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EP0060484B2 - Dispositif de guidage d'une fausse barre rigide - Google Patents
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EP0060484B2 - Dispositif de guidage d'une fausse barre rigide - Google Patents

Dispositif de guidage d'une fausse barre rigide Download PDF

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Publication number
EP0060484B2
EP0060484B2 EP82101825A EP82101825A EP0060484B2 EP 0060484 B2 EP0060484 B2 EP 0060484B2 EP 82101825 A EP82101825 A EP 82101825A EP 82101825 A EP82101825 A EP 82101825A EP 0060484 B2 EP0060484 B2 EP 0060484B2
Authority
EP
European Patent Office
Prior art keywords
continuous casting
strand
casting installation
withdrawal
dummy bar
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
EP82101825A
Other languages
German (de)
English (en)
Other versions
EP0060484B1 (fr
EP0060484A1 (fr
Inventor
Carlos Ros Navarro
José Maria Mallén Fuentes
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.)
Concast Standard AG
Original Assignee
Concast Service Union 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=4216300&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0060484(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Concast Service Union AG filed Critical Concast Service Union AG
Publication of EP0060484A1 publication Critical patent/EP0060484A1/fr
Publication of EP0060484B1 publication Critical patent/EP0060484B1/fr
Application granted granted Critical
Publication of EP0060484B2 publication Critical patent/EP0060484B2/fr
Expired 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
    • B22D11/085—Means for storing or introducing the starter bars in the moulds

Definitions

  • Continuous caster with a device for introducing a rigid, bent cold strand through a curved secondary cooling zone comprising approximately a quarter-circle arc into a mold, the cold strand being dimensioned such that when its head end closes the mold from below, its foot end with a drive roller of the driving judge on Is engaged at the end of the quarter-circle arc, a connecting device with which the foot end of the cold strand moved by the driving judge can be coupled and uncoupled to an additional transport device, with the aid of which the cold strand can be moved into a rest position after leaving the driving judge or from the rest position into the Driver can be introduced.
  • Such a continuous caster is known from DE-OS 2629453, in which the connecting device also ensures the suspension of the cold strand in its rest position.
  • the invention is therefore intended to achieve the object of providing a continuous casting installation in which the hot-strand guides for maintenance work (for example changing rollers) can be conveniently reached from above with a crane.
  • the additional transport device consists of a holding arm which can be pivoted by means of a power source and which is pivotably articulated at one end in the center of the movement path at a center and at the other end has a connecting device formed from a snap mechanism that enables an independent, locking and unlocking foot end, and that the holding arm together with the connecting device by means of the power source around the center point between a coupling position and a rest position that keeps the cold strand away from the hot strand guide and one that has access to Maintenance position releasing hot strand guide is pivotable.
  • the connecting device can also be designed such that the snap mechanism has a plate spring that can be tensioned when the cold strand is pulled out, the force of which is greater than the weight of the cold strand, but less than the sum of this weight and the tensile force of the drive judge.
  • the holding arm is advantageously designed such that it is almost vertical in the maintenance position, horizontal in the coupling position and in a central position between the two in the rest position.
  • the power source for pivoting the holding arm advantageously consists of a hydraulic cylinder.
  • a continuous casting mold 1 is arranged on a casting platform 2, to which the secondary cooling zone 6 adjoins in the casting direction, the roller guide and spraying device of which are not shown.
  • a driving straightener is arranged, which has a driving roller 7 and a bending roller 8.
  • the roller 7 is set to the strand with a defined force which is sufficient to transmit the driving force of the roller to the strand.
  • the roller 8 is also placed against the strand and under a force sufficient to straighten the arcuate strand.
  • the roller 8 is mounted in such a way that it follows the yielding strand under its force, whereby it can move in the direction of the arrow 9.
  • a support roller 10 is arranged on the opposite side of the strand, which from the position shown along the arrow 10 " is pivotable into position 10 ', where it forms part of a horizontal roller guide consisting of rollers 11.
  • the components shown so far serve to guide both the hot and the cold strand (with the exception of the rollers 11); the parts to be described now serve exclusively to guide and hold the cold strand.
  • the cold strand lying in its rest position on the rollers 12 and 13 - represented by its head end 16 and its foot end 15 - is designed as a rigid cold strand, it having an arcuate shape which makes it possible to run it along an arcuate path, the radius of which is the matches its own curvature, which is the same as the curvature of the secondary cooling zone 6.
  • the cold strand is detachably connected to a holding arm 22 by means of its foot end 15 and can be displaced by pivoting this holding arm into position 17.
  • the holding arm 22 is pivoted by means of a hydraulic cylinder 19 about the pivot point 20.
  • the hot strand is pressed down under the pressure of the roller 8 against the first of the rollers 11 and is thus straightened, while the head end of the cold strand is supported by the roller 10 .
  • the head end of the cold strand is shaped in such a way that it is firmly connected to the hot strand by train, but is easily detachable by shearing.
  • the hot strand thus directed now abuts horizontally against the roller 10, which is supported only against vertically occurring forces, and pivots it into the position 10 ', in which it forms part of the horizontal roller guide consisting of the rollers 11.
  • the cold strand is continued without interruption until the holding arm 22 reaches position 17.
  • the head end then remains in position 16, supported by the roller 12, where it no longer interferes with the movement of the warm strand.
  • the holding arm 22 is designed and mounted in such a way that, after the cold strand has been brought into the position 15 ", 16", it can be folded up into the position 17 ", and after the hydraulic cylinder 19 has been released, it is pulled up by means of the crane mentioned and secured in this position in a manner not shown.
  • This securing can take place by means of a snap mechanism or the like. After securing, the crane can be pulled off the holding arm 22 and used for the maintenance work. After the end, the holding arm 22 is reversed in the order of the working steps lowered into the horizontal position.
  • the cold strand remains in its position 15 ", 16" until the next sprue.
  • FIG. 1 shows in detail the connecting device 18 of FIG. 1, which automatically connects the foot end 30 of the cold strand to the holding arm 22.
  • the foot end 30 of the cold strand guided between rollers 31 and 32 has a notched stop surface 33 and a nose 43.
  • the connecting device consists of a rocker arm 34 mounted on a rocker arm 35, a spiral spring 37 holding the rocker arm and the rocker arm in a certain relative position to one another, and a plate spring 46 which tries to hold the rocker arm with great force in one of its two extreme positions.
  • An armature 45 of a Telller spring 46 is articulated on the pivot lever 35 by means of a bearing pin 44, which biases the pivot lever into the rest position.
  • the plate spring 46 is mounted in a housing 48 and is tensioned by means of a flange 47 fastened to the armature 45. When the foot part 30 moves downward, the force of the plate spring must be overcome via the levers 34 and 35.
  • the cold strand has a weight of 2000 kg
  • the force of the drive rollers in the drive straightener is approximately 4000 kg
  • the force of the plate spring is therefore somewhat less than 6000 kg, in order to enable the cold strand to be pulled out properly, since the pulling force is the sum is the weight of the hanging cold strand and the tensile force of the driving judge.
  • the pin 44 Since the path of the pin 44 from its rest position to the position 44 " does not run straight but on a circle with the center in the pin 38, the pin 44 must either be guided in an elongated hole in the pivot lever 35, or the plate spring housing 48 must be pivotable on the holding arm 17 'be attached.
  • the rocking lever 34 When the foot end 30 is moved into the connecting device, the rocking lever 34 is pivoted counterclockwise into the position 34 'through its inclined surface 49 under a movable pivot point 39, the coil spring 37 being tensioned, which is moved from the pin 38 to a pin only connected to the rocker arm 34 40 is excited.
  • the foot end 30 is retracted so far (position 30 ' ) that the rocker arm 34, after sliding off the nose 43', can return to its rest position, in which the foot end secures against an undesired downward movement.
  • the connecting device described works independently with regard to the engagement of the foot end and can also be solved automatically by exceeding a predetermined tractive force threshold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (6)

