EP1789211B1 - Strip treatment installation, and use of a tension roller in a strip treatment installation - Google Patents

Strip treatment installation, and use of a tension roller in a strip treatment installation Download PDF

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Publication number
EP1789211B1
EP1789211B1 EP05778086A EP05778086A EP1789211B1 EP 1789211 B1 EP1789211 B1 EP 1789211B1 EP 05778086 A EP05778086 A EP 05778086A EP 05778086 A EP05778086 A EP 05778086A EP 1789211 B1 EP1789211 B1 EP 1789211B1
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EP
European Patent Office
Prior art keywords
strip
tension roller
tension
treatment installation
roller
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EP05778086A
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German (de)
French (fr)
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EP1789211A1 (en
Inventor
Gert Mücke
Frank Gorgels
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BETR FORSCH INST ANGEW FORSCH
BFI VDEH Institut fuer Angewandte Forschung GmbH
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BETR FORSCH INST ANGEW FORSCH
BFI VDEH Institut fuer Angewandte Forschung GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C19/00—Devices for straightening wire or like work combined with or specially adapted for use in connection with drawing or winding machines or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/38—Strain gauges
    • 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
    • B21B39/082—Bridle devices

Definitions

  • the invention relates to a belt treatment plant with a tensioning roller pair, in which the belt is guided over a tensioning roller of the tensioning roller pair and the belt tension is increased or reduced by the tensioning roller between the inlet to the tensioning roller and the outlet of the tensioning roller.
  • the band passing through the strip treatment plant is subjected to a strip tensile force.
  • This can be done with tension rollers.
  • tension rollers These tensioners are usually motor driven and retard or accelerate the belt by transmitting frictional forces. Due to the delay of the tape, the tape tension can be increased after the tension roller. By an acceleration of the belt, the tape tension can be reduced to the tension roller.
  • band straightening equipment used to eliminate the unevenness. By plastic stretching the shorter band shares in the band, a length compensation is achieved and are thus removed, for example, center or edge waves. These are band sections, which were different in length before the straightening process and therefore partly wavy, different plastic elongated.
  • the belt treatment plants used for this purpose regularly have an inlet clamping drum set with tension rollers, in which the strip tension is increased in relation to the strip tension in the line, a stretching zone or a stretch bending stand and an outlet tensioning drum set, in which the tensioning cable is reduced again to the level of the line.
  • the strip In the stretch bending stand, the strip is bent alternately under high tension around bending rolls of small diameter. Here, the elastic limit is exceeded in the band. Due to the superposition of the elastoplastic bending with the strip tension, a permanent elongation, the so-called degree of stretching, is generated. When drawing the tape is stretched to a certain length so strong that the entire band cross-section plasticized. The required tension is applied by the tension drum sets and must reach the yield point of the material. A combination of drawstretch and stretch bend density is used for certain products, such as aluminum tape, since this often results in better flatness results.
  • the band In the band straightening process, the band is set under high longitudinal tension. Waves or bumps in the band, which would be visible without an applied longitudinal traction, do not appear.
  • the self-adjusting tension distribution is therefore dependent on the length distribution present in the belt. In this case, take the shorter band fibers when applying an outer band tension higher voltage components than longer band fibers.
  • a measurement method for flatness measurement of bands is out EP 0 988 904 A2 known. There, a method is described according to which the strip tension for measuring the flatness is reduced by means of tension rollers, so-called S-roller sets. An optical measuring device arranged after the outlet of the tape from the S-roll set measures the flatness of the tape in the almost belt-tension-free tape. After measuring the flatness, the strip tension is increased again to the strip tension of the line by means of S-roll sets.
  • measuring rollers are for example made DE 42 36 657 C2 . DE 297 21 085 U1 . DE 102 07 501 C2 . DE 198 38 457 A1 . DE 199 18 699 A1 and DE 196 16 980 A1 known.
  • the installation location for the measuring roller is the option to use it either in the stretching zone, after the bending stand or after the Auslaufspanntrommelsatz, for example in front of the take-up drum.
  • the installation of the measuring roller in front of the take-up drum also results in that the band areas, which were deformed in the bending stand, are guided considerably time and position offset over the measuring roller.
  • This so-called dead zone which can take lengths of up to 20 m, depending on the system configuration, leads to devalued strip lengths, which can correspond to a multiple of the dead zone. This especially concerns the operating conditions during the in-home stationary phase, when, for example, after the threading of a new band, adjustment operations must be carried out on the bending stand until the optimum strip flatness has been set.
  • the invention has the object to provide a device for detecting the band flatness in strip processing plants, which reduces the dead zone, reduces the settling time, increases the process speed and avoids influencing the tape to be measured during the measurement.
  • the invention is based on the basic idea of designing the tensioning roller provided anyway for setting the desired strip tensioner as a measuring roller.
  • the tension roller for a strip treatment plant according to the invention is equipped with at least one measuring sensor arranged on the circumference of the tensioning roller for detecting the tension in the belt.
  • several measuring sensors are provided to measure the stress distribution in the belt.
  • the measuring sensor may be arranged in recesses open to the outer circumference of the roller.
  • the measuring sensor may be arranged in the vicinity of the outer circumference of the tensioning roller such that the deflecting force of the belt acting in the radial direction acts on the measuring sensor through the material layer of the tensioning roller remaining between the measuring sensor and the outer circumference.
  • strain gauges or so-called Preßduktoren can be used as measuring sensors in particular piezoelectric force transmitter.
  • Preßduktoren were developed by the company ABB about 1953 and are based on the magnetoelastic effect.
  • a tension roller is characterized in that it, for example, by a motor drive, their surface texture and / or their storage is designed to act, for example, by frictional forces on the tape and accelerate the guided over them tape section depending on the effective direction or slow down.
