EP1547924A1 - Apparatus and method for bending first and second cross seals of a tubular bag - Google Patents

Apparatus and method for bending first and second cross seals of a tubular bag Download PDF

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Publication number
EP1547924A1
EP1547924A1 EP03029722A EP03029722A EP1547924A1 EP 1547924 A1 EP1547924 A1 EP 1547924A1 EP 03029722 A EP03029722 A EP 03029722A EP 03029722 A EP03029722 A EP 03029722A EP 1547924 A1 EP1547924 A1 EP 1547924A1
Authority
EP
European Patent Office
Prior art keywords
bag
sidewall
cross
packaging
towards
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Withdrawn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
EP03029722A
Other languages
German (de)
French (fr)
Inventor
Peter Joseph Hendriks
Rudolf Adrianus Van Gulik
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.)
GEA Food Solutions Weert BV
Original Assignee
CFS Weert BV
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 CFS Weert BV filed Critical CFS Weert BV
Priority to EP03029722A priority Critical patent/EP1547924A1/en
Priority to US10/584,361 priority patent/US20070271878A1/en
Priority to PCT/EP2004/014615 priority patent/WO2005063580A2/en
Publication of EP1547924A1 publication Critical patent/EP1547924A1/en
Withdrawn legal-status Critical Current

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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
    • B65B61/28—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for discharging completed packages from machines
    • 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
    • B65B61/24—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for shaping or reshaping completed packages
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2042—Means for altering the cross-section of the tube filling opening prior to transversal sealing, e.g. tube spreading devices
    • 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
    • B65B2220/12—Creating additional longitudinal welds on horizontal or vertical form fill seal [FFS] machines for stiffening packages or for creating package edges

Definitions

  • Figure 3 shows the inventive apparatus which is arranged under the cross seal 14 according to Figure 2.
  • the packaging item is positioned above the nozzles 4.
  • the nozzles 4 are directed towards the side of lower cross seal 2 of the packaging item according to Figure 1. Air is ejected through the nozzles 4 for a very short period of time, i. e. some milliseconds in order bend the cross seal 2 towards the sidewall, while the upper cross seal 1 of the bag according to Figure 1 is produced and the bag 3 is cut from the foil web 9. After the bag 3 has been separated from the foil web, it drops into the gap 25 and hits plate 8. Since the lower seal 2 is already bent by the nozzles 4 and due to the impetus and the weight of the packaged items, cross seal 2 is further bent towards the sidewall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)

Abstract

The present invention relates to an apparatus to bend a first and a second cross seal (1,2) of the bag (3) made of a flexible packing material towards the sidewall (5). The present invention further relates to a packaging machine comprising the inventive apparatus and a method for producing a bag (3) made of a flexible packaging material.

