EP0270109A2 - Method and device for stretching webs of material, especially lid foil webs for packaging containers - Google Patents

Method and device for stretching webs of material, especially lid foil webs for packaging containers Download PDF

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Publication number
EP0270109A2
EP0270109A2 EP87117883A EP87117883A EP0270109A2 EP 0270109 A2 EP0270109 A2 EP 0270109A2 EP 87117883 A EP87117883 A EP 87117883A EP 87117883 A EP87117883 A EP 87117883A EP 0270109 A2 EP0270109 A2 EP 0270109A2
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EP
European Patent Office
Prior art keywords
web
stretching
running direction
moistening
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87117883A
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German (de)
French (fr)
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EP0270109B1 (en
EP0270109A3 (en
Inventor
Josef Finnah
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Finnah GmbH
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Finnah GmbH
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Priority to AT87117883T priority Critical patent/ATE77320T1/en
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Publication of EP0270109A3 publication Critical patent/EP0270109A3/en
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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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/18—Registering sheets, blanks, or webs

Definitions

  • the invention relates to a method for stretching material webs, in particular cover film webs for packaging containers according to the preamble of claim 1. Furthermore, the invention relates to a device for stretching material webs according to the preamble of claim 4.
  • a web of material running from a supply roll is used, the paper layer of which as a whole has already been hydrated by the manufacturer and is coated with an overprint varnish to avoid evaporation.
  • Such a web of material requires printing and drying of printing inks before the hydration process, can only be stored for a limited time due to evaporation that cannot be ruled out, but can only be reduced, has a transport weight that is increased by the weight of the moisture and the overprint varnish and offers increased risk of damage to the paper layer after stretching and even after separating and applying Lids on their packaging containers.
  • a braking device can be provided which acts on the carrier of the supply roll for the material web.
  • material webs which are made of single-layer material, e.g. Plastic film, aluminum foil or the like.
  • stretching devices are known which have a stretching tool which can be engaged against a stretched web section.
  • the invention has for its object to provide a method and an apparatus with which a paper layer comprising, optionally printed, but otherwise unprepared material webs, in particular cover film webs, can be stretched to an extent customary in such webs without damage occurring in the paper layer.
  • the method achieves this object on the basis of one according to the preamble of claim 1 with the features of the characterizing part of claim 1.
  • the device achieves this task on the basis of one according to the preamble of claim 4 with the features of the characterizing part of claim 4.
  • the method and the device enable a rapid, reliable and damage-free stretching of material webs comprising a paper layer, which neither require preparation by the manufacturer nor any special hazards during their further processing are exposed.
  • concentration of the softening of the paper layer brought about by the moistening onto the web section to be stretched in each case enables a precise stretching process without distortion of the printed image, while at the same time there is the possibility of carrying out printing and subsequent ink drying processes independently of the web manufacturer, for example immediately before or after a stretching process and after and before reaching the lid sealing station. Since the paper layer only undergoes intermediate softening, which is essentially limited to the area of the stretching station, adhesive or sealing processes are not impaired by moisture in the paper layer, so that these can be carried out immediately after stretching the web section.
  • This drawing shows a schematic representation of a broken side view of a stretching device, which can form a separate device or can also be part of a packaging machine.
  • the stretching device illustrated in the drawing comprises a device frame 1 which supports deflection rollers 2, 3, 4 and 5 for a material web 6 which consists of at least two layers.
  • a material web 6 which consists of at least two layers.
  • One of these layers namely the lowest layer in the drawing, consists of paper that is laminated, for example, on a polyethylene film.
  • a polyethylene film instead of such a polyethylene film, any other suitable plastic or metal film can be used, but plastic films are lower due to this Cost and good processing properties preferred.
  • the material web 6 After passing the deflection roller 3, the material web 6, the web running direction of which is illustrated by the arrows shown, passes over a web moistening device 7, after which it passes a first tensioning device 8, overruns a stretching tool 9 and finally passes through a second tensioning device 10 before passing through the deflection rollers 4 or 5 leaves the stretching device again.
  • the tensioning devices 8, 10 comprise upper or lower clamping jaws 11, 12, which can be engaged against the web by means of a drive and, in the engaged position, fix the web between them. As a result, a web section 13 is stretched between the tensioning devices 8, 10 and is subject to stretching by the stretching tool 9.
  • the pressure piece 16 of the stretching tool 9 has an arched pressure engagement surface 18, which is preferably designed as a cylinder segment surface.
  • the angled length of the pressure engagement surface 18 measured in the web running direction approximately corresponds to the correspondingly measured length of the stretched web section 13, so that during the stretching process the web section 13 comes into pressure engagement with the pressure piece 16 over almost its entire length.
  • the pressure engagement surface 18 of the pressure piece 16 is preferably heatable, and the pressure piece 16 can for this purpose electric heating coils 19 or the like. Have heating means that advantageously allow different heating of the pressure engagement surface 18 in certain areas. By means of such a different heating, the pressure piece 16 is given a temperature profile in the web running direction on the pressure engagement surface 18, which ensures a transfer of an equal amount of heat per unit area from the pressure engagement surface 18 to the web section 13 in the stretching engagement time between the pressure die 16 and the web section 13.
  • the temperature profile provides that the temperature of the pressure engagement surface 18 is from the culmination line to the leading or trailing edge of the pressure engagement surface 18 rises in a ratio that takes into account the progressively decreasing pressure engagement time in these directions.
  • a further drying station can also be arranged downstream of the tensioning device 10 for example in the area between the deflection rollers 4 and 5.
  • the web moistening device 7 is preferably designed as a spray device which comprises at least one spray nozzle, preferably a slot die. This can have an approximate web width or a spray field that is less than the web width. In the latter case, the spray nozzle by means of a carriage, trolley or the like. Carrier 21 can be moved back and forth in a guide 22 transversely to the web running direction by means of a drive (not illustrated in more detail).
  • the spray device 20 can also comprise a plurality of spray nozzles which are spaced apart from one another and at right angles to the web running direction and which can also be arranged in a row in a row in the web running direction.
  • the spray nozzles are preferably set to a gap.
  • Such nozzle arrangements can also present a spray field of web width or one of narrower width, in which case a reciprocating transverse movement by means of the carrier 21 must be provided in which case.
  • the web moistening device 7 can also be designed as a roller application device, the application roller being able to transfer liquid directly from a supply to the web as an immersion roller or to take over the liquid to be transferred from a donor roller or device.
  • the material web 6 When transported by, for example, a conveyor roller 23, the material web 6 overflows on the path between the tensioning devices 8, 10 the web moistening device 7, which supplies the paper layer opposite it with moisture to an extent that can be adapted to the respective conditions.
  • Distilled water can be used as the moistening agent, optionally with additives, for example those which promote the drying process or which have solidifying effects after the drying process.
  • the pressure piece 16 is actuated and engaged against the stretched web section 13 becomes.
  • the stroke of the pressure piece 16 is determined by the desired stretching dimension taking into account the shape of the pressure engaging surface 18 and is predetermined in each case by a control device which determines the required stretching dimension by scanning web markings.
  • the tensioning device 10 can be followed by a drying station, for example in the area between the deflecting rollers 4, 5, which additionally or solely brings about the drying.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Basic Packing Technique (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Method and device for the intermittent stretching of portions of an at least two-layered web of material, in particular a lid foil web, which surrounds a layer of paper, in which the paper layer is moistened before introduction of an extension force into the web portion to be stretched. This moistening is here carried out immediately before the stretching operation, there being provided two clamping devices (8,10), which are arranged at a distance one behind the other in the running direction of the web, clamp a web portion (13) to be stretched, are capable of being switched on and off and are each provided with clamping elements (11, 12) which can be moved against the web, and a stretching tool (9) which is arranged between the clamping devices (8, 10). The stretching tool (9) comprises a beam-shaped pressure piece (16), which is aligned transversely with respect to the running direction of the web and extends over the web width as well as a drive (15), by means of which the pressure piece (16) can be moved with a movement which is in perpendicular alignment with the plane of the clamped web piece (13) from a starting position disposed on one side relative to the plane of the web piece (13) into an end stretching position. In this arrangement, the stretching tool (9) is preceded in the running direction of the web by a web- moistening device (7).

