EP1931484A1 - Method for seaming t profiles, apparatus for implementing the method, and profile obtained by the method - Google Patents

Method for seaming t profiles, apparatus for implementing the method, and profile obtained by the method

Info

Publication number
EP1931484A1
EP1931484A1 EP06819060A EP06819060A EP1931484A1 EP 1931484 A1 EP1931484 A1 EP 1931484A1 EP 06819060 A EP06819060 A EP 06819060A EP 06819060 A EP06819060 A EP 06819060A EP 1931484 A1 EP1931484 A1 EP 1931484A1
Authority
EP
European Patent Office
Prior art keywords
punches
length
profile
groove
punching
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
EP06819060A
Other languages
German (de)
French (fr)
Other versions
EP1931484B1 (en
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 SI200631113T priority Critical patent/SI1931484T1/en
Priority to PL06819060T priority patent/PL1931484T3/en
Publication of EP1931484A1 publication Critical patent/EP1931484A1/en
Application granted granted Critical
Publication of EP1931484B1 publication Critical patent/EP1931484B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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, an apparatus for implementing the method, and a profile obtained by 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 width 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.
  • Figure 1 is a plan view of the punching machine for effecting the seaming
  • Figure 2 is a side view thereof
  • Figure 3 is a section through the first punching wheel during the punching of the sheet metal strip
  • Figure 4 is a section through the second punching wheel during punching
  • Figure 5 is a side view of a T profile comprising a plurality of seams
  • Figure 6 is a cross-section therethrough on the line Vl-Vl of Figure 5
  • Figure 7 is a longitudinal section therethrough on the line VII-VII of Figure 5.
  • 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 have a substantially trapezoidal longitudinal section whereas the second punches 8 have a substantially rectangular section with the major side L' having a dimension greater than that of the first punches 6 and comprising a semicircular seat 14.
  • the web 16 of this 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 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 provide greater flexural rigidity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Metal Rolling (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Press Drives And Press Lines (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

A method for producing prof iles, comprising a step of profiling a sheet metal strip to obtain a T profile, characterised in that a plurality of punchings are effected on the web of the T with first punches (6) to form pairs of parallel incisions of length L, said profile then being subjected to a further punching step with second punches (8) faced by dies, said second punches having a length L' greater than the length L of the first punches.

Description

METHOD FOR SEAMING T PROFILES, APPARATUS FOR IMPLEMENTING THE METHOD, AND PROFILE OBTAINED BY THE METHOD
The present invention relates to a method for seaming T profiles, an apparatus for implementing the method, and a profile obtained by the method. T profiles obtained by profiling a sheet metal strip are known for forming support frames for false ceilings.
To ensure substantial rigidity for the profile web, 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 width 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.
These known profiles have however proved susceptible to improvement with regard to the flexural rigidity of the profile. According to the invention, this improvement is obtained by a method for producing profiles, as described in claim 1.
A preferred embodiment of the present invention is further clarified hereinafter with reference to the accompanying drawings, in which: Figure 1 is a plan view of the punching machine for effecting the seaming, Figure 2 is a side view thereof,
Figure 3 is a section through the first punching wheel during the punching of the sheet metal strip,
Figure 4 is a section through the second punching wheel during punching, Figure 5 is a side view of a T profile comprising a plurality of seams, Figure 6 is a cross-section therethrough on the line Vl-Vl of Figure 5, and Figure 7 is a longitudinal section therethrough on the line VII-VII of Figure 5. As can be seen from the figures, 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 have a substantially trapezoidal longitudinal section whereas the second punches 8 have a substantially rectangular section with the major side L' having a dimension greater than that of the first punches 6 and comprising a semicircular seat 14.
With the method of the invention, when the sheet metal strip has passed through the profiling machine and the T profile 14 has been obtained, the web 16 of this is made to pass through the pairs of punching wheels 2, 2' and 4. 4'. As a result of this passage, the first punches 6 form on the web of the strip a plurality of pairs of parallel incisions 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. As already stated, as these punches 8 have a length greater than the punches 6 of the first punching wheel, 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 provide greater flexural rigidity.

