US3735804A - Adjustable conducting roll apparatus - Google Patents

Adjustable conducting roll apparatus Download PDF

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Publication number
US3735804A
US3735804A US00118799A US3735804DA US3735804A US 3735804 A US3735804 A US 3735804A US 00118799 A US00118799 A US 00118799A US 3735804D A US3735804D A US 3735804DA US 3735804 A US3735804 A US 3735804A
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US
United States
Prior art keywords
roll
pair
housing
housings
movable
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
US00118799A
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English (en)
Inventor
G J Wagner
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.)
STEEL CORP PITTSBURGH US
United States Steel Corp
Original Assignee
STEEL CORP
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Filing date
Publication date
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Application granted granted Critical
Publication of US3735804A publication Critical patent/US3735804A/en
Assigned to USX CORPORATION, A CORP. OF DE reassignment USX CORPORATION, A CORP. OF DE MERGER (SEE DOCUMENT FOR DETAILS). Assignors: UNITED STATES STEEL CORPORATION (MERGED INTO)
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—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

  • ABSTRACT Apparatus for conducting a continuously formed casting through a portion of a continuous-casting machine which offers high resistance to movement of the casting therethrough.
  • the apparatus has rolls carried by an inner frame movable in a fixed housing. One roll moves with the inner frame and the other moves independently thereof to close on and drive a casting therethrough whether the casting enters the housing above, below, or on the theoretical pass line.
  • This invention relates to a drive roll apparatus for conducting a moving workpiece and more especially, to a novel apparatus for conducting a continuously formed casting through portions of a casting machine which offer high resistance to movement of the casting. These include (a) conducting the casting vertically into the bending roll assembly, (b) conducting the casting around a curve, especially in which the path of the casting has a constantly changing radius, and (c) conducting the casting in a horizontal direction after such casting has been bent from the vertical direction to the horizontal and straightened.
  • FIG. I is a diagrammatic elevational view of a continuous-casting machine.
  • FIG. 2 is a partially sectioned elevational view of one embodiment of the invented apparatus as it would be in position A of FIG. 1.
  • FIG. 3 is a sectional view taken along line III-III of FIG. 2.
  • FIG. 4 is an end view of an alternative embodiment of the invented apparatus as it would be in position B of FIG. 1.
  • FIG. 5 is partially sectioned elevational vie taken along line V-V of FIG. 4.
  • FIG. 6 is a partially sectioned plan view taken along line VI-VI of FIG. 5.
  • a casting 10 is continuously formed in a mold l2, propelled downwardly by pinch rolls 14, bent by bending rolls 16 which may be driven mold open at the upper end for receiving molten metal but are usually idler rolls, and is straightened in straightener l7.
  • the drive roll apparatus of position A is shown in detail in FIGS. 2 and 3, and includes a roll housing 20 formed of opposed side frames 22 and 23 connected by base 25.
  • a pair of vertical guides 27 are fixed to the inner surface of each side frame.
  • a drive roll frame which is vertically movable within guides 27, comprises two side members 30, top member 31 and bottom member 32.
  • Top drive roll 34 and bottom drive roll 35 are journaled in roll chocks or housings 37 and 38, respectively.
  • Chocks 37 are vertically movable in the two side members 30, which side members 30 act as a second pair of opposed vertical guides.
  • Chocks 38 are fixed to bottom member 32 of the drive roll frame.
  • a pair of hydraulic cylinders 40 are mounted on top frame member 31 and contain reciprocable pistons and piston rods 41.
  • Top roll chocks 37 are'connected to the rods 41 by pins 43 passing through clevises 44 on the chocks.
  • the drive roll frame itself is supported by a pair of hydraulic cylinders 46 mounted on base 25.
  • Cylinders 46 contain reciprocable pistons and piston rods 47 which are not connected to the frame. but merely bear against the bottom of member .32.
  • Spindles 43 and 49 which are flexibly attached to drive means (not shown) impart the driving force to drive rolls 35. and 34, respectively.
  • the top piston rod 41 is retracted causing the top roll to be raised.
  • the bottom roll will be left.at standard elevation, that is, the theoretical elevation of the bottom of thecasting. If the casting is straight, it will enter the drive rolls with clearance between its upper surface and the top.
  • the top piston rod is extended to force the top roll firmly against the casting. If the leading end of the casting is bent upwardly and approaches the drive'rolls at an elevation above the normal pass line, moving the top roll downwardly to contact the casting will cause the drive roll frame to rise in guide 27 until the top and bottom rolls have closed on the casting. The driving force will cause the bent casting to enter succeeding idler rolls which straighten the casting. The straightening action will force the frame to return to its original position atop the piston rod 47. Should the casting enterthe drive rolls at an elevation below the pass line, the bottom piston rod 47 is retracted to drop the 'drive roll frame.'
  • spindles 48 and 49 are removed from the rolls, then the drive frame is merely lifted off piston rods 47 and removed from guides 27.
  • either oversized or undersized castings are equally capable of being driven through the straightener by my invented apparatus, for the drive rolls may be opened to accommodate a thick casting as well as closed to accommodate a thin casting.
