EP3795483A1 - Automated removal of binding strips from a coil - Google Patents

Abstract

A coil (4) has been produced by winding a strip (1). The coil (4) has two end faces (6) and a lateral surface (7) as well as a coil eye (8) with an eye axis (9). The tie straps (5) have a tie strap width (b). First, while the coil (4), viewed in the direction of the eye axis (9), rests with a first portion of its lateral surface (7) on a first support (10), those tie straps ( 5), which surround the coil (4) completely outside of the first sub-area when viewed in the direction of the eye axis (9). Then, while the coil (4) is seen in the direction of the eye axis (9) with a second sub-area on the first support (10) or a second support (15) rests, those binding tapes (5) removed that were not yet removed in step a). The first and second partial areas are spaced apart from one another by at least the width of the binding band (b), as seen in the direction of the eye axis (9).

Description

Field of technology

The present invention is based on a method for removing binding tapes from a coil produced by winding a tape, the coil having two end faces and a lateral surface as well as a coil eye with an eye axis and the binding tapes having a binding tape width.

The present invention is further based on a removal system for removing binding tapes from a coil produced by reeling a tape, the coil having two end faces and a lateral surface as well as a coil eye with an eye axis.

State of the art

A finished-rolled strip is usually reeled into a coil and transported in this form from a finishing train to a further plant, in which the coil is unwound again and then the strip is fed to further processing. The distance over which the coil is transported can be a few 100 m or many km. Further processing can be, for example, cold rolling with or without prior pickling. Other systems are also possible.

So that the coil is retained as such during transport, in particular outer turns of the coil do not become detached from the coil, the coil is tied with binding straps that run around the outer surface of the coil. The binding straps must be removed again before further processing in the further system become. The ties are preferably removed automatically.

In the prior art, the coil is positioned on a pair of ground rollers for this purpose, the ground rollers being tapered in those areas in which the binding straps of the coil run. This makes it possible to automatically split the tie straps and then automatically pull them off the coil.

The prior art procedure works very well as long as the binding tapes are positioned exactly at the points where the floor rollers have their tapered areas. In practice, however, this is often not the case. One possible cause for this is, for example, that the coil was reeled and tied in a finishing train after finishing rolling and the binding bands were placed at positions A, while the rest of the system is designed so that the binding bands are located at positions B, from the Positions A is different.

If the tie straps are not in their expected positions, the tie straps in the entrance area of the further system can be separated, but not pulled off the coil, since the tie straps are clamped between the coil and the floor rollers. Rather, the ties must be removed manually in this case. This is time consuming and cumbersome.

Summary of the invention

The object of the present invention is to create possibilities by means of which an automated removal of binding tapes is possible regardless of their positioning on the coil.

The object is achieved by a method of removing binding tapes from a coil produced by reeling a tape solved with the features of claim 1. Advantageous refinements of the removal method are the subject matter of the dependent claims 2 to 6.

1. a) dass zunächst, während das Coil in Richtung der Augenachse gesehen mit einem ersten Teilbereich seiner Mantelfläche auf einer ersten Auflage aufliegt, diejenigen Bindebänder entfernt werden, die in Richtung der Augenachse gesehen das Coil vollständig außerhalb des ersten Teilbereichs umgeben, und
2. b) dass sodann, während das Coil in Richtung der Augenachse gesehen mit einem zweiten Teilbereich auf der ersten Auflage oder einer zweiten Auflage aufliegt, wobei der erste und der zweite Teilbereich in Richtung der Augenachse gesehen mindestens um die Bindebandbreite voneinander beabstandet sind, diejenigen Bindebänder entfernt werden, die im Schritt a) noch nicht entfernt wurden.

According to the invention, a removal method for binding tapes is designed in such a way that

1. a) that initially, while the coil rests with a first portion of its lateral surface on a first support, viewed in the direction of the eye axis, those binding tapes are removed which, viewed in the direction of the eye axis, surround the coil completely outside the first portion, and
2. b) that then, while the coil rests with a second partial area on the first support or a second support, seen in the direction of the eye axis, the first and second partial areas being spaced apart from one another by at least the width of the binding tape, seen in the direction of the eye axis, those binding bands are removed that have not yet been removed in step a).

For example, it is possible that, viewed in the direction of the eye axis, the first sub-area contains the edge areas of the jacket surface of the coil adjoining the two end faces and the second sub-area contains a central area of the coil that is spaced from both end faces. In this case, the coil is supported “outside” in step a) so that the binding tapes arranged “inside” can be removed automatically, and then “inside” in step b) so that the “outside” arranged binding tapes are automatically removed can be. Alternatively, the reverse procedure is also possible, that is, the first partial area contains the central area of the coil and the second partial area contains the two edge areas of the coil. Other procedures are also possible, for example that the coil is supported in steps a) and b) once on the outside left, in the middle and on the right outside and once half on the left and half on the right.

