EP0122116A2 - Machine pour la fabrication de moules en sable ou matériau semblable, à division horizontale sans châssis - Google Patents

Machine pour la fabrication de moules en sable ou matériau semblable, à division horizontale sans châssis Download PDF

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Publication number
EP0122116A2
EP0122116A2 EP84302319A EP84302319A EP0122116A2 EP 0122116 A2 EP0122116 A2 EP 0122116A2 EP 84302319 A EP84302319 A EP 84302319A EP 84302319 A EP84302319 A EP 84302319A EP 0122116 A2 EP0122116 A2 EP 0122116A2
Authority
EP
European Patent Office
Prior art keywords
sand
machine
chambers
pressing
mould parts
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.)
Withdrawn
Application number
EP84302319A
Other languages
German (de)
English (en)
Other versions
EP0122116A3 (fr
Inventor
Vagn Mogensen
Carl Herbert Petersen
Peter Uffe Hansen
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 EP0122116A2 publication Critical patent/EP0122116A2/fr
Publication of EP0122116A3 publication Critical patent/EP0122116A3/fr
Withdrawn legal-status Critical Current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
    • B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
    • 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
    • B22C15/23—Compacting by gas pressure or vacuum

Definitions

  • D E -AS 26 53 788 discloses various methodsand machines for the production of horizontally divided casting moulds consisting of simultaneously finished upper and lower parts which in a final phase are united and delivered for the pouring process.
  • Said reference discloses flaskless moulds as well as moulds in ordinary boxes or frames.
  • the present invention relates to a machine adapted to produce flaskless, horizontally divided casting moulds of sand or similar material, said machine comprising in a known manner a mould parts producing apparatus for the simultaneous production of a pair of associate upper and lower mould parts in two co-axial pressing chambers which are disposed one above the other within frame-shaped, vertically displaceable walls and are further bounded by a pattern carrier,common to both chambers,and a respective pressing plate, and which may be brought into and out of communication with, firstly, a vacuum source for the creation of vacuum in the chambers and, secondly, a sand store for shotwise filling of the evacuated chambers, the pressing chamber walls subsequent to the production of a pair of mould parts being displaceable first away from the pattern carrier to release the mould parts therefrom and then,after lateral removal of the carrier, towards each other to join the mould parts.
  • the purpose is to compensate for the influence of the force of gravity which expedites the sand shot down into the upper chamber while delaying the sand shot up into the lower chamber but, on the other hand, the design becomes more complicated because an exact control is required both of the valve which determines the vacuum condition in the chambers, and of the movable grid.
  • mould parts in boxes may involve air evacuation from the pressing chambers both through the pattern carrier and through a pair of frames between which the mould box is clamped during the evacuation step, the sand shooting and the final compression of the mould part by means of the pressing plates.
  • the machine according to the invention differs from the prior art in that the pressing chamber walls include evacuation nozzles and are provided with sand inlet openings and evacuation ports so positioned that by the displacement of the chamber walls towards and away from their closed position in relation to the pattern carrier, said openings and ports come into and out of communication with the sand store and the vacuum source, respectively.
  • the sand store comprises two containers positioned at opposite-sides of the mould parts producing apparatus, and in case both the pressing chamber wall portions opposite the sand containers have sand inlet slits at the top of the upper and at the bottom of the lower chamber.
  • sand may be shot into the pressing chambers simultaneously from their opposite sides at the level of the surfaces of the pressing plates, and more or less in parallel thereto, from where the further sand movement is effected substantially in the axial direction downwardly and upwardly, respectively, towards the pattern carrier so that "shade effect" implying less compact mould part areas is substantially eliminated.
  • the remainder of the pressing chamber wall is provided with appropriately uniformly distributed evacuation nozzles which through cavities in the wall are connected with evacuation ports in the wall por - tions concerned.
  • evacuation nozzles which through cavities in the wall are connected with evacuation ports in the wall por - tions concerned.
  • the above mentioned axial sand movement may be further expedited when air is evacuated also through the pattern carrier, mainly in the same manner as is the case with the above mentioned prior art, but approximately the same effect may be obtained without the structural complications necessary in the above case, viz. when the pattern carrier consists of a box closed to the surroundings except for openings towards the two pressing chambers. This entails that the cavity in the pattern carrier is evacuated automatically together with the chambers and may consequently contribute an extra suction effect on the mould sand being introduced.
