EP0388708B1 - Strip accumulator for the continuous operation of rolling lines - Google Patents

Strip accumulator for the continuous operation of rolling lines Download PDF

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Publication number
EP0388708B1
EP0388708B1 EP90104331A EP90104331A EP0388708B1 EP 0388708 B1 EP0388708 B1 EP 0388708B1 EP 90104331 A EP90104331 A EP 90104331A EP 90104331 A EP90104331 A EP 90104331A EP 0388708 B1 EP0388708 B1 EP 0388708B1
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EP
European Patent Office
Prior art keywords
strip
drum
support
carriage
loop
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
EP90104331A
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German (de)
French (fr)
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EP0388708A1 (en
Inventor
Klaus Klamma
Withold Richert
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SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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Publication of EP0388708A1 publication Critical patent/EP0388708A1/en
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    • 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
    • B21C49/00—Devices for temporarily accumulating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters

Definitions

  • the invention relates to a strip storage for a continuous operation of rolling mills, in particular a loop-forming strip storage for sheet metal strips in strip processing systems, consisting of a sling carriage that can be moved on guides in the sense of a sling change with at least one deflection roller for a sling and with the sling carriage by tension members such as ropes, chains or The like connected, with at least one support roller for the tape also movable on guides, as well as with at least one feed roller and a discharge roller for the tape.
  • Strip storage for rolled strips is required in order to be able to operate the rolling stands in rolling mills continuously, even if individual bundles which have to be connected to one another before being introduced into the rolling stand are to be fed to the rolling mill or rolling stand and rolled by the latter.
  • a loop storage device and a loop former of some form must be provided which have a capacity is designed in such a way that the strip can also be fed continuously to the roll stand or rolling mill when the individual bundles are prepared or welded to one another.
  • pickling plants or annealing furnaces that are operated continuously and in which the different incoming strip speeds have to be compensated for.
  • sling towers sling pits or horizontal sling pullers are used.
  • Horizontal loop pullers or horizontally arranged tape storage devices are known from the prior art, in particular from DE-OS 1 953 169, AT-PS 299 103 and from European patent application 0 110 864.
  • the horizontal loop puller according to DE-OS 1 953 169 for tape processing systems with loop carriage and idlers is characterized in that the idlers are mounted in several so-called followers that are movable in the horizontal direction.
  • the ropes connecting the trailer and the sling carriage are wound on rope drums and are kept constantly tensioned by the drive of the rope drums. Since the sling carriage pushes the follower in front of it in the sense of shortening the storage sling, the restoring force via the cable drum drives only has the task of keeping the connecting cables taut so that the following sliders are only moved by the loop carriage when the rope length between the sling wagon and the following successor is used up. If the cable drum is driven by a spring drum, the springs only have a short service life of a few months. Is the cable drum driven? electrical, each motor must have its own control and its own energy supply. Both are disadvantageous.
  • the horizontal strip store for sheet metal strips according to AT-PS 299 103 contains a movable loop carriage, which can preferably be driven with a constant torque in the sense of an enlarged loop, and several support carriages which can be moved along guide rails.
  • An endless rope, which is guided around pulleys, is connected to the sling carriage and the support carriage. From this rope, the drive for the support car is derived via take-off rollers with the interposition of reduction gears in such a way that the support cars are at the same distance from one another when the sling car moves.
  • a particular disadvantage of this tape storage device can be seen in the fact that a different transmission ratio is necessary for each carriage and that a high risk of contamination of the drive pinion and the rack does not lead to exact drive and transmission ratios.
  • the horizontal belt store according to EP-OS 0 110 864 also shows a movable loop carriage to which individual support carriages are coupled with the aid of flexible tension members which can be pulled out against a restoring force.
  • These tension members should be elastically stretchable at least in some areas. They are designed, for example, as rubber ropes or the like and are looped around deflection rollers. This training is intended to effect a bumpless drive of the support car from the loop car while maintaining a uniform distance between the individual support cars.
  • a disadvantage of this band storage device is that the flexible or elastic rubber ropes age relatively quickly and become brittle and therefore wear out uncontrollably and at different speeds can and that rubber ropes in the rough rolling mill environment can be easily damaged, so that there is also a risk of tearing the rubber ropes.
  • the tape storage of the type mentioned is characterized by a arranged at least on each support carriage with a torque resistor cooperating cam drum, on the drum shell as a tension member runs a traction rope, the torque resistor is a torque motor with constant torque.
  • the advantages of the band storage device according to the invention are that both when filling and when emptying the storage device, the sheet metal strip is carried optimally and continuously by support rollers of the support car, that no jolting load is transferred to the support car when moving the sling car, and that the use of heavy-duty steel cables is the arrangement of the cam drum and the preferred use of a torque motor lead to a very high reliability of the system.
