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EP0507380B1 - Appareil pour former un rétrécissement à l'extrémité ouverte d'une boîte métallique - Google Patents

Appareil pour former un rétrécissement à l'extrémité ouverte d'une boîte métallique Download PDF

Info

Publication number
EP0507380B1
EP0507380B1 EP92200838A EP92200838A EP0507380B1 EP 0507380 B1 EP0507380 B1 EP 0507380B1 EP 92200838 A EP92200838 A EP 92200838A EP 92200838 A EP92200838 A EP 92200838A EP 0507380 B1 EP0507380 B1 EP 0507380B1
Authority
EP
European Patent Office
Prior art keywords
support member
roller
freely
constriction
end zone
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
EP92200838A
Other languages
German (de)
English (en)
Other versions
EP0507380A1 (fr
Inventor
Gerrit Willem Brilman
Johan Willem Roeterdink
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
Priority claimed from NL9101493A external-priority patent/NL9101493A/nl
Application filed by Thomassen and Drijver Verblifa NV filed Critical Thomassen and Drijver Verblifa NV
Publication of EP0507380A1 publication Critical patent/EP0507380A1/fr
Application granted granted Critical
Publication of EP0507380B1 publication Critical patent/EP0507380B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D51/2615—Edge treatment of cans or tins
    • B21D51/2638—Necking
    • 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

Definitions

  • the invention relates to a device for forming a constriction on the open end zone of a metal can with a cylindrical body, having a longitudinal axis comprising:
  • Such a device is known from e.g. US-A-4 450 700.
  • the operation is terminated at the moment when the constriction has reached the desired length.
  • the shape is determined by the form of the anvil and the freely-rotating roller.
  • the freely-rotating roller according to this prior art reference has a rotational axis with the same direction as the axis of the metal can.
  • the device mentioned in the preamble has the feature that the rotational axis of the freely-rotating roller forms a small angle with the direction of the central axis, such that the material of the open end zone of a metal can supported by the first support member in a device being operative seeks a path between the anvil and the roller.
  • a particular embodiment has the feature that the angle has a value in the order of magnitude of 0,5°.
  • the bearing construction for the freely-rotating roller revolves with respect to the fixedly disposed can. This permits a very simple construction. It will be apparent that the complementary arrangement is also possible. What is important here is the relative movement of the roller relative to the can.
  • the roller and the anvil must be very hard.
  • use can for instance be made of hard-metal or another material with a very high wear resistance and hardness.
  • a certain flexibility in the construction can be useful in order to properly position the co-acting surfaces relative to one another under all conditions. Excessive rigidity in the construction can result in extremely great forces which could have an adverse effect on the useful life of the device.
  • Figures 1 and 2 show a device 1 for forming a constriction 2 on the open end zone of a metal can 3 with a cylindrical body, which device comprises: a support member 4 for supporting the bottom 5 of the can 3 and for pushing displacement thereof in axial direction 6 by means of a pushing member 7 which is controlled in suitable manner by a control unit (not shown); an annular anvil 8 placed coaxially of this support member 4, on the inner side of which facing the support member 4 an internal modelling surface 9 is present which in the direction away from the support member 4 has a form adapted to the desired shape of the constriction 2; and a freely-rotating roller 10 likewise having a form adapted to that of the desired constriction 2 and therefore to the shape of the modelling surface 9, which roller 10 can press the end zone of the positioned can 3 forcefully against the modelling surface 9, which roller 10 is carried by a support member 11 which forms part of a rotor 12 with an externally placed pinion 13 that co-acts with a drive gear wheel 14 which is connected to a drive motor (
  • the support member 4 is guided slidably in axial direction in a cylinder block 16 which forms part of a frame 17 in which the anvil ring is clamped and to which the rotor 12 is rotatably connected by means of a bearing unit 18.
  • the support member 11 is pivotally connected via a pivot shaft 19 to the rotor 12.
  • the views according to figures 1 and 2 should be understood such that in the situation shown therein the freely-rotating roller 10 engages forcibly in a direction containing at least a considerable radial component.
  • the rotational sense of rotor 12 is indicated by 20.
  • the axis of rotation 15 of the freely-rotating roller 10 lies substantially in a tangential plane and forms an angle of roughly 0.5° with the said axial direction 6.
  • Figures 1 and 2 show this angle in a somewhat exaggerated manner for the sake of clarity.
  • the rotor 12 is supported on the one side by a pressure spring 21 and is placed in a sloping position counter to the action of the pressure spring by means of an adjusting screw 22 protruding outside the rotor 12.
  • the freely-rotating roller 10 is supported rotatably by the support member 11 by means of a roller bearing 24.
  • Figure 3 shows the co-acting shapes of the modelling surface 9 of the anvil 8 and the roller 10.
  • a can 3 is introduced into the transition zone between the anvil 8 and roller 10. Due to the rolling movement of roller 10 over the annular inner surface of the anvil 8 the can is pulled inward with its open end zone 23, whereby the constriction 2 is formed, as is shown in figure 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Discharge Heating (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Spark Plugs (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Claims (2)

