EP4405119A1 - Richtmaschine sowie verfahren zum richten - Google Patents
Richtmaschine sowie verfahren zum richtenInfo
- Publication number
- EP4405119A1 EP4405119A1 EP22768665.6A EP22768665A EP4405119A1 EP 4405119 A1 EP4405119 A1 EP 4405119A1 EP 22768665 A EP22768665 A EP 22768665A EP 4405119 A1 EP4405119 A1 EP 4405119A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- machine
- rollers
- guideline
- shafts
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
-
- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
Definitions
- the invention relates to a straightening machine for straightening profiles with a large number of straightening rollers arranged opposite one another on both sides of a guideline and forming a straightening section, which are arranged at least partially on vertically extending straightening shafts so that they can be adjusted horizontally and/or axially in relation to a profile guided in the straightening section .
- straightening of profiles is necessary if they subsequently change their shape due to thermal distortion, for example due to cooling after a rolling process.
- the use of horizontal straightening machines and vertical straightening machines is known for straightening profiles such as H-profiles, U-profiles, T-profiles, I-profiles, rail profiles or the like, with the terms horizontal and vertical referring to the alignment of the straightening tools.
- a horizontal straightening machine is known, for example, from WO 2016/142362 A1. This publication relates to a straightening machine
- Conveyor section configured roller table line, with a stand device holding the straightening roller elements opposite the conveyor section, comprising a drive-side stand half and one opposite the drive-side
- Stand half moveable operator-side stand half, with a
- Changing device for changing the straightening roller elements and with a changing path, along which the straightening roller elements can be moved for changing in which the straightening roller elements are moved on the one hand by means of the operator-side stand half along a first partial section of the changing path extending in a horizontal displacement plane and on the other hand by means of the changing device along a further one in a horizontal changing plane extending section of the Kirfpfads are movable.
- the horizontal changing plane is arranged in the area of the physical vertical extension of the stand half on the operator side.
- a straightening machine for straightening profiles such as rolled beams, which has several tools arranged above and below a pass line in the transport direction of the straightening material on parallel, driven straightening shafts, of which the upper straightening shafts can be adjusted to adjust the straightening gap, is known, for example, from EP 1 294 503 B1.
- This publication also relates to a method for operating a straightening machine for straightening profiles, in which, in such a straightening machine during straightening operation, at least the actuating means on the operator side, which is remote from the drive side, is subjected to a force that opposes the straightening force.
- the straightening machine according to EP 1 294 503 B1 is designed as a horizontal straightening machine in which each upper and lower straightening shaft can be driven individually via motors and intermediate gears provided on the drive side.
- drives are provided for the axial adjustment of the straightening shafts. Hydraulic cylinders serve as adjusting means.
- the invention is based on the object of providing a straightening machine of the type mentioned at the outset, in particular a so-called vertical straightening machine, which is improved with regard to the implementation of the adjustment movement of the straightening tools and in particular with regard to the absorption of the reaction forces during straightening.
- a straightening machine is to be provided which is structurally simplified.
- a corresponding method for straightening profiles is to be provided according to the invention.
- One aspect of the invention relates to a straightening machine for straightening profiles, with a large number of straightening rollers arranged offset on both sides of a guideline and forming a straightening section, which are at least partially horizontal and/or horizontal on straightening shafts that extend vertically in relation to a profile guided in the straightening section are arranged so that they can be adjusted axially, the straightening machine being characterized in particular by the fact that at least some of the straightening shafts are designed to be adjustable hydraulically horizontally and/or axially.
- the straightening machine according to the invention is designed as a vertical straightening machine and comprises a multiplicity of vertically extending straightening shafts, each of which has straightening rollers.
- a profile within the meaning of the present invention is, for example, an H profile, I profile, U profile or T profile, preferably a rail profile.
- the straightening rollers are expediently arranged opposite one another along the straightening section in such a way that they enable alternating bending on both sides of the profile.
- three straightening rollers preferably form a triangle of forces.
- straightening shafts are designed to be hydraulically adjustable horizontally and axially.
- At least one straightening shaft for horizontal adjustment about a pivot axis on a horizontal circular arc section is movably arranged with respect to the guideline.
- a pivot point bearing or a swinging position is provided for at least some of the straightening shafts.
- a linear infeed of chocks, as is usual in the prior art, is not necessary.
- the straightening shafts are turned on via a pivot bearing and an associated change in angle. A balancing of adjustable straightening shafts or straightening axes, which is otherwise usual and disadvantageous in the state of the art, can be completely eliminated by such a construction.
- At least one straightening shaft is pivotably mounted in a machine frame of the straightening machine. Thanks to this construction, the machine frame can be of a simpler design than the usual arrangement of vertically extending straightening shafts in bearing chocks of the stands used in the prior art.
- the at least one pivotally mounted straightening shaft preferably has an abutment on an opposite side of the guideline.
- the straightening shafts can each be mounted in supports of the machine frame that extend parallel to one another, with preferably only the straightening shafts arranged on one side of the guideline being horizontally and actively adjustable, whereas the straightening shafts arranged on the opposite side of the guideline can be stationary in a horizontal plane can.
- the at least one pivotally mounted straightening shaft can preferably be set via at least one hydraulic piston-cylinder arrangement, which is pivoted on an opposite side of the guideline.
- the guideline in the sense of the present invention is the ideal line, in which the profile to be straightened should extend after the straightening process.
- the straightening shafts arranged on both sides of the guideline define a straightening section in which the profile to be straightened is conveyed.
- At least some of the straightening shafts are preferably each driven individually.
- the distribution of torque and speed for each straightening shaft can also be controlled individually via individual drives.
- This data can be linked to corresponding data relating to the horizontal and/or axial adjustment, it being possible for this data to be recorded by hydraulic adjustment cylinders via corresponding travel and/or force and/or position sensors.
- at least one regulation of the contact force and/or position of at least one straightening shaft, preferably all straightening shafts, is provided individually.
- a particular advantage of the kinematics of the straightening machine according to the invention is that the machine frame can be made significantly more rigid, so that there is less deflection of the machine frame and thus also a more effective flow of force during straightening.
- the straightening shafts can be individually adjusted hydraulically, the forces of the straightening process can be recorded.
- An unequal force distribution of the individual straightening rollers allows immediate conclusions to be drawn about the straightening process and the correct axial position of the individual straightening rollers or straightening shafts.
- Another aspect of the invention relates to a method for straightening profiles in a straightening machine, the method comprising straightening a profile by means of a large number of straightening rollers on vertically extending straightening shafts, which are hydraulically horizontal in a straightening section on both sides of a guideline, at least partially individually and independently of one another and/or axially against a profile can be employed by applying a straightening force.
- straightening rollers are actively engaged, whereas another part of the straightening rollers only passively absorbs straightening forces.
- These straightening rollers cannot be adjusted horizontally, but are nonetheless designed so that they can be adjusted axially.
- the straightening rollers arranged on one side of the guideline can preferably be set actively, whereas the straightening rollers provided on the opposite side of the guideline can be set passively.
- the straightening rollers are adjusted via a pivot point bearing or carry out a so-called swing adjustment.
- This is a scissor-like infeed movement of the straightening rollers or straightening shafts, as a result of which the abutment forces are introduced into the machine frame in a particularly favorable manner.
- the straightening rollers and/or straightening shafts are each driven individually.
- the contact force and/or the contact position of the straightening rollers can be detected and/or controlled and/or regulated by means of pressure transmitters and/or position transmitters.
- the method according to the invention is characterized in particular by the use of a straightening machine with the features described above.
- Figure 1 is a plan view of the leveler according to the invention.
- FIG. 2 shows an enlarged detail from FIG. 1,
- FIG. 3 shows a perspective view of the straightening machine according to the invention with a rail profile extending inside the straightening machine
- FIG. 4 shows an enlarged detail from the illustration in FIG. 2,
- FIG. 5 shows a perspective partial sectional view through the straightening machine
- Figure 6 is a partially sectioned side view of the straightener
- FIG. 7 shows an enlarged sectional view through a straightening shaft and straightening roller at the outlet end of the straightener according to the invention
- Figure 8 is a sectional view through a straightening shaft and roller of the straightener according to the invention.
- the straightening machine 1 shown in FIG. 1 comprises a machine frame 2 which comprises a multiplicity of straightening tools in the form of straightening rollers 3 which are arranged on straightening shafts 4 extending vertically.
- the straightening rollers 3 form a straightening section which, in the illustration according to FIG. 1, is aligned with a roller table line 5 of a straightening system.
- the straightening rollers 3 are arranged opposite each other in the straightening section.
