DE102021116967A1 - Process for operating a tubular bagging machine - Google Patents

Process for operating a tubular bagging machine Download PDF

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Publication number
DE102021116967A1
DE102021116967A1 DE102021116967.4A DE102021116967A DE102021116967A1 DE 102021116967 A1 DE102021116967 A1 DE 102021116967A1 DE 102021116967 A DE102021116967 A DE 102021116967A DE 102021116967 A1 DE102021116967 A1 DE 102021116967A1
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DE
Germany
Prior art keywords
sealing
transverse sealing
transverse
seam
film
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.)
Ceased
Application number
DE102021116967.4A
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German (de)
Inventor
Alexander Epp
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Rovema GmbH
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Rovema GmbH
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Publication date
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Priority to DE102021116967.4A priority Critical patent/DE102021116967A1/en
Priority to PCT/EP2022/065626 priority patent/WO2023274675A1/en
Publication of DE102021116967A1 publication Critical patent/DE102021116967A1/en
Ceased legal-status Critical Current

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    • 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
    • B29C66/8491—Packaging machines welding through a filled container, e.g. tube or bag
    • 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
    • B29C65/245—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 the heat transfer being achieved contactless, e.g. by radiation
    • 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
    • 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
    • B29C65/32—Induction
    • 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
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • 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
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial 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
    • B29C66/347—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients
    • B29C66/3472—General aspects dealing with the joint area or with the area to be joined using particular temperature distributions or gradients; using particular heat distributions or gradients in the plane of the joint, e.g. along the joint line in the plane of the joint or perpendicular to the joint line in the plane of the joint
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • 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
    • B29C66/841—Machines or tools adaptable for making articles of different dimensions or shapes or for making joints of different dimensions
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B29C66/91423—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools using joining tools having different temperature zones or using several joining tools with different temperatures
    • 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
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/001—Arrangements to enable adjustments related to the product to be packaged
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/02—Arrangements to enable adjustments to be made while the machine is running
    • 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
    • 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
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/04—Customised on demand packaging by determining a specific characteristic, e.g. shape or height, of articles or material to be packaged and selecting, creating or adapting a packaging accordingly, e.g. making a carton starting from web material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zum Betrieb einer Schlauchbeutelmaschine (01) mit einer von einer Vorratsrolle (02) abwickelbaren Folienbahn (03), einer Formschulter (04) zum Umformen der Folienbahn (03) zu einem Folienschlauch (05), einem gegen den Folienschlauch (05) wirkenden Folienabzug (07) zum Weiterbewegen des Folienschlauches (05), einer Längssiegeleinrichtung zum Verschweißen des Folienschlauches (05) parallel zu seiner Transportrichtung mittels einer Längsnaht, und einer Quersiegeleinrichtung (08) mit gegeneinander bewegbaren, den Folienschlauch (05) quer zur Transportrichtung verschweißenden Quersiegeleinheiten (09) zum Erzeugen von Quernähten, wobei durch die Herstellung der Quersiegelnähte ein luftdicht umschlossenes Füllgutvolumen gebildet wird, wobei die Quersiegeleinheiten (09) jeweils mehrere unabhängig voneinander beheizbare Siegelelemente (13) umfasst, wobei beim Quersiegeln der Quersiegelnähte (15, 16) zumindest ein Siegelelement (13) abgeschaltet ist, und wobei durch die abgeschalteten Siegelelemente (13) eine das Füllgutvolumen (17, 20) begrenzende Kontur gebildet wird.The invention relates to a method for operating a tubular bagging machine (01) with a film web (03) that can be unwound from a supply roll (02), a forming shoulder (04) for forming the film web (03) into a film tube (05), a film tube ( 05) acting film take-off (07) for moving the film tube (05) onward, a longitudinal sealing device for welding the film tube (05) parallel to its transport direction by means of a longitudinal seam, and a transverse sealing device (08) with which the film tube (05) can be moved in opposite directions transversely to the transport direction Welding transverse sealing units (09) for producing transverse seams, with the production of the transverse sealing seams forming an airtight, enclosed volume of filling material, with the transverse sealing units (09) each comprising a plurality of sealing elements (13) that can be heated independently of one another, with the transverse sealing of the transverse sealing seams (15, 16) at least one sealing element (13) is switched off, and wobe i a contour delimiting the filling material volume (17, 20) is formed by the switched-off sealing elements (13).