Description

Die Erfindung bezieht sich auf ein Verfahren zum Recken von Materialbahnen, insbesondere Deckelfolien­bahnen für Verpackungsbehältnisse gemäß dem Oberbe­griff des Anspruchs 1. Ferner bezieht sich die Erfin­dung auf eine Vorrichtung zm Recken von Material­bahnen gemäß dem Oberbegriff des Anspruchs 4.The invention relates to a method for stretching material webs, in particular cover film webs for packaging containers according to the preamble of claim 1. Furthermore, the invention relates to a device for stretching material webs according to the preamble of claim 4.

Bei einem bekannten Verfahren der oben genannten Art (DE-A-34 23 386) findet eine von einer Vorratsrolle ablaufende Materialbahn Verwendung, deren Papier­schicht als Ganzes herstellerseitig bereits hydrati­siert und zur Vermeidung von Verdunstungserscheinungen mit einem Überdrucklack überzogen ist. Eine derartige Materialbahn setzt ein Bedrucken und Trocknen von Druckfarben vor dem Hydratisierungsvorgang voraus, ist aufgrund nicht auszuschließender, sondern nur verrin­gerbarer Verdunstung nur begrenzt lagerfähig, hat ein um das Gewicht der Feuchtigkeit und des Überdruck­lackes erhöhtes Transportgewicht und bietet erhöhte Beschädigungsgefahren der Papierschicht nach dem Recken und auch nach dem Vereinzeln und Aufbringen von Deckeln auf ihren Verpackungsbehältnissen dar.In a known method of the type mentioned above (DE-A-34 23 386), a web of material running from a supply roll is used, the paper layer of which as a whole has already been hydrated by the manufacturer and is coated with an overprint varnish to avoid evaporation. Such a web of material requires printing and drying of printing inks before the hydration process, can only be stored for a limited time due to evaporation that cannot be ruled out, but can only be reduced, has a transport weight that is increased by the weight of the moisture and the overprint varnish and offers increased risk of damage to the paper layer after stretching and even after separating and applying Lids on their packaging containers.

Zur Durchführung des bekannten Reckverfahrens kann eine Bremsvorrichtung vorgesehen sein, die auf den Träger der Vorratsrolle für die Materialbahn einwirkt Für Materialbahnen, die aus einschichtigem Material, z.B. Kunststoffolie, Aluminiumfolie od.dgl., bestehen, sind auch Reckvorrichtungen bekannt, die ein gegen einen aufgespannten Bahnabschnitt einrückbares Reck­werkzeug aufweisen.To carry out the known stretching process, a braking device can be provided which acts on the carrier of the supply roll for the material web. For material webs which are made of single-layer material, e.g. Plastic film, aluminum foil or the like. Also, stretching devices are known which have a stretching tool which can be engaged against a stretched web section.

