EP0073670A1 - A mold oscillation apparatus for curved-type continuous casting machines - Google Patents

A mold oscillation apparatus for curved-type continuous casting machines Download PDF

Info

Publication number
EP0073670A1
EP0073670A1 EP82304550A EP82304550A EP0073670A1 EP 0073670 A1 EP0073670 A1 EP 0073670A1 EP 82304550 A EP82304550 A EP 82304550A EP 82304550 A EP82304550 A EP 82304550A EP 0073670 A1 EP0073670 A1 EP 0073670A1
Authority
EP
European Patent Office
Prior art keywords
oscillation
mold
lever
base frame
curvature
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.)
Granted
Application number
EP82304550A
Other languages
German (de)
French (fr)
Other versions
EP0073670B1 (en
Inventor
Susumu Kosakujigyobu Onoda
Toshio Kosakujigyobu Kikuchi
Yasuichi Kosakujigyobu Kagayama
Tadashi Murakami
Kazushige Kimura
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14970009&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0073670(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to AT82304550T priority Critical patent/ATE16466T1/en
Publication of EP0073670A1 publication Critical patent/EP0073670A1/en
Application granted granted Critical
Publication of EP0073670B1 publication Critical patent/EP0073670B1/en
Expired legal-status Critical Current

Links

Images

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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/053—Means for oscillating the moulds

Definitions

  • This invention relates to an apparatus for oscillating a mold for curved-type continuous casting machines, and more partiuclarly to an apparatus for oscillating a mold having a small radius of curvature.
  • the invention as claimed provides:
  • An illustrated apparatus of the invention is basically a single lever type constriction to ensure motion along a perfect circular arc, and comprises a base frame of adequate rigidity, an oscillation lever mounted at its fulcrum on said base frame, a cam mechanism for oscillation mounted on said base frame, and a drive motor mounted on said base frame, said base frame being detachably mounted on a structure which in turn is securedly supported on a concrete foundation.
  • An apparatus according to the present invention can be advantageously incorporated into a curved-type continuous casting machine having a small radius of curvature since it becomes compact in construction due to the fact that the length of the oscillation lever is reduced with smaller radius of curvature.
  • the oscillation lever has its center of oscillation corresponding to the center of curvature of a mold, so that the mold oscillates about the center of curvature to provide an accurate circular arc, thereby saving the trouble of locating the center of curvature of the mold anywhere on the building where the continuous casting machine is mounted.
  • the center of curvature of a mold is immune from any displacement which would be caused by distortion of the building in the prior art, so that the mold can oscillate along an accurate circular arc.
  • a mold having its center of curvature fixed thereto can be attached to a continuous casting machine only by mounting a base frame on a structure, and various elements prvoided on the base frame can be completely repaired at a location away from the continuous casting machine to improve an efficiency of repair work.
  • an apparatus for oscillating a mold 1 of a curved-type continuous casting machine (not shown).
  • the apparatus is generally designated by numeral 10, and comprises an oscillation lever 2 for the mold 1, a base frame 3, a bracket 4 secured to said base frame, an oscillation cam shaft 5 rotatably mountd on said base frame, an oscillation drive lever 6 oscillatorily mounted on said cam shaft, a reduction gear 7 for oscillation drive, and a drive motor (not shown).
  • These components constitute an integral oscillation unit.
  • the mold 1 has a path la for cast strands, which path has a radius of curvature R, and is detachably secured to the oscillation lever 2 by bolts 11 such that a center O 1 of curvature of the path la corresponds to a fulcrum at which the oscillation lever 2 is pivotally mounted on the bracket 4.
  • the oscillation lever 2 is also pivotally attached at a loading point 0 2 to the oscillation drive lever 6 to oscillate about the fulcrum, that is, the center O 1 of curvature.
  • the loading point 0 2 is located on a line passing through the center O 1 of curvature.
  • the oscillation drive lever 6 is swingingly driven by the oscillation cam shaft 5 which is in turn driven by the drive motor (not shown) through the reduction gear 7 for oscillation drive.
  • the oscillation unit thus constructed is provided at the underside of the base frame 3 with a plurality of positioning liners 3a, through which the unit is positioned on top support surfaces 8a of a structure 8 and is detachably secured to the structure 8 by means of cotter pins 12.
  • the structure 8 is rigidly mountd on a concrete foundation 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Devices For Molds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Confectionery (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Looms (AREA)
  • Earth Drilling (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