Description

Eine Schlauchbeutelmaschine ist beispielsweise aus der DE 10 2010 028 607 A1 bekannt. Bei der Schlauchbeutelmaschine kann es sich um eine vertikal oder horizontal arbeitende Schlauchbeutelmaschine handeln, sodass die Schlauchbeutel entweder vertikal oder horizontal durch die Schlauchbeutelmaschine gefördert werden. Die Schlauchbeutelmaschine selbst kann dabei entweder intermittierend oder kontinuierlich angetrieben werden. Durch den Einsatz der Schlauchbeutelmaschine werden Schlauchbeutel hergestellt, bei denen das Verpackungsgut in einem Füllgutvolumen des Schlauchbeutels luftdicht umschlossen ist.A tubular bag machine is, for example, from DE 10 2010 028 607 A1 famous. The flow wrapper can be a vertical or horizontal flow wrapper, so that the flow wrapper is conveyed either vertically or horizontally through the flow wrapper. The tubular bag machine itself can be driven either intermittently or continuously. By using the tubular bag machine, tubular bags are produced in which the packaged goods are airtightly enclosed in a filling volume of the tubular bag.

Bei bekannten Schlauchbeuteln weist das Füllgutvolumen üblicherweise eine rechteckförmige Kontur auf. Die Form und die Abmessungen der rechteckförmigen Kontur des Füllgutvolumens wird durch die Breite Folienbahn zwischen den Längskanten entlang der Längsnaht und durch die Enge der Schlauchbeutel zwischen den einzelnen Quernähten bestimmt. Als Nachteil dieser rechteckförmigen Form des Füllgutvolumens hat sich die eingeschränkte Gestaltbarkeit von Produktverpackungen gezeigt. Vielfach wünschen die Hersteller von Produkten eine möglichst auffällige Verpackung ihrer Ware, um diese gegenüber der Ware von Mitbewerbern auffällig herausstellen zu können. Soll ein Schlauchbeutel mit konturierten Füllgutvolumen hergestellt werden, so ist es bei Verwendung der bekannten Techniken erforderlich, ein entsprechend geeigneten Formatsatz mit auf die Kontur des Füllgutvolumens abgestimmten Quersiegeleinheiten herzustellen. Mit diesen individuell hergestellten Quersiegeleinheiten können allerdings dann keine anderen Schlauchbeutel hergestellt werden, sodass diese Art der Gestaltung von Schlauchbeuteln mit konturiertem Füllgutvolumen relativ hohe Investitionskosten erfordert.In known tubular bags, the filling volume usually has a rectangular contour. The shape and dimensions of the rectangular contour of the filling volume is determined by the width of the film web between the longitudinal edges along the longitudinal seam and by the narrowness of the tubular bag between the individual transverse seams. A disadvantage of this rectangular shape of the filling volume has been found to be the restricted designability of product packaging. In many cases, the manufacturers of products want their goods to be packaged as conspicuously as possible in order to be able to stand out from the goods of competitors. If a tubular bag with contoured filling volume is to be produced, it is necessary when using the known techniques to produce a correspondingly suitable format set with transverse sealing units matched to the contour of the filling volume. However, no other tubular bags can then be produced with these individually produced transverse sealing units, so that this type of tubular bag design with a contoured filling volume requires relatively high investment costs.

Aufgabe der vorliegenden Erfindung ist es deshalb ein Verfahren zum Betrieb einer Schlauchbeutelmaschine vorzuschlagen, mit dem Schlauchbeutel mit konturierten Füllgutvolumen kostengünstig und flexibel herstellbar sind.The object of the present invention is therefore to propose a method for operating a tubular bag machine with which tubular bags with contoured filling volumes can be produced cost-effectively and flexibly.

Bevorzugte Ausführungsformen der Erfindung sind Gegenstand der Unteransprüche.Preferred embodiments of the invention are the subject matter of the dependent claims.