The removal of the binding straps is often integrated into the transport of the coil from an entrance area of a further installation to a processing area of the further installation. The transport of the coil from the entrance area of the further system to the processing area of the further system often takes place in that the coil is moved in several stages in a substantially horizontal conveying direction from a first fixed saddle area to a second fixed saddle area, from the second fixed saddle area to a third fixed saddle area etc. is promoted up to a last fixed saddle area, so that the coil rests alternately on one of the saddle areas and the crotch bar. In this case it is possible that a predetermined one of the saddle areas corresponds to the first support, the crotch bar corresponds to the second support, step a) is carried out while the coil rests on the predetermined saddle area, and step b) is carried out, while the coil is conveyed by means of the step bar from the predetermined saddle area to the subsequent saddle area. Alternatively, it is possible that the crotch bar corresponds to the first support, a predetermined one of the saddle areas corresponds to the second support, step a) is carried out while the coil is conveyed from the previous saddle area to the predetermined saddle area by means of the step bar, and the step b) is carried out while the coil rests on the predetermined saddle area.

Within the scope of the removal method according to the invention, the eye axis can be oriented essentially orthogonally to the conveying direction. This is in contrast to the prior art, in which the eye axis is mostly oriented in the conveying direction. This procedure has the particular advantage that at the transition to the processing area of the further system, the coil does not have to be rotated by 90 ° about a vertically extending axis, but can be processed further directly. But there are also refinements possible in which the eye axis is oriented essentially in the conveying direction.

Before step a) is carried out, the coil is preferably rotated about its eye axis, so that a tape head of the tape has a predetermined orientation to a vertical plane containing the eye axis. This can prevent the coil from "popping open" after loosening and removing the tie straps, that is, the outermost turn from the coil loosens.

It is often an advantage if a diameter of the coil is determined by measurement. This can be particularly useful in order to adapt subsequent machining operations as a function of the diameter. The diameter is preferably determined while the coil rests with the first partial area on the first support in step a) and / or rests with the second partial area on the first or second support in step b).

The object is also achieved by a removal system having the features of claim 7. Advantageous refinements of the removal system are the subject matter of the dependent claims 8 to 14.

• dass die Entfernungsanlage entweder eine erste Auflage oder die erste Auflage und zusätzlich eine zweite Auflage aufweist,
• dass die erste Auflage derart ausgebildet ist, dass das Coil zu einem ersten Zeitpunkt in Richtung der Augenachse gesehen mit einem ersten Teilbereich seiner Mantelfläche auf einer ersten Auflage aufliegen kann,
• dass entweder die erste Auflage oder die zweite Auflage derart ausgebildet ist, dass das Coil zu einem nach dem ersten Zeitpunkt liegenden zweiten Zeitpunkt in Richtung der Augenachse gesehen mit einem zweiten Teilbereich seiner Mantelfläche auf der ersten Auflage oder auf der zweiten Auflage aufliegen kann,
• dass in beiden Fällen der erste und der zweite Teilbereich in Richtung der Augenachse gesehen voneinander beabstandet sind und
• dass die Entfernungsanlage eine Entfernungseinrichtung aufweist, mittels derer die in Richtung der Augenachse gesehen das Coil vollständig außerhalb des ersten Teilbereichs umgebenden Bindebänder entfernbar sind, während das Coil mit dem ersten Teilbereich seiner Mantelfläche auf der ersten Auflage aufliegt, und die übrigen das Coil umgebenden Bindebänder entfernbar sind, während das Coil mit dem zweiten Teilbereich seiner Mantelfläche auf der ersten oder der zweiten Auflage aufliegt.

According to the invention, a removal system of the type mentioned at the outset is designed in that

• that the removal system has either a first edition or the first edition and additionally a second edition,
• that the first support is designed in such a way that, at a first point in time, the coil, viewed in the direction of the eye axis, can rest on a first support with a first partial area of its lateral surface,
• that either the first support or the second support is designed in such a way that, at a second point in time after the first point in time, the coil has a second partial area of its The outer surface can rest on the first support or on the second support,
• that in both cases the first and the second partial area are spaced apart from one another as seen in the direction of the eye axis and
• that the removal system has a removal device by means of which the binding straps surrounding the coil completely outside the first sub-area, viewed in the direction of the eye axis, can be removed, while the coil rests with the first sub-area of its outer surface on the first support, and the remaining binding straps surrounding the coil can be removed are, while the coil rests with the second part of its lateral surface on the first or the second support.

Many advantageous refinements correspond to those of the method. Reference can therefore be made in many cases to the statements above.

If the removal of the binding straps is included in the transport of the coil from an entrance area to a processing area of a further system, it is possible that a predetermined one of the saddle areas corresponds to the first support and the crotch bar corresponds to the second support. Alternatively, it is possible that the crotch bar corresponds to the first support and the predetermined saddle area corresponds to the second support. In both cases it can be sufficient if the removal device can only be operated in the area of the predetermined saddle area.

The removal device, by means of which the binding straps are removed, can in particular be designed as a robot.

The removal device preferably has an optical detection device for detecting those surrounding the coil Ties on. This enables the binding straps to be recorded in a particularly simple and reliable manner.