Der Erfindung liegt die Aufgabe zugrunde, ein Ver­fahren und eine Vorrichtung zu schaffen, mit denen eine Papierschicht umfassende, gegebenenfalls be­druckte, ansonsten aber unvorbereitete Materialbahnen, insbesondere Deckelfolienbahnen, in einem bei derarti­gen Bahnen üblichen Ausmaß ohne Auftreten von Beschä­digungen in der Papierschicht gereckt werden können.The invention has for its object to provide a method and an apparatus with which a paper layer comprising, optionally printed, but otherwise unprepared material webs, in particular cover film webs, can be stretched to an extent customary in such webs without damage occurring in the paper layer.

Diese Aufgabe löst das Verfahren ausgehend von einem solchen nach dem Oberbegriff des Anspruchs 1 mit den Merkmalen des kennzeichnenden Teils des Anspruchs 1.Die Vorrichtung löst diese Aufgabe ausgehend von einer solchen nach dem Oberbegriff des Anspruchs 4 mit den Merkmalen des kennzeichnenden Teils des Anspruchs 4. Hinsichtlich wesentlicher weiterer Ausgestaltungen der Erfindung wird hinsichtlich des Verfahrens auf die Ansprüche 2 und 3 und hinsichtlich der Vorrichtung auf die Ansprüche 5 bis 18 verwiesen.The method achieves this object on the basis of one according to the preamble of claim 1 with the features of the characterizing part of claim 1. The device achieves this task on the basis of one according to the preamble of claim 4 with the features of the characterizing part of claim 4. With regard to essential further refinements of the invention, reference is made to claims 2 and 3 with regard to the method and to claims 5 to 18 with regard to the device.

Verfahren und Vorrichtung ermöglichen ein schnelles, zuverlässiges und beschädigungsfreies Recken von eine Papierschicht umfassenden Materialbahnen, die weder einer herstellerseitigen Vorbereitung bedürfen noch bei ihrer Weiterverarbeitung besonderen Gefährdungen ausgesetzt sind. Die Konzentration der durch die An­feuchtung herbeigeführten Erweichung der Papierschicht auf den jeweils zu reckenden Bahnabschnitt ermöglicht einen präzisen Reckvorgang ohne Druckbildverzerrungen, während gleichzeitig die Möglichkeit gegeben ist, Be­druckungs- und nachfolgende Druckfarbentrockungsvor­gänge vom Bahnhersteller unabhängig durchzuführen, z.B. auch unmittelbar vor einem Reckvorgang oder nach diesem und vor Erreichen der Deckelsiegelungsstation. Da die Papierschicht nur eine Zwischenerweichung er­fährt, die sich im wesentlichen auf den Bereich der Reckstation beschränkt, werden Kleb- oder Siegelvor­gänge nicht durch Feuchtigkeit in der Papierschicht beeinträchtigt, so daß diese unmittelbar nach dem Recken des Bahnabschnittes ausgeführt werden können.The method and the device enable a rapid, reliable and damage-free stretching of material webs comprising a paper layer, which neither require preparation by the manufacturer nor any special hazards during their further processing are exposed. The concentration of the softening of the paper layer brought about by the moistening onto the web section to be stretched in each case enables a precise stretching process without distortion of the printed image, while at the same time there is the possibility of carrying out printing and subsequent ink drying processes independently of the web manufacturer, for example immediately before or after a stretching process and after and before reaching the lid sealing station. Since the paper layer only undergoes intermediate softening, which is essentially limited to the area of the stretching station, adhesive or sealing processes are not impaired by moisture in the paper layer, so that these can be carried out immediately after stretching the web section.

Zahlreiche weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung eines Aus­führungsbeispiels des Gegenstands der Erfindung, das in der Zeichnung näher veranschaulicht ist. Diese Zeichnung zeigt in schematischer Darstellung eine ab­gebrochene Seitenansicht einer Reckvorrichtung, die ein gesondertes Gerät bilden oder auch Teil einer Ver­packungsmaschine sein kann.Numerous further advantages and details emerge from the following description of an exemplary embodiment of the object of the invention, which is illustrated in more detail in the drawing. This drawing shows a schematic representation of a broken side view of a stretching device, which can form a separate device or can also be part of a packaging machine.

Die in der Zeichnung veranschaulichte Reckvorrichtung umfaßt ein Vorrichtungsgestell 1, das Umlenkrollen 2,3,4 und 5 für eine Materialbahn 6 lagert, die zumin­dest aus zwei Schichten besteht. Eine dieser Schich­ten, und zwar die jeweils in der Zeichnung unterste Schicht, besteht aus Papier, das beispielsweise auf eine Polyäthylenfolie aufkaschiert ist. Anstelle einer solchen Polyäthylenfolie kann jede andere geeignete Kunststoff- oder auch eine Metallfolie Anwendung fin­den, jedoch sind Kunststoffolie aufgrund niedriger Kosten und guter Verarbeitungseigenschaften bevorzugt.The stretching device illustrated in the drawing comprises a device frame 1 which supports deflection rollers 2, 3, 4 and 5 for a material web 6 which consists of at least two layers. One of these layers, namely the lowest layer in the drawing, consists of paper that is laminated, for example, on a polyethylene film. Instead of such a polyethylene film, any other suitable plastic or metal film can be used, but plastic films are lower due to this Cost and good processing properties preferred.

