EP0047507A1 - 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
EP0047507A1
EP0047507A1 EP81106935A EP81106935A EP0047507A1 EP 0047507 A1 EP0047507 A1 EP 0047507A1 EP 81106935 A EP81106935 A EP 81106935A EP 81106935 A EP81106935 A EP 81106935A EP 0047507 A1 EP0047507 A1 EP 0047507A1
Authority
EP
European Patent Office
Prior art keywords
molding
pressing
boxes
molding machine
mold
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
EP81106935A
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German (de)
English (en)
Other versions
EP0047507B1 (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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    • 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 for producing boxless molds with a mold box with its center line lying horizontally on both sides, the one opening of which can be closed by a horizontally acting ram and the opposite opening can be closed by a swiveling press device, and in which at least one of the pressing surfaces facing each other a model half can be attached, as well as with a stacking device onto which the finished pressed bale can be pushed horizontally through the molding box with the help of the press ram after the pressing device has been swung out.
  • the pressing forces act on the molding material in the horizontal direction.
  • the gronse The main advantage of the molding machine with horizontal production direction described at the beginning is that it requires almost half the molding sand compared to machines with vertical production direction.
  • the mold box carrier is designed as a rotary table with step drive, and there are several mold 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 pressing station requires its own pressing device and each ejecting station needs its own ejecting 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. 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 thus 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. The joints between the abutment plate and the mold cavities in the pressing position are sealed by means of inflation seals. After the pressing process, the slides are pushed into the ejection positions, and the two shaped bales are pushed onto a tilting device and tilted 90 ° around a horizontal axis transversely to the direction of ejection.
  • 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 a pressing device acting in both horizontal directions can be accommodated between them, 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 ° by means of a tilting device and pushed onto a transport system transversely to the pressing direction. Because of the inevitable running play of the two double-sided mold boxes and the large displacement of the mold bales, a correspondingly large offset is also unavoidable in this machine.
  • the present invention has for its object, while avoiding the shortcomings of the machines described above, to increase the performance of molding machines with a horizontal pressing direction and to design them so that optionally bale strands can be produced with a horizontal parting line of the bale halves.
  • the superiority of the machines with a horizontal pressing device in terms of production times, molding sand requirements and the like.
  • 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 e.g. for brake disks, clutch disks, and the like cast from wear-resistant hard cast alloys.
  • the invention consists in that at least one further molding box which is open on both sides and the first molding box is arranged in alignment between the press ram and the pressing device, all molding boxes are movable in a common horizontal guide lying in the pressing and extending direction along the molding box center line, and that between two adjacent mold boxes a model support plate is provided, the cross section of which corresponds to the clear cross section of the mold boxes, and which - in a manner known per se - can be extended and retracted when the mold boxes are pulled apart.
  • the invention several shaped bales are produced with only one set of pressing tools.
  • a particular advantage of the invention is that the pressed mold bale halves are already added inside the machine, so that a minimum of misalignment is ensured.
  • this machine is particularly suitable for coating the models outside the molding machine. In the case of the machines explained above with regard to the prior art, such methods would be extremely difficult to use, if at all.
  • a tilting device is arranged at the outlet of the machine, which can either pass the pressed molded bales in an unchanged joint position, or can be tilted by 90 ° with the molded bales pressed in pairs.
  • one pair of model halves can be used if, according to a further proposal of the invention, different model halves are alternately attached to the pressing tools and to the model support plates.
  • 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 ram 12 has penetrated into the molding box 3.
  • the press device 13 At the opposite end there is the press device 13 with a box-shaped press head 14 which can be expanded by internal pressure and which is fastened by means of a swivel arm 16 to the shaft 17 of the servomotor 18 and can be both 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 mold 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 mold boxes in the direction of the mold 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 box 3, 4 can be coupled to the press ram 12 and the press 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 22 ', 21" which is 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 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 - in the 0 ° position - 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 and the exit of the molding machine.
  • the locking holes 33, 39 and 40 are incorporated at opposite ends and on a web 37, into which the locking bolt 41 engages in the 0 °, 90 ° and 180 ° movement phases.
  • the displacement device 42 Under the support plate 35 (viewed in the 0 ° position) is the displacement device 42, consisting of the hydraulic or pneumatically operating stencil cylinder 43 and the thrust plate 44 aligned at right angles to the lower wing 35b.
  • Fig. 1 shows the tilting device in the working position, in which the bale 45 coming from the molding machine, in the two end faces of which a half 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.
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
DE3033652 1980-09-06
DE19803033652 DE3033652A1 (de) 1980-09-06 1980-09-06 Verfahren und einrichtung zur herstellung und zum stapeln kastenloser formballen
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 true EP0047507A1 (fr) 1982-03-17
EP0047507B1 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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007121875A1 (fr) * 2006-04-18 2007-11-01 Audi Ag Bloc de moulage pour le coulage en sÉrie de pièces
WO2010018238A1 (fr) * 2008-08-07 2010-02-18 Loramendi, S.Coop. Dispositif d'actionnement d'un plateau de fermeture dans une machine de moulage vertical de mottes et machine comprenant ledit dispositif
CN102145379A (zh) * 2010-02-10 2011-08-10 罗兰门第公司 微粒制模机
WO2013093131A1 (fr) 2011-12-22 2013-06-27 Fundacion Tecnalia Research & Innovation Procédé de moulage, dispositif destiné à mettre en œuvre ce procédé et moule obtenu au moyen de ce procédé

