EP0732160B1 - Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre - Google Patents

Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre Download PDF

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Publication number
EP0732160B1
EP0732160B1 EP95118599A EP95118599A EP0732160B1 EP 0732160 B1 EP0732160 B1 EP 0732160B1 EP 95118599 A EP95118599 A EP 95118599A EP 95118599 A EP95118599 A EP 95118599A EP 0732160 B1 EP0732160 B1 EP 0732160B1
Authority
EP
European Patent Office
Prior art keywords
straightening
strip
rolls
tension
measuring device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95118599A
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German (de)
English (en)
Other versions
EP0732160A3 (fr
EP0732160A2 (fr
Inventor
Oskar Dipl.-Ing. Noé
Andreas Dr. mont. Dipl.-Ing. Noé
Rolf Dipl.-Ing Noé
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BWG Bergwerk und Walzwerk Maschinenbau GmbH
Original Assignee
BWG Bergwerk und Walzwerk Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BWG Bergwerk und Walzwerk Maschinenbau GmbH filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH
Priority to EP98112117A priority Critical patent/EP0867241B1/fr
Publication of EP0732160A2 publication Critical patent/EP0732160A2/fr
Publication of EP0732160A3 publication Critical patent/EP0732160A3/fr
Application granted granted Critical
Publication of EP0732160B1 publication Critical patent/EP0732160B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the invention relates to a method for continuous Straightening thin metal strips, especially of Aluminum and stainless steel strips with strip thicknesses of 0.1 mm up to 0.5 mm, in a belt process line, after which belt unevenness and / or the band profile measured before straightening and then depending on the measured values determined at least one directional parameter is regulated in advance.
  • an actual value transmitter in front of a tensioner roller set on the inlet side for the amplitudes of bandwaves of the continuous Metal tape arranged. From the determined wave amplitude is connected in a to the actual value transmitter Calculator the minimum stretch size required for this amplitude calculated and as the setpoint of a control device for the one about the band tension between the two Tensioner roller sets supplied controllable degree of stretch. Consequently, in the known method, only the tape tension or degree of stretch as a guiding parameter. In addition is on after a tensioning roller set on the outlet side a controller for a straightening roller actuator connected Actual value generator arranged.
  • the rolled metal strip is in a Zigzag line using tension continuously via processing tools such as straightening rollers or the like performed and thereby in the longitudinal direction Bending and subjected to plastic stretching.
  • the plastic stretching is 2 to 10%
  • the metal band at the same time as the bend in its longitudinal direction in is bent in its transverse direction.
  • a thickness measuring device is provided, which delivers its measured values to a control device, which in turn generates control signals by means of a straightening machine the aforementioned in the processing line perform plastic stretching (see. DE-C-33 23 623).
  • a set of rollers for the S-shaped deflection is also closed leveling metal belts with at least two pulleys known. At least the roller jacket is one of the two pulleys between a convex External curvature and a concave inner curvature adjustable. In this way you tried, in the course of leveling of metal bands edge waves or center bowls in considerable Reduce dimensions or eliminate them entirely (see DE-C-42 30 243).
  • the invention is based on the technical problem Processes of the type described at the beginning so on form that the metal strips properly and continuously be addressed, taking into account limited Values for the target parameters.
  • the object of the invention is to achieve this object a first alternative is a process for continuous Straightening thin metal strips, especially of Aluminum and stainless steel strips with strip thicknesses of 0.1 mm up to 0.5 mm, in a belt process line, after which belt unevenness and / or the band profile measured before straightening are then, depending on the determined Measured values are pre-regulated at least one standard parameter, and according to which the degree of stretch and the in or Bulge of a correction roll taking into account stored reference values for different metal strips in the course of a train stretch to achieve optimal Setting values are continuously pre-adjusted.
  • a method for continuous straightening of thin metal strips, in particular of aluminum and stainless steel strips with strip thicknesses from 0.1 mm to 0.5 mm in a belt process line proposed after which band unevenness and / or the band profile be measured before straightening, after which further dependent at least one of the measured values determined Straightening parameters is regulated in advance, and then as guiding parameters the belt tension, the immersion depth and the deflection stored by stretch bending rolls taking into account Guide values for different metal strips in the In the course of a stretch bending straightening to achieve optimal setting values are continuously regulated in advance.
  • the invention is based on the knowledge that the judging result essentially of influencing factors, such as the Strip flatness and the strip profile, depending on the leveling is. If these influencing factors are determined, the Straightening process by varying strip tension, degree of stretch, concave bulge or convex bulge of an as Correction roller used in tension stretching and due to the immersion depth and the deflection of stretch bending rollers be optimized during stretch bending straightening. In this Context is also important that the Degree of stretch can be minimized to the material properties of the metal strip in question as low as possible influence and still get the same judgment result.
  • the optimal guideline values once in a test field with subsequent off-line flatness measurement and then save.
  • aluminum coils used in the Rule on the outside diameter of the center bowls and on the inside diameter Have edge waves over the entire Coil length can be optimally directed.
  • the second influencing variable, the band profile can be carried out online a traversing thickness gauge can be measured.
  • the Setting values of the corresponding straightening system can also be optimized, but the influence of the Belt profile during the straightening process not as large as that of band unevenness. But for that it is important that Adjust the tape tension on the rewinder depending on the tape profile. For example, a band profile with a large one Excessive thickness in the area of the strip center after straightening in the wound coil due to and from compressive stresses resulting crawls to center bowls. Hence the flatness is negatively influenced after straightening and is often lost.
  • the deflection of the stretch bending rollers may be realized in this way be like this basically in the German patent specification 33 23 623 is described. This is done in particular with View of the figures 13 and 14 there a deflection with the help of hydraulic cylinders or by split Pinch rollers as pressure elements.
  • the measuring device for the distance measurement can be designed as a shapemeter roll or as a laser beam measuring device with measuring beams arranged perpendicular to the metal strip passing through and across its bandwidth in a predetermined distribution.
  • the entire measuring station is preferably in an area of low strip tension and consequently in front of the brake roller set in order to obtain significant measured values.
  • Low strip tension means a range of ⁇ 15 N / mm 2 for aluminum strips and ⁇ 50 N / mm 2 for stainless steel strips.
  • the measuring station can also have a strip thickness measuring device that traverses the bandwidth. In such a case, this strip thickness measuring device is also connected to the control device, which in turn regulates the unwinder in order to achieve optimum strip tension.
  • the straightening system shown is used for straightening thin ones Metal strips 1, in particular aluminum strips and Stainless steel strips with strip thicknesses from 0.1 mm to 0.5 mm.
  • This straightening system has a pull roller set 2 and one Brake roller set 3 on.
  • the brake roller set 3 is a measuring station 4 with at least one measuring device 5 for distance measurement perpendicular to the relevant metal strip 1 and above the bandwidth precedes.
  • Between the brake roller set 3 and the tension roller set 2 is a stretch roller set 6 with a brake roller 7 and a tension or correction roller 8 with concave and convex adjustable crown.
  • the stretch bending device 11 has stretch bending rollers 12.
  • To the Pull roller set 2 is followed by a rewinder 13.
  • To the Measuring device 5 is a control device 14 for at least the Stretching roller set 6, which is adjustable in terms of crowning Tension or correction roller 8, the tension measuring roller 10 and the stretch bending rollers 12 connected.
  • band unevenness can be continuously measure and the measurement results in real time to the Pass on control device 14 so that by way of a Advance regulation always an optimal setting of the Straightening parameters and consequently the straightening units is guaranteed so that a continuous Tape error correction is achieved online. Furthermore, an optimal adjustment of the tape tension before Rewinder 13 reach, namely when the measuring station 4 a Belt thickness measuring device traversing the bandwidth has and directly over the rewinder 13 of the tape tension is regulated ahead of the rewinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Claims (6)

  1. Procédé de dressage en continu de bandes métalliques minces (1), en particulier de bandes d'aluminium et d'acier fin de 0,1 mm à 0,5 mm d'épaisseur, sur une ligne de traitement de bande, procédé dans lequel
    les défauts de planéité de bande et/ou le profil de bande sont mesurés avant le dressage, dans lequel de plus
    au moins un paramètre de dressage est préréglé en fonction des valeurs mesurées recueillies, et dans lequel,
    comme paramètres de dressage, le taux d'allongement et la concavité ou la convexité d'un cylindre correcteur (8) sont préréglés en continu en tenant compte de valeurs de dressage mémorisées pour diverses bandes métalliques (1), au cours d'un étirage par traction pour obtenir des valeurs de réglage optimales.
  2. Procédé de dressage en continu de bandes métalliques minces (1), en particulier de bandes d'aluminium et d'acier fin de 0,1 mm à 0,5 mm d'épaisseur, sur une ligne de traitement de bande, procédé dans lequel
    les défauts de planéité de bande et/ou le profil de bande sont mesurés avant le dressage, dans lequel de plus
    au moins un paramètre de dressage est préréglé en fonction des valeurs mesurées recueillies, et dans lequel,
    comme paramètres de dressage, la tension de bande, la profondeur de pénétration et la flèche de cylindres de traction et de flexion (12) sont préréglées en continu en tenant compte de valeurs de dressage mémorisées pour diverses bandes métalliques (1), au cours d'un dressage par traction et par flexion pour obtenir des valeurs de réglage optimales.
  3. Installation de dressage pour la mise en oeuvre du procédé selon la revendication 1 ou 2, avec au moins un train de cylindres de traction (2) et un train de cylindres de freinage (3), dans laquelle
    le train de cylindres de freinage (3) est précédé d'une station de mesure (4) avec au moins un appareil de mesure (5) pour mesurer la distance perpendiculairement à la bande métallique concernée (1) et sur la largeur de celle-ci, dans laquelle en outre
    l'appareil de mesure (5) est connecté à un dispositif de réglage (14), dans laquelle de plus
    entre le train de cylindres de freinage (3) et le train de cylindres de traction (2) sont disposés
    a) un train de cylindres d'allongement (6) avec un cylindre de freinage (7) et un cylindre de traction (8) tenant lieu de cylindre correcteur (8) à bombés concave et convexe réglables, et
    b) un dispositif de traction et flexion (11), et dans laquelle
    le dispositif de réglage (14) est agencé pour régler les paramètres de dressage à l'aide d'au moins le train de cylindres d'allongement (6), le cylindre correcteur à bombé réglable (8) et les cylindres de traction et flexion (12) du dispositif de traction et flexion (11) en tenant compte
    c) de valeurs de dressage mémorisées pour diverses bandes métalliques (1) et
    d) des résultats de mesure enregistrés au moyen de l'appareil de mesure (5) et transmis en temps réel au dispositif de réglage (14).
  4. Installation de dressage selon la revendication 3, caractérisée en ce que l'appareil de mesure (5) pour mesurer la distance est conçu sous la forme d'un rouleau palpeur (Shapemeter) ou sous la forme d'un appareil de mesure à faisceau laser avec des faisceaux de mesure orientés perpendiculairement à la bande métallique continue (1) et répartis de manière définie sur la largeur de celle-ci.
  5. Installation de dressage selon la revendication 3 ou 4, caractérisée en ce que la station de mesure (4) est disposée dans une zone à faible tension de bande.
  6. Installation de dressage selon la revendication 3 à 5, caractérisée en ce que la station de mesure (4) comporte un appareil de mesure d'épaisseur de bande qui occupe la largeur de la bande et qui est connecté au dispositif de réglage (14) pour régler l'enrouleur (13) ou, respectivement, la tension de bande juste avant l'enrouleur.
EP95118599A 1995-03-14 1995-11-25 Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre Expired - Lifetime EP0732160B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP98112117A EP0867241B1 (fr) 1995-03-14 1995-11-25 Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19509067 1995-03-14
DE19509067A DE19509067A1 (de) 1995-03-14 1995-03-14 Verfahren zum kontinuierlichen Richten von dünnen Metallbändern, insbesondere von Aluminium- und Edelstahl-Bändern mit Banddicken von 0,1 mm bis 0,5 mm, und Richtanlage zur Durchführung des Verfahrens

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP98112117A Division EP0867241B1 (fr) 1995-03-14 1995-11-25 Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre

Publications (3)

Publication Number Publication Date
EP0732160A2 EP0732160A2 (fr) 1996-09-18
EP0732160A3 EP0732160A3 (fr) 1997-08-20
EP0732160B1 true EP0732160B1 (fr) 2001-08-16

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Application Number Title Priority Date Filing Date
EP95118599A Expired - Lifetime EP0732160B1 (fr) 1995-03-14 1995-11-25 Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre
EP98112117A Expired - Lifetime EP0867241B1 (fr) 1995-03-14 1995-11-25 Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre

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EP98112117A Expired - Lifetime EP0867241B1 (fr) 1995-03-14 1995-11-25 Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre

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US (3) US5704237A (fr)
EP (2) EP0732160B1 (fr)
DE (3) DE19509067A1 (fr)

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Also Published As

Publication number Publication date
EP0867241B1 (fr) 2003-04-02
DE59509514D1 (de) 2001-09-20
US5704237A (en) 1998-01-06
DE59510627D1 (de) 2003-05-08
EP0867241A2 (fr) 1998-09-30
US5829287A (en) 1998-11-03
US5829286A (en) 1998-11-03
EP0867241A3 (fr) 1998-10-21
EP0732160A3 (fr) 1997-08-20
EP0732160A2 (fr) 1996-09-18
DE19509067A1 (de) 1996-09-19

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