EP0006781B1 - Vorrichtung zum Einführen eines Anfahrstranges bei einer Stranggiesseinrichtung - Google Patents

Vorrichtung zum Einführen eines Anfahrstranges bei einer Stranggiesseinrichtung Download PDF

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Publication number
EP0006781B1
EP0006781B1 EP79400350A EP79400350A EP0006781B1 EP 0006781 B1 EP0006781 B1 EP 0006781B1 EP 79400350 A EP79400350 A EP 79400350A EP 79400350 A EP79400350 A EP 79400350A EP 0006781 B1 EP0006781 B1 EP 0006781B1
Authority
EP
European Patent Office
Prior art keywords
basket
dummy bar
fact
mold
frame
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
EP79400350A
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English (en)
French (fr)
Other versions
EP0006781A1 (de
Inventor
Joel Cazaux
André Guyot
Joseph Pietryka
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.)
Fives Cail Babcock SA
Original Assignee
Fives Cail Babcock SA
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
Application filed by Fives Cail Babcock SA filed Critical Fives Cail Babcock SA
Publication of EP0006781A1 publication Critical patent/EP0006781A1/de
Application granted granted Critical
Publication of EP0006781B1 publication Critical patent/EP0006781B1/de
Expired legal-status Critical Current

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    • 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

