EP0164731A1 - Procédé pour la production de parties de moules - Google Patents

Procédé pour la production de parties de moules Download PDF

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Publication number
EP0164731A1
EP0164731A1 EP85107199A EP85107199A EP0164731A1 EP 0164731 A1 EP0164731 A1 EP 0164731A1 EP 85107199 A EP85107199 A EP 85107199A EP 85107199 A EP85107199 A EP 85107199A EP 0164731 A1 EP0164731 A1 EP 0164731A1
Authority
EP
European Patent Office
Prior art keywords
mould
pressure
plates
supply
chamber
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.)
Granted
Application number
EP85107199A
Other languages
German (de)
English (en)
Other versions
EP0164731B1 (fr
Inventor
Aage Berg Larsen
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.)
Dansk Industri Syndikat AS
Dansk Landbrugs Grovvareselskab AMBA
Original Assignee
Dansk Industri Syndikat AS
Dansk Landbrugs Grovvareselskab AMBA
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 Dansk Industri Syndikat AS, Dansk Landbrugs Grovvareselskab AMBA filed Critical Dansk Industri Syndikat AS
Publication of EP0164731A1 publication Critical patent/EP0164731A1/fr
Application granted granted Critical
Publication of EP0164731B1 publication Critical patent/EP0164731B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
    • B22C11/10—Moulding machines characterised by the relative arrangement of the parts of same with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing

Definitions

  • This invention relates to a method of producing mould parts by means of an automatic mould part producing apparatus of the type comprising a mould chamber having pressure plates movable towards each other, to which plates mould plates are fastened, and in which the mould chamber can receive mould material through a mainly funnel-shaped inlet from a supply above said inlet, said material supplied by pressure.
  • this object is achieved by a method of the kind mentioned in the introduction, which is characteristic in
  • both the insertion pressure and the fluidization pressure have been controlled independent of the momentary pressure values above the supply and within the funnel-shaped inlet. Whereas no attempts have been made to procure a continuous adjustment of dependence of the realized values in the relevant areas and therefore, there has been no possibility of making the pressure development dependent on the exact form of the mould parts produced.
  • the mould chamber can be connected to a vaccum source at certain points at the "shadow areas”.
  • German published specification No. 1.941.736 a method is described according to which the mould chamber is subjected to a vacuum during the insertion of sand, but the vacuum is provided solely to increase the effective pressure difference between the mould cavity and the space above the supply by connecting the mould cavity with the vacuum source through a relatively wide slot in the bottom of the mould chamber.
  • German published specification there is no description of providing vacuum through apertures spaced in the surface of the mould chamber.
  • a container 1 is used for storage of the mould sand 2, which, as the name indicates, normally is sand, but it is possible also to use other suitable mould materials.
  • the mould sand 2 which, as the name indicates, normally is sand, but it is possible also to use other suitable mould materials.
  • air channels 3 at the side walls of the container pressure air is injected into the space above the sand 2.
  • a fluidization of the sand is provided at the funnel-shaped inlet 4 of the container, air being supplied under high pressure through the supply ducts 5, and by this, air pockets and a fluidization are provided immediately above the inlet 4, as indicated by the arrows and the dotted lines.
  • the pressurized air is supplied from a pressure air container 6 which is provided with pressurized air from a compressor through a valve 7.
  • a mould chamber 8 Under the container 1, a mould chamber 8 is provided which is limited in the lateral direction by mould plates 9 and 10.
  • the mould plates are supported by pressure plates 11 and 12 respectively which by means of a piston system 13 (only one piston is shown) is arranged so that they can be led towards each other under high pressure.
  • passage apertures 14 are designed which via supply lines and a three-way valve 15 can be connected to a vacuum source 16 and a pressure source 17 respectively.
  • mould insertion has just been initiated, and the sand 2 is forced from the funnel-shaped inlet 4 under high pressure into the mould chamber 8 by pressure injection through a porous plate at the bottom of the funnel, such as it is indicated by the arrows.
  • the insertion of the sand and the compression in the mould chamber 8 is furthered by providing vacuum from the vacuum source 16.
  • a controlled pressure is furthermore established over the sand, and the lower pressure injection serves to fluidization of the funnel area.
  • the mould plates 9 and 10 are led towards each other, activated by a working cylinder, not shown, which by pistons 13 drive the pressure plates 11 and 12 towards each other.
  • Removal of the mould plate 10 is made by moving the piston (not shown) and the pressure plate 12 from the mould in the programmed way, simultaneously supplying pressurized air from the pressure air source 17 through the passage apertures 14, so that a positive pressure against the mould limiting surfaces is provided.
  • the mould 8 is removed from the mould chamber ny means of the shown piston 13 and the pressure plate 11 and pushed forward to be put together with the previously produced moulds in a manner known per se.
  • the mould plate 9 is stripped by moving the piston 13 and the pressure plate 11 away from the mould last produced in a programmed way, by simultaneously injecting pressure air from the source 17 through the apertures 14.
  • the piston 13 and the pressure plate 11 turn back to their starting positions in the mould chamber. After this, the pressure plate 12 is moved back to starting position by means of the piston, not shown. Now, a new mould insertion can begin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Pens And Brushes (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP85107199A 1984-06-15 1985-06-11 Procédé pour la production de parties de moules Expired EP0164731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK2945/84 1984-06-15
DK294584A DK294584D0 (da) 1984-06-15 1984-06-15 Fremgangsmaade til fremstilling af formparter

Publications (2)

Publication Number Publication Date
EP0164731A1 true EP0164731A1 (fr) 1985-12-18
EP0164731B1 EP0164731B1 (fr) 1988-03-23

Family

ID=8117434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107199A Expired EP0164731B1 (fr) 1984-06-15 1985-06-11 Procédé pour la production de parties de moules

Country Status (10)

Country Link
EP (1) EP0164731B1 (fr)
JP (1) JPS6182950A (fr)
CA (1) CA1266362A (fr)
DD (1) DD238745A5 (fr)
DE (1) DE3561929D1 (fr)
DK (1) DK294584D0 (fr)
ES (1) ES8607774A1 (fr)
PL (1) PL144177B1 (fr)
SU (1) SU1757447A3 (fr)
ZA (1) ZA854335B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000156A1 (fr) * 1989-06-29 1991-01-10 NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE TEKHNOLOGII AVTOMOBILNOI PROMYSHLENNOSTI (NPO 'NIITavtoprom') Procede et dispositif de fabrication de moules a coulage unique
WO1991014525A1 (fr) * 1990-03-20 1991-10-03 Dansk Industri Syndikat A/S Procede de production d'une serie de moules ou de parties de moules de fonte et appareil de realisation de ce procede
US5547015A (en) * 1993-07-01 1996-08-20 Dansk Industri Syndikat A/S Method and apparatus for manufacturing moulds or mould parts by blowing particulate material into a mould chamber
WO2001056723A1 (fr) * 2000-02-04 2001-08-09 Disa Industries A/S Procede et dispositif de production de moules de coulee ou de parties de moule
WO2002062507A1 (fr) * 2001-02-07 2002-08-15 Disa Industries A/S Machine de moulage au sable à soufflage amélioré du sable
US6752196B2 (en) * 2000-02-17 2004-06-22 Sintokogio, Ltd. Method and device for filling casting sand
KR101223285B1 (ko) * 2010-11-02 2013-01-16 최경화 원격조종 안전 삼각대

