EP0136953A2 - Verfahren zum Erzeugen einer dreifachen Falzverbindung - Google Patents

Verfahren zum Erzeugen einer dreifachen Falzverbindung Download PDF

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Publication number
EP0136953A2
EP0136953A2 EP84401951A EP84401951A EP0136953A2 EP 0136953 A2 EP0136953 A2 EP 0136953A2 EP 84401951 A EP84401951 A EP 84401951A EP 84401951 A EP84401951 A EP 84401951A EP 0136953 A2 EP0136953 A2 EP 0136953A2
Authority
EP
European Patent Office
Prior art keywords
edge
hook
crimping
triple
profile
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Withdrawn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
EP84401951A
Other languages
English (en)
French (fr)
Other versions
EP0136953A3 (de
Inventor
Lucien Le Bret
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.)
Gallay SA
Original Assignee
Gallay 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 Gallay SA filed Critical Gallay SA
Publication of EP0136953A2 publication Critical patent/EP0136953A2/de
Publication of EP0136953A3 publication Critical patent/EP0136953A3/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B21D51/30—Folding the circumferential seam
    • B21D51/32—Folding the circumferential seam by rolling
    • 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
    • B21D51/2615—Edge treatment of cans or tins
    • 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
    • B21D51/2615—Edge treatment of cans or tins
    • B21D51/263—Flanging

Definitions

  • the present invention relates to a process for producing triple crimping.
  • This process was essentially characterized in that the radial pushing took place at first on the edge of the bottom, so as to first cause a winding of the latter alone around the edge of the body, to create opposite this the latter a support line allowing the rolling of the end of said edge of the body to start in an intermediate zone of the radial extent thereof.
  • the problem to be solved remains to achieve under the best industrial conditions a crimping of the bottom and body edges combining maximum strength and perfect sealing; the present invention provides a new process for obtaining a triple crimp, this process being essentially characterized by an operation for preparing the body edge.
  • Such a preparation of the body edge comprises according to the invention, the printing of a hook profile in an end part of the body, this operation being able to be carried out prior to the edge falling operation.
  • the body 10 of generally cylindrical shape of a metal barrel is subjected, according to Figure 1, to a preparatory operation of its end 11 intended to be closed by a bottom to be crimped.
  • the axially projecting part 12 is introduced into the terminal part adjacent to the end 11. of a mandrel 13 having a groove 14 opposite a wheel 15 of suitable profile, by attacking the external face of the wall of the body, to push this wall towards the bottom of the groove 14.
  • a root branch 18 of the hook 19 is directed inwards and situated between the top of the hook and the straight part of the body 10.
  • the following operation is the forming of a crimping edge 21 obtained by the conventional intervention of a press and a tool 22 for dropping the edges of the usual type comprising a fitting part 23 and a flared discharge area 24 limited by an abutment flange 25.
  • the crimping edge 21 is generally folded thus in a plane substantially perpendicular to the axis of the body while having, radially inside the rod profile hook 19 previously formed, a depression marked at 26, while the flat edge formed by the spout 20, having undergone a rotation of about 90 ° is slightly inclined towards the inside of the body.
  • the third step is the installation in the annular impression 26, of a plastic material called a seal; this operation can advantageously be carried out with a roller, the joint material being at this stage in a fluid state.
  • FIG. 3 shows the result of the following stage of the establishment of a bottom 28 with a fitting part 29 and a bottom edge 30 extending in direction radial over a predetermined distance beyond the spout 20 of the crimping edge 21 of the body 10 and ending in a peripheral hem 31 previously formed according to a usual technique. It can be seen that the cavity 26 for receiving the seal 27 extends over the major part of the body edge 21 upstream of the hook 19 on which the bottom edge 30 bears.
  • FIGS. 4 to 9 show successive stages of this final phase of triple crimping by coiling the bottom edge and the body edge together.
  • the hook 19 and the hem 31 will be designated therein by references assigned with corresponding indices in the successive states which they may take.
  • the step of FIG. 5 includes an accentuation of the deformation of this part bordering the bottom edge, the bottom edge hem, that is 31 1 , approaching the spout 19.
  • Figure 6 marks the beginning of the joint deformation of the body edge 21, the hook of the body edge being pushed back in 19 1 by the adjacent area of the bottom edge whose hem 31 2 begins to penetrate inside said hook 1 9 1 .
  • the continuation of the winding results in a more extensive wrapping of the body edge by the bottom edge, the hem of the bottom edge being at 31 3 and the hook of the body edge in 19 2 .
  • the top of the hem 31 4 of the bottom edge has come into abutment against the body edge 21 1 while the beak 20 of the hook 19 3 is placed opposite the puncture of the bottom edge hem at 31 4 .
  • FIG. 9 illustrates the end of this final phase: a triple crimping comprising seven thicknesses of material.
  • the small bordering edge 20 retains its predetermined dimension in the preparatory phase (FIG. 1) and is found at the heart of the setting with seven sheet thicknesses.
  • the present invention is not limited to the embodiment described but encompasses any variant.
  • the location of the seal it naturally remains possible to provide instead of or in addition to the installation of a seal in the concave impression formed according to the present invention in the edge of the body, the conventional installation of a seal in the bottom edge, in particular in the end hem 31 thereof.
  • the hook 19 it can be obtained by any means other than a mandrel and a thumbwheel, for example by the use of suitable jaws of conformation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
EP84401951A 1983-09-30 1984-09-28 Verfahren zum Erzeugen einer dreifachen Falzverbindung Withdrawn EP0136953A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8315596 1983-09-30
FR8315596A FR2552689B1 (fr) 1983-09-30 1983-09-30 Procede d'obtention d'un sertissage triple