  • the torque motor can be designed to be relatively small, since it only has to overcome the frictional moments. Even when the sling carriage is moved back, the support carriages keep the same as one another due to the inventive measures Distances.
  • the combination of a torque motor and a cam drum achieves a cable pull that is directly proportional to the cable length.
  • the further embodiment of the invention shows a cam drum with an increasing contour, on which the tension member is wound or unwound during a process of the loop carriage.
  • a contour preferably a conical drum
  • the cam drum consists of a short cylindrical section with a subsequently rising drum contour.
  • the conical part of the drum should preferably have a diameter ratio of 1: 3 to 1: 3.5.
  • the cone-shaped drum contour has helically screwed-in cable grooves, so that an exact guidance of the traction cable on the cone is ensured, as a result of which the predetermined distances between the support carriages are ensured during the process. It is useful here if the drum contour is surrounded by a suitably designed hood at a distance, the traction cable running between the drum contour and the hood. Exact cable guidance on the cam drum can also be achieved in that the cam drum is gearingly connected to a guide device for the traction cable to be guided on the drum contour. Rope displacements, rope entanglements or a rope running over one another on the cam drum are avoided with great certainty. When using heavy-duty steel cables as tension members, the measures described above enable the support carriages to be spaced precisely and very reliably with each other, so that the strip storage works robustly and maintenance-free even in the most difficult operating conditions in the rolling mill.
  • the torque motor and the cam drum connected to it are arranged in the area of the subframe of the support carriage, preferably at the level of the wheel axles of the support carriage, the torque motor making electrical contact with a current-carrying rail arranged in the foundation and between the wheel guides or with a cable garland Has.
  • the cam drum and the torque motor are expediently to be arranged in the middle of the axis, so that the lowest possible lateral forces during the movement act on the support carriages.
  • the band store 1 consists of a loop carriage 2 which is moved on rails 4 by a motor-driven winch 3.
  • the sling carriage 2 carries a deflection roller 5.
  • a feed roller 6 or a discharge roller 7 for the sheet metal strip 8 to be stored is provided at the entrance or exit of the strip store.
  • the support car 9 have wheels 14 which run on the rails 4.
  • a cam drum 15 with a torque motor 16 is arranged in the area of the subframe 29 of each support carriage 9, the torque motor being in contact with a busbar 17 which is arranged between the guide rails 4 in the foundation 18.
  • the torque motor 16 can also receive the power supply via a cable garland, not shown.
  • the cam drum 15 connected to the torque motor 16 - the exemplary embodiment according to FIG. 3 shows a cone 21 - has cable grooves 19 in which a traction cable 20 runs, which forms the connection between loop car 2 and support car 9 and between the support car 9 with one another .
  • the cam drum consists of a short cylindrical drum section 22 with the cone 21 which then rises.
  • the cable grooves 19 are screwed into the cone 21 in a helical manner.
  • the cone is surrounded by a suitably designed hood 24 at a distance, the traction cable 20 running between the cone and hood.
  • the cam drum can be connected in a geared manner with the aid of a toothing 25 and a pinion 26 with a helically grooved pinion shaft 27 to a guide device 28 for the pull rope 20 in order to guide the pull rope on the cone 21 as precisely as possible. This can be done, for example, by providing the guide device 28 with an inner groove corresponding to the pinion shaft 27, so that the guide device is displaced by predetermined paths when the cam drum rotates or when the pinion shaft 27 rotates becomes.
  • the storage of the cam drum and pinion shaft can be carried out by means customary in practice and is not shown for the sake of simplicity.
  • the support carriages 9 and the loop carriage 2 are moved together in the area of the feed roller 6 and the discharge roller 7, respectively.
  • the connecting pull rope 20 is completely wound on the cone 21 for each individual support carriage.
  • the motor-driven winch 3 pulls the sling car 2 against the braking torque of the torque motors 16 onto the winch.
  • the traction cable 20 is unwound from each cam drum by certain amounts which correspond to the travel path of the individual support carriages 9. Since the torque motors 16 are designed in the same way for all support carriages, all support carriages 9 are pulled out against the same braking torque, so that large distances between the support carriages 9 form with respect to the respective travel point of the loop carriage. A cable length-dependent cable pull is therefore achieved.
  • the sling wagon 2 is moved back, whereby the connecting cable between the sling wagon 2 and the support wagon 9 is relieved.
  • the relaxed and shortening pull rope 20 is wound onto the drum contour 23 by amounts by which the distance between the loop carriage 2 and the support carriage 9 decreases.
  • the relief of the traction cable between the sling car and the support car likewise leads to a relief of the connecting traction cable between each support car 9.
  • the relieved and shortening traction cables between the support cars from the individual curve drums In this way, the same distance is always set between the loop carriage 2 and the next support car 9 and between the support car 9 when the tape store is emptied, depending on the respective position of the loop car.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Advancing Webs (AREA)

