EP0973001A1 - Process for fastening or removing a load in a heat treatment installation with a bottomless furnace - Google Patents

Process for fastening or removing a load in a heat treatment installation with a bottomless furnace Download PDF

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Publication number
EP0973001A1
EP0973001A1 EP98113329A EP98113329A EP0973001A1 EP 0973001 A1 EP0973001 A1 EP 0973001A1 EP 98113329 A EP98113329 A EP 98113329A EP 98113329 A EP98113329 A EP 98113329A EP 0973001 A1 EP0973001 A1 EP 0973001A1
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EP
European Patent Office
Prior art keywords
load
station
loading
unloading
anchoring
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
EP98113329A
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German (de)
French (fr)
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EP0973001B1 (en
Inventor
Vincent Heinis
Gérard Laville
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Patherm SA
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Patherm SA
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Filing date
Publication date
Application filed by Patherm SA filed Critical Patherm SA
Priority to EP98113329A priority Critical patent/EP0973001B1/en
Priority to AT98113329T priority patent/ATE241120T1/en
Priority to DE69814845T priority patent/DE69814845T2/en
Publication of EP0973001A1 publication Critical patent/EP0973001A1/en
Application granted granted Critical
Publication of EP0973001B1 publication Critical patent/EP0973001B1/en
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0075—Charging or discharging vertically, e.g. through a bottom opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • F27D2003/124—Sleds; Transport supports

Definitions

  • the present invention relates to a method hooking and unhooking of a load in a heat treatment facility, and more particularly in such an installation comprising a oven with a downward-facing opening.
  • the present invention also relates to a thermal treatment installation allowing the setting in work of this process.
  • Conventional heat treatment systems have one or more ovens with an opening facing downwards, generally referred to as bell ovens and means for loading and unloading parts or loads to be treated in and from the oven (s).
  • Charges are loaded into the ovens generally as follows: the load is placed on a support plate in the form of a rigid grid honeycomb plane placed on an elevator which is movable between two positions respectively low and high.
  • the oven has plots or consoles in its lower part retainers that protrude radially from the inner wall of fur. These studs give opening the oven an indented outline.
  • Grid has a complementary outline and dimensions slightly smaller than those of the opening from the oven, so that the grid can pass smoothly with the load through the opening. So the grid with the load can be inserted from the bottom, in the oven opening by the elevator while the grid is oriented parallel to this opening.
  • the load release operation is carried out simply by repeating the above process so reverse.
  • the main aim of the invention is therefore to remedy the disadvantages of the aforementioned prior art providing a process and an installation which allow to carry out in a simple and economical way the hanging and unhooking a load in and from an oven, without addition of rotation system on an elevator and without organ movement in a temperature environment high.
  • the subject of the invention is a method according to that defined by claim 1.
  • the invention also relates to an installation for the implementation of the above process and in accordance with that described in claim 5.
  • This installation 1 comprises a bell furnace 2, i.e. an oven open down inside from which can be introduced, via an opening 4, and by vertical displacement, a load 6 formed by a part or a set of parts to be treated arranged on a support plate 8 (figure 4).
  • the oven 2 includes a sealed enclosure 10 associated with heating means 12, such as for example resistance ramps electric. Opening 4 can be closed by a plug 14 during processing operations.
  • studs are provided or three retaining brackets 16 (of which only two are visible in Figures 1a-1c and 2a-2c). These studs 16 protrude radially from the inner wall of the enclosure 10.
  • the studs 16 give the opening 4 a indented outline, circular in the example shown ( Figure 2b).
  • These studs 16 are intended for support the support plate 8 provided with the load 6, in particular between the processing operation (s) when the oven is open ( Figure 1c).
  • the support plate 8 is preferably raised above the studs 16 by feet of support 18 integral with the plug, in order to avoid creep studs 16 under the weight of the load 6.
  • these studs 16 can be arranged at another level of the inner wall of the enclosure 10.
  • the installation also includes means conventional load loading and unloading 6 in and from the oven 2, which can be made by a manipulator robot 20.
  • This robot 20 has an arm 22 which can be moved vertically along a column of guidance, not shown, by lifting means comprising for example a transmission system by chain and cogwheels, driven by a gear motor.
  • the plug 14 rests on the arm 22.
  • the oven 2 is mounted mobile and can be moved in translation in an X-Y direction from a first position so-called loading / unloading shown in the figure 1a, towards a second so-called anchoring position shown in Figure 1b.
  • the installation includes a guideway formed by two parallel rails 24 on which can move said oven 2 via of rollers 26.
  • the oven 2 can be moved in translation on this path through means M drive formed for example of a gear motor training in a classic way, in response to means of control, a pinion meshing with a rack (not represented).
  • the oven 2 rests on rails 24, but it is understood that according to a variant not shown, the oven 2 can be suspended from a support structure, such as a gantry, by through pebbles and one or more tracks guides placed above and / or on the sides of the oven 2.
  • a support structure such as a gantry
  • the installation shown here also includes ( Figures 2a to 2c) a cooling tank 28 in which the load 6 is intended to be quenched, this tank 28 comprising autonomous transfer means 30 for the unloading of the load 6 from the oven 2 to the tank 28.
  • These autonomous transfer means 30 include also an arm which can be moved vertically along a guide column, not shown, by means lift of the same type as those described in connection with the lifting means 20 of FIGS. 1a to 1c.
  • the support plate 8 has the form of a rigid flat honeycomb grid 32 having at its periphery notches 34 the number of four in the example shown.
  • Grid 32 shows thus a substantially complementary contour and dimensions slightly smaller than that of opening 4 so that grid 32 can pass during loading and unloading through the opening 4.
  • the arm 22 is raised by actuating the means elevators, to bring the load into enclosure 10 of the oven 2.
  • the support plate 8 will have been placed on feet 18 in an angular position such that the notches 34 are aligned with the retaining studs or consoles 16.
  • the load 6 and the support plate 8 are brought to a level higher than that of the studs 16 constituting the anchoring means. In this position, the charge 6 and the support plate 8 are in the position of loading unloading.
  • the oven 2 moves for the quenching operation above the cooling tank 28, this tank 25 being fixed.
  • the loading and unloading positions are therefore staggered.
  • the bin 28 can be mounted mobile and come position under the oven 2, so that the operations of loading and unloading are carried out in the same position. So we qualify here as position of loading / unloading a position in which can carry out the two operations mentioned above or one of these operations.
  • the plug 14 can be omitted so that the load rests directly on arm 22.
  • the processing station 2 is formed by an oven, but it will be understood that this station could be formed by any other type of station such as a drip station.
  • the installation can in addition to having several ovens in the upper position and / or drip stations and in the lower position multiple cooling stations or other elements of a conventional heat treatment installation.

