EP0466271B1 - Apparatus for bonding top portions of containers - Google Patents

Apparatus for bonding top portions of containers Download PDF

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Publication number
EP0466271B1
EP0466271B1 EP19910201782 EP91201782A EP0466271B1 EP 0466271 B1 EP0466271 B1 EP 0466271B1 EP 19910201782 EP19910201782 EP 19910201782 EP 91201782 A EP91201782 A EP 91201782A EP 0466271 B1 EP0466271 B1 EP 0466271B1
Authority
EP
European Patent Office
Prior art keywords
pair
container
correcting
panels
pressure members
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.)
Expired - Lifetime
Application number
EP19910201782
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0466271A1 (en
Inventor
Shigeru Shikoku Kakoki Co. Ltd. Wakabayashi
Shoji Shikoku Kakoki Co. Ltd. Hirose
Kazuo Shikoku Kakoki Co. Ltd. Abe
Shoji Shikoku Kakoki Co. Ltd. Nishioka
Yasuji Shikoku Kakoki Co. Ltd. Fujikawa
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.)
Shikoku Kakoki Co Ltd
Original Assignee
Shikoku Kakoki Co 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
Priority claimed from JP2182364A external-priority patent/JP2934907B2/ja
Priority claimed from JP3042026A external-priority patent/JP2981577B2/ja
Application filed by Shikoku Kakoki Co Ltd filed Critical Shikoku Kakoki Co Ltd
Publication of EP0466271A1 publication Critical patent/EP0466271A1/en
Application granted granted Critical
Publication of EP0466271B1 publication Critical patent/EP0466271B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/067—Gable-top containers
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/18—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by collapsing mouth portion and subsequently folding-down or securing flaps

