EP0088347A1 - Apparatus for keeping the tension of metal strips at a constant level - Google Patents

Apparatus for keeping the tension of metal strips at a constant level Download PDF

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Publication number
EP0088347A1
EP0088347A1 EP83102006A EP83102006A EP0088347A1 EP 0088347 A1 EP0088347 A1 EP 0088347A1 EP 83102006 A EP83102006 A EP 83102006A EP 83102006 A EP83102006 A EP 83102006A EP 0088347 A1 EP0088347 A1 EP 0088347A1
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Prior art keywords
chain
strip
tension
systems
braking
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EP83102006A
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German (de)
French (fr)
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EP0088347B2 (en
EP0088347B1 (en
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Norbert Umlauf
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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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/006—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only winding-up or winding-off several parallel metal bands
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • 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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/345—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the tension or advance of the material
    • B21C47/3458—Endlessly revolving chain systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band

Definitions

  • the invention relates to a device for pulling or braking metal strips, in particular to keep the tension of narrow strips to be wound on reels with a band-wise separate braking effect, the opening and closing
  • Metal strip is and accompanimentsanlagen in B preferably moved with drivers or traction and braking roller systems. .
  • the necessary belt tension is generated in such a system in addition to drivers and reels, especially with tension and brake roller systems.
  • the rollers are driven and more or less wrapped around the belt.
  • the strip hoists can only be set up or taken down from roll to roll within very specific limits.
  • the belt deflections require additional drive power and are undesirable for metallurgical and technological reasons.
  • the roll diameters are chosen so that parts of the strip are plastically deformed even with small strip thicknesses.
  • the chain pulling and braking device can be used in particular as a brake scaffold in splitting systems.
  • a known retaining device (DE PS 1 804 178) consists of several rings which are rotatably arranged under friction on a shaft upstream of the reel.
  • the braking torque can be adjusted to a maximum belt tension by means of an axially supplied pressure medium, the braking torque being achieved by means of inflatable chambers inserted between the rings Friction discs are transferred to the flanks of the ring hubs. If higher stresses occur, the corresponding rings perform compensating rotary movements relative to the shaft and to the other rings.
  • the invention has for its object to avoid the aforementioned disadvantages and to provide a simple and reliable device for keeping the tension constant for split strips and unsplit strips, without the need for an additional preferential device when pulling out wide strip material from a tension-free strip sag, the strip being tends to run sideways, the expensive control driver can be omitted, since the right-angle entry of the belt is achieved by the twisting movement of the chain pulling and braking device.
  • the object is achieved in that the metal strip is clamped between two rotating chain systems.
  • the support segments are guided coaxially to the belt, lie opposite one another in pairs, the contact surfaces with the metal belt receive a high coefficient of friction and with the support surface a low friction coefficient or a rolling support, and due to the profiling and the degree of hardness Coating and its thickness, the elasticity can be metered.
  • the support rollers are fed to the support area via a run-up curve, so that a soft transfer of the respective chain segment is achieved.
  • the chain brake device is preferably adjusted in slit systems according to the lowest strip speed.
  • the strip strips with the faster strip speeds have an advance in the contact area of the chain brake device.
  • the associated different lengths of the split strip are compensated for by the elasticity of the covering, which is initially compressed and allows springing back in the area of the respective advance.
  • the specific tension in the strip cross-section changes only insignificantly, since the pressure forces can be distributed over a relatively large area.
  • the narrow-band slit strips can be wound up with uniform tension regardless of thickness differences.
  • the pulling or braking forces can be regulated continuously over a wide range using the contact pressure of the chain systems.
  • the transferable forces can be significantly increased by using additional chain wheels or support structures within the chain systems.
  • the chain pulling and braking device can still be used wherever the so-called S-roller units are used in belt treatment lines.
  • Stretch-bending straightening units are provided with up to 5 S-rolls in front of and behind the bending stand so that the necessary strip tension can be applied. It is advisable to equip each individual S-roll with a separate GS drive or, in the case of mechanical coupling, with a GS compensating drive. This is necessary because due to the manufacturing tolerances and the uneven wear of the S-roller coatings, relative speeds have to be avoided. This leads to a considerable expenditure of mechanical and electrical equipment as well as a large space requirement.
  • the chain pulling and braking device is used in a gap line as a brake stand, the narrow belts would be fed from a splitting shear, not shown, via a loop storage device with a deflection roller and then through the chain brake device via a further deflection roller to the take-up reel.
  • the actual chain brake device remains unchanged in all gap programs.
  • the chain system is preferably operated by a direct current motor with a comb gear connected downstream.
  • the braking torques are passed on via the shaft 2 to the chain wheels 3 and to the chain segments.
  • the support rollers 5 transmit the torques once and support the segments 4 in the driving area via guide strips 6a with support curves 6 in the inlet and outlet and brace the belt 1 by chain segments 4 lying opposite each other over the segment coating 7, which as an elastic covering 11 with a profile 12 can be executed.
  • the lower chain system 4b is fixed, while the upper chain system 4a is adjustable.
  • the contact forces are adjustable.
  • the chains are pretensioned by means of cylinder 8, which displaces a guided bearing housing 9.
  • the oscillating rotating brush 10 removes all possible contaminations and buildup on the contact surfaces.
  • a special application provides that the fixed chain system is designed as a rocker construction 13. This ensures that the chain pulling and braking device can be inclined to a certain angle in accordance with the incoming belt.
  • the control frame 14 has the task, if the tape does not run at 90 ° on the segments 4, to turn the entire chain pulling and braking device in the tape level until the right-angled tape entry is restored. Automatic control is state of the art.

