EP0043898A1 - Regulating device for the wrapper rolls of band coilers - Google Patents

Regulating device for the wrapper rolls of band coilers Download PDF

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Publication number
EP0043898A1
EP0043898A1 EP81103319A EP81103319A EP0043898A1 EP 0043898 A1 EP0043898 A1 EP 0043898A1 EP 81103319 A EP81103319 A EP 81103319A EP 81103319 A EP81103319 A EP 81103319A EP 0043898 A1 EP0043898 A1 EP 0043898A1
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EP
European Patent Office
Prior art keywords
pressure
pneumatic
hydraulic cylinder
cylinder
stroke
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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.)
Granted
Application number
EP81103319A
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German (de)
French (fr)
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EP0043898B1 (en
Inventor
Berthold Hild
Martin Braun
Max Münker
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SMS Siemag AG
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SMS Schloemann Siemag AG
Schloemann Siemag AG
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Publication of EP0043898A1 publication Critical patent/EP0043898A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00Winding webs
    • B65H18/08Web-winding mechanisms
    • B65H18/10Mechanisms in which power is applied to web-roll spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02Winding-up or coiling
    • B21C47/04Winding-up or coiling on or in reels or drums, without using a moving guide
    • B21C47/06Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • B21C47/063Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum with pressure rollers only

Definitions

  • the invention relates to an actuating device for the pressure rollers and / or deflection shells of reels, in particular underfloor reels, in hot strip mills, in which each, for example by a Genlenk square, supported and guided roller and / or shell support for closing and opening the pressure roller unit relative to Has p eldorn can be operated by a combined pneumatic hydraulic actuator.
  • Belt reel, especially underfloor reel, in hot strip mills are equipped with a pressure roller unit, which usually comprises three or four pressure rollers and / or deflection shells, each of which has its own adjusting device.
  • a large-volume pneumatic cylinder is usually used to actuate each adjusting device when the pressure rollers and / or deflection shells are turned on and swiveled away.
  • hydraulic shock absorber cylinders have been used for actuating devices for the pressure rollers and / or deflection shells of underfloor reels, which to a certain extent are combined pneumatics - Form hydraulic actuator.
  • hydraulic shock absorber cylinders differ from an ordinary hydraulic cylinder in that they contain a piston-shaped accumulator in their piston rod. Sealed nitrogen gas is located behind one side of the accumulator piston movable in the piston rod, while the other side of the accumulator piston can be acted upon by the hydraulic pressure acting on one side of the working piston displaceable in the hydraulic cylinder.
  • the relevant side of the piston displaceable in the hydraulic cylinder is pressurized with hydraulic fluid, the accumulator piston within the piston rod is brought into a position in which the pressure of the hydraulic fluid and the pressure of the nitrogen gas are balanced.
  • the purpose of the invention is to remedy this defect. It is therefore the goal of her to create an actuating device of the generic type with which not only the positioning of the pressure rollers against the coiler mandrel before the entry of the strip start and the pivoting of the same after the strip entry securely enables, but also for the pivoting of the pressure rollers the circumference of the bundle before the end of the band allows a pre-positioning during the winding phase of the band, that the remaining stroke for applying the rollers is carried out at a reduced speed, and thus their impact energy against the belt bundle can be limited to a minimum.
  • this object is basically achieved by the characterizing features of the first claim.
  • an actuating device designed in this way is that all the primary movement sequences are carried out by the hydraulic cylinders and therefore the hydraulic fluid allows an adjustable, constant actuating speed by means of an adapted control, regardless of the load changes.
  • the pneumatic cylinder In the applied state of the pressure rollers, while the tape is running in, the pneumatic cylinder is - as before - in operation, whereby it causes an approximately constant spring rate because, due to the high compressibility of the air and the large volume connected downstream, there is no noticeable increase in force on the cylinder when the pressure rollers are displaced .
  • a further feature of the actuating device, which is essential to the invention, is specified in the second claim. This not only creates a minimal overall length for the pressure cylinder, but also ensures that the primary actuating movements are carried out exclusively by the hydraulic cylinder and that the specified spring rate of the pneumatic cylinder is maintained in any case.
  • the mandrel 1 of an underfloor reel is assigned a pressure roller 2 and a deflection shell 3, which are seated on a common roller and / or shell carrier 4.
  • the roller and / or neck holder 4 is supported and guided by a four-bar linkage 5, the two rocking levers 6 and 7 of which are mounted in a fixed frame 8 such that they can be pivoted to a limited extent about the axes 9 and 10.
  • the piston rod 12 of a pneumatic hydraulic actuating device 13 engages on the rocker arm 6 via an arm 11, which in turn is supported on a bracket 14 of the stationary frame 8.
  • the pneumatic hydraulic actuator 13 in turn consists of a pneumatic cylinder 15, in the cylinder housing 16 of which a plunger 17 is seated, which has a limited stroke path 18 of relatively short length.
  • the plunger 17 is designed as a relatively large-volume hollow piston and is in permanent communication with the pressure chamber 20 of the cylinder housing 16 via at least one passage 19 in the piston crown.
  • the pneumatic cylinder 15 has a considerable volume of air, which ensures an approximately constant spring rate over the maximum stroke path 18 of the plunger 17.
  • the plunger 17 of the pneumatic cylinder 15 is supported in its extended position, as can be seen in the drawing.
  • a double-acting hydraulic cylinder 22 is formed within the plunger 17 and a piston rod-like extension 21 adjoining it upward a line 26 can be connected to this pressure fluid supply source.
  • the differential piston 27 of the hydraulic cylinder 22 is fixedly connected to the piston rod 12.
  • the differential piston 27 By applying pressure fluid to the pressure chamber 23 of the hydraulic cylinder 22, the differential piston 27 is moved upward within the plunger piston 17 or its extension 21 and the piston rod 12 is thus moved upwards.
  • the pressure roller 2 and the deflection shell 3 are thus set against the circumference of the winding mandrel 1 via the four-bar linkage 5 and the roller and / or shell carrier 4.
  • the feed speed for the pressure fluid into the pressure chamber 23 the setting speed for the pressure roller 2 and the deflection shell 3 can be controlled as desired.
  • the contact pressure of the pressure roller 2 against the winding mandrel 1 can also be regulated.
  • Each set position of the differential piston 27 can be fixed in that hydraulic fluid is also present in the pressure chamber 25 of the hydraulic cylinder 22 and thus fixes the differential piston 27 in the respective position and dampens the movements of the piston rod 12.
  • This mode of operation is particularly important in the event that the pressure roller 2 and / or the deflection shell 3 is to be placed in a preposition during the winding phase of the coil before the end of the tape enters the underfloor reel, from which the remaining stroke for applying the pressure roller 2 or deflecting shell 3 is carried out against the circumference of the collar at a lower feed speed in order to limit the impact energy to the circumference of the belt collar to a minimum and to avoid damage to the belt.
  • the pressure chamber 23 of the hydraulic cylinder 22 is relieved of the pressure fluid and, on the other hand, pressure fluid is guided through the line 26 into the pressure chamber 25. This will make the differential piston 27 pushed downward, so that the four-bar linkage 5 of the roller and shell carrier 4 with the pressure roller '2 and the deflection shell 3 moves away from the winding mandrel 1 via the piston rod 12.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding Of Webs (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)