Families Citing this family (9)

* 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
AU4256899A (en) * 1999-06-09 2001-01-02 Georg Fischer Disa A/S Casting method and mould string
AU2000235511A1 (en) * 2000-03-31 2001-10-15 Disa Industries A/S Apparatus for producing casting mould parts
EP1326726B1 (fr) * 2000-09-27 2004-06-02 Disa Industries A/S Procede et dispositif de progression pas a pas de moules dans une usine de fonderie a chaine de moules
WO2002096582A1 (fr) * 2001-06-01 2002-12-05 Loramendi, S.A. Machine pour le moulage vertical de mottes
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
WO2012085621A1 (fr) 2010-12-21 2012-06-28 Disa Industries A/S Machine verticale de moulage à sable
US10173259B2 (en) 2013-05-21 2019-01-08 Loramendi, S. Coop. Machine for producing sand moulds

Citations (4)

* 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
US3967672A (en) * 1974-06-26 1976-07-06 Wallwork C M G Making foundry moulds

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Patent Citations (5)

* 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
US3967672A (en) * 1974-06-26 1976-07-06 Wallwork C M G Making foundry moulds
DE2528645B2 (de) * 1974-06-26 1977-11-24 Henry Wallwork & Co. Ltd.; Wallwork, Charles Michael Geoffrey; Manchester (Großbritannien) Vorrichtung zur automatischen herstellung kastenloser giessformen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007121875A1 (fr) * 2006-04-18 2007-11-01 Audi Ag Bloc de moulage pour le coulage en sÉrie de pièces
WO2010018238A1 (fr) * 2008-08-07 2010-02-18 Loramendi, S.Coop. Dispositif d'actionnement d'un plateau de fermeture dans une machine de moulage vertical de mottes et machine comprenant ledit dispositif
CN102145379A (zh) * 2010-02-10 2011-08-10 罗兰门第公司 微粒制模机
CN102145379B (zh) * 2010-02-10 2015-02-04 罗兰门第公司 微粒制模机
WO2013093131A1 (fr) 2011-12-22 2013-06-27 Fundacion Tecnalia Research & Innovation Procédé de moulage, dispositif destiné à mettre en œuvre ce procédé et moule obtenu au moyen de ce procédé

Also Published As

Publication number Publication date
DK392681A (da) 1982-03-07
EP0047507B1 (fr) 1984-05-30
US4442882A (en) 1984-04-17
DE3163892D1 (en) 1984-07-05

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