EP3837063A1 - Emballage sous forme de boîte, ébauche d'emballage sous forme de boîte ainsi que dispositif et procédé pour sa fabrication - Google Patents

Emballage sous forme de boîte, ébauche d'emballage sous forme de boîte ainsi que dispositif et procédé pour sa fabrication

Info

Publication number
EP3837063A1
EP3837063A1 EP19752178.4A EP19752178A EP3837063A1 EP 3837063 A1 EP3837063 A1 EP 3837063A1 EP 19752178 A EP19752178 A EP 19752178A EP 3837063 A1 EP3837063 A1 EP 3837063A1
Authority
EP
European Patent Office
Prior art keywords
die
packaging
wall
blank
height
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.)
Granted
Application number
EP19752178.4A
Other languages
German (de)
English (en)
Other versions
EP3837063C0 (fr
EP3837063B1 (fr
Inventor
Stephan Ebner
Gustav-Konstantin GROSS
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.)
Linhardt GmbH and Co KG
Original Assignee
Linhardt GmbH and Co KG
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 Linhardt GmbH and Co KG filed Critical Linhardt GmbH and Co KG
Publication of EP3837063A1 publication Critical patent/EP3837063A1/fr
Application granted granted Critical
Publication of EP3837063C0 publication Critical patent/EP3837063C0/fr
Publication of EP3837063B1 publication Critical patent/EP3837063B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/20—Making uncoated products by backward extrusion
    • B21C23/205—Making products of generally elongated shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
    • B65D1/165—Cylindrical cans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/46—Local reinforcements, e.g. adjacent closures

Definitions

  • the invention relates to a can packaging, a can packaging blank and an apparatus and a method for the production thereof.
  • Can packaging is often formed from blanks, which by a
  • An extrusion process is a forming process in which the forming of a workpiece by a
  • the direction of stamp movement provides the basis for distinguishing between
  • thin-walled sheet metal consisting of a one-piece base part produced by extrusion, an adjoining, tubular middle part and a located on the side of the middle part opposite the bottom part, with the
  • the bottom part has ribs, beads or the like, which are introduced into the bottom part in the course of the extrusion process when the bottom part is produced with the middle part.
  • the bottom part has ribs, beads or the like, which are introduced into the bottom part in the course of the extrusion process when the bottom part is produced with the middle part.
  • This is usually achieved by a deformation or shaping treatment of the can packaging blank or the can packaging.
  • the problem arises that with every deformation of the outer surface there is a corresponding deformation of the inner surface and thus of the interior of the can container.
  • a circumferential waist of the can for example, has the consequence that the
  • the interior of the can is initially tapered and then expanded again towards the bottom of the can.
  • an interior space which is reduced in comparison to the untapped cylindrical box.
  • problems arise when filling the can packaging, which can only be done with lower pressures and thus more time. Problems also arise when emptying the can packaging, since any shape deviating from a smooth, continuous inner surface promotes the remaining fill goods and makes them more likely.
  • the object of the present invention is to provide a can packaging which has a haptically distinguishable outer surface and at the same time can be filled easily and quickly and can be emptied with as little residue as possible.
  • This object is achieved according to the invention by the device for producing a can packaging blank according to independent claim 1, by the method for producing a can packaging blank according to independent claim 10, by the can packaging blank according to independent claims 13, 17 and 18 and the can packaging according to independent claim 19. Further advantageous aspects, details and refinements of the invention result from the dependent claims, the description and the drawings.
  • the present invention provides a device for producing a
  • the device has a die and a press die, the die having a die bottom and a die wall with a die wall height.
  • the die wall has in its area adjacent to the die bottom at least one projection with a predetermined width, predetermined fleas, predetermined depth and predetermined
  • the projection provided in the area of the die wall adjacent to the die bottom allows a haptically perceptible design the outside of the wall of a can packaging blank or the can packaging produced from this blank without the inner surface of the wall of the can packaging blank or the can packaging being changed.
  • the structuring of the outer surface, that is to say the outside of the wall of the can packaging blank does not take place, as is known from the prior art, by subsequent deformation, but during the manufacturing process when the can packaging is created. In all subsequent deformation steps, the wall of the can packaging is dented, notched, bulged or otherwise changed while maintaining the previously formed wall thickness. Common to all deformation steps is the fact that the deformation visible on the outside becomes visible as a negative on the inside.
  • the can wall is dented, the corresponding area appears on the outer surface as a depression and on the inner surface as an elevation. Conversely, the same applies: if the can wall is dented, an elevation appears on the outside, which corresponds to a depression on the inside of the wall of the can packaging.
  • the structuring of the outside of the wall brought about by the device according to the invention for producing a can packaging blank takes place directly during the production process by backward extrusion through a variation in the wall thickness of the can packaging blank.
  • the backward-flowing metal has a recess in the wall of the wall that is formed in accordance with the shape of the projection
  • Can packaging blanks arise.
  • the simplest example is a point-like tip with a height of 0.1 mm as a projection on the die wall. This tip leaves a groove 0.1 mm deep in the flowing metal that forms the wall. This depression visible on the outside, however, has no equivalent in the form of an increase on the inside of the can wall. This remains smooth and continuous as with a can packaging without structuring the outside.
  • the number of projections and their distribution over the circumference of the die wall can be varied.
  • the outside of the wall can be designed, for example, in the form of two grooves arranged closely next to one another, but can also be designed as a plurality of grooves distributed in any way over the circumference of the can packaging.
  • the shape of the projection as well as its width, height, depth and cross section can also be varied. In this way, virtually any number of relief-like depressions can be created in the wall of the can packaging that are visible on the outside.
  • a projection with a semicircular cross section with a radius of 1 mm creates a semicircular depression with a maximum depth of 0.5 mm in the wall of the can packaging.
  • a depression in the wall of the can packaging is only formed over the portion of the can packaging that is formed from the section of the round blank that comes into contact with the respective projection. If, for example, the projection measured from the bottom of the die has a height of 1 mm along the die wall and if a blank with a thickness of 2 mm is used to form the can packaging blank, the groove formed by the projection extends over 50% of the starting from the bottom of the can packaging blank vertical extension of the
  • the groove extends accordingly only over 25% of the vertical extension of the
  • the recess would extend in the longitudinal direction over the entire extent of the can packaging blank. However, this is not desirable since depressions in the region of the open end of the can facing away from the bottom of the can packaging blank
  • Can packaging blanks are associated with significant disadvantages.
  • a can packaging blank is provided with a tapering shoulder and a rolled edge at its open end in the course of its further processing into a can packaging.
  • the rolled edge is used for the subsequent attachment of a
  • the predetermined flea of a projection corresponds to the maximum extent of the projection in a direction parallel to the die wall.
  • the fleas of a projection can of course vary over the width and also over the depth of the projection.
  • the statement that the fleas of a certain projection correspond to the maximum extension of the projection in a direction parallel to the die wall means that the fleas are clearly defined.
  • Protrusions maximum 95% of the die wall height ensures that the area of the can packaging blank, which is provided for forming the shoulder and the rolled edge of the can packaging, has no recess or relief-like structure on the outside of its wall.
  • the smooth, continuously running outer surface in this area ensures a tight connection between the cap and the can packaging.
  • a strictly defined groove is a surface imperfection that is a linear depression with a rounded or flat bottom.
  • a crack has a sharp base and grooves are created by the ideal geometric shape of the tool cutting edge.
  • the wall of the can packaging blank is referred to as "striations", regardless of its specific configuration and regardless of the definitions cited above.
  • the die wall preferably has several projections in its area adjacent to the die bottom. As already stated, this embodiment increases the Possibilities of variation in the design of the structure of the outside of the
  • any number of projections can have the same width, height, depth and cross section, while another group of projections can also have the same width, height, depth and cross section, but which differ from those of the first group. It is also possible for all the projections to have different widths and / or different heights and / or different depths and / or different cross sections. In principle, any combination of projections can be selected, each of which has a specific width, height, depth and cross section. However, the height of each of the projections provided in the area of the die wall adjacent to the die bottom may not exceed 95% of the die wall height.
  • the width of a particular protrusion in all embodiments of the present invention corresponds to the maximum extension of the protrusion in a direction parallel to the die bottom.
  • the width of the projection in these cases corresponds to the length of a curve corresponding to the curvature of the die wall
  • the height of a particular projection corresponds in all embodiments of the present invention to the maximum extension of the projection in a direction parallel to the die wall.
  • the height of a projection can of course vary over the width and also over the depth of the projection. However, by stating that the height of a certain projection corresponds to the maximum extension of the projection in a direction parallel to the die wall, this height is clearly defined.
  • the depth of a specific projection corresponds to the maximum extension of the projection in a direction perpendicular to the die wall.
  • the depth of a projection can of course vary over the width and also over the height of the projection.
  • the projections or a single projection can have any width, which is only limited by the circumference of the can packaging blank produced with the aid of the die.
  • the width of a projection can be, for example, a quarter, a third or even half the circumference of the
  • the projections preferably have a width of 0.1 mm to 10 mm, particularly preferably 0.5 mm to 5 mm and particularly preferably 1 mm to 2.5 mm. If several projections are provided, any number of projections can have an identical first width, which is for example in the range between 1.5 mm and 2 mm, while another group of
  • Projections can have an identical second width, which differs from the first width and is for example in the range between 2 mm and 2.5 mm.
  • the two groups of projections and thus also the two groups of grooves in the wall of the can packaging can be formed opposite one another as sections with grooves of the same width in each case.
  • alternating grooves of different widths can follow one another. It is also possible for all the projections to have different widths. In principle, any combination of projections can be selected, each of which has a specific width. It is obvious to the person skilled in the art that simply because of the variation in the width of the projections there is an almost infinite variety for a relief-like design of the outside of the projections
