US3557652A - Apparatus for severing horizontal strands produced by continuous casting - Google Patents

Apparatus for severing horizontal strands produced by continuous casting Download PDF

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Publication number
US3557652A
US3557652A US765850A US3557652DA US3557652A US 3557652 A US3557652 A US 3557652A US 765850 A US765850 A US 765850A US 3557652D A US3557652D A US 3557652DA US 3557652 A US3557652 A US 3557652A
Authority
US
United States
Prior art keywords
girder
strand
rocker arm
clamping
cutting
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
US765850A
Other languages
English (en)
Inventor
Heribert Krall
Hans Adalbert Koch
Karl Vollbracht
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.)
Technica Guss GmbH
Original Assignee
Technica Guss GmbH
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
Priority claimed from DE19681608088 external-priority patent/DE1608088C/de
Application filed by Technica Guss GmbH filed Critical Technica Guss GmbH
Application granted granted Critical
Publication of US3557652A publication Critical patent/US3557652A/en
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
    • B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4757—Tool carrier shuttles rectilinearly parallel to direction of work feed
    • Y10T83/476—Including means to secure work to carrier
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7755—Carrier for rotatable tool movable during cutting
    • Y10T83/7763—Tool carrier reciprocable rectilinearly
    • Y10T83/7776—With means to reciprocate carrier
    • Y10T83/778—And means to rotate tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8763—Convertible from tool path to another or from implement to machine

Definitions

  • the disclosure relates to an apparatus for severing individual pieces from horizontal strands produced by continuous casting having varying drawing speeds. It has a base frame on which is mounted for movement a girder in a longitudinal direction and parallel to the strands to be severed.
  • the girder has clamp means that move with it that grip onto a selected strand and are moved by the movement of the strand.
  • Also mounted on the girder for longitudinal movement therewith but pivotal thereto is a rocker arm which pivotally carries a cutter means.
  • a cylinder and piston that telescopically connects with the rocker arm to rock it into position with a strand, yet the rocker arm may move longitudinally with respect to the base through the telescopic connection.
  • Another cylinder and piston are mounted on the rocker arm and connected to the cutter means to pivot it.
  • a third cylinder and piston are connected at one end to the fixed base and extends parallel to the girder and is connected at their other end to the rocker arm and thus there is moved longitudinally the rocker arm and the girder on which the rocker arm is mounted.
  • the third piston and cylinder are actuated to return the girder and the parts mounted thereon to a position for reclamping of the clamp means to a selected strand for movement therewith for cutting off of another piece of the strand.
  • the cutting tool post is in a transverse-position to the strand and movably mounted in a parallel position to the strand.
  • the shifting motion of the tool post is necessary becausejth'e strand advances according to its drawing speed when the individual pieces are cut therefrom.
  • the shifting motion is initiated by closing of a gripping device representing the mechanical connection between strand and cutting tool slide.
  • Theinfeed motion of the cutting wheel or saw blade is caused by. the to andfro motion of the cutting device on a straight guide extending in a parallel position to the strand.
  • the advantages arising'from the invented device are obvious; by using a'single apparatus almost any number of adjacent strandscanbe severedat the usual'drawing speeds and lengths'of pieces.
  • the cutting device of the invention is easily adjustable to each strand and so isthe drag coupling quickly converted to the dimensionof-the'cast strand.
  • FIG. I shows a view in the direction of the cast strand
  • FIG. '2 an elevational view at the-left of FIG. I;
  • a base 1 of the device there is movably mounted a longitudinally extending girder or support bar 2.
  • Parallel to girder 2 run strands 3 and 4 coming from a casting machine (not shown) and from which pieces of random length are cut by means of the new device with which is associated the grinding or cutting wheel 5 driven by motor 6 by an angular drive.
  • the cutting device 7 consisting of grinding wheel 5 and motor 6 is pivotally mounted around axis 8.
  • the cutting device 7 is held by rocker arm 9 which is pivotally though not movably mounted on girder 2.
  • Rocker 9 also carries arm 10 to which cylinder 11 is secured, the piston rod 12 of which is connected with cutting device. 7.
  • Lever 13 is driven by the pneumatic .or hydraulic cylinder 15 which pivotally engages arm 16 or lever 13.
  • the other end of hydraulic cylinder 15 is secured to base I.
  • the telescopic connection I4,-see FIGS. 2 and 4, is needed as cylinder 15 is connected to base I and rocker arm 9 carrying the cutting means 7 moves longitudinally and parallelly with the strands 3 and 4.
  • Lever I3 and lever 16 are attached to a bushing 13'.
  • the bushing 13 is pivoted on the supporting bar 2.
  • the clamping device 18 is firmly connected to the two ends 17 and I7 of the supporting bar 2.
  • the clamping device consists of the cross bars 19, 20, the length bar 21, the bars 22, 22' and 23, as well as the proper pairs of clamping bars 24, 25 and 26, 27.
  • the cross bars 19, 20 connect the supporting bar 2 firmly to the length bar 21.
  • the bars 22, 22 and 23 are firmly connected to this.
  • the pivots 30 and 31 are positioned on the bars 22, 22 and 23.
  • the clamping bars 24, 25, 26 and 27 are journaled on these pivots 30 and 31.
  • the clamping bars 24 and 26 can be moved towards each other and away from each other by the hydraulic cylinder 28 and the clamping bars 25, and 27 can be moved by the hydraulic cylinder 29.
  • the pressure screw 32 is provided in the clamping bar 24 and can be adjusted to such an extent that it exerts a force on strand 4.
  • a counterforce is generated by the counterpiece 32' which is firmly connected to the clamping bar 26.
  • the hydraulic cylinder 28 can now be operated in such a way that the two clamping bars 24,26 are moved one towards the other. Owing tothis strand 4 is clamped between the pressure screw 32 and the counterpiece 32. Upon conveying strand 4 out of the casting mould by means of a drawing device not shown, the clamping device 18 is moved at the same speed as the strand. As already mentioned, the severing disc 5 is pivoted on the supporting bar 2, however, it is shiftably supported in the longitudinal direction. In view of this it moves at the same speed as strand 4 when operating hydraulic cylinder 28.
  • the present invention represents an When operating hydraulic cylinder 29 the clamping device 18 is connected to strand 3 and the severing disc 5 moves at the same speed as strand 3. As a matter of fact only one cylinder 28 or 29 should be operated if the strands 3 and 4 have different drawing speeds.
  • the severing disc 5 and the clamping device 18 have covered a portion of the path in drawing direction together with the strand to be severed. From this position they are to be returned again into their initial position for the next severing operation.
  • a compressed-air or hydraulic cylinder 34 see FIG. 2, which has one end attached to a lug on base 1 and on the other end to arm 10 of the severing unit 7.
  • the severing operation consists of:
  • the clamping device 18 and the severing unit 7 cover a portion of the path in the drawing direction of the strand. After swinging back of the severing disc 5 it is returned into its upper resting position and after loosening the clamp, the clamping device 18 and the severing unit 7 are returned to their initial position.
  • Apparatus for severing individual pieces from horizontal strands cast on end and having varying drawing speeds, whereby one of two or more parallel running strands can be selectively engaged and cut including a base frame, a horizontally mounted girder extending parallel to the strands, means mounting the girder on the base frame for longitudinal movement, strand clamping means pivotally mounted on the girder and extending transverse thereto and longitudinally movable therewith, rocker arm means pivotally mounted on the girder and extending transverse thereto and longitudinally movable therewith, cutting means pivotally mounted on the rocker arm means and extending transversely to the girder for cutting a selected strand, means connected to the rocker arm means for moving same and the pivotally mounted cutting means thereon adjacent a selected strand from which a piece is to be cut, means connected to the pivotally mountedcutting means to bring it into engagement with the strand and to move it to cut through the strand, whereby on clamping said strand clamping means to the strand said clamping
  • Apparatus according to claim 1 including means connected with the girder for moving the same longitudinally.
  • Apparatus according to claim 3 wherein said means to move the girder includes a cylinder and piston-type servomotor.
  • said clamping means and its pivotal mounting on the girder includes, crossbeams pivotally mounted and extending transversely adjacent each end of the girder, a main beam connecting the crossbeams and extending parallel and proximal to the girder, generally vertically extending spaced apart support beams connected to and depending from said main beam, an upper pair of generally horizontally extending and horizontally spaced apart clamp beamspivotally connected at their inner ends to said support beams, a lower pair of clamp beams extending generally parallel to said respective upper pair of clamp beams and pivotally connected to the lower end portions of said support beams, power cylinder means connecting the outer ends of said respective pairs of clamp beams for moving each pair of clamp beams toward and from each other, pressure screw clamp means connected to said clamping beams and adapted for selectively clamping to parallel spaced apart strands extending between the clamping beams.
  • Apparatus as defined in claims 3 or 5 wherein said respective means connected respectively with said rocker arm to pivot the same, said cutting means to pivot the same and said means to move the girder and the means connected therewith include cylinder and piston-type servomotors.
  • said pivotally mounted cutting means is mounted adjacent said strand clamping means in the direction from which said strands are drawn and includes an arm pivotally mounted intermediateits ends to the depending end of said rocker arm, a rotary cutting disc mounted on the end of said arm adjacent said clamping means and a motor drive means mounted on the other end of said arm and having drive means connecting it with said rotary cutting disc, said means connected to the cutting means to pivot the same is connected to said arm last mentioned ad- 40 jacent said cutting disc.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
US765850A 1968-01-20 1968-10-08 Apparatus for severing horizontal strands produced by continuous casting Expired - Lifetime US3557652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681608088 DE1608088C (de) 1968-01-20 1968-01-20 Trennaggregat für hozitontale Mehrfach-Stranggießanlagen

Publications (1)

Publication Number Publication Date
US3557652A true US3557652A (en) 1971-01-26

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US765850A Expired - Lifetime US3557652A (en) 1968-01-20 1968-10-08 Apparatus for severing horizontal strands produced by continuous casting

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US (1) US3557652A (de)
AT (1) AT283615B (de)
FR (1) FR1574548A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030116005A1 (en) * 2001-03-15 2003-06-26 Reich Spezialmaschinen Gmbh Cutting subassembly
WO2003089170A1 (en) * 2002-04-19 2003-10-30 Action Machinery Company Of Alabama, Inc. Compliant cutoff saw assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501551A1 (fr) * 1981-03-11 1982-09-17 Fives Cail Babcock Procede et dispositif de tronconnage pour installation de coulee continue a plusieurs files

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707816A (en) * 1951-06-05 1955-05-10 Henderson John Leonard Means for sawing off lengths of tubing or other lengths of material
US3267783A (en) * 1964-09-14 1966-08-23 Northern Electric Co Lead sleeve cutting and handling equipment
US3377900A (en) * 1966-02-09 1968-04-16 United Wire & Supply Corp Flying saw

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707816A (en) * 1951-06-05 1955-05-10 Henderson John Leonard Means for sawing off lengths of tubing or other lengths of material
US3267783A (en) * 1964-09-14 1966-08-23 Northern Electric Co Lead sleeve cutting and handling equipment
US3377900A (en) * 1966-02-09 1968-04-16 United Wire & Supply Corp Flying saw

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030116005A1 (en) * 2001-03-15 2003-06-26 Reich Spezialmaschinen Gmbh Cutting subassembly
US6948414B2 (en) * 2001-03-15 2005-09-27 Reich Spezialmaschinen Gmbh Cutting subassembly
WO2003089170A1 (en) * 2002-04-19 2003-10-30 Action Machinery Company Of Alabama, Inc. Compliant cutoff saw assembly
US20050247175A1 (en) * 2002-04-19 2005-11-10 Cooper Christopher W Compliant cutoff saw assembly
US8061244B2 (en) 2002-04-19 2011-11-22 Action Machinery Company Of Alabama, Inc. Compliant cutoff saw assembly

Also Published As

Publication number Publication date
FR1574548A (de) 1969-07-11
AT283615B (de) 1970-08-10

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