EP0060964A1 - Apparatus for positioning a metal sheet coil opposite a reel - Google Patents

Apparatus for positioning a metal sheet coil opposite a reel Download PDF

Info

Publication number
EP0060964A1
EP0060964A1 EP81890179A EP81890179A EP0060964A1 EP 0060964 A1 EP0060964 A1 EP 0060964A1 EP 81890179 A EP81890179 A EP 81890179A EP 81890179 A EP81890179 A EP 81890179A EP 0060964 A1 EP0060964 A1 EP 0060964A1
Authority
EP
European Patent Office
Prior art keywords
measuring
lifting table
lifting
reel
stop
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.)
Granted
Application number
EP81890179A
Other languages
German (de)
French (fr)
Other versions
EP0060964B1 (en
Inventor
Karl Palmannshofer
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.)
Voestalpine AG
Original Assignee
Voestalpine 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3510648&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0060964(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0060964A1 publication Critical patent/EP0060964A1/en
Application granted granted Critical
Publication of EP0060964B1 publication Critical patent/EP0060964B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4172—Handling web roll by circumferential portion, e.g. rolling on circumference

Definitions

  • the invention relates to a device for aligning a coil of sheet metal with respect to a reel, consisting of a lifting table, the lifting drive of which can be actuated via a control depending on the position of two measuring stops which can be displaced relative to one another and which is formed on the one hand by the lifting table and on the other hand by at least one sensor are.
  • the two measuring stops can be moved in opposite directions and symmetrically to the axis of the reel, so that the collar lying on the lifting table is aligned with the reel when the counter-stop is reached. Since the sensor forming the measuring stop and the lifting table forming the other measuring stop are always equidistant from the reel axis due to their opposite movement, when the sensor, for example given by a light barrier, responds, the distance between the two measuring stops must correspond to the diameter of the coil, which the alignment of the coil with respect to the reel axis results.
  • the measuring stop designed as a sensor is first placed on the coil of metal and the removal of the lifting table of the reel axis compared to the distance between the sensor and the reel axis.
  • the lifting table is raised or lowered relative to the reel until the two distances are the same.
  • a disadvantage of these known devices is that either the adjustment path of the two measuring stops, that is to say the stroke of the lifting table and the displacement path of the sensor, or both measuring stops have to be moved in the same direction, which requires a comparatively complex and therefore prone to failure.
  • the actual coil diameter is not recorded in terms of size, so that the control system cannot take the coil size into account.
  • the drive and speed of the individual work steps must therefore be fixed and cannot be adapted to the size of the respective bundle.
  • the invention is therefore based on the object to avoid these deficiencies and to improve a device of the type described in such a way that alignment of the sheet metal coils with respect to a reel is ensured with simple constructional means, the control being able to be adapted to different coil diameters.
  • the invention achieves the stated object in that one of the two measuring stops is connected to a measuring device connected to the control for its adjustment path and that the other measuring stop is in a predetermined basic position at least during the adjustment path measurement.
  • the predefined basic position of the measuring stop that is not to be adjusted during the measurement nevertheless makes it possible to determine the diameter for the sheet metal bundle, because the bundle diameter results from the difference between the original distance between the two measuring stops and the adjustment path of the displaceable measuring stop. With the given distance between.
  • the lifting table which is in its basic position and the reel axis also determine the required stroke which lifts the coil of metal to the axis height of the reel.
  • the measurement of the collar diameter offers the advantage that, for example, the lifting speed, depending on the collar diameter, can be slowed down just before reaching the alignment position in order to ensure the smallest possible tolerances.
  • the coil weight can be determined via the coil diameter, which also allows a favorable adaptation of the drive to the coil to be treated.
  • the diameter can be recorded separately from the reel, so that the values obtained can already be used for the transport of the coil to the reel.
  • the measuring device consists of an incremental scale with a scanning unit and a counter connected to a computer for the scanning pulses of the scanning unit because the digital one Measurement a measurement accuracy predetermined by the incremental scale can be easily maintained and the scanning pulses counted in the counter immediately can be used for processing in the computer.
  • This computer belonging to the controller then outputs the desired calculation results or control pulses for controlling the individual drives in accordance with its program.
  • the lifting table can advantageously be connected to a measuring device for the stroke as an adjustable measuring stop. If the immovable measuring stop is a light barrier, a stop pulse can be obtained for the counter of the measuring device when the light barrier is interrupted, making any mechanical switch superfluous. If sheet metal coils with very different diameters are to be detected, it is advisable to provide two or more light barriers with a mutual distance in the lifting direction of the lifting table in order to be able to limit the lifting table to a maximum. With such a design, the sheet metal collar only needs to be raised or lowered regardless of its diameter to the next light barrier, as a result of which the maximum stroke is limited to the distance between two successive light barriers.
  • this counterstop is designed as an adjustable pressure stamp .
  • the protruding tape start is pressed against the collar by means of the pressure stamp, thus ensuring that the actual coil diameter is recorded.
  • the lifting table 1 of a trolley 3 movable on rails 2 is connected to a measuring device 4 for the lifting path of the lifting table 1.
  • This measuring device consists of an incremental scale 5, which can be designed, for example, as a toothed rack, and a scanning unit 6, which is connected to a counter 7.
  • the scanning unit for the incremental scale outputs scanning pulses to the counter 7 when the scale marks are passed, which counts these scanning pulses. The sum of the scanning pulses therefore corresponds to the number of measuring marks of the incremental scale run over by the scanning unit 6 and can be evaluated as a distance measure for a given measuring mark distance.
  • the scanning unit 6 can be designed differently, there are particularly simple conditions for the illustrated device if the scanning unit comprises the incremental scale designed as a toothed rack and carries a light source on one fork leg and a photoelectric element on the other fork leg. The light beam between the light source and the photoelectric element is interrupted by the teeth of the rack, whereby the required counting pulses are obtained.
  • two measuring stops 9 and 10 are required, of which one 10 is formed by the lifting table 1 and the other by at least one measuring sensor, one being a measuring sensor Offers light barrier 11 as particularly advantageous. If the sheet metal collar 8 is now raised from the basic position determined by the starting position of the lifting table 1 with the aid of the lifting table 1 until the stationary measuring stop 9 is reached by the federal government, the counter 7 of the measuring device 4 can be stopped via the measuring stop. Since the distance of the lifting table 1 is structurally predetermined and known in its starting position from the stationary measuring stop, the adjustment path of the lifting table 1 is a measure from which the collar diameter can be derived.
  • the collar diameter can be reached directly on the counter when the fixed measuring stop is reached be read. If the sheet metal collar 8 reaches a light barrier 11 when it is raised, the light beam is interrupted, which can be used to pass on a stop pulse to the counter 7 via a line 12.
  • the diameter detection for the sheet bundle 8 resting on the lifting table 1 does not yet ensure the alignment of this sheet bundle with respect to the reel axis. From the diameter, however, the required stroke for the lifting table 1 can be calculated, because again the distance of the reel axis from the coil carriage 3 and thus from the lifting table 1 is predetermined in its starting position.
  • the status of the counter 7 can be read into a computer 14 which, on the basis of its program, calculates the lifting path of the lifting table 1 necessary for aligning the sheet metal bundle with respect to the reel axis and the calculation result or a corresponding control signal to an actuating device 15 for a control valve 16 in the pressurization line 17 of the cylinder 13.
  • the determined coil diameter can also be used for additional tax tasks.
  • the coil diameter the initial number of revolutions required for a desired take-off speed for the reel is given.
  • the coil weight depends on the coil diameter, which allows weight-dependent drive control via the diameter detection. - Furthermore, with a given collar diameter, the lifting speed can be changed over from rapid to crawling in a favorable manner, so that the desired lifting position can be approached precisely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

1. Apparatus for aligning a sheet metal coil (8) with a coiler, comprising a lifting platform (1) and lifting drive means for lifting said platform, which lifting drive means are operable by a control system in dependence on the position of two measuring stops (9, 10) which are displaceable relative to each other and respectively consist of the lifting platform and at least one sensor, characterized in that one of the two measuring stops (9, 10) is connected to a measuring device (4), which measures the displacement of said one measuring stop and is connected to the control system, that the other measuring stop (10 or 9) is in a predetermined initial position at least during the measurement of the displacement, and that the extent to which the sheet metal coil (8) is to be moved for its alignment is computed by means of a computer (14) in dependence on the difference between the predetermined initial spacing of the two measuring stops (9, 10) and the measured displacement.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Ausrichten eines Blechbundes gegenüber einem Haspel, bestehend aus einem Hubtisch, dessen Hebeantrieb über eine Steuerung in Abhängigkeit von der Lage zweier relativ gegeneinander verschiebbarer Meßanschläge betätigbar ist, die einerseits durch den Hubtisch und anderseits durch wenigstens einen Meßfühler gebildet sind.The invention relates to a device for aligning a coil of sheet metal with respect to a reel, consisting of a lifting table, the lifting drive of which can be actuated via a control depending on the position of two measuring stops which can be displaced relative to one another and which is formed on the one hand by the lifting table and on the other hand by at least one sensor are.

Bei einer bekannten Vorrichtung dieser Art (AT-PS 277 124) sind die beiden Meßanschläge gegensinnig und symmetrisch zur Achse des Haspels verschiebbar, so daß der am Hubtisch liegende Bund beim Erreichen des Gegenanschlages gegenüber dem Haspel ausgerichtet ist. Da der den einen Meßanschlag bildende Fühler und der den anderen Meßanschlag bildende Hubtisch auf Grund ihrer gegensinnigen Bewegung stets gleich weit von der Haspelachse entfernt sind, muß beim Ansprechen des beispielsweise durch eine Lichtschranke gegebenen Meßfühlers der Abstand der beiden Meßanschläge dem Durchmesser des Blechbundes entsprechen, was die Ausrichtung des Blechbundes gegenüber der Haspelachse zur Folge hat.In a known device of this type (AT-PS 277 124), the two measuring stops can be moved in opposite directions and symmetrically to the axis of the reel, so that the collar lying on the lifting table is aligned with the reel when the counter-stop is reached. Since the sensor forming the measuring stop and the lifting table forming the other measuring stop are always equidistant from the reel axis due to their opposite movement, when the sensor, for example given by a light barrier, responds, the distance between the two measuring stops must correspond to the diameter of the coil, which the alignment of the coil with respect to the reel axis results.