Abstract

The invention proposes a strip accumulator for the continuous operation of rolling lines, in particular a loop-forming strip accumulator for sheet-metal strips 8 in strip-processing plants, the said strip accumulator comprising a looper car 2 which can be moved on wheel guides 4 to produce a change in the loop, the looper car having at least one deflection roller 5 for a strip loop. Connected to the looper car 2 are supporting cars 9, which can likewise be moved on guides and are connected by traction elements such as cables, chains or the like and are provided with at least one supporting roller 10, 11 for the strip 8. The strip accumulator is equipped with at least one feed roller and one discharge roller 7 for the sheet-metal strip 8. In order to make the spacings between the supporting cars 9 themselves and between the supporting cars 9 and the looper cars 2 equal at all times when the looper car is moved over particular distances, a torque resistance, preferably a torque motor 16, interacting with a cam drum 15, is arranged on each supporting car 9, a traction cable 20 running on the drum profile 23 of the cam drum 15. <IMAGE>

Description

Die Erfindung betrifft einen Bandspeicher für einen kontinuierlichen Betrieb von Walzstraßen, insbesondere einen schlingenbildenden Bandspeicher für Blechbänder in Bandbearbeitungsanlagen, bestehend aus einem im Sinn einer Schlingenveränderung auf Führungen verfahrbaren Schlingenwagen mit wenigstens einer Umlenkrolle für eine Bandschlinge und mit dem Schlingenwagen durch Zuglieder wie Seile, Ketten oder dergleichen verbundene, mit wenigstens einer Tragrolle für das Band versehene ebenfalls auf Führungen verfahrbare Stützwagen, sowie mit wenigstens einer Zuführrolle und einer Ableitrolle für das Band.The invention relates to a strip storage for a continuous operation of rolling mills, in particular a loop-forming strip storage for sheet metal strips in strip processing systems, consisting of a sling carriage that can be moved on guides in the sense of a sling change with at least one deflection roller for a sling and with the sling carriage by tension members such as ropes, chains or The like connected, with at least one support roller for the tape also movable on guides, as well as with at least one feed roller and a discharge roller for the tape.

Bandspeicher für Walzbänder sind erforderlich, um die Walzgerüste in Walzwerken kontinuierlich betreiben zu können und zwar auch dann, wenn Einzelbunde, die vor Einführung in das Walzgerüst miteinander verbunden werden müssen, dem Walzwerk oder Walzgerüst zugeführt und von diesem gewalzt werden sollen. Um eine Verlangsamung der Walzgeschwindigkeit oder gar ein Anhalten des Walzwerkes oder der Walzgerüste zu vermeiden, muß ein Schlingenspeicher und ein Schlingenbildner irgendeiner Form vorgesehen werden, der in seiner Kapazität derart ausgelegt ist, daß das Band auch dann dem Walzgerüst bzw. Walzwerk kontinuierlich zugeführt werden kann, wenn die einzelnen Bunde vorbereitet bzw. miteinander verschweißt werden. Gleiche Überlegungen treffen für andere die Metallbänder verarbeitenden Anlagen zu, bspw. für Beizanlagen oder Glühöfen, die kontinuierlich betrieben werden und bei denen die unterschiedlich einlaufenden Bandgeschwindigkeiten ausgeglichen werden müssen. Zum Einsatz kommen je nach Platzverhältnissen Schlingentürme, Schlingengruben oder horizontal liegende Schlingenzieher.Strip storage for rolled strips is required in order to be able to operate the rolling stands in rolling mills continuously, even if individual bundles which have to be connected to one another before being introduced into the rolling stand are to be fed to the rolling mill or rolling stand and rolled by the latter. In order to avoid slowing down of the rolling speed or even stopping of the rolling mill or the rolling stands, a loop storage device and a loop former of some form must be provided which have a capacity is designed in such a way that the strip can also be fed continuously to the roll stand or rolling mill when the individual bundles are prepared or welded to one another. The same considerations apply to other plants processing the metal strips, for example pickling plants or annealing furnaces that are operated continuously and in which the different incoming strip speeds have to be compensated for. Depending on the space available, sling towers, sling pits or horizontal sling pullers are used.

Horizontal liegende Schlingenzieher bzw. horizontal angeordnete Bandspeicher sind aus dem druckschriftlichen Stand der Technik bekannt, insbesondere aus der DE-OS 1 953 169, der AT-PS 299 103 sowie aus der europäischen Patentanmeldung 0 110 864.Horizontal loop pullers or horizontally arranged tape storage devices are known from the prior art, in particular from DE-OS 1 953 169, AT-PS 299 103 and from European patent application 0 110 864.

Der horizontal liegende Schlingenzieher nach der DE-OS 1 953 169 für Bandverarbeitungsanlagen mit Schlingenwagen und Tragrollen zeichnet sich dadurch aus, daß die Tragrollen in mehreren in Horizontalrichtung beweglichen sogenannten Nachläufern gelagert sind. Die die Nachläufer und den Schlingenwagen verbindenden Seile sind auf Seiltrommeln aufgewickelt und werden durch den Antrieb der Seiltrommeln konstant gespannt gehalten. Da der Schlingenwagen bei seinem Verfahren, im Sinne einer Verkürzung der Vorratsschlinge, die Nachläufer vor sich her schiebt, kommt der Rückstellkraft über die Seiltrommelantriebe lediglich die Aufgabe zu, die Verbindungsseile gespannt zu halten, so daß die jeweils folgenden Nachläufer erst durch den Schlingenwagen bewegt werden, wenn die Seillänge zwischen dem Schlingenwagen und dem jeweils folgenden Nachläufer aufgebraucht ist. Erfolgt der Seiltrommelantrieb durch eine Federtrommel haben die Federn nur eine geringe Standzeit von wenigen Monaten. Erfolgt der Seiltrommelantrieb elektrisch, muß jeder Motor eine eigene Regelung und eine eigene Energiezuführung haben. Beides ist von Nachteil.The horizontal loop puller according to DE-OS 1 953 169 for tape processing systems with loop carriage and idlers is characterized in that the idlers are mounted in several so-called followers that are movable in the horizontal direction. The ropes connecting the trailer and the sling carriage are wound on rope drums and are kept constantly tensioned by the drive of the rope drums. Since the sling carriage pushes the follower in front of it in the sense of shortening the storage sling, the restoring force via the cable drum drives only has the task of keeping the connecting cables taut so that the following sliders are only moved by the loop carriage when the rope length between the sling wagon and the following successor is used up. If the cable drum is driven by a spring drum, the springs only have a short service life of a few months. Is the cable drum driven? electrical, each motor must have its own control and its own energy supply. Both are disadvantageous.

