EP1829628A1 - Vorrichtung zur Herstellung eines Metalldeckels, Metalldeckel und Verfahren zu dessen Herstellung - Google Patents

Vorrichtung zur Herstellung eines Metalldeckels, Metalldeckel und Verfahren zu dessen Herstellung Download PDF

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Publication number
EP1829628A1
EP1829628A1 EP07102760A EP07102760A EP1829628A1 EP 1829628 A1 EP1829628 A1 EP 1829628A1 EP 07102760 A EP07102760 A EP 07102760A EP 07102760 A EP07102760 A EP 07102760A EP 1829628 A1 EP1829628 A1 EP 1829628A1
Authority
EP
European Patent Office
Prior art keywords
station
disc
tubular portion
lid
metal sheet
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Withdrawn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
EP07102760A
Other languages
English (en)
French (fr)
Inventor
Davide Spotti
Alessandro Coppola
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.)
Illycaffe SpA
Original Assignee
Illycaffe SpA
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 Illycaffe SpA filed Critical Illycaffe SpA
Publication of EP1829628A1 publication Critical patent/EP1829628A1/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Withdrawn legal-status Critical Current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
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages

Definitions

  • the present invention concerns an apparatus and a method for making a metal lid, advantageously able to be used for making pressurized tins for containing coffee beans.
  • Pressurized metal tins used to contain coffee grains comprising a cylindrical shaped shell, or central body, associated at the two ends respectively with a bottom and a lid provided centrally with an opening in turn closed by a removable cap.
  • a non-toxic gas is introduced, whose pressure adds to the pressure of the gasses which are released naturally by the coffee, so that the internal pressure of the tin might reach the value of 5-7 bar if there was not a regulating valve, or safety valve, on the cap, cooperating with a threading made on the lid.
  • Purpose of the present invention is to achieve an apparatus and a method which will allow to produce, starting from a substantially plane metal sheet, a metal lid, provided with a threading on which a safety valve, a closing cap or other can be screwed.
  • Another purpose of the invention is to make a metal lid of the type described above in a completely automatic manner and with limited costs.
  • the Applicant has devised and embodied the present invention to overcome the shortcomings of the state of the art in order to achieve the above purposes and to obtain other advantages.
  • an apparatus for making a metal lid according to the present invention comprises at least a cutting and molding station able to cut and draw a substantially plane metal sheet so as to obtain a lid provided with a tubular portion, and a threading station able to thread said tubular portion.
  • a lubricating station upstream of the cutting and drawing station, able to cover at least one surface of the metal sheet with lubricant, before it is molded.
  • the cutting and molding station comprises at least a shearing unit for cutting a disc of sheet and a plurality of drawing units able to act in progression on said disc.
  • the shearing unit and the drawing units are disposed in series.
  • the shearing unit and the drawing units are mounted on a turntable structure and are able to cooperate with specific workstations.
  • the cutting and molding station comprises a plurality of turntable structures, on each of which a shearing unit and a plurality of drawing units are mounted, so as to contemporarily form a plurality of lids.
  • the cutting and molding station comprises at least a work unit where a shearing means, able to cut the metal sheet, is integrated with drawing means able to perform at least part of the shaping of the metal sheet.
  • the threading station comprises at least a roller device provided with two counter-rotating threaded rollers able to cooperate respectively with the internal surface and the external surface of the tubular portion of the lid, so as to perform the threading thereon.
  • the number 10 denotes generally the apparatus according to the present invention, by means of which it is possible to make, in a completely automatic manner, a metal lid 12, with a circular base, a central hole and a threaded tubular portion 12a, starting from a substantially plane metal sheet 11, advantageously of a rectangular shape.
  • the apparatus comprises, in the following order: a pick-up station 13, a lubricating station 14, a cutting and molding station 15, a threading station 16 and a discharge station 17.
  • the pick-up station 13 comprises an accumulation zone 18, in correspondence with which a plurality of rectangular metal sheets 11, of suitable size and a width comprised between 0.2 mm and 0.55 mm, advantageously about 0.4 mm, is stacked, and a manipulator with suckers 19, able to pick up one metal sheet 11 at a time and carry it to the lubricating station 14.
  • the lubricating station 14 comprises a hood 22 under which a distributing device 20 is present, provided with a plurality of nozzles 21, able to cover the sheets 11 with a layer of oil, or other lubricant.
