EP0414584A2 - Installation for cleaning castings - Google Patents

Installation for cleaning castings Download PDF

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Publication number
EP0414584A2
EP0414584A2 EP90401928A EP90401928A EP0414584A2 EP 0414584 A2 EP0414584 A2 EP 0414584A2 EP 90401928 A EP90401928 A EP 90401928A EP 90401928 A EP90401928 A EP 90401928A EP 0414584 A2 EP0414584 A2 EP 0414584A2
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EP
European Patent Office
Prior art keywords
station
installation
installation according
bell
unclogging
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
EP90401928A
Other languages
German (de)
French (fr)
Other versions
EP0414584B1 (en
EP0414584A3 (en
Inventor
Gérard Cumont
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
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 EP0414584A2 publication Critical patent/EP0414584A2/en
Publication of EP0414584A3 publication Critical patent/EP0414584A3/en
Application granted granted Critical
Publication of EP0414584B1 publication Critical patent/EP0414584B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/001—Removing cores
    • B22D29/005—Removing cores by vibrating or hammering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B22D31/002—Cleaning, working on castings

Definitions

  • a commonly used foundry process is the lost model process.
  • a part molded by this process has on its walls both inside and outside a residual deposit which must then be removed.
  • the installations hitherto used to ensure this elimination comprise vibrating machines equipped with unbalance motors; the part is then freed from the deposit peeled off by vibrations by leaching with water or by shot blasting.
  • these installations only provide imperfect cleaning and are bulky and non-automated.
  • the present invention relates to an installation for cleaning castings which avoids these drawbacks.
  • the unclogging station by vibration comprises a machine for producing ultrasound and means for transmitting to the foundry part the vibrations generated by the ultrasound produced.
  • the cleaning installation comprises an indexing table 1 which is mounted at rotation about a vertical axis 2 and can be driven by a brake motor 3 so as to pass workpiece fixtures successively past a loading station N1, a vibration cleaning station N2, a blowing station N3 and an N4 ejection station.
  • Each workpiece holder assembly is constituted by a plate 4 whose shape corresponds to that of the part 5 to be cleaned and on which are fixed bezels 6 suitable for holding the part 5 placed on the plate.
  • a plate 7 is provided which is provided with indexing fingers 8 and can be moved vertically by a connecting rod 9 articulated on a crank 10 controlled by a rotary actuator 11, by means of a coupling 12.
  • This plate can pass through an opening 13 of the indexing table 1 and is integral with vertical columns 14 slidably mounted in ball bushings 15. These are linked to the frame 16 of the installation which also supports the bearings 17 of the crank 10 and the rotary actuator 11. When this actuator is actuated, the plate 7 is moved vertically and passes through the opening 13, driving upwards the workpiece support plate 4 which rested on the table 1.
  • the frame 16 carries a fixed soundproofing bell 18 in which the part 5 located on the plate 4 engages when the latter is in the high position; it also carries an ultrasonic emission machine 19 having a tool 20 called “sonotrode” which is mounted on a carriage 21 movable vertically and controlled by a jack 22.
  • This jack thus makes it possible to bring the tool 20 into contact with the part 5 located on the plate 4 inside the bell 18.
  • a plate 7 in which is arranged as the plate 7. It is provided with indexing fingers 8a and is vertically movable by a connecting rod 9 is articulated to a crank 10 to which is mounted in bearings 17 a and controlled by a rotary actuator 11 a , by means of a coupling 12 a .
  • This plate can pass through an opening 13a of the index table 1 and is integral with the vertical columns 14 is slidably mounted in ball sockets 15 a.
  • the frame 16 carries a fixed soundproofing bell 18 a in which engages the part 5 resting on the plate 4 when the latter is in the high position.
  • This bell 18 a is fixed on a bracket 23 supporting an air accumulator 24.
  • the bell 18 a is connected on the one hand to this accumulator 24 and on the other hand to a compressed air network. To this end, it comprises air inlet orifices 25a and 25b.
  • Each workpiece mounting supports a power supply 26 and a distributor 27 directing the air towards the room.
  • the bell also has an orifice 28 connected to a dust collector 29 (see Figure 1).
  • the bracket 23 also supports a jack 30, the piston of which is integral with an element making it possible to clamp the part 5 therein on the plate 4.
  • a flap 31 which is pivotally mounted at 32 relative to the frame and whose the movement is controlled by an indexer 33.
  • This flap is constituted by a plate provided with two indexing fingers 34 and two fingers 35 suitable for locking a workpiece holder mounting on the plate and controlled by a jack 36.
  • a discharge mat 37 On the side of the flap opposite the indexing table 1 is a discharge mat 37 (see Figure 1).
  • a workpiece holder mounting supporting a part 5 to be cleaned is placed on the indexing table 1 at station N1 and passes successively to stations N2, N3 and N4.
  • the part is brought into the high position in the bell 18, by control of the actuator 11 and the tool 20 is brought into contact with the part by the actuator 22;
  • the ultrasounds which are at a frequency of the order of 20 Hz, are transmitted to the part and the vibrations to which this part is subjected ensure detachment of the residual deposit. Then the piece went back down on table 1.
  • the part is brought into the high position in the bell 18 a and clamped by the jack 30.
  • the external compressed air admitted by the orifice 25 a ensures the cleaning of the outside of the part and of the large internal sections. ; that admitted by the orifice 25 b and coming from the accumulator 30 ensures the cleaning of the outside of the parts and of the small internal circuits.
  • the dust is sucked in by the dust collector 29, then the part is unbridled and lowered.
  • the flap 31 by pivoting comes first to anchor under the workpiece holder assembly, then it continues its race to free the assembly from table 1 which is locked on the toilet seat by the jack 36. At the end of the race, the flap assembly and workpiece holder assembly tips and the cleaned part falls by gravity onto the belt conveyor 37 which discharges it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