Abstract

A method for coupling and uncoupling a charge in a heat treatment installation consists of coupling and uncoupling the charge by transmitting a relative translational movement between a treatment station (1) and some means for charging and discharging (20). The installation comprises at least one treatment station (1) incorporating an opening (4) oriented towards the bottom and destined to receive the charge (6). There is a member for charging and discharging the charge allowing, via a support mechanism (8), the charging of the charge (6) onto and the discharging of the charge from an anchoring mechanism (16) arranged in the treatment station (1).

Description

La présente invention concerne un procédé d'accrochage et de décrochage d'une charge dans une installation de traitement thermique, et plus particulièrement dans une telle installation comportant un four ayant une ouverture orientée vers le bas.The present invention relates to a method hooking and unhooking of a load in a heat treatment facility, and more particularly in such an installation comprising a oven with a downward-facing opening.

La présente invention concerne également une installation de traitement thermique permettant la mise en oeuvre de ce procédé.The present invention also relates to a thermal treatment installation allowing the setting in work of this process.

Les installations classiques de traitement thermique comportent un ou plusieurs fours possédant une ouverture orientée vers le bas, désignés généralement fours à cloche et des moyens de chargement et de déchargement des pièces ou charges à traiter dans et depuis le ou les fours.Conventional heat treatment systems have one or more ovens with an opening facing downwards, generally referred to as bell ovens and means for loading and unloading parts or loads to be treated in and from the oven (s).

Le chargement des charges dans les fours s'effectue généralement de la façon suivante: la charge est placée sur un plateau-support ayant la forme d'une grille rigide plane alvéolée posée sur un élévateur qui est mobile entre deux positions respectivement basse et haute. Le four présente dans sa partie inférieure des plots ou consoles de retenue qui font saillie radialement à partir de la paroi intérieure du fur. Ces plots confèrent à l'ouverture du four un contour indenté. La grille présente, quant à elle, un contour complémentaire et des dimensions légèrement inférieures a celles de l'ouverture du four, afin que la grille puisse passer sans encombre avec la charge au travers de l'ouverture. Ainsi, la grille munie de la charge peut être introduite, depuis le bas, dans l'ouverture du four par l'élévateur alors que la grille est orientée parallèlement à cette ouverture. Lorsque la grille se trouve amenée par l'élévateur à un niveau supérieur à celui des plots, on imprime un mouvement relatif de la grille par rapport aux plots de sorte que la grille puisse ensuite venir reposer sur les plots lorsqu'on abaisse l'élévateur.Charges are loaded into the ovens generally as follows: the load is placed on a support plate in the form of a rigid grid honeycomb plane placed on an elevator which is movable between two positions respectively low and high. The oven has plots or consoles in its lower part retainers that protrude radially from the inner wall of fur. These studs give opening the oven an indented outline. Grid has a complementary outline and dimensions slightly smaller than those of the opening from the oven, so that the grid can pass smoothly with the load through the opening. So the grid with the load can be inserted from the bottom, in the oven opening by the elevator while the grid is oriented parallel to this opening. When the grid is brought by the elevator to a level higher than that of the studs, we print a relative movement of the grid with respect to the studs so that the grid can then come to rest on the studs when lowering the elevator.

