EP2463040B1 - Rotary wire straightener - Google Patents

Description

The invention relates to a straightening device for rotating straightening of wire, in which a plurality of straightening devices, each having a directional nozzle are provided on a base for passing the wire to be straightened, comprising an inlet part and an outlet part and between these at least one rotating straightening unit, wherein the Directional nozzles of inlet and outlet part are arranged centrically, while the directional nozzle of the at least one rotating straightening unit is seated eccentrically in a rotatable about the central axis of rotation body, with a modular structure of the straightening mechanism of individual assembly modules, wherein the inlet part and outlet part each represent a mounting module.

A straightener of this kind is in the US 3 264 855 A described.

The purpose of straightening wire for wire processing machines is to bend the wire in all planes to reduce or balance its residual stresses, which is ultimately reflected in as straight a wire as possible.

Usually straightening machines with rotating straightening blades are used in the wire industry, in which radially outwardly offset directional nozzles are used, which bend the wire as it passes in all planes and thereby produce a residual stress equilibrium.

In known straightening machines, the straightening process must frequently be stopped to change the straightening parameters (radial position of the straightening elements) in order to be able to carry out the corresponding adjustments (cf. GB 1 218 487 A . US 3 264 855 A . EP 0 800 876 B1 ). In such straightening machines, however, the conversion to a different wire diameter is very laborious, which is particularly disadvantageous when the Richtaniage continuously different wire diameter must be considered, if z. B. in the context of an order to edit a plurality of wire diameters. From the DE 197 09 733 C2 is a straightening device for the rotating straightening of wire known in which the conversion to different wire diameters can be made relatively quickly and automatically. In this case, the inlet part and the outlet part are formed as a turntable and have a sprocket into which a pinion engages. The turntables rotate about an axis, with different directional nozzles can be brought into a working position. A middle part, which is arranged between inlet part and outlet part and which comprises a plurality of rotating straightening units, can likewise be rotated about an axis in such a way that different directional nozzles, each mounted in a rotatable rotary body, can be brought into a desired working position. Each rotary body is driven by a belt drive by a motor, whereby the respectively located in the working position of the center nozzle can rotate about the wire at a certain speed.

Although an automatic adjustment of the directional nozzles for different wire diameters is possible in this known straightening, it still requires one, albeit short-term, interruption of the straightening process. In addition, the structural complexity of the use of a plurality of turntables and arranged in these directional nozzles or attached to these rotating bodies with directional nozzles and the associated drive training is relatively expensive and it may still happen that the attached in the device directional nozzles are additionally replaced when processing of wire of a diameter is required, which can not be covered by the existing directional nozzles.

From the DE 691 00 108 T2 (according to the EP 0 473 739 B1 ) is a straightening with a rotor known, which is driven by an electric motor by means of a toothed belt. In this case, a plurality of directional nozzles, axially offset from one another, are mounted within the rotor, of which a mean can also be adjusted in the radial direction during operation of the rotor. The radial position of the directional nozzle to the axis of rotation of the rotor is effected via an axially hydraulically adjustable, wedge-shaped part, which cooperates with a contact roller, the radial deflection of the mean directional nozzle causes (upon counteracting a spring preload on this) with axial displacement of the wedge-shaped part. However, this known straightening is of a relatively complicated overall structure, which allows only a change in the eccentricity of the directional nozzle of the middle straightening unit, but not other directional nozzles. If changes in the axial distances of the directional nozzles relative to each other are desired, the corresponding changes require considerable manual intervention. The assembly of this straightening mechanism is complicated, so that even if any malfunction occurs (such as due to material fracture o. Ä.) Extensive repair work may be required.

The invention has for its object to provide a straightener of the type mentioned, which is particularly simple and quick to assemble and in which changes and / or additions of the straightening structure are simple and quick to execute.

