EP0592365B1 - Procédé et dispositif pour commander le déplacement d'une poche de couleé dans une installation de couleé - Google Patents

Procédé et dispositif pour commander le déplacement d'une poche de couleé dans une installation de couleé Download PDF

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Publication number
EP0592365B1
EP0592365B1 EP93810686A EP93810686A EP0592365B1 EP 0592365 B1 EP0592365 B1 EP 0592365B1 EP 93810686 A EP93810686 A EP 93810686A EP 93810686 A EP93810686 A EP 93810686A EP 0592365 B1 EP0592365 B1 EP 0592365B1
Authority
EP
European Patent Office
Prior art keywords
pouring
ladle
tilting
lifting
pouring ladle
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
EP93810686A
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German (de)
English (en)
Other versions
EP0592365A1 (fr
Inventor
Fritz Mezger
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.)
Maschinenfabrik and Eisengiesserei Ed Mezger AG
Original Assignee
Maschinenfabrik and Eisengiesserei Ed Mezger AG
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.)
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Publication date
Application filed by Maschinenfabrik and Eisengiesserei Ed Mezger AG filed Critical Maschinenfabrik and Eisengiesserei Ed Mezger AG
Publication of EP0592365A1 publication Critical patent/EP0592365A1/fr
Application granted granted Critical
Publication of EP0592365B1 publication Critical patent/EP0592365B1/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
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D39/00—Equipment for supplying molten metal in rations
    • B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
    • B22D39/026—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume using a ladler

Definitions

  • the present invention relates to a method for controlling the movement of a ladle.
  • Existing automatic pouring systems for repeated, controlled filling of liquid metals from a tiltable pan into molds that are fed in succession function as follows: the melt runs out of the pan over a snout stone with the radius R, the tilting axis of the pan being at least approximately through the center of this radius. runs in such a way that, regardless of the tilt angle of the pan, approximately the same geometrical and therefore fluidic conditions are achieved. Tilting takes place via a regulated drive, which engages the pan via mechanical connecting links. To regulate this tilt drive, measuring probes can be provided and / or the casting process can be largely permanently programmed.
  • the movements around the tilting axis result in flowing movements or wave movements in the melt contained in the casting ladle, which occur during the rapid tilting back and again tilting the ladle forward between two successive pouring processes does not come to rest and at least at the beginning of each pouring process influence the outflow of the melt and thus make it difficult or impossible to master the pouring process reliably. It was therefore necessary to wait at least two to three seconds between the end of the pour and the start of pouring, otherwise the control process would be too disrupted.
  • the aim of the present invention is to reduce the casting time for a mold on the one hand and the time between two molds on the other without impairing the control process and thus to increase the cycle sequence of the casting of molds.
  • the melt is accelerated or slowed down much less or formulated differently, much less kinetic energy is introduced into the melt, so that the wave movements are significantly reduced.
  • a particularly simple measure according to the invention consists in that the tilting axis is raised or lowered in order to tilt the ladle around the center of gravity of the melt.
  • a particular advantage of this system is that the tilting drive and the lifting device of the system can be controlled together without additional tilting movement for the additional raising of the casting ladle. This makes it possible to additionally raise the ladle and, with a sufficient safety distance to a casting mold, to introduce it relatively far from the center of this mold and then to initiate the casting process.
  • Fig. 1 shows more or less schematically a conventional casting plant with a tiltable ladle 1, in which the melt 1a is located.
  • 1 shows the state in which a casting mold 2 has just been filled with melt, that is to say the casting process is to be ended by tilting the casting ladle 1 backwards.
  • a tilt drive 3 is pivoted about a tilt axis 6 via a pulling element 4, which acts on a segment 4a.
  • the ladle 1 is normally interchangeably inserted in a frame to which the segment 4a and the tilt axis 6 are attached.
  • the tilt drive 3 and the tilt axis 6 are mounted in a frame 5.
  • the pouring opening or pouring channel of the ladle 1 has a radius R with respect to the tilt axis 6. 1 also shows a sensor 7, with the aid of which it is determined when the melt rises in the pouring funnel and the casting process is to be ended.
  • the ladle is tilted clockwise about the tilt axis 6 by means of the tilt drive 3 via the pulling element 4, so that no more melt flows into the mold 2.
  • Fig. 1 it is clearly visible that with this tilting movement practically the entire volume of the melt 1a lies to the side of the tilting axis 6 and thus undergoes a considerable acceleration downwards overall.
  • FIG. 2 corresponding system parts are identified in the same way as in FIG. 1.
  • the difference is that the tilting axis 6 is no longer fixed in the machine frame.
  • the tilt axis 6 is attached to side supports 8 which are vertically displaceable in guides 9.
  • the piston rod 11 of a hydraulic drive cylinder engages which allows the supports 8 to be lifted and lowered vertically with the tilt axis 6, as the arrow indicates.
  • This lifting movement is indicated in FIG. 2, ie the drawing shows the tilt axis 6 in an upper end position, from which it can be lowered by an amount h into a lower, dash-dotted position.
  • the tilt axis 6 is additionally designated with K the point of application of the traction element 4 at sector 4a with D and the center of gravity of the melt with S. 3 now shows the conditions when the ladle tilts backwards to end a casting process according to claim 3.
  • the movement control is carried out in such a way that the tilt axis 6 is raised at a speed V K and the traction element 4 is raised at a speed V D. It can be seen from the diagram in FIG. 3 that in this case there is no vertical movement in the center of gravity S of the melt.
  • the tilting movement thus takes place practically around the center of gravity of the melt, which leads to the advantages mentioned above.
  • the movements take place in reverse, but the path at point D can then be selected somewhat smaller in order to additionally tilt the ladle forward.
  • the relatively rapid raising or lowering of the tilt axis 6 or the pouring spout also has the advantage that a pouring process is interrupted faster and that a new pouring process is also initiated faster without the disadvantages of known systems appearing.
  • the shape of the ladle 1 is chosen so that the position of the center of gravity S with different content of the The ladle does not move significantly in the horizontal direction, so that no fundamental control of the movements in function of the pan content is absolutely necessary.
  • Fig. 4 largely corresponds to Fig. 2, again corresponding parts being identified identically.
  • a lower position of the ladle 1 is denoted by 1 '.
  • the ladle When pouring, the ladle must maintain a minimum distance A from the mold 2. With the ladle in this lower position, you could only reach the center of the mold by the amount X1 against the mold center if you want to maintain the safety distance A. However, if you lift the ladle overall from this lower position to the upper position shown in a solid line, the tilting axis and thus the pouring spout can obviously continue to enter the center of the mold 2 by the amount X2 while maintaining the safety distance A.
  • the position of the tilt axis that can then be reached is indicated by 6 'in dash-dotted lines. It is of course a corresponding shift the carrier 5 of the tilt drive 3 of the guide 9 and the carrier 8 in a position 5 ', 3', 9 'or 8' offset to the left possible.
  • the lifting drive for the tilting axis 6 now allows this possibility to be used in a simple manner by lifting the casting ladle 1 overall by means of the lifting drive and the tilting drive in order to get closer to the mold center with the pouring jet. Later, when the ladle is tilted more, you can lower it back to the normal position and control the lift drive and the tilt drive according to the usual program in the manner described.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Claims (8)