Der horizontale Bandspeicher für Blechbänder gemäß der AT-PS 299 103 enthält einen verfahrbaren, vorzugsweise mit konstantem Moment im Sinne einer Schlaufenvergrößerung antreibbaren Schlingenwagen und mehrere Stützwagen, die entlang von Führungsschienen bewegbar sind. Ein endloses, um Umlenkrollen geführtes Seil ist mit dem Schlingenwagen und den Stützwagen verbunden. Von diesem Seil wird über Abnehmerrollen unter Zwischenschaltung von Untersetzungsgetrieben der Antrieb für die Stützwagen in der Weise abgeleitet, daß bei einer Bewegung des Schlingenwagens die Stützwagen untereinander den gleichen Abstand aufweisen. Ein besonderer Nachteil dieses Bandspeichers ist darin zu sehen, daß für jeden Wagen eine andere Übersetzung notwendig ist und daß eine hohe Verschmutzungsgefahr der Antriebsritzel und der Zahnstange zu keinen exakten Antriebs- und Übersetzungsverhältnissen führt.The horizontal strip store for sheet metal strips according to AT-PS 299 103 contains a movable loop carriage, which can preferably be driven with a constant torque in the sense of an enlarged loop, and several support carriages which can be moved along guide rails. An endless rope, which is guided around pulleys, is connected to the sling carriage and the support carriage. From this rope, the drive for the support car is derived via take-off rollers with the interposition of reduction gears in such a way that the support cars are at the same distance from one another when the sling car moves. A particular disadvantage of this tape storage device can be seen in the fact that a different transmission ratio is necessary for each carriage and that a high risk of contamination of the drive pinion and the rack does not lead to exact drive and transmission ratios.

Der horizontale Bandspeicher gemäß der EP-OS 0 110 864 zeigt ebenfalls einen verfahrbaren Schlingenwagen, an den einzelne Stützwagen mit Hilfe von flexiblen, gegen eine Rückstellkraft ausziehbare Zugglieder gekoppelt sind. Diese Zugglieder sollen zumindest bereichsweise elastisch dehnbar sein. Sie sind bspw. als Gummiseile oder dergleichen ausgebildet und werden schlingenbildend um Umlenkrollen geführt. Diese Ausbildung soll einen stoßfreien Antrieb der Stützwagen vom Schlingenwagen unter Wahrung eines gleichmäßigen Abstandes der einzelnen Stützwagen voneinander bewirken. Nachteilig bei diesem Bandspeicher ist, daß die flexiblen bzw. elastischen Gummiseile relativ schnell altern und spröde werden und deshalb unkontrolliert und unterschiedlich schnell verschleißen können und daß Gummiseile in der rauhen Walzwerksumgebung leicht beschädigt werden können, so daß auch deshalb die Gefahr eines Reißens der Gummiseile besteht.The horizontal belt store according to EP-OS 0 110 864 also shows a movable loop carriage to which individual support carriages are coupled with the aid of flexible tension members which can be pulled out against a restoring force. These tension members should be elastically stretchable at least in some areas. They are designed, for example, as rubber ropes or the like and are looped around deflection rollers. This training is intended to effect a bumpless drive of the support car from the loop car while maintaining a uniform distance between the individual support cars. A disadvantage of this band storage device is that the flexible or elastic rubber ropes age relatively quickly and become brittle and therefore wear out uncontrollably and at different speeds can and that rubber ropes in the rough rolling mill environment can be easily damaged, so that there is also a risk of tearing the rubber ropes.

Es ist die Aufgabe der nachfolgend beschriebenen Erfindung, unter Vermeidung der oben genannten Nachteile einen Bandspeicher zu schaffen, bei welchem die Verbindungen zwischen den Stützwagen und den Schlingenwagen wesentlich haltbarer sind. Bei einem Verfahren des Schlingenwagens im Sinne einer Schlingenveränderung sollen die Abstände der Stützwagen untereinander gleich bleiben, so daß für eine optimale Führung des Bandes auf den Tragrollen der Stützwagen Sorge getragen ist. Ferner soll ein stoßfreies Verfahren der Stützwagen ermöglicht werden. Die Lösung dieser Aufgabe geht aus den Patentansprüchen 1 bis 8 hervor.It is the object of the invention described below, while avoiding the disadvantages mentioned above, to provide a tape storage device in which the connections between the support car and the sling car are much more durable. When the sling carriage is moved in the sense of changing the sling, the distances between the support carriages should remain the same, so that care is taken to ensure that the belt is optimally guided on the support rollers of the support carriages. Furthermore, a smooth movement of the support car is to be made possible. The solution to this problem is evident from the claims 1 to 8.

