DE102013107932A1 - Method for three-dimensional forming of sheet material - Google Patents
Method for three-dimensional forming of sheet material Download PDFInfo
- Publication number
- DE102013107932A1 DE102013107932A1 DE102013107932.6A DE102013107932A DE102013107932A1 DE 102013107932 A1 DE102013107932 A1 DE 102013107932A1 DE 102013107932 A DE102013107932 A DE 102013107932A DE 102013107932 A1 DE102013107932 A1 DE 102013107932A1
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- Germany
- Prior art keywords
- forming
- during
- piston
- sheet material
- holder
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
- B65B47/04—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure
- B65B47/06—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure using folding dies
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- 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
- B31B50/592—Shaping sheet material under pressure using punches 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
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/0077—Shaping by methods analogous to moulding, e.g. deep drawing techniques
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- 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
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/008—Shaping of tube ends, e.g. flanging, belling, closing, rim-rolling or corrugating; Fixing elements to tube ends
- B31F1/0087—Rim-rolling
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- 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
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/36—Moistening and heating webs to facilitate mechanical deformation and drying deformed 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
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
- B31B50/741—Moistening; Drying; Cooling; Heating; Sterilizing
-
- 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
- B31B50/74—Auxiliary operations
- B31B50/88—Printing; Embossing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
Abstract
Verfahren zum dreidimensionalen Umformen von flächigem Material aus insbesondere Naturfasern, wie z.B. Papier oder Karton, mit einem Kolben und einem büchsenförmigen Gegenteil, in welches das Material hinein gezogen wird, wobei das Material zwischen dem büchsenförmigen Gegenteil und einem sogenannten Faltenhalter eingeklemmt wird, wodurch das Material beim Umformen gezielt nachrutschen kann.Method for three-dimensional forming of sheet material, in particular natural fibers, such as e.g. Paper or cardboard, with a piston and a sleeve-shaped opposite, in which the material is pulled into it, wherein the material is clamped between the sleeve-shaped opposite and a so-called fold holder, whereby the material can slide down specifically during forming.
Description
Die Erfindung bezieht sich auf ein Verfahren zum dreidimensionalen Umformen von flächigem Material aus insbesondere Naturfasern, wie z.B. Papier oder Karton, mit einem Kolben und einem büchsenförmigen Gegenteil, in welches das Material hinein gezogen wird.The invention relates to a method for three-dimensional forming of sheet material, in particular natural fibers, such. Paper or cardboard, with a piston and a box-shaped opposite, into which the material is drawn.
Bei derartigen Umformverfahren bilden sich unkontrollierte Falten in unterschiedlicher Größe, die im Nachhinein nicht mehr korrigierbar sind, aber das Erscheinungsbild des fertigen Gegenstandes und eventuell sogar die Formstabilität, Festigkeit und Dichtigkeit im Randbereich erheblich beeinträchtigen.In such forming processes uncontrolled wrinkles form in different sizes, which are no longer correctable in retrospect, but significantly affect the appearance of the finished article and possibly even the dimensional stability, strength and tightness in the edge region.
Der Erfindung liegt die Aufgabe zugrunde, ein Umform-Verfahren vorzuschlagen, mit dem diese unkontrollierte Faltenbildung vermieden wird. Zudem wird eine Möglichkeit geschaffen, eine komplexe Endkontur mit erhöhtem Umformverhältnis formstabil und formhaltig herzustellen.The invention has for its object to propose a forming process with which this uncontrolled wrinkling is avoided. In addition, a possibility is created to produce a complex final contour with increased forming ratio dimensionally stable and dimensionally stable.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Material zwichen dem büchsenförmigen Gegenteil und einem sogenannten Faltenhalter eingeklemmt wird, wodurch das Material beim Umformen gezielt nachrutschen kann.This object is achieved in that the material zwichen the sleeve-shaped opposite and a so-called fold holder is clamped, whereby the material can slipping deliberately during forming.
Durch das Einklemmen des Material-Zuschnittes mittels des Faltenhalters werden beim Umformen gleichmäßig verteilte kleine Falten gebildet, die verpresst werden können und damit nicht stören.By clamping the material blank by means of the fold holder evenly distributed small wrinkles are formed during forming, which can be pressed and thus do not interfere.
Eine besonders vorteilhafte Ausgestaltung der Erfindung liegt darin, dass der Faltenhalter mit einem variablen Druck gegen das flächige Material drückt.A particularly advantageous embodiment of the invention is that the fold holder presses with a variable pressure against the sheet material.
Damit kann die Wirkung des Faltenhalters und damit die Entstehung der kleinen Falten gezielt gesteuert werden.Thus, the effect of the wrinkle holder and thus the emergence of small wrinkles can be controlled specifically.
