WO1987004406A1 - Elements de recipient et leur procede de fabrication - Google Patents

Elements de recipient et leur procede de fabrication Download PDF

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Publication number
WO1987004406A1
WO1987004406A1 PCT/JP1987/000016 JP8700016W WO8704406A1 WO 1987004406 A1 WO1987004406 A1 WO 1987004406A1 JP 8700016 W JP8700016 W JP 8700016W WO 8704406 A1 WO8704406 A1 WO 8704406A1
Authority
WO
WIPO (PCT)
Prior art keywords
flange
flank
curled
heat
side wall
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.)
Ceased
Application number
PCT/JP1987/000016
Other languages
English (en)
Japanese (ja)
Inventor
Kikuo Matsuoka
Kazumi Hirota
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.)
Toyo Seikan Group Holdings Ltd
Original Assignee
Toyo Seikan Kaisha 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 Toyo Seikan Kaisha Ltd filed Critical Toyo Seikan Kaisha Ltd
Publication of WO1987004406A1 publication Critical patent/WO1987004406A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/12—Rim rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7132—Bowls, Cups, Glasses

Definitions

  • the present invention relates to a laminated body including a heat-sealing resin layer and a metal layer, and to a container member such as a cup-shaped container body and a method of manufacturing the same. Or a heat seal.] It has an outward flange and a side wall to be joined to the lid member, and has a curl on the outer peripheral edge of the flange and slot.
  • a container member used as a member such as a sealed container for retort sterilization treatment, in which a part is formed, and a manufacturing method thereof o
  • the inside of the container is a heat-sealable resin layer having a flank portion, and the inside surface is made of a heat-sealing resin layer.
  • a cover member formed of a laminate including a sealable resin layer and a metal foil (mainly aluminum foil) layer is heat-sealed to the flange portion, and a rate is determined. Sealed containers that can withstand germicidal sterilization are widely used.
  • the main body is disclosed in Japanese Patent Application Laid-Open No. 58-134845.
  • the curl part of this type of container body is shown in Fig. 8. Like the step curl portion 2 of the container body 1 to be formed, it rises from the outer peripheral edge of the flange portion 3 and is wound toward the side opposite to the side wall portion 5 first, It is of the type that forms the step 4, or on the opposite side of the side wall 15 first, as in the reverse curl 12 of the container body 11 shown in FIG. All of these types, which are wound in the opposite direction and whose uppermost surface 12a is located at substantially the same level as the flank portion 13, were relatively easy to form.
  • the liquid of the content that has spilled on the flank and the fill portion 13 at the time of filling is filled with the gap 1 of the curl portion 12. 6 and can easily become rotted and unsanitary in the distribution process of sealed containers. Therefore, according to the present invention, a relatively inexpensive lid member can be used, and the heat seal defective portion and the heat shield are hardly stained. It is difficult for the liquid of the contents to enter and remain in the gaps between the curls.] It is difficult for the heat seals to be joined.
  • the purpose of the present invention is to provide a container member such as a buckle-shaped container body in which a curl portion for reinforcement is formed on an outer peripheral edge of the flange portion. Target.
  • Another object of the present invention is to provide a method for producing the above-mentioned container member.
  • the container member of the present invention is a heat seal! This is a type of container member that should be joined to the lid member, has an outwardly extending flank extending in the radial direction, a jig, and a side wall.
  • the container member is formed of a heat-sealing resin layer on the side to be heat-sealed] [9] and a laminate including a metal layer].
  • the outward-facing flank is a curl with a circular cross-section that is curled downward so that the outer periphery is first directed toward the side wall.
  • the uppermost surface of the handle is substantially at the same level as the main part of the outward flange, or is slightly lower than the main part.
  • a cup-shaped seamless container body is particularly suitable, but a cylinder having a side joint portion.
  • the container member may be shaped like a container.
  • the cross-sectional shape of the container member may be any suitable shape such as a circle, an ellipse, and a square with rounded corners.
  • the outer flange portion extending in the radial direction has a heat-sealing resin layer on the side to be heat-sealed.
  • the side is the heat-sealing resin layer.
  • the container member is formed of a laminate including a metal layer, it is possible to form a stable curved portion due to the plasticity of the metal layer, and is excellent in shape retention. . Also, due to the gas impermeability of the metal layer, this container member is excellent in gas barrier properties. Since the curl portion formed on the outer peripheral edge of the flank portion has a circular cross section, the curl portion is rich in the reinforcing effect, and even if the laminate is relatively thin, the flank portion is not flared. The curled part is curled downward so as to first face the side wall part, and the top of the curled part is the main part of the flared part. It is at substantially the same level or slightly below this main part.
  • the lid member web is Metallic foils, such as pre-punched lids, which require a particularly high degree of rigidity to ensure flatness and are therefore relatively thin, such as aluminum foil It may be a laminate containing Therefore, the cost of the lid member is low.
  • the manufacturing method according to the present invention is characterized in that the heat seal has a radially extending outward flange portion to be joined to the lid member, and a side wall portion.
  • the curled part has a circular cross-section with the outer edge facing the first side toward the wall.
  • the curled part is the main part of the flared part. Substantially the same level as this, or the main part] is also located slightly below.
  • the heat-sealing resin layer and the metal layer are stacked, and the heat-sealing resin layer is the surface of the flange to be heat-sealed.
  • a preform of a container member having a flange portion extending in a radial direction to be a flank portion and a side wall portion is formed so as to be on the side.
  • the surrounding green part of the flange is raised vertically to form a rising part, and then the rising part is curled so as to face the side opposite to the side wall first.
  • a circular shape and the uppermost surface is the flange portion.
  • a winding portion is formed at a higher level, and then the winding portion is formed such that the uppermost surface is substantially at the same level as the flange portion. Is turned around the starting point of the winding part until it reaches slightly below, and then pushed down to form a curl o
  • FIG. 1 is a longitudinal sectional view of a container member according to an embodiment of the present invention
  • FIG. 2 is an enlarged view of a portion A in FIG. 1
  • FIGS. 3 (a), (b) and (c) are FIG. 4A, 4B, 5A, and 6B are explanatory drawings showing steps (excluding the final step) for manufacturing the container member of FIGS. 3 (a), 3 (b) and 3 (b).
  • FIG. 7 is a curl part formation in the final step of manufacturing the container member shown in FIG. 8 and 9 are main part longitudinal cross-sectional views showing examples of the first and second examples of conventional container members, respectively, showing a tool for performing the above.
  • a cup-shaped container main body 21 is provided with an outward flank portion 23 extending in a radial direction, and a side wall portion 25.
  • the first part of the outer circumference of the flange A curl portion 22 having a circular cross section and curled downward so as to face the side wall portion 25 is formed.
  • the term “circular” refers to a shape other than a perfect circle, which is close to a circle.
  • the uppermost surface 22a of the curl portion 22 is located at substantially the same level as the substantially flat main portion 23a of the flank portion 23. ⁇ ⁇ There is a slight depression 23 b between the main part 23 a and the curl part 22, but it is necessary to form the curl part 22 as described later. It is preferable that the depth of the recessed portion 23b be as small as possible. Although not shown, the uppermost surface 22a may be located slightly (for example, about 0.5 mm) below the main portion 23a.
  • the width of the flank portion 23 (including the curl portion 22) is usually about 2 to 10 lords, preferably about 3 to 7 mm.
  • the coil part 22 is wound until the tip part 22 b thereof contacts the lower inner surface of the curl part 22. This is preferable in that the reinforcing effect of the curl portion 22 is enhanced.
  • the container body 21_ has a heat-sealing resin layer 24a serving as an inner layer, an adhesive layer 24b, and a metal layer 24c serving as an intermediate layer.
  • outer layer 24 e] The flank portion 23 of the five-layered laminated body 24, which is formed and is to be heat-sealed, is formed.
  • the upper surface of the part 23a is a heat-sealable resin layer 24a]).
  • thermoadhesive coating film having a thickness of about 4 ⁇ 1 0 m (e.g. bi Neil system also Or a thermoplastic 'fe plastic film with a thickness of about 10 to 200 ⁇ (eg, polyproviren, polyethylene, linear polyene) , Linear copolyester polyamide, ethylene-vinyl acetate copolymer, etc.).
  • the metal forming the metal layer 24c may be a foil or sheet of steel, brass, electrolytic iron, aluminum, or the like having a thickness of about 7 to 400 iw, and the like.
  • surface treatments such as aluminum treatment, base treatment, phosphorus- and / or (electrolysis) chromic acid treatment, and the like are exemplified.
  • the outer layer 24 e is, for example, a coating film having a thickness of about 4 to 10 m (eg, epoxy-based, epoxy-based, vinyl-based, epoxy-based). Or a plastic film with a thickness of about 7 to 200 "w (for example, linear ballistic polyester, polyacrylic, etc.). Amide, poly (vinyl chloride), poly chlorophyll (polyethylene chloride, polyethylene, polyethylene carbonate, etc.).
  • the adhesive layers 24b and 24d are about 3 to 10: a thickness of about 10 to 10%, or about 10 to 10%, respectively. It is usually formed by a lens or the like. However when the inner layer 24a is a coating film, the adhesive layer 24b is used, whereas when the outer layer 24e is a coating film, the adhesive layer 24d is usually unnecessary.
  • the heat-sealable resin layer 24a is narrowed down so that it is on the inner surface.
