EP2516081B1 - Support for a metal coil and apparatuses comprising such a support - Google Patents

Description

Field of the invention

The invention is in the field of storage and processing of metal coils, also called coils.

State of the art

Today's hot strip mills are designed for the production of high-strength materials, for example with thicknesses up to 30 mm. The band to be wound in this case must be elastically and plastically formed in a coiler. In other words, the metal collar, or the coil, must be tamed in its shape. After forming the waistband, make sure that the waistband shape or coil shape is retained.

Unfortunately, it may occur in the current state of the art that the metal collar springs open by its residual stress like a clockspring and the turns of the collar relative to each other have gaps. If such a bond dissolves as described, the result is a high risk of accidents for the personnel on the one hand, and the risk of a considerable system damage on the other. In addition, the surface quality of the wound metal strip can be affected.

According to the current state of the art, therefore, a metal collar is tied several times in a coiler or immediately following by means of binding tape or welded the last Bundwindung with the penultimate to avoid the popping of the collar. At the same time we positioned the waistband so that the end of the tape is clamped in a hollow so that the waistband can not jump or roll. However, this is disadvantageously a certain minimum weight of the metal collar necessary to surpass the internal stress of the federal government. Furthermore, the binding tapes used, even with multiple binding, not always sufficient to compensate for the residual stress of the metal coils. Especially when moving metal bands, for example, between different wells, relative movements between the metal collars and the ties occur, so that the collar is damaged - or worse - the metal collar pops up, with the grave consequences mentioned above can occur.

The European patent 1 683 588 B1 shows a device for transporting metal coils on pallets. This document is mainly concerned with providing a device which, despite the accumulating influences of load and heat, represents a reliable transport system and in particular to ensure a stable running direction of a pallet. The support disclosed in this document essentially comprises four rigid supports, which have a fixed position relative to one another. A lying in this edition metal collar has in the circumferential direction of the collar, or in a direction perpendicular to the axis of rotation of the metal collar cross-section, only two support points. A disadvantage of this arrangement is that even with this device sufficient security for a transfer of metal coils is not guaranteed. At this point it should be briefly clarified that in such devices, other roles are often used, which can be made, for example, from the top of the federal government, such as for unwinding a split federal. However, such roles do not serve as a support for the federal government.

The publication GB 607,350 discloses a collar pad having a plurality of support members each rotatably supporting a pair of roller-bearing shafts.

The publication US 2,285,358 discloses a collar pad having a plurality of rollers for supporting a metal collar. Two of these roles are held by a hinged clamp, so that by two juxtaposed swivel brackets together with their roles, the metal collar can be placed on this.

The publication US 4,096,724 discloses a method and apparatus for winding a metal collar. In particular, two pivotable lever arm arrangements are used to ensure the winding of the federal government with changing collar diameter.

The publication WO 91/09694 A1 discloses a device for handling metal strip. In particular, after passing through an induction heater, the metal strip is deposited in bundles on swing frames, which each carry two rollers.

The publication US 3,889,381 discloses a pallet for supporting a large bundle of strip material. In particular, the apparatus disclosed in this publication may comprise an arrangement of a plurality of rollers mounted in pivot arms on which the collar can be deposited.

The publication US 2,122,674 discloses an apparatus for unwinding a metal collar. The metal collar is deposited on roller pairs stored in a fork. The fork can be pivoted above a shaft and a corresponding worm drive.

The technical task which results from the prior art is to provide an improved device for the storage and / or transport of metal coils or at least to overcome one of the above-mentioned disadvantages.

Disclosure of the invention

The technical object is achieved by the device according to the invention, which comprises a support for a metal collar, which has a circular cross section with a circular circumference substantially, wherein the support comprises at least three support points, which are arranged so that the metal collar in the direction of Contact the circumference at least three points if the metal collar is placed on the support. The inventive edition overcomes the disadvantages of the prior art. By providing three support points in the circumferential direction, it can serve for the purpose of safe storage and safe transportation of metal coils.

In a preferred embodiment of the support, the support comprises at least one support, on which a, preferably rotatable, support lever is arranged and wherein two, preferably rotatable, rollers are arranged on the support lever, which form two of the support points on which the metal collar can be placed. By this arrangement, a metal collar is particularly safe in the edition. Due to the rotatable support lever, this device can be used for various metal cross-sections.

In a further preferred embodiment of the support, the at least one support and the two rollers of the support, in a cross-section perpendicular to the axis of rotation of the metal collar, form essentially a triangle.

In a further preferred embodiment of the support the support points and / or the at least one support of the support are arranged and designed such that they contact the metal collar in a circle of up to 150 degrees. By this arrangement of the support points or rollers, the metal collar can be kept particularly well on or in the support.

In a further preferred embodiment of the support, the support comprises four support points. By providing four or at least four support points in the circumferential direction, a metal collar on the support can be even safer.

In a further preferred embodiment of the support, the support comprises two supports, on each of which one, preferably rotatable, support lever is arranged and wherein two rollers are arranged on each support lever, which form the support points and on which the metal collar can be stored. By this arrangement, a metal collar is particularly safe in the edition. Due to the rotatable support lever, this device can be used in particular for different metal cross-sections.

In a further preferred embodiment of the support, the horizontal spacing of the supports is adjustable. Because the distance of the supports, in particular the horizontal distance between the supports, can be adjusted as an option, the support can be used for many different collar diameters or collar cross sections. As a result, the edition is variable.

In a further preferred embodiment of the support, the support comprises a support and a further roller which is arranged such that it forms a third support point, which contacts the metal collar in the direction of the circumference, when the metal collar is placed on the support. By this embodiment of the support, on the one hand, the advantage of the supports described above can be used, but on the other hand, a third support point are formed by a simple role, whereby the construction of the system is simplified.

In a further preferred embodiment of the support, the horizontal spacing of the support and the further roller is adjustable. Characterized in that the distance between the other roller and the support, in particular together with its two rollers, is adjustable, can be stored divergent collar diameter.

In a preferred embodiment of the support each support point is formed in each case by a roller, which each extend substantially parallel to the axis of rotation of the metal collar. Characterized in that the support points are formed by rollers which extend parallel to the axis of rotation of the metal collar, the handling of the metal collar is simplified on the support. In particular, the rollers may be rotatable or rigid.

In a further preferred embodiment of the support, the rollers extend over the entire width of the metal collar. This ensures a good load-bearing capacity and transportability of the support.

In a further preferred embodiment of the support, the rollers are driven. If the rollers of the support are driven, they can, for example, directly serve for unwinding and winding up the metal collar in a sampling station.

Furthermore, the invention comprises a sampling station for taking samples of a metal collar, which comprises: a support according to the invention and means, preferably a chisel, for opening the metal collar; Means, preferably a pair of scissors, for severing a specimen and / or a tail and means for binding the metal waist after removal of a specimen. In particular, but not exclusively, in a sampling station, the inventive edition has the advantages already described above.

In a preferred embodiment, the sampling station comprises at least one pressure roller, which is arranged and formed so that they are pressed substantially from above onto the metal collar can to prevent a cracking of the open metal collar and / or means for rewinding the metal collar.

Furthermore, the invention comprises a pallet system, in particular for the storage and transport of metal coils, which comprises a pallet, which in turn comprises a support according to the invention. If the support according to the invention is provided on a pallet, then the device can be used even more flexibly.

In a preferred embodiment of the pallet system means for connection for a crane transport are provided on the pallet and / or on the support. By providing means for transporting the crane, such as standard connectors or hooks or eyes, the pallet system can be transported between different installations or can be easily loaded onto means of transport.

Furthermore, the invention comprises a reel device, in particular a hot strip reel, which comprises a reel dome and the above-described, inventive support and / or the above-described pallet system, wherein the reel device is designed such that a metal collar, which is located on the coiler mandrel on the support or can be stored on the pallet system. With the support according to the invention or the pallet system according to the invention, the reel can be operated in a particularly time-efficient and safe manner.

