US3411567A - Mold supporting structure for casting machine - Google Patents

Mold supporting structure for casting machine Download PDF

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Publication number
US3411567A
US3411567A US557089A US55708966A US3411567A US 3411567 A US3411567 A US 3411567A US 557089 A US557089 A US 557089A US 55708966 A US55708966 A US 55708966A US 3411567 A US3411567 A US 3411567A
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US
United States
Prior art keywords
carriage
casting
molds
mold
carriages
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
US557089A
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English (en)
Inventor
Sieger Maurice Paul
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.)
United Engineering and Foundry Co
Original Assignee
United Engineering and Foundry Co
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 Engineering and Foundry Co filed Critical United Engineering and Foundry Co
Priority to US557089A priority Critical patent/US3411567A/en
Priority to GB22982/67A priority patent/GB1151401A/en
Priority to SE7757/67A priority patent/SE316579B/xx
Priority to AT516767A priority patent/AT274269B/de
Priority to FR109156A priority patent/FR1525696A/fr
Priority to DE19671558354 priority patent/DE1558354B1/de
Priority to BE699620D priority patent/BE699620A/xx
Application granted granted Critical
Publication of US3411567A publication Critical patent/US3411567A/en
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP.OF OH
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
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/06—Ingot moulds or their manufacture
    • B22D7/08—Divided ingot moulds

Definitions

  • the present disclosure relates to an article-casting machine and, more particularly, to an improved construction for supporting one or more molds thereof.
  • the present disclosure provides a mold clamping arrangement that includes a mechanical arrangement for maintaining the molds in their operative casting position which is not subject to power failure, and wherein the construction compensates for the substantial differential between the pressure at the bottom and at the top of the molds.
  • the present invention provides in an article-casting machine having at least a pair of opposed molds, a first carriage, a mold carried by said first carriage, a second carriage, a mold carried by said second carriage, said mold forming at least a part of a mold cavity, at least one of said carriages movable towards and away from the other and into and out of a casting position, respectively, mechanical means, preferably being of a self-locking type, for positioning said movable mold in said casting position relative to the other mold and for preventing separation thereof during casting, said mechanical means having a mold connecting element arranged on the lower side of the central longitudinal axes of said molds, two groups of yieldable means, such as springs, carried by each carriage, said yieldable means of each group being spaced longitudinally of said molds and each group being located on opposite sides of the longitudinal central axes of said molds, said yieldable means arranged towards the bottom of said casting molds having a substantially larger total resistant capacity than the group of springs arranged toward the top of said casting molds.
  • a further object of the present invention is to provide for each of the aforesaid carriages a flask having at its bottom a mold supporting surface, means for holding the molds with respect to the flasks, said flasks being held in a casting position by said mechanical means, said springs associated with said flasks, and means for prestressing the springs of each group commensurate with the varying degree of deflection imposed upon said casting molds and flask during casting.
  • FIGURE 2 there is illustrated a traversing carriage 10 and a similar but opposed traversing carriage 11. These carriages are provided with wheels 13 and 14 to allow them to be moved towards and away from each other a predetermined distance.
  • the wheels run over two pairs of rails 15 and 16, it being understood that the rails 15 and 16 themselves may, in a given case, be supported by a movable carriage, this carriage being adapted to be brought into the casting station which will include a molten metal pressure vessel.
  • the carriage 11 supports a one-piece flask 17 which extends along the longitudinal axis of the carriage and is supported by projections 17a at the bottom thereof and by a hook 17b at the top.
  • the flask is adapted to support a sectionalized graphite mold 18 which forms one side of the casting cavity, the mold 18 being supported by the flask by reason of a projection 19 arranged at the lower end.
  • the mold in addition is retained from moving relative to the flask by end keeper plates 20, shown only in FIGURE 1,
  • the carriage 10 which, as noted before, is similar generally to the carriage 11. It will be noted, however, with respect to the carriage 10 that it has a somewhat narrower mold 25 which is received in a flask 28, the flask being supported in a way similar to what is described with respect to the flask 17.
  • the flask 28 is also provided with two groups of opposed springs 26 and 27 similar to the springs 23 and 24 of the carriage 11.
  • the top mold 31 which closes the cavity at the top as does a lower mold 32, the lower mold, however, being arranged independent of either carriage 10 or 11.
  • FIGURE 1 The carriages are shown in their operative position, thus in FIGURES 1 and 2 the actual casting cavity is as shown.
  • the carriages are adapted to be held in this position by a mechanical self-locking device which is one of the important aspects of the present invention.
  • FIGURE 1 On both sides of the carriage 11 there are provided worm-wheel units 33 and 34, the worms of which are adapted to be driven by a common motor 35 carried on the carriage 11, which units 33 and 34 have horizontally arranged screws 36 and 37 including enlarged heads which are received and held in boxes 38 and 39.
  • the ratios of the gearings of the worm-wheel units are very high of the order, for example, of :1 which, in combination with the screws having a small thread angle will have the positive advantage of being self-locking under the pressure of the casting process.
  • side molds 18 and 25 are made up in a plurality of pieces which are pressed together longitudinally by tension bolts 43.
  • FIGURE 2 illustrates that the wheels 14 at the front of the carriages 10 and 11 are engaged with brake shoes 44 which are operated by solenoids 45.
  • the solenoid and brakes are provided so that when the casting is completed and the motor is operated to separate the molds, only one of the carriages 10 or 11 will move relative to the other one. Thus, this allows the cast article to be maintained in a fixed relation relative to the equipment employed to remove the casting from the casting machine.
  • One important feature of the present invention is to provide a very stable construction for the carriages 10 and 11 when subject to the forces developed during the casting process. Since the reaction forces are taken in the carriages through the shafts 36 and 37 unless the carriages are constructed properly, there will be an objectionable rotating action imposed thereon. To counteract this, the carriages are each constructed with a longitudinal beam 47, the longitudinal axes of which are below the horizontal axes of the carriage proper and coincide with the axes of shafts 36 and 37. This positions the center of gravity of the carriages toward the bottom thereof and substantially stabilizes the carriages. This offset construction also, as noted above, assists greatly in counteracting the increased pressure condition that is created at the bottom of the molds. In the illustrated form the spacing of the springs 23 and 24 relative to the axes of the beam 47 is at a 2:1 ratio. In another construction where the length of the mold is less, the ratio was fixed at 3:2.
  • each carriage comprises a beam arranged below the longitudinal axes of the carriages, and wherein the axes of said pair of self-locking devices coincide with the longitudinal axes of the beams.
  • said yieldable means comprises springs and wherein said longitudinal axes of said beams are closer to the lower groups of springs than the upper groups.
  • each mold is supported by a flask carried by one of said carriages, and wherein said springs engage said flasks and are arranged between the flasks and the carriages.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Devices For Molds (AREA)
US557089A 1966-06-13 1966-06-13 Mold supporting structure for casting machine Expired - Lifetime US3411567A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US557089A US3411567A (en) 1966-06-13 1966-06-13 Mold supporting structure for casting machine
GB22982/67A GB1151401A (en) 1966-06-13 1967-05-17 Casting Apparatus
AT516767A AT274269B (de) 1966-06-13 1967-06-02 Vorrichtung zum Gießen von Gegenständen
SE7757/67A SE316579B (de) 1966-06-13 1967-06-02
FR109156A FR1525696A (fr) 1966-06-13 1967-06-05 Perfectionnement aux structures de support de moules des machines à mouler sous pression
DE19671558354 DE1558354B1 (de) 1966-06-13 1967-06-07 Giessvorrichtung
BE699620D BE699620A (de) 1966-06-13 1967-06-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US557089A US3411567A (en) 1966-06-13 1966-06-13 Mold supporting structure for casting machine

Publications (1)

Publication Number Publication Date
US3411567A true US3411567A (en) 1968-11-19

Family

ID=24224008

Family Applications (1)

Application Number Title Priority Date Filing Date
US557089A Expired - Lifetime US3411567A (en) 1966-06-13 1966-06-13 Mold supporting structure for casting machine

Country Status (6)

Country Link
US (1) US3411567A (de)
AT (1) AT274269B (de)
BE (1) BE699620A (de)
DE (1) DE1558354B1 (de)
GB (1) GB1151401A (de)
SE (1) SE316579B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646991A (en) * 1970-06-22 1972-03-07 Armsted Ind Inc Top block shift
US3873058A (en) * 1972-03-28 1975-03-25 Stelmo Limited Moulding apparatus
US3899017A (en) * 1972-08-25 1975-08-12 Ass Elect Ind Apparatus and method for electroslag remelting
US3948311A (en) * 1974-06-13 1976-04-06 Massachusetts Institute Of Technology Apparatus for casting metal slabs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705783A (en) * 1985-06-25 1987-11-10 Sri International 9α, 11β-substituted and 11β-substituted estranes
FR2642680B1 (fr) * 1989-01-16 1993-06-18 Creusot Loire Moule de coulee sous pression de produits plats metalliques tels que des brames

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700341A (en) * 1929-01-29 Casting machine
US1872085A (en) * 1930-09-09 1932-08-16 Madison Kipp Corp Die casting machine
US2756473A (en) * 1954-05-05 1956-07-31 Int Harvester Co Mold-supporting means for shell molding
US2921355A (en) * 1954-11-10 1960-01-19 Buffalo Pottery Inc Method and means for molding
US3159875A (en) * 1961-06-30 1964-12-08 Springfield Cast Products Inc Automatic molding press

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915616C (de) * 1939-04-13 1954-07-26 Ver Leichtmetall Werke Ges Mit Vorrichtung zum Giessen von Metallbloecken
US3188703A (en) * 1962-08-08 1965-06-15 Kelsey Hayes Co Apparatus for low pressure permanent mold casting
US3186039A (en) * 1962-09-26 1965-06-01 Amsted Res Lab Casting ingate arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1700341A (en) * 1929-01-29 Casting machine
US1872085A (en) * 1930-09-09 1932-08-16 Madison Kipp Corp Die casting machine
US2756473A (en) * 1954-05-05 1956-07-31 Int Harvester Co Mold-supporting means for shell molding
US2921355A (en) * 1954-11-10 1960-01-19 Buffalo Pottery Inc Method and means for molding
US3159875A (en) * 1961-06-30 1964-12-08 Springfield Cast Products Inc Automatic molding press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646991A (en) * 1970-06-22 1972-03-07 Armsted Ind Inc Top block shift
US3873058A (en) * 1972-03-28 1975-03-25 Stelmo Limited Moulding apparatus
US3899017A (en) * 1972-08-25 1975-08-12 Ass Elect Ind Apparatus and method for electroslag remelting
US3948311A (en) * 1974-06-13 1976-04-06 Massachusetts Institute Of Technology Apparatus for casting metal slabs

Also Published As

Publication number Publication date
GB1151401A (en) 1969-05-07
AT274269B (de) 1969-09-10
BE699620A (de) 1967-12-07
DE1558354B1 (de) 1971-03-18
SE316579B (de) 1969-10-27

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP.OF OH;REEL/FRAME:004458/0765

Effective date: 19850610