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EP0781179B1 - Dispositif permettant d'inserer une piece dans un noyau de fonderie a completer pour en faire un paquet de noyaux - Google Patents

Dispositif permettant d'inserer une piece dans un noyau de fonderie a completer pour en faire un paquet de noyaux Download PDF

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Publication number
EP0781179B1
EP0781179B1 EP95929769A EP95929769A EP0781179B1 EP 0781179 B1 EP0781179 B1 EP 0781179B1 EP 95929769 A EP95929769 A EP 95929769A EP 95929769 A EP95929769 A EP 95929769A EP 0781179 B1 EP0781179 B1 EP 0781179B1
Authority
EP
European Patent Office
Prior art keywords
core
component
containers
magazine
container
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 - Lifetime
Application number
EP95929769A
Other languages
German (de)
English (en)
Other versions
EP0781179A1 (fr
Inventor
Werner Landua
Werner Pichler
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.)
Hottinger Maschinenbau GmbH
Original Assignee
Hottinger Maschinenbau GmbH
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 DE4434193A external-priority patent/DE4434193C1/de
Application filed by Hottinger Maschinenbau GmbH filed Critical Hottinger Maschinenbau GmbH
Publication of EP0781179A1 publication Critical patent/EP0781179A1/fr
Application granted granted Critical
Publication of EP0781179B1 publication Critical patent/EP0781179B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/103—Multipart cores

