 in ihrer Länge definierte Verpackungseinheit 20 von dem Folienschlauch 12 abgetrennt wird.In the sealing position by means of an integrated in the transverse sealing device separation device 19 in the area of the transverse seam 18 a transection of the film tube 12 so that one by two adjacent transverse sealing seams 18 defined in their length packaging unit 20 from the film tube 12 is separated.

Bei den in 1 beispielhaft dargestellten Produkten 11 handelt es sich um Schichtkekse, die sandwichartig ausgebildet sind, und zwischen Deckkeksen 21 und 22 eine Cremefüllung 23 aufnehmen. Zum Zeitpunkt der Herstellung der Verpackungseinheiten 20 ist die Cremefüllung 23 der unmittelbar nach einem Backvorgang der Schlauchbeutelmaschine zugeführten Produkte 11 noch relativ weich, sodass auf die Deckkekse 21, 22 wirkende Querkräfte leicht zu einer Verformung bzw. zu einem Herausquillen der Cremefüllung 23 aus dem Produkt 11 führen können.At the in 1 exemplified products 11 are layered biscuits, which are sandwiched, and between Deckkeksen 21 and 22 a cream filling 23 take up. At the time of manufacture of the packaging units 20 is the cream filling 23 the immediately after a baking process the tubular bag machine supplied products 11 still relatively soft, so that on the Deckkekse 21 . 22 acting transverse forces easily to a deformation or to a churning out of the cream filling 23 from the product 11 being able to lead.

Wie anhand der 1 nachvollziehbar wird, entstehen aufgrund des Siegelvorgangs im Folienschlauch 12 im Bereich eines zwischen der Quersiegelnaht 18 und dem Portionsstapel 10 der Produkte 11 ausgebildeten Beutelzwickels 24 Zugspannungen, die auf einen der Quersiegelnaht 18 gegenüberliegenden Produktrandbereich 25 wirkende Querkräfte F bewirken, welche bei Erreichen einer kritischen Größe und der noch weichen Cremefüllung 23 eine keilförmige Anstellung der Deckkekse 21, 22 zueinander und damit eine entsprechende Produktverformung verursachen können.As based on the 1 is traceable, arise due to the sealing process in the film tube 12 in the area of one between the transverse sealing seam 18 and the portion pile 10 of the products 11 trained bag fur 24 Tensile stresses on one of the transverse seam 18 opposite product edge region 25 acting transverse forces F cause which when reaching a critical size and the still soft cream filling 23 a wedge-shaped employment of the Deckkekse 21 . 22 cause each other and thus a corresponding product deformation.

Wie in 2 dargestellt, führen die Siegelwerkzeuge 15, 16 der Quersiegeleinrichtung 14 in einer Endphase des Siegelkontakts nachfolgend einer zumindest teilweise stoffschlüssigen Verbindung gegeneinander liegender Folienbahnabschnitte 28, 29 zur Ausbildung der Quersiegelnaht 18 eine Relativbewegung aus, mit einer Bewegungsstrecke s, um die die Siegelwerkzeuge 15, 16 aus der in 2 strichpunktiert dargestellten Anfangsphase des Siegelkontakts relativ zum Folienschlauch 12 entgegen der Förderrichtung 13 des Folienschlauchs 12 bewegt werden.As in 2 shown, lead the sealing tools 15 . 16 the transverse sealing device 14 in an end phase of the sealing contact following an at least partially cohesive connection of mutually opposing film web sections 28 . 29 for the formation of the transverse sealing seam 18 a relative movement, with a movement distance s around which the sealing tools 15 . 16 from the in 2 dot-dashed initial phase of the seal contact relative to the film tube 12 against the conveying direction 13 of the film tube 12 to be moved.

Diese Relativbewegung wird im vorliegenden Fall durch eine Verzögerung der in dieselbe Richtung wie der Folienschlauch bewegten Quersiegeleinrichtung 14 ausgeführt.This relative movement is in the present case by a delay of moving in the same direction as the film tube transverse sealing device 14 executed.

Wie anhand 2 deutlich wird, kann die Ausbildung von Zugspannungen im Beutelzwickel 24 und von Querkräften F, die die kritische Größe erreichen, dadurch verhindert werden, dass aufgrund der Relativbewegung der Quersiegeleinrichtung 14 eine schlaffe Ausgestaltung des Beutelzwickels 24 erreicht wird.As based on 2 becomes clear, the formation of tensile stresses in the bag furrow 24 and lateral forces F reaching the critical size can be prevented by virtue of the relative movement of the transverse sealing device 14 a flaccid design of the bag fur 24 is reached.