Abstract

Die Stellvorrichtung für die Andrückrollen (2) und/oder Umlenkschalen (3) von Bandhaspeln (1), insbesondere Unterflurhaspeln, in Warmbandstraßen hat, bspw. von einem Gelenkviereck (5), gestützte und geführte Rollen- und/oder Schalenträger (4), die für das Schließen und Öffnen des Andrückrollen-Aggregates relativ zum Wickeldorn (1) durch ein kombiniertes Pneumatik-Hydraulikstellgerät (13) betätigbar sind. Die Stellvorrichtung ist dabei so ausgelegt, daß mit ihrer Hilfe einerseits das Anstellen der Andrückrollen (2) gegen den Haspeldorn (1) vor dem Einlauf des Bandanfangs sowie das Abschwenken derselben nach dem Bandeinlauf sicher möglich ist, daß sie andererseits aber auch für das Anschwenken der Andrückrollen (2) an den Bundumfang vor dem Einlauf des Bandendes zunächst eine Vorpositionierung noch während der Wickelphase des Bandbundes in der Weise zuläßt, daß der Resthub zum Anlegen der Rollen (2) mit verringerter Geschwindigkeit durchgeführt und damit deren Aufprallenergie gegen den Bandbund auf ein Mindestmaß beschränkt wird. Hierzu besteht das Pneumatik-Hydraulikstellgerät aus einem in seinem Hubweg (18) begrenzten Pneumatikzylinder (15) und einem in dessen Plungerkolben (17) und/oder Kolbenstange (21) untergebrachten Hydraulikzylinder (22). Die Kolbenstange (12) des Hydraulikzylinders (22) greift dabei an den Stütz- und Führungsorganen (5,6,7) des Rollen- und/oder Schalenträgers (4) über einen Hebelarm (11) an und ferner ist die Druckmittelbeaufschlagung des Pneumatikzylinders (15) und des Hydraulikzylinders (22) unabhängig steuerbar.The adjusting device for the pressure rollers (2) and / or deflection shells (3) of coil reels (1), in particular underfloor reels, in hot strip mills, for example of a quadrilateral joint (5), has supported and guided roller and / or shell supports (4), which can be actuated for the closing and opening of the pressure roller unit relative to the winding mandrel (1) by a combined pneumatic hydraulic actuator (13). The adjusting device is designed so that with the help of the pressure rollers (2) against the reel mandrel (1) on the one hand before the start of the strip start and the swiveling of the same after the strip entry is possible on the one hand, but on the other hand for the pivoting of the Pressure rollers (2) on the circumference of the bundle before the end of the band initially allows pre-positioning during the winding phase of the band bundle in such a way that the remaining stroke for applying the rolls (2) is carried out at a reduced speed and thus their impact energy against the band bundle to a minimum is restricted. For this purpose, the pneumatic hydraulic actuator consists of a pneumatic cylinder (15) limited in its stroke (18) and a hydraulic cylinder (22) accommodated in its plunger (17) and / or piston rod (21). The piston rod (12) of the hydraulic cylinder (22) acts on the support and guide elements (5, 6, 7) of the roller and / or shell support (4) via a lever arm (11) and the pressure medium applied to the pneumatic cylinder ( 15) and the hydraulic cylinder (22) can be controlled independently.

