GB2418907A - Perforated metal foil container and apparatus and method for making same - Google Patents

Perforated metal foil container and apparatus and method for making same Download PDF

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Publication number
GB2418907A
GB2418907A GB0422124A GB0422124A GB2418907A GB 2418907 A GB2418907 A GB 2418907A GB 0422124 A GB0422124 A GB 0422124A GB 0422124 A GB0422124 A GB 0422124A GB 2418907 A GB2418907 A GB 2418907A
Authority
GB
United Kingdom
Prior art keywords
sheet
container
metal foil
perforated
perforate
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Withdrawn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
GB0422124A
Other versions
GB0422124D0 (en
Inventor
Philippe Retout
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.)
NICHOLL FOOD PACKAGING Ltd
Original Assignee
NICHOLL FOOD PACKAGING 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 NICHOLL FOOD PACKAGING Ltd filed Critical NICHOLL FOOD PACKAGING Ltd
Priority to GB0422124A priority Critical patent/GB2418907A/en
Publication of GB0422124D0 publication Critical patent/GB0422124D0/en
Publication of GB2418907A publication Critical patent/GB2418907A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B3/00—Parts or accessories of ovens
    • A21B3/15—Baking sheets; Baking boards
    • A21B3/155—Baking sheets; Baking boards of wire or mesh wire material
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/01—Vessels uniquely adapted for baking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • 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
    • 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
    • B65D2205/00—Venting means
    • B65D2205/02—Venting holes
    • 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
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3401—Cooking or heating method specially adapted to the contents of the package
    • B65D2581/3402—Cooking or heating method specially adapted to the contents of the package characterised by the type of product to be heated or cooked
    • B65D2581/3405—Cooking bakery products
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/343—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated in a conventional oven, e.g. a gas or electric resistance oven
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/36—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for bakery products, e.g. biscuits

Abstract

A perforated metal foil container (1) produced from metal foil sheet is formed with a base (2) and an upstanding wall (3), both of which being provided with a multitude of perforations (5). This is achieved by drawing the foil as a strip off a roll and perforating the strip across its width prior to passing it into a press and die (12, 13) cutting out and forming the container (2) without splitting the perforated side walls. The invention is particularly applicable to aluminium food containers, where the perforated side walls will allow moisture to escape during baking to reduce bake-time and improve product quality. An apparatus to produce the container and a method of making the container are also disclosed.