1. Installation de coulée continue comprenant un dispositif pour introduire une fausse barre (15, 16) rigide cintrée dans une lingotière (1) à travers une zone de refroidissement secondaire (6) curviligne, s'étendant sur environ un quart de cercle, la fausse barre (15, 16) étant dimensionnée de manière que, lorsque son extrémité de tête (16) obture la lingotière d'en bas, son extrémité de pied soit saisie par un rouleau entraîneur (7) du redresseur-entraîneur à la fin du quart de cercle, un dispositif de liaison (18) par lequel l'extrémité de pied de la fausse barre, déplacée par le redresseur-entraîneur, peut être accouplée à un dispositif de transport supplémentaire (19, 22) et désaccouplée de lui, dispositif de transport à l'aide duquel la fausse barre (15, 16), après qu'elle a quitté le redresseur-entraîneur (7, 8), peut être amenée à une position de repos et être introduite dans le redresseur-entraîneur à partir de la position de repos, caractérisée en ce que le dispositif de transport supplémentaire est constitué d'un bras support (22) qu'un organe moteur (19) peut faire pivoter, bras qui est articulé par une extrémité en un point médian (20) au centre du trajet courbe des barres et est pourvu, à son autre extrémité, d'un dispositif de liaison (18) formé par un mécanisme à déclic (34, 35, 37) permettant l'accrochage et le décrochage automatique de l'extrémité de pied (15), et que l'organe moteur (19) est capable de faire pivoter le bras support (22) ensemble avec le dispositif de liaison (18), autour du point médian (20), entre une position d'accouplement (17') et une position de repos, où la fausse barre (15,16) est maintenue éloignée du guide (7, 8, 11) de la barre coulée chaude, ainsi qu'une position d'entretien (17") libérant l'accès au guide de la barre coulée.
2. Installation de coulée continue selon la revendication 1, caractérisée en ce que le mécanisme à déclic (34, 35, 37) comporte un ressort à disques (46) qui agit en sens opposé à un déplacement d'extraction de l'extrémité de pied (15).
3. Installation de coulée selon la revendication 2, caractérisée en ce que force du ressort à disques est inférieure, d'une valeur de sécurité à la somme du poids de la fausse barre (15,16) et des forces de traction des rouleaux entraîneurs (7, 9).
4. Installation de coulée continue selon l'une des revendications 1-3, caractérisée en ce que la position d'accouplement (17') du bras support (22) correspond à une position horizontale, la position d'entretien (17") correspond à une position presque verticale, et la position de repos (17) correspond à une position médiane située entre les deux autres.
5. Installation de coulée continue selon l'une des revendications 1-4, caractérisée en ce que le bras support (22) est conçu comme passerelle d'entretien sur laquelle on peut circuleur.
6. Installation de coulée continue selon l'une des revendications 1-5, caractérisée en ce que l'organe moteur (19) est un vérin hydraulique.
EP82101825A 1981-03-12 1982-03-08 Dispositif de guidage d'une fausse barre rigide Expired EP0060484B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1689/81A CH652627A5 (de) 1981-03-12 1981-03-12 Stranggiessanlage.
CH1689/81 1981-03-12

