CA1183323A - Method and apparatus for the manipulation of a starting chain during format changes in continuous casting installations - Google Patents

Method and apparatus for the manipulation of a starting chain during format changes in continuous casting installations

Info

Publication number
CA1183323A
CA1183323A CA000376288A CA376288A CA1183323A CA 1183323 A CA1183323 A CA 1183323A CA 000376288 A CA000376288 A CA 000376288A CA 376288 A CA376288 A CA 376288A CA 1183323 A CA1183323 A CA 1183323A
Authority
CA
Canada
Prior art keywords
chain
guide
remainder
segment
guides
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
CA000376288A
Other languages
French (fr)
Inventor
Hans J. Reuter
Hermann Take
Charles Werner
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.)
MECANARBED Sarl
Original Assignee
MECANARBED Sarl
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 MECANARBED Sarl filed Critical MECANARBED Sarl
Application granted granted Critical
Publication of CA1183323A publication Critical patent/CA1183323A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/08Accessories for starting the casting procedure
    • B22D11/085Means for storing or introducing the starter bars in the moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Pusher Or Impeller Conveyors (AREA)
  • Specific Conveyance Elements (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

ABSTRACT
The invention is concerned with a method and an apparatus for the manipulation of starting chain segments for continuous strand casting whereby the segments are coupled to and decoupled from a remainder of a starting chain.
According to the invention, the chain remainder is displaced into a first arcuate upright guide and is retained at rest therein. A chain segment is disposed into a second arcuate upright guide having the lower end thereof aligned with the lower end of the first guide, and is coupled to the chain remainder between the lower ends of the guides. Where it is desired to decouple a segment from the chain remainder, such segment is disposed into the second guide and is de-coupled from the chain remainder between the lower ends of the guides; the chain segment is thereafter retracted from the second guide. The invention permits the rapid insertion and removal of starting chain segments during a change in the format or cross-section of a continuously cast strand in a continuous casting installation utilizing such starting chains.

Description

3~3 ~le presen-t invention rela-tes to a method and apparatus for the manipulation of a starting chain and seg-ments thereof during forrnat changes in continuous strand casting installations. The invention is more particularly directed toward the rapid insertion and removal of a starting chain upon a change in the format or cross section of a continuously cast strand in a continuous casting installationO
In the continuous casting of metals, such as steel, the melt is fed substantially continuously into a continuous casting mold and travels as a continuously cast strand along a guide over which the strand is cooled~ The continuously cas trand may then be subdivided into sections of prede-termined length and subjected to rolling or drawing with or without intervening cooling, soa~ing or other reheating processes.
At the start of each casting operation, it is known to use so-called starting chains which require mani-pulation as these must be placed into position and -there-~0 after withdrawn from their respective position during each ormat change or change in the cross section of the strand to be produced.
The manipulation of starting chains during format changes in continuous casting installations is a time-conswling and complex problem requiring, heretofore, space-consuming apparatus which must be coordinated with a high degree of manual labor and hence requires a signi-ficant amount of time.
During thi.s period, the continuous casting installation is at s-tand-still so that the productivi-ty of the installation is directly affected in an adverse manner ~a by the time required for the handling of the startiny chains during fo.nmat changes.
Conventional systems also have been found to create problems in start:ing chain manipulation which have increased the down-time and interrupted the continuity of operations of the continuous casting plant as well.
It is obviously desirable to provide a multipli-city of starting chains which can be provided with heads whose con~igurations vary in accordance with the different formats to be generated. These chains can be stoxed in maga-zines so as to be held ready for use and such magazines or transfer carriages can be arranged so as to enable the individual chain (3e~nents with their respective heads to be manipulated at the inception of each casting operation.
Since the chains frequently have considerable length, magazines for startingchains generally have signifi-cant volume and the removal of a chain fr~m the magazine and its introduction into the magazine after use can require not only considerable work but complex ancillary equipment which also occupies considerable space.
It is an object of the present invention to provide a method and an apparatus for the manipulation of starting chains which enable the insertion and removal of the starting chaihs to be carried out rapidly, thereby minimizing interruptions in the casting sequence.
It is another object of the invention to provide a method and an apparatus for the manipulation of starting chains which enable the chains to be handled in a relatively sr.lall space, wi~h a minimum of manual labor and over a much shorter period of time than has heretofore been the case, thereby allowing the intervallesbetween casting operations to be Minimized.

