EP0004854B1 - Method of operating a metal band reel and a reel for carrying out this method - Google Patents

Method of operating a metal band reel and a reel for carrying out this method Download PDF

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Publication number
EP0004854B1
EP0004854B1 EP79100375A EP79100375A EP0004854B1 EP 0004854 B1 EP0004854 B1 EP 0004854B1 EP 79100375 A EP79100375 A EP 79100375A EP 79100375 A EP79100375 A EP 79100375A EP 0004854 B1 EP0004854 B1 EP 0004854B1
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EP
European Patent Office
Prior art keywords
capstan
segments
hollow shaft
drum
drive
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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.)
Expired
Application number
EP79100375A
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German (de)
French (fr)
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EP0004854A1 (en
Inventor
Johannes Jansen
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SMS Siemag AG
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SMS Schloemann Siemag AG
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Publication of EP0004854A1 publication Critical patent/EP0004854A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/248—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
    • B65H75/2484—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction movable actuator including wedge-like or lobed member
    • 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
    • B21C47/28—Drums or other coil-holders
    • B21C47/30—Drums or other coil-holders expansible or contractible

Definitions

  • the invention relates to a method for operating a rolled strip reel, the drum of which consists of a plurality of expandable segments which, with wedge-shaped support surfaces, are axially displaceably supported against a hollow shaft rotatably mounted in a reel housing and are adjusted by means of a stamp arranged in the hollow shaft and adjustable by means of an actuator , the reel housing for receiving the band bundle on the drum by means of a sliding drive, first in the direction of the band bundle and then when spreading the segments to eliminate the relative axial displacement between the segments and the hollow shaft in the required direction on its guide bed parallel to the drum axis is moved.
  • the invention is concerned with a rolled strip reel, the drum of which consists of a plurality of expandable segments which, with wedge-shaped support surfaces, are axially displaceably supported against a hollow shaft which is rotatably mounted in a reel housing and which is arranged in the hollow shaft and by means of an actuating drive for spreading the drum segments with simultaneous axial displacement of the same adjustable stamp, and which with a pushing in and out of the reel drum relative to.
  • Band bundle and / or the slider drive effecting the center of the strip control is equipped for the reel housing.
  • roll coiler is already known, the drum of which consists of several expandable segments which are supported axially displaceably with wedge-shaped bearing surfaces directly against a central hollow shaft rotatably mounted in a reel housing, and can be adjusted relative to the latter by means of a plunger arranged in the hollow shaft.
  • Wall reels of this type are advantageous in that the direct support of the drum segments on the circumference of the hollow shaft enables relatively small dimensions to be achieved, which result in a considerable reduction in the moment of inertia. This naturally also reduces the acceleration, braking and quick stop moments that occur during operation.
  • the bearing diameter for the reel shaft can be reduced considerably, so that the bearing wear is reduced even when the operating speeds are increased.
  • a non-generic roll coiler the drum of which consists of several expandable segments, which are supported axially displaceably with wedge-shaped bearing surfaces against a full shaft rotatably mounted in a reel housing and are adjusted by means of an adjusting device, has become known from US Pat. No. 3,456,893.
  • This roll coiler is spread by means of a sleeve which is axially displaceable on the full shaft and is connected to the segments.
  • the expansion drive for moving the sleeve serves at the same time as a displacement drive for the reel housing, the axial displacement causing the expansion of the drum segments to be derived from the primary movement of the displacement movement of the reel housing.
  • considerable mechanical effort is required for the double function of the actuator.
  • the invention has for its object to achieve with little additional technical effort that the unwinding of the rolled strip from the coil can take place immediately after the tensioning process, and that the displacement movement for the reel housing on the reel bed is made indirectly dependent on the spreading movement of the drum segments.
  • this object is achieved in a simple manner by tapping the extent of the relative glazing between the segments and the hollow shaft and converting it into negative feedback into the opposite displacement movement of the reel housing on the reel bed of the appropriate size.
  • the drum segments always maintain their predetermined relative position to the center line of the infeed of the processing systems downstream of the reel during their movement for tightening the coil, thus ensuring that the rolled reel can be put into operation immediately after the tensioning process has ended.
  • the relative displacement of the plunger to the hollow shaft is measured and used as a manipulated variable for the oppositely directed displacement drive of the reel housing. Since the relative displacement of the plunger relative to the hollow shaft corresponds to the relative displacement between the segments of the reel drum and the hollow shaft carrying and guiding it, the respective correction quantity can be determined in this way easily and with the least possible relative error.
  • a roll coiler for carrying out this method the drum of which consists of several expandable segments which are supported axially displaceably with wedge-shaped bearing surfaces against a hollow shaft rotatably mounted in a reel housing, the drum being arranged in the hollow shaft and by means of an actuator for spreading the drum segments at the same time
  • Axial displacement of the same adjustable plunger and equipped with a displacement drive for the reel housing, which causes the reel drum to be pushed in and out relative to the band bundle and / or the band center control is essentially distinguished according to the invention in that a measuring device for measurement is located between the segments and the hollow shaft the relative axial displacement between the segments and the hollow shaft is arranged, which is connected to a control element for the opposite actuation of the displacement drive.
  • the measuring device is in actuating connection with the rear end of the stamp displacing the segments and that the control element assigned to the disk drive is path-dependent on the one hand by the measuring device and on the other hand by a distance measuring device between the reel housing and the reel bed is adjustable and adjustable.
  • both the expansion drive for the drum segments and the displacement drive for the reel housing each consist of a double-acting hydraulic cylinder, and that the hydraulic fluid supply to the displacement drive can be influenced by a control valve controllable by the measuring device.
  • a rolled strip reel is shown, the hollow shaft 1 of which is axially displaceable but rotatably driven in roller bearings 2 of the reel housing 3.
  • the reel housing is guided displaceably on a stationary reel bed 4 in the direction of the longitudinal axis of the hollow shaft 1 and can be moved thereon by a displacement drive 5, for example a hydraulic cylinder.
  • the hollow shaft 1 is provided with wedge-shaped support surfaces 7, on which several, for example four, segments 8 are held and guided via support surfaces 9 which are also wedge-shaped.
  • the segments 8 together form the actual reel drum 10, which can be expanded or contracted, if necessary, in that the segments 8 held with their wedge-shaped support surfaces 19 on the wedge-shaped bearing surfaces 7 of the hollow shaft 1 simultaneously axially relative to the hollow shaft 1 be moved.
  • the axial displacement of the segments 8 relative to the hollow shaft 1 is forced by a plunger 12, which is guided centrally in the hollow shaft 1, engages the segments 8 in front of the front end of the hollow shaft 1 via a driver flange 13 and by one at the rear end of the hollow shaft 1 arranged hydraulic cylinder 14 can be moved axially.
  • the reel drum 10 is contracted radially or contracted when the plunger 12 has been pushed to the left by the hydraulic cylinder 14. To spread the drum 10, however, it is necessary to pull the punch 12 through the hydraulic cylinder 14 to the right, as can be seen from the upper half of FIG. 4.
  • the entire rolled strip reel with the radially contracted reel drum 10 must first be pushed onto the stationary reel bed 5 from the position according to FIG. 1 into the position according to FIG. 2.
  • This movement is brought about by the displacement drive 5 and, for example, limited by a limit switch 18, in that this interrupts the supply of the hydraulic fluid to the hydraulic cylinder 5.
  • the limit switch 18 determines the basic position of the rolled strip reel which ensures the proper strip run into the further processing system.
  • This basic position of the rolled strip coiler can then be corrected automatically during the unwinding operation by a so-called strip center control, by influencing the displacement drive 5 accordingly.
  • the reel drum 10 must first be spread within the central opening 19 of the coil 17. However, since this spreading movement is accompanied by an axial displacement of the drum segments 8 relative to the hollow shaft 1 or to the reel housing 3, care must be taken to ensure that the resulting axial displacement of the band collar 17 from its running center plane 20-20 is practically completely eliminated.
  • a measuring device 21 is arranged between the hollow shaft 1 and the plunger 12 which can be displaced, which precisely determines the relative displacement between these two parts and converts it into a manipulated variable which influences the displacement drive 5 for the reel housing 3, specifically in the Way that the reel housing 3 is moved completely automatically and in each case by the appropriate amount on the stationary reel bed 4 in the opposite direction to the axial adjustment of the drum segments 8.
  • a control value sensor 23 can be used as the control element for the control valve 22 which effects the hydraulic supply to the displacement drive, in that on the one hand the measured variable determined by the measuring device 21 is continuously entered and which on the other hand is influenced by a distance measuring device 24 arranged between the reel bed 4 and the reel housing 3.
  • the measuring device 21 and the distance measuring device 24 work together with the actuating value transmitter 23 in such a way that the latter keeps the control valve 22 open as long as there is a difference between the measured values determined by the measuring device 21 and the measured values by the distance measuring device 24. Only when the difference between the two measured values determined by the measuring device 21 and the distance measuring device 24 in the manipulated-value transmitter 23 has become zero, does the manipulated-value transmitter 23 close the locking valve 22 and thus put the sliding drive 5 out of operation.
  • the displacement drive 5 is inevitably controlled in the direction of the arrow 26 so that it moves in the opposite direction to the displacement direction 25 of the reel drum 10 and thereby always holds the band collar 17 exactly on the drainage medium level 20-20.
  • the displacement drive 5 in this case can stop it Limit switches 18 can be used simultaneously to make the distance measuring device 24 effective.
  • both the measuring device 21 and the distance measuring device 24 work capacitively or inductively and to design the associated actuating value transmitter 23 as a measuring pressure which, depending on its respective state, either opens or closes the control valve 22.
  • the above-described measures can be used to create a rolled strip reel, the reel drum 10 of which is completely automatically and precisely aligned with the predetermined center flow level 20-20, although its segments 8 are used for the purpose of spreading or contracting relative to that they carrying hollow shaft 1 must be subjected to an axial displacement.