L'opération de décrochage de la charge s'effectue simplement en répétant le procédé ci-dessus de façon inverse.The load release operation is carried out simply by repeating the above process so reverse.

Dans certaines installations, c'est la grille ellemême qui est pivotée par rapport aux plots. Dans ce premier cas, il est nécessaire de prévoir des élévateurs équipés de moyens permettant la rotation de la grille ce qui augmente le coût de réalisation de l'élévateur.In some installations, it is the grid itself which is pivoted relative to the studs. In this first case, it is necessary to provide risers equipped with means allowing the rotation of the grid this which increases the cost of making the elevator.

Dans d'autres installations, c'est la paroi interne ou cloche du four qui est pivotée par rapport à la grille. Dans ce deuxième cas, il est nécessaire de prévoir un agencement complexe permettant la rotation de la cloche à des températures très élevées. Or, à ces températures, il se produit des phénomènes de dilatation thermique importants et des déformations des organes sous contraintes qui induisent des dysfonctionnements, notamment des grippages, ce qui rend ces installations peu fiables.In other installations, it is the internal wall or oven bell which is pivoted relative to the rack. In this second case, it is necessary to provide a complex arrangement allowing the rotation of the bell to very high temperatures. However, at these temperatures, it thermal expansion phenomena occur significant and deformities of the organs under constraints which induce dysfunctions, notably seizures, which makes these installations little reliable.

L'invention a donc pour but principal de remédier aux inconvénients de l'art antérieur susmentionné an fournissant un procédé et une installation qui permettent de réaliser de façon simple et économique l'accrochage et le décrochage d'une charge dans et depuis un four, sans adjonction de système de rotation sur un élévateur et sans mouvement d'organes dans un environnement à température élevée.The main aim of the invention is therefore to remedy the disadvantages of the aforementioned prior art providing a process and an installation which allow to carry out in a simple and economical way the hanging and unhooking a load in and from an oven, without addition of rotation system on an elevator and without organ movement in a temperature environment high.

A cet effet, l'invention a pour objet un procédé conforme à celui défini par la revendication 1. L'invention a également pour objet une installation pour la mise en oeuvre du procédé ci-dessus et conforme à celle décrite à la revendication 5.To this end, the subject of the invention is a method according to that defined by claim 1. The invention also relates to an installation for the implementation of the above process and in accordance with that described in claim 5.

D'autres caractéristiques et avantages de l'invention apparaítront plus clairement à la lecture de la description qui suit d'un mode de réalisation de l'invention donné uniquement à titre illustratif et non limitatif, cette description étant faite en liaison avec les dessins dans lesquels :

  • les figures 1a à 1c représentent des vues en coupe partielle de l'installation de traitement thermique illustrant les étapes d'accrochage d'une charge dans une station conformément au procédé selon l'invention,
  • les figures 2a et 2b représentent des vues en coupe faites selon les lignes II-II des figures 1a et 1b,
  • les figures 3a à 3c représentent des vues similaires aux figures 1a à 1c mais illustrant les étapes de décrochage d'une charge, conformément au procédé selon l'invention, et
  • la figure 4 montre une vue de dessus d'un plateau-support de charge reposant sur des moyens d'ancrage d'une station partiellement représentée.
Other characteristics and advantages of the invention will appear more clearly on reading the following description of an embodiment of the invention given solely by way of illustration and not limitation, this description being made in conjunction with the drawings in which :
  • FIGS. 1a to 1c represent views in partial section of the thermal treatment installation illustrating the steps for hooking a load in a station in accordance with the method according to the invention,
  • FIGS. 2a and 2b represent sectional views taken along lines II-II of FIGS. 1a and 1b,
  • FIGS. 3a to 3c represent views similar to FIGS. 1a to 1c but illustrating the steps of detaching a load, in accordance with the method according to the invention, and
  • Figure 4 shows a top view of a load support plate resting on anchoring means of a partially shown station.

