US3257691A - Apparatus for deflecting and guiding a descending slab - Google Patents

Apparatus for deflecting and guiding a descending slab Download PDF

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Publication number
US3257691A
US3257691A US260470A US26047063A US3257691A US 3257691 A US3257691 A US 3257691A US 260470 A US260470 A US 260470A US 26047063 A US26047063 A US 26047063A US 3257691 A US3257691 A US 3257691A
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United States
Prior art keywords
roll
path
slab
frame
car
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
US260470A
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English (en)
Inventor
Glenn N Krueger
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United States Steel Corp
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United States Steel Corp
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
Priority to BE644303D priority Critical patent/BE644303A/xx
Application filed by United States Steel Corp filed Critical United States Steel Corp
Priority to US260470A priority patent/US3257691A/en
Priority to GB5536/64A priority patent/GB1024939A/en
Priority to DE19641458234 priority patent/DE1458234A1/de
Priority to FR964632A priority patent/FR1387504A/fr
Priority to ES0296804A priority patent/ES296804A1/es
Priority to NL6401778A priority patent/NL6401778A/xx
Application granted granted Critical
Publication of US3257691A publication Critical patent/US3257691A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • This invention relates generally to continuous casting and, more particularly, to apparatus for progressively deflecting a continuously cast slab or the like from its normal straight form and vertical path of descent to a curved condition whereby it will conform to the arc of a curved roller table effective finally to deliver the slab horizontally.
  • I provide a curved roller table extending from a point below the usual pinch rolls employed to control the descent of the casting and on one side of the vertical path the casting would traverse if not deflected.
  • I mount a pusher roll on a car on the other side of said path, and movable toward and from it.
  • Two back-up rolls are disposed above the entry end of the table, one above and one below the pusher roll, to cooperate therewith in effecting a progressive bend.
  • a fulcrum roll between the pinch rolls and the pusher and back-up bending rolls, serves in cooperation with the latter to initiate a gradual deflection of the slab leading into a progressive deformation on a smooth curve.
  • a hold-down roll is located a short distance downwardly along the table effective to keep the bent slab in contact therewith.
  • FIGURE 1 is a side elevation showing the upper end of the curved roller table and the locations of the remaining apparatus elements relative thereto;
  • FIGURE 2 is an enlarged vertical section taken along the plane of line II-II of FIGURE 1 with parts broken away for greater detail;
  • FIGURE 3. is a plan view of the back-up rolls, their supports and their adjusting means
  • FIGURE 4 is a side elevation of the back-up rolls shown in FIGURE 3;
  • FIGURE 5 is a front elevation of the guide panel and the frame in which it reciprocates
  • FIGURE 6 is a vertical section taken of line VI-VI of FIGURE 5 along the plane 3,257,691 Patented June 28,1966
  • FIGURE 6a is a view similar to FIGURE 6 with the parts in alternate positions;
  • FIGURE 7 is a horizontal section taken along the plane of line VII-VII of FIGURE 5.
  • my invention is adapted to bend a continuously cast steel slab 10 descending from a mold between guide rollers and water sprays (not shown), under the control of pinch rolls indicated diagrammatically at 11.
  • a fulcrum roll 12 As the slab descends, it first engages a fulcrum roll 12. It next passes between a pusher roll 13 mounted in a car 14 and a pair of back-up rolls 15 and-16 mounted on a tilting frame 17. Finally the slab enters upon a curved roller table 18 having a guide panel 19 at the upper end and a hold-down roll 20 a short distance downwardly along the table.
  • spaced beams 21 supported by girders 22 of a structural frame have the upper flanges slotted for bolting thereto, in adjusted position, bearings 23 slidable thereon.
  • Bearings 23 support fulcrum roll 12 for movernent toward and from the path of slab 10.
  • a cooperating roll 25 is journaled in bearings 26. These bearings are carried on slides 27 movable in guide boxes 28 by screws 29. Roll 25 serves to prevent possible deflection of slab 10 away from roll 12.
  • Brackets 30 depending from a girder 22 support spaced beams 31 at one end. At their other end, the beams are carried by a girder (not shown) of the aforementioned structural frame.
  • Car 14 has wheels 32 by which it travels on rails 33 fixed on top of beams 31.
  • the car comprises a frame including outer and inner pairs of vertical posts 34 and 35 connected by upper transverse lengths of pipe 36 and lower lengths 37.
  • Trucks 38 secured to the upper ends of posts 34 mount stub shafts 39 on which wheels 32 are journaled.
  • the car is held on rails by shoes 40 mounted on the ends of lower pipe length 36 which slidingly engage runner bars 41 secured to the lower faces of the upper flanges of beams 31.
  • Drive shafts 42 extend from a speed reducer 43 through posts 35 and are journaled in bearings 44 secured to posts 34. Pinions 45 keyed to the outer ends of the shafts mesh with racks 46 secured to the bottom flanges of beams 31.
  • a motor 47 mounted on an intermediate cross member 48 of the car frame drives reducer 43 through built-in reduction gearing and a coupling 47a.
  • Longitudinal car-frame members 49 extend horizontally from the lower ends of posts 35 and are braced by 1 bridging diagonals 50 serves, if needed, initially to deflect the lower end of'a descending slab over roll 13 when starting up. Atsuch time car 14 will first be retracted to permit downward passage of the flexible starter bar (not shown) for severance and disposition, before the slab is initially bent. This bending is started by advancing the car after the free end of the slab has passed below the level of skid plate 52 or roll 13.
  • FIGURES 3 and 4 The back-up rolls 15 and 16 and the structure associated with them are more fully illustrated in FIGURES 3 and 4.
  • spaced beams 53 carried on suitable supports have ways 54 thereon.
  • Bearings 55 are gibbed to and slidable on the ways.
  • a structural frame 56 including spaced posts 57 and a connecting cross beam 58, has trunnions 59 journaled in bearings 55.
  • a rotation-limiting or stop plate 60 is keyed to each trunnion and has feet 69a and 60b on the lower side adapted alternatively to engage the base of bearing 55. Plate 60 also has a notch for cooperation with a manually operable latch 61 pivotally mounted on bearing 55.
  • Bearings 62 for rolls 15 and 16 are secured on the same side of posts 57 near their upper and lower ends, respectively.
  • a counterweight 63 is secured to the posts at their upper ends on the other side. The counterweight exerts a torque on frame 56 tending to turn it clockwise as far as permitted by stop plate 60. In this position, latch 61 engages the notch in plate 60 to prevent counterclockwise tilting of frame 56, and the latter may serve to exert a horizontal push on the slab when desired.
  • a jackscrew 64 is threaded through the wheel of a worm and worm-wheel gear in a box 65.
  • the box is mounted on a transverse beam 66.
  • One end of the screw has an eye pivotally connected to a clevis 58a on cross beam 58 of frame 56, coaxial with bearings 55 by a through bolt.
  • a worm-wheel gear is driven by a motor 68 through a reducer 69.
  • the motor and reducer are mounted on a base 70 carried by beam 67.
  • stop plate foot 60b or 60a In normal operation, neither foot 60a or 60b contacts the base of bearing 55. The only function of stop plate foot 60b is to limit the clockwise rotation when the roll 16 is removed or when the frame 56 is moved back from operating to vertical position.
  • a cam plate 71 at the lower end of each of the posts 57 engages a striker plate 72 mounted on beam 67 and restores the frame to vertical position whereupon latch 61 is engaged with plate 60. In such position, the assembly may be used as pusher if desired.
  • guide panel 19 has ears 73 projecting from its sides at its lower edge, which are slidable vertically in ways 74 fixed to vertical members 75 carried by brackets 7511 on the columns supporting the upper end of table 18.
  • a pneumatic cylinder 76 has one' end pivoted to a cross beam 77 extending between members 75 and its piston rod pivoted to a block 78 fixed to the back of panel 19 adjacent its upper edge.
  • a tiltable apron plate 80 is pivoted in bearings 81 fixed to members 75 and its upper edge has sliding engagement with the face of panel 19.
  • plate 80 When the panel is raised to the position shown in FIGURE 6, plate 80 is tilted up out of the way. In this position, the panel serves to guide upward movement of a flexible starter bar as it is pushed up into the mold.