Description

The present invention relates to an apparatus to bend a first and a second cross seal of the bag made of a flexible packing material towards the sidewall. The present invention further relates to a packaging machine comprising the inventive apparatus and a method for producing a bag made of a flexible packaging material.
Food stuff, especially sweets and snacks are nowadays merchandised in packaging items made of a plastic material. These packaging items must be manufactured cost-efficiently and must be appealing in order to present the packaged product appropriately. In this respect, it is desireable to produce cuboid-shaped bags with cross seals that are oriented towards the sidewalls.
It is therefore the problem of the present invention to provide an apparatus to produce bags made of a flexible packaging material with cross seals which are bent towards the sidewall of the bag.
The problem is solved by an apparatus according to claim 1. Preferred embodiments of the inventive apparatus are claimed in the subclaims 2-4.
It was totally surprising and could not have been expected by a person skilled in the art that the inventive apparatus allows to produce bags with cross seals bent towards the sidewall of the bag. The inventive apparatus is produced and operated easily and cost-efficiently.
According to the present invention, the apparatus comprises first and second means to orientate the first and the second cross seal towards the sidewall of the bag. These means can be any means known by a person skilled in the art which bends the cross seal toward the sidewall. Preferably, these bending means are one or more nozzles which blows gas, preferably air against one side of the cross seals in order to bend them to the sidewall. In another preferred embodiment of the present invention, the bending means are mechanical means like a plate.
Furthermore, the inventive apparatus comprises turning means in order to turn the bag, preferably upside down. Before the bag is turned, it is fixed at the turning means. Consequently, in a preferred embodiment of the present invention, the turning mean comprises fixing means, for example clamping jaws or means to produce a vacuum in order to fix the bag at the turning means. After the bag has been fixed at the turning means, the turning mean rotate preferably by 180 °.
In a preferred embodiment of the present invention, the turning means comprises a plane, preferably a plate, on which the bag after the lower cross seal has been bend, is dropped. Due to the impetus and due to the weight of the packaged item, the bend cross seals and/or the side folds of the bag are further shaped; i. e. the shape of a cuboid is improved.
Another subject matter of the present invention is a packaging machine, preferably a vertical type packing machine for producing tubular bags from a foil web which comprises the inventive apparatus to bend the first and the second cross seal.
It was surprising and could not have been expected for a person skilled in the art that the inventive packaging machine is produced and operated easily and cost-efficiently. The inventive packaging machine allows to produce packaging bags which have almost a cuboid shape.
Another subject matter of the present invention is a method to produce a bag made of a flexible packaging material and filled with packaging item whereas the bag is turned while it is produced.
It could not have been expected and was totally surprising for a person skilled in the art that the inventive method is carried out easily. With the inventive method, it is possible to produce packaging bags with almost cuboid shape.
In a preferred embodiment of the inventive method, two cross seals of the bag are oriented towards the sidewall of the bag.
Preferably, the shape of the bag is stabilized by the packaging item.
In another preferred embodiment of the present invention, the cross seals are bent towards the sidewall of the bag by the weight of the packaging item.
Another subject matter of the present invention is a method to produce a bag made of a flexible material filled with a packaging item and comprising a side wall, whereas the weight of the packaging item is used to support the shaping of at least 2 sides of the side wall.
The inventions are now described in greater details hereinafter in connections with drawings 1-3 which illustrate exemplary embodiments of the present invention. The illustrations are applicable to the inventive apparatus, the inventive packaging machines and the inventive methods. The drawings show:
  • Figure 1 a cuboid bag.
  • Figure 2 a scheme of a vertical form fill packaging machine.
  • Figure 3 an embodiment of the inventive apparatus.
    • Figure 1 shows a tubular cuboid shape bag which can be filled with a packaging item (not depicted). The bag comprises a sidewall 5 and a top area 22 and a bottom area 23. The bag has four side folds 19, 29, 21, 24 whereby two side folds, e.g. sidefolds 19, 29 and sidefolds 21, 24 are sealed together by cross seals 1, 2, respectively. At the top and at the bottom, the bag comprises welded edges 18 in order to improve the cuboid form. The longitudinal seal 17 extends or is aligned with one of the welded edges 18. It can be seen that the cross seal 2 has already been bent towards the sidewall of the bag, especially towards the sidefolds, while cross seal 1 is still more or less perpendicular with respect to the sidefolds
    In Figure 2, a vertical form fills a seal packaging machine; i. e. a vertical flow rapper is systematically depicted, which allows for example the production of the bag according to Figure 1. A web of a foil 9, especially a sealable plastic film 9, is supplied by rolls (not shown) of film material. The foil 9 web is then shaped by the shaping shoulder 16 to provide a rather tubular form to the material. According to the present invention, "tubular form" of the bags or of the foil means any cross-sectional form including a circular form or another form, and especially a rectangular or generally a polygonal form. The vertical flow wrapper further comprises longitudinal sealing means 27 in order to produce the longitudinal seal 17 of the bag and edge sealing means 30 in order to manufacture edge seals 18. The person skilled in the art understands that the edge seals are optional. After applying the longitudinal seal and optionally the edge seals, the bottom of the bag 2 can be formed by a special bottom forming means 13. The bottom forming means especially comprise means to produce the sidefolds 19, 21, 24 and 29. Finally, cross seals 1, 2, extending perpendicularly (or transversally) to the direction of flow of the foil, are applied, especially by means of cross-seal jaws 14. The cross seal jaws 14 further comprises cutting means which separate the completed bags. Thus the cross seal applied is the bottom seal 2 for one bag and the top seal 1 the next bag.
    Figure 3 shows the inventive apparatus which is arranged under the cross seal 14 according to Figure 2. The packaging item is positioned above the nozzles 4. The nozzles 4 are directed towards the side of lower cross seal 2 of the packaging item according to Figure 1. Air is ejected through the nozzles 4 for a very short period of time, i. e. some milliseconds in order bend the cross seal 2 towards the sidewall, while the upper cross seal 1 of the bag according to Figure 1 is produced and the bag 3 is cut from the foil web 9. After the bag 3 has been separated from the foil web, it drops into the gap 25 and hits plate 8. Since the lower seal 2 is already bent by the nozzles 4 and due to the impetus and the weight of the packaged items, cross seal 2 is further bent towards the sidewall. Additionally, the side folds 21 and 24 are further allined towards the lower side of the packaging item, so that the cuboid-shape of the bag is improved. Since the cross seal 2 still has an elevated temperature which is caused by the cross seal process, the cross seal 2 is deformed plastically. The bag looks now as shown in figure 1; i.e. cross seal 1 has not yet been bent. After the packaging item 3 has hit plate 8, jaws 12 are moved towards each other to fix the bag 3. After the bag 3 has been fixed, the turntable 7 rotates counter-clockwise by 180 ° The person skilled in the art understands that turntable 7 needs not rotate back and forth, but can always rotate in one direction. At the lower end 28, the inventive apparatus further comprises another set of nozzles 6 which can eject air and which are directed against the side of cross seal 1 after the bag has been turned upside down by the turntable 7. The nozzles 6 or any other means to bend the cross seals need not be at the lower end, but can be anywhere in the vicinity of the inventive apparatus. Due to the impact of the air, the upper cross seal 1, which still has an elevated temperature, is also oriented towards the sidewall. The orientation of cross seal 1 can be in the same direction as cross seal 2 or asymmetrical. After the orientation of the cross seal has been taken place, the jaws 12 are moved apart, so that the bag 3 falls into channel 26 and from there on a plate (not depicted) which further forms the cross seal 1 as well as the side folds 19 and 23 in order to improve the cuboid shape of the bag 3. Since the seal 1 is already bent by the nozzles 4 and due to the impetus and the weight of the packaged items, cross seal 1 is further bent towards the sidewall. The a. m. plate can be designed as a jotting table. Finally, the turntable rotates clockwise by 180° and the process starts again.
    Reference signs
    1,2
    cross seal
    3
    bag
    4,6
    gas ejection nozzles
    7
    turning mean
    8
    plate
    9
    film
    10,11
    one side of the bag
    12
    jaws
    13
    means to produce the side fold
    14
    cross seal
    15
    filling tube
    16
    forming shoulder
    17
    longitudinal seal
    18
    corner seal
    19, 21
    side folds
    20
    direction of flow
    22
    top area
    23
    bottom area
    24, 29
    side folds
    25
    gap
    26
    channel
    27
    longitudinal sealing means
    28
    lower end
    30
    corner sealing means

