EP1038602B1 - Method and device for straightening profiles - Google Patents
Method and device for straightening profiles Download PDFInfo
- Publication number
- EP1038602B1 EP1038602B1 EP00250100A EP00250100A EP1038602B1 EP 1038602 B1 EP1038602 B1 EP 1038602B1 EP 00250100 A EP00250100 A EP 00250100A EP 00250100 A EP00250100 A EP 00250100A EP 1038602 B1 EP1038602 B1 EP 1038602B1
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- European Patent Office
- Prior art keywords
- straightening
- axle
- cylinder
- mechanical device
- inclination
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005094 computer simulation Methods 0.000 claims description 2
- 239000000523 sample Substances 0.000 claims 4
- 238000005096 rolling process Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000149788 Pseudophryne major Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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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 method and a machine device for straightening of profiles with the help of one or more above and below the target mutually parallel straightening axes arranged in series straightening tools for Elimination of multi-axis deviations from the required profile.
- Profiles are placed on a cooling bed after rolling. Here they remain for cooling generally up to a temperature of approx. 60 ° C. Through the rolling process, like but especially due to the cooling especially warp unbalanced the profiles vertically as well as horizontally and can additionally still twist about its longitudinal axis. The consequences are besides the geometrical Non-uniformity of the rolling stock Internal stresses in the material Show the division of the profile even more clearly.
- DE-B-1264936 a device for re-bending thin-walled profiles into their desired shape is known, different form rollers being used depending on the type of profile.
- a molding tool is also known that has a disk-like tool that extends into the profile.
- the drive unit receiving the tool is tiltably mounted. Straightening thick-walled profiles created by rolling is not possible with this device.
- the object of the present invention is a method and a machine Device to create low-stress straightening of profiles with the or an improved directivity by taking into account Directional axis deflection is achieved due to changing straightening forces.
- both Straightening force adjustment as well as the adjustment of the horizontal inclination of the adjustable directional axis take place hydraulically, whereby the hydraulic system is designed so that both a quick Position change on the front and rear hydraulic cylinders as well only on the rear hydraulic cylinder is possible in such a way that the straightening force and / or the horizontal inclination of the adjustable directional axis also during Are adjustable.
- the straightening method according to the invention enables very quick compensation the bending of the straightening axes during the straightening process and thus allows the Correction of the straightening gap with changing straightening forces.
- each directional axis with the Straightening tools independent of the other straightening axis without load in the axial direction adjustable is carried out electro-mechanically, and then one hydraulic bracing is carried out, so that a play-free axial position is achieved.
- each Adjusting device has a measuring system, the signal in a computer-based rule model is fed in, taking into account the Geometry of the straightening machine and the measurement results, the straightening roller position, as well the straightening roll angle is calculated with the straightening of the straightening axis and specifications for optimizing the straightening gap are determined with which the Straightening axes can be set.
- the advantage of the method according to the invention is that with the adjustment of the Systems of the straightening gap can also be readjusted under straightening force. To this Directional force fluctuations can be caused by odd or non-uniform shape of the profile are dynamically balanced.
- the hydraulic adjustment also allows the simple implementation of the overload protection, because only one Pressure relief valve must be integrated into the hydraulic system. By optimizing the straightening gap, in addition to an increase in straightness the profile also took away the twist and the stress distribution homogenized.
- a machine device for straightening profiles according to the preamble of claim 4 is characterized in that that at least one, preferably the lower leveling unit, over the two Vertical-acting hydraulic cylinders articulated at the ends of the directional axis is adjustable.
- the hydraulic cylinder facing the straightening unit as Straightening cylinder is primarily provided for setting the straightening gap and the Hydraulic cylinder facing away from the straightening unit as an inclination cylinder.
- the straightening cylinder Preferably on the straightening cylinder, on the tilt cylinder and on the horizontal actuators, displacement transducers and on the straightening cylinder Force measuring devices are provided, the measured values of which together with the measured current consumption at measured values representing the main drives can be fed to a computer in which the Setting values for the degrees of freedom of the mechanical device can be calculated.
- controlled adjustment and readjustment of the axis inclination can be carried out to compensate for the bend around a parallel straightening gap so that with the straightening method according to the invention and the machine device one independently of each other play-free determination of the axial position of the upper and the lower directional axis is possible, as is a horizontal as well as a vertical one Straightening and calibrating ability.