Installation for cleaning castings, which comprises at least one station for unclogging by means of vibrations. The station N2 for unclogging by means of vibrations comprises a machine (19) for producing ultrasounds and means (20) for transmitting the vibrations generated by the ultrasounds produced to the casting (5). <IMAGE>

Description

Un procédé de fonderie couramment utilisé est celui en modèle perdu. Une pièce moulée par ce procédé présente sur ses parois tant intérieures qu'extérieures un dépôt résiduel qui doit être ensuite éliminé. Les installations utilisées jusqu'à présent pour assurer cette élimination comportent des machines à vibrer équipées de moteurs à balourd; la pièce est ensuite débarrassée du dépôt décollé par les vibrations par un lessivage à l'eau ou par grenaillage. Mais ces installations n'assurent qu'un nettoyage imparfait et sont encombrantes et non automatisables.A commonly used foundry process is the lost model process. A part molded by this process has on its walls both inside and outside a residual deposit which must then be removed. The installations hitherto used to ensure this elimination comprise vibrating machines equipped with unbalance motors; the part is then freed from the deposit peeled off by vibrations by leaching with water or by shot blasting. However, these installations only provide imperfect cleaning and are bulky and non-automated.

La présente invention a pour objet une installation de nettoyage de pièces de fonderie qui évite ces inconvénients.The present invention relates to an installation for cleaning castings which avoids these drawbacks.

Cette installation est caractérisée en ce que le poste de décolmatage par vibrations comporte une machine pour produire des ultra-sons et des moyens pour transmettre à la pièce de fonderie les vibrations engendrées par les ultra-sons produits.This installation is characterized in that the unclogging station by vibration comprises a machine for producing ultrasound and means for transmitting to the foundry part the vibrations generated by the ultrasound produced.

