EP1040911B1 - Verfahren und vorrichtung zum herstellen von behältern aus einer vielzahl von streifen und behälter - Google Patents

Verfahren und vorrichtung zum herstellen von behältern aus einer vielzahl von streifen und behälter Download PDF

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Publication number
EP1040911B1
EP1040911B1 EP98959915A EP98959915A EP1040911B1 EP 1040911 B1 EP1040911 B1 EP 1040911B1 EP 98959915 A EP98959915 A EP 98959915A EP 98959915 A EP98959915 A EP 98959915A EP 1040911 B1 EP1040911 B1 EP 1040911B1
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EP
European Patent Office
Prior art keywords
strips
strip
die
rolls
stations
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.)
Expired - Lifetime
Application number
EP98959915A
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English (en)
French (fr)
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EP1040911A2 (de
Inventor
Jaume Teixidor Casanovas
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.)
2t-Pack SL
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2t-Pack SL
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Publication date
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Publication of EP1040911A2 publication Critical patent/EP1040911A2/de
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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
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/142—Cutting, e.g. perforating, punching, slitting or trimming using presses or dies
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • 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
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies

Definitions

  • the present invention relates to a process for the manufacturing of containers, to a machine for manufacturing the same and to a container obtained with this process, said containers being formed from a plurality of strips superposed and joined together and being especially suitable for containing foods.
  • These containers are formed by a plurality of layers of sheet material, the number and the material of the layers depending upon the type of foods to be contained.
  • the layers are normally of cardboard or expanded polystyrene, also including a layer of laminated material suitable for being in contact with foods.
  • the containers can include an additional layer of absorbent material placed beneath the layer of material suitable for being in contact with foods.
  • Cardboard containers have the disadvantage of not being very strong and not retaining their shape, that is, they deform and do not recover their original shape. This is due to the fact that during the pressing stage to shape the container according to a predetermined design folds are formed at the pressed zones, and these folds can deform if pressure is applied on same.
  • the manufacturing processes for this type of container usually include the stages of:
  • Another disadvantage is the power needed for the punching head of the pressing station, since a number of layers have to be pressed together. Furthermore, the tolerance between the punching heads and the dies of the pressing station has to be quite large, since a plurality of layers of a certain thickness has to be pressed all together.
  • US-A-2 116 362 discloses an apparatus for making cartons comprising an endless carrier having a step by step movement; a series of formers mounted on said carrier; means for feeding to each former a sheet of relatively thin flexible material; a series of means for folding the sheet about the respective former to provide a bag having its outer end closed and inner end open; means for advancing in step by step manner a continuous strip of carton body blanks; means for periodically severing a body blank from such strip, each carton body including a bottom panel and a side panel on opposite sides of the bottom panel and tabs projecting from the ends of such panels; a series of means for folding a carton body blank over the folded bag disposed on one side of said formers; means for feeding in limited relation to the movement of said carrier a continuous strip of end panels to the carrier in the path of movement of the formers; means for severing an end panel from each strip; and means for securing a severed end panel to the tabs on opposite ends of the folded carton body blank.
  • US-A-2 776 608 discloses a method of making containers having a plurality of layers of material which comprises assembling a plurality of sheets of material, initially applying heat to a limited area and thereby adhering the sheets to each other to form a composite blank, simultaneously folding all the sheets of the blank into a tubular body portion in which the layers are superimposed, folding the elements at one end of the blank to close one end of the body portion, adhesively securing at least a portion of said end elements to retain the elements and container body portion in folded position, and subsequently securing said side seam, and welding the sheets of material to each other by applying heat throughout the entire area of said body portion to form a smooth, strong, multiple-layered container.
  • the present invention relates to a process for the manufacture of containers, characterized in that it comprises the stages of:
  • containers are formed with the number of strips desired, thus achieving a suitable thickness, without limitation.
  • a container of considerable strength is thus achieved, forming folds of very small dimensions, with high shape-retention, that is, if the container deforms it returns to its original shape.
