EP0587995A1 - Set of rollers with at least two deflection rollers for S-shaped deflection of thin metal strips - Google Patents
Set of rollers with at least two deflection rollers for S-shaped deflection of thin metal strips Download PDFInfo
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- EP0587995A1 EP0587995A1 EP93108722A EP93108722A EP0587995A1 EP 0587995 A1 EP0587995 A1 EP 0587995A1 EP 93108722 A EP93108722 A EP 93108722A EP 93108722 A EP93108722 A EP 93108722A EP 0587995 A1 EP0587995 A1 EP 0587995A1
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- European Patent Office
- Prior art keywords
- roller
- deflection
- rollers
- set according
- deflection rollers
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Classifications
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- 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
- B21D1/05—Stretching combined with rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
- B21B27/05—Sleeved rolls with deflectable sleeves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/08—Braking or tensioning arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
Definitions
- the invention relates to a roller set with at least two deflection rollers for the S-shaped deflection of thin metal strips, in particular metal strips with a strip thickness of up to 1 mm.
- Straightening processes such as tension stretching and stretch bending straightening are known for leveling metal strips. Although these straightening processes are relatively advanced, light center bowls or edge shafts sometimes have to be accepted after leveling. These residual unevenness results from transverse stresses distributed unevenly over the bandwidth, which are superimposed on the tensile stresses in the longitudinal direction of the strip. The smaller the strip thickness and the modulus of elasticity of the metal strip in question, the greater the risk of residual unevenness.
- the invention has for its object to provide a roller set of the embodiment described above, with which in the course of leveling metal strips edge shafts or center bowls can be significantly reduced or eliminated entirely.
- Edge waves or center dishes that exist in the metal strip in question due to the length differences of individual metal strip strips over the strip width can thus be reduced or completely eliminated. Because with a convex outer curvature of the guide roller, the middle of the belt is overstretched and edge waves are eliminated in this way, while with a concave inner curvature of the guide roller, the transverse stresses that otherwise build up from the belt edges towards the center of the belt, i.e. the belt center area is now lengthened like the belt areas, so that center bowls no longer occur. You can always in the middle or edge areas of each Build up higher metal tensile stresses and apply the tensile stresses required for leveling to the strip edge areas as well as the strip center area.
- the two deflection rollers are designed as a tension roller set - with a driven pull roller and brake roller - and between the two deflection rollers a tensile stretch is built in order to level metal strips which are particularly sensitive to surface, for example for lithographic Purposes.
- the aim here is to avoid stretch-bending straightening to level the metal strips in order to avoid surface damage.
- deflecting rollers form two sets of tensioning rollers and a cold rolling mill and / or a stretch-bending leveling mill is arranged between the two tensioning rollers and braking rollers, with at least the one that is immediately upstream and immediately downstream of the cold rolling mill or stretch-bending leveling tower
- Deflection roller has a convex to concave adjustable roller jacket. In these cases, similar effects are achieved in cold rolling and stretch bending straightening as in tension stretching.
- the roller diameter of the adjustable deflection rollers is at least 250 mm, while the wrap angle is at least 90 ° and preferably greater than 150 °.
- the respective deflecting roller with a convex to concave adjustable roller jacket has a pressure chamber arranged between the roller jacket and the roller core with a pressure medium supply for a hydraulic or pneumatic pressure medium, and the concave inner curvature is formed by negative pre-grinding in the depressurized state.
- the pressure medium supply can have an axial rotary feedthrough in one of the two loader pins of the respective deflection roller and the pressure chamber can have a ventilation hole.
- vent hole is only required for the first time filling the pressure chamber with the pressure medium.
- the figures show a set of rollers with at least two deflection rollers 1, 2 for the S-shaped deflection of thin metal strips 3, in particular of metal strips with a strip thickness of up to 1 mm and a strip width of more than 800 mm.
- At least one of the two deflection rollers 1 or 2 has a roller jacket 6 that can be adjusted between a convex outer curvature 4 and a concave inner curvature 5, the respective one Metal strip 3 is guided around the adjustable deflection roller with a wrap angle of at least 90 °, preferably more than 150 °.
- the two deflection rollers 1, 2 can be designed as a tension roller set with a driven pull roller 1 and brake roller 2. In this case, a tensile stretch Z is set up between the two deflection rollers 1, 2.
- deflecting rollers 1, 2, 7, 8 form two sets of tensioning rollers, a cold-rolling stand 9 or a straightening-bending stand 10 being arranged between the two tensioning roller sets 1, 7 and 2, 8 forming brake rollers.
- At least the deflecting roller 1, 2 which is immediately upstream and immediately downstream of the cold rolling stand 9 or the stretch bending stand 10 has a roller jacket 6 which can be adjusted from convex to concave.
- All deflecting rollers 1, 2, 7, 8 or pairs of rollers can always have a roller jacket 6 which can be adjusted from convex to concave.
- the deflection rollers 1, 7 and 2, 8 are arranged vertically one above the other in pairs, according to FIG. 3 arranged horizontally next to one another.
- the roller diameters 1, 2 and 7, 8 of the adjustable deflection rollers are at least 250 mm, so that, taking into account a wrap angle of more than 90 ° and in particular more than 150 °, sufficiently high plastic deformations can be achieved in either the belt edge area or the belt center area.
- FIG. 4 shows a deflection roller 1 with a roller jacket 6 which can be adjusted from convex to concave and which, between the roller jacket 6 and the roller core 11, has a pressure chamber 12 with a pressure medium supply 13 for a hydraulic or pneumatic pressure medium, the concave inner curvature 5 being in a depressurized state is formed by a negative pre-grinding.
- the pressure medium supply 13 has an axial rotary feedthrough 14 in one of the two bearing journals 15 of the respective deflection roller 1 and the pressure chamber 12 has a ventilation hole 16 for the initial filling.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Metal Rolling (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
Es handelt sich um einen Rollensatz (1,2;1,7,2,8) mit zumindest zwei Umlenkrollen (1,2;1,7,2,8) für die S-förmige Umlenkung dünner Metallbänder (3). Eine der beiden Umlenkrollen weist einen zwischen einer konvexen Außenwölbung (4) und einer konkaven Innenwölbung (5) einstellbaren Rollenmantel (6) auf, um höhere plastische Verformungen entweder in den Bandrandbereichen oder der Bandmitte des durchlaufenden Metallbandes (3) im Zuge seiner Planierung einstellen zu können. Dazu wird das Metallband um die einstellbare Umlenkrolle überdies mit einem Umschlingungswinkel von mindestens 90° geführt. <IMAGE>It is a roller set (1,2; 1,7,2,8) with at least two deflection rollers (1,2; 1,7,2,8) for the S-shaped deflection of thin metal strips (3). One of the two deflection rollers has a roller jacket (6) that can be adjusted between a convex outer curvature (4) and a concave inner curvature (5) in order to adjust higher plastic deformations either in the band edge areas or in the middle of the band of the continuous metal band (3) in the course of its leveling can. For this purpose, the metal strip is also guided around the adjustable deflection roller with a wrap angle of at least 90 °. <IMAGE>
Description
Die Erfindung betrifft einen Rollensatz mit zumindest zwei Umlenkrollen für die S-förmige Umlenkung dünner Metallbänder, insbesondere von Metallbändern mit einer Banddicke bis zu 1 mm.The invention relates to a roller set with at least two deflection rollers for the S-shaped deflection of thin metal strips, in particular metal strips with a strip thickness of up to 1 mm.