Description

Die Erfindung betrifft eine Stellvorrichtung für die Andrückrollen und/oder Umlenkschalen von Bandhaspeln, insbesondere Unterflurhaspeln, in Warmbandstraßen, bei welcher jeder, beispielsweise von einem Genlenkviereck, gestützte und geführte Rollen- und/oder Schalenträger für das Schließen und Öffnen des Andrückrollen-Aggregates relativ zum Haspeldorn durch ein kombiniertes Pneumatik-Hydraulikstellgerät betätigbar ist.The invention relates to an actuating device for the pressure rollers and / or deflection shells of reels, in particular underfloor reels, in hot strip mills, in which each, for example by a Genlenk square, supported and guided roller and / or shell support for closing and opening the pressure roller unit relative to Has p eldorn can be operated by a combined pneumatic hydraulic actuator.

Bandhaspel, insbesondere Unterflurhaspel, in Warmbandstraßen sind mit einem Andrückrollen-Aggregat ausgestattet, welches in der Regel drei oder vier Andrückrollen und/oder Umlenkschalen umfaßt, von denen jede eine eigene Stellvorrichtung aufweist. Zum Betätigen jeder Stellvorrichtung beim Anstellen und Abschwenken der Andrückrollen und/oder Umlenkschalen dient dabei üblicherweise ein großvolumiger Pneumatikzylinder.Belt reel, especially underfloor reel, in hot strip mills are equipped with a pressure roller unit, which usually comprises three or four pressure rollers and / or deflection shells, each of which has its own adjusting device. A large-volume pneumatic cylinder is usually used to actuate each adjusting device when the pressure rollers and / or deflection shells are turned on and swiveled away.

Die praktische Erfahrung hat aber gezeigt, daß die Betriebscharakteristik der großvolumigen Pneumatikzylinder sich vor allem dann nachteilig auswirkt, wenn die Andrückrollen und/oder Umlenkschalen angelegt oder abgeschwenkt werden sollen.Practical experience has shown, however, that the operating characteristics of the large-volume pneumatic cylinders have a disadvantageous effect especially when the pressure rollers and / or deflection shells are to be applied or pivoted away.

Wie aus "Technical Review", Februar 1978, der Mitsubishi Heavy Industries Limited, S. 1-10, hervorgeht, wurden deshalb bei Stellvorrichtungen für die Andrückrollen und/oder Umlenkschalen von Unterflurhaspeln versuchsweise schon hydraulische Stoßdämpferzylinder zum Einsatz gebracht, die gewissermaßen ein kombiniertes Pneumatik-Hydraulikstellgerät bilden.As can be seen from "Technical Review", February 1978, of Mitsubishi Heavy Industries Limited, pp. 1-10, hydraulic shock absorber cylinders have been used for actuating devices for the pressure rollers and / or deflection shells of underfloor reels, which to a certain extent are combined pneumatics - Form hydraulic actuator.

Diese hydraulischen Stoßdämpferzylinder unterscheiden sich von einem gewöhnlichen Hydraulikzylinder dadurch, daß sie in ihrer Kolbenstange einen kolbenförmigen Akkumulator enthalten. Hinter der einen Seite des in der Kolbenstange beweglichen Akkumulatorkolbens befindet sich dabei abgedichtetes Stickstoffgas, während die andere Seite des Akkumulatorkolbens von dem auf die eine Seite des im Hydraulikzylinder verschiebbaren Arbeitskolbens wirkenden Hydraulikdruck beaufschlagt werden kann. Bei der Beaufschlagung der betreffenden Seite des im Hydraulikzylinder verschiebbaren Kolbens mit Druckflüssigkeit wird dann der Akkumulatorkolben innerhalb der Kolbenstange in eine Stellung gebracht, in welcher der Druck der Hydraulikflüssigkeit und der Druck des Stickstoffgases ausgeglichen sind.These hydraulic shock absorber cylinders differ from an ordinary hydraulic cylinder in that they contain a piston-shaped accumulator in their piston rod. Sealed nitrogen gas is located behind one side of the accumulator piston movable in the piston rod, while the other side of the accumulator piston can be acted upon by the hydraulic pressure acting on one side of the working piston displaceable in the hydraulic cylinder. When the relevant side of the piston displaceable in the hydraulic cylinder is pressurized with hydraulic fluid, the accumulator piston within the piston rod is brought into a position in which the pressure of the hydraulic fluid and the pressure of the nitrogen gas are balanced.