  • the present invention relates to a device for placing a false ingot for the preparation of a new casting, in a continuous casting installation.
  • a device of this kind comprising a basket in which is housed the false ingot which is separated from the casting line, a handling system for bringing the basket into position above the ingot mold, and means for introducing the false ingot into said ingot mold.
  • the basket containing the false ingot is brought above the mold by means of a traveling crane , then it is placed vertically on the upper edge of the frame of the mold.
  • the false ingot separated from the casting queue is gripped by the hook of a lifting mechanism.
  • This mechanism is integral with a wagon mounted movable on a translation carriage. The carriage and the wagon are stationary during the lifting operation of the false ingot. When the hook reaches the height of the wagon, it enters guides of said wagon. The false ingot is then vertically suspended from the hook. The movement of the wagon along the carriage, the latter remaining stationary, makes it possible to deposit the false ingot in the lying position on a slide or a conveyor arranged on the carriage. The latter is then moved in translation until its front end reaches the vertical of the mold, while the wagon returns to its starting position at the rear of the carriage. The introduction of the false ingot into the ingot mold takes place under the action of a driving member secured to the wagon when the latter again moves towards the front of the carriage.
  • the main object of the present invention is to avoid the drawbacks of known devices.
  • a device for installing a false ingot for the preparation of a new casting in a continuous casting installation comprising a handling system for bringing the false ingot, separated from the queue of casting, in position above the ingot mold, means being provided for controlling the introduction of the false ingot from above into the ingot mold, said handling system consisting of a lifting frame to which are attached lifting means and a translation chassis of which the lifting means are integral, said translation chassis comprising two vertical slides capable of receiving the lifting chassis, and means controlling the movement of the translation chassis along a horizontal track, characterized in that it comprises, in a manner known per se, a basket in which is housed the false ingot separated from the casting queue, in that the basket is mounted on the lifting frame with which it is brought into position above the mold by the translational frame, and in that the basket carries the means for controlling the introduction of the false ingot from above into the mold.
  • the lifting frame is mounted movable along a vertical path.
  • This path includes, on each side of the basket, an amount of the same section as the slides of the translation chassis, so that said slides can be brought into coincidence with said amounts.
  • the lifting frame comprises two uprights connected at their top by a cross member, said uprights, the height of which is equal to that of the slides of the translation frame, being fitted with rollers rolling along the uprights forming a raceway.
  • the lifting frame comprises, on each of its sides, a shackle for hooking the lifting means integral with the translation frame.
  • the lifting means integral with the travel chassis consist of two winches arranged on each side of said chassis, said winches being driven by the same motor.
  • the means for controlling the movement of the translational chassis along its horizontal track consist of rollers rolling on said track, two rollers located on each side of the track being drive rollers.
  • the basket is pivotally mounted on the lifting frame, and the two vertical slides of the translation frame constitute a support allowing the basket to rotate.
  • the basket then advantageously comprises, at its outlet end of the false ingot, an oil cake whose teeth come into engagement with the links of the chain that the false ingot forms, the basket extending over a quarter of a circle around said oil cake.
  • the lifting frame then supports a motor capable of controlling the tilting of the basket at 180 °.
  • the basket is constituted by a circular sheath surrounding a coaxial cake, the teeth of which come into engagement with the links of the chain that the false ingot forms through the interior wall of said sheath.
  • the sheath extends over a circular arc of 270 ° and has rectilinear end sections perpendicular to each other, one being horizontal, the other vertical.
  • two successive teeth of the teeth of the cake are separated by a large gap, the position of these teeth relative to the first tooth encountered by the false ingot when it is introduced into the basket, and the dimension of said interval, being calculated so that the head of the false ingot can come into engagement with the cake.
  • the rotational movement of the cake is controlled by a motor secured to the basket, by means of a clutch.
  • the basket is advantageously mounted on the lifting frame so that it can slide laterally.
  • Figure 1 is an overview of a continuous casting installation equipped with the device according to the invention
  • Figure 2 is a sectional elevation view along line B-B of Figure 3, of the basket containing the false ingot at the time of its separation from the casting line
  • Figure 3 is a sectional view along line A-A of Figure 2
  • Figure 4 is a front view of the entire device, the basket being shown in the inverted position, its lifting frame being housed in the vertical slides of its translation frame
  • Figure 5 is a top view of the device as shown in the previous figure
  • Figures 6, 7 and 8 are schematic views illustrating the main steps of handling the basket.
  • Figures 9, 10 and 11 are views respectively similar to those of Figures 1, 2 and 3 illustrating an alternative embodiment.
  • FIG 1 there is shown schematically a continuous curved casting installation equipped with the device according to the invention.
  • Reference 33 designates an ingot mold at the outlet of which poured product, for example a slab, is guided by a conventional roller guide corset comprising an upper part C and a lower part C '.
  • the false ingot 1 provided for starting the casting is here represented inside a basket 2 which rests on the roller table T of an ingot evacuation conveyor, placed at the outlet of the corset C- VS'. It is from this position that the false ingot 1 is separated, in a manner known per se, from the casting queue, and transported in its basket 2 as will be explained later.
  • the position of the basket 2 has been shown in broken lines at the time of the introduction of the false ingot 1 into the ingot mold 33.
  • the references 12, 19, 22 and 23 denote various elements of the basket 2 handling system which will be described with reference Figures 4 to 8 which show them in more detail.
  • FIGS. 2 and 3 we see the false ingot 1 housed inside its basket 2 as shown in FIG. 1.
  • This basket comprises, at its outlet end, a cake 3 whose teeth come into engagement with the links in the chain formed by the false ingot 1.
  • the latter enters the basket 2 through the entry end of said basket opposite to that which is provided with the cake 3.
  • the motor 5 When the tail 4 of the false ingot 1 comes into contact with a tooth of the cake 3, the latter is rotated by means of the motor 5 via the speed reducer 6.
  • the rotation drive by the motor 5 is stopped as soon as the first link in the chain is engaged with the crab tooth 3 which follows the initially encountered tooth.
  • the starting and stopping of the motor 5 is controlled automatically by an appropriate device.
  • the reference 9 designates a clutch mounted on the output shaft 10 of the reducer 6 and which transmits the rotational movement of the motor 5 to the cake 3 via a shaft 11, concentric with the shaft 10, and on which the cake 3 is mounted.
  • An electrical contact system (not shown) controls the rotation of the cake 3, so that said cake may or may not be driven by the motor 5 on request.