Zum Planieren von Metallbändern kennt man solche Richtverfahren wie das Zugrecken und das Streckbiegerichten. Obwohl diese Richtverfahren verhältnismäßig weit fortentwickelt sind, müssen heute zuweilen noch leichte Mittenschüsseln oder Randwellen nach dem Planieren in Kauf genommen werden. Diese Restunplanheiten resultieren aus über der Bandbreite ungleichmäßig verteilten Querspannungen, welche den Zugspannungen in Bandlängsrichtung überlagert sind. Je geringer die Banddicke und der Elastizitätsmodul des betreffenden Metallbandes sind, um so größer ist das Risiko von Restunplanheiten.Straightening processes such as tension stretching and stretch bending straightening are known for leveling metal strips. Although these straightening processes are relatively advanced, light center bowls or edge shafts sometimes have to be accepted after leveling. These residual unevenness results from transverse stresses distributed unevenly over the bandwidth, which are superimposed on the tensile stresses in the longitudinal direction of the strip. The smaller the strip thickness and the modulus of elasticity of the metal strip in question, the greater the risk of residual unevenness.
Ähnliches gilt für das Kaltwalzen, insbesondere für das Nachwalzen bzw. Dressierwalzen. Aufgrund einer Durchbiegung der Walzen infolge der Walzkraft und weil das Eingangsdickenprofil der Metallbänder regelmäßig nicht rechteckförmig ist, kommt es zu ungleichmäßigen Verformungen im Walzspalt über die Bandbreite und damit zu Welligkeiten nach dem Kaltwalzen. Zwar wird häufig eine Korrektur der Walzspaltgeometrie versucht, jedoch lassen sich die angesprochenen Welligkeiten regelmäßig nicht vermeiden. Tatsächlich hängt nämlich die Verformung im Walzspalt nicht nur von der Walzkraftverteilung, sondern auch von der Zugspannungsverteilung über die Bandbreite ab.The same applies to cold rolling, in particular for post-rolling or skin pass rolling. Due to a deflection of the rolls due to the rolling force and because the input thickness profile of the metal strips is not regularly rectangular, there are non-uniform deformations in the roll gap over the strip width and thus waviness after cold rolling. Correction of the roll gap geometry is often attempted, but the mentioned ripples cannot be avoided on a regular basis. In fact, the deformation in the roll gap depends not only on the distribution of the rolling force, but also on the tension distribution over the strip width.
Der Erfindung liegt die Aufgabe zugrunde, einen Rollensatz der eingangs beschriebenen Ausführungsform zu schaffen, mit dem sich im Zuge des Planierens von Metallbändern Randwellen oder Mittenschüsseln in erheblichem Maße verringern oder ganz eliminieren lassen.The invention has for its object to provide a roller set of the embodiment described above, with which in the course of leveling metal strips edge shafts or center bowls can be significantly reduced or eliminated entirely.
Diese Aufgabe löst die Erfindung bei einem gattungsgemäßen Rollensatz dadurch, daß zumindest eine der beiden Umlenkrollen einen zwischen einer konvexen Außenwölbung und einer konkaven Innenwölbung einstellbaren Rollenmantel aufweist und das jeweilige Metallband um die einstellbare Umlenkrolle mit einem vorgegebenen Umschlingungswinkel geführt ist. - Diese Maßnahmen der Erfindung haben zur Folge, daß sich bei einem durchlaufenden Metallband und konvexer Außenwölbung an zumindest einer der beiden Umlenkrollen eine Zugspannungskonzentration in der Bandmitte und bei konkaver Innenwölbung eine Zugspannungskonzentration in den Randzonen einstellt. Aus den Zugspannungskonzentrationen resultieren örtlich höhere plastische Verformungen. Somit können Randwellen oder Mittenschüsseln, die in dem betreffenden Metallband aufgrund von Längenunterschieden einzelner Metallbandstreifen über die Bandbreite bestehen, verringert oder ganz eliminiert werden. Denn bei konvexer Außenkrümmung der Umlenkrolle wird die Bandmitte überdehnt und werden auf diese Weise Randwellen eliminiert, während bei einer konkaven Innenwölbung der Umlenkrolle die sich sonst von den Bandrändern zur Bandmitte hin aufbauenden Querspannungen kompensiert werden, also der Bandmittenbereich nunmehr wie die Bandbereiche gelängt wird, so daß nicht länger Mittenschüsseln auftreten. Stets lassen sich in dem Mittenbereich oder Randbereichen des jeweiligen