Brief description of the drawings

FIG 1

eine Walzanlage,

FIG 2

eine Draufsicht auf ein Coil,

FIG 3

eine Seitenansicht des Coils von FIG 2,

FIG 4

eine Seitenansicht eines Coils auf einer ersten Auflage,

FIG 5

das Coil von FIG 4 nach dem Entfernen eines Teils der Bindebänder,

FIG 6

eine Seitenansicht des Coils von FIG 5 auf der ersten Auflage,

FIG 7

das Coil von FIG 6 nach dem Entfernen des verbleibenden Teils der Bindebänder,

FIG 8

das Coil der FIG 4 bis 7 und seine Bindebänder,

FIG 9

eine Seitenansicht eines Coils auf einer ersten Auflage,

FIG 10

eine weitere Seitenansicht eines Coils auf einer ersten Auflage,

FIG 11

das Coil der FIG 9 und 10 und seine Bindebänder,

FIG 12

eine Seitenansicht eines Coils auf einer ersten Auflage,

FIG 13

das Coil von FIG 12 nach dem Entfernen eines Teils der Bindebänder,

FIG 14

eine Seitenansicht des Coils von FIG 13 auf einer zweiten Auflage,

FIG 15

das Coil von FIG 14 nach dem Entfernen des verbleibenden Teils der Bindebänder,

FIG 16

einen Transportgang von der Seite,

FIG 17

den Transportgang von FIG 16 von oben,

FIG 18

eine Ansicht eines einzelnen Sattelbereichs und

FIG 19

eine Seitenansicht eines Coils.

The properties, features and advantages of this invention described above and the manner in which they are achieved will become clearer and more clearly understood in connection with the following description of the exemplary embodiments, which are explained in more detail in connection with the drawings. Here show in a schematic representation:

FIG 1

a rolling mill,

FIG 2

a top view of a coil,

FIG 3

a side view of the coil of FIG FIG 2 ,

FIG 4

a side view of a coil on a first support,

FIG 5

the coil of FIG 4 after removing part of the ties,

FIG 6

a side view of the coil of FIG FIG 5 on the first edition,

FIG 7

the coil of FIG 6 after removing the remaining part of the ties,

FIG 8

the coil of the FIGS. 4 to 7 and his ties,

FIG 9

a side view of a coil on a first support,

FIG 10

another side view of a coil on a first support,

FIG 11

the coil of the FIGS 9 and 10 and his ties,

FIG 12

a side view of a coil on a first support,

FIG 13

the coil of FIG 12 after removing part of the ties,

FIG 14

a side view of the coil of FIG FIG 13 on a second edition,

FIG 15

the coil of FIG 14 after removing the remaining part of the ties,

FIG 16

a transport corridor from the side,

FIG 17

the transport corridor of FIG 16 from above,

FIG 18

a view of a single saddle area and

FIG 19

a side view of a coil.

Description of the embodiments

According to FIG 1 a metal strip 1 is rolled in a rolling mill. Only the last roll stand 2 of the rolling installation is shown. After rolling, the metal strip 1 is reeled into a coil 4 by means of a reel installation 3. The reeled coils 4 are then tied with binding tapes 5 (see FIG 2 ) and removed from the rolling mill.

The FIG 2 and 3rd show a coil 4 after binding. The coil 4 essentially has a cylindrical shape. According to the FIG 2 and 3rd the coil 4 thus has two end faces 6 and a jacket surface 7. The coil 4 also has a coil eye 8 with an eye axis 9. As far as the procedure according to the invention is concerned, the eye axis 9 is generally oriented horizontally. The coil 4 has a diameter D and a coil width B. The binding straps 5 extend on the jacket surface 6 around the coil 4. They have a binding band width b. The binding band width b is considerably smaller than the coil width B. For example, the binding band width b can be 4 cm, while the coil width B can be 1 m, for example. The number of ties 5 can be as required. Usually it is between one and four. As shown in FIG 2 For example, three binding straps 5 can be present.

For the automated removal of the binding tapes 5 from the coil 4, the coil 4 is initially in accordance with FIG FIG 4 with a first partial area of its lateral surface 7 on a first support 10. The first sub-area, viewed in the circumferential direction around the eye axis 9 - of course - only extends over a part of the circumference of the coil 4. Above all, however, the first sub-area extends as shown in FIG FIG 4 in the direction of the eye axis 9 seen only over part of the coil width B. For example, the first support 10 can have two supports 11, which in turn have a respective support width b 'seen in the direction of the eye axis 9 and are spaced apart from one another by a predetermined support distance a when seen in the direction of the eye axis 9 are. For example, the two supports 11 can have a support width b ′ of 10 cm and be spaced from one another by 50 cm. Here, too, the numerical values mentioned are of course to be understood purely as examples.

