EP3162746B1 - Method for producing flat-pressed stored roles of a pre-compressed sealing tape - Google Patents

Method for producing flat-pressed stored roles of a pre-compressed sealing tape Download PDF

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Publication number
EP3162746B1
EP3162746B1 EP16187413.6A EP16187413A EP3162746B1 EP 3162746 B1 EP3162746 B1 EP 3162746B1 EP 16187413 A EP16187413 A EP 16187413A EP 3162746 B1 EP3162746 B1 EP 3162746B1
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EP
European Patent Office
Prior art keywords
supply rolls
vacuum chamber
roll
supply
pressed
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EP16187413.6A
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German (de)
French (fr)
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EP3162746A1 (en
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Horst RESCH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/28—Wound package of webs
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/24—Packaging annular articles, e.g. tyres
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66—Sealings
    • E04B1/68—Sealings of joints, e.g. expansion joints
    • E04B1/6812—Compressable seals of solid form
    • 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/50—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins
    • B65B11/52—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins one sheet being rendered plastic, e.g. by heating, and forced by fluid pressure, e.g. vacuum, into engagement with the other sheet and contents, e.g. skin-, blister-, or bubble- packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • B65D81/2023—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container
    • B65D81/203—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum in a flexible container with one or several rigid inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/67—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material
    • B65D85/671—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form
    • B65D85/672—Containers, packaging elements or packages, specially adapted for particular articles or materials for web or tape-like material wound in flat spiral form on cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/31—Suction box; Suction chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/171—Physical features of handled article or web
    • B65H2701/1718—Porous or permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/177—Fibrous or compressible material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1842—Wound packages of webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1922—Specific article or web for covering surfaces such as carpets, roads, roofs or walls

Definitions

  • the invention relates to a method for producing flattened supply rolls of a precompressed gasket tape, wherein an open-cell foam sheet is wound under compression on a hollow core to a master roll and held by a sheath before the sheathed mother roll divided into individual supply rolls and these supply rolls depending on be flattened.
  • a corresponding foam web is first wound onto a hollow core under sufficient tension for precompression, and the compression of the formed coil is held by a jacket.
  • the mother roll produced in this way is then separated into individual supply rolls according to the required bandwidth. Since the cutting tool penetrates into the parting line during the separation of the parent roll and thereby takes place an axial displacement of the separated turns, the supply rolls separated from the mother roll are not flat, but have a bowl-like curvature, due to the radial forces acting through the precompression of the sealing tapes in Connection with the mutual axial displacement of the tape turns is reinforced over time.
  • the invention solves the problem by the fact that the supply rolls are each inserted into a gas-tight envelope of two with the exception of an insertion at the edge interconnected, tensile cover films and placed in a vacuum chamber and that the insertion of the shell after an evacuation of the vacuum chamber is sealed gas-tight, before the supply rolls are flattened by aeration of the vacuum chamber.
  • the cover films attach themselves to the supply roll, which is flattened in a surprising manner, without the need for additional external forces.
  • This effect is probably related to the fact that due to the tensile strength of the cover sheets, the cover sheet on the concave side of the supply roll can hardly be drawn against the core ring of the supply roll, while the cover sheet on the opposite convex supply side because of their opposite the cover sheet on the concave side larger area is retracted within the outer periphery of the supply roll by the outer air pressure in the core ring and thereby exerts a force on the tape roll, which leads to a flattening of the supply roll.
  • the supply roll is not only flattened, but held in this flattened position due to the vacuum packaging within the gas-tight envelope of the two cover sheets, so that after opening the shell a supply roll from a pre-compressed sealing tape with flush tape turns is available.
  • a vacuum chamber 2 which comprises a welding device 3 for gas-tight sealing of a shell 4 for the supply roll 1.
  • This shell 4 is composed of two tensile cover films 5, 6, which are connected in a gastight manner along their peripheral edges with the exception of an insertion opening 7 for the supply roll 1.
  • the supply roll 1 is separated from a master roll formed from a porous open-cell foam sheet wound around a hollow core under compression, the compressed roll of the foam sheet being held in place by a sheath.
  • the open-cell foam sheet may optionally be impregnated prior to winding.
  • the supply rolls 1 are each plugged into a casing 4, which is sealed in a gastight manner within the vacuum chamber 2 after its evacuation via the welding device 3, before the vacuum chamber 2 is ventilated again.
  • a corresponding connection 9 for a vacuum pump is indicated.
  • FIGS. 2 and 3 can be removed, put the cover sheets 5 and 6 according to the Fig. 2 in the ventilation of the vacuum chamber 2 to the supply roll 1, as far as the dimensions of the cover layers 5 and 6 of the shell 4 allow.
  • the tensile strength of the cover sheets 5 and 6 requires that the cover sheet 5 on the concave side of the supply roll 1 opposes an insertion into the cavity of the core ring 8, so that the external air pressure pulling the cover sheet 6 on the convex side of the supply roll 1 in the cavity of Core ring 8 conditioned because this cover sheet 6 in comparison to the cover sheet 5 with respect to the supply roll 1 has a radial excess length.
  • the vacuum within the gas-tightly sealed shell 4 caused in cooperation with the external air pressure compression of the shell 4 in the region of the cavity of the core ring 8 with the effect that forces are exerted on the supply roll 1 through the cover sheet 6 on the convex side, the lead a flattening of the supply roll 1, as shown in the Fig. 3 is drawn.
  • the supply roll 1 is thus not only flattened within the evacuated shell 4, but also held in the flattened state, so that the shell 4 is an advantageous packaging for the supply roll 1.