An apparatus 10 serves to oscillate a mold 1 for curved-type continuous casting machines, and comprises a base frame 3 detachably mounted on a structure 8, a bracket 4 secured to the base frame and having a fulcrum corresponding to a center 0, of curvature for a path la of cast metal in the mold 1, an oscillation lever 2 having its one end pivotally mounted at the fulcrum to the bracket 4, and an oscillation drive lever 6, to which the other end of the oscillation lever 2 is pivotally mounted at a loading point 02. The mold 1 is detachably fixed to the oscillation lever 2 as by bolts 11 with its center 0, of curvature corresponding to the fulcrum of the bracket 4. The oscillation drive lever 2 is swingingly driven by a drive motor through a reduction gear 7, so that the mold 1 can oscillate about the center 0, of curvature.

Description

  • This invention relates to an apparatus for oscillating a mold for curved-type continuous casting machines, and more partiuclarly to an apparatus for oscillating a mold having a small radius of curvature.
  • In order to prevent cast strands from sticking to molds in continuous casting, there have been conventionally employed measures in which a mold in curved-type continuous casting machines is caused to oscillate by a stroke along a locus having a radius R of curvature. In these measures, precision for the locus of oscillation having a radius R of curvature must be strict to some extent in order to reduce surface defects on cast strands to the minimum. To this end, it is necessary to devise constructions or mechanisms for ensuring precision of locus having a radius R of curvature in oscillation of molds. In the prior constructions or mechanisms, guide rolls or single lever are utilized. However, these prior art constructions or mechanisms involve various problems such as the reduction in precision due to abrasion of guide surfaces and the difficulty in ensuring precision of locus due to the fact that position of fulcrum for the single lever is shifted upon deformation of the building structure to a part of which the fulcrum of the single lever is 3ecured. Another problem involved in the prior art constructions or mechanisms resides in that repair or maintenance of driving mechanism and the like must be performed in a small area within the continuous casting machine.
  • It is an object of the invention to solve the above problems involved in the prior art constructions or mechanisms.
  • It is another object of the invention to provide an apparatus in which precision of oscillation for a mold is ensured for a long period of time and which can be completely repaired from the outside.
  • It is a further object of the invention to provide an apparatus which is advantageously applied to continuous casting machines with a small radius of curvature.
  • The invention as claimed provides:
    • An apparatus for oscillating a mold for curved-type continuous casting machines, said apparatus comprising a base frame having a fulcrum corresponding to a center of curvature for a path of cast strands in said mold and detachably mounted on a structure; an oscillation lever having its one end pivotally mounted at said fulcrum to said base frame; an oscillation drive means operatively connected to the other end of said oscillation lever and fixed to said base frame.
  • An illustrated apparatus of the invention is basically a single lever type constriction to ensure motion along a perfect circular arc, and comprises a base frame of adequate rigidity, an oscillation lever mounted at its fulcrum on said base frame, a cam mechanism for oscillation mounted on said base frame, and a drive motor mounted on said base frame, said base frame being detachably mounted on a structure which in turn is securedly supported on a concrete foundation.
  • An apparatus according to the present invention can be advantageously incorporated into a curved-type continuous casting machine having a small radius of curvature since it becomes compact in construction due to the fact that the length of the oscillation lever is reduced with smaller radius of curvature.
  • In one aspect of the invention, the oscillation lever has its center of oscillation corresponding to the center of curvature of a mold, so that the mold oscillates about the center of curvature to provide an accurate circular arc, thereby saving the trouble of locating the center of curvature of the mold anywhere on the building where the continuous casting machine is mounted. According to the invention, the center of curvature of a mold is immune from any displacement which would be caused by distortion of the building in the prior art, so that the mold can oscillate along an accurate circular arc.
  • In another aspect of the invention, a mold having its center of curvature fixed thereto can be attached to a continuous casting machine only by mounting a base frame on a structure, and various elements prvoided on the base frame can be completely repaired at a location away from the continuous casting machine to improve an efficiency of repair work.
  • One way of carrying out the invention is described in detail below with reference to the drawing which illustrates only one specific embodiment and is an elevational view of apparatus constructed according to the invention.
  • Referring now to the drawing, there is shown an apparatus for oscillating a mold 1 of a curved-type continuous casting machine (not shown). The apparatus is generally designated by numeral 10, and comprises an oscillation lever 2 for the mold 1, a base frame 3, a bracket 4 secured to said base frame, an oscillation cam shaft 5 rotatably mountd on said base frame, an oscillation drive lever 6 oscillatorily mounted on said cam shaft, a reduction gear 7 for oscillation drive, and a drive motor (not shown). These components constitute an integral oscillation unit. The mold 1 has a path la for cast strands, which path has a radius of curvature R, and is detachably secured to the oscillation lever 2 by bolts 11 such that a center O1 of curvature of the path la corresponds to a fulcrum at which the oscillation lever 2 is pivotally mounted on the bracket 4. The oscillation lever 2 is also pivotally attached at a loading point 02 to the oscillation drive lever 6 to oscillate about the fulcrum, that is, the center O1 of curvature. The loading point 02 is located on a line passing through the center O1 of curvature. The oscillation drive lever 6 is swingingly driven by the oscillation cam shaft 5 which is in turn driven by the drive motor (not shown) through the reduction gear 7 for oscillation drive.
  • The oscillation unit thus constructed is provided at the underside of the base frame 3 with a plurality of positioning liners 3a, through which the unit is positioned on top support surfaces 8a of a structure 8 and is detachably secured to the structure 8 by means of cotter pins 12. The structure 8 is rigidly mountd on a concrete foundation 9.
  • While this invention has been described in conjunction with a preferred emodiment thereof, it is obvious that modifications and changes therein may be made by those skilled in the art without departing from the spirit and scope of this invention, as defined by the claims appended hereto.

Claims (4)

1. An apparatus 10 for oscillating a mold 1 for curved-type continuous casting machines, said apparatus comprising a base frame 3 having a fulcrum corresponding to a center O1 of curvature for a path la of cast strands in said mold and detachably mounted on a structure 8; an oscillation lever 2 having its one end pivotally mounted at said fulcrum to said base frame; an oscillation drive means operatively connected to the other end of said oscillation lever and fixed to said base frame.
2. An apparatus as set forth in claim 1 wherein said oscillation drive means comprises an oscillation drive lever 6, to which the other end of said oscillation lever 2 is pivotally mounted.
3. An apparatus as set forth in claim 1 or 2 wherein said base frame 3 comprises a bracket 4, to which the one end of said oscillation lever is pivotally mounted.
4. An apparatus as set forth in claim 3 wherein said mold 1 of the curved-type continuous casting machine is detachably fixed to said oscillation lever 2.
EP82304550A 1981-08-31 1982-08-27 A mold oscillation apparatus for curved-type continuous casting machines Expired EP0073670B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82304550T ATE16466T1 (en) 1981-08-31 1982-08-27 A MOLD OSCILLATION DEVICE FOR CONTINUOUS ARCH CASTING PLANTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP127842/81U 1981-08-31
JP1981127842U JPS6041328Y2 (en) 1981-08-31 1981-08-31 Mold vibration device for curved continuous casting

Publications (2)

Publication Number Publication Date
EP0073670A1 true EP0073670A1 (en) 1983-03-09
EP0073670B1 EP0073670B1 (en) 1985-11-13

Family

ID=14970009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304550A Expired EP0073670B1 (en) 1981-08-31 1982-08-27 A mold oscillation apparatus for curved-type continuous casting machines

Country Status (7)

Country Link
EP (1) EP0073670B1 (en)
JP (1) JPS6041328Y2 (en)
AT (1) ATE16466T1 (en)
AU (1) AU531914B2 (en)
BR (1) BR8205008A (en)
DE (1) DE3267454D1 (en)
ES (1) ES515353A0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593743A (en) * 1985-05-09 1986-06-10 Continuous Casting Systems Inc. Continuous casting apparatus having oscillator for mold tube
RU2201842C2 (en) * 2001-04-17 2003-04-10 Открытое акционерное общество "Специальное конструкторское бюро приборостроения и автоматики" Electrohydraulic drive of mechanism for rocking mold

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458011A1 (en) * 1963-01-30 1968-11-07 Concast Ag Device for generating an axial oscillating movement in continuous casting molds
FR1549548A (en) * 1967-11-03 1968-12-13
US3881544A (en) * 1974-01-11 1975-05-06 Koppers Co Inc Mold oscillating apparatus
DE2329561B2 (en) * 1973-06-09 1976-09-23 OSCILLATION DEVICE FOR A CONTINUOUS CASTING CLOTH WITH A CHILL CARRIAGE SWIVELING UP A HORIZONTAL AXIS FROM THE CASTING POSITION

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490342A (en) * 1966-08-26 1967-07-28 Device for oscillating the passage shell in continuous metal casting plants

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458011A1 (en) * 1963-01-30 1968-11-07 Concast Ag Device for generating an axial oscillating movement in continuous casting molds
FR1549548A (en) * 1967-11-03 1968-12-13
DE2329561B2 (en) * 1973-06-09 1976-09-23 OSCILLATION DEVICE FOR A CONTINUOUS CASTING CLOTH WITH A CHILL CARRIAGE SWIVELING UP A HORIZONTAL AXIS FROM THE CASTING POSITION
US3881544A (en) * 1974-01-11 1975-05-06 Koppers Co Inc Mold oscillating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593743A (en) * 1985-05-09 1986-06-10 Continuous Casting Systems Inc. Continuous casting apparatus having oscillator for mold tube
RU2201842C2 (en) * 2001-04-17 2003-04-10 Открытое акционерное общество "Специальное конструкторское бюро приборостроения и автоматики" Electrohydraulic drive of mechanism for rocking mold

Also Published As

Publication number Publication date
AU531914B2 (en) 1983-09-08
JPS5833152U (en) 1983-03-04
JPS6041328Y2 (en) 1985-12-16
AU8743682A (en) 1983-04-14
ES8307552A1 (en) 1983-08-01
BR8205008A (en) 1983-08-02
ES515353A0 (en) 1983-08-01
DE3267454D1 (en) 1985-12-19
EP0073670B1 (en) 1985-11-13
ATE16466T1 (en) 1985-11-15

Similar Documents

Publication Publication Date Title
US3782446A (en) Device for oscillating a continuous casting mold
EP0073670A1 (en) A mold oscillation apparatus for curved-type continuous casting machines
JPS608890B2 (en) Automatic loading and unloading device for press work
US4832525A (en) Double-bearing shaft for a vibrating screed
CA1047390A (en) Hammer ram press
JP2714615B2 (en) Pouring equipment for castings
US4729249A (en) Reciprocating plunger pump having separate and individually removable crosshead cradles
US4757734A (en) Balancing means in a punching machine
US3822738A (en) Apparatus for guiding an oscillating continuous casting mold at a continuous casting installation with curved path of travel of the strand
US4526304A (en) Apparatus for rapid changing of nozzles
KR100216139B1 (en) Tire press
KR100215145B1 (en) Motorized press mechanism
US4529031A (en) Apparatus and method for continuous casting
JPS63157742A (en) Continuous casting machine with improved mold vibrator
SU1366044A3 (en) Device for teeming molten metal
KR20010021709A (en) Press device for processing lead frames
US4951566A (en) Screen printing apparatus
FI74895C (en) STRYKANORDNING FOER LOEPANDE PRODUKTBANOR, SAERSKILT PAPPERSBANOR.
US6065527A (en) Synchronized oscillator for continuous casting apparatus
US4593743A (en) Continuous casting apparatus having oscillator for mold tube
SU1038065A1 (en) Apparatus for filling lining of steel teeming laddles
JPH07328748A (en) Mold vibration device for curved continuous casting machine
CN218425558U (en) Shakeout machine for producing automobile parts
JPH0130581B2 (en)
JPH03106540A (en) Continuous casting equipment

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19830812

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL

REF Corresponds to:

Ref document number: 16466

Country of ref document: AT

Date of ref document: 19851115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3267454

Country of ref document: DE

Date of ref document: 19851219

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19860827

26 Opposition filed

Opponent name: MANNESMANN AKTIENGESELLSCHAFT

Effective date: 19860724

NLR1 Nl: opposition has been filed with the epo

Opponent name: MANNESMANN AKTIENGESELLSCHAFT

BERE Be: lapsed

Owner name: NIPPON STEEL CORP.

Effective date: 19860831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19870301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19870430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19870501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19870517

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state
PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO