EP0117194B1 - Installation pour le moulage en modèle perdu - Google Patents

Installation pour le moulage en modèle perdu Download PDF

Info

Publication number
EP0117194B1
EP0117194B1 EP19840400269 EP84400269A EP0117194B1 EP 0117194 B1 EP0117194 B1 EP 0117194B1 EP 19840400269 EP19840400269 EP 19840400269 EP 84400269 A EP84400269 A EP 84400269A EP 0117194 B1 EP0117194 B1 EP 0117194B1
Authority
EP
European Patent Office
Prior art keywords
tanks
end position
ladle
pivoting
installation according
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
EP19840400269
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0117194A1 (fr
Inventor
Bernard Sage
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.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0117194A1 publication Critical patent/EP0117194A1/fr
Application granted granted Critical
Publication of EP0117194B1 publication Critical patent/EP0117194B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D47/00—Casting plants
    • B22D47/02—Casting plants for both moulding and casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould

Definitions

  • the present invention relates to an installation for molding in a lost pattern, according to the preamble of claim 1.
  • a plastic model such as expanded polystyrene
  • a granulated or pulverulent material such as powdered iron with spherical grains
  • Baccalaureat a granulated or pulverulent material
  • the plastic material sublimes and the metal takes its place so that one obtains a metal part having the shape of the model.
  • This process is known as lost pattern molding.
  • the granulated material is fluidized by admitting compressed air into the tank during the introduction of the model and the extraction of the molded part.
  • the model or the casting moves in the granulated material as in a liquid.
  • a process of this kind is described in documents FR-A 2001 291 or USA 3842899.
  • This installation comprises at least four trays intended to contain a granulated or pulverulent material, at least one furnace intended to contain a molten metal, at least one manipulator suitable for introducing the models into trays of granulated material and for extracting the molded parts therefrom , and at least one ladle capable of taking molten metal in an oven and pouring it into a tank, and is characterized in that the tanks are arranged in pairs, the two tanks of the same pair being carried by the same platform pivotally mounted relative to a fixed frame, and in that it comprises means for pivoting the platform, at an angle of approximately 180 °, the tanks thus being able to occupy a first extreme position and a second diametrically opposite extreme position compared to the first.
  • the installation comprises two pairs of tanks and two ovens as well as a single manipulator which can serve the tanks in their first extreme position, and a single ladle which can serve the ovens and the bins located in their second extreme position.
  • the manipulator can be mounted privately with respect to a fixed support around an axis located equidistant from the axes of the tanks being in their first extreme position.
  • the ladle can be pivotally mounted with respect to a fixed support around an axis located at equal distance from the axes of the ovens and the axes of the tanks being in their second extreme position.
  • control circuits are advantageously arranged so that the manipulator introduces the model into the tanks located in their first extreme position or extracts the molded parts while the ladle pours molten metal into the tanks located in their second extreme position.
  • the molding installation according to the invention comprises two pairs of casting pans 1a-1'a and 1b-1'b, each of pairs 1a-1'a or 1b-1 'b being carried by a platform 2a or 2b which can pivot relative to a fixed frame 3 and being surmounted by a suction hood 4; the two tanks of the same pair are angularly offset from each other by 180 °.
  • a cooling coil 5 connected to a source of water; moreover, each tank comprises means for introducing compressed air into it in order to fluidize the granulated or pulverulent material which it contains.
  • the installation also includes a manipulator 6 carried by a support 7 which is pivotally mounted on a fixed frame 8 around an axis 9 equidistant from the axes of the tanks 1a and 1b.
  • This manipulator allows on the one hand to grasp a model 10 which is on the conveyor 11 and to place it in the tins 1 a and 1 b and, on the other hand to grasp in a tapping pan a molded part 12 and deposit it in a cooling tank 13.
  • a conveyor 14 Near this cooling tank is a conveyor 14 on which an operator can deposit the molded part 12 after it has sufficiently cooled.
  • the installation also includes a ladle 15 carried by a support 16 which is pivotally mounted on a fixed frame 17 around an axis 18. This axis is equidistant from the axes of the tanks a and 1'b as well as the axes of two ovens 19a and 19b.
  • a bucket 20 carried by an arm 21 can be placed above the tins located in positions t'a a and 1'b.
  • the ladle 15 makes it possible to take molten metal from the furnace 19a or 19b and to pour it into the bucket 20.
  • Each ejection tank has an associated ejector 22 constituted by a grid which is connected by an arm 23 to the piston rod of a jack 24 (see Figure 3).
  • the references 25 and 26 respectively designate a hydraulic group which supplies all the installation cylinders and partitions which protect the installation during operation.
  • the manipulator 6 introduces a model 10 into the tank 1 a, then another model into the tank 1 b, the two tanks being successively fluidized. After stopping the fluidization, each bin is vibrated in order to compact the powder. Then the two platforms 2a and 2b are rotated by 180 ° in order to swap the trays 1 a and a, 1 b and 1'b.
  • the cups 20 are brought above the tanks a and 1'b which contain the model parts and using the ladle 15 molten metal is poured therefrom respectively from the oven 19a or from the oven 19b. The tanks are then cooled by passing water through the coils.
  • the cups 20 are removed from the tanks 1'a and 1'b and the platforms 2a and 2b are again pivoted to bring the tanks back to their initial position.
  • the manipulator 6 the molded parts are gripped in the tanks 1 a and 1b and they are successively deposited in the cooling tank 13.
  • the operator deposits it on the conveyor 14 which brings it to the finishing area.
  • the control circuits are arranged so that the pouring of the molten metal using the ladle 15 takes place while the manipulator 6 transports a molded part in the cooling tank 13. They are also arranged so that the platform 2b pivots after the platform 2a, the time separating the two pivotings being approximately equal to a quarter of the total duration of the work cycle.
  • the ladle 15 alternately feeds the tank which is in a and that which is in 1'b.
  • the manipulator 6 takes a model part 10, deposits it in the tank 1a, takes a few moments later, the platform 2a having privileged, the molded part which was in the tank has it to deposit it in the cooling tank 13, then takes up a new model part to place it in the tray 1b, and finally, the platform 2b having pivoted, takes the molded part which was in the tray 1'b to place it in the tray 13.
  • Figure 4 shows the cycle diagram.
  • the tracks 1, II, III and IV correspond to the pieces which are at the instant t in the tanks 1a, 1b, 1'a and 1'b respectively, the instant t being that of the beginning of a cycle for the model part located in tray 1 a.
  • the portion 27 corresponds to the taking of the model part, to its transfer into the casting tray, to the release of the manipulator 6 and to its return;
  • the portion 28 corresponds to the rotation of the platform;
  • the portion 29 corresponds to the casting of the molten metal;
  • the portion 30 corresponds to the cooling of the molded part and to the extraction of the pouring cup 20;
  • the portion 31 corresponds to the rotation of the platform bringing it back to its initial position;
  • the portion 32 corresponds to the transfer of the molded part in the cooling tank 13; and the portion 33 corresponds to the cooling of this part in said tank 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Mold Materials And Core Materials (AREA)
  • Fats And Perfumes (AREA)
  • Casting Devices For Molds (AREA)
EP19840400269 1983-02-15 1984-02-09 Installation pour le moulage en modèle perdu Expired EP0117194B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8302622A FR2540761A1 (fr) 1983-02-15 1983-02-15 Installation pour le moulage en modele perdu
FR8302622 1983-02-15