According to the invention this is proposed in a straightener of the type mentioned that all mounting modules, except the inlet part and the outlet part, in addition to at least one straightening unit with a rotating body bearing housing also have a motor for driving the rotating body of at least one straightening unit and all mounting modules the base are attached separately.

The straightener according to the invention creates due to its modular design of individual units the possibility for a particularly quick and easy assembly, with later changes without difficulty quickly and inexpensively and are very variable feasible.

The structure of the inventive straightener in a modular structure and its assembly of individual mounting modules, each of which prefabricates either the inlet part or the outlet part or at least one straightening unit with a rotating body bearing bearing housing together with a drive motor for the rotary body has, all of these mounting modules on the base of the straightening are fastened separately from each other, not only allows a surprisingly fast installation of the entire straightener, but also brings a considerable saving in the spare parts inventory for such straightening, because no longer managed a large number of individual components separately and kept in stock but only the mounting modules already prefabricated as individual mounting elements mounting modules, which include the possible diversity of their structure, only a relatively small number of a few variants. The individual bearing solution achieved in the invention as a result of the mounting modules shows (compared to a solution with directional wings) a lower imbalance because of other tools and because of the saved directional wing. In addition, directional wings must be replaced frequently, since the threads for the pressure screws for fixing the straightening jaws wear out quite quickly.

The structure of the invention provides the ability to construct the straightening systems according to the invention in a kind of modular system of prefabricated units, these modules designed as mounting modules are basically used for different straightening, so that each straightener can be constructed from such standardized basic units.

If an inventive straightening, z. B. at a later date, be supplemented by one or more additional straightening units with other directional nozzles, the modular structure of the straightening invention allows a rapid change by inserting or removing individual mounting modules, this change also also only a relatively small downtime of the relevant straightening conditionally. Since the modular structure of the straightening mechanism according to the invention also allows good accessibility to each rotating straightening unit with its respective directional nozzle, even a replacement of a directional nozzle in a straightening unit can be carried out quickly.

The individual straightening units used in the invention in the individual assembly modules can achieve a symmetrical bearing load, since the rotational body can be driven via a centrally arranged belt. In addition, they provide better accessibility to the straightening process: the adjustability of the assembly modules and these straightening units allows a much easier threading of the wire and a better visibility of the actual investment behavior of the wire to the directional nozzles.

The mounting modules of a straightening mechanism according to the invention, which are separately fastened on the basis of the same, can also be adjusted quickly in their respective position individually.

A particularly preferred embodiment of the invention consists in the fact that the mounting modules on the basis of the straightening mechanism are all parallel to each other and each perpendicular to the axis of rotation of the rotary body of the respective mounting module adjustable. As a result, by simple adjustment of one or more mounting modules in this direction, the radial position of the relevant straightening element within the overall arrangement can be carried out quickly and easily and thereby make the possible adjustment, possibly even during operation of the straightening.

Another preferred embodiment of the straightener according to the invention also consists in that the mounting modules as well as the inlet part and the outlet part in the conveying direction of the wire (axially) are adjustable relative to each other. By this adjustability of the axial distance between the individual straightening units can also be made an adjustment of this straightening parameter, possibly in conjunction with a further adjustment perpendicular to the wire conveying direction, both during operation of the straightener, which results in a great flexibility for the inventive straightening. The axial adjustment of the assembly modules or their straightening units allows a very sensitive adjustment for the straightening process.

Is provided at a straightening device according to the invention between the mounting module for the inlet part and the outlet part only another mounting module, then it is advantageous if only the mounting modules for the inlet part and the outlet part parallel to the conveying direction of the wire mounted relative to the other mounting module adjustable are, wherein, also advantageous, the further mounting module can be assigned an adjustability perpendicular to the conveying direction of the wire.

A very particularly preferred embodiment of the straightening mechanism according to the invention also consists in that all the individual parts comprising a single mounting module are mounted on a common base plate or base of this mounting module, mounted for mounting this mounting module, only at the base of the straightening itself becomes.

