US3848658A - Carriage orientation and lift system for a twin belt continuous metal casting machine - Google Patents

Carriage orientation and lift system for a twin belt continuous metal casting machine Download PDF

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Publication number
US3848658A
US3848658A US00342096A US34209673A US3848658A US 3848658 A US3848658 A US 3848658A US 00342096 A US00342096 A US 00342096A US 34209673 A US34209673 A US 34209673A US 3848658 A US3848658 A US 3848658A
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United States
Prior art keywords
carriage
lift
pivot
belt
lift arm
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Expired - Lifetime
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US00342096A
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English (en)
Inventor
R Hazelett
J Wood
R Carmichael
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Hazelett Strip Casting Corp
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Hazelett Strip Casting Corp
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Filing date
Publication date
Application filed by Hazelett Strip Casting Corp filed Critical Hazelett Strip Casting Corp
Priority to US00342096A priority Critical patent/US3848658A/en
Priority to AU66591/74A priority patent/AU486467B2/en
Priority to SE7403459A priority patent/SE397643B/xx
Priority to DE2412240A priority patent/DE2412240C2/de
Priority to FR7408856A priority patent/FR2221205B1/fr
Priority to CH366374A priority patent/CH594459A5/xx
Priority to CA195,117A priority patent/CA1004825A/en
Priority to BE142102A priority patent/BE812412A/fr
Priority to JP49030511A priority patent/JPS5857258B2/ja
Priority to GB1199774A priority patent/GB1466178A/en
Priority to IT20820/74A priority patent/IT1007488B/it
Application granted granted Critical
Publication of US3848658A publication Critical patent/US3848658A/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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0677—Accessories therefor for guiding, supporting or tensioning the casting belts