Nach Passieren der Umlenkrolle 3 überläuft die Mate­rialbahn 6, deren Bahnlaufrichtung durch die einge­zeichneten Pfeile veranschaulicht ist, eine Bahnbe­feuchtungsvorrichtung 7, wonach sie eine erste Spann­vorrichtung 8 passiert, ein Reckwerkzeug 9 überläuft und schließlich eine zweite Spannvorrichtung 10 durch­läuft, bevor sie nach Passieren der Umlenkrollen 4 bzw. 5 die Reckvorrichtung wieder verläßt.After passing the deflection roller 3, the material web 6, the web running direction of which is illustrated by the arrows shown, passes over a web moistening device 7, after which it passes a first tensioning device 8, overruns a stretching tool 9 and finally passes through a second tensioning device 10 before passing through the deflection rollers 4 or 5 leaves the stretching device again.

Die Spannvorrichtungen 8,10 umfassen obere bzw. untere Klemmbacken 11,12, die mittels eines Antriebs gegen die Bahn einrückbar sind und in eingerückter Stellung diese zwischen sich festlegen. Dadurch wird zwischen den Spannvorrichtungen 8,10 ein Bahnabschnitt 13 auf­gespannt, welcher der Reckung durch das Reckwerkzeug 9 unterliegt.The tensioning devices 8, 10 comprise upper or lower clamping jaws 11, 12, which can be engaged against the web by means of a drive and, in the engaged position, fix the web between them. As a result, a web section 13 is stretched between the tensioning devices 8, 10 and is subject to stretching by the stretching tool 9.

Für die Klemmbacken 11,12 der Spannvorrichtungen 8,10 können gesonderte Antriebe vorgesehen sein, jedoch besteht auch die Möglichkeit, die Betätigung der Klemmbacken 12 durch ein Joch 14 vorzunehmen, das durch den Druckmittelzylinder 15 für das Druckstück 16 des Klemmwerkzeugs 9 mitbetätigbar ist. In diesem Fal­le sind die oberen Klemmbacken unmittelbar oberhalb der Ebene des Bahnabschnitts 13 ortsfest am Vorrich­tungsgestell 1 abgestützt, und die unteren Klemmbacken 12 sind mit dem Joch 14 verbunden, das seinerseits mit der Kolbenstange 17 des Druckmittelzylinders 15 ver­bunden sein kann.Separate drives can be provided for the clamping jaws 11, 12 of the clamping devices 8, 10, but there is also the possibility of actuating the clamping jaws 12 by means of a yoke 14 which can also be actuated by the pressure medium cylinder 15 for the pressure piece 16 of the clamping tool 9. In this case, the upper jaws are fixedly supported on the device frame 1 immediately above the level of the web section 13, and the lower jaws 12 are connected to the yoke 14, which in turn can be connected to the piston rod 17 of the pressure cylinder 15.

Das Druckstück 16 des Reckwerkzeugs 9 weist eine bo­genförmig gewölbte Druckeingriffsfläche 18 auf, die bevorzugt als Zylindersegmentfläche ausgebildet ist.The pressure piece 16 of the stretching tool 9 has an arched pressure engagement surface 18, which is preferably designed as a cylinder segment surface.

Die in Bahnlaufrichtung gemessene abgewinkelte Länge der Druckeingriffsfläche 18 entspricht annähernd der entsprechend gemessenen Länge des aufgespannten Bahn­abschnitts 13, so daß während des Reckvorganges der Bahnabschnitt 13 nahezu über seine gesamte Länge in Druckeingriff mit dem Druckstück 16 gelangt.The angled length of the pressure engagement surface 18 measured in the web running direction approximately corresponds to the correspondingly measured length of the stretched web section 13, so that during the stretching process the web section 13 comes into pressure engagement with the pressure piece 16 over almost its entire length.

Die Druckeingriffsfläche 18 des Druckstücks 16 ist bevorzugtermaßen beheizbar, und das Druckstück 16 kann zu diesem Zweck elektrische Heizspiralen 19 oder dg.dgl. Heizmittel aufweisen, die vorteilhaft eine bereichsweise unterschiedliche Beheizung der Druckein­griffsfläche 18 ermöglichen. Durch eine solche unter­schiedliche Beheizung wird dem Druckstück 16 an der Druckeingriffsfläche 18 ein Temperaturprofil in Bahn­laufrichtung vorgegeben, das in der Reckeingriffszeit zwischen Druckstück 16 und Bahnabschnitt 13 eine Über­tragung einer pro Flächeneinheit gleichen Wärmemenge von der Druckeingriffsfläche 18 auf den Bahnabschnitt 13 sicherstellt. Da die Eingriffszeit zwischen der Druckeingriffsfläche 18 und dem Bahnabschnitt 13 im Bereich der Kulminationslinie des Druckstücks 16 am längsten und im Bereich der vorlaufenden und der nach­laufenden Randkante des Druckstücks 16 am kürzesten ist, sieht das Temperaturprofil vor, daß die Tempera­tur der Druckeingriffsfläche 18 von der Kulminations­linie zu der vorlaufenden bzw. nachlaufenden Randkante der Druckeingriffsfläche 18 hin in einem Verhältnis ansteigt, das der in diesen Richtungen fortschreitend abnehmenden Druckeingriffszeit Rechnung trägt.The pressure engagement surface 18 of the pressure piece 16 is preferably heatable, and the pressure piece 16 can for this purpose electric heating coils 19 or the like. Have heating means that advantageously allow different heating of the pressure engagement surface 18 in certain areas. By means of such a different heating, the pressure piece 16 is given a temperature profile in the web running direction on the pressure engagement surface 18, which ensures a transfer of an equal amount of heat per unit area from the pressure engagement surface 18 to the web section 13 in the stretching engagement time between the pressure die 16 and the web section 13. Since the engagement time between the pressure engagement surface 18 and the web section 13 is longest in the region of the culmination line of the pressure piece 16 and shortest in the area of the leading and trailing edge of the pressure piece 16, the temperature profile provides that the temperature of the pressure engagement surface 18 is from the culmination line to the leading or trailing edge of the pressure engagement surface 18 rises in a ratio that takes into account the progressively decreasing pressure engagement time in these directions.

