EP3463710B1 - Straightening machine - Google Patents

Description

The invention relates to a straightening machine for wire, rod or strip-shaped straightening made of steel, comprising a machine frame and a plurality, preferably six or eight, arranged on the machine frame straightening devices for straightening the Richtguts, wherein at least two of the straightening devices structurally differ from each other to Richtgüter with different Richtguteigenschaften, preferably different thicknesses, straighten, and wherein per straightening device, a feeding device is provided, via which a straightening straightening material to be fed to the straightening device.

Such straightening machines are known, for example, from the field of reinforced concrete construction and are used here to straighten steel coils unwound from reels for further processing into reinforcing elements. The WO 2015/149088 A1 discloses a leveler according to the preamble of claim 1.

Straightening machines with more than one straightening device have the purpose of enabling the processing of wire-shaped straightening material with different wire diameters, and by providing a plurality of straightening devices, it is possible to change back and forth between the wire diameters quickly and easily. So far, it has been limited to a wire diameter range of 6 to 16 mm.

Today, however, there is a need for a wire diameter range up to 20 mm. There are also country-specific differences in the required steel quality. For example, a different steel quality is required in Germany than in Austria. This poses a great challenge for companies operating in border areas, since not only does it have to cover a certain wire diameter range, but also for different steel grades.

Now one might consider to take this requirement into account by increasing the number of straightening devices accordingly. However, this will inevitably lead to a straightening machine with very large dimensions, which has further disadvantages. For example, the straightening machine can no longer be loaded into a transport container to be set up at another production location - in the case of mobile production equipment.

The objective technical object of the present invention is therefore to provide a straightening machine according to the preamble of claim 1, which avoids the disadvantages of the prior art mentioned and allows a higher flexibility in manufacturing with simultaneous compactness of the straightening machine.

This object is achieved by a straightening machine according to the features of the independent claim 1.

It is therefore provided according to the invention that at least one feed device, preferably all feed devices, comprises a straightening device, with which at least one further straightening material to be straightened can be fed to the straightening device.

By providing a Richtgutwechselvorrichtung in at least one feeder, it is possible to increase the number of processable different straightening goods with almost constant machine size, whereby the flexibility of production is increased. At the same time, a standstill of the machine can be avoided if a certain straightening is completely unwound from a reel and the old reel must be replaced by a new one. By providing the Richtgutwechselvorrichtung a fresh Richtgutstrang can already be clamped in the machine, which then when the old reel is running low, fully automatically within a few seconds of the associated straightening device can be fed.

According to preferred embodiments, it is provided that the at least two straightening devices which are designed to straighten straightening goods with different straightening properties, preferably different thicknesses, are constructive in their dimensions, and / or in their construction, and / or in the design of their directional nozzles differ from each other. With regard to the design, it can be provided, for example, that a straightening device for processing thin straightening has side plates made of aluminum, whereas this is not sufficient for a straightening device for processing thicker straightening reasons of stability.

The flexibility of the straightening machine can be further increased by the fact that at least one straightening device is designed to direct straightening goods with different Richtguteigenschaften, preferably different thicknesses, wherein in a change from a first straightening with first properties on a second straightening with second, deviating therefrom Characteristics, an adaptation of at least one straightening device on the deviating properties is vornehmbar. Advantageously, an adaptation of the at least one straightening device takes place in a limited area compared to the prior art, for example in a wire diameter range of +/- 1 mm.

The term straightening properties are understood to mean not only properties which relate to the external geometry of the straightening material, but also physical and / or chemical properties which have a direct influence on the steel quality.

It is particularly advisable that the straightening devices used in the straightening device are designed as rotor straightening devices. Such Rotorrichtvorrichtungen are for example in the European patent application EP 0800876 A2 wherein the disclosure content of this patent application is explicitly to be added to the disclosure content of the present application.