In this state, so while the coil 4 is placed on the first support 10, according to the illustration in FIG FIG 5 by means of a removal device 12, first of all those binding tapes 5 are removed which, viewed in the direction of the eye axis 9, surround the coil 4 completely outside the first partial area. If, for example, the coil 4 rests on the supports 11 in such a way that the in FIG 4 the left end face 6 is at a distance of 5 cm from the left support 11 and, accordingly, with a coil width B of 1 m, the right end face 6 has a distance of 35 cm from the right support 11 and furthermore - purely by way of example the binding tape width b is 4 cm, so in this state all tie straps 5 can be removed, the center of which has a distance from the left end face 6 which is either between 17 cm and 53 cm or is greater than 67 cm. As a precaution, a certain tolerance can still be taken into account, so that, for example, only binding tapes 5 are removed whose center is at a distance from the left end face 6 that is either between 19 cm and 51 cm or greater than 69 cm.

So if, for example, as shown in FIG 2 a total of three binding tapes 5 are present, the middle of the two outer binding tapes 5 each being spaced 15 cm from the adjacent front side and the middle of the middle binding tape 5 being equally spaced from both front sides 6, so in this state the left Tying tape 5 is clamped by the left support 11 and can therefore not be removed in this state. The middle and right binding tape 5, however, can be removed. FIG 5 shows this state in which the two aforementioned binding tapes 5 have been removed.

At a later point in time, that is, after the removal of those binding tapes 5 which are in the state according to FIG FIG 4 can be removed, the coil 4 then rests with a second partial area on the first support 10. FIG 6 shows this state. The second sub-area, like the first sub-area, extends in the circumferential direction around the eye axis 9 only over part of the circumference of the coil 4. Above all, however, the second sub-area extends as shown in FIG FIG 6 Seen in the direction of the eye axis 9, likewise only over a part of the coil width B. It is decisive that the first and the second partial area, seen in the direction of the eye axis 9, are spaced apart from one another by at least the binding tape width b. For example, the coil 4 can rest on the supports 11 in such a way that the in FIG 4 The right end face 6 is at a distance of 5 cm from the right support 11 and, accordingly, with a coil width B of 1 m, the left end face 6 has a distance of 35 cm from the left support 11. In this state, those binding tapes 5 can now be removed by means of the removal device 12 which were not previously removed.

Based on the aforementioned, purely exemplary numerical values, all binding tapes 5 can now be removed, the center of which is at a distance from the left end face 6 that is either less than 33 cm or between 47 cm and 83 cm. As a precaution, a certain tolerance can again be taken into account so that, for example, only binding tapes 5 are removed whose center is at a distance from the left end face 6 that is either less than 31 cm or between 49 cm and 81 cm. FIG 7 shows this state in which the remaining binding tapes 5 are also removed.

FIG 8 illustrates this again. In FIG 8 the coil 4 and its tie straps 5 are shown. Furthermore, in FIG 8 those areas of the lateral surface 7 are shown from which the binding tapes 5 can be removed in the first and in the second state. The areas for the first state are in FIG 8 with I, the areas for the second state with II. It can be seen that the areas in their entirety cover the coil 4 without gaps over its entire width B.

The removal of the binding tapes 5 as such can be carried out in the same way as in the prior art. The associated removal device 12 - that is, the device which removes the binding tapes 5 from the coils 4 - can thus be designed as required. For example, the removal device 12, as shown in FIGS FIG 5 and 7th indicated schematically, be designed as a robot. It is also possible for the positions of the binding tapes 5 on the coil 4 to be specified by an operator or otherwise known to a control device 13 for the removal device 12 (usually a numerical control). Preferably, however, the removal device 12 has an optical detection device 14 by means of which the binding strips 5 surrounding the coil 4 are automatically detected. The optical detection device 14 can be designed as a laser scanner, for example. If the optical detection device 14 is present, the optical detection device 14 transmits the data (e.g. images) or evaluation results based on it to the control device 13. The control device 13 then takes into account the data or evaluation results transmitted to it as part of the control of the distance device 12th

A measuring device 12 ′ is preferably also assigned to the distance device 12. In particular, the coil diameter D can be determined by means of the measuring device 12 'and transmitted to a control device (not shown in the FIG.) are issued. During the metrological determination of the coil diameter D, the coil 4 can rest on the first support 10 alternatively with the first partial area or with the second partial area.

In the following, in connection with the FIGS 9 and 10 another possible embodiment of the removal system according to the invention is explained. This configuration differs from that described above in connection with FIGS FIGS. 4 to 8 explained removal system by coordinating the design of the supports 11 and the manner in which the coil 14 rests on the supports 11. The other statements are still valid.

According to the FIGS 9 and 10 the supports 11 form a sequence of supports 11. The supports 11 have a relatively large support width b ′, as seen in the direction of the eye axis 9. It can be a little less than half the column spacing a. The theoretical maximum is half the column spacing a minus half the binding tape width b '. For example, with a support spacing a of 1 m, the support width b 'can be 40 cm.