Dabei kann gemäß einer weiteren Ausgestaltung der Erfindung in vorteilhafter Weise der Faltenhalter federbelastet gegen das flächige Material drücken.In this case, according to a further embodiment of the invention advantageously the fold holder spring-loaded press against the sheet material.
Auch ist es im Rahmen der Erfindung möglich, dass der gegen das flächige Material wirkende Druck des Faltenhalters steuer- bzw. regelbar ist.It is also possible within the scope of the invention that the pressure of the pleat holder acting against the sheet material can be controlled or regulated.
Sowohl die Federbelastung als auch die Steuer- bzw. Regelbarkeit können dabei in vorteilhafter Weise kombiniert werden.Both the spring load and the controllability or controllability can be combined in an advantageous manner.
Eine vorteilhafte weitere Ausgestaltung der Erfindung ist, dadurch gekennzeichnet, dass in Achsrichtung zum Kolben ein Gegenstempel vorgesehen ist, welcher das Material während des Umformens gegen den Kolben drückt, wobei der Gegenstempel variabel und regelbar ausgebildet sein kann.An advantageous further embodiment of the invention is characterized in that in the axial direction of the piston, a counter punch is provided, which presses the material during the forming against the piston, wherein the counter punch can be made variable and adjustable.
Dadurch wird das Material beim Umformen zuverlässig geführt, so dass keine unkontrollierten Bewegungen des Materials eintreten können. Die Haltekraft kann sehr genau eingestellt werden.As a result, the material is reliably guided during forming, so that no uncontrolled movements of the material can occur. The holding force can be set very accurately.
Des weiteren ist es sehr vorteilhaft, wenn erfindungsgemäß eine Kalibriereinrichtung vorgesehen ist, in welcher das umgeformte Material gegen den Kolben gepresst wird.Furthermore, it is very advantageous if according to the invention a calibration device is provided, in which the formed material is pressed against the piston.
Dadurch können die beim Umformen entstehenden kleinen Falten auf einfache Weise egalisiert werden.As a result, the resulting small wrinkles during forming can be equalized in a simple manner.
Als ebenfalls sehr vorteilhaft hat es sich erwiesen, wenn gemäß einer weiteren Ausgestaltung der Erfindung das Material vor, während und/oder nach dem Umformen und/oder Kalibrieren wenigstens einseitig angefeuchtet wird.It has also proven to be very advantageous if, according to a further embodiment of the invention, the material is moistened at least on one side before, during and / or after forming and / or calibrating.
Durch dieses Anfeuchten wird die Umformbarkeit und Kalibrierbarkeit des Materials ganz erheblich verbessert.This moistening considerably improves the formability and calibratability of the material.
Gemäß einer vorteilhaften weiteren Ausgestaltung der Erfindung ist vorgesehen, dass das Material vor, während und/oder nach dem Umformen und/oder vor und/oder während dem Kalibrieren beheizt wird.According to an advantageous further embodiment of the invention, it is provided that the material is heated before, during and / or after the forming and / or before and / or during the calibration.
Auch hierdurch wird die Umformbarkeit und Kalibrierbarkeit des Materials erheblich gesteigert.This also considerably improves the formability and calibratability of the material.
Dabei hat es sich als sehr vorteilhaft erwiesen, wenn gemäß einer weiteren Ausgestaltung der Erfindung die Temperatur und/oder die Verarbeitungsfeuchte des Materials abhängig vom verwendeten Material gewählt bzw. eingestellt wird.It has proved to be very advantageous if, according to a further embodiment of the invention, the temperature and / or the processing moisture of the material is selected or adjusted depending on the material used.
Eine weitere vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass der Boden des beim Umformen gebildeten Teils zwischen dem Kolben und Gegenstempel geprägt wird.A further advantageous embodiment of the invention is characterized in that the bottom of the formed during forming part between the piston and counter-punch is coined.
Dabei können unterschiedliche Prägungen vorgesehen werden; so kann der Boden aus der Ebene heraus geformt oder mit Mustern versehen werden. Zudem sorgen diese Prägegeometrien für eine zusätzliche Stabilisierung des Ziehteils. Abweichungen von der vorgesehenen Formkontur des Ziehteils werden minimiert.In this case, different imprints can be provided; so the floor can be shaped out of the plane or patterned. In addition, these stamping geometries provide additional stabilization of the drawn part. Deviations from the intended shape contour of the drawn part are minimized.
Eine weitere vorteilhafte Ausgestaltung der Erfindung liegt darin, dass das Material wenigstens einseitig mit einer Kunststoffschicht versehen ist oder wird.A further advantageous embodiment of the invention is that the material is or will be provided at least on one side with a plastic layer.