Abstract

Strip processing lines require tension or back tension to be applied to the strip, as the case may be. These requirements are best met by the proposed chain bridle. The recoiling of adjacent slit strips on a tension reel will result in varying rewinding speeds and tensions due to the different thickness of the individual strands. Thick strands will be rewound too tight and thin strip too loose. Therefore, the chain bridle is installed before the tension reel to keep the tension of the various strands or a wide strip at a constant value. The strip (1) is clamped between two circulating chain systems (4a,4b), one arranged below and the other above the strip passline. One chain system (4b) is fixed, the other one (4a) is adjustable. The chain segments (4) of the chain systems (4a,4b) are provided with a covering and are moved parallel to the strip (1) through support rolls (5) and guide gibs (6a) with entry and exit guide curves (6) with the latter ensuring an adequate clamping pressure of the relevant opposite chain segments (4). The segment covering (7) may consist of an elastic coating (11) provided with additional shapes or profiled surfaces (12).

Description

Die Erfindung betrifft eine Vorrichtung zum Ziehen bzw. Bremsen von Metallbändern, insbesondere das Konstanthalten der Spannung von auf Haspel aufzuwickelnden Schmalbändern mit bandweise getrennter Bremswirkung , das Auf- undThe invention relates to a device for pulling or braking metal strips, in particular to keep the tension of narrow strips to be wound on reels with a band-wise separate braking effect, the opening and closing

Abbauen von Spannungen in Bandbehandlungslinien sowie zwischen Streckbiege-Richteinheiten.Relief of stresses in strip treatment lines and between stretch bending straightening units.

Metallband wird in Bandbehandlungsanlagen vorzugsweise mit Treibern oder Zug- und Bremsrollensystemen bewegt..Der notwendige Bandzug wird in einer solchen Anlage neben Treibern und Haspeln besonders mit Zug- und Bremsrollensystemen erzeugt. Dabei sind die Rollen angetrieben und von dem Band mehr oder weniger umschlungen. Die Bandzüge können von Rolle zu Rolle nur in ganz bestimmten Grenzen auf- bzw. abgebaut werden. Die Bandumlenkungen erfordern zusätzliche Antriebsleistungen und sind aus metallurgischen und technologischen Gründen unerwünscht. In der Praxis werden aus Kostengründen die Rollendurchmesser so gewählt, daß schon bei geringen Banddicken Teile des Bandes plastisch verformt werden. Diese Nachteile sind insbesondere für dickere Bänder, für Edelstahlbänder, für besondere Werkstoffqualitäten wie Siliziumband und oberflächenempfindliche Bänder von gravierender Bedeutung.Metal strip is andbehandlungsanlagen in B preferably moved with drivers or traction and braking roller systems. . The necessary belt tension is generated in such a system in addition to drivers and reels, especially with tension and brake roller systems. The rollers are driven and more or less wrapped around the belt. The strip hoists can only be set up or taken down from roll to roll within very specific limits. The belt deflections require additional drive power and are undesirable for metallurgical and technological reasons. In practice, for reasons of cost, the roll diameters are chosen so that parts of the strip are plastically deformed even with small strip thicknesses. These disadvantages are especially for thicker bands for E delstahlbänder, special material qualities such as silicon band and surface-sensitive tapes of serious importance.