Description

Die Erfindung betrifft ein Verfahren zum Betrieb eines Walzbandhaspels, dessen Trommel aus mehreren spreizbaren Segmenten besteht, welche sich mit keilförmig ausgebildeten Auflageflächen axial verschiebbar gegen eine in einem Haspelgehäuse drehbar gelagerte Hohlwelle abstützen und mittels eines in der Hohlwelle angeordneten und mittels eines Stellantriebes verstellbaren Stempels verstellt werden, wobei das Haspelgehäuse zur Aufnahme des Bandbundes auf die Trommel mittels eines Verschiebeantriebes, zunächst in der Richtung zum Bandbund hin und anschließend beim Spreizen der Segmente zum Eliminieren der relativen Axialverschiebung zwischen den Segmenten und der Hohlwelle in der hierzu erforderlichen Richtung auf seinem Führungsbett parallel zur Trommelachse verschoben wird.The invention relates to a method for operating a rolled strip reel, the drum of which consists of a plurality of expandable segments which, with wedge-shaped support surfaces, are axially displaceably supported against a hollow shaft rotatably mounted in a reel housing and are adjusted by means of a stamp arranged in the hollow shaft and adjustable by means of an actuator , the reel housing for receiving the band bundle on the drum by means of a sliding drive, first in the direction of the band bundle and then when spreading the segments to eliminate the relative axial displacement between the segments and the hollow shaft in the required direction on its guide bed parallel to the drum axis is moved.

