US3915356A - Casting machine trough shifting apparatus - Google Patents

Casting machine trough shifting apparatus Download PDF

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Publication number
US3915356A
US3915356A US519260A US51926074A US3915356A US 3915356 A US3915356 A US 3915356A US 519260 A US519260 A US 519260A US 51926074 A US51926074 A US 51926074A US 3915356 A US3915356 A US 3915356A
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US
United States
Prior art keywords
trough
casting machine
support plate
shifting
shifter
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
US519260A
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English (en)
Inventor
William A Montgomery
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.)
WALTER INDUSTRIES Inc
United States Pipe and Foundry Co LLC
Original Assignee
United States Pipe and Foundry Co LLC
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 United States Pipe and Foundry Co LLC filed Critical United States Pipe and Foundry Co LLC
Priority to US519260A priority Critical patent/US3915356A/en
Priority to CA236,792A priority patent/CA1040833A/en
Priority to IN1898/CAL/75A priority patent/IN144293B/en
Priority to FR7531296A priority patent/FR2289277A1/fr
Priority to DE2547365A priority patent/DE2547365C2/de
Priority to EG637/75A priority patent/EG11956A/xx
Application granted granted Critical
Publication of US3915356A publication Critical patent/US3915356A/en
Priority to BR7507069*A priority patent/BR7507069A/pt
Priority to JP50129415A priority patent/JPS5910865B2/ja
Assigned to WALTER INDUSTRIES, INC. reassignment WALTER INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNITED STATES PIPE AND FOUNDRY COMPANY
Assigned to UNITED STATES PIPE AND FOUNDRY COMPANY, A DELAWARE CORPORATION reassignment UNITED STATES PIPE AND FOUNDRY COMPANY, A DELAWARE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WALTER INDUSTRIES, INC.
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
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
    • B22D13/107—Means for feeding molten metal