Since in the straightener according to the invention all mounting modules, except the inlet part and the outlet part, always next to a rotating body and a directional bearing bearing housing also have a motor for driving the rotating body, each such mounting module includes at least one rotating straightening unit including the associated drive and thus ensures already self-sufficient full function of the rotating straightening unit. In addition, this also makes storage even simpler and cheaper, since then no assembly modules with rotating bodies without associated drive must be kept.

The individual assembly modules can initially be prepared for the assembly of the straightening mechanism according to the invention at the mounting location and then assembled to the finished straightening. Most preferably, however, all mounting modules are already designed as prefabricated units so that they can already be delivered to the assembly site and installed there immediately.

In a further preferred embodiment of the invention, the eccentricity of the directional nozzle of each rotating straightening unit to the central axis of the associated rotating body is adjustable, resulting in a particularly high flexibility of the straightening mechanism according to the invention. In this case, each rotational body is preferably provided for passing through its directional nozzle with a radially extending slot in which the respective directional nozzle spent in the desired radial position and then there is correspondingly positionally blocked.

A further preferred embodiment of the invention is that the directional nozzle in its eccentric position on the rotational body of its associated straightening unit by a on this fixed bracket can be fixed. In this case, this holder is particularly preferably formed from two attached to the two axial end sides of the rotary body cover plates, each having an opening for holding the directional nozzle on both sides of the rotary body. Thus, the directional nozzle can be aligned radially in these two openings on the rotating body and fixed therein.

Advantageously, the two lateral cover plates are each provided with a plurality of openings which are provided in different eccentricity to the central axis of the associated rotational body, wherein in each case an opening in the one cover plate of an opening in the other cover plate is provided accordingly.

In this case, the adjustment of the eccentricity of the position of each directional nozzle to the central axis of the associated rotational body preferably by turning this lateral cover plates feasible, allowing a particularly rapid and continuous adjustment of the eccentricity.

Another preferred embodiment is in this case for the case that each rotating body is provided with a radially extending slot, characterized in that each cover plate is designed as a cover strip which is adjustable parallel to the slot in the rotation body for adjusting the eccentricity of the directional nozzle. Even so, it is possible to achieve a rapidly feasible and continuous adjustment of the eccentricity of the directional nozzle on the rotary body.

The modular construction used in a straightening device according to the invention makes it possible in principle for such a straightening device to be able to displace the individual assembly modules in their relative position relative to each other, perpendicular and / or parallel to the conveying direction of the wire Changes in the straightening parameters can be accommodated, and this also during operation of the straightener, without this would have to be brought to a standstill. These adjustment movements of the individual assembly modules can be carried out automatically in a straightening device according to the invention also readily. In contrast, known straightening machines, in which an adjustment of the straightening parameters, in particular the radial position of the straightening in a rotating straightening unit during the operation of the straightening without standstill thereof are automatically carried out, usually of a relatively complicated structure, so that already complicated their assembly and consuming, subsequent changes - if at all possible - very labor-intensive and in the event of malfunction repair work usually only tedious and costly feasible. All these disadvantages are avoided by the modular design of the straightening mechanism according to the invention.

Fig. 1

eine perspektivische Darstellung (von schräg oben) eines erfindungsgemäßen Richtwerkes mit mehreren rotierenden Richteinheiten und einer Verstellbarkeit der Montagemodule in Richtung senkrecht zur Transportrichtung des Drahtes;

Fig. 2

eine Draufsicht auf das Richtwerk gemäß Fig. 1, wobei die einzelnen Richteinrichtungen parallel zur Basis des Richtwerkes in Höhe der Mittelachse des durchgeführten Drahtes geschnitten sind;

Fig. 3

eine perspektivische Darstellung (von schräg oben) auf eine andere Ausführungsform eines erfindungsgemäßen Richtwerkes mit drei rotierenden Richteinrichtungen, die parallel zur Förderrichtung des zugeführten Drahtes verstellbar sind;