It is envisaged that at least one straightening device is adapted to direct straightening goods with different Richtguteigenschaften, preferably different thicknesses, wherein when changing from a first straightening with first properties on a second straightening with second, different properties, an adaptation of at least a straightening device can be adapted to the deviating properties, and that this at least one straightening device is a rotor straightening device, the adaptation of the at least one straightening device to the deviating properties can be fully automatic by the adjusting unit of the rotor straightening device.

It has further proven to be advantageous that the leveler has at least one separating device, preferably cutting device, for separating the straightened Richtguts with a certain length and at least one feed device for transporting the Richtguts in a feed direction, wherein the at least one separating device and the at least one feed device define a production line, and / or the straightening devices are arranged between the at least one separating device and the at least one advancing device, and / or the at least one advancing device comprises at least one pair of rollers comprising a drivable roller and a cooperating counter-roller, wherein the at least one drivable roller is relative to the counter-roller at least one feed position with a first distance to the counter-roller and a change position can take a second, greater distance to the counter-roller, wherein in the feed Richtgut, which is between the driven roller and the counter-roller is arranged in the feed direction is conveyed and in the change position another straightening in the at least one feed device can be exchanged and thus the production line can be fed.

The advantages of these embodiments or a combination thereof are particularly to be borne when the straightening devices and the associated feeding devices are arranged on a common carrier and the common carrier relative to the at least one separating device and the at least one feed device is adjustable, so that of a certain straightening device directed Richtgut the at least one production line can be supplied, wherein it is preferably provided that the common carrier is adjustable transversely to the feed direction substantially. Ultimately, this can be supplied to the at least one production line in a very efficient manner straightened by a particular straightening straightening.

In order to increase the flexibility of the leveler as much as possible, but at the same time to ensure that it is transportable, it makes sense that the machine frame is designed such that the straightening machine in a transport container, preferably with a width of 2350 mm and a Height of 2600 mm, can be arranged, and / or that the straightening devices in the position of use of the straightening machine substantially on a line, which preferably includes an angle of about 45 ° to the ground, are arranged.

Further advantageous embodiments are defined in the dependent claims 13 to 15.

Fig. 1

eine erste bevorzugte Ausführungsform der erfindungsgemäßen Richtmaschine in einer schematischen Darstellung,

Fig. 2

eine zweite bevorzugte Ausführungsform der erfindungsgemäßen Richtmaschine in einer schematischen Darstellung,

Fig. 3a

einen Ausschnitt des Querschnitts der Richtmaschine gemäß der ersten Ausführungsform entlang der Produktionslinie,

Fig. 3b

eine Draufsicht auf die beiden unteren antreibbaren Rollen der Vorschubvorrichtung gemäß der ersten Ausführungsform samt Richtgutwechselvorrichtung,

Fig. 4a und 4b

in einer schematischen Darstellung ein Rollenpaar einer Vorschubvorrichtung in der Vorschubstellung (Figur 4a) und in der Wechselstellung (Figur 4b),

Fig. 5a und 5b

die erste bevorzugte Ausführungsform der erfindungsgemäßen Richtmaschine (Fig. 5a) samt einer Querschnittsdarstellung der in einem Transportcontainer angeordneten Richtmaschine (Fig. 5b),

Fig. 6a und 6b

eine dritte bevorzugte Ausführungsform der erfindungsgemäßen Richtmaschine (Fig. 6a) samt einer Querschnittsdarstellung der in einem Transportcontainer angeordneten Richtmaschine (Fig. 6b), und

Fig. 7a und 7b

eine vierte bevorzugte Ausführungsform der erfindungsgemäßen Richtmaschine (Fig. 7a) samt einer Querschnittsdarstellung der in einem Transportcontainer angeordneten Richtmaschine (Fig. 7b).

Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the drawings.
Show in it

Fig. 1

a first preferred embodiment of the straightening machine according to the invention in a schematic representation,

Fig. 2

a second preferred embodiment of the straightening machine according to the invention in a schematic representation,

Fig. 3a

a section of the cross section of the leveler according to the first embodiment along the production line,

Fig. 3b

a top view of the two lower drivable rollers of the feed device according to the first embodiment, including Richtgutwechselvorrichtung,

Fig. 4a and 4b

in a schematic representation of a pair of rollers of a feed device in the feed position ( FIG. 4a ) and in the exchange position ( FIG. 4b )

Fig. 5a and 5b

the first preferred embodiment of the straightening machine according to the invention ( Fig. 5a ) together with a cross-sectional representation of the straightening machine arranged in a transport container ( Fig. 5b )

Fig. 6a and 6b

A third preferred embodiment of the straightening machine according to the invention ( Fig. 6a ) together with a cross-sectional representation of the straightening machine arranged in a transport container ( Fig. 6b ), and

Fig. 7a and 7b

A fourth preferred embodiment of the straightening machine according to the invention ( Fig. 7a ) together with a cross-sectional representation of the straightening machine arranged in a transport container ( Fig. 7b ).

FIG. 1 shows a straightening machine 1 for wire-shaped Richtgut 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' wherein a total of 6 straightening devices 8, 9, 10, 11, 12 and 13 are provided. These straightening devices 8, 9, 10, 11, 12 and 13 are designed as rotor straightening devices. The straightening devices 8, 9, 10, 11, 12 and 13 are arranged on a common carrier 17. Each straightening device 8, 9, 10, 11, 12 and 13 is in each case assigned a feed device 14, 15, via which straightening goods 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7 'of the respective straightening device can be fed. The feed devices 14, 15 each comprise a Richtgutwechselvorrichtung 14, 15, with which in each case another to be straightened Richtgut 2 ', 3', 4 ', 5', 6 'and 7' of the associated straightening devices 8, 9, 10, 11, 12th and 13 can be fed. Details of this Richtgutwechselvorrichtungen 14 and 15 are based on the FIGS. 3a and 3b and 4a and 4b explained. The feeders 14, 15 are also arranged on the carrier 17. Per leveling device are two unwinding devices 16, with which by the respective straightening device 8, 9, 10, 11, 12 and 13 to be straightened 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' of reels 36 can be unwound provided.

In the in FIG. 1 shown position is in each case a certain Richtgut 2, 3, 4, 5, 6, and 7 the straightening devices 8, 9, 10, 11, 12 and 13, respectively. Parallel to this, an alternative straightening material 2 ', 3', 4 ', 5', 6 'and 7' are provided in the Richtgutwechselvorrichtungen 14 and 15, which within a few seconds instead of the Richtgüter 2, 3, 4, 5, 6, and 7 of the respective straightening device 8, 9, 10, 11, 12 and 13 can be fed.

In the exemplary embodiment shown, the straightening device 8 is designed to direct a straightened material 2 and 2 'with a specific thickness 25. As soon as the straightening material 2 is completely unwound from the corresponding reel 36, a straightening material 2 'with the same thickness 25 can be fed directly to the straightening device 8 without the production process having to be interrupted for a longer time. During the processing of the Richtgut 2 'or one of the other straightening goods 3, 3 ', 4, 4', 5, 5 ', 6, 6', 7, 7 ', the spent reel 36 of Richtgut 2 can be replaced during operation.

Compared to the straightening device 8, the straightening device 13 is provided to direct a straightened 7 and 7 'with a different thickness 26.

The straightening device 11 is intended to direct straightening goods 5, 5 'with different thicknesses 27 and 28, wherein when changing from the straightening material 5 with a first thickness 27 on the straightening material 5' with a second deviating thickness 28 an adjustment of the straightening device 11 can be made to the different thickness 28.

The thicknesses 25, 26, 27 and 28 are exemplary of different Richtguteigenschaften.

