DE10337304B4 - heating system - Google Patents

Abstract

heating system (1) for heating a heating material (2) through which the warming material (2) by means of a push and / or pull element (3) through conveyed and thereby is heated, characterized in that the heating system (1) for emptying the food to be heated (2) one of the push and / or pull element (3) formed, the Wärmungsgut (2) in the conveying direction (R) through the heating system Has (1) sliding Leerfahreinrichtung, wherein the push and / or pull element (3) from at least two segments forming the empty drive device (3 ', 3' ', 3' '') which is releasably so connectable to each other that both shear and tensile forces of a segment (3 ', 3' ', 3' '') are transferable to the other.

Description

The The invention relates to a heating plant for heating a heating material, in particular a rod-shaped or block-shaped heating material through which the material to be heated durchförderbar by means of a push and / or pull element and it is heatable.

For the heat treatment rod-shaped or block-shaped Erwärmungsguts are heating plants, for example, induction heating systems or run-through furnaces, used, the material under specification of defined parameters to a desired temperature to bring. The performance of such a heating system depends on the Occupation density, the geometric dimensions of the material to be heated and the consequent throughput speed with which the rod-shaped or block-shaped to be heated through the heating system is driven.

The DE 197 44 440 A1 discloses a generic heating system in which a tubular furnace is provided for firing ceramic products having a plurality of pallets for transporting fuel. The pallets in each case in the longitudinal direction of the furnace and in the transverse direction of the furnace can be coupled to one another and form a slat strip, wherein the pallets can be attached to the furnace entrance and be suspended again at the exit of the furnace.

From the DE 44 38 261 C1 a continuous furnace is known for heating glass sheets to their bending or tempering temperature. In this case, the glass sheets in a horizontal position through the furnace promoting transport system is provided. This includes within the oven, a series of support plates, each having a rigid frame which is tympanically covered with a heat-resistant membrane as a support surface for a glass sheet.

Other heating systems are in the WO 93/23714 A1 , in the DE-PS 929 775 , in the DE 33 01 434 C2 and in the DE-PS 886 014 described.

It however, may come to order batches where the warming material not to heat treat with the optimum mass per time. Accordingly then becomes the heating system not according to her operated optimally designed performance.

Around the heating system to be able to empty under load, are known Leerfahreinrichtungen with a cooled lance work. equally such Leerfahreinrichtungen are occasionally with push chains operated. The Leerfahreinrichtungen make it possible, the heating system empty under optimal operating conditions, d. H. it will allows the warming material delivered to the last Part by pushing the goods by means of the empty drive optimally heat treat.

Empty transportation devices according to the state of Technology has certain disadvantages. At first, these are often very expensive executed so that a corresponding system has a lot of space. Of Another is occasionally the process stability in known systems not always assured. Thrust chains also have the disadvantage that they can only be used up to a certain length.

Of the Invention is therefore the object of a heating system of the type mentioned above in such a way that an optimal emptying the plant in a simple manner and economically possible, with a device should be created, which is characterized by small footprint and high Process reliability distinguishes.

These Task is inventively characterized solved, that the heating system for emptying the food to be heated one of the push and / or pull element formed, the Heater in conveying direction pushing by the heating system Having Leerfahreinrichtung, wherein the push and / or pull element from at least two segments forming the empty drive that is solvable be connected to each other so that both shear and tensile forces of transferable from one segment to the other are. Advantageous developments emerge from the subclaims.

there the segments are preferably rod-shaped. Every segment can at its ends means for positive interaction with a have adjacent segment. This is advantageously thought of that these means are formed by a hook which coincides with a preferably complementary trained, hook of the adjacent segment cooperates.

The heating system can be equipped with a transport device, with the individual Segments brought from a segment tray in the heating system and / or can be removed from this. The transport device can at least one entrainment to transport the segment.

The Transport device particularly preferably has a feed device for the Segment in the heating plant on.

A particularly high process reliability is achieved if, according to a Further development of the invention is provided that the transport device for automatic feeding and / or removing segments into or out of the heating system is trained.

The Segments can be arranged on a segment tray so that they are in the conveying direction of the warming good are aligned. This can be achieve that the means of transport of the transport device the Segments in a direction transverse to the conveying direction of the material to be heated emotional. Alternatively, this can also be rotational, d. H. it can be over one Circular path inserted and removed.

The proposed heating plant, the preferred as induction heating device or designed as a continuous furnace, comes mainly for bars and blocks used, which may be round or square. With the inventively designed segmented push and / or pull element, it is possible to heating system empty under optimal operating conditions. Thus, at maintaining optimal process parameters the heating plant up to the last heat treatment Part to be operated. The warming of the warming material (Poles or blocks) This is done in an optimized way, so that a downstream Process, such as a forging process, process optimized connect can. The process of idling is with the proposed device easily automatable and repeatable.

In the drawing is an embodiment of Invention shown. Show it:

1 schematically the side view of a heating system;

2 a transport device for handling segments of the push and / or pull element; and

3 the contact point of two adjacent segments of the push and / or pull element in the side view.

In 1 is a schematic side view of a heating system 1 shown. It is designed in the present example as a continuous furnace, wherein the Erwärmungsgut 2 in the conveying direction R is transported through the furnace chamber. H is the height direction and S is the lateral direction for movements of a gripper 10 (see. 2 ) transverse to the conveying direction R denotes. In 1 you can see that the last three parts 2 a batch of warming goods are about to go to the heating plant 1 in the direction of R to the right. So sketched is the state in which the warming system 1 is drained.

So that the warming material 2 from the heating plant 1 can be transported, is a push and / or pull element 3 intended. This is able, with a separate or existing drive (not shown) the warming material 2 completely through the heating system 1 transport, ie to push in the present case. For this pushes the push and / or pull element 3 from the left to the remainder of the batch of warming material 2 and thus presses it in the conveying direction R through the heating system 1 ,

The push and / or pull element 3 consists of at least two segments 3 ' . 3 '' . 3 ''' , which are releasably connectable to each other, so that both shear and tensile forces in the conveying direction R of a segment 3 ' . 3 '' . 3 ''' are transferable to the other. For detachable connection is each segment 3 ' . 3 '' . 3 ''' at both ends 4 . 5 with funds 6 . 7 designed for the positive cooperation of adjacent ends of two segments. The detailed design of the push and / or pull element 3 results from the following figures.

In 2 is a transport device 8th sketched, with which it is possible the segments 3 ' . 3 '' . 3 ''' the push and / or pull element 3 to handle. In this embodiment, the conveying direction R of the Erwärmungsguts runs 2 perpendicular to the drawing plane. The push and / or pull element 3 becomes - as explained above - from a number of individual segments 3 ' . 3 '' . 3 ''' composed, with the segments 3 ' . 3 '' . 3 ''' initially on a segment tray 9 to store. Here are the individual rod-shaped segments 3 ' . 3 '' . 3 ''' aligned so that its longitudinal axis comes to lie in the conveying direction R.

The transport device shown 8th has a driving device in the form of a gripper 10 with which the individual segments 3 ' . 3 '' . 3 ''' from the segment tray 9 gripped and to a feeder 11 can be transported. The transport device 8th moves the gripper 10 always transversely to the conveying direction R, ie in the vertical direction H and in the lateral direction S.

As 2 can be further removed, in the exemplary embodiment, the individual segments 3 ' . 3 '' . 3 ''' designed so that they have a cross-section transverse to their longitudinal axis in section. The feeder 11 has meanwhile a V-shaped edition 12 to which the individual segments 3 ' . 3 '' . 3 ''' be placed and aligned.

The representations can be seen that the funds 6 . 7 at both ends 4 . 5 of each segment 3 ' . 3 '' . 3 ''' or ff are designed for the positive cooperation of two adjacent ends of two segments as cooperating hooks (s. 3 ). Two adjacent ends of two segments 3 ' . 3 '' . 3 ''' grip each other hook-shaped into each other, so that ensures that the multi-segment 3 . 3 '' . 3 ''' existing push and / or pull element 3 Both push and pull forces can be transferred from one segment to another.

The transport device 8th allows it, the individual segments 3 ' . 3 '' . 3 ''' at the right time on the feeder 11 hang up, what with not shown position sensors for the segments 3 ' . 3 '' . 3 ''' Control technology is easy to implement. In an analogous way, this can consist of several segments 3 ' . 3 '' . 3 ''' existing push and / or pull element 3 after use by the transport device 8th back into the individual segments 3 ' . 3 '' . 3 ''' be separated, and the individual segments 3 ' . 3 '' . 3 ''' can on the segment tray 9 be discontinued again.