Fig. 4

eine Draufsicht auf das Richtwerk gemäß Fig. 3, wobei jedoch (entsprechend der Darstellung der Fig. 2) die einzelnen Richteinrichtungen parallel zur Basis des Richtwerkes und auf Höhe der Mittelachse des zugeführten Drahtes geschnitten sind;

Fig. 5

eine perspektivische Schrägdarstellung einer weiteren Ausführungsform eines erfindungsgemäßen Richtwerkes mit nur einer rotierenden Richteinrichtung zwischen dem Einlaufteil und dem Auslaufteil, wobei beide letzteren parallel zur Drahtlängsrichtung des zugeführten Drahtes verstellbar sind;

Fig. 6

eine wieder andere Ausführungsform eines erfindungsgemäßen Richtwerkes, und

Fig. 7

eine Schnittdarstellung durch eine Richteinheit mit einem einen Rotationskörper tragenden Lagergehäuse bei einem erfindungsgemäßen Richtwerk.

The invention will be explained in more detail by way of example with reference to the drawings, in principle, by way of example. Show it:

Fig. 1

a perspective view (obliquely from above) of a straightening mechanism according to the invention with a plurality of rotating straightening units and an adjustability of the mounting modules in the direction perpendicular to the transport direction of the wire;

Fig. 2

a plan view of the straightening according to Fig. 1 wherein the individual straightening devices are cut parallel to the base of the straightening unit at the level of the central axis of the wire being cut;

Fig. 3

a perspective view (obliquely from above) of another embodiment of a straightening mechanism according to the invention with three rotating straightening devices, which are adjustable parallel to the conveying direction of the supplied wire;

Fig. 4

a plan view of the straightening according to Fig. 3 , but (as shown in the illustration of Fig. 2 ) the individual straightening devices are cut parallel to the base of the straightener and at the level of the central axis of the supplied wire;

Fig. 5

a perspective oblique view of another embodiment of a straightening mechanism according to the invention with only one rotating straightening device between the inlet part and the outlet part, wherein the latter are adjustable parallel to the wire longitudinal direction of the supplied wire;

Fig. 6

again another embodiment of a straightening mechanism according to the invention, and

Fig. 7

a sectional view through a straightening unit with a bearing a rotational body bearing housing in a straightening device according to the invention.

In the various embodiments of a straightening mechanism described in the figures, identical parts are always provided with the same reference numerals.

Fig. 1 shows in an oblique perspective view (from the top front) a straightener 1, the in Fig. 2 is shown in plan view, wherein in Fig. 2 the individual straightening units are shown cut and the cut is placed in each case through the directional nozzle.

As the Fig. 1 and 2 show, the straightener 1 first comprises a base 2, on which the individual parts of the straightening mechanism are mounted. In the base 2 is in the representations of the Fig. 1 and 2 to a base plate, however, the base could equally consist of a frame or other arrangement, if this or this is suitable that on her the various items of the straightener 1 in their desired Assignment can be attached to each other. So it could be in the base 2 z. B. also act to a machine frame of a wire processing machine, in the inlet side of the straightener is attached.

The straightener 1 comprises a plurality of straightening devices, namely an inlet part 3 on the inlet side, an outlet part 4 on the outlet side and a plurality of straightening units 5 arranged one behind the other between these, wherein a straightening nozzle 6 is provided in each straightening device.

In the inlet part 3 as well as in the outlet part 4, the directional nozzles 6 are arranged centrally to the (not shown in detail in the figures) wire guide, while the directional nozzles 6 are mounted in the straightening units 5 each in a rotary body 7, and eccentrically to the axis of rotation of the rotating body 7 offset.

Inlet and outlet part can be made completely the same (straightening unit with centric arrangement of the directional nozzle 6) or even slightly different or even in the form of one of the other straightening units.