Ferner befaßt sich die Erfindung mit einem Walzbandhaspel, dessen Trommel aus mehreren spreizbaren Segmenten besteht, welche sich mit keilförmig ausgebildeten Auflageflächen axial verschiebbar gegen eine in einem Haspelgehäuse drehbar gelagerte Hohlwelle abstützen, die einen in der Hohlwelle angeordneten und mittels eines Stellantrieibes zum = Spreizen der Trommelsegmente unter gleichzeitiger Axialverschiebung derselben verstellbaren Stempel besitzt, und die mit einem das Ein- und Ausschieben der Haspeltrommel relativ zum. Bandbund und/oder die Bandmittensteuerung bewirkenden Verschiebeantrieb für das Haspelgehäuse ausgerüstet ist.Furthermore, the invention is concerned with a rolled strip reel, the drum of which consists of a plurality of expandable segments which, with wedge-shaped support surfaces, are axially displaceably supported against a hollow shaft which is rotatably mounted in a reel housing and which is arranged in the hollow shaft and by means of an actuating drive for spreading the drum segments with simultaneous axial displacement of the same adjustable stamp, and which with a pushing in and out of the reel drum relative to. Band bundle and / or the slider drive effecting the center of the strip control is equipped for the reel housing.

Durch die DE-AS 10 07 279 und die DE-PS 17 52 185 sind bereits Walzbandhaspel bekannt, deren Trommel aus mehreren spreizbaren Segmenten besteht, welche sich mit keilförmig ausgebildeten Auflageflächen axial verschiebbar unmittelbar gegen eine in einem Haspelgehäuse drehbar gelagerte, zentrale Hohlwelle abstützen, und dabei mittels eines in der Hohlwelle angeordneten Stempels relativ zu diesem verstellt werden.From DE-AS 10 07 279 and DE-PS 17 52 185, roll coiler is already known, the drum of which consists of several expandable segments which are supported axially displaceably with wedge-shaped bearing surfaces directly against a central hollow shaft rotatably mounted in a reel housing, and can be adjusted relative to the latter by means of a plunger arranged in the hollow shaft.

Solche Wandbandhaspel sind insofern vorteilhaft, als durch die unmittelbare Abstützung der Trommelsegmente am Umfang der Hohlwelle verhältnismäßig kleine Baumaße erreicht werden können, die eine beträchtliche Verminderung der Schwungmomente zur Folge haben. Hierdurch reduzieren sich naturgemäß auch die während des Betriebs auftretenden Beschleunigungs-, Brems- und Schnellstopmomente. Die Lagerdurchmesser für die Haspelwelle können beträchtlich verringert werden, so daß selbst bei Erhöhung der Betrieibsdrehzahlen der Lagerverschleiß verringert wird.Wall reels of this type are advantageous in that the direct support of the drum segments on the circumference of the hollow shaft enables relatively small dimensions to be achieved, which result in a considerable reduction in the moment of inertia. This naturally also reduces the acceleration, braking and quick stop moments that occur during operation. The bearing diameter for the reel shaft can be reduced considerably, so that the bearing wear is reduced even when the operating speeds are increased.

Eine Unzulänglichkeit bei den Walzbandhaspeln nach der DE-AS 10 07 279 und der DE-PS 17 52 185 liegt jedoch darin, daß beim Spreizen der Trommelsegmente zugleich eine Axialverschiebung derselben relativ zur Haspelwelle stattfindet, welche den ordnungsgemäßen Ablauf des Walzbandes in die dem Haspel nachgeordneten Weiterverarbeitungsanlagen beeinträchtigen kann, wenn im Anschluß an die Festspannung des Bandbundes auf der Haspeltrommel keine entsprechende Lagenkorrektur des gesamten Haspels relativ zur nachgeordneten Weiterverarbeitungsanlage vorgenommen wird. Eine solche Lagenkorrektur des gesamten Walzbandhaspels läßt sich zwar mit Hilfe des Verschiebeantriebes bewirken, welcher einerseits für das Ein- und Ausschieben der Haspeltrommel relativ zum Bandbund und/oder auch zur Mittensteuerung des Bandbundes ebenso erforderlich ist. Die Vornahme einer solchen nachträglichen Lagenkorrektur ist jedoch verhältnismäßig zeitraubend und erfordert außerdem viel Geschicklichkeit der Bedienungsleute.An inadequacy in the rolled strip reels according to DE-AS 10 07 279 and DE-PS 17 52 185, however, lies in the fact that when the drum segments are spread, there is at the same time an axial displacement thereof relative to the reel shaft, which subordinates the proper course of the rolled strip into the reel Further processing systems can adversely affect if no subsequent position correction of the entire reel relative to the downstream further processing system is carried out following the fixed tension of the band coil on the reel drum. Such a position correction of the entire rolled strip reel can indeed be brought about with the aid of the displacement drive, which is also necessary on the one hand for pushing in and out the reel drum relative to the strip coil and / or for center control of the strip coil. However, performing such a posture correction is relatively time consuming and also requires a great deal of skill on the part of the operators.

Ein gattungsfremder Walzbandhaspel, dessen Trommel aus mehreren spreizbaren Segmenten besteht, welche sich mit keilförmig ausgebildeten Auflageflächen axial verschiebbar gegen eine in einem Haspelgehäuse drehbar gelagerte volle Welle abstützen und mittels einer Einstellvorrichtung verstellt werden, ist durch die US-PS 34 56 893 bekannt geworden. Dieser Walzbandhaspel wird mittels einer auf der vollen Welle axial verschiebbar angeordneten Hülse, die mit den Segmenten verbunden ist, gespreizt. Der Spreizantrieb zum Bewegen der Hülse dient gleichzeitig als Verschiebeantrieb für das Haspelgehäuse, wobei die das Spreizen der Trommelsegmente bewirkende Axialverschiebung von der Primärbewegungder Verschiebebewegung des Haspelgehäusesabgeleitet wird. Dadurch ist ein beträchtlicher mechanischer Aufwand für die Doppelfunktion des Stellantriebes notwendig.A non-generic roll coiler, the drum of which consists of several expandable segments, which are supported axially displaceably with wedge-shaped bearing surfaces against a full shaft rotatably mounted in a reel housing and are adjusted by means of an adjusting device, has become known from US Pat. No. 3,456,893. This roll coiler is spread by means of a sleeve which is axially displaceable on the full shaft and is connected to the segments. The expansion drive for moving the sleeve serves at the same time as a displacement drive for the reel housing, the axial displacement causing the expansion of the drum segments to be derived from the primary movement of the displacement movement of the reel housing. As a result, considerable mechanical effort is required for the double function of the actuator.