Die hier aufgeführten Nachteile werden durch die nachstehend beschriebene Kettenziehmaschine eliminiert. Weitere Vorteile dieser Vorrichtung sind, daß der Vortrieb oberflächenschonend erfolgt, da keine Relativbewegungen stattfinden und die spezifische Belastung sehr gering gehalten werden kann; der Platzbedarf insbesondere bei großer Zugdifferenz und bei größeren Banddicken geringer ist und auch die Kostenrechnungen wesentlich günstiger ausfallen.The disadvantages listed here are eliminated by the chain pulling machine described below. Further advantages of this device are that the propulsion is gentle on the surface, since there are no relative movements and the specific load can be kept very low; the space requirement is particularly low in the case of a large train difference and in the case of larger strip thicknesses, and the cost calculations are also significantly cheaper.

Die Kettenzieh- und Bremsvorrichtung kann insbesondere als Bremsgerüst in Spaltanlagen eingesetzt werden.The chain pulling and braking device can be used in particular as a brake scaffold in splitting systems.

Beim Aufwickeln von Schmalband-Spaltstreifen auf einen Haspel entstehen aufgrund von Dickenabweichungen, die auf die Geometrie eines gewalzten Breitbandes zurückzuführen sind, der nebeneinander aufgewickelten Bandstreifen auf den Haspel unterschiedliche Wickeldurchmesser und damit unterschiedliche Aufwickelgeschwindigkeiten und -spannungen. Die dicken Bandstreifen werden daher zu stramm und die dünnen Bandstreifen zu lose gewickelt.When winding narrow-band slit strips on a reel, different winding diameters and thus different winding speeds and tensions arise due to thickness deviations, which are due to the geometry of a rolled broad band, of the strip strips wound next to one another on the reel. The thick strips of tape are therefore too tight and the thin strips are wound too loosely.

Zur Erzielung einheitlicher Schmalbunde sind daher bereits Rückhalte- bzw. Bremsvorrichtungen bekannt, die auch ohne direkte Einwirkung auf die Oberflächen der Spaltbänder mittels Bandbremsen unterschiedliche Bandzüge beim Aufwickeln von Schmalbändern ausgleichen. Eine bekannte Rückhaltevorrichtung (DE PS 1 804 178) besteht aus mehreren Ringen, welche unter Reibung drehbar auf einer dem Haspel vorgeschalteten Welle angeordnet sind. Das Bremsmoment ist durch ein axial zugeführtes Druckmittel auf eine maximale Bandspannung einstellbar, wobei das Bremsmoment über zwischen den Ringen eingesetzte aufblasbare Kammern mittels Reibscheiben auf die Flanken der Ringnaben übertragen wird. Beim Auftreten von höheren Spannungen führen die entsprechenden Ringe relativ zur Welle und zu den übrigen Ringen ausgleichende Drehbewegungen aus. Die Bauart dieser Rückhaltevorrichtungen mit einer Vielzahl von genau zu bearbeitenden Bremsscheiben und an den Ringnaben vorgesehenen Bremsflächen .ist sehr aufwendig. Außerdem ist von Nachteil, daß eine Ein-. richtung erforderlich ist, welche den Vorzug aufbringen muß; um anschließend eine Zugverstärkung vornehmen zu können.In order to achieve uniform narrow bundles, restraint or braking devices are therefore already known, which compensate for different strip tension when winding narrow strips even without direct action on the surfaces of the split strips by means of band brakes. A known retaining device (DE PS 1 804 178) consists of several rings which are rotatably arranged under friction on a shaft upstream of the reel. The braking torque can be adjusted to a maximum belt tension by means of an axially supplied pressure medium, the braking torque being achieved by means of inflatable chambers inserted between the rings Friction discs are transferred to the flanks of the ring hubs. If higher stresses occur, the corresponding rings perform compensating rotary movements relative to the shaft and to the other rings. The design of these restraints with a variety of precisely machined brake discs and the R ingnaben provided braking surfaces .is very expensive. It is also disadvantageous that a single. direction is required, which must bring preference; to subsequently be able to reinforce the train.