  • the projections preferably have a height of 0.1 mm to 30 mm, particularly preferably 0.5 mm to 10 mm and particularly preferably 1 mm to 5 mm. If several projections are provided, any number of projections can have an identical first height, which is, for example, in the range between 2 mm and 3.5 mm, while another group of projections can have an identical second height, which, however, differs from that first height differs and is, for example, in the range between 3.5 mm and 4.5 mm. Because a certain
  • Can packaging blank from a certain blank, which has a certain thickness is produced by projections of different heights in the wall of the can packaging blank grooves of different lengths in the longitudinal direction of the can packaging blank.
  • the aforementioned two groups of projections and thus the two groups of grooves in the wall of the can packaging can be opposite one another as sections with grooves of each be of the same length. But alternating scoring can also be done
  • Combination of projections can be chosen, each of which has a certain height for itself. It is obvious to a person skilled in the art that the variation of the height of the projections alone results in an almost infinite variety for a relief-like design of the can packaging blank and the can packaging produced therefrom.
  • the number of groups of grooves of the same height is only limited by the size of the can packaging.
  • the height of the protrusions can also be varied continuously according to a certain pattern, whereby, for example, grooves of different lengths are produced around the entire circumference of the can packaging blank or the can packaging, which in their sequence simulate a wave pattern, for example.
  • the projections preferably have a depth of 0.01 mm to 1 mm, particularly preferably from 0.05 mm to 0.5 mm and particularly preferably from 0.1 mm to 0.25 mm. If a plurality of projections are provided, any number of projections can have an identical first depth, which is, for example, in the range between 0.15 mm and 0.2 mm, while another group of projections can have an identical second depth, which however is different differs from the first depth and is, for example, in the range between 0.2 mm and 0.25 mm.
  • the two groups of projections and thus also the two groups of grooves in the wall of the can packaging opposite one another can be formed as sections with grooves of the same depth in each case. But alternately, grooves of different depths can follow one another. It is also possible that all
  • the number of groups of grooves of the same depth is only limited by the size of the can packaging.
  • the projections provided in the area of the die wall adjacent to the die bottom have a cross section parallel to the die bottom, the
  • Cross-section preferably triangular, quadrangular, in particular trapezoidal
  • the cross section of the protrusions can be chosen practically arbitrarily within limits which are obvious to the person skilled in the art and are technically determined.
  • the above-mentioned cross sections result in grooves of a haptically and optically particularly demanding form and are therefore preferred in the context of the present invention.
  • the projections are preferably circumferential over the entire circumference of the
  • the press stamp preferably has a circumferential bead in its edge region adjacent to the die base in the state of use. Due to the gap remaining between the bead and the die wall, the thickness of the wall of the
  • Die wall defines the gap remaining between the bead and the projection the thickness of the wall of the can packaging blank in the area of a groove.
  • the can packaging blank and also the can packaging produced therefrom can in principle have a horizontal cross section which is practically arbitrarily chosen within limits which are obvious to the person skilled in the art and are technically determined.
  • Cross section corresponds to the cross section of the die wall parallel to the die bottom.
  • Can packaging blanks very often have the shape of a hollow, vertical circular cylinder. According to a preferred embodiment of the present invention
  • Invention therefore forms the die bottom with the die wall a hollow, vertical circular cylinder.
  • the diameter of this circular cylinder parallel to
  • Die bottom is preferably between 10 mm and 120 mm.
  • An oval cross-section of the can packaging blank parallel to the die bottom is also easy to implement and visually appealing. The same applies to a rectangular, square, triangular or generally polygonal cross section. However, it should be emphasized again that in principle every conceivable cross-sectional shape is possible.
  • the present invention also includes a method of making a
  • Can packaging blank by backward extrusion comprising the steps a) providing a device for producing a can packaging blank by backward extrusion with die and press die as described above, b) inserting a round blank into the die,
  • the diameter of the circular blank is preferably selected such that the circular blank lies on the projections in its edge region after insertion into the die before the press ram is inserted.
  • the punch is then inserted into the die and exerts pressure on the blank.
  • the blank material is then first pressed down to the die bottom and is then in contact with these projections via the height H of the projections.
  • Projections provided adjacent region of the die wall to a predetermined height the predetermined height being a maximum of 95% of the thickness of the round blank.
  • the projections provided in the area of the die wall adjacent to the die bottom have a predetermined height, the predetermined height being at most 75%, particularly preferably at most 50%, of the thickness of the round blank.
  • the limitation provided according to the invention is thus in any case also observed when the method for producing a can packaging blank is carried out by backward extrusion ,
  • this limitation ensures that the area of the can packaging blank, which is provided for forming the shoulder and the rolled edge of the can packaging, has no recess or relief-like structure on the outside of its wall. Due to the smooth, continuously running outside, a tight connection of Cap and can packaging are ensured.
  • Can packaging blank which is formed from the portion of the blank that comes into contact with the projections. If, for example, the projection measured from the bottom of the die has a height of 2 mm along the die wall and if a blank with a thickness of 3 mm is used to form the can packaging blank, the groove formed by the projection extends from the bottom of the
  • the present invention also includes a can packaging blank with a main axis defining a longitudinal direction and a wall having an outside and an inside.
  • the wall of the can packaging blank has a variable wall thickness at least over a portion of the can packaging blank that extends in the longitudinal direction.
  • the section of the can packaging blank with variable wall thickness extends from the bottom of the
  • variable wall thickness is caused by the fact that only the outside of the wall is designed in relief.
  • the portion of the can packaging blank with a variable wall thickness extends from the bottom of the can packaging blank over a maximum of 95% of the height in the longitudinal direction of the can packaging blank.
  • this limitation ensures that the area of the can packaging blank, which is intended for the subsequent formation of the shoulder and the rolled edge of the can packaging, has no recess or relief-like structure on the outside of its wall.
  • the smooth, continuously running outer surface in this area ensures a tight connection between the cap and the can packaging.
  • Can packaging formed which has a discontinuous or variable wall thickness in its cross-sectional area at least over a longitudinally extending partial area, the variable wall thickness being caused by the fact that only the outside of the wall is designed in relief.
  • Such Can packaging or can packaging blanks, regardless of the method used to manufacture them, are not known from the prior art.
  • variable wall thickness is caused by the fact that only the outside of the wall is designed in relief.
  • the inside of the wall of the can packaging blank remains unchanged, that is, it is smooth and continuous, like a can packaging without
  • the die bottom can be circular, oval, rectangular, square, triangular or polygonal, the
  • Die wall is arranged vertically on the die bottom.
  • the cross section of the die parallel to the die bottom can also have a circular, oval, rectangular, square, triangular or polygonal shape.
  • can packaging blanks can be produced in an analogous variety of shapes.
  • Can packaging blanks can accordingly not only have a circular shape, but also an oval, rectangular, square, triangular or polygonal shape. Common to all the embodiments is the fact that the variable wall thickness is caused exclusively by a relief-like design of the outside of the wall.
  • the statement that the inside of the wall of the can packaging blank is smooth and continuous means, for example in the case of a circular cross section, that the inside of the wall has a constant curvature.
  • the term “continuous” does not refer to the entire inside, since there can be no question of a “continuous” transition at the edges of the square.
  • smooth and continuous or “steady” refers to each of the four inner surfaces of the square.
  • the feature includes that "only the outside of the wall is designed in relief", at the same time the statement that there is no such relief-like design on the inside of the wall. There are therefore no depressions, ridges or other structures on the inside.
  • the portion of the can packaging blank with variable wall thickness preferably extends from the bottom of the can packaging blank to a maximum of 90%, preferably a maximum of 85%, particularly preferably a maximum of 80%, particularly preferably a maximum of 75% and very particularly preferably a maximum of 50% of the height in the longitudinal direction of the can packaging blank , Embodiments are also preferred in which the partial area of the
  • Can packaging blank with a variable wall thickness starting from the bottom of the can packaging blank extends over at least 5%, preferably at least 15%, particularly preferably at least 25% of the height in the longitudinal direction of the can packaging blank.
  • the groove-like depressions extending from the outer surface into the wall of the can packaging blank run parallel to the main axis (HA) of the can packaging blank.
  • the present invention also includes a can packaging blank that can be manufactured using one of the devices described above for producing a
  • the present invention also includes a can packaging blank that can be produced by one of the methods described above for producing a can packaging blank by back extrusion.