Definitions

  • ABSTRACT A carriage orientation and lift system are described for a continuous metal casting machine of the twinbelt type in which a virtual parallelogram lift mechanism raises or lowers the upper carriage while maintaining it parallel with the lower carriage.
  • This lift system pe SYSTEM FOR A TWIN BELT CONTINUOUS m s .m m mm tn 2 M Emm at mm Am wmm G mw r n l nrfl Twhm flRhB mm m m EV M .m 3 7 Colchester, all of Vt.
  • a downstream shift assembl yat this pivot connection enables the upper carriage to be shifted upstream or downstream for injection or open 64/278 lf d f h 1 l' h h" l64/278 poo ee mgo t emo ten meta input tot emac me,
  • the present invention relates to a carriage orientation and lift system for a twin-belt continuous metal casting machine.
  • a twin-belt casting machine uses a pair of thin, wide endless metal belts to define the upper and lower casting surfaces of the casting region.
  • twin-belt continuous metal casting machines for example, as shown in US. Pat. Nos. 2,640,235; 2,904,860; 3,036,348; 3,041,686; 3,123,874; 3,142,873; 3,167,830; 3,228,072; and 3,310,849.
  • the operating requirements for these twin-belt casting machines have become progressively more demanding because it is desired that larger and larger cast sections be produced with great accuracy.
  • much larger amounts of molten metal are now desired to'be fed into the machine per minute of operation.
  • a virtual parallelogram lift system that raises the upper carriage is provided to accomplish the desired separation of the carriages, and also it permits rigidly attaching the lower carriage to the main chassis frame without complication or conflict with other functions.
  • a follower roller engages against an upright, curved cylindrical segment on the back of the machine and the radius of curvature of this curved segment plus the radius of the follower roller is equal to the length of the lift arm between the fulcrum and the pivot connection to the upper carriage.
  • the illustrated embodiment is designed to provide a casting mold space C which may be as wide as up to 100 inches and may be as long as up to 1 16 inches or more, with the belts being somewhat larger than these dimensions.
  • Substantial vertical lift of the upper carriage also facilitates the changing of casting belts, edge dams, tundish, nosepiece and nozzle assemblies on various sizes of casting machines in installations where down time vide vertical support for the upper carriage, and control the distance between the two carriages.
  • the lift system embodying this invention is that the upper carriage and corresponding casting surface remain parallel with the lower carriage while being raised or lowered. This facilitates the changing of selected casting thickness together with corresponding edge dams and gauge spacers. Maintaining the upper carriage parallel to the lower carriage during operation of the lift function also allows the upper carriage to be used to position tundish, nosepiece or core assemblies. Desirably, a lift system embodying the present invention that maintains the constant parallel position of the upper carriage can be used as well to actuate the head latch and raise the leveler or other auxiliary assemblies when the lift system is operated.
  • the area above the upper carriage is desirably open sothat auxiliary equipment such as belt drying or coating apparatus can be mounted there.
  • a meansfor shifting the upper carriage in the direction of travel of casting is provided.
  • For open pool feeding the upper carriage is shifted downstream a substantial distance.
  • This shift A function is independent of all other machine operations.
  • the virtual parallelogram lift system facilitates this downstream shifting by eliminating pivots which might otherwise require shifting.
  • the curved segment against which the follower roller rests is much wider than the roller thereby accommodating all downstream shifts of the upper carriage.
  • a positive safety link is provided to positively lock and hold the upper carriage in the raised position to present invention.
  • FIG. 1 is a perspective view of the input or upstream end of a continuous strip-casting machine embodying the present invention, as seen looking toward the machine from a position in front and beyond the outboard side of the two belt carriages;
  • FIG. 2 is an elevational view of the machine as seen looking toward the outboard sides of the two belt carriages;
  • FIG. 3 is an elevational view of the machine as seen looking toward the back of the support frame at the inboard side of the machine;
  • FIG. 4 is an elevational view looking toward the input or upstream end of the continuous casting machine
  • FIG. 5 is a cross-sectional view, taken along the line 5--5 of FIG. 2, looking toward the right;
  • FIG. 6 is a schematic diagram illustrating the virtual parallelogram linkage provided by the lift system in the machine of the present invention.
  • FIG. 7 is a perspective view of the upper carriage shift system
  • FIG. 8 is an enlarged sectional view of the roller and mount, being taken along line 8-8 of FIG. 4;
  • FIG. 9 is an enlarged sectional view of the lift arm bearing and mounting assembly, being taken along line 9-9 in FIG. 4.
  • molten metal is fed into the upstream end or input of the machine between upper and lower endless, flexible casting belts l2 and 14.
  • the molten metal is solidified in a casting region C (FIGS. 2 and 5) defined by the spaced parallel surfaces of the upper and lower casting belts l2 and 14.
  • the two casting belts 12 and 14 are supported and driven by means of upper and lower belt carriages which are indicated in FIGS. 1, 2 and 4 at U and L, respectively.
  • the upper carriage includes two main rolls 16 and 18 (FIG. 2) around which the casting belt 12 is revolved as indicated by the arrows.
  • the roll 16 near the input end of the machine is referred to as the upstream roll and the other roll 18 is called the downstream roll.