According to FIG 9 the coil 4 initially rests on the supports 11 in such a way that the edge regions of the jacket surface 7 of the coil 4 adjoining the two end faces 6 rest on adjacent supports 11. The corresponding first partial area thus contains the edge areas of the jacket surface 7 of the coil 4 adjoining the two end faces 6. In this state, those binding tapes 5 which are located outside the two edge areas of the coil 4 are removed. With the above numerical examples (coil width B 1 m, binding tape width b 4 cm, column width b '40 cm and column spacing a 1 m), all binding tapes 5 can be removed, the center of which from the left end face 6 is at a distance of between 22 cm and 78 cm lies. If a certain tolerance is also taken into account, all binding tapes 5 can be removed, for example, the center of which is from the left front side 6 has a distance which is between 24 cm and 76 cm. In the in the FIGS 9 and 10 Thus, for example, only the middle binding tape 5 can initially be removed, for example.

At a later point in time, the coil 4 is then in accordance with FIG 10 on the supports 11 in such a way that the central region of the coil 4 rests on the supports 11. The central area of the coil 4 is that area which is spaced apart from the two end faces 6. The central area preferably contains, in particular, that area which is spaced equally from both end faces 6. The corresponding second sub-area contains the central area of the jacket surface 7 of the coil 4, which is spaced apart from both end faces 6. In this state, the remaining binding tapes 5, which have not yet been removed, are removed. With the above numerical examples, it is thus possible to remove all binding tapes 5 whose center is at a distance of less than 28 cm from one of the two end faces 6. If a certain tolerance is also taken into account, all binding tapes 5 can be removed, for example, the center of which is at a distance of less than 26 cm from one of the two end faces 6. In the in FIGS 9 and 10 The example shown, for example, the two outer tie straps 5 can now be removed.

The step size is therefore exactly or at least about half as large as the column spacing a. As a result of this coordination of the step size with the support spacing a, all binding tapes 5 can thus be removed in two successive steps. This is over FIG 11 can be seen in which those areas are marked with I and II, in which the binding tapes 5 in the state according to FIG 9 and in the state according to FIG 10 can be removed. It can be seen that the areas in their entirety cover the coil 4 without any gaps over its entire width B.

The order in which the coil 4 rests on the supports 11 can of course also be reversed. So the state according to FIG 10 are accepted and then the state according to FIG 9 . The procedure according to the FIGS 9 and 10 has the advantage in both cases that a plurality of coils 4 can be transported through the removal system sequentially one after the other, so that for example one coil 4 is always transported from the left and is transported away to the right.

As far as explained so far, the same support 10 is used for both states in which the respective coil 4 rests with a partial area on a support, that is to say the first support 10 according to the terminology of the present invention. However, it is also possible for the coil 4 in the first state to initially rest on a first support 11 and then in the second state on a second support 15 (see FIG FIGS. 12 to 15 ). This procedure is discussed below in conjunction with the FIGS. 12 to 15 explained in more detail. This configuration differs from the above in connection with the FIGS. 4 to 8 or 9 to 11 explained removal systems by coordinating the configuration of the supports 11 and the manner in which the coil 14 rests on the supports 11. The other statements are still valid. As far as the metrological detection of the coil diameter D is concerned, this can alternatively be carried out while the coil 4 rests with the first partial area on the first support 10 or with the second partial area on the second support 15.

According to FIG 12 the coil 4 initially rests on the first support 10 with the first partial area of its lateral surface 7. The first sub-area extends in the circumferential direction around the eye axis 9 again only over part of the circumference of the coil 4 and also over only part of the coil width B seen in the direction of the eye axis 9. For example, the first support 10 can have two supports 11 as before have, in turn seen in the direction of the eye axis 9 a have respective support widths b 'and, viewed in the direction of the eye axis 9, are spaced apart from one another by a predetermined support spacing a. For example, the two supports 11 can have a support width b ′ of 30 cm and be spaced from one another by a support distance a of 90 cm. The numerical values mentioned are again to be understood purely as examples.

In this state, while the coil 4 is placed on the first support 10, the removal device 12 can initially be used to remove those binding tapes 5 which, viewed in the direction of the eye axis 9, surround the coil 4 completely outside the first partial area. If, for example, the coil 4 is placed centrally on the supports 11, so that a coil center axis 16 is equidistant from both supports 11, then in this state all binding tapes 5 can be removed that are outside of the areas covered by the two supports 11 (plus the binding tape width b ) defined areas are arranged. In the specific design according to FIG 12 and 13th is this only the middle tie 5. FIG 13 shows this state in which the middle binding tape 5 is removed.

After removing those binding tapes 5 that are in the state according to FIG 12 can be removed, the coil 4 then lies as shown in FIG FIG 14 with a second partial area on the second support 15. The second support 15 can be designed, for example, as a single support which extends over a certain length as seen in the direction of the eye axis 9. The length of the second support 15 must be selected such that it is smaller than the support spacing a of the two supports 11 minus twice the binding tape width b and additionally minus the support width b '. For example, with a support spacing a of 90 cm, a support width b 'of 20 cm and a binding tape width b of 4 cm, the second support 15 may extend a maximum of 62 cm in the direction of the eye axis 9. In practice, the value will be chosen to be lower, so that the second support 15, viewed in the direction of the eye axis 9, extends, for example, over 40 cm or 50 cm.