Der Erfindung liegt die Aufgabe zugrunde, die vorgenannten Nachteile zu vermeiden und eine einfache und betriebssichere Vorrichtung zum Konstanthalten der Spannung für Spaltbänder und ungespaltene Bänder vorzusehen, ohne daß eine zusätzliche Vorzugseinrichtung erforderlich ist Beim Herausziehen von breitem Bandmaterial aus einem spannungslosen Banddurchhang, wobei das Band zum seitlichen Verlaufen neigt, kann der aufwendige Steuertreiber entfallen, da der rechtwinkelige Einlauf des Bandes durch die Verdrehbewegnung der Kettenzieh- und -bremsvorrichtung erreicht wird.The invention has for its object to avoid the aforementioned disadvantages and to provide a simple and reliable device for keeping the tension constant for split strips and unsplit strips, without the need for an additional preferential device when pulling out wide strip material from a tension-free strip sag, the strip being tends to run sideways, the expensive control driver can be omitted, since the right-angle entry of the belt is achieved by the twisting movement of the chain pulling and braking device.

Nach der Erfindung wird die Aufgabe dadurch gelöst, daß das Metallband zwischen zwei umlaufenden Kettensystemen eingespannt wird. Nach weiteren Ausgestaltungen der Erfindung ist vorgesehen, daß die Stützsegmente koaxial zum Band geführt werden, sich paarweise gegenüberliegen, die Berührungsflächen mit dem Metallband einen hohen Reibungskoeffizienten und mit der Stützfläche einen geringen Reibungskoeffizienten bzw. eine rollende Abstützung erhält und durch die Profilierung und den Härtegrad der Besch.ichtung sowie deren Dicke die Elastizität dosiert werden kann.According to the invention the object is achieved in that the metal strip is clamped between two rotating chain systems. According to further refinements of the invention, it is provided that the support segments are guided coaxially to the belt, lie opposite one another in pairs, the contact surfaces with the metal belt receive a high coefficient of friction and with the support surface a low friction coefficient or a rolling support, and due to the profiling and the degree of hardness Coating and its thickness, the elasticity can be metered.

Hierdurch ist es möglich, das Band ohne Relativbewegung zwischen Band und Kontaktfläche des Belages zurückzuhalten und bei empfindlichen Bändern die Oberfläche frei von allen Veränderungen zu halten. Die Stützrollen werden über eine Anlaufkurve dem Stützbereich zugeführt, so daß ein weiches Übernehmen des jeweiligen Kettensegmentes erreicht wird.This makes it possible to retain the tape without relative movement between the tape and the contact surface of the covering and to keep the surface of sensitive tapes free of all changes. The support rollers are fed to the support area via a run-up curve, so that a soft transfer of the respective chain segment is achieved.

Die Kettenbremsvorrichtung wird in Spaltanlagen vorzugsweise entsprechend der geringsten Streifengeschwindigkeit eingeregelt. Die Bandstreifen mit den schnelleren Streifengeschwindigkeiten haben eine Voreilung im Kontaktbereich der Kettenbremsvorrichtung Die damit verbundenen unterschiedlichen Längen des Spaltbandes werden durch die Elastizität des Belages ausgeglichen, der zunächst gestaucht wird und im Bereich der jeweiligen Voreilung ein Nachfedern ermöglicht. Die spezifische Spannung im Bandstreifenquerschnitt verändert sich dabei nur unwesentlich, da die Andruckkräfte auf eine relativ große Fläche verteilt werden können. In den Fig. 5-5b sind diese Verhältnisse schematisch dargestellt, wobei nach Fig. 5 die Streifengeschwindigkeit = Umfangsgeschwindigkeit ist; nach Fig. 5zu ist die Streifengeschwindigkeit > Umfangsgeschwindigkeit und nach Fig. 5b ist die Streifengeschwindigkeit» Umfangsgeschwindigkeit. Weiterhin ist ein wichtiger Effekt, daß durch die Gestaltung der Anlaufkurven eine Vorspannung auf den Belag, der zweckmäßigerweise als Stollen ausgebildet wird, gebracht werden kann.The chain brake device is preferably adjusted in slit systems according to the lowest strip speed. The strip strips with the faster strip speeds have an advance in the contact area of the chain brake device. The associated different lengths of the split strip are compensated for by the elasticity of the covering, which is initially compressed and allows springing back in the area of the respective advance. The specific tension in the strip cross-section changes only insignificantly, since the pressure forces can be distributed over a relatively large area. These relationships are shown schematically in FIGS. 5-5b, the strip speed = peripheral speed according to FIG. 5; according to FIG. 5zu the strip speed is> peripheral speed and according to FIG. 5b the strip speed is »peripheral speed. Another important effect is that the design of the start-up curves allows a preload to be applied to the covering, which is expediently designed as a stud.