En se référant aux figures 1a à 1c et 2a, 2b, on voit une installation de traitement thermique selon l'invention désignée par la référence générale 1.Referring to Figures 1a to 1c and 2a, 2b, we see a thermal treatment installation according to the invention designated by the general reference 1.

Cette installation 1 comprend un four à cloche 2, c'est-à-dire un four ouvert vers le bas à l'intérieur duquel peut être introduite, via une ouverture 4, et par un déplacement vertical, une charge 6 formée par une pièce ou un ensemble de pièces à traiter disposées sur un plateau-support 8 (figure 4). Le four 2 comprend une enceinte étanche 10 associée à des moyens de chauffage 12, tels que par exemple des rampes de résistances électriques. L'ouverture 4 peut être fermée par un bouchon 14 pendant les opérations de traitement.This installation 1 comprises a bell furnace 2, i.e. an oven open down inside from which can be introduced, via an opening 4, and by vertical displacement, a load 6 formed by a part or a set of parts to be treated arranged on a support plate 8 (figure 4). The oven 2 includes a sealed enclosure 10 associated with heating means 12, such as for example resistance ramps electric. Opening 4 can be closed by a plug 14 during processing operations.

Dans la partie inférieure de l'enceinte 10, au voisinage de l'ouverture 4, sont prévus des plots ou consoles de retenue 16 au nombre de trois (dont deux seuls sont visibles aux figures 1a-1c et 2a-2c). Ces plots 16 font saillie radialement depuis la paroi intérieure de l'enceinte 10. Les plots 16 confèrent à l'ouverture 4 un contour indenté, de forme circulaire dans l'exemple représenté (figure 2b). Ces plots 16 sont destinés à supporter le plateau-support 8 muni de la charge 6, notamment entre la ou les opérations de traitement lorsque le four est ouvert (figure 1c). En effet, lorsque le four 2 est fermé par le bouchon 14, le plateau-support 8 est de préférence soulevé au-dessus des plots 16 par des pieds de support 18 solidaires du bouchon, afin d'éviter le fluage des plots 16 sous le poids de la charge 6.In the lower part of enclosure 10, at in the vicinity of the opening 4, studs are provided or three retaining brackets 16 (of which only two are visible in Figures 1a-1c and 2a-2c). These studs 16 protrude radially from the inner wall of the enclosure 10. The studs 16 give the opening 4 a indented outline, circular in the example shown (Figure 2b). These studs 16 are intended for support the support plate 8 provided with the load 6, in particular between the processing operation (s) when the oven is open (Figure 1c). When the oven 2 is closed by the plug 14, the support plate 8 is preferably raised above the studs 16 by feet of support 18 integral with the plug, in order to avoid creep studs 16 under the weight of the load 6.

Selon un autre mode de réalisation non représenté, ces plots 16 peuvent être ménagés à un autre niveau de la paroi intérieure de l'enceinte 10.According to another embodiment not shown, these studs 16 can be arranged at another level of the inner wall of the enclosure 10.

L'installation comprend également des moyens classiques de chargement et de déchargement de la charge 6 dans et depuis le four 2, qui peuvent être réalisés par un robot manipulateur 20. Ce robot 20 comporte un bras 22 qui peut être déplacé en hauteur le long d'une colonne de guidage, non représentée, par des moyens élévateurs comprenant par exemple un système à transmission par chaíne et roues dentées, entraíné par un moto-réducteur.The installation also includes means conventional load loading and unloading 6 in and from the oven 2, which can be made by a manipulator robot 20. This robot 20 has an arm 22 which can be moved vertically along a column of guidance, not shown, by lifting means comprising for example a transmission system by chain and cogwheels, driven by a gear motor.