Das gattungsgemäße Verfahren beruht auf der Verwendung von Quersiegeleinheiten, die jeweils mehrere unabhängig voneinander beheizbare Siegelelemente umfassen. Beim Quersiegeln der Quersiegelnähte einer bestimmten Art von Schlauchbeuteln, verfolgt dann die Abschaltung einzelner oder mehrerer dieser Siegelelemente, wobei sich die Kontur des Füllgutvolumens entlang der Quersiegelnähte durch die abgeschalteten Siegelelemente ergibt. Dies bedeutet mit anderen Worten, dass die Summe der Siegelelemente ein beheizbares Feld in der Quersiegeleinheit bilden, wobei durch die gezielte Abschaltung einzelner dieser Siegelelemente die Form der konturierten Quersiegelnaht definiert wird. Durch einfaches Umprogrammieren der Heizeinrichtung der Quersiegeleinheiten, ist es dann möglich, kostengünstig und flexibel die Kontur der Quersiegelnähte in die jeweils gewünschte Form der Kontur des Füllgutvolumens abzustimmen.The generic method is based on the use of transverse sealing units, each of which comprises a plurality of sealing elements that can be heated independently of one another. When the transverse sealing seams of a certain type of tubular bag are transversely sealed, one or more of these sealing elements are switched off, the contour of the filling material volume along the transverse sealing seams resulting from the switched-off sealing elements. In other words, this means that the sum of the sealing elements forms a heatable field in the transverse sealing unit, the shape of the contoured transverse sealing seam being defined by the targeted switching off of individual of these sealing elements. By simply reprogramming the heating device of the transverse sealing units, it is then possible to adjust the contour of the transverse sealing seams to the desired shape of the contour of the filling volume in a cost-effective and flexible manner.

Gemäß einer bevorzugten Verfahrensvariante ist es vorgesehen, dass in jeweils zwei aufeinanderfolgenden Quersiegelnähten unterschiedliche Siegelelemente abgeschaltet bzw. zugeschaltet werden, um an der oberen Quersiegelnaht des Schlauchbeutel und an der unteren Quersiegelnaht des Schlauchbeutel jeweils unterschiedliche füllgutvolumenbegrenzende Konturen zu erzeugen. Auf diese Weise kann durch die alternierende Zu- und Abschaltung der Siegelelemente erreicht werden, dass jeweils wechselnd Schlauchbeutel mit unterschiedlichen Konturen des Füllgutvolumens erzeugbar sind.According to a preferred variant of the method, it is provided that in two successive transverse sealing seams, different sealing elements are switched on or off in order to produce different contours limiting the filling volume on the upper transverse sealing seam of the tubular bag and on the lower transverse sealing seam of the tubular bag. In this way, by switching the sealing elements on and off alternately, tubular bags with different contours of the filling volume can be produced in alternation.

Besonders auffällige Schlauchbeutel ergeben sich, wenn die das Füllgutvolumen begrenzende Konturen der oberen Quersiegelnaht des Schlauchbeutels und die das Füllgutvolumen begrenzende Kontur der unteren Quersiegelnaht einander zumindest abschnittsweise berühren. Auf diese Weise können beispielsweise Schlauchbeutel mit an gesamten Umfang bogenförmig gestaltete Kontur des Füllgutvolumens hergestellt werden. Insbesondere sind auch Schlauchbeutel kreisrund mit abgesiegelten Füllgutvolumen denkbar.Particularly conspicuous tubular bags result when the contours of the upper transverse sealing seam of the tubular bag that limit the filling material volume and the contour of the lower transverse sealing seam that limits the filling material volume touch one another at least in sections. In this way, for example, tubular bags can be produced with an arc-shaped contour of the filling volume over the entire circumference. In particular, circular tubular bags with sealed contents are also conceivable.

Im Hinblick auf ein besonders hohes Maß an Aufmerksamkeit für die mit dem erfindungsgemäßen Verfahren hergestellten Schlauchbeutel ist es weiterhin vorteilhaft, wenn die obere Quersiegelnaht des Schlauchbeutels und/oder die untere Quersiegelnaht entlang einer Schnittkontur seitlich beschnitten wird. Auf diese Weise können die Bereiche der Quersiegelnähte, die eine für die Abdichtung des Schlauchbeutels nicht erforderliche Überbreite aufweisen, entfernt werden. Weist der Schlauchbeutel beispielsweise eine kreisrunde Kontur des Füllgutvolumens auf, wobei der Schlauchbeutel selbst weiterhin rechteckig ist, kann durch das Besäumen der Quersiegelnähte ein Schlauchbeutel mit kreisrunder Form gebildet werden.With regard to a particularly high degree of attention for the tubular bag produced with the method according to the invention, it is also advantageous if the upper transverse sealing seam of the tubular bag and/or the lower transverse sealing seam is trimmed laterally along a cutting contour. In this way, the areas of the transverse sealing seams that have an excess width that is not necessary for the sealing of the tubular bag can be removed. If the tubular bag has, for example, a circular contour of the filling volume, the tubular bag itself being rectangular, a tubular bag with a circular shape can be formed by trimming the transverse sealing seams.