That in the Fig. 1 and 2 shown straightening unit 1 has a modular structure:

It comprises a plurality of mounting modules 8. In this case, the inlet part 3 and the outlet part 4 are each designed as such a mounting module 8. In addition, assembly modules 8 are still present, each of which comprises a straightening unit 5 with a bearing housing 9, in which a rotary body 7 is supported, and additionally also a drive motor 11 connected via a drive belt 10 to the rotary body 7 of the respective bearing housing 9. In this case, to form such a mounting module 8, both the relevant straightening unit 5, consisting of the bearing housing 9 with the rotational body 7 rotatably mounted therein, and further the drive motor 11 with the drive belt 10 for driving the rotating body 7 on a common base plate 12 of the respective mounting module eighth assembled. This assembly unit 8 forming the assembly is mounted on the base 2 by the base plate 12 of the mounting module 8 is mounted on the base 2 of the straightening mechanism 1, in such a way that their position there is also adjustable, as in the Fig. 1 and 2 indicated by arrows c. In the in the Fig. 1 and 2 indicated adjustment direction c for the individual mounting modules 8 is an adjustment, which is aligned perpendicular to the conveying direction of the conveyed wire.

Like from the Fig. 1 and 2 can be seen on each mounting module 8 of the straightening unit 5 there is also a corresponding to this mounting module 8 drive motor 11th assigned. However, there is also the possibility to provide two straightening units 5 and only a common drive motor 11 as part of a mounting module, which will be described below with reference to Fig. 6 is shown by way of example.

Each straightening unit 5 consists, as in particular from the sectional view of Fig. 7 can be clearly seen, which shows a section through such a straightening unit 5, from a bearing housing 9, in which a rotary body 7 is rotatably mounted in the form of a turntable. This rotary body 7 is driven by means of the drive belt 10 from the drive motor 11 also belonging to this mounting module 8 and thereby rotates within the bearing housing. 9

The rotary body 7 comprises an eccentric receptacle for a directional nozzle 6. The eccentricity of the directional nozzle 6 within the rotating body 7 can in the in the Fig. 1 and 2 and 7 embodiment shown during operation of the straightening mechanism 1 are not changed. Instead, in such a straightening unit 1 is provided to adjust the straightening process contained in the mounting modules 8 straightening units 5 on the basis of the 2 straightening unit 1 in the in the Fig. 1 and 2 shown direction c (perpendicular to the wire longitudinal direction) to move, although such a sliding movement may possibly be carried out automatically without difficulty, which in the Fig. 1 and 2 however not shown.

As further shown in the sectional view of Fig. 7 shown, a radially directed slot 13 is introduced into the rotary body 7, in which the directional nozzle 6 can be moved radially when the machine is installed. By means of corresponding cover plates 14 with holes 15, 16 (both sides of the turntable 7), the directional nozzle 6 can be fixed in position.

In the cover plates 14, a bore 15 or more holes 15, 16 may be mounted at radially different distances from the central axis, so that different radial positions of the directional nozzle 6 can be determined by a rotation of the cover plate 14 with one and the same cover plate. Similarly, the cover plate 14 may be designed as a cover strip, which is parallel to the orientation of the elongated hole 13 slidably. For a free positioning of the directional nozzle 6 along the entire elongated hole 13 is possible.

Due to the shown modular structure of the straightener 1 can in the in Fig. 1 and 2 shown embodiment, in which each mounting module 8 has its own, its straightening unit 5 associated drive motor 11, the rotational speed for each rotating body 7 and thus the directional nozzle 6 fixed in this are varied. So z. B. different speeds at the individual straightening units 5 are realized, equally different directions of rotation are possible, or it can also be a certain angular offset between the straightening units 5 set and adapted at any time.

In addition, it is completely easily possible to change the number of straightening units 5 within the straightener 1 by either one or more mounting modules 8, each with a straightening unit 5 removed or additionally attached.

The fact that each mounting module 8 forms a self-contained unit, a very rapid assembly of such units on the basis of the 2 straightening unit 1 is possible.

It has been found in the experiment that the leadership of the wire in the straightener 1 in both the inlet 3, as well as in the outlet 4 is very important. For this purpose, the most accurate corresponding appropriate nozzle 6 whose bore diameter is as close as possible to the diameter of the wire to be treated, used or a relatively long guide path must be provided. It is also possible, the two mounting modules 8, each comprising the inlet part 3 and the outlet part 4, laterally displaceable (corresponding to the direction c in the Fig. 1 and 2 ) form, as it was found that in a purely centric arrangement of the directional nozzle 6 in the inlet 3 and in the outlet 4 it can lead to a "fluttering" of the wire.

In the 3 and 4 another embodiment for a straightener 1 is shown, wherein the representation of Fig. 3 basically the off Fig. 1 in this respect corresponds, as it again concerns a perspective view obliquely from above, while Fig. 4 a plan view of the straightening Fig. 3 shows, in turn, the individual straightening units 5 are each cut so that the cutting plane passes through the respective existing directional nozzle 6 therethrough.

The at the straightener 1 off 3 and 4 used assembly modules 8 correspond in structure to those of the representation of Fig. 1 in that, apart from the two assembly modules 8, which comprise the inlet part 3 and the outlet part 4, otherwise always arranged on a base plate 12 comprise a straightening unit 5, wherein in a bearing housing 9, a rotary body 7 (see. Fig. 4 ) is rotatably supported, which is driven in each case via a drive belt 10 of a same assembly module 8 still belonging drive motor 11. The individual parts of each assembly module 8, so the respective straightening unit 5, the associated drive motor 11 and the drive connection via the drive belt 10 are arranged together on a separate base plate 12. each Assembly module 8 can be performed as a prefabricated unit, which then only has to be mounted on the base 2 of the straightening unit 1.

In the straightener 1 from the 3 and 4 the individual mounting modules 8 between the inlet part 3 and the outlet part 4 are arranged side by side and aligned with each other, each mounting module 8 is adjustable in a direction d, which in this embodiment is parallel to the longitudinal axis of the wire to be treated. It can therefore be adjusted by changing the distance between the individual mounting modules 8, the distance between the individual straightening units 5.

In the embodiment shown in these figures, the two mounting modules 8, which comprise the inlet part 3 and the outlet part 4, are also arranged adjustable in the same lateral direction d.

In principle, it can be stated that the adjustment of the two straightening from the Fig. 1 and 3 can be combined with each other, ie that the individual mounting modules 8 both in the longitudinal direction (d) of the wire, as well as perpendicular thereto (c), can be adjustable.

The advantages associated with the straightener 1 from the Fig. 1 and 2 have already been described that in each assembly module 8 with a straightening unit 5 associated with the rotary body 7 own drive motor 10, of course, apply equally equally for the embodiments of 3 and 4 ,

The installation of the directional nozzles 6 in the rotating body 7 in the straightening units 5 of the straightener 1 from the 3 and 4 Again, as in connection with the sectional view of the Fig. 7 has already been described, are made, ie an adjustability of the eccentricity within a slot 3 in the rotary body 7 with a fixation on a double-sided cover plate 14 with a correspondingly arranged bore 15 or 16th

A modification of the embodiment for a straightener 1 according to the 3 and 4 is in Fig. 5 shown:

Here is between the inlet part 3 and the outlet part 4, only one mounting module 8, thus only one straightening unit 5, provided, wherein the bearing housing 9 of this straightening unit 5 is arranged concentrically to the directional nozzles 6 of inlet part 3 and outlet part 4. In this embodiment, the straightening process can now be influenced by the fact that the directional nozzles. 6 From the inlet part 3 and outlet part 4 parallel to the longitudinal direction of the supplied wire axially on the central mounting module 8 and its straightening unit 5 can be moved towards or away from this (movement again in the direction d ).