At a point in time after the removal of binding tapes 5 in the state according to FIG FIG 13 the coil 4 rests centrally on the second support 15, so that the coil 4 protrudes exactly or at least substantially the same distance over the second support 15 on both sides, or the two end faces 6 exactly or at least substantially the same distance are spaced from the second support 15. FIG 14 shows this state. In this state, those binding tapes 5 can be removed that are in the state according to FIG FIG 12 have not yet been removed. FIG 15 shows the state in which all binding tapes 5 have now been removed.

The procedure according to the FIGS. 12 to 15 is therefore similar to the procedure according to FIGS. 9 to 11 . The difference is that when you proceed according to the FIGS. 12 to 15 the coil 4 rests successively on different supports 10, 15, namely on the first support 10 and on the second support 15, while the coil 4 in the procedure according to FIGS FIGS. 9 to 11 rests both times on the same support 10, namely on the first support 10.

In many cases the removal of the binding tapes 5 is as shown in FIGS FIG 16 and 17th involved in the transport of the coils 4 from an input station 17 to a further processing station 18. In this case, a transport aisle from the input station 17 to the further processing station 18 has several saddle areas 19. The saddle areas 19 are stationary. They are arranged one behind the other as seen in a conveying direction x. The conveying direction x is generally horizontal or at least essentially horizontal. The saddle areas 19 generally have, as shown in FIG FIG 18 in each case two support areas 20 which are oriented in an orthogonal to the conveying direction x, likewise horizontal or at least substantially horizontal transverse direction y are spaced apart.

The saddle areas 19 are at a distance a 'from the center of the respective saddle area 19 to the center of the following saddle area 19. To convey the coil 4 (or all coils 4 arranged in the transport aisle), the corresponding coil 4 is first placed on the foremost saddle area 19, for example by means of a crane (not shown), that is to say on the one in the FIG 16 and 17th The saddle area 19 shown on the left. The coil 4 is then conveyed by means of a step bar 21 from this saddle area 19 to the next saddle area 19 and so on up to the rearmost saddle area 19. The crotch bar 21 is arranged between the support areas 20 of the saddle areas 19 as seen in the transverse direction y. The step size of the step bar 21 corresponds to the distance a 'of the saddle areas 19 from one another.

In order to convey the coils 4, the step bar 21 is raised so that it raises the coils 4 that rest on the saddle areas 19. This is in FIG 16 indicated by an arrow P1. The coils 4 now rest on the step bar 21. In this state, the step bar 21 is moved to the right. This is in FIG 16 indicated by an arrow P2. The addition a 'is intended to indicate that the step bar 21 is moved to the right by its step width. Next, the crotch bar 21 is lowered so that the crotch bar 21 lowers the coils 4, which rest on it, onto the saddle areas 19. The coils 4 have thus been passed on by one saddle area 19 each. Lowering is in FIG 16 indicated by an arrow P3. The coils 4 now rest on the saddle areas 19 again. Finally the step bar 21 is moved to the left. This is in FIG 16 indicated by an arrow P4. The addition a 'should again indicate that the step bar 21 is moved to the right by its step width. This is the cycle by means of which the coils 4 from a certain saddle area 19 to each next saddle area 19 are promoted, completed. As a result, the coil 4 is thus conveyed by means of the step bar 21 in the conveying direction x in several stages from the first saddle area 19 to the second saddle area 19, from there to the third fixed saddle area 19 and so on to the last saddle area 19. In a single conveying step, the coil 4 is conveyed further by the distance a '. During the conveyance from the saddle area 19 to the saddle area 19, the coil 4 rests on the crotch bar 21. In between, the coil 4 rests in each case on one of the saddle areas 19.

It can readily be seen that the support areas 20 of one of the saddle areas 19 with the supports 11 of the configuration according to FIGS FIGS. 12 to 15 and thus the corresponding saddle area 19 can correspond to the first support 10. It can also be seen without further ado that the crotch bar 21 with the second support 15 of the configuration according to FIGS FIGS. 12 to 15 can correspond. So it is in the design according to FIGS. 16 to 18 possible to first remove the binding straps 5, which are arranged relatively far inside, while the coil 4 rests on one of the saddle areas 19. While the coil 4 is resting on the crotch bar 21, that is to say while it is being conveyed to the next saddle area 19, the remaining binding straps 5 can then be removed.

It is also readily apparent that the reverse procedure can also be used. In this case, the crotch bar 21 can correspond to the first support 10, so that the first part of the binding tapes 5 is removed while the coil 4 rests on the crotch bar 21. In this case, the following saddle area 19 continues to correspond to the second support 15. The remaining binding straps 5 are thus removed in this case while the coil 4 rests on this saddle area 19.

