EP0131159A2 - Procédé et dispositif pour former des rainures dans un corps de boîte - Google Patents

Procédé et dispositif pour former des rainures dans un corps de boîte Download PDF

Info

Publication number
EP0131159A2
EP0131159A2 EP84106484A EP84106484A EP0131159A2 EP 0131159 A2 EP0131159 A2 EP 0131159A2 EP 84106484 A EP84106484 A EP 84106484A EP 84106484 A EP84106484 A EP 84106484A EP 0131159 A2 EP0131159 A2 EP 0131159A2
Authority
EP
European Patent Office
Prior art keywords
stamps
grooves
tin body
ridges
driving means
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.)
Granted
Application number
EP84106484A
Other languages
German (de)
English (en)
Other versions
EP0131159B1 (fr
EP0131159A3 (en
Inventor
Willem Pieter Post
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 AT84106484T priority Critical patent/ATE29847T1/de
Publication of EP0131159A2 publication Critical patent/EP0131159A2/fr
Publication of EP0131159A3 publication Critical patent/EP0131159A3/en
Application granted granted Critical
Publication of EP0131159B1 publication Critical patent/EP0131159B1/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
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing

Definitions

  • the invention relates to a method and a device for making grooves in the body of a tin.
  • Radial grooves are provided in tin bodies for stiffening the tin wall to an extent such that a smaller wall thickness can be sufficient. This results in saving of material.
  • the application of radial grooves caused some strength reduction in an axial direction.
  • a reduction of axial length is caused by radial grooves.
  • In order to optimize the radial strengthening with an acceptable axial strength grooves of accurately defined depth and profile have to be made. Only with an optimum shape and size of the grooves it is possible to minimize the wall thickness.
  • the object of the invention is to obviate these disadvantages by providing a novel method of making grooves in tin bodies.
  • grooves are made in a tin body by arranging the wall of the tin body between tools radially displaceable in opposite senses towards the tin body, one tool being provided with ridges and the other tool with grooves registering with the ridges, said tools being subsequently moved towards one another.
  • the ridged tool is moved to form the grooves so that the second tool serves as a counter-bearing.
  • the method can be carried out by a device characterized by circularly arranged, vertically outwardly movable first stamps, first driving means for the radial movement of said first stamps, radially inwardly movable second stamps arranged in a circle around the first stamps, second driving means for moving said second stamps, said stamps being respectively provided with registering ridges and grooves and being movable between a first open position leaving a gap between the stamps and a closed position in which the ridges engage in the grooves and by transport means for moving a tin body axially into and out of said gap respectively.
  • the on-going stroke of the transport means can be limited.
  • the resilient stop stretches the tin body. Since only the outer ridged stamps are radially displaced, the second tool serves as a counter-bearing.
  • the driving means can be actuated synchronously by means of an axially movable plunger.
  • the driving means may each have a bevelled face co-operating with a bevelled part of the associated stamp.
  • a tin body 1 is introduced between two stamps 2 and 3, one stamp 2 having ridges 4 and the other stamp 3 having grooves 5 registering with the ridges.
  • the stamps 2 and 3 are driven by first and second driving means 6 and 7 respectively.
  • the driving means 6 and 7 and the co-operating faces of the stamps 2 and 3 are formed so that during the first part of the axially directed stroke of the driving means 6, 7 (see Fig. 2) the stamps 2 and 3 are radially moved towards one another, whereas during the last part of the stroke (see Fig. 3) solely stamp 2 is radially moved and hence stamp 3 serves as a counter-bearing.
  • the radial movement producing the grooves in the tin body 1 is, therefore, performed solely by stamp 2.
  • the driving means 6, 7 move in opposite axial directions, the stamps 2 and 3 move radially in opposite senses and the tin body is again released.
  • Fig. 5 schematically shows the way in which tins 1 are fed to a device as shown in Figs. 6 and 7 in which the assembly of Figs. 1 to 4 is arranged.
  • the tins (Fig. 5) are moved by a worm conveyor 8 in a feeder 9 into a device embodying the invention, which comprises in this embodiment six identical processing stations 10.
  • a tin body 1 is moved to a processing station 10.
  • the unit with the stamps is fixed by means of a cap nut 12 to a plunger housing 13 of an upper plunger 14.
  • the plunger 14 is driven by a profiled upper disc 15 and a roller 16.
  • the tin body 1 is moved upwards by means of a lower plunger 17 driven by a lower disc 18 into the unit 11.
  • the tin body 1 is then enclosed in the feed head 19.
  • the upper part can be set in height with the aid of a setting spindle 20. In this way the desired setting for the tin height can be chosen. Since the upper part is adjustable, there is no need for setting a lower part and hence of the feeding part of the tin bodies.
  • the tin body 1 is introduced into the gap between the stamps 2 and 3 up to a resilient stop 22.
  • the spring 23 ensures the ejection of the tin body.
  • the driving means for the stamps 2 and 3, and 6, 7 respectively and the part 24 are fastened to the plunger 14 with the interposition of a spring structure 25.
  • the cylindrical part 21 serves as a guide for the moving parts.
  • the driving means 6 and 7 move the stamps 2 and 3 in a manner such that the stamps 3 move radially outwards and engage the tin body.
  • the stroke of the driving means 7 is limited by the stop 26.
  • the driving means 6 for the stamps 2 are moved axially so that the stamps 2 perform a radially inward movement and make the grooves in the tin body 1, whilst the inner stamps 3 serve as counter-bearings.
  • the plunger 14 moves in the opposite axial direction so that again a gap is formed between the stamps 2 and 3.
  • the tin body is then moved to the outside by the head provided with magnets.
  • Fig. 8 shows that the stamps 2 and 3 are disposed opposite one another in segments of a circle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating With Molten Metal (AREA)
  • Forging (AREA)
  • Coating Apparatus (AREA)
  • Press Drives And Press Lines (AREA)
EP84106484A 1983-06-09 1984-06-06 Procédé et dispositif pour former des rainures dans un corps de boîte Expired EP0131159B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106484T ATE29847T1 (de) 1983-06-09 1984-06-06 Verfahren und vorrichtung zum formen von rillen in einen dosenmantel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8302057A NL8302057A (nl) 1983-06-09 1983-06-09 Werkwijze en inrichting voor het in een busromp aanbrengen van groeven.
NL8302057 1983-06-09

