EP2441535B1 - Verfahren zum Falzen von T-Profilen und Verfahren zur Umsetzung des Verfahrens - Google Patents

Verfahren zum Falzen von T-Profilen und Verfahren zur Umsetzung des Verfahrens Download PDF

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Publication number
EP2441535B1
EP2441535B1 EP11183942A EP11183942A EP2441535B1 EP 2441535 B1 EP2441535 B1 EP 2441535B1 EP 11183942 A EP11183942 A EP 11183942A EP 11183942 A EP11183942 A EP 11183942A EP 2441535 B1 EP2441535 B1 EP 2441535B1
Authority
EP
European Patent Office
Prior art keywords
punches
length
groove
major side
profile
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.)
Active
Application number
EP11183942A
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English (en)
French (fr)
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EP2441535A1 (de
Inventor
Sergio Dallan
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.)
Dallan SpA
Original Assignee
Dallan 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 Dallan SpA filed Critical Dallan SpA
Priority to SI201130006T priority Critical patent/SI2441535T1/sl
Priority to PL11183942T priority patent/PL2441535T3/pl
Publication of EP2441535A1 publication Critical patent/EP2441535A1/de
Application granted granted Critical
Publication of EP2441535B1 publication Critical patent/EP2441535B1/de
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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/035—Joining superposed plates by slitting

Definitions

  • the present invention relates to a method for seaming T profiles and to an apparatus for implementing the method
  • T profiles obtained by profiling a sheet metal strip are known for forming support frames for false ceilings.
  • this is provided with a plurality of longitudinal seams obtained by a process comprising a first step in which a plurality of parallel slits of length L are formed in said web spaced apart by a value H, after which a transverse punching operation is effected with a punch having the same length L and width H against a die provided in a wheel facing the punching wheel.
  • W02007/039542 discloses a method for producing T profiles by which a plurality of punchings are effected on the web of the T with first punches to form pairs of parallel incisions of length L, said profile then being subjected to a further punching step with second punches faced by dies, said second punches having a rectangular cross section with its major side L' having a length greater than the length of the major side L of the first punches.
  • this improvement is obtained by a method for producing profiles as described in claim 1.
  • the method of the invention uses two pairs of punching wheels 2, 2', 4, 4' of vertical axis, the wheels 2, 4 being provided on their lateral surface with two rows of first punches 6 and second punches 8 which are faced on the wheels 2', 4' by two annular grooves 10, 12.
  • the annular groove 10 is a through groove whereas the groove 12 has a width slightly greater than the first groove and a depth such as to form a die for the second punches 8 of the wheel 4.
  • the first punches 6 and second punches 8 have a substantially trapezoidal longitudinal section, the second punches 8 having their major side, of length L', less than the length L of the major side of the first punches 6 and having the it cutting surface of convex shape.
  • the web 16 thereof is made to pass through the pairs of punching wheels 2, 2' and 4. 4'.
  • the first punches 6 form on the web of the strip a plurality of pairs of parallel incisions 18 having a length corresponding to the length of the first punches 6 and spaced apart by a distance corresponding to the thickness of the first punches.
  • the web 16 is then subjected to the action of the second punches 8 which effect a further punching in correspondence with the first punching.
  • the sheet metal cannot further translate because of the presence of the die formed by the groove 12, but instead the most outer portion forms a kind of collar 20 which embraces the inner portion to hence prevent longitudinal slippage of the two parallel parts facing the webs and thus ensure greater flexural rigidity.
  • the tooth of the second punches 8 is of convex shape and of dimensions less than the length of the incisions formed with the first punches 6, it does not interfere with the flared parts of the sheet metal, which are hence free to slide relative to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Auxiliary Devices For Music (AREA)
  • Processing Of Terminals (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Claims (2)