Overall, with the in the FIG. 1 shown straightening machine 1 are processed at a constant size compared to the prior art up to twelve different straightening goods instead of up to six different Richtgütern in a quick and easy way. It is readily conceivable, the Richtgutwechselvorrichtungen 14 and 15 form such that instead of two Richtgütern three or more straightening goods of a particular straightening device can be fed. In this way, the system is almost arbitrarily scalable.

The leveler 1 in the in FIG. 1 In the embodiment shown, a separating device 18 in the form of a cutting device for separating a straightened Richtguts 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' with a certain length 19 and a feed device 20, 21 for transporting the Richtguts 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' in a feed device 22, wherein the separating device 18 and the Feed device 20, 21 define a production line 23.

Specifically, the advancing device 20, 21 in the state shown of the leveler 1 transports the straightened with the reference numeral 4 from the unwinding 16 to the straightening device 10, through this straightening device 10 and to the separator 18. The straightened Richtgut 4 with a desired length 19 far enough out of the separator 18 out, the separator 18 is activated and the directed Richtgut 4 separated with the length 19 of the remaining Richtgutstrang.

If instead of Richtguts 4 in the Richtgutwechselvorrichtung 14, 15 of this straightening device 10 stocked Richtgut 4 'of the straightening device 10 are supplied, the Richtgutwechselvorrichtung 14, 15 as described below is active.

Alternatively, however, one of the straightening goods 2, 3, 5, 6, and 7 of the production line 23 are supplied, namely by the carrier 17, on which the straightening devices 8, 9, 10, 11, 12 and 13 and the associated feeding devices 14, 15 are arranged relative to the separating device 18 and the feed device 20, 21 is adjusted. The adjustment takes place substantially transversely to the feed direction 22. This direction is in the FIG. 2 indicated by the reference numeral 37. In this case, then one of the other straightening devices 8, 9, 11, 12 or 13 is active instead of the straightening device 10.

About the respective Richtgutwechselvorrichtung 14, 15 can then also a change between the Richtgütern 2 and 2 ', 3 and 3', 5 and 5 ', 6 and 6' or 7 and 7 'are made.

Overall, therefore, within a very short time each of the stocked Richtgüter 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' of the production line 23 are supplied and indeed by the action a Richtgutwechselvorrichtung 14, 15 of the straightening devices 8, 9, 10, 11, 12 or 13 and / or by a Adjustment of the carrier 17 relative to the separating device 18 and the feed device 20, 21st

FIG. 2 shows a leveler 38 according to a second preferred embodiment. The structure is substantially the same as in the leveler 1 according to FIG. 1 , A fundamental difference, however, is that instead of a single production line 23 now two production lines 23 are provided. The common carrier 17 occupies a position relative to the two production lines 23 in the state shown in which the straightening material 3 or 6 directed by the straightening devices 9 and 12 is fed to the production lines 23.

The provision of several production lines 23 has the advantage that can be addressed in parallel operation, which in the same time with two production lines 23 the double, in three production lines 23 the triple output etc. allows.

Like from the FIG. 3a shows, the feed device 20, 21 comprises two pairs of rollers 20 and 21, each composed of a driven roller 29 and a cooperating counter-roller 30. By an opposite rotational movement of these rollers 29 and 30, it is possible a Richtgut 4, which is located between the two rollers, in the feed direction 22, that is in the direction of the straightening device 10 and therethrough in the direction of the separating device 18 (see FIG. 1 ) to transport. The drivable rollers 29 are via an electric motor 42 (see FIG. 3b ). The peripheral sides of the drivable rollers 29 have a corrugation in order to increase the friction with the to-be-driven 4 to be driven. The counter-rollers 30 are not actively driven themselves. Rather, they are non-positively applied to the straightening material 4 and rotate automatically by the movement of the Richtguts 4 in the feed direction 22 in opposite directions.

Like from the FIG. 3b As can be seen, the Richtgutwechselvorrichtung 14, 15 may be formed such that it has a guide device 14 and a releasable clamping device 15. In this case, the guide device 14 and the releasable clamping device 15 are each constructed in two parts, wherein a first part 43 and 45 of the guide device 14 of the guide of the Richtguts 4 and a second part 44 and 46 of the guide device 14 of the guide of the interchangeable Richtguts 4 'serve. Accordingly, the releasable clamping device is divided into two parts, wherein a first part 47 interacts with the straightening 4 and a second part 48 with the straightening 4 '. The components 43 and 45 of the first part of the guide device 14 and the components 44 and 46 of the second part of the guide device 14 are respectively disposed adjacent and opposite each other relative to the drivable roller 29 of the roller pair 21.

The two parts 47 and 48 of the detachable clamping device 15 can assume two states, namely a state in which the straightening material 4 or 4 'is held by the releasable clamping device 15, and a state in which the straightening material 4 or 4' is held. can move freely through the detachable clamping device 15.

The FIGS. 4a and 4b schematically show one of the pairs of rollers formed from the driven roller 29 and the cooperating counter-roller 30 and that in the FIG. 4a in the feed position 31 and in the FIG. 4b in the change position 33.

In the feed position 31, the drivable roller 29 assumes a first distance 32 relative to the counter roller 30, which corresponds essentially to the thickness of the straightening material 4 arranged between the rollers 29 and 30. The rollers 29 and 30 are non-positively or frictionally on the straightening 4 and can thus promote it by an opposite rotational movement.

In the change position 33, the drivable roller 29 takes a second, larger distance 34 to the counter-roller 30 a. This means that another straightening material 4 '- or 2, 2', 3, 3 ', 5, 5', 6, 6 ', 7, 7' - in the feed device 20, 21 einwechselbar and thus the production line 23 can be fed (see FIG. 1 or 2 ).

Specifically, a first in the production line 23 located Richtgut 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' as follows by a second Richtgut 2, 2 ' 3, 3 ', 4, 4', 5, 5 ', 6, 6', 7, 7 'are replaced. First, the straightening material 2, 2', 3, 3 ', 4 currently located in the production line 23, 4 ', 5, 5', 6, 6 ', 7, 7' advanced by means of the corresponding feed device 20, 21 to behind the active straightening device 8, 9, 10, 11, 12, 13. In this case, there are the pairs of rollers of the feed device 20, 21 in the feed position 31. The releasable clamping device 15 is open. Subsequently, the pairs of rollers of the feed device 20, 21 move from the feed position 31 in the change position 33. The detachable clamping device 15 closes and is moved together with the guide device 14 substantially transversely to the feed direction 22 and so far until the adjacent arranged Richtgut 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' between the roller pairs of the feed device 20, 21 is located. If the substitute straightening material 2, 2 ', 3', 3 ', 4, 4', 5, 5 ', 6, 6', 7, 7 'is a straightening material with different straightening properties 25, 26, 27, 28 if necessary, at the same time an adjustment of the straightening device 8, 9, 10, 11, 12, 13 made on the deviating Richtguteigenschaften 25, 26, 27, 28. Subsequently, the pairs of rollers of the feed device 20, 21 move from the change position 33 in the feed position 31. The releasable clamping device 15 is opened and the feed device 20, 21, the substitute Richtgut 2, 2 ', 3, 3', 4, 4th ', 5, 5', 6, 6 ', 7, 7' in the direction 22 of the straightening device 8, 9, 10, 11, 12, 13, pass through them and to the separating device 18. Optionally, while still the rest of the old Richtguts 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' finally from the production line 23 using the new Richtguts 2, 2nd ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7' postponed. This rest can but just as easily be removed manually or with another tool.

It should be noted that the direction in which the guide device 14 and the releasable clamping device 15 can be adjusted in the course of the change process, in the FIGS. 1 . 2 and 3b is provided with the reference numeral 35. This direction is substantially parallel to the adjustment direction 37 of the common carrier 17 in the course of a change between the straightening devices 8, 9, 10, 11, 12, 13, which in an analogous manner to a change between straightening goods 2, 2 ', 3, 3' , 4, 4 ', 5, 5', 6, 6 ', 7, 7', with which a single straightening device 8, 9, 10, 11, 12, 13 can be supplied, takes place.

FIG. 5a shows again the straightening machine 1 according to the first preferred embodiment (see FIG. 1 ). FIG. 5b shows this straightening machine 1 in a cross-sectional view, wherein the straightening machine 1 is additionally arranged in a transport container 54. The transport container 54 has a width 41 of 2350 mm and a height 55 of 2600 mm. At these dimensions of the transport container 54, the machine frame 51 of the leveler 1 is adjusted, so that the leveler 1 in the transport container 54 can be arranged. In order to maximize the available space in the best possible way, the straightening devices 8, 9, 10, 11, 12 and 13 are arranged on a line 58 (dashed line). This includes an angle 40 to the substrate 56 of about 45 °. The six straightening devices 8, 9, 10, 11, 12 and 13 are arranged on a common carrier 17. This can, by the direction of a particular straightening device 8, 9 10, 11, 12 and 13 straightened Richtgut 2, 2 ', 3, 3', 4, 4 ', 5, 5', 6, 6 ', 7, 7th 'supply the production line 23, are adjusted in a direction 37 transverse to the feed direction 22.

FIG. 6a shows a straightening machine 49 according to a third preferred embodiment. An essential difference to the second preferred Embodiment (cf. FIG. 2 ) is that the straightening machine 49 comprises eight straightening devices 8, 9, 10, 11, 12, 13, 52 and 53. These are arranged on a common carrier 17 and can be supplied via an adjustment of the carrier 17 two production lines 23. FIG. 6b shows the straightening machine 49 in an arrangement in a transport container 54 in a cross-sectional view.

Figure 7a shows a leveler 50 according to a fourth preferred embodiment. The straightening machine 50 comprises eight straightening devices 8, 9, 10, 11, 12, 13, 52 and 53. These straightening devices are connected to the machine frame 51 in comparison to the other embodiments. There is no need for adjustability, since all straightening devices 8, 9, 10, 11, 12, 13, 52 and 53 are already arranged on a production line 23. FIG. 7b shows the straightening machine 50 in an arrangement in a transport container 54 in a cross-sectional view.

Claims (15)