- the setting and readjustment of the invention Axis inclination creates a parallel straightening gap even under rolling load.
- the straightener essentially consists of one, but not in its details Upper and lower straightening roller unit 4, shown in more detail.
- the upper Straightening roller unit each contains a drive including gear 1 which with the upper straightening axis 2 is connected, on which one or more straightening disks 3 e.g. different diameters above the profile, not shown, on one Sleeve to the straightening roller unit 4 are arranged pre-assembled.
- Each lower straightening roller unit 4 is adjustable in height. Via a hydraulic cylinder 5.6 the directional axis 12 is brought into position. During the straightening roller unit 4 facing straightening cylinder 5 primarily sets the straightening gap, is on the free Inclination cylinder 6 located at the end of the directional axis is the one that sets itself under load Correction of the directional axis compensated. For this purpose, the lower directional axis 12 is above the Straightening cylinder 5 articulated in a spherical cap 10.
- the lower directional axis 12 is guided in a carriage 11 in the base frame of the Machine is attached.
- the lower 12 as well as the upper 2 directional axes are in roller bearings stored and are axially adjusted by a gear motor 13.
- the approached Position is clamped without play using a hydraulic clamping mechanism.
- to Targeted adjustments are made at the end of the axis Control are involved.
- Via the measuring device for the horizontal Adjustment of the straightening roller set 4 are also the prerequisites for precise Positioning given. This degree of freedom comes especially from judging and Calibrate asymmetrical profiles.
- the computer model belonging to the regulation and setting of the machine relates to the set-up profile-related values that come from a database.
- the Straightening cylinder 5 also has a straightening force measurement 7.
- the tilt cylinder 6 at the free end of the directional axis also has a like the end of the directional axis Position measuring system 9. All position measuring systems have the task of their actual value for the To provide control, and also serve to specifically change the position to approach.
- the displacement measuring device is not arranged at the base of the vertical adjustment - that is, below the directional axis - but rather on the city side opposite the directional axis.
- the displacement measuring device can be a linear encoder 14, to which a magnet belongs, which - as before - is attached to the adjustable axis. This configuration ensures that the spring deflection of the chocks and the stand itself is also measured, so that only the roll deflection has to be taken into account as an additional compensation value.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren, sowie eine maschinelle Einrichtung zum Richten von Profilen mit Hilfe ein oder mehrerer oberhalb und unterhalb des Richtgutes auf zueinander parallelen Richtachsen in Reihe angeordneter Richtwerkzeuge zur Beseitigung mehrachsiger Abweichungen vom geforderten Profil. Als nächstkommender Stand der Technik ist die EP-A-0 551 656 anzusehen.The invention relates to a method and a machine device for straightening of profiles with the help of one or more above and below the target mutually parallel straightening axes arranged in series straightening tools for Elimination of multi-axis deviations from the required profile. As the closest State of the art can be seen in EP-A-0 551 656.
Profile gelangen nach dem Walzen auf ein Kühlbett. Hier verbleiben sie zur Abkühlung im allgemeinen bis auf eine Temperatur von ca. 60°C. Durch den Walzprozess, wie aber insbesondere auch durch die Abkühlung verwerfen sich besonders unsymmetrische die Profile vertikal, wie auch horizontal und können sich zusätzlich noch um ihre Längsachse verdrehen. Die Folgen sind neben der geometrischen Ungleichförmigkeit des Walzgutes Eigenspannungen im Material, die sich bei Zerteilung des Profils noch deutlicher zeigen.Profiles are placed on a cooling bed after rolling. Here they remain for cooling generally up to a temperature of approx. 60 ° C. Through the rolling process, like but especially due to the cooling especially warp unbalanced the profiles vertically as well as horizontally and can additionally still twist about its longitudinal axis. The consequences are besides the geometrical Non-uniformity of the rolling stock Internal stresses in the material Show the division of the profile even more clearly.
Zum Richten von langgestreckten, zylindrischen Werkstücken ist eine Maschine bekannt, bei der mindestens drei Richtkörper das Werkstück in einer Ebene umgreifen ( DE 196 51 422 A1). Durch diese Anordnung der Richtkörper in einer Ebene ist ein Richten von Profilen nicht möglich.There is a machine for straightening elongated, cylindrical workpieces known, in which at least three straightening bodies encompass the workpiece in one plane (DE 196 51 422 A1). This arrangement of the straightening body in one plane is a Profiles cannot be straightened.