  • the lower carriage L includes main upstream and downstream rolls 20 and 22 around which the lower casting belt 14 is revolved.
  • the lower carriage L projects from a chassis 24 (FIGS. 2 and 4) which is adapted to be tilted to various casting angles.
  • a chassis 24 (FIGS. 2 and 4) which is adapted to be tilted to various casting angles.
  • this chassis 24 is attached to the base 26 of the machine by a three-point support system that includes two pivot connections and an adjusting link 27.
  • the two pivot connections 28 and 30 are located toward the downstream end of the machine, and the adjusting link 27 is near the upstream end.
  • This link is secured by pivots 31 and 32 and can be removed and replaced by a longer link when it is desired to increase the inclination, and vice versa.
  • This support B is generally U-shaped in plan, with the two base beams 34 and 36 extending in an outboard direction beneath the lower carriage L.
  • the chassis frame 24 is attached to the base 26 by the pivot system discussed above that allows the carriages U and L to be tilted to any casting angle and still remain in alignment with the base 26.
  • This chassis frame 24 forms the main chassis of the machine proper as distinguished from the support unit B at the base.
  • a rigid upstanding box frame back 38 is securely bolted to the upper surface of the chassis 24.
  • This box frame back 38 provides the upright back of the machine, and at its upper end there are two upstanding lift arm support members 41 and 43 which support a lift arm 40 at its fulcrum point 42 (FIG. 5) by means of pivot pin assemblies.
  • this box frame back 38 includes vertical front and back plates 44 and 45 with horizontal stiffeners 46 between them and a pair of vertical end plates 47 and 48 (FIGS. 2 and 3) to which the upstanding lift arm support members 41 and 43 are secured.
  • the lift arm 40 is swung up and down by the action of the two fluid power cylinders 50 and 51 whose piston rods 52 are pivotally attached at 53 to brackets 54 secured to the rear plate 45 of the box frame back 38.
  • the cylinders 50 and 51 have trunnions 55 pivotally mounted in the rearwardly extending end members 56 of the lift arm 40.
  • the upper carriage U is pivotally attached to the front end of the lift arm 40 by the downstream shift assembly 61, which is located at the outboard end of the lift arm 40.
  • This lift arm is strongly built to have a thicker section near the fulcrum pivot 42 tapering toward its ends, and it includes a top plate 57 secured to bottom plates 58 and 59 by vertical webs between them, as seen in FIG. 5.
  • a virtual parallelogram lift system 60 has been devised as shown most clearly in FIGS. 5 and 6.
  • the box frame back 38 of the machine forms one link 1 of the parallelogram pivoted at 42 to a central portion of the lift arm 40, and the front portion of this lift arm forms a second link 2.
  • the upper carriage U includes an inboard vertical frame structure 62 which depends from the pivot shift assembly 61, and then as shown generally at 63 in FIG. 6 the belt supporting portion is cantilevered from the upright portion 62.
  • the upper carriage has an L-shape or dog-leg shape.
  • the third link 3 is formed by the upright dog-leg portion 62 of the upper carriage on which bracket members 66, 67 (FIG. 8) and roller 65 are mounted.
  • the fourth link 4 is a virtual one as indicated dashed in FIG. 6 with the other two pivots X and Y being virtual pivots. These are called virtual pivots because there is no actual pivot connection between a pair of links at the pivot points X and Y.
  • This virtual fourth link and pivots X and Y are provided by a convex circularly curved cylindrical segment 64 bolted to the front plate of the upright box frame back 38 and a follower roller 65 attached by mounting bracket members 66 and 67 (FIG. 8) to the inboard side plate 68 of the vertical frame structure 62 of the upper carriage.
  • the roller 65 is mounted on the upper carriage U near the elbow of its L-shaped frame structure formed by the upright frame portion 62 and cantilevered belt supporting portion 63.
  • the radius of the convex curved cylindrical segment 64 plus the radius of the roller 65 are equal to the distance between the axes of the pivots 42 and 61 in the front portion of the lift arm, i.e., equal to the length of the upper link 2.
  • the axis, i.e. center of curvature, of the cylindrical segment 64 is located at the virtual pivot X and extends parallel with the axis of the pivot assembly 61 and also parallel with the axis of the fulcrum pivot 42 which is also parallel to the pivot assembly 61.
  • the distance from the axis X to the axis of the pivot 42 (which is the length of the link 1) is equal to the distance between the axis Y of the roller 65 and the axis of the pivot 61 (which is the length of the link 3).
  • the upper carriage U has an L- shaped cantilevered structure 63 carried by the upright dog-leg portion 62, and the weight of this upper carriage when lifted is supportedby the pivot assembly connection 61 with the lift arm 40 and whose orientation about this pivot 61 is controlled by the action of the roller 65 and cylindrical segment 64.
  • the center line (axis) of its pivot 61 with the lift arm 40 travels in a circular path V about the axis of the lift arm fulcrum pivot 42.
  • the center line of the foller 65 is arranged to travel in an identical arc W, and this is accomplished by making the radius of the cylindrical segment 64 plus the radius of the roller 65 equal to the length of the link 2.
  • the roller 65 is under a compressive load and follows the precisely curved machined surface of the segment 64, thus producing the desired parallelogram motion. It is the side portion of the arc W which is used which enables a large amount of vertical movement to be obtained with little horizontal displacement of the upper carriage U.
  • a tangent plane 70 shown dash and dotted to the curved cylindrical segment 64 near the center of the operating range extends vertically.
  • a horizontal locator bar '72 (FIG. 4) which extends across beneath the bottom end of the curved segment 64, i.e. serving as a ledger.
  • Cap screws (not shown) retain the ledger bar 72 in position on the front surface of the upright box frame back 38.
  • This bar 72 also facilitates the positioning of plate 73 behind the segment 64 both of which are securely fastened to the box frame'38 by cap screws.
  • This spacer plate 73 is mounted between the segment 64 and the box frame back 38 and can be machined to correct any minor misalignment, thus assuring proper contact at all operating positions between the segment 64 and the roller 65.
  • the curved segment is wide enough so that there is full contact with the roller for all downstream shift positions of the upper carriage U, even including the maximum amount of downstream shift of this upper carriage.
  • the hardness of the curved surface of the segment 64 is somewhat less than that of the roller 65 to produce ideal operating conditions at the point of contact. Also, this relative hardness accommodates manufacturing tolerances and adjustments in orientation of the upper carriage.
  • the roller 65 (FIG. 8) is the outer portion of an anti friction bearing whose inner race 74 is retained between bracket members 66 and 67 by retainers 75 which are compressed between a shoulder 76 on one end of the bearing pin 77 and a bushing 78, a lock washer 79 and lock nut 80 screwed on the opposite end of the pin 77.
  • the bearing for roller 65 includes antifriction elements 81 and is sealed against the ingress of liquid coolant and foreign material on both sides by 0 rings 82 which ride in a groove in the periphery of each retainer 75 and run against the inside surface of the outer race of the bearing which forms the roller 65.
  • This bearing 65, 81, 74 can be lubricated through a passage 82 bored in the retaining pin 77.
  • a key 84 (FIG. 5) is used to accurately locate the bracket members 66 and 67 on the inboard side plate 68 of the top carriage.
  • the bracket members 66 and 67 are securely fastened to the side plate with cap screws.
  • This roller means is used to withstand the high operating loads and adverse operating conditions of liquid coolant, heat and fumes encountered during metal casting. In some cases, particularly for a long machine, more than one roller 65 may be utilized in axial alignment with each other engaging the curved surface 64.
  • the force required to raise the top carriage U is produced by the action of the two fluid power cylinders 50 and 51. As fluid pressure is applied to the rod end of these cylinders, the piston rods 52 are retracted causing a downward force F (FIG. 6) on the rear members 56 of the lift arm 40, thereby swinging the front portion of the lift arm 40 up'about its fulcrum'pivot 42 thus raising the upper carriage U.
  • F downward force
  • fluid powered lift cylinders 50 and 51 such as hydraulically activated lift cylinders
  • the lift means to exert a downward force on the rear portion of the lift arm 40 by acting between the pivots 53 and 55 (FIGS. 4 and 5)
  • other lift means can be used.
  • screw jacks can be employed effectively acting between the pivots 53 and 55 with these screw jacks being actuated by electric or hydraulic motors or manually actuatable.
  • the lift arm is supported on each side by a fulcrum pivot pin 42 (FIG. 9) about which rotates a bushing 86.
  • This bushing is retained in the box frame back 38 of the machine by a thrust washer 87 and cap 88.
  • An advantage of this rearwardly extending level type lift system 60 is that it can be mounted on the upper portion of the rigid box frame back 38 with the lift arm extending over the top of the box frame back 38.
  • the top positioned lift arm 40 does not limit the space required for other functions, and the location of the lift means and 51 behind the box frame back 38 enable the lift arm and lift means to withstand adverse operating conditions.
  • This lift system allows the lift means 50 and 51 to be mounted on the back of the machine thus providing more space in the working area and a better environment for the lift cylinders because they are more remote from the molten metal in the casting region C and are remote from the liquid coolant being applied to the reverse surfaces of the belts along the casting region.
  • the lift arm arrangement as shown in FIG. 5 in which the line of action of the lift means 50 and 51; that is, the line passing through the axes of the pivot points 55 and 53 is approximately perpendicular to the line passing through the pivot points 42 and 53 provides a relatively constant mechanical advantage for the lift cylinders throughout the range of lift operation.
  • This relatively constant mechanical advantage results in substantially constant hydraulic pressure requirements throughout the range of lift. Due to the very limited degree of associated frictional forces, the operation of the lift system is smooth and readily controllable during all phases of the lift cycle. Also, the space above the upper carriage is free of obstruction and can be used to accommodate other mechanism such as the belt treatment unit 85.
  • the pivot pin assembly shown in FIG. 9 can be used to adjust the orientation of the lift arm, so that the direction of travel of the top and bottom casting belts is exactly parallel. This is accomplished by the rotation of the bushings 86 which are eccentric in structure. Each cap 88 axially retains the thrust washer 87, bushing 86 and lift arm 40 in position on top of the box frame back 38. The cap 88 is fastened to the vertical members 41 and 43 of the box frame back by cap screws 92 and a lock bolt prevents rotation of the eccentric bushing 86. This eccentric bushing can be rotated in either direction by increments of five degrees, thus providing both horizontal and vertical adjustment of the upper carriage at both its upstream and downstream ends.
  • each thrust washer 87 accommodates this adjustable orientation of the upper carriage in any direction at both the upstream and downstream fulcrum pivots 42.
  • the upper carriage is adjusted to cause its belt to track exactly parallel with the lower belt along the top and bottom of the casting region C; so that the lateral creeping movement of the belts with respect to the cast product is avoided.
  • This true tracking of the belts reduces abrasion on the coated casting surfaces of the belts 12 and 14 and avoids flaws in the surface finish of the cast section.
  • the fulcrum pivot pins 42 and eccentric bushings 86 can be lubricated through the port 91 provided in their respective caps 88 and thrust washers 87. If desired, either or both of the eccentric bushings 86 can conveniently be removed and replaced by one having greater or lesser eccentricity if needed to make a more precise alignment adjustment shown between the upper and lower carriages.
  • the top carriage U is pivoted on the front portion of the lift arm 40 by the downstream shift assembly 61 and can be moved a maximum of twelve inches independently of all other functions of the casting machine 10. This movement is desirable to allow molten metal to be distributed into the casting region C by either the open pool or injection method.
  • the main component of the downstream shift assembly 61 is a tube 94 that slides in three bushings 95 that are retained respectively in three spaced hanger members 93 on the front portion of the lift arm 40 by means of snap rings 96.
  • the vertical arm structure 62 of the upper carriage U includes a pair of spaced end plate support members 97 that are rigidly attached to this tube 94 by two rings 98 and a split ring 99.
  • the upstream support member 97 is positioned intermediate the first and second hanger members 93, while the downstream support member 97 is positioned intermediate the second and third hanger members 93 Accord ingly, rigid support is provided for the upper carriage regardless of whether it is shifted upstream, downstream or in-between.
  • the lift system 60 is provided with a positive safety link 116 (FIG. 5) that will retain the upper carriage in the fully raised position.
  • This safety link 116 is manually operable, can be locked in either extended or retracted position, and can be used for all downstream shift positions of the top carriage. While in use, holding up the carriage U, the safety link 116 is in extended position under a compressive load, between a ledge 117 on the top carriage and the pivot 118 of the link 116. In addition, as a back up to the pivot 118, there is a load-carrying ledge 120 at the front of the box frame back 38.
  • the bottom end of the pivoted safety link rests on the safety ledge 120 when the link is swung out to its extended position, so as to catch under the carriage ledge 117.
  • the safety link 116 is located so that it does not interfere with the changing of the casting belts, or any other required maintenance work.
  • edge dams 121 and 122 which serve to define the edges of the casting region C.
  • These edge dams are flexible and revolve around the lower carriage, as seen in FIG. 2. They can be removed and replaced by thicker or thinner ones depending upon the section of metal being cast.
  • These edge dams 121 and 122 and also the casting belts 12 and 14 can be changed when the upper carriage is raised as indicated by the dashed and dotted outline in FIG. 5. Also, inspection and servicing of the machine can be conveniently performed when the upper carriage is raised. It is at these times that the safety link 116 is extended to make sure that the upper carriage does not inadvertently come down.
  • the lift system 60 shown is designed to provide inches of lift for the upper carriage U.
  • the back downstream carriage pivot (FIG. 3) has an associated hold-down clamp including a curved saddle 124 extending over the pivot pin 30 with a clamp bolt 126 and a nut 127.
  • This clamp bolt extends down through an anchoring bracket 129 on the main chassis frame 24 and through the saddle 124 and pivot 30 for securely locking the pivot 30 to remove all tolerance in the pivot.
  • the main chassis frame is pre-loaded (as seen in FIG. 3) down against the base at the downstream back pivot point to prevent any slight movement there.
  • pivot brackets 54 for the lift cylinder piston rods are located on the back frame 38 by keys 128 (FIGS. 4 and 5) in a keyway 130 (FIG. 3) to assure precise alignment.
  • the belt drive mechanism 132 is mounted upon a platform 134 which is cantilevered from the back of the main chassis 24. Thus, this drive mechanism is positioned in a more favorable environmental position than if it were closer to the casting region. Also, the cantilevered platform 134 and drive 132 somewhat counterbalance the lower carriage L which is rigidly cantilevered from the front of the main chassis 24 with the upper carriage U above it.
  • a belt treatment unit 85 (FIGS. 1, 2 and 4) positioned in the readily accessible space above the upper carriage.
  • This belt treatment unit extends across the width of the upper casting belt 12 as seen in FIG. 4 and is used to perform such belt treatments as leveling or coating.
  • a pivoted latch 136 In its operating position as seen in FIG. 4 a pivoted latch 136 has a hook 137 engaged in a recess on the frame of the upper carriage.
  • a spring 138 urges the latch into its engaged position about the latch pivot 139.
  • a tension member 140 for example, such as a rod or cable, pivotally connected at 141 to the upper end of the latch and at 142 to the front portion of the lift arm above the level of the pivot 61.
  • the main chassis frame 24 can be rigidly attached to the U- shaped base unit B.
  • a three point support for the machine as a whole is then provided by using three foot pads. Two of these foot pads are then located beneath the outboard ends of the respective base beams 34 and 36, i.e. beneath the two arms of the U-shaped base. The third foot pad is then located beneath the center of the 'back of the base frame 26.
  • a carriage orientation and lift system for a twinbelt continuous metal casting machine comprising:
  • a machine frame including a chassis with a back frame extending upwardly therefrom,
  • a lift arm pivotally attached to said back frame by said fulcrum pivot, said lift arm having a rear portion extending behind said back frame and a front portion extendingin front of said back frame,
  • lift means connected to the rear portion of said lift arm and to the frame for pulling downwardly on the rear portion of said lift arm to swing up the front portion thereof
  • an upper carriage connected by a pivot assembly to the front portion of said lift arm, said upper carriage being positioned above said lower carriage and being adapted to have an upper casting belt revolved around it in parallel relationship with said lower belt,
  • roller means mounted on said upper carriage at a lower level than said pivot assembly in rolling engagement with said curved cylindrical segment
  • the axis of said curved cylindrical segment being parallel with the axis-of said pivot assembly and also parallel with the axis of said fulcrum pivot,
  • the effective radius of curvature of said curved cylindrical segment plus the radius of said roller means being equal to the distance between the axis of said fulcrum pivot and the axis of said pivot assembly
  • a carriage orientation and lift system for a twinbelt continuous metal casting machine as claimed in claim 1 including a base support unit having a pair of spaced parallel beams extending outboard beneath the lower carriage and a base frame extending between said beams and positioned beneath said main chassis frame, said main chassis frame being pivotally connected to said base frame at the downstream end of said machine by a front and rear pivot which are axially aligned, and means for adjusting the elevation of the upstream end of said main chassis frame.
  • a carriage orientation and lift system for a twinbelt continuous metal casting machine as claimed in claim 1 in which an upwardly extending safety link is pivotally connected to the front of the upstanding back frame, said safety link being swingable forward into an extended position, said upper carriage has a ledge on its inboard side under which the extended safety link can be engaged when said carriage is in its raised position, and said ledge extending upstream and downstream a sufficient distance to be engageable by the extended safety link regardless of whether the upper carriage is in its upstream or downstream position.
  • a carriage orientation and lift system for a twinbelt continuous metal casting machine as claimed in claim 1 including a base support unit having a pair of spaced parallel beams extending outboard beneath the lower carriage and a base frame extending between said beams and positioned beneath said main chassis frame, each of said beams having a foot pad beneath its outboard end engageable with the ground, and said base frame having a third foot pad located beneath it intermediate said beams and engageable with the ground, whereby the machine as a whole has a three point support.
  • a carriage orientation and lift system for a twinbelt continuous metal casting machine comprising:
  • a machine frame including a chassis with a back frame extending upwardly therefrom,
  • fulcrum pivot means mounted on said back frame above the level of said lower carriage
  • a lift arm pivotally attached to said back frame by said fulcrum pivot means, said lift arm having a rear portion extending behind said back frame and a front portion extending in front of said back frame,
  • lift means connected to the rear portion of said lift arm and to the frame for pulling downwardly on the rear portion of said lift arm to swing up the front portion thereof
  • an upper carriage connected by a pivot assembly to the front portion of said lift arm, said upper carriage being positioned above said lower carriage and being adapted to have an upper casting belt revolved around it in parallel relationship with said lower belt,
  • roller means mounted on said upper carriage at a lower level than said pivot assembly in rolling engagement with said cylindrical member
  • said fulcrum pivot means comprising two axially aligned spaced pivot mechanisms, at least one of said pivot mechanisms including adjustment means for slightly shifting the effective position of one of said pivot mechanisms relative to the other pivot mechanism,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US00342096A 1973-03-16 1973-03-16 Carriage orientation and lift system for a twin belt continuous metal casting machine Expired - Lifetime US3848658A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US00342096A US3848658A (en) 1973-03-16 1973-03-16 Carriage orientation and lift system for a twin belt continuous metal casting machine
SE7403459A SE397643B (sv) 1973-03-16 1974-03-14 Instellnings- och lyftanordning for en transportor vid en dubbelbandad kontinuerligt arbetande metallgjutmaskin
DE2412240A DE2412240C2 (de) 1973-03-16 1974-03-14 Anhebevorrichtung für die obere Gießband-Tragvorrichtung einer Stranggießmaschine
AU66591/74A AU486467B2 (en) 1973-03-16 1974-03-14 Carriage orientation and lift system fora twin belt continuous casting machine
CH366374A CH594459A5 (fr) 1973-03-16 1974-03-15
CA195,117A CA1004825A (en) 1973-03-16 1974-03-15 Carriage orientation and lift system for a twin belt continuous metal casting machine
FR7408856A FR2221205B1 (fr) 1973-03-16 1974-03-15
BE142102A BE812412A (fr) 1973-03-16 1974-03-15 Installation pour la coulee de metal en continu avec courroies jumelees
JP49030511A JPS5857258B2 (ja) 1973-03-16 1974-03-16 ソウベルトレンゾクチユウソクウキ ノ ホウコウシジ オヨビ リフトソウチ
GB1199774A GB1466178A (en) 1973-03-16 1974-03-18 Twin belt continuous casting machine
IT20820/74A IT1007488B (it) 1973-03-16 1974-04-08 Sistema per il sollevamento e l o rientamento del carrello di una macchina a doppia cinghia per la colata continua di un metallo