Die Benutzung dieser hydraulischen Stoßdämpferzylinder zur Betätigung der Stellvorrichtungen für die Andrückrollen und/oder Umlenkschalen von Bandhaspeln hat zwar im gewissen Umfang zu einer Reduzierung der aus dem Zusammenwirken von Andrückrollen und Bandbundumfang resultierenden Beanspruchungen während des Haspelbetriebes geführt und auch eine schnellere Voreinstellung der Andrückrollen durch Reduzieren der Entfernung zum Bandbundumfang ermöglicht. Die optimale Funktion dieser hydraulischen Stoßdämpferzylinder wird jedoch dadurch beeinträchtigt, daß die Betriebscharakteristik des Stickstoff-Akkumulators in direkter Abhängigkeit vom jeweiligen Arbeitsdruck der dem Hydraulikzylinder zugeführten Druckflüssigkeit steht. Die Federrate des Stickstoff-Akkumulators wird daher durch den jeweiligen Arbeitsdruck der Hydraulikflüssigkeit bestimmt und kann nicht frei gewählt werden.The use of these hydraulic shock absorber cylinders for actuating the actuating devices for the pressure rollers and / or deflection shells of tape reels has to a certain extent reduced the stresses resulting from the interaction of pressure rollers and the volume of the coil during the reel operation and also a faster presetting of the pressure rollers by reducing the Allows distance to the waistband. The optimal function of these hydraulic shock absorber cylinders is, however, impaired by the fact that the operating characteristic of the nitrogen accumulator is directly dependent on the respective working pressure of the hydraulic fluid supplied to the hydraulic cylinder. The spring rate of the nitrogen accumulator is therefore determined by the respective working pressure of the hydraulic fluid and cannot be chosen freely.

Die Erfindung bezweckt die Beseitigung dieses Mangels. Es ist ihr daher das Ziel gesetzt, eine Stellvorrichtung der gattungsgemäßen Art zu schaffen, mit der nicht nur das Anstellen der Andrückrollen gegen den Haspeldorn vor dem Einlauf des Bandanfanges sowie das Abschwenken derselben nach dem Bandeinlauf sicher ermöglicht, sondern auch für das Anschwenken der Andrückrollen an den Bundumfang vor dem Einlauf des Bandendes zunächst eine Vorpositionierung noch während der Wickelphase des Bandbundes in der Weise zuläßt, daß der Resthub zum Anlegen der Rollen mit verringerter Geschwindigkeit durchgeführt und damit deren Aufprallenergie gegen den Bandbund auf ein Mindestmaß beschränkt werden kann.The purpose of the invention is to remedy this defect. It is therefore the goal of her to create an actuating device of the generic type with which not only the positioning of the pressure rollers against the coiler mandrel before the entry of the strip start and the pivoting of the same after the strip entry securely enables, but also for the pivoting of the pressure rollers the circumference of the bundle before the end of the band allows a pre-positioning during the winding phase of the band, that the remaining stroke for applying the rollers is carried out at a reduced speed, and thus their impact energy against the belt bundle can be limited to a minimum.

Die Lösung dieser Aufgabe wird nach der Erfindung grundsätzlich durch die Kennzeichnungsmerkmale des ersten Anspruchs erreicht.According to the invention, this object is basically achieved by the characterizing features of the first claim.

Der besondere Vorteil einer solchermaßen ausgebildeten Stellvorrichtung liegt darin, daß sämtliche Primär-Bewegungsabläufe durch die Hydraulikzylinder ausgeführt werden und daher die Hydraulikflüssigkeit mittels einer angepaßten Steuerung eine justierbare konstante Stellgeschwindigkeit, unabhängig von den Lastveränderungen, erlaubt. Im angelegten Zustand der Andrückrollen, während des Bandeinlaufes, ist der Pneumatikzylinder - wie bisher - in Funktion, wobei er eine annähernd konstante Federrate bewirkt, weil infolge der hohen Kompressibilität der Luft und des nachgeschalteten großen Volumens kein merkbarer Kraftanstieg am Zylinder beim Verdrängen der Andrückrollen erfolgt.The particular advantage of an actuating device designed in this way is that all the primary movement sequences are carried out by the hydraulic cylinders and therefore the hydraulic fluid allows an adjustable, constant actuating speed by means of an adapted control, regardless of the load changes. In the applied state of the pressure rollers, while the tape is running in, the pneumatic cylinder is - as before - in operation, whereby it causes an approximately constant spring rate because, due to the high compressibility of the air and the large volume connected downstream, there is no noticeable increase in force on the cylinder when the pressure rollers are displaced .

Ein weiteres, erfindungswesentliches Ausgestaltungsmerkmal der Stellvorrichtung ist dabei im zweiten Anspruch angegeben. Es wird hierdurch nicht nur eine minimale Baulänge für die Druckmittelzylinder geschaffen, sondern zugleich auch gewährleistet, daß die primären Stellbewegungen ausschließlich vom Hydraulikzylinder ausgeführt werden und in jedem Falle die vorgegebene Federrate des Pneumatikzylinders erhalten bleibt.A further feature of the actuating device, which is essential to the invention, is specified in the second claim. This not only creates a minimal overall length for the pressure cylinder, but also ensures that the primary actuating movements are carried out exclusively by the hydraulic cylinder and that the specified spring rate of the pneumatic cylinder is maintained in any case.

Andere, vorteilhafte Ausgestaltungsmerkmale sind in den Ansprüchen 3 bis 5 aufgezeigt.Other advantageous design features are set out in claims 3 to 5.

