EP0796199A1 - Verfahren zum füllen eines verpackungsbehälters - Google Patents

Verfahren zum füllen eines verpackungsbehälters

Info

Publication number
EP0796199A1
EP0796199A1 EP95943367A EP95943367A EP0796199A1 EP 0796199 A1 EP0796199 A1 EP 0796199A1 EP 95943367 A EP95943367 A EP 95943367A EP 95943367 A EP95943367 A EP 95943367A EP 0796199 A1 EP0796199 A1 EP 0796199A1
Authority
EP
European Patent Office
Prior art keywords
container
lid
sealing
set forth
deformable portion
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
EP95943367A
Other languages
English (en)
French (fr)
Other versions
EP0796199B1 (de
EP0796199A4 (de
Inventor
Masamichi Kaneko
Hidetoshi Konno
Junichi Satoyoshi
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
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 Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Publication of EP0796199A1 publication Critical patent/EP0796199A1/de
Publication of EP0796199A4 publication Critical patent/EP0796199A4/de
Application granted granted Critical
Publication of EP0796199B1 publication Critical patent/EP0796199B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles

Definitions

  • This invention relates to a method of filling a packaging container.
  • a filling apparatus of a rotary type is generally used for this purpose.
  • Such filling apparatus include a turntable on which the container is placed and is displaced by rotation of the turntable.
  • the filling apparatus also includes a charging station and a sealing station.
  • a liquid food is charged in the container through a top opening of the container.
  • the top end of the container is sealed with a lid.
  • the container on the turntable after having been filled with the liquid food in the charging station, is displaced to the sealing station with the top end remaining opened.
  • the pressure inside the container is increased by the liquid food which is urged to overflow.
  • the resin forming the container is often melted so that the volume of the container is reduced. This also results in the increase of the internal pressure of the container. As a consequence, great forces are imposed on the sealed portion and the rest of the container.
  • a liquid food is charged in a container formed of a resin, the container having an opening at a top end thereof and a deformable portion in a wall thereof such that the inside volume thereof can be adjusted, a lid is placed on the top end of the container, and a sealing device is lowered from a position above the lid to seal the upper end of the container with the lid.
  • the deformable portion of the container is deformed to elevate the surface of the liquid food to a level adjacent to the top end of the container.
  • the container according to the present invention When the container according to the present invention is disposed at a filling station of a turntable and is filled with, e.g. , a liquid food, and the deformable portion has not been deformed to decrease the volume of the container, e.g. , by pushing upward on a deformable portion in a bottom portion of the container, a space is defined between the liquid level of the liquid food and the top end of the container.
  • the container is then displaced on the turntable to a sealing station where the top end of the container is sealed with the lid. Since the space defined between the liquid level of the liquid food and the top end of the container is retained during the displacement of the container from the filling station to the sealing station, the liquid food does not overflow from the opening by vibration, etc. even when the turntable is rotated at a relatively high speed. As a consequence, the overall filling operation can be performed at a high speed.
  • the deformable portion In the sealing stage, the deformable portion is deformed, e.g. , pushed upward. and thereby elevates the level of the liquid food to a level adjacent to the top end of the container, and is also urged in the opposite direction, e.g.. downward, as the container is sealed with the lid.
  • the deformable portion since a negative pressure is created in the container, the deformable portion is maintained in the deformed position, e.g. , the bottom portion is maintained in the upwardly displaced position.
  • the negative pressure in the container is lost so that the deformable portion is moved to the undeformed position, e.g., the bottom portion is moved to a lowered position.
  • whether the container is properly sealed can be determined by checking whether or not the deformable portion is in the deformed position, e.g., the bottom portion is in the upwardly displaced position. Further, the creation of the negative pressure in the container can prevent an excessive force to be applied to the sealed portion and to the container upon the sealing of the lid to the container, such as where resins are fused.
  • FIG. 1 is a perspective view of a step of sealing a container with a lid according to a first embodiment of the present invention
  • FIG. 2 is an exploded, perspective view of a packaging container according to an embodiment of the present invention
  • FIG. 3 is a perspective view of a packaging container according to an embodiment of the present invention.
  • FIG. 4 is a sectional view of a bottom portion of a packaging container according to an embodiment of the present invention, in which a deformable portion is formed in the bottom portion;
  • FIG. 5 is a view of a liquid food charging step according to the first embodiment of the present invention.
  • FIG. 6 is a partially sectional view of a lid setting step according to the first embodiment of the present invention
  • FIG. 7 is a partially sectional view of a first stage of the step of sealing the container with the lid according to the first embodiment of the present invention
  • FIG. 8 is a partially sectional view of a second stage of the step of sealing with the container with the lid according to the first embodiment of the present invention
  • FIG. 9 is a partially sectional view of a container according to the first embodiment of the present invention.
  • FIG. 10 is a sectional view of a bottom portion of a packaging container according to a second embodiment of the present invention.
  • FIG. 11 is a sectional view of a bottom portion of a packaging container according to a third embodiment of the present invention
  • FIG. 12 is a sectional view of a bottom portion of a packaging container according to a fourth embodiment of the present invention.