On a décrit ci-après, à titre d'exemple non limitatif, un mode de réalisation de l'installation selon l'invention, avec référence aux dessins annexés dans lesquels

  • La Figure 1 est une vue en plan de l'installation,
  • La Figure 2 est une vue en coupe d'un montage porte-pièce,
  • La Figure 3 est une vue en élévation du poste de nettoyage,
  • La Figure 4 en est une élévation latérale,
  • La Figure 5 est une vue en élévation du poste de soufflage,
  • La Figure 6 en est une élévation latérale,
  • La Figure 7 est une vue en élévation du poste d'éjection.
An embodiment of the installation according to the invention has been described below, by way of non-limiting example, with reference to the appended drawings in which
  • Figure 1 is a plan view of the installation,
  • Figure 2 is a sectional view of a workpiece holder assembly,
  • Figure 3 is an elevational view of the cleaning station,
  • Figure 4 is a side elevation,
  • Figure 5 is an elevational view of the blowing station,
  • Figure 6 is a side elevation,
  • Figure 7 is an elevational view of the ejection station.

Telle qu'elle est représentée aux dessins, l'installation de nettoyage selon l'invention comprend une table d'indexage 1 qui est montée à rotation autour d'un axe vertical 2 et peut être entraînée par un moteur-frein 3 de façon à faire passer des montages porte-pièces successivement devant un poste de chargement N1, un poste de nettoyage par vibrations N2, un poste de soufflage N3 et un poste d'éjection N4.As shown in the drawings, the cleaning installation according to the invention comprises an indexing table 1 which is mounted at rotation about a vertical axis 2 and can be driven by a brake motor 3 so as to pass workpiece fixtures successively past a loading station N1, a vibration cleaning station N2, a blowing station N3 and an N4 ejection station.

Chaque montage porte-pièce est constitué par une plaque 4 dont la forme correspond à celle de la pièce 5 à nettoyer et sur laquelle sont fixés des drageoirs 6 propres à maintenir en position la pièce 5 placée sur la plaque.Each workpiece holder assembly is constituted by a plate 4 whose shape corresponds to that of the part 5 to be cleaned and on which are fixed bezels 6 suitable for holding the part 5 placed on the plate.

Au poste de nettoyage N2, il est prévu une plaque 7 qui est munie de doigts d'indexage 8 et peut être déplacée verticalement par une bielle 9 articulée sur une manivelle 10 commandée par un vérin rotatif 11, par l'intermédiaire d'un accouplement 12. Cette plaque peut traverser une ouverture 13 de la table d'indexage 1 et est solidaire de colonnes verticales 14 montées coulissantes dans des douilles à billes 15. Celles-ci sont liées au bâti 16 de l'installation qui supporte en outre les paliers 17 de la manivelle 10 et le vérin rotatif 11. Lorsque ce vérin est actionné,la plaque 7 est déplacée verticalement et traverse l'ouverture 13 en entraînant vers la haut la plaque porte-pièce 4 qui reposait sur la table 1. Le bâti 16 porte une cloche d'insonorisation fixe 18 dans laquelle vient s'engager la pièce 5 se trouvant sur la plaque 4 lorsque celle-ci est en position haute; il porte également une machine d'émission d'ultra-sons 19 présentant un outil 20 dit "sonotrode" qui est monté sur un chariot 21 mobile verticalement et commandé par un vérin 22. Ce vérin permet ainsi d'amener l'outil 20 au contact de la pièce 5 se trouvant sur la plaque 4 à l'intérieur de la cloche 18.At the cleaning station N2, a plate 7 is provided which is provided with indexing fingers 8 and can be moved vertically by a connecting rod 9 articulated on a crank 10 controlled by a rotary actuator 11, by means of a coupling 12. This plate can pass through an opening 13 of the indexing table 1 and is integral with vertical columns 14 slidably mounted in ball bushings 15. These are linked to the frame 16 of the installation which also supports the bearings 17 of the crank 10 and the rotary actuator 11. When this actuator is actuated, the plate 7 is moved vertically and passes through the opening 13, driving upwards the workpiece support plate 4 which rested on the table 1. The frame 16 carries a fixed soundproofing bell 18 in which the part 5 located on the plate 4 engages when the latter is in the high position; it also carries an ultrasonic emission machine 19 having a tool 20 called "sonotrode" which is mounted on a carriage 21 movable vertically and controlled by a jack 22. This jack thus makes it possible to bring the tool 20 into contact with the part 5 located on the plate 4 inside the bell 18.