  • the present invention also includes a can packaging that can be produced using one of the can packaging blanks described above.
  • a can packaging blank produced according to one embodiment of the present invention all that is required to produce the finished can packaging is that the steps known to the person skilled in the art, such as, for example, the formation of the shoulder and the flanging of the opening of the can packaging blank facing away from the can packaging base to form a rolled edge.
  • Figure 1 is a schematic representation of a vertical section through a die known from the prior art.
  • Fig. 2 shows a schematic representation of a vertical section through a
  • FIG. 3A in a schematic representation in side plan view of an inventive
  • 3B shows a schematic representation in plan view of a section of the die according to FIG. 3A;
  • FIG. 4A in a schematic representation in a side plan view
  • FIG. 4B is a schematic illustration of an enlarged detail of a section along the plane A-A of FIG. 4A;
  • FIG. 5 in a schematic representation in a side plan view of an inventive
  • FIG. 1 shows a schematic representation of a vertical section through a die 2 known from the prior art.
  • the press ram 3, the die 2 with die bottom 2.1 and die wall 2.2 are shown.
  • the press ram 3 has a circumferential bead 5.
  • the press ram 3 is shown spaced from the die 2, that is to say the situation before the can packaging blank is formed.
  • the blank 6 is inserted into the die 2.
  • the press ram 3 is inserted into the die 2 and exercises
  • FIG. 2 shows a schematic representation of a vertical section through a device according to the invention for producing a can packaging blank by backward extrusion. The illustration is similar to the device shown in the left part of FIG. 1 and known from the prior art.
  • the press ram 3, the die 2 with die bottom 2.1 and die wall 2.2 are shown.
  • the press ram 3 has a circumferential bead 5.
  • the die wall 2.2 has, in its area adjacent to the die bottom 2.1, a plurality of projections 4 with a width of 1 mm, a height H of 1.5 mm, a depth of 0.15 mm and a cross section which is trapezoidal in shape parallel to the die bottom 2.2.
  • the blank 6 is inserted into the die 2.
  • the blank 6 is made of aluminum and has a thickness HR of 4.5 mm.
  • the height of the die wall HG is 6 mm.
  • the height of the projections 4 is thus 25% of the height of the die wall.
  • the blank 6 lies on the projections 4 before the press ram 3 is inserted.
  • the press ram 3 is subsequently inserted into the die 2 and exerts pressure on the round blank 6.
  • the blank material is then first pressed down to the die base 2.2 and is then in contact with the projections 4 over a height H of 1.5 mm. Since the thickness HR of the round blank is a factor 3 greater than the height H of the projections 4, the groove-like depressions in the wall of the pull through in this way
  • FIG. 3A shows a die 2 according to the present invention in a schematic illustration in a side plan view.
  • the die 2 is shown with die bottom 2.1 and die wall 2.2.
  • the die wall 2.2 has a plurality of projections 4 in its area adjacent to the die bottom 2.1.
  • the projections 4 have a width B of 5 mm, a height H of 10 mm, a depth of 0.15 mm and a cross section which is trapezoidal in shape parallel to the die base 2.2.
  • the die base 2.1 adjacent edges of the projections 4 are chamfered, so they do not project perpendicularly from the die wall 2.1, but run at an angle of approximately 45 ° relative to the die wall 2.1.
  • the depth T of the projections 4 of 0.15 mm can be seen from the detail of the die according to FIG. 3A shown in a top view in a schematic illustration in FIG. 3B. All projections 4 of the embodiment of the die according to the invention shown in FIGS. 3A and 3B have the same height, width, depth and the same cross section and are equidistantly spaced apart and evenly distributed around the entire circumference of the die wall.
  • FIG. 4A shows a schematic illustration in a top view from the side
  • FIG. 4B shows a schematic illustration of an enlarged detail of the section along the plane A-A of FIG. 4A.
  • the can packaging blank 10 has a main axis HA defining a longitudinal direction LR and a cross-sectional area arranged perpendicular to the main axis HA, the wall 12 of the can packaging blank 10 having an outside 12.1 and an inside 12.2.
  • the wall 12 in FIG. 2 has a portion TB of the can packaging blank 10 that extends in the longitudinal direction LR
  • Cross-sectional area of the can packaging blank 10 a variable wall thickness WD, which is caused by groove-like depressions 11 in the outer surface 12.1, the inner surface 12.2 running continuously over the area of the groove-like depressions 11.
  • the depth T of the groove-like depressions 11 corresponds to the depth T of the projections 4 of 0.15 mm (see FIG. 3B).
  • Can packaging blanks 10 have the same height, width, depth and the same cross-section and are equidistantly spaced apart and evenly distributed around the entire circumference of the can packaging blank 10.
  • FIG. 5 shows a schematic illustration in a top view from the side
  • Can packaging 20 according to the invention produced from the can packaging blank 10 according to FIG. 4A.
  • the post-processing known to the person skilled in the art of the opening of the can packaging blank 10 facing away from the can packaging base was carried out for producing the finished can packaging 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Making Paper Articles (AREA)

