EP2718036B1 - Messvorrichtung, walzgerüst und verfahren zum erfassen der höhe eines walzspalts - Google Patents

Messvorrichtung, walzgerüst und verfahren zum erfassen der höhe eines walzspalts Download PDF

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Publication number
EP2718036B1
EP2718036B1 EP12720897.3A EP12720897A EP2718036B1 EP 2718036 B1 EP2718036 B1 EP 2718036B1 EP 12720897 A EP12720897 A EP 12720897A EP 2718036 B1 EP2718036 B1 EP 2718036B1
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EP
European Patent Office
Prior art keywords
working rolls
roll gap
displacement
roll
transmitter
Prior art date
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Active
Application number
EP12720897.3A
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German (de)
English (en)
French (fr)
Other versions
EP2718036A1 (de
Inventor
Andreas Ritter
Markus Koch
Andreas Berendes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
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SMS Siemag AG
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Publication date
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Publication of EP2718036A1 publication Critical patent/EP2718036A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis

Definitions

  • the invention relates to a measuring device with a roller nip for direct detection of the height or the size of a nip between two work rolls in a rolling stand.
  • the invention also relates to the associated rolling stand and a corresponding method.
  • a measuring device for detecting the gap of a pair of work rolls as an actual value for a controller for keeping constant the height of the nip between the work rolls.
  • the measuring device comprises a measuring head, which is aligned in the nip with the help of a pair of scissors levers, which is biased by means of tension springs.
  • the measuring head is held on the roll stand via a pivotable linkage.
  • the measuring head comprises two electromagnetic measuring systems, each of which detects the distance of its own reference plane from the associated, acting as a magnet shaft approach.
  • the pivotable linkage which is considerably longer in comparison to the height of the measuring head, ensures that uniform vertical movements of the work rolls, such as oscillations, remain practically without influence on the measurement result, because with the measuring device the distance of each reference plane of the electromagnetic measuring systems can be kept constant to the assigned shaft approach.
  • a disadvantage of this prior art is that the pivotable linkage is only designed to track the measuring device or the measuring head of a vertical movement of the work rolls, so as to keep the distance between the measuring head and shaft extension of the work roll constant. Problems with a horizontal movement of the work rolls in or against the rolling direction are not discussed.
  • the U.S. Patent 2,032,584 discloses a roll nip detector for detecting the height of the nip between two work rolls for manual operation. It is not coupled to the rolling stand and can therefore be used at any position of the pair of work rolls.
  • the British patent application discloses GB 886,238 a measuring device for measuring the size of the nip between two work rolls.
  • the measuring device comprises two measuring rollers, which are held by a common holder and are brought into contact with the surface of the work rolls for measuring the size of the roll gap.
  • the measuring rollers are biased by a linkage and a compression spring against the nip plane, which is spanned by the two longitudinal axes of the work rolls.
  • the bias voltage represents an operating point of the compression spring. Any change in the size of the nip, that is, any vertical movement of the work rolls relative to each other leads to a change in the spring force with respect to the operating point. This change in the spring force, which represents a change in the size of the roll gap, is displayed on a display device.
  • the measuring device is used for detecting vertical movements of the work rolls relative to one another, that is to say a change in the size of the roll gap with an unchanged horizontal position of the work rolls.
  • a shift of the work rolls in or against the rolling direction would result in a shift of the operating point of the spring and thus an increasing measurement inaccuracy.
  • the European patent application EP 1 206 981 A2 discloses a measuring device with a roll nip for detecting the height of a nip between two work rolls in a rolling mill at a suitable relative position of the nip encoder to the work rolls.
  • the preamble of claims 1 and 7 is based on this document.
  • the invention has the object, a known measuring device and a known mill stand with the Further develop measuring device to the effect that the measuring device still delivers good usable measurement results even with a shift of the work rolls in or against the rolling direction with respect to the framework level without sacrificing the accuracy of measurement.
  • the measuring device comprises a roller gap sensor for detecting the height of a roll gap between two work rolls in a roll stand at a suitable relative position of the roll gap sensor to the work rolls; an initialization device for detecting a shift of the work rolls in or against the rolling direction from a starting position to an end position and a roll nip displacement means for moving the nip according to the detected by the initialization shift of the work rolls in or against the rolling direction in the for the detection of the height the roll gap suitable relative position to the work rolls in the final position.