Publications (3)

Publication Number Publication Date
EP0060484A1 EP0060484A1 (fr) 1982-09-22
EP0060484B1 EP0060484B1 (fr) 1984-09-19
EP0060484B2 true EP0060484B2 (fr) 1988-11-17

Family

ID=4216300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101825A Expired EP0060484B2 (fr) 1981-03-12 1982-03-08 Dispositif de guidage d'une fausse barre rigide

Country Status (8)

Country Link
US (1) US4478271A (fr)
EP (1) EP0060484B2 (fr)
JP (1) JPS57159249A (fr)
CA (1) CA1189677A (fr)
CH (1) CH652627A5 (fr)
DE (1) DE3260764D1 (fr)
ES (1) ES8303146A1 (fr)
ZA (1) ZA821620B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4590984A (en) * 1981-11-27 1986-05-27 Sms Concast Inc. Dummy bar disconnecting arrangement
US4660616A (en) * 1986-02-26 1987-04-28 Kabushiki Kaisha Kobe Seiko Sho Starter bar apparatus in a continuous casting assembly
US6441078B1 (en) 2000-03-08 2002-08-27 E. I. Du Pont De Nemours And Company Aqueous powder coat dispersions, process for their preparation and their use
CN110640101B (zh) * 2019-10-30 2024-08-16 广东工业大学 一种牵引机构

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213962B (de) * 1962-07-04 1966-04-07 Demag Ag Anfahrbolzen fuer Stranggiessanlagen
US3344844A (en) * 1964-08-10 1967-10-03 Koppers Co Inc Apparatus for handling a curved continuous casting starting bar
DE1558324A1 (de) * 1966-05-28 1970-03-19 Uraslky Zd Tyazhelogo Mash Im Kaltstrang fuer Metallstranggussanlage
US3628595A (en) * 1969-10-22 1971-12-21 Koppers Co Inc Pivotally mounted starter bar in a continuous casting machine
US3930533A (en) * 1975-02-27 1976-01-06 Rokop Corporation Continuous casting apparatus with flexible starting bar which is gear-rack supported in storage position
DE2629453C3 (de) * 1976-06-30 1981-01-08 Rokop Corp., Pittsburgh, Pa. (V.St.A.) Förder- und Haltevorrichtung für einen gezähnten, bogenförmig geführten Anfahrstrang einer StranggieBmaschine
DE2714338C3 (de) * 1977-03-31 1984-08-02 Mannesmann AG, 4000 Düsseldorf Anfahrstrang-Transportvorrichtung
US4150710A (en) * 1977-11-02 1979-04-24 Concast Incorporated Dummy bar handling apparatus and method
US4214623A (en) * 1978-07-05 1980-07-29 Witteman Steel Mills Method for continuous casting of metal
AT360690B (de) * 1979-03-19 1981-01-26 Voest Alpine Ag Einrichtung zum ausziehen und zum einbringen eines anfahrstranges bei einer strang- giessanlage

Also Published As

Publication number Publication date
CA1189677A (fr) 1985-07-02
EP0060484B1 (fr) 1984-09-19
ZA821620B (en) 1983-01-26
ES510889A0 (es) 1983-02-01
EP0060484A1 (fr) 1982-09-22
DE3260764D1 (en) 1984-10-25
ES8303146A1 (es) 1983-02-01
JPS57159249A (en) 1982-10-01
US4478271A (en) 1984-10-23
CH652627A5 (de) 1985-11-29

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