DE102010013471A1 - Closure device for opening and closing of outer cover of industrial furnace, has two-parts closure and inner door of internal treatment chamber which has connection that is formed between cover and inner door - Google Patents

Abstract

The closing device has two-parts closure (2) and an inner door (5) of an internal treatment chamber (4) which has a connection that is formed between a cover (3) and the inner door by a medium for decoupling a rotary motion of the cover from the inner door and for axial processing of the inner door. The connection between cover and inner door allows a relative motion in axial and radial directions. An axle block (5.1) is arranged at the inner door with a guiding unit.

Description

Technical area

The invention relates to a closure device for an industrial furnace, which has at least one treatment chamber arranged therein for a heat treatment, wherein the closure device essentially comprises a cover closing the industrial furnace outwardly, an inner door closing the treatment chamber and locking elements.

State of the art

Such closure devices, which are operated manually, mechanically or automatically, are known.

So z. B. a 2-part bayonet lock in the sense of locking / unlocking used for the axially rotating lid, whereby the industrial furnace is closed as a pressure vessel to the outside or opened. The 2-part bayonet closure is expediently formed by a respective part of the bayonet closure formed on the circumference of the lid and the outer edge of the pressure vessel.

In a known 3-part bayonet lock provides a rotatable coupling ring to the outside the closure or the opening of the industrial furnace with the lid not to be rotated in this case.

The inner chamber closing the treatment chamber conventionally has a separate operation - possibly with drive - on, was not connected to the lid.

Regularly, the inner door to the treatment chamber is arranged sealingly and on / abschlagbar.

It is common practice to actuate generic closure devices, on the one hand the lid as an outer closure element and on the other hand the inner door as an inner closure element, by means of elements acting like a hinge.

In automated industrial furnaces, such as. B. is customary for the targeted heat treatment of metallic workpieces, the process chamber closing the inner door also process-related to open or close together with the lid.

• • die Innentür am mit besagtem 3-teiligen Bajonettverschluss versehenen Deckel befestigt wurde, um ein zwangsweises Drehen der Innentür zu vermeiden, weil dadurch ein Verschleissen der Dichtungsfunktion der die Behandlungskammer abdichtenden Innentür nicht mehr eintrat oder
• • die Innentür am mit besagtem 2-teiligem Bajonettverschluss versehenen Deckel ebenfalls befestigt wurde, jedoch vor dem Drehen des Deckels die Innentür in axialer Richtung mittels z. B. eines Antriebs in axialer Richtung verfahren wurde oder
• • die Innentür eine separate Betätigung wie Antrieb erhielt, wobei sie nicht am Deckel befestigt, sondern nur an der Behandlungskammer an-/abschlagbar angeordnet wurde.

For this purpose, such solutions were previously carried out in which

• The inner door has been fastened to the cover provided with said 3-part bayonet closure in order to avoid compulsory turning of the inner door, as this no longer wears off the sealing function of the inner chamber sealing the treatment chamber, or
• • the inner door has also been fastened to the cover provided with said 2-part bayonet lock, but before turning the cover, the inner door can be moved in the axial direction by means of e.g. B. a drive was moved in the axial direction or
• • The inner door was given a separate operation such as drive, whereby it was not attached to the lid, but only on the treatment chamber was arranged / abschlagbar.

Presentation of the invention

The invention has the object to provide a simply functioning, retrofittable to existing industrial furnaces closure device without costly 3-piece closure such as bayonet and without separate drive for the inner door to create an opening or a closure of the inner door of the treatment chamber together with the lid of the industrial furnace guaranteed.

The object is achieved by a closure device for opening and closing an outer lid with two-piece closure such as 2-part bayonet closure of an industrial furnace and an inner door of an internal treatment chamber of the industrial furnace, which allows a relative movement in the axial and radial direction permitting connection between the lid and inner door Includes means for decoupling a rotational movement of the lid from the inner door and the axial movement of the inner door.