Mit der so geschaffenen Zieh- und Rückhaltevorrichtung können die Schmalband-Spaltstreifen unabhängig von Dickenunterschieden mit gleichmäßiger Spannung aufgewickelt werden. Über die Anpreßkräfte der Kettensysteme können die Zieh- bzw. Bremskräfte in weiten Bereichen stufenlos geregelt werden. Durch die Verwendung zusätzlicher Kettenräder bzw. Stützkonstruktionen innerhalb der Kettensysteme können die übertragbaren Kräfte wesentlich gesteigert werden.With the pulling and retention device created in this way, the narrow-band slit strips can be wound up with uniform tension regardless of thickness differences. The pulling or braking forces can be regulated continuously over a wide range using the contact pressure of the chain systems. The transferable forces can be significantly increased by using additional chain wheels or support structures within the chain systems.

Die Kettenzieh- und -bremsvorrichtung ist weiterhin überall da sinnvoll einzusetzen, wo in Bandbehandlungslinien die sogenannten S-Rollen-Einheiten verwendet werden. Ein besonderer Vorteil besteht darin, daß der notwendige Bandzug auch bei Vorzug = 0 auf in der Praxis benötigte maximale Bandzüge gebracht werden kann. Streckbiege-Richteinheiten erhalten vor und hinter dem Biegegerüst bis zu 5 Stück S-Rollen, damit die notwendigen Bandzüge aufgebracht werden können. Es ist zweckmäßig jede einzelne S-Rolle mit einem separaten GS-Antrieb bzw. bei einer mechanischen Verkopplung mit einem GS-Ausgleichsantrieb auszustatten. Dies ist notwendig da aufgrund der Fertigungstoleranzen und des ungleichmäßigen Verschleißes der S-Rollen-beschichtungen Relativgeschwindigkeiten vermieden werden müssen. Dies führt zu einem erheblichen Aufwand der mechanischen und elektrischen Ausrüstung sowie zu einem großen Platzbedarf. Bei der Verwendung der von mir vorgeschlagenen Kettenzieh-und -bremsvorrichtung wird nur jeweils ein Gerüst vor und hinter der Streckbiege-Richteinheit notwendig.Es werden nur zwei GS-Antriebe benötigt. In modernen Bandbehandlungsanlagen ist es zweckmäßig vor jeder S-Rolleneinheit eine Bandmitten-Steuereinheit anzuordnen, damit das Band anlagenmittig der S-Rolleneinheit zugeführt wird. Eine besondere Ausführungsform der Kettenzieh- und -bremsvorrichtung sieht vor, daß mittels Schwenkbewegung in der Banddurchlaufebene der rechtwinklige Einlauf des Bandes in die Vorrichtung erreicht wird. Dieser Vorgang kann automatisiert werden. Wird die Kettenzieh- und- bremsvorrichtung vor dem Aufwickelhaspel angeordnet, so ist eine besondere Ausführungsform , daß die Vorrichtung entsprechend dem sich stetig ändernden Einlaufwinkel des einlaufenden Bandes angestellt wird. Diese Anordnung hat den Vorteil, daß der Bandrückzug unmittelbar vor dem Aufwickelhaspel aufgebracht wird.The chain pulling and braking device can still be used wherever the so-called S-roller units are used in belt treatment lines. A particular advantage is that the necessary tape tension can be brought up to the maximum tape tension required in practice, even with preference = 0. Stretch-bending straightening units are provided with up to 5 S-rolls in front of and behind the bending stand so that the necessary strip tension can be applied. It is advisable to equip each individual S-roll with a separate GS drive or, in the case of mechanical coupling, with a GS compensating drive. This is necessary because due to the manufacturing tolerances and the uneven wear of the S-roller coatings, relative speeds have to be avoided. This leads to a considerable expenditure of mechanical and electrical equipment as well as a large space requirement. When using the chain pulling and braking device I have proposed, only one scaffold is required in front of and one behind the stretch bending straightening unit. Only two GS drives are required. In modern strip processing systems, it is advisable to arrange a strip center control unit in front of each S-roll unit so that the strip is fed to the S-roll unit in the center of the system. A special embodiment of the chain pulling and braking device provides that the rectangular entry of the belt into the device is achieved by means of a pivoting movement in the belt pass plane. This process can be automated. If the chain pulling and braking device is arranged in front of the take-up reel, it is a special embodiment that the device is adjusted according to the constantly changing entry angle of the incoming strip. This arrangement has the advantage that the tape retraction is applied immediately before the take-up reel.