  • the measuring sensors can be arranged in a row in the direction of the tension roller longitudinal axis. As a result, the voltage state in the band in the same band length position is measured by the measuring sensors. As a result, the flatness of the strip at this strip length position can be determined.
  • Alternative arrangements of the measuring sensors are, for example, a helical arrangement on the circumference of the tensioning roller.
  • the tensioning roller is particularly preferably coated, particularly preferably with rubber or polyurethane. Due to the coating, frictional forces for generating the desired strip tension can be transferred particularly well to the strip.
  • the coating is preferably designed such that it also covers the measuring sensor, so for example, also covers a arranged on the outer circumference of the roll strain gauges.
  • the tension pulley has a diameter resulting from the relationship h max / roll ⁇ yield point / modulus, where h max is the maximum thickness of the strip, D roll is the tension roll diameter, yield point is the yield point of the strip material, and modulus of elasticity is Modulus of elasticity of the strip material is.
  • h max is the maximum thickness of the strip
  • D roll is the tension roll diameter
  • yield point is the yield point of the strip material
  • modulus of elasticity Modulus of elasticity of the strip material is.
  • This large roll diameter avoids the introduction of ribbon form errors, such as longitudinal and transverse bends, into the strip.
  • the tension roller may be formed as a hollow shaft. This training also simplifies access to the measuring sensors.
  • measuring sensors in measuring rollers and training of measuring rollers is on DE 42 36 657 C2 .
  • DE 199 18 699 A1 and DE 196 16 980 A1 Reference is made to arrangements of measuring sensors in measuring rollers and disclose embodiments of measuring rollers
  • a measuring sensor may be a force transducer with a cover, which rests in the operating state with its surface directly on the surface of the tape to be tested.
  • the cover is preferably without wall contact exclusively in a recess in which the force transducer is arranged, displaceable in the direction of the axis of the measuring roller.
  • the cover may be acted upon by the deflection force of the belt, and the two opposite end faces of the force transducer are loaded by both of the one end face is clamped on the footprint of the recess, while the other of the Beauschlagung is exposed with the deflection force on the cover.
  • the belt treatment plant may comprise a tensioning roller set, in which the tensioning roller, which has at least one measuring sensor arranged on the circumference of the tensioning roller, is the tensioning roller closer to the treatment step in the direction of belt travel.
  • the tensioning roller which has at least one measuring sensor arranged on the circumference of the tensioning roller, is the tensioning roller closer to the treatment step in the direction of belt travel.
  • a belt treatment plant in the sense of the invention described is any conceivable device which is suitable for transport, for treatment, for coating or the like of a continuous belt.
  • the strip in a strip treatment plant according to the invention, can be guided around the tensioning roller with a wrapping angle of at least 180 °, in particular preferably of 270 °.
  • a tension roller may be used in the belt treatment plant for measuring the change of the strip tension from the inlet of the belt to the tensioning roller for the outfeed of the belt from the tensioning roller. In this way, results can be determined about the strip tension structure via the tension pulley.
  • belt treatment plant has a Einlaufspanntrommelsatz 1 with tension rollers 2,3,4,5. Downstream of the run-in tensioning drum set in the strip running direction is a stretch bending stand 6. The run-length bending stand 6 is followed downstream in the strip running direction by a run-out tensioning drum set 7 with tensioning rollers 8, 9, 10, 11. The tension roller 8 of the Auslaufspanntrommelsatzes 7 is designed as a tension roller with measuring sensors.
  • the Bandzug of the in Fig. 1 shown belt treatment plant incoming belt is increased by the Einlaufspanntrommelsatz.
  • the stretch bender 6 treats the strip.
  • the strip tension is lowered to a level determined for the subsequent method steps.
  • the band flatness is measured.
  • the measurement results of the flatness measurement are fed to the regulation of the stretch bending stand 6 in order to achieve a predetermined flatness.
  • Fig. 2 illustrated arrangement of Kraftmeßgeber arrangement is an all-round gap between the force transducer and its cover on the one hand and the interior of the recess 22 on the other.
  • This gap is preferably between 0.01 to 0.05 mm. It has been found that, under these conditions, there are no damages or marks on the surface of the belt running over the tension roller in the gap width.
  • the belt 28 passes over the roller body 24 and the Meßgeberabdeckung 23.
  • the encoder 21 is clamped with one of its end faces 31 on the contact surface 33. Its opposite end face 32 is subjected to the application of the deflecting force F via the cover 23.
  • the tension roller rests with its surface 27 and the surface 26 of the cover 23 in the operating state directly on the surface 29 of the strip 28 to be tested.
  • a gap 45 is provided between the cover 23 and the inner wall 30 of the recess 22.
  • belt treatment plant differs from the in Fig. 1 shown in that between the Einlaufspanntrommelsatz 1 with tension rollers 2,3,4,5 and the Auslaufspanntrommelsatz 7 with tensioners 8,9,10,11 no stretch bender 6 is provided.
  • the band treatment takes place here by means of stretching.
  • another tensioning roller pair 12, 13 and in the outlet tensioning drum set another tensioning roller pair 14, 15 is provided in the inlet tensioning drum set.
  • Fig. 4 is a combined treatment by stretching and stretch bending shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

The invention relates to a device for determining the surface evenness of a strip in strip treatment installations, said device reducing the dead ranges, shortening the response time, increasing the process speed, and preventing the strip to be measured from being influenced during the measurement. To this end, the strip is guided over a tension roller for a strip treatment installation, and the traction exerted on the strip is increased or reduced between the feeding point of the tension roller and the delivery point of the tension roller, a measuring sensor arranged on the periphery of the tension roller being used to detect the tension distribution in the strip.

Description

Die Erfindung betrifft, eine Bandbehandlungsanlage mit einem Spannrollenpaar, bei der das Band über eine Spannrolle des Spannrollenpaars geführt wird und der Bandzug durch die Spannrolle zwischen dem Einlauf auf die Spannrolle und dem Auslauf von der Spannrolle erhöht bzw. verringert wird.The invention relates to a belt treatment plant with a tensioning roller pair, in which the belt is guided over a tensioning roller of the tensioning roller pair and the belt tension is increased or reduced by the tensioning roller between the inlet to the tensioning roller and the outlet of the tensioning roller.

