US3814169A - Dummy bar handling system - Google Patents

Dummy bar handling system Download PDF

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Publication number
US3814169A
US3814169A US00278645A US27864572A US3814169A US 3814169 A US3814169 A US 3814169A US 00278645 A US00278645 A US 00278645A US 27864572 A US27864572 A US 27864572A US 3814169 A US3814169 A US 3814169A
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US
United States
Prior art keywords
casting
cartridge
dummy bar
travel
path
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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
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US00278645A
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English (en)
Inventor
B Knell
W Bruderer
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SMS Concast AG
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Concast AG
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Filing date
Publication date
Application filed by Concast AG filed Critical Concast AG
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Publication of US3814169A publication Critical patent/US3814169A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/08—Accessories for starting the casting procedure
    • B22D11/085—Means for storing or introducing the starter bars in the moulds

Definitions

  • ABSTRACT An apparatus for feeding a short dummy bar from the path of travel of a casting into the region of the casting mold for introducing the dummy bar through the casting mold into a successive at least partially curved roller apron or strand guide.
  • the apparatus of this development comprises a cartridge or cassette which can be located in a position for introduction of the dummy bar into the path of travel of the casting and a transport mechanism for the dummy bar.
  • the cartridge provided with stop means and co-operating with the transport mechanism is mounted to be pivotal, the
  • pivot axis of the cartridge being arranged at the path of travel of the casting mat the direct neighborhood thereof. ln the pivoted position of the cartridge the stop means exhibits a spacing from the path of travel of the casting which is greater than one half of the thickness of the cast casting.
  • the present invention relates to a new and improved apparatus for feeding a short dummy bar out of the path of travel of the casting into the region of the casting mold for introducing the dummy bar through the mold into a successively arranged at least partially curved roller apron, this apparatus comprising a cartridge located in a position enabling introduction of the dummy bar into the path of travel of the casting and a transport mechanism for the dummy bar.
  • the casting or strand outlet end of the continuous casting mold must be closed in order to prevent, on the one hand, outflow of metal poured into the hollow compartment of the mold and, on the other hand to render possible the feed of the casting through solidification of the head of the casting while forming a connection with the dummy bar.
  • a further possibility according to proposals of the prior art resides in raising the dummy bar, following its separation from the casting, by means of a crane from the roller bed or assembly to a height above the casting platform and with the dummy bar in a suspended state above the casting platform transferring such from an outer region of the casting platform to the axis of the path of travel of the casting.
  • the dummy bar is then lowered through the casting mold into the roller apron or strand guide.
  • the entire travelling path for the apparatus for transporting the dummy bar from an outer region of the casting platform to the region of the casting mold must be maintained unobstructed, that is to say, there is only an extremely slight degree of utilization of the space necessary for other activities, for instance for tending or servicingthe tundish.
  • a lifting means is required to bring the dummy bar after its separation out of the region of the path of travel of the casting.
  • Another and more specific object of the present invention relates to a new and improved construction of apparatus by means of which the dummy bar can be introduced from above through the casting mold into the roller apron or strand guide and at the same time there can be realized a saving in the casting platform area and lifting means.
  • Yet a further significant object of the present invention relates to a novel apparatus for transferring a dummy bar from the region of the path of travel of the casting to the casting mold of a continuous casting plant in a highly efficient and reliable manner, requiring a minimum of components for achieving these operations and while reducing the necessary, surface area of the casting platform.
  • the cartridge provided with stop means and co-ope rating with the transport mechanism is pivotably mounted, the pivot axis of this cartridge being arranged at the path of travel of the casting or at the direct region thereof, and wherein the stop means in the pivoted position of the cartridge possesses a spacing from the casting path of travel which is greater than one-half of the thickness of the cast or poured casting.
  • the expression at least at the direct neighborhood of the casting path of travel or like terminology is intended to embrace both of the aforementioned possibilities, namely, where the pivot axis is located at the casting path of travel or at its immediate or direct region.
  • the cartridge co-operating in its pivoted position with the transport mechanism can be 1 the cartridge in such a manner that it can be removed,
  • a further aspect of the invention advantageously contemplates arranging a guide track for the transport mechanism essentially beneath the casting platform from the region of the cartridge pivot location to the region of the casting mold.
  • FIG. 1 schematicall illustrates, partially in longitudinal sectional view, a continuous casting installation embodying a casting mold, strand guide or roller apron, withdrawal mechanism, dummy bar cartridge depicted both in its starting position as well as also in its pivoted position, and the transport mechanism for the dummy bar with the associated guide track;
  • FIG. 2 is a sectional view of the continuous casting installation depicted in FIG. 1, taken substantially along the line ll thereof and showing the dummy bar cartridge without the dummy bar in its pivoted positlon.
  • reference character 1 denotes a flexible dummy bar.
  • a stopping and withdrawing head or dummy bar head 2 is articulated with the dummy bar 1, this stopping and withdrawing head 2 providing theconnection to a casting or strand 5, hereinafter merely conveniently referred to as the casting.
  • the dummy bar I can be introduced into a dummy bar cartridge or cassette 3 and when so introduced is located right in front of a stop or stop means 4.
  • the cartridge 3 is pivoted through the action of a suitable drive, here the cylinder-piston unit 17, out of the path of travel 23 for the casting 5, this path of travel 23 being defined by the schematically illustrated conventional roller apron.
  • a suitable drive here the cylinder-piston unit 17, out of the path of travel 23 for the casting 5, this path of travel 23 being defined by the schematically illustrated conventional roller apron.
  • the stopping and withdrawing head 2 is uncoupled from the casting 5.
  • the cylinderpiston unit 17 has been merely disclosed as an exemplary type of mechanism for pivoting the cartridge 3 and easily could be replaced by other suitable drives, such as a lift hoist or jack or a rotary drive.
  • the pivot axis 22 is shown arranged at the casting path of travel 23, and in this regard there is to be understood a plane which extends through the central axis of the casting 5 and essentially parallel to the support rolls 24.
  • this pivot axis 22 could also be arranged at the direct region of the casting pathof travel, for instance,slightly above such path of travel.
  • the cartridge 3 co-operates with a transport mechanism 15 here in the form of a'carriage which could also be replaced, by way of example, by an electric hoist or equivalent.
  • This transport mechanism 15 is constructed such that with the aid of conventional support and receiving means, it
  • the transport mechanism 15 can receive the cartridge 3 with the therein disposed dummy bar 1 in the pivoted position. It is of course possible for the transport mechanism 15 to merely receive the dummy bar.
  • the cartridge 3 can be provided with a suitable drive 18 for conveying the dummy bar, or as illustrated, the transport mechanism -15 can possess a drive unit 16 by means of which the dummy bar 1 can be conveyed into the cartridge 3.
  • a guide track 20 is operatively associated with the transport mechanism 15, this guide track 20 extending substantially from the pivot location of the cartridge beneath a casting platform 12 to the region of a casting mold 8. This guide track 20 is arranged such that it travels in an ascending fashion and while changing its direction.
  • the cartridge 3' is advantageously detachable from the support means 21 for the pivot axis 22, such as for instance by employing conventional hydraulic ejectors, merely schematically indicated by reference character in FIG. 2.
  • the drive for the transport mechanism 15 there can also be employed the drive unit 16 or there can be arranged a further non-illustrated drive.
  • the transport mechanism 15 is equipped with rollers 26 which bear upon tracks 25 and this transport mechanism is also provided with conventional and therefore not particularly illustrated power transmission means, such as for instance a gear rack drive or cable traction drive.
  • the guide track 20 is designed so that it changes its direction, then, for instance, the cartridge 3 with the dummy bar 1' is initially conveyed in the direction of the lengthwise axis of the casting, then horizontally out of the region of the casting, thereafter adjacent installation, along the guide track 20 which extends essentially beneath the casting platform 12 to the region of the casting mold 8 and at this location is again horizontally conveyed along the track or rails 29 to the .lengthwise axis of the casting mold.
  • the rails 29 can simultaneously serve as the rails of a travelling casting ladle or vessel.
  • the direction of conveying of the transport mechanism 15 can be changed with the aid ofa number of devices, for instance, by means of rotary disks or switches or in that the rolls 26 are designed to be pivotable, to which end known lift means can be provided, by means of which the rollers 26 can be load-relieved to allow such to be pivoted into a desired direction of travel.
  • the transport mechanism 15 is equipped with conventional adjustment means which have not been particularly shown and by means of which the dummy bar 1' can be positionally aligned with respect to the lengthwise axis of the casting mold 8.
  • the stop means 4 is advantageouslydisplaceably mounted at the cartridge 3 in such a manner that it can be removed,
  • One possibility for realizing such is to design the stop means 4 so as to be formed ofa number of parts 40 and 411 (FIG. 2), wherein such individual stop parts or components can be easily pivoted out of the interior of the cartridge'3.
  • stop means 4 co-operate with the drive unit 16 such that this stop means when pivoted, engages with the dummy bar 1, retaining the dummy bar in its position at the cartridge 3. Then the dummy bar 1 is subsequently lowered with the aid of the suitablyarranged stop means 4 and the drive unit 16 through the casting mold 8.
  • the dummy bar 1 is lowered to such an extent through the casting mold 8 into the curved roller apron 9 which is provided with driven rollers 10 arranged between guide rollers, until it is engaged and held by the uppermost driven rollers 10.
  • the other drive and guide rollers of such standard roller apron 9 have not been particularly shown in the drawing to preserve clarity in illustration.
  • the transport mechanism together with the cartridge 3 is now again brought to a location above the support arrangement 21 and the cartridge 3 is again connected therewith, so that the equipment is ready for receiving the next dummy bar 1.
  • the cartridge 3' is again pivoted into the casting path of travel to assume the full-line cartridge position 3 as soon as the end of the travelling casting has passed the region of the pivot axis 22.
  • the cartridge 3 has been depicted in its pivoted or rocked position 3' in which it co-operates with the transport mechanism 15.
  • the cartridge stop means 4 is spaced by an amount 35 from the path of travel 23. of the casting 5. This distance 35 is greater than one-half of the thickness of the casting 5.
  • the connection of the cartridge 3 with the support or bearing 21 is detachable, for instance through the agency of the hydraulic ejector devices above-discussed.
  • the invention is by no means restricted to the exemplary illustrated embodiments, rather there are possible a number of different modifications such as, for instance, arranging the pivot axis 22 at the end of the cartridge 3 confronting the withdrawing and straightening machine, wherein, depending upon the shape of the stopping and withdrawing head 2, the cartridge 3 however should first then be pivoted when the stopping and withdrawing head 2 has moved past the pivot axis 22 in the direction of travel of the casting.
  • An apparatus for feeding a dummy bar from the path of travel of a casting of a continuous casting installation to the region of a continuous casting mold for introducing the dummy bar through the casting mold into a successively arranged at least partially curved roller apron comprising the combination of: a transport mechanism for receiving and supporting the dummy bar for movement to.the continuous casting mold, a cartridge located at the region of the casting path of travel for receiving the dummy bar, said cartridge having stop means, said cartridge cooperating with said transport mechanism, means for pivotably mounting said cartridge about a pivot axis for pivoting the cartridge and the therein received dummy bar the pivot axis of said cartridge being arranged at least at the direct neighborhood of the casting path of travel, said stop means in the pivoted position of said cartridge possessing a spacing from the casting path of travel which is greater than one-half of the thickness of the cast casting, a casting platform at which there is arranged a con- -tinuous casting mold, guide track means for said transof travel in a plane extending through
  • pivotal mounting means for the cartridge comprises a support and pivot shaft means, said pivot shaft means being detachable from the support.
  • An apparatus for feeding a dummy bar from the path of travel of a casting of a continuous casting installation to the region of a continuous casting mold for introducing the dummy bar through the casting mold into a successively arranged at least partially curved roller apron comprising the combination of: a transport mechanism for physically receiving and'supporting the dummy bar, a cartridge located at the region of the casting path of travel for receiving the dummy bar, said cartridge having stop means, said cartridge cooperating with said transport mechanism, means for pivotably mounting said cartridge about a pivot axis, for pivoting the cartridge and the dummy bar out of the path of travel of the strand while simultaneously disconnecting the dummy bar from the casting, the pivot axis of said cartridge being arranged at least at the direct neighborhood of the casting path of travel, said stop means in the pivoted position of said cartridge possessing a spacing from the casting path of travel which is greater than one-half of the thickness of the cast casting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
US00278645A 1971-08-06 1972-08-07 Dummy bar handling system Expired - Lifetime US3814169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1159471A CH537223A (de) 1971-08-06 1971-08-06 Vorrichtung für die Zuführung eines kurzen Anfahrstranges aus der Strangbahn in den Kokillenbereich

Publications (1)

Publication Number Publication Date
US3814169A true US3814169A (en) 1974-06-04

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ID=4374992

Family Applications (1)

Application Number Title Priority Date Filing Date
US00278645A Expired - Lifetime US3814169A (en) 1971-08-06 1972-08-07 Dummy bar handling system

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US (1) US3814169A (enrdf_load_stackoverflow)
JP (1) JPS5219527B2 (enrdf_load_stackoverflow)
CA (1) CA964839A (enrdf_load_stackoverflow)
CH (1) CH537223A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971429A (en) * 1974-08-27 1976-07-27 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Process of extracting a hot slab from a continuous casting mould and an apparatus therefor
FR2393634A1 (fr) * 1977-06-09 1979-01-05 Clesid Sa Dispositif pour ranger une fausse barre d'une installation de coulee continue d'acier
US4217950A (en) * 1978-12-11 1980-08-19 Sack Gmbh Continuous casting apparatus
US4412579A (en) * 1982-05-07 1983-11-01 Koppers Company, Inc. Apparatus for handling a continuous casting machine starter bar

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50135718U (enrdf_load_stackoverflow) * 1974-04-24 1975-11-08
JPS5346253Y2 (enrdf_load_stackoverflow) * 1975-04-15 1978-11-06
JPS51142447A (en) * 1975-06-03 1976-12-08 Tsubakimoto Chain Co Device for symmetric works
JPS527836A (en) * 1975-07-09 1977-01-21 Kubota Ltd Method of fitting stopper of joint for use in steel pipe field joining
JPS5334650A (en) * 1976-09-13 1978-03-31 Kubota Ltd Automatic spot welding machine for curved surfaces
DE2759660B2 (de) * 1977-03-31 1981-07-16 Mannesmann Demag Ag, 4100 Duisburg Stranggießvorrichtung mit einer Anfahrstrang-Aufnahme für einen kurzen Anfahrstrang
DE2714338C3 (de) 1977-03-31 1984-08-02 Mannesmann AG, 4000 Düsseldorf Anfahrstrang-Transportvorrichtung
FR2425290A1 (fr) * 1978-05-12 1979-12-07 Clesid Sa Dispositif de stockage du mannequin pour une machine a coulee continue
FR2428486A1 (fr) * 1978-06-14 1980-01-11 Fives Cail Babcock Dispositif de mise en place d'un faux lingot en vue de la preparation d'une nouvelle coulee, dans une installation de coulee continue
IT1141781B (it) * 1980-03-04 1986-10-08 Simac Spa Dispositivo di traino della billetta negli impianti a colata continua

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495651A (en) * 1967-03-08 1970-02-17 Koppers Co Inc Starting device for continuous castings
US3628595A (en) * 1969-10-22 1971-12-21 Koppers Co Inc Pivotally mounted starter bar in a continuous casting machine
US3661199A (en) * 1969-10-21 1972-05-09 Schloemann Ag Dummy bar storage apparatus
US3682233A (en) * 1970-09-02 1972-08-08 Pennsylvania Engineering Corp Continuous casting machine starting system
US3692094A (en) * 1970-12-30 1972-09-19 United States Steel Corp Apparatus for receiving and storing a flexible starter bar
US3698469A (en) * 1970-04-23 1972-10-17 United Eng Foundry Co Dummy bar handling system
US3762462A (en) * 1970-01-23 1973-10-02 Fives Lille Cail Apparatus for storing and positioning the leader of an ingot in a continuous casting apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495651A (en) * 1967-03-08 1970-02-17 Koppers Co Inc Starting device for continuous castings
US3661199A (en) * 1969-10-21 1972-05-09 Schloemann Ag Dummy bar storage apparatus
US3628595A (en) * 1969-10-22 1971-12-21 Koppers Co Inc Pivotally mounted starter bar in a continuous casting machine
US3762462A (en) * 1970-01-23 1973-10-02 Fives Lille Cail Apparatus for storing and positioning the leader of an ingot in a continuous casting apparatus
US3698469A (en) * 1970-04-23 1972-10-17 United Eng Foundry Co Dummy bar handling system
US3682233A (en) * 1970-09-02 1972-08-08 Pennsylvania Engineering Corp Continuous casting machine starting system
US3692094A (en) * 1970-12-30 1972-09-19 United States Steel Corp Apparatus for receiving and storing a flexible starter bar

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971429A (en) * 1974-08-27 1976-07-27 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Process of extracting a hot slab from a continuous casting mould and an apparatus therefor
FR2393634A1 (fr) * 1977-06-09 1979-01-05 Clesid Sa Dispositif pour ranger une fausse barre d'une installation de coulee continue d'acier
US4217950A (en) * 1978-12-11 1980-08-19 Sack Gmbh Continuous casting apparatus
US4412579A (en) * 1982-05-07 1983-11-01 Koppers Company, Inc. Apparatus for handling a continuous casting machine starter bar

Also Published As

Publication number Publication date
JPS5219527B2 (enrdf_load_stackoverflow) 1977-05-28
CH537223A (de) 1973-05-31
JPS4825627A (enrdf_load_stackoverflow) 1973-04-03
CA964839A (en) 1975-03-25

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