In der einzigen Figur der Zeichnung ist in Seitenansicht und teilweise im Schnitt die Stellvorrichtung für eine einzelne Andrückrolle und/oder eine einzelne Umlenkschale in Zuordnung zum Wickeldorn eines Unterflurhaspels gezeigt, wobei an einem den Rollen- und/oder Schalenträger stützenden und führenden Gelenkviereck ein erfindungsgemäßes Pneumatik-Hydraulikstellgerät angreift.In the single figure of the drawing is a side view, partly in section, the positioning device for a single pressure roller and / or a single deflecting shell in association with the winding mandrel a Unterflurhas p els shown, supporting the wheel and / or the pan support at one end and leading Quadrangle attacks a pneumatic hydraulic actuator according to the invention.

In der Zeichnung sind dem Wickeldorn 1 eines Unterflurhaspels eine Andrückrolle 2 und eine Umlenkschale 3 zugeordnet, die an einem gemeinsamen Rollen- und/oder Schalenträger 4 sitzen. Der Rollen- und/oder SChalenträger 4 wird dabei von einem Gelenkviereck 5 gestützt und geführt, dessen beide Schwinghebel 6 und 7 in einem ortsfesten Gestell 8 um die Achsen 9 und 10 begrenzt schwenkbar gelagert sind. Am Schwinghebel 6 greift dabei über einen Arm 11 die Kolbenstange 12 eines Pneumatik-Hydraulikstellgerätes 13 an, welches sich wiederum an einem Ausleger 14 des ortsfesten Gestelles 8 abstützt. Das Pneumatik-Hydraulikstellgerät 13 besteht wiederum aus einem Pneumatikzylinder 15, in dessen Zylindergehäuse 16 ein Plungerkolben 17 sitzt, der einen begrenzten Hubweg 18 verhältnismäßig geringer Länge hat.In the drawing, the mandrel 1 of an underfloor reel is assigned a pressure roller 2 and a deflection shell 3, which are seated on a common roller and / or shell carrier 4. The roller and / or neck holder 4 is supported and guided by a four-bar linkage 5, the two rocking levers 6 and 7 of which are mounted in a fixed frame 8 such that they can be pivoted to a limited extent about the axes 9 and 10. The piston rod 12 of a pneumatic hydraulic actuating device 13 engages on the rocker arm 6 via an arm 11, which in turn is supported on a bracket 14 of the stationary frame 8. The pneumatic hydraulic actuator 13 in turn consists of a pneumatic cylinder 15, in the cylinder housing 16 of which a plunger 17 is seated, which has a limited stroke path 18 of relatively short length.

Der Plungerkolben 17 ist als relativ großvolumiger Hohlkolben ausgeführt und steht über mindestens einen Durchlaß 19 im Kolbenboden mit dem Druckraum 20 des Zylindergehäuses 16 in Dauerverbindung. Damit weist der Pneumatikzylinder 15 trotz eines verhältnismäßig kleinen Druckraumes 20 ein beträchtliches Luftvolumen auf, welches über den maximalen Hubweg 18 des Plungerkolbens 17 hinweg eine annähernd konstante Federrate gewährleistet.The plunger 17 is designed as a relatively large-volume hollow piston and is in permanent communication with the pressure chamber 20 of the cylinder housing 16 via at least one passage 19 in the piston crown. Thus, despite a relatively small pressure chamber 20, the pneumatic cylinder 15 has a considerable volume of air, which ensures an approximately constant spring rate over the maximum stroke path 18 of the plunger 17.

Durch den im Druckraum 20 anstehenden Luftdruck wird der Plungerkolben 17 des Pneumatikzylinders 15 in seiner - aus der Zeichnung ersichtlichen- ausgefahrenen Stellung abgestützt.Due to the air pressure in the pressure chamber 20, the plunger 17 of the pneumatic cylinder 15 is supported in its extended position, as can be seen in the drawing.

Innerhalb des Plungerkolbens 17 und einer sich nach oben an diesen anschließende, kolbenstangenartige Verlängerung 21 ist ein doppelt wirkender Hydraulikzylinder 22 ausgebildet, dessen Druckraum 23 über eine Leitung 24 mit der Druckflüssigkeits-Lieferquelle verbindbar ist, während sein Druckraum 25 über eine Leitung 26 an diese Druckflüssigkeits-Lieferquelle angeschlossen werden kann. Der Differentialkolben 27 des Hydraulikzylinders 22 ist fest mit der Kolbenstange 12 verbunden.A double-acting hydraulic cylinder 22 is formed within the plunger 17 and a piston rod-like extension 21 adjoining it upward a line 26 can be connected to this pressure fluid supply source. The differential piston 27 of the hydraulic cylinder 22 is fixedly connected to the piston rod 12.