Besonders vorteilhaft ist es dabei, wenn die Schnittkontur zumindest abschnittsweise parallel zu der das Füllgutvolumen begrenzenden Kontur der Quersiegelnähte verläuft. Die Breite der verbleibenden Quersiegelnähte kann dann so gewählt werden, dass die die Abdichtung der Schlauchbeutel erforderliche Mindestbreite gerade noch eingehalten wird.It is particularly advantageous if the cutting contour runs at least in sections parallel to the contour of the transverse sealing seams that delimits the filling material volume. The width of the remaining transverse sealing seams can then be selected in such a way that the minimum width required for sealing the tubular bag is just kept.

Um das Zu- bzw. Abschalten der einzelnen Siegelelemente möglichst in kurzer Zeit variieren zu können, ist es besonders vorteilhaft, wenn die entsprechenden Siegelelemente der Quersiegeleinheit mit einem Laser oder Induktionsheizelement oder Widerstandssiegelelement beheizt werden. Denn die Temperierung des Siegelelementes durch Laserbestrahlung erfolgt innerhalb kürzester Taktzeiten und erlaubt somit eine variable und flexible Anpassung des beheizten Felds in der Quersiegeleinheit. Auch die Beheizung mit Induktionsheizelementen oder Widerstandssiegelelementen erlaubt eine hohe Prozesstaktung.In order to be able to vary the activation and deactivation of the individual sealing elements as quickly as possible, it is particularly advantageous if the corresponding sealing elements of the transverse sealing unit are heated with a laser or induction heating element or resistance sealing element. Because the temperature of the sealing element is controlled by laser radiation within the shortest cycle times and thus allows a variable and flexible adjustment of the heated field in the transverse sealing unit. Heating with induction heating elements or resistance sealing elements also allows high process cycles.

Alternativ bzw. additiv zur Beheizung der Siegelelemente mit einem Laser kann zur Erhöhung der Geschwindigkeit bei der Veränderung des mit der Quersiegeleinheit gesiegelten Konturbereichs auch eine Kühleinrichtung vorgesehen werden, mit der die Siegelelemente geeignet gekühlt werden können.As an alternative or in addition to heating the sealing elements with a laser, a cooling device can also be provided to increase the speed when changing the contour area sealed with the transverse sealing unit, with which the sealing elements can be suitably cooled.

Eine Ausführungsform der Erfindung ist in den Zeichnungen schematisiert dargestellt und wird nachfolgend beispielhaft erläutert.An embodiment of the invention is shown schematically in the drawings and is explained below by way of example.

Es zeigen:

  • 1 eine schematisierte dargestellte Schlauchbeutelmaschine in seitlicher Ansicht;
  • 2 eine Quersiegeleinheit der Schlauchbeutelmaschine gemäß 1 in Ansicht von vorne;
  • 3 die Quersiegeleinheit gemäß 2 mit mehreren dicht beheizten Siegeleinheiten;
  • 4 einen Schlauchbeutel der unter Verwendung der Quersiegeleinheit gemäß 3 hergestellt wurde.
  • 5 den Schlauchbeutel gemäß 4 nach dem Besäumen der Quersiegelnähte;
  • 6 eine zweite Ausführungsform eines Schlauchbeutels, der mit der Quersiegelnaht gemäß 3 herstellbar ist.
Show it:
  • 1 a schematized tubular bagging machine shown in a side view;
  • 2 a cross-sealing unit according to the tubular bag machine 1 in front view;
  • 3 the cross sealing unit according to 2 with several densely heated sealing units;
  • 4 a tubular bag according to using the cross-sealing unit 3 was produced.
  • 5 according to the tubular bag 4 after trimming the transverse sealing seams;
  • 6 a second embodiment of a tubular bag with the transverse sealing seam according to 3 is producible.

