EP0280596B1 - Ram device for a laterally charged furnace - Google Patents

Ram device for a laterally charged furnace Download PDF

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Publication number
EP0280596B1
EP0280596B1 EP88400196A EP88400196A EP0280596B1 EP 0280596 B1 EP0280596 B1 EP 0280596B1 EP 88400196 A EP88400196 A EP 88400196A EP 88400196 A EP88400196 A EP 88400196A EP 0280596 B1 EP0280596 B1 EP 0280596B1
Authority
EP
European Patent Office
Prior art keywords
counterweight
stopper
parallelogram
displacing
buffer
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
EP88400196A
Other languages
German (de)
French (fr)
Other versions
EP0280596A1 (en
Inventor
Henry Thoor
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.)
Fives Stein SA
Original Assignee
Stein Heurtey 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 Stein Heurtey SA filed Critical Stein Heurtey SA
Priority to AT88400196T priority Critical patent/ATE60431T1/en
Publication of EP0280596A1 publication Critical patent/EP0280596A1/en
Application granted granted Critical
Publication of EP0280596B1 publication Critical patent/EP0280596B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • F27D3/04—Ram or pusher apparatus
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38—Arrangements of devices for charging
    • F27B2009/386—Lateral intake or outtake
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D2099/0085—Accessories
    • F27D2099/009—Bumpers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/1892—Lever and slide
    • Y10T74/18944—Link connections

Definitions

  • Ovens are known which can be loaded at will by one or the other of their lateral sides.
  • the oven has a stopper which is placed in the opening of the door when it is not used in order to block the products which are put in the oven by the other door and put in place on a train of rollers.
  • the present invention relates to a stop device for side loading oven with which the stop can easily be retracted when the side of the load is changed.
  • This device in which the stopper is suspended from a fixed structure by means of an articulated parallelogram, is characterized in that it comprises, to ensure the deformation of the parallelogram and, consequently, the displacement of the stopper, a mobile counterweight along an axis integral with one of the parts constituting the parallelogram and means for moving this counterweight.
  • the counterweight is mounted on one of the wings of an L-shaped part, the other wing of which constitutes one of the elements of the articulated parallelogram.
  • the stopper 5 is supported by a structure constituted by three columns 6a, 6b and 6c.
  • the stopper 5 is carried by an arm 7 articulated at 8 on the lower end of a connecting rod 9 whose upper end is articulated at 10 on the baluster 6c.
  • the end of the arm 7 is articulated at 11 on a part 12 in L which is articulated on the baluster 6a at a point 13 located at the same height as the axis 10.
  • the axes 8, 10, 11 and 13 are the vertices a parallelogram; the arm 7 is thereby kept horizontal.
  • the axis 13 is substantially at the top of the part 12 in L while the axis 11 is provided in the vicinity of the end of one of its wings.
  • a counterweight 14 is movably mounted on an axis 15 along the other wing of the part 12.
  • the stopper 5 is disposed in the opening 2 opposite the parts 4 and the axes 8 and 11 are respectively vertical to the axes 10 and 13; the stopper thus prevents the parts from leaving the oven. It will be noted that, in this position, the center of gravity of the counterweight 14 is located substantially vertical to the pivot 13 so that the position of the arm 7, of the connecting rod 9 and of the part 12 is a position of stable equilibrium and , that therefore, the arm 7 with the stopper 5 remains in the position shown.
  • the counterweight 14 is moved to bring it to the end of the second wing of the part 12.
  • the counterweight thus exerts on the part a torque which tends to make it rotate clockwise.
  • This movement has the effect of removing the stopper 5 from the opening 2 and lifting the arm 7 with the stopper ( Figure 2), which clears the passage for charging the pieces 4.
  • the arm 7 occupies a position for which the torque exerted by the movable assembly balances that generated by the counterweight 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manipulator (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Vending Machines For Individual Products (AREA)
  • Transmission Devices (AREA)
  • Specific Conveyance Elements (AREA)
  • Electric Stoves And Ranges (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

A buffer stop for an opening on a side-loading and side unloading furnace is mounted on a parallelogram linkage connected with a fixed support and is moved into position and out of position by the movement of a counterweight along a shaft on a member of the parallelogram linkage.

