WO2018165429A1 - Appareil et procédé de ré-étirage de coupelle ayant un fond reformé - Google Patents

Appareil et procédé de ré-étirage de coupelle ayant un fond reformé Download PDF

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Publication number
WO2018165429A1
WO2018165429A1 PCT/US2018/021550 US2018021550W WO2018165429A1 WO 2018165429 A1 WO2018165429 A1 WO 2018165429A1 US 2018021550 W US2018021550 W US 2018021550W WO 2018165429 A1 WO2018165429 A1 WO 2018165429A1
Authority
WO
WIPO (PCT)
Prior art keywords
diameter
projection
cup
sidewall
radius
Prior art date
Application number
PCT/US2018/021550
Other languages
English (en)
Inventor
Richard L. LORD
Jason A. KAANTA
Christine N. BUCKLER
Joseph D. Bulso
William J. SIMMONS
Original Assignee
Ball Corporation
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 US15/453,139 external-priority patent/US20170197240A1/en
Application filed by Ball Corporation filed Critical Ball Corporation
Publication of WO2018165429A1 publication Critical patent/WO2018165429A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/24—Deep-drawing involving two drawing operations having effects in opposite directions with respect to the blank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/28—Deep-drawing of cylindrical articles using consecutive dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/30—Deep-drawing to finish articles formed by deep-drawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner

Definitions

  • the present invention provides novel methods and apparatus for forming a cup with a reformed closed end-wall having an inwardly oriented projection or protrusion for the purpose of reducing the overall height of the cup.
  • the cup may be formed into a container body of any size, shape, or type for any product.
  • One aspect of the present invention is to provide a cup with a reformed closed end-wall.
  • the cup generally comprises, but is not limited to, an open end, a sidewall, a closed end-wall, and an inwardly oriented protrusion formed in a portion of the closed end-wall.
  • the cup has a reduced height compared to a cup of a similar diameter formed from a blank of substantially the same size.
  • the apparatus generally comprises: (1) a pressure sleeve to clamp the metallic cup in a predetermined alignment with a redraw die, wherein the metallic cup includes an exterior sidewall interconnected to a closed end-wall by a first radius, the inwardly oriented projection comprising: (a) a projection sidewall
  • the outer-most diameter of the second radius is greater than the exterior diameter of the punch.
  • the projection sidewall has an outer diameter defined by an inner-most diameter of the second radius, the outer diameter of the projection sidewall being less than the exterior diameter of the punch.
  • the pressure sleeve has an interior diameter that is less than the outer-most diameter of the second radius.
  • the metallic container with the extended sidewall is formed without substantially changing a thickness of the closed end-wall of the metallic cup during the redrawing of the metallic cup.
  • a portion of the sidewall may decrease in thickness by up to about 90 percent of the original thickness of the metallic cup.
  • Another portion of the sidewall may thicken by up to about 115 percent of the original thickness proximate to an open end of the metallic container with the extended sidewall.
  • the extended sidewall of the metallic container has a length that is between about 30 percent to about 95 percent greater than the first height of the metallic cup exterior sidewall.
  • the closed end-wall and the projection of the metallic cup with the inwardly oriented projection have a substantially uniform thickness.
  • the height 58 of the finished cup 46 is decreased compared to the height of the cup 13 formed by the prior art method. Accordingly, existing tooling and bodymakers can be used to form cups 46 into container bodies that are larger. In this manner, container bodies with an increased height and/or an increased diameter can be formed.
  • the finished cup 46 has a height 58 that is less than the height of the formed cup 13 formed using the prior art method and apparatus, although the diameter 48 of the blanks 8, 38 used to form cups 13, 46 are substantially equal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

La présente invention concerne un appareil et un procédé pour former une coupelle métallique qui est ensuite reformée en un corps de récipient. De manière plus spécifique, la présente invention concerne un appareil et des procédés utilisés pour former une coupelle métallique ayant un fond reformé présentant une saillie orientée vers l'intérieur. La saillie orientée vers l'intérieur réduit une hauteur de la coupelle métallique, mais utilise la même quantité de matériau de base métallique qu'une coupelle plus grande ayant sensiblement le même diamètre et n'ayant pas de saillie vers l'intérieur. La coupelle métallique peut être ré-étirée par un procédé et un appareil de la présente invention pour former une coupelle métallique ayant une paroi latérale étendue. La coupelle métallique ayant la paroi latérale étendue peut être convertie en un corps de récipient d'une taille et d'une forme préférées.
PCT/US2018/021550 2017-03-08 2018-03-08 Appareil et procédé de ré-étirage de coupelle ayant un fond reformé WO2018165429A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/453,139 US20170197240A1 (en) 2014-10-28 2017-03-08 Apparatus and Method for Redrawing a Cup with a Reformed Bottom
US15/453,139 2017-03-08

Publications (1)

Publication Number Publication Date
WO2018165429A1 true WO2018165429A1 (fr) 2018-09-13

Family

ID=63448027

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/021550 WO2018165429A1 (fr) 2017-03-08 2018-03-08 Appareil et procédé de ré-étirage de coupelle ayant un fond reformé

Country Status (1)

Country Link
WO (1) WO2018165429A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111679A (en) * 1989-06-27 1992-05-12 Toyo Seikan Kaisha, Ltd. Method for forming barrel for two-piece can
US5394727A (en) * 1993-08-18 1995-03-07 Aluminum Company Of America Method of forming a metal container body
US20130098926A1 (en) * 2010-04-13 2013-04-25 Crown Packaging Technology, Inc. Can manufacture
US20160114371A1 (en) * 2014-10-28 2016-04-28 Ball Corporation Apparatus and Method for Forming a Cup with a Reformed Bottom

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111679A (en) * 1989-06-27 1992-05-12 Toyo Seikan Kaisha, Ltd. Method for forming barrel for two-piece can
US5394727A (en) * 1993-08-18 1995-03-07 Aluminum Company Of America Method of forming a metal container body
US20130098926A1 (en) * 2010-04-13 2013-04-25 Crown Packaging Technology, Inc. Can manufacture
US20160114371A1 (en) * 2014-10-28 2016-04-28 Ball Corporation Apparatus and Method for Forming a Cup with a Reformed Bottom

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