Damit ist das faserhaltige Material gegen innere und/oder äußere Einflüsse wirksam geschützt. Thus, the fibrous material is effectively protected against internal and / or external influences.
Sehr günstig ist es auch, wenn gemäß einer weiteren Ausgestaltung der Erfindung die sich beim Umformen bildenden feinverteilten Falten verpresst werden.It is also very favorable if, according to a further embodiment of the invention, the finely divided folds forming during forming are pressed.
Damit kann eine sehr glatte Oberfläche des umgeformten Teils erzielt werden.Thus, a very smooth surface of the formed part can be achieved.
Eine weitere vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass das beim Umformen gebildete Teil an seinem offenen Ende gezielt aufgeweitet wird.A further advantageous embodiment of the invention is characterized in that the part formed during forming is selectively expanded at its open end.
Durch diese gezielte Aufweitung kann ein Behälter geschaffen werden, der sich gegen den oberen Rand erweitert. Zudem weist der Behälter dennoch mit nicht aufgeweiteten Behältern vergleichbare Randqualitäten auf.By this targeted expansion, a container can be created, which widens against the upper edge. In addition, the container still has with non-expanded containers comparable edge qualities.
Sehr vorteilhaft ist es auch, wenn gemäß einer weiteren Ausgestaltung der Erfindung das offene Ende zu einem Siegelrand umgelegt wird. It is also very advantageous if, according to a further embodiment of the invention, the open end is transferred to a sealing edge.
Damit kann der geschaffene Behälter nach seinem Befüllen auf einfache Weise verschlossen werden.Thus, the created container can be closed after its filling in a simple manner.
Äußerst vorteilhaft ist es erfindungsgemäß auch, wenn der Siegelrand zusätzlich verdichtet wird, wobei die Verdichtung unter Zufuhr von Wärme und/oder nach vorangehendem Anfeuchten erfolgen kann.According to the invention, it is also extremely advantageous if the sealing edge is additionally compacted, wherein the densification can take place with the supply of heat and / or after previous moistening.
Hierdurch wird ein sehr glatter und gleichmäßiger Siegelrand geschaffen, der auch gute Festigkeitswerte aufweist.This creates a very smooth and uniform sealing edge, which also has good strength values.
Es sind jedoch auch andere Ausgestaltungen des offenen Endes denkbar; beispielsweise ist die Bildung einer sogenannten Mundrolle möglich.However, other embodiments of the open end are conceivable; For example, the formation of a so-called mouth roll is possible.
In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels veranschaulich. Dabei zeigt die Figur:
eine schematische Darstellung des Ablaufs des erfindungsgemäßen Verfahrens
Mit
a schematic representation of the sequence of the method according to the invention
With
Die Vorrichtung
Ein Gegenstempel
Nach dem Umformen wird das gebildete Teil
Während dieses Kalibrierens kann der obere Wandbereich aufgeweitet werden. Nach dem Kalibrieren wird das fertig umgeformte Teil
Vorher oder auch anschließend kann noch der obere Rand des Teils
Zur Verbesserung des Umformergebnisses kann das Material
Auch eine Beheizung ist möglich, wobei eine Strahlungsheizung für das Material oder eine Beheizung der Umform-Werkzeuge denkbar ist.A heating is possible, with a radiant heater for the material or heating of the forming tools is conceivable.