Description

On connaît des fours pouvant être chargés à volonté par l'un ou l'autre de leurs côtés latéraux. A chacune de ses portes latérales le four comporte un butoir qui est mis en place dans l'ouverture de la porte lorsqu'elle celle-ci n'est pas utilisée afin de bloquer les produits qui sont enfournés par l'autre porte et mis en place sur un train de rouleaux.Ovens are known which can be loaded at will by one or the other of their lateral sides. At each of its side doors the oven has a stopper which is placed in the opening of the door when it is not used in order to block the products which are put in the oven by the other door and put in place on a train of rollers.

La présente invention a pour object un dispositif à butoir pour four à chargement latéral avec lequel le butoir peut facilement être escamoté lorsque le côté du chargement est changé.The present invention relates to a stop device for side loading oven with which the stop can easily be retracted when the side of the load is changed.

Ce dispositif dans lequel le butoir est suspendu à une structure fixe par l'intermédiaire d'un parallélogramme articulé, est caractérisé en ce qu'il comporte, pour assurer la déformation du parallélogramme et, par suite, le déplacement du butoir, un contrepoids mobile le long d'un axe solidaire de l'une des pièces constituant le parallélogramme et des moyens pour déplacer ce contrepoids.This device in which the stopper is suspended from a fixed structure by means of an articulated parallelogram, is characterized in that it comprises, to ensure the deformation of the parallelogram and, consequently, the displacement of the stopper, a mobile counterweight along an axis integral with one of the parts constituting the parallelogram and means for moving this counterweight.

Dans un mode de réalisation particulier de l'invention, le contrepoids est monté sur l'une des ailes d'une pièce en L dont l'autre aile constitue l'un des éléments du parallélogramme articulé.In a particular embodiment of the invention, the counterweight is mounted on one of the wings of an L-shaped part, the other wing of which constitutes one of the elements of the articulated parallelogram.

On a décrit ci-après, à titre d'exemple non limitatif, un mode de réalisation du dispositif selon l'invention, avec référence au dessin annexé dans lequel:

  • La Figure 1 est une vue latérale du dispositif, le butoir étant en position active;
  • La Figure 2 en est une vue semblable à la Figure 1, le butoir étant en position escamotée.
An embodiment of the device according to the invention has been described below, by way of non-limiting example, with reference to the appended drawing in which:
  • Figure 1 is a side view of the device, the stopper being in the active position;
  • Figure 2 is a view similar to Figure 1, the stopper being in the retracted position.

Au dessin, on voit en 1 la paroi latérale d'un four qui comporte une ouverture 2 placée devant une ligne de rouleaux 3. L'ouverture 2 peut servir à volonté à l'enfournement de produits 4 qui sont mis en place sur les rouleaux 3, soit au défourne- ment de produits qui sont enfournés par une ouverture prévue dans la paroi latérale opposée; un butoir éclipsable 5 est prévu pour empêcher dans le second cas les produits 4 enfournés de sortir du four.In the drawing, we see at 1 the side wall of an oven which has an opening 2 placed in front of a line of rollers 3. The opening 2 can be used at will to load products 4 which are placed on the rollers 3, or to the supply of products which are placed in the oven through an opening provided in the opposite side wall; an eclipsable stopper 5 is provided to prevent, in the second case, the products in the oven from leaving the oven.