Publications (2)

Publication Number Publication Date
EP0136953A2 true EP0136953A2 (de) 1985-04-10
EP0136953A3 EP0136953A3 (de) 1985-05-08

Family

ID=9292699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401951A Withdrawn EP0136953A3 (de) 1983-09-30 1984-09-28 Verfahren zum Erzeugen einer dreifachen Falzverbindung

Country Status (2)

Country Link
EP (1) EP0136953A3 (de)
FR (1) FR2552689B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7846555B2 (en) * 2006-02-02 2010-12-07 Honda Motor Co., Ltd. Panel fastening method and panel member for automobile

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263636A (en) * 1961-09-11 1966-08-02 Clarence J Smith Container and method of making
US3367533A (en) * 1964-12-11 1968-02-06 American Can Co Container seam and method of making same
FR1447436A (fr) * 1965-06-18 1966-07-29 Futs Metalliques Gallay S A Perfectionnements à la fabrication de récipients et de fûts métalliques
DE6930609U (de) * 1969-07-29 1969-12-11 Alois Heger Futtermischvorrichtung
BE754118A (fr) * 1969-08-01 1971-01-29 Leer Koninklijke Emballage Joint d'assemblage et procede de fabrication de ce joint
US3765351A (en) * 1971-04-09 1973-10-16 American Can Co Method and apparatus for beading, necking-in and flanging metal can bodies
US3754424A (en) * 1972-05-17 1973-08-28 Gulf & Western Ind Prod Co Method for necking-in can bodies
FR2319439A1 (fr) * 1975-07-31 1977-02-25 Gallay Sa Perfectionnement au procede de realisation du triple sertissage
GB2098523B (en) * 1981-05-14 1984-08-22 Wellman Furnaces Ltd Securing end covers to rotationally symmetric bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7846555B2 (en) * 2006-02-02 2010-12-07 Honda Motor Co., Ltd. Panel fastening method and panel member for automobile

Also Published As

Publication number Publication date
EP0136953A3 (de) 1985-05-08
FR2552689A1 (fr) 1985-04-05
FR2552689B1 (fr) 1987-06-19

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19850530

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Inventor name: LE BRET, LUCIEN