  • a slider 23 is present under the distributing device 20, able to carry, one at a time, the lubricated sheets 11 to the cutting and molding station 15.
  • the cutting and molding station 15 comprises a shearing unit 34, able to shear the sheets 11 so as to achieve on each occasion a disc 111, and five drawing units 35a, 35b, 35c, 35d and 35e, disposed in series, able to determine a progressive deformation, through pressure and sliding of the material, of the disc 111. Suitable pressure means, or sheet-pressers, are present in order to control the sliding of the metal sheet.
  • the disc 111 exiting the shearing unit 34 has a diameter comprised between 230 mm and 260 mm, advantageously about 245 mm.
  • the threading station 16 comprises a manipulator with suckers 25 able to pick up the lids 12 one at a time and position them on a supporting surface 26 associated with a slide 27.
  • the threading station 16 also comprises a roller device 30 provided with two counter-rotating threaded rollers 28 and 29, by means of which the threading of the tubular portion 12a of the lid 12 is performed; a first roller 28 is able to be disposed inside the tubular portion 12a, while a second roller 29 is able to be disposed outside the tubular portion 12a.
  • the discharge station 17 comprises, in this case, a conveyor belt 31.
  • the method for making a lid 12 with the apparatus 10 is as follows.
  • the manipulator with suckers 19 picks up a metal sheet 11 from the accumulation zone 18 and takes it below the hood 22 where it is covered with a layer of oil by the distributing device 20.
  • the slider 23 then takes the metal sheet 11 to the cutting and molding station 15, where it is punched by the shearing unit 34 so as to obtain the disc 111 (figs. 2b and 3b).
  • the disc 111 is then taken into correspondence with a first drawing unit 35a, where it is drawn in order to make a circular impression 32 in the center, with a diameter comprised between 90 mm and 110 mm, advantageously about 100 mm.
  • the disc 111 is then taken to a second drawing unit 35b, where the depth of the circular impression 32 is accentuated and its diameter reduced, for example to about 80 mm (figs. 2d and 3d).
  • the disc 111 is then taken in correspondence with the third drawing unit 35c, whose punch tool causes a further increase in depth and a further reduction in diameter of the circular impression 32, as well as making a central hole 33, with a diameter of about 35 mm (figs. 2e and 3e); it is then taken to the fourth drawing unit 35d where the shaping of the circular impression 32 is completed, making a substantially cylindrical shape with a diameter of about 60 mm, and the hole 33 is widened until it reaches a diameter of about 45 mm (figs. 2f and 3f).
  • each drawing unit 35a-35d allows to control the movement of the metal sheet of which the disc 111 is made.
  • the first disc 111 is taken in correspondence with the fifth drawing unit 35e which gives the lid its final shape, with a further widening of the central hole 33 to about 50 mm in diameter, and forming a circumferential edge 12b about 15 mm in height (figs. 2g and 3g).
  • the lids thus obtained are discharged by the conveyor belt 24 and picked up, one at a time, by the manipulator with suckers 25 that deposits them on the supporting surface 26 of the threading station 16, so that they can be worked by the roller device 30.
  • the first roller 28 moves into the tubular portion 12a in contact with the internal surface thereof, while the second roller 29 is disposed in an opposite position to the first roller 28, in contact with the external surface of the tubular portion 12a.
  • the two rollers 28 and 29 are driven so as to perform, while rotating around their axis, a revolution around the tubular portion 12a, which determines the threading thereof.
  • the lid 12 thus completed, which in this case has a diameter comprised between 210 mm and 230 mm, advantageously about 220 mm, has a tubular portion 12a with an external diameter equal to about 60 mm and a central hole of about 50 mm in diameter, and is then discharged from the apparatus 10 by means of the slide 27 and the conveyor belt 31.
  • the cutting and molding station 15 could comprise three turntable structures, each provided with a shearing unit 34 and with five drawing units 35a-35e, which are able to be disposed, one at a time, in correspondence with a workstation where they act upon the metal sheet 11 or a relative disc 111, so as to produce three lids 12 simultaneously.
  • the same cutting and molding station 15 may comprise a higher or lower number of drawing units 35a-35e, according to the work phases that have to be performed in order to obtain the lid 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Casings For Electric Apparatus (AREA)
  • Closures For Containers (AREA)
EP07102760A 2006-02-27 2007-02-21 Vorrichtung zur Herstellung eines Metalldeckels, Metalldeckel und Verfahren zu dessen Herstellung Withdrawn EP1829628A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUD20060041 ITUD20060041A1 (it) 2006-02-27 2006-02-27 Apparecchiatura per la realizzazione di un coperchio metallico,procedimento per la realizzazione di tale coperchio e coperchio metallico cosi' realizzato