Weiterhin ist aus der DE-B-1264936 eine Einrichtung zum Nachbiegen dünnwandiger
Profile in ihre Sollform bekannt, wobei je nach Art des Profils unterschiedliche
Formrollen zur Anwendung kommen. Für U-förmig gewinkelte Profile ist dabei auch ein
Formwerkzeug bekannt, dass ein scheibenartiges, sich in das Profil hinein
erstreckendes Werkzeug aufweist. Um in dem verhältnismäßig engen Spalt beidseitig
arbeiten zu können, ist das Werkzeug aufnehmende Antriebsaggregat kippbar
gelagert.
Ein Richten von durch Walzen entstandenen, dickwandigen Profilen, ist mit dieser
Einrichtung nicht möglich. Furthermore, from DE-B-1264936 a device for re-bending thin-walled profiles into their desired shape is known, different form rollers being used depending on the type of profile. For U-shaped angled profiles, a molding tool is also known that has a disk-like tool that extends into the profile. In order to be able to work on both sides in the relatively narrow gap, the drive unit receiving the tool is tiltably mounted.
Straightening thick-walled profiles created by rolling is not possible with this device.
Bisher hat man mit Richtmaschinen, insbesondere solchen die für dickwandigere Profile verwendet wurden, eine zweiachsige Planlage erzeugt, indem das Profil an einigen Flächen mit Hilfe von ober- und unterhalb des Richtgutes angeordneten Richtwalzen, die auf jeweils in derselben Ebene angeordneten Richtachsen oder - Scheiben mit voreingestellter Teilung bzw. einem bestimmten Abstand gelagert sind, einer Wechselbiegung unterworfen wird. Die Wechselbiegungen führen dann idealerweise zu einer Verbesserung der Geradheit in vertikaler, wie auch ggf. in horizontaler Richtung.So far, one has with straightening machines, especially those for thick-walled ones Profiles were used to create a two-axis flatness by applying the profile some areas with the help of arranged above and below the level Straightening rollers, which are arranged on straightening axes or - Discs with a preset pitch or a certain distance are stored, is subjected to an alternate bend. The alternate bends then lead ideally to improve the straightness in vertical, as well as in horizontal direction.
Aufgrund der einseitigen Lagerung der bekannten Richtachsen kommt es beim Richtprozess zu einer Durchbiegung der Richtachsen. Dieses führt zu einer ungewollten, nicht kompensierbaren Richtspaltaufweitung zwischen den Richtrollen, die auf einer Welle befestigt sind, die letztlich eine Beeinträchtigung des Richtergebnisses durch ungleichförmige Wechselbiegung und damit Spannungsverteilungen, sowie ungleichförmige plastische Verformungen ergibt. Dabei ist zu berücksichtigen, dass der gesamte Auffederungsbetrag sich dabei aus der Verformung der Lager, der Einbaustücke, dem Ständer und - bei elektro-mechanischer Anstellung - aus denen der Spindeln und Schneckenräder selbst zusammensetzt. Da für verschiedene Profile unterschiedlichste Richtkräfte erforderlich sind, resultieren daraus immer unterschiedliche Gesamtauffederungen.Because of the one-sided mounting of the known directional axes, it occurs when Straightening process for a deflection of the straightening axes. This leads to one unwanted, non-compensable straightening gap expansion between the straightening rollers, which are attached to a shaft, which ultimately affects the Judgment result through non-uniform alternate bending and thus Stress distributions and non-uniform plastic deformations result. there it must be taken into account that the total amount of spring-up results from the Deformation of the bearings, the chocks, the stand and - for electro-mechanical Employment - from which the spindles and worm wheels themselves composed. As different straightening forces are required for different profiles there are always different total suspensions.
Da bei einer elektro - mechanischen Anstellung der Richtachsen z.B. über eine Spindel der Richtspalt ohne Material voreingestellt wird, ist auch die Möglichkeit der genügend schnellen Korrektur des Richtspaltes unter Richtkraft nicht gegeben. Höhere Belastungen durch z.B. größere Ungeradheiten lassen sich deshalb systembedingt nicht kompensieren.Because with an electro-mechanical adjustment of the alignment axes e.g. over a spindle the straightening gap is preset without material, there is also the possibility of sufficient rapid correction of the straightening gap under straightening force is not given. higher Loads caused by e.g. major unevenness can therefore be caused by the system do not compensate.