  • a lifting frame 12 of the basket 2 on which said basket is pivotally mounted around a horizontal shaft 13 resting on bearings 14 integral with the lifting frame 12.
  • the latter is essentially formed by two vertical uprights 15 of U-section, disposed on each side of the basket 2 and connected, at their upper part, by a cross member 16.
  • Each upright 15 of the lifting frame 12 is provided with rollers 17 and 18 allowing it to roll along a vertical raceway formed by an upright 19 with a U-section.
  • the two uprights 19, arranged on each side of the chassis 12, are fixed to the ground at their base.
  • each upright 15 is provided with a shackle 20 to which a lifting cable 21 is hooked under the action of which the chassis 12 is raised, the rollers 17 and 18 of its uprights 15 then rolling as previously indicated.
  • the reference 22 generally designates a translation chassis capable of rolling along a horizontal track 23 to which said chassis is suspended.
  • the chassis 22 has, on each of its sides, a vertical slide 24 having strictly the same conformation as the corresponding upright 19 and which is initially coincident with said upright, as is particularly visible in FIG. 6.
  • the chassis 22 comprises in addition lifting means constituted by two winches, such as 25, arranged on each side of said chassis and both driven by the same motor 26, by means of a speed reducer 27. Each cable 21 is wound up around a winch 25, so that the lifting of the chassis 12 is ensured.
  • said chassis continues its upward travel, its uprights 15 engage in the slides 24.
  • the uprights 15 When the chassis 12 reaches the end of its travel, the uprights 15 have left the raceway formed by the uprights 19 and they are entirely housed in the slides 24, the length of which corresponds exactly to that of the uprights 15.
  • the reference 28 designates the separation interval, of short length, provided between the uprights 19 and the slides 24.
  • the chassis 22, or more precisely its slides 24, constitute for it a support authorizing the overturning of the basket 2 which has remained maintained in a horizontal position. as shown in FIG. 2, throughout its rise with the chassis 12.
  • the 180 ° inversion movement of the basket 2 takes place around the shaft 13, and it is controlled by a motor 29 integral with the chassis 12
  • the overturned basket 2 occupies the position illustrated in FIG. 4, the tail 4 of the false ingot 1 being directed downwards. It is then possible to move the chassis 22 along its horizontal path 23 materialized by parallel beams along which roll rollers such as 30 and 31, provided on each side of the chassis 22.
  • the rollers 30 are rollers of drive controlled by motors, such as 32.
  • the translational movement of the chassis 22 driving with it the chassis 12, is stopped as soon as the basket 2 arrives above the ingot mold 33, the tail 4 of the false ingot 1 then being in position of installation in said ingot mold, as illustrated by FIG. 8.
  • the motor 5 controls the rotation of the cake 3 so that the false ingot 1 descends inside the ingot mold 33 up to that its tail 4 engages with motor rollers of the corset C ⁇ C 'which drive the false ingot 1 until its head 8 comes to obstruct the base of the ingot mold 33.
  • the passage of the head 8 around the cake 3 is ensured thanks to the interval 7 provided e between two teeth of cake 3, as indicated above.
  • the reference 34 designates the pouring floor above which the horizontal track 23 of the chassis 22 is arranged.
  • the basket 2 In the case of FIG. 6, the basket 2 is in the starting position, at the time of the separation of the false ingot 1 from the casting line. It is important that the uprights 19 are placed strictly in coincidence with the slides 24. This is obtained by immobilizing the chassis 22 in a suitable position along its track 23. Stops, not shown, could advantageously limit the stroke of the chassis 22 towards the right, beyond said position.
  • FIG. 7 the basket 2 is shown during overturning around the shaft 13 in the direction indicated by the arrow. The slides 24 and the uprights 19 are still in coincidence.
  • the false ingot 1 When the false ingot 1 is in the starting position, its head 8 obstructing the base of the ingot mold 33, it is possible to carry out a new casting.
  • the basket 2 must first be returned to its starting position.
  • the handling of the basket 2 emptied of the false ingot 1 is carried out by proceeding in the opposite direction to the operations which have just been described.
  • the chassis 22 is moved until its slides 24 come into coincidence with the uprights 19, the basket 2 is then tilted so as to return it to its position for receiving the false ingot, and we lowers the chassis 12, the uprights 15 of which come out of the slides 24 to engage the uprights 19 of their raceway.
  • the return operation is finished when the chassis 12 returns to its position illustrated in FIG. 6. A new casting can then begin.
  • FIGS 9 to 11 illustrate an alternative embodiment according to which the basket is designed so that it can be mounted on the lifting frame, any tilting of said basket being avoided.
  • the reference 100 generally designates a basket delimited by two vertical side walls, respectively 101 and 103, and by an intermediate envelope wall 104.
  • the outline of the latter has the shape of an arc of circle extending over 270 °, each end of said circular arc being extended by a straight line.
  • the basket 100 comprises a sheath 102 arranged along the contour of the wall 104.
  • the outer wall of the sheath 102 is constituted by the wall 104.
  • the inner wall of the sheath 102 is formed by two elements of the walls 105 and 106, respectively integral walls 101 and 103. These two wall elements, arranged facing one another, are arranged parallel to the wall 104 over the entire extent of its contour.
  • the sheath 102 is laterally limited by the walls 101 and 103, more precisely by the parts of these walls included between the wall elements 105 and 106 and the wall 104.
  • the sheath 102 thus defined extends over a circular arc of 270 ° and has rectilinear end sections 107 and 108 perpendicular to each other.
  • Section 107 arranged horizontally, constitutes the entry section of the false ingot 1, while section 108, arranged vertically, constitutes the exit section of said false ingot.
  • the sheath 102 surrounds a cake 3 coaxial with said sheath.
  • the teeth of this cake come into engagement with the links of the chain formed by the false ingot 1 housed in the sheath 102, through the interior wall of said sheath, more precisely through the passage provided between the two wall elements 105 and 106.
  • the basket 100 is mounted on the lifting frame 12 so that it cannot pivot. However, it can be mounted so that it can slide laterally in order to correctly position the inlet section 107 relative to the false ingot 1. This latter arrangement is also valid for mounting on the lifting frame 12 of the basket 2 illustrated. in Figures 1 to 8.
  • the tail 4 of said false ingot comes into contact with the first predetermined tooth of the cake 3, the latter is rotated until the false ingot 1 reaches the storage position illustrated in FIG. 10. During this rotation the tail 4 follows a circular path ascending over 180 °, then descending over 90 °, and then a straight path descending along the outlet section 108.
  • the basket 100 can then be moved by means of the handling system already described, so as to bring the section 108 into alignment with the cavity of the ingot mold 33.
  • the rotation of the cake 3 then controls the descent of the false ingot 1.
  • the exit of the false ingot 1 out of the sheath 102 taking place in a descending direction the reversal provided for the basket 2 is avoided to bring the tail 4 of the false ingot 1 above the cavity of the ingot mold 33 .
  • a rotation of the cake 3 in the opposite direction to the previous ones can also be controlled when the basket 100 is stopped above the casting floor 34. It is thus possible to extract the head 8 from the false ingot 1 to replace it or possibly remove a section of ingot attached to said head.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Casting Devices For Molds (AREA)