  • roll nip in the present invention means a roll nip for directly detecting the height of the nip; that is, the roll nip is designed to be introduced directly into the nip or between the roll neck or the Lynettensitzer the rolls.
  • displacement of the work rolls is to be understood in the present invention in the sense of a displacement vector, that is, it denotes an amount and a direction.
  • suitable relative position of the roll nip to the work rolls in particular denotes a suitable distance between a measuring head of the nip to the surface of the work rolls or their Lynettensitz for the most accurate detection of the position of a single work roll or for detecting the distance between two work rolls to each other. Only that Maintaining the correct / suitable relative position ensures a desired high measuring accuracy.
  • inventively provided initialization which is designed to detect a shift of the work rolls in or against the rolling direction, it becomes possible in case of a shift of the work rolls in or against the rolling direction from an initial position to an end position of the nip mill the work rolls in the Nachzufahren end position, so that even in the final position, a suitable relative position between the nip and the work rolls and thus a required high accuracy are guaranteed.
  • the initialization device is designed in the form of a mechanical coupling point, a probe or an optical, electronic or magnetic sensor for detecting a change in the position of at least one of those elements of the bearing of the work rolls, which in a displacement in or against the rolling direction be moved.
  • the provision of the initialization device and its operative connection with the shifted parts of the storage allows optimal detection of the displacement of the work rolls in or against the rolling direction.
  • the roll nip displacement device is preferably designed in the form of a mechanical linkage for direct synchronous transfer of the sliding movement of the shifted parts of the bearing of the work roll on the nip encoder.
  • the linkage can be articulated via coupling points.
  • the mechanical coupling point and the linkage may also be formed together as a rigid connection between one of the mitschobenen parts of the bearing of the work roll and the nip.
  • this transmission can also be done without contact, preferably when the initialization is in the form of an optical, electrical or magnetic sensor and an optical or electrical transmission channel is provided for transmitting the measuring signals of the initialization device, which represent the displacement of the work rolls in or against the rolling direction, to a control and drive means for displacing the nip encoder.
  • the rolling mill next to the HS-displacement device for moving the work rolls in or opposite to the Rolling also have an axial displacement device can for axial displacement of the work rolls.
  • a co-displacement of the roll nip in the axial direction together with the work rolls is not provided according to the invention, because at an axial displacement of the work rolls required for the detection of the nip relative position, that is, the distance between the nip and the surface of the work roll or the surface of the Lynettensitz does not change, especially if the Lynettensitz has a constant diameter.
  • the nip-displacement device has an operating mode for retracting the nip in a rest or retreat position outside the nip and preferably outside of the mill stand.
  • FIG. 6 shows a rolling mill of the prior art with two support rollers 240-1, 240-2 between which two work rolls 210-1, 210-2 are stored.
  • the distance between the two work rolls defines a nip through the rolling stock (not shown here) is moved in the rolling direction.
  • roller gap 110 At the Lynettensitzen 212 of the work rolls are roller gap 110 arranged to detect the height of the roll gap.
  • the Lynettensitze are typically offset from the diameter of the rolls, the distance between the Lynettensitzen detected by the nip encoder on the - to be expected down due to the larger diameter of the work rolls reduced height H of the roll gap.
  • FIGS. 7a) to 7e All of these nipplates have a mechanism 114 in the form of a linkage for suitably positioning measuring heads 112 with respect to the Lynettensitze of the work rolls 210.
  • the mechanism or the linkage with the help of biased a spring so that in this way a predetermined distance between the measuring head and Lynettensitz or surface of the work roll or a concern of the measuring head to the Lynettensitz or on the work roll is always guaranteed even with a vertical movement of the work rolls 210.
  • FIGS. 8a ), b) and c) each show different examples of a displacement V of the work rolls 210 relative to the framework level 200-10.
  • the scaffolding planes are respectively defined by the longitudinal axes of the upper and lower support rollers 240-1, 240-2.
  • the work rolls 210 and thus the nip can be displaced in the rolling direction as well as in the direction opposite to the rolling direction with respect to the framework plane 210.