In Fig. 6 Finally, in a further perspective view (obliquely from above), but in a somewhat basic way, yet another embodiment of a straightening 1 shown, in addition to the mounting modules 8, which include the inlet part 3 and the outlet part 4, despite three straightening units. 5 only two other mounting modules 8 are used:

In this case, it is so that not three, but only a total of two drive motors 11 are provided for the three straightening units 5 between inlet part 3 and outlet part. In the embodiment shown here, namely, the rotational body of the two outer straightening units 5 are driven by a common drive motor 11, while only the central straightening unit 5 has a drive motor 11 assigned to it specifically.

While the mounting module 8 for the central drive unit 5 further includes this, the associated drive motor 11 and the drive belt 10, which are mounted on a common base plate 12 and together with this then form the desired unit, the two outer straightening units 5 together with the they drive output motor 11 mounted on a plan view in about U-shaped base plate 12 and form with this drive motor 11 and the associated drive belt 10 and the two pulleys 17 which are driven by the drive motor 11 and each of which for one of the two straightening units 5 as Power source is used, a common larger assembly in the form of a mounting module 8. The other mounting module 8, which carries the middle straightening unit 5, is here between the two side legs of the U-shaped base plate of the two outer straightening units 5 comprehensive assembly module 8 interposed and can there also perpendicular to the feed direction of the wire to be treated (c) are adjusted.

In this embodiment, for a straightener 1 principle, the modular structure is still maintained, but a drive 11 for the three straightening units 5 can be saved. On the other hand, here the two outer straightening units 5 are operated at the same speed and direction of rotation, and can also only be adjusted together perpendicular to the central axis.

Common to the illustrated in all figures embodiments of a straightener 1 whose always modular overall structure, which is composed of a plurality of individual mounting modules 8, wherein the scope of the individual mounting modules 8 may be different. However, the modular structure gives the possibility for a particularly rapid assembly of such a straightening mechanism, because the individual mounting modules can be prefabricated without difficulty and therefore only for installation on a common base element ("base") 2, independently and fixed There can also be adjusted in their position to each other. It is always possible to quickly and inexpensively such a straightening 1 by adding more mounting modules 8 with other straightening units 5 (with or without drive) to be provided, which is given in the context of modular structure, the possibility of doing more than one straightening unit to operate a common drive motor 11, as in connection with Fig. 6 is shown.

The illustrated modular concept of such straightening units 1 and the resulting construction of the entire straightening unit 1 from a plurality of independent straightening units 5 in the context of individual structural units (assembly modules 8) basically gives very great advantages in the setting of straightening parameters. The solutions used in previously known straighteners usually allow only an adjustment of the radial position of the straightening element, sometimes even the axial distance between the straightening elements, which usually beyond, however, no further control parameters can be considered, resulting in practice in The past could not enforce because the implementation effort to be used for this was very large, a variety of mechanical parts were needed and thus associated with a corresponding susceptibility to dirt.

Only the concept according to the invention for the construction of straightening units 1 makes it possible to be able to change a plurality of very different adjusting parameters, and this overall with a very rapid and inexpensive assembly of the overall device. Thus, the distance can be changed by the axial adjustment of the individual straightening units 5 to each other (ideally symmetrical), further also the accessibility (between the individual straightening units 5) for threading the wire can be set optimally large.

About an adjustment transversely to the axial direction (conveying direction of the wire) can also be easily adjusted a threading, in which the wire can be passed through all straightening units 5.

By a separate drive in the individual mounting modules 8, the rotation of the rotating body 7 in the various straightening units 5 varies and thereby z. B. different speeds in the individual straightening units 5 can be realized. Likewise, different directions of rotation are possible and it can also be a certain angular offset between the straightening units 5 set and adapted at any time.