Auch eine Schnellzustellung, d.h. Einfädeln des Profils bei geöffneter Anstellung und anschließendes Zufahren, ist mit elektro-mechanischer Anstellung nicht zu realisieren.Also a quick delivery, i.e. Threading the profile with the job open and subsequent closing is not possible with electro-mechanical adjustment.
Ferner kann es aber auch zu einer Überlastung der Richtwellen - mit der Folge eines Bruches - kommen, falls ein Anstellwert zu hoch gewählt wurde.Furthermore, there may also be an overload of the straightening waves - with the consequence of a Breakage - come if a set value was chosen too high.
Durch den Aufbau der Richtwalzen aus Scheiben ist zwar die gezielte Beeinflussung des Profils möglich, wodurch ihre Maßhaltigkeiten eingestellt werden können. Weil die Ungleichförmigkeiten über die Länge des Profils unterschiedliche Ausprägungen haben können, entstehen zusätzliche veränderliche Kräfte, die sich, wie oben dargestellt, auch auf die Richtachsendurchbiegung auswirken.Due to the structure of the straightening rollers from discs, there is a targeted influence of the profile possible, whereby their dimensional accuracy can be adjusted. Because the Non-uniformities over the length of the profile have different characteristics may have additional changeable forces that arise as above shown, also affect the directional axis deflection.
Aufgabe der vorliegenden Erfindung ist es ein Verfahren und eine maschinelle Einrichtung zum eigenspannungsarmen Richten von Profilen zu schaffen, mit dem bzw. der eine verbesserte Richtwirkung durch Berücksichtigung von Richtachsendurchbiegungen infolge veränderlicher Richtkräfte erzielt wird.The object of the present invention is a method and a machine Device to create low-stress straightening of profiles with the or an improved directivity by taking into account Directional axis deflection is achieved due to changing straightening forces.
Zur Lösung der Aufgabe wird ein Verfahren vorgeschlagen, dass ausgehend vom Stand der Technik gemäß Oberbegriff von Anspruch 1, sowohl die Richtkraftanstellung wie auch die Verstellung der horizontalen Neigung der anstellbaren Richtachse hydraulisch erfolgen, wobei das Hydrauliksystem so ausgelegt ist, dass sowohl eine schnelle Positionsveränderung am vorderen und hinteren Hydraulikzylinder wie auch ausschließlich am hinteren Hydraulikzylinder derart möglich ist, dass die Richtkraft und/oder die horizontale Neigung der anstellbaren Richtachse auch während des Richtens einstellbar sind.To solve the problem, a method is proposed that, based on the prior art according to the preamble of claim 1, both Straightening force adjustment as well as the adjustment of the horizontal inclination of the adjustable directional axis take place hydraulically, whereby the hydraulic system is designed so that both a quick Position change on the front and rear hydraulic cylinders as well only on the rear hydraulic cylinder is possible in such a way that the straightening force and / or the horizontal inclination of the adjustable directional axis also during Are adjustable.
Das erfindungsgemäße Richtverfahren ermöglicht eine sehr schnelle Kompensation der Biegung der Richtachsen während des Richtprozesses und gestattet damit die Korrektur des Richtspaltes bei sich ändemden Richtkräften.The straightening method according to the invention enables very quick compensation the bending of the straightening axes during the straightening process and thus allows the Correction of the straightening gap with changing straightening forces.
Zusätzlich ist nach einer Weiterbildung der Erfindung jede Richtachse mit den Richtwerkzeugen unabhängig von der anderen Richtachse ohne Last in Achsrichtung verstellbar. Diese Verstellung erfolgt elektro-mechanisch, wobei dann eine hydraulische Verspannung vorgenommen wird, so dass eine spielfreie Axialposition erreicht wird.In addition, according to a development of the invention, each directional axis with the Straightening tools independent of the other straightening axis without load in the axial direction adjustable. This adjustment is carried out electro-mechanically, and then one hydraulic bracing is carried out, so that a play-free axial position is achieved.
Auf diese Weise können Profilungenauigkeiten auch in der Querebene ausgeglichen werden.In this way, profile inaccuracies can also be compensated for in the transverse plane become.