  1. Procédé pour la commande des mouvements d'une poche de coulée (1) au moyen de deux dispositifs de levage (3, 4; 8), l'axe réel resp. l'axe virtuel autour duquel la poche de coulée (1) est basculée se trouvant dans le centre du rayon (R) du bec de coulée pendant l'opération de coulée, caractérisé en ce que pour amorcer et terminer la coulée, l'axe réel resp. virtuel est déplacé au moins approximativement dans le centre de gravité de la fonte.
  2. Procédé selon la revendication 1, caractérisé en ce que pour basculer la poche de coulée (1) afin d'amorcer et terminer la coulée, un axe de basculement (6) dans le centre du chenal de coulée est soulevé resp. abaissé.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le mouvement de soulèvement resp. d'abaissement de l'axe de basculement (6) est coordonné avec le mouvement d'élévation resp. d'abaissement qui effectue le basculement de la poche de coulée de telle manière que l'axe de basculement virtuel du mouvement de la poche est approché du centre de gravité (S) de la fonte.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la quantité de fonte (1a) est déterminée et les opérations de basculement sont commandées en fonction de cette quantité.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la poche de coulée (1) est additionnellement soulevée au début de la coulée au moyen d'un dispositif de levage (3, 4) effectuant le basculement de ladite poche et au moyen d'un dispositif de levage (8 à 11) pour l'axe de basculement (6) afin de permettre, à une hauteur de coulée donnée, une coulée plus proche du centre du moule (2).
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que pour préparer la coulée, les dispositifs de levage (8 à 11) sont commandés conjointement et essentiellement sans mouvement de basculement pour soulever additionnellement la poche de coulée (1).
  7. Installation de coulée comprenant une poche de coulée (1) capable d'être commandée au moyen de deux dispositifs de levage (3, 4; 8) dont l'un agit sur le bec de coulée et l'autre sur l'autre côté de la poche de coulée, ainsi qu'une commande commune des mouvements des deux dispositifs de levage, caractérisée en ce que les deux mouvements de levage sont capables d'être commandés au moyen d'entraînements (3, 4 resp. 11) mutuellement indépendants, et que le mouvement de levage (6) agissant sur le bec de coulée est guidé au moyen d'un guidage (9).
  8. Installation selon la revendication 7, caractérisée par des moyens permettant de déterminer la quantité de fonte (1a) contenue dans la poche de coulée et d'influencer la commande des mouvements en fonction de ladite quantité.
EP93810686A 1992-10-07 1993-09-28 Procédé et dispositif pour commander le déplacement d'une poche de couleé dans une installation de couleé Expired - Lifetime EP0592365B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH313592 1992-10-07
CH3135/92 1992-10-07