In den Zeichnungen ist ein Ausführungsbeispiel einer Spannvorrichtung gemäß der Erfindung dargestellt und zwar zeigen

  • Fig. 1 die schematische Darstellung der Seitenansicht und eines Schnittes entlang der Linie III - III der Fig. 2 einer Kettenzieh- und Bremsvorrichtung mit den erfindungsgemäßen Kettensystemen,
  • Fig. 2 einen Schnitt entlang der Linie I - I der Fig. 1,
  • Fig. 3 einen Schnitt entlang der Linie II - II der Fig. 1,
  • Fig. 4 einen Teilabschnitt der Ketten mit Beschichtung
  • Fig. 4a einen Schnitt entlang der Linie IV - IV der Fig. 4 und
  • Fig.5,5a, eine schematische Darstellung der Fasern in der 5b Beschichtung an verschiedenen Positionen.
In the drawings, an embodiment of a clamping device according to the invention is shown and show
  • 1 is a schematic representation of the side view and a section along the line III - III of FIG. 2 of a chain pulling and braking device with the chain systems according to the invention,
  • 2 shows a section along the line I - I of FIG. 1,
  • 3 shows a section along the line II-II of FIG. 1,
  • Fig. 4 shows a portion of the chains with coating
  • Fig. 4a is a section along the line IV - IV of Fig. 4 and
  • Fig.5.5a, a schematic representation of the fibers in the 5b coating at different positions.

Wird die Kettenzieh- und -bremsvorrichtung in einer Spaltlinie als Bremsgerüst eingesetzt, so würden von einer nicht weiter dargestellten Spaltschere die Schmalbänder über einen Schlingenspeicher mit Umlenkrolle und dann durch die Kettenbremsvorrichtun über eine weitere Umlenkrolle dem Aufwickelhaspel zugeführt werden. Die eigentliche Kettenbremsvorrichtung bleibt bei allen Spaltprogrammen unverändert.If the chain pulling and braking device is used in a gap line as a brake stand, the narrow belts would be fed from a splitting shear, not shown, via a loop storage device with a deflection roller and then through the chain brake device via a further deflection roller to the take-up reel. The actual chain brake device remains unchanged in all gap programs.

Das Kettensystem wird vorzugsweise durch einen Gleichstrommotor mit nachgeschaltetem Kammgetriebe betrieben. Die Bremsmomente werden über die Welle 2 an die Kettenräder 3 und an die Kettensegmente weitergegeben. Die Stützrollen 5 übertragen einmal die Drehmomente und stützen die Segmente 4 im Mitnahmebereich über Führungsleisten 6a mit Stützkurven 6 in Ein- und Auslauf ab und verspannen das Band 1 durch jeweils gegenüberliegende Kettensegmente 4 über die Segmentbeschichtung 7, die als elastischer Belag 11 mit einer Profilierung 12 ausgeführt sein kann. Das untere Kettensystem 4b ist feststehend, während das obere Kettensystem 4a anstellbar ist. Die Anpreßkräfte sind regelbar. Die Vorspannung der Ketten erfolgt mittels Zylinder 8, der ein geführtes Lagergehäuse 9 verschiebt. Die oszillierend drehende Bürste 10 entfernt alle möglichen Verunreinigungen und Anhaftungen der Kontaktflächen. Eine besondere Anwendungsform sieht vor, daß das feststehende Kettensystem.als Schwingenkonstruktion 13 ausgebildet wird. Hiermit wird erreicht ,daß die Kettenzieh- und -bremsvorrichtung entsprechend dem einlaufenden Band auf einen bestimmten Winkel schräggestellt werden kann. Der Steuerrahmen 14 hat die Aufgabe, falls das Band nicht unter 90° auf die Segmente 4 aufläuft, die gesamte Kettenzieh- und -bremsvorrichtung in Bandebene zu verdrehen, bis der rechtwinklige Bandeinlauf wieder hergestellt ist. Eine automatische Regelung ist Stand der Technik.The chain system is preferably operated by a direct current motor with a comb gear connected downstream. The braking torques are passed on via the shaft 2 to the chain wheels 3 and to the chain segments. The support rollers 5 transmit the torques once and support the segments 4 in the driving area via guide strips 6a with support curves 6 in the inlet and outlet and brace the belt 1 by chain segments 4 lying opposite each other over the segment coating 7, which as an elastic covering 11 with a profile 12 can be executed. The lower chain system 4b is fixed, while the upper chain system 4a is adjustable. The contact forces are adjustable. The chains are pretensioned by means of cylinder 8, which displaces a guided bearing housing 9. The oscillating rotating brush 10 removes all possible contaminations and buildup on the contact surfaces. A special application provides that the fixed chain system is designed as a rocker construction 13. This ensures that the chain pulling and braking device can be inclined to a certain angle in accordance with the incoming belt. The control frame 14 has the task, if the tape does not run at 90 ° on the segments 4, to turn the entire chain pulling and braking device in the tape level until the right-angled tape entry is restored. Automatic control is state of the art.