Publications (3)

Publication Number Publication Date
EP0131159A2 true EP0131159A2 (fr) 1985-01-16
EP0131159A3 EP0131159A3 (en) 1985-07-03
EP0131159B1 EP0131159B1 (fr) 1987-09-23

Family

ID=19841981

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84106484A Expired EP0131159B1 (fr) 1983-06-09 1984-06-06 Procédé et dispositif pour former des rainures dans un corps de boîte

Country Status (4)

Country Link
EP (1) EP0131159B1 (fr)
AT (1) ATE29847T1 (fr)
DE (1) DE3466360D1 (fr)
NL (1) NL8302057A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193589B1 (fr) * 1984-09-04 1989-04-12 DIETZEL, Klaus Appareil et procédé pour produire les douilles de serrage pour tuyaux

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890039A (en) * 1930-12-26 1932-12-06 Max Ams Machine Co Shaping and flanging hachine
DE1452774B2 (de) * 1963-09-18 1974-04-11 Metal Containers Ltd., London Vorrichtung zum Ausformen einer Anzahl von Umfangssicken in einem Blechrohling
US4380165A (en) * 1980-05-29 1983-04-19 Thomassen & Drijver-Verblifa N.V. Squeezer flanger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890039A (en) * 1930-12-26 1932-12-06 Max Ams Machine Co Shaping and flanging hachine
DE1452774B2 (de) * 1963-09-18 1974-04-11 Metal Containers Ltd., London Vorrichtung zum Ausformen einer Anzahl von Umfangssicken in einem Blechrohling
US4380165A (en) * 1980-05-29 1983-04-19 Thomassen & Drijver-Verblifa N.V. Squeezer flanger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0193589B1 (fr) * 1984-09-04 1989-04-12 DIETZEL, Klaus Appareil et procédé pour produire les douilles de serrage pour tuyaux

Also Published As

Publication number Publication date
ATE29847T1 (de) 1987-10-15
EP0131159B1 (fr) 1987-09-23
DE3466360D1 (en) 1987-10-29
EP0131159A3 (en) 1985-07-03
NL8302057A (nl) 1985-01-02

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