Claims (9)

1. Vorrichtung zum Einführen eines Anfahrstranges bei einer Stranggiesseinrichtung, umfassend ein Fördersystem das den vom gegossenen Strang getrennten Anfahrstrang (1) in die geeignete Stellung oberhalb der Kokille (33) bringt, wobei Mittel (3) zum Einführen des Anfahrstranges (1) von oben in die Kokille (33) vorgesehen sind und das Fördersystem aus einem Hubrahmen (12), auf dem Hubmittel (21, 25) befestigt sind, und einem mit den Hubmitteln (21, 25) verbundenen Fahrrahmen (22) besteht, der zwei vertikale Gleitführungen (24) zur Aufnahme des Hubrahmens (12) sowie Antriebsmittel (30, 32) zur Verschiebung des Fahrrahmens (22) längs einer horizontalen Bahn (23) besitzt, dadurch gekennzeichnet, dass sie einen Korb (2 bzw. 100) in einer an sich bekannten Weise umfasst, in den der vom gegossenen Strang getrennte Anfahrstrang (1) untergebracht wird, dass der Korb (2 bzw. 100) auf dem Hubrahmen (12) montiert ist, mit dem er durch den Fahrrahmen (22) in Stellung oberhalb der Kokille (33) gebracht wird und dass der Korb (2 bzw. 100) die Antriebsmittel (3) zum Einführen des Anfahrstranges (1) von oben in die Kokille (33) trägt.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Antriebsmittel (3) zum Einführen des Anfahrstranges (1) in die Kokille (33) ein mit dem Korb (2 bzw. 100) verbundenes Kettenrad umfassen, dessen Zähne in die Kettenglieder des Anfahrstranges (1) eingreifen.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Korb (2) sich über ein Kreisviertel um das Kettenrad (3) erstreckt.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Hubrahmen (12) einen Motor (29) zum Antrieb der Kippbewegung um 180° des Korbes (2) trägt, wobei der Korb auf dem Hubrahmen (12) schwenkbar montiert ist, während die Gleitführungen (24) des Fahrrahmens (22) eine Auflage zur Drehung des Korbes (2) bilden.
5. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Korb (100) in der Form einer kreisförmigen Hülle (102) ausgeführt ist, die ein koaxiales Kettenrad (3) umgibt, dessen Zähne in die Kettenglieder des Anfahrstranges (1) durch die Innenwand (105, 106) der genannten Hülle eingreifen.
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Hülle (102) sich über einen Kreisbogen von 270° erstreckt und geradlinige, zueinander senkrechte Endteile aufweist, wobei der eine horizontal (107) und der andere vertikal (108) ist.
7. Vorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass zwei aufeinanderfolgende Zähne der Verzahnung des Kettenrads (3) durch einen grossen Abstand (7) getrennt sind, wobei die Lage dieser Zähne gegenüber dem ersten Zahn, mit dem der Anfahrstrang (1) bei dessen Einführung in den Korb (2 bzw. 100) in Berührung kommt, sowie die Grösse dieses Abstandes so berechnet sind, dass der Kopf des Anfahrstranges (1) in das Kettenrad (3) eingreifen kann.
8. Vorrichtung nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass die Drehbewegung des Kettenrads (3) durch einen mit dem Korb (2 bzw. 100) verbundenen Motor (5) über eine Kupplung (9) angetrieben ist.
9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Korb (2 bzw. 100) auf dem Hubrahmen (12) montiert ist, so dass er seitlich gleiten kann.
EP79400350A 1978-06-14 1979-06-01 Vorrichtung zum Einführen eines Anfahrstranges bei einer Stranggiesseinrichtung Expired EP0006781B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7817725A FR2428486A1 (fr) 1978-06-14 1978-06-14 Dispositif de mise en place d'un faux lingot en vue de la preparation d'une nouvelle coulee, dans une installation de coulee continue
FR7817725 1978-06-14