Moreover, the invention comprises a method for taking a sample or a tail from the sampling station described above, comprising the steps of: depositing the metal collar on the pad; Applying the at least one pressure roller to the upper side of the metal collar; Separating the metal collar; Unwinding the metal collar; Separating a sample or the tail; Rewinding the metal collar and finally, optionally, binding the metal collar.

Finally, the invention comprises a method for winding a metal collar with the above-described coiling device, which comprises the following steps: winding the metal collar on the coiler mandrel and removing the metal collar together with the support according to the invention or the pallet system according to the invention from the coiler mandrel.

Brief description of the figures

Figur 1

eine schematische Querschnittsansicht einer ersten nicht erfindungsgemäßen Metallbundauflage;

Figur 2

eine schematische Querschnittsansicht einer zweiten nicht erfindungsgemäßen Metallbundauflage;

Figur 3

eine schematische Querschnittsanstcht einer erfindungsgemäßen Auflage, ahnlich wie in Figur 2, jedoch mit einer horizontalen Verstelleinrichtung zwischen den einzelnen Auflagern:

Figur 4

ein Ausführungsbeispiel einer Probenentnahmestation, die eine Auflage und einen Metallbund, zum Beispiel gemäß der Figur 3, umfasst;

Figur 5

die Probenentnahmestation gemäß der Figur 4, jedoch mit bereits aufgetrenntem Metallbund und abgeschnittener Probe;

Figur 6

die Probenentnahmestation gemäß den Figuren 4 oder 5 während der Entnahme des Metallbunds aus der Station;

Figur 7

einen schematischen Querschnitt eines Ausführungsbeispiels eines Palettensystems, welches eine nicht erfindungsgemäße Auflage umfasst;

Figur 8

einen schematischen Querschnitt einer Haspelvorrichtung, welche derart ausgebildet ist, dass ein Palettensystem zur Lagerung und zur Entnahme des Metallbunds vom Haspeldorn verwendbar ist.

The figures of the embodiments will be briefly described below. Further details can be found in the detailed description of the embodiments. Show it:

FIG. 1

a schematic cross-sectional view of a first non-inventive metal collar support;

FIG. 2

a schematic cross-sectional view of a second non-inventive metal collar support;

FIG. 3

a schematic cross-sectional view of a support according to the invention, similar to in FIG. 2 , but with a horizontal adjustment device between the individual supports:

FIG. 4

an embodiment of a sampling station, a support and a metal collar, for example according to the FIG. 3 , comprises;

FIG. 5

the sampling station according to FIG. 4 but with already separated metal collar and truncated sample;

FIG. 6

the sampling station according to FIGS. 4 or 5 during removal of the metal collar from the station;

FIG. 7

a schematic cross section of an embodiment of a pallet system, which comprises a non-inventive support;

FIG. 8

a schematic cross section of a reel device, which is designed such that a pallet system for storage and removal of the metal collar from the coiler mandrel is used.

Detailed description of the embodiments

The FIG. 1 shows a first schematic embodiment of a non-inventive edition. Shown is a metal collar 1, which rests on three support points 2, 2 '. These three support points 2, 2 'are viewed in cross section, arranged in the direction of the circumference of the metal collar 1, when a metal collar 1 is placed on the support points 2, 2'. The cross section of the FIG. 1 In this case, the support points 2, 2 'by rollers 2, 2' or support rollers 2, 2 ', or in other words, be formed by storage rollers 2, 2' is perpendicular to the axis of rotation or to the winding axis of the metal. Preferably, two rollers 2 are arranged on a bearing lever 4, which in turn is preferably rotatably arranged on a support 3. Furthermore, in this embodiment, a roller 2 'is provided, which contacts the circumference of the metal collar 1 and in addition to the two rollers 2 forms a third support point 2'. The rollers 2, 2 'are preferably rotatable and / or driven, but may also be rigid. Preferably, two rollers 2 form a roller pair, which is arranged on a bearing lever 4. In particular, two rollers 2 with a pivot point of a support lever 4 or the support 3 essentially form a triangle. The illustrated device comprises a support 3, on which a support lever 4 is arranged. However, it is also possible to provide a plurality of such supports 3 with support lever 4 and rollers 2. A metal collar 1, on an after FIG. 1 designed support is applied exercises with its weight F _G, inter alia, a force F _S1 on the lower roller 1 of the support 3 and a force F _S2 on the other role 2 'from. As a result, the support 3 exercises over the support 3 rotatable lever 4 a torque on the upper roller 2 of the support 3 from. The upper roller 2 is thus pressed with a force F _A to the metal collar 1. By such a trained support metal collars 1 can be safely stored with different diameters or cross sections.