Definitions

  • ABSTRACT A trough shifting mechanism is provided, for a centrifugal casting machine of the deLavaud type, suspended by hinged members attached to elevated support members. The mechanism is suspended in such a manner as to offer stability for mounting one or more troughs or for mounting a trough and a spray lance. All shifter tracks, wheels or slide ways are eliminated and the shifting actuator may be a cylinder, rack and pinion or other similar device. Apparatus for dumping the trough may also be provided.
  • the present invention relates to the field 'of centrifu gal casting machines of the deLavaud type for casting pipe or tubes and, more specifically, to that portion of a centrifugal casting machine wherein a mechanism moves the longitudinal pouring trough in a direction at a right angle to its longitudinal axis.
  • Such mechanisms are well known in the art and are generally referred to as trough shifters.
  • An early model trough shifter is described in US. Pat. No. 1,489,032 and a later model is described in US. Pat. No. 3,334,683.
  • Devices similar to those described in the above mentioned patents have been used for many years. Due to the environment in which such devices must operate, it is difficult to prevent malfunctions.
  • These shifter mechanisms are located just beneath the machine ladle and the trough chute into which the machine ladle pours molten metal and are usually operated by fluid power devices. Many tons of iron are poured each day from a transfer ladle into the. machine ladle and then from the machine ladle into the trough chute.
  • the present invention is a highly stable smooth operating shifter mechanism suspended from a support structure above the elevation of the trough,'chute, and machine ladle.
  • the invention further provides an operating mechanism and control switches and valves which are conveniently located in such a manner that they are not affected by spills or splashes of molten metal, slag or refractory.
  • the suspension system is simple and easily maintained. Complete access to the control valves, switches and actuating mechanism is provided even during operation of the casting machine. Also, should a trough dumping mechanism be desired, it may be mounted on the shifter and the control valves and switches mounted along with the shifter controls.
  • FIG. 1 is an elevation view looking parallel to the Ion gitudinal axis of the trough.
  • FIG. 2 is a partial elevation view looking to the longitudinal axis of the trough.
  • FIG. 3 is an elevation view looking parallel to the lon-' gitudinal axis of the trough and showing analternate embodiment.
  • Applicants trough shifter is suspended from beams 10 by means of brackets 12 attached thereto and hinge pins 14 inserted into holes provided in the brackets and pins 14 further extending through tubular members 16 (shown in FIG. 2) to which upright members 18 have been welded.
  • the hinge pins 14 are held axially by snap rings 20.
  • tubular members 22 shown in FIG. 2 through which hinge pins 24 extend.
  • Hinge pins 24 also extend through brackets 26 and are held axially by snap rings 20.
  • Brackets 26 are welded to support plate 28 upon which troughs 30 and 31 are mounted in a conventional manner well known to those familiar with the art.
  • An air or hydraulic cylinder 34 is trunnion mounted opposite each of two uprights 18. The cylinder rod is attached to the nearest upright 18 in such a manner that actuation of the cylinder swings the uprights 18 and thus the support plate 28 and all it supports to and fro much like a swing. Since it is important that the troughs 30 and 31 be positioned properly each time the shifter moves, an adjustable stop mechanism 36 is provided. It is preferred to limit the stroke of the cylinder on the in stroke and mount the cylinder such that the full out stroke is used. However, should it be more convenient adjustable stops can be employed in both directions.
  • a limit switch 38 is actuated by limit switch striker 40 which is attached to one upright 18 and thus moves to and fro with the upright.
  • This limit switch 38 signals a control valve 42 for cylinders 34.
  • the cylinders 34, control valve 42 and limit switch 38, along with piping and wiring, are protected by providing a sturdy enclosure 44.
  • the enclosure also provides room for other valves controlling other mechanisms of the casting machine as well as an anchoring point for beams 10.
  • the enclosure 44 may be provided with an access door and other desired conveniences not a part of the present invention.
  • uprights 18 are placed closer together and support plate 28 cantilevered beyond one pair of uprights 18 with lance 32 between the uprights and trough 30 attached to the cantilevered portion of support plate 28.
  • Such an arrangement offers more clearance above the trough for overhead crane service and shortens the cantilevered portion of beams 10.
  • Theshifter mechanism is so located that in the unshifted position trough 30 is directly in line with machine ladle 46 and support plate 28 is substantially horizontal.
  • troughs 30 and 31 are aligned with the mold 48 or, if a spray lance is being used, trough 30 and lance 32 are aligned with the mold 48.
  • the mold 48 is positioned in front of the upwardly curving portion of trough 30 and molten metal from machine ladle 46 is dumped into the trough 30.
  • the mold 48 is rotated and metal from trough 30 pours onto the rotating mold 48 which is retracted from the trough which distributes molten metal along the length of the mold.
  • the machine ladle ceases to pour and the metal poured runs down the trough with the exception of a very small portion which solidifies in the trough.
  • This solidified portion called a splinter should be removed prior to casting again in the mold. Removal may be accomplished by mechanically rotating the trough to an inverted position or by manually picking out the splinter. In either case the time required for removing the splinter and performing any other required trough preparation can delay any subsequent cast. Thus, the first used trough is shifted clear of the machine travel and the second trough is shifted into alignment with the mold, thus allowing a subsequent cast to commence without delay due to trough preparation.
  • An apparatus for shifting the trough of a centrifugal pipe casting machine of the retraction casting type comprising:
  • said reciprocating means is partially located within said enclosure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
US519260A 1974-10-30 1974-10-30 Casting machine trough shifting apparatus Expired - Lifetime US3915356A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US519260A US3915356A (en) 1974-10-30 1974-10-30 Casting machine trough shifting apparatus
CA236,792A CA1040833A (en) 1974-10-30 1975-10-01 Apparatus for shifting trough of centrifugal casting machine
IN1898/CAL/75A IN144293B (xx) 1974-10-30 1975-10-03
FR7531296A FR2289277A1 (fr) 1974-10-30 1975-10-13 Appareil permettant de deplacer le creuset d'une machine de coulee centrifuge
DE2547365A DE2547365C2 (de) 1974-10-30 1975-10-20 Vorrichtung zum Bewegen der Gießwanne einer Schleudergießmaschine
EG637/75A EG11956A (en) 1974-10-30 1975-10-27 Apparatus for shifting through of centrifugal castin machine
BR7507069*A BR7507069A (pt) 1974-10-30 1975-10-29 Aparelho para deslocar a calha de corrida de uma maquina de fundicao centrifuga
JP50129415A JPS5910865B2 (ja) 1974-10-30 1975-10-29 エンシンチユウゾウキノチユウニユウトイオイドウスルタメノ ソウチ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US519260A US3915356A (en) 1974-10-30 1974-10-30 Casting machine trough shifting apparatus