The proposed device thus provides for the assembly of the push and / or pull element 3 to empty the heating system 1 on positively connectable and re-separable empty drive segments 3 ' . 3 '' . 3 ''' both automatically and by manual handling of the heating system 1 fed and can be introduced into this. After use, they can be removed equally automatically or by another handling again. By means of a drive not shown (either separately for the segments 3 ' . 3 '' . 3 ''' or already integrated in the heating system), the individual Leerfahrsegmente 3 ' . 3 '' . 3 ''' completely through the heating system 1 promoted, ie pushed. This makes it possible to heat the goods 2 under optimal process parameters through the heating system 1 to promote.

With regard to the design of the transport device 8th It is also possible to transport the segments 3 ' . 3 '' . 3 ''' via a "rotating insert" to accomplish, wherein the segment tray is structurally integrated into the device.

With regard to the process when using the heating device according to the invention, the following should be noted:
The feeder 11 transports a segment 3 ' . 3 '' . 3 ''' catching up to the warming material 2 in and through the heating system 1 , Parallel to this, the insertion process of a segment is repeated 3 ' . 3 '' . 3 ''' from the segment tray 9 on the feeder 11 , so that it is possible the following segment 3 ' . 3 '' . 3 ''' by minimally one direction of movement with the preceding segment 3 ' . 3 '' . 3 ''' positively connect. This segment feeding process occurs until there is no food to be heated 2 more in the heating system 1 located. Following this, the push and / or pull element 3 be transported back, the transport device 8th then by a corresponding movement (pivoting sideways) the positive connection of two segments 3 ' . 3 '' . 3 ''' separates and places the individual segments in the segment tray again.

Claims (10)

Heating plant ( 1 ) for heating a heating material ( 2 ) through which the material to be heated ( 2 ) by means of a push and / or pull element ( 3 ) and thereby heatable, characterized in that the heating system ( 1 ) for emptying the heating material ( 2 ) one of the push and / or pull element ( 3 ), the warming material ( 2 ) in the conveying direction (R) through the heating system ( 1 ) sliding pushing device, wherein the push and / or pull element ( 3 ) from at least two segments forming the empty drive ( 3 ' . 3 '' . 3 ''' ) which are detachably connectable to each other so that both pushing and pulling forces from a segment ( 3 ' . 3 '' . 3 ''' ) are transferable to the other. Heating plant according to claim 1, characterized in that the segments ( 3 ' . 3 '' . 3 ''' ) are rod-shaped. Heating plant according to claim 1 or 2, characterized in that each segment ( 3 ' . 3 '' . 3 ''' ) at its ends ( 4 . 5 ) Medium ( 6 . 7 ) for form-fitting interaction with an adjacent segment ( 3 ' . 3 '' . 3 ''' ) having. Heating plant according to claim 3, characterized in that the means ( 6 . 7 ) for interlocking interaction by a hook ( 6 ) with a hook ( 7 ) of the adjacent segment ( 3 ' . 3 '' . 3 ''' ) cooperates. Heating plant according to one of claims 1 to 4, characterized by a transport device ( 8th ), with the individual segments ( 3 ' . 3 '' . 3 ''' ) from a segment tray ( 9 ) into the heating plant ( 1 ) can be brought and / or removed from this. Heating plant according to claim 5, characterized in that the transport device ( 8th ) at least one driving means ( 10 ) for transporting the segment ( 3 ' . 3 '' . 3 ''' ) having. Heating plant according to claim 5 or 6, characterized in that the transport device tion ( 8th ) a feeder ( 11 ) for the segment ( 3 ' . 3 '' . 3 ''' ) in and through the heating plant ( 1 ) having. Heating plant according to claim 5, 6 or 7, characterized in that the transport device ( 8th ) for automatically feeding and / or removing segments ( 3 ' . 3 '' . 3 ''' ) into or out of the heating plant ( 1 ) is trained. Heating plant according to one of claims 5 to 8, characterized in that the segments ( 3 ' . 3 '' . 3 ''' ) on a segment tray ( 11 ) are arranged so that they are aligned in the conveying direction (R) of the Erwärmungsguts. Heating installation according to one of claims 6 to 9, characterized in that the entrainment means ( 10 ) of the transport device ( 8th ) is a gripper that holds the segments ( 3 ' . 3 '' . 3 ''' ) in a height direction (H) and in a lateral direction (S) transversely to the conveying direction (R) of the material to be heated moves.