Abstract

La présente invention concerne un dispositif (1) pour fabriquer une ébauche d'emballage sous forme de boîte (10) par extrusion inverse. Le dispositif présente une matrice (2) et un poinçon de pressage (3), la matrice (2) présentant un fond (2.1) de matrice et une paroi (2.2) de matrice ayant une hauteur de paroi de matrice HG. La paroi (2.2) de matrice présente dans sa zone adjacente au fond (2.1) de matrice au moins une saillie (4) présentant une largeur (B) prédéterminée, une hauteur (H) prédéterminée, une profondeur (T) prédéterminée et une section transversale prédéterminée, la hauteur (H) de la saillie (4) représentant au maximum 95 % de la hauteur de paroi de matrice (HG).
EP19752178.4A 2018-08-17 2019-08-07 Emballage sous forme de boîte, ainsi que dispositif et procédé pour la fabrication de son ébauche Active EP3837063B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018120091.9A DE102018120091A1 (de) 2018-08-17 2018-08-17 Dosenverpackung, Dosenverpackungsrohling sowie Vorrichtung und Verfahren zu deren Herstellung
PCT/EP2019/071219 WO2020035367A1 (fr) 2018-08-17 2019-08-07 Emballage sous forme de boîte, ébauche d'emballage sous forme de boîte ainsi que dispositif et procédé pour sa fabrication

Publications (3)

Publication Number Publication Date
EP3837063A1 true EP3837063A1 (fr) 2021-06-23
EP3837063C0 EP3837063C0 (fr) 2023-12-06
EP3837063B1 EP3837063B1 (fr) 2023-12-06

Family

ID=67551555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19752178.4A Active EP3837063B1 (fr) 2018-08-17 2019-08-07 Emballage sous forme de boîte, ainsi que dispositif et procédé pour la fabrication de son ébauche

Country Status (5)

Country Link
US (1) US20210170464A1 (fr)
EP (1) EP3837063B1 (fr)
CA (1) CA3109743C (fr)
DE (1) DE102018120091A1 (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9890173B2 (en) 2013-11-01 2018-02-13 Kala Pharmaceuticals, Inc. Crystalline forms of therapeutic compounds and uses thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904173A (en) * 1954-03-29 1959-09-15 Frederick W Braun Plunger and die for indirect extrusion
JPS6021539B2 (ja) * 1978-08-08 1985-05-28 共同印刷株式会社 複合チユ−ブ及びその製法
JPS5884611A (ja) * 1981-11-13 1983-05-20 Machiyama Seisakusho:Kk 金属製容器の成形方法
DE4133340C2 (de) * 1991-10-08 1999-05-27 Harry Frank Kondensatorbechergehäuse mit Sollberstbereich sowie Verfahren und Werkzeug zu seiner Herstellung
DE19645954A1 (de) * 1996-11-07 1998-05-14 Anton Holzhauer Umformtechnik Verfahren zum Fließpressen eines napfförmigen Teils
DE19708826C3 (de) * 1996-12-01 2003-10-30 Hans Werner Franzer Behälter, insbesondere Dose, aus dünnwandigem Blech
US6126034A (en) * 1998-02-17 2000-10-03 Alcan Aluminum Corporation Lightweight metal beverage container
GB2337951B (en) * 1998-06-05 2002-03-13 Avdel Textron Ltd Method of forming a tubular member
DE102007048940A1 (de) * 2007-10-12 2009-04-16 Fa. Otto Fuchs Verfahren zur Herstellung einer Buchse
CN105327962B (zh) * 2015-10-19 2017-11-14 江苏森威集团飞达股份有限公司 一种控制杯形件反挤压底部形状的模具

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9890173B2 (en) 2013-11-01 2018-02-13 Kala Pharmaceuticals, Inc. Crystalline forms of therapeutic compounds and uses thereof

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EP3837063C0 (fr) 2023-12-06
DE102018120091A1 (de) 2020-02-20
CA3109743C (fr) 2023-04-25
US20210170464A1 (en) 2021-06-10
EP3837063B1 (fr) 2023-12-06
CA3109743A1 (fr) 2020-02-20
WO2020035367A1 (fr) 2020-02-20

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