Bei einer anderen bekannten Vorrichtung zum Aufbringen eines Bu_ndes auf einen Abwickelhaspel wird der als Meßfühler ausgebildete Meßanschlag zunächst auf den Blechbund aufgesetzt und die Entfernung des Hubtisches von der Haspelachse mit dem Abstand zwischen dem Meßfühler und der Haspelachse verglichen. Der Hubtisch wird zur Ausrichtung des Blechbundes gegenüber dem Haspel so lange gehoben oder gesenkt, bis die beiden Abstände gleich groß sind.In another known device for applying a band to a decoiler, the measuring stop designed as a sensor is first placed on the coil of metal and the removal of the lifting table of the reel axis compared to the distance between the sensor and the reel axis. To align the coil, the lifting table is raised or lowered relative to the reel until the two distances are the same.

Nachteilig bei diesen bekannten Vorrichtungen ist, daß entweder der Verstellweg beider Meßanschläge, also der Hub des Hubtisches und der Verschiehweg des Meßfühlers erfaßt oder beide Meßanschläge gleichsinnig bewegt werden müssen, was eine vergleichsweise aufwendige und damit störanfällige Konstruktion bedingt. Außerdem werden die tatsächlichen Bunddurchmesser nicht größenmäßig erfaßt, so daß die Steuerung die Bundgröße nicht berücksichtigen kann. Der Antrieb und die Geschwindigkeit der einzelnen Arbeitsgänge müssen folglich fest vorgegeben sein und können nicht an die jeweilige Bundgröße angepaßt werden.A disadvantage of these known devices is that either the adjustment path of the two measuring stops, that is to say the stroke of the lifting table and the displacement path of the sensor, or both measuring stops have to be moved in the same direction, which requires a comparatively complex and therefore prone to failure. In addition, the actual coil diameter is not recorded in terms of size, so that the control system cannot take the coil size into account. The drive and speed of the individual work steps must therefore be fixed and cannot be adapted to the size of the respective bundle.

Der Erfindung liegt demnach die Aufgabe zugrunde, diese Mängel zu vermeiden und eine Vorrichtung der eingangs geschilderten Art so zu verbessern, daß mit einfachen konstruktiven Mitteln eine Ausrichtung der Blechbunde gegenüber einem Haspel gewährleistet wird, wobei eine Anpassung der Steuerung an verschiedene Bunddurchmesser möglich sein soll.The invention is therefore based on the object to avoid these deficiencies and to improve a device of the type described in such a way that alignment of the sheet metal coils with respect to a reel is ensured with simple constructional means, the control being able to be adapted to different coil diameters.

Die Erfindung löst die gestellte Aufgabe dadurch, daß einer der beiden Meßanschläge mit einer an die Steuerung angeschlossenen Meßeinrichtung für seinen Verstellweg verbunden ist und daß sich der andere Meßanschlag zumindest während der Verstellweguessung in einer vorbestimmten Grundstellung befindet.The invention achieves the stated object in that one of the two measuring stops is connected to a measuring device connected to the control for its adjustment path and that the other measuring stop is in a predetermined basic position at least during the adjustment path measurement.

Da auf Grund dieser Maßnahmen zur Durchmessererfassung nur einer der beiden Meßanschläge verstellt werden muß, während der andere Meßanschlag sich in Ruhe befindet, ergibt sich für die Meßverstellung ein geringer Konstruktionsaufwand. Die vorgegebene Grundstellung des nicht während der Messung zu verstellenden Meßanschlages macht trotzdem die Durchmesserbestimmung für den Blechbund möglich, weil sich der Bunddurchmesser aus der Differenz des ursprünglichen Abstandes der beiden Meßanschläge und des Verstellweges des verschiebbaren Meßanschlages ergibt. Mit dem vorgegebenen Abstand zwischen. dem in seiner Grundstellung befindlichen Hubtisch und der Haspelachse ist auch der erforderliche Hub bestimmt, der dem Blechbund auf die Achshöhe des Haspels anhebt. Die Messung des Bunddurchmessers bietet dabei den Vorteil, daß beispielsweise die Hubgeschwindigkeit in Abhängigkeit vom Bunddurchmesser knapp vor Erreichen der Ausrichtlage entsprechend verlangsamt werdenkann, um möglichst geringe Toleranzen sicherzustellen. Darüber hinaus kann über den Bunddurchmesser das Bundgewicht erfaßt werden, was ebenfalls eine günstige Anpassung des Antriebes an die zu behandelnden Blechbunde erlaubt. Schließlich ergibt sich der Vorteil, daß die Durchmessererfassung örtlich getrennt von dem Haspel erfolgen kann, so daß die gewonnenen Werte bereits für den Antransport des Bundes zum Haspel ausgenützt werden können.Since only one of the two measuring stops has to be adjusted due to these measures for diameter detection, while the other measuring stop is at rest finds, there is little construction effort for the measurement adjustment. The predefined basic position of the measuring stop that is not to be adjusted during the measurement nevertheless makes it possible to determine the diameter for the sheet metal bundle, because the bundle diameter results from the difference between the original distance between the two measuring stops and the adjustment path of the displaceable measuring stop. With the given distance between. The lifting table which is in its basic position and the reel axis also determine the required stroke which lifts the coil of metal to the axis height of the reel. The measurement of the collar diameter offers the advantage that, for example, the lifting speed, depending on the collar diameter, can be slowed down just before reaching the alignment position in order to ensure the smallest possible tolerances. In addition, the coil weight can be determined via the coil diameter, which also allows a favorable adaptation of the drive to the coil to be treated. Finally, there is the advantage that the diameter can be recorded separately from the reel, so that the values obtained can already be used for the transport of the coil to the reel.