  • FIG. 13 is a sectional view of a bottom portion of a packaging container according to a fifth embodiment of the present invention.
  • FIGS. 14A-14C, 15A-15C, and 16A-16C are schematic views of steps in the method of filling a packaging container according to embodiments of the present invention in which packaging container according to different embodiments of the invention are filled.
  • FIGS. 2-4 A packaging container according to a preferred embodiment of the present invention is shown in FIGS. 2-4 and includes a container 11 that may be used for containing, e.g, a liquid food.
  • the container 11 is preferably formed of a transparent thermoplastic material having good gas barrier properties and having a cup-like shape which is open at its upper end.
  • the container 11 is preferably formed by deforming a multilayer resin sheet by a tip expanding method (Cuspation Dilation forming method) involving thermal molding of the sheet into the cup-like shape.
  • the container 11 is preferably bonded to a substantially cylindrical sleeve 12 during the tip expansion forming of the container.
  • the multilayer sheet is formed by an appropriate method such as coextrusion molding, blown film molding, etc.
  • the container 11 is preferably composed of a body portion 11a having a cylindrical cross-section, a radially outwardly extending flange portion l ib provided at an upper end of the body portion 11a and a bottom portion lie formed at a lower end of the body portion 11a.
  • the container 11 preferably has a wall provided with a deformable portion so that the inside volume thereof can be changed.
  • the bottom portion l ie includes a bellows portion PI formed at a position adjacent to the lower end of the body portion 11a and a flat portion P2 formed at a position radially inward of the bellows portion PI .
  • the inside volume of the container 11 may be changed.
  • the bellows portion PI includes curved wave forms Pla and Plb which extend obliquely such that the curved wave form on the radially inward side is positioned at a level higher than the radially outward side wave form.
  • the multilayer sheet is preferably molded after having been heated to about 180°C, which is higher than the melting point of at least one layer of the sheet. It is therefore not necessary to sterilize the container 11 before filling the liquid food therein. Further, the container 11 is not shrunk or deformed due to molecular orientation during the retort stage.
  • the thermal molding method is any suitable method such as a vacuum blow molding method or a pressure blow molding method.
  • the structure of the multilayer sheet may be, for example, as shown below:
  • PP/regenerated PP/adhesive layer/EVOH/adhesive layer/ APET amorphous polyethylene teraphthalate
  • EVA/EVOH/EVA amorphous polyethylene teraphthalate
  • PS polystyrene
  • EVOH/PE polyethylene
  • PS/EVOH/PS PS (polystyrene) /EVOH/PE(polyethylene); PS/EVOH/PS;
  • EVOH ethylene glycol
  • layer structure can improve the gas barrier property of the multilayer sheet.
  • layer structures may also be adopted: PS/PE;
  • the sleeve 12 which is preferably formed of a material having greater rigidity and a better heat insulating properties than the container 11 is preferably provided around the outer side of the container 11.
  • the sleeve 12 has a cylindrical shape and serves to retain the shape of the container 11 and to function as a heat insulator for preventing heat transfer between the liquid food contained in the container 11 and the outside atmosphere.
  • the container 11 and the sleeve 12 form a double wall structure.
  • the sleeve 12 is preferably first prepared and the container 11 is then formed by the tip expansion method within the sleeve 12.
  • the liquid food is then filled in the container 11 and the container is sealed with the lid 13.
  • the container 11 may be first formed by a thermal molding method and then be fitted into the sleeve 12.
  • the liquid food is then filled in the container 11 and the container is sealed with the lid 13.
  • the container 11 may be first formed by a thermal molding method, the liquid food may then be filled in the container 11 , the container may then be sealed with the lid 13, and the container may then be fitted into the sleeve 12.
  • the sleeve 12 is preferably formed of expanded polypropylene.
  • the diameter of pores formed by expansion is about 150 ⁇ m.
  • the expanded polypropylene may be substituted by a laminate having a polypropylene layer and an expanded polypropylene layer or by a paper material. In this case, printing may be provided on the surface of the polypropylene layer or paper material.
  • the sleeve 12 is preferably formed of a transparent material so that the liquid food contained in the container 11 can be viewed. After the liquid food has been filled in the container 11. the lid 13 is fixed on the upper surface of the flange portion 1 lb by sealing means such as heat sealing or ultrasonic sealing to seal the container 11.
  • the resin film constituting the lid member 13 is preferably molded by the coextrusion method or the blown film molding method to have a thickness of 30-50 ⁇ m.
  • the layer structure of the resin film is preferably formed by the coextrusion method may be, for example, as follows: PP/adhesive layer/ENOF/adhesive layer/PP.
  • the lid 13 may, according to another embodiment, be in the form of a transparent resin plate having a high gas barrier property.
  • a resin plate may be formed by a suitable method such as molding by a hot press method, an injection molding method or the like.
  • a pour opening 13a for pouring the liquid food contained in the container 11 therethrough is formed in a predetermined portion of the lid 13 and is sealed with a pull tab 15.
  • the pull tab 15 is preferably formed of a material having good gas barrier properties and high rigidity and tensile strength.
  • the pull tab 15 may be colored.
  • the layer structure of the pull-tab 15 may be, for example, as follows: Biaxially oriented PP/peelable adhesive layer.
  • a glossy film 16 formed of a heat- shrinkable material is preferably provided on an outer surface of the sleeve 12.
  • the film is printed with desired letters and patterns.
  • the film 16 is preferably a stretched PP film having a thickness of less than 20 ⁇ m. When prints are formed on the surface of the sleeve 12, the film is not required.
  • the packaging container has a double wall structure composed of the container 11 and the sleeve 12, however, the packaging container may be formed by the container 11 only, if desired.
  • FIG. 1 shows a step of sealing a container 11 with a lid 13 according to a first embodiment of the present invention.
  • FIG. 5 shows a liquid food charging step according to the first embodiment of the present invention.
  • FIG. 6 shows a lid setting step according to the first embodiment of the present invention.
  • FIG. 7 shows the first stage of the step of sealing the container with the lid according to the first embodiment of the present invention.
  • FIG. 8 shows the second stage of the step of sealing the container with the lid according to the first embodiment of the present invention.
  • FIG. 9 is a sectional view of a container in the first embodiment of the present invention.
  • the sleeve 12 FIG.
  • the container 11 is fed to a feeding station of a turntable (not shown) and is transferred to a charging station by the rotation of the turntable.
  • a feeding pipe 31 of a charger for feeding a measured amount of liquid food to the container 11 is disposed above the container.
  • the liquid food is preferably charged so that there is defined a space ⁇ between the liquid level and an upper end of the container 11.
  • the container is then transferred to a lid setting station where a lid applicator (not shown) operates to set a lid 13 above the container 11 as shown in FIG. 6.
  • a lid applicator (not shown) operates to set a lid 13 above the container 11 as shown in FIG. 6.
  • the container 11 is transferred to a sealing station where, as shown in FIG. 7, the lid 13 is placed on an upper edge (preferably the flange portion l ib as seen in FIG. 2) of the container 11, or the sleeve 12, if provided.
  • a sealing device 32 is disposed above the lid 13 and a pusher 33 is disposed beneath the lid 13.
  • the head space is defined in the upper part of the container so that, even when the turntable is rotated at a relatively high speed, the overflowing of the liquid food contained therein from the opening due to vibration, etc. is prevented.
  • the filling operation can be performed at a high speed.
  • the sealing device 32 is then lowered, as shown in FIGS. 1 and 8, to press the peripheral edge of the lid 13 to an upper edge of the container 11 and to seal the container 11 with the lid 13.
  • the pusher 33 is moved upward to push the flat portion P2 of the bottom portion lie of the container 11.
  • the bellows portion PI is extended to move the flat portion P2 upward, so that the liquid level of the liquid food is elevated to the upper end of the container 11.
  • the sealing device is then moved upward and the pusher 33 is moved downward, whereby the sealing of the container 11 with the lid 13 is completed as shown in FIG. 9.
  • the flat portion P2 of the bottom portion l ie is urged to move downward.
  • the flat portion P2 is maintained in the upwardly displaced position.
  • the negative pressure within the container 11 is not established so that the flat portion P2 is displaced downward. Therefore, by checking whether or not the flat portion P2 is maintained in the upwardly displaced position, it is possible to determine whether or not the sealing of the container is appropriate.
  • FIG. 10 shows a bottom portion of a packaging container of a second embodiment of the present invention
  • FIG. 11 is a sectional view of a bottom portion of a packaging container of a third embodiment of the present invention
  • FIG. 12 is a sectional view of a bottom portion of a packaging container of a fourth embodiment of the present invention
  • FIG. 13 is a sectional view of a bottom portion of a packaging container of a fifth embodiment of the present invention.
  • the bellows portion PI includes a plurality of curved wave forms Pic and Pld which extend obliquely such that the curved wave form on the radially inward side is positioned at a level slightly higher than the outward side one.
  • the position of the flat portion P2 is slightly higher than that of the lower end of a sleeve 12. Therefore, when the packaging container is placed on a table or other flat surface, there is defined a heat insulating space between the bottom portion Pic and the table.
  • the bellows portion PI includes a plurality of saw teeth wave forms Pie and Plf which extend obliquely such that the saw tooth wave form on the radially inward side is positioned at a level higher than the outward side one.
  • the bellows portion PI includes a plurality of curved wave forms Pig and Plh which extend horizontally in the radially inward direction.
  • the bellows portion PI includes a plurality of saw teeth wave forms Pli and Plj which extend obliquely such that the saw tooth wave form on the radially inward side is positioned at a level slightly higher than the outward side one.
  • FIGS. 14A-14C illustrate steps in sealing of a container 11 ' in which the container has a deformable portion 14' in the side wall.
  • FIG. 15 illustrate steps in sealing of a container 11 " in which the container has a deformable portion 14" in the side wall.
  • FIG. 16 illustrate steps in the sealing of a container 11 ' " in which the lid 13'" has a deformable portion 14' ".
  • FIGS. 14A, 15A, and 16C all involve a first step (not shown) of filling a container to a level below the top of the container at a filling station, moving the container to a sealing station where a lid is positioned above the container (FIGS. 14A, 15A, and 16A), deforming the deformable portions of the packaging containers so that the liquid level in the containers is raised (FIGS. 14B, 15B, and 16B), and sealing the lids to the containers (FIGS. 14C, 15C, and 16C).
  • the present invention is not limited to the foregoing embodiments but can be modified in various ways on the basis of the gist of the present invention. These modifications are not excluded from the scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
  • Basic Packing Technique (AREA)
EP95943367A 1994-12-05 1995-12-05 Verfahren zum füllen eines verpackungsbehälters Expired - Lifetime EP0796199B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP30104994 1994-12-05
JP30104994A JP3644992B2 (ja) 1994-12-05 1994-12-05 包装容器の充填方法
JP301049/94 1994-12-05
PCT/US1995/015751 WO1996017772A1 (en) 1994-12-05 1995-12-05 Method of filling a packaging container

