EP1833625B1 - Device for the displacement of metallic materials - Google Patents

Abstract

The invention relates to a device (1) for pushing metallic goods (2) off and onto a conveyor (3) in a direction (S) transverse to a conveying direction (F), wherein the device (1) has a displacement arm (5) displaceable relative to a stationary stand (4) and in an end region (6) of which, at least one gripping element (7, 8) is arranged for gripping the metallic goods (2). In order to be able to effect pushing of goods off of a conveyor and thereon in a simple and space-saving manner, the invention is characterized in that the displacement arm has at least two arm sections displaceable within each other in a telescopic manner.

Description

The invention relates to a device for moving metallic material from or onto a conveying device in a direction perpendicular to the conveying direction, wherein the device has a relatively movable to a stationary stand movement arm, in one end region of which at least one gripping element is arranged to grip the metallic Guts wherein the movement arm has at least two arm parts and wherein at least two of the arm parts are telescopically in the manner of a telescope.

In case of malfunctions in a rolling mill, especially in a high-performance rolling mill, the case may occur that hot, for the rolling process heated metallic material (especially slabs or Vorbänder), which is to be rolled on the roller table (ie on the conveyor) must be stopped until the fault is removed. If the goods have already cooled down too much, they can no longer be used and rolled. It is rather to dispose of as scrap. In order to be able to start production again after troubleshooting, the scrap belt must be removed from the roller table.

For this purpose, the devices mentioned above are used, which can push the scrap in a horizontal direction transversely to the conveying direction of the roller table on Ablageroste. These are, for example, Vorbandabschieber, with which scrap from the rolling line are disposed of by pushing can. With such devices, the duration of the production downtime can be reduced and thus the efficiency of the rolling process can be increased.

A generic device is from the DE 22 02 848 A known. A device provided with a telescopic arm also shows the GB 966,055 A , The SU 1766548 A1 discloses a push-off device, with the metallic Good can be moved transversely to the conveying direction of the roller table. The estate is thereby moved with a movement arm, which is slidably mounted in a frame; on the movement arm finger-like gripping elements are arranged, which can contact the estate. The device builds relatively large in the direction transverse to the conveying direction of the roller table, since the movement arm must be moved over a large width.

Similar solutions go out of the SU 1060265 A , of the SU 1036422 A and the SU 582018 A out. In all cases, a relatively far projecting movement arm is provided, which is mounted displaceably in a housing transversely to the conveying direction of the roller table. The JP 10263624 A suggests a device in which the finger-like gripping elements can be moved down vertically in position as needed. Again, the movement arm protrudes relatively far in the direction transverse to the conveying direction of the roller conveyor. Also the DE-OS 26 00 784 describes the problem of the rapid removal of parts of the pre-strip from the roller conveyor, although details of constructive details of the Vorbandabschiebers are not made.

Although with the known devices for pushing away metallic material from or on the roller conveyor the possibility exists to manipulate the scrap belt, exist with the previously known solutions then problems when such Vorbandabschieber to be retrofitted into existing facilities. As a rule, existing systems do not provide the space to subsequently integrate a Vorbandabschieber of the known type can, as this requires a considerable amount of space. But even with new systems, the previously known systems have the disadvantage that they require a relatively large amount of space, which entails corresponding costs.

Another disadvantage is that not all prior art devices allow the deported debris from the roller conveyor back to the roller table when needed. In some cases, the scrap belts can be pushed off the roller table laterally. However, it is then necessary to shred and remove the no longer rollable slabs or pre-bands manually in the pushed-off to the Abstützost position using gas burners. This is associated with considerable effort and therefore expensive.

Therefore, it is desirable that the device is suitable both for pushing away scrap material from the roller table and again for pushing the scrap metal on the roller table. Then namely at a later time the scrap can be transported away on the roller table, which has significant economic benefits.

The invention is therefore the object of a device of the type mentioned in such a way that the mentioned disadvantages are overcome. The Abschiebevorrichtungen should therefore have a much lower space requirement, without the functionality of the device is adversely affected. In particular, both a deportation of the scrap material from the roller table as well as, if necessary, a postponement of the goods on the roller table should be possible.

The solution of this object by the invention is characterized by two gripping elements, one of which is arranged on the innermost, telescopically insertable arm part and one on the arm part, which receives the innermost telescopically insertable arm part directly.

This allows both a deportation of the scrap material from the roller table as well as a pushing back of the material from the shelf to the roller table in a simple manner.

Preferably, the movement arm on three arm parts, which are telescoped in the manner of a telescope.

A development provides that the arm parts have a rectangular cross-section basic contour. This achieves high stability, in particular against torsion about the longitudinal axis of the arm.

At least one of the gripping elements can be rotatably mounted about an axis-The axis is preferably oriented horizontally and points in the conveying direction of the Guts.

It is preferably provided that the gripping element arranged on the innermost telescopically insertable arm part is rotatably mounted about said axis; Furthermore, according to this embodiment of the invention arranged on the innermost telescopically insertable arm part directly receiving arm part gripping element is fixedly disposed on this arm part. Furthermore, it can be provided in this solution that arranged on the innermost telescopically insertable arm part gripping element is arranged and pivotable that the innermost telescopically insertable arm part together with gripping element largely, preferably completely, in which the innermost telescopically insertable arm part directly receiving arm can be inserted. This is achieved in a particularly advantageous manner that the device part, which is provided for the return of the scrap material from the storage rack on the roller table, in the event that it is not needed, is completely retracted into the arm and so does not constitute an obstacle. Another advantage is a hydraulic piston-cylinder system for displacement of the innermost, telescopically insertable Armteil provided relative to the innermost telescopically insertable arm part directly receiving arm.

It has proven useful that several devices of the type described are arranged along the roller table in order to move even longer scrap belts can. In this case it can be provided that at least two devices along the conveying device, the actuation of at least a portion of the arm parts takes place from a common drive device.

With the proposed device according to the invention, it is possible to realize in a particularly space-saving manner, a belt pusher, which is very well suited for retrofitting existing rolling mills. The small footprint of the device results in improved and more economical solutions even with new systems.

Fig. 1

die Draufsicht auf eine Fördervorrichtung für Brammen samt Periphe- rieteilen,

Fig. 2

die Seitenansicht einer Vorrichtung zum Verschieben von metalli- schem Gut beim Abschieben des Guts von der Fördervorrichtung und

Fig. 3

eine zu Fig. 2 korrespondierende Seitenansicht der Vorrichtung beim Zurückschieben des Guts auf die Fördervorrichtung.

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

Fig. 1

the top view of a conveying device for slabs together with peripheral parts,

Fig. 2

the side view of a device for moving metallic Good when pushing the Guts of the conveyor and

Fig. 3

one too Fig. 2 Corresponding side view of the device when pushing back the Guts on the conveyor.

In Fig. 1 It can be seen that along a conveyor device 3 in the form of a roller conveyor not shown metallic material can be conveyed in the conveying direction F. If there is a fault in the rolling mill and cools preheated rolling stock, which is conveyed via the conveyor 3 to a roller unit, not shown, too strong as a result of the disturbance, it must be disposed of as scrap. In order to remove the scrap material, so that the production process can be resumed after the fault has been eliminated, a storage rack 12 is arranged laterally next to the conveyor device 3.

Along the conveyor device 3 four device 1 for moving the metallic Guts are arranged in the illustrated example. With the devices 1, Gut located on the conveying direction 3 can be moved in a horizontal direction S perpendicular to the conveying direction F, both from the roller table 3 to the shelf 12 and in the opposite direction, ie from the shelf 12 on the roller table 3. The latter allows the scrap material can be removed via the roller table 3, if it is not needed for production.

Details of the structure of the device 1 are in the FIGS. 2 and 3 shown. The device 1 has a stationary stand 4, which is arranged laterally next to the roller table 3. In the stator 4, a movement arm 5 is slidably arranged in the direction S. In the end region 6 of the movement arm 5, a gripping element 7 is arranged in the form of a finger-shaped slide. As in Fig. 2 can be seen, by means of the gripping element 7 metallic Good 2 are pushed off the roller table 3 on the shelf 12. For this purpose, the movement arm 5 is moved relative to the stand 4 by means not shown drive elements to the right. After moving the arm 5, this has the in Fig. 2 partial dot-dash line position.

In order to keep the space required for the device 1 as small as possible and also to enable retrofitting existing rolling mills with the device 1, the movement arm 5 is designed in several parts. In the exemplary embodiment, it has two arm parts 5 ', 5 ", which can be pushed into one another in the manner of a telescope Fig. 2 2, the two arm parts 5 ', 5 "are shown pushed together in a telescoped manner (it can be seen that there is a relatively small footprint, in the present case through a wall 13) Nevertheless, a large displacement path of the product 2 in the direction S can be realized, as can be seen from the dot-dashed maximum end position of the movement arm 5 (on the right in FIG Fig. 2 ).

In order to be able to push off both goods 2 in the direction S from the roller table 3 to the shelf 12 and in the given case to push back Good 2 from the shelf 12 on the roller table 3, is provided in the embodiment that the arm part 5 'provided with the gripping element 7 is, with the estate 2 can be deported from the roller table 3 on the shelf 12. For the pushing back of the material 2 from the shelf 12 to the roller table 3, however, another gripping element 8 is provided which is arranged at the end of the innermost arm part 5 " Fig. 3 referenced where the illustrated in maximum extension position movement arm 5 is outlined.