Dans l'exemple de réalisation illustré, le bouchon 14 repose sur le bras 22. En outre, dans cet exemple, le four 2 est monté mobile et peut être déplacé en translation selon une direction X-Y à partir d'une première position dite de chargement/déchargement représentée à la figure 1a, vers une deuxième position dite d'ancrage représentée à 1a figure 1b. A cet effet, l'installation comprend une voie de guidage formée de deux rails parallèles 24 sur lesquels peut se déplacer ledit four 2 par l'intermédiaire de galets 26. Le four 2 peut être déplacé en translation sur cette voie par l'intermédiaire de moyens d'entraínement M formés par exemple d'un moto-réducteur entraínant de façon classique, en réponse à des moyens de commande, un pignon engrenant avec une crémaillère (non représentés). Dans l'exemple ici décrit, le four 2 repose sur les rails 24, mais il est bien entendu que selon une variante non représentée, le four 2 peut être suspendu à une structure de support, tel qu'un portique, par l'intermédiaire de galets et d'une ou de plusieurs voies de guidage placées au-dessus et/ou sur les côtés du four 2. In the illustrated embodiment, the plug 14 rests on the arm 22. Furthermore, in this example, the oven 2 is mounted mobile and can be moved in translation in an X-Y direction from a first position so-called loading / unloading shown in the figure 1a, towards a second so-called anchoring position shown in Figure 1b. For this purpose, the installation includes a guideway formed by two parallel rails 24 on which can move said oven 2 via of rollers 26. The oven 2 can be moved in translation on this path through means M drive formed for example of a gear motor training in a classic way, in response to means of control, a pinion meshing with a rack (not represented). In the example described here, the oven 2 rests on rails 24, but it is understood that according to a variant not shown, the oven 2 can be suspended from a support structure, such as a gantry, by through pebbles and one or more tracks guides placed above and / or on the sides of the oven 2.

L'installation ici représentée comprend en outre (figures 2a à 2c) un bac de refroidissement 28 dans lequel la charge 6 est destinée à être trempée, ce bac 28 comprenant des moyens de transfert autonomes 30 pour le déchargement de la charge 6 depuis le four 2 vers le bac 28. Ces moyens de transfert autonomes 30 comprennent également un bras qui peut être déplacé en hauteur le long d'une colonne de guidage non représentée, par des moyens élévateur du même type que ceux décrits en liaison avec les moyens élévateurs 20 des figures 1a à 1c.The installation shown here also includes (Figures 2a to 2c) a cooling tank 28 in which the load 6 is intended to be quenched, this tank 28 comprising autonomous transfer means 30 for the unloading of the load 6 from the oven 2 to the tank 28. These autonomous transfer means 30 include also an arm which can be moved vertically along a guide column, not shown, by means lift of the same type as those described in connection with the lifting means 20 of FIGS. 1a to 1c.

Comme on le voit à la figure 4, le plateau-support 8 a la forme d'une grille rigide plane alvéolée 32 comportant à sa périphérie des échancrures 34 au nombre de quatre dans l'exemple représenté. La grille 32 présente ainsi un contour sensiblement complémentaire et des dimensions légèrement inférieures à celle de l'ouverture 4 de sorte que la grille 32 puisse passer lors du chargement et du déchargement au travers de l'ouverture 4.As seen in Figure 4, the support plate 8 has the form of a rigid flat honeycomb grid 32 having at its periphery notches 34 the number of four in the example shown. Grid 32 shows thus a substantially complementary contour and dimensions slightly smaller than that of opening 4 so that grid 32 can pass during loading and unloading through the opening 4.

On décrira ci-après un exemple de mise en oeuvre du procédé d'accrochage et de décrochage du procédé selon l'invention.An example of the implementation of the method of attachment and detachment of the method according to the invention.

Opération d'accrochage de la chargeLoad hooking operation

Au cours de cette première étape, on positionne tout d'abord le bras 22 du robot manipulateur 20 dans une position basse. On dispose le plateau-support 8 et la charge 6 sur les pieds de support 18 du bouchon 14.During this first step, we position everything first the arm 22 of the manipulator robot 20 in a low position. We have the support plate 8 and the load 6 on the support feet 18 of the plug 14.

Ensuite, on élève le bras 22 en actionnant les moyens élévateurs, pour amener la charge dans l'enceinte 10 du four 2. On précisera que, au cours de cette opération, le plateau-support 8 aura été disposé sur les pieds 18 dans une position angulaire telle que les échancrures 34 soient alignées avec les plots ou consoles de retenue 16.Then, the arm 22 is raised by actuating the means elevators, to bring the load into enclosure 10 of the oven 2. It should be noted that, during this operation, the support plate 8 will have been placed on feet 18 in an angular position such that the notches 34 are aligned with the retaining studs or consoles 16.

La charge 6 et le plateau-support 8 sont amenés à un niveau supérieur à celui des plots 16 constituant les moyens d'ancrage. Dans cette position, la charge 6 et le plateau-support 8 se trouvent dans la position de chargement/déchargement. The load 6 and the support plate 8 are brought to a level higher than that of the studs 16 constituting the anchoring means. In this position, the charge 6 and the support plate 8 are in the position of loading unloading.