Publications (1)

Publication Number Publication Date
EP1829628A1 true EP1829628A1 (de) 2007-09-05

Family

ID=37991580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07102760A Withdrawn EP1829628A1 (de) 2006-02-27 2007-02-21 Vorrichtung zur Herstellung eines Metalldeckels, Metalldeckel und Verfahren zu dessen Herstellung

Country Status (2)

Country Link
EP (1) EP1829628A1 (de)
IT (1) ITUD20060041A1 (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR633497A (fr) * 1927-04-27 1928-01-30 Salles Et Coulbeaux Ets Chapiteaux pour récipients métalliques et leur procédé de fabrication
US4584859A (en) * 1985-08-23 1986-04-29 Weirton Steel Corporation In-line control during draw-redraw of one-piece sheet metal can bodies
JPS6216830A (ja) * 1985-07-12 1987-01-26 Shosuke Murai 排水口金の製造方法
EP0355647A2 (de) * 1988-08-13 1990-02-28 Neue Fasstechnik Gesellschaft mit beschränkter Haftung NFT Spundbehälter
US5305906A (en) * 1989-03-31 1994-04-26 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Drum with plug
US5822843A (en) * 1994-11-22 1998-10-20 Aluminum Company Of America Method of making bottle-shaped metal cans
WO2002068278A2 (en) * 2001-02-28 2002-09-06 Dayton Systems Group, Inc. Dome forming system
JP2003072791A (ja) * 2001-08-29 2003-03-12 Kenji Sato ねじ付金属容器用ねじ付金属蓋
WO2003101845A2 (en) * 2002-06-03 2003-12-11 Alcan International Limited Two piece container

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR633497A (fr) * 1927-04-27 1928-01-30 Salles Et Coulbeaux Ets Chapiteaux pour récipients métalliques et leur procédé de fabrication
JPS6216830A (ja) * 1985-07-12 1987-01-26 Shosuke Murai 排水口金の製造方法
US4584859A (en) * 1985-08-23 1986-04-29 Weirton Steel Corporation In-line control during draw-redraw of one-piece sheet metal can bodies
EP0355647A2 (de) * 1988-08-13 1990-02-28 Neue Fasstechnik Gesellschaft mit beschränkter Haftung NFT Spundbehälter
US5305906A (en) * 1989-03-31 1994-04-26 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Drum with plug
US5822843A (en) * 1994-11-22 1998-10-20 Aluminum Company Of America Method of making bottle-shaped metal cans
WO2002068278A2 (en) * 2001-02-28 2002-09-06 Dayton Systems Group, Inc. Dome forming system
JP2003072791A (ja) * 2001-08-29 2003-03-12 Kenji Sato ねじ付金属容器用ねじ付金属蓋
WO2003101845A2 (en) * 2002-06-03 2003-12-11 Alcan International Limited Two piece container

Also Published As

Publication number Publication date
ITUD20060041A1 (it) 2007-08-28

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