Metallbandes höhere Zugspannungen aufbauen und die Bandrandbereiche ebenso wie der Bandmittenbereich mit den zum Planieren jeweils erforderlichen Zugspannungen beaufschlagen.This object is achieved by the invention in the case of a generic roller set in that at least one of the two deflection rollers has a roller jacket which can be adjusted between a convex outer curvature and a concave inner curvature and the respective metal strip is guided around the adjustable deflecting roller with a predetermined wrap angle. - These measures of the invention have the result that with a continuous metal band and convex outer curvature a tensile stress concentration in the middle of the band and at least one concave inner curvature results in a tensile stress concentration in the peripheral zones. The tensile stress concentrations result in locally higher plastic deformations. Edge waves or center dishes that exist in the metal strip in question due to the length differences of individual metal strip strips over the strip width can thus be reduced or completely eliminated. Because with a convex outer curvature of the guide roller, the middle of the belt is overstretched and edge waves are eliminated in this way, while with a concave inner curvature of the guide roller, the transverse stresses that otherwise build up from the belt edges towards the center of the belt, i.e. the belt center area is now lengthened like the belt areas, so that center bowls no longer occur. You can always in the middle or edge areas of each Build up higher metal tensile stresses and apply the tensile stresses required for leveling to the strip edge areas as well as the strip center area.
Nach einer Ausführungsform der Erfindung, der selbständige Bedeutung zukommt, ist vorgesehen, daß die beiden Umlenkrollen als Spannrollensatz - mit angetriebener Zugrolle und Bremsrolle - ausgebildet sind und zwischen den beiden Umlenkrollen eine Zugreckstrecke aufgebaut ist, um besonders oberflächenempfindliche Metallbänder zu planieren, die beispielsweise für lithographische Zwecke bestimmt sind. Hier ist man bestrebt, auf ein Streckbiegerichten zum Planieren der Metallbänder zu verzichten, um Oberflächenschäden zu vermeiden. Nach einer anderen Ausführungsform der Erfindung mit selbständiger Bedeutung ist vorgesehen, daß vier Umlenkrollen zwei Spannrollensätze bilden und zwischen den beiden Zugrollen und Bremsrollen bildenden Spannrollensätzen ein Kaltwalzgerüst und/oder ein Streckbiegerichtgerüst angeordnet ist, wobei zumindest die dem Kaltwalzgerüst bzw. Streckbiegerichtgerüst unmittelbar vorgeordnete und unmittelbar nachgeordnete Umlenkrolle einen konvex bis konkav einstellbaren Rollenmantel aufweist. In diesen Fällen werden ähnliche Effekte beim Kaltwalzen und Streckbiegerichten wie beim Zugrecken erreicht. Durch gezielte Zugspannungskonzentrationen entweder im Bandmittenbereich oder in den Bandrandbereichen werden infolge einer höheren plastischen Verformung größere Streckgrade nicht nur beim Zugrecken, sondern auch beim Streckbiegerichten und eine größere Dickenreduzierung beim Kaltwalzen erzielt, um eben Randwellen oder Mittenschüsseln zu eliminieren. Stets können sämtliche Umlenkrollen bzw. Rollenpaare einen konvex bis konkav einstellbaren Rollenmantel aufweisen, um die beschriebenen Effekte zu verstärken. Die Umlenkrollen sind beispielsweise bei Zwischenschaltung eines Kaltwalzgerüstes paarweise vertikal übereinander und bei Zwischenschaltung eines Streckbiegerichtgerüstes horizontal nebeneinander angeordnet. Um besonders ausgeprägte höhere plastische Verformungen im Bandmittenbereich oder in den Bandrandbereichen zu erreichen, beträgt der Rollendurchmesser der einstellbaren Umlenkrollen mindestens 250 mm, während der Umschlingungswinkel mindestens 90° und vorzugsweise größer als 150° ist.According to one embodiment of the invention, which is of independent importance, it is provided that the two deflection rollers are designed as a tension roller set - with a driven pull roller and brake roller - and between the two deflection rollers a tensile stretch is built in order to level metal strips which are particularly sensitive to surface, for example for lithographic Purposes. The aim here is to avoid stretch-bending straightening to level the metal strips in order to avoid surface damage. According to another embodiment of the invention