  • the pressing stage can be carried out using cold or hot process, achieving very high manufacturing speeds compared with the known processes.
  • the process of the invention also includes an additional stage of cutting away the edges of the container after pressing and joining together all the strips.
  • the container is made by taking up strips from at least three rolls of sheet materials, the first sheet material being suitable for being in contact with foods and, when all the strips have been pressed and joined together, the one left on the internal part of the container.
  • At least one of said rolls is cardboard, the strip(s) which are die-cut from the roll(s) of cardboard being fitted between the first strip of material suitable for being in contact with foods and the strip applied on the outermost part when all the strips have been pressed and joined together.
  • some slots or orifices can be made in the first strip of material suitable for being in contact with foods.
  • a zone of the cardboard strip(s) corresponding to the slots or orifices of the first strip is treated for absorption at predetermined zones of the juices produced by the product to be packaged.
  • treatment of the cardboard strip(s) is carried out by spraying a material suitable for preventing porosity at certain zones of said strip(s).
  • the strips are cut out in advance and marks made for carrying out the subsequent pressing on each of the strips.
  • At least one of said strips is of dimensions different from the other strips.
  • a reinforcement or absorbent strip of smaller dimensions can thus be included between the other strips.
  • the present invention also relates to a machine for manufacturing containers, as is claimed in claim 11.
  • the machine of the invention also includes a cutting station at which the edges of the already-shaped container are cut after all the strips have been joined together.
  • the machine can also include at least one additional station for treating a zone of at least one of said strips.
  • the rolls of sheet material are positioned one beside the other, with the roll corresponding to the innermost strip of the already-formed container placed at one end and the roll corresponding to the outermost strip of the already-formed container at the other end.
  • the dies of the pressing stations are positioned one beside the other facing the outlet of sheet material from the rolls.
  • the present invention also relates to a container manufactured according to the foregoing process and with the machine described.
  • the machine comprises:
  • this machine is designed for the manufacturing of containers of four layers of sheet material, though containers of more or fewer layers can be manufactured by adding or removing the corresponding stations.
  • the innermost strip of the formed container is of a material suitable for being in contact with foods and can be printed on if wished.
  • This strip can be made of a heat-fusible and impermeable material, depending on requirements.
  • the outermost sheet of the formed container can be made of any suitable material, such as paper or others, and can be printed on.
  • the intermediate strip or strips, two in the case of the container manufactured with the machine shown in the drawings, are preferably of cardboard.
  • the rolls of sheet material 1a, 1b, 1c, 1d are first placed in position in such a way that they feed said material to the stations described. Any suitable means can be used as driving means of said rolls for feeding of material.
  • the machine of the invention will be synchronised in such a way that, when it comes into operation, the material is fed first from the first roll 1a, the roll on the left of the machine shown.
  • the sheet material will pass first through the gluing station 2, where one section of the material will be glued.
  • the glue used will be heat-fusible, being allowed to cool before pressing.
  • the sheet material is then die-cut and marked according to a predetermined design, with marks made for subsequent pressing thereof.
  • the strip is then pressed, by either cold or hot process. If carried out by hot process, the temperature reached will not be very high, but only sufficient to heat the glue on the strip. The part of the pressing station which will be heated will always be the die, while the punching head 5 will remain cold.
  • This already-pressed strip will pass on to the next pressing station 4 by means of the conveyer belt 6, on which a second strip will be incorporated onto said first strip when it is pressed. Said second strip had passed through the same processes as the first strip.
  • This process for incorporating a strip will be carried out successively until the entire container has been formed.
  • the machine of the invention will be synchronised in such a way that container manufacturing is carried out continuously.
  • An additional operation of spraying onto a zone of the sheet material can be carried out on the intermediate sheet materials. This spraying is carried out in order to treat some zones, thereby preventing porosity at some zones of the strip or strips.
  • one of the strips making up the container can be of dimensions different from those of the other layers.
  • a reinforcement strip of smaller dimensions can be included between the other strips.
  • At least one of the rolls can be positioned to feed material in a different direction from the rest of the rolls, thereby allowing the fibres of the sheet material from this roll to cross over the fibres of the other sheet materials.
  • the container is thus provided with greater shape stability, preventing deformations.