Durch Beaufschlagung des Druckraumes 23 des Hydraulikzylinders 22 mit Druckflüssigkeit wird der Differentialkolben 27 innerhalb des Plungerkolbens 17 bzw. dessen Verlängerung 21 nach oben gefahren und damit die Kolbenstange 12 aufwärts bewegt. Über das Gelenkviereck 5 sowie den Rollen- und/oder Schalenträger 4 werden damit die Andrückrolle 2 und die Umlenkschale 3 gegen den Umfang des Wickeldorns 1 angestellt. Durch Regelung der Zulaufgeschwindigkeit für die Druckflüssigkeit in den Druckraum 23 kann die Anstellgeschwindigkeit für die Andrückrolle 2 und die Umlenkschale 3 beliebig gesteuert werden. Durch Druckregelung der Hydraulikflüssigkeit läßt sich andererseits auch der Anpreßdruck der Andrückrolle 2 gegen den Wickeldorn 1 regeln. Jede eingestellte Position des Differentialkolbens 27 kann dadurch fixiert werden, daß Hydraulikflüssigkeit auch im Druckraum 25 des Hydraulikzylinders 22 ansteht und so den Differentialkolben 27 in der jeweiligen Position fixiert und die Bewegungen der Kolbenstange 12 dämpft.By applying pressure fluid to the pressure chamber 23 of the hydraulic cylinder 22, the differential piston 27 is moved upward within the plunger piston 17 or its extension 21 and the piston rod 12 is thus moved upwards. The pressure roller 2 and the deflection shell 3 are thus set against the circumference of the winding mandrel 1 via the four-bar linkage 5 and the roller and / or shell carrier 4. By regulating the feed speed for the pressure fluid into the pressure chamber 23, the setting speed for the pressure roller 2 and the deflection shell 3 can be controlled as desired. By regulating the pressure of the hydraulic fluid, on the other hand, the contact pressure of the pressure roller 2 against the winding mandrel 1 can also be regulated. Each set position of the differential piston 27 can be fixed in that hydraulic fluid is also present in the pressure chamber 25 of the hydraulic cylinder 22 and thus fixes the differential piston 27 in the respective position and dampens the movements of the piston rod 12.

Diese Wirkungsweise ist besonders für den Fall wichtig, daß vor dem Einlaufen des Bandendes in den Unterflurhaspel die Andrückrolle 2 und/oder die Umlenkschale 3 schon während der Wickelphase des Bandbundes in eine Vorposition gestellt werden soll, aus welcher dann der Resthub zum Anlegen der Andrückrolle 2 bzw. Umlenkschale 3 gegen den Bundumfang mit geringerer Vorschubgeschwindigkeit durchgeführt wird, um die Aufprallenergie auf den Umfang des Bandbundes auf ein Mindestmaß zu beschränken und Bandbeschädigungen zu vermeiden.This mode of operation is particularly important in the event that the pressure roller 2 and / or the deflection shell 3 is to be placed in a preposition during the winding phase of the coil before the end of the tape enters the underfloor reel, from which the remaining stroke for applying the pressure roller 2 or deflecting shell 3 is carried out against the circumference of the collar at a lower feed speed in order to limit the impact energy to the circumference of the belt collar to a minimum and to avoid damage to the belt.

Zum Abschwenken der Andrückrolle 2 und der Umlenkschale 3 vom Wickeldorn 1 nach erfolgtem Bandeinlauf wird der Druckraum 23 des Hydraulikzylinders 22 von der Druckflüssigkeit entlastet und andererseits Druckflüssigkeit durch die Leitung 26 in den Druckraum 25 geführt. Hierdurch wird der Differentialkolben 27 nach unten geschoben, so daß über die Kolbenstange 12 das Gelenkviereck 5 der Rollen- und Schalenträger 4 sich mit der Andrückrolle '2 und der Umlenkschale 3 vom Wickeldorn 1 wegbewegt.To pivot the pressure roller 2 and the deflection shell 3 from the winding mandrel 1 after the tape has been fed in, the pressure chamber 23 of the hydraulic cylinder 22 is relieved of the pressure fluid and, on the other hand, pressure fluid is guided through the line 26 into the pressure chamber 25. This will make the differential piston 27 pushed downward, so that the four-bar linkage 5 of the roller and shell carrier 4 with the pressure roller '2 and the deflection shell 3 moves away from the winding mandrel 1 via the piston rod 12.

Ausweichbewegungen der Andrückrolle 2 und der Umlenkschale 3 relativ zum Wickeldorn 1, welche sich immer dann zwangsläufig ergeben, wenn entweder beim Beginn des Wickelvorgangs die Überlappung des Bandanfangs oder aber bei Beendigung des Wickelvorgangs das Bandende unter ihnen hindurchläuft, werden ausschließlich vom Pneumatikzylinder 15 aufgenommen. Die sich hierbei ergebenden momentanen Beschleunigungen wirken nämlich über den Rollen- und Schalenträger 4, das Gelenkviereck 5 und die Kolbenstange 12 auf den Plungerkolben 17 zurück, so daß sich dieser aus seiner ausgefahrenen Stellung gegen den im Druckraum 20 anstehenden Luftdruck elastisch rückwärts verschiebt. Wegen des relativ großen Luftvolumens innerhalb des Druckraumes 20 und des damit korrespondierenden Hohlraums des Plungerkolbens 17 bleibt dabei wegen der hohen Kompressibilität der Luft eine annähernd konstante Federrate erhalten. Wichtig ist, daß der Luftdruck im Pneumatikzylinder 15 völlig unabhängig vom Arbeitsdruck des Hydraulikzylinders 22 eingestellt und geregelt werden kann, so daß die jeweilige Federrate des Pneumatikzylinders 15 sich bedarfsweise einstellen läßt.Evasive movements of the pressure roller 2 and the deflection shell 3 relative to the winding mandrel 1, which inevitably occur when either the beginning of the winding process overlaps the beginning of the tape or when the winding process ends, the end of the tape passes underneath them, are absorbed exclusively by the pneumatic cylinder 15. The resulting instantaneous accelerations act back on the plunger 17 via the roller and shell support 4, the four-bar linkage 5 and the piston rod 12, so that it moves elastically backwards from its extended position against the air pressure in the pressure chamber 20. Because of the relatively large volume of air within the pressure chamber 20 and the corresponding cavity of the plunger 17, an approximately constant spring rate is maintained due to the high compressibility of the air. It is important that the air pressure in the pneumatic cylinder 15 can be set and controlled completely independently of the working pressure of the hydraulic cylinder 22, so that the respective spring rate of the pneumatic cylinder 15 can be set as required.