with independent importance, it is provided that four deflecting rollers form two sets of tensioning rollers and a cold rolling mill and / or a stretch-bending leveling mill is arranged between the two tensioning rollers and braking rollers, with at least the one that is immediately upstream and immediately downstream of the cold rolling mill or stretch-bending leveling tower Deflection roller has a convex to concave adjustable roller jacket. In these cases, similar effects are achieved in cold rolling and stretch bending straightening as in tension stretching. By means of targeted tensile stress concentrations either in the strip center area or in the strip edge areas, greater degrees of stretching are achieved not only during tensile stretching, but also during stretch bending straightening and a greater reduction in thickness during cold rolling due to a higher plastic deformation, in order to eliminate edge shafts or center dishes. All pulleys can always or pairs of rollers have a convex to concave adjustable roller jacket in order to reinforce the effects described. The deflection rollers are arranged, for example, vertically one above the other in pairs when a cold rolling mill is interposed and horizontally next to one another when a stretch bending straightener is interposed. In order to achieve particularly pronounced higher plastic deformations in the belt center area or in the belt edge areas, the roller diameter of the adjustable deflection rollers is at least 250 mm, while the wrap angle is at least 90 ° and preferably greater than 150 °.
Weiter lehrt die Erfindung, daß die jeweilige Umlenkrolle mit einem konvex bis konkav einstellbaren Rollenmantel eine zwischen dem Rollenmantel und dem Rollenkern angeordnete Druckkammer mit einer Druckmittelzuführung für ein hydraulisches oder pneumatisches Druckmittel aufweist und die konkave Innenwölbung bei drucklosem Zustand durch einen negativen Vorschliff gebildet ist. Dabei kann die Druckmittelzuführung eine axiale Drehdurchführung in einem der beiden Laderzapfen der jeweiligen Umlenkrolle und die Druckkammer eine Entlüftungsbohrung aufweisen. Bei geeigneter Wahl der Innenkontur des Rollenmantels erzielt man eine parabelähnliche Außenwölbung des Rollenmantels. Durch den negativen Vorschliff läßt sich eine parabelförmige Innenwölbung erreichen, so daß die Balligkeit der betreffenden Umlenkrollen bzw. ihres Rollenmantels in vorgegebenen Grenzen positiv oder negativ einstellbar ist. Die Entlüftungsbohrung ist im übrigen lediglich zum erstmaligen Füllen der Druckkammer mit dem Druckmittel erforderlich.The invention further teaches that the respective deflecting roller with a convex to concave adjustable roller jacket has a pressure chamber arranged between the roller jacket and the roller core with a pressure medium supply for a hydraulic or pneumatic pressure medium, and the concave inner curvature is formed by negative pre-grinding in the depressurized state. The pressure medium supply can have an axial rotary feedthrough in one of the two loader pins of the respective deflection roller and the pressure chamber can have a ventilation hole. With a suitable choice of the inner contour of the roller shell, a parabolic-like outer curvature of the roller shell is achieved. Due to the negative pre-grinding, a parabolic inner curvature can be achieved, so that the crowning of the deflecting rollers or their roller shell in question can be adjusted positively or negatively within predetermined limits. The vent hole is only required for the first time filling the pressure chamber with the pressure medium.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen:
- Fig. 1
- einen erfindungsgemäßen Rollensatz in der Ausführungsform eines Spannrollensatzes mit zwischen den beiden Umlenkrollen gebildeter Zugreckstrecke,
- Fig. 2
- zwei erfindungsgemäße Rollensätze in der Ausführungsform von Spannrollensätzen mit einem zwischengeschalteten Kaltwalzgerüst,
- Fig. 3
- zwei erfindungsgemäße Rollensätze in der Ausführungsform von Spannrollensätzen mit einem zwischengeschaltetem Streckbiegerichtgerüst,
- Fig. 4
- eine einstellbare Umlenkrolle nach der Erfindung im Axialschnitt und
- Fig. 5
- ausschnittsweise den Gegenstand nach Fig. 1 mit konvexer Außenwölbung nach a), konkaver Innenwölbung nach b) und dem möglichen Arbeitsbereich durch die Kombination von a) und b).