Publications (2)

Publication Number Publication Date
EP0006781A1 EP0006781A1 (de) 1980-01-09
EP0006781B1 true EP0006781B1 (de) 1982-05-12

Family

ID=9209475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400350A Expired EP0006781B1 (de) 1978-06-14 1979-06-01 Vorrichtung zum Einführen eines Anfahrstranges bei einer Stranggiesseinrichtung

Country Status (6)

Country Link
US (1) US4382462A (de)
EP (1) EP0006781B1 (de)
JP (1) JPS551991A (de)
AT (1) ATE994T1 (de)
DE (1) DE2962789D1 (de)
FR (1) FR2428486A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6047657B2 (ja) * 2013-06-20 2016-12-21 スチールプランテック株式会社 連続鋳造機及びその使用方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661199A (en) * 1969-10-21 1972-05-09 Schloemann Ag Dummy bar storage apparatus
BE758744A (fr) * 1969-11-28 1971-04-16 Fives Lille Cail Procede de mise en place du faux lingot pour la preparation d'une nouvelle coulee dans une installation de coulee continue et installation pour la mise en oeuvre de ce procede (
DE1961443A1 (de) * 1969-12-08 1971-06-24 Demag Ag Verfahren und Einrichtung zum Einbringen des Startstranges in einer Metall-,insbesondere Stahl-Stranggiessanlage
JPS511766Y2 (de) * 1971-06-16 1976-01-20
CH537223A (de) * 1971-08-06 1973-05-31 Concast Ag Vorrichtung für die Zuführung eines kurzen Anfahrstranges aus der Strangbahn in den Kokillenbereich
JPS5117942A (ja) * 1974-04-30 1976-02-13 Tokyo Shibaura Electric Co Kannetsuseijukizairyo
AT343835B (de) * 1976-03-23 1978-06-26 Voest Ag Einrichtung zum einbringen eines mit einem anfahrkopf versehenen flexiblen anfahrstranges in eine stranggiessanlage

Also Published As

Publication number Publication date
US4382462A (en) 1983-05-10
DE2962789D1 (en) 1982-07-01
JPS551991A (en) 1980-01-09
EP0006781A1 (de) 1980-01-09
FR2428486A1 (fr) 1980-01-11
ATE994T1 (de) 1982-05-15
FR2428486B1 (de) 1982-07-09
JPS6322906B2 (de) 1988-05-13

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