Claims (10)

1. Vorrichtung zum Ziehen oder Bremsen von Metallbändern vorzugsweise in Bandlinien, wobei Relativbewegungen zwischen Metallband und der Kontaktfläche der Kettensysteme vermieden werden, insbesondere gemeinsam aufzuwickelnde Schmalbänder mit bandweise getrennter Bremswirkung, dadurch gekennzeichnet, daß das Metallband (1) zwischen zwei Kettensysteme (4a,4b) parallel eingespannt wird.1. Device for pulling or braking metal strips, preferably in strip lines, relative movements between the metal strip and the contact surface of the chain systems being avoided, in particular narrow strips to be wound up together with band-by-piece braking action, characterized in that the metal strip (1) between two chain systems (4a, 4b ) is clamped in parallel. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kettensegmente (4) der Kettensysteme (4a,4b) Segmentbeschichtungen (7) aufweisen und daß sich die Segmentbeschichtungen (7) der Kettensysteme (4a,4b) gegenüberliegen.2. Device according to claim 1, characterized in that the chain segments (4) of the chain systems (4a, 4b) have segment coatings (7) and that the segment coatings (7) of the chain systems (4a, 4b) are opposite. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß eine unveränderte Lage der sich gegenüberliegenden Segmentbeschichtungen (7) durch eine formschlüssige Antriebsverbindung über Rollen (5) und Führungsleisten (6a) erreicht wird.3. Apparatus according to claim 2, characterized in that an unchanged position of the opposing segment coatings (7) is achieved by a positive drive connection via rollers (5) and guide strips (6a). 4. Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Kettensegmente (4) einen elastischen Belag (11) erhalten.4. Apparatus according to claim 1 to 3, characterized in that the chain segments (4) receive an elastic covering (11). 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der elastische Belag (11) mit einer Profilierung ausgestattet ist.5. The device according to claim 4, characterized in that the elastic covering (11) is equipped with a profile. 6. Vorrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß die Kettensegmente (4) mittels Rolle (5) abgestützt werden.6. Apparatus according to claim 1 to 5, characterized in that the chain segments (4) are supported by means of a roller (5). 7. Vorrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß die Kettensegmente (4) wahlweise mittels Gleitflächen abgestützt werden.7. The device according to claim 1 to 5, characterized in that the chain segments (4) are optionally supported by means of sliding surfaces. 8. Vorrichtung nach Anspruch 1 bis 7, dadurch gekennzeichnet, daß die Führungsleiste (6a) Einlauf- und Auslaufkurven bzw. Schrägen (6) erhält.8. Apparatus according to claim 1 to 7, characterized in that the guide strip uslaufkurven (6a) and inlet A and receives bevels (6). 9. Vorrichtung nach Anspruch 1 bis 8, dadurch gekennzeichnet, daß die Kettenzieh- und -bremsvorrichtung auf einem Steuerrahmen steht.9. The device according to claim 1 to 8, characterized in that the chain pulling and braking device is on a control frame. 10. Vorrichtung nach Anspruch 1 bis 9, dadurch gekennzeichnet, daß die Kettenzieh- und -bremsvorrichtung auf einer Schwingenkonstruktion steht.10. The device according to claim 1 to 9, characterized in that the chain pulling and braking device is on a swing arm construction.
EP83102006A 1982-03-06 1983-03-02 Apparatus for keeping the tension of metal strips at a constant level Expired - Lifetime EP0088347B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83102006T ATE20725T1 (en) 1982-03-06 1983-03-02 CHAIN PULLING AND CHAIN BRAKING DEVICE FOR KEEPING THE TENSIONS OF METAL TAPE CONSTANT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823208158 DE3208158C3 (en) 1982-03-06 1982-03-06 Device for pulling or braking metal strips
DE3208158 1982-03-08