Definitions

  • the present invention relates to packaging machines for preparing containers having a top in the form of a gabled roof with a top rib, and more particularly to an apparatus for use in the machine for bonding with pressure the top portions of each container to be folded into the gabled roof.
  • Apparatus of this type are already known which comprise a pair of pressure members arranged on opposite sides of a path of transport of containers formed by a conveyor.
  • FIG. 7 shows a container 11 having top portions to be joined together by bonding with application of pressure (hereinafter referred to merely as "bonding").
  • the container 11 has a trunk 12 having a square horizontal cross section, a closed bottom 13 formed by folding the lower end of the trunk flat, and a top 14.
  • the top 14 of the container to be formed into a gabled roof comprises a pair of outer top panels 15, and a pair of inner top panels 16 foldable inward between the pair of outer top panels 15.
  • a rib 19 is formed by a pair of outer rib panels 17 extending from the upper ends of the respective outer top panels 15, and a pair of inner rib panels 18 extending from the upper ends of the respective inner top panels 16 and foldable in two and holdable between the outer rib panels 17.
  • the container is made of a paper-base laminate (not shown) having a thermoplastic synthetic resin film coating on the inner and outer surfaces thereof.
  • FIG. 8 shows the container 11 as bonded at its top rib 19 improperly by the above apparatus. More specifically, the rib panels 17 and 18 forming the rib 19 are bonded out of register.
  • FIG. 9 shows the container 11 and a holder H therefor.
  • the holder H comprises four vertical pieces L-shaped in cross section and extending along the respective four corners of the container externally thereof.
  • the two pairs of vertical pieces are attached to a pair of opposed horizontal endless chains L, respectively. If the chain L becomes stretched or if the vertical piece is attached as improperly adjusted in position, the two pairs will become displaced from each other longitudinally of the chains L.
  • the container held by the vertical pieces thus displaced deforms to a slightly flattened rhombic form from a square indicated in a broken line when seen from above, with the rib panels 17 and 18 for forming the rib 19 positioned out of register in the longitudinal direction. If the container top 14 is bonded in this state, a faulty joint will result as seen in FIG. 8.
  • the main object of the present invention is to provide an apparatus for bonding top portions of containers without producing such faulty joints.
  • the present invention provides an apparatus for bonding top portions of containers with pressure which comprises a pair of correcting and pressure members disposed at opposite sides of a path of travel of container tops and movable outward and away from each other, and being characterized as defined in Claim 1.
  • the outer and inner rib panels are bonded in register by the correcting and pressure members.
  • the invention obviates faulty bonding due to misregister of the rib panels.
  • front refers to the direction toward which containers are transported (leftward in FIG. 2), the term “rear” to the opposite direction, and the terms “right” and “left” are used as the apparatus is seen toward the front as shown in FIG. 2.
  • Containers 11 the same as the container 11 already described are used for the packaging machine including the bonding apparatus of the invention.
  • the packaging machine has a container conveyor 21 for transporting containers 11 in succession so as to stop each container at a bonding station S, and a pair of correcting and pressure members 22 arranged at opposite sides of a path of transport of container tops at the bonding station S.
  • a pair of folding guides 24 is disposed immediately upstream from the bonding station S with respect to the direction of transport of containers, and a pair of cooling members 25 are disposed immediately downstream from the station and movable toward or away from each other.
  • a breaker for prefolding the top 14 of the container 11 so as to be finally foldable to the shape of a gabled roof, and a heater for applying hot air to the rib panels 17, 18 at the prefolded top 14 to melt the thermoplastic synthetic resin film.
  • the container conveyor 21 comprises a pair of opposed horizontal endless chains 31, a multiplicity of container holders 32 attached to these chains 31, and rails 33 for supporting the bottom of the container 11 held by each holder 32 for guiding the container.
  • the holder 32 comprises four vertical pieces 34 L-shaped in cross section and attached to the pair of chains 31, two pieces on each chain.
  • the container 11 is held by the holder 32 with its upper portion including the upper end of the trunk 12 projecting upward beyond the holder and also with the rib panels 17 positioned longitudinally of the conveyor.
  • a small clearance C is provided inside the four vertical pieces 34 around the container 11 as held by the holder 32, such that the container 11 is deformable to an extent corresponding to the clearance C.
  • the correcting and pressure members 22 on each side of the path are formed by a block 35, which is held by a bonding head 36.
  • the pair of blocks 35 are respectively provided with a pair of vertical pressing faces 61 for bonding the outer rib panels 17 and the inner rib panels 18 of the top 14, and with a pair of downwardly slanting faces 62 extending from the lower ends of the respective vertical faces 61 and conforming to the gabled roof of the top 14 to be formed.
  • the pair of bonding heads 36 are fixed to the upper ends of a pair of opposed pivotal arms 42, respectively, so as to oppose to each other and are movable toward or away from each other by toggle link mechanisms 43.
  • the pair of pivotal arms 42 are supported at their lower ends respectively by a pair of parallel horizontal pivots 41 arranged at the respective sides of the path of transport of containers and extending in the longitudinal direction.
  • Each of the toggle link mechanisms 43 comprises a first link 44 and a second link 45 which are interconnected each at its one end.
  • the other end of the first link 44 is connected to the correcting and pressure member 22, and the other end of the second link 45 is connected to a support 46 by a bracket 47.
  • the opposed supports 46 are interconnected by a horizontal tie rod 48.
  • a lift rod 51 By a connecting rod 49, the upper end of a lift rod 51 is connected to the interconnected ends of the links of the toggle link mechanism 43 at the left side.
  • the interconnected link ends of the toggle link mechanism 43 at the right side has connected thereto the upper end of a lift rod 51 by a pressure adjusting mechanism 52.
  • This mechanism 52 comprises a cylinder 54 having an upward lug 53 which is pivoted at its upper end to the interconnected link ends of the toggle link mechanism, a piston 56 housed in the cylinder 54 and having a piston rod 55 which extends through the bottom wall of the cylinder, a compression spring 57 provided between the piston 56 and the cylinder bottom wall, and a member 58 connecting the lower end of the piston rod 55 to the upper end of the lift rod 51.
  • the portion of the container 11 to be made into its top 14, although prefolded, is in an unfolded state when positioned upstream from the bonding station S, and is generally closed by the time it is transported to the bonding station S.
  • the opposed correcting and pressure members 22 remain away from each other until the container 11 is brought to the bonding station S (FIG. 4, (a)), but upon the container 11 reaching the station S, the correcting and pressure members 22 start to approach each other, bringing the boundaries between the vertical faces 61 and the slanting faces 62 into contact with the container top (FIG. 4, (b)). As the correcting and pressure members 22 further approach, the slanting faces 62 of the members 22 are brought into contact with the respective outer top panels 15 of the top 14, which in turn is folded to the predetermined shape of the gabled roof. Even if the outer rib panels 17 and the inner rib panels 18 are out of register longitudinally of the conveyor, the above movement eliminates the misregister.
  • FIGS. 5 and 6 show modified correcting and pressure members 71, 72.
  • the parts corresponding to those shown in FIGS. 1 to 4 are each designated by the same corresponding reference numeral and will not be described again.
  • Each correcting and pressure member 71, 72 comprises a pressure part 71 and a correcting part 72.
  • the pressure part 71 is in the form of a horizontal flat plate of large thickness.
  • the opposed faces of the pair of pressure parts 71 serve as pressing faces 73.
  • the two correcting parts 72 are each U-shaped in horizontal section and are secured to the bottom sides of the respective pressure parts 71 so as to oppose to each other.
  • the distance between the parallel portions of each U-shape correcting part 72 is equal to the length of the container trunk 12 along the longitudinal direction, and the opposed faces of the parallel portions serve as correcting faces 74.
  • the opposed forward ends of the correcting part 72 are flared to serve as guide portions 75.
  • the correcting parts 72 fit to the upper end portion of the container trunk 12, whereby the trunk upper end portion, rhombic in horizontal cross section, is corrected to a square horizontal cross section. This eliminates the misregister of the outer rib panels 17 and the inner rib panels 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing Of Containers (AREA)
EP19910201782 1990-07-09 1991-07-09 Apparatus for bonding top portions of containers Expired - Lifetime EP0466271B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2182364A JP2934907B2 (ja) 1990-07-09 1990-07-09 容器頂部密封装置
JP182364/90 1990-07-09
JP3042026A JP2981577B2 (ja) 1991-03-07 1991-03-07 包装機械における容器頂部圧着装置
JP42026/91 1991-03-07

