EP1805004B1 - Dispositif permettant de comprimer au moins deux couches d'un fond plie d'un emballage multicouche et emballage multicouche - Google Patents

Dispositif permettant de comprimer au moins deux couches d'un fond plie d'un emballage multicouche et emballage multicouche Download PDF

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Publication number
EP1805004B1
EP1805004B1 EP05788535A EP05788535A EP1805004B1 EP 1805004 B1 EP1805004 B1 EP 1805004B1 EP 05788535 A EP05788535 A EP 05788535A EP 05788535 A EP05788535 A EP 05788535A EP 1805004 B1 EP1805004 B1 EP 1805004B1
Authority
EP
European Patent Office
Prior art keywords
pressing
layers
pressing elements
package
cited
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP05788535A
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German (de)
English (en)
Other versions
EP1805004A1 (fr
Inventor
Oliver Peterges
Thomas Vetten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SIG Services AG
Original Assignee
SIG Technology AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SIG Technology AG filed Critical SIG Technology AG
Publication of EP1805004A1 publication Critical patent/EP1805004A1/fr
Application granted granted Critical
Publication of EP1805004B1 publication Critical patent/EP1805004B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding

Definitions

  • the present invention relates to a device for pressing at least two layers of a folded bottom of a multilayer composite package, wherein the bottom has a thickness varying over its surface due to the folding, and wherein the surface of the device for pressing the layers presses for pressing the layers in bottom regions low strength.
  • the invention relates to a multi-layer composite package of folded, provided with at least one plastic coating cardboard.
  • the isolated and optionally prefolded packing shells are usually pushed onto mandrels of a mandrel wheel, wherein the mandrels are arranged distributed uniformly over the circumference of the mandrel wheel shaft.
  • a clockwise rotation of the mandrel wheel takes place.
  • the packing jacket is pushed in at a first station, and after a 90 ° rotation in a second station, the folding of the packing bottom takes place. After the folding of the package bottom, at least in sections, several layers of composite material are located one above the other.
  • the flat folded package bottom is then sealed in the third station by pressure forming the superimposed layers with the plastic softened at elevated temperature of the composite material to form a flat bottomed package bottom.
  • layers of the package bottom which are superposed by the folding of the bottom, are pressed together with the surface of a suitable device from the bottom outside against the adjacent inner side of the mandrel. The pressure exerted leads due to the softened by the heating plastic to a compression of the layers and a sealing of the soil.
  • the heating of the layers required for the pressing and sealing can take place, for example, before folding the bottom of the package. However, it is also conceivable that the heating of the plastic takes place after the folding of the package bottom.
  • the compression and sealing of the bottom of the package also creates a slight curvature to the inside of the bottom, which gives the package to be produced a particularly good stability.
  • the bottom of the package is cooled to harden the softened plastic in the desired shape. This can be done in the above-described sealing station, or in a separate station.
  • the finished, unilaterally open pack is withdrawn from the mandrel of the mandrel wheel and fed to the actual filling machine, where the inside of the pack is cleaned and optionally disinfected, and the filling and closing of the finished pack and the shaping of the pack head take place.
  • the folded package bottom has, after folding, a thickness varying over its surface.
  • the reason for this is that in the course of the folding in different areas of the soil differently different layers of the folded composite material are superimposed.
  • the pressing surface covers areas of different thickness, so there is the problem that different areas of the soil are pressed and sealed different degrees.
  • the layers in areas with in comparison to the adjacent areas of low strength often insufficiently compressed.
  • devices for pressing the layers of the package bottom which have in certain areas of their surface used for pressing from the surface protruding pressing elements.