Durch die DE-OS 26 59 344 und die US-PS 25 66 629 sind Walzbandhaspel bekannt gewordenen, bei denen der Spreizantrieb der Trommelsegmente durch doppelt beaufschlagbare Hydraulikzylinder bewirkt wird. Ein Verschiebeantrieb für das Haspelgehäuse und damit auch eine Wirkverbindung zwischen dem Spreizantrieb und dem Verscheibeantrieb sind aber nicht offenbart.From DE-OS 26 59 344 and US-PS 25 66 629 roll coiler have become known, in which the expansion drive of the drum segments is effected by hydraulic cylinders which can be acted upon twice. However, a displacement drive for the reel housing and thus also an operative connection between the spreading drive and the disk drive are not disclosed.

Durch das Buch "Hydraulik im Werkzeugmaschinenbau" (von A. Dürr und 0. Wachter, S. 238 bis 241) gehören Kopier- und Nachlaufsteuerungen zum Stande der Technik, bei denen ein in einer Schablone gesteuerter Paßstift einen Stellzylinder derart steuert, daß dieser eine der Bewegung des Paßstiftes gleichgerichtete Stellbewegung ausführt.Through the book "Hydraulics in machine tool construction" (by A. Dürr and 0. Wachter, pp. 238 to 241), copy and overrun controls belong to the state of the art, in which a dowel pin controlled in a template controls an actuating cylinder in such a way that this one executes the movement of the dowel in the same direction.

Der Erfindung liegt die Aufgabe zugrunde, mit geringem technischem Mehraufwand zu erreichen, daß unmittelbar nach dem Spannvorgang ein einwandfreies Abwickeln des Walzbandes vom Bandbund erfolgen kann, und daß die Verschiebebewegung für das Haspelgehäuse auf dem Haspelbett mittelbar von der Spreizbewegung der Trommelsegmente abhängig gemacht wird.The invention has for its object to achieve with little additional technical effort that the unwinding of the rolled strip from the coil can take place immediately after the tensioning process, and that the displacement movement for the reel housing on the reel bed is made indirectly dependent on the spreading movement of the drum segments.

Die Lösung dieser Aufgabe wird verfahrenstechnisch auf einfache Weise dadurch erreicht, daß das Ausmaß der Relativ-verscheibung zwischen den Segmenten und der Hohlwelle abgegriffen und gegenkoppelnd in die entgegensetzte Verschiebebewegung des Haspelgehäuses auf dem Haspelbett von entsprechender Größe umgesetzt wird.In terms of process engineering, this object is achieved in a simple manner by tapping the extent of the relative glazing between the segments and the hollow shaft and converting it into negative feedback into the opposite displacement movement of the reel housing on the reel bed of the appropriate size.

Aufgrund dieser verfahrenstechnischen Maßnahme behalten die Trommelsegmente während ihrer das Festspannen des Bandbundes bezweckenden Bewegung immer ihre vorbestimmte Relativlage zur Einlauf-Mittellinie der dem Haspel nachgeordneten Verarbeitungsanlagen bei und stellen damit sicher, daß der Walzbandhaspel unmittelbar nach Beendigung des Spannvorganges ohne weiteres in Betrieb gesetzt werden kann.As a result of this procedural measure, the drum segments always maintain their predetermined relative position to the center line of the infeed of the processing systems downstream of the reel during their movement for tightening the coil, thus ensuring that the rolled reel can be put into operation immediately after the tensioning process has ended.

Nach einer verfahrenstechnischen Weiterbildung hat es sich als vorteilhaft erwiesen, wenn erfindungsgemäß die Relativverschiebung des Stempels zur Hohlwelle gemessen und als Stellgröße für den gegenläfig gerichteten Verschiebeantrieb des Haspelgehäuses benutzt wird. Da nämlich die Relativverschiebung des Stempels zur Hohlwelle der Relativverschiebung zwischen den Segmenten der Haspeltrommel und der sie tragenden und führenden Hohlwelle entspricht, läßt sich auf diesem Wege die jeweilige Korrekturgröße einfach und mit geringstmöglichem relativem Fehler ermitteln.According to a further development in process engineering, it has proven to be advantageous if, according to the invention, the relative displacement of the plunger to the hollow shaft is measured and used as a manipulated variable for the oppositely directed displacement drive of the reel housing. Since the relative displacement of the plunger relative to the hollow shaft corresponds to the relative displacement between the segments of the reel drum and the hollow shaft carrying and guiding it, the respective correction quantity can be determined in this way easily and with the least possible relative error.

Ein Walzbandhaspel zur Ausübung dieses Verfahrens dessen Trommel aus mehreren spreizbaren Segmenten besteht, welche sich mit keilförmig ausgebildeten Auflageflächen axial verschiebbar gegen eine in einem Haspelgehäuse drehbar gelagerte Hohlwelle abstützen, wobei die Trommel einen in der Hohlwelle angeordneten und mittels eines Stellantriebes zum Spreizen der Trommelsegmente unter gleichzeitiger Axialverschiebung derselben verstellbaren Stempels besitzt und mit einem das Ein- und Ausschieben der Haspeltrommel relativ zum Bandbund und/oder die Bandmittensteuerung bewirkenden Verschiebeantrieb für das Haspelgehäuse ausgerüstet ist, zeichnet sich erfindungsgemäß im wesentlichen dadurch aus, daß zwischen den Segmenten und der Hohlwelle eine Meßvorrichtung zur Messung der relativen Axialverschiebung zwischen den Segmenten und der Hohlwelle angeordnet ist, die mit einem Steuerorgan für die entgegengesetzte Betätigung des Verschiebeantriebes in Verbindung steht.A roll coiler for carrying out this method, the drum of which consists of several expandable segments which are supported axially displaceably with wedge-shaped bearing surfaces against a hollow shaft rotatably mounted in a reel housing, the drum being arranged in the hollow shaft and by means of an actuator for spreading the drum segments at the same time Axial displacement of the same adjustable plunger and equipped with a displacement drive for the reel housing, which causes the reel drum to be pushed in and out relative to the band bundle and / or the band center control, is essentially distinguished according to the invention in that a measuring device for measurement is located between the segments and the hollow shaft the relative axial displacement between the segments and the hollow shaft is arranged, which is connected to a control element for the opposite actuation of the displacement drive.