Vorzugsweise ist vorgesehen, daß jede Verstelleinrichtung über ein Meßsystem verfügt, dessen Signal in ein computerbasiertes Regelmodell eingespeist wird, mit dem unter Berücksichtigung der Geometrie der Richtmaschine und der Meßergebnisse die Richtwalzenposition, sowie die Richtwalzenanstellung mit der sich einstellenden Richtachsenbiegung berechnet und Vorgaben zur Optimierung des Richtspaltes bestimmt werden, mit denen die Richtachsen eingestellt werden.It is preferably provided that each Adjusting device has a measuring system, the signal in a computer-based rule model is fed in, taking into account the Geometry of the straightening machine and the measurement results, the straightening roller position, as well the straightening roll angle is calculated with the straightening of the straightening axis and specifications for optimizing the straightening gap are determined with which the Straightening axes can be set.
Der Vorteil des erfindungsgemäßen Verfahrens besteht darin, daß mit Verstellung der Systeme der Richtspalt auch unter Richtkraft nachgeregelt werden kann. Auf diese Weise können Richtkraftschwankungen durch ungerade oder ungleichförmige Gestalt des Profils dynamisch ausgeglichen werden. Die hydraulische Anstellung erlaubt auch die einfache Realisierung der Überlastsicherung, weil hierzu nur ein Druckbegrenzungsventil in das Hydrauliksystem integriert werden muß. Durch die Optimierung des Richtspaltes wird neben einer Steigerung der Geradheit dem Profil auch die Verdrehung genommen und die Spannungsverteilung homogenisiert.The advantage of the method according to the invention is that with the adjustment of the Systems of the straightening gap can also be readjusted under straightening force. To this Directional force fluctuations can be caused by odd or non-uniform shape of the profile are dynamically balanced. The hydraulic adjustment also allows the simple implementation of the overload protection, because only one Pressure relief valve must be integrated into the hydraulic system. By optimizing the straightening gap, in addition to an increase in straightness the profile also took away the twist and the stress distribution homogenized.
Eine maschinelle Einrichtung zum Richten von Profilen nach dem Oberbegriff von Anspruch 4 ist dadurch gekennzeichnet, daß mindestens eine, vorzugsweise die untere Richtrolleinheit, über an den beiden Enden der Richtachse angelenkte vertikal wirkende Hydraulikzylinder höhen- und neigungsverstellbar ist.A machine device for straightening profiles according to the preamble of claim 4 is characterized in that that at least one, preferably the lower leveling unit, over the two Vertical-acting hydraulic cylinders articulated at the ends of the directional axis is adjustable.
Vorteilhaft ist es, wenn der der Richteinheit zugewandte Hydraulikzylinder als Richtkraftzylinder vorrangig zur Einstellung des Richtspaltes vorgesehen ist und der der Richteinheit abgewandte Hydraulikzylinder als Neigungszylinder. Damit kann eine Kompensation der Richtachsendurchbiegung nur durch Hubänderung des Neigungszylinders realisiert werden. Dies hat für das Meßsystem zur Folge, dass der Einfluß der Neigung den Einstellwert nicht verfälscht.It is advantageous if the hydraulic cylinder facing the straightening unit as Straightening cylinder is primarily provided for setting the straightening gap and the Hydraulic cylinder facing away from the straightening unit as an inclination cylinder. With that a Compensation of the directional axis deflection only by changing the stroke of the Inclination cylinder can be realized. This has the consequence for the measuring system that the Influence of the inclination does not falsify the setting value.
Dadurch, dass alle Richtachsen über als Gewindespindeln und/oder Hydraulikzylinder ausgebildete horizontale Verstellantriebe unabhängig voneinander axial verschiebbar sind, läßt sich eine spielfreie Feststellung der axialen Position der oberen und unteren Richtachse erreichen.The fact that all directional axes over as threaded spindles and / or hydraulic cylinders trained horizontal adjustment drives can be moved axially independently of one another are, a play-free determination of the axial position of the upper and lower Reach the directional axis.
