DE1565378C

DE1565378C - Device for inductive heating of rod-shaped workpieces over part of their length

Info

Publication number: DE1565378C
Authority: DE
Inventors: Friedrich 5630 Remscheid Scheffler
Original assignee: AEG Elotherm GmbH
Current assignee: SMS Elotherm GmbH
Publication date: 1972-09-28

Description

nun wie folgt: Ein stangenförmiges Werkstück 2, welches vor der Induktorspule 1 bereitgestellt ist (Abb. 2), wird mit Hilfe eines Stößels 13 in Richtung des Pfeiles 12 — entsprechend der zu erwärmenden Teillänge des Werkstückes — mehr oder weniger tief in die Induktorspule 1 eingeführt. Dabei kann, wenn das Werkstück fast über seine gesamte Länge erhitzt werden soll, die Induktorspule 1 das Werkstück z. B. völlig überdecken; das dem Stößel 13 zugewandte Werkstückende liegt dabei im Streufeld der Induktorspule 1 und wird daher nur unwesentlich erwärmt.now as follows: A rod-shaped workpiece 2, which is provided in front of the inductor coil 1 (Fig. 2), with the help of a plunger 13 in the direction of arrow 12 - according to the partial length of the workpiece to be heated - more or less inserted deep into the inductor 1. This can happen when the workpiece is almost over its entire length is to be heated, the inductor 1, the workpiece z. B. cover completely; the ram 13 The workpiece end facing it lies in the stray field of the inductor coil 1 and is therefore only insignificant warmed up.

Nach Einschieben des Werkstückes 2 in die Induktorspule 1 wird die Stoßvorrichtung 11 in Richtung des Pfeiles 3 bewegt, wobei die Stifte 10 der Stoßvorrichtung 11 durch die Öffnungen 9 in der Spule hindurchgreifend das Werkstück 2 in Richtung quer zur Spulenachse um eine vorgegebene Strecke verschieben. Danach wird vor dem Stößel 13 ein weiteres Werkstück bereitgestellt, mittels des Stößels 13 in die Induktorspule 1 hineingeschoben und mit Hilfe der Stoßvorrichtung 11 in einem weiteren Förderschritt quer zur Spulenachse bewegt, wobei das zuletzt in die Induktorspule 1 eingebrachte Werkstück die übrigen sich in der Induktorspule befindliehen Werkstücke vor sich herschiebt.After the workpiece 2 has been pushed into the inductor coil 1, the pusher 11 is in Moved in the direction of arrow 3, the pins 10 of the pusher 11 through the openings 9 in the Coil reaching through the workpiece 2 in the direction transverse to the coil axis by a predetermined distance shift. Then a further workpiece is provided in front of the ram 13 by means of the ram 13 pushed into the inductor coil 1 and with the help of the pusher 11 in another Conveying step moved transversely to the coil axis, with the workpiece last introduced into the inductor coil 1 pushes the rest of the workpieces in the inductor coil in front of him.

Bis auf eine Anlauf phase und Auslaufphase ist die Induktorspule immer mit Werkstücken gefüllt, die mit Hilfe der Stoßvorrichtung 11 schrittweise in Richtung quer zur Spulenachse durch den WirkraumExcept for a start-up phase and a phase-out phase the inductor coil is always filled with workpieces, which are gradually moved into Direction transverse to the coil axis through the active space

ίο der Induktorspule 1 (d. h. in A b b. 1 von rechts nach links) transportiert werden und sich dabei fortschreitend erwärmen. In Abb. 1 ist mit 2" ein jerade in die Induktorspule 1 eingebrachtes, kaltes Werkstück und mit 2' ein vollständig erwärmtes Werkstück in seiner Lage knapp vor dem Ausbringen aus der Induktorspule 1 angedeutet.ίο the inductor coil 1 (i.e. in A b b. 1 from right to left) and heat up progressively in the process. In Fig. 1 is 2 "a Each cold workpiece that has just been introduced into the inductor coil 1 and, at 2 ', a completely heated one The workpiece is indicated in its position just before it is removed from the inductor coil 1.

Das Ausbringen der fertig erwärmten Werkstücke aus der Induktorspule 1 erfolgt — ähnlich wie das Einbringen — mit Hilfe eines Stößels 14, und zwar zweckmäßigerweise jeweils im gleichen Takt mit dem Einbringen eines Werkstückes.The finished, heated workpieces are discharged from the inductor coil 1 - similar to that Bring in - with the help of a plunger 14, expediently in the same cycle with the Insertion of a workpiece.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 of the inductor coil pushed out; in his original patent claims: initial position on the chain conveyor 'and finally carried away by this.