Publications (2)

Publication Number Publication Date
EP0117194A1 EP0117194A1 (fr) 1984-08-29
EP0117194B1 true EP0117194B1 (fr) 1987-04-22

Family

ID=9286025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840400269 Expired EP0117194B1 (fr) 1983-02-15 1984-02-09 Installation pour le moulage en modèle perdu

Country Status (4)

Country Link
EP (1) EP0117194B1 (enrdf_load_stackoverflow)
JP (1) JPS59218260A (enrdf_load_stackoverflow)
DE (1) DE3463225D1 (enrdf_load_stackoverflow)
FR (1) FR2540761A1 (enrdf_load_stackoverflow)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH502861A (de) * 1968-02-03 1971-02-15 Gruenzweig & Hartmann Verfahren und Vorrichtung zur Herstellung von Gussstücken
US3557867A (en) * 1969-06-04 1971-01-26 Gruenzweig & Hartmann Casting apparatus
US3842899A (en) * 1971-04-13 1974-10-22 Gruenzweig & Hartmann Apparatus for carrying out full-form casting process
US3868986A (en) * 1974-01-04 1975-03-04 Ford Motor Co Pattern alignment means for use with lost foam molding process

Also Published As

Publication number Publication date
FR2540761A1 (fr) 1984-08-17
FR2540761B1 (enrdf_load_stackoverflow) 1985-04-12
JPS59218260A (ja) 1984-12-08
DE3463225D1 (en) 1987-05-27
EP0117194A1 (fr) 1984-08-29

Similar Documents

Publication Publication Date Title
ES2622093T3 (es) Sistema de control de proceso integrado para hornos de fundición de metal por inducción eléctrica
JPS5926433B2 (ja) ふた付きの容器中の生成物を計量してあける自動装置
US4954037A (en) Method for aligning, lifting and tilting a container relative to a vertical aperture
ES2987525T3 (es) Sistema de torreta de cuchara robotizada
EP0117194B1 (fr) Installation pour le moulage en modèle perdu
CN110394440A (zh) 浇铸装置
US20020124987A1 (en) Casting apparatus with mold handling/positioning fixture
ES2966490T3 (es) Sistema de dispositivo de transporte de cuchara robotizado con manipulador integrado
JPH0429463B2 (enrdf_load_stackoverflow)
CN215217152U (zh) 具有残料入料装置的金属熔融炉
JPH09273872A (ja) 溶湯スラグの除去装置
KR20070049233A (ko) 반고체 금속 슬러리 제조방법 및 장치
US4031947A (en) Method and apparatus for slug casting
EP2112961B1 (fr) Carrousel statique
US3964541A (en) Apparatus for metal casting
JP4603280B2 (ja) 金属成形品の製造ライン及び容器の復元方法
FR2533847A1 (fr) Procede et installation de manutention de moules de fonderie pour la coulee sous basse pression d'alliages metalliques tres oxydables
CA2062168A1 (fr) Procede de traitement de scories d'acierie, installation pour sa mise en oeuvre et scories obtenues par le procede
EP0436904B1 (en) Rotational mold apparatus
JPH0449184Y2 (enrdf_load_stackoverflow)
CN119735023B (zh) 一种自动翻转倒料装置
CN213496473U (zh) 一种不锈钢铸件生产用真空精壳负压铸造流水线
JP2006051518A (ja) スラリー処理供給装置
JP2010082664A (ja) 鋳造機若しくはプレス機を備えた鋳造機における自動取り出し装置
KR200386708Y1 (ko) 납 재생장치

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE GB IT

17P Request for examination filed

Effective date: 19840712

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3463225

Country of ref document: DE

Date of ref document: 19870527

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

ITPR It: changes in ownership of a european patent

Owner name: OFFERTA DI LICENZA AL PUBBLICO

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920128

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920225

Year of fee payment: 9

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930209

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19931103