EP0527205A1 - Dresseur a galets en particulier pour aciers a beton. - Google Patents
Dresseur a galets en particulier pour aciers a beton.Info
- Publication number
- EP0527205A1 EP0527205A1 EP91909822A EP91909822A EP0527205A1 EP 0527205 A1 EP0527205 A1 EP 0527205A1 EP 91909822 A EP91909822 A EP 91909822A EP 91909822 A EP91909822 A EP 91909822A EP 0527205 A1 EP0527205 A1 EP 0527205A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- plates
- axis
- roller
- arm
- 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
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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
Definitions
- Roller blocker in particular for concrete steels.
- the present invention relates to a roller blocker intended in particular for dressing concrete steels. It is known that the elongated metal products obtained by rolling, and in particular the concrete steels, require a dressing before their use to bring them into a substantially straight position.
- Dressers are already known who operate by alternating bending in the same plane. These dressers circulate the wire to be dressed between rollers arranged on either side of the axis of the machine which cause alternative flexions causing the elastic limit to be exceeded by at least part of the section of the product to be dressed. by inflicting permanent deformations on the latter which gradually decrease to reach an almost zero value as the product to be dressed crosses the dresser. It is also known that to obtain a satisfactory dressing, it is necessary to make a precise adjustment of the position of the different rollers relative to the axis of travel of the product to be dressed, as well as of the distance which separates the different rollers along the axis of the blocker. This results in significant adjustment time and difficulties when the dresser has to successively process products of different diameters.
- the present invention relates to a straightener which makes it possible, by simple and economical means, to solve the problem posed and to allow rapid and effective adjustment of the longitudinal position and of the spacing of the different rollers as a function of the dimensional characteristics of the product to be draw up, and this without the position of the axis of the product to be treated being changed, which allows to keep the setting of the devices for feeding and evacuating the treated product.
- the present invention relates to a roller blocker usable for elongated metal products and in particular for the dressing of concrete steels, characterized in that it comprises in combination a plurality of plates capable of being moved while remaining perpendicular to the axis of the product to be straightened, each plate comprising on each of its useful faces, articulated at one of its points, a pivoting roller support arm the other end of which is held so as to be able to move in the vicinity of the adjacent plate when the distance separating the two plates in question is varied, said arm supporting a straightening roller disposed substantially at a quarter of the distance between the point of articulation of the arm on the plate and the end of the arm which is located in the vicinity of the adjoining plate, an adjustment means such as an eccentric allowing the position of the roller axis to be preset relative to the axis of the product to be dressed er, and a means for moving the plates parallel to the axis of the product to be treated, so that they maintain between them equal distances, the axis of the product to
- the dressing rollers are fixed, substantially a quarter of the length of the swinging arm counted from the point of attachment of the arm on a plate, it is obtained that by varying the spacing of the different while keeping the distances between them equal, the rollers all move by the same value towards the axis of the product to be dressed while remaining equidistant.
- the rollers all approach the axis of the product to be dressed according to the same law which is a function of the variation of the distance between the plates.
- the arms which are articulated at one of their ends on the plates are connected to the adjacent plates each by a short link, so that taking into account the extent limited adjustment movements, we can consider as a first approximation that the ends of the arms move substantially in a direction parallel to the plane of the plates.
- each arm mounts the free end of each arm on a shoe which is held to slide on a surface parallel to the plane of the plate.
- equidistance between the plates is ensured by means of a pivoting lever connected by links to the various plates, each link being articulated on the pivoting lever at a point whose distance from the - ù -
- articulation point of the lever is proportional to the distance between the articulation point of the link on its plate and the articulation point of the link on the pivoting lever.
- the plates are slidably mounted on two fixed cylindrical shafts.
- FIG. 1 is a schematic view showing the operating principle of the invention
- FIG. 2 is a view in elevation and in partial section of the roller-carrying arms which connect two neighboring plates
- FIG. 3 is a view in transverse section of the device of FIG. 2
- FIG. 4 is an elevation view of all of the plates arranged at irregular intervals
- FIG. 5 is a side view showing a device according to the invention which ensures the equidistance between the plates.
- Each plate has a roller support arm 51 articulated at 52 and the other end 53 of which is connected to the neighboring plate by a short link 54 articulated on the one hand on the neighboring plate and on the other hand at the end 53 of the arm 51.
- the arm 51 supports a straightening roller 55 which is situated approximately a quarter of the distance between the articulation point 52 on its plate and the end 53 of the arm 51 which moves in the vicinity of the neighboring plate. .
- roller 55 which is mounted on the articulated arm on the plate B is three quarters of the distance between the plates A and B.
- the tray C must be moved by 8cm and the tray D must be moved by 12cm as shown in broken lines.
- the eccentrics 52a_ make it possible to adjust a priori the deformations exerted by each roller during dressing, this adjustment being able then to be preserved during the displacement of the plates in accordance with the invention to adapt the dresser to products to be dressed of different diameters.
- This presetting of the position of the rollers can also be obtained by modifying the position of the rollers relative to the arms which support them.
- the free end 53 of the arm 51 is connected by the link 54 to the point of articulation 54a. of tray C.
- the distance separating the axis of articulation of the roller 55 to the axis of articulation 52 of the arm 51 on the plate B is substantially equal to a quarter of the distance existing between the axis of the point of articulation 52 of the arm 51 on the plate B and the articulation axis 53 of the other end of the arm 51.
- the kinematics of the system according to the invention is such that on the one hand there is perfect symmetry during the movement of the rollers between two neighboring plates and that on the other hand the different rollers approach or move away from the axis of the straightener in the same way. This preserves the progressiveness of the deformations which has been obtained by adjusting the eccentrics (52a).
- FIG. 3 shows an elevation view of the plate C where we find the cylindrical bars 56 on which the plates slide by means of the rings 57. There are also the two rollers 55 whose axes are arranged in different planes and which provide permanent deformation by bending of the product to be dressed 58, this of course in cooperation with a third roller not shown.
- FIG. 4 shows an elevation view of a blocker comprising four plates A, B, C, D, the plates C, D being brought together as much as possible while the plates A and B are separated as much as possible, this in order to show their travel possibilities.
- This maintenance can be carried out by various means, but a preferred means according to the invention is shown in FIG. 5.
- a tilting lever 59 is articulated at 60 on the plate C in the plane of the axis 50 of the blocker.
- This lever 59 is connected to the plates A, B, D, E, by links 61a, 61b_, 61d., 61e_ articulated at one end at points 6 points, 60b_, 60d, and 60e ⁇ of the lever 59, the other end of each link being connected to the plates A, B, D, E at points 62a., 62b, 62d. and 62e_ located in the plane of the trainer's axis.
- the articulation points 60, 60a, 60b, 60d and 6 ⁇ are equidistant from each other, as well as the articulation points 62a 62b_, 62î, and 62e_ arranged in the axial plane of the trainer.
- the hinge pin 60 of the lever 59 is located on a plate, which simplifies the structure of the device. It is also preferable for this articulation axis 60 to be disposed substantially in the middle of the straightener.
- this plate can be fixed, but it can also be sliding provided that another plate is fixed, such as the plate B in FIG. 5 .
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9005569A FR2661627B1 (fr) | 1990-05-03 | 1990-05-03 | Dresseur a galets en particulier pour aciers a beton. |
FR9005569 | 1990-05-03 | ||
PCT/FR1991/000368 WO1991017003A1 (fr) | 1990-05-03 | 1991-05-03 | Dresseur a galets en particulier pour aciers a beton |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0527205A1 true EP0527205A1 (fr) | 1993-02-17 |
EP0527205B1 EP0527205B1 (fr) | 1994-10-19 |
Family
ID=9396284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91909822A Expired - Lifetime EP0527205B1 (fr) | 1990-05-03 | 1991-05-03 | Dresseur a galets en particulier pour aciers a beton |
Country Status (8)
Country | Link |
---|---|
US (1) | US5345804A (fr) |
EP (1) | EP0527205B1 (fr) |
AT (1) | ATE112988T1 (fr) |
AU (1) | AU7889591A (fr) |
DE (1) | DE69104718D1 (fr) |
FR (1) | FR2661627B1 (fr) |
WO (1) | WO1991017003A1 (fr) |
ZA (1) | ZA913355B (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1253217B (it) * | 1991-10-22 | 1995-07-11 | Schnell Srl | Dispositivo di correzione della raddrizzatura di tondini di ferro e simili |
US5617754A (en) * | 1995-12-21 | 1997-04-08 | Kenneth A. Kauffman | Single stage two plane coiled reinforcing bar stock straightener |
DE29917408U1 (de) * | 1999-10-02 | 2001-02-15 | Friatec Ag | Biegemaschine zum Richten von Rohr- und/oder Stangenmaterial |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU718204A1 (ru) * | 1978-09-08 | 1980-02-29 | Fejgin Yakov Sh | Устройство дл правки длинномерного материала |
FR2550973B3 (fr) * | 1983-08-30 | 1985-12-13 | Pantz Paris Sa Ets Ernest | Dispositif a rouleaux de cintrage pour l'ecrouissage de produits metalliques, notamment de fils d'acier, et machine comportant un tel dispositif |