1. Device for inductive heating of this known device is only for work bar-shaped Workpieces suitable for a part S pieces whose focal points during the their length, with one of the workpieces encompassing the entire work process within the transport, Multi-turn inductor coil with elongated chains of the chain conveyor remain, d. H. that at Cross-section in which the workpieces, which are in the form of a longitudinal rod, are the part to be heated parallel to the inductor axis initially allowed to wear by a movement in io.

Direction of the inductor axis in the inductor coil The invention is based on the object

brought, then in a transverse transport lower a device to specify which the inductive right to the inductor axis in the active field of the heating in the continuous process of rod-shaped inductor coil and finally through a gene workpieces over an arbitrarily large part of movement in the direction of the inductor axis from the 15 of its total -Workpiece length allowed.
Inductor coil are deployed, thereby The device according to the invention is thereby

characterized that the; Workpieces (2) characterized in that the workpieces can be completely covered (1) and that for this transverse transport to this transverse transport one several pins (10) 20 a multiple pins having pushing device is provided, with pins of this pushing device through whereby pins (10) of this pushing device (11) on the narrow side of the inductor coil cross-section through openings located on the narrow side of the inductor coil between the inductor windings (9) reach through between the.
Reach through inductor windings. 25 According to an advantageous embodiment of the

2. Apparatus according to claim 1, characterized in the invention is in the area of the passage of the indicates that in the area of the pins to be formed the pusher is used for openings to openings (9) at least one turn in each case, at least one turn conductor of the inductor coil The conductor (4) of the inductor coil (1) is lifted out of the winding layer and out of the winding layer layer lifted out and over the respective 30 over the adjacent winding area, adjacent winding area runs. It should also be noted that a pusher, the several parallel working collision

· ■ has elements and a transport of

. rod-shaped workpieces within a furnace

35 space in the direction transverse to the longitudinal extension of the workpiece accomplished, although from the German

The invention relates to a device for induction see patent specification 942 550 is known per se, tiven heating of rod-shaped workpieces that this known impact device in contrast over part of its length, with a multi-turn inductor coil with the workpieces for the invention but not in connection with longitudinal 40 an induction coil with an elongated cross-section Lichem cross-section, in which the with. Their longitudinal .. is used, so here there are completely different conditions extending parallel to the inductor axis than in the case of the invention.
Workpieces initially by moving in a straight line. The device according to the invention will be explained in detail by moving the inductor axis into the inductor coil with reference to the illustrations that show an example, then in a transverse transport perpendicular to 45. ^:
Inductor axis moved in the active field of the inductor coil The figures show a partial view (A b b. 1)

and finally by moving in the direction with the inductor coil and part of the thrust front Inductor axis brought out of the inductor coil for transporting the workpieces through the direction will. Such a device is e.g. B. from the active space of the coil, as well as in schematic Dardeutschen Patent 824,658 known. In this 50 position (A b b. 2) a plan of the device, known device are rod-shaped work A multi-turn inductor coil 1 with an elongated

pieces that are at their ends to forging temperature cross-section (flat coil), which are to be heated in their axial direction, -on a chain conveyor in z. B. by adding additional coils 1 'and 1 "ver direction perpendicular to their longitudinal extent or can be lengthened (A b b. 2), has on a perpendicular to the inductor coil axis on the inductor 55 narrow side of the inductor coil cross-section several out along. After entry of a work openings 9 through which pins 10 of a push piece in front of the open elongated coil cross-section device 11 can reach through,
it becomes - while at the same time continuing its work.

movement with the chain conveyor - through an example below on a narrow side of the coil transverse movement in the direction of the coil axis with 60 cut - distributed in several places in the direction of its end to be heated in the coil axis - two winding conductors 4 each pushed and then With the chain conveyor in the coil - between the two flat areas 6 in the direction perpendicular to the coil axis through the active area of the winding surface - lifted out cranked and moved the space of the coil and the workpiece end thereby running over the area of the narrow side of the heated. When the end of the workpiece approaches the reel cross-section on both sides of the thus formed delimitation of the reel space, the workpiece is opened again via the adjacent Winnun - with simultaneous movement with the dung area.
Chain conveyor - in the direction of the coil axis from The device described above works