  • a peripheral portion 33a of the flange portion 33 is vertically raised to form a rising portion 35 extending in the axial direction. Then, the rising portion 35 is first turned outward, that is, first turned to the opposite side to the side wall portion 32, and has a circular cross section and the top surface.
  • 3 4a is Tsubabe
  • the winding part 3 4 as shown in FIG. 3 (c) is located at a high level, and preferably, the lowermost surface 34 b is located at substantially the same level as the flange 33. (Corresponding to the step call part 2 in FIG. 8).
  • the rise j9 part 35 and the winding part 34 can be formed by a known method.
  • Fig. 4, Fig. 5 and Fig. 6 show examples of the tools for forming them and the forming process.
  • 4 4 is the central axis
  • 4 5 is the central axis
  • the head, 46 is: ° Letsach. This is a guide to guide the children.
  • the center shaft 44 and the retainer 46 are fixed to a fixed support (not shown).
  • the pad 45 is elastically supported via a mouth 48 by an illustrated cylinder! ),
  • the side protrusion 45 a engages with the S-retainer 46] 9], so that the rise is restrained.
  • Pletschach. A curling group 51 having a U-shaped cross section whose bottom surface is semicircular in cross section and whose depth is equal to the diameter of the semicircle is formed on the inner upper end surface of the head 45.
  • 5 2 is an outer die
  • 5 3 is an inner die
  • the inner die 5 3 is slidable along the inner surface of the outer die 5 2. Due to the pressurized air in the air chamber, a downward force is always elastically applied.
  • a flange having a flange portion 33 having a width slightly larger than a specified width is formed.
  • the outer die 52 is pressed. Lower it together with the pad 45, and use the blades 52a and 46a to set the width of the flange 33! Cut off the part 33 of the outer peripheral part 33a to form the rising part 35 from the peripheral part 33a of the flange part 33 of a specified width.
  • start-up] 9 part 3 5 force-ring golf.
  • a winding section 34 having a circular cross section is formed by j9 coloring according to 51. ⁇
  • the winding part 3 4 may be formed at the end of the preform 3 1 forming process.
  • FIG. 7 shows a tool for forming the winding portion 34 and the curl portion 22 and a forming process.
  • 6 1 is the die
  • 6 2 is a holding tool
  • 6 3 is a pressing tool
  • the holding tool 6 2 has an outer peripheral surface 6 2 a at the step portion 34 b of the winding portion 34 to be fitted with a vik. ing .
  • the height H is substantially equal to the height h above the upper surface of the flange portion 33 of the winding portion 34, and the diameter of the side peripheral surface 64a is held at the upper peripheral green of the die 61.
  • a circumferential groove 64 having a width D substantially equal to the diameter of the outer peripheral surface 62 a and a width D substantially equal to the width W of the winding portion 34 is formed.
  • the presser 6 3 has a presser circumferential groove having a cylindrical surface 65 b.
  • the inner diameter of the presser peripheral groove 65 is substantially equal to the diameter of the outer peripheral surface 61 a of the die 61, and the presser peripheral groove 65 of the press fixture 63 is provided.
  • the inner diameter of the upper part 63a is set substantially equal to the diameter of the retainer 62, so that the retainer 63 can slide along the die 61 and the retainer 62. It is.
  • the cross section of the upper corner portion 65 a of the presser circumferential groove 65 is substantially equal to the radius of the outer circumference of the winding portion 34. It has a large radius of curvature.
  • Fig. 7 The 7 ° reference beam 31 is set and the flange 33 is fixed by the die 61 and the retainer 62 so that the circumferential groove 6 of the die 61 is formed. With the outer peripheral surfaces of 4 and the retainer 6 2 being pressed so that they are located on the same virtual cylindrical surface, the lowering member 63 is at a height h or a distance h slightly larger distance h 'descent (in the latter case, H is defined to be slightly larger than h).
  • the winding portion 34 is suspended while the radially outer end 34 X of the preform 31 is restricted by the cylindrical surface 65 b of the presser circumferential groove 65.
  • the inner end 3 4 y in the radial direction is restricted by the outer peripheral surface 6 2 a of the retainer 6 2 and the side peripheral surface 6 4 a of the circumferential groove 64 of the die 61, and is lowered and pushed down.
  • After the lower end is regulated by the bottom surface of the circumferential groove 64, while maintaining its shape, after being rotated approximately 90 degrees around the base point 67 of the winding portion 34. It is formed in a curl portion 22 having a circular cross section.
  • the curl portion 22 is formed as described above:
  • the refrm 31 is a container body 21 having a flank portion 23 (corresponding to the flange portion 33).
  • a slight recess 23 b is likely to occur in the flange 33 above the side circumferential surface 64 a of the circumferential groove 64 of the above movement.
  • the container member of the present invention is used for cooking food, fish meat, fruit, etc. After filling the food, it is sealed with a lid member, and then it is suitable for use as a sealed container or the like that can be stored at room temperature for a long period of time and then subjected to lettuce sterilization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Laminated Bodies (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