1 zeigt eine schematisierte dargestellte Schlauchbeutelmaschine 01, wobei in 1 nur die Teile der Schlauchbeutelmaschine 01 dargestellt sind, die für das Verständnis der Erfindung erforderlich sind. Von einer Vorratsrolle 02 wird eine Folienbahn 03 abgewickelt und anschließend an einer Formschulter 04 zu einem Folienschlauch geformt. Bei der Folienbahn 03 handelt es sich um einen mit einer Siegelschicht beschichtet Papierbahn, wobei der Papieranteil höher als 95 % ist. 1 shows a schematic representation of a tubular bagging machine 01, in which 1 only the parts of the tubular bagging machine 01 that are necessary for understanding the invention are shown. A film web 03 is unwound from a supply roll 02 and then formed into a film tube at a forming shoulder 04. The film web 03 is a paper web coated with a sealing layer, with the proportion of paper being more than 95%.

Der Folienschlauch 05 gleitet an der Außenseite des Formatrohrs 06, angetrieben von einem Folienabzug 07, nach unten, wobei der Folienschlauch 05 mittels einer in 1 nicht dargestellten Längssiegeleinrichtung parallel zu seiner Transportrichtung längsgesiegelt wird. Die Fördergeschwindigkeit der Folienbahn 03 wird mit einer entsprechenden Sensorik überwacht.The film tube 05 slides down the outside of the format tube 06, driven by a film take-off 07, with the film tube 05 being held by an in 1 longitudinal sealing device, not shown, is longitudinally sealed parallel to its transport direction. The conveying speed of the film web 03 is monitored with a corresponding sensor system.

Unterhalb des Formatrohrs 06 befindet sich eine Quersiegeleinrichtung 08 mit zwei Quersiegeleinheiten 09 zur Erzeugung von Quersiegelnähten, mit denen der Folienschlauch 05 zu einzelnen Schlauchbeuteln quer verschweißt wird. Der Antrieb der Quersiegeleinrichtung 09 und die Trenneinrichtung zur Trennung der einzelnen Schlauchbeutel 14 sind in 1 ebenfalls nicht dargestellt. Die beiden Quersiegeleinheiten 09 umfassen jeweils eine Siegelleiste 11 und ein Trägerelement 12 und werden nachfolgend anhand der Zeichnung in 2 und 3 näher erläutert.Below the format tube 06 is a transverse sealing device 08 with two transverse sealing units 09 for producing transverse sealing seams, with which the tubular film 05 is welded transversely to form individual tubular bags. The drive of the transverse sealing device 09 and the separating device for separating the individual tubular bags 14 are in 1 also not shown. The two transverse sealing units 09 each comprise a sealing bar 11 and a carrier element 12 and are described below with reference to the drawing in 2 and 3 explained in more detail.

1 zeigt eine der Siegeleinheit 09 in seitlicher Ansicht, wobei die Fläche der Quersiegeleinheit thematisiert dargestellt ist, die beim Quersiegeln der Schlauchbeutel beheizbar ist. Die Quersiegeleinheit 09 umfasst eine Vielzahl von rechteckigen Siegelelementen 13, die jeweils unabhängig voneinander zu- bzw. abschaltbar sind und in ihrer Gesamtheit eine rechteckförmige Siegelfläche bilden. 1 shows one of the sealing unit 09 in a side view, with the surface of the transverse sealing unit being shown as a theme, which can be heated when the tubular bag is transversely sealed. The transverse sealing unit 09 comprises a large number of rectangular sealing elements 13, which can each be switched on and off independently of one another and form a rectangular sealing surface in their entirety.