  • the two mould parts may be further compressed by displacement of the pressing plates, and possibly also the frame-shaped chamber walls, towards the horizontal centre plane of the apparatus, following which the separation of the mould parts from the pattern carrier, the lateral removal of this carrier, the joining of the mould parts, and the removal of the finished casting mould from the apparatus may be effected in a manner known per se.
  • the machine consists mainly of a mould parts production apparatus 1 and a sand store comprising two sand containers 2 positioned on either side of said apparatus.
  • the assemblies concerned may be separately constructed and assembled at the place of use, for instance by mounting them on a common framework or base.
  • the mould parts production apparatus 1 includes an upper pressing chamber 3 and a lower pressing chamber 4 which in the situation illustrated on the drawing are separated from each other by a common pattern carrier 5 which from the illustrated position may be run laterally out of the apparatus.
  • a common pattern carrier 5 which from the illustrated position may be run laterally out of the apparatus. This has been indicated in Fig. 1 in that the carrier via a pair of side flanges 6 rests on supporting rollers 7.
  • the carrier 5 has the shape of a hollow box with a peripheral frame 8 and exchangeable upper and lower pattern boards 9 and 10 with half patterns 11 and 12.
  • the pressing chambers 3 and 4 are surrounded by walls 13 and 14 that are displaceable on vertical guide columns 15 and 16 between a pair of cross members 17 and 18 so that the walls 13 and 14 may be moved towards and away from each other, and said two chambers are closed at the top and bottom, respectively, by upper and lower pressing plates 19 and 20. Adjacent said pressing plates the wall portions, illustrated in section in Fig.
  • the walls 13 and 14 include cavities which are in communication with the chambers 3 and 4 through a number of uniformly distributed air evacuation nozzles 25 and to the opposite side are in communication with evacuation ports 26 communicating with a common passage 27 which is again in communication with a vacuum source, not shown.
  • evacuation nozzles 15 om the pattern boards 9 and 10 and possibly also in the half patterns themselves the pressing chambers 3 and 4 are further in communication with the cavity in the box-like pattern carrier 5.
  • the vacuum condition in the pressing chambers 3 and 4 causes a so to say instantaneous filling of the chambers with sand from the containers 2 which may have suitable air inlet slits towards the surroundings.
  • the mould parts formed by the sand are finally compressed by displacement of the chamber walls 13 and 14 with the pressing plates 19 and 20 towards each other, following which an opposed displacement draws the finished mould parts free of the half patterns 11 and 12, so that the pattern carrier 5 may be removed laterally from the illustrated position, in order to allow the mould.parts to be joined, possibly after insertion of any necessary cores.
  • the upper pressing chamber wall 13 is firstly displaced downwardly to abut against the lower wall 14, and subsequently the upper pressing plate 19 is displaced somewhat further downwardly until the upper mould part has come to rest on the lower one. Then the assembled mould which is now clamped between the pressing plates 19 and 20 is displaced downwardly through the apparatus and then delivered to a conveyor, not shown.
  • the pattern carrier 5 may again be run into position, and the pressing chambers may be reclosed at renewed displacement of the walls and the plates into the position in Fig. 1, thereby automatically creating the communication with the sand store and the vacuum source.
  • Fig. 1 The same reference numerals used in Fig. 1 are applied to Figs. 2 and 3 for the same or analogous parts. The most important difference is that the pattern carrier 5 is pivotal as marked by the double arrow in Fig. 3 instead of being linearly displaceable. According to Figs. 2 and 3 the pattern carrier 5 is through a spacer 28 rigidly connected with a lever 29 which is pivotal about a lower, horizontal axis 30 into a passive position in which the carrier has been swung about 90°, so that it will be particularly easy to exchange the pattern boards 9 and 10 or possibly only the half patterns 11 and 12.
  • the lever 29 serves at the same time as evacuation manifold, in that it is connected with the vacuum source through a flexible hose 31 and is provided with a pair of mouth pieces 32 with which the evacuation ports 26 enter into communication. Said mouth pieces are further provided with stop valves 33 which makes it possible to minimize wear of the packings or surfaces adapted to ensure tightness around the ports, as the mechanical connection may have taken place before the valves open.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
EP84302319A 1983-04-07 1984-04-04 Machine pour la fabrication de moules en sable ou matériau semblable, à division horizontale sans châssis Withdrawn EP0122116A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK1554/83 1983-04-07
DK155483A DK155483A (da) 1983-04-07 1983-04-07 Maskine til fremstilling af kasseloese, vandret delte stoebeforme af sand eller lignende materiale

Publications (2)

Publication Number Publication Date
EP0122116A2 true EP0122116A2 (fr) 1984-10-17
EP0122116A3 EP0122116A3 (fr) 1985-01-02

Family

ID=8106014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84302319A Withdrawn EP0122116A3 (fr) 1983-04-07 1984-04-04 Machine pour la fabrication de moules en sable ou matériau semblable, à division horizontale sans châssis

Country Status (7)

Country Link
EP (1) EP0122116A3 (fr)
JP (1) JPS59185547A (fr)
DD (1) DD219692A5 (fr)
DK (1) DK155483A (fr)
ES (1) ES531370A0 (fr)
PL (1) PL247100A1 (fr)
ZA (1) ZA841905B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178513A2 (fr) * 1984-10-15 1986-04-23 Eugen Dipl.-Ing. Bühler Procédé et chantier de moulage pour la fabrication mécanique des mottes en sable divisées horizontalement
WO1988000866A1 (fr) * 1986-08-05 1988-02-11 Buehler Eugen Procede et dispositif pour fabriquer des moules de fonderie sans chassis et segmentes
US4724888A (en) * 1985-03-01 1988-02-16 Buehler Eugen Method and apparatus for the production of flaskless foundry molds
EP0779118A1 (fr) * 1995-12-15 1997-06-18 Sintokogio, Ltd. Dispositif d'insufflation pour une machine à mouler
WO1997048511A1 (fr) * 1996-06-18 1997-12-24 Rainer Kienle Machine a mouler
DE29805875U1 (de) * 1998-04-01 1999-08-26 Kienle Rainer Formmaschine
WO2001072450A1 (fr) * 2000-03-29 2001-10-04 Georg Fischer Disa A/S Machine a mouler pour la fabrication de moules sans chassis et procedes de fonctionnement de ladite machine
EP1905523A4 (fr) * 2005-06-07 2008-08-20 Sintokogio Ltd Module a chassis, dispositif de moulage a partie de dessus et partie de dessous, et chaine de moulage
US11660664B2 (en) 2018-06-15 2023-05-30 Sintokogio, Ltd. Mold molding apparatus and method for controlling mold molding apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6336950A (ja) * 1986-07-29 1988-02-17 オイゲン・ビ−ラ− 鋳型等の製造方法および装置
JPH0619955U (ja) * 1990-12-07 1994-03-15 新東工業株式会社 鋳型造型設備のマッチプレート装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709282A (en) * 1970-09-21 1973-01-09 Banger Punta Operations Inc Molding machine
DE2653788B1 (de) * 1976-11-26 1977-09-15 Eugen Dipl-Ing Buehler Verfahren und vorrichtung zum herstellen von giessformen aus bindemittelhaltigem formsand
FR2463652A1 (fr) * 1979-08-22 1981-02-27 Sintokogio Ltd Machine a fabriquer des moules en sable comportant des moyens pour empecher le refoulement du sable dans son reservoir

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709282A (en) * 1970-09-21 1973-01-09 Banger Punta Operations Inc Molding machine
DE2653788B1 (de) * 1976-11-26 1977-09-15 Eugen Dipl-Ing Buehler Verfahren und vorrichtung zum herstellen von giessformen aus bindemittelhaltigem formsand
FR2463652A1 (fr) * 1979-08-22 1981-02-27 Sintokogio Ltd Machine a fabriquer des moules en sable comportant des moyens pour empecher le refoulement du sable dans son reservoir

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178513A2 (fr) * 1984-10-15 1986-04-23 Eugen Dipl.-Ing. Bühler Procédé et chantier de moulage pour la fabrication mécanique des mottes en sable divisées horizontalement
EP0178513A3 (en) * 1984-10-15 1987-03-25 Eugen Dipl.-Ing. Buhler Method and moulding plant for machine made horizontally divided boxless sand moulds
US4724888A (en) * 1985-03-01 1988-02-16 Buehler Eugen Method and apparatus for the production of flaskless foundry molds
WO1988000866A1 (fr) * 1986-08-05 1988-02-11 Buehler Eugen Procede et dispositif pour fabriquer des moules de fonderie sans chassis et segmentes
EP0257389A1 (fr) * 1986-08-05 1988-03-02 Eugen Dipl.-Ing. Bühler Procédé et dispositif pour la production de mottes divisées
EP0779118A1 (fr) * 1995-12-15 1997-06-18 Sintokogio, Ltd. Dispositif d'insufflation pour une machine à mouler
WO1997048511A1 (fr) * 1996-06-18 1997-12-24 Rainer Kienle Machine a mouler
DE29805875U1 (de) * 1998-04-01 1999-08-26 Kienle Rainer Formmaschine
WO2001072450A1 (fr) * 2000-03-29 2001-10-04 Georg Fischer Disa A/S Machine a mouler pour la fabrication de moules sans chassis et procedes de fonctionnement de ladite machine
EP1905523A4 (fr) * 2005-06-07 2008-08-20 Sintokogio Ltd Module a chassis, dispositif de moulage a partie de dessus et partie de dessous, et chaine de moulage
US11660664B2 (en) 2018-06-15 2023-05-30 Sintokogio, Ltd. Mold molding apparatus and method for controlling mold molding apparatus

Also Published As

Publication number Publication date
ZA841905B (en) 1984-10-31
JPS59185547A (ja) 1984-10-22
PL247100A1 (en) 1984-11-19
DD219692A5 (de) 1985-03-13
DK155483A (da) 1984-10-08
DK155483D0 (da) 1983-04-07
ES8601739A1 (es) 1985-03-01
ES531370A0 (es) 1985-03-01
EP0122116A3 (fr) 1985-01-02

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Inventor name: HANSEN, PETER UFFE

Inventor name: MOGENSEN, VAGN

Inventor name: PETERSEN, CARL HERBERT