The adjustment of the individual straightening units 5 can be realized by a corresponding adjustment of the mounting modules 8 manually or by motor without difficulty and the number of straightening units 5 can also be easily changed.

If in the context of the above text is spoken by "directional nozzles", then it should be noted that it should also be used as directional elements such as (single or multi-part) straightening jaws, bushings, rollers o. Ä.

Claims (13)

1. Straightening apparatus (1) for rotary wire straightening, in which a plurality of straightening devices (3, 4, 5) each with a directional nozzle (6) are provided on a base (2) for drawing through the wire to be straightened, said devices comprising an inlet part (3) and an outlet part (4) and between these at least one further straightening unit (5), the directional nozzles (6) of the inlet part (3) and outlet part (4) being disposed centrally while the directional nozzle (6) of the at least one further straightening unit (5) being seated eccentrically in a rotation body (7) rotatable around its central axis, with a modular construction of the straightening apparatus (1) from individual assembly modules (8), whereby inlet part (3) and outlet part (4) each represent an assembly module (8)
   characterised in that
   all assembly modules (8), excluding the inlet part (3) and the outlet part (4), in addition to at least one straightening unit (5) with a bearing housing (9) supporting the rotation body (7) of said unit, also have a motor (11) to drive the rotation body (7) of the at least one straightening unit (5) and all assembly modules are attached separately from each other to the base (2).
2. Straightening apparatus according to Claim 1 characterised in that all assembly modules (8) are executed as prefabricated structural units.
3. Straightening apparatus according to Claim 1 or 2 characterised in that the eccentricity of the directional nozzle (6) of each straightening unit (5) is displaceable to the central axis of the corresponding rotation body (7).
4. Straightening apparatus according to Claim 3 characterised in that each rotation body (7) is provided with a radially-running elongated hole (13) for pushing through its directional nozzle (6).
5. Straightening apparatus according to any of Claims 1 to 4 characterised in that the directional nozzle (6) on the corresponding rotation body (7) is fixed in its eccentric position by a mounting fastened to said body.
6. Straightening apparatus according to Claim 5 characterised in that the mounting for the directional nozzle (6) on the rotation body (7) consists of two cover plates (14) disposed on the two axial end faces of said body, said plates each having an opening for mounting the directional nozzle (6) on both sides of the rotation body (7).
7. Straightening apparatus according to Claim 6 characterised in that the two lateral cover plates (14) each have a plurality of openings (15, 16), which are arranged at varying eccentricity from the central axis of the corresponding rotation body (7), whereby in each case an opening is provided in the one cover plate (14) corresponding to an opening in the other cover plate (14).
8. Straightening apparatus according to Claim 7 characterised in that the eccentricity of the location of each directional nozzle (6) from the central axis of the corresponding rotation body (7) can be displaced by rotating the lateral cover plates (14, 14).
9. Straightening apparatus according to Claims 4 and 6 characterised in that each cover plate (14, 14) is constructed as a cover strip which is displaceable parallel to the elongated hole (13) in the rotation body (7) to displace the eccentricity of the directional nozzle (6).
10. Straightening apparatus according to any of Claims 1 to 9 characterised in that the assembly modules (8) on the base (2) are parallel to each other and are each displaceable perpendicular (c) to the rotational axis of the rotation body (7) of each assembly module (8).
11. Straightening apparatus according to any of Claims 1 to 9 characterised in that the assembly modules (8) are displaceable to each other in the feed direction (d) of the wire.
12. Straightening apparatus according to any of Claims 1 to 9 with only one assembly module (8) between inlet part (3) and outlet part (4) characterised in that only the inlet part (3) and the outlet part (4) are displaceable parallel to the feed direction (d) of the wire.
13. Straightening apparatus according to any of Claims 1 to 12 characterised in that all individual parts of an assembly module (8) are arranged on a common bed (12), which then only needs to be mounted on the base (2) of the straightening apparatus (1) to assemble this assembly module (8).

Images