WO2000041825A1 - A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape - Google Patents
A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape Download PDFInfo
- Publication number
- WO2000041825A1 WO2000041825A1 PCT/EP2000/000208 EP0000208W WO0041825A1 WO 2000041825 A1 WO2000041825 A1 WO 2000041825A1 EP 0000208 W EP0000208 W EP 0000208W WO 0041825 A1 WO0041825 A1 WO 0041825A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bending
- procedure
- metal element
- cross
- profiled metal
- Prior art date
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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/03—Apparatus with means to keep the profile in shape
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Wire Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Golf Clubs (AREA)
Abstract
The bending procedure calls for a restraining force to be exerted on the profiled metal element (10) in a direction substantially orthogonal to that of the forces causing the bend, at the same time as the said forces are being exerted, in order to limit any deformation of the cross-sectional shape of the element (10). The associated apparatus includes means for exerting on the elemnt (10) a restraining force in a direction substantially orthogonal to that of the forces causing the bending.
Description
A PROCEDURE FOR BENDING A PROFILED METAL ELEMENT WHILE LIMIΗNG DEFORMATION OF ITS CROSS-SECTIONAL SHAPE
The present invention relates to a procedure for bending a profiled metal element in one or more dimensions and associated apparatus .
The object of the invention is to provide a procedure of the above type whereby bending a profiled metal element, notably by drawing, does not carry the side effect of deforming the cross- sectional shape thereof.
This object is achieved thanks to a bending procedure characterised in that it exerts a restraining force on the said profiled metal element in a direction substantially orthogonal to that of the forces causing the bend, at the time that they are acting.
This restraining force counters the tendency of the cross section of the element to become deformed, thus ensuring that it retains its original shape.
Profile elements of an open or partially closed type are suited to the procedure of the invention.
A further object of the invention comprises apparatus for carrying out the aforesaid procedure, including means for exerting on the element to be bent a restraining force in a
direction substantially orthogonal to that of the forces causing the bend.
Additional advantages and characteristics of the present invention will become clear from the detailed description which follows, with reference to the appended drawings, provided purely by way of non-limititative example, in which:
Figure 1 is a perspective view of a profiled metal element to be bent by the procedure of the invention, and
Figure 2 is a view in section, taken on the line II-II of Figure 1, of the profiled element arranged on apparatus operable to carry out the procedure of the invention.
An elongate profiled metal element 10, having a W-shape in cross section (see Figure 1) is to be bent in several dimensions as shown by the arrows 14.
In order to carry out this bending procedure, apparatus is used which is known per se in the art and is only schematically illustrated in figure 2 , and includes a template 16 having the shape to be imparted to the metal element and a series of dies 18 operated by respective actuators 20 able to press the element 10 against the template 16.
The surfaces of the template 16 and of the dies 18 intended to come into contact with the element 10 match the shape of the latter in order to provide adequate support during the bending procedure .
The apparatus also includes means for exerting a restraining force on the element 10 in a direction substantially orthogonal to that of the forces causing the bend by drawing.
These restraining means comprise pincers 22 located in recesses 24 formed along both sides of the template 16 and having jaws 26 able to grip the transverse edge regions of the element 10.
The jaws 26 of the pincers 22 are operated by respective actuators 28, which may be mechanically, pneumatically hydraulically or electrically operated.
In embodiments of the invention, not illustrated, the pincers can be replaced by vices, operated by mechanical lever systems instead of actuators .
In order to carry out the bending procedure, the jaws 26 of the pincers 22 hold the edge regions of the element 10 against the template 16 so that the forces exerted by the dies 18 produce the required bend by drawing the element 10 without deforming its cross-sectional shape.
In dependence on the shape of the element 10 and on the bending forces exerted on it, it is possible to provide a specific number of pincers 22 and/or a particular layout thereof, such that the cross section of the profiled element remains unchanged during the entire procedure .
Naturally, the principle of the invention remaining the same, manufacturing details and embodiments may vary widely from
those described and illustrated here purely by way of non- limitative example, without departing thereby from the scope of the invention.
For example, the bending of the profiled element can take place also only in one dimension, the longitudinal axis of the element remaining in the plane wherein it was originally.
Claims
1. A procedure for bending a profiled metal element (10) in one or more dimensions, characterised in that it provides for a restraining force to be exerted on the said element (10) in a direction substantially orthogonal to that of the forces causing the bend and at the same time as the bending forces are acting, in order to limit any deformation of the cross- sectional shape of the element (10) .
2. Apparatus for bending a profiled metal element (10) in one or more dimensions, characterised in that it includes means for exerting a restraining force on the said element (10) along a direction substantially orthogonal to that of the forces determining the bend.