Claims

- A -C L A I M S
1. A method for producing profiles, comprising a step of profiling a sheet metal strip to obtain a T profile, characterised in that 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 length L' greater than the length L of the first punches.
2. An apparatus for implementing the method claimed in claim 1 , characterised by comprising two pairs of punching wheels (2, 2', 4, 4'), the wheels (2, 4) being provided on their lateral surface with first punches (6) and second punches (8) which are faced on the wheels (2', 4') by two annular grooves (10, 12), the groove (10) being a through groove whereas the groove (12) has a width slightly greater than the first groove (10) and a depth such as to form a die for the second punches (8) of the wheel (4).
3. An apparatus as claimed in claim 1 , characterised in that the first punches (6) have a substantially trapezoidal cross-section.
4. An apparatus as claimed in claim 2, characterised in that the second punches (8) have a substantially rectangular cross-section with its major side L' having a dimension greater than that of the first punches (6) and comprising a semicircular seat (14).
5. A profile obtained by the method claimed in claim 1 , characterised in that the web (16) comprises a plurality of longitudinal seams.
EP06819060A 2005-10-03 2006-09-28 Method for seaming t profiles and apparatus for implementing the method Active EP1931484B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200631113T SI1931484T1 (en) 2005-10-03 2006-09-28 Method for seaming t profiles and apparatus for implementing the method
PL06819060T PL1931484T3 (en) 2005-10-03 2006-09-28 Method for seaming t profiles and apparatus for implementing the method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000046A ITVE20050046A1 (en) 2005-10-03 2005-10-03 T-PROFILE SEAMING PROCEDURE, EQUIPMENT TO IMPLEMENT PROCEDURE AND PROFILE OBTAINED BY PROCEDURE.-
PCT/EP2006/066831 WO2007039542A1 (en) 2005-10-03 2006-09-28 Method for seaming t profiles, apparatus for implementing the method, and profile obtained by the method

Publications (2)

Publication Number Publication Date
EP1931484A1 true EP1931484A1 (en) 2008-06-18
EP1931484B1 EP1931484B1 (en) 2011-06-22

Family

ID=37680774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06819060A Active EP1931484B1 (en) 2005-10-03 2006-09-28 Method for seaming t profiles and apparatus for implementing the method

Country Status (10)

Country Link
EP (1) EP1931484B1 (en)
AT (1) ATE513637T1 (en)
DK (1) DK1931484T3 (en)
ES (1) ES2367321T3 (en)
HR (1) HRP20110548T1 (en)
IT (1) ITVE20050046A1 (en)
PL (1) PL1931484T3 (en)
PT (1) PT1931484E (en)
SI (1) SI1931484T1 (en)
WO (1) WO2007039542A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5128350B2 (en) * 2008-04-07 2013-01-23 森永製菓株式会社 Pharmaceutical composition for promoting absorption of catechin compounds
ITVE20100054A1 (en) * 2010-10-18 2012-04-19 Dallan Spa PROCESS OF CRIMPING OF T-PROFILES, EQUIPMENT TO IMPLEMENT PROCEDURE AND PROFILE OBTAINED BY PROCEDURE.
EP2532799B1 (en) * 2011-06-10 2015-05-20 Knauf AMF GmbH & Co. KG Metal girder and its use
ES2584390T3 (en) * 2012-07-27 2016-09-27 Giuseppe Cipriani Bar for a support structure for a false ceiling and production process for the manufacture of the bar
ITVR20130040A1 (en) 2013-02-14 2014-08-15 Giuseppe Cipriani METAL STRUCTURE FOR SUPPORTING A CEILING.
ITVR20130058A1 (en) 2013-03-08 2014-09-09 Giuseppe Cipriani PROFILE OF A STRUCTURE SUPPORTING A FALSE CEILING AND PROCESS OF PROCESSING TO WORK THE PROFILE.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2767339B2 (en) * 1992-03-10 1998-06-18 日鐵建材工業株式会社 Method and apparatus for caulking metal plate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007039542A1 *

Also Published As

Publication number Publication date
ATE513637T1 (en) 2011-07-15
PT1931484E (en) 2011-08-03
DK1931484T3 (en) 2011-10-03
EP1931484B1 (en) 2011-06-22
HRP20110548T1 (en) 2011-09-30
PL1931484T3 (en) 2011-11-30
SI1931484T1 (en) 2011-10-28
ITVE20050046A1 (en) 2007-04-04
ES2367321T3 (en) 2011-11-02
WO2007039542A1 (en) 2007-04-12

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