Elément de récipient pourvu d'une partie à bride formée du côté extérieur, constituée d'une structure stratifiée avec des couches à résine thermosoudables et des couches métalliques, semblable de par sa forme au corps en forme de gobelet d'un récipient utilisé comme contenant scellé pour la conservation prolongée de denrées alimentaires. On forme la périphérie extérieure de ladite bride pour en faire une partie enroulée (22) à section circulaire, qui est d'abord enroulée vers le bas dans la direction de la paroi latérale de l'élément de récipient, la surface supérieure (22a) de ladite partie enroulée étant située pratiquement sur le même niveau que la partie principale de la partie à bride ou légèrement au-dessous de cette partie principale. Pour fabriquer l'élément de récipient on forme d'abord un élément préformé doté d'une partie à collier (33) s'étendant dans le sens radial, ensuite on forme une partie spirale (34) à section circulaire à la périphérie de la partie de collier de manière que ladite partie spirale (34) soit enroulée d'abord dans le sens opposé à la paroi du côté de l'élément préformé, la surface supérieure de ladite partie spirale étant située plus haut que la partie à collier, après quoi on rabat ladite partie spirale en la faisant tourner autour de sa base, afin de former lesdites parties enroulées.
PCT/JP1987/000016 1986-01-20 1987-01-12 Elements de recipient et leur procede de fabrication Ceased WO1987004406A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61/9606 1986-01-20
JP61009609A JPS62168846A (ja) 1986-01-20 1986-01-20 容器部材とその製造方法

