EP0474679A1 - Procede et appareil de fabrication d'ebauches de formes tridimensionnelles - Google Patents

Procede et appareil de fabrication d'ebauches de formes tridimensionnelles

Info

Publication number
EP0474679A1
EP0474679A1 EP90908174A EP90908174A EP0474679A1 EP 0474679 A1 EP0474679 A1 EP 0474679A1 EP 90908174 A EP90908174 A EP 90908174A EP 90908174 A EP90908174 A EP 90908174A EP 0474679 A1 EP0474679 A1 EP 0474679A1
Authority
EP
European Patent Office
Prior art keywords
sheet
station
moulds
impressions
mould
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.)
Withdrawn
Application number
EP90908174A
Other languages
German (de)
English (en)
Other versions
EP0474679A4 (en
Inventor
Lawrence Anthony Boyhan
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.)
Gradual Pty Ltd
Original Assignee
Gradual Pty Ltd
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 Gradual Pty Ltd filed Critical Gradual Pty Ltd
Priority claimed from AU57271/90A external-priority patent/AU638255B2/en
Publication of EP0474679A1 publication Critical patent/EP0474679A1/fr
Publication of EP0474679A4 publication Critical patent/EP0474679A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/08—Forming three-dimensional containers from sheet material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • 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

Definitions

  • the present invention relates to a method and apparatus for the fabrication of 3-dimensional blanks for the packaging of articles and is particularly, although not exclusively, directed to a method and apparatus for fabrication of 3-dimensional blanks for the moulding of foil encased articles.
  • Alignment of the preprinted foil with the shape forming moulds is not exact with this process and can result in slight drifting of the patterns. It is an object of the present invention to alleviate the abovementioned problems to produce a more consistent blank.
  • a further object of the present invention is to provide an increase in the speed of production of the blanks over the prior art.
  • a still further object of the invention is to provide a method and machine for forming multiple blanks at a pressing station.
  • the present invention in one aspect provides a method for producing 3-dimensional blanks containing a plurality of moulds impressed in a sheet material, said method including the steps oi
  • an apparatus for producing 3-dimensional blanks containing a plurality of moulds impressed in a sheet material said apparatus including a plurality of sequentially arranged stations for forming said moulds; a first station including sheet clamping means and means for subdividing said sheet into a plurality of first mould impressions; a second station including sheet clamping means and a pair of co-operating complementary dies for forming final mould impressions coinciding with said plurality of first mould impressions.
  • Fig. 1 is a side view of a first embodiment of machine for the fabrication of 3-dimensional blanks made in accordance with the invention
  • Fig. 2 is a plan view of the machine shown in Fig. 1 with the stations removed from the machine;
  • Fig. 3 is a cross-sectional view along and in the direction of arrows 3-3 of Fig. 1 of a first station for subdividing a sheet with a first set of mould impressions;
  • Fig. 4 is a similar view to that of Fig. 3 showing the station in its closed position;
  • Fig. 5 is a cross-sectional view along and in the direction of arrows 5-5 of Fig. 4;
  • Fig. 6 is a perspective view of the blank as formed at the first station
  • Fig. 7 is a cross-sectional view along and in the direction of arrows 7-7 of Fig. 1 of a second station for further subdividing a sheet with a second set of mould impressions;
  • Fig. 8 is a cross-sectional view along and in the direction of arrows 8-8 of Fig. 7 of the second station
  • Fig. 9 is a cross-sectional view along and in the direction of arrows 9-9 Fig. 8 of the second station
  • Fig. 10 is a perspective view of the blank as formed at the second station
  • Fig. 11 is a cross-sectional view along and in the direction of arrows 11-11 of Fig. 2 of a third station;
  • Fig. 12 is a similar view to that of Fig. 11 showing the third station in its closed position;
  • Fig. 13 is a cross-sectional view along and in the direction of arrows 13-13 of Fig. 12 of the third station;
  • Fig. 14 is a cross-sectional view along and in the direction of arrows 14-14 of Fig. 2 of a fourth station;
  • Fig. 15 is a cross-sectional view along and in the direction of arrows 15-15 of Fig. 2 of a fifth station;