  • the amount of displacement, that is, the offset is denoted by the reference V in the figures.
  • the direction of the offset with respect to the framework level 200-10 is indicated by a corresponding sign + or -.
  • the rolling direction is in FIG. 8 each indicated by a horizontal arrow.
  • the nip encoder 110 comprises according to FIG. 1 Measuring heads 112, which are arranged in a suitable relative position to the circumference of the work rolls 210-1, 210-2 or the circumference of the Lynettensitze the work rolls.
  • the measuring heads 112 are connected via a linkage 114 to a display device 116, which indicates the height of the working gap.
  • the initialization device 120 is connected at least with its one half to the chock 224 of the lower work roll 210-2.
  • the initializer 120 operates at the in FIG. 1 shown embodiment of a roll nip displacement device 130 directly to the nip encoder 110.
  • the nip shift device 130 includes in the in FIG.
  • a linkage which is slidably mounted in a sliding sleeve. Due to the direct coupling of the chock 224 via the initialization device 120 and the nip shift device 130 to the nip encoder 110 is advantageously a shift of the chock 224 and thus the work rolls 210 in or against the rolling direction directly synchronously transmitted to the nip encoder 110. In this way it is advantageously ensured that even with a shift of the work rolls in or against the rolling direction, the relative position of the measuring heads 112 to the surfaces of the work rolls 210 or Lynettensitzen (in FIG. 1 not shown) and thus maintain a desired measurement accuracy.
  • FIG. 2 shows a plan view of the FIG. 1 known arrangement. It is the arrangement of the nip 110 to the left and right Lynettensitz 212th the work roll 210-1 recognizable.
  • the nip 110 are connected via the nip shift 130 with the initialization 120, which in turn contact directly the chock 224 of the work roll 210.
  • the nip-displacement device 130 has a degree of freedom in or against the rolling direction, recognizable by the arrangement of the sliding sleeve 115 parallel to the rolling direction 400.
  • FIG. 3 shows the individual elements of a storage of the work roll 210 in detail.
  • the bearing serves to bridge the distance between the stand of the frame and the roll neck 215 of the work roll 210.
  • the distance between them is filled by a horizontal shifting HS-displacement device, for example in the form of a wedge adjustment.
  • the HS shifting device has a first wedge fixedly connected to the stand of the rolling stand 200 and a second wedge 221 sliding on the first wedge.
  • an intermediate plate 220, a bending cassette 233 and / or a building material 224 typically adjoin the wedge 221.
  • All said parts of the storage that is, the mobile wedge 221, the intermediate plate 220, the bending cassette 223, and the building material 224, each individually, may serve as a reference point for the initializing means 120 for detecting a displacement of the work rolls, because in that case Individual parts of the storage to be moved in or against the rolling direction.
  • the nip sliders 110 need not be axially displaced with, provided that the axial displacement has no effect on the relative position of the nip 110 to the Lynettensitzen or the roll neck of the work rolls, so that for a desired measurement accuracy required relative position of the roller gap to the Lynettensitzen remains.
  • FIG. 5 an embodiment of the measuring device according to the invention, in which the nip-displacement device 130 also has a control and drive means 132 which is adapted to actively move the nip encoder 110 in or opposite to the rolling direction.
  • This control and drive device 132 is particularly necessary when a direct mechanical coupling between the chock 224 and the nip encoder 110 does not exist. This may be the case, for example, when the initialization device 120 consists of two mechanically separate coupling halves, one of which is connected, for example, to the chock 224 and the other to a linkage of the nip shift device 130.
  • control and drive means 132 may be required if the nip shift 130 does not provide any mechanism or linkage between the initializer and the nip encoder 110, but instead provides an optical or electrical transmission channel for transmitting the initialization device measurement signals the displacement of the work rolls represent the control and drive means.
  • the control and drive device 132 is used to actively track the nip 110 to the shifted (end) position of the work rolls.
  • the nip shift 130 with the control and drive means 132 may have an operating mode for retracting the nip encoder 110 to a rest or retreat position outside the nip, and preferably also the mill stand. The descending of the roll nip to the work rolls can be done at the same time, that is, synchronously or with a time delay to the displacement of the work rolls 210.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
EP12720897.3A 2011-06-07 2012-05-16 Messvorrichtung, walzgerüst und verfahren zum erfassen der höhe eines walzspalts Active EP2718036B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011105331 2011-06-07
DE102011078139A DE102011078139A1 (de) 2011-06-07 2011-06-27 Messvorrichtung, Walzgerüst und Verfahren zum Erfassen der Höhe eines Walzspalts
PCT/EP2012/059088 WO2012168046A1 (de) 2011-06-07 2012-05-16 Messvorrichtung, walzgerüst und verfahren zum erfassen der höhe eines walzspalts