  • the upper edge of plate 80 rides over the inclined upper portion 19a of the panel and the plate tilts downwardly to the position shown in FIGURES 1 and 6a. In that position, it serves to deflect the descending lower end of the slab out over the uppermost roller of table 18.
  • FIGURE 1 shows how the hold-down roll 20 is mounted.
  • Housings 8-2 upstanding on the side members of roller table 18 have bearings 83 slidable therein. Adjusting screws 84 threaded through the tops of the housings engage the bearings whereby they may be adjusted toward or from the path of the slab along the table.
  • Roll 20 is journaled in bearings 83 and may be thus positioned to overcome any tendency of the leading end of the slab to curl up and away from the table.
  • my invention provides means for bending a continuously cast slab, which have the necessary strength and rigidity yet are readily adjustable to meet various operating conditions and to accommodate slabs of different thicknesses.
  • the pusher roll 13 initiates a long-radius bend of the slab commencing at the fulcrum roll 12 and, with the cooperation of the back-up rolls 15 and 16, maintains the curvature initially established so that the slab follows smoothly down the curved roller table 18.
  • Roll 12 may be omitted and bending effected about the right-hand pinch roll as a fulcrum.
  • Apparatus for bending laterally from its normal substantially vertical path of descent, a continuous columnar casting comprising a horizontal fulcrum roll at one side of said path, a car below said roll on the other side of said path adapted to travel toward and from the latter, a pusher roll journaled at the end of said car nearer said path to engage the casting and initiate a bend therein about said fulcrum roll, an upstanding frame tiltably mounted on the opposite side of said path from said pusher roll, and horizontal back-up rolls journaled in said frame at vertically spaced locations.
  • bearings in which said frame is journaled and means mounting said bearings for adjustment in a substantially horizontal direction.
  • Apparatus as defined in claim 1 characterized by cam means on said frame and a fixed striker plate engageable thereby, effective to tilt said frame on horizontal adjustment of said bearings in one direction.
  • Apparatus as defined in claim 1 characterized by means limiting tilting of said frame in both directions.
  • a curved roller table including a plurality of rollers for guiding a descending slab in a curved path, a vertically slid-able guide panel mounted at the upper end of said table, and means for raising said panel from a lower out-of-the-way position to an upper position in which it affords a skid surface lying generally in a plane tangent to the two nearest rollers of said table.
  • Apparatus for bending laterially from its normal substantially veritcal path of descent a continuous columnar casting, comprising a horizontal fulcrum roll at one side of said path, a car below said roll on the other side of said path adapted to travel toward and from the latter, a pusher roll journaled at the end of said car nearer said path adapted to engage the casting and initiate a bend therein about said fulcrum roll, and a skid plate mounted on said car above said pusher roll and sloping downwardly and out over said pusher roll.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Continuous Casting (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US260470A 1963-02-25 1963-02-25 Apparatus for deflecting and guiding a descending slab Expired - Lifetime US3257691A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE644303D BE644303A (en(2012)) 1963-02-25
US260470A US3257691A (en) 1963-02-25 1963-02-25 Apparatus for deflecting and guiding a descending slab
GB5536/64A GB1024939A (en) 1963-02-25 1964-02-10 Apparatus for deflecting and guiding a descending continuously cast slab or the like
DE19641458234 DE1458234A1 (de) 1963-02-25 1964-02-20 Einrichtung zum Umbiegen eines Giessstranges
FR964632A FR1387504A (fr) 1963-02-25 1964-02-21 Appareil pour dévier et guider une brame ou élément équivalent animé d'un mouvement descendant
ES0296804A ES296804A1 (es) 1963-02-25 1964-02-24 Aparato para la fundiciën continua de hierro o material similar
NL6401778A NL6401778A (en(2012)) 1963-02-25 1964-02-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US260470A US3257691A (en) 1963-02-25 1963-02-25 Apparatus for deflecting and guiding a descending slab