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19745093B4 (de) * 1997-10-11 2007-03-01 Hydro Aluminium Alucast Gmbh Vorrichtung zum Herstellen von Gießformen oder Gießformteilen
CN105216197A (zh) * 2015-10-20 2016-01-06 重庆跃发日用品有限公司 一种塑料模压料的掺混送料方法
CN106623813A (zh) * 2016-12-28 2017-05-10 池州恒和精密机械有限公司 一种空心铸件的砂型加工装置
WO2023211317A1 (fr) * 2022-04-29 2023-11-02 Общество с ограниченной ответственностью "АВП Инновации" Procédé de production par addition d'articles de forme complexe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1475935A (en) * 1922-10-02 1923-12-04 Tabor Mfg Co Method and apparatus for forming sand molds
FR1049962A (fr) * 1951-02-09 1954-01-04 Fischer Ag Georg Procédé et appareil pour assurer l'écoulement régulier de matières pulvérulentes ou granuleuses à partir de trémies de chargement, notamment dans les machines à souffler et mouler à noyaux
DE1941736B1 (de) * 1968-08-19 1971-07-29 Buehler Eugen Verfahren bei kastenlosen Formmaschinen zum Einschiessen des Formsandes und Maschine zur Durchfuehrung desselben
DE2609274A1 (de) * 1976-03-05 1977-09-08 Buehler Eugen Verfahren zur pneumatischen sandverdichtung bei der herstellung von sandformen oder -kernen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU30790A1 (fr) * 1950-06-12 1951-08-01
JPS5314647U (fr) * 1976-07-16 1978-02-07
JPS57171545A (en) * 1981-04-13 1982-10-22 Sintokogio Ltd Molding device for hollow core
US4437507A (en) * 1981-08-11 1984-03-20 Seeley Robert J Molding machine
JPS5877741A (ja) * 1981-10-31 1983-05-11 Sintokogio Ltd 鋳型造型方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1475935A (en) * 1922-10-02 1923-12-04 Tabor Mfg Co Method and apparatus for forming sand molds
FR1049962A (fr) * 1951-02-09 1954-01-04 Fischer Ag Georg Procédé et appareil pour assurer l'écoulement régulier de matières pulvérulentes ou granuleuses à partir de trémies de chargement, notamment dans les machines à souffler et mouler à noyaux
DE1941736B1 (de) * 1968-08-19 1971-07-29 Buehler Eugen Verfahren bei kastenlosen Formmaschinen zum Einschiessen des Formsandes und Maschine zur Durchfuehrung desselben
DE2609274A1 (de) * 1976-03-05 1977-09-08 Buehler Eugen Verfahren zur pneumatischen sandverdichtung bei der herstellung von sandformen oder -kernen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 5, no. 189 (M-99) [861], 28th November 1981; & JP - A - 56 109 145 (TAIYOU CHIYUUKI K.K.) 29-08-1981 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000156A1 (fr) * 1989-06-29 1991-01-10 NAUCHNO-PROIZVODSTVENNOE OBIEDINENIE TEKHNOLOGII AVTOMOBILNOI PROMYSHLENNOSTI (NPO 'NIITavtoprom') Procede et dispositif de fabrication de moules a coulage unique
US5161603A (en) * 1989-06-29 1992-11-10 Volkomich Anatoly A Method for production of single-use foundry molds and apparatus for realization thereof
WO1991014525A1 (fr) * 1990-03-20 1991-10-03 Dansk Industri Syndikat A/S Procede de production d'une serie de moules ou de parties de moules de fonte et appareil de realisation de ce procede
US5332025A (en) * 1990-03-20 1994-07-26 Dansk Industri Syndikat A/S Method of and apparatus for producing a series of casting molds or mold parts
US5547015A (en) * 1993-07-01 1996-08-20 Dansk Industri Syndikat A/S Method and apparatus for manufacturing moulds or mould parts by blowing particulate material into a mould chamber
WO2001056723A1 (fr) * 2000-02-04 2001-08-09 Disa Industries A/S Procede et dispositif de production de moules de coulee ou de parties de moule
US6752196B2 (en) * 2000-02-17 2004-06-22 Sintokogio, Ltd. Method and device for filling casting sand
WO2002062507A1 (fr) * 2001-02-07 2002-08-15 Disa Industries A/S Machine de moulage au sable à soufflage amélioré du sable
KR101223285B1 (ko) * 2010-11-02 2013-01-16 최경화 원격조종 안전 삼각대

Also Published As

Publication number Publication date
ES544190A0 (es) 1986-06-01
PL144177B1 (en) 1988-04-30
JPH0261868B2 (fr) 1990-12-21
CA1266362A (fr) 1990-03-06
ZA854335B (en) 1986-01-29
SU1757447A3 (ru) 1992-08-23
DD238745A5 (de) 1986-09-03
DK294584D0 (da) 1984-06-15
PL253954A1 (en) 1986-04-22
ES8607774A1 (es) 1986-06-01
EP0164731B1 (fr) 1988-03-23
JPS6182950A (ja) 1986-04-26
DE3561929D1 (en) 1988-04-28

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