EP0005760B1 - Straightening machine for sheets and strips - Google Patents

Straightening machine for sheets and strips Download PDF

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Publication number
EP0005760B1
EP0005760B1 EP79101493A EP79101493A EP0005760B1 EP 0005760 B1 EP0005760 B1 EP 0005760B1 EP 79101493 A EP79101493 A EP 79101493A EP 79101493 A EP79101493 A EP 79101493A EP 0005760 B1 EP0005760 B1 EP 0005760B1
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EP
European Patent Office
Prior art keywords
straightening
rollers
straightening rollers
case
wedges
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Expired
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EP79101493A
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German (de)
French (fr)
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EP0005760A1 (en
Inventor
Hans Malinowski
Klaus-Peter Pielsticker
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SMS Siemag AG
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SMS Schloemann Siemag AG
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Publication of EP0005760A1 publication Critical patent/EP0005760A1/en
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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
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers

Definitions

  • the invention relates to a straightening machine for sheets and strips, with an upper and a lower row of straightening rollers, each supported on a roller mill, and with a plurality of support rollers arranged alongside one another over the length of the straightening rollers, with one straightening roller row in each case successive support rollers of a plurality of straightening rollers are mounted on bearing supports extending transversely to the straightening rollers, which are guided perpendicular to the sheet plane and are supported by displaceable wedges.
  • the upper straightening rollers are mounted on an upper frame, which is connected in a height-adjustable manner by means of driven spindles to vertical bars of the machine frame.
  • the lower straightening rollers are mounted on a subframe, which is pivotally mounted on both sides with curved surfaces on saddles guided between the vertical bars.
  • the saddles are supported on the frame with inclined surfaces on horizontally displaceable wedges.
  • Each of the upper and lower straightening rollers is supported on their bales by several support rollers.
  • the support rollers of several straightening rollers, which are arranged successively in the direction of flow, are each mounted as a set on bearing supports.
  • the bearing brackets are supported individually via adjustable wedges on the upper frame or on the lower frame.
  • each set of support rollers can be adjusted together to adjust the bending of the straightening rollers.
  • the lower straightening rollers can be brought together into the position corresponding to the required straightening gap.
  • this leveler with height-adjustable upper and lower frames requires an elaborate design with long bars.
  • the machine rigidity is very low due to the length of the bars and their connection to the upper frame via spindles.
  • Another disadvantage is that despite complex adjustment devices, a separate adjustment of the straightening gap between. two straightening rolls is not possible and therefore the straightening gap cannot be varied as desired.
  • the prior art also includes a straightening machine, a frame being held on a fixed upper crosshead of a frame by spring-loaded tie rods (US Pat. No. 3,420,082).
  • Wedges are arranged between the crosshead and the frame for vertical adjustment and a swivel saddle for tilting the frame.
  • Straightening rollers are rotatably arranged on the underside of the movable frame by means of bearing housings.
  • support rollers are mounted on bearing supports connected to the movable frame and extending transversely to the roller axes.
  • Wedges are arranged between the movable frame and the bearing supports and can be displaced transversely to the roller axes by adjusting devices.
  • This device is used for bale correction (counter-bending) of the straightening rollers.
  • the lower straightening rollers of the straightening machine are mounted on a base frame by means of bearing housings.
  • support rollers are mounted on bearing supports arranged transversely to the roller axes.
  • the bearing brackets are connected to the outside of the base frame and supported on their underside on immovable wedge pieces.
  • an eccentric shaft driven by a motor is mounted in the base frame, the eccentrics of which raise the bearing supports via the wedge pieces.
  • This known straightening machine with a tiltable and vertically adjustable frame is structurally complex and not stiff and robust enough because of the long stanchions required. Only a common adjustment of the upper straightening rollers arranged on the movable frame is possible, so that a separate adjustment of the straightening gap between individual opposite straightening rollers is not possible
  • the object of the invention is to provide a structurally simpler straightening machine in a more compact and thus stiffer design, in which the straightening rollers can be bent as well as placed against one another under load.
