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US2611938A - Machine for ramming foundry cores by means of compressed air - Google Patents

Machine for ramming foundry cores by means of compressed air Download PDF

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Publication number
US2611938A
US2611938A US121485A US12148549A US2611938A US 2611938 A US2611938 A US 2611938A US 121485 A US121485 A US 121485A US 12148549 A US12148549 A US 12148549A US 2611938 A US2611938 A US 2611938A
Authority
US
United States
Prior art keywords
compressed air
valve
chamber
sand
machine
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
US121485A
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English (en)
Inventor
Hansberg Fritz
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.)
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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 US2611938A publication Critical patent/US2611938A/en
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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

  • the present invention relatesto a machine f -or introducing and tamping casting sand into care moulds in order quickly to obtain the formation of cores to be introduced into the castings.
  • the machine according to; theinvention is essentially composed of a hollow body adapted to contain the casting sand and provided with one or more discharge months for discharging in the direction of a support for core moulds; compressed air is introduced into said hollow body by means of a conduit, which is connected there: to through a valvehaving alarge aperture-andbeing quickly operable, which valvegmay-bepreceded by another valve for adjustable throttling,- which latter valve has a smaller aperture than the first valve.
  • the inachine - is'composed of a hollow standard or column I, whose inner cavity acts as a compressed air receiver-or storage tank.
  • a hollow standard or column I whose inner cavity acts as a compressed air receiver-or storage tank.
  • the cylindrical body 3 constituting the said storage tank; the walls of I the cavity of the body 3 a're-lined-with a p'erfo rated metal liner 4 which forms-an annular channel with the cylinder wall.
  • the lower head5 of the cylinder 3 comprises a conical part 6 termmated by a central hole forming the seat for a replaceable nozzle 1'. Outside the cone 6, the head 5'com'prises a charn-ber 8 open inside by wayof a plurality of holes 9 covered by a metal wire gauze: ornetwork- Ill;
  • the bracket 2 carrying the cylinder 3 is rotatable about the standard l and can be locked at the top against a head H containing a conduit [2, which is in communication with the cylinder 3 by way of a comparatively wide valve l3, and with the inside of the standard I by Way of a valve having smaller dimensions l4.
  • Valve 13 is extended to form a irusto-conical guide member 13 which together with the upper conical section 3' of the sand chamber provides an annular channel aligned so as to direct compressed air into the channel between cylinder 3 and liner 4.
  • the valve [3 is controlled by means of a servomotor Whose piston 15 is pushed by the com- 2 pressed air entering. through the aperture l6 comtrolled by a suitable valve not represented in the drawing.
  • valve I4 is controlled t means' of the hand-'- whee screw n so thatits aperture can be ad justed at any time as needed.
  • abra'cket l8 iasteried to the standard 1 supports a corej niculd carry ingplate' (9,, which sway of astem 20 integral or rigidly connected w til 2% piston if, :w ich too is displaceabl by means of compressed air so as to 1m the core-mould carrying plate 9 against the cylinder a":
  • v U r V th 22 are indicated paekm'gsfof elastic ma terial' and with 23 is indicated a spring reacting against "the piston l5.
  • V r I operation or the machine is as follows: i
  • a core blowing machine employing compressed air, comprising in combination a frame structure including a substantially tubular vertically disposed sand chamber, one end of said chamber forming a narrow nozzle for discharging sand into a core box and theother end a wider air inlet opening for admitting compressed air into the sand chamber, a tubular lining member including transverse openings therethrough dis- 1.
  • a core blowing machine employing compressed air comprising in combination a frame structure including a sand chamber having a wide air inlet opening and a narrow sand outlet opening, valve means disposed in said inlet opening for controlling the admission of compressed air into said chamber, valve control means for opening and closing said valve means, and a lining member including a plurality of transverse openings therethrough disposed within said sand chamber spaced apart from the chamber wall and open ended at the side facing the valve means, said valve means including a valve body and a guide member mounted on the side of said valve body facing the said chamber and movable in unison with the valve body, said guide member being shaped and positioned relative to the space between the chamber wall and the lining member so as to direct compressed air into the said space and to provide space for the flow of compressed air into the sand chamber upon opening of said valve means.
  • a core blowing machine employing compressed air, comprising in combination a frame structure including a substantially tubular vertically disposed sand chamber, one end of said chamber forming a narrow nozzle for discharging sandinto a core box and the other end a wider,
  • valve means for controlling the'rate of flow of compressed air, valve control means for opening and closing said valve means, said valve means including a valve body seated on said inlet opening and a guide member secured to'the valve bodyon the side thereof facing the sand chamber, said guide member being shaped and positioned to direct compressed air into said annular. channel and to provide space for the posed within said sand chamber concentrically therewith and spaced apart from the wall of the chamber so as to form an annular open channel between the lining member and the chamber wall,
  • said sandchamber having a substantially frustoconical section positioned above said lining member, the narrow end of said section including said inlet opening, and valve means for controlling the rate of flow of compressed air through said inlet opening, valve control means opening and closing said valve means, said valve means including a valve body' seated on said inlet opening and a guide member secured to the valve body on the side'thereof facing the sand chamber and the lining-member therein, said guide member having a substantial frusto-conical shape and being positioned within said' conical section so as to form 'a secondannular channel therewith, said latter channel being aligned so as to direct compressed air into the annular channel formed by the lining member and the tubular section of the sand chamber upon opening of the valve means, a space being interposed between the adiacent ends of theguide member and the lining member so-asto" provide for a flow of compressed air leaving said second channel into said tubular sectionof the sand chamber upon opening of the valve means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
US121485A 1949-06-15 1949-10-15 Machine for ramming foundry cores by means of compressed air Expired - Lifetime US2611938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT283131X 1949-06-15

Publications (1)

Publication Number Publication Date
US2611938A true US2611938A (en) 1952-09-30

Family

ID=11223342

Family Applications (1)

Application Number Title Priority Date Filing Date
US121485A Expired - Lifetime US2611938A (en) 1949-06-15 1949-10-15 Machine for ramming foundry cores by means of compressed air

Country Status (6)

Country Link
US (1) US2611938A (de)
BE (1) BE501299A (de)
CH (1) CH283131A (de)
DE (2) DE972225C (de)
FR (1) FR1027473A (de)
GB (1) GB672487A (de)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779071A (en) * 1952-05-08 1957-01-29 Fed Foundry Supply Company Control system for sand blowing apparatus
US2793408A (en) * 1951-02-23 1957-05-28 Axel H Peterson Valve for core blowing machine
US2793409A (en) * 1954-02-16 1957-05-28 Hansberg Fritz Machine for the production of foundry cores and foundry moulds using compressed air
US2842815A (en) * 1956-05-11 1958-07-15 Kiekhaefer Corp Machine for injecting sand into core molds
US2852818A (en) * 1954-11-26 1958-09-23 Shalco Engineering Corp Core blowing machine for making shell molds
US2879922A (en) * 1956-11-26 1959-03-31 Clarence W Vogt Equipment for compacting comminuted materials or the like
US2928147A (en) * 1955-12-23 1960-03-15 Hansberg Fritz Agitatorless foundry shooting device
US2949711A (en) * 1956-07-02 1960-08-23 Clarence W Vogt Method and apparatus for filling containers
US2957284A (en) * 1957-11-12 1960-10-25 Bartelt Engineering Co Packaging mechanism
US2974452A (en) * 1956-07-23 1961-03-14 Clarence W Vogt Method for forming and filling packages
US2981298A (en) * 1958-07-21 1961-04-25 Clarence W Vogt Method and equipment for filling open mouth receptacles with pulverulent material
US3045717A (en) * 1958-08-29 1962-07-24 Clarence W Vogt Method and apparatus for preparing measured charges of material and dispensing them ito cavities
US3058498A (en) * 1958-11-25 1962-10-16 Clarence W Vogt Continuous feeding mechanism for filling apparatus
US3063477A (en) * 1958-02-07 1962-11-13 Clarence W Vogt Method and apparatus for filling containers
US3089206A (en) * 1958-01-13 1963-05-14 Osborn Mfg Co Blow and squeeze molding machine and method of molding
US3164649A (en) * 1962-03-28 1965-01-05 Chisholm Boyd & White Company Method of forming high density masses of pulverulent material
US3179134A (en) * 1962-02-02 1965-04-20 Sigrist Robert Pneumatic filling apparatus for expanded polystyrene
US3211190A (en) * 1963-06-05 1965-10-12 Clarence W Vogt Method of packaging pulverulent material
US3217364A (en) * 1960-05-30 1965-11-16 Saint Gobain Apparatus for injecting granular material into a mold
US3328852A (en) * 1964-10-16 1967-07-04 Osborn Mfg Co Foundry sand forming machines
US3963459A (en) * 1972-10-04 1976-06-15 Norton Company Blow molding process for manufacturing grinding wheels
US3989086A (en) * 1973-09-26 1976-11-02 Erwin Buhrer Method of and apparatus for the production of mold parts for foundries
USRE29592E (en) * 1972-10-04 1978-03-28 Norton Company Blow molding process for manufacturing grinding wheels
US4570694A (en) * 1982-01-25 1986-02-18 Lund Robert S Mold-blowing apparatus
US4643240A (en) * 1984-04-12 1987-02-17 Pettibone Corporation Method of blowing cores etc. using quick-set sand, and improved mold-blowing apparatus
DK153634B (da) * 1975-12-05 1988-08-08 Fomes Sa Blaesehoved til indblaesning af sand i forme til fremstilling af stoebekerner.
US5749401A (en) * 1995-10-12 1998-05-12 Minolta Co., Ltd. Powder filling method
US20090188580A1 (en) * 2008-01-29 2009-07-30 Himmen Hans-Rudolf Inert gas lock for filling a container with bulk material

