EP0047507B1 - Machine à mouler pour fabriquer des moules de fonderie sans châssis - Google Patents

Machine à mouler pour fabriquer des moules de fonderie sans châssis Download PDF

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Publication number
EP0047507B1
EP0047507B1 EP81106935A EP81106935A EP0047507B1 EP 0047507 B1 EP0047507 B1 EP 0047507B1 EP 81106935 A EP81106935 A EP 81106935A EP 81106935 A EP81106935 A EP 81106935A EP 0047507 B1 EP0047507 B1 EP 0047507B1
Authority
EP
European Patent Office
Prior art keywords
molding
pressing
machine
boxes
plate
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
Application number
EP81106935A
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German (de)
English (en)
Other versions
EP0047507A1 (fr
Inventor
Michael Achinger
Walter Streitenberger
Otto Voigt
Hans Wolter
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.)
Individual
Original Assignee
Individual
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 claimed from DE19803033652 external-priority patent/DE3033652A1/de
Priority claimed from DE19803035335 external-priority patent/DE3035335C2/de
Application filed by Individual filed Critical Individual
Priority to AT81106935T priority Critical patent/ATE7668T1/de
Publication of EP0047507A1 publication Critical patent/EP0047507A1/fr
Application granted granted Critical
Publication of EP0047507B1 publication Critical patent/EP0047507B1/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