Nach Anspruch 1 zeichnet sich der Bandspeicher der eingangs genannten Gattung durch eine mindestens an jedem Stützwagen angeordnete mit einem Drehmomentenwiderstand zusammenwirkende Kurventrommel aus, auf deren Trommelmantel als Zugglied ein Zugseil läuft, wobei der Drehmomentenwiderstand ein Drehmomentmotor mit konstantem Drehmoment ist. Die Vorteile des erfindungsgemäßen Bandspeichers liegen darin, daß sowohl bei Füllen als auch beim Entleeren des Speichers das Blechband von Tragrollen der Stützwagen optimal und kontinuierlich getragen wird, daß keine stoßartige Belastung beim Verfahren des Schlingenwagens auf die Stützwagen übertragen wird und daß der Einsatz hochbelastbarer Stahlseile, die Anordnung der Kurventrommel und der bevorzugte Einsatz eines Drehmomentenmotors zu einer sehr hohen Zuverlässigkeit des Systems führen. Der Drehmomentenmotor kann relativ klein ausgelegt werden, da er lediglich die Reibungsmomente zu überwinden hat. Auch bei einem Zurückfahren des Schlingenwagens halten die Stützwagen aufgrund der erfinderischen Maßnahmen untereinander gleiche Abstände ein. Durch die Kombination von Drehmomentenmotor und Kurventrommel wird ein der Seillänge direkt proportional abhängiger Seilzug erreicht.According to claim 1, the tape storage of the type mentioned is characterized by a arranged at least on each support carriage with a torque resistor cooperating cam drum, on the drum shell as a tension member runs a traction rope, the torque resistor is a torque motor with constant torque. The advantages of the band storage device according to the invention are that both when filling and when emptying the storage device, the sheet metal strip is carried optimally and continuously by support rollers of the support car, that no jolting load is transferred to the support car when moving the sling car, and that the use of heavy-duty steel cables is the arrangement of the cam drum and the preferred use of a torque motor lead to a very high reliability of the system. The torque motor can be designed to be relatively small, since it only has to overcome the frictional moments. Even when the sling carriage is moved back, the support carriages keep the same as one another due to the inventive measures Distances. The combination of a torque motor and a cam drum achieves a cable pull that is directly proportional to the cable length.

Die weitere Ausbildung der Erfindung zeigt eine Kurventrommel mit ansteigender Kontur, auf der das Zugglied bei einem Verfahren des Schlingenwagens aufgewickelt bzw. abgewickelt wird. Die Herstellung einer solchen Kontur, vorzugsweise einer Konustrommel kann besonders kostengünstig erfolgen. Von Vorteil ist, wenn nach einer weiteren Ausbildung der Erfindung die Kurventrommel aus einem kurzen zylindrischen Abschnitt mit anschließend ansteigender Trommelkontur besteht. Der konische Teil der Trommel sollte vorzugsweise ein Durchmesserverhältnis von 1:3 bis 1:3,5 haben.The further embodiment of the invention shows a cam drum with an increasing contour, on which the tension member is wound or unwound during a process of the loop carriage. The production of such a contour, preferably a conical drum, can be carried out particularly inexpensively. It is advantageous if, according to a further embodiment of the invention, the cam drum consists of a short cylindrical section with a subsequently rising drum contour. The conical part of the drum should preferably have a diameter ratio of 1: 3 to 1: 3.5.

In Weiterbildung der Erfindung weist die konusförmige Trommelkontur schraubenförmig eingedrehte Seilrillen auf, so daß eine exakte Führung des Zugseiles auf dem Konus sichergestellt wird, wodurch die vorgegebenen Abstände der Stützwagen untereinander während des Verfahrens gewährleistet werden. Zweckmäßig ist hierbei, wenn die Trommelkontur von einer entsprechend ausgebildeten Haube mit Abstand umgeben ist, wobei zwischen Trommelkontur und Haube das Zugseil verläuft. Eine exakte Seilführung auf der Kurventrommel kann auch dadurch erfolgen, daß die Kurventrommel getrieblich mit einer Führungsvorrichtung für das auf der Trommelkontur zu führende Zugseil verbunden ist. Seilverschiebungen, Seilverschlingungen oder ein übereinanderlaufendes Seil auf der Kurventrommel werden dadurch mit großer Sicherheit vermieden. Bei Verwendung hoch belastbarer Stahlseile als Zugglieder ermöglichen die zuvor beschriebenen Maßnahmen eine exakte und sehr zuverlässige Abstandsführung der Stützwagen untereinander, so daß der Bandspeicher auch bei schwierigsten Einsatzbedingungen im Walzwerk robust und wartungsfrei arbeitet.In a further development of the invention, the cone-shaped drum contour has helically screwed-in cable grooves, so that an exact guidance of the traction cable on the cone is ensured, as a result of which the predetermined distances between the support carriages are ensured during the process. It is useful here if the drum contour is surrounded by a suitably designed hood at a distance, the traction cable running between the drum contour and the hood. Exact cable guidance on the cam drum can also be achieved in that the cam drum is gearingly connected to a guide device for the traction cable to be guided on the drum contour. Rope displacements, rope entanglements or a rope running over one another on the cam drum are avoided with great certainty. When using heavy-duty steel cables as tension members, the measures described above enable the support carriages to be spaced precisely and very reliably with each other, so that the strip storage works robustly and maintenance-free even in the most difficult operating conditions in the rolling mill.