- the machine frame 2 is shifting cylinder 10, which as a hydraulic piston Cylinder arrangements are designed to be movable transversely to the roller table line 5 and can therefore be moved out of or into the roller table line 5 as required.
- the straightening machine 1 shown in the exemplary embodiment is designed as a vertical straightening machine.
- the straightening machine 1 comprises an entry side guide 6 for a rail profile 7 and an exit side guide 8.
- the rail profile 7 is shown in FIG. 3, for example. In the position shown in FIG. 3, this extends in a straightening section formed by the straightening rollers 3 .
- the straightening rollers 3 rest against profile flanks 9 of the rail profile 7 on both sides of the guideline specified by the rail profile 7 .
- the straightening machine 1 comprises a total of eight straightening rollers 3 as straightening tools, which are each arranged on a straightening shaft 4 in a rotationally fixed manner.
- the machine frame 2 comprises a bearing support 11 extending parallel to the guideline and supports 12 which are arranged on one side of the bearing support 11 and which are arranged to be movable on rails 13 by means of the displacement cylinders.
- the supports 12 are connected by means of a traverse 14 extending parallel to the guideline.
- the supports 12 accommodate the inlet side guide 6 and the outlet side guide 8, respectively.
- three straightening rollers 3 or straightening shafts 4 are arranged in the plane of the drawing below the roller table line 5 so as to be pivotable about a vertical pivot axis 23 (axis that extends into the plane of the drawing), specifically those straightening rollers 3 in the figure 2, which are arranged below the roller table line 5. That straightening roller 3 which is arranged closest to the outlet side guide 8 of the straightening machine 1 can only be displaced linearly horizontally with respect to the guideline and cannot be pivoted.
- the four straightening rollers 3 arranged in the plane of the drawing in FIG. 2 above the roller table line 5 are horizontally stationary.
- All straightening rollers 3 are, as will be described below, nonetheless axial (ie, in an axis that extends into the drawing plane of Figures 1, 2 and 4) displaceable or hydraulically adjustable.
- the straightening rollers 3 are arranged opposite one another along the straightening section in such a way that they enable alternating bending on both sides of the rail profile 7 .
- Three straightening rollers 3 each form a triangle of forces, with two straightening rollers 3 arranged at a distance from one another in the drawing plane above roller table line 5 forming a stationary abutment for the swinging engagement of straightening roller 3 arranged opposite therebelow or between them.
- both the horizontal adjustment movement of some straightening rollers 3 and the vertical or axial adjustment movement of all straightening rollers 3 take place hydraulically.
- the straightening rollers 3 adjoining the infeed side guide 6, on the one hand, of the guideline and, on the other hand, of the roller table line 5, carry out an active horizontal adjustment movement about a vertical pivot axis 23 on a circular arc segment, whereas the straightening rollers 3 opposite in each case are mounted stationary in the bearing bracket 11 in this regard become.
- the straightening rollers 3 which can be moved in the manner of a swing arm, are each arranged in a rotationally fixed manner on a correspondingly movable straightening shaft 4, with the straightening shaft 4 in question being articulated by means of a bearing piece 15 so that it can pivot on a pull rod 16, the distal end forms a piston 17 of a hydraulic cylinder 18 which is pivotally mounted by means of pins 19 in a bearing housing 20 on the side of the bearing bracket 11 remote from the straightening shaft 4 in question.
- FIG. 5 A view in the direction of the guideline or the roller table line 5, which shows the relative position of two straightening shafts 4 or two opposite straightening rollers 3 in relation to the rail profile 7, is shown in FIG.
- the straightening rollers 3 each rest against profile flanks 9 of the rail profile 7 .
- the invention is to be understood in such a way that the straightening machine 1 can be designed in such a way that the profile to be straightened, here the rail profile 7, can also be guided through the straightening rollers 3 in such a way that the rail profile 7 also has the greater moment of resistance with respect to its axis can be directed.
- each of the straightening shafts 4 can be rotated by means of a respective individual motor 21 via an angular gear 22 .
- all straightening shafts 4 of the exemplary embodiment described can be adjusted axially hydraulically, but within the scope of the invention it can also be provided that one or the other straightening shaft 4 is mounted in an axially fixed or axially non-adjustable manner.