1. A straightening machine (1, 38, 49, 50) for straightening material (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') of steel in wire, bar or strip form, including a machine frame (51) and a plurality of, preferably six or eight, straightening devices (8, 9, 10, 11, 12, 13, 52, 53) arranged on the machine frame (51) for straightening the straightening material (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7'), wherein at least two of the straightening devices (8, 9, 10, 11, 12, 13, 52, 53) differ structurally from each other in order to straighten straightening materials (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') having different straightening properties, preferably differing thicknesses (25, 26, 27, 28), wherein provided for each straightening device (8, 9, 10, 11, 12, 13, 52, 53) is a feed device (14, 15), by way of which a material (2, 3, 4, 5, 6, 7) which is to be straightened can be fed to the straightening device (8, 9, 10, 11, 12, 13, 52, 53), characterised in that at least one feed device (14, 15), preferably all feed devices (14, 15), includes a straightening material change device (14, 15), with which at least one further material (2', 3', 4', 5', 6', 7') which is to be straightened can be fed to the straightening device (8, 9, 10, 11, 12, 13, 52, 53).
2. The straightening machine (1, 38, 49, 50) according to claim 1 wherein the at least two straightening devices (8, 9, 10, 11, 12, 13, 52, 53) which are adapted to straighten materials (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') having different straightening properties, preferably different thicknesses (25, 26, 27, 28), structurally differ from each other in their dimensions (24, 39) and/or in their structural form and/or in the configuration of their straightening nozzles.
3. The straightening machine (1, 38, 49, 50) according to claim 1 or claim 2 wherein the machine frame (51) is of such a configuration that the straightening machine (1, 38, 49, 50) can be arranged in a transport container (54), preferably of a width (41) of 2350 mm and a height (55) of 2600 mm.
4. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 3 wherein in the position of use of the straightening machine (1, 38, 49, 50) the straightening devices (8, 9, 10, 11, 12, 13, 52, 53) are arranged substantially on a line (58) which preferably includes an angle (40) of about 45° relative to the ground (56).
5. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 4 wherein the straightening machine (1, 38, 49, 50) has at least one severing device (18), preferably a cutting device, for severing the straightened material (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') with a predetermined length (19) and at least one advance device (20, 21) for transporting the straightening material (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') in an advance direction (22), wherein the at least one severing device (18) and the at least one advance device (20, 21) define a production line.
6. The straightening machine (1, 38, 49, 50) according to claim 5 wherein the straightening devices (8, 9, 10, 11, 12, 13, 52, 53) are arranged between the at least one severing device (18) and the at least one advance device (20, 21).
7. The straightening machine (1, 38, 49, 50) according to claim 5 or claim 6 wherein the at least one advance device (20, 21) has at least one pair of rollers comprising a drivable roller (29) and a counterpart roller (30) cooperating therewith, wherein the at least one drivable roller (29) relative to the counterpart roller (30) can assume at least one advance position (31) at a first spacing (32) relative to the counterpart roller (30) and a change position (33) at a second greater spacing (34) relative to the counterpart roller (30), wherein in the advance position (31) straightening material (3, 4, 6) arranged between the drivable roller (29) and the counterpart roller (30) can be conveyed in the advance direction (22) and in the change position (33) a further straightening material (3', 4', 6') can be changed into the at least one advance device (20, 21, 40, 41) and thus can be fed to the production line (23, 24).
8. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 7 wherein the straightening devices (8, 9, 10, 11, 12, 13, 52, 53) and the feed devices (14, 15) are arranged on a common carrier (17).
9. The straightening machine (1, 38, 49, 50) according to claim 8 and one of claims 5 to 7 wherein the common carrier (17) is displaceable relative to the at least one severing device (18) and the at least one advance device (20, 21) so that the straightening material (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') which is straightened by a given straightening device (8, 9, 10, 11, 12, 13, 52, 53) can be fed to the at least one production line (23).
10. The straightening machine (1, 38, 49, 50) according to claim 9 wherein the common carrier (17) is displaceable in a direction (37) extending substantially transversely relative to the advance direction (22).
11. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 10 wherein the straightening devices (8, 9, 10, 11, 12, 13) are in the form of rotor straightening devices.
12. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 11 wherein at least one straightening device (11) is adapted to straighten materials (5, 5') having different material properties, preferably different thicknesses (27, 28), wherein upon a change from a first material (5) having first properties (27) to a second material (5') having second properties (28) differing therefrom adaptation of the at least one straightening device (11) to the differing properties (28) can be implemented.
13. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 12 wherein the straightening material change device (14, 15) is displaceable in a direction (35) which is oriented substantially transversely relative to the direction (22) in which the material (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') which is to be straightened can be fed to the straightening devices (8, 9, 10, 11, 12, 13, 52, 53).
14. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 13 wherein the material change device (14, 15) has at least one guide device (14) and/or at least one releasable clamping device (15).
15. The straightening machine (1, 38, 49, 50) according to one of claims 1 to 14 wherein provided for each straightening device (8, 9, 10, 11, 12, 13, 52, 53) is at least one and preferably precisely two unwinding device (16) with which the material (2, 2', 3, 3', 4, 4', 5, 5', 6, 6', 7, 7') which is to be straightened by the straightening device (8, 9, 10, 11, 12, 13, 52, 53) can be unwound from a reel (36).

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