In einer bevorzugten Ausgestaltung der Erfindung ist der Drehmomentenmotor und die damit verbundene Kurventrommel im Bereich des Fahrschemels des Stützwagens angeordnet, vorzugsweise in Höhe der Radachsen des Stützwagens, wobei der Drehmomentenmotor elektrischen Kontakt mit einer im Fundament und zwischen den Radführungen angeordneten stromzuführenden Schiene oder mit einer Kabelgirlande hat. Zweckmäßigerweise sind hierbei die Kurventrommel und der Drehmomentenmotor in der Achsmitte anzuordnen, damit auf die Stützwagen möglichst geringe Querkräfte beim Verfahren einwirken.In a preferred embodiment of the invention, the torque motor and the cam drum connected to it are arranged in the area of the subframe of the support carriage, preferably at the level of the wheel axles of the support carriage, the torque motor making electrical contact with a current-carrying rail arranged in the foundation and between the wheel guides or with a cable garland Has. The cam drum and the torque motor are expediently to be arranged in the middle of the axis, so that the lowest possible lateral forces during the movement act on the support carriages.

Die Erfindung wird anhand eines Ausführungsbeispiels für einen Bandspeicher mit Schlingenwagen und Stützwagen näher beschrieben. Es zeigen

Figur 1
eine vereinfachte Seitenansicht eines Bandspeichers,
Figur 2
eine Vorderansicht eines Stützwagens mit Kurventrommel und Drehmomentenmotor,
Figur 3
eine Ansicht einer Kurventrommel mit einer Vorrichtung zur Seilführung.
The invention is described in more detail using an exemplary embodiment for a tape store with loop carriage and support carriage. Show it
Figure 1
a simplified side view of a tape store,
Figure 2
a front view of a support carriage with cam drum and torque motor,
Figure 3
a view of a cam drum with a device for rope guidance.

Gemäß Fig. 1 besteht der Bandspeicher 1 aus einem Schlingenwagen 2, der von einer motorgetriebenen Seilwinde 3 auf Schienen 4 verfahren wird. Der Schlingenwagen 2 trägt eine Umlenkrolle 5. Am Eingang bzw. Ausgang des Bandspeichers ist eine Zuführrolle 6 bzw. eine Ableitrolle 7 für das zu speichernde Blechband 8 vorgesehen. Zwischen der Zuführrolle 6 bzw. Ableitrolle 7 und dem Schlingenwagen 2 befinden sich mehrere Stützwagen 9 mit Tragrollen 10, 11 für das Blechband, welches als Obertrum 12 bzw. Untertrum 13 über die Tragrollen 10, 11 geführt ist. Die Stützwagen 9 haben Räder 14, die auf den Schienen 4 laufen. Im Bereich des Fahrschemels 29 eines jeden Stützwagens 9 ist gemäß Fig. 2 eine Kurventrommel 15 mit Drehmomentenmotor 16 angeordnet, wobei der Drehmomentenmotor Kontakt hat mit einer Stromschiene 17, die zwischen den Führungsschienen 4 im Fundament 18 angeordnet ist. Der Drehmomentenmotor 16 kann die Stromzuführung auch über eine nicht dargestellte Kabelgirlande erhalten. Die mit dem Drehmomentenmotor 16 in Verbindung stehende Kurventrommel 15 - das Ausführungsbeispiel gemäß Fig. 3 zeigt einen Konus 21 - weist Seilrillen 19 auf, in denen ein Zugseil 20 läuft, welches die Verbindung zwischen Schlingenwagen 2 und Stützwagen 9 sowie zwischen den Stützwagen 9 untereinander bildet. Die Kurventrommel besteht aus einem kurzen zylindrischen Trommelabschnitt 22 mit dem anschliessend ansteigenden Konus 21. Die Seilrillen 19 sind auf dem Konus 21 schraubenförmig eingedreht. Der Konus ist von einer entsprechend ausgebildeten Haube 24 mit Abstand umgeben, wobei zwischen Konus und Haube das Zugseil 20 verläuft. Zusätzlich oder auch gesondert kann die Kurventrommel mit Hilfe einer Verzahnung 25 und einem Ritzel 26 mit einer schraubenförmig genuteten Ritzelwelle 27 mit einer Führungsvorrichtung 28 für das Zugseil 20 getrieblich verbunden sein, um das Zugseil auf dem Konus 21 möglichst exakt zu führung. Dies kann bspw. dadurch erfolgen, daß die Führungsvorrichtung 28 mit einer der Ritzelwelle 27 entsprechenden Innennut versehen ist, so daß die Führungsvorrichtung bei einer Drehung der Kurventrommel respektive bei einer Drehung der Ritzewelle 27 auf dieser um vorgegebene Wege verschoben wird. Die Lagerung von Kurventrommel und Ritzelwelle kann mit in der Praxis üblichen Mitteln vorgenommen werden und ist der Einfachheit halber nicht näher dargestellt.1, the band store 1 consists of a loop carriage 2 which is moved on rails 4 by a motor-driven winch 3. The sling carriage 2 carries a deflection roller 5. A feed roller 6 or a discharge roller 7 for the sheet metal strip 8 to be stored is provided at the entrance or exit of the strip store. Between the feed roller 6 or deflection roller 7 and the loop carriage 2 there are several support carriages 9 with support rollers 10, 11 for the sheet metal strip, which is guided as the upper run 12 and lower run 13 over the support rollers 10, 11. The support car 9 have wheels 14 which run on the rails 4. 2, a cam drum 15 with a torque motor 16 is arranged in the area of the subframe 29 of each support carriage 9, the torque motor being in contact with a busbar 17 which is arranged between the guide rails 4 in the foundation 18. The torque motor 16 can also receive the power supply via a cable garland, not shown. The cam drum 15 connected to the torque motor 16 - the exemplary embodiment according to FIG. 3 shows a cone 21 - has cable grooves 19 in which a traction cable 20 runs, which forms the connection between loop car 2 and support car 9 and between the support car 9 with one another . The cam drum consists of a short cylindrical drum section 22 with the cone 21 which then rises. The cable grooves 19 are screwed into the cone 21 in a helical manner. The cone is surrounded by a suitably designed hood 24 at a distance, the traction cable 20 running between the cone and hood. Additionally or also separately, the cam drum can be connected in a geared manner with the aid of a toothing 25 and a pinion 26 with a helically grooved pinion shaft 27 to a guide device 28 for the pull rope 20 in order to guide the pull rope on the cone 21 as precisely as possible. This can be done, for example, by providing the guide device 28 with an inner groove corresponding to the pinion shaft 27, so that the guide device is displaced by predetermined paths when the cam drum rotates or when the pinion shaft 27 rotates becomes. The storage of the cam drum and pinion shaft can be carried out by means customary in practice and is not shown for the sake of simplicity.