3. Apparatus according to the preceding claim, characterised in that the said restraining means are mechanically, pneumatically, hydraulically or electrically operated.
4. Apparatus according to Claim 2 or Claim 3 , characterised in that the said restraining means comprise pincers (22) and/or vices, located along both sides of the element (10) and having jaws (26) able to grip the transverse edge regions of the element (10) .
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SK1016-2001A SK10162001A3 (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape |
| BR0008894-3A BR0008894A (en) | 1999-01-18 | 2000-01-13 | Process for bending a profiled metal element and device associated with the process |
| MXPA01007258A MXPA01007258A (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape. |
| CA002359341A CA2359341A1 (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape |
| PL00348894A PL348894A1 (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape |
| EP00901098A EP1154869A1 (en) | 1999-01-18 | 2000-01-13 | Method and apparatus for bending a profiled metal element while limiting deformation of its cross-sectional shape |
| JP2000593426A JP2002534270A (en) | 1999-01-18 | 2000-01-13 | Method of bending a shaped metal element while limiting the deformation of the cross-sectional shape |
| AU21084/00A AU2108400A (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape |
| NO20013542A NO20013542L (en) | 1999-01-21 | 2001-07-17 | Method and apparatus for boiling a profiled metal element |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO99A000034 | 1999-01-18 | ||
| ITTO990034 IT1306993B1 (en) | 1999-01-18 | 1999-01-18 | PROCEDURE FOR CURVING A METAL PROFILE ELEMENT CONTAINING THE DEFORMATIONS OF ITS SECTION AND RELATED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000041825A1 true WO2000041825A1 (en) | 2000-07-20 |
Family
ID=11417355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2000/000208 WO2000041825A1 (en) | 1999-01-18 | 2000-01-13 | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP1154869A1 (en) |
| JP (1) | JP2002534270A (en) |
| CN (1) | CN1336854A (en) |
| AU (1) | AU2108400A (en) |
| BR (1) | BR0008894A (en) |
| CA (1) | CA2359341A1 (en) |
| CZ (1) | CZ20012619A3 (en) |
| IT (1) | IT1306993B1 (en) |
| MX (1) | MXPA01007258A (en) |
| PL (1) | PL348894A1 (en) |
| RU (1) | RU2001123238A (en) |
| SK (1) | SK10162001A3 (en) |
| WO (1) | WO2000041825A1 (en) |
| YU (1) | YU48601A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588458A (en) * | 2014-12-26 | 2015-05-06 | 西安轨道交通装备有限责任公司 | Method for manufacturing swash plate of oil tank truck in pressing mode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1721964A (en) * | 1926-08-26 | 1929-07-23 | George R Mcalfenan | Method of and apparatus for bending structural shapes |
| GB982694A (en) * | 1961-05-19 | 1965-02-10 | Reynolds Metals Co | Method and apparatus for producing automotive vehicle bumpers |
| DE1527336A1 (en) * | 1965-09-21 | 1969-04-24 | Hamburger Flugzeugbau Gmbh | Universal pressing tool |
| US3898832A (en) * | 1973-09-07 | 1975-08-12 | Paweck Ag | Tool for bending workpieces such as tubes and sections |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4623729Y1 (en) * | 1968-04-19 | 1971-08-16 | ||
| JPS57137029A (en) * | 1981-02-19 | 1982-08-24 | Sanwa Koki Kk | Working device for press machine |
| JP3035025B2 (en) * | 1991-08-30 | 2000-04-17 | 不二サッシ株式会社 | Section bending machine |
-
1999
- 1999-01-18 IT ITTO990034 patent/IT1306993B1/en active
-
2000
- 2000-01-13 CZ CZ20012619A patent/CZ20012619A3/en unknown
- 2000-01-13 CN CN 00802861 patent/CN1336854A/en active Pending
- 2000-01-13 EP EP00901098A patent/EP1154869A1/en not_active Withdrawn
- 2000-01-13 MX MXPA01007258A patent/MXPA01007258A/en unknown
- 2000-01-13 BR BR0008894-3A patent/BR0008894A/en not_active Application Discontinuation
- 2000-01-13 JP JP2000593426A patent/JP2002534270A/en active Pending
- 2000-01-13 AU AU21084/00A patent/AU2108400A/en not_active Abandoned
- 2000-01-13 WO PCT/EP2000/000208 patent/WO2000041825A1/en not_active Application Discontinuation
- 2000-01-13 RU RU2001123238/02A patent/RU2001123238A/en not_active Application Discontinuation
- 2000-01-13 CA CA002359341A patent/CA2359341A1/en not_active Abandoned
- 2000-01-13 YU YU48601A patent/YU48601A/en unknown
- 2000-01-13 SK SK1016-2001A patent/SK10162001A3/en unknown