33'~

In accordance with the present invention, there is thus provided a method for the manipula-tion of starting chain se~ments for cont:Lnuous strand casting whereby the segments are coupled to and decoupled from a remainder of a star-ting chain, which method comprises the s-teps of:
a) displacing the chain remainder into a first arcuate upright guide and retaining the chain remainder at rest in the first guide, b3 disposing a chain segment into a second arcuate upright guide having the lower end thereof aligned with the lower end of the fi.rst guide, and coupling the chain remainder to the cha.in segment between the lower ends of the guides, or c) disposing a segment of the chain remainder into the second guide, decoupling the segment from the chain remainder between the lower ends of the guides and retracting the chain segment from the second guide.
The invention also provides an apparatus for carrying out a method as defined above~ which apparatus com-prises:
a first arcuate upright guide adapted to receive the chain remainder, means for displacing the chain remainder into the first guide and for retaining the chain remainder at rest in the first guide, a second arcuate upright guide having the lower end thereof aligned with the lower end of the first guide, the second guide being adapted to receive a chain segment to be coupled to or decoupled from the chain remainder, gripper means positionable above the upper end of the second guide for engaging said chain segment and movable for lowering same into and retracting same from the second guide, and means between -the lower ends of the guides for coupling and decoupling links o~ the chain remainder and of the chain segment disposed in -the second guide.
According to a preferred embodiment, -the apparatus includes means for shifting the gripper mecms from a position wherein the gripper means is aligned with the upper end of the second guide into a posîtion wherein starting chain segments can be transferred ~ the gripper means to or from a magazine~
~s will be apparent from the foregoing, only indi~idual starting chain sections need be stored while, practically continuously, the remainder of the chain remains available to receive or provide a starting chain segment.
The invention is illustrated by way of example in the accompanying drawings:
Fig. 1 is a diagrammatic elevational view, par-tly in section, illustrating an apparatus according to the in-vention, and Fig. 2 is a similar view showing a magazine and a chain-changing carrlage for use in combination with the apparatus of Fig. 1A
Referring to Fig. 1, the apparatus illustrated is seen to include a support 10 comprising uprights 12 and hori-zontal beams 14, 16 and 18 mounted on the uprights above a table 20 forming a transport path for a length 22' of starting chain 22 which will hereinafter be referred to as the remainder of this chain because chain segments 2~ can be removed or added thereto in the manner to be described below.
I~le support 10 carries a motor and speed-reducing gearing represented at 26 on a plat-form 28 for operating the dru~s 30 and 32 of a windlass 34, the cables 36 of which pass ~3~3 over an idler wheel 38 journaled on a bracke-t 40 depending from a horizontal guide member 42 moun-ted on horizontal bearns 44 extending across the beams 18. The beams 18 also serve to suppoxt rails 46 on which roll the wheels of a transport carliage 48, the function of which will be ~escribed below.
The cables 36 also pass over a pulley 50 journaled on the guide member 42 to run along the top of the latter.
The guide member 4~ is provided with rollers 52 along which the remainder 22' of the chain can be supported.
The apparatus of Fig. 1 is used to connect or couple an individual starting chain segment 24 -to the remaindex 22' of the chain or to disconnect or decouple a starting chain se~ment of any desired length from this chain remainder 22' to this end, the chain remainder 22' is introduced into an arcuate guide 54 and brought to rest therein. The arcuate guide 5~ is formed with a stationary wall 56 against which the chain remainder 22' may be held by an array o~
rollers 58, the guide 54 having a vertical section 60 and ~0 an upper elbow 62 which opens onto the guide member 42. A
lower elbow 64 communicates with a swingable ramp 66 which is provided with guide rollers 6~ and is affixed to brackets 70, only one of which has been shown. The brackets 70 carry guide rollers 72 and are pivoted to the support 10 at 74 so that ramp 66 can swing between the dotted and solid line positions shown, i.e. between a position in which the lower end 76 o~ the ramp 66 meets the surface of the table 20 and a position in which the ramp 66 is horizontal.
The support 10 also carries a fixed coupling mechanism 78 for the automatic separation or joining of lin~s of the chain.

In the horizontal position, the ramp 66 is alignecl with another arcuate guide 80 having guide rollers 82 and an upwardly oriented end where a gripper-lifter--transport mechanism 84 is operative to engage a length of chain which has been separated from the starting chain 22 to form the segment 24 and the chain remainder 22'.
To separate the starting chain 22 into the chain segment 24 and the remainder 22', the chains is introduced into the guides 54 and 80 so that the links to be separated are disposed directly ahead o~ the fixed coupling mechanism 78~ Conversely, to couple a chain segment 24 onto the chain remainder 22', the segment 24 is introducecl into the guide 80 while the chain remainder 22' is introduced into guide 54 so that the links to be connected lie directly ahead of the fixed coupling mechanism 78. The link pins can be removed or inserted manually or automatically.
For introducing the starting chain 22 into the guide 54 to its rest position, the ramp 66 is lowered into its dotted line position and the cable 36 is connected to the end of the chain 22 (or a remainder 22') on the table 20 as shown in the lower portion of Fig~ l. The windlass 3~ is then operated to draw this end of the chain 22 (or remainder 22') onlo the guide member 42 as shown in the upper portion of Fig. l~ The ramp 66 is swung upwardly into its solid line position and the end of the chain is then permitted to feed through the guide 80 or is positioned to meet a chain segment 24 which has been lowered into the guide 80 by the mechanism 84.
A drive mechanism 86 is provided for the chain segment 24 to be coupled to the chain remainder 22' or to be decoupled from the chain 22.

The gripper-lifter--transport mechanism 8A
includes a gripper 88 having a pair of gripping tongs 88' adapted to engage -the head 90 of a starting chain segment 24.
The gripper 88 is raised or lowered by a windlass 92 via the cable 94, the windlass 92 being mounted on the transport carriage 48 which is movable along the support rails ~6. As best shown in Fig~ 2, the mechani.sm 84 i5 transferred bD a ~ain-changing carriage 96 which is displaceable via the wheels 98 into and out of the magazine 100. The transport carriage 48 and the change carriage 96 can be provided with automatic-ally operable tra~sfer means to enable the chain segments 24 to be deposited in or extracted from the magazine.
Thus, the guide 54 can contain at any time a section of chain, referred to earlier as the chain remainder, which can be connected rapidly to a section drawn from the magazine to prepare a starting chain for use or to recover a length of chain from a previously used starting chain. The arcuate guide arrangement ensures that the entire installation will occupy a ~inimum of space.
The delivery of a chain segment 24 into the guide 80 is effected in part by the drive rollers 102~ 104 of the drive mechanism 86 and in part by the weight of the length of chain in the guide 54 when the ramp 66 is swung upwardly.
The tongs 8~3' can be actuated hydraulically to withdraw a chain section from the guide 80 after having gripped this section in the position A. The windlass 92 then lifts the separated segment to position B for the transverse displace-ment thereof by the transport carriage 48 which delivers the chain segment to the change carriage 94n ~1he change carriage can displaced from position A' to position B' to deposit the chain in the magazine 100, as shown in Fig. 2.

~3~

When the change carriage 96 is returned to i-ts position A', the transport carriage 48 can be shifted into alignment with another magazine row for withdrawal of a different start.ing chain segment. ~he introduc-tion of the starting chain segment 24 and its attachment -to the chain remainder 22' is effected in the reverse mannerO

Claims (9)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:-
1. A method for the manipulation of starting chain segments for continuous strand casting whereby the segments are coupled to and decoupled from a remainder of a starting chain, said method comprising the steps of:
a) displacing said chain remainder into a first arcuate upright guide and retaining said chain remainder at rest in said first guide;
b)disposing a chain segment into a second arcuate upright guide having the lower end thereof aligned with the lower end of said first guide, and coupling said chain remainder to said chain segment between the lower ends of said guides; or c) disposing a segment of said chain remainder into said second guide, decoupling said segment from said chain remainder between said lower ends of said guides and retracting said chain segment from said second guide.
2. A method as defined in claim 1, wherein a segment is decoupled from said chain remainder between said lower ends of said guides, said method further comprising the steps of gripping an upper end of said chain segment adjacent the upper end of said second guide, raising said chain segment to retract same from said second guide and displacing the retracted segment transversely to a vertical plane containing said guides into a magazine.
3. A method as defined in claims 1 or 2, wherein said chain remainder is displaced upwardly into said first guide on a swingable ramp which is thereafter moved to bridge said lower ends of said guides.
4. An apparatus for the manipulation of starting chain segments for continuous strand casting whereby the segments are coupled to and decoupled from a remainder of a starting chain, said apparatus comprising:
a first arcuate upright guide adapted to receive said chain remainder;
means for displacing said chain remainder into said first guide and for retaining said chain remainder at rest in said first guide;
a second arcuate upright guide having the lower end thereof aligned with the lower end of said first guide, said second guide being adapted to receive a chain segment to be coupled to or decoupled from said chain remainder;
gripper means positionable above the upper end of said second guide for engaging said chain segment and movable for lowering same into and retracting same from said second guide; and means between the lower ends of said guides for coupling and decoupling links of said chain remainder and of said chain segment disposed in said second guide.
5. An apparatus as defined in claim 4, including means for shifting said gripper means from a position wherein said gripper means is aligned with said upper end of said second guide into a position wherein starting chain segments can be transferred by said gripper means to or from a magazine.
6. An apparatus as defined in claim 4, including a swingable ramp between the lower end of said first guide and the lower end of said second guide, said ramp being swingable between a position wherein said ramp bridges said lower ends of said guides and a position wherein said ramp is inclined upwardly relative to said lower end of said first guide for permitting said chain remainder to be displaced into said first guide.
7. An apparatus as defined in claim 5, including a windlass having a cable connected to said gripper means for raising and lowering same, and a carriage carrying said windlass and shiftable transversely to a vertical plane containing said guides for thereby carrying said gripper means into the region of said magazine.
8. An apparatus as defined in claim 7, wherein said magazine is provided with a change carriage adapted to receive the carriage carrying said windlass.
9. An apparatus as defined in claim 8, wherein said change carriage is displaceable for permitting said gripper means to be shiftable along rows of chains in said magazine.
CA000376288A 1980-04-28 1981-04-27 Method and apparatus for the manipulation of a starting chain during format changes in continuous casting installations Expired CA1183323A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU82409 1980-04-28
LU82409A LU82409A1 (en) 1980-04-28 1980-04-28 METHOD AND DEVICE FOR INPUTING AND OUTPUTING A START-UP CHAIN WHEN FORMAT CHANGING IN A CONTINUOUS CASTING SYSTEM

Publications (1)

Publication Number Publication Date
CA1183323A true CA1183323A (en) 1985-03-05

Family

ID=19729399

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000376288A Expired CA1183323A (en) 1980-04-28 1981-04-27 Method and apparatus for the manipulation of a starting chain during format changes in continuous casting installations

Country Status (8)

Country Link
EP (1) EP0039303B1 (en)
JP (1) JPS5722855A (en)
AT (1) ATE8346T1 (en)
AU (1) AU536813B2 (en)
CA (1) CA1183323A (en)
DE (1) DE3164671D1 (en)
LU (1) LU82409A1 (en)
ZA (1) ZA812685B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2628350B1 (en) * 1988-03-10 1990-12-21 Clecim Sa DEVICE FOR HANDLING, STORING AND INTRODUCING THE STARTING MANNEQUIN IN A CONTINUOUS CASTING SYSTEM
CN114313599B (en) * 2021-12-20 2023-11-07 新兴铸管股份有限公司 Lockable dummy ingot storage device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458211A1 (en) * 1964-06-30 1970-04-02 Schloemann Ag Device for receiving the starting heads of lines cast in continuous casting machines
FR1499224A (en) * 1966-07-22 1967-10-27 United Eng Foundry Co Dummy flexible bar for a molding machine
DE1961443A1 (en) * 1969-12-08 1971-06-24 Demag Ag Method and device for introducing the starting strand in a metal, in particular steel, continuous casting plant
IT1082620B (en) * 1977-08-30 1985-05-21 Continua Int MACHINE FOR THE EXTRACTION AND THE INSERTION OF THE FALSE ARTICULATED BAR IN CONTINUOUS CASTING PLANTS

Also Published As

Publication number Publication date
EP0039303B1 (en) 1984-07-11
LU82409A1 (en) 1982-01-20
AU536813B2 (en) 1984-05-24
JPS5722855A (en) 1982-02-05
ZA812685B (en) 1982-04-28
ATE8346T1 (en) 1984-07-15
DE3164671D1 (en) 1984-08-16
AU6992181A (en) 1981-11-05
EP0039303A1 (en) 1981-11-04

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