    Claims (10)

    1. Apparatus to bend a first and a second cross seal (1, 2) of a bag (3), made of a flexible packaging material, towards the sidewall (5) with:
      first means (4) to orient the first cross seal (2) towards the sidewall (5) of the bag,
      turning means (7) to fix and turn the bag and
      second means (6) to orient the second cross seal (1) towards the sidewall (5) of the bag.
    2. Apparatus according to claim 1, characterized in that turning means (7) comprises a plane (8) on which the bag is dropped before it is fixed.
    3. Apparatus according to claim 1 or 2, characterized in that the turning means rotate by 180° back and forth.
    4. Apparatus according to one of the preceding claims, characterized in that the means (4, 6) are gas ejection means or meachanical means, preferably a plate
    5. Packaging machine (1), especially vertical-type packaging machine, for producing tubular bags (3) from a foil (9) web, characterized in that it comprises an apparatus according to one of the claims 1 - 4.
    6. Method to produce a bag (3) made of a flexible packaging material and filled with a packaging item, characterized in that it is turned while it is produced.
    7. Method according to claim 6, characterized in that two cross seals (1, 2) of the bag are oriented towards the sidewall (5) of the bag.
    8. Method according to claim 7, characterized in that the shape of the bag is stabilized by the packaging item.
    9. Method according to claim 7 or 8, characterized in that the cross seals (1, 2) are bent towards the sidewall (5) of the bag (3) by the weight of the packaging item.
    10. Method to produce a bag (3) made of a flexible packaging material, filled with a packaging item and comprising a sidewall (5), characterized in that the weight of the packaging item is used to support the shaping of at least two sides (10, 11) of the sidewall.
    EP03029722A 2003-12-23 2003-12-23 Apparatus and method for bending first and second cross seals of a tubular bag Withdrawn EP1547924A1 (en)

    Priority Applications (3)

    Application Number Priority Date Filing Date Title
    EP03029722A EP1547924A1 (en) 2003-12-23 2003-12-23 Apparatus and method for bending first and second cross seals of a tubular bag
    US10/584,361 US20070271878A1 (en) 2003-12-23 2004-12-22 Apparatus And Process For Producing A Tabular Bag
    PCT/EP2004/014615 WO2005063580A2 (en) 2003-12-23 2004-12-22 Apparatus and method for bending first and second cross seals of a tabular bag

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP03029722A EP1547924A1 (en) 2003-12-23 2003-12-23 Apparatus and method for bending first and second cross seals of a tubular bag

    Publications (1)

    Publication Number Publication Date
    EP1547924A1 true EP1547924A1 (en) 2005-06-29