• – einen an der Innentür angeordneten Achskörper mit mindestens einem Führungsmittel,
• – einen mit dem Deckel verbundenen Aufnahmekörper mit mindestens einem Führungsmittel,
• – eine die Relativbewegung zwischen Achskörper und Aufnahmekörper in axialer und radialer Richtung zulassende Lagerung

aufweisen, wobei die Führungsmittel zur Entkoppelung der Drehbewegung des Deckels von der Innentür in radialer Richtung und zum Verfahren der Innentür in axialer Richtung einander korrespondierend geführt sind.The invention is characterized in that the means for decoupling the Rotary movement of the lid from the inner door and the axial movement of the inner door

• An axle body arranged on the inner door with at least one guide means,
• A receiving body connected to the cover with at least one guide means,
• - A relative movement between the axle body and receiving body in the axial and radial direction permitting storage

have, wherein the guide means for decoupling the rotational movement of the lid from the inner door in the radial direction and for moving the inner door in the axial direction are guided corresponding to each other.

• – einen am Deckel angeordneten Achskörper mit mindestens einem Führungsmittel,
• – einen mit der Innentür verbundenen Aufnahmekörper mit mindestens einem Führungsmittel,
• – eine die Relativbewegung zwischen Achskörper und Aufnahmekörper in axialer und radialer Richtung zulassende Lagerung

aufweisen, wobei die Führungsmittel zur Entkoppelung der Drehbewegung des Deckels von der Innentür in radialer Richtung und zum Verfahren der Innentür in axialer Richtung einander korrespondierend geführt sind.Alternatively, it is possible to form the invention in such a way, the means for decoupling the rotational movement of the lid from the inner door and the axial movement of the inner door

• An axle body arranged on the cover with at least one guide means,
• A receiving body connected to the inner door with at least one guide means,
• - A relative movement between the axle body and receiving body in the axial and radial direction permitting storage

have, wherein the guide means for decoupling the rotational movement of the lid from the inner door in the radial direction and for moving the inner door in the axial direction are guided corresponding to each other.

At least one pressure element for exerting a force acting in the direction of the axis on the inner door ensures its sealing function.

The guide means are formed as a guide slot and as guided in the guide slot guide member.

The pressure element is designed as a spring assembly and arranged on the receiving body or on the axle body, wherein other pressure elements are used.

The guide slot is formed as a recess in the axle body or receiving body.

Alternatively, the guide slot can be applied as a raised training on Achskörper or receiving body.

The guide element is formed on the axle body or receiving body.

The inventive closure device can be varied by an optional combination of the means for decoupling the rotational movement of the lid from the inner door and the axial movement of the inner door, wherein the axle can be mounted within the receiving body or the receiving body within the axle body.

Overall, the opening or closing function of the closure device in the sense of the task is advantageously solved by the inventive interaction between the axle and the guide means and the receiving body in a limited degree of freedom.

In particular, the invention is suitable for the automated operation of an industrial furnace plant.

Thus, the automatic as well as heat treatment process-dependent opening / closing of the cover and the inner door comprehensive closure device contributes to avoiding the disadvantages described above to increase the utility of industrial furnaces.

Description of the drawing and an embodiment

The invention will be described with reference to a drawing illustrating the embodiment of the invention as a closure device for example for a vacuum / overpressure operation of an industrial furnace 1 indicates, explained in more detail, with a lid 3 with 2-part bayonet catch 2 and an inner door 5 in functional linkage, the thus removable from the drawing closure device according to the invention in the partially sectioned side view of the industrial furnace 1 form.

The industrial furnace 1 has within its unmarked housing one with the inner door 5 lockable internal treatment chamber 4 on, the z. B. is provided for a heat treatment of metallic workpieces.

The axially rotatable lid 3 closes the industrial furnace 1 with the well-known 2-part bayonet catch 2 , on the one hand on the non-designated housing and on the other hand on the lid 3 is designed accordingly.

According to the invention, the inner door 5 like that with the lid 3 functionally connected to the required rotational movement of the lid 3 from the inner door 5 decoupled and not necessarily rotates.

This is by means of a storage 6.1 a in this example at the inner door 5 attached axle body 5.1 in one with the lid 3 firmly connected receiving body 6 stored.

A for sealing the inner door 5 opposite the treatment chamber 4 required contact pressure is due to the effect of spring packs 6.3 exercised. The spring packages 6.3 are on the receiving body 6 mounted and thus practice one in the axial direction of the axle body 5.1 acting force on the thus sealing inner door 5 out.

For guidance and non-rotating entrainment of the inner door 5 when turning the lid open 3 is on the receiving body 6 a guide element 6.2 attached. The guide element 6.2 engages in a relative movement between the lid 3 and inner door 5 permitting guidance 5.2 , in this case recess, in the axle body 5.1 a, whereby an interaction between the axle body 5.1 and the guide element 6.2 a degree of freedom of the inner door 5 when turning or opening the lid 3 limited to the desired positions.

Within the scope of the reproduced in the claims features equally effective embodiments are possible in the sense of the task.

LIST OF REFERENCE NUMBERS

1

industrial furnace

2

two-part closure, bayonet closure

3

cover

4

treatment chamber

5

interior door

5.1

axle body

5.2

Guide slot, recess

6

receiving body

6.1

storage

6.2

guide element

6.3

Pressure element, spring package

5.2

Guide slot, recess and

6.2

guide element

form the guide means

Claims (10)

Locking device for opening and closing an outer cover ( 3 ) with two-part closure ( 2 ) of an industrial furnace ( 1 ) and an inner door ( 5 ) an internal treatment chamber ( 4 ) of the industrial furnace ( 1 ), which permits a relative movement in the axial and radial direction between the cover ( 3 ) and inner door ( 5 ) by means for decoupling a rotational movement of the lid ( 3 ) from the inner door ( 5 ) and for the axial movement of the inner door ( 5 ). Closing device according to claim 1, characterized in that the connection between the lid ( 3 ) and inner door ( 5 ) and the means for decoupling the rotational movement of the lid ( 3 ) from the inner door ( 5 ) and for the axial movement of the inner door ( 5 ) a. one at the inner door ( 5 ) arranged axle body ( 5.1 ) with at least one guiding means ( 5.2 . 6.1 b. one with the lid ( 3 ) associated receiving body ( 6 ) with at least one guiding means ( 5.2 . 6.2 c. one the relative movement between axle body ( 5.1 ) and receiving body ( 6 ) in the axial and radial direction permitting storage ( 6.1 ), wherein the guide means ( 5.2 . 6.2 ) for decoupling the rotational movement of the lid ( 3 ) from the inner door ( 5 ) in the radial direction and for moving the inner door ( 5 ) are arranged corresponding to each other in the axial direction. Closing device according to claim 1, characterized in that the connection between the lid ( 3 ) and inner door ( 5 ) and the means for decoupling the rotational movement of the lid ( 3 ) from the inner door ( 5 ) and for the axial movement of the inner door ( 5 ) a. one on the lid ( 3 ) arranged axle body ( 5.1 ) with at least one guiding means ( 5.2 . 6.2 b. one with the inner door ( 3 ) associated receiving body ( 6 ) with at least one guiding means ( 5.2 . 6.2 c. one the relative movement between axle body ( 5.1 ) and receiving body ( 6 ) in the axial and radial direction permitting storage ( 6.1 ), wherein the guide means ( 5.2 . 6.2 ) for decoupling the rotational movement of the lid ( 3 ) from the inner door ( 5 ) in the radial direction and for moving the inner door ( 5 ) are arranged corresponding to each other in the axial direction. Closure device according to claim 2 or 3, characterized by at least one pressure element ( 6.3 ) to exercise in the direction of the axis ( 5.1 ) acting force on the inner door ( 5 ). Locking device according to claim 2 or 3, characterized in that the guide means ( 5.2 . 6.2 ) as a guideline ( 5.2 ) and as one in the leadership ( 5.2 ) guided guide element ( 6.2 ) are formed. Closure device according to claim 4, characterized in that the pressure element ( 6.3 ) designed as a spring assembly and the receiving body ( 6 ) or on the axle body ( 5.1 ) is arranged. Closing device according to claim 5, characterized in that the guide slot ( 5.2 ) as a recess in the axle body ( 5.1 ) or receiving body ( 6 ) is trained. Closing device according to claim 5, characterized in that the guide slot ( 5.2 ) as sublime training on Achskörper ( 5.1 ) or receiving body ( 6 ) is applied. Closure device according to claim 5, characterized in that the guide element ( 6.2 ) on the axle body ( 5.1 ) or receiving body ( 6 ) is trained. Locking device according to one of Claims 1 to 9, characterized by an optional combination of the means for decoupling the rotary movement of the cover ( 3 ) from the inner door ( 5 ) and for the axial movement of the inner door ( 5 ), wherein the axle body ( 5.1 ) within the receiving body ( 6 ) or the receiving body ( 6 ) within the axle body ( 5.1 ) is stored.

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