Hierbei hat es sich als besonders vorteilhaft erwiesen, wenn nach einem weiteren Merkmal der Erfindung die Meßvorrichtung mit dem hinteren Ende des die Segmente verschiebenden Stempels in Stellverbindung steht und daß dem Verscheibeantrieb zugeordnete Steuerorgan einerseits durch die Meßvorrichtung und andererseits durch eine Streckenmeßvorrichtung zwischen Haspelgehäuse und Haspelbett wegabhängig ein- und verstellbar ist.Here, it has proven to be particularly advantageous if, according to a further feature of the invention, the measuring device is in actuating connection with the rear end of the stamp displacing the segments and that the control element assigned to the disk drive is path-dependent on the one hand by the measuring device and on the other hand by a distance measuring device between the reel housing and the reel bed is adjustable and adjustable.

Schließlich wird ein Erfindungsmerkmal auch noch darin gesehen, daß sowohl der Spreizantrieb für die Trommelsegmente als auch der Verschiebeantrieb für das Haspelgehäuse jeweils aus einem doppelt wirkenden Hydraulikzylinder besteht, und daß die Druckflüssigkeitszufuhr zum Verschiebeantrieb über ein durch die Meßvorrichtung steuerbares Regelventil beeinflußbar ist.Finally, an inventive feature is also seen in the fact that both the expansion drive for the drum segments and the displacement drive for the reel housing each consist of a double-acting hydraulic cylinder, and that the hydraulic fluid supply to the displacement drive can be influenced by a control valve controllable by the measuring device.

Anhand einer Zeichnung soll die Erfindung nunmehr im einzelnen erläutert werden. Es zeigt

  • Fig. 1 in schematisch vereinfachter Seitenansicht einen Walzbandhaspel nach der Erfindung vor dem Einfahren der Haspeltrommel in den Bandbund,
  • Fig. 2 eine der Fig. 1 entsprechende Darstellung des Walzbandhaspels mit in die Offnung des Bandbundes axial eingefahrener, jedoch nicht kontrahierter Haspeltrommel,
  • Fig. 3 wiederum in schematisch vereinfachter Seitenansicht den Walzbandhaspel nach den Fig. 1 und 2 mit zum Feslegen des Bandbundes radial gespreizter Trommel, während
  • Fig. 4 in größerem Maßstab und teilweise im Schnitt den Aufbau der Haspeltrommel wiedergibt und zwar in der unteren Hälft mit kontrahiertem und in der oberen Hälfte mit gespreizten Segmenten.
The invention will now be explained in detail with reference to a drawing. It shows
  • 1 is a schematically simplified side view of a roll coiler according to the invention before the reel drum is moved into the coil,
  • 2 shows a representation of the rolled strip reel corresponding to FIG. 1 with the reel drum axially retracted but not contracted into the opening of the strip bundle,
  • Fig. 3 again in a schematically simplified side view of the roll coiler according to FIGS. 1 and 2 with the drum for radially spreading the band bundle, while
  • Fig. 4 shows on a larger scale and partly in section the structure of the reel drum, in the lower half with contracted and in the upper half with spread segments.

In der Zeichnung ist ein Walzbandhaspel gezeigt, dessen Hohlwelle 1 axial verschiebbar, jedoch drehantreibbar in Wälzlagern 2 des Haspelgehäuses 3 lagert. Das Haspelgehäuse ist dabei auf einem ortsfesten Haspelbett 4 in Richtung der Längsachse der Hohlwelle 1 verschiebbar geführt und läßt sich auf diesem durch einen, beispielsweise als Hydraulikzylinder ausgebildeten Verschiebeantrieb 5 bewegen.In the drawing, a rolled strip reel is shown, the hollow shaft 1 of which is axially displaceable but rotatably driven in roller bearings 2 of the reel housing 3. The reel housing is guided displaceably on a stationary reel bed 4 in the direction of the longitudinal axis of the hollow shaft 1 and can be moved thereon by a displacement drive 5, for example a hydraulic cylinder.

An ihrem vorderen, fliegend angeordneten Ende ist die Hohlwelle 1 mit keilförmig angeordneten Auflageflächen 7 versehen, auf denen mehrere, beispielsweise vier, Segmente 8 über ebenfalls keilförmig ausgebildete Stützflächen 9 gehalten und geführt sind. Die Segmente 8 bilden dabei gemeinsam die eigentliche Haspeltrommel 10, welche sich bedarfsweise in Radialrichtung spreizen oder aber zusammenziehen läßt, und zwar dadurch, daß die mit ihren keilförmigen Stützflächen 19 auf den keilförmigen Auflageflächen 7 der Hohlwelle 1 gehaltenen Segmente 8 gleichzeitig relativ zur Hohlwelle 1 axial verschoben werden.At its front, overhung end, the hollow shaft 1 is provided with wedge-shaped support surfaces 7, on which several, for example four, segments 8 are held and guided via support surfaces 9 which are also wedge-shaped. The segments 8 together form the actual reel drum 10, which can be expanded or contracted, if necessary, in that the segments 8 held with their wedge-shaped support surfaces 19 on the wedge-shaped bearing surfaces 7 of the hollow shaft 1 simultaneously axially relative to the hollow shaft 1 be moved.

Die Axialverschiebung der Segmente 8 relativ zur Hohlwelle 1 wird durch einen Stempel 12 erzwungen, welcher zentrisch in der Hohlwelle 1 geführt ist, vor dem vorderen Ende der Hohlwelle 1 über einen Mitnehmerflansch 13 an den Segmenten 8. angreift und durch einen am hinteren Ende der Hohlwelle 1 angeordneten Hydraulikzylinder 14 axial verschoben werden kann.The axial displacement of the segments 8 relative to the hollow shaft 1 is forced by a plunger 12, which is guided centrally in the hollow shaft 1, engages the segments 8 in front of the front end of the hollow shaft 1 via a driver flange 13 and by one at the rear end of the hollow shaft 1 arranged hydraulic cylinder 14 can be moved axially.

Wie Fig. 4 in der unteren Hälfte erkennen läßt, ist die Haspeltrommel 10 radial zusammengezogen bzw. kontrahiert, wenn der Stempel 12 durch den Hydraulikzylinder 14 nach links geschoben wurde. Zum Spreizen der Trommel 10 ist es hingegen notwendig, den Stempel 12 durch den Hydraulikzylinder 14 nach rechts zu ziehen, wie das aus der oberen Hälfte der Fig. 4 hervorgeht.4 in the lower half leaves, the reel drum 10 is contracted radially or contracted when the plunger 12 has been pushed to the left by the hydraulic cylinder 14. To spread the drum 10, however, it is necessary to pull the punch 12 through the hydraulic cylinder 14 to the right, as can be seen from the upper half of FIG. 4.

Zum Zwecke des radialen Spreizens und Zusammenziehens der Haspeltrommel 10 ist dabei eine Axialverschiebung des Stempels 12 maximal um das Maß 15 relativ zur Hohlwelle 1 bzw. eine entsprechende Axialverschiebung der einzelnen Segmente 8 um das Maß 16 relativ zur Hohlwelle 1 notwendig (Fig. 4).For the purpose of radial expansion and contraction of the reel drum 10, an axial displacement of the plunger 12 by a maximum of dimension 15 relative to the hollow shaft 1 or a corresponding axial displacement of the individual segments 8 by a dimension 16 relative to the hollow shaft 1 is necessary (FIG. 4).

Zum Zwecke der Aufnahme des Bandbundes 17 durch die Haspeltrommel 10 muß zunächst der gesamte Walzband-Haspel bei radial zusammengezogener Haspeltrommel 10 auf dem ortsfesten Haspelbett 5 aus der Stellung nach Fig. 1 in die Stellung nach Fig. 2 geschoben werden. Diese Bewegung wird durch den Verschiebeantrieb 5 bewirkt und beispielsweise durch einen Endschalter 18 begrenzt, indem dieser die Zufuhr der Hydrualikflüssigkeit zum Hydraulikzylinder 5 unterbricht. Dabei bestimmt der Endschalter 18 die den ordnungsgemäßen Bandablauf in die Weiterverarbeitungsanlage gewährleistende Grundstellung des Walzband-Haspels. Diese Grundstellung des Walzband-Haspels läßt sich dann bedarfsweise wälirend des Abwickelbetriebs noch durch eine sogenannte Bandmittensteuerung selbsttätig korrigieren, und zwar durch entsprechende Beeinflussung des Verschiebeantriebs 5.For the purpose of receiving the band coil 17 by the reel drum 10, the entire rolled strip reel with the radially contracted reel drum 10 must first be pushed onto the stationary reel bed 5 from the position according to FIG. 1 into the position according to FIG. 2. This movement is brought about by the displacement drive 5 and, for example, limited by a limit switch 18, in that this interrupts the supply of the hydraulic fluid to the hydraulic cylinder 5. In this case, the limit switch 18 determines the basic position of the rolled strip reel which ensures the proper strip run into the further processing system. This basic position of the rolled strip coiler can then be corrected automatically during the unwinding operation by a so-called strip center control, by influencing the displacement drive 5 accordingly.

Bevor jedoch der Walzband-Haspel zum Abwickeln Bandes in Betrieb gesetzt werden kann, muß zunächst die Haspeltrommel 10 innerhalb der zentrischen Öffnung 19 des Bandbundes 17 gespreizt werden. Da aber diese Spreizbewegung mit einer Axialverschiebung der Trommelsegmente 8 relativ zur Hohlwelle 1 bzw. zum Haspelgehäuse 3 einhergeht, muß dafür gesorgt werden, daß die hieraus resultierende Axialverlagerung des Bandbundes 17 aus seiner Ablauf-Mittelebene 20-20 praktisch vollständig eliminiert wird. Um das zu erreichen, ist zwischen der Hohlwelle 1 und dem darn verschiebbaren Stempel 12 eine Meßvorrichtung 21 angeordnet, welche die jeweilige Relativverschiebung zwischen diesen beiden Teilen exakt ermittelt und in eine Stellgröße umformt, welche den Verschiebeantrieb 5 für das Haspelgehäuse 3 beeinflußt und zwar in der Weise, daß das Haspelgehäuse 3 völlig selbsttätig und jeweils um das entsprechende Ausmaß auf dem ortsfesten Haspelbett 4 in entgegengesetzter Richtung zur Axialverstellung der Trommelsegmente 8 verschoben wird.However, before the rolled strip reel can be put into operation for unwinding the strip, the reel drum 10 must first be spread within the central opening 19 of the coil 17. However, since this spreading movement is accompanied by an axial displacement of the drum segments 8 relative to the hollow shaft 1 or to the reel housing 3, care must be taken to ensure that the resulting axial displacement of the band collar 17 from its running center plane 20-20 is practically completely eliminated. In order to achieve this, a measuring device 21 is arranged between the hollow shaft 1 and the plunger 12 which can be displaced, which precisely determines the relative displacement between these two parts and converts it into a manipulated variable which influences the displacement drive 5 for the reel housing 3, specifically in the Way that the reel housing 3 is moved completely automatically and in each case by the appropriate amount on the stationary reel bed 4 in the opposite direction to the axial adjustment of the drum segments 8.