Publications (1)

Publication Number Publication Date
US3257691A true US3257691A (en) 1966-06-28

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US260470A Expired - Lifetime US3257691A (en) 1963-02-25 1963-02-25 Apparatus for deflecting and guiding a descending slab

Country Status (7)

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US (1) US3257691A (en(2012))
BE (1) BE644303A (en(2012))
DE (1) DE1458234A1 (en(2012))
ES (1) ES296804A1 (en(2012))
FR (1) FR1387504A (en(2012))
GB (1) GB1024939A (en(2012))
NL (1) NL6401778A (en(2012))

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314115A (en) * 1964-01-17 1967-04-18 Concast Ag Continuous casting machine
US3344841A (en) * 1965-06-18 1967-10-03 Koppers Co Inc Control apparatus for a continuous cast billet
US3707184A (en) * 1969-05-20 1972-12-26 Concast Ag Withdrawal and straightening apparatus for continuous casting
US3730256A (en) * 1969-06-30 1973-05-01 Koppers Co Inc Apparatus for bending continuous cast slabs
US3735804A (en) * 1971-02-25 1973-05-29 Steel Corp Adjustable conducting roll apparatus
US3752219A (en) * 1969-05-13 1973-08-14 Concast Ag Strand guide apparatus for continuous casting
US3794107A (en) * 1971-07-17 1974-02-26 Schloemann Ag Plural segmented guiding assembly for a continuous casting
US3938580A (en) * 1973-06-28 1976-02-17 Enrico Donini Continuous metal casting plant with controlled band-tensioning

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006018748A1 (de) * 2006-04-22 2007-10-25 Sms Demag Ag Biegetreiber und Verfahren zum Abbiegen eines Stranges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264289A (en) * 1939-08-22 1941-12-02 American Smelting Refining Process and apparatus for casting metal
US2501768A (en) * 1948-04-10 1950-03-28 Whiting Corp Cupola charging apparatus
US2920359A (en) * 1957-12-26 1960-01-12 Koppers Co Inc Flexible segmental starting bar continuous casting machine
FR1264943A (fr) * 1960-08-11 1961-06-23 Concast Ag Dispositif pour l'amenée du jet d'obturation dans les installations de coulée continue
GB900734A (en) * 1959-09-01 1962-07-11 Concast Ag Improvements in arrangements for feeding in the starting bar in vertical continuous casting plants

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264289A (en) * 1939-08-22 1941-12-02 American Smelting Refining Process and apparatus for casting metal
US2501768A (en) * 1948-04-10 1950-03-28 Whiting Corp Cupola charging apparatus
US2920359A (en) * 1957-12-26 1960-01-12 Koppers Co Inc Flexible segmental starting bar continuous casting machine
GB900734A (en) * 1959-09-01 1962-07-11 Concast Ag Improvements in arrangements for feeding in the starting bar in vertical continuous casting plants
FR1264943A (fr) * 1960-08-11 1961-06-23 Concast Ag Dispositif pour l'amenée du jet d'obturation dans les installations de coulée continue

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314115A (en) * 1964-01-17 1967-04-18 Concast Ag Continuous casting machine
US3344841A (en) * 1965-06-18 1967-10-03 Koppers Co Inc Control apparatus for a continuous cast billet
US3752219A (en) * 1969-05-13 1973-08-14 Concast Ag Strand guide apparatus for continuous casting
US3707184A (en) * 1969-05-20 1972-12-26 Concast Ag Withdrawal and straightening apparatus for continuous casting
US3730256A (en) * 1969-06-30 1973-05-01 Koppers Co Inc Apparatus for bending continuous cast slabs
US3735804A (en) * 1971-02-25 1973-05-29 Steel Corp Adjustable conducting roll apparatus
US3794107A (en) * 1971-07-17 1974-02-26 Schloemann Ag Plural segmented guiding assembly for a continuous casting
US3938580A (en) * 1973-06-28 1976-02-17 Enrico Donini Continuous metal casting plant with controlled band-tensioning

Also Published As

Publication number Publication date
BE644303A (en(2012))
ES296804A1 (es) 1964-07-16
FR1387504A (fr) 1965-01-29
GB1024939A (en) 1966-04-06
NL6401778A (en(2012)) 1964-08-26
DE1458234A1 (de) 1970-01-08

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