- 2000-01-13 PL PL00348894A patent/PL348894A1/en not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1721964A (en) * | 1926-08-26 | 1929-07-23 | George R Mcalfenan | Method of and apparatus for bending structural shapes |
| GB982694A (en) * | 1961-05-19 | 1965-02-10 | Reynolds Metals Co | Method and apparatus for producing automotive vehicle bumpers |
| DE1527336A1 (en) * | 1965-09-21 | 1969-04-24 | Hamburger Flugzeugbau Gmbh | Universal pressing tool |
| US3898832A (en) * | 1973-09-07 | 1975-08-12 | Paweck Ag | Tool for bending workpieces such as tubes and sections |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588458A (en) * | 2014-12-26 | 2015-05-06 | 西安轨道交通装备有限责任公司 | Method for manufacturing swash plate of oil tank truck in pressing mode |
Also Published As
| Publication number | Publication date |
|---|---|
| PL348894A1 (en) | 2002-06-17 |
| YU48601A (en) | 2003-12-31 |
| MXPA01007258A (en) | 2003-06-06 |
| ITTO990034A1 (en) | 2000-07-18 |
| SK10162001A3 (en) | 2001-12-03 |
| CZ20012619A3 (en) | 2002-02-13 |
| BR0008894A (en) | 2001-10-30 |
| IT1306993B1 (en) | 2001-10-11 |
| AU2108400A (en) | 2000-08-01 |
| EP1154869A1 (en) | 2001-11-21 |
| CN1336854A (en) | 2002-02-20 |
| RU2001123238A (en) | 2003-08-10 |
| JP2002534270A (en) | 2002-10-15 |
| CA2359341A1 (en) | 2000-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102712022B (en) | Comprise the workpiece of integration and the production equipment of mold manipulator | |
| EP1112791B1 (en) | Method and apparatus for production of hollowed rack bars | |
| EP1184102A3 (en) | Flexible tool for deforming a workpiece | |
| US5970766A (en) | Bending machine for closing channels | |
| JP4687327B2 (en) | Press straightening method for U-shaped steel sheet pile with arms | |
| JP2006281312A (en) | Press working method | |
| EP1015150B1 (en) | Method and apparatus for the production of bent sheet metal pieces | |
| WO2000041825A1 (en) | A procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape | |
| KR100224930B1 (en) | Method for producing pipe having polygon-shaped cross-section and device therefor | |
| JP2004261866A (en) | Comb-shaped mechanism for tool spacer | |
| EP3342496B1 (en) | Step-bending device | |
| EP1854564A1 (en) | Metal plate bending assembly and method | |
| JPH05330A (en) | Working device for metal plate bending machine | |
| EP1711285B1 (en) | Method and tool for bending bar material | |
| JPH0122059B2 (en) | ||
| JP4863173B2 (en) | Bending mold in press machine | |
| US5778719A (en) | Method of stretch-forming a channel material | |
| JPS5944133B2 (en) | Shape bending method and device | |
| SU897332A1 (en) | Method and apparatus for bending strip works on edge | |
| KR200167455Y1 (en) | An implement for roll bending press | |
| JPH0312973B2 (en) | ||
| US3740995A (en) | Method for bending a gutter or equivalent into a curve | |
| EP1362539A2 (en) | Structural member of a recessed supporting frame for bathroom fixtures, frame compising such a structural member, and relative production method | |
| US4489587A (en) | Vernier press brake die set | |
| JPS5927941Y2 (en) | stretch bender |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: P-486/01 Country of ref document: YU Ref document number: 00802861.3 Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| ENP | Entry into the national phase |
Ref document number: 2359341 Country of ref document: CA Ref document number: 2359341 Country of ref document: CA Kind code of ref document: A |
|
| ENP | Entry into the national phase |
Ref document number: 2000 593426 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 10162001 Country of ref document: SK |
|
| WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2001/007258 Country of ref document: MX |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 09889488 Country of ref document: US Ref document number: PV2001-2619 Country of ref document: CZ |
|
| WWE | Wipo information: entry into national phase |
Ref document number: IN/PCT/2001/1104/CHE Country of ref document: IN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2000901098 Country of ref document: EP |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2000901098 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: PV2001-2619 Country of ref document: CZ |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 2000901098 Country of ref document: EP |
|
| WWR | Wipo information: refused in national office |
Ref document number: PV2001-2619 Country of ref document: CZ |