EP4469223A1 - Richtmaschine sowie verfahren zum richten eines stahlprofils - Google Patents
Richtmaschine sowie verfahren zum richten eines stahlprofilsInfo
- Publication number
- EP4469223A1 EP4469223A1 EP22844498.0A EP22844498A EP4469223A1 EP 4469223 A1 EP4469223 A1 EP 4469223A1 EP 22844498 A EP22844498 A EP 22844498A EP 4469223 A1 EP4469223 A1 EP 4469223A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- shaft
- machine
- adjusting nut
- 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.)
- 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
- the invention relates to a straightening machine for straightening steel profiles, in particular a straightening machine with double-bearing straightening shafts on which straightening rollers are arranged in a straightening roller set for engaging in a profile chamber of a profile to be straightened.
- the invention relates in particular to a straightening machine for straightening rolled beams, in particular for straightening so-called H-beams.
- a straightening machine with an adjustable chamber dimension is known, for example, from DE 43 24 416 A1.
- this straightening machine which also comprises straightening shafts mounted on one side, it is provided that between the straightening disks there is a support ring for a plurality of hydraulic cylinders distributed over the circumference, the actuating pistons of which are connected to a straightening disk.
- the straightening machine according to the invention is preferably designed as a horizontal straightening machine with pairs of upper rollers and pairs of lower rollers.
- the adjustability of the straightening rollers can be provided on the pairs of upper rollers and/or on the pairs of upper rollers of at least one straightening shaft.
- FIG. 1 shows a cross section through a straightening machine according to the invention
- FIG. 2 shows an enlarged detailed view of a section
- FIGS. 3A and 3B each show a longitudinal section along the line III-III in FIG. 2, with FIG. 3A showing the unlocked position of the adjusting nut and FIG. 3B showing the locked position of the adjusting nut.
- the straightening machine 1 shown in cross-section in the figures comprises a multiplicity of straightening shafts 4 which are mounted in a stand 3 via chocks 2 and on which straightening rollers 5 are arranged in pairs as a straightening roller set.
- the straightening machine 1 comprises pairs of upper and lower straightening rollers which are arranged relative to one another in such a way that they form a bending triangle with respect to a rolled beam 6 .
- the straightening shaft 4 comprises a number of parts which are braced against one another axially, which is not discussed in detail below for the sake of simplicity.
- the lower straightening shaft 4 is not shown for reasons of simplification.
- the straightening shaft 4 is mounted horizontally at each end in chocks 2, the left-hand side of the straightening shaft 4 in the figures being the drive side and the right-hand side being the so-called operating side.
- the drive or main drive of the straightening shaft 4 is not shown for reasons of simplification. Only the shaft journal of the drive is shown schematically.
- the straightening rollers designated 5 engage in a profile chamber 7 of the carrier 6 and lie against flanges 8 of the carrier 6 on the inside.
- the distance between the flanges 8 within the profile chamber 7 is referred to as the chamber dimension.
- Two different carriers 6 with different chamber dimensions are indicated in the drawing.
- the straightening shaft 4 is frictionally connected to a mounting bushing 9 arranged on it in such a way that it takes the mounting bushing 9 with it.
- Each of the straightening rollers 5 is non-rotatably connected to a bearing bush 10 , 11 , the bearing bush 10 on the left in the illustration being designed as a stationary bearing bush and the bearing bush 11 on the right in the illustration being axially adjustable relative to the mounting bush 9 .
- the mounting bushing 9 is in turn connected to the straightening shaft 4 in a rotationally fixed manner. The anti-twist security of the adjustable bearing bush 11 with respect to the mounting bush 9 and with respect to the straightening shaft 4 is ensured by a feather key 12 .
- the adjusting nut 15 is non-rotatably connected to the mounting bushing 9 , specifically this is held in a form-fitting manner via a locking element 16 which engages in a ring gear 17 on the circumference of the mounting bushing 9 .
- the locking element 16 is spring-loaded in a locked position (see FIG. 3B) and is slidably mounted within a guide channel 18 that extends radially on the circumference of the adjusting nut 15 .
- Both the locking element 16 and a collar 19 of the adjusting nut 15 surrounding the guide channel 18 are provided with a catch opening 20 penetrated, in which a held on the chock 2 of the straightening machine 1 unlocking pin 21 can dip.
- the locking pin 21 can be switched on and off via a first piston-cylinder arrangement 23 .
- the first piston-cylinder arrangement 23 is attached to the chock 2 of the stand 3 . This can also be attached to the stand 3 .
- a sensor 25 is inserted into the leading end of the unlocking pin 21 and is designed, for example, as an inductive sensor for detecting the catch opening 20 in the adjusting nut 15 .
- immersing the unlocking pin 21 as the unlocking member in the sense of the present invention causes the locking element 16 to be lifted within the guide channel 18.
- the locking element 16 engages with a toothed plate 22 in the toothed rim 17 of the mounting bushing 9 and ensures a non-rotatable connection between the adjusting nut in the locked state shown in Figure 3B 15 and the mounting bush 9.