Au poste de soufflage N3, il est prévu une plaque 7a qui est agencée comme la plaque 7. Elle est munie de doigts d'indexage 8a et peut être déplacée verticalement par une bielle 9a, articulée sur une manivelle 10a, qui est montée dans des paliers 17a et commandée par un vérin rotatif 11a, par l'intermédiaire d'un accouplement 12a. Cette plaque peut traverser une ouverture 13a de la table d'indexage 1 et est solidaire des colonnes verticales 14a montées coulissantes dans des douilles à billes 15a.At the blow station N3, there is provided a plate 7 in which is arranged as the plate 7. It is provided with indexing fingers 8a and is vertically movable by a connecting rod 9 is articulated to a crank 10 to which is mounted in bearings 17 a and controlled by a rotary actuator 11 a , by means of a coupling 12 a . This plate can pass through an opening 13a of the index table 1 and is integral with the vertical columns 14 is slidably mounted in ball sockets 15 a.

Le bâti 16 porte une cloche d'insonorisation fixe 18a dans laquelle vient s'engager la pièce 5 reposant sur la plaque 4 lorsque celle-ci est en position haute. Cette cloche 18a est fixée sur une potence 23 supportant un accumulateur d'air 24. La cloche 18a est reliée d'une part à cet accumulateur 24 et d'autre part à un réseau d'air comprimé. Elle comporte à cet effet des orifices d'entrée d'air 25a et 25b. Chaque montage porte-pièce supporte un bloc d'alimentation 26 et un distributeur 27 dirigeant l'air vers la pièce. La cloche présente également un orifice 28 relié à un dépoussiéreur 29 (voir Figure 1). La potence 23 supporte également un vérin 30 dont le piston est solidaire d'un élément permettant de brider sur la plaque 4 la pièce 5 qui s'y trouve.The frame 16 carries a fixed soundproofing bell 18 a in which engages the part 5 resting on the plate 4 when the latter is in the high position. This bell 18 a is fixed on a bracket 23 supporting an air accumulator 24. The bell 18 a is connected on the one hand to this accumulator 24 and on the other hand to a compressed air network. To this end, it comprises air inlet orifices 25a and 25b. Each workpiece mounting supports a power supply 26 and a distributor 27 directing the air towards the room. The bell also has an orifice 28 connected to a dust collector 29 (see Figure 1). The bracket 23 also supports a jack 30, the piston of which is integral with an element making it possible to clamp the part 5 therein on the plate 4.

Au poste d'éjection N4 est disposé un abattant 31 qui est monté pivotant en 32 par rapport au bâti et dont le mouvement est commandé par un indexeur 33. Cet abattant est constitué par une plaque munie de deux doigts d'indexage 34 et de deux doigts 35 propres à verrouiller sur la plaque un montage porte-pièce et commandés par un vérin 36. Du côté de l'abattant opposé à la table d'indexage 1 se trouve un tapis d'évacuation 37 (voir Figure 1).At the ejection station N4 there is a flap 31 which is pivotally mounted at 32 relative to the frame and whose the movement is controlled by an indexer 33. This flap is constituted by a plate provided with two indexing fingers 34 and two fingers 35 suitable for locking a workpiece holder mounting on the plate and controlled by a jack 36. On the side of the flap opposite the indexing table 1 is a discharge mat 37 (see Figure 1).

L'installation qui vient d'être décrite fonctionne de la manière suivante. Un montage porte-pièce supportant une pièce 5 à nettoyer est placée sur la table d'indexage 1 au poste N1 et passe successivement aux postes N2, N3 et N4.The installation which has just been described operates in the following manner. A workpiece holder mounting supporting a part 5 to be cleaned is placed on the indexing table 1 at station N1 and passes successively to stations N2, N3 and N4.