The FIG. 2 shows a schematic embodiment of another non-inventive edition. Shown is as in FIG. 1 a metal collar 1, but rests on four support points 2. These four support points 2 are viewed in cross section, arranged in the direction of the circumference of the metal collar 1 when a metal collar 1 is placed on the support points 2. The cross section of the FIG. 2 In this case also runs perpendicular to the axis of rotation or to the winding axis of the metal collar 1. Again, the support points 2 by rollers 2 or support rollers 2, or in other words, be formed by storage rollers 2. Preferably, two rollers 2 are arranged on a bearing lever 4, which in turn is preferably rotatably arranged on a support 3. The rollers 2 are preferably rotatable and / or driven, but may also be rigid. Preferably, two rollers 2 form a roller pair, which is arranged on a bearing lever 4. In particular, two rollers 2 with a pivot point of a support lever 4 or the support 3 essentially form a triangle. Overall, the illustrated edition preferably comprises two supports 3, on each of which a support lever 4 is arranged. The two supports 3 are viewed in the cross section of the collar 1 preferably right below and left below the collar 1 arranged. A metal collar 1, which is placed on a support constructed in this way, exerts, among other things, a force on the respectively lower rollers 2 of the respective support 3 with its weight F _G. As a result, they exert a torque on the respective upper rollers 2 of the respective support 3 via the lever 4, which is rotatable about the support 3. The upper rollers 2 are thus pressed with a force F _A to the metal collar 1. By means of such a support, metal collars 1, in particular with different diameters or cross sections, can be stored even more securely.

The FIG. 3 shows a similar embodiment of the invention as the FIG. 2 , Unlike the device, according to FIG. 2 , the edition of the FIG. 3 However, via an adjusting device 5. This adjustment is used to adjust the distance between the supports 3 and thus store or transport a virtually any range of different metal cross-sections. In particular, the adjusting device 5 is horizontally adjustable, optionally below, the support 3 is arranged. It may be formed, for example, by a piston-cylinder unit 5. The edition according to the FIG. 1 can be equipped with such a horizontal adjustment device 5.

The FIGS. 4 . 5 and 6 show an embodiment of a sampling station 10 for removal of the sample 23 of a metal collar 1, 11. In the FIG. 4 is a metal collar 11, analogous to the representation in the FIG. 3 , shown on a support according to the invention with rollers 12, adjusting device 5, supports 13 and bearing levers 14. For opening the metal collar 11, a separating device 19 with a means for separating 18 of the metal collar 11 is provided. In the embodiment of FIG. 4 the rollers 12 are driven, whereby the metal collar 11 is rotatable either clockwise or counterclockwise. Furthermore, the sampling station 10 preferably comprises a pair of scissors 21 or dividing scissors 21 for cutting off samples 23 from one end 22 of the metal collar 11. In order not to sever the split end 22 of the metal collar 11 upwards or outwards after a separation of the collar 11, it is preferred a pressing device 17 is provided which comprises, for example, two pressure rollers 16 which can be pressed onto the upper side of the metal collar 11 lying in the support or against this.

The sampling station 10 may then be operated, for example, as follows: The metal collar is either retracted into the sampling station 10 together with its support or the support is firmly installed in the sampling station 10 and the metal collar 11 is inserted into the station 10. Preferably, then the rollers 16 of the pressing device 17 are made from above to the metal collar 11 and rotated by means of the movable rollers 12 of the metal collar 11 in a desired position. By means of the release agent 18, for example with a chisel, the metal collar 11 is separated. As in FIG. 5 can be seen, following the separation of the metal collar 11 by the driven rollers 12 of the support, but also by other drive means or rollers, which are not shown, the metal collar can be unwound. For this purpose, for example, the separating means 20, in this case a roller, on the separating device 19, be helpful to facilitate the feeding of the metal collar end 22, and the band end 22, in the scissors 21. Subsequently, the scissors 21, as shown, a sample or Schopfstück 23 separate. At this point it should be mentioned that the construction of the devices 17 and 19 is familiar to the person skilled in the art. In a following step, by means of driven rollers, for example by the rollers 12, the metal collar can be rewound and bound with a binding device (not shown) known from the prior art.

FIG. 6 shows a possibility of removing the metal collar 11 from a sampling station 10, as already in the FIGS. 4 and 5 is shown. To remove the collar 11, the devices 17 and 19 are moved or moved to the side, so that the collar 11 can be lifted out of the sampling station 10 upwards. Alternatively, the invention also includes the possibility that the metal collar 11 is removed together with its support from the sampling station 10, for example together with a pallet downwards or upwards or alternatively to one of the sides of the sampling station.

FIG. 7 schematically shows a possible embodiment of a pallet system 30, which is a non-inventive or a support according to the invention, for example according to the FIGS. 2 to 6 includes. On the illustrated pallet system 30, a metal collar 31 is stored, which rests on four support points 32. These points are preferably formed by rollers 32 which are selectively rotatable and / or driven are. Alternatively, however, the support points can also be formed by rigidly arranged support elements. The construction of supports 33 and bearing levers 34 preferably corresponds to those according to FIGS FIGS. 2 to 5 , However, these are arranged on a pallet 35 or a carrier 35. The system 30 off FIG. 7 is versatile, for example for transport or storage. It is also possible to provide on the system 30, in particular on the pallet 35, but also on parts of the support, means for crane transport (not shown), so that the pallet system 30 can be transported within a manufacturing plant by a crane or for the transport can be loaded by truck, boat or train.

FIG. 8 shows a non-inventive embodiment of a support in a coiler 40. The reel device 40 shown in particular comprises a coiler mandrel 44 on which a metal collar 1, 11, 31 can be wound. The means for winding the metal collar 1, 11, 31 are not in the focus of the invention and are formed as known in the art. In FIG. 8 is the wound metal collar 31 on the pallet system 30 according to FIG. 7 stored. However, it is also possible a support without the pallet 35, as shown for example for the sampling station 10. According to the FIG. 8 the metal collar 31 can be pulled off in the direction of the axis of the coiler mandrel 44. In this case, the collar 31 rests, in particular, on the pallet system 30. Preferably, a bundling carriage 50 known per se is used for this purpose.

Generally speaking, the in FIG. 1 illustrated edition in the devices of FIGS. 4 to 8 that is, provided in a sampling station, a pallet system or in a reel device.

LIST OF REFERENCE NUMBERS

1 Metal collar / coil 2 role 2 ' role 3 In stock 4 Auflagerhebel 5 adjustment 10 Sampling station 11 Metal collar / coil 12 role 13 In stock 14 Auflagerhebel 15 adjustment 16 capstan 17 pressure device 18 release agent 19 separating device 20 separation means 21 scissors 22 unwound Bundende 23 Sample / Schopfende 30 pallet system 31 Metal collar / coil 32 role 33 In stock 34 Auflagerhebel 35 palette 40 coiler 44 coiler mandrel 50 coil car F _A Clamping force of an upper roller F _G weight force F _S Force on a lower roll F _S1 Force on a lower roll F _S2 Force on a roll

Claims (13)

1. A support for a metal coil (1, 11, 31), wherein the metal coil (1, 11, 31) has a substantially circular cross-section with a circular circumference and the support comprises at least three support points (2, 2', 12, 32) which are so arranged that these contact the metal coil (1, 11, 31) in the direction of the circumference at at least three points (2, 2', 12, 32) when the metal coil (1, 11, 31) is deposited on these support points (2, 2', 12, 32) and the support comprises two bearers (3, 13, 33), at each of which a bearer lever (4, 14, 34) is arranged, and arranged at each bearer lever (4, 14, 34) are two rollers (2, 12, 32) which form the support points (2, 12, 32) on which the metal coil (1, 11, 31) can be deposited, characterised in that the horizontal spacing of the bearers (3, 13, 33) is constructed to be adjustable.
2. The support according to claim 1, wherein at least one of the bearers (3, 13, 33) and the two rollers (2, 2', 12, 32) of the bearer (3, 13, 33) substantially form a triangle in a cross-section lying perpendicularly to the axis of rotation of the metal coil (1, 11, 31).
3. The support according to claim 2, wherein the support points (2, 2', 12, 32) as well as the bearers (3, 13, 33) of the support are so arranged and constructed that these contact the metal coil (1, 11, 31) in a part circle circumference of up to 150 degrees.
4. The support according to any one of the preceding claims, wherein each roller (2, 12, 32) extends substantially parallel to the axis of rotation of the metal coil (1, 11, 31).
5. The support according to any one of the preceding claims, wherein the rollers (2, 2', 12, 32) are constructed to be drivable.
6. The support according to any one of the preceding claims, wherein the rollers (2, 2', 12, 32) extend over the entire width of the metal coil (1, 11, 31).
7. A sample removal station (10) for removal of samples and/or crop ends (23) of a metal coil (1, 11, 31), which comprises the following:

   a support according to any one of the preceding claims;

   means (18), preferably a chisel, for opening the metal coil (1, 11, 31);

   means (21), preferably shears, for separating a sample piece and/or crop end (23); and

   means for binding the metal coil (1, 11, 31) after removal of the sample and/or the crop end (23) of the metal coil (1, 11, 31).
8. A sample removal station according to claim 7, which further comprises the following:

   at least one presser roller (16) which is so arranged and constructed that this can be pressed substantially from above onto the metal coil (1, 11, 31) in order to prevent the metal coil (1, 11, 31) from springing open; and/or

   means for winding back the metal coil (1, 11, 31).
9. A pallet system (30), particularly for storage and transport of metal coils (1, 11, 31), which comprises the following:

   a pallet (35) which comprises a support according to any one of claims 1 to 6.
10. A pallet system according to claim 9, wherein means for connection of a crane transport are provided at the pallet (35) and/or at the support.
11. A coiling device (40), particularly a hot-strip coiler (40), which comprises a coiling mandrel (44) and a support according to any one of claims 1 to 6 and/or a pallet system (30) according to claim 9 or 10, wherein the coiling device (40) is so constructed that a metal coil (1, 11, 31) disposed on the coiling mandrel (44) can be stored on the support or on the pallet system (30).
12. Method for removing a sample piece and/or a crop end (23) with use of the sample removal station (10) according to claim 7 or 8, which comprises the following steps:

    laying the metal coil (1, 11, 31) on the support in the sample removal station (10) or moving the metal coil (1, 11, 31), which was previously deposited on the support, together with the support into the sample removal station (10);

    laying the at least one presser roller (16) on the upper side of the metal coil (1, 11, 31); );

    undoing the metal coil (1, 11, 31);

    unwinding the metal coil (1, 11, 31);

    separating off a sample (23);

    winding back the metal coil (1, 11, 31); and

    selectable binding of the metal coil (1, 11, 31).
13. Method of winding a metal coil (1, 11, 31) by a coiling device (40) according to claim 11, which comprises the following steps:

    winding the metal coil (1, 11, 31) on the coiling mandrel (44); and

    withdrawing the metal coil (1, 11, 31) inclusive of the support or the pallet system (30) from the coiling mandrel (44).

Images