Obwohl es grundsätzlich nur auf die Messung des Verstellweges des während des Meßvorganges anstellbaren Meßanschlages ankommt, können besondere Vorteile erzielt werden, wenn die Meßeinrichtung aus einem Inkrementalmaßstab mit einer Abtasteinheit und einem an einen Rechner angeschlossenen Zähler für die Abtastimpulse der Abtasteinheit besteht, weil durch die digitale Messung eine durch den Inkrementalmaßstab vorgegebene Meßgenauigkeit einfach eingehalten werden kann und die im Zähler gezählten Abtastimpulse unmittelbar zur Verarbeitung im Rechner verwendet werden können. Dieser der Steuerung zugehörige Rechner gibt dann entsprechend seinem Programm die gewünschten Rechenergebnisse bzw. Steuerimpulse zur Steuerung der einzelnen Antriebe aus.Although it is basically only a question of measuring the adjustment path of the measuring stop that can be set during the measuring process, special advantages can be achieved if the measuring device consists of an incremental scale with a scanning unit and a counter connected to a computer for the scanning pulses of the scanning unit because the digital one Measurement a measurement accuracy predetermined by the incremental scale can be easily maintained and the scanning pulses counted in the counter immediately can be used for processing in the computer. This computer belonging to the controller then outputs the desired calculation results or control pulses for controlling the individual drives in accordance with its program.

Da der Hubtisch mit einem Hebeantrieb versehen sein muß, kann der Hubtisch vorteilhaft als verstellbarer Meßanschlag mit einer Meßeinrichtung für den Hub verbunden sein. Ist der unbewegliche Meßanschlag eine Lichtschranke, so kann bei einer Unterbrechung der Lichtschranke ein Stopp-Impuls für den Zähler der Meßeinrichtung gewonnen werden, was jeden mechanischen Schalter überflüssig macht. Sind Blechbunde mit sehr unterschiedlichem Durchmesser zu erfassen, so empfiehlt es sich, zwei oder mehrere Lichtschranken mit einem gegenseitigen Abstand in Hubrichtung des Hubtisches vorzusehen, um den Hubtisch auf ein Höchstmaß beschränken zu können. Der Blechbund braucht bei einer solchen Ausbildung unabhängig von seinem Durchmesser lediglich bis zur nächsten Lichtschranke angehoben oder abgesenkt zu werden, wodurch der maximale Hub auf den Abstand zwischen zwei aufeinanderfolgenden Lichtschranken begrenzt wird.Since the lifting table must be provided with a lifting drive, the lifting table can advantageously be connected to a measuring device for the stroke as an adjustable measuring stop. If the immovable measuring stop is a light barrier, a stop pulse can be obtained for the counter of the measuring device when the light barrier is interrupted, making any mechanical switch superfluous. If sheet metal coils with very different diameters are to be detected, it is advisable to provide two or more light barriers with a mutual distance in the lifting direction of the lifting table in order to be able to limit the lifting table to a maximum. With such a design, the sheet metal collar only needs to be raised or lowered regardless of its diameter to the next light barrier, as a result of which the maximum stroke is limited to the distance between two successive light barriers.

Wird nicht der Hubtisch für die Durchmessererfas-aung verstellt, sondern der Gegenanschlag, so muß zwar ein zusätzlicher Antrieb für diesen Gegenanschlag vorgesehen werden, doch kann mit einem solchen beweglichen Gegenanschlag eine Fehlmessung durch abstehende Bandenden vermieden werden, wenn dieser Gegenanschlag als anstellbarer Druckstempel ausgebildet ist. Über den Druckstempel wird nämlich der abstehende Bandanfang gegen den Bund gedrückt und damit die Erfassung des tatsächlichen Bunddurchmessers gewährleistet..If it is not the lifting table for the diameter measurement that is adjusted, but the counterstop, an additional drive must be provided for this counterstop, but with such a movable counterstop, incorrect measurement by protruding tape ends can be avoided if this counterstop is designed as an adjustable pressure stamp . The protruding tape start is pressed against the collar by means of the pressure stamp, thus ensuring that the actual coil diameter is recorded.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen

  • Fig. 1 eine erfindungsgemäße Vorrichtung zum Ausrichten eines Blechbundes gegenüber einem Haspel mit einem feststehenden, zwei optische Meßfühler aufweisenden Meßanschlag*und
  • Fig. 2 eine Konstruktionsvariante einer erfindungsgemäßen Vorrichtung mit einem an den Blechbund anstellbaren Druckstempel als beweglichen Meßanschlag.
The subject matter of the invention is shown in the drawing, for example. Show it
  • Fig. 1 shows a device according to the invention for aligning a coil of sheet metal with respect to a reel with a fixed measuring stop * and having two optical sensors
  • Fig. 2 shows a construction variant of a device according to the invention with a pressure ram that can be placed on the sheet metal collar as a movable measuring stop.

Wie Fig. 1 zeigt, ist der Hubtisch 1 eines auf Schienen 2 verfahrbaren Bundwagens 3 mit einer Meßeinrichtung4 für den Hubweg des Hubtisches 1 verbunden. Diese Meßeinrichtung besteht aus einem Inkrementalmaßstab 5, der beispielsweise als Zahnstange ausgebildet sein kann, und einer Abtasteinheit 6, die an einem Zähler 7 angeschlossen ist. Die Abtasteinheit für den Inkrementalmaßstab gibt beim Überfahren der Maßstabmarken Abtastimpulse an den Zähler 7 ab, der diese Abtastimpulse zählt. Die Summe der Abtastimpulse entspricht daher der Anzahl der von der Abtasteinheit 6 überfahrenen Meßmarken des Inkrementalmaßstabes und kann bei gegebenem Meßmarkenabstand als Streckenmaß gewertet werden.As shown in FIG. 1, the lifting table 1 of a trolley 3 movable on rails 2 is connected to a measuring device 4 for the lifting path of the lifting table 1. This measuring device consists of an incremental scale 5, which can be designed, for example, as a toothed rack, and a scanning unit 6, which is connected to a counter 7. The scanning unit for the incremental scale outputs scanning pulses to the counter 7 when the scale marks are passed, which counts these scanning pulses. The sum of the scanning pulses therefore corresponds to the number of measuring marks of the incremental scale run over by the scanning unit 6 and can be evaluated as a distance measure for a given measuring mark distance.

Obwohl die Abtasteinheit 6 verschieden ausgebildet sein kann, ergeben sich für die dargestellte Vorrichtung besonders einfache Verhältnisse, wenn die Abtasteinheit den als Zahnstange ausgebildeten Inkrementalmaßstab gabelartig umfaßt und auf einem Gabelschenkel eine Lichtquelle und auf dem anderen Gabelschenkel ein fotoelektrisches Element trägt. Der Lichtstrahl zwischen der Lichtquelle und dem fotoelektrischen Element wird durch die Zähne der Zahnstange unterbrochen, wodurch die erforderlichen Zählimpulse erhalten werden.Although the scanning unit 6 can be designed differently, there are particularly simple conditions for the illustrated device if the scanning unit comprises the incremental scale designed as a toothed rack and carries a light source on one fork leg and a photoelectric element on the other fork leg. The light beam between the light source and the photoelectric element is interrupted by the teeth of the rack, whereby the required counting pulses are obtained.

Um einen auf den Hubtisch 1 abgelegten Blechbund 8 gegenüber einem nicht dargestellten Haspel ausrichten zu können, sind zwei Meßanschläge 9 und 10 erforderlich, von denen der eine 10 durch den Hubtisch 1 und der andere durch wenigstens einen Meßfühler gebildet werden, wobei sich als Meßfühler eine Lichtschranke 11 als besonders vorteilhaft anbietet. Wird nun der Blechbund 8 mit Hilfe des Hubtisches 1 aus einer durch die Ausgangslage des Hubtisches 1 bestimmten Grundstellung angehoben, bis der ortsfeste Meßanschlag 9 vom Bund erreicht ist, so kann über den Meßanschlag der Zähler 7 der Meßeinrichtung 4 angehalten werden. Da der Abstand des Hubtisches 1 in seiner Ausgangslage von dem ortsfesten Meßanschlag konstruktiv vorgegeben und bekannt ist, ist der Verstellweg des Hubtisches 1 ein Maß, aus dem der Bunddurchmesser abgeleitet werden kann. Wird der Zähler in der Ausgangslage des Hubtisches 1 über eine Referenzmarke auf einen dem Abstand zwischen dem Hubtisch und dem ortsfesten Meßanschlag 9 entsprechenden Wert gesetzt und ist der Zähler als Vor- und Rückwärtszähler ausgebildet, so kann am Zähler der Bunddurchmesser beim Erreichen des festen Meßanschlages unmittelbar abgelesen werden. Erreicht der Blechbund 8 beim Anheben eine Lichtschranke 11, so wird der Lichtstrahl unterbrochen, was dazu ausgenützt werden kann, einen Stopp-Impuls über eine Leitung.12 an den Zähler 7 weiterzugeben.In order to be able to align a sheet metal collar 8 deposited on the lifting table 1 with respect to a reel (not shown), two measuring stops 9 and 10 are required, of which one 10 is formed by the lifting table 1 and the other by at least one measuring sensor, one being a measuring sensor Offers light barrier 11 as particularly advantageous. If the sheet metal collar 8 is now raised from the basic position determined by the starting position of the lifting table 1 with the aid of the lifting table 1 until the stationary measuring stop 9 is reached by the federal government, the counter 7 of the measuring device 4 can be stopped via the measuring stop. Since the distance of the lifting table 1 is structurally predetermined and known in its starting position from the stationary measuring stop, the adjustment path of the lifting table 1 is a measure from which the collar diameter can be derived. If the counter in the starting position of the lifting table 1 is set to a value corresponding to the distance between the lifting table and the stationary measuring stop 9 via a reference mark and the counter is designed as a forward and backward counter, the collar diameter can be reached directly on the counter when the fixed measuring stop is reached be read. If the sheet metal collar 8 reaches a light barrier 11 when it is raised, the light beam is interrupted, which can be used to pass on a stop pulse to the counter 7 via a line 12.

Die Durchmessererfassung für den jeweils am Hubtisch 1 aufliegenden Blechbund 8 stellt selbstverständlich noch nicht die Ausrichtung dieses Blechbundes gegenüber der Haspelachse sicher. Aus dem Durchmesser läßt sich jedoch der erforderliche Hubweg für den Hubtisch 1 errechnen, weil wiederum der Abstand der Haspelachse vom Bundwagen 3 und damit vom Hubtisch 1 in seiner Ausgangslage vorgegeben ist. Zur Steuerung der den Hebeantrieb für den Hubtisch 1 bildenden Zylinder 13 kann der Stand des Zählers 7 in einen Rechner 14 eingelesen werden, der auf Grund seines Programmes den zum Ausrichten des Blechbundes gegenüber der Haspelachse notwendigen Hubweg des Hubtisches 1 berechnet und das Rechenergebnis oder ein entsprechendes Steuersignal an eine Stelleinrichtung 15 für ein Steuerventil 16 in der Beaufschlagungsleitung 17 der Zylinder 13 weitergibt.Of course, the diameter detection for the sheet bundle 8 resting on the lifting table 1 does not yet ensure the alignment of this sheet bundle with respect to the reel axis. From the diameter, however, the required stroke for the lifting table 1 can be calculated, because again the distance of the reel axis from the coil carriage 3 and thus from the lifting table 1 is predetermined in its starting position. To control the lifting drive for the cylinder 13 forming the lifting table 1, the status of the counter 7 can be read into a computer 14 which, on the basis of its program, calculates the lifting path of the lifting table 1 necessary for aligning the sheet metal bundle with respect to the reel axis and the calculation result or a corresponding control signal to an actuating device 15 for a control valve 16 in the pressurization line 17 of the cylinder 13.

Der ermittelte Bunddurchmesser kann aber auch für zusätzliche Steueraufgaben herangezogen werden. Mit dem Bunddurchmesser ist nämlich die für eine gewünschte Abzugsgeschwindigkeit erforderliche Anfangs-Umdrehungszahl für den Haspel gegeben. Außerdem hängt das Bundgewicht von dem Bunddurchmesser ab, was eine gewichtsabhängige Antriebssteuerung über die Durchmessererfassung erlaubt. -Weiters kann bei vorgegebenem Bunddurchmesser die Hubgeschwindigkeit in günstiger Weise von einem Eilgang in einen Kriechgang umgestellt werden,,so daß die gewünschte Hublage genau angefahren werden kann.The determined coil diameter can also be used for additional tax tasks. With the coil diameter, the initial number of revolutions required for a desired take-off speed for the reel is given. In addition, the coil weight depends on the coil diameter, which allows weight-dependent drive control via the diameter detection. - Furthermore, with a given collar diameter, the lifting speed can be changed over from rapid to crawling in a favorable manner, so that the desired lifting position can be approached precisely.

Ist mit sahr unterschiedlichen Bunddurchmessern zu rechnen, so empfiehlt sich das Vorsehen von zwei oder mehreren Lichtschranken 11, damit der Verstellweg für den Hubtisch 1 vom Durchmesser des jeweils aufliegenden Bundes weitgehend unabhängig bleiben kann. Der Bund braucht ja lediglich bis zur nächsten Lichtschranke 11 angehoben oder abgesenkt zu werden, um einen entsprechenden Stopp-Impuls für den Zähler 7 zu erhalten. An Hand des strichpunktiert angedeuteten Bundes mit einem großen Durchmesser läßt sich einfach ersehen, daß zur Durchmessererfassung nur ein geringer Hub erforderlich ist. Ein Bund mit kleinerem Durchmesser braucht aber nicht bis zur oberen Lichtschranke 11 angehoben zu werden. Die darunter liegende Lichtschranke gewährleistet bereits eine Durchmessererfassung in gleicher Weise.If very different collar diameters are to be expected, the provision of two or more light barriers 11 is recommended, so that the adjustment path for the lifting table 1 can remain largely independent of the diameter of the respective collar lying on it. The federal government only needs to be raised or lowered to the next light barrier 11 in order to receive a corresponding stop pulse for the counter 7. On the basis of the dotted line with a large diameter, it can easily be seen that only a small stroke is required for the diameter detection. A collar with a smaller diameter does not need to be raised to the upper light barrier 11. The light barrier underneath already guarantees a diameter detection in the same way.