Landscapes

  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Claims (16)

  1. Verfahren zur Herstellung von Behältern, wobei die Behälter aus zahlreichen überlagerten und miteinander verbundenen Streifen gebildet und durch Kleben, Abstanzen und Pressen der Streifen erstellt sind, gekennzeichnet durch folgende Verfahrensschritte:
    Kleben der Streifen von Rollen aus blattförmigem Material (1a, 1b, 1c, 1d);
    Abstanzen der zahlreichen Streifen; und
    Pressen und Verbinden der Streifen zur einzelnen Erstellung des Behälters gemäß einer vorbestimmten Gestaltung, wobei jedem Streifen die anderen Streifen, wenn sie gepresst sind, nacheinander und individuell zu einem ersten bereits gepressten Streifen zugefügt werden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass es einen zusätzlichen Schritt des Wegschneidens der Ränder des Behälters nach dem Pressen und Verbinden aller Streifen aufweist.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Abstanzen durch Aufnehmen der Streifen von wenigstens drei Rollen von blattförmigem Material (1a, 1b, 1c, 1d) durchgeführt wird, wobei das erste blattförmige Material (1d) das für den Kontakt mit Nahrungsmitteln geeignet ist und dann, wenn alle Streifen gepresst und miteinander verbunden sind, auf dem inneren Abschnitt des Behälters verbleibt.
  4. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens einer der Rollen Pappe (1b, 1c) hält, wobei der bzw. die Streifen, die von der bzw. den Papprollen abgestanzt werden, zwischen dem ersten Streifen aus einem Material, das für den Kontakt mit Nahrungsmittel (1d) geeignet ist, und dem Streifen befestigt ist, der auf dem äußersten Abschnitt aufgebracht ist, wenn alle Streifen gepresst und miteinander verbunden sind.
  5. Verfahren nach Anspruch 1 und 3, dadurch gekennzeichnet, dass bei dem Abstanzschritt einige Schlitze oder Öffnungen in dem ersten Streifen aus Material hergestellt werden, das für den Kontakt mit Lebensmitteln (1d) geeignet ist.
  6. Verfahren nach Anspruch 4 und 5, dadurch gekennzeichnet, dass es einen zusätzlichen Schritt des Behandelns eines Bereichs des Pappstreifens oder der Pappstreifen (1b, 1c) aufweist, der den Schlitzen oder Öffnungen des ersten Streifens entspricht.
  7. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass während des Verfahrensschritts des Pressens und Verbindens der Streifen letztere mittels Unterdruckabsorption gesichert werden.
  8. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Behandlung des bzw. der Pappstreifen durch Drehen eines Materials durchgeführt wird, dass geeignet ist, Porosität in bestimmten Bereichen des bzw. der Streifen zu verhindern.
  9. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass bei dem Abstanzschritt die Streifen zuvor ausgestanzt und Markierungen zum Durchführen der nachfolgenden Pressungen auf jeden der Streifen hergestellt werden.
  10. Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens einer der Streifen Abmessungen aufweist, die unterschiedlich von den anderen Streifen sind.
  11. Maschine zur Herstellung von Behältern nach dem Verfahren gemäß Anspruch 1, mit einer Zahl von Klebestationen (2), einer Zahl von Abstandsstationen, die zahlreiche Streifen abstanzen, einer Zahl von Pressstationen (4), die durch zahlreiche Stanzköpfe und -formen gebildet sind, und mit einer Übertragungseinrichtung (6) für die Streifen von einer Station weiter zu den anderen, dadurch gekennzeichnet, dass
    die Zahl von Klebestationen (2) mit der Zahl von Rollen aus blattförmigem Material (1a, 1b, 1c, 1d) übereinstimmt oder um eine Einheit geringer ist als die Zahl der Rollen (3);
    dass die Zahl der Abstanzstationen (3) zahlreiche Streifen, die von derselben Zahl von Rollen aus blattförmigem Material (1a, 1b, 1c, 1d) stammen, abstanzt, wobei die Zahl dieser Abstanzstationen (3) mit der Zahl der Rollen von dem blattförmigem Material zusammenfällt;
    dass die Zahl der Pressstationen (4) mit der Zahl der Rollen mit blattförmigem Material (1a, 1b, 1c, 1d) zusammenfällt, wobei diese Pressstation (4) das Verbinden aller Streifen durchführen; und
    dass die Transfereinrichtung (6) einen ersten Streifen nacheinander durch alle Pressstationen (4) verfährt, wobei individuell ein Streifen an jeder der Stationen an dem ersten Streifen angefügt wird, bis die endgültige Erstellung des Behälters erreicht worden ist.
  12. Maschine nach Anspruch 11, dadurch gekennzeichnet, dass sie weiterhin eine Schneidstation (7) aufweist, an der die Ränder der bereits geformten Behälter geschnitten werden, nachdem die Streifen miteinander verbunden worden sind.
  13. Maschine nach Anspruch 11, dadurch gekennzeichnet, dass sie wenigstens eine zusätzliche Station (8) zur Behandlung eines Bereichs von wenigstens einer der Streifen aufweist.
  14. Maschine nach Anspruch 11, dadurch gekennzeichnet, dass die Rollen von blattförmigem Material (1a, 1b, 1c, 1d) nebeneinander angeordnet sind, wobei die dem innersten Streifen (1d) des bereits geformten Behälters entsprechende Rolle an einem Ende und die dem äußersten Streifen (1a) des bereits geformten Behälters entsprechende Rolle an dem anderen Ende angeordnet sind.
  15. Maschine nach Anspruch 11, dadurch gekennzeichnet, dass die Formen der Pressstation (4) nebeneinander angeordnet sind, wobei sie auf den Auslass des blattförmigen Materials von den Rollen (1a, 1b, 1c, 1d) weisen.
  16. Maschine nach einem der Ansprüche 11 bis 15, dadurch gekennzeichnet, dass wenigstens eine der Rollen in einer unterschiedlichen Richtung gegenüber dem Rest der Rollen orientiert ist.
EP98959915A 1997-12-16 1998-12-15 Verfahren und vorrichtung zum herstellen von behältern aus einer vielzahl von streifen und behälter Expired - Lifetime EP1040911B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES9702710 1997-12-16
ES009702710A ES2149671B1 (es) 1997-12-16 1997-12-16 Procedimiento para la fabricacion de envases, maquina para su fabricacion y envase obtenido con dicho procedimiento.
PCT/ES1998/000342 WO1999030897A2 (es) 1997-12-16 1998-12-15 Procedimiento y maquina de fabricacion de envases a partir de una pluralidad de laminas, y envase obtenido con dicho procedimiento