Publications (2)

Publication Number Publication Date
EP0592365A1 EP0592365A1 (fr) 1994-04-13
EP0592365B1 true EP0592365B1 (fr) 1997-08-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810686A Expired - Lifetime EP0592365B1 (fr) 1992-10-07 1993-09-28 Procédé et dispositif pour commander le déplacement d'une poche de couleé dans une installation de couleé

Country Status (4)

Country Link
US (1) US5381855A (fr)
EP (1) EP0592365B1 (fr)
JP (1) JPH06190541A (fr)
DE (1) DE59307156D1 (fr)

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JP3079018B2 (ja) * 1995-04-19 2000-08-21 藤和機工株式会社 自動注湯方法及び装置
NO300745B1 (no) * 1995-05-02 1997-07-14 Ind Informasjonsteknologi As Fremgangsmåte for bestemmelse av mengde flytende metall i stöpeovner
EP0747152B1 (fr) * 1995-06-07 1999-07-28 Inductotherm Corp. Système vidéo pour le positionnement d'une poche de coulée
WO1997024200A1 (fr) * 1995-12-29 1997-07-10 Fritz Lauper Procede et dispositif de commande du deplacement d'une poche de coulee a une hauteur reduite de coulee dans une fonderie
JPH09212243A (ja) * 1996-02-02 1997-08-15 Santoku Kinzoku Kogyo Kk 容器内液状物の傾倒流量制御装置およびその制御方法
US5792378A (en) * 1996-08-02 1998-08-11 Lockheed Martin Advanced Environmental Systems, Inc. Method and apparatus for controlling the flow rate and aiming when pouring molten material from a container
CA2292650C (fr) * 1997-06-27 2005-10-25 Hubo Engineering Gmbh Methode et dispositif pour controler le mouvement d'une poche de coulee a faible hauteur de coulee dans une installation de coulee
US6168053B1 (en) 1999-06-21 2001-01-02 Consarc Corporation Positioning apparatus and method for precision pouring of a liquid from a vessel
US6896032B1 (en) * 2002-09-26 2005-05-24 Hayes Lemmerz International, Inc. Stopper-poured molten metal casting vessel with constant head height
US6892791B1 (en) * 2002-12-20 2005-05-17 Hayes Lemmerz International Trajectory compensation for tiltable stopper-poured molten metal casting vessel
TWI280166B (en) * 2002-12-26 2007-05-01 Toshiba Machine Co Ltd Liquid material feed apparatus of die casting machine, liquid material feed method, and ladle
US7775257B2 (en) * 2004-09-02 2010-08-17 University Of Cape Town Casting method and apparatus
TWI466740B (zh) 2007-02-15 2015-01-01 Sintokogio Ltd 自動注入方法及裝置
EP2427283B1 (fr) * 2009-05-08 2019-12-11 Sintokogio, Ltd. Voie de transport pour transporter le métal en fusion
JP5408793B2 (ja) * 2010-04-22 2014-02-05 新東工業株式会社 傾動式自動注湯方法および取鍋用傾動制御プログラムを記憶した記憶媒体
BR112013016857B1 (pt) 2010-12-29 2018-05-15 Av & R Vision & Robotiques Inc. Máquina de fundição sob pressão de câmara fria e de fundição sob pressão de câmara quente, e, métodos de moldar um artigo metálico e de aplicar pressão na primeira e segunda porções do molde
CN102389967A (zh) * 2011-10-25 2012-03-28 岳睿 基于摄像与高温计控制的浇注系统
DE102012109248A1 (de) * 2012-09-28 2014-04-03 Fluxana GmbH & Co. KG Herstellung von Analyseproben
AT514740B1 (de) 2013-05-27 2020-12-15 Nemak Sab De Cv Verfahren und Vorrichtung zum Gießen eines Gussteils
AT514648B1 (de) * 2013-05-27 2017-02-15 Fill Gmbh Verfahren zum Kippgießen
DE102015107951B4 (de) 2015-05-20 2018-09-13 INDUGA Industrieöfen u. Giesserei-Anlagen GmbH & Co. KG Verfahren und Vorrichtung einer Regelung des Gießprozesses beim Abgießen einer Gießform mittels einer schwerkraftentleerten drehbaren Gießpfanne
CN109530668B (zh) * 2018-10-24 2021-05-28 广德亚太汽车智能制动系统有限公司 一种浇包装置
CN109877304B (zh) * 2019-04-04 2021-08-20 江苏永瀚特种合金技术有限公司 一种真空浇注定位系统及方法
CN111112592B (zh) * 2020-01-14 2022-10-21 合肥工业大学 一种金属液充型设备

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JPS61229463A (ja) * 1985-04-03 1986-10-13 Mitsubishi Electric Corp 産業用ロボツト装置

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Publication number Publication date
DE59307156D1 (de) 1997-09-25
EP0592365A1 (fr) 1994-04-13
US5381855A (en) 1995-01-17
JPH06190541A (ja) 1994-07-12

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