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • Devices for producing core packages are already from numerous publications known. Reference is made to DE-OS 23 04 564 only by way of example. It is also known from practice to combine those to form a core package Cores in a production line with several core shooters or shooting stations to manufacture, with the core package at each shooting station one more Core is supplemented. For this purpose, the cores on one of the individual shooting stations continuous transfer part filed, this transfer part usually at the same time as Lower part of the tool used in the first shooting station.
  • this is a device for inserting any parts in or on a foundry core, the part or parts together with the Foundry cores are packaged into a core package. Consequently, here Parts inlaid that at least mostly not from shot core sand consist.
  • the device in question here is merely exemplified and discussed for better understanding using parts that are known as so-called Sieve inserts or solidifying sieves placed in a foundry core or on one Foundry core be put on.
  • the core package in a lower one Area with a sieve insert or a so-called solidification sieve, by which poured the molten metal and from below into the core package climb up and thus fill the form.
  • the sieve insert is usually a braided, fine-mesh sieve, which consists of a wire with a diameter of about 0.5 mm is made.
  • the sieve has a total diameter of about 6 cm and has a mesh size of 2 mm. Overall, the sieve has a thickness of approximately 1.3 mm, which is only an exemplary embodiment.
  • the lower core usually has a corresponding edge recess for fixing the screen in the area of the pouring channel into which the sieve - so far - has been placed by hand becomes. If the sieve is to be inserted into the lower core, it must be inserted by Hand after the first shooting station. Do you want the shot - lower - The operator must remove the core from the transfer part insert between the first and the second shooting station, for which the The area between the first and second shooting station must be freely accessible. Apart from the precautions required here to avoid accidents at work inserting the sieve by hand is not only tedious, but also always faulty. Otherwise, due to the previously required here manual activity Reduce cycle times only to a limited extent or not at all.
  • the present invention is based on the object of a device for To insert a part into a foundry core to be added to a core package, with the fully automatic handling of the part to be inserted and fully automated core packaging is therefore possible.
  • the device according to the invention achieves the above object through the features of claim 1.
  • the sieve or the to be provided and Part to be inserted provided in a magazine.
  • a manipulator is used for recording the part from the magazine and to deliver the part to the foundry.
  • a transfer device is provided which is used to move the manipulator between the magazine or the removal station of the magazine and the Foundry core or the delivery station of the manipulator is used.
  • the part to be inserted is provided in an associated unit and the Production process fed between two core shooting stations.
  • the use of a Operator is - apart from the replacement or refilling of a magazine - not necessary anymore.
  • this one preferably has vertically arranged containers for the parts.
  • a retractable into the container from below the parts in a delivery position lifting device is provided so that the parts up to the last Part up through the container to the delivery position.
  • the lifting device is in a further advantageous manner as a lifting spindle with a Parts carrying or lifting lifting plate executed, the lifting plate preferably has a smaller diameter than the parts.
  • a sensor for determining the presence in the dispensing position of a part is located in further advantageously a sensor for determining the presence in the dispensing position of a part.
  • This sensor is mainly used to control the lifting device, so that the lifting spindle is activated after removal of a part, so that the part underneath is lifted into the delivery position.
  • the sensor could be in further advantageously be designed as a light sensor. Inductive, capacitive or sensors working according to the eddy current principle would also come here depending on the material of the parts also in question.
  • the container is designed as a circular tube in cross section.
  • This tube could then in turn be at least partially encompassed by a holder, the tube for Grip and slide out of the holder must be accessible. Because the jack screw with the lifting plate entering the tube from below, the tube could be at the bottom End have an inner edge that prevents the parts from falling out.
  • the tube could be closed by a special end part, which press into the tube by operating the lifting spindle or the lifting plate leaves.
  • the material to be used it is ultimately from very special advantage if the container is made of recycled or recyclable Plastic or cardboard is made. In this respect, hazardous waste is effective avoided.
  • the manipulator is used on the one hand to record and on the other hand for delivering the parts.
  • the manipulator could be a special one Pick-up device for picking up the part from the magazine and a lifting device for lifting the part from the magazine and lowering the part on the foundry core include.