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060106B (de) * 1953-06-24 1959-06-25 Deutsche Edelstahlwerke Ag Sandblasemaschine zur Herstellung von Kernen, Formmasken u. dgl. fuer Giessereizwecke
DE1162033B (de) * 1959-12-21 1964-01-30 Fritz Hansberg Schiessmaschine zur Herstellung von Giessereiformen und Giessereikernen sowie von Rohren od. dgl. aus bildsamen Massen
US3229336A (en) * 1963-04-29 1966-01-18 Pettibone Mulliken Corp Match plate molding machine for the simultaneous production of cope and drag mold sections
FR2311613A1 (fr) * 1975-05-21 1976-12-17 Fomes Sa Injecteur de sable pour moules pour la realisation de noyaux de fonderie
US4460032A (en) * 1982-01-25 1984-07-17 Pettibone Corporation Method and apparatus for blowing cores etc. using a plunger-cleaned blow box suitable for quick-set sand
DE3318150C2 (de) * 1983-05-18 1985-07-11 Vsesojuznyj zaočnyj politechničeskij institut, Moskva Arbeitsbehälter für Blas- und Sandschießmaschinen
FR2546088B1 (fr) * 1983-05-19 1986-07-11 Zaochny Politekhn Institu Reservoir de travail pour machines a souffler et a tirer les moules et les noyaux de fonderie
DE3626994C1 (de) * 1986-08-08 1987-12-10 Joachim Dipl-Ing Laempe Einschiessvorrichtung an einer Kernschiessmaschine
DE3725177C2 (de) * 1986-08-12 1997-02-13 Arana Erana Agustin Schießkopf für eine Gießkernschießmaschine
ES2012263A6 (es) * 1989-02-10 1990-03-01 Erana Agustin Arana Mejoras introducidas en la patente de invencion 8702409 por mecanismo de disparo para maquinas disparadoras de machos.
DE9109886U1 (de) * 1991-08-09 1992-09-03 IMG - Industriemontage GmbH, 4232 Xanten Schießkopf für kalt härtende Sande
DE4208647C2 (de) * 1992-03-18 1995-06-29 Hottinger Adolf Masch Vorrichtung zum Schießen von Gießereikernen oder -formen mit Formstoffen
US7144179B2 (en) 2000-01-26 2006-12-05 Fusion Specialties, Inc. Display form having magnetically attachable parts

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1022363A (en) * 1911-04-24 1912-04-02 Philip B Harrison Core-box-clamping machine.
US1086824A (en) * 1908-10-05 1914-02-10 Maddra Jackson Hewlett Molding apparatus.
US1447376A (en) * 1921-03-21 1923-03-06 Robert B Campell Pneumatic sand hopper
CH154245A (de) * 1931-05-18 1932-04-30 Fischer Ag Georg Verfahren zum Einbringen von Sand in Formen.
DE557503C (de) * 1931-02-08 1932-08-24 Masch U Werkzeugfabrik Kabel Verfahren und Formmaschine zum Fuellen von Form- und Kernkaesten mit Formsand durch Druckluft
US1950632A (en) * 1931-09-10 1934-03-13 Packard Motor Car Co Core forming mechanism
DE657498C (de) * 1938-03-05 Albertuswerke G M B H Sandblaseformmaschine zum Herstellen kastenloser Formen
US2259768A (en) * 1940-05-09 1941-10-21 Champion Foundry And Machine C Core making machine
US2300148A (en) * 1940-07-27 1942-10-27 Osborn Mfg Co Mold and core blowing machine
US2490559A (en) * 1946-07-06 1949-12-06 Taccone Pneumatic Foundry Equi Core blowing machine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE549636C (de) * 1932-04-29 Eclairage Des Voies Publiques Vorrichtung zum Aufhaengen von Laternen an einem Rohr
DE629911C (de) * 1936-05-16 Albert Stahn Formmaschine zum Fuellen von Form- oder Kernkaesten mit Fomsand
US1595600A (en) * 1923-09-14 1926-08-10 Mold-making machine
DE479521C (de) * 1927-09-15 1929-07-18 Emil Schlechte Sandblasmaschine zum Fuellen von Formkaesten, bei der die Luftduese axial in das Sandrohr muendet
DE524373C (de) * 1929-07-31 1931-05-06 Albert Stahn Verfahren und Formmaschine zum Fuellen von Form- oder Kernkaesten mit Formsand
BE373002A (de) * 1929-07-31
DE549630C (de) * 1930-07-12 1932-04-29 Masch U Werkzeugfabrik Kabel Sandblaseformmaschine
DE544268C (de) * 1930-08-21 1932-02-16 Badische Maschinenfabrik & Eis Druckluftblasemaschine zur Herstellung von Sandkernen o. dgl.
DE548882C (de) * 1930-11-25 1932-04-21 Zimmermann Gustav Sandblaseformmaschine
DE543832C (de) * 1931-02-06 1932-02-15 Masch U Werkzeugfabrik Kabel Sandblaseformmaschine
DE705953C (de) * 1940-05-04 1941-05-14 Meier & Weichelt Eisen Und Sta Verfahren und Einrichtung zum Ausblasen von Formsand aus Behaeltern bei Formmaschinen u. dgl.
DE712914C (de) * 1940-12-13 1941-10-28 J D Brackelsberg Giesserei Fue Sandblaseformmaschine
FR898853A (fr) * 1942-11-06 1945-05-09 Dispositif d'alimentation automatique en sable pour machines à mouler et à noyauter à projection de sable
DE860395C (de) * 1942-11-06 1952-12-22 Kabel Vogel & Schemmann Ag Selbsttaetige Sandzubringung an Form- und Kernblasmaschinen
AT169113B (de) * 1948-10-15 1951-10-10 Walter Dipl Ing Schemmann Kern- und Formblasmaschine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE657498C (de) * 1938-03-05 Albertuswerke G M B H Sandblaseformmaschine zum Herstellen kastenloser Formen
US1086824A (en) * 1908-10-05 1914-02-10 Maddra Jackson Hewlett Molding apparatus.
US1022363A (en) * 1911-04-24 1912-04-02 Philip B Harrison Core-box-clamping machine.
US1447376A (en) * 1921-03-21 1923-03-06 Robert B Campell Pneumatic sand hopper
DE557503C (de) * 1931-02-08 1932-08-24 Masch U Werkzeugfabrik Kabel Verfahren und Formmaschine zum Fuellen von Form- und Kernkaesten mit Formsand durch Druckluft
CH154245A (de) * 1931-05-18 1932-04-30 Fischer Ag Georg Verfahren zum Einbringen von Sand in Formen.
US1950632A (en) * 1931-09-10 1934-03-13 Packard Motor Car Co Core forming mechanism
US2259768A (en) * 1940-05-09 1941-10-21 Champion Foundry And Machine C Core making machine
US2300148A (en) * 1940-07-27 1942-10-27 Osborn Mfg Co Mold and core blowing machine
US2490559A (en) * 1946-07-06 1949-12-06 Taccone Pneumatic Foundry Equi Core blowing machine

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793408A (en) * 1951-02-23 1957-05-28 Axel H Peterson Valve for core blowing machine
US2779071A (en) * 1952-05-08 1957-01-29 Fed Foundry Supply Company Control system for sand blowing apparatus
US2793409A (en) * 1954-02-16 1957-05-28 Hansberg Fritz Machine for the production of foundry cores and foundry moulds using compressed air
US2852818A (en) * 1954-11-26 1958-09-23 Shalco Engineering Corp Core blowing machine for making shell molds
US2928147A (en) * 1955-12-23 1960-03-15 Hansberg Fritz Agitatorless foundry shooting device
US2842815A (en) * 1956-05-11 1958-07-15 Kiekhaefer Corp Machine for injecting sand into core molds
US2949711A (en) * 1956-07-02 1960-08-23 Clarence W Vogt Method and apparatus for filling containers
US2974452A (en) * 1956-07-23 1961-03-14 Clarence W Vogt Method for forming and filling packages
US2879922A (en) * 1956-11-26 1959-03-31 Clarence W Vogt Equipment for compacting comminuted materials or the like
US2957284A (en) * 1957-11-12 1960-10-25 Bartelt Engineering Co Packaging mechanism
US3089206A (en) * 1958-01-13 1963-05-14 Osborn Mfg Co Blow and squeeze molding machine and method of molding
US3063477A (en) * 1958-02-07 1962-11-13 Clarence W Vogt Method and apparatus for filling containers
US2981298A (en) * 1958-07-21 1961-04-25 Clarence W Vogt Method and equipment for filling open mouth receptacles with pulverulent material
US3045717A (en) * 1958-08-29 1962-07-24 Clarence W Vogt Method and apparatus for preparing measured charges of material and dispensing them ito cavities
US3058498A (en) * 1958-11-25 1962-10-16 Clarence W Vogt Continuous feeding mechanism for filling apparatus
US3217364A (en) * 1960-05-30 1965-11-16 Saint Gobain Apparatus for injecting granular material into a mold
US3179134A (en) * 1962-02-02 1965-04-20 Sigrist Robert Pneumatic filling apparatus for expanded polystyrene
US3164649A (en) * 1962-03-28 1965-01-05 Chisholm Boyd & White Company Method of forming high density masses of pulverulent material
US3211190A (en) * 1963-06-05 1965-10-12 Clarence W Vogt Method of packaging pulverulent material
US3328852A (en) * 1964-10-16 1967-07-04 Osborn Mfg Co Foundry sand forming machines
US3963459A (en) * 1972-10-04 1976-06-15 Norton Company Blow molding process for manufacturing grinding wheels
USRE29592E (en) * 1972-10-04 1978-03-28 Norton Company Blow molding process for manufacturing grinding wheels
US3989086A (en) * 1973-09-26 1976-11-02 Erwin Buhrer Method of and apparatus for the production of mold parts for foundries
DK153634B (da) * 1975-12-05 1988-08-08 Fomes Sa Blaesehoved til indblaesning af sand i forme til fremstilling af stoebekerner.
US4570694A (en) * 1982-01-25 1986-02-18 Lund Robert S Mold-blowing apparatus
US4643240A (en) * 1984-04-12 1987-02-17 Pettibone Corporation Method of blowing cores etc. using quick-set sand, and improved mold-blowing apparatus
US5749401A (en) * 1995-10-12 1998-05-12 Minolta Co., Ltd. Powder filling method
US20090188580A1 (en) * 2008-01-29 2009-07-30 Himmen Hans-Rudolf Inert gas lock for filling a container with bulk material

Also Published As

Publication number Publication date
CH283131A (it) 1952-05-31
FR1027473A (fr) 1953-05-12
DE972225C (de) 1959-06-11
DE972260C (de) 1959-06-18
BE501299A (de) 1952-05-09
GB672487A (en) 1952-05-21

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