In both cases it can be sufficient if the removal device 12 can only be operated in the area of the corresponding saddle area 19. In particular, it is possible to lift the coil 4 only slightly from the corresponding saddle area 19 by means of the crotch bar 21 or to stop the crotch bar 21 shortly before the coil 4 is set down on the corresponding saddle area 19 and to remove the corresponding ties 5 in this state. However, it is of course also possible to configure the removal device 12 in such a way that it can be operated beyond the area of the corresponding saddle area 19, for example up to the following or from the preceding saddle area 19.

It is conceivable to remove those binding tapes 5 which are removed while the coil 4 rests on the crotch bar 21 during the movement of the crotch bar 21. In this case, the removal device 12 must follow the movement of the step bar 21. Preferably, however, the movement of the crotch bar 21 is interrupted so that the crotch bar 21 is not moved during the period during which the coil 4 rests on the crotch bar 21 and part of the binding tapes 5 is removed. This procedure has the advantage that the control of the distance device 12 does not have to be coordinated with the ongoing movement of the step bar 21.

As far as the orientation in the xy plane is concerned, the eye axis 9 can be oriented parallel to the conveying direction x. As a rule, however, the eye axis 9 is oriented orthogonally to the conveying direction x.

The metal strip 1 coiled to form the coil 4 has, as shown in FIG FIG 2 and 3rd a tape head 22, that is to say the last reeled piece of the metal tape 1. Preferably, the removal device 12 is preceded by a rotating device 23. For example, the rotating device 23 can according to the illustration in FIG FIG 17 Part of the saddle area 19, which is arranged immediately upstream of that saddle area 19 at which part of the binding straps 5 is removed. Alternatively, at least one other saddle area 19 can be arranged between the saddle area 19, which has the rotating device 23 as a component, and the saddle area 19, from which some of the binding straps 5 are removed. The coil 4 is rotated about its eye axis 9 by means of the rotating device 23, so that the tape head 22 has a predetermined orientation relative to a vertical plane, which in turn contains the (horizontally oriented) eye axis 9. For example, the coil 4 can be rotated in such a way that the tape head 22 as shown in FIG FIG 19 is arranged below a horizontal plane containing the eye axis 9, encloses an angle α with said vertical plane which is between 30 ° and 45 ° and the outermost turn of the coil 4, calculated from the tape head 22, first its deepest point and only then reached their highest point.

The present invention has many advantages. The most important advantage is that the binding tapes 5 can be reliably and automatically removed regardless of their position on the coil 4. Another advantage is that in the case of conveyance of the coils 4, depending on the design of the associated conveying device, the eye axes 9 of the coils 4 can be oriented parallel to the conveying direction x as required (see the explanations relating to FIGS FIGS 9 and 10 ) or can be oriented orthogonally to the conveying direction x (see the comments on the FIGS. 16 to 18 ).

Although the invention has been illustrated and described in detail by the preferred exemplary embodiment, the invention is not restricted by the disclosed examples and other variants can be derived from them by the person skilled in the art without departing from the scope of protection of the invention.

List of reference symbols

1

Metal band

2

Roll stand

3

Reel system

4th

Coils

5

Ties

6th

End faces

7th

Outer surface

8th

Coil eye

9

Eye axis

10

first edition

11

Support

12th

Removal device

12 '

Measuring device

13th

Control device

14th

optical detection device

15th

second edition

16

Coil center axis

17th

Entrance station

18th

Finishing station

19th

Saddle areas

20th

Support areas

21st

Step bar

22nd

Tape head

23

Rotating device

a

Support spacing

a '

distance

B.

Coil width

b

Binding bandwidth

b '

Column width

D.

Coil diameter

P1 to P4

Arrows

x

Conveying direction

y

Transverse direction

α

angle

Claims (14)