Zum Unterschied zur Vorrichtung nach Fig. 1 wird gemäß der Fig. 2 nicht der durch den Hubtisch 1 gegebene Meßanschlag 10 zur Durchmessererfassung verstellt, sondern ein Druckstempel 18, der mittels eines Zylinders 19 gegen den Blechbund 8 gedrückt wird. Da der Verschiebeweg des Druckstempels 18 über eine analoge Meßeinrichtung 4 mit einem Inkrementalmaßstab 5 und einer an einen Zähler angeschlossenen Abtasteinheit 6 gemessen wird, kann in analoger Weise der Durchmesser des Bundes 8 und damit der für das Anheben des Bundes auf die Haspelachse erforderliche Hub bestimmt werden. Durch den gegen den Blechbund 8 verfahrbaren Druckstempel 18 können Fehlmessungen durch vom Bund abstehende Bandenden wirksam vermieden werden. Diese in Fig. 2 strichpunktiert angedeuteten Bandenden 20 werden nämlich mit Hilfe des Druckstempels 18 an den Bund angedrückt, so daß zwischen den beiden Meßanschlägen 9, 10 der tatsächliche Bunddurchmesser erfaßt wird.In contrast to the device according to FIG. 1, according to FIG. 2 it is not the measuring stop 10 given by the lifting table 1 that is adjusted for diameter detection, but a pressure stamp 18 which is pressed against the sheet metal collar 8 by means of a cylinder 19. Since the displacement of the plunger 18 is measured by an analog measuring device 4 with an incremental scale 5 and a scanning unit 6 connected to a counter, the diameter of the collar 8 and thus the stroke required for lifting the collar on the reel axis can be determined in an analogous manner . By means of the pressure stamp 18, which can be moved against the sheet metal collar 8, incorrect measurements due to strip ends projecting from the collar can be effectively avoided. These band ends 20, indicated by dash-dotted lines in FIG. 2, are pressed against the collar with the aid of the pressure stamp 18, so that the actual collar diameter is detected between the two measuring stops 9, 10.

Claims (6)

1. Vorrichtung zum Ausrichten eines Blechbundes gegenüber einem Haspel, bestehend aus einem Hubtisch, dessen Hebeantrieb über eine Steuerung in Abhängigkeit von der Lage zweier relativ gegeneinander verschiebbarer Meßanschläge betätigbar ist, die einerseits durch den Hubtisch und anderseits durch wenigstens einen Meßfühler gebildet sind, dadurch gekennzeichnet, daß einer der beiden Meßanschläge (9, 10) mit einer an die Steuerung angeschlossenen Meßeinrichtung (4) für seinen Verstellweg-verbunden.ist und daß sich der andere Meßanschlag (10 bzw. 9) zumindest während der Verstellwegmessung in einer vorbestimmten Grundstellung befindet.1. Device for aligning a coil of sheet metal with respect to a reel, consisting of a lifting table, the lifting drive of which can be actuated via a control depending on the position of two measuring stops which can be displaced relative to one another and which are formed on the one hand by the lifting table and on the other hand by at least one measuring sensor, characterized that one of the two measuring stops (9, 10) is connected to a measuring device (4) connected to the control for its adjustment path and that the other measuring stop (10 or 9) is in a predetermined basic position at least during the adjustment path measurement. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Meßeinrichtung (4) aus einem Inkrementalmaßstab (5) mit einer Abtasteinheit (6) und einem an einen Rechner (14) angeschlossenen Zähler (7) für die Abtastimpulse der Abtasteinheit (6) besteht.2. Device according to claim 1, characterized in that the measuring device (4) consists of an incremental scale (5) with a scanning unit (6) and a counter (7) connected to a computer (14) for the scanning pulses of the scanning unit (6) . 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Hubtisch (1) mit einer Meßeinrichtung (4) für den Hub verbunden ist.3. Apparatus according to claim 1 or 2, characterized in that the lifting table (1) is connected to a measuring device (4) for the stroke. 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der unbewegliche Meßanschlag aus wenigstens einer Lichtschranke (11) besteht.4. The device according to claim 3, characterized in that the immobile measuring stop consists of at least one light barrier (11). 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß zumindest zwei Lichtschranken mit einem gegenseitigen Abstand in Hubrichtung des Hubtisches (1) vorgesehen sind.5. The device according to claim 4, characterized in that at least two light barriers are provided with a mutual distance in the lifting direction of the lifting table (1). 6. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der mit der Meßeinrichtung (4) verbundene Meßanschlag als anstellbarer Druckstempel (18) ausgebildet ist.6. Apparatus according to claim 1 or 2, characterized in that the measuring stop connected to the measuring device (4) is designed as an adjustable pressure stamp (18).
EP19810890179 1981-03-19 1981-10-23 Apparatus for positioning a metal sheet coil opposite a reel Expired EP0060964B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT128881A AT368913B (en) 1981-03-19 1981-03-19 DEVICE FOR ALIGNING A TEMPERATURE PLATE TO A REEL
AT1288/81 1981-03-19

Publications (2)

Publication Number Publication Date
EP0060964A1 true EP0060964A1 (en) 1982-09-29
EP0060964B1 EP0060964B1 (en) 1984-05-30

Family

ID=3510648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810890179 Expired EP0060964B1 (en) 1981-03-19 1981-10-23 Apparatus for positioning a metal sheet coil opposite a reel

Country Status (3)