- Fig. 1
- 1 a roller set according to the invention in the embodiment of a tension roller set with a stretching section formed between the two deflection rollers,
- Fig. 2
- two roller sets according to the invention in the embodiment of tension roller sets with an interposed cold rolling mill,
- Fig. 3
- two roller sets according to the invention in the embodiment of tension roller sets with an intermediate stretch-bending straightening frame,
- Fig. 4
- an adjustable pulley according to the invention in axial section and
- Fig. 5
- 1 with the convex outer curvature according to a), concave inner curvature according to b) and the possible work area by the combination of a) and b).
In den Figuren ist ein Rollensatz mit zumindest zwei Umlenkrollen 1, 2 für die S-förmige Umlenkung dünner Metallbänder 3, insbesondere von Metallbändern mit einer Banddicke bis zu 1 mm und einer Bandbreite von mehr als 800 mm dargestellt. Zumindest eine der beiden Umlenkrollen 1 oder 2 weist einen zwischen einer konvexen Außenwölbung 4 einer konkaven Innenwölbung 5 einstellbaren Rollenmantel 6 auf, wobei das jeweilige Metallband 3 um die einstellbare Umlenkrolle mit einem Umschlingungswinkel von mindestens 90°, vorzugsweise mehr als 150° geführt ist.The figures show a set of rollers with at least two
Nach Fig. 1 können die beiden Umlenkrollen 1, 2 als Spannrollensatz mit angetriebener Zugrolle 1 und Bremsrolle 2 ausgebildet sein. In diesem Fall ist zwischen den beiden Umlenkrollen 1, 2 eine Zugreckstrecke Z aufgebaut.1, the two
Nach den Figuren 2 und 3 bilden vier Umlenkrollen 1, 2, 7, 8 zwei Spannrollensätze, wobei zwischen den beiden Zugrollen und Bremsrollen bildenden Spannrollensätzen 1, 7 und 2, 8 ein Kaltwalzgerüst 9 oder ein Streckbiegerichtgerüst 10 angeordnet ist. Zumindest die dem Kaltwalzgerüst 9 oder dem Streckbiegegerüst 10 unmittelbar vorgeordnete und unmittelbar nachgeordnete Umlenkrolle 1, 2 weist einen konvex bis konkav einstellbaren Rollenmantel 6 auf.According to FIGS. 2 and 3, four
Stets können sämtliche Umlenkrollen 1, 2, 7, 8 bzw. Rollenpaare einen konvex bis konkav einstellbaren Rollenmantel 6 besitzen. Nach Fig. 2 sind die Umlenkrollen 1, 7 und 2, 8 paarweise verikal übereinander angeordnet, nach Fig. 3 paarweise horizontal nebeneinander angeordnet. Die Rollendurchmesser 1, 2 bzw. 7, 8 der einstellbaren Umlenkrollen betragen mindestens 250 mm, damit unter Berücksichtigung eines Umschlingungswinkels von mehr als 90° und insbesondere mehr als 150° hinreichend hohe plastische Verformungen in entweder den Bandrandbereich oder dem Bandmittenbereich erzielt werden können.All deflecting
In Fig. 4 ist eine Umlenkrolle 1 mit einem konvex bis konkav einstellbaren Rollenmantel 6 dargestellt, die zwischen dem Rollenmantel 6 und dem Rollenkern 11 eine Druckkammer 12 mit einer Druckmittelzuführung 13 für ein hydraulisches oder pneumatisches Druckmittel aufweist, wobei die konkave Innenwölbung 5 bei drucklosem Zustand durch einen negativen Vorschliff gebildet ist. Die Druckmittelzuführung 13 weist eine axiale Drehdurchführung 14 in einem der beiden Lagerzapfen 15 der jeweiligen Umlenkrolle 1 und die Druckkammer 12 eine Entlüftungsbohrung 16 für die Erstfüllung auf.4 shows a