Le butoir 5 est supporté par une structure constituée par trois colonnettes 6a, 6b et 6c. Le butoir 5 est porté par un bras 7 articulé en 8 sur l'extrémité inférieure d'une bielle 9 dont l'extrémité supérieure est articulée en 10 sur la colonnette 6c. L'extrémité du bras 7 est articulée en 11 sur une pièce 12 en L qui est articulée sur la colonnette 6a en un point 13 situé à la même hauteur que l'axe 10. Les axes 8, 10, 11 et 13 sont les sommets d'un parallélogramme; le bras 7 est de ce fait maintenu horizontal.The stopper 5 is supported by a structure constituted by three columns 6a, 6b and 6c. The stopper 5 is carried by an arm 7 articulated at 8 on the lower end of a connecting rod 9 whose upper end is articulated at 10 on the baluster 6c. The end of the arm 7 is articulated at 11 on a part 12 in L which is articulated on the baluster 6a at a point 13 located at the same height as the axis 10. The axes 8, 10, 11 and 13 are the vertices a parallelogram; the arm 7 is thereby kept horizontal.

L'axe 13 est sensiblement au sommet de la pièce 12 en L alors que l'axe 11 est prévu au voisinage de l'extrémité de l'une de ses ailes. Un contrepoids 14 est monté mobile sur un axe 15 le long de l'autre aile de la pièce 12. Un vérin ou bien une vis sans fin entraîné par un moteur électrique ou hydraulique, qui n'est pas représenté au dessin, permet de déplacer le contrepoids 14 le long de l'axe 15.The axis 13 is substantially at the top of the part 12 in L while the axis 11 is provided in the vicinity of the end of one of its wings. A counterweight 14 is movably mounted on an axis 15 along the other wing of the part 12. A jack or else an endless screw driven by an electric or hydraulic motor, which is not shown in the drawing, makes it possible to move the counterweight 14 along the axis 15.

A la Figure 1 le butoir 5 est disposé dans l'ouverture 2 en regard des pièces 4 et les axes 8 et 11 se trouvent respectivement à la verticale des axes 10 et 13; le butoir empêche ainsi les pièces de sortir du four. On remarquera que, dans cette position, le centre de gravité du contrepoids 14 se trouve sensiblement à la verticale du pivot 13 de sorte que la position du bras 7, de la bielle 9 et de la pièce 12 est une position d'équilibre stable et, que de ce fait, le bras 7 avec le butoir 5 reste dans la position représentée.In Figure 1 the stopper 5 is disposed in the opening 2 opposite the parts 4 and the axes 8 and 11 are respectively vertical to the axes 10 and 13; the stopper thus prevents the parts from leaving the oven. It will be noted that, in this position, the center of gravity of the counterweight 14 is located substantially vertical to the pivot 13 so that the position of the arm 7, of the connecting rod 9 and of the part 12 is a position of stable equilibrium and , that therefore, the arm 7 with the stopper 5 remains in the position shown.

Si l'ouverture 2 doit servir d'ouverture d'enfournement, on déplace le contrepoids 14 pour l'amener à l'extrémité de la second aile de la pièce 12. Le contrepoids exerce ainsi sur la pièce un couple qui tend à la faire pivoter dans le sens des aiguilles d'une montre. Ce mouvement a pour effet de sortir le butoir 5 de l'ouverture 2 et de lever le bras 7 avec le butoir (Figure 2), ce qui dégage le passage pour l'enfournement des pièces 4. Lorsque le contrepoids 14 est à fin de course, le bras 7 occupe une position pour laquelle le couple exercé par l'ensemble mobile équilibre celui engendré par le contrepoids 14.If the opening 2 is to serve as a charging opening, the counterweight 14 is moved to bring it to the end of the second wing of the part 12. The counterweight thus exerts on the part a torque which tends to make it rotate clockwise. This movement has the effect of removing the stopper 5 from the opening 2 and lifting the arm 7 with the stopper (Figure 2), which clears the passage for charging the pieces 4. When the counterweight 14 is at the end of stroke, the arm 7 occupies a position for which the torque exerted by the movable assembly balances that generated by the counterweight 14.

Lorsque le contrepoids 14 est ramené dans sa position initiale, le couple exercé par l'ensemble mobile tend à ramener celui-ci dans sa position de la Figure 1, le butoir 5 étant de nouveau dans sa position active.When the counterweight 14 is returned to its initial position, the torque exerted by the movable assembly tends to return the latter to its position in FIG. 1, the stopper 5 being again in its active position.