Publications (2)

Publication Number Publication Date
EP1040911A2 EP1040911A2 (de) 2000-10-04
EP1040911B1 true EP1040911B1 (de) 2001-11-07

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ID=8301650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98959915A Expired - Lifetime EP1040911B1 (de) 1997-12-16 1998-12-15 Verfahren und vorrichtung zum herstellen von behältern aus einer vielzahl von streifen und behälter

Country Status (6)

Country Link
EP (1) EP1040911B1 (de)
AT (1) ATE208264T1 (de)
AU (1) AU1564499A (de)
DE (1) DE69802438D1 (de)
ES (1) ES2149671B1 (de)
WO (1) WO1999030897A2 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2116362A (en) * 1936-06-22 1938-05-03 Morris Packaging Equipment Com Method and apparatus for making cartons
US2776608A (en) * 1952-03-31 1957-01-08 Gen Mills Inc Method of making a multi-layered container
US4596542A (en) * 1984-09-28 1986-06-24 Moen Lenard E Manufacture of internally reinforced boxes
WO1996014982A1 (en) * 1994-08-30 1996-05-23 Gics & Vermee, L.P. Method of making a food package and an associated apparatus

Also Published As

Publication number Publication date
ATE208264T1 (de) 2001-11-15
ES2149671B1 (es) 2001-04-01
ES2149671A1 (es) 2000-11-01
DE69802438D1 (de) 2001-12-13
EP1040911A2 (de) 2000-10-04
WO1999030897A2 (es) 1999-06-24
WO1999030897A3 (es) 1999-09-10
AU1564499A (en) 1999-07-05

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