Publications (2)

Publication Number Publication Date
EP0466271A1 EP0466271A1 (en) 1992-01-15
EP0466271B1 true EP0466271B1 (en) 1994-11-30

Family

ID=26381671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910201782 Expired - Lifetime EP0466271B1 (en) 1990-07-09 1991-07-09 Apparatus for bonding top portions of containers

Country Status (3)

Country Link
EP (1) EP0466271B1 (da)
DE (1) DE69105376T2 (da)
DK (1) DK0466271T3 (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20010191A1 (it) * 2001-03-05 2002-09-05 Tetra Laval Holdings & Finance Unita' di piegatura per una macchina confezionatrice di prodotti alimentari versabili.
SE0203701D0 (sv) * 2002-12-13 2002-12-13 Tetra Laval Holdings & Finance Förseglingsanordning
DE102006042506B4 (de) * 2006-09-07 2015-04-16 Sig Technology Ag Verfahren und Vorrichtung zur Herstellung einer Karton/Kunststoff-Verbundverpackung
GB201319551D0 (en) * 2013-11-05 2013-12-18 Elopak Systems Improvements in or relating to packaging
JP7169997B2 (ja) * 2017-05-30 2022-11-11 テトラ ラバル ホールディングス アンド ファイナンス エス エイ 食品製品用パッケージの上部を密封するための装置及び食品パッケージを形成し充填するためのシステム
BR112021002694A2 (pt) 2018-09-10 2021-05-11 Tetra Laval Holdings & Finance S.A. métodos para conformar um tubo de uma folha contínua e para produzir embalagens vedadas, e, máquina de acondicionamento para produzir embalagens vedadas.
BR112021002699A2 (pt) 2018-09-11 2021-05-11 Tetra Laval Holdings & Finance S.A. aparelho de acondicionamento para conformar uma pluralidade de embalagens vedadas.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2812138C2 (de) * 1978-03-20 1983-06-01 Jagenberg-Werke AG, 4000 Düsseldorf Vorrichtung zum Falten und Verschließen von giebelförmigen Köpfen von Faltschachteln
US4603535A (en) * 1985-05-28 1986-08-05 Container Development Company Portable sealing device
JP2509901Y2 (ja) * 1986-05-26 1996-09-04 四国化工機 株式会社 容器の頂部折り畳み装置

Also Published As

Publication number Publication date
DE69105376T2 (de) 1995-05-11
EP0466271A1 (en) 1992-01-15
DK0466271T3 (da) 1995-01-23
DE69105376D1 (de) 1995-01-12

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