US3682231A - Sandslinger head - Google Patents

Sandslinger head Download PDF

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Publication number
US3682231A
US3682231A US110000A US3682231DA US3682231A US 3682231 A US3682231 A US 3682231A US 110000 A US110000 A US 110000A US 3682231D A US3682231D A US 3682231DA US 3682231 A US3682231 A US 3682231A
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US
United States
Prior art keywords
housing
head
rotor
mixture
roller
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
US110000A
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English (en)
Inventor
Grigory Semenovich Taburinsky
Eduard Mikhailovich Gutterman
Arnold Izrailevich Fain
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
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Publication of US3682231A publication Critical patent/US3682231A/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
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/20—Compacting by centrifugal forces only, e.g. in sand slingers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G31/00—Mechanical throwing machines for articles or solid materials
    • B65G31/04—Mechanical throwing machines for articles or solid materials comprising discs, drums, or like rotary impellers

Definitions

  • the invention relates to heads for sand slingers used for ramming molding mixtures in foundry practice, to produce foundry molds and cores, as well as for depositing the lining of pouring ladles and steel molds.
  • a slinger head provided with a tangential supply of the mixture to the rotor, which is used in cantilever-type hose-fed sand slingers for ramming the mixture in making molds and cores. It has a housing in which is enclosed a rotor equipped with a bucket. In the housing, there is a charging hole for the tangential supply of the mixture to the rotor, and a hole for the ejection of mixture with the ejection hole being located opposite the charging hole. Inside the housing, in the path of rotation of the rotor and past or beyond the charging hole, there is mounted a curved guide for directing the mixture from the head through the appropriate hole. Fixed between the charging hole and the curved guide is a heated plate designed to eliminate the adhesion of the mixture in the zone of the charging hole.
  • the mixture is fed into the head through the charging hole and during rotation of the rotor, the mix is captured by the bucket, formed into wads, and through the ejection hole enters into the molding volume.
  • An object of the present invention is to eliminate the disadvantages.
  • the basic object of the invention is to provide a sandslinger head, which features high productivity, is usable with mixtures of high adhesiveness, and at the same time is more reliable and economical in operation.
  • a sandslinger head comprising a rotor provided with a bucket enclosed in a housing, with the housing having on one side a charging hole for supplying the mixture tangentially to the rotor, and on the opposite side, a hole for ejecting the mixture, together with a curved guide fixed on the inside of the housing past the charging hole in the direction of rotation of the rotor, and serving to direct the mixture ejection from the sandslinger head, wherein, according to the invention, between the charging hole and the curved guide there is mounted a roller the periphery of which protrudes inward of the housing, and a drive for rotating the roller about an axis parallel to that of rotation of the rotor.
  • the present slinger head is not jammed with the mixture, features higher productivity, and the use of mixtures of high adhesiveness, since the rotating roller prevents the adhesion of the mixture particles in the zone of the charging hole, and discharges such particles in the direction of the rotor rotation.
  • FIG. 1 is a view taken along line IIII of FIG. 2, the view looking in the direction of the arrows;
  • FIG. 2 is an end elevational view of the head illustrated in FIG. 1.
  • the sandslinger head includes a housing 1 in which a rotor 2 having a bucket 3 fixed thereon by a bolt 4 is enclosed.
  • the rotor 2 is connected with a drive source 5 through a shaft 6 and a key 7.
  • the housing 1 has a charging hole 8 for supplying the mixture tangentially to rotor 2, and a hole 9 for ejecting the mixture from the slinger head.
  • a cover 10 secured to the housing 1 by a hinge 11 and a fastening bolt 12, which allows rapid replacement of the worn components of the slinger head.
  • bolts 13 and 14 hold a curved guide 15 serving to direct the mixture ejection from the slinger head.
  • roller 16 Between the charging hole 8 and the curved guide 15 there is mounted a roller 16, the periphery of which protrudes inward of the housing 1, and a drive 17 provides for rotation of the roller about an axis parallel to the axis of the rotation of rotor 2.
  • the roller 16 is connected with the drive 17 through a shaft 18 and a key 19.
  • the slinger head operates as follows:
  • the mixture is supplied into the charging hole 8 of the housing 1 and the mix located in the zone of rotation of the bucket 3 is captured thereby, drawn along the curved guide 15, and ejected in separate wads into the molding volume.
  • the roller 16 is rotated by the drive 17 in a direction opposite to the rotation of the rotor 2. It is also possible to rotate the roller 16 in the same direction, as rotor 2, but this is not quite as satisfactory.
  • Tests of the present slinger head have proven its full operability when using mixtures with high adhesiveness productivity rate (up to 50 mlhour), and a bucket width of from 63 to 600 mm.
  • a sandslinger head comprising: a housing; a rotor provided with a bucket mounted in said housing; a drive operably connected to the rotor for rotating said rotor; said housing having a charging hole for supplying mixture tangentially to said rotor, and a hole for ejecting the mixture, said ejecting hole being located opposite said charging hole; a curved guide fixed on the inner side of said housing past said charging hole along the direction of rotation of said rotor, said guide serving todirect the mixture ejection from said slinger head; a roller having its peripheral surface protruding inward of said housing, said roller having an axis of rotation parallel to that of said rotor, said roller being mounted on said housing between said charging hole and said curved guide, and a drive operably connected to said roller to impart rotation thereto.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US110000A 1971-01-27 1971-01-27 Sandslinger head Expired - Lifetime US3682231A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11000071A 1971-01-27 1971-01-27
DE2105429A DE2105429C3 (de) 1971-01-27 1971-02-05 Sandschleuderkopf für GieBereizwecke
FR7104429A FR2124166B1 (enrdf_load_stackoverflow) 1971-01-27 1971-02-10
GB9342/71A GB1273519A (en) 1971-01-27 1971-04-14 Sandslinger head

Publications (1)

Publication Number Publication Date
US3682231A true US3682231A (en) 1972-08-08

Family

ID=27431202

Family Applications (1)

Application Number Title Priority Date Filing Date
US110000A Expired - Lifetime US3682231A (en) 1971-01-27 1971-01-27 Sandslinger head

Country Status (4)

Country Link
US (1) US3682231A (enrdf_load_stackoverflow)
DE (1) DE2105429C3 (enrdf_load_stackoverflow)
FR (1) FR2124166B1 (enrdf_load_stackoverflow)
GB (1) GB1273519A (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1533383A (en) * 1922-11-13 1925-04-14 Donald J Campbell Molding-sand-handling machine
CH294072A (de) * 1951-01-19 1953-10-31 Ag A Stotz Turbo-Sandschleuder mit innen beaufschlagtem Schaufelrad.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1527765A (en) * 1921-10-12 1925-02-24 Walter H Wangelin Molding machine
FR640685A (fr) * 1927-09-08 1928-07-19 Ph Bonvillain Sa Des Ets Machine à serrer le sable par projection
BE351657A (enrdf_load_stackoverflow) * 1928-05-22 1928-06-30

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1533383A (en) * 1922-11-13 1925-04-14 Donald J Campbell Molding-sand-handling machine
CH294072A (de) * 1951-01-19 1953-10-31 Ag A Stotz Turbo-Sandschleuder mit innen beaufschlagtem Schaufelrad.

Also Published As

Publication number Publication date
FR2124166A1 (enrdf_load_stackoverflow) 1972-09-22
GB1273519A (en) 1972-05-10
DE2105429B2 (de) 1974-05-02
DE2105429A1 (de) 1972-08-24
DE2105429C3 (de) 1975-01-02
FR2124166B1 (enrdf_load_stackoverflow) 1976-03-19

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