Definitions

  • the invention relates to a molding machine according to the preamble of claim 1.
  • the pressing forces act on the molding material in the horizontal direction. This results in one-piece molded bales, in the end faces of which a mold cavity is pressed in, so that a molded bale strand with vertical parting lines is produced when pushed onto the stacking device (see e.g. DE-PS 1211 760).
  • the molding box support is designed as a rotary table with a step drive, and there are a plurality of molding boxes arranged in pairs opposite one another, so that several compression and ejection stations are formed which are actuated simultaneously.
  • This machine therefore requires a considerable amount of construction work, since each press station requires its own press device and each ejection station its own ejection device.
  • the insertion of cores should also be complicated, which can only be done in an intermediate station. Because of the centrifugal force that occurs during rotation, the cores must be additionally secured, e.g. to be nailed on. There must also be some play on a turntable. This in turn results in a higher risk of the mold halves not clogging up congruently. There is a higher offset and therefore a higher risk of rejects.
  • two mold cavities are arranged in two sliding frames, which are displaced in opposite directions transversely to the horizontal pressing direction.
  • One slider produces lower, the other upper mold halves.
  • the machine also has two pressing devices which act on both sides of an abutment plate pushed between the slides. Blowing seals are used to seal the joints between the abutment plate and the mold cavities in the press position. After the pressing process, the slides are pushed into the ejection positions, and the two shaped bales are each pushed onto a tilting device and tilted here by 90 ° about a horizontal axis transverse to the direction of ejection.
  • the upper half of the bale is then raised in the feed station and the associated lower half of the bale is moved underneath. Finally, the shaped bales thus added are pushed in pairs across a common transport device and brought into the casting station.
  • the transverse movement of the sliding plates be it horizontal or vertical, requires a certain amount of running play, which increases the risk of an unacceptably large misalignment.
  • the many movements of the boxless halves of the bale in the horizontal and vertical directions with changes in direction have to increase the risk of misalignment and thus the waste.
  • the molding machine according to DE-OS 22 28 806 is equipped with two double molding boxes which can be moved transversely to the horizontal pressing direction, but which are arranged at such a distance from one another that there is space for a pressing device acting in both horizontal directions, so that the molding sand is compacted from both sides.
  • two bale halves with a vertical parting line are also added outside the machine, rotated by 90 ° using a tilting device and pushed onto a transport system transversely to the pressing direction. Because of the inevitable running play of the two double mold boxes and the large displacement of the mold bales, a correspondingly large offset is also inevitable with this machine.
  • Molding machines with retractable and extendable model support plates are known from DE-C-23 03 561.
  • the present invention has for its object, while avoiding the shortcomings of the machines described above, the performance like to increase the shape of molding machines with a horizontal pressing direction and to design them in such a way that bale strands with a horizontal parting line between the halves of the bale can also be produced.
  • these machines are particularly unsuitable for the production of molds for flat, relatively narrow castings when high demands are placed on a homogeneous structure. This applies, for example, to brake disks, clutch disks, and the like, which are cast from wear-resistant hard-cast alloys.
  • a tilting device is arranged at the outlet of the machine, which either allows the pressed molded bales to pass through in an unchanged joint position, or with which molded molded bales are tilted 90 °.
  • each molding box has an opening 7, 8, above which the molding sand funnels 9, 10 are attached.
  • the press cylinder 11 is attached, the press punch 12 of which has penetrated into the molding box 3.
  • the pressing device 13 with a box-shaped pressing head 14 which can be expanded by internal pressure and which is fastened to the shaft 17 of the servomotor 18 by means of a swivel arm 16 and can be axially displaced and swiveled by the latter.
  • the servomotor 18 itself is fastened on a frame 20 which surrounds the outlet opening 19 and which at the same time serves as a molding box stop when the molded bales are pushed out (FIG. 2).
  • the model support plate 21 Between the two molding boxes 3, 4 is the model support plate 21, the cross section of which corresponds to the clear cross section of the molding boxes 3, 4 and which are also designed to be spreadable by internal pressure. It is axially displaceable (floating) between the molding boxes in the direction of the molding box center line in order to be able to avoid different pressurization from one side, and is moved in and out transversely to the pressing and extending direction with the actuating cylinder 52 shown in FIG. 7.
  • the molding boxes 3, 4 can be coupled to the pressing die 12 and the pressing head 14 by means of mechanical couplings 50, 51, so that they can be pushed back and forth by the latter for the various work cycles.
  • 27a, 27b and 28a, 28b denote the model halves which belong to one another and which here have different contours.
  • FIGS. 1 and 2 shows a molding machine which is basically the same as that shown in FIGS. 1 and 2, but with three molding boxes 3 ', 4', 4 "between which a number of model support plates 21 ', 21" equal to the number of molding box joints are arranged. Since these are expandable and are subjected to the same pressure as the pressing tools 11 'and 13', it is ensured that the molding material in the middle molding box 4 'is compressed as well as in the molding boxes 3' and 4 "at the ends. Theoretically, the number of Mold boxes can be expanded as required.
  • the tilting device 30 consists of a support plate 35 driven by the hydrostatic motor 33 with the 0 ° position of the upper support surface 35a and the parallel lower support surface 35b. It is rotatably supported in the middle about the horizontal axis 36 arranged transversely to the conveying direction in the side walls 34 and its thickness is dimensioned such that the supporting surface 35a, 35b in the respective working position are aligned with the level of the stacking device 32 and the exit of the molding machine .
  • the locking holes 38, 39 and 40 are incorporated at opposite ends and on a web 37, into which the locking bolt 41 engages in the movement phases 0 °, 90 ° and 180 °.
  • the displacement device 42 consisting of the hydraulically or pneumatically operating actuating cylinder 43 and the thrust plate 44 oriented at right angles to the lower support surface 35b, is attached.
  • 1, 4, 6 show the tilting device in the working position, in which the bale 45 coming from the molding machine, in the two end faces of which half a shape is molded, are pushed together to form a bale strand 29 with vertical parting lines 46. They pass through the upper wing 35a of the tilting device 30.

