EP1905574B1 - Dispositif et procédé destinés à la fabrication de corps de remplissage replis de gaz - Google Patents

Dispositif et procédé destinés à la fabrication de corps de remplissage replis de gaz Download PDF

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Publication number
EP1905574B1
EP1905574B1 EP07113747A EP07113747A EP1905574B1 EP 1905574 B1 EP1905574 B1 EP 1905574B1 EP 07113747 A EP07113747 A EP 07113747A EP 07113747 A EP07113747 A EP 07113747A EP 1905574 B1 EP1905574 B1 EP 1905574B1
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EP
European Patent Office
Prior art keywords
tube
film
film half
gas filling
filling device
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.)
Active
Application number
EP07113747A
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German (de)
English (en)
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EP1905574A1 (fr
Inventor
Johannes LÖRSCH
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Individual
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Individual
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Priority to US11/861,713 priority Critical patent/US7698874B2/en
Publication of EP1905574A1 publication Critical patent/EP1905574A1/fr
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Publication of EP1905574B1 publication Critical patent/EP1905574B1/fr
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31DMAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0073Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including pillow forming
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31DMAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00Multiple-step processes for making three-dimensional articles
    • B31D2205/0005Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0052Perforating; Forming lines of weakness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31DMAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00Multiple-step processes for making three-dimensional articles
    • B31D2205/0005Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0058Cutting; Individualising the final products