    Family

    ID=34530720

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03029722A Withdrawn EP1547924A1 (en) 2003-12-23 2003-12-23 Apparatus and method for bending first and second cross seals of a tubular bag

    Country Status (3)

    Country Link
    US (1) US20070271878A1 (en)
    EP (1) EP1547924A1 (en)
    WO (1) WO2005063580A2 (en)

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2017048676A1 (en) * 2015-09-18 2017-03-23 Clear Lam Packaging, Inc. Apparatus and method for making a flexible package
    US10232969B2 (en) 2007-08-08 2019-03-19 Primapak, Llc. Flexible, stackable container and method and system for manufacturing the same
    US11267632B2 (en) 2012-10-26 2022-03-08 Primapak, Llc Flexible package and method of making the same
    US11447299B2 (en) 2012-10-26 2022-09-20 Primapak, Llc Flexible material for flexible package

    Families Citing this family (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US9902517B2 (en) * 2013-11-01 2018-02-27 Frito-Lay North America, Inc. Apparatus and method for a structurally resilient package
    US9840346B2 (en) * 2013-11-01 2017-12-12 Frito-Lay North America, Inc. Method and apparatus for making a structurally resilient package

    Citations (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB1016924A (en) * 1962-05-02 1966-01-12 Hesser Ag Maschf Machine for producing firm,filled bag packages
    DE1218332B (en) * 1963-03-27 1966-06-02 Habra Werk Ott Kg Machine for the production, filling and sealing of rectangular packs from a continuous strip of paper with a heat-sealable coating
    DE1461916A1 (en) * 1965-04-12 1969-04-17 Hesser Ag Maschf Machine for the production, filling and sealing of packages
    DE2134473A1 (en) * 1971-07-10 1973-01-25 Hamac Hansella Gmbh DEVICE FOR MANUFACTURING BAG PACKS
    US4034537A (en) * 1973-07-26 1977-07-12 Altstadter Verpackungs-Vertriebs Gmbh Method and apparatus for the continuous manufacture of packages for liquids
    WO2000007903A1 (en) * 1998-08-07 2000-02-17 Atifon Comprehensive Packaging Systems (1996) Ltd. Container having stabilized base and its manufacture
    US6428456B1 (en) * 1998-01-30 2002-08-06 Bp Europack S.P.A. Apparatus for forming tubular containers with reinforced edges and container

    Patent Citations (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    GB1016924A (en) * 1962-05-02 1966-01-12 Hesser Ag Maschf Machine for producing firm,filled bag packages
    DE1218332B (en) * 1963-03-27 1966-06-02 Habra Werk Ott Kg Machine for the production, filling and sealing of rectangular packs from a continuous strip of paper with a heat-sealable coating
    DE1461916A1 (en) * 1965-04-12 1969-04-17 Hesser Ag Maschf Machine for the production, filling and sealing of packages
    DE2134473A1 (en) * 1971-07-10 1973-01-25 Hamac Hansella Gmbh DEVICE FOR MANUFACTURING BAG PACKS
    US4034537A (en) * 1973-07-26 1977-07-12 Altstadter Verpackungs-Vertriebs Gmbh Method and apparatus for the continuous manufacture of packages for liquids
    US6428456B1 (en) * 1998-01-30 2002-08-06 Bp Europack S.P.A. Apparatus for forming tubular containers with reinforced edges and container
    WO2000007903A1 (en) * 1998-08-07 2000-02-17 Atifon Comprehensive Packaging Systems (1996) Ltd. Container having stabilized base and its manufacture

    Cited By (7)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US10232969B2 (en) 2007-08-08 2019-03-19 Primapak, Llc. Flexible, stackable container and method and system for manufacturing the same
    US11124323B2 (en) 2007-08-08 2021-09-21 Primapak, Llc Flexible, stackable container and method and system for manufacturing the same
    US11267632B2 (en) 2012-10-26 2022-03-08 Primapak, Llc Flexible package and method of making the same
    US11447299B2 (en) 2012-10-26 2022-09-20 Primapak, Llc Flexible material for flexible package
    WO2017048676A1 (en) * 2015-09-18 2017-03-23 Clear Lam Packaging, Inc. Apparatus and method for making a flexible package
    CN108367827A (en) * 2015-09-18 2018-08-03 优装有限责任公司 Device and method for manufacturing flexible package
    US10843837B2 (en) 2015-09-18 2020-11-24 Primapak, Llc Apparatus and method for making a flexible package

    Also Published As

    Publication number Publication date
    US20070271878A1 (en) 2007-11-29
    WO2005063580A2 (en) 2005-07-14
    WO2005063580A3 (en) 2005-11-03

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