  • Fig. 16 is a view similar to Fig. 3 showing an alternative embodiment for the operation of the various stations shown in Figs. 1 to 15;
  • Fig. 17 is a similar view to that of Fig. 6 showing a variation of the mould shape; and Hg. 18 is the final blank fabricated by the machine shown in Figs 1 to 16 using the blank in Fig. 17.
  • a machine 20 for forming 3-dimensional blanks from a sheet material The machine includes two offset endless chain conveyors 22, 24 which are driven by sprockets 26 through motors (not shown). The conveyors are controlled by a controller (not shown) to move the chains in an intermittent manner through the various stations to be described.
  • a plurality of trays 28 are pivotally attached at diagonal corners 30, 32 to conveyors 22, 24 to provide horizontal movement of trays 28.
  • the offset nature of conveyors 22, 24 will always maintain trays 28 in the horizontal disposition.
  • each tray 28 is subdivided into two smaller trays 34, 36 to provide a dual in-line fabrication machine. It is dear that a single tray or multiple tray system can be used depending on requirements.
  • Each tray 34, 36 is basically formed as a peripheral rectangular frame of L-shaped cross-section.
  • a lower ledge 38 (Rg. 3) supports a template 40 to form the base of trays 34, 36.
  • the machine 20 requires sheets 42 of material for placing in trays 34, 36. These sheets are usually formed from a preprinted aluminium foil. Such foils can indude other material or be incorporated in a laminate. Preferred materials to be used indude aluminium foil with a food grade varnish and a three layer laminate comprising an outer layer of polypropylene, a middle layer of aluminium foil and an inner layer of polyethylene.
  • the sheets 42 can be provided in a stad (not shown) or can be cut by the machine. In the embodiment illustrated a roll 44 of sheet material is run over rollers 46 to straighten the material and is then cut to length by a cutter 48. The cut sheets 42 are placed in trays 34, 36 for mould impressing.
  • the sheets are thai transported sequentially through the machine through six stations 50, 52, 54, 56 58 and 60.
  • Station 50 provides an initial subdivision of sheet 42 into preliminary moulds as shown in Fig. 6.
  • Fig. 6 shows that sheet 42 has been formed into three longitudinal moulds 62 by station 50. It is to be noted that the number of moulds can vary depending on requirements.
  • Station 50 indudes an outer support frame 64 from which depends a stationary box frame 66 having a divider 68 intermediate its length.
  • a biasing means 70 Secured to divider 68 is a biasing means 70, preferably pneumatically controlled or spring tensioned, with a piston rod 72 passing through an aperture in divider 68.
  • biasing means 70 is an air spring.
  • Piston rod 72 is attached to a plate member 74 having two longitudinal parallel depending dividers 76, 78. Each divider 76, 78 terminates in a roller 80.
  • Dividers 76, 78 form a telescopic relationship with box frame 66.
  • Centrally located along plate member 74 is a pair of parallel flanges 82 which constrain a longitudinal clamping member 84.
  • Clamping member is spring loaded by springs 86 and terminates with a bumper 88.
  • the movable part of station 50 comprises a base member 90 on which are mounted male moulds 92.
  • the moulds 92 are separated by gaps 94 which gaps are aligned with dividers 76, 78.
  • Base member 90 is attached to a redprocating piston 96. Moulds 92 can, in use, protrude through apertures 98 of template 40.
  • rollers 80 will abut template 40 and form a flattened area which subdivides the moulds formed in the sheet. Further upward movement of piston 96 forces the free ends of box frame 66 to contact template 40 to finalize the moulding of sheet 42. This position is shown in Fig. 4. Fig. 4 shows that male moulds 92 have impressed into sheet 42 the mould shapes shown in Hg. 6. It will be noted that the height of the moulds 62 formed in sheet 42 can be varied by changing the thickness of template 40. The formation of moulds 62 is from the centre and outwardly therefrom in opposing directions. This results in less stress being applied to sheet 42 and a uniform 'movement of the sheet over moulds 92. Once moulds 62 have been formed the procedure is reversed. Tray 28 is then moved to station 52.
  • Station 52 is very similar to station 50 and similar integers have been referenced with the same reference numerals and an "A" suffix. The differences are that male moulds 92 have been subdivided transversely to form fifteen (15) male moulds 92A i.e. a grid of 5 x 3. Again it must be emphasized that the grid can be increased or decreased depending on requirements. From Figs. 7 and 8 it is shown that dividers 76A, 78A are transverse to the direction of dividers 76, 78 of station 50. To provide the increase in subdivision, further dividers 100, 102 depend from plate member 104. Plate member 104 is supported by two biasing means 106, 108 similar to biasing means 70 of station 50. Fig.
  • FIG. 8 dearly shows the telescopic nature of the dividers 76A, 78A, 100, 102 with box frame 66A.
  • the further dividers 100, 102 terminate with rollers 110.
  • Winglets 112 are attached to the free ends of box frame 66A and dividers 76A, 78A, 100, 102 and are aligned with the longitudinal gaps formed between moulds 62 shown in Fig. 6. The winglets will assist in location and guidance of the dividers in further subdivision of sheet 42.
  • station 52 Operation of station 52 is identical to that described in relation to station 50. Again, the telescopic nature of the dividers allows for a smooth sequential subdivision of moulds 62 into the moulds 114 as shown in Hg. 10.
  • the moulds 114 are formed from the centre and outwardly therefrom in opposing directions.
  • the further subdivided sheet 42 is passed through to station 54.
  • Station 54 is very similar to stations 50 and 52 and similar reference numerals have been used for similar integers with the suffix "B".
  • the differences between station 52 and station 54 are that male moulds 92B are shaped with almost the final desired shape.
  • Dividers 76A, 78A, 100 and 102 have been replaced by the female moulds 116 and clamping member 88A has been replaced by a female mould 118.
  • Additional female moulds 120 are also secured to the inner walls of box frame 66B.
  • the moulds 116, 118 and 120 are solid and telescopic in nature and operated in a similar manner as the dividers in station 50, 52.
  • Fig. 14 shows the completion of the formation of the almost completed mould shapes.
  • Sheet 42 then moves to station 56.
  • Station 56 impresses the final mould shapes into sheet 42.
  • Blades 126 are located in a block 128 and co-operate with a spring loaded pressure pad 130. Blades 126 can be in any desired formation for completely severing sheet 42 into individual moulds. The sheet 42 need not be severed as it can be used directly in a spinning frame.
  • a suction lifting mechanism 132 removes the formed sheet 42 from trays 28 and places them on a nested stack 134.
  • the invention has many advantages over the prior art. As a plurality of moulds can be pressed simultaneously the moulds can be different. The speed of operation is significantly increased and four-fold increases in production can be expected. The smooth movement of the sheet over the male moulds decreases the rejection rate of moulded sheets and reduces the downtime during production runs. From the foregoing it will be understood that the shaped-foil blanks formed by the method and apparatus of the invention are especially suitable for the production of foil-encased hollow artides such as hollow chocolate eggs or hollow chocolate rabbits or other such hollow chocolate novelties.
  • said shaped-foil blanks are suitable for the packaging of a wide range of other products such as confectionery for human consumption; ice cream; food industry goods; cosmetics and toiletries; pet products, such as confectionery not for human consumption; garden products; sporting goods; hobbies; automotive products; fashion gift products; hardware products; toys; agricultural products; convenience packs; promotional products such as for pop concerts, sporting events, and the like; souvenirs; and travel goods.
  • stations 50, 52, 54, 56 have movable pistons 96, 96A, 96B, 96C for controlling the mould forming operations.
  • Fig. 16 illustrates a second embodiment where box frame 130 re ⁇ procates vertically through a piston-cylinder arrangement 132.
  • Fig. 16 shows the equivalent of station 50 of the first embodiment. The operation of the embodiment shown in Fig. 16 is fairly similar to that previously described and will not be further described.
  • FIG. 17 shows variations of moulds that can be produced by the present invention.
  • the blank 134 shown in Fig. 17 can be obtained by omitting station 50 and replacing male moulds 92A of station 52 with male moulds similar to those at station 50 but having longitudinal directions transverse to those shown at station 50.
  • the male moulds 92B, 92C will have the shapes shown in blank 136 of Fig. 18.
  • Station 56 may also be omitted if the desired stiffening of the final moulded sheet is not required.