Publications (3)

Publication Number Publication Date
EP0796199A1 true EP0796199A1 (de) 1997-09-24
EP0796199A4 EP0796199A4 (de) 1999-01-20
EP0796199B1 EP0796199B1 (de) 2001-02-21

Family

ID=17892250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95943367A Expired - Lifetime EP0796199B1 (de) 1994-12-05 1995-12-05 Verfahren zum füllen eines verpackungsbehälters

Country Status (5)

Country Link
EP (1) EP0796199B1 (de)
JP (1) JP3644992B2 (de)
AU (1) AU4464796A (de)
DE (1) DE69520154T2 (de)
WO (1) WO1996017772A1 (de)

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US9624348B2 (en) 2011-08-31 2017-04-18 Berry Plastic Corporation Polymeric material for an insulated container
US9688456B2 (en) 2012-12-14 2017-06-27 Berry Plastics Corporation Brim of an insulated container
US9694962B2 (en) 2011-06-17 2017-07-04 Berry Plastics Corporation Process for forming an insulated container having artwork
US9713906B2 (en) 2012-08-07 2017-07-25 Berry Plastics Corporation Cup-forming process and machine
US9725202B2 (en) 2013-03-14 2017-08-08 Berry Plastics Corporation Container
US9731888B2 (en) 2012-12-14 2017-08-15 Berry Plastics Corporation Blank for container
US9758293B2 (en) 2011-06-17 2017-09-12 Berry Plastics Corporation Insulative container
US9758655B2 (en) 2014-09-18 2017-09-12 Berry Plastics Corporation Cellular polymeric material
US9758292B2 (en) 2011-06-17 2017-09-12 Berry Plastics Corporation Insulated container
US9840049B2 (en) 2012-12-14 2017-12-12 Berry Plastics Corporation Cellular polymeric material
US9957365B2 (en) 2013-03-13 2018-05-01 Berry Plastics Corporation Cellular polymeric material
US10513589B2 (en) 2015-01-23 2019-12-24 Berry Plastics Corporation Polymeric material for an insulated container
US11091311B2 (en) 2017-08-08 2021-08-17 Berry Global, Inc. Insulated container and method of making the same

