US2512871A - Core blowing machine - Google Patents

Core blowing machine Download PDF

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Publication number
US2512871A
US2512871A US528608A US52860844A US2512871A US 2512871 A US2512871 A US 2512871A US 528608 A US528608 A US 528608A US 52860844 A US52860844 A US 52860844A US 2512871 A US2512871 A US 2512871A
Authority
US
United States
Prior art keywords
sand
core
cartridge
core box
air
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
US528608A
Other languages
English (en)
Inventor
Ostermann Otto
Blendin Ernst
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.)
Redford Iron & Equipment Co
Redford Iron & Equipment Compa
Original Assignee
Redford Iron & Equipment Compa
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 to BE475265D priority Critical patent/BE475265A/xx
Application filed by Redford Iron & Equipment Compa filed Critical Redford Iron & Equipment Compa
Priority to US528608A priority patent/US2512871A/en
Priority to FR941193D priority patent/FR941193A/fr
Priority to GB10403/46A priority patent/GB618436A/en
Application granted granted Critical
Publication of US2512871A publication Critical patent/US2512871A/en
Priority to DER3162A priority patent/DE829772C/de
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
    • B22C15/23—Compacting by gas pressure or vacuum
    • B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles

Definitions

  • This invention relates to aimethod-and apparams for blowingcores:
  • the sandcartridgeian-d'the core box openingapanning base is ametaiishell', that can be made: of welded metal partsorof a casting Inste'adofther usual raising of the core box support mechanically or f by fluid pressure, our machine provides axstationary core box support whi'ehimay rest directly onthe work bench. The relative: movement to" bring the air. supply, the
  • Fig. 1 is a- Side:].-Vati0lil of the machine show- .ll'lggthe sand container and the core' box partly broken away;
  • This valve has a pilotisleeve 14 for guidingit in the opening in the interiorly threaded cap IT at the end of the cylinder.
  • the valve has. aflange l8kwith perforationsplfis
  • the flange is: arranged to. seat on the gasket 2i at the lowerend ofithe cylinder and .isheldi in Jth-iSJDO- sition by the air pressure and also by: the helical 3 spring 2!. pressing down on the lever 22, this allows the air blast to pass through the openings l9 and the openings 23.
  • a valve stem 24 connects the valve with the lever 22.
  • a suitable diameter for the tubu- 'sand in the base of the cartridge forms a protective plug ofv solid sand to protect the contents of the core box and the core box against the blast of high pressure air. If a suitable protecting' plug is not afi'orded the air blows through the bottom of the sand reservoir or cartridge and tributing head and exchanged for another plate 7 with openings suitably located to register with the openings in the new type of core box.
  • the machine parts may have to be rearranged or adjusted to take a difierently shaped core box of perhaps different height.
  • a sand holding cartridge for interposition between an air discharge reservoir having a discharge port controlled by an air valve and a core box and supporting platform of a machine for blowing cores, said cartridge comprising a chargeholding columnar body portion and having a capacity to contain substantially only a charge for one core box blow, and a hollow sand-distributing base portion expanding the cartridge abruptly at the end of the body portion and serving to span the core box and blow holes therein, said base portion having in its bottom blow holes to register with the blow holes in the core box and having a limited thickness, the cartridge, when viewed in side elevation, or in longitudinal section, being of substantially inverted T shape, the body forming the upright bar of the T and the hollow base the cross bar of the T, with the base of the cartridge or the cross bar of the T of substantially less thickness than the body of the cartridge or upright of the T.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
US528608A 1944-03-29 1944-03-29 Core blowing machine Expired - Lifetime US2512871A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE475265D BE475265A (enrdf_load_stackoverflow) 1944-03-29
US528608A US2512871A (en) 1944-03-29 1944-03-29 Core blowing machine
FR941193D FR941193A (fr) 1944-03-29 1946-03-26 Machine à mouler pneumatiquement les noyaux
GB10403/46A GB618436A (en) 1944-03-29 1946-04-04 Apparatus for blowing sand into foundry core boxes
DER3162A DE829772C (de) 1944-03-29 1950-07-25 Kernblasmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US528608A US2512871A (en) 1944-03-29 1944-03-29 Core blowing machine

Publications (1)

Publication Number Publication Date
US2512871A true US2512871A (en) 1950-06-27

Family

ID=24106399

Family Applications (1)

Application Number Title Priority Date Filing Date
US528608A Expired - Lifetime US2512871A (en) 1944-03-29 1944-03-29 Core blowing machine

Country Status (5)

Country Link
US (1) US2512871A (enrdf_load_stackoverflow)
BE (1) BE475265A (enrdf_load_stackoverflow)
DE (1) DE829772C (enrdf_load_stackoverflow)
FR (1) FR941193A (enrdf_load_stackoverflow)
GB (1) GB618436A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911691A (en) * 1955-08-29 1959-11-10 Edwin F Peterson Spray head core box blow tube
US2928147A (en) * 1955-12-23 1960-03-15 Hansberg Fritz Agitatorless foundry shooting device
US3291875A (en) * 1964-01-20 1966-12-13 Temp Tainer Corp Method for forming plastic items
US3989089A (en) * 1973-09-21 1976-11-02 Hitachi Metals, Ltd. Hollow core molding device for use in shell mold

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1064696B (de) * 1952-08-29 1959-09-03 Masch U Werkzeugfabrik Kabel Kernschussautomat mit auswechselbarem Einsatz im Sandbehaelter
DE1097622B (de) * 1953-12-31 1961-01-19 Dietrich Pulvermacher Verfahren und Vorrichtung zum gleichmaessigen Verdichten des Formsandes in Pressformmaschinen
BE551244A (enrdf_load_stackoverflow) * 1955-11-30
DE1159132B (de) * 1960-05-04 1963-12-12 John Deere Lanz Ag Kern- und Formblasmaschine
CN109458902B (zh) * 2018-12-20 2020-01-14 安徽江淮汽车集团股份有限公司 一种气门座圈密封面宽度检具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1447376A (en) * 1921-03-21 1923-03-06 Robert B Campell Pneumatic sand hopper
US1594598A (en) * 1922-09-28 1926-08-03 Donald J Campbell Air-operated molding apparatus
US1703708A (en) * 1926-12-27 1929-02-26 Earl Holley Core-making machine
US1808630A (en) * 1930-02-27 1931-06-02 Packard Motor Car Co Core forming mechanism
US1927571A (en) * 1931-03-16 1933-09-19 Frederick S Meyer Dental casting machine
US1950632A (en) * 1931-09-10 1934-03-13 Packard Motor Car Co Core forming mechanism
US1994028A (en) * 1929-12-16 1935-03-12 Osborn Mfg Co Molding apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1447376A (en) * 1921-03-21 1923-03-06 Robert B Campell Pneumatic sand hopper
US1594598A (en) * 1922-09-28 1926-08-03 Donald J Campbell Air-operated molding apparatus
US1703708A (en) * 1926-12-27 1929-02-26 Earl Holley Core-making machine
US1994028A (en) * 1929-12-16 1935-03-12 Osborn Mfg Co Molding apparatus
US1808630A (en) * 1930-02-27 1931-06-02 Packard Motor Car Co Core forming mechanism
US1927571A (en) * 1931-03-16 1933-09-19 Frederick S Meyer Dental casting machine
US1950632A (en) * 1931-09-10 1934-03-13 Packard Motor Car Co Core forming mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911691A (en) * 1955-08-29 1959-11-10 Edwin F Peterson Spray head core box blow tube
US2928147A (en) * 1955-12-23 1960-03-15 Hansberg Fritz Agitatorless foundry shooting device
US3291875A (en) * 1964-01-20 1966-12-13 Temp Tainer Corp Method for forming plastic items
US3989089A (en) * 1973-09-21 1976-11-02 Hitachi Metals, Ltd. Hollow core molding device for use in shell mold

Also Published As

Publication number Publication date
GB618436A (en) 1949-02-22
FR941193A (fr) 1949-01-04
BE475265A (enrdf_load_stackoverflow)
DE829772C (de) 1952-01-28

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