Abstract

Le procédé et l'appareil décrits servent à fabriquer des ébauches de formes tridimensionnelles (136) pour l'enveloppement d'articles, en particulier de spécialités de chocolats. L'appareil utilise un premier poste de pressage (5) servant à subdiviser une feuille (42) en une pluralité de moules (62) et un second poste (54) de formation des moules finals coïncidant avec la pluralité des moules (62). Les postes (50, 54) comportent des éléments de serrage (84, 84B) servant à assurer un alignement précis des moules.
EP19900908174 1989-05-30 1990-05-30 Method and apparatus for the fabrication of 3-dimensional blanks Withdrawn EP0474679A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPJ443389 1989-05-30
AU4433/89 1989-05-30
AU57271/90A AU638255B2 (en) 1989-05-30 1990-05-30 Method and apparatus for the fabrication of 3-dimensional blanks

Publications (2)

Publication Number Publication Date
EP0474679A1 true EP0474679A1 (fr) 1992-03-18
EP0474679A4 EP0474679A4 (en) 1993-02-17

Family

ID=25631587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900908174 Withdrawn EP0474679A4 (en) 1989-05-30 1990-05-30 Method and apparatus for the fabrication of 3-dimensional blanks

Country Status (2)

Country Link
EP (1) EP0474679A4 (fr)
WO (1) WO1990014993A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5904643A (en) * 1997-06-13 1999-05-18 Tenneco Packaging Tray-forming and apparatus
JP2001524403A (ja) 1997-12-03 2001-12-04 ピアレス マシーン アンド トゥール コーポレイション 加圧紙カットインプレス・ダイ
FR2796617B1 (fr) * 1999-07-19 2001-09-21 Jacquot Procede et machine a emballer des sujets, notamment des poules en chocolat
DE102021110679A1 (de) * 2021-04-27 2022-10-27 Multivac Sepp Haggenmüller Se & Co. Kg Herstellen eines verpackungsbehälters aus faserhaltigem material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510024A (en) * 1940-03-27 1950-05-30 Mayer Eugene Means for corrugating metal sheets
US3748889A (en) * 1971-11-29 1973-07-31 Caterpillar Tractor Co Apparatus for deforming sheet material
GB2136336A (en) * 1983-03-11 1984-09-19 Precision Tool & Gauge Sheet Metal Pallets

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1586255B2 (de) * 1967-11-11 1977-04-21 Wilhelm Rasch KG, Spezial maschinenfabrik, 5000 Köln Vorrichtung zum anbringen einer eng anliegenden umhuellung aus metallfolien um formkoerper, beispielsweise der schokoladen- oder suesswarenindustrie
DE2656758C3 (de) * 1976-12-15 1980-10-30 Guenther Dr.-Ing. 5927 Erndtebrueck Kaupert Verfahren und Vorrichtung zum mehrstufigen Entformen von Näpfen in ein schrittweise vorgeschobenes, dünnes Metallband
JPS5839691B2 (ja) * 1978-03-08 1983-08-31 三菱重工業株式会社 成形充填包装機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2510024A (en) * 1940-03-27 1950-05-30 Mayer Eugene Means for corrugating metal sheets
US3748889A (en) * 1971-11-29 1973-07-31 Caterpillar Tractor Co Apparatus for deforming sheet material
GB2136336A (en) * 1983-03-11 1984-09-19 Precision Tool & Gauge Sheet Metal Pallets

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9014993A1 *

Also Published As

Publication number Publication date
EP0474679A4 (en) 1993-02-17
WO1990014993A1 (fr) 1990-12-13

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