EP0060964B1 - Appareil pour positionner une bobine de bande métallique en face d'un dévidoir - Google Patents

Appareil pour positionner une bobine de bande métallique en face d'un dévidoir Download PDF

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Publication number
EP0060964B1
EP0060964B1 EP19810890179 EP81890179A EP0060964B1 EP 0060964 B1 EP0060964 B1 EP 0060964B1 EP 19810890179 EP19810890179 EP 19810890179 EP 81890179 A EP81890179 A EP 81890179A EP 0060964 B1 EP0060964 B1 EP 0060964B1
Authority
EP
European Patent Office
Prior art keywords
measuring
lifting
sheet metal
stop
reel
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.)
Expired
Application number
EP19810890179
Other languages
German (de)
English (en)
Other versions
EP0060964A1 (fr
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
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Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0060964A1 publication Critical patent/EP0060964A1/fr
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Publication of EP0060964B1 publication Critical patent/EP0060964B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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 that can be displaced relative to one another, which is formed on the one hand by the lifting table and on the other hand by at least one measuring 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, the distance between the two measuring stops must correspond to the diameter of the sheet metal bundle when the measuring sensor, for example given by a light barrier, responds the alignment of the coil with respect to the reel axis results.
  • the measuring stop designed as a measuring sensor is first placed on the coil of sheet metal and then the distance of the lifting table from the reel axis is compared with the distance between the sensor and the reel axis .
  • the two measuring stops given by the sensor and the lifting table are each connected to a measuring device for their distance from the reel axis, so that the drive for the lifting table can be switched off via a control if the two measuring devices indicate the same values.
  • the lifting table must therefore be raised or lowered to align the sheet coil with the reel until this condition is met.
  • a disadvantage of these known devices is that either the adjustment path of both measuring stops, that is to say the stroke of the lifting table and the displacement path of the measuring sensor, or that both measuring stops have to be moved in opposite directions, 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 of avoiding these deficiencies and improving 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, with the control being able to be adapted to different coil diameters.
  • the invention solves the problem in that one of the two measuring stops is connected to a measuring device connected to the control for its adjustment path, that the other measuring stop is in a predetermined basic position at least during the adjustment path measurement and that the alignment dimension for the sheet metal bundle is by means of a Calculator is determined from the difference between the specified basic distance between the two measuring stops and the measured adjustment path.
  • 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.
  • the required stroke is also determined, which lifts the sheet metal bundle 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 sheet metal 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 for the scanning pulses of the scanning unit connected to a computer, because the digital one Measurement a measurement accuracy specified by the incremental scale can be easily maintained and the scanning pulses counted in the counter can be used directly 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 used as adjustable measuring stop can be connected to a measuring device for the stroke. 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 the detection of the actual coil diameter.
  • the lifting table 1 of a trolley 3 which can be moved 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 emits 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 passed over by the scanning unit 6 and can be evaluated as a distance dimension for a given measuring mark distance.
  • the scanning unit 6 can be designed differently, there are particularly simple conditions for the device shown 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 with the aid of the lifting table 1 from a basic position determined by the starting position of the lifting table 1 until the stationary measuring stop 9 is reached by the collar, the counter 7 of the measuring device 4 can be stopped via the measuring stop. Since the distance of the lifting table 1 in its initial position from the stationary measuring stop is structurally predetermined and known, the adjustment path of the lifting table 1 is a measure from which the collar diameter can be derived.
  • the collar diameter can be directly at 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.
  • the required stroke distance for the lifting table 1 can, however, be calculated from the diameter, because the distance of the reel axis from the coil carriage 3 and thus from the lifting table 1 is predetermined in its initial 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 one Passes control signal to an actuator 15 for a control valve 16 in the supply line 17 of the cylinder 13.
  • the determined bundle 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.
  • 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)

Claims (6)