Au poste N2, la pièce est amenée en position haute dans la cloche 18, par commande du vérin 11 et l'outil 20 est amené au contact de la pièce par le vérin 22; Les ultra-sons, qui sont à une fréquence de l'ordre de 20 Hz, sont transmis à la pièce et les vibrations auxquelles cette pièce est soumise assurent le décollement du dépôt résiduel. Puis la pièce est redescendue sur la table 1.At station N2, the part is brought into the high position in the bell 18, by control of the actuator 11 and the tool 20 is brought into contact with the part by the actuator 22; The ultrasounds, which are at a frequency of the order of 20 Hz, are transmitted to the part and the vibrations to which this part is subjected ensure detachment of the residual deposit. Then the piece went back down on table 1.

Au poste N3, la pièce est amenée en position haute dans la cloche 18a et bridée par le vérin 30. L'air comprimé extérieur admis par l'orifice 25a assure le nettoyage de l'extérieur de la pièce et des grosses sections intérieures; celui admis par l'orifice 25b et en provenance de l'accumulateur 30 assure le nettoyage de l'extérieur des pièces et des petits circuits internes. En fin de soufflage, les poussières sont aspirées par le dépoussiéreur 29, puis la pièce est débridée et descendue.At station N3, the part is brought into the high position in the bell 18 a and clamped by the jack 30. The external compressed air admitted by the orifice 25 a ensures the cleaning of the outside of the part and of the large internal sections. ; that admitted by the orifice 25 b and coming from the accumulator 30 ensures the cleaning of the outside of the parts and of the small internal circuits. At the end of blowing, the dust is sucked in by the dust collector 29, then the part is unbridled and lowered.

Au poste N4, l'abattant 31 en pivotant vient tout d'abord s'ancrer sous le montage porte-pièce, puis il continue sa course pour dégager de la table 1 le montage qui est verrouillé sur l'abattant par le vérin 36. En fin de course, l'ensemble abattant et montage porte-pièce bascule et la pièce nettoyée tombe par gravité sur le transporteur à bande 37 qui l'évacue.At station N4, the flap 31 by pivoting comes first to anchor under the workpiece holder assembly, then it continues its race to free the assembly from table 1 which is locked on the toilet seat by the jack 36. At the end of the race, the flap assembly and workpiece holder assembly tips and the cleaned part falls by gravity onto the belt conveyor 37 which discharges it.

Claims (8)

1. Installation de nettoyage de pièces de fonderie qui comporte au moins un poste de décolmatage par vibrations,
caractérisée en ce que le poste de décolmatage par vibrations N2 comporte une machine (19) pour produire des ultra-sons et des moyens (20) pour transmettre à la pièce de fonderie (5) les vibrations engendrées par les ultra-sons produits.1. Installation for cleaning foundry parts which includes at least one unclogging station by vibration,
characterized in that the unclogging station by vibration N2 comprises a machine (19) for producing ultrasound and means (20) for transmitting to the foundry piece (5) the vibrations generated by the ultrasound produced. 2. Installation selon la revendication 1,
caractérisée en ce que le poste de décolmatage N2 comprend des moyens (9,10,11) pour soulever la pièce (5) dans une cloche insonorisée (18).2. Installation according to claim 1,
characterized in that the unclogging station N2 comprises means (9,10,11) for lifting the part (5) in a soundproofed bell (18). 3. Installation selon la revendication 1 ou 2,
caractérisée en ce que les moyens (20) de transmission des vibrations sont montés sur un chariot (21) mobile verticalement.3. Installation according to claim 1 or 2,
characterized in that the means (20) for transmitting vibrations are mounted on a vertically movable carriage (21). 4. Installation selon l'une des revendications précédentes,
caractérisée en ce que l'installation comporte un poste de soufflage et d'aspiration N3.4. Installation according to one of the preceding claims,
characterized in that the installation comprises a blowing and suction station N3. 5. Installation selon la revendication 4,
caractérisée en ce que le poste de soufflage et d'aspiration N3 comprend des moyens (9a,10a,11a) pour soulever la pièce (5) dans une cloche insonorisée (18a) qui est reliée d'une part à une source d'air comprimée et d'autre part à un dépoussiéreur (29).5. Installation according to claim 4,
characterized in that the position of blowing and suction N3 comprises means (9, 10a, 11a) for lifting the workpiece (5) in a soundproofed bell (18a) which is connected firstly to a air source compressed and secondly to a dust collector (29). 6. Installation selon la revendication 5,
caractérisée en ce que le poste de soufflage et d'aspiration comprend des moyens (30) pour brider la pièce (5) à l'intérieur de la cloche (18a).6. Installation according to claim 5,
characterized in that the blowing and suction station comprises means (30) for clamping the part (5) inside the bell (18 a ). 7. Installation selon l'une quelconques des revendications précédentes,
caractérisée en ce qu'elle comporte un poste d'éjection N4 des pièces nettoyées qui comprend un abattant basculant (31) et des moyens (35) pour verrouiller un support de pièce sur cet abattant.7. Installation according to any one of the preceding claims,
characterized in that it comprises an N4 ejection station for the cleaned parts which comprises a tilting flap (31) and means (35) for locking a part support on this flap. 8. Installation selon l'une quelconque des revendications précédentes,
caractérisée par une table indexée (1) propre à faire passer devant les divers postes de l'installation des plaques (4) destinées à supporter les pièces (5) à nettoyer.8. Installation according to any one of the preceding claims,
characterized by an indexed table (1) suitable for passing in front of the various stations of the installation of the plates (4) intended to support the parts (5) to be cleaned.
EP19900401928 1989-07-21 1990-07-04 Installation for cleaning castings Expired - Lifetime EP0414584B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8910265A FR2649919B1 (en) 1989-07-21 1989-07-21 INSTALLATION FOR CLEANING FOUNDRY PARTS
FR8910265 1989-07-21