  • These pressing elements are arranged on the surface of the pressing device such that they are assigned to the bottom regions when pressing the bottom, which have a low thickness compared to adjacent bottom regions.
  • the pressing elements are used to compress the layers in these areas during the pressing process sufficiently and thus to seal.
  • edged ribs It is known to form these pressing elements as edged ribs. When using these ribs, however, it can lead to injury of the bottom of the pack in practice. Leaks in the soil can be the result. The edged pressing elements also lead to increased contamination of the bottom of the package, since dirt can easily accumulate on the pressing profile produced in the bottom.
  • the floor has a greater thickness than adjacent areas. This must be taken into account in the design of the surface of the pressing device.
  • the present invention has the object, a device of the type mentioned and a To provide a multi-layer composite package of the type mentioned, wherein the risk of injury to the pack bottom, leaks and contamination of the soil is reduced compared to the prior art. In addition, longitudinal seam tolerances should be better absorbed.
  • the object is achieved according to the invention by the pressing elements are dome-shaped.
  • the object is also achieved by a multi-layer composite package of the type mentioned with a compressed with a device according to the invention pack bottom.
  • the dome-shaped press elements projecting from the surface of the device lead to a pressing and sealing of the floor in the floor area assigned to them during the pressing.
  • the pressure is introduced during the pressing over the calottes. There are thus no sharp pressure changes.
  • the packing material is gently compacted.
  • the dome-shaped pressing elements also have no edges, so that the risk of injury to the pack bottom in the course of compression compared with the prior art is significantly reduced.
  • the risk of leaks in the bottom of the package and thus in the multi-layer composite package is therefore also significantly lower.
  • the tightness of the package bottom of the multi-layer composite package is also increased by a displacement of the multi-layer material into adjacent bottom regions that occurs due to the dome-shaped press elements.
  • the flexibility in pressing is increased with the dome-shaped pressing elements in comparison to the prior art by the small distance between the pressure peaks occurring during pressing in the region of a respective dome-shaped pressing element and the existing around the pressing element pressure relief.
  • a locally more strongly compressed pressing of the layers is achieved by the respective pressing element in comparison to the prior art.
  • the dome-shaped pressing elements thus adapt more flexibly to variations in the thickness of the soil to be compacted. In this way, longitudinal seam tolerances can be better compensated than in the case of the rib-shaped pressing elements provided according to the prior art.
  • By means of a suitable arrangement of the dome-shaped pressing elements it is possible to produce a pressure distribution which is more precise and largely flexible than that of the prior art, on the bottom of the packing.
  • dome-shaped pressing elements each have the same size.
  • the production of the pressing elements is particularly easy in this way possible.
  • dome-shaped pressing elements each have different sizes in order to achieve an even greater flexibility in the pressing of the layers by an adaptation of the pressing elements.
  • the pressing elements may in particular have a different height and / or a different surface area.
  • the height By varying the height, the depth of the generated pressing profile in the ground can be varied in a particularly simple manner, while the area of action of individual pressing elements during pressing can be individually adapted by varying the surface area of the pressing elements.
  • the pressing elements may be spherical cap-shaped.
  • Kugelkalottenförmige pressing elements lead to a particularly uniform pressure distribution to the layers during pressing. Thus, a particularly uniform pressing and sealing of the layers is achieved. Dirt and damage to the bottom of the package occur even less frequently in such an embodiment. Kugelkalottenförmige pressing elements are also particularly favorable to manufacture.
  • a plurality of pressing elements arranged at a distance from each other can be provided on the surface. This refinement further increases the flexibility during pressing of the layers. By a suitable distribution of the pressing elements on the surface, a net-like pressing of the layers can be achieved, which leads to an increased density of the packing bottom in the area of action of the pressing elements compared with the prior art.
