EP0004252A1 - Procédé pour la fabrication d'un entonnoir de boîtes d'aérosol - Google Patents

Procédé pour la fabrication d'un entonnoir de boîtes d'aérosol Download PDF

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Publication number
EP0004252A1
EP0004252A1 EP79810021A EP79810021A EP0004252A1 EP 0004252 A1 EP0004252 A1 EP 0004252A1 EP 79810021 A EP79810021 A EP 79810021A EP 79810021 A EP79810021 A EP 79810021A EP 0004252 A1 EP0004252 A1 EP 0004252A1
Authority
EP
European Patent Office
Prior art keywords
funnel
crack
collar
weakening
deep
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
EP79810021A
Other languages
German (de)
English (en)
Other versions
EP0004252B1 (fr
Inventor
Werner Diemi
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.)
Styner and Bienz AG
Original Assignee
Styner and Bienz AG
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 Styner and Bienz AG filed Critical Styner and Bienz AG
Publication of EP0004252A1 publication Critical patent/EP0004252A1/fr
Application granted granted Critical
Publication of EP0004252B1 publication Critical patent/EP0004252B1/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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/40—Making outlet openings, e.g. bung holes
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • 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
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs

Definitions

  • the present invention relates to a method for producing an aerosol funnel or aerosol can lid, in which a sheet metal disk is deeply broken out to the funnel, then a circular central part is mechanically broken out and finally the remaining opening collar is rolled up.
  • the deep-drawn funnel for breaking out the circular central part is held in a tool and the central part is torn out by a stamp coming from the inside.
  • the invention has for its object to avoid the disadvantages mentioned and to significantly reduce the risk of cracking at the edge of the opening collar when rolling the same.
  • This goal is achieved by pressing a weakening gap into the deep-drawn funnel along which the middle section is then broken out.
  • the middle part breaks out, not only do the tensile stresses at the crack point become considerably lower, but the material is subjected to pressure at the edge of the opening collar that arises after pressing in a weakening crack. It has been shown that under these circumstances the formation of cracks at the edge of the opening collar when rolling it in is significantly less and that relatively hard, brittle sheet metal, for example the Weissbl ;; h known under the name "TEMPER 3", can be processed without further notice.
  • a weakening crack with a large angle of aperture is pressed, for example, 90 0, the crack occurs laterally whereby a considerable Verförmung and compressive stress of the material.
  • FIG 3 shows.
  • An annular tool 5 is now lowered against the funnel, the edge of which impresses a circular weakening crack 6 approximately in the middle of the rounded transition point between the collar 3 and the base 4.
  • the aperture angle of this weakening crack is relatively large and is 90 in the illustrated embodiment 0th However, it could, under certain circumstances, be even larger by appropriately shaping the tool 5 on its embossed edge.
  • the funnel provided with the weakening crack 6 arrives at a further station of the tool on a hollow punch 7.
  • the bottom 4 is pressed down by the hollow punch 7 by means of a punch 8 lowered from above, being torn off from the collar 3 along the weakening crack 6 .
  • the deep-drawn cover 4 comes under a shoulder 9 in the bore of the hollow punch 7 and can no longer emerge upwards when the punch 8 is subsequently raised.
  • the cover is separated from the collar 3 by radially inward forces, and these Forces are relatively low thanks to the weakening groove 6, so that the compressive stresses mentioned essentially remain on the resulting upper edge of the collar 3.
  • the body 1 When the cover is torn off, the body 1 is fixed in its position so that it cannot move upward in its position due to the radial forces that occur.
  • the funnel is then removed from the hollow punch 7 according to FIG. 2 and the collar 3 is rolled up in a manner known per se in order to form an edge bead.
  • This bead is indicated in dash-dotted lines in Fig. 2 and designated 10.
  • An advantage of the method according to the invention is that the tools 2 and 5 and of course also the tool parts 7 and 8 do not have to be very precise, since they can never come into direct contact with one another and consequently can also be produced from very hard material. The wear is therefore extremely low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Punching Or Piercing (AREA)
  • Nozzles (AREA)
EP79810021A 1978-03-08 1979-03-05 Procédé pour la fabrication d'un entonnoir de boîtes d'aérosol Expired EP0004252B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2506/78 1978-03-08
CH250678A CH626545A5 (fr) 1978-03-08 1978-03-08

Publications (2)

Publication Number Publication Date
EP0004252A1 true EP0004252A1 (fr) 1979-09-19
EP0004252B1 EP0004252B1 (fr) 1982-05-12