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US00342096A US3848658A (en) 1973-03-16 1973-03-16 Carriage orientation and lift system for a twin belt continuous metal casting machine

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US3848658A true US3848658A (en) 1974-11-19

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US00342096A Expired - Lifetime US3848658A (en) 1973-03-16 1973-03-16 Carriage orientation and lift system for a twin belt continuous metal casting machine

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US (1) US3848658A (fr)
JP (1) JPS5857258B2 (fr)
BE (1) BE812412A (fr)
CA (1) CA1004825A (fr)
CH (1) CH594459A5 (fr)
DE (1) DE2412240C2 (fr)
FR (1) FR2221205B1 (fr)
GB (1) GB1466178A (fr)
IT (1) IT1007488B (fr)
SE (1) SE397643B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492696A1 (fr) * 1980-10-27 1982-04-30 Hazelett Strip Casting Corp Procede et dispositif de coulee continue de metal, du type a deux bandes
US4537243A (en) * 1980-10-22 1985-08-27 Hazelett Strip-Casting Corporation Method of and apparatus for steam preheating endless flexible casting belt
US4921037A (en) * 1988-07-19 1990-05-01 Hazelett Strip-Casting Corporation Method and apparatus for introducing differential stresses in endless flexible metallic casting belts for enhancing belt performance in continuous metal casting machines
WO1999010119A1 (fr) * 1997-08-27 1999-03-04 Kaiser Aluminum & Chemical Corporation Appareil permettant de regler l'espace dans une machine de coulee
US20040168789A1 (en) * 2003-02-28 2004-09-02 Wyatt-Mair Gavin F. Method and apparatus for continuous casting
US20050205234A1 (en) * 2003-02-28 2005-09-22 Wyatt-Mair Gavin F Method and apparatus for continuous casting
US20070000637A1 (en) * 2003-02-28 2007-01-04 Wyatt-Mair Gavin F Method and apparatus for continuous casting
US20070215314A1 (en) * 2006-03-16 2007-09-20 John Fitzsimon Belt casting machine having adjustable contact length with cast metal slab
US20110020972A1 (en) * 2009-07-21 2011-01-27 Sears Jr James B System And Method For Making A Photovoltaic Unit
US20110036530A1 (en) * 2009-08-11 2011-02-17 Sears Jr James B System and Method for Integrally Casting Multilayer Metallic Structures
US20110036531A1 (en) * 2009-08-11 2011-02-17 Sears Jr James B System and Method for Integrally Casting Multilayer Metallic Structures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170218U (fr) * 1986-04-17 1987-10-28

Citations (4)

