EP1419023B1 - Procede et dispositif de transport d'une fausse barre dans une position de fermeture a la sortie d'une coquille de coulee continue de metal liquide, notamment d'acier liquide - Google Patents

Procede et dispositif de transport d'une fausse barre dans une position de fermeture a la sortie d'une coquille de coulee continue de metal liquide, notamment d'acier liquide Download PDF

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Publication number
EP1419023B1
EP1419023B1 EP02751131A EP02751131A EP1419023B1 EP 1419023 B1 EP1419023 B1 EP 1419023B1 EP 02751131 A EP02751131 A EP 02751131A EP 02751131 A EP02751131 A EP 02751131A EP 1419023 B1 EP1419023 B1 EP 1419023B1
Authority
EP
European Patent Office
Prior art keywords
support
elements
continuous casting
dummy
casting mould
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 - Lifetime
Application number
EP02751131A
Other languages
German (de)
English (en)
Other versions
EP1419023A1 (fr
Inventor
Dietmar Lohse
Hans Siemer
Thomas Kerber
Horst Von Wyl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
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Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1419023A1 publication Critical patent/EP1419023A1/fr
Application granted granted Critical
Publication of EP1419023B1 publication Critical patent/EP1419023B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/081—Starter bars

Definitions

  • the invention relates to starting elements for transporting a cast strand in strand withdrawal direction from a continuous casting mold for liquid metal, in particular for liquid steel, by a support roll stand and a method for operating one of the starting elements.
  • the Anfahrstrang can either contrary to the production direction by a (curved) part of the casting machine to the continuous casting mold from the bottom up or out through the continuous casting mold, for example. from a car (JP-52 11 45 31 A) are introduced.
  • the entire start-up strand in the casting direction (production direction) is then passed through the strand guide, i. through a back-up stand, moved through.
  • the front part of the Anfahrstranges is separated from the casting strand and placed next to or above the continuous casting in a parking position.
  • Antriebs learnedenn driven pairs of support rollers
  • British patent application GB 2 043 505 A discloses a semi-continuously operating apparatus for continuous casting. It discloses a dummy head, which is moved by means of a piston-cylinder unit to the output of a continuous casting mold and away from it. The piston-cylinder unit and the starting head are each locked in desired positions with pins that can be moved transversely to their direction of movement.
  • the Austrian document AT-A-312 179 discloses a method and an apparatus for retracting a starter train into a continuous casting mold.
  • the Anfahrstrang has a dummy head and is otherwise articulated. It is moved from the pouring side via a support device in the mold.
  • the cast strand leaves the mold at its exit side and is collected by a guide body consisting of driven and non-driven rollers.
  • the cast strand is pulled out of the mold with the aid of the driven rollers, the so-called driver rolls.
  • the present invention seeks to provide two alternative starting elements for transporting a cast strand from a continuous casting mold and an alternative method for operating one of the starting elements.
  • each module carries on a frame formed of basic bodies in opposite directions out or swivel support elements. Two or three such frames are hinged together, so that the sheet movement is taken into account in a Bogenstrangg imaginestrom.
  • the structural design of one of the modules which can be constructed largely the same, is designed such that on the frame perpendicular to the direction of displacement, pairwise adjusting spindles are provided on which adjustable support elements are guided, and that the Verstellspindelgeophuse are attached to frame longitudinal beams. This creates a compact, low profile.
  • the strand thickness of the cast strand to be cast is taken into account by the fact that the thickness of the base body and / or the Verstellspindelgeophuse with electric motor corresponds to the support roller jaw width of the back-up roll stand. Cast thicknesses of less than 200 mm can be assumed.
  • a particularly advantageous embodiment of the support elements results from the fact that the support elements are designed as pairs, at an adjustable angle to each other extending, tangentially abutting the support rollers support plates.