Zusätzlich zu dieser Erwärmung des zu reckenden Bahn­abschnitts 13 zum Zwecke der Trocknung dessen Papier­schicht kann auch noch eine weitere Trocknungsstation der Spannvorrichtung 10 nachgeordnet werden, bei­ spielsweise im Bereich zwischen den Umlenkrollen 4 und 5.In addition to this heating of the web section 13 to be stretched for the purpose of drying the paper layer thereof, a further drying station can also be arranged downstream of the tensioning device 10 for example in the area between the deflection rollers 4 and 5.

Die Bahnbefeuchtungsvorrichtung 7 ist bei dem darge­stellten Beispiel und bevorzugt als Sprühvorrichtung ausgebildet, die zumindest eine Sprühdüse ,vorzugswei­se eine Breitschlitzdüse , umfaßt. Diese kann an­nähernd Bahnbreite besitzen oder aber ein Sprühfeld haben, das die Bahnbreite unterschreitet. In letzterem Falle ist die Sprühdüse mittels eines Schlittens, Wa­gens od.dgl. Trägers 21 in einer Führung 22 quer zur Bahnlaufrichtung mittels eines nicht näher veranschau­lichten Antriebs hin- und herbewegbar ist.In the example shown, the web moistening device 7 is preferably designed as a spray device which comprises at least one spray nozzle, preferably a slot die. This can have an approximate web width or a spray field that is less than the web width. In the latter case, the spray nozzle by means of a carriage, trolley or the like. Carrier 21 can be moved back and forth in a guide 22 transversely to the web running direction by means of a drive (not illustrated in more detail).

Anstelle einer einzelnen Sprühdüse kann die Sprühvor­richtung 20 auch eine Mehrzahl von im Abstand neben­einander und quer zur Bahnlaufrichtung verteilt ange­ordnete Sprühdüsen umfassen, die in Bahnlaufrichtung auch in mehreren Reihen hintereinander angeordnet sein können. Im letzteren Falle sind die Sprühdüsen vor­zugsweise auf Lücke gesetzt. Auch derartige Düsenan­ordnungen können ein Sprühfeld von Bahnbreite oder ein solches von geringerer Breite darbieten, wobei in letzterem Falle welchem Falle wiederum eine hin- und hergehende Querbewegung mittels des Trägers 21 vorzu­sehen ist.Instead of a single spray nozzle, the spray device 20 can also comprise a plurality of spray nozzles which are spaced apart from one another and at right angles to the web running direction and which can also be arranged in a row in a row in the web running direction. In the latter case, the spray nozzles are preferably set to a gap. Such nozzle arrangements can also present a spray field of web width or one of narrower width, in which case a reciprocating transverse movement by means of the carrier 21 must be provided in which case.

Die Bahnbefeuchtungsvorrichtung 7 kann statt dessen auch als Walzenauftragsvorrichtung ausgebildet sein, wobei die Auftragswalze unmittelbar als Tauchwalze Flüssigkeit aus einem Vorrat auf die Bahn übertragen oder die zu übertragende Flüssigkeit von einer Spen­derwalze oder -vorrichtung übernehmen kann.Instead, the web moistening device 7 can also be designed as a roller application device, the application roller being able to transfer liquid directly from a supply to the web as an immersion roller or to take over the liquid to be transferred from a donor roller or device.

Bei Transport durch beispielsweise ein Förderwalzen­ paar 23 überläuft die Materialbahn 6 auf dem Wege zwischen die Spannvorrichtungen 8,10 die Bahnbefeuch­tungsvorrichtung 7, welche der ihr gegenüberliegenden Papierschicht Feuchtigkeit in einem an die jeweiligen Verhältnisse anpaßbaren Ausmaß zuführt. Als Befeuch­tungsmittel kann destilliertes Wasser Anwandung fin­den, gegebenenfalls mit Zusatzstoffen, z.B. solchen, die den Trocknungsvorgang begünstigen oder Verfesti­gungswirkungen nach dem Trocknungsvorgang entfalten.When transported by, for example, a conveyor roller 23, the material web 6 overflows on the path between the tensioning devices 8, 10 the web moistening device 7, which supplies the paper layer opposite it with moisture to an extent that can be adapted to the respective conditions. Distilled water can be used as the moistening agent, optionally with additives, for example those which promote the drying process or which have solidifying effects after the drying process.