Als Steuerorgan für das die Hydraulikzufuhr zum Verschiebeantrieb bewirkende Regelventil 22 kann dabei ein Stellwertgeber 23 Verwendung finden, indem einerseits fortwährend die von der Meßvorrichtung 21 ermittelten Meßgröße eingegeben werden und welche andererseits von einer zwischen dem Haspelbett 4 und dem Haspelgehäuse 3 angeordneten Streckenmeßvorrichtung 24 beeinflußt wird. Die Meßvorrichtung 21 und die Streckenmeßvorrichtung 24 arbeiten dabei mit dem Stellwertgeber 23 in der Weise zusammen, daß letzterer das Regelventil 22 geöffnet hält, solange eine Differenz zwischen den von der Meßvorrichtung 21 und den von der Streckenmeßvorrichtung 24 ermittelten Meßwerten besteht. Erst wenn die Differenz zwischen den beiden von der Meßvorrichtung 21 und der Streckenmeßvorrichtung 24 ermittelten Meßwerte im Stellwertgeber 23 Null geworden ist, schließt der Stellwertgeber 23 das Riegelventil 22 und setzt damit den Verschiebeantrieb 5 außer Betrieb.A control value sensor 23 can be used as the control element for the control valve 22 which effects the hydraulic supply to the displacement drive, in that on the one hand the measured variable determined by the measuring device 21 is continuously entered and which on the other hand is influenced by a distance measuring device 24 arranged between the reel bed 4 and the reel housing 3. The measuring device 21 and the distance measuring device 24 work together with the actuating value transmitter 23 in such a way that the latter keeps the control valve 22 open as long as there is a difference between the measured values determined by the measuring device 21 and the measured values by the distance measuring device 24. Only when the difference between the two measured values determined by the measuring device 21 and the distance measuring device 24 in the manipulated-value transmitter 23 has become zero, does the manipulated-value transmitter 23 close the locking valve 22 and thus put the sliding drive 5 out of operation.

Da die Meßvorrichtung 21 und die Streckenmeßvorrichtung 24 gegenläufig arbeiten, wird der Verschiebeantrieb 5 zwangsläufig in Pfeilrichtung 26 so gesteuert, daß er sich entgegengesetzt zur Verschieberichtung 25 der Haspeltrommel 10 bewegt und dadurch den Bandbund 17 immer exakt auf der Ablaufmittelebene 20-20 hält.Since the measuring device 21 and the distance measuring device 24 work in opposite directions, the displacement drive 5 is inevitably controlled in the direction of the arrow 26 so that it moves in the opposite direction to the displacement direction 25 of the reel drum 10 and thereby always holds the band collar 17 exactly on the drainage medium level 20-20.

Da die Streckenmeßvorrichtung 24 zwischen dem Haspelbett 4 und dem Haspelgehäuse 3' erst in Tätigkeit treten darf, nachdem der Walzband-Haspel aus der Stellung nach Fig. 1 in die Stellung nach Fig. 2 gefahran ist, kann der in diesem Falle den Verschiebeantrieb 5 stillsetzende Endschalter 18 gleichzeitig benutzt werden, um die Streckenmeßvorrichtung 24 wirksam zu machen.Since the distance measuring device 24 between the reel bed 4 and the reel housing 3 'may only come into action after the rolled strip reel has moved from the position according to FIG. 1 into the position according to FIG. 2, the displacement drive 5 in this case can stop it Limit switches 18 can be used simultaneously to make the distance measuring device 24 effective.

Es ist ohne weiteres möglich, sowohl die Meßvorrichtung 21 als auch die Streckenmeßvorrichtung 24 auf kapazitivem oder induktivem Wege arbeiten zu lassen und den zugehörigen Stellwertgeber 23 als eine Meßrücke auszubilden, die in Abhängigkeit von ihrem jeweiligen Zustand das Regelventil 22 entweder öffnet oder schließt.It is easily possible to have both the measuring device 21 and the distance measuring device 24 work capacitively or inductively and to design the associated actuating value transmitter 23 as a measuring pressure which, depending on its respective state, either opens or closes the control valve 22.

Mit einem geringen technischen Mehraufwand läßt sich durch die vorstehend bestriebenen Maßnahmen ein Walzband-Haspel erstellen, dessen Haspeltrommel 10 völlig selbsttätig und exakt auf die vorbestimmte Ablauf-Mittelebene 20-20 ausgerichtet wird, obwohl deren Segmente 8 zum Zwecke des Spreizens oder kontrahierens relativ zu der sie tragenden Hohlwelle 1 einer Axialverschiebung unterworfen werden müssen.With a little additional technical effort, the above-described measures can be used to create a rolled strip reel, the reel drum 10 of which is completely automatically and precisely aligned with the predetermined center flow level 20-20, although its segments 8 are used for the purpose of spreading or contracting relative to that they carrying hollow shaft 1 must be subjected to an axial displacement.

Abschließend sei noch darauf hingewiesen, daß die vorstehend beschriebene Betriebsweise und die zu deren Ausübung vorgesehene Steueranordnung nicht nur bei Walzband-Haspeln mit einer fliegend gelagerten Haspeltrommel benutzt werden können. Vielmehr sind sie auch bei sogenannten Doppelhaspeln gleichermaßen gut einsetzbar, bei welchen zwei Haspeltrommein 10 von entgegengesetzten Seiten her in ein und denselben Bandbund eingefahren werden.Finally, it should also be pointed out that the above-described mode of operation and the control arrangement provided for exercising it can not only be used in the case of rolled strip reels with an overhung reel drum. Rather, they can also be used equally well in so-called double reels, in which two reel drums 10 are inserted into the same band bundle from opposite sides.