Von Vorteil ist es, daß der Luftverbrauch des Pneumatikzylinders 15 auf Leckageverluste, Druckeinstellungen und gelegentliches Bewegen begrenzt ist, so daß ein wirtschaftlicher Betrieb sichergestellt werden kann.It is advantageous that the air consumption of the pneumatic cylinder 15 is limited to leakage losses, pressure settings and occasional movement, so that economical operation can be ensured.

Es ist möglich, den Hydraulikzylinder 22 ein sogenanntes Doppelbremsventil zuzuordnen, welches sich für beide Lastrichtungen eignet und dabei als Halteventil dient. Außerdem kann es als Druckbegrenzer für die Hydraulikschläuche dienen und zum gleichmäßigen, rückfreien Bewegen der Umlenkschale 3 bei über den Hub veränderlicher reduzierter Masse und statischer Hebekraft sowie unterschiedlicher erforderlicher Haltekraft beim Anwickeln des Bandes benutzt werden.It is possible to assign a so-called double brake valve to the hydraulic cylinder 22, which is suitable for both load directions and serves as a holding valve. In addition, it can serve as a pressure limiter for the hydraulic hoses and for moving the deflection shell 3 smoothly and without backing can be used over the stroke of variable reduced mass and static lifting force and different required holding force when winding the tape.

Claims (5)

1. Stellvorrichtung fpr die Andrückrollen und/oder Umlenkschalen von Bandhaspeln, insbesondere Unterflurhaspeln, in Warmbandstraßen, bei welcher jeder, bspw. von einem Gelenkviereck, gestützte und geführte Rollen-und/oder Schalenträger für das Schließen und öffnen des Andrückrollen-Aggregates relativ zum Wickeldorn durch ein kombiniertes Pneumatik-Hydraulikstellgerät betätigbar ist,
dadurch gekennzeichnet,
daß das Pneumatik-Hydraulikstellgerät (13) aus einem hubwegbegrenzten (1.8) Pneumatikzylinder (15) und einem in dessen Plungerkolben (17) und/oder Kolbenstange (21) untergebrachten Hydraulikzylinder (22) besteht, wobei die Kolbenstange (12) des Hydraulikzylinders (22) an den Stütz- und Führungsorganen (5,6,7) des Rollen- und/oder Schalenträgers (4) angreift (11) und wobei die Druckmittelbeaufschlagung des Pneumatikzylinders &15) und des Hydraulikzylinders (22) unabhängig steuerbar ist.
1. Adjusting device for the pressure rollers and / or deflection shells of tape reels, in particular underfloor reels, in hot strip mills, in which each, for example by a four-bar linkage, supports and guides roller and / or shell supports for closing and opening the pressure roller unit relative to the winding mandrel can be operated by a combined pneumatic-hydraulic actuator,
characterized,
that the pneumatic hydraulic actuator (13) consists of a stroke-limited (1.8) pneumatic cylinder (15) and a hydraulic cylinder (22) accommodated in its plunger piston (17) and / or piston rod (21), the piston rod (12) of the hydraulic cylinder (22 ) engages (11) on the support and guide elements (5, 6, 7) of the roller and / or shell support (4) and the pressure medium applied to the pneumatic cylinder & 15) and the hydraulic cylinder (22) can be controlled independently.
2. Stellvorrichtung nach Anspruch 1,
dadurch gekennzeichnet ,
daß der Hubweg (18) des Pneumatikzylinders (15) auf den maximalen Ausweichhub für die Andrückrollen (2) und/oder Umlenkschalen (3) begrenzt und der Plungerkolben (17) desselben durch die Druckluft in der ausgefahrenen Stellung abgestützt ist.
2. Actuator according to claim 1,
characterized ,
that the stroke (18) of the pneumatic cylinder (15) is limited to the maximum evasive stroke for the pressure rollers (2) and / or deflection shells (3) and the plunger (17) is supported by the compressed air in the extended position.
3. Stellvorrichtung nach einem der Ansprüche 1 und 2,
dadurch gekennzeichnet,
daß der Plungerkolben (17) des Pneumatikzylinders (15) als Hohlkolben ausgeführt ist und sein den Hydraulikzylinder (22) umgebender Hohlraum mit dem Druckraum (20) des Pneumatikzylinders (15) in Dauerverbindung steht (19).
3. Adjusting device according to one of claims 1 and 2,
characterized,
that the plunger (17) of the pneumatic cylinder (15) is designed as a hollow piston and its cavity surrounding the hydraulic cylinder (22) is in permanent connection with the pressure chamber (20) of the pneumatic cylinder (15) (19).
4. Stellvorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß der Arbeitshub des Hydraulikzylinders (22) größer als der begrenzte Hubweg (18) des Pneumatikzylinders (15) ist und mindestens der Länge des Plungerkolbens (17) entspricht.
4. Adjusting device according to one of claims 1 to 3,
characterized,
that the working stroke of the hydraulic cylinder (22) is greater than the limited stroke (18) of the pneumatic cylinder (15) and corresponds at least to the length of the plunger (17).
5. Stellvorrichtung nach einem derAnsprüche 1 bis 4,
dadurch gekennzeichnet,
daß-der Kolben (27) des Hydraulikzylinders (22) als Differentialkolben ausgebildet ist und zwei Druckräume (23 und 25) begrenzt.
5. Adjusting device according to one of claims 1 to 4,
characterized,
that the piston (27) of the hydraulic cylinder (22) is designed as a differential piston and delimits two pressure chambers (23 and 25).
EP81103319A 1980-07-12 1981-05-02 Regulating device for the wrapper rolls of band coilers Expired EP0043898B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803026524 DE3026524A1 (en) 1980-07-12 1980-07-12 SETTING DEVICE FOR THE PRESSURE REELS AND / OR DEFLECTOR SHELLS OF TAPE REELS, ESPECIALLY UNDERFLOOR REELS
DE3026524 1980-07-12

Publications (2)

Publication Number Publication Date
EP0043898A1 true EP0043898A1 (en) 1982-01-20
EP0043898B1 EP0043898B1 (en) 1983-11-16

Family

ID=6107079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103319A Expired EP0043898B1 (en) 1980-07-12 1981-05-02 Regulating device for the wrapper rolls of band coilers

Country Status (4)

Country Link
US (1) US4404831A (en)
EP (1) EP0043898B1 (en)
JP (1) JPS5747528A (en)
DE (2) DE3026524A1 (en)

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CN106391750A (en) * 2016-10-26 2017-02-15 安徽新荣钢构有限公司 Rail-mounted metal sheet rolling-up device

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US4530224A (en) * 1980-07-12 1985-07-23 Sms Schloemann-Siemag Ag Strip-guide assembly for a metal strip coiler
DE3307840A1 (en) * 1983-03-05 1984-09-06 SMS Schloemann-Siemag AG, 4000 Düsseldorf SETTING DEVICE FOR THE PRESSURE REELS AND / OR DEFLECTOR SHELLS OF REELS, ESPECIALLY UNDERFLOOR REELS
DE29610197U1 (en) * 1996-06-13 1997-10-16 Beloit Technologies, Inc., Wilmington, Del. Load roller arrangement for winding machines
GB9715358D0 (en) * 1997-07-21 1997-09-24 Kvaerner Clecim Cont Casting Method of shearing and guiding metal strip and apparatus therefor
US5957404A (en) * 1998-04-20 1999-09-28 Kvaerner Metals Ironing roll with cam for following coil/strip tangent point
FR2820061B1 (en) * 2001-01-30 2003-05-02 Vai Clecim DEVICE FOR DRIVING AND GUIDING A BELT
DE10202687B4 (en) * 2001-10-24 2005-09-08 Windmöller & Hölscher Kg Device for continuous winding of webs
SE529858C2 (en) * 2006-01-18 2007-12-11 Bergs Engineering Ab Method and apparatus for improved winding
CN113371499B (en) * 2020-12-31 2023-07-14 江苏亚威机床股份有限公司 Friction roller type tension device for aluminum strip machining

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US4063440A (en) * 1976-04-16 1977-12-20 Mesta Machine Company Quick-change coiler assembly for strip mills and the like

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DE1156041B (en) * 1959-11-05 1963-10-24 Davy & United Eng Co Ltd Reel for winding in particular hot rolled strip
US3328990A (en) * 1963-06-04 1967-07-04 United Eng Foundry Co Coiler for strip-like material
DE1499123A1 (en) * 1966-07-29 1970-02-19 Schloemann Ag Method and device for winding continuous metal strip
DE2653725A1 (en) * 1976-11-26 1978-06-01 Schloemann Siemag Ag TWO-REEL DRIVING DEVICE FOR TAPE REEL
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106391750A (en) * 2016-10-26 2017-02-15 安徽新荣钢构有限公司 Rail-mounted metal sheet rolling-up device
CN106391750B (en) * 2016-10-26 2018-09-14 安徽新荣钢构有限公司 A kind of rail mounted sheet metal wrap-up

Also Published As

Publication number Publication date
US4404831A (en) 1983-09-20
DE3161414D1 (en) 1983-12-22
EP0043898B1 (en) 1983-11-16
JPS5747528A (en) 1982-03-18
DE3026524A1 (en) 1982-02-11

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