  • the opening angle between each two such support plates can be adjusted and when resting against the support roller, a high supporting force can be transmitted without damaging the respective support roller.
  • the advantage here is that different diameters of support rollers can be considered.
  • Another advantage results from the fact that a control and power supply device is arranged on one of the modules. As a result, the modules are completely self-sufficient and can be operated without changing electrical connections or the like.
  • control device is connected via radio with the control center of the continuous casting.
  • the guide in each case via the connecting element, while the spreading take over only the driving force by supporting the circumference of the rollers of the back-up roll stand.
  • each roller are rotatably mounted.
  • connection element consists of a length-adjustable connecting rod.
  • the length adjustment of the connecting rod can also be designed in that the connecting rod is formed from a hydraulic piston-cylinder unit.
  • the device for transporting a starting element 1 in a Verschoudregna 2 at the output 3a of a continuous casting mold 3 for liquid metal, in particular for liquid steel, from which a detachably connected to the starting element casting strand can be transported through a back-up stand 4 in strand withdrawal 5, depends an independent approach head 6 without the previously customary starting line, which would be subject to the disadvantages described.
  • the Anfahrkopf 6 by means of a the course 7 of the back-up stand 4 customizable guide and / or drive device 8, which is supported on one or more pairs of rollers 9 of the support roller stand 4 and at least one own mittransport striv drive 10, which may be a rotary drive, gradually or continuously in the back-up roll stand 4 forward or backward movable.
  • the bending ability of the drive and / or guide device 8 depends on the course 7 of the support roll stand 4 (FIG. 1).
  • the approach head 6 (FIG. 2) is articulated with two or three (as shown) in the direction of movement 11 in opposite directions, individually lockable on opposite pairs of support rollers 9 of the back-up stand 4 modules a, b, c connected.
  • Each module a, b, c has a frame 12 of a plurality of base bodies 13.
  • On the frame are hinged rods 14 for connection to the next module b, c attached (see Fig. 3A, 3B).
  • Verstellspindelgephinuse 15 Between the frame 12 and on both sides of the frame 12 mounted Verstellspindelgepuruse 15 extend adjusting spindles 16 on which support elements 17 by turning the adjusting spindles 16 back and forth are movable. When the adjusting spindles 16 are rotated, the supporting elements 17 pivot in the opposite direction 18 (see FIG. 4), depending on the direction of rotation, unless they are prevented from pivoting by a handlebar 19.
  • a control and power supply unit 22 is mounted (Fig. 2).
  • the control unit 22 can communicate via radio with the control center of the continuous casting.
  • the support members 17 each in a support roller spacing 24 (adjustable jaw width 38) can pivot to support themselves, so that the respective module a, b, c can be moved.
  • the adjusting spindle housings 15 are fastened to longitudinal bars 12a.
  • FIG. 6 A preferred support of the support elements 17 is shown in FIG. 6.
  • the support elements 17 are formed as pairs at an angle 25 to each other, on the support rollers 9 tangentially abutting support plates 17a and 17b.
  • the toggle mechanism have the adjusting spindles 16. The latter are each rotatably mounted in the Verstellspindelgephinuse 15 in the associated threaded nut.
  • FIG. 1 A second, fundamental embodiment for the starting element is shown in FIG.
  • the connecting element 32 is formed from a length-adjustable connecting rod 32a.
  • the connecting rod 32a consists of a hydraulic piston-cylinder unit 35.
  • the spreading drive can also be selected from a hydraulic Geradschubantrieb 36.
  • Figure 8 shows how the Anfahrkopf 6 by means of spring elements 37, which are arranged between the Anfahrkopf 6 and the spreading 31 a and 31 b, from the bottom into the continuous casting mold 3 can import, whereby the entire process of retraction into the continuous casting mold. 3 can be fully automated.
  • the two embodiments described for the starting element according to FIGS. 1 and 7 can be used in all existing continuous casting without major structural changes.
  • the pairs of rollers 9 of the back-up roll stand 4 also make no changes to the camps u. Like. Required and provide no additional requirements for the design of the bearing housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Claims (11)