Claims (5)

1. Method for the operation of a rolled strip capstan, the drum of which consists of several spreadable segments which by bearing surfaces formed in wedge shape bear axially displaceably against a hollow shaft rotatably borne in a capstan housing and displaced by means of a plunger which is arranged in the hollow shaft and displaoeable by means of a setting drive, wherein the capstan housing is displaced on its guide bed parallelly to the drum axle for the reception of the strip coil onto the drum by means of a displacing drive initially in the direction of the strip coil and subsequently, during the spreading of the segments for the elimination of the relative axial displacement between the segments and the hollow shaft, in the direction required for this, characterised thereby, that the extent of the relative displacement (15 or 16) between the segments (8) and the hollow shaft (1) is detected (21) and translated degeneratively into the opposite displacement of the capstan housing (3) on the capstan bed (4) of appropriate magnitude.
2. Method according to claim 1, characterised thereby, that the displacement (15) of the plunger (12) relative to the hollow shaft (1) is measured (21) and utilised as setting magnitude for the oppositely directed displacement drive (5) of the capstan housing (3).
3. Rolled strip capstan for the exercise the method according to the claims 1 and 2, wherein the drum of the rolled strip capstan consists of several spreadable segments which by bearing surfaces formed in wedge shape bear axially displaceably against a hollow shaft rotatably borne in a capstan housing and furthermore possesses a plunger which is arranged in the hollow shaft and displaceable by means of a setting drive for the spreading of the drum segments with simultaneous axial displacement of the same and is equipped with a displacing drive, for the capstan housing, effecting the pushing in and out of the capstan drum relative to the strip coil and/or the strip centring control, characterised thereby, that a measuring device (21) for the measurement of the relative axial displacement between the segments and the hollow shaft (12) is arranged between the segments (8) and the hollow shaft (1) and stands in connection with a control organ (22) for the opposite actuation of the displacing drive (5).
4. Rolled strip capstan according to claim 3, characterised thereby, that the measuring device (21) stands in setting connection with the rear end of the plunger (12) displacing the segments (8) and that the control organ (22) associated with the displacing drive (5) is settable and resettable (23) in dependence on travel on the one hand by the measuring device (21) and on the other hand by a distance measuring device (24) between capstan housing (3) and capstan bed (4).
5. Rolled strip capstan according to the claims 3 and 4, characterised thereby, that the spreading drive (14) for the drum segments (8) as well as also the displacing drive (5) for the capstan housing (3) each consist of a respective double-acting hydraulic cylinder and that the pressure fluid feed to the displacing drive (5) is influenceable through a regulating valve (22) controllable through the measuring device (21 and 24).
EP79100375A 1978-04-25 1979-02-09 Method of operating a metal band reel and a reel for carrying out this method Expired EP0004854B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2818042 1978-04-25
DE19782818042 DE2818042A1 (en) 1978-04-25 1978-04-25 PROCEDURE FOR OPERATING A ROLLED STRIP REEL AND ROLLED STRIP REEL FOR EXERCISING THE PROCESS

Publications (2)

Publication Number Publication Date
EP0004854A1 EP0004854A1 (en) 1979-10-31
EP0004854B1 true EP0004854B1 (en) 1983-03-09

Family

ID=6037943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100375A Expired EP0004854B1 (en) 1978-04-25 1979-02-09 Method of operating a metal band reel and a reel for carrying out this method

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US (1) US4210294A (en)
EP (1) EP0004854B1 (en)
JP (1) JPS54142162A (en)
DE (2) DE2818042A1 (en)

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US4406290A (en) * 1979-05-24 1983-09-27 Walbeoffe Wilson John H Wrist-type pulse monitor
DE3150319A1 (en) * 1981-12-18 1983-06-30 Bajzur, Ljudmila Grigor'evna, Kramatorsk Reel for metal strip
CH658004A5 (en) * 1982-09-16 1986-10-15 Alusuisse DEVICE FOR REWINDING TAPES.
DE3502452A1 (en) * 1985-01-25 1986-07-31 SMS Schloemann-Siemag AG, 4000 Düsseldorf REEL AND / OR REEL FOR ROLLER
DE3538677A1 (en) * 1985-10-31 1987-05-07 Schloemann Siemag Ag TURNING REEL
US4953806A (en) * 1987-02-16 1990-09-04 Sms Schloemann-Siemag Aktiengesellschaft Winding reel for rolled strip
DE3836195A1 (en) * 1988-10-24 1990-04-26 Windmoeller & Hoelscher DEVICE FOR WINDING MATERIAL COATS ON WRAPPING SLEEVES
FI81321C (en) * 1989-02-16 1990-10-10 Valmet Oy Paper machine drive unit or a paper finishing machine and a hydraulic drive system for this
DE59003432D1 (en) * 1989-08-22 1993-12-16 Schlumpf Ag Steinhausen Tensioning device on a device for winding and / or unwinding flat material webs.
DE19538262A1 (en) * 1995-10-13 1997-04-17 Neumag Gmbh Coil holder for one or more coils arranged one behind the other
IT1316672B1 (en) * 2000-02-28 2003-04-24 Sms Demag S P A WINDING AND UNWINDING DEVICE OF TAPES WITH AUTOMATIC CENTERING
DE102014200942B4 (en) 2014-01-20 2019-01-10 Achenbach Buschhütten GmbH & Co. KG Reel for winding strip-shaped material

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US2394503A (en) * 1942-10-19 1946-02-05 Acme Steel Co Winding reel
US2566629A (en) * 1946-07-19 1951-09-04 Homer D Paxson Expansible mandrel
US2587885A (en) * 1946-12-20 1952-03-04 Paxson Homer Daugherty Expansible mandrel
US2556149A (en) * 1947-10-23 1951-06-05 United Eng Foundry Co Apparatus for coiling strip material
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DE2120741B2 (en) * 1971-04-28 1975-06-12 Demag Ag, 4100 Duisburg Adjustment drive for the expansion segments of the winding mandrel of a reel for rolled strip
AT340862B (en) * 1976-02-26 1978-01-10 Voest Ag REEL, ESPECIALLY FOR TIN STRIP

Also Published As

Publication number Publication date
EP0004854A1 (en) 1979-10-31
JPS54142162A (en) 1979-11-06
DE2964979D1 (en) 1983-04-14
JPS6211928B2 (en) 1987-03-16
US4210294A (en) 1980-07-01
DE2818042A1 (en) 1979-11-08

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