- each of the straightening shafts 4 with the straightening rollers 3 arranged on them in a rotationally fixed manner can be adjusted individually hydraulically and/or radially, makes it possible to determine the individual positions of the straightening rollers 3 both axially and horizontally via corresponding position sensors and their adjusting force via corresponding pressure measuring devices record and control and/or regulate. About a central regulation and control devices can Adjusting forces are recorded. Conclusions can be drawn directly from the detected contact force as to whether, for example, all straightening rollers 3 are axially aligned and correctly aligned with respect to the rail profile 7 . As can be seen in particular from the combination of FIGS.
- the pivotable arrangement of part of the straightening shafts 4 results in a swing-like or scissor-like adjustment movement, which is relatively favorable in the machine frame 2 with regard to the abutment forces to be applied. This makes it possible to design the machine frame 2 in a relatively simple manner while at the same time being highly stable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Wire Processing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021210458.4A DE102021210458A1 (de) | 2021-09-21 | 2021-09-21 | Richtmaschine sowie Verfahren zum Richten |
PCT/EP2022/073237 WO2023046383A1 (de) | 2021-09-21 | 2022-08-19 | Richtmaschine sowie verfahren zum richten |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4405119A1 true EP4405119A1 (de) | 2024-07-31 |
Family
ID=83280227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22768665.6A Pending EP4405119A1 (de) | 2021-09-21 | 2022-08-19 | Richtmaschine sowie verfahren zum richten |
Country Status (7)
Country | Link |
---|---|
US (1) | US20240351084A1 (zh) |
EP (1) | EP4405119A1 (zh) |
JP (1) | JP2024535891A (zh) |
CN (1) | CN117940230A (zh) |
DE (1) | DE102021210458A1 (zh) |
MX (1) | MX2024003415A (zh) |
WO (1) | WO2023046383A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118357314B (zh) * | 2024-06-19 | 2024-10-22 | 常州达光金属制品有限公司 | 一种高性能铝合金型材加工矫直装置及方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1954525A (en) | 1931-02-17 | 1934-04-10 | Karl W Hallden | Wire straightening |
DE1552930A1 (de) | 1966-06-22 | 1970-01-08 | Masch Und Bohrgeraetefabrik A | Rollenrichtmaschine |
DE4408907C2 (de) | 1994-03-16 | 1997-05-15 | Hoestemberghe & Kluetsch Gmbh | Richtvorrichtung für warmgewalzte Träger und Profile |
ATE217815T1 (de) | 1999-03-26 | 2002-06-15 | Sms Demag Ag | Verfahren und maschinelle einrichtung zum richten von profilen |
DE10029387A1 (de) | 2000-06-21 | 2002-01-03 | Sms Demag Ag | Profilrichtmaschine |
AT512898B1 (de) * | 2012-08-03 | 2013-12-15 | Evg Entwicklung Verwert Ges | Richtrolleneinheit |
DE102015002887B4 (de) | 2015-03-09 | 2017-05-11 | Sms Group Gmbh | Richtmaschine und Verfahren zum Wechseln von Richtrollenelementen |
CN107790519B (zh) * | 2017-12-07 | 2023-07-07 | 珠海东方重工股份有限公司 | 小型方管拼装机 |
CN112517672B (zh) * | 2020-11-16 | 2022-08-23 | 大连海事大学 | 一种用于船舶制造t型钢的生产线 |
-
2021
- 2021-09-21 DE DE102021210458.4A patent/DE102021210458A1/de active Pending
-
2022
- 2022-08-19 JP JP2024517591A patent/JP2024535891A/ja active Pending
- 2022-08-19 CN CN202280060617.5A patent/CN117940230A/zh active Pending
- 2022-08-19 MX MX2024003415A patent/MX2024003415A/es unknown
- 2022-08-19 US US18/693,376 patent/US20240351084A1/en active Pending
- 2022-08-19 EP EP22768665.6A patent/EP4405119A1/de active Pending
- 2022-08-19 WO PCT/EP2022/073237 patent/WO2023046383A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
DE102021210458A1 (de) | 2023-03-23 |
JP2024535891A (ja) | 2024-10-02 |
US20240351084A1 (en) | 2024-10-24 |
CN117940230A (zh) | 2024-04-26 |
WO2023046383A1 (de) | 2023-03-30 |
MX2024003415A (es) | 2024-04-08 |
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Legal Events
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Owner name: SMS GROUP GMBH |