Removal method for binding tapes (5) from a coil (4) produced by reeling a tape (1), the coil (4) having two end faces (6) and a lateral surface (7) as well as a coil eye (8) with an eye axis (9) and the binding tapes (5) have a binding tape width (b), a) first of all, while the coil (4), viewed in the direction of the eye axis (9), rests with a first portion of its lateral surface (7) on a first support (10), those binding tapes (5) which are in the direction of the eye axis are removed (9) surround the coil (4) completely outside the first sub-area, and b) then, while the coil (4), viewed in the direction of the eye axis (9), rests with a second partial area on the first support (10) or a second support (15), the first and the second partial area in the direction of the eye axis (9) are spaced apart from one another by at least the binding tape width (b), those binding tapes (5) are removed which have not yet been removed in step a). Removal method according to claim 1,
characterized,
that , viewed in the direction of the eye axis (9), the first sub-area contains the edge areas of the jacket surface (7) of the coil (4) adjoining the two end faces (6) and the second sub-area contains a central area of the coil (4) spaced from both end faces (6) ) or, conversely, the first sub-area contains the central area of the coil (4) and the second sub-area contains the two edge areas of the coil (4). Removal method according to claim 1 or 2,
characterized, - that the coil (4) by means of a step bar in several stages in a substantially horizontal conveying direction (x) from a first fixed saddle area (19) to a second fixed saddle area (19), from the second fixed saddle area (19) to a third fixed saddle area (19) etc. up to a last fixed saddle area (19) so that the coil (4) alternates on one of the saddle areas (19) and the crotch bar (21) rests, - that either a predetermined one of the saddle areas (19) corresponds to the first support (10), the crotch bar (21) corresponds to the second support (15), step a) is carried out while the coil (4) is on the predetermined saddle area (19) rests, and step b) is carried out while the coil (4) is conveyed by means of the step bar (21) from the predetermined saddle area (19) to the subsequent saddle area (19), - Or, conversely, the crotch bar (21) corresponds to the first support (10), a predetermined one of the saddle areas (19) corresponds to the second support (15), step a) is carried out while the coil (4) is carried out by means of the step bar ( 21) is conveyed from the previous saddle area (19) to the predetermined saddle area (19), and step b) is carried out while the coil (4) rests on the predetermined saddle area (19). Removal method according to claim 3,
characterized,
that the eye axis (9) is oriented essentially orthogonally to the conveying direction (x). Removal method according to one of the above claims,
characterized,
that before step a) the coil (4) is rotated about its eye axis (9) so that a tape head (22) of the tape (1) has a predetermined orientation to a vertical plane containing the eye axis (9). Removal method according to one of the above claims,
characterized,
that a diameter (D) of the coil (4) is determined by measurement while the coil (4) rests with the first partial area on the first support (10) in step a) and / or rests with the second partial area on the first or second support (10, 15) in step b). Removal system for removing binding tapes (5) from a coil (4) produced by winding a tape (1), the coil (4) having two end faces (6) and a lateral surface (7) as well as a coil eye (8) with an eye axis ( 9) has, - wherein the removal system has either a first support (10) or the first support (10) and additionally a second support (15), - wherein the first support (10) is designed in such a way that the coil (4), viewed in the direction of the eye axis (9) at a first point in time, can rest with a first partial area of its lateral surface (7) on a first support (10), - wherein either the first support (10) or the second support (15) is designed in such a way that the coil (4) has a second partial area of its lateral surface (seen in the direction of the eye axis (9)) at a second point in time after the first point in time ( 7) can rest on the first support (10) or on the second support, - wherein in both cases the first and the second sub-area are spaced apart from one another as seen in the direction of the eye axis (9) and - wherein the removal system has a removal device (12) by means of which the binding strips (5) surrounding the coil (4) completely outside the first sub-area when viewed in the direction of the eye axis (9) can be removed, while the coil (4) with the first sub-area its outer surface (7) rests on the first support (10), and the other binding strips (5) surrounding the coil (4) can be removed, while the coil (4) with the second portion of its outer surface (7) on the first or the second edition (10, 15) rests. Removal system according to claim 7,
characterized,
that the first support (10) is designed in such a way or the first and second support (10, 15) are designed such that, viewed in the direction of the eye axis (9), the first partial area is the edge areas of the lateral surface adjoining the two end faces (6) (7) of the coil (4) and the second sub-area contains a central area of the coil (4) spaced from both end faces (6) or, conversely, the first sub-area contains the central area of the coil (4) and the second sub-area contains the two edge areas of the coil (4) contains. Removal system according to claim 7 or 8,
characterized, - That the removal system has a first fixed saddle area (19), a second fixed saddle area (19) etc. up to a last fixed saddle area (19), - That the removal system has a step bar (21), by means of which the coil (4) in a substantially horizontal conveying direction (x) in several stages from the first fixed saddle area (19) to the second fixed saddle area (19), from the second fixed saddle area ( 19) can be conveyed to the third fixed saddle area (19) etc. up to the last fixed saddle area (19), so that the coil (4) rests alternately on one of the saddle areas (19) and the crotch bar (21) during conveyance, - that either a predetermined one of the saddle areas (19) corresponds to the first support (10) and the crotch bar (21) corresponds to the second support (15) or the crotch bar (21) corresponds to the first support (10), the predetermined saddle area (19) corresponds to the second edition (15) and - That the removal device (12) can be operated at least in the area of the predetermined saddle area (19). Removal system according to claim 9,
characterized,
that the eye axis (9) is oriented essentially orthogonally to the conveying direction (x). Removal system according to one of Claims 7 to 10,
characterized,
that it has a rotating device (23) upstream of the removal device (12), by means of which the coil (4) can be rotated about its eye axis (9) so that a tape head (22) of the tape (1) has a predetermined orientation to the eye axis (9) containing vertical plane. Removal system according to one of Claims 7 to 11,
characterized,
that the removal device (12) is assigned a measuring device (12 ') by means of which a diameter (D) of the coil (4) can be determined, while the coil (4) rests with the first partial area on the first support (10) and / or rests with the second partial area on the first or the second support (10, 15). Removal system according to one of Claims 7 to 12,
characterized,
that the removal device (12) is designed as a robot. Removal system according to one of Claims 7 to 13,
characterized,
that the removal device (12) has an optical detection device (14) for detecting the binding strips (5) surrounding the coil (4).

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