Family

ID=4235325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79810021A Expired EP0004252B1 (fr) 1978-03-08 1979-03-05 Procédé pour la fabrication d'un entonnoir de boîtes d'aérosol

Country Status (4)

Country Link
US (1) US4290294A (fr)
EP (1) EP0004252B1 (fr)
JP (1) JPS54131480A (fr)
CH (1) CH626545A5 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013015051A1 (de) * 2013-09-12 2015-03-12 G. Staehle Gmbh U. Co. Kg Verfahren zur Herstellung eines Rohlings einer Dose
CN112605258A (zh) * 2020-11-30 2021-04-06 宝山钢铁股份有限公司 一种气雾罐的加工模具及方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391351B (de) * 1985-11-06 1990-09-25 Steyr Daimler Puch Ag Zweitakt-brennkraftmaschine mit kurbelgehaeusespuelung und einer duese zur kraftstoffeinspritzung
JPS6462231A (en) * 1987-09-01 1989-03-08 Shiseido Co Ltd Metal made container and its production
JPS6462232A (en) * 1987-11-11 1989-03-08 Shiseido Co Ltd Aerosol container and its production
US8118197B2 (en) * 2007-06-18 2012-02-21 Precision Valve Corporation Method of making aerosol valve mounting cups and resultant cups

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772735A (en) * 1953-10-09 1956-12-04 Continental Can Co Multiple slide press for cutting sheet metal parts
US3706292A (en) * 1970-08-05 1972-12-19 Nat Steel Corp Manufacture of metal containers with rimmed opening
US3726244A (en) * 1971-04-12 1973-04-10 American Can Co Method and apparatus for forming a fully curled neck on a drawn and ironed pressure can
FR2217222A1 (fr) * 1973-02-12 1974-09-06 Lovell W C
US3910213A (en) * 1974-11-15 1975-10-07 Continental Can Co Method of perforating the necks of aerosol containers
FR2275259A1 (fr) * 1974-05-30 1976-01-16 Saurin Emmanuel Procede de fabrication d'une ligne de dechirage dans une tole, outil pour la mise en oeuvre du procede et tole etampee resultant de l'application du procede
US3998086A (en) * 1974-11-15 1976-12-21 Continental Can Company, Inc. Apparatus for perforating the necks of aerosol containers
US4027612A (en) * 1975-07-16 1977-06-07 Continental Can Company, Inc. Method for forming container scored metal flap areas

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1173793A (en) * 1916-02-29 george
US790735A (en) * 1905-03-10 1905-05-23 Morris Martin Tool for cutting holes in metal tanks.
GB488427A (en) * 1936-01-11 1938-07-06 Crown Cork & Seal Co Improvements in metal bottles or containers and methods of manufacturing the same
JPS5313073B2 (fr) * 1973-01-11 1978-05-08

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772735A (en) * 1953-10-09 1956-12-04 Continental Can Co Multiple slide press for cutting sheet metal parts
US3706292A (en) * 1970-08-05 1972-12-19 Nat Steel Corp Manufacture of metal containers with rimmed opening
US3726244A (en) * 1971-04-12 1973-04-10 American Can Co Method and apparatus for forming a fully curled neck on a drawn and ironed pressure can
FR2217222A1 (fr) * 1973-02-12 1974-09-06 Lovell W C
FR2275259A1 (fr) * 1974-05-30 1976-01-16 Saurin Emmanuel Procede de fabrication d'une ligne de dechirage dans une tole, outil pour la mise en oeuvre du procede et tole etampee resultant de l'application du procede
US3910213A (en) * 1974-11-15 1975-10-07 Continental Can Co Method of perforating the necks of aerosol containers
US3998086A (en) * 1974-11-15 1976-12-21 Continental Can Company, Inc. Apparatus for perforating the necks of aerosol containers
US4027612A (en) * 1975-07-16 1977-06-07 Continental Can Company, Inc. Method for forming container scored metal flap areas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013015051A1 (de) * 2013-09-12 2015-03-12 G. Staehle Gmbh U. Co. Kg Verfahren zur Herstellung eines Rohlings einer Dose
CN112605258A (zh) * 2020-11-30 2021-04-06 宝山钢铁股份有限公司 一种气雾罐的加工模具及方法

Also Published As

Publication number Publication date
JPS54131480A (en) 1979-10-12
US4290294A (en) 1981-09-22
EP0004252B1 (fr) 1982-05-12
CH626545A5 (fr) 1981-11-30
JPS6344456B2 (fr) 1988-09-05

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