In Bandbehandlungsanlagen, wie beispielsweise Anlagen zum Streckbiegerichten oder Zugrecken von Bandmaterial, Walzwerken oder dergleichen wird das die Bandbehandlungsanlage durchlaufende Band mit einer Bandzugkraft beaufschlagt. Dies kann mit Spannrollen durchgeführt werden. Diese Spannrollen sind in der Regel motorisch angetrieben und verzögern bzw. beschleunigen das Band durch Übertragung von Reibungskräften. Durch die Verzögerung des Bands kann der Bandzug nach der Spannrolle erhöht werden. Durch eine Beschleunigung des Bands kann der Bandzug nach der Spannrolle reduziert werden.In strip processing plants, such as plants for stretch bending or stretching of strip material, rolling mills or the like, the band passing through the strip treatment plant is subjected to a strip tensile force. This can be done with tension rollers. These tensioners are usually motor driven and retard or accelerate the belt by transmitting frictional forces. Due to the delay of the tape, the tape tension can be increased after the tension roller. By an acceleration of the belt, the tape tension can be reduced to the tension roller.

Eine Art der Bandbehandlungsanlagen sind Bandrichtanlagen, die zur Beseitigung der Unplanheit eingesetzt werden. Durch plastisches Dehnen der kürzeren Bandanteile im Band wird ein Längenausgleich erreicht und werden somit zum Beispiel Mitten- oder Randwellen entfernt. Dabei werden Bandabschnitte, die vor dem Richtvorgang verschieden lang und daher teilweise wellig waren, unterschiedlich plastisch gelängt.One type of belt processing equipment is band straightening equipment used to eliminate the unevenness. By plastic stretching the shorter band shares in the band, a length compensation is achieved and are thus removed, for example, center or edge waves. These are band sections, which were different in length before the straightening process and therefore partly wavy, different plastic elongated.

Für das Richten von Bändern werden häufig kontinuierlich arbeitende Richtverfahren eingesetzt. Die hierfür verwendeten Bandbehandlungsanlagen weisen regelmäßig einen Einlaufspanntrommelsatz mit Spannrollen auf, in dem der Bandzug gegenüber dem Bandzug in der Linie erhöht wird, eine Reckzone oder ein Streckbiegegerüst und einen Auslaufspanntrommelsatz, in dem der Spannzug wieder auf das Niveau der Linie reduziert wird.For straightening ribbons, continuous straightening techniques are often used. The belt treatment plants used for this purpose regularly have an inlet clamping drum set with tension rollers, in which the strip tension is increased in relation to the strip tension in the line, a stretching zone or a stretch bending stand and an outlet tensioning drum set, in which the tensioning cable is reduced again to the level of the line.

Im Streckbiegegerüst wird das Band unter hohem Zug um Biegewalzen kleinen Durchmessers alternierend gebogen. Hierbei wird im Band die Elastizitätsgrenze überschritten. Durch die Überlagerung der elastoplastischen Biegung mit dem Bandzug wird eine bleibende Längung, der sogenannte Streckgrad, erzeugt. Beim Zugrecken wird das Band auf einer bestimmten Länge so stark gedehnt, daß der gesamte Bandquerschnitt plastifiziert. Die erforderliche Zugspannung wird durch die Spanntrommelsätze aufgebracht und muß die Streckgrenze des Materials erreichen. Eine Kombination von Zugrecken und Streckbiegerichten wird für bestimmte Produkte wie zum Beispiel bei Aluminiumband eingesetzt, da hierdurch häufig bessere Planlageergebnisse erreicht werden.In the stretch bending stand, the strip is bent alternately under high tension around bending rolls of small diameter. Here, the elastic limit is exceeded in the band. Due to the superposition of the elastoplastic bending with the strip tension, a permanent elongation, the so-called degree of stretching, is generated. When drawing the tape is stretched to a certain length so strong that the entire band cross-section plasticized. The required tension is applied by the tension drum sets and must reach the yield point of the material. A combination of drawstretch and stretch bend density is used for certain products, such as aluminum tape, since this often results in better flatness results.

Je nach Werkstoff, Banddicke, Bandbreite und Typ der Eingangsunplanheit werden für die Zugrollen oder das Streckbiegegerüst überwiegend die Einstellparameter experimentell bestimmt. So ist man auch heute noch beim Betreiben des Richtprozesses weitgehend auf Erfahrungswerte angewiesen.Depending on the material, strip thickness, bandwidth and type of input unevenness, the adjustment parameters are predominantly determined experimentally for the pull rolls or the stretch bending stand. Thus, even today, the operation of the straightening process relies largely on empirical values.

Bei den Bandrichtverfahren wird das Band unter hohe Längszugspannung gesetzt. Wellen oder Beulen im Band, die ohne angelegten Längszug sichtbar wären, treten nicht in Erscheinung. Die sich einstellende Zugspannungsverteilung ist daher abhängig von der im Band vorliegenden Längenverteilung. Dabei übernehmen die kürzeren Bandfasern beim Anlegen einer äußeren Bandzugspannung höhere Spannungsanteile als längere Bandfasern.In the band straightening process, the band is set under high longitudinal tension. Waves or bumps in the band, which would be visible without an applied longitudinal traction, do not appear. The self-adjusting tension distribution is therefore dependent on the length distribution present in the belt. In this case, take the shorter band fibers when applying an outer band tension higher voltage components than longer band fibers.

Damit die Reckzone und/oder das Biegegerüst optimal eingestellt werden können, ist es erforderlich, die Planheit des Bandes kontinuierlich zu messen.In order for the stretching zone and / or the bending stand to be optimally adjusted, it is necessary to continuously measure the flatness of the strip.

Ein Meßverfahren zur Planheitsmessung von Bändern ist aus EP 0 988 904 A2 bekannt. Dort wird ein Verfahren beschrieben, gemäß dem der Bandzug für die Messung der Planheit mittels Spannrollen, sogenannten S-Rollensätzen, reduziert wird. Eine nach dem Auslauf des Bands aus dem S-Rollensatz angeordnete optische Meßvorrichtung mißt die Bandplanheit in dem nahezu bandzugsfreien Band. Nach der Messung der Bandplanheit wird der Bandzug wieder auf den Bandzug der Linie mittels S-Rollensätzen erhöht.A measurement method for flatness measurement of bands is out EP 0 988 904 A2 known. There, a method is described according to which the strip tension for measuring the flatness is reduced by means of tension rollers, so-called S-roller sets. An optical measuring device arranged after the outlet of the tape from the S-roll set measures the flatness of the tape in the almost belt-tension-free tape. After measuring the flatness, the strip tension is increased again to the strip tension of the line by means of S-roll sets.

Für die Ermittlung der Unplanheit des Bands werden in Bandrichtanlagen zunehmend separate Meßrollen eingesetzt. Derartige Meßrollen sind beispielsweise aus DE 42 36 657 C2 , DE 297 21 085 U1 , DE 102 07 501 C2 , DE 198 38 457 A1 , DE 199 18 699 A1 und DE 196 16 980 A1 bekannt. Als Einbauort für die Meßrolle steht die Wahlmöglichkeit, diese entweder in die Reckzone, nach dem Biegegerüst oder nach dem Auslaufspanntrommelsatz zum Beispiel vor der Aufwickeltrommel einzusetzen.To determine the unplanarity of the band increasingly separate measuring rollers are used in Bandrichtanlagen. Such measuring rollers are for example made DE 42 36 657 C2 . DE 297 21 085 U1 . DE 102 07 501 C2 . DE 198 38 457 A1 . DE 199 18 699 A1 and DE 196 16 980 A1 known. The installation location for the measuring roller is the option to use it either in the stretching zone, after the bending stand or after the Auslaufspanntrommelsatz, for example in front of the take-up drum.

Anlagebedingt sind in der Reckzone nach dem Biegegerüst häufig sehr beengte Einbauverhältnisse vorzufinden. Dies wiederum hat zur Folge, daß der einsetzbare Rollendurchmesser für die Meßrolle begrenzt ist. Beim Umlenken des unter hohem Längszug stehenden Bandes um den Meßrollenkörper werden hohe Biegespannungen in das Band eingeleitet, die in Zusammenwirken mit dem hohen Bandzug einen im Band verbleibenden Formfehler (Längs- oder Querbogen) erzeugen, der für die Weiterverarbeitung des Bandmaterials störend ist. In dieser Einbaulage bewirkt das Messen der Bandplanheit mit einer Meßrolle somit das Einbringen eines weiteren Planheitsfehlers und ist deshalb nicht zweckmäßig.Due to the installation, very tight installation conditions are often found in the stretching zone after the bending stand. This in turn has the consequence that the usable roll diameter is limited for the measuring roller. When deflecting the standing under high Längszug band around the Meßrollenkörper high bending stresses are introduced into the band, which produce in cooperation with the high strip tension remaining in the band form error (longitudinal or transverse bow), which is disturbing for the further processing of the strip material. In this installation position, measuring the flatness of the strip with a measuring roller thus brings about the introduction of a further flatness error and is therefore not expedient.

Zwischen dem Auslaufspanntrommelsatz und der Aufwickeltrommel sind die Einbaubedingungen für die Meßrolle ebenfalls beengt. Wegen des deutlich niedrigeren Bandzugsspannungsniveaus besteht in diesem Anlagenbereich jedoch die Gefahr der Längs- und Querbogenbildung weniger. Hier ist vielmehr der Einfluß der Wickelgeometrie beim Aufwickeln des Bandes auf die Aufwickeltrommel von Bedeutung. Beim Aufwickeln von Bändern, deren Querschnittsprofil von der rechteckigen Form abweicht, ergeben sich über die Bandbreite unterschiedliche Wickeldurchmesser. Dieser Effekt tritt in besonderem Maße beim Aufwickeln von sogenanntem Spaltband auf, das durch Längsteilung von warmgewalztem Breitband hergestellt wird. Diese Geometrieabweichungen verursachen bei einem unter Längszug stehenden Band Spannungsumverteilungen über die Bandbreite, die zu einem Anstieg der örtlichen Bandzugspannung von einer Bandseite zur anderen führen. In diesen Fällen ist der oben beschriebene, dem Meßprinzip zugrundeliegende proportionale Zusammenhang zwischen Bandzugspannung und Bandlängenänderung wegen dieses Störeffekts nicht mehr gegeben. Dieses Meßergebnis beeinflussende Störspannungen lassen sich nur durch sogenannte "Abschottvorrichtungen" vermeiden, wie sie beispielsweise in DE 199 45 202 A1 beschrieben werden. Die Nachrüstung bestehender Bandrichtanlagen mit solchen Abschottsystemen ist wegen zusätzlichen Platzbedarfs ohne kostenintensive Umbaumaßnahmen jedoch nicht möglich.Between the spout drum set and the take-up drum the installation conditions for the measuring roller are also cramped. Because of the significantly lower band tension level exists in this plant area However, the risk of longitudinal and transverse bowing less. Here, rather, the influence of the winding geometry when winding the tape on the take-up drum is of importance. When winding tapes whose cross-sectional profile deviates from the rectangular shape, resulting over the bandwidth different winding diameter. This effect occurs particularly when winding up so-called slit strip, which is produced by longitudinal division of hot-rolled broadband. These geometric variations cause tape redistribution across the bandwidth in a longitudinally drawn belt, which results in an increase in local tape tension from one side of the belt to the other. In these cases, the above-described, the measuring principle underlying proportional relationship between the tape tension and tape length change due to this disruptive effect is no longer given. This measurement result influencing interference voltages can be avoided only by so-called "Abschottvorrichtungen", as for example in DE 199 45 202 A1 to be discribed. The retrofitting of existing Bandrichtanlagen with such Abschottsystemen is not possible because of additional space without costly reconstruction measures.

Der Einbau der Meßrolle vor der Aufwickeltrommel führt ferner dazu, daß die Bandbereiche, die im Biegegerüst verformt wurden, erheblich zeit- und lageversetzt über die Meßrolle geführt werden. Diese sogenannte Totstrecke, die je nach Anlagenkonfiguration Längen von bis zu 20 m annehmen kann, führt zu abgewerteten Bandlängen, die einem Vielfachen der Totstrecke entsprechen können. Dies betrifft vor allem die Betriebszustände während der innenstationären Phase, wenn zum Beispiel nach dem Einfädeln eines neuen Bandes Einregelvorgänge beim Biegegerüst vorgenommen werden müssen, bis die optimale Bandplanheit eingestellt ist.The installation of the measuring roller in front of the take-up drum also results in that the band areas, which were deformed in the bending stand, are guided considerably time and position offset over the measuring roller. This so-called dead zone, which can take lengths of up to 20 m, depending on the system configuration, leads to devalued strip lengths, which can correspond to a multiple of the dead zone. This especially concerns the operating conditions during the in-home stationary phase, when, for example, after the threading of a new band, adjustment operations must be carried out on the bending stand until the optimum strip flatness has been set.

Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung zum Erfassen der Bandplanheit in Bandbehandlungsanlagen vorzuschlagen, die die Totstrecke reduziert, die Einregelzeit verkürzt, die Prozeßgeschwindigkeit erhöht und eine Beeinflussung des zu messenden Bands während der Messung vermeidet.Against this background, the invention has the object to provide a device for detecting the band flatness in strip processing plants, which reduces the dead zone, reduces the settling time, increases the process speed and avoids influencing the tape to be measured during the measurement.

Diese Aufgabe wird durch den Gegenstand des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben.This object is solved by the subject matter of claim 1. Advantageous embodiments are specified in the subclaims.

Die Erfindung geht von dem Grundgedanken aus, die für die Einstellung des gewünschten Bandzugs ohnehin vorgesehene Spannrolle als Meßrolle auszubilden. Hierfür ist die Spannrolle für eine erfindungsgemäße Bandbehandlungsanlage mit mindestens einem am Umfang der Spannrolle angeordneten Meßsensor zur Erfassung der Spannung im Band ausgestattet. In der Regel sind mehrere Meßsensoren vorgesehen, um die Spannungsverteilung im Band zu messen.The invention is based on the basic idea of designing the tensioning roller provided anyway for setting the desired strip tensioner as a measuring roller. For this purpose, the tension roller for a strip treatment plant according to the invention is equipped with at least one measuring sensor arranged on the circumference of the tensioning roller for detecting the tension in the belt. As a rule, several measuring sensors are provided to measure the stress distribution in the belt.

Dabei kann der Meßsensor in zum Außenumfang der Rolle offenen Ausnehmungen angeordnet sein. Alternativ kann der Meßsensor in der Nähe des Außenumfangs der Spannrolle derart angeordnet sein, daß die in Radialrichtung wirkende Umlenkkraft des Bandes durch die zwischen Meßsensor und Außenumfang verbleibende Materialschicht der Spannrolle auf den Meßsensor wirkt. Als Meßsensoren können insbesondere piezoelektrische Kraftgeber, Dehnungsmeßstreifen oder sogenannte Preßduktoren eingesetzt werden. Preßduktoren wurden von der Firma ABB ca. 1953 entwickelt und basieren auf dem magnetoelastischem Effekt.In this case, the measuring sensor may be arranged in recesses open to the outer circumference of the roller. Alternatively, the measuring sensor may be arranged in the vicinity of the outer circumference of the tensioning roller such that the deflecting force of the belt acting in the radial direction acts on the measuring sensor through the material layer of the tensioning roller remaining between the measuring sensor and the outer circumference. As measuring sensors in particular piezoelectric force transmitter, strain gauges or so-called Preßduktoren can be used. Preßduktoren were developed by the company ABB about 1953 and are based on the magnetoelastic effect.

Eine Spannrolle zeichnet sich dadurch aus, daß sie, beispielsweise durch einen motorischen Antrieb, ihre Oberflächenbeschaffenheit und/oder ihre Lagerung, dazu ausgelegt ist, beispielsweise durch Reibungskräfte auf das Band einzuwirken und den über sie geleiteten Bandabschnitt je nach Wirkrichtung zu beschleunigen oder zu verlangsamen.A tension roller is characterized in that it, for example, by a motor drive, their surface texture and / or their storage is designed to act, for example, by frictional forces on the tape and accelerate the guided over them tape section depending on the effective direction or slow down.

Die Meßsensoren können in einer Reihe in Richtung der Spannrollenlängsachse angeordnet sein. Hierdurch wird durch die Meßsensoren der Spannungszustand im Band in der gleichen Bandlängenposition gemessen. Dadurch kann die Planheit des Bandes an dieser Bandlängenposition ermittelt werden. Alternative Anordnungen der Meßsensoren sind beispielsweise eine schraubenlinienförmige Anordnung auf dem Umfang der Spannrolle.The measuring sensors can be arranged in a row in the direction of the tension roller longitudinal axis. As a result, the voltage state in the band in the same band length position is measured by the measuring sensors. As a result, the flatness of the strip at this strip length position can be determined. Alternative arrangements of the measuring sensors are, for example, a helical arrangement on the circumference of the tensioning roller.

Die Spannrolle ist insbesondere bevorzugt beschichtet, besonders bevorzugt mit Gummi oder Polyurethan. Durch die Beschichtung lassen sich Reibkräfte zur Erzeugung des gewünschten Bandzugs besonders gut auf das Band übertragen. Die Beschichtung ist dabei vorzugsweise derart ausgeführt, daß sie auch den Meßsensor überdeckt, also beispielsweise auch einen auf dem Außenumfang der Rolle angeordneten Dehnungsmeßstreifen überdeckt.The tensioning roller is particularly preferably coated, particularly preferably with rubber or polyurethane. Due to the coating, frictional forces for generating the desired strip tension can be transferred particularly well to the strip. The coating is preferably designed such that it also covers the measuring sensor, so for example, also covers a arranged on the outer circumference of the roll strain gauges.

Vorzugsweise weist die Spannrolle einen Durchmesser auf, der sich aus der Beziehung hmax / Drolle < Fließgrenze / E-Modul ergibt, wobei hmax die maximale Dicke des Bands, Drolle der Spannrollendurchmesser, Fließgrenze die Fließgrenzen des Bandmaterials und E-Modul das E-Modul des Bandmaterials ist. Durch diesen großen Rollendurchmesser wird die Einleitung von Bandformfehlern, wie beispielsweise Längs- und Querbogen, in das Band vermieden.Preferably, the tension pulley has a diameter resulting from the relationship h max / roll <yield point / modulus, where h max is the maximum thickness of the strip, D roll is the tension roll diameter, yield point is the yield point of the strip material, and modulus of elasticity is Modulus of elasticity of the strip material is. This large roll diameter avoids the introduction of ribbon form errors, such as longitudinal and transverse bends, into the strip.

Insbesondere zur Gewichtsreduktion kann die Spannrolle als Hohlwelle ausgebildet sein. Durch diese Ausbildung wird ferner der Zugang zu den Meßsensoren vereinfacht.In particular, for weight reduction, the tension roller may be formed as a hollow shaft. This training also simplifies access to the measuring sensors.

Für bevorzugte Anordnungen von Meßsensoren in Meßrollen und Ausbildungen von Meßrollen wird auf DE 42 36 657 C2 , DE 297 21 085 U1 , DE 102 07 501 C2 , DE 18 38 457 A1 , DE 199 18 699 A1 und DE 196 16 980 A1 Bezug genommen, welche Anordnungen von Meßsensoren in Meßrollen und offenbaren, Ausbildungen von MeßrollenFor preferred arrangements of measuring sensors in measuring rollers and training of measuring rollers is on DE 42 36 657 C2 . DE 297 21 085 U1 . DE 102 07 501 C2 . DE 18 38 457 A1 . DE 199 18 699 A1 and DE 196 16 980 A1 Reference is made to arrangements of measuring sensors in measuring rollers and disclose embodiments of measuring rollers

Insbesondere kann ein Meßsensor ein Kraftmeßgeber mit einer Abdeckungen sein, die im Betriebszustand mit ihrer Oberfläche unmittelbar an der Oberfläche des zu prüfenden Bands anliegt. Die Abdeckung ist vorzugweise ohne Wandberührung ausschließlich in einer Ausnehmung, in der der Kraftmeßgeber angeordnet ist, in Richtung auf die Achse der Meßrolle verschiebbar. Die Abdeckung kann von der Umlenkkraft des Bandes beaufschlagt sein, und die beiden einander gegenüberliegenden Stirnflächen des Kraftmeßgebers werden belastet, indem von beiden die eine Stirnfläche auf der Aufstandsfläche der Ausnehmung aufgespannt ist, während die andere der Beauschlagung mit der Umlenkkraft über die Abdeckung ausgesetzt ist.In particular, a measuring sensor may be a force transducer with a cover, which rests in the operating state with its surface directly on the surface of the tape to be tested. The cover is preferably without wall contact exclusively in a recess in which the force transducer is arranged, displaceable in the direction of the axis of the measuring roller. The cover may be acted upon by the deflection force of the belt, and the two opposite end faces of the force transducer are loaded by both of the one end face is clamped on the footprint of the recess, while the other of the Beauschlagung is exposed with the deflection force on the cover.

Vorzugsweise kann die Bandbehandlungsanlage einen Spannrollensatz aufweisen, bei dem die Spannrolle, welche mindestens einen am Umfang der Spannrolle angeordneten Meßsensor aufweist, die dem Behandlungsschritt in Bandlaufrichtung nähere Spannrolle sein. Hierdurch wird die Totzeit verkürzt.Preferably, the belt treatment plant may comprise a tensioning roller set, in which the tensioning roller, which has at least one measuring sensor arranged on the circumference of the tensioning roller, is the tensioning roller closer to the treatment step in the direction of belt travel. As a result, the dead time is shortened.

Bei einer Bandbehandlungsanlage im Sinne der beschriebenen Erfindung handelt es sich um jede denkbare Vorrichtung, welche zum Transport, zur Behandlung, zur Beschichtung oder dergleichen eines durchlaufenden Bandes geeignet ist.A belt treatment plant in the sense of the invention described is any conceivable device which is suitable for transport, for treatment, for coating or the like of a continuous belt.

Bei einer erfindungsgemäßen Bandbehandlungsanlage kann das Band mit einem Umschlingungswinkel von mindestens 180°, insbesondere bevorzugt von 270°, um die Spannrolle geführt werden.In a strip treatment plant according to the invention, the strip can be guided around the tensioning roller with a wrapping angle of at least 180 °, in particular preferably of 270 °.

Erfindungsgemäß kann eine Spannrolle in der Bandbehandlungsanlage zum Messen der Veränderung des Bandzugs vom Einlauf des Bandes auf die Spannrolle zum Auslauf des Bandes von der Spannrolle verwendet werden. Auf diese Weise können Ergebnisse über den Bandzugsaufbau über die Spannrolle ermittelt werden.According to the invention, a tension roller may be used in the belt treatment plant for measuring the change of the strip tension from the inlet of the belt to the tensioning roller for the outfeed of the belt from the tensioning roller. In this way, results can be determined about the strip tension structure via the tension pulley.

Nachfolgend die Erfindung anhand einer lediglich Ausführungsbeispiele darstellenden Zeichnung näher erläutert. Darin zeigt

Fig. 1
den Einsatz einer Spannrolle in einer erfindungsgemäßen Bandbehandlungsanlage zum Streckbiegerichten in einer schematischen Seitenansicht;
Fig. 2
die Anordnung der Kraftmeßgeber-Abdeckung bei einer Spannrolle in einem Querschnitt;
Fig. 3
den Einsatz einer Spannrolle in einer erfindungsgemäßen Bandbehandlungsanlage zum Zugrecken in einer schematischen Seitenansicht und
Fig. 4
den Einsatz einer Spannrolle in einer erfindungsgemäßen Bandbehandlungsanlage zum Streckbiegerichten und Zugrecken in einer schematischen Seitenansicht.
The invention with reference to a purely exemplary embodiments illustrative drawing explained in more detail. It shows
Fig. 1
the use of a tension roller in a strip treatment plant according to the invention for stretch bending in a schematic side view;
Fig. 2
the arrangement of the load cell cover at a tension roller in a cross section;
Fig. 3
the use of a tension roller in a strip treatment plant according to the invention for drawing in a schematic side view and
Fig. 4
the use of a tension roller in a strip treatment plant according to the invention for stretch bending and stretching in a schematic side view.

Die in Fig. 1 dargestellte Bandbehandlungsanlage weist einen Einlaufspanntrommelsatz 1 mit Spannrollen 2,3,4,5 auf. Dem Einlaufspanntrommelsatz in Bandlaufrichtung nachgeordnet ist ein Streckbiegegerüst 6. Dem Streckbiegegerüst 6 in Bandlaufrichtung nachgeordnet ist ein Auslaufspanntrommelsatz 7 mit Spannrollen 8,9,10,11. Die Spannrolle 8 des Auslaufspanntrommelsatzes 7 ist als Spannrolle mit Meßsensoren ausgebildet.In the Fig. 1 shown belt treatment plant has a Einlaufspanntrommelsatz 1 with tension rollers 2,3,4,5. Downstream of the run-in tensioning drum set in the strip running direction is a stretch bending stand 6. The run-length bending stand 6 is followed downstream in the strip running direction by a run-out tensioning drum set 7 with tensioning rollers 8, 9, 10, 11. The tension roller 8 of the Auslaufspanntrommelsatzes 7 is designed as a tension roller with measuring sensors.

Der Bandzug des in die in Fig. 1 dargestellte Bandbehandlungsanlage einlaufenden Bandes wird durch den Einlaufspanntrommelsatz erhöht. Durch das Streckbiegegerüst 6 wird das Band behandelt. Durch den Auslaufspanntrommelsatz 7 wird der Bandzug auf ein für die nachfolgenden Verfahrensschritte festgelegtes Niveau abgesenkt. Durch die als Meßrolle ausgebildete Spannrolle 8 wird die Bandplanheit gemessen. Die Meßergebnisse der Planheitsmessung werden der Regelung des Streckbiegegerüsts 6 zugeführt, um eine vorgegebene Bandplanheit zu erreichen.The Bandzug of the in Fig. 1 shown belt treatment plant incoming belt is increased by the Einlaufspanntrommelsatz. The stretch bender 6 treats the strip. By means of the outlet tensioning drum set 7, the strip tension is lowered to a level determined for the subsequent method steps. By designed as a measuring roller tension roller 8, the band flatness is measured. The measurement results of the flatness measurement are fed to the regulation of the stretch bending stand 6 in order to achieve a predetermined flatness.

Bei der in Fig. 2 dargestellten Anordnung der Kraftmeßgeber-Anordnung besteht ein allseitiger Spalt zwischen Kraftmeßgeber und dessen Abdeckung einerseits und dem Innern der Ausnehmung 22 andererseits. Dieser Spalt liegt vorzugsweise zwischen 0,01 bis 0,05 mm. Es hat sich gezeigt, daß unter diesen Voraussetzungen bei der Spaltbreite keine Beschädigungen oder Markierungen auf der Oberfläche des über die Spannrolle laufenden Bandes bestehen. Das Band 28 läuft über den Rollenkörper 24 und die Meßgeberabdeckung 23. Der Meßgeber 21 ist mit einer seiner Stirnflächen 31 auf der Aufstandsfläche 33 aufgespannt. Seine gegenüberliegende Stirnfläche 32 ist der Beaufschlagung mit der Umlenkkraft F über die Abdeckung 23 ausgesetzt. Die Spannrolle liegt mit ihrer Oberfläche 27 und der Oberfläche 26 der Abdeckung 23 im Betriebszustand unmittelbar an der Oberfläche 29 des zu prüfenden Bandes 28 an. Ein Spalt 45 ist zwischen der Abdeckung 23 und der Innenwand 30 der Ausnehmung 22 vorgesehen.At the in Fig. 2 illustrated arrangement of Kraftmeßgeber arrangement is an all-round gap between the force transducer and its cover on the one hand and the interior of the recess 22 on the other. This gap is preferably between 0.01 to 0.05 mm. It has been found that, under these conditions, there are no damages or marks on the surface of the belt running over the tension roller in the gap width. The belt 28 passes over the roller body 24 and the Meßgeberabdeckung 23. The encoder 21 is clamped with one of its end faces 31 on the contact surface 33. Its opposite end face 32 is subjected to the application of the deflecting force F via the cover 23. The tension roller rests with its surface 27 and the surface 26 of the cover 23 in the operating state directly on the surface 29 of the strip 28 to be tested. A gap 45 is provided between the cover 23 and the inner wall 30 of the recess 22.

Die in Fig. 3 gezeigte Bandbehandlungsanlage unterscheidet sich von der in Fig. 1 gezeigten dadurch, daß zwischen dem Einlaufspanntrommelsatz 1 mit Spannrollen 2,3,4,5 und dem Auslaufspanntrommelsatz 7 mit Spannrollen 8,9,10,11 kein Streckbiegegerüst 6 vorgesehen ist. Die Bandbehandlung erfolgt hier mittels Zugrecken. Hierzu ist im Einlaufspanntrommelsatz ein weiteres Spannrollenpaar 12, 13 und im Auslaufspanntrommelsatz ein weiteres Spannrollenpaar 14, 15 vorgesehen.In the Fig. 3 shown belt treatment plant differs from the in Fig. 1 shown in that between the Einlaufspanntrommelsatz 1 with tension rollers 2,3,4,5 and the Auslaufspanntrommelsatz 7 with tensioners 8,9,10,11 no stretch bender 6 is provided. The band treatment takes place here by means of stretching. For this purpose, another tensioning roller pair 12, 13 and in the outlet tensioning drum set another tensioning roller pair 14, 15 is provided in the inlet tensioning drum set.

In Fig. 4 ist eine kombinierte Behandlung durch Zugrecken und Streckbiegerichten dargestellt.In Fig. 4 is a combined treatment by stretching and stretch bending shown.

Claims (10)

  1. Strip treatment installation comprising a pair of tension rollers, wherein the strip (28) is guided over one tension roller (5) of the pair of tension rollers and the traction exerted on the strip through the tension roller (5) is increased or reduced between the feeding point on the tension roller (5) and the delivery point of the tension roller (5), characterized in that the tension roller (5) has at least one measuring sensor, arranged on the periphery of the tension roller (5), to detect the tension distribution in the strip (28).
  2. Strip treatment installation according to Claim 1, characterized in that a plurality of measuring sensors is arranged in a row toward the tension roller longitudinal axis.
  3. Strip treatment installation according to either of Claims 1 and 2, characterized in that the tension roller (5) is coated.
  4. Strip treatment installation according to any one of Claims 1 to 3, characterized in that the tension roller (5) is a hollow shaft.
  5. Strip treatment installation according to any one of Claims 1 to 4, characterized in that one measuring sensor is a force measurement transmitter (21) with a cover (23), whose surface (26) in the operating state rests directly against the surface (29) of the strip (28) to be measured.
  6. Strip treatment installation according to Claim 5, characterized in that the cover (23) can be displaced without wall contact exclusively within a recess (22), in which the force measurement transmitter (21) is arranged, toward the axis of the measuring roller.
  7. Strip treatment installation according to Claim 5 or 6, characterized in that the cover (23) is impinged by the reversal force of the strip (28) and the two front ends, facing each other, of the force measurement transmitter (21) are loaded, with the one front end being clamped on the contact area (33) of the recess by both, while the other is exposed to the impingement by the reversal force by means of the cover (23).
  8. Strip treatment installation according to any one of Claims 1 to 7, characterized in that that tension roller (5) of the pair of tension rollers, which is nearer to the treatment step, is the tension roller (5), which has at least one measuring sensor, arranged on the periphery of the tension roller (5), to detect the tension distribution in the strip (28).
  9. Strip treatment installation according to any one of Claims 1 to 8, characterized in that the strip (28) is guided at a contact angle of at least 180° around the tension roller (5).
  10. Use of the tension roller (5), which has at least one measuring sensor, arranged on the periphery of the tension roller (5), to detect the tension distribution in the strip (28), in a strip treatment installation according to any one of Claims 1 to 9 for measuring the change of the traction exerted on the strip from the feeding point of the tension roller (5) to the delivery point of the tension roller (5).
EP05778086A 2004-09-03 2005-09-02 Strip treatment installation, and use of a tension roller in a strip treatment installation Active EP1789211B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004043150A DE102004043150A1 (en) 2004-09-03 2004-09-03 Tensioning roller for a belt treatment plant and belt treatment plant and use of the tensioning roller
PCT/EP2005/009461 WO2006027172A1 (en) 2004-09-03 2005-09-02 Tension roller for a strip treatment installation, strip treatment installation, and use of a tension roller

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EP1789211A1 EP1789211A1 (en) 2007-05-30
EP1789211B1 true EP1789211B1 (en) 2008-11-19

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AT (1) ATE414575T1 (en)
DE (2) DE102004043150A1 (en)
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EP4005695A1 (en) 2020-11-30 2022-06-01 VDEh-Betriebsforschungsinstitut GmbH Set of tensioning rollers for straightening a strip, straightening plant, skinpass frame assembly and method for operating a straightening plant

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DE102007006809B4 (en) * 2007-02-07 2009-04-16 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method and apparatus for continuously drawing a metal strip
DE102008038551A1 (en) * 2008-08-20 2010-02-25 Siemens Aktiengesellschaft Method for adjusting a tension of a belt, control and / or regulating device, storage medium, program code for carrying out the method and an industrial system for processing tape
US8707529B2 (en) 2008-12-11 2014-04-29 The Material Works, Ltd. Method and apparatus for breaking scale from sheet metal with recoiler tension and rollers adapted to generate scale breaking wrap angles
DE102016121448B4 (en) 2016-11-09 2018-08-30 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Method and device for stretch bending of a metal strip
DE102018111627A1 (en) 2018-01-23 2019-07-25 Klaus Lenz Stretch-bending straightening system and method for its operation

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DE4236657C2 (en) * 1992-10-30 2002-04-04 Betr Forsch Inst Angew Forsch Deflecting
DE19918699B4 (en) * 1999-04-26 2008-03-27 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Measuring roller for determining flatness deviations
DE19945202A1 (en) * 1999-09-21 2001-03-22 Bfi Vdeh Inst Angewandte Forschung Gmbh Method and device for rolling or winding tape

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Publication number Priority date Publication date Assignee Title
EP4005695A1 (en) 2020-11-30 2022-06-01 VDEh-Betriebsforschungsinstitut GmbH Set of tensioning rollers for straightening a strip, straightening plant, skinpass frame assembly and method for operating a straightening plant
DE102020007286A1 (en) 2020-11-30 2022-06-02 VDEh-Betriebsforschungsinstitut Gesellschaft mit beschränkter Haftung Set of tension rollers for a straightening system for straightening a strip, straightening system, re-rolling stand system and method for operating a straightening system
DE102020007286B4 (en) 2020-11-30 2023-05-04 VDEh-Betriebsforschungsinstitut Gesellschaft mit beschränkter Haftung Set of tension rollers for a straightening system for straightening a strip, straightening system, re-rolling stand system and method for operating a straightening system

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EP1789211A1 (en) 2007-05-30
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DE502005006017D1 (en) 2009-01-02
WO2006027172A1 (en) 2006-03-16

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