Publications (3)

Publication Number Publication Date
EP0414584A2 true EP0414584A2 (en) 1991-02-27
EP0414584A3 EP0414584A3 (en) 1991-03-06
EP0414584B1 EP0414584B1 (en) 1992-12-16

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ID=9384292

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Application Number Title Priority Date Filing Date
EP19900401928 Expired - Lifetime EP0414584B1 (en) 1989-07-21 1990-07-04 Installation for cleaning castings

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EP (1) EP0414584B1 (en)
DE (1) DE69000598T2 (en)
FR (1) FR2649919B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636437A1 (en) * 1993-07-05 1995-02-01 Adolf Hottinger Maschinenbau GmbH Foundry tools cleaning assembly and method for the production of mould shells or cares
EP0636438A1 (en) * 1993-07-09 1995-02-01 Adolf Hottinger Maschinenbau GmbH Core shot hood cleaning assembly and method for the production of mould shells or cores

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015206376B4 (en) * 2015-04-09 2019-03-28 Volkswagen Aktiengesellschaft Methods and devices for non-contact coring of castings

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD85288A (en) *
DE3219390A1 (en) * 1981-05-27 1982-12-16 Werner Bazenheid Lüber Apparatus for removing core sand from castings
WO1985002136A1 (en) * 1983-11-09 1985-05-23 General Kinematics Corporation Vibratory part scrubber and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD85288A (en) *
DE3219390A1 (en) * 1981-05-27 1982-12-16 Werner Bazenheid Lüber Apparatus for removing core sand from castings
WO1985002136A1 (en) * 1983-11-09 1985-05-23 General Kinematics Corporation Vibratory part scrubber and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636437A1 (en) * 1993-07-05 1995-02-01 Adolf Hottinger Maschinenbau GmbH Foundry tools cleaning assembly and method for the production of mould shells or cares
EP0636438A1 (en) * 1993-07-09 1995-02-01 Adolf Hottinger Maschinenbau GmbH Core shot hood cleaning assembly and method for the production of mould shells or cores

Also Published As

Publication number Publication date
FR2649919A1 (en) 1991-01-25
DE69000598T2 (en) 1993-05-19
EP0414584B1 (en) 1992-12-16
DE69000598D1 (en) 1993-01-28
EP0414584A3 (en) 1991-03-06
FR2649919B1 (en) 1991-10-04

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