  1. Fausse barre (1) pour transporter une barre de coulée hors d'une coquille oscillante de coulée continue (3) pour un métal liquide, en particulier pour de l'acier liquide, à travers l'intérieur d'une cage à cylindres de soutien (4), comportant :
    une tête de fausse barre (6) qui est réalisée pour se relier, dans une position de fermeture (2), à la sortie (3a) de la coquille de coulée continue (3), de façon détachable à la barre de coulée ; et
    au moins deux modules (a, b, c) reliés en articulation l'un à l'autre dont l'un est relié à la tête de fausse barre (6) sur le côté de celle-ci détourné de la coquille de coulée continue,
    caractérisée en ce que
    lesdits au moins deux modules (a, b, c) présentent chacun un entraînement propre (10) co-transporté qui comprend pour chaque module :
    des broches de déplacement (16);
    des éléments de soutien (17) ; et
    une barre de guidage (19) ;
    les éléments de soutien étant mobiles en pivotement en fonction de la direction de rotation lors de la rotation des broches de déplacement ; et
    lorsque les éléments de soutien (17) sont empêchés de pivoter par la barre de guidage (19), les éléments (17) sont mobiles en va-et-vient lors de la rotation de la broche de déplacement (16),
    de sorte que les éléments de soutien (17) sont susceptibles de pivoter vers l'intérieur pour prendre appui contre les rouleaux de soutien (9) de la cage de cylindres de soutien (4), de sorte que les modules (a, b, c) peuvent être déplacés.
  2. Fausse barre (1) selon la revendication 1,
    caractérisée en ce que
    chacun des modules (a, b, c) comprend un cadre (12) formé par des corps de base (13), qui porte les éléments de soutien (17) susceptibles de pivoter vers l'intérieur et vers l'extérieur dans des directions opposées (18).
  3. Fausse barre (1) selon la revendication 2,
    caractérisée en ce que
    les cadres (12) comprennent chacun deux cadres longitudinaux (12a) sur lesquels est fixé un boîtier à broche de déplacement (15) respectif, et en ce que les boîtiers à broche de déplacement comprennent chacun un moteur électrique (23) pour faire tourner l'une des broches de déplacement (16) montées sur le cadre (12).
  4. Fausse barre (1) selon l'une des revendications 1 à 3,
    caractérisée en ce que
    les éléments de soutien (17) sont réalisés sous forme de plaques de soutien (17a, 17b) s'étendant par paire sous un angle réglable (25) l'une par rapport à l'autre et prenant appui tangentiellement contre les rouleaux de soutien (9).
  5. Fausse barre (1) selon l'une des revendications 1 à 4,
    caractérisée en ce qu'une unité de commande et d'alimentation en énergie (22) est agencée sur l'un des modules (a, b, c).
  6. Fausse barre (1) selon la revendication 5,
    caractérisée en ce que
    l'unité de commande et d'alimentation en énergie (22) est connectée par radio à un poste de contrôle pour la coquille de coulée continue.
  7. Fausse barre (1) pour transporter une barre de coulée hors d'une coquille oscillante de coulée continue (3) pour un métal liquide, en particulier pour de l'acier liquide, à travers une cage à cylindres de soutien (4), comportant :
    une tête de fausse barre (6) qui est réalisée pour se relier, dans une position de fermeture (2), à la sortie (3a) de la coquille de coulée continue (3), de façon détachable à la barre de coulée,
    caractérisée par un entraînement propre (10) co-transporté qui comprend :
    deux paires d'éléments écarteurs pivotants (31a, 31b), l'une des paires étant couplée avec la tête de fausse barre (6) via des éléments ressorts (37) ; deux entraînements d'écartement (36) pour faire pivoter les éléments écarteurs (31a, 31b) des deux paires à des distances de rouleaux (28) de deux rouleaux de soutien (9) successifs sur un côté respectif de la cage à cylindres de soutien (4) ; et un élément de liaison (32) réglable vis-à-vis de sa longueur pour la liaison articulée des deux paires d'éléments écarteurs (31a, 31b) et pour déplacer l'une des paires d'éléments écarteurs (31a, 31b) le cas échéant conjointement avec la barre de coulée à l'intérieur de la cage à cylindres de soutien (4) par rapport à l'autre paire d'éléments écarteurs (31a, 31b) prenant appui entre les rouleaux de soutien (9) dans la direction d'enlèvement de barre (5) ou en sens opposé.
  8. Fausse barre (1) selon la revendication 7,
    caractérisée en ce que
    des rouleaux respectifs (34) sont montés mobiles en rotation aux extrémités des éléments écarteurs (31a, 31b).
  9. Fausse barre (1) selon l'une des revendications 7 ou 8,
    caractérisée en ce que
    l'élément de liaison (32) est constitué par une barre de liaison (32a) réglable vis-à-vis de sa longueur.
  10. Fausse barre (1) selon la revendication 9,
    caractérisée en ce que la barre de liaison (32a) est formée par une unité à piston-et-cylindre hydraulique (35).
  11. Procédé pour faire fonctionner une fausse barre (1) selon la revendication 1, le procédé comprenant les étapes suivantes :
    pivotement vers l'extérieur des éléments de soutien (17) de l'un au moins des modules et soutien des éléments de soutien pivotés (17) sur un ou entre deux rouleaux de soutien (9) de la cage à cylindres de soutien (4) ; et
    déplacement des modules (a, b, c) conjointement avec la tête de fausse barre (6) et le cas échéant conjointement avec la barre de coulée par rapport aux éléments de soutien (17) en appui à l'intérieur de la cage à cylindres de soutien (4) dans la direction d'enlèvement de barre ou en sens opposé.
EP02751131A 2001-07-11 2002-07-10 Procede et dispositif de transport d'une fausse barre dans une position de fermeture a la sortie d'une coquille de coulee continue de metal liquide, notamment d'acier liquide Expired - Lifetime EP1419023B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133755A DE10133755A1 (de) 2001-07-11 2001-07-11 Verfahren und Einrichtung zum Transportieren eines Anfahrelementes in eine Verschliessstellung am Ausgang einer Stranggiesskokille für flüssiges Metall, insbesondere für flüssigen Stahl
DE10133755 2001-07-11
PCT/EP2002/007690 WO2003008130A1 (fr) 2001-07-11 2002-07-10 Procede et dispositif de transport d'une fausse barre dans une position de fermeture a la sortie d'une coquille de coulee continue de metal liquide, notamment d'acier liquide