Publications (1)

Publication Number Publication Date
US3915356A true US3915356A (en) 1975-10-28

Family

ID=24067523

Family Applications (1)

Application Number Title Priority Date Filing Date
US519260A Expired - Lifetime US3915356A (en) 1974-10-30 1974-10-30 Casting machine trough shifting apparatus

Country Status (8)

Country Link
US (1) US3915356A (xx)
JP (1) JPS5910865B2 (xx)
BR (1) BR7507069A (xx)
CA (1) CA1040833A (xx)
DE (1) DE2547365C2 (xx)
EG (1) EG11956A (xx)
FR (1) FR2289277A1 (xx)
IN (1) IN144293B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2415504A1 (fr) * 1978-01-27 1979-08-24 Pont A Mousson Support reglable pour ensemble d'alimentation de machine a couler les tuyaux par centrifugation
DE4244928C2 (de) * 1992-12-14 1998-08-27 Herbst Bremer Goldschlaegerei Schleudergußvorrichtung und Schmelztiegel für eine Schleudergußvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334683A (en) * 1964-07-17 1967-08-08 United States Pipe Foundry Trough shifting and dumping apparatus
US3456716A (en) * 1966-02-07 1969-07-22 Pont A Mousson Carriage for a centrifugal casting machine and machine including said carriage
US3522837A (en) * 1967-04-20 1970-08-04 Canada Iron Foundries Ltd Centrifugal pipe casting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480204C (de) * 1926-10-05 1929-07-30 Halbergerhuette G M B H Vorrichtung zum Verfahren der Giessrinne und des Einfuelltrichters von Schleudergussmaschinen
DE628041C (de) * 1934-10-04 1936-03-28 Eisenwerke Akt Ges Deutsche Giessrinne zum Herstellen von Schleudergusshohlkoerpern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334683A (en) * 1964-07-17 1967-08-08 United States Pipe Foundry Trough shifting and dumping apparatus
US3456716A (en) * 1966-02-07 1969-07-22 Pont A Mousson Carriage for a centrifugal casting machine and machine including said carriage
US3522837A (en) * 1967-04-20 1970-08-04 Canada Iron Foundries Ltd Centrifugal pipe casting

Also Published As

Publication number Publication date
JPS5910865B2 (ja) 1984-03-12
DE2547365A1 (de) 1976-05-06
EG11956A (en) 1979-03-31
JPS5167225A (xx) 1976-06-10
DE2547365C2 (de) 1984-10-11
BR7507069A (pt) 1976-08-17
FR2289277A1 (fr) 1976-05-28
IN144293B (xx) 1978-04-22
CA1040833A (en) 1978-10-24
FR2289277B1 (xx) 1980-02-08

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AS Assignment

Owner name: WALTER INDUSTRIES, INC., 1500 NORTH DALE MABRY HIG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNITED STATES PIPE AND FOUNDRY COMPANY;REEL/FRAME:004890/0562

Effective date: 19880517

Owner name: WALTER INDUSTRIES, INC., FLORIDA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNITED STATES PIPE AND FOUNDRY COMPANY;REEL/FRAME:004890/0562

Effective date: 19880517

AS Assignment

Owner name: UNITED STATES PIPE AND FOUNDRY COMPANY, 3300 FIRST

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WALTER INDUSTRIES, INC.;REEL/FRAME:004873/0973

Effective date: 19880517

Owner name: UNITED STATES PIPE AND FOUNDRY COMPANY, A DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WALTER INDUSTRIES, INC.;REEL/FRAME:004873/0973

Effective date: 19880517