Claims (7)

1. Machine de formage pour la fabrication de moules sans châssis (29) comportant un châssis de formage (3) ouvert sur deux côtés et disposé horizontalement selon sa ligne médiane, qui peut coulisser horizontalement le long de son axe médian orienté selon la direction de pressage et de déplacement et dont une ouverture est obturable au moyen d'un piston de pressage (12) travaillant horizontalement et dont l'ouverture opposée est obturable au moyen d'un dispositif de pressage pivotant (13), et dans laquelle un demi-modèle (27a, 27b) est fixé à l'une au moins des surfaces de pressage se faisant face, et comportant aussi un dispositif d'empilement (32) sur lequel la motte de moulage une fois pressée est poussée horizontalement au travers du châssis de formage (3) après pivotement du dispositif de pressage (13), caractérisée en ce qu'au moins un autre châssis de formage (4) ouvert sur deux côtés est disposée entre le piston de pressage (12) et le dispositif de pressage (13) en étant aligné avec le premier châssis déplacés dans une glissière (2) horizontale dans son ensemble et orientée selon la direction de pressage et de déplacement, et en ce qu'une plaque porteuse de modèle (21) est prévue chaque fois entre deux châssis de formage voisins (3,4 ou 3', 4', 4"), le nombre de ces plaques porteuses de modèle (21 ) étant égal au nombre de joints des châssis de formage et leur section transversale correspondant à celle de l'évidement des châssis de formage (3, 4), ces plaques porteuses de modèle (21 ) étant approchées et retirées d'une façon connue en soi, lorsque les châssis de formage (3, 4) sont éloignés les uns des autres.
2. Machine de formage selon la revendication 1, caractérisée en ce que les plaques porteuses de modèle (21) sont également disposées de façon à pouvoir coulisser axialement dans la direction de pressage et de déplacement.
3. Machine de formage selon la revendication 1 ou 2, caractérisée en ce que les plaques porteuses de modèles (21) sont également conçues sous la forme de dispositifs de pressage.
4. Machine de formage selon l'une des revendications 1 à 3, caractérisée en ce que différents demi-modèles (27a/b, 28a/b) sont montés de façon à être alternés sur les outils de pressage (12, 14) et sur les plaques porteuses de modèles (21 ).
5. Machine de formage selon l'une des revendications 1 à 4, caractérisée en ce que les châssis de formage (3, 4) sont accouplés aux outils de pressage (piston de pressage (12), tête de pressage (14).).
6. Machine de formage selon l'une des revendications 1 à 5, caractérisée en ce qu'un dispositif de basculement (30) est placé à sa sortie (19), et fait passer les mottes de moulage pressées (45) au choix soit sans modifier la position de leur ligne de joint, soit en basculant de 90° les mottes de moulage (47) pressées par paires.
7. Machine de formage selon la revendication 6, caractérisée en ce que le dispositif de basculement (30) est constitué par une plaque porteuse (35) qui est montée de façon à pouvoir tourner de 180° autour de son axe médian horizontale (36), et qui présente une surface porteuse supérieure (35a) et une surface porteuse inférieure (35b) qui sont alignées avec le niveau du dispositif d'empilement dans leur position de service, et en ce qu'un dispositif de déplacement (42) opérant dans la direction de pressage, et pourvu d'une plaque-poussoir (44) orientée à angle droit par rapport à lui, est fixé à la surface porteuse inférieure (35b).
EP81106935A 1980-09-06 1981-09-04 Machine à mouler pour fabriquer des moules de fonderie sans châssis Expired EP0047507B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81106935T ATE7668T1 (de) 1980-09-06 1981-09-04 Formmaschine zur herstellung kastenloser formen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19803033652 DE3033652A1 (de) 1980-09-06 1980-09-06 Verfahren und einrichtung zur herstellung und zum stapeln kastenloser formballen
DE3033652 1980-09-06
DE3035335 1980-09-19
DE19803035335 DE3035335C2 (de) 1980-09-19 1980-09-19 Formmaschine zur Herstellung kastenloser Formen

Publications (2)

Publication Number Publication Date
EP0047507A1 EP0047507A1 (fr) 1982-03-17
EP0047507B1 true EP0047507B1 (fr) 1984-05-30

Family

ID=25787685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106935A Expired EP0047507B1 (fr) 1980-09-06 1981-09-04 Machine à mouler pour fabriquer des moules de fonderie sans châssis

Country Status (4)