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4230243A DE4230243C1 (en) | 1992-09-10 | 1992-09-10 | Roller set for the S-shaped deflection of thin metal strips to be leveled |
| DE4230243 | 1992-09-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0587995A1 true EP0587995A1 (en) | 1994-03-23 |
| EP0587995B1 EP0587995B1 (en) | 1996-03-20 |
Family
ID=6467652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93108722A Expired - Lifetime EP0587995B1 (en) | 1992-09-10 | 1993-05-29 | Set of rollers with at least two deflection rollers for S-shaped deflection of thin metal strips |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5341664A (en) |
| EP (1) | EP0587995B1 (en) |
| CA (1) | CA2104852C (en) |
| DE (1) | DE4230243C1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1479460A1 (en) * | 2003-05-23 | 2004-11-24 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Method and apparatus for continuous straightening of metal strips |
| EP1955786A1 (en) | 2007-02-07 | 2008-08-13 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Device and method for levelling metal strips |
| DE102023109502B3 (en) | 2023-04-14 | 2024-09-19 | Welser Profile Austria Gmbh | Method for straightening a metal strip with flatness defects |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19509067A1 (en) * | 1995-03-14 | 1996-09-19 | Bwg Bergwerk Walzwerk | Process for the continuous straightening of thin metal strips, in particular aluminum and stainless steel strips with strip thicknesses of 0.1 mm to 0.5 mm, and straightening system for carrying out the method |
| US6571134B1 (en) * | 1998-02-18 | 2003-05-27 | Siemens Aktiengesellschaft | Method and device for determining an intermediary profile of a metal strip |
| DE10031728C1 (en) * | 2000-06-29 | 2002-01-10 | Aluminium Norf Gmbh | Belt processing device |
| DE10059304A1 (en) * | 2000-11-29 | 2002-06-06 | Sms Demag Ag | Casting roller for casting and / or supporting a casting strand, in particular for a two-roller casting machine |
| ATE381394T1 (en) * | 2001-02-07 | 2008-01-15 | Sms Demag Ag | DEVICE FOR IMPROVING THE FLATNESS OF ROLLED STRIP, PARTICULARLY STEEL STRIP |
| DE10114883C1 (en) * | 2001-03-26 | 2002-10-31 | Bwg Bergwerk Walzwerk | Train stretching system for steel and metal strips |
| DE10121981C1 (en) * | 2001-05-05 | 2002-12-12 | Bwg Bergwerk Walzwerk | Strip treatment plant for straightening a metal strip |
| DE10155122B4 (en) * | 2001-11-09 | 2010-07-29 | Sms Siemag Aktiengesellschaft | Method and device for stretch-bending straightening of metal strip, in particular hot or cold rolled steel strip |
| US6668610B2 (en) | 2001-12-27 | 2003-12-30 | Alcan International Limited | Method for continuous tension leveling of aluminum strip |
| EP1987898A4 (en) * | 2006-02-21 | 2013-03-06 | Univ Jilin | Flexible three-dimensional work-piece forming equipment |
| US9783384B2 (en) | 2015-03-31 | 2017-10-10 | Crane Payment Innovations, Inc. | Bi-modal rollers |
| CN111558634A (en) * | 2020-06-16 | 2020-08-21 | 李学海 | Metal plate leveling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53117664A (en) * | 1977-03-23 | 1978-10-14 | Sumitomo Metal Ind Ltd | Method and apparatus for controlling tension distribution in strip rolling |
| JPS53117665A (en) * | 1977-03-23 | 1978-10-14 | Sumitomo Metal Ind Ltd | Method and apparatus for controlling tension distribution in strip rolling |
| JPS57137431A (en) * | 1981-02-19 | 1982-08-25 | Nippon Kokan Kk <Nkk> | Crown controller of hearth roll for continuous annealing furnace |
| DE3525343C1 (en) * | 1985-04-20 | 1986-12-11 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg | Method and apparatus for the continuous levelling of metal strips |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1943005A (en) * | 1928-05-26 | 1934-01-09 | United Eng Foundry Co | Strip mill |
| US2219665A (en) * | 1937-05-19 | 1940-10-29 | Simons Abraham | Rolling mechanism |
| US3535902A (en) * | 1967-03-06 | 1970-10-27 | Hoesch Ag | Method and apparatus for straightening sheet materials |
| FR1575818A (en) * | 1968-05-16 | 1969-07-25 | ||
| AT345632B (en) * | 1976-11-18 | 1978-09-25 | Voest Ag | DEVICE FOR ALIGNING FERROMAGNETIC SHEET METAL STRIPS |
| JPS6120621A (en) * | 1984-07-06 | 1986-01-29 | Mitsubishi Heavy Ind Ltd | Shape straightening method of strip |
| DE3912676A1 (en) * | 1989-04-18 | 1990-10-25 | Bwg Bergwerk Walzwerk | METHOD AND DEVICE FOR CONTINUOUSLY REACHING THIN BANDS, ESPECIALLY METAL BANDS |
-
1992
- 1992-09-10 DE DE4230243A patent/DE4230243C1/en not_active Expired - Lifetime
-
1993
- 1993-05-29 EP EP93108722A patent/EP0587995B1/en not_active Expired - Lifetime
- 1993-07-14 US US08/092,230 patent/US5341664A/en not_active Expired - Lifetime
- 1993-08-25 CA CA002104852A patent/CA2104852C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53117664A (en) * | 1977-03-23 | 1978-10-14 | Sumitomo Metal Ind Ltd | Method and apparatus for controlling tension distribution in strip rolling |
| JPS53117665A (en) * | 1977-03-23 | 1978-10-14 | Sumitomo Metal Ind Ltd | Method and apparatus for controlling tension distribution in strip rolling |
| JPS57137431A (en) * | 1981-02-19 | 1982-08-25 | Nippon Kokan Kk <Nkk> | Crown controller of hearth roll for continuous annealing furnace |
| DE3525343C1 (en) * | 1985-04-20 | 1986-12-11 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg | Method and apparatus for the continuous levelling of metal strips |
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| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 2, no. 152 (C - 31) 20 December 1978 (1978-12-20) * |
| PATENT ABSTRACTS OF JAPAN vol. 6, no. 235 (C - 136) 20 November 1982 (1982-11-20) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1479460A1 (en) * | 2003-05-23 | 2004-11-24 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Method and apparatus for continuous straightening of metal strips |
| EP1955786A1 (en) | 2007-02-07 | 2008-08-13 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Device and method for levelling metal strips |
| DE102007006810B3 (en) * | 2007-02-07 | 2008-10-02 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Device for leveling metal strips |
| DE102023109502B3 (en) | 2023-04-14 | 2024-09-19 | Welser Profile Austria Gmbh | Method for straightening a metal strip with flatness defects |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0587995B1 (en) | 1996-03-20 |
| DE4230243C1 (en) | 1994-01-27 |
| CA2104852C (en) | 1995-08-22 |
| US5341664A (en) | 1994-08-30 |
| CA2104852A1 (en) | 1994-03-11 |
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