Publications (3)

Publication Number Publication Date
EP0088347A1 true EP0088347A1 (en) 1983-09-14
EP0088347B1 EP0088347B1 (en) 1986-07-16
EP0088347B2 EP0088347B2 (en) 1991-08-28

Family

ID=6157532

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Application Number Title Priority Date Filing Date
EP83102006A Expired - Lifetime EP0088347B2 (en) 1982-03-06 1983-03-02 Apparatus for keeping the tension of metal strips at a constant level

Country Status (4)

Country Link
US (1) US4527723A (en)
EP (1) EP0088347B2 (en)
AT (1) ATE20725T1 (en)
DE (2) DE3208158C3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195096A1 (en) * 1985-03-16 1986-09-24 Norbert Umlauf Device for feeding or braking metal strips
WO2000027554A1 (en) * 1998-11-11 2000-05-18 Norbert Umlauf Driver system for reducing the speed of or dragging metal strips

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3916289A1 (en) * 1989-05-19 1990-11-22 Norbert Umlauf SCAFFOLDING FOR TOWING OR BRAKING TAPES
DE59105526D1 (en) * 1991-01-21 1995-06-22 Ttc Tech Trading Co Improvement in the device for feeding a cable into a cable processing machine.
JP5654948B2 (en) * 2011-05-31 2015-01-14 Ｊｆｅ電制株式会社 Belt non-running detection method and belt non-running detection device for belt bridle device
NL2009150C2 (en) * 2012-07-06 2014-01-07 Itrec Bv Marine pipeline installation tensioner.
DE102016104182B4 (en) 2016-03-08 2017-10-26 Muhr Und Bender Kg Apparatus and method for transporting metallic long material
EP3514089B1 (en) * 2016-09-15 2022-01-26 JDC, Inc. Winding tension applying device for slit strip

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DE2418695A1 (en) * 1973-04-24 1974-11-21 Alfsen & Gunderson DEVICE FOR CONTROLLING THE WIDTH AND TRANSVERSAL TENSION OF MOVING MATERIAL TRAILS
GB2072152A (en) * 1980-12-23 1981-09-30 Japan Dev Consult Strip tensioning means

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US3680342A (en) * 1970-01-26 1972-08-01 Fluor Ocean Services Apparatus for laying pipelines
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AT295974B (en) * 1970-07-20 1972-01-25 Voest Ag Device for braking a sheet metal strip to be wound onto a reel core, preferably cut several times in the longitudinal direction
US3669329A (en) * 1970-11-02 1972-06-13 Western Gear Corp Pipe tensioning unit
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DE2418695A1 (en) * 1973-04-24 1974-11-21 Alfsen & Gunderson DEVICE FOR CONTROLLING THE WIDTH AND TRANSVERSAL TENSION OF MOVING MATERIAL TRAILS
GB2072152A (en) * 1980-12-23 1981-09-30 Japan Dev Consult Strip tensioning means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195096A1 (en) * 1985-03-16 1986-09-24 Norbert Umlauf Device for feeding or braking metal strips
WO2000027554A1 (en) * 1998-11-11 2000-05-18 Norbert Umlauf Driver system for reducing the speed of or dragging metal strips
US6502734B1 (en) * 1998-11-11 2003-01-07 Norbert Umlauf Driver system for reducing the speed of or dragging metal strips
US6585140B2 (en) * 1998-11-11 2003-07-01 Norbert Umlauf Driver system for reducing the speed of or dragging metal strips

Also Published As

Publication number Publication date
DE3208158A1 (en) 1983-09-29
DE3208158C2 (en) 1986-12-04
DE3208158C3 (en) 1993-02-11
ATE20725T1 (en) 1986-08-15
EP0088347B2 (en) 1991-08-28
EP0088347B1 (en) 1986-07-16
US4527723A (en) 1985-07-09
DE3364465D1 (en) 1986-08-21

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