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JP3575306B2 (ja) * 1998-08-11 2004-10-13 サンスター技研株式会社 軟質容器に対する高粘調液の充填方法及び高粘調液の充填装置並びに高粘調液充填容器
JP3575289B2 (ja) * 1998-08-11 2004-10-13 サンスター技研株式会社 筒状部材の搬送システム及び高粘調液の充填システム
DE10129452A1 (de) * 2001-06-19 2003-01-09 Bosch Gmbh Robert Verfahren zum Befüllen von im wesentlichen zylinderförmigen Ampullen
US9394072B2 (en) 2003-05-23 2016-07-19 Amcor Limited Hot-fill container
US6942116B2 (en) * 2003-05-23 2005-09-13 Amcor Limited Container base structure responsive to vacuum related forces
US9751679B2 (en) 2003-05-23 2017-09-05 Amcor Limited Vacuum absorbing bases for hot-fill containers
US8276774B2 (en) 2003-05-23 2012-10-02 Amcor Limited Container base structure responsive to vacuum related forces
DE102008026244A1 (de) * 2008-05-30 2009-12-03 Krones Ag Verfahren zum Befüllen von Kunststoffflaschen und Flaschenfüller für Kunststoffflaschen
JP4977168B2 (ja) * 2009-04-21 2012-07-18 メロディアン株式会社 容器、容器の製造方法および製造装置
EP2459456B1 (de) 2009-07-31 2018-04-25 Amcor Group GmbH Behälter für heissfüllung
GB2478732B (en) 2010-03-15 2014-08-20 Kraft Foods R & D Inc Improvements in injection moulding
WO2012174422A2 (en) 2011-06-17 2012-12-20 Berry Plastics Corporation Insulated container with molded brim
TW201430034A (zh) 2012-10-26 2014-08-01 Berry Plastics Corp 用於隔熱容器之聚合材料
CN105592997A (zh) 2013-08-16 2016-05-18 比瑞塑料公司 用于绝缘容器的聚合物材料

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US9758293B2 (en) 2011-06-17 2017-09-12 Berry Plastics Corporation Insulative container
US9758292B2 (en) 2011-06-17 2017-09-12 Berry Plastics Corporation Insulated container
US9694962B2 (en) 2011-06-17 2017-07-04 Berry Plastics Corporation Process for forming an insulated container having artwork
US10428195B2 (en) 2011-08-31 2019-10-01 Berry Plastics Corporation Polymeric material for an insulated container
US9783649B2 (en) 2011-08-31 2017-10-10 Berry Plastics Corporation Polymeric material for an insulated container
US9624348B2 (en) 2011-08-31 2017-04-18 Berry Plastic Corporation Polymeric material for an insulated container
US9713906B2 (en) 2012-08-07 2017-07-25 Berry Plastics Corporation Cup-forming process and machine
US9731888B2 (en) 2012-12-14 2017-08-15 Berry Plastics Corporation Blank for container
US9688456B2 (en) 2012-12-14 2017-06-27 Berry Plastics Corporation Brim of an insulated container
US9840049B2 (en) 2012-12-14 2017-12-12 Berry Plastics Corporation Cellular polymeric material
US9957365B2 (en) 2013-03-13 2018-05-01 Berry Plastics Corporation Cellular polymeric material
US10633139B2 (en) 2013-03-14 2020-04-28 Berry Plastics Corporation Container
US9725202B2 (en) 2013-03-14 2017-08-08 Berry Plastics Corporation Container
US9758655B2 (en) 2014-09-18 2017-09-12 Berry Plastics Corporation Cellular polymeric material
US10513589B2 (en) 2015-01-23 2019-12-24 Berry Plastics Corporation Polymeric material for an insulated container
US11091311B2 (en) 2017-08-08 2021-08-17 Berry Global, Inc. Insulated container and method of making the same
US11214429B2 (en) 2017-08-08 2022-01-04 Berry Global, Inc. Insulated multi-layer sheet and method of making the same

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AU4464796A (en) 1996-06-26
JPH08156904A (ja) 1996-06-18
EP0796199B1 (de) 2001-02-21
DE69520154T2 (de) 2001-06-21
EP0796199A4 (de) 1999-01-20
DE69520154D1 (de) 2001-03-29
JP3644992B2 (ja) 2005-05-11
WO1996017772A1 (en) 1996-06-13

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