Ist der Bandspeicher 1 leer, sind die Stützwagen 9 und der Schlingenwagen 2 im Bereich der Zuführrolle 6 bzw. der Ableitrolle 7 zusammengefahren. In diesem Fall ist das verbindenden Zugseil 20 bei jedem einzelnen Stützwagen vollständig auf dem Konus 21 aufgewickelt. Wird der Bandspeicher gefüllt, zieht die motorgetriebene Seilwinde 3 den Schlingenwagen 2 gegen das Bremsmoment der Drehmomentenmotoren 16 auf die Seilwinde zu. Bei diesem Vorgang wird von jeder Kurventrommel das Zugseil 20 um bestimmte Beträge abgewickelt, die dem Verfahrweg der einzelnen Stützwagen 9 entsprechen. Da die Drehmomentmotoren 16 für alle Stützwagen in gleicher Weise ausgelegt sind, werden alle Stützwagen 9 gegen das gleiche Bremsmoment ausgezogen, so daß sich hierdurch - bezogen auf den jeweiligen Verfahrpunkt des Schlingenwagens -gleich große Abstände der Stützwagen 9 untereinander ausbilden. Es wird also ein seillängen-abhängiger Seilzug erreicht.If the band storage device 1 is empty, the support carriages 9 and the loop carriage 2 are moved together in the area of the feed roller 6 and the discharge roller 7, respectively. In this case, the connecting pull rope 20 is completely wound on the cone 21 for each individual support carriage. If the band store is filled, the motor-driven winch 3 pulls the sling car 2 against the braking torque of the torque motors 16 onto the winch. In this process, the traction cable 20 is unwound from each cam drum by certain amounts which correspond to the travel path of the individual support carriages 9. Since the torque motors 16 are designed in the same way for all support carriages, all support carriages 9 are pulled out against the same braking torque, so that large distances between the support carriages 9 form with respect to the respective travel point of the loop carriage. A cable length-dependent cable pull is therefore achieved.

Wird der Bandspeicher 1 geleert, so wird der Schlingenwagen 2 zurückbewegt, wodurch eine Entlastung des verbindenden Zugseiles zwischen Schlingenwagen 2 und Stützwagen 9 eintritt. Infolge des am Drehmomentenmotor anstehenden Momentes wird das entspannte und sich verkürzende Zugseil 20 auf die Trommelkontur 23 um solche Beträge aufgewickelt, um die der Abstand von Schlingenwagen 2 und Stützwagen 9 abnimmt. Die Entlastung des Zugseiles zwischen Schlingenwagen und Stützwagen führt gleichermaßen zu einer Entlastung des verbindenden Zugseiles zwischen jedem Stützwagen 9. Infolge des an den Drehmomentenmotoren 16 der einzelnen Stützwagen 9 anstehenden konstanten Momentes werden die entlasteten und sich verkürzenden Zugseile zwischen den Stützwagen von den einzelnen Kurventrommeln aufgewickelt. Auf diese Weise stellt sich auch beim Entleeren des Bandspeichers zwischen dem Schlingenwagen 2 und dem nächsten Stützwagen 9 sowie zwischen den Stützwagen 9 untereinander immer der gleiche Abstand ein und zwar in Abhängigkeit von der jeweiligen Position des Schlingenwagens.If the band storage device 1 is emptied, the sling wagon 2 is moved back, whereby the connecting cable between the sling wagon 2 and the support wagon 9 is relieved. As a result of the torque present at the torque motor, the relaxed and shortening pull rope 20 is wound onto the drum contour 23 by amounts by which the distance between the loop carriage 2 and the support carriage 9 decreases. The relief of the traction cable between the sling car and the support car likewise leads to a relief of the connecting traction cable between each support car 9. As a result of the constant moment at the torque motors 16 of the individual support cars 9, the relieved and shortening traction cables between the support cars from the individual curve drums. In this way, the same distance is always set between the loop carriage 2 and the next support car 9 and between the support car 9 when the tape store is emptied, depending on the respective position of the loop car.

Claims (8)

  1. Strip accumulator for the continuous operation of rolling mills, especially a loop-forming strip accumulator (1) for sheet-metal strips (8) in strip processing installations, consisting of a looping carriage (2), which is movable on guides (4) in the sense of a loop change, with at least one deflecting roller (5) for a strip loop and with support carriages (9), which are connected with the looping carriage (2) by traction elements such as cables, chains or the like, and provided with at least one support roller (10, 11) for the strip (8) and which are similarly movable on guides (4), as well as with at least one infeed roller (6) and one feed-out roller (7) for the strip (8), characterised by a cam drum (15) which is arranged at least at each support carriage (9), co-operates with a torque resisting device (16) and on the drum shell of which a traction cable (20) runs as traction element, wherein the torque resisting device (16) is a torque motor with constant torque.
  2. Strip accumulator according to claim 1, characterised thereby that the torque of the torque motor is settable.
  3. Strip accumulator according to claim 1 or 2, characterised thereby that the cam drum (15) has a rising contour, preferably a rising cone, on or from which the traction cable (20) is wound or unwound during travel of the looping carriage (2).
  4. Strip accumulator according to claim 1, 2 or 3, characterised thereby that the cam drum (15) consists of a short cylindrical drum section (22) with adjoining rising drum contour (23).
  5. Strip accumulator according to at least one of claims 1 to 4, characterised thereby that the drum contour (23) has helical recessed cable grooves (19).
  6. Strip accumulator according to at least one of claims 1 to 5, characterised thereby that the drum contour (23) is surrounded at a spacing by a correspondingly formed hood (24), wherein the traction cable (20) runs between drum contour (23) and hood (24).
  7. Strip accumulator according to one of the preceding claims, characterised thereby that the cam drum (15) is connected by gearing with a guide device (28) for the traction cable (20) to be guided on the drum contour (23).
  8. Strip accumulator according to one of the preceding claims, characterised thereby that the torque motor (16) and the cam drum (15) connected therewith are arranged in the region of the travel bogie (29) of the support carriage (9), preferably at the level of the wheel axles (30) of the support carriage, and that the torque motor has electrical contact with a current-conducting rail (17) arranged in the foundation (18) and between the wheel guides (4) or with a cable garland.
EP90104331A 1989-03-22 1990-03-07 Strip accumulator for the continuous operation of rolling lines Expired - Lifetime EP0388708B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3909403 1989-03-22
DE3909403A DE3909403A1 (en) 1989-03-22 1989-03-22 BAND STORAGE FOR CONTINUOUS OPERATION OF ROLLING MILLS

Publications (2)

Publication Number Publication Date
EP0388708A1 EP0388708A1 (en) 1990-09-26
EP0388708B1 true EP0388708B1 (en) 1994-06-01

Family

ID=6376953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104331A Expired - Lifetime EP0388708B1 (en) 1989-03-22 1990-03-07 Strip accumulator for the continuous operation of rolling lines

Country Status (4)

Country Link
EP (1) EP0388708B1 (en)
JP (1) JPH02284716A (en)
AT (1) ATE106289T1 (en)
DE (2) DE3909403A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773074A1 (en) 1995-11-13 1997-05-14 Sms Schloemann-Siemag Aktiengesellschaft Horizontal strip-accumulator
DE102011011666A1 (en) 2010-09-22 2012-03-22 Sms Siemag Ag Drive for horizontal strip accumulator of strip system, has winch drum arranged behind fixed point towards two running directions, and cable winch movable transverse to third running direction proportional to length of winch

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5659986B2 (en) * 2011-08-22 2015-01-28 Ｊｆｅスチール株式会社 Roll section trolley for loop section
CN102764844A (en) * 2012-07-28 2012-11-07 海安县威仕重型机械有限公司 Sprocket-drive flatcar translation mechanism
ES2686371T3 (en) 2013-01-24 2018-10-17 Cockerill Maintenance & Ingenierie S.A. Horizontal band accumulator with thin band support trolleys and passive central hitch system
CN103240286B (en) * 2013-05-30 2015-09-16 攀钢集团西昌钢钒有限公司 Horizontal loop car
CN112019070B (en) * 2020-10-27 2021-02-23 南京盈杰信息科技有限公司 Rectifier for electrical product

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT299103B (en) * 1970-10-19 1972-06-12 Voest Ag Strip storage, in particular for sheet metal strips
DE2140901C3 (en) * 1971-08-16 1982-01-07 Maschinenfabrik Scharf Gmbh, 4700 Hamm Maneuvering device
GB1447633A (en) * 1973-03-01 1976-08-25 Bicc Ltd Winding wire and other flexible material
DE2628173A1 (en) * 1976-06-23 1977-12-29 Koch & Co Ernst ARRANGEMENT FOR AIR COOLING ON PULL DRUM DRUM
AT370348B (en) * 1979-10-08 1983-03-25 Haginger Industrieanlagen CABLE DEVICE FOR THE FOREIGN DANGER OF A TUBE AND ROD DRAWING MACHINE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0773074A1 (en) 1995-11-13 1997-05-14 Sms Schloemann-Siemag Aktiengesellschaft Horizontal strip-accumulator
US5769302A (en) * 1995-11-13 1998-06-23 Sms Schloemann-Siemag Aktiengesellschaft Horizontal strip storage unit
DE102011011666A1 (en) 2010-09-22 2012-03-22 Sms Siemag Ag Drive for horizontal strip accumulator of strip system, has winch drum arranged behind fixed point towards two running directions, and cable winch movable transverse to third running direction proportional to length of winch

Also Published As

Publication number Publication date
DE3909403A1 (en) 1990-09-27
JPH02284716A (en) 1990-11-22
ATE106289T1 (en) 1994-06-15
DE59005863D1 (en) 1994-07-07
EP0388708A1 (en) 1990-09-26

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