Befindet sich ein im vorliegenden Beispiel unterseitig im Bereich seiner Papierschicht vollständig an- bzw. durchgefeuchteter Bahnabschnitt 13 zwischen den Spann­vorrichtungen 8,10, werden diese zum Festlegen des Bahnabschnitts 13 eingerückt bzw. geschlossen, wonach das Druckstück 16 betätigt und gegen den aufgespannten Bahnabschnitt 13 eingerückt wird. Der Hubweg des Druckstücks 16 wird durch das gewünschte Reckmaß unter Berücksichtigung der Form der Druckeingriffsfläche 18 bestimmt und jeweils vorgegeben durch eine Steuerungs­vorrichtung, die unter Abtasten von Bahnmarkierungen das erforderliche Reckmaß ermittelt.If, in the present example, there is a web section 13 that is completely moistened or moistened underneath in the area of its paper layer between the tensioning devices 8, 10, these are engaged or closed to fix the web section 13, after which the pressure piece 16 is actuated and engaged against the stretched web section 13 becomes. The stroke of the pressure piece 16 is determined by the desired stretching dimension taking into account the shape of the pressure engaging surface 18 and is predetermined in each case by a control device which determines the required stretching dimension by scanning web markings.

Durch die Beheizung der Druckeingriffsfläche 18 er­folgt bereits während des Reckvorganges eine Trocknung der Papierschicht, die vollständig sein kann. Sofern in Abhängigkeit von Besonderheiten von zur Verwendung kommender Materialien eine vollständige Trocknung im Bereich der Reckstation unerwünscht oder nicht durch­führbar ist, kann der Spannvorrichtung 10 eine Trocknungsstation nachgeschaltet sein, beispielsweise im Bereich zwischen den Umlenkrollen 4,5, die zusätz­lich oder allein die Trocknung herbeiführt.By heating the pressure engaging surface 18, the paper layer is already dried during the stretching process, which can be complete. If, depending on the particularities of the materials to be used, complete drying in the area of the stretching station is undesirable or cannot be carried out, the tensioning device 10 can be followed by a drying station, for example in the area between the deflecting rollers 4, 5, which additionally or solely brings about the drying.

Claims (18)

1. Verfahren zum intermittierenden, abschnittsweisen Recken einer zumindest zweischichtigen, eine Schicht aus Papier umfasenden Materialbahn, insbesondere Deckelfolienbahn, bei dem die Papierschicht vor Ein­tragen einer Dehnungskraft in den zu reckenden Bahn­abschnitt angefeuchtet wird, dadurch gekennzeichnet, daß die Anfeuchtung unmittellbar vor dem Reckvorgang vorgenommen wird.1. A method for intermittent, section-wise stretching of an at least two-layer web of material comprising a layer of paper, in particular a cover film web, in which the paper layer is moistened prior to the introduction of an expansion force into the web section to be stretched, characterized in that the moistening is carried out immediately before the stretching process . 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Anfeuchtung lediglich jeweils in dem nachfol­gend zu reckenden Bahnabschnitt vorgenommen wird.2. The method according to claim 1, characterized in that the moistening is carried out only in each case in the web section to be stretched subsequently. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß die befeuchtete Papierschicht des zu reckenden Bahnabschnitts während des Reckvorgangs und/oder im unmittelbaren Anschluß an diesen und vor einer Weiterverarbeitung der Bahn getrocknet wird.3. The method according to claim 1 or 2, characterized in that the moistened paper layer of the web section to be stretched is dried during the stretching process and / or immediately after it and before further processing of the web. 4. Vorrichtung zum Recken von Materialbahnen (6), ins­besondere Deckelfolienbahnen für Verpackungsbehält­nisse, mit zwei im Abstand in Bahnlaufrichtung hinter­einander angeordneten, einen zu reckenden Bahnab­schnitt (13) aufspannenden, ein- und ausschaltbaren Spannvorrichtungen (8,10) mit jeweils gegen die Bahn einrückbaren Spanngliedern, insbesondere Klemmbacken (11,12) von Bahnbreite, und mit einem zwischen den Spannvorrichtungen (8,10) angeordneten Reckwerkzeug (9) ,das ein balkenförmiges, quer zur Bahnlaufrichtung ausgerichtetes, sich über die Bahnbreite erstreckendes Druckstück (16) sowie einen Antrieb (15) umfaßt, mittels dem das Druckstück (16) in einer senkrecht zur Ebene des aufgespannten Bahnstücks (13) ausgerichteten Bewegung aus einer einseitig zur Ebene des Bahnstücks (13) gelegenen Ausgangsstellung in eine Reckendstel­lung bewegbar ist, dadurch gekennzeichnet, daß dem Reckwerkzeug (9) in Bahnlaufrichtung eine Bahnbe­feuchtungsvorrichtung (7) vorgeordnet ist.4.Device for stretching material webs (6), in particular cover film webs for packaging containers, with two tensioning devices (8, 10) which can be switched on and off, each arranged one behind the other in the web running direction and spanning a web section (13), each against the web indentable tendons, in particular clamping jaws (11, 12) of web width, and with a stretching tool (9) arranged between the tensioning devices (8, 10), which has a bar-shaped pressure piece (16), which is oriented transversely to the web running direction and extends across the web width, and one Drive (15), by means of which the pressure piece (16) can be moved in a movement perpendicular to the plane of the stretched web piece (13) from a starting position on one side to the plane of the web piece (13) into a stretching end position, characterized in that the stretching tool (9) a web moistening device (7) is arranged upstream in the web running direction. 5. Vorrichtung nach Anspruch 4, dadurch gekennzeich­net, daß die Bahnbefeuchtungsvorrichtung (7) in Bahn­laufrichtung unmittelbar vor der ersten Spannvorrich­tung (8) angeordnet ist.5. The device according to claim 4, characterized in that the web moistening device (7) is arranged in the web running direction immediately before the first tensioning device (8). 6. Vorrichtung nach Anspruch 4 oder 5, dadurch gekenn­zeichnet, daß die Bahnbefeuchtungsvorrichtung (7) und das Reckwerkzeug (9) der Bahn (6) auf der gleichen Bahnseite zugeordnet sind.6. The device according to claim 4 or 5, characterized in that the web moistening device (7) and the stretching tool (9) of the web (6) are assigned to the same web side. 7. Vorrichtung nach einem oder mehreren der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die Bahnbefeuch­tungsvorrichtung (7) als Sprühvorrichtung (20) ausge­bildet ist.7. The device according to one or more of claims 4 to 6, characterized in that the web moistening device (7) is designed as a spray device (20). 8. Vorrichtung nach Anspruch 7, dadurch gekennzeich­net, daß die Bahnbefeuchtungsvorrichtung (7) eine Mehrzahl von im Abstand nebeneinander und quer zur Bahnlaufrichtung verteilt angeordneten Sprühdüsen um­faßt.8. The device according to claim 7, characterized in that the web moistening device (7) comprises a plurality of spray nozzles arranged next to one another at a distance and transverse to the web running direction. 9. Vorrichtung nach Anspruch 7 oder 8, dadurch gekenn­zeichnet, daß in Bahnlaufrichtung mehrere Reihen von Sprühdüsen hintereinander angeordnet sind.9. Apparatus according to claim 7 or 8, characterized in that a plurality of rows of spray nozzles are arranged one behind the other in the web running direction. 10. Vorrichtung nach Anspruch 9, dadurch gekennzeich­net, daß die Sprühdüsen auf Lücke gesetzt sind.10. The device according to claim 9, characterized in that the spray nozzles are set to gap. 1. Vorrichtung nach Anspruch 7, dadurch gekennzeich­net, daß die Sprühvorrichtung (20) eine Breitschlitz--­Sprühdüse aufweist.1. The device according to claim 7, characterized in that the spray device (20) has a wide slot spray nozzle. 12. Vorrichtung nach einem oder mehreren der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß die Sprühvor­richtung (20) ein Sprühfeld mit einer Breite aufweist, welche die Bahnbreite unterschreitet, und daß die Sprühvorrichtung (20) mittels eines Schlittens, Wagens od.dgl. Trägers (21) quer zur Bahnlaufrichtung hin­und herbewegbar ist.12. The device according to one or more of claims 7 to 11, characterized in that the spray device (20) has a spray field with a width which is less than the web width, and that the spray device (20) by means of a carriage, trolley or the like. Carrier (21) can be moved back and forth transversely to the web running direction. 13. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Bahnbefeuch­tungsvorrichtung (7) als Walzenauftragsvorrichtung ausgebildet ist.13. The device according to one or more of claims 1 to 3, characterized in that the web moistening device (7) is designed as a roller application device. 14. Vorrichtung nach einem oder mehreren der Ansprüche 4 bis 13, dadurch gekennzeichnet, daß das Druckstück (16) eine im Querschnitt bogenförmig gewölbte Druck­eingriffsfläche (18) aufweist.14. The device according to one or more of claims 4 to 13, characterized in that the pressure piece (16) has a pressure-engaging surface (18) which is arched in cross section. 15. Vorrichtung nach Anspruch 14, dadurch gekennzeich­net, daß die Druckeingriffsfläche (18) eine Zylinder­segmentfläche bildet.15. The apparatus according to claim 14, characterized in that the pressure engagement surface (18) forms a cylinder segment surface. 16. Vorrichtung nach Anspruch 15, dadurch gekennzeich­net, daß die in Bahnlaufrichtung gemessene abgewickel­ te Länge-der Druckeingriffsfläche (18) annähernd der entsprechend gemessenen Länge des aufgespannten Bahn­abschnitts (13) entspricht.16. The apparatus according to claim 15, characterized in that the unwound measured in the web running direction te length-the pressure engagement surface (18) approximately corresponds to the correspondingly measured length of the stretched web section (13). 17. Vorrichtung nach einem oder mehreren der Ansprüche 4 bis 16, dadurch gekennzeichnet, daß die Druckein­griffsfläche (18) beheizbar ist.17. The device according to one or more of claims 4 to 16, characterized in that the pressure engagement surface (18) is heatable. 18. Vorrichtung nach Anspruch 17, dadurch gekennzeich­net, daß die Druckeingriffsfläche (18) bereichsweise unterschiedlich temperierbar ist und ein Temperatur­profil in Bahnlaufrichtung aufweist, das in der Druck­eingriffszeit zwischen Druckstück (16) und Bahnab­schnitt (13) eine Übertragung einer pro Flächeneinheit gleichen Wärmemenge von der Druckeingriffsfläche (18) auf den Bahnabschnitt (13) erbringt.18. The apparatus according to claim 17, characterized in that the pressure engagement surface (18) can be tempered differently in some areas and has a temperature profile in the web running direction which in the pressure engagement time between the pressure piece (16) and web section (13) a transfer of an equal amount of heat per unit area from the Pressure engagement surface (18) on the web section (13).
EP87117883A 1986-12-04 1987-12-03 Method and device for stretching webs of material, especially lid foil webs for packaging containers Expired - Lifetime EP0270109B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117883T ATE77320T1 (en) 1986-12-04 1987-12-03 METHOD AND DEVICE FOR STRETCHING MATERIAL WEBS, IN PARTICULAR LID FILM WEBS FOR PACKAGING CONTAINERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863641415 DE3641415A1 (en) 1986-12-04 1986-12-04 METHOD AND DEVICE FOR RECEIVING MATERIAL SHEETS, IN PARTICULAR LID FILM SHEETS FOR PACKAGING CONTAINERS
DE3641415 1986-12-04

Publications (3)

Publication Number Publication Date
EP0270109A2 true EP0270109A2 (en) 1988-06-08
EP0270109A3 EP0270109A3 (en) 1989-05-10
EP0270109B1 EP0270109B1 (en) 1992-06-17

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ID=6315444

Family Applications (1)

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EP87117883A Expired - Lifetime EP0270109B1 (en) 1986-12-04 1987-12-03 Method and device for stretching webs of material, especially lid foil webs for packaging containers

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EP (1) EP0270109B1 (en)
AT (1) ATE77320T1 (en)
DE (2) DE3641415A1 (en)
ES (1) ES2033782T3 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675129A (en) * 1992-09-30 1997-10-07 Hewlett-Packard Company Initial track recovery in position-sensing systems that use windowing patterns
EP2444324A1 (en) * 2010-10-20 2012-04-25 Multivac Sepp Haggenmüller GmbH & Co. KG Deep draw packaging machine and method for stretching a sheet of film
WO2020207670A1 (en) * 2019-04-11 2020-10-15 Syntegon Technology Gmbh Method and device for processing a cover of a package
DE102020209819A1 (en) 2020-08-04 2022-02-10 Multivac Sepp Haggenmüller Se & Co. Kg film clamping
EP4001137A1 (en) * 2020-11-16 2022-05-25 Uhlmann Pac-Systeme GmbH & Co. KG Handling device and method for handling web-shaped packaging material
DE102021114742A1 (en) 2021-06-08 2022-12-08 Syntegon Technology Gmbh Method for preconditioning a packaging material web based on fiber material in a packaging molding process and preconditioning device for carrying out the method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432672A (en) * 1965-03-04 1969-03-11 Mach O Matic Inc Photoelectric web registration control including two photocells which generate opposite polarity signals that terminate simultaneously
US4018028A (en) * 1971-07-23 1977-04-19 Societe D'application Plastique Mecanique Et Electronique, Plastimecanique S.A. Arrangement for aligning heat-sealable lids on mating product-filled containers
DE3026856A1 (en) * 1980-07-16 1982-02-04 Hoechst Ag, 6000 Frankfurt Front and rear marked package prodn. - using two foil tracks carrying same markings but having different measurements, optically checked, welded and later separated
DE3423386A1 (en) * 1984-01-03 1985-07-11 Trentesaux-Toulemonde S.A., Tourcoing Printed container lid and method of mounting the container lid on a container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432672A (en) * 1965-03-04 1969-03-11 Mach O Matic Inc Photoelectric web registration control including two photocells which generate opposite polarity signals that terminate simultaneously
US4018028A (en) * 1971-07-23 1977-04-19 Societe D'application Plastique Mecanique Et Electronique, Plastimecanique S.A. Arrangement for aligning heat-sealable lids on mating product-filled containers
DE3026856A1 (en) * 1980-07-16 1982-02-04 Hoechst Ag, 6000 Frankfurt Front and rear marked package prodn. - using two foil tracks carrying same markings but having different measurements, optically checked, welded and later separated
DE3423386A1 (en) * 1984-01-03 1985-07-11 Trentesaux-Toulemonde S.A., Tourcoing Printed container lid and method of mounting the container lid on a container

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5675129A (en) * 1992-09-30 1997-10-07 Hewlett-Packard Company Initial track recovery in position-sensing systems that use windowing patterns
EP2444324A1 (en) * 2010-10-20 2012-04-25 Multivac Sepp Haggenmüller GmbH & Co. KG Deep draw packaging machine and method for stretching a sheet of film
WO2020207670A1 (en) * 2019-04-11 2020-10-15 Syntegon Technology Gmbh Method and device for processing a cover of a package
US11981470B2 (en) 2019-04-11 2024-05-14 Syntegon Technology Gmbh Method and device for processing a cover of a package
DE102020209819A1 (en) 2020-08-04 2022-02-10 Multivac Sepp Haggenmüller Se & Co. Kg film clamping
EP4001137A1 (en) * 2020-11-16 2022-05-25 Uhlmann Pac-Systeme GmbH & Co. KG Handling device and method for handling web-shaped packaging material
CN114572466A (en) * 2020-11-16 2022-06-03 乌尔曼包装***有限责任及合伙两合公司 Processing device and method for processing web packaging material
US11866211B2 (en) 2020-11-16 2024-01-09 Uhlmann Pac-Systeme Gmbh & Co. Kg Handling device and method for handling web-shaped packaging material
CN114572466B (en) * 2020-11-16 2024-04-26 乌尔曼包装***有限责任及合伙两合公司 Processing device and method for processing web-shaped packaging material
DE102021114742A1 (en) 2021-06-08 2022-12-08 Syntegon Technology Gmbh Method for preconditioning a packaging material web based on fiber material in a packaging molding process and preconditioning device for carrying out the method

Also Published As

Publication number Publication date
DE3641415A1 (en) 1988-06-09
ATE77320T1 (en) 1992-07-15
DE3779879D1 (en) 1992-07-23
EP0270109B1 (en) 1992-06-17
ES2033782T3 (en) 1993-04-01
EP0270109A3 (en) 1989-05-10

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