Eine Beschichtung des Materials beispielsweise mit einem Kunststoff ist zur Verbesserung der Dichtigkeit des fertigen Teils
Claims (15)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013107932.6A DE102013107932A1 (en) | 2013-07-24 | 2013-07-24 | Method for three-dimensional forming of sheet material |
| EP14178146.8A EP2829482B1 (en) | 2013-07-24 | 2014-07-23 | Process for three-dimensional forming of flat material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013107932.6A DE102013107932A1 (en) | 2013-07-24 | 2013-07-24 | Method for three-dimensional forming of sheet material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102013107932A1 true DE102013107932A1 (en) | 2015-01-29 |
| DE102013107932A8 DE102013107932A8 (en) | 2015-05-13 |
Family
ID=51225316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102013107932.6A Pending DE102013107932A1 (en) | 2013-07-24 | 2013-07-24 | Method for three-dimensional forming of sheet material |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2829482B1 (en) |
| DE (1) | DE102013107932A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016155710A2 (en) | 2015-04-01 | 2016-10-06 | Technische Universität Dresden | Apparatus and method for three-dimensionally shaping flat fiber material |
| DE102015115251A1 (en) * | 2015-09-10 | 2017-03-16 | Pester Pac Automation Gmbh | Method for three-dimensional forming of material |
| EP3216594A1 (en) | 2016-03-10 | 2017-09-13 | Pester Pac Automation GmbH | Apparatus for clamping, holding and guiding flat material and process for operating the apparatus |
| DE102016106142A1 (en) | 2016-04-04 | 2017-10-05 | Technische Universität Dresden | Packaging comprising fiber material and method for its production by compression drawing |
| DE102017123309A1 (en) | 2017-10-06 | 2019-04-11 | Technische Universität Dresden | Device for compression drawing of flat fiber material |
| DE102018113512A1 (en) * | 2018-06-06 | 2019-12-12 | Progress Packaging Gmbh | Apparatus and method for producing filler with pressing device |
| EP4082765A1 (en) * | 2021-04-27 | 2022-11-02 | MULTIVAC Sepp Haggenmüller SE & Co. KG | Manufacturing a packaging container of fibrous material |
| WO2023175550A1 (en) * | 2022-03-18 | 2023-09-21 | Sarong Societa' Per Azioni | Apparatus and method for making a container |
| WO2023175551A1 (en) * | 2022-03-18 | 2023-09-21 | Sarong Societa' Per Azioni | Apparatus and method for making a container |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015115249A1 (en) * | 2015-09-10 | 2017-03-16 | Pester Pac Automation Gmbh | packaging |
| DE102017109879A1 (en) * | 2017-05-08 | 2018-11-08 | Pester Pac Automation Gmbh | Method for three-dimensional forming of sheet material |
| IT201800008032A1 (en) | 2018-08-10 | 2020-02-10 | Tme Spa | METHOD AND PACKAGING MACHINE FOR THE REALIZATION OF A COMPOSTABLE POD FOR INFUSION PRODUCTS AND COMPOSTABLE PAD FOR INFUSION PRODUCTS |
| BR112023002798A2 (en) * | 2020-10-19 | 2023-05-02 | Westrock Mwv Llc | PUNCH HEAD, PUNCH, MOLDING APPARATUS, CONTAINER MAKING MACHINE, MOLDING METHOD AND BOTTOM BREAK AND CONTAINER FORMED THEREOF |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015105099A1 (en) | 2015-04-01 | 2016-10-06 | Technische Universität Dresden | Method and device for three-dimensional forming of flat fiber material |
| WO2016155710A2 (en) | 2015-04-01 | 2016-10-06 | Technische Universität Dresden | Apparatus and method for three-dimensionally shaping flat fiber material |
| US11084242B2 (en) | 2015-09-10 | 2021-08-10 | Pester Pac Automation Gmbh | Method for three-dimensional shaping of material |
| DE102015115251A1 (en) * | 2015-09-10 | 2017-03-16 | Pester Pac Automation Gmbh | Method for three-dimensional forming of material |
| WO2017042108A1 (en) * | 2015-09-10 | 2017-03-16 | Pester Pac Automation Gmbh | Method for three-dimensional shaping of material |
| US20180264768A1 (en) * | 2015-09-10 | 2018-09-20 | Pester Pac Automation Gmbh | Method for three-dimensional shaping of material |
| EP3216594A1 (en) | 2016-03-10 | 2017-09-13 | Pester Pac Automation GmbH | Apparatus for clamping, holding and guiding flat material and process for operating the apparatus |
| DE102016104375A1 (en) | 2016-03-10 | 2017-09-14 | Pester Pac Automation Gmbh | Device and method for operating the device |
| DE102016106142A1 (en) | 2016-04-04 | 2017-10-05 | Technische Universität Dresden | Packaging comprising fiber material and method for its production by compression drawing |
| DE102017123309A1 (en) | 2017-10-06 | 2019-04-11 | Technische Universität Dresden | Device for compression drawing of flat fiber material |
| DE102018113512A1 (en) * | 2018-06-06 | 2019-12-12 | Progress Packaging Gmbh | Apparatus and method for producing filler with pressing device |
| EP4082765A1 (en) * | 2021-04-27 | 2022-11-02 | MULTIVAC Sepp Haggenmüller SE & Co. KG | Manufacturing a packaging container of fibrous material |
| WO2023175550A1 (en) * | 2022-03-18 | 2023-09-21 | Sarong Societa' Per Azioni | Apparatus and method for making a container |
| WO2023175551A1 (en) * | 2022-03-18 | 2023-09-21 | Sarong Societa' Per Azioni | Apparatus and method for making a container |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2829482A1 (en) | 2015-01-28 |
| EP2829482B1 (en) | 2018-07-04 |
| DE102013107932A8 (en) | 2015-05-13 |
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