Country Link
US (1) US4442882A (fr)
EP (1) EP0047507B1 (fr)
DE (1) DE3163892D1 (fr)
DK (1) DK392681A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1986A (da) * 1986-01-03 1987-07-04 Dansk Ind Syndikat Formeanlaeg til fremstilling af stoebeformparter
WO2000076696A1 (fr) * 1999-06-09 2000-12-21 Georg Fischer Disa A/S Procede de coulee et moules multiples
DE60005717T2 (de) * 2000-03-31 2004-07-29 Disa Industries A/S Vorrichtung zur herstellung von giesskokillenteilen
CN1454128A (zh) * 2000-09-27 2003-11-05 迪萨工业有限公司 模串铸造设备中逐步推进铸模用的方法及设备
DE60112333T2 (de) * 2001-06-01 2006-05-24 Loramendi, S.A. Vertikale, kastenlose formgiessmaschine
JP4310514B2 (ja) * 2003-06-02 2009-08-12 株式会社コーヨー 鋳型の造型供給装置及びその方法
JP2005081437A (ja) * 2003-09-11 2005-03-31 Asama Giken Co Ltd アルミニウム又はアルミニウム合金鋳物の鋳造方法
DE102006017922A1 (de) * 2006-04-18 2007-10-25 Audi Ag Formblock für den Serienguss von Werkstücken
CN102170982A (zh) * 2008-08-07 2011-08-31 洛拉门迪合作社 立式模铸机中驱动闭合板用驱动设备及包括该设备的机器
DK2357050T3 (da) * 2010-02-10 2013-01-02 Loramendi S Coop Formemaskine til kasseløs formning
WO2012085621A1 (fr) 2010-12-21 2012-06-28 Disa Industries A/S Machine verticale de moulage à sable
CN104125869A (zh) 2011-12-22 2014-10-29 Tecnalia研究与创新基金 模制方法、用于实现所述方法的设备和通过所述方法获得的模具
DK2999560T3 (da) 2013-05-21 2019-05-27 Loramendi S Coop Maskine til fremstilling af sandforme

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD69888A (fr) *
US3008199A (en) * 1957-08-30 1961-11-14 Jeppesen Vagn Aage Method of producing casting molds and a plant for carrying out the said method
DE1211760B (de) * 1957-08-30 1966-03-03 Vagn Aage Jeppesen Dipl Ing Verfahren zur Herstellung von kastenlosen Giessformen sowie Vorrichtung zur Durchfuehrung des Verfahrens
US3303535A (en) * 1963-10-18 1967-02-14 Owens Dev Corp Sand mold patterns formed of porous or permeable metal
US3589431A (en) * 1969-01-09 1971-06-29 Harrison E Fellows Mold making equipment utilizing vertical mold blowing and plural rammers
BE754936A (fr) * 1969-08-28 1971-02-01 Dansk Ind Syndikat Perfectionnements aux installations pour la fabrication de moules composes de parties de moules identiques
US3838731A (en) * 1971-04-15 1974-10-01 Sherwin Williams Co Horizontal stack foundry molding machine with indexing carriage
US3749151A (en) * 1972-04-26 1973-07-31 Gen Motors Corp Vibratory shakeout apparatus
GB1456579A (en) * 1974-06-26 1976-11-24 Wallwork & Co Ltd Making foundry moulds
DK136519B (da) * 1974-09-05 1977-10-24 Dansk Ind Syndikat Anlæg til fremstilling af støbeforme bestående af ens formparter.
SU612751A1 (ru) * 1976-07-26 1978-06-30 Ордена Трудового Красного Знамени Научно-Исследовательский Институт Технологии Автомобильной Промышленности Машина дл изготовлени безоопочных литейных форм
JPS54110927A (en) * 1978-02-20 1979-08-30 Toyoda Automatic Loom Works No frame casting machine
JPS6048261B2 (ja) * 1979-07-11 1985-10-26 株式会社豊田自動織機製作所 鋳型造型方法

Also Published As

Publication number Publication date
EP0047507A1 (fr) 1982-03-17
DK392681A (da) 1982-03-07
US4442882A (en) 1984-04-17
DE3163892D1 (en) 1984-07-05

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