  • a separate adjustment of the straightening gap between individual opposing straightening rollers should be possible.
  • the upper and lower straightening rollers are movably mounted on the upper or lower roller mill connected to a stand cross member and can be adjusted against each other against the force of spring elements, and in the case of the other straightening roller row, the support rollers assigned to each straightening roller each a vertically guided bearing comb extending parallel to the respective straightening roller is mounted, the bearing combs with an inclined underside each being adjustably supported on a longitudinally displaceable wedge aligned parallel to the straightening rollers.
  • the bearings of the straightening rollers are on the rollers spring buffers attached to the chair in the sense of opening the straightening roller set.
  • the straightening rollers are in constant contact with the support rollers, their position and bending contour being determined by the position of the support rollers.
  • the bearings of the straightening rollers can also be accommodated in a guide on the roller mill lying side by side.
  • Both the adjusting wedges arranged transversely to the straightening rollers and the adjusting wedges arranged parallel to the straightening rollers can be displaceable by hydraulic cylinders, the action of which can be regulated individually or together.
  • a further advantage is seen according to the invention in that the support rollers assigned to the individual straightening rollers are mounted on the bearing supports or the bearing combs in such a way that their axes are shifted alternately in and opposite to the direction of travel of the sheet metal from the vertical axis plane of the straightening rollers. As a result, the straightening rollers are guided in a defined manner in the horizontal direction.
  • the frame of the straightening machine shown consists of two stands 1 anchored to the foundation, which are rigidly connected by an upper cross member 2 and a lower cross member 3.
  • An upper roller mill 4 is fastened to the upper cross member 2 and extends into the window openings of the stand 1.
  • Three upper straightening rolls 5 are mounted with their bearings 6 lying against one another vertically movably on the upper roll mill 4 between guides 7, 8 located in the area of the stand window.
  • the bearings 6 of the upper straightening rollers 5 are connected to piston rods of spring buffers 9 attached to the chair 4.
  • Each upper straightening roller 5 is supported on its bale by a plurality of support rollers 10 arranged side by side.
  • the upper roller mill 4 has guides 11 which extend transversely to the straightening rollers 5 and in which transverse wedges 12 are received.
  • Each cross wedge 12 is connected via a coupling 13 to the piston rod of a hydraulic cylinder 14 which is fastened to a support bridge 15.
  • bearing supports 16 are further guided in a vertically movable manner, which bear against the transverse wedges 12 with inclined surfaces.
  • the bearing supports 16 are provided with end plates 17 which are guided on the outer surfaces of the upper roller mill 4.
  • three support rollers 10 of the straightening rollers 5, which follow one another in the direction of flow of the straightening material, are mounted on a bearing bracket 16.
  • the entire upper straightening roller row 5 can be adjusted vertically by moving all cross wedges 12 together.
  • the transverse wedges 12 can be moved into different positions by acting separately on individual hydraulic cylinders 14, so that the upper support rollers 10 form an arcuate system for the upper straightening rollers 5.
  • a lower roller mill 18 is mounted on the lower crossmember 3 and has lateral guides 19, 20 for 4 bearings 21 of lower straightening rollers 22 in the area of the stator openings. Each of the bearings 21 is connected to a spring buffer 23 fastened to the lower roller mill 18 and held non-positively on the roller mill 18.
  • the lower roller mill 18 is provided with guides 24 for longitudinal wedges 25 running parallel to the roller axes.
  • a plurality of hydraulic cylinders 27 are mounted on a bracket 26, the piston rods of which are fastened on the end face to the longitudinal wedges 25 by individual pieces 28 for their individual adjustment.
  • the lower support rollers 30 are pressed against the lower straightening rollers 22, whereby each individual straightening roller 22 against the holding force of the spring buffer 23 in the direction. can be set on the upper straightening rollers 5.
  • the longitudinal wedges 25 are pulled out by the hydraulic cylinders 27, the spring buffers 23 and the force of gravity lower the lower straightening rollers 22 and support rollers 30.
  • the hydraulic cylinders 27 are acted upon separately, the straightening gap between two straightening rollers 5 and 22 can be set independently of the straightening gap between the other straightening rollers will.
  • all of the lower straightening rollers 22 can be adjusted jointly to open the straightening flap.

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

Description

Die Erfindung betrifft eine Richtmaschine für Bleche und Bänder, mit einer oberen und einer unteren, sich jeweils an einem Walzenstuhl abstützenden Richtwalzenreihe und mit mehreren über die Länge der Richtwalzen nebeneinander angeordneten Stützrollen, wobei bei der einen Richtwalzenreihe jeweils in Durchlaufrichtung der Bleche aufeinanderfolgende Stützrollen mehrerer Richtwalzen an sich quer zu den Richtwalzen erstreckenden Lagerträgem gelagert sind, die senkrecht zur Blechebene geführt und durch verschiebbare Keile abgestützt sind.The invention relates to a straightening machine for sheets and strips, with an upper and a lower row of straightening rollers, each supported on a roller mill, and with a plurality of support rollers arranged alongside one another over the length of the straightening rollers, with one straightening roller row in each case successive support rollers of a plurality of straightening rollers are mounted on bearing supports extending transversely to the straightening rollers, which are guided perpendicular to the sheet plane and are supported by displaceable wedges.

Bei einer bekannten Richtmaschine sind die oberen Richtwalzen an einem Oberrahmen gelagert, der durch angetriebene Spindeln mit senkrechten Holmen des Maschinengestells höhenverstellbar verbunden ist. Die unteren Richtwalzen sind an einem Unterrahmen gelagert, der auf beiden Seiten mit bogenförmigen Flächen auf zwischen den vertikalen Holmen geführten Sätteln schwenkbar gelagert ist Die Sättel sind mit geneigten Flächen auf horizontal verschiebbaren Keilen höhenverstellbar im Gestell abgestützt. Jede der oberen und unteren Richtwalzen ist durch mehrere Stützrollen an ihren Ballen abgestützt. Die in Durchlaufrichtung aufeinanderfolgend angeordneten Stützrollen mehrerer Richtwalzen sind jeweils als Satz an Lagerträgern gelagert. Die Lagerträger sind einzeln über verstellbare Keile am Oberrahmen bzw. am Unterrahmen abgestützt Durch gesonderte Höhenverstellung jedes Stützrollensatzes kann die Biegung der Richtwalzen gemeinsam eingestellt werden. Durch geradliniges Heben und Senken bzw. durch Schwenken des Unterrahmens können die unteren Richtwalzen gemeinsam in die dem erforderlichen Richtspalt entsprechende Position gebracht werden.In a known straightening machine, the upper straightening rollers are mounted on an upper frame, which is connected in a height-adjustable manner by means of driven spindles to vertical bars of the machine frame. The lower straightening rollers are mounted on a subframe, which is pivotally mounted on both sides with curved surfaces on saddles guided between the vertical bars. The saddles are supported on the frame with inclined surfaces on horizontally displaceable wedges. Each of the upper and lower straightening rollers is supported on their bales by several support rollers. The support rollers of several straightening rollers, which are arranged successively in the direction of flow, are each mounted as a set on bearing supports. The bearing brackets are supported individually via adjustable wedges on the upper frame or on the lower frame. The height of each set of support rollers can be adjusted together to adjust the bending of the straightening rollers. By lifting and lowering in a straight line or by pivoting the lower frame, the lower straightening rollers can be brought together into the position corresponding to the required straightening gap.

Die Konstruktion dieser Richtmaschine mit höhenverstellbaren oberen und unteren Rahmen bedingt eine aufwendige Bauart mit langen Holmen. Dabei Ist die Maschinensteifigkeit wegen der Länge der Holme und ihrer Verbindung über Spindeln mit dem Oberrahmen sehr gering. Ein weiterer Nachteil ist dass trotz aufwendiger Verstelleinrichtungen eine gesonderte Einstellung des Richtspaltes zwischen. jeweils zwei Richtwalzen nicht möglich ist und daher der Richtspalt nicht beliebig variiert werden kann.The construction of this leveler with height-adjustable upper and lower frames requires an elaborate design with long bars. The machine rigidity is very low due to the length of the bars and their connection to the upper frame via spindles. Another disadvantage is that despite complex adjustment devices, a separate adjustment of the straightening gap between. two straightening rolls is not possible and therefore the straightening gap cannot be varied as desired.

Zum Stand der Technik gehört ferner eine Richtmaschine, wobei an einem festen oberen Querhaupt eines Gestells ein Rahmen durch federbelastete Zugstangen gehalten ist (US-A-3 420 082). Zwischen dem Querhaupt und dem Rahmen sind zur Vertikalverstellung Keile und zum Kippen des Rahmens ein Schwenksattel angeordnet. An der Unterseite des beweglichen Rahmens sind Richtwalzen mittels Lagergehäusen drehbar angeordnet Zur Abstützung der Richtwalzen sind Stützroilen an mit dem beweglichen Rahmen verbundenen, sich quer zu den Rollenachsen erstreckenden Lagerträgem gelagert. Zwischen dem beweglichen Rahmen und den Lagerträgern sind Keile angeordnet, die durch Verstellvorrichtungen quer zu den Rollenachsen verschiebbar sind. Diese Einrichtung dient zur Ballenkorrektur (Gegenbiegung) der Richtwalzen. Die unteren Richtwalzen der Richtmaschine sind mittels Lagergehäusen fest auf einem Grundrahmen gelagert. Zur Abstützung der Richtwalzen sind Stützrollen an quer zu den Rollenachsen angeordneten Lagerträgern gelagert. Die Lagerträger sind aussen mit dem Grundrahmen verbunden und an ihrer Unterseite auf unverschiebbaren Keilstücken abgestützt. Zur Ballenkorrektur der unteren Richtwalzen ist im Grundrahmen eine von einem Motor angetriebene Exzenterwelle gelagert, deren Exzenter über die Keilstücke die Lagerträger anheben.The prior art also includes a straightening machine, a frame being held on a fixed upper crosshead of a frame by spring-loaded tie rods (US Pat. No. 3,420,082). Wedges are arranged between the crosshead and the frame for vertical adjustment and a swivel saddle for tilting the frame. Straightening rollers are rotatably arranged on the underside of the movable frame by means of bearing housings. To support the straightening rollers, support rollers are mounted on bearing supports connected to the movable frame and extending transversely to the roller axes. Wedges are arranged between the movable frame and the bearing supports and can be displaced transversely to the roller axes by adjusting devices. This device is used for bale correction (counter-bending) of the straightening rollers. The lower straightening rollers of the straightening machine are mounted on a base frame by means of bearing housings. To support the straightening rollers, support rollers are mounted on bearing supports arranged transversely to the roller axes. The bearing brackets are connected to the outside of the base frame and supported on their underside on immovable wedge pieces. To correct the bale of the lower straightening rollers, an eccentric shaft driven by a motor is mounted in the base frame, the eccentrics of which raise the bearing supports via the wedge pieces.

Diese bekannte Richtmaschine mit einem kippbaren und vertikal verstellbaren Rahmen ist konstruktiv aufwendig und wegen der erforderlichen langen Ständerholme nicht steif und robust genug. Es ist nur eine gemeinsame Verstellung der oberen am beweglichen Rahmen angeordneten Richtwalzen möglich, so dass eine gesonderte Einstellung des Richtspaltes zwischen einzelnen gegenüberliegenden Richtwalzen nicht möglich istThis known straightening machine with a tiltable and vertically adjustable frame is structurally complex and not stiff and robust enough because of the long stanchions required. Only a common adjustment of the upper straightening rollers arranged on the movable frame is possible, so that a separate adjustment of the straightening gap between individual opposite straightening rollers is not possible

Aufgabe der Erfindung ist die Schaffung einer konstruktiv einfacheren Richtmaschine in kompakterer und damit steiferer Bauweise, bei der die Richtwalzen unter Last sowohl gebogen als auch gegeneinander angestellt werden können. Zusätzlich soll eine gesonderte Einstellung des Richtspaltes zwischen einzelnen gegenüberliegenden Richtwalzen möglich sein.The object of the invention is to provide a structurally simpler straightening machine in a more compact and thus stiffer design, in which the straightening rollers can be bent as well as placed against one another under load. In addition, a separate adjustment of the straightening gap between individual opposing straightening rollers should be possible.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die oberen und unteren Richtwalzen an dem mit einer Ständertraverse verbundenen oberen bzw. unteren Walzenstuhl beweglich gelagert und gegen die Kraft von Federelementen gegeneinander anstellbar sind, und dass bei der anderen Richtwalzenreihe die jeweils einzelnen Richtwalzen zugeordnete Stützrollen an je einem sich parallel zu der jeweiligen Richtwalze erstrekkenden vertikal geführten Lagerkamm gelagert sind, wobei die Lagerkämme mit geneigter Unterseite jeweils auf je einem parallel zu den Richtwalzen ausgerichteten, längsverschiebbaren Keil verstellbar abgestützt sind.This object is achieved according to the invention in that the upper and lower straightening rollers are movably mounted on the upper or lower roller mill connected to a stand cross member and can be adjusted against each other against the force of spring elements, and in the case of the other straightening roller row, the support rollers assigned to each straightening roller each a vertically guided bearing comb extending parallel to the respective straightening roller is mounted, the bearing combs with an inclined underside each being adjustably supported on a longitudinally displaceable wedge aligned parallel to the straightening rollers.

Auf diese Weise wird mit einfachen betriebssicheren Verstelleinrichtungen eine vielfältige Möglichkeit zur Verstellung gegen den Richtdruck und zur Biegung der Richtwalzen geschaffen.In this way, simple, reliable adjustment devices create a diverse possibility for adjustment against the straightening pressure and for bending the straightening rollers.

Darüber hinaus wird bei einer Richtwalzenreihe die Einstellung des Richtspaltes zwischen einzelnen gegenüberliegenden Richtwalzen ermöglicht. Aufwendige Verstelleinrichtungen wie Spindeln und Schwenksättel werden eingespart. Dadurch wird die Bauhöhe der Richtmaschine verringert und die Maschinensteifigkeit wesentlich verbessert.In addition, in the case of a straightening roller row, the adjustment of the straightening gap between individual opposite straightening rollers is made possible. Elaborate adjustment devices such as spindles and swivel saddles are saved. This reduces the height of the straightening machine and significantly improves machine rigidity.

Gemäss einem weiteren Merkmal der Erfindung sind die Lager der Richtwalzen durch am Walzenstuhl angebrachte Federpuffer im Sinne einer Öffnung des Richtwalzensatzes gehalten. Dadurch sind die Richtwalzen in ständiger Anlage an den Stützrollen, wobei ihre Position und Biegekontur durch die Position der Stützrollen bestimmt ist.According to a further feature of the invention, the bearings of the straightening rollers are on the rollers spring buffers attached to the chair in the sense of opening the straightening roller set. As a result, the straightening rollers are in constant contact with the support rollers, their position and bending contour being determined by the position of the support rollers.

Die Lager der Richtwalzen können weiterhin in einer Führung am Walzenstuhl nebeneinanderliegend aufgenommen sein.The bearings of the straightening rollers can also be accommodated in a guide on the roller mill lying side by side.

Sowohl die quer zu den Richtwalzen angeordneten als auch die parallel zu den Richtwalzen angeordneten Verstellkeile können durch Hydraulikzylinder verschiebbar sein, deren Beaufschlagung einzeln oder gemeinsam regelbar ist.Both the adjusting wedges arranged transversely to the straightening rollers and the adjusting wedges arranged parallel to the straightening rollers can be displaceable by hydraulic cylinders, the action of which can be regulated individually or together.

Ein weiterer Vorteil wird nach der Erfindung darin gesehen, dass die den einzelnen Richtwalzen zugeordneten Stützrollen derart an den Lagerstützen bzw. den Lagerkämmen gelagert sind, dass ihre Achsen abwechselnd in und entgegengesetzt zur Durchlaufrichtung des Bleches aus der vertikalen Achsebene der Richtwalzen verlagert sind. Dadurch werden die Richtwalzen in horizontaler Richtung definiert geführt.A further advantage is seen according to the invention in that the support rollers assigned to the individual straightening rollers are mounted on the bearing supports or the bearing combs in such a way that their axes are shifted alternately in and opposite to the direction of travel of the sheet metal from the vertical axis plane of the straightening rollers. As a result, the straightening rollers are guided in a defined manner in the horizontal direction.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:

  • Fig. 1 den Querschnitt einer Waizenrichtmaschine und
  • Fig. 2 einen Längsschnitt gemäss der Linie 11-11 in Fig. 1.
In the drawing, an embodiment of the invention is shown. Show it:
  • Fig. 1 shows the cross section of a waizen leveling machine and
  • FIG. 2 shows a longitudinal section along the line 11-11 in FIG. 1.

Das Gestell der dargestellten Richtmaschine besteht aus zwei am Fundament verankerten Ständern 1, die durch eine obere Traverse 2 und eine untere Traverse 3 starr verbunden sind. Ein oberer Walzenstuhl 4 ist an der oberen Traverse 2 befestigt und erstreckt sich bis in die Fensteröffnungen der Ständer 1. Drei obere Richtwalzen 5 sind mit ihren Lagern 6 aneinanderliegend zwischen im Bereich der Ständerfenster befindlichen Führungen 7, 8 am oberen Walzenstuhl 4 vertikal beweglich gelagert. Die Lager 6 der oberen Richtwalzen 5 sind mit Kolbenstangen von am Waizenstuhl 4 befestigten Federpuffern 9 verbunden. Jede obere Richtwalze 5 ist durch mehrere nebeneinander angeordnete Stützrollen 10 an ihrem Ballen abgestützt.The frame of the straightening machine shown consists of two stands 1 anchored to the foundation, which are rigidly connected by an upper cross member 2 and a lower cross member 3. An upper roller mill 4 is fastened to the upper cross member 2 and extends into the window openings of the stand 1. Three upper straightening rolls 5 are mounted with their bearings 6 lying against one another vertically movably on the upper roll mill 4 between guides 7, 8 located in the area of the stand window. The bearings 6 of the upper straightening rollers 5 are connected to piston rods of spring buffers 9 attached to the chair 4. Each upper straightening roller 5 is supported on its bale by a plurality of support rollers 10 arranged side by side.

Der obere Walzenstuhl 4 weist sich quer zu den Richtwalzen 5 erstreckende Führungen 11 auf, in denen Querkeile 12 aufgenommen sind. Jeder Querkeil 12 ist über eine Kupplung 13 mit der Kolbenstange eines Hydraulikzylinders 14 verbunden, der an einer Stützbrücke 15 befestigt ist. In den Führungsöffnungen 11 sind weiter Lagerträger 16 vertikal beweglich geführt, die mit geneigten Oberflächen an den Querkeilen 12 anliegen. Die Lagerträger 16 sind mit Stirnplatten 17 versehen, die an den Aussenflächen des oberen Walzenstuhles 4 geführt sind. Jeweils drei in Durchlaufrichtung des Richtgutes aufeinanderfolgende Stützrollen 10 der Richtwalzen 5 sind an einem Lagerträger 16 gelagert.The upper roller mill 4 has guides 11 which extend transversely to the straightening rollers 5 and in which transverse wedges 12 are received. Each cross wedge 12 is connected via a coupling 13 to the piston rod of a hydraulic cylinder 14 which is fastened to a support bridge 15. In the guide openings 11, bearing supports 16 are further guided in a vertically movable manner, which bear against the transverse wedges 12 with inclined surfaces. The bearing supports 16 are provided with end plates 17 which are guided on the outer surfaces of the upper roller mill 4. In each case three support rollers 10 of the straightening rollers 5, which follow one another in the direction of flow of the straightening material, are mounted on a bearing bracket 16.

Die Federpuffer 9 bewirken über die Richtwalzen 5 und die Stützrollen 10 eine ständige Anlage der Lagerträger 16 an den Querkeilen 12. Hierfür können aber auch besonders Haltemittel am oberen Walzenstuhl 4 angeordnet sein.The spring buffers 9, via the straightening rollers 5 and the support rollers 10, ensure that the bearing supports 16 are in constant contact with the transverse wedges 12.

Die gesamte obere Richtwalzenreihe 5 kann durch gemeinsame Verschiebung aller Querkeile 12 vertikal verstellt werden. Zur Erzielung einer Biegung der oberen Richtwalzen 5 können die Querkeile 12 durch separate Beaufschlagung einzelner Hydraulikzylinder 14 in unterschiedliche Positionen gefahren werden, so dass die oberen Stützrollen 10 eine bogenförmig verlaufende Anlage für die oberen Richtwalzen 5 bilden.The entire upper straightening roller row 5 can be adjusted vertically by moving all cross wedges 12 together. To achieve a bend in the upper straightening rollers 5, the transverse wedges 12 can be moved into different positions by acting separately on individual hydraulic cylinders 14, so that the upper support rollers 10 form an arcuate system for the upper straightening rollers 5.

Ein unterer-Walzenstuhl 18 ist auf der unteren Traverse 3 gelagert und weist im Bereich der Ständeröffnungen seitliche Führungen 19, 20 für jeweils 4 Lager 21 von unteren Richtwalzen 22 auf. Jedes der Lager 21 ist mit einem am unteren Walzenstuhl 18 befestigten Federpuffer 23 verbunden und kraftschlüssig am Walzenstuhl 18 gehalten. Der untere Walzenstuhl 18 ist mit parallel zu den Walzenachsen verlaufenden Führungen 24 für Längskeile 25 versehen. Auf einer Konsole 26 sind mehrere Hydraulikzylinder 27 gelagert, deren Kolbenstangen über Gelenkstücke 28 stirnseitig an den Längskeilen 25 zu deren Einzelverstellung befestigt sind. Auf den geneigten Flächen der Längskeile 25 liegen Lagerkämme 29 mit geneigter Unterseite auf, an denen untere Stützrollen 30 für je eine untere Richtwalze 22 gelagert sind.A lower roller mill 18 is mounted on the lower crossmember 3 and has lateral guides 19, 20 for 4 bearings 21 of lower straightening rollers 22 in the area of the stator openings. Each of the bearings 21 is connected to a spring buffer 23 fastened to the lower roller mill 18 and held non-positively on the roller mill 18. The lower roller mill 18 is provided with guides 24 for longitudinal wedges 25 running parallel to the roller axes. A plurality of hydraulic cylinders 27 are mounted on a bracket 26, the piston rods of which are fastened on the end face to the longitudinal wedges 25 by individual pieces 28 for their individual adjustment. On the inclined surfaces of the longitudinal wedges 25 there are bearing combs 29 with an inclined underside, on which lower support rollers 30 for a lower straightening roller 22 are each mounted.

Durch Einschieben der Längskeile 25 werden die unteren Stützrollen 30 gegen die unteren Richtwalzen 22 gepresst, wodurch jede einzelne Richtwalze 22 gegen die Haltekraft der Federpuffer 23 in Richtung. auf die oberen Richtwalzen 5 angestellt werden kann. Beim Herausziehen der Längskeile 25 durch die Hydraulikzylinder 27 bewirken die Federpuffer 23 und die Schwerkraft das Absenken der unteren Richtwalzen 22 und Stützrollen 30. Bei separater Beaufschlagung der Hydraulikzylinder 27 kann der Richtspalt zwischen jeweils zwei Richtwalzen 5 und 22 unabhängig vom Richtspalt zwischen den übrigen Richtwalzen eingestellt werden. Durch gemeinsame Beaufschlagung der Hydraulikzylinder 27 können alle unteren Richtwalzen 22 zur Öffnung des Richtspattes gemeinsam verstellt werden.By inserting the longitudinal wedges 25, the lower support rollers 30 are pressed against the lower straightening rollers 22, whereby each individual straightening roller 22 against the holding force of the spring buffer 23 in the direction. can be set on the upper straightening rollers 5. When the longitudinal wedges 25 are pulled out by the hydraulic cylinders 27, the spring buffers 23 and the force of gravity lower the lower straightening rollers 22 and support rollers 30. When the hydraulic cylinders 27 are acted upon separately, the straightening gap between two straightening rollers 5 and 22 can be set independently of the straightening gap between the other straightening rollers will. By acting on the hydraulic cylinders 27 together, all of the lower straightening rollers 22 can be adjusted jointly to open the straightening flap.

Claims (5)

1. Astraightening machine for metal sheets and strips, comprising an upper and a lower series of straightening rollers supported in each case on a roller frame (4, 18) and a plurality of back-up rollers (10, 30) arranged side by side along the length of the straightening rollers (5, 22) and in which, in the case of one series of straightening rollers, back-up rollers (10) associated with a plurality of straightening rollers (5) and following in succession in each case in the direction of travel of the metal sheets are mounted on bearing supports (16), which extend transversely to the straightening rollers (5), are directed at right angles to the plane of the metal sheets and which are supported by displaceable wedges (12), characterized in that the upper and lower straightening rollers (5, 22) are movably mounted on the upper or lower roller frame (4, 18) rigidly connected to a stand cross-member (2 or 3 respectively) and are adjustable relative to one another against the force of spring elements (9 or 23 respectively) associated with their bearings (6 or 21 respectively), and, in the case of the other series of straightening rollers, the back-up rollers (30) associated in each case with individual straightening rollers (22) are mounted on a respective vertically guided support cam (29) extending parallel to the respective straightening roller (22), the support cams (29) having inclined undersides which are adjustably supported in each case on a longitudinally displaceable wedge (25) orientated parallel to the straightening rollers (22).
2. A straightening machine according to claim 1, characterized in, that the bearings (6, 21) of the straightening rollers (5, 22) are held by spring buffers (9, 23) disposed on the roller frame (4 or 18 respectively) in such a way as to open the set of straightening rollers.
3. A straightening machine according to claim 1 or 2, characterized in, that the bearings (6, 21) of the straightening rollers (5, 22) are held side by side in a guide (7, 8 or 19, 20 respectively) on the roller frame (4 or 8 respectively).
4. A straightening machine according to any one of claims 1 to 3, characterized in, that both the wedges (12) disposed transversely to the straightening rollers (5) and the wedges (25) disposed parallel to the straightening rollers (22) are displaceable by hydraulic cylinders (14 or 27 respectively), the pressurisation of which may be controlled individually or jointly.
5. A straightening machine according to any one of claims 1 to 4, characterized in, that the back-up rollers (10, 30) associated with the individual straightening rollers (5, 22) are mounted on the bearing supports (16) or the support cams (29) respectively in such a way that their axes are offset alternately in the direction of travel of the metal sheets and opposite thereto from the vertical axial plane of the straightening rollers (5, 22).
EP79101493A 1978-06-02 1979-05-16 Straightening machine for sheets and strips Expired EP0005760B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782824217 DE2824217A1 (en) 1978-06-02 1978-06-02 LEVELING MACHINE FOR PLATES AND STRAPS
DE2824217 1978-06-02

Publications (2)

Publication Number Publication Date
EP0005760A1 EP0005760A1 (en) 1979-12-12
EP0005760B1 true EP0005760B1 (en) 1982-10-20

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EP79101493A Expired EP0005760B1 (en) 1978-06-02 1979-05-16 Straightening machine for sheets and strips

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US (1) US4313322A (en)
EP (1) EP0005760B1 (en)
JP (1) JPS54163769A (en)
CA (1) CA1126143A (en)
DE (2) DE2824217A1 (en)

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Also Published As

Publication number Publication date
DE2963877D1 (en) 1982-11-25
US4313322A (en) 1982-02-02
JPS5641323B2 (en) 1981-09-28
EP0005760A1 (en) 1979-12-12
DE2824217A1 (en) 1979-12-06
CA1126143A (en) 1982-06-22
JPS54163769A (en) 1979-12-26

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