EP3434607B1 - Cooling holes for film wrapped articles - Google Patents
Cooling holes for film wrapped articles Download PDFInfo
- Publication number
- EP3434607B1 EP3434607B1 EP18185457.1A EP18185457A EP3434607B1 EP 3434607 B1 EP3434607 B1 EP 3434607B1 EP 18185457 A EP18185457 A EP 18185457A EP 3434607 B1 EP3434607 B1 EP 3434607B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- bundle
- opening
- wrapped
- process according
- 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.)
- Active
Links
Images
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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/02—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for perforating, scoring, slitting, or applying code or date marks on material prior to packaging
-
- 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
- B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
- B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
- B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets
- B65B53/063—Tunnels
-
- 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
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/08—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for heating or cooling articles or materials to facilitate packaging
-
- 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
- B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
- B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
- B65D71/08—Wrappers shrunk by heat or under tension, e.g. stretch films or films tensioned by compressed articles
-
- 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
- B65B2220/00—Specific aspects of the packaging operation
- B65B2220/24—Cooling filled packages
Definitions
- This invention relates to cooling or freezing an article or a bundle of articles after the article has been filmed wrapped and heat shrunk.
- the term article refers to a bundle of articles such as bottles or a single article. These articles are perishable and require a cooled environment.
- the prior art (s. e.g. EP 0 879 770 ) has placed articles in cartons, having holes in the carton, to allow cold air to circulate in the carton during the freezing or cooling of the articles.
- This technique of cutting holes in the heat shrink film for air circulation of the article has been tried without success. Cutting the holes mechanically with an heated die or heat while the heat shrink material is moving resulted in hole sizes of less than about 3/8 inch.
- the prior art was in need of a commercial viable way of creating openings large enough to allow sufficient air circulation to cool or freeze articles wrapped with a heat shrunk film.
- the wrapped article is transported to a freezer or cooler 7 to prevent spoilage of the contents within the bundle.
- the heat shrunk bundle can be bundled or palletized prior to entering the freezer or cooler.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Packages (AREA)
Description
- This invention relates to cooling or freezing an article or a bundle of articles after the article has been filmed wrapped and heat shrunk. The term article refers to a bundle of articles such as bottles or a single article. These articles are perishable and require a cooled environment.
- The prior art (s. e.g.
EP 0 879 770 ) has placed articles in cartons, having holes in the carton, to allow cold air to circulate in the carton during the freezing or cooling of the articles. This technique of cutting holes in the heat shrink film for air circulation of the article has been tried without success. Cutting the holes mechanically with an heated die or heat while the heat shrink material is moving resulted in hole sizes of less than about 3/8 inch. The prior art was in need of a commercial viable way of creating openings large enough to allow sufficient air circulation to cool or freeze articles wrapped with a heat shrunk film. - The prior art, shown in
US Patent Application number 13/972,078 filed on August 21, 2013 -
-
Figure 1 shows afilm 1 moving between a set ofrollers Adjustable blade 7 onpivot 6 is lowered to cut a slit in the film. The location and the length of the slit is formed so that when a bundle of articles are film wrapped theslit 4 is located on the vertical sides of the bundle. -
Figure 2 shows threevertical slits 4 and threevertical slits 5 to be located on opposing vertical sides of the bundle. After film wrapping the bundle moves through a heat shrink tunnel on a conveyor where the film is heat shrunk. Within in the tunnel, the slits are opened by increasing the shrinkage of the film surrounding the slit. This can be accomplished by directing high speed jets of hot air on the slits. Openings in excess of 20-25 mm can be achieved. -
Figure 3 shows cups ofyogurt 7 having opened slits using jets of hot air. - After the film is heat shrunk, the wrapped article is transported to a freezer or
cooler 7 to prevent spoilage of the contents within the bundle. The heat shrunk bundle can be bundled or palletized prior to entering the freezer or cooler.
Claims (12)
- A process for arranging a bundle of articles wrapped with heat shrink film so that cool air can circulate through the bundle comprising,forming an opening in the film (1),film wrapping the bundle,transporting the wrapped bundle to a heat shrink tunnel,heat shrinking the bundle, characterised by the step ofincreasing the size of the opening during heat shrinking by further heating the film surrounding the opening to a temperature that increases the heat shrinkage of the film surrounding the opening.
- A process according to claim 1 wherein the opening is a slit (4, 5).
- A process according to claim 1 wherein the heat shrinkage of the film (1) is increased by directing high speed jets of hot air on the film surrounding the opening during heat shrinking of the film.
- A process according to claim 1 including cooling the film wrapped article to prevent spoilage.
- A process according to claim 2 wherein the slit (4, 5) is located on a vertical side of the bundle.
- A process according to claim 5 including multiple vertical slits (4, 5) located on opposing vertical sides of the bundle.
- A process according to claim 2 wherein high speed jets of hot air are directed on the slit during heat shrinking of the film.
- An apparatus for arranging an article or a bundle of articles wrapped with heat shrink film so that cool air can circulate through the bundle comprising,means for forming an opening in the film (1),means for locating the opening (4, 5) so that the opening is positioned on the vertical sides of the bundle during film wrapping,means for film wrapping the bundle,means for transporting the wrapped bundle to a heat shrink tunnel,means for heat shrinking the bundle, characterised bymeans for increasing the size of the opening during heat shrinking by further heating the film surrounding the opening to a temperature that increases the heat shrinkage of the film surrounding the opening.
- An apparatus according to claim 8 including means (7) for cooling the film wrapped article to prevent spoilage.
- An apparatus according to claim 8 wherein the means for forming an opening forms a slit (4, 5).
- An apparatus according to claim 10 including means for forming multiple vertical slits on opposing vertical sides of the bundle.
- An apparatus according to claim 10 or 11 further including means for directing high speed jets of hot air on the slits during heat shrinking of the film.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/660,507 US20190031382A1 (en) | 2017-07-26 | 2017-07-26 | Cooling Holes for Film Wrapped Articles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3434607A1 EP3434607A1 (en) | 2019-01-30 |
EP3434607B1 true EP3434607B1 (en) | 2020-04-01 |
Family
ID=63173935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18185457.1A Active EP3434607B1 (en) | 2017-07-26 | 2018-07-25 | Cooling holes for film wrapped articles |
Country Status (2)
Country | Link |
---|---|
US (1) | US20190031382A1 (en) |
EP (1) | EP3434607B1 (en) |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3131810A (en) * | 1958-11-07 | 1964-05-05 | Grace W R & Co | Packaging |
US3400810A (en) * | 1966-09-28 | 1968-09-10 | Alexander G. Makowski | Package and packaging method |
US3545165A (en) * | 1968-12-30 | 1970-12-08 | Du Pont | Packaging method and apparatus |
US3600871A (en) * | 1969-09-09 | 1971-08-24 | Reynolds Metals Co | Method of making package construction for plurality of articles |
JPS5327276Y2 (en) * | 1973-03-23 | 1978-07-11 | ||
DE2331861A1 (en) * | 1973-06-22 | 1975-01-16 | Hesser Ag Maschf | DEVICE FOR SHRINKING COVERS MADE OF SHRINKABLE FILM, PLACED AROUND OBJECTS |
US4011122A (en) * | 1974-04-25 | 1977-03-08 | Owens-Illinois, Inc. | Method for producing plastic-covered containers |
US4130201A (en) * | 1976-10-19 | 1978-12-19 | Ganz Brothers, Inc. | Shrink wrap container package |
CA1089700A (en) * | 1977-08-25 | 1980-11-18 | David W. Clark | Self-sustaining stick of shirred casing |
US5067612A (en) * | 1989-01-26 | 1991-11-26 | Honshu Sangyou Kabushiki Kaisha | Shrink film package having perforated folded strip |
SG59941A1 (en) * | 1991-07-30 | 1999-02-22 | Okura Industrial Co Ltd | Thermally shrunk package |
US5400570A (en) * | 1993-05-17 | 1995-03-28 | Bennett; Charles J. | Method and apparatus for heat shrinking film around a product |
US5667071A (en) * | 1994-08-31 | 1997-09-16 | Fuji Photo Film Co., Ltd. | Photosensitive material package and packaging apparatus for the same |
US5771662A (en) * | 1996-06-28 | 1998-06-30 | Douglas Machine Limited Liability Company | Apparatus and methods for producing shrink wrap packaging |
US5992630A (en) * | 1997-05-21 | 1999-11-30 | Lever Brothers Company | Shrink wrap package |
DE19803244C2 (en) * | 1998-01-28 | 2003-04-24 | Kurt Lachenmeier As Sonderborg | Method and device for packaging a good |
WO2001032527A1 (en) * | 1999-11-02 | 2001-05-10 | Matsushita Electric Industrial Co., Ltd. | Package of cylindrical article and production method therefor |
CN1473125A (en) * | 2000-11-01 | 2004-02-04 | 基斯特斯卡亚特公司 | Adaptable packaging machine heat shrink tunnel |
US20040231481A1 (en) * | 2003-05-23 | 2004-11-25 | Floding Daniel Leonard | Apparatus for perforating or slitting heat shrink film |
US7032360B2 (en) * | 2003-10-29 | 2006-04-25 | Douglas Machine, Inc. | Apparatus and methods for producing shrink wrap packaging |
EP1785357B1 (en) * | 2005-11-09 | 2011-01-05 | Sealed Air Limited | Apparatus and method for the manufacture of easy-to-open shrink sleeve wrap packages |
DE102008020522A1 (en) * | 2008-04-23 | 2009-10-29 | Krones Ag | Container with carrying handle and device and method for its production |
EP2626308A1 (en) * | 2012-02-07 | 2013-08-14 | Cryovac, Inc. | Apparatus for heat shrinking a package and method for heat shrinking a package |
US20150053698A1 (en) * | 2013-08-21 | 2015-02-26 | Alain Cerf | Cooling Film Wrapped Articles |
EP3126256B1 (en) * | 2014-04-04 | 2020-02-19 | OCME S.r.l. | Heat-shrinking furnace for the formation of bundles with improved film adhesion |
-
2017
- 2017-07-26 US US15/660,507 patent/US20190031382A1/en not_active Abandoned
-
2018
- 2018-07-25 EP EP18185457.1A patent/EP3434607B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP3434607A1 (en) | 2019-01-30 |
US20190031382A1 (en) | 2019-01-31 |
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