  • the Press elements offset from each other in at least two rows to be arranged.
  • the pressing elements can be arranged in at least two separate regions of the surface.
  • these regions can be regions which extend on both sides to the longitudinal seam running in the bottom and which have a low thickness compared to the region of the longitudinal seam.
  • the cardboard may additionally have an aluminum coating.
  • FIG. 1 A device V1 for pressing at least two layers of a folded bottom B1 of a multilayer composite package is shown.
  • the device V1 has a substantially cuboidal basic shape and has a rectangular surface 1 for pressing the layers.
  • the surface 1 has transverse edges 1a, 1b and longitudinal edges 1c, 1d.
  • a first bore 2 is provided in the surface 1 of the device V1 for passing a screw for screwing the device V1 with a pressing tool, not shown, for pressing the device V1 on the bottom B1.
  • the device V1 has a second bore 3 in the surface 1 for centering the device V1 with respect to the pressing tool.
  • the surface 1 of the device V1 has elongated raised portions 4a, 4b, 5 of substantially equal length and a recessed portion 6.
  • the region 5 is slightly less elevated than the regions 4a, 4b, which each have the same height.
  • the raised areas 4a, 4b, 5 extend in their longitudinal direction directly behind each other approximately centrally along the entire length of the surface 1.
  • the area 5 extends in the middle between the areas 4a, 4b, each up to the opposite transverse edges 1a, 1b of Surface 1 range.
  • the recessed area 6 adjoins the area 5 laterally and extends from this to the longitudinal edge 1c of the surface 1.
  • the surface 1 of the device V1 also has a plurality of spherical cap-shaped pressing elements 7 of the same size, which rise from the surface 1. These pressing elements 7 are formed in the sections of the surface 1 which are separated from the regions 4a and 6 as well as 4b and 6 in each case. The pressing elements 7 are each spaced apart in three parallel to each other in the longitudinal direction of the surface 1 rows and arranged offset from one another.
  • FIG. 2 2 shows a second device V2 according to the invention for pressing at least two layers of a folded bottom B1 of a multilayer composite package.
  • the device V2 has a surface 8 through which in turn runs a bore 9 for passing a screw for screwing the device V2 with a pressing tool, not shown, for pressing the device V2 on the floor B1.
  • the device V2 also has a second bore 10 in the surface 8 for centering the device V2 with respect to the pressing tool.
  • the device V2 has a ramp 8a approximately centrally and extending in the longitudinal direction of the surface 8 over its entire length, so that the surface 8 passes through the ramp 8a is divided into a higher located first section 8b and a lower located second section 8c.
  • a plurality of raised spherical cap-shaped pressing elements 11 are provided, which are in each case substantially spaced and offset from each other in three parallel to the longitudinal direction of the surface 8 extending parallel rows.
  • the rows extend both over the higher-lying section 8b and over the lower-lying section 8c and the ramp 8a of the surface 8.
  • the press elements 11 provided in the device V2 have different sizes , in particular different diameters and heights.
  • FIG. 3 is one with the in FIG. 1 1 and compressed bottom B1 of a multi-layer composite packaging not shown in a plan view of the package bottom outside shown.
  • the boundaries of regions formed by the folding of the bottom B1 in a manner known per se with a different number of layers are shown by dashed lines.
  • the number of layers in each of the areas delimited by the dashed lines is in FIG. 3 circled in the respective areas.
  • the opposite longitudinal sides of the package jacket projecting beyond a mandrel of a filling machine after the packing jacket has been pushed over are overlapped. Due to the overlapping of the longitudinal sides of the packing jacket, the folded bottom B1 has a shoulder 12 between the overlapped ones Longitudinal sides, which extends in folded longitudinal base B1 in the longitudinal direction of the bottom surface.
  • One of the longitudinal sides is interrupted longitudinally by a longitudinal seam 13. In this case, the longitudinal side provided with the longitudinal seam 13 in the region of the shoulder 12 is increased due to the folding of the bottom B1 relative to the longitudinal side without a longitudinal seam 13.
  • the longitudinal seam 13 extends in the folded bottom B1 perpendicular to the paragraph 12 to a longitudinal edge 14 of the bottom B1.
  • the bottom B1 due to the folding over the adjacent areas of the bottom B1 has a greater strength.
  • the region of the longitudinal seam 13 is in FIG. 3 hatched shown.
  • FIG. 3 shown soil B1 was with the in FIG. 1 shown device V1 pressed and sealed.
  • the bottom B1 was given a slight hollow shape, which improves the stability of the multilayer composite packing.
  • the device V1 For pressing and sealing the bottom B1 of the package, the device V1 is pressed in a manner known per se with its surface 1 against a mandrel adjacent to the bottom inside from the outside to the bottom B1.
  • the surface 1 covers part of the package bottom B1.
  • the device V1 is aligned in a manner known per se with its longitudinal edge 1c in the direction of the shoulder 12 of the bottom B1 such that the recess 6 of the device V1, the longitudinal seam 13 starting from the paragraph 12 in the Width substantially complete and partially covered in length.
  • the device V1 slightly protrudes with its longitudinal edge 1c in the direction of the Packmantell longitudinal side without longitudinal seam 13 on the paragraph 12 addition.
  • the spherical cap-shaped pressing elements 7 press on pressing on both sides of the region of the longitudinal seam 13 and adjacent to the shoulder 12 on the layers of the bottom B1.
  • the pressed bottom B1 has in the corresponding sections a dome-shaped vaulted profile 15 produced by the pressing elements 7.
  • the raised areas 4a and 4b of the device V1 press against those regions of the bottom B1 which adjoin the shoulder 12 opposite the sections of the bottom B1 provided with the dome-shaped profile 15.
  • the design of the surface 1 of the device V1 is adapted to the existing differences in the thickness and height of the folding.
  • the recessed region 6, in that it covers the longitudinal seam during pressing, is assigned to a region of the bottom B1 to be pressed which, due to the folding and the number of layers, has greater thickness than the adjacent regions.
  • the corresponding area 6 of the surface 1 is recessed in a manner sufficient for adequate compression and sealing of this area of the bottom B1.
  • the raised areas 4a, 4b, 5 are associated during pressing areas of the bottom to be pressed B1, in which due to the folding of the bottom B1 only a few layers, in particular only one or two layers, are present, so that these areas have a low thickness.
  • regions 4a, 4b, 5 of the device V1 are formed increased, sufficient compression and sealing is achieved even in these low-strength regions of the bottom B1.
  • the region of the bottom B1 to which the spherical cap-shaped pressing elements 7 are assigned during pressing has a smaller number of layers and thus a lower thickness due to the folding with respect to adjacent regions of the bottom B1, in particular with respect to the adjacent region of the longitudinal seam 13.
  • the protruding from the surface spherical cap-shaped pressing elements 7 are provided. They produce the advantages described dome-shaped vaulted profile 15 in the compressed floor B1.
  • FIG. 1 shows a bottom B2 pressed and sealed with a conventional device according to the prior art, of a multi-layer composite packaging (not shown).
  • the in FIG. 4 shown bottom B2 is in the same and known per se as the in FIG. 3 folded bottom B1 and differs from the bottom B1 only with respect to that by the pressing elements introduced profile.
  • FIG. 4 Again, the boundaries of resulting by the folding of the bottom B2 areas with a different number of layers shown in dashed lines.
  • the number of layers in each of the areas delimited by the dashed lines is in FIG. 4 also shown in circled.
  • FIG. 4 represented floor B2 points like already in FIG. 3 represented bottom B1 a paragraph 16 between the brought in the folding of the bottom in overlapping longitudinal sides of the packing jacket. Approximately in the middle, starting from the shoulder 16, a longitudinal seam 17 again runs perpendicularly. The region of the longitudinal seam 17 is in FIG. 4 hatched shown.
  • a rib-shaped profile 18 has been produced by a conventional edged rib-shaped pressing elements having device when pressing the layers of the soil.
  • the thus prepared bottom B2 and the associated device for pressing have the known disadvantages.

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  • Packages (AREA)
  • Making Paper Articles (AREA)
  • Cartons (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

L'invention concerne un dispositif (V1,V2) permettant de comprimer au moins deux couches d'un fond plié (B1) d'un emballage multicouche. Le fond (B1) présente, en raison du pliage, une épaisseur variant sur sa surface. Et la surface (1, 8) du dispositif, prévue pour la compression des couches, présente des éléments de pression (7,11) permettant la compression des couches dans des zones de fond de moindre épaisseur. L'invention vise à résoudre le problème de réduction du risque de blessures du fond d'emballage (B1) et le risque de non étanchéité et d'encrassement du fond (B1) et de mieux accueillir les tolérances de soudures longitudinales. A cet effet, les éléments de pression (7,11) ont la forme d'une calotte. L'invention concerne également un emballage composite multicouche réalisé dans un carton plié et doté d'au moins une revêtement plastique.

Claims (10)

  1. Dispositif pour la compression d'au moins deux couches d'un fond plié (B1) d'un emballage composite multicouche, le fond (B1) présentant, en raison du pliage, une épaisseur qui varie sur sa surface, et la surface (1, 8) du dispositif V1, V2), prévue pour la compression des couches, présentant des éléments de compression (7, 11) pour la compression des couches dans les régions de faible épaisseur du fond, caractérisé en ce que les éléments de compression (7, 11) sont en forme de calottes.
  2. Dispositif selon la revendication 1, caractérisé en ce que les éléments de compression en forme de calottes (7, 11) sont de même taille
  3. Dispositif selon la revendication 1, caractérisé en ce que les éléments de compression (7, 11) sont de taille différente.
  4. Dispositif selon la revendication 3, caractérisé en ce que les éléments de compression (7, 11) présentent une hauteur différente et / ou une étendue superficielle différente.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les éléments de compression (7, 11) sont en forme de calottes sphériques.
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que, sur la surface (1, 8) sont prévus plusieurs éléments de compression (7, 11) qui sont disposés à distance les uns des autres.
  7. Dispositif selon la revendication 6, caractérisé en ce que les éléments de compression (7, 11) sont disposés au moins en deux rangées, en étant décalés les uns par rapport aux autres.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les éléments de compression (7, 11) sont disposés dans au moins deux régions de la surface (1, 8) séparées l'une de l'autre.
  9. Emballage en matériau composite multicouche en carton plié, pourvu d'au moins un revêtement en matière synthétique, avec un fond d'emballage (B1) compressé au moyen d'un dispositif (V1, V2) selon l'une des revendications 1 à 8, caractérisé en ce que le fond d'emballage, dans les régions qui présentent une plus faible épaisseur en comparaison avec les régions du fond adjacentes, présentent un profil en creux, en forme de calotte.
  10. Dispositif selon la revendication 9, caractérisé en ce que le matériau composite multicouche présente en plus un revêtement en aluminium.
EP05788535A 2004-10-08 2005-09-28 Dispositif permettant de comprimer au moins deux couches d'un fond plie d'un emballage multicouche et emballage multicouche Ceased EP1805004B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004049366A DE102004049366B3 (de) 2004-10-08 2004-10-08 Vorrichtung zum Verpressen von mindestens zwei Lagen eines gefalteten Bodens einer Mehrschichtverbundpackung und eine Mehrschichtverbundpackung
PCT/EP2005/010462 WO2006040010A1 (fr) 2004-10-08 2005-09-28 Dispositif permettant de comprimer au moins deux couches d'un fond plie d'un emballage multicouche et emballage multicouche

Publications (2)

Publication Number Publication Date
EP1805004A1 EP1805004A1 (fr) 2007-07-11
EP1805004B1 true EP1805004B1 (fr) 2008-03-05

Family

ID=35140281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05788535A Ceased EP1805004B1 (fr) 2004-10-08 2005-09-28 Dispositif permettant de comprimer au moins deux couches d'un fond plie d'un emballage multicouche et emballage multicouche

Country Status (4)

Country Link
EP (1) EP1805004B1 (fr)
DE (2) DE102004049366B3 (fr)
TW (1) TWI349611B (fr)
WO (1) WO2006040010A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006045338B4 (de) * 2006-09-22 2008-08-21 Sig Technology Ag Vorrichtung zum Versiegeln von mindestens zwei Lagen eines aufeinander gefalteten Giebels einer eine Längsnaht aufweisenden Mehrschichtverbundpackung und eine damit gebildete Mehrschichtverbundpackung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422730A (en) * 1966-12-07 1969-01-21 Int Paper Co Container fabricating apparatus
FR2526756B1 (fr) * 1982-05-17 1986-01-10 Elopak France Procede pour rendre etanches des emballages constitues par un complexe stratifie
US5482204A (en) * 1994-03-21 1996-01-09 International Paper Company Carton bottom sealer
US5743997A (en) * 1996-03-29 1998-04-28 Elopak Systems Ag Sheet material sealing arrangement
US6739499B1 (en) * 1997-06-11 2004-05-25 Nimco Corporation Method and apparatus for forming a stable container bottom
US6260333B1 (en) * 1999-10-19 2001-07-17 Sharon Manufacturing Co., Inc. Pressure pad for a container bottom sealing device
US6315705B1 (en) * 1999-10-20 2001-11-13 International Paper Company Pressure pad having sculpted quadrantal regions

Also Published As

Publication number Publication date
EP1805004A1 (fr) 2007-07-11
DE502005003143D1 (de) 2008-04-17
DE102004049366B3 (de) 2005-11-10
TW200616845A (en) 2006-06-01
WO2006040010A1 (fr) 2006-04-20
TWI349611B (en) 2011-10-01

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