Comme le montre les figures 1b et 2b, on déplace alors le four 2, typiquement d'une distance de 100 mm, à l'aide des moyens d'entraínement M depuis sa position de chargement/déchargement (figures 1a et 2a) jusqu a une position dite d'ancrage (figures 1b et 2b) dans laquelle les plots 16 viennent se superposer au plateau-support 8 en venant, dans cet exemple, se positionner partiellement sous ce plateau-support. Ensuite, les moyens élévateurs 20 peuvent s'abaisser (figure 1c) et les parties superposées du plateau-support 8 peuvent venir reposer sur les plots 16. Ces plots 16 servent de moyens d'ancrage de la charge 6 et supportent ainsi le plateau-support 8 et ladite charge 6 qui sont ancrés par leur propre poids dans le four 2.As shown in Figures 1b and 2b, we move then the oven 2, typically from a distance of 100 mm, at using the drive means M from its position loading / unloading (Figures 1a and 2a) to a so-called anchoring position (Figures 1b and 2b) in which the pads 16 are superimposed on the support plate 8 by coming, in this example, to partially position under this support plate. Then, the lifting means 20 can be lowered (figure 1c) and the overlapping parts of the support plate 8 can come to rest on the pads 16. These studs 16 serve as means for anchoring the load 6 and thus support the support plate 8 and said load 6 which are anchored by their own weight in the oven 2.

Opération de décrochage de la chargeLoad release operation

L'opération de décrochage de la charge 6 et du plateau-support 8 s'effectue simplement en répétant le procédé ci-dessus de manière inverse.The operation to unhook the load 6 and the support plate 8 is carried out simply by repeating the above above in reverse.

On notera toutefois que dans l'exemple décrit, à la place des moyens élévateurs 20, on utilisera les moyens élévateurs 30 disposés dans le bac de refroidissement 28 (figures 3a à 3c).Note, however, that in the example described, at the place lifting means 20, we will use the means risers 30 arranged in the cooling tank 28 (Figures 3a to 3c).

On élève donc le plateau-support 8 à un niveau supérieur à celui des plots 16 pour les libérer (figure 3a), on déplace en translation le four 2 par rapport au plateau-support 8 vers une position de chargement/déchargement similaire à celle décrite cidessus, et on abaisse la charge 6 ainsi que le plateau-support 8 à l'aide des moyens élévateurs 30 pour les amener hors du four 2.We therefore raise the support plate 8 to a level higher than that of the studs 16 to release them (figure 3a), the oven 2 is moved in translation relative to the support plate 8 to a position of loading / unloading similar to that described above, and lower the load 6 as well as the support plate 8 using the lifting means 30 for the take out of the oven 2.

Dans le mode de réalisation qui est ici décrit, le four 2 se déplace pour l'opération de trempe au-dessus du bac de refroidissement 28, ce bac 25 étant fixe. Les positions de chargement et de déchargement sont donc décalées. Dans un autre mode de réalisation non représenté, le bac 28 peut être monté mobile et venir se positionner sous le four 2, si bien que les opérations de chargement et de déchargement s'effectuent dans la même position. On qualifie donc ici de position de chargement/déchargement une position dans laquelle peuvent se réaliser les deux opérations susmentionnées ou l'une de ces opérations.In the embodiment which is described here, the oven 2 moves for the quenching operation above the cooling tank 28, this tank 25 being fixed. The loading and unloading positions are therefore staggered. In another embodiment not shown, the bin 28 can be mounted mobile and come position under the oven 2, so that the operations of loading and unloading are carried out in the same position. So we qualify here as position of loading / unloading a position in which can carry out the two operations mentioned above or one of these operations.

Il va de soit que d'autres moyens peuvent être envisagés pour assurer l'ancrage du plateau-support 8 dans l'enceinte 10. On pourrait par exemple prévoir de suspendre le plateau-support 8 dans ladite enceinte en positionnant la charge 6 sous le plateau-support 8, en la liant à ce plateau-support 8 par des moyens appropriés ou encore en la plaçant dans un réceptacle ménagés sous le plateau-support 8.It goes without saying that other means can be envisaged to anchor the support plate 8 in enclosure 10. One could for example provide suspend the support plate 8 in said enclosure by positioning the load 6 under the support plate 8, binding to this support plate 8 by appropriate means or again by placing it in a receptacle provided under the support plate 8.

En outre d'autres modifications peuvent être apportées au procédé et à l'installation selon la présente invention dont des formes d'exécution viennent d'être décrites sans pour autant sortir du cadre de cette invention.In addition, other modifications may be made to the process and installation according to this invention whose embodiments have just been described without departing from the scope of this invention.