Definitions

  • the present invention relates to a device for producing gas-filled packing according to the preamble of claim 1. Furthermore, the invention relates to a method for producing gas-filled packing according to the preamble of claim 10.
  • Such gas-filled - usually air-filled - filler are nowadays increasingly used as a filler, especially for the shipment of sensitive goods.
  • the gas-filled packings can be made in the place where they are needed from a provided on a roll half-tube by "blowing" the film in a special device, whereby the volume of the packing compared to the original Volume of the film roll increased by a multiple (typically at least a factor of 10). After use, the air from the packing can be easily let out again, so that the waste volume is reduced, with recycling of the films is of course readily possible.
  • the present invention has for its object to improve a generic device or a corresponding method to the effect that the drive with a constant quality and speed of the filler produced is structurally significantly simplified, which in turn leads to the saving of manufacturing and maintenance costs.
  • One aspect of the present invention is to simplify the drive for the transport of the film half-hoses in that it takes place in the transport direction only behind the gas filling device and behind the place of use of the welding tool. Therefore, no conveyor belts od. Like. As required in the generic state of the art, and the drive mechanism can be greatly simplified and operated with lower drive power.
  • air can escape from the pockets which have just been filled and not yet welded in the region of the gas filling device and behind it.
  • this can be counteracted by applying a certain tensile stress to the film half-tube by automatically braking the supply roll for the film material, as proposed in a preferred embodiment of the invention.
  • upper and lower film are applied to the gas filling device, which reduces the air losses.
  • escape of the blown-in air can be avoided by connecting the welding process as directly as possible to the injection of air, so that certain residual leaks have no appreciable effect on the degree of filling of the filling bodies.
  • the latter measure can be realized in a preferred embodiment of the invention by means of two along its circumference a contact region exhibiting drive rollers particularly advantageous by the two rollers are arranged offset in the horizontal direction.
  • an upper drive roller is offset in the transport direction of the film half tube relative to the lower roller to the rear, wherein the lower roller spatially connects directly to the gas filling device.
  • Such angular guidance prevents the film from migrating out of the transport direction due to the distortions that arise during the inflation process, or it may cause wrinkles between the upper and lower films which make the welding process more difficult.
  • the first, lower roller forms the counter bearing for the welding tool.
  • the welding tool can be arranged directly adjacent to the gas filling device, so that leakages before the welding process are minimized. Due to the moving roller as welding abutment also an excellent weld quality is achieved.
  • the escape of air after filling and before the welding process can be further reduced by the fact that the air is injected through the gas filling device obliquely with a component in the direction of movement.
  • FIG. 1a is a generally designated 10 device according to the invention for producing gas-filled packing in a partial side view is shown schematically.
  • the figure shows the essential elements for air filling, welding and transport of the (in FIG. 1a not shown) Foliencherschlauchs.
  • the per se known film half-tube 40 may, for example, according to the FIGS. 3 and 4 be educated. According to these illustrations, the film has 40 pairs of transverse welds 42, between each of which a perforation 44 is provided. The transverse welds 42 terminate at a predetermined distance from the open end of the half tube. Punches 46 in the space between the transverse welds 42 serve to control the device, in particular to detect the position of the welds or to control the film welding process depending on the film material or the film materials in multilayer films or the film thickness.
  • the film half tube is made from two layers coextruded, e.g. an outer layer of more thermally stable plastic (e.g., a melting temperature of about 120 to 130 ° C) over a more easily fusible, thinner inner layer (melting point, e.g., about 85 ° C), thereby greatly improving the welding properties.
  • an outer layer of more thermally stable plastic e.g., a melting temperature of about 120 to 130 ° C
  • a more easily fusible, thinner inner layer melting point, e.g., about 85 ° C
  • the foil is covered by an in FIG. 2 supplied supply roll 54 which is rotatably locked relative to a roller holder 52.
  • the rotation of the roll holder 54 is decelerated by a brake, the strength of which is automatically controlled via a driver arm 50, via which the film is guided in a loop (not shown).
  • a brake the strength of which is automatically controlled via a driver arm 50, via which the film is guided in a loop (not shown).
  • the film enters the device 10 according to FIG. 1a from the left and is first passed over a free-running guide roller 22 (see, the feed direction marked with an arrow) and then enters an inlet slot formed by guide plates 32 of the device 10, which initially runs substantially horizontally.
  • the inlet slot 32 has (as well as an outlet slot 30) a depth of only a few centimeters, so that only the edge region of the film tube is guided therein.
  • the remaining area of the film tube typically width about 20 cm
  • a shallow gas filling device 16 then engages between the upper and lower film initially not connected to one another at the edge, by means of which upper and lower film are lifted off from one another at both ends and brought together again at the other end.
  • an air duct which is supplied by a behind a base plate 26 arranged (not visible) fan with air.
  • This air duct extends obliquely or is designed such that the outflowing air receives not only a component of movement transverse to the plane, but also a component in the direction of movement of the film, the latter indicated by the arrow 24.
  • air losses in the area of the welding tool are additionally compensated.
  • the transport of the film by means of two synchronously driven rollers 12 and 14, which are provided with a rubber coating.
  • the electromotive drive of the rollers 12, 14 is also located behind the base plate 26 (not visible).
  • a first, from below to the foil fitting roller 12 is relatively close adjacent arranged on the gas filling device.
  • This first roller 12 serves at the same time as an abutment for a welding tool 18, which is pressed from the top side onto the film and has a relatively relatively small welding punch, which produces a weld seam of typically about 2 to 3 mm width.
  • the welding tool 18 is attached to a lever arm 20 (whose bearing 48 in FIG. 1b is shown in the operating position, the welding tool 18 spring-biased against the film, is lifted in a standby state at standstill, however, from the film to avoid a melting of the film, wherein the pivoting of the lever arm 20 is manually via an eccentric, the over a switch simultaneously activates the film drive.
  • the welding tool 18 is heated electrically via a heating cartridge and held by an electronic control within a predetermined temperature range.
  • a second roller 14 is provided, which rests in a contact region 28 against the first roller. Due to the staggered arrangement of the second roller 14, the film is first guided along a partial region of the circumference of the first roller 12 and then at an angle ⁇ relative to the horizontal obliquely downward, this direction by an appropriate design of guide plates to an outlet slot 30th is maintained until the output of the filled filler.
  • the contact area 28 between the rollers 12 and 14 is thus lower than the original film transport plane.
  • the welding tool can use the first roller 12 as an abutment.
  • the welding tool can be arranged relatively close to the gas filling device 16 be minimized so that the air losses are minimized by leaks, the air losses are additionally reduced by the oblique blowing.
  • FIG. 1b a device 10 according to the invention is shown in a sectional view with sectional plane in the transport plane of the film, wherein the in FIG. 1b illustrated embodiment only in principle, but not in terms of their dimensions with FIG. 1a matches.
  • the location of the film 40 is in Figure 1 b indicated by dashed lines.
  • the contact surface of the welding tool 18 on the roller 12 is denoted by 17.
  • FIG. 1b a possible shape of the air duct 13 can be seen, in which a bevel 15 directs an air flow with a flow component in the direction of the weld 17. This design ensures that the air duct 13 extends into the region of the circumference of the first roller 12.