  • FIGS. 4, 5 and 6 The alternative embodiment of my invented apparatus shown in FIGS. 4, 5 and 6 is described as in position B in FIG. 1.
  • Bending rolls 16 are normally idler rolls. However, in a bending unit in which the casting follows a circular path, the casting tends to resist bending and to follow its original path of travel. Drive rolls are required in the bending unit to overcome this straightening tendency and to force the casting to travel around the curve. In a bending unit in which the casting follows a path having a constantly changing radius of curvature, each pair of bending rolls is increasingly resistant to passage of the casting. It therefore becomes necessary to include driven rolls in this type of bending roll cluster to overcome this resistance.
  • a fixed frame or housing 50 forms a pair of opposed, recessed guides or tracks 51.
  • a pair of guides 53 are movable in tracks 51.
  • a doubleacting hydraulic cylinder 54 having a piston rod 55 is attached to one end of each guide 53 through clevis 56 and pin 57.
  • the end of piston rod 55 is attached to roll housing support 59 by pins 60.
  • the roll housing support is movable in guides 53 as best shown in FIG. 6.
  • a roll assembly includes drive roll 65 journaled in roll chocks 67 and chock plate 68 to which the chocks are bolted.
  • Pins 70 having keyways 71 therein, are positioned in holes in support 59 and chock plate 68.
  • the roll assembly is detachably fixed to support 59 by keys 72 inserted in the keyways 71.
  • Each chock carries a chock aligning flange 73 which engages guides 53.
  • the end of guides 53 opposite the end to which cylinder 54 is attached carries a fixed roll assembly.
  • This roll assembly includes drive roll 75 journaled in roll chocks 77 and chock plates 78 to which the chocks are bolted.
  • Pins 80 are threaded at one end to fit into the end of guides 53 and have keyways 81 in their other end. After chock plates 78 have been positioned over pins 80, keys 82 are inserted in the keyways to detachably fix the roll assembly to the ends of guides 53.
  • Each chock 77 has a chock aligning flange 84 which engages guide 53 and prevents forces imparted by the casting from causing the roll chocks to twist about plates 78.
  • Spindles 88 and 89 which are flexibly connected to drive means (not shown), impart the driving force to drive rolls 65 and 75, respectively.
  • a stop or seat 90 connected to frame 50 supports roll housing support 59 when there is no casting between the rolls.
  • piston rod 55 In operation, when a casting'approaches the drive roll assembly, piston rod 55 is in the retracted position. As roll housing support 59 is resting on seat 90, retraction of the piston rods has caused movement ofguides 53 upward from seat 90. Roll 75, being a portion of the roll assembly which is fixed to the ends of guides 53, thereupon moves apart from roll 65. When the casting enters the gap between the rolls, piston rod 55 is extended. This causes movement of guides 53 and roll 75 downwardly toward the casting until roll 75 contacts the surface of the casting at which time piston rod 55 continues to be extended raising roll 65 off seat 90 until the latter roll contacts the surface of the casting. This results in a clamping action of the rolls on the casting which creates the friction necessary to drive the casting.
  • spindle 88 or 89 is removed from its associated drive roll as required. Removal of key 72 or 82 disengages the respective roll assembly from the apparatus. The desired roll assembly or assemblies can then be pulled out of guides 53.
  • the invented drive roll apparatus can be used as a vertical drive or main drive moving a casting downwardly out of a continuous-casting mod as well as in a bending roll apparatus, a straightener, or a horizontal drive.
  • frame 50 will include a removable stop to prevent the movement of guides 53 out of tracks 51 at the end away from stop 90.
  • a drive roll assembly that can open to admit a thick casting, close to drive a thick or thin casting, and is capable of adjusting to the actual location or elevation of the casting as it passes through the apparatus.
  • Apparatus for conducting a continuously formed casting through a portion of a continuous-casting machine which offers high resistance to movement of the casting therethrough comprising,
  • said means comprises a first fluid pressure cylinder connected to said first-named housing and carrying said movable tracks, and a second fluid pressure cylinder connected to said movable tracks and to said second pair of roll housings.
  • said means comprises a fluid pressure cylinder connected to said second pair of roll housings and to said movable tracks, and a stop connected to said first-named housing whereby movement of said second roll is limited.
  • An adjustable drive roll pair assembly comprising,
  • a first pair of roll housings connected to the top of said frame and movable in said frame
  • An adjustable drive roll pair assembly as defined in claim 4 in which said first-named means is a fluid pressure cylinder having an associated piston and piston rod.
  • An adjustable drive roll pair assembly as defined in claim 4 in which said second-named means is a fluid pressure cylinder having an associated piston and piston rod.
  • An adjustable drive .roll pair assembly comprising:
  • An adjustable drive roll pair assembly as defined in claim 8 in which said second pair of roll housings are fixed to said roll housing support by a pin having a slotted hole therethrough and an interfitting key.
  • An adjustable drive roll pair assembly as defined in claim 8 including a second roll housing support which carries said first pair of roll housings.
  • An adjustable drive roll pair assembly as defined in claim 10 including:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Wire Processing (AREA)
US00118799A 1971-02-25 1971-02-25 Adjustable conducting roll apparatus Expired - Lifetime US3735804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11879971A 1971-02-25 1971-02-25