Publications (2)

Publication Number Publication Date
EP1419023A1 EP1419023A1 (fr) 2004-05-19
EP1419023B1 true EP1419023B1 (fr) 2006-08-30

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ID=7691435

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Application Number Title Priority Date Filing Date
EP02751131A Expired - Lifetime EP1419023B1 (fr) 2001-07-11 2002-07-10 Procede et dispositif de transport d'une fausse barre dans une position de fermeture a la sortie d'une coquille de coulee continue de metal liquide, notamment d'acier liquide

Country Status (4)

Country Link
EP (1) EP1419023B1 (fr)
AT (1) ATE337871T1 (fr)
DE (2) DE10133755A1 (fr)
WO (1) WO2003008130A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110640101B (zh) * 2019-10-30 2024-08-16 广东工业大学 一种牵引机构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312179B (de) * 1971-03-15 1973-12-27 Concast Ag Verfahren und Vorrichtung zum Einfahren des Anfahrstranges in eine Kokille beim Stranggießen
GB2043505A (en) * 1979-02-28 1980-10-08 Kramator Ni I P Technolog I Ma Semicontinuous casting apparatus
FR2572315B1 (fr) * 1984-10-26 1987-04-24 Clecim Sa Dispositif de support de mannequin pour machine de coulee continue et procedes d'utilisation

Also Published As

Publication number Publication date
ATE337871T1 (de) 2006-09-15
WO2003008130A1 (fr) 2003-01-30
DE10133755A1 (de) 2003-01-30
EP1419023A1 (fr) 2004-05-19
DE50208018D1 (de) 2006-10-12

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