Landscapes

  • Containers And Plastic Fillers For Packaging (AREA)

Claims (10)

  1. Dispositif (10) pour la fabrication de corps de remplissage remplis de gaz, dans lequel un demi-tuyau en feuille (40) préconfectionné en matière synthétique, au moins partiellement ouvert sur un bord latéral et stocké sur une bobine (34), qui est divisé en poches individuelles au moyen de soudures (42) transversales à la direction de transport, est d'abord conduit à un dispositif de remplissage de gaz (16), au moyen duquel de l'air est insufflé dans le demi-tuyau en feuille et ensuite à un outil de soudage (18), qui soude l'ouverture latérale du demi-tuyau en feuille pour former des corps de remplissage fermés, dans lequel le transport du demi-tuyau en feuille à travers le dispositif est effectué au moyen d'un dispositif d'entraînement, caractérisé en ce que le dispositif d'entraînement (12, 14) est réalisé de telle manière que celui-ci exerce une force sur le demi-tuyau en feuille (40) essentiellement - par rapport à la direction de transport - après le dispositif de remplissage de gaz (16) ainsi qu'après le lieu d'utilisation de l'outil de soudage (18).
  2. Dispositif selon la revendication 1,
    caractérisé en ce qu'il n'est prévu, dans la région du dispositif de remplissage de gaz (16), aucune courroie ou autres éléments de transport accompagnant le demi-tuyau en feuille (40), et en ce que le dispositif d'entraînement opérant après le dispositif de remplissage de gaz (16) constitue le seul dispositif qui exerce une force sur le demi-tuyau en feuille.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le dispositif d'entraînement comprend deux rouleaux (12, 14) entraînés par des moteurs électriques, pourvus d'une garniture de friction et situés l'un contre l'autre dans une zone périphérique, entre lesquels une zone de bord du demi-tuyau en feuille (40) est guidée et tirée par le dispositif (10) lors d'une utilisation correcte.
  4. Dispositif selon la revendication 3,
    caractérisé en ce qu'il est réalisé de telle manière que le transport de la feuille soit effectué dans un plan essentiellement horizontal dans la région du dispositif de remplissage de gaz (16), et en ce qu'un des rouleaux (12) est réalisé en forme de rouleau d'appui pour l'appareil de soudage (18), dans lequel les axes de rotation des rouleaux (12, 14) sont disposés avec un décalage horizontal l'un par rapport à l'autre.
  5. Dispositif selon la revendication 4,
    caractérisé en ce que, lors d'une utilisation correcte du dispositif, un premier rouleau (12) est appliqué contre la face inférieure du demi-tuyau en feuille (40) immédiatement après la région du dispositif de remplissage de gaz (16) dans la direction de transport et, décalé horizontalement vers l'arrière dans la direction de transport, un deuxième rouleau (14) est appliqué contre la face supérieure du demi-tuyau en feuille (40) et contre le premier rouleau (12), de telle manière que le demi-tuyau en feuille soit guidé dans une direction coudée vers le bas sous un angle (α) de moins de 90°, de préférence de 20° à 45°, par rapport à un prolongement imaginaire de la direction de transport essentiellement horizontale, et en ce que l'outil de soudage (18) est appliqué contre la face supérieure de la région de bord du demi-tuyau en feuille adjacente à la région du dispositif de remplissage de gaz (16), dans lequel le premier rouleau (12) fait office de rouleau d'appui pour l'outil de soudage (18).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que l'outil de soudage (18) et l'axe de rotation du premier rouleau (12) se trouvent à peu près verticalement l'un au-dessus de l'autre.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif de remplissage de gaz (16) est réalisé en forme de canal plat (13), dans lequel de l'air est insufflé au moyen d'un ventilateur, et qui se rétrécit vers les deux côtés dans la direction de transport, de telle manière que la feuille supérieure et la feuille inférieure du demi-tuyau en feuille (40) soient d'abord soulevées l'une de l'autre et soient ensuite de nouveau guidées ensemble,
    et/ou
    en ce que l'air est soufflé en oblique hors du dispositif de remplissage de gaz (16), de telle manière que le flux d'air présente, en plus d'une composante de mouvement transversale à la direction de transport, une composante de mouvement (24) dans la direction de transport du demi-tuyau en feuille (40).
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le déroulement du demi-tuyau en feuille (40) à partir de la bobine de réserve (34) est freiné de telle manière que celui-ci reste tendu entre la bobine de réserve (34) et l'entraînement (12, 14).
  9. Procédé de fabrication de corps de remplissage remplis de gaz, dans lequel un demi-tuyau en feuille (40) préconfectionné en matière synthétique, au moins partiellement ouvert sur un bord latéral, qui est divisé en poches individuelles au moyen de soudures (42) transversales à la direction de transport, est d'abord déroulé d'une bobine de réserve (34) et guidé en continu le long d'un dispositif de remplissage de gaz (16), au moyen duquel de l'air est insufflé dans le demi-tuyau en feuille, et est ensuite conduit devant un outil de soudage (18), qui soude de façon étanche à l'air l'ouverture latérale du demi-tuyau en feuille, caractérisé en ce que le transport du demi-tuyau en feuille est effectué au moyen d'une force appliquée au demi-tuyau en feuille (40) après le dispositif de remplissage de gaz (16) ainsi qu'après le lieu d'utilisation de l'outil de soudage (18) dans la direction de transport.
  10. Procédé selon la revendication 9, caractérisé en ce qu'une étanchéité du bord ouvert du demi-tuyau en feuille (40) par rapport à l'ambiance est réalisée pendant l'opération de remplissage de gaz du fait que le tuyau en feuille est soumis à une contrainte de traction agissant dans la direction de transport entre la bobine de réserve (34) et le dispositif d'entraînement (12, 14), de telle manière que la feuille supérieure et la feuille inférieure s'adaptent au dispositif de remplissage de gaz (16).
EP07113747A 2006-09-26 2007-08-02 Dispositif et procédé destinés à la fabrication de corps de remplissage replis de gaz Active EP1905574B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/861,713 US7698874B2 (en) 2006-09-26 2007-09-26 Apparatus and method for making gas-filled filling bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006045793 2006-09-26