  • Another manipulator could also be used for detection be assigned to a recorded part, so that before the method of Manipulator ensures that the receiving device is actually a part holds.
  • This sensor could be like the one assigned to the magazine delivery station Sensor be designed as a light sensor.
  • an inductive, capacitive or sensor working according to the eddy current principle - depending on the material handling parts - in question.
  • the recording device next to a recording plate for positioned recording of the part have a preferably centrally formed holding magnet.
  • Other magnets lying in one plane could also be provided. in the In the case of two magnets, these could be about an axis of rotation of the receiving device be arranged opposite each other.
  • Holding magnets - depending on the nature of the part to be lifted - also other holding devices be provided.
  • a suction device can be used.
  • the previously proposed holding magnet could be a permanent magnet or an electromagnet be executed.
  • an electromagnet it could the parts are released simply by deactivating the magnet.
  • an electromagnet to be fed with direct current could be used, whose supply voltage is so low that it is just a partial and only one part - can lift. Once this part has been recorded or lifted off, the full operating voltage is applied so that the part during transfer is kept secure.
  • the holding magnet is outside, preferably is above the level of the receiving plate and from the receiving plate is spaced that when contacting the parts or the upper part by the Recording plate only "adheres" to a single part and is removable.
  • a permanent magnet is the distance between the holding magnet and the part - by spacing from the receiving plate - designed so that one part is just adhering, the adherence of an underlying second However, it is definitely excluded.
  • the receiving plate is flexible together with the holding magnet and can be pressed against the parts by spring force. Because of this configuration can the holding device via the lifting device of the manipulator Drive onto the parts until they are completely in contact, thereby destroying the parts is avoided by springback of the holding device or the receiving plate. Together with the receiving plate, the holding magnet also springs back, so that the predetermined or set distance between the holding magnet and the part is not reduced. The sticking of only one of the parts to be picked up is thus also guaranteed in this respect.
  • the receiving plate has engagement means in a very particularly advantageous manner accurate contacting of the container or one arranged above Feed nozzle on. These engagement means serve for the quasi coupling of the receiving plate to the container or the feed nozzle, so that the part is exactly positioned - especially for later delivery to the foundry core. A Adjustment when putting down the part that is now picked up is therefore not necessary.
  • the recorded and Release the transferred part by deactivating the electromagnet or can do so Part can be dropped when the electromagnet is deactivated.
  • a permanent magnet as a holding magnet to retract the holding magnet for deactivation so far that it is on the previously held part no longer holds.
  • This Retraction means could in turn be a preferably pneumatic cylinder-piston arrangement be executed so that the holding magnet for storing the Partly withdrawn by means of the cylinder-piston arrangement, i.e. removed from the part becomes.
  • the Container by means of a so-called rotary indexing table under a fixed bridge or Movable within a housing and under one in the bridge or in the housing inserted at the upper end, extending towards the receiving device Feed nozzles can be positioned.
  • the parts could then - by means of the lifting plate - Can be pushed through recesses in the bridge or through the feed pipe or be liftable.
  • the feed nozzle itself would then form the delivery station which in turn is monitored by the aforementioned sensor or light sensor.
  • the manipulator - for the simultaneous transfer of, for example, two parts - two of the receiving devices previously discussed exhibit. These recording facilities would then be appropriate the position of the pairs opposite containers arranged.
  • These two receiving devices could be firmly connected to one another via a web be connected, the one used to raise and lower the manipulator Lifting device could preferably carry the web in the middle. If necessary, could here a rotary connection can be provided so that the receiving devices around a vertical axis are pivotable. Here an adjustment to the exact Position or angular position of the foundry cores to be loaded take place.
  • this comprises a preferably linear guide unit.
  • this linear guide unit could be the lifting device of the manipulator - rigid or flexible - be articulated.
  • the linear guide unit could in turn be one have rodless linear cylinder, which is the linear method of Manipulator is particularly suitable.
  • the parts to be used are very particularly advantageously around sieves that serve as casting aids for the molten metal to be poured in.
  • These sieves are also referred to as solidification sieves and preferably in one recess formed in the lower foundry core of a core package.
  • the following description of the figures refers exclusively to the insertion this so-called solidification sieve in the lower foundry core of a core package.
  • Fig. 1 shows a schematic representation of an embodiment of an inventive Device for inserting a part into a core package to additional foundry core 1, namely between two core shooting stations 2 or core shooters.
  • the two foundry cores 1 are on one Transfer part 3, which is the lower tool part from the first core shooting station 2 can act.
  • On the transfer part 3 there are two at the same time Foundry cores 1 that were shot at the same time.
  • the foundry cores 1 point an opening 4 for the melted to be later poured into the complete core package Metal on, the lowest foundry core 1 has an edge recess 5 for inserting the part or - in this case - the sieve 6 having. This edge recess 5 is only indicated in Fig. 1.
  • FIGS. 2 and 3 show particularly clearly that a magazine 7 for providing the Siebes 6, a manipulator 8 for receiving the sieve 6 from the magazine 7 and Delivery of the screen 6 to the foundry core 1 and a transfer device 9 for Movement of the manipulator 8 between the magazine 7 and the foundry core 1 are provided.
  • the magazine 7 has a vertical as shown in FIGS. 2 and 3 arranged container 10 for the sieves 6 and one from below into the container 10 retractable lifting device 12 which raises the screens 6 into a delivery position 11 on.
  • the lifting device 12 in turn comprises a lifting spindle 13 with one of the sieves 6 supporting or lifting lifting plate 14.
  • a sensor 15 is provided for determining the presence of a sieve 6.
  • This sensor 15 serves to control the lifting device 12.
  • the sensor 15 is designed as a light sensor and detects from the side forth through an opening provided in a feed pipe 16.
  • the container 10 is designed as a tube. According to the representations in FIGS. 2 and 3, the container 10 is partially one Grasped holder 17 or pushed into it. The container is for removal 10 or the tube easily accessible. In the present case, the container is 10 made of cardboard, so that environmentally harmful waste avoided are.
  • the manipulator 8 has a receiving device 18 for receiving the screen 6 from the magazine 7 and a lifting device 19 for lifting the screen 6 from the magazine 7 and for lowering the screen 6 onto the Foundry core 1 on.
  • the manipulator 8 could not be one in the figures have shown sensor for detecting a recorded screen 6. This The sensor would then advantageously be designed as an inductive sensor, with here just as capacitive, working according to the eddy current principle or even optical sensors are conceivable.
  • the screens 6 are made of magnetic Material made.
  • the receiving device 18 has one Receiving plate 20 and a holding magnet assigned centrally to the receiving plate 20 21, which are two permanent magnets above the level of the receiving plate 20 and are arranged one behind the other and thus are not visible together in the figure.
  • the holding magnet 21 is from the receiving plate 20 spaced such that when contacting an uppermost sieve 6 only a single screen 6 can be lifted off by the receiving plate 20.
  • FIG. 3 also shows that the receiving plate 20 together with the Holding magnet 21 resilient and spring-loaded against the sieves 6 can be pressed in magazine 7.
  • Compressible springs 22 are provided for this purpose Area of a guide act between the receiving plate 20 and a receptacle 23.
  • FIG. 3 shows that the receiving plate 20 engages means 24 for accurate contacting of the container 10 or the one arranged above it Has feed connector 16. Another cumbersome positioning of the receiving plate 20 is therefore not necessary.
  • the receiving device 18 has retraction means 25 for removing the holding magnet 21 from the receiving plate 20.
  • the retraction means are pneumatic working cylinder-piston arrangement executed.
  • the magazine has 7 a total of eight containers 10, which in the sense of a revolver magazine by one common axis of rotation 26 are arranged around. It is essential that the containers 10 are each diametrically opposite, two opposite each other Containers 10 have the same distance from each other as the positioned Foundry cores 1. Reference is made in particular to the illustration in FIG. 1.
  • Fig. 2 shows that the container 10 by means of a rotary indexing table 27 below a fixed bridge 28 or in a machine frame 29 can be moved. Under that inserted into the bridge 28, which extends towards the receiving device 18 Feed pipe 16, the container 10 can be positioned exactly, the Sieves 6 through recesses in the bridge 28 or through the feed pipe 16 in the delivery position 11 can be pushed through. As mentioned earlier, the Sensor 15 each assigned to the feed connector 16.
  • the manipulator 8 has two receiving devices 18. These reception facilities 18 are corresponding to the position of the pairs opposed to each other Container 10 arranged or spaced accordingly.
  • the reception facilities 18 are firmly connected to one another via a web 30, the Lifting device 19 carries the web 30 in the middle.
  • the transfer device 9 is a linear guide unit 31 comprises, to which the lifting device 19 of the manipulator 8 is articulated is.
  • the linear guide unit 31 comprises in the embodiment chosen here a rodless linear cylinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Casting Devices For Molds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Claims (14)