Ainsi, par exemple, il est aussi possible de déplacer les moyens élévateurs 20 et 30 en translation par rapport au four 2 qui peut être fixe, et assurer l'ancrage décrit ci-dessus. De même il est possible de réaliser une installation dans laquelle on combine un mouvement du four 2 et des moyens élévateurs.So, for example, it's also possible to move the lifting means 20 and 30 in translation relative to in oven 2 which can be fixed, and ensure the anchoring described above. Likewise it is possible to carry out a installation in which an oven movement is combined 2 and lifting means.

En outre, le bouchon 14 peut être omis pour que la charge repose directement sur le bras 22.In addition, the plug 14 can be omitted so that the load rests directly on arm 22.

Dans l'exemple décrit, la station de traitement 2 est formée par un four, mais on comprendra que cette station pourrait être formée par tout autres types de station telles qu'une station d'égouttage. L'installation peut en outre comporter en position supérieure plusieurs fours et/ou stations d'égouttage et en position inférieure plusieurs stations de refroidissement ou d'autres éléments d'une installation classique de traitement thermique.In the example described, the processing station 2 is formed by an oven, but it will be understood that this station could be formed by any other type of station such as a drip station. The installation can in addition to having several ovens in the upper position and / or drip stations and in the lower position multiple cooling stations or other elements of a conventional heat treatment installation.

Claims (10)

Procédé d'accrochage et de décrochage d'une charge associée à des moyens de support, dans une installation de traitement thermique, cette installation comportant : au moins une station de traitement comportant une ouverture orientée vers le bas et destinée à recevoir ladite charge, des moyens de chargement et de déchargement de la charge permettant, via lesdits moyens de support, le chargement de la charge sur et le déchargement de la charge depuis des moyens d'ancrage agencés dans la station,
caractérisé en ce qu'il consiste à accrocher et à décrocher la charge en imprimant un mouvement de translation relatif entre ladite station et les moyens de chargement et de déchargement. Method for attaching and detaching a load associated with support means, in a heat treatment installation, this installation comprising: at least one treatment station comprising an opening oriented downwards and intended to receive said load, means for loading and unloading the load allowing, via said support means, the loading of the load onto and the unloading of the load from anchoring means arranged in the station,
characterized in that it consists in hooking and unhooking the load by imparting a relative translational movement between said station and the loading and unloading means. Procédé selon la revendication 1, caractérisé en ce que le mouvement de translation est effectué par ladite station.Method according to claim 1, characterized in what the translational movement is done by said station. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'il consiste, pour l'accrochage : à amener ladite charge par les moyens de chargement et de déchargement en regard de l'ouverture de ladite station, à élever la charge dans ladite station pour amener les moyens de support à un niveau supérieur à celui des moyens d'ancrage, à déplacer en translation la station par rapport aux moyens support depuis une position dite de chargement/déchargement vers une position dite d'ancrage, à abaisser la charge pour faire coopérer les moyens de support avec les moyens d'ancrage pour accrocher la charge dans la station. Method according to claim 1 or 2, characterized in that it consists, for attachment: to bring said load by the loading and unloading means opposite the opening of said station, to raise the load in said station to bring the support means to a level higher than that of the anchoring means, to move the station in translation relative to the support means from a so-called loading / unloading position to a so-called anchoring position, to lower the load to make the support means cooperate with the anchoring means for hanging the load in the station. Procédé selon la revendication 1 à 3, caractérisé en ce qu'il consiste, pour le décrochage : à élever les moyens de support à un niveau supérieur à celui des moyens d'ancrage pour les libérer desdits moyens d'ancrage, à déplacer en translation la station par rapport aux moyens support depuis ladite position d'ancrage vers la position de chargement/déchargement, et à abaisser la charge à l'aide des moyens de chargement et de déchargement pour l'amener hors de ladite station. Method according to claim 1 to 3, characterized in that it consists, for the release: raising the support means to a level higher than that of the anchoring means in order to free them from said anchoring means, moving the station in translation relative to the support means from said anchoring position to the loading / unloading position, and to lower the load using the loading and unloading means to bring it out of said station. Installation de traitement thermique permettant la mise en oeuvre du procédé selon l'une des revendications précédentes, comprenant: au moins une station de traitement comportant une ouverture orientée vers le bas et destinée à recevoir une charge, des moyens de chargement et de déchargement de la charge sur et depuis des moyens d'ancrage agencés dans la station,
caractérisée en ce qu'elle comporte des moyens d'entraínement pour déplacer en translation la station par rapport à la charge, et des moyens de commande agencés pour piloter les moyens d'entraínement afin d'assurer le déplacement en translation de la station pour réaliser des opérations d'accrochage et de décrochage de ladite charge sur et depuis lesdits moyens d'ancrage. Installation of heat treatment allowing the implementation of the method according to one of the preceding claims, comprising: at least one treatment station comprising an opening oriented downwards and intended to receive a load, means for loading and unloading the load onto and from anchoring means arranged in the station,
characterized in that it comprises drive means for moving the station in translation relative to the load, and control means arranged to control the drive means in order to ensure the translational movement of the station to achieve operations for attaching and detaching said load on and from said anchoring means. Installation selon la revendication 5, caractérisée en ce qu'elle comprend au moins une voie de guidage de ladite station ménagée pour assurer le déplacement en translation de ladite station.Installation according to claim 5, characterized in that it comprises at least one guidance of said station arranged to ensure the translational movement of said station. Installation selon la revendication 6, caractérisée en ce que ladite voie comporte deux rails parallèles sur lesquels repose ladite station par l'intermédiaire de galets.Installation according to claim 6, characterized in that said track has two rails parallels on which said station is based by through pebbles. Installation selon l'une quelconque des revendication 5 à 7, caractérisée en ce que ladite station est constituée par un four.Installation according to any of claim 5 to 7, characterized in that said station consists of an oven. Installation selon la revendication 8, caractérisée en ce que ledit four comprend une enceinte dans laquelle sont ménagés des plots ou consoles constituant lesdits moyens d'ancrage.Installation according to claim 8, characterized in that said oven comprises an enclosure in which are provided studs or consoles constituting said anchoring means. Installation selon la revendication 8, caractérisée en ce que lesdits plots font radialement saillies depuis une paroi inférieure de l'enceinte.Installation according to claim 8, characterized in that said pads are radially protrusions from a lower wall of the enclosure.
EP98113329A 1998-07-17 1998-07-17 Process for fastening or removing a load in a heat treatment installation with a bottomless furnace Expired - Lifetime EP0973001B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP98113329A EP0973001B1 (en) 1998-07-17 1998-07-17 Process for fastening or removing a load in a heat treatment installation with a bottomless furnace
AT98113329T ATE241120T1 (en) 1998-07-17 1998-07-17 METHOD FOR ATTACHING AND REMOVAL OF GOODS IN A HEAT TREATMENT APPARATUS HAVING A BOTTOMLESS FURNACE
DE69814845T DE69814845T2 (en) 1998-07-17 1998-07-17 Method for fixing and removing goods in a heat treatment device with a bottomless furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98113329A EP0973001B1 (en) 1998-07-17 1998-07-17 Process for fastening or removing a load in a heat treatment installation with a bottomless furnace