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US2904860A (en) * 1955-12-27 1959-09-22 Hazelett Strip Casting Corp Metal casting method and apparatus
US3142873A (en) * 1958-03-17 1964-08-04 Hazelett Strip Casting Corp Continuous metal casting apparatus
US3167830A (en) * 1960-12-08 1965-02-02 Hazellett Strip Casting Corp Continuous metal casting apparatus
US3310849A (en) * 1965-02-15 1967-03-28 Hazelett Strip Casting Corp Continuous metal casting apparatus

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GB837474A (en) * 1955-12-27 1960-06-15 Hazelett Strip Casting Corp Metal casting method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904860A (en) * 1955-12-27 1959-09-22 Hazelett Strip Casting Corp Metal casting method and apparatus
US3142873A (en) * 1958-03-17 1964-08-04 Hazelett Strip Casting Corp Continuous metal casting apparatus
US3167830A (en) * 1960-12-08 1965-02-02 Hazellett Strip Casting Corp Continuous metal casting apparatus
US3310849A (en) * 1965-02-15 1967-03-28 Hazelett Strip Casting Corp Continuous metal casting apparatus

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537243A (en) * 1980-10-22 1985-08-27 Hazelett Strip-Casting Corporation Method of and apparatus for steam preheating endless flexible casting belt
FR2492696A1 (fr) * 1980-10-27 1982-04-30 Hazelett Strip Casting Corp Procede et dispositif de coulee continue de metal, du type a deux bandes
US4367783A (en) * 1980-10-27 1983-01-11 Hazelett Strip-Casting Corporation Method and apparatus for continuous casting of metal under controlled load conditions
US4921037A (en) * 1988-07-19 1990-05-01 Hazelett Strip-Casting Corporation Method and apparatus for introducing differential stresses in endless flexible metallic casting belts for enhancing belt performance in continuous metal casting machines
WO1999010119A1 (fr) * 1997-08-27 1999-03-04 Kaiser Aluminum & Chemical Corporation Appareil permettant de regler l'espace dans une machine de coulee
US6044896A (en) * 1997-08-27 2000-04-04 Alcoa Inc. Method and apparatus for controlling the gap in a strip caster
US20050205234A1 (en) * 2003-02-28 2005-09-22 Wyatt-Mair Gavin F Method and apparatus for continuous casting
US6880617B2 (en) 2003-02-28 2005-04-19 Alcon Inc. Method and apparatus for continuous casting
US20040168789A1 (en) * 2003-02-28 2004-09-02 Wyatt-Mair Gavin F. Method and apparatus for continuous casting
US7089993B2 (en) 2003-02-28 2006-08-15 Alcoa Inc. Method and apparatus for continuous casting
US20070000637A1 (en) * 2003-02-28 2007-01-04 Wyatt-Mair Gavin F Method and apparatus for continuous casting
US7503377B2 (en) 2003-02-28 2009-03-17 Alcoa Inc. Method and apparatus for continuous casting
US20070215314A1 (en) * 2006-03-16 2007-09-20 John Fitzsimon Belt casting machine having adjustable contact length with cast metal slab
WO2007104156A1 (fr) * 2006-03-16 2007-09-20 Novelis Inc. machine de coulage à courroie A longueur de contact réglable avec dalle de métal couléE
US7823623B2 (en) 2006-03-16 2010-11-02 Novelis Inc. Belt casting machine having adjustable contact length with cast metal slab
US20110020972A1 (en) * 2009-07-21 2011-01-27 Sears Jr James B System And Method For Making A Photovoltaic Unit
US7888158B1 (en) 2009-07-21 2011-02-15 Sears Jr James B System and method for making a photovoltaic unit
US20110036530A1 (en) * 2009-08-11 2011-02-17 Sears Jr James B System and Method for Integrally Casting Multilayer Metallic Structures
US20110036531A1 (en) * 2009-08-11 2011-02-17 Sears Jr James B System and Method for Integrally Casting Multilayer Metallic Structures

Also Published As

Publication number Publication date
IT1007488B (it) 1976-10-30
GB1466178A (en) 1977-03-02
CA1004825A (en) 1977-02-08
AU6659174A (en) 1975-09-18
SE397643B (sv) 1977-11-14
JPS5857258B2 (ja) 1983-12-19
FR2221205B1 (fr) 1978-09-08
CH594459A5 (fr) 1978-01-13
DE2412240C2 (de) 1983-10-27
BE812412A (fr) 1974-07-01
FR2221205A1 (fr) 1974-10-11
SE7403459L (fr) 1974-11-29
DE2412240A1 (de) 1974-09-26
JPS5025435A (fr) 1975-03-18

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