It can be seen that the gripping element 8 is rotatably mounted about an axis 9, wherein the axis 9 is arranged horizontally and has in the conveying direction F. Thus, the gripping element 8 in the event that it is not needed, be pivoted in a horizontal position (with dotted lines is in Fig. 3 the pivoting of the gripping element 8 outlined in this position). By means of a movement arm 5 arranged in the piston-cylinder system 10 can then the innermost arm part 5 ", ie the innermost telescopic arm, are pulled into this directly receiving arm part 5 'until it is completely absorbed by this.

In Fig. 1 It can be seen that several, in the present case two, devices 1 can be driven by a common drive device 11, ie the displacement movement of the movement arm 5 in the direction S is performed by the drive device 11. The movement path of the movement arm 5 or its parts 5 ', 5 "can be detected via linear or rotary position encoders (not shown) .The movement arms 5 of the individual devices 1 can be coupled electrically, mechanically or hydraulically.

The device 1 is characterized in that in addition to the deportation of Good 2 from the roller table 3 on the shelf 12 also a pushing back of the grate 12 on the roller table 3 is possible. For this purpose, the "retraction arm" 5 "is integrated in the" Abschiebearm "5 'If the" retraction arm "5" is not needed, it can be completely submerged in the "Abschiebearm"5'. The arm part 5 "only extends when scrap material 2 is to be withdrawn from the storage rack 12 onto the roller table 3.

It can be provided that the finger-like gripping element 8 can be pivoted into the horizontal position (for sinking the arm part 5 "into the arm part 5 ') by means of an actuator (not shown) on the roller table 3 can be provided that this is done by the weight of the gripping element 8, which takes place automatically when the arm 5 "by means of the piston-cylinder system 10 sufficiently from the arm 5 'is pushed out.

The guide of the arm part 5 "can be made by moving rollers, which are arranged on or in the arm part 5 '. Guiding by round rods and sliding bushes or sliding strips is just as possible.

With the device 1, it is possible to dispose of scrap material 2 fully automatically. For this purpose, the scrap belt 2 is withdrawn in a rolling break or a planned furnace gap from the deposit rack 12 on the roller table 3 and fed via the roller table 3 of the scrap processing (in another part of the hall). The manual intervention in the danger zone of the roller table 3 is no longer necessary.

Thus, the rolling time can be optimized by means of the device 1, which has an increase in production of the rolling mill result.

LIST OF REFERENCE NUMBERS

1

Device for moving metallic material

2

metallic good

3

conveyor

4

stationary stand

5

bewegungsarm

5 '

arm

5 '

arm

6

end

7

gripping element

8th

gripping element

9

axis

10

Piston-cylinder system

11

driving device

12

down grid

13

Wall

F

conveying direction

S

direction perpendicular to the conveying direction

Claims (9)

1. Device (1) for pushing metallic products (2) off or onto a conveying device (3) in a direction (S) perpendicular to the conveying direction (F), wherein the device (1) comprises a movement arm (5), which is movable relative to a stationary stand (4) and in one end region (6) of which is arranged at least one gripper element (7, 8) for gripping the metallic product (2), wherein the movement arm (5) has at least two arm parts (5', 5") and wherein at least two of the arm parts (5', 5") are pushable one into the other in the manner of a telescope, characterised by two gripper elements (7, 8) of which one is arranged at the innermost, telescopically retractable arm part (5") and one is arranged at the arm part (5') which directly receives the innermost, telescopically retractable arm part (5").
2. Device according to claim 1, characterised in that the movement arm (5) has two arm parts (5', 5") which can be pushed one into the other in the manner of a telescope.
3. Device according to claim 1 or 2, characterised in that the arm parts (5', 5") have a plan profile which is rectangular in cross-section.
4. Device according to any one of claims 1 to 3, characterised in that at least one gripper element (8) is mounted to be rotatable about an axis (9).
5. Device according to claim 4, characterised in that the axis is oriented horizontally and points in conveying direction (F).
6. Device according to any one of claims 1 to 5, characterised in that the gripper element (8) arranged at the innermost, telescopically retractable arm part (5") is mounted to be rotatable about the axis (9) and that the gripper element (8) arranged at the arm part (5') directly receiving the innermost, telescopically retractable arm part (5") is fixedly arranged at this arm part (5').
7. Device according to any one of claims 1 to 6, characterised in that the gripper element (8) arranged at the innermost, telescopically retractable arm part (5") is so arranged and pivotable that the innermost, telescopically retractable arm part (5") inclusive of gripper element (8) can be substantially, preferably completely, pushed into the arm part (5') directly receiving the innermost, telescopically retractable arm part (5").
8. Device according to any one of claims 1 to 7, characterised by a hydraulic piston-cylinder system (10) for displacing the innermost, telescopically retractable arm part (5") relative to the arm part (5') directly receiving the innermost, telescopically retractable arm part (5").
9. Device according to any one of claims 1 to 8, characterised in that at least two such devices (1) are arranged along the conveying device (3), wherein the actuation of at least a part of the arm parts (5', 5") is carried out by a common drive device (11).

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