  1. Dispositif (1) pour former un étranglement (2) sur une zone d'extrémité ouverte d'une boîte métallique (3) ayant une partie principale cylindrique avec un axe longitudinal, comprenant :
    (1) un premier élément support (4) pour supporter le fond (5) de la boîte (3), et pour solliciter ladite boîte (3) le long d'un axe central (6) du dispositif (1), ledit axe central (6) coïncidant avec ledit axe longitudinal ;
    (2) une enclume annulaire (8) montée coaxiale avec ledit premier élément support (4), sur la face intérieure de laquelle se trouve une surface interne de formage (9) ayant une forme adaptée à la forme souhaitée pour l'étranglement (2) ; et
    (3) un galet en rotation libre (10), ayant une forme adaptée à la forme de la surface de formage (9), lequel galet (10) peut appuyer sur la zone d'extrémité d'une boîte (3), en étant poussé par ledit premier élément support (4) à force contre la surface de formage (9), lequel galet (10) est porté par un second élément support (11), entraîné par des moyens d'entraînement (12, 13, 14) sur une trajectoire circulaire concentrique avec ladite surface annulaire de formage (9), dans laquelle l'axe de rotation (15) du galet en rotation libre (10) se situe dans un plan tangentiel à un cylindre ayant l'axe central (6) comme axe longitudinal, caractérisé en ce que l'axe de rotation (15) du galet en rotation libre (10) forme un petit angle avec la direction de l'axe central (6), de manière que le matériau de la zone d'extrémité ouverte d'une boîte métallique (3), supportée par le premier élément support (4) dans un dispositif puisse se trouver un passage entre l'enclume (8) et le galet (10.
  2. Dispositif selon la revendication 1, caractérisé en ce que l'angle a une valeur de l'ordre de 0,5°.
EP92200838A 1991-04-03 1992-03-23 Appareil pour former un rétrécissement à l'extrémité ouverte d'une boîte métallique Expired - Lifetime EP0507380B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL9100574 1991-04-03
NL9100574 1991-04-03
NL9101493 1991-09-04
NL9101493A NL9101493A (nl) 1991-04-03 1991-09-04 Inrichting voor het vormen van een vernauwing aan de open eindzone van een metalen bus.

Publications (2)

Publication Number Publication Date
EP0507380A1 EP0507380A1 (fr) 1992-10-07
EP0507380B1 true EP0507380B1 (fr) 1995-10-18

Family

ID=26646833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92200838A Expired - Lifetime EP0507380B1 (fr) 1991-04-03 1992-03-23 Appareil pour former un rétrécissement à l'extrémité ouverte d'une boîte métallique

Country Status (13)

Country Link
EP (1) EP0507380B1 (fr)
JP (1) JPH0687045A (fr)
AT (1) ATE129172T1 (fr)
AU (1) AU644728B2 (fr)
CA (1) CA2063863A1 (fr)
CZ (1) CZ282918B6 (fr)
DE (1) DE69205473T2 (fr)
DK (1) DK0507380T3 (fr)
ES (1) ES2089361T3 (fr)
GR (1) GR3018589T3 (fr)
PL (1) PL168821B1 (fr)
RU (1) RU2107198C1 (fr)
SK (1) SK279427B6 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5813267A (en) * 1996-02-28 1998-09-29 Crown Cork & Seal Company, Inc. Methods and apparatus for reducing flange width variations in die necked container bodies
US6032502A (en) * 1998-08-31 2000-03-07 American National Can Co. Apparatus and method for necking containers
AR027371A1 (es) 2000-02-10 2003-03-26 Envases Uk Ltd Deformacion de cuerpos de pared delgada
IT1319569B1 (it) * 2000-12-18 2003-10-20 Frattini Costr Mecc Dispositivo per la deformazione di corpi estrusi o imbutiti.
CN110871226A (zh) * 2018-08-30 2020-03-10 爱孚迪(上海)制造系统工程有限公司 一种预滚边装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1842447A (en) * 1929-02-13 1932-01-26 American Can Co Apparatus for preparing drum head can bodies
US3754424A (en) * 1972-05-17 1973-08-28 Gulf & Western Ind Prod Co Method for necking-in can bodies
US3898828A (en) * 1973-10-01 1975-08-12 American Can Co Die assembly and method for interior roll-necking-in a tubular member
DE2847736A1 (de) * 1978-11-03 1980-05-22 Schuler Gmbh L Vorrichtung zum herstellen einer sicke am umfang eines hohlzylinders
US4450700A (en) * 1982-11-15 1984-05-29 Reynolds Metals Company Method and apparatus for necking and flanging container bodies

Also Published As

Publication number Publication date
AU1399692A (en) 1992-10-08
RU2107198C1 (ru) 1998-03-20
CS101892A3 (en) 1992-10-14
CZ282918B6 (cs) 1997-11-12
PL294070A1 (en) 1993-03-08
ES2089361T3 (es) 1996-10-01
CA2063863A1 (fr) 1992-10-04
AU644728B2 (en) 1993-12-16
EP0507380A1 (fr) 1992-10-07
DE69205473T2 (de) 1996-03-14
ATE129172T1 (de) 1995-11-15
JPH0687045A (ja) 1994-03-29
SK279427B6 (sk) 1998-11-04
GR3018589T3 (en) 1996-04-30
DE69205473D1 (de) 1995-11-23
PL168821B1 (pl) 1996-04-30
DK0507380T3 (da) 1995-11-27

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