  1. Dispositif permettant d'insérer une pièce dans un noyau de fonderie à compléter pour en faire un paquet de noyaux entre deux postes de tirage de noyaux,
    caractérisé en ce que sont prévus un magasin (7) pour la mise à disposition de la piéce (6), un manipulateur (8) pour recevoir la pièce (6) à partir du magasin (7) et pour la livrer au noyau de fonderie (1) et une installation de transfert (9) pour le déplacement du manipulateur (8) entre le magasin (7) et le noyau de fonderie (1).
  2. Dispositif suivant la revendication 1, caractérisé en ce que le magasin (7) présente un réservoir (10) disposé de préférence verticalement pour les pièces (6) et une installation de levage (12) pouvant être engagée depuis le bas et soulevant les pièces (6) jusqu'à une position d'évacuation (11) et ayant de préférence la forme d'une tige de levage (13) avec un plateau de levage (14) qui porte ou qui soulève les pièces (6).
  3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que dans la position d'évacuation (11), à savoir à l'extrémité supérieure du réservoir (10) ou encore au-dessus du réservoir (10), est prévu un capteur permettant de constater la présence d'une pièce (6) et en ce que le capteur (15) sert à la commande de l'installation delevage (12), le capteur ayant de préférence la forme d'un capteur à cellule photo-électrique.
  4. Dispositif suivant la revendication 2 ou 3, caractérisé en ce que le réservoir (10) a la forme d'un tube et est enserré au moins partiellement par un support (17), et où le réservoir (10) est de préférence fabriqué en matière synthétique ou en carton.
  5. Dispositif suivant l'une quelconque des revendications de 1 à 4, caractérisé en ce que le manipulateur (8) comprend un dispositif de réception (18) pour la réception de la pièce (6) en provenance du magasin (7) et une installation de levage (19) pour soulever la pièce (6) depuis le magasin (7) et pour faire descendre la pièce (6) sur le noyau de fonderie (1).
  6. Dispositif suivant l'une quelconque des revendications de 1 à 5, caractérisé en ce que le manipulateur (8) comprend un capteur (15) pour la détection d'une pièce reçue, capteur qui peut fonctionner au moyen d'une cellule photo-électrique, par inductance, par le principe capacitif ou des courants de Foucault.
  7. Dispositif suivant la revendication 5 ou 6, où les pièces sont magnétiques, caractérisé en ce que le dispositif de réception (18) comprend un plateau de réception (20) et un aimant de retenue (21) de préférence central et en ce que l'aimant de retenue (21) ou les aimants de retenue est ou sont situés de préférence au-dessus du plan du plateau de réception (20) et est ou sont distants du plateau de réception (20) de manière telle que lorsque les pièces (6) viennent en contact avec le plateau de réception (20), une seule pièce (6) peut être soulevée, tandis que le plateau de réception (20), conjointement avec l'aimant de retenue (21) peut être sollicité de manière souple et sous l'action d'une force d'un ressort vers les pièces (6) et présente des moyens de saisie (24) assurant un contact en position exacte avec le réservoir (10) ou avec une tubulure (16) disposée au-dessus du réservoir, moyens de saisie qui servent également au positionnement de la pièce (6) reçue.
  8. Dispositif suivant la revendication 7, caractérisé en ce que des moyens de retrait (25) pour retirer l'aimant de retenue (21) du plateau de réception (20) sont prévus et en ce que les moyens de retrait (25) ont la forme d'un ensemble cylindre et piston fonctionnant par voie pneumatique ou d'un aimant à course réduite.
  9. Dispositif suivant l'une quelconque des revendications de 1 à 8, caractérisé en ce qu'au moins deux réservoirs (10) distants l'un de l'autre sont prévus et en ce que les réservoirs (10) sont disposés en ligne et peuvent de préférence être déplacés en ligne, plusieurs réservoirs (10) étant disposés à la façon d'un barillet de revolver et plusieurs magasins type barillet peuvent être disposés côte à côte de manière telle que les réservoirs (10) correspondants de chaque paire de réservoirs des magasins type barillet présentent entre eux la même distance que la distance entre les noyaux de fonderie à compléter.
  10. Dispositif suivant la revendication 9, où chaque fois deux noyaux de fonderie (1) disposés côté à côte doivent être complétés par une pièce (6), caractérisé en ce que les réservoirs (10) sont disposés par paires diamétralement opposés autour d'un axe de rotation (26), et en ce que les réservoirs (10) opposés de chaque paire ont entre eux la même distance que la distance entre les noyaux de fonderie (1) positionnés, et en ce que de préférence huit réservoirs (10) sont prévus.
  11. Dispositif suivant la revendication 9 ou 10, caractérisé en ce que les réservoirs (10) sont, par l'intermédiaire d'une table de commande circulaire, mobiles au-dessous d'un pont (28) fixe et peuvent être positionnés au-dessous d'une tubulure d'alimentation (16) montée dans le pont (28) et dirigée vers le dispositif de réception (18), et en ce que les pièces (6) peuvent être glissées au travers des évidements dans le pont (28) ou au travers la tubulure d'alimentation (16), le capteur (15) étant de préférence associé à la tubulure d'alimentation (16).
  12. Dispositif suivant l'une quelconque des revendications de 1 à 11, caractérisé en ce que le manipulateur (8) présente deux dispositifs de réception (18) et en ce que les dispositifs de réception (18) sont disposés conformément à la position des paires de réservoirs (10) opposés, le dispositifs de réception (18) étant rigidement reliés par l'intermédiaire d'une traverse (30) tandis que l'installation de levage (19) supporte de préférence la traverse (30) en son milieu.
  13. Dispositif suivant l'une quelconque des revendications de 1 à 12, caractérisé en ce que le dispositif de transfert (9) comprend une unité de guidage linéaire (31) sur laquelle est articulée l'installation de levage (19) du manipulateur (8) et en ce que l'unité de guidage (31) présente un cylindre linéaire sans tige de piston.
  14. Dispositif suivant l'une quelconque des revendications de 1 à 13, caractérisé en ce que les pièces à placer sont des tamis (6), qui en tant que tamis dits de solidification peuvent être placés dans un évidement pratiqué de préférence dans le noyau de fonderie (1) inférieur d'un paquet de noyaux (5).
EP95929769A 1994-09-12 1995-09-07 Dispositif permettant d'inserer une piece dans un noyau de fonderie a completer pour en faire un paquet de noyaux Expired - Lifetime EP0781179B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4432323 1994-09-12
DE4432323 1994-09-12
DE4434193 1994-09-24
DE4434193A DE4434193C1 (de) 1994-09-12 1994-09-24 Vorrichtung zum Einlegen eines Teils in einen zu einem Kernpaket zu ergänzenden Gießereikern
PCT/DE1995/001217 WO1996008327A1 (fr) 1994-09-12 1995-09-07 Dispositif permettant d'inserer une piece dans un noyau de fonderie a completer pour en faire un paquet de noyaux