Vorzugsweise sind am Richtkraftzylinder, am Neigungszylinder und an dem horizontalen Verstellantriebe Wegmeßgeber sowie am Richtkraftzylinder Kraftmeßeinrichtungen vorgesehen, deren Meßwerte zusammen mit dem die gemessene Stromaufnahme an den Hauptantrieben repräsentierenden Meßwerten einem Rechner zuführbar sind, in dem unter Zugrundelegung eines Rechenmodells die Einstellwerte für die Freiheitsgrade der maschinellen Einrichtung errechenbar sind. Auf diese Weise läßt sich eine geregelte Einstellung und Nachregelung der Achsneigung zur Kompensation der Biegung um einen parallelen Richtspalt erzeugen, so daß mit dem erfindungsgemäßen Richtverfahren, sowie der maschinellen Einrichtung eine unabhängig voneinander spielfreie Festlegung der axialen Position der oberen und der unteren Richtachse ebenso möglich ist, wie neben der vertikalen auch eine horizontale Richt- und Kallibrierfähigkeit. Die erfindungsgemäße Einstellung und Nachregelung der Achsneigung erzeugt auch unter Walzlast einen parallelen Richtspalt.Preferably on the straightening cylinder, on the tilt cylinder and on the horizontal actuators, displacement transducers and on the straightening cylinder Force measuring devices are provided, the measured values of which together with the measured current consumption at measured values representing the main drives can be fed to a computer in which the Setting values for the degrees of freedom of the mechanical device can be calculated. On In this way, controlled adjustment and readjustment of the axis inclination can be carried out to compensate for the bend around a parallel straightening gap so that with the straightening method according to the invention and the machine device one independently of each other play-free determination of the axial position of the upper and the lower directional axis is possible, as is a horizontal as well as a vertical one Straightening and calibrating ability. The setting and readjustment of the invention Axis inclination creates a parallel straightening gap even under rolling load.
Die Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert.The invention is explained in more detail below with reference to the drawings.
Dabei zeigt:
Die Richtmaschine besteht im Wesentlichen aus einer, in ihren Einzelheiten nicht
näher dargestellten oberen und unteren Richtrolleneinheit 4. Die obere
Richtrolleneinheit beinhaltet jeweils einen Antrieb incl. Getriebe 1 welcher mit der
oberen Richtachse 2 verbunden ist, auf der eine oder mehrere Richtscheiben 3 z.B.
unterschiedlichen Durchmessers oberhalb des nicht dargestellten Profils auf einer
Hülse zu der Richtrolleneinheit 4 vormontiert angeordnet sind.The straightener essentially consists of one, but not in its details
Upper and lower straightening roller unit 4, shown in more detail. The upper
Straightening roller unit each contains a drive including gear 1 which with the
upper straightening
Jede untere Richtrolleneinheit 4 ist höhenverstellbar. Über einen Hydraulikzylinder 5,6
wird die Richtachse12 in ihre Position gebracht. Während der der Richtrolleneinheit 4
zugewandte Richtzylinder 5 vorrangig den Richtspalt einstellt, wird über den am freien
Ende der Richtachse befindlichen Neigungszylinder 6 die sich unter Last einstellende
Richtachsenbiegung kompensiert. Hierzu ist die untere Richtachse 12 über dem
Richtkraftzylinder 5 in einer Kugelkallotte 10 gelenkig gelagert.Each lower straightening roller unit 4 is adjustable in height. Via a hydraulic cylinder 5.6
the
Die untere Richtachse 12 wird in einem Schlitten 11 geführt der im Grundrahmen der
Maschine befestigt ist. Die untere 12 wie auch obere 2 Richtachse sind in Wälzlagem
gelagert und werden durch einen Getriebemotor 13 axial verstellt. Die angefahrene
Position wird über einen hydraulischen Klemmechanismus spielfrei verspannt. Zur
gezielten Einstellung sind am Achsenende Wegmeßsysteme angebracht, welche in die
Steuerung eingebunden sind. Über die Wegmeßeinrichtung für die horizontale
Verstellung des Richtrollensatzes 4 sind auch hier die Voraussetzungen zur genauen
Positionierung gegeben. Dieser Freiheitsgrad kommt insbesondere dem Richten und
Kallibrieren von unsymetrischen Profilen zugute.The lower
Das zur Regelung und Einstellung der Maschine gehörige Computermodel bezieht für
den Set-Up profilbezogene Werte, die aus einer Datenbank stammen. Der
Richtkraftzylinder 5 besitzt zusätzlich eine Richtkraftmessung 7. Der Neigungszylinder
6 am freien Ende der Richtachse hat wie das Richtachsenende ebenfalls ein
Wegmeßsystem 9. Alle Wegmeßsysteme haben die Aufgabe ihren Istwert für die
Steuerung bereit zu stellen, und dienen auch dazu Lageveränderungen gezielt
anzufahren.The computer model belonging to the regulation and setting of the machine relates to
the set-up profile-related values that come from a database. The
Straightening
Bei der in Figur 2 gezeigten Ausführung, ist die Wegmeßeinrichtung nicht an der Basis
der Vertikalverstellung - also unterhalb der Richtachse - angeordnet, sondem an der
der Richtachse gegenüberliegenen Städerseite.
Die Wegmeßeinrichtung kann ein Lineargeber 14 sein, zu dem ein Magnet gehört, der
- wie bisher - an der verstellbaren Achse befestigt ist.
Durch diese Ausgestaltung wird erreicht, dass die Auffederung der Einbaustücke und
des Ständers selbst mit gemessen wird, so dass als zusätzlicher Kompensationswert
nur noch die Walzenaufbiegung zu berücksichtigen ist. In the embodiment shown in FIG. 2, the displacement measuring device is not arranged at the base of the vertical adjustment - that is, below the directional axis - but rather on the city side opposite the directional axis.
The displacement measuring device can be a linear encoder 14, to which a magnet belongs, which - as before - is attached to the adjustable axis.
This configuration ensures that the spring deflection of the chocks and the stand itself is also measured, so that only the roll deflection has to be taken into account as an additional compensation value.
Claims (10)
- Method for straightening profiles by eliminating multi-axis deviations from the required profile and also from the required straightness by means of one or more straightening tools (3) which are disposed in series above and below the item to be straightened on straightening axles (2, 12) which are parallel to each other,
characterised in that
both the straightening power actuation and also the adjustment of the horizontal inclination of the actuatable straightening axle (12) are effected hydraulically, the hydraulic system being designed such that both a fast change in position at the front and rear hydraulic cylinder just as also exclusively at the rear hydraulic cylinder is possible in such a manner that the straightening power and/or the horizontal inclination of the actuatable straightening axle (12) are also adjustable during straightening. - Method according to claim 1,
characterised in that
each straightening axle (2, 12) with the straightening tools (3) is adjustable in axial direction independently of the other straightening axle (2, 12) of the straightening process. - Method according to claim 1 and 2,
characterised in that
each adjustment device has a measuring system, the signal of which is fed into a computer-based control model, by means of which, taking into account the geometry of the straightening machine and the measured results, the straightening roller position and also the straightening roller actuation with the adjusting straightening axle deflection are calculated and settings for optimising the straightening gap are determined, by means of which the straightening axles (2, 12) are adjusted. - Mechanical device for straightening profiles by eliminating multi-axis deviations from the required profile and also from the required straightness by means of a plurality of straightening tools (3) which are disposed in series above and below the item to be straightened on straightening axles (2, 12) which are parallel to each other,
characterised in that
the actuatable straightening axle (12) is adjustable in height and in inclination via vertically operating hydraulic cylinders (5, 6) which are coupled to both ends of the straightening axle (12). - Mechanical device according to claim 4,
characterised in that
the hydraulic cylinder orientated towards the straightening unit is configured as a straightening power cylinder (5) and the hydraulic cylinder orientated away from the straightening unit as an inclination cylinder (6) and
in that the adjustment of the inclination is effected only by the inclination cylinder (6) in order to compensate for the straightening axle deflection. - Mechanical device according to one or more of the claims 4 to 5,
characterised in that
both straightening axles (2, 12) are mechanically axially displaceable independently of each other via horizontal adjustment drives and are hydraulically clampable. - Mechanical device according to claim 4,
characterised in that
the horizontal adjustment drives are configured as hydraulically clearance-free tensioned thread adjustment bushes. - Mechanical device according to claim 4,
characterised by
path measurement probes (9, 14) provided on the straightening power cylinder (5), on the inclination cylinder (6) and on the horizontal adjustment drive and also power measuring devices (7) provided on the straightening power cylinder, the measured values of which can be supplied to a computer together with the measured values representing the measured current input at the main drives (1), in which computer the adjustment values for the degrees of freedom of the mechanical device can be calculated by establishing a computer model. - Mechanical device according to claim 8,
characterised in that
the path measuring probe (8) is mounted on the stand side which is situated opposite the vertically adjustable straightening axle. - Mechanical device according to one of the claims 8 and 9,
characterised in that
the path measuring probe (8) is a linear probe, the associated magnet of which is mounted on the adjustable straightening axle.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19915145 | 1999-03-26 | ||
| DE19915145 | 1999-03-26 | ||
| DE10013229A DE10013229A1 (en) | 1999-03-26 | 2000-03-13 | Method and machine for straightening profiles |
| DE10013229 | 2000-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1038602A1 EP1038602A1 (en) | 2000-09-27 |
| EP1038602B1 true EP1038602B1 (en) | 2002-05-22 |
Family
ID=26004884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00250100A Expired - Lifetime EP1038602B1 (en) | 1999-03-26 | 2000-03-23 | Method and device for straightening profiles |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6266989B1 (en) |
| EP (1) | EP1038602B1 (en) |
| AT (1) | ATE217815T1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10029387A1 (en) * | 2000-06-21 | 2002-01-03 | Sms Demag Ag | Profile straightener |
| FR2816530B1 (en) * | 2000-11-15 | 2003-02-07 | Usinor | METHOD OF ADJUSTING A PLANER UNDER TRACTION AND CORRESPONDING DEVICE |
| US6944511B2 (en) | 2001-05-30 | 2005-09-13 | G.D Societa Per Azioni | Method of controlling an automatic machine |
| US6698221B1 (en) * | 2003-01-03 | 2004-03-02 | Kyung Kon You | Refrigerating system |
| ITMI20061667A1 (en) * | 2006-09-01 | 2008-03-02 | Danieli Off Mecc | STRAIGHTENING SYSTEM |
| AT512898B1 (en) * | 2012-08-03 | 2013-12-15 | Evg Entwicklung Verwert Ges | Straightening roller unit |
| CN103934386B (en) * | 2014-05-13 | 2015-12-02 | 吴雪峰 | Dither wire rod straightener and using method thereof |
| CN104307931A (en) * | 2014-11-11 | 2015-01-28 | 无锡恒富科技有限公司 | Main roller transmission mechanism of straightening machine |
| AT516761B1 (en) * | 2015-05-13 | 2016-08-15 | Gtech Automatisierungstechnik Gmbh | Method and installation for straightening metallic parts |
| CN110038923A (en) * | 2019-04-29 | 2019-07-23 | 广州阳城机械设备有限公司 | A kind of two-way straightening mechanism |
| DE102021210458A1 (en) | 2021-09-21 | 2023-03-23 | Sms Group Gmbh | Straightening machine and method for straightening |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1752406A1 (en) * | 1968-05-21 | 1971-09-02 | Masch Und Bohrgeraete Fabrik | Method and device for straightening material on a roller straightening machine |
| US4111025A (en) * | 1973-04-04 | 1978-09-05 | Nippon Steel Corporation | Straightening mill for section steel |
| DE2824217A1 (en) * | 1978-06-02 | 1979-12-06 | Schloemann Siemag Ag | LEVELING MACHINE FOR PLATES AND STRAPS |
| US4222256A (en) * | 1979-02-21 | 1980-09-16 | F. J. Littell Machine Company | Straightener with individually removable roll and pivoted bearing housing and roll design |
| DE3507251A1 (en) * | 1985-03-01 | 1986-09-04 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | DRIVER FOR ROLLER TAPE |
| DE3840016A1 (en) * | 1988-11-26 | 1990-05-31 | Schloemann Siemag Ag | METHOD FOR LEVELING SHEETS, STRIPS, TABLES, PROFILES, CARRIERS ETC. |
| DE59202620D1 (en) * | 1992-01-17 | 1995-07-27 | Schloemann Siemag Ag | Roller straightener. |
-
2000
- 2000-03-23 AT AT00250100T patent/ATE217815T1/en not_active IP Right Cessation
- 2000-03-23 EP EP00250100A patent/EP1038602B1/en not_active Expired - Lifetime
- 2000-03-27 US US09/537,458 patent/US6266989B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1038602A1 (en) | 2000-09-27 |
| ATE217815T1 (en) | 2002-06-15 |
| US6266989B1 (en) | 2001-07-31 |
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