FR2576811B2 (fr) * | 1984-06-18 | 1988-09-16 | Cloup Jean | Dispositif de redressage de fils metalliques au moyen de galets |
US4719781A (en) * | 1986-08-07 | 1988-01-19 | Jean Cloup | Device for straightening metal wires by means of a plurality of rollers |
-
1990
- 1990-05-03 FR FR9005569A patent/FR2661627B1/fr not_active Expired - Lifetime
-
1991
- 1991-05-03 DE DE69104718T patent/DE69104718D1/de not_active Expired - Lifetime
- 1991-05-03 WO PCT/FR1991/000368 patent/WO1991017003A1/fr active IP Right Grant
- 1991-05-03 AU AU78895/91A patent/AU7889591A/en not_active Abandoned
- 1991-05-03 AT AT91909822T patent/ATE112988T1/de active
- 1991-05-03 ZA ZA913355A patent/ZA913355B/xx unknown
- 1991-05-03 US US07/938,250 patent/US5345804A/en not_active Expired - Fee Related
- 1991-05-03 EP EP91909822A patent/EP0527205B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9117003A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU7889591A (en) | 1991-11-27 |
DE69104718D1 (de) | 1994-11-24 |
ZA913355B (en) | 1992-03-25 |
US5345804A (en) | 1994-09-13 |
ATE112988T1 (de) | 1994-11-15 |
FR2661627B1 (fr) | 1995-02-03 |
WO1991017003A1 (fr) | 1991-11-14 |
EP0527205B1 (fr) | 1994-10-19 |
FR2661627A1 (fr) | 1991-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2502990A1 (fr) | Laminoir a plusieurs niveaux avec mecanisme de reglage de l'aplatissement du produit lamine | |
EP0527205B1 (fr) | Dresseur a galets en particulier pour aciers a beton | |
FR2488819A1 (fr) | Appareil a redresser les tubes d'acier et analogues | |
EP0459869B1 (fr) | Procédé et dispositif pour le réglage automatique des dresseurs à galets | |
EP0446130A1 (fr) | Installation de planage | |
FR2471257A1 (fr) | Dispositif pour la rectification sans pointes de surfaces symetriques de revolution de pieces a travailler | |
FR2492284A1 (fr) | Laminoir pour tubes d'acier | |
EP0225198A1 (fr) | Dispositif de planage d'une bande métallique sous traction | |
FR2587926A1 (fr) | Procede et machine de tronconnage et d'ebavurage de tubes a mettre au gabarit | |
FR3095140A1 (fr) | Dispositif de manutention d’un cylindre de laminoir | |
FR2510913A1 (fr) | Dispositif de changement d'outillage de laminoir a froid a pas de pelerin | |
FR2694715A1 (fr) | Procédé et appareil de rectification des manetons de villebrequin. | |
FR2483287A1 (fr) | Procede et dispositif pour appliquer des baguettes decoratives sur des pare-chocs | |
FR2758281A1 (fr) | Machine a cintrer des tubes de faible diametre, notamment inferieurs a 10mm, predecoupes et presentant des systemes de raccord a chacune de leurs extremites, et tete de cintrage pour une telle machine | |
EP1375018A1 (fr) | Dispositif de guidage d'un produit en bande | |
EP0165888A1 (fr) | Dispositif pour étirer positivement des pâtons pour la fabrication industrielle de pains longs | |
FR2593095A1 (fr) | Procede de redressement de tubes courbes longitudinalement. | |
FR2516413A1 (fr) | Dispositif pour plier en forme de boucles un fil metallique continu | |
CH215187A (fr) | Procédé pour le meulage d'une série de pièces à travailler suivant une opération unique, et machine pour la mise en oeuvre de ce procédé. | |
BE428702A (fr) | ||
BE527774A (fr) | ||
BE858719A (fr) | Machine et methode pour le decapage mecanique, par laminage de fils metalliques | |
FR2533149A1 (fr) | Dispositif d'entrainement discontinu de fil | |
BE419300A (fr) | ||
FR2615130A1 (fr) | Dispositif pour guider radialement des poincons et des ebauches de tubes rotatifs dans un laminoir |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19921201 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI |
|
17Q | First examination report despatched |
Effective date: 19930714 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19941019 Ref country code: AT Effective date: 19941019 Ref country code: DK Effective date: 19941019 Ref country code: GB Effective date: 19941019 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19941019 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19941019 |
|
REF | Corresponds to: |
Ref document number: 112988 Country of ref document: AT Date of ref document: 19941115 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 69104718 Country of ref document: DE Date of ref document: 19941124 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19950120 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19941019 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19950531 Ref country code: BE Effective date: 19950531 Ref country code: LI Effective date: 19950531 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
BERE | Be: lapsed |
Owner name: CARRERE NOEL Effective date: 19950531 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19961202 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980130 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |