EP1402227A1 - Thin-strip coiler comprising a flatness measuring roll - Google Patents

Thin-strip coiler comprising a flatness measuring roll

Info

Publication number
EP1402227A1
EP1402227A1 EP02758225A EP02758225A EP1402227A1 EP 1402227 A1 EP1402227 A1 EP 1402227A1 EP 02758225 A EP02758225 A EP 02758225A EP 02758225 A EP02758225 A EP 02758225A EP 1402227 A1 EP1402227 A1 EP 1402227A1
Authority
EP
European Patent Office
Prior art keywords
flatness measuring
measuring roller
roller
reel
flatness
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.)
Withdrawn
Application number
EP02758225A
Other languages
German (de)
French (fr)
Inventor
Martin Braun
Jürgen Armenat
Klaus-Jürgen GROSSHARDT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1402227A1 publication Critical patent/EP1402227A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
    • 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
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B21C47/06—Winding-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
    • B21C47/063—Winding-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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • 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
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
    • G01B5/285—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces for controlling eveness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product

Definitions

  • the invention relates to a method for measuring and influencing the flatness of the strip in the reel shaft of a hot strip mill, the reel shaft having movable and stationary strip guides between a driver and a reel and a flatness measuring roller, and the hot strip via a roller table and the driving rollers of the driver through the reel shaft to a reel is fed with reel mandrel, pressure rollers and deflection shells.
  • the invention further relates to an apparatus for performing the method.
  • DE 197 04 447 A1 discloses an arrangement for measuring the flatness of a rolled strip in a hot strip mill with a roughing and finishing train with several roll stands and a reel, one or more measuring rollers e.g. is / are arranged between the driver and the reel.
  • one or more measuring rollers are present in the reel shaft, negative strip running properties, preferably being observed at the beginning and end of the strip.
  • the invention is based on the object of detecting the above-mentioned influences as far as possible during a flatness measurement and at the same time avoiding the aforementioned disadvantages.
  • the core of the invention is the provision of a method and a device for measuring and influencing the flatness of the strip, the flatness measuring roller being moved from a working position in which the hot strip is guided around the flatness measuring roller while maintaining an approximately constant wrap angle ⁇ , and that the flatness measuring roller in the reel shaft is protected by a swiveling belt guide.
  • the flatness measuring roller can preferably be moved into a protected position at the beginning and end of the strip.
  • a swiveled-in belt guide protecting the flatness measuring roll is tion arranged, whereby a safe tape run, especially the tape end and the beginning of the tape can be achieved.
  • Figure 1 shows an arrangement of a flatness measuring roller between the driver and
  • FIG. 2 shows a flatness measuring roller in the measuring position shortly after the winding process
  • FIG. 3 shows a flatness measuring roller in a later measuring position when winding the coil
  • Figure 4 shows a flatness measuring roller, just in the measuring position, shortly before
  • FIG. 5 shows a flatness measuring roller, lowered when a strip is fed in
  • FIG. 6 shows another arrangement of a flatness measuring roller and a deflection roller between the driver and the reel when the tape tip is running in
  • FIG. 7 shows a flatness measuring roller according to FIG. 6 in the measuring position with the deflection roller lowered shortly after the winding process
  • FIG. 8 shows a flatness measuring roller according to FIG. 6 in measuring position with the deflection roller lowered shortly before the end of the winding process
  • a hot strip 1 is fed via a roller table 2 to the drive rollers 3 and 4 of a driver, a reel with a reel mandrel 5, pressure rollers 6 and deflection shells 7.
  • belt guides 8, 9, 10, 11, 12 and a flatness measuring roller 13 are between the driver and the reel.
  • the belt guide 8 is part of a belt switch 15 for optional reversal of the belt tip in a multi-reel operation.
  • the tape guide 9 is e.g. with a cylinder 16 actuated shaft flap 9, which is pivoted up immediately after the band entry about the common pivot point 17 of the band switch 15, shaft flap 9 and switch roller 18.
  • the belt guide 10 is a stationary guide that can only be adjusted for gap adjustment relative to the drive roller 3.
  • the tape guide 11 is stationary and the tape guide 12 is connected to the deflection shell 7.3 and is swung away after the tape has been fed in with this and the pressure roller 6.3.
  • the flatness measuring roller 13 is mounted in a swivel frame 19 which rotates about a fixed pivot point 20 and e.g. can be pivoted by a position-controlled hydraulic cylinder 21.
  • a position actual value transmitter which can be mounted in the hydraulic cylinder 21 or is present in the pivot point 20, ensures the detection of the actual position of the swivel frame 19 or the flatness measuring roller 13.
  • the pivotable protective device 14 can be pivoted about the fixed pivot point 22, for example with the aid of a cylinder 23.
  • This protective device 14 serves both for guiding the tape at the tape entry and as a protective device for the lowered position of the flatness measuring roller 13.
  • the flatness measuring roller 13 is equipped with a speed and torque-controlled rotary drive, not shown, so that there is no relative speed between the belt 1 and the roller surface when there is contact with the belt and no grinding marks or material deposits occur, so that the flatness measurement can be started immediately after the belt contact.
  • the flatness measuring roller 13 is pivoted into an initial measuring position (cf. FIG. 2) and moved from this position in a position-controlled manner in accordance with the increase in coil diameter while maintaining a constant wrap angle.
  • the flatness measuring roller 13 Shortly before the end of the winding process, the flatness measuring roller 13 is lowered and the tape guide 14, which is also protection for the flatness measuring roller 13, is pivoted in.
  • FIGS. 6 to 9 Another device variant is shown in FIGS. 6 to 9 and is described as follows.
  • a hot strip 1 is fed via a roller table 2 and the drive rollers 3, 4 of a driver to a reel with a reel mandrel 5, pressure rollers 6 and deflection shells 7.
  • Belt guides 8, 9.1, 9.2, 10, 11, 12, a flatness measuring roller 13 with a pivotable belt guide 14 and a deflection roller 24 are located between the driver and the reel.
  • the belt guide 8 is part of a belt switch 15 for the optional reversal of the belt tip in a multi-reel operation.
  • the belt guide 9.1 and 9.2 is the one with e.g. two position-controlled hydraulic cylinders 16, 25 actuated shaft flap 9.1 and 9.2, which is pivotably mounted in a common pivot point 17 of the belt switch 15, switch roller 18 and shaft flap 9.1 and 9.2.
  • the deflecting roller 24 is rotatably mounted on the shaft flap 9.1 which can be pivoted about the pivot point 17 and, after the tape tip has run in and the subsequent winding operation, is moved in a position-controlled manner into the lower end position against stationary stops. During this lowering movement of the deflection roller 24, the separately pivotable part 9.2 of the shaft flap is simultaneously pivoted up around the center 26 of the deflection roller 24 with the aid of the cylinder 25, so that the necessary space for the coil to be wound is created.
  • the flatness measuring roller 13 which is mounted in a swivel frame 19, is moved around the pivot point 20 with the aid of e.g. a position-controlled hydraulic cylinder 21 pivoted against two stationary stops in the measuring position.
  • the tape guide 14 is fastened to the swivel frame 19 of the flatness measuring roller 13 and is automatically pivoted away when the flatness measuring roller 13 is swung out. Shortly before the end of the belt, the shaft flap 9.1 with the deflection roller 24 is pivoted into the upper end position while the flap 9.2 is lowered, while the flatness measuring roller 13 is moved into the lowered, protected position.
  • Flatness measuring roller 13 and deflection roller 24 are equipped with speed and torque-controlled rotary drives, not shown, so that there are no relative speeds between the belt and the roller surface and no grinding marks or material deposits occur, so that the flatness measurement can be started immediately after the belt contact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Control Of Metal Rolling (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Metal Rolling (AREA)

Abstract

The invention relates to a method and device for measuring and influencing the strip flatness in the coiler shaft of a hot-strip mill, whereby the coiler shaft has, between a driver and a coiler, moving and stationary strip guides as well as a flatness measuring roll (13). The hot strip (1) is supplied via the coiler shaft to a coiler, which is provided with a coiler mandrel (5), pressure rolls (6) and with deflecting shells (7), over a roller table (2) and the driving rolls (3, 4) of the driver. The flatness measuring roll (13) is displaced out of a working position, in which the hot strip is guided around the flatness measuring roll (13) while maintaining an approximately constant contact angle alpha , and into a lowered position. In addition, a strip guide (14), which can swivel inward and protects the flatness measuring roll (13), is placed inside the coiler shaft.

Description

Dünnbandhaspel mit PlanheitsmeßrolleThin strip reel with flatness measuring roller
Die Erfindung betrifft ein Verfahren zum Messen und Beeinflussen der Bandplanheit im Haspelschacht einer Warmbandwalzanlage, wobei der Haspelschacht zwischen einem Treiber und einem Haspel bewegliche und ortsfeste Bandführungen sowie eine Planheitsmeßrolle aufweist, und das Warmband über einen Rollgang und die Treibrollen des Treibers durch den Haspelschacht einem Haspel mit Haspeldorn, Andrückrollen und Umlenkschalen zugeführt wird. Die Erfindung betrifft ferner eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for measuring and influencing the flatness of the strip in the reel shaft of a hot strip mill, the reel shaft having movable and stationary strip guides between a driver and a reel and a flatness measuring roller, and the hot strip via a roller table and the driving rollers of the driver through the reel shaft to a reel is fed with reel mandrel, pressure rollers and deflection shells. The invention further relates to an apparatus for performing the method.
Bei Kaltwalzwerken ist es bekannt, Planheitsmeßrollen einzusetzen, die zur Erzielung spannungsfreien Walzbandes An- bzw. Einstellungen von Gerüsten beeinflussen, so bspw. ungleiche Walzkräfte für die Ständer eines Gerüstes und/oder korrigierende Maßnahmen mit Hilfe der vorhandenen Stellsysteme (z.B. Biegung, hydraulische Anstellung, Walzenkühlung usw.) bewirken. Bei modernen Warmwalzverfahren werden Bänder mit Mindestbandabmessungen von < 1 ,0 mm Dicke gewalzt. Die Bandplanheit spielt bei der Erzeugung dünner Warmbänder eine große Rolle und stellt an die Einrichtungen der Anlage hohe Anforderungen. Auch die den Walzgerüsten nachgeschalteten Einrichtungen, wie Bandkühlung, Rollgang mit Rollenkühlung und Treiber vor dem Haspel be- einflussen die Bandplanheit.In the case of cold rolling mills, it is known to use flatness measuring rolls which influence the setting or setting of stands to achieve tension-free rolling strip, for example unequal rolling forces for the stands of a stand and / or corrective measures with the aid of the existing adjusting systems (for example bending, hydraulic adjustment, Roller cooling, etc.). In modern hot rolling processes, strips with minimum strip dimensions of <1.0 mm thickness are rolled. The strip flatness plays a major role in the production of thin hot strips and places high demands on the facilities of the system. The facilities downstream of the rolling stands, such as strip cooling, roller table with roller cooling and drivers in front of the reel, also influence the strip flatness.
Der Einsatz einer Planheitsmessung mit Planheitsmessrolle bietet sich bei einer Endbanddicke mit ca. 3 mm und kleiner an, da die bisher verwendeten optischen Meßgeräte mit geringer werdender Endbanddicke und damit steigenden Auslaufgeschwindigkeiten an Grenzen stoßen. Nachteilig ist hier jedoch, dass die Planheitsmeßrolle einen Rollgang vervollständigt und somit Bandplanheit beeinflussende Faktoren hinter dieser Stelle unberücksichtigt bleiben.The use of a flatness measurement with a flatness measuring roller is recommended for a final strip thickness of approx. 3 mm and smaller, since the optical measuring devices used so far reach their limits with a decreasing final strip thickness and thus increasing outlet speeds. The disadvantage here, however, is that the flatness measuring roller completes a roller table and factors influencing strip flatness are not taken into account behind this point.
Aus der DE 197 04 447 A1 ist eine Anordnung zum Messen der Planheit eines Walzbandes in einer Warmbandstraße mit einer Vor- und einer Fertigstraße mit mehreren Walzgerüsten sowie einem Haspel bekannt, wobei eine oder mehrere Meßrollen z.B. zwischen dem Treibapparat und dem Haspel angeordnet ist/sind. Hierbei sind eine oder mehrere Meßrollen im Haspelschacht vorhanden, wobei negative Bandlauf eigenschaften, vorzugsweise am Bandanfang und -ende beobachtet werden.DE 197 04 447 A1 discloses an arrangement for measuring the flatness of a rolled strip in a hot strip mill with a roughing and finishing train with several roll stands and a reel, one or more measuring rollers e.g. is / are arranged between the driver and the reel. Here, one or more measuring rollers are present in the reel shaft, negative strip running properties, preferably being observed at the beginning and end of the strip.
Der Erfindung liegt die Aufgabe zugrunde, bei einer Planheitsmessung die vorgenannten Einflüsse so weit wie möglich zu erfassen und gleichzeitig die zuvor genannten Nachteile zu vermeiden.The invention is based on the object of detecting the above-mentioned influences as far as possible during a flatness measurement and at the same time avoiding the aforementioned disadvantages.
Diese Aufgabe wird bei einem Verfahren bzw. einer Vorrichtung der eingangs genannten Art durch die Merkmale des Verfahrensanspruchs 1 und des Vorrichtungsanspruchs 2 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sowie unterschiedliche Ausführungsformen der Vorrichtung sind in den Unteransprü- chen offenbart.This object is achieved in a method or a device of the type mentioned at the outset by the features of method claim 1 and device claim 2. Advantageous embodiments of the invention and different embodiments of the device are disclosed in the subclaims.
Kern der Erfindung ist die Bereitstellung eines Verfahrens und einer Vorrichtung zum Messen und Beeinflussen der Bandplanheit, wobei die Planheitsmeßrolle aus einer Arbeitsstellung, in der das Warmband unter Aufrechterhaltung eines annähernd konstanten Umschlingungswinkels α um die Planheitsmeßrolle geführt ist, in eine abgesenkte Position bewegt wird und, dass die Planheitsmeßrolle im Haspelschacht von einer einschwenkbaren Bandführung geschützt wird. Die Planheitsmeßrolle kann mit dieser Maßnahme vorzugsweise am Bandanfang und -ende in eine geschützte Position verfahren werden. In dem Has- pelschacht ist eine die Planheitsmeßrolle schützende eingeschwenkte Bandfüh- rung angeordnet, wodurch sich ein sicherer Bandlauf , insbesondere des Bandendes und des Bandanfangs, erreichen läßt.The core of the invention is the provision of a method and a device for measuring and influencing the flatness of the strip, the flatness measuring roller being moved from a working position in which the hot strip is guided around the flatness measuring roller while maintaining an approximately constant wrap angle α, and that the flatness measuring roller in the reel shaft is protected by a swiveling belt guide. With this measure, the flatness measuring roller can preferably be moved into a protected position at the beginning and end of the strip. In the reel shaft, a swiveled-in belt guide protecting the flatness measuring roll is tion arranged, whereby a safe tape run, especially the tape end and the beginning of the tape can be achieved.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung, mit der in den Zeichnungen dargestellte Ausführungs- beispiele der Erfindung näher erläutert werden. Es zeigen:Further details and advantages of the invention result from the following description, with which exemplary embodiments of the invention illustrated in the drawings are explained in more detail. Show it:
Figur 1 eine Anordnung einer Planheitsmeßrolle zwischen Treiber undFigure 1 shows an arrangement of a flatness measuring roller between the driver and
Haspel bei Einlauf der Bandspitze,Reel at the infeed of the band tip,
Figur 2 eine Planheitsmeßrolle in Meßposition kurz nach dem Anwickel- vorgang,FIG. 2 shows a flatness measuring roller in the measuring position shortly after the winding process,
Figur 3 eine Planheitsmeßrolle in einer späteren Meßposition beim Wik- keln des Coils,FIG. 3 shows a flatness measuring roller in a later measuring position when winding the coil,
Figur 4 eine Planheitsmeßrolle, gerade noch in Meßposition, kurz vor demFigure 4 shows a flatness measuring roller, just in the measuring position, shortly before
Ende des Wickelvorgangs,End of wrapping,
Figur 5 eine Planheitsmeßrolle, abgesenkt beim Einlauf eines Bandes,FIG. 5 shows a flatness measuring roller, lowered when a strip is fed in,
Figur 6 eine andere Anordnung einer Planheitsmeßrolle und einer Umlenkrolle zwischen Treiber und Haspel bei Einlauf der Bandspitze,FIG. 6 shows another arrangement of a flatness measuring roller and a deflection roller between the driver and the reel when the tape tip is running in,
Figur 7 eine Planheitsmeßrolle nach Figur 6 in Meßposition bei abge- senkter Umlenkrolle kurz nach dem Anwickelvorgang,FIG. 7 shows a flatness measuring roller according to FIG. 6 in the measuring position with the deflection roller lowered shortly after the winding process,
Figur 8 eine Planheitsmeßrolle nach Figur 6 in Meßposition bei abgesenkter Umlenkrolle kurz vor dem Ende des Wickelvorgangs,8 shows a flatness measuring roller according to FIG. 6 in measuring position with the deflection roller lowered shortly before the end of the winding process,
Figur 9 eine Planheitsmeßrolle nach Figur 6 abgesenkt und eine Umlenkrolle angehoben beim Einlauf des Bandendes. Ein Warmband 1 wird über einen Rollgang 2 den Treibrollen 3 und 4 eines Treibers, einem Haspel mit Haspeldorn 5, Andrückrollen 6 und Umlenkschalen 7 zugeführt. Zwischen Treiber und Haspel befinden sich Bandführungen 8, 9, 10, 11, 12 und eine Planheitsmeßrolle 13 sowie eine schwenkbare Schutzeinrich- tung 14. Die Bandführung 8 ist ein Teil einer Bandweiche 15 zur wahlweisen Umsteuerung der Bandspitze bei einem Mehrhaspelbetrieb.9 shows a flatness measuring roller according to FIG. 6 lowered and a deflection roller raised when the strip end runs in. A hot strip 1 is fed via a roller table 2 to the drive rollers 3 and 4 of a driver, a reel with a reel mandrel 5, pressure rollers 6 and deflection shells 7. Between the driver and the reel there are belt guides 8, 9, 10, 11, 12 and a flatness measuring roller 13 as well as a pivotable protective device 14. The belt guide 8 is part of a belt switch 15 for optional reversal of the belt tip in a multi-reel operation.
Die Bandführung 9 ist eine z.B. mit einem Zylinder 16 betätigte Schachtklappe 9, die unmittelbar nach Bandeinlauf um den gemeinsamen Drehpunkt 17 von Bandweiche 15, Schachtklappe 9 und Weichenrolle 18 hochgeschwenkt wird.The tape guide 9 is e.g. with a cylinder 16 actuated shaft flap 9, which is pivoted up immediately after the band entry about the common pivot point 17 of the band switch 15, shaft flap 9 and switch roller 18.
Die Bandführung 10 ist eine ortsfeste Führung, die nur zur Spaltanpassung gegenüber der Treibrolle 3 einstellbar ist.The belt guide 10 is a stationary guide that can only be adjusted for gap adjustment relative to the drive roller 3.
Die Bandführung 11 ist ortsfest und die Bandführung 12 ist mit der Umlenkschale 7.3 verbunden und wird nach Bandeinlauf mit dieser und der Andrückrolle 6.3 weggeschwenkt.The tape guide 11 is stationary and the tape guide 12 is connected to the deflection shell 7.3 and is swung away after the tape has been fed in with this and the pressure roller 6.3.
Die Planheitsmeßrolle 13 ist in einem Schwenkrahmen 19 gelagert, der sich um einen ortsfesten Drehpunkt 20 dreht und z.B. durch einen positionsgeregelten Hydraulikzylinder 21 geschwenkt werden kann.The flatness measuring roller 13 is mounted in a swivel frame 19 which rotates about a fixed pivot point 20 and e.g. can be pivoted by a position-controlled hydraulic cylinder 21.
Ein Positions-Istwertgeber, der sich in dem Hydraulikzylinder 21 montieren läßt oder im Drehpunkt 20 vorhanden ist, sorgt für die Erfassung der Istposition von Schwenkrahmen 19 bzw. der Planheitsmeßrolle 13.A position actual value transmitter, which can be mounted in the hydraulic cylinder 21 or is present in the pivot point 20, ensures the detection of the actual position of the swivel frame 19 or the flatness measuring roller 13.
Die schwenkbare Schutzeinrichtung 14 ist um den ortsfesten Drehpunkt 22 z.B. mit Hilfe eines Zylinders 23 schwenkbar. Diese Schutzeinrichtung 14 dient sowohl zur Bandführung beim Bandeinlauf, als auch als Schutzeinrichtung für die abgesenkte Position der Planheitsmeßrolle 13. Die Planheitsmeßrolle 13 ist mit einem nicht dargestellten drehzahi- und drehmomentgeregelten Drehantrieb ausgerüstet, damit bei Bandkontakt keine Relativgeschwindigkeit zwischen Band 1 und Rollenoberfläche vorhanden ist und keine Schleifspuren bzw. Materialauftragungen entstehen, so dass mit der Planheitsmessung unmittelbar nach dem Bandkontakt begonnen werden kann.The pivotable protective device 14 can be pivoted about the fixed pivot point 22, for example with the aid of a cylinder 23. This protective device 14 serves both for guiding the tape at the tape entry and as a protective device for the lowered position of the flatness measuring roller 13. The flatness measuring roller 13 is equipped with a speed and torque-controlled rotary drive, not shown, so that there is no relative speed between the belt 1 and the roller surface when there is contact with the belt and no grinding marks or material deposits occur, so that the flatness measurement can be started immediately after the belt contact.
Nach dem Anwickelvorgang wird die Planheitsmeßrolle 13 in eine Ausgangsmeßposition (vgl. Fig. 2) geschwenkt und aus dieser Position entsprechend dem Coildurchmesserzuwachs unter Beibehaltung eines konstanten Umschlingungswinkels positionsgeregelt nachgefahren.After the winding process, the flatness measuring roller 13 is pivoted into an initial measuring position (cf. FIG. 2) and moved from this position in a position-controlled manner in accordance with the increase in coil diameter while maintaining a constant wrap angle.
Kurz vor Ende des Wickelvorgangs wird die Planheitsmeßrolle 13 abgesenkt und die Bandführung 14, die gleichzeitig Schutz für die Planheitsmeßrolle 13 ist, eingeschwenkt.Shortly before the end of the winding process, the flatness measuring roller 13 is lowered and the tape guide 14, which is also protection for the flatness measuring roller 13, is pivoted in.
Gleichzeitig werden beim Absenken der Planheitsmeßrolle 13 die Andrückrollen 6 an das Coil gefahren, um ein Herumschlagen der äußeren Windungen zu vermeiden.At the same time, when the flatness measuring roller 13 is lowered, the pressure rollers 6 are moved onto the coil in order to prevent the outer windings from swinging around.
Nach dem Austragen des Coils werden die Andrückrollen 6 mit den Umlenk- schalen 7 wieder in die Anwickelposition gemäß Fig. 1 geschwenkt und die Schachtklappe 9 abgesenkt. Anschließend kann ein weiteres Band angewickelt werden.After the coil has been discharged, the pressure rollers 6 with the deflection shells 7 are pivoted back into the winding position according to FIG. 1 and the shaft flap 9 is lowered. Another tape can then be wound up.
Eine weitere Vorrichtungsvariante ist in den Fig. 6 bis 9 dargestellt und wird wie folgt beschrieben. Ein Warmband 1 wird über einen Rollgang 2 und den Treibrollen 3, 4 eines Treibers einem Haspel mit Haspeldorn 5, Andrückrollen 6 und Umlenkschalen 7 zugeführt.Another device variant is shown in FIGS. 6 to 9 and is described as follows. A hot strip 1 is fed via a roller table 2 and the drive rollers 3, 4 of a driver to a reel with a reel mandrel 5, pressure rollers 6 and deflection shells 7.
Zwischen Treiber und Haspel befinden sich Bandführungen 8, 9.1 , 9.2, 10, 11 , 12, eine Planheitsmeßrolle 13 mit einer schwenkbaren Bandführung 14 und eine Umlenkrolle 24. Die Bandführung 8 ist ein Teil einer Bandweiche 15 zur wahlweisen Umsteuerung der Bandspitze bei einem Mehrhaspelbetrieb.Belt guides 8, 9.1, 9.2, 10, 11, 12, a flatness measuring roller 13 with a pivotable belt guide 14 and a deflection roller 24 are located between the driver and the reel. The belt guide 8 is part of a belt switch 15 for the optional reversal of the belt tip in a multi-reel operation.
Die Bandführung 9.1 und 9.2 ist die mit z.B. zwei positionsgeregelten Hydrau- likzylindern 16,25 betätigte Schachtklappe 9.1 und 9.2, die in einem gemeinsamen Drehpunkt 17 von Bandweiche 15, Weichenrolle 18 und Schachtklappe 9.1 und 9.2 schwenkbar gelagert ist.The belt guide 9.1 and 9.2 is the one with e.g. two position-controlled hydraulic cylinders 16, 25 actuated shaft flap 9.1 and 9.2, which is pivotably mounted in a common pivot point 17 of the belt switch 15, switch roller 18 and shaft flap 9.1 and 9.2.
Die Umlenkrolle 24 ist auf der um den Drehpunkt 17 schwenkbaren Schacht- klappe 9.1 drehbar gelagert und wird nach Einlauf der Bandspitze und dem nachfolgenden Anwickelvorgang positionsgeregelt in die untere Endposition gegen ortsfeste Anschläge gefahren. Während dieser Absenkbewegung der Umlenkrolle 24 wird gleichzeitig der separat schwenkbare Teil 9.2 der Schachtklappe mit Hilfe des Zylinders 25 um den Mittelpunkt 26 der Umlenkrolle 24 hochgeschwenkt, damit der notwendige Freiraum für das zu wickelnde Coil geschaffen wird.The deflecting roller 24 is rotatably mounted on the shaft flap 9.1 which can be pivoted about the pivot point 17 and, after the tape tip has run in and the subsequent winding operation, is moved in a position-controlled manner into the lower end position against stationary stops. During this lowering movement of the deflection roller 24, the separately pivotable part 9.2 of the shaft flap is simultaneously pivoted up around the center 26 of the deflection roller 24 with the aid of the cylinder 25, so that the necessary space for the coil to be wound is created.
Unmittelbar nach dem Anwickelvorgang wird die Planheitsmeßrolle 13, die in einem Schwenkrahmen 19 gelagert ist, um den Drehpunkt 20 mit Hilfe von z.B. einem positionsgeregelten Hydraulikzylinder 21 gegen zwei ortsfeste Anschläge in die Meßposition geschwenkt.Immediately after the winding process, the flatness measuring roller 13, which is mounted in a swivel frame 19, is moved around the pivot point 20 with the aid of e.g. a position-controlled hydraulic cylinder 21 pivoted against two stationary stops in the measuring position.
In dieser Meßposition besteht während des gesamten Wickelvorgangs eine konstante Bandlaufgeometrie zwischen Treiberrolle 3, Planheitsmeßrolle 13 mit einem konstanten Umschlingungswinkel α und Umlenkrolle 24.In this measuring position, there is a constant tape running geometry between driver roller 3, flatness measuring roller 13 with a constant wrap angle α and deflection roller 24 during the entire winding process.
Die Bandführung 14 ist am Schwenkrahmen 19 der Planheitsmeßrolle 13 befestigt und wird beim Ausschwenkvorgang der Planheitsmeßrolle 13 automatisch mit weggeschwenkt. Kurz vor Einlauf des Bandendes wird die Schachtklappe 9.1 mit der Umlenkrolle 24 in die obere Endposition bei gleichzeitiger Absenkung der Klappe 9.2 geschwenkt, während die Planheitsmeßrolle 13 in die abgesenkt geschützte Position gefahren wird.The tape guide 14 is fastened to the swivel frame 19 of the flatness measuring roller 13 and is automatically pivoted away when the flatness measuring roller 13 is swung out. Shortly before the end of the belt, the shaft flap 9.1 with the deflection roller 24 is pivoted into the upper end position while the flap 9.2 is lowered, while the flatness measuring roller 13 is moved into the lowered, protected position.
Nach dem Austragen des Coils werden die Andrückrollen 6 mit den Umlenkschalen 7 wieder in die Anwickelposition gemäß Fig. 6 geschwenkt und die Schachtklappe 9.1 und 9.2 mit Umlenkrolle 24 in Anwickelposition gemäß Fig. 6 abgesenkt. Anschließend kann ein weiteres Band angewickelt werden.After the coil has been discharged, the pressure rollers 6 with the deflection shells 7 are pivoted back into the winding position according to FIG. 6, and the shaft flaps 9.1 and 9.2 with the deflection roller 24 are lowered into the winding position according to FIG. 6. Another tape can then be wound up.
Planheitsmeßrolle 13 und Umlenkrolle 24 sind mit nicht dargestellten drehzahl- und drehmomentgeregelten Drehantrieben ausgerüstet, damit keine Relativgeschwindigkeiten zwischen Band und Rollenoberfläche vorhanden sind und keine Schleifspuren bzw. Materialauftragungen entstehen, so dass mit der Planheitsmessung unmittelbar nach dem Bandkontakt begonnen werden kann. Flatness measuring roller 13 and deflection roller 24 are equipped with speed and torque-controlled rotary drives, not shown, so that there are no relative speeds between the belt and the roller surface and no grinding marks or material deposits occur, so that the flatness measurement can be started immediately after the belt contact.

Claims

Patentansprüche claims
1. Verfahren zum Messen und Beeinflussen der Bandplanheit im Haspelschacht einer Warmbandwalzanlage, wobei der Haspelschacht zwischen einem Treiber und einem Haspel bewegliche und ortsfeste Bandführungen sowie eine Planheitsmeßrolle aufweist, und das Warmband über einen Rollgang und die Treibrollen des Treibers durch den Haspelschacht einem Haspel mit Haspeldorn, Andrückrollen und Umlenkschalen zugeführt wird, dadurch gekennzeichnet, dass die Planheitsmessrolle (13) aus einer Arbeitsstellung, in der das Warmband unter Aufrechterhaltung eines annähernd konstanten Um- schlingungswinkels um die Planheitsmessrolle (13) geführt ist, in eine abgesenkte Position bewegt wird und dass die Planheitsmessrolle (13) im Haspelschacht von einer einschwenkbaren Bandführung (14) geschützt wird.1. A method for measuring and influencing the flatness of the strip in the reel shaft of a hot strip rolling mill, the reel shaft between a driver and a reel having movable and stationary strip guides and a flatness measuring roller, and the hot strip via a roller table and the driving rollers of the driver through the reel shaft of a reel with a reel mandrel , Pressure rollers and deflection shells is supplied, characterized in that the flatness measuring roller (13) is moved from a working position in which the hot strip is guided around the flatness measuring roller (13) while maintaining an approximately constant wrap angle, and in that the Flatness measuring roller (13) in the reel shaft is protected by a swivel-in tape guide (14).
2. Vorrichtung an einem Haspelschacht, der zwischen einem Treiber und einem Haspel bewegliche und ortsfeste Bandführungen sowie eine Planheitsmeßrolle aufweist, wobei ein Warmband über einen Rollgang und die Treibrollen des Treibers durch den Haspelschacht einem Haspel mit Haspeldorn, Andrückrollen und Umlenkschalen zugeführt wird, zur Durchführung des Verfahrens nach Anspruch 1 dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) aus einer Arbeitsstellung, in der das Warmband unter Aufrechterhaltung eines annähernd konstanten Umschlingungswinkels um die Planheitsmessrolle (13) führbar ist, in eine abgesenkte Position bewegbar ist und dass im Haspelschacht eine die2.Device on a reel shaft, which has movable and stationary belt guides between a driver and a reel and a flatness measuring roller, with a hot strip being fed via a roller table and the driver's drive rollers through the reel shaft to a reel with a reel mandrel, pressure rollers and deflection shells of the method according to claim 1, characterized in that the flatness measuring roller (13) from a working position in which the hot strip can be guided around the flatness measuring roller (13) while maintaining an approximately constant wrap angle, can be moved into a lowered position and that the one in the reel shaft
Planheitsmeßrolle (13) schützende, einschwenkbare Bandführung (14) vorgesehen ist. Flatness measuring roller (13) protecting, pivoting tape guide (14) is provided.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) nach dem Aufbau von Zugspannungen in die Arbeitsstellung bewegbar ist.3. Device according to claim 2, characterized in that the flatness measuring roller (13) is movable into the working position after the build-up of tensile stresses.
4. Vorrichtung nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) an einem Schwenkrahmen (19) befestigt ist, der in einem Drehpunkt (20) drehbar gelagert ist.4. Device according to claims 2 or 3, characterized in that the flatness measuring roller (13) is attached to a swivel frame (19) which is rotatably mounted in a pivot point (20).
5. Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) über einen Hydraulikzylinder (21) um den Drehpunkt (20) in die Arbeitsstellung bewegbar ist.5. Device according to one of claims 2 to 4, characterized in that the flatness measuring roller (13) via a hydraulic cylinder (21) about the pivot point (20) is movable into the working position.
6. Vorrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) durch einen Antrieb drehantreibbar ist.6. Device according to one of claims 2 to 5, characterized in that the flatness measuring roller (13) can be driven in rotation by a drive.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Antrieb stufenlos in seiner Drehzahl und/oder seinem Drehmoment regelbar ist.7. The device according to claim 6, characterized in that the drive is infinitely variable in its speed and / or its torque.
8. Vorrichtung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) und die Bandführung (14) getrennt voneinander um verschiedene Drehpunkte (20, 22) bewegbar sind.8. Device according to one of claims 2 to 7, characterized in that the flatness measuring roller (13) and the tape guide (14) can be moved separately from one another about different pivot points (20, 22).
9. Vorrichtung nach einer der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) stufenlos bis zum Anschlag des Zylinders (21) bewegbar und der sich ändernden Coilhöhe zur Aufrechterhaltung eines annähernd konstanten Umschlingungswinkels nachfahrbar ist.9. Device according to one of claims 2 to 8, characterized in that the flatness measuring roller (13) can be moved continuously up to the stop of the cylinder (21) and that the changing coil height can be traced to maintain an approximately constant wrap angle.
10. Vorrichtung nach einer der Ansprüchen 2 bis 9, dadurch gekennzeichnet, dass die Bandführung (14) mit Hydraulikzylinder (23) um den Drehpunkt (22) bewegbar ist.10. Device according to one of claims 2 to 9, characterized in that the band guide (14) with hydraulic cylinder (23) about the pivot point (22) is movable.
11. Vorrichtung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) und die Bandführung (14) um einen gemeinsamen Drehpunkt (20) bewegbar sind.11. The device according to one of claims 2 to 7, characterized in that the flatness measuring roller (13) and the tape guide (14) are movable about a common pivot point (20).
12. Vorrichtung nach Anspruch 11 , dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) und die Bandführung (14) an einem Tragrahmen (19) montierbar sind.12. The apparatus according to claim 11, characterized in that the flatness measuring roller (13) and the tape guide (14) can be mounted on a support frame (19).
13. Vorrichtung nach Anspruch 11 und 12, dadurch gekennzeichnet, dass die Planheitsmeßrolle (13) in eine ortsfeste Arbeitsposition schwenkbar ist.13. The apparatus of claim 11 and 12, characterized in that the flatness measuring roller (13) can be pivoted into a fixed working position.
14. Vorrichtung nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass zur Aufrechterhaltung eines annähernd konstanten Umschlingungswinkels α um die Planheitsmeßrolle (13) eine positionsregelbare Umlenkrolle (24) in den Zugweg des Warmbandes (1) einbringbar ist. 14. Device according to one of claims 11 to 13, characterized in that in order to maintain an approximately constant wrap angle α around the flatness measuring roller (13), a position-controllable deflection roller (24) can be introduced into the pull path of the hot strip (1).
5. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die Umlenkrolle (24) durch einen Antrieb drehantreibbar ist, der stufenlos in seiner Drehzahl und/oder seinem Drehmoment regelbar ist. 5. The device according to claim 14, characterized in that the deflecting roller (24) can be driven in rotation by a drive which is infinitely variable in its speed and / or its torque.
EP02758225A 2001-06-30 2002-06-11 Thin-strip coiler comprising a flatness measuring roll Withdrawn EP1402227A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10131850 2001-06-30
DE10131850A DE10131850B4 (en) 2001-06-30 2001-06-30 Thin strip reel with flatness measuring roll
PCT/EP2002/006358 WO2003004963A1 (en) 2001-06-30 2002-06-11 Thin-strip coiler comprising a flatness measuring roll

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EP1402227A1 true EP1402227A1 (en) 2004-03-31

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US (1) US7059161B2 (en)
EP (1) EP1402227A1 (en)
JP (1) JP4167976B2 (en)
KR (1) KR100868699B1 (en)
CN (1) CN1254324C (en)
AU (1) AU2002325236B2 (en)
BR (1) BR0210795A (en)
CA (1) CA2452336C (en)
CZ (1) CZ20033453A3 (en)
DE (1) DE10131850B4 (en)
MX (1) MXPA03011887A (en)
RU (1) RU2286222C2 (en)
UA (1) UA84389C2 (en)
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DE10131850A1 (en) 2003-01-23
JP4167976B2 (en) 2008-10-22
CN1535370A (en) 2004-10-06
CA2452336C (en) 2010-02-16
US20040244450A1 (en) 2004-12-09
CA2452336A1 (en) 2003-01-16
CZ20033453A3 (en) 2004-03-17
CN1254324C (en) 2006-05-03
RU2286222C2 (en) 2006-10-27
KR100868699B1 (en) 2008-11-13
KR20040012979A (en) 2004-02-11
ZA200309614B (en) 2004-06-18
RU2004102685A (en) 2005-06-27
BR0210795A (en) 2004-08-17
AU2002325236B2 (en) 2007-08-30
MXPA03011887A (en) 2004-06-03
DE10131850B4 (en) 2013-04-25
WO2003004963A1 (en) 2003-01-16
US7059161B2 (en) 2006-06-13
JP2004533621A (en) 2004-11-04
UA84389C2 (en) 2008-10-27

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