Description

1 2418907
PERFORATED METAL FOIL CONTAINER
-
AND APPARATUS AND METHOD FOR MAKING SAME
_
This invention relates to a perforated metal foil s tray or other container and to an apparatus and a method for making same.
Metal foil containers are well-known, especially aluminium foil containers for food.
For pre-cooked products, aluminium foil trays and containers are known, in which the base is perforated to allow the escape of moisture from the food product during baking, i.e. pastry-based products such as quiches and pies. The known method of perforating the base of the foil tray is carried out by means of lancing pins fitted within the standard tooling. Previous attempts to produce perforation of the side walls of the tray or container have not been achieved without failure of the foil tray, for example by splitting the side walls.
However, it is desirable to produce a container with a perforated side wall in order to allow moisture to escape from the container side wall as well as the base, thus further improving the bake-off. The intention is to reduce bake-time and also to improve product quality.
According to one aspect of the present invention, there is provided a perforated metal foil container, the container having been produced from metal foil sheet and being formed with a base and an upstanding wall surrounding the base, both the base and the wall being perforated.
Preferably, the metal foil is aluminium foil.
Preferably, the size of each perforation is 0.2mm. to 0.3mm. but dependent on foil thickness, container size and the shape of the container, the range could be between 0.2mm and 1.Omm. The preferred pitch between perforations is of substantially 3mm., with a range of 2.Omm. to 6.Omm.
Preferably, the perforations in the metal foil sheet JO have been made by a rotary piercing roll. Another possibility would be to perforate the sheet by an lutermittently-acting punching tool. A further option would be to produce the perforations using a laser cutting system.
According to a second aspect of the present invention, there is provided an apparatus for making perforated metal foil containers from metal foil sheet, the apparatus including means to perforate the sheet so that, when the sheet is subsequently passed through a press with a container-forming die, the die causes the container to include a base and an upstanding wall surrounding the base, both the base and the wall being perforated.
Preferably, the means to perforate the sheet is in the form of two rolls, through a nip between which rolls the sheet can pass, one of the rolls having means to perforate the sheet.
The means to perforate the sheet may be in the form of perforating spikes. The profile of each spike may be conical or pyramidal.
Instead of a perforating roll, the means to perforate the sheet could be an intermittently-acting punching tool or laser cutting apparatus.
The apparatus may include, at an upstream end, means to support a roll of metal foil to be supplied to the apparatus. Downstream of that may be a device for pulling metal foil from the supply roll and to accumulate the foil prior to feeding to the means to perforate the sheet.
lo Alternatively, this means could be incorporated in the pulling and accumulating device.
In the case where the means to perforate the sheet is in the form of the two rolls, the other roll, not carrying the means to perforate the sheet, may have a resilient and/or penetrable rolling surface. Such a surface may be of soft paper or of rubber.
The roll having means to perforate the sheet may be a hard metal roll, such as of steel, incorporating the perforating spikes.
A conveyor and stacking arrangement for the perforated containers produced by the apparatus is located downstream of the press and forming die.
According to a third aspect of the present invention, there is provided a method for producing a perforated metal foil container from metal foil sheet, the method including forming the container with a base and an upstanding wall surrounding the base and perforating the sheet in such a way that both the base and the wall are perforated.
The method of perforating the metal foil sheet can be by passing the sheet through a nip between two rolls, prior to passing the sheet through a press with a container-forming die, one of the rolls having means to perforate the sheet. Instead, the metal sheet may be perforated using an intermittent punching tool or laser cutting apparatus, prior to passing the sheet through a press with a container-forming die.
Preferably, the preferred perforation size is 0.2mm.
to 0.3mm. but dependent on foil thickness, container size and shape, the range may be between 0.2mm. and l.Omm. The preferred pitch between perforations is substantially 3mm., with a range of 2.Omm. to 6.00mm.
The invention also extends to a perforated metal foil tray or container produced by the method as essentially defined above.
For a better understanding of the invention and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Fig. l is a plan view of the perforated metal foil tray container, Fig. 2 is an enlarged diagrammatic side view of part of a side wall of the container shown in Fig. l, Fig. 3 is a diagrammatic cross-sectional view of part of the base and side wall of the container, and Fig. 4 is a diagrammatic view of an apparatus for making the perforated metal foil container.
Referring to the drawings, the metal foil container is an aluminium foil container l with a base 2 and an upstanding side wall 3. The end of the side wall 3 remote from the base 2 terminates in a surrounding rim or bead 4.
The base 2, side wall 3 and rib or bead 4 are all provided with a multitude of perforations 5 (diagrammatically illustrated in Fig. l by the speckled effect shown).
The base of the container l may be provided in known manner with ridges and/or grooves 6.
Fig. 4 shows an example of the apparatus for making the perforated metal foil containers l from aluminium foil sheet.
At an upstream end of the apparatus is provided a support means 7 for supporting a strip of sheet 8 of metal foil such as aluminium foil.
A device 9 is provided downstream of the roll of foil to pull the foil off the roll and accumulate it prior to it being fed to a means to perforate the sheet.
In the form illustrated, this perforating means includes, upstream of a container forming apparatus, a metal perforating roll lO with perforating spikes and a parallel "soft" roll ll having a rolling surface of, for example, paper or rubber.
Instead of the arrangement shown, the rolls 10 and 11 could be traditional feeding rolls and the perforating means could be incorporated within the pulling and accumulating device 9.
The alumluium foil strip or sheet is passed between the nip between the rollers 10 and 11 to the container forming apparatus in the form of a press 12 having a forming die 13.
So, the perforated foil strip or sheet 8, on being fed into the forming die 13, is cut and formed into a tray 1 in one operation and then ejected from the press 12 for packing.
The formed containers 1 are conveyed to a stacker 14, whilst the off-cut material 15 is led away from the apparatus.
It will be appreciated that with the present apparatus, the piercing rolls perform both the functions of feeding the foil into the container or tray forming die 13, whilst at the same time perforating the entire surface of the plain aluminium foil strip or sheet 8.