Publications (1)

Publication Number Publication Date
WO1987004406A1 true WO1987004406A1 (fr) 1987-07-30

Family

ID=11725037

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1987/000016 Ceased WO1987004406A1 (fr) 1986-01-20 1987-01-12 Elements de recipient et leur procede de fabrication

Country Status (3)

Country Link
JP (1) JPS62168846A (fr)
AU (1) AU6845587A (fr)
WO (1) WO1987004406A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380250A3 (fr) * 1989-01-25 1991-07-03 Anson Packaging Ltd. Articles thermoformés
GB2431388A (en) * 2005-05-05 2007-04-25 Europack S P A A container for foods
JP2012030539A (ja) * 2010-08-02 2012-02-16 Toyo Aluminum Ekco Products Kk 無延伸プラスチックからなる包装用成型品

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3995422B2 (ja) * 2001-01-24 2007-10-24 花王株式会社 容器
WO2013103884A1 (fr) * 2012-01-05 2013-07-11 Progressive Packaging Inc. Plateau de conditionnement en matériau durable et système de conditionnement et procédé de fabrication de celui-ci
NL1041060B1 (en) * 2014-11-24 2016-09-05 Dexter Mould Tech B V Method of and apparatus for manufacturing a plastic container having a curled rim.
CN112693649B (zh) * 2021-03-25 2021-07-30 湖南佳元禄食品有限公司 一种小型盒装酱料灌装设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316773A (en) * 1976-07-31 1978-02-16 Sekisui Chemical Co Ltd Plocess for making containers
JPS53151824U (fr) * 1977-05-02 1978-11-29
JPS57190779U (fr) * 1981-05-29 1982-12-03
JPS57190778U (fr) * 1981-05-29 1982-12-03
JPS59209532A (ja) * 1983-05-10 1984-11-28 東洋製罐株式会社 罐状積層容器
JPS6032024U (ja) * 1983-08-09 1985-03-05 株式会社　細川洋行 容器成形用シ−ト
JPS6135117U (ja) * 1984-07-31 1986-03-04 大阪瓦斯株式会社 冷凍食品用容器
JPS61110567U (fr) * 1984-12-22 1986-07-12

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138562U (fr) * 1974-09-11 1976-03-23
JPS54135242A (en) * 1978-03-13 1979-10-20 Shiyougo Hashimoto Preserving of food and like by closed container

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316773A (en) * 1976-07-31 1978-02-16 Sekisui Chemical Co Ltd Plocess for making containers
JPS53151824U (fr) * 1977-05-02 1978-11-29
JPS57190779U (fr) * 1981-05-29 1982-12-03
JPS57190778U (fr) * 1981-05-29 1982-12-03
JPS59209532A (ja) * 1983-05-10 1984-11-28 東洋製罐株式会社 罐状積層容器
JPS6032024U (ja) * 1983-08-09 1985-03-05 株式会社　細川洋行 容器成形用シ−ト
JPS6135117U (ja) * 1984-07-31 1986-03-04 大阪瓦斯株式会社 冷凍食品用容器
JPS61110567U (fr) * 1984-12-22 1986-07-12

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0380250A3 (fr) * 1989-01-25 1991-07-03 Anson Packaging Ltd. Articles thermoformés
GB2431388A (en) * 2005-05-05 2007-04-25 Europack S P A A container for foods
JP2012030539A (ja) * 2010-08-02 2012-02-16 Toyo Aluminum Ekco Products Kk 無延伸プラスチックからなる包装用成型品

Also Published As

Publication number Publication date
AU6845587A (en) 1987-08-14
JPS62168846A (ja) 1987-07-25

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