Publications (2)

Publication Number Publication Date
EP2718036A1 EP2718036A1 (de) 2014-04-16
EP2718036B1 true EP2718036B1 (de) 2015-07-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12720897.3A Active EP2718036B1 (de) 2011-06-07 2012-05-16 Messvorrichtung, walzgerüst und verfahren zum erfassen der höhe eines walzspalts

Country Status (11)

Country Link
US (1) US8869577B2 (zh)
EP (1) EP2718036B1 (zh)
JP (1) JP5735175B2 (zh)
KR (1) KR101517165B1 (zh)
CN (1) CN103596706B (zh)
AR (1) AR086853A1 (zh)
BR (1) BR112013031555A2 (zh)
DE (1) DE102011078139A1 (zh)
RU (1) RU2561847C2 (zh)
TW (1) TW201302335A (zh)
WO (1) WO2012168046A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3210682A1 (de) * 2016-02-23 2017-08-30 Primetals Technologies Germany GmbH Vollständige kompensation von walzenexzentrizitäten
JP6838083B2 (ja) 2016-03-08 2021-03-03 ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． プロセスパラメータの直接測定を用いて転造中の金属ストリッププロファイルを制御するための方法および装置
CN112337971A (zh) * 2020-11-03 2021-02-09 洛阳万基铝加工有限公司 一种新型铝箔轧制机
CN116586434B (zh) * 2023-07-19 2023-09-08 邢台纳科诺尔精轧科技股份有限公司 电池极片轧机辊缝调节装置及方法

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US2032584A (en) 1931-12-04 1936-03-03 Irving Trust Co Distance and impression gauge
GB886238A (en) 1957-05-16 1962-01-03 Karl Bertil Gunnarsson Malmber Gauge or similar device for measuring the space between two working rollers
US3046686A (en) 1959-09-08 1962-07-31 Arnold B Fogle Work of art in three dimension and method of making same
DE1752947A1 (de) 1968-08-10 1971-04-15 Moeller & Neumann Gmbh Messeinrichtung zur Erfassung des Walzspaltes
DE2404763C2 (de) 1974-02-01 1982-05-13 Vereinigte Flugtechnische Werke Gmbh, 2800 Bremen Meßvorrichtung zur Erfassung des Spaltes eines Arbeitswalzenpaares
US4044580A (en) 1975-07-02 1977-08-30 Marotta Scientific Controls, Inc. Rolling mill gap sensor
DE2639240C2 (de) 1976-08-27 1978-02-09 Mannesmann AG, 4000 Düsseldorf; Maschinenfabrik Gustav Wiegard, 5810 Witten MeS- und Prüfvorrichtung für Stranggießkokillen und Führungsrollenbahnen mit einander gegenüberliegenden Rollenbahnen
SU1014610A1 (ru) * 1981-07-16 1983-04-30 Особое проектно-конструкторское бюро Научно-производственного объединения "Черметавтоматика" Устройство дл измерени зазора между валками прокатного стана
AT382019B (de) 1984-04-06 1986-12-29 Voest Alpine Ag Messeinrichtung zum messen des spaltes zwischen zwei walzen oder rollen sowie verfahren zur durchfuehrung der messung
JPH0315208Y2 (zh) * 1985-01-23 1991-04-03
SU1362518A1 (ru) * 1985-05-16 1987-12-30 Московский институт стали и сплавов Способ управлени режимом прокатки на обжимном стане
EP0698428B1 (de) 1994-07-08 1999-03-31 Siemens Aktiengesellschaft Einrichtung zur Erfassung des Walzspaltes zwischen zwei Arbeitswalzen eines Walzgerüstes
DE10054580A1 (de) 2000-11-03 2002-05-08 Sms Demag Ag Mehrwalzengerüst
ATE327059T1 (de) 2001-11-23 2006-06-15 Siemens Ag Schräglagenregelung
ATE497414T1 (de) 2001-12-12 2011-02-15 Sms Siemag Ag Einrichtung zur messung des walzspaltes zwischen arbeitswalzen eines kalt- oder warmwalzgerüstes
CN102039390B (zh) * 2010-11-11 2012-08-15 哈尔滨工业大学 冶金铸机双摆角式辊缝测量装置

Also Published As

Publication number Publication date
US20140150508A1 (en) 2014-06-05
JP5735175B2 (ja) 2015-06-17
CN103596706B (zh) 2016-05-04
EP2718036A1 (de) 2014-04-16
AR086853A1 (es) 2014-01-29
US8869577B2 (en) 2014-10-28
WO2012168046A1 (de) 2012-12-13
KR101517165B1 (ko) 2015-05-04
JP2014518773A (ja) 2014-08-07
KR20140010994A (ko) 2014-01-27
BR112013031555A2 (pt) 2017-03-21
RU2561847C2 (ru) 2015-09-10
DE102011078139A1 (de) 2012-12-13
CN103596706A (zh) 2014-02-19
TW201302335A (zh) 2013-01-16
RU2013158846A (ru) 2015-07-20

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