- the unlocked state shown in FIG. 3A shows the state in which the unlocking pin 21 is completely immersed in the catch opening 20 and in an opening 27 of the locking element 16.
- the opening 27 in the locking element 16 includes an inner guide bevel 26 which interacts with the conical tip of the unlocking pin as a wedge guide.
- the unlocking pin 21 has lifted the locking element 16 so that the toothed plate 22 is lifted off the ring gear 17 and the straightening shaft 4 with the mounting bushing 9 is decoupled from the adjusting nut 15 .
- a rotation of the straightening shaft 4 about its longitudinal axis causes an axial displacement of the adjusting nut 15, which is then secured against rotation by means of the unlocking pin 21.
- the chamber dimension or the axial distance between the straightening rollers 5 is adjusted by first putting the straightening machine 1 out of operation.
- the straightening shaft 4 is shifted to the right by means of a second piston-cylinder arrangement 24 ( Figure 1), so that the sensor 25 of the unlocking pin 21 is arranged at such a small distance from the collar 19 of the adjusting nut 15 that the collar 19 is in the detection range of the sensor 25.
- the different positions of the straightening shaft 4 and consequently of the adjustment nut 15 are indicated in FIG. 2 with phantom lines.
- the straightening shaft 4 is then slowly rotated about its longitudinal axis until the sensor 25 detects the catch opening 20 .
- the unlocking pin 21 When the catching opening 20 and the unlocking pin 21 are aligned with one another, the unlocking pin 21 is brought into the deployed position (see arrow in Figure 2), whereby when it enters the catching opening 20 it interacts with the conical tip, which forms a conical engagement surface, with the complementary guide bevel 26 in the opening 27 of the locking element 16 and when entering this opening 27 the locking element 16 raises, so that the toothed plate 22 of the locking element 16 is disengaged from the ring gear 17.
- the unlocking pin 21 secures the adjusting nut 15 against turning, which is decoupled from the mounting bush 9 in this position (FIG. 3A).
- an incremental encoder integrated into the main drive of the straightening shaft 4 the straightening shaft 4 is rotated by a predetermined angular amount up to a target angle which corresponds to a certain predetermined adjustment path of the straightening rollers 5 relative to one another.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Wire Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022200717 | 2022-01-24 | ||
| PCT/EP2022/087908 WO2023138888A1 (de) | 2022-01-24 | 2022-12-27 | Richtmaschine sowie verfahren zum richten eines stahlprofils |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4469223A1 true EP4469223A1 (de) | 2024-12-04 |
| EP4469223B1 EP4469223B1 (de) | 2025-04-02 |
Family
ID=84981870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22844498.0A Active EP4469223B1 (de) | 2022-01-24 | 2022-12-27 | Richtmaschine sowie verfahren zum richten eines stahlprofils |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4469223B1 (de) |
| JP (1) | JP7635467B2 (de) |
| WO (1) | WO2023138888A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202400001197A1 (it) * | 2024-01-23 | 2025-07-23 | Danieli Off Mecc | Dispositivo e procedimento di regolazione della distanza fra anelli raddrizzatori di un apparato di raddrizzatura |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109687A (en) * | 1991-07-08 | 1992-05-05 | Nippon Steel Corporation | Device for adjustment of barrel width of roll type straightener |
| DE4323468A1 (de) | 1993-07-14 | 1995-01-19 | Schloemann Siemag Ag | Richtmaschine für gewalzte Träger, insbesondere H-Träger |
| DE4324416A1 (de) | 1993-07-21 | 1995-01-26 | Schloemann Siemag Ag | Richtmaschine für gewalzte Träger, insbesondere Hyper-Beams |
| JP3288215B2 (ja) * | 1995-09-29 | 2002-06-04 | 川崎製鉄株式会社 | 形鋼用ローラ矯正機の幅可変装置 |
| JP3429636B2 (ja) * | 1997-01-10 | 2003-07-22 | 日立造船株式会社 | ロール幅調整装置 |
| JP3755230B2 (ja) * | 1997-04-15 | 2006-03-15 | Jfeスチール株式会社 | H形鋼ローラ矯正機のローラ幅変更装置及び変更方法 |
| DE19819063A1 (de) | 1998-04-29 | 1999-11-04 | Schloemann Siemag Ag | Richtmaschine für gewalzte Träger |
| JP2000351016A (ja) | 1999-06-09 | 2000-12-19 | Hitachi Zosen Corp | ロール幅調整装置 |
-
2022
- 2022-12-27 WO PCT/EP2022/087908 patent/WO2023138888A1/de not_active Ceased
- 2022-12-27 EP EP22844498.0A patent/EP4469223B1/de active Active
- 2022-12-27 JP JP2024529284A patent/JP7635467B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP7635467B2 (ja) | 2025-02-25 |
| WO2023138888A1 (de) | 2023-07-27 |
| JP2024543852A (ja) | 2024-11-26 |
| EP4469223B1 (de) | 2025-04-02 |
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