1. Appareil pour l'alignement d'une bobine de tôle (8) relativement à un dévidoir, se composant d'une table (1) de levage, dont l'entraînement de levage peut être actionné par l'intermédiaire d'une commande en fonction de la position de deux butées de mesure (9, 10) pouvant coulisser l'une par rapport à l'autre et qui sont formées, d'une part, par la table de levage et, d'autre part, par au moins un capteur, ledit appareil étant caractérisé par le fait que l'une des deux butées de mesure (9, 10) est reliée à un dispositif de mesure (4) de sa course de réglage, relié à la commande, que l'autre butée de mesure (10, 9) se trouve, au moins pendant la mesure de la course de réglage, dans une position de base prédéterminée, et que l'on détermine la grandeur d'alignement de la bobine de tôle (8) à l'aide d'un calculateur (14), en partant de la différence entre la distance de base prescrite des deux butées de mesure (9, 10) et la course de réglage mesurée.
2. Appareil selon la revendication 1, caractérisé par le fait que le dispositif de mesure (4) est formé d'une règle incrémentielle (5) munie d'une unité d'exploration (6) et d'un compteur (7) relié à un calculateur (14) est destiné à compter les impulsions d'exploration de l'unité d'exploration (6).
3. Appareil selon l'une des revendications 1 et 2, caractérisé par le fait que la table de levage (1) est reliée à un dispositif de mesure (4) de la course.
4. Appareil selon la revendication 1, caractérisé par le fait que la butée de mesure immobile est formée d'au moins une barrière photo-électrique (11).
5. Appareil selon la revendication 4, caractérisé par le fait qu'il est prévu au moins deux barrières photo-électriques espacées entre elles dans la direction de levage de la table de levage (1
6. Appareil selon l'une des revendications 1 et 2, caractérisé par le fait que la butée de mesure reliée au dispositif de mesure (4) et conçue sous forme d'un poinçon (18) pouvant être approché.
EP19810890179 1981-03-19 1981-10-23 Appareil pour positionner une bobine de bande métallique en face d'un dévidoir Expired EP0060964B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1288/81 1981-03-19
AT128881A AT368913B (de) 1981-03-19 1981-03-19 Vorrichtung zum ausrichten eines blechbundes gegenueber einem haspel

Publications (2)

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

Family

ID=3510648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810890179 Expired EP0060964B1 (fr) 1981-03-19 1981-10-23 Appareil pour positionner une bobine de bande métallique en face d'un dévidoir

Country Status (3)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2559444B2 (ja) * 1988-02-04 1996-12-04 武田薬品工業株式会社 シート状成形材料の巻取装置
DE4429482A1 (de) * 1994-08-19 1996-02-22 Hacoba Textilmaschinen Verfahren zum Einspannen eines Wickeltragbaums
CN111922119A (zh) * 2020-08-19 2020-11-13 昆山峤川电气科技有限公司 冷轧机组自动上料系统及其操作方法
CN116833248A (zh) * 2023-04-24 2023-10-03 中冶南方工程技术有限公司 地辊站及其操作方法、钢卷处置机组

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266094B (de) * 1966-08-18 1968-04-11 Demag Ag Einrichtung zur automatischen Zentrierung eines Metallband-Bundes zum Dorn einer Haspelstation
AT277124B (de) * 1967-11-06 1969-12-10 Voest Ag Vorrichtung zum Aufbringen von Bunden auf eine Abwickelhaspel
DE2136791B2 (de) * 1971-07-23 1973-05-03 Ungerer Geb. Dollinger, Irma, 7530 Pforzheim Vorrichtung zum beschicken eines abwickelhaspels
US4194434A (en) * 1977-02-17 1980-03-25 Hoogovens Ijmuiden, B.V. Device for controlling a longitudinally movable driving means

Also Published As

Publication number Publication date
EP0060964A1 (fr) 1982-09-29
DE3163914D1 (en) 1984-07-05
ATA128881A (de) 1982-04-15
AT368913B (de) 1982-11-25

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