Wie aus 2 ferner zu ersehen ist, ist die mittels der Relativbewegung der Quersiegeleinrichtung 14 zurückgelegte Bewegungsstrecke s kleiner als der Abstand a der Quersiegeleinrichtung 14 von dem oberhalb der Quersiegeleinrichtung 14 angeordneten Portionsstapel 10.How out 2 it can also be seen that is by means of the relative movement of the transverse sealing device 14 traveled distance s smaller than the distance a of the transverse sealing device 14 from above the transverse sealing device 14 arranged portion stacks 10 ,

Um eine definierte Ausbildung des Beutelzwickels 24 an der Quersiegelnaht 18 zu unterstützen, sind im Fall des dargestellten Ausführungsbeispiels jeweils oberhalb und unterhalb der Quersiegeleinrichtung 14 quer zur Förderrichtung 13 des Folienschlauchs 12 in den Folienschlauch 12 einschwenkbare Faltstößel 27, 28 vorgesehen, die eine definierte Ausbildung einer Zwickelfalte ermöglichen, sodass die einander gegenüber liegenden Folienbahnabschnitte im Bereich des Bodenzwickels leporelloartig übereinander liegen und eine entsprechend definierte Ausbildung der Quersiegelnähte möglich ist.To a defined training of the bag fur 24 at the transverse sealing seam 18 are in the case of the illustrated embodiment each above and below the transverse sealing device 14 transverse to the conveying direction 13 of the film tube 12 in the film tube 12 swiveling folding ram 27 . 28 provided, which allow a defined formation of a gusset, so that the opposing film web sections in the region of the Bodenzwickels leporello above each other and a correspondingly defined formation of the transverse sealing seams is possible.

Claims (4)

Verfahren zur Herstellung von Verpackungseinheiten (20) in einer Schlauchbeutelmaschine, bei dem in Portionsstapeln (10) aufeinander liegend angeordnete scheibenförmige Produkte (11) vertikal gefördert und von einer mittels einer Folienabzugseinrichtung parallel geförderten Folienbahn umhüllt werden, wobei die Folienbahn zur Ausbildung eines Folienschlauchs (12) mittels einer Längssiegeleinrichtung mit einer Längssiegelnaht und nachfolgend oberhalb und unterhalb der Portionsstapel mittels einer unabhängig von der Folienabzugseinrichtung von einer Antriebseinrichtung angetriebenen und während eines Siegelkontakts zur Folienbahn in dieselbe Richtung wie die Folienbahn bewegten Quersiegeleinrichtung (14) mit Quersiegelnähten (18) versehen wird, dadurch gekennzeichnet, dass die Quersiegeleinrichtung während des Siegelkontakts zum Folienschlauch eine vertikale Relativbewegung zum Folienschlauch entgegen der Förderrichtung des Folienschlauchs ausführt.Method for producing packaging units ( 20 ) in a tubular bag machine, in which portion stacks ( 10 ) lying on disc-shaped products ( 11 ) are conveyed vertically and are enveloped by a film web conveyed in parallel by means of a film removal device, the film web being used to form a film tube ( 12 ) by means of a longitudinal sealing device having a longitudinal sealing seam and subsequently above and below the portion stack by means of a transverse sealing device driven by a drive device independently of the film removal device and during a sealed contact to the film web in the same direction as the film web. 14 ) with transverse sealing seams ( 18 ) is provided, characterized in that the transverse sealing device during the sealing contact to the film tube performs a vertical relative movement to the film tube opposite to the conveying direction of the film tube. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Relativbewegung der Quersiegeleinrichtung (14) mittels einer Verzögerung der Vertikalbewegung der Quersiegeleinrichtung erfolgt.A method according to claim 1, characterized in that the relative movement of the transverse sealing device ( 14 ) takes place by means of a delay of the vertical movement of the transverse sealing device. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Verzögerung der Vertikalbewegung der Quersiegeleinrichtung (14) in einer Endphase des Siegelkontakts nachfolgend einer zumindest teilweisen stoffschlüssigen Verbindung gegeneinander liegender Folienbahnabschnitte (28, 29) erfolgt.A method according to claim 2, characterized in that the delay of the vertical movement of the transverse sealing device ( 14 ) in an end phase of the sealing contact following an at least partially cohesive connection of mutually opposing film web sections ( 28 . 29 ) he follows. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die mittels der Relativbewegung der Quersiegeleinrichtung (14) zurückgelegte Bewegungsstrecke s kleiner ist als der Abstand a der Quersiegeleinrichtung von dem oberhalb der Quersiegeleinrichtung angeordneten Portionsstapel (10) der Produkte (11).Method according to one of the preceding claims, characterized in that by means of the relative movement of the transverse sealing device ( 14 ) traveled distance s is smaller than the distance a of the transverse sealing device of the above the transverse sealing device arranged portion stack ( 10 ) of the products ( 11 ).
DE102012218844.4A 2012-10-16 2012-10-16 Method for producing packaging units in a tubular bag machine Withdrawn DE102012218844A1 (en)

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DE102012218844.4A DE102012218844A1 (en) 2012-10-16 2012-10-16 Method for producing packaging units in a tubular bag machine
EP13745368.4A EP2909087A1 (en) 2012-10-16 2013-07-16 Method for producing packaging units in a tubular bag-making machine
CN201380053875.1A CN104812673A (en) 2012-10-16 2013-07-16 Method for producing packaging units in a tubular bag-making machine
PCT/EP2013/065022 WO2014060127A1 (en) 2012-10-16 2013-07-16 Method for producing packaging units in a tubular bag-making machine
US14/434,849 US20150274334A1 (en) 2012-10-16 2013-07-16 Method for producing packaging units in a tubular bag-making machine

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