EP0045115B1 - Dispositif de lissage des parois d'objets étirés - Google Patents

Dispositif de lissage des parois d'objets étirés Download PDF

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Publication number
EP0045115B1
EP0045115B1 EP81200864A EP81200864A EP0045115B1 EP 0045115 B1 EP0045115 B1 EP 0045115B1 EP 81200864 A EP81200864 A EP 81200864A EP 81200864 A EP81200864 A EP 81200864A EP 0045115 B1 EP0045115 B1 EP 0045115B1
Authority
EP
European Patent Office
Prior art keywords
wall
ironing
recess
mandril
thickness
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
Application number
EP81200864A
Other languages
German (de)
English (en)
Other versions
EP0045115A1 (fr
Inventor
Gerrit Hendrik Groot Wassink
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.)
Thomassen and Drijver Verblifa NV
Original Assignee
Thomassen and Drijver Verblifa NV
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 Thomassen and Drijver Verblifa NV filed Critical Thomassen and Drijver Verblifa NV
Priority to AT81200864T priority Critical patent/ATE7367T1/de
Publication of EP0045115A1 publication Critical patent/EP0045115A1/fr
Application granted granted Critical
Publication of EP0045115B1 publication Critical patent/EP0045115B1/fr
Expired 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
    • 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

Definitions

  • the invention relates to a device for wall-ironing sleeves, e.g. can bodies, containers etcetera, having a wall portion near the open end with a thickness enlarged with respect to the wall thickness of the sleeve body, said device comprising at least two wall-ironing rings and a wall-ironing mandril movable through said rings and having a relatively broad cylindrical front part and a relatively narrow, cylindrical rear part.
  • a device for wall-ironing sleeves e.g. can bodies, containers etcetera
  • said device comprising at least two wall-ironing rings and a wall-ironing mandril movable through said rings and having a relatively broad cylindrical front part and a relatively narrow, cylindrical rear part.
  • Such a device is known e.g. from US-A-3945231.
  • a larger wall thickness of the aforesaid wall portion is necessary to be able to successfully carry out the following process steps, for example necking, flanging and folding.
  • the wall-forming mandril according to the prior art exhibits said relatively broad, cylindrical front part and the relatively narrow, cylindrical rear part.
  • the invention has for its object to provide a device by which the said wall thickness difference can be enlarged without the need for increasing the relative wall thickness reduction in the third ring, whilst it is avoided that the maximum permissible, relative wall thickness reduction is too closely approached or even exceeded.
  • the invention provides a device of the kind set forth in the preamble in which the front part of the wall-ironing mandril, at the end facing the rear part, exhibits an annular recess of a predetermined depth, the position of said recess being such that after having passed through the wall-ironing ring last but one the sleeve wall has at least partly reached the recess, and that the material being located at the area of the recess after having passed through the wall-ironing ring last but one is located at least partly at the rear part after having passed through the last wall-ironing ring.
  • the depth of the recess is preferably determined in connection with the desired enlargement of the difference in thickness between said wall portion of enlarged wall thickness and the sleeve body.
  • the invention furthermore provides a wall-ironing mandril having a relatively broad, cylindrical front part and a relatively narrow, cylindrical rear part for use in a device of the kind set forth, said wall-ironing mandril embodying the invention being characterized in that at its end facing the rear part the front part has an annular recess of predetermined depth.
  • Known means for advancing the wall-ironing mandril 1 in an axial direction relative to the unit 2, 3, 4, 5 indicated by an arrow are not shown.
  • a wall-ironed sleeve 6 is in the situation in which it is wall-ironed by the cooperation of the wall-ironing mandril 1 with the first wall-ironing ring 2.
  • Fig. 2 illustrates the next-following stage in which the sleeve 6 then wall-ironed is further wall-ironed by means of the second wall-ironing ring 3.
  • Fig. 3 illustrates the state in which during the third processing stage the wall-ironing sleeve is again subjected to a wall-ironing process by means of the third wall-ironing ring 4.
  • the wall-ironing mandril 1 exhibits a reduction in diameter from the first part to the rear. This step is designated in Figs. 2, 3, 4, 5, 6, 7, 8 and 9 by reference numeral 7.
  • Fig. 4 shows the end stage of the process. It is apparent from the drawing that by the cooperation of the wall-ironing mandril 1 with the third wall-ironing ring 4 the sleeve 6 is subjected to a last reduction in thickness. Owing to the presence of the step 7 the reduction is limited in the last case so that a thickened wall part is formed at the open end of the sleeve.
  • reference symbols a and b designate the wall thickness of the sleeve body and the thickened wall part at the open end of the sleeve 6, respectively.
  • the dimension a is 0.10mm and b 0.16mm in accordance with the foregoing.
  • FIGs. 6 to 9 schematically illustrate an embodiment of a device in accordance with the invention.
  • the processing stage of Fig. 6 corresponds with that of Fig. 3.
  • the processing stage of Fig. 8 corresponds with that of Fig. 4.
  • the wall-ironing mandril 8 embodying the invention shown in Figs. 6 to 9 has an annular recess 9. Referring to the description of the prior art and to Figs. 1 to 5 it will be obvious without further explanation how a wall-ironed sleeve 10 is deformed in the cold state by means of the device embodying the invention.
  • the proportioning of the device is chosen so that after having passed through the second wall-ironing ring 3 the sleeve wall has at least partly reached the recess 9 and that, moreover, the material located at the area of the recess 9 after the passage through the ring 3 is located at least partly in the area of the hindmost part of the wall-ironing mandril 8 after having passed through the ring 4, that is to say, the material forming the part of the relatively small diameter.
  • Figs. 7 and 9 show more in detail the deformation stages of the relevant part of the sleeve wall. In Figs. 7 and 9 some thicknesses are indicated by arrows. Reference line c corresponds to a thickness of 0.16 mm, d to 0.18 mm, e to 0.10mm,fto 0.12 mm and g to 0.18 mm.
  • Fig. 11 is a detailed view of a wall-ironing mandril 10 having a recess 11 in the form of an uninterrupted groove.
  • the structure of this mandril 10 corresponds with that of the mandril 8 of Figs. 6 to 9.
  • Fig. 11 shows a variant in which a wall-ironing mandril 12 has a recess 13 in the form of an additional step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Vending Machines For Individual Products (AREA)
  • Baking, Grill, Roasting (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Metal Extraction Processes (AREA)

Claims (4)

1. Dispositif pour étirer les parois de manchon ayant une partie de paroi près de l'extrémité ouverte avec une épaisseur augmentée par rapport à l'épaisseur de paroi du corps de manchon (10), ce dispositif comprenant au moins deux bagues d'étirage et un mandrin (1) d'étirage adapté à se déplacer à travers lesdites bagues et présentant une partie avant cylindrique relativement large et une partie arrière cylindrique relativement étroite, caractérisé en ce que la partie avant du mandrin d'étirage (1), à l'extrémite dirigée vers le partie arrière, présente un évidement (9, 11, 13) annulaire de profondeur prédéterminée, la position de cet évidement étant telle que après franchissement de l'avant dernière bague d'étirage (3) la paroi du manchon a atteint au moins en partie l'évidement (9, 11, 13), et telle que la matière se trouvant dans la zone d'évidement après franchissement de l'avant dernière bague d'étirage, se trouve au moins en partie sur la partie arrière après franchissement de la dernière bague d'étirage (4).
2. Dispositif selon a revendication 1, caractérisé en ce que la profondeur de l'évidement (9, 11, 13) est fonction de l'augmentation souhaitée de la différence d'épaisseur de paroi entre ladite partie de paroi d'épaisseur augmentée et le corps du manchon.
3. Mandrin d'étirage de paroi ayant une partie avant cylindrique relativement large et une partie arrière cylindrique relativement étroite employé avec un dispositif selon les revendications 1 ou 2, caractérisé en ce que à son extrémité dirigée vers la partie arrière la partie avant du mandrin (1) d'étirage présente un évidement annulaire de profondeur prédéterminée.
4. Mandrin d'étirage selon la revendication 3, caractérisé en ce que la largeur de l'évidement est de l'ordre de grandeur de 5 à 10 mm.
EP81200864A 1980-07-30 1981-07-30 Dispositif de lissage des parois d'objets étirés Expired EP0045115B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81200864T ATE7367T1 (de) 1980-07-30 1981-07-30 Behaelterwand-nachziehvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8004356 1980-07-30
NL8004356A NL8004356A (nl) 1980-07-30 1980-07-30 Duntrekinrichting.

Publications (2)

Publication Number Publication Date
EP0045115A1 EP0045115A1 (fr) 1982-02-03
EP0045115B1 true EP0045115B1 (fr) 1984-05-09

Family

ID=19835682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200864A Expired EP0045115B1 (fr) 1980-07-30 1981-07-30 Dispositif de lissage des parois d'objets étirés

Country Status (8)

Country Link
EP (1) EP0045115B1 (fr)
JP (1) JPS57115922A (fr)
AT (1) ATE7367T1 (fr)
AU (1) AU555312B2 (fr)
CA (1) CA1179206A (fr)
DE (1) DE3163500D1 (fr)
NL (1) NL8004356A (fr)
ZA (1) ZA814566B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165722U (ja) * 1983-04-21 1984-11-07 昭和アルミニウム株式会社 加工用金型
NL8401834A (nl) * 1984-06-08 1986-01-02 Thomassen & Drijver Werkwijze en inrichting voor het vervaardigen van een romp voor een houder, en een vervaardigde romp of houder.
JP3156296B2 (ja) * 1991-09-04 2001-04-16 トヨタ自動車株式会社 オーステナイト系ステンレス鋼製素材の円筒部のしごき法
US5329799A (en) * 1992-05-29 1994-07-19 Toyota Jidosha Kabushiki Kaisha Process and apparatus for press-forming tubular container-like article from strip, including forward and backward ironing steps
DE4443434A1 (de) * 1994-12-06 1996-06-20 Schmalbach Lubeca Wanddickenverteilung im Dosenmündungsabschnitt
JP4472429B2 (ja) * 2004-05-31 2010-06-02 ユニバーサル製缶株式会社 Ｄｉ缶の製造方法およびボトル缶
JP5015120B2 (ja) * 2008-11-25 2012-08-29 ユニバーサル製缶株式会社 Ｄｉ缶の製造装置
PT2476494E (pt) * 2011-01-12 2013-10-17 Ardagh Mp Group Netherlands Bv Pré-forma de recipiente de metal pressurizado e método de fazer a mesma
EP3633053A1 (fr) 2014-04-30 2020-04-08 Alcoa USA Corp. Procédé de fabrication d'un récipient d'aluminium fabriqué à partir de feuille d'aluminium
US20150343516A1 (en) * 2014-05-30 2015-12-03 Anheuser-Busch, Llc Two iron tool pack for forming tall metal bottle shaped containers
US11407022B2 (en) * 2018-02-06 2022-08-09 Tata Steel Ijmuiden B.V. Process and apparatus for the production of a can body by wall ironing
PL245172B1 (pl) * 2021-08-20 2024-05-27 Canpack Spolka Akcyjna Stempel oraz półprodukt i puszka wytworzone przy użyciu tego stempla

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406554A (en) * 1965-07-06 1968-10-22 Continental Can Co Apparatus for and method of forming containers
US3951296A (en) * 1971-09-02 1976-04-20 National Steel Corporation Reinforced wall-ironed container
US3945231A (en) * 1973-10-31 1976-03-23 Toyo Seikan Kaisha Limited Process and apparatus for preparation of thin walled cylindrical vessels
FR2255976A1 (en) * 1973-12-27 1975-07-25 Daiwa Can Co Ltd High speed mfr.of metal cans - with very thin wall, thickened at top to permit ejection without distortion
JPS588924B2 (ja) * 1974-03-22 1983-02-18 ヨシザキ コウゾウ イツタイカンセイケイゴ ノ カタヌキオヨウイニスル ホウホウ
DE2758254A1 (de) * 1977-12-27 1979-07-05 Krupp Gmbh Vorrichtung zum abstrecken und abstreifen einteiliger behaelterruempfe
JPS6011575B2 (ja) * 1978-07-26 1985-03-27 東洋製罐株式会社 金属製一体容器を製造する方法

Also Published As

Publication number Publication date
DE3163500D1 (en) 1984-06-14
EP0045115A1 (fr) 1982-02-03
CA1179206A (fr) 1984-12-11
AU555312B2 (en) 1986-09-18
NL8004356A (nl) 1982-03-01
JPS57115922A (en) 1982-07-19
ZA814566B (en) 1982-07-28
AU7347181A (en) 1982-02-04
ATE7367T1 (de) 1984-05-15

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