Description

Die Erfindung bezieht sich auf ein Verfahren zum Herstellen flachgedrückter Vorratsrollen eines vorkomprimierten Dichtungsbands, wobei eine offenporige Schaumstoffbahn unter einer Komprimierung auf einen hohlen Kern zu einer Mutterrolle aufgewickelt und durch eine Ummantelung festgehalten wird, bevor die ummantelte Mutterrolle in einzelne Vorratsrollen unterteilt und diese Vorratsrollen je für sich flachgedrückt werden.The invention relates to a method for producing flattened supply rolls of a precompressed gasket tape, wherein an open-cell foam sheet is wound under compression on a hollow core to a master roll and held by a sheath before the sheathed mother roll divided into individual supply rolls and these supply rolls depending on be flattened.

Zur Herstellung vorkomprimierter Dichtungsbänder aus einem offenzelligen Kunststoff wird zunächst eine entsprechende Schaumstoffbahn auf einen hohlen Kern unter einer für die Vorkomprimierung ausreichenden Zugspannung aufgewickelt und die Komprimierung des gebildeten Wickels durch eine Ummantelung festgehalten. Die auf diese Weise hergestellte Mutterrolle wird dann in einzelne Vorratsrollen entsprechend der geforderten Bandbreite getrennt. Da beim Durchtrennen der Mutterrolle das Trennwerkzeug in die Trennfuge eindringt und dabei eine axiale Verdrängung der abgetrennten Windungen stattfindet, sind die von der Mutterrolle abgetrennten Vorratsrollen nicht eben, sondern weisen eine schüsselartige Wölbung auf, die aufgrund der durch die Vorkomprimierung der Dichtungsbänder wirksamen radialen Kräfte in Verbindung mit dem gegenseitigen axialen Versatz der Bandwindungen mit der Zeit verstärkt wird. Es werden daher die von der Mutterrolle abgetrennten Vorratsrollen vor ihrer Verpackung mit dem Ziel flachgedrückt, einem gegenseitigen axialen Versatz der Bandwindungen entgegenzuwirken und damit ein zu einer Wölbung der Vorratsrolle führendes randseitiges Aufweiten des Dichtungsbands zu unterbinden. Dieses Flachdrücken der von der Mutterrolle abgetrennten Vorratsrollen stellt jedoch einen zusätzlichen, den Herstellungsaufwand vergrößernden Bearbeitungsschritt dar. Dokument US 3,437,194 offenbart ein Verfahren und eine Vorrichtung zur Verpackung der Rollen mit eine Vakuumhülle. Der Erfindung liegt somit die Aufgabe zugrunde, ein Verfahren anzugeben, das die Herstellung verpackter, flachgedrückter Vorratsrollen mit einem vergleichsweise geringen Arbeitsaufwand erlaubt.To produce pre-compressed sealing tapes of an open-cell plastic, a corresponding foam web is first wound onto a hollow core under sufficient tension for precompression, and the compression of the formed coil is held by a jacket. The mother roll produced in this way is then separated into individual supply rolls according to the required bandwidth. Since the cutting tool penetrates into the parting line during the separation of the parent roll and thereby takes place an axial displacement of the separated turns, the supply rolls separated from the mother roll are not flat, but have a bowl-like curvature, due to the radial forces acting through the precompression of the sealing tapes in Connection with the mutual axial displacement of the tape turns is reinforced over time. Therefore, the separated from the mother roll supply rolls are flattened before their packaging with the aim to counteract a mutual axial displacement of the tape turns and thus to prevent a curvature of the supply roll leading edge-side widening of the sealing strip. However, this flattening of the separated from the parent roll supply rolls is an additional, the production cost increasing processing step. Document US 3,437,194 discloses a method and apparatus for packaging the rolls with a vacuum envelope. The invention is therefore based on the object to provide a method that allows the production of packaged, flattened supply rolls with a relatively small amount of work.

Ausgehend von einem Verfahren der eingangs geschilderten Art löst die Erfindung die gestellte Aufgabe dadurch, dass die Vorratsrollen jeweils in eine gasdichte Hülle aus zwei mit Ausnahme einer Einführöffnung randseitig miteinander verbundenen, zugfesten Deckfolien eingesetzt und in eine Vakuumkammer gebracht werden und dass die Einführöffnung der Hülle nach einer Evakuierung der Vakuumkammer gasdicht verschlossen wird, bevor die Vorratsrollen durch eine Belüftung der Vakuumkammer flachgedrückt werden.Starting from a method of the type described, the invention solves the problem by the fact that the supply rolls are each inserted into a gas-tight envelope of two with the exception of an insertion at the edge interconnected, tensile cover films and placed in a vacuum chamber and that the insertion of the shell after an evacuation of the vacuum chamber is sealed gas-tight, before the supply rolls are flattened by aeration of the vacuum chamber.

Zufolge dieser Maßnahmen legen sich beim Belüften der Vakuumkammer die Deckfolien an die Vorratsrolle an, die dabei in überraschender Weise flachgedrückt wird, ohne dass es zusätzlicher äußerer Kräfte bedarf. Diese Wirkung hängt wohl damit zusammen, dass aufgrund der Zugfestigkeit der Deckfolien die Deckfolie auf der konkaven Seite der Vorratsrolle kaum gegen den Kernring der Vorratsrolle eingezogen werden kann, während die Deckfolie auf der gegenüberliegenden konvexen Vorratsseite wegen ihrer gegenüber der Deckfolie auf der konkaven Seite größeren Fläche innerhalb des Außenumfangs der Vorratsrolle durch den äußeren Luftdruck in den Kernring eingezogen wird und dabei auf den Bandwickel eine Kraft ausübt, die zu einem Flachdrücken der Vorratsrolle führt. Die Vorratsrolle wird dabei nicht nur flachgedrückt, sondern aufgrund der Vakuumverpackung innerhalb der gasdichten Hülle aus den beiden Deckfolien auch in dieser flachgedrückten Lage festgehalten, sodass nach einem Öffnen der Hülle eine Vorratsrolle aus einem vorkomprimierten Dichtungsband mit bündigen Bandwindungen zur Verfügung steht.As a result of these measures, when the vacuum chamber is ventilated, the cover films attach themselves to the supply roll, which is flattened in a surprising manner, without the need for additional external forces. This effect is probably related to the fact that due to the tensile strength of the cover sheets, the cover sheet on the concave side of the supply roll can hardly be drawn against the core ring of the supply roll, while the cover sheet on the opposite convex supply side because of their opposite the cover sheet on the concave side larger area is retracted within the outer periphery of the supply roll by the outer air pressure in the core ring and thereby exerts a force on the tape roll, which leads to a flattening of the supply roll. The supply roll is not only flattened, but held in this flattened position due to the vacuum packaging within the gas-tight envelope of the two cover sheets, so that after opening the shell a supply roll from a pre-compressed sealing tape with flush tape turns is available.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen

Fig. 1
eine Vakuumkammer zur Durchführung des erfindungsgemäßen Verfahrens mit einer flachzudrückenden Vorratsrolle eines vorkomprimierten Dichtungsbands nach einem Verschweißen der Einführöffnung der Hülle in einem schematischen Längsschnitt und die
Fig. 2 und 3
die Vorratsrolle unmittelbar nach der Belüftung der Vakuumkammer und nach dem Flachdrücken durch ein Zusammenziehen der Hülle in einem Axialschnitt in einem größeren Maßstab.
In the drawing, the subject invention is shown, for example. Show it
Fig. 1
a vacuum chamber for carrying out the method according to the invention with a flat roll of a supply roll precompressed sealing strip after welding the insertion of the shell in a schematic longitudinal section and the
FIGS. 2 and 3
the supply roll immediately after the ventilation of the vacuum chamber and after the flattening by a contraction of the shell in an axial section on a larger scale.

Gemäß der Fig. 1 ist zum Flachdrücken einer Vorratsrolle 1 eine Vakuumkammer 2 vorgesehen, die eine Schweißeinrichtung 3 zum gasdichten Versiegeln einer Hülle 4 für die Vorratsrolle 1 umfasst. Diese Hülle 4 setzt sich aus zwei zugfesten Deckfolien 5, 6 zusammen, die entlang ihrer Umfangsränder mit Ausnahme einer Einführöffnung 7 für die Vorratsrolle 1 gasdicht verbunden sind. Die Vorratsrolle 1 wird von einer Mutterrolle abgetrennt, die aus einer um einen hohlen Kern unter einer Komprimierung aufgewickelten, offenporigen Schaumstoffbahn gebildet wird, wobei der komprimierte Wickel der Schaumstoffbahn durch eine Ummantelung festgehalten wird. Die offenporige Schaumstoffbahn kann vor dem Aufwickeln gegebenenfalls imprägniert werden. Bei der Abtrennung der Vorratsrolle 1 von der Mutterrolle entsprechend der Breite des herzustellenden Dichtungsbands ergibt sich eine gegenseitige axiale Verschiebung der einzelnen Windungen des komprimierten Dichtungsbands mit der Wirkung, dass die Windungen der Vorratsrolle 1 nicht in der Ebene des Kernrings 8 verlaufen, sondern aus dieser Ebene verdrängt werden, was zu einer Schüsselung der Vorratsrolle 1 führt, wie dies in den Fig. 1 und 2 übertrieben dargestellt ist.According to the Fig. 1 is for flattening a supply roll 1, a vacuum chamber 2 is provided which comprises a welding device 3 for gas-tight sealing of a shell 4 for the supply roll 1. This shell 4 is composed of two tensile cover films 5, 6, which are connected in a gastight manner along their peripheral edges with the exception of an insertion opening 7 for the supply roll 1. The supply roll 1 is separated from a master roll formed from a porous open-cell foam sheet wound around a hollow core under compression, the compressed roll of the foam sheet being held in place by a sheath. The open-cell foam sheet may optionally be impregnated prior to winding. In the separation of the supply roll 1 of the mother roll according to the width of the sealing strip to be produced results in a mutual axial displacement of the individual turns of the compressed sealing strip with the effect that the turns of the supply roll 1 does not extend in the plane of the core ring 8, but from this plane be displaced, which leads to a tipping of the supply roll 1, as shown in the Fig. 1 and 2 is exaggerated.

Um die geschüsselten Vorratsrollen 1 flachzudrücken, werden die Vorratsrollen 1 je für sich in eine Hülle 4 gesteckt, die innerhalb der Vakuumkammer 2 nach deren Evakuierung über die Schweißeinrichtung 3 gasdicht verschlossen wird, bevor die Vakuumkammer 2 wieder belüftet wird. Zur Evakuierung und Belüftung der Vakuumkammer 2 ist ein entsprechender Anschluss 9 für eine Vakuumpumpe angedeutet.In order to flatten the bowl-shaped supply rolls 1, the supply rolls 1 are each plugged into a casing 4, which is sealed in a gastight manner within the vacuum chamber 2 after its evacuation via the welding device 3, before the vacuum chamber 2 is ventilated again. For evacuation and ventilation of the vacuum chamber 2, a corresponding connection 9 for a vacuum pump is indicated.