3 zeigt eine Variante der Quersiegeleinheit 09, bei der nur ein Teil der Siegelelemente 13 beheizt wird, die in 4 dargestellten Schlauchbeutel quersiegeln zu können. Die dunkel dargestellten Siegelelemente 13 werden dabei beheizt, wobei hingegen die hell dargestellten Siegelelemente 13 geschaltet sind und insofern keine Quersiegelung der Folienbahn erzeugen können. Die in 3 dargestellte Siegelung ist spiegelsymmetrisch zu einer Mittelachse, sodass die obere Hälfte des Heizfeldes jeweils die Bodennaht eines Schlauchbeutels siegelt, wohingegen die untere Hälfe des Heizfeldes die Kopfnaht eines Schlauchbeutels siegelt. 3 shows a variant of the transverse sealing unit 09, in which only some of the sealing elements 13 are heated, which in 4 to be able to cross-seal the tubular bag shown. The sealing elements 13 shown in dark are heated in the process, whereas the sealing elements 13 shown in light are switched on and in this respect cannot produce a transverse seal of the film web. In the 3 The sealing shown is mirror-symmetrical to a central axis, so that the upper half of the heating field seals the bottom seam of a tubular bag, whereas the lower half of the heating field seals the top seam of a tubular bag.

4 zeigt einen Schlauchbeutel 14, wie er mit der in 4 dargestellten Quersiegeleinheit 09 herstellbar ist. Der Schlauchbeutel 14 weist an der Bodennaht 15 und der Kopfnaht 16 jeweils an der zum Füllgutvolumen 17 weisenden Seite eine bogenförmige Kontur auf. Quer dazu ist der Schlauchbeutel 14 mit einer Längssiegelnaht 18 längsgesiegelt. 4 shows a tubular bag 14, as with the in 4 illustrated transverse sealing unit 09 can be produced. The tubular bag 14 has an arcuate contour on the bottom seam 15 and the top seam 16 on the side facing the filling material volume 17 . Transversely to this, the tubular bag 14 is longitudinally sealed with a longitudinal sealing seam 18 .

5 zeigt den Schlauchbeutel 14 nachdem die Bodennaht 15 und die Kopfnaht 16 entlang einer Schnittkontur seitlich beschnitten wurden, wobei die Schnittkontur parallel zu der das Füllgutvolumen 17 grenzenden Kontur der Bodennaht 15 und der Kopfnaht 16 verläuft. 5 shows the tubular bag 14 after the bottom seam 15 and the top seam 16 have been trimmed laterally along a cut contour, the cut contour running parallel to the contour of the bottom seam 15 and the top seam 16 bordering the volume of filling material 17 .

6 zeigt eine zweite Ausführungsform 19 eines Schlauchbeutels, der mit der einer Quersiegeleinheit gemäß 3 hergestellt werden kann. Durch Verkürzung der Länge der Schlauchbeutel 19 wird erreicht, dass sich die durch das Füllgutvolumen 20 begrenzenden Konturen der Bodennaht 15 und der Kopfnaht 16 einander berühren. Auf diese Weise können Schlauchbeutel hergestellt werden, die eine große Variation an Konturgestaltungen ermöglichen. 6 shows a second embodiment 19 of a tubular bag, which is provided with a transverse sealing unit according to FIG 3 can be made. By shortening the length of the tubular bag 19 is achieves that the contours of the bottom seam 15 and the top seam 16 delimited by the filling material volume 20 touch one another. In this way, tubular bags can be produced that allow a wide variety of contour designs.

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED IN DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturPatent Literature Cited

  • DE 102010028607 A1 [0001]DE 102010028607 A1 [0001]

Claims (7)