  1. Verfahren zum Herstellen von Profilen, das einen Schritt des Profilierens eines Metallblechstreifens, um ein T-Profil zu erhalten, umfasst, wobei mit ersten Stempeln (6) eine Vielzahl von Stanzvorgängen am Steg des T-Profils ausgeführt wird, um Paare paralleler Einschnitte auszubilden, wobei dieses Profil dann einem weiteren Stanzschritt mit zweiten Stempeln (8), denen Unterwerkzeuge zugewandt sind, unterzogen wird, dadurch gekennzeichnet, dass diese ersten (6) und zweiten (8) Stempel einen im Wesentlichen trapezförmigen Längsschnitt aufweisen, wobei bei den zweiten Stempeln (8) die Länge L' ihrer längeren Seite kürzer als die Länge L der längeren Seite der ersten Stempel (6) ist und die Oberfläche ihres Schneidzahns nach außen gewölbt ist.
  2. Vorrichtung zum Ausführen des Verfahrens nach Anspruch 1, die zwei Paare von Stanzrädern (2, 2', 4, 4') umfasst, wobei die Räder (2, 4) des ersten Paars auf ihrer Seitenfläche mit ersten Stempeln (6) und zweiten Stempeln (8) versehen sind, denen jeweils auf den Rädern (2', 4') des zweiten Paars zwei Ringnuten (10, 12) zugewandt sind, wobei die erste Nut (10) eine Durchgangsnut ist, während die zweite Nut (12) eine geringfügig größere Breite als die erste Nut (10) hat und eine solche Tiefe aufweist, dass ein Unterwerkzeug für die zweiten Stempel (8) des Rads (4) gebildet wird, dadurch gekennzeichnet, dass bei den zweiten Stempeln (8) die Länge L' ihrer längeren Seite kürzer als die Länge L der längeren Seite der ersten Stempel (6) ist und ihre Zahnoberfläche nach außen gewölbt ist.
EP11183942A 2010-10-18 2011-10-05 Verfahren zum Falzen von T-Profilen und Verfahren zur Umsetzung des Verfahrens Active EP2441535B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201130006T SI2441535T1 (sl) 2010-10-18 2011-10-05 Postopek za spajanje T profilov in naprava za izvedbo postopka
PL11183942T PL2441535T3 (pl) 2010-10-18 2011-10-05 Sposób zszywania profili T oraz urządzenie do realizacji tego sposobu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000054A ITVE20100054A1 (it) 2010-10-18 2010-10-18 Procedimento di aggraffatura di profilati a t, apparecchiatura per attuare il procedimento e profilato ottenuto con il procedimento.

Publications (2)

Publication Number Publication Date
EP2441535A1 EP2441535A1 (de) 2012-04-18
EP2441535B1 true EP2441535B1 (de) 2012-08-22

Family

ID=43738449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11183942A Active EP2441535B1 (de) 2010-10-18 2011-10-05 Verfahren zum Falzen von T-Profilen und Verfahren zur Umsetzung des Verfahrens

Country Status (6)

Country Link
EP (1) EP2441535B1 (de)
ES (1) ES2391629T3 (de)
IT (1) ITVE20100054A1 (de)
PL (1) PL2441535T3 (de)
PT (1) PT2441535E (de)
SI (1) SI2441535T1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2274080B (en) * 1993-01-08 1995-09-06 Armstrong World Ind Inc Ceiling runners and process for producing same
DE10211257B4 (de) * 2002-03-13 2012-02-23 Richter-System Gmbh & Co Kg Verfahren zum mechanischen Verbinden von zwei Elementen aus Metall, bei welchem die beiden Elemente aus Metall zwischen einem einzigen Satz von zwei Walzen hindurchgeführt werden
ITVE20050046A1 (it) * 2005-10-03 2007-04-04 Dallan Spa Procedimento di aggraffiatura di profilati a t, apparecchiatura per attuare il procedimento e profilato ottenuto con il procedimento.-
US7762034B2 (en) * 2008-09-26 2010-07-27 Chicago Metallic Corporation Rotary stitch for joining sheet metal stock

Also Published As

Publication number Publication date
PT2441535E (pt) 2012-09-17
PL2441535T3 (pl) 2013-01-31
SI2441535T1 (sl) 2012-12-31
ES2391629T3 (es) 2012-11-28
ITVE20100054A1 (it) 2012-04-19
EP2441535A1 (de) 2012-04-18

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