Wie den Fig. 2 und 3 entnommen werden kann, legen sich die Deckfolien 5 und 6 gemäß der Fig. 2 bei der Belüftung der Vakuumkammer 2 an die Vorratsrolle 1 an, soweit dies die Abmessungen der Decklagen 5 und 6 der Hülle 4 erlauben. Die Zugfestigkeit der Deckfolien 5 und 6 bedingt, dass die Deckfolie 5 auf der konkaven Seite der Vorratsrolle 1 einem Einziehen in den Hohlraum des Kernrings 8 entgegensteht, sodass der äußere Luftdruck das Einziehen der Deckfolie 6 auf der konvexen Seite der Vorratsrolle 1 in den Hohlraum des Kernrings 8 bedingt, weil diese Deckfolie 6 im Vergleich zur Deckfolie 5 in Bezug auf die Vorratsrolle 1 eine radiale Überlänge aufweist. Das Vakuum innerhalb der gasdicht verschlossenen Hülle 4 bedingt im Zusammenwirken mit dem äußeren Luftdruck ein Zusammendrücken der Hülle 4 im Bereich des Hohlraums des Kernrings 8 mit der Wirkung, dass durch die Deckfolie 6 auf der konvexen Seite Kräfte auf die Vorratsrolle 1 ausgeübt werden, die zu einem Flachdrücken der Vorratsrolle 1 führen, wie dies in der Fig. 3 gezeichnet ist. Die Vorratsrolle 1 wird somit innerhalb der evakuierten Hülle 4 nicht nur flachgedrückt, sondern auch im flachgedrückten Zustand festgehalten, sodass die Hülle 4 eine vorteilhafte Verpackung für die Vorratsrolle 1 darstellt.Like that FIGS. 2 and 3 can be removed, put the cover sheets 5 and 6 according to the Fig. 2 in the ventilation of the vacuum chamber 2 to the supply roll 1, as far as the dimensions of the cover layers 5 and 6 of the shell 4 allow. The tensile strength of the cover sheets 5 and 6 requires that the cover sheet 5 on the concave side of the supply roll 1 opposes an insertion into the cavity of the core ring 8, so that the external air pressure pulling the cover sheet 6 on the convex side of the supply roll 1 in the cavity of Core ring 8 conditioned because this cover sheet 6 in comparison to the cover sheet 5 with respect to the supply roll 1 has a radial excess length. The vacuum within the gas-tightly sealed shell 4 caused in cooperation with the external air pressure compression of the shell 4 in the region of the cavity of the core ring 8 with the effect that forces are exerted on the supply roll 1 through the cover sheet 6 on the convex side, the lead a flattening of the supply roll 1, as shown in the Fig. 3 is drawn. The supply roll 1 is thus not only flattened within the evacuated shell 4, but also held in the flattened state, so that the shell 4 is an advantageous packaging for the supply roll 1.

Claims (1)

  1. Method for producing flatly-pressed supply rolls (1) of a pre-compressed sealing tape, wherein an open-pore foam web is wound under compression onto a hollow core to form a parent roll and is retained by means of a sheath before the sheathed parent roll is subdivided into individual supply rolls (1) and these supply rolls (1) are each flatly pressed in their own right, characterised in that the supply rolls (1) are each inserted into a gas-tight cover (4) consisting of two tension-proof cover films (5, 6) which, with the exception of an insertion opening (7), are connected to one another on the edge side, and said supply rolls are introduced into a vacuum chamber (2) and in that the insertion opening (7) of the cover (4) is closed in a gas-tight manner after evacuation of the vacuum chamber (2) before the supply rolls (1) are flatly pressed by means of ventilation of the vacuum chamber (2).
EP16187413.6A 2015-10-28 2016-09-06 Method for producing flat-pressed stored roles of a pre-compressed sealing tape Active EP3162746B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16187413T PL3162746T3 (en) 2015-10-28 2016-09-06 Method for producing flat-pressed stored roles of a pre-compressed sealing tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA50916/2015A AT517695B1 (en) 2015-10-28 2015-10-28 Method for producing flattened supply rolls of a pre-compressed sealing strip

Publications (2)

Publication Number Publication Date
EP3162746A1 EP3162746A1 (en) 2017-05-03
EP3162746B1 true EP3162746B1 (en) 2018-09-05

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ID=56876979

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Application Number Title Priority Date Filing Date
EP16187413.6A Active EP3162746B1 (en) 2015-10-28 2016-09-06 Method for producing flat-pressed stored roles of a pre-compressed sealing tape

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EP (1) EP3162746B1 (en)
AT (1) AT517695B1 (en)
PL (1) PL3162746T3 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437197A (en) * 1967-05-02 1969-04-08 Mobay Chemical Corp Packaging
DE1935857C3 (en) * 1969-07-15 1978-03-30 Odenwald-Chemie Gmbh, 6901 Schoenau Method for providing permanently elastic sealing tape in the form of a roll
DE2254143C3 (en) * 1972-11-04 1978-12-21 Heinz 7970 Leutkirch Maslock Process for coating objects with a deformable surface material
JPH03162223A (en) * 1989-11-10 1991-07-12 Bando Chem Ind Ltd Film roll free from residual air and its manufacture
US20090071862A2 (en) * 2003-03-04 2009-03-19 Diaperoos, Llc Indicia of reduced diaper viewable through encasement
US8132393B2 (en) * 2008-03-04 2012-03-13 Sealed Air Corporation Radial compression system for rolls of material and associated method

Also Published As

Publication number Publication date
EP3162746A1 (en) 2017-05-03
PL3162746T3 (en) 2019-02-28
AT517695A4 (en) 2017-04-15
AT517695B1 (en) 2017-04-15

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