Publications (2)

Publication Number Publication Date
EP0781179A1 EP0781179A1 (fr) 1997-07-02
EP0781179B1 true EP0781179B1 (fr) 1999-03-31

Family

ID=25940030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95929769A Expired - Lifetime EP0781179B1 (fr) 1994-09-12 1995-09-07 Dispositif permettant d'inserer une piece dans un noyau de fonderie a completer pour en faire un paquet de noyaux

Country Status (5)

Country Link
US (1) US5758710A (fr)
EP (1) EP0781179B1 (fr)
JP (1) JPH10506056A (fr)
ES (1) ES2130637T3 (fr)
WO (1) WO1996008327A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5752564A (en) 1997-01-08 1998-05-19 Amsted Industries Incorporated Railway truck castings and method and cores for making castings
US6913063B2 (en) * 2003-04-02 2005-07-05 Toyota Motor Manufacturing North America, Inc. Apparatus and method for inserting parts into a mold
FR2879751B1 (fr) 2004-12-20 2007-02-23 Johnson Controls Tech Co Dispositif de mesure d'un courant circulant dans un cable
KR101755252B1 (ko) * 2015-11-17 2017-07-07 동양피스톤 주식회사 피스톤 제조용 에코 금형 장치와 피스톤 제조용 금형 장치 및 피스톤 제조 방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2304564A1 (de) * 1973-01-31 1974-08-08 Cobomat Apparatebau Gmbh Vorrichtung zur automatischen herstellung von formen und kernen fuer giessereizwecke
DK159598C (da) * 1983-04-18 1991-04-15 Dansk Ind Syndikat Manoevreringsapparat til brug i stoeberianlaeg
DE4334857C1 (de) * 1993-10-13 1994-10-13 Hottinger Adolf Masch Vorrichtung zum Kernpaketieren

Also Published As

Publication number Publication date
EP0781179A1 (fr) 1997-07-02
ES2130637T3 (es) 1999-07-01
US5758710A (en) 1998-06-02
JPH10506056A (ja) 1998-06-16
WO1996008327A1 (fr) 1996-03-21

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