Publications (1)

Publication Number Publication Date
US3735804A true US3735804A (en) 1973-05-29

Family

ID=22380813

Family Applications (1)

Application Number Title Priority Date Filing Date
US00118799A Expired - Lifetime US3735804A (en) 1971-02-25 1971-02-25 Adjustable conducting roll apparatus

Country Status (17)

Country Link
US (1) US3735804A (enrdf_load_stackoverflow)
JP (1) JPS553072B1 (enrdf_load_stackoverflow)
AT (1) AT332986B (enrdf_load_stackoverflow)
AU (1) AU460958B2 (enrdf_load_stackoverflow)
BE (1) BE779638A (enrdf_load_stackoverflow)
BR (1) BR7200978D0 (enrdf_load_stackoverflow)
CA (1) CA947928A (enrdf_load_stackoverflow)
DE (1) DE2208357A1 (enrdf_load_stackoverflow)
ES (1) ES400079A1 (enrdf_load_stackoverflow)
FR (1) FR2126326B1 (enrdf_load_stackoverflow)
GB (1) GB1387844A (enrdf_load_stackoverflow)
IT (1) IT951129B (enrdf_load_stackoverflow)
NL (1) NL7202330A (enrdf_load_stackoverflow)
PL (1) PL71098B1 (enrdf_load_stackoverflow)
RO (1) RO57223A (enrdf_load_stackoverflow)
YU (1) YU34254B (enrdf_load_stackoverflow)
ZA (1) ZA721099B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891025A (en) * 1972-06-29 1975-06-24 Schloemann Siemag Ag Apparatus for withdrawing a casting and feeding a dummy bar in a continuous casting machine for steel
US3908746A (en) * 1973-03-30 1975-09-30 Clark Automation Inc Continuous casting machine
US3920065A (en) * 1973-08-27 1975-11-18 United States Steel Corp Curved roll rack
DE2461045A1 (de) * 1974-12-20 1976-07-01 Mannesmann Ag Strangfuehrungsbahn fuer stranggiessanlagen
US4580429A (en) * 1985-01-15 1986-04-08 Morgan Construction Company Rolling mill roll stand with hydraulic roll position control

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011137C2 (de) * 1980-03-22 1988-03-24 Mannesmann AG, 4000 Düsseldorf Verfahren zum Regeln der Einzelantriebe einer Bogenstranggieß-Vielrollenmaschine für Stahl
GB2189449B (en) * 1986-02-26 1990-06-13 Taylor Brothers Extraction of tubes from condensers
FR2615767B1 (fr) * 1987-05-26 1991-06-07 Fives Cail Babcock Perfectionnement aux dispositifs de guidage a rouleaux pour machine de coulee continue
JPS63198836U (enrdf_load_stackoverflow) * 1987-06-11 1988-12-21

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257691A (en) * 1963-02-25 1966-06-28 United States Steel Corp Apparatus for deflecting and guiding a descending slab
US3263284A (en) * 1963-12-20 1966-08-02 United States Steel Corp Constant-pressure pinch rolls for continuous casting
US3314115A (en) * 1964-01-17 1967-04-18 Concast Ag Continuous casting machine
US3338297A (en) * 1964-03-06 1967-08-29 United States Steel Corp Apparatus for bending a casting having a liquid core
US3347308A (en) * 1965-09-10 1967-10-17 United Steel Companies Ltd Machines for continuously casting metal
US3543555A (en) * 1967-05-16 1970-12-01 Demag Ag Form changing device for continuous casting
US3550675A (en) * 1967-01-27 1970-12-29 Schloemann Ag Continuous casting plant having adjustable strand guide means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1531357A (fr) * 1966-08-11 1968-07-05 G Sojuzny I Projektirovanya Me Dispositif de guidage dans la zone du refroidissement secondaire d'une machine de coulée continue de métaux
FR1481068A (fr) * 1965-12-29 1967-05-19 Creusot Forges Ateliers Cage d'extraction pour installation de coulée continue de métaux
JPS4923972A (enrdf_load_stackoverflow) * 1972-06-30 1974-03-02

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257691A (en) * 1963-02-25 1966-06-28 United States Steel Corp Apparatus for deflecting and guiding a descending slab
US3263284A (en) * 1963-12-20 1966-08-02 United States Steel Corp Constant-pressure pinch rolls for continuous casting
US3314115A (en) * 1964-01-17 1967-04-18 Concast Ag Continuous casting machine
US3338297A (en) * 1964-03-06 1967-08-29 United States Steel Corp Apparatus for bending a casting having a liquid core
US3347308A (en) * 1965-09-10 1967-10-17 United Steel Companies Ltd Machines for continuously casting metal
US3550675A (en) * 1967-01-27 1970-12-29 Schloemann Ag Continuous casting plant having adjustable strand guide means
US3543555A (en) * 1967-05-16 1970-12-01 Demag Ag Form changing device for continuous casting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891025A (en) * 1972-06-29 1975-06-24 Schloemann Siemag Ag Apparatus for withdrawing a casting and feeding a dummy bar in a continuous casting machine for steel
US3908746A (en) * 1973-03-30 1975-09-30 Clark Automation Inc Continuous casting machine
US3920065A (en) * 1973-08-27 1975-11-18 United States Steel Corp Curved roll rack
DE2461045A1 (de) * 1974-12-20 1976-07-01 Mannesmann Ag Strangfuehrungsbahn fuer stranggiessanlagen
US4580429A (en) * 1985-01-15 1986-04-08 Morgan Construction Company Rolling mill roll stand with hydraulic roll position control

Also Published As

Publication number Publication date
DE2208357A1 (de) 1972-09-07
FR2126326A1 (enrdf_load_stackoverflow) 1972-10-06
ZA721099B (en) 1972-12-27
AT332986B (de) 1976-10-25
ES400079A1 (es) 1974-12-16
IT951129B (it) 1973-06-30
AU3920972A (en) 1973-08-23
RO57223A (enrdf_load_stackoverflow) 1974-12-15
PL71098B1 (enrdf_load_stackoverflow) 1974-04-30
YU48272A (en) 1978-10-31
YU34254B (en) 1979-04-30
AU460958B2 (en) 1975-04-18
NL7202330A (enrdf_load_stackoverflow) 1972-08-29
GB1387844A (en) 1975-03-19
BE779638A (fr) 1972-08-21
FR2126326B1 (enrdf_load_stackoverflow) 1978-03-03
BR7200978D0 (pt) 1973-06-14
JPS553072B1 (enrdf_load_stackoverflow) 1980-01-23
CA947928A (en) 1974-05-28

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Legal Events

Date Code Title Description
AS Assignment

Owner name: USX CORPORATION, A CORP. OF DE, STATELESS

Free format text: MERGER;ASSIGNOR:UNITED STATES STEEL CORPORATION (MERGED INTO);REEL/FRAME:005060/0960

Effective date: 19880112