Country Link
EP (1) EP0060964B1 (en)
AT (1) AT368913B (en)
DE (1) DE3163914D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976473A (en) * 1988-02-04 1990-12-11 Takeda Chemical Industries, Ltd. Winding apparatus for sheet-shaped molding material
EP0697359A3 (en) * 1994-08-19 1997-02-05 Sucker Mueller Hacoba Gmbh Method of clamping a spool carrier beam
CN111922119A (en) * 2020-08-19 2020-11-13 昆山峤川电气科技有限公司 Automatic feeding system of cold rolling unit and operation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266094B (en) * 1966-08-18 1968-04-11 Demag Ag Device for the automatic centering of a metal strip collar to the mandrel of a reel station
AT277124B (en) * 1967-11-06 1969-12-10 Voest Ag Device for applying coils to a decoiler
DE1802212B2 (en) * 1967-11-06 1970-10-15
DE2136791B2 (en) * 1971-07-23 1973-05-03 Ungerer Geb. Dollinger, Irma, 7530 Pforzheim DEVICE FOR FEEDING A UNWINDING REEL
US4194434A (en) * 1977-02-17 1980-03-25 Hoogovens Ijmuiden, B.V. Device for controlling a longitudinally movable driving means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266094B (en) * 1966-08-18 1968-04-11 Demag Ag Device for the automatic centering of a metal strip collar to the mandrel of a reel station
AT277124B (en) * 1967-11-06 1969-12-10 Voest Ag Device for applying coils to a decoiler
DE1802212B2 (en) * 1967-11-06 1970-10-15
DE2136791B2 (en) * 1971-07-23 1973-05-03 Ungerer Geb. Dollinger, Irma, 7530 Pforzheim DEVICE FOR FEEDING A UNWINDING REEL
US4194434A (en) * 1977-02-17 1980-03-25 Hoogovens Ijmuiden, B.V. Device for controlling a longitudinally movable driving means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976473A (en) * 1988-02-04 1990-12-11 Takeda Chemical Industries, Ltd. Winding apparatus for sheet-shaped molding material
EP0697359A3 (en) * 1994-08-19 1997-02-05 Sucker Mueller Hacoba Gmbh Method of clamping a spool carrier beam
CN111922119A (en) * 2020-08-19 2020-11-13 昆山峤川电气科技有限公司 Automatic feeding system of cold rolling unit and operation method thereof

Also Published As

Publication number Publication date
DE3163914D1 (en) 1984-07-05
ATA128881A (en) 1982-04-15
AT368913B (en) 1982-11-25
EP0060964B1 (en) 1984-05-30

Similar Documents

Publication Publication Date Title
EP0511488A1 (en) Paper folder with adjustable folding rollers
DE2952253C2 (en)
DE3304475A1 (en) AUTOMATED MEASURING SCALE
DE3407258A1 (en) METHOD AND DEVICE FOR DETERMINING THE EXACT POSITION OF A MOVABLE LINK
DE69304485T2 (en) Measuring device for sheet metal bending angles
EP0460712A2 (en) Method and device for laying fabric webs having faults
DE2251303A1 (en) CUTTING DEVICE
DE2601274A1 (en) DETECTOR DEVICE
DE3412063C2 (en)
EP0060964B1 (en) Apparatus for positioning a metal sheet coil opposite a reel
EP0048382A2 (en) X-ray exposure apparatus with a film holder movable from a parked position to an exposure position
DE2162019C2 (en) Mobile track leveling tamping machine
DE2054643A1 (en) Device for determining dimensions
DE1531085B1 (en) Device for centering sheet metal coils or other heavy material to be conveyed at a placement point of a support beam conveyor
DE2713004A1 (en) POSITION TRANSDUCERS FOR MACHINE TOOLS AND MEASURING DEVICES OR MACHINERY
DE3829279C2 (en)
DE1473702C3 (en) Adjustment device for scanning devices for production control of a material web continuously running in the longitudinal direction from a production machine
DE2652200A1 (en) Registration of printing on continuous roll material - has pulse generator coupled to counter to ensure that two printing stations operate with correct registration
DE2109921A1 (en) Automatic digitization system
DE1498218C3 (en) Displacement device in relation to a reference area on information storage and reading devices
DE1448385B2 (en) Measuring device for the continuous measurement of the respective passage length of a moving belt
DE3311203A1 (en) Method for reproducing a reference position
EP1001325B1 (en) Method and device for positioning an object
DE2711908A1 (en) Stroke reversal system for honing machine - has incremental-digital converter which passes stroke path signal to control instrument
DE1121571B (en) Equipment on metal extrusion presses for measuring and regulating the press ram speed

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19821104

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 3163914

Country of ref document: DE

Date of ref document: 19840705

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19841003

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19841004

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19841030

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19841031

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19841031

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19841231

Year of fee payment: 4

Ref country code: BE

Payment date: 19841231

Year of fee payment: 4

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SMS SCHLOEMANN-SIEMAG AG

Effective date: 19850222

NLR1 Nl: opposition has been filed with the epo

Opponent name: SMS SCHLOEMANN-SIEMAG AG.

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19850826

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLR2 Nl: decision of opposition
GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state
BERE Be: lapsed

Owner name: VOEST-ALPINE A.G.

Effective date: 19851023

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 81890179.5

Effective date: 19860730