Publications (2)

Publication Number Publication Date
EP1905574A1 EP1905574A1 (fr) 2008-04-02
EP1905574B1 true EP1905574B1 (fr) 2009-07-22

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US (1) US7698874B2 (fr)
EP (1) EP1905574B1 (fr)
DE (1) DE502007001103D1 (fr)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995012532A1 (fr) * 1993-11-05 1995-05-11 Shinwa Corporation Gonfleur pour enveloppe a gaz a compartiments a gaz independants successifs
US5660662A (en) * 1995-04-25 1997-08-26 Testone Enterprises, Inc. Method and apparatus for forming filled cushions, and filled cushions
US5942076A (en) * 1997-03-13 1999-08-24 Sealed Air Corporation Inflatable cushion forming machine
US7536837B2 (en) * 1999-03-09 2009-05-26 Free-Flow Packaging International, Inc. Apparatus for inflating and sealing pillows in packaging cushions
US6423166B1 (en) * 1999-04-22 2002-07-23 Ebrahim Simhaee Method of making collapsed air cell dunnage suitable for inflation
ATE289956T1 (de) * 2000-09-27 2005-03-15 Johannes Loersch Gasgefüllte füllkörper
US6651406B2 (en) * 2001-02-13 2003-11-25 Sealed Air Corporation (Us) Apparatus and method for forming inflated containers
US6598373B2 (en) * 2001-02-13 2003-07-29 Sealed Air Corporation (Us) Apparatus and method for forming inflated containers
US7174696B2 (en) * 2002-03-01 2007-02-13 Free-Flow Packaging International, Inc. Machine and method for inflating and sealing air-filled packing cushions
DE20315643U1 (de) 2003-10-08 2005-02-17 LÖRSCH, Johannes Vorrichtung zur Herstellung gasgefüllter Füllkörper sowie Kunststofffolie zur Verwendung in dieser Vorrichtung
US7897219B2 (en) * 2004-06-01 2011-03-01 Automated Packaging Systems, Inc. Web and method for making fluid filled units
US7040073B2 (en) * 2004-08-30 2006-05-09 Free-Flow Packaging International Machine for inflating and sealing air-filled cushioning materials
US8020358B2 (en) * 2004-11-02 2011-09-20 Sealed Air Corporation (Us) Apparatus and method for forming inflated containers
US20060218879A1 (en) * 2005-03-31 2006-10-05 Sealed Air Corporation (Us) Apparatus for forming inflated packaging cushions
US7225599B2 (en) * 2005-04-05 2007-06-05 Sealed Air Corporation Apparatus and method for forming inflated articles

Also Published As

Publication number Publication date
DE502007001103D1 (de) 2009-09-03
US7698874B2 (en) 2010-04-20
EP1905574A1 (fr) 2008-04-02
US20080222998A1 (en) 2008-09-18

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