Claims (31)

  1. CLAIMS: 1. A perforated metal foil container, the container having been
    produced from metal foil sheet and being formed with a base and an upstanding wall surrounding the base, both the base and the wall being perforated.
  2. 2. A container according to claim 1, wherein the lo metal foil is aluminium foil.
  3. 3. A container according to claim 1 or 2, wherein the size of each perforation is between 0.2mm. and 1.Omm.
  4. 4. A container according to claim 3, wherein the size of each perforation is between 0.2mm. and 0.3mm.
  5. 5. A container according to any one of the preceding claims, wherein the pitch between perforations is within a range between 2.Omm. and 6.Omm.
  6. 6. A container according to claim 5, wherein the pitch between perforations is substantially 3. Omm.
  7. 7. A container according to any one of the preceding claims, wherein the perforations in the metal foil sheet have been made by a rotary piercing roll, by an intermittently-acting punching tool or a laser cutting system.
  8. 8. A perforated metal foil container, substantially as hereinbefore described, with reference to the accompanying drawings.
  9. 9. An apparatus for making perforated metal foil containers from metal foil sheet, the apparatus including means to perforate the sheet so that, when the sheet is subsequently passed through a press with a container forming die, the die causes the container to include a base and an upstanding wall surrounding the base, both the base and the wall being perforated.
  10. 10. An apparatus according to claim 9, wherein the JO means to perforate the sheet is in the form of two rolls, through a nip between which rolls the sheet can pass, one of the rolls having means to perforate the sheet.
  11. 11. Apparatus according to claim 10, wherein the other roll, not having the means to perforate the sheet, has a resilient and/or penetrable rolling surface.
  12. 12. An apparatus according to claim 11, wherein the rolling surface is made of rubber or paper.
  13. 13. An apparatus according to claim 10, 11 or 12, wherein said one roll is of hard metal.
  14. 14. An apparatus according to any one of claims 9 to 13, wherein the means to perforate the sheet is in the form of perforating spikes.
  15. 15. An apparatus according to claim 14, wherein the profile of each spike is conical or pyramidal.
  16. 16. An apparatus according to claim 9 or 14 or 15 as appendant to claim 9, wherein the means to perforate the sheet is an intermittently-acting punching tool.
  17. 17. An apparatus according to claim 9, wherein the means to perforate the sheet is a laser cutting apparatus.
  18. 18. An apparatus according to any one of claims 9 to 17, and including, at an upstream end, means to support a roll of metal foil to be supplied to the apparatus.
    JO
  19. 19. An apparatus according to claim 18, and including, downstream of said means to support the roll of metal foil, a device for pulling metal foil from the supply roll and to accumulate the foil prior to feeding it to means to perforate the sheet.
  20. 20. An apparatus according to claim 19, wherein the means to perforate the sheet is incorporated within the device for pulling and accumulating the foil.
  21. 21. An apparatus according to any one of claims 9 to 20, wherein a conveyor and stacking arrangement for the perforated containers produced by the apparatus is located downstream of the press and forming die.
  22. 22. An apparatus for making perforated metal foil containers from metal foil sheet, substantially as hereinbefore described, with reference to the accompanying drawings.
  23. 23. A method for producing a perforated metal foil container from metal foil sheet, the method including forming the container with a base and an upstanding wall surrounding the base and perforating the sheet in such a way that both the base and the wall are perforated.
  24. 24. A method according to claim 23, wherein the sheet is passed through a nip between two rolls, prior to passing the sheet through a press with a container- forming die, one of the rolls having means to perforate the sheet.
  25. 25. A method according to claim 23, wherein the sheet is perforated using an intermittent punching tool or laser cutting apparatus, prior to passing the sheet JO through a press with a container-forming die.
  26. 26. A method according to claim 23, 24 or 25, wherein the perforation size is between 0.2mm. and 1.Omm.
  27. 27. A method according to claim 26, wherein the perforation size is between 0.2mm. and 0.3mm.
  28. 28. A method according to any one of claims 23 to 27, wherein the pitch between perforations is between 2.Omm. and 6.Omm.
  29. 29. A method according to claim 28, wherein the pitch between perforations is substantially 3mm.
    2s
  30. 30. A method for producing a perforated metal foil container, substantially as hereinbefore described, with reference to the accompanying drawings.
  31. 31. A perforated metal foil container produced by the method according to any one of claims 23 to 30.
GB0422124A 2004-10-06 2004-10-06 Perforated metal foil container and apparatus and method for making same Withdrawn GB2418907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0422124A GB2418907A (en) 2004-10-06 2004-10-06 Perforated metal foil container and apparatus and method for making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0422124A GB2418907A (en) 2004-10-06 2004-10-06 Perforated metal foil container and apparatus and method for making same

Publications (2)

Publication Number Publication Date
GB0422124D0 GB0422124D0 (en) 2004-11-03
GB2418907A true GB2418907A (en) 2006-04-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0422124A Withdrawn GB2418907A (en) 2004-10-06 2004-10-06 Perforated metal foil container and apparatus and method for making same

Country Status (1)

Country Link
GB (1) GB2418907A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103084467A (en) * 2011-10-28 2013-05-08 苏州工业园区隆盛电器成套设备制造有限公司 Cutting process of silicon steel sheets of transformers for railway vehicles
WO2020053430A1 (en) * 2018-09-13 2020-03-19 Mecatherm Support tray device for bakery or similar products for transporting them on a production line
CN111497317A (en) * 2020-05-28 2020-08-07 李奉喜 Manufacturing method of disposable food-grade aluminum foil tin paper lunch box
EP3808552A1 (en) * 2019-10-17 2021-04-21 Cuki Cofresco S.r.l. Method and apparatus for manufacturing microperforated aluminum trays for foodstuff

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112893620A (en) * 2021-03-22 2021-06-04 东营市倍思特机床设备有限公司 Automatic lunch box production system and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372566A (en) * 1931-05-19 1932-05-12 Harry Dean Improvements in baking tins
GB482247A (en) * 1936-09-22 1938-03-25 Wilhelm Kopmann Improvements in bakers' moulds
GB956710A (en) * 1960-08-08 1964-04-29 Reynolds Metals Co Manufacture of food container and the like from aluminum foil or other thin metallic material
US4176591A (en) * 1978-04-10 1979-12-04 Power Douglas P Cooking pan for baking pizza pies and like food products
US5117078A (en) * 1990-02-02 1992-05-26 Beckett Industries Inc. Controlled heating of foodstuffs by microwave energy
GB2262217A (en) * 1991-12-10 1993-06-16 George Wilkinson A method of cooking food products using a perforated dish or plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372566A (en) * 1931-05-19 1932-05-12 Harry Dean Improvements in baking tins
GB482247A (en) * 1936-09-22 1938-03-25 Wilhelm Kopmann Improvements in bakers' moulds
GB956710A (en) * 1960-08-08 1964-04-29 Reynolds Metals Co Manufacture of food container and the like from aluminum foil or other thin metallic material
US4176591A (en) * 1978-04-10 1979-12-04 Power Douglas P Cooking pan for baking pizza pies and like food products
US5117078A (en) * 1990-02-02 1992-05-26 Beckett Industries Inc. Controlled heating of foodstuffs by microwave energy
GB2262217A (en) * 1991-12-10 1993-06-16 George Wilkinson A method of cooking food products using a perforated dish or plate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103084467A (en) * 2011-10-28 2013-05-08 苏州工业园区隆盛电器成套设备制造有限公司 Cutting process of silicon steel sheets of transformers for railway vehicles
WO2020053430A1 (en) * 2018-09-13 2020-03-19 Mecatherm Support tray device for bakery or similar products for transporting them on a production line
FR3085822A1 (en) * 2018-09-13 2020-03-20 Mecatherm SUPPORT PLATE DEVICE FOR BAKERY PRODUCTS OR THE LIKE FOR THEIR TRANSPORT ON A PRODUCTION LINE
EP3808552A1 (en) * 2019-10-17 2021-04-21 Cuki Cofresco S.r.l. Method and apparatus for manufacturing microperforated aluminum trays for foodstuff
CN111497317A (en) * 2020-05-28 2020-08-07 李奉喜 Manufacturing method of disposable food-grade aluminum foil tin paper lunch box
CN111497317B (en) * 2020-05-28 2021-08-03 上海绚阳铝箔制品东台有限公司 Manufacturing method of disposable food-grade aluminum foil tin paper lunch box

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