Publications (2)

Publication Number Publication Date
EP0973001A1 true EP0973001A1 (en) 2000-01-19
EP0973001B1 EP0973001B1 (en) 2003-05-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98113329A Expired - Lifetime EP0973001B1 (en) 1998-07-17 1998-07-17 Process for fastening or removing a load in a heat treatment installation with a bottomless furnace

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EP (1) EP0973001B1 (en)
AT (1) ATE241120T1 (en)
DE (1) DE69814845T2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB899793A (en) * 1960-03-04 1962-06-27 Ass Elect Ind Improvements in and relating to furnaces
DE1243223B (en) * 1965-12-23 1967-06-29 Koppers Wistra Ofenbau Gmbh Discharge device for heat treatment furnaces
EP0070347A1 (en) * 1981-07-17 1983-01-26 Michel Spérisen, Equipements industriels Heat treating apparatus
EP0671476A1 (en) * 1994-03-12 1995-09-13 Solo Fours Industriels Sa Heat treatment plant
DE4437683C1 (en) * 1994-10-21 1996-01-25 Sorayapour Dr Ing Soraya Heat treatment of wire in coil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB899793A (en) * 1960-03-04 1962-06-27 Ass Elect Ind Improvements in and relating to furnaces
DE1243223B (en) * 1965-12-23 1967-06-29 Koppers Wistra Ofenbau Gmbh Discharge device for heat treatment furnaces
EP0070347A1 (en) * 1981-07-17 1983-01-26 Michel Spérisen, Equipements industriels Heat treating apparatus
EP0671476A1 (en) * 1994-03-12 1995-09-13 Solo Fours Industriels Sa Heat treatment plant
DE4437683C1 (en) * 1994-10-21 1996-01-25 Sorayapour Dr Ing Soraya Heat treatment of wire in coil

Also Published As

Publication number Publication date
EP0973001B1 (en) 2003-05-21
DE69814845D1 (en) 2003-06-26
DE69814845T2 (en) 2004-05-06
ATE241120T1 (en) 2003-06-15

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