Verfahren zum Betrieb einer Schlauchbeutelmaschine (01) mit einer von einer Vorratsrolle (02) abwickelbaren Folienbahn (03), einer Formschulter (04) zum Umformen der Folienbahn (03) zu einem Folienschlauch (05), einem gegen den Folienschlauch (05) wirkenden Folienabzug (07) zum Weiterbewegen des Folienschlauches (05), einer Längssiegeleinrichtung zum Verschweißen des Folienschlauches (05) parallel zu seiner Transportrichtung mittels einer Längsnaht, und einer Quersiegeleinrichtung (08) mit gegeneinander bewegbaren, den Folienschlauch (05) quer zur Transportrichtung verschweißenden Quersiegeleinheiten (09) zum Erzeugen von Quernähten, wobei durch die Herstellung der Quersiegelnähte ein luftdicht umschlossenes Füllgutvolumen gebildet wird, dadurch gekennzeichnet, dass die Quersiegeleinheiten (09) jeweils mehrere unabhängig voneinander beheizbare Siegelelemente (13) umfasst, wobei beim Quersiegeln der Quersiegelnähte (15, 16) zumindest ein Siegelelement (13) abgeschaltet ist, und wobei durch die abgeschalteten Siegelelemente (13) eine das Füllgutvolumen (17, 20) begrenzende Kontur gebildet wird. Method for operating a tubular bagging machine (01) with a film web (03) that can be unwound from a supply roll (02), a forming shoulder (04) for forming the film web (03) into a film tube (05), a film draw-off acting against the film tube (05). (07) for moving the tubular film (05) onward, a longitudinal sealing device for welding the tubular film (05) parallel to its transport direction by means of a longitudinal seam, and a transverse sealing device (08) with transverse sealing units (09 ) for producing transverse seams, with the production of the transverse sealing seams forming an airtight enclosed volume of filling material, characterized in that the transverse sealing units (09) each comprise a plurality of sealing elements (13) that can be heated independently of one another, with the transverse sealing of the transverse sealing seams (15, 16) at least a sealing element (13) is switched off, and wherein d A contour delimiting the filling material volume (17, 20) is formed by the switched-off sealing elements (13). Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in jeweils zwei aufeinander folgenden Quersiegelnähten unterschiedliche Siegelelemente (13) abgeschaltet und zugeschaltet werden, um an der oberen Quersiegelnaht des Schlauchbeutels und an der unteren Quersiegelnaht des Schlauchbeutels jeweils unterschiedliche das Füllgutvolumen begrenzende Konturen zu erzeugen.procedure after claim 1 , characterized in that different sealing elements (13) are switched on and off in two consecutive transverse sealing seams in order to produce different contours limiting the filling volume on the upper transverse sealing seam of the tubular bag and on the lower transverse sealing seam of the tubular bag. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die das Füllgutvolumen (20) begrenzende Kontur der oberen Quersiegelnaht (16) des Schlauchbeutels (19) und die das Füllgutvolumen (20) begrenzende Kontur der unteren Quersiegelnaht (15) einander berühren.procedure after claim 1 or 2 , characterized in that the filling material volume (20) limiting contour of the upper transverse sealing seam (16) of the tubular bag (19) and the filling material volume (20) limiting contour of the lower transverse sealing seam (15) touch each other. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die obere Quersiegelnaht (16) des Schlauchbeutels (14) und/oder die untere Quersiegelnaht (15) entlang einer Schnittkontur seitlich beschnitten wird.Procedure according to one of Claims 1 until 3 , characterized in that the upper transverse sealing seam (16) of the tubular bag (14) and/or the lower transverse sealing seam (15) is laterally trimmed along a cutting contour. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Schnittkontur zumindest abschnittsweise parallel zu der das Füllgutvolumen (17) begrenzende Kontur der Quersiegelnähte (15, 16) verläuft.procedure after claim 4 , characterized in that the cut contour runs at least in sections parallel to the contour of the transverse sealing seams (15, 16) delimiting the filling material volume (17). Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die zur Siegelung einer Quersiegelnaht (15, 16) vorgesehenen Siegelelemente (13) der Quersiegeleinheiten (09) mit zumindest einem Laser oder Induktionsheizelement oder Widerstandssiegelelement beheizt werden.Procedure according to one of Claims 1 until 5 , characterized in that the sealing elements (13) provided for sealing a transverse sealing seam (15, 16) of the transverse sealing units (09) are heated with at least one laser or induction heating element or resistance sealing element. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die die zur Siegelung einer Quersiegelnaht nicht vorgesehenen Siegelelemente der Quersiegeleinheiten mit zumindest einer Kühleinrichtung gekühlt werden.Procedure according to one of Claims 1 until 6 , characterized in that the sealing elements of the transverse sealing units that are not provided for sealing a transverse sealing seam are cooled with at least one cooling device.
DE102021116967.4A 2021-07-01 2021-07-01 Process for operating a tubular bagging machine Ceased DE102021116967A1 (en)

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US4109792A (en) 1973-04-04 1978-08-29 The Dow Chemical Company Method of packaging and product made thereby
US4350003A (en) 1980-03-13 1982-09-21 Package Machinery Company Sealing head
DE69724598T2 (en) 1997-06-27 2004-08-05 Tetra Laval Holdings & Finance S.A. Packaging machine for the continuous production of sealed packaging of flowable foods from tubular packaging material
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