Claims (4)

1. Buffer device for a laterally charged furnace, in which the buffer (5) is suspended on a fixed structure (6a, 6b and 6c) via an articulated parallelogram (7, 9 and 12), characterized in that, in order to ensure the deformation of the parallelogramm and consequently the displacement of the buffer (5), it hau a counterweight (14) movable along a spindle (15) integral with one of the parts constituting the parallelogram and means for displacing said counterweight (14).
2. Device according to claim 1, characterized in that the counterweight (14) is mounted on one of the wings of an L-shaped member (12), whereof the other wing constitutes one of the elements of the articulated parallelogram.
3. Device according to claims 1 or 2, characterized in that the means for displacing the counterweight (14) are constitued by a jack.
4. Device according to claims 1 or 2, characterized in that the means for displacing the counterweight (14) are constituted by an endless screw driven by an electric or hydraulic motor.
EP88400196A 1987-02-10 1988-01-28 Ram device for a laterally charged furnace Expired - Lifetime EP0280596B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400196T ATE60431T1 (en) 1987-02-10 1988-01-28 RIMMING DEVICE FOR A HORIZONTAL LOADING FURNACE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8701963 1987-02-10
FR8701963A FR2610711B3 (en) 1987-02-10 1987-02-10 STOP DEVICE FOR SIDE LOADING OVEN

Publications (2)

Publication Number Publication Date
EP0280596A1 EP0280596A1 (en) 1988-08-31
EP0280596B1 true EP0280596B1 (en) 1991-01-23

Family

ID=9347972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400196A Expired - Lifetime EP0280596B1 (en) 1987-02-10 1988-01-28 Ram device for a laterally charged furnace

Country Status (6)

Country Link
US (1) US4832154A (en)
EP (1) EP0280596B1 (en)
AT (1) ATE60431T1 (en)
CA (1) CA1320045C (en)
DE (1) DE3861596D1 (en)
FR (1) FR2610711B3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370530A (en) * 1993-03-24 1994-12-06 Italimpianti Of America, Inc. Rolls for high temperature roller hearth furnaces
US5362230A (en) * 1993-03-24 1994-11-08 Italimpianti Of America, Inc. Rolls for high temperature roller hearth furnaces
US5586855A (en) * 1993-11-23 1996-12-24 Eshleman; Roger D. Apparatus and method for infeeding batched materials

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US63444A (en) * 1867-04-02 Chakles h
US1562582A (en) * 1923-04-02 1925-11-24 Stebler Parker Co Automatic loading device for elevators
GB264114A (en) * 1925-10-01 1927-01-03 Wiggin & Co Ltd Henry Improvements relating to annealing and other furnaces, muffles and the like
DE665827C (en) * 1935-10-13 1938-10-04 Schuechtermann & Kremer Baum A Block printer
GB1030349A (en) * 1962-12-17 1966-05-18 Rud A Hartmann Gross App Und S Apparatus for continuously sterilising various products in large institutions, particularly hospitals
FR1589158A (en) * 1968-09-13 1970-03-23
DE2204936B2 (en) * 1972-02-03 1977-11-03 Fa. Wilhelm Zur Nieden, 4300 Essen Billet conveyor stop assembly - comprises pivoting vertical plate coupled to damper by pivoting link connected to piston rod
FR2222909A5 (en) * 1973-12-21 1974-10-18 Nippon Steel Corp Vertical heating furnace charging appts. - guides and centres material in the furnace
GB1522202A (en) * 1975-07-31 1978-08-23 Vacuumatic Ltd Conveyor apparatus

Also Published As

Publication number Publication date
EP0280596A1 (en) 1988-08-31
DE3861596D1 (en) 1991-02-28
CA1320045C (en) 1993-07-13
FR2610711A1 (en) 1988-08-12
US4832154A (en) 1989-05-23
ATE60431T1 (en) 1991-02-15
FR2610711B3 (en) 1991-01-11

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